CN109968580A - Refrigeration equipment and production method thereof - Google Patents

Abstract

The present invention discloses a kind of refrigeration equipment and its production method, the refrigeration equipment includes cabinet, and foam chamber is formed between the shell and liner of the cabinet, and the cabinet offers sprue, the cabinet further include: the first vacuum heat-insulating plate is attached on the inner wall of the side plate of the shell；First flow guide bar is arranged on the first vacuum heat-insulating plate towards the one side of the liner；The production method of the refrigeration equipment includes: to inject foamed material into the foam chamber by the sprue, so that the part foamed material is flowed along first flow guide bar.The foamed material of cabinet of the present invention is evenly distributed, and conducive to the foaming layer for forming even density, complete machine power consumption is reduced, and improves the service performance of refrigeration equipment.

Description

Refrigeration equipment and production method thereof

technical field

The invention relates to the technical field of household electrical appliances, in particular to a refrigeration device and a production method thereof.

Background technique

With the continuous improvement of living standards, refrigeration equipment, such as refrigerators, have been more and more widely used in consumers' daily lives, and consumers' requirements for the performance of refrigerators are also increasing. At present, in order to improve the thermal insulation effect of the refrigerator, a vacuum insulation panel (VIP board) is added between the outer shell and the inner tank of the refrigerator. However, due to the installation of the vacuum insulation panel, the foaming material is injected from the injection port at the bottom of the refrigerator. When the vacuum insulation panel is used, part of the foam material flowing through the vacuum insulation panel is often unevenly distributed, resulting in uneven density of the foam layer, resulting in large fluctuations in the power consumption of the whole machine, affecting the performance of the refrigerator.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to propose a refrigeration equipment and a production method thereof, aiming at solving the problem of uneven distribution of the foaming material in the box body of the refrigeration equipment in the prior art.

In order to achieve the above purpose, the present invention proposes a production method of a refrigeration device, the refrigeration device includes a box body, a foaming cavity is formed between the outer shell and the inner tank of the box body, and the box body is provided with a material injection port, The box also includes:

a first vacuum insulation panel, attached to the inner wall of the side panel of the casing;

the first guide strip is arranged on the side of the first vacuum insulation board facing the inner tank;

The production method of the refrigeration equipment includes:

The foaming material is injected into the foaming cavity through the injection port, so that part of the foaming material flows along the first guide strip.

Preferably, the extending direction of the first guide strip is consistent with the material injection direction.

Preferably, the number of the first guide strips is two, and the two first guide strips are arranged at intervals along a direction perpendicular to the material injection direction.

Preferably, one of the first guide bars is arranged close to the opening of the box body, and the other first guide bar is arranged away from the opening of the box body.

Preferably, the first guide strip is a porous, flexible material.

Preferably, the outer surface of the first vacuum insulation panel is covered with polyethylene film.

Preferably, the box body further includes:

The second vacuum insulation panel is attached to the inner wall of the back panel of the casing, and a step is formed between the second vacuum insulation panel and the back panel;

a diversion slope, arranged on the step at the injection port;

The step of injecting foaming material into the foaming cavity through the injection port includes:

At the injection port, the foaming material is injected into the foaming cavity from the guiding slope.

Preferably, the guide slope is a second guide bar whose two ends are respectively connected to the second vacuum insulation panel and the back panel.

Preferably, the second guide strip includes:

the first connecting section is attached to the second vacuum insulation panel;

a second connecting segment attached to the backplane;

The flow guiding section is connected between the first connecting section and the second connecting section, and the flow guiding section is arranged obliquely.

The present invention also provides a refrigeration device produced according to the above-mentioned production method of the refrigeration device.

In the technical solution of the present invention, when the box body of the refrigeration equipment is being injected, the injection gun injects the foam material into the foam chamber from the injection port at the bottom of the box body, because the first vacuum insulation board is attached to the side plate of the outer shell On the inner wall of the inner wall, part of the foaming material will flow on the surface of the first vacuum insulation panel facing the inner tank, and the setting of the first guide strip plays a role in guiding the flow, so that the part of the foaming material can flow along the first guide. The flow strips flow and the foaming material is evenly distributed, which is conducive to the formation of a foamed layer with uniform density, the power consumption of the whole machine is reduced, and the performance of the refrigeration equipment is improved.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 is an assembly schematic diagram of a box of a refrigeration equipment according to an embodiment of the present invention;

FIG. 2 is an assembly schematic diagram of omitting the inner tank in the box body of the refrigeration equipment according to an embodiment of the present invention;

Fig. 3 is the enlarged schematic diagram of A area in Fig. 2;

FIG. 4 is an exploded schematic view of a box body of a refrigeration device without an inner tank according to an embodiment of the present invention.

