Motor insulation support, motor manufacturing process and compressor

Abstract

The invention provides a motor insulation support, a motor manufacturing process and a compressor. The motor insulation support comprises an annular support body and at least one terminal block. One end face of the support body is provided with an annular wall, the annular wall is provided with at least one through hole, and the terminal block is detachably connected with the annular wall at the position of the through hole. The terminal blocks of the motor insulation support are detachable, when the motor insulation support is applied to a motor and a stator iron core of the motor is assembled, after enameled wires are wound on the winding teeth to form coils, the terminal blocks are installed on the support body, and outgoing lines of the coils are fixed on the terminal blocks. The detachable terminal block realizes inward movement of the terminal block to avoid contact with the shell while winding of a motor coil is not affected, the motor is particularly suitable for a stator iron core with a yoke portion smaller in size, and the motor assembling efficiency and the compressor operation stability are greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of compressors, and in particular to a motor insulation bracket, a motor manufacturing process and a compressor. Background Art

[0002] The lead wires of existing variable frequency motors mostly adopt enameled wire crimping technology. The three-phase enameled wire outlet is fixed by the terminal block structure on the insulating bracket, and then crimped by the crimping terminal to form a three-phase outlet. Specifically, the assembly process is to fix the bracket on the stator core, wind the motor to form a coil, and the outlet position of the coil is on the terminal block on the bracket. The coil is formed into a passage by crimping the terminal. One of the two terminal blocks can be used to crimp the three-phase enameled wire as a center point function, and the other is used as the outlet of the three-phase enameled wire. Since the outer circle of the stator core is in direct contact with the shell during the assembly process, the terminal block on the bracket is located inside the outer circle of the stator core to avoid contact with the shell. However, the structure of the terminal block on the bracket is designed according to the size of the crimping terminal, which makes the structure of the terminal block difficult to change. When the size of the stator core yoke becomes smaller, the terminal block of the bracket will be located outside the outer circle of the stator core. This situation will cause the terminal block to contact with external components, affecting assembly or reliability.

[0003] The terminal block on the traditional insulating bracket is part of the finished bracket, which is produced by one-piece injection molding. If the terminal block needs to be moved inside the bracket, the outside of the terminal block is inside the outer circle of the stator core. However, because the terminal block needs to match the crimping terminal, it is basically a standard size. If the terminal block is moved inward and is on the stator teeth, it will affect the winding of the coil. Therefore, it is necessary to design a spliced ​​crimping terminal block. The terminal block and the bracket are made separately and form a match. After the winding of the stator core is completed, the terminal block is spliced ​​to the inner position of the bracket, so that the outside of the terminal block is inside the outer circle of the stator core, so as to achieve the purpose of crimping wiring of the small yoke stator core.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute the prior art known to those skilled in the art. Summary of the invention

[0005] In view of the problems in the prior art, the purpose of the present invention is to provide a motor insulation bracket, a motor manufacturing process and a compressor, which are particularly suitable for stator cores with reduced yoke size, greatly improving the efficiency of motor assembly and the stability of compressor operation.

[0006] A first aspect of the present invention provides a motor insulation support, comprising an annular support body and at least one terminal block, wherein the terminal block of the motor insulation support is detachable, and the detachable terminal block does not affect the winding of the coil when the terminal block is moved inward.

[0007] An annular wall is disposed on one end surface of the bracket body, and the annular wall is disposed with at least one through hole. The terminal block is detachably connected to the annular wall at the through hole.

[0008] According to the first aspect of the present invention, both ends of the terminal block are respectively provided with card slots, and the card slots are configured to match the annular walls on both sides of the through hole.

[0009] According to the first aspect of the present invention, the annular walls on both sides of the through hole are parallel to each other.

[0010] According to the first aspect of the present invention, a positioning hole is provided on at least one side of the bottom of the through hole;

[0011] A latch tongue is arranged on the inner side of the bottom of the latch slot.

[0012] According to the first aspect of the present invention, the motor insulation bracket further comprises a plurality of winding teeth on the inner circumference of the bracket body.

[0013] A second aspect of the present invention provides a motor, comprising a stator core and the motor insulation bracket.

[0014] According to a second aspect of the present invention, the terminal block is mounted on the bracket body, and the outer side of the terminal block does not exceed the outer circle of the stator core.

[0015] A third aspect of the present invention provides a motor manufacturing process for obtaining a motor, wherein the motor includes the motor insulation bracket, and the manufacturing process includes the following steps:

[0016] S10: stator core assembly motor insulation bracket body;

[0017] S20: The enameled wire is wound around the winding teeth to form a coil;

[0018] S30: Installing each terminal block on each through hole of the annular wall;

[0019] S40: Crimping the coil lead and the neutral point enameled wire lead to the terminal block.

