Motor stator

Abstract

The utility model belongs to the technical field of motors, and particularly relates to a motor stator. The utility model provides a motor stator. The motor stator comprises a stator core; the terminal plastic shell is arranged on the outer wall of the stator core in a sliding manner; one end of the wire clamping buckle is arranged on the side wall of the terminal plastic shell, and the other end extends towards the outer wall of the stator core; wherein a cable passes through the wire clamping buckle to be fixed on the terminal plastic shell, and the wire clamping buckle is suitable for limiting the cable to move left and right; through the cooperation of the wire clamping buckle, the terminal plastic shell and the stator iron core, the effect of limiting, fixing and restraining the cable when the cable passes through the wire clamping buckle is achieved, and the situation that the cable bounces and is in a mess when the stator iron core is assembled, and consequently a stator lead is damaged is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a motor stator. Background Art

[0002] During the motor assembly process, terminal housings are used to connect the cables extending outward from the stator core to the power lines on the motor housing.

[0003] After the cable extending outward from the stator core is fixed on the terminal plastic shell, the cable will slide left and right on the outer wall of the stator core during the process of fixing the stator core to the motor housing. The sliding of the cable will cause the outer wall of the cable to rub against the sharp corners of the outer wall of the stator core, causing the insulation layer of the outer wall of the cable to be damaged, thereby affecting the service life of the cable.

[0004] How to prevent the cables extending outward from the stator core from shaking left and right during assembly is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Utility Model Content

[0006] The embodiments of the present disclosure at least provide a motor stator and a working method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides a motor stator, comprising:

[0008] stator core;

[0009] The terminal plastic shell is slidably arranged on the outer wall of the stator core;

[0010] A wire clip, one end of which is arranged on the side wall of the terminal plastic shell and the other end extends toward the outer wall of the stator core;

[0011] The cable is fixed on the terminal plastic shell through the wire clamp, and the wire clamp is suitable for limiting the left and right movement of the cable.

[0012] In an optional embodiment, the wire clip includes: a transverse plate and a longitudinal plate, one end of the transverse plate is arranged on the upper side wall of the terminal plastic shell, and the transverse plate and the axis of the stator core are parallel to each other;

[0013] The longitudinal plate extends along the radial direction of the stator core, and one end of the longitudinal plate is arranged on the side wall of the transverse plate, and the other end extends toward the outer wall of the stator core.

[0014] In an optional embodiment, the wire clip is "C"-shaped, and the inner wall of the wire clip cooperates with the inner wall of the terminal plastic shell and the outer wall of the stator core to form a protective station, and the cable is suitable for extending downward through the protective station.

[0015] In an optional embodiment, a side wall of the terminal housing close to the wire clip is provided with a plurality of connection holes, and the cables are suitable for being inserted into the connection holes;

[0016] One sealing head corresponds to one connecting hole, and the sealing head is suitable for covering the connecting hole to prevent external liquid from entering the terminal plastic shell.

[0017] In an optional embodiment, a positioning groove is provided on the outer wall of the stator core along the axial direction, and the width of the bottom wall of the positioning groove is greater than the width of the opening.

[0018] In an optional embodiment, a positioning block is provided on the inner wall of the terminal plastic shell, the cross section of the positioning block is trapezoidal, and the positioning block is suitable for sliding in the positioning groove.

[0019] In a second aspect, an embodiment of the present disclosure further provides a terminal molded case assembly, comprising:

[0020] The terminal plastic shell is slidably arranged on the outer wall of the stator core;

[0021] A wire clip, one end of which is arranged on the side wall of the terminal plastic shell and the other end extends toward the outer wall of the stator core;

[0022] The inner wall of the wire clip cooperates with the inner wall of the terminal plastic shell and the outer wall of the stator core to form a protective station, and the cable is suitable for extending downward through the protective station.

[0023] In an optional embodiment, the wire clip includes: a transverse plate and a longitudinal plate, one end of the transverse plate is arranged on the upper side wall of the terminal plastic shell, and the transverse plate and the axis of the stator core are parallel to each other;

[0024] The longitudinal plate extends along the radial direction of the stator core, and one end of the longitudinal plate is arranged on the side wall of the transverse plate, and the other end extends toward the outer wall of the stator core.

