Rectifier bridge with injection molding fixed connecting sheet structure

Abstract

The utility model discloses a rectifier bridge with an injection molding fixed connecting sheet structure, which comprises a connecting sheet body, the connecting sheet body is fixedly connected with a shell, a carbon brush holder assembly is arranged in the shell, the carbon brush holder assembly comprises a bottom plate, the bottom plate is sleeved in the shell, one end of the bottom plate is fixedly connected with a baffle, and the other end of the bottom plate is fixedly connected with a connecting sheet. Two first bent plates are fixedly connected to the other end of the bottom plate, second through grooves are formed in the first bent plates, and second elastic pieces are fixedly connected into the second through grooves; according to the utility model, the connecting sheet body is used as the rectifier bridge substrate, the housing and the carbon brush holder assembly are assembled in a clamping manner, the assembly process is simplified, and the connecting sheet body and the housing are integrally designed, so that the carbon brush holder assembly has better stability; according to the carbon brush holder assembly, the heat dissipation area of the electric brush is increased through the coil spring, the temperature of the carbon brush is prevented from being too high, the carbon brush holder assembly adopts the semi-wrapping design, materials are saved, the electric brush is positioned through the first elastic piece and the third elastic piece, and therefore the stability of the electric brush is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge with an injection-molded fixed connecting piece structure. Background Art

[0002] A rectifier bridge is a device used to convert alternating current (AC) generated by a generator into direct current (DC). Its base plate is shaped like an open circle, and the opening of the base plate is generally connected to a fixed carbon brush holder via a connecting piece. This type of rectifier bridge has the following drawbacks: First, the rectifier bridge and carbon brush holder are designed separately, which complicates assembly. Furthermore, the connecting piece is affected by vibration during generator operation and can easily become loose, affecting the stability of the carbon brush holder. Second, both the rectifier bridge and carbon brushes generate a lot of heat during operation, and existing carbon brush holders have poor heat dissipation, which causes the carbon brushes to heat up, accelerates wear and aging, and seriously shortens their service life. Existing carbon brush holders use an encapsulated design, which consumes a lot of materials. Furthermore, the brush holder and brushes cannot be completely fitted together, which can easily cause the brushes to shake. Utility Model Content

[0003] The purpose of the utility model is to provide a rectifier bridge with an injection-molded fixed connecting piece structure to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a rectifier bridge with an injection-molded fixed connecting plate structure, comprising a connecting plate body, a shell fixedly connected to the connecting plate body, a carbon brush holder assembly installed in the shell, the carbon brush holder assembly comprising a base plate, and the base plate is sleeved in the shell, one end of the base plate is fixedly connected to a baffle, and the other end of the base plate is fixedly connected to two first bent plates, a second through groove is provided on the first bent plate, a second spring piece is fixedly connected in the second through groove, a card block is fixedly connected to the second spring piece, a card slot is provided at a position corresponding to the card block on the shell, and the card block is carded in the card slot.

[0005] Preferably, a connecting plate is fixedly connected to the baffle, and a mounting plate is fixedly connected to the connecting plate.

[0006] Preferably, the two first bending plates are fixedly connected to a third elastic piece, the top ends of the two first bending plates are fixedly connected to a second bending plate, and the second bending plate is fixedly connected to a first elastic piece.

[0007] Preferably, a sliding groove is provided on the upper surface of the shell, a connecting block is slidably connected in the sliding groove, a heat conducting block is fixedly connected to the lower surface of the connecting block, and the heat conducting block is slidably connected in the shell, a coil spring is fixedly connected to the connecting block, the other end of the coil spring is fixedly connected to the fixed block, and the fixed block is fixedly connected to the upper surface of the shell.

[0008] Preferably, a third through groove is provided on the heat conducting block.

[0009] Preferably, one end of the slide groove is conductively connected to a first through groove.

