Charging gun and charging equipment

Abstract

The utility model discloses a charging gun, and belongs to the technical field of electrics. The charging gun comprises an equipment shell, a first port, a heating assembly and a gun lock assembly, wherein the first port, the heating assembly and the gun lock assembly are located in the equipment shell. Wherein the heating assembly is located outside the gun lock assembly and makes contact with the gun lock assembly, the heating assembly is electrically connected with the power source through the first port, and when the temperature of the charging gun is low, the heating assembly can convert electric energy output by the power source into heat energy so that heat can be generated through the heating assembly to heat the gun lock assembly; therefore, the gun lock assembly can work normally under the low-temperature condition, and the applicability of the charging gun is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a charging gun and a charging device. Background Art

[0002] At present, due to the widespread use of electric vehicles, connection devices for conductive charging of electric vehicles are also provided under some complex climatic conditions to meet the charging requirements of electric vehicles.

[0003] As part of the connection device used for conducting charging of electric vehicles, the charging gun needs to withstand frequent use and operation by users. Therefore, the charging gun becomes the key factor affecting the charging functionality and reliability.

[0004] However, the above charging gun cannot be used normally in a harsh environment (such as a low temperature environment), resulting in an inability to supply power to the electric vehicle. Utility Model Content

[0005] The embodiment of the utility model provides a charging gun and a charging device. The technical solution is as follows:

[0006] According to one aspect of the utility model, a charging gun is provided, the charging gun comprising a device housing and a first port located in the device housing, a heating component and a gun lock component;

[0007] The first port is electrically connected to the heating component, and the first port is also electrically connected to a power source;

[0008] The heating component is located between the gun lock component and the inner wall of the device housing, and the heating component is in contact with the gun lock component.

[0009] Optionally, the charging gun further comprises an electrically connected thermistor and a temperature comparator, wherein the thermistor is located on a side of the heating film away from the gun lock assembly;

[0010] The heating assembly includes an electrically connected heating film and a first switch, wherein the heating film is in contact with the gun lock assembly, and the first switch has a control end, an input end, and an output end, wherein the control end is electrically connected to the temperature comparator, the input end is electrically connected to the power supply, and the output end is electrically connected to the heating film.

[0011] Optionally, the gun lock assembly includes an electronic locking structure and a mechanical locking structure connected;

[0012] The electronic locking structure comprises a first housing, a driving element and a first locking rod, wherein the driving element is located in the first housing, the first housing has a first through hole, the first locking rod is located in the first housing and connected to the driving element, and the first locking rod extends out of the first housing through the first through hole;

[0013] The first locking rod is configured to move between a first position and a second position under the drive of the driving element. When the first locking rod is at the first position, the first locking rod abuts against the mechanical locking structure. When the first locking rod is at the second position, the first locking rod is separated from the mechanical locking structure.

[0014] The heating film covers a portion of the surface of the first shell.

[0015] Optionally, the heating film surrounds the first shell along a first direction, and the first direction is a direction perpendicular to a moving direction of the first locking rod.

[0016] Optionally, the heating assembly further includes a thermally conductive adhesive, the thermally conductive adhesive is located between the heating film and the first shell, and the thermally conductive adhesive is bonded to the heating film and the first shell respectively.

[0017] Optionally, the heating assembly further comprises a first stretch film, and the device housing comprises a handle portion and a receiving portion;

[0018] The handle portion has a first inner cavity, the accommodating portion has a second inner cavity, and the first inner cavity and the second inner cavity are connected;

[0019] The first extension film is connected to the heating film, the heating film is located in the second inner cavity, and the first extension film is located in the first inner cavity.

[0020] Optionally, the heating assembly further comprises a second extension film, the device housing comprises a gun head, and the mechanical locking structure comprises a mechanical lock head;

[0021] The gun head has a third inner cavity, the mechanical lock is located in the second inner cavity of the gun head, and the third inner cavity is connected to the second inner cavity;

[0022] The second extension film is connected to the heating film, and the second extension film is located in the third inner cavity.

[0023] Optionally, the charging gun further includes a power terminal and a power line, the power line is connected to the power source, the power terminal is connected to the power line, and the thermistor is located at the connection position between the power terminal and the power line;

[0024] One end of the second stretch film away from the heating film is located at the connection position, and a gap is provided between the second stretch film and the thermistor.

[0025] Optionally, the first stretch film and the second stretch film are both an integral structure with the heating film;

[0026] Alternatively, both the first stretched film and the second stretched film are heat-conducting structures.

