High-precision transmission skylight motor carbon brush holder assembly

Abstract

The utility model relates to the technical field of skylight motor parts, and discloses a high-precision transmission skylight motor carbon brush holder assembly, which comprises a bottom plate and a circuit board unit arranged on the surface of the bottom plate, a carbon brush holder plate is crimped on the surface of the circuit board unit, one side of the carbon brush holder plate is electrically connected with a connector, and the other side of the carbon brush holder plate is electrically connected with the connector. A carbon brush block is mounted in the carbon brush holder plate; and an inductor is fixedly mounted in the carbon brush holder plate. According to the utility model, the double-Hall structure is arranged in the circuit board unit, and the double-grounding-piece structure is arranged at the outer side of the double-Hall structure, so that the two grounding pieces are contacted with the motor end cover to form a loop, and the grounding effect is ensured by arranging the grounding pieces close to the Hall structures; through the arrangement, the skylight motor has high sensitivity when working, the problems that one grounding piece in an existing Hall structure is poor in grounding effect and insufficient in contact in use are solved, and high accuracy of the skylight motor is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of skylight motor parts, in particular to a high-precision transmission skylight motor carbon brush holder assembly. Background Technique

[0002] The skylight motor is an important component in automobiles such as sedans and heavy-duty vehicles, providing power for the movement of the skylight. The existing automobile skylight motor is composed of a motor housing, a rotor, a stator, an armature shaft, a reducer, a long shaft, and a carbon brush holder. The armature shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the long shaft. A transmission arm is sleeved on the long shaft. When the armature shaft of the motor rotates forward and backward, the reducer receives the power of the motor and drives the opening mechanism and the transmission arm through the long shaft to open or close the skylight.

[0003] Among them, the function of the carbon brush holder is to apply pressure to the carbon brush that slides in contact with the surface of the commutator or slip ring through a spring, so that it can stably conduct current between the fixed body and the rotating body. For the motor, the brush holder and the carbon brush are very important components.

[0004] When the skylight motor is working, it requires relatively high sensitivity. At present, in order to ensure the working effect of the skylight motor, usually only a simple double Hall structure is set. However, during the use of the motor, due to the unstable connection effect and often insufficient contact during use, it is easy to make the working accuracy of the skylight motor poor, and even electric leakage occurs, seriously affecting the overall safety of the skylight motor. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a high-precision transmission skylight motor carbon brush holder assembly, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical scheme: a high-precision transmission skylight motor carbon brush holder assembly, including: a bottom plate, and further including: a circuit board unit is installed on the surface of the bottom plate, and a carbon brush holder plate is press-connected to the surface of the circuit board unit. One side of the carbon brush holder plate is electrically connected to a connector, and a carbon brush block is installed inside the carbon brush holder plate;

[0007] An inductor is fixedly installed inside the carbon brush holder plate, and a spring is arranged below the inductor and is fixedly installed inside the carbon brush holder plate;

[0008] The circuit board unit includes a board body, and the board body is fixedly installed below the carbon brush holder plate. Two grounding pieces are welded to the surface of the board body, and the grounding pieces are in contact connection with the motor end cover;

[0009] Two Hall elements are also connected to the surface of the board body, and the two Hall elements are arranged close to each other inside the two grounding pieces.

[0010] Further, first capacitors are arranged on the inner sides of the two grounding pieces, and the two first capacitors are electrically connected to the surface of the board body.

[0011] Further, first resistors are installed on one side of each of the first capacitors, and the two first resistors are respectively connected in series with two Hall elements.

[0012] Further, a first diode is also arranged on one side of the first resistor, and the first diode is electrically connected to the first capacitor. Both ends of the first diode are electrically connected to second capacitors, and the second capacitors are electrically connected to a fourth capacitor for control.

[0013] Further, a second diode is also welded to the surface of the board body, and the second diode is electrically connected to a second resistor, and the second diode is electrically connected to a third capacitor for control.

