Charging terminal cooling box and charging seat

Abstract

To achieve rapid cooling of a charging terminal.SOLUTION: A charging terminal cooling box comprises: a box body 10 which has a top opening and an inner cavity 100 that accommodates cooling liquid; and a top cover 11 which is mounted on the box body 10 to cover the top opening. The top cover 11 is used to make thermal contact with a welding end 31 of a charging terminal 3 fixed on the top cover 11 in order to transfer the heat of the charging terminal 3 to the box body 10. The box body 10 has a cooling core pipe joint and an inlet pipe joint 102 that are communicated with the inner cavity 100. The inlet pipe joint 102 is used to connect with an inlet pipe, and the cooling core pipe joint is used to connect with a cooling core pipe of a charging cable 2, so that the cooling liquid can flow through the charging terminal cooling box and the cooling core pipe of the charging cable 2 to cool the charging terminal 3 and the charging cable 2. A charging terminal fixing component fixes the charging terminal to the top cover of the charging terminal cooling box, so that the charging terminal is rapidly cooled through the top cover.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims the benefit of Chinese Patent Application No. CN202311667659.8, filed on December 6, 2023, with the China National Intellectual Property Administration, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a charging terminal cooling box and a charging station including the charging terminal cooling box.

Background Art

[0003] In the prior art, a charging station generally includes a charging station housing, a charging terminal installed in the charging station housing, and a charging cable electrically connected to the charging terminal. To improve the charging speed, it is necessary to increase the charging current. Currently, the requirement for the charging current is as high as 600 A, and it may further increase to 1000 A in the future. When this high current flows through the charging cable and the charging terminal, the temperature inside the charging station housing and the temperature of the charging cable will rise sharply. In the prior art, in order to prevent excessive temperature rise, it is common to increase the diameter of the charging cable, but this increases the size and weight of the charging station product and raises the cost.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present invention is made to overcome or mitigate at least one aspect of the above - mentioned disadvantages.

Means for Solving the Problems

[0005] According to one aspect of the present invention, a charging terminal cooling box is provided. The charging terminal cooling box includes a box body having an internal cavity for accommodating a coolant and an upper opening, and a top cover installed on the upper part of the box body to cover the upper opening of the box body. The top cover is used to form a thermal contact with the welded end of the charging terminal fixed to the top cover in order to transfer the heat of the charging terminal to the coolant in the box body. The box body has a cooling core pipe joint and an inlet pipe joint communicating with the internal cavity, and the inlet pipe joint is used to connect to an inlet pipe, and the cooling core pipe joint is used to connect to the cooling core pipe of the charging cable so that the coolant can flow through the charging terminal cooling box and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.

[0006] According to an exemplary embodiment of the present invention, when the welded end of the charging terminal is fixed to the top cover, the welded end of the charging terminal is arranged within the coverage area of the upper opening of the box body so that the heat of the entire welded end can be transferred to the coolant in the box body through the top cover.

[0007] According to another exemplary embodiment of the present invention, the charging terminal cooling box further includes a charging terminal fixing element installed on the upper part of the box body for fixing the welded end of the charging terminal to the top cover.

[0008] According to another exemplary embodiment of the present invention, the charging terminal fixing element is directly formed on the top cover by embedding injection molding so that the charging terminal fixing element and the top cover become an integral part.

[0009] According to another exemplary embodiment of the present invention, the charging terminal fixing element includes a frame configured to be fixed to the upper part of the box body, and a fixing structure formed on the upper part of the frame. The fixing structure includes a pair of side plates, wherein the bottom parts of the pair of side plates are connected to the upper part of the frame, a pair of upper plates respectively connected to the upper parts of the pair of side plates, and a pair of elastic buckles respectively connected to the upper parts of the pair of side plates. The pair of upper plates are configured to be placed on the upper surface of the welded end portion of the charging terminal inserted between the pair of side plates such that the bottom surface of the welded end portion of the charging terminal is in thermal contact with the top cover. The pair of elastic buckles are used to engage with a pair of snap slots of the welded end portion of the charging terminal so as to lock the welded end portion of the charging terminal to the top cover.

[0010] According to another exemplary embodiment of the present invention, the pair of upper plates of the fixing structure are located between the pair of side plates and are spaced apart from each other by a predetermined distance, and are used to avoid the front end portions of the conductors of the charging cable welded to the welded end portion of the charging terminal.

[0011] According to another exemplary embodiment of the present invention, the pair of elastic buckles of the fixing structure are respectively arranged at one end of the pair of upper plates, and a spacing slot is formed between the elastic buckle and one end of the upper plate so as to separate the elastic buckle from one end of the upper plate.

[0012] According to another exemplary embodiment of the present invention, the elastic buckle has a main body at the same height as the upper plate and a protruding portion protruding from the bottom of the main body, and the protruding portion is used to engage with the snap slot of the welded end portion of the charging terminal.

[0013] According to another exemplary embodiment of the present invention, a guiding slope inclined with respect to the upper plate is formed at the bottom of the elastic buckle to guide the welded end portion of the charging terminal to be inserted between the top cover of the charging terminal cooling box and the upper plate.

[0014] According to another exemplary embodiment of the present invention, in order to increase the coupling strength between the charging terminal fixing element and the top cover of the charging terminal cooling box, a wall recess for joining to the edge of the top cover of the charging terminal cooling box is formed at the bottom of at least one of the pair of side plates.

