CN219576799U

CN219576799U - DC motor

Info

Publication number: CN219576799U
Application number: CN202320497355.0U
Authority: CN
Inventors: 谢小莹; 孙文敏; 王森华
Original assignee: Hunan Longdesheng Electromechanical Technology Co ltd
Current assignee: Hunan Longdesheng Electromechanical Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-22
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a direct current motor, which comprises a housing, wherein the cross section of the housing is in a round rectangle, a hollow accommodating space is arranged in the housing, two empty avoiding grooves are arranged along the axial direction of the housing, and the two empty avoiding grooves are oppositely arranged; the magnetic shoe is arranged in the accommodating space; the mounting bracket comprises a first bracket and a second bracket, the first bracket and the second bracket are respectively arranged at two sides of the shell along the axial direction of the shell, bosses are arranged at the bottoms of the first bracket and the second bracket, and the shell is fixed with the first bracket and the second bracket through the bosses; a first heat dissipation space is arranged between the first support and the shell, and a second heat dissipation space is arranged between the second support and the shell. The heat radiation capability of the motor can be improved, the space utilization rate of the motor is improved, and the miniaturization of the motor is realized.

Description

DC motor

Technical Field

The utility model relates to the technical field of motors, in particular to a direct current motor.

Background

The dc motor can be classified into a brushless dc motor and a brush dc motor according to the structure and the operation principle. The brush direct current motor is a direct current motor, a stator of the brush motor is provided with a fixed main magnetic pole and a brush, and a rotor is provided with an armature winding and a commutator. The electric energy of the direct current power supply enters the armature winding through the electric brush and the commutator to generate armature current, and the magnetic field generated by the armature current interacts with the main magnetic field to generate electromagnetic torque, so that the motor rotates to drive a load.

Most of the existing brush direct current motors are provided with stators and rotors in motor shells, and the motor shells influence heat dissipation in the motors, so that the improvement of the energy efficiency ratio of the motors is not facilitated, and the type of direct current motors occupy more space and are not beneficial to the improvement of the space utilization rate.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the direct current motor, which can improve the heat radiation capacity of the motor, improve the space utilization rate of the motor and realize the miniaturization of the motor.

According to an embodiment of the first aspect of the present utility model, a direct current motor includes:

the cross section of the shell is in a round rectangle, a hollow accommodating space is arranged in the shell, two empty avoiding grooves are arranged along the axial direction of the shell, and the two empty avoiding grooves are oppositely arranged;

the magnetic shoe is arranged in the accommodating space;

the mounting bracket comprises a first bracket and a second bracket, the first bracket and the second bracket are respectively arranged on two sides of the shell along the axial direction of the shell, bosses are arranged at the bottoms of the first bracket and the second bracket, and the shell is fixed with the first bracket and the second bracket through the bosses;

the first support and the shell are provided with a first heat dissipation space therebetween, and the second support and the shell are provided with a second heat dissipation space therebetween.

The direct current motor provided by the embodiment of the utility model has at least the following beneficial effects: the shell sets up keep away empty slot, can reduce the volume of shell, keep away empty slot subtend setting, more convenient in the time of installing other parts is favorable to realizing standardized and automated production of product, first support and second support are installed respectively in the both sides of shell, can install different parts at first support and second support, improve the utilization ratio in space, the heat dissipation space that first support and second support set up is favorable to the heat dissipation of each spare part of motor to reduce the temperature of motor during operation, can improve the energy efficiency ratio of motor to a certain extent.

According to some embodiments of the utility model, the boss of the first bracket is provided with a through hole, the boss of the second bracket is provided with a threaded hole, the threaded hole is provided corresponding to the through hole, and the through hole and the threaded hole fix the housing by one fastener. Utilize through-hole and screw hole to fix, can be quick install shell, first support and second support together, improve production and assembly's efficiency.

According to some embodiments of the utility model, the first bracket is provided with two through holes, the two through holes are arranged oppositely, and the second bracket is provided with two threaded holes, the two threaded holes are arranged oppositely. The two through holes and the two threaded holes are arranged, so that the firmness of the motor can be improved, and the service life of a product is prolonged.

According to some embodiments of the utility model, the fastener is a polished rod screw.

According to some embodiments of the utility model, the fastener is disposed on one side of the void-avoidance slot. The space can be further saved, and the whole size of the motor is more compact.

According to some embodiments of the utility model, a positioning block is arranged on the outer side of the clearance groove, a plurality of positioning columns are arranged on one side, facing the shell, of the boss, the positioning block and the positioning columns are matched with each other, and the positioning columns are clamped with the positioning block. The positioning function can be provided for the first bracket and the second bracket, so that the efficiency of mounting the first bracket and the second bracket is improved, and the mounting time is shortened.

