Cooling box, electric connection module, charging module and charging device

Abstract

The utility model discloses a cooling box, an electric connection module, a charging module and a charging device. The cooling box is used for being in thermal contact with a connecting terminal of the charging device. The cooling box comprises a metal box provided with a cooling liquid containing cavity used for containing cooling liquid, an inlet and an outlet, wherein the inlet and the outlet are communicated with the cooling liquid containing cavity; and the insulating heat conduction material is arranged on the outer side of the metal box and is used for electrically isolating the metal box from the connecting terminal and transferring heat of the connecting terminal to the metal box. The inlet is used for being connected with a liquid inlet pipe used for supplying cooling liquid, and the outlet is used for being connected with a cooling core pipe of the charging cable, so that the cooling liquid can flow through the cooling liquid containing cavity of the cooling box and the cooling core pipe of the charging cable to cool the connecting terminal and the charging cable. According to the utility model, the metal box is simple in structure and easy to manufacture, so that the cost can be greatly reduced. Moreover, the charging device can effectively prevent the connecting terminal from being electrically connected to the metal box, and the use safety of the charging device is improved.

Description

Technical Field

[0001] The utility model relates to a cooling box, comprising an electrical connection module of the cooling box, a charging module of the electrical connection module and a charging device comprising the charging module. Background Art

[0002] In the prior art, the charging station usually includes a charging station housing, charging terminals arranged in the charging station housing, and a charging cable electrically connected to the charging terminals. In order to increase the charging speed, the charging current needs to be increased. The current charging current requirement is as high as 600A, and it may be increased to 1000A in the future. When such a large current flows through the charging cable and the charging terminal, the temperature inside the charging station housing and the temperature of the charging cable will rise sharply. In order to prevent the temperature from rising too much, in the prior art, the diameter of the charging cable is usually increased, but this will increase the volume and weight of the charging station product and lead to higher costs.

[0003] In order to improve the cooling performance of the charging station, a liquid-cooled charging station has been proposed recently. A cooling liquid receiving chamber for receiving cooling liquid is provided in the shell of the liquid-cooled charging station. The cooling liquid receiving chamber has an inlet pipe joint for connecting to the cooling liquid inlet pipe and an outlet pipe joint for connecting to the cooling liquid outlet pipe. This technical solution will lead to a complicated shell structure of the charging station, and the subsequent enclosure cost is very high, which is very inconvenient to use. Utility Model Content

[0004] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0005] According to one aspect of the utility model, a cooling box is provided. The cooling box is used for thermal contact with the connecting terminal of the charging device. The cooling box includes: a metal box having a cooling liquid containing chamber for containing coolant and an inlet and an outlet connected to the cooling liquid containing chamber; and an insulating heat-conductive material, which is arranged on the outside of the metal box, for electrically isolating the metal box from the connecting terminal and transferring the heat of the connecting terminal to the metal box. The inlet is used to be connected to a liquid inlet pipe for supplying coolant, and the outlet is used to be connected to a cooling core tube of a charging cable, so that the coolant can flow through the cooling liquid containing chamber of the cooling box and the cooling core tube of the charging cable to cool the connecting terminal and the charging cable.

[0006] According to an exemplary embodiment of the utility model, the cooling box also includes: a liquid inlet pipe joint, welded to the inlet of the metal box, for connecting to the liquid inlet pipe; and a cooling core pipe joint, welded to the outlet of the metal box, for connecting to the cooling core pipe.

[0007] According to another exemplary embodiment of the utility model, two outlets are formed on the metal box, and the cooling box includes two cooling core pipe joints, which are respectively welded to the two outlets for being respectively connected to the cooling core pipes of the two charging cables.

[0008] According to another exemplary embodiment of the present invention, the metal box includes: a box body having a bottom wall, a peripheral wall and a top opening; and an upper cover welded to the top opening of the box body, and the inlet and the outlet are formed on the peripheral wall of the box body.

