Sealable signal transmission structure for helium detection vacuum box

Abstract

The utility model relates to the technical field of helium leakage detection equipment, in particular to a sealable signal transmission structure for a helium detection vacuum box, which comprises a sealing seat hermetically arranged on the vacuum box body, a through hole communicated with the interior of the mounting groove is formed in the end, arranged on the outer side of the vacuum box body, of the sealing seat, and a sealing assembly used for sealing and blocking the through hole from being communicated with the interior of the vacuum box body is arranged in the mounting groove. A pin combination penetrating through the two sides of the sealing assembly is arranged on the sealing assembly in a sealed mode. One end of the pin combination is arranged in the vacuum box body, the other end of the pin combination penetrates through the through hole to be arranged on the outer side of the vacuum box body, the pin combination is arranged on the sealing seat, the pin combination can be electrically communicated with the wires, the wires connected with the two ends of the pin combination can be electrically communicated, vacuum sealing is guaranteed, and meanwhile access of electric signals is achieved; therefore, the requirement of electric signal detection or judgment in the helium detection environment is met.

Description

Technical Field

[0001] The utility model relates to the technical field of helium leakage detection equipment, in particular to a sealable signal transmission structure for a helium detection vacuum box. Background Art

[0002] In the new energy battery production industry, the liquid cooling plate is one of the key components for battery heat dissipation. The liquid cooling plate mainly removes the heat generated by the battery through the water cooling system. Since the working medium of the liquid cooling plate is water, and the battery is very sensitive to the presence of water, the liquid cooling plate is required to be reliably sealed and leak-free. Therefore, the liquid cooling plate must be strictly leak-tested before leaving the factory; when testing the air tightness of the liquid cooling plate, vacuum helium detection technology is generally used for detection. Vacuum helium detection technology is a technology that uses ammonia as a leak-indicating gas and uses molecular pumps, amplifiers, etc. Helium is filled into the liquid cooling plate and sealed, and then the liquid cooling plate is placed in a vacuum box to evacuate the vacuum, and then the helium leak detector can quickly and accurately determine the leakage of the liquid cooling plate with high precision.

[0003] During vacuum helium inspection, since helium inspection requires a vacuum environment, the inspection environment needs to be in a closed state. However, the detection devices installed inside the helium inspection vacuum box need to transmit electrical signals to the outside world through access wires. However, it is difficult to achieve complete sealing at the position where the wires pass through the vacuum box, which makes it easy to destroy the vacuum environment and affect the helium inspection results. Utility Model Content

[0004] The utility model aims to provide a sealable signal transmission structure for a helium detection vacuum box, so as to solve the problem in the prior art that the position where the signal transmission wire passes through the box body is not easy to be completely sealed, which easily destroys the vacuum environment and affects the helium detection result.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A sealable signal transmission structure for a helium detection vacuum box comprises a sealing seat sealably arranged on a vacuum box body, wherein one end of the sealing seat disposed inside the vacuum box body is provided with a mounting groove, and one end of the sealing seat disposed outside the vacuum box body is provided with a through hole connected to the inside of the mounting groove, wherein a sealing component for sealing and blocking the through hole from being connected to the inside of the vacuum box body is arranged in the mounting groove; a pin assembly is sealably arranged on the sealing component and passes through both sides of the pin assembly; one end of the pin assembly is disposed inside the vacuum box body, and the other end of the pin assembly passes through the through hole and is disposed outside the vacuum box body.

[0007] A further technical solution is that the sealing seat includes an integrally formed mounting portion and a sealing portion, the outer ring diameter of the mounting portion is smaller than the outer ring diameter of the sealing portion, and a first sealing ring groove is provided on the outer side of the mounting portion at one end of the sealing portion close to the mounting portion, and a first sealing ring is installed in the first sealing ring groove; when the sealing seat is arranged on the vacuum box body, the mounting portion is placed inside the mounting hole opened on the vacuum box body, and the first sealing ring is tightly fitted to the outer side of the vacuum box body.

[0008] A further technical solution is that the sealing assembly includes a first seal, which is arranged in the installation groove, and a second sealing ring groove is opened at one end of the first seal close to the through hole, and a second sealing ring is arranged in the second sealing ring groove, and the second sealing ring is tightly fitted with the bottom of the installation groove; the other end of the first seal is fitted and connected with the second seal, and a pin combination for limiting and fixing is provided.

