A 4-pin connector for a charging pile module

Abstract

The utility model provides a kind of 4PIN connector for charging pile module, comprising: front cover, front cover upper end is nested with back cover.The kind of 4PIN connector for charging pile module, by being provided with front cover, front cover terminal seat, crown spring, back cover, back cover terminal seat and positioning claw etc. structure, the nesting cooperation of front cover and back cover realizes overall structure firm, the combination of front cover terminal seat and crown spring ensures that connection terminal is not easy to fall off after embedding, and guarantee current transmission stability;Back cover terminal seat plays the protection limiting effect to connection terminal, cooperate with the design of through-hole, baffle and barrier cavity, effectively avoid terminal contact interference;Positioning claw is through accurate positioning and mistake-proof function, prevent docking misplacement or insert reverse, reduce circuit fault risk, these structures synergistic effect, significantly improve the installation convenience of connector, connection reliability and use safety, adapt to the work demand of charging pile module.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a 4PIN connector for a charging pile module. Background Technology

[0002] A connector, also known as an electrical connector, is an electronic component used to connect or disconnect electrical circuits. It is widely used in various electrical equipment and systems and is a key interface component to ensure circuit continuity, signal transmission, or energy transfer. Its working principle is essentially to make two or more independent electrical circuits conduct through "plugging and unplugging" or "fixed connection" to achieve efficient transmission of current and signals. When it is necessary to disconnect, the circuit can be quickly cut off by separating the mating part of the connector without damaging the original circuit structure. In charging pile modules, connectors can quickly connect power cables to the internal circuits of the module and can be repeatedly plugged and unplugged, which is convenient for later maintenance and replacement.

[0003] However, existing connectors have the following problems when in use:

[0004] Most connectors lack efficient internal separation structures or employ only a simple isolation method, leading to contact interference between adjacent connection terminals. This not only affects the stability of current transmission but may also cause safety hazards such as short circuits, making it difficult to meet the high electrical insulation requirements of charging pile modules. Secondly, some connectors rely solely on simple insertion to mate the connection terminals with the terminal blocks. Under prolonged use or when subjected to slight external vibrations or pulling, the connection terminals are prone to loosening or even falling off, causing circuit interruptions and affecting the normal operation of the charging pile module.

[0005] This invention can prevent terminal contact interference and connection detachment through multi-structure collaboration, avoid circuit failures caused by misalignment or reverse insertion, improve installation convenience and safety, and ensure efficient current transmission. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide a 4PIN connector for charging pile modules.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a 4PIN connector for a charging pile module, comprising: a front cover, a rear cover nested at the upper end of the front cover, four front cover terminal blocks fixedly installed at the upper end of the front cover, the front cover terminal blocks being hollow inside, and a crown spring fixedly installed at the top inside, a rear cover terminal block snapped onto the upper end of the rear cover, a connecting terminal embedded at the upper end of the rear cover, the bottom of the connecting terminal being embedded inside the front cover terminal block, and the bottom of the connecting terminal being snapped onto the crown spring.

[0008] A further preferred embodiment: positioning holes are provided on both the left and right sides of the upper end of the front cover, and connection holes are provided on the bottom of the front cover terminal block, the connection holes being connected to an external power cable.

[0009] A further preferred embodiment: The upper end of the back cover has four through holes, and a partition is fixedly installed between each of the through holes.

[0010] A further preferred embodiment: the front of the rear cover terminal block has four through holes, and a barrier cavity is formed between each of the through holes.

[0011] A further preferred embodiment: the connecting terminal is arranged in an inverted L shape, with its long side passing through a through hole and accommodated inside the rear cover, and a partition separating the connecting terminal.

[0012] A further preferred embodiment: the front side of the connecting terminal is connected to the rear cover terminal block, and the short side of the connecting terminal is accommodated inside the rear cover terminal block, and the barrier cavity separates the connecting terminal.

[0013] A further preferred embodiment: positioning claws are fixedly connected to both the left and right sides of the front of the back cover.

