CN218276289U

CN218276289U - High-safety brush direct-current motor

Info

Publication number: CN218276289U
Application number: CN202222597080.6U
Authority: CN
Inventors: 姚凯; 李明芳
Original assignee: Zibo Kaishida Transmission Equipment Co ltd
Current assignee: Zibo Kaishida Transmission Equipment Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-10
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a high security performance has brush DC motor relates to brush DC motor technical field, including casing body, this internal rotor body that is provided with of casing, this internal permanent magnet body that is provided with of casing, rotor body's both ends all are connected with the pivot body, this internal carbon brush subassembly that is provided with of casing, one side of casing body is connected with the dust absorption pipe, the utility model discloses in, the dust absorption pump can be with the carbon dust through the dust absorption pipe suction installing frame in, then filter through sliding connection's in the installing frame filter screen, the air that filters afterwards is discharged from the air outlet, when the long term of live time, rotatable positioning bolt, then pull out the connecting block to take out the filter screen, clear up it, utilize the absorber plate of setting to give off on adsorbing the radiating block with the heat that this internal during operation of casing produced simultaneously, the utility model has the characteristics of high security performance.

Description

High-safety brush direct-current motor

Technical Field

The utility model relates to a brush DC motor technical field especially relates to a high security performance has brush DC motor.

Background

The brush DC motor is a DC motor, the stator of the brush motor is provided with a fixed main magnetic pole and a brush, the rotor rotates, and the carbon brush contacted with the rotor does not rotate. Because the carbon brush has a soft characteristic, the carbon brush and the rotor can generate more carbon powder when in friction, and after the carbon powder is formed, cyclone can be formed in the motor along with air flow, so that the phenomena of insulation reduction of the motor rotor, discharge of internal parts of the motor, carbon brush blockage, short circuit of the motor, burning of the motor and the like are easily caused.

For example, a conventional patent (publication No. CN 202840846U) discloses a brushed dc motor, which includes: the electric brush assembly comprises a brush holder, an electric brush and a force-equalizing spring, wherein the electric brush and the force-equalizing spring are respectively fixed at two opposite ends of the brush holder.

But above-mentioned direct current motor does not set up in the use and inhales the carbon subassembly, and in the in-process of using, can produce more carbon dust when carbon brush and rotor rub, pile up easily and lead to the motor short circuit in the motor, have certain potential safety hazard, the device does not set up the cooling subassembly in the use simultaneously, makes the motor the condition of overload work appear easily.

Therefore, a high-safety brushed direct current motor is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high security performance has brush direct current motor has solved the relatively poor technical problem of security performance among the prior art.

In order to solve the technical problem, the utility model provides a pair of high security performance has brush direct current motor, include: the improved motor casing comprises a casing body, this internal rotor body that is provided with of casing, this internal permanent magnet body that is provided with of casing, rotor body's both ends all are connected with the pivot body, this internal carbon brush subassembly that is provided with of casing, one side of casing is connected with the dust absorption pipe, the other end of dust absorption pipe is connected with the dust absorption pump, one side of dust absorption pump is connected with the installing frame, one side of installing frame is provided with the air outlet, sliding connection has the filter screen in the installing frame, the one end of filter screen is connected with the connecting block, threaded connection has positioning bolt on the connecting block, the outside of casing is provided with radiator unit, radiator unit is used for dispelling the heat to the casing internally, and the dust absorption pump can start inhales the carbon dust in the installing frame through the dust absorption pipe, then filters through sliding connection's in the installing frame filter screen, and the air that filters is discharged from the air outlet afterwards, when the live time is longer, rotatable positioning bolt, then pulls out the connecting block to take out the filter screen, clear up it.

Preferably, the heat dissipation assembly comprises a fixing frame connected to the casing body, a heat absorbing plate is arranged in the fixing frame, one side of the heat absorbing plate is connected with a heat dissipation block, and heat generated during working in the casing body can be absorbed to the heat dissipation block to be dissipated by the aid of the heat absorbing plate, so that the situation that the motor is overloaded and works due to overhigh temperature is avoided.

Preferably, one side of the fixing frame is connected with a radiating fin for improving the radiating effect of the radiating block and accelerating the radiating efficiency.

