A liquid cooling connector

Abstract

The present invention provides a liquid-cooled connector, comprising a flow channel positioning member, a shell coaxially sleeved on the outside of the flow channel positioning member, and a sealing ring for sealing the flow channel positioning member and the shell, the flow channel positioning member is provided with a cooling chamber and a heat dissipation flow channel, the cooling chamber is connected to the heat dissipation flow channel and is externally connected to a liquid guide terminal. The external cooling medium of the present application can realize the circulation cooling of the connector, improve the poor heat dissipation performance of the traditional connector, and enhance the cooling effect of the connector.

Description

Technical Field

[0001] The present invention relates to the technical field of connector cooling, and more particularly to a liquid cooling connector. Background Art

[0002] With the rapid development of new energy technologies, transportation equipment such as cars and bicycles are moving towards electrification.

[0003] As a new energy vehicle, the low charging rate has always been considered one of the aspects that people think is inferior to traditional fuel vehicles. Improving the charging power is one of the direct factors affecting the charging rate. High-power charging means high current or high voltage. According to Joule's law, it will inevitably lead to higher charging temperature. The metal resistivity is related to temperature. The higher the temperature, the greater the resistance. This has a negative impact not only on the charging gun, but also on other high-current and high-voltage connectors:

[0004] 1. The higher the temperature rise, the greater the resistance of the conductive metal, which further increases the temperature rise, forming a vicious cycle;

[0005] 2. The higher temperature during operation will reduce the elasticity of the springs that contact the male and female connectors. The reduced terminal contact force leads to increased contact resistance, which further increases the problem and affects current transmission.

[0006] 3. If metal works at high temperature for a long time, its original structural design performance will be reduced and the life requirement will not be met. At the same time, the system functionality will also be reduced.

[0007] Based on the above problems, currently, the commonly used cooling methods on the market mostly use metal materials with low resistivity and use terminals with larger cross-sectional areas. Although this has a certain effect, it cannot control the temperature rise to a greater extent, and the heat accumulation phenomenon is still serious. Summary of the invention

[0008] The present invention provides a liquid cooling connector, which solves the technical problem that the traditional connector has a poor cooling effect.

[0009] The present invention provides a liquid cooling connector, comprising a flow channel positioning member, a shell coaxially sleeved on the outside of the flow channel positioning member and a sealing ring for sealing the flow channel positioning member and the shell, wherein the flow channel positioning member is provided with a cooling chamber and a heat dissipation flow channel, and the cooling chamber is connected to a liquid guide terminal.

[0010] Preferably, the flow channel positioning component includes a main body, a packaging plate packaged on the top and bottom surfaces of the main body, and a heat dissipation flow channel arranged on the outer periphery of the main body, the main body is provided with an inner inlet and an inner outlet, the packaging chassis is provided with the liquid guide terminal, the cooling chamber is provided with an inner inlet channel and an inner outlet channel connected to the liquid guide terminal, and the main body is sealed with the packaging top plate and the packaging chassis to form the cooling chamber.

[0011] Preferably, the heat dissipation channel is composed of a plurality of channel columns that are staggeredly distributed up and down.

[0012] Preferably, the flow channel columns are distributed at equal intervals on the outer peripheral surface of the body.

[0013] Preferably, the heat dissipation channel has a serpentine structure.

[0014] Preferably, the flow channel partition is connected to the main body by welding or is an integrally formed structure.

[0015] Preferably, the liquid conducting terminal comprises a cooling medium inlet pipe and a cooling medium outlet pipe, and both the cooling medium inlet pipe and the cooling medium outlet pipe are installed on the flow channel positioning member and are in communication with the cooling chamber.

[0016] Preferably, the flow channel positioning member is coaxially arranged with the housing.

[0017] Preferably, the flow channel positioning member and the housing have an interference fit or a transition fit.

[0018] Preferably, it also includes a secondary positioning member coaxially arranged on the inner end face of the flow channel positioning member, an outer nut sleeve and a sleeve which are mounted on the outside of the outer shell and are adapted to an external connector, a top cover assembled on the end of the outer nut sleeve, a nut retaining spring for preventing the outer nut sleeve from moving, a secondary positioning member retaining spring for mutual matching and limiting the position with the outer shell, a claw threadedly connected to the sleeve, and an inner nut sleeve for wrapping the wire.

