Hall support

Abstract

The utility model relates to the technical field of brushless motors, in particular to a Hall support which comprises a positioning column and a support body, the positioning column is fixed to the top face of the support body, a Hall plate is provided with a positioning hole in a penetrating mode, the positioning column penetrates through the positioning hole in a matched mode, a Hall element is fixed to one side of the Hall plate, and the Hall element and the support body are assembled. According to the Hall support, detachable connection between the Hall plate and the stator iron core is achieved, and accurate positioning of the Hall plate and the stator iron core is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of brushless motors, and in particular to a Hall effect bracket. Background Art

[0002] Brushless motors are widely used in various electrical appliances. Currently, there are various ways to fix the Hall plate. Generally, slots are cut on the stator core to place and fix the Hall plate, or the Hall plate is directly fixed to the stator core. However, when fixing the Hall plate in the above way, the operator needs to align the Hall plate and the stator core with high precision to accurately position the two. Once a position deviation occurs, the Hall plate can no longer be separated. Even if the Hall plate can be separated from the stator core, it will cause damage to the Hall plate. Summary of the Invention

[0003] In order to achieve a detachable connection between the Hall plate and the stator core and ensure the precise positioning of the two, the present application provides a Hall bracket.

[0004] This application provides a Hall effect bracket that adopts the following technical solution:

[0005] A Hall bracket includes a positioning column and a bracket body, wherein the positioning column is fixed to the top surface of the bracket body, a Hall plate is penetrated by a positioning hole, the positioning column is adapted to pass through the positioning hole, a Hall element is fixed on one side of the Hall plate, and the Hall element is assembled with the bracket body.

[0006] By adopting the above technical solution, the positioning column is passed through the positioning hole on the Hall plate to achieve precise alignment and stable connection between the Hall bracket and the Hall plate, effectively reducing the loosening or displacement of components during motor operation; the Hall element is assembled with the bracket body, so that the Hall bracket can provide stable support and protection for the Hall element to prevent external factors from damaging the Hall element, thereby ensuring the stable operation of the brushless motor and helping to extend the service life of the brushless motor.

[0007] Compared with the existing technology, the Hall plate and the stator core are connected through a Hall bracket, and the connection between the structures is detachable, making the assembly between the structures simpler and easier to operate. Accuracy can also be ensured through repeated disassembly, which is convenient for subsequent maintenance work and more in line with production needs.

[0008] Preferably, a fixing groove is provided on the bracket body, an end of the Hall element away from the Hall plate is inserted into the fixing groove, and the pins of the Hall element are fixed to the Hall plate by soldering.

[0009] By adopting the above technical solution, the pin of the Hall element is soldered and fixed on the Hall plate, and the other end is directly inserted into the fixing groove to realize the connection between the Hall bracket, the Hall element and the Hall plate. The fixing groove provides a limit and fixation function for the end of the Hall element, so that the Hall element maintains a stable position during the operation of the motor, effectively reducing the damage or performance degradation of the Hall element caused by vibration or impact. In addition, the mutual plug-in installation method is adopted to simplify the assembly process of the Hall bracket and the Hall element, improve production efficiency, and facilitate subsequent maintenance.

[0010] Preferably, an elastic backrest is vertically installed on the bracket body at a position close to the fixing groove.

[0011] By adopting the above technical solution, the backrest design provides elastic support for the Hall element, allowing the Hall element to be easily snapped into the fixing slot, improving the installation convenience and efficiency of the Hall element. At the same time, it helps to absorb vibration and impact during motor operation, protecting the Hall element from damage, thereby extending its service life.

[0012] Preferably, a through groove is provided through the backrest.

[0013] By adopting the above technical solution, the opening of the through groove can increase elasticity, reduce the contact area between the Hall element and the backrest, and further improve the installation convenience of the Hall element.

[0014] Preferably, an undercut is fixed on one side of the backrest close to the fixing groove, and a space for the Hall element to be engaged is left between the bottom end of the undercut and the bottom of the fixing groove. When the Hall element is inserted into the fixing groove, the inner top surface of the Hall element abuts against the bottom surface of the undercut, and one side wall of the Hall element abuts against the side wall of the undercut.

[0015] By adopting the above technical solution, the space between the undercut and the fixing groove provides a stable clamping position for the Hall element, ensuring the position stability and reliability of the Hall element after assembly, and reducing the displacement or falling off of the Hall element due to external force. The inner top surface of the Hall element abuts against the bottom surface of the undercut, and the side walls of the Hall element abut against the side walls of the undercut, forming a multi-faceted constraint, which can further enhance the fixing effect of the Hall element, so as to reduce the shaking and micro-motion of the Hall element during operation, and help improve the stability of the output signal of the Hall element.

