Steering engine with high heat dissipation performance and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of steering engines, and particularly discloses a high-heat-dissipation steering engine and electronic equipment, the high-heat-dissipation steering engine comprises a shell, a driving mechanism, an angle detection mechanism, a circuit board and a heat dissipation assembly, the shell is provided with an accommodating cavity and a through hole, and the accommodating cavity is communicated with the outside through the through hole; the driving mechanism is arranged in the accommodating cavity, and an output shaft of the driving mechanism extends out of the shell from the through hole; the angle detection mechanism is arranged in the accommodating cavity, and the angle detection mechanism is used for detecting the rotation angle of the output shaft; the circuit board is arranged in the accommodating cavity, and the circuit board is connected with the angle detection mechanism and the driving mechanism; the heat dissipation assembly is located in the containing cavity and attached to the driving mechanism. By means of the mode, transmission and dissipation of heat generated by the driving mechanism can be accelerated through the heat dissipation assembly, so that the temperature of the driving mechanism is reduced in time, and the working stability of the steering engine is guaranteed.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of steering gears, and in particular to a steering gear and electronic equipment with high heat dissipation. Background Art

[0002] As a position (angle) servo drive, a servo is suitable for control systems that require continuous and maintained angle changes. It consists of a housing, motor, reduction gear set, sensor, and control circuitry, forming an automatic control device. Its operating principle is that the control circuit receives sensor signals and, after applying complex algorithms to them, controls the motor's speed and direction, achieving the desired angle. Servos are used in a variety of applications, including marine, aerospace, drones, industrial automation, and electronic toys. They are key components for achieving flexible movement and precise control of equipment.

[0003] In the process of realizing the present invention, the inventors of the present invention found that: at present, the heat dissipation of the motor in the steering gear mainly relies on the heat radiation from the motor housing to the surrounding air. When working for a long time or under a large load, the motor will generate obvious heat. The heat dissipation method that simply relies on the heat radiation from the housing is inefficient. The heat generated by the motor is difficult to be transferred to the outside world in time, thereby affecting the working stability of the motor and further affecting the working performance of the steering gear. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide a high-heat-dissipating steering gear and electronic equipment, which can promptly dissipate and transfer the heat generated by the steering gear during operation.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a high-heat dissipation servo, including: a shell, provided with a accommodating cavity and a through hole, the through hole connecting the accommodating cavity with the outside world; a driving mechanism, arranged in the accommodating cavity, and the output shaft of the driving mechanism extends out of the shell from the through hole; an angle detection mechanism, arranged in the accommodating cavity, and the angle detection mechanism is used to detect the rotation angle of the output shaft; a circuit board, arranged in the accommodating cavity, and the circuit board is connected to the angle detection mechanism and the driving mechanism; a heat dissipation component, located in the accommodating cavity, and the heat dissipation component is attached to the driving mechanism.

[0006] Optionally, the driving mechanism includes a motor and a reduction assembly, the motor is connected to the reduction assembly, and the output shaft is arranged on the reduction assembly; the heat dissipation assembly includes a heat-conducting side plate, and the heat-conducting side plate is attached to the outer wall of the motor housing.

[0007] Optionally, the number of the outer side wall of the motor housing and the number of the heat-conducting side plates are both four, and one heat-conducting side plate is attached to one outer side wall.

[0008] Optionally, heat-conducting gel is filled between the heat-conducting side plate and the outer side wall of the motor housing.

[0009] Optionally, a plurality of heat dissipation fins extend from the heat dissipation side plate along a direction where the heat dissipation side plate approaches the inner side wall of the shell, and the plurality of heat dissipation fins are arranged at intervals.

[0010] Optionally, the inner side wall of the shell is provided with a plurality of slots, and one of the heat dissipation fins is plugged into one of the slots.

[0011] Optionally, the heat dissipation assembly also includes a heat-conducting base plate, and the heat-conducting base plate and the heat-conducting side plate enclose a receiving groove, the motor is received in the receiving groove, and the inner side wall of the receiving groove is in contact with the outer side wall of the motor's outer casing, and the inner bottom wall of the receiving groove is in contact with the bottom wall of the motor's outer casing.

[0012] Optionally, the shell includes an upper shell, a lower shell and a sealing gasket, the upper shell and the lower shell are detachably fixed, the upper shell and the lower shell jointly enclose the accommodating cavity, and the sealing gasket is arranged at the joint between the upper shell and the lower shell.

[0013] Optionally, the shell includes an inner bottom wall, and the circuit board is arranged on the inner bottom wall; the servo also includes thermal conductive glue, and the thermal conductive glue is located between the inner bottom wall and the circuit board.