[0019] The liquid-cooled connector provided by the present invention is provided with a flow channel positioning member, a shell mounted on the outside of the flow channel positioning member, and a sealing ring arranged between the flow channel positioning member and the shell. The flow channel positioning member is provided with a cooling chamber and a heat dissipation flow channel. By connecting an external cooling medium through inlet and outlet pipes, circulating cooling of the connector can be achieved, which significantly improves the cooling effect of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 A cross-sectional view of the liquid cooling connector provided by the present invention;

[0022] Figure 2 A partial schematic diagram of a liquid cooling connector provided by the present invention;

[0023] Figure 3 An exploded view of the liquid cooling connector provided by the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the liquid cooling connector provided by the present invention;

[0025] Figure 5 This is a schematic structural diagram of the liquid-cooling connector provided by the present invention from another angle.

[0026] Among them, 1-flow channel positioning part, 2-housing, 3-sealing ring, 4-heat dissipation flow channel, 5-cooling medium inlet pipe, 6-cooling medium outlet pipe, 7-secondary positioning part, 8-outer nut sleeve, 9-sleeve, 10-top cover, 11-inner nut sleeve, 12-nut retaining spring, 13-claw, 14-secondary positioning part retaining spring, 15-conductive terminal. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Please refer to Figures 1 to 5 , Figure 1 A cross-sectional view of the liquid cooling connector provided by the present invention;

[0030] Figure 2 A partial schematic diagram of a liquid cooling connector provided by the present invention; Figure 3 An exploded view of the liquid cooling connector provided by the present invention; Figure 4 This is a schematic diagram of the structure of the liquid cooling connector provided by the present invention; Figure 5 This is a schematic structural diagram of the liquid-cooling connector provided by the present invention from another angle.

[0031] The present invention provides a liquid-cooling connector, comprising a flow channel positioning member 1, a shell 2, a sealing ring 3 and a liquid-conducting terminal.

[0032] The flow channel positioning member 1 and the outer shell 2 are coaxially arranged, and the outer shell 2 is mounted on the outside of the flow channel positioning member 1. The outer shell 2 is used for external protection of the connector, and its inner surface is in close contact with the outer surface of the flow channel positioning member 1, so that the cooling medium flow channel is closed to prevent liquid from flowing from the path. The flow channel positioning member 1 and other components are installed from the outer shell 2; the sealing ring 3 is used as a waterproof part when the male and female connectors are mated, which can prevent liquid from entering. The sealing ring 3 can also be used for sealing when the flow channel positioning member 1 and the outer shell 2 are mated to prevent leakage of the cooling medium.

[0033] A hole for a liquid conducting terminal is reserved inside the flow channel positioning member 1 , and slots are opened inside and on the radial outer surface thereof to serve as a heat dissipation flow channel 4 .

[0034] In addition, the flow channel positioning member 1 in the present application is provided with a cooling chamber inside to accommodate coolant, the cooling chamber is connected to the heat dissipation flow channel 4, the liquid guide terminal includes a cooling medium inlet pipe 5 and a cooling medium outlet pipe 6, the cooling medium inlet pipe 5 and the cooling medium outlet pipe 6 are both installed on the flow channel positioning member 1, the cooling medium inlet pipe 5 and the cooling medium outlet pipe 6 are connected to the cooling chamber, liquid is supplied to the cooling chamber through the cooling medium inlet pipe 5, the coolant is discharged from the flow channel positioning member 1 through the cooling medium outlet pipe 6, and flows into the heat dissipation flow channel 4, thereby realizing circulating cooling of the flow channel positioning member 1.

[0035] The cooling principle of the present application is: an external low-temperature cooling medium enters the cooling chamber, and while absorbing the heat of the flow channel positioning member 1, it directly contacts the metal shell 2, transfers part of the heat to the metal shell 2, and diffuses into the environment through the shell 2, and the remaining heat is directly taken away by the coolant and flows out from the cooling medium outlet to achieve a cooling effect.

[0036] The flow channel positioning member 1 and the housing 2 are preferably coaxially arranged, and the two are interference fit or transition fit to ensure installation firmness and sealing.