[0010] The utility model provides a rectifier bridge with an injection-molded fixed connecting piece structure, which has the following advantages: the utility model adopts the connecting piece body as the rectifier bridge substrate, and the shell and the carbon brush holder assembly are assembled in a snap-on manner, which simplifies the assembly process, and the connecting piece body and the shell are designed as an integrated whole, so that the carbon brush holder assembly has better stability; the carbon brush holder assembly uses a coil spring to increase the heat dissipation area of the brush to avoid excessive temperature of the carbon brush, the carbon brush holder assembly adopts a semi-enclosed design, which saves material, and the brush is positioned by the first spring piece and the third spring piece, thereby improving the stability of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is a schematic diagram of the overall top view of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the shell of the present utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional cutaway structure of the shell of the present utility model;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the heat conducting block of the present utility model.

[0016] In the figure: 1. Connecting piece body; 11. Shell; 12. Card slot; 13. First through slot; 14. Slide slot; 15. Fixing block; 2. Brush holder assembly; 21. Bottom plate; 22. Baffle; 23. Connecting plate; 24. Mounting plate; 25. First bending plate; 26. Second bending plate; 27. First spring piece; 28. Second through slot; 29. Second spring piece; 210. Card block; 211. Third spring piece; 212. Heat conducting block; 213. Third through slot; 214. Connecting block; 215. Coil spring. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please see the attached Figure 1 -Attached Figure 4 The utility model provides an embodiment: a rectifier bridge with an injection-molded fixed connecting piece structure, including a connecting piece body 1, a shell 11 fixedly connected to the connecting piece body 1, a carbon brush holder assembly 2 installed in the shell 11, the carbon brush holder assembly 2 includes a bottom plate 21, and the bottom plate 21 is sleeved in the shell 11, one end of the bottom plate 21 is fixedly connected to a baffle 22, and the other end of the bottom plate 21 is fixedly connected to two first bent plates 25, a second through slot 28 is opened on the first bent plate 25, a second spring piece 29 is fixedly connected in the second through slot 28, and a second spring piece 29 is fixedly connected to the second spring piece 29. The card block 210 is provided with a card slot 12 at a position corresponding to the card block 210 on the housing 11, and the card block 210 is engaged in the card slot 12. The card block 210 cooperates with the card slot 12 to realize the quick assembly of the carbon brush holder assembly 2 and the housing 11. The baffle 22 is used to limit the bottom plate 21, and the second spring piece 29 is used to provide a reset elastic force for the card block 210; a connecting plate 23 is fixedly connected to the baffle 22, and a mounting plate 24 is fixedly connected to the connecting plate 23. The connecting plate 23 is used to connect the mounting plate 24 and the baffle 22, and the mounting plate 24 is used to install the brush wire; the two first bending plates 25 The top of each of the two first bending plates 25 is fixedly connected to a second bending plate 26, and the second bending plate 26 is fixedly connected to a first elastic piece 27. The third elastic piece 211 and the first elastic piece 27 are used to position the brush; a slide groove 14 is provided on the upper surface of the housing 11, and a connecting block 214 is slidably connected in the slide groove 14. The lower surface of the connecting block 214 is fixedly connected to a heat conducting block 212, and the heat conducting block 212 is slidably connected in the housing 11. A coil spring 215 is fixedly connected to the connecting block 214, and the other end of the coil spring 215 is fixedly connected to The fixing block 15 is fixedly connected to the upper surface of the shell 11, the slide groove 14 is used to accommodate the connecting block 214, the heat-conducting block 212 is used to push the brush, and is also used to transfer the heat of the brush to the coil spring 215 through the connecting block 214, and the coil spring 215 is used to achieve large-area heat dissipation. At the same time, the coil spring 215 is also used to provide a reset elastic force for the heat-conducting block 212; a third through groove 213 is opened on the heat-conducting block 212, and the third through groove 213 is used to accommodate the brush wire; one end of the slide groove 14 is conductively connected to the first through groove 13, and the first through groove 13 is used to facilitate the installation of the heat-conducting block 212.

