Circuit board for driving motion device and device

Abstract

The utility model provides a circuit board and device for driving a motion device, the circuit board comprises a board body, the board body is provided with a first surface and a second surface which are oppositely arranged, and the area of the first surface and / or the area of the second surface are / is between 25 pi mm < 2 > and 100 pi mm < 2 >; the driving chip and the interface module are arranged on the first surface, and the driving chip is used for driving the moving device; and the position detection device is arranged on the second surface, and the position detection device is used for detecting the position of the moving device and outputting a detection signal to the driving chip. According to the application, the miniaturization of the circuit board used for driving the motion device is realized, and the circuit board used for driving the motion device has better heat dissipation performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a circuit board for driving a motion device and the device. BACKGROUND

[0002] In the current field of electronic technology, with the increasing demand for intelligence, portability and integration, miniaturization and light weight of electronic equipment have become an inevitable trend of industry development. However, in this process, the miniaturization process of the circuit board, as an indispensable component of electronic equipment, is facing a series of challenges, becoming one of the key factors restricting the further reduction of the size of the overall device.

[0003] Since the circuit board needs to consider heat dissipation performance while being miniaturized, the current circuit board improves heat dissipation performance by configuring a heat dissipation device or using a substrate with good heat dissipation performance. However, the former increases the components of the electronic equipment, thereby increasing the volume and weight of the equipment, which is not conducive to the miniaturization of electronic equipment; and the latter greatly increases the manufacturing cost of the circuit board. CONTENT OF THE INVENTION

[0004] In order to overcome the defects of the prior art, the present application provides a circuit board for driving a motion device and the device, and the specific technical solutions are as follows:

[0005] A circuit board for driving a motion device and the device, comprising:

[0006] a board body, the board body having a first surface and a second surface arranged oppositely, the area of the first surface and / or the area of the second surface being between 25πmm 2 -100πmm 2 ;

[0007] a driving chip and an interface module, the driving chip and the interface module being arranged on the first surface, the interface module being electrically connected with the driving chip, and the driving chip being used for driving a motion device;

[0008] a position detection device, the position detection device being arranged on the second surface, and the position detection device being used for detecting the position of the motion device and outputting a detection signal to the driving chip.

[0009] In one specific embodiment, the surface of the board body away from the motion device is the first surface, and the surface of the board body close to the motion device is the second surface.

[0010] In one specific embodiment, the surface of the board body away from the motion device is the first surface, and the surface of the board body close to the motion device is the second surface;

[0011] The plate body is provided with a first notch portion and a second notch portion, and the first notch portion and the second notch portion are respectively located on both sides of the plate body axis; the interface module is provided with a wire, one end of the wire is electrically connected with the interface module, and the other end of the wire is electrically connected with the motion device through the first notch portion or the second notch portion.

[0012] In one specific embodiment, the interface module is arranged on the first surface and close to the first notch portion.

[0013] The plate body is provided with two or more electronic components, and the two or more electronic components are arranged on the second surface and close to the second notch portion.

[0014] In one specific embodiment, the plate body is provided with two through hole groups, and the two through hole groups are respectively located on both sides of the plate body axis.

[0015] The through hole group includes a first through hole and a second through hole, the first through hole is used for passing through an external positioning member, and the second through hole is used for passing through an external fastener.

[0016] In one specific embodiment, the line between the first through holes of the two through hole groups intersects the axis of the plate body.

[0017] The line between the second through holes of the two through hole groups intersects the axis of the plate body.

[0018] In one specific embodiment, the position detection device is two, and the two position detection devices are arranged along one radius of the second surface in a radius-symmetric manner.

[0019] Alternatively, the number of position detection devices is three or more, and the three or more position detection devices are arranged in a ring array on the second surface.

[0020] In one specific embodiment, the position detection device includes a Hall element.

[0021] A device includes a housing, a motor, and a circuit board for driving a motion device as described above, the motor and the circuit board for driving a motion device are arranged on the housing.

[0022] The motor includes an output shaft, a stator, and a rotor assembly, the rotor assembly is located in the stator, and the rotor assembly is arranged on the output shaft, the driving chip of the circuit board for driving a motion device is used to drive the rotor assembly to drive the output shaft to rotate relative to the stator, and the position detection device of the circuit board for driving a motion device is used to detect the position of the output shaft and output a detection signal to the driving chip.

