CN214206266U - Heat dissipation structure of mining frequency converter - Google Patents
Heat dissipation structure of mining frequency converter Download PDFInfo
- Publication number
- CN214206266U CN214206266U CN202120350120.XU CN202120350120U CN214206266U CN 214206266 U CN214206266 U CN 214206266U CN 202120350120 U CN202120350120 U CN 202120350120U CN 214206266 U CN214206266 U CN 214206266U
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- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 160
- 238000005065 mining Methods 0.000 title claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 62
- 239000000428 dust Substances 0.000 claims abstract description 41
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003780 insertion Methods 0.000 description 14
- 230000037431 insertion Effects 0.000 description 14
- 239000000110 cooling liquid Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a mining converter heat radiation structure, including first heat dissipation casing, heat dissipation fan, dust cover, joint structure and U type cooling tube, install the heat dissipation fan on the inner wall of first heat dissipation casing one side, and all be provided with equidistant air intake on the first heat dissipation casing lateral wall of heat dissipation fan both sides, the air intake is linked together with first heat dissipation casing, be provided with the dust cover on the outer wall of the first heat dissipation casing of air intake position department, and the both sides of dust cover all are provided with the joint structure, one side of first heat dissipation casing is provided with the second heat dissipation casing, and the inside of the second heat dissipation casing is provided with the cooling frame, the outer wall of cooling frame and the inner wall fixed connection of first heat dissipation casing, it has the fretwork board to inlay in the second heat dissipation casing lateral wall of cooling frame one side. The utility model discloses not only the radiating efficiency is higher, has improved heat radiation structure's radiating effect, is convenient for dismantle the dust cover and wash, and overall structure is mosaic structure, is convenient for unpack apart heat radiation structure and overhauls.
Description
Technical Field
The utility model relates to a mining converter technical field specifically is a mining converter heat radiation structure.
Background
The frequency converter is available in China for nearly 20 years, due to the excellent performance and considerable power-saving effect, the frequency converter is widely applied in various industries, the utilization rate reaches about 30% till now, the frequency converter is rapidly developed in recent decades, the annual increment rate is more than 20%, the application of the mining frequency converter is late compared with other frequency converters, but the mining frequency converter is rapidly developed in five years, the frequency converter has the trend of the first of various industries, the technical development of the explosion-proof industry is different from the plan of 'eleven-five', the application of the mining explosion-proof frequency converter is wide day by day, a power module of the mining frequency converter can generate larger heat in the normal working process, and the mining frequency converter needs to be effectively radiated by means of a radiating structure in order to ensure the normal work of the mining frequency converter.
The heat dissipation structure on the market is various and can basically meet the use requirements of people, but certain defects still exist, and the specific problems are as follows.
(1) When the existing heat dissipation structure is used, a common heat dissipation fan is generally adopted for heat dissipation, and the heat dissipation effect is relatively common, so that improvement is needed;
(2) when the existing heat dissipation structure is used, a dust cover is generally arranged to block external dust, but the dust cover is generally a fixed structure and is difficult to disassemble and clean, so that certain defects exist;
(3) the existing heat dissipation structure is generally an integrated structure, and is difficult to disassemble and maintain when an internal component fails, so that troubles are caused to people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mining converter heat radiation structure to it is comparatively general to provide heat radiation structure radiating effect in solving above-mentioned background art, and the dust cover is difficult to dismantle the washing and the inconvenient problem of taking apart the maintenance apart.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mining converter heat radiation structure, includes first heat dissipation casing, heat dissipation fan, dust cover, joint structure and U type cooling tube, install the heat dissipation fan on the inner wall of first heat dissipation casing one side, and all be provided with equidistant air intake on the first heat dissipation casing lateral wall of heat dissipation fan both sides, the air intake is linked together with first heat dissipation casing, be provided with the dust cover on the outer wall of the first heat dissipation casing of air intake position department, and the both sides of dust cover all are provided with the joint structure, one side of first heat dissipation casing is provided with the second heat dissipation casing, and the inside of the second heat dissipation casing is provided with the cooling frame, the outer wall of cooling frame and the inner wall fixed connection of first heat dissipation casing, it has the fretwork board to inlay in the second heat dissipation casing lateral wall of cooling frame one side.
