Charging gun internal liquid cooling system and charging gun

Abstract

The utility model provides an internal liquid cooling system of a charging gun and the charging gun, relates to the technical field of conductive element cooling, and is used for solving the technical problems of low cooling efficiency and low safety of a conductive element liquid cooling system in the related art. The internal liquid cooling system of the charging gun comprises a liquid cooling bracket, at least two ceramic liquid cooling units and at least two conductive elements, each ceramic liquid cooling unit is correspondingly connected with one conductive element; the liquid cooling bracket is provided with at least two accommodating spaces, and a group of correspondingly connected ceramic liquid cooling units and conductive elements are arranged in each accommodating space. The conductive element is cooled through the ceramic liquid cooling unit, heat dissipation is carried out on the conductive element through the insulation and heat conduction performance of ceramic, the heat dissipation efficiency is improved, protection of the ceramic liquid cooling unit is achieved through the liquid cooling support, and the technical problems that a liquid cooling system is low in cooling efficiency and low in safety are solved.

Description

Technical Field

[0001] The present application relates to the technical field of conductive element cooling, and in particular to an internal liquid cooling system for a charging gun and a charging gun. Background Art

[0002] The existing charging gun uses a liquid cooling unit made of metal material to cool the live terminals. Since metal does not have insulating properties, additional insulating material needs to be added between the live terminals and the liquid cooling unit. The insulating material includes materials with poor thermal conductivity such as plastic or rubber, which results in poor overall heat dissipation performance of the live terminals and high costs.

[0003] Therefore, it is necessary to improve the existing technology to solve the shortcomings of the existing technology. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides an internal liquid cooling system for a charging gun and a charging gun to solve the problems of low cooling efficiency and high cost of the liquid cooling system for conductive elements in the related art.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] A charging gun internal liquid cooling system, comprising: a liquid cooling bracket, at least two ceramic liquid cooling units and at least two conductive elements, each of the ceramic liquid cooling units correspondingly connected to one of the conductive elements;

[0007] The liquid cooling bracket has at least two accommodating spaces, and a group of correspondingly connected ceramic liquid cooling units and conductive elements are arranged in each of the accommodating spaces.

[0008] In a feasible embodiment, a flow channel is integrally formed inside the ceramic liquid cooling unit, one end of the flow channel is connected to the inlet of the ceramic liquid cooling unit, and the other end of the flow channel is connected to the outlet of the ceramic liquid cooling unit.

[0009] In a feasible embodiment, water pipe connectors are installed at both the inlet and the outlet of the ceramic liquid cooling unit.

[0010] In a feasible embodiment, the water pipe connector is mounted on the ceramic liquid cooling unit by glue.

[0011] In a feasible embodiment, the water pipe connector is mounted on the ceramic liquid cooling unit by welding.

[0012] In a feasible embodiment, the water pipe connector is installed on the ceramic liquid cooling unit by means of a threaded connection.

[0013] In a feasible embodiment, a thermal pad is installed between the ceramic liquid cooling unit and the conductive element.

[0014] In a feasible embodiment, the conductive element includes a copper bar and a conductive terminal, the copper bar is attached to and connected to one of the outer surfaces of the ceramic liquid cooling unit, one end of the conductive terminal is connected to the end of the copper bar, and the other end of the conductive terminal extends out of the accommodating space along the second direction.

[0015] In a feasible embodiment, the copper busbar and the conductive terminal are integrally formed.

[0016] In a feasible embodiment, the copper busbar and the conductive terminal are detachably connected.

[0017] In a feasible embodiment, an end portion of the conductive element is bent to form a connecting plate, and the connecting plate is connected to one end of the conductive terminal.

[0018] In a feasible embodiment, the internal liquid cooling system of the charging gun also includes: a threaded connector, a first threaded hole is provided on the ceramic liquid cooling unit, a second threaded hole is provided on the copper busbar, and the threaded connector is connected to both the first threaded hole and the second threaded hole.

[0019] In an achievable embodiment, each of the accommodating spaces includes a first wall surface, a second wall surface, a third wall surface and a fourth wall surface, the first wall surface, the second wall surface and the third wall surface intersect each other in pairs, the second wall surface, the third wall surface and the fourth wall surface intersect each other in pairs, and the first wall surface and the fourth wall surface are parallel;

[0020] The ceramic liquid cooling unit and the conductive element are both placed on the first wall surface, and the conductive element is close to the second wall surface;

[0021] The third wall surface is provided with a fixing hole, and the other end of the conductive terminal passes through the fixing hole and out of the accommodation space.

