CN219372805U - Explosion-proof shell of frequency converter - Google Patents
Explosion-proof shell of frequency converter Download PDFInfo
- Publication number
- CN219372805U CN219372805U CN202320276503.6U CN202320276503U CN219372805U CN 219372805 U CN219372805 U CN 219372805U CN 202320276503 U CN202320276503 U CN 202320276503U CN 219372805 U CN219372805 U CN 219372805U
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- fire extinguishing
- shell
- frequency converter
- explosion
- extinguishing box
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Abstract
The utility model discloses an explosion-proof shell of a frequency converter, which comprises a shell and a back plate, wherein one side of the shell is of an opening structure, the shell and the back plate are detachably installed through screws, a fire extinguishing box is fixedly installed on the top wall of the shell, fire extinguishing materials are filled in the fire extinguishing box, a plurality of discharge grooves are uniformly formed in the bottom of the fire extinguishing box in a penetrating mode, a baffle plate for blocking the discharge grooves is slidably installed at the bottom of the fire extinguishing box, and a plurality of conducting grooves matched with the discharge grooves are uniformly formed in the outer surface of the baffle plate in a penetrating mode. When the electric elements of the frequency converter arranged in the shell break down and fire occurs, the trigger mechanism pushes the baffle plate, so that the conducting groove formed in the baffle plate is aligned with the discharge groove formed in the bottom of the fire extinguishing box, and the fire extinguishing material filled in the fire extinguishing box can fall down to extinguish the fire of the electric elements in the shell, control the fire and prevent the electric elements in the shell from being seriously damaged.
Description
Technical Field
The utility model relates to the technical field of frequency converter shells, in particular to an explosion-proof shell of a frequency converter.
Background
The frequency converter is a power control device which controls the alternating current motor by changing the frequency of a working power supply of the motor by applying a frequency conversion technology and a microelectronic technology. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detecting unit micro-processing unit and the like. The frequency converter is used for adjusting the voltage and frequency of the output power supply by switching on and off the internal IGBT, and providing 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. Along with the continuous improvement of the industrial automation degree, the frequency converter is also widely applied.
In the patent with the publication number of CN216959651U, a radiating explosion-proof type frequency converter shell is provided, and the technical scheme adopted is that the radiating explosion-proof type frequency converter shell comprises a front shell, a rear plate, a radiating device, a rear mounting plate and connecting screws; screw holes are respectively formed in four corners of the front side surface of the rear plate, a rectangular limiting ring plate is fixedly arranged on the front side surface of the rear plate, and a frequency converter main body mounting screw hole is formed in the front side surface of the rear plate and is positioned in the limiting ring plate; the front shell is fixedly arranged at the front part of the rear plate through a connecting screw; the front side of back mounting panel is connected with the back plate through heat abstractor, set up the installation hanging hole on the trailing flank of back mounting panel, through back plate fixed mounting converter main part, cover the converter main part through the preceding shell, be used for protecting the converter main part, dispel the heat to the inside converter main part of back plate through heat abstractor, fix it in the electronic box or other external environment through the installation hanging hole on the back mounting panel trailing flank, connect the back plate preceding shell through the screw hole, restrict the mounted position of converter main part through the spacing ring board, increase the structural strength that preceding shell and back plate are connected simultaneously, install screw and external screw through the converter main part and come with converter main part fixed mounting on the back plate.
In the above patent, the heat generated by the inverter main body mounted on the rear plate can be guided by the heat radiation plate, and the heat radiation plate is blown by the fan to radiate the heat, thereby radiating the heat of the inverter main body. However, after the electrical components of the frequency converter fail and fire, the interior of the housing will reach a high temperature, which may cause more serious damage to the electrical components in the housing if the fire extinguishing process cannot be performed in time.
