Motor heat conduction structure, quick mounting plate and tracking camera

Abstract

The utility model discloses a motor heat conduction structure, quick -witted board and tracking camera. Motor heat conduction structure adopts rigid heat conduction material to make, be suitable for with motor head plug -in connection, including with the first space and interface step of motor head shape adaptation, the upper layer of interface step is the first connecting surface, is provided with first clearance hole in the center and is equipped with at least one second screw hole, is used for realizing the fixation and positioning of motor head. The longitudinal section of interface step is inverted isosceles trapezoid, and the side wall is equipped with the heat dissipation hole, and the lower layer is circular structure, to increase the heat dissipation area and form stable support. The inside of first space sets up annular metal gasket and inner ring raceway, is used for bearing bearing ball, realizes the efficient conduction of heat and mechanical force. The structure can be connected with quick -witted board quickly, constitutes modular installation system. Apply it to tracking camera, can improve motor heat dissipation efficiency, installation convenience and whole machine reliability significantly, is applicable to the heat management scene of cloud platform, robot and precision optical equipment.

Description

Technical Field

[0001] This utility model relates to the field of motor structure and its supporting installation components, and in particular to a motor heat conduction structure that combines heat conduction and structural connection functions, as well as a quick-release plate and tracking camera used in conjunction with it. Background Technology

[0002] In modern cameras, servo mechanisms, smart pan-tilt units, robots, and other equipment, motors generate a lot of heat when running for extended periods. If heat dissipation is not timely, it can easily lead to excessive temperature rise in the motor coils, insulation aging, and performance degradation, thereby affecting the overall lifespan and operational stability of the equipment.

[0003] Traditional motor cooling structures typically rely on passive heat dissipation through aluminum alloy casings or individual heat sinks. However, this design often overlooks the assembly interface structure between the motor and other components, resulting in contact gaps in the heat conduction path and limited heat dissipation efficiency. On the other hand, in detachable or modular structures, such as horizontal rotary motors used in panoramic pan-tilt units or tracking cameras, frequent assembly and replacement are required. Traditional fixed heat conduction structures cannot balance heat dissipation performance with the convenience of rapid installation.

[0004] Furthermore, most existing quick-installation interfaces for motors are based on plastic clips or threaded connections. While these facilitate assembly and disassembly, the materials have poor thermal conductivity and it is difficult to ensure an efficient heat conduction path between the motor head and the mounting base. In scenarios with high heat dissipation requirements (such as smart camera equipment operating 24 hours a day), relying solely on the motor housing for heat dissipation is insufficient to meet the needs of long-term stable operation.

[0005] Therefore, there is an urgent need for a motor heat-conducting structure that can efficiently conduct heat with the motor head and quickly assemble with the quick-assembly plate structure, so as to achieve integrated heat dissipation, positioning and structural connection, thereby improving the overall heat dissipation efficiency and modular performance of the system. Utility Model Content

[0006] In view of the above, in order to achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A first aspect of this application provides a motor heat-conducting structure made of a rigid heat-conducting material, wherein the motor heat-conducting structure is plugged into and connected to a motor head, comprising:

[0008] The first space that adapts to the shape of the motor head;

[0009] An interface step, the upper layer of which is a first connecting surface, the center of which is provided with a first gap hole suitable for fixing the motor heat-conducting structure and the motor head, and at least one second screw hole.

[0010] Furthermore, the longitudinal section of the interface step is an inverted isosceles trapezoid.

[0011] Furthermore, heat dissipation holes are provided on the side of the interface step.

[0012] Furthermore, the lower layer of the interface step is circular.

[0013] Furthermore, there are two auxiliary fixing screw holes, and the line connecting the centers of the two auxiliary fixing screw holes passes through the center of the main screw hole.

[0014] Furthermore, the bottom of the auxiliary fixing screw hole is closed.

[0015] Furthermore, an annular metal gasket is fixedly provided at the center of the inner side of the first space, and an inner raceway is provided on the annular metal gasket.

[0016] A second aspect of this application also provides a quick-release plate suitable for connection with the interface step of the motor heat-conducting structure provided in the first aspect of this application. The quick-release plate is provided with at least one second gap hole. After the quick-release plate is connected to the motor heat-conducting structure, each second gap hole is opposite to each second screw hole.

[0017] Furthermore, a countersink is provided on the outside of each of the aforementioned gap holes.