Description of reference numbers:

label name label name 100 box 31b rear deflector 1 shell 4 Second Vacuum Insulation Panel 11 side panel 41 second guide strip 12 backplane 411 first link 2 inner bladder 412 second link 3 first vacuum insulation panel 413 Diversion section 31 first guide strip 10 Foaming cavity 31a front spoiler 20 exposure

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

The descriptions of the orientations such as "up", "down", "left", "right", "front", "rear" in the present invention are based on the orientation shown in FIG. The relative positional relationship between the components under the shown posture, if the specific posture changes, the directional indication also changes accordingly.

The present invention provides a production method of refrigeration equipment.

As shown in FIGS. 1 to 4 , in this embodiment, the refrigerating device includes a box body 100 , and the refrigerating device may be a refrigerator or a freezer. The refrigerating device in this embodiment is described by taking a refrigerator as an example. Specifically, one end of the box body 100 is provided with an opening 20. The box body 100 includes an outer shell 1 and an inner container 2. A foaming cavity 10 is formed between the outer shell 1 and the inner container 2. The injection port (not shown in the figure) for injecting the foaming material into the cavity 10 enables the foaming material to form a foaming layer in the foaming cavity 10 (not shown in the figure). The box body 100 further includes a first vacuum insulation panel 3 and a first guide strip 31, wherein the first vacuum insulation panel 3 is attached to the inner wall of the side plate 11 of the casing 1, and the first guide strip 31 is arranged on the first A surface of the vacuum insulation panel 3 facing the inner tank 2 .

The production method of the refrigeration equipment includes: injecting foaming material into the foaming cavity 10 through a material injection port, so that part of the foaming material flows along the first guide strip 31 .

Specifically, the material injection port of the box body 100 in this embodiment is opened at the bottom of the box body 100, and the material is injected from the bottom of the refrigerator to the top of the box body 100. The height direction of the box body 100 is the up-down direction as shown in FIG. 4 . The bottom of the box body 100 is located below the top of the box body 100 , and the first guide bar 31 extends along the up-down direction as shown in FIG. 4 . During material injection, the box body 100 is laid flat, and the foam material injected from the injection port can flow from the bottom of the box body 100 to the top of the box body 100 .

When the box body 100 of the refrigeration equipment in this embodiment is injected, the injection gun injects the foam material into the foam chamber 10 from the injection port at the bottom of the box body 100. Since the first vacuum insulation board 3 is attached to the side plate of the casing On the inner wall of 11, part of the foaming material will flow on the surface of the first vacuum insulation panel 3 facing the inner tank 2, and the arrangement of the first guide strip 31 plays a role in guiding the flow, so that this part of the foaming material can flow along the surface of the inner tank 2. Flowing along the first guide strip 31, the foaming material is evenly distributed, which is conducive to forming a foaming layer with a uniform density, the power consumption of the whole machine is reduced, and the use performance of the refrigeration equipment is improved.

Further, the extending direction of the first guide strip 31 is consistent with the injection direction. The injection direction is the up-down direction shown in FIG. 4 , the first direction is the up-down direction shown in FIG. 4 , and the extension direction of the first guide strip 31 is consistent with the injection direction, so that the foaming material injected from the injection port is It can flow smoothly along the first guide bar 31 .

In this embodiment, the number of the first guide bars 31 is two, and the two first guide bars 31 are arranged at intervals along the direction perpendicular to the direction of the main material. Specifically, the two first guide bars 31 in this embodiment are arranged at intervals along the second direction, and the second direction is perpendicular to the first direction. Specifically, the second direction in this embodiment is the front-rear direction shown in FIG. 4 , The two first guide bars 31 are arranged at intervals along the front-rear direction. The arrangement of the two diversion strips expands the diversion range and further facilitates the formation of a foamed layer with uniform density.

Further, one of the first guide bars 31 is arranged close to the opening 20 of the box body 100 , and the other first guide bar 31 is arranged away from the opening 20 of the box body 100 , and the structure design is reasonable. In this embodiment, a first guide bar 31 disposed near the opening 20 is a front guide bar 31a, and another first guide bar 31 disposed far from the opening 20 is a rear guide bar 31b. Preferably, the first guide strip 31 in this embodiment is a porous, flexible material. The first guide strip 31 in this embodiment can be made of sponges in the prior art. The foaming material injected from the injection port into the foaming cavity 10 first passes through the rear guide strip 31b, and then passes through the front guide strip 31a. When passing through the rear guide strip 31b, the foaming liquid of the foaming material has a small tumbling fluctuation. The rear guide strip 31b mainly plays a guiding role, and before passing through the front guide strip 31a, bubbles will appear in the bubble liquid due to the large tumbling fluctuation, and the front guide strip 31a can not only buffer the tumbling fluctuation of the bubble liquid, but also can absorb the bubble liquid. It reduces the problem of poor forming of the foam layer at the opening 20 due to poor exhaust, improves the surface bubble state of the foam layer, and optimizes the absolute thickness of the foam layer, thereby reducing the heat leakage of the box 100. Reduce the power consumption of the whole machine.

