CN111255980A - Vacuum heat insulation plate - Google Patents
Vacuum heat insulation plate Download PDFInfo
- Publication number
- CN111255980A CN111255980A CN202010014097.7A CN202010014097A CN111255980A CN 111255980 A CN111255980 A CN 111255980A CN 202010014097 A CN202010014097 A CN 202010014097A CN 111255980 A CN111255980 A CN 111255980A
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- CN
- China
- Prior art keywords
- core material
- barrier
- vacuum
- barrier piece
- groove
- Prior art date
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- Pending
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- 238000009413 insulation Methods 0.000 title claims abstract description 57
- 230000004888 barrier function Effects 0.000 claims abstract description 54
- 239000011162 core material Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention provides a vacuum insulation panel, which comprises a core material, a first barrier piece and a second barrier piece, wherein the first barrier piece and the second barrier piece are oppositely arranged on two sides of the core material in the thickness direction; a part of the first barrier is recessed to form a groove after pretreatment; the core material is wholly or partially accommodated in the groove; the second barrier piece is in sealing fit with the part outside the groove of the first barrier piece to form a sealing edge extending along the circumferential direction of the core material. The vacuum insulation board has lower vacuum degree and simpler production process.
Description
Technical Field
The invention relates to a heat insulation material, in particular to a vacuum heat insulation plate.
Background
The vacuum insulation panel (VIP panel) is one of vacuum insulation materials, is formed by compounding a filling core material and a vacuum protection surface layer, and effectively avoids heat transfer caused by air convection, so that the heat conductivity coefficient can be greatly reduced to 0.002-0.004w/m.k, which is 1/10 of the heat conductivity coefficient of the traditional insulation material.
The vacuum insulation consists of core insulation, gas adsorbent, desiccant and barrier bags. The heat insulation effect is achieved by vacuumizing the core material and the barrier bag and reducing the heat transfer of the gas in the heat insulation plate.
The existing manufacturing process of the vacuum insulation panel mainly adopts the steps that firstly, a barrier film is manufactured into a bag with an opening on one side, then a core material made of glass fiber is put into the bag, the whole body is put into a vacuum chamber for vacuumizing, and after the required vacuum degree is reached, the edge sealing is heated and sealed.
The prior art has the following disadvantages:
1. the vacuum pumping is difficult: in order to obtain a vacuum insulation board with a smaller heat conductivity coefficient, the inside of the barrier bag must be vacuumized to a lower vacuum degree, after the vacuum insulation board is vacuumized to a certain vacuum degree, gas comes out of the bag randomly through the free movement of gas molecules (not flows out through pressure difference), and because the barrier bag is only provided with a single-side opening, the vacuumizing conductance is small, a long time is needed for reaching the required vacuum degree, the efficiency is influenced, and the vacuum degree is not guaranteed well. The folded edge damages the structure of the separation bag to cause leakage rate; in the prior art, the edge seal is inevitably formed in the middle of the periphery of the vacuum insulation panel when the barrier bag is vacuumized, as shown in fig. 1, the vacuum insulation panel needs to be attached to the surface of a refrigerator shell or other refrigeration equipment in the use process of the vacuum insulation panel, and therefore the edge seal needs to be folded to the surface of the insulation panel to form a regular shape. Because the separation bag has certain hardness, the separation bag can form a plurality of tiny air holes in the process of folding the separation bag, so that external air enters, and the service life of the vacuum insulation plate is greatly influenced. Even when a relatively large leak rate is formed, the heat insulation plate can enter a large amount of gas, and the heat conductivity coefficient is greatly increased, so that the heat insulation plate directly fails.
2. The hemming process requires a large labor cost: because the specification of vacuum insulation panel is more, can't carry out full-automatic automation, full mechanized hem to the material under prior art, most all adopt artifical hem or man-machine complex semi-automatic hem, but this all can consume a large amount of manpowers and increase the destruction that causes vacuum insulation panel's handling process when the hem.
3. Overlong edge sealing: because the core material made of the glass fiber has higher filling power, in order to meet the bagging process, the bag needs to be made larger, the core material can be put into the bag, and the bag is inevitably subjected to vacuum-pumping compression to form a longer edge sealing. Such a manufacturing process also results in waste of barrier bag material.
Disclosure of Invention
The invention aims to solve the main technical problem of providing a vacuum insulation board which has lower vacuum degree and simpler generation process.
In order to solve the technical problem, the invention provides a vacuum insulation panel which is characterized by comprising a core material, a first barrier piece and a second barrier piece, wherein the first barrier piece and the second barrier piece are oppositely arranged on two sides of the core material in the thickness direction;
a part of the first barrier is recessed to form a groove after pretreatment; the core material is wholly or partially accommodated in the groove; the second barrier piece is in sealing fit with the part outside the groove of the first barrier piece to form a sealing edge extending along the circumferential direction of the core material.
2. A vacuum insulation panel according to claim 1, wherein: the seal edge is located on the plane where one side of the core material faces the second barrier piece.
