CN220661942U - Environment-friendly polyurethane refrigeration house plate - Google Patents
Environment-friendly polyurethane refrigeration house plate Download PDFInfo
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- CN220661942U CN220661942U CN202321772094.5U CN202321772094U CN220661942U CN 220661942 U CN220661942 U CN 220661942U CN 202321772094 U CN202321772094 U CN 202321772094U CN 220661942 U CN220661942 U CN 220661942U
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- refrigeration house
- plate
- refrigeration
- adsorption layer
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 83
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 title claims abstract description 33
- 238000001179 sorption measurement Methods 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 31
- 239000010935 stainless steel Substances 0.000 claims description 31
- 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 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 4
- 239000004917 carbon fiber Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 239000011162 core material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010073 coating (rubber) Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000013611 frozen food Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000012494 Quartz wool Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Refrigerator Housings (AREA)
Abstract
The utility model discloses an environment-friendly polyurethane refrigeration house plate, which comprises a refrigeration house plate body and a first adsorption layer arranged in the refrigeration house plate body, wherein a plurality of ventilation holes are formed in the surface of one side of the refrigeration house plate body facing to a refrigeration house, and the first adsorption layer comprises a steel plate and an active carbon fiber layer arranged on the outer surface of the steel plate. The utility model adsorbs the peculiar smell generated in the refrigerator through the active carbon fiber layer arranged on the first adsorption layer in the refrigerator plate body, and has the beneficial effects of effectively adsorbing the peculiar smell and avoiding the peculiar smell from being directly discharged into the air.
Description
Technical Field
The utility model relates to a refrigeration house plate technology. More particularly, the utility model relates to an environment-friendly polyurethane refrigeration house plate.
Background
The cold storage refers to a constant temperature and humidity storage device which is used for creating an environment different from the outdoor temperature or humidity by manual means and also is used for food, liquid, chemical industry, medicine, vaccine, scientific experiments and other articles. The wallboard of freezer needs to use the polylith to have the heat preservation effect's refrigeration house plate to improve the heat preservation effect of freezer, avoids outside heat to get into the freezer fast, and needs artifical rubber coating to connect usually between the polylith refrigeration house plate, but the adhesion layer that part was preset exposes for a long time and is stained with a large amount of dust easily in the outside, can influence the viscidity of adhesion layer, and the installation is wasted time and energy, is unfavorable for actual use.
The polyurethane refrigeration house plate takes light polyurethane as an inner core material of the refrigeration house plate. The polyurethane refrigeration house plate has very good heat insulation performance, and the outer part of the polyurethane refrigeration house plate is formed by a color steel plate and a stainless steel plate component, so that the propagation of temperature caused by large temperature difference between the inside and the outside of the refrigeration house plate is prevented, the refrigeration house is more energy-saving and environment-friendly, and the working efficiency of the refrigeration house is improved. The polyurethane material has stable porosity structure and basically closed-cell structure, and has excellent heat preservation performance, freeze thawing resistance and sound absorption.
The existing refrigerator is mainly used for freezing meat foods, and has the problem that a large amount of peculiar smell is easy to generate after long-term use, while the traditional refrigerator lacks a peculiar smell adsorption device, and when the door of the refrigerator is opened, waste gas is generated to be discharged outside the refrigerator, so that air is easy to be polluted, and environmental protection is not facilitated. Therefore, how to design the structure of the refrigeration house plate to obtain the beneficial effects of effectively absorbing peculiar smell and avoiding the peculiar smell from being directly discharged into the air is worth and a great deal.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided an environment-friendly polyurethane refrigeration house plate comprising a refrigeration house plate body and a first adsorption layer disposed in the refrigeration house plate body, wherein a plurality of ventilation holes are formed in a side surface of the refrigeration house plate body facing the refrigeration house, and the first adsorption layer comprises a steel plate and an activated carbon fiber layer disposed on an outer surface of the steel plate.
Preferably, the refrigeration house plate body comprises a stainless steel layer, a color steel plate layer and a filling layer arranged between the stainless steel layer and the color steel plate layer, wherein the filling layer comprises a heat preservation layer, a waterproof layer, a polyurethane plate core, a fireproof layer and a heat insulation layer which are sequentially arranged from the stainless steel layer to the color steel plate layer.
Preferably, a flame retardant layer is provided in the flame retardant layer.
Preferably, the first adsorption layer is arranged between the stainless steel layer and the filling layer, and the air holes are formed in one side of the stainless steel layer, which faces the refrigerator.