[0023] In one embodiment, the rotor assembly includes three or more rotors, which are spaced apart from each other and arranged around the outside of the output shaft.

[0024] In one embodiment, the output shaft overlaps the axis of the plate body.

[0025] The present application has at least the following advantages:

[0026] A circuit board for driving a moving device according to the present application includes a plate body having a first surface and a second surface arranged oppositely, the area of the first surface and / or the area of the second surface being between 25πmm 2 -100πmm 2 ; a driving chip and an interface module arranged on the first surface, the driving chip being used to drive the moving device; and a position detection device arranged on the second surface, the position detection device being used to detect the position of the moving device and output a detection signal to the driving chip.

[0027] A device according to the present application includes a housing, a motor and the circuit board for driving a moving device described above, the motor and the circuit board for driving a moving device being arranged on the housing; the motor includes an output shaft, a stator and a rotor arranged in the stator, the driving chip of the circuit board for driving a moving device being used to drive the rotor assembly to rotate the output shaft relative to the stator, and the position detection device of the circuit board for driving a moving device being used to detect the position of the output shaft and output a detection signal to the driving chip.

[0028] The present application makes the area of the first surface and / or the area of the second surface between 25πmm 2 -100πmm 2 , and arranges the driving chip, the interface module and the position detection device on two opposite surfaces of the plate body. The present application reduces the surface area of the plate body, and ensures that the driving chip, the interface module and the position detection device can be installed on the miniaturized plate body by reasonable planning of the installation positions of the driving chip, the interface module and the position detection device. The driving chip, the interface module and the position detection device are arranged on two opposite surfaces of the plate body, which avoids heat accumulation on the same surface of the plate body, helps to disperse heat and improve heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0030] Figure 1 Structure diagram of a circuit board for driving a moving device provided for the present embodiment Figure 1 ;

[0031] Figure 2 Structure diagram of a circuit board for driving a moving device provided for the present embodiment Figure 2 ;

[0032] Figure 3 Structure diagram of a circuit board for driving a moving device provided for the present embodiment Figure 3 ;

[0033] Figure 4 Structure diagram of a device provided for the present embodiment Figure 1 ;

[0034] Figure 2 Structure diagram of a device provided for the present embodiment Figure 1-3 .

[0035] Reference signs:

[0036] 1 - circuit board for driving a moving device; 11 - board body; 12 - driving chip; 13 - interface module; 14 - position detection device; 111 - first surface; 112 - second surface; 113 - first notch part; 114 - second notch part; 115 - electronic component; 116 - through hole group; 1161 - first through hole; 1162 - second through hole; X - board body axis; Y - radius of the second surface;

[0037] 2 - housing; 21 - positioning member; 22 - fastener;

[0038] 3 - motor; 31 - stator; 32 - rotor; 33 - output shaft. DETAILED DESCRIPTION

[0039] Hereinafter, various embodiments of the present application will be described more fully. The present application can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit various embodiments of the present application to the specific embodiments disclosed herein, but the present application should be construed to cover all adjustments, equivalents and / or alternatives falling within the spirit and scope of various embodiments of the present application.

[0040] In various embodiments of the present application, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all combinations thereof. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0041] The expressions used in the various embodiments of the present application, such as "first", "second", etc., can modify various constituent elements in the various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present application, a first element can be referred to as a second element, and likewise, a second element can also be referred to as a first element.

[0042] In the present application, it is understood by those of ordinary skill in the art that the terms indicating the orientation or positional relationship herein are based on the orientation or positional relationship shown in the drawings, only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the various embodiments of the present application.

[0043] The terms used in the various embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present application belong. The terms such as those defined in a generally used dictionary will be interpreted to have the same meaning as the contextual meaning in the relevant technical field and will not be interpreted to have an idealized meaning or an overly formal meaning, unless clearly defined in the various embodiments of the present application.

