Stator coil framework and motor assembly

Abstract

The utility model relates to the compressor technology field, and discloses a stator coil framework and a motor assembly, a framework body is provided with a plugging structure, the plugging structure is used for plugging a terminal and clamping an enameled wire, the plugging structure is internally provided with a plurality of clamping grooves at intervals, and the clamping grooves are used for clamping the enameled wire. The clamping groove comprises a first clamping arm and a second clamping arm which are oppositely arranged, a gap is formed between the first clamping arm and the second clamping arm, and a first hollow space is formed in the end, away from the second clamping arm, of the first clamping arm; one end, far away from the first clamping arm, of the second clamping arm is provided with a second hollow-out space, and when an enameled wire is clamped, the first clamping arm deforms towards the first hollow-out space, and the second clamping arm deforms towards the second hollow-out space; the utility model has the following technical effects: 1, the operation is convenient, the stability of clamping the enameled wire is improved, and the risk of cross-phase contact is reduced; and 2, the clamping device is suitable for clamping the enameled wire with a larger wire diameter range.

Description

Technical Field

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

[0002] The stator coil frame of the current vertical rotary compressor motor is provided with a plug-in structure for plugging in terminals and clamping enameled wires, wherein the plug-in structure includes a clamping groove for clamping the enameled wires.

[0003] The width of the existing clamping groove is usually slightly smaller than the width of the enameled wire. For a single lead wire, if the width of the clamping groove is too small, the enameled wire will be difficult to install; if the width of the clamping groove is too large, the enameled wire cannot be clamped. Since the enameled wire has a certain plasticity and there is a vibration environment during the production process, it is easy for the enameled wire to rebound and loosen. Therefore, there is a hidden danger of short circuit due to contact with other winding cross-phases; in addition, the existing clamping groove has a large restriction on the wire diameter size of the clamped enameled wire, and cannot meet the clamping requirements of enameled wires with a larger wire diameter range. Utility Model Content

[0004] In order to address the deficiencies of the prior art, the utility model provides a stator coil skeleton and a motor assembly, which facilitates operation and improves the stability of clamping enameled wires, reduces the risk of cross-phase contact, and is suitable for clamping enameled wires with a larger wire diameter range.

[0005] The technical purpose to be achieved by the utility model is achieved through the following technical solutions:

[0006] The utility model provides a stator coil frame, comprising a frame body, on which a plug-in structure is provided, and the plug-in structure is used for plugging in terminals and clamping enameled wires;

[0007] A plurality of clamping grooves are arranged at intervals in the plug-in structure, and the clamping grooves include a first clamping arm and a second clamping arm arranged opposite to each other, a gap is provided between the first clamping arm and the second clamping arm, a first hollow space exists at one end of the first clamping arm away from the second clamping arm, and a second hollow space exists at one end of the second clamping arm away from the first clamping arm;

[0008] When clamping the enameled wire, the first clamping arm is deformed toward the first hollow space, and the second clamping arm is deformed toward the second hollow space.

[0009] In some implementations, the opening of the clamping groove is open, which is convenient for guiding and clamping the enameled wire, and also expands the clamping requirements for the wire diameter range of the enameled wire.

[0010] In some implementations, a first bevel is formed at one end of the first clamping arm close to the opening of the clamping arm, and a second bevel is formed at one end of the second clamping arm close to the opening of the clamping arm;

[0011] The first bevel angle and the second bevel angle form an open shape, which has the effects of convenient assembly, high stability in use and strong snap-on versatility.

[0012] In some implementations, the first bevel angle is 1 to 10 degrees relative to the first clamping arm, and the second bevel angle is 1 to 10 degrees relative to the second clamping arm, so as to facilitate the clamping operation.

[0013] In some implementations, the thickness of the first clamping arm is T, the height of the first clamping arm is H, and T is 1 / 3H to 1 / 20H, so as to ensure the clamping force and clamping stability of the enameled wire.

[0014] In some implementations, the first clamping arm includes a first surface disposed opposite to the second clamping arm, and a first protrusion for clamping the enameled wire is formed on one side of the first surface close to the outer periphery of the frame body;

[0015] The second clamping arm includes a second surface arranged opposite to the first clamping arm, and a second protrusion for clamping the enameled wire is formed on one side of the second surface close to the outer periphery of the skeleton body, further improving the clamping stability of the enameled wire and reducing the risk of cross-phase contact.

[0016] In some implementations, the first protrusion protrudes obliquely toward the second protrusion, the second protrusion protrudes obliquely toward the first protrusion, and the gap between the first protrusion and the second protrusion decreases from top to bottom, thereby facilitating the clamping operation of the enameled wire.