[0022] In an achievable embodiment, the liquid cooling bracket further includes a reinforcing rib, wherein the reinforcing rib has a first end and a second end opposite to each other along the third direction, the first end is vertically connected to the second wall surface, and the second end extends into the accommodating space;

[0023] Wherein, the third direction is perpendicular to the second direction.

[0024] In a feasible embodiment, the liquid cooling system also includes: at least one liquid inlet pipe, at least one liquid outlet pipe and at least one connecting pipe, the at least one liquid inlet pipe corresponds to the inlet of one of the ceramic liquid cooling units, one end of the at least one connecting pipe corresponds to the outlet of one of the ceramic liquid cooling units, the other end of the at least one connecting pipe corresponds to the inlet of another of the ceramic liquid cooling units, and the at least one liquid outlet pipe corresponds to the outlet of another of the ceramic liquid cooling units.

[0025] In a feasible embodiment, the liquid inlet pipe, the liquid outlet pipe and the connecting pipe are all flexible pipes.

[0026] In order to achieve the above purpose, the embodiment of the present application also provides the following technical solutions:

[0027] A charging gun comprises the aforementioned charging gun internal liquid cooling system.

[0028] The internal liquid cooling system of the charging gun provided in the embodiment of the present application has the following beneficial effects:

[0029] 1. The ceramic liquid cooling unit is used to replace the original liquid cooling unit with insulating material coated on the outside of the metal material, which reduces the insulating material components and reduces the cost. At the same time, since the ceramic material has good insulation and thermal conductivity, it can be directly in close contact with the conductive components, and the cooling efficiency is higher;

[0030] 2. A liquid cooling bracket is used to protect the ceramic liquid cooling unit, thereby preventing the ceramic liquid cooling unit from breaking after being subjected to impact force, thereby improving the safety of the liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic diagram of the three-dimensional structure of the internal liquid cooling system of the charging gun provided in an embodiment of the present application;

[0033] Figure 2 An exploded diagram of the internal liquid cooling system of the charging gun provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of a charging gun provided in an embodiment of the present application.

[0035] Reference numerals:

[0036] 100: Liquid cooling bracket;

[0037] 101: first horizontal plate; 102: second horizontal plate; 103: first vertical plate; 104: second vertical plate; 105: cover plate; 106: reinforcing rib;

[0038] 201: first ceramic liquid cooling unit; 202: second ceramic liquid cooling unit; 203: third ceramic liquid cooling unit; 204: fourth ceramic liquid cooling unit;

[0039] 2011: first water pipe connector; 2012: second water pipe connector; 2013: first threaded hole; 2031: third water pipe connector; 2032: fourth water pipe connector; 2021: fifth water pipe connector; 2022: sixth water pipe connector; 2041: seventh water pipe connector; 2042: eighth water pipe connector;

[0040] 301: a first conductive element; 303: a third conductive element;

[0041] 3011: second threaded hole;

[0042] 400: Threaded connector. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0044] The present application embodiment provides a charging gun internal liquid cooling system, referring to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the three-dimensional structure of the internal liquid cooling system of the charging gun provided in an embodiment of the present application. Figure 2 An exploded diagram of the internal liquid cooling system of the charging gun provided in the embodiment of the present application. The internal liquid cooling system of the charging gun includes: at least two ceramic liquid cooling units and at least two conductive elements, each ceramic liquid cooling unit is connected to a corresponding conductive element; the ceramic material has good insulation and thermal conductivity, and when the ceramic is in close contact with the conductive element, the coolant inside the ceramic liquid cooling unit is insulated from the conductive element and can reduce the temperature of the conductive element, so as to achieve rapid cooling of the conductive element and improve heat dissipation efficiency.

[0045] The internal liquid cooling system of the charging gun also includes: a liquid cooling bracket 100, the liquid cooling bracket has at least two accommodating spaces, at least two accommodating spaces are distributed up and down along the first direction (Z direction shown in the figure), each accommodating space is provided with a group of correspondingly connected ceramic liquid cooling units and conductive elements, and the accommodating space is used to protect the ceramic liquid cooling unit. The liquid cooling bracket is used to protect the ceramic liquid cooling unit, so as to prevent the liquid cooling unit from being broken after being subjected to impact force, and the safety is high.

