Brushless motor capable of correcting fixed entrance angle
By designing an adjustable Hall plate position in the brushless motor, the problems of high production difficulty and high maintenance cost of brushless sensor-controlled fixed advance angle motors are solved, enabling flexible adjustment of the motor's advance angle and improving production efficiency.
Patent Information
- Application Number
- CN202422977993.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing brushless, sensor-driven, fixed-angle, non-adjustable motors are difficult to manufacture, have high defect rates, high maintenance costs, and are difficult to mass-produce.
Design a brushless motor with adjustable fixed advance angle. By setting a locking hole on the outer wall of the housing, the adjustment component includes a rotor, a rear end cover, an inner pressure ring, a Hall plate, and a locking component. The angle adjustment of the Hall plate relative to the stator is achieved by using the screw connection between the locking component and the screw hole.
This technology enables adjustable correction of the motor's fixed advance angle, avoiding rework by replacing the Hall plate assembly, reducing maintenance costs, and improving production efficiency.
Smart Images
Figure CN223567496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motors, and in particular to a brushless motor with adjustable fixed advance angle. Background Technology
[0002] With global economic development and rising living standards, the RC model car market will continue its growth trend. Brushless motors, serving as the power system for RC models and providing driving power, are experiencing a rapid increase in market demand. To adapt to various road conditions, RC models are placing increasingly stringent requirements on the motors themselves; for example, the demand for motors with a fixed, non-adjustable advance angle is growing.
[0003] However, the production of current brushless, sensor-controlled, fixed-angle, non-adjustable advance brushless motors is quite difficult due to their high defect rate. When a defect occurs, repairs primarily involve replacing Hall plate assemblies with Hall elements installed at different angles, resulting in excessively high repair costs and hindering mass production. Therefore, to address the issue of requiring replacement of Hall plate assemblies upon failure, this application proposes a calibrable fixed-angle brushless motor. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a brushless motor with a calibrable fixed advance angle that is easy to adjust the angle of the Hall element.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A brushless motor with adjustable fixed advance angle, comprising:
[0007] A housing, wherein a stator component is disposed within the housing, and a plurality of locking holes are provided on the outer side wall of the housing; and
[0008] An adjustment assembly includes a rotor component, a rear end cover, an inner pressure ring, a Hall plate, and several locking components. The Hall plate is disposed on the rear end cover, which has several adjustment holes. The inner pressure ring has several screw holes and is disposed on the inner sidewall of the rear end cover so that each screw hole is aligned with each adjustment hole. Each locking component passes through each adjustment hole and is screwed into each screw hole, so that both ends of the rotor component are rotatably connected to the housing and the rear end cover, and that the rear end cover can drive the Hall plate to rotate relative to the stator component.
[0009] Optionally, the lock hole, the adjustment hole, and the screw hole are all provided in three parts.
[0010] Optionally, the Hall plate comprises a circuit board and a plurality of Hall elements, the circuit board is provided with an inner circular hole, each Hall element is arranged outside the inner circular hole, and the rotor member is used for penetrating through the inner circular hole.
[0011] Optionally, the shell is further provided with a plate cover at the opening of one end close to the rear end cover, and the plate cover is in abutment with the circuit board.
[0012] Optionally, the plate cover is provided with a mark groove, and the circuit board is provided with a mark convex edge, and the mark convex edge is arranged opposite to the mark groove.
[0013] Optionally, the adjusting hole is a waist-shaped hole.
[0014] Optionally, the inner side wall of the rear end cover is provided with a clamping convex platform, and the clamping convex platform is used for clamping the inner pressure ring.
[0015] Optionally, the clamping convex platform is provided with two clamping convex platforms, and the two clamping convex platforms are provided with a spacing.
[0016] Optionally, the outer side wall of the inner pressure ring is provided with an empty slot, and the empty slot is used for avoiding one of the clamping convex platforms, so that the outer side wall of the inner pressure ring is adaptively attached to the inner side wall of the rear end cover.
[0017] Optionally, the shell is provided with a bearing on the end away from the rear end cover and on the rear end cover respectively, and the two ends of the rotor member are respectively provided with two bearings.
