CN219917025U - Fireproof relay cover of refrigeration compressor - Google Patents
Fireproof relay cover of refrigeration compressor Download PDFInfo
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- CN219917025U CN219917025U CN202321342687.8U CN202321342687U CN219917025U CN 219917025 U CN219917025 U CN 219917025U CN 202321342687 U CN202321342687 U CN 202321342687U CN 219917025 U CN219917025 U CN 219917025U
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- metal
- fire
- shell
- relay cover
- protection frame
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 157
- 239000004033 plastic Substances 0.000 claims abstract description 35
- 229920003023 plastic Polymers 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 12
- 230000001012 protector Effects 0.000 claims abstract description 12
- 239000007858 starting material Substances 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 239000003063 flame retardant Substances 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model discloses a fireproof relay cover of a refrigeration compressor, which comprises a metal protection frame for installing a starter and a protector, and a plastic inner shell connected with the metal protection frame, wherein a metal outer shell is sleeved outside the plastic inner shell, a metal wrapping edge is arranged around the metal protection frame, and the opening end of the metal outer shell is wrapped in the metal wrapping edge and is in sealing connection; an elastic metal strap is arranged in the circumferential direction of the metal shell, and the elastic metal strap is bound with the metal shell and is detachably connected with the metal wrapping edge; and the side walls of the metal outer shell and the plastic inner shell are also provided with wiring holes, and the positions of the wiring holes are filled with fire-resistant sealing structures for wrapping cables. This fire prevention relay cover has very good fire prevention and fire-retardant effect, can ensure that the intensity of a fire can not spread out the relay cover after relay cover inner space fires, has the ability of extinguishing to the intensity of a fire simultaneously, avoids the production of outside open flame, promotes the factor of safety that refrigeration compressor used.
Description
Technical Field
The utility model relates to the technical field of compressor relays, in particular to a fireproof relay cover of a refrigeration compressor.
Background
When the refrigeration compressor is used, the protector or the starter generates sparks due to improper use, aging of internal circuits of refrigeration equipment, short circuit and the like, and finally the relay cover is burnt out to form a fire disaster.
The plastic relay cover used in the current refrigeration compressors (such as refrigerator compressors) has a flame retardant effect, but if the open fire is large, such as the leakage of the refrigerant of a refrigerator system, the plastic relay cover cannot play a role in protection, so that a household fire disaster is formed.
The highest fire-proof grade of the current plastic relay cover material is 5VA, and the material can be naturally extinguished when a fire source is extinguished or separated, but if open fire with long duration or large range exists, the relay cover can be burnt through finally, and internal flames leak.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a fireproof relay cover of a refrigeration compressor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the fireproof relay cover of the refrigeration compressor comprises a plastic inner shell, wherein a metal outer shell is sleeved outside the plastic inner shell, and the metal outer shell and the opening end of the plastic inner shell are in sealing connection with a metal protection frame; the circumference of metal casing still is equipped with the elasticity strap, the elasticity strap constraint the metal casing and with the metal of metal protection frame bordures detachable connection.
Further, the side walls of the metal outer shell and the plastic inner shell are also provided with wiring holes, and the wiring holes are filled with fire-resistant sealing structures for wrapping cables.
This a fire prevention relay cover for refrigeration compressor is through being in be equipped with outside the plastics inner shell metal housing makes it have very good fire prevention and fire-retardant effect, can ensure that the intensity of a fire can not spread out the relay cover after relay cover inner space fires, has isolated and extinguishing ability to the intensity of a fire simultaneously, avoids the production of outside open fire, promotes the factor of safety that refrigeration compressor used, reduces user's conflagration probability of occurrence. And the whole structure is simple, easy to manufacture and assemble, does not need to set up complicated fire extinguishing mechanism and flame retardant mechanism, does not influence the normal installation and use of protector and starter of the compressor, basically does not occupy too much external space in space, and does not influence the installation and arrangement of the original compressor.