[0046] In the embodiment of the present application, the conductive element may include a copper bar and a conductive terminal, the copper bar is attached to and connected to one of the outer surfaces of the ceramic liquid cooling unit, one end of the conductive terminal is connected to the end of the copper bar, and the other end of the conductive terminal extends out of the accommodation space along the second direction (the Y direction shown in the figure), so as to achieve close contact between the ceramic and the conductive element and quickly complete heat dissipation.

[0047] In the above embodiments of the present application, the copper busbar and the conductive terminal are integrally formed. Alternatively, the copper busbar and the conductive terminal are detachably connected.

[0048] In the embodiment of the present application, the end of the conductive element is bent to form a connecting plate, and the connecting plate is connected to one end of the conductive terminal. When the copper busbar is connected to the conductive terminal, the contact area between the ceramic liquid cooling unit and the copper busbar is maximized, further optimizing the heat dissipation efficiency.

[0049] In an embodiment of the present application, the internal liquid cooling system of the charging gun also includes: a threaded connector, a first threaded hole is provided on the ceramic liquid cooling unit, a second threaded hole is provided on the copper busbar, and the threaded connector is connected to both the first threaded hole and the second threaded hole to ensure the connection stability between the ceramic liquid cooling unit and the conductive element.

[0050] In the embodiment of the present application, each accommodating space includes a first wall surface, a second wall surface, a third wall surface and a fourth wall surface, the first wall surface, the second wall surface and the third wall surface intersect each other in pairs, the second wall surface, the third wall surface and the fourth wall surface intersect each other in pairs, and the first wall surface and the fourth wall surface are parallel; the ceramic liquid cooling unit and the conductive element are both placed on the first wall surface, and the conductive element is close to the second wall surface; a fixing hole is provided on the third wall surface, and the other end of the conductive terminal passes through the accommodating space from the fixing hole.

[0051] That is, the first wall is used to support the bottom of the ceramic liquid cooling unit and the conductive element, the fourth wall is used to protect and isolate the top of the ceramic liquid cooling unit and the conductive element, the second wall is used to protect and isolate the conductive element, and the fixing holes set on the third wall are used to fix the conductive terminals.

[0052] In an embodiment of the present application, the liquid cooling bracket also includes a reinforcing rib, which has a first end and a second end relative to each other along a third direction (the X direction shown in the figure, the third direction is perpendicular to both the first direction and the second direction), the first end is perpendicularly connected to the second wall surface, and the second end extends into the accommodating space.

[0053] In the embodiment of the present application, the internal liquid cooling system of the charging gun also includes: at least one liquid inlet pipe, at least one liquid outlet pipe and at least one connecting pipe, at least one liquid inlet pipe corresponds to the inlet of a ceramic liquid cooling unit, one end of at least one connecting pipe corresponds to the outlet of a ceramic liquid cooling unit, the other end of at least one connecting pipe corresponds to the inlet of another ceramic liquid cooling unit, and at least one liquid outlet pipe corresponds to the outlet of another ceramic liquid cooling unit. Two independent ceramic liquid cooling units are connected by a connecting pipe to realize the series connection of the two ceramic liquid cooling units, reduce the number of pipelines, reduce the complexity of assembly, and cool the two conductive elements at the same time, solve the problem of low cooling efficiency, and greatly improve the charging power.

[0054] In the above embodiments of the present application, the liquid inlet pipe, the liquid outlet pipe and the connecting pipe are all flexible pipes, and the ceramic liquid cooling unit connected by the flexible pipes does not have a hard connection, which can reduce the assembly size deviation.

[0055] In one embodiment of the present application, the internal liquid cooling system of the charging gun may include four liquid cooling units, or may include six liquid cooling units, or eight liquid cooling units (liquid cooling units that are multiples of two). The following takes four liquid cooling units as an example to describe in detail the liquid cooling system of the present application.

[0056] The four liquid cooling units: the first ceramic liquid cooling unit 201, the second ceramic liquid cooling unit 202, the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204, correspond to four conductive elements: the first conductive element 301, the second conductive element, the third conductive element 303 and the fourth conductive element.

