A carbon brush holder assembly employing an integrated circuit

Abstract

The utility model discloses a carbon brush holder assembly adopting integrated circuit, including carbon brush holder, the connector of fixed in the side part of carbon brush holder and the circuit board of flatly in carbon brush holder front, integrated hall loop and power loop on the circuit board, be equipped with power positive and negative terminal lug and hall positive and negative terminal lug in the connector, power positive and negative terminal lug directly access the power loop on the circuit board, hall positive and negative terminal lug directly access the hall loop on the circuit board, the electronic components of circuit board set up at the back of carbon brush holder, and the pin of electronic component is welded on the circuit board after passing through carbon brush holder. The carbon brush holder assembly of the utility model through the design of integration, structural optimization and accurate positioning design has solved the problems, such as big space occupation, complex assembly, inaccurate positioning of traditional assembly, has improved assembly efficiency, structural stability and component protection effect significantly.

Description

Technical Field

[0001] This utility model relates to a carbon brush holder assembly with integrated circuitry. Background Technology

[0002] Conventional brush holder assemblies, including brush holders, connectors, and circuitry mounted on them, are limited by insufficient space on the front of the brush holder. Furthermore, conventional Hall effect sensors can only detect signals from the front. Therefore, the circuitry structure includes a Hall effect circuit board and a power circuit board, both placed vertically on the front of the brush holder to minimize their space occupation. The power circuit board contains large electronic components such as inductors, protectors, and brushes, which are typically located on the back of the brush holder. For components requiring direct connection to the power circuit board, their pins are usually passed through the brush holder and soldered to connecting tabs on the front of the brush holder before being connected to the power circuit board. This connection structure is complex and inefficient. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a carbon brush holder assembly with integrated circuitry, effectively solving the issues mentioned in the background art.

[0004] The technical solution adopted in this utility model is:

[0005] A carbon brush holder assembly with integrated circuitry includes a carbon brush holder, a connector fixed to the side of the carbon brush holder, and a circuit board placed flat on the front of the carbon brush holder. The circuit board integrates a Hall effect circuit and a power supply circuit. The connector has positive and negative power supply terminals and positive and negative Hall effect terminals. The positive and negative power supply terminals are directly connected to the power supply circuit on the circuit board, and the positive and negative Hall effect terminals are directly connected to the Hall effect circuit on the circuit board. The electronic components of the circuit board are located on the back of the carbon brush holder, and the pins of the electronic components pass through the carbon brush holder and are soldered to the circuit board.

[0006] Preferably, the carbon brush holder and connector are integrally formed.

[0007] Preferably, the front of the carbon brush holder has a mounting groove that matches the circuit board, at least two positioning posts are fixed in the mounting groove, and the circuit board has positioning holes that match the positioning posts.

[0008] Preferably, the back of the carbon brush holder is provided with positioning elements that match the electronic components, and each electronic component is positioned by the corresponding positioning element.

[0009] This utility model's carbon brush holder assembly, through integrated design, structural optimization, and precise positioning, solves the problems of large space occupation, complex assembly, and inaccurate positioning of traditional components, significantly improving assembly efficiency, structural stability, and component protection. A detailed analysis follows:

[0010] 1. Integrated Circuit Board Design: The traditionally separate Hall effect circuit board and power supply circuit board are integrated into one piece, combining the Hall effect circuit and power supply circuit, and the entire board is placed flat on the front of the carbon brush holder, replacing the traditional vertically placed dual circuit board structure. The specific effects are as follows:

[0011] Space optimization, adapted to new Hall sensors: The flat design of the integrated circuit board saves a lot of space on the front of the carbon brush holder and is compatible with side-sensing Hall sensors, solving the problem of large space occupation caused by the traditional vertical placement of dual circuit boards.

[0012] 2. Integrated Molding of Connector and Brush Holder: Abandoning the traditional separate fixing method, the carbon brush holder and connector are integrated into a single molding structure, simplifying the assembly process. The specific effects are as follows:

[0013] Simplified assembly and improved efficiency: The one-piece molded carbon brush holder and connectors eliminate the need for additional fixing steps, and electronic components are directly soldered, eliminating the need for connecting piece assembly, reducing the number of parts and assembly steps, and significantly improving assembly efficiency.

