Locking elastic sheet and vehicle-mounted charger

Abstract

The utility model discloses a locking elastic piece and a vehicle-mounted charger, and relates to the technical field of electronic equipment, the locking elastic piece comprises an elastic piece main body, an elastic piece clamping foot and a supporting foot, the elastic piece clamping foot is arranged on the elastic piece main body, the elastic piece clamping foot has elasticity and protrudes towards the first side of the elastic piece main body, the elastic piece clamping foot deforms to generate elastic force and is used for abutting against a to-be-clamped component, and the supporting foot is used for supporting the to-be-clamped component. The supporting leg is arranged on the elastic piece body, protrudes towards the second side of the elastic piece body and is used for being connected with the installation shell in an abutting mode to form supporting. The locking elastic piece is simple in structure, convenient to install and small in occupied space in the normal direction of the side wall of the vertical water channel; the to-be-clamped part can be automatically locked by pressing the locking elastic piece into the clamping groove, elastic force is not needed to be generated by means of connecting pieces such as screws, the locking elastic piece can be fixed only through a few screws, and meanwhile the locking effect of the locking elastic piece cannot be affected by loosening of the screws.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and more specifically, to a locking spring and a vehicle charger. Background Art

[0002] Combine Figure 1 and Figure 2 Current products such as on-board chargers and DC-DC converters generally utilize a liquid cooling system 13 for cooling. Heat source devices 12, such as MOS tubes (Metal-Oxide-Semiconductor Field-Effect Transistors) or aluminum substrates, are attached to the sidewalls of the vertical water channel of the liquid cooling system 13 via locking springs 100. Locking springs 100 are secured with screws 11 and generate elastic force to apply pressure to the heat source devices 12. However, this type of locking spring 100 has the disadvantage of occupying a large amount of space normal to the sidewalls of the vertical water channel.

[0003] Therefore, how to reduce the space occupied by the locking spring in the normal direction of the side wall of the vertical waterway has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a locking spring to reduce the space it occupies in the normal direction of the side wall of the vertical waterway.

[0005] Another object of the present application is to provide a vehicle charger comprising the above-mentioned locking spring.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A locking shrapnel, comprising:

[0008] Shrapnel body;

[0009] The spring clip clamping foot is elastic, provided on the spring clip body, and protrudes toward the first side of the spring clip body, and is used to abut against the component to be clamped;

[0010] The supporting foot is provided on the spring body and is arranged to protrude toward the second side of the spring body.

[0011] Optionally, in the above-mentioned locking spring, the spring body includes:

[0012] A main body, the spring clip foot and the support foot are arranged on the main body, and the spring clip foot is arranged to protrude toward the first side of the main body, and the support foot is arranged to protrude toward the second side of the main body;

[0013] The connecting portion is connected to the first end of the main body portion and is provided with a connecting hole.

[0014] Optionally, in the above-mentioned locking spring, the supporting foot is provided at the first end of the main body, and the end portion of the second end of the main body is inclined toward the first side of the main body to form a guide flange.

[0015] Optionally, in the above-mentioned locking spring, the connecting hole is a waist-shaped hole arranged perpendicular to the plate surface of the main body.

[0016] Optionally, in the above-mentioned locking spring clip, a stiffness adjustment hole for adjusting stiffness is provided on the spring clip clamping foot.

[0017] Optionally, in the above-mentioned locking spring, the spring foot has a first end and a second end opposite to each other, the first end of the spring foot is connected to the spring body, and the second end is used to abut against the component to be clamped;

[0018] There are one or more spring clip clamping feet, the direction from the first end to the second end of the spring clip clamping foot is the clamping direction, and the clamping directions of at least two of the multiple spring clip clamping feet are the same or opposite.

[0019] A vehicle charger, comprising:

[0020] The mounting housing is provided with a clamping groove, wherein the clamping groove has a first side wall and a second side wall opposite to each other;

[0021] The component to be clamped is disposed in the clamping groove and is in contact with the first side wall;

[0022] The locking spring is the above-mentioned locking spring, which is arranged in the clamping groove, the spring clamping foot abuts against the component to be clamped, and the supporting foot abuts against the second side wall.