[0009] A further technical solution is that the pin combination includes a mounting end, a first conveying end and a second conveying end, a third sealing ring groove is provided at one end of the mounting end close to the first conveying end, the third sealing ring groove is arranged to surround the outer side of the first conveying end, and a third sealing ring is provided in the third sealing ring groove; a connecting groove matching the mounting end is provided at one end of the first sealing member close to the notch of the mounting groove, a first connecting hole connected to the inside of the mounting groove is provided at the other end of the first sealing member, and a second connecting hole running through both sides thereof is provided on the second sealing member. When the pin combination is arranged on the sealing assembly, the mounting end is placed in the connecting groove, the first conveying end passes through the first connecting hole, and the second conveying end passes through the second connecting hole, so that the third sealing ring is in close contact with the groove wall of the connecting groove.

[0010] A further technical solution is that a PG head fixing seat is provided on the end of the sealing seat away from the vacuum box and on the sealing assembly placed inside the vacuum box, an empty groove is provided inside the PG head fixing seat, and a conveying hole connected to the inside of the empty groove is provided on the side of the PG head fixing seat; the two ends of the pin combination are respectively placed in the empty groove.

[0011] A further technical solution is to provide the sealing component with a plurality of pin assemblies arranged in an array.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a pin combination on the sealing seat, the pin combination can be electrically connected to the wire, so that the wires connecting the two ends of the pin combination can be electrically connected, ensuring the electrical connection of the instruments on both sides of the vacuum box body, and at the same time, the sealing component can seal the blocking through hole and connect it to the inside of the vacuum box body, while ensuring the vacuum seal, the access of electrical signals is realized to meet the needs of electrical signal detection or judgment inside the helium detection environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the disassembled structure of a sealable signal transmission structure for a helium detection vacuum box.

[0014] Figure 2 The utility model is a cross-sectional view of a sealable signal transmission structure for a helium detection vacuum box.

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0016] Figure 4 This is a schematic diagram of the disassembly of the sealing component and the second sealing ring of the utility model.

[0017] Icon: 1-vacuum box, 2-sealing seat, 3-mounting groove, 4-through hole, 5-sealing assembly, 6-pin combination, 7-mounting part, 8-sealing part, 9-first sealing ring groove, 10-first sealing ring, 11-mounting hole, 12-first sealing member, 13-second sealing ring groove, 14-second sealing ring, 15-second sealing member, 16-mounting end, 17-first conveying end, 18-second conveying end, 19-third sealing ring groove, 20-third sealing ring, 21-connecting groove, 22-first connecting hole, 23-second connecting hole, 24-PG head fixing seat, 25-empty groove, 26-conveying hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Embodiment 1:

[0020] See also Figure 1 , Figure 2The utility model shows a sealable signal transmission structure for a helium detection vacuum box, comprising a sealing seat 2 which is sealably arranged on a vacuum box body 1, wherein the sealing seat 2 is arranged at one end inside the vacuum box body 1 and is provided with a mounting groove 3, and the sealing seat 2 is arranged at one end outside the vacuum box body 1 and is provided with a through hole 4 which is connected to the inside of the mounting groove 3, and a sealing component 5 which is used for sealing and blocking the through hole 4 from being connected to the inside of the vacuum box body 1 is provided in the mounting groove 3; the sealing component 5 is sealably provided with a pin assembly 6 which runs through both sides thereof; one end of the pin assembly 6 is arranged inside the vacuum box body 1, and the other end passes through the through hole 4 and is arranged outside the vacuum box body 1, the sealing seat 2 comprises an integrally formed mounting portion 7 and a sealing portion 8, the outer ring diameter of the mounting portion 7 is smaller than the outer ring diameter of the sealing portion 8, and the end of the sealing portion 8 which is close to the mounting portion 7 and encloses the outer side of the mounting portion 7 and is provided with a first sealing ring groove 9, and a first sealing ring 10 is installed in the first sealing ring groove 9; when the sealing seat 2 is arranged on the vacuum box body 1, a mounting hole 11 which is connected to the inside of the vacuum box body 1 is provided on the vacuum box body 1, and the position of the mounting hole 11 can be set according to actual needs The size of the mounting hole 11 matches the mounting portion 7, the mounting portion 7 is placed inside the mounting hole 11 opened on the vacuum box 1, and the first sealing ring 10 is tightly fitted with the outer side of the vacuum box 1. In actual use, the sealing seat 2 is fixedly installed on the vacuum box 1. The installation method can adopt welding, snap-on connection and other methods in the prior art, so that the mounting portion 7 on the sealing seat 2 is placed in the mounting hole 11 on the vacuum box 1, and the sealing portion 8 is tightly fitted with the outer side of the vacuum box 1 to compress the first sealing ring 10, thereby avoiding the presence of a gap between the sealing portion 8 and the vacuum box 1, destroying the vacuum environment inside the vacuum box 1, and the sealing component 5 can seal and block the through hole 4 and connect it to the inside of the vacuum box 1, so that a sealed cavity is formed inside the vacuum box 1, and by setting the pin combination 6, the pin combination 6 can be electrically connected to the wire, and the signal transmission wires on the inside and outside of the vacuum box 1 are respectively connected to the two ends of the pin combination 6, so that the wires connecting the two ends of the pin combination 6 are electrically connected, ensuring the transmission of electrical signals on the inside and outside of the vacuum box 1.