Preferably, all be provided with first concatenation piece on two outer walls of first heat dissipation casing, the one end of first concatenation piece and the outer wall welding of first heat dissipation casing, the inside of first concatenation piece is provided with first screw hole, and all be provided with the second concatenation piece on two outer walls of the second heat dissipation casing of first concatenation piece one side, the second concatenation piece is mutually supported with first concatenation piece, the one end of second concatenation piece and the outer wall welding of second heat dissipation casing, and the inside of second concatenation piece is provided with the second screw hole, the second screw hole is linked together with first screw hole, a splicing work for first heat dissipation casing and second heat dissipation casing.
Preferably, all be provided with equidistant location inserted bar on the lateral wall of first heat dissipation casing, the one end of location inserted bar and the lateral wall fixed connection of first heat dissipation casing, and be provided with the location jack on the second heat dissipation casing lateral wall of location inserted bar position department, the one end of location inserted bar extends to the inside of location jack, location inserted bar and location jack are mutually supported, are convenient for align first heat dissipation casing and second heat dissipation casing.
Preferably, the outer walls of the two sides of the second heat dissipation shell are provided with installation pieces, one ends of the installation pieces are fixedly connected with the outer wall of the second heat dissipation shell, and the center position inside the installation pieces is provided with installation holes for installation work of the second heat dissipation shell.
Preferably, the inside of cooling frame is provided with U type cooling tube, and the outside of U type cooling tube all overlaps and is equipped with the location pipe box, and the inner wall threaded connection of location pipe box and cooling frame to the one end of U type cooling tube extends to one side of cooling frame and is provided with the water inlet, and the other end of U type cooling tube extends to the opposite side of cooling frame and is provided with the delivery port, has improved radiating effect.
Preferably, the inside of joint structure has set gradually mounting groove, installation piece, lug, joint groove and joint piece, all is provided with the mounting groove on the first heat dissipation casing outer wall of dust cover both sides, and the inside of mounting groove is provided with the installation piece, and the installation piece is mutually supported with the mounting groove, installation piece and dust cover swing joint to be provided with the lug on the outer wall of installation piece, the inner wall of lug and the outer wall fixed connection of installation piece for the connection work of dust cover and first heat dissipation casing.
Preferably, the mounting tank bottom of mounting block below is provided with the joint groove, and the inside in joint groove is provided with the joint piece, joint piece and the mutual block in joint groove, the top of joint piece extend to the inside of mounting groove and with the bottom fixed connection of mounting block, be convenient for fix the inside at the mounting groove with the mounting block.
Preferably, the inside of first screw hole and second screw hole is provided with the splicing bolt, splicing bolt all with first screw hole and second screw hole threaded connection, one end of splicing bolt extends to one side of second splicing piece for the connection work of first screw hole and second screw hole.
