CN215811465U - Air tightness detection mechanism - Google Patents
Air tightness detection mechanism Download PDFInfo
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- CN215811465U CN215811465U CN202121615774.7U CN202121615774U CN215811465U CN 215811465 U CN215811465 U CN 215811465U CN 202121615774 U CN202121615774 U CN 202121615774U CN 215811465 U CN215811465 U CN 215811465U
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Abstract
The utility model provides an air tightness detection mechanism, which comprises: the test box comprises a box body and a cover body covering the box body, the box body and the cover body are covered to form a containing cavity for containing the connector, and a connecting pipe is arranged on the box body or the cover body and is communicated with the containing cavity; the first sensor is used for detecting the air pressure in the inner cavity of the connector and is positioned in the containing cavity; the second sensor is used for detecting the air pressure in the cavity and is arranged in the cavity; and the air pressure adjusting assembly is connected with the connecting pipe. The air tightness detection mechanism provided by the utility model adjusts the air pressure in the cavity through the air pressure adjusting assembly, can judge the air tightness of the connector according to the vertical change of the air pressure detected by the first sensor and the second sensor, realizes the detection of the air tightness of the connector, ensures the air tightness of the connector on the whole vehicle, and improves the safety performance of the connector and the whole vehicle.
Description
Technical Field
The utility model belongs to the technical field of connector detection, and particularly relates to an air tightness detection mechanism.
Background
By analyzing the failure mode of the power change vehicle, most failures are related to the quick-change plug-in unit, such as failure of the quick-change plug-in unit during driving, interface corrosion, sealing damage, socket and plug looseness and the like. The problem of tightness of the quick-change plug-in is involved, the existing connector is usually subjected to a plugging performance test or a conductivity test in the production process, and the air tightness of the connector on the power change vehicle cannot be guaranteed, so that the reliability of the connector on the power change vehicle is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model aims to provide an air tightness detection mechanism to solve the technical problem that the air tightness of a connector on a power change vehicle cannot be guaranteed in the production process of the connector in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is an airtightness detection mechanism including:
the test box comprises a box body and a cover body covering the box body, the box body and the cover body are covered to form a containing cavity for containing the connector, and a connecting pipe is arranged on the box body or the cover body and is communicated with the containing cavity;
the first sensor is used for detecting the air pressure in the inner cavity of the connector and is positioned in the containing cavity;
the second sensor is used for detecting the air pressure in the cavity and is arranged in the cavity; and the number of the first and second groups,
the air pressure adjusting assembly is used for adjusting air pressure in the containing cavity and connected with the connecting pipe.
Through adopting the test box, can hold the connector, keep apart connector and outside, can link to each other with the connector through first sensor, with the atmospheric pressure of measuring the connector inner chamber, can measure the atmospheric pressure of holding the intracavity through the second sensor, when the test box is sealed like this, utilize atmospheric pressure adjusting part to adjust the atmospheric pressure of holding the intracavity, can detect the gas tightness that the vertical change of atmospheric pressure judged the connector according to first sensor and second sensor, realize the detection to the connector gas tightness, ensure the gas tightness of connector, with the gas tightness of guarantee connector on whole car, improve the security performance of connector and whole car.
In one embodiment, the cover body is provided with a first mounting hole, a first signal wire connected with the first sensor penetrates through the first mounting hole, and the first signal wire is connected with the first mounting hole in a sealing mode.
Through adopting above-mentioned technical scheme, the first sensor of being convenient for is with signal output.
In one embodiment, the airtightness detection mechanism further comprises a connection seat for detachably and hermetically mounting the first sensor on the connector, the first sensor being connected to the connection seat.
Through adopting above-mentioned technical scheme, be convenient for the installation and the dismantlement of first sensor and connector.
In one embodiment, the connecting seat comprises a threaded section for being in threaded connection with the connector and a limiting cap arranged at one end of the threaded section, the first sensor is arranged in the limiting cap and the threaded section in a penetrating mode, and the first sensor penetrates out of one end, far away from the limiting cap, of the threaded section.
Through adopting above-mentioned technical scheme, can realize being connected dismantled of connector and connecting seat, and be convenient for sealed.
In one embodiment, the cover body is provided with a second mounting hole for placing a second sensor, a sealing assembly for sealing the second mounting hole is detachably mounted on the cover body, and the second sensor is connected with the sealing assembly.
Through adopting above-mentioned technical scheme, can prevent that the second mounting hole from revealing.