[0015] According to another exemplary embodiment of the present invention, the charging terminal fixing element includes a plurality of fixing structures arranged side by side to respectively fix the welded ends of the plurality of charging terminals.

[0016] According to another exemplary embodiment of the present invention, the upper surface of the frame of the charging terminal fixing element is joined to the bottom surface of the top cover, mounting holes are formed in the frame, screw holes and connection holes corresponding to the mounting holes of the frame are respectively formed in the upper surface of the box body and the top cover, the charging terminal cooling box further includes a connecting member, and the connecting member sequentially penetrates the connection hole and the mounting hole and is screwed into the screw hole to fix the top cover and the charging terminal fixing element to the upper surface of the box body.

[0017] According to another exemplary embodiment of the present invention, the top cover is an insulating element that can conduct heat but not electricity.

[0018] According to another exemplary embodiment of the present invention, the top cover is a ceramic element that can conduct heat but not electricity.

[0019] According to another exemplary embodiment of the present invention, the box body is an insulating element that can neither conduct heat nor electricity.

[0020] According to another exemplary embodiment of the present invention, the charging terminal cooling box further includes a sealing ring disposed on the upper part of the box body and surrounding the upper opening of the box body. The sealing ring is compressed between the top cover and the box body to seal the upper opening of the box body.

[0021] According to another exemplary embodiment of the present invention, a flange portion is formed on the upper surface of the box body so as to surround the upper opening, the frame of the charging terminal fixing element surrounds the flange portion, and the sealing ring is installed and positioned in an annular gap between the flange portion of the housing and the frame of the charging terminal fixing element.

[0022] According to another aspect of the present invention, a charging station is provided. The charging station includes a housing, a charging terminal having a flat welding end portion disposed in the housing, a charging cable having one end extending into the housing and including a cooling core tube and a conductor, and the above-described charging terminal cooling box provided in the housing. The welding end portion of the charging terminal is fixed to the upper surface of the top cover of the charging terminal cooling box, the front end portion of the conductor of the charging cable is welded to the upper surface of the welding end portion of the charging terminal, and the end portion of the cooling core tube of the charging cable is connected to the cooling core tube joint of the box body of the charging terminal cooling box so that the coolant can flow through the charging terminal cooling box and the cooling core tube of the charging cable.

[0023] According to another exemplary embodiment of the present invention, the charging station further includes a heat shrinkable tube, and the heat shrinkable tube is mounted and heat shrunk on the end portion of the cooling core tube and the cooling core tube joint of the charging terminal cooling box to realize a sealed connection between the cooling core tube and the cooling core tube joint.

[0024] According to an exemplary embodiment of the present invention, the charging station further includes an inlet tube, and the inlet tube is connected to the inlet tube joint of the charging terminal cooling box and is used to supply the coolant to the charging terminal cooling box and the cooling core tube of the charging cable.

[0025] In the above-described exemplary embodiment of the present invention, the charging terminal fixing element fixes the charging terminal to the top cover of the charging terminal cooling box. Therefore, the heat of the charging terminal can be quickly transferred to the coolant in the charging terminal cooling box through the top cover, thereby realizing rapid cooling of the charging terminal.

[0026] In addition, in the exemplary embodiment according to the present invention described above, the charging terminal fixing element can removably fix the charging terminal to the top cover of the charging terminal cooling box. Therefore, the charging terminal can be easily fixed to the charging terminal cooling box and can also be easily removed from the charging terminal cooling box, which is very convenient to use.

[0027] In addition, in the exemplary embodiment according to the present invention described above, since the charging terminal fixing element is directly formed on the top cover of the charging terminal cooling box by insert injection molding, the charging terminal fixing element and the top cover are integrated and can be installed and fixed together with respect to the box body of the charging terminal cooling box. Therefore, the installation steps are simplified.

[0028] In addition, in the exemplary embodiment according to the present invention described above, since the welded end portion of the charging terminal is arranged within the target area of the upper opening of the charging terminal cooling box, the heat of the entire welded end portion is quickly transmitted to the coolant in the cooling box through the top cover. Therefore, the cooling efficiency can be improved.

[0029] The above and other features of the present invention will become more apparent by describing the exemplary embodiments of the present invention in detail with reference to the accompanying drawings.

Brief Description of the Drawings

[0030]

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DETAILED DESCRIPTION OF THE INVENTION

[0031] With reference to the accompanying drawings, exemplary embodiments of the present disclosure will be described in detail below in this specification. 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.

[0032] 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. 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.

[0033] According to the general concept of the present invention, a charging terminal fixing element is provided. The charging terminal fixing element includes a frame configured to be fixed to a charging terminal cooling box, and a fixing structure formed on the upper portion of the frame for fixing the charging terminal to the charging terminal cooling box. The fixing structure includes a pair of side plates, the bottom portions of the pair of side plates being connected to the upper portion of the frame, a pair of upper plates respectively connected to the upper portions of the pair of side plates, and a pair of elastic buckles respectively connected to the upper portions of the pair of side plates. The pair of upper plates are configured to be placed on the upper surface of the welded end portion of the charging terminal inserted between the pair of side plates such that the bottom surface of the welded end portion of the charging terminal is in thermal contact with the top cover of the charging terminal cooling box. The pair of elastic buckles are used to respectively engage with a pair of snap slots of the welded end portion of the charging terminal so as to lock the welded end portion of the charging terminal to the top cover of the charging terminal cooling box.

