CN213637467U

CN213637467U - Explosion-proof frequency converter and cooling device thereof

Info

Publication number: CN213637467U
Application number: CN202022804455.2U
Authority: CN
Inventors: 郝俊杰; 陈雨; 秦永强; 肖仁喜; 陈改朝; 陈海潮; 张久祥; 董强; 韩报
Original assignee: Anhui Derui Intelligent Technology Co ltd
Current assignee: Anhui Derui Intelligent Technology Co ltd
Priority date: 2020-11-29
Filing date: 2020-11-29
Publication date: 2021-07-06
Anticipated expiration: 2030-11-29

Abstract

The utility model belongs to the technical field of frequency converter equipment, in particular to an explosion-proof frequency converter and a cooling device thereof, which comprises a main box body, wherein the front end of the main box body is provided with a cooling box, the inner side of the cooling box is provided with a filter layer, the left end of a connecting hole of the cooling box is provided with a drain hole, the inner side of the main box body is provided with a cooling layer, the inner side of the cooling layer is provided with a bottom plate, the inner side of the cooling layer is provided with a cooling baffle plate, the mutual communication between the cooling layer and the cooling box and the circulating flow of cooling liquid are realized through the installation arrangement of a water inlet pipe and the drain pipe, the cooling liquid is conveyed out through the connecting hole of the cooling box and then is conveyed to the drain hole through the drain hole, and then the cooling liquid flows into a cooling cavity through the drain hole, then the cooling liquid flows into the water inlet pipe through the water inlet hole and then flows into the cooling box.

Description

Explosion-proof frequency converter and cooling device thereof

Technical Field

The utility model belongs to the technical field of the converter equipment, concretely relates to explosion-proof converter and cooling device thereof.

Background

At present, most of low-voltage high-power explosion-proof frequency converters adopt a heat pipe radiator, the heat of a power module is directly transmitted out of an explosion-proof box body by utilizing the rapid heat conduction characteristic of a heat pipe, the heat pipe radiation needs a specially-made radiating substrate, one side of the substrate is used for embedding and welding the hot end of the heat pipe, the other side of the substrate is used for installing the power module, the substrate is used as one part of an enclosing plate of the explosion-proof box and needs to be connected with a flange of the explosion-proof box, therefore, when the explosion-proof frequency converter is installed, a core of the frequency converter needs to be disassembled, an original radiator is replaced, the power module, a direct-current bus bar, a filter capacitor and a main control trigger plate are sequentially installed on the radiating substrate, the modified core of the frequency converter is influenced by the installation structure and the form of the radiating, the heat pipe radiator has the defects that the size is large, the strength of an externally-extending heat pipe is low, the heat pipe radiator is easy to damage, heat radiating fins are easy to adsorb dust and reduce heat conduction performance, a large amount of heat can be generated during operation, the working performance of a frequency converter and surrounding electric elements can be influenced if the heat is not timely discharged, the service life of the frequency converter can be influenced under the condition of long-time use, even danger occurs, a fan is used for radiating on the market afterwards, the radiating effect of the mode is general, the fan needs to be frequently cleaned, otherwise, the radiating performance can be influenced, the explosion-proof performance can be reduced by using the fan for radiating, and the possibility of accidents is increased.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an explosion-proof frequency converter and cooling device thereof, through when needs carry out cooling to explosion-proof frequency converter, open the operation of water pump through control switch, then under the effect of water pump, the coolant liquid circulates the circulation, and then realize the cooling to explosion-proof frequency converter, the cooler bin fixed plate is used for the fixed and support to the cooler bin, thereby improve the security that explosion-proof frequency converter and cooling device used, the coolant liquid is carried out through the cooler bin connecting hole by the cooler bin, then carry to the wash port via the drain pipe, flow into to the cooling chamber via the wash port, then the coolant liquid is at the in-process that the cooling chamber circulates, realize the heat dissipation cooling to explosion-proof frequency converter, then the coolant liquid is through flowing into the inlet tube by the inlet opening, then flow in the characteristics of cooler bin again.