[0023] Optionally, in the above-mentioned on-board charger, a first guide surface is provided at one end of the second side wall close to the opening, and the first guide surface is used for slidingly cooperating with the supporting foot.

[0024] Optionally, in the above-mentioned on-board charger, a sliding fitting surface that slides with the first guide surface is provided on the supporting foot.

[0025] Optionally, in the above-mentioned on-board charger, a locking boss protruding toward the first side wall is provided at one end of the second side wall close to the bottom of the clamping groove, and the end surface of the locking boss facing the first side wall is a locking surface for abutting against the elastic sheet body;

[0026] The second side wall is transitionally connected to the locking surface via a second guide surface, and the second guide surface is used for slidingly cooperating with the guide flange of the locking elastic piece.

[0027] The locking spring provided in the present application includes a spring body, a spring clamping foot and a support foot. The spring clamping foot is arranged on the spring body, and the spring clamping foot is elastic and protrudes toward the first side of the spring body. The deformation of the spring clamping foot can generate elastic force, which is used to abut against the component to be clamped. The support foot is arranged on the spring body and protrudes toward the second side of the spring body, which is used to abut against the installation shell to form support.

[0028] The component to be clamped is used to be set in the clamping groove of the mounting housing. The clamping groove has a first side wall and a second side wall opposite to each other. The first side wall serves as the side wall of the vertical waterway, and the component to be clamped is used to be pressed against the first side wall. During assembly, the first side of the spring body is placed toward the component to be clamped, and the second side is arranged toward the second side wall of the clamping groove. The locking spring is then inserted into the clamping groove. During the insertion process, due to the abutment between the supporting foot and the second side wall of the clamping groove, the spring body drives the spring clamp foot to move in the direction of the component to be clamped. The spring clamp foot generates elastic deformation and presses the component to be clamped against the first side wall of the clamping groove. Finally, the spring body is fixed to the mounting housing by screws, bolts, and other connecting parts to complete the assembly.

[0029] Compared with the prior art, the locking spring provided by the present application has a simple structure, is easy to install, and occupies less space in the normal direction of the side wall of the vertical waterway; the present application can automatically lock the clamping component by pressing the locking spring into the clamping groove without the need to use screws or other connecting parts to generate elastic force, so that only a few screws are needed to fix the locking spring, and the loosening of the screws will not affect the locking effect of the locking spring.

[0030] The vehicle charger provided in the present application includes a mounting shell, a component to be clamped and the above-mentioned locking spring. The mounting shell is provided with a clamping groove having a first side wall and a second side wall opposite to each other; the component to be clamped is arranged in the clamping groove and is in contact with the first side wall; the spring body is arranged in the clamping groove, the spring clamping foot abuts against the component to be clamped to press the component to be clamped against the first side wall, and the supporting foot abuts against the second side wall.

[0031] In addition, due to the above-mentioned locking spring, the above-mentioned structure and beneficial effects are also achieved, which will not be described in detail here. Compared with the prior art, the internal structure of the on-board charger provided by this application is more compact and the power density is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 It is a structural diagram of a spring pressing piece in the prior art;

[0034] Figure 2 It is a schematic diagram of the assembly of a spring pressing piece in the prior art;

[0035] Figure 3 This is a schematic diagram of the structure of the first locking spring disclosed in the embodiment of this application. Figure 1 ;

[0036] Figure 4 This is a schematic diagram of the structure of the first locking spring disclosed in the embodiment of this application. Figure 2 ;

[0037] Figure 5 This is a schematic diagram of the structure of the first locking spring disclosed in the embodiment of this application. Figure 3 ;

[0038] Figure 6 This is a schematic diagram of the assembly of the first locking spring disclosed in the embodiment of this application. Figure 1 ;

[0039] Figure 7 This is a schematic diagram of the assembly of the first locking spring disclosed in the embodiment of this application. Figure 2 ;

[0040] Figure 8 This is a schematic structural diagram of the second locking spring disclosed in an embodiment of the present application;

[0041] Figure 9 This is a schematic diagram of the assembly of the second locking spring disclosed in the embodiment of this application. Figure 1 ;

[0042] Figure 10 This is a schematic diagram of the assembly of the second locking spring disclosed in the embodiment of this application. Figure 2 ;

[0043] Figure 11 This is a schematic structural diagram of the third locking spring disclosed in an embodiment of the present application;

[0044] Figure 12 This is a schematic diagram of the assembly of the third locking spring disclosed in the embodiment of this application. Figure 1 ;

[0045] Figure 13 This is a schematic diagram of the assembly of the third locking spring disclosed in the embodiment of this application. Figure 2 .