[0014] Further, the brush spring force of the carbon brush block is 1.0 - 2.2 N.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] In the present utility model, by arranging a dual Hall structure inside the circuit board unit and a dual grounding piece structure outside the dual Hall structure, the two grounding pieces are brought into contact with the motor end cover to form a loop. By arranging the grounding pieces close to the Hall elements, the grounding effect is ensured, so that the sunroof motor has relatively high sensitivity during operation. Through such an arrangement, the problems of poor grounding effect of one grounding piece and insufficient contact during use in the current Hall structure are avoided, and the high precision of the sunroof motor is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a high-precision transmission sunroof motor carbon brush holder assembly of the present utility model;

[0018] Figure 2 is a schematic side view structural diagram of a high-precision transmission sunroof motor carbon brush holder assembly of the present utility model;

[0019] Figure 3 is a schematic top view structural diagram of a high-precision transmission sunroof motor carbon brush holder assembly of the present utility model.

[0020] Figure 4 is a schematic sectional view structural diagram of a high-precision transmission sunroof motor carbon brush holder assembly of the present utility model;

[0021] Figure 5 is a schematic partial exploded view structural diagram of a high-precision transmission sunroof motor carbon brush holder assembly of the present utility model.

[0022] Figure 6It is a three-dimensional structure schematic diagram of the circuit board unit in the present utility model;

[0023] Figure 7 It is a top view structure schematic diagram of the circuit board unit in the present utility model;

[0024] Figure 8 It is a side view structure schematic diagram of the circuit board unit in the present utility model;

[0025] Figure 9 It is an electrical connection structure schematic diagram of the circuit board unit in the present utility model.

[0026] In the figure: 1, bottom plate; 2, circuit board unit; 21, first diode; 22, first resistor; 23, first capacitor; 24, grounding piece; 25, second capacitor; 26, Hall; 27, second diode; 28, third capacitor; 29, second resistor; 210, board body; 211, fourth capacitor; 3, connector; 4, carbon brush holder plate; 5, carbon brush block; 6, inductor; 7, spring. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-9 , a high-precision drive skylight motor carbon brush holder assembly, including: bottom plate 1, circuit board unit 2, first diode 21, first resistor 22, first capacitor 23, grounding piece 24, second capacitor 25, Hall 26, second diode 27, third capacitor 28, second resistor 29, board body 210, fourth capacitor 211, connector 3, carbon brush holder plate 4, carbon brush block 5, inductor 6 and spring 7. It further includes: a circuit board unit 2 is installed on the surface of the bottom plate 1, and a carbon brush holder plate 4 is press-connected on the surface of the circuit board unit 2 to facilitate the installation of the carbon brush block 5. At the same time, in order to achieve the connection effect of the carbon brush holder, a connector 3 is electrically connected to one side of the carbon brush holder plate 4 to facilitate the stable connection of the circuit board unit 2. At the same time, a carbon brush block 5 is installed inside the carbon brush holder plate 4, and the carbon brush elasticity of the carbon brush block 5 is 1.0 - 2.2 N, ensuring the elasticity and conductive effect of the carbon brush block 5, which is beneficial to extending the service life of the carbon brush block 5. At the same time, an inductor 6 is fixedly installed inside the carbon brush holder plate 4 to protect the working effect of the motor, and a spring 7 is arranged below the inductor 6, and the spring 7 is fixedly installed inside the carbon brush holder plate 4;

[0029] The circuit board unit 2 includes a board body 210. The board body 210 is a 1mm PCB board body 210, and the board body 210 is fixedly installed below the carbon brush holder plate 4. Specifically, two grounding plates 24 are welded and connected to the surface of the board body 210, and the grounding plates 24 are in contact connection with the motor end cover. Under the action of the double grounding plates 24, it passes the full-frequency EMC Class 5 electromagnetic compatibility test. At the same time, two Hall sensors 26 are also connected to the surface of the board body 210. The phase difference accuracy of the two Hall sensors 26 is ±5°. And the two Hall sensors 26 are respectively arranged close to the inner sides of the two grounding plates 24. The model of the Hall sensor 26 is APS12060LLHALX-OL, which can provide accurate speed and position feedback for the motor. And first capacitors 23 are arranged on the inner sides of the two grounding plates 24. The model of the first capacitor 23 is AM03B472K500AT, and the two first capacitors 23 are electrically connected to the surface of the board body 210. A first resistor 22 is installed on one side of each first capacitor 23. The model of the first resistor 22 is ABFO6K2431FT, and the two first resistors 22 are respectively connected in series with the two Hall sensors 26, ensuring the working stability of the double Hall sensors 26.

