Hall assembly for brushless motor

Abstract

The utility model discloses a Hall assembly for a brushless motor, which belongs to the technical field and comprises a motor shell and a Hall element, a circuit board is arranged in the motor shell, a placing plate is arranged below the front surface of the circuit board, the Hall element is clamped in the placing plate, a baffle is arranged in front of the placing plate, and the Hall element is clamped in the placing plate. The baffle plate is fixedly connected in front of the placing plate, the Hall element is clamped in the placing plate, the position of the Hall element is clamped by the clamping block, the Hall element is prevented from falling off during use, the clamping block is pressed, the spring is extruded, the clamping block enters the clamping groove, and the Hall element is taken out from the interior of the placing plate, so that convenience is provided for mounting and dismounting of the Hall element; the protection plate is connected with the Hall elements, the front faces of the Hall elements are prevented from being damaged, the safety performance of the Hall elements is improved, the other set of Hall elements are connected in the standby containing area, the shielding plate is connected with the standby containing area, the other set of Hall elements are fixedly used, and the practicability of the Hall assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field, and in particular relates to a Hall component for a brushless motor. Background Art

[0002] The brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. Since the brushless DC motor is operated in an automatic manner, it does not require an additional starting winding on the rotor like a synchronous motor that starts under heavy load under variable frequency speed regulation, nor does it produce oscillation and loss of step when the load changes suddenly. The permanent magnets of small and medium-capacity brushless DC motors now mostly use rare earth neodymium iron boron (Nd-Fe-B) materials with high magnetic energy levels. Therefore, the volume of the rare earth permanent magnet brushless motor is one frame size smaller than that of the same capacity three-phase asynchronous motor.

[0003] The Hall element is a semiconductor magnetoelectric device that works by using the Hall effect. The Hall element is a magnetic sensor based on the Hall effect. They can detect magnetic fields and their changes and can be used in various occasions related to magnetic fields. Hall elements have many advantages. They have a strong structure, small size, light weight, long life, easy installation, low power consumption, high frequency (up to 1MHZ), vibration resistance, and are not afraid of pollution or corrosion from dust, oil, water vapor, salt spray, etc.

[0004] At present, the Hall element on the brushless motor is directly fixed and embedded in the motor core slot. Once the element is damaged, it is difficult to remove and repair it, which affects the use effect of the brushless motor. For this reason, we propose a Hall component for brushless motor. Utility Model Content

[0005] The purpose of the utility model is to provide a Hall component for a brushless motor to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a Hall component for a brushless motor, comprising a motor housing and a Hall element, a circuit board is provided inside the motor housing, a placement plate is provided below the front of the circuit board, the Hall element is clamped inside the placement plate, a baffle is provided in front of the placement plate, and the baffle is fixedly connected to the front of the placement plate.

[0007] Preferably, the inner walls on the left and right sides of the baffle are provided with card slots, a spring is fixedly connected inside the card slot, a card block is fixedly connected to one side of the spring, and the card block is adapted to the card slot.

[0008] Preferably, a fixing plate is provided behind the Hall element, a groove is provided on the top of the fixing plate, a protective plate is provided inside the groove, a connecting block is provided behind the protective plate, and the protective plate is movably clamped in the groove through the connecting block.

[0009] Preferably, the front side of the protective plate is provided with heat dissipation holes, and the number of the heat dissipation holes is several.

[0010] Preferably, a spare placement area is provided above the front side of the circuit board, a placement groove is provided inside the spare placement area, and a shielding plate is movably connected to the front side of the placement groove.

[0011] Preferably, a limiting rod is provided at the rear of the shielding plate, a limiting hole is provided at the front of the spare placement area, the limiting holes and the limiting rod are four in number and matched, and the shielding plate is movably connected inside the limiting hole through the limiting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. By clamping the Hall element in the placement plate, the clamp block clamps the position of the Hall element to prevent it from falling during use. By pressing the clamp block, the spring is squeezed, the clamp block enters the slot, and the Hall element is taken out from the placement plate, thereby providing convenience for the installation and removal of the Hall element.

[0014] 2. By connecting the protective plate to the Hall element, the front of the Hall element is prevented from being damaged, thereby improving its safety performance. By connecting another group of Hall elements in the spare placement area and connecting the shielding plate to the spare placement area, the other group of Hall elements is fixed for use, thereby improving the practicality of the Hall component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the Hall element and the protective plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the placement plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the split structure of the shielding plate and the spare placement area of ​​the utility model.

