Liquid-cooled charging station for electric vehicle and water tank for charging station

Abstract

The utility model belongs to electric motor car technical field, concretely relates to a liquid cooling charging seat for electric motor car, water tank for charging seat, the liquid cooling charging seat for electric motor car of the utility model includes: casing, is provided with a pair of guide link piece in it, one end of guide link piece is used for connecting cable, the other end is used for and is connected with connector, water tank is arranged in the casing, and its bottom is pasted with guide link piece, the flow pipe group is connected with water tank, is suitable for the heat dissipation of the cooling medium that is guided to flow through water tank, among them water tank adopts metal material, and its outer surface is provided with aluminium oxide layer or aluminium nitride layer, the liquid cooling charging seat for electric motor car, water tank for charging seat of the utility model replaces existing plastic water tank through adopting metal water tank and setting aluminium oxide layer or aluminium nitride layer on the outer surface, has improved the heat conductivity of water tank greatly and has reduced the manufacturing cost greatly while realizing insulation effect.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle technology, specifically relating to electric vehicle charging bases, and more particularly to a liquid-cooled charging base and a water tank for the charging base. Background Technology

[0002] Currently, there is a demand for megawatt-level charging (1000V / 1000A or even higher) in the market. Traditional charging solutions that rely solely on end-cooling of charging piles are no longer sufficient to meet the needs of such ultra-high current charging.

[0003] In related technologies, the heat generation problem at the charging dock and the connecting cable between the charging dock and the charging pack can be solved by adding a cooling system to the electric vehicle.

[0004] Due to the limited space inside the charging dock, the size of the water tank inside is also limited. Existing water tanks made of high thermal conductivity plastic (plastic can meet insulation requirements) no longer meet the thermal conductivity requirements when megawatt-level charging is needed.

[0005] Therefore, how to solve the above problems is a problem that urgently needs to be solved by those skilled in the art.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0007] This disclosure provides at least one liquid-cooled charging base for electric vehicles and a water tank for the charging base.

[0008] In a first aspect, embodiments of this disclosure provide a liquid-cooled charging base for electric vehicles, comprising: a housing having a pair of connecting plates disposed therein, one end of the connecting plates being used to connect a cable and the other end being used to connect to a connector; a water tank disposed within the housing, with its bottom abutting against the connecting plates; and a guide pipe assembly communicating with the water tank and adapted to guide a cooling medium to flow through the water tank for heat dissipation; wherein the water tank is made of metal and has a ceramic layer disposed on its outer surface; or the water tank is made of ceramic material.

[0009] In one optional embodiment, where the water tank is made of metal, the water tank includes: a tank body and a top cover; both the tank body and the top cover are made of metal and have a ceramic layer on their outer surfaces; or the tank body is made of metal and the top cover is made of plastic, and both the tank body and the top cover have a ceramic layer on their outer surfaces.

[0010] In one alternative embodiment, the metallic material includes: aluminum alloy, zinc alloy, or stainless steel; and / or, the ceramic layer includes: an alumina layer or an aluminum nitride layer; and / or, the thickness of the ceramic layer ranges from 0.08 to 5 mm.

[0011] In one optional embodiment, when both the housing and the top cover are made of metal, the housing and the top cover are welded by potting glue or friction stir welding; when the housing is made of metal and the top cover is made of plastic, the housing and the top cover are connected by potting glue or screws.

[0012] In one optional embodiment, where the water tank is made of ceramic material, the water tank includes: a tank body and a top cover; both the tank body and the top cover are made of ceramic material; the top cover is connected to the tank body by potting glue or glazing.

[0013] In one optional embodiment, the guide plate is made of copper or aluminum; and / or, the surface of the guide plate that is used to fit with the water tank is provided with a strip-shaped groove; and / or, the tank body of the water tank is bolted to the guide plate.