[0009] According to another exemplary embodiment of the present invention, the insulating thermally conductive material includes: an insulating thermally conductive layer coated on the outer surface of the metal box; and / or an insulating thermally conductive film padded between the metal box and the connecting terminal.

[0010] According to another aspect of the utility model, an electrical connection module is provided, comprising: a connection terminal; the aforementioned cooling box, which is used for thermal contact with the connection terminal; and a charging cable, which has a cooling core tube connected to the outlet of the cooling box and a conductive core connected to the connection terminal.

[0011] According to an exemplary embodiment of the present utility model, the electrical connection module further includes: a liquid inlet pipe connected to the inlet of the cooling box, for supplying coolant to the cooling box and the cooling core tube of the charging cable.

[0012] According to another exemplary embodiment of the present invention, the connection terminal has a flat welding end, the welding end of the connection terminal is welded to one end of the conductive core of the charging cable, and the bottom of the cooling box is in thermal contact with the welding end of the connection terminal.

[0013] According to another exemplary embodiment of the present invention, the conductive core of the charging cable is tubular, the cooling core tube is disposed in the tubular conductive core, and the charging cable further includes an outer insulating layer wrapped around the conductive core.

[0014] According to another exemplary embodiment of the present utility model, the electrical connection module includes two connection terminals and two charging cables, the two connection terminals are electrically connected to the two charging cables respectively, and the cooling box is in thermal contact with the two connection terminals at the same time.

[0015] According to another aspect of the utility model, a charging module is provided. The charging module comprises: a rear housing, comprising two rear half housings combined together; and the aforementioned electrical connection module, which is arranged in the rear housing and whose charging cable is led out of the rear housing, and the cooling box and the connecting terminal are squeezed between the two rear half housings, so that the cooling box and the connecting terminal are in reliable thermal contact.

[0016] According to an exemplary embodiment of the present invention, the rear shell has two opposite ends in its longitudinal direction, and a first through hole allowing the charging cable to pass through and a second through hole allowing the liquid inlet pipe of the electrical connection module to pass through are formed on one end of the rear shell.

[0017] According to another exemplary embodiment of the utility model, the two connection terminals of the electrical connection module are arranged side by side in the transverse direction of the rear shell; the two charging cables of the electrical connection module are arranged side by side in the transverse direction of the rear shell and are respectively led out from one end of the rear shell through the two first through holes.

[0018] According to another exemplary embodiment of the present utility model, the two rear half shells are opposite to each other in the height direction of the rear shell and are fastened together by screws to form a complete rear shell.

[0019] According to another exemplary embodiment of the utility model, the rear shell has a first wall and a second wall opposite to each other in the height direction thereof, and a mating port suitable for mating with the rear end of the main shell of the charging device is formed on the first wall of the rear shell; a buckle is formed on the mating port of the rear shell, and the buckle has a slot suitable for engaging with a protrusion on the rear end of the main shell to fix the rear shell to the rear end of the main shell.

[0020] According to another exemplary embodiment of the utility model, the connecting terminal has a connecting end for electrically connecting to the charging terminal of the charging device, and a connecting hole allowing a threaded connector to pass through is formed on the connecting end, so that the connecting terminal can be fastened to the charging terminal by the threaded connector passing through the connecting hole; and a mounting hole is formed on the second wall of the rear shell to allow the threaded connector to enter the rear shell through the mounting hole and fasten the connecting end of the connecting terminal to the charging terminal.

[0021] According to another aspect of the utility model, a charging device is provided, comprising: a main housing; a charging terminal inserted in the main housing; and the aforementioned charging module, a rear housing of which is mounted on the rear end of the main housing and a connection terminal of which is electrically connected to the charging terminal.

[0022] According to an exemplary embodiment of the present utility model, the charging device is a charging seat suitable for mating with a charging gun, and the charging terminal is suitable for mating and connecting with a matching terminal in the charging gun.

[0023] According to another exemplary embodiment of the present utility model, the charging device is a charging gun suitable for mating with a charging base, and the charging terminal is suitable for mating and connecting with a matching terminal in the charging base.

