Charging gun switching device and charging equipment

Abstract

The utility model discloses a charging gun switching device and charging equipment. The charging equipment comprises a charging pile body, a charging gun connected with the charging pile body and a charging gun switching device electrically coupled with the charging gun. The charging gun switching device comprises a shell, a first connecting structure, a second connecting structure and a temperature protection structure, wherein the first connecting structure and the second connecting structure are arranged in the shell. The first connection structure and the second connection structure are electrically coupled to form a line unit temperature protection structure which is electrically coupled to the line unit. When the temperature detected by the temperature protection structure is larger than a threshold value, the temperature protection structure and the circuit unit form a short loop, so that the purpose of overheating protection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of adapter and charging equipment, in particular to a kind of charging gun adapter and charging equipment. BACKGROUND

[0002] The battery of the existing electric vehicle needs to be charged to supplement power. Currently, the charging method of electric vehicles mainly includes alternating current charging and direct current charging. Among them, the charging time required for alternating current charging is longer, usually called "slow charging"; the charging time required for direct current charging is shorter, usually called "fast charging".

[0003] However, the existing charging gun device (or charging gun adapter) can easily cause the temperature to rise rapidly and possibly cause a fire during charging if there is poor contact between the charging plug and the charging socket due to the presence of foreign matter (such as metal or hair filaments, etc.), water ingress, or manufacturing tolerances.

[0004] Therefore, the applicant believes that the above defects can be improved, and after careful research and cooperation with the application of scientific principles, a utility model with reasonable design and effective improvement of the above defects is finally proposed. UTILITY MODEL CONTENT

[0005] The utility model embodiment is to provide a kind of charging gun adapter and charging equipment, can effectively improve the defect possibly generated by existing charging equipment.

[0006] One embodiment of the utility model discloses a charging gun adapter, comprising: a housing; a first connection structure disposed in the housing; a second connection structure disposed in the housing, wherein the second connection structure and the first connection structure are electrically coupled to form a circuit unit; and a temperature protection structure electrically coupled to the circuit unit; wherein when the temperature detected by the temperature protection structure is greater than a threshold value, the temperature protection structure and the circuit unit form a short circuit.

[0007] Optionally, the first connection structure includes two first power terminals, a first ground terminal and a first control terminal; wherein the second connection structure includes two second power terminals, a second ground terminal and a second control terminal; wherein the two first power terminals are electrically coupled to the two second power terminals respectively to form two charging circuits, the first ground terminal is electrically coupled to the second ground terminal to form a ground circuit, and the first control terminal is electrically coupled to the second control terminal to form a control circuit.

[0008] Optionally, the circuit unit includes a control circuit and a ground circuit, wherein when the temperature detected by the temperature protection structure is greater than the threshold value, the control circuit and the ground circuit form a short circuit through the temperature protection structure.

[0009] Optionally, the temperature protection structure is disposed adjacent to any position on the two charging lines, wherein the temperature protection structure has two connecting lines, and one of the two connecting lines is electrically coupled to the control line, and the other of the two connecting lines is electrically coupled to the ground line.

[0010] Optionally, the temperature protection structure is disposed between the first connecting structure and the second connecting structure, and located in the middle region of the two charging lines.

[0011] Optionally, the charging gun adapter further comprises a heat conduction sheet having two power supply through holes and a temperature through hole, the two power supply through holes are provided for the two charging lines to pass through, and the temperature through hole is provided for the temperature protection structure to pass through.

[0012] Optionally, the temperature protection structure comprises: a shell; a metal block disposed in the shell, the metal block is electrically coupled to one of the two connecting lines; and a metal spring disposed in the shell, the metal spring is electrically coupled to the other of the two connecting lines.

[0013] Optionally, when the temperature on the two charging lines is greater than a threshold value, the metal spring is deformed by heat to be electrically coupled to the metal block to form a short circuit.