[0046] Among them, 11 is a screw, 12 is a heat source device, and 13 is a liquid cooling system;

[0047] 100 is a locking spring, 110 is a main body, 111 is a guide flange, 120 is a connecting portion, 121 is a connecting hole, 130 is a spring clamping foot, 131 is a stiffness adjustment hole, 140 is a supporting foot, 141 is a sliding mating surface, and 142 is a supporting surface;

[0048] 200 is a mounting housing, 201 is a first side wall, 202 is a second side wall, 203 is a second guide surface, 204 is a locking surface, 205 is a first guide surface, and 210 is a liquid cooling channel;

[0049] 300 is a part to be clamped;

[0050] 400 is a connecting piece. DETAILED DESCRIPTION

[0051] The core of this application is to disclose a locking spring 100 to reduce the space it occupies in the normal direction of the side wall of a vertical waterway.

[0052] Another core of this application is to disclose a vehicle charger including the above-mentioned locking spring.

[0053] The following describes the embodiments with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the contents of the utility model described in the claims. Furthermore, the entire contents of the configurations shown in the following embodiments are not limited to those necessary for the solutions of the utility model described in the claims. It should be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings. The embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict.

[0054] Combine Figure 3-Figure 7 The locking spring 100 disclosed in this application includes a spring body, a spring foot 130, and a support foot 140. The spring foot 130 is provided on the spring body and is elastic. The spring foot 130 is arranged to protrude toward a first side of the spring body. The deformation of the spring foot 130 can generate elastic force for abutting the component to be clamped 300. The support foot 140 is provided on the spring body and protrudes toward a second side of the spring body for abutting the mounting housing 200 to provide support. The first side and the second side of the spring body are opposite sides.

[0055] Combine Figure 6 and Figure 7The component to be clamped 300 is used to be set in the clamping groove of the mounting housing 200. The clamping groove has a first side wall 201 and a second side wall 202 opposite to each other. The first side wall 201 serves as the side wall of the vertical water channel, and the component to be clamped 300 is used to be pressed against the first side wall 201. During assembly, the first side of the spring body is placed toward the component to be clamped 300, and the second side is arranged toward the second side wall 202 of the clamping groove. Then, the locking spring 100 is inserted into the clamping groove. During the insertion process, due to the abutment between the supporting foot 140 and the second side wall 202 of the clamping groove, the spring body drives the spring clamp foot 130 to move toward the direction of the component to be clamped 300. The spring clamp foot 130 generates elastic deformation and presses the component to be clamped 300 against the first side wall 201 of the clamping groove. Finally, the spring body is fixed to the mounting housing 200 by connecting members 400 such as screws and bolts to complete the assembly.

[0056] Compared with the prior art, the locking spring 100 disclosed in the present application has a simple structure, is easy to install, and occupies less space in the normal direction of the side wall of the vertical waterway; the present application can automatically lock the clamping component 300 by pressing the locking spring 100 into the clamping groove, without the need to use connecting parts 400 such as screws to generate elastic force, so that only a few screws are needed to fix the locking spring 100, and the loosening of the screws will not affect the locking effect of the locking spring 100.

[0057] Specifically, the spring clip body includes a main body 110 and a connecting portion 120, and the spring clip clamping foot 130 and the supporting foot 140 are both arranged on the main body 110, and the spring clip clamping foot 130 is arranged to protrude toward the first side of the main body 110, and the supporting foot 140 is arranged to protrude toward the second side of the main body 110; the connecting portion 120 is connected to the first end of the main body 110, and is provided with a connecting hole 121 for connecting to the mounting shell 200 or other components.

[0058] The connecting portion 120 can be specifically provided on the first side or the second side of the main body 110, and is usually as follows: Figure 5 The one shown in FIG. 1 is arranged on the second side of the main body 110 to avoid the to-be-clamped component 300 located on the first side of the main body 110 .