[0024] In the above exemplary embodiments of the present invention, the metal box for containing the coolant has a simple structure and is easy to manufacture, thereby greatly reducing the cost. In addition, the present invention provides an insulating thermal conductive material on the outside of the metal box for electrically isolating the metal box and the connection terminal, which can effectively prevent the connection terminal from being electrically connected to the metal box, thereby improving the safety of the charging device.

[0025] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram showing an electrical connection module according to an exemplary embodiment of the utility model;

[0027] Figure 2 An exploded schematic diagram showing an electrical connection module according to an exemplary embodiment of the utility model;

[0028] Figure 3 An exploded schematic diagram showing a cooling box according to an exemplary embodiment of the present utility model;

[0029] Figure 4 A vertical cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present utility model;

[0030] Figure 5 A horizontal cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present utility model;

[0031] Figure 6 A three-dimensional schematic diagram showing a charging module according to an exemplary embodiment of the utility model;

[0032] Figure 7 An exploded schematic diagram showing a charging module according to an exemplary embodiment of the utility model;

[0033] Figure 8 A vertical cross-sectional view showing a charging module according to an exemplary embodiment of the present utility model;

[0034] Fig. 9 A three-dimensional schematic diagram showing a charging device according to an exemplary embodiment of the utility model;

[0035] Fig.10 An exploded schematic diagram showing a charging device according to an exemplary embodiment of the utility model;

[0036] Fig.11 A three-dimensional schematic diagram showing an electrical connection module according to another exemplary embodiment of the utility model;

[0037] Fig.12 An exploded schematic diagram of an electrical connection module according to another exemplary embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0038] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0039] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0040] According to an overall technical concept of the utility model, a cooling box is provided. The cooling box is used to be in thermal contact with the connecting terminal of the charging device. The cooling box includes: a metal box having a cooling liquid containing chamber for containing coolant and an inlet and an outlet connected to the cooling liquid containing chamber; and an insulating heat-conductive material, which is arranged on the outside of the metal box, for electrically isolating the metal box from the connecting terminal and transferring the heat of the connecting terminal to the metal box. The inlet is used to be connected to a liquid inlet pipe for supplying coolant, and the outlet is used to be connected to a cooling core tube of a charging cable, so that the coolant can flow through the cooling liquid containing chamber of the cooling box and the cooling core tube of the charging cable to cool the connecting terminal and the charging cable.

[0041] According to another general technical concept of the utility model, an electrical connection module is provided, which includes: a connection terminal; the aforementioned cooling box, which is used for thermal contact with the connection terminal; and a charging cable, which has a cooling core tube connected to the outlet of the cooling box and a conductive core connected to the connection terminal.

[0042] According to another general technical concept of the utility model, a charging module is provided. The charging module includes: a rear housing, including two rear half housings combined together; and the aforementioned electrical connection module, which is arranged in the rear housing and its charging cable is led out of the rear housing, and the cooling box and the connecting terminal are squeezed between the two rear half housings, so that the cooling box and the connecting terminal are in reliable thermal contact.

[0043] According to another general technical concept of the utility model, a charging device is provided, which includes: a main housing; a charging terminal inserted in the main housing; and the aforementioned charging module, whose rear housing is mounted on the rear end of the main housing and whose connection terminal is electrically connected to the charging terminal.

[0044] Figure 1 A three-dimensional schematic diagram showing an electrical connection module 100 according to an exemplary embodiment of the present utility model; Figure 2 An exploded schematic diagram showing an electrical connection module 100 according to an exemplary embodiment of the present utility model; Figure 3 An exploded schematic diagram showing a cooling box 1 according to an exemplary embodiment of the present utility model; Figure 4 A vertical cross-sectional view showing an electrical connection module 100 according to an exemplary embodiment of the present invention; Figure 5 A horizontal cross-sectional view of an electrical connection module 100 according to an exemplary embodiment of the present invention is shown.