[0014] Optionally, the temperature protection structure comprises: a shell; a first metal sheet disposed in the shell, the first metal sheet is electrically coupled to one of the two connecting lines; and a second metal sheet disposed in the shell, the second metal sheet is electrically coupled to the other of the two connecting lines; wherein, when the temperature on the two charging lines is greater than a threshold value, the first metal sheet and the second metal sheet are deformed by heat to be electrically coupled to each other to form a short circuit.

[0015] Optionally, the charging gun adapter further comprises a positioning structure connected to the shell, the positioning structure comprises: a positioning body; a pivot portion pivoted to the positioning body; a clamping hook located at the end of the positioning body and protruding towards one side of the first connecting structure; and a pressing portion located on the opposite side of the pivot portion from the clamping hook.

[0016] Optionally, the pressing portion can be pressed to move the clamping hook between a clamping position and an unlocking position.

[0017] Optionally, the positioning structure further comprises a resilient portion arranged below the pressing portion to reset the pressing portion.

[0018] The utility model discloses one of the embodiment also discloses a charging equipment, include: a charging stake body, a charging gun is connected charging stake body, a charging gun adapter is electrically coupled the gun head of charging gun, wherein, the charging gun adapter contains: a casing, a first connecting structure is arranged in the casing, a second connecting structure is arranged in the casing, and wherein, the second connecting structure and the first connecting structure are electrically coupled to form a line unit, and a temperature protection structure is electrically coupled line unit, wherein, when the temperature protection structure detects that the temperature is greater than a threshold value, the temperature protection structure and line unit form a short circuit.

[0019] Optionally, the first connecting structure includes two first power terminals, a first ground terminal and a first control terminal; wherein, the second connecting structure includes two second power terminals, a second ground terminal and a second control terminal; wherein, the two first power terminals are electrically coupled to the two second power terminals respectively, to form two charging lines, the first ground terminal is electrically coupled to the second ground terminal, to form a ground line, and the first control terminal is electrically coupled to the second control terminal, to form a control line.

[0020] Optionally, the line unit includes the control line and the ground line, wherein, when the temperature protection structure detects that the temperature is greater than the threshold value, the control line and the ground line form a short circuit through the temperature protection structure.

[0021] Optionally, the temperature protection structure is arranged adjacent to any position on the two charging lines; wherein, the temperature protection structure has two connecting lines, and one of the two connecting lines is electrically coupled to the control line, and the other of the two connecting lines is electrically coupled to the ground line.

[0022] Optionally, the temperature protection structure is arranged between the first connecting structure and the second connecting structure and located in the middle region of the two charging lines.

[0023] Optionally, the charging gun adapter further includes a heat conduction sheet body, the heat conduction sheet body has two power perforations and a temperature perforation, the two power perforations are provided for the two charging lines to pass through, and the temperature perforation is provided for the temperature protection structure to pass through.

[0024] Optionally, the temperature protection structure includes: a shell, a metal block arranged in the shell, the metal block is electrically coupled to one of the two connecting lines, and a metal spring plate arranged in the shell, the metal spring plate is electrically coupled to the other of the two connecting lines.

[0025] Optionally, when the temperature of the two charging lines is greater than the threshold value, the metal spring plate is deformed to be electrically coupled to the metal block to form a short circuit.

[0026] Optionally, the temperature protection structure includes: a housing; a first metal sheet disposed within the housing, the first metal sheet being electrically coupled to one of two connecting wires; and a second metal sheet disposed within the housing, the second metal sheet being electrically coupled to the other of the two connecting wires; wherein, when the temperature of the first metal sheet and the second metal sheet on the two charging lines exceeds a threshold, the first metal sheet and the second metal sheet deform due to heat and become electrically coupled together to form a short circuit.