Disclosure of Invention
The utility model aims to solve the problem that in the prior art, after an electrical element of a frequency converter breaks down and fires, the interior of a shell reaches a very high temperature, and if fire extinguishing treatment cannot be timely carried out, the electrical element in the shell is seriously damaged.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an explosion-proof casing of converter, includes shell and backplate, one side of shell is open structure, and shell and backplate pass through screw demountable installation, the roof fixed mounting of shell has the fire extinguishing box, the inside of fire extinguishing box is filled with fire extinguishing material, the bottom of fire extinguishing box evenly runs through and has seted up many discharge grooves, the bottom slidable mounting of fire extinguishing box has the baffle that is used for shutoff discharge groove, the surface of baffle evenly runs through and has seted up many with discharge groove assorted conduction groove, the lower fixed surface that the fire extinguishing box is close to shell opening one end installs the mounting panel, be equipped with trigger mechanism between baffle and the mounting panel.
As a further scheme of the utility model, the triggering mechanism comprises a top plate fixedly arranged on the outer surface of one side of the baffle close to the mounting plate, a glass tube is arranged on the outer surface of one side of the top plate close to the mounting plate, and the glass tube is filled with thermal expansion liquid.
As a further scheme of the utility model, the outer surface of one side of the mounting plate, which is close to the baffle, is fixedly provided with two guide rods, the outer surface of one side of the baffle, which is close to the guide rods, is respectively fixedly provided with two L-shaped plates, the guide rods penetrate through the outer surfaces of the L-shaped plates and are slidably arranged with the outer surfaces of the L-shaped plates, and the outer surfaces of the guide rods are provided with abutting assemblies.
As a further scheme of the utility model, the abutting assembly comprises a limiting ring fixedly arranged at the end part of the guide rod far away from the mounting plate, the outer surface of the guide rod is sleeved with a compression spring, and the compression spring is arranged between the limiting ring and the outer surface of the L-shaped plate.
As a further scheme of the utility model, the outer surface of one side of the mounting plate, which is close to the guide rod, is fixedly provided with a rubber buffer gasket.
As a further scheme of the utility model, the outer surface of one side of the mounting plate, which is close to the guide rod, is fixedly provided with a rubber buffer gasket.
As a further scheme of the utility model, the outer surface of the shell is uniformly provided with a plurality of radiating fins.
The beneficial effects of the utility model are as follows:
when the electrical components of the frequency converter arranged in the shell break down and get on fire, the trigger mechanism pushes the baffle plate, so that the conducting groove formed in the baffle plate is aligned with the discharge groove formed in the bottom of the fire extinguishing box, and the fire extinguishing material filled in the fire extinguishing box can fall down to extinguish the fire of the electrical components in the shell, control the fire and prevent the electrical components in the shell from being damaged more seriously.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an explosion-proof housing of a frequency converter according to the present utility model;
fig. 2 is a schematic diagram of the internal structure of an explosion-proof housing of a frequency converter according to the present utility model;
fig. 3 is a schematic diagram of a fire extinguishing box of an explosion-proof housing of a frequency converter according to the present utility model;
fig. 4 is a schematic diagram of the internal structure of a fire extinguishing box of an explosion-proof housing of a frequency converter according to the present utility model;
fig. 5 is a schematic diagram of a baffle structure of an explosion-proof housing of a frequency converter according to the present utility model;
fig. 6 is an enlarged view of the structure at a in fig. 5.
