An electret filter
By introducing auxiliary mesh and automatic rolling and releasing mechanisms into the electret filter, the problem of the existing electret filter poor filtration of large particulate matter is solved, achieving more efficient air purification effect and convenient mesh replacement operation.
Patent Information
- Application Number
- CN202421394591.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing electret filter has weak filtration and removal ability of large particulate matter, resulting in poor air purification effect.
An electret filter is designed, and the auxiliary mesh is used to pre-filter the large particulate matter. Through the rolling and placement mechanism of the upper and lower movable shafts, the auxiliary mesh is automatically rewinding and replacement, so as to avoid blockage of large particles and reduced filtration effect.
It effectively improves the filtering capacity of large particulate matter, enhances the air purification effect, simplifies the mesh replacement operation, and improves the convenience of use and sealing of the equipment.
Smart Images
Figure CN222694296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile air-conditioning vent purifiers, in particular to an electret filter screen. Background Art
[0002] The car air-conditioning vent purifier is a device used to purify PM2.5, bacteria, dust and other harmful gases in the car. The car air purifier can not only purify the air but also effectively remove odors in the car. The internal electret filter of the car air-conditioning vent purifier is used to remove air particles.
[0003] However, the existing electret filter has a weak ability to filter and remove large particles, which can easily lead to poor air purification effects.
[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an electret filter is provided. Utility Model Content
[0005] The purpose of the utility model is to provide an electret filter to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of electret filter, comprising an outer frame and an auxiliary component, wherein storage boxes are installed at the upper and lower ends of the front side of the outer frame, and a connecting hole is opened on the surface of the storage box, and the auxiliary component for automatically replacing the filter is arranged inside the connecting hole, and the auxiliary component comprises an upper movable shaft, an auxiliary mesh and a lower movable shaft, an auxiliary mesh is arranged on the outside of the upper movable shaft, and the end of the lower end of the auxiliary mesh is connected to the lower movable shaft.
[0007] Furthermore, a disassembly plate is installed on the front side of the storage box, and the storage box and the connecting hole are an integrated structure.
[0008] Furthermore, positive and negative electrodes are arranged on the top of the outer frame, and a filter cavity is opened inside the outer frame.
[0009] Furthermore, the side of the outer frame is provided with a limiting component for limiting the side of the mesh, and the number of the limiting components is set to two groups.
[0010] Furthermore, the limiting assembly includes an adjusting slot and an electric push rod, and the electric push rod is installed inside the adjusting slot.
[0011] Furthermore, the limit assembly also includes a limit clamp and a gasket. The limit clamp is installed on the output end of the electric push rod, and the gasket is installed on the surface of the limit clamp.
[0012] Furthermore, the limiting clip is in an L-shape, and the limiting clip and the gasket fit tightly.
[0013] Furthermore, an electret plate is installed inside the filter cavity, and a discharge needle is arranged on the surface of the electret plate.
[0014] The utility model provides an electret filter screen, which has the following beneficial effects:
[0015] 1. The utility model uses an auxiliary mesh to pre-filter large particles in the gas, making up for the poor filtering effect of large particles in the electret filter. The upper movable shaft and the lower movable shaft are driven by their own motors respectively. The auxiliary mesh after use is rolled up and a new mesh is moved and installed through the winding and unwinding of the upper movable shaft and the lower movable shaft, avoiding the decrease in filtering effect caused by clogging of large particles, and the mesh replacement operation is simple.
[0016] 2. The utility model uses the adjustment groove for the installation of the electric push rod and the activity space of the limit clamp. The limit clamp plays a clamping and limiting role on both sides of the auxiliary mesh to prevent the side edges of the auxiliary mesh from warping and affecting the filtering effect. The rubber gasket increases the clamping and sealing effect of the limit clamp and increases the sealing degree. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of an electret filter screen of the utility model;
[0018] Figure 2 This is a schematic diagram of the auxiliary component structure of an electret filter of the utility model;
[0019] Figure 3 The utility model is a schematic diagram of the structure of a limiting component of an electret filter.
[0020] In the figure: 1. outer frame; 2. storage box; 3. connection hole; 4. auxiliary component; 401. upper movable shaft; 402. auxiliary mesh; 403. lower movable shaft; 5. disassembly and assembly plate; 6. positive and negative electrodes; 7. filter chamber; 8. limit assembly; 801. adjustment slot; 802. electric push rod; 803. limit clamp; 804. gasket; 9. electret plate; 10. discharge needle. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0022] like Figure 1 and Figure 2As shown, an electret filter comprises an outer frame 1 and an auxiliary component 4, a storage box 2 is installed at the upper and lower ends of the front side of the outer frame 1, the storage box 2 is used for the hidden installation of an upper movable shaft 401 and a lower movable shaft 403, and a connecting hole 3 is opened on the surface of the storage box 2, and the auxiliary component 4 for automatically replacing the filter is arranged inside the connecting hole 3, and the auxiliary component 4 comprises an upper movable shaft 401, an auxiliary mesh 402 and a lower movable shaft 403, and an auxiliary mesh 402 is arranged outside the upper movable shaft 401, and the auxiliary mesh 402 performs pre-filtration treatment on large particles in the gas to make up for The electret filter has a poor filtering effect on large particles, and the lower end of the auxiliary mesh 402 is connected to a lower movable shaft 403, and the upper movable shaft 401 and the lower movable shaft 403 are respectively driven by their own motors. The upper movable shaft 401 and the lower movable shaft 403 are rolled up and the new mesh is moved and installed through the winding and unwinding of the upper movable shaft 401 and the lower movable shaft 403 to avoid the clogging of large particles and the reduction of the filtering effect, and the mesh replacement operation is simple, a disassembly plate 5 is installed on the front side of the storage box 2, and the storage box 2 and the connecting hole 3 are an integrated structure, and positive and negative electrodes 6 are arranged on the top of the outer frame 1.
