Limiting support, charging gun and charging equipment

Abstract

The utility model provides a limiting support, a charging gun and charging equipment, and belongs to the technical field of electronic devices. The limiting bracket is used for fixing a connecting terminal of the charging gun; the connecting terminal is provided with a fixed clamping groove; the limiting support comprises a support body, a mounting hole is formed in the support body, the mounting hole comprises a preassembling hole part and a fixing hole part which are communicated, the inner diameter of the preassembling hole part is larger than the outer diameter of the connecting terminal, and the preassembling hole part is used for being connected with the connecting terminal in a penetrating mode; the inner diameter of the fixing hole part is smaller than the outer diameter of the connecting terminal, and the fixing hole part is matched with the outer diameter of the fixing clamping groove and used for clamping the fixing clamping groove so as to fix the connecting terminal. The limiting support is simple in structure, convenient to operate and capable of achieving limiting and fixing of the connecting terminal welded and fixed to the PCBA structure.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and in particular to a limiting bracket, a charging gun and a charging device. Background Art

[0002] A charging gun is a tool used to charge electric vehicles. It can be connected to the charging port of the electric vehicle to transfer electrical energy to the vehicle's battery.

[0003] In the related art, the charging gun has a PCBA (Printed Circuit Board Assembly) structure and a plurality of connection terminals connected to its wires. The positions of the plurality of connection terminals are flexible, and each connection terminal can be independently installed and fixed.

[0004] In order to improve the connection reliability between the connecting terminals and the PCBA structure, multiple connecting terminals can be welded and connected to the PCBA structure to integrate one component. However, this results in the relative positions of the multiple connecting terminals being fixed, and a separate fixing method cannot be adopted, which increases the difficulty of limiting and fixing the multiple connecting terminals. Utility Model Content

[0005] The utility model provides a limiting bracket, a charging gun and a charging device, which can solve the problem of increased difficulty in limiting and fixing the connection terminals in the charging gun.

[0006] The technical solution is as follows:

[0007] On the one hand, the utility model provides a limit bracket, which is used to fix the connection terminal of the charging gun; the connection terminal has a fixed slot;

[0008] The limiting bracket includes a bracket body, which has a mounting hole. The mounting hole includes a pre-installed hole portion and a fixed hole portion that are connected to each other. The inner diameter of the pre-installed hole portion is larger than the outer diameter of the connecting terminal and is used to pass through the connecting terminal. The inner diameter of the fixed hole portion is smaller than the outer diameter of the connecting terminal and is adapted to the outer diameter of the fixed slot and is used to clamp the fixed slot to fix the connecting terminal.

[0009] In some embodiments, the fixing hole portion is located below the pre-installed hole portion.

[0010] In some embodiments, the length of a common chord between the pre-installed hole portion and the fixed hole portion is smaller than an outer diameter of the fixed slot.

[0011] In some embodiments, there are multiple mounting holes, each of which corresponds to one connecting terminal; and the multiple mounting holes are arranged at intervals in the horizontal direction.

[0012] In some embodiments, the bracket body further includes a notch groove, and the notch groove is located on an edge of the bracket body.

[0013] In some embodiments, the limiting bracket also includes a base body, one side edge of the base body is connected to the bracket body, the surface of the base body is parallel to the axis of the mounting hole, and the fixing hole portion of the base body is away from one side of the pre-installed hole portion.

[0014] On the other hand, a charging gun is provided, the charging gun comprising: the limit bracket of the utility model, as well as a housing assembly, a circuit board assembly and a connecting terminal;

[0015] The housing assembly comprises a housing component and a plug component, wherein the plug component and the housing component are arranged front and back along the plugging direction of the charging gun;

[0016] The circuit board assembly is located in the shell component, the limiting bracket is located between the shell component and the plug component, one end of the connecting terminal is connected to the circuit board assembly, and the other end of the connecting terminal extends through the mounting hole into the plug component.