[0014] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide an electronic device including the above high heat dissipation servo.

[0015] The beneficial effects of the embodiments of the present invention are as follows: different from the prior art, the embodiments of the present invention provide a high-heat dissipation servo, comprising: a shell, a driving mechanism, an angle detection mechanism, a circuit board and a heat dissipation assembly; wherein the shell is provided with a receiving cavity and a through hole, and the through hole connects the receiving cavity with the outside world; the driving mechanism is arranged in the receiving cavity, and the output shaft of the driving mechanism extends out of the shell from the through hole so that the driving shaft can be connected to an external device; the angle detection mechanism is arranged in the receiving cavity, and the angle detection mechanism is used to detect the rotation angle of the output shaft and generate corresponding detection data; the circuit board is arranged in the receiving cavity, and the circuit board is connected to the angle detection mechanism and the driving mechanism, and the circuit board can receive the detection data generated by the angle detection mechanism, and control the movement of the driving mechanism according to the detection data, thereby meeting the working requirements of the servo in the current state, and the heat dissipation assembly is located in the receiving cavity, and the heat dissipation assembly is attached to the driving mechanism. Through the above structure, by utilizing the setting of the heat dissipation component, the heat generated inside the servo due to the operation of the drive mechanism is accelerated to transfer and dissipate heat under the action of the heat dissipation component, so that the drive mechanism can maintain operation at a lower temperature, thereby ensuring the working stability of the servo. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative work.

[0017] Figure 1 This is an exploded schematic diagram of a high-heat-dissipating servo provided by an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of a high-heat-dissipating servo provided by an embodiment of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of a motor for a high-heat-dissipating servo provided by an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of a high-heat-dissipating servo provided by an embodiment of the present utility model;

[0021] Reference numerals:

[0022] 1000, servo;

[0023] 1. Housing; 11. Accommodating cavity; 12. Through hole; 13. Slot; 14. Sealing gasket; 1a. Upper housing; 1b. Lower housing;

[0024] 2. Driving mechanism; 21. Motor; 22. Speed ​​reduction assembly;

[0025] 3. Angle detection mechanism;

[0026] 4. Circuit board;

[0027] 5. Heat dissipation assembly; 51. Heat-conducting side panels; 52. Heat-conducting gel; 53. Heat dissipation fins; 54. Heat-conducting bottom plate; DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification and in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0030] Due to their different structures and layouts of internal components, servos have formed a variety of servos that can achieve unique functions, such as high-heat dissipation servos, servos with waterproof casings, servos with ventilation ducts, etc. For the sake of convenience of description, the servos with high heat dissipation will be referred to as servos in the following text of this application.

[0031] See also Figure 1 and Figure 2The servo 1000 includes: a housing 1, a drive mechanism 2, an angle detection mechanism 3, a circuit board 4 and a heat dissipation component 5, wherein the housing 1 is provided with a housing cavity 11 and a through hole 12, the through hole 12 connects the housing cavity 11 with the outside, and the through hole 12 facilitates the output shaft of the drive mechanism 2 to extend through the through hole 12; the drive mechanism 2 is arranged in the housing cavity 11, and the output shaft of the drive mechanism 2 extends out of the housing 1 through the through hole 12; the angle detection mechanism 3 is arranged in the housing cavity 11, and the angle detection mechanism 3 is used to detect the rotation angle of the output shaft and generate corresponding detection data to be fed back to an external device or the circuit board 4; the circuit board 4 is arranged in the housing cavity 11. The circuit board 4 is connected to the angle detection mechanism 3 and the drive mechanism 2. The circuit board 4 is used to control the operation of the angle detection mechanism 3 and the drive mechanism 2, for example, controlling the detection duration and detection frequency of the angle detection mechanism 3, and controlling the output power and operating time of the drive mechanism 2. The circuit board 4 can also perform relevant algorithm processing based on the detection signal transmitted by an external device or the detection signal directly fed back by the angle detection mechanism 3, thereby forming an appropriate control program to control the drive mechanism 2 so that the servo 1000 meets the current operating requirements. The heat dissipation component 5 is located in the accommodating cavity 11 and is attached to the drive mechanism 2. The addition of the heat dissipation component 5 accelerates the transfer and dissipation of heat generated by the drive mechanism 2, thereby timely reducing the temperature of the drive mechanism 2 and ensuring the stability of the servo 1000.

