CN219181291U - Motor middle plate - Google Patents

Abstract

The utility model provides a middle plate of a motor, which includes a base plate and a mounting plate fixed on the base plate, a first electric brush and a second electric brush are installed on the mounting plate; Formed card slot structure, the card slot structure is provided with a first card slot and a second card slot parallel to the first card slot; the mounting plate is provided with a first arc-shaped slot and a second arc-shaped slot Shaped groove, the first arc-shaped groove communicates with the first card slot to form a first wire-drawing slot, and the second arc-shaped slot communicates with the second card slot to form a second wire-drawing slot; the first card The wire groove and the second wire groove are adapted to the automatic crimping tool to press the first power cord into the first wire groove, and press the second power wire into the second wire groove; improved The slot structure provided on the mounting plate of the existing motor mid-board restricts the parallelism of the two power lines, and after the two power lines are pressed in, they will appear in a crossed state, resulting in unqualified product assembly.

Description

a motor plate

technical field

The utility model relates to the field of micro motor parts, in particular to a motor middle plate.

Background technique

During the assembly process of the motor end cover, it is necessary to insert the brushes on the middle plate, and then lead the power cord into the brush hole for welding and fixing. Specifically, as shown in Figure 1 and Figure 2, the existing technology The middle plate structure includes a base plate 1 and a mounting plate 2 installed on the base plate 1. The mounting plate 2 is provided with a first arc-shaped groove 6 and a second arc-shaped groove 7 for clamping the power cord, and is installed on the base plate. There is a card slot structure 5 for limiting the position of the power cord. The cross-sectional shape of the card slot structure 5 is a "concave" structure and an inwardly protruding limit part is provided at the opening position, which is connected to the two brushes respectively. The power line is not allowed to cross to ensure the stability of the brush conduction.

In order to improve the crimping efficiency, an automatic crimping device is introduced to press the two power cords into the first arc-shaped groove, the second arc-shaped groove and the card slot, so that the two power cords can be automatically pressed in and positioned. The specific pressing The insertion device presses in after preliminary positioning of the power cords adapted to the first arc-shaped slot and the second arc-shaped slot, as shown in Figure 1. , but because the inside of the entire card slot is "concave", the two power cords cannot be parallel-restricted, and the two power cords after being pressed will appear in a cross state, resulting in unqualified product assembly.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a motor middle board, which solves the problem that the slot structure set on the mounting plate in the existing motor middle board restricts two power lines in parallel, After the first power cord is pressed in, it will show a cross state, resulting in the problem of unqualified product assembly.

In order to achieve the above object, the utility model adopts the following technical solutions:

A motor middle plate, including a base plate and a mounting plate fixed on the base plate, on which a first brush and a second brush are installed on the mounting plate;

The mounting plate is provided with a card slot structure integrally formed with it, and the card slot structure is provided with a first card slot and a second card slot arranged in parallel with the first card slot;

The mounting plate is provided with a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove communicates with the first clamping groove to form a first wire-holding groove, and the second arc-shaped groove and the The second clamping slot communicates to form a second clamping slot;

The first wire clamping slot and the second clamping wire slot are suitable for automatic crimping tooling to press the first power cord into the first wire clamping slot, and press the second power cord into the second clamping wire in the slot.

Preferably, the opening edges of the first card slot and the second card slot are provided with inwardly protruding undercut structures.

Preferably, the bottom of the mounting plate is provided with a plurality of boss structures protruding downward, the mounting plate and the bottom plate are integrally injection-molded, and the boss structures are inserted into the bottom plate.

Preferably, the mounting plate is made of plastic, and the bottom plate is made of metal.

Preferably, the first brush includes a first conductive connection part, the first conductive connection part is embedded on the mounting board, and the first conductive connection part extends into the first arc-shaped groove A first connecting hole for connecting the first power line is opened on the part.

Preferably, the second brush includes a second conductive connection part, the second conductive connection part is embedded on the mounting board, and the second conductive connection part extends into the second arc-shaped groove A second connection hole for connecting the second power line is opened on the part.

