CN216981686U - Fan housing structure of direct current motor - Google Patents
Fan housing structure of direct current motor Download PDFInfo
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- CN216981686U CN216981686U CN202123341644.1U CN202123341644U CN216981686U CN 216981686 U CN216981686 U CN 216981686U CN 202123341644 U CN202123341644 U CN 202123341644U CN 216981686 U CN216981686 U CN 216981686U
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- filter screen
- ring plate
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Abstract
The utility model discloses a fan cover structure of a direct current motor, which comprises a cover body internally provided with a filter screen plate, and further comprises a ventilation groove penetrating through the axle center of the cover body, wherein the outer wall of the cover body is sequentially provided with a protective cover plate and a ring plate which are coaxial with the ventilation groove, a ventilation space is reserved among the ventilation groove, the protective cover plate and the ring plate, the bottom of the ring plate is provided with a drain hole, the upper wall of the cover body is provided with a slot for installing the filter screen plate in a penetrating manner, the upper part and the lower part of the inner cavity wall of the cover body are respectively provided with a limiting clamping plate and a stabilizing insertion block for positioning the filter screen plate, the bottom of the stabilizing insertion block is also provided with an elastic clamping and sealing ring plate, and two ends of the elastic clamping and sealing ring plate extend to the side wall of the inner cavity of the cover body; the filter screen plate sequentially penetrates through the slot and the limiting clamping plate to be connected with the stable inserting block clamping groove. The utility model aims at solving the problems that the motor fan cover is inconvenient to install, the air holes formed in the fan cover are large, the dust filtering effect cannot be achieved and the like in the prior art, and has the advantages of water resistance, dust prevention, easiness in cleaning, capability of preventing external dust from entering the motor, convenience in installation and the like.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a wind cover structure of a direct current motor.
Background
Direct current motor in the electrical apparatus can produce the heat at the operation in-process, and the heat if gathering in direct current motor, can reduce the performance of motor and even make the motor burn out, for the emergence of avoiding this kind of condition, generally can install radiator fan for direct current motor in order to take away the inside heat of motor, consequently, just be equipped with corresponding business turn over wind gap on the motor, from safe angle, also consider simultaneously purpose such as dustproof, the installation will set up the fan housing in corresponding motor business turn over wind gap department, wind passes through inside the fan housing business turn over motor.
However, the motor fan cover in the prior art still has some defects, the fan cover for the existing motor is generally a circular steel plate fan cover or a plastic fan cover, and is provided with large air holes, so that a dust filtering effect cannot be achieved, the surface of the fan cover is directly sleeved on the outer wall of the end cover, the fan cover needs to be manually twisted to enable the fan cover to correspond to the end cover mounting hole, and the mounting is difficult in the process. In view of the above-mentioned problems, it is desirable to design a fan housing structure of a dc motor.
Aiming at the technical problems, the utility model discloses a wind cover structure of a direct current motor, which has the advantages of water resistance, dust prevention, easiness in cleaning, convenience in installation and the like, and external dust is prevented from entering the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a fan cover structure of a direct current motor, so as to solve the problems that the motor fan cover is inconvenient to install, the air holes formed in the fan cover are large, and the dust filtering effect cannot be achieved in the prior art. The utility model has the advantages of water resistance, dust prevention, easy cleaning, prevention of external dust from entering the motor, convenient installation and the like.