[0027] Optionally, the heating film comprises a stacked first encapsulation layer, a first adhesive layer, a heating layer, a second adhesive layer and a second encapsulation layer, wherein the heating layer comprises a metal conductive mesh.

[0028] According to another aspect of the present invention, a charging device is provided, the charging device comprising a pile body and a charging gun connected to the pile body, the charging gun being the above-mentioned charging gun.

[0029] The beneficial effects brought by the technical solution provided by the embodiment of the utility model include at least:

[0030] A charging gun is provided, comprising a device housing and a first port located in the device housing, a heating component and a gun lock component. The heating component is in contact with the gun lock component, and the heating component is electrically connected to a power source through the first port. When the temperature of the charging gun is low, the heating component can convert the electric energy output by the power source into heat energy, so as to generate heat through the heating component to heat the gun lock component, thereby enabling the gun lock component to work normally under low temperature conditions, solving the problem in the related art that the charging gun cannot supply power to the electric vehicle under low temperature conditions, and improving the applicability of the charging gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 It is a structural schematic diagram of a charging gun provided by an embodiment of the utility model;

[0033] Figure 2 yes Figure 1 A schematic diagram of the structure of the charging gun from another perspective is shown;

[0034] Figure 3 yes Figure 2 The schematic diagram of the cross-sectional structure of the charging gun along the position A1-A2 shown;

[0035] Figure 4 This is a circuit connection diagram of a heating component provided by an embodiment of the utility model;

[0036] Figure 5 This is a circuit connection diagram of another heating component provided by an embodiment of the utility model;

[0037] Figure 6 It is a structural schematic diagram of another charging gun provided by an embodiment of the utility model;

[0038] Figure 7 It is a structural schematic diagram of an electronic locking structure and a heating film provided by an embodiment of the utility model;

[0039] Figure 8 It is a structural schematic diagram of another charging gun provided by an embodiment of the utility model;

[0040] Fig. 9 It is a structural schematic diagram of another charging gun provided by an embodiment of the utility model;

[0041] Fig.10 It is a structural schematic diagram of another electronic locking structure and a heating film provided by an embodiment of the utility model;

[0042] Fig.11 It is a structural schematic diagram of an electronic locking structure and a heating component provided by an embodiment of the utility model;

[0043] Fig.12 It is a structural schematic diagram of an electronic locking structure and a heating component provided by an embodiment of the utility model;

[0044] Fig.13 It is a structural schematic diagram of another charging gun provided by an embodiment of the utility model;

[0045] Fig.14 yes Fig.13 A schematic diagram of the structure of the heating film in the charging gun shown;

[0046] Fig.15 It is a structural schematic diagram of another charging gun provided by an embodiment of the utility model;

[0047] Fig.16 This is a schematic diagram of the connection between a power terminal and a power line provided by an embodiment of the utility model;

[0048] Fig.17 It is a schematic diagram of the structure of another heating film provided by an embodiment of the utility model;

[0049] Fig.18 It is a schematic structural diagram of another heating film provided in an embodiment of the utility model.

[0050] 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

[0051] 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.

[0052] The charging connection device refers to a component or device used to connect an electric vehicle to an electric vehicle charging device (or an external power source) to achieve electric energy replenishment of the electric vehicle through the charging connection device. The charging connection device includes components such as an electric vehicle charging device or an external power source, a power supply socket, a power supply plug, a charging cable, and a charging gun. Among them, the charging gun refers to a component that is inserted into the vehicle interface of an electric vehicle to charge the battery of the electric vehicle. Its function is to connect the electric vehicle charging device and the electric vehicle to transmit electricity from the electric vehicle charging device to the battery of the electric vehicle. The charging gun can also be called a vehicle plug or a charging plug.

[0053] Due to the widespread use of electric vehicles, charging connection devices for conductive charging of electric vehicles are also provided under some complex climatic conditions to meet the charging requirements of electric vehicles. As part of the connection device for conductive charging of electric vehicles, the charging gun needs to withstand frequent use and operation by users, so the reliability of the charging gun is more important. The charging gun may have a gun lock assembly, which may also be called a locking device. The function of the gun lock assembly is to ensure that the charging gun and the vehicle interface remain in the normal connection position during the charging process, and to prevent the electrical connection between the charging gun and the vehicle interface from being accidentally disconnected. During the use of the charging gun, the charging gun can only supply power to the vehicle normally when the gun lock assembly is in a locked state.