[0014] Beneficial effects:

[0015] 1. By incorporating a crown spring, when the bottom of the connecting terminal is embedded in the front cover terminal block, the crown spring engages with it. On the one hand, this stably restricts the connecting terminal, preventing it from being easily pulled out and ensuring the connection's firmness. On the other hand, the structural characteristics of the crown spring improve the stability and reliability of conductivity, reduce contact resistance, and ensure efficient current transmission, thereby ensuring the stable operation of the charging pile module. It also enhances the durability of the connector, enabling it to maintain good electrical performance even under frequent plugging and unplugging or long-term use, providing strong support for the reliable operation of the charging pile.

[0016] 2. By incorporating through-hole one, a partition, through-hole two, and an isolation cavity, multiple layers of protection are provided for the connecting terminals. Through-hole one, together with the partition, separates the long side of the connecting terminals into independent cavities, preventing interference between their bottoms. Through-hole two and the isolation cavity isolate the short side of the connecting terminals, ensuring that the upper part of each terminal is also in an independent space. This dual-separation structure effectively prevents contact interference between connecting terminals, ensures electrical insulation between terminals, improves the stability of signal or current transmission, reduces the risk of short circuits and other faults caused by terminal contact, and enhances the overall safety and reliability of the connector.

[0017] 3. By incorporating positioning claws, the connector can play a precise positioning role during the docking process, ensuring accurate alignment of the rear cover, front cover, and related components. This avoids connection issues caused by misalignment during installation. At the same time, its error-proof function can effectively prevent the connector from being inserted backwards, avoiding circuit failures caused by reverse docking from the source and reducing the risk of component damage. This design not only improves installation efficiency and ensures connection accuracy but also enhances the reliability and safety of the connector during use, providing a fundamental guarantee for the stable operation of the charging pile module.

[0018] 4. In summary, this type of charging pile module uses a 4PIN connector, which, through the design of a front cover, front cover terminal block, crown spring, rear cover, rear cover terminal block, and positioning claws, achieves overall structural stability through the nested fit of the front and rear covers. The combination of the front cover terminal block and crown spring ensures that the connection terminal is not easily dislodged after insertion and guarantees stable current transmission. The rear cover terminal block protects and limits the connection terminal, and, together with the design of through holes, partitions, and isolation cavities, effectively avoids contact interference between terminals. The positioning claws, through precise positioning and error prevention functions, prevent misalignment or reverse insertion, reducing the risk of circuit failure. These structures work together to significantly improve the connector's ease of installation, connection reliability, and safety of use, adapting to the working requirements of the charging pile module. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the back cover of this utility model.

[0021] Figure 3 This is a schematic diagram of the front cover terminal block structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the bottom structure of the back cover of this utility model.

[0023] Figure 5 This is a schematic diagram of the internal structure of the rear cover terminal block of this utility model.

[0024] Figure 1-5 In the middle: 1. Front cover; 101. Front cover terminal block; 102. Connecting hole; 103. Crown spring; 104. Positioning hole; 2. Rear cover; 201. Rear cover terminal block; 202. Through hole one; 203. Partition plate; 204. Through hole two; 205. Barrier cavity; 206. Connecting terminal; 207. Positioning claw. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0026] Please see Figure 1-5 In this embodiment of the present invention, a 4-pin connector for a charging pile module includes: a front cover 1, a rear cover 2 nested on the upper end of the front cover 1, four front cover terminal blocks 101 fixedly installed on the upper end of the front cover 1, the interior of the front cover terminal blocks 101 being hollow, and a crown spring 103 fixedly installed on the top of the interior; a rear cover terminal block 201 snapped onto the upper end of the rear cover 2, a connecting terminal 206 embedded in the upper end of the rear cover 2, the bottom of the connecting terminal 206 being embedded inside the front cover terminal block 101, and the bottom of the connecting terminal 206 snapping into the crown spring 103; positioning holes 104 are provided on both the left and right sides of the upper end of the front cover 1, and connecting holes 102 are provided on the bottom of the front cover terminal blocks 101, the connecting holes 102 being connected to an external power cable; firstly, the connecting terminal 206 is embedded into the upper end of the rear cover 2. Then, push the rear cover terminal block 201 into the rear cover 2 from the front to protect and limit the connection terminal 206, and expose part of the front of the connection terminal 206. Next, pass the external cable through the connection hole 102 at the bottom of the front cover terminal block 101 and connect it to the connection terminal 206 to realize the connection between the external power cable and the connection terminal 206. Then, move the entire assembly formed by the rear cover 2 and the rear cover terminal block 201 downward so that the bottom of the connection terminal 206 is embedded inside the front cover terminal block 101, and the rear cover 2 is nested on the upper end of the front cover 1. At this time, the bottom of the connection terminal 206 is engaged with the crown spring 103 inside the front cover terminal block 101, and the crown spring 103 restricts the connection terminal 206 from being pulled out. The positioning hole 104 is used for screw positioning to realize the overall installation and fixation of the 4PIN connector.