[0014] In one optional embodiment, the number of water tanks is one; wherein the water tank is divided into two chambers, the bottom of the water tank is attached to two guide plates, and the two chambers correspond to the corresponding guide plates; the water tank is provided with one inlet pipe connector and two outlet pipe connectors, the inlet pipe connector connecting the two chambers; or the water tank is provided with two inlet pipe connectors and one outlet pipe connector, the outlet pipe connector connecting the two chambers.

[0015] In one optional embodiment, two water tanks are used; wherein each water tank has a chamber, and the bottom of the water tank is attached to a corresponding connecting piece; the water tank is provided with an inlet pipe connector and an outlet pipe connector.

[0016] In one optional embodiment, the inlet pipe connector and the outlet pipe connector are connected to the water tank by thread or glue; and / or, the inlet pipe connector and the outlet pipe connector are made of metal or plastic materials.

[0017] Secondly, this disclosure also provides a water tank for a liquid-cooled charging dock, comprising: the water tank being bonded to a conductive piece of the liquid-cooled charging dock; wherein the water tank is made of metal and its outer surface is provided with a ceramic layer; or the water tank is made of ceramic material.

[0018] In one optional embodiment, where the water tank is made of metal, the water tank includes: a tank body and a top cover; both the tank body and the top cover are made of metal and have a ceramic layer on their outer surfaces; or the tank body is made of metal and the top cover is made of plastic, and both the tank body and the top cover have a ceramic layer on their outer surfaces.

[0019] In one alternative embodiment, the metallic material includes: aluminum alloy or zinc alloy or stainless steel; and / or, the thickness of the ceramic layer ranges from 0.08 to 5 mm; and / or, the ceramic layer includes: an alumina layer or an aluminum nitride layer.

[0020] The beneficial effects of this utility model are that the liquid-cooled charging base and charging base water tank for electric vehicles replace the existing plastic water tank by using a metal water tank and setting an aluminum oxide layer or aluminum nitride layer on the outer surface, which greatly improves the thermal conductivity of the water tank and greatly reduces the manufacturing cost while achieving the insulation effect.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a liquid-cooled charging dock for electric vehicles provided in an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the internal structure of a liquid-cooled charging base for electric vehicles provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the connection structure of a connecting piece provided in an embodiment of the present disclosure; Figure 4 A schematic diagram of the installation structure of a water tank for a liquid-cooled charging dock provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of a connecting piece provided in an embodiment of the present disclosure; Figure 6 This is a schematic diagram of the internal structure of a water tank when two connecting plates are connected to a water tank, according to an embodiment of this disclosure. Figure 7 This is a schematic diagram of the internal structure of a water tank when a water tank is connected to a connecting piece, according to an embodiment of this disclosure. Figure 8 This is a schematic diagram of the joint structure when the joint and the housing are connected by potting adhesive, according to an embodiment of the present disclosure. Figure 9 This is a schematic diagram of the structure of a connector when the connector and the housing are connected by threads, as provided in an embodiment of this disclosure.

[0025] In the picture: Housing 1, connecting piece 11, cable 12, connector 13; 2. Water tank; 21. Tank body; 22. Top cover; 23. Inlet pipe connector; 231. Sealing ring; 24. Outlet pipe connector; 25. Chamber; Flow guide tube group 3, flow guide tube 31. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.

[0028] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] At least one embodiment provides a liquid-cooled charging dock for electric vehicles, such as Figures 1 to 3 As shown, it includes: a housing 1, which has a pair of connecting plates 11 inside, one end of the connecting plate 11 is used to connect the cable 12, and the other end is used to connect to the connector 13; a water tank 2, which is disposed inside the housing 1 and whose bottom is attached to the connecting plate 11; and a flow guide pipe assembly 3, which is connected to the water tank 2 and is suitable for guiding the cooling medium to flow through the water tank 2 for heat dissipation; wherein the water tank 2 is made of metal material and its outer surface is provided with a ceramic layer.

[0030] Specifically, one connecting piece 11 is connected to the positive electrode, and the other connecting piece 11 is connected to the negative electrode. The water tank 2 is attached to the two connecting pieces 11.

