New energy automobile air conditioner motor stator insulation framework

Abstract

The utility model provides a new energy automobile air conditioner motor stator insulation framework comprising a framework body, a chip groove is arranged on the installation end face of the framework body and a stator iron core in an inward concave manner, and a groove body on one side of the chip groove is opened and is communicated with the outer circumferential surface of the framework body; positioning columns are fixed in the chip grooves in a protruding mode and matched with the mounting holes in a one-to-one mode, and gaps are formed between the peripheral faces of the positioning columns and the side walls of the chip grooves. According to the utility model, the structural design is reasonable, the framework body and the stator iron core can be effectively positioned and installed through the positioning column, the chip groove is arranged below the positioning column, the chip groove is communicated with the peripheral surface of the framework body, chips generated during installation can be accumulated in the chip groove and can be discharged along the chip groove, and the chips cannot be remained on the installation end surface of the framework body and the stator iron core; therefore, tight connection between the framework body and the mounting end face of the stator core can be effectively ensured, and pollution of residual chippings on the mounting end face to a refrigerant is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor production and design, and in particular to a stator insulation frame of a new energy automobile air-conditioning motor. Background Art

[0002] In the production design of new energy vehicle air conditioners, stator insulation frames are usually required in the motor part to support the stator winding and insulation materials, and to resist the electromagnetic force through the stator insulation frame to prevent motor failure. At present, the existing motor stator insulation frames usually include Figure 1 The frame body shown in the figure usually has a plurality of positioning posts protruding from one end surface of the frame body, and the positioning posts are used to be plugged in with the mounting holes of the stator.

[0003] In the existing plug-in structure, an interference fit is generally adopted between the positioning column and the mounting hole. During the installation and plug-in process, the positioning column has a shearing effect on the inner wall of the mounting hole, thereby shearing, grinding and scratching the plastic mounting hole. During the installation, some trivial plastic debris is sheared, ground and scraped off, and this part of the plastic debris will be adsorbed on the mounting surface of the frame body and the stator core.

[0004] The current method is to use a blower to manually blow away the plastic debris. However, this operation process requires labor, time and effort, and it cannot completely clean the debris on the installation surface. The uncleaned plastic debris remains on the installation surface, and due to the use requirements of new energy vehicle air conditioning electronics, this position is immersed in the refrigerant when in use, and the retention of plastic debris will cause contamination to the refrigerant.

[0005] Therefore, how to design the motor stator insulation frame so that it can be easily positioned and installed with the stator core, while effectively discharging plastic debris to avoid the contamination of the refrigerant by these debris, has become the focus of the improvement of new energy vehicle air-conditioning motor components. Utility Model Content

[0006] The technical problem to be solved by the utility model is: in order to overcome the shortcomings of the prior art, the utility model provides a stator insulation frame for a new energy vehicle air-conditioning motor, which has a reasonable structural design. Through the designed and arranged chip grooves and positioning columns, on the one hand, it can facilitate the positioning and installation cooperation between the positioning columns and the stator core, and on the other hand, it can effectively guide the discharge of debris generated during the installation process to avoid the debris staying at the installation end surface and causing pollution to the refrigerant.

[0007] The utility model solves the technical problem by adopting the following technical solution: a stator insulation frame of a new energy automobile air-conditioning motor, which is used for positioning and installing a stator core, and has a plurality of mounting holes on the stator core. The stator insulation frame comprises a frame body, and a chip removal groove is concavely provided on the mounting end surface of the frame body and the stator core, and a groove body on one side of the chip removal groove is open and connected with the outer peripheral surface of the frame body; a positioning column is protruded and fixed in the chip removal groove, and the positioning column is installed in a one-to-one matching manner with the mounting hole, and a gap is provided between the outer peripheral surface of the positioning column and the side wall of the chip removal groove.

[0008] Furthermore, the chip removal grooves correspond to the yoke positions of the stator core and are distributed in annular intervals.

[0009] Furthermore, in order to facilitate direct chip discharge from the chip discharge groove, the chip discharge groove along the mounting end surface of the frame body and the stator core is in a C-shaped structure, and the opening of the C-shaped structure is outward and communicated with the outer peripheral surface of the frame body. Through the structural design of the open groove, the chips sheared, ground, and scraped by the mounting column during the matching installation can directly fall into the chip discharge groove and be discharged outward through the opening.

[0010] Preferably, the positioning column comprises a cylindrical portion and a truncated cone portion of an integral structure, wherein the truncated cone portion is a truncated cone-shaped structure with a small diameter at the upper end and a large diameter at the lower end, and the lower bottom surface of the truncated cone portion is connected to the upper end surface of the cylindrical portion. The structure of the truncated cone portion being small at the upper end and large at the lower end can provide an effective guide for the matching connection between the positioning column and the mounting hole.

