Stator structure of servo motor

Abstract

The utility model relates to the technical field of motor stators, in particular to a stator structure of a servo motor, which comprises an inner support ring and a plurality of stator assemblies, each stator assembly comprises a stator core, stator teeth, stator tooth feet, limiting blocks, a fixing unit and a reinforcing unit, and two ends of each stator tooth are fixedly connected with the stator core and the stator tooth feet respectively. The inner supporting ring is provided with a groove, the groove is matched with the stator tooth foot, the limiting block is fixedly connected with the stator core and located at one end of the stator core, the stator core is provided with a limiting groove, the limiting block is matched with the limiting groove, and during installation, the stator tooth foot is aligned with the groove of the inner supporting ring, the limiting block is aligned with the limiting groove of the stator core, and installation of the stator core is completed. Then the limiting block and the stator core are fixed through the fixing unit, the inner supporting ring and the stator tooth foot are fixed through the reinforcing unit, when the independent stator core is damaged, replacement is convenient, the whole stator does not need to be maintained, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stators, in particular to a stator structure of a servo motor. Background Art

[0002] In a servo motor, the stator is an important component, consisting of three parts: the stator core, the stator winding and the base. Since the stator yoke is locally thin, after the shrink fit with the compressor housing is completed, the stress on the yoke will be concentrated, and the local iron loss of the stator will increase, affecting the energy efficiency. At the same time, the yoke will be deformed due to the influence of the frame installation, which will also affect the assembly of the stator.

[0003] The prior art patent CN205377471U discloses a motor stator structure and a motor. The stator core is replaced with a flow hole and a positioning groove that cooperates with the frame. The positioning groove is arranged at the bottom of the flow hole. The stator core also has a stress adjustment structure. The stator core adjusts its own stress through the stress adjustment structure thereon, thereby avoiding the occurrence of stress base phenomenon, thereby avoiding the deformation of the stator core due to stress concentration and affecting assembly, reducing the deformation of the stator and the increase in iron loss caused by its stress.

[0004] However, in the above-mentioned prior art, the stator core is an integrated type, which is not convenient to be disassembled for internal maintenance. When damaged, the damaged part cannot be removed separately, which increases the use and maintenance costs. Utility Model Content

[0005] The utility model aims to provide a stator structure of a servo motor, which solves the problem in the prior art that the stator core is an integrated type, which is not convenient to disassemble for internal maintenance, and the damaged part cannot be removed separately when damaged, which increases the use and maintenance costs.

[0006] To achieve the above-mentioned purpose, the utility model provides a stator structure of a servo motor, comprising an inner support ring and a plurality of stator components;

[0007] The stator assembly includes a stator core, a stator tooth, a stator tooth foot, a limit block, a fixing unit and a reinforcement unit. The two ends of the stator tooth are fixedly connected to the stator core and the stator tooth foot respectively. The inner support ring has a groove, and the groove and the stator tooth foot are adapted to each other. The limit block is fixedly connected to the stator core and is located at one end of the stator core. The stator core has a limit groove, and the limit block and the limit groove are adapted to each other. The fixing unit is arranged on the limit block and the stator core, and the inner support ring and the stator tooth foot are connected through the reinforcement unit.

[0008] Among them, the fixing unit includes a plate body, two first bolts and two first washers. The plate body is fixedly connected to the limit block and is located at one end of the limit block. The stator core has two first threaded holes. The two first bolts pass through the plate body in sequence and are adapted to the corresponding first threaded holes. The two first washers are respectively sleeved on the outside of the corresponding first bolts.

[0009] Wherein, the reinforcement unit includes a second bolt and a second washer, the inner support ring has a second threaded hole, the stator tooth foot has a third threaded hole, the second bolt is adapted to the second threaded hole and the third threaded hole in sequence, and the second washer is sleeved on the outside of the second bolt.

[0010] Wherein, the stator structure of the servo motor further includes a plurality of supporting components, and the plurality of supporting components are respectively arranged on the corresponding stator components.

[0011] Wherein, the support assembly includes a cross fixing frame and a reinforcement strip, the stator core has a first slot body, the stator tooth has a second slot body, the reinforcement strip is fixedly connected to the stator core and is located inside the first slot body, and the cross fixing frame is fixedly connected to the stator tooth and is located inside the second slot body.

[0012] The utility model provides a stator structure of a servo motor. During installation, the stator tooth foot is aligned with the groove of the inner support ring, and the limit block is aligned with the limit groove of the stator core to complete the installation of the stator core. Then, the limit block is fixed to the stator core by the fixing unit, and the inner support ring is fixed to the stator tooth foot by the reinforcement unit. Through the above-mentioned structural setting, when a single stator core is damaged, it is easy to replace without the need to maintain the entire stator, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0015] Figure 2 It is an overall cross-sectional view of the first embodiment of the utility model.

[0016] Figure 3 The utility model Figure 2 AA line section view.

