Stator

Abstract

The utility model relates to a stator, and belongs to the technical field of motors. A plurality of winding groups of the stator are sequentially connected end to end from the first winding group to the last winding group, and winding assemblies for three-phase winding are arranged on the winding groups; the last winding group is also provided with a first connecting block and a second connecting block, the tail ends of the first phase and the second phase in the three phases are connected to the first connecting block, the tail section of the third phase in the three phases is connected to the second connecting block, one end of the neutral point connecting assembly is connected with the first connecting block, and the other end of the neutral point connecting assembly is connected with the second connecting block. The other end of the neutral point connecting assembly is connected with the second connecting block, and the neutral point connecting assembly can conduct electricity; the first connecting piece and the second connecting piece are connected through the neutral point connecting assembly, so that the tail ends of the three-phase coils are connected to form a neutral point, common point enameled wires are separately welded, paint film removal is facilitated, the tinning difficulty of the enameled wires is reduced, the welding qualification rate of an automatic production line is improved, and the product quality risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field, concretely relates to a stator. BACKGROUND

[0002] Three phase motor coil adopting star connection needs to connect one end of three coils together to form a common point. However, directly welding one end of three coils together is easy to cause common point welding to be bad due to coil peeling incomplete and other problems. SUMMARY

[0003] The utility model discloses at least solve one of the technical problems in the prior art. To this end, the utility model provides a stator.

[0004] The utility model discloses the purpose that can be realized through the following technical scheme:

[0005] A stator, comprising a winding group;

[0006] A plurality of winding groups are sequentially connected from the first to the last;The winding group is provided with a winding assembly for three-phase winding;

[0007] The first connecting block and the second connecting block are further arranged on the last winding group, and the tail end of the first phase and the second phase in the three phases is connected to the first connecting block, and the tail end of the third phase in the three phases is connected to the second connecting block;

[0008] The neutral point connecting assembly is connected to the first connecting block at one end, and is connected to the second connecting block at the other end, and the neutral point connecting assembly can conduct electricity;

[0009] Among them, the first phase, the second phase and the third phase are connected to any one phase of three-phase power supply respectively and jointly constitute three-phase.

[0010] According to some embodiments of the utility model, the number of winding assemblies in the winding group is three, which are sequentially the first winding assembly, the second winding assembly and the third winding assembly;

[0011] The winding assembly comprises a connecting seat and a winding coil, and the winding coil is fixedly connected to the connecting seat and used for three-phase winding;

[0012] The connecting seat is used for connecting adjacent winding assemblies in the winding group and connecting adjacent winding groups;

[0013] The first winding group is further provided with a third connecting block, a fourth connecting block and a fifth connecting block for connecting the head end of the three phases.

[0014] According to some embodiments of the utility model, one end of the connecting seat of the second winding assembly is connected with one end of the connecting seat of the first winding assembly, the other end of the connecting seat of the second winding assembly is connected with one end of the connecting seat of the third winding assembly, and the other end of the connecting seat of the first winding assembly is connected with the other end of the connecting seat of the third winding assembly.

[0015] According to some embodiments of the utility model, the number of the winding groups is four, which are the first winding group, the second winding group, the third winding group and the fourth winding group; the first winding group is connected with the fourth winding group in sequence.

[0016] According to some embodiments of the utility model, the third connecting block is arranged on the first winding assembly of the first winding group, the fourth connecting block is arranged on the second winding assembly of the first winding group, and the fifth connecting block is arranged on the third winding assembly of the first winding group.

[0017] The head end of the W phase is connected with the third connecting block, the tail end of the W phase is connected with the first connecting block, and the W phase is sequentially wound around the winding coil of the first winding assembly of each winding group from the first winding group to the last winding group;

[0018] The head end of the V phase is connected with the fourth connecting block, the tail end of the V phase is connected with the first connecting block, and the V phase is sequentially wound around the winding coil of the second winding assembly of each winding group from the first winding group to the last winding group;

[0019] The head end of the U phase is connected with the fifth connecting block, the tail end of the U phase is connected with the second connecting block, and the U phase is sequentially wound around the winding coil of the third winding assembly of each winding group from the first winding group to the last winding group.

[0020] According to some embodiments of the utility model, the winding assembly further comprises a limiting block, and the limiting block is arranged on the top of the winding coil.

[0021] According to some embodiments of the utility model, when the plurality of winding groups are connected in sequence, the adjacent limiting blocks abut against each other.

[0022] According to some embodiments of the utility model, the neutral point connecting assembly is a PCB.