[0025] In an optional embodiment, a side wall of the terminal housing close to the wire clip is provided with a plurality of connection holes, and the cables are suitable for being inserted into the connection holes;

[0026] One sealing head corresponds to one connecting hole, and the sealing head is suitable for covering the connecting hole to prevent external liquid from entering the terminal plastic shell.

[0027] In an optional embodiment, a positioning groove is provided on the outer wall of the stator core along the axial direction, and the width of the bottom wall of the positioning groove is greater than the width of the opening;

[0028] A positioning block is provided on the inner wall of the terminal plastic shell. The cross section of the positioning block is trapezoidal and is suitable for sliding in the positioning groove.

[0029] The beneficial effect of the present invention is that the motor stator of the present invention achieves the effect of limiting the cable position through the cooperation of the wire clamp, the stator core, and the terminal plastic shell. During assembly, after the terminal plastic shell is fixed to the outer wall of the stator core, the cable is passed through the wire clamp and fixed to the terminal plastic shell. This prevents the cable from bouncing and becoming messy during assembly, which may cause damage to the stator lead wire, thereby improving assembly efficiency and extending the service life of the cable.

[0030] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A three-dimensional diagram of a motor stator provided in an embodiment of the present disclosure;

[0034] Figure 2 A three-dimensional diagram of a terminal plastic housing provided in an embodiment of the present disclosure;

[0035] Figure 3 A top view of the stator core and terminal plastic shell provided in an embodiment of the present disclosure;

[0036] Figure 4 A schematic diagram of the cable status of the cable clip limiting device provided in an embodiment of the present disclosure.

[0037] In the picture:

[0038] 1. Stator core; 10. Positioning groove; 2. Terminal plastic shell; 3. Wire clip; 31. Horizontal plate; 32. Longitudinal plate; 33. Head; 34. Positioning block. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0040] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0041] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0042] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0043] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0044] Research has found that the disadvantage of the existing technology is that after the cable extending outward from the stator core is fixed on the terminal plastic shell, the cable will slide left and right on the outer wall of the stator core during the process of fixing the stator core to the motor housing. The sliding of the cable will cause the outer wall of the cable to rub against the sharp corners of the outer wall of the stator core, causing the insulation layer of the outer wall of the cable to be damaged, affecting the service life of the cable.

[0045] How to prevent the cables extending outward from the stator core from shaking left and right during assembly is a technical problem that urgently needs to be solved in this field.

[0046] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0048] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0049] like Figures 1 to 4As shown, some embodiments provide a motor stator, comprising: a stator core 1; a positioning slot 10 axially defined on the outer wall of the stator core 1, wherein the bottom wall of the positioning slot 10 is wider than the width of the opening. The positioning slot 10 is a dovetail slot. A terminal housing 2 is slidably mounted on the outer wall of the stator core 1; a positioning block 34 is provided on the inner wall of the terminal housing 2. The positioning block 34 has a trapezoidal cross-section and is adapted to slide within the positioning slot 10. During assembly, the assembly tool pushes the terminal housing 2 so that the positioning block 34 slides to the appropriate position within the positioning slot 10. After the assembly tool is removed, the positioning block 34 does not slide freely within the positioning slot 10. A wire clip 3 has one end disposed on the side wall of the terminal housing 2 and the other end extending toward the outer wall of the stator core 1. The wire clip 3 is disposed on the upper frame of the terminal housing 2 near the stator core 1. Cables are secured to the terminal housing 2 through the wire clip 3, which is adapted to limit left and right cable movement. The cables described in this embodiment are stator three-phase leads.

[0050] The cable retaining mechanism 3, stator core 1, and terminal housing 2 work together to secure the cable. During assembly, after the terminal housing 2 is secured to the outer wall of the stator core 1, the cable is threaded through the cable retaining mechanism 3 and secured to the terminal housing 2. This prevents wear and tear on the cable's outer wall caused by swaying during assembly, improving assembly efficiency and extending the cable's service life.

[0051] Compared with the traditional terminal molded shell 2, this embodiment adds a wire clamp 3. In the process of fixing the cable extending outward from the stator core 1 in the terminal molded shell 2, the wire clamp 3 can prevent the cable from moving left and right at will, thereby avoiding the wear of the outer wall caused by the cable shaking left and right.

