CN112821675B

CN112821675B - Compact DC motor

Info

Publication number: CN112821675B
Application number: CN202011609300.1A
Authority: CN
Inventors: 原伟波
Original assignee: Suzhou Dayuan Electrical Appliance Co ltd
Current assignee: Suzhou Dayuan Electrical Appliance Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2024-02-06
Anticipated expiration: 2040-12-30
Also published as: CN112821675A

Abstract

The utility model provides a compact direct current motor, includes casing, stator and rotor, is provided with left side end cover and the right side end cover as the brush yoke respectively at the both ends of casing, the rotor include the part and stretch out the pivot of right side end cover, the annular distribution has more than one arc iron core outside the pivot, the surface cooperation of all arc iron cores constitutes one and encircles the outer iron ring of pivot, casing and annular magnet steel between be provided with the cooling heat conduction cover, the cooling heat conduction cover is outer along the length direction annular distribution of cooling heat conduction cover has the spiral cooling tube, one side of spiral cooling tube is connected with the water inlet, the other end of spiral cooling tube is connected with the delivery port, is provided with the water storage bin in the below of casing, the water storage bin is connected with the water inlet through the circulating pump, the delivery port is connected with the water storage bin, is provided with the temperature detector who is located the casing in the pivot, still overlaps in the pivot that stretches out the right side end cover has the radiator fan. The invention improves the heat dissipation effect.

Description

Compact DC motor

Technical Field

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

Background

The dc motor (direct current machine) is a rotating electrical machine capable of converting dc electric energy into mechanical energy (dc motor) or converting mechanical energy into dc electric energy (dc generator). The motor can realize the mutual conversion of direct-current electric energy and mechanical energy. When the motor is operated as a DC motor, the motor converts electric energy into mechanical energy; when the generator operates as a direct current generator, mechanical energy is converted into electric energy.

The current general direct current motor has the following problems:

1. the fan is arranged on the shell of the output end of the motor, the input end of the motor is provided with a large shutter vent, and the output end of the motor is provided with a smaller vent, but in order to match the layout of other machines, pipelines and the like, some users need to arrange the fan on the shell of the input end, and the motor cannot cool enough cooling air due to the smaller vent of the output end, so that the temperature rise of the direct current motor is high, the insulation of the motor is easy to damage, and the service life of the motor is shortened;

2. the existing direct current motor has the problems of complex overall structure layout and incompact structure.

Disclosure of Invention

The invention aims to provide a compact direct current motor so as to solve the problems that the overall structure layout is complex and not compact, and the service life of the motor is reduced due to overhigh temperature in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a compact direct current motor, includes the casing, is provided with the stator in the casing, the stator comprises annular magnet steel that annular distributes, is provided with the rotor in annular magnet steel, is provided with left side end cover and the right side end cover as the brush holder respectively at the both ends of casing, the rotor include the part and stretch out the pivot of right side end cover, annular distribution has more than one arc iron core outside the pivot, the surface cooperation of all arc iron cores constitutes one and encircles the outer iron ring in the pivot, casing and annular magnet steel between be provided with the cooling heat conduction cover, the outside spiral cooling tube that has along the length direction annular distribution of cooling heat conduction cover, one side of spiral cooling tube is connected with the water inlet, the other end of spiral cooling tube is connected with the delivery port, is provided with the water storage bin in the below of casing, the water storage bin is connected with the water inlet through the circulating pump, the delivery port is connected with the water storage bin, is provided with the temperature detector that is located the casing in the pivot, still overlaps the radiator fan in the pivot that stretches out the right side end cover.

Further, be equipped with the cushion collar on the casing, annular distribution has more than one and the first bolster that the casing offset in the cushion collar, first bolster is including the fat body that is located the center and the thin body that is located fat body both ends, and thin body one end in both ends is connected with the cushion collar inner wall, thin body other end and casing outer wall connection are provided with the second bolster of semicircle in the below of casing, be provided with the circular arc recess that offsets with first bolster lower extreme outer wall on the second bolster, be provided with more than one hard strengthening rib in the second bolster, set up through above-mentioned structure and improve the cushioning effect.