[0027] In this embodiment of the present invention, four through holes 202 are provided on the upper end of the rear cover 2, and four through holes 204 are provided on the front of the rear cover terminal base 201. A partition 203 is fixedly installed between each of the through holes 202, and a barrier cavity 205 is provided between each of the through holes 204. The connecting terminal 206 is arranged in an inverted L-shape, with its long side passing through the through hole 202 and housed inside the rear cover 2. The partition 203 separates the connecting terminal 206. The front of the connecting terminal 206 is connected to the rear cover terminal base 201, and its short side is housed inside the rear cover terminal base 201. The barrier cavity 205 separates the connecting terminal 206. When the connecting terminals 206 are embedded inside the back cover 2, each terminal is embedded in the corresponding through hole 202, and the partition 203 separates the bottom space of each through hole 202 to form an independent cavity, so that the bottom of the connecting terminals 206 do not interfere with each other. The back cover terminal seat 201 aligns the through hole 204 with the connecting terminal 206, and then pushes the back cover terminal seat 201 into the back cover 2. A barrier cavity 205 is provided between the through holes 204 to separate the connecting terminals 206 from each other, so that the upper part of each connecting terminal 206 is in an independent cavity, effectively avoiding contact interference between the connecting terminals 206.

[0028] In this embodiment of the utility model, positioning claws 207 are fixedly connected to both the left and right sides of the front of the back cover 2. They mainly play the role of positioning and error prevention. In addition to assisting in the accurate docking of the connector, they can also effectively prevent circuit failures caused by reverse insertion or misalignment, and further ensure the reliability and safety of the connection.

Claims

1. A 4-pin connector for a charging pile module, comprising: A front cover (1) is nested with a rear cover (2) at its upper end. The front cover (1) is characterized in that: four front cover terminal blocks (101) are fixedly installed at the upper end of the front cover (1), the front cover terminal blocks (101) are hollow inside, and a crown spring (103) is fixedly installed at the top inside. A rear cover terminal block (201) is snapped onto the upper end of the rear cover (2), and a connecting terminal (206) is embedded in the upper end of the rear cover (2). The bottom of the connecting terminal (206) is embedded inside the front cover terminal block (101), and the bottom of the connecting terminal (206) is snapped onto the crown spring (103).

2. The 4-pin connector for a charging pile module according to claim 1, characterized in that: The front cover (1) has positioning holes (104) on both the left and right sides of the upper end, and the front cover terminal block (101) has connection holes (102) at the bottom. The connection holes (102) are connected to the external power cable.

3. The 4-pin connector for a charging pile module according to claim 1, characterized in that: The upper end of the rear cover (2) is provided with four through holes (202), and a partition (203) is fixedly installed between each of the through holes (202).

4. A 4-pin connector for a charging pile module according to claim 3, characterized in that: The rear cover terminal block (201) has four through holes (204) on its front side, and a barrier cavity (205) is provided between each of the through holes (204).

5. A 4-pin connector for a charging pile module according to claim 4, characterized in that: The connecting terminal (206) is arranged in an inverted L shape, with its long side passing through the through hole (202) and housed inside the rear cover (2), and the partition (203) separates the connecting terminal (206).

6. A 4-pin connector for a charging pile module according to claim 5, characterized in that: The front of the connecting terminal (206) is connected to the rear cover terminal block (201), and the short side of the connecting terminal (206) is housed inside the rear cover terminal block (201), and the barrier cavity (205) separates the connecting terminal (206).

7. A 4-pin connector for a charging pile module according to claim 1, characterized in that: The rear cover (2) has positioning claws (207) fixedly connected to both the left and right sides of the front.

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