[0034] According to another general concept of the present invention, a top cover assembly is provided. The top cover assembly includes a top cover installed on the upper portion of the box body of the charging terminal cooling box and configured to cover the upper opening of the box body, and the above-described charging terminal fixing element directly formed on the top cover by embedded injection molding. The charging terminal fixing element is used to fix the welded end portion of the charging terminal to the upper surface of the top cover so as to transfer the heat of the charging terminal to the coolant in the charging terminal cooling box through the top cover.

[0035] According to another general concept of the present invention, a charging terminal cooling box is provided. The charging terminal cooling box includes a box body having an internal cavity for accommodating a coolant and an upper opening, and the above-described top cover assembly installed on the upper part of the box body, the top cover assembly for covering the upper opening of the box body. The box body has a cooling core pipe joint and an inlet pipe joint communicating with the internal cavity, and the inlet pipe joint is used to connect to an inlet pipe, and the cooling core pipe joint is used to connect to the cooling core pipe of the charging cable so that the coolant can flow into the charging terminal cooling box and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.

[0036] According to another general concept of the present invention, a charging station is provided. The charging station includes a housing, a charging terminal disposed in the housing and having a flat welding end, a charging cable having one end extending into the housing and including a cooling core pipe and a conductor, and the above-described charging terminal cooling box provided in the housing. The welding end of the charging terminal is fixed to the upper surface of the top cover of the charging terminal cooling box by a charging terminal fixing element, the front end of the conductor of the charging cable is welded to the upper surface of the welding end of the charging terminal, and the end portion of the cooling core pipe of the charging cable is connected to the cooling core pipe joint of the box body of the charging terminal cooling box so that the coolant can flow through the charging terminal cooling box and the cooling core pipe of the charging cable.

[0037] According to another general concept of the present invention, a charging terminal cooling box is provided. The charging terminal cooling box includes a box body having an internal cavity for accommodating a coolant and an upper opening, and a top cover installed on the upper part of the box body to cover the upper opening of the box body. The top cover is used to form a thermal contact with the welded end of the charging terminal fixed to the top cover in order to transfer the heat of the charging terminal to the coolant in the box body. The box body has a cooling core pipe joint and an inlet pipe joint communicating with the internal cavity. The inlet pipe joint is used to connect to an inlet pipe, and the cooling core pipe joint is used to connect to the cooling core pipe of the charging cable so that the coolant can flow through the charging terminal cooling box and the cooling core pipe of the charging cable to cool the charging terminal and the charging cable.

[0038] According to another general concept of the present invention, a charging station is provided. The charging station includes a housing, a charging terminal disposed in the housing and having a flat welded end, a charging cable having one end extending into the housing and including a cooling core pipe and a conductor, and the above-described charging terminal cooling box provided in the housing. The welded end of the charging terminal is fixed to the upper surface of the top cover of the charging terminal cooling box, the front end of the conductor of the charging cable is welded to the upper surface of the welded end of the charging terminal, and the end portion of the cooling core pipe of the charging cable is connected to the cooling core pipe joint of the box body of the charging terminal cooling box so that the coolant can flow through the charging terminal cooling box and the cooling core pipe of the charging cable.

[0039] FIG. 1 is a perspective view for explaining a charging terminal cooling box 1 according to an exemplary embodiment of the present invention when viewed from below, showing a charging terminal 3 and a charging cable 2; FIG. 2 is a perspective view for explaining the charging terminal cooling box 1 according to the exemplary embodiment of the present invention when viewed from above, showing the charging terminal 3 and the charging cable 2; FIG. 3 is an exploded view for explaining the charging terminal cooling box 1, the charging terminal 3 and the charging cable 2 according to the exemplary embodiment of the present invention; FIG. 4 is a cross-sectional view of the charging terminal cooling box 1, the charging terminal 3 and the charging cable 2 according to the exemplary embodiment of the present invention; FIG. 5 is a longitudinal sectional view of the charging terminal cooling box 1, the charging terminal 3 and the charging cable 2 according to the exemplary embodiment of the present invention; FIG. 6 is a longitudinal sectional view of the charging terminal cooling box 1 according to the exemplary embodiment of the present invention; FIG. 7 is a perspective view for explaining a charging terminal fixing element 12 according to the exemplary embodiment of the present invention; FIG. 8 is a perspective view for explaining the charging terminal cooling box 1 and the charging terminal 3 according to the exemplary embodiment of the present invention.

[0040] As shown in FIGS. 1 to 8, in an exemplary embodiment of the present invention, a charging terminal fixing element 12 is disclosed. The charging terminal fixing element 12 includes a frame 129 and a fixing structure 120. The frame 129 is configured to be fixed to the charging terminal cooling box 1. The fixing structure 120 is formed on the upper part of the frame 129 and is used for fixing the charging terminal 3 to the charging terminal cooling box 1.

