Insulation framework for stator core

Abstract

The utility model relates to the technical field of motor manufacturing, and discloses an insulating framework for a stator core, which comprises a framework body and a wiring terminal, the wiring terminal is partially embedded in the framework body, the wiring terminal comprises a plurality of binding posts, a wiring sheet and a connecting piece, the binding posts are arranged in the framework body, and the wiring sheet is arranged in the framework body. One end of each binding post is correspondingly connected with one end of one lug plate, the other end of each lug plate is connected with one end of the connecting piece, the plurality of binding posts and the lug plates are connected into an integrated structure by the connecting piece, and a breakable V-CUT folding groove is formed in the connecting position of the connecting piece and the lug plates. According to the utility model, the plurality of binding posts and the lug plates are connected to form an integrated structure through the connecting pieces, so that on one hand, a gap between two adjacent binding posts and two adjacent lug plates is ensured, and the phenomenon of short circuit of a stator caused by contact of the two lug plates during plastic packaging is avoided; and on the other hand, the centers of the plurality of binding posts can be effectively ensured to be on the same straight line, so that the product percent of pass can be effectively improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to an insulating skeleton for a stator core. Background Art

[0002] As a sensor that can accurately transmit and measure angles, the resolver is mainly used in industrial servos and motor drive systems of electric vehicles. It can provide angle (speed) signals to the drive controller. Its principle and manufacturing method are similar to those of traditional motors.

[0003] Currently, the commonly used insulating skeletons are generally divided into manual manufacturing and mechanized manufacturing during the manufacturing stage. During manual manufacturing, insulation is usually achieved by padding insulating paper in the core slots and at the ends and adding insulating end plates. Although this method is more convenient, it is not conducive to mass production. In mechanized manufacturing, after the equipment is introduced for winding, the insulation treatment in the slots needs to be replaced by an insulating skeleton produced by a mold.

[0004] Currently, commonly used insulating frames are generally produced on a large scale by mechanization, but there are also some corresponding problems in the production process: Since the wiring terminals on the commonly used insulating frames are generally a terminal post connected to a terminal lug, during the manufacturing process, the wiring terminals are generally inserted one by one into the terminal slots of the insulating frame, and then the wiring terminals are fixedly embedded in the terminal slots of the insulating frame by mold injection molding. Even if large-scale production is carried out by equipment, auxiliary tools are used to arrange the wiring terminals one by one in the terminal slots and then perform a secondary sealing. Since the wiring terminals are loosely arranged in the terminal slots, and the terminal slots are a large grid slot before sealing, it is possible that two wiring terminals may contact each other during the sealing process, which will cause the stator produced to have a short circuit. In addition, during the sealing process, it may be affected by the flowing liquid, causing the centers of the arranged wiring terminals to be not in the same straight line, which will also make the stator produced fail to meet the technical requirements. On the one hand, this will increase the defective rate of the insulating frame, and on the other hand, arranging the wiring terminals one by one in the terminal slots will reduce work efficiency. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present invention provides an insulating frame for a stator core, which solves the problems raised by the above-mentioned background technology. The insulating frame for a stator core of the present invention mainly connects a plurality of terminal posts and terminal lugs through connectors to form an integrated structure. On the one hand, it ensures a gap between two adjacent terminal posts and terminal lugs to avoid contact between the two terminal lugs during plastic sealing, which may cause a short circuit in the stator. On the other hand, it can effectively ensure that the centers of the plurality of terminal posts are in the same straight line, thereby effectively improving the product qualification rate and enhancing production efficiency.

[0006] An insulating skeleton for a stator core comprises a skeleton body and terminal blocks, wherein the terminal blocks are partially embedded in the skeleton body. The terminal blocks comprise terminals, lugs, and connectors. A plurality of terminals are provided, one end of each terminal is connected to one end of a lug, and the other end of the lug is connected to one end of the connector. The connector connects the plurality of terminals and lugs to form an integral structure, and a breakable V-CUT folding groove is provided at the connection position between the connector and the lug.

[0007] Preferably, the connecting piece comprises a plurality of connecting pieces connected together, one end of the connecting piece is provided with a connecting piece, and the outer end of the connecting piece forms a breakable fixed connection with the wiring piece.

[0008] Preferably, the connecting piece is provided with an insertion hole.

[0009] Preferably, the V-CUT grooves are arranged on the front and back sides of the connection position between the connector and the wiring piece, and are arranged symmetrically in their directions.

[0010] Preferably, the depth of the V-CUT groove ranges from 0.05 to 0.3 mm.

[0011] Preferably, the skeleton body comprises a winding skeleton, a skeleton end plate is provided on one side of the winding skeleton extending outward, a terminal slot is provided on the skeleton end plate, and the connecting terminal is embedded in the terminal slot.

[0012] Preferably, a wiring through-hole is provided at the inner end of the terminal slot, and a terminal post slot is further provided between the terminal slot and the winding frame. The center of the terminal post slot and the center of the wiring through-hole are in the same straight line, and the terminal post slot is connected to the terminal slot.

