Liquid cooling plate airtight detection end structure

Abstract

The utility model discloses a kind of liquid cooling plate airtight detection end head structure, install on the external joint of liquid cooling plate, including plug main body and limiting component, plug main body is slidably inserted in external joint, and the outside wall of plug main body is opened with mounting groove along its circumference, sealing ring is arranged in mounting groove, sealing ring and the inside wall of external joint abut, limiting component is set to the outside of external joint, including inner shaft sleeve, outer shaft sleeve and the first limiting surface located in the outside of external joint and downwards, inner shaft sleeve is at least provided with two around external joint, outer shaft sleeve is slidably sleeved in each inner shaft sleeve, inner shaft sleeve inside has upwards first locating surface and downwards second locating surface, plug main body outside has upwards second limiting surface. By the above setting, the inside of liquid cooling plate can be sealed, and when sealing ring appears abrasion after long-term use, only needs to replace sealing ring, reduce use cost.

Description

Technical Field

[0001] This utility model belongs to the field of airtightness testing technology, specifically relating to a liquid-cooled plate airtightness testing end structure. Background Technology

[0002] Liquid cooling plates are components used for battery thermal management in new energy vehicles. A water pump drives coolant to circulate through channels inside the plate, carrying away heat generated by the battery via heat conduction and transferring it to the radiator for dissipation into the external environment. To prevent coolant leakage that could degrade battery performance or cause safety incidents, the manufactured liquid cooling plates must undergo airtightness testing.

[0003] The direct pressure testing method is one type of airtightness testing method. This method first leaves one port open for injecting gas at a certain pressure into the liquid cooling plate, while sealing the other ports. The airtightness is evaluated by observing the pressure changes inside the liquid cooling plate. Traditionally, liquid cooling plates are sealed by heat-melting a rubber tube to create a plug, which is then inserted into the external connector of the liquid cooling plate. This method suffers significant wear during insertion and removal, resulting in poor sealing after wear. Because it is a single-piece structure, it often requires complete replacement, making this method of sealing liquid cooling plates costly. Utility Model Content

[0004] The present invention aims to provide a liquid-cooled plate airtightness testing end structure to reduce the usage cost when sealing liquid-cooled plates.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A liquid-cooled plate airtightness testing end structure is installed on an external connector of the liquid-cooled plate, including a plug body and a limiting component. The plug body is slidably inserted into the external connector, and an installation groove is formed on the outer side wall of the plug body along its circumference. A sealing ring is provided in the installation groove, and the sealing ring abuts against the inner side wall of the external connector. The limiting component is located on the outside of the external connector and includes an inner bushing, an outer bushing, and a first limiting surface located on the outside of the external connector and facing downward. At least two inner bushings are provided around the external connector, and the outer bushing is slidably sleeved on each of the inner bushings. The inner side of the inner bushing has an upward first positioning surface and a downward second positioning surface. The outer side of the plug body has an upward second limiting surface. The first positioning surface is located at the bottom of the first limiting surface, and the second positioning surface is located at the top of the second limiting surface.

[0007] The principle and effects of this technical solution:

[0008] When testing the airtightness of the liquid cooling plate, first insert the plug body into the external connector. Then, wrap the inner bushings around the outside of the external connector in sequence, connecting two adjacent inner bushings end to end. Next, fit the outer bushings onto each inner bushing, so that the first positioning surface is at the bottom of the first limiting surface and the second positioning surface is at the top of the second limiting surface. Then, fill the liquid cooling plate with gas. At this time, because the sealing ring is pressed against the inner wall of the external connector, the gas cannot leak from the gap between the plug body and the external connector. When the plug body tends to move upward due to the gas, the second positioning surface first abuts against the second limiting surface, thereby driving each inner bushing to move upward. When the inner bushings tend to move upward, the first positioning surface abuts against the first limiting surface, and the external connector prevents the inner bushings from moving upward, thus preventing the plug body from moving upward.

[0009] With the above configuration, the interior of the liquid cooling plate can be sealed by using the sealing ring to press against the inner wall of the external connector. When the sealing ring wears out after long-term use, it only needs to be replaced, reducing the cost of use. By using the limiting component, the plug body can be prevented from falling off during the detection process, improving the stability of the device during use.

