Cooling module, electrical connection module, and charging device

Abstract

To provide a cooling module, an electrical connection module, and a charging device, where a cooling module structure is simple and can be replaced separately, reducing maintenance costs of the charging device and making it very convenient to use.SOLUTION: A cooling module comprises: a cooling box comprising a containing chamber 101 for containing cooling liquid and an inlet pipe joint 11 and cooling core pipe joint 12 communicated with the containing chamber; and a fixing device which is detachably installed on the cooling box for fixing a single charging terminal 3 to the cooling box, so that the charging terminal is in thermal contact with the cooling box. The inlet pipe joint is used to connect with an inlet pipe 5 for supplying the cooling liquid, and the cooling core pipe joint is used to connect with a cooling core pipe 42 of a charging cable 4. So, the cooling liquid flows through the containing chamber and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims the benefit of Chinese Patent Application No. CN202311861680.1, filed on December 29, 2023, with the State Intellectual Property Office of China, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a cooling module, an electrical connection module including the cooling module, and a charging device including the electrical connection module.

Background Art

[0003] In the prior art, a charging pedestal typically includes a charging pedestal housing, charging terminals provided in the charging pedestal housing, and a charging cable electrically connected to the charging terminals. To improve the charging speed, it is necessary to increase the charging current. Currently, the requirements for the charging current have reached 600 A and may further increase to 1000 A in the future. When this high current flows through the charging cable and the charging terminals, it will cause a rapid increase in the temperature inside the charging pedestal housing and the temperature of the charging cable. To prevent excessive temperature rise, in the prior art, it is usually done to increase the diameter of the charging cable, but this will increase the volume and weight of the charging pedestal product and result in higher costs.

[0004] To improve the cooling performance of the charging pedestal, recently, a liquid - cooled charging pedestal has been proposed. The housing of the liquid - cooled charging pedestal has an accommodation chamber for accommodating a coolant. The accommodation chamber has an inflow pipe joint for connecting to a coolant inflow pipe and an outflow pipe joint for connecting to a coolant outflow pipe. This technical solution results in a complex housing structure of the charging pedestal and is very inconvenient to use because of the high subsequent maintenance cost.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention is made to overcome or mitigate at least one aspect of the above-mentioned difficulties.

Means for Solving the Problem

[0006] According to one aspect of the present invention, a cooling module is provided. The cooling module includes a housing chamber for containing a coolant, a cooling box having an inflow pipe joint and a cooling core pipe joint communicating with the housing chamber, and a fixing device removably installed on the cooling box for fixing a charging terminal in thermal contact with the cooling box. The inflow pipe joint is used to connect to an inflow pipe for supplying the coolant, and the cooling core pipe joint is used to connect to a cooling core pipe of a charging cable. Thus, the coolant can flow through the housing chamber and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.

[0007] According to an exemplary embodiment of the present invention, the cooling box includes a box body used to define the housing chamber and having an opening, and a cover plate installed at the opening of the box body. The fixing device is used to fix the charging terminal to the outer surface of the cover plate, and the cover plate is used to form thermal contact with the charging terminal. Thus, the heat of the charging terminal can be transferred to the coolant inside the cooling box through the cover plate.

[0008] According to another exemplary embodiment of the present invention, the inflow pipe joint and the cooling core pipe joint are integrally formed with the box body. Thus, the inflow pipe joint and the cooling core pipe joint become a part of the box body, or the inflow pipe joint and the cooling core pipe joint are respectively connected to the box body and communicate with the housing chamber.

[0009] According to another exemplary embodiment of the present invention, the cover plate is an insulating component that can conduct heat but not electricity, and the box body is an insulating component that can neither conduct heat nor electricity.

[0010] According to another exemplary embodiment of the present invention, the cover plate is a ceramic component that can conduct heat but not electricity, and the box body is an injection-molded component that can neither conduct heat nor electricity.

[0011] According to another exemplary embodiment of the present invention, the cooling box is provided around the opening of the box body, and further includes a sealing ring that is compressed between the box body and the cover plate to achieve sealing between the box body and the cover plate.

[0012] According to another exemplary embodiment of the present invention, a sealing ring installation groove is formed in at least one of the box body and the cover plate, and the sealing ring is disposed and installed in the sealing ring installation groove.