[0057] The first ceramic liquid cooling unit 201 is connected to the first conductive element 301, and the first ceramic liquid cooling unit 201 includes an inlet and an outlet. The cooling liquid flows in from the inlet of the first ceramic liquid cooling unit 201, and flows out from the outlet of the first ceramic liquid cooling unit 201 after cooling the first conductive element 301; the second ceramic liquid cooling unit 202 is connected to the second conductive element, and the second ceramic liquid cooling unit 202 includes an inlet and an outlet. The cooling liquid flows in from the inlet of the second ceramic liquid cooling unit 202, and flows out from the outlet of the second ceramic liquid cooling unit 202 after cooling the second conductive element; The third ceramic liquid cooling unit 203 is connected to the third conductive element 303. The third ceramic liquid cooling unit 203 includes an inlet and an outlet. The cooling liquid flows into the inlet of the third ceramic liquid cooling unit 203, and flows out from the outlet of the third ceramic liquid cooling unit 203 after cooling the third conductive element 303; the fourth ceramic liquid cooling unit 204 is connected to the fourth conductive element. The fourth ceramic liquid cooling unit 204 includes an inlet and an outlet. The cooling liquid flows into the inlet of the fourth ceramic liquid cooling unit 204, and flows out from the outlet of the fourth ceramic liquid cooling unit 204 after cooling the fourth conductive element.

[0058] The liquid cooling bracket 100 may include: a first transverse plate 101, a second transverse plate 102, a first vertical plate 103 and a second vertical plate 104, the first transverse plate 101 and the second transverse plate 102 are both arranged horizontally, and the first transverse plate 101 and the second transverse plate 102 are arranged along the vertical direction ( Figure 1 and Figure 2 The first vertical plate 103 is vertically connected to the first horizontal plate 101 to isolate a first accommodating space and a second accommodating space on the first horizontal plate 101, the first accommodating space is used to set the first ceramic liquid cooling unit 201 and the first conductive element 301, and the second accommodating space is used to set the second ceramic liquid cooling unit 202 and the second conductive element.

[0059] The second vertical plate 104 is located between the first horizontal plate 101 and the second horizontal plate 102, and the second vertical plate 104 is vertically connected to the first horizontal plate 101 and the second horizontal plate 102 to isolate a third accommodating space and a fourth accommodating space on the second horizontal plate 102, the third accommodating space is used to set the third ceramic liquid cooling unit 203 and the third conductive element 303, and the fourth accommodating space is used to set the fourth ceramic liquid cooling unit 204 and the fourth conductive element.

[0060] It should be noted that the volumes of the first accommodating space and the second accommodating space are the same, and the volumes of the third accommodating space and the fourth accommodating space are the same; that is, the first vertical plate 103 is vertically connected to the middle position of the first horizontal plate 101, dividing the first horizontal plate 101 into two, and the second vertical plate 104 is also vertically connected to the middle position of the second horizontal plate 102, dividing the second horizontal plate 102 into two.

[0061] When the first ceramic liquid cooling unit 201 is installed in the first storage space and the second ceramic liquid cooling unit 202 is installed in the second storage space, the first horizontal plate 101 plays a role in supporting the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202, and the first vertical plate 103 plays a role in protecting and isolating the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202. Similarly, when the third ceramic liquid cooling unit 203 is installed in the third storage space and the fourth ceramic liquid cooling unit 204 is installed in the fourth storage space, the second horizontal plate 102 plays a role in supporting the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204, and the second vertical plate 104 plays a role in protecting and isolating the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204; at the same time, the first horizontal plate 101 also plays a role in protecting and isolating the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204.

[0062] The outer shells of the first ceramic liquid cooling unit 201, the second ceramic liquid cooling unit 202, the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204 are all made of ceramic materials, which have good insulation and thermal conductivity. At the same time, the four ceramic liquid cooling units are installed on the liquid cooling bracket 100, and the first horizontal plate 101, the second horizontal plate 102, the first vertical plate 103 and the second vertical plate 104 of the liquid cooling bracket 100 provide structural protection for the first ceramic liquid cooling unit 201, the second ceramic liquid cooling unit 202, the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204 to prevent the ceramic liquid cooling units from breaking after being subjected to impact force.

[0063] Continue to refer Figure 2 In the embodiment of the present application, the liquid cooling bracket further includes a reinforcing rib 106, and the reinforcing rib 106 is arranged along the first horizontal direction ( Figure 2 The first end 102 is vertically connected to the first vertical plate 103, and the second end 104 extends into the first accommodation space.

[0064] It should be noted that reinforcing ribs 106 are provided in the first accommodation space, the second accommodation space, the third accommodation space and the fourth accommodation space.