[0017] In some implementations, the skeleton body is injection molded using thermoplastic material, which is easy to produce and process and has good plasticity, thereby improving structural accuracy and further improving stability in use.

[0018] The utility model also provides a motor assembly, comprising a stator core and any one of the stator coil skeletons described above;

[0019] The skeleton body is connected to the upper end surface of the stator core, so as to facilitate the clamping of the enameled wire led out.

[0020] In some implementations, the skeleton body includes an annular shell and a plurality of sub-skeletons for winding stator windings, the sub-skeletons are spaced apart along the inner circumference of the annular shell, and the plug-in structure is located on the outer circumference of the annular shell, which is suitable for the assembly requirements of the motor assembly.

[0021] In summary, the utility model has at least the following benefits:

[0022] 1. The stator coil skeleton provided by the utility model is provided with a first hollow space and a second hollow space on the outer sides of the first clamping arm and the second clamping arm. When the first clamping arm and the second clamping arm clamp the enameled wire, they can be deformed toward the first hollow space and the second hollow space respectively, thereby facilitating the clamping operation and improving the stability of the clamped enameled wire, and reducing the risk of cross-phase contact. At the same time, it is also suitable for the clamping needs of enameled wires with a larger wire diameter range.

[0023] 2. The motor assembly provided by the utility model has the advantages of convenient assembly, high stability in use and strong universality in snap-on connection after applying the stator coil skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a stator coil skeleton of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a structural schematic diagram of the plug-in structure of Example 1 of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the plug slot of Embodiment 2 of the present utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the plug slot of Embodiment 3 of the present utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the motor assembly of Example 4 of the utility model;

[0029] Figure 6 This is a schematic structural diagram of a stator coil skeleton of Embodiment 4 of the present utility model;

[0030] 100, skeleton body; 110, sub-skeleton;

[0031] 200, plug-in structure; 210, clamping groove; 211, first clamping arm; 212, second clamping arm; 213, first hollow space; 214, second hollow space; 215, first oblique angle; 216, second oblique angle; 217, first protrusion; 218, second protrusion;

[0032] 300. Stator core. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figure 1 and Figure 2 A stator coil skeleton comprises a skeleton body 100, on which a plug-in structure 200 is provided, and the plug-in structure 200 is used for plugging in terminals and clamping enameled wires.

[0037] Usually, there are two lead-in wiring methods for the stator core 300, one is the lead-in by soft wire, and the other is the lead-in by the plug-in structure 200 on the skeleton body 100. In this example, the lead-in wiring method by the plug-in structure 200 on the skeleton body 100 is applicable.

[0038] The plug-in structure 200 can simultaneously realize the plug-in of the terminal and the clamping of the enameled wire. During the specific operation, the enameled wire is first clamped on the plug-in structure 200, and then the terminal is plugged on the plug-in structure 200.

[0039] Specifically, a plurality of clamping grooves 210 are arranged at intervals in the plug-in structure 200 , and the clamping grooves 210 are used for clamping the enameled wires. For example, there are three clamping grooves 210 , and the three clamping grooves 210 are respectively used for clamping three enameled wires.

[0040] It should be noted that, in order to cooperate with the plug-in structure 200 to realize the plug-in operation of the terminal, a docking plug block can also be provided between two adjacent card slots 210 to facilitate the plug-in operation with the terminal. Of course, this example does not limit the number of card slots 210 and the position setting of the docking plug block, which can be adjusted according to actual needs.

[0041] The clamping groove 210 includes a first clamping arm 211 and a second clamping arm 212 which are arranged opposite to each other. There is a gap between the first clamping arm 211 and the second clamping arm 212 for the enameled wire to pass through. The size of the gap is slightly smaller than the wire diameter of the enameled wire so as to facilitate the clamping effect on the enameled wire.

[0042] There is a first hollow space 213 at one end of the first clamping arm 211 away from the second clamping arm 212, and there is a second hollow space 214 at one end of the second clamping arm 212 away from the first clamping arm 211; when clamping the enameled wire, the first clamping arm 211 deforms toward the first hollow space 213, and the second clamping arm 212 deforms toward the second hollow space 214.

[0043] In the specific application process, one end of the enameled wire is located above the clamping groove 210, and the length of the enameled wire located above the clamping groove 210 is ensured to be greater than the length of the clamping groove 210, that is, it is ensured that the end of the enameled wire can be clamped and the enameled wire is clamped downward along the opening of the clamping groove 210, so as to facilitate the clamping operation of the enameled wire and improve the operational convenience.