[0018] Compared with the prior art, the utility model has at least the following advantages:
[0019] The utility model discloses a correctable fixed angle of advance brushless motor, including casing and adjusting assembly, be provided with stator piece in the casing, the outside wall of casing is set up with a plurality of lock hole, adjusting assembly includes rotor piece, rear end cover, inner pressure ring, hall board and a plurality of locking piece, hall board sets up on rear end cover, is set up with a plurality of adjusting hole on rear end cover, is set up with a plurality of screw hole on inner pressure ring, and inner pressure ring sets up on the inner side wall of rear end cover to make each screw hole respectively with each adjusting hole alignment, each locking piece is used to respectively pass each adjusting hole and is screwed in each screw hole to make the both ends of rotor piece respectively with casing and rear end cover rotation connection, and make rear end cover can drive hall board relative to stator piece rotation. Thus, when locking piece and screw hole are screwed, make rear end cover and casing be in pre-tightening state. When needing to adjust the fixed angle of advance motor, that is, change the position between hall element and stator piece, only need to slightly loosen locking piece, at this time, locking piece keeps casing and inner pressure ring connected to the relatively fixed state, at this time, when a certain torsion is applied to rear end cover, rear end cover can drive hall board to rotate a certain angle, so that the fixed angle of advance motor can be adjusted and corrected. Compared with the existing need to replace the hall element installation position different hall board mode, can avoid the rework replacement process. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, should understand, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0021] Figure 1 It is the structure schematic diagram of the correctable fixed angle of advance brushless motor of an embodiment of the utility model;
[0022] Figure 2 It is the structure schematic diagram of the correctable fixed angle of advance brushless motor of an embodiment of the utility model; Figure 1
[0023] Figure 3 It is the structure schematic diagram of the casing of an embodiment of the utility model;
[0024] Figure 4 It is the partial structure schematic diagram of adjusting assembly of an embodiment of the utility model;
[0025] Figure 5 It is the partial structure schematic diagram of adjusting assembly of an embodiment of the utility model; Figure 4
[0026] Figure 6 Structure diagram of the inner pressure ring of an embodiment of the present application.
[0027] Figure 7 Structure diagram of the Hall plate of an embodiment of the present application.
[0028] Explanation of reference signs:
[0029] 10, correctable fixed angle brushless motor;100, shell;200, adjusting assembly;300, stator;110, lock hole;210, rotor;220, rear end cover;230, inner pressure ring;240, Hall plate;250, locking part;221, adjusting hole;231, screw hole;241, circuit board;242, Hall element;2411, inner hole;400, cover;410, mark groove;2412, mark convex edge;260, clamping convex;232, clearance groove;500, bearing. DETAILED DESCRIPTION
[0030] The embodiments of the present application will be described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.
[0031] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0032] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0033] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings.
[0035] As shown in Figures 1 to 5 A correctable fixed-in-angle brushless motor 10, comprising a shell 100 and an adjusting assembly 200, the shell 100 is provided with a stator 300, a plurality of lock holes 110 are formed on the outer side wall of the shell 100, the adjusting assembly 200 comprises a rotor 210, a rear end cover 220, an inner pressure ring 230, a Hall plate 240 and a plurality of locking members 250, the Hall plate 240 is arranged on the rear end cover 220, a plurality of adjusting holes 221 are formed on the rear end cover 220, a plurality of screw holes 231 are formed on the inner pressure ring 230, the inner pressure ring 230 is arranged on the inner side wall of the rear end cover 220, so that each screw hole 231 is aligned with each adjusting hole 221, each locking member 250 is used for penetrating through each adjusting hole 221 and being screwed into each screw hole 231, so that the two ends of the rotor 210 are rotatably connected with the shell 100 and the rear end cover 220 respectively, and the rear end cover 220 can drive the Hall plate 240 to rotate relative to the stator 300.
