Brush box structure of windscreen wiper motor

Abstract

The utility model discloses a brush box structure of a windscreen wiper motor, which comprises a box body, a connecting groove is arranged on the side surface of the box body close to the front surface, a support leg is arranged at the bottom of the side surface of the box body close to the central position, the front end and the rear end of the support leg are respectively provided with a baffle plate, and the box body is formed by splicing a left block and a right block. A splicing table is arranged at the top splicing position of the box body, a splicing buckle is arranged in the center of the splicing table, a connecting rod is transversely arranged in the box body and close to the tail, and the two ends of the connecting rod are sleeved with threaded sleeves; according to the brush box structure of the windscreen wiper motor, the two ends of the box body are spliced, the tail portion of the box body is fixed through the connecting rod, and compared with an integrated brush box which is bent many times, the bending times are reduced, the overall strength of the box body is higher, the machining process is simpler, and therefore cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor brush box technology, specifically a brush box structure for a windshield wiper motor. Background Technology

[0002] Motor brush holder: This refers to the carbon brush holder that houses the motor brushes. It typically contains brushes, brush holders, brush rods, and brush rod seats, and is commonly used in mechanical structures requiring prolonged reciprocating motion, such as windshield wipers. For example, existing technology CN219576764U describes a low-power motor brush holder, relating to the field of motor brush holder technology. This utility model includes a brush holder body. Two connecting blocks are fixedly mounted on the lower surface of the brush holder body. Each connecting block, at its end away from the brush holder body, can be detachably connected to a pin. Both sides of the brush holder body have threaded grooves. A disassembly and assembly mechanism is provided between the connecting blocks and the pins. A clamping mechanism is provided inside the threaded grooves. The disassembly and assembly mechanism includes two limiting blocks and two limiting protrusions. One side of one limiting block is fixedly connected to one side of a pin, and the other side of both limiting blocks has limiting grooves.

[0003] Other existing technologies:

[0004] CN205647128U, a motor carbon brush box;

[0005] CN205647129U, a motor carbon brush box.

[0006] The brush box structure of the wiper motor mentioned in the prior art is mostly formed by bending it into one piece. The strength of the metal plate weakens after repeated bending, and it may deform after long-term use. In addition, the brush box is often sealed at the top and wrapped on all four sides, resulting in poor heat dissipation and heat accumulation that affects the internal structure. Utility Model Content

[0007] The purpose of this utility model is to provide a brush box structure for a windshield wiper motor to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a wiper motor brush box structure, comprising a box body, characterized in that: a connecting groove is provided on the side of the box body near the front, a support foot is provided on the bottom of the side of the box body near the center, and baffles are provided at the front and rear ends of the support foot.

[0009] Preferably, the box body is composed of two pieces joined together, with a splicing platform at the top of the box body and a splicing buckle at the center of the splicing platform. A connecting rod is horizontally arranged inside the box body near the tail, and threaded sleeves are fitted at both ends of the connecting rod.

[0010] Preferably, the top of the box body is provided with a top groove.

[0011] Preferably, the connecting groove has a guide angle at the groove opening.

[0012] Preferably, a fixing groove is provided above the guide angle.

[0013] Preferably, the surface of the support foot has multiple bending grooves.

[0014] Preferably, the bottom of the baffle is provided with multiple protrusions.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The wiper motor's brush box structure consists of two spliced ​​ends, which are fixed at the tail by a connecting rod. Compared to a one-piece brush box that requires multiple bends, this design reduces the number of bends, increases the overall strength of the box, and simplifies the manufacturing process, thereby reducing costs.

[0017] 2. The brush box structure of the wiper motor has a top groove that accommodates the connecting wires on the carbon brush, and the splicing buckle also plays a certain role in heat dissipation, preventing the repeated friction of the carbon brush from causing heat accumulation and damage to the internal structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a side view of the structure of this utility model;

[0021] Figure 4 This is a cross-sectional view of the splicing buckle of the structure of this utility model.

[0022] In the diagram: 1. Box body; 2. Support leg; 3. Baffle; 4. Connecting rod; 101. Top groove; 102. Splicing platform; 103. Splicing buckle; 104. Connecting groove; 105. Guide angle; 106. Fixing groove; 201. Bending groove; 202. Stamping port; 301. Boss; 401. Screw sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1This utility model provides a technical solution: a brush box structure for a windshield wiper motor.

[0025] Among them, a connecting groove 104 is provided on the side of the box body 1 near the front, and a support foot 2 is provided on the bottom side of the box body 1 near the center. Baffles 3 are provided at the front and rear ends of the support foot 2.

[0026] In this embodiment, the box body 1 is inserted into a fixed position by the support foot 2. The support foot 2 is bent inward to fix the box body 1. The baffle 3, the support foot 2 and the box body 1 are integrated. During processing, the connection between the baffle 3 and the support foot 2 is cut open. The baffle 3 is bent at 90° with the box body 1 to fit the mounting plane below the box body 1. The opening on the connecting groove 104 is used to insert the carbon brush wire.