[0045] like Figures 1 to 5 As shown, in an exemplary embodiment of the utility model, a cooling box 1 is disclosed. The cooling box 1 is used for thermal contact with the connection terminal 2 of the charging device. The cooling box 1 comprises: a metal box 1' and an insulating thermal conductive material (not shown). The metal box 1' can be an aluminum box. The insulating thermal conductive material is an electrically insulating material capable of conducting heat, that is, it can conduct heat but not conduct electricity.

[0046] like Figures 1 to 5 As shown, in the illustrated embodiment, the metal box 1' has a cooling liquid receiving chamber 101 for receiving cooling liquid, and an inlet 103 and an outlet 102 communicating with the cooling liquid receiving chamber 101. An insulating heat-conductive material is provided on the outer side of the metal box 1' to electrically isolate the metal box 1' from the connection terminal 2 and to transfer the heat of the connection terminal 2 to the metal box 1'.

[0047] like Figures 1 to 5As shown, in the illustrated embodiment, the inlet 103 of the metal box 1' is used to be connected to the liquid inlet pipe 7 for supplying coolant, and the outlet 102 of the metal box 1' is used to be connected to the cooling core tube 32 of the charging cable 3, so that the coolant can flow through the coolant containing chamber 101 of the cooling box 1 and the cooling core tube 32 of the charging cable 3 to cool the connecting terminal 2 and the charging cable 3.

[0048] like Figures 1 to 5 As shown, in the illustrated embodiment, the cooling box 1 further comprises: a liquid inlet pipe joint 13 and a cooling core pipe joint 12. The liquid inlet pipe joint 13 is welded to the inlet 103 of the metal box 1', and is used to be connected to the liquid inlet pipe 7. The cooling core pipe joint 12 is welded to the outlet 102 of the metal box 1', and is used to be connected to the cooling core pipe 32.

[0049] like Figures 1 to 5 As shown, in the illustrated embodiment, two outlets 102 are formed on the metal box 1 ′, and the cooling box 1 includes two cooling core pipe connectors 12 , which are respectively welded to the two outlets 102 for being connected to the cooling core pipes 32 of the two charging cables 3 .

[0050] like Figures 1 to 5 As shown, in the illustrated embodiment, the metal box 1' comprises: a box body 10 and an upper cover 11. The box body 10 has a bottom wall 10a, a peripheral wall 10b and a top opening 10c. The upper cover 11 is welded to the top opening 10c of the box body 10. The inlet 103 and the outlet 102 of the metal box 1' are formed on the peripheral wall 10b of the box body 10.

[0051] like Figures 1 to 5 As shown, in the illustrated embodiment, the insulating thermally conductive material includes an insulating thermally conductive layer (not shown), which is coated on the outer surface of the metal box 1'. In this way, the connection terminal 2 can be prevented from being electrically connected to the metal box 1'.

[0052] Fig.11 A perspective schematic diagram showing an electrical connection module 100 according to another exemplary embodiment of the present utility model; Fig.12 An exploded schematic diagram of an electrical connection module 100 according to another exemplary embodiment of the present invention is shown.

[0053] Fig.11 and Fig.12 The cooling box 1 shown is Figures 1 to 5 The difference of the cooling box 1 shown is only that an insulating heat-conducting film 6 is added. Fig.11 and Fig.12 As shown, in the illustrated embodiment, the insulating thermally conductive material includes an insulating thermally conductive film 6. The insulating thermally conductive film 6 is padded between the metal box 1' and the connection terminal 2. For example, the insulating thermally conductive film 6 may be attached to the outer side of the metal box 1'.

[0054] like Figure 1-5 and Figure 11-12 As shown, in another exemplary embodiment of the present utility model, an electrical connection module 100 is also disclosed. The electrical connection module 100 includes: a connection terminal 2, a cooling box 1 and a charging cable 3. The cooling box 1 is used for thermal contact with the connection terminal 2. The charging cable 3 has a cooling core tube 32 connected to the outlet 102 of the cooling box 1 and a conductive core 31 connected to the connection terminal 2.

[0055] like Figure 1-5 and Figure 11-12 As shown, in the illustrated embodiment, the electrical connection module 100 further includes a liquid inlet pipe 7 , which is connected to the inlet 103 of the cooling box 1 for supplying coolant to the cooling box 1 and the cooling core tube 32 of the charging cable 3 .

