CN215604551U

CN215604551U - Hollow glass door of refrigerator

Info

Publication number: CN215604551U
Application number: CN202121903665.5U
Authority: CN
Inventors: 王闻天; 刘琦; 张明凯
Original assignee: Weihai Bluestar Special Glass Co Ltd
Current assignee: Weihai Bluestar Special Glass Co Ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-01-25
Anticipated expiration: 2031-08-13

Abstract

The utility model provides a hollow glass door of a refrigerator, which comprises a glass door main body component and a conductive heating component, wherein the glass door main body component comprises coated glass, white glass is arranged on one side of the coated glass, inner side heat insulation soft rubber is arranged between the coated glass and the white glass, a hollow glass cavity is arranged between the coated glass and the white glass and positioned on the inner side of the inner side heat insulation soft rubber, and inert gas is filled in the hollow glass cavity; the coated glass comprises a conductive coating layer arranged on the inner surface of the coated glass, and the inner side heat insulation soft rubber is positioned on the periphery of the inner surface of the conductive coating layer and the periphery of the inner wall surface of the white glass; the internal surface on electrically conductive coating layer is close to one side and is fixed to be equipped with electrically conductive silver thick liquid area, and the inboard edge in electrically conductive silver thick liquid area does not surpass the inboard edge of inboard thermal-insulated flexible glue, and the outside periphery of inboard thermal-insulated flexible glue is equipped with the outside and supports the flexible glue. The glass door can prevent the hollow glass from dewing and frosting, and has the advantages of good tightness, long service life, transparent glass door and beautiful appearance. The utility model can be widely applied to the refrigerated cabinet.

Description

Hollow glass door of refrigerator

Technical Field

The utility model relates to a glass door, in particular to a hollow glass door of a refrigerated cabinet.

Background

Traditional refrigeration show cupboard often adopts the glass door in order to reach its pleasing to the eye and penetrating effect, and the cavity glass door that current market freezer is commonly used mainly has three kinds, specifically as follows:

the other is that adopt double-deck ordinary glass's metal hollow strip formula cavity glass door, this kind of cavity glass door is because of the reason of the interior and the outer temperature difference of cabinet, and inevitable dewfall or frosting on the glass door causes the glass door to become fuzzy, sees article in the cabinet not clearly, influences its penetrating effect and aesthetic property, all causes certain influence to the trade company and to customer, has influenced the sales effect of trade company and customer's experience degree.

The second is that outer glass scribbles metal conductive film, adopt the intermetallic parting bead between cavity glass's the double glazing, this layer of glass both sides scribbling the conducting film have increased silver thick liquid line, silver thick liquid line connection power through the glass both sides solves the dewfall and the problem of frosting for glass heating, however, because the metal cavity strip has very strong electric conductivity, so when using, will detach the conducting film on the glass of metal cavity strip position, the silver thick liquid line will be in the inboard of metal cavity strip, can not contact with metal cavity strip, connect the power cord and will punch and pass metal cavity strip, consequently, lead to the leakproofness of this type of cavity glass door poor, can't let inert gas remain for a long time in the cavity, glass door energy-saving effect is poor, finally lead to the increase of product energy consumption.

The third process is similar to the second process, only the metal spacing bar is changed into the spacing bar made of PVC, the PVC material belongs to an insulator, the conductive film does not need to be removed from the contact part of the PVC material and the conductive film, the silver paste belt can also be positioned at the outer side of the spacing bar, and inert gas can be filled in the hollow cavity.

SUMMERY OF THE UTILITY MODEL

The utility model provides a refrigerator hollow glass door and a processing method of the refrigerator hollow glass door, aiming at the technical problems that the three common hollow glass doors are easy to dewfall or frost, the sealing property of the hollow glass door is poor, inert gas cannot be reserved in a hollow cavity for a long time, the energy-saving effect of the glass door is poor, and the energy consumption of a product is large finally, the refrigerator hollow glass door can prevent the hollow glass from dewfall and frost, has good sealing property, long service life, transparent and attractive glass door and good user experience, can effectively prevent the heat exchange and transfer inside and outside the refrigerator body, reduces the energy consumption, and saves more energy; the processing method of the hollow glass door of the refrigerated cabinet is simple and reliable, and the process stability is high.

Therefore, the technical scheme of the utility model is that the hollow glass door of the refrigerated cabinet comprises a glass door main body component and a conductive heating component, wherein the glass door main body component comprises coated glass, white glass is arranged on one side of the coated glass, inner side heat insulation soft glue is arranged between the coated glass and the white glass, a hollow glass cavity is arranged between the coated glass and the white glass and positioned on the inner side of the inner side heat insulation soft glue, and inert gas is filled in the hollow glass cavity; the coated glass comprises a conductive coating layer arranged on the inner surface of the coated glass, and the inner side heat insulation soft rubber is positioned on the periphery of the inner surface of the conductive coating layer and the periphery of the inner wall surface of the white glass; the inner surface of the conductive coating layer is fixedly provided with a conductive silver paste belt close to one side, the inner side edge of the conductive silver paste belt does not exceed the inner side edge of the inner side heat insulation soft rubber, one end of the conductive silver paste belt is fixedly provided with a power line upper welding point, the inner surface of the conductive coating layer is fixedly provided with a conductive silver paste belt close to the other side, one end of the conductive silver paste belt is fixedly provided with a power line lower welding point, the power line upper welding point and the power line lower welding point are respectively positioned at two opposite corners of the coated glass, power lines are respectively connected to the power line upper welding point and the power line lower welding point, the outer end of the power line is a power line outer end, the power line outer end is externally leaked outside the glass door main body assembly, and the conductive coating layer, the conductive silver paste belt and the power lines form a conductive heating assembly; the outer side periphery of the inner side heat insulation soft rubber is provided with an outer side support soft rubber.