Preferably, the first adsorption layer has a zigzag structure.
Preferably, the device further comprises a second adsorption layer, wherein the second adsorption layer is arranged between the first adsorption layer and the filling layer, and the second adsorption layer is an activated carbon layer.
Preferably, two sides of the first adsorption layer are respectively adhered to the stainless steel layer and the second adsorption layer, and form a plurality of triangular cavities.
Preferably, at least one pair of slots are formed in two sides of the refrigeration house plate body;
the refrigerator plate further comprises at least one pair of inserting rods, the pair of inserting rods are correspondingly inserted into the pair of slots, and the inserting rods are inserted between the two adjacent refrigerator plate bodies.
Preferably, the cross-sectional shape of the insert rod is a pentagram-like shape.
Preferably, the thickness of the first adsorption layer is 10 to 15mm.
The utility model at least comprises the following beneficial effects:
the first and second adsorption layers are arranged on the first adsorption layer in the refrigeration house plate body, so that the odor generated by long-term frozen foods in the refrigeration house is adsorbed, and the beneficial effects of effectively adsorbing the odor and avoiding the direct discharge of the odor into the air are achieved.
And secondly, the utility model adopts the active carbon fiber layer with large specific surface area, developed micropore structure and large adsorption capacity to adsorb the peculiar smell, and can efficiently and rapidly adsorb the peculiar smell.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a side cross-sectional view of the environmentally friendly polyurethane refrigeration house plate according to one embodiment of the present utility model;
FIG. 2 is another side cross-sectional view of the environmentally friendly polyurethane refrigeration board according to one embodiment of the present utility model;
FIG. 3 is a schematic structural view of the environment-friendly polyurethane refrigeration house plate according to one technical scheme of the utility model;
fig. 4 is a side view of the environment-friendly polyurethane refrigeration house plate according to one embodiment of the present utility model.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, are all commercially available; in the description of the present utility model, the orientation or positional relationship indicated by the terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 1 to 4, the utility model provides an environment-friendly polyurethane refrigeration house plate, which comprises a refrigeration house plate body 1 and a first adsorption layer 5 arranged in the refrigeration house plate body 1, wherein a plurality of ventilation holes are formed in the surface of one side of the refrigeration house plate body 1 facing to a refrigeration house, and the first adsorption layer 5 comprises a steel plate and an active carbon fiber layer arranged on the outer surface of the steel plate; specifically, the refrigeration house plate body 1 may be a plate structure formed by bonding and combining a stainless steel plate, a color steel plate and a polyurethane plate core 43, the first adsorption layer 5 may be bonded between the stainless steel plate and the polyurethane core of the refrigeration house plate body 1, the air holes may be circular, rectangular or square in shape so as to allow the odor air in the refrigeration house frozen with frozen foods to permeate and fully contact with the first adsorption layer 5 to enable the odor air to be effectively adsorbed, wherein the first adsorption layer 5 may comprise a steel plate and an activated carbon fiber layer bonded and coated on the outer surface of the steel plate, the activated carbon fiber diameter in the activated carbon fiber layer is 5-20 μm, and the specific surface area is 1000-1500 m on average 2 And/g, the average pore diameter is 1-4 nm, and the cold storage plate has the advantages of small fiber diameter, large specific surface area, developed micropore structure, small pore diameter, narrow distribution, large adsorption capacity and the like, so that the contact area of the first adsorption layer 5 and peculiar smell in the air is large, the adsorption efficiency is improved, and the steel plate prevents the air with peculiar smell from entering the cold storage plate body 1 so as to influence the heat preservation and insulation performance of the cold storage plate body.
