Circuit board gas test box
By designing a miniaturized circuit board gas test box and utilizing rotating connections and sealing clamps, the problems of large size and poor sealing of existing circuit board gas test boxes have been solved, achieving gas resource conservation and improved testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SGX SENSORTECH CHINA LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing circuit board gas testing boxes are large in size, complex in structure, and have poor sealing, resulting in waste of gas resources and low testing efficiency.
The top cover and base are connected by a rotating mechanism, which, together with the sealing clip and seal, forms a small test chamber. The circuit board is fixed by a filling plate, which reduces the amount of gas used and improves the sealing performance.
The miniaturized test kit reduces gas consumption, improves detection efficiency and convenience, adapts to various testing scenarios, and ensures testing stability and accuracy.
Smart Images

Figure CN224436509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circuit board testing equipment, and specifically to a circuit board gas testing box. Background Technology
[0002] Circuit board gas testing is a technique that uses specialized equipment and methods to test circuit boards in specific environments (such as high temperature, humidity, or electrical operation). Its purpose is to evaluate the reliability and safety of circuit board materials and to identify short circuits, component damage, or other safety hazards caused by material aging, soldering defects, or chemical reactions. It is widely used in fields such as electronics manufacturing, aerospace, and automotive electronics.
[0003] Existing square test boxes are large in size, have a complex structure, and poor sealing. They occupy a lot of storage and operation space, and the testing process involves the operation of multiple gas circuit switches and valves. During the testing process, a large amount of gas far exceeding the actual detection requirements needs to be introduced, resulting in a serious waste of gas resources, significantly extending the testing time, and reducing the detection efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a circuit board gas testing box in order to solve the above problems.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:
[0006] The upper cover and the base are rotatably connected. The upper cover is provided with a sealing clip, and the base is provided with a sealing element. The upper cover and the base together form a test chamber.
[0007] A filling plate is detachably installed inside the base, and a circuit board is detachably installed on the filling plate. The filling plate is used to fill the test chamber space.
[0008] As a further description of the above technical solution, multiple sets of hinges are equidistantly arranged on one side of the upper cover and the base, and the upper cover and the base are rotatably connected by the hinges.
[0009] As a further description of the above technical solution, the sealing clip is detachably installed on the top edge of the upper cover, and the sealing clip is a quick clamp.
[0010] As a further description of the above technical solution, the sealing ring is filled and installed in the sealing groove on the top edge of the base, and the sealing element is an elastic sealing ring.
[0011] As a further description of the above technical solution, the base has a placement groove inside, and the placement groove has first mounting holes symmetrically arranged on it.
[0012] As a further description of the above technical solution, a second mounting hole is correspondingly provided on the filling plate, and the second mounting hole is used to fix the filling plate in conjunction with the first mounting hole.
[0013] As a further description of the above technical solution, adjustment holes are symmetrically provided on the outer side of the second mounting hole, and the adjustment holes are used to adjust the position of the circuit board.
[0014] As a further description of the above technical solution, support holes are symmetrically provided inside the second mounting hole, and the support holes are used to support the circuit board.
[0015] As a further description of the above technical solution, the base has flow holes on both sides, and quick-connect connectors can be detachably installed in the flow holes.
[0016] As a further description of the above technical solution, a power interface is provided on one side of the middle part of the base. After the test wire is connected to the connection interface of the circuit board, it is electrically connected to the external power line through the power interface.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. In this utility model, the upper cover is provided with a sealing clip, the base is provided with a sealing element, and the upper cover and the base are connected by a hinge to form a long strip-shaped test chamber. The overall structure is simple, the test volume is small, and the disassembly is convenient, which can effectively reduce the amount of test gas used.
[0019] 2. In this utility model, a filling plate can be detachably installed inside the base, which can fill the internal space of the test chamber, raise and fix the circuit board, and further reduce the amount of test gas used.