[0056] like Figure 1-5 and Figure 11-12 As shown, in the illustrated embodiment, the connection terminal 2 has a flat welding end 21 , which is welded to one end of the conductive core 31 of the charging cable 3 , and the bottom of the cooling box 1 is in thermal contact with the welding end 21 of the connection terminal 2 .

[0057] like Figure 1-5 and Figure 11-12 As shown, in the illustrated embodiment, the conductive core 31 of the charging cable 3 is tubular, the cooling core tube 32 is disposed in the tubular conductive core 31 , and the charging cable 3 further includes an outer insulating layer 33 wrapped around the conductive core 31 .

[0058] like Figure 1-5 and Figure 11-12 As shown, in the illustrated embodiment, the electrical connection module 100 includes two connection terminals 2 and two charging cables 3 , the two connection terminals 2 are electrically connected to the two charging cables 3 , respectively, and the cooling box 1 is in thermal contact with the two connection terminals 2 at the same time.

[0059] Figure 6 A three-dimensional schematic diagram showing a charging module 200 according to an exemplary embodiment of the present utility model; Figure 7 An exploded schematic diagram showing a charging module 200 according to an exemplary embodiment of the present utility model; Figure 8 A vertical cross-sectional view showing a charging module 200 according to an exemplary embodiment of the present invention; Fig. 9 A three-dimensional schematic diagram showing a charging device according to an exemplary embodiment of the utility model; Fig.10 An exploded schematic diagram of a charging device according to an exemplary embodiment of the utility model is shown.

[0060] like Figures 1 to 12As shown, in another exemplary embodiment of the present utility model, a charging module 200 is also disclosed. The charging module 200 includes: a rear housing 4 and the aforementioned electrical connection module 100. The rear housing 4 includes two rear half housings 40 combined together. The electrical connection module 100 is arranged in the rear housing 4 and its charging cable 3 is led out from the rear housing 4. The cooling box 1 and the connecting terminal 2 are squeezed between the two rear half housings 40, so that the cooling box 1 and the connecting terminal 2 are in reliable thermal contact.

[0061] like Figures 1 to 12 As shown, in the illustrated embodiment, the rear shell 4 has two opposite ends in its longitudinal direction Y, and a first through hole 402 allowing the charging cable 3 to pass through and a second through hole 403 allowing the liquid inlet pipe 7 of the electrical connection module 100 to pass through are formed at one end of the rear shell 4.

[0062] like Figures 1 to 12 As shown, in the illustrated embodiment, the two connection terminals 2 of the electrical connection module 100 are arranged side by side in the transverse direction X of the rear housing 4. The two charging cables 3 of the electrical connection module 100 are arranged side by side in the transverse direction X of the rear housing 4 and are respectively led out from one end of the rear housing 4 through two first through holes 402.

[0063] like Figures 1 to 12 As shown, in the illustrated embodiment, the two rear half shells 40 are opposite to each other in the height direction Z of the rear shell 4 and are fastened together by screws to form a complete rear shell 4.

[0064] like Figures 1 to 12 As shown, in the illustrated embodiment, the rear housing 4 has a first wall 4a and a second wall 4b opposite to each other in the height direction Z thereof, and a mating port 404 suitable for mating with the rear end of the main housing 5 of the charging device is formed on the first wall 4a of the rear housing 4. A buckle 41 is formed on the mating port 404 of the rear housing 4, and the buckle 41 has a slot 41a suitable for engaging with the protrusion 5a on the rear end of the main housing 5 to fix the rear housing 4 to the rear end of the main housing 5.

[0065] like Figures 1 to 12 As shown, in the illustrated embodiment, the connecting terminal 2 has a connecting end 22 for electrically connecting to a charging terminal (not shown) of a charging device, and a connecting hole 22a is formed on the connecting end 22 to allow a threaded connector (not shown, for example, a bolt) to pass through, so that the connecting terminal 2 can be fastened to the charging terminal by the threaded connector passing through the connecting hole 22a.