[0018] A third aspect of this application also provides a tracking camera equipped with the motor heat-conducting structure described in the first aspect of this application, the tracking camera being adapted to be connected to the quick-release plate as described in the second aspect of this application via the motor heat-conducting structure.

[0019] Through the above technical solutions, this utility model achieves tight thermal coupling between the motor and the heat-conducting structure, improving the overall heat dissipation efficiency; through the modular quick-installation interface design, it supports quick disassembly and maintenance; it provides integrated thermal management and structural support functions, and has the triple functions of heat dissipation, positioning, and connection, and can be extended to various application scenarios such as gimbal motors, optical equipment motors, and robot joint motors.

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A side view of a motor heat-conducting structure according to an embodiment of this application is shown;

[0023] Figure 2 An external perspective view of a motor heat-conducting structure according to an embodiment of this application is shown;

[0024] Figure 3 A top view of a motor heat-conducting structure according to an embodiment of this application is shown;

[0025] Figure 4 An internal perspective view of a motor heat-conducting structure according to an embodiment of this application is shown;

[0026] Figure 5 A schematic diagram showing the connection of a motor heat-conducting structure and a quick-release plate according to an embodiment of this application is shown;

[0027] Figure 6 A schematic diagram showing the connection of the motor heat-conducting structure and the quick-release plate according to one embodiment of this application is shown from another angle. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] like Figures 1 to 3 As shown, this utility model provides a motor heat-conducting structure (100), mainly used for installation at the front end of a horizontal rotating motor in a tracking camera or gimbal system, to achieve efficient heat dissipation and integrated structural connection. The structure is made of a rigid thermally conductive material, which can be aluminum alloy, copper alloy, copper-aluminum composite material, magnesium alloy, titanium alloy, stainless steel, or other metal materials with high thermal conductivity, depending on the application requirements. In one possible embodiment, the motor heat-conducting structure is formed by CNC machining of an integral aluminum alloy. The material can be 6061-T6 or 6063-T5 aerospace-grade thermally conductive aluminum, with a thermal conductivity of approximately 180–210 W / m·K, while also possessing good specific strength and fatigue resistance. For scenarios with higher heat dissipation requirements, a copper insert structure can also be used, embedding a high-purity copper block in the annular metal pad (1015) to improve the heat diffusion rate.

[0034] The heat-conducting structure comprises three functional areas: a first space, an interface step (101), and a first connection surface (1012).

[0035] First space (i.e.) Figure 4 The internal space of the motor heat-conducting structure (100) shown in the figure is an inner cavity structure, the shape of which corresponds one-to-one with the geometric shape of the motor head. It is usually a cylindrical shape or a composite structure with a positioning plane. After the motor head is inserted, a tight fit is achieved through interference fit or O-ring sealing fit. To ensure the effectiveness of heat conduction, the surface roughness of the inner wall of the first space is controlled below Ra0.8 and is anodized to prevent electrochemical corrosion.

[0036] During assembly, after the motor head is inserted into the first space, thermal grease can be applied to the contact interface to reduce contact thermal resistance, thereby ensuring that the heat generated by the motor can be conducted to the external heat-conducting structure through the shortest path.

[0037] The interface step (101) is the core part of the entire heat-conducting component. Its longitudinal section is a wedge shape corresponding to the shape of the quick-release plate (102), usually an inverted isosceles trapezoidal structure. The upper layer of the interface step (101) is the first connecting surface (1012), which is used to directly fit with the quick-release plate (102). The lower layer is the support platform, which is the top of the first space. Its shape is consistent with the cross-sectional shape of the motor head, usually set as a circle. The design of the inverted isosceles trapezoid creates a self-positioning effect, which can automatically center along the conical surface when the quick-release plate (102) is pressed together. On the other hand, the trapezoidal sidewall increases the contact area, which helps the heat to be transferred laterally between the heat-conducting structure and the quick-release plate (102). The slope angle of the step is preferably 10° to 15°, which can provide locking force and facilitate manual insertion and removal assembly.

[0038] like Figure 3 As shown, several heat dissipation holes (1011) are provided on the side of the interface step (101) along the circumferential direction. The heat dissipation holes (1011) are through holes, set in an elliptical or semi-circular racetrack shape (i.e., a geometric shape composed of two parallel straight sides and two semicircles), with a diameter of approximately 2.5mm × 6mm, a spacing of 4mm, and a depth penetrating the thickness of the step wall. This arrangement not only reduces the overall weight but also creates circumferential air circulation during equipment operation. When the motor rotates and drives the airflow, the air pressure difference inside and outside the heat dissipation holes (1011) promotes air exchange, forming micro-convection channels and effectively enhancing heat dissipation performance.

