Hall assembly mounting structure for permanent magnet synchronous motor

Abstract

The invention discloses a Hall assembly mounting structure for a permanent-magnet synchronous motor, relates to the technical field of permanent-magnet synchronous motor parts, and aims to solve the problems that in the background technology, a sizing material needs to be specially smeared, the phenomenon of sizing material seepage is likely to occur, mounting is inconvenient, meanwhile, a Hall element cannot be quickly disassembled, and the cost is low. In order to solve the problems of inconvenience in Hall element replacement and low practicability in the prior art, the invention provides the following scheme: the Hall sensor comprises a shell and a rotor module, the shell comprises a shell and an inner end cover fixedly arranged on the inner wall of the middle part of the shell, the rotor module comprises a rotor iron core and a connecting column fixedly arranged on the outer wall of one end of the rotor iron core, and a mounting hole is formed in the outer wall of one side of the inner end cover; and a mounting mechanism is arranged in the mounting hole and comprises a mounting frame inserted into the mounting hole and a Hall element slidably sleeved in the mounting frame. The Hall element can be rapidly installed and fixed, meanwhile, the Hall element can be conveniently detached, replacement is convenient, and practicability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet synchronous motor parts, and in particular to a Hall component installation structure for a permanent magnet synchronous motor. Background Art

[0002] Hall element is a magnetic sensor based on Hall effect. It can detect magnetic field and its changes and can be used in various occasions related to magnetic field. Hall element has many advantages. They are strong in structure, small in size, light in weight, long in life, easy to install, low in power consumption, high in frequency (up to 1MHZ), vibration-resistant, and not afraid of pollution or corrosion from dust, oil, water vapor and salt spray. The so-called Hall effect refers to the physical phenomenon that a transverse potential difference is generated when a magnetic field acts on the carriers in a current-carrying metal conductor or semiconductor. The Hall effect of metal was discovered by American physicist Hall in 1879. When current passes through a metal foil, if a magnetic field is applied in a direction perpendicular to the current, a transverse potential difference will appear on both sides of the metal foil. The Hall effect in semiconductors is more obvious than in metal foils, and ferromagnetic metals will show a very strong Hall effect below the Curie temperature.

[0003] Permanent magnet synchronous motors use permanent magnets to provide excitation, which makes the motor structure simpler, reduces processing and assembly costs, and eliminates collector rings and brushes that are prone to problems, thereby improving the reliability of motor operation. Because no excitation current is required and there is no excitation loss, the efficiency and power density of the motor are improved. Permanent magnet synchronous motors are composed of stators, rotors, end covers and other components. The stator is basically the same as an ordinary induction motor. A laminated structure is used to reduce iron loss during motor operation. The rotor can be made solid or laminated. The armature winding can be a concentrated full-pitch winding, or a distributed short-pitch winding and an unconventional winding.

[0004] Permanent magnet synchronous motors in the prior art usually use glue to fix the Hall components. Although this method has a certain fixing effect, the glue needs to be specially applied and is prone to glue seepage, which makes installation inconvenient. In addition, the Hall components cannot be quickly disassembled and replaced, which has low practicality. Summary of the invention

[0005] The present invention provides a Hall component installation structure for a permanent magnet synchronous motor, which solves the problems in the prior art that when installing the Hall element of the permanent magnet synchronous motor, rubber needs to be specially applied, rubber seepage is prone to occur, installation is inconvenient, the Hall element cannot be quickly disassembled, the Hall element is inconvenient to replace, and the practicality is low.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A Hall component mounting structure for a permanent magnet synchronous motor comprises a housing and a rotor module, wherein the housing comprises a shell and an inner end cover fixedly mounted on the inner wall of the middle part of the shell, the rotor module comprises a rotor core and a connecting column fixedly mounted on the outer wall of one end of the rotor core, a mounting hole is opened on the outer wall of one side of the inner end cover, and a mounting mechanism is arranged in the mounting hole, the mounting mechanism comprises a mounting frame inserted into the mounting hole and a Hall element slidably mounted in the mounting frame, fixing components are arranged on both sides of the mounting frame, the fixing components comprise a limiting cylinder fixedly mounted on the outer wall of one side of the mounting frame, a reset spring and a clamping block sleeved in the limiting cylinder, a control module is arranged in the housing, the control module comprises a plurality of arc-shaped mounting plates and a circuit board connected to the outer wall of the top of one of the mounting plates by bolts, a heat dissipation mechanism is arranged in the housing, the heat dissipation mechanism comprises a mounting block, a connecting rod penetrating and connected to the outer wall of one side of the mounting block by a bearing, and a fan blade connected to the outer wall of one end of the connecting rod by bolts.