[0054] When the working environment of the charging gun located outdoors is relatively harsh, such as encountering a blizzard, water vapor in the external environment can enter the charging gun through the gaps on the charging gun and condense into ice at a lower ambient temperature (for example, in an environment with a temperature below 0 degrees), causing the gun lock component in the charging gun to fail to work normally, and thus causing the charging gun to be unable to supply power to the electric vehicle.

[0055] The utility model provides a charging gun, which can solve the problems existing in the above-mentioned related technologies.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1is a schematic diagram of the structure of a charging gun 10 provided in an embodiment of the utility model. Figure 2 yes Figure 1 The schematic structural diagram of the charging gun 10 from another perspective is shown. Figure 3 yes Figure 2 The cross-sectional structure diagram of the charging gun 10 along the position A1-A2 is shown. The charging gun 10 may include a device housing 11 and a first port (not shown in the figure) located in the device housing 11, a heating component 12 and a gun lock component 13. Figure 3 Only part of the structure of the charging gun 10 is shown in the figure, so as to more clearly show the structure of the gun lock assembly 13.

[0057] The first port can be electrically connected to the heating component 12, and the first port is also electrically connected to a power source, which can be an electric vehicle charging device or an external power source, and the electric vehicle charging device can be called a charging pile. The heating component 12 can be electrically connected to the electric vehicle charging device through the first port, so that the electric vehicle charging device supplies power to the heating component 12, so that the heating component 12 converts the electrical energy output by the electric vehicle charging device into thermal energy to generate heat.

[0058] The heating component 12 may be located between the gun lock component 13 and the inner wall of the device housing 11, and the heating component 12 may be in contact with the gun lock component 13. When the gun lock component 13 is in a low temperature state, the gun lock component 13 is difficult to start or even cannot work. At this time, the heating component 12 may convert the electrical energy output by the electric vehicle charging device into thermal energy, so as to generate heat through the heating component 12 to heat the gun lock component 13. The heating component 12 may continue to heat the gun lock component 13 until the gun lock component 13 can work normally.

[0059] In summary, the embodiment of the utility model provides a charging gun, including a device housing and a first port located in the device housing, a heating component and a gun lock component. The heating component is located outside the gun lock component and contacts the gun lock component. The heating component is electrically connected to the power supply through the first port. When the temperature of the charging gun is low, the heating component can convert the electric energy output by the power supply into thermal energy, so as to generate heat through the heating component to heat the gun lock component, so that the gun lock component can work normally under low temperature conditions, which solves the problem in the related art that the charging gun cannot supply power to the electric vehicle under low temperature conditions, and improves the applicability of the charging gun.

[0060] Please refer to Figure 4 , Figure 4It is a circuit connection diagram of a heating component provided by an embodiment of the utility model. In an optional implementation, the charging gun 10 may also include an electrically connected thermistor 14 and a temperature comparator 15. The thermistor 14 is located on the side of the heating film 121 away from the gun lock assembly 13. The thermistor 14 is a sensor resistor. The resistance value of the thermistor 14 changes with the change of temperature. According to the temperature coefficient, it is divided into a positive temperature coefficient thermistor 14 (English: Positive Temperature Coefficient thermistor; abbreviated: PTC thermistor) and a negative temperature coefficient thermistor 14 (English: Negative Temperature Coefficient thermistor; abbreviated: NTCthermistor). The resistance value of the positive temperature coefficient thermistor 14 increases with the increase of temperature, and the resistance value of the negative temperature coefficient thermistor 14 decreases with the increase of temperature.

[0061] The temperature comparator 15 may include two input terminals and one output terminal. The temperature comparator 15 is an electronic component that outputs different levels at the output terminal by comparing the magnitude of the current or voltage at the two input terminals. Exemplarily, the temperature comparator 15 has two input terminals, namely a positive input terminal and a negative input terminal. One of the input terminals can be selected as a reference point for comparison. For example, the negative input terminal is selected as the reference point. The thermistor 14 can be electrically connected to the positive input terminal. When the voltage at the positive input terminal is less than the voltage at the input terminal, the output terminal outputs a first level. When the voltage at the positive input terminal is greater than the voltage at the input terminal, the output terminal outputs a second level. The magnitude of the voltage at the input terminal of the temperature comparator 15 can be used to represent the corresponding two temperature values ​​that need to be compared. The output level generated by the temperature comparator 15 can be used to represent the magnitude relationship between the two temperature values.

