Cooling module, electrical connection module, and charging device

Abstract

To ensure reliable thermal contact between a flat end of a charging terminal and a cooling box.SOLUTION: An inlet pipe joint is used to connect with an inlet pipe 5 for supplying cooling liquid. A cooling core pipe joint is used to connect with a cooling core pipe of a charging cable 4. A first bolt 23 is adapted to push a flat end 31 along the thickness direction of a flat end 31 of a charging terminal onto a cooling box. So a bottom surface of the flat end 31 is in thermal contact with the cooling box and a second bolt 24 is adapted to engage with a positioning slot on a side of the flat end 31 to prevent the charging terminal from being moved relative to the cooling box in a direction perpendicular to the thickness direction of the flat end 31.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims the benefit of Chinese Patent Application No. CN202311861483.X, 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 are up to 600 A, and this 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 will result 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 reduce 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 accommodating a coolant, a cooling box having an inflow pipe joint and a cooling core pipe joint communicating with the housing chamber, a bracket installed on the cooling box, and a fixing device including a first bolt and a second bolt screwed into the bracket. The inflow pipe joint is used to connect to an inflow pipe for supplying the coolant, the cooling core pipe joint is used to connect to the cooling core pipe of a charging cable, the first bolt is adapted to press the flat end against the cooling box along the thickness direction of the flat end of the charging terminal, and thus the bottom surface of the flat end is in thermal contact with the cooling box. The second bolt is adapted to engage with a positioning slot on the side of the flat end to prevent the charging terminal from moving relative to the cooling box in a direction perpendicular to the thickness direction of the flat end.

[0007] According to another exemplary embodiment of the present invention, the fixing device includes two second bolts adapted to engage with two positioning slots respectively formed on the sides opposite to the flat end.

[0008] According to another exemplary embodiment of the present invention, the first bolt is disposed between the two second bolts, and the central axes of the first bolt and the second bolts extend along the thickness direction of the flat end.

[0009] According to another exemplary embodiment of the present invention, the bracket is removably installed on the cooling box, enabling the fixing device to be disassembled and replaced.

[0010] According to another exemplary embodiment of the present invention, the cooling box includes a box body having a top opening for defining a receiving chamber, and a cover plate installed at the top opening of the box body. The fixing device is used to fix the flat end to the upper surface of the cover plate, and the cover plate is used to form a thermal contact with the flat end. Therefore, it is possible to transfer the heat of the charging terminal to the coolant inside the cooling box through the cover plate.

[0011] According to another exemplary embodiment of the present invention, the bracket is fixed to the box body, and a first screw hole and a second screw hole are formed in the bracket. The first bolt is screwed into the first screw hole, and the second bolt is screwed into the second screw hole.

[0012] According to another exemplary embodiment of the present invention, the bracket 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 first screw hole and the second screw hole are formed in the top plate of the bracket.

[0013] According to another exemplary embodiment of the present invention, two second screw holes are formed in the top plate of the bracket. The fixing device includes two second bolts respectively screwed into the two second screw holes. The first screw hole is formed at the center of the top plate, and the two second screw holes are respectively near the pair of side plates.

[0014] According to another exemplary embodiment of the present invention, snap slots are respectively formed in the pair of side plates of the bracket, 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 bracket to both sides of the box body of the cooling box.

[0015] According to another exemplary embodiment of the present invention, the inlet pipe joint and the cooling core pipe joint are integrally formed with the box body. Therefore, the inlet pipe joint and the cooling core pipe joint become a part of the box body, or the inlet pipe joint and the cooling core pipe joint are respectively connected to the box body and communicate with the accommodation chamber.

[0016] According to another exemplary embodiment of the present invention, the cover plate is an insulating component that can conduct heat but cannot conduct electricity, and the box body is an insulating component that cannot conduct heat and electricity.

[0017] According to another exemplary embodiment of the present invention, the cover plate is a ceramic component that can conduct heat but cannot conduct electricity, and the box body is an injection-molded component that cannot conduct heat and electricity.

[0018] 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 realize the sealing between the box body and the cover plate.

[0019] 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 arranged and installed in the sealing ring installation groove.