The metal shell is basically in sealing connection with the metal protection frame, when a fire disaster is caused by circuit problems or refrigerant leakage and the like in the relay cover, the sealing structure formed by the metal shell and the metal protection frame can prevent the fire disaster from spreading outwards on one hand, and on the other hand, because of the sealing isolation effect, the external space is difficult to enter, the air in the relay cover cannot be supplemented after being consumed, the fire disaster can be weakened until the fire disaster is extinguished, and the natural fire extinguishing effect is achieved.
The setting of elasticity strap can connect the metal is bordured, makes metal casing and metal protection frame zonulae occludens and fixed, moreover the elasticity strap can be dismantled, when the relay cover breaks down or damage because of the burning back, can take off the elasticity strap, complete removal metal casing changes the maintenance to inside protector and starter.
Further, the side wall of the metal outer shell and the side wall of the plastic inner shell are respectively provided with a concave guide part, the guide parts on the same side are connected together in a sliding and clamping manner, and the elastic metal belt is arranged at the circumferential position where the guide parts are located.
The plastic inner shell is conveniently and accurately embedded into the metal outer shell under the clamping guiding action of the guiding part, and the outer contour size of the plastic inner shell is slightly larger than the inner contour size of the metal outer shell under the natural state.
Furthermore, the guide parts extend from one side close to the protective frame to the other side, and arc-shaped transition structures are formed at the corners of the side walls, so that stress concentration at the corners can be avoided, and connection arrangement of the elastic metal strips is facilitated.
Further, the outer surfaces of the metal shell and the metal protection frame are respectively provided with an anti-corrosion and anti-rust coating, or the periphery of the metal shell is wrapped with a layer of plastic shell.
The corrosion-resistant and rust-resistant coating fires the plastic shell can improve the corrosion resistance of the metal shell, avoid the damage caused by corrosion and rust, and ensure the long-term stable isolation capability.
Further, the elastic metal strap comprises an integrally formed wavy bending part, a side binding part and a connecting end, and a pair of the side binding parts are splayed; the wave bending parts are abutted on the end face, far away from the metal protection frame, of the metal shell, the pair of side binding parts are abutted on the side wall of the metal shell, and the connecting end is detachably connected with the metal wrapping edge in a clamping, hooking or buckling mode.
Through the arrangement of the elastic metal belt, the side binding part can be clamped on the side wall of the metal shell by utilizing the deformability of the wavy bending part, namely the guiding part is connected with the connecting end head, so that the metal shell is firmly connected with the metal protection frame.
Further, the metal wrapping edge comprises a bent side wrapping edge, a bent top wrapping edge and a bending baffle arranged at the bottom edge of the metal protection frame. The bending baffle is used for positioning and mounting and supporting the metal shell.
Further, the fire-resistant sealing structure is a fire-resistant sealing mud strip plugged in the wiring hole. The setting of wiring hole makes things convenient for the cable of relay to pass, adopts fire-resistant seal structure handles, makes it have stronger fire-resistant and flame retardant efficiency under the high temperature.
In some embodiments, the plastic inner shell is provided with heat dissipation holes, so that heat generated in the relay cover can be transferred to the metal outer shell in the normal process of the relay, and the heat dissipation is performed by utilizing the larger surface area of the metal outer shell, so that heat concentration is reduced; there is also a method in which heat is radiated by providing a heat radiation fin connected to the metal case in the relay cover.
Further, the metal protection frame is fixed on the outer side of the shell of the refrigeration compressor in a welding mode, and the starter and the protector of the refrigeration compressor are arranged on the inner side of the metal protection frame.