[0027] The box body 1 is composed of two pieces joined together. A splicing platform 102 is provided at the top splicing point of the box body 1. A splicing buckle 103 is provided at the center of the splicing platform 102. A connecting rod 4 is horizontally arranged inside the box body 1 near the tail. Screw sleeves 401 are sleeved at both ends of the connecting rod 4.

[0028] In this embodiment, the male and female splicing buckles 103 at the splicing platform 102 of the two boxes 1 are aligned and snapped in, so that the two boxes 1 fit together. The screw sleeves 401 at both ends are rotated to fit together with the two sides of the box 1. The screw sleeves 401 move towards the center to clamp the box 1 to ensure that the box 1 fits together. Compared with the box made as a whole, the spliced ​​box 1 has fewer bending times and higher overall strength.

[0029] The top of the box body 1 is provided with a top groove 101.

[0030] In this embodiment, the top groove 101 is used to accommodate the connecting wires on the carbon brush, so that they can move with the carbon brush. The top opening connects the inside and outside of the box 1. Together with the gap between the splicing platform 102, it plays a certain role in heat dissipation and prevents the repeated friction of the carbon brush from causing heat accumulation and damage to the internal structure.

[0031] The connecting groove 104 has a guide angle 105 at the groove opening.

[0032] In this embodiment, the guide angle 105 changes the wire exit angle of the connecting groove 104 at the end of the connecting groove 104, which can restrict the carbon brush from sliding out. The width is smaller than the width of the connecting groove 104, so that the wire will not slide out of the groove during movement and cause equipment failure. At the same time, it can prevent the wire on the carbon brush from being scratched by the sharp parts of the housing 1.

[0033] A fixing groove 106 is provided above the guide angle 105.

[0034] In this embodiment, the support foot 2 is installed after the groove 106 is aligned with the protrusion on the installation position. The groove 106 can prevent the carbon brush holder from slipping during installation and can be pre-fixed. It can also fix the carbon brush box during subsequent use, thus improving the stability of the box body 1.

[0035] Among them, the surface of the support foot 2 has multiple bending grooves 201.

[0036] In this embodiment, the bending groove 201 passes through the surface of the support foot 2, and the support foot 2 is bent inward at the bending groove 201 position. The bending groove 201 at an appropriate position is selected according to the actual thickness of the fixing plate to wrap the fixing plate and fix the box body 1. The bending groove 201 also reduces the bending difficulty of the support foot 2 and makes bending easier.

[0037] The bottom of the baffle 3 is provided with multiple protrusions 301.

[0038] In this embodiment, the protrusion 301 adheres to the surface of the fixing plate, increasing the friction between the baffle 3 and the fixing plate. When the box 1 is in use, it is more firmly connected to the fixing plate and will not shake or change position.

[0039] Working principle: The housing 1 is pre-assembled. The screw sleeve 401 is rotated and fixed to the connecting rod 4. The carbon brush is placed into the housing 1, and the wires on the carbon brush are placed outside the housing 1 through the connecting groove 104. The housing 1 is pressed down to fix the carbon brush. After the guide angle 105 is aligned with the corresponding installation position, the support foot 2 is inserted into the fixing plate. The support foot 2 is bent to fit snugly against the fixing plate to complete the installation. When inspecting the carbon brush, the length and wear of the carbon brush can be observed through the connecting groove 104. To replace the carbon brush, simply bend the fixing foot 2 to separate it from the fixing plate to remove the carbon brush housing.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wiper motor brush box structure, comprising a box body (1), characterized in that: The box body (1) has a connecting groove (104) on its side near the front. The box body (1) has a support foot (2) on its bottom side near the center. The support foot (2) has baffles (3) at its front and rear ends. The box body (1) is made of two pieces joined together. The top of the box body (1) has a splicing platform (102) at the splicing point. The splicing platform (102) has a splicing buckle (103) at its center. The box body (1) has a connecting rod (4) arranged horizontally near the rear end inside. The connecting rod (4) has screw sleeves (401) at both ends.

2. The wiper motor brush box structure according to claim 1, characterized in that: The top of the box (1) is provided with a top groove (101).

3. The wiper motor brush box structure according to claim 1, characterized in that: The connecting groove (104) has a guide angle (105) at the groove opening.

4. The wiper motor brush box structure according to claim 3, characterized in that: A fixing groove (106) is provided above the guide angle (105).

5. The brush box structure of a wiper motor according to claim 1, characterized in that: The support foot (2) has multiple bending grooves (201) on its surface.

6. The brush box structure of a wiper motor according to claim 1, characterized in that: The bottom of the baffle (3) is provided with multiple protrusions (301).

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