[0017] In some embodiments, the connection terminals include power terminals and signal terminals;

[0018] When the limiting bracket includes a mounting hole and a notch groove, the power terminal is connected to the mounting hole correspondingly, and the signal terminal is connected to the notch groove correspondingly.

[0019] In some embodiments, when the limiting bracket includes a base body, the circuit board assembly is located on the base body.

[0020] On the other hand, a charging device is provided, which includes the charging gun described in the utility model, and a cable; the cable is located at the rear end of the charging gun along the plugging direction, and is inserted into the charging gun to be electrically connected to the connecting terminal.

[0021] The beneficial effects brought by the technical solution provided by the utility model include at least:

[0022] The limiting bracket provided by the embodiment of the utility model has a connected pre-installed hole portion and a fixed hole portion. The connecting terminal can be installed through the pre-installed hole portion, and the fixing slot can be clamped and fixed by using the fixed hole portion. Therefore, the connecting terminal can be inserted into the pre-installed hole portion first. When the fixing slot reaches the pre-installed hole portion, the connecting terminal is moved toward the fixing hole portion, and the fixing slot can be clamped and fixed in the fixing hole portion, and then the entire connecting terminal is clamped and fixed on the limiting bracket, providing axial limitation for the connecting terminal, improving the reliability of the connecting terminal during the plugging and unplugging process of the charging gun, having a simple structure and convenient operation, and can realize the limiting fixation of the connecting terminal welded and fixed on the PCBA structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural cross-sectional view of the position limiting bracket provided in an embodiment of the utility model;

[0025] Figure 2 It is a structural exploded view of the position limiting bracket provided in the embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a position limiting bracket provided in an embodiment of the utility model;

[0027] Figure 4 It is a structural cross-sectional view of a charging gun provided in an embodiment of the utility model;

[0028] Figure 5 It is a schematic diagram of the combined state of the circuit board assembly and the limiting bracket provided in the embodiment of the utility model;

[0029] Figure 6 It is a schematic diagram of the exploded state of the circuit board assembly and the limiting bracket provided in the embodiment of the utility model;

[0030] Figure 7 It is a schematic diagram of the structure of the charging gun provided by the embodiment of the utility model;

[0031] Figure 8 It is a structural exploded view of the charging gun provided in the embodiment of the utility model.

[0032] The reference numerals in the figures represent respectively:

[0033] 1. Limit bracket;

[0034] 11. bracket body; 111. mounting hole; 1101. pre-installed hole portion; 1102. fixing hole portion; 112. notch groove; 12. bottom bracket body; 13. limiting structure; 131. limiting hole; 132. limiting column; 14. guide wing;

[0035] 2. Connecting terminals;

[0036] 21, fixed card slot; 22, power terminal; 221, first card slot; 23, signal terminal; 231, second card slot;

[0037] 3. Circuit board components;

[0038] 31. Circuit board body; 32. Functional devices;

[0039] 4. Shell assembly;

[0040] 401, first accommodating chamber; 402, second accommodating chamber;

[0041] 41. Shell member; 42. Plug member;

[0042] 5. Cable.

[0043] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be noted that, unless otherwise defined, the technical terms or scientific terms used herein should have the common meanings understood by persons having ordinary skills in the field to which the present disclosure belongs.

[0046] In the description of the present invention, some directional terms are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention. In the embodiments of the present invention, such as "upper", "lower", "side", etc., they are generally used as Figure 1The relative relationship of the orientation shown in the figure is used as the basis, and these orientation terms are used only to more clearly describe the relationship between structures, not to describe absolute orientation. When the product is placed in different postures, the orientation may change, for example, "up" and "down" may be interchangeable.

[0047] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0048] On the one hand, combined with Figure 1 As shown, this embodiment provides a limiting bracket 1, which is used to fix the connecting terminal 2 of the charging gun; the connecting terminal 2 has a fixing slot 21.