In another technique, the refrigeration house plate body 1 comprises a stainless steel layer 2, a color steel plate layer and a filling layer 4 arranged between the stainless steel layer 2 and the color steel plate layer, wherein the filling layer 4 comprises a heat preservation layer 41, a waterproof layer 42, a polyurethane plate core 43, a fireproof layer 44 and a heat insulation layer 45 which are sequentially arranged along the stainless steel layer 2 to the color steel plate layer; wherein, the heat-insulating layer 41 may be rice husk or expanded perlite, which has the advantage of small heat conductivity, so as to better perform the heat-insulating function; the waterproof layer 42 may be a linoleum or an asphalt plastic film so as to prevent water in the refrigerator from wetting the refrigeration house plate body 1; the polyurethane has better performances such as fire resistance, flame retardance, high temperature resistance, moisture resistance, water resistance, heat insulation and the like, so that the polyurethane plate core 43 has the advantages of low heat conductivity, good thermal performance, strong deformation resistance and the like, further keeps heat and insulates, prevents the cold storage plate from spreading due to larger temperature difference between the inside and the outside, further saves energy and protects the environment of the cold storage, and improves the working efficiency of the cold storage; the fireproof layer 44 may be a mineral wool board, a glass wool board, a gypsum board or a perlite board to further increase the fireproof performance of the refrigeration board body 1; the heat insulating layer 45 may be made of glass fiber or quartz wool, and has a certain effect of blocking heat conduction, so as to further increase the heat insulating performance of the refrigeration house plate body 1, and prevent the refrigeration house from transmitting temperature with the outside; the stainless steel layer 2 and the color steel layer 3 are arranged on two sides of the filling layer 4, so that the performance of heat preservation, fire prevention, heat insulation and the like of the filling layer 4 for a long time can be protected, the refrigeration house plate body 1 has certain strength and hardness, and the compression resistance of the refrigeration house plate body is improved.
In another technique, a flame retardant layer is disposed in the flame retardant layer 44; specifically, the material of the flame retardant layer may be an inorganic flame retardant such as aluminum hydroxide, magnesium hydroxide or red phosphorus, and the flame retardant has the advantages of small addition amount, high flame retardant efficiency, and the like, so that the flame retardant performance of the flame retardant layer 44 is improved.
In another technique, the first adsorption layer 5 is arranged between the stainless steel layer 2 and the filling layer 4, and the ventilation holes are formed in one side of the stainless steel layer 2 facing the refrigerator; specifically, peculiar smell air in the freezer is followed the bleeder vent gets into in the refrigeration house plate body 1, until fully contact is located stainless steel layer 2 with the filling layer 4 between first adsorbed layer 5 utilizes activated carbon fiber layer on the first adsorbed layer 5 effectively adsorbs the peculiar smell, wherein, stainless steel layer 2 can be thin corrosion resistant plate, first adsorbed layer 5 set up in between stainless steel layer 2 with filling layer 4, both be favorable to adsorbing the peculiar smell, can not increase in particular again the thickness of stainless steel layer 2, and then realize the beneficial effect of non-increase use cost.
In another technique, the first adsorption layer 5 has a zigzag structure; the first adsorption layer 5 is arranged in a zigzag manner, the upper and lower vertexes of the first adsorption layer 5 are respectively bonded with the stainless steel layer 2 and the filling layer 4, namely, the first adsorption layer 5 is respectively stressed mutually with the stainless steel layer 2 and the filling layer 4, thereby being beneficial to increasing the contact area of peculiar smell and the activated carbon fiber layer, improving the peculiar smell adsorption effect and increasing the compression resistance of the refrigeration house plate body 1.
In another technique, the device further comprises a second adsorption layer 6 arranged between the first adsorption layer 5 and the filling layer 4, wherein the second adsorption layer 6 is an activated carbon layer; the second adsorption layer 6 can be adhered between the first adsorption layer 5 and the filling layer 4 through structural adhesive, the thickness of the second adsorption layer 6 can be 5-8 mm, and the activated carbon of the second adsorption layer 6 can adsorb the peculiar smell in the air of the refrigerator, which is not fully adsorbed or overflowed by the first adsorption layer 5, and can adsorb the peculiar smell generated by the materials in the polyurethane board core 43, the fireproof layer 44 and the like when the refrigeration house plate body 1 is formed in a combined way, so that the peculiar smell generated by the materials is prevented from entering the refrigeration house to influence the food refrigeration effect.
In another technique, two sides of the first adsorption layer 5 are respectively adhered to the stainless steel layer 2 and the second adsorption layer 6, and form a plurality of triangular cavities; specifically, both sides of the first adsorption layer 5 may be adhered with the stainless steel layer 2 and the second adsorption layer 6 by using a structural adhesive, so that the first adsorption layer 5 is stressed with the stainless steel layer 2 and the filling layer 4, respectively, a plurality of triangular cavities are formed between the second adsorption layer 6 and the stainless steel layer 2, and the triangles have structural stability, thereby increasing the compression resistance of the refrigeration house plate body 1, so that the refrigeration house plate body 1 is used for placing articles.