[0041] As shown in FIGS. 1 to 8, in the exemplary embodiment, the fixing structure 120 includes a pair of side plates 121, a pair of upper plates 122 and a pair of elastic buckles 123. The bottom of the pair of side plates 121 is connected to the upper part of the frame 129. The pair of upper plates 122 are connected to the upper parts of the pair of side plates 121. The pair of elastic buckles 123 are respectively connected to the upper parts of the pair of side plates 121. The pair of upper plates 122 are suitable for being placed on the upper surface of the welding end portion 31 of the charging terminal 3 inserted between the pair of side plates 121 so that the bottom surface of the welding end portion 31 of the charging terminal 3 is in thermal contact with the top cover 11 of the charging terminal cooling box 1. A pair of elastic buckles 123 are each used to engage with a pair of snap slots 31 on the welded end 31 of the charging terminal 3 in order to lock the welded end 31 of the charging terminal 3 to the top cover 11 of the charging terminal cooling box 1. In the present invention, the pair of elastic buckles 123 can be driven by a tool to a release position separated from the pair of snap slots 31a. Therefore, the welded end 31 of the charging terminal 3 can be easily removed from the charging terminal cooling box 1, which is very convenient to use.

[0042] As shown in FIGS. 1 to 8, in the exemplary embodiment, a pair of upper plates 122 of the fixed structure 120 are located between a pair of side plates 121 and are separated from each other by a predetermined distance so as to avoid the front end 22 of the conductor 22 of the charging cable 2 welded to the welded end 31 of the charging terminal 3. In the exemplary embodiment, both the welded end 31 of the charging terminal 3 and the front end 22a of the conductor 22 of the charging cable 2 are flat, the width of the front end 22a of the conductor 22 of the charging cable 2 is smaller than the width of the welded end 31 of the charging terminal 3, and is also smaller than the interval between the pair of upper plates 122.

[0043] As shown in FIGS. 1 to 8, in the exemplary embodiment, a pair of elastic buckles 123 of the fixed structure 120 are respectively arranged at one end of a pair of upper plates 122, and an interval slot 124 is formed between the elastic buckle 123 and one end of the upper plate 122 so as to separate the elastic buckle 123 from one end of the upper plate 122.

[0044] As shown in FIGS. 1 to 8, in the exemplary embodiment, the elastic buckle 123 has a main body 123b at the same height as the upper plate 122 and a protruding portion 123a protruding from the bottom of the main body 123b. The protruding portion 123a is used to engage with the snap slot 31a of the welded end 31 of the charging terminal 3.

[0045] As shown in FIGS. 1 to 8, in the exemplary embodiment, in order to guide the welded end portion 31 of the charging terminal 3 to be inserted between the top cover 11 of the charging terminal cooling box 1 and the upper plate 122, a guiding slope 123c inclined with respect to the upper plate 122 is formed at the bottom of the elastic buckle 123.

[0046] As shown in FIGS. 1 to 8, in the exemplary embodiment, in order to increase the coupling strength between the charging terminal fixing element 12 and the top cover 11 of the charging terminal cooling box 1, a wall recess 121a for joining to the edge of the top cover 11 of the charging terminal cooling box 1 is formed at the bottom of at least one of the pair of side plates 121.

[0047] As shown in FIGS. 1 to 8, in the exemplary embodiment, the charging terminal fixing element 12 includes a plurality of fixing structures 120 arranged side by side to respectively fix a plurality of charging terminals 3. In the exemplary embodiment, the charging terminal fixing element 12 includes two fixing structures 120 for respectively fixing two charging terminals 3.

[0048] As shown in FIGS. 1 to 8, in the exemplary embodiment, the mounting hole 12a is formed in the frame 129 of the charging terminal fixing element 12 so that the connecting member 14 can pass through it, whereby the frame 129 can be fixed to the upper surface 10b of the box body 10 of the charging terminal cooling box 1 by the connecting member 14 passing through the mounting hole 12a.

[0049] As shown in FIGS. 1 to 8, in another exemplary embodiment of the present invention, a top cover assembly is also disclosed. The top cover assembly includes a top cover 11 and the charging terminal fixing element 12 described above. The top cover 11 is installed on the upper part of the box body 10 of the charging terminal cooling box 1 and is used to cover the upper opening 100a of the box body 10. The charging terminal fixing element 12 is directly formed on the top cover 11 by insert injection molding. The charging terminal fixing element 12 is used to fix the welding end portion 31 of the charging terminal 3 on the upper surface of the top cover 11 so as to transfer the heat of the charging terminal 3 to the coolant in the charging terminal cooling box 1 through the top cover 11.

[0050] As shown in FIGS. 1 to 8, in the exemplary embodiment, the upper surface of the frame 129 of the charging terminal fixing element 12 is joined to the bottom surface of the top cover 11, and a connection hole 11a corresponding to the mounting hole 12a of the frame 129 is formed in the top cover 11. Thus, the top cover assembly can be fixed to the upper surface 10b of the box body 10 of the charging terminal cooling box 1 by a connection member 14 passing through the connection hole 11a and the mounting hole 12a.

[0051] As shown in FIGS. 1 to 8, in the exemplary embodiment, the top cover 11 is an insulating element that can conduct heat but not electricity. For example, in the exemplary embodiment of the present invention, the top cover 11 may be a ceramic element that can conduct heat but not electricity.

[0052] FIG. 9 is a perspective view for explaining the charging terminal cooling box 1 according to the exemplary embodiment of the present invention, FIG. 10 is a perspective view for explaining the charging terminal cooling box 1 according to the exemplary embodiment of the present invention with the top cover assembly open, and FIG. 11 is an exploded view for explaining the charging terminal cooling box 1 according to the exemplary embodiment of the present invention.

