Hall effect adjustable structure and brushless sensor motor in RC car model

Abstract

This utility model discloses a Hall effect adjustable structure and a brushless sensor motor for an RC car model, including an induction plate adjustment seat, a fixed bracket, a cover plate, and a Hall plate assembly. The induction plate adjustment seat includes an adjustment base plate and a fixed cylinder, with the fixed cylinder disposed on the adjustment base plate. The adjustment base plate has several arc-shaped slots. The fixed bracket is disposed on one end face of the adjustment base plate. The cover plate is disposed on the end face of the adjustment base plate away from the fixed bracket, and the cover plate also has scale lines. The adjustment base plate has markings that correspond to the scale lines. The Hall plate assembly includes a large PCB board and a small PCB board, with the small PCB board disposed on the large PCB board. The large PCB board is mounted on the adjustment base plate, and the large PCB board has a central through hole. The fixed cylinder passes through the central through hole and abuts against the small PCB board. This utility model, by also providing scale lines on the cover plate and markings on the adjustment base plate that correspond to the scale lines, can effectively and precisely adjust the angle position of the induction plate adjustment seat.

Description

Technical Field

[0001] This utility model relates to the field of motor structure, and in particular to a Hall adjustable structure and a brushless sensor motor for RC car model. Background Technology

[0002] Currently, in the RC car model field, with the expansion of the RC car model enthusiast community and the development of related competitions and activities, its market size has gradually increased year by year. To meet the needs of different RC car model usage scenarios and players, this solution designs a Hall-adjustable structure brushless sensor motor for RC car models, realizing a motor with adjustable parameters (KV value, torque curve) to meet the needs of different scenarios. For example, players who pursue top speed and explosive power can adjust the Hall angle of the motor to make the motor output a higher KV value and output power. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a Hall-controlled adjustable structure and a brushless sensor motor for RC car models.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A Hall-effect adjustable structure for an RC car model includes:

[0006] The sensor plate adjustment base includes an adjustment base plate and a fixed cylinder. The fixed cylinder is disposed on the adjustment base plate. The adjustment base plate has a plurality of arc grooves, which are spaced apart from each other.

[0007] A fixed bracket is disposed on one end face of the adjusting base plate;

[0008] A cover plate is disposed on one end face of the adjusting base plate away from the fixed bracket. The cover plate is also provided with scale lines, and the adjusting base plate is provided with marking symbols that correspond to the scale lines.

[0009] A Hall plate assembly is mounted on the adjustment base plate. The Hall plate assembly includes a large PCB board and a small PCB board. The small PCB board is disposed on the large PCB board. The large PCB board is mounted on the adjustment base plate. A central through hole is formed on the large PCB board. The fixed cylinder passes through the central through hole and abuts against the small PCB board.

[0010] In one embodiment, the Hall-adjustable structure further includes a bearing, and a stepped groove is provided on the fixed cylinder, with the bearing housed in the stepped groove.

[0011] In one embodiment, a limiting boss is provided on the PCB board, and a clearance groove is provided on the adjustment base plate, wherein the limiting boss can be rotatably assembled in the clearance groove.

[0012] In one embodiment, the adjusting base plate has three arc-shaped slots, which are spaced apart from each other.

[0013] The Hall adjustable structure also includes a set of limiting screws, which includes three limiting screws. Each limiting screw passes through the screw hole of the cover plate and is respectively limited to each of the arc grooves.

[0014] In one embodiment, the fixed bracket has a first circular surface, and the induction plate adjustment seat has a second circular surface that mates with the first circular surface, so that the fixed bracket and the induction plate adjustment seat are coaxially assembled.

[0015] In one embodiment, an arc-shaped clearance groove is provided around the outer periphery of the cover plate, and a number of concave and convex groove structures that cooperate with the arc-shaped clearance groove are provided at the corresponding positions around the outer periphery of the sensor plate adjustment seat, so as to increase the contact area between the hand and the sensor plate adjustment seat during manual adjustment.

[0016] In one embodiment, the sensing plate adjustment seat has a square slot, and the Hall plate assembly further includes a vertical Hall socket, which is mounted on the PCB board and passes through the square slot.

[0017] In one embodiment, the central through-hole of the PCB board is fitted over the fixed cylinder to limit the radial position of the Hall plate assembly.

[0018] A brushless sensor motor, comprising the Hall-controlled adjustable structure of the RC car model as described above.