Further, a rotating speed detector for detecting the rotating speed of the rotating shaft is further arranged on the rotating shaft, a controller electrically connected with the rotating speed detector is arranged on the side edge of the shell, and a built-in speed reducer for controlling the rotating speed of the rotating shaft of the motor is further connected to the rotating shaft of the motor.

Further, the thin body and the buffer sleeve are in detachable connection in a matched mode, and the first buffer piece can be conveniently replaced in the later period through the structure so as to improve the buffer effect.

Further, be provided with the connection buffer strip that more than one interval set up between second bolster and the casing, further improve the buffering effect through above-mentioned structure.

Further, still overlap outside the casing has the sound proof housing, is provided with the puigging in the sound proof housing, improves the sound insulation effect through above-mentioned structure.

Furthermore, the annular magnetic steel is fixed in the cooling heat conduction cover in a mode of viscose after being wound into a cylinder shape by the magnetic material, and the structure is convenient to install.

Further, the pivot overcoat have the iron core support, the outer coin of iron core support you annular distribution has more than one T shape draw-in groove, the arc iron core on be provided with the connecting plate, be connected with the T shape cutting that can insert in the T shape draw-in groove at the other end of connecting plate, be provided with the one deck ferromagnetic layer in the outside of T shape cutting, be provided with at T shape draw-in groove inner wall with ferromagnetic layer complex iron sheet, set up through above-mentioned structure and make things convenient for later stage dismantlement to change inside enameled wire.

Furthermore, the annular magnetic steel is made of high-performance neodymium iron boron magnetic materials, and the final operation performance is improved through the structure arrangement.

The technical effects of the compact direct current motor obtained by the invention are as follows:

1. firstly, a cooling heat conduction cover is additionally arranged in the shell 1, and a spiral cooling pipe is arranged outside the cooling heat conduction cover to realize the circulation cooling effect on the inside of the motor, so that the problem of damage caused by overhigh temperature of the motor is avoided;

2. the heat dissipation fan is sleeved on the rotating shaft 7, so that the heat dissipation of the periphery of the rotating shaft is further improved, and the heat dissipation effect is improved;

3. through setting up brush holder and right side end cover into integrated into one piece, the brush is established to the later stage again to make whole structural layout compacter, simple structure.

Drawings

Fig. 1 is a schematic exploded view of a compact dc motor according to embodiment 1;

fig. 2 is a side view of the housing in this embodiment 2;

fig. 3 is a schematic exploded view of the compact dc motor according to embodiment 3;

fig. 4 is a side view of the housing in this embodiment 4;

fig. 5 is a side view of the rotary shaft in this embodiment 5.

In the figure: the novel energy-saving cooling device comprises a shell 1, a stator 2, a rotor 3, a left end cover 4, a water outlet 5, a right end cover 6, a rotating shaft 7, an arc-shaped iron core 8, an enameled wire 9, a cooling heat conduction cover 10, a spiral cooling pipe 11, a water inlet 12, a water storage bin 13, a circulating pump 14, a temperature detector 15, a cooling fan 16, a buffer sleeve 17, a first buffer piece 18, a fat body 19, a thin body 20, a second buffer piece 21, an arc-shaped groove 22, a hard reinforcing rib 23, a rotating speed detector 24, a controller 25, a built-in speed reducer 26, a connecting buffer strip 27, a sound insulation cover 28, a sound insulation layer 29, an iron core bracket 30, a T-shaped clamping groove 32, a connecting plate 33, T-shaped inserting strips 34, a ferromagnetic layer 35 and an iron sheet 36.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

