CN219351435U - Wire bushing structure for motor and motor - Google Patents
Wire bushing structure for motor and motor Download PDFInfo
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- CN219351435U CN219351435U CN202320218883.8U CN202320218883U CN219351435U CN 219351435 U CN219351435 U CN 219351435U CN 202320218883 U CN202320218883 U CN 202320218883U CN 219351435 U CN219351435 U CN 219351435U
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- wire
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- bushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a wire bushing structure for a motor and the motor, which comprise a motor end cover, a bushing body and a wire, wherein the bushing body is fixed with the motor end cover, one end of the wire sequentially penetrates through the bushing body and the motor end cover, and the bushing body is of an L-shaped structure, so that the wire stretches out of the bushing body after being bent in the bushing body. The utility model provides a wire bushing structure for a motor and the motor, which can lead wires to be bent in a bushing body, and can avoid gaps from being generated at positions of the wires extending out of the bushing body when the wires are bent, so that ants and rainwater are not easy to enter the motor through the positions of the wires extending out of the bushing body.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a wire bushing structure for a motor and the motor.
Background
In order to prevent the lead wire from interfering with the rotor, the outer skin of the lead wire is also avoided from being scratched by corners on the shell, the lead wire sleeve is adopted at the outlet end of most of the existing motors to limit and protect the lead wire, but the lead wire sleeve is generally made of plastic materials, a large gap exists between the plastic lead wire sleeve and the motor shell in cooperation, and when the motor is placed in an environment with waterproof requirements such as outdoors or in a wet environment, the service life of the motor is influenced by the large gap between the lead wire sleeve and the motor shell, and even safety accidents can be caused. Some outdoor motors are also provided with wire bushings for waterproofing between the lead wire sleeve and the motor housing, preventing water from flowing into the motor through the gap between the rubber wire sleeve and the motor housing. However, the existing wire bushing structure is usually of a straight-through design, in order to meet the installation requirement, the wire needs to be bent after extending out of the wire bushing, and gaps are easily formed at positions, extending out of the wire bushing, of the wire when the wire is bent, so that ants and rainwater enter the motor through the gaps, conductive parts in the motor are damaged, and the motor cannot work and run.
Disclosure of Invention
The utility model provides a wire bushing structure for a motor, which aims to overcome the defect that in the prior art, a wire bushing structure is usually of a straight-through design, and gaps are easily generated at positions, where wires extend out of the wire bushing, when wires are bent, so that ants and rainwater enter the motor through the gaps.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a wire bush structure for motor, includes motor end cover, bush body and wire, the bush body is fixed with the motor end cover, the one end of wire passes bush body and motor end cover in proper order, the bush body is L type structure to make the wire stretch out the bush body after buckling in the bush body.
In the above technical scheme, the lining body is of an L-shaped structure, so that the lead can be bent inside the lining body, but not at the position of extending out of the lining body, and the gap can be formed at the position of extending out of the lining body when the lead is bent, so that ants and rainwater are not easy to enter the motor through the position of extending out of the lining body. And the bushing body is of an L-shaped structure, so that the size of a lead at the end part of the motor in the motor shaft direction is reduced, and the arrangement of the motor is facilitated.
Preferably, the bushing body comprises a connecting part connected with the motor end cover, a plurality of first annular protrusions which are sequentially arranged are arranged on the outer side wall of the connecting part, a through hole matched with the connecting part is formed in the motor end cover, and the first annular protrusions are in interference fit with the side wall of the through hole.
In the above technical scheme, the connecting portion is embedded into the motor end cover, and the thickness of the side wall of the through hole is matched with the first annular protrusions, so that the first annular protrusions can simultaneously abut against the side wall of the through hole. The side walls of the first annular protrusions and the through holes are in interference fit, a multi-channel sealing structure can be formed, the sealing effect between the bushing body and the motor end cover is better, and even if part of the first annular protrusions lose the sealing effect, the sealing effect can be kept under the action of the rest first annular protrusions, so that the bushing has better termite-proof, dust-proof and waterproof effects.
