Reed-replaceable terminal and charging socket

Abstract

The utility model discloses a reed-replaceable terminal and a charging socket. The reed-replaceable terminal comprises a terminal main body, a wave-shaped spring, and a terminal-replaceable assembly composed of a locking sleeve, a reed and an end cap. A plurality of reed limiting strips are arranged outside the upper end of the reed at intervals, and notches matched with the reed limiting strips are formed in the end cap; the locking sleeve is sleeved outside the reed through the lower end of the reed and is limited through the reed limiting strip; the end cap is sleeved outside the reed limiting strip of the reed through the upper end of the reed so as to realize the installation of the terminal replaceable assembly; a blind hole mounting cavity is formed in the terminal main body, an internal thread is formed at the opening part of the blind hole mounting cavity, and an external thread connected with the internal thread at the opening part of the blind hole mounting cavity is formed outside the locking sleeve; the wave spring is located between the terminal main body and the replaceable assembly, provides an upward axial force for the replaceable assembly, and prevents the threads of the replaceable assembly from loosening. According to the utility model, the replacement difficulty when the reed of the traditional charging socket is damaged can be avoided, thereby reducing the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of charging sockets for new energy vehicles, specifically, it is a replaceable spring terminal and a charging socket. Background Technology

[0002] Electric vehicle charging sockets primarily rely on the elastic contact between their terminal springs and the charging gun for current transmission. Due to frequent plugging and unplugging, these terminal springs are easily damaged. Damage to the springs in conventional charging sockets necessitates the complete removal and replacement of the socket wiring harness, which is difficult and costly to maintain.

[0003] Furthermore, in existing replaceable terminal technologies, the double-spring terminal structure is prone to wear on the terminal body that contacts the spring, making it impossible to replace the terminal body. Additionally, this design introduces an extra spring contact, resulting in higher contact resistance than conventional sockets and increased current transmission loss.

[0004] Therefore, there is an urgent need for a structure that allows the terminal body to be quickly replaced along with the terminal. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a replaceable spring terminal and a charging socket, so that the charging socket can easily replace the easily damaged spring part without introducing additional new contact pairs, thereby reducing current transmission loss.

[0006] The present invention solves the above problems through the following technical solution:

[0007] A replaceable spring terminal includes: a terminal body and a replaceable terminal assembly consisting of a locking sleeve, a spring, and an end cap; a plurality of spring limiting strips are spaced apart on the upper end of the spring, and a groove is formed inside the end cap to mate with the plurality of spring limiting strips; the locking sleeve is sleeved on the lower end of the spring and is limited by the spring limiting strips; the end cap is sleeved on the upper end of the spring and the spring limiting strips of the spring to realize the installation of the replaceable terminal assembly; a blind hole mounting cavity is formed inside the terminal body, an internal thread is formed at the opening of the blind hole mounting cavity, and an external thread is formed on the outside of the locking sleeve to connect with the internal thread at the opening of the blind hole mounting cavity.

[0008] As a further improvement, the spring is externally interference-fitted and fixed to the locking sleeve and end cap.

[0009] As a further improvement, the locking sleeve has an external thread formed on the end furthest from the end cap.

[0010] As a further improvement, the replaceable spring terminal also includes: a wave spring; the wave spring is disposed inside the internal thread of the blind hole mounting cavity and is located between the locking sleeve and the terminal body.

[0011] As a further improvement, a circular hole is formed at the top of the blind hole mounting cavity, which extends radially through the blind hole mounting cavity.

[0012] As a further improvement, a wave-shaped spring washer is provided between the external threads of the terminal body and the locking sleeve to prevent the threaded connection from loosening.

[0013] As a further improvement, the reed includes a reed body and a reed limiting strip located outside one end of the reed body. The reed limiting strip is in the shape of a "7" and is integrally formed with the upper end of the reed body.