[0036] It should be noted that the stator 300 is installed on the inner side wall of the shell 100, wherein the stator 300 is composed of a plurality of windings, and the stator 300 is used to form a rotating electromagnetic field. Further, the shell 100 is an open structure with one end face only allowing the rotor 210 to pass through, and the other end face is open. The rotor 210 is composed of a rotating shaft and a permanent magnet structure arranged on the rotating shaft, so that the rotating magnetic field formed by the stator 300 continuously rotates the rotor 210. Further, one end of the rotor 210 is rotationally connected by passing through one end face of the shell 100, and the other end of the rotor 210 is rotationally connected with the rear cover 220. Specifically, the Hall plate 240 is fixedly installed on the rear cover 220, for example, the Hall plate 240 is installed on the rear cover 220 by screws, and the rotor 210 passes through the Hall plate 240 to be rotationally connected with the rear cover 220. Further, the inner pressure ring 230 is attached to the inner side wall of the rear cover 220, a plurality of lock holes 110 are formed on the outer side wall of the shell 100, a plurality of adjustment holes 221 are formed on the rear cover 220, and a plurality of screw holes 231 are formed on the inner pressure ring 230. In this way, each locking member 250 is sequentially inserted through the lock hole 110, the adjustment hole 221, and then screwed with the screw hole 231. In this way, when the locking member 250 is screwed with the screw hole 231, the rear cover 220 and the shell 100 are in a pre-tightening state. When it is necessary to adjust the fixed angle of the motor, that is, to change the position between the Hall element and the stator 300, the locking member 250 is slightly loosened, and the locking member 250 keeps the shell 100 and the inner pressure ring 230 connected in a relatively fixed state. At this time, when a certain torsion is applied to the rear cover 220, the rear cover 220 can drive the Hall plate 240 to rotate by a certain angle, so that the Hall plate 240 drives the Hall element to rotate relative to the stator 300 by a certain angle, so that the fixed angle of the motor can be adjusted and corrected. Compared with the existing method of replacing the Hall plate 240 with different Hall element installation positions, the process of rework replacement can be avoided.
[0037] As shown in Figure 5 , in an embodiment, the lock hole 110, the adjustment hole 221, and the screw hole 231 are all provided with three. In this way, the rear cover 220 can be reliably fixed on the shell 100.
[0038] As shown in Figure 5 , in an embodiment, the Hall plate 240 includes a circuit board 241 and a plurality of Hall elements 242, the circuit board 241 is provided with an inner circular hole 2411, and each Hall element 242 is arranged outside the inner circular hole 2411, and the rotor 210 is used to pass through the inner circular hole 2411.
[0039] It should be noted that the Hall element 242 is installed around the inner circular hole 2411 of the circuit board 241, for example, the Hall element 242 is provided with three, so that the rotation speed of the rotor member 210 can be detected by the Hall element 242.
[0040] As shown in Figure 1 and Figure 6 , in an embodiment, the shell 100 is provided with a plate cover 400 near the opening of one end of the rear end cover 220, and the plate cover 400 abuts against the circuit board 241.
[0041] In this way, the plate cover 400 abuts against the circuit board 241, eliminating the gap between the shell 100 and the circuit board 241. In an embodiment, the plate cover 400 is a plastic structure.
[0042] As shown in Figure 1 , Figure 6 and Figure 7 , in an embodiment, the plate cover 400 is provided with a mark groove 410, and the circuit board 241 is provided with a mark protrusion 2412, and the mark protrusion 2412 is arranged opposite to the mark groove 410.
[0043] It should be noted that when the rear end cover 220 is subjected to a torsional force to adjust the position of the Hall element 242 relative to the stator member 300, it is equivalent to the mark protrusion 2412 relative to the mark groove 410 is displaced, thereby facilitating adjustment and correction.
[0044] As shown in Figure 5 , in an embodiment, the adjusting hole 221 is a waist-shaped hole. In this way, the locking member 250 passes through the waist-shaped hole, ensuring that the rear end cover 220 can be twisted at a certain angle relative to the shell 100. In an embodiment, the locking member 250 is a screw.
[0045] As shown in Figure 4 and Figure 5 , in an embodiment, the inner side wall of the rear end cover 220 is provided with a clamping protrusion 260, and the clamping protrusion 260 is used to clamp the inner pressure ring 230.
[0046] It should be noted that the clamping protrusion 260 clamps the inner pressure ring 230, so that the inner pressure ring 230 can only be attached to the inner side wall of the rear end cover 220 and can rotate relative to the rear end cover 220, thereby facilitating the assembly of the inner pressure ring 230 in the rear end cover 220 to form a rear cover assembly, thereby facilitating the subsequent assembly of the rear end cover 220 on the shell 100 by the locking member 250.
