High-performance screen board and circuit break protector

Abstract

The utility model provides a high-performance screen board and a circuit break protector. The high-performance screen board comprises a plurality of meshes which are arranged in sequence. The outer edges of the meshes are integrally pressed to form annular clamping parts and breathable filtering parts located between the annular clamping parts. And in the arrangement direction of the meshes, the two ends of the breathable filtering part protrude out of the annular clamping parts. According to the high-performance screen plate provided by the utility model, a plurality of meshes are integrally pressed and combined, the thickness of a combined body can be increased, meanwhile, the hole diameter of the meshes can be reduced, and the breathable filtering part is arranged in a protruding manner, so that a relatively large impact force can be resisted, meanwhile, a good filtering effect can be ensured, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted circuit breaker protectors, and in particular relates to a high-performance mesh plate and a circuit breaker protector. Background Art

[0002] With the rapid development of electric vehicles, the safety of vehicle driving has also received further attention. Therefore, circuit breakers are introduced into the vehicle safety system. Their main function is to cut off the circuit between the power supply and the electrical appliances after a collision or other failure of the vehicle, so as to improve the safety of the vehicle and effectively protect the electrical appliances from any level of overcurrent.

[0003] In the prior art, a circuit breaker protector usually has a switch room with built-in electrical components. When it is disconnected, an arc is likely to occur in the switch room due to the high voltage and current, which may easily cause an explosion. In order to deal with the explosion, a window connected to the switch room is usually provided on the circuit breaker protector, and a filter is embedded in the window. However, because the shock wave generated by the arc explosion is relatively large, the filter is easily deformed, or directly detaches from the window after being deformed too much, and the dirt particles generated in the switch room cannot be effectively intercepted, resulting in poor practicality. Utility Model Content

[0004] The embodiment of the utility model provides a high-performance mesh plate and a circuit breaker protector, aiming to solve the problem of poor practicality of the filter mesh plate used in the existing vehicle-mounted circuit breaker protector.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a high-performance mesh plate, comprising a plurality of meshes arranged in sequence; each mesh is pressed and bonded at the outer edge to form an annular clamping portion that can be embedded with the window and an air-permeable filter portion located between the annular clamping portions;

[0006] Wherein, along the arrangement direction of each mesh sheet, both ends of the air-permeable filter portion protrude the annular clamping portion.

[0007] In a possible implementation, each of the meshes has a rectangular structure.

[0008] In a possible implementation, along the vector direction from the switch room to the outside of the window, the apertures of the meshes on each mesh sheet decrease successively.

[0009] In a possible implementation manner, a protruding height of the air-permeable filter portion on one side facing the switch chamber is greater than a protruding height on the other side.

[0010] In a possible implementation, along the vector direction from the switch chamber to the outside of the window, the thickness of each mesh sheet decreases successively.

[0011] In a possible implementation, four mesh sheets are provided.

[0012] The utility model also includes a circuit breaker protector, including a shell and the above-mentioned high-performance mesh plate; the shell has a switch chamber inside, which has multiple windows connecting the switch chamber with the outside, and each of the windows is provided with an annular embedding groove; the high-performance mesh plates are provided with multiple, each of the high-performance mesh plates corresponds to each of the windows one by one, and are respectively embedded in the corresponding annular embedding grooves through the annular clamping parts.

[0013] The high-performance mesh plate provided by this implementation is formed by a plurality of meshes arranged in sequence and pressed together to form an annular clamping part and a breathable filter part. The annular clamping part can ensure the clamping with the window, and the breathable filter part can ensure the outflow of the expanded airflow. The breathable filter part protrudes from the annular clamping part, which can further enhance the ability to resist impacts from inside and outside and avoid its deformation. In addition, the plurality of meshes are pressed together to increase the thickness of the assembly, and at the same time, the aperture of the mesh can be reduced, thereby enhancing the structural strength while ensuring a good filtering effect and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of a high-performance mesh panel provided in an embodiment of the utility model;

[0015] Figure 2 A schematic diagram of the side structure of a high-performance mesh plate provided in an embodiment of the utility model;

[0016] Figure 3 A schematic cross-sectional view of a circuit breaker protector provided in an embodiment of the utility model;

[0017] Description of reference numerals:

[0018] 10. mesh; 11. annular clamping portion; 12. air-permeable filter portion; 20. housing; 21. switch chamber; 22. window. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Please also read Figure 1 and Figure 2 , the high performance mesh plate provided by the utility model is now described.