[0020] According to another exemplary embodiment of the present invention, a first screw connection hole is formed in the box body, a second screw connection hole corresponding to the first screw connection hole is formed in the cover plate, and the cooling module further includes a screw connection component connected to the first screw connection hole and the second screw connection hole to fix the cover plate to the box body.

[0021] According to another exemplary embodiment of the present invention, a positioning detent hole is formed in the upper surface of the cover plate of the cooling box, and the end of the second bolt engages with the positioning detent hole to prevent the second bolt from moving in a direction perpendicular to the flat end.

[0022] According to another aspect of the present invention, an electrical connection module is provided. The electrical connection module includes a cooling module, a charging terminal having a flat end and a positioning slot formed in a side portion of the flat end for engaging with a second bolt 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 flat end of the charging terminal. The flat end of the charging terminal is fixed to the cooling box by a fixing device, and thus, it is possible to transfer the heat of the charging terminal to the coolant inside the cooling box.

[0023] According to another exemplary embodiment of the present invention, the flat end of the charging terminal has an upper surface and a bottom surface on opposite sides in the thickness direction of the flat end and two side portions on opposite sides in the width direction of the flat end, and the positioning slots are respectively formed on both side portions of the flat end of the charging terminal, and the positioning slots penetrate the flat end in the thickness direction.

[0024] According to another exemplary embodiment of the present invention, the cross-section of the positioning slot is semi-circular or a sector with a central angle greater than 180 degrees.

[0025] According to another exemplary embodiment of the present invention, the conductor core has a flat connection end, the connection end of the conductor core is overlapped and welded on the upper surface of the flat end of the charging terminal, the first bolt of the fixing device is pressed against the connection end of the conductor core, and the flat end of the charging terminal is pressed against the cooling box through the connection end of the conductor core. Thus, the bottom surface of the flat end of the charging terminal is in direct thermal contact with the cooling box.

[0026] 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 external insulation layer wound around the outside of the conductor core.

[0027] According to another exemplary embodiment of the present invention, the electrical connection module further includes an inlet pipe that is connected to the inlet pipe joint of the cooling module and is used to supply a coolant to the cooling box and the cooling core pipe of the charging cable.

[0028] According to another exemplary embodiment of the present invention, the electrical connection module further includes an elastic seal in which a first through hole through which the charging cable can pass and a second through hole through which the inlet pipe can pass are formed. The charging cable and the inlet pipe pass through the elastic seal, and the elastic seal is adapted to be installed at the rear port of the housing to seal the rear port of the housing of the charging device.

[0029] According to another aspect of the present invention, a charging device is provided. The charging device includes a housing and the above electrical connection module inserted into the housing.

[0030] 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.

[0031] 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, fitting, mating) with the mating terminal inserted from the front port of the mounting hole.

[0032] 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.

[0033] 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.

[0034] In the above-described exemplary embodiment according to the present invention, the fixing device in the cooling module can securely fix the flat end of the charging terminal to the cooling box. Therefore, the flat end of the charging terminal is immovable relative to the cooling box, thereby ensuring reliable thermal contact between the flat end of the charging terminal and the cooling box. In addition, in 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.

[0035] 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

[0036]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

DETAILED DESCRIPTION OF THE INVENTION

[0037] Exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. 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.

[0038] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It will be apparent, however, 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.

[0039] According to a general concept 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 inlet pipe joint and a cooling core pipe joint communicating with the housing chamber, a bracket installed on the cooling box, and a fixing device including a first bolt and a second bolt screwed into the bracket. The inflow pipe joint is used to connect to an inflow pipe for supplying a coolant, the cooling core pipe joint is used to connect to a cooling core pipe of a charging cable, the first bolt is adapted to press the flat end against the cooling box along the thickness direction of the flat end of the charging terminal, thus the bottom surface of the flat end is in thermal contact with the cooling box, and the second bolt is adapted to engage with a positioning slot on the side of the flat end to prevent the charging terminal from moving relative to the cooling box in a direction perpendicular to the thickness direction of the flat end.