[0019] Working principle: When assembling and using the utility model, the brush is installed in the carbon brush holder assembly 2, and it is positioned by the first spring piece 27 and the third spring piece 211. Then the carbon brush holder assembly 2 is installed in the housing 11, so that the bottom plate 21 is inserted into the housing 11 until the baffle 22 is blocked by the housing 11. At this time, the card block 210 is snapped into the card slot 12 under the elastic action of the second spring piece 29, so as to realize the installation between the carbon brush holder assembly 2 and the connecting piece body 1. Finally, the heat conducting block 212 equipped with the coil spring 215 is inserted into the first through slot 13, and the other end of the coil spring 215 is installed on the fixed block 15. The elastic action of the coil spring 215 is used to provide elastic force for the brush, and the heat conducting block 212 transfers the heat of the brush to the fixed block 15. The heat is transferred to the coil spring 215 through the connecting block 214, and the coil spring 215 is used to achieve large-area heat dissipation. Among them, the slide groove 14 is used to accommodate the connecting block 214, the connecting plate 23 is used to connect the mounting plate 24 and the baffle 22, the mounting plate 24 is used to install the brush wire, the third through groove 213 is used to accommodate the brush wire, and the second through groove 28 is used to accommodate the second elastic piece 29. The connecting piece body 1 and the shell 11 are an integrated structure and are injection molded. The connecting piece body 1 is the substrate of the rectifier bridge, and the bottom plate 21, baffle 22, connecting plate 23, mounting plate 24, first bending plate 25, second bending plate 26, first elastic piece 27, second elastic piece 29, block 210 and third elastic piece 211 are an integrated structure.

[0020] 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.

[0021] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A rectifier bridge with an injection-molded fixed connecting piece structure, comprising a connecting piece body (1), characterized in that: The connecting piece body (1) is fixedly connected to a housing (11), a carbon brush holder assembly (2) is installed in the housing (11), the carbon brush holder assembly (2) comprises a base plate (21), and the base plate (21) is sleeved in the housing (11), one end of the base plate (21) is fixedly connected to a baffle (22), the other end of the base plate (21) is fixedly connected to two first bending plates (25), a second through slot (28) is provided on the first bending plate (25), a second spring piece (29) is fixedly connected in the second through slot (28), a clamping block (210) is fixedly connected to the second spring piece (29), a clamping slot (12) is provided at a position corresponding to the clamping block (210) on the housing (11), and the clamping block (210) is clamped in the clamping slot (12).

2. The rectifier bridge with an injection-molded fixed connecting piece structure according to claim 1, characterized in that: A connecting plate (23) is fixedly connected to the baffle (22), and a mounting plate (24) is fixedly connected to the connecting plate (23).

3. The rectifier bridge with an injection-molded fixed connecting piece structure according to claim 1, characterized in that: The two first bending plates (25) are both fixedly connected to a third spring piece (211), the top ends of the two first bending plates (25) are both fixedly connected to a second bending plate (26), and the second bending plate (26) is fixedly connected to a first spring piece (27).

4. The rectifier bridge with an injection-molded fixed connecting piece structure according to claim 1, characterized in that: The upper surface of the housing (11) is provided with a sliding groove (14), a connecting block (214) is slidably connected in the sliding groove (14), a heat conducting block (212) is fixedly connected to the lower surface of the connecting block (214), and the heat conducting block (212) is slidably connected in the housing (11), a coil spring (215) is fixedly connected to the connecting block (214), the other end of the coil spring (215) is fixedly connected to the fixed block (15), and the fixed block (15) is fixedly connected to the upper surface of the housing (11).

5. The rectifier bridge with an injection-molded fixed connecting piece structure according to claim 4, characterized in that: A third through slot (213) is provided on the heat conducting block (212).

6. The rectifier bridge with an injection-molded fixed connecting piece structure according to claim 4, characterized in that: One end of the sliding groove (14) is conductively connected to the first through groove (13).

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