Liquid-cooling system inside charging gun and charging gun

Abstract

The present application relates to the technical field of the cooling of electrically conductive elements. Provided are a liquid-cooling system inside a charging gun and a charging gun, which aim to solve the technical problems in the related art of the low cooling efficiency and low safety level of liquid-cooling systems for electrically conductive elements. The liquid-cooling system inside a charging gun comprises a liquid-cooling holder, at least two ceramic liquid-cooling units and at least two electrically conductive elements, wherein each ceramic liquid-cooling unit is correspondingly connected to one electrically conductive element; the liquid-cooling holder has at least two accommodating spaces; and one set of the correspondingly connected ceramic liquid-cooling unit and electrically conductive element is provided in each accommodating space. The electrically conductive elements are cooled by means of the ceramic liquid-cooling units, and the insulation and thermal conduction performances of a ceramic are utilized to dissipate heat from the electrically conductive elements, thereby improving the heat dissipation efficiency; and the ceramic liquid-cooling units are protected by means of the liquid-cooling holder, thereby solving the technical problems of the low cooling efficiency and low safety level of the liquid-cooling system.

Description

Internal liquid cooling system and charging gun Technical Field

[0001] This application relates to the field of conductive element cooling technology, and in particular to an internal liquid cooling system for a charging gun and a charging gun. Background Technology

[0002] Existing charging guns use a liquid cooling unit made of metal to cool the charged terminals. Since metal does not have insulating properties, additional insulating material needs to be added between the charged 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 charged terminals and high cost.

[0003] Therefore, it is indeed necessary to improve existing technologies to address their shortcomings. Summary of the Invention

[0004] In view of the above problems, this 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 liquid cooling systems for conductive components in related technologies.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] A liquid cooling system for a charging gun includes: a liquid cooling bracket, at least two ceramic liquid cooling units, and at least two conductive elements, wherein each of the ceramic liquid cooling units is connected to one of the conductive elements.

[0007] The liquid cooling bracket has at least two accommodating spaces, and each accommodating space is provided with a set of corresponding connected ceramic liquid cooling units and conductive elements.

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

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

[0010] In one feasible embodiment, the water pipe connector is attached to the ceramic liquid cooling unit by adhesive.

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

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

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

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

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

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

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

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

[0019] In one feasible embodiment, each of the accommodating spaces includes a first wall, a second wall, a third wall, and a fourth wall, wherein the first wall, the second wall, and the third wall intersect each other in pairs, the second wall, the third wall, and the fourth wall intersect each other in pairs, and the first wall and the fourth wall are parallel.

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

[0021] A fixing hole is provided on the third wall surface, and the other end of the conductive terminal passes through the fixing hole and extends out of the receiving space.

[0022] In one feasible embodiment, the liquid-cooled support further includes a reinforcing rib having a first end and a second end opposite each other along a third direction, the first end being perpendicularly connected to the second wall surface, and the second end extending into the receiving space.

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

[0024] In one feasible embodiment, the liquid cooling system further includes: at least one inlet pipe, at least one outlet pipe, and at least one connecting pipe, wherein the at least one inlet pipe is connected to the inlet of one of the ceramic liquid cooling units, one end of the at least one connecting pipe is connected to the outlet of one of the ceramic liquid cooling units, the other end of the at least one connecting pipe is connected to the inlet of another ceramic liquid cooling unit, and the at least one outlet pipe is connected to the outlet of another ceramic liquid cooling unit.

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

[0026] To achieve the above objectives, the embodiments of this application also provide the following technical solutions:

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

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

[0029] 1. The original liquid cooling unit, which was covered with insulating material on the outside of metal material, is replaced by a ceramic liquid cooling unit, which reduces the number of insulating material components and lowers the cost; at the same time, because ceramic material has good insulation and thermal conductivity, it can directly and closely contact the conductive components, resulting in higher cooling efficiency.

