CN220754635U - Explosion-proof type converter casing - Google Patents
Explosion-proof type converter casing Download PDFInfo
- Publication number
- CN220754635U CN220754635U CN202322438136.8U CN202322438136U CN220754635U CN 220754635 U CN220754635 U CN 220754635U CN 202322438136 U CN202322438136 U CN 202322438136U CN 220754635 U CN220754635 U CN 220754635U
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- frequency converter
- converter shell
- sealing baffle
- explosion
- combustible gas
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- 238000007789 sealing Methods 0.000 claims abstract description 63
- 238000012806 monitoring device Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 15
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses an explosion-proof type frequency converter shell, which belongs to the field of frequency converter shells, and comprises a frequency converter shell, wherein the upper parts of the front end and the rear end of the frequency converter shell are fixedly provided with combustible gas monitors, the front end of the frequency converter shell is fixedly provided with a control panel, the combustible gas monitors are arranged on the upper parts of the front end and the rear end of the frequency converter shell, the combustible gas monitors, a positive pressure control device and an electromagnet are electrically connected, and in normal use, a radiating hole is in an open state, and the positive pressure control device is in a closed state; when the combustible gas monitor monitors the combustible gas, the current direction of the electromagnet is changed, the sealing baffle is controlled to plug the radiating hole, the positive pressure control device is started to control the internal pressure of the frequency converter shell, the explosion-proof performance of the frequency converter shell is improved, workers can be timely informed of the installation of the combustible gas monitor to process the combustible gas, and the safety of the frequency converter shell is improved.
Description
Technical Field
The utility model relates to the field of frequency converter shells, in particular to an explosion-proof frequency converter shell.
Background
The frequency converter is an electric control device for controlling the AC motor by changing the working power frequency of the motor by applying the frequency conversion technology and the microelectronics technology, and mainly comprises a rectifying unit, a filtering unit, an inversion unit, a braking unit, a driving unit, a detecting unit and a microprocessor unit, wherein the frequency converter adjusts the voltage and the frequency of an output power supply by switching on and off an internal IGBT, and provides the required power supply voltage according to the actual requirement of the motor so as to achieve the purposes of energy saving and speed regulation.
Chinese patent grant bulletin number: CN208571897U, which provides an explosion-proof frequency converter, by setting a positive pressure control device, the patent can effectively prevent combustible gas from entering the frequency converter, and improve the explosion-proof capability of the frequency converter; by arranging the heat pipe, the frequency converter can have good heat dissipation capacity even in a sealed environment; the detachable design of the frequency converter shell and the sealing cover can protect the frequency converter and facilitate disassembly and installation. Therefore, the explosion-proof frequency converter has good explosion-proof performance and is convenient for the assembly and maintenance operation of staff.
According to the explosion-proof frequency converter, the positive pressure control device is arranged inside, so that the air inside and outside the frequency converter is converted, the frequency converter is normally used, the outside of the frequency converter cannot be provided with combustible gas, the periphery of the frequency converter generates the combustible gas to cause explosion danger when accidents occur, the positive pressure control device is always started, the use cost of the frequency converter is increased, and the internal heat dissipation speed of the frequency converter is reduced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems existing in the prior art, the utility model aims to provide an explosion-proof type frequency converter shell, which can realize that the upper parts of the front end and the rear end of the frequency converter shell are respectively provided with a combustible gas monitor, and the combustible gas monitors are electrically connected with a positive pressure control device and an electromagnet, and when the frequency converter shell is in normal use, a radiating hole is in an open state, and the positive pressure control device is in a closed state; when the combustible gas monitor monitors the combustible gas, the current direction of the electromagnet is changed, the sealing baffle is controlled to plug the radiating hole, the positive pressure control device is started to control the internal pressure of the frequency converter shell, the explosion-proof performance of the frequency converter shell is improved, workers can be timely informed of the installation of the combustible gas monitor to process the combustible gas, and the safety of the frequency converter shell is improved.
2. Technical proposal
In order to solve the problems, the utility model adopts the following technical scheme.