[0014] 3. Direct connection design for electronic components: Electronic components are located on the back of the brush holder, and their leads pass through the brush holder and are directly soldered to the circuit board, eliminating the need for traditional connecting tab transition structures. The specific effect is as follows:

[0015] Reduce failure risk and improve stability: Eliminating the connecting piece transition reduces contact nodes and lowers the risk of poor contact failure; the integrated structure and direct welding method improve the overall connection stability and electrical performance of the components.

[0016] 4. Precise Positioning Structure Design: The front of the carbon brush holder has mounting slots and positioning posts for the circuit board, while the back has positioning components for matching electronic components, achieving precise positioning of the circuit board and components. The specific effect is as follows:

[0017] Precise positioning and component protection: The mounting slot and positioning post work together to achieve precise assembly of the circuit board. The positioning part matches the shape of the electronic component, which not only ensures the accuracy of welding and assembly, but also provides protection for the component, reducing collision damage during transportation and use, and extending the service life of the component. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0022] like Figure 1-3 As shown, a carbon brush holder assembly with integrated circuitry includes a carbon brush holder 1, a connector 2 fixed to the side of the carbon brush holder 1, and a circuit board 3 placed flat on the front of the carbon brush holder 1. The circuit board 3 integrates a Hall effect circuit and a power supply circuit. The connector 2 has positive and negative power supply terminals 4 and Hall effect terminals 5. The positive and negative power supply terminals 4 are directly connected to the power supply circuit on the circuit board 3 and include a positive power supply terminal and a negative power supply terminal. The positive and negative Hall effect terminals 5 are directly connected to the Hall effect circuit on the circuit board 3 and include a positive Hall effect terminal and a negative Hall effect terminal. The electronic components 6 of the circuit board 3 are located on the back of the carbon brush holder 1. The pins of the electronic components 6 pass through the carbon brush holder 1 and are soldered to the circuit board 3. The electronic components 6 whose pins pass through the carbon brush holder 1 are those that need to be directly connected to the circuit board 3.

[0023] The carbon brush holder 1 and connector 2 are integrally formed.

[0024] The front of the carbon brush holder 1 is provided with a mounting groove 7 that matches the circuit board 3. At least two positioning posts 8 are fixed in the mounting groove 7. The circuit board 3 is provided with positioning holes 9 that match the positioning posts 8.

[0025] The back of the carbon brush holder 1 is provided with a positioning element 10 that matches the electronic component 6. Each electronic component 6 is positioned by the corresponding positioning element 10. Here, electronic component 6 refers to all large electronic components. The positioning element 10 is designed according to the shape of the electronic component 6, such as positioning groove, positioning post, etc.

[0026] The working principle of this utility model carbon brush holder assembly revolves around three core logics: "efficient power transmission + precise Hall signal processing + stable structural support." Relying on integrated circuit design and a unified structure, it achieves coordinated operation of power supply, circuit protection, and Hall sensor signal transmission, as detailed below:

[0027] I. Functional Positioning of Core Components

[0028] Before analyzing the working principle, it is necessary to clarify the basic functions of each core component to lay the groundwork for subsequent processes:

[0029] Carbon brush holder: As the overall structural carrier, the front side fixes the circuit board through mounting slots and positioning posts, and the back side fixes electronic components (such as inductors, protectors, etc.) through positioning parts. At the same time, it provides a pin passage channel to ensure electrical connection and structural stability.

[0030] Connector: Acts as an "external interface", with built-in power positive and negative terminals and Hall effect positive and negative terminals;

[0031] Integrated circuit board: The core functional carrier, integrating power circuit (responsible for power distribution and transmission) and Hall circuit (responsible for Hall signal reception and processing), replacing traditional discrete circuit boards and simplifying signal and power paths;

[0032] Backside electronic components: provide necessary circuit functions (such as inductor filtering, overcurrent protection, etc.), and are directly connected to the circuit board through pins to participate in the power processing of the power circuit.

[0033] II. Specific Work Process

[0034] 1. External power access

[0035] The connector uses two types of internal contacts to connect to external power sources:

[0036] Power supply circuit power access: External power (such as motor power supply system) is directly connected to the power supply circuit on the circuit board through the "power positive and negative terminals" in the connector to provide working power for the entire component;

[0037] Power supply to the Hall circuit: The Hall circuit is directly connected to an external power source through the "Hall positive and negative terminals" inside the connector to supply power to the Hall circuit;

[0038] Since the voltages of the power supply circuit and the Hall circuit are usually different, they need to be powered separately.

