CN218041191U

CN218041191U - Mining frequency converter of permanent magnet synchronous motor

Info

Publication number: CN218041191U
Application number: CN202222378875.8U
Authority: CN
Inventors: 张福贵; 张东方; 刘甲; 杜莉; 夏宏强
Original assignee: Jiaozuo Huachen Electronic Technology Co ltd
Current assignee: Jiaozuo Huachen Electronic Technology Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-13
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a mining converter of permanent magnet synchronous motor, include: the frequency converter body and install the base in frequency converter body bottom, the frequency converter body adopts the wire to be connected with permanent magnet synchronous motor, and a plurality of louvre has been seted up at the top of frequency converter body, and the internally mounted of louvre has the cooling box, and the aqueduct is installed respectively to the top both sides of cooling box, installs the connecting pipe between the adjacent cooling box. The utility model discloses set up a plurality of louvre at the top of converter, inside outside air entered into the converter through the louvre, cool down to converter inside, the cooling box has all been installed to the louvre inside, outside air shunts through the cooling hole on cooling box surface after entering into the louvre inside, in-process through the cooling hole leads to cooling hole inner wall and downstream with the air inlet through the wind-guiding awl, carry out the heat exchange with cooling hole inner wall, the air that makes to get into in the converter is the low temperature air, improve the cooling effect.

Description

Mining frequency converter of permanent magnet synchronous motor

Technical Field

The utility model relates to a mining converter technical field, more specifically are a mining converter of permanent magnet synchronous motor.

Background

The frequency converter is a power control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor, and the universal frequency converter is rapidly and widely applied along with the gradual maturity and perfection of a low-voltage alternating current frequency conversion speed regulation technology. The mining permanent magnet synchronous motor adopts a mining frequency converter for power supply. The heat dissipation mode of the mining frequency converter is mainly a forced air cooling heat dissipation mode, and the mode needs to be provided with a ventilator and a radiator at the same time, so that the mining frequency converter has the advantage of good heat dissipation effect.

At present, the current mining converter sends into the converter with outside air when using inside and plays the radiating effect, but mining converter ambient temperature is higher, and outside air enters into the cooling effect behind the converter is inside obviously not enough, influences the converter normal use. For this reason, a new scheme needs to be designed to give improvements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining converter of permanent magnet synchronous motor has solved current mining converter and has sent into the inside radiating effect that plays of converter with outside air when using, but mining converter ambient temperature is higher, and outside air enters into the cooling effect after the converter is inside obviously not enough, influences the problem of converter normal use, satisfies the in-service use demand.

In order to achieve the above purpose, the utility model provides a following technical scheme: a mining frequency converter of a permanent magnet synchronous motor comprises: the converter body and install the base in converter body bottom, the converter body adopts the wire to be connected with permanent magnet synchronous motor, a plurality of louvre has been seted up at the top of converter body, the internally mounted of louvre has the cooling box, and the aqueduct is installed respectively to the top both sides of cooling box, installs the connecting pipe between the adjacent cooling box, is located left cooling box top and is fixed with the wet return, and the cooling box top that is located the right side is fixed with the inlet tube, and the bottom of cooling box extends to this internal and installs the fan of converter, and a plurality of cooling hole has evenly been seted up on the surface of cooling box.

As the utility model discloses an optimal mode, the internally mounted in cooling hole has the wind-guiding awl that three equidistance of group distribute, the opening of wind-guiding awl is downward and edge and the laminating of cooling downthehole wall, and the wind-guiding hole has been seted up to the edge of wind-guiding awl, and the aperture in three wind-guiding holes of group from top to bottom increases gradually.

As an optimal mode of the utility model, the top both sides that drainage chamber and drainage chamber were seted up to the inside of cooling box communicate with the aqueduct respectively.

As the utility model discloses a preferred mode, the left side wall mounting of converter body has the return water to be responsible for and the return water is responsible for the upper end and the wet return be connected, and the right side wall mounting of converter body has the upper end and the water piping connection that the person in charge of and the person in charge of intaking, and the bottom surface mid-mounting of converter body has the water tank.

As the utility model discloses an optimal mode, the semiconductor refrigeration piece is installed to the bottom of water tank, inside the water tank was arranged in to the cold junction of semiconductor refrigeration piece, the liquid pump was still installed to the inside of water tank, the output and the person in charge intercommunication that intakes of liquid pump.

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

the utility model discloses, set up a plurality of louvre at the top of converter, inside outside air entered into the converter through the louvre, cool down to converter inside, the cooling box has all been installed to the louvre inside, outside air shunts through the cooling hole on cooling box surface after entering into the louvre inside, in-process through the cooling hole leads to cooling hole inner wall and downstream with the air inlet through the wind-guiding awl, carry out the heat exchange with cooling hole inner wall, the air that makes to get into in the converter is the low temperature air, improve the cooling effect.

Drawings

Fig. 1 is a structural diagram of a mining frequency converter of a permanent magnet synchronous motor according to the present invention;

fig. 2 is a front view of the mining frequency converter with the permanent magnet synchronous motor according to the present invention;

figure 3 is the structure diagram of the cooling box of the utility model.