[0023] The utility model discloses the beneficial effects are: be provided with first connecting piece and second connecting piece for connecting the tail end of three phase coil, make the tail end of three phase coil connect and form the neutral point by the neutral point connecting assembly and connect first connecting piece with second connecting piece, divide and weld the common point enameled wire, be favorable to the removal of the paint film, reduce the tin difficulty on enameled wire, improve the welding qualified rate of automatic production line, reduce product quality risk. Attached Figure Description

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure provided in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the first winding group provided in one embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the fourth winding group provided in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of a three-phase winding provided in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of a circular stator provided in one embodiment of the present invention.

[0030] In the diagram: 110, first winding group; 120, second winding group; 130, third winding group; 140, fourth winding group; 201, winding coil; 202, connecting seat; 203, limiting block; 210, first winding assembly; 220, second winding assembly; 230, third winding assembly; 301, first connecting block; 302, second connecting block; 303, third connecting block; 304, fourth connecting block; 305, fifth connecting block; 400, neutral point connecting assembly. Detailed Implementation

[0031] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0032] Please refer to Figures 1-5 The present invention provides a stator in one embodiment, comprising a winding assembly;

[0033] Multiple winding groups are connected end to end from the first to the last; the winding groups are equipped with winding components for three-phase winding.

[0034] The last winding group is also provided with a first connecting block 301 and a second connecting block 302. The tail ends of the first phase and the second phase of the three phases are connected to the first connecting block 301, and the tail end of the third phase of the three phases is connected to the second connecting block 302.

[0035] The neutral point connecting assembly 400 is connected with the first connecting block 301 at one end and connected with the second connecting block 302 at the other end, and the neutral point connecting assembly 400 can conduct electricity.

[0036] The first phase, the second phase and the third phase are connected with any one of the three-phase power supply respectively and jointly form three phases.

[0037] In the embodiment, the first connecting block 301, the second connecting block 302 and the neutral point connecting assembly 400 are arranged, when connecting the neutral point of the stator, the tail ends of any two phases of the three phases are first connected to the first connecting block 301 by welding or the like, the tail end of the third phase is then connected to the second connecting block 302 by welding or the like, and finally the first connecting block 301 and the second connecting block 302 are connected by the neutral point connecting assembly 400, thereby realizing the connection of the tail ends of the three phases. The three phases are welded separately, which is beneficial to the removal of the paint film, reduces the tin difficulty of the enameled wire, improves the welding qualification rate of the automatic production line, and reduces the product quality risk.

[0038] In a further embodiment of the utility model, the number of the winding assembly in the winding group is three, which are the first winding assembly 210, the second winding assembly 220 and the third winding assembly 230 in sequence.

[0039] The winding assembly comprises a connecting seat 202 and a winding coil 201, the winding coil 201 is fixedly connected to the connecting seat 202 and used for three-phase winding.

[0040] The connecting seat 202 is used for connecting adjacent winding assemblies in the winding group and connecting adjacent winding groups.

[0041] The first winding group is further provided with a third connecting block 303, a fourth connecting block 304 and a fifth connecting block 305 for connecting the head ends of the three phases.

[0042] In the embodiment, the winding assembly comprises a connecting seat 202 and a winding coil 201, the winding coil 201 is used for winding the wire on the outer surface thereof, and the connecting seat 202 is used for fixing the winding coil 201 and connecting adjacent winding assemblies and adjacent winding groups. The third connecting block 303, the fourth connecting block 304 and the fifth connecting block 305 are further arranged for connecting the head ends of the three phases, the head ends of the three phases extend to the outside through the third connecting block 303, the fourth connecting block 304 and the fifth connecting block 305, and the head ends of the three phases are convenient for being connected with external equipment.

[0043] In the embodiment, the winding groups are sequentially connected in a head-to-tail manner by the plurality of winding assemblies, the final shape of the winding groups can be determined by adjusting the angle of the connection between the winding assemblies, and the application scenarios of the stator are improved.

[0044] In a further embodiment of the utility model, one end of the connecting seat 202 of the second winding assembly 220 is connected with one end of the connecting seat 202 of the first winding assembly 210, the other end of the connecting seat 202 of the second winding assembly 220 is connected with one end of the connecting seat 202 of the third winding assembly 230, and the other end of the connecting seat 202 of the first winding assembly 210 is connected with the other end of the connecting seat 202 of the third winding assembly 230 for connecting the adjacent two winding groups.

[0045] In a further embodiment of the utility model, the number of winding groups is four, which are the first winding group 110, the second winding group 120, the third winding group 130 and the fourth winding group 140; the first winding group 110 and the fourth winding group 140 are sequentially connected in a head-to-tail manner.

[0046] Please refer to Figure 4 In a further embodiment of the utility model, the third connecting block 303 is arranged on the first winding assembly 210 of the first winding group 110, the fourth connecting block 304 is arranged on the second winding assembly 220 of the first winding group 110, and the fifth connecting block 305 is arranged on the third winding assembly 230 of the first winding group 110.