[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0021] Figure 1 This is a front view of the circuit board gas testing box of this utility model;
[0022] Figure 2 This is a cross-sectional view of the circuit board gas testing box of this utility model;
[0023] Figure 3 This is a top view of the circuit board gas testing box of this utility model;
[0024] Figure 4 This is a side view of the circuit board gas testing box of this utility model.
[0025] Figure label:
[0026] 1. Top cover; 2. Base; 21. Sealing groove; 22. Placement groove; 23. Flow hole; 24. First mounting hole; 25. Power interface; 3. Sealing clip; 4. Sealing element; 5. Filler plate; 51. Second mounting hole; 52. Adjustment hole; 53. Support hole; 6. Circuit board; 61. Connection interface; 7. Hinge; 8. Quick connector. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0028] like Figures 1-4 As shown, in one embodiment, a circuit board gas test box includes: an upper cover 1 and a base 2 rotatably connected, wherein the upper cover 1 is provided with a sealing clip 3, and the base 2 is correspondingly provided with a sealing element 4, and the upper cover 1 and the base 2 are rotatably connected.
[0029] Specifically, multiple sets of hinges 7 are equidistantly arranged on one side of the top cover 1 and the base 2. The top cover 1 and the base 2 are connected by hinges 7, which allows testers to quickly put the circuit board 6 into or take out the test box, greatly shortening the test preparation time.
[0030] Furthermore, the sealing clip 3 is detachably installed on the top edge of the upper cover 1. The sealing clip 3 is a quick clamp that can apply a strong clamping force instantly. Correspondingly, a fixing ear is installed on the outer edge of the base 2. When the sealing clip 3 is fastened to the fixing ear, it can quickly and tightly fix the upper cover 1 and the base 2 together, so that the sealing clip 3 and the fixing ear can cooperate to achieve a quick locking function. Correspondingly, the sealing ring is filled in the sealing groove 21 on the top edge of the base 2. The sealing element 4 is an elastic sealing ring made of rubber or other materials. During the process of the sealing clip 3 locking the upper cover 1 and the base 2, the elastic sealing ring will be squeezed and deformed, thereby filling the gap between the upper cover 1 and the base 2, so that the gap between the upper cover 1 and the base 2 can achieve a sealed connection, thereby improving the sealing performance.
[0031] Understandably, when the top cover 1 is flipped over and placed on the base 2, it can enclose and seal to form a long, narrow, small test chamber. Compared with traditional square, bulky gas testing devices, this miniaturized chamber design fundamentally reduces the testing space, significantly reducing the amount of gas required for testing and effectively avoiding the waste of gas resources. Moreover, the overall structure is simple, greatly improving testing efficiency. Its compact size not only makes it easy to carry and store, but also allows it to flexibly adapt to various testing scenarios.
[0032] Furthermore, flow holes 23 are provided on both sides of the base 2, and quick-connect connectors 8 can be detachably installed in the flow holes 23 for connecting to an external air source or circulation pipeline, which facilitates the replacement of air paths or equipment maintenance under different testing requirements; while a power interface 25 is provided on one side of the middle of the base 2, so that the connection interface 61 of the circuit board 6 can be connected to the test wires and then electrically connected to the external power line through the power interface 25, so that the testers can obtain real and effective test data.
[0033] Please continue reading. Figures 1-4 In this embodiment, a filling plate 5 is detachably installed inside the base 2, and a circuit board 6 is detachably installed on the filling plate 5. The filling plate 5 can flexibly adjust the spatial layout of the test cavity inside the base 2 according to the differences in the size and shape of the circuit board 6.
[0034] Specifically, the top cover 1, base 2, and filling plate 5 are all made of transparent materials such as acrylic, which have good mechanical strength, corrosion resistance, and high light transmittance. The working status of the circuit board 6 inside the test chamber can be observed in real time after the power is applied, which effectively improves the convenience and accuracy of the test.