The utility model provides an explosion-proof type converter casing, includes the converter shell, equal fixed mounting in front and back end upper portion of converter shell has the combustible gas monitor, converter shell front end fixed mounting has control panel, the converter shell rear end is provided with the heat dissipation hole that multiunit transverse array distributes and sets up, and the number of every group heat dissipation hole is a plurality of, the inside fixed mounting of converter shell has positive pressure controlling means, rear end slidable mounting has sealing baffle in the converter shell, rear end upper portion fixed mounting has the fixed block in the converter shell, the fixed block is inside to be fixedly inlayed with the electro-magnet, sealing baffle is inside upper end fixed to be inlayed with the magnet, magnet and electro-magnet electric connection, the through-hole that multiunit transverse array distributes has been seted up to sealing baffle inside, and the quantity of every group through-hole is a plurality of, combustible gas monitor, electro-magnet, positive pressure controlling means all with control panel electric connection. The air outside the frequency converter shell is monitored through the combustible gas monitors at the front end and the rear end of the frequency converter shell.
Further, a plurality of through holes are matched with the shape of the radiating holes, and the through holes and the radiating holes are in the same array mode.
Further, the bottom support is fixedly arranged at the lower part of the inner rear end of the outer shell of the frequency converter and is positioned at the lower end of the sealing baffle, and when the sealing baffle moves downwards in use, the bottom support can support the sealing baffle.
Further, both sides all are provided with the spacing groove in the converter shell, the spacing groove is located the sealing baffle both sides, the equal fixed mounting in middle part of sealing baffle both sides has the fixture block, the fixture block card is located the spacing inslot.
Further, two the fixture block lower extreme all is provided with the inclined plane, two equal fixed mounting of spacing groove lower extreme has the triangular block, triangular block and the shape phase-match on inclined plane, fixture block upper end fixed mounting has the spring, and during the use, through the setting on triangular block and inclined plane, when making sealing baffle and fixture block move down, inclined plane and triangular block dislocation coincide.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
(1) The scheme can realize that the upper parts of the front end and the rear end of the frequency converter shell are provided with the combustible gas monitors, the positive pressure control device and the electromagnet are electrically connected, and when the frequency converter is in normal use, the radiating holes are in an open state, and the positive pressure control device is in a closed state; when the combustible gas monitor monitors the combustible gas, the current direction of the electromagnet is changed, the sealing baffle is controlled to plug the radiating hole, the positive pressure control device is started to control the internal pressure of the frequency converter shell, the explosion-proof performance of the frequency converter shell is improved, workers can be timely informed of the installation of the combustible gas monitor to process the combustible gas, and the safety of the frequency converter shell is improved.
(2) The sealing baffle is arranged at the inner rear end of the frequency converter shell and is positioned at the rear end of the radiating hole, the sealing baffle can be controlled to slide up and down, the through hole and the radiating hole are aligned front and back or arranged in a staggered mode, the through hole and the radiating hole are aligned, smooth heat dissipation of the radiating hole can be guaranteed, the inside of the frequency converter shell is ventilated, the through hole and the radiating hole are staggered, the sealing baffle is used for sealing the inside of the radiating hole, combustible gas outside the frequency converter shell is effectively isolated, and the explosion-proof performance of the frequency converter shell is improved.
(3) When the sealing baffle moves downwards, the collet can support the sealing baffle, and when the bottom of the sealing baffle is abutted with the collet, the sealing baffle can seal the radiating holes, and the sealing baffle can be limited by the aid of the collet.
(4) Through setting up fixture block and spacing groove, can be spacing with sealing baffle, the fixture block slides from top to bottom in the spacing inslot portion, and then restriction sealing baffle's removal orbit.
(5) Through the setting on triangular block and inclined plane, make sealing baffle and fixture block when moving down, inclined plane and triangular block dislocation coincide, and the fixture block moves down and backward extrusion under the guide of triangular block, makes sealing baffle and the interior back wall laminating of converter shell more firm, further improves the leakproofness of louvre, and the spring stretches, consolidates sealing baffle's sealed spacing.
Drawings
FIG. 1 is a rear view of a transducer housing of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the inverter housing according to the present utility model;
fig. 3 is a schematic diagram of an internal structure of the limiting groove in the present utility model.
The reference numerals in the figures illustrate:
1. a frequency converter housing; 11. a bottom support; 12. a fixed block; 13. a limit groove; 131. triangular blocks; 2. a positive pressure control device; 3. a heat radiation hole; 4. a combustible gas monitor; 5. a sealing baffle; 51. a through hole; 52. a clamping block; 521. an inclined plane; 53. a spring; 6. an electromagnet; 7. a magnetic block.