The utility model is realized by the following technical scheme: the utility model discloses a fan cover structure of a direct current motor, which comprises a cover body, a ventilation groove and a water drainage hole, wherein a filter screen plate is arranged in the cover body, the ventilation groove is arranged in the axis of the cover body in a penetrating manner, a protective cover plate and a ring plate piece which are coaxial with the ventilation groove are sequentially arranged on the outer wall of the cover body, a ventilation space is reserved among the ventilation groove, the protective cover plate and the ring plate piece, a water drainage hole is formed in the bottom of the ring plate piece, an insertion groove for installing the filter screen plate is arranged on the upper wall of the cover body in a penetrating manner, a limiting clamping plate and a stable insertion block for positioning the filter screen plate are respectively arranged on the upper part and the lower part of the inner cavity wall of the cover body, an elastic clamping and sealing ring plate is further arranged at the bottom of the stable insertion block, and two ends of the elastic clamping and sealing ring plate extend to the inner cavity side wall of the cover body; the filter screen plate sequentially passes through the slot and the limiting clamp plate to be connected with the stable insert block clamping groove, a dust storage groove is formed between the inner wall of the cover body and the stable insert block, and the filter screen plate comprises a fixed plate block, a filter screen piece arranged on the fixed plate block and rubber plates arranged on the two sides of the fixed plate block and the bottom edge of the fixed plate block.
Furthermore, in order to enable the fan cover assembly to have a rainwater-proof effect, the protective cover plate and the ring plate piece are fixed with the outer wall of the cover body, and the radius numerical value of the protective cover plate is respectively greater than the radius numerical values of the central hole grooves of the ventilation groove and the ring plate piece.
Further, in order to facilitate the increase of the sealing property of the joint, the dust is prevented from directly entering the motor from the joint, and the rubber plates on the two sides of the fixed plate are connected with the clamping grooves of the elastic clamping and sealing ring plates.
Furthermore, in order to fix the fan cover assembly with the external motor shell, the side of the slot is provided with a positioning hole formed in the outer wall of the cover body.
Furthermore, in order to facilitate the installation of the filter screen plate, the elastic clamping and sealing ring plate is made of rubber.
Furthermore, in order to better limit the filter screen plate, the positions of the slot, the limiting clamping plate and the stable inserting block correspond to each other.
Furthermore, in order to make the fan housing and the motor housing more fit and avoid noise, the edge of the inner cavity of the cover body is provided with an elastic sleeve ring.
The utility model has the following advantages:
(1) the rear end of the cover body is provided with the slot for placing the filter screen plate, the connecting position of the filter screen plate is tightly attached to the connecting surface of the slot, external dust can be prevented from entering the motor fan cover from the connecting position of the filter screen plate and the slot, the filter screen plate can be separated from the cover body, the filter screen plate is convenient to clean and replace, the surface of a filter screen piece in the filter screen plate adopts an organ pleat structure, the inlet and outlet air can be filtered, the dust is kept in the pleat while the filtering range is enlarged, and the filter screen has a good practical effect;
(2) the inner cavity of the cover body is provided with the stable insert block and the limiting clamp plate for positioning the filter screen plate, the stable insert block is internally provided with a cavity for collecting falling dust, and the stable insert block and the limiting clamp plate are arranged to help the filter screen plate resist the adsorption force generated by the rotation of the fan blade, so that the situation that the position of the filter screen plate moves in the filtering process is avoided;
(3) according to the utility model, the protective cover plate for shielding rainwater is arranged on the outer side of the ventilation groove of the cover body, and because the area of the protective cover plate is larger than that of the ventilation groove, a certain ventilation space is reserved between the ventilation groove and the protective cover plate through the supporting rod, and the ring plate piece fixed with the outer wall of the cover body is also arranged outside the protective cover plate, wind is injected into the ventilation space through the ventilation groove and the protective cover plate from the center of the ring plate and enters the cover body in the ventilation process, the center diameter of the ring plate is smaller than that of the protective cover plate, so that water can slide down along the surface of the protective cover plate and drop into the bottom of the ring plate piece and is discharged from the water discharge hole at the bottom of the ring plate piece, the motor can adapt to and correspond to various environments, the erosion of rainwater to the interior of the motor is reduced, the service life of the subsequent motor is prolonged, and the maintenance frequency is reduced.
Drawings
FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;
FIG. 2 is a schematic diagram of a filter screen structure according to the present invention;
FIG. 3 is a schematic view of the ring plate structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. a cover body; 2. an elastic collar; 3. positioning holes; 4. a slot; 5. a ventilation slot; 6. a ring plate member; 7. a shield plate; 8. a limiting clamp plate; 9. a filter screen plate; 10. stabilizing the insert block; 11. a drain hole; 12. an elastic clamping seal ring plate; 13. a screen member; 14. and (5) a rubber plate.
