Motor for fan of range hood

Abstract

The utility model discloses a range hood blower fan motor comprising a housing, the housing comprises a first housing and a second housing, the first housing is provided with a first edge, the second housing is provided with a second edge, and a fixing assembly is connected between the first edge and the second edge; a clamping piece is clamped between the first edge and the second edge, the clamping piece comprises a rubber column and pressing blocks, the first edge and the second edge are both provided with clamping grooves corresponding to the rubber column, the pressing blocks are symmetrically distributed on the rubber column, and the first edge and the second edge are clamped by the two pressing blocks. According to the utility model, the structure is novel, the first edge and the second edge are clamped through the clamping piece, the first edge and the second edge are kept to be tightly attached, the situation that the gap between the first edge and the second edge is enlarged, so that oil smoke easily enters a machine shell is prevented, and the sealing performance is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a motor for a range hood fan. Background Art

[0002] In the fan of the range hood, the motor is fixed to the fan volute through a bracket. The motor drives the wind wheel to rotate to form negative pressure, thereby achieving the suction and exhaust of oil smoke.

[0003] At present, the casing of this type of motor is mainly composed of two half shells connected by screws and nuts, which has the following defects: vibration will be generated during the operation of the motor, causing the nut to loosen, making the gap at the connection between the two half shells larger and the sealing worse. Oil smoke can enter the interior of the motor through the gap and cause rust, thereby reducing the service life.

[0004] The existing patent document (publication number: CN216134359U) discloses "a motor for a range hood", which also has the above-mentioned technical problems. Summary of the invention

[0005] The utility model aims to solve the above-mentioned technical problems existing in the prior art and provides a motor for a range hood fan, which has a novel structure, clamps the first edge and the second edge by a clamping piece, keeps the first edge and the second edge in close contact, prevents the gap between the two from becoming larger and causing oil smoke to easily enter the casing, and has good sealing performance.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A motor for a range hood fan comprises: a housing, characterized in that: the housing comprises a first shell and a second shell, the first shell is provided with a first edge, the second shell is provided with a second edge, a fixing assembly is connected between the first edge and the second edge; a clamp is clamped between the first edge and the second edge, the clamp comprises a rubber column and a pressure block, the first edge and the second edge are both provided with a slot corresponding to the rubber column, the pressure blocks are symmetrically distributed on the rubber column, and the two pressure blocks clamp the first edge and the second edge. The motor has a novel structure, the first edge and the second edge are clamped by the clamp, the first edge and the second edge are kept in close contact with each other, the gap between the two edges is prevented from becoming larger, and the oil smoke is easily entered into the housing, and the sealing performance is good.

[0008] Furthermore, the distance between the two pressing blocks is a, the sum of the thickness of the first edge and the thickness of the second edge is b, a=b, one pressing block is close to the first edge, and the other pressing block is close to the second edge. The friction is large, the clamp cannot freely detach from the casing, and the installation is reliable.

[0009] Furthermore, the width of the card slot gradually increases from the opening inward, the cross-sectional diameter of the rubber column is larger than the minimum width of the card slot, and the cross-sectional diameter of the rubber column is not larger than the maximum width of the card slot. After the rubber column is installed in the card slot, it is continuously squeezed, in close contact, with high friction, and the rubber column is not easy to freely fall out of the card slot, and the installation reliability is high.

[0010] Furthermore, a threading hole is provided on the casing, and a rubber protective cover is provided on the threading hole. The power cord of the motor passes through the middle hole of the rubber protective cover. The rubber protective cover protects the power cord and prevents the power cord from being damaged by repeated friction with the hole wall of the threading hole.

[0011] Furthermore, both ends of the rubber protective sleeve are provided with limiting parts, and the cross-sectional diameter of the limiting part is larger than the cross-sectional diameter of the threading hole. The rubber protective sleeve is detachable and replaceable, which is flexible and convenient. After the rubber protective sleeve is squeezed to deform, the limiting part on one side can pass through the threading hole. After loosening, the limiting part cannot pass through the threading hole freely, thereby realizing the limitation of the rubber protective sleeve on the casing.

[0012] Furthermore, a grounding bolt is connected to the casing, and a grounding wire is connected to the grounding bolt, which plays an insulating role for the casing and improves safety.