Detailed Description
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; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1:
referring to fig. 1-2, an explosion-proof type frequency converter shell comprises a frequency converter shell 1, wherein the upper parts of the front end and the rear end of the frequency converter shell 1 are fixedly provided with a flammable gas monitor 4, the front end of the frequency converter shell 1 is fixedly provided with a control panel, the rear end of the frequency converter shell 1 is provided with a plurality of groups of heat dissipation holes 3 distributed in a transverse array manner, the number of each group of heat dissipation holes 3 is a plurality of, the inside of the frequency converter shell 1 is fixedly provided with a positive pressure control device 2, the rear end of the inside of the frequency converter shell 1 is slidably provided with a sealing baffle 5, the upper part of the inside of the rear end of the frequency converter shell 1 is fixedly provided with a fixed block 12, an electromagnet 6 is fixedly embedded in the fixed block 12, the upper end of the inside of the sealing baffle 5 is fixedly embedded with a magnetic block 7, the magnetic block 7 is electrically connected with the electromagnet 6, the inside of the sealing baffle 5 is provided with a plurality of groups of through holes 51 distributed in a transverse array manner, and the number of each group of through holes 51 is a plurality of the flammable gas monitor 4, the electromagnet 6 and the positive pressure control device 2 are electrically connected with the control panel. The air outside the frequency converter shell 1 is monitored through the combustible gas monitors 4 at the front end and the rear end of the frequency converter shell 1, when the air state is abnormal, the electromagnet 6 and the magnetic block 7 are magnetically attracted, the top of the sealing baffle 5 is attached to the bottom of the fixed block 12, and the heat dissipation holes 3 correspond to the positions of the through holes 51 in front and back, so that the heat dissipation holes 3 are communicated, the heat dissipation inside the frequency converter shell 1 is facilitated, and meanwhile, the positive pressure control device 2 is in a closed state; when the flammable gas monitor 4 monitors that flammable gas exists outside the transducer housing 1, the flammable gas monitor 4 sends a signal to the control panel, the control panel controls the positive pressure control device 2 to start, and changes the current direction of the electromagnet 6, so that the electromagnet 6 and the magnetic block 7 repel each other magnetically, the electromagnet 6 pushes the sealing baffle 5 to move downwards, the through hole 51 and the radiating hole 3 are misplaced, the radiating hole 3 is plugged through the sealing baffle 5, air inside the transducer housing 1 is converted through the positive pressure control device 2, the positive pressure control device 2 is the prior art known to the person skilled in the art, and the specific structure, the connection relation and the functional principle of the flammable gas monitor are not repeated here.
The through holes 51 are matched with the radiating holes 3 in shape, the through holes 51 are identical to the radiating holes 3 in array mode, and when the frequency converter is used, the sealing baffle 5 is arranged at the rear end in the frequency converter shell 1 and positioned at the rear end of the radiating holes 3, the sealing baffle 5 can be controlled to slide up and down, so that the through holes 51 and the radiating holes 3 are aligned front and back or arranged in a staggered mode, the through holes 51 and the radiating holes 3 are aligned, the heat dissipation smoothness of the radiating holes 3 can be ensured, the inside of the frequency converter shell 1 is ventilated, the through holes 51 and the radiating holes 3 are staggered, the sealing baffle 5 is used for sealing the inside of the radiating holes 3, the combustible gas outside the frequency converter shell 1 is effectively isolated, and the explosion-proof performance of the frequency converter shell 1 is improved.
The collet 11 is fixedly installed at the lower part of the rear end in the frequency converter shell 1, the collet 11 is located at the lower end of the sealing baffle 5, when the sealing baffle 5 moves downwards in use, the collet 11 can support the sealing baffle 5, and when the bottom of the sealing baffle 5 is abutted with the collet 11, the sealing baffle 5 can seal the radiating holes 3, and the sealing baffle 5 can be assisted to limit through the arrangement of the collet 11.
Both sides all are provided with spacing groove 13 in the converter shell 1, and spacing groove 13 is located sealing baffle 5 both sides, and sealing baffle 5 both sides middle part is all fixed mounting has fixture block 52, and fixture block 52 card is located spacing inslot 13, and during the use, through setting up fixture block 52 and spacing groove 13, can be spacing sealing baffle 5, fixture block 52 slides from top to bottom in spacing groove 13 inside, and then restriction sealing baffle 5's removal orbit.
Referring to fig. 2-3, inclined planes 521 are respectively disposed at the lower ends of the two clamping blocks 52, triangular blocks 131 are fixedly mounted at the lower ends of the two limiting grooves 13, the triangular blocks 131 are matched with the inclined planes 521 in shape, springs 53 are fixedly mounted at the upper ends of the clamping blocks 52, when in use, through the arrangement of the triangular blocks 131 and the inclined planes 521, the inclined planes 521 and the triangular blocks 131 are staggered and overlapped when the sealing baffle 5 and the clamping blocks 52 move downwards, the clamping blocks 52 move downwards and are extruded backwards under the guidance of the triangular blocks 131, the sealing baffle 5 is firmly attached to the inner rear wall of the frequency converter shell 1, the sealing performance of the heat dissipation holes 3 is further improved, and the springs 53 are stretched to strengthen the sealing limit of the sealing baffle 5.