[0030] 2. A liquid cooling bracket is used to protect the ceramic liquid cooling unit, preventing it from breaking under impact and improving the safety of the liquid cooling system. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 is a three-dimensional structural diagram of the internal liquid cooling system of the charging gun provided in an embodiment of this application;

[0033] Figure 2 is an exploded view of the internal liquid cooling system of the charging gun provided in an embodiment of this application;

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

[0035] Reference numerals: 100: Liquid cooling bracket; 101: First horizontal plate; 102: Second horizontal plate; 103: First vertical plate; 104: Second vertical plate; 105: Cover plate; 106: Reinforcing rib; 201: First ceramic liquid cooling unit; 202: Second ceramic liquid cooling unit; 203: Third ceramic liquid cooling unit; 204: Fourth ceramic liquid cooling unit; 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; 301: First conductive element; 303: Third conductive element; 3011: Second threaded hole; 400: Threaded connector. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] This application provides an internal liquid cooling system for a charging gun. Referring to Figures 1 and 2, Figure 1 is a three-dimensional structural diagram of the internal liquid cooling system provided in this application, and Figure 2 is an exploded view of the internal liquid cooling system provided in this application. The internal liquid cooling system 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. When the ceramic and the conductive element are in close contact, the coolant inside the ceramic liquid cooling unit is insulated from the conductive element while simultaneously reducing the temperature of the conductive element, thereby achieving rapid cooling of the conductive element and improving heat dissipation efficiency.

[0038] The internal liquid cooling system of the charging gun also includes a liquid cooling bracket 100, which has at least two receiving spaces. These spaces are distributed vertically along a first direction (the Z direction shown in the figure). Each receiving space contains a set of corresponding connected ceramic liquid cooling units and conductive components. The receiving spaces protect the ceramic liquid cooling units. The liquid cooling bracket protects the ceramic liquid cooling units, preventing them from shattering under impact, thus ensuring high safety.

[0039] In this embodiment, the conductive element may include a copper busbar and a conductive terminal. The copper busbar 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 busbar, and the other end of the conductive terminal extends along a second direction (the Y direction shown in the figure) to create a receiving space. This achieves close contact between the ceramic and the conductive element, enabling rapid heat dissipation.

[0040] In the above embodiments of this application, the copper busbar and the conductive terminal are integrally formed. Alternatively, the copper busbar and the conductive terminal are detachably connected.

[0041] In this embodiment, the end of the conductive element is bent to form a connecting plate, which is connected to one end of the conductive terminal. While the copper busbar and the conductive terminal are connected, the contact area between the ceramic liquid cooling unit and the copper busbar is maximized, further optimizing heat dissipation efficiency.

[0042] In this embodiment of the application, the internal liquid cooling system of the charging gun further includes: a threaded connector, a first threaded hole on the ceramic liquid cooling unit, a second threaded hole on the copper busbar, and the threaded connector is connected to both the first and second threaded holes to ensure the connection stability between the ceramic liquid cooling unit and the conductive components.

[0043] In this embodiment, each accommodating space includes a first wall, a second wall, a third wall, and a fourth wall. The first, second, and third walls intersect each other in pairs, and the first and fourth walls are parallel. The ceramic liquid cooling unit and the conductive element are both placed on the first wall, with the conductive element close to the second wall. A fixing hole is provided on the third wall, and the other end of the conductive terminal passes through the fixing hole and out of the accommodating space.

[0044] In other words, the first wall surface is used to support the bottom of the ceramic liquid cooling unit and the conductive element, the fourth wall surface is used to protect and isolate the top of the ceramic liquid cooling unit and the conductive element, the second wall surface is used to protect and isolate the conductive element, and the fixing holes on the third wall surface are used to fix the conductive terminals.

[0045] In this embodiment of the application, the liquid cooling bracket further includes a reinforcing rib. The reinforcing rib has a first end and a second end along a third direction (the X direction shown in the figure, which is perpendicular to both the first and second directions). The first end is perpendicularly connected to the second wall surface, and the second end extends into the accommodating space.

[0046] In this embodiment, the internal liquid cooling system of the charging gun further includes: at least one inlet pipe, at least one outlet pipe, and at least one connecting pipe. The at least one inlet pipe is connected to the inlet of one ceramic liquid cooling unit, one end of the at least one connecting pipe is connected to the outlet of one ceramic liquid cooling unit, the other end of the at least one connecting pipe is connected to the inlet of another ceramic liquid cooling unit, and the at least one outlet pipe is connected to the outlet of another ceramic liquid cooling unit. Connecting two independent ceramic liquid cooling units via the connecting pipe achieves series connection of the two units, reducing the number of pipes and assembly complexity. Simultaneously, it cools two conductive components, solving the problem of low cooling efficiency and significantly improving charging power.