[0013] According to another exemplary embodiment of the present invention, a threaded hole is formed in the box body, a connection hole is formed in the cover plate, and the cooling module further includes a screw connection component that passes through the connection hole and is screwed into the threaded hole to fix the cover plate to the box body.

[0014] According to another exemplary embodiment of the present invention, the connection hole is a counterbore hole. Therefore, the head of the screw connection component is hidden in the connection hole, and the upper surface of the head of the screw connection component is lower than or flush with the outer surface of the cover plate. Therefore, the outer surface of the cover plate can surely form thermal contact with the charging terminal.

[0015] According to another exemplary embodiment of the present invention, the fixing device is a U-shaped component fixed to the box body, including a U-shaped component formed with screw connection holes, and a bolt connected to the screw connection holes for pressing the charging terminal against the cover plate of the cooling box so that a predetermined contact force is applied between the charging terminal and the cover plate.

[0016] According to another exemplary embodiment of the present invention, the U-shaped component includes a pair of side plates respectively fixed to both sides of the box body, and a top plate connected between the tops of the pair of side plates and facing the cover plate of the cooling box. The screw connection holes are formed in the top plate of the U-shaped component, and the axis of the screw connection holes is perpendicular to the outer surface of the cover plate.

[0017] According to another exemplary embodiment of the present invention, snap slots are respectively formed in the pair of side plates of the U-shaped component, and protrusions are respectively formed on both sides of the box body of the cooling box. The protrusions engage with the snap slots to fix the pair of side plates of the U-shaped component to both sides of the box body of the cooling box.

[0018] According to another aspect of the present invention, an electrical connection module is provided. The electrical connection module includes the above cooling module, a charging terminal fixed to the cooling box of the cooling module by the fixing device of the cooling module, a cooling core pipe connected to the cooling core pipe joint of the cooling module, and a charging cable including a conductor core connected to the charging terminal. The charging terminal is in thermal contact with the cooling box, and thus it is possible to transfer the heat of the charging terminal to the coolant inside the cooling box.

[0019] According to another exemplary embodiment of the present invention, the conductor core has a flat connection end portion, the charging terminal has a flat welding end portion, the connection end portion of the conductor core is overlapped and welded on the upper surface of the welding end portion of the charging terminal, and the bolt of the fixing device is pressed against the connection end portion of the conductor core, thereby pressing the welding end portion of the charging terminal against the cover plate of the cooling box through the connection end portion of the conductor core. Therefore, the bottom surface of the welding end portion of the charging terminal is in direct thermal contact with the outer surface of the cover plate.

[0020] According to another exemplary embodiment of the present invention, the conductor core of the charging cable is tubular, the cooling core pipe is provided in the tubular conductor core, and the charging cable also includes an outer insulating layer wound around the outside of the conductor core.

[0021] According to another exemplary embodiment of the present invention, the electrical connection module further includes an inflow pipe that is connected to the inflow pipe joint of the cooling module and is used to supply cooling liquid to the cooling core pipe of the cooling box and the charging cable.

[0022] According to another exemplary embodiment of the present invention, the electrical connection module further includes an elastic seal formed with a first through hole through which the charging cable can pass and a second through hole through which the inflow pipe can pass. The charging cable and the inflow pipe pass through the elastic seal, and the elastic seal is adapted to be installed in the rear port of the housing to seal the rear port of the housing of the charging device.

[0023] According to another exemplary embodiment of the present invention, the electrical connection module further includes a rear end cap formed with a third through hole through which the charging cable can pass and a fourth through hole through which the inflow pipe can pass. The charging cable and the inflow pipe pass through the rear end cap, and the rear end cap is adapted to be locked to the peripheral wall of the rear port of the housing to fix the elastic seal to the rear port of the housing.

[0024] According to another aspect of the present invention, a charging device is provided. The charging device includes a housing and the above-described electrical connection module inserted into the housing.

[0025] According to an exemplary embodiment of the present invention, the housing has a plurality of mounting holes, and the charging device includes a plurality of electrical connection modules respectively inserted into the plurality of mounting holes of the housing.

[0026] According to another exemplary embodiment of the present invention, the mounting hole has a front port and a rear port on opposite sides in the axial direction of the mounting hole. The electrical connection module is inserted into the mounting hole from the rear port of the mounting hole, and the charging terminal is suitable for connecting (joining, mating) with a mating terminal inserted from the front port of the mounting hole.

