Controller, motor and water pump

Abstract

The utility model relates to a controller, a motor and a water pump, which solve the problem in the prior art that heat in the controller is not dissipated timely, and adopts the technical scheme that the controller comprises a control box and a circuit board arranged in the control box, and is characterized in that the circuit board is provided with a control area, a power area and an auxiliary area which are arranged at intervals; the control area is provided with a control module, the power area is provided with a power module, the auxiliary area is provided with a power circuit module, the power circuit module is electrically connected with the power module and the control module, and the interval between the control area and the power area achieves the purpose of thermal isolation. The beneficial effects of the utility model are that the main improvement is that components and circuits on the circuit board in the controller are reasonably arranged, and the operation reliability of the control module and the power supply circuit module (especially the control module) is prevented from being damaged by a large amount of heat generated when the power module works, so that the operation reliability of the controller is improved, and the replacement and maintenance probability is reduced; the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of controller, motor and water pump, especially a kind of controller, motor and water pump. BACKGROUND

[0002] For the controller, there are usually some power devices on the printed circuit board, which will generate a certain amount of heat when working, causing the internal temperature of the controller to rise rapidly. If this heat is not dissipated in time, the internal temperature of the controller will continue to rise, and the possibility of failure of the devices on the printed circuit board due to high temperature will increase, resulting in a decrease in the reliability of the controller, and even causing the controller to fail to work. SUMMARY

[0003] The utility model aims at solving the above problems existing in prior art and provides a kind of controller, motor and water pump, mainly improve in the circuit board of controller Each component, circuit reasonable layout, avoid the operation reliability of control module and power line module (especially control module) damaged by the large amount of heat generated when power module works, thereby being conducive to improving the operation reliability of the controller, reducing the probability of replacement and maintenance, and reducing the use cost.

[0004] The above technical purpose of the utility model is mainly solved by the following technical scheme:

[0005] The technical scheme of the first technical subject involved in the utility model: a kind of controller, including control box, circuit board being arranged in control box, it is characterized in that the circuit board has spaced control area, power area and auxiliary area, the control area is equipped with control module, the power area is equipped with power module, the auxiliary area is equipped with power line module, the power line module is electrically connected with the power module and control module, and the interval between the control area and the power area achieves the purpose of thermal isolation. Control module is used to realize the main control function of controller, including MCU and other control chips, and the cost of control module is relatively high. Control module needs to operate more stably in a relatively low temperature environment, and is not easily damaged by high temperature. The control module is arranged in the control area, and the control area is spaced from the power area, which is conducive to reducing the heat generated by the power module in the power area when working from entering the control area, and is conducive to keeping the temperature of the control area relatively low. Similarly, the power area and the auxiliary area are spaced, which is conducive to keeping the temperature of the auxiliary area relatively low and protecting the power line module in the auxiliary area to operate more stably.

[0006] As further improvement and supplement to the above technical solutions, the utility model discloses the following technical measures: in order to pull apart interval distance as far as possible, thereby being favorable to reduce the heat influence that the control module on control area produces as far as possible to power module on power area, control area, power area are arranged respectively in the two mutually facing away corner area control area of circuit board, and the control module is equipped with control chip at least.

[0007] As preferred, the auxiliary area is arranged in an edge region of the circuit board, the edge region is away from the control area and the power area, and the power supply circuit module is provided with a power supply and a capacitor connected by a wire at least. The control area, the power area and the auxiliary area are arranged in different regions in three directions, which is conducive to further reducing the influence of the heat generated by the power module in the power area on the control module in the control area and the power supply circuit module in the auxiliary area.

[0008] As preferred, the bottom of the control box is provided with a heat sink, the upper end of the heat sink is arranged corresponding to the power area, and the heat sink is also arranged corresponding to the fan part on the motor. On the basis of the foregoing technical solutions, the bottom of the control box is additionally provided with a heat sink, when the controller is applied to the motor, the heat sink is arranged at a suitable position outside the fan, and the airflow formed by the operation of the fan can carry away part of the heat on the controller, which is conducive to further reducing the heat inside the controller and improving the working stability of the controller, especially the working stability of the control module.

