Rear housing for charging seat, and charging seat

Abstract

To provide a charging seat enabling sufficient cooling of the interior of a charging seat and a charging cable.SOLUTION: A cooling chamber 20 is formed in a rear housing 2. The cooling chamber has an inlet pipe joint for connecting with an inlet pipe 4, and a cooling core pipe joint for connecting with a cooling core pipe 32 of a charging cable 3, so that a cooling liquid can flow through the cooling chamber of the rear housing and the cooling core pipe to cool the interior of a charging seat and the charging cable. The cooling chamber connects the cooling core pipe to a cooling circuit, allowing the cooling liquid to flow through the cooling chamber of the rear housing and the cooling core pipe. In some embodiments, the thermal conductive component in the charging seat can quickly transfer heat from a charging terminal to the cooling chamber, thereby improving the cooling effect of the charging seat.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202323197523.3, filed with the China National Intellectual Property Office on November 24, 2023, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a rear housing for a charging base and to a charging base comprising a rear housing. [Background technology]

[0003] In the prior art, a charging base typically includes a housing, a charging terminal provided in the housing, and a charging cable electrically connected to the charging terminal. In order to improve the charging speed, it is necessary to increase the charging current. Currently, the requirement for the charging current is as high as 600A, and may further increase to 1000A in the future. When this high current flows through the charging cable and the charging terminal, the temperature in the housing and the temperature of the charging cable will rise sharply. To prevent the excessive temperature rise, the existing technology typically increases the diameter of the charging cable, which increases the volume and weight of the charging base product and increases the cost. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT The present invention is directed to overcoming or alleviating at least one aspect of the above disadvantages. [Means for solving the problem]

[0005] According to an aspect of the present invention, a rear housing for a charging base is provided. A cooling chamber is formed in the rear housing of the charging base, the cooling chamber having an inlet pipe fitting for connecting to an inlet pipe and a cooling core pipe fitting for connecting to a cooling core pipe of a charging cable, so that a coolant can flow through the cooling chamber of the rear housing of the charging base and the cooling core pipe of the charging cable to cool the inside of the charging base and the charging cable.

[0006] According to an exemplary embodiment of the present invention, the cooling chamber has at least two cooling core tube fittings used to connect to the cooling core tubes of the at least two charging cables respectively, so that the coolant can flow through the cooling core tubes of the at least two charging cables simultaneously to cool the at least two charging cables.

[0007] According to another exemplary embodiment of the present invention, the cooling chamber has two cooling core fittings, which are disposed on either side of the inlet fitting and spaced a predetermined distance from the inlet fitting.

[0008] According to another aspect of the present invention, there is provided a charging base, the charging base comprising: a front housing, the above-mentioned rear housing assembled to a rear end of the front housing, a charging terminal provided on the front housing of the charging base, the rear end of the charging terminal extending into an internal cavity of the rear housing of the charging base, and a charging cable inserted into the internal cavity of the rear housing of the charging base and electrically connected to the rear end of the charging terminal. The charging cable includes a conductor and a cooling core tube, the front end of the conductor is electrically connected to the rear end of the charging terminal, and the cooling core tube is connected to a cooling core tube joint of a cooling chamber of the rear housing, so that a coolant can flow through the cooling chamber of the rear housing and the cooling core tube of the charging cable.

[0009] According to an exemplary embodiment of the present invention, the conductor of the charging cable is tubular, the cooling core tube is disposed in the conductor, and the charging cable also includes an outer insulation layer wrapped around the outside of the conductor.

[0010] According to another exemplary embodiment of the present invention, the front end of the conductor of the charging cable and the rear end of the charging terminal are flat and welded together.

[0011] According to another exemplary embodiment of the present invention, the charging base further comprises a thermally conductive component attached to an internal cavity of a rear housing of the charging base and in physical contact with both the rear end of the charging terminal and an outer wall surface of the cooling chamber to transfer heat from the rear end of the charging terminal to the cooling chamber.

[0012] According to another exemplary embodiment of the present invention, the front end of the conductor and the rear end of the charging terminal are encased in a thermally conductive part and are in thermal contact with an inner surface of the thermally conductive part, and the outer surface of the thermally conductive part is in thermal contact with an outer wall surface of the cooling chamber.