[0044] As Figure 1-3 shown, the present embodiment provides a circuit board 1 for driving a motion device, comprising:

[0045] a board body 11, the board body 11 having a first surface 111 and a second surface 112 arranged oppositely, the area of the first surface 111 and / or the area of the second surface 112 being between 25πmm 2 -100πmm 2 ;

[0046] a driving chip 12 and an interface module 13, the driving chip 12 and the interface module 13 being arranged on the first surface 111, the interface module 13 being electrically connected with the driving chip 12, the driving chip 12 being used for driving the motion device;

[0047] a position detection device 14, the position detection device 14 being arranged on the second surface 112, the position detection device 14 being used for detecting the position of the motion device and outputting a detection signal to the driving chip 12.

[0048] In this embodiment, the area of ​​the first surface 111 and / or the area of ​​the second surface 112 are between 25π mm. 2 -100πmm 2 The driver chip 12, interface module 13, and position detection device 14 are respectively disposed on two opposite surfaces of the board 11. This embodiment reduces the surface area of ​​the board 11 while ensuring that the driver chip 12, interface module 13, and position detection device 14 can be mounted on the miniaturized board 11 through reasonable planning of their installation positions. Simultaneously, distributing the driver chip 12, interface module 13, and position detection device 14 on two opposite surfaces of the board 11 avoids heat accumulation on the same surface, helping to disperse heat and improve heat dissipation efficiency.

[0049] Furthermore, in this embodiment, the position of the motion device is fed back to the driving chip 12 through the position detection device 14, so that the driving chip 12 drives the motion device based on the real-time position of the motion device, thereby realizing closed-loop control and improving control accuracy.

[0050] In one embodiment, the first surface 111 and / or the second surface 112 of the plate 11 are circular.

[0051] In one embodiment, the area of ​​the first surface 111 and / or the area of ​​the second surface 112 are between 36π mm. 2 -64πmm 2 between.

[0052] In one embodiment, the motion device includes a motor.

[0053] like Figure 1-3 As shown, in one embodiment, the surface of the plate 11 away from the motion device is the first surface 111; the surface of the plate 11 close to the motion device is the second surface 112.

[0054] In this embodiment, the driving chip 12 is disposed on the first surface 111 of the plate 11 away from the moving device, so that the driving chip 12 is far away from the moving device and the heat generated by the moving device is prevented from spreading to the driving chip 12 and causing the driving chip 12 to overheat and be damaged. At the same time, the position detection device 14 is disposed on the second surface 112 of the plate 11 close to the moving device, so that the position detection device 14 is close to the moving device, thereby reducing measurement errors and improving detection accuracy.

[0055] like Figure 1-3As shown in the drawings, in one embodiment, the outer periphery of the plate body 11 is provided with a first notch portion 113 and a second notch portion 114, which are respectively located on both sides of the plate body axis X.

[0056] The interface module 13 is provided with a wire (not shown in the drawings), one end of which is electrically connected to the interface module 13, and the other end of which is electrically connected to the motion device through the first notch portion 113 or the second notch portion 114.

[0057] The first notch portion 113 and the second notch portion 114 in this embodiment provide space for the wire, further reducing the overall volume when the circuit board 1 for driving the motion device is electrically connected to the motion device. The first notch portion 113 and the second notch portion 114 are provided at the same time, which can promote the air flow on the side of the plate body 11 away from the motion device and on the side of the plate body 11 close to the motion device, thereby accelerating the heat dissipation speed and further improving the heat dissipation efficiency. Moreover, the first notch portion 113 and the second notch portion 114 are respectively located on both sides of the plate body axis X, which can achieve uniform heat dissipation of the circuit board 1 for driving the motion device, thereby improving the stability and reliability of the circuit board 1 for driving the motion device and prolonging the service life.

[0058] As shown in the drawings, Figure 1-5 In one embodiment, the interface module 13 is arranged on the first surface 111 and close to the first notch portion 113.

[0059] The plate body 11 is provided with two or more electronic components 115, which are arranged on the second surface 112 and close to the second notch portion 114.

[0060] This embodiment arranges the interface module 13 on the first surface 111 and close to the first notch portion 113, which helps to shorten the length of the wire and further helps to reduce the required floor space on the first surface 111 when the circuit board 1 for driving the motion device is installed.