[0009] As preferred, the heat sink includes a metal base plate, a metal heat sink body located below the base plate and extending downward and forming an integral structure with the base plate, the base plate extends into the control box, and the upper surface of the base plate is attached to the lower surface of the circuit board through a heat-conducting layer and is arranged corresponding to the power area. That is, the heat sink is made of metal material with good heat dissipation effect, the metal base plate at the upper end of the heat sink directly extends into the control box, and the heat on the circuit board can be efficiently transferred to the heat sink through the heat-conducting layer (the material of the heat-conducting layer is selected from good heat-conducting materials, such as heat-conducting silicone grease), and then the heat is efficiently dissipated by the heat sink.

[0010] As preferred, the lower end of the heat sink body is recessed upward in a circular arc shape, and the circular arc shape matches the outer diameter size of the fan part on the motor. The lower end of the heat sink body is recessed upward to form a nesting relationship with the fan, which is conducive to the airflow formed by the fan to contact the heat sink more, and the heat on the heat sink can be more efficiently carried away, thereby the temperature inside the controller can be effectively controlled, and the running stability and reliability of the controller are improved.

[0011] The utility model relates to a second technical main body's technical scheme: a motor, including motor main part, the fan of being located motor main part tail part, the controller of being located on motor main part, its characterized in that the controller is aforementioned controller, the fin on the controller corresponds with fan shell setting.

[0012] As preferred, the fin has several fin bodies, the lower end of the fin body is concave to the upper arc edge, which is buckled on the shell of the fan, and the distance between the arc edge and the shell is 2-15mm. The airflow generated by the fan can enter the gap between the fin bodies, and the distance between the fin and the fan shell can prevent the heat generated by the motor from being conducted to the controller. The airflow generated by the fan can not only carry away the heat generated by the motor, but also carry away the heat generated by the controller, which is beneficial to the stable operation of the motor and the controller.

[0013] As preferred, the fan includes a fan blade, a fan cover covering the outer end of the fan blade, an air outlet on the side wall of the fan cover, and a baffle on both sides of the air outlet. The baffle is an integral structure with the side wall, and the baffle is folded outward from the side wall. The radial dimension of the air outlet is adapted to the radial dimension of the fin body. By setting the air outlet and the baffle on the side wall of the fan, most of the area of the fin body is limited within the air outlet between the two baffles. When the motor is running, the wind generated by the fan flows inside the fan cover and then flows through the air outlet on the side and the air outlet on the end to the outside. By using one fan, the motor and the controller can be cooled, which improves the utilization rate of the fan and simplifies the structure.

[0014] The utility model relates to a third technical main body's technical scheme: a water pump, including pump body, with the pump body forms the connection and drives the impeller work of the pump body's motor, its characterized in that the motor is aforementioned motor, sets up the controller on the motor is aforementioned controller, the fin on the controller corresponds with fan shell setting. This technical scheme is the scheme of the improvement based on the first technical scheme, thus also has all beneficial effects of the improvement part of the first technical scheme.

[0015] The seat cushion and the support frame are provided with a partition body, and the edge of the partition body is concave inward to the edge of the seat cushion.

[0016] The utility model has the beneficial effect that: 1, the first improvement of the technical scheme lies in: each component on the circuit board in the controller, line layout is reasonable, avoid the operation reliability of control module and power line module (especially control module) which a large amount of heat is produced when power module works, thereby being favorable for improving the operation reliability of controller, reducing the replacement maintenance probability, reducing the use cost. 2, the second improvement of the technical scheme lies in: the structure of the fin, material selection and the cooperation relation with the controller are improved, and the heat in the control box can be radiated efficiently outward through the fin. 3, the third improvement of the technical scheme lies in: the cooperation relation of the fin body on the fin and the fan on the motor is improved, and the air guide structure (including the air outlet and the baffle on both sides of the air outlet) is arranged on the cover of the fan, which is favorable for improving the heat dissipation effect of the fan on the fin, thereby being favorable for further improving the heat dissipation effect on the controller. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the controller related to the utility model.