[0027] According to another exemplary embodiment of the present invention, the charging device is a charging pedestal suitable for connecting (joining, mating) with a charging gun, and the charging terminal is suitable for connecting with a mating terminal in the charging gun.

[0028] According to another exemplary embodiment of the present invention, the charging device is a charging gun suitable for connecting (joining, mating) with a charging pedestal, and the charging terminal is suitable for connecting with a mating terminal in the charging pedestal.

[0029] In the above-described exemplary embodiments according to the present invention, the cooling module structure in the charging device is simple and separately replaceable, thereby reducing maintenance costs at a later stage and making use very convenient.

[0030] The above and other features of the present invention will become more apparent by describing its exemplary embodiments in detail with reference to the accompanying drawings.

Brief Description of the Drawings

[0031]

Figure 1

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DETAILED DESCRIPTION OF THE INVENTION

[0032] With reference to the accompanying drawings, exemplary embodiments of the present disclosure will be described in detail below. In the drawings, like reference numerals refer to like elements. However, the present disclosure may be implemented in many different forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the present disclosure to those skilled in the art.

[0033] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown schematically in order to simplify the drawings.

[0034] According to the general concept of the present invention, a cooling module is provided. The cooling module includes a housing chamber for accommodating a coolant, a cooling box having an inlet pipe joint and a cooling core pipe joint communicating with the housing chamber, and a fixing device removably installed on the cooling box for fixing a charging terminal so that a single charging terminal is in thermal contact with the cooling box. The inlet pipe joint is used to connect to an inlet pipe for supplying the coolant, and the cooling core pipe joint is used to connect to a cooling core pipe of a charging cable. Thus, the coolant can flow through the housing chamber and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.

[0035] According to another general concept of the present invention, an electrical connection module is provided. The electrical connection module includes the above-mentioned cooling module, a charging terminal fixed to the cooling box of the cooling module by the fixing device of the cooling module, a cooling core pipe connected to the cooling core pipe joint of the cooling module, and a charging cable including a conductor core connected to the charging terminal. The charging terminal is in thermal contact with the cooling box, and thus, it is possible to transfer the heat of the charging terminal to the coolant inside the cooling box.

[0036] According to another general concept of the present invention, a charging device is provided. The charging device includes a housing and the above-mentioned electrical connection module inserted into the housing.

[0037] FIG. 1 shows an explanatory perspective view of an electrical connection module 200 according to an exemplary embodiment of the present invention. FIG. 2 shows a longitudinal sectional view of the electrical connection module 200 according to an exemplary embodiment of the present invention. FIG. 3 shows an explanatory exploded view of the electrical connection module 200 according to an exemplary embodiment of the present invention. FIG. 4 shows a sectional view of the electrical connection module 200 shown in FIG. 3. FIG. 5 shows an explanatory perspective view of a cooling module 100 according to an exemplary embodiment of the present invention. FIG. 6 shows an explanatory exploded view of the cooling module 100 according to an exemplary embodiment of the present invention.

[0038] As shown in FIGS. 1 to 6, in an exemplary embodiment of the present invention, a cooling module 100 is disclosed. The cooling module 100 includes a cooling box 1 and a fixing device 2. The cooling box 1 has a housing chamber 101 for housing a coolant, and an inflow pipe joint 11 and a cooling core pipe joint 12 that communicate with the housing chamber 101. The fixing device 2 used to fix the charging terminal 3 to the cooling box 1 is removably installed on the cooling box 1 so that a single charging terminal 3 is in thermal contact with the cooling box 1.

[0039] As shown in FIGS. 1 to 6, in the illustrated embodiment, the inflow pipe joint 11 is used to connect to an inflow pipe 5 for supplying a coolant, and the cooling core pipe joint 12 is used to connect to a cooling core pipe 42 of a charging cable 4. Therefore, the coolant can flow through the housing chamber 101 and the cooling core pipe 42 of the charging cable 4 to cool the charging terminal 3 and the charging cable 4.

[0040] As shown in FIGS. 1 to 6, in the illustrated embodiment, the cooling box 1 includes a box body 10 and a cover plate 13. The box body 10 is used to define the housing chamber 101 and has an opening 101a. The cover plate 13 is installed at the opening 101a of the box body 10 to cover the opening. The fixing device 2 is used to fix the charging terminal 3 to the outer surface of the cover plate 13. The cover plate 13 is used to form a thermal contact with the charging terminal 3. Therefore, the heat of the charging terminal 3 can be transmitted to the coolant inside the cooling box 1 through the cover plate 13.

