Switched reluctance motor with simple structure
By adopting a double-protruding pole structure and a thermal cover combined with a heat dissipation fan blade in the switching reluctance motor, the problems of complex rotor structure and low heat dissipation efficiency are solved, and more efficient heat dissipation and ventilation are achieved, and the service life of the motor is extended.
Patent Information
- Application Number
- CN202323425959.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-15
AI Technical Summary
The rotor structure of existing switched reluctance motors is complex and has low heat dissipation efficiency, which leads to difficulties in production and processing and difficulty in effectively dissipating heat from internal heat.
The double-protruding pole structure and thermal cover are combined with the design of the heat dissipation fan blade, and the rotation is driven by the magnetic force of the stator raised tooth pole and the rotor raised tooth pole, and the heat dissipation effect is enhanced by the heat dissipation fan blade and thermal cover, and the dustproof net is installed and The dustproof mechanism ensures ventilation.
The rotor structure is simplified, the heat dissipation efficiency is improved, the dust is prevented from reducing thermal conductivity, and the motor service life is extended.
Smart Images
Figure CN222282885U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of switched reluctance motors, and more specifically, particularly relates to a switched reluctance motor with a simple structure. Background Art
[0002] The switched reluctance motor is a new type of speed regulation motor and is the latest generation of speed regulation system following the variable frequency speed regulation system and the brushless DC motor speed regulation system.
[0003] The existing switched reluctance motor usually adopts a cylindrical rotor with a multi-layer magnetic barrier structure; thus, magnetic barrier grooves need to be opened in the rotor, resulting in a more complex rotor structure and more time-consuming and labor-intensive processing; and the switched reluctance motor will generate a large amount of heat inside when in use, and the existing switched reluctance motor usually adopts a method of providing a heat sink on the motor casing, and the heat is only dissipated through the heat sink, and the heat dissipation efficiency is low and the heat dissipation inside the motor cannot be timely dissipated; it may cause certain damage to the internal structure of the reluctance motor. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a switched reluctance motor with a simple structure to solve the problem proposed in the above background technology that magnetic barrier slots need to be opened in the rotor, resulting in a more complex rotor structure; and heat is only dissipated through heat sinks, the heat dissipation efficiency is low and the heat dissipation inside the motor cannot be dissipated in time.
[0005] In a first aspect, the present disclosure provides a switched reluctance motor with a simple structure, which is achieved by the following specific technical means:
[0006] A switch reluctance motor with a simple structure comprises a base; a buffer pad is fixedly arranged on the top of the base, and four groups of threaded columns are fixedly arranged on the top of the base, and the four groups of threaded columns completely penetrate the buffer pad; a motor support is slidably arranged between the outer sides of two groups of threaded columns, and the number of motor supports is set to two groups, and a motor housing is fixedly arranged between the two groups of motor supports; nuts are arranged on the outer sides of the threaded columns through threaded connection, and the bottom of the nut is fitted with the top of the motor support; a motor front cover is fixedly arranged on the outer side of one end of the motor housing, and a heat conductive cover is fixedly arranged on the outer side of the other end of the motor housing; a motor rear cover is fixedly arranged on the outer side of the heat conductive cover, and a dustproof net is fixedly arranged inside the motor rear cover; a heat sink and a hanging ring are fixedly arranged on the outer side of the motor housing, and a rotating shaft is rotatably arranged between the motor front cover and the inside of the motor rear cover;
[0007] A junction box structure is fixedly arranged on the outer side of the motor housing, a stator structure is fixedly arranged inside the motor housing, and a rotor structure is fixedly arranged on the outer side of the rotating shaft; a dustproof mechanism is fixedly arranged on the outer side of the motor rear cover.
[0008] In at least some embodiments, heat dissipation fan blades are fixedly disposed on the outer side of the rotating shaft, and the heat dissipation fan blades are located between the heat conductive cover and the motor rear cover.
[0009] In at least some embodiments, the stator structure includes: a stator core, stator raised teeth and coils; the stator core is fixedly arranged inside the motor housing; the stator raised teeth are arranged on the inner side of the stator core through an integrated stamping process, and the stator raised teeth are arranged in a ring array; the coils are fixedly arranged on the outer side of the stator raised teeth.
