Integrated driver for reducing cost of brushless motor
By employing a thermal management mechanism with thermal pads and heat sinks in the integrated driver of the brushless motor, the increased cost caused by heat sink fins is solved, resulting in better heat dissipation and stability.
Patent Information
- Application Number
- CN202422894276.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing integrated drivers for brushless motors require additional heat sinks to ensure heat dissipation stability, which increases costs.
A thermal management mechanism, including thermal pads and heat sinks, is adopted to conduct heat between the housing and the circuit board through close contact. Heat dissipation grooves and holes are provided on the housing to enhance the heat dissipation effect, eliminating the need for heat sink fins.
This effectively reduces the cost of using brushless motors while improving heat dissipation and stability.
Smart Images
Figure CN223599752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of integrated driver technology, and in particular to an integrated driver for reducing the cost of brushless motors. Background Technology
[0002] A brushless DC 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 an additional starting winding 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 during sudden load changes. Currently, when driving and controlling brushless motors, a driver is needed for overall drive control to generate further electrical control signals.
[0003] Traditional brushless motors use integrated drivers, which require additional heat sinks to be installed on the surface of the integrated driver housing to dissipate heat and ensure stable operation. This increases the cost of the integrated driver. To reduce the cost of using integrated drivers, an integrated driver for reducing the cost of brushless motors is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an integrated driver for reducing the cost of brushless motors. This solves the problem that the prior art requires additional heat sinks to be installed on the surface of the integrated driver housing to dissipate heat and ensure the stable operation of the integrated driver, which leads to an increase in the cost of the integrated driver.
[0005] In view of this, the present invention provides an integrated driver for reducing the cost of brushless motors, including a circuit board and a housing. The housing is snap-fitted and fixedly mounted on the top of the circuit board. A control chip, a capacitor and a controller are fixedly mounted on the top of the circuit board. A thermal management mechanism is provided inside the housing.
[0006] The thermal management mechanism includes several heat sinks and thermal pads. The thermal pads are fixedly installed inside the housing, and the heat sinks are fixedly installed on the top of the housing. Several heat dissipation grooves are provided on the top of the housing, and several heat dissipation holes penetrating the heat sinks are provided inside the heat dissipation grooves.
[0007] Optionally, the thermal pad includes a first thermal pad and a second thermal pad.
[0008] Optionally, a second groove is provided at the bottom of the housing, the second groove corresponding to the control chip, and the first thermal pad is located on the inner wall of the second groove.
[0009] Optionally, the third groove is arranged on the bottom of the shell, and the third groove is corresponding to the capacitor.
[0010] Optionally, the first groove is arranged on one side of the shell, and the first groove is corresponding to the controller.
[0011] Optionally, the second heat-conducting hole is arranged on the inner wall of the first groove, and the first heat-conducting hole is arranged in the shell and is in communication with the second heat-conducting hole.
[0012] Optionally, the socket is arranged on one side of the circuit board and is connected with the controller.
[0013] From the above technical solutions, it can be seen that the utility model has the following advantages:
[0014] 1. The integrated driver for reducing the cost of the brushless motor adopts the heat management mechanism, the heat-conducting pad is arranged, the shell and the circuit board can be more closely contacted, the heat generated by the operation of the circuit board can be directly conducted to the shell, the heat dissipation fins are directly arranged on the top of the shell, the installation of the heat dissipation fins can be omitted, the shell can be directly cooled through the heat dissipation fins, the air can flow in the heat dissipation fins and the heat dissipation grooves through the arrangement of the heat dissipation grooves and the heat dissipation holes, the heat dissipation effect of the shell is better, the cost increase caused by excessive heat dissipation design can be avoided, and therefore the use cost of the brushless motor can be reduced.
[0015] 2. The integrated driver for reducing the cost of the brushless motor, the heat generated by the operation of the controller can be filled in the first groove through the arrangement of the first groove on one side of the shell, the heat can flow into the second heat-conducting hole through the arrangement of the second heat-conducting hole on the inner wall of the first groove, the heat in the second heat-conducting hole can be discharged through the first heat-conducting hole, the heat dissipation effect is further increased, and the use is more stable.