In one embodiment, the sealing assembly comprises a connecting screw rod and a connecting nut which are arranged in the second mounting hole in a penetrating mode, one end of the connecting screw rod is limited outside the cover body, the other end of the connecting screw rod extends into the containing cavity and is connected with the connecting nut, and the second sensor is embedded in one end, located in the containing cavity, of the connecting screw rod.
Through adopting above-mentioned technical scheme, the installation in the dismantlement of the second sensor of being convenient for.
In one embodiment, the edge of the box body is provided with a first flange, the cover body is provided with a second flange buckled with the first flange, and the box body further comprises a fastener for connecting the first flange and the second flange and a sealing gasket for sealing a gap between the first flange and the second flange.
Through adopting above-mentioned technical scheme, can strengthen the structural strength of box and lid, and can seal the appearance chamber.
In one embodiment, the air-tightness detecting mechanism further comprises a bracket mounted in the box body and a fixing member for fixing the connector to the bracket, and the fixing member is detachably connected to the bracket.
Through adopting above-mentioned technical scheme, the fixed of connector of being convenient for.
In one embodiment, the first sensor and/or the second sensor is a fiber optic sensor.
By adopting the technical scheme, the accuracy of pressure detection is favorably improved.
In one embodiment, the air pressure regulating assembly includes a compressor and/or a vacuum pump.
Through adopting above-mentioned technical scheme, can realize the regulation to test box internal gas pressure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of an air-tightness detection mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded view of the test chamber, first sensor and second sensor of FIG. 1;
FIG. 3 is a perspective view of the test chamber of FIG. 1;
FIG. 4 is a schematic structural diagram of the first sensor of FIG. 2;
FIG. 5 is a schematic diagram of the second sensor of FIG. 2;
FIG. 6 is a schematic structural diagram of a connector according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of the connector of fig. 6.
Wherein, in the figures, the respective reference numerals:
10-a test box; 101-a cavity; 11-a box body; 111-a first flange; 12-a cover body; 1201-a first mounting hole; 1202-a second mounting hole; 121-a second flange; 13-a connecting tube; 14-a gasket; 15-a fastener; 16-a scaffold; 17-a fixing member;
20-a first sensor; 21-a first signal line; 22-a connecting seat; 221-a thread section; 222-a stop cap; 23-mounting the assembly; 231-a fixing screw; 232-fixing nut;
30-a second sensor; 31-a second signal line; 32-a seal assembly; 321-connecting screw rod; 322-coupling nut;
40-an air pressure regulating assembly;
50-a connector; 501-inner cavity; 51-a first socket; 510-a connection hole; 52-second socket.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, are used in the sense of indicating or indicating an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1, 2 and 3, a description will now be given of a gas tightness detecting mechanism according to an embodiment of the present invention. The air tightness detection mechanism comprises a test box 10, a first sensor 20, a second sensor 30 and an air pressure adjusting assembly 40, wherein the test box 10 comprises a box body 11 and a cover body 12, the cover body 12 covers the box body 11 and forms a containing cavity 101, please refer to fig. 6 and fig. 7 together, the containing cavity 101 is used for containing a connector 50, a connecting pipe 13 is installed on the cover body 12, and the connecting pipe 13 is communicated with the containing cavity 101; the first sensor 20 is used for detecting the air pressure in the cavity 501 of the connector 50, the first sensor 20 is located in the cavity 101, and the first sensor 20 can be installed on the connector 50 to detect the air pressure in the cavity 501 of the connector 50; the second sensor 30 is used for detecting the air pressure in the cavity 101, the second sensor 30 is installed in the cavity 101, and the second sensor 30 is located outside the connector 50; the air pressure adjusting assembly 40 is used for adjusting the air pressure in the cavity 101 to change the air pressure outside the connector 50, and the air pressure adjusting assembly 40 is connected to the connecting pipe 13. Of course, the connection pipe 13 may be attached to the case 11, and the second sensor 30 may be attached to the case 11 or the cover 12.
Referring to fig. 2, 6 and 7, the connector 50 includes a first inserting seat 51 and a second inserting seat 52, the first inserting seat 51 is connected to the second inserting seat 52 in an inserting manner, the first inserting seat 51 and the second inserting seat 52 are inserted to form an inner cavity 501, a connecting hole 510 is formed in the first inserting seat 51, the connecting hole 510 is communicated with the inner cavity 501, and the first sensor 20 can extend into the inner cavity 501 through the connecting hole 510.