[0018] Figure 2 It is Figure 1 a sectional view structural schematic view.

[0019] Figure 3 It is a structural schematic view of the circuit board related to the utility model.

[0020] Figure 4 It is a structural schematic view of the motor (the pump body is further provided on the motor in the drawing, and the outer end cover of the fan cover is not shown) or water pump (the motor is further provided on the pump body in the drawing, and the outer end cover of the fan cover is not shown) related to the utility model.

[0021] Figure 5 It is a structural schematic view of the fan cover related to the utility model.

[0022] In the drawing: 1, control box;2, circuit board;3, control area;4, power area;5, auxiliary area;6, base plate;7, fin body;8, heat conduction layer;9, circular arc edge;10, motor main body;11, fan blade;12, fan cover;13, air outlet;14, baffle;15, pump body. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be further specifically explained below by combining with the drawings. In the patent application, the direction "up" and "down" is in the direction of Figure 1 、 Figure 2 The direction above the drawing is up, and the direction below the drawing is down.

[0024] Example 1: as Figures 1-3The utility model relates to a first technical main body's technical scheme shown in the utility model relates to a kind of controller, including control box 1, circuit board 2 being arranged in control box 1.

[0025] The technical scheme is different from prior art in that: the circuit board 2 has spaced control area 3, power area 4 and auxiliary area 5, the control area 3 is provided with a control module, the power area 4 is provided with a power module, the auxiliary area 5 is provided with a power supply circuit module, the power supply circuit module is electrically connected with the power module and the control module, and the spacing between the control area 3 and the power area 4 achieves the purpose of thermal isolation.

[0026] In the technical scheme, the control module is used to realize the main control function of the controller, including MCU and other control chips, and the cost of the control module is relatively high. The control module needs to operate more stably in a relatively low temperature environment and is not easily damaged by high temperature. By arranging the control module in the control area 3 and spacing the control area 3 and the power area 4, the heat generated by the power module in the power area 4 can be greatly reduced from entering the control area 3, and the temperature of the control area 3 can be kept relatively low. Similarly, the power area 4 and the auxiliary area 5 are spaced, which is conducive to keeping the temperature of the auxiliary area 5 relatively low and protecting the power supply circuit module in the auxiliary area 5 from operating more stably.

[0027] In actual application, in order to pull apart the spacing distance as much as possible, thereby being conducive to reducing the influence of the heat generated by the power module in the power area 4 on the control module in the control area 3 as much as possible, the control area 3 and the power area 4 are arranged in two mutually opposite corner regions of the circuit board 2, and the control module is provided with at least a control chip.

[0028] In actual application, the circuit board can be rectangular, circular, elliptical or irregular in shape, as long as there is a certain spacing distance between the control area 3, the power area 4 and the auxiliary area 5, so as to reduce the adverse effects of the heat generated by the power module in the power area 4 on the control module in the control area 3 and the power supply circuit module in the auxiliary area 5 when the power module is working, thereby being conducive to improving the stability and reliability of the controller.

[0029] When the circuit board is rectangular or has multiple corner regions, the control area 3 and the power area 4 are often arranged in mutually opposite regions with a suitable spacing distance, and the specific shapes of the control area 3, the power area 4 and the auxiliary area 5 can be determined according to actual conditions, and are not limited to Figure 3 as shown.

[0030] When the circuit board is circular or elliptical, the control area 3, the power area 4 and the auxiliary area 5 are often arranged in three regions distributed in a triangular shape, and the specific shapes of the control area 3, the power area 4 and the auxiliary area 5 can be determined according to actual conditions, and are not limited to Figure 3As shown.

[0031] In practical application, the auxiliary area 5 is arranged at an edge area of the circuit board 2, the edge area is away from the control area 3 and the power area 4, and the power circuit module is provided with at least a power supply and a capacitor connected by a wire.