[0061] This embodiment arranges two or more electronic components 115 on the second surface 112 and close to the second notch portion 114, which can make full use of the air flow of the second notch portion 114 to carry away the heat generated by the electronic components 115, avoiding heat accumulation and prolonging the service life.

[0062] In one embodiment, the driving chip 12 is located in the middle of the first surface 111.

[0063] In one embodiment, the two or more electronic components 115 are arranged in an array.

[0064] As shown in the drawings, Figure 1-3As shown, in one embodiment, the plate 11 is provided with two through hole groups 116, which are located on both sides of the plate axis X respectively; the through hole group 116 includes a first through hole 1161 and a second through hole 1162, the first through hole 1161 is used to allow the external positioning member 21 to pass through, and the second through hole 1162 is used to allow the external fastener 22 to pass through.

[0065] In this embodiment, when the circuit board 1 for driving the motion device is installed on the electronic device, it cooperates with the positioning member 21 of the electronic device through the first through hole 1161 to achieve rapid positioning of the circuit board 1 for driving the motion device on the electronic device; and after successful positioning, it cooperates with the fastener 22 through the second through hole 1162 to achieve connection between the circuit board 1 for driving the motion device and the electronic device.

[0066] This embodiment reduces the installation difficulty of the circuit board 1 used to drive the motion device and shortens the installation time of the circuit board 1 used to drive the motion device by using the first through hole 1161 and the second through hole 1162.

[0067] like Figure 1-3 As shown, in one embodiment, the line connecting the first through holes 1161 of the two through hole groups 116 intersects the axis of the plate 11; the line connecting the second through holes 1162 of the two through hole groups 116 intersects the axis of the plate 11.

[0068] This embodiment enables the circuit board 1 used to drive the motion device to have a foolproof design, ensuring that the circuit board 1 used to drive the motion device is assembled on the electronic device in a preset installation state, thereby improving assembly efficiency.

[0069] Specifically, the first through hole 1161 is circular, and the line connecting the first through holes 1161 of the two through hole groups 116 refers to the line connecting the centers of the two first through holes 1161.

[0070] Specifically, the second through hole 1162 is circular, and the line connecting the second through holes 1162 of the two through hole groups 116 refers to the line connecting the centers of the two second through holes 1162.

[0071] Specifically, the cross-sectional areas of the first through hole 1161 and the second through hole 1162 are different.

[0072] like Figure 1-5 As shown, in one embodiment, there are two position detection devices 14, which are symmetrically arranged along one radius Y of the second surface. This embodiment, by symmetrically arranging the two position detection devices 14 along one radius of the second surface 112, helps to improve detection accuracy.

[0073] In another embodiment, the number of position detection devices 14 is three or more, and the three or more position detection devices 14 are arranged in a circular array on the second surface 112. This embodiment arranges three or more position detection devices 14 in a circular array on the second surface 112, which helps to improve detection accuracy.

[0074] In one embodiment, the position detection device 14 includes a Hall element.

[0075] like Figure 1-5 As shown, this embodiment also provides a device, including a housing 2, a motor 3, and a circuit board 1 for driving the motion device as described in any of the above embodiments. The motor 3 and the circuit board 1 for driving the motion device are disposed on the housing 2.

[0076] The motor 3 includes an output shaft 33, a stator 31, and a rotor assembly. The rotor assembly is located inside the stator 31 and is mounted on the output shaft 33. The drive chip 12 of the circuit board 1 for driving the motion device is used to drive the rotor assembly to rotate the output shaft 33 relative to the stator 31. The position detection device 14 of the circuit board 1 for driving the motion device is used to detect the position of the output shaft 33 and output a detection signal to the drive chip 12.

[0077] This embodiment reduces the surface area of ​​the board 11 while ensuring that the driver chip 12, interface module 13, and position detection device 14 can be mounted on the miniaturized board 11 through reasonable planning of their installation positions. Simultaneously, by placing the driver chip 12, interface module 13, and position detection device 14 on two opposite surfaces of the board 11, heat is prevented from accumulating on the same surface, thus helping to disperse heat and improve heat dissipation efficiency. Furthermore, this embodiment uses the position detection device 14 to feed back the position of the output shaft 33 to the driver chip 12, enabling the driver chip 12 to drive the rotor assembly based on the real-time position of the output shaft 33, achieving closed-loop control and improving control accuracy.