[0059] Since the second side wall 202 of the mounting shell 200 is usually arranged at right angles to the outer wall of the opening end of the clamping groove, the connecting portion 120 and the main body 110 are usually also arranged perpendicularly, which facilitates the fitting and fixation of the connecting portion 120 to the outer wall of the opening end of the clamping groove. At the same time, the fitting of the connecting portion 120 to the outer wall of the opening end of the clamping groove can also limit the depth of the locking spring 100 inserted into the mounting groove. In the present application, the connecting hole 121 is only used to fix the mounting shell 200 via a connecting member 400 such as a screw, and since the screw in the present application only has the technical effect of preventing the locking spring 100 from moving, the loosening of individual screws will not affect the elastic force of the locking spring 100, and the locking effect is more reliable. In addition, in this embodiment, the assembly of the locking spring 100 and the screw can be performed outside the clamping groove, which has a large assembly space, is more convenient to operate, and is more conducive to automation.

[0060] To improve assembly tolerance, the connection hole 121 is a waist-shaped hole set perpendicular to the plate surface of the main body 110 to accommodate the position changes of different locking springs 100 in the clamping groove. In some embodiments, the locking spring 100 can also be fixed to the mounting housing by clamping, welding, etc.

[0061] The main body 110 and the connecting portion 120 are generally an integrated structure and are both plate-shaped, specifically sheet metal parts.

[0062] In a specific embodiment disclosed in this application, Figure 11-13 At least two sets of support legs 140 are provided on the main body 110. The two sets of support legs 140 ensure that, after the locking spring 100 is assembled into the clamping groove, the main body 110 remains parallel to the first side wall 201, thereby ensuring a secure clamping effect on the clamping component 300. The support legs 140 can be located in the middle or at an edge of the second side of the spring body.

[0063] In a specific embodiment disclosed in this application, Figure 6 The supporting foot 140 is arranged at the first end of the main body 110, and a locking boss is provided at one end of the second side wall 202 of the clamping groove on the mounting shell 200, close to the bottom of the clamping groove. The locking boss is arranged to protrude in the direction of the first side wall 201, and the end surface of the locking boss facing the first side wall 201 is a locking surface 204 for abutting against the second end of the main body 110, and the first side wall 201 is parallel to the locking surface 204.

[0064] Combine Figure 7When the locking spring 100 is in the locked state, the first end of the main body 110 is supported by the second side wall 202 through the supporting foot 140, and the second end is supported by the locking surface 204, and along the normal direction of the first side wall 201, the distance between the first side wall 201 and the locking surface 204 is equal to or nearly equal to the size of the supporting foot 140, so as to ensure that the main body 110 can maintain a parallel state with the first side wall 201 to clamp the clamping component 300.

[0065] Further optimization scheme, in order to ensure that the spring clip foot 130 exerts sufficient clamping force on the clamping component 300, while facilitating the insertion of the locking spring 100 into the clamping groove, combined with Figure 6 The second side wall 202 and the locking surface 204 transition through the second guide surface 203, that is, along the direction from the opening of the clamping groove to the bottom of the groove ( Figure 7 In the up and down directions), the second guide surface 203 is inclined toward the direction of the second side wall 202, and correspondingly, the end portion of the second end of the main body 110 is inclined toward the first side of the main body 110 to form a guide flange 111 that slides with the second guide surface 203. The guide flange 111 is used to facilitate the movement of the main body 110 along the guide of the second guide surface 203 in the direction of the first side wall 201.

[0066] Combine Figure 6 In the above embodiment, the supporting foot 140 is arranged at the first end of the main body 110, so that during the process of inserting the locking spring 100 into the clamping groove, the spring clamping foot 130 remains in a non-contact state with the component to be clamped 300. Until the supporting foot 140 is inserted into the clamping groove, the second end of the main body 110 gradually fits with the locking surface 204 under the action of the guide flange 111 and the second guide surface 203. At this time, the spring body as a whole translates in the direction of the component to be clamped 300 and presses the component to be clamped 300, and continues to insert the locking spring 100 until the connecting portion 120 forms a limit with the mounting shell 200.