[0065] Continue to refer Figure 2 In the embodiment of the present application, the first vertical plate 103 is arranged along the vertical direction ( Figure 2 The first vertical plate 103 has one opposite end and the other end (in the Z direction shown in FIG), one end of the first vertical plate 103 is vertically connected to the first horizontal plate 101, and the other end of the first vertical plate 103 is away from the first horizontal plate 101. The liquid cooling bracket also includes a cover plate 105, which is horizontally arranged and vertically connected to the other end of the first vertical plate 103, and the cover plate 105 is configured to cover the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202.

[0066] That is, the cover plate 105 is disposed above the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202 to protect and isolate the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202 .

[0067] In the above-mentioned embodiment of the present application, the internal liquid cooling system of the charging gun includes: a first liquid inlet pipe, a first liquid outlet pipe and a first connecting pipe, the first liquid inlet pipe is connected to the inlet of the first ceramic liquid cooling unit 201, one end of the first connecting pipe is connected to the outlet of the first ceramic liquid cooling unit 201, the other end of the first connecting pipe is connected to the inlet of the third ceramic liquid cooling unit 203, and the first liquid outlet pipe is connected to the outlet of the third ceramic liquid cooling unit 203; the coolant flows into the first ceramic liquid cooling unit 201 from the first liquid inlet pipe, and flows out of the first ceramic liquid cooling unit 201 after completing the cooling of the first conductive element in the first ceramic liquid cooling unit 201; then flows into the third ceramic liquid cooling unit 203 through the first connecting pipe, and flows out of the third ceramic liquid cooling unit 203 after completing the cooling of the third conductive element 303 in the third ceramic liquid cooling unit 203, and finally enters the first liquid outlet pipe.

[0068] The internal liquid cooling system of the charging gun also includes: a second liquid inlet pipe, a second liquid outlet pipe, and a second connecting pipe, the second liquid inlet pipe is connected to the inlet of the second ceramic liquid cooling unit 202, one end of the second connecting pipe is connected to the outlet of the second ceramic liquid cooling unit 202, the other end of the second connecting pipe is connected to the inlet of the fourth ceramic liquid cooling unit 204, and the second liquid outlet pipe is connected to the outlet of the fourth ceramic liquid cooling unit 204. The coolant flows into the second ceramic liquid cooling unit 202 from the second liquid inlet pipe, flows out of the second ceramic liquid cooling unit 202 after cooling the second conductive element in the second ceramic liquid cooling unit 202, then flows into the fourth ceramic liquid cooling unit 204 through the second connecting pipe, flows out of the fourth ceramic liquid cooling unit 204 after cooling the fourth conductive element in the fourth ceramic liquid cooling unit 204, and finally enters the second liquid outlet pipe.

[0069] The two independent liquid cooling units are connected through the first connecting pipe, the first liquid pipe is connected to the first ceramic liquid cooling unit 201, and the first liquid outlet pipe is connected to the third ceramic liquid cooling unit 203, so as to realize the series connection of the two liquid cooling units; similarly, the two independent liquid cooling units are connected through the second connecting pipe, the second liquid pipe is connected to the second ceramic liquid cooling unit 202, and the second liquid outlet pipe is connected to the fourth ceramic liquid cooling unit 204, so as to realize the series connection of the two liquid cooling units. While effectively reducing the number of pipelines and the complexity of assembly, it solves the problem of low cooling efficiency of the liquid cooling system and greatly improves the charging power.

[0070] In the embodiment of the present application, the first liquid inlet pipe, the second liquid inlet pipe, the first liquid outlet pipe, the second liquid outlet pipe, the first connecting pipe and the second connecting pipe are all flexible pipes. The first ceramic liquid cooling unit 201, the second ceramic liquid cooling unit 202, the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204 connected by the flexible pipes do not have a hard connection, which can reduce the assembly size deviation and eliminate the stress on another liquid cooling unit or terminal after one terminal is subjected to force.

[0071] In the embodiment of the present application, the first ceramic liquid cooling unit 201 and the third ceramic liquid cooling unit 203 are arranged at intervals along the vertical direction (Z direction shown in the figure), the first ceramic liquid cooling unit 201 includes a first side surface, and the third ceramic liquid cooling unit 203 includes a second side surface, the first side surface and the second side surface are parallel and both located on the vertical direction axis (Z direction axis shown in the figure); the inlet of the first ceramic liquid cooling unit 201 and the outlet of the first ceramic liquid cooling unit 201 are both arranged on the first side surface, and the inlet of the third ceramic liquid cooling unit 203 and the outlet of the third ceramic liquid cooling unit 203 are both arranged on the second side surface. In other words, the inlet of the first ceramic liquid cooling unit 201, the outlet of the first ceramic liquid cooling unit 201, the inlet of the third ceramic liquid cooling unit 203, and the outlet of the third ceramic liquid cooling unit 203 are all located on the same side.