[0021] First, the filter sheet 10 used in the prior art is usually a single layer, and in order to ensure that it can withstand certain impacts, it usually has a certain thickness. However, when its thickness is large, its wire diameter is also coarse, which will inevitably lead to an increase in the aperture of the mesh, and thus the filtering effect cannot be guaranteed. Therefore, in order to ensure that it has a certain ability to resist impacts and a certain filtering effect, the thickness usually cannot be too large. As a result, its ability to resist impacts and filtering effects have great limitations, it is easy to deform, and it cannot effectively intercept dirt particles generated by explosions.

[0022] Therefore, a high-performance mesh plate is provided, comprising a plurality of mesh sheets 10 arranged in sequence. Each mesh sheet 10 is pressed and knitted at its outer edge to form an annular clamping portion 11 and an air-permeable filter portion 12 located between the annular clamping portions 11 .

[0023] Specifically, along the arrangement direction of each mesh sheet 10 , an annular clamping portion 11 protrudes from both ends of the air-permeable filter portion 12 .

[0024] Compared with the prior art, the high-performance mesh plate provided in this embodiment is formed by a plurality of mesh sheets 10 arranged in sequence and pressed together to form an annular clamping portion 11 and a breathable filter portion 12. The annular clamping portion 11 can ensure the clamping with the window 22, and the breathable filter portion 12 can ensure the outflow of the expanded airflow. The breathable filter portion 12 protrudes from the annular clamping portion 11, which can further enhance the ability to resist impacts from inside and outside and avoid its deformation. In addition, the plurality of mesh sheets 10 are pressed together to increase the thickness of the assembly, and at the same time, the aperture of the mesh can be reduced, thereby enhancing the structural strength while ensuring a good filtering effect, and having strong practicality.

[0025] The high-performance mesh plate provided in this embodiment has high performance because it has greater impact resistance and better filtering effect.

[0026] For ease of understanding, the mesh sheets 10 in this embodiment are arranged sequentially, and may be arranged sequentially with intervals or sequentially in close proximity.

[0027] It should also be explained that, regarding pressing and bonding, it is mainly to punch the edges of multiple meshes 10 on a punching machine, and in order to ensure that each mesh 10 can be pressed and bonded into one, the mesh 10 can be annealed before punching. This technology is well known to those skilled in the art and will not be elaborated here.

[0028] In some embodiments, the mesh 10 may be formed as follows: Figure 1 See the structure shown. Figure 1 , each mesh 10 has a rectangular shape structure.

[0029] The rectangular mesh 10 is easy to manufacture and also easy to manufacture the window 22 of the circuit breaker protector. Of course, the shape of the mesh 10 is not limited to a rectangle, and can also be a circle, a trapezoid, or other shapes, specifically adapted to the shape of the window 22.

[0030] In some embodiments, the mesh 10 may be formed as follows: Figure 2 See the structure shown. Figure 2 , along the vector direction from the switch room 21 to the outside of the window 22, the apertures of the mesh holes on each mesh 10 decrease successively. This structure can ensure the interception of dirt particles in layers, can ensure the filtering effect, and can also disperse the impact force to each mesh 10, with a simple structure and strong practicality.

[0031] In some embodiments, the air permeable filter portion 12 may be formed as follows: Figure 2 See the structure shown. Figure 2 The protruding height of the air-permeable filter portion 12 on one side toward the switch chamber 21 is greater than the protruding height on the other side.

[0032] Both ends of the air filter 12 are protruding, mainly to resist the impact force from inside and outside. The external impact force is much smaller than the impact force generated by the explosion in the switch room 21. Therefore, when the protruding height toward the switch room 21 is large, its structural strength will be correspondingly enhanced, thereby enhancing its ability to resist impact and avoiding deformation of the air filter 12. The structure is simple, easy to manufacture, and highly practical.