[0008] Preferably, a flange is fixed on the inner wall at one end of the shell, and a stator is embedded on the inner wall at one end of the shell. A rear end cover is connected to the outer wall of the shell away from the flange by bolts, and air outlet holes are evenly distributed on the outer wall of one side of the rear end cover.

[0009] Preferably, a first bearing is fixedly provided on the outer wall of one end of the rotor core, and a first fixing ring is sleeved on the outer wall of the first bearing, a front end cover is connected to the outer wall of one side of the flange by bolts, and the first fixing ring is connected to the outer wall of one side of the front end cover by bolts, a rotor magnet is fixedly provided on the outer wall of the middle part of the rotor core, a second bearing is fixedly provided on the outer wall of one end of the rotor core, and a second fixing ring is sleeved on the outer wall of the second bearing, a connecting ring is connected to the outer wall of one side of the inner end cover by bolts, and the second fixing ring is connected to the outer wall of one side of the connecting ring by bolts, and the connecting column is a regular hexagonal structure.

[0010] Preferably, channels are provided on both outer walls of the installation frame, and a limit frame is fixedly provided on one outer wall of the installation frame, and fixing grooves of right-angled trapezoidal structures are provided on both outer walls of the Hall element.

[0011] Preferably, a cylinder cover is connected to the outer wall of one side of the limiting cylinder by bolts, the clamping block is slidably sleeved in the channel, and the outer diameter of the clamping block is adapted to the inner diameter of the limiting cylinder, one side of the clamping block abuts against the outer wall of one end of the reset spring, and one end of the reset spring abuts against the outer wall of one side of the cylinder cover.

[0012] Preferably, a plurality of fixing blocks are fixedly provided on the inner wall of the shell body close to the rear end cover, and the mounting plate is connected to the outer walls of three of the fixing blocks by bolts, and the pins of the Hall element are fixedly provided on the outer wall at the top of the circuit board.

[0013] Preferably, both ends of the mounting block are fixed on the outer walls of the two mounting plates on opposite sides, a connecting groove with a regular hexagonal structure is opened on the outer wall of one end of the connecting rod, and the connecting column is inserted into the connecting groove.

[0014] The beneficial effects of the present invention are:

[0015] The Hall element is inserted into the installation frame. When the Hall element moves, the card block is squeezed, so that the card block moves and squeezes the reset spring. When the Hall element moves to a suitable position, the card block is clamped in the fixing grooves on both sides of the Hall element under the action of the tension of the reset spring. The installation frame is squeezed into the installation hole, and the pins of the Hall element are welded to the circuit board by soldering. The Hall element can be quickly installed and fixed, and the Hall element can be conveniently disassembled for easy replacement, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall front view of a Hall assembly installation structure for a permanent magnet synchronous motor proposed by the present invention.

[0017] Figure 2 The present invention is a schematic diagram of the overall cross-sectional structure of a Hall assembly installation structure for a permanent magnet synchronous motor.

[0018] Figure 3 The present invention proposes Figure 2 Enlarged structural diagram at A in the middle.

[0019] Figure 4 The present invention provides a schematic diagram of the cross-sectional structure of a shell of a Hall assembly installation structure for a permanent magnet synchronous motor.

[0020] Figure 5 This is a schematic diagram of the main structure of a rotor module of a Hall assembly installation structure for a permanent magnet synchronous motor proposed by the present invention.

[0021] Figure 6 This is a schematic diagram of the main structure of the mounting mechanism of a Hall assembly mounting structure for a permanent magnet synchronous motor proposed by the present invention.

[0022] Figure 7 This is an exploded view of the fixed components of the Hall component installation structure for a permanent magnet synchronous motor proposed by the present invention.

[0023] Figure 8 This is a schematic diagram of the main structure of a control module of a Hall assembly installation structure for a permanent magnet synchronous motor proposed by the present invention.

[0024] Fig. 9 This is a schematic diagram of the main structure of a heat dissipation mechanism of a Hall assembly installation structure for a permanent magnet synchronous motor proposed by the present invention.