[0041] As shown in FIGS. 1 to 6, in the illustrated embodiment, the inflow pipe joint 11 and the cooling core pipe joint 12 are integrally formed with the box body 10. Therefore, the inflow pipe joint 11 and the cooling core pipe joint 12 are part of the box body 10. However, the present invention is not limited to the illustrated embodiment. For example, the inflow pipe joint 11 and the cooling core pipe joint 12 may be connected to the box body 10 respectively and communicate with the accommodation chamber 101.

[0042] As shown in FIGS. 1 to 6, in the illustrated embodiment, the cover plate 13 is an insulating component that can conduct heat but not electricity, and the box body 10 is an insulating component that can neither conduct heat nor electricity. For example, the cover plate 13 may be a ceramic component that can conduct heat but not electricity, and the box body 10 may be an injection-molded component that can neither conduct heat nor electricity.

[0043] As shown in FIGS. 1 to 6, in the illustrated embodiment, the cooling box 1 is disposed around the opening 101a of the box body 10, and further includes a sealing ring 14 that is compressed between the box body 10 and the cover plate 13 to realize the sealing between the box body 10 and the cover plate 13.

[0044] As shown in FIGS. 1 to 6, in the illustrated embodiment, a sealing ring installation groove 104 is formed in at least one of the box body 10 and the cover plate 13, and the sealing ring 14 is disposed and installed in the sealing ring installation groove 104.

[0045] As shown in FIGS. 1 to 6, in the illustrated embodiment, a screw hole 102 is formed in the box body 10, and a connection hole 131 is formed in the cover plate 13. The cooling module 100 also includes a screw connection component 15 that passes through the connection hole 131 and is screwed into the screw hole 102 to fix the cover plate 13 to the box body 10.

[0046] As shown in FIGS. 1 to 6, in the illustrated embodiment, the connection hole 131 is a counterbore hole. Therefore, the head 15a of the screw connection component 15 is hidden in the connection hole 131. The upper surface of the head 15a of the screw connection component 15 is lower than or flush with the outer surface of the cover plate 13. Therefore, the outer surface of the cover plate 13 can surely form thermal contact with the charging terminal 3.

[0047] As shown in FIGS. 1 to 6, in the illustrated embodiment, the fixing device 2 includes a U-shaped component 20 and a bolt 23. The U-shaped component 20 is fixed to the box body 10, and a screw connection hole 201 is formed therein. The bolt 23 used to press the charging terminal 3 against the cover plate 13 of the cooling box 1 so that a predetermined contact force is applied between the charging terminal 3 and the cover plate 13 is connected to the screw connection hole 201. In the illustrated embodiment, in order to improve the rigidity of the cover plate 13, a support wall 105 is formed inside the box body 10, and the support wall 105 is supported on the inner surface of the cover plate 13 to prevent deformation of the cover plate 13.

[0048] As shown in FIGS. 1 to 6, in the illustrated embodiment, the U-shaped component 20 includes a pair of side plates 21 and a top plate 22. The pair of side plates 21 are respectively fixed to both side portions of the box body 10. The top plate 22 is connected between the tops of the pair of side plates 21 and faces the cover plate 13 of the cooling box 1. The screw connection hole 201 is formed in the top plate 22 of the U-shaped component 20, and its axis is perpendicular to the outer surface of the cover plate 13.

[0049] As shown in FIGS. 1 to 6, in the illustrated embodiment, snap slots 213 are respectively formed in the pair of side plates 21 of the U-shaped component 20, and protrusions 103 are respectively formed on both side portions of the box body 10 of the cooling box 1. The protrusions 103 engage with the slots 213 to fix the pair of side plates 21 of the U-shaped component 20 to both side portions of the box body 10 of the cooling box 1.

[0050] As shown in FIGS. 1 to 6, in another exemplary embodiment of the present invention, an electrical connection module 200 is also disclosed. The electrical connection module includes a cooling module 100, a charging terminal 3, and a charging cable 4. The charging terminal 3 is fixed to the cooling box 1 of the cooling module 100 by a fixing device 2 of the cooling module 100. The charging cable 4 includes a cooling core pipe 42 connected to the cooling core pipe joint 12 of the cooling module 100 and a conductor core 41 connected to the charging terminal 3. The charging terminal 3 is in thermal contact with the cooling box 1, thereby enabling the heat of the charging terminal 3 to be transferred to the coolant inside the cooling box 1.