[0011] Furthermore, a plurality of matching flat grooves are evenly distributed in an annular direction on the outer peripheral surface of the positioning column, and the matching flat grooves are opened along the axial direction of the positioning column.

[0012] Furthermore, the matching flat groove extends from the middle and lower section of the truncated cone portion in the axial direction to the middle and lower section of the cylindrical portion, and the cut-off plane of the matching flat groove is the plane where the mounting end faces of the frame body and the stator core are located. The design of the flat groove facilitates the effective and tight fit between the positioning column and the mounting hole, and the cut-off plane provides a stop point limit for the installation and insertion of the stator core in the circumferential direction of the positioning column, and the stop point limit circumferentially forms a chamber for accommodating debris caused by the tight fit, guiding the temporary storage and discharge of the debris.

[0013] Furthermore, the connecting end between the cylindrical portion and the chip groove has an arc-shaped guiding transition surface. Through the design of the arc-shaped guiding transition surface, the connecting position between the cylindrical portion and the chip groove is smoother, further avoiding dead angles at the connecting position, which is more conducive to the guided storage and discharge of debris.

[0014] The beneficial effect of the utility model is that the stator insulation frame of the new energy vehicle air-conditioning motor provided by the utility model has a reasonable structural design, and the frame body and the stator core can be effectively positioned and installed through the positioning column. At the same time, there is a chip groove below the positioning column, and the chip groove is connected with the outer peripheral surface of the frame body. The debris generated during installation can be accumulated in the chip groove and can be discharged outside the chip groove, and will not remain on the installation end surface of the frame body and the stator core. Therefore, it can effectively ensure that the frame body and the stator core installation end surface are tightly connected, and avoid the residual debris on the installation end surface from polluting the refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional diagram of a traditional stator insulation frame.

[0017] Figure 2 It is a stereogram of the optimal embodiment of the utility model.

[0018] Figure 3 It is the front view of the optimal embodiment of the utility model.

[0019] Figure 4 It is a side view of the optimal embodiment of the utility model.

[0020] Figure 5 yes Figure 2 A magnified schematic diagram of center A.

[0021] Figure 6 yes Figure 4 A magnified schematic diagram of point B in the middle.

[0022] In the figure, 1, positioning column 1-1, truncated cone part 1-2, matching flat groove 1-3, cylindrical part 1-4, arc-shaped guide transition surface 2, chip removal groove 3, and skeleton body. DETAILED DESCRIPTION

[0023] The utility model is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model, and the directions and references (for example, up, down, left, right, etc.) can only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0024] like Figures 2 to 6The stator insulation frame of a new energy vehicle air conditioner motor shown is the optimal embodiment of the utility model. The stator insulation frame is used to position and install the stator core. The stator core in this embodiment is provided with a yoke in the circumferential direction, and the inner wall of the yoke has a tooth in the circumferential direction. The yoke of the stator core is provided with mounting holes at the position corresponding to the outer ring of each tooth, and each tooth has a mounting hole.

[0025] like Figure 2 As shown, the stator insulation frame includes a frame body 3. The radial cross section of the frame body 3 is consistent with the radial cross section of the base iron core, and is connected and fixed by the matching of the mounting hole and the positioning column 1.

[0026] Specifically, on the mounting end faces of the frame body 3 and the stator core, corresponding to the position of each mounting hole, a chip groove is recessed. The chip grooves 2 are distributed in annular intervals relative to the frame body 3. The cross-section of the chip groove 2 along the mounting end face of the frame body 3 and the stator core is a C-shaped structure, and the opening of the C-shaped structure is outward and connected to the outer peripheral surface of the frame body 3, that is, one side of the chip groove 2 is open and passes through the outer peripheral surface of the frame body 3. Through the structural design of the open groove, the debris sheared, ground, and scraped by the mounting column during the cooperative installation can directly fall into the chip groove 2 and be discharged outward through the opening.

[0027] A positioning column 1 is protruded and fixed in the chip groove 2. The positioning column 1 is installed in a one-to-one matching manner with the mounting hole, and there is a gap between the outer peripheral surface of the positioning column 1 and the side wall of the chip groove 2. Specifically, the positioning column 1 includes a cylindrical portion 1-3 and a truncated cone portion 1-1 of an integrated structure. The truncated cone portion 1-1 is a truncated cone-shaped structure with a small diameter at the upper end and a large diameter at the lower end. The lower bottom surface of the truncated cone portion 1-1 is connected to the upper end surface of the cylindrical portion 1-3. The structure of the truncated cone portion 1-1 with a small upper end and a large lower end can provide an effective guide for the matching connection between the positioning column 1 and the mounting hole, and the positioning column 1 enters the mounting hole through the upper guide with a smaller diameter, and then fits tightly.