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof frequency converter and a cooling device thereof comprise a main box body, wherein the inner side of the main box body is provided with a connecting screw hole, the upper end of the main box body is provided with a cylindrical rotating shaft, the upper end of the rotating shaft is provided with a device upper cover, the inner side of the device upper cover is provided with an observation window, the inner side of the main box body is provided with a rectangular main body inner layer, the left end of the main box body is provided with two cylindrical wiring hole columns, the left side of the main box body is provided with a fixed side plate, the inner side of the fixed side plate is provided with a fixed screw hole, the front end of the main box body is provided with a cooling box, the front end of the main box body is provided with a water inlet hole, the front end of the water inlet hole is provided with a water inlet pipe, the left end of the cooling box is provided with a cooling box connecting hole, the rear end of the cooling box is provided with a cooling box fixing plate, the inner side of the main box body is provided with a cooling layer, the inner side of the cooling layer is provided with a bottom plate, the inner side of the cooling layer is provided with a cooling partition plate, and the left end of the cooling box is provided with a control switch.

Preferably, the main box body is a rectangular box body with an opening at the upper end and is arranged at the position of the rear end of the cooling box, the width of the main box body is equal to that of the upper cover of the device, the length of the main box body is equal to that of the upper cover of the device, the inner sides of the ends, which are in mutual contact, of the main box body and the upper cover of the device are provided with connecting screw holes, and the number and the positions of the connecting screw holes are in one-to-one correspondence; after the frequency converter is placed on the inner side of the main box body, the upper cover of the device is covered on the upper end of the main box body, and then the main box body is fixedly connected with the upper cover of the device by sequentially penetrating the connecting bolts through the corresponding connecting screw holes.

Preferably, the fixed side plates are rectangular metal side plates, the number of the fixed side plates is two, the fixed side plates are symmetrically welded and installed at the left end and the right end of the main box body, the length of each fixed side plate is the same as that of the main box body, and the inner side of each fixed side plate is provided with three circular fixed screw holes; when the explosion-proof frequency converter and the cooling device thereof are required to be fixed, the fixing side plate is firstly contacted with the fixing surface, and then the fixing bolt sequentially penetrates through the fixing screw holes, so that the explosion-proof frequency converter and the cooling device thereof are fixedly installed.

Preferably, the cooling box is of a cylindrical structure and is arranged at the position of an inner ring of a cooling box fixing plate, the cooling box fixing plate is welded and arranged at the position of the front end of the main box body, a water pump is arranged on the inner side of the cooling box, the left end and the right end of the water pump are both connected with water pipes, and cooling liquid is arranged on the inner side of the cooling box; when needs carry out cooling to explosion-proof frequency converter, open the operation of water pump through control switch, then under the effect of water pump, the coolant liquid circulates, and then realizes the cooling to explosion-proof frequency converter, and the cooler bin fixed plate is used for fixed and the support to the cooler bin to improve the security that explosion-proof frequency converter and cooling device used.

Preferably, the filter layer is of a cylindrical structure and is arranged at the right side of the water pump, and a filter screen of the cylindrical structure is arranged on the inner ring of the filter layer; the filter layer is used for fixing and supporting the filter screen, and through the setting of filter screen, can filter the coolant liquid of circulation inflow cooling tank, and then avoid because of the influence of its impurity that contains to water pump and cooling device to improve the security of explosion-proof frequency converter and cooling device use.

Preferably, the water inlet pipe and the water outlet pipe are both soft water pipes, the water inlet pipe is arranged at a position between the water inlet hole and the cooling box connecting hole, the water outlet pipe is arranged at a position between the water outlet hole and the cooling box connecting hole, and cooling liquid is arranged on the inner sides of the water inlet pipe and the water outlet pipe; through the installation setting of inlet tube and drain pipe, realized the circulation flow of the intercommunication and coolant liquid of cooling layer and cooler bin.

Preferably, the cooling layer is a rectangular structure bottom layer and is arranged at the lower end of the inner layer of the main body, a cooling cavity is arranged on the inner side of the cooling layer, the cooling cavity is arranged in an S-shaped manner, a cooling partition plate with a rectangular structure is arranged at the bending part of each section of the cooling cavity, one end of the cooling cavity is communicated with the water inlet hole, and the other end of the cooling cavity is communicated with the water drain hole; the cooling liquid is carried out via the cooling box connecting hole of cooling box, then carries to the wash port via the drain pipe, flows into to the cooling chamber via the wash port, then the cooling liquid realizes the heat dissipation cooling to explosion-proof frequency converter at the in-process of cooling chamber circulation, then the cooling liquid flows into the inlet tube via the inlet opening, then flows into the cooling box again.