[0035] Understandably, in actual testing, the filling plate 5 can not only effectively elevate the circuit board 6 to place it in the optimal testing position, but also significantly reduce the volume of the testing space by closely fitting the inner wall of the testing chamber, thereby significantly reducing the amount of gas required for testing. While ensuring the testing effect, it greatly reduces the consumption of gas resources. In addition, the filling plate 5 can also ensure that the circuit board 6 remains stable during the testing process, avoiding the impact of factors such as shaking and displacement on the test results.
[0036] Specifically, the base 2 has a placement groove 22 inside, and the placement groove 22 has symmetrical first mounting holes 24. The filler plate 5 has corresponding second mounting holes 51, so that the second mounting holes 51 can be used with the first mounting holes 24 to firmly fix the filler plate 5 in the base 2 with screws or other connectors, ensuring that it will not loosen during the test. Correspondingly, the second mounting holes 51 have symmetrical adjustment holes 52 on the outside. When placing the circuit board 6, the position of the circuit board 6 can be finely adjusted left and right through the adjustment holes 52 to ensure that the circuit board 6 is in the optimal position in the test chamber. Furthermore, the second mounting holes 51 also have symmetrical support holes 53 on the inside, which can cooperate with copper pillars of corresponding size to provide stable support for the circuit board 6, effectively distributing the weight of the circuit board 6 and the stress during the test, further improving the stability and reliability of the test.
[0037] Working principle: During gas testing, firstly, the filling plate 5 is placed inside the base 2, and then the filling plate 5 and the base 2 are fixed with screws. Then, the circuit board 6 is placed on the filling plate 5, and after fine-tuning by moving it left and right to determine the placement position, it is fixed with screws and copper pillars. Then, the connection interface 61 of the circuit board 6 is connected to the test wire, and then electrically connected to the external power line through the power interface 25. Finally, the top cover 1 is closed and locked and sealed with quick clamps. Then, the test gas is introduced through the external gas source, and the power is turned on to start the test process.
[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A circuit board gas testing box, characterized in that, include: The upper cover (1) and the base (2) are rotatably connected. The upper cover (1) is provided with a sealing clip (3), and the base (2) is provided with a sealing element (4). The upper cover (1) and the base (2) together form a test chamber. A filling plate (5) is detachably installed inside the base (2), and a circuit board (6) is detachably installed on the filling plate (5). The filling plate (5) is used to fill the test chamber space.
2. The circuit board gas testing box according to claim 1, characterized in that, Multiple sets of hinges (7) are equidistantly arranged on one side of the upper cover (1) and the base (2), and the upper cover (1) and the base (2) are rotatably connected by the hinges (7).
3. The circuit board gas testing box according to claim 1, characterized in that, The sealing clip (3) is detachably installed on the top edge of the upper cover (1), and the sealing clip (3) is a quick clamp.
4. The circuit board gas testing box according to claim 1, characterized in that, The sealing element (4) is an elastic sealing ring, which is filled in the sealing groove (21) at the top edge of the base (2).
5. The circuit board gas testing box according to claim 1, characterized in that, The base (2) has a placement groove (22) inside, and the placement groove (22) has first mounting holes (24) symmetrically arranged on it.
6. The circuit board gas testing box according to claim 1, characterized in that, The filling plate (5) is provided with a second mounting hole (51), which is used to fix the filling plate (5) in conjunction with the first mounting hole (24).
7. The circuit board gas testing box according to claim 6, characterized in that, The second mounting hole (51) is symmetrically provided with adjustment holes (52) on the outside, and the adjustment holes (52) are used to adjust the position of the circuit board (6).
8. The circuit board gas testing box according to claim 6, characterized in that, The second mounting hole (51) has symmetrically provided support holes (53) on its inner side, and the support holes (53) are used to support the circuit board (6).
9. The circuit board gas testing box according to claim 1, characterized in that, The base (2) has flow holes (23) on both sides, and quick-connect connectors (8) can be detachably installed in the flow holes (23).
10. The circuit board gas testing box according to claim 1, characterized in that, A power interface (25) is provided on one side of the middle of the base (2). After the test wire is connected to the connection interface (61) of the circuit board (6), it is electrically connected to the external power line through the power interface (25).