3. A vacuum insulation panel according to claim 1, wherein: the groove is formed by stamping or plastic suction.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the vacuum heat insulation plate provided by the invention changes the conventional mode that the core material is filled in the barrier bag and then vacuumized into vacuum, and uses two separate barrier films instead, so that the vacuum heat insulation plate can be vacuumized from four directions. When the barrier film and the core material are vacuumized in the vacuum chamber, the whole upper surface of the core material is exposed in the vacuum chamber, and the formed air flow channel is large, so that the gas in the vacuum chamber can be pumped away more quickly, the gas can be pumped more cleanly, a lower vacuum degree is obtained, the heat conductivity coefficient of the heat insulation plate is lower, and the heat insulation performance is better.
2. The edge sealing is formed on one side instead of the middle of the vacuum insulation panel, the edge sealing is not influenced by the filling power of the core material, the formed edge sealing is much narrower than that in the prior art, and the edge sealing is formed on one side, so that the side with the edge sealing can be attached when the insulation panel is attached to the surface of a refrigerator shell or other refrigeration equipment, the edge folding process can be omitted, the service life of the vacuum insulation panel is greatly prolonged, the edge folding process is omitted in the manufacturing process of the vacuum insulation panel, the processing of the vacuum insulation panel is simpler and quicker, and a large amount of manufacturing cost is saved.
3. According to the vacuum insulation panel provided by the invention, the groove is formed on the first barrier piece through pretreatment, and the core material can be placed in the groove. Compared with the method of using a flat barrier film to be vacuumized and adsorbed on the surface of a core material in the prior art, the preformed groove bottom is smooth, sharp corners of the traditional vacuum insulation plate at four top corners cannot be generated, the barrier film is not easy to damage, and the durability of the vacuum insulation plate is enhanced.
4. According to the vacuum insulation panel provided by the invention, the manufacturing cost of the material of the barrier bag is very high, and the use of the material can be saved due to the smaller edge sealing, so that the manufacturing cost of the vacuum insulation panel is reduced.
5. According to the vacuum insulation panel provided by the invention, a bag making process can be omitted, the barrier material is required to be made into a bag with an opening on one side in the prior art, the step can be directly omitted under the technical condition of the invention, and the material is only required to be cut into sheets with proper size, so that the vacuum insulation panel is simpler to process, and greater benefit and efficiency are brought to enterprises.
Drawings
FIG. 1 is a side view of a prior art vacuum insulation panel;
fig. 2 is a side view of a vacuum insulation panel in a preferred embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Referring to fig. 2, a vacuum insulation panel includes a core material 1, a first barrier 11 and a second barrier 12 oppositely disposed at both sides of the core material 1 in a thickness direction;
a part of the first barrier 11 is pretreated to form a concave groove along the direction far away from the core material 1; the core material 1 is wholly or partially accommodated in the groove; and the second barrier 12 is sealed and attached to the part of the first barrier 11 except the groove to form a sealed edge extending along the circumferential direction of the core material 1.
With this arrangement, a seal is formed in the plane of second barrier 12, which is a great difference from the seal formed by the conventional process, as shown in fig. 1.
The vacuum insulation panel changes the prior mode of filling the core material 1 with the barrier bag and then vacuumizing, and changes two separate barrier films into the mode of vacuumizing, so that vacuumizing treatment can be carried out from four directions. When the barrier film and the core material 1 are vacuumized in the vacuum chamber, the whole upper surface of the core material 1 is exposed in the vacuum chamber, and the formed air flow channel is large, so that the gas in the vacuum chamber can be pumped away more quickly, the gas can be pumped out more cleanly, a lower vacuum degree is obtained, the heat conductivity coefficient of the heat insulation plate is lower, and the heat insulation performance is better.
The edge sealing is formed on one side of the core material 1 instead of the middle, when the heat insulation plate is attached to the surface of a refrigerator shell or other refrigeration equipment, the side with the edge sealing can be attached, and the process of edge folding can be omitted, so that the service life of the vacuum heat insulation plate is greatly prolonged, the process of edge folding is omitted in the manufacturing process of the vacuum heat insulation plate, the processing of the vacuum heat insulation plate is simpler and quicker, and a large amount of manufacturing cost is saved.
In the prior art, the core material 1 is placed into the barrier bag before vacuum-pumping, so that the barrier bag is large enough, and the edge sealing formed by the barrier bag is very large after vacuum-pumping, but after vacuum-pumping, the core material of the invention can be subjected to edge sealing after the first barrier film 11 and the second barrier film 12 are mutually compressed to the corresponding thickness, so that the core material is not influenced by the filling power of the core material 1, and the formed edge sealing is much narrower than that in the prior art.
In the embodiment, the grooves are formed by stamping or plastic suction, and four bottom angles of the grooves are arc angles due to pretreatment. Compared with the method of using a flat barrier film to be vacuumized and adsorbed on the surface of the core material 1 in the prior art, the preformed groove bottom is smooth, sharp corners at four top corners of the traditional vacuum insulation plate can not be generated, the barrier film is not easy to damage, and the durability of the vacuum insulation plate is enhanced.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby. Equivalent changes and modifications made according to the patent scope and the specification of the present invention should be covered by the present invention.