[0027] Optionally, the charging gun adapter further includes a positioning structure for connecting the housing, comprising: a positioning body; a pivot portion pivotally connected to the positioning body; a hook located at the end of the positioning body, with the hook face protruding towards the side of the first connecting structure; and a pressing portion located on opposite sides of the pivot portion, respectively with the hook.

[0028] Optionally, the pressing part can be pressed so that the latch can move between an engaged position and an unlocked position.

[0029] Optionally, the positioning structure further includes an elastic part disposed below the pressing part for resetting the pressing part.

[0030] In summary, the charging gun adapter and charging equipment disclosed in this utility model embodiment can achieve the purpose of overheat protection by "electrically coupling the temperature protection structure to the circuit unit" and "when the temperature detected by the temperature protection structure is greater than a threshold, the temperature protection structure and the circuit unit form a short circuit".

[0031] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, these descriptions and drawings are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model in any way. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the charging device according to an embodiment of the present utility model.

[0033] Figure 2 This is a three-dimensional structural diagram of the charging gun adapter device according to an embodiment of the present utility model.

[0034] Figure 3 for Figure 2 A front view schematic diagram of the charging gun adapter.

[0035] Figure 4 for Figure 2 The rear view of the charging gun adapter is shown in the figure.

[0036] Figure 5 for Figure 2 A three-dimensional cross-sectional view along the VV section line.

[0037] Figure 6 For Figure 2 Partial perspective sectional view along the VI-VI section line.

[0038] Figure 7 For Figure 6 Partial perspective sectional view of subsequent operation.

[0039] Figure 8 For Figure 5 Sectional view along the VIII-VIII section line.

[0040] Figure 9 For Figure 8 Sectional view of subsequent operation.

[0041] Figure 10 For Figure 5 Sectional view along the VIII-VIII section line.

[0042] Figure 11 For Figure 10 Sectional view of subsequent operation. DETAILED DESCRIPTION

[0043] The following is to illustrate the embodiments of the charging gun switching device and the charging equipment disclosed in the present application by specific embodiments. Those skilled in the art can understand the advantages and effects of the present application from the disclosure. The present application can be implemented or applied by other different embodiments, and each detail in the specification can be modified and changed based on different viewpoints and applications without departing from the concept of the present application. In addition, the drawings of the present application are only simple schematic illustrations, not the actual size description, and the prior declaration is made. The following embodiments will further illustrate the related technical content of the present application in detail, but the disclosed content is not used to limit the protection scope of the present application.

[0044] It should be understood that although the terms "first", "second", "third" and the like can be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein can include any one or more combinations of the associated listed items.

[0045] Please refer to Figures 1 to 11As shown, it is an embodiment of the utility model, the utility model embodiment discloses a charging equipment 100, which can be used to charge an electric vehicle (not shown in the figure). In the process of charging the electric vehicle by the charging equipment 100, the charging equipment 100 can sense whether overheating occurs during the charging process. When the charging equipment 100 senses that overheating occurs, the charging equipment 100 immediately stops charging the electric vehicle to achieve the purpose of overheating protection, thereby avoiding the battery of the electric vehicle from catching fire.

[0046] It should be noted that, in order to facilitate understanding of the embodiment, the drawings only present a specific structure of the charging equipment 100, so as to clearly present the component structure and connection relationship of the charging equipment 100, but the utility model is not limited by the drawings. The components of the charging equipment 100 and their connection relationship will be introduced respectively below.

[0047] As shown in the figure, Figures 1 to 3 The charging equipment 100 includes a charging pile body 1, a charging gun 2 connected to the charging pile body 1 and a charging gun adapter 3 electrically coupled to the charging gun 2. The charging pile body 1 is mainly a device for providing battery charging for plug-in electric vehicles (such as pure electric vehicles or plug-in hybrid vehicles).

[0048] Furthermore, the charging pile body 1 can provide direct current charging and alternating current charging. When the charging pile body 1 can provide direct current charging, the charging pile body 1 can charge the electric vehicle quickly; when the charging pile body 1 can provide alternating current charging, the charging pile body 1 can charge the electric vehicle slowly. The detailed structure and function of the charging pile body 1 are well known to those skilled in the art, and will not be described here.

