Fixing part for conductive brush of motor

Abstract

The utility model relates to a fixing piece for a motor conductive brush, and belongs to the technical field of bearing protection rings. The fixing piece for the conductive brush of the motor comprises a plurality of fixing units and connecting parts for connecting two adjacent fixing units. As the plurality of fixing units are connected through the connecting parts, the conductive brush applying the fixing part is of an integrated structure, and compared with the prior art, the conductive brush is convenient to assemble subsequently, the assembly process of the conductive brush is simplified, the cost is reduced, and batch production is realized.

Description

Technical Field

[0001] The utility model relates to a fixing piece for a motor conductive brush, belonging to the technical field of bearing protection rings. Background Art

[0002] At present, during the use of motors, conductive brushes are used to protect the motors to solve the problem of electrical corrosion of the bearings of variable frequency motors. Conductive brushes can effectively control the shaft voltage and bearing current and protect the bearings.

[0003] Chinese patent application No. 201811596820.6 discloses an overlapping cluster brush conductive ring, which realizes the installation of a conductive sleeve by setting grooves for fixing the conductive sleeve on the fixing ring, the front outer cover, and the rear outer cover. Although this structure can ensure the stability of the conductive sleeve fixation, with the start of mass production, since the conductive sleeves need to be installed one by one in the slots, the production and installation procedures are relatively cumbersome and the cost is high, which is not conducive to mass production. Utility Model Content

[0004] The purpose of the utility model is to provide a fixing member for motor conductive brushes which helps to simplify the assembly process of conductive brushes, can reduce costs, and can realize mass production.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a fixing member for a motor conductive brush, comprising a plurality of fixing units and a connecting portion connecting two adjacent fixing units.

[0006] Furthermore, the connecting portion may be a bendable strip-shaped structure / sheet-shaped structure, or a linear-like strip-shaped structure / sheet-shaped structure.

[0007] Furthermore, the fixing unit only includes one fixing portion.

[0008] Furthermore, each of the fixing units includes two fixing parts that can be folded relative to each other.

[0009] Furthermore, the two fixing portions are folded relative to each other and overlap, or at least partially overlap, or are staggered in front and back.

[0010] Furthermore, each of the fixing units further includes a folding portion connecting the two fixing portions, and the two fixing portions can be folded along the folding portion.

[0011] Furthermore, the two fixing parts are symmetrically arranged.

[0012] Furthermore, at least one of the fixing parts is a covering part.

[0013] Furthermore, the covering member includes a supporting portion for placing the conductive fiber bundle and folding portions extending outwardly from the supporting portion toward both sides. The folding portions can be folded relative to the supporting portion to fix the conductive fiber bundle on the supporting portion.

[0014] Furthermore, at least one of the fixing parts is a ring.

[0015] The beneficial effect of the present invention is that since several fixing units are connected by a connecting part, the conductive brush of the fixing part applied in the present application is an integrated structure, which will facilitate the subsequent assembly of the conductive brush compared with the prior art, help to simplify the assembly process of the conductive brush, reduce costs, and realize mass production.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a fixing member according to an embodiment of the present invention;

[0018] Figure 2 For use Figure 1 A schematic structural diagram of the conductive ring of the fixing member shown;

[0019] Figure 3 for Figure 2 Partial exploded view of

[0020] Figure 4 This is a schematic structural diagram of a conductive brush according to another embodiment of the present invention;

[0021] Figure 5 For application in Figure 4 The state diagram of the conductive brush fixing member shown is unfolded;

[0022] Figure 6 This is a partial structural diagram of another conductive brush of the present invention. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some 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 any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly 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, electrical connections; direct connections, 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 this utility model based on the specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] See Figures 1 to 3 The conductive brush 10 for a motor of the present application is installed in a fixed cover 20 to form a conductive ring 100. The conductive brush 10 includes a fixing member 1 and a conductive fiber bundle 2 mounted on the fixing member 1. In the present application, the conductive fiber bundle 2 can be obtained by cutting existing materials and will not be described in detail here. Compared with the prior art, the fixing member 1 is an integrated product. The fixing member 1 includes a plurality of fixing units 11 and a connecting portion 12 connecting two adjacent fixing units 11.

[0028] The fixing members 1 are integrated by connecting the plurality of fixing units 11 through the connecting portion 12 , which facilitates the subsequent assembly of the conductive brush 10 , helps to simplify the assembly process of the conductive brush 10 , reduces costs, and realizes mass production.