Preferably, the control switch is electrically connected with the water pump.

Compared with the prior art, the beneficial effects of the utility model are that: when the explosion-proof frequency converter needs to be cooled, the operation of a water pump is started through a control switch, then the cooling liquid circulates under the action of the water pump, so that the cooling of the explosion-proof frequency converter is realized, a cooling box fixing plate is used for fixing and supporting a cooling box, so that the use safety of the explosion-proof frequency converter and a cooling device thereof is improved, a filter layer is used for fixing and supporting a filter screen, the cooling liquid which circularly flows into the cooling box can be filtered through the arrangement of the filter screen, the influence of impurities contained in the cooling liquid on the water pump and the cooling device is avoided, so that the use safety of the explosion-proof frequency converter and the cooling device thereof is improved, the mutual communication between the cooling layer and the cooling box and the circular flow of the cooling liquid are realized through the installation arrangement of a water inlet pipe and a water outlet pipe, the cooling liquid is conveyed out through a cooling box connecting hole of the cooling box and, the cooling liquid flows into the cooling cavity through the drain hole, then the cooling liquid realizes the heat dissipation and cooling of the explosion-proof frequency converter in the process of flowing in the cooling cavity, and then the cooling liquid flows into the water inlet pipe through the water inlet hole and then flows into the cooling box.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic top view of the main box of the present invention;

FIG. 2 is a schematic structural view of the upper cover of the device of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a front view of the main box of the present invention;

FIG. 5 is a schematic sectional view of the cooling box of the present invention;

FIG. 6 is a schematic cross-sectional view of a cooling layer according to the present invention;

in the figure: 1. a main box body; 2. a connecting screw hole; 3. a rotating shaft; 4. an upper cover of the device; 5. an observation window; 6. a main body inner layer; 7. a wiring hole post; 8. fixing the side plate; 9. fixing screw holes; 10. a cooling tank; 11. a water inlet hole; 12. a water inlet pipe; 13. a cooling box connection hole; 14. a filter layer; 15. a drain pipe; 16. a drain hole; 17. a cooling box fixing plate; 18. a cooling layer; 19. a base plate; 20. a cooling chamber; 21. cooling the partition plate; 22. a water pump; 23. and controlling the switch.

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 work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present invention provides the following technical solutions: an explosion-proof frequency converter and a cooling device thereof comprise a main box body 1, wherein the inner side of the main box body 1 is provided with a connecting screw hole 2, the upper end of the main box body 1 is provided with a cylindrical rotating shaft 3, the upper end of the rotating shaft 3 is provided with a device upper cover 4, the inner side of the device upper cover 4 is provided with an observation window 5, the inner side of the main box body 1 is provided with a rectangular main body inner layer 6, the left end of the main box body 1 is provided with two cylindrical wiring hole columns 7, the left side of the main box body 1 is provided with a fixed side plate 8, the inner side of the fixed side plate 8 is provided with a fixed screw hole 9, the front end of the main box body 1 is provided with a cooling box 10, the front end of the main box body 1 is provided with a water inlet hole 11, the front end of the water inlet hole 11 is provided with a water inlet pipe 12, the, a drain pipe 15 is arranged at the left end of the cooling box connecting hole 13, a drain hole 16 is arranged at the left end of the drain pipe 15, a cooling box fixing plate 17 is arranged at the rear end of the cooling box 10, a cooling layer 18 is arranged on the inner side of the main box body 1, a bottom plate 19 is arranged on the inner side of the cooling layer 18, a cooling partition plate 21 is arranged on the inner side of the cooling layer 18, and a control switch 23 is arranged at the left end of the cooling box 10.

Specifically, the main box body 1 is a box body with a rectangular structure and an opening at the upper end, and is arranged at the position of the rear end of the cooling box 10, the width of the main box body 1 is equal to the width of the device upper cover 4, the length of the main box body 1 is equal to the length of the device upper cover 4, the inner sides of the ends, which are in mutual contact, of the main box body 1 and the device upper cover 4 are both provided with connecting screw holes 2, and the number and the positions of the connecting screw holes 2 are in one-to-one correspondence; after the frequency converter is placed inside the main box body 1, the device upper cover 4 is covered on the upper end of the main box body 1, and then the main box body 1 is fixedly connected with the device upper cover 4 by sequentially penetrating the connecting bolts through the corresponding connecting screw holes 2.