[0062] Exemplarily, the temperature comparator 15 may also be electrically connected to a power source so that the power source supplies power to the temperature comparator 15. Alternatively, the charging gun 10 may further include a control board, and the temperature comparator 15 may also be integrated on the control board. The temperature comparator 15 may control the turning on or off of the heating component 12 based on the resistance value of the thermistor 14. The thermistor 14 may measure the temperature of the gun lock assembly 13 in real time or at a preset time point to detect the temperature of the gun lock assembly 13. When the thermistor 14 detects that the temperature of the gun lock assembly 13 is greater than the threshold temperature, the temperature comparator 15 may output a first level to turn off the heating component 12. When the thermistor 14 detects that the temperature of the gun lock assembly 13 is less than or equal to the threshold temperature, the thermistor 14 outputs a second level to turn on the heating component 12. That is, the thermistor 14 and the temperature comparator 15 can compare the real-time temperature of the gun lock assembly 13 with the threshold temperature according to the detected real-time temperature. When the real-time temperature is less than the threshold temperature, it can be considered that the gun lock assembly 13 is in a low temperature state. When the gun lock assembly 13 is in a low temperature state, the gun lock assembly 13 is difficult to start or even cannot work. At this time, the temperature comparator 15 can output the second level to turn on the heating component 12, and the heating component 12 converts the electrical energy output by the power supply into thermal energy, so that the heating component 12 generates heat to heat the gun lock assembly 13. The heating component 12 can continue to heat the gun lock assembly 13 until the thermistor 14 and the temperature comparator 15 detect that the temperature of the gun lock assembly 13 is greater than the threshold temperature, and then output the first level to turn off the heating component 12, so that the heating component 12 stops generating heat, and then stops heating the gun lock assembly 13. In this way, the gun lock assembly 13 can work normally under low temperature conditions. Exemplarily, the threshold temperature can be 0 degrees.

[0063] like Figure 3 and Figure 4 As shown, the heating assembly 12 may include an electrically connected heating film 121 and a first switch 122. The heating film 121 may be attached to the gun lock assembly 13. The first switch 122 may have a control end 1221, an input end 1222 and an output end 1223. The control end 1221 may be electrically connected to the temperature comparator 15, the input end 1222 may be electrically connected to the power supply, and the output end 1223 may be electrically connected to the heating film 121.

[0064] The heating film 121 may include at least one of a metal electric heating film, an inorganic electric heating film (including a carbon fiber electric heating film, an ink electric heating film, etc.) and a polymer electric heating film, and the heating film 121 may convert electrical energy into thermal energy. Exemplarily, the heating film 121 may include a ceramic heating sheet, a PTC heating sheet, a graphite heating sheet, a carbon fiber heating sheet, a silicone heating sheet, a mica heating sheet, a PET electric heating film heating sheet, etc.

[0065] The first switch 122 may include a metal oxide semiconductor field effect transistor (MOSFET), which may be divided into two types, "N-type" and "P-type", according to the polarity of the metal oxide semiconductor field effect transistor, and may be referred to as an NMOS transistor and a PMOS transistor. The control terminal 1221 may be a gate of the first switch 122, and the input terminal 1222 and the output terminal 1223 may be a source and a drain of the first switch 122, respectively.

[0066] The first switch 122 can be turned off when receiving the first level output by the temperature comparator 15, that is, the temperature comparator 15 can output the first level to the control end 1221 of the first switch 122, and the control end 1221 of the first switch 122 is loaded with the first level, so that the input end 1222 and the output end 1223 of the first switch 122 are turned off, so that the conductive path between the power supply and the heating film 121 is in a disconnected state, and the heating film 121 cannot generate heat. It can prevent the heating film 121 from heating the gun lock assembly 13 when the ambient temperature of the gun lock assembly 13 is high or the temperature of the gun lock assembly 13 itself is high. Exemplarily, the first switch 122 is an NMOS tube, and the first level can be a low level.

[0067] The first switch 122 is turned on when receiving the second level, that is, the temperature comparator 15 can output the second level to the control end 1221 of the first switch 122, and the control end 1221 of the first switch 122 is loaded with the second level, so that the input end 1222 and the output end 1223 of the first switch 122 are turned on, and then the conductive path between the power supply and the heating film 121 is in a conductive state, and the heating film 121 can generate heat under the drive of the power supply to heat the gun lock assembly 13. Exemplarily, the first switch 122 is an NMOS tube, and the second level can be a high level. Among them, the low level is lower than the high level, and the voltage of the input end 1222 of the first switch 122 can be 12V.