[0019] The advantages and beneficial effects of this utility model compared to the prior art are as follows:

[0020] This utility model relates to a Hall-effect adjustable structure and a brushless sensor motor for RC car models. By setting scale lines on the cover plate and setting markings on the adjustment base plate that correspond to the scale lines, the angle and position of the sensor plate adjustment seat can be accurately adjusted effectively. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the Hall-adjustable structure of an RC car model according to one embodiment of the present invention;

[0022] Figure 2 for Figure 1 The diagram shows the internal structure of the Hall-adjustable structure in the RC car model.

[0023] Figure 3 for Figure 1 The exploded view of the Hall-tunable structure of the RC car model shown.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the Hall plate assembly.

[0025] Figure 5 for Figure 1 The diagram shows the structure of the induction plate adjustment base;

[0026] Figure 6 for Figure 1 The diagram shows the structure of the fixed support.

[0027] Figure 7 for Figure 1 The diagram shows the structure of the cover plate.

[0028] Figure 8 This is a structural diagram of a brushless sensor motor according to an embodiment of the present invention. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] Please see Figures 1-3 A Hall-adjustable structure for an RC car model includes: a sensor plate adjustment seat 100, a fixed bracket 200, a cover plate 300, and a Hall plate assembly 400. It should be noted that the fixed bracket 200 and the cover plate 300 are installed on the front and rear end faces of the sensor plate adjustment seat 100, and the fixed bracket 200 has a clearance position in the middle. The Hall plate assembly 400 is installed in the clearance position between the fixed brackets.

[0031] The induction plate adjustment seat 100 includes an adjustment base plate 110 and a fixed cylinder 120. The fixed cylinder is disposed on the adjustment base plate. The adjustment base plate 110 has a plurality of arc grooves 111, which are spaced apart. It should be noted that the adjustment base plate 110 and the fixed cylinder 120 are integrally formed and can be used to install a fixed bracket 200 and a cover plate 300. The fixed cylinder 120 is used to install bearings, and the Hall plate assembly 400 is sleeved on the fixed cylinder 120 to limit the radial position of the Hall plate assembly.

[0032] The fixed bracket is disposed on one end face of the adjusting base plate; the cover plate is disposed on the end face of the adjusting base plate away from the fixed bracket, and the cover plate 300 is further provided with a scale line 301, and the adjusting base plate 110 is provided with a marking symbol 101 that cooperates with the scale line 301; preferably, the marking symbol 101 is an arrow mark. It should be noted that by providing a scale line on the cover plate and a marking symbol on the adjusting base plate that cooperates with the scale line, the angle position of the induction plate adjusting seat can be effectively and accurately adjusted. When the motor is shipped, there are standard angle requirements, which can be met by pointing the arrow on the induction plate adjusting seat to the corresponding scale on the cover plate.

[0033] Please see Figure 4 The Hall effect plate assembly is mounted on the adjusting base plate. The Hall effect plate assembly 400 includes a large PCB board 410 and a small PCB board 420. The small PCB board is disposed on the large PCB board, which is mounted on the adjusting base plate. The large PCB board has a central through hole, through which the fixing cylinder passes and abuts against the small PCB board. It should be noted that the small PCB board 420 is a Hall effect plate assembly, which is connected to another large PCB board via pin headers. The large PCB board is secured to the sensing plate adjusting seat with screws. The sensing plate adjusting seat is assembled between the fixing bracket and the cover plate and is clamped using screws.

[0034] Please see Figure 3 , Figure 4 and Figure 5 The Hall-effect adjustable structure also includes a bearing 500. A stepped groove is formed on the fixed cylinder, and the bearing is housed in the stepped groove. A limiting boss 411 is provided on the PCB board, and a clearance groove 102 is formed on the adjusting base plate 110. The limiting boss is rotatably mounted within the clearance groove. Thus, the PCB board is designed with a limiting boss 411, and the fixed bracket is designed with a clearance groove 102. During assembly, the limiting boss is mounted within the clearance groove 102, allowing for rotational limitation to prevent excessive rotation and avoid abnormal motor rotation. In this embodiment, the rotatable angle range can be adjusted as needed. The angle scale markings on the cover plate are adjusted synchronously accordingly.

