Inspection tooling

Abstract

This utility model discloses a testing fixture, which includes a first sealing element, a second sealing element, and a testing element. The first sealing element is disposed on the liquid channel to seal the liquid channel. The second sealing element includes a sealing portion and a locking portion. The sealing portion is disposed at the opening of the accommodating space, and the locking portion is disposed on the sealing portion and used to lock the sealing portion onto the liquid cooling cabinet to seal the accommodating space. The first sealing element, the second sealing element, and the housing surround to form a sealed space. A pressure port is formed on the first sealing element, and the pressure port penetrates the first sealing element. The testing element is disposed on the pressure port and used to detect the air pressure within the sealed space. This utility model has good sealing performance and a short testing time.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled cabinet sealing technology, specifically to a testing fixture for detecting the airtightness of liquid-cooled cabinets. Background Technology

[0002] Existing liquid-cooled cabinets typically include a containment space for the cooling medium. To ensure lossless thermal circulation of the cooling medium—that is, heat exchange at the equipment being cooled to remove heat and release heat at the temperature control equipment—and thus cool the equipment and prevent operational problems caused by overheating, the cooling medium needs to circulate between the containment space and the temperature control equipment. This requires the containment space to maintain internal airtightness during operation to prevent leakage of the cooling medium and the ingress of external gases. Therefore, liquid-cooled cabinets generally require an airtightness test before formal use.

[0003] In related technologies, methods such as gas tracer analysis, smoke detection, water immersion, and infrared thermal imaging are commonly used to test the airtightness of liquid-cooled server racks. Airtightness testing typically requires sealing the internal space of the rack; however, current sealing structures are complex and have poor airtightness. Achieving better airtightness necessitates complex and slow airtightening processes, leading to prolonged preparation time and consequently longer testing times, making large-scale testing impractical. Furthermore, these methods suffer from complex testing procedures and high costs. Utility Model Content

[0004] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides a testing fixture with the advantages of easy installation and short testing time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A testing fixture is used to test the airtightness of a liquid-cooled cabinet. The liquid-cooled cabinet includes a shell and a receiving space formed inside the shell. An opening is formed on the top side of the receiving space. A liquid channel is provided on the shell. The receiving space communicates with the outside of the liquid-cooled cabinet through the liquid channel. The testing fixture includes a first seal, a second seal, and a testing component. The first seal is disposed on the liquid channel and is used to seal the liquid channel. The second seal includes a sealing part and a locking part. The sealing part is disposed at the opening of the receiving space. The locking part is disposed on the sealing part and is used to lock the sealing part onto the liquid-cooled cabinet to seal the receiving space. The first seal, the second seal, and the shell surround to form a sealed space. A pressure port is formed on the first seal and penetrates through the first seal. The testing component is disposed on the pressure port and is used to detect the air pressure inside the sealed space. The testing fixture is used to test the airtightness of the liquid-cooled cabinet. The first and second sealing components isolate the internal space of the liquid-cooled cabinet from the external space to avoid unnecessary errors during the airtightness test. The testing component is used to detect the air pressure in the internal space. The airtightness of the internal space is determined based on the change in air pressure after the test begins.

[0007] Optionally, the sealing part includes a sealing gasket and a sealing cover. The sealing cover includes a top plate and multiple side plates protruding from the edge of the top plate. The side plates and the top plate form a fixed space. The sealing gasket is disposed within the fixed space and fits against the top plate. The sealing cover is used to cover the housing and to make the sealing gasket abut against the top of the housing. A locking part is disposed on the sealing cover and can lock the sealing cover and the housing, so that the sealing gasket is pressed tightly against the top of the housing for sealing. The sealing gasket is disposed on the top of the housing, and the sealing cover covers the sealing gasket and the upper part of the housing. The locking part applies a force toward the sealing gasket to the sealing cover, so that the sealing gasket is tightly attached to the opening at the top of the housing, thereby achieving a top seal of the receiving space by the sealing gasket. The sealing cover improves the sealing effect of the sealing gasket on the receiving space.