In this embodiment, the connector 50 may be placed in the test box 10, the first sensor 20 may be mounted on the connector 50, and then the test box 10 may be sealed, at which time the air pressure in the cavity 101 of the test box 10 may be adjusted by the air pressure adjusting assembly 40, and then whether the connector 50 leaks air may be determined according to the change of the pressure detection values of the first sensor 20 and the second sensor 30. When the air pressure adjusting assembly 40 extracts air from the cavity 101, the air pressure in the cavity 101 is reduced to generate a certain vacuum degree, and the pressure value detected by the second sensor 30 is reduced; if the pressure value detected by the first sensor 20 is fixed, it can be determined that the sealing performance of the connector 50 is good; if the pressure value detected by the first sensor 20 decreases as the pressure value detected by the second sensor 30 decreases, it can be determined that the connector 50 is leaking air. Of course, the air tightness of the connector 50 can also be tested by pressurizing the chamber 101 through the air pressure adjusting assembly 40, and the principle is the same, which is not described herein. Therefore, the airtightness of the connector 50 can be detected, the airtightness of the connector 50 is ensured, the airtightness of the connector 50 on the whole vehicle is ensured, and the safety performance of the connector 50 and the whole vehicle is improved.
In an embodiment of the present invention, referring to fig. 1 to fig. 3, a first mounting hole 1201 is formed on the cover 12, a first signal line 21 is inserted into the first mounting hole 1201, the first signal line 21 is connected to the first sensor 20, and the first signal line 21 is hermetically connected to the first mounting hole 1201. Therefore, the signal of the first sensor 20 can be transmitted to the outside of the test box 10 through the first signal line 21, and the air leakage between the first signal line 21 and the first mounting hole 1201 can be avoided, which affects the stability of the air pressure in the cavity 101 and interferes the detection result. Moreover, this is advantageous in reducing the volume of the test chamber 10.
In an embodiment of the present invention, referring to fig. 2, the first signal line 21 and the first mounting hole 1201 may be sealed by gluing, so that the sealing is relatively simple.
In another embodiment of the present invention, referring to fig. 2, fig. 3 and fig. 4, a mounting assembly 23 is detachably mounted on the cover 12, the mounting assembly 23 seals the first mounting hole 1201, and the first signal line 21 is disposed through the mounting assembly 23. In this way, the mounting component 23 can be used for realizing the detachable mounting of the first signal wire 21, and the mounting and dismounting of the first signal wire 21 and the first sensor 20 are facilitated.
Optionally, referring to fig. 2, fig. 3 and fig. 4, the mounting assembly 23 includes a fixing screw 231 and a fixing nut 232, the fixing screw 231 is inserted into the first mounting hole 1201, the fixing nut 232 is located inside the cover 12, one end of the fixing screw 231 is limited outside the cover 12, the other end of the fixing screw 231 extends into the cover 12 and is connected to the fixing nut 232, and the first signal line 21 is inserted into the fixing screw 231. By fastening the fixing screw 231 and the fixing nut 232 in this way, the first signal line 21 can be fixed, and the seal between the first signal line 21 and the first mounting hole 1201 can be ensured. Of course, an elastic gasket may be provided, and the gap between the fixing screw 231 and the first mounting hole 1201 is sealed by the elastic gasket, so as to further enhance the sealing effect of the mounting assembly 23.
Optionally, the fixing screw 231 may be provided with a first through hole, and a first sealing tube is installed in the first through hole and sleeved on the first signal line 21. The first sealing tube may be an elastic member, and the first sealing tube may be in interference fit with the inner wall of the first through hole and the first signal line 21 to seal the first mounting hole 1201.
In an embodiment of the present invention, referring to fig. 2 to 4, the air tightness detecting mechanism further includes a connecting seat 22, the connecting seat 22 is used for detachably mounting the first sensor 20 on the connector 50 and sealing a gap between the connecting hole 510 on the connector 50 and the first sensor 20, and the first sensor 20 is connected to the connecting seat 22. This facilitates the attachment and detachment of the first sensor 20 to and from the connector 50 and facilitates the testing of the hermeticity of the cavity 501 of the connector 50. Further, the connector 50 may be provided with a third sensor at the end of the vehicle, and the third sensor is used for detecting the real-time pressure of the inner cavity 501 of the connector 50, so as to detect the air tightness of the connector 50 in real time. The third sensor may be the same structure as the first sensor 20, and the third sensor may be installed in the connection hole 510 through the same structure as the connection seat 22, so that when the air tightness detection mechanism performs the air tightness test of the connector 50, the connection structure of the first sensor 20 and the connector 50 can simulate the actual installation structure of the third sensor at the end of the whole vehicle, so as to simulate and test the air tightness data of the connector 50 during the running process of the whole vehicle.