Compared with the prior art, the utility model has the beneficial effects that: 1. according to the fireproof relay cover for the refrigeration compressor, the metal outer shell is arranged outside the plastic inner shell, so that the fireproof relay cover has very good fireproof and fire-retarding effects, the relay cover can be ensured not to spread fire after the internal space of the relay cover is on fire, meanwhile, the fireproof relay cover has the capability of isolating and extinguishing fire, the generation of external open fire is avoided, the safety coefficient of the refrigeration compressor is improved, and the occurrence probability of fire of a user is reduced; 2. the fireproof relay cover has the advantages that the whole structure is simple, the manufacturing and the assembly are easy, a complex fire extinguishing mechanism and a complex flame retardant mechanism are not required to be arranged, the normal installation and the use of a protector and a starter of the compressor are not influenced, the space basically does not occupy too much external space, and the installation and the arrangement of the original compressor are not influenced; 3. the sealing structure formed by the metal shell and the metal protection frame can prevent fire from spreading outwards, and on the other hand, because of the sealing and isolating effects, the external space is difficult to enter, the air in the relay cover cannot be supplemented after being consumed, and the fire can be weakened until the fire is extinguished, so that the natural fire extinguishing effect is achieved; 4. the setting of elasticity strap can make metal casing and metal protection frame zonulae occludens and fixed, moreover the elasticity strap can dismantle, and when the relay cover breaks down or damage because of burning, can take off the elasticity strap, complete the removal metal casing changes the maintenance to inside protector and starter.
Drawings
FIG. 1 is a schematic view of the overall structure of a fire relay cover of a refrigeration compressor according to the present utility model;
FIG. 2 is a schematic diagram of an explosion structure of a fire relay cover of a refrigeration compressor according to the present utility model;
FIG. 3 is a schematic view of the metal shell structure of a fire relay cover of a refrigeration compressor according to the present utility model;
FIG. 4 is a schematic view of a resilient metal strip of a fire relay cover for a refrigeration compressor according to the present utility model;
FIG. 5 is a schematic view of the construction of the fire relay cover of the present utility model mounted on a refrigeration compressor;
in the figure: 1. a metal protective frame; 101. metal edge wrapping; 102. bending the baffle; 2. a metal housing; 3. a plastic inner shell; 4. a protector; 5. a starter; 6. an elastic metal band; 601. a wavy bending part; 602. a side binding portion; 603. a connecting end; 7. a wiring hole; 8. a guide part; 9. a compressor housing; 10. a compressor foot; 11. refrigerator ground screw hole; 12. and (5) identification.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships 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 element to be 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.
As shown in fig. 1 to 3, a fireproof relay cover of a refrigeration compressor comprises a metal protection frame 1 provided with a protector 4 and a starter 5, and a plastic inner shell 3 connected with the metal protection frame 1, wherein a metal outer shell 2 is sleeved outside the plastic inner shell 3, a metal wrapping edge 101 is arranged around the metal protection frame 1, and the opening end of the metal outer shell 2 is wrapped in the metal wrapping edge 101 and is in sealing connection; the circumference of the metal shell 2 is also provided with an elastic metal strap 6, and the elastic metal strap 6 is used for binding the metal shell 2 and is detachably connected with the metal wrapping edge 101.
The side walls of the metal outer shell 2 and the plastic inner shell 3 are also provided with wire holes 7, and the wire holes 7 are filled with fire-resistant sealing structures for wrapping cables.
This a fire prevention relay cover for refrigeration compressor is through being in be equipped with outside the plastics inner shell 3 metal housing 2 makes it have very good fire prevention and fire-retardant effect, can ensure that the intensity of a fire can not spread out the relay cover after relay cover inner space fires, has isolated and extinguishing ability to the intensity of a fire simultaneously, avoids the production of outside open fire, promotes the factor of safety that refrigeration compressor used, reduces user's conflagration probability of occurrence. And the whole structure is simple, easy to manufacture and assemble, does not need to set up complicated fire extinguishing mechanism and flame retardant mechanism, does not influence the normal installation and use of the protector 4 and the starter 5 of the compressor, basically does not occupy too much external space in space, and does not influence the installation and arrangement of the original compressor.
The metal shell 2 is basically in sealing connection with the metal protection frame 1, when a fire disaster is caused by circuit problems or refrigerant leakage and the like in the relay cover, the sealing structure formed by the metal shell 2 and the metal protection frame 1 can prevent the fire disaster from spreading outwards on one hand, and on the other hand, because of the sealing isolation effect, the external space is difficult to enter, the air in the relay cover cannot be supplemented after being consumed, and the fire disaster can be weakened until the fire disaster is extinguished, so that the natural fire extinguishing effect is achieved.