[0044] During the process of clamping the enameled wire downward along the opening of the clamping groove 210, since the gap between the first clamping arm 211 and the second clamping arm 212 of the clamping groove 210 is slightly smaller than the wire diameter of the enameled wire, the first clamping arm 211 and the second clamping arm 212 will be deformed toward the first hollow space 213 and the second hollow space 214 respectively due to the expansion effect of the enameled wire. This deformation effect facilitates the clamping operation and improves the stability of the clamped enameled wire, as well as reduces the risk of cross-phase contact. It is also suitable for the clamping needs of enameled wires with a larger wire diameter range.

[0045] Embodiment 2:

[0046] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the stator coil skeleton of the utility model, see Figure 3 .

[0047] The opening of the clamping groove 210 is in an open shape, which facilitates the guiding and clamping of the enameled wire and also expands the clamping requirements for the wire diameter range of the enameled wire.

[0048] Specifically, a first bevel 215 is formed on one end of the first clamping arm 211 close to the opening of the clamping arm, and a second bevel 216 is formed on one end of the second clamping arm 212 close to the opening of the clamping arm; the first bevel 215 and the second bevel 216 form an open shape, and the design of the open shape has the effects of easy assembly, high stability in use and strong clamping versatility.

[0049] The design of the open shape makes it easy for the enameled wires with larger diameters to be clamped and moved gradually toward the lower end of the clamping groove 210 through the opening of the clamping groove 210. For enameled wires with smaller diameters, the open shape can also serve as a guide for clamping, thereby achieving advantages such as easy assembly.

[0050] In some embodiments, the first bevel 215 has an inclination angle of 1 to 10° relative to the first clamping arm 211 , and the second bevel 216 has an inclination angle of 1 to 10° relative to the second clamping arm 212 , which facilitates the clamping operation.

[0051] For example, in one example, the inclination angle of the first bevel 215 relative to the first clamping arm 211 is 5°, and the inclination angle of the second bevel 216 relative to the second clamping arm 212 is 5°. The inclination angles of the first bevel 215 and the second bevel 216 are both designed to be 5°. While ensuring that the open shape formed by the first bevel 215 and the second bevel 216 can play a clamping and guiding role for the enameled wire, it can also ensure the clamping stability of the first clamping arm 211 and the second clamping arm 212.

[0052] In some implementations, the thickness of the first clamping arm 211 is set to T, and the height of the first clamping arm 211 is set to H, wherein T is 1 / 3H to 1 / 20H, so as to ensure the clamping force and clamping stability of the enameled wire.

[0053] For example, in one example, the thickness of the first clamping arm 211 is 0.5 mm, and the height of the first clamping arm 211 is 15 mm. The setting of the thickness and height can ensure the stability of the clamping operation.

[0054] Embodiment 3:

[0055] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the stator coil skeleton of the utility model, see Figure 4 .

[0056] The first clamping arm 211 includes a first surface arranged opposite to the second clamping arm 212, and a first protrusion 217 for clamping the enameled wire is formed on the side of the first surface close to the outer periphery of the skeleton body 100. Similarly, the second clamping arm 212 includes a second surface arranged opposite to the first clamping arm 211, and a second protrusion 218 for clamping the enameled wire is formed on the side of the second surface close to the outer periphery of the skeleton body 100, thereby further improving the clamping stability of the enameled wire and reducing the risk of cross-phase contact.

[0057] In order to avoid excessive clamping effect affecting the normal performance of the enameled wire and to ensure stable clamping effect of the enameled wire, a first protrusion 217 and a second protrusion 218 are formed on the first surface and the second surface on one side close to the outer periphery of the skeleton body 100 to improve the clamping stability of the enameled wire near the end position and effectively prevent the end position of the enameled wire from falling off.

[0058] Specifically, the first protrusion 217 protrudes obliquely toward the second protrusion 218, and the second protrusion 218 protrudes obliquely toward the first protrusion 217. The gap between the first protrusion 217 and the second protrusion 218 decreases from top to bottom, which facilitates the clamping operation of the enameled wire.

[0059] When dealing with enameled wires of different wire diameters, since the gap between the first protrusion 217 and the second protrusion 218 decreases from top to bottom, it is understandable that for enameled wires with larger wire diameters, compared with enameled wires with smaller wire diameters, the enameled wires with larger wire diameters are clamped at the upper end of the clamping groove 210, while the enameled wires with smaller wire diameters are clamped at the lower end of the clamping groove 210, thereby achieving the clamping requirements for enameled wires with a larger wire diameter range.

[0060] In some embodiments, the skeleton body 100 is injection molded by thermoplastic material. The skeleton body 100 molded in this way is easy to produce and process and has good plasticity, thereby improving structural accuracy and thus improving stability in use.