In the figure: 1. a housing; 2. a back plate; 3. a fire extinguishing box; 4. a discharge chute; 5. a material guide plate; 6. a baffle; 7. a conduction groove; 8. a guide rod; 9. an L-shaped plate; 10. a mounting plate; 11. a compression spring; 12. a limiting ring; 13. a glue buffer gasket; 14. a top plate; 15. a glass tube; 16. a heat radiation fin; 17. t-shaped clamping strips.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Examples
Referring to fig. 1-6, an explosion-proof shell of a frequency converter comprises a shell 1 and a back plate 2, one side of the shell 1 is of an opening structure, the shell 1 and the back plate 2 are detachably mounted through screws, a fire extinguishing box 3 is fixedly mounted on the top wall of the shell 1, fire extinguishing materials are filled in the fire extinguishing box 3, the fire extinguishing materials are preferably dry powder for fire extinguishing of electric appliances, a plurality of discharge tanks 4 are uniformly penetrated through the bottom of the fire extinguishing box 3, a baffle 6 for blocking the discharge tanks 4 is slidably mounted on the bottom of the fire extinguishing box 3, two T-shaped clamping strips 17 are symmetrically and fixedly mounted on the upper surface of the baffle 6, two T-shaped clamping grooves matched with the T-shaped clamping strips 17 are formed in the bottom of the fire extinguishing box 3, the T-shaped clamping strips 17 are slidably mounted on the inner walls of the T-shaped clamping strips 17, the baffle 6 and the fire extinguishing box 3 are slidably connected through the T-shaped clamping strips 17, a plurality of conducting grooves 7 matched with the discharge tanks 4 are uniformly penetrated through the outer surface of the baffle 6, a mounting plate 10 is fixedly mounted on the lower surface of the end, close to the opening end of the shell 1, of the fire extinguishing box 3, and a triggering mechanism is arranged between the baffle 6 and the mounting plate 10.
In this embodiment, the triggering mechanism includes a top plate 14 fixedly installed on the outer surface of the baffle 6 near the side of the mounting plate 10, a glass tube 15 is installed on the outer surface of the top plate 14 near the side of the mounting plate 10, and the glass tube 15 is filled with a thermal expansion liquid, preferably alcohol or mercury.
In this embodiment, the outer surface of the mounting plate 10 near one side of the baffle 6 is fixedly provided with two guide rods 8, the outer surface of one side of the baffle 6 near the guide rods 8 is respectively fixedly provided with two L-shaped plates 9, the guide rods 8 penetrate through the outer surfaces of the L-shaped plates 9 and are slidably mounted with the L-shaped plates, and the outer surfaces of the guide rods 8 are provided with abutting components.
In this embodiment, support tight subassembly including fixed mounting in guide arm 8 keep away from spacing ring 12 of mounting panel 10 one end tip, the surface cover of guide arm 8 is equipped with compression spring 11, and compression spring 11 sets up between the surface of spacing ring 12 and L shaped plate 9, and compression spring 11's initial state is compressed state, and after glass pipe 15 drops, compression spring 11 can promote L shaped plate 9 resilience.
In this embodiment, the outer surface of the mounting plate 10 near one side of the guide rod 8 is fixedly provided with a rubber buffer gasket 13, and the rubber buffer gasket 13 can buffer the impact force between the L-shaped plate 9 and the mounting plate 10, so that the service life of the L-shaped plate 9 is prolonged.
In this embodiment, the inner wall that fire extinguishing box 3 is close to discharge groove 4 both ends is inclined fixed mounting respectively has two stock guides 5, can be with the fire extinguishing material guide discharge groove 4 department of filling in fire extinguishing box 3 through two stock guides 5, makes things convenient for the fire extinguishing material blanking.
