Permanent magnet direct current motor structure with segmented structure

Abstract

The utility model relates to the technical field of permanent magnet direct-current motors, and particularly discloses a permanent magnet direct-current motor structure with a segmented structure, which comprises a shell, and a rotating shaft is embedded and rotatably mounted in the shell; a fixing mechanism is arranged in the shell, and the fixing mechanism is characterized in that a plurality of sleeves are installed on the inner wall of the shell, stators are continuously installed in the sleeves at equal intervals, mica sheets are connected to the tail ends of the sleeves, sliding grooves are formed in the surfaces of one sides of the sleeves in an embedded mode, and springs are installed in the sleeves in an embedded mode. According to the permanent magnet direct current motor structure with the segmented structure, a fixing structure is arranged, stator sleeves are isolated through mica sheets, eddy current loss is reduced, the two sleeves are attached at the same time, a limiting block on one side is inserted into a groove of the sleeve on the other side at the moment, the limiting blocks are clamped with clamping blocks by rotating the sleeves, and therefore the permanent magnet direct current motor structure with the segmented structure is formed. And the two sleeves can be assembled, so that the use convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet DC motor technology, specifically to a permanent magnet DC motor structure with a segmented structure. Background Technology

[0002] Permanent magnet DC motors mainly consist of a stator, rotor, brushes, and commutator. Based on the presence or absence of brushes, they can be divided into permanent magnet brushless DC motors and permanent magnet brushed DC motors. A permanent magnet DC motor is a type of DC motor that uses permanent magnets to create a magnetic field. A permanent magnet brushless DC motor uses one or more permanent magnets to create a magnetic field. Its performance is similar to that of a separately excited DC motor with a constant excitation current. Speed ​​can be easily adjusted by changing the armature voltage. Compared to separately excited DC motors, it has advantages such as small size, high efficiency, simple structure, and less copper usage, making it a major type of low-power DC motor. A permanent magnet brushless DC motor consists of the motor body and a driver, making it a typical mechatronic product. However, existing permanent magnet DC motors are mostly one-piece structures, resulting in high eddy current losses, making assembly inconvenient and use less convenient. Utility Model Content

[0003] The purpose of this invention is to provide a permanent magnet DC motor structure with a segmented structure, in order to solve the problems mentioned in the background art, which are mostly integrated structures, have high eddy current losses, are inconvenient to assemble, and are inconvenient to use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a permanent magnet DC motor structure with a segmented structure, including a housing, wherein a rotating shaft is rotatably mounted inside the housing;

[0005] The housing has a fixing mechanism inside, which includes: multiple sleeves installed on the inner wall of the housing, stators continuously and equidistantly installed inside the sleeves, mica sheets connected to the ends of the sleeves, a sliding groove embedded in one side surface of the sleeves, a spring embedded inside the sleeves, a limit block connected to the end of the springs, a locking block installed on one side surface of the sleeves, a partition plate provided on one side of the housing, a fan connected to the surface of the rotating shaft, and pipes embedded in the inner wall of the housing.

[0006] Preferably, the outer casing and the rotating shaft are rotatably connected, and the fan is disposed between the partition and the outer casing, and the fan and the outer casing are rotatably connected.

[0007] Using the above technical solution, an external motor drives the rotating shaft to rotate, causing the shaft to rotate inside the outer casing.

[0008] Preferably, the sleeve is configured as a hollow cylindrical structure, and the sleeve is fitted onto the outer side of the outer shell, while the stator is mounted on the inner wall surface of the sleeve.

[0009] With the above technical solution, the stator end corresponds to the stator surface of the rotating shaft.

[0010] Preferably, the mica sheet is disposed between two adjacent sleeves, and the sleeves and the limiting block are slidably connected.

[0011] Using the above technical solution, mica sheets can be used to arrange the stators and to divide the stators into layers.

[0012] Preferably, the limiting block is disposed inside the slide groove, and one side surface of the limiting block is configured as an arc-shaped structure.

[0013] Using the above technical solution, when the limiting block is squeezed, it compresses the spring, causing the limiting block to move from the slide groove into the inner wall of the sleeve.