[0040] According to another general concept of the present invention, an electrical connection module is provided. The electrical connection module includes a cooling module, a charging terminal having a flat end and a positioning slot formed on the side of the flat end for engaging with a second bolt 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 flat end of the charging terminal. The flat end of the charging terminal is fixed to the cooling box by a fixing device, and thus it is possible to transfer the heat of the charging terminal to the coolant inside the cooling box.

[0041] According to another general concept 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.

[0042] 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 a cross-sectional view of the electrical connection module 200 according to an exemplary embodiment of the present invention. FIG. 4 shows an explanatory exploded view of the electrical connection module 200 according to an exemplary embodiment of the present invention. FIG. 5 shows an explanatory exploded view of a cooling module 100 and a charging terminal 3 according to an exemplary embodiment of the present invention. FIG. 6 shows an explanatory perspective view of the cooling module 100 according to an exemplary embodiment of the present invention. FIG. 7 shows an explanatory exploded view of the cooling module 100 according to an exemplary embodiment of the present invention. FIG. 8 shows an exploded sectional view of the cooling module 100 according to an exemplary embodiment of the present invention.

[0043] As shown in FIGS. 1 to 8, 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 accommodating a coolant, as well as an inflow pipe joint 11 and a cooling core pipe joint 12 that communicate with the housing chamber 101. The fixing device 2 includes a bracket 20 installed on the cooling box 1, and a first bolt 23 and a second bolt 24 screwed into the bracket 20. The first bolt 23 is suitable for pressing the flat end 31 of the charging terminal 3 against the cooling box 1 along the thickness direction of the flat end 31. Therefore, the bottom surface of the flat end 31 of the charging terminal 3 is in thermal contact with the cooling box 1. The second bolt 24 is suitable for engaging with a positioning slot 31a on the side of the flat end 31 of the charging terminal 3 in order to prevent the charging terminal 3 from moving relative to the cooling box body 10 in a direction perpendicular to the thickness direction of the flat end 31. In the illustrated embodiment, the second bolt 24 engages with the positioning slot 31 so that the charging terminal 3 cannot move in the width and length directions of the flat end 31.

[0044] As shown in FIGS. 1 to 8, in the illustrated embodiment, the inflow pipe joint 11 is used to connect to the inflow pipe 5 for supplying the coolant, and the cooling core pipe joint 12 is used to connect to the cooling core pipe 42 of the charging cable 4. Therefore, the coolant can flow through the accommodation chamber 101 and the cooling core pipe 42 of the charging cable 4 to cool the charging terminal 3 and the charging cable 4.

[0045] As shown in FIGS. 1 to 8, in the illustrated embodiment, the fixing device 2 includes two second bolts 24 adapted to engage with two positioning slots 31a respectively formed on the side opposite to the flat end 31.

[0046] As shown in FIGS. 1 to 8, in the illustrated embodiment, the first bolt 23 is disposed between the two second bolts 24, and the central axes of the first bolt 23 and the second bolts 24 extend along the thickness direction of the flat end.

[0047] As shown in FIGS. 1 to 8, in the illustrated embodiment, the bracket 20 is removably attached to the cooling box 1, enabling the fixing device 2 to be disassembled and replaced.

[0048] As shown in FIGS. 1 to 8, 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 accommodation chamber 101 and has a top opening 101a. The cover plate 13 is installed at the top opening 101a of the box body 10 to cover the top opening 101a. The fixing device 2 is used to fix the flat end 31 of the charging terminal 3 to the upper surface of the cover plate 13, and the cover plate 13 is used to form a thermal contact with the flat end 31. Therefore, the heat of the charging terminal 3 can be transmitted to the coolant inside the cooling box 1 through the cover plate 13.

[0049] As shown in FIGS. 1 to 8, in the illustrated embodiment, the bracket 20 is fixed to the box body 10, and a first screw hole 201 and a second screw hole 22 are formed in the bracket 20. The first bolt 23 is screwed into the first screw hole 201, and the second bolt 24 is screwed into the second screw hole 22.

[0050] As shown in FIGS. 1 to 8, in the illustrated embodiment, the bracket 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 first screw hole 201 and the second screw hole 22 are formed in the top plate 22 of the bracket 20.

