CN210093806U - A brushless motor controller - Google Patents

Abstract

The utility model relates to a brushless motor controller, which comprises a power driving board, a device body, a control board and a power board, wherein the inside of the device body is horizontally provided with a first heating panel and a second heating panel, the middle positions of the tops of the first heating panel and the second heating panel are respectively provided with a U-shaped cooling pipe, and cooling liquid is injected into the U-shaped cooling pipes, the tops of the first heating panel and the second heating panel at the two sides of the U-shaped cooling pipes are respectively provided with a mounting bar, and the mounting bars are respectively and evenly provided with a mounting hole, the top of the first heating panel is provided with the power driving board through the mutual matching of bolts and the mounting holes, the top of the second heating panel is provided with the control board through the mutual matching of bolts and the mounting holes, the inner side wall of the device body is wrapped with metal heat conducting fins, and the power board is arranged on the inner sides of the metal heat conducting fins at the, the utility model discloses the radiating rate is fast, and the radiating effect is good, and is dampproofing.

Description

A brushless motor controller

technical field

The utility model relates to the technical field of control equipment, in particular to a brushless motor controller.

Background technique

With the wide application of brushless motors in electric tools, the position setting of brushless motor controllers has also been paid attention to. It is composed of devices, main chips, capacitive components and inductive components, and its components are many and the volume is large.

However, in the existing brushless motor controller, the internal electronic components are in close contact with each other, so that a large amount of heat is generated during use. Due to the close contact between the electronic components, the heat cannot be quickly dissipated. , It is easy to cause the electronic components to be damaged due to poor heat dissipation effect, thereby causing damage to their internal parts and affecting their service life.

Utility model content

The purpose of the present invention is to provide a brushless motor controller to solve the above-mentioned problems in the background art.

To achieve the above object, the utility model provides the following technical solutions:

A brushless motor controller includes a power drive board, a device body, a control board and a power supply board, wherein a first heat dissipation plate and a second heat dissipation plate are horizontally arranged inside the device body, and the first heat dissipation plate and the second heat dissipation plate are horizontally arranged. A U-shaped cooling pipe is arranged at the middle position of the top of the heat dissipation plate, and cooling liquid is injected into the inside of the U-shaped cooling pipe. The tops of the first heat dissipation plate and the second heat dissipation plate on both sides of the U-shaped cooling pipe are provided with Mounting bars, and mounting holes are evenly arranged on the mounting bars, the top of the first heat dissipation plate is installed with the power drive plate through the mutual cooperation of the bolts and the mounting holes, and the top of the second heat dissipation plate is connected by the bolts and the mounting holes. A control board is installed in cooperation with each other, the inner side wall of the device body is covered with a metal heat-conducting sheet, and a power board is installed on the inner side of the metal heat-conducting sheet at the bottom of the second heat dissipation plate through bolts, and the power board and the power drive board are connected by wires. Connected to each other, the two sides of the device body are respectively installed with a first cover plate and a rear cover plate through bolts, and the middle position of the first cover plate is horizontally provided with an equipment outlet slot and a power outlet slot. The inside of the power outlet slot is respectively introduced into the equipment connection line and the power supply connection line, and one end of the equipment connection line and the power supply connection line extends to the inside of the device body and is connected to the power drive board and the power supply board respectively.

Preferably, the outer side of the metal heat-conducting sheet is uniformly provided with heat dissipation fins, and one side of the heat dissipation fin extends to the outer side of the device body.

Preferably, the tops of the first heat dissipation plate and the second heat dissipation plate are provided with a U-shaped groove matching with the U-shaped cooling pipe, and the depth of the U-shaped groove is set to be half of the cross section of the U-shaped cooling pipe, and the installation The sum of the height of the strip and the depth of the U-shaped groove is equal to the cross-section of the U-shaped cooling pipe.