[0021] See also Figure 1 , Figure 2 and Figure 4 It is shown that the sealing assembly 5 includes a first sealing member 12, and the first sealing member 12 is arranged in the mounting groove 3. A second sealing ring groove 13 is opened at one end of the first sealing member 12 close to the through hole 4. A second sealing ring 14 is arranged in the second sealing ring groove 13. The second sealing ring 14 is tightly fitted with the bottom of the mounting groove 3. The other end of the first sealing member is fitted with the second sealing member and has a pin combination for limiting and fixing. During actual use, the first sealing member 12 is installed in the mounting groove 3. The installation method can adopt the bolt connection method in the prior art. The first sealing member 12 is fitted with the bottom of the mounting groove 3, and the second sealing ring 14 is pressed, thereby ensuring the sealing effect between the sealing assembly 5 and the mounting groove 3.

[0022] See also Figure 2 , Figure 3 As shown, the pin assembly 6 includes a mounting end 16, a first conveying end 17 and a second conveying end 18, the outer ring diameters of the first conveying end 17 and the second conveying end 18 are both smaller than the outer ring diameter of the mounting end 16, and a third sealing ring groove 19 is provided at one end of the mounting end 16 close to the first conveying end 17, and the third sealing ring groove 19 is arranged to surround the outer side of the first conveying end 17, and a third sealing ring 20 is arranged in the third sealing ring groove 19; a connecting groove 21 matching the mounting end 16 is provided at one end of the first sealing member 12 close to the notch of the mounting groove 3, a first connecting hole 22 connected to the inside of the mounting groove 3 is provided at the other end of the first sealing member 12, and a second connecting hole 23 running through both sides of the second sealing member 15 is provided. When the pin assembly 6 is arranged on the sealing component 5, the mounting The mounting end 16 is placed in the connecting groove 21, the first conveying end 17 passes through the first connecting hole 22, and the second conveying end 18 passes through the second connecting hole 23, so that the third sealing ring 20 is in close contact with the groove wall of the connecting groove 21; in actual use, the mounting end 16 is placed in the connecting groove 21, the first conveying end 17 passes through the first connecting hole 22, the second conveying end 18 passes through the second connecting hole 23, the second sealing member 15 is fitted with the first sealing member 12, the pin assembly 6 is limited, the mounting end 16 of the pin assembly 6 receives the pressure of the second sealing member 15, so that the third sealing ring groove 19 is fitted with the groove wall of the connecting groove 21, and the third sealing ring 20 is pressed, thereby ensuring the sealing effect between the pin assembly 6 and the connecting groove 21.

[0023] Embodiment 2:

[0024] Based on Example 1, refer to Figure 1 , Figure 2 As shown, a PG head fixing seat 24 is provided on the end of the sealing seat 2 away from the vacuum box 1 and the sealing component 5 placed inside the vacuum box 1. An empty slot 25 is provided inside the PG head fixing seat 24, and a conveying hole 26 connected to the inside of the empty slot 25 is provided on the side of the PG head fixing seat 24; the two ends of the pin assembly 6 are respectively placed in the empty slot 25. In actual use, the wires for signal transmission connected to the two ends of the pin assembly 6 are fixed in the empty slot 25 and then guided out through the conveying hole 26, thereby improving the neatness of the inside and outside of the vacuum box 1 and avoiding the connection between the pin assembly 6 and the wire from being directly exposed to the outside world, thereby ensuring the stability of the connection between the pin assembly 6 and the wire.