[0030] Further, a first diode 21 is also arranged on one side of the first resistor 22. The model of the first diode 21 is SMBJ33CAH, and the first diode 21 is electrically connected to the first capacitor 23. Both ends of the first diode 21 are electrically connected to a second capacitor 25. The model of the second capacitor 25 is C0603C103K1RACAUTO, and the second capacitor 25 is controlled by a fourth capacitor 211. The model of the fourth capacitor 211 is AC1206KKX7R0BB225. At the same time, a second diode 27 is also welded and connected to the surface of the board body 210. The model of the second diode 27 is JEU24T28, and the second diode 27 is electrically connected to a second resistor 29. The model of the second resistor 29 is ABD03K101JT, and the second diode 27 is controlled by a third capacitor 28. And the model of the third capacitor 28 is AMO3B / 104K500AT. Considering the soldering effect of the circuit board unit 2, the soldering height does not exceed 1.2mm, and the surface is subjected to tin spraying treatment.

[0031] Working principle: During use, by arranging a board body 210 inside the circuit board unit 2 and arranging two Hall elements 26 on the surface of the board body 210, precise magnetic field detection is achieved, facilitating precise control of the motor, ensuring high-precision operation of the skylight actuator. At the same time, with the dual grounding plate 24 structure arranged outside the dual Hall 26 structure, the two grounding plates 24 are in contact with the motor end cover to form a loop, ensuring the grounding effect. Moreover, with the grounding plates arranged close to the Hall elements 26, the skylight motor has high sensitivity during operation and good grounding effect, improving the contact stability of the skylight motor and facilitating high-precision transmission work of the skylight motor. In this way, the working principle of the high-precision transmission skylight motor carbon brush holder assembly is completed.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision drive skylight motor carbon brush holder assembly, comprising: The base plate (1), characterized in that it further comprises: a circuit board unit (2) is mounted on the surface of the base plate (1), and a carbon brush holder plate (4) is press-fitted on the surface of the circuit board unit (2), one side of the carbon brush holder plate (4) is electrically connected to a connector (3), and a carbon brush block (5) is installed inside the carbon brush holder plate (4); An inductor (6) is fixedly installed inside the carbon brush holder plate (4), a spring (7) is arranged below the inductor (6), and the spring (7) is fixedly installed inside the carbon brush holder plate (4); The circuit board unit (2) includes a board body (210), and the board body (210) is fixedly installed below the carbon brush holder plate (4). Two grounding pieces (24) are welded and connected to the surface of the board body (210), and the grounding pieces (24) are in contact connection with the motor end cover; Two Hall elements (26) are also connected to the surface of the board body (210), and the two Hall elements (26) are arranged close to the inner sides of the two grounding pieces (24) respectively.

2. The carbon brush holder assembly of a high-precision transmission skylight motor according to claim 1, characterized in that First capacitors (23) are arranged on the inner sides of the two grounding pieces (24), and the two first capacitors (23) are electrically connected to the surface of the board body (210).

3. The high-precision drive skylight motor carbon brush holder assembly according to claim 2, characterized in that, A first resistor (22) is installed on one side of each of the first capacitors (23), and the two first resistors (22) are respectively connected in series with the two Hall elements (26).

4. A high-precision drive skylight motor carbon brush holder assembly according to claim 3, characterized in that, A first diode (21) is further arranged on one side of the first resistor (22), and the first diode (21) is electrically connected to the first capacitor (23). Both ends of the first diode (21) are electrically connected to a second capacitor (25), and the second capacitor (25) is electrically connected to a fourth capacitor (211) for control.

5. The carbon brush holder assembly of a high-precision transmission skylight motor according to claim 2, characterized in that A second diode (27) is also welded and connected to the surface of the board body (210), the second diode (27) is electrically connected to a second resistor (29), and the second diode (27) is electrically connected to a third capacitor (28) for control.

6. The carbon brush holder assembly of a high-precision transmission skylight motor according to claim 1, characterized in that, The carbon brush elasticity of the carbon brush block (5) is 1.0 - 2.2 N.

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