[0013] According to another exemplary embodiment of the present invention, the thermally conductive part has a pair of flat inner surfaces and a pair of flat outer surfaces opposite in a thickness direction of the rear end of the charging terminal, the pair of flat inner surfaces of the thermally conductive part being in thermal contact with the front end of the conductor and the rear end of the charging terminal, respectively, and one of the pair of flat outer surfaces of the thermally conductive part being in thermal contact with an outer wall surface of the cooling chamber.

[0014] According to another exemplary embodiment of the present invention, the charging base comprises a plurality of charging terminals, a plurality of charging cables, and a plurality of thermally conductive components, and the plurality of charging terminals are electrically connected to the plurality of charging cables respectively and thermally connected to the outer wall surface of the cooling chamber via corresponding thermally conductive components.

[0015] According to another exemplary embodiment of the present invention, a plurality of first snap slots are formed in a peripheral wall of a front end of the rear housing, the plurality of first snap slots being circumferentially spaced and distributed about the rear housing, and a plurality of first protrusions are formed on the rear end of the rear housing, the plurality of first protrusions respectively engaging with the plurality of first snap slots to secure the front end of the rear housing to the rear end of the front housing.

[0016] According to another exemplary embodiment of the present invention, the charging base further includes a signal terminal provided on a front housing of the charging base, the signal terminal having a rear end extending into a rear housing of the charging base, and a signal cable, the signal cable having one end extending into the rear housing of the charging base and electrically connected to the rear end of the signal terminal.

[0017] According to another exemplary embodiment of the present invention, the charging base further includes a rear cover attached to the rear opening of the rear housing to cover the rear opening of the rear housing, the rear cover being formed with a first through hole through which the charging cable can pass, a second through hole through which the signal cable can pass, and a third through hole through which the inlet pipe joint can pass.

[0018] According to another exemplary embodiment of the present invention, a plurality of second protrusions are formed on the rear end of the charging base housing, the plurality of second protrusions being circumferentially spaced apart from one another around the charging base housing, and a plurality of second snap slots are formed in the rear cover, the plurality of second snap slots respectively engaging with the plurality of second protrusions to secure the rear cover to the rear end of the rear housing.

[0019] According to another exemplary embodiment of the present invention, the charging base further comprises a sealing element attached to the rear mouth of the rear housing to seal the rear mouth of the rear housing, the charging cable, the signal cable and the inlet fitting pass through the sealing element, and the rear cover is pressed against the sealing element to position the sealing element at the rear mouth of the rear housing.

[0020] According to another exemplary embodiment of the present invention, the charging base further comprises an inlet tube, one end of which is connected to the inlet tube fitting, and the inlet tube is used for injecting cooling liquid into the cooling chamber.

[0021] According to another exemplary embodiment of the present invention, the cooling chamber also has a vent. The charging base further includes a sealing plug inserted into the vent and a sealing ring attached to the sealing plug. The sealing ring is compressed between the sealing plug and an inner wall of the vent to provide a seal between the sealing plug and the inner wall of the vent.

[0022] In the above exemplary embodiment according to the present invention, the cooling chamber of the rear housing of the charging base connects the cooling core tube of the charging cable to the cooling circuit, so that coolant can flow through the cooling chamber of the rear housing of the charging base and the cooling core tube of the charging cable, thereby sufficiently cooling the interior of the charging base and the charging cable.

[0023] In addition, in the above exemplary embodiments according to the present invention, the thermally conductive parts of the charging base can quickly transfer heat from the charging terminals to the cooling chamber, thereby improving the cooling effect of the charging base.

[0024] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a diagrammatic perspective view of a charging base in accordance with an exemplary embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention showing thermally conductive components. [Diagram 3] FIG. 2 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention showing a cooling core tube of the charging cable and a cooling core tube joint of the cooling chamber. [Figure 4] FIG. 13 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention showing an inlet fitting of the inlet pipe and a cooling chamber. [Diagram 5] FIG. 2 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention showing a cooling core tube of the charging cable, a cooling core tube fitting of the cooling chamber, an inlet tube, and an inlet tube fitting of the cooling chamber. [Figure 6] 1 is a cross-sectional view of a rear housing of a charging base according to an exemplary embodiment of the present invention showing a cooling core tube of the charging cable, a cooling core tube fitting of the cooling chamber, an inlet tube, and an inlet tube fitting of the cooling chamber. [Figure 7] 1 is a cross-sectional view of a rear housing of a charging base according to an exemplary embodiment of the present invention, showing a cooling core tube of the charging cable, a cooling core tube joint of the cooling chamber, and thermally conductive components. [Figure 8] 1 is a cross-sectional view of a rear housing of a charging base according to an exemplary embodiment of the present invention showing an inlet fitting of the inlet pipe and a cooling chamber. [Figure 9] FIG. 2 is an illustrative exploded view of a rear housing, charging cable, and inlet tube according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals refer to the same elements. However, the present disclosure may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0027] 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 diagrammatically shown in order to simplify the drawings.