[0025] Embodiment 3:

[0026] Based on Example 1, refer to Figures 1 to 3 As shown, the sealing component 5 is provided with a plurality of pin assemblies 6 arranged in an array. By providing a plurality of pin assemblies 6, a plurality of wires for signal transmission can be electrically connected, thereby improving the practicability of the device.

[0027] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A sealable signal transmission structure for a helium inspection vacuum box, characterized in that: The invention comprises a sealing seat (2) which is sealingly arranged on a vacuum box (1); a mounting groove (3) is formed at one end of the sealing seat (2) which is arranged inside the vacuum box (1); a through hole (4) which is connected to the inside of the mounting groove (3) is formed at one end of the sealing seat (2) which is arranged outside the vacuum box (1); a sealing component (5) which is used for sealing and blocking the through hole (4) from being connected to the inside of the vacuum box (1) is provided in the mounting groove (3); a pin assembly (6) which passes through both sides of the sealing component (5); one end of the pin assembly (6) is arranged inside the vacuum box (1), and the other end of the pin assembly (6) passes through the through hole (4) and is arranged outside the vacuum box (1).

2. The sealable signal transmission structure for a helium inspection vacuum box according to claim 1, characterized in that: The sealing seat (2) comprises an integrally formed mounting portion (7) and a sealing portion (8); the outer ring diameter of the mounting portion (7) is smaller than the outer ring diameter of the sealing portion (8); an end of the sealing portion (8) close to the mounting portion (7) surrounds the outer side of the mounting portion (7) and is provided with a first sealing ring groove (9); a first sealing ring (10) is installed in the first sealing ring groove (9); when the sealing seat (2) is arranged on the vacuum box (1), the mounting portion (7) is placed inside a mounting hole (11) provided on the vacuum box (1), and the first sealing ring (10) is tightly fitted with the outer side of the vacuum box (1).

3. The sealable signal transmission structure for a helium inspection vacuum box according to claim 1, characterized in that: The sealing assembly (5) comprises a first sealing member (12) and a second sealing member (15), wherein the first sealing member (12) is arranged in the installation groove (3), and a second sealing ring groove (13) is provided at one end of the first sealing member (12) close to the through hole (4), and a second sealing ring (14) is provided in the second sealing ring groove (13), and the second sealing ring (14) is tightly fitted with the bottom of the installation groove (3); the other end of the first sealing member (12) is fittedly connected with the second sealing member (15) to limit and fix the pin assembly (6).

4. The sealable signal transmission structure for a helium inspection vacuum box according to claim 3, characterized in that: The pin assembly (6) comprises a mounting end (16), a first conveying end (17) and a second conveying end (18); a third sealing ring groove (19) is provided at one end of the mounting end (16) close to the first conveying end (17); the third sealing ring groove (19) is arranged to surround the outer side of the first conveying end (17); a third sealing ring (20) is provided in the third sealing ring groove (19); a connecting groove (21) matching the mounting end (16) is provided at one end of the first sealing member (12) close to the notch of the mounting groove (3); The other end of the sealing member (12) is provided with a first connection hole (22) in communication with the interior of the installation groove (3), and the second sealing member (15) is provided with second connection holes (23) penetrating through both sides thereof. When the pin assembly (6) is arranged on the sealing component (5), the installation end (16) is placed in the connection groove (21), the first conveying end (17) passes through the first connection hole (22), and the second conveying end (18) passes through the second connection hole (23), so that the third sealing ring (20) is in close contact with the groove wall of the connection groove (21).

5. The sealable signal transmission structure for a helium inspection vacuum box according to claim 1, characterized in that: A PG head fixing seat (24) is provided on one end of the sealing seat (2) away from the vacuum box (1) and on the sealing assembly (5) placed inside the vacuum box (1); a hollow groove (25) is provided inside the PG head fixing seat (24); a conveying hole (26) communicating with the inside of the hollow groove (25) is provided on the side surface of the PG head fixing seat (24); and both ends of the pin assembly (6) are respectively placed inside the hollow groove (25).

6. The sealable signal transmission structure for a helium inspection vacuum box according to claim 1, characterized in that: The sealing component (5) is provided with a plurality of pin assemblies (6) arranged in an array.

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