[0013] Preferably, the frame end plates are symmetrically provided with snap-fitting protrusions on both sides.

[0014] Preferably, the winding skeleton includes a skeleton ring, a plurality of protruding wire group frames are provided on the inner side of the skeleton ring, a skeleton groove is provided between two adjacent wire group frames, and a winding post is also provided on the upper end face of the skeleton ring, and the winding post is located on the rear wall end face of the skeleton groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The stator core of the utility model uses an insulating frame with a connector to connect several terminals and lugs that need to be embedded in the frame body to form an integrated structure. In this way, during production, only one integral terminal needs to be placed in the terminal slot for plastic sealing. This eliminates the need to arrange them one by one, reducing the time for arranging the terminals and effectively improving work efficiency.

[0017] 2. The stator core of the utility model uses an insulating frame to connect several terminal posts and terminal lugs that need to be embedded in the frame body to form an integrated structure. This can effectively ensure the spacing between two adjacent terminal posts and terminal lugs, avoiding contact between the two terminal lugs during plastic sealing, thereby reducing the possibility of stator short circuits and the production of defective short-circuited stators;

[0018] 3. The stator core of the utility model uses an insulating frame to connect several terminals and terminal pieces that need to be embedded in the frame body to form an integrated structure, which can effectively ensure that the centers of several terminals are in the same straight line, effectively improving the product qualification rate;

[0019] 4. The stator core of the utility model is provided with an insulating frame. The V-CUT folding groove is provided. When the insulating frame is sealed for the second time, the connector can be easily broken off, so that the terminal and the terminal piece can be accurately fixed and embedded in the terminal slot;

[0020] 5. The stator core of the utility model is provided with an insulating frame, and the connecting piece is provided with a socket, which is convenient for using a robot to put the wiring terminal into the terminal slot as a whole, and is convenient for mechanized and large-scale production and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the insulating skeleton for the stator core of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the insulating skeleton for the stator core of the utility model before the connector is broken;

[0023] Figure 3 This is a schematic diagram of the wiring terminal structure of the insulating skeleton for the stator core of the utility model;

[0024] Figure 4 This is a side view of the wiring terminal of the insulating frame for the stator core of the utility model;

[0025] Figure 5 for Figure 4 A magnified schematic diagram of the middle part A;

[0026] Figure 6 This is a schematic diagram of the frame structure of the insulating frame for the stator core of the utility model.

[0027] In the figure: 1. Frame body; 2. Terminal block; 21. Terminal post; 22. Terminal piece; 23. Connector; 24. V-CUT folding groove; 231. Connecting piece; 232. Connecting piece; 233. Jack; 11. Winding frame; 12. Frame end plate; 13. Terminal slot; 14. Wiring through hole; 15. Terminal slot; 16. Snap-on protrusion; 111. Frame ring; 112. Wire assembly rack; 113. Frame slot; 114. Winding post. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the product of the present invention is further described in detail below with reference to the embodiments and drawings.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figure 1 、 Figure 2 and Figure 3 As shown, an insulating skeleton for a stator core includes a skeleton body 1 and a terminal 2. The terminal 2 is partially embedded in the skeleton body 1. The terminal 2 includes a terminal post 21, a terminal lug 22 and a connector 23. There are a plurality of terminal posts 21, one end of each terminal post 21 is connected to one end of a terminal lug 22, and the other end of the terminal lug 22 is connected to one end of the connector 23. The connector 23 connects the plurality of terminal posts 21 and the terminal lug 22 to form an integral structure. A breakable V-CUT folding groove 24 is provided at the connection position between the connector 23 and the terminal lug 22.

[0032] like Figure 3 、 Figure 4 and Figure 5As shown, the connecting piece 23 includes several connecting pieces 231 connected together, and a connecting piece 232 is provided at one end of the connecting piece 231. The outer end of the connecting piece 232 forms a breakable fixed connection with the terminal piece 22; a socket 233 is provided on the connecting piece 231; the V-CUT folding groove 24 is arranged on the front and back sides of the connection position between the connecting piece 23 and the terminal piece 22, and its direction is symmetrical; the depth range of the V-CUT folding groove 24 is 0.05-0.3mm.