Preferably, the lower end of the connecting part is provided with a fixed extension edge, the outer diameter of the fixed extension edge is larger than the diameter of the through hole, and the fixed extension edge is arranged inside the motor end cover and abuts against the inner end surface of the motor end cover. In the technical scheme, the fixed extension can prevent the bushing body from falling from the through hole of the motor end cover.
Preferably, a positioning notch is formed in the fixed extension edge, a positioning piece matched with the positioning notch is arranged on the inner end face of the motor end cover, and the positioning piece stretches into the positioning notch to limit the circumferential position of the bushing body. Among the above-mentioned technical scheme, location breach and setting element cooperation can carry out spacingly to the circumference position of bush body, avoid the bush body to rotate in the use.
Preferably, the bushing body comprises an extension part far away from the bushing body relatively, a through hole for passing a wire is formed in the extension part, the wire comprises a plurality of sub-wires, a wire fixing ring is fixed at the end part of the through hole, a plurality of wire through holes matched with the sub-wires are formed in the wire fixing ring, and the sub-wires pass through the corresponding wire through holes. In the technical scheme, the wire fixing ring is in interference fit with the bushing body, the sub-wires penetrate through corresponding wire perforation holes, so that the wires can be prevented from falling off, gaps between the ends of the penetrating holes and the outside can be reduced, and rainwater and ants are prevented from entering.
Preferably, a heat-shrinkable sleeve is arranged at the joint of the wire and the extension part, and two ends of the heat-shrinkable sleeve are respectively tightly sleeved on the outer sides of the extension part and the wire. The heat-shrinkable sleeve is made of heat-shrinkable materials, so that the extension part and the wires can be fixed, and the tightness of the connection part of the extension part and the wires is improved.
Preferably, a plurality of second annular protrusions which are sequentially arranged are arranged on the outer side wall of the extension part, and the heat-shrinkable sleeve is tightly sleeved on the outer sides of the second annular protrusions. A plurality of sealing structures can be formed between the second annular bulges and the heat-shrinkable sleeve, so that the connection effect and the sealing effect between the heat-shrinkable sleeve and the extension part are better, the heat-shrinkable sleeve is not easy to separate, and the heat-shrinkable sleeve has better termite-proof, dust-proof and waterproof effects.
Preferably, the inner diameter of the connecting portion is larger than the inner diameter of the extending portion. The structure can form a kettle-type structure, so that the wire has enough bending space after penetrating into the bushing body, and the wire can conveniently penetrate through the bushing body.
Preferably, the connecting part is provided with a U-shaped fixing plate and a U-shaped notch matched with the U-shaped fixing plate, and the U-shaped fixing plate is clamped into the U-shaped notch and fixes the connecting part on the motor end cover through a screw. The U-shaped fixing plate can tightly press and fix the wire bushing on the motor end cover to prevent the wire bushing from loosening. The fixing extension edge is combined with the U-shaped fixing plate, so that the position of the bushing body can be limited, and the bushing body is more reliably and stably fixed with the motor end cover.
The utility model provides a motor, includes motor body, motor end cover, bush body and wire, motor end cover is fixed with motor body, and the bush body is fixed with motor end cover, the one end of wire passes bush body and motor end cover in proper order and stretches into motor body, the bush body is L type structure to make the wire stretch out the bush body after buckling in the bush body.
In the above technical scheme, the lining body is of an L-shaped structure, so that the lead can be bent inside the lining body, but not at the position of extending out of the lining body, and the gap can be formed at the position of extending out of the lining body when the lead is bent, so that ants and rainwater are not easy to enter the motor through the position of extending out of the lining body. And the bushing body is of an L-shaped structure, so that the size of a lead at the end part of the motor in the motor shaft direction is reduced, and the arrangement of the motor is facilitated.