[0047] In the above embodiments of this application, the inlet pipe, outlet pipe and connecting pipe are all flexible pipes. The ceramic liquid cooling unit connected by the flexible pipes does not have a rigid connection, which can reduce assembly size deviation.

[0048] In one embodiment of this application, the internal liquid cooling system of the charging gun may include four liquid cooling units, or six liquid cooling units, or eight liquid cooling units (multiples of two liquid cooling units). The following describes the liquid cooling system of this application in detail using four liquid cooling units as an example.

[0049] Four liquid cooling units: first ceramic liquid cooling unit 201, second ceramic liquid cooling unit 202, third ceramic liquid cooling unit 203 and fourth ceramic liquid cooling unit 204, corresponding to four conductive elements: first conductive element 301, second conductive element, third conductive element 303 and fourth conductive element.

[0050] The first ceramic liquid cooling unit 201 is connected to the first conductive element 301. The first ceramic liquid cooling unit 201 includes an inlet and an outlet. Coolant flows into the first ceramic liquid cooling unit 201 from the inlet, cools the first conductive element 301, and then flows out from the outlet of the first ceramic liquid cooling unit 201. The second ceramic liquid cooling unit 202 is connected to the second conductive element. The second ceramic liquid cooling unit 202 includes an inlet and an outlet. Coolant flows into the second ceramic liquid cooling unit 202 from the inlet, cools the second conductive element, and then flows out from the outlet of the second ceramic liquid cooling unit 202. 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. Coolant flows into the third ceramic liquid cooling unit 203 from the inlet, cools the third conductive element 303, and then flows out from the outlet of the third ceramic liquid cooling unit 203. 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. Coolant flows into the fourth ceramic liquid cooling unit 204 from the inlet, cools the fourth conductive element, and then flows out from the outlet of the fourth ceramic liquid cooling unit 204.

[0051] The liquid cooling bracket 100 may include: a first horizontal plate 101, a second horizontal plate 102, a first vertical plate 103, and a second vertical plate 104. The first horizontal plate 101 and the second horizontal plate 102 are both horizontally arranged, and the first horizontal plate 101 and the second horizontal plate 102 are spaced apart by a certain distance along the vertical direction (Z direction shown in Figures 1 and 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 house the first ceramic liquid cooling unit 201 and the first conductive element 301, and the second accommodating space is used to house the second ceramic liquid cooling unit 202 and the second conductive element.

[0052] 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 perpendicularly connected to both the first horizontal plate 101 and the second horizontal plate 102, so as to separate the third and fourth accommodating spaces on the second horizontal plate 102. The third accommodating space is used to house the third ceramic liquid cooling unit 203 and the third conductive element 303, and the fourth accommodating space is used to house the fourth ceramic liquid cooling unit 204 and the fourth conductive element.

[0053] It should be noted that the first and second accommodating spaces have the same volume, and the third and fourth accommodating spaces have the same volume; 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.

[0054] When the first ceramic liquid cooling unit 201 is installed in the first receiving space and the second ceramic liquid cooling unit 202 is installed in the second receiving space, the first horizontal plate 101 serves to support the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202, and the first vertical plate 103 serves to protect and isolate 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 receiving space and the fourth ceramic liquid cooling unit 204 is installed in the fourth receiving space, the second horizontal plate 102 serves to support the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204, and the second vertical plate 104 serves to protect and isolate 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 serves to protect and isolate the third ceramic liquid cooling unit 203 and the fourth ceramic liquid cooling unit 204.

[0055] 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 material, which has good insulation and thermal conductivity. The four ceramic liquid cooling units are mounted on a liquid cooling bracket 100. 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, preventing them from shattering under impact.