[0033] It should be noted that: in this embodiment, the wiring terminals 2 are provided with six, and the corresponding connecting pieces 22 are also provided with six, and one end of each wiring terminal 2 is connected to one end of a corresponding connecting piece 22, so that the connecting piece 231 is also provided with six pieces, and one end of each connecting piece 231 is provided with a connecting piece 232, and the six connecting pieces 232 are respectively connected to the other ends of the six connecting pieces 22, so that the six terminals 21 are formed in an equidistant and equal-height state, and the spacing between the six connecting pieces 22 is also equal, so that the wiring terminals 2 can be placed together as a whole in the terminal slot 13 and then sealed. In this way, on the one hand, the spacing gap between two adjacent terminals 21 and the connecting piece 22 is ensured to avoid During the plastic sealing, the two terminal lugs 22 come into contact, causing a short circuit in the stator. On the other hand, it can effectively ensure that the centers of several terminal posts 21 are in the same straight line, thereby effectively improving the product qualification rate and improving production efficiency. The setting of the jack 233 is convenient for using a robot to place the terminal 2 into the terminal slot 13 as a whole, which is convenient for mechanized and large-scale production and processing. In this embodiment, the depth range of the V-CUT folding groove 24 is between 0.15-0.2mm. When the insulating frame completes the secondary plastic sealing, the setting of the V-CUT folding groove 24 can easily break off the connector 23, so that the terminal 2 and the terminal lug 22 can be accurately fixed and embedded in the terminal slot 13.

[0034] like Figure 1 、 Figure 2 and Figure 6As shown, the skeleton body 1 includes a winding skeleton 11, and a skeleton end plate 12 is extended outward on one side of the winding skeleton 11, and a terminal slot 13 is provided on the skeleton end plate 12, and the connecting terminal is embedded in the terminal slot 13; the inner end of the terminal slot 13 is provided with a wiring through-hole 14, and a terminal post slot 15 is also provided between the terminal slot 13 and the winding skeleton 11, and the center of the terminal post slot 15 is on the same line as the center of the wiring through-hole 14, and the terminal post slot 15 is connected to the terminal slot 13; the two sides of the skeleton end plate 12 are symmetrically provided with snap-fitting protrusions 16; the winding skeleton 11 includes a skeleton ring 111, and a plurality of protruding wire group frames 112 are provided on the inner side of the skeleton ring 111, and a skeleton groove 113 is provided between two adjacent wire group frames 112, and a winding post 114 is also provided on the upper end face of the skeleton ring 111, and the winding post 114 is located on the rear wall end face of the skeleton groove 113.

[0035] It should be noted that: in this embodiment, the terminal slot 13 is a large grid slot before the secondary sealing. After the terminal 2 is arranged in the terminal slot 13, the secondary sealing is performed so that the connecting piece 232 of the terminal 2 is embedded in the skeleton end plate 12; the setting of the wiring through-hole 14 facilitates the contact connection between the terminal piece 22 and other products; the terminal post slot 15 is formed after the secondary sealing, which is used for the fixed connection of the terminal post 21; the setting of the snap-fitting protrusion 16 facilitates the disassembly and assembly of the insulating skeleton and the outer stator ring; the setting of the wire group frame 112 is used for winding copper wire; the setting of the skeleton groove 113 facilitates the snap-fitting of the skeleton ring 111.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, which are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still belong to the technical solution of the present invention.

Claims

1. An insulating frame for a stator core, comprising a frame body and a terminal block, wherein the terminal block is partially embedded in the frame body, and characterized in that: The terminal includes a terminal post, a terminal lug and a connector. There are several terminal posts, one end of each terminal post is connected to one end of a terminal lug, and the other end of the terminal lug is connected to one end of the connector. The connector connects several terminal posts and terminal lugs to form an integrated structure. A breakable V-CUT groove is provided at the connection position between the connector and the terminal lug.

2. The insulating frame for the stator core according to claim 1, characterized in that: The connecting piece includes a plurality of connecting pieces connected together, one end of the connecting piece is provided with a connecting piece, and the outer end of the connecting piece forms a breakable fixed connection with the wiring piece.

3. The insulating frame for the stator core according to claim 2, characterized in that: The connecting piece is provided with an inserting hole.

4. The insulating frame for the stator core according to claim 1, characterized in that: The V-CUT folding grooves are arranged on the front and back sides of the connection position between the connector and the wiring piece, and the directions thereof are arranged symmetrically.

5. The insulating frame for the stator core according to claim 4, characterized in that: The depth of the V-CUT groove ranges from 0.05 to 0.3 mm.

6. The insulating frame for the stator core according to claim 1, characterized in that: The skeleton body comprises a winding skeleton, one side of the winding skeleton is provided with a skeleton end plate extending outwards, the skeleton end plate is provided with a terminal slot, and the connecting terminal is embedded in the terminal slot.

7. The insulating frame for the stator core according to claim 6, characterized in that: The inner end of the terminal slot is provided with a wiring through-hole, and a terminal post slot is further provided between the terminal slot and the winding frame. The center of the terminal post slot is in the same straight line as the center of the wiring through-hole, and the terminal post slot is connected to the terminal slot.

8. The insulating frame for the stator core according to claim 7, characterized in that: The two sides of the skeleton end plate are symmetrically provided with clamping protrusions.

9. The insulating frame for the stator core according to claim 6, characterized in that: The winding skeleton includes a skeleton ring, a plurality of protruding wire group frames are provided on the inner side of the skeleton ring, a skeleton groove is provided between two adjacent wire group frames, and a winding column is further provided on the upper end face of the skeleton ring, and the winding column is located on the rear wall end face of the skeleton groove.

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