Brushless motor with efficient heat dissipation on intelligent driving equipment
By setting a heat dissipation mechanism and drive structure on the outside of the brushless motor, and using the shaft to drive the transmission gear and crank to achieve the reciprocating movement of the cooling fan, the problem of efficient heat dissipation of brushless motors in intelligent drive equipment is solved, and the heat dissipation efficiency and reliability are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-03-13
AI Technical Summary
As motor power increases and working environments become more complex, the heat dissipation problem of existing brushless motors in intelligent drive devices is becoming increasingly prominent. Traditional heat dissipation methods such as natural convection and forced air cooling are difficult to meet the needs of high-performance brushless motors.
A brushless motor with high-efficiency heat dissipation is designed for intelligent drive equipment. By setting a heat dissipation mechanism on the outside of the housing, including a movable base, mounting box, cooling fan and drive structure, the rotating shaft drives the transmission gear and crank to realize the reciprocating movement of the cooling fan, which enhances the heat exchange effect. The accuracy and safety of heat dissipation are ensured by the limit component.
It achieves comprehensive and efficient heat dissipation for brushless motors, improving heat dissipation efficiency and reliability, and is suitable for various intelligent drive devices, with broad application prospects.
Smart Images

Figure CN223993612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brushless motor technology, specifically to a brushless motor with efficient heat dissipation in an intelligent drive device. Background Technology
[0002] A brushless motor consists of a motor body and a driver, and is a typical mechatronic product. Because brushless DC motors operate in a self-controlled manner, they do not require additional starting windings on the rotor like synchronous motors that start under heavy loads with frequency conversion speed regulation. They also do not experience oscillations or loss of synchronism when the load changes abruptly. Brushless motors use semiconductor switching devices to achieve electronic commutation, that is, electronic switching devices replace traditional contact commutators and brushes. They have advantages such as high reliability, no commutation sparks, and low mechanical noise, and are widely used in mechanical and electrical equipment.
[0003] In the operation of intelligent drive equipment, brushless motors with efficient heat dissipation are required. Chinese utility model patent CN219287309U discloses a brushless motor with good heat dissipation, including a housing. Air vents are provided on both the left and right ends and the top and bottom sides of the housing. A filter plate is fixedly connected to the inner wall of each air vent. Fixing rings are fixedly connected to the outer sides of each air vent on both the left and right ends of the housing. Multiple brush plates are slidably connected to the inner wall of each fixing ring, and a brush is fixedly connected to one end of each brush plate. In this utility model, when the shaft rotates, it drives the impeller to rotate, drawing air into the housing and carrying away the heat generated by the motor's rotation, thus preventing the motor from overheating and being damaged. It also cleans the filter plates, preventing them from becoming clogged and ensuring consistently good heat dissipation.
[0004] However, when the brushless motor with good heat dissipation of this utility model is used in intelligent drive equipment, the heat dissipation problem of the motor becomes increasingly prominent as the motor power increases and the working environment becomes more complex. The heat dissipation methods of this brushless motor, such as natural convection and forced air cooling, are no longer able to meet the heat dissipation requirements of high-performance brushless motors. Therefore, a brushless motor with efficient heat dissipation in intelligent drive equipment is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a brushless motor with efficient heat dissipation for intelligent drive devices. It has the advantages of efficient heat dissipation and strong practicality, solving the problem that when existing brushless motors with good heat dissipation are used in intelligent drive devices, the heat dissipation problem of the motor becomes increasingly prominent as the motor power increases and the working environment becomes more complex. The heat dissipation methods of the existing brushless motors, such as natural convection and forced air cooling, are no longer sufficient to meet the heat dissipation requirements of high-performance brushless motors.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a brushless motor with high-efficiency heat dissipation on an intelligent drive device, comprising a brushless motor body, a housing disposed outside the brushless motor body, a heat dissipation block fixedly connected to the outside of the housing, and a cover plate detachably installed on the upper surface of the housing. The rotating shaft of the brushless motor body penetrates to the outside of the housing. A heat dissipation mechanism is provided outside the housing, and a drive structure for operating the heat dissipation mechanism is provided outside the housing.