[0053] As shown in FIGS. 1 to 11, in another exemplary embodiment of the present invention, a charging terminal cooling box 1 is also disclosed. The charging terminal cooling box 1 includes a box body 10 and the top cover assembly described above. The box body 10 has an internal cavity 100 for accommodating a coolant and an upper opening 100a. The top cover assembly is installed on the upper part of the box body 10 and covers the upper opening 100a of the box body 10. The box body 10 has a cooling core pipe joint 101 and an inlet pipe joint 102 that communicate with the internal cavity 100. The inlet pipe joint 102 is used to connect to an inlet pipe (not shown), and the cooling core pipe joint 101 is used to connect to the cooling core pipe 21 of the charging cable 2 so that the coolant can flow through the charging terminal cooling box 1 and the cooling core pipe 21 of the charging cable 2 to cool the charging terminal 3 and the charging cable 2.

[0054] As shown in FIGS. 1 to 11, in an exemplary embodiment, the charging terminal cooling box 1 further includes a sealing ring 13 disposed on the upper part of the box body 10 and surrounding the upper opening 100a of the box body 10. The sealing ring 13 is compressed between the top cover 11 of the charging terminal cooling box 1 and the box body 10 to seal the upper opening 100a of the box body 10.

[0055] As shown in FIGS. 1 to 11, in an exemplary embodiment, a flange portion 10c is formed on the upper surface of the box body 10 so as to surround the upper opening 100a, and a frame 129 of the charging terminal fixing element 12 surrounds the flange portion 10c. The sealing ring 13 is installed and positioned in an annular gap between the flange portion 10c of the housing 10 and the frame 129 of the charging terminal fixing element 12.

[0056] As shown in FIGS. 1 to 11, in the exemplary embodiment, the threaded hole 10a is formed in the upper surface 10b of the box body 10 of the charging terminal cooling box 1. The charging terminal cooling box 1 also includes a connecting member 14. The connecting member 14 is a screw. The connecting member 14 is screwed into the threaded hole 10a on the upper surface 10b of the box body 10 through the connection hole 11a of the top cover 11 and the mounting hole 12a of the charging terminal fixing element 12 to fix the top cover assembly to the upper surface 10b of the box body 10.

[0057] As shown in FIGS. 1 to 11, in the exemplary embodiment, the top cover 11 of the charging terminal cooling box 1 is an insulating element that can conduct heat but not electricity. The box body 10 of the charging terminal cooling box 1 is an insulating element that is neither thermally conductive nor electrically conductive.

[0058] FIG. 12 is a longitudinal sectional view of a charging stand according to an exemplary embodiment of the present invention.

[0059] As shown in FIGS. 1 to 12, in another exemplary embodiment of the present invention, a charging stand is also disclosed. The charging stand includes a housing 8, a charging terminal 3, a charging cable 2, and a charging terminal cooling box 1. The charging terminal 3 is disposed in the housing 8 and has a flat welding end 31. One end of the charging cable 2 extends into the housing 8. The charging cable 2 includes a cooling core tube 21 and a conductor 22. The charging terminal cooling box 1 is installed in the housing 8. The welding end 31 of the charging terminal 3 is fixed to the upper surface of the top cover 11 of the charging terminal cooling box 1 by the charging terminal fixing element 12, and the front end 22 of the conductor 22 of the charging cable 2 is welded to the upper surface of the welding end 31 of the charging terminal 3. The end portion of the cooling core tube 21 of the charging cable 2 is connected to the cooling core tube joint 101 of the box body 10 of the charging terminal cooling box 1 so that the coolant can flow through the charging terminal cooling box 1 and the cooling core tube 21 of the charging cable 2.

[0060] As shown in FIGS. 1 to 12, in an exemplary embodiment, the conductor 22 of the charging cable 2 is tubular, the cooling core tube 21 is provided within the conductor 21, and the charging cable 2 also includes an outer insulating layer 23 wound around the outside of the conductor 21.

[0061] As shown in FIGS. 1 to 12, in an exemplary embodiment, the welded end portion 31 of the charging terminal 3 is arranged within the target area of the upper opening 100a of the box body 10 of the charging terminal cooling box 1 such that the heat of the entire welded end portion 31 can be transmitted to the coolant within the charging terminal cooling box 1 through the top cover 11.

[0062] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging station further includes a heat shrinkable tube 211. The heat shrinkable tube 211 is attached onto the end portion 21a of the cooling core tube 21 and the cooling core tube joint 101 of the charging terminal cooling box 1 and heat shrunk in order to realize a sealed connection between the cooling core tube 21 and the cooling core tube joint 101.

[0063] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging station further includes an inlet pipe (not shown). The inlet pipe is connected to the inlet pipe joint 102 of the charging terminal cooling box 1 to supply coolant to the charging terminal cooling box 1 and the cooling core tube 21 of the charging cable 2.

