Fixing and limiting structure of Hall device
By designing the fixed limit structure of Hall devices, including Hall brackets and PCB boards, the problem of inaccurate fixation of Hall devices in the prior art is solved, and the accuracy and excellent induction of its position information acquisition with the motor shaft head are achieved. sex.
Patent Information
- Application Number
- CN202421131004.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The prior art is difficult to accurately fix the Hall device, resulting in inaccurate acquisition of the shaft head position information between it and the motor.
A fixed limit structure for Hall devices is designed, including Hall bracket and PCB board. The Hall bracket ring is arranged outside the shaft head of the motor, and several Hall devices are fixed between phases, each Hall device and the shaft head of the motor. The distance and angle between them are equal, and the PIN pin is welded to the PCB board.
The precise positioning and fixing of the Hall device is achieved, ensuring the relative accuracy of the position between it and the motor's shaft head, improving the induction of the Hall device, and meeting the magnet electrical performance requirements of the motor.
Smart Images
Figure CN222509046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile controllers, in particular to a fixed limiting structure of a Hall device. Background Art
[0002] The automobile oil pump and actuator are composed of a motor, a controller assembly and other parts. In order to accurately collect the motor speed, angle, rotation position and electrical signals, the controller must introduce an angle chip and a Hall device. In order to accurately collect information such as the motor speed and angle, the position of the angle chip and the Hall device from the motor's shaft head magnet must be fixed and accurate. Therefore, the inventor designed a fixed limit structure for the Hall device, which can position, support and fix the Hall device, and effectively connect and fix the Hall device and the PCB. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a fixed limit structure of a Hall device in view of the deficiencies of the prior art.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.
[0005] A fixed limit structure of a Hall device is used to collect the shaft head position information of a motor, comprising a Hall bracket and a PCB board, wherein the bottom of the Hall bracket is connected to the PCB board, the Hall bracket is arranged outside the shaft head of the motor, a plurality of Hall devices are fixed on the Hall bracket at intervals, the distance between each Hall device and the shaft head of the motor is equal, the angles formed between two adjacent Hall devices and the shaft head of the motor are equal, and the PIN needle of the Hall device is welded to the PCB board.
[0006] A preferred solution is that the Hall bracket is provided with a plurality of fixing grooves, and a Hall device is provided in each fixing groove.
[0007] A preferred solution is that a limiting notch is provided on one side of the fixing groove close to the shaft head of the motor, and the front end surface of the Hall device is located in the limiting notch.
[0008] A preferred solution is that a PIN pin guide hole is passed through the bottom of the fixing groove, and the PIN pin of the Hall device passes through the PIN pin guide hole and is welded to the PCB board.
[0009] A preferred solution is that the Hall bracket is an arc-shaped structure, and a plurality of positioning columns are provided at the bottom of the Hall bracket, and the plurality of positioning columns are respectively connected to the PCB boards.
[0010] A preferred solution is that the number of the positioning posts is 3 to 5, and the diameter of the positioning posts is:
[0011] 1.2mm~2mm.
[0012] A preferred solution is that the angle formed between two adjacent Hall devices and the shaft head of the motor is 30 degrees to 50 degrees.
[0013] A preferred solution is that the distance between the Hall device and the shaft head of the motor is 30 mm to 40 mm.
[0014] A preferred solution is that the height between the Hall device and the PCB board is 8 mm to 10 mm.
[0015] A preferred solution is that the fixed limiting structure of the Hall device also includes an annular shell, the Hall bracket and the PCB board are fixedly connected to the annular shell respectively, and an axial hole through which the shaft head of the power supply motor passes is provided at the center of the annular shell.
[0016] The fixed limiting structure of the Hall device provided in the embodiment of the utility model has at least the following beneficial effects: the Hall bracket can limit, support and fix the Hall device, and effectively connect and fix the Hall device and the PCB, thereby ensuring that the position between the Hall device and the shaft head of the motor is relatively accurate, the Hall device has excellent induction, and meets the magnetoelectric performance requirements of the Hall device and the motor.
[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a three-dimensional Figure 1 ;
[0019] Figure 2 The utility model is a three-dimensional Figure 2 ;
[0020] Figure 3 It is a cross-sectional view of the utility model;
[0021] Figure 4 It is a three-dimensional diagram of the Hall bracket in the utility model;
[0022] Figure 5 It is a three-dimensional diagram of the Hall device in the utility model;
[0023] Figure 6 It is a top view of the utility model. DETAILED DESCRIPTION
[0024] In order to explain the idea and purpose of the present application, the present application will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", "left", "right", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.
[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0027] like Figures 1 to 6 As shown, an embodiment of the present application provides a fixed limiting structure of a Hall device, which is used to collect position information of a shaft head 40 of a motor, and includes a Hall bracket 10 and a PCB board 20. The bottom of the Hall bracket 10 is connected to the PCB board 20. The Hall bracket 10 is arranged outside the shaft head 40 of the motor. A plurality of Hall devices 30 are fixed on the Hall bracket 10 at intervals. The distance between each Hall device 30 and the shaft head 40 of the motor is equal, and the angles formed between two adjacent Hall devices 30 and the shaft head 40 of the motor are equal. The PIN needle 31 of the Hall device 30 is welded to the PCB board 20.