[0049] The charging gun 2 includes a charging connection line 21 and a gun head 22 located on opposite sides. The charging connection line 21 has two ends located on opposite sides. One end of the charging connection line 21 is electrically coupled to the charging pile body 1, and the other end of the charging connection line 21 is electrically coupled to the charging gun 2. The charging connection line 21 is mainly used for power transmission and signal transmission, which is well known to those skilled in the art, and will not be described here.

[0050] The gun head 22 is mainly connected to a charging socket (not shown in the figure) of the electric vehicle, so that the electric power provided by the charging pile body 1 charges the electric vehicle through the charging connection line 21 and the gun head 22. It should be noted that in order for the gun head 22 to be connected to the charging socket of the electric vehicle, the gun head 22 and the charging socket need to conform to the corresponding charging connection specifications. Among them, the charging connection specifications corresponding to the gun head 22 and the charging socket can be roughly divided into a first type (Type 1), a second type (Type 2), a North American charging standard (NACS), a first combined charging system (Combined Charging System 1, CCS1) and a second combined charging system (Combined Charging System 2, CCS2).

[0051] The charging gun adapter 3 is electrically coupled to the gun head 22 of the charging gun 2. It should be noted that when the charging connection specification of the gun head 22 of the charging gun 2 is different from the charging connection specification of the charging socket, the charging gun adapter 3 is connected to the gun head 22 of the charging gun 2, so that the charging gun 2 can be connected to the charging socket of the electric vehicle through the charging gun adapter 3, but the utility model is not limited thereto.

[0052] It should be noted that in the present embodiment, the adapter type of the charging gun adapter 3 can be the North American charging standard converting the first type or the first type converting the North American charging standard, but the utility model is not limited thereto. For example, the adapter type of the charging gun adapter 3 can also be the North American charging standard converting the North American charging standard, or the charging gun adapter 3 can be designed according to actual needs.

[0053] As shown in Figures 2 to 5 The charging gun adapter 3 includes a housing 31, a positioning structure 32 arranged in the housing 31, a first connection structure 33 arranged in the housing 31, a second connection structure 34 arranged in the housing 31 and a temperature protection structure 35.

[0054] When the charging gun adapter 3 is connected to the charging socket of the electric vehicle, the positioning structure 32 is fixed to the charging socket, so that the charging gun adapter 3 is fixed to the charging socket.

[0055] Specifically, as shown in Figure 6 and Figure 7As shown, the positioning structure 32 includes a positioning body 321, a pivot portion 322 pivotally connected to the positioning body 321, a hook 323 disposed on the positioning body 321, a pressing portion 324 disposed on the positioning body 321, and an elastic portion 325 disposed on the pressing portion 324. The pivot portion 322 is disposed in the middle region of the positioning body 321 and is located on the side of the positioning body 321 facing the housing 31, so that the positioning body 321 can rotate upward or downward about the pivot portion 322 as an axis.

[0056] The hook 323 is located at the end of the positioning body 321 and protrudes towards the side of the first connecting structure 33, so that when the charging gun adapter 3 is connected to the charging socket of the electric vehicle, the hook 323 engages with the charging socket.

[0057] The pressing part 324 and the latch 323 are respectively located on opposite sides of the pivot part 322. The pressing part 324 can be pressed to make the latch 323 be in an engaged position (e.g., Figure 6 (as shown) and an unlock position (such as) Figure 7 The device moves between the points shown in the diagram. Specifically, when the pressing part 324 is not pressed, the latch 323 is in the engaged position to secure it to the charging socket. When the pressing part 324 is pressed, it can rotate downwards about the pivot part 322, while the latch 323 relatively rotates upwards about the pivot part 322 to the unlocked position, thus disengaging from the charging socket.