[0008] Optionally, the locking part includes multiple fixing members, each including a fixing unit, a driving unit, a pressing unit, and a transmission unit. The fixing members are fixedly connected to the sealing cover. One end of the driving unit is hinged to the fixing member, and the first end of the pressing unit is hinged to the fixing unit. The driving unit and the pressing unit are connected via the transmission unit, which is hinged to both the driving unit and the pressing unit. The driving unit has a locked state and an unlocked state. When the driving unit is in the locked state, it presses the second end of the pressing unit against the housing via the transmission unit. When the driving unit is in the unlocked state, the second end of the pressing unit disengages from the housing. By fixing the fixing member to a protruding platform outside the housing, a force-applying fulcrum is provided for the fixing member, allowing it to exert a force towards the sealing gasket on the sealing cover without displacement of the main body. The clamping unit is used to abut against the platform of the housing, and the drive unit is used for operation by the user during installation. The drive unit is hinged to both the fixing unit and the clamping unit, and the clamping unit is hinged to both the fixing unit and the drive unit. The rotation axis hinged between the drive unit and the fixing unit is used as the first rotation axis, the rotation axis hinged between the clamping unit and the fixing unit is used as the second rotation axis, and the rotation axis hinged between the clamping unit and the drive unit is used as the third rotation axis. When the fixing member changes from the first state to the second state, the drive unit rotates around the first rotation axis, causing the third rotation axis to move closer to the housing. Since the clamping unit is a rigid object, when the second rotation axis cannot move but the third rotation axis moves, the clamping unit rotates along the third rotation axis, rotating from a position away from the platform to a position close to the platform, thus clamping the platform. This configuration simplifies the time required for sealing the accommodating space, shortens preparation time, improves testing efficiency, and reduces operational difficulty.

[0009] Optionally, a handle is provided at the second end of the drive unit. The handle is used to reduce the difficulty of operating the fixing component and has the effect of saving effort.

[0010] Optionally, the locking part includes multiple fixing members, which are evenly distributed on the sides of the sealing cover and are fixedly connected to it. The fixing members are symmetrically arranged along the width direction of the sealing cover, ensuring that fixing members are present on both sides of the sealing cover in the width direction. This results in uniform force on both ends of the sealing part in the length direction, ensuring consistent sealing performance and preventing the sealing part from tilting due to uneven force distribution, which could reduce airtightness and affect test results.

[0011] Optionally, the locking part includes a plurality of fixing members, which are symmetrically arranged along the width direction of the sealing cover. The even distribution of the fixing members on the sides of the sealing cover can improve the fixing effect of the sealing cover on the sealing gasket, making the sealing gasket more evenly stressed and improving the sealing performance of the sealing gasket on the accommodating space.

[0012] Optionally, the liquid-cooled cabinet is provided with multiple liquid channels, and the testing fixture includes multiple first sealing elements corresponding one-to-one with each of the liquid channels. The first sealing elements cooperate with the liquid channels to seal the liquid channels that communicate with the outside environment, ensuring that the liquid channels do not interfere with the testing of the sealing performance.

[0013] Optionally, one of the first seals is provided with a gas passage extending through the pressurization port, the gas passage connecting the receiving space and the detection element. The gas passage on the first seal has the advantages of facilitating measurement, minimizing impact on sealing performance, and simplifying operation.

[0014] Optionally, the detection element includes a valve and a pressure gauge. The valve is used to inject high-pressure gas into the containment space, and the sensing element of the pressure gauge extends into the containment space and is capable of detecting the gas pressure in the containment space.

[0015] Optionally, a filling head is also included. The housing has a through-hole that penetrates the housing and connects the receiving space to the outside of the liquid-cooled cabinet. The filling head is disposed within the through-hole and seals the through-hole, with each filling head corresponding to a different through-hole. The filling head prevents other through-holes in the liquid-cooled cabinet from affecting the sealing test.

[0016] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a top view of the liquid-cooled cabinet according to the present invention.

[0019] Figure 2 This is a rear view structural diagram of a liquid-cooled cabinet according to the present invention.

[0020] Figure 3 This is a right-side structural schematic diagram of a liquid-cooled cabinet according to the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the second sealing element of a liquid-cooled cabinet according to the present invention.

[0022] Figure 5 This is a structural schematic diagram of a liquid-cooled cabinet according to the present invention.