[0025] In the figure: 1. outer shell; 101. shell; 102. flange; 103. stator; 104. inner end cover; 105. rear end cover; 2. rotor module; 201. rotor core; 202. first bearing; 203. first fixing ring; 204. front end cover; 205. rotor magnet; 206. second bearing; 207. second fixing ring; 208. connecting ring; 209. connecting column; 3. mounting mechanism; 301. mounting frame; 302. limit frame; 303. Hall element; 4. fixing assembly; 401. limit cylinder; 402. cylinder cover; 403. reset spring; 404. clamping block; 5. fixing block; 6. control module; 601. mounting plate; 602. circuit board; 7. heat dissipation mechanism; 701. mounting block; 702. connecting rod; 703. fan blade. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1, reference Figure 1-5 A Hall assembly installation structure for a permanent magnet synchronous motor includes a housing 1 and a rotor module 2. The housing 1 includes a housing 101 and an inner end cover 104 fixedly arranged on the inner wall of the middle part of the housing 101. A flange 102 is fixedly arranged on the inner wall of one end of the housing 101. A stator 103 is embedded on the inner wall of one end of the housing 101. A rear end cover 105 is connected to the outer wall of one end of the housing 101 away from the flange 102 by bolts. An outer wall of one side of the rear end cover 105 is provided with air outlet holes distributed at equal distances. The rotor module 2 includes a rotor core 201 and a connecting column 209 fixedly arranged on the outer wall of one end of the rotor core 201. A first outer wall of one end of the rotor core 201 is fixedly arranged. Bearing 202, a first fixing ring 203 is sleeved on the outer wall of the first bearing 202, a front end cover 204 is connected to the outer wall of one side of the flange 102 by bolts, the first fixing ring 203 is connected to the outer wall of one side of the front end cover 204 by bolts, a rotor magnet 205 is fixed on the outer wall of the middle part of the rotor core 201, a second bearing 206 is fixed on the outer wall of one end of the rotor core 201, a second fixing ring 207 is sleeved on the outer wall of the second bearing 206, a connecting ring 208 is connected to the outer wall of one side of the inner end cover 104 by bolts, the second fixing ring 207 is connected to the outer wall of one side of the connecting ring 208 by bolts, and the connecting column 209 is a regular hexagonal structure.

[0028] Example 2, reference Figure 6-8A Hall component mounting structure for a permanent magnet synchronous motor also includes a mounting hole on the outer wall of one side of an inner end cover 104, a mounting mechanism 3 is arranged in the mounting hole, the mounting mechanism 3 includes a mounting frame 301 inserted into the mounting hole and a Hall element 303 slidably sleeved in the mounting frame 301, channels are opened on the outer walls on both sides of the mounting frame 301, a limit frame 302 is fixedly arranged on the outer wall of one side of the mounting frame 301, and a fixing groove of a right-angled trapezoidal structure is opened on the outer walls on both sides of the Hall element 303, and fixing components 4 are arranged on both sides of the mounting frame 301, and the fixing components 4 include a limit cylinder 401 fixedly arranged on the outer wall of one side of the mounting frame 301, a reset spring 403 and a clamping block 404 sleeved in the limit cylinder 401, and a cylinder cover 402 is connected to the outer wall of one side of the limit cylinder 401 by bolts, and the clamping block 404 is provided. The block 404 is slidably sleeved in the channel, the outer diameter of the block 404 is matched with the inner diameter of the limiting tube 401, one side of the block 404 abuts against the outer wall of one end of the reset spring 403, and one end of the reset spring 404 abuts against the outer wall of one side of the tube cover 402. Through holes are opened on the outer walls on both sides of the mounting hole, and the limiting tube 401 can smoothly pass through the through holes. A plurality of fixing blocks 5 are fixedly arranged on the inner wall of the shell 101 near the rear end cover 105, and a control module 6 is arranged in the shell 101. The control module 6 includes a plurality of arc-shaped mounting plates 601 and a circuit board 602 connected to the outer wall at the top of one of the mounting plates 601 by bolts. The mounting plate 601 is connected to the outer walls of three of the fixing blocks 5 by bolts, and the pins of the Hall element 303 are fixedly arranged on the outer wall at the top of the circuit board 602.

[0029] Example 3, reference Fig. 9 A Hall assembly mounting structure for a permanent magnet synchronous motor also includes a heat dissipation mechanism 7, which includes a mounting block 701, a connecting rod 702 that penetrates and is connected to the outer wall of one side of the mounting block 701 through a bearing, and a fan blade 703 that is connected to the outer wall of one end of the connecting rod 702 through bolts. The two ends of the mounting block 701 are respectively fixed on the outer walls of the opposite sides of two mounting plates 601. A connecting groove with a regular hexagonal structure is opened on the outer wall of one end of the connecting rod 702, and a connecting column 209 is inserted into the connecting groove.