[0049] The limiting bracket 1 includes a bracket body 11, which has a mounting hole 111. The mounting hole 111 includes a pre-installed hole portion 1101 and a fixed hole portion 1102 that are connected to each other. The inner diameter of the pre-installed hole portion 1101 is larger than the outer diameter of the connecting terminal 2 and is used to pass the connecting terminal 2; the inner diameter of the fixed hole portion 1102 is smaller than the outer diameter of the connecting terminal 2 and is adapted to the outer diameter of the fixed slot 21, and is used to clamp the fixed slot 21 to fix the connecting terminal 2.

[0050] The limiting bracket 1 of this embodiment has a pre-installed hole portion 1101 and a fixed hole portion 1102, wherein the inner diameter of the pre-installed hole portion 1101 is larger than the outer diameter of the connecting terminal 2, and the connecting terminal 2 can be inserted and installed in the pre-installed hole portion 1101, and the inner diameter of the fixed hole portion 1102 is smaller than the outer diameter of the connecting terminal 2, but is adapted to the outer diameter of the fixed card slot 21, and the fixed card slot 21 can be clamped and fixed by using the fixed hole portion 1102, so that the connecting terminal 2 can be inserted into the pre-installed hole portion 1101 first, and when the fixed card slot 21 reaches the limiting bracket 1, the connecting terminal 2 is moved into the fixed hole portion 1102, and the fixed card slot 21 can be clamped and fixed in the fixed hole portion 1102, and then the entire connecting terminal 2 is clamped and fixed on the limiting bracket 1, providing axial limitation for the connecting terminal 2, improving the reliability of the connecting terminal 2 during the plugging and unplugging process of the charging gun, with a simple structure and convenient operation, and can realize the limiting fixation of the connecting terminal 2 welded and fixed on the PCBA structure.

[0051] The inner diameter of the fixing hole 1102 is adapted to the outer diameter of the fixing slot 21 , and the inner diameter of the fixing hole 1102 may be larger than the outer diameter of the fixing slot 21 , or the inner diameter of the fixing hole 1102 may be smaller than the outer diameter of the fixing slot 21 .

[0052] In the limiting bracket 1 of this embodiment, the outer diameter of the fixed slot 21 is smaller than the inner diameter of the connecting terminal 2, and part of the edge of the fixing slot 21 is embedded in the fixing slot 21 of the connecting terminal 2, which limits the axial freedom of the connecting terminal 2, thereby offsetting the axial plugging and unplugging force applied to the connecting terminal 2 during the plugging and unplugging process of the charging gun, thereby achieving limited fixation of the connecting terminal 2.

[0053] The connection terminal 2, also called a plug, is a component that electrically connects the charging gun to the charging port of an electrical device (such as an electric car), and can transmit electrical energy or electrical signals between the charging gun and the electrical device. Exemplarily, the connection terminal 2 can be a power terminal for transmitting electrical energy, or a signal terminal for transmitting electrical signals.

[0054] In some possible implementations, when the connection terminal 2 is welded and fixed on the PCBA structure, the rear end of the connection terminal 2 along the plugging direction of the charging gun is welded and fixed on the PCBA structure, and the front end of the connection terminal 2 is suspended.

[0055] When the limiting bracket 1 is used to limit and fix the connection terminal 2 welded and fixed on the PCBA structure, the front end of the connection terminal 2 is first aligned and inserted into the pre-installed hole portion 1101. At this time, the PCBA structure and the connection terminal 2 move forward as a whole; when the fixed card slot 21 of the connection terminal 2 reaches the pre-installed hole portion 1101, the connection terminal 2 and the PCBA structure are moved as a whole toward the direction of the fixed hole portion 1102 until the fixed card slot 21 is inserted into the fixed hole portion 1102, thereby completing the limiting connection between the limiting bracket 1 and the connection terminal 2.