Preferably, the card slot structure is provided with a first step structure on one side of the first card slot, and a second step structure on one side of the second card slot.

Preferably, the automatic wire crimping tool includes a first pressing device corresponding to the first wire holding slot and a second pressing device corresponding to the second wire holding slot;

Both the first pressing-in device and the second pressing-in device include a first positioning block and a second positioning block, and the first positioning block and the second positioning block are enclosed to form a matching line for the first clamping line Groove, the laying groove corresponding to the second clamping groove;

The second positioning block is provided with a chute that communicates with the wire laying trough, and a push block is slidably installed in the chute, and a pressing block with the same shape as the wire laying trough is provided on the push block .

Compared with the prior art, the utility model has the following beneficial effects:

The first card slot and the second card slot arranged in parallel are arranged on the card slot structure, and the first card slot communicates with the first arc-shaped slot to form the first cable-drawing slot, and the second card slot and the second arc-shaped slot connected to form the second wire clamping slot; then the first power cord is pressed into the first wire clamping slot by the automatic crimping tool, and the second power cord is pressed into the second wire clamping slot, thereby realizing the connection between the first power cord and the second wire clamping slot. The part of the power cord that is pressed into the first card slot and the second card slot is parallel, that is, the parallel separation limit is realized, and it can ensure that the first power cord and the second power cord are in the card slot after each pressing. The line segments in the structure are parallel, and there will be no crossing, which improves the pass rate of the product after being crimped by the automatic crimping tool.

Description of drawings

Fig. 1 is a top view structural schematic diagram of a motor middle plate in the prior art;

Fig. 2 is a schematic diagram of the front view of the motor middle plate in the prior art;

Fig. 3 is a top view structural schematic diagram of the middle plate of the motor according to the embodiment of the present invention;

Fig. 4 is a schematic diagram of the front structure of the middle plate of the motor according to the embodiment of the present invention;

Fig. 5 is a schematic diagram of the bottom-view axis side structure of the middle plate of the motor according to the embodiment of the present invention;

Fig. 6 is a schematic structural view of the automatic crimping tooling of the utility model embodiment;

Fig. 7 is a schematic structural view of the automatic crimping tool for laying power cords according to the embodiment of the present invention;

In the figure,

Bottom plate 1, mounting plate 2, first brush 3, second brush 4, slot structure 5, first slot 51, second slot 52, first arc slot 6, second arc slot 7, The first wire holding slot 8, the second wire holding slot 9, the undercut structure 10, the boss structure 11, the first conductive connection part 12, the second conductive connection part 13, the first connection hole 14, the second connection hole 15, The first step structure 16, the second step mechanism 17, the automatic crimping tool 18, the first positioning block 181, the second positioning block 182, the laying groove 183, the chute 184, the pushing block 185, and the pressing block 186.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the utility model and implement it, but the examples given are not intended to limit the utility model.

As shown in Fig. 3-Fig. 5, in the embodiment of the present utility model, a motor middle plate is proposed, which includes a bottom plate 1 and a mounting plate 2 fixed on the bottom plate 1. The plurality of boss structures 11 are used to position the bottom plate 1, so that the boss structures 11 can extend into the bottom plate 1 during the integral injection molding process, so that the mounting plate 2 and the bottom plate 1 form an integrated structure, that is, the bottom plate 1 Put it into the injection molding machine to realize the structure of overmolding, so as to improve the stability of the middle plate structure of the whole motor and avoid other installation and connection methods. Wherein, the material of the mounting plate 2 is plastic, and the material of the bottom plate 1 is metal, which further ensures the stability of the overall structure.

At the same time, the first brush 3 and the second brush 4 are installed on the mounting plate 2, the structure is the same as that in the prior art, and the specific functions are also the same. This embodiment is to connect the first brush 3 The crimping arrangement structure of the first power cord and the second power cord connected to the second brush 4 is improved, so that the automatic crimping tool 18 can press the first power cord and the second power cord to ensure the outlet. The ends are arranged in parallel to avoid crossover.