[0014] Preferably, one side surface of the card block is configured as an arc-shaped structure, and the card block is disposed inside the groove of the sleeve on the other side, and the groove and the card block are slidably connected, and the arc-shaped end of the card block is correspondingly disposed with the arc-shaped end of the limiting block.

[0015] Using the above technical solution, when the end of the card block moves to the end of the limiting block, the card block presses inward against the limiting block.

[0016] Preferably, one side of the pipe is disposed through a partition on the side of the fan, and the surface of the pipe is provided with multiple air outlets, and the air outlets of the pipe are disposed inside the inner wall of the outer casing.

[0017] Using the above technical solution, the fan drives the gas to move into the pipe, so that the gas enters the casing through the pipe and the air outlet, and dissipates heat from multiple angles inside.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the permanent magnet DC motor structure with segmented structure:

[0019] 1. A fixed structure is set up to isolate the stator sleeves with mica sheets, reducing eddy current losses and bringing the two sleeves together. At this time, a limiting block on one side is inserted into the groove of the other sleeve. By rotating the sleeve, the limiting block and the locking block are engaged, which can assemble the two sleeves and improve the convenience of the device.

[0020] 2. A duct is installed. When the fan rotates, it draws air into the duct, causing the gas to flow within it. The air is then diffused into the outer casing through the duct's outlet, cooling the interior of the casing from multiple angles and positions, thus improving the device's cooling effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal installation structure of the outer shell of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the stator mounting of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the slide rail installation of this utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional mounting structure of the limiting block of this utility model.

[0026] In the diagram: 10, outer casing; 20, pivot.

[0027] 30. Sleeve; 301. Stator; 302. Mica sheet; 303. Slide groove; 304. Spring; 305. Limit block; 306. Locking block;

[0028] 40. Fan; 401. Partition; 402. Pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a permanent magnet DC motor structure with a segmented structure, including a housing 10, a rotating shaft 20, a sleeve 30, a stator 301, a mica sheet 302, a sliding groove 303, a spring 304, a limiting block 305, a locking block 306, a fan 40, a partition 401, and a pipe 402.

[0031] The permanent magnet DC motor structure facilitates the assembly of the sleeves 30. The specific implementation method is as follows:

[0032] A rotating shaft 20 is rotatably mounted inside the outer casing 10. A fixing mechanism is provided inside the outer casing 10, comprising: multiple sleeves 30 mounted on the inner wall of the outer casing 10; stators 301 continuously and equidistantly mounted inside the sleeves 30; mica sheets 302 connected to the ends of the sleeves 30; a sliding groove 303 embedded on one side surface of the sleeves 30; a spring 304 embedded inside the sleeves 30; a limit block 305 connected to the end of the spring 304; a locking block 306 mounted on one side surface of the sleeves 30; a partition plate 401 provided on one side of the outer casing 10; a fan 40 connected to the surface of the rotating shaft 20; a pipe 402 embedded in the inner wall of the outer casing 10; a rotatable connection between the outer casing 10 and the rotating shaft 20; the fan 40 positioned between the partition plate 401 and the outer casing 10; and a hollow circular sleeve 30. The sleeve 30 is sleeved and installed on the outside of the outer shell 10, and the stator 301 is installed on the inner wall surface of the sleeve 30. The mica sheet 302 is disposed between two adjacent sleeves 30. The sleeve 30 and the limiting block 305 are slidably connected. The limiting block 305 is disposed inside the slide groove 303, and one side surface of the limiting block 305 is set with an arc-shaped structure. One side surface of the locking block 306 is set with an arc-shaped structure, and the locking block 306 is disposed inside the slide groove 303 of the other sleeve 30. The slide groove 303 and the locking block 306 are slidably connected. The arc-shaped end of the locking block 306 is correspondingly set with the arc-shaped end of the limiting block 305. One side of the pipe 402 penetrates the partition 401 and is disposed on the side of the fan 40. The surface of the pipe 402 is provided with multiple air outlets, and the air outlets of the pipe 402 penetrate the inner wall of the outer shell 10 and are disposed inside the outer shell 10.

