Waterproof, heating-proof, electric shock-proof and arc-proof structure of adapter

Abstract

The utility model relates to the technical field of charging guns, and particularly discloses a waterproof, anti-heating, anti-electric shock and anti-arc structure of a conversion head, which comprises a CCS1 gun head and an NACS interface connected with the CCS1 gun head, a first copper contact pin, a first signal pin and a PCBA circuit board are arranged in the CCS1 gun head, a first button and a second button are arranged on the NACS interface, and a second copper contact pin is arranged on the first button. The inner side of the first button and the inner side of the second button are each provided with a microswitch electrically connected with the PCBA circuit board, a copper bar, a second copper pin and a second signal pin are arranged in the NACS interface, and a waterproof sealing strip is arranged between the CCS1 gun head and the NACS interface. According to the utility model, the first copper pin and the second copper pin are both connected with the copper bar in a pressure riveting manner, the first button and the second button are internally provided with the microswitches, power is cut off before the gun is pulled out, electric arc generation is avoided, the electric arc prevention function is realized, and the electric shock prevention function is realized by arranging the safety door structure at the output end of the CCS1 gun head. The waterproof sealing performance is improved by arranging the waterproof sealing strip, and the waterproof grade is improved.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, and in particular to a waterproof, heat-proof, electric shock-proof, and arc-proof conversion head structure. Background Technology

[0002] With the rapid growth of the new energy vehicle market, the construction of charging infrastructure has become a crucial issue. Especially in highway service areas, most charging stations are DC charging stations, which makes it difficult for vehicles with only one AC charging port to charge. Therefore, it is necessary to develop an AC-to-DC converter so that vehicles can charge at DC charging stations. Furthermore, with the increasing globalization of cities, more and more users need chargers compatible with the electrical standards of different countries and regions. Because international electrical standards are inconsistent, socket specifications often differ from country to country, requiring users to convert chargers to meet different national standards when using portable electronic products in different countries and regions.

[0003] A search revealed that Chinese utility model patent CN202222220017.0 discloses a new energy conversion charging head. A second new energy conversion head is attached to one end of a first new energy conversion head. A left protective shell is located on one side of the second and first new energy conversion heads, and a right protective shell is located on the other side. Left clips are located at both ends of the left protective shell, and right clips are located at both ends of the right protective shell. A first limiting ring is located at one end of the first new energy conversion head, and a second limiting ring is located at one end of the second new energy conversion head. The two left and right clips are engaged with the first and second limiting rings on one side. This utility model combines two charging conversion heads based on different national standards, forming a new device from two interfaces, enabling interface conversion. This allows the same type of vehicle to be charged using different charging guns, bringing greater convenience to users.

[0004] For example, Chinese invention patent application CN202311720934.8 discloses an AC / DC charging adapter for new energy vehicles, including a housing and a clamping cylinder. A cylindrical movable block is disposed inside the housing, and an input electrode for docking with a charging gun is disposed at the rear end of the movable block. A spring is disposed inside the housing between a support block and the movable block. The clamping cylinder has a hollow structure, forming an annular movable cavity between its inner and outer sides. The inner side of the clamping cylinder is made of a rigid material, while its outer side is made of an elastic material. Multiple sets of elongated clamping strips are evenly distributed along the circumference of the front end of the movable block. The front ends of the clamping strips extend into the movable cavity and can move back and forth within the cavity. This adapter can significantly reduce the resistance when docking and disconnecting the adapter from the charging socket, saving effort and improving the user experience.

[0005] While the existing charging adapters can meet basic usage requirements, they still have the following drawbacks: 1. Copper pins are fixed to copper busbars with threads; 2. They lack arc protection and electric shock protection functions; 3. Their waterproof sealing is insufficient. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a waterproof, heat-proof, electric shock-proof, and arc-proof conversion head structure to address the above-mentioned defects of the prior art. This structure is achieved by riveting the first and second copper pins to the copper busbar, and by setting microswitches in the first and second buttons to cut off the power before the gun is pulled out, thus preventing the generation of electric arcs. The structure also provides electric shock protection by setting a safety door at the output end of the CCS1 gun head, and by setting a waterproof sealing strip to increase waterproof sealing and improve the waterproof rating.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A waterproof, heat-proof, electric shock-proof, and arc-proof adapter structure includes a CCS1 nozzle and a NACS interface connected to the CCS1 nozzle. The CCS1 nozzle contains a first copper pin, a first signal pin, and a PCBA circuit board. The NACS interface has a first button and a second button. The inner side of both the first and second buttons has a micro switch electrically connected to the PCBA circuit board. The NACS interface contains a copper busbar, a second copper pin, and a second signal pin. The first and second copper pins are both riveted to the copper busbar. A waterproof sealing strip is provided between the CCS1 nozzle and the NACS interface.