Preferably, the conductive silver paste strip is located at the outer side of the inner side heat insulation soft rubber, or the conductive silver paste strip is located at the bottom of the inner side heat insulation soft rubber.

Preferably, the inner side heat insulation soft glue is made of thermoplastic glue, and the outer side support soft glue is made of silicone glue.

Preferably, the equivalent thermal conductivity coefficient of the thermoplastic adhesive is less than or equal to 0.24W/(m.k), and the resistivity is more than or equal to 10⁶-10⁷ohm·cm。

Preferably, the distance between the outer surface of the inner heat insulation soft rubber and the outer side surfaces of the coated glass and the white glass is 8-15 mm.

Preferably, the width of the conductive silver paste strip is 5mm-6 mm.

Preferably, the width of the inner side heat insulation soft glue is 5.8mm-6.8mm, and the thickness of the inner side heat insulation soft glue is 2mm-20 mm.

Preferably, the width of the inner heat insulation soft rubber is 5.8mm-6.8mm, the thickness of the inner heat insulation soft rubber is 2mm-2.5mm, the distance between the outer side surface of the inner heat insulation soft rubber and the outer side surfaces of the coated glass and the white glass is 10mm-11mm, and the width of the conductive silver paste belt is 5.5mm-5.6 mm.

Preferably, the external end of the power line is positioned at one side of the hollow glass door of the refrigerator as a rotating shaft.

Preferably, white glass is respectively arranged on two sides of the coated glass.

The utility model has the advantages that the hollow glass door of the refrigerated cabinet comprises the conductive heating component, and the external control circuit can automatically switch on and off the power according to the set temperature, so that the coated glass can be heated when being switched on, and the problems of condensation and frosting are prevented. The periphery of the conductive coating layer of the coated glass does not need to be subjected to large-area film removal, so that the heating area of the coated glass is reserved to the maximum extent, the problem that the periphery of a door body is particularly easy to condense due to exposure and cooling of the periphery of a glass door can be effectively solved, and the process is simplified in the processing process. Therefore, the hollow glass door is adopted on the fresh-keeping cabinet and the freezer, so that the glass door can be prevented from dewing and frosting, and the transparency and the attractiveness of the glass door are ensured.

The hollow glass door can achieve the effects of preventing condensation and frosting, and can save energy.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a cross-sectional view of yet another version of FIG. 2;

FIG. 5 is a cross-sectional view of FIG. 1;

FIG. 6 is a cross-sectional view of yet another version of FIG. 1;

FIG. 7 is a schematic view of one form of a conductive silver paste strip;

FIG. 8 is a schematic view of yet another form of a conductive silver paste strip;

FIG. 9 is a schematic view of yet another form of a conductive silver paste strip;

FIG. 10 is a schematic drawing with a dimensional schematic of a conductive silver paste ribbon;

FIG. 11 is a schematic view of the construction and use of the glue scraping assembly;

FIG. 12 is a schematic view of another construction and use of the glue scraping assembly;

FIG. 13 is a schematic view of another construction and use of the glue scraping assembly;

FIG. 14 is a top view of the strike plate;

FIG. 15 is yet another top view of the strike plate;

FIG. 16 is a schematic view of a glue gun;

FIG. 17 is a top view of FIG. 16;

FIG. 18 is a cross-sectional view of FIG. 16;

FIG. 19 is yet another schematic view of the glue gun;

FIG. 20 is a cross-sectional view of FIG. 19;

FIG. 21 is a schematic view of a dispensing well;

FIG. 22 is yet another schematic view of the dispensing orifice;

FIG. 23 is yet another schematic view of the glue gun;

FIG. 24 is a front view of FIG. 23;

FIG. 25 is a top view of FIG. 23;

FIG. 26 is a cross-sectional view of FIG. 23;

FIG. 27 is another schematic view of a glue gun

Fig. 28 is a schematic view of the application of the glue gun of fig. 27.