[0028] According to the general concept of the present invention, a rear housing for a charging base is provided. A cooling chamber is formed in the rear housing of the charging base, and the cooling chamber has an inlet pipe joint for connecting to an inlet pipe and a cooling core pipe joint for connecting to a cooling core pipe of a charging cable, so that a coolant can flow through the cooling chamber of the rear housing of the charging base and the cooling core pipe of the charging cable to cool the inside of the charging base and the charging cable.

[0029] According to another general concept of the present invention, there is provided a charging base, the charging base comprising: a front housing, the above-mentioned rear housing assembled to a rear end of the front housing, a charging terminal provided on the front housing of the charging base, the rear end of the charging terminal extending into an internal cavity of the rear housing of the charging base, and a charging cable inserted into the internal cavity of the rear housing of the charging base and electrically connected to the rear end of the charging terminal. The charging cable includes a conductor and a cooling core tube, the front end of the conductor is electrically connected to the rear end of the charging terminal, and the cooling core tube is connected to a cooling core tube joint of a cooling chamber of the rear housing, so that a coolant can flow through the cooling chamber of the rear housing and the cooling core tube of the charging cable.

[0030] FIG. 1 is an explanatory perspective view of a charging base according to an exemplary embodiment of the present invention. FIG. 2 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention, showing a thermally conductive part 7. FIG. 3 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention, showing a cooling core tube 31 of a charging cable 3 and a cooling core tube joint 20a of a cooling chamber 20. FIG. 4 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention, showing an inlet tube joint 20b of an inlet tube 4 and a cooling chamber 20. FIG. 5 is a cross-sectional view of a charging base according to an exemplary embodiment of the present invention, showing a cooling core tube 32 of a charging cable 3, a cooling core tube joint 20a of a cooling chamber 20, an inlet tube 4, and an inlet tube joint 20b of a cooling chamber 20.

[0031] As shown in Figures 1 to 5, in an exemplary embodiment of the present invention, a rear housing 2 of a charging base is disclosed. A cooling chamber 20 is formed in the rear housing 2 of the charging base, and has an inlet pipe fitting 20b for connecting to the inlet pipe 4 and a cooling core pipe fitting 20a for connecting to the cooling core pipe 32 of the charging cable 3, so that a coolant can flow through the cooling chamber 20 of the rear housing 2 of the charging base and the cooling core pipe 32 of the charging cable 3 to cool the inside of the charging base and the charging cable 3.

[0032] FIG. 6 is a cross-sectional view of the rear housing 2 of the charging base according to an exemplary embodiment of the present invention, showing the cooling core tube 32 of the charging cable 3, the cooling core tube joint 20a of the cooling chamber 20, the inlet tube 4, and the inlet tube joint 20b of the cooling chamber 20. FIG. 7 is a cross-sectional view of the rear housing 2 of the charging base according to an exemplary embodiment of the present invention, showing the cooling core tube 32 of the charging cable 3, the cooling core tube joint 20a of the cooling chamber 20, and the thermally conductive part 7. FIG. 8 is a cross-sectional view of the rear housing 2 according to an exemplary embodiment of the present invention, showing the inlet tube 4 and the inlet tube joint 20b of the cooling chamber 20. FIG. 9 is an exploded view of the rear housing 2, the charging cable 3, and the inlet tube 4 according to an exemplary embodiment of the present invention.

[0033] As shown in Figures 1 to 9, in the illustrated embodiment, the cooling chamber 20 has at least two cooling core tube fittings 20a used to connect to the cooling core tubes 32 of the at least two charging cables 3 respectively, so that the coolant can flow through the cooling core tubes 32 of the at least two charging cables 3 simultaneously to cool the at least two charging cables 3 simultaneously.

[0034] As shown in Figures 1 to 9, in the illustrated embodiment, the cooling chamber 20 has two cooling core pipe fittings 20a, which are arranged on either side of the inlet pipe fitting 20b and spaced a predetermined distance from the inlet pipe fitting 20b.