[0032] In the technical solution, the control area 3, the power area 4 and the auxiliary area 5 are arranged at different areas in three directions, which is beneficial to further reduce the influence of the heat generated by the power module in the power area 4 on the control module in the control area 3 and the power circuit module in the auxiliary area 5.

[0033] In practical application, the bottom of the control box 1 is provided with a cooling fin, the upper end of the cooling fin is arranged corresponding to the power area 4, and the cooling fin is also arranged corresponding to the fan part of the motor.

[0034] In the technical solution, the bottom of the control box 1 is additionally provided with a cooling fin, when the controller is applied to the motor, the cooling fin is arranged at a suitable position outside the fan, and the airflow formed by the operation of the fan can carry away part of the heat on the controller, which is beneficial to further reduce the heat inside the controller and improve the working stability of the controller, especially the working stability of the control module.

[0035] In practical application, the cooling fin includes a metal base plate 6 and a metal cooling fin body 7 arranged below the base plate 6 and extending downward and forming an integral structure with the base plate 6, the base plate 6 extends into the control box 1, and the upper surface of the base plate 6 is attached to the lower surface of the circuit board 2 through a heat conduction layer 8 and is arranged corresponding to the power area 4.

[0036] That is, the cooling fin is made of metal material with good heat dissipation effect, the metal base plate 6 at the upper end of the cooling fin directly extends into the inside of the control box 1, and the heat on the circuit board 2 can be efficiently transferred to the cooling fin through the heat conduction layer 8 (the material of the heat conduction layer 8 is selected from good heat conductors such as heat-conducting silicone grease), and then the cooling fin can efficiently dissipate heat.

[0037] In practical application, in order to improve the assembly reliability of the cooling fin, the cooling fin is stably and reliably connected with the circuit board 2 through a bolt to prevent the cooling fin from falling or shifting accidentally.

[0038] In practical application, the lower end of the cooling fin body 7 is concave in a circular arc shape, and the circular arc shape matches the outer diameter size of the fan part of the motor.

[0039] In the technical solution, the lower end of the fin body 7 is provided with an upwardly recessed empty part, which is beneficial to the nesting relationship of the fins and the fan forming a space, and is beneficial to the airflow generated by the fan to be in contact with the fins more, so that the heat on the fins can be carried away more efficiently, thereby being beneficial to effectively controlling the temperature inside the controller, and further being beneficial to the stability and reliability of the controller.

[0040] Embodiment 2: As shown in the technical scheme of the second technical subject of the utility model relates to a motor, including motor main body 10, be equipped with in the tail of motor main body 10 fan, be equipped with on the controller of motor main body 10. Figures 1-5

[0041] In the technical solution, the controller is the controller described in embodiment 1, and the fins on the controller are correspondingly arranged with the fan.

[0042] That is, the technical solution is an improved scheme based on the first technical solution, so it also has all the beneficial effects of the improved part of the first technical solution.

[0043] In actual application, the fins have a plurality of fin bodies 7, the lower end of the fin body 7 is provided with an upwardly recessed arc edge 9, and the arc edge 9 is buckled on the shell of the fan, and the spacing between the arc edge 9 and the shell is 2mm-15mm. In actual application, the spacing between the arc edge 9 and the shell is preferably 10mm, and of course, 7mm or 5mm or 12mm can also be selected.

[0044] The technical solution is beneficial to the airflow generated by the fan to enter the gap between the fin bodies 7, and the spacing between the fins and the fan shell is beneficial to prevent the heat generated by the motor from being conducted to the controller. The airflow generated by the fan not only carries away the heat generated by the motor itself, but also carries away the heat generated by the controller during operation, which is beneficial to the stable operation of the motor and the controller.

[0045] In actual application, the fan includes a fan blade 11, a fan cover 12 covering the outer end of the fan blade 11, an air outlet 13 provided on the side wall of the fan cover 12, and a baffle 14 provided on both sides of the air outlet 13. The baffle 14 and the side wall are an integral structure, the baffle 14 is folded outwardly from the side wall, and the radial dimension of the air outlet 13 is adapted to the radial dimension of the fin body 7.