[0019] In the figure: 1. Motor housing; 2. Hall element; 3. Circuit board; 4. Placement plate; 5. Block; 6. Slot; 7. Spring; 8. Block; 9. Fixing plate; 10. Groove; 11. Protective plate; 12. Connecting block; 13. Heat dissipation hole; 14. Spare placement area; 15. Placement slot; 16. Shielding plate; 17. Limit rod; 18. Limit hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: it includes a motor housing 1 and a Hall element 2, a circuit board 3 is arranged inside the motor housing 1, a placement plate 4 is arranged below the front of the circuit board 3, the Hall element 2 is clamped inside the placement plate 4, a stopper 5 is arranged in front of the placement plate 4, and the stopper 5 is fixedly connected to the front of the placement plate 4.

[0022] Specifically, the inner walls on the left and right sides of the stopper 5 are provided with a clamping groove 6 , a spring 7 is fixedly connected inside the clamping groove 6 , a clamping block 8 is fixedly connected to one side of the spring 7 , and the clamping block 8 is adapted to the clamping groove 6 .

[0023] Specifically, a fixing plate 9 is provided behind the Hall element 2 , a groove 10 is provided on the top of the fixing plate 9 , a protective plate 11 is provided inside the groove 10 , a connecting block 12 is provided behind the protective plate 11 , and the protective plate 11 is movably connected to the inside of the groove 10 through the connecting block 12 .

[0024] Specifically, the front side of the protection plate 11 is provided with a plurality of heat dissipation holes 13 .

[0025] Specifically, a spare placement area 14 is provided above the front side of the circuit board 3 , a placement groove 15 is provided inside the spare placement area 14 , and a shielding plate 16 is movably connected to the front side of the placement groove 15 .

[0026] Specifically, a limiting rod 17 is provided behind the shielding plate 16, and a limiting hole 18 is provided on the front of the spare placement area 14. The limiting holes 18 and the limiting rod 17 are four in number and matched with each other. The shielding plate 16 is movably connected inside the limiting hole 18 through the limiting rod 17.

[0027] In this embodiment, when the brushless motor is in use, the Hall element 2 is clamped in the placement plate 4 on the front of the circuit board 3, and the position of the Hall element 2 is clamped by the set clamping block 8 to prevent it from falling during use. When it needs to be removed, the spring 7 is squeezed by pressing the clamping block 8, and the clamping block 8 enters the inside of the clamping slot 6 to take the Hall element 2 out from the inside of the placement plate 4, thereby providing convenience for the installation and removal of the Hall element 2. The connecting block 12 on the protective plate 11 is connected to the inside of the groove 10, and the protective plate 11 is connected to the Hall element 2 to prevent the front of the Hall element 2 from being damaged, thereby improving its safety performance. The heat dissipation holes 13 are set to dissipate heat. When one Hall element 2 is not sufficient to support the use of the brushless motor, another group of Hall elements 2 is connected to the placement groove 15 in the spare placement area 14, and the limiting rod 17 on the shielding plate 16 is connected to the limiting hole 18 on the front of the spare placement area 14, so that the other group of Hall elements 2 is fixed for use, thereby improving the practicality of the Hall component.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Hall assembly for a brushless motor, comprising a motor housing (1) and a Hall element (2), characterized in that: A circuit board (3) is provided inside the motor housing (1), a placement plate (4) is provided below the front of the circuit board (3), the Hall element (2) is clamped inside the placement plate (4), a stopper (5) is provided in front of the placement plate (4), and the stopper (5) is fixedly connected in front of the placement plate (4).

2. The Hall assembly for a brushless motor according to claim 1, characterized in that: The inner walls of the left and right sides of the stopper (5) are provided with clamping grooves (6), a spring (7) is fixedly connected inside the clamping groove (6), a clamping block (8) is fixedly connected to one side of the spring (7), and the clamping block (8) is adapted to the clamping groove (6).

3. The Hall assembly for a brushless motor according to claim 1, characterized in that: A fixing plate (9) is provided at the rear of the Hall element (2), a groove (10) is provided at the top of the fixing plate (9), a protective plate (11) is provided inside the groove (10), a connecting block (12) is provided at the rear of the protective plate (11), and the protective plate (11) is movably clamped inside the groove (10) via the connecting block (12).

4. The Hall assembly for a brushless motor according to claim 3, characterized in that: The front side of the protection plate (11) is provided with heat dissipation holes (13), and the number of the heat dissipation holes (13) is several.

5. The Hall assembly for a brushless motor according to claim 1, characterized in that: A spare placement area (14) is provided above the front side of the circuit board (3), a placement groove (15) is provided inside the spare placement area (14), and a shielding plate (16) is movably connected to the front side of the placement groove (15).

6. The Hall assembly for a brushless motor according to claim 5, characterized in that: A limiting rod (17) is provided at the rear of the shielding plate (16), and a limiting hole (18) is provided at the front of the standby placement area (14). The limiting holes (18) and the limiting rod (17) are both four in number and are compatible with each other. The shielding plate (16) is movably connected to the inside of the limiting hole (18) via the limiting rod (17).

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