Integrated signal terminal of national standard direct current charging seat

Abstract

The utility model discloses an integrated signal terminal of a national standard direct current charging seat. The adopted technical scheme comprises a substrate, the two ends of which are provided with a group of blind holes for signal terminals to insert, and the middle part of which is provided with a first through hole for DC terminals to insert; the reed is integrally embedded in the substrate through injection molding, the upper end and the lower end of the reed are provided with first jack terminals arranged in the blind holes, and the upper end of the reed is provided with a row of wiring pins extending out of the bottom of the substrate and a temperature sensor clamping groove; the blind holes and the temperature sensor clamping grooves are respectively conducted with the corresponding wiring pins through circuits which are integrally formed with the blind holes and the temperature sensor clamping grooves; and the lower end of the signal terminal is inserted into the blind hole of the substrate, and the bottom of the signal terminal is provided with a group of circumferentially arranged elastic contact pieces.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicles, and in particular relates to a signal terminal structure for a national standard DC charging socket. Background Technology

[0002] The national standard DC charging socket refers to a DC charging interface that conforms to Chinese national standards and is mainly used for DC charging of electric vehicles. Currently, charging sockets both domestically and internationally are mainly divided into AC and DC systems. However, existing products have complex wiring harness assembly processes, cumbersome assembly procedures, and are difficult to maintain and operate after-sales, increasing equipment complexity and cost, and failing to meet the integration requirements of compact charging piles. Therefore, this design adopts an integrated and quick-connect design, which is the current development trend. This reduces processes, facilitates automatic wiring harness assembly, improves production efficiency, and provides convenience for subsequent maintenance and after-sales service, while also facilitating replacement. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated signal terminal for a national standard DC charging base.

[0004] To solve the above problems, the technical solution adopted by this utility model includes:

[0005] The substrate has a set of blind holes at both ends for signal terminals to be inserted, and a first through hole in the middle for DC terminals to be inserted.

[0006] A spring sheet, an integral insert, is injection molded into the substrate. Its upper and lower ends are provided with first insertion terminals placed in the blind holes, and the upper end is provided with a row of wiring pins extending from the bottom of the substrate and a temperature sensor slot. The blind holes and the temperature sensor slot are respectively connected to the corresponding wiring pins through integrally formed lines.

[0007] The signal terminal is inserted into the blind hole of the substrate at its lower end and has a set of circumferentially arranged elastic contacts at its bottom. The elastic contacts contact the inner wall of the first socket terminal.

[0008] A temperature sensor assembly includes a thermally conductive silicone sleeve communicating with the substrate and a temperature sensor placed inside the thermally conductive silicone sleeve. The temperature sensor has a wiring pin that engages with the temperature sensor snap-fit ​​groove. One end face of the thermally conductive silicone sleeve extends into the first through hole.

[0009] The lower end of the spring is provided with a clamping arm that extends out of the substrate, and a pair of resistor slots are provided next to the clamping arm. A resistor is connected through the resistor slots, and the first PE terminal is connected through the clamping arm.

[0010] The lower end of the substrate is provided with a second through hole for inserting the second PE terminal, the lower end of the spring is provided with a second insertion terminal placed in the second through hole, a pair of resistor slots are provided next to the second insertion terminal, a resistor is connected through the resistor slots, the second PE terminal is connected through the second insertion terminal, and the lower end of the PE terminal is provided with a cage-like expansion part that contacts the inner wall of the second insertion terminal.

[0011] The thermally conductive silicone sleeve has buckles on both sides of the bottom and a positioning post in the middle of the bottom.

[0012] The temperature sensor slot is provided on the U-shaped connecting part of the spring, and the bottom of the U-shaped connecting part is provided with a fixing foot.

[0013] The substrate has a first mounting hole around its perimeter, and the circuit has a second mounting hole placed within the first mounting hole.