[0016] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further explained in combination with the drawings:
[0018] Figure 1 It is the structure schematic drawing of the utility model;
[0019] Figure 2 It is the shell structure schematic drawing of the utility model;
[0020] Figure 3 It is the bottom structure schematic drawing of the shell of the utility model;
[0021] Figure 4 The utility model discloses a circuit board structure schematic diagram.
[0022] Mark explanation: 1, circuit board, 2, socket, 3, shell, 4, fin, 5, heat dissipation groove, 6, heat dissipation hole, 7, first heat conduction hole, 8, first recess, 9, second heat conduction hole, 10, second recess, 11, first heat conduction pad, 12, third recess, 13, second heat conduction pad, 14, control chip, 15, electric capacity, 16, controller. DETAILED DESCRIPTION
[0023] The utility model discloses an embodiment of the utility model is explained and described with the drawings of the embodiment of the utility model to the technical scheme of the embodiment of the utility model, but the following embodiment is only the preferred embodiment of the utility model, and is not all.Based on the embodiment in implementation, the other embodiment that the person skilled in the art obtains without making creative labor all belong to the protection scope of the utility model.
[0024] The utility model discloses an embodiment for reducing the integrated driver of brushless motor cost.
[0025] Embodiment 1
[0026] For the convenience of understanding, please refer to Figures 1 to 4 An embodiment of the utility model provides an integrated driver for reducing the cost of brushless motor, including circuit board 1 and shell 3, shell 3 is clamped and fixedly installed at the top of circuit board 1, and the top of circuit board 1 is fixedly installed with control chip 14, electric capacity 15 and controller 16, and the inside of shell 3 is provided with a heat management mechanism.
[0027] The heat management mechanism includes a plurality of fins 4 and heat conduction pads, the heat conduction pads are fixedly installed in the inside of shell 3, the fins 4 are fixedly installed on the top of shell 3, a plurality of heat dissipation grooves 5 are formed on the top of shell 3, and a plurality of heat dissipation holes 6 penetrating the fins 4 are formed in the heat dissipation grooves 5.
[0028] It should be noted that, by setting the heat conduction pad, the shell 3 can be in close contact with the circuit board 1, so that the heat generated by the operation of the circuit board 1 can be directly conducted to the shell 3, and by directly installing the fins 4 on the top of the shell 3, the installation of the heat dissipation fins can be omitted, so that the shell 3 can be directly cooled by the fins 4, and by setting the heat dissipation grooves 5 and the heat dissipation holes 6, the air can flow through the fins 4 and the heat dissipation grooves 5, so that the heat dissipation effect of the shell 3 is better, and the increase of the cost caused by excessive heat dissipation design can be avoided, so that the use cost of the brushless motor can be reduced.
[0029] In some embodiments, such as Figure 3As shown, the heat-conducting pad includes a first heat-conducting pad 11 and a second heat-conducting pad 13, the shell 3 is provided with a second groove 10 at the bottom, the second groove 10 corresponds to the control chip 14, the first heat-conducting pad 11 is located on the inner wall of the second groove 10, the shell 3 is provided with a third groove 12 at the bottom, the third groove 12 corresponds to the capacitor 15, and the second heat-conducting pad 13 is located on the inner wall of the third groove 12.
[0030] It should be noted that the plurality of cooling fins 4 correspond to the second groove 10, the cooling groove 5 corresponds to the third groove 12, the control chip 14 can be in close contact with the shell 3 by arranging the first heat-conducting pad 11, the capacitor 15 can be in close contact with the shell 3 by arranging the second heat-conducting pad 13, and the heat generated by the control chip 14 and the capacitor 15 can be better transmitted to the shell 3.
[0031] In some embodiments, as shown in the drawings, Figure 4 As shown, the one side of the circuit board 1 is fixedly provided with a socket 2, and the socket 2 is connected with the controller 16.
[0032] It should be noted that the socket 2 can be used for connecting the brushless motor.