[0017] Figure 4 The utility model Figure 2 BB line cross-sectional view.

[0018] Figure 5 The utility model Figure 3 Enlarged view of the local structure at location C.

[0019] Figure 6 The utility model Figure 4 Enlarged view of the local structure at D.

[0020] Figure 7 It is an overall structural diagram of the second embodiment of the utility model.

[0021] Figure 8 It is an overall cross-sectional view of the second embodiment of the utility model.

[0022] 101-inner support ring, 102-stator core, 103-stator teeth, 104-stator tooth feet, 105-limiting blocks, 106-grooves, 107-plate bodies, 108-first bolts, 109-first washers, 110-second bolts, 111-second washers, 112-second threaded holes, 113-first threaded holes, 114-third threaded holes, 201-cross fixing frames, 202-reinforcement strips, 203-first slot bodies, 204-second slot bodies. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] First embodiment:

[0025] See also Figures 1 to 6 ,in Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 is a sectional view of the whole of the first embodiment of the utility model, Figure 3 The utility model Figure 2 AA line section view, Figure 4 The utility model Figure 2 BB line cross-sectional view, Figure 5 The utility model Figure 3 The enlarged view of the local structure at C. Figure 6 The utility model Figure 4 Enlarged view of the local structure at D.

[0026] The utility model provides a stator structure of a servo motor, comprising an inner support ring 101 and a plurality of stator components, wherein the stator components comprise a stator core 102, stator teeth 103, stator tooth feet 104, a limiting block 105, a fixing unit and a reinforcement unit, wherein the inner support ring 101 has a groove 106, the stator core 102 has a limiting groove, the fixing unit comprises a plate body 107, two first bolts 108 and two first washers 109, the stator core 102 has two first threaded holes 113, the reinforcement unit comprises a second bolt 110 and a second washer 111, the inner support ring 101 has a second threaded hole 112, and the stator tooth foot 104 has a third threaded hole 114.

[0027] According to this specific embodiment, during installation, the stator tooth foot 104 is aligned with the groove 106 of the inner support ring 101, and the limit block 105 is aligned with the limit groove of the stator core 102 to complete the installation of the stator core 102, and then the first bolt 108 is passed through the plate body 107 and screwed into the first threaded hole 113, thereby fixing the plate body 107 and the limit block 105 on the stator core 102, and the first washer 109 can reduce the loosening of the first bolt 108 and improve the service life, and the second bolt 110 is screwed into the second threaded hole 112 and the third threaded hole 114 in turn, thereby fixing the stator tooth foot 104 to the inner support ring 101, and at the same time, the second washer 111 can reduce the loosening of the second bolt 110 and improve the service life.

[0028] In which, the two ends of the stator tooth 103 are fixedly connected to the stator core 102 and the stator tooth foot 104 respectively, the inner support ring 101 has a groove 106, the groove 106 and the stator tooth foot 104 are adapted to each other, the limit block 105 is fixedly connected to the stator core 102 and is located at one end of the stator core 102, the stator core 102 has a limit groove, the limit block 105 and the limit groove are adapted to each other, the fixing unit is arranged on the limit block 105 and the stator core 102, and the inner support ring 101 and the stator tooth foot 104 are connected through the reinforcement unit. During installation, align the stator tooth foot 104 with the groove 106 of the inner support ring 101, align the limit block 105 with the limit groove of the stator core 102, and complete the installation of the stator core 102. Then, fix the limit block 105 to the stator core 102 through the fixing unit, and fix the inner support ring 101 to the stator tooth foot 104 through the reinforcement unit. When the individual stator core 102 is damaged, it is easy to replace without maintaining the entire stator, thereby reducing maintenance costs.

[0029] Secondly, the plate body 107 is fixedly connected to the stop block 105 and is located at one end of the stop block 105. The stator core 102 has two first threaded holes 113. The two first bolts 108 sequentially penetrate the plate body 107 and are adapted to the corresponding first threaded holes 113. The two first washers 109 are respectively sleeved on the outside of the corresponding first bolts 108. The first bolts 108 penetrate the plate body 107 and are screwed into the first threaded holes 113, thereby fixing the plate body 107 and the stop block 105 on the stator core 102. The first washers 109 can reduce the loosening of the first bolts 108 and improve the service life.

[0030] At the same time, the inner support ring 101 has a second threaded hole 112, the stator tooth foot 104 has a third threaded hole 114, the second bolt 110 is sequentially matched with the second threaded hole 112 and the third threaded hole 114, and the second washer 111 is sleeved on the outside of the second bolt 110. The second bolt 110 is screwed into the second threaded hole 112 and the third threaded hole 114 in turn, thereby fixing the stator tooth foot 104 and the inner support ring 101, and the second washer 111 can reduce the loosening of the second bolt 110 and improve the service life.