[0051] As shown in FIGS. 1 to 8, in the illustrated embodiment, two second screw holes 22a are formed in the top plate 22 of the bracket 20, and the fixing device 2 includes two second bolts 24 respectively screwed into the two second screw holes 22a. The first screw hole 201 is formed at the center of the top plate 22, and the two second screw holes 22a are respectively arranged near the pair of side plates 21.

[0052] As shown in FIGS. 1 to 8, in the illustrated embodiment, snap slots 213 are respectively formed in the pair of side plates 21 of the bracket 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 snap slots 213 to fix the pair of side plates 21 of the bracket 20 to the two side portions of the box body 10 of the cooling box 1.

[0053] As shown in FIGS. 1 to 8, 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.

[0054] As shown in FIGS. 1 to 8, 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.

[0055] As shown in FIGS. 1 to 8, in the illustrated embodiment, the cooling box 1 is disposed around the top 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.

[0056] As shown in FIGS. 1 to 8, 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.

[0057] As shown in FIGS. 1 to 8, in the illustrated embodiment, a first screw connection hole 102 is formed in the box body 10, and a second screw connection hole 131 corresponding to the first screw connection hole 102 is formed in the cover plate 13. The cooling module 100 also includes a screw connection component 15 that is connected to the first screw connection hole 102 and the second screw connection hole 131 to fix the cover plate 13 to the box body 10.

[0058] As shown in FIGS. 1 to 8, in the illustrated embodiment, the positioning stop hole 13a is formed on the upper surface of the cover plate 13 of the cooling box 1, and the end of the second bolt 24 engages with the positioning stop hole 13a to prevent the second bolt 24 from moving in a direction perpendicular to the flat end of the charging terminal.

[0059] As shown in FIGS. 1 to 8, in another exemplary embodiment of the present invention, an electrical connection module 200 is also disclosed. The electrical connection module 200 includes a cooling module 100, a charging terminal 3, and a charging cable 4. The charging terminal 3 has a flat end 31, and a positioning slot 31a is formed on the side of the flat end 31 for engaging with the second bolt 24 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 flat end 31 of the charging terminal 3. The flat end 31 of the charging terminal 3 is fixed to the cooling box 1 by a fixing device 2, and thus, the heat of the charging terminal 3 can be transferred to the coolant inside the cooling box 1.

[0060] As shown in FIGS. 1 to 8, in the illustrated embodiment, the flat end 31 of the charging terminal 3 has an upper surface and a bottom surface on opposite sides in the thickness direction of the flat end 31 and two side portions on opposite sides in the width direction of the flat end 31. The positioning slots 31a are formed on both side portions of the flat end 31 of the charging terminal 3 and penetrate the flat end 31 in the thickness direction.

[0061] As shown in FIGS. 1 to 8, in the illustrated embodiment, the cross-section of the positioning slot 31a on the side of the flat end 31 of the charging terminal 3 is semi-circular or a sector with a central angle greater than 180 degrees.

[0062] As shown in FIGS. 1 to 8, in the illustrated embodiment, the conductor core 41 has a flat connection end 410, and the connection end 410 of the conductor core 41 is overlapped and welded to the upper surface of the flat end 31 of the charging terminal 3. The first bolt 23 of the fixing device 2 is pressed against the connection end 410 of the conductor core 41, pressing the flat end 31 of the charging terminal 3 against the cooling box 1 via the connection end 410 of the conductor core 41. Thus, the bottom surface of the flat end 31 of the charging terminal 3 is in direct thermal contact with the cooling box 1.

[0063] As shown in FIGS. 1 to 8, in the illustrated embodiment, the conductor core 41 of the charging cable 4 is tubular, and the cooling core pipe 42 is provided in 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.

[0064] As shown in FIGS. 1 to 8, 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 a coolant to the cooling box 1 and the cooling core pipe 42 of the charging cable 4.

[0065] FIG. 9 shows an explanatory perspective view of the electrical connection module 200 according to an exemplary embodiment of the present invention, in which the elastic seal 6 is shown. FIG. 10 shows a longitudinal sectional view of the charging device according to an exemplary embodiment of the present invention.