[0016] Preferably, a plurality of fixing grooves are provided on the bracket body, and the angle between two adjacent fixing grooves is A, A=360 / (mp), wherein m is the number of motor phases and p is the number of motor pole pairs.

[0017] By adopting the above technical solution, the fixing slots are arranged at an angle A, allowing the Hall element to be fixed at multiple angles, which helps to improve the control accuracy and response speed of the motor to a certain extent. At the same time, this arrangement also helps to maintain the compactness of the entire structure.

[0018] Preferably, a positioning block is provided at the bottom of the bracket body, a positioning groove is formed between two adjacent stator cores, and the positioning block is elastically matched with the positioning groove.

[0019] By adopting the above technical solution, the elastic matching design of the positioning block and the positioning slot provides a precise positioning function for the Hall bracket, so that the Hall bracket can be quickly and accurately positioned to the predetermined position during the installation process, which can improve the assembly efficiency and accuracy of the Hall bracket and the stator core. At the same time, it can enhance the connection stability between the Hall bracket and the stator core, help reduce vibration and noise during the operation of the motor, and improve the overall performance and service life of the motor.

[0020] Preferably, the center of the positioning block coincides with the center of the fixing slot on the bracket body.

[0021] By adopting the above technical solution, after the multiple stator cores are assembled into a circle, the center of the positioning block coincides with the center of the fixing slot, so that the positioning slots formed between the stator cores can be accurately positioned and matched with the positioning blocks, further improving the connection accuracy between the Hall bracket and the stator core and making the force distribution more uniform.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Pass the positioning column through the positioning hole on the Hall plate to achieve precise alignment and stable connection between the Hall bracket and the Hall plate, effectively reducing the loosening or displacement of components during motor operation. The Hall element is assembled with the bracket body, so that the Hall bracket can provide stable support and protection for the Hall element. Compared with the existing technology, the Hall plate and the stator core are connected through the Hall bracket. The connection between the structures is detachable, making the assembly between the structures simpler and easier to operate. It can also be repeatedly disassembled to ensure accuracy, and it is convenient for subsequent maintenance work, which is more in line with production needs.

[0024] 2. The backrest design provides elastic support for the Hall element, allowing the Hall element to be easily snapped into the fixing slot, improving the installation convenience and efficiency of the Hall element;

[0025] 3. The space between the undercut and the fixing groove provides a stable clamping position for the Hall element, ensuring the position stability and reliability of the Hall element after assembly. It can reduce the displacement or falling off of the Hall element due to external force, and help improve the stability of the Hall element output signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the Hall bracket in the embodiment of the present application.

[0027] Figure 2 yes Figure 1 rear view.

[0028] Figure 3 This is a schematic diagram of the coordination of the Hall bracket, Hall plate and stator core in the embodiment of the present application.

[0029] Figure 4 yes Figure 3 Exploded diagram.

[0030] Explanation of the accompanying reference numerals: 1. Positioning column; 2. Bracket body; 21. Fixing groove; 22. Backrest; 23. Through groove; 24. Undercut; 25. Positioning block; 3. Hall plate; 31. Positioning hole; 32. Hall element; 4. Stator core; 41. Positioning groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a Hall effect bracket.

[0033] Reference Figure 1 and Figure 2 A Hall bracket includes a positioning column 1 and a bracket body 2. The positioning column 1 is fixed to the top surface of the bracket body 2. There are multiple positioning columns 1, and the multiple positioning columns 1 are equidistantly distributed. The top of the positioning column 1 is rounded. A positioning hole 31 is opened through the Hall plate 3. The positioning column 1 is adapted to pass through the positioning hole 31. The rounded corners on the positioning column 1 can provide a guide for the matching process, thereby improving the efficiency of the installation of the two. A Hall element 32 is fixed on one side of the Hall plate 3. The Hall element 32 is welded and fixed at the contact position of the Hall plate 3, and the Hall element 32 is assembled with the bracket body 2.

[0034] Specifically, a positioning block 25 is provided at the bottom of the bracket body 2, and a positioning groove 41 is formed between two adjacent stator cores 4 (refer to Figure 3 ), the positioning block 25 and the positioning slot 41 are elastically matched, providing a precise positioning function for the Hall bracket, so that the Hall bracket can be quickly and accurately positioned to the predetermined position during the installation process, which can further enhance the connection stability between the Hall bracket and the stator core 4, help reduce vibration and noise during the operation of the motor, and improve the overall performance and service life of the motor.