[0023] Figure 6 This is a schematic diagram of the locking part structure of a liquid-cooled cabinet according to the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. First seal, 10. Opening, 11. Gas passage, 20. Sealing part, 200. Sealing gasket, 201. Sealing cover, 21. Locking part, 210. Fixing part, 2102. Drive unit, 2101. Pressing unit, 2100. Fixing unit, 2103. Transmission unit, 3. Detection element, 4. Housing, 40. Liquid passage, 41. Through hole, 5. Receiving space, 6. Filling head. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0026] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0027] like Figures 1-3As shown, a testing fixture is used to test the airtightness of a liquid-cooled cabinet. The liquid-cooled cabinet includes a housing 4 and a receiving space 5 formed inside the housing 4. An opening 10 is formed on the top side of the receiving space 5. A liquid channel 40 is provided on the housing 4, and the receiving space 5 communicates with the outside of the liquid-cooled cabinet through the liquid channel 40. The testing fixture includes a first sealing element 1, a second sealing element, and a testing element 3. The first sealing element 1 is disposed on the liquid channel 40 and is used to seal the liquid channel 40. The second sealing element includes a sealing part 20 and a locking part 21. The sealing part 20 is disposed on the opening 10 of the receiving space 5, and the locking part 21 is disposed on the sealing part 20 and is used to lock the sealing part 20 on the liquid-cooled cabinet to seal the receiving space 5. The first sealing element 1, the second sealing element, and the housing 4 surround to form a sealed space. A pressure port is formed on the first sealing element 1, and the pressure port penetrates the first sealing element 1. The testing element 3 is disposed on the pressure port and is used to detect the air pressure in the sealed space. The testing fixture is used to test the airtightness of the liquid-cooled cabinet. The first sealing element 1 and the second sealing element isolate the internal storage space 5 of the liquid-cooled cabinet from the external space of the liquid-cooled cabinet to avoid unnecessary errors during the airtightness test. The testing element 3 is used to test the air pressure in the storage space 5. The airtightness of the storage space 5 is judged based on the change in air pressure in the storage space 5 after the test starts.

[0028] like Figures 4-6 As shown, the sealing part 20 includes a sealing gasket 200 and a sealing cover 201. The sealing cover 201 includes a top plate and a plurality of side plates protruding from the edge of the top plate. The side plates and the top plate form a fixed space. The sealing gasket 200 is disposed in the fixed space and fits against the top plate. The sealing cover 201 is used to cover the housing 4 and to make the sealing gasket 200 abut against the top of the housing 4. The locking part 21 is disposed on the sealing cover 201 and can lock the sealing cover 201 and the housing 4 so that the sealing gasket 200 is pressed tightly against the top of the housing 4 for sealing. A sealing gasket 200 is disposed on the top of the housing 4, and a sealing cover 201 is disposed on the sealing gasket 200 and the upper part of the housing 4. A force is applied to the sealing cover 201 towards the sealing gasket 200 through the locking part 21, so that the sealing gasket 200 is tightly attached to the opening 10 at the top of the housing 4, thereby achieving a top seal of the receiving space 5 by the sealing gasket 200. The sealing effect of the sealing gasket 200 on the receiving space 5 is improved by the sealing cover 201.

[0029] The locking part 21 includes a fixing member 210. A protruding platform is formed on the outside of the housing 4. One end of the fixing member 210 is fixed to the sealing cover 201, and the other end abuts against the platform. The fixing member 210 can switch between a first state and a second state. When the fixing member 210 is in the first state, the end of the fixing member 210 not fixed to the sealing cover 201 is away from the platform. When the fixing member 210 is in the second state, the end of the fixing member 210 not fixed to the sealing cover 201 is pressed against the platform. By fixing the fixing member 210 to the protruding platform outside the housing 4, a force fulcrum is provided for the fixing member 210, so that the fixing member 210 can exert a force on the sealing cover 201 toward the sealing gasket 200 without displacement of the body.