[0066] As shown in FIGS. 1 to 10, in the illustrated embodiment, the electrical connection module 200 further includes 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 liquid inflow tube 5 can pass are formed. 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 at the rear port 801 of the housing 8 of the charging device to seal the rear port 801.

[0067] As shown in FIGS. 1 to 10, 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.

[0068] As shown in FIGS. 1 to 10, 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 that are respectively inserted into the plurality of mounting holes 81 of the housing 8.

[0069] As shown in FIGS. 1 to 10, 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 inserted from the front port of the mounting hole 81.

[0070] As shown in FIGS. 1 to 10, in the illustrated 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.

[0071] As shown in FIGS. 1 to 10, in the illustrated 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.

[0072] 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.

[0073] Although several exemplary embodiments have been shown and described, those skilled in the art will understand 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.

[0074] As used herein, an element described in the singular and preceded by the word "a" should be understood as not excluding a plurality of such elements or steps, unless explicitly stated to the contrary. Further, the description of "one embodiment" of the present invention is not intended to be construed as excluding the existence of additional embodiments that also incorporate the described features. Additionally, unless otherwise explicitly stated, an embodiment "comprising" or "having" an element or elements with a particular property may include additional 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) comprising a bracket (20) installed on the cooling box (1), and a first bolt (23) and a second bolt (24) screwed into the bracket (20), A cooling module comprising: The inlet pipe joint (11) is used to connect with an inlet pipe (5) for supplying the coolant, and the cooling core pipe joint (12) is used to connect with a cooling core pipe (42) of a charging cable (4). The first bolt (23) is adapted to press the flat end portion (31) against the cooling box (1) along the thickness direction of the flat end portion (31) of the charging terminal (3). Thus, the bottom surface of the flat end portion (31) is in thermal contact with the cooling box (1). The second bolt (24) is adapted to engage with a positioning slot (31a) on the side portion of the flat end portion (31) to prevent the charging terminal (3) from moving relative to the cooling box (1) in a direction perpendicular to the thickness direction of the flat end portion (31). Cooling module.

2. The fixing device (2) comprises two second bolts (24) adapted to engage with two positioning slots (31a) respectively formed on the side portions opposite to the flat end portion (31). The cooling module according to Claim 1.

3. The first bolt (23) is disposed between the two second bolts (24), and the central axis of the first bolt (23) and the central axis of the second bolt (24) extend along the thickness direction of the flat end portion. The cooling module according to Claim 2.

4. The bracket (20) is removably installed on the cooling box (1), enabling the fixing device (2) to be disassembled and replaced. The cooling module according to Claim 1.

5. The cooling box (1) comprises: a box body (10) used to define the receiving chamber (101) and having a top opening (101a), a cover plate (13) installed on the top opening (101a) of the box body (10). Comprising: The fixing device (2) is used to fix the flat end portion (31) to the upper surface of the cover plate (13), and the cover plate (13) is used to form a thermal contact with the flat end portion (31). Therefore, 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 4.

6. The bracket (20) is fixed to the box body (10). The bracket (20) is formed with a first screw hole (201) and a second screw hole (22). The first bolt (23) is screwed into the first screw hole (201), and the second bolt (24) is screwed into the second screw hole (22). The cooling module according to claim 5.

7. The bracket (20) a pair of side plates (21) respectively fixed to both side portions 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) and includes The first screw hole (201) and the second screw hole (22) are formed in the top plate (22) of the bracket (20). The cooling module according to claim 6.

8. Two second screw holes (22a) are formed in the top plate (22) of the bracket (20). The fixing device (2) includes two second bolts (24) respectively screwed into the two second screw holes (22a). The first screw hole (201) is formed at the center of the top plate (22), and the two second screw holes (22a) are respectively near the pair of side plates (21). The cooling module according to claim 7.

9. Snap slots (213) are respectively formed in the pair of side plates (21) of the bracket (20). 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 snap slots (213) to fix the pair of side plates (21) of the bracket (20) to both side portions of the box body (10) of the cooling box (1). The cooling module according to claim 7.