[0051] As shown in FIGS. 1 to 6, in the illustrated embodiment, the conductor core 41 has a flat connection end 41b, and the charging terminal 3 has a flat welding end 31a. The connection end 41a of the conductor core 41 is overlapped and welded on the upper surface of the welding end 31a of the charging terminal 3. The bolt 23 of the fixing device 2 is pressed against the connection end 41a of the conductor core 41, thereby pressing the welding end 31a of the charging terminal 3 against the cover plate 13 of the cooling box 1 through the connection end 41a of the conductor core 41. Therefore, the bottom surface of the welding end 31a of the charging terminal 3 is in direct thermal contact with the outer surface of the cover plate 13.

[0052] As shown in FIGS. 1 to 6, in the illustrated embodiment, the conductor core 41 of the charging cable 4 is tubular, and the cooling core pipe 42 is provided on the tubular conductor core 41. The charging cable 4 also includes an outer insulating layer 43 wound around the outside of the conductor core 41.

[0053] As shown in FIGS. 1 to 6, in the illustrated embodiment, the electrical connection module 200 further includes an inflow pipe 5 connected to the inflow pipe joint 11 of the cooling module 100 to supply coolant to the cooling box 1 and the cooling core pipe 42 of the charging cable 4.

[0054] FIG. 7 shows an explanatory perspective view of an electrical connection module 200 according to an exemplary embodiment of the present invention, in which an elastic seal 6 and a rear end cap 7 are shown. FIG. 8 shows a longitudinal sectional view of a charging device according to an exemplary embodiment of the present invention.

[0055] As shown in FIGS. 1 to 8, in the illustrated embodiment, the electrical connection module 200 further includes an elastic seal 6 having a first through hole 61 through which the charging cable 4 can pass and a second through hole 62 through which the liquid inflow pipe 5 can pass. The charging cable 4 and the inflow pipe 5 pass through the elastic seal 6, and the elastic seal 6 is suitable for being installed in the rear port 801 of the housing 8 to seal the rear port 801 of the charging device housing 8.

[0056] As shown in FIGS. 1 to 8, in the illustrated embodiment, the electrical connection module 200 further includes a rear end cap 7 having a third through hole 71 through which the charging cable 4 can pass and a fourth through hole 72 through which the liquid inflow pipe 5 can pass. The charging cable 4 and the inflow pipe 5 pass through the rear end cap 7 which is adapted to be locked to the peripheral wall of the rear port 801 of the housing 8 to fix the elastic seal 6 to the rear port 801 of the housing 8.

[0057] As shown in FIGS. 1 to 8, in another exemplary embodiment of the present invention, a charging device is also disclosed. The charging device includes a housing 8 and an electrical connection module 200, and the electrical connection module 200 is inserted into the housing 8.

[0058] As shown in FIGS. 1 to 8, in the illustrated embodiment, the housing 8 has a plurality of mounting holes 81, and the charging device includes a plurality of electrical connection modules 200 respectively inserted into the plurality of mounting holes 81 of the housing 8.

[0059] As shown in FIGS. 1 to 8, in the illustrated embodiment, the mounting hole 81 has a front port and a rear port 801 that are on opposite sides in the axial direction of the mounting hole 81. The electrical connection module 200 is inserted into the mounting hole 81 from the rear port 801 of the mounting hole 81, and the charging terminal 3 is suitable for connecting to a mating terminal (not shown) inserted from the front port of the mounting hole 81.

[0060] As shown in FIGS. 1 to 8, in an exemplary embodiment, the charging device is a charging pedestal suitable for connecting to a charging gun, and the charging terminal 3 is suitable for connecting to a mating terminal in the charging gun.

[0061] As shown in FIGS. 1 to 8, in another exemplary embodiment, the charging device is a charging gun suitable for connecting to a charging pedestal, and the charging terminal 3 is suitable for connecting to a mating terminal in the charging pedestal.

[0062] It should be understood by those skilled in the art that the above embodiments are intended to be illustrative rather than limiting. For example, numerous modifications may be made by those skilled in the art to the above embodiments, and various features described in the various embodiments may be freely combined with each other as long as they do not conflict in configuration or principle.

