New energy automobile water pump carbon brush

Abstract

The utility model discloses a new energy automobile water pump carbon brush which comprises a bottom plate and a carbon brush assembly, a through hole used for installing a commutator is arranged in the middle of the bottom plate, two carbon brush supports are arranged at the upper end of the bottom plate, each carbon brush support comprises a carbon brush bin and a driving bin, and the carbon brush assembly comprises a carbon brush and a driving plate. One end of the carbon brush is fixedly connected with the driving plate, openings are formed in the two sides of the carbon brush bin, the carbon brush is movably installed in the carbon brush bin, a tension spring is arranged in the driving bin, one end of the tension spring is fixedly connected with the driving bin, the other end of the tension spring is connected with the driving plate, and the driving plate controls the driving plate to move towards the circle center through the tension of the tension spring. According to the utility model, the carbon brush can be directly inserted into the carbon brush bin from the outer side of the carbon brush bracket, one end of the carbon brush can be stably contacted with the commutator through the tension of the tension spring, and the carbon brush assembly can be directly replaced without separating the bottom plate from the commutator when being replaced, so that the replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush technology, specifically to a carbon brush for a water pump in a new energy vehicle. Background Technology

[0002] Carbon brushes for water pumps in new energy vehicles are key components used in water pump motors. Their main function is to transmit current from the power source to the motor rotor through contact with the commutator during motor operation, thereby driving the motor to rotate and enabling the water pump to work.

[0003] When the carbon brushes are severely worn or damaged, the water pump will experience reduced water output or intermittent water flow. In this case, the carbon brushes need to be replaced. Conventional carbon brushes have a spring at the end, which allows the carbon brush to maintain stable contact with the commutator. When replacing carbon brushes, the base plate brush holder needs to be removed first, then the carbon brush needs to be installed, and then it needs to be installed with the commutator. Because the spring compresses one end of the carbon brush, the other end of the carbon brush will extend into the round hole where the commutator is installed. This makes it difficult for the commutator to pass through the round hole during installation, resulting in installation difficulties and low carbon brush replacement efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a carbon brush for a water pump in a new energy vehicle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon brush for a water pump in a new energy vehicle, comprising a base plate and a carbon brush assembly, wherein the base plate has a through hole in the middle for mounting a commutator, and two carbon brush supports are provided at the upper end of the base plate, and the carbon brush supports are symmetrically arranged, wherein the carbon brush support includes a carbon brush chamber and a drive chamber, and the carbon brush chamber and the drive chamber are isolated by a partition.

[0006] The carbon brush assembly includes a carbon brush and a drive plate, with one end of the carbon brush fixedly connected to the drive plate.

[0007] The carbon brush compartment has openings on both sides, with the openings facing the center, and the carbon brush is movably installed inside the carbon brush compartment.

[0008] The drive chamber is equipped with a tension spring, one end of which is fixedly connected to the drive chamber and the other end is connected to the drive plate. The drive plate moves toward the center of the circle by the tension of the tension spring.

[0009] Preferably, the drive compartment has openings on its upper and outer sides, and two guide pillars are provided inside the drive compartment. The two guide pillars are located on both sides of the tension spring, and one end of the guide pillar is fixed to the inside of the drive compartment.

[0010] Preferably, the drive plate includes an upper plate and a lower plate, which are I-shaped. The lower plate is located inside the carbon brush compartment and is fixedly connected to one end of the carbon brush. The upper plate is located inside the drive compartment and is slidably connected to two guide posts.

[0011] Preferably, the drive plate includes an upper plate and a lower plate, which are I-shaped. The lower plate is located inside the carbon brush compartment and is fixedly connected to one end of the carbon brush. The upper plate is located inside the drive compartment and is slidably connected to two guide posts.

[0012] Preferably, one end of the tension spring is provided with a hook, the middle of the upper plate is provided with a pull hole, the hook is located inside the pull hole and is detachably connected to the pull hole.

[0013] Preferably, the partition has a through groove in the middle for avoiding the drive plate, and there is a gap between the through groove and the drive plate.

