Socket end cooling structure and socket
By designing curved heat dissipation channels and a closed coolant circulation system at the socket end, the problem of severe overheating at the socket terminals was solved, improving the socket's high current carrying capacity and fast charging capability, and reducing production difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-27
AI Technical Summary
During high-current testing, existing charging sockets exhibit severe overheating issues in their terminal cooling structure, particularly at the DC socket solder joints, which results in an inability to achieve ultra-high current charging.
A socket-end cooling structure is designed, including first and second heat sinks. The first heat sink is arranged with a curved heat dissipation channel around the DC socket. The second heat sink is fixed at the welding point and connected to the first heat dissipation channel. Combined with the water circuit shell and sealing element, a closed channel is formed. The coolant circulates in the channel, and the cooling effect is controlled by a temperature sensor.
It achieves comprehensive and efficient cooling of the DC socket, improves the high current carrying capacity and fast charging performance of the socket, and reduces manufacturing difficulty and cost.
Smart Images
Figure CN224053454U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of charging, in particular to a socket end cooling structure and a socket. BACKGROUND
[0002] In the process of popularization of new energy vehicles, at present, most of the national standard DC liquid cooling sockets have few application cases; in the process of testing of the high-power liquid cooling socket under large current, the limitation of the charging socket terminal cooling structure is found, the DC socket welding position of the charging socket terminal is the highest temperature rising point; the fact that the insulating cooling liquid cannot realize effective cooling channels in the internal contact of the DC socket is also an important factor leading to the failure to realize the super-large current, and the charging terminal pin socket needs to be fully cooled by the cooling liquid in view of the phenomenon. CONTENT OF THE UTILITY MODEL
[0003] The application aims to provide a socket end cooling structure and a socket to solve the defect that the socket is seriously heated under large current in the prior art.
[0004] To achieve the above-mentioned purpose, the application is implemented by adopting the following technical scheme:
[0005] In a first aspect, the application discloses a socket end cooling structure, which comprises
[0006] A first heat sink is mounted on the outer periphery of the DC socket, and a first heat dissipation flow channel in a curved shape is arranged on the first heat sink, and the first heat dissipation flow channel is arranged around the DC socket;
[0007] A second heat sink is fixed at the welding position of the DC socket, and a second heat dissipation flow channel is arranged in the second heat sink, and the second heat dissipation flow channel is connected with the first heat dissipation flow channel.
[0008] In a further scheme of the application, a heat dissipation groove in a curved shape is arranged on the first heat sink, and a water channel shell is fixed outside the first heat sink, and the water channel shell and the heat dissipation groove form the first heat dissipation flow channel.
[0009] In a further scheme of the application, sealing members are fixed at both ends of the first heat dissipation flow channel.
[0010] In a further scheme, the first heat sink comprises a spiral heat dissipation block and a flow guide block.
[0011] A liquid inlet flow channel is arranged in the flow guide block, a spiral channel is arranged on the surface of the spiral heat dissipation block, the spiral channel and the water channel shell form the first heat dissipation flow channel, and the liquid inlet flow channel is connected with the inlet of the first heat dissipation flow channel.
[0012] Further, the plurality of spiral heat dissipation blocks are connected with the flow guide block, and the flow guide block is further provided with a shunt flow channel, and a plurality of flow channel ports in the shunt flow channel correspond to and connect with a plurality of liquid inlet ports of the first heat dissipation flow channels.
[0013] Further, the liquid inlet port of the second heat dissipation flow channel is connected with the liquid outlet port of the first heat dissipation flow channel through a liquid path adapter module, the liquid inlet port of the liquid path adapter module is connected with the liquid outlet port of the first heat dissipation flow channel, and the liquid outlet port of the liquid path adapter module is connected with the liquid inlet port of the second heat dissipation flow channel.
[0014] Further, the second heat dissipation body is provided with a temperature sensor, and the temperature sensor is connected with a cooling control system.
[0015] In a second aspect, the application discloses a socket, which comprises the socket end cooling structure.
[0016] Further, the socket further comprises an insulating sleeve and an insulating plate, the insulating plate is fixed on the DC socket and in contact with the first heat dissipation body, and the insulating sleeve is fixedly connected with the insulating plate.
[0017] The application has the following beneficial effects:
[0018] The first heat dissipation body and the second heat dissipation body designed in the application, the first heat dissipation flow channel in the form of a curve arranged in the first heat dissipation body can increase the heat conduction path, so that the heat is fully exchanged, the heat dissipation amount is increased, the second heat dissipation flow channel in the second heat dissipation body is connected with the first heat dissipation flow channel, the DC socket welding position is synchronously cooled, the whole socket is efficiently cooled in all aspects, the high current carrying capacity of a small cross-section conductor is realized, and therefore the high current carrying and fast charging of the socket are met.