[0066] like Figures 1 to 12 As shown, in the illustrated embodiment, a mounting hole 401 is formed on the second wall 4b of the rear housing 4 to allow a threaded connector to enter the rear housing 4 through the mounting hole 401 and fasten the connecting end 22 of the connecting terminal 2 to the charging terminal.

[0067] like Figures 1 to 12 As shown, in another exemplary embodiment of the present utility model, a charging device is also disclosed. The charging device includes: a main housing 5, a charging terminal (not shown) and the aforementioned charging module 200. The charging terminal is inserted into the main housing 5. The rear housing 4 of the charging module 200 is mounted on the rear end of the main housing 5 and its connection terminal 2 is electrically connected to the charging terminal.

[0068] like Figures 1 to 12 As shown, in an exemplary embodiment of the present utility model, the charging device may be a charging seat suitable for mating with a charging gun, and the charging terminal is suitable for mating and connecting with a matching terminal in the charging gun.

[0069] like Figures 1 to 12 As shown, in another exemplary embodiment of the present utility model, the charging device may be a charging gun adapted to be mated with a charging base, and the charging terminal is adapted to be mated and connected with a mating terminal in the charging base.

[0070] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0071] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present invention and should not be construed as limiting the present invention.

[0072] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0073] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. A cooling box for thermally contacting a connection terminal (2) of a charging device, characterized in that: The cooling box (1) comprises: A metal box (1') having a cooling liquid containing chamber (101) for containing cooling liquid and an inlet (103) and an outlet (102) communicating with the cooling liquid containing chamber (101); and an insulating heat-conducting material, which is arranged on the outer side of the metal box (1') and is used to electrically isolate the metal box (1') from the connecting terminal (2) and transfer the heat of the connecting terminal (2) to the metal box (1'), The inlet (103) is used to be connected to a liquid inlet pipe (7) for supplying a coolant, and the outlet (102) is used to be connected to a cooling core tube (32) of a charging cable (3), so that the coolant can flow through the coolant receiving chamber (101) of the cooling box (1) and the cooling core tube (32) of the charging cable (3), so as to cool the connecting terminal (2) and the charging cable (3).

2. The cooling box according to claim 1, characterized in that: Also includes: a liquid inlet pipe joint (13), welded to the inlet (103) of the metal box (1') and used for connecting to the liquid inlet pipe (7); and A cooling core pipe joint (12) is welded to the outlet (102) of the metal box (1') and is used to be connected to the cooling core pipe (32).

3. The cooling box according to claim 2, characterized in that: Two outlets (102) are formed on the metal box (1'), and the cooling box (1) includes two cooling core pipe joints (12). The two cooling core pipe joints (12) are respectively welded to the two outlets (102) and are used to be respectively connected to the cooling core pipes (32) of two charging cables (3).

4. The cooling box according to claim 1, characterized in that: The metal box (1') comprises: A box body (10) having a bottom wall (10a), a peripheral wall (10b) and a top opening (10c); and The upper cover (11) is welded to the top opening (10c) of the box body (10), and the inlet (103) and the outlet (102) are formed on the peripheral wall (10b) of the box body (10).

5. The cooling box according to any one of claims 1 to 4, characterized in that: The insulating thermally conductive material comprises: an insulating heat-conducting layer, coated on the outer surface of the metal box (1'); and / or An insulating heat-conductive film (6) is cushioned between the metal box (1') and the connecting terminal (2).

6. An electrical connection module, characterized in that: include: Connecting terminal (2); The cooling box (1) according to any one of claims 1 to 5, configured to be in thermal contact with the connecting terminal (2); and A charging cable (3) comprises a cooling core tube (32) connected to an outlet (102) of the cooling box (1) and a conductive core (31) connected to the connection terminal (2).

7. The electrical connection module according to claim 6, characterized in that: Also includes: A liquid inlet pipe (7) is connected to the inlet (103) of the cooling box (1) and is used to supply coolant to the cooling box (1) and the cooling core tube (32) of the charging cable (3).

