Cooling device, charging gun and charging equipment

Abstract

The application discloses a cooling device, a charging gun and a charging device. The cooling device comprises a cooling member and a charging terminal. The cooling member has a first internal cavity and a cooling port communicating with the first internal cavity, and the cooling port is used for allowing a cooling medium to enter the first internal cavity. The charging terminal has a second internal cavity, a first port and a second port communicating with the second internal cavity, the first port communicates with the first internal cavity, and the second port communicates with the outside of the first internal cavity. Thus, after the cooling medium enters the first internal cavity from the cooling port, the cooling medium directly contacts the outer surface of the charging terminal in the first internal cavity, then enters the second internal cavity through the first port and leaves the second internal cavity through the second port. In this process, the cooling medium contacts the outer surface and the inner surface of the charging terminal, and can quickly cool the charging terminal. Therefore, the cooling efficiency of the charging terminal is high.

Description

Technical Field

[0001] This application relates to the field of charging equipment, and more specifically to cooling devices, charging guns, and charging equipment. Background Technology

[0002] Existing charging guns include charging terminals. These terminals are inserted into a vehicle's charging dock to electrically connect to the dock and charge the vehicle. The charging gun also has a cooling component. This cooling component surrounds a portion of the charging terminal, forming a cooling space with the terminal's outer surface. A cooling medium can then be introduced into this space, exchanging heat with the terminal's outer surface to cool it. However, this method is inefficient at cooling the charging terminal.

[0003] Therefore, this application provides a cooling device, a charging gun, and a charging equipment to at least partially solve the above-mentioned problems. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed embodiments section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solutions, nor is it intended to determine the scope of protection of the claimed technical solutions.

[0005] To at least partially solve the above-mentioned technical problems, this application provides a cooling device, which includes:

[0006] A cooling component having a first internal cavity and a cooling port communicating with the first internal cavity for supplying a cooling medium into the first internal cavity;

[0007] The charging terminal has a second internal cavity, and a first port and a second port communicating with the second internal cavity. The first port is connected to the first internal cavity, and the second port is connected to the outside of the first internal cavity.

[0008] According to the cooling device of this application, after the cooling medium enters the first internal cavity through the cooling port, the cooling medium directly contacts the outer surface of the charging terminal in the first internal cavity, and then enters the second internal cavity through the first port and leaves the second internal cavity through the second port. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal, which can quickly cool the charging terminal. Thus, the cooling efficiency of the charging terminal is high.

[0009] Optionally, the first port is located at the upper edge of the charging terminal, and / or

[0010] The charging terminal is located above the bottom surface of the first internal cavity.

[0011] Optionally, the charging terminal has a partition wall inside to divide the second internal cavity into a first subspace that connects to the first port and a second subspace that connects to the second port, and the partition wall forms a connecting channel connecting the first subspace and the second subspace.

[0012] Optionally, along the axial direction of the charging terminal, the first port and the connecting channel are located at opposite ends of the first subspace, and / or

[0013] Along the axial direction of the charging terminal, the second port is connected to the end of the second subspace that is away from the connecting channel.

[0014] Optionally, the edge of the partition wall that forms the connecting channel extends upward to form a protrusion.

[0015] Optionally, the partition wall includes a plate-like portion that passes through the second internal cavity.

[0016] Optionally, the first subspace and the second subspace are spaced apart along the vertical direction.

[0017] Optionally, the partition wall includes a tubular portion extending through the second internal cavity.

[0018] Optionally, the first subspace is nested within the second subspace.

[0019] Optionally, the second port is located outside the cooling component, and / or

[0020] The second port is located on the upper edge of the charging terminal.

[0021] Optionally, the cooling component is made of plastic, and / or

[0022] The cooling port is used to introduce an insulating cooling medium.

[0023] Optionally, the cooling component has a mounting port, through which the charging terminal passes, and the cooling port is not higher than the mounting port.

[0024] This application also provides a charging gun, which includes the aforementioned cooling device.