[0047] As shown in Figure 4 , in an embodiment, the clamping protrusion 260 is provided with two, and the two clamping protrusions 260 are provided with a spacing.
[0048] It should be noted that by setting two clamping bosses 260 to clamp and fix the inner pressure ring 230, the inner pressure ring 230 can be reliably fixed on the inner side wall of the rear end cover 220 and is not easy to fall off.
[0049] As shown in Figure 5 In an embodiment, an empty slot 232 is formed on the outer side wall of the inner pressure ring 230, and the empty slot 232 is used to avoid one of the clamping bosses 260, so that the outer side wall of the inner pressure ring 230 is adaptively attached to the inner side wall of the rear end cover 220.
[0050] It should be noted that in order to make the inner pressure ring 230 be installed on the inner side wall of the rear end cover 220 without deformation, the empty slot 232 is formed on the inner pressure ring 230, so that the empty slot 232 avoids one of the clamping bosses 260, thereby making the inner pressure ring 230 be reliably and stably installed on the inner side wall of the rear end cover 220.
[0051] As shown in Figure 2 In an embodiment, a bearing 500 is arranged on one end of the casing 100 away from the rear end cover 220 and on the rear end cover 220, and the two ends of the rotor member 210 are respectively arranged through the two bearings 500.
[0052] It should be noted that by arranging the bearings 500 on the casing 100 and the rear end cover 220, the two ends of the rotor member 210 are arranged through the two bearings 500, so that the rotor member 210 can be stably rotated relative to the casing 100.
[0053] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A correctable fixed-advance-angle brushless motor, characterized by, The utility model relates to a kind of motor, including: Casing, stator element is arranged in the casing, a plurality of lock holes are opened on the outer side wall of the casing; And Adjusting assembly, the adjusting assembly includes rotor element, rear end cover, inner pressure ring, hall plate and a plurality of locking pieces, the hall plate is arranged on the rear end cover, a plurality of adjusting holes are opened on the rear end cover, a plurality of screw holes are opened on the inner pressure ring, the inner pressure ring is arranged on the inner side wall of the rear end cover, so that each screw hole is respectively aligned with each adjusting hole, each locking piece is used to be respectively threaded through each adjusting hole and be screwed in each screw hole, so that the two ends of the rotor element are respectively connected with the casing and the rear end cover rotationally, and the rear end cover can drive the hall plate to rotate relative to the stator element.
2. The correctable fixed-advance-angle brushless motor of claim 1, wherein, The lock hole, the adjusting hole and the screw hole are all set to three.
3. The correctable fixed-advance-angle brushless motor of claim 1, wherein, The hall plate includes circuit board and a plurality of hall elements, an inner circular hole is opened on the circuit board, each hall element is arranged around the outer side of the inner circular hole, and the rotor element is used to pass through the inner circular hole.
4. The correctable fixed-advance-angle brushless motor of claim 3, wherein, The casing is also provided with a plate cover at the opening of one end close to the rear end cover, and the plate cover abuts against the circuit board.
5. The correctable fixed-advance-angle brushless motor of claim 4, wherein, A mark groove is opened on the plate cover, and a mark convex edge is arranged on the circuit board, and the mark convex edge is arranged opposite to the mark groove.
6. The correctable fixed-lead-angle brushless motor of claim 1, wherein, The adjusting hole is a waist-shaped hole.
7. The correctable fixed-lead-angle brushless motor of claim 1, wherein, A clamping boss is arranged on the inner side wall of the rear end cover, and the clamping boss is used to clamp the inner pressure ring.
8. The correctable fixed-lead-angle brushless motor according to claim 7, characterized in that, The clamping boss is provided with two, and a space is arranged between the two clamping bosses.
9. The correctable fixed-advance-angle brushless motor of claim 8, wherein, An emptying groove is opened on the outer side wall of the inner pressure ring, and the emptying groove is used to avoid one of the clamping bosses, so that the outer side wall of the inner pressure ring is adaptively fitted on the inner side wall of the rear end cover.
10. The correctable fixed-lead-angle brushless motor of claim 1, wherein, A bearing is respectively arranged on the casing away from the rear end cover and the rear end cover, and the two ends of the rotor element are respectively threaded through the two bearings.