[0030] The locking part 21 includes multiple fixing members 210. Each fixing member 210 includes a fixing unit 2100, a driving unit 2102, a pressing unit 2101, and a transmission unit 2103. The fixing member 210 is fixedly connected to the sealing cover 201. One end of the driving unit 2102 is hinged to the fixing member 210, and the first end of the pressing unit 2101 is hinged to the fixing unit 2100. The driving unit 2102 and the pressing unit 2101 are connected by the transmission unit 2103. The transmission unit 2103 is connected to the drive unit 2102 and the clamping unit 2101 respectively. The drive unit 2102 has a locked state and an unlocked state. When the drive unit 2102 is in the locked state, it clamps the second end of the clamping unit 2101 to the housing through the transmission unit 2103. When the drive unit 2102 is in the unlocked state, the second end of the clamping unit 2101 is disengaged from the housing. By fixing the fixing member 210 to the protruding platform outside the housing 4, a force fulcrum is provided for the fixing member 210, so that the fixing member 210 can exert a force on the sealing cover 201 toward the sealing gasket 200 without displacement of the body. The clamping unit 2101 is used to abut against the platform of the housing 4, and the driving unit 2102 is used for operation by the user during installation. The driving unit 2102 is hinged to both the fixing unit 2100 and the clamping unit 2101, and the clamping unit 2101 is hinged to both the fixing unit 2100 and the driving unit 2102. The rotation axis of the driving unit 2102 hinged to the fixing unit 2100 is used as the first rotation axis, and the rotation axis of the clamping unit 2101 hinged to the fixing unit 2101 is used as the second rotation axis. The rotating shaft hinged to the drive unit 2102 serves as the third rotating shaft. When the fixing member 210 changes from the first state to the second state, the drive unit 2102 rotates around the first rotating shaft, causing the third rotating shaft to move closer to the housing 4. Since the pressing unit 2101 is a rigid object, when the second rotating shaft cannot move but the third rotating shaft moves, the pressing unit 2101 rotates along the third rotating shaft, rotating from a position away from the platform to a position close to the platform, and pressing the platform. This configuration simplifies the time required to seal the accommodating space 5, shortens preparation time, improves testing efficiency, and reduces operational difficulty.

[0031] A handle is provided at the second end of the drive unit 2102. The handle is used to reduce the difficulty of operating the fixing component 210 and has the effect of saving effort.

[0032] The locking part 21 includes a plurality of fixing members 210, which are evenly distributed on the side of the sealing cover 201 and are fixedly connected to it. The fixing members 210 are symmetrically arranged along the width direction of the sealing cover 201, ensuring that there are fixing members 210 on both sides of the sealing cover 201 in the width direction. This makes the sealing part 20 subjected to uniform force at both ends in the length direction, resulting in the same sealing condition. This avoids the sealing part 20 tilting due to uneven force on the left and right sides, which would reduce airtightness and affect the test results.

[0033] The locking part 21 includes a plurality of fixing members 210, which are symmetrically arranged along the width direction of the sealing cover 201. The even distribution of the fixing members 210 on the side of the sealing cover 201 can improve the fixing effect of the sealing cover 201 on the sealing gasket 200, make the sealing gasket 200 more evenly stressed, and improve the sealing performance of the sealing gasket 200 on the accommodating space 5.

[0034] The liquid cooling cabinet is provided with multiple liquid channels 40, and the testing fixture includes multiple first sealing elements 1 that correspond one-to-one with each of the liquid channels 40. The first sealing elements 1 cooperate with the liquid channels 40 to seal the liquid channels 40 that connect the accommodating space 5 to the outside, ensuring that the liquid channels 40 do not interfere with the testing of the sealing performance.

[0035] One of the first sealing elements 1 is provided with a gas channel 11 that passes through the pressurization port, and the gas channel 11 connects the accommodating space 5 and the detection element 3. The gas channel 11 provided on the first sealing element 1 has the advantages of being easy to measure, having little impact on the sealing performance, and being easy to operate.

[0036] The detection element 3 includes a valve and a pressure gauge. The valve is used to inject high-pressure gas into the containment space 5, and the sensing element of the pressure gauge extends into the containment space 5 and is capable of detecting the gas pressure in the containment space 5.

[0037] It also includes a filling head 6. The housing 4 has a through hole 41 that penetrates the housing 4 and connects the receiving space 5 to the outside of the liquid-cooled cabinet. The filling head 6 is disposed in the through hole 41 and seals the through hole 41, and the filling head 6 corresponds one-to-one with the through hole 41. The filling head 6 can prevent the other through holes 41 of the liquid-cooled cabinet from affecting the sealing test.