The symbols in the drawings illustrate that:

1. inner side heat insulation soft rubber; 2. the rotating shaft side of the cabinet body; 3. supporting soft rubber at the outer side; 4. a welding point on the power line; 5. a conductive silver paste tape; 6. a power line; 7. the power line is externally connected; 8. coating film glass; 9. white glass; 10. a conductive coating layer; 11. a hollow glass cavity; 12. a glass door body assembly; 13. an electrically conductive heating assembly; 14. a lower welding point of the power line; 15. a gluing and leveling component; 1501. scraping the plate; 1502. gluing guns; 150201. a glue inlet rod; 150202. a glue coating nozzle; 150203. a glue inlet channel; 150204. fixing the cone by a glue gun; 150205. a glue outlet inclined plane; 150206. conducting glue arcs; 150207. marking a glue sharp corner; 150208. a transverse glue guiding groove; 150209. gluing a main body; 150210. glue distributing holes; 1503. an anti-overflow glue side plate; 1504. a side cleaning cushion; 1505. glue gun mounting holes; 1506. a guide post; 1507. a spring; 1508. and (4) a support plate.

Detailed Description

The present invention will be further described with reference to the following examples.

Fig. 1-28 show an embodiment of a refrigerator cavity glass door and a method for manufacturing the same according to the present invention, which can be seen from the drawings, and includes a glass door body assembly 12 and a conductive heating assembly 13, the glass door body assembly 12 includes a coated glass 8, a white glass 9 is disposed on one side of the coated glass 8, an inner side heat insulation soft glue 1 is disposed between the coated glass 8 and the white glass 9, a cavity glass cavity 11 is disposed between the coated glass 8 and the white glass 9 and on the inner side of the inner side heat insulation soft glue 1, and an inert gas is filled in the cavity glass cavity 11; the coated glass 8 comprises a conductive coated layer 10 arranged on the inner surface, and the inner side heat insulation soft rubber 1 is positioned on the periphery of the inner surface of the conductive coated layer 10 and the periphery of the inner wall surface of the white glass 9; a conductive silver paste belt 5 is fixedly arranged on one side, close to the inner surface of the conductive coating layer 10, the inner side edge of the conductive silver paste belt 5 does not exceed the inner side edge of the inner side heat insulation soft rubber 1, a power line upper welding point 4 is fixedly arranged at one end of the conductive silver paste belt 5, a conductive silver paste belt 5 is fixedly arranged on the other side, close to the inner surface of the conductive coating layer 10, a power line lower welding point 14 is fixedly arranged at one end of the conductive silver paste belt 5, the power line upper welding point 4 and the power line lower welding point 14 are respectively positioned at two opposite corners of the coated glass 8, a power line 6 is respectively connected to the power line upper welding point 4 and the power line lower welding point 14, the outer end of the power line 6 is a power line outer connecting end 7, the power line outer connecting end 7 is externally leaked outside the glass door main body component 12, and the conductive coating layer 10, the conductive silver paste belt 5 and the power line 6 form a conductive heating component 13; the outer side periphery of the inner side heat insulation soft rubber 1 is provided with an outer side support soft rubber 3.

In this embodiment, electrically conductive silver thick liquid area 5 is located the outside of inboard heat-insulating flexible glue 1, as shown in fig. 3, such structure makes things convenient for welding power cord 6, and electrically conductive silver thick liquid area 5 and inboard heat-insulating flexible glue 1 contactless simultaneously lie in the outside completely and support under the cover of flexible glue 3, when electrically conductive heating element 13 circular telegram, can form even circuit density, it is more even to be heated, and the energy consumption is also lower when using the heating for a long time.

As shown in fig. 4, the conductive silver paste strip 5 can also be positioned at the bottom of the inner side heat insulation soft glue 1, and the conductive silver paste strip 5 is in complete covering contact with the inner side heat insulation soft glue 1 in such a structure, because the inner side heat insulation soft glue 1 has a high resistance value, when the conductive heating assembly 13 is electrified, most of current flows along the conductive coating layer 10, uniform current can also be formed, the technical effect of forming uniform circuit density can also be achieved, heating is very uniform, and energy consumption is lower when the conductive heating assembly is used for heating for a long time; under this scheme, welding point 4 on the power cord on the electrically conductive silver thick liquid area 5 and welding point 14 all place the outside at inboard heat-insulating flexible glue 1 under the power cord, and the on-the-spot inboard heat-insulating flexible glue 1 glueing back can weld power cord 6 again, convenient operation like this.

As shown in fig. 9, a part of the conductive silver paste strip 5 may be disposed at the bottom of the inner side heat insulation soft gel 1, and the other part is disposed in the outward region of the inner side heat insulation soft gel 1, so as to ensure the heating performance of the product.

The inner side heat insulation soft rubber 1 of the embodiment is made of thermoplastic glue and comprises TPS glue or 4SG glue, the equivalent thermal conductivity coefficient of the TPS thermoplastic glue is 0.24W/(m.k), the heat conduction can be effectively controlled, the heat conduction inside and outside the cabinet body is controlled, and the effects of heat preservation and energy conservation are achieved. Meanwhile, the resistivity of the TPS glue or 4SG glue can reach 10⁶-10⁷ohm cm, can guarantee the insulating effect between inboard thermal-insulated flexible glue 1, electrically conductive silver thick liquid area 5 and the electrically conductive coating layer 10, guarantee the unobstructed of the current channel of the electrically conductive heating element 13. The general thermoplastic adhesive needs to be selected to ensure that the equivalent thermal conductivity is less than or equal to 0.24W/(m.k), and the resistivity is more than or equal to 10⁶-10⁷ohm cm, can meet the requirements of the hollow glass door used in the fresh-keeping cabinet and the storage and display cabinet.