[0056] Among them, regarding the relative positions of the fixed hole portion 1102 and the pre-installed hole portion 1101 in the scenario of a single installation hole 111, for example, the fixed hole portion 1102 is located below the pre-installed hole portion 1101, or the fixed hole portion 1102 is located above the pre-installed hole portion 1101, it can be reasonably designed according to actual needs.

[0057] Combination Figure 2 As shown, in some embodiments, the fixing hole portion 1102 in the mounting hole 111 is located below the pre-installed hole portion 1101 in the vertical direction, or below in the inclined direction.

[0058] Through the above arrangement, the fixing hole portion 1102 is located below the pre-installed hole portion 1101, and the movement of the connecting terminal 2 from top to bottom can realize the clamping of the fixing slot 21 of the connecting terminal 2 and the fixing hole portion 1102. With the help of the gravity of the connecting terminal 2 and its connecting structure (such as PCBA structure), the assembly difficulty of the connecting terminal 2 and the mounting hole 111 can be simplified, and the connecting terminal 2 can be kept in the fixing hole portion 1102.

[0059] Combination Figure 2As shown, in some embodiments, the length of the common chord formed by the connection between the pre-installed hole portion 1101 and the fixed hole portion 1102 is smaller than the outer diameter of the fixed slot 21, so that a shrinkage structure is formed between the pre-installed hole portion 1101 and the fixed hole portion 1102. The shrinkage structure can apply a pre-tightening force to the fixed slot 21, thereby pressing the fixed slot 21 into the fixed hole portion 1102.

[0060] Combination Figure 2 As shown, in some embodiments, there are multiple mounting holes 111, each mounting hole 111 corresponds to a connecting terminal 2; and the multiple mounting holes 111 are arranged at intervals along the horizontal direction.

[0061] The position limiting bracket 1 of this embodiment can use multiple mounting holes 111 to position and fix the connection terminals 2 in a one-to-one correspondence when facing multiple connection terminals 2. Moreover, in different mounting holes 111, the pre-installed hole portion 1101 and the fixed hole portion 1102 are arranged in the vertical direction. Thus, multiple connection terminals 2 can be inserted into the pre-installed hole portion 1101 synchronously, and then synchronously move downward to be clamped into the fixed hole portion 1102 for clamping and position limiting.

[0062] In some possible implementations, the relative positions of the multiple connection terminals 2 are fixed, and the positions of the mounting holes 111 correspond one to one with the positions of the connection terminals 2. After the multiple connection terminals 2 are respectively inserted into different pre-installed hole portions 1101, they are simultaneously moved downward and respectively snapped into their respective fixing hole portions 1102, thereby achieving synchronous snapping of the multiple connection terminals 2.

[0063] Exemplarily, the relative positions of the plurality of connection terminals 2 are fixed, and the plurality of connection terminals 2 may be welded and connected to the same PCBA structure, and the plurality of connection terminals 2 and the PCBA structure are combined into a whole.

[0064] Combination Figure 2 and Figure 3 As shown, in some embodiments, the bracket body 11 further includes a notch groove 112 , and the notch groove 112 is located on the edge of the bracket body 11 .

[0065] Through the above arrangement, the position-limiting bracket 1 of this embodiment can also use the notch groove 112 on the edge of the bracket body 11 to position and fix the connecting terminal 2. When in use, it is only necessary to align the fixing slot 21 of the connecting terminal 2 with the notch groove 112, and a part of the edge of the notch groove 112 is embedded in the fixing slot 21 to limit the axial freedom of the connecting terminal 2, thereby offsetting the axial plugging and unplugging force on the connecting terminal 2 during the plugging and unplugging process of the charging gun, and realizing the position-limiting fixation of the connecting terminal 2.

[0066] In some possible implementations, reference Figure 2As shown, the notch groove 112 can be located on any edge of the bracket body 11, and the axis of the notch groove 112 is parallel to the axis of the mounting hole 111. Exemplarily, the notch groove 112 is located on the top edge of the bracket body 11 in the vertical direction.