[0047] The head end of the W phase is connected to the third connecting block 303, the tail end of the W phase is connected to the first connecting block 301, and the W phase is sequentially wound around the winding coil 201 of the first winding assembly 210 of each winding group from the first winding group to the last winding group.

[0048] The head end of the V phase is connected to the fourth connecting block 304, the tail end of the V phase is connected to the first connecting block 301, and the V phase is sequentially wound around the winding coil 201 of the second winding assembly 220 of each winding group from the first winding group to the last winding group.

[0049] The head end of the U phase is connected to the fifth connecting block 305, the tail end of the U phase is connected to the second connecting block 302, and the U phase is sequentially wound around the winding coil 201 of the third winding assembly 230 of each winding group from the first winding group to the last winding group.

[0050] In a further embodiment of the utility model, the winding assembly further comprises a limiting block 203 arranged on the top of the winding coil 201.

[0051] In the embodiment, the winding assembly is provided with the limiting block 203, so that displacement of the electric wire around the winding coil 201 can be prevented, and problems such as loosening and falling off can be avoided.

[0052] Please refer to Figure 5 In further embodiments of the utility model, when the plurality of winding groups are connected in a ring shape, the adjacent limiting blocks 203 abut against each other.

[0053] In the embodiment, when the plurality of winding groups are connected in a ring shape, the adjacent limiting blocks 203 abut against each other, so that the strength of the whole stator is improved.

[0054] In further embodiments of the utility model, the neutral point connecting assembly 400 is a PCB board.

[0055] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with a preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the utility model technical scheme, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the utility model technical scheme.

Claims

1. A stator characterized by, It comprises a winding group; A plurality of winding groups are connected in sequence from the first to the last; A first connecting block (301) and a second connecting block (302) are further arranged on the last winding group, the tail ends of the first phase and the second phase in the three phases are connected to the first connecting block (301), and the tail end of the third phase in the three phases is connected to the second connecting block (302); A neutral point connecting assembly (400) is connected to the first connecting block (301) at one end and connected to the second connecting block (302) at the other end, and the neutral point connecting assembly (400) can conduct electricity; Wherein, the first phase, the second phase and the third phase are connected to any one of the three-phase power supply and together form three-phase.

2. A stator according to claim 1, characterised in that The number of winding assembly in the winding group is three, which are first winding assembly (210), second winding assembly (220) and third winding assembly (230) in sequence; The winding assembly comprises a connecting seat (202) and a winding coil (201), and the winding coil (201) is fixedly connected to the connecting seat (202) and used for three-phase winding; The connecting seat (202) is used for connecting adjacent winding assemblies in the winding group and connecting adjacent winding groups. The first winding group is further provided with a third connecting block (303), a fourth connecting block (304) and a fifth connecting block (305) for connecting the head end of the three-phase.

3. A stator according to claim 2, wherein One end of the connecting seat (202) of the second winding assembly (220) is connected to one end of the connecting seat (202) of the first winding assembly (210), the other end of the connecting seat (202) of the second winding assembly (220) is connected to one end of the connecting seat (202) of the third winding assembly (230), and the other end of the connecting seat (202) of the first winding assembly (210) is connected to the other end of the connecting seat (202) of the third winding assembly (230) for connecting adjacent two winding groups.

4. A stator according to claim 3, wherein The number of winding groups is four, which are first winding group (110), second winding group (120), third winding group (130) and fourth winding group (140) in sequence.

5. A stator according to claim 4, wherein The third connecting block (303) is arranged on the first winding assembly (210) of the first winding group (110), the fourth connecting block (304) is arranged on the second winding assembly (220) of the first winding group (110), and the fifth connecting block (305) is arranged on the third winding assembly (230) of the first winding group (110); The head end of the W phase is connected to the third connecting block (303), the tail end of the W phase is connected to the first connecting block (301), and the W phase is sequentially wound around the winding coil (201) of the first winding assembly (210) of each winding group from the first winding group to the last winding group. The head end of the V phase is connected to the fourth connecting block (304), the tail end of the V phase is connected to the first connecting block (301), and the V phase is sequentially wound around the winding coil (201) of the second winding assembly (220) of each winding group from the first winding group to the last winding group; The head end of the U phase is connected to the fifth connecting block (305), the tail end of the U phase is connected to the second connecting block (302), and the U phase is sequentially wound around the winding coil (201) of the third winding assembly (230) of each winding group from the first winding group to the last winding group.

6. A stator according to claim 2, wherein The winding assembly further comprises a limiting block (203) arranged at the top of the winding coil (201).

7. A stator according to claim 6, wherein When the plurality of winding groups are connected in a ring shape, the adjacent limiting blocks (203) abut each other.

8. A stator according to claim 1, wherein The neutral point connecting assembly (400) is a PCB board.

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