According to some embodiments of the utility model, the magnetic shoe is provided with an avoidance portion, and the radian of the avoidance portion is matched with the radian of the avoidance groove. The avoidance part can be easier to install the magnetic shoe, and the avoidance part is provided with a certain radian to play a role in positioning, so that the installation efficiency is improved.

According to some embodiments of the utility model, two magnetic shoes are disposed in the accommodating space, and the two magnetic shoes are disposed opposite to each other on the inner side of the housing and are fixed relative to the housing. The magnetic shoe that the subtended setting can be better fix in the inboard of shell, need not to set up the spacing in addition.

According to some embodiments of the utility model, the first bracket is provided with a first side plate connecting the boss of the first bracket and the main body of the first bracket to form a heat dissipation space, and the second bracket is provided with a second side plate connecting the boss of the second bracket and the main body of the second bracket to form a heat dissipation space. Ensure that the inside part of motor has sufficient position to dispel the heat, improve the performance of motor.

According to some embodiments of the utility model, the first bracket is provided with a connecting terminal, the connecting terminal is provided with a tongue-shaped spring piece, the tongue-shaped spring piece is clamped on the first bracket, and two ends of the connecting terminal are respectively provided with a wire connecting hole. The motor does not need to be connected with a lead in addition, and the connecting terminal can be more conveniently connected with an external power supply.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an electric machine according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of a housing according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a second bracket and its parts according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a first bracket and its parts according to an embodiment of the present utility model;

fig. 5 is a schematic view of a connection terminal according to an embodiment of the present utility model.

Reference numerals: a first bracket 100; a second bracket 110; a housing 120; a connection terminal 130; polished rod screw 140; a boss 150; a magnetic shoe 160; a positioning block 170; a clearance groove 180; a positioning column 190; a threaded hole 200; a through hole 210; a tongue spring 220; a wire connection hole 230; a first side plate 300; a second side plate 310.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 4, a direct current motor includes a housing 120, the cross section of the housing 120 is in a rounded rectangle, a hollow accommodating space is provided in the housing 120, two space avoiding grooves 180 are provided along the axial direction of the housing 120, and the two space avoiding grooves 180 are provided opposite to each other with the axis of the housing 120; the magnetic shoe 160 is installed in the accommodating space; the mounting bracket includes a first bracket 100 and a second bracket 110, the first bracket 100 and the second bracket 110 are respectively mounted at both sides of the housing 120 along an axial direction of the housing 120, bosses 150 are provided at bottoms of the first bracket 100 and the second bracket 110, and the housing 120 is fixed with the first bracket 100 and the second bracket 110 through the bosses 150; a first heat dissipation space is disposed between the first bracket 100 and the housing 120, and a second heat dissipation space is disposed between the second bracket 110 and the housing 120. It can be appreciated that the two opposite clearance grooves 180 form a rounded rectangle in the cross section of the housing 120, the clearance grooves 180 reduce the thickness of the housing 120, and the saved space can be used for mounting other components, so that the motor of the embodiment is more compact in size.

The space avoiding groove 180 that shell 120 set up can reduce the volume of shell 120, space avoiding groove 180 subtends setting, more convenient when installing other parts is favorable to realizing standardized and automated production of product, first support 100 and second support 110 are installed respectively in the both sides of shell 120, can install different parts at first support 100 and second support 110, improve the utilization ratio in space, the heat dissipation space that first support 100 and second support 110 set up is favorable to the heat dissipation of each spare part of motor to reduce the temperature of motor during operation, can improve the energy efficiency ratio of motor to a certain extent.

Referring to fig. 3 and 4, the boss 150 of the first bracket 100 is provided with a through hole 210, the boss 150 of the second bracket 110 is provided with a screw hole 200, the screw hole 200 is provided corresponding to the through hole 210, and the through hole 210 and the screw hole 200 fix the housing 120 by one fastener. The housing 120, the first bracket 100 and the second bracket 110 can be rapidly installed together by fixing the through holes 210 and the screw holes 200, and the efficiency of production and assembly is improved. The first bracket 100 is provided with two through holes 210, the two through holes 210 are disposed opposite to each other, and the second bracket 110 is provided with two screw holes 200, the two screw holes 200 are disposed opposite to each other. By arranging the two through holes 210 and the two threaded holes 200, the firmness of the motor can be improved, and the service life of the product can be prolonged. The fastener is polished rod screw 140, and the fastener sets up in the one side of keeping away empty groove 180, space that the space 180 was saved was kept away in the utilization that can be better to make the structure of motor compacter. The space can be further saved, so that the overall size of the motor is more compact. It will be appreciated that the mounting positions of the through-hole 210 and the threaded hole 200 may be interchanged without affecting the mounting of the first bracket 100 and the second bracket 110.