[0067] The number of spring clip clamping feet 130 on a locking spring clip 100 can be one or more. When there are multiple spring clip clamping feet 130, the spring clip clamping feet 130 are defined as having a first end and a second end opposite each other, and the direction from the first end of the spring clip clamping foot 130 to the second end is defined as the clamping direction. The first end of the spring clip clamping foot 130 is connected to the spring clip body, and the second end is used to abut the component to be clamped 300. The clamping direction is generally arranged perpendicular to the plane of the main body 110, and the clamping directions of at least two of the multiple spring clip clamping feet 130 are the same or opposite.

[0068] The clamping direction of the spring clip clamping foot 130 can be adjusted according to the actual situation. Preferably, the clamping directions of the two adjacent spring clip clamping feet 130 are opposite, that is, Figure 2 and Figure 3 The spring clip legs 130 are arranged in a staggered pattern. Alternatively, the spring clip legs 130 may be arranged symmetrically on the spring clip body. This allows the locking spring 100 to apply more uniform pressure to the component 300 to be clamped, preventing gaps between the component 300 to be clamped and the second sidewall 202 that could affect heat dissipation. Furthermore, the multiple spring clip legs 130 may be of different sizes to facilitate clamping different locations on the component 300 to be clamped.

[0069] In a specific embodiment disclosed in this application, Figure 7-Figure 9 The locking spring 100 has the same locking direction for each spring clip foot 130, and the multiple spring clip foots 130 are staggered on the spring body to lock different parts of the component to be locked 300. During installation, since each spring clip foot 130 elastically deforms in the same direction, the probability of interference with the component to be locked 300, resulting in assembly failure, is low.

[0070] Combine Figure 4 A stiffness adjustment hole 131 is provided on the spring clip foot 130 . By controlling the shape and size of the stiffness adjustment hole 131 , the stiffness of the spring clip foot 130 can be adjusted, thereby adjusting the size of the elastic force of the spring clip foot 130 .

[0071] The vehicle charger disclosed in the present application includes a mounting housing 200, a component to be clamped 300, and the above-mentioned locking spring 100. The mounting housing 200 is provided with a clamping groove having a first side wall 201 and a second side wall 202 opposite to each other; the component to be clamped 300 is arranged in the clamping groove and is in contact with the first side wall 201; the spring body is arranged in the clamping groove, the spring clamping foot 130 abuts against the component to be clamped 300 to press the component to be clamped 300 against the first side wall 201, and the supporting foot 140 abuts against the second side wall 202.

[0072] Due to the aforementioned locking spring 100, the above-mentioned structure and beneficial effects are also achieved, which will not be described in detail here. Compared with the prior art, the on-board charger disclosed in this application has a more compact internal structure and a higher power density.

[0073] The second sidewall 202 is usually used as the enclosing surface of the liquid cooling channel 210 on the mounting housing 200. The second sidewall 202 and the component to be clamped 300 are attached to each other to dissipate heat. The component to be clamped 300 specifically includes but is not limited to MOS tubes, aluminum substrates, etc.

[0074] In order to facilitate the insertion of the spring body into the clamping groove, Figure 6 and Figure 7A first guide surface 205 is provided at one end of the second side wall 202, near the opening. The first guide surface 205 is configured to slideably engage with the support leg 140. Correspondingly, the support leg 140 is provided with a sliding engagement surface 141 configured to slideably engage with the first guide surface 205. As the support leg 140 enters the clamping groove, the sliding engagement surface 141 gradually slides inward, guided by the first guide surface 205, until the end surface of the support leg 140 facing away from the main body 110 serves as the support surface 142, abutting against the second side wall 202 and providing support. Specifically, the first guide surface 205 and the sliding engagement surface 141 may be flat or curved.

[0075] In a specific embodiment disclosed herein, a locking boss protrudes toward the first side wall 201 at one end of the second side wall 202, near the bottom of the clamping groove. The end surface of the locking boss facing the first side wall 201 serves as a locking surface 204 for abutting the spring body. A second guide surface 203 transitions between the second side wall 202 and the locking surface 204. The second guide surface 203 is inclined toward the second side wall 202 along the direction from the opening of the clamping groove toward the bottom of the groove.