[0056] Referring again to Figure 2, in this embodiment of the application, the liquid cooling bracket further includes a reinforcing rib 106. The reinforcing rib 106 has a first end and a second end opposite to each other along a first horizontal direction (the X direction shown in Figure 2). The first end is perpendicularly connected to the first vertical plate 103, and the second end extends into the first accommodating space.

[0057] It should be noted that reinforcing ribs 106 are provided in the first, second, third, and fourth accommodating spaces.

[0058] Referring again to Figure 2, in this embodiment, the first vertical plate 103 has one end and the other end opposite each other along the vertical direction (Z direction shown in Figure 2). 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. The cover plate 105 is configured to cover the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202.

[0059] In other words, the cover plate 105 is positioned above the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202, serving to protect and isolate the first ceramic liquid cooling unit 201 and the second ceramic liquid cooling unit 202.

[0060] In the above embodiments of this application, the internal liquid cooling system of the charging gun includes: a first inlet pipe, a first outlet pipe, and a first connecting pipe. The first 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 outlet pipe is connected to the outlet of the third ceramic liquid cooling unit 203. Coolant flows into the first ceramic liquid cooling unit 201 from the first inlet pipe, cools the first conductive element in the first ceramic liquid cooling unit 201, and then flows out of the first ceramic liquid cooling unit 201. Then, it flows into the third ceramic liquid cooling unit 203 through the first connecting pipe, cools the third conductive element 303 in the third ceramic liquid cooling unit 203, and then flows out of the third ceramic liquid cooling unit 203, and finally enters the first outlet pipe.

[0061] The internal liquid cooling system of the charging gun also includes a second inlet pipe, a second outlet pipe, and a second connecting pipe. The second 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 outlet pipe is connected to the outlet of the fourth ceramic liquid cooling unit 204. Coolant flows into the second ceramic liquid cooling unit 202 from the second inlet pipe, cools the second conductive element in the second ceramic liquid cooling unit 202, and then flows out of the second ceramic liquid cooling unit 202; then it flows into the fourth ceramic liquid cooling unit 204 through the second connecting pipe, cools the fourth conductive element in the fourth ceramic liquid cooling unit 204, and then flows out of the fourth ceramic liquid cooling unit 204, finally entering the second outlet pipe.

[0062] Two independent liquid cooling units are connected in series via a first connecting pipe. A first liquid pipe is connected to the first ceramic liquid cooling unit 201, and a first liquid outlet pipe is connected to the third ceramic liquid cooling unit 203. Similarly, two independent liquid cooling units are connected in series via a second connecting pipe. A second liquid pipe is connected to the second ceramic liquid cooling unit 202, and a second liquid outlet pipe is connected to the fourth ceramic liquid cooling unit 204. This effectively reduces the number of pipes and assembly complexity while solving the problem of low cooling efficiency in liquid cooling systems and significantly improving charging power.

[0063] In this embodiment, 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 rigid connections, which can reduce assembly size deviations and eliminate the stress effect on another liquid cooling unit or terminal after one terminal is subjected to force.

[0064] In this embodiment, the first ceramic liquid cooling unit 201 and the third ceramic liquid cooling unit 203 are spaced apart along a vertical direction (Z direction as 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 and second side surfaces are parallel and both are located on the vertical axis (Z direction axis as shown in the figure). The inlet and outlet of the first ceramic liquid cooling unit 201 are both located on the first side surface, and the inlet and outlet of the third ceramic liquid cooling unit 203 are both located on the second side surface. That is, the inlet and outlet of the first ceramic liquid cooling unit 201 and the inlet and outlet of the third ceramic liquid cooling unit 203 are all located on the same side.

[0065] Similarly, the second ceramic liquid cooling unit 202 and the fourth ceramic liquid cooling unit 204 are spaced apart along the vertical direction (Z direction shown in the figure). The second ceramic liquid cooling unit 202 includes a third side, and the fourth ceramic liquid cooling unit 204 includes a fourth side. The third and fourth sides are parallel and both are located on the vertical axis (Z direction axis shown in the figure). The inlet and outlet of the second ceramic liquid cooling unit 202 are both located on the third side, and the inlet and outlet of the fourth ceramic liquid cooling unit 204 are both located on the fourth side. That is to say, the inlet and outlet of the second ceramic liquid cooling unit 202 and the inlet and outlet of the fourth ceramic liquid cooling unit 204 are all located on the same side.