[0037] In a specific embodiment, the flow channel positioning member 1 includes a main body, a packaging disk and a heat dissipation flow channel 4, the packaging disk is packaged on the top and bottom surfaces of the main body, the heat dissipation flow channel 4 is arranged on the outer peripheral surface of the main body, the main body is provided with an inner inlet and an inner outlet, the packaging chassis is provided with a liquid guide terminal, the cooling chamber is provided with an inner inlet channel and an inner outlet channel corresponding to the liquid guide terminal, the packaging disk includes a packaging top plate and a packaging bottom plate, and the main body is sealed with the packaging top plate and the packaging bottom plate to form a cooling chamber.

[0038] Specifically, the heat dissipation channel 4 is composed of a plurality of channel columns that are staggered and distributed up and down, such as Figure 2As shown, the inner flow channel is close to the contact plane with the cooling medium inlet pipe 5 and the cooling medium outlet pipe 6, and the internal heat of the flow channel positioning member 1 is exported to the outer flow channel formed by the flow channel partitions staggered up and down. While the cooling medium in the outer heat dissipation flow channel 4 absorbs the heat of the flow channel positioning member 1, it directly contacts the metal shell 2, transfers part of the heat to the shell 2, and diffuses it into the environment, and the rest of the heat is directly taken away by the coolant and flows out from the cooling medium outlet.

[0039] The cooling medium flow path is as follows: the cooling medium inlet pipe 5 enters the flow channel positioning member 1, passes through the internal flow channel, reaches the outer heat dissipation flow channel 4 from the internal outlet, uses the flow channel partition to increase the flow path, and finally enters the inner inlet, passes through the internal flow channel and is discharged from the cooling medium outlet pipe 6. The flow channel partition structure is used to separate the inner inlet from the inner outlet, preventing the cooling medium from directly entering the outlet from the inlet and preventing it from flowing along the preset path.

[0040] Preferably, the flow channels are distributed on the outer peripheral surface of the body in columns with equal spacing. In order to ensure the cooling effect, the heat dissipation flow channels 4 are distributed on the outer peripheral surface of the body in a serpentine structure.

[0041] In order to ensure the connection strength, the flow channel fence is welded to the body or is an integrally formed structure.

[0042] This application has the following technical advantages:

[0043] 1. The built-in cooling structure can remove the heat generated during operation and suppress the temperature rise;

[0044] 2. Liquid cooling is adopted, and the cooling effect is significantly stronger than air cooling and natural cooling. Compared with traditional electrical connectors, its cooling effect is better;

[0045] 3. The present application is designed for the flow channel. The fluid flows along the internal flow channel and the heat dissipation flow channel 4. The flow path is fixed and can take away the heat after fully contacting the inside of the connector. The flow channel is reasonably set to achieve the best heat dissipation effect.

[0046] 4. This solution improves existing components to create a space for accommodating cooling medium, which can be extended to various types of existing connectors, or directly improved on the present invention. It is applicable to all types of PINs, regardless of the number, size, and shape, and has a wide range of applications.

[0047] On the basis of the above embodiments, the liquid-cooled connector provided in the present application is further provided with a secondary positioning member 7, an outer nut sleeve 8, a sleeve 9, a top cover 10, an inner nut sleeve 11, a nut retaining spring 12, a claw 13 and a secondary positioning member retaining spring 14.

[0048] The secondary positioning member 7 is coaxially arranged with the flow channel positioning member 1, and the secondary positioning member 7 is closely mounted on the inner end surface of the flow channel positioning member 1, and the outer shell 2 is sleeved on the outside of the flow channel positioning member 1 and the secondary positioning member 7. The outer nut sleeve 8 and the sleeve 9 are coaxially sleeved on the outside of the outer shell 2, and the outer nut sleeve 8 is used to match the external connector. The matching ends of the outer nut sleeve 8 and the external connector are provided with threads, and the two are threadedly connected. The top cover 10 is installed at the ends of the outer nut sleeve 8 and the outer shell 2, and is used to fix the internal structure and limit the internal structure. The positioning member and other components are installed from the outer shell 2.

[0049] Conductive terminal holes are reserved inside the flow channel positioning member 1, and slots are opened inside and on the radial outer surface thereof as cooling medium flow channels for installing the cooling medium inlet pipe 5 and the cooling medium outlet pipe 6; the nut retaining spring 12 cooperates with the housing 2 to prevent the axial movement of the outer nut sleeve 1.