[0052] Reference Attachment Figure 2 The cable clip 3 includes a transverse plate 31 and a longitudinal plate 32. One end of the transverse plate 31 is disposed on the upper side wall of the terminal housing 2, and the transverse plate 31 is parallel to the axis of the stator core 1. The transverse plate 31 extends away from the terminal housing 2, and the end cap 33 is parallel to the transverse plate 31. The arrangement of the transverse plate 31 prevents the cable from moving left or right during assembly. The longitudinal plate 32 extends in the radial direction of the stator core 1, with one end disposed on the side wall of the transverse plate 31 and the other end extending toward the outer wall of the stator core 1. The other end of the longitudinal plate 32 is closely aligned with the outer wall of the stator core 1, that is, the gap between the end wall of the longitudinal plate 32 and the outer wall of the stator core 1 is small, preventing the cable from moving outward through the gap. The arrangement of the longitudinal plate 32 also prevents the cable from moving outward after passing over the transverse plate 31.

[0053] Preferably, the wire clip 3 can also be "C"-shaped, with the inner wall of the wire clip 3 cooperating with the inner wall of the terminal housing 2 and the outer wall of the stator core 1 to form a protective station, through which the cable is suitable for extending downward. The protective station formed between the wire clip 3, the outer wall of the stator core 1, and the inner wall of the terminal housing 2 has an aperture larger than the sum of the diameters of at least three cables. After the cable passes through the protective station, the wire clip 3 is suitable for annularly limiting the cable to prevent the cable from moving in the left and right directions, and the wire clip 3 can also squeeze the outer wall of the cable to prevent the cable from moving up and down in the axial direction.

[0054] Reference Attachment Figure 2 or 4, and the side wall of the terminal housing 2 near the wire clip 3 is provided with a plurality of connection holes, into which cables are suitable for being inserted; one connection hole corresponds to one cable, and preferably, the number of cables is at least three, corresponding to the three-phase line required for connecting the motor to the power supply. One sealing head 33 corresponds to one connection hole, and after the cable passes through the connection hole and is fixedly connected to the terminal in the terminal housing 2, the sealing head 33 is suitable for being inserted into the connection hole, and the sealing head 33 is suitable for sealing the gap between the connection hole and the cable; the sealing head 33 is suitable for covering the connection hole to prevent external liquid from entering the terminal housing 2.

[0055] Reference Attachment Figure 4 The stator core 1 has an axially defined positioning groove 10 on its outer wall. The width of the bottom wall of the positioning groove 10 is greater than the width of the opening. A positioning block 34 is provided on the inner wall of the terminal housing 2. The positioning block 34 has a trapezoidal cross-section and is adapted to slide within the positioning groove 10. The positioning block 34 slidably fits within the positioning groove 10 and, when the terminal housing 2 is unstressed, does not slide freely within the positioning groove 10.

[0056] Some embodiments provide a terminal molded housing assembly, characterized by comprising:

[0057] The terminal plastic housing 2 is slidably arranged on the outer wall of the stator core 1;

[0058] A wire clip 3, one end of which is arranged on the side wall of the terminal plastic housing 2 and the other end extends toward the outer wall of the stator core 1;

[0059] The inner wall of the wire clip 3 cooperates with the inner wall of the terminal plastic shell 2 and the outer wall of the stator core 1 to form a protective station, and the cable is suitable for extending downward through the protective station.

[0060] Furthermore, the wire clip 3 includes: a transverse plate 31 and a longitudinal plate 32, one end of the transverse plate 31 is arranged on the upper side wall of the terminal plastic shell 2, and the transverse plate 31 and the axis of the stator core 1 are parallel to each other;

[0061] The longitudinal plate 32 extends along the radial direction of the stator core 1 , and one end of the longitudinal plate 32 is arranged on the side wall of the transverse plate 31 , and the other end extends toward the outer wall of the stator core 1 .

[0062] Furthermore, a plurality of connection holes are provided on the side wall of the terminal housing 2 close to the wire clip 3, and the cables are suitable for being inserted into the connection holes;

[0063] One sealing head 33 corresponds to one connecting hole, and the sealing head 33 is suitable for covering the connecting hole to prevent external liquid from entering the terminal plastic shell 2.

