CN220356596U - Air tightness detection device for PCB product - Google Patents
Air tightness detection device for PCB product Download PDFInfo
- Publication number
- CN220356596U CN220356596U CN202321846374.6U CN202321846374U CN220356596U CN 220356596 U CN220356596 U CN 220356596U CN 202321846374 U CN202321846374 U CN 202321846374U CN 220356596 U CN220356596 U CN 220356596U
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- China
- Prior art keywords
- box body
- pcb product
- top cover
- air tightness
- pcb
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- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 abstract description 12
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of PCB product detection, and discloses an air tightness detection device of a PCB product, which comprises: the box body is provided with an opening at one side, and an air inlet hole is formed in the side wall of the box body; the fixing piece is arranged in the box body and used for fixing a PCB product in the box body, and the PCB product is in sealing connection with the side wall of the box body, which is provided with an opening, when the PCB product is fixed in the fixing piece; the box body at the opening and the product form a solution cavity, and the solution cavity is used for containing detection liquid. During operation, with PCB product butt in the casing, pour into the detection liquid in the solution chamber, rethread air inlet is gaseous to confined casing injection, if detect the bubble in the liquid and produce, can judge that PCB product seal failure, and the position that the bubble produced knows the seal failure position of PCB product, convenient and fast can easily find seal failure point, satisfies the production line demand, solves the product problem fast.
Description
Technical Field
The utility model relates to the technical field of PCB product detection, in particular to an air tightness detection device of a PCB product.
Background
Currently, the outdoor model of a telecommunication wireless terminal server is provided with IPX5/X6 waterproof level, and a sealing test (called airtight detection herein) is the standard of the product. The conventional detection tool is used for detecting the tightness of a cavity body of a mounting surface (called a structural member inner cavity or an inner cavity herein) of a PCB, and when a bad state occurs in the detection process, the PCB is usually placed into a water tank to find out a problem source by observing the state of bubbles, and the problem is solved. The conventional operation can quickly solve the detection problem and clean the root for products with simple structures; however, for products with complex structures and products with overlapped components, after poor detection, a sealing failure point cannot be found quickly, and the production line requirement is difficult to meet, so that the problem products cannot be solved quickly.
Disclosure of Invention
The purpose of the utility model is that: the utility model provides a PCB product's gas tightness detection device, the sealed failure position of PCB product is known to the position that accessible bubble produced, and convenient and fast can easily find sealed failure point, satisfies the production line demand, solves the product problem fast.
In order to achieve the above object, the present utility model provides an air tightness detection device for a PCB product, comprising:
the box body is provided with an opening at one side, and an air inlet hole is formed in the side wall of the box body;
the fixing piece is arranged in the box body and used for fixing a PCB product in the box body, and the PCB product is fixed on the fixing piece and is connected with the side wall of the box body, provided with the opening, in a sealing way;
the box body at the opening and the product form a solution cavity, and the solution cavity is used for containing detection liquid.
Compared with the prior art, the air tightness detection device for the PCB product has the beneficial effects that: the box is internally provided with a containing cavity, the top of the containing cavity is provided with an opening, the opening is communicated with the outside, the containing cavity is internally provided with a fixing piece facing the opening, the fixing piece is used for fixing a PCB product during detection and abutting the upper end face of the PCB product on the shell, the shell is in sealing connection with the PCB product, and a solution cavity is formed between the box at the opening and the product. During operation, with PCB product butt in the casing, pour into the detection liquid in the solution chamber, rethread air inlet is gaseous to confined casing injection, if detect the bubble in the liquid and produce, can judge that PCB product seal failure, and the position that the bubble produced knows the seal failure position of PCB product, convenient and fast can easily find seal failure point, satisfies the production line demand, solves the product problem fast.
According to the air tightness detection device for the PCB product, the box body comprises the top cover and the box body which are arranged in a split mode, and the top cover is detachably and hermetically connected to the box body.