8. The electrical connection module according to claim 6, characterized in that: The connection terminal (2) has a flat welding end (21), the welding end (21) of the connection terminal (2) is welded to one end of the conductive core (31) of the charging cable (3), and the bottom of the cooling box (1) is in thermal contact with the welding end (21) of the connection terminal (2).

9. The electrical connection module according to claim 6, characterized in that: The conductive core (31) of the charging cable (3) is tubular, the cooling core tube (32) is arranged in the tubular conductive core (31), and the charging cable (3) further comprises an outer insulating layer (33) wrapped around the outside of the conductive core (31).

10. The electrical connection module according to claim 6, characterized in that: The electrical connection module (100) comprises two connection terminals (2) and two charging cables (3), the two connection terminals (2) being electrically connected to the two charging cables (3) respectively, and the cooling box (1) being in thermal contact with the two connection terminals (2) at the same time.

11. A charging module, characterized in that: include: A rear housing (4), comprising two rear half housings (40) assembled together; and The electrical connection module (100) according to any one of claims 6 to 10 is arranged in the rear housing (4) and its charging cable (3) is led out from the rear housing (4). The cooling box (1) and the connecting terminal (2) are squeezed between the two rear half shells (40), so that the cooling box (1) and the connecting terminal (2) are in reliable thermal contact.

12. The charging module according to claim 11, characterized in that: The rear shell (4) has two opposite ends in its longitudinal direction (Y), and a first through hole (402) allowing the charging cable (3) to pass through and a second through hole (403) allowing the liquid inlet pipe (7) of the electrical connection module (100) to pass through are formed on one end of the rear shell (4).

13. The charging module according to claim 12, characterized in that: The two connection terminals (2) of the electrical connection module (100) are arranged side by side in a transverse direction (X) of the rear housing (4); The two charging cables (3) of the electrical connection module (100) are arranged side by side in the transverse direction (X) of the rear housing (4) and are respectively led out from one end of the rear housing (4) via the two first through holes (402).

14. The charging module according to claim 12, characterized in that: The two rear half shells (40) are opposite to each other in the height direction (Z) of the rear shell (4) and are fastened together by screws to form a complete rear shell (4).

15. The charging module according to claim 12, characterized in that: The rear housing (4) has a first wall (4a) and a second wall (4b) which are opposite to each other in the height direction (Z) thereof, and a mating port (404) suitable for mating with the rear end of the main housing (5) of the charging device is formed on the first wall (4a) of the rear housing (4); A buckle (41) is formed on the mating port (404) of the rear shell (4), and the buckle (41) has a slot (41a) suitable for engaging with a protrusion (5a) on the rear end of the main shell (5) to fix the rear shell (4) to the rear end of the main shell (5).

16. The charging module according to claim 15, characterized in that: The connection terminal (2) has a connection end (22) for electrically connecting to a charging terminal of the charging device, and a connection hole (22a) is formed on the connection end (22) for allowing a threaded connection member to pass through, so that the connection terminal (2) can be fastened to the charging terminal by the threaded connection member passing through the connection hole (22a); A mounting hole (401) is formed on the second wall (4b) of the rear housing (4) to allow the threaded connector to enter the rear housing (4) through the mounting hole (401) and fasten the connecting end (22) of the connecting terminal (2) to the charging terminal.

17. A charging device, characterized in that: include: Main housing(5); A charging terminal inserted into the main housing (5); and The charging module (200) according to any one of claims 11 to 16, wherein the rear housing (4) is mounted on the rear end of the main housing (5) and the connection terminal (2) is electrically connected to the charging terminal.

18. The charging device according to claim 17, characterized in that: The charging device is a charging seat suitable for mating with a charging gun, and the charging terminal is suitable for mating and connecting with a matching terminal in the charging gun.

19. The charging device according to claim 17, characterized in that: The charging device is a charging gun suitable for mating with a charging base, and the charging terminal is suitable for mating and connecting with a matching terminal in the charging base.

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