The setting of elastic metal strap 6 can connect the metal is bordured 101, makes metal casing 2 and metal protection frame 1 zonulae occludens and fixed, moreover elastic metal strap 6 can dismantle, when the relay cover breaks down or damage because of burning, can take off elastic metal strap 6, the complete removal metal casing 2 changes the maintenance to inside protector and starter.
The metal protection frame 1, the metal shell 2 and the elastic metal belt 6 are made of fireproof materials, have a higher-level fireproof effect, and avoid the cover body from being burnt through. Meanwhile, the metal shell 2 can also play a role in water resistance, and in the normal operation process, water vapor generated near the refrigerator compressor can not invade the relay cover, so that the working stability and the service life of the relay are improved.
Further, the side walls of the metal outer shell 2 and the side walls of the plastic inner shell 3 are respectively provided with a concave guiding part 8, the guiding parts 8 on the same side are connected together in a sliding and clamping manner, and the elastic metal belt 6 is arranged at the circumferential position of the guiding part 8.
The plastic inner shell 3 is accurately embedded into the metal outer shell 2 by utilizing the clamping and guiding effects of the guiding parts 8, and in a natural state, the outer contour size of the plastic inner shell 3 is slightly larger than the inner contour size of the metal outer shell 2, and the plastic inner shell 3 has certain plasticity and deformation capacity and can be clamped in the metal outer shell 2 in an interference manner, so that the plastic inner shell 3 and the metal outer shell are tightly connected.
The elastic metal band 6 is arranged at the guide part, so that the elastic metal band 6 can be limited by utilizing a concave structure to avoid shaking up and down, and the concave space can accommodate the side binding part of the elastic metal band to reduce the space occupation of two sides.
Further, the guiding portions 8 extend from one side close to the protecting frame to the other side, and arc-shaped transition structures are formed at the corners of the side walls, so that stress concentration at the corners can be avoided, and connection arrangement of the elastic metal strips 6 is facilitated.
In some embodiments, the metal shell 2 and the periphery of the metal protection frame 1 are provided with an anti-corrosion and anti-rust paint layer, wherein the anti-corrosion and anti-rust paint layer is formed by adopting a process of painting, dipping or electrophoretic paint, and is subjected to anti-rust treatment through a process of bluing and secondary tempering; through the arrangement of the anti-corrosion and anti-rust paint layer, the metal shell has better corrosion resistance, can not corrode and rust in a long-term dark and humid environment, can not be worn out, and can not influence the fireproof effect.
In other embodiments, a plastic shell is further arranged outside the metal shell 2 to form a sandwich structure with three layers, and the sandwich structure can also play a role in corrosion prevention and rust prevention, and is simpler than the arrangement of a paint layer.
Further, as shown in fig. 4, the elastic metal band 6 includes an integrally formed buckle 601, a side binding portion 602, and a connecting end 603, and the pair of side binding portions 602 have a splayed structure; the wavy bending part 601 is abutted on the end face, far away from the metal protection frame, of the metal shell 2, the pair of side binding parts 602 is abutted on the side wall of the metal shell 2, and the connecting end 603 is detachably connected with the metal wrapping edge 101 in a clamping, hooking or buckling mode.
By means of the arrangement of the elastic metal strip 6, the side binding portion 602 can be clamped to the side wall of the metal casing 2 by utilizing the deformability of the wavy bending portion 601, that is, the guiding portion is connected with the connecting end 603, so that the metal casing is firmly connected with the metal protection frame 1.
For example, the metal wrapping 101 is provided with a connection bayonet, and is matched with a hook-type connection end, so that the metal shell and the metal protection frame are tightly attached by utilizing the elasticity of the metal belt, and the effective prevention of air entering is ensured. In addition, the elastic metal band 6 is provided to ensure that the cover is not detached when the refrigeration equipment is transported and dropped.