[0035] Please see Figure 3 and Figure 5The adjusting base plate has three arc-shaped slots spaced apart. The Hall-effect adjustable structure also includes a set of limiting screws, each consisting of three limiting screws 600. Each limiting screw passes through a screw hole in the cover plate and is positioned within a corresponding arc-shaped slot. It should be noted that in this embodiment, the motor limit can also be adjusted by the arc size of the arc-shaped slot 103 on the induction plate adjusting seat. The arc-shaped slot 103 on the induction plate adjusting seat can prevent the limiting screws from slipping when the induction plate adjusting seat is rotated, thus achieving adjustable space. Furthermore, the screws are positioned at both ends of the arc-shaped slot, and the angle scale markings on the cover plate are adjusted synchronously accordingly.

[0036] Please see Figure 5 and Figure 6 The fixed bracket 200 has a first circular surface 201, and the induction plate adjusting seat has a second circular surface 104 that mates with the first circular surface 201, so that the fixed bracket and the induction plate adjusting seat are coaxially assembled. Thus, the first circular surface 201 of the fixed bracket and the second circular surface 104 of the induction plate adjusting seat are designed as sliding fit surfaces, ensuring the coaxial assembly of the fixed bracket and the induction plate adjusting seat, limiting the radial position of the Hall sensor, thereby improving the Hall sensor accuracy of the motor and the stability of the motor performance. Furthermore, by designing the assembly of the induction plate adjusting seat and the cover plate, coaxial assembly of the induction plate adjusting seat and the cover plate can be ensured, facilitating assembly and the alignment and identification of arrows and angles.

[0037] Please see Figure 5 and Figure 7 The cover plate 400 has an arc-shaped clearance groove 401 around its outer perimeter. Correspondingly, the outer perimeter of the induction plate adjustment seat has several concave-convex groove structures 105 that mate with the arc-shaped clearance groove, increasing the contact area between the hand and the induction plate adjustment seat during manual adjustment. Thus, the arc-shaped clearance groove on the edge of the motor cover plate and the corresponding circular groove group (i.e., the concave-convex groove structure 105) on the edge of the induction plate adjustment seat increase the contact area between the hand and the induction plate adjustment seat during manual adjustment, making manual adjustment of the induction plate adjustment seat more convenient and effortless.

[0038] Please see Figure 3 The induction board adjustment base has a square slot 106. The Hall plate assembly also includes a vertical Hall socket 402, which is mounted on the PCB board and passes through the square slot. Thus, the induction board adjustment base is designed with a square slot that corresponds to and accommodates the Hall plate socket, enabling the motor to externally connect to the Hall signal line and facilitating foolproof assembly of the Hall plate assembly and the induction board adjustment base.

[0039] In this embodiment, the central through-hole of the PCB board is fitted onto the outside of the fixed cylinder to restrict the radial position of the Hall plate assembly. Thus, the Hall plate assembly and the induction plate adjustment seat are coaxially assembled, facilitating assembly and restricting the radial position of the Hall sensor, thereby improving the Hall sensing accuracy of the motor and the stability of the motor performance. The induction plate adjustment seat is designed with a bearing chamber and is equipped with a bearing. The Hall plate assembly is mainly designed with a shaft, which is located on the inner ring of the bearing.

[0040] The Hall effect sensor assembly is mounted on the induction plate adjusting seat. The Hall effect sensor assembly and the adjusting seat are designed for a sliding fit (with limiting movement), and the vertical Hall effect sensor socket of the Hall effect sensor assembly passes through the square slot (with limiting movement) of the adjusting seat. It is secured to the adjusting seat's screw holes by a set of Hall effect screws passing through the screw through-holes of the Hall effect sensor assembly. The bearing is mounted in the bearing chamber of the adjusting seat. The inner circular surface of the Hall effect sensor assembly is larger than the rear shaft dimension of the rotor. During the assembly of the motor rotor, the rotor shaft passes through and is mounted on the rear bearing.

[0041] The fixed bracket, sensor plate adjustment seat (including Hall plate assembly), and cover plate are coaxially assembled, with the sensor plate adjustment seat positioned between the fixed bracket and the cover plate. Screws pass through the screw holes in the cover plate and the arc groove of the sensor adjustment seat, locking them to the screw assembly on the fixed bracket. The fixed bracket slides against the circular surface of the stator assembly. The fixed bracket and the Hall sensor adjustment seat slide against each other for positioning, with the Hall component's positioning boss fitted within the arc clearance groove of the fixed bracket. The sensor plate adjustment seat and the cover plate slide against each other for positioning. The arrow markings on the sensor adjustment seat align with the default angle scale on the cover plate. A small gap is fitted between the cover plate screws and the screw holes.