[0031] When the utility model is used for stator assembly, during installation, the stator tooth foot 104 is aligned with the groove 106 of the inner support ring 101, and the limit block 105 is aligned with the limit groove of the stator core 102 to complete the installation of the stator core 102, and then the first bolt 108 penetrates the plate body 107 and is screwed into the first threaded hole 113, thereby fixing the plate body 107 and the limit block 105 on the stator core 102, and the first washer 109 can reduce the loosening of the first bolt 108 and improve the service life, and the second bolt 110 is screwed into the second threaded hole 112 and the third threaded hole 114 in turn, thereby fixing the stator tooth foot 104 to the inner support ring 101, and at the same time, the second washer 111 can reduce the loosening of the second bolt 110 and improve the service life. Through the above-mentioned structural setting, when the individual stator core 102 is damaged, it is convenient to replace it without the need to maintain the entire stator, thereby reducing maintenance costs.

[0032] Second embodiment:

[0033] Based on the first embodiment, please refer to Figure 7 and Figure 8 ,in Figure 7 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 8It is an overall cross-sectional view of the second embodiment of the utility model.

[0034] The utility model provides a stator structure of a servo motor, which also includes a plurality of support components. The support components include a cross fixing frame 201 and a reinforcement bar 202 . The stator core 102 has a first slot body 203 , and the stator tooth 103 has a second slot body 204 .

[0035] According to this specific embodiment, the first slot body 203 and the second slot body 204 are opened on the stator core 102 and the stator teeth 103, which is beneficial to the heat dissipation of the stator. At the same time, the cross fixing frame 201 and the reinforcement bar 202 support the inside of the first slot body 203 and the second slot body 204, thereby reducing the material used in the stator, saving costs, facilitating the heat dissipation of the stator, and providing sufficient structural strength.

[0036] Wherein, a plurality of the support components are respectively arranged on the corresponding stator components. The support components can reduce the material used for the stator, save costs, facilitate heat dissipation of the stator, and provide sufficient structural strength.

[0037] Secondly, the stator core 102 has a first slot body 203, the stator tooth 103 has a second slot body 204, the reinforcement bar 202 is fixedly connected to the stator core 102 and is located inside the first slot body 203, and the cross fixing frame 201 is fixedly connected to the stator tooth 103 and is located inside the second slot body 204. The first slot body 203 and the second slot body 204 are opened on the stator core 102 and the stator tooth 103, which is beneficial to the heat dissipation of the stator, and the cross fixing frame 201 and the reinforcement bar 202 support the first slot body 203 and the second slot body 204.

[0038] When the utility model is used for stator assembly, the first slot body 203 and the second slot body 204 are opened on the stator core 102 and the stator teeth 103, which is beneficial to the heat dissipation of the stator. At the same time, the cross fixing frame 201 and the reinforcement bar 202 support the inside of the first slot body 203 and the second slot body 204, thereby reducing the material used in the stator, saving costs, facilitating the heat dissipation of the stator, and providing sufficient structural strength.

[0039] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A stator structure of a servo motor, comprising an inner support ring, characterized in that: Also included are a plurality of stator assemblies; The stator assembly includes a stator core, a stator tooth, a stator tooth foot, a limit block, a fixing unit and a reinforcement unit. The two ends of the stator tooth are fixedly connected to the stator core and the stator tooth foot respectively. The inner support ring has a groove, and the groove and the stator tooth foot are adapted to each other. The limit block is fixedly connected to the stator core and is located at one end of the stator core. The stator core has a limit groove, and the limit block and the limit groove are adapted to each other. The fixing unit is arranged on the limit block and the stator core, and the inner support ring and the stator tooth foot are connected through the reinforcement unit.

2. The stator structure of the servo motor according to claim 1, characterized in that: The fixing unit includes a plate body, two first bolts and two first washers. The plate body is fixedly connected to the limit block and is located at one end of the limit block. The stator core has two first threaded holes. The two first bolts pass through the plate body in sequence and are adapted to the corresponding first threaded holes. The two first washers are respectively sleeved on the outside of the corresponding first bolts.

3. The stator structure of the servo motor according to claim 2, characterized in that: The reinforcement unit includes a second bolt and a second washer, the inner support ring has a second threaded hole, the stator tooth foot has a third threaded hole, the second bolt is adapted to the second threaded hole and the third threaded hole in sequence, and the second washer is sleeved on the outside of the second bolt.

4. The stator structure of the servo motor according to claim 3, characterized in that: The stator structure of the servo motor further includes a plurality of supporting components, and the plurality of supporting components are respectively arranged on the corresponding stator components.

5. The stator structure of the servo motor according to claim 4, characterized in that: The support assembly includes a cross fixing frame and a reinforcement bar, the stator core has a first slot body, the stator tooth has a second slot body, the reinforcement bar is fixedly connected to the stator core and is located inside the first slot body, and the cross fixing frame is fixedly connected to the stator tooth and is located inside the second slot body.

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