Preferably, the fixed frame is connected with a protective cover, the protective cover is sleeved on the dust suction pump, and dust is prevented from entering the dust suction pump in the long-time use process of the dust suction pump.

Preferably, the connecting block is connected with a hanging ring, the hanging ring is provided with an anti-skidding sleeve, and the hanging ring is convenient for a user to pull and take out the connecting block.

Preferably, the connecting block is provided with the sealing washer with the junction of installing frame, has promoted the leakproofness of installing frame and connecting block junction.

Preferably, one of them the bottom of fixed frame is connected with the supporting leg, the quantity of supporting leg is four, and is located the four corners position of fixed frame bottom respectively, has improved the stability when casing body places.

Preferably, the supporting legs are made of stainless steel, the stainless steel has the characteristic of corrosion resistance, and the service life of the supporting legs is prolonged by the arrangement.

Compared with the prior art, the utility model provides a pair of high security performance has brush direct current motor has following beneficial effect:

1. the utility model discloses in, the dust absorption pump can be with the carbon dust through in the dust absorption pipe inhales the installing frame, then filters through sliding connection's in the installing frame filter screen, and the air that filters afterwards is discharged from the air outlet, and when the live time is longer, rotatable positioning bolt, then pull out the connecting block to take out the filter screen, clear up it, it is effectual that the carbon dust is removed to this setting.

2. The utility model discloses in, utilize the absorber plate that sets up can distribute the heat that this internal during operation of casing produced to the radiating block on adsorbing to avoid the high temperature, and lead to the condition of overload work to appear in the motor.

Drawings

FIG. 1 is a schematic view of an overall structure of a high-safety brushed DC motor;

FIG. 2 is a schematic diagram of the internal structure of a high safety brushed DC motor;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged view of the structure at B in fig. 2.

Reference numbers in the figures: 1. a housing body; 2. a rotor body; 3. a permanent magnet body; 4. a rotating shaft body; 5. a carbon brush assembly; 6. a dust collection pipe; 7. a dust suction pump; 8. installing a frame; 9. a filter screen; 10. connecting blocks; 11. positioning the bolt; 12. a fixing frame; 13. a heat absorbing plate; 14. a heat dissipating block; 15. and heat dissipation fins.

Detailed Description

Embodiments of the present invention are described in detail below.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In a first embodiment, as shown in fig. 1-4, a high safety brushed dc motor includes: the motor casing comprises a casing body 1, a rotor body 2 is arranged in the casing body 1, a permanent magnet body 3 is arranged in the casing body 1, two ends of the rotor body 2 are connected with a rotating shaft body 4, a carbon brush component 5 is arranged in the casing body 1, one side of the casing body 1 is connected with a dust suction pipe 6, the other end of the dust suction pipe 6 is connected with a dust suction pump 7, one side of the dust suction pump 7 is connected with a mounting frame 8, one side of the mounting frame 8 is provided with an air outlet, a filter screen 9 is slidably connected in the mounting frame 8, one end of the filter screen 9 is connected with a connecting block 10, a positioning bolt 11 is in threaded connection with the connecting block 10, a heat dissipation component is arranged on the outer side of the casing body 1 and used for dissipating heat in the casing body 1 and comprises a fixing frame 12, the fixing frame 12 is connected on the casing body 1, be provided with the absorber plate 13 in the fixed frame 12, one side of absorber plate 13 is connected with radiating block 14, when the motor produced the carbon dust in the middle of the work, dust absorption pump 7 can start inhales the installing frame 8 with the carbon dust through dust absorption pipe 6 in, then filter through sliding connection's in the installing frame 8 filter screen 9, the air that filters afterwards is discharged from the air outlet, when live time is longer, rotatable positioning bolt 11, then pull out connecting block 10, thereby take out filter screen 9, clear up it, make things convenient for subsequent use, utilize the absorber plate 13 that sets up simultaneously to adsorb the heat that produces to radiating block 14 on with the during operation in casing body 1 and give off, thereby avoid the high temperature, and lead to the condition of overload work to appear in the motor.

In addition, include brush holder, carbon brush and compression spring in the carbon brush subassembly 5, this for prior art does not do this and gives unnecessary details here, is connected with two branch pipes on the dust absorption pipe 6 and is used for promoting the efficiency of inhaling carbon, and positioning bolt 11's quantity is four for promote the location effect to connecting block 10.