[0029] When in use, several fixing units 11 are arranged around to form an annular structure, that is, when in use, the fixing member 1 forms an annular structure to match the fixing cover 20. The fixing cover 20 is formed with an annular groove 201 that matches the fixing member 1 of the annular structure. The number of the annular groove 201 can be one, such as Figure 2 As shown, there can also be two or more.

[0030] The connecting portion 12 has a certain elasticity and can be bent. It is usually made of the same material as the fixing member 1, such as copper or other metal materials. During design, the diameter of the conductive brush 10 can be designed to be slightly larger than the inner diameter of the annular groove 201. In this way, when it is assembled into the annular groove 201 of the fixing cover 20, the connecting portion 12 can be appropriately bent to utilize the elasticity of the bent connecting portion 12 so that the conductive brush 10 has radial expansion, so that the conductive brush 10 can be radially supported on the side wall 204 of the annular groove 201, thereby appropriately reducing the components used to fix the conductive brush 10 in the fixing cover 20 to improve assembly efficiency. In the prior art, this component is a fastener (rivet, etc.), specifically, a fastener is provided on the side wall to lock the conductive brush in the fixing cover.

[0031] To improve the applicability of the conductive brush 10 and enable it to adapt to fixed covers 20 of different specifications, in an optional embodiment, the connecting portion 12 is a bendable strip-like structure or sheet-like structure. Thus, the bending depth and number of the connecting portion 12 can be adjusted according to the inner diameter of the fixed cover 20 of different specifications to control the diameter of the conductive brush 10 and adapt it to fixed covers 20 of different specifications. Furthermore, by providing the connecting portion 12 with a bendable structure, its elasticity after bending can be utilized to further increase the radial holding force of the conductive brush 10 against the sidewall of the annular groove 201.

[0032] In addition, the distance between two adjacent fixing units 11 can be adjusted by adjusting the bending depth and number of bends of the connecting portion 12 , thereby adjusting the number of conductive brushes 10 in the fixing cover of the same specification according to design requirements.

[0033] Of course, in other embodiments, the connecting portion 12 may also be a linear strip structure or sheet structure.

[0034] In this embodiment, each fixing unit 11 has only one fixing portion 11, and two adjacent fixing portions 11 are connected by a connecting portion 12. As in the prior art, the conductive fiber bundle 2 is fixed linearly within the fixing portion 11. The fixing portion 11 is a collar. Of course, in other embodiments, the fixing portion 11 can also be a wrapping member having a closed state / folded state and an unfolded state. When the wrapping member changes from the unfolded state to the closed state / folded state, the wrapping member secures the conductive fiber bundle.

[0035] In this embodiment, the conductive fiber bundle 2 can be directly fixed by the fixing unit 11. In addition, an adhesive can be added between the fixing unit 11 and the conductive fiber bundle 2 to improve the firmness of the fixation. In addition, the conductive fiber bundle 2 can also be provided with an adhesive to facilitate assembly after the conductive fibers are formed into a bundle.

[0036] See Figure 4and Figure 5 In another embodiment, each fixing unit 11 includes a first fixing portion 111 and a second fixing portion 112 that can be folded relative to each other. The same conductive fiber bundle 2 is installed in the first fixing portion 111 and the second fixing portion 112 at the same time. Specifically, two sections of the conductive fiber bundle 2 are respectively located in the first fixing portion 111 and the second fixing portion 112, and the two ends of the conductive fiber bundle 2 pass through the first fixing portion 111 and the second fixing portion 112. Then, the first fixing portion 111 and the second fixing portion 112 are folded, and the conductive fiber bundle 2 is folded.

[0037] In other embodiments, the conductive fiber bundle 2 can be independently installed in the first fixing portion 111 and the second fixing portion 112, such as Figure 6 As shown, specifically, two conductive fiber bundles 2 are respectively fixed on the first fixing portion 111 and the second fixing portion 112 , and the two conductive fiber bundles 2 are overlapped.

[0038] In this embodiment, since the conductive fiber bundle 2 is folded, individual conductive fiber bundles 2 are not easily pulled out, and the conductive fiber bundle 2 is more firmly fixed.

[0039] Similarly, the conductive fiber bundle 2 can be directly fixed by the first fixing portion 111 and the second fixing portion 112. In addition, an adhesive can be added between the first fixing portion 111 and the second fixing portion 112 and the conductive fiber bundle 2 to improve the securement of the fixing. In addition, to further prevent individual conductive fibers from being pulled out of the bundle, an adhesive can also be provided within the conductive fiber bundle, thereby facilitating assembly after the conductive fibers are formed into a bundle.