According to the air tightness detection device for the PCB product, the top cover is provided with the sealing cover, and the sealing cover is buckled on the top cover and is used for sealing the top cover.
According to the air tightness detection device for the PCB product, the sealing rubber strip is arranged on the end face of one side, facing the box body, of the top cover, and the sealing rubber strip corresponds to the side wall of the box body.
According to the air tightness detection device for the PCB product, provided by the embodiment of the utility model, the periphery of the top cover is provided with the plurality of limiting blocks, and the end face of one side of the top cover, which is opposite to the box body, is provided with the handle.
According to the air tightness detection device for the PCB product, the fixing piece comprises the cushion block, and the PCB product is fixed to the cushion block when placed in the box body.
According to the air tightness detection device for the PCB product, the plurality of positioning blocks are arranged on the periphery of the cushion block so as to position the PCB product.
According to the air tightness detection device for the PCB product, the plurality of balance weights are symmetrically arranged in the box body and are abutted against the inner side wall of the box body.
According to the air tightness detection device for the PCB product, provided by the embodiment of the utility model, the balance block is provided with the fastening hole, and the box body is provided with the fastening piece which corresponds to the fastening hole and is matched with the fastening hole in size.
According to the air tightness detection device for the PCB product, the sealing ring is arranged on the outer side of the fastening piece so as to seal the gap between the fastening hole and the fastening piece.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of an air tightness detection device for PCB products according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a top cover of an air tightness detection device of a PCB product according to an embodiment of the present utility model;
fig. 3 is a schematic view of a box body of an air tightness detection device of a PCB product according to an embodiment of the present utility model;
in the figure, 1, a box body; 11. an opening; 12. an air inlet hole; 13. a solution chamber; 14. a top cover; 141. a fastener; 15. a case body; 16. sealing cover; 17. a sealing rubber strip; 18. a limiting block; 19. a handle; 2. a fixing member; 21. a positioning block; 22. a balance weight; 221. fastening holes.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1, 2 and 3, the air tightness detection device for PCB products according to the preferred embodiment of the present utility model includes a box 1 and a fixing member 2, wherein the box 1 is rectangular and surrounded by a plate, a receiving cavity is provided in the box 1, an opening 11 is provided at one side of the box 1, the opening 11 is provided on a top plate of the receiving cavity, an air inlet 12 is provided on a side wall of the box 1, the air inlet 12 is provided at a side plate of the plate, the air inlet 12 can be connected with an external air charging device to charge air in the housing, it is understood that the number of air inlets 12 can be one or more, and the utility model is not limited in detail herein;
the fixing piece 2 is arranged in the box body 1, the fixing piece 2 is used for fixing a PCB product in the box body 1, and when the PCB product is fixed on the fixing piece 2, the side wall of the box body 1 provided with the opening 11 is connected in a sealing way, so that the shell is connected with the PCB product in a sealing way; the box body 1 at the opening 11 and the product are provided with a solution cavity 13, the solution cavity 13 is used for containing detection liquid, and if the PCB product has a sealing failure point, the leakage position can be directly found through the bubble condition of the detection liquid. During operation, the PCB product is abutted to the shell, the detection liquid is injected into the solution cavity 13, the air is injected into the closed shell through the air inlet 12, if bubbles are generated in the detection liquid, the sealing failure of the PCB product can be judged, the sealing failure position of the PCB product can be known through the position where the bubbles are generated, the sealing failure point can be easily found, the production line requirement is met, and the product problem is rapidly solved.
In some embodiments of the present utility model, an airtight detection device may be further disposed in the accommodating cavity to detect the pressure drop/pressure relief problem, so that the airtight leakage effect in the accommodating cavity may be intuitively known, and the sealing condition of the PCB product may be further known.
