2023 Chinese New Year Holiday Notice

2023 holiday notice

Dear Valuable Customers and Partners:

The Chinese New Year is fast approaching, and our manufacturing facilities will be closed to celebrate this important holiday.

From Jan 19, 2023 to Jan 28, 2023

We will resume normal business hours on Jan 29, 2023

During this time, please feel free to contact us at sale@renhotecpro.com for any urgent matters.

We hope you will have a happy and prosperous Chinese New Year, and we look forward to seeing you when we return.

Announcement of Price Adjustment

Announcement of Price Adjustment

Dear Valuable Customers and Partners:

I hope you, your employees, and your families are staying safe and well in these unprecedented times for our economy and the world wide COVID-19 situations.

Hereby we want to extend our sincere gratitude to you for your always support and trust to Renhotec team in the past days.

In the past six months, there were sharp growing of raw material cost, labor cost and logistics cost as well. All these increase directly led to the growing of our product cost Given this situation, we regret to inform you that we w川 have a 10-20% prices increase for some of our products accordingly effective from Feb 1,2021.

It’s a tough decision in this tough time. We hope for your understanding and support like
always. Please do not hesitate to contact us if you have any questions.

Announcement of Price Adjustment


connector price

What is the working principle of the M8 connector?

I believe many people are no strangers to the M8 connector. Let me introduce you in detail today. The M8 connector and cables are two or more containers that communicate with each other below the liquid level. The connector with the same liquid and equal pressure on the liquid surface has the same liquid level.

(1) The M8 connector connection line contains the same liquid, but the pressure on the liquid level is not equal, the pressure difference of the liquid level is equal to the pressure difference caused by the difference in the liquid level between the two containers of the communicating device.

(2) The pressure on the liquid level of the M8 connector cable is equal, but there are different liquids that are not mixed with each other. The height of the two liquid surfaces is inversely proportional to the liquid density from the interface.

The M8 connector cable principle has a wide range of applications in engineering. For example, various liquid level meters (water level gauges, oil level gauges, etc.), mercury vacuum gauges, liquid column air pressure gauges, differential pressure gauges, etc., are all made by applying the principle of the connected device.

By understanding the definition and working principle of the M8 connector and cable, it can help us better understand and develop the connector market.

Advantages of Renhotec Technology M8 Connector:

1. Easy to repair. If an electronic component fails, the failed component can be quickly replaced when the connector is installed;

2. Improve the production process. The connector simplifies the assembly process of electronic products. It also simplifies the mass production process;

3. Easy to upgrade. As technology advances, components can be updated with connectors, replacing old ones with new, more sophisticated components;

4. Improve design flexibility. The use of connectors gives engineers greater flexibility when designing and integrating new products, as well as when building components with components.

Hope the above contents about the M8 connector will help you. Welcome to continue to pay attention to Shenzhen Renhotec Technology Electronics Co., Ltd., consult our engineers sale@renhotec.com,and visit our website www.renhotecpro.com

What are the connection forms of the connector?

There are four main types connections:

1. Threaded connection: Some types of connections are often used for contacts with larger dimensions and connector plugs that operate in a strong vibration environment. This type of connection can be fitted with a fuse that prevents loosening after the connection is completed. The connection form is reliable,but slow to connect and pull.

2. Bayonet connection: it is a reliable and rapid connection and separation form. Most of the electrical connectors of the 121 connection form have a visual display of the correct connection and locking and can be viewed from the small holes on the side of the electrical connector connection nut.

3. Plug and pull connection: is a multi-purpose connection form. When the plug and the socket of the electrical connector are connected and disconnected, the moving direction is usually a reciprocating linear motion, without twisting and rotating, and only a small working space is required to complete the loading and unloading. Common plug-in connections are available in either ball or pin configurations. Since the connection form has no mechanically labor-saving mechanism, once the insertion is mistaken, the mechanical resistance is significantly increased and can be found in time.

4. The cabinet connection: it is used for some electrical connectors on the equipment that need to be blindly connected to the frame, which can make the electrical equipment lighter and smaller, easier to maintain and more reliable. This type of connection makes it impossible for the operator to feel the connection. It is necessary to design an accurate positioning device to avoid forcibly connecting the mis-inserted connector plugs together, making mis-insertion impossible. Connector plugs are usually designed with a floating or resilient contact design to ensure proper connection.

More details please consult our engineer via sale@renhotec.com, or visit our web www.renhotecpro.com .

What factors affect the contact resistance and reliability of the aviation plug PIN?

Contact material, vertical pressure, surface morphology, voltage and current usage can affect the contact resistance of the PIN pin of the aviation plug. Affected by the technical conditions of aviation plugs, the contact resistance indexes of the same type of mating contact parts made of different materials are different. For example, the contact resistance of the mating contact piece with a diameter of 1 mm, the copper alloy should not be greater than 5 mΩ, and the ferroalloy is ≤ 15mΩ.