[0014] The advantages of the integrated signal terminal of this national standard DC charging socket are as follows:

[0015] 1. An integrated design is adopted, eliminating terminal leads and changing the wire connection to contact between the terminal end and the spring, avoiding messy leads, facilitating assembly, reducing processes, and facilitating automatic assembly of wire harnesses, thereby improving production efficiency;

[0016] 2. Replacing the expensive integrated circuit printed circuit board with a spring switch saves production and manufacturing costs while meeting the requirements of integration and convenience;

[0017] 3. The signal terminals adopt a quick-connect design, which facilitates after-sales maintenance and is easy to replace;

[0018] 4. The components (temperature sensor, resistor) are integrated and modularized, which facilitates assembly and improves production efficiency.

[0019] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the integrated signal terminal of the national standard DC charging base according to the present invention.

[0021] Figure 2 This is a rear view of the integrated signal terminal of the national standard DC charging base according to the present utility model.

[0022] Figure 3 This is an exploded view of the integrated signal terminal of the national standard DC charging base according to the present utility model.

[0023] Figure 4 This is a schematic diagram of the structure of a reed in the national standard of this utility model;

[0024] Figure 5 This is an exploded view of the integrated signal terminal of the national standard DC charging base according to the second embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the spring in Chinese solution two of this utility model. Detailed Implementation

[0026] Reference Figures 1-6 As shown, the national standard DC charging socket integrated signal terminal of this utility model includes: a substrate 1, a spring 2, a signal terminal 3, and a temperature sensor assembly 4. The substrate 1 has a set of blind holes 5 at both ends for inserting the signal terminal, and a first through hole 6 in the middle for inserting the DC terminal. The spring 2 is integrally injection molded into the substrate 1. The upper and lower ends of the spring 2 have first insertion terminals 7 placed within the blind holes 5. The upper end of the spring 2 has a row of wiring pins 8 extending from the bottom of the substrate 1 and a temperature sensor mounting slot 9. The row of wiring pins 8 can be used to connect with connector plugs on a wire harness. The first insertion terminal 7 and the temperature sensor mounting slot 9 are respectively connected to the corresponding wiring pins 8 through integrally formed lines 10. The lower end of the signal terminal 3 is inserted into the blind hole 5 of the substrate 1, and the bottom of the signal terminal 3 has a set of circumferentially arranged elastic contacts 11. The elastic contacts 11 contact the inner wall of the first insertion terminal 7 to achieve circuit continuity. The temperature sensor assembly 4 includes a thermally conductive silicone sleeve 12 communicating with the substrate 1 and a temperature sensor 13 placed inside the thermally conductive silicone sleeve 12. The temperature sensor 13 has a connector pin 14 that engages with the temperature sensor mounting slot 9. One end face of the thermally conductive silicone sleeve 12 extends into the first through hole 6. When the DC terminal is inserted into the first through hole 6, the end face of the thermally conductive silicone sleeve 12 contacts the outer wall of the CD terminal to conduct heat to the temperature sensor 13.

[0027] Preferably, the lower end of the spring 2 is provided with a clamping arm 15 extending out of the substrate 1, and a pair of resistor slots 16 are provided next to the clamping arm 15. A resistor 17 is connected through the resistor slots 16, and a first PE terminal 18 is connected through the clamping arm 15. This structure enables rapid assembly of the resistor 17 and the PE terminal 18. The resistor 17 and the PE terminal 18 function the same as in a conventional charging dock, serving as ground wire protection to ensure safety during charging.

[0028] Preferably, the lower end of the substrate 1 is provided with a second through hole 19 for inserting the second PE terminal 31, and the lower end of the spring 2 is provided with a second insertion terminal 20 placed in the second through hole 19. A pair of resistor slots 16 are provided beside the second insertion terminal 20, through which a resistor 17 is connected, and through the second insertion terminal 20, the second PE terminal 31 is connected. The lower end of the PE terminal 18 is provided with a cage-like expansion portion 21 that contacts the inner wall of the second insertion terminal 20. This structure enables rapid assembly of the resistor 17 and the PE terminal 18. Furthermore, the PE terminal 18 is fixed to the second insertion terminal 20 using the cage-like expansion portion 21, which provides greater stability compared to fixing it with the clamping arm 15.