In some embodiments of the present utility model, the case 1 includes a top cover 14 and a case 15 that are separately provided, and the top cover 14 is detachably and hermetically connected to the case 15. The top cover 14 and the box body 15 are detached when the PCB product is assembled and disassembled, and are in sealing connection when the PCB product is subjected to sealing detection, and the detachable box body 15 and the top cover 14 can flexibly cope with different working condition demands. Sealing treatment is carried out between the box body 15 and the top cover 14, so that the air tightness leakage caused by gaps between the box body 15 and the top cover 14 is prevented, and the sealing detection effect is influenced.
In some embodiments of the present utility model, the top cover 14 is provided with the sealing cover 16, the sealing cover 16 is fastened to the top cover 14, and the sealing cover 16 is disposed at one side of the opening 11, so as to seal the part of the top cover 14 that has to leak out during design, thereby ensuring the sealing effect of the top cover 14; and can be removed as necessary to view the contents of the case 15.
In some embodiments of the present utility model, a sealing rubber strip 17 is disposed on an end surface of the top cover 14 facing the box body 15, the sealing rubber strip 17 is disposed around an outer side surface of the top cover 14 in a horizontal direction, the sealing rubber strip 17 corresponds to a side wall position of the box body 15, two sides of the sealing rubber strip 17 respectively abut against the side wall of the box body 15 and the outer side surface of the top cover 14, so that air tightness leakage caused by a gap between the box body 15 and the top cover 14 is prevented, and a sealing detection effect is affected.
In some embodiments of the present utility model, a plurality of limiting blocks 18 are disposed around the top cover 14, the upper ends of the limiting blocks 18 are fixedly connected to the peripheral sides of the top cover 14, the lower ends of the limiting blocks 18 extend to the outer sides of the box body 15, the limiting blocks 18 are configured to prevent the top cover 14 from sliding relative to the box body 15 when the top cover 14 is mounted to the box body 15, and further limit the position of the top cover 14 in the horizontal direction, so that the fixation between the box body 15 and the top cover 14 is ensured to be firm; the top cover 14 is provided with the handle 19 on the terminal surface of one side that is away from box body 15, and handle 19 is provided with at least two and symmetry setting in the top of top cover 14, and the user of being convenient for opens top cover 14, takes out the PCB product.
In some embodiments of the present utility model, the fixing member 2 includes a spacer, which is in a shape of a Chinese character 'tian', and is disposed on the bottom wall of the case 15, and the PCB product is fixed to the spacer when placed in the case 1, and the height of the spacer is set so as to be capable of abutting the PCB product on the top side wall of the case 15. Further, the cushion block can be replaced or adjusted in height, so that the cushion block can be adapted to PCB products with different thicknesses, and the flexibility of the device is improved.
In some embodiments of the present utility model, a plurality of positioning blocks 21 are disposed around the cushion block to position the PCB product, and the positioning blocks 21 are symmetrically disposed around the cushion block to limit the PCB product in the horizontal direction, so as to prevent the PCB product from sliding during the airtight detection process, and ensure the smoothness of the sealing detection process.
In some embodiments of the present utility model, a plurality of weights 22 are symmetrically disposed in the case 1, the weights 22 are used for connecting the top cover 14 and the case 15, the weights 22 are disposed in abutment with the inner side wall of the case 1 and uniformly distributed in the case 15, and the plurality of weights 22 work for fixing, so as to ensure firm fixation between the case 15 and the top cover 14.
In some embodiments of the present utility model, the balance weight 22 is provided with a fastening hole 221, the top cover 14 is provided with a fastener 141 corresponding to the fastening hole 221 and having a size matching with the fastening hole 221, and the fastener 141 is fixed in the fastening hole 221, so as to achieve the fixation between the top cover 14 and the box body 15. Specifically, the fastening hole 221 may include a screw hole, the fastening member 141 may include a screw, and the fastening hole 221 and the fastening member 141 are connected through threads, so that the fastening device is convenient to assemble and disassemble, and is firmly fixed.