Vertical pressure refers to the force generated by a surface in contact with each other and perpendicular to the contact surface. The number and area of ​​contact micro-dots will increase with the increase of vertical pressure, and the contact micro-point will also transition from elastic deformation to plastic deformation, thereby reducing the concentrated resistance, and the contact resistance will decrease as the concentrated resistance decreases.

Dust, rosin and oil stains will be deposited on the surface of the joint to form a loose surface. The surface of the film will contain particulate matter, which will carry particulate matter embedded in the microscopic pits on the contact surface, reducing contact. Area, increasing contact resistance, resulting in unstable performance; affected by physical adsorption and chemisorption, the surface of the contact point will deposit a fouling film, increasing contact resistance, resulting in unstable performance. In order to improve the performance and reduce the contact resistance, the aviation plug must have clean production environment conditions in the production and assembly environment, as well as a complete cleaning process and necessary structural sealing measures, and the storage and use operating environment should also be good.

When the voltage reaches a certain threshold, the contact film will be broken down, and the contact resistance will drop rapidly. However, due to the thermal effect, the chemical reaction in the vicinity of the film will accelerate the repair of the film.

For more details, please consult our engineers at sale@renhotec.com and visit our website at www.renhotecpro.com.

How to meet the installation requirements of aviation plugs:

  1. Ordinary sockets should be installed in a dry, dust-free place.
  2. The socket should be installed firmly. Since the socket is always charged, the installation height of the wall-mounted socket is not less than 1.3m from the ground, generally 1.5-1.8m, and the concealed socket allows for low installation, but the height from the ground is not less than 0.3m.
  3. For the aviation plugs in the same place, the installation height should be the same, the height difference should be no more than 5mm, and the sockets installed in rows should not be larger than 2mm.
  4. Socket power cords for high-power household appliances such as air conditioners and electric water heaters should be arranged separately from the power cords of the lamps. The sockets should not be shared with other household appliances. The power cable should be directly led out from the distribution box or bus. The wires used are generally copper core wires with a cross section of not less than 2.5 mm. The air conditioner should be a copper core wire with a section of not less than 4 square meters.
  5. 5.Concealed socket should have a special box, the cover should be straight and close to the wall. Surface mounted aerial plugs are to be mounted on wooden pallets and secured with two wood screws.

Types and advantages and disadvantages of rubber insulators commonly used in aviation plug connectors

The most commonly used Plastic material are PBT, PPT, POM, ABS, and LCP. What are the characteristics of these five kinds of plastic material?

PBT is a thermoplastic and is one of the five most widely used engineering plastics. It has the advantages of good strength, heat resistance, low temperature resistance, chemical resistance, low water absorption, good gloss, good electrical properties and easy processing. It can withstand 230 ° C heat temperature, oxidation resistance and comprehensive performance. The disadvantage is molding shrinkage. Large and notched impact strength is low.

PDM, which belongs to the five general engineering plastics as well as PBT, is the hardest plastic material in thermoplastics. Its mechanical properties are one of the closest metal varieties in plastic materials, with low friction coefficient and good Stability, tensile strength, flexural strength, fatigue strength, abrasion resistance and electrical properties are all excellent, but they are susceptible to strong acid corrosion, poor weatherability and poor adhesion.

ABS is a general-purpose plastic, which has the advantages of good rigidity, good impact strength, heat resistance, low temperature resistance, chemical resistance, chemical stability, and good electrical properties. It can withstand 180 ° C heat temperature and has good flexibility.

PPT has excellent electrical properties, good dimensional stability, low friction coefficient, self-lubricating, low water absorption, chemical resistance, oil resistance, and can withstand 160 ° C hot temperature, if used in the production of aviation plug products. Its high temperature resistance can reach 250 ° C, which is higher than that of POM material. Its mechanical properties are stable tensile strength and tensile modulus are similar to nylon.

LCP is a new type of high performance special engineering plastic with good mechanical properties, electrical insulation, optical properties, electrical properties, chemical resistance, flame retardancy, processability, heat resistance.

More details please contact us via sale@renhotec.com, and our web is www.renhotecpro.com

How to manufacture the aviation plug connectors and control the quality of connector soldering

Most of the switches of good quality aviation plugs are made of advanced materials such as bulletproof rubber. The fire performance, moisture resistance and impact resistance are high, and the surface is smooth. When purchasing, you should consider the feel of your own touch,determine the material of the switch by hand and ask the dealer.

Waterproof Industrial Connectors

In general, products with a surface that is not too smooth and that feels thin and brittle are unreliable. A good switch socket panel requires no air bubbles, no scratches, and no smudging. The touch of the switch is light and not tight, and the socket of the socket needs to be equipped with a protective door. The plug should be inserted and removed with a certain force and cannot be inserted in one foot.