[0040] The first fixing portion 111 and the second fixing portion 112 can be overlapped, or at least partially overlapped, or staggered front to back after being folded relative to each other. However, whether the first fixing portion 111 and the second fixing portion 112 overlap or not will not affect the arrangement of the conductive fiber bundle 2 to form at least two layers.

[0041] The first fixing portion 111 and the second fixing portion 112 can be symmetrically or asymmetrically arranged. In this embodiment, the first fixing portion 111 and the second fixing portion 112 are both covering parts.

[0042] Specifically, each covering member 111, 112 includes a supporting portion 113 for accommodating the conductive fiber bundle 2 and folded portions 114 extending outwardly from the supporting portion 113. The folded portions 114 can be folded relative to the supporting portion 113 to secure the conductive fiber bundle (not shown) on the supporting portion 113. The folded portions 114 on both sides of the supporting portion 113 are staggered.

[0043] Each fixing unit 11 also includes a folding portion 115 connecting the first fixing portion 111 and the second fixing portion 112, and the first fixing portion 111 and the second fixing portion 112 are folded along the folding portion 115. The first fixing portion 111, the folding portion 115 and the second fixing portion 112 are arranged along the longitudinal direction of the fixing unit 11. The folding portion 115 is located between the supporting portion 113 of the first fixing portion 111 and the second fixing portion 112, so as to facilitate the folding of the folding portion 114. The folding portion 115 is a sheet-like structure or a strip-like structure for easy bending. In this embodiment, the connecting portion 12 is connected to the folding portions 115 of two adjacent fixing units 11 to facilitate the stamping and forming of the fixing parts. In other embodiments, the connecting portion 12 can also be set at other positions, which can serve to connect the two adjacent fixing units 11, such as the two ends of the connecting portion are respectively connected to the first fixing portions of the two adjacent fixing units.

[0044] It should be noted that, in this embodiment, the covering member is finally formed into a folding member, which has an unfolded state (see Figure 5 shown) and folded state (see Figure 4 As shown). However, in other embodiments, the covering member may also have other shapes, such as the covering member ultimately forming a columnar structure. Specifically, in its expanded state, it may be a sheet-like body that is bendable. When the ends of the sheet are closed, it changes from the expanded state to the wrapped state. In the wrapped state, it clamps the conductive fiber bundle located therein.

[0045] In other embodiments, the first fixing portion 111 and the second fixing portion 112 may also be both rings, and the structures of the first fixing portion 111 and the second fixing portion 112 may be as follows: Figure 1 The structure of the single fixing portion is shown in FIG. 3 . Of course, in other embodiments, one of the first fixing portion 111 and the second fixing portion 112 can be a ring and the other can be a wrapping member.

[0046] When the first fixing portion and the second fixing portion are both collars, the first fixing portion and the second fixing portion can be two independent collars connected by a folding portion, and the first fixing portion, the folding portion and the second fixing portion are arranged along the axis of the first fixing portion. The connecting portion connects two adjacent folding portions.

[0047] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A fixing member for a motor conductive brush, characterized in that: It comprises a plurality of fixing units and a connecting portion connecting two adjacent fixing units; the connecting portion is a bendable strip structure / sheet structure, or a linear strip structure / sheet structure.

2. The fixing member for a motor conductive brush according to claim 1, characterized in that: The fixing unit includes only one fixing portion.

3. The fixing member for a motor conductive brush according to claim 1, characterized in that: Each of the fixing units includes two fixing parts that can be folded relative to each other.

4. The fixing member for a motor conductive brush according to claim 3, characterized in that: The two fixing portions are folded relative to each other and overlap, or at least partially overlap, or are staggered in front and back arrangement.

5. The fixing member for the motor conductive brush according to claim 3, characterized in that: Each of the fixing units further includes a folding portion connecting the two fixing portions, and the two fixing portions can be folded along the folding portion.

6. The fixing member for the motor conductive brush according to claim 5, characterized in that: The two fixing parts are symmetrically arranged.

7. The fixing member for a motor conductive brush according to claim 2 or 3, characterized in that: At least one of the fixing parts is a covering member.

8. The fixing member for the motor conductive brush according to claim 7, characterized in that: The covering member includes a supporting portion for placing the conductive fiber bundle and folding portions extending outwardly from the supporting portion toward both sides. The folding portions can be folded relative to the supporting portion to fix the conductive fiber bundle on the supporting portion.

9. The fixing member for a motor conductive brush according to claim 2 or 3, characterized in that: At least one of the fixing parts is a collar.

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