[0013] Furthermore, the grounding bolt is connected to one end of the grounding wire through the wire clamp, which is reliably fixed, thereby improving the connection strength of the grounding wire and preventing the grounding wire from twisting, shaking and freely falling out.

[0014] Furthermore, the rubber column is provided with a central through hole, which provides a deformation space for the rubber column, facilitates the deformation of the rubber column after extrusion, and reduces the difficulty of installing the rubber column into the card slot.

[0015] Furthermore, the fixing assembly includes a fastening bolt and a nut. The fastening bolt passes through the first edge and the second edge. The nut is connected to the fastening bolt. The nut cooperates with the end of the fastening bolt to clamp the first edge and the second edge. The fixation is reliable, the disassembly and assembly are convenient, and the device is flexible and convenient.

[0016] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0017] The clamp is easy to assemble and disassemble and can be used immediately after installation. During installation, the rubber column is inserted into the slot, and the rubber column is deformed by the extrusion, thereby increasing the contact area of ​​the inner wall of the slot, providing close contact and high friction. The rubber column is not easy to freely escape from the slot, and the installation reliability is high. It replaces the bolt fixing method and is quick and convenient. One pressing block is close to the first edge, and the other pressing block is close to the second edge, so that the two pressing blocks clamp the first edge and the second edge, provide close contact and high friction, and the clamp cannot freely escape from the casing, and the installation is reliable. During the operation of the motor, vibration will be generated, which will cause the nut to loosen, and the first edge and the second edge will no longer fit tightly, and a gap will be generated at the connection between the two. Oil smoke can enter the casing through the gap. The first edge and the second edge are clamped by the clamp to keep the first edge and the second edge in close contact, thereby preventing the gap from becoming larger and improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the motor for the range hood fan of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the connection between the clamping fixture and the first edge and the second edge in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping fixture in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the card slot in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the rubber protective sleeve in the utility model.

[0024] In the figure: 1- housing; 2- motor shaft; 3- first housing; 4- second housing; 5- first edge; 6- second edge; 7- fastening bolt; 8- nut; 9- slot; 10- clamp; 11- rubber column; 12- pressure block; 13- center through hole; 14- rubber protective cover; 15- limit part; 16- grounding bolt; 17- grounding wire; 18- wire clamp. DETAILED DESCRIPTION

[0025] like Figures 1 to 5 As shown, the utility model is a motor for a range hood fan, comprising: a casing 1, a rotor, a stator and a motor shaft 2. The stator is arranged in the casing 1, the stator is rotatably connected to the rotor, the motor shaft 2 is arranged on the rotor, the motor shaft 2 passes through the casing 1, and a coil is wound on the stator. The above structure belongs to the prior art and will not be repeated here.

[0026] The casing 1 includes a first shell 3 and a second shell 4. The first shell 3 is provided with a first edge 5, and the second shell 4 is provided with a second edge 6. A fixing component is connected between the first edge 5 and the second edge 6. The fixing component includes a fastening bolt 7 and a nut 8. The fastening bolt 7 passes through the first edge 5 and the second edge 6. The nut 8 is connected to the fastening bolt 7. The nut 8 cooperates with the end of the fastening bolt to clamp the first edge 5 and the second edge 6. The fixation is reliable, the disassembly and assembly are convenient, and the device is flexible and convenient.

[0027] The first edge 5 and the second edge 6 are both provided with a card slot 9, and a clamping piece 10 is clamped on the card slot 9. The clamping piece 10 includes a rubber column 11 and a pressure block 12. The card slot 9 corresponds to the rubber column 11, and the pressure blocks 12 are symmetrically distributed on the rubber column 11. The width of the card slot 9 gradually increases from the opening inward, the cross-sectional diameter of the rubber column 11 is larger than the minimum width of the card slot 9, and the cross-sectional diameter of the rubber column 11 is not larger than the maximum width of the card slot 9. The distance between the two pressure blocks 12 is a, and the sum of the thickness of the first edge 5 and the thickness of the second edge 6 is b, and a=b.

