CN216599218U - Permanent magnet direct current motor with waterproof function - Google Patents
Permanent magnet direct current motor with waterproof function Download PDFInfo
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- CN216599218U CN216599218U CN202123297678.5U CN202123297678U CN216599218U CN 216599218 U CN216599218 U CN 216599218U CN 202123297678 U CN202123297678 U CN 202123297678U CN 216599218 U CN216599218 U CN 216599218U
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- heat dissipation
- sealing
- dissipation shell
- permanent magnet
- direct current
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Abstract
The utility model relates to the field of motor correlation, in particular to a permanent magnet direct current motor with waterproof function, which comprises a heat dissipation shell, a rotor, a plurality of stators, two end sealing covers, two sealing rings, a plurality of fasteners, a plurality of elastic anti-falling pieces with the same quantity as the fasteners and a sealing junction box, wherein the two end sealing covers are coaxially and fixedly arranged at the two ends of the heat dissipation shell, and the two ends of the rotor are respectively connected with the two end sealing covers in a sealing and shaft way; two symmetrical sealing rings are respectively embedded in the side walls of the joints of the two ends of the heat dissipation shell and the two end sealing covers. Firstly, the utility model adopts the integrally formed heat dissipation shell to match with two end sealing covers which are hermetically connected with two ends of the heat dissipation shell to realize the full sealing state of the motor, and the sealing effect is good; and secondly, the utility model discloses the end seal on threaded connection on the heat dissipation shell covers and adds and is equipped with a plurality of fastener and elasticity anticreep spare, has further guaranteed the stable connection of end seal lid.
Description
Technical Field
The utility model relates to a motor correlation field specifically relates to a permanent magnet direct current motor with waterproof function.
Background
The permanent magnet dc motor may be classified into a permanent magnet brushless dc motor and a permanent magnet brush dc motor according to presence or absence of a brush. A permanent magnet dc motor is a dc motor that uses permanent magnets to create a magnetic field. The permanent magnet direct current motor is widely applied to various portable electronic devices or appliances, such as a recorder, a VCD (video recorder), a phonograph, an electric massager and various toys, also widely applied to industries such as automobiles, motorcycles, hand dryers, electric bicycles, storage battery cars, ships, aviation, machinery and the like, and also widely applied to some high-precision products, such as video recorders, copiers, cameras, mobile phones, precision machine tools, bank note counting machines, bank note bundling machines and the like.
The traditional permanent magnet direct current motor has the following defects: firstly, most of the conventional permanent magnet direct current motors adopt an assembled motor structure, and a non-totally-enclosed motor shell is often used for better heat dissipation, so that the danger is higher in a plurality of use scenes with higher air humidity, and a small part of enclosed motors are difficult to realize totally enclosed and have longer service life.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a permanent magnet dc motor with waterproof function to solve the problems in the prior art.
For solving the prior art problem, the utility model discloses a technical scheme be:
a permanent magnet direct current motor with a waterproof function includes:
the heat dissipation shell is integrally formed and has a hollow cylindrical structure, and a rotor in a coaxial state and a plurality of stators which are tightly attached to and fixedly arranged on the inner wall of the heat dissipation shell and are distributed at equal angles relative to the axis of the heat dissipation shell are arranged in the heat dissipation shell;
two end sealing covers in a symmetrical state are coaxially and fixedly arranged at two ends of the heat dissipation shell, and two ends of the rotor are respectively in sealing and shaft connection with the two end sealing covers;
the two symmetrical sealing rings are respectively embedded in the side walls of the joints of the two ends of the radiating shell and the two end sealing covers, and the corresponding ends of the end sealing covers are tightly attached to the sealing rings;
and a plurality of fasteners and elastic anti-falling parts which are distributed at equal angles along the axis of the heat dissipation shell are additionally arranged between each end sealing cover and the heat dissipation shell, and the end sealing cover far away from the head end of the rotor is fixedly and hermetically connected with a sealing junction box used for connecting an external power supply.
Preferably, the shaping has a plurality of along the heat radiation fins of angular distribution such as its axis for the outer cylinder wall of heat dissipation shell and heat dissipation shell's aluminium system shell of integrated into one piece last, all sets up the annular heavy groove that extends to the inboard by the tip along its axial on the outer cylinder wall in the both ends of heat dissipation shell, fastener and elasticity anticreep piece all are on a parallel with the axial fixity of heat dissipation shell and insert the tank bottom department of locating the annular heavy groove, all offer the holding tank that is used for holding the sealing washer on the both ends tip lateral wall of heat dissipation shell.