[0031] In this embodiment, the use of a metal water tank 2 can effectively improve thermal conductivity, and the ceramic layer on the outer surface of the water tank 2 can be used for insulation to prevent short circuits between the two conductive pieces 11. At the same time, by using a metal water tank 2 and setting a ceramic layer on the outer surface, the manufacturing cost of the entire water tank 2 can be greatly reduced.

[0032] In some embodiments, such as Figure 3 As shown, the water tank 2 includes: a tank body 21 and a top cover 22.

[0033] Optionally, both the housing 21 and the top cover 22 are made of metal, and a ceramic layer is provided on the outer surface of the housing 21 and the top cover 22; wherein the housing 21 and the top cover 22 are welded by potting glue or friction stir welding.

[0034] Optionally, the housing 21 is made of metal, the top cover 22 is made of plastic, and a ceramic layer is provided on the outer surface of the housing 21 and the top cover 22; wherein the housing 21 and the top cover 22 are connected by potting glue or screws.

[0035] In this embodiment, a ceramic layer can be provided on the outer surface of the tank 21 to prevent short circuits; wherein, the water tank is made of metal material, which can easily meet the requirements of ultra-high dimensional accuracy, and is more stable, reliable and cheaper than the complex process of high-precision ceramics.

[0036] In some embodiments, the metallic material includes aluminum alloy, zinc alloy, or stainless steel.

[0037] Specifically, aluminum alloy has a thermal conductivity of around 200W; zinc alloy has a thermal conductivity of around 120W; and stainless steel has a thermal conductivity of around 30W.

[0038] In some embodiments, the ceramic layer includes an alumina layer or an aluminum nitride layer.

[0039] Preferably, the housing 21 is made of aluminum alloy, and the ceramic layer is made of aluminum nitride.

[0040] In some embodiments, the thickness of the ceramic layer ranges from 0.08 to 5 mm.

[0041] In some embodiments, the connecting piece 11 is made of copper or aluminum.

[0042] In some embodiments, such as Figure 5 As shown, the guide plate 11 has a strip-shaped groove on the surface that is used to fit with the housing 21.

[0043] Specifically, the limiting fixture of the welding equipment is equipped with a base felt for anti-slip purposes; when the guide piece 11 is welded to the cable 12, a strip-shaped groove will be generated on the guide piece 11.

[0044] In this embodiment, the strip-shaped groove on the guide piece 11 is unavoidable. The base felt of the prior art is generally a uniformly distributed convex dot. This base felt causes the guide piece 11 to form concave dots, resulting in a very small contact area between the guide piece 11 and the housing 21. In this embodiment, the guide piece 11 forms a strip-shaped groove, thereby increasing the contact area between the guide piece 11 and the housing 21.

[0045] In some embodiments, the housing 21 and the guide plate 11 are connected by bolts.

[0046] In one application scenario, such as Figure 4 , Figure 6 As shown, the number of water tanks 2 is one; the water tank 2 is divided into two chambers 25; the bottom of the water tank 2 is attached to two guide plates 11, and the two chambers 25 correspond to the corresponding guide plates 11 respectively; the water tank 2 is provided with one inlet pipe connector 23 and two outlet pipe connectors 24, the inlet pipe connector 23 connects the two chambers 25; or the water tank 2 is provided with two inlet pipe connectors 23 and one outlet pipe connector 24, the outlet pipe connector 24 connects the two chambers 25.

[0047] In another application scenario, such as Figure 7 As shown, there are two water tanks 2; one of the water tanks 2 is attached to a guide plate 11; there is only one chamber 25 inside the water tank 2, and the bottom of the water tank 2 is attached to the corresponding guide plate 11; the water tank 2 is provided with an inlet pipe connector 23 and an outlet pipe connector 24.

[0048] In this embodiment, two water tanks 2 are used to accommodate liquid-cooled charging bases at different angles. If the water tanks are set vertically, that is, one connecting piece 11 is located at the top and the other connecting piece 11 is located at the bottom, one water tank 2 cannot evenly dissipate heat from the two connecting pieces 11.