[0010] In at least some embodiments, the rotor structure includes: a rotor core and rotor raised teeth; the rotor core is fixedly arranged on the outside of the rotating shaft; the rotor raised teeth are arranged on the outside of the rotor core through an integrated stamping process, and the rotor raised teeth are arranged in a ring array.
[0011] In at least some embodiments, the stator core and the rotor core are both formed by laminating silicon steel sheets.
[0012] In at least some embodiments, the junction box structure includes: a junction box body, a box cover, terminal posts, a fixing plate, a wire crimping cap and a wire entry hole; the junction box body is fixedly arranged on the outside of the motor housing; the box cover is fixedly arranged on the outside of the junction box body; the terminal posts are fixedly arranged inside the junction box body, and the terminal posts and the coil are electrically connected; the fixing plate is fixedly arranged on the outside of the terminal posts; the wire crimping cap is arranged on the end of the terminal post by a threaded connection, and the outside of the wire crimping cap is fitted with the outside of the fixing plate; the wire entry hole is opened inside the bottom side of the junction box body.
[0013] In at least some embodiments, the dustproof mechanism includes: a fixed frame, a dustproof shaft, a spiral fan blade and a dustproof brush; the fixed frame is fixedly arranged on the outside of the motor back cover; the dustproof shaft is rotatably arranged inside the fixed frame; the spiral fan blade is fixedly arranged on the outer end of the dustproof shaft; the dustproof brush is fixedly arranged on the inner end of the dustproof shaft, and the outer side of the dustproof brush is in contact with the outer side of the dustproof net.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. In the utility model, stator protruding tooth poles are arranged on the inner side of the stator core, and rotor protruding tooth poles are arranged on the outer side of the rotor core; a double salient pole structure is formed inside the motor, so that when the coil is energized to generate magnetic force on the stator protruding tooth poles, the stator protruding tooth poles will attract the rotor protruding tooth poles to cause them to rotate; it can avoid the rotor adopting a multi-layer magnetic barrier structure, which is conducive to simplifying the structure of the rotor and avoiding the phenomenon of reduced rotor strength due to magnetic barrier grooves on the rotor; thereby reducing the internal structure of the motor and the production and processing efficiency of the motor.
[0016] 2. In the utility model, the heat inside the motor housing can be conducted out by providing a heat-conducting cover, and the heat-dissipating fan blades can be used to effectively dissipate the heat of the heat-conducting cover; thus, the heat dissipation effect can be effectively enhanced by the simultaneous heat dissipation of the heat sink, the heat-conducting cover and the heat-dissipating fan blades, which is beneficial to preventing the phenomenon that the heat inside the motor housing cannot be dissipated in time; the dust-proof net can prevent dust from being adsorbed on the surface of the heat-conducting cover, which is beneficial to preventing the heat-conducting cover from reducing the heat conduction efficiency due to dust coverage; and the dust on the surface of the dust-proof net can be removed by spiral fan blades, dust-proof shafts and dust-proof brushes, which is beneficial to ensuring the ventilation volume between the heat-conducting cover and the rear cover of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0018] Figure 2 It is a structural schematic diagram of the upper surface of the base of the utility model.
[0019] Figure 3 It is a structural schematic diagram of the motor housing of the utility model.
[0020] Figure 4 It is a schematic diagram of the internal structure of the motor housing of the utility model.
[0021] Figure 5 It is a structural schematic diagram of the stator structure and the rotor structure of the utility model.
[0022] Figure 6 It is a structural schematic diagram of the dustproof mechanism of the utility model.
[0023] Figure 7 It is a structural schematic diagram of the junction box structure of the utility model.
