Micro-electrostatic filter device insulating block

Abstract

The utility model provides a kind of micro electrostatic filtration equipment insulating block, including insulating block, electric appliance fixed plate and limit strip, the insulating block includes outer edge and pedestal, the pedestal bottom sidewall fixed outer edge, the pedestal left and right sidewall are equipped with hard buckle, the hard buckle bottom height is higher than the height of outer edge top surface, the insulating block bottom is equipped with at least one pearl installation groove, pearl installation groove is equipped with pearl, the electric appliance fixed plate is fixed in micro electrostatic filter top, the electric appliance fixed plate bottom is equipped with at least one mounting hole, the insulating block is clamped in mounting hole, the horizontal distance between the outermost end of hard buckle is greater than the width of mounting hole front end, the limit strip is fixed in electric appliance fixed plate top by rivet, the horizontal distance of limit strip foremost end and mounting hole foremost end is equal to pedestal length.The utility model rivet does not contact with insulating block, and distance is far, avoid the risk of discharge and flashover when long-term operation dust accumulation, water mark produces.

Description

Technical Field

[0001] This utility model relates to the field of micro electrostatic filtration equipment technology, and in particular to an insulating block for micro electrostatic filtration equipment. Background Technology

[0002] Micro-electrostatic filtration equipment is mostly used in ventilation coil duct purification applications. Existing micro-electrostatic filtration equipment is mostly composed of insulating blocks, contact springs, and electrical fixing plates. The fixing method is mostly direct fixing with rivets. However, the insulating blocks are close to the rivets. With long-term use, dust accumulation and water marks are generated, which makes it easier to form discharge and flashover, leading to the burning of the insulating blocks. Summary of the Invention

[0003] To address the above problems, this utility model provides an insulating block for a micro-electrostatic filtration device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an insulating block for a micro electrostatic filtration device, comprising an insulating block, an electrical fixing plate, and a limiting strip. The insulating block includes an outer edge and a base. The bottom sidewall of the base is fixed to the outer edge. Both the left and right sidewalls of the base are provided with rigid buckles. The bottom height of the rigid buckles is higher than the top surface height of the outer edge. The bottom of the insulating block is provided with at least one ball-bearing mounting groove, and a ball-bearing is provided in the ball-bearing mounting groove. The electrical fixing plate is fixed to the top of the micro electrostatic filter. The bottom of the electrical fixing plate is provided with at least one mounting hole, and the insulating block is fitted into the mounting hole. The horizontal distance between the outermost ends of the rigid buckles is greater than the width of the front end of the mounting hole. The limiting strip is fixed to the top of the electrical fixing plate by rivets. The horizontal distance between the front end of the limiting strip and the front end of the mounting hole is equal to the length of the base.

[0005] Preferably, the ball-bearing mounting groove is a cylinder, and a fixing hole is provided at the bottom of the ball-bearing mounting groove. The fixing hole is also a cylinder and penetrates the bottom of the ball-bearing mounting groove and the top surface of the base.

[0006] Preferably, the upper part of the ball is cylindrical and the lower part is hemispherical. The top of the ball is provided with a fixing groove. The fixing groove is cylindrical and its diameter is equal to the diameter of the fixing hole. The outer diameter of the upper part of the ball is equal to the diameter of the ball mounting groove. The ball and the insulating block are fixed by rivets. The rivets pass through the fixing hole and extend into the fixing groove.

[0007] Preferably, the rigid buckle is sheet-shaped, the fixed end of the rigid buckle is connected to the side wall of the base, the free end of the rigid buckle faces outward and forms an angle with the side wall of the base, the fixed end of the rigid buckle is located above the free end of the rigid buckle, and the distance between the bottom end of the rigid buckle and the bottom surface of the base is equal to the thickness of the electrical appliance fixing plate.

[0008] Preferably, the width of the first half of the mounting hole is less than the width of the second half of the mounting hole, the width of the first half of the mounting hole is equal to the width of the base, the length of the mounting hole is greater than the length of the base, and the length of the first half of the mounting hole 11 is equal to the horizontal distance from the front end of the base 44 to the rear end of the rigid buckle 7.