[0066] In this embodiment, the first ceramic liquid cooling unit 201 and the third ceramic liquid cooling unit 203 are spaced apart along the vertical direction (Z direction shown in the figure). The first ceramic liquid cooling unit 201 includes an intersecting first side and a fifth side, and the third ceramic liquid cooling unit 203 includes an intersecting second side and a sixth side. The first side and the second side are parallel and both are located on the vertical axis. The fifth side is close to the third ceramic liquid cooling unit 203, and the sixth side is close to the first ceramic liquid cooling unit 201. The fifth side and the sixth side are opposite each other along the vertical direction. The inlet of the first ceramic liquid cooling unit 201 is located on the first side, and the outlet of the first ceramic liquid cooling unit 201 is located on the fifth side. That is, the outlet of the first ceramic liquid cooling unit 201 is located at the bottom of the first ceramic liquid cooling unit 201 in Figure 2. The inlet of the third ceramic liquid cooling unit 203 is located on the sixth side, and the outlet of the third ceramic liquid cooling unit 203 is located on the second side. That is, the inlet of the third ceramic liquid cooling unit 203 is located at the top of the third ceramic liquid cooling unit 203 in Figure 2, opposite to the outlet of the first ceramic liquid cooling unit 201.

[0067] 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 intersecting third and seventh side surfaces, and the fourth ceramic liquid cooling unit 204 includes intersecting fourth and eighth side surfaces. The third and fourth side surfaces are parallel and both are located on the vertical axis. The seventh side surface is close to the fourth ceramic liquid cooling unit 204, and the eighth side surface is close to the second ceramic liquid cooling unit 202. The seventh and eighth side surfaces are opposite each other along the vertical direction. The inlet of the second ceramic liquid cooling unit 202 is located on the third side surface, and the outlet of the second ceramic liquid cooling unit 202 is located on the seventh side surface. 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 located on the eighth side surface, and the outlet of the fourth ceramic liquid cooling unit 204 is located on the fourth side surface. 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.

[0068] In this embodiment, a first water pipe connector 2011 is installed at the inlet of the first ceramic liquid cooling unit 201, and a second water pipe connector 2012 is installed at the outlet of the first ceramic liquid cooling unit 201. A first inlet pipe is sleeved on the first water pipe connector 2011 and communicates with the inside of the first water pipe connector 2011. One end of the first connecting pipe is sleeved on the second water pipe connector 2012 and communicates with the inside 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, and 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 communicates with the inside of the third water pipe connector 2031. A first outlet pipe is sleeved on the fourth water pipe connector 2032 and communicates with the inside of the fourth water pipe connector 2032.

[0069] The first ceramic liquid cooling unit 201 has a first flow channel integrally formed inside. 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.

[0070] The third ceramic liquid cooling unit 203 has a third flow channel integrally formed inside. 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.

[0071] 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 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 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 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 connected to the inside of the eighth water pipe connector 2042.

[0072] The second ceramic liquid cooling unit 202 has a second flow channel integrally formed inside. 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.

[0073] The fourth ceramic liquid cooling unit 204 has a fourth flow channel integrally formed inside. 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.

[0074] In this embodiment, 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. The threaded connector 400 is configured to connect to both the first threaded hole 2013 and a second threaded hole 3011 provided on the first conductive element 301. This ensures a stable connection between the first ceramic liquid cooling unit 201 and the first conductive element 301, guaranteeing the normal operation of the cooling system.

[0075] 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.

[0076] In summary, this application provides an internal liquid cooling system for a charging gun, comprising: a liquid cooling bracket, at least two ceramic liquid cooling units, and at least two conductive elements, each ceramic liquid cooling unit being connected to a corresponding conductive element; the liquid cooling bracket has at least two receiving spaces, which are distributed vertically along a first direction, and each receiving space is provided with a set of correspondingly connected ceramic liquid cooling units and conductive elements. Ceramic materials have excellent insulation and thermal conductivity, allowing the fluid inside the ceramic liquid cooling unit to be insulated from the conductive elements. Simultaneously, the ceramic material is in close contact with the conductive elements to reduce their temperature, achieving rapid cooling and improving heat dissipation efficiency. Furthermore, the liquid cooling bracket protects the ceramic liquid cooling units from breakage under impact, thus solving the technical problems of low cooling efficiency and low safety in liquid cooling systems.