Compared with the prior art, the beneficial effects of the utility model are that: the heat dissipation structure of the mining frequency converter has higher heat dissipation efficiency, improves the heat dissipation effect of the heat dissipation structure, is convenient for disassembling and cleaning the dust cover, and is convenient for disassembling and overhauling the heat dissipation structure due to the splicing structure of the whole structure;
(1) the cooling frame is arranged in the second heat dissipation shell, the U-shaped cooling pipe is arranged in the cooling frame through the positioning pipe sleeve, external cooling liquid is guided into the U-shaped cooling pipe on the inner side of the cooling frame through the water inlet, the cooling liquid circulates in the U-shaped cooling pipe and is discharged through the water outlet, when wind blows through the surface of the U-shaped cooling pipe, the cooling liquid converts the wind into cold wind, the cooled wind is blown to the interior of the mining frequency converter, and compared with a common fan heat dissipation mode, the mode has higher heat dissipation efficiency, so that the heat dissipation effect of a heat dissipation structure is improved;
(2) by arranging the mounting groove, the mounting block, the convex block, the clamping groove and the clamping block, when the surface of the dust cover is full of dust, the mounting block and the dust cover are movably connected, the mounting block can be pushed upwards through the convex block to move in the mounting groove, the clamping block is driven to move by the movement of the mounting block due to the fact that the clamping block and the mounting block are of a fixed connection structure, the clamping block is moved out of the clamping groove, at the moment, the mounting block is in a movable state in the mounting groove, the mounting block is taken out of the mounting groove, the dust cover can be detached, and therefore the dust cover can be detached and cleaned conveniently;
(3) through being provided with first heat dissipation casing, second heat dissipation casing, first concatenation piece, first screw hole, second concatenation piece, the second screw hole, the location jack, location inserted bar and splice bolt, when this heat radiation structure internal assembly broke down, because heat radiation structure comprises first heat dissipation casing and the concatenation of second heat dissipation casing, can use the instrument to back out splice bolt from the inside second screw hole of second concatenation piece and the inside first screw hole of first concatenation piece, make first concatenation piece and second concatenation piece separation, because location inserted bar is fixed connection structure with first heat dissipation casing, pulling first heat dissipation casing to one side again makes the location inserted bar on its outer wall shift out from the inside location jack on the second heat dissipation casing outer wall, separate first heat dissipation casing and second heat dissipation casing, thereby be convenient for unpack apart the heat radiation structure and overhaul.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is a schematic side view of the cooling frame of the present invention;
fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;
fig. 4 is an enlarged schematic view of the clamping structure of the present invention.
In the figure: 1. a first heat dissipation housing; 2. a second heat dissipation housing; 3. mounting a sheet; 4. mounting holes; 5. a cooling frame; 6. a hollowed-out plate; 7. a heat dissipation fan; 8. an air inlet; 9. a dust cover; 10. a clamping structure; 1001. mounting grooves; 1002. mounting blocks; 1003. a bump; 1004. a clamping groove; 1005. a clamping block; 11. a water inlet; 12. a U-shaped cooling tube; 13. a positioning pipe sleeve; 14. a water outlet; 15. a first splice tab; 16. a first threaded hole; 17. a second splice tab; 18. a second threaded hole; 19. positioning the jack; 20. positioning the inserted rod; 21. and (4) splicing the bolts.
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.
Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a mining converter heat radiation structure, includes first heat dissipation casing 1, heat dissipation fan 7, dust cover 9, joint structure 10 and U type cooling tube 12, installs heat dissipation fan 7 on the inner wall of first heat dissipation casing 1 one side, and all is provided with equidistant air intake 8 on the first heat dissipation casing 1 lateral wall of heat dissipation fan 7 both sides, and air intake 8 is linked together with first heat dissipation casing 1.
All be provided with first concatenation piece 15 on two outer walls of first heat dissipation casing 1, the one end of first concatenation piece 15 and the outer wall welding of first heat dissipation casing 1, the inside of first concatenation piece 15 is provided with first screw hole 16, and all be provided with second concatenation piece 17 on two outer walls of second heat dissipation casing 2 of first concatenation piece 15 one side, second concatenation piece 17 and first concatenation piece 15 mutually support, the one end of second concatenation piece 17 and the outer wall welding of second heat dissipation casing 2, and the inside of second concatenation piece 17 is provided with second screw hole 18, second screw hole 18 is linked together with first screw hole 16, the inside of first screw hole 16 and second screw hole 18 is provided with splicing bolt 21, splicing bolt 21 all with first screw hole 16 and second screw hole 18 threaded connection, splicing bolt 21's one end extends to one side of second concatenation piece 17.
In use, the splice bolt 21 is unscrewed from the second threaded hole 18 inside the second splice piece 17 and the first threaded hole 16 inside the first splice piece 15 using a tool so that the first splice piece 15 is separated from the second splice piece 17.