Preferably, the sealing washer is 0 type circle, the holding tank outer end is close to heat dissipation shell outer cylinder wall outer lane part and is the inclined plane structure with 0 type circle of chucking and prevent that it from deviating from.
Preferably, the inner cylindrical wall of the end, close to the heat dissipation shell, of the end sealing cover is in threaded connection with the inner groove wall of the annular sinking groove, the inner wall of the corresponding end of the end sealing cover abuts against the 0-shaped ring and enables the 0-shaped ring to be extruded and abut against the corresponding groove wall of the annular sinking groove, the end sealing cover is formed close to one end of the heat dissipation shell and is provided with a circular ring portion and a corresponding end of the circular ring portion to abut against the groove bottom of the annular sinking groove, the circular ring portion is provided with a plurality of locking grooves which are in one-to-one correspondence with fasteners and are cylindrical holes, and the fasteners and the elastic anti-falling pieces are coaxially and fixedly arranged in the locking grooves.
Preferably, fastener and elasticity anticreep piece are fastening screw and spring washer respectively, the spring washer cover is located on the fastening screw and the fastening screw passes through the holding tank and locates annular heavy tank bottom department in groove soon, and fastening screw and ring portion are supported tightly respectively to the both sides of spring washer.
Preferably, the two end sealing covers are fixedly and hermetically connected with waterproof bearings, and two ends of the rotor are respectively and fixedly and hermetically connected with inner rings of the two waterproof bearings.
Compared with the prior art, the utility model beneficial effect who has is:
firstly, the utility model adopts the integrally formed heat dissipation shell to match with two end sealing covers which are hermetically connected with two ends of the heat dissipation shell to realize the full sealing state of the motor, and the sealing effect is good;
and secondly, the utility model discloses the end seal on threaded connection on the heat dissipation shell covers and adds and is equipped with a plurality of fastener and elasticity anticreep spare, has further guaranteed the stable connection of end seal lid.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment.
Fig. 2 is a schematic perspective view of the second embodiment.
Fig. 3 is a top view of the embodiment.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 3.
Fig. 5 is an enlarged view of a portion of the structure at B in fig. 4.
Fig. 6 is an enlarged view of a portion of the structure at C in fig. 4.
The reference numbers in the figures are:
1-a heat dissipation housing; 2-a rotor; 3-a stator; 4-end sealing cover; 5-0 type ring; 6-fastening screws; 7-a spring washer; 8-sealing a junction box; 9-radiating fins; 10-accommodating grooves; 11-a circular ring part; 12-a locking groove; 13-waterproof bearing.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 6, a permanent magnet dc motor having a waterproof function includes:
the heat dissipation device comprises a heat dissipation shell 1 which is integrally formed and has a hollow cylindrical structure, wherein a rotor 2 which is in a coaxial state and a plurality of stators 3 which are tightly attached to and fixedly arranged on the inner wall of the heat dissipation shell 1 and are distributed at equal angles relative to the axis of the heat dissipation shell 1 are arranged in the heat dissipation shell 1;
two end sealing covers 4 in a symmetrical state are coaxially and fixedly arranged at two ends of the heat dissipation shell 1, and two ends of the rotor 2 are respectively in sealing and shaft connection with the two end sealing covers 4;
the two symmetrical sealing rings are respectively embedded in the side walls of the joints of the two ends of the radiating shell 1 and the two end sealing covers 4, and the corresponding ends of the end sealing covers 4 are tightly attached to the sealing rings;
a plurality of fasteners and elastic anti-release pieces which are distributed at equal angles along the axis of the heat dissipation shell 1 are additionally arranged between each end sealing cover 4 and the heat dissipation shell 1, and a sealing junction box 8 used for connecting an external power supply is fixedly and hermetically connected to the end sealing cover 4 far away from the head end of the rotor 2.