[0024] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:
[0025] 1. Base; 101. Buffer pad; 102. Threaded column; 103. Motor support; 104. Nut; 105. Motor housing; 106. Motor front cover; 107. Heat sink; 108. Lifting ring; 109. Heat conductive cover; 1010. Rotating shaft; 1011. Heat dissipation fan blade; 1012. Motor rear cover; 1013. Dust screen;
[0026] 2. stator structure; 201. stator core; 202. stator raised tooth pole; 203. coil;
[0027] 3. Rotor structure; 301. Rotor core; 302. Rotor raised tooth pole;
[0028] 4. Junction box structure; 401. Junction box body; 402. Box cover; 403. Terminal post; 404. Fixing plate; 405. Wire cap; 406. Wire entry hole;
[0029] 5. Dust-proof mechanism; 501. fixing frame; 502. dust-proof shaft; 503. spiral fan blade; 504. dust-proof brush. DETAILED DESCRIPTION
[0030] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.
[0031] Embodiment 1:
[0032] As attached Figure 1 To Attachment Figure 7 As shown:
[0033] The utility model provides a switch reluctance motor with a simple structure, comprising a base 1; a buffer pad 101 is fixedly arranged on the top of the base 1, and four groups of threaded columns 102 are fixedly arranged on the top of the base 1, and the four groups of threaded columns 102 completely penetrate the buffer pad 101; a motor support 103 is slidably arranged between the outer sides of the two groups of threaded columns 102, and the number of the motor supports 103 is set to two groups, and a motor housing 105 is fixedly arranged between the two groups of motor supports 103; a nut 104 is arranged on the outer side of the threaded column 102 through a threaded connection, and the bottom of the nut 104 is fitted with the top of the motor support 103; a motor front cover 105 is fixedly arranged on the outer side of one end of the motor housing 105 6, and a heat-conducting cover 109 is fixedly arranged on the outside of the other end of the motor housing 105; a motor rear cover 1012 is fixedly arranged on the outside of the heat-conducting cover 109, and a dust-proof net 1013 is fixedly arranged inside the motor rear cover 1012; its specific function is: the dust-proof net 1013 can prevent dust from being adsorbed on the surface of the heat-conducting cover 109, which is conducive to preventing the heat-conducting cover 109 from reducing the heat conduction efficiency due to dust coverage; a heat sink 107 and a hanging ring 108 are fixedly arranged on the outside of the motor housing 105, and a rotating shaft 1010 is rotatably arranged between the motor front cover 106 and the inside of the motor rear cover 1012; a junction box structure 4 is fixedly arranged on the outside of the motor housing 105, and the inside of the motor housing 105 The stator structure 2 is fixedly arranged on the outside of the rotating shaft 1010, and the rotor structure 3 is fixedly arranged on the outside of the rotating shaft 1010; the dustproof mechanism 5 is fixedly arranged on the outside of the motor rear cover 1012; the terminal box structure 4 includes: a terminal box body 401, a box cover 402, a terminal post 403, a fixing plate 404, a wire crimping cap 405 and a wire entry hole 406; the terminal box body 401 is fixedly arranged on the outside of the motor housing 105; the box cover 402 is fixedly arranged on the outside of the terminal box body 401; the terminal post 403 is fixedly arranged inside the terminal box body 401, and the terminal post 403 is set to be electrically connected with the coil 203; the fixing plate 404 is fixedly arranged on the outside of the terminal post 403; the wire crimping cap 405 The terminal 403 is provided at the end of the terminal 403 through a threaded connection, and the outer side of the wire cap 405 is fitted with the outer side of the fixing plate 404; the wire entry hole 406 is provided inside the bottom side of the terminal box body 401; the outer side of the rotating shaft 1010 is fixedly provided with a heat dissipation fan blade 1011, and the heat dissipation fan blade 1011 is located between the heat conductive cover 109 and the motor rear cover 1012; its specific function is: the heat inside the motor housing 105 can be conducted out by providing the heat conductive cover 109, and the heat dissipation fan blade 1011 can effectively dissipate the heat of the heat conductive cover 109; thus, the heat dissipation effect can be effectively enhanced by the simultaneous heat dissipation of the heat sink 107, the heat conductive cover 109 and the heat dissipation fan blade 1011.