[0019] The first heat dissipation flow channel is formed by wrapping the first heat dissipation body with the water path shell, so that the socket pin socket can be conveniently assembled outside, and the cooling of a plurality of socket pins is facilitated, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 FIG. 1 is a structural schematic diagram of a socket end cooling structure in the application;
[0021] Figure 2 FIG. 2 is a schematic diagram of an assembly structure of the socket end cooling structure in the application;
[0022] Figure 3 FIG. 3 is an axial sectional view of a spiral heat dissipation block in the application.
[0023] In the application,
[0024] 1, insulation sleeve; 2, DC socket; 3, insulation plate; 4, waterway shell; 102, spiral heat dissipation block; 1021, spiral channel; 6, sealing element; 7, temperature sensor; 8, liquid path switching module; 100, first heat sink; 200, second heat sink; 101, flow guide block; 1011, liquid inlet channel; 1012, shunt channel; 201, second heat dissipation channel. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use.
[0026] The socket end cooling structure in the embodiment includes a first heat sink 100 and a second heat sink 200. The first heat sink 100 cools the outer periphery of the DC socket 2, and the second heat sink 200 cools the welding position of the DC socket 2. The first heat sink 100 is installed on the outer periphery of the DC socket 2, and a curved first heat dissipation channel is arranged on the first heat sink 100, which surrounds the DC socket 2. The second heat sink 200 is fixed at the welding position of the DC socket 2, and a second heat dissipation channel 201 is arranged in the second heat sink 200, which is connected with the first heat dissipation channel.
[0027] When in use, the cooling liquid enters the first heat dissipation channel, and flows in the curved first heat dissipation channel to quickly cool the surface of the DC socket 2. At the same time, the cooling liquid enters the second heat dissipation channel 201 to cool the welding position of the DC socket 2. The two channels can be connected to realize the circulation of the cooling liquid, so as to achieve the effect of continuous and efficient cooling.
[0028] As shown in the accompanying drawings Figure 1 and Figure 3As shown, in some embodiments, the socket end cooling structure is specifically designed as follows: a curved heat dissipation groove is arranged on the first heat sink 100; the water channel shell 4 is fixed outside the first heat sink 100, and the water channel shell 4 is tightly sleeved with the heat dissipation groove, so that the interval between the water channel shell 4 and the heat dissipation groove constitutes the first heat dissipation flow channel; the cooling liquid can flow in the first heat dissipation flow channel. Since the first heat dissipation flow channel as a whole presents a curve, the combination of the heat dissipation groove and the water channel shell 4 is used to form, which facilitates the machining of parts and greatly reduces the manufacturing difficulty and cost compared with the injection molding process. The designer considers that the flowing liquid in the flow channel needs to be sealed, so the sealing member 6 is fixed at both ends of the first heat dissipation flow channel during installation.
[0029] In further embodiments, as shown in FIG. 6, the first heat sink 100 includes a spiral heat dissipation block 102 and a flow guide block 101; the flow guide block 101 is provided with a liquid inlet flow channel 1011, and the surface of the spiral heat dissipation block 102 is provided with a spiral channel 1021; the spiral channel 1021 and the water channel shell 4 constitute the first heat dissipation flow channel, and the liquid inlet flow channel 1011 is connected with the first heat dissipation flow channel. Figure 2 Figure 3 In further embodiments, as shown in FIG. 6, the first heat sink 100 includes a spiral heat dissipation block 102 and a flow guide block 101; the flow guide block 101 is provided with a liquid inlet flow channel 1011, and the surface of the spiral heat dissipation block 102 is provided with a spiral channel 1021; the spiral channel 1021 and the water channel shell 4 constitute the first heat dissipation flow channel, and the liquid inlet flow channel 1011 is connected with the first heat dissipation flow channel.
[0030] In further embodiments, as shown in FIG. 6, the first heat sink 100 includes a spiral heat dissipation block 102 and a flow guide block 101; the flow guide block 101 is provided with a liquid inlet flow channel 1011, and the surface of the spiral heat dissipation block 102 is provided with a spiral channel 1021; the spiral channel 1021 and the water channel shell 4 constitute the first heat dissipation flow channel, and the liquid inlet flow channel 1011 is connected with the first heat dissipation flow channel.
[0031] As mentioned above, the coolant can circulate within the first and second heat dissipation channels 201. The inlet of the second heat dissipation channel 201 is connected to the outlets of the two first heat dissipation channels via a liquid path conversion module 8. The inlet of the liquid path conversion module 8 is connected to the outlets of the two first heat dissipation channels, and the outlet of the liquid path conversion module 8 is connected to the inlet of the second heat dissipation channel 201. In this embodiment, the liquid path conversion module has two inlets, corresponding to the outlets of the two first heat dissipation channels. In actual production, the liquid path conversion module 8 is designed in a Y-shape, etc., to collect the coolant in the two first heat dissipation channels and then flow into the second heat dissipation channel 201. This provides heat dissipation and cooling for the welding part of the DC socket 2. In this embodiment, considering that the welding part of the DC socket 2 generates a large amount of heat, two outlets are provided on the second heat dissipation channel 201 to accelerate the discharge of coolant and improve the heat dissipation efficiency. Typically, a socket needs to be designed with two DC sockets 2, namely DC- and DC+, so two spiral heat sinks 102 are designed.