[0063] Although several exemplary embodiments have been shown and described, it will be understood by those skilled in the art that various changes or modifications may be made to these embodiments without departing from the principles and spirit of the present disclosure. The scope of the present disclosure is defined in the claims and their equivalents.

[0064] As used herein, an element described in the singular and preceded by the word "a" should be understood not to exclude a plurality of such elements or steps, unless explicitly stated to the contrary. Further, the description of "an embodiment" of the present invention is not intended to be construed as excluding the existence of further embodiments that incorporate the same described features. Additionally, unless otherwise explicitly stated, an embodiment "comprising" or "having" an element or elements with a particular property may include further such elements that do not have that property.

Claims

1. A cooling box (1) comprising a receiving chamber (101) for containing a coolant, and an inlet pipe joint (11) and a cooling core pipe joint (12) communicating with the receiving chamber (101), A fixing device (2) removably installed on the cooling box (1) for fixing the charging terminal (3) to the cooling box (1) such that a single charging terminal (3) is in thermal contact with the cooling box (1), A cooling module comprising: The inlet pipe joint (11) is used for connection with an inlet pipe (5) for supplying the coolant, and the cooling core pipe joint (12) is used for connection with a cooling core pipe (42) of a charging cable (4). Accordingly, the coolant can flow through the receiving chamber (101) and the cooling core pipe (42) of the charging cable (4) to cool the charging terminal (3) and the charging cable (4). Cooling module.

2. The cooling box (1) is A box body (10) used for defining the receiving chamber (101) and having an opening (101a), A cover plate (13) installed at the opening (101a) of the box body (10), Comprising: The fixing device (2) is used for fixing the charging terminal (3) to the outer surface of the cover plate (13), and the cover plate (13) is used for forming thermal contact with the charging terminal (3). Accordingly, the heat of the charging terminal (3) can be transmitted to the coolant inside the cooling box (1) through the cover plate (13). The cooling module according to Claim 1.

3. The inlet pipe joint (11) and the cooling core pipe joint (12) are integrally formed with the box body (10). Accordingly, the inlet pipe joint (11) and the cooling core pipe joint (12) form part of the box body (10), or The inlet pipe joint (11) and the cooling core pipe joint (12) are respectively connected to the box body (10) and communicate with the receiving chamber (101). The cooling module according to Claim 2.

4. The cover plate (13) is an insulating component that can conduct heat but not electricity, and the box body (10) is an insulating component that can neither conduct heat nor electricity. The cooling module according to claim 2.

5. The cover plate (13) is a ceramic component that can conduct heat but not electricity, and the box body (10) is an injection-molded component that can neither conduct heat nor electricity. The cooling module according to claim 2.

6. The cooling box (1) A sealing ring (14) provided around the opening (101a) of the box body (10) and compressed between the box body (10) and the cover plate (13) to achieve sealing between the box body (10) and the cover plate (13). further comprises The cooling module according to claim 2.

7. A sealing ring installation groove (104) is formed in at least one of the box body (10) and the cover plate (13), and the sealing ring (14) is disposed and installed in the sealing ring installation groove (104). The cooling module according to claim 6.

8. A screw hole (102) is formed in the box body (10), a connection hole (131) is formed in the cover plate (13), and the cooling module (100) further comprises a screw connection component (15) that passes through the connection hole (131) and is screwed into the screw hole (102) to fix the cover plate (13) to the box body (10). The cooling module according to claim 2.

9. The connection hole (131) is a counterbore hole, and thus the head (15a) of the screw connection component (15) is hidden in the connection hole (131). The upper surface of the head (15a) of the screw connection component (15) is lower than or flush with the outer surface of the cover plate (13), and thus the outer surface of the cover plate (13) can surely form thermal contact with the charging terminal (3). The cooling module according to claim 8.

10. The fixing device (2) is a U-shaped component (20) fixed to the box body (10), the U-shaped component (20) having a screw connection hole (201) formed therein. A bolt (23) connected to the screw connection hole (201) for pressing the charging terminal (3) against the cover plate (13) of the cooling box (1) so that a predetermined contact force is applied between the charging terminal (3) and the cover plate (13). Comprising The cooling module according to claim 2.