[0009] Preferably, the outer side of the copper busbar is covered with a copper busbar insulating protective sleeve, and the outer side of both the first copper pin and the second copper pin is covered with a DC high voltage needle insulating protective sleeve.

[0010] Preferably, both the first copper pin and the second copper pin are connected to a copper pin positioning block, and both the first signal pin and the second signal pin are connected to a signal pin positioning block.

[0011] Preferably, a sealing strip mounting groove is provided on the outer side of the CCS1 nozzle, and the waterproof sealing strip is fitted onto the sealing strip mounting groove.

[0012] Preferably, a reset spring is provided on the inner side of both the first button and the second button, and the reset spring abuts against the outer side of the NACS interface.

[0013] Preferably, the first button is provided with a first buckle, and the second button is provided with a second buckle.

[0014] Preferably, the output end of the CCS1 gun head is provided with a plurality of charging posts, and each charging post is equipped with the safety door structure.

[0015] Preferably, the safety door structure includes a first safety door and a second safety door arranged symmetrically to each other, and springs are installed on both the first safety door and the second safety door, with the ends of the springs abutting against the charging post.

[0016] By adopting the above technical solution, the present invention provides a waterproof, heat-resistant, electric shock-resistant, and arc-resistant adapter structure with the following beneficial effects: The CCS1 gun head of the adapter structure is equipped with a first copper pin, a first signal pin, and a PCBA circuit board. The NACS interface is equipped with a first button and a second button. The inner sides of both the first and second buttons are equipped with microswitches electrically connected to the PCBA circuit board. The NACS interface is equipped with a copper busbar, a second copper pin, and a second signal pin. The first copper pin and... The second copper pin is riveted to the copper busbar. A waterproof sealing strip is provided between the CCS1 nozzle and the NACS interface. By riveting both the first and second copper pins to the copper busbar, the connection stability of the copper pins is improved. The cross-sectional area of ​​the copper busbar is increased, which accelerates heat dissipation. By setting microswitches in the first and second buttons, the power is cut off before the nozzle is pulled out to avoid the generation of electric arc, thus achieving the anti-arc function. The safety door structure is set at the output end of the CCS1 nozzle to achieve the anti-electric shock function. The waterproof sealing strip is set to increase the waterproof sealing performance and improve the waterproof rating. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is a perspective view of the present utility model;

[0019] Figure 3 This is an exploded view of the present invention from another angle;

[0020] Figure 4 This is a perspective view of the present invention from another angle;

[0021] Figure 5 This is a longitudinal sectional view of the present invention;

[0022] Figure 6 This is a schematic diagram showing the connection between the charging column and the safety door structure in this utility model;

[0023] In the diagram, 1-CCS1 nozzle, 2-NACS interface, 3-first copper pin, 4-first signal pin, 5-PCBA circuit board, 6-first button, 7-second button, 8-micro switch, 9-copper busbar, 10-second copper pin, 11-second signal pin, 12-waterproof sealing strip, 13-copper busbar insulating protective sleeve, 14-DC high voltage needle insulating protective sleeve, 15-copper pin positioning block, 16-signal pin positioning block, 17-sealing strip mounting groove, 18-reset spring, 19-first buckle, 20-second buckle, 21-first safety door, 22-second safety door, 23-spring, 24-charging column. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] like Figure 1-5 As shown, the adapter's waterproof, heat-resistant, electric shock-resistant, and arc-resistant structure includes a CCS1 nozzle 1 and a NACS interface 2 connected to the CCS1 nozzle 1. The CCS1 nozzle 1 contains a first copper pin 3, a first signal pin 4, and a PCBA circuit board 5. The NACS interface 2 has a first button 6 and a second button 7. Both the first button 6 and the second button 7 have microswitches 8 electrically connected to the PCBA circuit board 5 on their inner sides. The NACS interface 2 contains a copper busbar 9, a second copper pin 10, and a second signal pin 11. The first copper pin 3 and the second copper pin 10 are both riveted to the copper busbar 9. A waterproof sealing strip is provided between the CCS1 nozzle 1 and the NACS interface. It can be understood that the end of the NACS interface 2 is fitted onto the end of the CCS1 nozzle 1 and is interlocked and fixed to the CCS1 nozzle 1. The CCS1 nozzle 1 is a standard American standard nozzle, and the NACS interface 2 is a standard American standard interface.