[0034] Embodiment 2:
[0035] As attached Figure 4 With attached Figure 5 As shown:
[0036] On the basis of the first embodiment, the stator structure 2 includes: a stator core 201, a stator protruding tooth pole 202 and a coil 203; the stator core 201 is fixedly arranged inside the motor housing 105; the stator protruding tooth pole 202 is arranged on the inner side of the stator core 201 through an integrated stamping process, and the stator protruding tooth pole 202 is arranged in a ring array; the coil 203 is fixedly arranged on the outer side of the stator protruding tooth pole 202; the rotor structure 3 includes: a rotor core 301 and a rotor protruding tooth pole 302; the rotor core 301 is fixedly arranged on the outer side of the rotating shaft 1010; the rotor protruding tooth pole 302 is arranged on the rotor core through an integrated stamping process. The stator core 201 and the rotor core 301 are arranged in an annular array; the stator core 201 and the rotor core 301 are both made of laminated silicon steel sheets; its specific function is: by arranging the stator protruding tooth poles 202 on the inner side of the stator core 201 and the rotor protruding tooth poles 302 on the outer side of the rotor core 301; a double salient pole structure is formed inside the motor, so that when the coil 203 is energized to generate magnetic force by the stator protruding tooth poles 202, the stator protruding tooth poles 202 will attract the rotor protruding tooth poles 302 to make them rotate; it can avoid the rotor core 301 from adopting a multi-layer magnetic barrier structure, which is beneficial to simplify the structure of the rotor core 301.
[0037] Embodiment three:
[0038] As attached Figure 3 With attached Figure 6 As shown:
[0039] On the basis of Example 1 and Example 2, the dustproof mechanism 5 includes: a fixed frame 501, a dustproof shaft 502, a spiral fan blade 503 and a dustproof brush 504; the fixed frame 501 is fixedly arranged on the outside of the motor back cover 1012; the dustproof shaft 502 is rotatably arranged inside the fixed frame 501; the spiral fan blade 503 is fixedly arranged on the outer end of the dustproof shaft 502; the dustproof brush 504 is fixedly arranged on the inner end of the dustproof shaft 502, and the outer side of the dustproof brush 504 is in contact with the outer side of the dustproof net 1013; its specific function is: the spiral fan blade 503, the dustproof shaft 502 and the dustproof brush 504 can be used to remove dust on the surface of the dustproof net 1013, which is beneficial to ensure the ventilation volume between the thermal conductive cover 109 and the motor back cover 1012.
[0040] The specific usage and function of this embodiment are as follows:
[0041] In the utility model, when in use, the base 1 is installed at a designated position, and then the motor is lifted by the lifting ring 108, and the motor support 103 is placed on the outside of the threaded column 102, so that the bottom of the motor support 103 fits with the top of the buffer pad 101, and the motor support 103 is fixed to the top of the buffer pad 101 by using the nut 104 and the threaded column 102; the power supply wire is extended into the terminal box body 401 through the wire entry hole 406, and then the power supply wire is wound around the outside of the terminal 403, and then the wire crimping cap 405 is screwed on the end of the terminal 403 through the threaded structure, so that the wire crimping cap 405 and the fixing plate 404 fix the power supply wire to the outside of the terminal 403, so that the coil 203 is energized, and the stator protrudes when the coil 203 is energized The tooth pole 202 generates magnetic force, and the stator raised tooth pole 202 attracts the rotor raised tooth pole 302, so that the rotor raised tooth pole 302 approaches the stator raised tooth pole 202, thereby causing the rotor raised tooth pole 302 and the rotor core 301 and the rotating shaft 1010 to rotate; the heat dissipation inside the motor housing 105 is carried out through the heat sink 107; at the same time, the rotation of the rotating shaft 1010 drives the heat dissipation fan blades 1011 to rotate, and the heat dissipation fan blades 1011 blow the heat derived from the heat conductive cover 109 out of the dustproof net 1013, so that the inside of the motor housing 105 is effectively dissipated; at the same time, the spiral fan blades 503 drive the dustproof shaft 502 and the dustproof brush 504 to rotate through wind force, so that the dustproof brush 504 cleans the dust on the surface of the dustproof net 1013.