Preferably, the first heat dissipation plate and the second heat dissipation plate are composed of copper elements with better thermal conductivity, and the first heat dissipation plate and the second heat dissipation plate are welded with the metal heat conduction sheet.

Preferably, the bottoms of the first heat dissipation plate and the second heat dissipation plate are both bonded with a moisture-absorbing sponge, and a moisture-absorbing cotton is bonded at the bottom of the moisture-absorbing sponge.

Compared with the prior art, the beneficial effects of the present utility model are:

1. In the brushless motor controller of the present invention, a first heat dissipation plate and a second heat dissipation plate are horizontally and horizontally arranged inside the device body, and a U-shape is arranged at the middle position of the top of the first heat dissipation plate and the second heat dissipation plate. Cooling pipe, inject coolant into the U-shaped cooling pipe, install the power drive board on the top of the first heat dissipation plate through the mutual cooperation of bolts and mounting holes, and install the power drive plate on the top of the second heat dissipation plate through bolts and mounting holes. A control board is installed in cooperation with each other, and the inner side wall of the device body is covered with a metal heat-conducting sheet, and the tops of the first and second heat-dissipating The depth of the groove is set to be half of the cross-section of the U-shaped cooling pipe, and the sum of the height of the mounting bar and the depth of the U-shaped cooling pipe is equal to the cross-section of the U-shaped cooling pipe. On the one hand, it is convenient to install the electronic components inside the device body in layers. , so as to increase the gap between electronic components and improve the speed of heat dissipation. At the same time, during the process of use, a certain gap is formed between the power drive board and the control board and the top of the first heat dissipation plate and the second heat dissipation plate, which further improves the heat dissipation effect. At the same time, the side of the U-shaped cooling pipe is in contact with the ground of the power drive board and the control board, and the interior of the U-shaped cooling pipe is provided with cooling liquid, so as to facilitate the conduction of heat and improve the efficiency of heat dissipation.

2. In the brushless motor controller of the present utility model, the moisture-absorbing sponge is bonded to the bottoms of the first cooling plate and the second cooling plate, and the moisture-absorbing cotton is bonded to the bottom of the moisture-absorbing sponge. Under the weather, it is easy to cause the moisture inside the device body to be too heavy, thus affecting the service life of the device body. The sponge body stores the moisture absorbed by the hygroscopic cotton to improve the service life of the electronic components inside the device body.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the top view structure schematic diagram of the radiator plate of the present invention;

FIG. 3 is a schematic side view of the structure of the heat dissipation plate of the present invention.

In the picture: 1-equipment connection cable, 2-equipment outlet slot, 3-first cover plate, 4-power drive board, 5-first heat dissipation plate, 6-rear cover plate, 7-device body, 8-metal heat-conducting sheet , 9- The second cooling plate, 10- Cooling fins, 11- Control board, 12- Power board, 13- Power outlet, 14- Power cable, 15- U-shaped cooling pipe, 16- Mounting strip, 17- Mounting hole, 18-hygroscopic sponge, 19-hygroscopic cotton.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-3, a brushless motor controller includes a power drive board 4, a device body 7, a control board 11 and a power supply board 12. The inside of the device body 7 is horizontally provided with a first heat dissipation plate 5 and a second heat dissipation plate 5. Two radiating plates 9, and U-shaped cooling pipes 15 are provided at the middle positions of the tops of the first radiating plates 5 and the second radiating plates 9, and cooling liquid is injected into the U-shaped cooling pipes 15. The U-shaped cooling pipes 15 Mounting bars 16 are provided on the tops of the first heat dissipation plate 5 and the second heat dissipation plate 9 on both sides, and mounting holes 17 are evenly provided on the mounting bars 16. The top of the first heat dissipation plate 5 is connected to the mounting holes 17 by bolts. The power drive board 4 is installed in coordination, and the control board 11 is installed on the top of the second heat dissipation plate 9 through the mutual cooperation of the bolts and the installation holes 17. The inner side wall of the device body 7 is covered with a metal heat-conducting sheet 8. The power board 12 is installed on the inner side of the metal heat-conducting sheet 8 at the bottom of the two heat sinks 9 by bolts, and the power board 12 and the power drive board 4 are connected to each other by wires. The rear cover plate 6, and the middle position of the first cover plate 3 is provided with the equipment outlet slot 2 and the power outlet slot 13 horizontally and horizontally, and the equipment connection wire 1 and the power supply are respectively introduced into the equipment outlet slot 2 and the power outlet slot 13. The connecting wire 14, and one end of the device connecting wire 1 and the power connecting wire 14 extends to the inside of the device body 7 and is connected to the power driving board 4 and the power board 12 respectively.