The outer side wall of the first heat dissipation shell 1 is provided with positioning insertion rods 20 at equal intervals, one end of each positioning insertion rod 20 is fixedly connected with the outer side wall of the first heat dissipation shell 1, a positioning insertion hole 19 is formed in the outer side wall of the second heat dissipation shell 2 at the position of the positioning insertion rod 20, one end of each positioning insertion rod 20 extends to the inside of the corresponding positioning insertion hole 19, and the positioning insertion rods 20 are matched with the positioning insertion holes 19.
When the heat dissipation device is used, the positioning insertion rod 20 and the first heat dissipation shell 1 are in a fixed connection structure, and then the first heat dissipation shell 1 is pulled towards one side to enable the positioning insertion rod 20 on the outer wall of the first heat dissipation shell 1 to move out of the positioning insertion hole 19 on the outer wall of the second heat dissipation shell 2, so that the first heat dissipation shell 1 is separated from the second heat dissipation shell 2.
All be provided with installation piece 3 on the outer wall of second heat dissipation casing 2 both sides, the one end of installation piece 3 and the outer wall fixed connection of second heat dissipation casing 2, and the inside central point of installation piece 3 puts the department and is provided with mounting hole 4.
When the heat dissipation structure is used, the heat dissipation structure is installed on the outer side of the mining frequency converter through the installation sheet 3 and the installation hole 4.
The outer wall of the first heat dissipation shell 1 at the position of the air inlet 8 is provided with a dust cover 9, and two sides of the dust cover 9 are provided with clamping structures 10.
Mounting groove 1001 has set gradually in the inside of joint structure 10, installation piece 1002, lug 1003, joint groove 1004 and joint piece 1005, all be provided with mounting groove 1001 on the first heat dissipation casing 1 outer wall of dust cover 9 both sides, and the inside of mounting groove 1001 is provided with installation piece 1002, installation piece 1002 and mounting groove 1001 mutually support, installation piece 1002 and dust cover 9 swing joint, and be provided with lug 1003 on the outer wall of installation piece 1002, the inner wall of lug 1003 and the outer wall fixed connection of installation piece 1002, the mounting groove bottom of installation piece 1002 below is provided with joint groove 1004, and the inside of joint groove 1004 is provided with joint piece 1005, joint piece 1005 and the mutual block in joint groove 1004, the top of joint piece 1005 extends to the inside of mounting groove 1001 and with the bottom fixed connection of installation piece 1002.
During the use, because installation piece 1002 is the swing joint mode with dust cover 9, accessible lug 1003 upwards promotes installation piece 1002 and makes its inside removal at mounting groove 1001, because joint piece 1005 is fixed connection structure with installation piece 1002, installation piece 1002 removes and drives joint piece 1005 and remove, make joint piece 1005 shift out from the inside of joint groove 1004, at this moment, installation piece 1002 is active state in mounting groove 1001, take out installation piece 1002 from the inside of mounting groove 1001, can pull down dust cover 9, thereby be convenient for dismantle the washing with dust cover 9.
One side of the first heat dissipation shell 1 is provided with a second heat dissipation shell 2, a cooling frame 5 is arranged inside the second heat dissipation shell 2, the outer wall of the cooling frame 5 is fixedly connected with the inner wall of the first heat dissipation shell 1, and a hollow plate 6 is embedded in the side wall of the second heat dissipation shell 2 on one side of the cooling frame 5.
The inside of cooling frame 5 is provided with U type cooling tube 12, and the outside of U type cooling tube 12 all overlaps and is equipped with locating pipe box 13, and locating pipe box 13 and the inner wall threaded connection of cooling frame 5 to the one end of U type cooling tube 12 extends to one side of cooling frame 5 and is provided with water inlet 11, and the other end of U type cooling tube 12 extends to the opposite side of cooling frame 5 and is provided with delivery port 14.
During the use, in leading-in U type cooling tube 12 to the cooling frame 5 inboard with outside coolant liquid through water inlet 11, the coolant liquid circulates in U type cooling tube 12's inside, and discharge through delivery port 14, when wind blows from the surface of U type cooling tube 12, the coolant liquid changes wind into cold wind, make the wind after the cooling blow the inside of sending to mining converter, compare with ordinary fan heat dissipation mode, this mode radiating efficiency is higher, thereby heat radiation structure's radiating effect has been improved.