Claims
1. A switched reluctance motor with a simple structure, characterized in that: include: A base (1); a buffer pad (101) is fixedly arranged on the top of the base (1), and four groups of threaded columns (102) are fixedly arranged on the top of the base (1), and the four groups of threaded columns (102) completely penetrate the buffer pad (101); a motor support (103) is slidably arranged between the outer sides of the two groups of threaded columns (102), and the number of the motor supports (103) is set to two groups, and a motor housing (105) is fixedly arranged between the two groups of motor supports (103); a nut (104) is arranged on the outer side of the threaded column (102) through a threaded connection, and the bottom of the nut (104) is connected to the motor The top of the support (103) is fitted together; a motor front cover (106) is fixedly provided on the outside of one end of the motor housing (105), and a heat conductive cover (109) is fixedly provided on the outside of the other end of the motor housing (105); a motor rear cover (1012) is fixedly provided on the outside of the heat conductive cover (109), and a dustproof net (1013) is fixedly provided inside the motor rear cover (1012); a heat sink (107) and a hanging ring (108) are fixedly provided on the outside of the motor housing (105), and a rotating shaft (1010) is rotatably provided between the inside of the motor front cover (106) and the motor rear cover (1012); A junction box structure (4) is fixedly arranged on the outside of the motor housing (105), a stator structure (2) is fixedly arranged inside the motor housing (105), and a rotor structure (3) is fixedly arranged on the outside of the rotating shaft (1010); and a dustproof mechanism (5) is fixedly arranged on the outside of the motor rear cover (1012).
2. A switched reluctance motor with a simple structure according to claim 1, characterized in that: A heat dissipation fan blade (1011) is fixedly arranged on the outer side of the rotating shaft (1010), and the heat dissipation fan blade (1011) is located between the heat conductive cover (109) and the motor rear cover (1012).
3. A switched reluctance motor with a simple structure according to claim 1, characterized in that: The stator structure (2) comprises: a stator core (201), stator protruding teeth (202) and a coil (203); the stator core (201) is fixedly arranged inside a motor housing (105); the stator protruding teeth (202) are arranged inside the stator core (201) through an integrated stamping process, and the stator protruding teeth (202) are arranged in a ring array; and the coil (203) is fixedly arranged outside the stator protruding teeth (202).
4. A switched reluctance motor with a simple structure according to claim 3, characterized in that: The rotor structure (3) comprises: a rotor core (301) and rotor protruding tooth poles (302); the rotor core (301) is fixedly arranged on the outside of the rotating shaft (1010); the rotor protruding tooth poles (302) are arranged on the outside of the rotor core (301) by an integrated stamping process, and the rotor protruding tooth poles (302) are arranged in a ring array.
5. A switched reluctance motor with a simple structure according to claim 4, characterized in that: The stator iron core (201) and the rotor iron core (301) are both formed by laminating silicon steel sheets.
6. A switched reluctance motor with a simple structure according to claim 3, characterized in that: The junction box structure (4) comprises: a junction box body (401), a box cover (402), a terminal (403), a fixing plate (404), a wire cap (405) and a wire entry hole (406); the junction box body (401) is fixedly arranged on the outside of the motor housing (105); the box cover (402) is fixedly arranged on the outside of the junction box body (401); the terminal (403) is fixedly arranged inside the junction box body (401), and the terminal (403) and the coil (203) are electrically connected; the fixing plate (404) is fixedly arranged on the outside of the terminal (403); the wire cap (405) is arranged on the end of the terminal (403) by threaded connection, and the outside of the wire cap (405) is in contact with the outside of the fixing plate (404); and the wire entry hole (406) is opened inside the bottom side of the junction box body (401).
7. A switched reluctance motor with a simple structure according to claim 1, characterized in that: The dustproof mechanism (5) comprises: a fixing frame (501), a dustproof shaft (502), a spiral blade (503) and a dustproof brush (504); the fixing frame (501) is fixedly arranged on the outside of the motor rear cover (1012); the dustproof shaft (502) is rotatably arranged inside the fixing frame (501); the spiral blade (503) is fixedly arranged on the outer end of the dustproof shaft (502); the dustproof brush (504) is fixedly arranged on the inner end of the dustproof shaft (502), and the outer side of the dustproof brush (504) is in contact with the outer side of the dustproof net (1013).