[0020] A third aspect of the present invention provides a compressor, comprising a motor manufactured using the motor manufacturing process.

[0021] The terminal block of the motor insulation bracket of the present invention is detachable. When the motor insulation bracket is used in the motor, when assembling the stator core of the motor, after the enameled wire is wound on the winding teeth to form a coil, each terminal block can be installed on the bracket body, and then the output wire of the coil is fixed on the terminal block. The detachable terminal block can be moved inward to avoid contact with the shell without affecting the winding of the coil. It is particularly suitable for stator cores with a smaller yoke size, which greatly improves the efficiency of motor assembly and the stability of compressor operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without paying creative work. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same figure numbers in the figures represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0023] Figure 1 It is a schematic structural diagram of a bracket body according to a first embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of a terminal block according to a first embodiment of the present invention;

[0025] Figure 3 is a schematic structural diagram of a bracket body according to a second embodiment of the present invention;

[0026] Figure 4 is a schematic structural diagram of a terminal block according to a second embodiment of the present invention;

[0027] Figure 5 A schematic diagram of a partial structure of a motor insulation bracket according to a second embodiment of the present invention; and

[0028] Figure 6 FIG. 1 is a flow chart of a motor manufacturing process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0030] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of this specification. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples represented in this specification without contradiction.

[0031] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. Terms indicating relative spaces such as "front", "rear", "upper", and "lower" may be used to more easily explain the relationship of a device illustrated in the accompanying drawings relative to another device. Such terms refer not only to the meanings indicated in the accompanying drawings, but also to other meanings or operations of the device in use. For example, if the device in the accompanying drawings is turned over, a device that was described as being "under" other devices is described as being "over" other devices. Therefore, the exemplary term "under" includes both upper and lower sides. The device can be rotated 90° or other angles, and the terms representing relative spaces are interpreted accordingly.

[0032] Although the terms first, second, etc. are used to represent various elements in this article in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, the exception to this definition will occur.

[0033] The present invention provides a motor insulation bracket and a motor manufacturing process compressor, wherein the motor insulation bracket includes an annular bracket body and at least one terminal block; an annular wall is provided on one end face of the bracket body, and the annular wall is provided with at least one through hole, and the terminal block is detachably connected to the annular wall at the through hole. The terminal block of the motor insulation bracket of the present invention is detachable. When the motor insulation bracket is used in a motor, when assembling the stator core of the motor, the enameled wire can be wound around the winding teeth to form a coil, and then each terminal block can be installed on the bracket body, and then the outlet wire of the coil can be fixed on the terminal block. The detachable terminal block can realize the inward movement of the terminal block to avoid contact with the shell without affecting the winding of the coil. It is particularly suitable for stator cores with a smaller yoke size, which greatly improves the efficiency of motor assembly and the stability of compressor operation.

[0034] The structure of the motor insulation bracket of the present invention and the motor manufacturing process including the insulation bracket are further explained below in conjunction with the accompanying drawings and specific embodiments. It can be understood that the various specific embodiments are not intended to limit the protection scope of the present invention.

[0035] The motor insulation support comprises an annular support body and at least one terminal block. The motor insulation support comprising two terminal blocks is taken as an example below. Figure 1This is a schematic diagram of the structure of the bracket body of the first embodiment of the present invention, wherein an annular wall 12 is provided on one end face of the bracket body 11, and the annular wall 12 is provided with a through hole 13a, and the terminal block 2a is detachably connected to the annular wall 12 at the through hole 13a. Compared with the existing one-piece motor insulation bracket, in which the terminal block is a part of the one-piece molding, the present invention manufactures the terminal block and the bracket body separately. Since the terminal block 2a is spliced ​​at the through hole 13a, the number of through holes 13a is equivalent to the number of required terminal blocks. In the first embodiment, the through hole 13a is a regular quadrilateral, that is, the bottom angle of the through hole 13a is 90°. Figure 2 This is a schematic diagram of the structure of the terminal block of the first embodiment. The body 21 of the terminal block 2a is in an arc shape that matches the annular bracket body. The body 21 of the terminal block 2a has a plurality of tooth structures 211, and the outlet terminals of the plurality of coils can be respectively arranged between adjacent tooth structures 211. Since the bottom angle of the through hole 13a is 90°, the two ends of the terminal block 2a are also perpendicular to the bottom edge, and the two ends of the terminal block 2a are respectively provided with a card slot 22a, and the card slot 22a is configured to match the annular wall 12 on both sides of the through hole 13a, that is, the width of the card slot 22a is equivalent to the wall thickness of the annular wall 12. Preferably, the two are interference fit to enhance the bonding force between the two, so as to ensure the stability of the terminal block after being installed with the bracket body.