[0058] The elastic portion 325 is disposed below the pressing portion 324 to allow the pressing portion 324 to reset. Specifically, when the pressing portion 324 is pressed, the elastic portion 325 is compressed by the pressing portion 324 (e.g., Figure 7 (as shown); after the pressing part 324 is pressed to unpressed, the elastic part 325 returns to its original position upwards, so that the pressing part 324 returns to its original position (as shown). Figure 6 (As shown).

[0059] like Figures 2 to 5 As shown, the first connection structure 33 can connect to the charging socket of the electric vehicle, so that the charging pile 1 can charge the electric vehicle. In this embodiment, the first connection structure 33 includes two first power terminals 331, a first ground terminal 332, a first control terminal 333, and a first charging status terminal 334. The two first power terminals 331 provide power to the charging pile 1 (e.g., ...). Figure 1The power outputted by the first power terminals 331 and the second power terminals 341 is transmitted to the electric vehicle through the two charging lines, so that the charging pile body 1 charges the electric vehicle.

[0060] The first control terminal 333 provides a communication channel between the charging pile body 1 and the electric vehicle, so that the charging pile body 1 and the electric vehicle transmit control signals through the first control terminal 333.

[0061] The first charging state terminal 334 is used for monitoring and transmitting the state information of the electric vehicle in the charging process (for example, whether the charging pile body 1 and the electric vehicle are charging, charging is completed, or an abnormal situation).

[0062] The second connection structure 34 is located on the opposite side of the first connection structure 33 of the shell 31. In this embodiment, the second connection structure 34 connects the gun head 22 of the charging gun 2, so as to convert the charging connection specification of the charging gun 2. The second connection structure 34 and the first connection structure 33 are electrically coupled to form a line unit 37. The second connection structure 34 includes two second power terminals 341, a second ground terminal 342, a second control terminal 343, and a second charging state terminal 344.

[0063] The two second power terminals 341 are respectively electrically coupled to the two first power terminals 331, so as to form two charging lines. The two charging lines transmit power to the electric vehicle for charging. The second ground terminal 342 is electrically coupled to the first ground terminal 332, so as to form a ground line 371.

[0064] The second control terminal 343 is electrically coupled to the first control terminal 333, so as to form a control line 372. The control line 372 provides a communication channel between the charging pile body 1 and the electric vehicle, so that the charging pile body 1 and the electric vehicle transmit control signals through the control line 372.

[0065] The second charging state terminal 344 is electrically coupled to the first charging state terminal 334, so as to form a charging state line. The charging state line is used for monitoring and transmitting the state information of the electric vehicle in the charging process (for example, whether the charging pile body 1 and the electric vehicle are charging, charging is completed, or an abnormal situation).

[0066] It should be noted that the line unit 37 includes the control line 372 and the ground line 371, but the utility model is not limited thereto. For example, the line unit 37 can include the charging state line and the ground line 371 according to actual design requirements.

[0067] As Figures 2 to 5 shown, the temperature protection structure 35 is electrically coupled to the line unit 37 (i.e., the ground line 371 and the control line 372) to form an open loop. When the temperature detected by the temperature protection structure 35 is greater than a threshold value, the temperature protection structure 35 and the line unit 37 form a short circuit. Specifically, the temperature protection structure 35 is arranged at any position adjacent to the two charging lines on the shell 31 to sense the temperature generated by the two charging lines. In detail, the temperature protection structure 35 can be arranged between the first connecting structure 33 and the second connecting structure 34 and located in the middle region of the two charging lines to accurately sense the temperature generated by the two charging lines, but the present application is not limited thereto. For example, the arrangement position of the temperature protection structure 35 can be adjusted according to actual design requirements.