The working principle of the utility model is as follows: firstly, the frequency converter shell 1 is installed at a position required to be used, then the frequency converter is connected with a power supply, air outside the frequency converter shell 1 is monitored through the combustible gas monitors 4 at the front end and the rear end of the frequency converter shell 1, when the air state is not abnormal, the electromagnet 6 and the magnetic block 7 are magnetically attracted, the top of the sealing baffle 5 is attached to the bottom of the fixed block 12, the heat dissipation holes 3 correspond to the positions of the through holes 51 from front to back, the heat dissipation holes 3 are internally communicated, the heat dissipation inside the frequency converter shell 1 is facilitated, and meanwhile, the positive pressure control device 2 is in a closed state. When the flammable gas monitor 4 monitors that flammable gas exists outside the frequency converter shell 1, the flammable gas monitor 4 sends a signal to the control panel, the control panel controls the positive pressure control device 2 to start, and changes the current direction of the electromagnet 6, so that the electromagnet 6 and the magnetic block 7 repel each other magnetically, the electromagnet 6 pushes the sealing baffle 5 to move downwards, the through hole 51 and the radiating hole 3 are staggered, the radiating hole 3 is blocked by the sealing baffle 5, and the air inside the frequency converter shell 1 is converted by the positive pressure control device 2.
The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.
Claims (6)
1. An explosion-proof type converter casing, includes converter shell (1), its characterized in that: the utility model discloses a gas monitoring device, including converter shell (1), control panel, sealing baffle (4), magnet (6) are inlayed in rear end upper portion fixed mounting in converter shell (1), converter shell (1) front end is provided with multiunit transverse array distribution and sets up louvre (3), and the number of every group louvre (3) is a plurality of, the inside fixed mounting of converter shell (1) has positive pressure controlling means (2), rear end slidable mounting has sealing baffle (5) in converter shell (1), rear end upper portion fixed mounting has fixed block (12) in converter shell (1), fixed block (12) inside fixed electromagnet (6) that inlays, sealing baffle (5) inside upper end fixed magnet (7) that inlays, magnet (7) and electromagnet (6) electric connection, sealing baffle (5) inside set up multiunit transverse array distribution's through-hole (51), and the quantity of every group through-hole (51) is a plurality of, gas monitoring device (4), positive pressure controlling means (2) and control panel electric connection.
2. An explosion-proof frequency converter housing according to claim 1, wherein: the through holes (51) are matched with the radiating holes (3) in shape, and the through holes (51) and the radiating holes (3) are arrayed in the same mode.
3. An explosion-proof frequency converter housing according to claim 1, wherein: the lower part of the inner rear end of the frequency converter shell (1) is fixedly provided with a bottom bracket (11), and the bottom bracket (11) is positioned at the lower end of the sealing baffle plate (5).
4. An explosion-proof frequency converter housing according to claim 1, wherein: both sides all are provided with spacing groove (13) in converter shell (1), spacing groove (13) are located sealing baffle (5) both sides, sealing baffle (5) both sides middle part is all fixed mounting has fixture block (52), fixture block (52) card is located in spacing groove (13).
5. An explosion-proof frequency converter housing according to claim 4, wherein: the lower ends of the two clamping blocks (52) are respectively provided with an inclined surface (521), triangular blocks (131) are fixedly arranged at the lower ends of the two limiting grooves (13), and the triangular blocks (131) are matched with the inclined surfaces (521) in shape.
6. An explosion-proof frequency converter housing according to claim 5, wherein: the upper ends of the two clamping blocks (52) are fixedly provided with springs (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322438136.8U CN220754635U (en) | 2023-09-08 | 2023-09-08 | Explosion-proof type converter casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322438136.8U CN220754635U (en) | 2023-09-08 | 2023-09-08 | Explosion-proof type converter casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754635U true CN220754635U (en) | 2024-04-09 |
Family
ID=90557221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322438136.8U Active CN220754635U (en) | 2023-09-08 | 2023-09-08 | Explosion-proof type converter casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754635U (en) |
-
2023
- 2023-09-08 CN CN202322438136.8U patent/CN220754635U/en active Active
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