[0035] As shown in Figs. 1-9, in another exemplary embodiment of the present invention, a charging base is also disclosed. The charging base includes a front housing 1, a rear housing 2, a charging terminal 11, and a charging cable 3. The rear housing 2 is assembled to the rear end of the front housing 1. The charging terminal 11 is provided on the front housing 1 of the charging base, and its rear end 11a extends into the internal cavity of the rear housing 2 of the charging base. The charging cable 3 extends into the internal cavity of the rear housing 2 of the charging base and is electrically connected to the rear end 11a of the charging terminal 11. The charging cable 3 includes a conductor 31 and a cooling core tube 32. The front end 31a of the conductor 31 is electrically connected to the rear end 11a of the charging terminal 11. The cooling core tube 32 is connected to the cooling core tube joint 20a of the cooling chamber 20 of the rear housing 2, so that the coolant can flow through the cooling chamber 20 of the rear housing 2 and the cooling core tube 32 of the charging cable 3.

[0036] As shown in Figures 1 to 9, in the illustrated embodiment, the conductor 31 of the charging cable 3 is tubular, the cooling core tube 32 is provided in the conductor 31, and the charging cable 3 also includes an outer insulating layer 33 wrapped around the outside of the conductor 31.

[0037] As shown in FIGS. 1 to 9, in the illustrated embodiment, a front end 31a of the conductor 31 of the charging cable 3 and a rear end 11a of the charging terminal 11 are flat and welded to each other.

[0038] As shown in Figures 1 to 9, in the illustrated embodiment, the charging base further includes a thermally conductive part 7, which is disposed in the internal cavity of the rear housing 2 of the charging base and is in physical contact with the rear end 11a of the charging terminal 11 and the outer wall surface of the cooling chamber 20, to transfer heat from the rear end 11a of the charging terminal 11 to the cooling chamber 20.

[0039] As shown in Figures 1 to 9, in the illustrated embodiment, the front end 31a of the conductor 31 and the rear end 11a of the charging terminal 11 are wrapped in the thermally conductive part 7 and are in thermal contact with the inner surface of the thermally conductive part 7, and the outer surface of the thermally conductive part 7 is in thermal contact with the outer wall surface of the cooling chamber 20.

[0040] 1 to 9, in the illustrated embodiment, the thermally conductive part 7 has a pair of flat inner surfaces and a pair of flat outer surfaces that are opposite in the thickness direction of the rear end 11a of the charging terminal 11. The pair of flat inner surfaces of the thermally conductive part 7 are in thermal contact with the front end 31a of the conductor 31 and the rear end 11a of the charging terminal 11, respectively. One of the pair of flat outer surfaces of the thermally conductive part 7 is in thermal contact with the outer wall surface of the cooling chamber 20.

[0041] 1 to 9, in the illustrated embodiment, the charging stand includes a plurality of charging terminals 11, a plurality of charging cables 3, and a plurality of thermally conductive parts 7. The plurality of charging terminals 11 are electrically connected to the plurality of charging cables 3, respectively, and are thermally connected to the outer wall surface of the cooling chamber 20 via the corresponding thermally conductive parts 7.

[0042] 1 to 9, in the illustrated embodiment, a plurality of first snap slots 2a are formed in the peripheral wall of the front end of the rear housing 2, and the plurality of first snap slots 2a are distributed at intervals in the circumferential direction of the rear housing 2. A plurality of first protrusions 1a are formed on the rear end of the rear housing 2 and engage with the plurality of first snap slots 2a, respectively, to fix the front end of the rear housing 2 to the rear end of the front housing 1.

[0043] 1 to 9, in the illustrated embodiment, the charging base further includes a signal terminal 12 and a signal cable 5. The signal terminal 12 is provided in a front housing 1 of the charging base, and a rear end portion thereof extends into a rear housing 2 of the charging base. One end portion of the signal cable 5 extends into the rear housing 2 of the charging base and is electrically connected to the rear end portion of the signal terminal 12.

[0044] 1 to 9, in the illustrated embodiment, the charging base further includes a rear cover 6 attached to a rear opening of the rear housing 2 to cover the rear opening of the rear housing 2. A first through hole through which the charging cable 3 can pass is formed in the rear cover 6, a second through hole through which the signal cable 5 can pass is formed in the rear cover 6, and a third through hole through which the inlet pipe fitting 20b can pass is formed in the rear cover 6.