[0007] The heat dissipation mechanism includes a movable seat slidably connected to the upper surface of the cover plate, a mounting box fixedly connected to the outside of the movable seat, a heat dissipation fan rotatably installed outside the mounting box, and a limiting component set on the upper surface of the cover plate.
[0008] The drive structure includes a mounting bracket fixedly connected to the outside of the housing, a connecting shaft rotatably connected to the inside of the mounting bracket, a rotating disk fixedly connected to the top of the connecting shaft, a crank hinged to the upper surface of the rotating disk, a driven gear fixedly connected to the bottom of the connecting shaft, and a transmission gear fixedly installed on the outside of the rotating shaft.
[0009] Furthermore, a filter plate is slidably connected inside the mounting box, a handle is fixedly connected to the top of the filter plate, and a moving opening adapted to the filter plate is provided inside the mounting box.
[0010] Furthermore, there are two sets of mounting boxes, cooling fans, and filter plates, and two sets of heat sinks. The two sets of mounting boxes, cooling fans, and filter plates are symmetrically distributed on the outer surface of the two sets of heat sinks.
[0011] Furthermore, the limiting component includes a slide fixedly mounted on the upper surface of the cover plate and a slider fixedly connected to the bottom of the movable seat and extending into the slide, wherein the slider and the slide are slidably connected.
[0012] Furthermore, the mounting bracket is bolted to the housing, and a bearing adapted to the connecting shaft is fixedly installed inside the mounting bracket, with the connecting shaft and the inner ring of the bearing being fixedly connected.
[0013] Furthermore, the rotating disk is rotatably connected to the upper surface of the mounting bracket, the crank is oscillatingly connected to the upper surface of the rotating disk, and the end of the crank away from the rotating disk is hinged to the lower surface of the movable seat.
[0014] Furthermore, the transmission gear is sleeved on the outer surface of the rotating shaft through a retaining ring, and the transmission gear and the driven gear are meshed with each other.
[0015] Compared with the prior art, this utility model provides a brushless motor with high-efficiency heat dissipation in an intelligent drive device, which has the following beneficial effects:
[0016] 1. This intelligent drive device features a brushless motor with high-efficiency heat dissipation. The cooling fan is activated by the controller. During the reciprocating movement of the moving base, the cooling fan accelerates the heat exchange between the heat sink and the surrounding air, thereby achieving efficient heat dissipation of the brushless motor body. This allows the cooling fan to move within a certain range, enabling targeted heat dissipation of different hot spots and improving heat dissipation efficiency. By setting up a sliding base and slider, it is ensured that the heat dissipation mechanism does not exceed the preset range during movement, guaranteeing the accuracy and safety of heat dissipation and achieving the advantage of high-efficiency heat dissipation.
[0017] 2. This intelligent drive device features a high-efficiency heat-dissipating brushless motor. The operation of the brushless motor body drives the transmission gear through its shaft. This causes the transmission gear, driven gear, connecting shaft, rotating disk, and crank to engage in transmission and movement, thereby driving the heat dissipation mechanism to reciprocate outside the brushless motor body. Through the synergistic effect of the drive structure and the heat dissipation mechanism, all-round heat dissipation of the brushless motor body is achieved. At the same time, the reciprocating movement of the cooling fan further enhances the heat dissipation effect. It also has high reliability and stability, is applicable to various intelligent drive devices, has broad application prospects, and achieves the advantage of strong practicality. Attached Figure Description
[0018] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0019] Figure 2 This is a three-dimensional cross-sectional view of the structure of this utility model;
[0020] Figure 3 This is a three-dimensional structural view of the heat dissipation mechanism of this utility model;
[0021] Figure 4 This is a three-dimensional view of the drive structure of this utility model;
[0022] Figure 5 This utility model Figure 1 A magnified structural diagram of structure A is shown.