Drawings
FIG. 1 is a schematic diagram of the motor of the present utility model;
FIG. 2 is a schematic diagram of a wire bushing structure according to the present utility model;
FIG. 3 is a cross-sectional view of a wire bushing structure of the present utility model;
FIG. 4 is a schematic view of the structure of the bushing body of the present utility model;
FIG. 5 is a schematic view of a wire retainer ring according to the present utility model;
FIG. 6 is a schematic view of the structure of the U-shaped fixing plate in the utility model;
fig. 7 is a schematic view of the structure of the motor end cover according to the present utility model.
In the figure: the motor end cover 1, the through hole 1.1, the bushing body 2, the connecting part 2.1, the first annular bulge 2.2, the fixed extension 2.3, the positioning notch 2.4, the extension 2.5, the through hole 2.6, the second annular bulge 2.7, the U-shaped notch 2.8, the wire fixing ring 4, the wire perforation 4.1, the heat shrinkage bush 5, the U-shaped fixing plate 6 and the motor body 7.
Detailed Description
The utility model is further described below with reference to the drawings and specific embodiments.
Example 1:
as shown in fig. 1, 2 and 3, a wire bushing structure for a motor includes a motor end cover 1, a bushing body 2 and a wire, the bushing body 2 is fixed with the motor end cover 1, one end of the wire sequentially passes through the bushing body 2 and the motor end cover 1, and the bushing body 2 is of an L-shaped structure, so that the wire stretches out of the bushing body 2 after being bent in the bushing body 2.
In the above technical scheme, the bushing body 2 is of an L-shaped structure, so that the lead can be bent inside the bushing body 2, but not at the position where the lead extends out of the bushing body 2, and the gap can be avoided at the position where the lead extends out of the bushing body 2 when the lead is bent, so that ants and rainwater are not easy to enter the motor through the position where the lead extends out of the bushing body 2. And the bushing body 2 is of an L-shaped structure, so that the size of a lead at the end part of the motor in the motor shaft direction can be reduced, and the arrangement of the motor is facilitated. The motor end cover 1 is made of aluminum. The wires are not shown in fig. 1.
As shown in fig. 2, 3 and 4, the bushing body 2 includes a cylindrical connecting portion 2.1 connected with the motor end cover 1 and a cylindrical extending portion 2.5 relatively far away from the bushing body 2, the connecting portion 2.1 is communicated with the inside of the extending portion 2.5, a plurality of first annular protrusions 2.2 sequentially arranged along the axis of the connecting portion 2.1 are arranged on the outer side wall of the connecting portion 2.1, a through hole 1.1 adapted to the connecting portion 2.1 is arranged on the motor end cover 1, and the first annular protrusions 2.2 are in interference fit with the side wall of the through hole 1.1.
In the above technical solution, the connecting portion 2.1 is embedded into the motor end cover 1, as shown in fig. 7, and the thickness of the sidewall of the through hole 1.1 is adapted to the plurality of first annular protrusions 2.2, so that the plurality of first annular protrusions 2.2 can simultaneously abut against the sidewall of the through hole 1.1. The side walls of the first annular bulges 2.2 and the through holes 1.1 are in interference fit, a multi-channel sealing structure can be formed, so that the sealing effect between the bushing body 2 and the motor end cover 1 is better, and even if part of the first annular bulges 2.2 lose the sealing effect, the sealing can be kept under the action of the rest first annular bulges 2.2, so that the bushing has better termite-proof, dust-proof and waterproof effects.
Preferably, the inner diameter of the connecting portion 2.1 is larger than the inner diameter of the extension portion 2.5. The structure can form a kettle-type structure, so that the wire has enough bending space after penetrating into the bushing body 2, and the wire can conveniently penetrate through the bushing body 2.