[0032] During use, the coolant flows from the inlet into the branch channel 1012 via the inlet channel 1011. From the branch channel 1012, the coolant splits into two and flows into the spiral heat sinks 102 on both sides. In the first heat sink channel, the coolant flows spirally to the outlet of the spiral heat sink 102 and then into the liquid path transfer module 8 (e.g., ...). Figure 3 As shown in the diagram, the spiral heat sink 102 and the water channel housing 4 form a sealed cavity through front and rear O-rings. Then, the liquid enters the second heat dissipation channel 201 through two paths from the liquid transfer module 8, carrying away the heat. The cooling liquid enters the second heat sink 200 through the liquid transfer module 8 according to the flow direction, and is divided into two to enter the second heat dissipation channel 201. At the same time, the cooling liquid also dissipates heat from the tail of the core component. In order to monitor the temperature of the heat source during production, a temperature sensor 7 is installed in the second heat sink 200. The temperature sensor 7 is connected to the cooling control system. The cooling control system adaptively adjusts the pump power of the cooling liquid according to the temperature feedback from the temperature sensor 7 through the calculated program.
[0033] In another embodiment, a socket is disclosed that includes the socket-end cooling structure of the above embodiment;
[0034] The DC socket 2 is also provided with an insulating sleeve 1 and an insulating plate 3. The insulating plate 3 is fixed on the DC socket 2 and in contact with the first heat sink 100. The insulating sleeve 1 is fixedly connected to the insulating plate 3. When used with the plug, the insulating sleeve 1 and the plate can improve the safety of use. In addition, the cavity formed by the insulating sleeve 1 and the insulating plate 3 also meets the guiding requirements.
[0035] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0036] In the description of the application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
Claims
1. A socket end cooling structure for cooling of a DC socket, characterized in that, Comprising A first heat sink; the first heat sink is mounted on the outer periphery of the DC socket, and a curved first heat dissipation channel is arranged on the first heat sink, and the first heat dissipation channel is arranged around the DC socket; A second heat sink is fixed at the welding position of the DC socket, and a second heat dissipation channel is arranged in the second heat sink, and the second heat dissipation channel is connected with the first heat dissipation channel.
2. The socket end cooling structure according to claim 1, characterized by The first heat sink is provided with a curved heat dissipation groove; the first heat sink is externally fixed with a water channel shell, and the water channel shell and the heat dissipation groove form a first heat dissipation channel.
3. The socket end cooling structure of claim 1, wherein Both ends of the first heat dissipation channel are fixed with sealing elements.
4. The socket end cooling structure according to claim 2, characterized by The first heat sink comprises a spiral heat dissipation block and a flow guide block; The flow guide block is provided with a liquid inlet channel, and the spiral heat dissipation block is provided with a spiral channel on the surface, the spiral channel and the water channel shell form a first heat dissipation channel, and the liquid inlet channel is connected with the inlet of the first heat dissipation channel.
5. The socket end cooling structure according to claim 4, characterized by The spiral heat dissipation block is a plurality of, a plurality of the spiral heat dissipation block and the water channel shell form a plurality of first heat dissipation channels; a plurality of the spiral heat dissipation block and the flow guide block are connected, and the flow guide block is further provided with a shunt channel, and the liquid outlet of a plurality of channel ports in the shunt channel is connected with the liquid inlet of a plurality of the first heat dissipation channels one by one.
6. The socket end cooling structure according to claim 5, characterized by The liquid inlet of the second heat dissipation channel is connected with the liquid outlet of a plurality of the first heat dissipation channels through a liquid path adapter module, the liquid inlet of the liquid path adapter module is connected with the liquid outlet of a plurality of the first heat dissipation channels, and the liquid outlet of the liquid path adapter module is connected with the liquid inlet of the second heat dissipation channel.
7. The socket end cooling structure of claim 1, wherein The second heat sink is provided with a temperature sensor, and the temperature sensor is signal connected with a cooling control system.
8. A socket, characterized by The socket further comprises an insulating sleeve and an insulating plate, the insulating plate is fixed on the DC socket and in contact with the first heat sink, and the insulating sleeve is fixedly connected with the insulating plate.
9. A socket according to claim 8, wherein The socket further comprises an insulating sleeve and an insulating plate, the insulating plate is fixed on the DC socket and in contact with the first heat sink, and the insulating sleeve is fixedly connected with the insulating plate.