[0023] In the diagram: 1. Brushless motor body; 2. Housing; 3. Shaft; 4. Heat sink; 5. Cover plate; 6. Heat dissipation mechanism; 61. Movable seat; 62. Mounting box; 63. Cooling fan; 64. Filter plate; 65. Slide seat; 66. Slider; 7. Drive structure; 71. Mounting bracket; 72. Connecting shaft; 73. Rotating disk; 74. Crank; 75. Driven gear; 76. Transmission gear. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 5 This embodiment describes a smart drive device with a brushless motor that features high-efficiency heat dissipation. The motor includes a brushless motor body 1, a housing 2 disposed outside the brushless motor body 1, a heat sink 4 fixedly connected to the outside of the housing 2, and a cover plate 5 detachably mounted on the upper surface of the housing 2. The shaft 3 of the brushless motor body 1 extends to the outside of the housing 2. A heat dissipation mechanism 6 is disposed outside the housing 2, and a drive structure 7 for operating the heat dissipation mechanism 6 is also disposed outside the housing 2. The heat dissipation mechanism 6 includes a movable seat 61 slidably connected to the upper surface of the cover plate 5, a mounting box 62 fixedly connected to the outside of the movable seat 61, a cooling fan 63 rotatably mounted outside the mounting box 62, and a limiting component disposed on the upper surface of the cover plate 5. The cooling fan 63 is activated by a controller. During the reciprocating movement of the movable seat 61, the cooling fan 63 accelerates the heat exchange between the heat sink 4 and the surrounding air, thereby achieving efficient heat dissipation of the brushless motor body 1. The cooling fan 63 can move within a certain range, allowing for targeted heat dissipation of different hot spots, thus improving heat dissipation efficiency.
[0026] The mounting box 62 has a filter plate 64 slidably connected inside, and a handle is fixedly connected to the top of the filter plate 64. The mounting box 62 has a movable opening inside that matches the filter plate 64. By setting up the filter plate 64, it is easy to collect dust for subsequent centralized treatment.
[0027] Specifically, there are two sets of mounting boxes 62, cooling fans 63, and filter plates 64, and two sets of heat sinks 4. The two sets of mounting boxes 62, cooling fans 63, and filter plates 64 are symmetrically distributed on the outer surface of the two sets of heat sinks 4.
[0028] It should be noted that the limiting component includes a slide 65 fixedly mounted on the upper surface of the cover plate 5 and a slider 66 fixedly connected to the bottom of the movable seat 61 and extending into the slide 65. The slider 66 and the slide 65 are slidably connected. By setting the slide 65 and the slider 66, it is ensured that the heat dissipation mechanism 6 will not exceed the preset range during movement, thus ensuring the accuracy and safety of heat dissipation.
[0029] In this embodiment, the drive structure 7 includes a mounting bracket 71 fixedly connected to the outside of the housing 2, a connecting shaft 72 rotatably connected to the inside of the mounting bracket 71, a rotating disk 73 fixedly connected to the top of the connecting shaft 72, a crank 74 hinged to the upper surface of the rotating disk 73, a driven gear 75 fixedly connected to the bottom of the connecting shaft 72, and a transmission gear 76 fixedly installed on the outside of the rotating shaft 3.
[0030] The mounting bracket 71 is bolted to the housing 2. A bearing adapted to the connecting shaft 72 is fixedly installed inside the mounting bracket 71. The connecting shaft 72 is fixedly connected to the inner ring of the bearing.
[0031] Specifically, the rotating disk 73 is rotatably connected to the upper surface of the mounting bracket 71, and the crank 74 is oscillatingly connected to the upper surface of the rotating disk 73. The end of the crank 74 away from the rotating disk 73 is hinged to the lower surface of the moving base 61. The operation of the brushless motor body 1 drives its rotating shaft 3 to drive the transmission gear 76, causing the transmission gear 76, driven gear 75, connecting shaft 72, rotating disk 73, and crank 74 to engage in transmission and coordination. This, in turn, drives the heat dissipation mechanism 6 to reciprocate outside the brushless motor body 1. Through the synergistic effect of the drive structure 7 and the heat dissipation mechanism 6, all-around heat dissipation of the brushless motor body 1 is achieved. Simultaneously, the reciprocating movement of the cooling fan 63 further enhances the heat dissipation effect, exhibiting high reliability and stability. It is suitable for various intelligent drive devices, has broad application prospects, and achieves the advantage of strong practicality.