[0068] Please refer to Figure 5 , Figure 5This is a circuit connection diagram of another heating component provided by an embodiment of the utility model. In an optional implementation, the control end 1221 of the first switch 122 may include an electrically connected second switch k2 and a relay, the relay may be electrically connected to a power supply, the input voltage of the relay may be 5V, the second switch k2 may be a MOS tube, the control end 1221 of the second switch k2 may be electrically connected to the output end of the temperature comparator 15, the input end of the second switch k2 may be electrically connected to the coil of the relay, the output end of the second switch k2 may be grounded, and the two contacts of the relay may be electrically connected to the output end 1223 of the first switch 122 and the input end 1222 of the first switch 122, respectively.

[0069] The control end 1221 of the first switch 122 may further include a first protection resistor R1, a second protection resistor R2 and a protection diode k4, wherein the first protection resistor R1 and the second protection resistor R2 are both electrically connected to the second switch k2, and the protection diode k4 may be connected in parallel with the relay.

[0070] Please refer to Figure 6 , Figure 6 It is a schematic diagram of the structure of another charging gun 10 provided in an embodiment of the utility model. It can be understood that: Figure 6 Only part of the structure of the charging gun 10 is shown in the figure, so that the structure of the electronic locking structure 131, the mechanical locking structure 132 and the heating film 121 is relatively clear. In an optional embodiment, the gun lock assembly 13 may include a connected electronic locking structure 131 and a mechanical locking structure 132. The electric vehicle may have a mechanical lock corresponding to the mechanical locking structure 132, and the mechanical locking structure 132 can cooperate with the mechanical lock on the electric vehicle so that the charging gun 10 and the vehicle interface on the electric vehicle remain in a plugged state during the power transmission process, that is, the charging gun 10 and the vehicle interface on the electric vehicle have a locking function to avoid the situation where the charging gun 10 and the vehicle interface of the electric vehicle are disconnected and disconnected accidentally when the charging gun 10 and the vehicle interface of the electric vehicle are not properly plugged in. Exemplarily, after the mechanical locking structure 132 cooperates with the lock buckle on the electric vehicle to lock, a pulling force is applied to the charging gun 10, and the charging gun 10 and the vehicle interface on the electric vehicle can still remain in a connected state.

[0071] The electronic locking structure 131 can control the mechanical locking structure 132 to be in a locked state when the charging gun 10 and the vehicle interface on the electric vehicle are in a connected state, so as to prevent the charging gun 10 and the vehicle interface on the electric vehicle from being separated.

[0072] The electronic locking structure 131 may include a first housing 1311, a driving element (not shown in the figure), and a first locking rod 1312. The driving element may be located in the first housing 1311. The first housing 1311 may have a first through hole k1. A portion of the first locking rod 1312 may be located in the first housing 1311 and connected to the driving element. A portion of the first locking rod 1312 extends out of the first housing 1311 through the first through hole k1. The first locking rod 1312 is configured to move between a first position and a second position under the drive of the driving element. When the first locking rod 1312 is located at the first position, the first locking rod 1312 abuts against the mechanical locking structure 132. When the first locking rod 1312 is located at the second position, the first locking rod 1312 is separated from the mechanical locking structure 132. In this way, the electronic locking structure 131 can lock and unlock the movement state of the mechanical locking structure 132 by moving the first locking rod 1312 to prevent the user from accidentally touching the mechanical locking structure 132 and causing the charging gun 10 and the vehicle interface on the electric vehicle to be accidentally separated when they are in the connected state.

[0073] Please refer to Figure 7 , Figure 7 It is a structural schematic diagram of an electronic locking structure 131 and a heating film 121 provided by an embodiment of the utility model. When water vapor in the external environment can enter the interior of the charging gun 10 through the gap on the charging gun 10, such as water vapor attached to the first locking rod 1312 and condensed into ice at a lower ambient temperature (such as in an environment with a temperature below 0 degrees), the first locking rod 1312 cannot move under the drive of the driving element, which leads to the malfunction of the electronic locking structure 131. In this case, the heating film 121 can cover part of the surface of the first shell 1311 of the electronic locking structure 131. In this way, the electronic locking structure 131 can be heated by the heating film 121 to thaw the first locking rod 1312, so that the electronic locking structure 131 functions normally.

[0074] The flatness of the surface of the portion of the first shell 1311 that covers the heating film 121 is better than the flatness of the other surface portions that are not covered with the heating film 121 , so as to improve the fit between the heating film 121 and the first shell 1311 .