[0036] In some other embodiments, the annular walls 12 on both sides of the through hole may be parallel, and the through hole is a parallelogram with a bottom angle not equal to 90°. Accordingly, the two ends of the terminal block are not perpendicular to the bottom edge. In these embodiments, when the terminal block is spliced ​​to the bracket body, the inclined side edges at both ends can prevent the terminal block from falling off the bracket body along the axis of the annular bracket body.

[0037] Figure 3 and Figure 4 Schematic diagram of the structure of the bracket body and the terminal block of the second embodiment of the present invention. Different from the first embodiment, at least one side of the bottom of the through hole 13b is provided with a positioning hole C, that is, the through hole 13b is in an inverted T shape, and the inner side of the bottom of the card slot 22b of the terminal block 2b is provided with a card tongue 221. Figure 5 It is a partial structural diagram of the motor insulation bracket of the second embodiment. It can be seen that when the terminal block 2b is installed at the through hole 13b, the tongue 221 is locked with the positioning hole C, which improves the stability of the terminal block after installation.

[0038] The present invention also provides a motor, comprising a stator core and the motor insulation bracket, wherein when the terminal block is mounted on the bracket body, the outer side of the terminal block does not exceed the outer circle of the stator core. Due to the special structure of the motor insulation bracket of the present invention, the present invention also provides a motor manufacturing process for obtaining the motor. Figure 6The present invention is a flow chart of a motor manufacturing process according to an embodiment. Specifically, the manufacturing process includes the following steps:

[0039] S10: The stator core is assembled with a support body of the motor insulation support, wherein the motor insulation support further comprises a plurality of winding teeth 9 on the inner periphery of the support body.

[0040] S20: The enameled wire is wound around the winding teeth to form a coil;

[0041] S30: Installing each terminal block on each through hole of the annular wall;

[0042] S40: Crimping the coil lead and the neutral point enameled wire lead to the terminal block.

[0043] Compared with the traditional stator core assembly, an integrated insulating bracket with a terminal block is provided, and then the enameled wire coil is wound, and then the outlet end of the coil and the enameled wire end at the neutral point are crimped to the terminal block. The motor insulating bracket of the present invention is suitable for a motor stator core with a reduced yoke, so that the terminal block can be arranged inside the circumference of the stator core without affecting the winding of the stator core coil, avoiding the contact between the terminal block and the compressor housing when it is arranged outside the circumference of the stator core, thereby reducing the problem of short circuit of the coil end on the terminal block, reducing the difficulty of motor assembly, and improving the efficiency of motor assembly.

[0044] The present invention also provides a compressor, including a motor manufactured using the motor manufacturing process, wherein the terminal block of the motor is arranged inside the circumference of the stator core, avoiding contact between the terminal block and the compressor housing, thereby improving the stability of the entire compressor.

[0045] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A motor insulation bracket, It is characterized in that It includes an annular support body and at least one terminal block; An annular wall is disposed on one end surface of the bracket body, and the annular wall is disposed with at least one through hole. The terminal block is detachably connected to the annular wall at the through hole.

2. The motor insulation bracket according to claim 1, It is characterized in that Both ends of the terminal block are respectively provided with card slots, and the card slots are configured to match the annular walls on both sides of the through hole.

3. The motor insulation bracket according to claim 2, It is characterized in that The annular walls on both sides of the through hole are parallel to each other.

4. The motor insulation bracket according to claim 2, It is characterized in that A positioning hole is provided on at least one side of the bottom of the through hole; A latch tongue is arranged on the inner side of the bottom of the latch slot.

5. The motor insulation bracket according to claim 1, It is characterized in that The motor insulating bracket also includes a plurality of winding teeth on the inner periphery of the bracket body.

6. A motor, It is characterized in that The invention comprises a stator core and the motor insulation bracket according to any one of claims 1 to 5.

7. The electric machine according to claim 6, It is characterized in that The terminal block is mounted on the bracket body, and the outer side of the terminal block does not exceed the outer circle of the stator core.

8. A motor manufacturing process, It is characterized in that For obtaining the motor according to claim 6, the manufacturing process comprises the following steps: S10: stator core assembly motor insulation bracket body; S20: The enameled wire is wound around the winding teeth to form a coil; S30: Installing each terminal block on each through hole of the annular wall; S40: Crimping the coil lead and the neutral point enameled wire lead to the terminal block.

9. A compressor, It is characterized in that It includes a motor manufactured by the motor manufacturing process described in claim 8.

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