[0068] In the present embodiment, the charging gun adapter 3 further comprises a heat conduction sheet 36. The heat conduction sheet 36 is fixedly arranged on the shell 31, and the heat conduction sheet 36 has two power supply through holes PTH and a temperature through hole TTH. The two power supply through holes PTH are respectively provided for the two charging lines to pass through, and the temperature through hole TTH is provided for the temperature protection structure 35 to pass through.

[0069] In practice, the material of the heat conduction sheet 36 is metal, the two power supply through holes PTH pass through the two charging lines, and the temperature through hole TTH passes through the temperature protection structure 35, so that the temperature protection structure 35 can sense the temperature generated by the two charging lines through the heat conduction sheet 36, but the present application is not limited thereto. For example, the heat conduction sheet 36 can be changed or omitted according to actual design requirements.

[0070] The temperature protection structure 35 has two connecting lines CW1, CW2 in the present embodiment, and one of the two connecting lines CW1, CW2 is electrically coupled to the control line 372; the other of the two connecting lines CW1, CW2 is electrically coupled to the ground line 371. When the temperature on the two charging lines is less than the threshold value, the temperature protection structure 35, the ground line 371 and the control line 372 form the open loop. That is, the ground line 371 and the control line 372 are not electrically coupled to each other through the temperature protection structure 35. At this time, the charging gun 2 of the charging pile body 1 can normally charge the electric vehicle through the two charging lines of the charging gun adapter 3.

[0071] When the temperature on the two charging lines is greater than the threshold, the temperature protection structure 35 forms the short circuit between the ground line 371 and the control line 372. That is, the ground line 371 and the control line 372 are electrically coupled to each other through the temperature protection structure 35. At this time, the charging gun 2 of the charging pile body 1 stops charging the electric vehicle, so as to achieve the purpose of overheat protection.

[0072] As shown in Figure 5 , Figure 8 and Figure 9 , the temperature protection structure 35 comprises a shell 351, a metal block 352 arranged in the shell 351, and a metal spring 353 arranged in the shell 351. In the embodiment, the metal block 352 is fixedly arranged in the shell 351, and the metal block 352 is electrically coupled to one of the two connection lines CW1 and CW2. The metal spring 353 is electrically coupled to the other of the two connection lines CW1 and CW2. When the temperature on the two charging lines is less than the threshold, the metal spring 353 and the metal block 352 are not electrically coupled to each other (as shown in Figure 8 ), so that the charging gun 2 of the charging pile body 1 can normally charge the electric vehicle through the two charging lines of the charging gun adapter 3.

[0073] When the temperature on the two charging lines is greater than the threshold, the metal spring 353 is electrically coupled to the metal block 352 due to thermal deformation, so as to form the short circuit (as shown in Figure 9 ). That is, the metal spring 353 is electrically coupled to the metal block 352, so that the ground line 371 and the control line 372 are electrically coupled to each other. At this time, the charging gun 2 of the charging pile body 1 stops charging the electric vehicle, so as to achieve the purpose of overheat protection.

[0074] As shown in Figures 10 to 11 , it is the second embodiment of the temperature protection structure 35 of the utility model. Since the embodiment is similar to the temperature protection structure 35 of the above-mentioned first embodiment, the same parts of the two embodiments will not be described again, and the differences between the embodiment and the above-mentioned first embodiment are described as follows:

[0075] The temperature protection structure 35 of this embodiment includes a first metal sheet 354 and a second metal sheet 355. The first metal sheet 354 is disposed within the housing 351. The first metal sheet 354 is electrically coupled to one of the two connecting lines CW1 and CW2. In this embodiment, when the first metal sheet 354 senses a temperature greater than the threshold, the first metal sheet 354 deforms.

[0076] The second metal sheet 355 is disposed within the housing 351. The second metal sheet 355 is electrically coupled to another connection line CW2 of the two connection lines CW1 and CW2. In this embodiment, the second metal sheet 355 can sense a temperature greater than the threshold, and the second metal sheet 355 deforms.