[0075] For example, Figure 6As shown, the mechanical locking structure 132 may include a pressing member 1321, a mechanical lock rod 1322, a mechanical lock head 1323 and a pin 1324, wherein the pin 1324 is rotatably connected to the mechanical lock rod 1322, the pressing member 1321 is connected to one end of the mechanical lock rod 1322 away from the mechanical lock head 1323, and the end of the mechanical lock head 1323 away from the mechanical lock rod 1322 can match the mechanical lock port on the electric vehicle. The user can apply pressure to the pressing member 1321 so that the pressing member 1321 drives the mechanical lock rod 1322 to move, and then the mechanical lock rod 1322 drives the mechanical lock head 1323 to rotate through the pin 1324, so as to achieve the function of locking the mechanical lock head 1323 and the mechanical lock buckle. When the first lock rod 1312 of the electronic locking structure 131 is in the first position, it can abut against the pressing member 1321 or the mechanical lock rod 1322.

[0076] Exemplarily, the charging gun 10 may further include an emergency unlocking structure. When the electronic locking structure 131 is powered off or fails, the emergency unlocking structure may unlock the mechanical locking structure 132 .

[0077] Please refer to Figure 8 , Fig. 9 and Fig.10 , Figure 8 is a schematic structural diagram of another charging gun 10 provided in an embodiment of the utility model. Fig. 9 is a schematic structural diagram of another charging gun 10 provided in an embodiment of the utility model. Fig.10 1 is a schematic diagram of another structure of an electronic locking structure 131 and a heating film 121 provided in an embodiment of the present utility model. It can be understood that: Figure 8 and Fig. 9 Only part of the structure of the charging gun 10 is shown in the figure to make the structure of the electronic locking structure 131 and the heating film 121 clearer. In an optional embodiment, the heating film 121 can surround the first shell 1311 along the first direction D1, and the first direction D1 is a direction perpendicular to the moving direction of the first locking rod 1312. In this way, the contact area between the heating film 121 and the electronic locking structure 131 can be increased, the heating efficiency of the heating film 121 on the electronic locking structure 131 can be enhanced, and the heating film 121 can be prevented from covering the surface of the first shell 1311 of the electronic locking structure 131 and affecting the movement of the first locking rod 1312.

[0078] Please refer to Fig.11 , Fig.11It is a structural schematic diagram of another electronic locking structure 131 and a heating component 12 provided by an embodiment of the utility model. In an optional embodiment, the heating component 12 may also include a thermally conductive adhesive 123, and the thermally conductive adhesive 123 is located between the heating film 121 and the first shell 1311, and the thermally conductive adhesive 123 is bonded to the heating film 121 and the first shell 1311 respectively. The thermally conductive adhesive 123 is also called thermally conductive silicone. It is a silicone that is kneaded with organic silicone as the main body and polymer materials such as fillers and thermally conductive materials. It has good thermal conductivity and electrical insulation properties. The thermally conductive adhesive 123 can replace the traditional screw connection method, and can improve the heat conduction efficiency between the heating film 121 and the first shell 1311 while connecting the heating film 121 and the first shell 1311.

[0079] Please refer to Fig.12 , Fig.12 It is a structural schematic diagram of another electronic locking structure 131 and a heating component 12 provided in an embodiment of the utility model. In an optional implementation, the surface of the first shell 1311 is uneven, that is, the surface of the first shell 1311 has a plurality of bumps t1, and the thermal conductive adhesive 123 can fill the gaps between the plurality of bumps t1 to improve the connection stability between the heating film 121 and the first shell 1311.

[0080] Please refer to Fig.13 and Fig.14 , Fig.13 is a schematic structural diagram of another charging gun 10 provided in an embodiment of the utility model. Fig.14 yes Fig.13 The schematic diagram of the structure of the heating film 121 in the charging gun 10 shown in FIG. 1 is understood that: Fig.13 Only part of the structure of the charging gun 10 is shown in FIG. 1 . In an optional embodiment, the heating assembly 12 may further include a first extension film 124, and the device housing 11 may include a handle portion 111 and a receiving portion 112. The handle portion 111 may have a first inner cavity, and the receiving portion 112 may have a second inner cavity, and the first inner cavity may be connected to the second inner cavity; the first extension film 124 may be connected to the heating film 121, and the heating film 121 may be located in the second inner cavity, and the first extension film 124 may be located in the first inner cavity. Both the first inner cavity and the second inner cavity belong to the chambers in the device housing 11 of the charging gun 10. When the ambient temperature is low, the heating film 121 may heat the gun lock assembly 13. At this time, the first extension film 124 may transfer the heat generated on the heating film 121 to the first inner cavity to heat the handle portion 111, so that when the user touches the handle portion 111, the temperature on the handle portion 111 is higher than the ambient temperature, which can improve the user's experience.