[0010] This invention also includes a slot, which is annular and formed on the radially outer sidewall of the external connector. A first limiting surface is located at the inner top of the slot. A locking block, capable of engaging with the slot, is fixedly disposed at the bottom of the inner sidewall of the inner bushing. The first positioning surface is located at the top of the locking block. A limiting protrusion is fixedly disposed on the outer sidewall of the plug body above the mounting groove. A second limiting surface is located at the top of the limiting protrusion. A semi-annular inner edge is fixedly disposed at the top of the radially inner sidewall of the inner bushing, and the second positioning surface is located at the bottom of the inner edge. Through the above arrangement, the purpose of preventing the plug body from detaching from the external connector can be achieved using the limiting component.

[0011] In this invention, the radially outer side wall of the inner bushing is fixedly provided with an outer edge for supporting the outer bushing. This arrangement prevents the outer bushing from moving below the inner bushing, ensuring the inner bushing fits snugly against the external connector, thereby ensuring the device's limiting effect on the plug body.

[0012] In this invention, the cross-section of the inner bushing is fan-shaped.

[0013] In this invention, the inner bushing has two flat end faces. One end face has a limiting groove on its outer side wall, and the other end face has a limiting strip that mates with the limiting groove. By engaging the limiting strip on one inner bushing within the limiting groove of an adjacent inner bushing, multiple inner bushings can be quickly assembled into a tubular structure, facilitating the fitting of the outer bushing.

[0014] In this invention, two sets of mounting grooves and sealing rings are provided at intervals along the axial direction of the plug body on the outer side wall of the plug body. This arrangement improves the sealing effect of the device.

[0015] In this invention, the plug body has a vent channel along its axial direction, and the top of the vent channel has an internal threaded interface. This design allows the device to be easily connected to an inflation mechanism when used as an inflation structure. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of an embodiment of the present invention;

[0017] Figure 2 This is an exploded view of the components in Embodiment 1 of this utility model;

[0018] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model;

[0019] Figure 4 This is a cross-sectional view of Embodiment 2 of the present utility model. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0022] The reference numerals in the accompanying drawings of the instruction manual include: 10, external connector; 11, slot; 20, plug body; 21, mounting groove; 22, limiting protrusion; 30, sealing ring; 40, outer bushing; 50, inner bushing; 51, locking block; 52, inner edge; 53, outer edge; 54, limiting strip; 55, limiting groove; 60, vent; 61, internal thread interface.

[0023] First embodiment:

[0024] As attached Figure 1-3As shown, this utility model discloses a liquid-cooled plate airtightness testing end structure, which is installed on the external connector 10 of the liquid-cooled plate. It includes a plug body 20 and a limiting component. The plug body 20 is slidably inserted into the external connector 10, and the outer side wall of the plug body 20 is provided with an installation groove 21 along its circumference. A sealing ring 30 is provided in the installation groove 21. The sealing ring 30 abuts against the inner side wall of the external connector 10. The limiting component is provided on the outside of the external connector 10 and includes an inner bushing 50, an outer bushing 40, and a first limiting surface located on the outside of the external connector 10 and facing downward. At least two inner bushings 50 are provided around the external connector 10. The outer bushing 40 is slidably sleeved on each of the inner bushings 50. The inner side of the inner bushing 50 has an upward first positioning surface and a downward second positioning surface. The outer side of the plug body 20 has an upward second limiting surface. The first positioning surface is located at the bottom of the first limiting surface, and the second positioning surface is located at the top of the second limiting surface.

[0025] In this embodiment, a slot 11 is also included. The slot 11 is annular and is formed on the radial outer side wall of the external connector 10. The first limiting surface is located at the inner top of the slot 11. A locking block 51 capable of being locked in the slot 11 is fixedly provided at the bottom of the inner side wall of the inner bushing 50. The first positioning surface is located at the top of the locking block 51. A limiting protrusion 22 is fixedly provided on the outer side wall of the plug body 20 above the mounting groove 21. The second limiting surface is located at the top of the limiting protrusion 22. A semi-annular inner edge 52 is fixedly provided at the top of the radial inner side wall of the inner bushing 50. The second positioning surface is located at the bottom of the inner edge 52.

[0026] In this embodiment, the radial outer side wall of the inner bushing 50 is fixedly provided with an outer edge 53 for supporting the outer bushing 40.