Detailed Description
In the description of the present invention, words similar to "front", "rear", "left", "right", etc. indicating directions or positional relationships are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
The utility model provides a technical scheme that: a fan cover structure of a direct current motor is disclosed, as shown in figures 1 to 5, and comprises a cover body 1 with a filter screen plate 9 inside and a ventilation groove 5 penetrating through the axis of the cover body 1, wherein the outer wall of the cover body 1 is sequentially provided with a protective cover plate 7 and a ring plate member 6 which are coaxial with the ventilation groove 5, a ventilation space is reserved between the ventilation groove 5, the protective cover plate 7 and the ring plate member 6, the bottom of the ring plate member 6 is provided with a drain hole 11, the upper wall of the cover body 1 is penetrated with a slot 4 for installing the filter screen plate 9, the upper and lower parts of the inner cavity wall of the cover body 1 are respectively provided with a limit clamp plate 8 and a stable insert block 10 for positioning the filter screen plate 9, the bottom of the stable insert block 10 is also provided with an elastic clamping ring plate 12, and two ends of the elastic clamping ring plate 12 extend to the side wall of the inner cavity of the cover body 1; the filter screen plate 9 sequentially passes through the slot 4 and the limiting clamp plate 8 to be connected with the clamping groove of the stable insert block 10, a dust storage groove is formed between the inner wall of the cover body 1 and the stable insert block 10, and the filter screen plate 9 comprises a fixed plate block, a filter screen piece 13 arranged on the fixed plate block and rubber plates 14 arranged on two sides of the fixed plate block and at the bottom edge of the fixed plate block.
As shown in fig. 1 and 3, the protective cover plate 7 and the ring plate 6 are fixed on the outer wall of the cover body 1, and the radius value of the protective cover plate 7 is respectively greater than the radius values of the central hole grooves of the ventilation groove 5 and the ring plate 6, so that the fan cover assembly has a rain-proof effect.
As shown in fig. 2, the rubber plates 14 at two sides of the fixed plate are connected with the clamping grooves of the elastic clamping and sealing ring plate 12, so that the sealing property of the joint is increased, and dust is prevented from directly entering the motor from the joint.
As shown in fig. 1 and 3, the side of the slot 4 is further provided with a positioning hole 3 formed in the outer wall of the cover body 1, so that the fan cover assembly is conveniently fixed to the external motor casing.
As shown in fig. 2, the elastic snap ring plate 12 is made of rubber, which facilitates the installation of the filter screen plate 9.
As shown in fig. 1, 2 and 4, the slots 4, the limiting clamping plates 8 and the stabilizing inserts 10 are all corresponding to each other, so as to better limit the filter screen plate 9.
As shown in fig. 1, an elastic collar 2 is disposed at the edge of the inner cavity of the cover 1, so that the fan housing and the motor housing are more attached to each other.