11. The U-shaped component (20) is A pair of side plates (21) respectively fixed to both sides of the box body (10), A top plate (22) connected between the tops of the pair of side plates (21) and facing the cover plate (13) of the cooling box (1). Comprising The screw connection hole (201) is formed in the top plate (22) of the U-shaped component (20), and the axis of the screw connection hole (201) is perpendicular to the outer surface of the cover plate (13). The cooling module according to claim 10.

12. Snap slots (213) are respectively formed in the pair of side plates (21) of the U-shaped component (20), and protrusions (103) are respectively formed on both sides of the box body (10) of the cooling box (1). The protrusions (103) engage with the snap slots (213) to fix the pair of side plates (21) of the U-shaped component (20) to both sides of the box body (10) of the cooling box (1). The cooling module according to claim 11.

13. The cooling module (100) according to any one of claims 1 to 12, A charging terminal (3) fixed to the cooling box (1) of the cooling module (100) by the fixing device (2) of the cooling module (100), A charging cable (4) comprising a cooling core pipe (42) connected to the cooling core pipe joint (12) of the cooling module (100) and a conductor core (41) connected to the charging terminal (3). An electrical connection module comprising The charging terminal (3) is in thermal contact with the cooling box (1), and thus, the heat of the charging terminal (3) can be transferred to the coolant inside the cooling box (1). Electrical connection module.

14. The conductor core (41) has a flat connection end portion (41a), the charging terminal (3) has a flat welding end portion (31a), and the connection end portion (41a) of the conductor core (41) is overlapped and welded on the upper surface of the welding end portion (31a) of the charging terminal (3). The bolt (23) of the fixing device (2) is pressed against the connection end portion (11a) of the conductor core (41), so that the welding end portion (31) of the charging terminal (3) is pressed against the cover plate (13) of the cooling box (1) through the connection end portion (41) of the conductor core (41). Therefore, the bottom surface of the welding end portion (31) of the charging terminal (3) is in direct thermal contact with the outer surface of the cover plate (13). The electrical connection module according to claim 13.

15. The conductor core (41) of the charging cable (4) is tubular, the cooling core pipe (42) is provided in the tubular conductor core (41), and the charging cable (4) also includes an external insulating layer (43) wound around the outside of the conductor core (41). The electrical connection module according to claim 13.

16. An inflow pipe (5) connected to the inflow pipe joint (11) of the cooling module (100) and used to supply a coolant to the cooling box (1) and the cooling core pipe (42) of the charging cable (4). The electrical connection module according to claim 13, further comprising.

17. An elastic seal (6) in which a first through hole (61) through which the charging cable (4) can pass and a second through hole (62) through which the inflow pipe (5) can pass are formed. Further comprising The charging cable (4) and the inflow pipe (5) pass through the elastic seal (6), and the elastic seal (6) is adapted to be installed at the rear port (801) of the housing (8) of the charging device to seal the rear port (801) of the housing (8). The electrical connection module according to claim 16.

18. A rear end cap (7) in which a third through hole (71) through which the charging cable (4) can pass and a fourth through hole (72) through which the inflow pipe (5) can pass are formed. Further comprising The charging cable (4) and the inflow pipe (5) pass through the rear end cap (7), and the rear end cap (7) is adapted to be locked to the peripheral wall of the rear port (801) of the housing (8) to fix the elastic seal (6) to the rear port (801) of the housing (8). The electrical connection module according to claim 17.

19. A housing (8), the electrical connection module (200) according to any one of claims 13 to 18, inserted into the housing (8), A charging device comprising the same.

20. The housing (8) has a plurality of mounting holes (81), and the charging device comprises a plurality of electrical connection modules (200) respectively inserted into the plurality of mounting holes (81) of the housing (8). The charging device according to claim 19.

21. The mounting hole (81) has a front port and a rear port (801) on opposite sides in the axial direction of the mounting hole (81). The electrical connection module (200) is inserted into the mounting hole (81) from the rear port (801) of the mounting hole (81), and the charging terminal (3) is suitable for connecting to a mating terminal inserted from the front port of the mounting hole (81). The charging device according to claim 20.

22. The charging device is a charging pedestal suitable for connecting to a charging gun, and the charging terminal (3) is suitable for connecting to a mating terminal in the charging gun. The charging device according to claim 19.

23. The charging device is a charging gun suitable for connecting to a charging pedestal, and the charging terminal (3) is suitable for connecting to a mating terminal in the charging pedestal. The charging device according to claim 19.

Images