[0009] Preferably, the electrical appliance fixing plate is provided with a plurality of first through holes, and the limiting strip is provided with the same number of second through holes as the first through holes. The diameter of the first through holes is equal to the diameter of the second through holes, and the horizontal distance between the center of the first through hole and the rear end of the base is equal to the horizontal distance between the center of the second through hole and the rear end of the base. The rivets pass through the first through holes and the second through holes to fix the electrical appliance fixing plate and the limiting strip.

[0010] Preferably, the outer wall of the free end of the rigid buckle is provided with an inclined surface, and the angle between the inclined surface and the outer wall of the rigid buckle is greater than 90°.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a limiting strip to install rivets, which do not contact the insulating block and are at a greater distance, avoiding the risk of discharge and flashover when dust accumulates and water marks occur during long-term operation; the mounting hole method is equipped with a rigid buckle, which is simple and quick, and avoids the risk of the telescopic buckle being easily cut and damaged by the sharp edge of the sheet metal hole; the insulating block has no rivet holes, and there is no rigid connection between the insulating block and the electrical fixing plate, solving the problem of easy cracking when riveting; this utility model makes the assembly of micro electrostatic filters more efficient and effectively extends the service life of micro electrostatic filtration equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the insulating block of the micro-electrostatic filtration device of this utility model.

[0013] Figure 2 This is a schematic diagram of the installation structure of the insulating block of the micro-electrostatic filtration device of this utility model.

[0014] Figure 3 This is a schematic diagram of the insulating block structure of the micro electrostatic filtration device of this utility model.

[0015] Figure 4 This is a perspective view of the insulating block of the micro-electrostatic filtration device of this utility model.

[0016] Figure 5 This is a schematic diagram of the insulating block structure of the micro electrostatic filtration device of this utility model without the contact beads installed.

[0017] Figure 6 This is a schematic diagram of the contact ball structure of the insulating block in the micro-electrostatic filtration device of this utility model.

[0018] Figure 7 This is a top view of the electrical fixing plate of the insulating block of the micro-electrostatic filtration device of this utility model.

[0019] Figure descriptions: 1. Electrical fixing plate, 11. Mounting hole, 12. First through hole, 2. Limiting strip, 21. Second through hole, 3. Rivet, 4. Insulating block, 41. Contact ball mounting groove, 42. Fixing hole, 43. Outer edge, 44. Base, 5. Contact ball, 51. Fixing groove, 6. Micro electrostatic filter, 7. Rigid buckle. Detailed Implementation

[0020] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0021] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 7 An embodiment of the present invention provides an insulating block for a micro electrostatic filter device, comprising an insulating block 4, an electrical fixing plate 1, and a limiting strip 2. The insulating block 4 includes an outer edge 43 and a base 44. The bottom side wall of the base 44 is fixed to the outer edge 43. The left and right side walls of the base 44 are provided with rigid buckles 7. The bottom height of the rigid buckles 7 is higher than the top surface height of the outer edge 43. The bottom of the insulating block 4 is provided with at least one ball-bearing mounting groove 41, and a ball 5 is provided in the ball-bearing mounting groove 41. The electrical fixing plate 1 is fixed to the top of the micro electrostatic filter 6. The bottom of the electrical fixing plate 1 is provided with at least one mounting hole 11, and the insulating block 4 is engaged in the mounting hole 11. The horizontal distance between the outermost ends of the rigid buckles 7 is greater than the front width of the mounting hole 11. The limiting strip 2 is fixed to the top of the electrical fixing plate 1 by rivets 3. The horizontal distance between the front end of the limiting strip 2 and the front end of the mounting hole 11 is equal to the length of the base 44.

[0022] The rivet 3 is installed on the limiting strip 2, and does not contact the insulating block 4. The distance between them is far to avoid the risk of discharge and flashover when dust accumulates and water marks are generated during long-term operation. The mounting hole 11 and the rigid buckle 7 facilitate installation. The insulating block 4 is integrally injection molded without rivet holes. The insulating block 4 is not rigidly connected to the electrical fixing plate 1, which solves the problem of easy cracking when riveting.