The shaping has a plurality of along the heat radiation fins 9 of angular distribution such as its axis for the outer cylinder wall of heat dissipation shell 1 is gone up to heat dissipation shell 1 aluminium system shell and heat dissipation shell 1 of integrated into one piece, all sets up the annular heavy groove that extends to the inboard by the tip along its axial on the outer cylinder wall in heat dissipation shell 1's both ends, fastener and elasticity anticreep piece all are parallel to the axial fixity of heat dissipation shell 1 and insert the tank bottom department of locating the annular heavy groove, all set up the holding tank 10 that is used for holding the sealing washer on the both ends tip lateral wall of heat dissipation shell 1. The heat dissipation shell 1 is formed by aluminum in an integrated extrusion mode into a shell shape with the heat dissipation fins 9, the sealing of the interior can be effectively achieved through an integrated structure, the contact area between the heat dissipation shell and air or other media can be effectively increased through the plurality of heat dissipation fins 9, the good heat conductivity of aluminum metal is guaranteed due to the material characteristics of the aluminum metal, and therefore heat generated by rotation of the inner rotor 2 can be rapidly led out.
The sealing washer is 0 type circle 5, 10 outer ends of holding tank are close to 1 outer cylinder wall outer lane part of heat dissipation shell and are the inclined plane structure and prevent that it from deviating from with 0 type circle 5 of chucking. The 0 type ring 5 is embedded in the containing groove 10 and then is in an inclined plane structure of the containing groove 10, it is guaranteed that the 0 type ring 5 cannot be separated freely and easily, the 0 type ring 5 is elastic, the part of the 0 type ring 5 is located outside the containing groove 10 when the end sealing cover 4 is not installed, the end sealing cover 4 is installed on the heat dissipation shell 1 and then is compressed tightly by the end sealing cover 4, the 0 type ring 5 is forced to generate elastic deformation and is abutted against the groove wall of the containing groove 10, meanwhile, the 0 type ring 5 is tightly attached to the end sealing cover 4, and therefore sealing connection between the end sealing cover 4 and the heat dissipation shell 1 can be achieved at the position of the 0 type ring 5.
The inner cylindrical wall of the end, close to the heat dissipation shell 1, of the end sealing cover 4 is in threaded connection with the inner groove wall of the annular sinking groove, the inner wall of the end sealing cover 4 corresponding to the end of the end sealing cover supports against the 0-shaped ring 5, the 0-shaped ring 5 is extruded and clings to the corresponding groove wall of the annular sinking groove 10, the end sealing cover 4 is formed close to the end of the heat dissipation shell 1, the end of the annular part 11 is clinging to the groove bottom of the annular sinking groove, the annular part 11 is provided with a plurality of locking grooves 12 which are in one-to-one correspondence with fasteners and are in cylindrical hole shapes, and the fasteners and the elastic anti-falling pieces are coaxially and fixedly arranged in the locking grooves 12. The end sealing cover 4 is screwed on the heat radiation casing 1, and in order to prevent the loose of the screw connection part and the unsealed between the end sealing cover 4 and the heat radiation casing 1, a fastening piece and an elastic anti-release piece are additionally arranged to further fix the end sealing cover 4.
Fastener and elasticity anticreep piece are fastening screw 6 and spring shim 7 respectively, spring shim 7 cover is located on fastening screw 6 and fastening screw 6 locates the tank bottom department of annular heavy groove soon through holding tank 10, and fastening screw 6 and ring portion 11 are supported tightly respectively to the both sides of spring shim 7. The fastening screw 6 in cooperation with the spring washer 7 can further ensure a stable connection between the end sealing cap 4 and the heat radiating housing 1 without easily loosening the end sealing cap 4.
Two equal fixed sealing connection has waterproof bearing 13 on the sealed lid 4 of tip, the both ends of rotor 2 respectively with two waterproof bearing 13's inner circle fixed sealing connection. The waterproof bearing 13 is used for sealing the joint of the rotor 2 and the two end sealing covers 4 and ensuring the integral sealing between the two end sealing covers 4 and the heat dissipation shell 1.