Further, the metal wrapping 101 includes a side wrapping and a top wrapping that are bent, and a bending baffle 102 disposed at the bottom edge of the metal protection frame 1. The bending baffle 102 is used for positioning and mounting, and supports the metal shell. The housing can be positioned by means of the bending baffle 102, and the metal shell 2 can be prevented from falling off before the elastic metal band 6 is installed.
Furthermore, the refractory sealing structure is a refractory sealing mud strip plugged in the wiring hole 7, and can be solidified to form a seal at high temperature. The setting of wiring hole 7 makes things convenient for the cable of relay to pass, adopts fire-resistant seal structure handles, makes it have stronger fire-resistant and flame retardant efficiency under the high temperature.
As shown in fig. 5, the refrigeration compressor comprises a compressor housing 9, a compressor foot 10 is arranged below the compressor housing 9, the metal protection frame 1 is welded and fixed on one side of the compressor housing 9 through a plurality of welding spots, and the compressor foot 10 is provided with a refrigerator grounding screw hole 11 and a sign 12 at the position staggered with the metal housing 2.
The design is to ensure that the metal shell is tightly attached to the metal protection frame, and the refrigerator grounding screw hole 11 is designed on the compressor foot 10, so that the metal shell 2 is free of redundant openings, and air entering is reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The fireproof relay cover of the refrigeration compressor comprises a plastic inner shell, and is characterized in that a metal outer shell is sleeved outside the plastic inner shell, and the metal outer shell and the opening end of the plastic inner shell are in sealing connection with a metal protection frame; the circumference of metal casing still is equipped with the elasticity strap, the elasticity strap constraint the metal casing and with the metal of metal protection frame bordures detachable connection.
2. The fire relay cover of a refrigeration compressor according to claim 1, wherein the side walls of the metal outer shell and the plastic inner shell are further provided with wire holes, and the wire holes are filled with fire-resistant sealing structures for wrapping cables.
3. The fire-proof relay cover of a refrigeration compressor according to claim 1, wherein the side walls of the metal outer shell and the plastic inner shell are respectively provided with a concave guiding part, the guiding parts on the same side are connected together in a sliding and clamping manner, and the elastic metal belt is arranged at the circumferential position of the guiding parts.
4. A fire relay cover for a refrigerant compressor as set forth in claim 3, wherein the guide portions each extend from one side adjacent to the protective frame to the other side and form an arcuate transition at a corner of the side wall.
5. The fire-proof relay cover of a refrigeration compressor according to claim 1, wherein the outer surfaces of the metal shell and the metal protection frame are provided with an anti-corrosion and rust-proof coating, or the outer periphery of the metal shell is further wrapped with a plastic shell.
6. The fire relay cover of a refrigeration compressor of claim 1, wherein the elastic metal band comprises an integrally formed wave bending part, a side binding part and a connecting end, and a pair of the side binding parts are splayed; the wave bending parts are abutted on the end face, far away from the metal protection frame, of the metal shell, the pair of side binding parts are abutted on the side wall of the metal shell, and the connecting end is detachably connected with the metal wrapping edge in a clamping, hooking or buckling mode.
7. The refrigerant compressor fire relay cover of claim 1, wherein the metal trim includes a bent side trim and a top trim, and a bent baffle disposed at a bottom edge of the metal shield.
8. The refrigerant compressor fire relay cover of claim 2, wherein the fire resistant sealing structure is a fire resistant sealing mud strip plugged in the routing hole.
9. The refrigerant compressor fire relay cover according to claim 1, wherein the metal protection frame is fixed to the outer side of the refrigerant compressor shell by welding, and the inner side of the metal protection frame is provided with a starter and a protector of the refrigerant compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342687.8U CN219917025U (en) | 2023-05-30 | 2023-05-30 | Fireproof relay cover of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321342687.8U CN219917025U (en) | 2023-05-30 | 2023-05-30 | Fireproof relay cover of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917025U true CN219917025U (en) | 2023-10-27 |
Family
ID=88439236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321342687.8U Active CN219917025U (en) | 2023-05-30 | 2023-05-30 | Fireproof relay cover of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917025U (en) |
-
2023
- 2023-05-30 CN CN202321342687.8U patent/CN219917025U/en active Active
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