[0028] Specifically, the outer side of the copper busbar 9 is fitted with a copper busbar insulating protective sleeve 13, the outer side of the first copper pin 3 and the second copper pin 10 are both fitted with DC high voltage needle insulating protective sleeves 14, the first copper pin 3 and the second copper pin 10 are both connected to copper pin positioning blocks 15, and the first signal pin 4 and the second signal pin 11 are both connected to signal pin positioning blocks 16; the outer side of the CCS1 gun head 1 is provided with a sealing strip mounting groove 17, and the waterproof sealing strip 12 is fitted on the sealing strip mounting groove 17; the inner side of the first button 6 and the second button 7 are both provided with a return spring 18, the return spring 18 abuts against the outer side of the NACS interface 2, the first button 6 is provided with a first buckle 19, which is used to lock the charging interface at the vehicle end during charging, and the second button 7 is provided with a second buckle 20, which is used to lock the charging head at the charging pile end during charging.

[0029] Specifically, the output end of the CCS1 gun head 1 is provided with several charging posts 24, each of which is equipped with a safety door structure. The safety door structure includes a first safety door 21 and a second safety door 22 arranged symmetrically. Each of the first and second safety doors 21 and 22 is equipped with a spring 23, the end of which abuts against the charging post 24. Understandably, when the car charging interface is inserted, the outer ends of the first and second safety doors 21 and 22 are pushed backward by the force of the car charging interface, causing them to rotate 90 degrees. This allows the connector inside the car charging interface to pass through the charging through-hole on the charging post 24 and make contact with the connector inside the charging post 24, thus enabling power connection. After the car charging interface is removed, the first and second safety doors 21 and 22 can rotate back 90 degrees under the rebound action of the spring 23, thus returning to their original positions and preventing contact with the connector when not in use, thereby preventing electric shock.

[0030] Understandably, this utility model has a reasonable design and unique structure. By riveting the first copper pin 3 and the second copper pin 10 to the copper busbar 9, and fixing the copper pins with a riveting structure, the connection stability of the copper pins is improved. The cross-sectional area of ​​the copper busbar is increased, which accelerates heat dissipation and makes the temperature controllable. By setting microswitches 8 in the first button 6 and the second button 7, the power is cut off before the gun is pulled out to avoid the generation of electric arc and achieve the anti-arc function. By setting a safety door structure at the output end of the CCS1 gun head, the anti-electric shock function is achieved. By setting a waterproof sealing strip 12, the waterproof sealing performance is increased and the waterproof level is improved.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A conversion head waterproof, anti-heating, anti-electric shock and anti-arc structure, characterized in that: The CCS1 gun head and the NACS interface connected with the CCS1 gun head are included, a first copper pin, a first signal pin and a PCBA circuit board are arranged in the CCS1 gun head, a first button and a second button are arranged on the NACS interface, a micro switch electrically connected with the PCBA circuit board is arranged on the inner side of the first button and the second button, a copper bar, a second copper pin and a second signal pin are arranged in the NACS interface, the first copper pin and the second copper pin are press riveted with the copper bar, a waterproof sealing strip is arranged between the CCS1 gun head and the NACS interface, and a safety door structure is arranged on the output end of the CCS1 gun head.

2. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: The outer side of the copper bar is sleeved with a copper bar insulation protection sleeve, and the outer sides of the first copper pin and the second copper pin are sleeved with direct current strong electric needle insulation protection sleeves.

3. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: The first copper pin and the second copper pin are connected with copper pin positioning blocks, and the first signal pin and the second signal pin are connected with signal pin positioning blocks.

4. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: A sealing strip mounting groove is formed on the outer side of the CCS1 gun head, and the waterproof sealing strip is sleeved on the sealing strip mounting groove.

5. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: Reset springs are arranged on the inner sides of the first button and the second button, and the reset springs abut against the outer side of the NACS interface.

6. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: A first buckle is arranged on the first button, and a second buckle is arranged on the second button.

7. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 1, characterized in that: A plurality of charging columns are arranged on the output end of the CCS1 gun head, and the safety door structure is arranged on the charging column.

8. The conversion head water-proof, heat-proof, electric shock-proof, and electric arc-proof structure according to claim 7, characterized in that: The safety door structure includes a first safety door and a second safety door which are symmetrically arranged, springs are arranged on the first safety door and the second safety door, and the end portions of the springs abut against the charging column.

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