CN210840503U - Improved heat dissipation device for power controller - Google Patents

Abstract

The utility model discloses an improved heat dissipation device for a power controller, which comprises a casing, a cooling coil and a cooling liquid tank. The top of the casing is fastened with a cover plate, and the bottom of the casing is provided with a cooling liquid The bottom of the cooling liquid tank is fixed with a mounting bottom plate, and four corners of the mounting bottom plate are provided with mounting holes, a temperature sensor is installed on the inner wall of one side of the casing, and the bottom end inside the casing is provided with a temperature sensor. Cooling tank, the interior of the cooling tank is evenly laid with cooling coils, a first opening and a second opening are respectively opened at the middle positions of both ends of the shell, and a blower fan and a suction fan are installed in the inside of the first opening and the second opening respectively. A fan, and the blowing fan and the exhausting fan are respectively electrically connected with the single-chip microcomputer through wires. The utility model realizes the rapid heat dissipation inside the controller casing by means of air cooling and water cooling, with good heat dissipation effect and high efficiency.

Description

An improved heat sink for power controller

technical field

The utility model relates to the technical field of power controllers, in particular to an improved heat dissipation device for power controllers.

Background technique

Power controller refers to the main command device that changes the wiring of the main circuit or the control circuit and changes the resistance value in the circuit in a predetermined order to control the starting, speed regulation, braking and reverse direction of the motor. It contains high-power electrical components. The temperature of electrical components directly affects their performance, so it is extremely important to quickly dissipate heat for high-power controllers.

At present, the cooling structure of the power controller basically adopts the method of self-dissipating heat through air holes, which generally has the following defects:

The self-dissipation method of air holes is adopted, which has poor heat dissipation effect and low heat transfer efficiency;

By adopting the method of self-heat dissipation through air holes, it is easy to cause dust to fall into the inside of the controller through the air holes with the accumulation of time, which affects the heat dissipation effect, accelerates the aging of electrical components, and reduces the service life;

The self-cooling method of air holes cannot guarantee the continuous cooling effect of the controller in the working state.

Utility model content

The purpose of this utility model is to provide an improved heat dissipation device for a power controller, so as to solve the problem of poor heat dissipation effect and low heat transfer efficiency proposed in the above-mentioned background technology; it is easy to cause dust to fall into the control device through the air hole with the accumulation of time. The inside of the controller will affect the heat dissipation effect; the continuous heat dissipation effect of the controller cannot be guaranteed under the working state.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an improved heat dissipation device for a power controller, comprising a casing, a cooling coil and a cooling liquid tank, and a cover plate is fastened on the top of the casing, The bottom of the casing is provided with a cooling liquid tank, and the bottom of the cooling liquid tank is fixed with a mounting base plate, and four corner positions of the mounting base plate are provided with mounting holes, and a temperature sensor is installed on the inner wall of one side of the casing. The output end of the sensor is electrically connected to the input end of the single-chip microcomputer provided at one end of the cooling liquid tank through a wire, and a cooling groove is arranged at the bottom end of the inside of the casing. A first opening and a second opening are respectively opened at the positions, and a blowing fan and a suction fan are respectively installed in the inside of the first opening and the second opening, and the blowing fan and the suction fan are respectively electrically connected with the single-chip microcomputer through wires.

Preferably, a mounting groove is provided at the inner bottom end of the housing outside the cooling groove, an electrical installation board is installed inside the installation groove, and a copper heat conduction plate is arranged in the center of the electrical installation board, and the bottom of the copper heat conduction plate is connected to the cooling The top of the cooling coil on the inside of the tank is fitted.

Preferably, protective covers are installed on both ends of the casing outside the first opening and the second opening through bolts, dust filters are installed in the middle of the protective covers, and a handle is provided on the top of the dust filters.

Preferably, the side wall of the protective cover is provided with a card slot, the width of the card slot is equal to the thickness of the dust filter, and the dust filter is detachably inserted into the card slot of the protective cover.

Preferably, radiating fins are evenly arranged on the outer walls on both sides of the cooling liquid tank, and one end of the cooling fins extends to the inside of both sides of the cooling liquid tank.

Preferably, a micro-circulating water pump is installed inside one end of the cooling liquid tank, the micro-circulating water pump is electrically connected to the single-chip microcomputer through a wire, and the output end of the micro-circulating water pump is connected to the input end of the cooling coil through a water inlet pipe, and the cooling coil is at the same time. The output end is connected to the coolant tank through the return pipe.