[0067] In some other possible implementations, refer to Figure 2 As shown, there may be a plurality of notch grooves 112 , each notch groove 112 corresponds to a connecting terminal 2 , and the plurality of notch grooves 112 are arranged at intervals along the horizontal direction.

[0068] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the limiting bracket 1 also includes a base body 12, one side edge of the base body 12 is connected to the bracket body 11, the surface of the base body 12 is parallel to the axis of the mounting hole 111, and the base body 12 is located on the side of the fixing hole portion 1102 away from the pre-installed hole portion 1101.

[0069] Through the above arrangement, the limiting bracket 1 can limit and fix the connection terminal 2 by using the bracket body 11, and can limit and fix the PCBA structure (or other circuit board structure) by using the base body 12, so as to realize the integral limiting and fixing of the connection terminal 2 and the PCBA structure. When the connection terminal 2 is welded and fixed on the PCBA structure, the limiting bracket 1 of this embodiment has a better limiting and fixing effect.

[0070] Exemplarily, the edge of the bottom support body 12 is connected to the bottom edge of the bracket body 11 along the vertical direction, and the surface of the bottom support body 12 remains parallel to the horizontal plane, thereby providing horizontal support for the PCA structure.

[0071] Combination Figure 2 As shown, in some embodiments, the limiting bracket 1 also includes a limiting structure 13, which is located on at least one of the bracket body 11 and the base body 12, and is used to achieve the installation positioning of the limiting bracket 1; the limiting structure 13 is at least one of a hole groove structure and a protrusion structure.

[0072] The limiting structure 13 provided on the bracket body 11 and / or the base body 12 of the limiting bracket 1 of this embodiment can realize the limiting fixation of the limiting bracket 1 itself inside the charging gun, and can also realize the limiting fixation of other structures (such as PCBA structure) by using the limiting bracket 1.

[0073] Exemplarily, the limiting structure 13 includes a limiting hole 131 located in the bracket body 11, the axis of the limiting hole 131 is parallel to the axis of the mounting hole 111, and the limiting hole 131 can be plugged into and matched with the corresponding structure in the charging gun housing to achieve axial positioning of the limiting bracket 1 in the charging gun housing.

[0074] In another exemplary embodiment, the limiting structure 13 includes a limiting column 132 located on the base body 12. The limiting column 132 is located on the top surface of the base body 12. The limiting column 132 can be plugged into and matched with the corresponding structure on the PCBA structure to achieve limiting and fixing of the PCBA structure by the limiting bracket 1.

[0075] Combination Figure 3 As shown, in some embodiments, the limiting bracket 1 also includes at least one guide wing 14, one end of at least one guide wing 14 is connected to one side edge of the bracket body 11, and the other end of the guide wing 14 extends in a direction parallel to the axis of the mounting hole 111, and the guide wing 14 and the base body 12 are located on the same side of the bracket body 11.

[0076] By arranging the guide wings 14 on the edge of the bracket body 11, the limiting bracket 1 can be guided and positioned when it cooperates with the cylindrical shell of the charging gun, ensuring that the bracket plate is located in the middle of the cylindrical shell and the axis of the mounting hole 111 is consistent with the plug-in and pull-out direction of the charging gun.

[0077] Exemplarily, there are two guide wings 14 , and the two guide wings 14 are symmetrically arranged on both sides of the bracket body 11 along the horizontal direction.

[0078] On the other hand, combined Figure 4 As shown, this embodiment provides a charging gun, which includes a limiting bracket 1 of the utility model, a shell assembly 4, a circuit board assembly 3 and a connecting terminal 2.