[0014] Furthermore, this utility model also solves the above problems through the following technical solutions:

[0015] A charging socket includes: a mounting plate, a socket assembly, and a replaceable spring terminal as described above, wherein the lower end of the replaceable spring terminal is limited and installed within the socket assembly, and the upper end of the replaceable spring terminal is limited by the mounting plate.

[0016] As a further improvement, the mounting plate is installed inside the socket assembly and is fitted with the upper end of the replaceable spring terminal so that it can be connected to the socket assembly by several screws with one end passing through the mounting plate, thereby realizing the installation of the replaceable spring terminal.

[0017] As a further improvement, the socket assembly is provided with a columnar connecting part that engages with a screw.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] (1) This utility model can avoid the need to replace the entire charging socket wiring harness when the spring of the traditional charging socket is damaged, thereby reducing maintenance costs.

[0020] (2) The terminal replacement component of this utility model consists of a locking sleeve, a spring and an end cap, and can also be disassembled to ensure that each part of the terminal replacement component can be replaced; and the detachable terminal replacement component is threaded into the terminal body and is connected to the charging socket together with the terminal body through a threaded connection, so as to realize the overall disassembly and replacement of the terminal replacement component. Attached Figure Description

[0021] Figure 1 This is an exploded view of a replaceable spring terminal according to the present invention;

[0022] Figure 2 This is an assembly diagram of a replaceable spring terminal according to the present invention;

[0023] Figure 3 This is a schematic diagram of the appearance of a replaceable spring terminal according to the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the reed of this utility model;

[0025] Figure 5 This is an exploded view of a DC charging socket according to the present invention.

[0026] Figure 6 This is a schematic diagram of the installation of a DC charging socket according to the present invention.

[0027] Figure label:

[0028] 1. Terminal body; 2. Wave spring; 3. Locking sleeve; 4. Spring; 41. Spring limit strip; 42. Spring body; 5. End cap; 6. Replaceable terminal assembly; 7. Screw; 8. Mounting plate; 9. Replaceable spring terminal; 10. Socket assembly. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example

[0031] Combined with appendix Figure 1-4 As shown, a replaceable spring terminal includes: a terminal body 1, a wave spring 2, a locking sleeve 3, a spring 4, and an end cap 5. A blind hole mounting cavity is formed axially within the terminal body 1. A circular hole is formed radially through the top of the blind hole mounting cavity to prevent the plating solution from obstructing flow during electroplating of the DC charging socket's inner socket. An internal thread is formed at the opening of the blind hole mounting cavity. A plurality of spring limiting strips 41 are spaced apart on the upper end of the spring 4. The spring 4 is fixed to the locking sleeve 3 and the end cap 5 by an interference fit to form a replaceable terminal assembly 6. The locking sleeve 3 is fitted over the spring 4 via its lower end and is limited by the spring limiting strips 41. The end cap 5 is fitted over the spring limiting strips 41 via its upper end to allow for the installation of the replaceable terminal assembly. Preferably, a groove is formed within the end cap 5 to mate with the plurality of spring limiting strips 41. The locking sleeve 3 has an external thread on its outer end away from the end cap 5, for connection with the internal thread of the blind hole mounting cavity. The wave spring 2 is located inside the internal thread of the blind hole mounting cavity, between the locking sleeve 3 and the terminal body 1, so that the wave spring is located between the terminal body and the replaceable component, providing an upward axial force to the replaceable terminal component and preventing the threads of the replaceable terminal component from loosening.

[0032] When the easily damaged spring is damaged, it can be replaced by removing the terminal replacement assembly using a hexagonal socket wrench. A wave-shaped spring washer is provided between the external threads of the locking sleeve 3 in the terminal body 1 and the terminal replacement assembly 6 to prevent the threaded connection from loosening.

[0033] Preferably, the reed 4 includes a reed body 42 and a reed limiting strip 41 located outside one end of the reed body 42. The reed limiting strip 41 is in the shape of a "7" and is integrally formed with the upper end of the reed body.