Optionally, the connecting seat 22 is provided with a second through hole, a second sealing tube is installed in the second through hole, and the first sensor 20 is sleeved with the second sealing tube. The second sealing tube may be an elastic member, and the second sealing tube may be in interference fit with the inner wall of the second through hole and the first sensor 20 to achieve sealing between the first sensor 20 and the connector 50.
In an embodiment of the present invention, referring to fig. 2 to 4, the connection seat 22 includes a threaded section 221 and a limiting cap 222, the threaded section 221 is used for being in threaded engagement with the connector 50 to achieve detachable connection between the connection seat 22 and the connector 50, the limiting cap 222 is disposed at one end of the threaded section 221, the limiting cap 222 is limited outside the connector 50, the first sensor 20 is disposed in the threaded section 221 in a penetrating manner, the first sensor 20 penetrates through the other end of the threaded section 221 and can extend into the inner cavity 501 of the connector 50, and the limiting cap 222 can limit the threaded section 221 from entering the connection hole 510 on one hand and facilitate mounting and dismounting of the connection seat 22 on the other hand. Alternatively, the stopper cap 222 may be an outer hexagonal structure, and an elastic gasket may be disposed between the stopper cap 222 and the connector 50 to seal a gap between the connection socket 22 and the connector 50. The connection hole 510 of the connector 50 may be a threaded hole, or a mounting nut is embedded in the connection hole 510, and the threaded section 221 is connected to the mounting nut.
In an embodiment of the present invention, referring to fig. 2, fig. 3 and fig. 5, a second mounting hole 1202 is formed on the cover 12, the second mounting hole 1202 is used for placing the second sensor 30, the sealing assembly 32 is detachably mounted on the cover 12, the sealing assembly 32 seals the second mounting hole 1202, and the second sensor 30 is connected to the sealing assembly 32. This facilitates the installation and removal of the second sensor 30 by employing the seal assembly 32 to removably attach to the cover 12. The second sensor 30 may be embedded in a sealing assembly 32, which facilitates sealing of the second sensor 30.
Optionally, referring to fig. 2, fig. 3 and fig. 5, the sealing assembly 32 includes a connection screw 321 and a connection nut 322, the connection screw 321 is disposed in the second mounting hole 1202, the connection nut 322 is located inside the cover 12, one end of the connection screw 321 is limited outside the cover 12, the other end of the connection screw 321 penetrates into the cavity 101 and is connected to the connection nut 322, the second sensor 30 is embedded on the connection screw 321, and the second sensor 30 is located at one end of the connection screw 321 close to the cavity 101. Thus, the second sensor 30 can be detachably mounted in the second mounting hole 1202 by the engagement of the connection screw 321 and the connection nut 322, and the second mounting hole 1202 can be sealed. Optionally, an elastic gasket may be sleeved on the connection screw 321 to seal a gap between the connection screw 321 and the second mounting hole 1202.
Optionally, a third through hole is formed in the connecting screw 321, a third sealing pipe is installed in the third through hole, and the second sensor 30 is sleeved with the third sealing pipe. The third sealing tube may be an elastic member, and the third sealing tube may be in interference fit with the inner wall of the third through hole and the second sensor 30 to seal the second mounting hole 1202.
In an embodiment of the present invention, referring to fig. 1 to 3, a first flange 111 is disposed on an edge of the box 11, a second flange 121 is disposed on the cover 12, the second flange 121 is capable of being fastened to the first flange 111, the air-tightness detecting mechanism further includes a gasket 14 and a fastener 15, the fastener 15 connects the first flange 111 and the second flange 121, the gasket 14 is installed between the first flange 111 and the second flange 121, and the gasket 14 seals a gap between the first flange 111 and the second flange 121, and by using the first flange 111 and the second flange 121, on one hand, structural strength of the edges of the box 11 and the cover 12 can be enhanced, so as to prevent a change in pressure in the cavity 101 due to deformation of the box 11 and the cover 12, and on the other hand, connection and sealing of the box 11 and the cover 12 are facilitated, so as to increase contact areas between the box 11 and the cover 12 and two sides of the gasket 14, and prevent the gasket 14 from collapsing and failing.