The material of the outer side support soft rubber 3 is silicone adhesive, and the silicone adhesive also has high resistivity and low heat conductivity coefficient, so that the smoothness of the current heating channel and the heat insulation effect can be further ensured.

In this implementation, the material of inboard thermal-insulated flexible glue 1 is the thermoplastic glue, and the material that the flexible glue 3 was supported in the outside is the silicone adhesive, and the surface that the flexible glue 3 was supported in the outside is parallel and level mutually with coated glass 8 and white glass 9's lateral surface, and such structure can guarantee that the silicone adhesive solidification back has very stable thickness to support, guarantees that the thickness size of double-deck freezer cavity glass door is stable, and the use that can be stable for a long time is indeformable.

In the technical scheme, adopt thermoplastic adhesive and silicone adhesive all to have big resistance, especially the thermoplastic adhesive adopts TPS glue, electrically conductive silver thick liquid area 5 and coated glass 8's electrically conductive coating layer 10 in close contact with, form fine electrically conductive effect, electrically conductive silver thick liquid area 5 and have good insulating effect between thermoplastic adhesive and the silicone adhesive simultaneously, in the manufacturing process, need not carry out any insulating treatment of preventing, especially compare with the spacer of current metal spacer and PVC material, the spacer of metal spacer and PVC material is in order to be insulated with electrically conductive silver thick liquid area 5, the electrically conductive coating layer 10 of the spacer bottom of metal spacer and PVC material will be removed during the preparation can guarantee electric conductivity, and the technology of this embodiment is more simple, conductive heating's reliability is higher, long-term use stability is better.

In the embodiment, the width of the conductive silver paste strip 5 is 5mm-6mm, the distance between the outer side surface of the inner heat insulation soft glue 1 and the outer side surfaces of the coated glass 8 and the white glass 9 is 8mm-15mm, the width of the inner heat insulation soft glue 1 is 5.8mm-6.8mm, and the thickness of the inner heat insulation soft glue 1 is 2mm-20mm, so that a stable support structure can be formed by the structural size, and meanwhile, the stable sealing performance of the hollow glass cavity 11 can be ensured; and because the conductive coating layer 10 at the bottom of the inner side heat insulation soft rubber 1 does not need to be removed during manufacturing, the coated glass 8 can be ensured to have the complete conductive coating layer 10, so that the uniform current density inside the conductive coating layer 10 can be ensured, the heating uniformity of the conductive coating layer 10 is further ensured, the heating effect of the conductive heating component 13 is finally ensured, and no frost or dew condensation exists inside the hollow glass cavity 11.

As an optimized size, the width of the inner side heat insulation soft rubber 1 is 5.8mm-6.8mm, the size B shown in figure 10, the thickness of the inner side heat insulation soft rubber 1 is 2mm-2.5mm, the distance between the outer side surface of the inner side heat insulation soft rubber 1 and the outer side surfaces of the coated glass 8 and the white glass 9 is 10mm-11mm, the size A shown in figure 10, and the width of the conductive silver paste belt 5 is 5.5mm-5.6mm, so that the use of a fresh-keeping cabinet and a refrigerated cabinet in most sizes can be met, the hollow glass door of the refrigerated cabinet can have attractive appearance and permeability, the stability of the structure can be ensured, the deformation is avoided, the sealing is reliable, and the service life is long; meanwhile, the thickness of the inner side heat insulation soft rubber 1 is 2mm-2.5mm, the thickness of a hollow glass cavity 11 between formed hollow glasses is kept between 2mm-2.5mm, when the inner side heat insulation soft rubber is used for a glass door of a fresh-keeping cabinet, the total thickness is small, the inner side heat insulation soft rubber is very suitable for use, the permeability is good, the heat insulation performance is good, the attractiveness of the fresh-keeping cabinet can be guaranteed, the visibility is good, the inner exhibits are clear and easy to see, the door is opened and closed due to the fact that the inner side heat insulation soft rubber is thin, the inner side heat insulation soft rubber is very easy to operate and feel, and a user likes customizing products with the size very much.

In this embodiment, welding point 14 is located two diagonal positions of coated glass 8 respectively under welding point 4 and the power cord on the power cord, the design of such diagonal structure, the electric current that can guarantee outside power supply has the passageway of symmetry when conducting through electrically conductive silver thick liquid area 5 and electrically conductive coating film layer 10, and then density when guaranteeing that the electric current enters into electrically conductive coating film layer 10 is more even, such effect of generating heat is better, the great region of resistance can not appear in the electric current, holistic current consumption is little, the energy consumption is little when guaranteeing long-term the use.

The inert gas of this embodiment is the commonly used argon gas, can also adopt other inert gases, and inert gases such as argon gas are filled into hollow glass cavity 11, can further reduce heat conduction coefficient, further guarantee the conduction of the heat inside and outside the cabinet body, use for a long time and play energy-conserving effect.

The power line outer end 7 is positioned on one side of the hollow glass door of the refrigerator as a rotating shaft, so that the refrigerator can be conveniently installed and integrated.