[0028] There are four matching flat grooves 1-2 evenly distributed in the circumferential direction on the outer surface of the positioning column 1, and the matching flat grooves 1-2 are opened along the axial direction of the positioning column 1. The matching flat grooves 1-2 extend from the middle and lower sections of the axial direction of the truncated cone portion 1-1 to the middle and lower sections of the cylindrical portion 1-3, and the cut-off plane of the matching flat grooves 1-2 is the plane where the mounting end faces of the skeleton body 3 and the stator core are located. The design of the flat grooves can facilitate the effective and tight fit between the positioning column 1 and the mounting hole, and the cut-off plane provides a stop point limit for the installation and insertion of the stator core in the circumferential direction of the positioning column 1, and the stop point limit forms a circumferential chamber for accommodating debris caused by the tight fit, guiding the debris to be temporarily stored and discharged. In this way, when the positioning column 1 is installed tightly with the mounting hole, the debris from shearing, grinding and scraping can fall into the accommodating chamber below and be discharged from the opening position, and will not remain on the mounting end faces of the frame body 3 and the stator core. Therefore, it can effectively ensure that the frame body 3 is tightly connected with the mounting end faces of the stator core, and avoid the residual debris on the mounting end faces from polluting the refrigerant.

[0029] At the same time, in this embodiment, in order to further avoid a dead angle at the connection position between the cylindrical portion 1-3 and the chip groove 2, the connection end of the cylindrical portion 1-3 and the chip groove 2 has an arc-shaped guide transition surface 1-4. Through the design of the arc-shaped guide transition surface 1-4, the connection position between the cylindrical portion 1-3 and the chip groove 2 is smoother and less prone to dead angles, which is more conducive to the guided storage and discharge of debris.

[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A stator insulation frame for a new energy vehicle air conditioner motor, used for positioning and installing a stator core, with a plurality of mounting holes on the stator core, characterized in that: It comprises a frame body (3), wherein the frame body (3) and the stator core mounting end surface are provided with a chip removal groove, and one side of the chip removal groove (2) is open and connected with the outer peripheral surface of the frame body (3); A positioning column (1) is protruded and fixed in the chip removal groove (2), and the positioning column (1) is installed in a one-to-one matching manner with the installation hole. There is a gap between the outer peripheral surface of the positioning column (1) and the side wall of the chip removal groove (2).

2. The stator insulation frame of the new energy automobile air conditioner motor according to claim 1, characterized in that: The chip removal grooves (2) correspond to the yoke positions of the stator core and are distributed at intervals in a ring shape.

3. The stator insulation frame of the new energy automobile air conditioner motor according to claim 2, characterized in that: The chip removal groove (2) has a C-shaped structure along the cross section of the mounting end surface of the frame body (3) and the stator core, and the opening of the C-shaped structure faces outward and is connected to the outer peripheral surface of the frame body (3).

4. The stator insulation frame of the new energy automobile air conditioner motor according to claim 1, characterized in that: The positioning column (1) comprises a cylindrical portion (1-3) and a truncated cone portion (1-1) of an integral structure; the truncated cone portion (1-1) is a truncated cone-shaped structure with a small diameter at the upper end and a large diameter at the lower end; the lower bottom surface of the truncated cone portion (1-1) is connected to the upper end surface of the cylindrical portion (1-3).

5. The stator insulation frame of the new energy automobile air conditioner motor as claimed in claim 4, characterized in that: A plurality of matching flat grooves (1-2) are evenly distributed in an annular direction on the outer peripheral surface of the positioning column (1), and the matching flat grooves (1-2) are opened along the axial direction of the positioning column (1).

6. The stator insulation frame of the new energy automobile air conditioner motor according to claim 5, characterized in that: The matching flat groove (1-2) extends from the middle and lower section of the truncated cone portion (1-1) in the axial direction to the middle and lower section of the cylindrical portion (1-3), and the cut-off plane of the matching flat groove (1-2) is the plane where the mounting end faces of the frame body (3) and the stator core are located.

7. The stator insulation frame of the new energy automobile air conditioner motor according to claim 6, characterized in that: The connecting end between the cylindrical portion (1-3) and the chip removal groove (2) has an arc-shaped guiding transition surface (1-4).

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