[0077] As described above, when the temperatures of the first metal sheet 354 and the second metal sheet 355 on the two charging lines exceed the threshold, the first metal sheet 354 and the second metal sheet 355 deform due to heat and become electrically coupled together to form the short circuit. That is, the first metal sheet 354 is electrically coupled to the second metal sheet 355, so that the grounding line 371 and the control line 372 are electrically coupled together. At this time, the charging gun 2 of the charging pile 1 stops charging the electric vehicle to achieve overheat protection.

[0078] [Technical Effects of the Embodiments of this Utility Model]

[0079] In summary, the charging gun adapter and charging equipment disclosed in this utility model embodiment can achieve overheat protection by using a "temperature protection structure electrical coupling circuit unit" and "when the temperature detected by the temperature protection structure is greater than a threshold, the temperature protection structure will change from an open circuit to a short circuit".

[0080] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the patent scope of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the patent scope of the present utility model.

Claims

1. A charging gun adapter device, characterized in that, The charging gun adapter comprises: a housing; a first connection structure disposed in the housing; a second connection structure disposed in the housing, wherein the second connection structure is electrically coupled with the first connection structure to form a circuit unit; and a temperature protection structure electrically coupled with the circuit unit; wherein when the temperature detected by the temperature protection structure is greater than a threshold value, the temperature protection structure and the circuit unit form a short circuit.

2. The charging gun adapter of claim 1, wherein, The first connection structure includes two first power terminals, a first ground terminal and a first control terminal; wherein the second connection structure includes two second power terminals, a second ground terminal and a second control terminal; wherein the two first power terminals are respectively electrically coupled with the two second power terminals to form two charging lines, the first ground terminal is electrically coupled with the second ground terminal to form a ground line, and the first control terminal is electrically coupled with the second control terminal to form a control line.

3. The charging gun adapter of claim 2, wherein, The circuit unit includes the control line and the ground line, wherein when the temperature detected by the temperature protection structure is greater than the threshold value, the control line and the ground line form the short circuit through the temperature protection structure.

4. The charging gun adapter of claim 2, wherein, The temperature protection structure is disposed adjacent to any position on the two charging lines: wherein the temperature protection structure has two connection lines, and one of the two connection lines is electrically coupled with the control line, and the other of the two connection lines is electrically coupled with the ground line.

5. The charging gun adapter of claim 2, wherein, The temperature protection structure is disposed between the first connection structure and the second connection structure and located in the middle region of the two charging lines.

6. The charging gun adapter of claim 2, wherein, The charging gun adapter further comprises a heat-conducting sheet body, the heat-conducting sheet body has two power perforations and a temperature perforation, the two power perforations are provided for the two charging lines to pass through, and the temperature perforation is provided for the temperature protection structure to pass through.

7. The charging gun adapter of claim 4, wherein, The temperature protection structure comprises: a housing; a metal block disposed in the housing, the metal block is electrically coupled with one of the two connection lines; and a metal spring sheet disposed in the housing, the metal spring sheet is electrically coupled with the other of the two connection lines.

8. The charging gun adapter of claim 7, wherein, When the temperature on the two charging lines is greater than the threshold value, the metal spring sheet is deformed by heat to be electrically coupled with the metal block to form the short circuit.

9. The charging gun adapter of claim 4, wherein, The temperature protection structure comprises: a housing; a first metal sheet disposed in the housing, the first metal sheet is electrically coupled with one of the two connection lines; and a second metal sheet disposed in the housing, the second metal sheet is electrically coupled with the other of the two connection lines; wherein the first metal sheet and the second metal sheet are deformed by heat to be electrically coupled with each other to form the short circuit when the temperature on the two charging lines is greater than the threshold value. The charging gun adapter further comprises a positioning structure connected to the housing, which comprises:

10. The charging gun adapter of claim 1, wherein, a positioning body; ​ a pivot portion pivotally connected to the positioning body; a clamping hook protruding from a side of the first connecting structure; and a pressing portion located on opposite sides of the pivot portion relative to the clamping hook.