[0064] Furthermore, a positioning groove 10 is provided on the outer wall of the stator core 1 along the axial direction, and the width of the bottom wall of the positioning groove 10 is greater than the width of the opening;

[0065] A positioning block 34 is provided on the inner wall of the terminal plastic housing 2 . The cross section of the positioning block 34 is trapezoidal and is suitable for sliding in the positioning groove 10 .

[0066] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0067] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0068] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A motor stator, characterized in that: include: stator core (1); A terminal plastic housing (2) is slidably arranged on the outer wall of the stator core (1); A wire clip (3), one end of which is arranged on the side wall of the terminal plastic shell (2) and the other end of which extends toward the outer wall of the stator core (1); The cable is passed through the wire clamp (3) and fixed on the terminal plastic shell (2), and the wire clamp (3) is suitable for limiting the left and right movement of the cable.

2. The motor stator according to claim 1, characterized in that: The wire clip (3) comprises: a transverse plate (31) and a longitudinal plate (32); one end of the transverse plate (31) is arranged on the upper side wall of the terminal plastic shell (2), and the axis of the transverse plate (31) and the stator core (1) are parallel to each other; The longitudinal plate (32) extends in the radial direction of the stator core (1), and one end of the longitudinal plate (32) is arranged on the side wall of the transverse plate (31), and the other end extends toward the outer wall of the stator core (1).

3. The motor stator according to claim 1, characterized in that: The wire clip (3) is C-shaped, and the inner wall of the wire clip (3) cooperates with the inner wall of the terminal plastic shell (2) and the outer wall of the stator core (1) to form a protective station, and the cable is suitable for extending downward through the protective station.

4. The motor stator according to claim 2 or 3, characterized in that: A plurality of connection holes are provided on the side wall of the terminal plastic housing (2) close to the wire clip (3), and cables are suitable for being inserted into the connection holes; A sealing head (33) corresponds to a connecting hole, and the sealing head (33) is suitable for covering the connecting hole to prevent external liquid from entering the terminal plastic shell (2).

5. The motor stator according to claim 1, characterized in that: A positioning groove (10) is provided on the outer wall of the stator core (1) along the axial direction, and the width of the bottom wall of the positioning groove (10) is greater than the width of the opening.

6. The motor stator according to claim 5, characterized in that: A positioning block (34) is provided on the inner wall of the terminal plastic shell (2); the cross section of the positioning block (34) is trapezoidal; the positioning block (34) is suitable for sliding in the positioning groove (10).

7. The motor stator according to claim 1, characterized in that: include: A terminal plastic housing (2) is slidably arranged on the outer wall of the stator core (1); A wire clip (3), one end of which is arranged on the side wall of the terminal plastic shell (2) and the other end of which extends toward the outer wall of the stator core (1); The inner wall of the wire clip (3) cooperates with the inner wall of the terminal plastic shell (2) and the outer wall of the stator core (1) to form a protective station, and the cable is suitable for extending downward through the protective station.

8. The motor stator according to claim 7, characterized in that: The wire clip (3) comprises: a transverse plate (31) and a longitudinal plate (32); one end of the transverse plate (31) is arranged on the upper side wall of the terminal plastic shell (2), and the axis of the transverse plate (31) and the stator core (1) are parallel to each other; The longitudinal plate (32) extends in the radial direction of the stator core (1), and one end of the longitudinal plate (32) is arranged on the side wall of the transverse plate (31), and the other end extends toward the outer wall of the stator core (1).

9. The motor stator according to claim 8, characterized in that: A plurality of connection holes are provided on the side wall of the terminal plastic housing (2) close to the wire clip (3), and cables are suitable for being inserted into the connection holes; A sealing head (33) corresponds to a connecting hole, and the sealing head (33) is suitable for covering the connecting hole to prevent external liquid from entering the terminal plastic shell (2).

10. The motor stator according to claim 9, characterized in that: The outer wall of the stator core (1) is provided with a positioning groove (10) along the axial direction, and the width of the bottom wall of the positioning groove (10) is greater than the width of the opening; A positioning block (34) is provided on the inner wall of the terminal plastic shell (2); the cross section of the positioning block (34) is trapezoidal; the positioning block (34) is suitable for sliding in the positioning groove (10).

Images