[0039] 2. Power Distribution and Circuit Operation (“Energy Transfer Phase”)

[0040] The electrical energy connected to the circuit board is distributed and transmitted through the power supply loop. The specific path is as follows:

[0041] After initial processing by the power supply circuit, the electrical energy is transmitted to the electronic components on the back of the carbon brush holder (such as inductors for filtering electrical energy and protectors for monitoring current) through the pin channels preset by the carbon brush holder.

[0042] After the electronic components complete their functions (such as filtering and stabilizing electrical energy, or providing overcurrent protection signals), their pins are fed back to the power circuit of the circuit board through the carbon brush holder channel, forming a complete power cycle of "electrical energy input → processing → feedback".

[0043] In this process, because the pins of electronic components are directly soldered to the circuit board (without traditional connecting pieces), there is no intermediate loss in power transmission, and circuit failures caused by poor contact of connecting pieces are avoided, ensuring the efficiency and stability of power transmission.

[0044] 3. Hall signal processing and feedback (“signal transmission stage”)

[0045] The signal transmitted by the Hall sensor is processed and fed back through the Hall loop. The specific path is as follows:

[0046] The Hall signal detected by the Hall sensor is amplified and filtered by the Hall circuit to remove interference signals.

[0047] The processed precise signals (such as motor rotor position signals) are fed back to the external control system (such as motor controller) through the Hall circuit, providing data support for motor speed regulation and direction control;

[0048] Because the circuit board is placed flat on the front of the carbon brush holder, it is compatible with the "side sensing" method of the Hall sensor, resulting in a shorter signal transmission path, reduced signal attenuation, and improved sensing accuracy.

[0049] 4. Structural support for the working principle (“Stability assurance phase”)

[0050] The structural design of the carbon brush holder provides a stable foundation for the operation of electrical functions:

[0051] The front-facing "mounting slot + positioning post" ensures precise fixation of the circuit board, guaranteeing stable contact between the connector terminals and the circuit board circuit, and preventing the wiring from coming loose due to vibration.

[0052] The "positioning components" on the back match the shape of the electronic components, fix the position of the components, prevent them from shifting and causing poor pin contact, and further ensure the stability of circuit operation.

[0053] In summary, this component achieves efficient transmission of electrical energy and Hall signals through "integrated circuitry to shorten the path, integrated structure to reduce failures, and precise positioning to ensure stability," while solving the problems of large space occupation and complex assembly of traditional components.

[0054] Finally, it should be noted that the above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A carbon brush holder assembly employing integrated circuitry, characterized in that, The device includes a carbon brush holder (1), a connector (2) fixed to the side of the carbon brush holder (1), and a circuit board (3) placed flat on the front of the carbon brush holder (1). The circuit board (3) integrates a Hall circuit and a power circuit. The connector (2) is provided with a power positive and negative terminal connector (4) and a Hall positive and negative terminal connector (5). The power positive and negative terminal connector (4) is directly connected to the power circuit on the circuit board (3), and the Hall positive and negative terminal connector (5) is directly connected to the Hall circuit on the circuit board (3). The electronic components (6) of the circuit board (3) are set on the back of the carbon brush holder (1), and the pins of the electronic components (6) are soldered to the circuit board (3) after passing through the carbon brush holder (1).

2. A carbon brush holder assembly employing integrated circuitry according to claim 1, characterized in that, The carbon brush holder (1) and connector (2) are integrally formed.

3. A carbon brush holder assembly employing integrated circuitry according to claim 1, characterized in that, The carbon brush holder (1) has a mounting groove (7) on its front side that matches the circuit board (3). At least two positioning posts (8) are fixed in the mounting groove (7). The circuit board (3) has positioning holes (9) that match the positioning posts (8).

4. A carbon brush holder assembly employing integrated circuitry according to claim 3, characterized in that, The back of the carbon brush holder (1) is provided with a positioning element (10) that matches the electronic components (6), and each electronic component (6) is positioned by the corresponding positioning element (10).

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