The lower extreme of connecting portion 2.1 is equipped with fixed extension 2.3, and the external diameter of fixed extension 2.3 is greater than the diameter of through-hole 1.1, and fixed extension 2.3 sets up inside motor end cover 1 and supports tightly at the interior terminal surface of motor end cover 1. The fixed extension 2.3 is provided with a positioning notch 2.4, the inner end face of the motor end cover 1 is provided with a positioning piece matched with the positioning notch 2.4, and the positioning piece stretches into the positioning notch 2.4 to limit the circumferential position of the bushing body 2. In the above technical scheme, the fixed extension 2.3 can prevent the bushing body 2 from falling off from the through hole 1.1 of the motor end cover 1. The positioning notch 2.4 is matched with the positioning piece, so that the circumferential position of the bushing body 2 can be limited, and the bushing body 2 is prevented from rotating in the using process.
As shown in fig. 2, 3, 4 and 5, the extending portion 2.5 is provided with a through hole 2.6 for passing through a wire, the wire comprises a plurality of sub wires, a wire fixing ring 4 is fixed at the end of the through hole 2.6, the wire fixing ring 4 is provided with a plurality of wire through holes 4.1 adapted to the sub wires, and the sub wires pass through the corresponding wire through holes 4.1. In the above technical scheme, the wire retainer plate 4 and the bush body 2 interference fit, the sub-line passes corresponding wire perforation 4.1, can prevent the wire from coming off, can also reduce the clearance of passing hole 2.6 tip and external world, prevent rainwater and ant entering. The wire fixing ring 4 is made of PBT material. The connecting portion 2.1 is connected to the inside of the extending portion 2.5.
The wire is equipped with heat shrinkage bush 5 from the junction with extension 2.5, be equipped with a plurality of second annular protruding 2.7 of arranging in proper order along the axis of extension 2.5 on the lateral wall of extension 2.5, the both ends of heat shrinkage bush 5 are respectively tightly overlapped in the outside of a plurality of second annular protruding 2.7 and the outside of wire. The heat shrinkage sleeve 5 is made of heat-shrinkable materials, so that the extension part 2.5 and the wires can be fixed, and the tightness of the connection part of the extension part 2.5 and the wires is improved. A plurality of sealing structures can be formed between the second annular bulges 2.7 and the heat-shrinkable sleeve 5, so that the connecting effect and the sealing effect between the heat-shrinkable sleeve 5 and the extending part 2.5 are better, the heat-shrinkable sleeve 5 is not easy to separate, and the heat-shrinkable sleeve has better termite-proof, dust-proof and waterproof effects.
As shown in fig. 2 and 6, the connecting portion 2.1 is provided with a U-shaped fixing plate 6 and a U-shaped notch 2.8 adapted to the U-shaped fixing plate 6, and the U-shaped fixing plate 6 is clamped into the U-shaped notch 2.8 and fixes the connecting portion 2.1 on the motor end cover 1 through a screw. In the above technical scheme, be equipped with the screw hole with the screw adaptation on the motor end cover 1, U fixed plate 6 can sticis the wire bush and fix at the motor end cover, prevents that the wire bush is not hard up. The fixing extension edge 2.3 is combined with the U-shaped fixing plate 6, so that the position of the bushing body 2 can be limited, and the bushing body 2 is more reliably and stably fixed with the motor end cover 1.
Preferably, the axis of the connecting portion 2.1 is perpendicular to the axis of the extension portion 2.5.
It will be appreciated that in another embodiment, an annular fixing plate may be provided on the connection portion, and the annular fixing plate fixes the connection portion to the motor end cover through a screw.
Example 2:
as shown in fig. 1, a motor comprises a motor body 7, a motor end cover 1, a bushing body 2 and a wire, wherein the motor end cover 1 is fixed with the motor body 7, the bushing body 2 is fixed with the motor end cover 1, one end of the wire sequentially penetrates through the bushing body 2 and the motor end cover 1 and stretches into the motor body 7, and the bushing body 2 is of an L-shaped structure, so that the wire stretches out of the bushing body 2 after being bent in the bushing body 2.