An air plug is a receptacle that has one or more circuit connections that can be plugged in, allowing it to be plugged into various lines for easy connection to other circuits. In our daily life, the power socket is commonly used. The power socket is an electrical device that provides a power interface for household appliances. It is also an electrical accessory used in residential electrical design. It has a close relationship with people’s lives. How to choose a safe power outlet is very important. Low-quality power sockets often cause personal electric shocks and electrical fire accidents, which poses a major hidden danger to personal and property safety. Therefore, the design of the power outlet is also an important basis for evaluating residential electrical design.

In the traditional production process of connectors, the soldering type is a relatively common method. The connector produced by this method is often used in places where the heat is small. This device requires a relatively small current in the part, if the current is too Large, the temperature will exceed the bearing range of the solder joint, so that the solder melts and deforms, the connection is not real or the structure is deformed, which easily causes the circuit to be short-circuited, causing damage to the entire system equipment. Reduced system stability. In addition to the processing methods, the temperature causes the cause of the de-soldering, in the production process, there are some improper handling places that will cause the phenomenon of connector de-soldering.

The most common case is that the soldered connector is not the same weight as the other connector, or the difference is too large. In the welding process, the pins of a welded part will be deformed due to the different degrees of temperature, which will cause the welding between the components to be untrue. This situation is sometimes not found during the test, only to the user. When it is used, because the equipment needs continuous high-load operation, or the equipment is in a harsh environment, the temperature changes drastically, and it runs at full load for a long time under high temperature conditions. This causes the temperature of the solder joint to be too large, and the solder deformation melts. It is easy to cause a short circuit. A more common solution to this problem is to increase the frequency of the reflow soldering fan appropriately and speed up the soldering of the connector, so that the probability of deformation of the connector pins can be reduced. However, when using this method, you must pay attention to the setting of the furnace temperature. Always pay attention to the temperature change of the furnace temperature. Do not let the temperature of the connector rise too fast. The peak value should be adjusted according to the size of the equipment and the size of the stitch. If it is the processing of the pin of the card seat, you can ask the supplier first. At the time of production, the method of cutting and re-plating is used first, or the method of electroplating and cutting first. If it is the former, the effect of tin processing will be good at this time. More. If the latter also has a solution, you can start by adding a tin amount and put a layer of steel plate sticker next to the hole, so that you can ensure that it is not welded or leaked.

For more details, please contact our engineers via sale@renhotec.com or visit our company website at www.renhotecpro.com.

How to design the safety of the aviation plug connector

There are different use of the aviation plug converter, and various situations . Here let Renhotec  introduce you more details:

The aviation plug converter will not cause a key safety indicator for electric shock accidents of users and others under normal use conditions and even unexpected situations. When the plug and the socket are fully or partially inserted, the live part of the plug shall not be accessible; any plug of the plug shall not be able to be inserted into the live socket of the socket when the other pins are in an accessible state. Plugs and sockets with protective doors and converters should prevent insertion of probes.

To ensure adequate contact pressure on the plug pins. The insert sleeve should be corrosion-resistant and wear-resistant to ensure good contact between the plug and the socket; the plug pin should be locked and cannot be rotated, otherwise the insertion performance and unsafe factors will be affected; the converter has a cord fixing device to ensure The cord is fixed and can withstand normal tension and torque; when the plug and socket are inserted, the mating surfaces should be basically tight to prevent electric shock.

An aviation plug is a seat that has one or more circuit connections that can be plugged in, allowing it to be plugged into various wires for easy connection to other circuits. In our daily life, the power socket is commonly used. The power socket is the electrical equipment that provides the power interface for the household appliances. It is also the electrical accessory used in the residential electrical design. It has a very close relationship with people’s lives. How to choose a safe power outlet is very important. Low-quality power sockets often cause personal electric shocks and electrical fire accidents, which poses a major hidden danger to personal and property safety.

Aviation plugs pay special attention to some details while purchasing good quality sockets. For example, when purchasing a household outlet, it is best to choose a functional new socket that prevents children from getting an electric shock. The socket hole preferably has a design to prevent children from inserting small metal objects such as fingers or hairpins. At the same time, parents should pay attention to the problems of household appliances aging, socket aging, etc. If there are bare wires and leakage sockets in the home, they must be replaced immediately, or wrapped with insulating tape. In addition, the socket and terminal block should be placed behind the sofa and table as much as possible.

The poor quality of the aviation plug changer is an important cause of electrical fires. The quality problems of small plugs, sockets and converters will pose serious harm to the personal and property safety of consumers. Therefore, consumers should pay attention to the safety of products when purchasing plugs, sockets, converters and switches.

For more information, please contact Renhotec freely, our web is www.renhotecpro.com

Or you can contact us directly by email : sale@renhotec.com, sara@renhotec.com.