[0050] In addition, the secondary positioning member spring 14 and the housing 2 are mutually limited to prevent the internal components from moving toward the rear of the housing 2. The claw 13 and the inner nut sleeve 11 wrap the wire to prevent its axial movement, reducing the force between the interference-fit conductive terminal 15 on the flow channel positioning member 1 and the wire and the force at the connection of the conductive terminal 15 of the liquid cooling water pipe. Wrap the wire and the liquid cooling water pipe at the rear end of the connector. The above-mentioned sealing ring 3 is used for sealing between the housing 2 and the sleeve 9 to prevent leakage of the cooling medium.

[0051] It should be noted that the above-mentioned flow channel positioning member 1, housing 2, secondary positioning member 7, outer nut sleeve 8, sleeve 9, top cover 10, sealing ring 11, nut retaining spring 12, and claw 13 are all prior arts and will not be elaborated in this article.

[0052] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0053] The above is a detailed introduction to the liquid-cooled connector provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A liquid cooling connector, characterized in that: The invention comprises a flow channel positioning member (1), a shell (2) sleeved on the outside of the flow channel positioning member (1), and a sealing ring (3) for sealing the flow channel positioning member (1) and the shell (2); the flow channel positioning member (1) and the shell (2) are coaxially arranged, and the flow channel positioning member (1) and the shell (2) are interference fit or transition fit; the flow channel positioning member (1) is provided with a cooling chamber and a heat dissipation flow channel (4) which are connected to each other, the flow channel positioning member (1) is provided with slots on its inner part and radial outer surface which are used as the heat dissipation flow channel (4), and the cooling chamber is connected to a liquid guide terminal; The flow channel positioning member (1) comprises a body and a heat dissipation flow channel (4) arranged on the periphery of the body, the top surface of the body is encapsulated with a package top plate, and the bottom surface of the body is encapsulated with a package bottom plate; the body is provided with an inner inlet and an inner outlet, the two ends of the heat dissipation flow channel (4) are respectively connected to the inner inlet and the inner outlet, the package bottom plate is provided with the liquid guide terminal, the cooling chamber is provided with an inner inlet flow channel and an inner outlet flow channel connected to the liquid guide terminal, and the body is sealed with the package top plate and the package bottom plate to form the cooling chamber; The liquid conducting terminal comprises a cooling medium inlet pipe (5) and a cooling medium outlet pipe (6), wherein the cooling medium inlet pipe (5) and the cooling medium outlet pipe (6) are both installed on the flow channel positioning member (1) and are in communication with the cooling chamber; The cooling medium enters the interior of the flow channel positioning member (1) through the cooling medium inlet pipe (5), passes through the flow channel inside the cooling chamber, reaches the heat dissipation flow channel (4) from the inner outlet, enters the inner inlet, passes through the flow channel inside the cooling chamber, and is discharged from the cooling medium outlet pipe (6); while the cooling medium in the heat dissipation flow channel (4) absorbs the heat of the flow channel positioning member (1), it directly contacts the outer shell (2), transfers part of the heat to the outer shell (2), diffuses into the environment through the outer shell (2), and the remaining heat is directly taken away by the cooling medium and flows out from the cooling medium outlet pipe (6), thereby achieving a cooling effect.

2. The liquid-cooled connector according to claim 1, characterized in that: The heat dissipation flow channel (4) is composed of a plurality of flow channel columns that are staggered and distributed up and down.

3. The liquid-cooled connector according to claim 2, characterized in that: The flow channel columns are distributed on the outer peripheral surface of the body at equal intervals.

4. The liquid-cooled connector according to claim 3, characterized in that: The heat dissipation channel (4) has a serpentine structure.

5. The liquid-cooled connector according to claim 3, characterized in that: The flow channel partition is welded to the body or is an integrally formed structure.

6. The liquid-cooled connector according to any one of claims 1 to 5, characterized in that: It also includes a secondary positioning member (7) coaxially arranged on the inner end surface of the flow channel positioning member (1), an outer nut sleeve (8) and a sleeve (9) mounted on the outside of the shell (2) and adapted to be matched with an external connector, a top cover (10) assembled on the end of the outer nut sleeve (8), a sealing ring (3) for sealing the flow channel positioning member (1) and the shell (2), a nut retaining spring (12) for preventing the outer nut sleeve (8) from moving, a secondary positioning member retaining spring (14) for matching and limiting the position with the shell (2), a claw (13) threadedly connected to the sleeve (9), and an inner nut sleeve (11) for wrapping a wire.

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