Claims (3)
1. A vacuum heat insulation plate is characterized by comprising a core material, a first barrier piece and a second barrier piece, wherein the first barrier piece and the second barrier piece are oppositely arranged on two sides of the core material in the thickness direction;
a part of the first barrier is recessed to form a groove after pretreatment; the core material is wholly or partially accommodated in the groove; the second barrier piece is in sealing fit with the part outside the groove of the first barrier piece to form a sealing edge extending along the circumferential direction of the core material.
2. A vacuum insulation panel according to claim 1, wherein: the seal edge is located on the plane where one side of the core material faces the second barrier piece.
3. A vacuum insulation panel according to claim 1, wherein: the groove is formed by stamping or plastic suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014097.7A CN111255980A (en) | 2020-01-07 | 2020-01-07 | Vacuum heat insulation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014097.7A CN111255980A (en) | 2020-01-07 | 2020-01-07 | Vacuum heat insulation plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111255980A true CN111255980A (en) | 2020-06-09 |
Family
ID=70950262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010014097.7A Pending CN111255980A (en) | 2020-01-07 | 2020-01-07 | Vacuum heat insulation plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111255980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683668A (en) * | 2020-12-29 | 2022-07-01 | 福建赛特新材股份有限公司 | Production method of novel vacuum heat-insulating plate and novel vacuum heat-insulating plate |
| CN117450360A (en) * | 2023-12-22 | 2024-01-26 | 福建建壹真空科技有限公司 | Vacuum four-edge sealing equipment for processing vacuum insulation panels and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859251A (en) * | 2010-04-30 | 2013-01-02 | 瓦克技术股份公司 | Evacuated sheet material for thermal insulation |
| KR20130112336A (en) * | 2012-04-03 | 2013-10-14 | 삼성전자주식회사 | Vacuum heat insulating member and manufacturing method for the same |
| CN103968191A (en) * | 2013-01-28 | 2014-08-06 | 苏州维艾普新材料有限公司 | Vacuum insulated panel for core material edge-cutting processing and preparation method for vacuum insulated panel |
| CN204254163U (en) * | 2014-09-29 | 2015-04-08 | 福建赛特新材股份有限公司 | A kind of vacuum heat-insulating plate |
| CN107869878A (en) * | 2016-09-26 | 2018-04-03 | 东芝生活电器株式会社 | Vacuum heat-insulation part and refrigerator |
| CN207179043U (en) * | 2017-08-23 | 2018-04-03 | 滁州银兴新材料科技有限公司 | One kind can integrated vacuum thermal insulation panel |
| CN212004798U (en) * | 2020-01-07 | 2020-11-24 | 福建赛特新材股份有限公司 | Vacuum heat insulation plate |
| CN115046072A (en) * | 2022-04-15 | 2022-09-13 | 福建赛特新材股份有限公司 | Barrier film for vacuum heat insulation plate, vacuum heat insulation plate and heat insulation product |
-
2020
- 2020-01-07 CN CN202010014097.7A patent/CN111255980A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102859251A (en) * | 2010-04-30 | 2013-01-02 | 瓦克技术股份公司 | Evacuated sheet material for thermal insulation |
| KR20130112336A (en) * | 2012-04-03 | 2013-10-14 | 삼성전자주식회사 | Vacuum heat insulating member and manufacturing method for the same |
| CN103968191A (en) * | 2013-01-28 | 2014-08-06 | 苏州维艾普新材料有限公司 | Vacuum insulated panel for core material edge-cutting processing and preparation method for vacuum insulated panel |
| CN204254163U (en) * | 2014-09-29 | 2015-04-08 | 福建赛特新材股份有限公司 | A kind of vacuum heat-insulating plate |
| CN107869878A (en) * | 2016-09-26 | 2018-04-03 | 东芝生活电器株式会社 | Vacuum heat-insulation part and refrigerator |
| CN207179043U (en) * | 2017-08-23 | 2018-04-03 | 滁州银兴新材料科技有限公司 | One kind can integrated vacuum thermal insulation panel |
| CN212004798U (en) * | 2020-01-07 | 2020-11-24 | 福建赛特新材股份有限公司 | Vacuum heat insulation plate |
| CN115046072A (en) * | 2022-04-15 | 2022-09-13 | 福建赛特新材股份有限公司 | Barrier film for vacuum heat insulation plate, vacuum heat insulation plate and heat insulation product |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683668A (en) * | 2020-12-29 | 2022-07-01 | 福建赛特新材股份有限公司 | Production method of novel vacuum heat-insulating plate and novel vacuum heat-insulating plate |
| CN117450360A (en) * | 2023-12-22 | 2024-01-26 | 福建建壹真空科技有限公司 | Vacuum four-edge sealing equipment for processing vacuum insulation panels and application method thereof |
| CN117450360B (en) * | 2023-12-22 | 2024-03-01 | 福建建壹真空科技有限公司 | Vacuum four-edge sealing equipment for processing vacuum insulation panels and application method thereof |
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