[0028] The clamping piece 10 is easy to assemble and disassemble, and can be used at any time. During installation, the rubber column 11 is inserted into the card slot 9, and the rubber column 11 is deformed by the extrusion, which increases the contact area of ​​the inner wall of the card slot 9, is in close contact, and has a large friction force. The rubber column 11 is not easy to freely escape from the card slot 9, and the installation reliability is high. It replaces the bolt fixing method and is fast and convenient; one pressing block 12 is close to the first edge 5, and the other pressing block 12 is close to the second edge 6, so that the two pressing blocks 12 clamp the first edge 5 and the second edge 6, which are in close contact and have a large friction force. The clamping piece 10 cannot freely detach from the casing 1, and the installation is reliable; vibration will be generated during the operation of the motor, which will cause the nut 8 to loosen, and the first edge 5 and the second edge 6 will no longer fit tightly, and a gap will be generated at the connection between the two. Oil smoke can enter the casing 1 from the gap, and the first edge 5 and the second edge 6 are clamped by the clamping piece 10 to keep the first edge 5 and the second edge 6 in close contact, so as to prevent the gap from becoming larger and improve the sealing performance.

[0029] The rubber column 11 is provided with a central through hole 13 , which provides a deformation space for the rubber column 11 , facilitates the deformation of the rubber column 11 after being squeezed, and reduces the difficulty of installing the rubber column 11 into the card slot 9 .

[0030] The second housing 4 is provided with a threading hole, and a rubber protective cover 14 is provided on the threading hole. The power line of the motor passes through the middle hole of the rubber protective cover 14. The rubber protective cover 14 protects the power line and prevents the power line from being damaged by repeated friction with the hole wall of the threading hole.

[0031] Both ends of the rubber protective sleeve 14 are provided with a limiting portion 15, and the cross-sectional diameter of the limiting portion 15 is larger than the cross-sectional diameter of the threading hole. The rubber protective sleeve 14 is detachable and replaceable, which is flexible and convenient. After squeezing the rubber protective sleeve 14 to deform, the limiting portion 15 on one side can pass through the threading hole. After loosening, the limiting portion 15 cannot pass through the threading hole freely, so that the rubber protective sleeve 14 is limited on the casing 1.

[0032] A grounding bolt 16 is connected to the casing 1, and the grounding bolt 16 is connected to the grounding wire 17 through a wire clamp 18, which plays an insulating role in the casing 1 and improves safety; the grounding wire 17 is reliably fixed, which improves the connection strength of the grounding wire 17 and prevents the grounding wire 17 from twisting, shaking and freely falling out.

[0033] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. Motor for range hood fan, including: chassis, Features: The casing includes a first shell and a second shell, the first shell is provided with a first edge, the second shell is provided with a second edge, and a fixing component is connected between the first edge and the second edge; a clamping piece is clamped between the first edge and the second edge, and the clamping piece includes a rubber column and a pressure block, the first edge and the second edge are both provided with a slot corresponding to the rubber column, the pressure blocks are symmetrically distributed on the rubber column, and the two pressure blocks clamp the first edge and the second edge.

2. The motor for the range hood fan according to claim 1, characterized in that: The distance between the two pressing blocks is a, the sum of the thickness of the first edge and the thickness of the second edge is b, and a=b.

3. The motor for the range hood fan according to claim 1, characterized in that: The width of the card slot gradually increases from the opening inwards, the cross-sectional diameter of the rubber column is larger than the minimum width of the card slot, and the cross-sectional diameter of the rubber column is not larger than the maximum width of the card slot.

4. The motor for a range hood fan according to claim 1, characterized in that: The casing is provided with a threading hole, and the threading hole is provided with a rubber protective sleeve.

5. The motor for the range hood fan according to claim 4, characterized in that: Both ends of the rubber protective sleeve are provided with limiting parts, and the cross-sectional diameter of the limiting parts is larger than the cross-sectional diameter of the threading hole, so that the rubber protective sleeve can be detachably connected to the housing in a limiting manner.

6. The motor for a range hood fan according to claim 1, characterized in that: The housing is connected with a grounding bolt, and the grounding bolt is connected with a grounding wire.

7. The motor for the range hood fan according to claim 6, characterized in that: The grounding bolt is connected to one end of the grounding wire through a wire clamp.

8. The motor for a range hood fan according to claim 1, characterized in that: The rubber column is provided with a central through hole.

9. The motor for a range hood fan according to claim 1, characterized in that: The fixing assembly includes a fastening bolt and a nut. The fastening bolt passes through the first edge and the second edge. The nut is connected to the fastening bolt. The nut cooperates with the end of the fastening bolt to clamp the first edge and the second edge.

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