[0038] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A detection tool for detecting airtightness of a liquid cooling cabinet including a housing and a containing space formed inside the housing, a top side of the containing space forming an opening, the housing being provided with a liquid passage, the containing space communicating with the outside of the liquid cooling cabinet through the liquid passage, characterized in that, The testing fixture includes a first seal (1), a second seal, and a testing component (3). The first seal (1) is disposed on the liquid channel (40) and is used to seal the liquid channel (40). The second seal includes a sealing part (20) and a locking part (21). The sealing part (20) is disposed at the opening (10) of the accommodating space (5). The locking part (21) is disposed on the sealing part (20) and is used to lock the sealing part (20) on the liquid cooling cabinet to seal the accommodating space (5). The first seal (1), the second seal, and the housing (4) surround and form a sealed space. A pressure port is formed on the first seal (1) and the pressure port penetrates the first seal (1). The detection element (3) is placed on the pressurization port and is used to detect the air pressure in the sealed space.

2. The inspection tool of claim 1, wherein The sealing part (20) includes a sealing gasket (200) and a sealing cover (201). The sealing cover (201) includes a top plate and a plurality of side plates protruding from the edge of the top plate. The side plates and the top plate form a fixed space. The sealing gasket (200) is disposed in the fixed space and fits against the top plate. The sealing cover (201) is used to cover the housing (4) and make the sealing gasket (200) abut against the top of the housing (4). The locking part is disposed on the sealing cover (201) and can lock the sealing cover (201) and the housing (4) so ​​that the sealing gasket (200) is pressed and sealed against the top of the housing (4).

3. The inspection tool of claim 2, wherein, The locking part includes multiple fixing parts (210). Each fixing part (210) includes a fixing unit (2100), a driving unit (2102), a pressing unit (2101), and a transmission unit (2103). The fixing part (210) is fixedly connected to the sealing cover (201). One end of the driving unit (2102) is hinged to the fixing part (210). The first end of the pressing unit (2101) is hinged to the fixing unit (2100). The driving unit (2102) and the pressing unit (2101) are connected through the transmission unit (2103). The transmission unit (2103) is hinged to the driving unit (2102) and the pressing unit (2101) respectively. The drive unit (2102) includes a locked state and an unlocked state. When the drive unit (2102) is in the locked state, the drive unit (2102) presses the second end of the clamping unit (2101) against the housing (4) through the transmission unit (2103). When the drive unit (2102) is in the unlocked state, the second end of the clamping unit (2101) disengages from the housing (4).

4. The inspection tool of claim 3, wherein, A handle is provided at the second end of the drive unit (2102).

5. The inspection tool of claim 3, wherein, The locking part includes a plurality of fixing members (210), and the fixing members (210) are evenly distributed on the side of the sealing cover (201) and are fixedly connected to the sealing cover (201).

6. The inspection tool of claim 3, wherein, The locking part includes a plurality of the fixing members (210), which are symmetrically arranged along the width direction of the sealing cover (201).

7. The testing fixture according to claim 1, characterized in that, The liquid cooling cabinet is provided with multiple liquid channels (40), and the testing fixture includes multiple first seals (1) that correspond one-to-one with the liquid channels (40).

8. The inspection tool of claim 7, wherein, One of the first sealing elements (1) is provided with a gas channel (11) that passes through the pressurization port, and the gas channel (11) connects the accommodating space (5) and the detection element (3).

9. The inspection tool of claim 8, wherein, The detection element (3) includes a valve and a pressure gauge. The valve is used to inject high-pressure gas into the containment space (5). The sensing element of the pressure gauge extends into the containment space (5) and is capable of detecting the gas pressure in the containment space (5).

10. The inspection tool of any of claims 1-9, wherein, It also includes a filling head (6), and the housing (4) is provided with a through hole (41), the through hole (41) penetrates the housing (4) and connects the accommodating space (5) and the outside of the liquid cooling cabinet; The filling head (6) is disposed in the through hole (41) and seals the through hole (41), and the filling head (6) and the through hole (41) correspond one-to-one.

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