[0034] In a preferred embodiment, the upper end of the cap has a symmetrical flattened structure, such as a hexagon, a square, or a double-sided flattened structure, as shown in the attached figure. Figure 3 It has a hexagonal, symmetrical, flat structure so that it can be used with the sleeve to tighten the end cap during disassembly.

[0035] In an optional embodiment, combined with the appendix Figure 5-6 As shown, a DC charging socket includes: screws 7, mounting plate 8, replaceable spring terminals 9, and socket assembly 10. The replaceable spring terminals 9 are fixedly installed within the socket assembly 10. The mounting plate 8 is installed within the socket assembly 10 and has its upper end fitted onto the replaceable spring terminals 9. Several screws 7 pass through the mounting portion of the mounting plate 8 and connect to the columnar connecting portion within the socket assembly 10, thus installing the replaceable spring terminals 9. The tail end of the replaceable spring terminals 9 is fixedly installed within the socket assembly, while the front end is limited by the mounting plate, which is fastened to the socket assembly with screws. When the spring 4 is damaged, only the screws need to be removed, the mounting plate taken off, and the replaceable terminal assembly replaced. This avoids the need to replace the entire socket wiring harness when the spring of a traditional charging socket is damaged, thereby reducing maintenance costs.

[0036] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A replaceable spring terminal, characterized in that, The utility model relates to a replaceable spring terminal, which comprises a terminal body and a replaceable terminal assembly composed of a locking sleeve, a spring and an end cap. A plurality of spring limiting strips are arranged outside the upper end of the spring, and a plurality of notches are formed in the end cap to cooperate with the spring limiting strips; the locking sleeve is sleeved outside the spring through the lower end of the spring and is limited by the spring limiting strips; the end cap is sleeved outside the spring limiting strips of the spring through the upper end of the spring to realize the installation of the replaceable terminal assembly. A blind hole installation cavity is formed in the terminal body, and an internal thread is formed at the opening of the blind hole installation cavity; an external thread is formed on the locking sleeve to connect with the internal thread at the opening of the blind hole installation cavity. The spring is assembled outside the spring in an interference fit mode to fix the locking sleeve and the end cap.

2. The interchangeable spring leaf terminal of claim 1, wherein, An external thread is formed on the locking sleeve away from the end cap.

3. The interchangeable spring leaf terminal of claim 1, wherein, The replaceable spring terminal further comprises a wave spring, which is arranged inside the internal thread at the opening of the blind hole installation cavity and between the locking sleeve and the terminal body.

4. The interchangeable leaf terminal of claim 1, wherein: A circular hole is formed at the top of the blind hole installation cavity to penetrate the blind hole installation cavity in the radial direction.

5. The interchangeable spring leaf terminal of claim 1, wherein, A wave spring pad is arranged between the external thread of the terminal body and the locking sleeve to prevent the loosening of the threaded connection.

6. The interchangeable leaf terminal of claim 1, wherein: The spring comprises a spring body and a spring limiting strip arranged outside one end of the spring body, and the spring limiting strip is in the shape of "7" and is integrally formed with the upper end of the spring body; and / or 7. The interchangeable tab terminal of claim 1, wherein, A symmetrical flat structure is arranged outside the upper end of the end cap to cooperate with the sleeve. The utility model relates to a replaceable spring terminal, which comprises a terminal body and a replaceable terminal assembly composed of a locking sleeve, a spring and an end cap.

8. A charging socket, characterized by The installation plate is installed in the socket assembly and is sleeved with the upper end of the replaceable spring terminal to be connected with the socket assembly through a plurality of screws penetrating the installation plate to realize the installation of the replaceable spring terminal. A columnar connecting part is arranged in the socket assembly to cooperate with the screws.

9. The charging receptacle of claim 8, wherein, ​ 10. The charging receptacle of claim 9, wherein, ​

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