[0025] According to the charging gun of this application, the charging gun includes the aforementioned cooling device, so that after the cooling medium enters the first internal cavity from the cooling port, the cooling medium directly contacts the outer surface of the charging terminal in the first internal cavity, and then enters the second internal cavity through the first port and leaves the second internal cavity through the second port. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal, which can quickly cool the charging terminal. Thus, the cooling efficiency of the charging terminal is high.

[0026] This application also provides a charging device, which includes the aforementioned charging gun.

[0027] According to the charging device of this application, the charging device includes the aforementioned charging gun, and the charging gun includes the aforementioned cooling device. After the cooling medium enters the first internal cavity from the cooling port, the cooling medium directly contacts the outer surface of the charging terminal in the first internal cavity, and then enters the second internal cavity through the first port and leaves the second internal cavity through the second port. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal, which can quickly cool the charging terminal. Thus, the cooling efficiency of the charging terminal is high. Attached Figure Description

[0028] To make the advantages of this application more readily apparent, the application briefly described above will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. It is to be understood that these drawings depict only typical embodiments of this application and should not be considered as limiting its scope of protection. The application is described and explained with additional features and details through the drawings.

[0029] Figure 1 This is a perspective view of the cooling device connection cable according to the first preferred embodiment of this application;

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of the cooling components of the cooling device;

[0031] Figure 3 for Figure 1 A cross-sectional view of the cooling components of the cooling device at the mounting opening;

[0032] Figure 4 for Figure 1 A three-dimensional schematic diagram of the charging terminals of the cooling device;

[0033] Figure 5 for Figure 4 A cross-sectional view of the charging terminals of the cooling device;

[0034] Figure 6 for Figure 1 A cross-sectional view of the cooling device connection cable;

[0035] Figure 7 This is a cross-sectional schematic view of the charging terminals of the cooling device according to the second preferred embodiment of this application;

[0036] Figure 8 This is a front view schematic diagram of the cooling component of a cooling device according to a third preferred embodiment of this application; and

[0037] Figure 9 This is a front view schematic diagram of the cooling component of a cooling device according to the fourth preferred embodiment of this application.

[0038] Explanation of reference numerals in the attached figures

[0039] 110: Cooling component; 111: First internal cavity

[0040] 112: Cooling port; 113: Mounting port

[0041] 114: Bottom surface 120: Charging terminal

[0042] 121: Second internal cavity 122: First opening

[0043] 123: Second opening 124: First subspace

[0044] 125: Second subspace 126: Connecting channel

[0045] 127: Divider wall 128: Top edge

[0046] 129: Protrusion 130: First annular flange

[0047] 131: Second annular flange; 132: Terminal connection cavity

[0048] 133: Cable inlet; 140: Limiting element

[0049] 141: Sealing groove; 150: Cable

[0050] 224: First subspace 225: Second subspace

[0051] 226: Connecting Channel 227: Separator

[0052] 229: Protrusion; 310: Cooling component

[0053] 412: Cooling port; 413: Mounting port Detailed Implementation

[0054] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0055] The preferred embodiments of this application will now be described with reference to the accompanying drawings. It should be noted that the terms "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0056] In this document, ordinal numbers such as “first” and “second” used in this application are merely identifiers and do not have any other meaning, such as a specific order.

[0057] To fully understand the embodiments of this application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, other embodiments may be available in addition to these detailed descriptions.

[0058] This application provides a cooling device. The cooling device is used for a charging gun. The charging terminal 120 of the cooling device is used to connect to the charging socket of a vehicle, thereby charging the vehicle. The cooling device enables a cooling medium to contact the outer and inner surfaces of the charging terminal 120, thereby rapidly cooling the charging terminal 120.