[0032] It can be understood that the heat dissipation component 5 is added to accelerate the heat dissipation of the drive mechanism 2. Therefore, the ways in which the heat dissipation component 5 improves the drive mechanism 2 include but are not limited to: accelerating the air flow on the surface of the drive mechanism 2, increasing the surface area of ​​the drive mechanism 2, and providing a cold source for the drive mechanism 2. In this embodiment, it is preferred to increase the surface area of ​​the drive mechanism 2 to dissipate heat for the drive mechanism 2.

[0033] For the above-mentioned drive mechanism 2, please refer to Figure 1 and Figure 3 The driving mechanism 2 includes a motor 21 and a reduction assembly 22. The motor 21 is connected to the reduction assembly 22, and the output shaft is set in the reduction assembly 22. The reduction mechanism is used to reduce the speed of the output shaft to meet the speed requirement of the external equipment connected to the servo 1000; the heat dissipation assembly 5 includes a heat-conducting side plate 51, which is attached to the outer wall of the outer shell of the motor 21. The heat-conducting side plate 51 is in direct contact with the outer shell of the motor 21, so that the heat of the motor 21 can be transferred to the heat-conducting side plate 51 through the outer shell, thereby increasing the heat dissipation area of ​​the outer shell of the motor 21, thereby accelerating the dissipation of heat from the motor 21.

[0034] As will be appreciated, to maximize the heat dissipation capability of the heat dissipation assembly 5 for the motor 21, the motor 21 housing has four outer side walls and four heat-conducting side plates 51, with one heat-conducting side plate 51 attached to each outer side wall. This creates a wide-area heat dissipation structure for the motor 21. The excellent thermal conductivity of the heat-conducting side plates 51 facilitates the transfer of heat generated by the motor 21 during operation to the heat-conducting side plates 51, thereby improving the heat dissipation efficiency of the motor 21, reducing heat loss in the motor 21, and thus enhancing the energy conversion efficiency of the motor 21, thereby ensuring the operational stability of the servo 1000.

[0035] In some embodiments, there are two heat-conducting side plates 51, one heat-conducting side plate 51 is attached to the outer side wall of the outer shell of the motor 21, and the other heat-conducting side plate 51 is attached to the other outer side wall of the outer shell of the motor 21, and the above-mentioned outer side wall is arranged opposite to the other outer side wall to ensure that the heat dissipation capacity of the heat-conducting side plate 51 is maximized when two heat-conducting side plates 51 are used.

[0036] It should be noted that the material of the heat-conducting side plate 51 needs to have high thermal conductivity. Therefore, the material of the heat-conducting side plate 51 includes but is not limited to: copper, silver, graphite, graphene and carbon fiber, or a combination of any two or two of the above materials. In this embodiment, the preferred material of the heat-conducting side plate 51 is copper, which is relatively cheap and is conducive to mass production.

[0037] In some embodiments, see Figure 3 A heat-conducting gel 52 is filled between a heat-conducting side plate 51 and the outer wall of the motor 21 housing. The high thermal conductivity of the heat-conducting gel 52 allows for rapid heat transfer. The adhesive properties of the heat-conducting gel 52 secure the heat-conducting side plate 51 to the outer wall of the motor 21 housing. The heat-conducting gel 52 also has excellent self-leveling properties, allowing it to easily flow between the heat-conducting side plate 51 and the outer wall of the motor 21 housing, ensuring a sufficient connection between the heat-conducting side plate 51 and the motor 21, thereby ensuring timely heat transfer.

[0038] Furthermore, a plurality of heat dissipation fins 53 extend from the heat-conducting side plate 51 in a direction close to the inner side wall of the housing 1. The plurality of heat dissipation fins 53 are arranged at intervals. The presence of the plurality of heat dissipation fins 53 further increases the heat dissipation area of ​​the heat-conducting side plate 51, that is, increases the heat exchange area with the surrounding environment, thereby improving the heat exchange efficiency between the heat-conducting side plate 51 and the surrounding air or objects, thereby effectively reducing the temperature of the motor 21 and increasing the service life of the motor 21.

[0039] It can be understood that the extension length of the heat dissipation fins 53 in the direction along the inner side wall of the heat-conducting side plate 51 close to the shell 1 can be extended only partially, so that the end thereof is away from the motor 21 and suspended in the space around the motor 21, thereby relying on the heat dissipation fins 53 to dissipate heat from the surrounding air; or the heat dissipation fins 53 can be extended in the direction along the inner side wall of the heat-conducting side plate 51 close to the shell 1 to contact other components, thereby transferring heat to other components, so that the heat dissipation fins 53 can dissipate heat from the surrounding air while also transferring the heat generated by the motor 21 to other components through direct contact, thereby improving the heat dissipation efficiency of the heat dissipation fins 53.