The principle of the utility model is as follows: a protective cover plate 7 for shielding rainwater is arranged outside the ventilation groove 5 of the cover body 1, a certain ventilation space is reserved between the ventilation groove 5 and the protective cover plate 7 through a supporting rod because the area of the protective cover plate 7 is larger than that of the ventilation groove 5, a ring plate piece 6 fixed with the outer wall of the cover body 1 is also arranged outside the protective cover plate 7, wind is poured into the ventilation space of the ventilation groove 5 and the protective cover plate 7 from the center of the ring plate to enter the cover body 1 in the ventilation process, the diameter of the center of the ring plate is smaller than that of the protective cover plate 7, water can slide down along the surface of the protective cover plate 7 and drop into the bottom of the ring plate piece 6, and is discharged from a water discharge hole 11 at the bottom of the ring plate piece 6, so that the motor can adapt to and correspond to various environments, the erosion of rainwater to the interior of the motor is reduced, the service life of a subsequent motor is prolonged, and the maintenance frequency is reduced; the inner cavity of the cover body 1 is provided with a stable insert block 10 and a limiting splint 8 which are used for positioning the filter screen plate 9, a cavity used for collecting falling dust is arranged in the stable insert block 10, and the arrangement of the stable insert block 10 and the limiting splint 8 can help the filter screen plate 9 to resist the adsorption force generated by the rotation of the fan blades, so that the situation that the position of the filter screen plate 9 moves in the filtering process is avoided; the slot 4 that is used for placing filter screen plate 9 is offered to the cover body 1 rear end, filter screen plate 9 hookup location is connected the face with slot 4 and is closely laminated, can avoid outside dust from filtering screen plate 9, inside both junctions of slot 4 get into the motor fan housing, and filter screen plate 9 can separate with the cover body 1, be convenient for filter screen plate 9 and clean and replace, filter 13 surfaces of filter screen spare in the screen plate 9 and adopt organ pleat structure, increase the filter range and stay the dust in the pleat simultaneously.
Claims (7)
1. A fan cover structure of a direct current motor is characterized by comprising a cover body, a ventilation groove and a water outlet hole, wherein a filter screen plate is arranged in the cover body, the ventilation groove is arranged in the axis of the cover body in a penetrating mode, a protective cover plate and a ring plate piece which are coaxial with the ventilation groove are sequentially arranged on the outer wall of the cover body, a ventilation space is reserved among the ventilation groove, the protective cover plate and the ring plate piece, a water outlet hole is formed in the bottom of the ring plate piece, an inserting groove for installing the filter screen plate is formed in the upper wall of the cover body in a penetrating mode, a limiting clamping plate and a stable inserting block are respectively arranged on the upper portion and the lower portion of the inner cavity wall of the cover body and used for positioning the filter screen plate, an elastic clamping and sealing ring plate is further arranged at the bottom of the stable inserting block, and two ends of the elastic clamping and sealing ring plate extend to the side wall of the inner cavity of the cover body; the filter screen plate sequentially penetrates through the slots and the limiting clamping plates to be connected with the stable inserting block clamping grooves, a dust storage groove is formed between the inner wall of the cover body and the stable inserting blocks, the filter screen plate comprises a fixed plate and a filter screen piece arranged on the fixed plate, and the filter screen plate further comprises rubber plates arranged on two sides of the fixed plate and at the bottom edge of the fixed plate.
2. The structure of a direct current motor according to claim 1, wherein the shield plate and the ring plate are fixed to the outer wall of the housing, and the radius of the shield plate is greater than the radius of the ventilation slot and the radius of the central hole of the ring plate.
3. The fan housing structure of a dc motor according to claim 1, wherein the rubber plates at both sides of the fixing plate are connected to the elastic snap ring plate snap grooves.
4. The fan housing structure of a dc motor according to claim 1, wherein the slot is further provided with a positioning hole formed in an outer wall of the housing at a side thereof.
5. The fan housing structure of a dc motor according to claim 1, wherein the elastic snap ring plate is made of rubber.
6. The fan housing structure of a dc motor according to claim 1, wherein the slots, the position-limiting clamping plates, and the position-stabilizing insertion blocks are all corresponding to each other.
7. The fan housing structure of a dc motor according to claim 1, wherein an elastic collar is disposed at an edge of the inner cavity of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123341644.1U CN216981686U (en) | 2021-12-27 | 2021-12-27 | Fan housing structure of direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123341644.1U CN216981686U (en) | 2021-12-27 | 2021-12-27 | Fan housing structure of direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216981686U true CN216981686U (en) | 2022-07-15 |
Family
ID=82346993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123341644.1U Active CN216981686U (en) | 2021-12-27 | 2021-12-27 | Fan housing structure of direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216981686U (en) |
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2021
- 2021-12-27 CN CN202123341644.1U patent/CN216981686U/en active Active
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