[0059] Please refer to Figures 1 to 6 The cooling device includes a cooling component 110. The cooling component 110 has a first internal cavity 111, a cooling port 112 communicating with the first internal cavity 111, and a mounting port 113 communicating with the first internal cavity 111. The cooling port 112 and the mounting port 113 are spaced apart. The cooling port 112 is used to connect to a liquid circuit providing a cooling medium. Thus, a cooling medium can be introduced into the first internal cavity 111 through the cooling port 112.

[0060] Optionally, the cooling member 110 is polygonal. For example, the cooling member 110 is constructed as a roughly cuboid structure. The cooling member 110 has a first side and a second side. The first side is provided with a cooling port 112 and a mounting port 113. The second side is arranged back-to-back with the first side. The second side is provided with a mounting port 113. Thus, the structure of the cooling member 110 is simple.

[0061] Please continue to refer to this. Figures 1 to 6 The cooling device also includes a charging terminal 120. The charging terminal 120 has a cylindrical structure and is made of metal. One end of the charging terminal 120 is used to connect to the cable 150 of the charging pile (described later). The other end of the charging terminal 120 is used to insert into the vehicle's charging socket for electrical connection to the vehicle, thereby charging the vehicle.

[0062] like Figure 5 and Figure 6 As shown, the charging terminal 120 has a second internal cavity 121, and a first opening 122 and a second opening 123 communicating with the second internal cavity 121. The charging terminal 120 passes through the mounting opening 113 on the first side and the mounting opening 113 on the second side. Thus, a portion of the charging terminal 120 is located within the first internal cavity 111. Consequently, the cooling medium located within the first internal cavity 111 can contact the outer surface of the charging terminal 120, thereby cooling the charging terminal 120.

[0063] Please continue to refer to the following: Figure 5 and Figure 6The portion of the charging terminal 120 with the first port 122 is located within the first internal cavity 111. Thus, the first port 122 connects to the first internal cavity 111. The second port 123 connects to the outside of the first internal cavity 111. Thus, as... Figure 6 As indicated by the arrow, the cooling medium in the first internal cavity 111 can enter the second internal cavity 121 through the first port 122, and then flow out of the second internal cavity 121 through the second port 123. During this process, the cooling medium contacts the inner surface of the second internal cavity 121 (the inner surface of the charging terminal 120) to further cool the charging terminal 120.

[0064] In this embodiment, after the cooling medium enters the first internal cavity 111 through the cooling port 112, the cooling medium directly contacts the outer surface of the charging terminal 120 in the first internal cavity 111, and then enters the second internal cavity 121 through the first port 122, and leaves the second internal cavity 121 through the second port 123. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal 120, which can quickly cool the charging terminal 120. Thus, the cooling efficiency of the charging terminal 120 is high.

[0065] Optionally, such as Figure 5 and Figure 6 As shown, the first port 122 is located at the upper edge 128 of the charging terminal 120. Thus, the cooling medium is immersed to the upper edge 128 of the charging terminal 120 before entering the second internal cavity 121 through the first port 122, which can increase the contact area between the cooling medium located in the first internal cavity 111 and the outer surface of the charging terminal 120, thereby improving the cooling efficiency.

[0066] Optionally, such as Figure 6 As shown, the charging terminal 120 is located above the bottom surface 114 of the first internal cavity 111. Therefore, the cooling medium in the first internal cavity 111 gradually fills the first internal cavity 111 from bottom to top, thereby maximizing the contact area between the cooling medium in the first internal cavity 111 and the outer surface of the charging terminal 120, and thus improving cooling efficiency.

[0067] Optionally, such as Figure 5 and Figure 6As shown, the charging terminal 120 has a partition wall 127 inside. The partition wall 127 is located within the second internal cavity 121. The partition wall 127 is connected to the inner wall surface of the second internal cavity 121. In this way, the partition wall 127 divides the second internal cavity 121 into a first subspace 124 and a second subspace 125. The first subspace 124 is connected to the first opening 122. The second subspace 125 is connected to the second opening 123. One end of the partition wall 127 is spaced apart from the inner wall surface of the second internal cavity 121 to form a communication channel 126. The communication channel 126 connects the first subspace 124 and the second subspace 125. Thus, as Figure 5 As indicated by the arrow, the cooling medium in the first internal cavity 111 can enter the first subspace 124 through the first port 122, and then flow out of the second internal cavity 121 sequentially through the connecting channel 126, the second subspace 125, and the second port 123. During this process, the cooling medium contacts the surface of the partition wall 127 and the inner wall of the second internal cavity 121, increasing the contact area between the cooling medium and the charging terminal 120 in the second internal cavity 121, thereby improving the cooling efficiency.