[0061] Embodiment 4:

[0062] This embodiment provides a motor assembly based on the above embodiment. Figure 5 and Figure 6 .

[0063] A motor assembly includes a stator core 300 and a stator coil frame in any of the above embodiments, wherein a frame body 100 is connected to the upper end surface of the stator core 300 to facilitate clamping of the enameled wire led out.

[0064] The skeleton body 100 includes an annular shell and a plurality of sub-skeletons 110 for winding stator windings. The sub-skeletons 110 are spaced apart along the inner periphery of the annular shell. The plug-in structure 200 is located on the outer periphery of the annular shell, which is suitable for the assembly requirements of the motor assembly.

[0065] It can be known that the stator core 300 is a hollow ring structure, and a plurality of stator teeth are spaced apart on the inner circumference of the stator core 300 , a stator slot is defined between two adjacent stator teeth, and the number and distribution position of the sub-skeleton 110 match the stator teeth to facilitate winding the stator winding on the sub-skeleton 110 .

[0066] The plug-in structure 200 is located on the outer periphery of the annular shell and is an integrally formed structure with the annular shell. The upper end of the plug-in structure 200 exceeds the upper end of the annular shell to facilitate the terminal to be plugged in. When the enameled wire is clamped, it is convenient to lead the enameled wire out of the skeleton body 100 and the stator core 300 through the clamping groove 210 of the plug-in structure 200.

[0067] The motor component provided by the utility model has the advantages of convenient assembly, high use stability and strong clamping versatility after applying the stator coil frame.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0070] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0071] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A stator coil skeleton, characterized in that: It comprises a skeleton body (100), on which a plug-in structure (200) is provided, and the plug-in structure (200) is used for plugging in terminals and clamping enameled wires; A plurality of clamping grooves (210) are arranged at intervals in the plug-in structure (200); the clamping grooves (210) comprise a first clamping arm (211) and a second clamping arm (212) which are arranged opposite to each other; a gap is provided between the first clamping arm (211) and the second clamping arm (212); a first hollow space (213) is provided at one end of the first clamping arm (211) away from the second clamping arm (212); and a second hollow space (214) is provided at one end of the second clamping arm (212) away from the first clamping arm (211); When clamping the enameled wire, the first clamping arm (211) is deformed toward the first hollow space (213), and the second clamping arm (212) is deformed toward the second hollow space (214).

2. The stator coil skeleton according to claim 1, characterized in that: The opening of the clamping groove (210) is in an open shape.

3. The stator coil skeleton according to claim 2, characterized in that: A first bevel (215) is formed at one end of the first clamping arm (211) close to the opening of the clamping arm, and a second bevel (216) is formed at one end of the second clamping arm (212) close to the opening of the clamping arm; The first bevel (215) and the second bevel (216) form an open shape.

4. The stator coil skeleton according to claim 3, characterized in that: The first oblique angle (215) is at an inclination angle of 1 to 10° relative to the first clamping arm (211), and the second oblique angle (216) is at an inclination angle of 1 to 10° relative to the second clamping arm (212).

5. The stator coil frame according to claim 1, characterized in that The thickness of the first clamping arm (211) is T, and assuming that the height of the first clamping arm (211) is H, T is 1 / 3H to 1 / 20H.

6. The stator coil skeleton according to claim 1, characterized in that: The first clamping arm (211) comprises a first surface arranged opposite to the second clamping arm (212), and a first protrusion (217) for clamping the enameled wire is formed on one side of the first surface close to the outer periphery of the skeleton body (100); The second clamping arm (212) comprises a second surface arranged opposite to the first clamping arm (211), and a second protrusion (218) for clamping the enameled wire is formed on a side of the second surface close to the outer periphery of the skeleton body (100).

7. The stator coil skeleton according to claim 6, characterized in that: The first protrusion (217) protrudes obliquely toward the second protrusion (218), and the second protrusion (218) protrudes obliquely toward the first protrusion (217), and the gap between the first protrusion (217) and the second protrusion (218) decreases from top to bottom.

8. The stator coil skeleton according to any one of claims 1 to 7, characterized in that: The skeleton body (100) is injection-molded using thermoplastic material.

9. A motor assembly, characterized in that: Comprising a stator core (300) and a stator coil skeleton according to any one of claims 1 to 8; The skeleton body (100) is connected to the upper end surface of the stator core (300).

10. The motor assembly according to claim 9, characterized in that The skeleton body (100) comprises an annular shell and a plurality of sub-skeletons (110) for winding stator windings, wherein the sub-skeletons (110) are distributed at intervals along the inner circumference of the annular shell, and the plug-in structure (200) is located on the outer circumference of the annular shell.

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