Specifically, the fixed side plates 8 are rectangular metal side plates, the number of the fixed side plates is two, the fixed side plates are symmetrically welded and installed at the left end and the right end of the main box body 1, the length of each fixed side plate 8 is the same as that of the main box body 1, and three circular fixed screw holes 9 are formed in the inner side of each fixed side plate 8; when the explosion-proof frequency converter and the cooling device thereof are required to be fixed, the fixing side plate 8 is firstly contacted with the fixing surface, and then the fixing bolt sequentially penetrates through the fixing screw holes 9, so that the explosion-proof frequency converter and the cooling device thereof are fixedly installed.

Specifically, the cooling box 10 is of a cylindrical structure and is arranged at the position of an inner ring of a cooling box fixing plate 17, the cooling box fixing plate 17 is welded and arranged at the position of the front end of the main box body 1, a water pump 22 is arranged on the inner side of the cooling box 10, the left end and the right end of the water pump 22 are both connected with water pipes, and cooling liquid is arranged on the inner side of the cooling box 10; when the explosion-proof frequency converter needs to be cooled, the operation of the water pump 22 is started through the control switch 23, then under the action of the water pump 22, the cooling liquid circulates circularly, so that the cooling of the explosion-proof frequency converter is realized, and the cooling box fixing plate 17 is used for fixing and supporting the cooling box 10, so that the use safety of the explosion-proof frequency converter and the cooling device thereof is improved.

Specifically, the filter layer 14 is of a cylindrical structure and is mounted at the right side of the water pump 22, and a filter screen of the cylindrical structure is arranged on the inner ring of the filter layer 14; the filter layer 14 is used for fixing and supporting the filter screen, and through the arrangement of the filter screen, the coolant circularly flowing into the cooling box 10 can be filtered, so that the influence of impurities contained in the coolant on the water pump 22 and the cooling device is avoided, and the use safety of the explosion-proof frequency converter and the cooling device thereof is improved.

Specifically, the water inlet pipe 12 and the water outlet pipe 15 are both soft water pipes, the water inlet pipe 12 is installed between the water inlet hole 11 and the cooling box connecting hole 13, the water outlet pipe 15 is installed between the water outlet hole 16 and the cooling box connecting hole 13, and cooling liquid is arranged on the inner sides of the water inlet pipe 12 and the water outlet pipe 15; the mutual communication between the cooling layer 18 and the cooling box 10 and the circulation flow of the cooling liquid are realized through the installation arrangement of the water inlet pipe 12 and the water outlet pipe 15.

Specifically, the cooling layer 18 is a rectangular structure bottom layer and is mounted at the lower end of the main body inner layer 6, a cooling cavity 20 is arranged on the inner side of the cooling layer 18, the cooling cavity 20 is mounted in an S-shaped manner, a cooling partition plate 21 with a rectangular structure is arranged at the bending position of each section of the cooling cavity 20, one end of the cooling cavity 20 is in through connection with the water inlet hole 11, and the other end of the cooling cavity 20 is in through connection with the water drain hole 16; the cooling liquid is conveyed out through a cooling box connecting hole 13 of the cooling box 10, then conveyed to a drain hole 16 through a drain pipe 15, flows into a cooling cavity 20 through the drain hole 16, then realizes heat dissipation and temperature reduction of the explosion-proof frequency converter in the process of circulation of the cooling cavity 20, then flows into a water inlet pipe 12 through a water inlet hole 11, and then flows into the cooling box 10.

Specifically, the control switch 23 is electrically connected to the water pump 22.

The working principle and the using process of the invention are as follows: when in use, after the frequency converter is placed inside the main box body 1, the upper cover 4 of the device is covered on the upper end of the main box body 1, then the connecting bolts sequentially penetrate through the corresponding connecting screw holes 2 to fixedly connect the main box body 1 and the upper cover 4 of the device, then the fixed side plate 8 is contacted with the fixed surface, then the fixed bolts sequentially penetrate through the fixed screw holes 9 to further fixedly install the explosion-proof frequency converter and the cooling device thereof, when the explosion-proof frequency converter needs to be cooled, the operation of the water pump 22 is started through the control switch 23, then the cooling liquid circulates under the action of the water pump 22, the cooling liquid is conveyed out through the cooling box connecting hole 13 of the cooling box 10 and then conveyed to the drain hole 16 through the drain pipe 15 and flows into the cooling cavity 20 through the drain hole 16, and then the cooling liquid circulates in the cooling cavity 20, the cooling device comprises a cooling box fixing plate 17, a water inlet pipe 12, a water outlet pipe 15, a water inlet pipe 12, a water outlet pipe 12, a water inlet pipe 12, a water outlet pipe 15, a cooling layer 18, a cooling box 10, a cooling layer fixing plate 17, a water pump 22 and a cooling device, and the like.