[0077] The various embodiments or embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

[0078] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0079] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0080] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0081] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used 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 other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A liquid cooling system inside a charging gun, characterized in that, The application relates to a liquid cooling system for a charging gun, which comprises a liquid cooling support, at least two ceramic liquid cooling units and at least two conductive elements, each of the ceramic liquid cooling units is connected with one of the conductive elements; the liquid cooling support has at least two accommodating spaces, each of the accommodating spaces is provided with a group of the connected ceramic liquid cooling units and the conductive elements. The ceramic liquid cooling unit is integrally formed with a flow channel, 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. The inlet and the outlet of the ceramic liquid cooling unit are provided with water pipe connectors.

2. The liquid cooling system inside the charging gun according to claim 1, characterized in that, The water pipe connector is mounted on the ceramic liquid cooling unit by means of glue.

3. The liquid cooling system inside the charging gun according to claim 2, characterized in that, The water pipe connector is mounted on the ceramic liquid cooling unit by means of welding.

4. The liquid cooling system inside the charging gun according to claim 3, characterized in that, The water pipe connector is mounted on the ceramic liquid cooling unit by means of screw connection.

5. The liquid cooling system inside the charging gun according to claim 3, characterized in that, A heat-conducting pad is arranged between the ceramic liquid cooling unit and the conductive element.

6. The liquid cooling system inside the charging gun according to claim 3, characterized in that, The conductive element comprises a copper bar and a conductive terminal, the copper bar is attached to and connected with one outer surface of the ceramic liquid cooling unit, one end of the conductive terminal is connected with the end of the copper bar, and the other end of the conductive terminal extends out of the accommodating space in a second direction.

7. The liquid cooling system inside the charging gun of claim 1, wherein, The copper bar and the conductive terminal are integrally formed.

8. The liquid cooling system inside the charging gun of claim 1, wherein, The copper bar and the conductive terminal are detachably connected.

9. The liquid cooling system inside 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 with one end of the conductive terminal.

10. The liquid cooling system inside the charging gun according to claim 8, characterized in that, The internal liquid cooling system of the charging gun further comprises a threaded connecting piece, the ceramic liquid cooling unit is provided with a first threaded hole, the copper bar is provided with a second threaded hole, and the threaded connecting piece is connected with the first threaded hole and the second threaded hole.

11. The liquid cooling system inside 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, 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 to each other.

12. The liquid cooling system for the inside of a charging gun according to claim 1, characterized in that, The ceramic liquid cooling unit and the conductive element are arranged on the first wall surface, and the conductive element is close to the second wall surface.

13. The liquid cooling system for the inside of a charging gun according to claim 8, characterized in that, The third wall surface is provided with a fixing hole, and the other end of the conductive terminal is arranged out of the accommodating space through the fixing hole. The liquid cooling support further comprises a reinforcing rib, the reinforcing rib has opposite first and second ends in a third direction, the first end is perpendicularly connected with the second wall surface, and the second end extends into the accommodating space. The third direction is perpendicular to the second direction.

14. The liquid cooling system inside the charging gun according to claim 13, characterized in that, The liquid cooling system further comprises 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 is connected with the inlet of one of the ceramic liquid cooling units, one end of the at least one connecting pipe is connected with the outlet of one of the ceramic liquid cooling units, the other end of the at least one connecting pipe is connected with the inlet of another of the ceramic liquid cooling units, and the at least one liquid outlet pipe is connected with the outlet of another of the ceramic liquid cooling units. The liquid inlet pipe, the liquid outlet pipe and the connecting pipe are flexible pipes.

15. The liquid cooling system for the inside of a charging gun according to claim 1, characterized in that, ​ 16. The liquid cooling system for the inside of a charging gun according to claim 15, characterized in that, ​ 17. A charging gun, characterized by The charging gun internal liquid cooling system comprises the charging gun internal liquid cooling system as claimed in any one of claims 1-15.

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