[0081] Please refer to Fig.13 and Fig.14In an optional embodiment, the heating assembly 12 may further include a second extension film 125, the device housing 11 includes a gun head 113, and the mechanical locking structure 132 may include a mechanical lock 1323. The gun head 113 has a third inner cavity, and the mechanical lock 1323 may be located in the second inner cavity of the gun head 113, and the third inner cavity may be connected to the second inner cavity. The second extension film 125 may be connected to the heating film 121, and the second extension film 125 is located in the third inner cavity. The third inner cavity also belongs to the chamber in the device housing 11 of the charging gun 10. Because when the ambient temperature is low, water vapor may also invade the location of the mechanical locking structure 132, causing the mechanical locking structure 132 to fail. The gun lock assembly 13 is heated by the heating film 121, and the second extension film 125 can transfer the heat generated on the heating film 121 to the third inner cavity to heat the gun head 113, and the mechanical lock 1323 can be unlocked, thereby improving the applicability of the charging gun 10.

[0082] Please refer to Fig.15 and Fig.16 , Fig.15 is a structural schematic diagram of another charging gun provided by an embodiment of the utility model, Fig.16 It is a connection diagram of a power terminal 16 and a power line 17 provided in an embodiment of the utility model. In an optional implementation, the charging gun 10 may also include a power terminal 16 and a power line 17. The power line 17 may be connected to a power source, the power terminal 16 may be connected to the power line 17, and the thermistor 14 may be located at the connection position between the power terminal 16 and the power line 17. The connection position between the power terminal 16 and the power line 17 may be located in the gun head 113. The power terminal 16 may include a DC power positive terminal (DC+) and a DC power negative terminal (DC-), and the power line 17 may include a DC power positive line (DC+) and a DC power negative line (DC-). The connection position may be the center of the connection area of ​​the power terminal 16 and the power line 17 in the length direction, and the length direction may be the axial direction of the power terminal 16 at the connection position.

[0083] One end of the second extension film 125 away from the heating film 121 may be located at the connection position, and there may be a gap between the second extension film 125 and the thermistor 14. In this way, a temperature sensor can be used to monitor the temperature change at the connection position between the power terminal 16 and the power line 17, as well as the temperature change of the heating film 121, which can simplify the internal structure of the charging gun 10. In addition, the distance between the end of the second extension film 125 away from the heating film 121 and the connection position is in the range of 10 mm to 30 mm. In this way, while ensuring that there is an electrical gap between the second extension film 125 and the connection position, the second extension film 125 can conduct the heat generated on the heating film 121 to the vicinity of the temperature sensor, so that the temperature sensor can accurately obtain the temperature of the heating film 121.

[0084] Fig.17 This is a schematic diagram of the structure of another heating film 121 provided in an embodiment of the utility model. Please refer to Fig.17 In an optional embodiment, the first extension film 124 and the second extension film 125 can be an integral structure with the heating film 121; that is, the heating film 121 can have a first edge and a second edge relative to each other in the moving direction of the first locking rod 1312, the first extension film 124 can be a first part extending from the first edge of the heating film 121, the second extension film 125 can be a second part extending from the second edge of the heating film 121, and the first extension film 124 and the second extension film 125 both have a heating function. In this way, the cavity of the device housing 11 can be heated by the heating film 121, the first extension film 124 and the second extension film 125, thereby improving the heating efficiency of the heating component 12.

[0085] Alternatively, please refer to Fig.14 In an optional embodiment, the first extension film 124 and the second extension film 125 may both be heat-conducting structures. That is, the heating film 121 may have a first edge and a second edge relative to each other in the moving direction of the first locking rod 1312, the first extension film 124 may be a first heat-conducting aluminum film connected to the first edge of the heating film 121, the second extension film 125 may be a second heat-conducting aluminum film connected to the second edge of the heating film 121, and the first extension film 124 and the second extension film 125 both have a heat-conducting function. In this way, the heat generated on the heating film 121 can be transferred to other locations in the cavity of the device housing 11 through the first heat-conducting aluminum film and the second heat-conducting aluminum film, and the temperature in the cavity of the device housing 11 can be jointly increased by the heating film 121, the first heat-conducting aluminum film, and the second heat-conducting aluminum film.