The above examples are merely illustrative of one or more embodiments of the present invention, and the description thereof is more specific and detailed, but not intended to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a permanent magnet direct current motor with waterproof function which characterized in that includes:
the heat dissipation device comprises a heat dissipation shell (1) which is integrally formed and has a hollow cylindrical structure, wherein a rotor (2) which is in a coaxial state and a plurality of stators (3) which are tightly attached to and fixedly arranged on the inner wall of the heat dissipation shell (1) and are distributed at equal angles relative to the axis of the heat dissipation shell (1) are arranged in the heat dissipation shell (1);
the two end sealing covers (4) are in a symmetrical state and are coaxially and fixedly arranged at two ends of the heat dissipation shell (1), and two ends of the rotor (2) are respectively in sealing and shaft connection with the two end sealing covers (4);
the two symmetrical sealing rings are respectively embedded in the side walls of the joints of the two ends of the radiating shell (1) and the two end sealing covers (4), and the corresponding ends of the end sealing covers (4) are tightly attached to the sealing rings;
a plurality of fasteners and elastic anti-falling pieces which are distributed at equal angles along the axis of the heat dissipation shell (1) are additionally arranged between each end sealing cover (4) and the heat dissipation shell (1), and a sealing junction box (8) used for connecting an external power supply is fixedly and hermetically connected to the end sealing cover (4) far away from the head end of the rotor (2).
2. The permanent magnet direct current motor with the waterproof function according to claim 1, wherein the heat dissipation housing (1) is an integrally formed aluminum housing, a plurality of heat dissipation fins (9) are formed on the outer cylindrical wall of the heat dissipation housing (1) and are distributed at equal angles along the axis of the heat dissipation housing, annular sinking grooves are formed in the outer cylindrical walls at the two ends of the heat dissipation housing (1) and extend inwards along the axial direction of the heat dissipation housing, the fastening piece and the elastic anti-release piece are parallel to the axial direction of the heat dissipation housing (1), are inserted into the groove bottom of the annular sinking grooves, and accommodating grooves (10) for accommodating the sealing rings are formed in the side walls of the end portions at the two ends of the heat dissipation housing (1).
3. The permanent magnet direct current motor with waterproof function according to claim 2, characterized in that the sealing ring is a 0-ring (5), and the outer end of the accommodating groove (10) is inclined near the outer ring part of the outer cylindrical wall of the heat dissipation housing (1) to clamp the 0-ring (5) and prevent it from falling out.
4. The permanent magnet direct current motor with the waterproof function according to claim 1, wherein an inner cylindrical wall of one end of the end part sealing cover (4) close to the heat dissipation shell (1) is in threaded connection with an inner groove wall of the annular sinking groove, an inner wall of a corresponding end of the end part sealing cover (4) abuts against the 0-shaped ring (5) and enables the 0-shaped ring (5) to be extruded and abut against a corresponding groove wall of the accommodating groove (10), a circular ring part (11) is formed at one end of the end part sealing cover (4) close to the heat dissipation shell (1), a corresponding end of the circular ring part (11) abuts against a groove bottom of the annular sinking groove, a plurality of locking grooves (12) which correspond to the fastening pieces one by one and are in a cylindrical hole shape are formed in the circular ring part (11), and the fastening pieces and the elastic anti-release pieces are coaxially and fixedly arranged in the locking grooves (12).
5. The permanent magnet direct current motor with the waterproof function according to claim 4, wherein the fastening member and the elastic anti-release member are a fastening screw (6) and a spring washer (7) respectively, the spring washer (7) is sleeved on the fastening screw (6), the fastening screw (6) is screwed on the groove bottom of the annular sinking groove through an accommodating groove (10), and two sides of the spring washer (7) abut against the fastening screw (6) and the annular portion (11) respectively.
6. The permanent magnet direct current motor with waterproof function according to claim 1, wherein the two end sealing covers (4) are fixedly and hermetically connected with waterproof bearings (13), and two ends of the rotor (2) are respectively and fixedly and hermetically connected with inner rings of the two waterproof bearings (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297678.5U CN216599218U (en) | 2021-12-23 | 2021-12-23 | Permanent magnet direct current motor with waterproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297678.5U CN216599218U (en) | 2021-12-23 | 2021-12-23 | Permanent magnet direct current motor with waterproof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216599218U true CN216599218U (en) | 2022-05-24 |
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ID=81616969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123297678.5U Active CN216599218U (en) | 2021-12-23 | 2021-12-23 | Permanent magnet direct current motor with waterproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216599218U (en) |
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2021
- 2021-12-23 CN CN202123297678.5U patent/CN216599218U/en active Active
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