[0064] As shown in FIGS. 1 to 12, in another exemplary embodiment of the present invention, a charging terminal cooling box 1 is also disclosed. The charging terminal cooling box 1 includes a box body 10 and a top cover 11. The box body 10 has an internal cavity 100 for accommodating coolant and an upper opening 100a. The top cover 11 is installed on the upper part of the box body 10 and is used to cover the upper opening 100a of the box body 10. The top cover 11 is used to form a heat contact with the welded end portion 31 of the charging terminal 3 fixed to the top cover to transmit the heat of the charging terminal 3 to the coolant within the box body 10. The box body 10 has a cooling core tube joint 101 and an inlet pipe joint 102 that communicate with the internal cavity 100. In order to allow the coolant to flow through the charging terminal cooling box 1 and the cooling core tube 21 of the charging cable 2 to cool the charging terminal 3 and the charging cable 2, the inlet pipe joint 102 is used to connect to the inlet pipe, and the cooling core tube joint 101 is used to connect to the cooling core tube 21 of the charging cable 2.

[0065] As shown in FIGS. 1 to 12, in an exemplary embodiment, when the welded end 31 of the charging terminal 3 is fixed to the top cover 11, the welded end 31 of the charging terminal 3 is disposed within a target area of the upper opening 100a of the box body 10 such that heat of the entire welded end 31 can be transferred to the coolant within the box body 10 through the top cover 11.

[0066] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging terminal cooling box further includes a charging terminal fixing element 12. The charging terminal fixing element 12 is installed on the upper part of the box body 10 to fix the welded end 31 of the charging terminal 3 to the top cover 11.

[0067] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging terminal fixing element 12 is directly formed on the top cover 11 by insert injection molding such that the charging terminal fixing element 12 and the top cover 11 are an integral part.

[0068] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging terminal fixing element 12 includes a frame 129 and a fixing structure 120. The frame 129 is configured to be fixed to the upper part of the box body 10. The fixing structure 120 is formed on the upper part of the frame 129. The fixing structure 120 includes a pair of side plates 121, a pair of upper plates 122, and a pair of elastic buckles 123. The bottom of the pair of side plates 121 is connected to the upper part of the frame 129. The pair of upper plates 122 are connected to the upper part of the pair of side plates 121. A pair of elastic buckles 123 are respectively connected to the upper parts of a pair of side plates 121. A pair of upper plates 122 are configured to be placed on the upper surface of the welded end portion 31 of the charging terminal 3 inserted between the pair of side plates 121 such that the bottom surface of the welded end portion 31 of the charging terminal 3 is in thermal contact with the top cover 11. The pair of elastic buckles 123 are respectively used to engage with a pair of snap slots 31a in the welded end portion 31 of the charging terminal 3 in order to lock the welded end portion 31 of the charging terminal 3 to the top cover 11.

[0069] As shown in FIGS. 1 to 12, in the exemplary embodiment, the pair of upper plates 122 of the fixing structure 120 are located between the pair of side plates 121 and are separated from each other by a predetermined distance so as to avoid the front end portion 22 of the conductor 22 of the charging cable 2 welded to the welded end portion 31 of the charging terminal 3.

[0070] As shown in FIGS. 1 to 12, in the exemplary embodiment, the pair of elastic buckles 123 of the fixing structure 120 are respectively arranged at one end of the pair of upper plates 122, and a spacing slot 124 is formed between the elastic buckle 123 and one end of the upper plate so as to separate the elastic buckle 123 from one end of the upper plate.

[0071] As shown in FIGS. 1 to 12, in the exemplary embodiment, the elastic buckle 123 has a main body 123b at the same height as the upper plate 122 and a protruding portion 123a protruding from the bottom of the main body 123b. The protruding portion 123a is used to engage with the snap slot 31a of the welded end portion 31 of the charging terminal 3.

[0072] As shown in FIGS. 1 to 12, in the exemplary embodiment, a guiding slope 123c inclined with respect to the upper plate 122 is formed at the bottom of the elastic buckle 123 in order to guide the welded end portion 31 of the charging terminal 3 to be inserted between the top cover 11 of the charging terminal cooling box 1 and the upper plate 122.

[0073] As shown in FIGS. 1 to 12, in an exemplary embodiment, in order to increase the coupling strength between the charging terminal fixing element 12 and the top cover 11 of the charging terminal cooling box 1, a wall recess 121a for joining to the edge of the top cover 11 of the charging terminal cooling box 1 is formed at the bottom of at least one of the pair of side plates 121.

[0074] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging terminal fixing element 12 includes a plurality of fixing structures 120 arranged side by side to respectively fix the welded ends 31 of the plurality of charging terminals 3.

[0075] As shown in FIGS. 1 to 12, in an exemplary embodiment, the upper surface of the frame 129 of the charging terminal fixing element 12 is joined to the bottom surface of the top cover 11, and mounting holes 12a are formed in the frame 129. Threaded holes 10a and connection holes 11a corresponding to the mounting holes 12a of the frame 129 are formed in the upper surface 10b of the box body 10 and the top cover 11, respectively. The charging terminal cooling box 1 also includes a connecting member 14. The connecting member 14 is screwed into the threaded hole 10a through the connection hole 11a and the mounting hole 12a in sequence to fix the top cover 11 and the charging terminal fixing element 12 to the upper surface 10b of the box body 10.

[0076] As shown in FIGS. 1 to 12, in an exemplary embodiment, the top cover 11 is an insulating element that can conduct heat but not electricity. For example, the top cover 11 may be a ceramic element that can conduct heat but not electricity.

[0077] As shown in FIGS. 1 to 12, in an exemplary embodiment, the box body 10 is an insulating element that is neither thermally conductive nor electrically conductive.