[0046] ​This technical solution, by setting an air outlet 13 and a baffle 14 on the side wall of the fan, can confine most of the area of ​​the heat sink body 7 within the air outlet 13 between the two baffles 14. When the motor is running, the air generated by the fan will flow inside the fan cover 12 and then circulate to the outside through the side air outlet 13 and the end air outlet 13. With one fan, both the motor and the controller can be cooled, which is beneficial to improving the utilization rate of the fan and simplifying the structure.

[0047] Example 3: As Figures 1-5 As shown, the technical solution of the third technical subject involved in this utility model is: a water pump, including a pump body 15 and a motor connected to the pump body 15 and driving the impeller inside the pump body 15.

[0048] The difference from the prior art is that the motor is the motor described in Embodiment 2, the controller installed on the motor is the controller described in Embodiment 1, and the heat sink on the controller is correspondingly arranged with the fan.

[0049] Since this technical solution applies the improved technology of Embodiment 1, it has all the beneficial effects of the improved part of the first technical solution.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A controller comprising a control box (1), a circuit board (2) arranged in the control box (1), characterized in that The circuit board (2) has spaced control area (3), power area (4) and auxiliary area (5), the control area (3) is provided with control module, the power area (4) is provided with power module, the auxiliary area (5) is provided with power supply circuit module, the power supply circuit module is electrically connected with the power module and control module, the control area (3) and the power area (4) are spaced for the purpose of thermal isolation.

2. The controller of claim 1, wherein The control area (3), power area (4) are respectively arranged in two mutually facing away corner regions of the circuit board (2), and the control module is provided with at least a control chip.

3. The controller of claim 2, wherein The auxiliary area (5) is arranged in an edge region of the circuit board (2), the edge region is away from the control area (3) and power area (4), and the power supply circuit module is provided with at least a power supply and a capacitor connected by a wire.

4. The controller of any one of claims 1-3, wherein The bottom of the control box (1) is provided with a cooling fin, the upper end of the cooling fin is correspondingly arranged with the power area (4), and the cooling fin is also used for corresponding arrangement with the fan part on the motor.

5. The controller of claim 4, wherein The cooling fin includes a metal base plate (6) and a metal cooling fin body (7) extending downward below the base plate (6) and forming an integral structure with the base plate (6), the base plate (6) extends into the control box (1), and the upper surface of the base plate (6) is attached to the lower surface of the circuit board (2) through a heat-conducting layer (8) and is correspondingly arranged with the power area (4).

6. The controller of claim 5, wherein The lower end of the cooling fin body (7) is recessed in a circular arc shape upward, and the circular arc shape matches the outer diameter of the fan part on the motor.

7. An electric motor comprising an electric motor body (10), a fan provided at a rear portion of the electric motor body (10), and a controller provided on the electric motor body (10), characterized in that The controller is the controller of any one of claims 1-6, and the cooling fin on the controller is correspondingly arranged with the fan.

8. The electric machine of claim 7, wherein The cooling fin has a plurality of cooling fin bodies (7), the circular arc edge (9) of the lower end of the cooling fin body (7) is buckled on the shell of the fan, and the spacing between the circular arc edge (9) and the shell is 2-15 mm.

9. The electric machine of claim 8, wherein The fan includes a fan blade (11), a fan cover (12) covering the outer end of the fan blade (11), an air outlet (13) provided on the side wall of the fan cover (12), and a baffle (14) provided on both sides of the air outlet (13), the baffle (14) is an integral structure with the side wall, the baffle (14) is folded outward from the side wall, and the radial dimension of the air outlet (13) is matched with the radial dimension of the cooling fin body (7).

10. A water pump comprising a pump body (15), a motor connected to said pump body (15) and driving an impeller in said pump body (15), characterized in that The motor is the motor of any one of claims 7-9, the controller arranged on the motor is the controller of any one of claims 1-6, and the cooling fin on the controller is correspondingly arranged with the fan.

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