[0039] A first gap hole (1013) is provided at the center of the first connecting surface (1012). The diameter of the hole is determined according to the size of the main fixing screw, and it is used to pass through the main locking screw to fix the motor head. Since the connection between the quick-release plate (102) and the interface step (101) is a counter-clamping connection, it can prevent relative rotation between the two, but there may be lateral sliding, resulting in unstable fixation. Therefore, at least one second screw hole (1014) is provided on the interface step (101) so that the quick-release plate (102) and the motor heat-conducting structure (100) can be limited by screws. In one possible implementation, the second screw hole (1014) does not contain threads. The screw passing through the second gap hole (1021) on the quick-release plate (102) only needs to penetrate into the second screw hole (1014) to achieve the function of lateral limitation, without the need for longitudinal fixation by threads. Preferably, two second screw holes (1014) can be symmetrically provided on both sides of the first gap hole (1013) for auxiliary positioning and anti-rotation. The center line connecting the two second screw holes (1014) passes through the center of the first gap hole (1013), thus ensuring a uniform torque distribution during tightening and preventing the thermally conductive contact surface from warping due to uneven load. The bottom of the second screw hole (1014) is a closed design with a hole depth of approximately 8mm and a bottom sealing thickness of 1.5mm, which can effectively prevent dust, moisture, or conductive particles from entering the motor and extend the service life of the equipment.

[0040] In one possible implementation, such as Figure 4 As shown, an annular metal gasket (1015) is fixedly installed at the center of the bottom of the inner cavity of the heat-conducting structure (100). The gasket is made of a rigid heat-conducting material such as brass, and its surface is precision-machined to form a raceway for contact with the bearing balls at the front end of the motor head. This structure provides mechanical support while forming a high thermal conductivity channel, allowing the heat from the motor spindle to be directly transferred to the main body of the heat-conducting structure through the bearing, achieving dual-path heat conduction: one is a heat conduction path for the outer wall of the motor housing, and the other is a heat conduction path for the inner core of the spindle.

[0041] like Figure 5 and Figure 6 As shown, this utility model further utilizes a quick-release plate (102). The quick-release plate (102) is made of a rigid thermally conductive material, and its connecting surface is in direct contact with the first connecting surface (1012) of the motor thermally conductive structure (100) to form a heat diffusion surface. The quick-release plate (102) is provided with at least one second gap hole (1021), which corresponds to the second screw hole (1014) on the thermally conductive structure (100). Preferably, each second gap hole (1021) is provided with a countersunk hole on its outer side, with a countersunk angle of 90°, which can accommodate countersunk screws, making the screw head flush with the outer surface, thereby maintaining an overall smooth surface after assembly and preventing interference or scratches.

[0042] During assembly, the operator only needs to insert the motor heat-conducting structure (100) into the quick-release plate (102) interface and lock it in place. The connection is completed by using auxiliary screws for limiting the connection. The entire process is convenient. When the motor needs to be replaced or maintained, this structure can be disassembled simply by loosening the screws and quick-release plate, greatly improving maintenance efficiency.

[0043] During operation, some of the heat generated by the motor is directly dissipated to the ambient air through the heat dissipation holes (1011), while the other part of the heat is conducted to the quick-release plate (102) via the motor head, the annular metal gasket (1015), and the interface step (101), and is finally dissipated to the ambient air through the quick-release plate (102) structure. Since the entire heat conduction path is continuously connected by a high thermal conductivity metal, its total thermal resistance is small. If a graphite thermally conductive gasket is added between the quick-release plate (102) and the gimbal bracket, the overall thermal resistance can be further reduced.

[0044] Furthermore, the motor heat-conducting structure (100) of this invention can also serve as a structural support component. Since the diameter of the circular portion under the interface step (101) is slightly larger than that of the motor housing, it can be used as a stable support surface during camera installation, reducing vibration. The raceway structure of the annular metal gasket (1015) reduces the frictional resistance of the camera during horizontal rotation, thereby improving the tracking response speed.