[0028] like Figures 1 to 6 As shown, the shaft head 40 of the motor is provided with a magnet 41, and the Hall bracket 10 can limit, support and fix the Hall device 30, and effectively connect and fix the Hall device 30 and the PCB board 20, thereby ensuring that the position between the Hall device 30 and the shaft head 40 of the motor is relatively accurate, and the Hall device 30 has excellent induction, meeting the electrical performance requirements of the Hall device 30 and the magnet 41 of the motor.
[0029] like Figures 1 to 6 As shown, the Hall bracket 10 is provided with a plurality of fixing grooves 11 , and a Hall device 30 is provided in each fixing groove 11 .
[0030] like Figures 1 to 6As shown, a limiting notch 12 is provided on one side of the fixing slot 11 close to the shaft head 40 of the motor, and the front end surface of the Hall device 30 is located in the limiting notch 12. The front end surface of the Hall device 30 is located in the limiting notch 12, so that the height of the Hall device 30 can be limited, and the structure is simple and the space is tight.
[0031] like Figures 1 to 6 As shown, a PIN pin guide hole 111 is penetrated at the bottom of the fixing groove 11, and the PIN pin 31 of the Hall device 30 passes through the PIN pin guide hole 111 and is welded to the PCB board 20. In order to ensure that the PIN pin 31 of the Hall device 30 is accurately inserted into the PCB board 20, a PIN pin guide hole 111 is penetrated at the bottom of the fixing groove 11, and the PIN pin 31 of the Hall device 30 passes through the PIN pin guide hole 111 and is welded to the PCB board 20. The PIN pin guide hole 111 guides the PIN pin 31 of the Hall device 30 and protects the PIN pin 31 of the Hall device 30 at the same time.
[0032] like Figures 1 to 6 As shown, the Hall bracket 10 is an arc-shaped structure, and a plurality of positioning posts 13 are provided at the bottom of the Hall bracket 10, and the plurality of positioning posts 13 are respectively connected to the PCB board 20. The PCB board 20 is an arc-shaped structure.
[0033] like Figures 1 to 6 As shown, the number of the positioning posts 13 is 3 to 5, and the diameter of the positioning posts 13 is 1.2 mm to 2 mm.
[0034] like Figures 1 to 6 As shown, the angle formed between two adjacent Hall devices 30 and the shaft head 40 of the motor is 30 degrees to 50 degrees.
[0035] like Figures 1 to 6 As shown, the distance between the Hall device 30 and the shaft head 40 of the motor is 30 mm to 40 mm.
[0036] like Figures 1 to 6 As shown, the height between the Hall device 30 and the PCB board 20 is 8mm to 10mm. The angle formed between two adjacent Hall devices 30 and the shaft head 40 of the motor is 40 degrees, the distance between the Hall device 30 and the shaft head 40 of the motor is 36mm, and the height between the Hall device 30 and the PCB board 20 is 9.0mm. Through the above design, the Hall device 30 is accurately limited.
[0037] like Figures 1 to 6 As shown, the fixed limiting structure of the Hall device also includes an annular housing 50, and the Hall bracket 10 and the PCB board 20 are respectively fixedly connected to the annular housing 50. The center of the annular housing 50 is provided with an axial hole 41 through which the shaft head 40 of the power supply motor passes.
[0038] The above is a specific implementation of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.
Claims
1. A fixed limit structure of a Hall device, used for collecting shaft head position information of a motor, characterized in that: It includes a Hall bracket and a PCB board, the bottom of the Hall bracket is connected to the PCB board, the Hall bracket is arranged outside the shaft head of the motor, a plurality of Hall devices are fixed on the Hall bracket at intervals, the distance between each Hall device and the shaft head of the motor is equal, the angles formed between two adjacent Hall devices and the shaft head of the motor are equal, and the PIN needle of the Hall device is welded to the PCB board.
2. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The Hall bracket is provided with a plurality of fixing grooves, and a Hall device is arranged in each fixing groove.
3. The fixed limiting structure of the Hall device according to claim 2, characterized in that: A limiting notch is provided on one side of the fixing groove close to the shaft head of the motor, and the front end surface of the Hall device is located in the limiting notch.
4. The fixed limiting structure of the Hall device according to claim 2, characterized in that: A PIN pin guide hole is formed through the bottom of the fixing groove, and the PIN pin of the Hall device passes through the PIN pin guide hole and is welded to the PCB board.
5. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The Hall bracket is an arc-shaped structure, and a plurality of positioning columns are provided at the bottom of the Hall bracket, and the plurality of positioning columns are respectively connected to the PCB boards.
6. The fixed limiting structure of the Hall device according to claim 5, characterized in that: The number of the positioning posts is 3 to 5, and the diameter of the positioning posts is 1.2 mm to 2 mm.
7. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The angle formed between two adjacent Hall devices and the shaft head of the motor is 30 degrees to 50 degrees.
8. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The distance between the Hall device and the shaft head of the motor is 30 mm to 40 mm.
9. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The height between the Hall device and the PCB board is 8 mm to 10 mm.
10. The fixed limiting structure of the Hall device according to claim 1, characterized in that: The fixed limiting structure of the Hall device also includes an annular shell, and the Hall bracket and the PCB board are fixedly connected to the annular shell respectively. The center of the annular shell is provided with an axial hole through which the shaft head of the power supply motor passes.