[0045] 1 to 9, in the illustrated embodiment, a plurality of second protrusions 2b are formed on the rear end of the rear housing 2, and the plurality of second protrusions 2b are distributed at intervals in the circumferential direction of the rear housing 2. A plurality of second snap slots 6b are formed in the rear cover 6 and engage with the plurality of second protrusions 2b, respectively, to secure the rear cover 6 to the rear end of the rear housing 2.

[0046] 1 to 9 , in the illustrated embodiment, the charging base further includes a sealing element 8 attached to the rear opening of the rear housing 2 to seal the rear opening of the rear housing 2. The charging cable 3, the signal cable 5, and the inlet fitting 20b pass through the sealing element 8, and the rear cover 6 is pressed against the sealing element 8 to position the sealing element 8 at the rear opening of the rear housing 2.

[0047] As shown in Figures 1 to 9, in the illustrated embodiment, the charging base further includes an inlet pipe 4, one end 4b of which is connected to an inlet pipe fitting 20b for introducing cooling liquid into the cooling chamber 20.

[0048] As shown in FIGS. 1-9 , in the illustrated embodiment, the cooling chamber 20 also has an exhaust port 201. The charging base further includes a sealing plug 21 and a sealing ring 22. The sealing plug 21 is inserted into the exhaust port 201. The sealing ring 22 is attached to the sealing plug 21. The sealing ring 22 is compressed between the sealing plug 21 and an inner wall of the exhaust port 201 to achieve a seal between the sealing plug 21 and the inner wall of the exhaust port 201.

[0049] It should be understood by those skilled in the art that the above embodiments are illustrative and not restrictive. For example, those skilled in the art can make many modifications to the above embodiments without any contradiction in structure or principle, and can freely combine various features described in different embodiments with each other.

[0050] While several exemplary embodiments have been shown and described, it will be understood by those skilled in the art that various changes or modifications can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the following claims and their equivalents.

[0051] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plurality of said elements or steps, unless expressly stated to the contrary. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic can include additional such elements that do not have that characteristic.

Claims

1. A rear housing for a charging base, comprising: A cooling chamber (20) is formed in the rear housing (2) of the charging base, the cooling chamber (20) having an inlet pipe fitting (20b) for connecting to an inlet pipe (4) and a cooling core pipe fitting (20a) for connecting to a cooling core pipe (32) of a charging cable (3), so that a cooling liquid can flow through the cooling chamber (20) of the rear housing (2) of the charging base and the cooling core pipe (32) of the charging cable (3) to cool the inside of the charging base and the charging cable (3).

2. 2. The rear housing of claim 1, wherein the cooling chamber (20) has at least two cooling core tube fittings (20a) used to connect to the cooling core tubes (32) of at least two charging cables (3) respectively, so that coolant can flow through the cooling core tubes (32) of the at least two charging cables (3) simultaneously to cool the at least two charging cables (3).

3. 2. The rear housing of claim 1, wherein the cooling chamber (20) has two cooling core pipe fittings (20a), the two cooling core pipe fittings (20a) being disposed on either side of the inlet pipe fitting (20b) and spaced a predetermined distance from the inlet pipe fitting (20b).

4. A charging station, A front housing (1), The rear housing (2) according to any one of claims 1 to 3, assembled to the rear end of the front housing (1); a charging terminal (11) provided on the front housing (1) of the charging base, the rear end (11a) of the charging terminal (11) extending into an internal cavity of the rear housing (2) of the charging base; a charging cable (3) inserted into the internal cavity of the rear housing (2) of the charging base and electrically connected to the rear end (11a) of the charging terminal (11); Equipped with The charging cable (3) includes a conductor (31) and a cooling core tube (32), a front end (31a) of the conductor (31) is electrically connected to the rear end (11a) of the charging terminal (11), and the cooling core tube (32) is connected to the cooling core tube joint (20a) of the cooling chamber (20) of the rear housing (2), so that a cooling liquid can flow through the cooling chamber (20) of the rear housing (2) and the cooling core tube (32) of the charging cable (3).

5. 5. The charging stand according to claim 4, wherein the conductor (31) of the charging cable (3) is tubular, the cooling core tube (32) is provided in the conductor (31), and the charging cable (3) also includes an outer insulating layer (33) wrapped around the outside of the conductor (31).