[0023] like Figure 3 As shown, a filter cavity 7 is provided inside the outer frame 1, and a limit assembly 8 for limiting the side position of the mesh is provided on the side of the outer frame 1, and the number of limit assemblies 8 is set in two groups, and the limit assembly 8 includes an adjustment groove 801 and an electric push rod 802, and the electric push rod 802 is installed inside the adjustment groove 801, and the adjustment groove 801 is used for the installation of the electric push rod 802 and the activity space of the limit clamp 803, and the limit assembly 8 also includes a limit clamp 803 and a gasket 804, and the output end of the electric push rod 802 is installed with a limit The positioning clamp 803 plays a role of clamping and limiting on both sides of the auxiliary mesh 402 to prevent the side edges of the auxiliary mesh 402 from warping and affecting the filtering effect, and a gasket 804 is installed on the surface of the limiting clamp 803. The gasket 804 made of rubber material increases the clamping and sealing effect of the limiting clamp 803 and increases the sealing degree. The limiting clamp 803 is L-shaped, and the limiting clamp 803 and the gasket 804 fit tightly. An electret plate 9 is installed inside the filter cavity 7, and a discharge needle 10 is provided on the surface of the electret plate 9.
[0024] In summary, the electret filter, first according to Figure 1-Figure 3The structure shown in the figure connects the positive and negative electrodes 6 to the high-voltage electrostatic generator, so that the discharge needle 10 on the electret plate 9 generates an electric field effect when releasing high-voltage static electricity, and filters the small particles in the gas. When the gas enters the interior of the filter chamber 7, the auxiliary mesh 402 pre-filters the large particles in the gas to make up for the poor filtering effect of the large particles in the electret filter. When the filtering effect of the auxiliary mesh 402 currently used is poor, the electric push rod 802 is first controlled to extend so that the limit clamp 803 and the surface of the auxiliary mesh 402 are separated, and the upper movable shaft 401 and The lower movable shaft 403 is driven by its own motor respectively, and the auxiliary mesh 402 after use is rolled up and a new mesh is moved and installed through the winding and unwinding of the upper movable shaft 401 and the lower movable shaft 403, so as to avoid the clogging of large particles and the reduction of the filtering effect, and the mesh replacement is easy to operate. After replacement, the electric push rod 802 is controlled to contract so that the limit clamp 803 moves backward to clamp and limit the two sides of the auxiliary mesh 402, so as to avoid the side warping of the auxiliary mesh 402 affecting the filtering effect. When clamping, the rubber gasket 804 increases the clamping and sealing effect of the limit clamp 803, thereby increasing the sealing degree.
[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. An electret filter, comprising an outer frame (1) and an auxiliary component (4), characterized in that: A storage box (2) is installed at the upper and lower ends of the front side of the outer frame (1), and a connection hole (3) is opened on the surface of the storage box (2). The auxiliary component (4) for automatically replacing the filter is arranged inside the connection hole (3), and the auxiliary component (4) includes an upper movable shaft (401), an auxiliary mesh (402) and a lower movable shaft (403). The auxiliary mesh (402) is arranged outside the upper movable shaft (401), and the lower end of the auxiliary mesh (402) is connected to the lower movable shaft (403).
2. The electret filter according to claim 1, characterized in that: A disassembly plate (5) is installed on the front side of the storage box (2), and the storage box (2) and the connection hole (3) are an integrated structure.
3. The electret filter according to claim 1, characterized in that: The top of the outer frame (1) is provided with positive and negative electrodes (6), and a filter cavity (7) is provided inside the outer frame (1).
4. The electret filter according to claim 1, characterized in that: The side of the outer frame (1) is provided with a limiting component (8) for limiting the side of the mesh, and the number of the limiting components (8) is set to two groups.
5. The electret filter according to claim 4, characterized in that: The position limiting assembly (8) comprises an adjusting slot (801) and an electric push rod (802), and the electric push rod (802) is installed inside the adjusting slot (801).
6. The electret filter according to claim 5, characterized in that: The limiting assembly (8) further comprises a limiting clamp (803) and a gasket (804); the limiting clamp (803) is installed at the output end of the electric push rod (802), and the gasket (804) is installed on the surface of the limiting clamp (803).
7. The electret filter according to claim 6, characterized in that: The shape of the limiting clip (803) is L-shaped, and the limiting clip (803) and the gasket (804) fit tightly.
8. The electret filter according to claim 3, characterized in that: An electret plate (9) is installed inside the filter cavity (7), and a discharge needle (10) is arranged on the surface of the electret plate (9).