Optionally, the sealing pad 14 may be a rubber pad or a silicone pad, so that when the first flange 111 and the second flange 121 are fastened and pressed, a certain deformation is generated to attach to the surfaces of the first flange 111 and the second flange 121, which is beneficial to reducing the requirements on the surface processing accuracy of the first flange 111 and the second flange 121.
Alternatively, the fastening member 15 may be a screw, and the screw connection can clamp the sealing pad 14 when the screw is fastened, so as to ensure the sealing effect.
In one embodiment, the first flange 111 may be provided with a receiving groove for receiving the sealing pad 14, which is beneficial to ensure the position of the sealing pad 14 to be stable and prevent the sealing pad 14 from being displaced or crushed. Of course, the second flange 121 may also be provided with a receiving groove to receive the gasket 14, so that the positions of both sides of the gasket 14 can be kept stable.
In an embodiment of the present invention, referring to fig. 2 and 3, the air-tightness detecting mechanism further includes a bracket 16 and a fixing member 17, the bracket 16 is installed in the box 11, the bracket 16 is used for supporting the connector 50, and the fixing member 17 is used for fixing the connector 50 on the bracket 16 to ensure the stability of the position of the connector 50. Alternatively, the fixing member 17 may be a bolt. Of course, the bracket 16 may also be a structure similar to the installation position of the connector 50 on the whole vehicle, and the air tightness of the connector 50 during the use on the whole vehicle can be better tested by simulating the vibration environment of the vehicle.
In an embodiment of the present invention, the first sensor 20 is an optical fiber sensor, and the optical fiber sensor has high sensitivity and high precision, and can improve the detection precision of the air pressure in the cavity 501 of the connector 50, which is beneficial to ensuring the air tightness detection precision. The first sensor 20 may be a fiber optic pressure sensor or a fiber optic strain sensor, or the like. On the whole vehicle, the third sensor mounted on the connector 50 may be an optical fiber sensor, and a demodulator may be mounted on the vehicle and connected to the battery management system through the demodulator, so as to implement real-time monitoring on the air tightness of the connector 50 through the battery management system. Of course, the fiber optic sensor may be used to detect the pressure in the cavity 501 of the connector 50 for high end vehicles, and conventional pressure sensors may be used for medium or low end vehicles to reduce cost and improve practical applicability. The budget of the whole vehicle is estimated by 30 ten thousand yuan, and the common pressure sensor is adopted to replace an optical fiber sensor, so that the cost of the whole vehicle can be reduced by about 10-14%.
In an embodiment of the present invention, the second sensor 30 is an optical fiber sensor, and the optical fiber sensor has high sensitivity and high precision, and can improve the detection precision of the air pressure in the cavity 101 of the test box 10, which is beneficial to ensuring the air tightness detection precision. The second sensor 30 may be a fiber optic pressure sensor or a fiber optic strain sensor, etc.
Optionally, the airtightness detection mechanism further includes a demodulator (not shown), the first signal line 21 is an optical fiber, the second sensor 30 is connected to the second signal line 31, the second signal line 31 is an optical fiber, and the first signal line 21 and the second signal line 31 are connected to the demodulator, and the demodulator is configured to convert optical signals of the first sensor 20 and the second sensor 30 into electrical signals, so as to process and analyze the pressure detected by the first sensor 20 and the pressure detected by the second sensor 30.
Alternatively, referring to fig. 1 to 3, the number of the connecting pipes 13 is two, wherein: one connection pipe 13 may be for filling the test chamber 10 with gas, and the other connection pipe 13 may be for exhausting the gas from the test chamber 10. The connection of atmospheric pressure adjusting part 40 of being convenient for like this, and can be after the test is accomplished, outside through connecting pipe 13 intercommunication to atmospheric pressure is balanced inside and outside the test box 10, conveniently opens test box 10. Of course, it is also possible to use one connecting pipe 13 for the intake and exhaust.
In one embodiment, referring to fig. 1 to 3, the air pressure adjusting assembly 40 may include a compressor, and the compressor may pressurize the test box 10 to increase the air pressure in the cavity 101. If the air pressure in the cavity 501 of the connector 50 increases along with the air pressure in the cavity 101, the connector 50 leaks air; if the air pressure in the cavity 501 of the connector 50 is not changed, the air tightness of the connector 50 is qualified.