[0068] Optionally, such as Figure 5 As shown, along the axial direction of the charging terminal 120, the first port 122 and the connecting channel 126 are located at opposite ends of the first subspace 124. Thus, the cooling medium entering the first subspace 124 diffuses from one end to the other along the axial direction of the charging terminal 120. This maximizes the contact area between the cooling medium and the partition wall 127, thereby improving cooling efficiency.

[0069] Optionally, such as Figure 5 As shown, the edge of the partition wall 127 that forms the connecting channel 126 extends upward to form a protrusion 129. Therefore, when the cooling medium first enters the first subspace 124, the protrusion 129 blocks the cooling medium. Only after the cooling medium has accumulated and submerged the protrusion 129 does it enter the second subspace 125 via the connecting channel 126. This increases the residence time of the cooling medium in the first subspace 124, thereby improving cooling efficiency.

[0070] Alternatively, please continue to refer to Figure 5 The partition wall 127 includes a plate-shaped portion that passes through the second internal cavity 121. The plate-shaped portion has a plate-like structure. The plane containing the plate-shaped portion extends horizontally. Therefore, the structure of the partition wall 127 is simple.

[0071] Optionally, such as Figure 5 As shown, the first subspace 124 and the second subspace 125 are spaced apart in the vertical direction. This maximizes the contact area between the cooling medium and the partition wall 127, thereby improving cooling efficiency.

[0072] Optionally, such as Figure 5 As shown, along the axial direction of the charging terminal 120, the second port 123 connects to the end of the second subspace 125 furthest from the connecting channel 126. In this way, the cooling medium entering the second subspace 125 moves along the axial direction of the charging terminal 120 and spreads from one end of the second subspace 125 to the other. This maximizes the contact area between the cooling medium and the second subspace 125, thereby improving cooling efficiency.

[0073] Optionally, such as Figure 4 and Figure 5 As shown, the second port 123 is located at the upper edge 128 of the charging terminal 120. Thus, the cooling medium fills the second internal cavity 121 before flowing out of the second internal cavity 121 through the second port 123, which increases the contact area between the cooling medium in the second internal cavity 121 and the outer surface of the charging terminal 120, thereby improving the cooling efficiency.

[0074] Optionally, such as Figure 1 and Figure 6 As shown, the second port 123 is located outside the cooling member 110. Therefore, there is no need for other structures to connect the second port 123 to the outside of the cooling member 110, and the structure of the cooling device is simple.

[0075] Optionally, the cooling port 112 is used to introduce an insulating cooling medium. This allows the cooling medium to directly contact the charging terminal 120, thereby improving cooling efficiency.

[0076] Optionally, the cooling component 110 is made of plastic. As a result, the cooling component 110 has poor thermal conductivity.

[0077] Optionally, such as Figure 1 and Figure 2 As shown, the cooling port 112 is not higher than the mounting port 113. Specifically, the cooling port 112 is located below the mounting port 113. Each cooling component 110 is provided with two spaced-apart charging terminals 120. The cooling port 112 is located between the two charging terminals 120. Thus, the structure of the cooling component 110 is simple. In addition, it can prevent the cooling medium entering the first internal cavity 111 from directly entering the first port 122, thereby maximizing the contact between the cooling medium and the outer surface of the charging terminal 120, thereby improving cooling efficiency.

[0078] Furthermore, such as Figure 1 As shown, along the axial direction of the charging terminal 120, the cooling port 112 is located on the side of the cooling member 110 near the cable 150. This facilitates the connection of a liquid circuit that provides the cooling medium.