[0040] In some embodiments, see Figure 4 The inner wall of the shell 1 is provided with a plurality of slots 13, and a heat dissipation fin 53 is inserted into a slot 13. By inserting the heat dissipation fin 53 into the slot 13, the heat transferred to the heat-conducting side plate 51 can not only be diffused into the surrounding air through the heat dissipation fin 53, but also rely on the shell 1 in direct contact with the heat dissipation fin 53 to accelerate the heat dissipation, thereby effectively improving the heat dissipation efficiency of the heat dissipation fin 53; and, one end of the heat dissipation fin 53 is inserted into the slot 13, and the other end of the heat dissipation fin 53 is fixed to the heat-conducting side plate 51, and the heat-conducting side plate 51 is fitted with the outer shell of the motor 21 through the heat-conducting gel 52 or the heat-conducting side plate 51, thereby forming a structure similar to a reinforcing rib, so that the structural stability of the motor 21 inside the shell 1 of the servo 1000 is improved.

[0041] In some other embodiments, please refer to Figure 3 The heat dissipation component 5 also includes a heat-conducting bottom plate 54, and the heat-conducting bottom plate 54 and the heat-conducting side plate 51 enclose a receiving groove. The motor 21 is received in the receiving groove, and the inner side wall of the receiving groove is in contact with the outer side wall of the outer shell of the motor 21, and the inner bottom wall of the receiving groove is in contact with the bottom wall of the outer shell of the motor 21; so as to further increase the contact area between the motor 21 and the heat dissipation component 5, and improve the heat dissipation efficiency of the heat dissipation component 5 to the motor 21. In addition, the addition of the heat-conducting bottom plate 54 allows the heat of the bottom wall of the outer shell of the motor 21 to be transferred to the heat dissipation fins 53 through the heat-conducting side plate 51 that is in direct contact with the heat-conducting bottom plate 54, thereby improving the heat dissipation capacity of the motor 21.

[0042] For the above enclosures, please also refer to Figure 4The housing 1 includes an upper housing 1a, a lower housing 1b, and a sealing gasket 14. The upper housing 1a and the lower housing 1b are detachably fixed to reduce the difficulty of installing the servo 1000 and facilitate the subsequent disassembly and maintenance of the drive mechanism 2, the angle detection mechanism 3, the circuit board 4, and the heat dissipation component 5. The upper housing 1a and the lower housing 1b together enclose a receiving cavity 11, and the sealing gasket 14 is provided at the joint between the upper housing 1a and the lower housing 1b. The provision of the sealing gasket 14 effectively improves the sealing performance at the connection between the upper housing 1a and the lower housing 1b, thereby preventing external liquids and other foreign matter from entering the interior of the housing 1 through the connection between the upper housing 1a and the lower housing 1b, thereby improving the waterproof performance of the housing 1.

[0043] In some embodiments, the housing 1 includes an inner bottom wall (not marked), the circuit board 4 is arranged on the inner bottom wall, and the servo 1000 also includes thermal conductive glue, which is located between the inner bottom wall and the circuit board 4; so that the circuit board 4 and the motor 21 are separated in the space inside the housing 1, reducing the mutual influence between the heat generated by the motor 21 and the heat generated by the circuit board 4. In addition, the circuit board 4 is arranged on the inner bottom wall and connected by thermal conductive glue, making full use of the excellent thermal conductivity of the thermal conductive glue, and can promptly transfer the heat generated by the circuit board 4 due to long-term work to the inner bottom wall of the housing 1, thereby improving the heat dissipation efficiency of the circuit board 4 and providing a good working environment for the long-term and stable operation of the circuit board 4.

[0044] It should be noted that thermal conductive adhesive is an auxiliary heat dissipation material that has been widely used in the fields of electrical engineering, automotive electronics, etc. Its specific structure and function can be referred to the existing technology and will not be further explained here.