[0033] When the two sleeves 30 are placed together, the locking block 306 on one side of the sleeve 30 moves into the groove 303 of the other sleeve 30. Figure 5 The two sleeves 30 are brought into contact with each other. Rotating one sleeve 30 causes the locking block 306 on its surface to slide within the groove 303 on the other side. This causes the arc-shaped side of the locking block 306 to rotate to the surface of the limiting block 305, bringing the limiting block 305 into contact with the arc-shaped side of the locking block 306. At this point, the locking block 306 exerts a pushing force on the limiting block 305, causing the end of the locking block 306 to push the limiting block 305 to move, thus retracting the limiting block 305. 5. Press the spring 304 to move the limiting block 305 into the sleeve 30. At this time, the locking block 306 rotates to the end of the slide groove 303. After the locking block 306 moves out from the top of the limiting block 305, the limiting block 305 is no longer limited. At this time, the spring 304 pushes the limiting block 305 upward to move the limiting block 305 into the slide groove 303. At this time, the limiting block 305 can be fixed between the locking block 306 and the slide groove 303, thus completing the fixation between the two sleeves 30.

[0034] An external motor is connected to one side of the rotating shaft 20. When the motor drives the rotating shaft 20 to rotate, the rotating shaft 20 drives the surface fan 40 to rotate, causing the fan 40 to rotate between the partition 401 and the outer casing 10. This causes outside air to enter the outer casing 10 and the partition 401. At this time, the air enters the inside of the pipe 402 and is transferred to the air outlet of the pipe 402 through the pipe 402. The air inside the pipe 402 is then sprayed out into the inside of the outer casing 10 through the air outlet, thus cooling the inside of the outer casing 10.

[0035] Working principle: When using this permanent magnet DC motor structure with segmented structure, a slide 303, a spring 304, a limit block 305 and a locking block 306 are set to facilitate the assembly of the sleeves 30 and increase the overall practicality.

[0036] 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet DC motor structure with a segmented structure, comprising a housing (10), wherein a rotating shaft (20) is rotatably mounted inside the housing (10); Its features are: The housing (10) is provided with a fixing mechanism, which includes: multiple sleeves (30) installed on the inner wall of the housing (10), stators (301) installed continuously and at equal intervals inside the sleeves (30), mica sheets (302) connected to the end of the sleeves (30), a sliding groove (303) embedded in one side surface of the sleeves (30), a spring (304) embedded in the inside of the sleeves (30), a limit block (305) connected to the end of the spring (304), a locking block (306) installed on one side surface of the sleeves (30), a partition (401) provided on one side of the housing (10), a fan (40) connected to the surface of the rotating shaft (20), and a pipe (402) embedded in the inner wall of the housing (10).

2. The permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: The outer casing (10) is rotatably connected to the rotating shaft (20), and the fan (40) is disposed between the partition (401) and the outer casing (10), and the fan (40) is rotatably connected to the outer casing (10).

3. The permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: The sleeve (30) is configured as a hollow cylindrical structure, and the sleeve (30) is sleeved and installed on the outside of the outer shell (10), and the stator (301) is installed on the inner wall surface of the sleeve (30).

4. The permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: The mica sheet (302) is disposed between two adjacent sleeves (30), and the sleeves (30) are slidably connected to the limiting block (305).

5. A permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: The limiting block (305) is disposed inside the slide groove (303), and one side surface of the limiting block (305) is configured as an arc-shaped structure.

6. The permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: One side surface of the card block (306) is configured as an arc-shaped structure, and the card block (306) is disposed inside the groove (303) of the sleeve (30) on the other side, and the groove (303) and the card block (306) are slidably connected, and the arc-shaped end of the card block (306) is correspondingly disposed with the arc-shaped end of the limiting block (305).

7. A permanent magnet DC motor structure with a segmented structure according to claim 1, characterized in that: The pipe (402) is disposed on one side of the fan (40) through the partition (401), and the surface of the pipe (402) is provided with multiple air outlets, and the air outlets of the pipe (402) penetrate the inner wall of the outer shell (10) and are disposed inside the outer shell (10).

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