Specifically, the mounting plate 2 is provided with a card slot structure 5 integrally formed with it, and the card slot structure 5 is provided with a first card slot 51 and a second card slot 52 arranged parallel to the first card slot 51 At the same time, a first arc-shaped groove 6 and a second arc-shaped groove 7 are provided on the mounting plate 2, and the first arc-shaped groove 6 communicates with the first clamping groove 51 to form a first wire clamping groove 8, The second arc-shaped slot 7 communicates with the second clamping slot 52 to form a second clamping slot 9, and the first clamping slot 8 and the second clamping slot 9 respectively correspond to one side of the brush, and are independently arranged. The first wire clamping groove 8 and the second wire clamping groove 9 are adapted to the automatic wire crimping tool 18 to press the first power cord into the first wire clamping groove 8, and press the second power cord into the first wire clamping groove 8. In the second clamping groove 9, under the restriction and isolation of the parallel structure of the first clamping groove 51 and the second clamping groove 52, after the clamping groove structure 5 that the first power cord and the second power cord are pressed into, the terminal ends Parts are separated in the first card slot 51 and the second card slot 52 to form a parallel arrangement, so that while adapting to the automatic crimping tool 18 for fast crimping, it can also ensure that the end parts go out in parallel, avoiding The occurrence of crossover can improve the pass rate of products after crimping.

In order to prevent the first power cord from coming out of the first card slot 51 and prevent the second power cord from coming out of the second card slot 52, there are inwardly facing openings at the opening edges of the first card slot 51 and the second card slot 52. Raised undercut structure 10 .

Specifically, the first brush 3 includes a first conductive connection part 12, the first conductive connection part 12 is embedded on the mounting board 2, and the first conductive connection part 12 extends into the first arc There is a first connection hole 14 for connecting the first power cord on the position in the shaped groove 6, and one end of the first power cord pressed into the first wire clamping groove 8 is located at the position of the first conductive connection part 12. The first connection hole 14 is connected to the terminal; similarly, the second brush 4 includes a second conductive connection part 13, and the second conductive connection part 13 is embedded on the mounting board 2, and the second A second connection hole 15 for connecting the second power line is provided on the part where the conductive connection part 13 extends into the second arc-shaped groove 7, so that the end of the second power line is connected to the second connection hole 15, Thereby conduct conduction to the first brush 3 respectively through the first power line, allow the second power line to conduct conduction to the second brush 4, ensure the conduction isolation between the first brush 3 and the second brush 4, and avoid conduction Condition.

In order to adapt to the positioning of the automatic crimping tool 18, the slot structure 5 is provided with a first step structure 16 on the side of the first slot 51 and a second step on the side of the second slot 52. structure, so as to realize the initial positioning of the tooling after it is moved in place, and ensure that the first power cord is pressed into the first slot 51, and the second power cord is pressed into the second slot 52.

The automatic crimping tool 18 that improves the pressing of the first power line and the second power line is specifically installed on the crimping equipment when in use, and is driven by the cylinder as power; specifically, the automatic crimping tool 18 includes corresponding first card The first press-in device of the wire slot 8 and the second press-in device corresponding to the second wire slot 9, the specific difference between the first wire slot 8 and the second wire slot 9 lies in the first arc-shaped slot 6 and the second The radian of the arc-shaped groove 7 is unclear, thus, the overall structure of the first press-in device and the second press-in device can be made the same, specifically, as shown in Figure 6 and Figure 7, the first press-in device Both the inserting device and the second pressing-in device include a first positioning block 181 and a second positioning block 182, and the first positioning block 181 and the second positioning block 182 are enclosed to form a match with the first wire clamping groove 8. For the wire laying groove 183 corresponding to the second wire clamping groove 9, the radian of the wire laying groove 183 can be adaptively changed according to different radians, so as to perform positioning through the wire laying groove 183 before pressing in; at the same time, the The second positioning block 182 is provided with a chute 184 communicating with the wire laying trough 183, and a push block 185 is slidably installed in the chute 184, and the push block 185 is provided with a connection with the wire laying trough 183. The press-in block 186 with the same shape, specifically the press-in block 186 can be connected to the cylinder in the wire crimping device, and after the press-in block 186 is pressed down, the first power cord at the corresponding position can be pushed into the first wire holding slot 8, the second power cord at the corresponding position is pressed into the second clamping groove 9, thereby completing the automatic crimping process, and can ensure that the first power cord and the second power cord at the position of the clamping groove structure 5 remain parallel interval setting.