As another form, the white glass 9 is respectively arranged on two sides of the coated glass 8 to form a double-layer glass door, or a multi-layer glass door can be formed according to special requirements, another white glass 9 is added on the other side of the coated glass 8, a hollow glass cavity 11 is also formed inside the coated glass, and the sizing process and the structure between the coated glass 8 and the white glass 9 are the same, so that the double-layer hollow glass can be conveniently manufactured, or the multi-layer hollow glass can be manufactured according to a similar process method.

The manufacturing method of the hollow glass door of the refrigerated cabinet comprises the following steps:

(1) cutting the coated glass 8 and the white glass 9 according to the required size;

(2) performing edge grinding treatment on the cut coated glass 8 and the cut white glass 9;

(3) tempering the coated glass 8 and the white glass 9 after edging;

(4) respectively coating conductive silver paste belts 5 at the upper and lower positions of the outer surface of the conductive coating layer 10 of the coated glass 8;

(5) cleaning and drying the coated glass 8 and the white glass 9, and coating inner side heat insulation soft rubber 1 with a certain thickness on the periphery of the outer side of the outer surface of the conductive coating layer 10 of the coated glass 8;

(6) laminating the coated glass 8 and the white glass 9, wherein the inner side heat insulation soft rubber 1 is in seamless connection with the coated glass 8 and the white glass 9, and a hollow glass cavity 11 is formed between the coated glass 8 and the white glass 9; filling inert gas into the hollow glass cavity 11 while pressing;

(7) the power lines 6 are respectively welded on the power line upper welding point 4 and the power line lower welding point 14, and the power line external connection ends 7 of the upper power line 6 and the lower power line 6 are externally leaked at the outer sides of the coated glass 8 and the white glass 9;

(8) filling and injecting outer side supporting soft rubber 3 into a hollow glass cavity 11 on the outer side of the inner side heat insulation soft rubber 1 to further combine the coated glass 8 and the white glass 9, wherein the outer side supporting soft rubber 3 completely covers the conductive silver paste strip 5 and the power line 6;

(9) and curing the coated glass and the white glass which are filled with the outer side support soft rubber in a filling and injecting manner to form the hollow glass.

In this embodiment, in the process of the step (6), two sides of the coated glass 8 may be respectively pressed with the white glass 9, and a two-layer hollow glass cavity 11 is formed between the coated glass 8 and the white glass 9, so as to form a two-layer mechanism.

The time interval between the step (6) and the step (8) is less than 1 minute, and tests prove that effective combination can be formed between the inner side heat insulation soft glue 1 and the outer side support soft glue 3, and the product performance and the size are stable.

In this embodiment, when filling and injecting the outer side supporting soft rubber 3, the gluing and strickling assembly 15 is adopted, and as shown in fig. 11 to 26, a process diagram when filling and injecting the outer side supporting soft rubber 3 is shown.

FIGS. 16-18 illustrate an embodiment of the adhesive screed assembly 15, wherein the adhesive screed assembly 15 is seen to include a screed plate 1501 and an applicator gun 1502, the screed plate 1501 having gun mounting holes 1505; the glue gun 1502 comprises a glue inlet rod 150201, a glue gun fixing cone 150204 is arranged at the front end of the glue inlet rod 150201, a glue outlet inclined plane 150205 is arranged at the front end of the glue gun fixing cone 150204, a glue coating nozzle 150202 is arranged on the glue outlet inclined plane 150205, a glue inlet channel 150203 is arranged inside the glue inlet rod 150201, a glue distributing hole 150210 is formed in one end, close to the glue coating nozzle 150202, of the glue inlet channel 150203, the glue distributing hole 150210 and the glue coating nozzle 150202 are communicated, and the inner diameter of the glue inlet channel 150203 is larger than that of the glue distributing hole 150210; a portion of the glue gun mounting cone 150204 may be inserted into the glue gun mounting hole 1505 to form a sealed connection. When the glue gun fixing cone 150204 is obliquely inserted into the glue gun mounting hole 1505 of the scraping plate 1501, and the bottom surface of the scraping plate 1501 is contacted with the outer side surfaces of the coated glass 8 and the white glass 9. In this implementation, because the internal diameter of advancing gluey passageway 150203 is greater than the internal diameter of branch gluey hole 150210, when advancing gluey like this, advance gluey passageway 150203 and can store a lot of glue in large-traffic, can satisfy a plurality of branch gluey hole 150210's play gluey needs, guarantee the stability of gluey and gummed technology, can not appear leaking gluey or because the condition that the air that the volume of gluing leads to inadequately gets into, gluey steady quality.

Fig. 19-22 show another embodiment of the glue spreading and leveling assembly 15, which is different from fig. 16-18 in that the glue nozzle 150202 is provided with a plurality of glue guiding arcs 150206, a plurality of glue dividing sharp corners 150207 are provided between adjacent glue guiding arcs 150206, and a plurality of glue guiding arcs 150206 form the appearance of a plurality of arc segments on the surface when glue is discharged, and when the glue is leveled by the bottom surface of the leveling plate 1501, the outer surface of the glue is very easy and fast to be leveled because the outer surface of the glue is a plurality of arc segments, and the glue spreading and leveling effect is very good, and the leveling efficiency is very high.