Further, the outer surface of the first vacuum insulation panel 3 is covered with a polyethylene (PE) film (not marked). Specifically, since the first vacuum insulation panel 3 is attached to the inner wall of the side panel 11, the PE film can cover the entire surface of the first vacuum insulation panel 3 except the surface that is attached to the inner wall of the side panel 11, that is, The PE film covers all surfaces of the first vacuum insulation panel 3 in contact with the foamed material. The corona value on the surface of the PE film is less than 34dyn/cm, which can reduce the flow resistance of the foam liquid, reduce the amount of bubbles generated by the tumbling of the foam liquid, further improve the surface bubble state of the foam layer, and optimize the absolute thickness of the foam layer.

In this embodiment, the number of the side plates 11 is two, the two side plates 11 are arranged opposite to each other, the number of the first vacuum insulation panels 3 is two, and the two first vacuum insulation panels 3 are respectively attached to the two side plates in a one-to-one correspondence. on the inner wall of each side plate 11. Further, the housing 1 further includes a back panel 12 disposed away from the opening 20, the side panel 11 is connected to the back panel 12, and the box 100 further includes a second vacuum insulation panel 4 and a flow guide slope, wherein the second vacuum insulation panel 4 is attached to the back panel 12. Attached to the inner wall of the back plate 12, a step is formed between the second vacuum insulation panel 4 and the back plate 12; the guide slope is provided on the step at the injection port. The step of injecting the foaming material into the foaming cavity 10 through the material injection port includes: at the material injection port, injecting the foaming material into the foaming cavity 10 from a flow guide slope.

As shown in FIGS. 1 to 4 , specifically, the refrigerator shell 1 has two side panels 11 and one back panel 12 , the two side panels 11 are respectively connected to the left and right sides of the back panel 12 , and the A first vacuum insulation panel 3 is attached to the inner wall, and a second vacuum insulation panel 4 is attached to the inner wall of the back panel 12, which is beneficial to reduce the heat leakage of the box 100 in multiple directions and reduce the power consumption of the whole machine.

In this embodiment, since the material injection port of the box body 100 is opened at the bottom of the box body 100, the flow guide slope is provided on the step at the material injection port, that is, the flow guide slope is specifically set on the second vacuum insulation panel 4 close to the The step between the bottom edge of the injection port and the bottom edge of the back plate 12 close to the injection port. In order to prevent the gun head from hitting the edge of the second vacuum insulation panel 4 when the injection gun is pouring, causing scattering and the accumulation of foam materials at the steps, the density of the foam layer at the bottom of the box body 100 is greater than that of the foam layer at the bottom of the box body 100. For the density of the layer, in this embodiment, the foaming material is injected into the foaming cavity 10 from the diversion slope at the injection port. The diversion slope can avoid interference with the gun head of the injection gun, and play a good role in It can improve the distribution uniformity of the foaming material, reduce the density difference at different positions of the foaming layer, improve the thermal conductivity of the foaming layer, reduce the heat leakage of the box 100, and reduce the power consumption of the whole machine.

As shown in FIG. 3 , the guide slope in this embodiment is a second guide bar 41 whose two ends are respectively connected to the second vacuum insulation panel 4 and the back panel 12 . Specifically, the second guide bar 41 includes a first connection section 411, a second connection section 412 and a flow guide section 413. The flow guide section 413 is connected between the first connection section 411 and the second connection section 412. The flow guide section 413 is arranged at an inclination to facilitate flow guiding. The first connecting section 411 is attached to the bottom edge of the second vacuum insulation panel 4, and the second connecting section 412 is attached to the bottom edge of the back plate 12, so as to connect the second guiding strip 41 It is stably fixed on the second vacuum insulation panel 4 and the back panel 12 . It should be noted that, in other embodiments, the diversion slope may also be a wedge-shaped block or other structures that can play a role in diversion, and the shape of the diversion slope is not limited in the present invention.

The first vacuum insulation panel 3 and the second vacuum insulation panel 4 in this embodiment can adopt the existing technology, for example, the first vacuum insulation panel 3 and the second vacuum insulation panel 4 Glass wool is made into a core material, and a laminated film of aluminum foil and synthetic resin is wrapped around the core material and vacuumized. The first vacuum insulation board 3 and the second vacuum insulation board 4 can play a role of heat insulation, reduce the heat leakage of the box body 100, and reduce the power consumption of the whole machine.