[0079] The housing assembly 4 includes a housing member 41 and a plug member 42, and the plug member 42 and the housing member 41 are arranged front and back along the plugging direction of the charging gun. The circuit board assembly 3 is located in the housing member 41, the limit bracket 1 is located between the housing member 41 and the plug member 42, one end of the connection terminal 2 is connected to the circuit board assembly 3, and the other end of the connection terminal 2 extends through the mounting hole 11 to the plug member 42.

[0080] The charging gun of this embodiment adopts the limiting bracket 1 of the present utility model, and has all the beneficial technical effects of all the embodiments in this document.

[0081] Through the above arrangement, the connection terminal 2 is connected to the circuit board assembly 3 to achieve integrated assembly, and the connection reliability between the connection terminal 2 and the circuit board assembly 3 is higher, which is beneficial to improving the assembly efficiency and product quality of the charging gun.

[0082] Exemplarily, the shell assembly 4 has a first accommodating cavity 401, and the plug component 42 has a second accommodating cavity 402; the limiting bracket 1 is located between the first accommodating cavity 401 and the second accommodating cavity 402; the circuit board assembly 3 is located in the first accommodating cavity 401; one end of the connecting terminal 2 is connected to the circuit board assembly 3, and the other end of the connecting terminal 2 extends through the mounting hole 111 to the second accommodating cavity 402.

[0083] In this embodiment, the circuit board assembly 3 is arranged in the first accommodating cavity 401, and the connecting terminal 2 can extend through the mounting hole 111 of the limiting bracket 1 to the second accommodating cavity 402. The connecting terminal 2 located in the second accommodating cavity 402 is responsible for plugging and unplugging the charging port of the electrical device. During the plugging and unplugging process, the limiting bracket 1 can use the fixing hole portion 1102 to limit and fix the fixing slot 21 of the connecting terminal 2, offset the plugging and unplugging force on the connecting terminal 2, and improve the structural reliability of the connecting terminal 2 in the charging gun.

[0084] Exemplarily, the tail of the connection terminal 2 is connected to the circuit board assembly 3 by welding.

[0085] In another exemplary embodiment, the circuit board assembly 3 includes a circuit board body 31 and a plurality of functional devices 32, wherein the plurality of functional devices 32 are integrated and connected to the circuit board body 31. The functional devices 32 include but are not limited to electronic components, transformer components, control chips, and the like.

[0086] In some embodiments, the connection terminal 2 is at least one of a power terminal and a signal terminal. The power terminal is used to transmit electric energy between the charging gun and the electric device, and the signal terminal is used to transmit electric signals between the charging gun and the electric device.

[0087] Combination Figure 5 and Figure 6 As shown, in some embodiments, the connection terminal 2 includes a power terminal 22 and a signal terminal 23; when the limiting bracket 1 includes a mounting hole 111 and a notch groove 112, the power terminal 22 is connected to the mounting hole 111 correspondingly, and the signal terminal 23 is connected to the notch groove 112 correspondingly.

[0088] In the charging gun of the present embodiment, the power terminal 22 and the signal terminal 23 can be assembled as one piece using the limiting bracket 1, which helps to reduce the difficulty of assembling the charging gun and improve the assembly efficiency.

[0089] Exemplarily, the power terminal 22 is provided with a first slot 221 which is limitedly engaged in the fixing hole portion 1102 of the mounting hole 111 ; the signal terminal 23 is provided with a second slot 231 which is limitedly engaged in the notch groove 112 .

[0090] Combination Figure 5 and Figure 6As shown, in some embodiments, when the limiting bracket 1 includes a base body 12 , the circuit board assembly 3 is located on the base body 12 .

[0091] Through the above arrangement, the base body 12 can be used to limit and fix the circuit board assembly 3, so as to realize the integral limit and fixation of the connection terminal 2 and the circuit board assembly 3.

[0092] On the other hand, the present embodiment provides a charging device, which includes the charging gun of the present invention and a cable 5; the cable 5 is located at the rear end of the charging gun along the plugging direction, and is inserted into the charging gun to be electrically connected to the connection terminal 2.