In the description of the utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the Means that a device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In this utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "inner" and "outer" are based on The orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used, is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the device or element referred to Must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the scope of the claims of the utility model.

Although the description of the utility model is performed 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 contents. Accordingly, all such alternatives, modifications and changes are intended to be included within the spirit and scope of the appended claims.

Claims (8)

1. A middle plate of a motor, comprising a base plate (1) and a mounting plate (2) fixed on the base plate (1), the first brush (3) and the second brush (3) are installed on the mounting plate (2). brushes (4); It is characterized by: The mounting plate (2) is provided with a card slot structure (5) integrally formed with it, and the card slot structure (5) is provided with a first card slot (51) and is connected with the first card slot (51). The second card slot (52) arranged in parallel; The mounting plate (2) is provided with a first arc-shaped groove (6) and a second arc-shaped groove (7), and the first arc-shaped groove (6) communicates with the first card groove (51) to form A first wire holding slot (8), the second arc-shaped slot (7) communicates with the second holding slot (52) to form a second wire holding slot (9); The first wire clamping groove (8) and the second wire clamping groove (9) are adapted to the automatic crimping tooling (18) to press the first power cord into the first wire clamping groove (8), and the The second power cord is pressed into the second wire clamping groove (9). 2. A motor middle plate according to claim 1, characterized in that: the opening edges of the first slot (51) and the second slot (52) are provided with inwardly protruding Undercut structure (10). 3. A motor middle plate according to claim 1 or 2, characterized in that: the bottom of the mounting plate (2) is provided with a plurality of boss structures (11) protruding downwards, and the mounting plate ( 2) Injection molded integrally with the bottom plate (1), and the boss structure (11) is inserted into the bottom plate (1). 4. The middle plate of a motor according to claim 3, characterized in that: the mounting plate (2) is made of plastic, and the bottom plate (1) is made of metal. 5. A motor middle plate according to claim 4, characterized in that: the first brush (3) includes a first conductive connection part (12), and the first conductive connection part (12) is embedded On the mounting plate (2), where the first conductive connecting portion (12) protrudes into the first arc-shaped groove (6), a first connection hole for connecting the first power line is opened (14). 6. A motor middle plate according to claim 5, characterized in that: the second brush (4) includes a second conductive connection part (13), and the second conductive connection part (13) is embedded On the mounting plate (2), where the second conductive connecting portion (13) protrudes into the second arc-shaped groove (7), a second connection hole for connecting the second power line is opened (15). 7. The middle plate of a motor according to claim 6, characterized in that: the slot structure (5) is provided with a first stepped structure (16) on one side of the first slot (51) , and a second stepped structure located on one side of the second card slot (52). 8. The middle plate of a motor according to claim 7, characterized in that: the automatic crimping tool (18) includes a first press-in device corresponding to the first clamping groove (8) and a second clamping device respectively. The second press-in device of trunking (9); Both the first pressing device and the second pressing device include a first positioning block (181) and a second positioning block (182), and the first positioning block (181) and the second positioning block ( 182) Enclosing and forming a wire laying groove (183) corresponding to the first wire holding groove (8) and the second wire holding groove (9); The second positioning block (182) is provided with a chute (184) communicating with the laying trough (183), and a push block (185) is slidably installed in the chute (184), and the push block ( 185) is provided with a pressing block (186) having the same shape as the wiring groove (183).

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