10. The inlet pipe joint (11) and the cooling core pipe joint (12) are integrally formed with the box body (10). Therefore, the inlet pipe joint (11) and the cooling core pipe joint (12) become 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 accommodation chamber (101). The cooling module according to claim 5.

11. 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 cannot conduct heat and electricity. The cooling module according to claim 5.

12. 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 cannot conduct heat and electricity. The cooling module according to claim 5.

13. The cooling box (1) is provided around the opening (101a) of the box body (10) and is compressed between the box body (10) and the cover plate (13) to realize sealing between the box body (10) and the cover plate (13). A sealing ring (14) is further provided. The cooling module according to claim 5.

14. 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 13.

15. A first screw connection hole (102) is formed in the box body (10), and a second screw connection hole (131) corresponding to the first screw connection hole (102) is formed in the cover plate (13). The cooling module (100) further includes a screw connection component (15) connected to the first screw connection hole (102) and the second screw connection hole (131) to fix the cover plate (13) to the box body (10). The cooling module according to claim 5.

16. The positioning stop hole (13a) is formed on the upper surface of the cover plate (13) of the cooling box (1), and the end of the second bolt (24) engages with the positioning stop hole (13a) to prevent the second bolt (24) from moving in a direction perpendicular to the flat end (31). The cooling module according to any one of claims 5 to 15.

17. The cooling module (100) according to any one of claims 1 to 16, A charging terminal (3) having a flat end (31) and a positioning slot (31a) formed on a side portion of the flat end (31) for engaging with the second bolt (24) of the cooling module (100), A charging cable (4) including 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 flat end (31) of the charging terminal (3). An electrical connection module comprising: The flat end (31) of the charging terminal (3) is fixed to the cooling box (1) by the fixing device (2), and thus, it is possible to transfer the heat of the charging terminal (3) to the coolant inside the cooling box (1). Electrical connection module.

18. The flat end (31) of the charging terminal (3) has an upper surface and a bottom surface on opposite sides in the thickness direction of the flat end (31) and two side portions on opposite sides in the width direction of the flat end (31). The positioning slots (31a) are respectively formed on both side portions of the flat end (31) of the charging terminal (3), and the positioning slots (31a) penetrate the flat end (31) in the thickness direction. The electrical connection module according to claim 17.

19. The cross section of the positioning slot (31a) is semi-circular or a sector with a central angle greater than 180 degrees. The electrical connection module according to claim 18.

20. The conductor core (41) has a flat connection end (410), and the connection end (410) of the conductor core (41) is overlapped and welded to the upper surface of the flat end (31) of the charging terminal (3). The first bolt (23) of the fixing device (2) is pressed against the connection end portion (410) of the conductor core (41), thereby pressing the flat end portion (31) of the charging terminal (3) against the cooling box (1) via the connection end portion (410) of the conductor core (41). Accordingly, the bottom surface of the flat end portion (31) of the charging terminal (3) is in direct thermal contact with the cooling box (1). The electrical connection module according to claim 17.

21. 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 insulation layer (43) wound around the outside of the conductor core (41). The electrical connection module according to claim 17.

22. An inflow pipe (5) connected to the inflow pipe joint (11) of the cooling module (100) and used to supply coolant to the cooling box (1) and the cooling core pipe (42) of the charging cable (4). The electrical connection module according to claim 17, further comprising.

23. 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 in the rear port (801) of the housing (8) to seal the rear port (801) of the housing (8) of the charging device. The electrical connection module according to claim 22.

24. A housing (8); The electrical connection module (200) according to any one of claims 17 to 23, inserted into the housing (8). A charging device comprising.

25. 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). The charging device according to claim 24.

26. 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 inserted from the front port of the mounting hole (81). The charging device according to claim 25.

27. The charging device is a charging pedestal suitable for connection to a charging gun, and the charging terminal (3) is suitable for connection to a mating terminal in the charging gun. The charging device according to claim 24.

28. The charging device is a charging gun suitable for connection to a charging pedestal, and the charging terminal (3) is suitable for connection to a mating terminal in the charging pedestal. The charging device according to claim 24.

Images