[0079] Optionally, such as Figure 5 and Figure 6As shown, the charging terminal 120 also has a terminal connection cavity 132 and a cable inlet 133 communicating with the terminal connection cavity 132. The terminal connection cavity 132 is located at one end of the second subspace 125 away from the communication channel 126. The second inlet 123 communicates with the terminal connection cavity 132 to communicate with the second subspace 125.

[0080] The charging station includes a cable 150. The cable 150 can be a liquid-cooled cable. The cable 150 includes a sheath surrounding a conductor. A medium channel for the flow of cooling medium is formed between the conductor and the sheath. The conductor extends from the cable inlet 133 into the terminal connection cavity 132 and is sealed and welded to the inner surface of the terminal connection cavity 132, thereby blocking the cable inlet 133. In this way, the cooling medium within the second subspace 125 can flow out of the terminal connection cavity 132 through the second port 123.

[0081] Alternatively, please refer to Figures 4 to 6 The charging terminal 120 has a first annular flange 130. Along the axial direction of the charging terminal 120, the first annular flange 130 is located between a first port 122 and a second port 123. A sleeve is fitted onto the outer peripheral surface of the first annular flange 130 and is sealed to the first annular flange 130. At this time, the second port 123 communicates with the medium channel for the flow of cooling medium.

[0082] Furthermore, such as Figures 4 to 6 As shown, the charging terminal 120 has a second annular flange 131. The outer diameter of the second annular flange 131 is smaller than the outer diameter of the first annular flange 130. Along the axial direction of the charging terminal 120, the second annular flange 131 is located on the side of the first annular flange 130 away from the first opening 122 and is connected to the first annular flange 130. A second opening 123 is provided at the second annular flange 131. Therefore, the charging terminal 120 has high strength at the second opening 123.

[0083] Optionally, such as Figures 4 to 6 As shown, the charging terminal 120 also includes a limiting member 140. The limiting member 140 is detachably connected to the outer peripheral surface of the charging terminal 120. Along the axial direction of the charging terminal 120, the cooling member 110 is located between the first annular flange 130 and the limiting member 140. Thus, the first annular flange 130 and the limiting member 140 can define the position of the cooling member 110 along the axial direction of the charging terminal 120.

[0084] Furthermore, the limiting member 140 has a sealing groove 141. The charging gun also includes a housing (not shown) and a sealing ring (not shown). A cooling member 110 is located within the housing. One end of the charging terminal 120, away from the cable inlet 133, is located outside the housing for insertion into the vehicle's charging socket to charge the vehicle. The sealing ring is disposed within the sealing groove 141 to seal the gap between the limiting member 140 and the housing.

[0085] Optionally, the cooling component 110 is sealed to the charging terminal 120 to seal the gap between the charging terminal 120 and the cooling component 110, thereby preventing leakage.

[0086] Second Implementation Method

[0087] like Figure 7 As shown, in the second embodiment, the partition wall 227 includes a tubular portion passing through the second internal cavity. The tubular portion has a tubular structure. Thus, the internal space of the tubular portion constitutes a second subspace 225. The outer wall surface of the tubular portion and the inner wall surface of the second internal cavity constitute a first subspace 224. One end of the tubular portion forms a connecting channel 226. The end of the tubular portion forming the connecting channel 226 bends upward and protrudes to form a protrusion 229. As a result, the partition wall 227 has high strength.

[0088] In the second embodiment, the first subspace 224 is constructed as a circumferentially closed annular structure. The first subspace 224 is fitted within the second subspace 225. This increases the contact area between the cooling medium and the partition wall 227, thereby improving cooling efficiency.

[0089] The other settings of the second embodiment are largely the same as those of the first embodiment, and will not be described in detail here.

[0090] Third Implementation Method

[0091] In the third embodiment, such as Figure 8 As shown, the cooling component 310 is octagonal. Therefore, the cooling component 310 has a small external dimension.