[0035] In order to achieve stable installation of the Hall element 32, refer to Figure 1 and Figure 4 A fixing groove 21 is provided on the bracket body 2, and the center of the positioning block 25 coincides with the center of the fixing groove 21 on the bracket body 2. A resilient backrest 22 is vertically installed at a position of the bracket body 2 near the fixing groove 21. A through groove 23 is provided on the backrest 22. A buckle 24 is fixed on one side of the backrest 22 near the fixing groove 21. A space for the Hall element 32 to be engaged is left between the bottom end of the buckle 24 and the bottom of the fixing groove 21. The end of the Hall element 32 away from the Hall plate 3 is inserted into the fixing groove 21, so that the inner top surface of the Hall element 32 abuts against the bottom surface of the buckle 24, and one side wall of the Hall element 32 abuts against the side wall of the buckle 24. At the same time, the pins of the Hall element 32 are soldered and fixed to the Hall plate 3.

[0036] More specifically, the angle between two adjacent fixed slots 21 is A, A=360 / (mp), where m is the number of motor phases and p is the number of motor pole pairs. The angle between two adjacent fixed slots 21 shown in the drawings of this application specification is 30°, which allows the Hall element 32 to be fixed at multiple angles, so that the entire structure remains compact, which helps to improve the control accuracy and response speed of the motor.

[0037] In the present application, the positioning column 1 is passed through the positioning hole 31 on the Hall plate 3 to achieve precise alignment and a firm connection between the Hall bracket and the Hall plate 3; the elastic backrest 22 and the through groove 23 are provided to facilitate the Hall element 32 to be easily snapped into the fixing groove 21; the opening of the fixing groove 21 and the setting of the undercut 24 provide a firm snap-in position for the Hall element 32, ensuring the position stability and reliability of the Hall element 32 after assembly, reducing the displacement or falling off of the Hall element 32 due to external force, reducing the shaking and micro-motion of the Hall element 32 during operation, and providing stable support and protection for the Hall element 32 to a certain extent, effectively improving the stability of the output signal of the Hall element 32.

[0038] Compared with the existing technology, the Hall plate 3 and the stator core 4 are connected through a Hall bracket, and the connection between the structures is detachable, which makes the assembly between the structures simpler and easier to operate. It can also ensure accuracy through repeated disassembly, and facilitates subsequent maintenance work, which is more in line with production needs.

[0039] The above are all preferred embodiments of the present application. These embodiments are only explanations of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be covered within the scope of protection of the present application.

Claims

1. A Hall effect bracket, characterized in that: The invention comprises a positioning column (1) and a bracket body (2), wherein the positioning column (1) is fixed on the top surface of the bracket body (2), a positioning hole (31) is provided through a Hall plate (3), the positioning column (1) is adapted to pass through the positioning hole (31), a Hall element (32) is fixed on one side of the Hall plate (3), and the Hall element (32) is assembled with the bracket body (2).

2. A Hall bracket according to claim 1, characterized in that: A fixing groove (21) is provided on the bracket body (2), one end of the Hall element (32) away from the Hall plate (3) is inserted into the fixing groove (21), and the pins of the Hall element (32) are fixed to the Hall plate (3) by soldering.

3. A Hall bracket according to claim 2, characterized in that: A resilient backrest (22) is vertically mounted on the bracket body (2) at a position close to the fixing groove (21).

4. A Hall bracket according to claim 3, characterized in that: A through slot (23) is formed through the backrest (22).

5. The Hall bracket according to claim 3, characterized in that: An undercut (24) is fixed on one side of the backrest (22) close to the fixing groove (21), and a space for the Hall element (32) to be engaged is reserved between the bottom end of the undercut (24) and the bottom of the fixing groove (21). When the Hall element (32) is inserted into the fixing groove (21), the inner top surface of the Hall element (32) abuts against the bottom surface of the undercut (24), and a side wall of the Hall element (32) abuts against the side wall of the undercut (24).

6. The Hall bracket according to claim 5, characterized in that: The bracket body (2) is provided with a plurality of fixing grooves (21), and the angle between two adjacent fixing grooves (21) is A, where A=360 / (mp), wherein m is the number of motor phases and p is the number of motor pole pairs.

7. The Hall bracket according to claim 2, characterized in that: A positioning block (25) is provided at the bottom of the bracket body (2), a positioning groove (41) is formed between two adjacent stator cores (4), and the positioning block (25) is elastically matched with the positioning groove (41).

8. The Hall effect bracket according to claim 7, characterized in that: The center of the positioning block (25) coincides with the center of the fixing slot (21) on the bracket body (2).

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