[0023] In one embodiment, such as Figure 4 and Figure 5 As shown, the ball bearing mounting groove 41 is a cylinder, and a fixing hole 42 is provided at the bottom of the ball bearing mounting groove 41. The fixing hole 42 is a cylinder and passes through the bottom of the ball bearing mounting groove 41 and the top surface of the base 44. The ball bearing mounting groove 41 facilitates the installation and replacement of the ball bearing 5.

[0024] In one embodiment, such as Figure 4 and Figure 6As shown, the upper part of the ball 5 is cylindrical and the lower part is hemispherical. The top of the ball 5 is provided with a fixing groove 51. The fixing groove 51 is cylindrical and its diameter is equal to the diameter of the fixing hole 42. The outer diameter of the upper part of the ball 5 is equal to the diameter of the ball mounting groove 41. The ball 5 and the insulating block 4 are fixed by rivets 7. The rivets 7 pass through the fixing hole 42 and extend into the fixing groove 51. The ball 5 forms a relatively stable physical contact, ensuring good surface treatment and appropriate contact pressure, and has a stronger ability to resist electromagnetic interference.

[0025] In one embodiment, such as Figure 3 and Figure 5 As shown, the rigid buckle 7 is sheet-shaped. The fixed end of the rigid buckle 7 is connected to the side wall of the base 44, and the free end of the rigid buckle 7 faces outward and forms an angle with the side wall of the base 44. The fixed end of the rigid buckle 7 is located above the free end of the rigid buckle 7. The distance between the bottom end of the rigid buckle 7 and the bottom surface of the base 44 is equal to the thickness of the electrical fixing plate 1. The rigid buckle 7 is easy to install and avoids the risk of the telescopic buckle being easily cut and damaged by the sharp edge of the sheet metal hole.

[0026] In one embodiment, such as Figure 2 and Figure 7 As shown, the width of the first half of the mounting hole 11 is less than the width of the second half of the mounting hole 11. The width of the first half of the mounting hole 11 is equal to the width of the base 44. The length of the mounting hole 11 is greater than the length of the base 44. The length of the first half of the mounting hole 11 is equal to the horizontal distance from the front end of the base 44 to the rear end of the rigid buckle 7, which facilitates the support of the rigid buckle 7 and the fixing of the insulating block 4.

[0027] In one embodiment, such as Figure 2 and Figure 7 As shown, the electrical fixing plate 1 is provided with a plurality of first through holes 12, and the limiting strip 2 is provided with the same number of second through holes 21 as the first through holes 12. The diameter of the first through holes 12 is equal to the diameter of the second through holes 21. The horizontal distance between the center of the first through hole 12 and the rear end of the base 44 is equal to the horizontal distance between the center of the second through hole 21 and the rear end of the base 44. The rivet 3 passes through the first through holes 12 and the second through holes 21 to fix the electrical fixing plate 1 and the limiting strip 2. The rivet 3 fixes the electrical fixing plate 1 and the limiting strip 2 together. The rivet 3 does not contact the insulating block 4 and is far away from it to avoid the risk of discharge and flashover when dust accumulates and water marks are generated during long-term operation.

[0028] In one embodiment, such as Figure 3 and Figure 5 As shown, the outer wall of the free end of the rigid buckle 7 is provided with a bevel, and the angle between the bevel and the outer wall of the rigid buckle 7 is greater than 90°. The bevel makes the installation of the insulating block 4 smoother, making the assembly of the micro electrostatic filter more efficient.

[0029] Usage: Combine Figures 1-7As shown, insert the ball 5 into the ball mounting groove 41 and fix it with the rivet 3. Align the insulating block 4 with the mounting hole 11 and push it upward until the rigid buckle 7 is completely above the electrical fixing plate 1. Then push the insulating block 4 forward to the bottom and align the second through hole 21 on the limiting strip 2 with the first through hole 12 on the electrical fixing plate 1 and fix it with the rivet. Fix the electrical fixing plate 1 on the top of the micro electrostatic filter 6.