11. The charging gun adapter of claim 10, wherein, The pressing portion can be pressed to move the clamping hook between a clamping position and an unlocking position.

12. The charging gun adapter of claim 10, wherein, The positioning structure further includes a resilient portion arranged below the pressing portion to reset the pressing portion.

13. A charging device, characterized by The charging device includes: a charging pile body; a charging gun connected to the charging pile body; a charging gun adapter electrically coupled to a gun head of the charging gun; wherein the charging gun adapter includes: a housing; a first connecting structure arranged in the housing; a second connecting structure arranged in the housing, wherein the second connecting structure is electrically coupled to the first connecting structure to form a circuit unit; and a temperature protection structure electrically coupled to the circuit unit; wherein when the temperature detected by the temperature protection structure is greater than a threshold value, the temperature protection structure and the circuit unit form a short circuit.

14. The charging apparatus according to claim 13, characterized by, The first connecting structure includes two first power terminals, a first ground terminal, and a first control terminal; wherein the second connecting structure includes two second power terminals, a second ground terminal, and a second control terminal; wherein the two first power terminals are respectively electrically coupled to the two second power terminals to form two charging circuits, the first ground terminal is electrically coupled to the second ground terminal to form a ground circuit, and the first control terminal is electrically coupled to the second control terminal to form a control circuit.

15. The charging apparatus according to claim 14, characterized by, The circuit unit includes the control circuit and the ground circuit, wherein when the temperature detected by the temperature protection structure is greater than the threshold value, the control circuit and the ground circuit form the short circuit through the temperature protection structure.

16. The charging apparatus according to claim 14, characterized by, The temperature protection structure is arranged adjacent to any position on the two charging circuits; wherein the temperature protection structure has two connecting lines, and one of the two connecting lines is electrically coupled to the control circuit, and the other of the two connecting lines is electrically coupled to the ground circuit.

17. The charging apparatus of claim 14, wherein, The temperature protection structure is arranged between the first connecting structure and the second connecting structure and located in the middle region of the two charging circuits.

18. The charging apparatus of claim 14, wherein, The charging gun adapter further includes a heat-conducting sheet having two power perforations and a temperature perforation, the two power perforations are provided for the two charging circuits, and the temperature perforation is provided for the temperature protection structure.

19. The charging apparatus of claim 16, wherein, The temperature protection structure includes: a housing; a metal block arranged in the housing, the metal block is electrically coupled to one of the two connecting lines; and a metal spring plate arranged in the housing, the metal spring plate is electrically coupled to the other of the two connecting lines.

20. The charging apparatus according to claim 19, wherein, When the temperature on the two charging circuits is greater than the threshold value, the metal spring plate is deformed by heat to be electrically coupled to the metal block to form the short circuit.

21. The charging apparatus of claim 16, wherein, The temperature protection structure includes: a housing; a first metal sheet disposed in the housing, the first metal sheet electrically coupled to one of the two connection lines; and a second metal sheet disposed in the housing, the second metal sheet electrically coupled to the other of the two connection lines; wherein, when the temperature on the two charging lines is greater than the threshold value, the first metal sheet and the second metal sheet are deformed by heat and electrically coupled to each other to form the short circuit.

22. The charging apparatus of claim 13, wherein, The charging gun adapter further includes a positioning structure connected to the housing, which includes: a positioning body; a pivot portion pivotally connected to the positioning body; a hook located at an end of the positioning body and protruding from a side of the first connection structure; and a pressing portion located on opposite sides of the pivot portion from the hook.

23. The charging apparatus according to claim 22, characterized by, The pressing portion can be pressed to move the hook between a latching position and an unlocking position.

24. The charging apparatus according to claim 22, wherein, The positioning structure further includes a resilient portion disposed below the pressing portion to reset the pressing portion.

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