In some embodiments of the present utility model, a sealing ring is disposed on the outer side of the fastening member 141 to close the gap between the fastening hole 221 and the fastening member 141, further enhancing the sealing between the case 15 and the top cover 14, and preventing the gap between the case 15 and the top cover 14 from causing airtight leakage, thereby affecting the sealing detection effect.
The working process of the utility model is as follows: the box 1 is internally provided with a containing cavity, the top of the containing cavity is provided with an opening 11, the opening 11 is communicated with the outside, the containing cavity is internally provided with a fixing piece 2 which faces the opening 11, and the fixing piece 2 is used for fixing a PCB product during detection and abutting the upper end face of the PCB product on the shell, so that the shell is in sealing connection with the PCB product. When the PCB product is in operation, the PCB product is abutted against the shell, the detection liquid is injected into the solution cavity 13, then the air is injected into the closed shell through the air inlet 12, if the detection liquid has bubbles, the sealing failure of the PCB product can be judged, and the sealing failure position of the PCB product can be known through the position of the bubbles.
In summary, the embodiment of the utility model provides a device for detecting the air tightness of a PCB product, which can know the sealing failure position of the PCB product through the position generated by bubbles, is convenient and quick, can easily find out the sealing failure point, meets the requirement of a production line, and rapidly solves the problem of the product.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (10)
1. An air tightness detection device for a PCB product, comprising:
the box body is provided with an opening at one side, and an air inlet hole is formed in the side wall of the box body;
the fixing piece is arranged in the box body and used for fixing a PCB product in the box body, and the PCB product is fixed on the fixing piece and is connected with the side wall of the box body, provided with the opening, in a sealing way;
the box body at the opening and the product form a solution cavity, and the solution cavity is used for containing detection liquid.
2. The device for detecting the air tightness of a PCB product according to claim 1, wherein: the box body comprises a top cover and a box body which are arranged in a split mode, and the top cover is detachably and hermetically connected with the box body.
3. The device for detecting the air tightness of a PCB product according to claim 2, wherein: the top cover is provided with a sealing cover which is buckled on the top cover and is used for sealing the top cover.
4. The device for detecting the air tightness of a PCB product according to claim 2, wherein: the top cover faces to one side end face of the box body, and sealing rubber strips are arranged on the end face of one side of the top cover and correspond to the side wall of the box body in position.
5. The device for detecting the air tightness of a PCB product according to claim 2, wherein: a plurality of limiting blocks are arranged around the top cover, and a handle is arranged on the end face of one side of the top cover, which faces away from the box body.
6. The device for detecting the air tightness of a PCB product according to claim 1, wherein: the fixing piece comprises a cushion block, and the PCB product is fixed on the cushion block when placed in the box body.
7. The device for detecting the air tightness of a PCB product according to claim 6, wherein: a plurality of positioning blocks are arranged around the cushion block to position the PCB product.
8. The device for detecting the air tightness of a PCB product according to claim 1, wherein: a plurality of balance weights are symmetrically arranged in the box body, and the balance weights are abutted to the inner side wall of the box body.
9. The device for detecting the air tightness of a PCB product according to claim 8, wherein: the balance weight is provided with a fastening hole, and the box body is provided with a fastener which corresponds to the fastening hole and is matched with the fastening hole in size.
10. The device for detecting the air tightness of a PCB product according to claim 9, wherein: and a sealing ring is arranged on the outer side of the fastening piece so as to seal a gap between the fastening hole and the fastening piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321846374.6U CN220356596U (en) | 2023-07-13 | 2023-07-13 | Air tightness detection device for PCB product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321846374.6U CN220356596U (en) | 2023-07-13 | 2023-07-13 | Air tightness detection device for PCB product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220356596U true CN220356596U (en) | 2024-01-16 |
Family
ID=89503954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321846374.6U Active CN220356596U (en) | 2023-07-13 | 2023-07-13 | Air tightness detection device for PCB product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220356596U (en) |
-
2023
- 2023-07-13 CN CN202321846374.6U patent/CN220356596U/en active Active
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