Fig. 14 and 15 are schematic diagrams of two shapes of the glue gun mounting hole 1505, different shapes can meet the requirement that the shape of the glue gun mounting hole 1505 is matched with the glue gun fixing cone 150204, the shape of the glue gun mounting hole 1505 is an oval or a multi-arc hole, and the glue gun mounting hole 1505 can be designed into other shapes according to different shapes of the glue gun fixing cone 150204. As can be seen in fig. 14 and 15, the top view of the screed plate can be respectively adapted to two glue gun fixing cones 150204 with different shapes, wherein the elliptical glue gun mounting hole 1505 of fig. 14 can meet the shape of the circular glue gun fixing cone 150204, so that when the glue gun fixing cone 150204 is inserted into the glue gun mounting hole 1505, a sealing form with a certain acute angle is formed, because the acute angle exists, glue can be smoothly discharged, the gluing process can be smoothly completed, the acute angle is generally selected to be between 30 ° and 60 °, the movement direction of the gluing nozzle 150202 is the direction along the acute angle, and the gluing process and the screeding process can be more smooth; the multiple radius glue gun mounting hole 1505 in fig. 15 is again adaptable to the multiple radius appearance of the glue gun mounting cone 150204.

Also visible in fig. 11-13 are various forms of screed 1501, the screed 1501 of fig. 11 being in the form of a flat plate, suitable for hand sizing for small size glass making; the screed plate 1501 in fig. 12 can satisfy mechanical automatic glue application, and it can be seen that both sides of the screed plate 1501 are respectively provided with an anti-overflow glue side plate 1503, the inner side of the anti-overflow glue side plate 1503 is provided with a side cleaning cushion 1504, and the setting of the side cleaning cushion 1504 can satisfy the requirement of further cleaning up slight glue leakage of both sides during mechanical glue application, and directly enter into the next process to complete automatic production. The structural style in fig. 13 is further optimized, and it can be seen in the figure that a support plate 1508 is fixedly arranged on one side of a scraping plate 1501, one of the anti-overflow glue side plates 1503 is located on the inner side of the support plate 1508, a guide post 1506 is fixedly arranged on the outer side of the anti-overflow glue side plate 1503, a spring 1507 is sleeved on the outer circle of the guide post 1506, the anti-overflow glue side plate 1503 and the scraping plate 1501 form sliding connection, the manufacturing of glass doors with different thicknesses can be met, the scraping plate is stronger in universality, the processing and gluing of glass with various specifications can be quickly met, and the production efficiency of the whole production line is improved.

Fig. 23-26 show another embodiment of the glue-spreading and scraping assembly 15, wherein the glue-spreading and scraping assembly 15 includes a glue-spreading body 150209, a glue-spreading gun 1502 is disposed at one end of the glue-spreading body 150209, a transverse glue-guiding groove 150208 is disposed on one surface of the glue-spreading body 150209, and anti-overflow side plates 1503 are fixedly disposed at two sides of the transverse glue-guiding groove 150208; glue gun 1502 is internally provided with a glue inlet channel 150203, one side of glue inlet channel 150203 close to glue coating main body 150209 is provided with a plurality of glue distributing holes 150210, and one side of the inner diameter of glue inlet channel 150203 close to glue distributing holes 150210 is in a stepped reducing state in sequence. Different from other embodiments, the technical solution of this embodiment is to integrate the glue overflow preventing side plate 1503 and the glue applying main body 150209 into an integrated structure, which is easier to meet the automatic production of a large-batch production line, and can integrate the glue applying and leveling assembly 15 with an automatic glue applying device to complete the full-automatic glue applying production. Because the transverse glue guide groove 150208 exists, the glue output amount can be large, when glue is applied, glue materials can rapidly flow out along the transverse glue guide groove 150208 and rapidly enter between two layers of glass to complete industrial automatic filling, as can be seen in fig. 26, a plurality of glue dividing holes 150210 can be arranged according to the width of the transverse glue guide groove 150208, the glue dividing holes 150210 at the outermost side and the glue dividing holes 150210 at the inner side are distributed in a fan shape and are respectively communicated with the glue inlet channel 150203, the inner diameter of the glue inlet channel 150203 is in a step-reducing state close to one side of the glue dividing holes 150210, the synchronism when glue is applied can be met, because the inner diameter of the connection part of the glue dividing holes 150210 at the outermost side and the glue inlet channel 150203 is larger than that of the connection part of the glue dividing holes 150210 at the inner side and the glue inlet channel 150203, the glue output speed of the glue dividing holes 150210 at the outermost side can be rapidly ensured, the stability of the glue application process is ensured, thereby the glue application quality is ensured, the glue distributing holes 150210 distributed along the fan shape on both sides of the glue inlet channel 150203 are arranged symmetrically, so that the glue outlet amount on both sides is uniform and the process quality is stable.