In the present invention, the outer side of the metal heat-conducting sheet 8 is uniformly provided with heat dissipation fins 10 , and one side of the heat dissipation fin 10 extends to the outer side of the device body 7 .

In the present invention, the tops of the first radiating plate 5 and the second radiating plate 9 are provided with U-shaped grooves matching with the U-shaped cooling pipes 15 , and the depth of the U-shaped grooves is set to the cross section of the U-shaped cooling pipes 15 . , and the sum of the height of the mounting strip 16 and the depth of the U-shaped groove is equal to the cross-section of the U-shaped cooling pipe 15 .

In the present invention, the first heat dissipation plate 5 and the second heat dissipation plate 9 are composed of copper elements with good thermal conductivity, and the first heat dissipation plate 5 and the second heat dissipation plate 9 and the metal heat conduction sheet 8 are welded to each other.

In the present invention, the bottoms of the first heat dissipation plate 5 and the second heat dissipation plate 9 are bonded with a moisture-absorbing sponge 18 , and a moisture-absorbing cotton 19 is bonded at the bottom of the moisture-absorbing sponge 18 .

The working principle of the present invention is as follows: first, when using the controller, insert the device body 7 into the bolt holes at the bottom of the first cover plate 3 and the rear cover plate 6 through bolts, so as to install the device body 7 at the designated position It is connected to the brushless motor through the equipment connection line 1, and is connected to the battery through the power connection line 14. During the power-on use of the power drive board 4, the control board 11 and the power board 12 inside the device body 7, it is easy to A large amount of heat is generated, and at the same time, the electronic components are in close contact with each other, so that the heat cannot be quickly discharged, which is easy to cause damage to the electronic components, so that the power drive board 4 can be bolted to the first cooling plate 5. Mounting holes on the top mounting bar 16 17 cooperate with each other to fixedly install the power drive board 4, and at the same time, the control board 11 can be fitted with the mounting holes 17 on the top mounting strip 16 of the second heat dissipation plate 9 through bolts to fix the control board 11, and then the power supply. The plate 12 is fixed on the inner side wall of the metal heat-conducting sheet 8 by bolts, so that the electronic components inside the device body 7 are installed in layers, thereby increasing the gap between the electronic components and improving the speed of heat dissipation. The cross section of the U-shaped cooling pipe 15 is equal to the sum of the thickness of the mounting strip 16 and the depth of the groove at the middle position of the first heat dissipation plate 5, so that during the use of the power driving board 4 and the control board 11, the power driving board 4 and the control board 11 and the top of the first heat dissipation plate 5 and the second heat dissipation plate 9 generate a certain gap, so that when in use, the heat dissipation effect is further improved, and the side of the U-shaped cooling pipe 15 is connected to the power drive plate 4. It is in contact with the ground of the control board 11, and at the same time, the interior of the U-shaped cooling pipe 15 is provided with cooling liquid, so as to facilitate the conduction of heat and improve the efficiency of heat dissipation. The heat dissipation plate 5 and the second heat dissipation plate 9 are welded to each other, and at the same time, the power plate 12 is fixedly connected to the metal heat-conducting sheet 8, so that the heat is quickly absorbed to the metal heat-conducting sheet 8, and finally passes through the uniform heat dissipation fins on the outside of the device body 7. 0. The heat absorbed by the metal heat-conducting sheet 8 is exported to improve the efficiency of heat dissipation. At the same time, in the long-term humid weather, it is easy to cause excessive moisture inside the device body 7, thereby affecting the service life of the device body 7. The moisture-absorbing cotton 19 at the bottom of the first heat-dissipating plate 5 and the second heat-dissipating plate 9 absorbs the moisture inside the device body 7 , and then stores the moisture absorbed by the moisture-absorbing cotton 19 through the moisture-absorbing sponge 18 to improve the electronic components inside the device body 7 service life.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still understand the foregoing. The technical solutions recorded in each embodiment are modified, or some technical features thereof are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (5)