[0032] It should be noted that the transmission gear 76 is sleeved on the outer surface of the rotating shaft 3 through a retaining ring, and the transmission gear 76 and the driven gear 75 are meshed with each other.
[0033] The working principle of the above embodiments is as follows:
[0034] In practical use, the brushless motor body 1 is installed in the intelligent drive device. When the brushless motor body 1 is running, its rotating shaft 3 drives the transmission gear 76, causing the transmission gear 76, driven gear 75, connecting shaft 72, rotating disk 73, and crank 74 to engage in transmission and movement, thereby driving the heat dissipation mechanism 6 to reciprocate outside the brushless motor body 1. Then, the controller starts the cooling fan 63 to work. During the reciprocating movement of the moving base 61, the cooling fan 63 accelerates the heat exchange between the heat sink 4 and the surrounding air, thereby achieving efficient heat dissipation of the brushless motor body 1. The cooling fan 63 can move within a certain range, allowing for targeted heat dissipation of different hot spots. This ensures that the brushless motor body 1 maintains a stable and efficient working state during long-term operation.
[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A brushless motor with high-efficiency heat dissipation in an intelligent drive device, characterized in that: The application relates to a brushless motor, which comprises a brushless motor body (1), a shell (2) arranged outside the brushless motor body (1), a heat dissipation block (4) fixedly connected to the outside of the shell (2), and a cover plate (5) detachably mounted on the upper surface of the shell (2), wherein the rotating shaft (3) of the brushless motor body (1) penetrates the outside of the shell (2), the outside of the shell (2) is provided with a heat dissipation mechanism (6), and the outside of the shell (2) is provided with a driving structure (7) for driving the heat dissipation mechanism (6). The heat dissipation mechanism (6) comprises a moving base (61) slidingly connected to the upper surface of the cover plate (5), a mounting box (62) fixedly connected to the outside of the moving base (61), a heat dissipation fan (63) rotatably mounted on the outside of the mounting box (62), and a limiting assembly arranged on the upper surface of the cover plate (5). The driving structure (7) comprises a mounting frame (71) fixedly connected to the outside of the shell (2), a connecting shaft (72) rotatably connected to the inside of the mounting frame (71), a rotating disc (73) fixedly connected to the top end of the connecting shaft (72), a crank (74) hingedly connected to the upper surface of the rotating disc (73), a driven gear (75) fixedly connected to the bottom end of the connecting shaft (72), and a transmission gear (76) fixedly mounted on the outside of the rotating shaft (3).
2. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The inside of the mounting box (62) is slidingly connected with a filter plate (64), the top of the filter plate (64) is fixedly connected with a handle, and the inside of the mounting box (62) is provided with a moving opening matched with the filter plate (64).
3. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The number of the mounting box (62), the heat dissipation fan (63) and the filter plate (64) is two, and the number of the heat dissipation block (4) is two; the mounting box (62), the heat dissipation fan (63) and the filter plate (64) are symmetrically distributed on the outer surfaces of the two heat dissipation blocks (4).
4. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The limiting assembly comprises a sliding seat (65) fixedly mounted on the upper surface of the cover plate (5) and a sliding block (66) fixedly connected to the bottom of the moving base (61) and extending into the sliding seat (65); the sliding block (66) and the sliding seat (65) are slidingly connected.
5. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The mounting frame (71) is bolted to the shell (2), the inside of the mounting frame (71) is fixedly provided with a bearing matched with the connecting shaft (72), and the connecting shaft (72) is fixedly connected to the inner ring of the bearing.
6. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The rotating disc (73) is rotatably connected to the upper surface of the mounting frame (71), the crank (74) is swingingly connected to the upper surface of the rotating disc (73), and the end, away from the rotating disc (73), of the crank (74) is hingedly connected to the lower surface of the moving base (61).
7. The brushless motor with high-efficiency heat dissipation on the intelligent driving device according to claim 1, characterized in that: The transmission gear (76) is sleeved on the outer surface of the rotating shaft (3) through a fixing ring, and the transmission gear (76) and the driven gear (75) are meshed with each other.
Citation Information
Patent Citations
Brushless motor with good heat dissipation
CN219287309U