The working principle is as follows: when the heat dissipation structure is used, firstly, the heat dissipation structure is installed on the outer side of the mining frequency converter through the installation sheet 3 and the installation hole 4, in the working process of the heat dissipation structure, the heat dissipation fan 7 is started to operate, the heat dissipation fan 7 introduces external air into the first heat dissipation shell 1 and the second heat dissipation shell 2 through the air inlet 8, the dust cover 9 filters dust in the air, secondly, as the cooling frame 5 is installed inside the second heat dissipation shell 2, the U-shaped cooling pipe 12 is installed inside the cooling frame 5 through the positioning pipe sleeve 13, external cooling liquid is introduced into the U-shaped cooling pipe 12 on the inner side of the cooling frame 5 through the water inlet 11, the cooling liquid circulates inside the U-shaped cooling pipe 12 and is discharged through the water outlet 14, when wind blows from the surface of the U-shaped cooling pipe 12, the cooling liquid converts the wind into cold wind, so that the cooled wind is blown to the inside of the mining frequency converter, compared with the common fan heat dissipation mode, the mode has higher heat dissipation efficiency, thereby improving the heat dissipation effect of the heat dissipation structure, then, when the surface of the dust cover 9 is full of dust, because the installation block 1002 and the dust cover 9 are in a movable connection mode, the installation block 1002 can be pushed upwards through the convex block 1003 to move in the installation groove 1001, because the clamping block 1005 and the installation block 1002 are in a fixed connection structure, the installation block 1002 moves to drive the clamping block 1005 to move, so that the clamping block 1005 is moved out from the inside of the clamping groove 1004, at the moment, the installation block 1002 is in a movable state in the installation groove 1001, the installation block 1002 is taken out from the inside of the installation groove 1001, the dust cover 9 can be detached, thereby facilitating the dust cover 9 to be detached and cleaned, and finally, when the internal components of the heat dissipation structure are in failure, because the heat dissipation structure is formed by splicing the first heat dissipation shell 1 and the second heat dissipation shell 2, the splicing bolt 21 can be screwed out from the second threaded hole 18 in the second splicing piece 17 and the first threaded hole 16 in the first splicing piece 15 by using a tool, so that the first splicing piece 15 is separated from the second splicing piece 17, and the positioning insertion rod 20 and the first heat dissipation shell 1 are in a fixed connection structure, and then the first heat dissipation shell 1 is pulled to one side to enable the positioning insertion rod 20 on the outer wall of the first heat dissipation shell 1 to be moved out from the inside of the positioning insertion hole 19 on the outer wall of the second heat dissipation shell 2, so that the first heat dissipation shell 1 is separated from the second heat dissipation shell 2, the heat dissipation structure is convenient to disassemble and overhaul, and the work of the heat dissipation structure of the mining frequency converter is completed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a mining converter heat radiation structure, includes first heat dissipation casing (1), heat dissipation fan (7), dust cover (9), joint structure (10) and U type cooling tube (12), its characterized in that: install heat dissipation fan (7) on the inner wall of first heat dissipation casing (1) one side, and all be provided with equidistant air intake (8) on the first heat dissipation casing (1) lateral wall of heat dissipation fan (7) both sides, air intake (8) are linked together with first heat dissipation casing (1), be provided with dust cover (9) on the outer wall of the first heat dissipation casing (1) of air intake (8) position department, and the both sides of dust cover (9) all are provided with joint structure (10), one side of first heat dissipation casing (1) is provided with second heat dissipation casing (2), and the inside of second heat dissipation casing (2) is provided with cooling frame (5), the outer wall of cooling frame (5) and the inner wall fixed connection of first heat dissipation casing (1), it has fretwork board (6) to inlay in the second heat dissipation casing (2) lateral wall of cooling frame (5) one side.