In order to meet the application of the double-layer glass with a thicker thickness in the embodiment of fig. 27, it can be seen that two transverse glue guiding grooves 150208 are provided, and the two transverse glue guiding grooves 150208 are isolated from each other, so that the two isolated transverse glue guiding grooves 150208 can simultaneously and respectively fill two gaps for applying glue, and the glue applying gap is not filled with one glue, thereby greatly providing the application process of the large-thickness multilayer hollow glass.

The embodiment of the gluing and strickling assembly 15 of fig. 23-28 can be used for automatically gluing thicker-thickness hollow glass, and fig. 27 is particularly suitable for gluing large-thickness multilayer hollow glass.

FIG. 28 is a schematic diagram of the application of the embodiment of FIG. 27, in which it can be seen that two separated transversal glue guiding grooves 150208 can be filled with two glue applying gaps simultaneously, so as to satisfy the automatic glue applying of the hollow glass with thicker thickness and double layer, the glue applying of the two filled gaps is symmetrical and stable, and the stability of the automatic production process and the quality of the product can be ensured, in this embodiment, the inner diameter of the glue inlet channel 150203 is 20mm + -1 mm, the inner diameter of the glue inlet channel 150203 connected with the glue distributing hole 150210 of the outermost sector is 16mm + -1 mm, the inner diameter of the glue inlet channel 150203 connected with the glue distributing hole 150210 of the innermost sector is 12mm + -1 mm, the inner diameter of the glue distributing hole 150210 of the outermost sector and the inner diameter of the glue distributing hole of the innermost sector are 10mm + -1 mm, such a size structure can basically satisfy the glue applying process requirement of the most of the common double layer hollow glass, the universality is stronger.

When the hollow glass of this embodiment is made, generally take the width in electrically conductive silver thick liquid area 5 to be 5mm-6mm, can satisfy the needs that the electric current passes through, also can save the silver thick liquid, generally select electrically conductive silver thick liquid area 5 to scribble thick liquid at two opposite sides of width direction during actual manufacture, width direction's length is shorter, can further introduce the use amount of silver thick liquid, reduce cost can enough guarantee the needs that the electric current flows simultaneously, can guarantee the needs of heating again.

Because including conductive heating element 13, can carry out automatic circular telegram and outage according to the temperature of setting for through outside control circuit, just can realize coated glass 8's heating when circular telegram, prevent the problem of dewing and frosting. As the periphery of the conductive coating layer 10 of the coated glass 8 does not need to be subjected to large-area film removal, the heating area of the coated glass 8 is reserved to the maximum extent, the problem that the periphery of a glass door is particularly easy to condense due to dew cooling can be effectively solved, and the process is simplified in the processing process. Therefore, the hollow glass door is adopted on the fresh-keeping cabinet and the freezer, so that the glass door can be prevented from dewing and frosting, and the transparency and the attractiveness of the glass door are ensured.

The glass adopted by the embodiment is toughened, and because the toughened glass belongs to safety glass, the glass is not easy to break and has good safety, and non-toughened glass can be used.

Fully coating and injecting silicone adhesive in a hollow glass cavity area outside the TPS adhesive, realizing the complete combination of two layers of glass by utilizing the structural property of the silicone adhesive, and keeping the integral nominal thickness of the hollow glass for a long time by utilizing the effective support property of the silicone adhesive; two conductive leads are led out from the upper corner of the edge of the glass door opening rotating shaft in actual use and are directly connected with a power line of the cabinet body when the cabinet body is installed.

According to the practical use of the opening rotating shaft, a conductive lead is welded at one end, close to the rotating shaft, of the lower silver paste belt, a conductive lead is also welded at the diagonal end of the welding lead of the upper silver paste belt and the lower silver paste belt, the length of the lead is based on the length of 50mm which can extend the outer side of the TPS glue to reach the upper corner of the rotating shaft, the additional 50mm is beneficial to being connected with a power supply of a cabinet body, and the length of the additional 50mm can be lengthened according to the requirements of a user; inert gas is filled into the hollow glass cavity 11 so as to reduce the heat transfer coefficient of the gas in the hollow glass cavity; after the TPS glue is pressed, seamless butt joint is realized, the air tightness is very good, and the effective time of inert gas can be kept for more than 50 years.

In the implementation, TPS or 4SG thermoplastic adhesive is coated on the periphery of one layer of glass according to the required thickness, the coating position of the TPS adhesive is based on that the inner side of the TPS adhesive is not exposed with a silver paste belt, and the silver paste belt can be leaked to the outer side of the TPS adhesive, so that the adhesive resistance value is very large, the conductive performance of the silver prize belt and the conductive film is not influenced completely, the conductive film does not need to be removed in the contact area of the TPS adhesive and the conductive film, and the silver paste belt can be in contact with the TPS adhesive completely; one of them layer glass adopts the high-transparent coated glass that the surface scribbled can electrically conduct LOW radiation rete, and this kind of glass chooses for use the online LOW radiation LOW _ E coated glass who adopts to purchase very easily in the market, and the coated film layer itself has the function of protecting against radiation, can effectively reduce thermal radiation's transmission, belongs to the metallic film, has good electric conductivity, and the coated film layer is scribbled when former piece glass produces and is plated, and the coated film layer is good with the glass body associativity, can not oxidize.