[0076] During assembly, the component 300 to be clamped is attached to the first side wall 201, and the spring clip foot 130 of the locking spring clip 100 is aligned with the pressure point of the component 300 to be clamped (generally the highest point such as the top surface of the MOS tube and other components), and then placed in the clamping groove until the support foot 140 and the guide flange 111 are in contact with the first guide surface 205 and the second guide surface 203 respectively. At this time, pressure is continued to be applied to the locking spring clip 100 to move into the clamping groove. The support foot 140 and the guide flange 111 move simultaneously along the guidance of the first guide surface 205 and the second guide surface 203 toward the inside of the clamping groove and the direction of the first side wall 201, so that the spring clip foot 130 abuts against the component 300 to be clamped. Further force is applied to press down the locking spring 100, and the spring clamping foot 130 is deformed and generates elastic force to clamp the component 300 to be clamped until the main body 110 and the mounting shell 200 form a limit. Finally, the locking spring 100 and the mounting shell 200 are fixed at the connecting hole 121 through the connecting piece 400 to complete the assembly.

[0077] The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the present application. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of this application. The specific technical means in some embodiments may be incorporated into another embodiment in part or in whole, unless expressly excluded by another embodiment. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking spring, characterized in that: include: Shrapnel body; The spring clip clamping foot (130) is elastic, provided on the spring clip body, and protrudes toward the first side of the spring clip body, and is used to abut against the component to be clamped (300); The supporting foot (140) is provided on the spring sheet body and is arranged to protrude toward the second side of the spring sheet body.

2. The locking spring according to claim 1, wherein: The shrapnel body comprises: A main body (110), the spring clip foot (130) and the support foot (140) are both arranged on the main body (110), and the spring clip foot (130) is arranged to protrude toward a first side of the main body (110), and the support foot (140) is arranged to protrude toward a second side of the main body (110); The connecting portion (120) is connected to the first end of the main body (110) and is provided with a connecting hole (121).

3. The locking spring according to claim 2, wherein: The supporting foot (140) is provided at the first end of the main body (110), and the end portion of the second end of the main body (110) is inclined toward the first side of the main body (110) to form a guide flange (111).

4. The locking spring according to claim 2, wherein: The connecting hole (121) is a waist-shaped hole arranged perpendicular to the plate surface of the main body (110).

5. The locking spring according to claim 1, wherein: The spring clip foot (130) has a first end and a second end opposite to each other, the first end of the spring clip foot (130) is connected to the spring clip body, and the second end is used to abut against the component to be clamped (300); There are one or more spring clip clamping feet (130), the direction from the first end to the second end of the spring clip clamping feet (130) is a clamping direction, and the clamping directions of at least two of the plurality of spring clip clamping feet (130) are the same or opposite.

6. The locking spring according to claim 1, wherein: The spring clip clamping foot (130) is provided with a stiffness adjustment hole (131) for adjusting stiffness.

7. A vehicle charger, characterized in that: include: The mounting housing (200) is provided with a clamping groove, wherein the clamping groove has a first side wall (201) and a second side wall (202) opposite to each other; The component to be clamped (300) is disposed in the clamping groove and is in contact with the first side wall (201); The locking spring (100) is a locking spring (100) according to any one of claims 1 to 6, wherein the locking spring (100) is arranged in the clamping groove, the spring clamping foot (130) abuts against the component to be clamped (300), and the supporting foot (140) abuts against the second side wall (202).

8. The vehicle charger according to claim 7, wherein: A first guide surface (205) is provided at one end of the second side wall (202) close to the opening, and the first guide surface (205) is used for slidingly cooperating with the supporting foot (140).

9. The vehicle charger according to claim 8, wherein: The supporting foot (140) is provided with a sliding fitting surface (141) that slides with the first guide surface (205).

10. The vehicle charger according to claim 7, wherein: A locking boss protruding in the direction of the first side wall (201) is provided at one end of the second side wall (202) close to the bottom of the clamping groove, and the end surface of the locking boss facing the first side wall (201) is a locking surface (204) for abutting against the spring body; The second side wall (202) and the locking surface (204) are transitionally connected via a second guide surface (203), and the second guide surface (203) is used for sliding engagement with the guide flange (111) of the locking spring (100).

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