[0072] Similarly, the second ceramic liquid cooling unit 202 and the fourth ceramic liquid cooling unit 204 are arranged at intervals along the vertical direction (Z direction shown in the figure), the second ceramic liquid cooling unit 202 includes a third side, the fourth ceramic liquid cooling unit 204 includes a fourth side, the third side and the fourth side are parallel and both are located on the vertical axis (Z direction axis shown in the figure); the inlet of the second ceramic liquid cooling unit 202 and the outlet of the second ceramic liquid cooling unit 202 are both arranged on the third side, and the inlet of the fourth ceramic liquid cooling unit 204 and the outlet of the fourth ceramic liquid cooling unit 204 are both arranged on the fourth side. In other words, the inlet of the second ceramic liquid cooling unit 202, the outlet of the second ceramic liquid cooling unit 202, the inlet of the fourth ceramic liquid cooling unit 204, and the outlet of the fourth ceramic liquid cooling unit 204 are all located on the same side.

[0073] In the embodiment of the present application, the first ceramic liquid cooling unit 201 and the third ceramic liquid cooling unit 203 are spaced apart in the vertical direction (Z direction shown in the figure), the first ceramic liquid cooling unit 201 includes a first side surface and a fifth side surface that intersect, and the third ceramic liquid cooling unit 203 includes a second side surface and a sixth side surface that intersect, the first side surface and the second side surface are parallel and both are located on the vertical axis, the fifth side surface is close to the third ceramic liquid cooling unit 203, the sixth side surface is close to the first ceramic liquid cooling unit 201, and the fifth side surface and the sixth side surface are opposite to each other in the vertical direction. The inlet of the first ceramic liquid cooling unit 201 is set on the first side surface, and the outlet of the first ceramic liquid cooling unit 201 is set on the fifth side surface, that is, the outlet of the first ceramic liquid cooling unit 201 is located at Figure 2 The inlet of the third ceramic liquid cooling unit 203 is arranged on the sixth side, and the outlet of the third ceramic liquid cooling unit 203 is arranged on the second side, that is, the inlet of the third ceramic liquid cooling unit 203 is located at Figure 2 The top of the third ceramic liquid cooling unit 203 is opposite to the outlet of the first ceramic liquid cooling unit 201.

[0074] Similarly, the second ceramic liquid cooling unit 202 and the fourth ceramic liquid cooling unit 204 are arranged at intervals along the vertical direction (Z direction shown in the figure), the second ceramic liquid cooling unit 202 includes a third side and a seventh side intersecting each other, the fourth ceramic liquid cooling unit 204 includes a fourth side and an eighth side intersecting each other, the third side and the fourth side are parallel and both located on the vertical axis, the seventh side is close to the fourth ceramic liquid cooling unit 204, the eighth side is close to the second ceramic liquid cooling unit 202, and the seventh side and the eighth side are opposite to each other along the vertical direction. The inlet of the second ceramic liquid cooling unit 202 is arranged on the third side, and the outlet of the second ceramic liquid cooling unit 202 is arranged on the seventh side, that is, the outlet of the second ceramic liquid cooling unit 202 is located at the bottom of the second ceramic liquid cooling unit 202; the inlet of the fourth ceramic liquid cooling unit 204 is arranged on the eighth side, and the outlet of the fourth ceramic liquid cooling unit 204 is arranged on the fourth side, that is, the inlet of the fourth ceramic liquid cooling unit 204 is located at the top of the fourth ceramic liquid cooling unit 204, opposite to the outlet of the second ceramic liquid cooling unit 202.

[0075] In the embodiment of the present application, a first water pipe connector 2011 is installed at the inlet of the first ceramic liquid cooling unit 201, a second water pipe connector 2012 is installed at the outlet of the first ceramic liquid cooling unit 201, the first liquid inlet pipe is sleeved on the first water pipe connector 2011 and is connected to the interior of the first water pipe connector 2011, one end of the first connecting pipe is sleeved on the second water pipe connector 2012 and is connected to the interior of the second water pipe connector 2012; a third water pipe connector 2031 is installed at the inlet of the third ceramic liquid cooling unit 203, a fourth water pipe connector 2032 is installed at the outlet of the third ceramic liquid cooling unit 203, the other end of the first connecting pipe is sleeved on the third water pipe connector 2031 and is connected to the interior of the third water pipe connector 2031, and the first liquid outlet pipe is sleeved on the fourth water pipe connector 2032 and is connected to the interior of the fourth water pipe connector 2032.