as shown in fig. 1, this embodiment provides a compact dc motor, which comprises a housing 1, a stator 2 is disposed in the housing 1, the stator 2 is formed by annular magnetic steel distributed in an annular manner, a rotor 3 is disposed in the annular magnetic steel, a left end cover 4 and a right end cover 6 serving as a brush holder are disposed at two ends of the housing 1, the rotor 3 includes a rotating shaft 7 partially extending out of the right end cover 6, more than one arc-shaped iron core 8 is disposed in the outer annular manner of the rotating shaft 7, enameled wires (not shown in the figure) cutting magnetic lines are disposed at the connection position of the arc-shaped iron core 8 and the rotating shaft 7, an iron ring surrounding the rotating shaft 7 is formed by the surface of all the arc-shaped iron cores 8 in a matching manner, a cooling heat conducting cover 10 is disposed between the housing 1 and the annular magnetic steel, a spiral cooling pipe 11 is disposed outside the cooling heat conducting cover 10 along the length direction of the cooling heat conducting cover 10, one side of the spiral cooling pipe 11 is connected with a water inlet 12, the other end of the spiral cooling pipe 11 is connected with a water outlet 5, a water storage bin 13 is disposed below the housing 1, and the water storage bin 13 is disposed through a circulation pump 14

The water inlet 12 is connected, the water outlet 5 is connected with the water storage bin 13, the rotating shaft 7 is provided with a temperature detector 15 positioned in the shell 1, and the rotating shaft 7 extending out of the right end cover 6 is also sleeved with a cooling fan 16.

Further, the annular magnetic steel is fixed in the cooling heat conduction cover 10 in a manner of viscose after the magnetic material is wound into a cylinder shape, and the structure is convenient to install.

The structure has the following advantages:

1. firstly, a cooling heat conduction cover 10 is additionally arranged in a shell 1, and a spiral cooling pipe 11 is arranged outside the cooling heat conduction cover 10 to realize the circulation cooling effect on the inside of the motor, so that the problem of damage caused by overhigh temperature of the motor is avoided;

2. the heat dissipation fan 16 is sleeved on the rotating shaft 7, so that the heat dissipation of the periphery of the rotating shaft 7 is further improved, and the heat dissipation effect is improved;

3. through setting up brush holder and right side end cover 6 into integrated into one piece, the brush is established to the later stage again to make whole structural layout compacter, simple structure.

Example 2:

as shown in fig. 2, this embodiment provides a compact dc motor, further, a buffer sleeve 17 is provided on the housing 1, more than one first buffer member 18 with one end abutting against the housing 1 is annularly distributed in the buffer sleeve 17, the first buffer member 18 includes a fat body 19 located in the center and a thin body 20 located at two ends of the fat body 19, one end of the thin body 20 at two ends is connected with the inner wall of the buffer sleeve 17, the other end of the thin body 20 is connected with the outer wall of the housing 1, a semicircular second buffer member 21 is provided below the housing 1, a circular arc groove 22 abutting against the outer wall of the lower end of the first buffer member 18 is provided on the second buffer member 21, and more than one rigid reinforcing rib 23 is provided in the second buffer member 21, so that the buffering effect is improved through the above structure.

Further, the thin body 20 and the buffer sleeve 17 are detachably connected, and the first buffer member 18 can be conveniently replaced at a later stage through the structure so as to improve the buffer effect.

Further, more than one connecting buffer strips 27 are arranged between the second buffer member 21 and the casing 1 at intervals, and the buffer effect is further improved through the structure.

Example 3:

as shown in fig. 3, the present embodiment provides a compact dc motor, further, a rotation speed detector 24 for detecting the rotation speed of the rotation shaft 7 is further disposed on the rotation shaft 7, a controller 25 electrically connected to the rotation speed detector 24 is disposed on the side of the housing 1, a built-in speed reducer 26 for controlling the rotation speed of the rotation shaft 7 of the motor is further connected to the rotation shaft 7 of the motor, the rotation speed of the rotation shaft 7 is monitored in real time through the rotation speed detector 24, then the real-time rotation speed of the rotation shaft is obtained through the controller 25, and then the rotation speed of the motor is changed by controlling the built-in speed reducer 26, so as to meet the preset requirement.

Example 4:

as shown in fig. 4, the present embodiment provides a compact dc motor, further, a soundproof cover 28 is provided outside the housing 1, and a soundproof layer 29 is provided inside the soundproof cover 28, thereby improving the soundproof effect.