[0049] In some embodiments, each of the guide pipes 31 in the guide pipe assembly 3 is connected to a corresponding connector to form a cooling circuit.

[0050] In some embodiments, such as Figure 8 , Figure 9 As shown, the inlet pipe connector 23 and the outlet pipe connector 24 are connected to the tank body 21 of the water tank 2 by threaded connection or glue injection connection; wherein, Figure 8 This is a schematic diagram of the glue-filled connection structure. Figure 9 This is a schematic diagram of a threaded connection.

[0051] Specifically, when using threaded connections, sealing rings 231 are provided on the inlet pipe connector 23 and the outlet pipe connector 24.

[0052] In some embodiments, the inlet pipe connector 23 and the outlet pipe connector 24 are made of metal or plastic materials; wherein, the metal material can be aluminum alloy, stainless steel, zinc alloy, etc., and the plastic material can be nylon, POM, PPS, etc.

[0053] At least one embodiment also provides a liquid-cooled charging dock for electric vehicles, such as Figures 1 to 3 As shown, it includes: a housing 1, which has a pair of connecting plates 11 inside, one end of the connecting plate 11 is used to connect the cable 12, and the other end is used to connect to the connector 13; a water tank 2, which is disposed inside the housing 1 and its bottom is attached to the connecting plate 11; and a flow guide pipe assembly 3, which is connected to the water tank 2 and is suitable for guiding the cooling medium to flow through the water tank 2 for heat dissipation; wherein the water tank 2 is made of ceramic material.

[0054] In this embodiment, the water tank 2 is made entirely of ceramic material, which not only achieves insulation but also improves thermal conductivity compared to water tanks made of plastic material.

[0055] In some embodiments, the water tank 2 includes a tank body 21 and a top cover 22, both of which are made of ceramic material; wherein the top cover 22 is connected to the tank body 21 by potting glue or glazing.

[0056] In some embodiments, the connecting piece 11 is made of copper or aluminum.

[0057] In some embodiments, such as Figure 5 As shown, the guide plate 11 has a strip-shaped groove on the surface that is used to fit with the housing 21.

[0058] Specifically, the limiting fixture of the welding equipment is equipped with a base felt for anti-slip purposes; when the guide piece 11 is welded to the cable 12, a strip-shaped groove will be generated on the guide piece 11.

[0059] In this embodiment, the strip-shaped groove on the guide piece 11 is unavoidable. The base felt of the prior art is generally a uniformly distributed convex dot. This base felt causes the guide piece 11 to form concave dots, resulting in a very small contact area between the guide piece 11 and the housing 21. In this embodiment, the guide piece 11 forms a strip-shaped groove, thereby increasing the contact area between the guide piece 11 and the housing 21.

[0060] In some embodiments, the housing 21 and the guide plate 11 are connected by bolts.

[0061] In one application scenario, such as Figure 4 , Figure 6As shown, the number of water tanks 2 is one; the water tank 2 is divided into two chambers 25; the bottom of the water tank 2 is attached to two guide plates 11, and the two chambers 25 correspond to the corresponding guide plates 11 respectively; the water tank 2 is provided with one inlet pipe connector 23 and two outlet pipe connectors 24, the inlet pipe connector 23 connects the two chambers 25; or the water tank 2 is provided with two inlet pipe connectors 23 and one outlet pipe connector 24, the outlet pipe connector 24 connects the two chambers 25.

[0062] In another application scenario, such as Figure 7 As shown, there are two water tanks 2; one of the water tanks 2 is attached to a guide plate 11; there is only one chamber 25 inside the water tank 2, and the bottom of the water tank 2 is attached to the corresponding guide plate 11; the water tank 2 is provided with an inlet pipe connector 23 and an outlet pipe connector 24.

[0063] In this embodiment, two water tanks 2 are used to accommodate liquid-cooled charging bases at different angles. If the water tanks are set vertically, that is, one connecting piece 11 is located at the top and the other connecting piece 11 is located at the bottom, one water tank 2 cannot evenly dissipate heat from the two connecting pieces 11.