Embodiment two, on the basis of embodiment one, one side of fixed frame 12 is connected with heat radiation fins 15, a radiating effect for promoting radiating block 14, accelerate radiating efficiency, be connected with the protection casing on fixed frame 12, the protection casing cup joints on dust absorption pump 7, this setting has avoided dust absorption pump 7 in long-time use, there is the dust to get into in dust absorption pump 7, thereby lead to the condition that the power short circuit appears in dust absorption pump 7, be connected with the link on connecting block 10, be provided with the antiskid cover on the link, this setting convenience of customers pulling link, take out connecting block 10, connecting block 10 is provided with the sealing washer with the junction of installing frame 8, the leakproofness of installing frame 8 with connecting block 10 junction has been promoted, the bottom of one of them fixed frame 12 is connected with the supporting leg, the quantity of supporting leg is four, and be located the four corners position of fixed frame 12 bottom respectively, stability when having improved casing body 1 and placing, the material of supporting leg is the stainless steel, the stainless steel has corrosion-resistant characteristics, this setting has prolonged the life of supporting leg.

The working principle is as follows: the brush DC motor has stable performance and low manufacturing cost, and the rotor rotates while the carbon brush contacting with the rotor does not rotate. Because the characteristic of carbon brush is softer, can produce more carbon powder when carbon brush and rotor friction, these carbon powders form after, can be along with the air current at the inside cyclone that forms of motor, cause the insulating decline of motor rotor easily, the motor is burnt phenomenons such as, secondly current motor lacks effectual radiator unit in the use, because the temperature is too high easily, and the motor overload work appears, the condition that is burnt even appears, designs the device for this reason:

the specific using method comprises the following steps: start dust absorption pump 7 and can inhale the installing frame 8 with the carbon dust through dust absorption pipe 6 in, then filter through installing frame 8 sliding connection's filter screen 9, the air that filters afterwards is discharged from the air outlet, when live time is longer, rotatable positioning bolt 11, then pull out connecting block 10, thereby take out filter screen 9, clear up it, make things convenient for subsequent use, the heat that utilizes the absorber plate 13 that sets up to produce the during operation in casing body 1 adsorbs and gives off on radiating block 14 simultaneously, thereby avoid the high temperature, and lead to the motor the condition of overload work to appear.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high safety brushed dc motor comprising: casing body (1), its characterized in that, be provided with rotor body (2) in casing body (1), be provided with permanent magnet body (3) in casing body (1), the both ends of rotor body (2) all are connected with pivot body (4), be provided with carbon brush subassembly (5) in casing body (1), one side of casing body (1) is connected with dust absorption pipe (6), the other end of dust absorption pipe (6) is connected with dust absorption pump (7), one side of dust absorption pump (7) is connected with installing frame (8), be provided with filter screen (9) in installing frame (8), the one end of filter screen (9) is connected with connecting block (10), threaded connection has positioning bolt (11) on connecting block (10), the outside of casing body (1) is provided with radiator unit, radiator unit is used for dispelling the heat in casing body (1).

2. The high-safety brush direct-current motor according to claim 1, wherein the heat dissipation assembly comprises a fixing frame (12), the fixing frame (12) is connected to the housing body (1), a heat absorption plate (13) is arranged in the fixing frame (12), and a heat dissipation block (14) is connected to one side of the heat absorption plate (13).

3. A high safety brushed dc motor as claimed in claim 2 wherein the fixing frame (12) is attached with heat dissipating fins (15) on one side.

4. The high-safety brush direct-current motor according to claim 2, wherein a protective cover is connected to the fixing frame (12) and is sleeved on the dust suction pump (7).

5. A high-safety brushed dc motor as set forth in claim 1, wherein a suspension ring is connected to the connecting block (10), and an anti-slip sleeve is disposed on the suspension ring.

6. A high-safety brush dc motor according to claim 1, wherein a sealing ring is arranged at the joint of the connecting block (10) and the mounting frame (8).

7. The high-safety brush direct-current motor according to claim 2, wherein the bottom of one of the fixed frames (12) is connected with four support legs, and the support legs are respectively positioned at four corners of the bottom of the fixed frame (12).

8. The high-safety brush direct-current motor according to claim 7, wherein the support legs are made of stainless steel.