Example 5:

as shown in fig. 5, this embodiment provides a compact dc motor, further, the pivot 7 overcoat have iron core support 30, iron core support 30 foreign currency you annular distribution have more than one T-shaped draw-in groove 32, arc iron core 8 on be provided with connecting plate 33, be connected with the T-shaped cutting 34 that can insert in the T-shaped draw-in groove 32 at the other end of connecting plate 33, be provided with one deck ferromagnetic layer 35 in the outside of T-shaped cutting 34, be provided with at T-shaped draw-in groove 32 inner wall with ferromagnetic layer 35 complex iron sheet 36, the enameled wire of changing inside is dismantled through above-mentioned structure setting convenience later stage, and enameled wire 9 cover is outside connecting plate 33.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. The utility model provides a compact direct current motor, includes casing (1), its characterized in that is provided with stator (2) in casing (1), stator (2) are by annular distributed annular magnet steel constitution, are provided with rotor (3) in annular magnet steel, are provided with left side end cover (4) and right side end cover (6) as the brush holder respectively at the both ends of casing (1), rotor (3) including partly stretch out pivot (7) of right side end cover (6), at pivot (7) outer ring distribution have more than one arc iron core (8), the surface cooperation of all arc iron cores (8) constitutes an iron ring around outside pivot (7), casing (1) and annular magnet steel between be provided with cooling heat conduction cover (10), be provided with spiral cooling tube (11) along the length direction annular of cooling heat conduction cover (10) outside cooling heat conduction cover (10), one side of spiral cooling tube (11) is connected with water inlet (12), the other end of spiral cooling tube (11) is connected with delivery port (5), is provided with water inlet (13) in the below casing (1) and is connected with water storage bin (13) through water storage pump (13), a temperature detector (15) positioned in the shell (1) is arranged on the rotating shaft (7), and a heat radiation fan (16) is sleeved on the rotating shaft (7) extending out of the right end cover (6); be equipped with buffer cover (17) on casing (1), annular distribution has first bolster (18) that more than one end offset with casing (1) in buffer cover (17), first bolster (18) are including being located fat body (19) at center and being located fat body (19) both ends thin body (20), thin body (20) one end in both ends and buffer cover (17) inner wall connection, thin body (20) other end and casing (1) outer wall connection are provided with semicircle second bolster (21) in the below of casing (1), be provided with circular arc recess (22) that offset with first bolster (18) lower extreme outer wall on second bolster (21), be provided with hard strengthening rib (23) more than one in second bolster (21).

2. A compact dc motor as recited in claim 1, characterised in that: the rotating shaft (7) is also provided with a rotating speed detector (24) for detecting the rotating speed of the rotating shaft (7), the side edge of the shell (1) is provided with a controller (25) electrically connected with the rotating speed detector (24), and the rotating shaft (7) of the motor is also connected with a built-in speed reducer (26) for controlling the rotating speed of the rotating shaft (7) of the motor.

3. A compact dc motor as recited in claim 1, characterised in that: the thin body (20) is detachably connected with the buffer sleeve (17) in a matching way.

4. A compact dc motor as recited in claim 1, characterised in that: more than one connecting buffer strip (27) which are arranged at intervals are arranged between the second buffer piece (21) and the shell (1).

5. A compact dc motor as recited in claim 1, characterised in that: a sound-proof cover (28) is sleeved outside the shell (1), and a sound-proof layer (29) is arranged in the sound-proof cover (28).

6. A compact dc motor as recited in claim 1, characterised in that: the annular magnetic steel is fixed in the cooling heat conduction cover (10) in a manner of viscose after the magnetic material is wound into a cylinder shape.

7. A compact dc motor as recited in claim 1, characterised in that: the utility model discloses a T-shaped iron core structure, including pivot (7), iron core support (30) foreign currency you annular distribution have more than one T shape draw-in groove (32), arc iron core (8) on be provided with connecting plate (33), be connected with T shape cutting (34) that can insert in T shape draw-in groove (32) at the other end of connecting plate (33), be provided with one deck ferromagnetic layer (35) in the outside of T shape cutting (34), be provided with at T shape draw-in groove (32) inner wall with ferromagnetic layer (35) complex iron sheet (36).

8. A compact dc motor as recited in any of claims 1-7, characterised in that: the annular magnetic steel is made of high-performance neodymium iron boron magnetic materials.