[0033] It should be noted that the protrusion of the air-permeable filter portion 12 is set as a raised portion, and a rounded corner or arc portion can be provided on the raised portion accordingly to ensure the guidance of the expanding airflow. At the same time, a rounded corner can also be provided at the connection between the raised portion and the annular clamping portion 11 to ensure the strength of the connection.

[0034] In some embodiments, the mesh 10 may be formed as follows: Figure 2 See the structure shown. Figure 2 , along the vector direction from the switch chamber 21 to the outside of the window 22, the thickness of each mesh 10 decreases successively.

[0035] The impact force on the side of the air-permeable filter part 12 close to the switch room 21 is relatively large, so the thickness of each mesh 10 decreases successively, which can ensure that the mesh 10 close to the switch room 21 has the greatest impact resistance ability, and then gradually decreases, which can further ensure the overall impact resistance effect.

[0036] In some embodiments, the mesh 10 may be formed as follows: Figure 2 See the structure shown. Figure 2 , there are four mesh sheets 10. The arrangement of four mesh sheets 10 can ensure that the thickness is relatively small, and also can ensure that it has a good filtering effect.

[0037] Specifically, the mesh apertures of each mesh 10 from inside to outside may be 450 μm, 330 μm, 300 μm and 103 μm, respectively. The air permeability of this combination is 25±10 dm 3 / min, which can better meet the usage requirements.

[0038] The embodiment of the present application also provides a circuit breaker protector, including a housing 20 and the above-mentioned high-performance mesh plate. The housing 20 has a switch chamber 21 inside, which has a plurality of windows 22 connecting the switch chamber 21 with the outside, and each window 22 is provided with an annular embedding groove. There are a plurality of high-performance mesh plates, each of which corresponds to each window 22 one by one, and is embedded in the corresponding annular embedding groove through the annular clamping portion 11.

[0039] Compared with the prior art, the circuit breaker protector provided in this embodiment is provided with a plurality of windows 22, and a high-performance mesh plate is provided at each window 22, which can ensure that the expansion fluid generated by the explosion in the switch room 21 flows out quickly, and at the same time can reduce the impact force of each high-performance mesh plate. In addition, the high-performance mesh plate used has strong impact resistance, can avoid separation from the window 22, has good filtering effect, strong safety, and strong practicality.

[0040] It should be noted that the annular mounting groove may be provided on the inner wall of the window 22 , which is a conventional setting for those skilled in the art and will not be elaborated herein.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. High performance stencil, characterized by: It comprises a plurality of mesh sheets arranged in sequence; each mesh sheet is pressed and bonded at the outer edge to form an annular clamping portion and a breathable filter portion located between the annular clamping portions; Wherein, along the arrangement direction of each mesh sheet, both ends of the air-permeable filter portion protrude the annular clamping portion.

2. The high performance stencil according to claim 1, characterized in that: Each of the mesh sheets has a rectangular shape structure.

3. The high performance stencil according to claim 1, characterized in that: Along the vector direction from the switch room to the outside of the window, the apertures of the meshes on each mesh sheet decrease successively.

4. The high performance stencil according to claim 3, characterized in that: The protruding height of the air-permeable filter portion on one side facing the switch chamber is greater than the protruding height on the other side.

5. The high performance stencil according to claim 3, characterized in that: Along the vector direction from the switch room to the outside of the window, the thickness of each mesh sheet decreases successively.

6. The high performance stencil according to claim 1, characterized in that: The mesh sheets are provided with four.

7. A circuit breaker protector, characterized in that: It comprises a shell and a high-performance mesh plate as described in any one of claims 1 to 6; the shell has a switch room inside, which has multiple windows connecting the switch room with the outside, and each of the windows is provided with an annular embedding groove; there are multiple high-performance mesh plates, each of which corresponds to each of the windows one by one, and are respectively embedded in the corresponding annular embedding grooves through the annular clamping parts.

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