[0042] Please see Figure 8 A brushless sensor motor includes a Hall-effect adjustable structure 10 as described above for an RC car model. The rotor assembly is coaxially mounted inside the stator assembly, with both ends of the rotor mounted on the inner rings of end bearings. The front and rear cover assemblies are easily mounted on both ends of the stator assembly and secured using long screws passing through the screw holes in the front cover and locking the stator assembly to the threaded holes in the mounting bracket. The rear cover assembly includes the Hall-effect adjustable structure.

[0043] Adjustable principle: The rear cover assembly is fixed to the bracket by a long screw. When the Hall angle needs to be adjusted, loosen the cover plate screw. Under the action of the screw, the bracket and the cover plate are relatively fixed. The screw passes through the arc groove of the induction plate adjustment seat. By manually rotating the induction plate adjustment seat, the induction plate seat can rotate and move. To adjust the motor performance at different angles, tighten the screw with the arrow on the induction plate adjustment seat pointing to the corresponding scale line on the upper corner of the cover plate. This will adjust the angle range of the Hall plate assembly.

[0044] This motor is a sensor-driven brushless motor. By adjusting the position of the stator winding rotation angle and the Hall element, the instantaneous position of the rotor rotation is sensed at different positions, and the signal is transmitted to the drive device to realize different drive modes. This design provides a high-precision adjustable positioning sensing element and stator winding position structure, which can improve the stability of the motor's adjustable structure and control performance. The structure is compact, ensuring that the motor size meets customer requirements.

[0045] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A Hall-effect adjustable structure for an RC car model, characterized in that, include: The sensor plate adjustment base includes an adjustment base plate and a fixed cylinder. The fixed cylinder is disposed on the adjustment base plate. The adjustment base plate has a plurality of arc grooves, which are spaced apart from each other. A fixed bracket is disposed on one end face of the adjusting base plate; A cover plate is disposed on one end face of the adjusting base plate away from the fixed bracket. The cover plate is also provided with scale lines, and the adjusting base plate is provided with marking symbols that correspond to the scale lines. A Hall plate assembly is mounted on the adjustment base plate. The Hall plate assembly includes a large PCB board and a small PCB board. The small PCB board is disposed on the large PCB board. The large PCB board is mounted on the adjustment base plate. A central through hole is formed on the large PCB board. The fixed cylinder passes through the central through hole and abuts against the small PCB board.

2. The Hall-effect adjustable structure for RC car model according to claim 1, characterized in that, The Hall-adjustable structure also includes a bearing, and a stepped groove is provided on the fixed cylinder, with the bearing housed in the stepped groove.

3. The Hall-adjustable structure for RC car model according to claim 1, characterized in that, The PCB board is provided with a limiting boss, and the adjustment base plate is provided with a clearance groove. The limiting boss can be rotatably assembled into the clearance groove.

4. The Hall-effect adjustable structure for RC car models according to claim 1 or 3, characterized in that, The adjusting base plate has three arc-shaped slots, which are spaced apart from each other. The Hall adjustable structure also includes a set of limiting screws, which includes three limiting screws. Each limiting screw passes through the screw hole of the cover plate and is respectively limited to each of the arc grooves.

5. The Hall-adjustable structure for RC car model according to claim 1, characterized in that, The fixed bracket has a first circular surface, and the induction plate adjustment seat has a second circular surface that mates with the first circular surface, so that the fixed bracket and the induction plate adjustment seat are coaxially assembled.

6. The Hall-adjustable structure for RC car model according to claim 1, characterized in that, The cover plate has an arc-shaped clearance groove around its outer perimeter, and the corresponding position around the outer perimeter of the sensor plate adjustment seat has several concave and convex groove structures that cooperate with the arc-shaped clearance groove, so as to increase the contact area between the hand and the sensor plate adjustment seat during manual adjustment.

7. The Hall-adjustable structure for RC car model according to claim 1, characterized in that, The sensor plate adjustment seat has a square slot, and the Hall plate assembly also includes a vertical Hall socket, which is mounted on the PCB board and passes through the square slot.

8. The Hall-adjustable structure for RC car model according to claim 1, characterized in that, The central through hole of the PCB board is fitted onto the outside of the fixed cylinder to limit the radial position of the Hall plate assembly.

9. A brushless sensor motor, characterized in that, Includes the Hall-adjustable structure of the RC car model as described in any one of claims 1 to 8.

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