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

(1) In the improved heat dissipation device for power controller, a cooling groove is arranged at the inner bottom end of the housing under the electrical installation board, and a cooling coil is installed inside the cooling groove, and cooling water is used to cool the inside of the cooling coil. The way of circulating flow, cooperate with the copper heat-conducting plate set on the electrical installation board, realize the water-cooling heat exchange inside the casing. The circulation of the air inside the body, through the double heat dissipation of air cooling and water cooling, realizes the rapid heat dissipation inside the controller shell, with good heat dissipation effect and high efficiency;

(2) In the improved heat dissipation device for the power controller, by installing protective covers at both ends of the casing outside the first opening and the second opening, and installing a dust filter at the middle of the protective cover, the inside and outside In the process of air circulation and heat dissipation, avoid dust from falling into the inside of the controller casing, and the side wall of the protective cover is provided with a card slot, and the width of the card slot is equal to the thickness of the dust filter, so that the dust filter can be detachably inserted. Connected to the inside of the card slot of the protective cover, it is convenient to disassemble, clean and replace the dust filter regularly, and it is easy to use;

(3) The improved heat dissipation device for the power controller can monitor the temperature of the controller in real time under the running state by setting a temperature sensor inside the casing and a single-chip microcomputer at one end of the coolant tank, so that the temperature can be monitored according to the temperature. The height of the controller can control the heat dissipation, so as to ensure the continuous heat dissipation effect under the working state of the controller, and the heat dissipation fins set on both sides of the coolant tank can ensure the rapid heat dissipation of the cooling liquid returning through the cooling coil, thereby ensuring the cooling effect of the cooling liquid.

Description of drawings

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

Fig. 2 is the side view sectional structure schematic diagram of the utility model;

Fig. 3 is the left side view structure schematic diagram of the present utility model;

4 is a schematic structural diagram of an electrical appliance mounting plate of the present invention;

FIG. 5 is an enlarged schematic view of the structure at A in FIG. 1 of the present utility model.

In the figure: 1. shell; 101, installation groove; 102, cooling groove; 103, first opening; 104, second opening; 2, cooling coil; 201, return pipe; 202, water inlet pipe; 3, temperature sensor ;4, protective cover; 401, card slot; 5, blower fan; 6, dust filter; 7, exhaust fan; 8, installation bottom plate; 9, electrical installation plate; 901, copper heat conduction plate; 10, coolant box; 1001, cooling fins; 11, micro circulating water pump; 12, cover plate; 13, single chip microcomputer.

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.

1-5, an embodiment of the present invention: an improved heat dissipation device for a power controller, comprising a casing 1, a cooling coil 2 and a cooling liquid tank 10, the top of the casing 1 is A cover plate 12 is buckled, and a cooling liquid tank 10 is arranged at the bottom of the casing 1;

Heat dissipation fins 1001 are evenly arranged on the outer walls of both sides of the cooling liquid tank 10 , and one end of the heat dissipation fins 1001 extends to the inside of both sides of the cooling liquid tank 10 , which can ensure the rapid heat dissipation of the cooling liquid returning through the cooling coil 2 , thereby Ensure the cooling effect of the coolant;

One end inside the coolant tank 10 is installed with a micro-circulating water pump 11. The model of the micro-circulating water pump 11 can be P4504. The micro-circulating water pump 11 is electrically connected to the single-chip microcomputer 13 through wires, and the output end of the micro-circulating water pump 11 is connected to the cooling system through the water inlet pipe 202. The input end of the coil 2 is connected, and the output end of the cooling coil 2 is communicated with the coolant tank 10 through the return pipe 201. The internal circulation of the water pipe 201 achieves the effect of water cooling and heat exchange;

The bottom of the cooling liquid tank 10 is fixed with an installation base plate 8, and four corner positions of the installation base plate 8 are provided with installation holes, and a temperature sensor 3 is installed on the inner wall of one side of the casing 1, and the model of the temperature sensor 3 can be PT100, The output end of the temperature sensor 3 is electrically connected to the input end of the single-chip microcomputer 13 provided at one end of the cooling liquid tank 10 through a wire. Cooling coils 2 are evenly laid inside;

The inner bottom end of the housing 1 outside the cooling tank 102 is provided with a mounting slot 101, the interior of the mounting slot 101 is mounted with an electrical installation board 9, and the center of the electrical installation board 9 is provided with a copper heat conduction plate 901, The bottom is attached to the top of the cooling coil 2 inside the cooling tank 102. The cooling liquid in the cooling tank 10 circulates in the water inlet pipe 202, the cooling coil 2, and the return pipe 201. The cooling coil 2 and the electrical installation board 9 The copper heat-conducting plate 901 performs effective heat exchange to reduce the heat inside the casing 1;

A first opening 103 and a second opening 104 are respectively opened at the intermediate positions of the two ends of the casing 1. The inside of the first opening 103 and the second opening 104 are respectively installed with a blowing fan 5 and a suction fan 7, and the blowing fan 5 and the suction fan are respectively installed. 7 are respectively electrically connected with the single-chip microcomputer 13 through wires;