[0030] The Hall element 303 is inserted into the installation frame 301. When the Hall element 303 moves, it squeezes the block 404, so that the block 404 moves and squeezes the reset spring 403. When the Hall element 404 moves to a suitable position, the block 404 is clamped in the fixed grooves on both sides of the Hall element 404 under the action of the tension of the reset spring 403. The installation frame 301 is squeezed into the installation hole, and the pins of the Hall element 404 are soldered to the circuit board 602 by soldering. The connecting column 209 is inserted into the connecting groove on the connecting rod 702. When the rotor core 201 rotates, the fan blades 703 are driven to rotate, and then the hot air is transported to the outside of the shell 101.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A Hall assembly installation structure for a permanent magnet synchronous motor, comprising a housing (1) and a rotor module (2), characterized in that: The housing (1) comprises a shell (101) and an inner end cover (104) fixedly arranged on the inner wall of the middle part of the shell (101); the rotor module (2) comprises a rotor core (201) and a connecting column (209) fixedly arranged on the outer wall of one end of the rotor core (201); A mounting hole is formed on an outer wall of one side of the inner end cover (104), and a mounting mechanism (3) is provided in the mounting hole. The mounting mechanism (3) comprises a mounting frame (301) inserted into the mounting hole and a Hall element (303) slidably sleeved in the mounting frame (301); Both sides of the installation frame (301) are provided with fixing components (4), and the fixing components (4) include a limiting cylinder (401) fixedly arranged on the outer wall of one side of the installation frame (301), a return spring (403) sleeved in the limiting cylinder (401), and a clamping block (404); A control module (6) is provided in the housing (101), and the control module (6) comprises a plurality of arc-shaped mounting plates (601) and a circuit board (602) connected to the top outer wall of one of the mounting plates (601) by bolts; A heat dissipation mechanism (7) is provided in the housing (101), and the heat dissipation mechanism (7) comprises a mounting block (701), a connecting rod (702) penetrating through and connected to an outer wall of one side of the mounting block (701) via a bearing, and a fan blade (703) connected to the outer wall of one end of the connecting rod (702) via a bolt.

2. A Hall assembly installation structure for a permanent magnet synchronous motor according to claim 1, characterized in that: A flange (102) is fixedly provided on the inner wall at one end of the shell (101), and a stator (103) is embedded on the inner wall at one end of the shell (101); a rear end cover (105) is connected to the outer wall at one end of the shell (101) away from the flange (102) by bolts, and air outlet holes are opened on one side of the outer wall of the rear end cover (105) at equal distances.

3. A Hall assembly installation structure for a permanent magnet synchronous motor according to claim 2, characterized in that: A first bearing (202) is fixedly arranged on the outer wall of one end of the rotor core (201), and a first fixing ring (203) is sleeved on the outer wall of the first bearing (202); a front end cover (204) is connected to the outer wall of one side of the flange (102) by bolts, and the first fixing ring (203) is connected to the outer wall of one side of the front end cover (204) by bolts; a rotor magnet (205) is fixedly arranged on the outer wall of the middle part of the rotor core (201); a second bearing (206) is fixedly arranged on the outer wall of one end of the rotor core (201), and a second fixing ring (207) is sleeved on the outer wall of the second bearing (206); a connecting ring (208) is connected to the outer wall of one side of the inner end cover (104) by bolts, and the second fixing ring (207) is connected to the outer wall of one side of the connecting ring (208) by bolts; and the connecting column (209) is a regular hexagonal structure.

4. The Hall assembly installation structure for a permanent magnet synchronous motor according to claim 1, characterized in that: The outer walls on both sides of the installation frame (301) are provided with channels, and a limit frame (302) is fixedly arranged on one outer wall of the installation frame (301), and the outer walls on both sides of the Hall element (303) are provided with fixing grooves of right-angled trapezoidal structure.

5. The Hall assembly installation structure for a permanent magnet synchronous motor according to claim 4, characterized in that: A cylinder cover (402) is connected to the outer wall of one side of the limiting cylinder (401) by bolts, the clamping block (404) is slidably sleeved in the channel, and the outer diameter of the clamping block (404) is adapted to the inner diameter of the limiting cylinder (401), one side of the clamping block (404) abuts against the outer wall of one end of the return spring (403), and one end of the return spring (404) abuts against the outer wall of one side of the cylinder cover (402).

6. The Hall assembly installation structure for a permanent magnet synchronous motor according to claim 2, characterized in that: A plurality of fixing blocks (5) are fixedly arranged on the inner wall of the housing (101) close to the rear end cover (105), and the mounting plate (601) is connected to the outer walls of three of the fixing blocks (5) by bolts, and the pins of the Hall element (303) are fixedly arranged on the outer wall at the top of the circuit board (602).

7. The Hall assembly installation structure for a permanent magnet synchronous motor according to claim 1, characterized in that: The two ends of the mounting block (701) are respectively fixed on the outer walls of the two mounting plates (601) on the opposite sides. A connecting groove with a regular hexagonal structure is opened on the outer wall of one end of the connecting rod (702), and the connecting column (209) is inserted into the connecting groove.

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