[0093] Exemplarily, one end of the cable 5 is connected to the charging gun, and the other end is connected to the power supply device, which includes but is not limited to a power supply box, a charging pile, a power generation equipment, a transformer equipment, etc.

[0094] It should be noted that the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, "at least one" means one or more, and "multiple" means two or more, unless otherwise clearly and specifically defined. "Including" or "including" and similar words mean that the elements or objects appearing before "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In the description of this specification, the description with reference to the term "some embodiments" or "exemplarily" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present utility model.

[0095] The above description is only an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A limiting bracket, characterized in that: The limiting bracket (1) is used to fix the connection terminal (2) of the charging gun; the connection terminal (2) has a fixing slot (21); The limiting bracket (1) comprises a bracket body (11), the bracket body (11) has a mounting hole (111), the mounting hole (111) comprises a pre-installed hole portion (1101) and a fixed hole portion (1102) which are connected to each other, the inner diameter of the pre-installed hole portion (1101) is larger than the outer diameter of the connecting terminal (2), and is used for passing the connecting terminal (2); the inner diameter of the fixed hole portion (1102) is smaller than the outer diameter of the connecting terminal (2), and is adapted to the outer diameter of the fixed slot (21), and is used for clamping the fixed slot (21) to fix the connecting terminal (2).

2. The limiting bracket according to claim 1, characterized in that: The fixing hole portion (1102) is located below the pre-installed hole portion (1101).

3. The limiting bracket according to claim 1, characterized in that: The length of the common chord of the pre-installed hole portion (1101) and the fixed hole portion (1102) is smaller than the outer diameter of the fixed slot (21).

4. The limiting bracket according to claim 2, characterized in that: There are a plurality of mounting holes (111), each mounting hole (111) corresponds to one connecting terminal (2); and the plurality of mounting holes (111) are arranged at intervals in a horizontal direction.

5. The limiting bracket according to claim 1, characterized in that: The bracket body (11) further comprises a notch groove (112), wherein the notch groove (112) is located on the edge of the bracket body (11).

6. The limiting bracket according to any one of claims 1 to 5, characterized in that: The limiting bracket (1) also includes a base body (12), one side edge of the base body (12) is connected to the bracket body (11), the surface of the base body (12) is parallel to the axis of the mounting hole (111), and the base body (12) is located on a side of the fixing hole portion (1102) away from the pre-installed hole portion (1101).

7. A charging gun, characterized in that: The charging gun comprises: the limiting bracket (1) according to any one of claims 1 to 6, as well as a housing assembly (4), a circuit board assembly (3) and a connecting terminal (2); The housing assembly (4) comprises a housing component (41) and a plug component (42), wherein the plug component (42) and the housing component (41) are arranged front and back along the plugging direction of the charging gun; The circuit board assembly (3) is located in the shell component (41), the limiting bracket (1) is located between the shell component (41) and the plug component (42), one end of the connecting terminal (2) is connected to the circuit board assembly (3), and the other end of the connecting terminal (2) passes through the mounting hole (111) and extends into the plug component (42).

8. The charging gun according to claim 7, characterized in that: The connection terminal (2) comprises a power terminal (22) and a signal terminal (23); When the limiting bracket (1) comprises a mounting hole (111) and a notch groove (112), the power terminal (22) is connected to the mounting hole (111) correspondingly, and the signal terminal (23) is connected to the notch groove (112) correspondingly.

9. The charging gun according to claim 7 or 8, characterized in that: When the limiting bracket (1) comprises a base body (12), the circuit board assembly (3) is located on the base body (12).

10. A charging device, characterized in that: The charging device comprises a charging gun according to any one of claims 7 to 9, and a cable (5); the cable (5) is located at the rear end of the charging gun along the plugging direction, and is inserted into the charging gun to be electrically connected to the connecting terminal (2).

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