[0092] Fourth Implementation Method

[0093] In the fourth embodiment, such as Figure 9 As shown, the height of the cooling port 412 and the height of the mounting port 413 at least partially overlap.

[0094] This application also provides a charging gun. The charging gun includes the aforementioned cooling device.

[0095] In this embodiment, the charging gun includes the aforementioned cooling device. After the cooling medium enters the first internal cavity 111 through the cooling port 112, the cooling medium directly contacts the outer surface of the charging terminal 120 in the first internal cavity 111. Then, it enters the second internal cavity 121 through the first port 122 and leaves the second internal cavity 121 through the second port 123. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal 120, which can quickly cool the charging terminal 120. Thus, the cooling efficiency of the charging terminal 120 is high.

[0096] This application also provides a charging device. The charging device includes the aforementioned charging gun.

[0097] In this embodiment, the charging device includes the aforementioned charging gun, which includes the aforementioned cooling device. After the cooling medium enters the first internal cavity 111 through the cooling port 112, the cooling medium directly contacts the outer surface of the charging terminal 120 in the first internal cavity 111. Then, it enters the second internal cavity 121 through the first port 122 and leaves the second internal cavity 121 through the second port 123. During this process, the cooling medium contacts the outer and inner surfaces of the charging terminal 120, which can quickly cool the charging terminal 120. Thus, the cooling efficiency of the charging terminal 120 is high.

[0098] This application has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the scope of the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.

[0099] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “component” as used herein may refer to a single part or a combination of multiple parts. Terms such as “installation” or “installation” as used herein may refer to a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

Claims

1. A cooling device, characterized in that, The cooling device includes: A cooling component having a first internal cavity and a cooling port communicating with the first internal cavity for allowing a cooling medium to enter the first internal cavity; A charging terminal having a second internal cavity and a first port and a second port communicating with the second internal cavity, wherein the portion of the charging terminal having the first port is located within the first internal cavity, the first port communicating with the first internal cavity, and the second port communicating with the outside of the first internal cavity, wherein one end of the charging terminal has a cable inlet for connecting a cable, and the other end of the charging terminal away from the cable inlet is located outside the cooling member for insertion into the charging socket of the vehicle; The first port is located at the upper edge of the charging terminal; The cooling component has a mounting port, the charging terminal passes through the mounting port, and the cooling port is located below the mounting port; The charging terminal has a partition wall inside to divide the second internal cavity into a first subspace that connects to the first port and a second subspace that connects to the second port. The partition wall forms a connecting channel between the first subspace and the second subspace. The partition wall forms a protrusion by extending upward along the edge of the connecting channel.

2. The cooling device according to claim 1, characterized in that, The charging terminal is located above the bottom surface of the first internal cavity.

3. The cooling device according to claim 1, characterized in that, Along the axial direction of the charging terminal, the first port and the connecting channel are respectively located at both ends of the first subspace, and / or Along the axial direction of the charging terminal, the second port is connected to one end of the second subspace away from the communication channel.

4. The cooling device according to claim 1, characterized in that, The partition wall includes a plate-like portion that passes through the second internal cavity.

5. The cooling device according to claim 4, characterized in that, The first subspace and the second subspace are spaced apart along the vertical direction.

6. The cooling device according to claim 1, characterized in that, The partition wall includes a tubular portion that passes through the second internal cavity.

7. The cooling device according to claim 6, characterized in that, The first subspace is nested within the second subspace.

8. The cooling device according to claim 1, characterized in that, The second port is located outside the cooling component, and / or The second port is located at the upper edge of the charging terminal.

9. The cooling device according to claim 1, characterized in that, The cooling component is a plastic part, and / or The cooling port is used to introduce an insulating cooling medium.

10. A charging gun, characterized in that, The charging gun includes a cooling device according to any one of claims 1 to 9.

11. A charging device, characterized in that, The charging device includes the charging gun according to claim 10.

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