[0086] Fig.18 This is a schematic diagram of the structure of another heating film 121 provided in an embodiment of the utility model. Please refer to Fig.18In an optional embodiment, the heating film 121 may include a stacked first packaging layer 1211, a first adhesive layer 1212, a heating layer 1213, a second adhesive layer 1214, and a second packaging layer 1215, wherein the heating layer 1213 may include a metal conductive mesh, and the heating layer 1213 may also include a graphene material. By covering the heating film 121 with a metal conductive mesh on the first shell 1311 of the resistance locking structure of the gun lock assembly 13, the electronic locking structure 131 and the power cord 17 can be electromagnetically shielded, and the stability of the charging gun 10 during operation can be improved. The material of the metal conductive mesh may include at least one of silver and copper.

[0087] In summary, the embodiment of the utility model provides a charging gun, including a device housing and a first port located in the device housing, a heating component and a gun lock component. Among them, the heating component is located outside the gun lock component and contacts the gun lock component. The heating component is electrically connected to the power supply through the first port. When the temperature of the charging gun is low, the heating component can convert the electric energy output by the power supply into thermal energy, so as to generate heat through the heating component to heat the gun lock component, so that the gun lock component can work normally under low temperature conditions, which solves the problem in the related art that the charging gun cannot supply power to the electric vehicle under low temperature conditions, and improves the applicability of the charging gun.

[0088] In addition, an embodiment of the present application further provides a charging device, which includes a pile body and a charging gun connected to the pile body, and the charging gun is the charging gun in any of the above embodiments.

[0089] In the present invention, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0090] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A charging gun, characterized in that: The charging gun includes a device housing and a first port located in the device housing, a heating component, and a gun lock component; The first port is electrically connected to the heating component, and the first port is also electrically connected to a power source; The heating component is located between the gun lock component and the inner wall of the device housing, and the heating component is in contact with the gun lock component.

2. The charging gun according to claim 1, characterized in that: The charging gun further comprises an electrically connected thermistor and a temperature comparator, wherein the thermistor is located on a side of the heating assembly away from the gun lock assembly; The heating assembly includes an electrically connected heating film and a first switch, wherein the heating film is in contact with the gun lock assembly, and the first switch has a control end, an input end, and an output end, wherein the control end is electrically connected to the temperature comparator, the input end is electrically connected to the power supply, and the output end is electrically connected to the heating film.

3. The charging gun according to claim 2, characterized in that: The gun lock assembly includes an electronic locking structure and a mechanical locking structure connected; The electronic locking structure comprises a first housing, a driving element and a first locking rod, wherein the driving element is located in the first housing, the first housing has a first through hole, the first locking rod is located in the first housing and connected to the driving element, and the first locking rod extends out of the first housing through the first through hole; The first locking rod is configured to move between a first position and a second position under the drive of the driving element. When the first locking rod is at the first position, the first locking rod abuts against the mechanical locking structure. When the first locking rod is at the second position, the first locking rod is separated from the mechanical locking structure. The heating film covers a portion of the surface of the first shell.

4. The charging gun according to claim 3, characterized in that: The heating film surrounds the first shell along a first direction, and the first direction is a direction perpendicular to a moving direction of the first locking rod.

5. The charging gun according to claim 3 or 4, characterized in that: The heating assembly further includes a heat-conducting adhesive, which is located between the heating film and the first shell, and is bonded to the heating film and the first shell respectively.

6. The charging gun according to claim 3, characterized in that: The heating assembly further comprises a first extension film, and the device housing comprises a handle portion and a receiving portion; The handle portion has a first inner cavity, the accommodating portion has a second inner cavity, and the first inner cavity and the second inner cavity are connected; The first extension film is connected to the heating film, the heating film is located in the second inner cavity, and the first extension film is located in the first inner cavity.

7. The charging gun according to claim 6, characterized in that: The heating assembly further comprises a second extension film, the device housing comprises a gun head, and the mechanical locking structure comprises a mechanical lock head; The gun head has a third inner cavity, the mechanical lock is located in the second inner cavity of the gun head, and the third inner cavity is connected to the second inner cavity; The second extension film is connected to the heating film, and the second extension film is located in the third inner cavity.

8. The charging gun according to claim 7, characterized in that: The charging gun further includes a power terminal and a power line, the power line is connected to the power source, the power terminal is connected to the power line, and the thermistor is located at the connection position between the power terminal and the power line; One end of the second stretch film away from the heating film is located at the connection position, and a gap is provided between the second stretch film and the thermistor.

9. The charging gun according to claim 4, characterized in that: The heating film includes a stacked first encapsulation layer, a first adhesive layer, a heating layer, a second adhesive layer, and a second encapsulation layer, wherein the heating layer includes a metal conductive mesh.

10. A charging device, characterized in that: It comprises a pile body and a charging gun connected to the pile body, and the charging gun is the charging gun as described in any one of claims 1-9.

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