[0078] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging terminal cooling box 1 further includes a seal ring 13 disposed on the upper portion of the box body 10 and surrounding the upper opening 100a of the box body 10. The seal ring 13 is compressed between the top cover 11 and the box body 10 so as to seal the upper opening 100a of the box body 10.

[0079] As shown in FIGS. 1 to 12, in an exemplary embodiment, the flange portion 10c is formed on the upper surface of the box body 10 so as to surround the upper opening 100a, and the frame 129 of the charging terminal fixing element 12 surrounds the flange portion 10c. The seal ring 13 is installed and positioned in an annular gap between the flange portion 10c of the housing 10 and the frame 129 of the charging terminal fixing element 12.

[0080] As shown in FIGS. 1 to 12, in another exemplary embodiment of the present invention, a charging station is also disclosed. The charging station includes a housing 8, a charging terminal 3, a charging cable 2, and a charging terminal cooling box 1. The charging terminal 3 is disposed in the housing 8 and has a flat welding end portion 31. One end portion of the charging cable 2 extends into the housing 8. The charging cable 2 includes a cooling core tube 21 and a conductor 22. The charging terminal cooling box 1 is installed in the housing 8. The welding end portion 31 of the charging terminal 3 is fixed to the upper surface of the top cover 11 of the charging terminal cooling box 1, and the front end portion 22 of the conductor 22 of the charging cable 2 is welded to the upper surface of the welding end portion 31 of the charging terminal 3. The end portion of the cooling core tube 21 of the charging cable 2 is connected to the cooling core tube joint 101 of the box body 10 of the charging terminal cooling box 1 so that the coolant can flow through the charging terminal cooling box 1 and the cooling core tube 21 of the charging cable 2.

[0081] As shown in FIGS. 1 to 12, in an exemplary embodiment, the charging station includes a heat shrinkable tube 211. The heat shrinkable tube 211 is attached and heat shrunk on the end portion 21a of the cooling core tube 21 and the cooling core tube joint 101 of the charging terminal cooling box 1 to realize a sealed connection between the cooling core tube 21 and the cooling core tube joint 101.

[0082] As shown in FIGS. 1 to 12, in the exemplary embodiment, the charging stand includes an inlet pipe (not shown). The inlet pipe is connected to the inlet pipe joint 102 of the charging terminal cooling box 1 to supply the coolant to the charging terminal cooling box 1 and the cooling core pipe 21 of the charging cable 2.

[0083] It should be understood by those skilled in the art that the above embodiments are exemplary and not limiting. For example, those skilled in the art can make many modifications to the above embodiments without conflicting in structure or principle, and can freely combine various features described in different embodiments with each other.

[0084] Although some exemplary embodiments have been illustrated 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 the present disclosure is defined by the claims and their equivalents.

[0085] As used herein, an element described in the singular and preceded by the word "a" or "an" should be understood to include the plural of said element or step unless explicitly stated to the contrary. Further, reference to "an embodiment" of the present invention is not intended to be construed as excluding the existence of additional embodiments that also incorporate the recited features. Further, unless explicitly stated to the contrary, an embodiment "comprising" or "having" one element or a plurality of elements having a particular characteristic may include additional such elements not having that characteristic.

Claims

1. A charging terminal cooling box, - a box body (10) having an internal cavity (100) for containing a cooling liquid and an upper opening (100a); a top cover (11) installed on the top of the box body (10) to cover the top opening (10a) of the box body (10); Equipped with the top cover (11) is used to form thermal contact with a welded end (31) of the charging terminal (3) fixed to the top cover (11) to transfer heat of the charging terminal (3) to the cooling liquid in the box body (10); the box body (10) has a cooling core pipe joint (101) and an inlet pipe joint (102) communicating with the internal cavity (100), the inlet pipe joint (102) is used to connect with an inlet pipe, and the cooling core pipe joint (101) is used to connect with the cooling core pipe (21) of the charging cable (2) so that the cooling liquid can flow into the cooling core pipe (21) of the charging terminal cooling box (1) and the charging cable (2) to cool the charging terminal (3) and the charging cable (2); Charging terminal cooling box.

2. when the welded end (31) of the charging terminal (3) is fixed to the top cover (11), the welded end (31) of the charging terminal (3) is disposed within a target area of ​​the upper opening (100a) of the box body (10) such that heat of the entire welded end (31) can be transferred to the cooling liquid in the box body (10) through the top cover (11); The charging terminal cooling box according to claim 1 .

3. a charging terminal fixing element (12) installed on the upper portion of the box body (10), for fixing the welded end (31) of the charging terminal (3) to the top cover (11); The charging terminal cooling box of claim 1 further comprising:

4. the charging terminal fixing element (12) is formed directly on the top cover (11) by embedded injection molding, so that the charging terminal fixing element (12) and the top cover (11) are an integral part; The charging terminal cooling box according to claim 3.

5. The charging terminal fixing element (12) is - a frame (129) configured to be fixed to the upper part of the box body (10); - a fixed structure (120) formed on the upper part of the frame (129); Equipped with The fixed structure (120) comprises: a pair of side plates (121), the bottom of which is connected to the top of the frame (129); - a pair of upper plates (122) respectively connected to the upper portions of the pair of side plates (121); a pair of elastic buckles (123) respectively connected to the upper portions of the pair of side plates (121); Equipped with the pair of upper plates (122) are configured to be placed on the upper surface of the welding end (31) of the charging terminal (3) inserted between the pair of side plates (121) so that the bottom surface of the welding end (31) of the charging terminal (3) is in thermal contact with the top cover (11); the pair of elastic buckles (123) are used to respectively engage with a pair of snap slots (31a) of the welding end (31) of the charging terminal (3) so as to lock the welding end (31) of the charging terminal (3) to the top cover (11); The charging terminal cooling box according to claim 3.