[0014] Preferably, the carbon brush holder has outer edge plates on both sides of its bottom, and the outer edge plates are fixed to the base plate by screws.

[0015] Preferably, the carbon brush assembly further includes a wire connected to the outer end face of the carbon brush, and the end of the wire is provided with a copper sheet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can directly insert the carbon brush into the carbon brush compartment from the outside of the carbon brush holder. The upper plate of the drive plate is provided with two guide holes that match the two guide posts. Then, the drive plate is inserted into the guide posts through the guide holes, and then the tension spring is pulled so that the pull hook is inserted into the pull hole and hooks the pull hole. At this time, the tension spring is stretched, and the tension of the tension spring makes one end of the carbon brush make stable contact with the commutator. When replacing the carbon brush assembly, it is not necessary to separate the base plate from the commutator and it can be replaced directly, which improves the replacement efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a schematic diagram of the carbon brush assembly structure of this utility model.

[0020] In the diagram: 1. Base plate; 2. Carbon brush assembly; 21. Carbon brush; 22. Drive plate; 221. Upper plate; 222. Lower plate; 223. Pull hole; 23. Wire; 24. Copper sheet; 3. Carbon brush holder; 31. Carbon brush chamber; 32. Drive chamber; 33. Partition; 34. Guide post; 35. Through groove; 36. Outer edge plate; 4. Tension spring; 41. Pull hook. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3This utility model provides a technical solution: a carbon brush for a water pump in a new energy vehicle, including a base plate 1 and a carbon brush assembly 2. The base plate 1 has a through hole in the middle for installing a commutator. Two carbon brush supports 3 are provided on the upper end of the base plate 1, and the carbon brush supports 3 are symmetrically arranged. The bottom sides of the carbon brush supports 3 are provided with outer edge plates 36, which are fixed to the base plate 1 by screws. The carbon brush assembly 2 includes a carbon brush 21 and a drive plate 22. One end of the carbon brush 21 is fixedly connected to the drive plate 22. The carbon brush assembly 2 is a consumable, and it is replaced together with the carbon brush 21 when the carbon brush 21 is replaced. The partition plate 33 has a through groove 35 in the middle for avoiding the drive plate 22. A gap is provided between the groove 35 and the drive plate 22 to prevent friction between the drive plate 22 and the partition 33 when the drive plate 22 moves. The carbon brush holder 3 includes a carbon brush chamber 31 and a drive chamber 32, which are separated by the partition 33. The carbon brush chamber 31 has openings on both sides, and the openings face the center. The carbon brush 21 is movably installed inside the carbon brush chamber 31. The drive chamber 32 has a tension spring 4 inside, and one end of the tension spring 4 is fixedly connected to the drive chamber 32, and the other end is connected to the drive plate 22. When the carbon brush 21 wears, the drive plate 22 moves towards the center through the tension of the tension spring 4. The drive chamber 32 has a top and an outer side with The drive chamber 32 has an opening and two guide posts 34 inside. The two guide posts 34 are located on both sides of the tension spring 4, and one end of the guide posts 34 is fixed to the inside of the drive chamber 32. The drive plate 22 includes an upper plate 221 and a lower plate 222, which are I-shaped. The lower plate 222 is located inside the carbon brush chamber 31 and is fixedly connected to one end of the carbon brush 21. The upper plate 221 is located inside the drive chamber 32 and is slidably connected to the two guide posts 34. The sliding of the drive plate 22 on the guide posts 34 can increase the stability of the movement of the carbon brush 21. One end of the tension spring 4 is provided with a hook 41, and the upper plate 221 is provided with a pull hole 223 in the middle. The hook 41 is located inside the pull hole 223 and is movable from the pull hole 223. When installing carbon brush 21, first insert carbon brush 21 into carbon brush compartment 31 from the outside of carbon brush holder 3. The upper plate 221 of drive plate 22 has two guide holes that match the two guide posts 34. Then insert drive plate 22 into guide post 34 through guide holes. Then pull spring 4 so that hook 41 is inserted into pull hole 223 and hooks pull hole 223. At this time, spring 4 is stretched. Through the tension of spring 4, one end of carbon brush 21 can make stable contact with commutator. In addition, when replacing carbon brush assembly 2, it is not necessary to separate base plate 1 from commutator and can be replaced directly, which improves replacement efficiency.