[0076] A first flow channel is integrally formed inside the first ceramic liquid cooling unit 201 , one end of the first flow channel is connected to the inlet of the first ceramic liquid cooling unit 201 , and the other end of the first flow channel is connected to the outlet of the first ceramic liquid cooling unit 201 .

[0077] A third flow channel is integrally formed inside the third ceramic liquid cooling unit 203 , one end of the third flow channel is connected to the inlet of the third ceramic liquid cooling unit 203 , and the other end of the third flow channel is connected to the outlet of the third ceramic liquid cooling unit 203 .

[0078] Similarly, a fifth water pipe connector 2021 is installed at the inlet of the second ceramic liquid cooling unit 202, and a sixth water pipe connector 2022 is installed at the outlet of the second ceramic liquid cooling unit 202. The second liquid inlet pipe is sleeved on the fifth water pipe connector 2021 and is connected to the inside of the fifth water pipe connector 2021. One end of the second connecting pipe is sleeved on the sixth water pipe connector 2022 and is connected to the inside of the sixth water pipe connector 2022. A seventh water pipe connector 2041 is installed at the inlet of the fourth ceramic liquid cooling unit 204, and an eighth water pipe connector 2042 is installed at the outlet of the fourth ceramic liquid cooling unit 204. The other end of the second connecting pipe is sleeved on the seventh water pipe connector 2041 and is connected to the inside of the seventh water pipe connector 2041. The second liquid outlet pipe is sleeved on the eighth water pipe connector 2042 and is connected to the inside of the eighth water pipe connector 2042.

[0079] A second flow channel is integrally formed inside the second ceramic liquid cooling unit 202 , one end of the second flow channel is connected to the inlet of the second ceramic liquid cooling unit 202 , and the other end of the second flow channel is connected to the outlet of the second ceramic liquid cooling unit 202 .

[0080] A fourth flow channel is integrally formed inside the fourth ceramic liquid cooling unit 204 , one end of the fourth flow channel is connected to the inlet of the fourth ceramic liquid cooling unit 204 , and the other end of the fourth flow channel is connected to the outlet of the fourth ceramic liquid cooling unit 204 .

[0081] In the embodiment of the present application, the internal liquid cooling system of the charging gun further includes: a threaded connector 400, a first threaded hole 2013 is provided on the first ceramic liquid cooling unit 201, and the threaded connector 400 is configured to be connected to both the first threaded hole 2013 and the second threaded hole 3011 provided on the first conductive element 301. The first ceramic liquid cooling unit 201 and the first conductive element 301 are stably connected to ensure the normal operation of the cooling system.

[0082] Similarly, the second ceramic liquid cooling unit 202 and the second conductive element are also connected by the above-mentioned threaded connection method, and the fourth ceramic liquid cooling unit 204 and the fourth conductive element are also connected by the above-mentioned threaded connection method.

[0083] In summary, the embodiment of the present application provides an internal liquid cooling system for a charging gun, including: a liquid cooling bracket, at least two ceramic liquid cooling units and at least two conductive elements, each ceramic liquid cooling unit is connected to a corresponding conductive element; the liquid cooling bracket has at least two accommodating spaces, at least two accommodating spaces are distributed up and down along the first direction, and each accommodating space is provided with a group of correspondingly connected ceramic liquid cooling units and conductive elements. Ceramic materials have good insulation and thermal conductivity, and the fluid inside the ceramic liquid cooling unit can be insulated and isolated from the conductive element. At the same time, the ceramic is in close contact with the conductive element to reduce the temperature of the conductive element, realize rapid cooling of the conductive element, and improve heat dissipation efficiency; and the protection of the ceramic liquid cooling unit is realized on the liquid cooling bracket to prevent the liquid cooling unit from breaking after being subjected to impact force, thereby solving the technical problems of low cooling efficiency and low safety of the liquid cooling system.

[0084] In this specification, each embodiment or example is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other.