Both ends of the casing 1 on the outside of the first opening 103 and the second opening 104 are installed with a protective cover 4 through bolts, and a dust filter 6 is installed in the middle of the protective cover 4, and the top of the dust filter 6 is provided with a Pull the handle, the side wall of the protective cover 4 is provided with a card slot 401, the width of the card slot 401 is equal to the thickness of the dust filter 6, and the dust filter 6 can be detachably inserted into the card slot 401 of the protective cover 4. The dust filter 6 can prevent dust from falling into the interior of the housing 1 during the process of circulating air inside and outside the housing 1 to dissipate heat, and it is convenient to disassemble, clean and replace the dust filter 6 regularly, and is convenient to use.

Working principle: When in use, the temperature sensor 3 monitors the internal temperature of the housing 1 in real time, and transmits the signal to the single-chip microcomputer 13. During the operation of the power controller, when the internal temperature of the housing 1 reaches the preset temperature, the single-chip microcomputer 13 controls the micro-circulating water pump 11. And the blowing fan 5 and the suction fan 7 are started, and the micro-circulating water pump 11 drives the cooling liquid inside the cooling liquid tank 10 to circulate in the water inlet pipe 202, the cooling coil pipe 2, and the water return pipe 201. The copper heat-conducting plate 901 performs effective heat exchange and reduces the heat inside the casing 1. At the same time, the blowing fan 5 and the exhaust fan 7 realize air cooling and heat dissipation inside the casing 1, and the casing is realized by means of air cooling and water cooling. 1 Rapid heat dissipation inside, good heat dissipation effect and high efficiency.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. An improved heat sink for a power controller, comprising a housing (1), a cooling coil (2) and a coolant tank (10), characterized in that: the top of the shell (1) is buckled with a cover plate (12), the bottom of the shell (1) is provided with a cooling liquid box (10), the bottom of the cooling liquid box (10) is fixedly provided with a mounting base plate (8), four corner positions of the mounting base plate (8) are all provided with mounting holes, the inner wall of one side of the shell (1) is provided with a temperature sensor (3), the output end of the temperature sensor (3) is electrically connected with the input end of a single chip microcomputer (13) arranged at one end of the cooling liquid box (10) through a lead, the bottom end inside the shell (1) is provided with a cooling tank (102), a cooling coil (2) is uniformly laid inside the cooling tank (102), the middle positions at the two ends of the shell (1) are respectively provided with a first opening (103) and a second opening (104), and the inside of the first opening (103) and the second opening (104) is respectively provided with a blowing fan (5) and a suction fan (, and the air blowing fan (5) and the air suction fan (7) are respectively and electrically connected with the singlechip (13) through leads.

2. An improved heat sink for a power controller, as defined in claim 1, wherein: the cooling device is characterized in that a mounting groove (101) is formed in the bottom end of the inside of the shell (1) on the outer side of the cooling tank (102), an electric appliance mounting plate (9) is mounted inside the mounting groove (101), a copper heat conducting plate (901) is arranged at the center of the electric appliance mounting plate (9), and the bottom of the copper heat conducting plate (901) is attached to the top of the cooling coil (2) on the inner side of the cooling tank (102).

3. An improved heat sink for a power controller, as defined in claim 1, wherein: protection casing (4) are all installed through the bolt in casing (1) both ends in first opening (103) and second opening (104) outside, and protection casing (4) intermediate position department all installs dustproof filter screen (6), and the top of dustproof filter screen (6) is provided with the handle.

4. An improved heat sink for a power controller as recited in claim 3, wherein: the side wall of protection casing (4) is provided with draw-in groove (401), and the width of draw-in groove (401) equals with the thickness of dustproof filter screen (6), and inside dustproof filter screen (6) can be dismantled and peg graft in draw-in groove (401) of protection casing (4).

5. An improved heat sink for a power controller, as defined in claim 1, wherein: the cooling device is characterized in that radiating fins (1001) are uniformly arranged on the outer walls of two sides of the cooling liquid tank (10), and one ends of the radiating fins (1001) extend to the inner portions of two sides of the cooling liquid tank (10).

6. An improved heat sink for a power controller, as defined in claim 1, wherein: miniature circulating water pump (11) are installed to the inside one end of coolant liquid case (10), and miniature circulating water pump (11) are connected through wire and singlechip (13) electricity, and the output of miniature circulating water pump (11) passes through inlet tube (202) and is connected with the input of cooling coil (2), and the output of cooling coil (2) passes through wet return (201) and coolant liquid case (10) intercommunication simultaneously.

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