Referring to fig. 2 to 4, a positioning block 170 is disposed at an outer side of the clearance groove 180, a plurality of positioning columns 190 are disposed at a side of the boss 150 facing the housing 120, the positioning block 170 and the positioning columns 190 are matched with each other, and the positioning columns 190 are clamped to the positioning block 170. The positioning function can be provided for the first bracket 100 and the second bracket 110, the efficiency in mounting the first bracket 100 and the second bracket 110 is improved, and the mounting time is reduced. In some embodiments, the bottom of the boss 150 is provided with a buckle, the clearance groove 180 is provided with a clamping groove, and the fixing can be realized by using the buckle and the clamping groove to mutually match.

Referring to fig. 2, the magnetic shoe 160 is provided with a relief portion having an arc matching with an arc of the relief groove 180. The avoidance part can be easier to install the magnetic shoe 160, and the avoidance part is provided with a certain radian to play a role in positioning, so that the installation efficiency is improved. Keep away empty groove 180 can chucking magnetic shoe 160, because magnetic shoe 160 has certain magnetism, can adsorb each other between two magnetic shoes together, and keep away empty groove 180 can be with the chucking of magnetic shoe 160, avoids two magnetic shoes to adsorb together, need not to set up spacing shell fragment between two magnetic shoes, can save the cost, improves the efficiency of installation. Two magnetic shoes are arranged in the accommodating space, are oppositely arranged on the inner side of the shell 120 and are relatively fixed with the shell 120. The magnetic shoe 160 that the opposite direction set up can be better fixed in the inboard of shell 160, need not to set up the spacing in order to support magnetic shoe 160 additionally, because keep away the spacing of empty slot 180, two magnetic shoes that the polarity is opposite can be fixed in the inboard of shell 120 relatively, and magnetic shoe 160 can not follow the inboard of shell 160 and remove. It will be appreciated that the height of the magnetic shoe 160 is level with the height of the housing 120 and the motor is more aesthetically pleasing as a whole.

Referring to fig. 3 and 4, the first bracket 100 is provided with a first side plate 300, the first side plate 300 connects the boss 150 of the first bracket 100 and the main body of the first bracket 100 to form a heat dissipation space, the second bracket 110 is provided with a second side plate 310, and the second side plate 310 connects the boss 150 of the second bracket 110 and the main body of the first bracket 100 to form a heat dissipation space. Ensure that the inside part of motor has sufficient position to dispel the heat, improve the performance of motor. The first side plate 300 and the second side plate 310 increase the heat dissipation space of the motor, and the secured parts have sufficient positions to allow air circulation, thereby improving the heat dissipation performance of the motor.

Referring to fig. 5, the first bracket 100 is provided with a connection terminal 130, the connection terminal 130 is provided with a tongue-shaped spring 220, the tongue-shaped spring 220 is clamped to the first bracket 100, and two ends of the connection terminal 130 are respectively provided with a wire connection hole 230. The motor does not need to be additionally connected with a wire, and the connecting terminal 130 can be more conveniently connected with an external power supply.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A direct current motor, comprising:

the magnetic shoe is arranged in the accommodating space;

2. A direct current motor according to claim 1, characterized in that the boss of the first bracket is provided with a through hole, the boss of the second bracket is provided with a threaded hole, the threaded hole is provided corresponding to the through hole, and the through hole and the threaded hole fix the housing by means of a fastener.

3. A direct current motor according to claim 2, wherein said first bracket is provided with two of said through holes, said two of said through holes being disposed opposite each other, and said second bracket is provided with two of said screw holes, said two of said screw holes being disposed opposite each other.

4. A direct current electric machine according to claim 2, characterized in that the fastener is a polished rod screw.

5. A direct current motor according to claim 2, characterized in that the fastening means are arranged on one side of the clearance groove.

6. The direct current motor of claim 1, wherein a positioning block is arranged on the outer side of the clearance groove, a plurality of positioning columns are arranged on one side of the boss, which faces the shell, and the positioning block and the positioning columns are matched with each other, and the positioning columns are clamped with the positioning block.

7. The direct current motor according to claim 1, wherein the magnetic shoe is provided with an avoidance portion, and the arc of the avoidance portion is matched with the arc of the clearance groove.

8. The direct current motor according to claim 1, wherein two magnetic shoes are disposed in the accommodating space, and the two magnetic shoes are disposed opposite to the inner side of the housing and are fixed relative to the housing.

9. The direct current motor according to claim 1, wherein the first bracket is provided with a first side plate, the first side plate connects the boss of the first bracket and the main body of the first bracket to form a heat dissipation space, the second bracket is provided with a second side plate, and the second side plate connects the boss of the second bracket and the main body of the second bracket to form a heat dissipation space.

10. The direct current motor according to claim 1, wherein the first bracket is provided with a connecting terminal, the connecting terminal is provided with a tongue-shaped spring piece, the tongue-shaped spring piece is clamped to the first bracket, and two ends of the connecting terminal are respectively provided with a wire connecting hole.