In another embodiment, referring to fig. 1-3, the pressure regulating assembly 40 may include a vacuum pump that draws gas from the chamber 101 of the test chamber 10 to reduce the pressure of the gas in the chamber 101. If the air pressure in the cavity 501 of the connector 50 decreases along with the air pressure in the cavity 101, the connector 50 leaks air; if the air pressure in the cavity 501 of the connector 50 is not changed, the air tightness of the connector 50 is qualified.
In another embodiment of the present invention, the number of the connection pipes 13 is two, and the air pressure adjusting assembly 40 includes a compressor and a vacuum pump, which are respectively connected to the two connection pipes 13. Thus, the test box 10 can be inflated, and the air in the test box 10 can be exhausted, so that the adjustment range of the air pressure in the test box 10 can be enlarged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Airtightness detection mechanism, its characterized in that includes:
the testing box comprises a box body and a cover body covering the box body, the box body and the cover body are covered to form a containing cavity for containing a connector, a connecting pipe is arranged on the box body or the cover body, and the connecting pipe is communicated with the containing cavity;
the first sensor is used for detecting the air pressure of the inner cavity of the connector and is positioned in the containing cavity;
the second sensor is used for detecting the air pressure in the containing cavity and is arranged in the containing cavity; and the number of the first and second groups,
the air pressure adjusting assembly is used for adjusting the air pressure in the containing cavity and is connected with the connecting pipe.
2. The airtightness detection mechanism according to claim 1, wherein: the cover body is provided with a first mounting hole, a first signal wire connected with the first sensor penetrates through the first mounting hole, and the first signal wire is connected with the first mounting hole in a sealing mode.
3. The airtightness detection mechanism according to claim 1, wherein: the air tightness detection mechanism further comprises a connecting seat used for detachably and hermetically installing the first sensor on the connector, and the first sensor is connected with the connecting seat.
4. The airtightness detection mechanism according to claim 3, wherein: the connecting seat comprises a threaded section and a limiting cap, the threaded section is used for being in threaded connection with the connector, the limiting cap is arranged at one end of the threaded section, the first sensor penetrates through the limiting cap and the threaded section, and the first sensor penetrates out from one end, far away from the limiting cap, of the threaded section.
5. The airtightness detection mechanism according to claim 1, wherein: the cover body is provided with a second mounting hole for placing the second sensor, the cover body is detachably provided with a sealing assembly for sealing the second mounting hole, and the second sensor is connected with the sealing assembly.
6. The airtightness detection mechanism according to claim 5, wherein: the sealing assembly comprises a connecting screw rod and a connecting nut which are arranged in the second mounting hole in a penetrating mode, one end of the connecting screw rod is limited outside the cover body, the other end of the connecting screw rod extends into the containing cavity and is connected with the connecting nut, and the second sensor is embedded in the connecting screw rod and is located at one end of the containing cavity.
7. The airtightness detection mechanism according to claim 2, wherein: the edge of box is equipped with first flange, be equipped with on the lid with the second flange of first flange lock, the box is still including connecting first flange with the fastener of second flange and sealed first flange with the sealed pad in clearance between the second flange.
8. The airtightness detection mechanism according to claim 2, wherein: the air tightness detection mechanism further comprises a support arranged in the box body and a fixing piece used for fixing the connector on the support, and the fixing piece is detachably connected with the support.
9. The airtightness detection mechanism according to any one of claims 1 to 8, wherein: the first sensor and/or the second sensor are/is an optical fiber sensor.
10. The airtightness detection mechanism according to any one of claims 1 to 8, wherein: the air pressure regulating assembly includes a compressor and/or a vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121615774.7U CN215811465U (en) | 2021-07-15 | 2021-07-15 | Air tightness detection mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121615774.7U CN215811465U (en) | 2021-07-15 | 2021-07-15 | Air tightness detection mechanism |
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| CN215811465U true CN215811465U (en) | 2022-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247660A (en) * | 2022-03-02 | 2022-03-29 | 武汉飞恩微电子有限公司 | Automatic detection equipment for air tightness of sensor |
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2021
- 2021-07-15 CN CN202121615774.7U patent/CN215811465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247660A (en) * | 2022-03-02 | 2022-03-29 | 武汉飞恩微电子有限公司 | Automatic detection equipment for air tightness of sensor |
| CN114247660B (en) * | 2022-03-02 | 2022-06-10 | 武汉飞恩微电子有限公司 | Automatic detection equipment for air tightness of sensor |
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