[0045] To accommodate motors of different power ratings, this invention allows for adjustments to various parameters without altering its functional structure. The following are possible implementation methods for different power levels:

[0046] When the motor power is less than 20W, the annular metal gasket (1015) can be omitted, and the overall heat conduction structure can be used directly;

[0047] For servo motors with a power exceeding 50W, a miniature heat dissipation channel can be embedded inside the heat dissipation hole (1011) to form forced convection;

[0048] Microribs can be added to the outer surface of the interface step (101) to increase the radiation area;

[0049] For outdoor equipment that requires waterproofing and dustproofing, a silicone sealing ring can be installed at the entrance of the first space to achieve IP65 level protection.

[0050] The motor heat conduction structure (100) of this utility model is not only applicable to tracking cameras, but also to robot rotary joints, electric gimbals, 3D scanners and other scenarios. In the application of UAV gimbals, this utility model can effectively reduce the weight of heat dissipation components and improve heat conduction efficiency, so that the equipment can maintain thermal balance in high-altitude, low-wind-speed environments.

[0051] This utility model achieves a multi-functional integration of heat conduction, positioning, quick assembly, and support through an innovative mechanical-thermal coupling design, providing a highly reliable solution for the modular design of motor-type equipment.

[0052] In another embodiment under the same concept, the present invention provides a tracking camera equipped with a motor heat conduction structure (100), which is connected to a quick-release plate (102) via the motor heat conduction structure (100).

[0053] In one possible implementation, the tracking camera uses a horizontal rotary motor as a pitch / yaw linkage or single-axis tracking drive. The shape of the motor head is adapted to the first space in the motor heat conduction structure (100) in the aforementioned implementation, and reliable mechanical, thermal and electrical integration is achieved through main / auxiliary screws and quick-release plates (102).

[0054] In one embodiment, the tracking camera includes a pan-tilt unit, a horizontal motor, and a heat-conducting structure (100) for the motor, and is adapted to be connected to a tripod via a quick-release plate (102). The motor head of the horizontal motor is machined to fit within the tolerances of the first space during manufacturing to ensure good surface contact and heat conduction path after insertion and removal. The front end of the motor head is fitted with a bearing ball or a bearing housing with balls. The diameter, material, and surface treatment (e.g., nickel plating or nitriding) of the bearing ball are selected according to the working life and low friction requirements. The bearing mates with the inner raceway of an annular metal washer (1015), bearing both radial / axial forces and serving as a mechanical channel for heat conduction, transferring heat from the shaft end to the heat-conducting structure.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A motor heat-conducting structure (100), made of a rigid heat-conducting material, wherein the motor heat-conducting structure (100) is suitable for plug-in connection with a motor head, characterized in that, include: The first space that adapts to the shape of the motor head; Interface step (101), the upper layer of the interface step (101) is a first connecting surface (1012), the center of the first connecting surface (1012) is provided with a first gap hole (1013) suitable for fixing the motor heat conduction structure (100) and the motor head, and is provided with at least one second screw hole (1014).

2. The motor heat-conducting structure (100) as described in claim 1, characterized in that, The longitudinal section of the interface step (101) is an inverted isosceles trapezoid.

3. The motor heat-conducting structure (100) as described in claim 1, characterized in that, The interface step (101) has heat dissipation holes (1011) on its side.

4. The motor heat-conducting structure (100) as described in claim 1, characterized in that, The lower layer of the interface step (101) is circular.

5. The motor heat-conducting structure (100) as described in claim 1, characterized in that, There are two second screw holes (1014), and the line connecting the centers of the two second screw holes (1014) passes through the center of the first gap hole (1013).

6. The motor heat-conducting structure (100) as described in claim 1, characterized in that, The bottom of the second screw hole (1014) is closed.

7. The motor heat-conducting structure (100) as described in any one of claims 1-6, characterized in that, An annular metal gasket (1015) is fixedly provided at the center of the inner side of the first space, and an inner raceway is provided on the annular metal gasket (1015).

8. A quick-connect plate (102), said quick-connect plate (102) being adapted to connect with the interface step (101) of the motor heat-conducting structure (100) according to any one of claims 1-7, characterized in that, The quick-release plate (102) is provided with at least one second gap hole (1021). After the quick-release plate (102) is connected to the motor heat conduction structure (100), each second gap hole (1021) is opposite to each second screw hole (1014).

9. The quick-release plate (102) as described in claim 8, characterized in that, A countersink is provided on the outside of each of the second gap holes (1021).

10. A tracking camera equipped with a motor heat-conducting structure (100) as described in any one of claims 1-7, characterized in that, The tracking camera is adapted to be connected to the quick-release plate (102) as described in claim 8 or 9 via the motor heat conduction structure (100).

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