1. A brushless motor controller, comprising a power drive board (4), a device body (7), a control board (11) and a power supply board (12), characterized in that: the internal transverse direction of the device body (7) A first heat dissipation plate (5) and a second heat dissipation plate (9) are arranged horizontally, and U-shaped cooling pipes (15) are provided at the intermediate positions of the tops of the first heat dissipation plate (5) and the second heat dissipation plate (9). , and the inside of the U-shaped cooling pipe (15) is filled with cooling liquid, and the tops of the first heat dissipation plate (5) and the second heat dissipation plate (9) on both sides of the U-shaped cooling pipe (15) are provided with mounting strips (16), and the mounting strips (16) are uniformly provided with mounting holes (17), and the top of the first heat dissipation plate (5) is fitted with a power drive plate (4) through the mutual cooperation of bolts and the mounting holes (17). ), and a control board (11) is installed on the top of the second heat dissipation plate (9) through the mutual cooperation of bolts and mounting holes (17), and the inner side wall of the device body (7) is covered with a metal heat-conducting sheet ( 8), and a power supply board (12) is installed on the inner side of the metal heat-conducting sheet (8) at the bottom of the second heat dissipation plate (9) through bolts, and the power supply board (12) and the power drive board (4) are connected to each other by wires, so The two sides of the device body (7) are respectively installed with a first cover plate (3) and a rear cover plate (6) through bolts, and the equipment outlet groove (2) is horizontally and horizontally arranged in the middle of the first cover plate (3). and the power outlet slot (13), and enter the device connection wire (1) and the power connection wire (14) respectively inside the equipment outlet slot (2) and the power outlet slot (13), and the device connection wire (1) and One end of the power connection wire (14) extends to the inside of the device body (7) and is respectively connected to the power drive board (4) and the power board (12). 2 . The brushless motor controller according to claim 1 , wherein the outer side of the metal heat-conducting sheet ( 8 ) is evenly provided with cooling fins ( 10 ), and one side of the cooling fin ( 10 ) Extend to the outside of the device body (7). 3. A brushless motor controller according to claim 1, characterized in that: the tops of the first heat dissipation plate (5) and the second heat dissipation plate (9) are provided with a U-shaped cooling pipe (15) on top of each other. Matching U-shaped groove, and set the depth of the U-shaped groove to be half of the cross-section of the U-shaped cooling pipe (15), and the sum of the height of the mounting strip (16) and the depth of the U-shaped groove is the same as the U-shaped cooling pipe (15) The cross sections are equal. 4. A brushless motor controller according to claim 1, characterized in that: the first heat dissipation plate (5) and the second heat dissipation plate (9) are composed of copper elements with good thermal conductivity, and the first heat dissipation plate (5) and the second heat dissipation plate (9) are composed of copper elements with good thermal conductivity. The heat dissipation plate (5), the second heat dissipation plate (9) and the metal heat conducting sheet (8) are welded to each other. 5. A brushless motor controller according to claim 1, characterized in that: the bottoms of the first heat dissipation plate (5) and the second heat dissipation plate (9) are both bonded with a moisture-absorbing sponge (18), And a moisture-absorbing cotton (19) is bonded to the bottom of the moisture-absorbing sponge body (18).

Images