6. the pair of upper plates (122) of the fixing structure (120) are located between the pair of side plates (121), spaced apart from each other by a predetermined distance, and used to avoid a front end (22) of a conductor (22) of the charging cable (2) that is welded to the welding end (31) of the charging terminal (3); The charging terminal cooling box according to claim 5.

7. A pair of elastic buckles (123) of the fixing structure (120) are respectively disposed at one end of the pair of upper plates (122), and a spacing slot (124) is formed between the elastic buckles (123) and the one end of the upper plate so as to separate the elastic buckles (123) and the one end of the upper plate. The charging terminal cooling box according to claim 5.

8. The elastic buckle (123) has a body (123b) at the same height as the upper plate (122) and a protrusion (123a) protruding from the bottom of the body (123b); The protrusion (123a) is used to engage with the snap slot (31a) of the welding end (31) of the charging terminal (3); The charging terminal cooling box according to claim 7.

9. A guide slope (123c) inclined toward the upper plate (122) is formed at the bottom of the elastic buckle (123) to guide the welding end (31) of the charging terminal (3) to be inserted between the top cover (11) of the charging terminal cooling box (1) and the upper plate (122). The charging terminal fixing element according to claim 8.

10. In order to increase the coupling strength between the charging terminal fixing element (12) and the top cover (11) of the charging terminal cooling box (1), a wall recess (121a) for joining with an edge of the top cover (11) of the charging terminal cooling box (1) is formed on the bottom of at least one of the pair of side plates (121). The charging terminal cooling box according to claim 5.

11. The charging terminal fixing element (12) includes a plurality of fixing structures (120) arranged side by side for fixing the welding ends (31) of a plurality of charging terminals (3), respectively. The charging terminal cooling box according to claim 5.

12. an upper surface of the frame (129) of the charging terminal fixing element (12) is joined to a bottom surface of the top cover (11), a mounting hole (12a) is formed in the frame (129), and a screw hole (10a) and a connection hole (11a) corresponding to the mounting hole (12a) of the frame (129) are formed in the upper surface (10b) of the box body (10) and the top cover (11), respectively; The charging terminal cooling box (1) further includes a connecting member (14), The connection member (14) is threaded into the screw hole (10a) through the connection hole (11a) and the mounting hole (12a) in order to fix the top cover (11) and the charging terminal fixing element (12) to the upper surface (10b) of the box body (10). The charging terminal cooling box according to claim 5.

13. The top cover (11) is an insulating element that can conduct heat but not electricity. The charging terminal cooling box according to claim 1 .

14. The top cover (11) is a ceramic element that can conduct heat but not electricity. The charging terminal cooling box according to claim 1 .

15. The box body (10) is an insulating element that cannot conduct heat or electricity. The charging terminal cooling box according to claim 1 .

16. A seal ring (13) disposed on the upper portion of the box body (10) and surrounding the upper opening (100a) of the box body (10). Further equipped with The seal ring (13) is compressed between the top cover (11) and the box body (10) to seal the upper opening (10a) of the box body (10). The charging terminal cooling box according to claim 1 .

17. a flange portion (10c) is formed on the upper surface of the box body (10) so as to surround the upper opening (100a), and the frame (129) of the charging terminal fixing element (12) surrounds the flange portion (10c); The seal ring (13) is installed and positioned in an annular gap between the flange portion (10c) of the housing (10) and the frame (129) of the charging terminal fixing element (12).

17. The charging terminal cooling box according to claim 16.

18. A charging station, - a housing (8); - a charging terminal (3) arranged in said housing (8) and having a flat welded end (31); - a charging cable (2) having one end extending into said housing (8), the charging cable (2) including a cooling core tube (21) and a conductor (22); - the charging terminal cooling box (1) according to any one of claims 1 to 17, which is arranged in the housing (8); Equipped with the welded end (31) of the charging terminal (3) is fixed to an upper surface of the top cover (11) of the charging terminal cooling box (1), and a front end (22a) of the conductor (22) of the charging cable (2) is welded to the upper surface of the welded end (31) of the charging terminal (3); an end (21a) of the cooling core pipe (21) of the charging cable (2) is connected to the cooling core pipe joint (101) of the box body (10) of the charging terminal cooling box (1) so that the cooling liquid can flow through the charging terminal cooling box (1) and the cooling core pipe (21) of the charging cable (2); Charging stand.

19. Heat shrink tube (211) Further equipped with the heat shrink tube (211) is installed and heat shrunk onto the end portion (21a) of the cooling core tube (21) and the cooling core pipe fitting (101) of the charging terminal cooling box (1) to achieve a sealed connection between the cooling core tube (21) and the cooling core pipe fitting (101); 20. The charging stand of claim 18.

20. inlet pipe Further equipped with the inlet pipe is connected to the inlet pipe fitting (102) of the charging terminal cooling box (1) and is used to supply the cooling liquid to the charging terminal cooling box (1) and the cooling core pipe (21) of the charging cable (2); 20. The charging stand of claim 18.

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