[0078] like Figure 1-5 As shown, in one embodiment, the rotor assembly includes three or more rotors 32, which are spaced apart from each other and arranged around the outside of the output shaft 33. This embodiment significantly improves the torque output capability of the motor 3 through the combined action of the three or more rotors 32.

[0079] In one embodiment, the rotor assembly includes four or more rotors 32, which are spaced apart from each other and arranged around the outside of the output shaft 33.

[0080] like ​As shown, in one embodiment, the output shaft 33 overlaps with the plate body axis X. This embodiment makes the output shaft 33 overlap with the plate body axis X, which helps to reduce the overall volume of the device, while helping to improve the detection accuracy of the position detection device 14.

[0081] Those skilled in the art can understand that the drawings are only schematic diagrams of a preferred implementation scenario, and the modules or flows in the drawings are not necessarily required for implementing the present application.

[0082] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be changed to be located in one or more devices different from the implementation scenario. The modules of the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0083] The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario.

[0084] The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the implementation scenario. The above-mentioned serial numbers of the present application are only for description, and do not represent the

Claims

1. A circuit board for driving a moving device, characterized by, The application relates to a circuit board for driving a moving device, comprising: a plate body having a first surface and a second surface disposed opposite each other, an area of the first surface and / or an area of the second surface being between 25πmm 2 - 100πmm 2 ; a driving chip and an interface module, which are arranged on a first surface of the circuit board, the interface module being electrically connected to the driving chip, and the driving chip being used for driving the moving device; a position detection device, which is arranged on a second surface of the circuit board and is used for detecting the position of the moving device and outputting a detection signal to the driving chip.

2. The circuit board for driving a moving device according to claim 1, wherein The first surface is the surface of the circuit board far from the moving device, and the second surface is the surface of the circuit board close to the moving device.

3. The circuit board for driving a moving device according to claim 2, wherein The circuit board is provided with a first notch and a second notch on the outer periphery, and the first notch and the second notch are respectively located on the two sides of the axis of the circuit board. The interface module is provided with a wire, one end of the wire being electrically connected to the interface module, and the other end of the wire being electrically connected to the moving device through the first notch or the second notch.

4. The circuit board for driving a moving device according to claim 3, wherein The interface module is arranged on the first surface and close to the first notch. The circuit board is provided with two or more electronic components, and the two or more electronic components are arranged on the second surface and close to the second notch.

5. The circuit board for driving a moving device according to claim 1 or 2, wherein The circuit board is provided with two through hole groups, and the two through hole groups are respectively located on the two sides of the axis of the circuit board. The through hole group comprises a first through hole and a second through hole, the first through hole being used for allowing an external positioning member to pass through, and the second through hole being used for allowing an external fastener to pass through.

6. The circuit board for driving a moving device according to claim 5, wherein The line connecting the first through holes of the two through hole groups intersects with the axis of the circuit board. The line connecting the second through holes of the two through hole groups intersects with the axis of the circuit board.

7. The circuit board for driving a moving device according to claim 1, wherein The position detection device comprises two Hall elements, and the two Hall elements are arranged on the second surface and are radially symmetrical; or the position detection device comprises three or more Hall elements, and the three or more Hall elements are arranged in a ring array on the second surface. The circuit board for driving a moving device is arranged on the housing.

8. An apparatus, comprising: The motor comprises an output shaft, a stator and a rotor assembly, the rotor assembly being located in the stator and being arranged on the output shaft, the driving chip of the circuit board for driving a moving device being used for driving the rotor assembly to drive the output shaft to rotate relative to the stator, and the position detection device of the circuit board for driving a moving device being used for detecting the position of the output shaft and outputting a detection signal to the driving chip. The rotor assembly comprises three or more rotors, and the three or more rotors are arranged on the outer side of the output shaft and are spaced from each other.

9. The apparatus of claim 8, wherein, The output shaft overlaps with the axis of the circuit board.

10. The apparatus of claim 9, wherein, ​

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