In the figure, 1, a base; 2. a frequency converter body; 3. heat dissipation holes; 4. a cooling box; 5. a connecting pipe; 6. a water conduit; 7. a water inlet pipe; 8. a water return pipe; 9. a water return main pipe; 10. a semiconductor refrigerating sheet; 11. a water tank; 12. a liquid pump; 13. a main water inlet pipe; 14. a drainage cavity; 15. a cooling hole; 16. a wind guide cone; 17. a wind guide hole; 18. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a mining frequency converter of a permanent magnet synchronous motor comprises: converter body 2 and install base 1 in 2 bottoms of converter body, converter body 2 adopts the wire to be connected with permanent magnet synchronous motor, a plurality of louvre 3 has been seted up at the top of converter body 2, louvre 3 is with the leading-in converter of outside air in, cool down to inside, the internally mounted of louvre 3 has cooling box 4, cooling box 4 cools down to admitting air, the air of guaranteeing to enter into in the converter is low temperature air, guarantee the cooling effect, aqueduct 6 is installed respectively to cooling box 4's top both sides, install connecting pipe 5 between the adjacent cooling box 4, connecting pipe 5 is with cooling liquid to the interior water conservancy diversion of adjacent cooling box 4, it is fixed with wet return 8 to be located left cooling box 4 top, cooling box 4 top that is located the right side is fixed with inlet tube 7, cooling box 4's bottom extends to converter body 2 and installs fan 18, a plurality of cooling hole 15 has evenly been seted up on cooling box 4's surface, cooling box 4's top installation filter screen filters the particulate matter that admits air, filter in the air.

Furtherly, the internally mounted of cooling hole 15 has wind-guiding awl 16 that three equidistance distribute, and the opening of wind-guiding awl 16 is downward and edge and 15 inner walls laminating in cooling hole, and wind-guiding hole 17 has been seted up to the edge of wind-guiding awl 16, and the aperture of three wind-guiding holes 17 of group from top to bottom increases progressively, and wind-guiding awl 16 plays the guide effect to the air inlet, makes the laminating of admitting air flow at 15 inner walls in cooling hole, improves the heat transfer effect.

Further improved, the inside of cooling box 4 is seted up and is led liquid cavity 14 and the top both sides of leading liquid cavity 14 communicate with aqueduct 6 respectively, and the inside circulation cooling liquid that leads liquid cavity 14.

In a further improved mode, a water return main pipe 9 is installed on the left side wall of the frequency converter body 2, the upper end of the water return main pipe 9 is connected with a water return pipe 8, a water inlet main pipe 13 is installed on the right side wall of the frequency converter body 2, the upper end of the water inlet main pipe 13 is connected with a water inlet pipe 7, a water tank 11 is installed in the middle of the bottom surface of the frequency converter body 2, cooling liquid is stored in the water tank 11 and is discharged through a water outlet main pipe, and the water return main pipe 9 returns liquid.

Specifically, semiconductor refrigeration piece 10 is installed to the bottom of water tank 11, and inside water tank 11 was arranged in to the cold junction of semiconductor refrigeration piece 10, semiconductor refrigeration piece 10 cooled down 11 inside cooling liquid of water tank, and liquid pump 12 is still installed to the inside of water tank 11, and the output of liquid pump 12 and the person in charge 13 intercommunication of intaking, liquid pump 12 provide out water power.

The utility model discloses when using, top at the converter sets up a plurality of louvre 3, outside air passes through louvre 3 and enters into inside the converter, cool down to converter inside, cooling box 4 has all been installed inside the louvre 3, outside air shunts through cooling hole 15 on cooling box 4 surfaces after entering into louvre 3 inside, in-process through cooling hole 15 leads to cooling hole 15 inner wall and downward flow with the air inlet through wind-guiding awl 16, carry out the heat exchange with cooling hole 15 inner wall, the air that makes in the entering converter is the low temperature air, improve the cooling effect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mining frequency converter of a permanent magnet synchronous motor comprises: converter body (2) and install base (1) in converter body (2) bottom, converter body (2) adopt the wire to be connected its characterized in that with permanent magnet synchronous motor: a plurality of louvre (3) have been seted up at the top of converter body (2), the internally mounted of louvre (3) has cooling box (4), and aqueduct (6) are installed respectively to the top both sides of cooling box (4), install between adjacent cooling box (4) connecting pipe (5), are located left cooling box (4) top and are fixed with wet return (8), and cooling box (4) top that is located the right side is fixed with inlet tube (7), and the bottom of cooling box (4) extends to in converter body (2) and installs fan (18), and a plurality of cooling hole (15) have evenly been seted up on the surface of cooling box (4).

2. The mining frequency converter with the permanent magnet synchronous motor according to claim 1, characterized in that: the cooling hole (15) is internally provided with three groups of wind guide cones (16) which are distributed at equal intervals, the opening of each wind guide cone (16) faces downwards, the edge of each wind guide cone (16) is attached to the inner wall of the cooling hole (15), wind guide holes (17) are formed in the edge of each wind guide cone (16), and the aperture of each wind guide hole (17) is increased from top to bottom.

3. The mining frequency converter of the permanent magnet synchronous motor according to claim 1, characterized in that: the inside of cooling box (4) is seted up and is led drainage cavity (14) and the top both sides of leading drainage cavity (14) communicate with aqueduct (6) respectively.

4. The mining frequency converter of the permanent magnet synchronous motor according to claim 1, characterized in that: the frequency converter is characterized in that a backwater main pipe (9) is installed on the left side wall of the frequency converter body (2), the upper end of the backwater main pipe (9) is connected with a backwater pipe (8), a water inlet main pipe (13) is installed on the right side wall of the frequency converter body (2), the upper end of the water inlet main pipe (13) is connected with a water inlet pipe (7), and a water tank (11) is installed in the middle of the bottom surface of the frequency converter body (2).

5. The mining frequency converter with the permanent magnet synchronous motor according to claim 4, characterized in that: semiconductor refrigeration piece (10) are installed to the bottom of water tank (11), inside water tank (11) were arranged in to the cold junction of semiconductor refrigeration piece (10), liquid pump (12) were still installed to the inside of water tank (11), the output and the person in charge of intaking (13) intercommunication of liquid pump (12).