[0033] Embodiment 2
[0034] In some embodiments, as shown in the drawings, Figure 3 As shown, the shell 3 is provided with a first groove 8 at one side, the first groove 8 corresponds to the controller 16, the inner wall of the first groove 8 is provided with a second heat-conducting hole 9, the shell 3 is provided with a first heat-conducting hole 7 inside, and the first heat-conducting hole 7 is in communication with the second heat-conducting hole 9.
[0035] It should be noted that the heat generated by the operation of the controller 16 can be filled in the first groove 8 by providing the first groove 8 at one side of the shell 3, the heat can flow into the second heat-conducting hole 9 by providing the second heat-conducting hole 9 in the inner wall of the first groove 8, the heat in the second heat-conducting hole 9 can be discharged through the first heat-conducting hole 7 by arranging the first heat-conducting hole 7, and the heat dissipation effect is further increased, and the use is more stable.
[0036] The control chip 14, the capacitor 15 and the controller 16 in the utility model are well-known parts, and will not be repeated here.
[0037] Working principle: when using, install the shell 3 on the top of the circuit board 1, make the control chip 14 in the second groove 10, the capacitor 15 in the third groove 12, the controller 16 in the first groove 8, through setting the first heat-conducting pad 11, the control chip 14 can contact the shell 3 more closely, through setting the second heat-conducting pad 13, the capacitor 15 can contact the shell 3 more closely, the heat generated by the control chip 14 and the capacitor 15 can be better transmitted to the shell 3, through installing the heat sink 4 directly on the top of the shell 3, the heat dissipation fin can be saved, the shell 3 can directly dissipate heat through the heat sink 4, through setting the heat dissipation groove 5 and the heat dissipation hole 6, the air can flow in the heat sink 4 and the heat dissipation groove 5, the heat dissipation effect of the shell 3 is better, through the first heat-conducting hole 7, the heat in the second heat-conducting hole 9 can be discharged through the first heat-conducting hole 7, further increase the heat dissipation effect, use more stable.
[0038] The above-described and above-mentioned examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An integrated driver for reducing the cost of a brushless motor, characterized by: Including circuit board (1) and casing (3), the casing (3) is clamped and fixedly installed on the top of the circuit board (1), the top of the circuit board (1) is fixedly installed with control chip (14), capacitor (15) and controller (16), the casing (3) is internally provided with heat management mechanism; The heat management mechanism includes several heat dissipation fins (4) and heat conduction pads, the heat conduction pads are fixedly installed in the casing (3), the heat dissipation fins (4) are fixedly installed on the top of the casing (3), the top of the casing (3) is provided with several heat dissipation grooves (5), and the heat dissipation grooves (5) are internally provided with several heat dissipation holes (6) penetrating through the heat dissipation fins (4).
2. An integrated driver for reducing the cost of a brushless motor according to claim 1, characterized in that: The heat conduction pad includes first heat conduction pad (11) and second heat conduction pad (13).
3. An integrated driver for reducing the cost of a brushless motor according to claim 2, characterized in that: The bottom of the casing (3) is provided with second groove (10), the second groove (10) corresponds to the control chip (14), and the first heat conduction pad (11) is located on the inner wall of the second groove (10).
4. An integrated driver for reducing the cost of a brushless motor according to claim 2, characterized in that: The bottom of the casing (3) is provided with third groove (12), the third groove (12) corresponds to the capacitor (15), and the second heat conduction pad (13) is located on the inner wall of the third groove (12).
5. An integrated driver for reducing the cost of a brushless motor according to claim 1, characterized in that: The side of the casing (3) is provided with first groove (8), and the first groove (8) corresponds to the controller (16).
6. An integrated driver for reducing the cost of a brushless motor according to claim 5, characterized in that: The second heat conduction hole (9) is arranged on the inner wall of the first groove (8), the first heat conduction hole (7) is arranged in the casing (3), and the first heat conduction hole (7) is in communication with the second heat conduction hole (9).
7. An integrated driver for reducing the cost of a brushless motor according to claim 1, characterized in that: The side of the circuit board (1) is fixedly installed with socket (2), and the socket (2) is connected with the controller (16).