[0064] In some embodiments, each of the guide pipes 31 in the guide pipe assembly 3 is connected to a corresponding connector to form a cooling circuit.

[0065] In some embodiments, such as Figure 8 , Figure 9 As shown, the inlet pipe connector 23 and the outlet pipe connector 24 are connected to the tank body 21 of the water tank 2 by threaded connection or glue injection connection; wherein, Figure 8 This is a schematic diagram of the glue-filled connection structure. Figure 9 This is a schematic diagram of a threaded connection.

[0066] Specifically, when using threaded connections, sealing rings 231 are provided on the inlet pipe connector 23 and the outlet pipe connector 24.

[0067] In some embodiments, the inlet pipe connector 23 and the outlet pipe connector 24 are made of metal or plastic materials; wherein, the metal material can be aluminum alloy, stainless steel, zinc alloy, etc., and the plastic material can be nylon, POM, PPS, etc.

[0068] At least one embodiment also provides a water tank for a liquid-cooled charging dock, comprising: a water tank 2 and a conductive piece 11 of the liquid-cooled charging dock being attached; wherein the water tank 2 is made of metal and its outer surface is provided with an aluminum oxide layer or an aluminum nitride layer.

[0069] In some embodiments, such as Figure 3 As shown, the water tank 2 includes: a tank body 21 and a top cover 22.

[0070] Optionally, both the housing 21 and the top cover 22 are made of metal, and a ceramic layer is provided on the outer surface of the housing 21 and the top cover 22; wherein the housing 21 and the top cover 22 are welded by potting glue or friction stir welding.

[0071] Optionally, the housing 21 is made of metal, the top cover 22 is made of plastic, and a ceramic layer is provided on the outer surface of the housing 21 and the top cover 22; wherein the housing 21 and the top cover 22 are connected by potting glue or screws.

[0072] In this embodiment, a ceramic layer can be provided on the outer surface of the tank 21 to prevent short circuits; wherein, the water tank is made of metal material, which can easily meet the requirements of ultra-high dimensional accuracy, and is more stable, reliable and cheaper than the complex process of high-precision ceramics.

[0073] In some embodiments, the metallic material includes aluminum alloy, zinc alloy, or stainless steel.

[0074] Specifically, aluminum alloy has a thermal conductivity of around 200W; zinc alloy has a thermal conductivity of around 120W; and stainless steel has a thermal conductivity of around 30W.

[0075] In some embodiments, the ceramic layer includes an alumina layer or an aluminum nitride layer.

[0076] Preferably, the housing 21 is made of aluminum alloy, and the ceramic layer is made of aluminum nitride.

[0077] In some embodiments, the thickness of the ceramic layer ranges from 0.08 to 5 mm.

[0078] At least one embodiment also provides a water tank for a liquid-cooled charging dock, comprising: a water tank 2 and a conductive piece 11 of the liquid-cooled charging dock being attached; the water tank 2 comprises: a body 21 and a top cover 22, both of which are made of ceramic material.

[0079] For the specific structure and implementation process of water tank 2, please refer to the relevant discussion in the above embodiments, which will not be repeated here.

[0080] In summary, the liquid-cooled charging base and charging base water tank of this electric vehicle replace the existing plastic water tank by using a metal water tank 2 with an aluminum oxide layer or aluminum nitride layer on the outer surface. This greatly improves the thermal conductivity of the water tank 2 and significantly reduces the manufacturing cost while achieving insulation.

[0081] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.

[0082] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0083] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0084] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0085] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0086] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0087] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0088] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0089] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0090] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A liquid-cooled charging base for electric vehicles, characterized in that, include: The housing (1) has a pair of connecting pieces (11) inside, one end of which is used to connect to the cable (12) and the other end is used to connect to the connector (13); The water tank (2) is installed inside the shell (1), and its bottom is attached to the guide plate (11); The guide pipe assembly (3) is connected to the water tank (2) and is suitable for guiding the cooling medium to flow through the water tank (2) for heat dissipation; wherein The water tank (2) is made of metal and has a ceramic layer on its outer surface; or The water tank (2) is made of ceramic material.

2. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, In the case where the water tank (2) is made of metal, the water tank (2) includes: a tank body (21) and a top cover (22); Both the housing (21) and the top cover (22) are made of metal, and the outer surface is provided with a ceramic layer; or The box body (21) is made of metal, the top cover (22) is made of plastic, and the outer surfaces of the box body (21) and the top cover (22) are provided with a ceramic layer.

3. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, The metallic material includes: aluminum alloy, zinc alloy, or stainless steel; And / or, the ceramic layer includes: an alumina layer or an aluminum nitride layer; And / or, the thickness of the ceramic layer ranges from 0.08 to 5 mm.

4. The liquid-cooled charging dock for electric vehicles as described in claim 2, characterized in that, In cases where both the housing (21) and the top cover (22) are made of metal, the housing (21) and the top cover (22) are welded by potting glue or friction stir welding; In the case where the housing (21) is made of metal and the top cover (22) is made of plastic, the housing (21) and the top cover (22) are connected by potting glue or screws.

5. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, In the case where the water tank (2) is made of ceramic material, the water tank (2) includes: a tank body (21) and a top cover (22); Both the housing (21) and the top cover (22) are made of ceramic material; The top cover (22) and the box body (21) are connected by potting glue or glazing.

6. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, The connecting piece (11) is made of copper or aluminum. And / or, the guide piece (11) has a strip-shaped groove on the surface that is used to fit with the water tank (2); And / or, the tank body (21) of the water tank (2) is bolted to the guide plate (11).

7. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, The number of water tanks (2) is one; wherein The water tank (2) is divided into two chambers (25). The bottom of the water tank (2) is attached to two connecting pieces (11), and the two chambers (25) correspond to the corresponding connecting pieces (11). The water tank (2) is provided with one inlet pipe connector (23) and two outlet pipe connectors (24), the inlet pipe connector (23) connecting the two chambers (25); or The water tank (2) is provided with two inlet pipe joints (23) and one outlet pipe joint (24), and the outlet pipe joint (24) connects the two chambers (25).

8. The liquid-cooled charging dock for electric vehicles as described in claim 1, characterized in that, The number of water tanks (2) is two; among which The water tank (2) contains a chamber (25), and the bottom of the water tank (2) is attached to the corresponding connecting piece (11); The water tank (2) is provided with an inlet pipe connector (23) and an outlet pipe connector (24).

9. The liquid-cooled charging dock for electric vehicles as described in claim 7 or 8, characterized in that, The inlet pipe connector (23) and the outlet pipe connector (24) are connected to the water tank (2) by thread or glue. And / or, the inlet pipe connector (23) and the outlet pipe connector (24) are made of metal or plastic.

10. A water tank for a liquid-cooled charging dock, characterized in that, include: The water tank (2) is attached to the conductive piece (11) of the liquid-cooled charging base; wherein The water tank (2) is made of metal and has a ceramic layer on its outer surface; or The water tank (2) is made of ceramic material.

11. The water tank for the liquid-cooled charging dock as described in claim 10, characterized in that, In the case where the water tank (2) is made of metal, the water tank (2) includes: a tank body (21) and a top cover (22); Both the housing (21) and the top cover (22) are made of metal, and the outer surface is provided with a ceramic layer; or The box body (21) is made of metal, the top cover (22) is made of plastic, and the outer surfaces of the box body (21) and the top cover (22) are provided with a ceramic layer.

12. The water tank for the liquid-cooled charging dock as described in claim 11, characterized in that, The metallic material includes: aluminum alloy, zinc alloy, or stainless steel; And / or, the thickness of the ceramic layer ranges from 0.08 to 5 mm; And / or, the ceramic layer includes: an alumina layer or an aluminum nitride layer.

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