One layer of the hollow glass adopts high-transmittance coated glass coated with a conductive low-radiation film layer, conductive silver paste lines are coated on two sides of a coated surface, TPS glue or 4SG glue is used for separating two layers of glass, the resistance value of the TPS glue is very large, current can be automatically transmitted through the silver paste lines and the conductive low-radiation film layer without removing the conductive film layer of a contact surface, inert gas is filled into the TPS glue, the two layers of glass are combined together, a connecting lead of the silver paste lines is welded, then silicone glue is injected into a cavity from the outer side of the TPS glue to the edge of the glass, the welded lead is located between the TPS glue and the silicone glue, a collection point is located at the upper corner of the rotating shaft edge of the glass door, and therefore the energy-saving glass door capable of preventing condensation and frosting is formed.

The hollow glass door of the refrigerator only describes a single-cavity hollow glass door formed by two layers of glass, and can also form a multi-cavity hollow glass door by multiple layers of glass.

According to the technical scheme, the hollow glass door of the refrigerator comprises the conductive heating assembly 13, so that the power can be automatically switched on and off according to the set temperature through an external control circuit, the coated glass 8 can be heated when the power is switched on, and the problems of condensation and frosting are prevented. As the periphery of the conductive coating layer 10 of the coated glass 8 does not need to be subjected to large-area film removal, the heating area of the coated glass 8 is reserved to the maximum extent, the problem that the periphery of a glass door is particularly easy to condense due to dew cooling can be effectively solved, and the process is simplified in the processing process. Therefore, the hollow glass door is adopted on the fresh-keeping cabinet and the freezer, so that the glass door can be prevented from dewing and frosting, and the transparency and the attractiveness of the glass door are ensured.

However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a freezer cavity glass door which characterized by: the glass door comprises a glass door main body assembly and a conductive heating assembly, wherein the glass door main body assembly comprises coated glass, white glass is arranged on one side of the coated glass, inner side heat insulation soft glue is arranged between the coated glass and the white glass, a hollow glass cavity is arranged between the coated glass and the white glass and positioned on the inner side of the inner side heat insulation soft glue, and inert gas is filled in the hollow glass cavity; the coated glass comprises a conductive coating layer arranged on the inner surface of the coated glass, and the inner side heat insulation soft rubber is positioned on the periphery of the inner surface of the conductive coating layer and the periphery of the inner wall surface of the white glass; the inner surface of the conductive coating layer is fixedly provided with a conductive silver paste belt close to one side, the inner side edge of the conductive silver paste belt does not exceed the inner side edge of the inner side heat insulation soft rubber, one end of the conductive silver paste belt is fixedly provided with a power line upper welding point, the inner surface of the conductive coating layer is fixedly provided with a conductive silver paste belt close to the other side, one end of the conductive silver paste belt is fixedly provided with a power line lower welding point, the power line upper welding point and the power line lower welding point are respectively positioned at two opposite corners of the coated glass, power lines are respectively connected and arranged on the power line upper welding point and the power line lower welding point, the outer end of each power line is a power line outer connecting end, the power line outer connecting end is externally leaked outside the glass door main body assembly, and the conductive coating layer, the conductive silver paste belt and the power lines form a conductive heating assembly; and the outer side periphery of the inner side heat insulation soft rubber is provided with outer side support soft rubber.

2. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the conductive silver paste belt is located on the outer side of the inner side heat insulation soft rubber, or the conductive silver paste belt is located at the bottom of the inner side heat insulation soft rubber.

3. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the inner side heat insulation soft glue is made of thermoplastic glue, and the outer side support soft glue is made of silicone glue.

4. A refrigerated cabinet insulated glass door as claimed in claim 3 wherein: the equivalent thermal conductivity coefficient of the thermoplastic adhesive is less than or equal to 0.24W/(m.k), and the resistivity is more than or equal to 10⁶-10⁷ohm·cm。

5. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the distance between the outer side surface of the inner side heat insulation soft glue and the outer side surfaces of the coated glass and the white glass is 8-15 mm.

6. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the width of the conductive silver paste belt is 5mm-6 mm.

7. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the width of the inner side heat insulation soft glue is 5.8mm-6.8mm, and the thickness of the inner side heat insulation soft glue is 2mm-20 mm.

8. A refrigerated cabinet insulated glass door as claimed in claim 1 wherein: the width of the inner side heat insulation soft rubber is 5.8mm-6.8mm, the thickness of the inner side heat insulation soft rubber is 2mm-2.5mm, the distance between the outer side surface of the inner side heat insulation soft rubber and the outer side surfaces of the coated glass and the white glass is 10mm-11mm, and the width of the conductive silver paste belt is 5.5mm-5.6 mm.

9. A refrigerated cabinet insulated glass door as claimed in any one of claims 1 to 8 wherein: the outer end of the power line is positioned on one side of the hollow glass door of the refrigerated cabinet as a rotating shaft.

10. A refrigerated cabinet insulated glass door as claimed in any one of claims 1 to 8 wherein: white glass is respectively arranged on two sides of the coated glass.