[0030] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. An insulating block for a micro-electrostatic filtration device, characterized in that: The device includes an insulating block (4), an electrical fixing plate (1), and a limiting strip (2). The insulating block (4) includes an outer edge (43) and a base (44). The bottom side wall of the base (44) is fixed to the outer edge (43). The left and right side walls of the base (44) are provided with rigid buckles (7). The bottom height of the rigid buckles (7) is higher than the top surface height of the outer edge (43). The bottom of the insulating block (4) is provided with at least one ball-bearing mounting groove (41). A ball-bearing ball (5) is provided in the ball-bearing mounting groove (41). The appliance fixing plate (1) is fixed on the top of the micro electrostatic filter (6). The bottom of the appliance fixing plate (1) is provided with at least one mounting hole (11). The insulating block (4) is inserted into the mounting hole (11). The horizontal distance between the outermost ends of the rigid buckle (7) is greater than the width of the front end of the mounting hole (11). The limiting strip (2) is fixed on the top of the appliance fixing plate (1) by rivets (3). The horizontal distance between the front end of the limiting strip (2) and the front end of the mounting hole (11) is equal to the length of the base (44).

2. The insulating block for the micro-electrostatic filtration device as described in claim 1, characterized in that: The ball-mounting groove (41) is a cylinder, and the bottom of the ball-mounting groove (41) is provided with a fixing hole (42). The fixing hole (42) is a cylinder and passes through the bottom of the ball-mounting groove (41) and the top surface of the base (44).

3. The insulating block for the micro-electrostatic filtration device as described in claim 1, characterized in that: The upper part of the ball (5) is cylindrical and the lower part is hemispherical. The top of the ball (5) is provided with a fixing groove (51). The fixing groove (51) is cylindrical and its diameter is equal to the diameter of the fixing hole (42). The outer diameter of the upper part of the ball (5) is equal to the diameter of the ball mounting groove (41). The ball (5) and the insulating block (4) are fixed by rivets (3). The rivets (3) pass through the fixing hole (42) and extend into the fixing groove (51).

4. The insulating block for a micro-electrostatic filtration device as described in claim 1, characterized in that: The rigid buckle (7) is sheet-shaped. The fixed end of the rigid buckle (7) is connected to the side wall of the base (44). The free end of the rigid buckle (7) faces outward and forms an angle with the side wall of the base (44). The fixed end of the rigid buckle (7) is located above the free end of the rigid buckle (7). The distance between the bottom end of the rigid buckle (7) and the bottom surface of the base (44) is equal to the thickness of the electrical fixing plate (1).

5. The insulating block for a micro-electrostatic filtration device as described in claim 1, characterized in that: The width of the first half of the mounting hole (11) is less than the width of the second half of the mounting hole (11), the width of the first half of the mounting hole (11) is equal to the width of the base (44), the length of the mounting hole (11) is greater than the length of the base (44), and the length of the first half of the mounting hole (11) is equal to the horizontal distance from the front end of the base (44) to the rear end of the rigid buckle (7).

6. The insulating block for a micro-electrostatic filtration device as described in claim 1, characterized in that: The electrical appliance fixing plate (1) is provided with a plurality of first through holes (12), and the limiting strip (2) is provided with the same number of second through holes (21) as the first through holes (12). The diameter of the first through hole (12) is equal to the diameter of the second through hole (21). The horizontal distance between the center of the first through hole (12) and the rear end of the base (44) is equal to the horizontal distance between the center of the second through hole (21) and the rear end of the base (44). The rivet (3) passes through the first through hole (12) and the second through hole (21) to fix the electrical appliance fixing plate (1) and the limiting strip (2).

7. The insulating block for a micro-electrostatic filtration device as described in claim 4, characterized in that: The outer wall of the free end of the rigid buckle (7) is provided with a slope, and the angle between the slope and the outer wall of the rigid buckle (7) is greater than 90°.

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