[0085] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0086] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0087] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0088] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging gun internal liquid cooling system, characterized in that: include: A liquid cooling bracket, at least two ceramic liquid cooling units and at least two conductive elements, each of the ceramic liquid cooling units being connected to a corresponding conductive element; The liquid cooling bracket has at least two accommodating spaces, and a group of correspondingly connected ceramic liquid cooling units and conductive elements are arranged in each of the accommodating spaces.

2. The internal liquid cooling system of the charging gun according to claim 1, characterized in that: A flow channel is integrally formed inside the ceramic liquid cooling unit, one end of the flow channel is connected to the inlet of the ceramic liquid cooling unit, and the other end of the flow channel is connected to the outlet of the ceramic liquid cooling unit.

3. The internal liquid cooling system of the charging gun according to claim 2, characterized in that: The inlet and outlet of the ceramic liquid cooling unit are both equipped with water pipe connectors.

4. The internal liquid cooling system of the charging gun according to claim 3, characterized in that: The water pipe connector is mounted on the ceramic liquid cooling unit by glue.

5. The internal liquid cooling system of the charging gun according to claim 3, characterized in that: The water pipe connector is mounted on the ceramic liquid cooling unit by welding.

6. The internal liquid cooling system of the charging gun according to claim 3, characterized in that: The water pipe connector is installed on the ceramic liquid cooling unit by means of threaded connection.

7. The internal liquid cooling system of the charging gun according to claim 1, characterized in that: A thermal pad is installed between the ceramic liquid cooling unit and the conductive element.

8. The internal liquid cooling system of the charging gun according to claim 1, characterized in that: The conductive element includes a copper bar and a conductive terminal, the copper bar is attached to and connected to one of the outer surfaces of the ceramic liquid cooling unit, one end of the conductive terminal is connected to the end of the copper bar, and the other end of the conductive terminal extends out of the accommodating space along the second direction.

9. The internal liquid cooling system of the charging gun according to claim 8, characterized in that: The copper busbar and the conductive terminal are integrally formed.

10. The internal liquid cooling system of the charging gun according to claim 8, characterized in that: The copper busbar and the conductive terminal are detachably connected.

11. The internal liquid cooling system of the charging gun according to claim 8, characterized in that: The end of the conductive element is bent to form a connecting plate, and the connecting plate is connected to one end of the conductive terminal.

12. The internal liquid cooling system of the charging gun according to claim 8, characterized in that: The internal liquid cooling system of the charging gun also includes: a threaded connector, a first threaded hole is provided on the ceramic liquid cooling unit, a second threaded hole is provided on the copper busbar, and the threaded connector is connected to both the first threaded hole and the second threaded hole.

13. The internal liquid cooling system of the charging gun according to claim 8, characterized in that: Each of the accommodating spaces comprises a first wall surface, a second wall surface, a third wall surface and a fourth wall surface, wherein the first wall surface, the second wall surface and the third wall surface intersect with each other in pairs, the second wall surface, the third wall surface and the fourth wall surface intersect with each other in pairs, and the first wall surface and the fourth wall surface are parallel; The ceramic liquid cooling unit and the conductive element are both placed on the first wall surface, and the conductive element is close to the second wall surface; The third wall surface is provided with a fixing hole, and the other end of the conductive terminal passes through the fixing hole and out of the accommodation space.

14. The internal liquid cooling system of the charging gun according to claim 13, characterized in that: The liquid cooling bracket further includes a reinforcing rib, wherein the reinforcing rib has a first end and a second end opposite to each other along a third direction, wherein the first end is vertically connected to the second wall surface, and the second end extends into the accommodation space; Wherein, the third direction is perpendicular to the second direction.

15. The internal liquid cooling system of the charging gun according to claim 1, characterized in that: The liquid cooling system also includes: at least one liquid inlet pipe, at least one liquid outlet pipe and at least one connecting pipe, wherein the at least one liquid inlet pipe corresponds to the inlet of one of the ceramic liquid cooling units, one end of the at least one connecting pipe corresponds to the outlet of one of the ceramic liquid cooling units, the other end of the at least one connecting pipe corresponds to the inlet of another of the ceramic liquid cooling units, and the at least one liquid outlet pipe corresponds to the outlet of another of the ceramic liquid cooling units.

16. The charging gun internal liquid cooling system according to claim 15, characterized in that: The liquid inlet pipe, the liquid outlet pipe and the connecting pipe are all flexible pipes.

17. A charging gun, characterized in that: Comprising an internal liquid cooling system for the charging gun as described in any one of claims 1-15.

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