[0029] Preferably, the thermally conductive silicone sleeve 12 has buckles 22 on both sides of its bottom and a positioning post 23 in the middle of its bottom. This allows for quick and stable assembly of the thermally conductive silicone sleeve 12.

[0030] Preferably, the temperature sensor mounting slot 9 is disposed on the U-shaped connecting portion 24 of the spring 2, and the bottom of the U-shaped connecting portion 24 is provided with a fixing foot 25. The fixing foot 25 at the bottom of the U-shaped connecting portion 24 is integrally formed in the substrate 1 to improve the connection strength.

[0031] Preferably, the substrate 1 has first mounting holes 30 around its perimeter, and the circuit 10 has second mounting holes 35 located within the first mounting holes 30. Screws are inserted into the first mounting holes 30 and the second mounting holes 35 to secure the circuit to the charging housing, thereby improving the connection strength.

[0032] As stated above, this is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A national standard DC charging socket integrated signal terminal, characterized in that, include: The substrate (1) has a set of blind holes (5) at both ends for signal terminals to be inserted, and a first through hole (6) in the middle for DC terminals to be inserted. The spring (2) is integrally injection molded into the substrate (1). The upper and lower ends are provided with first insertion terminal (7) placed in the blind hole (5), and the upper end is provided with a row of wiring pins (8) extending from the bottom of the substrate (1) and a temperature sensor slot (9). The blind hole (5) and the temperature sensor slot (9) are respectively connected to the corresponding wiring pins (8) through the integrally formed line (10). The signal terminal (3) is inserted into the blind hole (5) of the substrate (1) at its lower end and has a set of circumferentially arranged elastic contact pieces (11) at its bottom. The elastic contact pieces (11) contact the inner wall of the first socket terminal (7). The temperature sensor assembly (4) includes a thermally conductive silicone sleeve (12) communicating with the substrate (1) and a temperature sensor (13) placed inside the thermally conductive silicone sleeve (12). The temperature sensor (13) is provided with a wiring pin (14) that engages with the temperature sensor snap-fit ​​groove (9). One end face of the thermally conductive silicone sleeve (12) extends into the first through hole (6).

2. The integrated signal terminal of the national standard DC charging socket according to claim 1, characterized in that: The lower end of the spring (2) is provided with a clamping arm (15) extending out of the substrate (1), and a pair of resistor slots (16) are provided next to the clamping arm (15). A resistor (17) is connected through the resistor slots (16), and a first PE terminal (18) is connected through the clamping arm (15).

3. The integrated signal terminal of the national standard DC charging socket according to claim 1, characterized in that: The substrate (1) has a second through hole (19) at its lower end for inserting the second PE terminal (31). The spring (2) has a second socket terminal (20) at its lower end placed in the second through hole (19). A pair of resistor slots (16) are provided next to the second socket terminal (20). A resistor (17) is connected through the resistor slots (16). The second PE terminal (31) is connected through the second socket terminal (20). The lower end of the PE terminal (18) has a cage-like expansion part (21) that contacts the inner wall of the second socket terminal (20).

4. The integrated signal terminal of the national standard DC charging socket according to claim 1, characterized in that: The thermally conductive silicone sleeve (12) has buckles (22) on both sides of the bottom and a positioning post (23) in the middle of the bottom.

5. The integrated signal terminal of the national standard DC charging socket according to claim 1, characterized in that: The temperature sensor slot (9) is provided on the U-shaped connecting part (24) of the spring (2), and the bottom of the U-shaped connecting part (24) is provided with a fixing foot (25).

6. The integrated signal terminal of the national standard DC charging socket according to claim 1, characterized in that: The substrate (1) has a first mounting hole (30) around its perimeter, and the circuit (10) has a second mounting hole (35) placed inside the first mounting hole (30).

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