[0027] In this embodiment, the cross-section of the inner bushing 50 is fan-shaped.

[0028] In this embodiment, the inner bushing 50 has two flat end faces, one of which has a limiting groove 55 on its outer side wall, and the other end face is fixedly provided with a limiting strip 54 that cooperates with the limiting groove 55.

[0029] In this embodiment, the mounting groove 21 and the sealing ring 30 are provided in two sets along the axial direction of the plug body 20 on the outer side wall of the plug body 20.

[0030] The specific implementation process is as follows:

[0031] When the airtightness of the liquid cooling plate needs to be tested, the plug body 20 is first inserted into the external connector 10. Then, inner bushings 50 are sequentially wrapped around the outside of the external connector 10, and two adjacent inner bushings 50 are connected end to end. Then, the outer bushing 40 is fitted onto each inner bushing 50, so that the first positioning surface is at the bottom of the first limiting surface and the second positioning surface is at the top of the second limiting surface. Then, gas is filled into the liquid cooling plate. At this time, because the sealing ring 30 is pressed against the inner side wall of the external connector 10, the gas cannot leak from the gap between the plug body 20 and the external connector 10. When the plug body 20 tends to move upward due to the gas, the second positioning surface first abuts against the second limiting surface, thereby driving each inner bushing 50 to move upward. When the inner bushing 50 tends to move upward, the first positioning surface abuts against the first limiting surface, and the external connector 10 prevents the inner bushing 50 from continuing to move upward, thereby preventing the plug body 20 from moving upward.

[0032] Second embodiment:

[0033] As attached Figure 4 As shown, the difference between this embodiment and the first embodiment is that: in this embodiment, the plug body 20 is provided with a vent 60 along its axial direction, and the top of the vent 60 is provided with an internal threaded interface 61.

[0034] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0035] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A liquid-cooled plate airtightness testing end structure, installed on an external connector of a liquid-cooled plate, characterized in that, include: The plug body is slidably inserted into the external connector, and the outer side wall of the plug body is provided with an installation groove along its circumference. A sealing ring is provided in the installation groove, and the sealing ring abuts against the inner side wall of the external connector. A limiting component is provided on the outside of the external connector, including an inner bushing, an outer bushing, and a first limiting surface located on the outside of the external connector and facing downward. At least two inner bushings are provided around the external connector, and the outer bushing is slidably sleeved on each of the inner bushings. The inner side of the inner bushing has an upward first positioning surface and a downward second positioning surface. The outer side of the plug body has an upward second limiting surface. The first positioning surface is located at the bottom of the first limiting surface, and the second positioning surface is located at the top of the second limiting surface.

2. The liquid-cooled plate airtightness testing end structure as described in claim 1, characterized in that, Also includes: The slot is annular and is formed on the radial outer side wall of the external connector. The first limiting surface is located at the inner top of the slot. A locking block that can be locked in the slot is fixedly provided at the bottom of the inner side wall of the inner bushing. The first positioning surface is located at the top of the locking block. A limiting protrusion is fixedly provided on the outer side wall of the plug body above the mounting groove. The second limiting surface is located at the top of the limiting protrusion. A semi-annular inner edge is fixedly provided at the top of the radial inner side wall of the inner bushing. The second positioning surface is located at the bottom of the inner edge.

3. The liquid-cooled plate airtightness testing end structure as described in claim 2, characterized in that: The radial outer side wall of the inner bushing is fixedly provided with an outer edge for supporting the outer bushing.

4. The liquid-cooled plate airtightness testing end structure as described in claim 3, characterized in that: The cross-section of the inner bushing is fan-shaped.

5. The liquid-cooled plate airtightness testing end structure as described in claim 4, characterized in that: The inner bushing has two flat end faces. One end face has a limit groove on its outer side wall, and the other end face has a limit strip that cooperates with the limit groove.

6. The liquid-cooled plate airtightness testing end structure as described in any one of claims 1-5, characterized in that: The mounting groove and sealing ring are provided in two sets at intervals along the axis of the plug body on the outer side wall of the plug body.

7. The liquid-cooled plate airtightness testing end structure as described in claim 6, characterized in that: The plug body has a vent along its axial direction, and the top of the vent has an internal threaded interface.

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