6. 5. The charging stand according to claim 4, wherein the front end (31a) of the conductor (31) of the charging cable (3) and the rear end (11a) of the charging terminal (11) are flat and welded to each other.

7. 5. The charging base according to claim 4, further comprising a thermally conductive part (7) attached to the internal cavity of the rear housing (2) of the charging base and in physical contact with both the rear end (11a) of the charging terminal (11) and an outer wall surface of the cooling chamber (20) to transfer heat from the rear end (11a) of the charging terminal (11) to the cooling chamber (20).

8. 8. The charging stand of claim 7, wherein the front end (31a) of the conductor (31) and the rear end (11a) of the charging terminal (11) are wrapped in the thermally conductive part (7) and are in thermal contact with an inner surface of the thermally conductive part (7), and the outer surface of the thermally conductive part (7) is in thermal contact with the outer wall surface of the cooling chamber (20).

9. The thermally conductive part (7) has a pair of flat inner surfaces and a pair of flat outer surfaces that are opposite to each other in a thickness direction of the rear end portion (11a) of the charging terminal (11), 9. The charging stand of claim 8, wherein the pair of flat inner surfaces of the thermally conductive part (7) are in thermal contact with the front end (31a) of the conductor (31) and the rear end (11a) of the charging terminal (11), respectively, and one of the pair of flat outer surfaces of the thermally conductive part (7) is in thermal contact with the outer wall surface of the cooling chamber (20).

10. The charging stand includes a plurality of charging terminals (11), a plurality of charging cables (3), and a plurality of thermally conductive parts (7); The charging stand according to claim 7, wherein the charging terminals (11) are electrically connected to the charging cables (3) respectively and thermally connected to the outer wall surface of the cooling chamber (20) via corresponding thermally conductive parts (7).

11. A plurality of first snap slots (2a) are formed in a peripheral wall of the front end of the rear housing (2), the plurality of first snap slots (2a) being distributed at intervals in a circumferential direction of the rear housing (2); 5. The charging base according to claim 4, wherein a plurality of first protrusions (1a) are formed on the rear end of the rear housing (2), and the plurality of first protrusions (1a) engage with the plurality of first snap slots (2a) respectively to fix the front end of the rear housing (2) to the rear end of the front housing (1).

12. A signal terminal (12) that is abutted against a signal terminal (12) provided on the front housing (1) of the charging base and a rear end of the signal terminal (12) extends into the rear housing (2) of the charging base; a signal cable (5), one end of which extends into the rear housing (2) of the charging base and is electrically connected to the rear end of the signal terminal (12); The charging base of claim 4 further comprising:

13. The rear housing further includes a rear cover (6) attached to a rear opening of the rear housing (2) to cover the rear opening of the rear housing (2); 13. The charging stand according to claim 12, wherein a first through hole through which the charging cable (3) can pass, a second through hole through which the signal cable (5) can pass, and a third through hole through which the inlet fitting (20b) can pass are formed in the rear cover (6).

14. A plurality of second protrusions (2b) are formed at a rear end of the charging base housing (2), the plurality of second protrusions (2b) being distributed at intervals in a circumferential direction of the charging base housing (2); 14. The charging base according to claim 13, wherein a plurality of second snap slots (6b) are formed in the rear cover (6), and the plurality of second snap slots (6b) engage with the plurality of second protrusions (2b) respectively to secure the rear cover (6) to the rear end of the rear housing (2).

15. a sealing element (8) attached to the rear mouth of the rear housing (2) to seal the rear mouth of the rear housing (2); 14. The charging base according to claim 13, wherein the charging cable (3), the signal cable (5) and the inlet fitting (20b) pass through the sealing element (8), and the rear cover (6) is pressed against the sealing element (8) to position the sealing element (8) at the rear opening of the rear housing (2).

16. 5. The charging base according to claim 4, further comprising an inlet pipe (4), one end of which is connected to the inlet pipe fitting (20b), and the inlet pipe (4) is used to inject the cooling liquid into the cooling chamber (20).

17. The cooling chamber (20) also has an exhaust (201); The charging stand includes: A seal plug (21) inserted into the outlet (201); A seal ring (22) attached to the seal plug (21); Further equipped with 17. The charging base according to claim 4, wherein the sealing ring (22) is compressed between the sealing plug (21) and an inner wall of the outlet (201) to achieve a seal between the sealing plug (21) and the inner wall of the outlet (201).

Images