In another technique, two sides of the refrigeration house plate body 1 are provided with at least one pair of slots 11;
the refrigerator plate further comprises at least one pair of inserting rods 7, wherein the pair of inserting rods 7 are correspondingly inserted into the pair of slots 11, and the inserting rods 7 are inserted between two adjacent refrigerator plate bodies 1; the shape of slot 11 can be circular, rectangle or pentagram, slot 11 can be located the middle part of refrigeration house plate body 1, the cross-sectional shape of inserted bar 7 corresponds slot 11 can be circular, rectangle or pentagram, inserted bar 7 peg graft on slot 11 on two adjacent refrigeration house plate bodies 1, make connection, dismantlement between refrigeration house plate body 1 are simpler, convenient, and do not need to use artificial rubber coating to connect, just inserted bar 7 with slot 11's setting does not influence the l connection degree of difficulty of refrigeration house plate body 1 that is located the refrigeration house both ends, adopts the mode of pegging graft not only makes the connected mode more convenient, can not too much reduce the thickness of refrigeration house plate body 1, influences its heat preservation and insulation's performance.
In another technique, the cross-sectional shape of the plunger 7 is a pentagram; the cross-sectional shape of the inserted link 7 may be a regular pentagonal star shape or a tetragonal star shape, and the shape helps to strengthen the connection firmness between the two refrigeration house plate bodies 1, so that the refrigeration house plate bodies 1 cannot topple or deform in the installation and splicing process.
In another technique, the thickness of the first adsorption layer 5 is 10-15 mm; the thickness of the refrigeration plate body 1 is generally between 100 mm and 200mm, the thickness of the first adsorption layer 5 is set to be 10mm to 15mm, preferably 10mm, and the thickness does not occupy too much of the refrigeration plate body 1 thickness and does not occupy space in a refrigeration warehouse.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. The environment-friendly polyurethane refrigeration house plate is characterized by comprising a refrigeration house plate body and a first adsorption layer arranged in the refrigeration house plate body, wherein a plurality of ventilation holes are formed in the refrigeration house plate body towards one side surface of the refrigeration house, and the first adsorption layer comprises a steel plate and an activated carbon fiber layer arranged on the outer surface of the steel plate.
2. The environmentally friendly polyurethane refrigeration board as claimed in claim 1, wherein the refrigeration board body comprises a stainless steel layer, a color steel plate layer and a filling layer arranged between the stainless steel layer and the color steel plate layer, and the filling layer comprises a heat preservation layer, a waterproof layer, a polyurethane plate core, a fireproof layer and a heat insulation layer which are sequentially arranged from the stainless steel layer to the color steel plate layer.
3. The environmentally friendly polyurethane refrigeration board as claimed in claim 2, wherein a flame retardant layer is provided in the flame retardant layer.
4. The environmentally friendly polyurethane refrigeration house plate as claimed in claim 2, wherein the first adsorption layer is disposed between the stainless steel layer and the filling layer, and the ventilation holes are formed in one side of the stainless steel layer facing the refrigeration house.
5. The environmentally friendly polyurethane refrigeration board as claimed in claim 1, wherein said first adsorption layer has a zigzag structure.
6. The environmentally friendly polyurethane refrigeration board as claimed in claim 2, further comprising a second adsorption layer disposed between said first adsorption layer and said filling layer, said second adsorption layer being an activated carbon layer.
7. The environmentally friendly polyurethane refrigeration board as claimed in claim 6, wherein both sides of said first adsorption layer are bonded with said stainless steel layer and said second adsorption layer, respectively, and constitute a plurality of triangular cavities.
8. The environment-friendly polyurethane refrigeration board as claimed in claim 1, wherein at least one pair of slots are formed in two sides of the refrigeration board body;
the refrigerator plate further comprises at least one pair of inserting rods, the pair of inserting rods are correspondingly inserted into the pair of slots, and the inserting rods are inserted between the two adjacent refrigerator plate bodies.
9. The environmentally friendly polyurethane refrigeration board as claimed in claim 8, wherein the cross-sectional shape of the insert rod is a pentagram-like shape.
10. The environmentally friendly polyurethane refrigeration board as claimed in claim 1, wherein the thickness of the first adsorption layer is 10 to 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321772094.5U CN220661942U (en) | 2023-07-07 | 2023-07-07 | Environment-friendly polyurethane refrigeration house plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321772094.5U CN220661942U (en) | 2023-07-07 | 2023-07-07 | Environment-friendly polyurethane refrigeration house plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220661942U true CN220661942U (en) | 2024-03-26 |
Family
ID=90339834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321772094.5U Active CN220661942U (en) | 2023-07-07 | 2023-07-07 | Environment-friendly polyurethane refrigeration house plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220661942U (en) |
-
2023
- 2023-07-07 CN CN202321772094.5U patent/CN220661942U/en active Active
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