In this embodiment, the outer surface of the housing 1 is uniformly provided with a plurality of heat dissipation fins 16, and heat generated during operation of electrical components in the housing 1 can be effectively dissipated through the plurality of heat dissipation fins 16.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: in the use process, when an electrical component of the frequency converter installed in the shell 1 breaks down and fires, the temperature of flame will bake the glass tube 15 arranged between the top plate 14 and the mounting plate 10, so that the thermal expansion liquid in the glass tube 15 is heated and expanded, the thermal expansion liquid expands and breaks the glass tube 15, the glass tube 15 falls off, at this time, the compression spring 11 arranged on the guide rod 8 will reset, the compression spring 11 pushes the baffle 6 through the L-shaped plate 9, the conducting groove 7 arranged on the baffle 6 is aligned with the discharge groove 4 arranged at the bottom of the fire extinguishing box 3, the fire extinguishing material filled in the fire extinguishing box 3 can fall down, the electrical component in the shell 1 is extinguished, the fire is controlled, and the electrical component in the shell 1 is prevented from being seriously damaged.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an explosion-proof casing of converter, includes shell (1) and backplate (2), one side of shell (1) is open structure, and shell (1) and backplate (2) pass through screw demountable installation, a serial communication port, roof fixed mounting of shell (1) has fire extinguishing box (3), the inside of fire extinguishing box (3) is filled there is fire extinguishing material, many discharge grooves (4) have evenly been run through to the bottom of fire extinguishing box (3), the bottom slidable mounting of fire extinguishing box (3) has baffle (6) that are used for shutoff discharge groove (4), the surface of baffle (6) evenly runs through offered many with discharge groove (4) assorted conduction groove (7), the lower surface fixed mounting that fire extinguishing box (3) is close to shell (1) open end has mounting panel (10), be equipped with trigger mechanism between baffle (6) and mounting panel (10).
2. The explosion-proof housing of a frequency converter according to claim 1, wherein the triggering mechanism comprises a top plate (14) fixedly mounted on the outer surface of one side of the baffle plate (6) close to the mounting plate (10), a glass tube (15) is mounted on the outer surface of one side of the top plate (14) close to the mounting plate (10), and the interior of the glass tube (15) is filled with thermal expansion liquid.
3. The explosion-proof housing of a frequency converter according to claim 1, wherein the outer surface of one side of the mounting plate (10) close to the baffle plate (6) is fixedly provided with two guide rods (8), the outer surface of one side of the baffle plate (6) close to the guide rods (8) is fixedly provided with two L-shaped plates (9) respectively, the guide rods (8) penetrate through the outer surfaces of the L-shaped plates (9) and are slidably mounted with the L-shaped plates, and the outer surfaces of the guide rods (8) are provided with abutting components.
4. A frequency converter explosion-proof housing according to claim 3, wherein the tightening assembly comprises a limiting ring (12) fixedly mounted on one end part of the guide rod (8) far away from the mounting plate (10), a compression spring (11) is sleeved on the outer surface of the guide rod (8), and the compression spring (11) is arranged between the limiting ring (12) and the outer surface of the L-shaped plate (9).
5. The explosion-proof housing of a frequency converter according to claim 1, wherein a rubber buffer gasket (13) is fixedly arranged on the outer surface of one side of the mounting plate (10) close to the guide rod (8).
6. The explosion-proof housing of a frequency converter according to claim 1, wherein two material guide plates (5) are respectively and fixedly installed on the inner walls of the fire extinguishing box (3) close to the two ends of the discharge groove (4) in an inclined mode.
7. The explosion-proof housing of a frequency converter according to claim 1, characterized in that the outer surface of the housing (1) is uniformly provided with a plurality of heat radiating fins (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320276503.6U CN219372805U (en) | 2023-02-22 | 2023-02-22 | Explosion-proof shell of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320276503.6U CN219372805U (en) | 2023-02-22 | 2023-02-22 | Explosion-proof shell of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219372805U true CN219372805U (en) | 2023-07-18 |
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ID=87137193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320276503.6U Active CN219372805U (en) | 2023-02-22 | 2023-02-22 | Explosion-proof shell of frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219372805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117220147A (en) * | 2023-10-29 | 2023-12-12 | 世柜电气设备(苏州)有限公司 | Switch board with safety structure |
-
2023
- 2023-02-22 CN CN202320276503.6U patent/CN219372805U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117220147A (en) * | 2023-10-29 | 2023-12-12 | 世柜电气设备(苏州)有限公司 | Switch board with safety structure |
| CN117220147B (en) * | 2023-10-29 | 2024-05-03 | 世柜电气设备(苏州)有限公司 | Switch board with safety structure |
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