In the above technical scheme, the bushing body 2 is of an L-shaped structure, so that the lead can be bent inside the bushing body 2, but not at the position where the lead extends out of the bushing body 2, and the gap can be avoided at the position where the lead extends out of the bushing body 2 when the lead is bent, so that ants and rainwater are not easy to enter the motor through the position where the lead extends out of the bushing body 2. And the bushing body 2 is of an L-shaped structure, so that the size of a lead at the end part of the motor in the motor shaft direction can be reduced, and the arrangement of the motor is facilitated.
Claims (10)
1. The utility model provides a wire bush structure for motor, includes motor end cover, bush body and wire, the bush body is fixed with the motor end cover, the one end of wire passes bush body and motor end cover in proper order, characterized by, the bush body is L type structure to make the wire stretch out the bush body after buckling in the bush body.
2. The wire bushing structure for a motor of claim 1, wherein the bushing body includes a connecting portion connected to a motor end cap, a plurality of first annular protrusions are sequentially arranged on an outer side wall of the connecting portion, a through hole adapted to the connecting portion is formed in the motor end cap, and the first annular protrusions are in interference fit with a side wall of the through hole.
3. The wire bushing structure for a motor of claim 2, wherein the lower end of the connecting portion is provided with a fixing extension, the outer diameter of the fixing extension is larger than the diameter of the through hole, and the fixing extension is arranged inside the motor end cover and abuts against the inner end surface of the motor end cover.
4. A wire bushing structure for an electric machine according to claim 3, wherein the fixing extension is provided with a positioning notch, the inner end surface of the motor end cover is provided with a positioning member adapted to the positioning notch, and the positioning member extends into the positioning notch to limit the circumferential position of the bushing body.
5. A wire bushing structure for an electric machine according to claim 2 or 3 or 4, wherein the bushing body comprises an extension relatively far from the bushing body, the extension is provided with a through hole for passing a wire, the wire comprises a plurality of sub-wires, the end of the through hole is fixed with a wire fixing ring, the wire fixing ring is provided with a plurality of wire perforations adapted to the sub-wires, and the sub-wires pass through the corresponding wire perforations.
6. The wire bushing structure for an electric motor of claim 5, wherein the wire is provided with a heat shrink tube from a junction with the extension, and both ends of the heat shrink tube are respectively closely sleeved on the outer sides of the extension and the wire.
7. The wire bushing structure for an electric machine of claim 6, wherein a plurality of second annular protrusions are provided on an outer sidewall of the extension portion, the second annular protrusions being sequentially arranged, and the heat shrink sleeve is tightly fitted over the outer sides of the plurality of second annular protrusions.
8. The wire bushing structure for an electric machine of claim 5 wherein said connecting portion has an inner diameter greater than an inner diameter of the extension portion.
9. A wire bushing structure for an electric machine according to claim 2, 3 or 4, wherein the connection portion is provided with a U-shaped fixing plate and a U-shaped notch adapted to the U-shaped fixing plate, and the U-shaped fixing plate is clamped into the U-shaped notch and fixes the connection portion to the end cover of the electric machine by means of screws.
10. The utility model provides a motor, includes motor body, motor end cover, bush body and wire, motor end cover is fixed with motor body, and the bush body is fixed with motor end cover, the one end of wire passes bush body and motor end cover in proper order and stretches into motor body, characterized by, the bush body is L type structure to make the wire stretch out the bush body after this internal bending of bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320218883.8U CN219351435U (en) | 2023-01-16 | 2023-01-16 | Wire bushing structure for motor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320218883.8U CN219351435U (en) | 2023-01-16 | 2023-01-16 | Wire bushing structure for motor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219351435U true CN219351435U (en) | 2023-07-14 |
Family
ID=87104977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320218883.8U Active CN219351435U (en) | 2023-01-16 | 2023-01-16 | Wire bushing structure for motor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219351435U (en) |
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2023
- 2023-01-16 CN CN202320218883.8U patent/CN219351435U/en active Active
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