2. The mining frequency converter heat dissipation structure of claim 1, characterized in that: all be provided with first concatenation piece (15) on two outer walls of first heat dissipation casing (1), the one end of first concatenation piece (15) and the outer wall welding of first heat dissipation casing (1), the inside of first concatenation piece (15) is provided with first screw hole (16), and all be provided with second concatenation piece (17) on two outer walls of second heat dissipation casing (2) of first concatenation piece (15) one side, second concatenation piece (17) and first concatenation piece (15) mutually support, the one end of second concatenation piece (17) and the outer wall welding of second heat dissipation casing (2), and the inside of second concatenation piece (17) is provided with second screw hole (18), second screw hole (18) are linked together with first screw hole (16).
3. The mining frequency converter heat dissipation structure of claim 1, characterized in that: all be provided with equidistant location inserted bar (20) on the lateral wall of first heat dissipation casing (1), the lateral wall fixed connection of the one end of location inserted bar (20) and first heat dissipation casing (1), and be provided with location jack (19) on the second heat dissipation casing (2) lateral wall of location inserted bar (20) position department, the one end of location inserted bar (20) extends to the inside of location jack (19), location inserted bar (20) and location jack (19) mutually support.
4. The mining frequency converter heat dissipation structure of claim 1, characterized in that: all be provided with installation piece (3) on the outer wall of second heat dissipation casing (2) both sides, the one end of installation piece (3) and the outer wall fixed connection of second heat dissipation casing (2), and the inside central point of installation piece (3) puts and is provided with mounting hole (4).
5. The mining frequency converter heat dissipation structure of claim 1, characterized in that: the inside of cooling frame (5) is provided with U type cooling tube (12), and the outside of U type cooling tube (12) all overlaps and is equipped with location pipe box (13), and the inner wall threaded connection of location pipe box (13) and cooling frame (5) to the one end of U type cooling tube (12) extends to one side of cooling frame (5) and is provided with water inlet (11), and the other end of U type cooling tube (12) extends to the opposite side of cooling frame (5) and is provided with delivery port (14).
6. The mining frequency converter heat dissipation structure of claim 1, characterized in that: the inside of joint structure (10) has set gradually mounting groove (1001), installation piece (1002), lug (1003), joint groove (1004) and joint piece (1005), all be provided with mounting groove (1001) on the first heat dissipation casing (1) outer wall of dust cover (9) both sides, and the inside of mounting groove (1001) is provided with installation piece (1002), installation piece (1002) and mounting groove (1001) mutually support, installation piece (1002) and dust cover (9) swing joint to be provided with lug (1003) on the outer wall of installation piece (1002), the inner wall of lug (1003) and the outer wall fixed connection of installation piece (1002).
7. The mining frequency converter heat dissipation structure of claim 6, characterized in that: mounting groove (1001) bottom of installation piece (1002) below is provided with joint groove (1004), and the inside of joint groove (1004) is provided with joint piece (1005), joint piece (1005) and the mutual block of joint groove (1004), the top of joint piece (1005) extend to the inside of mounting groove (1001) and with the bottom fixed connection of installation piece (1002).
8. The mining frequency converter heat dissipation structure of claim 2, characterized in that: the inside of first screw hole (16) and second screw hole (18) is provided with splice bolt (21), splice bolt (21) all with first screw hole (16) and second screw hole (18) threaded connection, one end of splice bolt (21) extends to one side of second splice piece (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120350120.XU CN214206266U (en) | 2021-02-08 | 2021-02-08 | Heat dissipation structure of mining frequency converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120350120.XU CN214206266U (en) | 2021-02-08 | 2021-02-08 | Heat dissipation structure of mining frequency converter |
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| CN214206266U true CN214206266U (en) | 2021-09-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638096A (en) * | 2022-10-13 | 2023-01-24 | 东台宏仁气体有限公司 | Oil smoke fan for cooling compressor |
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2021
- 2021-02-08 CN CN202120350120.XU patent/CN214206266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638096A (en) * | 2022-10-13 | 2023-01-24 | 东台宏仁气体有限公司 | Oil smoke fan for cooling compressor |
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