[0023] The carbon brush assembly 2 also includes a wire 23 connected to the outer end face of the carbon brush 21. The end of the wire 23 is provided with a copper sheet 24. The wire 23 is used to energize the carbon brush 21, and the copper sheet 24 is used to fix it to the base plate 1.

[0024] Working principle and usage process of this utility model:

[0025] First, insert the carbon brush 21 into the carbon brush holder 31 from the outside. The upper plate 221 of the drive plate 22 is provided with two guide holes that match the two guide posts 34. Then, insert the drive plate 22 into the guide post 34 through the guide holes. Then, pull the tension spring 4 so that the hook 41 is inserted into the pull hole 223 and hooks the pull hole 223. At this time, the tension spring 4 is stretched. The tension of the tension spring 4 enables one end of the carbon brush 21 to make stable contact with the commutator. In addition, when replacing the carbon brush assembly 2, it is not necessary to remove the base plate 1 and it can be replaced directly.

[0026] 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 carbon brush for a water pump in a new energy vehicle, comprising a base plate (1) and a carbon brush assembly (2), wherein the base plate (1) has a through hole in the middle for mounting a commutator, and two carbon brush supports (3) are provided on the upper end of the base plate (1), and the carbon brush supports (3) are symmetrically arranged, characterized in that: The carbon brush holder (3) includes a carbon brush compartment (31) and a drive compartment (32), and the carbon brush compartment (31) and the drive compartment (32) are separated by a partition (33); The carbon brush assembly (2) includes a carbon brush (21) and a drive plate (22), with one end of the carbon brush (21) fixedly connected to the drive plate (22); The carbon brush compartment (31) has openings on both sides, and the openings face the center. The carbon brush (21) is movably installed inside the carbon brush compartment (31). The drive chamber (32) is equipped with a tension spring (4), one end of which is fixedly connected to the drive chamber (32) and the other end is connected to the drive plate (22). The drive plate (22) is controlled to move towards the center by the tension of the tension spring (4).

2. The carbon brush for a water pump in a new energy vehicle according to claim 1, characterized in that: The drive chamber (32) has openings on its upper and outer sides. The drive chamber (32) has two guide pillars (34) inside. The two guide pillars (34) are located on both sides of the tension spring (4), and one end of the guide pillar (34) is fixed to the inside of the drive chamber (32).

3. The carbon brush for a water pump in a new energy vehicle according to claim 2, characterized in that: The drive plate (22) includes an upper plate (221) and a lower plate (222), which are in the shape of an I-beam. The lower plate (222) is located inside the carbon brush chamber (31) and is fixedly connected to one end of the carbon brush (21). The upper plate (221) is located inside the drive chamber (32) and is slidably connected to two guide posts (34).

4. The carbon brush for a water pump in a new energy vehicle according to claim 3, characterized in that: The tension spring (4) has a hook (41) at one end, and the upper plate (221) has a pull hole (223) in the middle. The hook (41) is located inside the pull hole (223) and is detachably connected to the pull hole (223).

5. A carbon brush for a water pump in a new energy vehicle according to claim 1, characterized in that: The partition (33) has a through groove (35) in the middle for avoiding the drive plate (22), and there is a gap between the through groove (35) and the drive plate (22).

6. The carbon brush for a water pump in a new energy vehicle according to claim 1, characterized in that: The carbon brush holder (3) has outer edge plates (36) on both sides of its bottom, and the outer edge plates (36) are fixed to the base plate (1) by screws.

7. A carbon brush for a water pump in a new energy vehicle according to claim 1, characterized in that: The carbon brush assembly (2) also includes a wire (23) connected to the outer end face of the carbon brush (21), and the end of the wire (23) is provided with a copper sheet (24).

Images