[0045] In an embodiment of the present invention, the servo 1000 includes a shell 1, a drive mechanism 2, an angle detection mechanism 3, a circuit board 4 and a heat dissipation component 5, wherein the shell 1 is provided with a accommodating cavity 11 and a through hole 12, the through hole 12 connects the accommodating cavity 11 with the outside world, and the through hole 12 provides a channel for the communication between the drive mechanism 2 and the outside world; the drive mechanism 2 is arranged in the accommodating cavity 11, and the output shaft of the drive mechanism 2 extends out of the shell 1 from the through hole 12, and the end of the output shaft can be connected to an external device to provide power to the external device connected thereto; the angle detection mechanism 3 is arranged in the accommodating cavity 11, and the angle detection mechanism 3 is used to detect the rotation angle of the output shaft and generate corresponding detection data to feed back to the external device or the circuit board 4, the circuit board 4 is arranged in the accommodating cavity 11, and the circuit board The circuit board 4 is connected to the angle detection mechanism 3 and the drive mechanism 2. The circuit board 4 is used to control the operation of the angle detection mechanism 3 and the drive mechanism 2, for example, controlling the detection duration and detection frequency of the angle detection mechanism 3, and controlling the output power and operating time of the drive mechanism 2. The circuit board 4 can also perform relevant algorithm processing based on the detection signals transmitted by external equipment or the detection signals directly fed back by the angle detection mechanism 3, thereby forming an appropriate control program to control the drive mechanism 2 so that the servo 1000 meets the current operating requirements. The heat dissipation component 5 is located in the accommodating cavity 11 and attached to the drive mechanism 2 to improve the heat dissipation efficiency of the motor 21, effectively reducing the energy consumption and stability of the motor 21 caused by excessive temperature due to long-term operation. The addition of the heat dissipation component 5 effectively improves the heat dissipation efficiency of the motor 21, thereby ensuring the operating stability of the motor 21, reducing heat loss in the motor 21, and improving the performance of the motor 21. In turn, it improves the performance of the servo 1000 and ensures the stability of the servo 1000.

[0046] The present invention further provides an embodiment of an electronic device, which includes the aforementioned servo 1000. Regarding the structure and function of the servo 1000, please refer to the aforementioned embodiment, which will not be described in detail here.

[0047] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present invention; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A high heat dissipation steering gear, characterized in that: include: The housing is provided with a receiving cavity and a through hole, wherein the through hole connects the receiving cavity with the outside; A driving mechanism is disposed in the accommodating cavity, wherein an output shaft of the driving mechanism extends from the through hole to the outside of the housing; An angle detection mechanism is provided in the accommodating cavity, and is used to detect the rotation angle of the output shaft; a circuit board, disposed in the accommodating cavity, the circuit board being connected to the angle detection mechanism and the driving mechanism; The heat dissipation component is located in the accommodating cavity, and the heat dissipation component is attached to the driving mechanism.

2. The high heat dissipation steering gear according to claim 1, characterized in that: The driving mechanism includes a motor and a reduction assembly, the motor is connected to the reduction assembly, and the output shaft is provided on the reduction assembly; The heat dissipation assembly includes a heat-conducting side plate, and the heat-conducting side plate is attached to the outer side wall of the housing of the motor.

3. The high heat dissipation steering gear according to claim 2, characterized in that: The outer side walls of the motor housing and the heat-conducting side plates are both four in number, and one heat-conducting side plate is attached to one outer side wall.

4. The high heat dissipation steering gear according to claim 3, characterized in that: A heat-conducting gel is filled between the heat-conducting side plate and an outer side wall of the motor housing.

5. The high heat dissipation steering gear according to claim 4, characterized in that: Along the direction of the heat-conducting side plate close to the inner side wall of the shell, the heat-conducting side plate is extended with a plurality of heat-dissipating fins, and the plurality of heat-dissipating fins are arranged at intervals.

6. The high heat dissipation steering gear according to claim 5, characterized in that: The inner side wall of the shell is provided with a plurality of slots, and one of the heat dissipation fins is plugged into one of the slots.

7. The high heat dissipation steering gear according to any one of claims 2 to 6, characterized in that: The heat dissipation assembly also includes a heat-conducting base plate, and the heat-conducting base plate and the heat-conducting side plate enclose a receiving groove. The motor is received in the receiving groove, and the inner side wall of the receiving groove is in contact with the outer side wall of the motor housing, and the inner bottom wall of the receiving groove is in contact with the bottom wall of the motor housing.

8. The high heat dissipation steering gear according to any one of claims 1 to 6, characterized in that: The shell includes an upper shell, a lower shell and a sealing gasket. The upper shell and the lower shell are detachably fixed. The upper shell and the lower shell jointly enclose the accommodating cavity. The sealing gasket is arranged at the joint between the upper shell and the lower shell.

9. The high heat dissipation steering gear according to claim 1, characterized in that: The housing includes an inner bottom wall, and the circuit board is arranged on the inner bottom wall; The servo further comprises a heat-conducting adhesive, and the heat-conducting adhesive is located between the inner bottom wall and the circuit board.

10. An electronic device, characterized in that: The invention comprises a high heat dissipation servo as described in any one of claims 1 to 9.

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