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 in the foregoing embodiments, 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. Explosion-proof converter and cooling device thereof, its characterized in that: comprises a main box body (1), wherein a connecting screw hole (2) is arranged on the inner side of the main box body (1), a cylindrical rotating shaft (3) is arranged on the upper end of the main box body (1), a device upper cover (4) is arranged on the upper end of the rotating shaft (3), an observation window (5) is arranged on the inner side of the device upper cover (4), a rectangular main body inner layer (6) is arranged on the inner side of the main box body (1), two cylindrical wiring hole columns (7) are arranged at the left end of the main box body (1), a fixed side plate (8) is arranged on the left side of the main box body (1), a fixed screw hole (9) is arranged on the inner side of the fixed side plate (8), a cooling box (10) is arranged at the front end of the main box body (1), a water inlet hole (11) is arranged at the front end of the main box body (1), a water inlet pipe, the left end of cooler bin (10) is provided with cooler bin connecting hole (13), the inboard of cooler bin (10) is provided with filter layer (14), the left end of cooler bin connecting hole (13) is provided with drain pipe (15), the left end of drain pipe (15) is provided with wash port (16), the rear end of cooler bin (10) is provided with cooler bin fixed plate (17), main tank body (1) inboard is provided with cooling layer (18), the inboard of cooling layer (18) is provided with bottom plate (19), the inboard of cooling layer (18) is provided with cooling baffle (21), the left end of cooler bin (10) is provided with control switch (23).

2. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the main tank body (1) is a tank body with an upper end opening and a rectangular structure, and is arranged at the rear end of the cooling tank (10), the width of the main tank body (1) is equal to that of the device upper cover (4), the length of the main tank body (1) is equal to that of the device upper cover (4), the inner sides of one ends, in mutual contact with each other, of the main tank body (1) and the device upper cover (4) are provided with connecting screw holes (2), and the quantity and the positions of the connecting screw holes (2) are in one-to-one correspondence.

3. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the fixed side plates (8) are rectangular metal side plates, the number of the fixed side plates is two, the fixed side plates are symmetrically welded and installed at the left end and the right end of the main box body (1), the length of each fixed side plate (8) is the same as that of the main box body (1), and three circular fixed screw holes (9) are formed in the inner side of each fixed side plate (8).

4. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the cooling box (10) is of a cylindrical structure and is arranged at the inner ring position of a cooling box fixing plate (17), the cooling box fixing plate (17) is welded and arranged at the front end of the main box body (1), a water pump (22) is arranged on the inner side of the cooling box (10), water pipes are connected to the left end and the right end of the water pump (22), and cooling liquid is arranged on the inner side of the cooling box (10).

5. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the filter layer (14) is of a cylindrical structure and is arranged at the right side of the water pump (22), and a filter screen of the cylindrical structure is arranged on the inner ring of the filter layer (14).

6. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the water inlet pipe (12) and the water outlet pipe (15) are both soft water pipes, the water inlet pipe (12) is installed between the water inlet hole (11) and the cooling box connecting hole (13), the water outlet pipe (15) is installed between the water outlet hole (16) and the cooling box connecting hole (13), and cooling liquid is arranged on the inner sides of the water inlet pipe (12) and the water outlet pipe (15).

7. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the cooling layer (18) is a rectangular structure bottom layer and is installed at the lower end of the main body inner layer (6), a cooling cavity (20) is arranged on the inner side of the cooling layer (18), the cooling cavity (20) is installed in an S-shaped mode, a cooling partition plate (21) of a rectangular structure is arranged at the bending position of each section of the cooling cavity (20), one end of the cooling cavity (20) is in through connection with the water inlet hole (11), and the other end of the cooling cavity is in through connection with the water drain hole (16).

8. The explosion-proof frequency converter and the cooling device thereof according to claim 1, wherein: the control switch (23) is electrically connected with the water pump (22).