When the box 100 of the refrigeration equipment in this embodiment is pre-assembled, the first vacuum insulation panel 3 is attached to the back panel 12 , and the two second vacuum insulation panels 4 are attached to the inner walls of the two side panels 11 respectively. on the bottom edge of the second vacuum insulation panel 4 and the step formed by the lower edge of the back plate 12 and paste a second guide strip 41, the second guide strip 41 can be made of polypropylene (PP) in the prior art The length of the first connecting section 411, the second connecting section 412 and the diversion section 413 can be set according to the actual situation. In this embodiment, the length of the first connecting section 411 can be 30mm-40mm of the diversion section 413. The length may be 60mm-70mm, and the length of the second connecting section 412 may be 40mm. Then, the first vacuum insulation panel 3 of each side panel 11 is covered with a PE film, and the PE film covers all the surfaces of the first vacuum insulation panel 3 in contact with the foam material, and the PE film is applied evenly, free of air bubbles and folding, etc. bad condition. Then, two first guide bars 31 are pasted on each first vacuum insulation panel 3 covered with PE film. The specifications of the first guide bars 31 can be set according to the actual situation. In this embodiment, the first guide bars 31 The length can be 1000mm-1200mm, the width can be 30mm-40mm, and the thickness can be 10mm-20mm. The pre-installed structures of the remaining boxes 100 remain unchanged. The pre-installed box body 100 is sent into the mold for foaming. After demoulding, the surface of the foam layer close to the opening 20 is smooth and free of pits, and the side plate 11 and the back plate 12 have no problems such as bulging.

Compared with the refrigeration equipment in the prior art, in the refrigeration equipment of this embodiment, the first vacuum insulation panel 3 is attached to the inner wall of each side plate 11 of the box body 100 , and the second vacuum insulation panel is attached to the inner wall of the back plate 12 . 4, and through the arrangement of the first guide bar 31 and the second guide bar 41, the density of the foamed layer is uniform, and the difference between the maximum density and the minimum density is reduced by more than the density difference of the existing foamed layer. 50.0%, the thermal conductivity is reduced by 3.6%, and the power consumption of the whole machine is reduced by 5.0%-8.0%.

The present invention also provides a refrigeration device, which is produced by the above-mentioned production method. Since the refrigeration equipment adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the description and drawings of the present invention, or directly/indirectly applied to other All relevant technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A production method of a refrigeration equipment, the refrigeration equipment comprises a box body, a foaming cavity is formed between the outer shell of the box body and the inner liner, and the box body is provided with a material injection port, wherein the The box also includes: a first vacuum insulation panel, attached to the inner wall of the side panel of the casing; the first guide strip is arranged on the side of the first vacuum insulation board facing the inner tank; The production method of the refrigeration equipment includes: The foaming material is injected into the foaming cavity through the injection port, so that part of the foaming material flows along the first guide strip. 2 . The method for producing a refrigeration device according to claim 1 , wherein the extending direction of the first guide strip is consistent with the material injection direction. 3 . 3. The method for producing refrigeration equipment according to claim 2, wherein the number of the first guide strips is two, and the two first guide strips are along the direction perpendicular to the injection direction. Orientation spaced. 4. The method for producing refrigeration equipment according to claim 3, wherein one of the first guide bars is disposed close to the opening of the box body, and the other one of the first guide bars is far away from the opening of the box body. The opening of the box is provided. 5 . The method for producing a refrigeration device according to claim 1 , wherein the first guide strip is a porous, flexible material. 6 . 6 . The production method of a refrigeration equipment according to claim 1 , wherein the outer surface of the first vacuum insulation panel is covered with a polyethylene film. 7 . 7. The method for producing refrigeration equipment according to any one of claims 1 to 6, wherein the box body further comprises: The second vacuum insulation panel is attached to the inner wall of the back panel of the casing, and a step is formed between the second vacuum insulation panel and the back panel; a diversion slope, arranged on the step at the injection port; The step of injecting foaming material into the foaming cavity through the injection port includes: At the injection port, the foaming material is injected into the foaming cavity from the guiding slope. 8 . The method for producing a refrigeration equipment according to claim 7 , wherein the flow guide slope is a second flow guide bar whose two ends are respectively connected to the second vacuum insulation panel and the back plate. 9 . 9. The method for producing refrigeration equipment according to claim 8, wherein the second guide bar comprises: the first connecting section is attached to the second vacuum insulation panel; a second connecting segment attached to the backplane; The flow guiding section is connected between the first connecting section and the second connecting section, and the flow guiding section is arranged obliquely. 10 . A refrigeration device, characterized in that, the refrigeration device is produced by the method for producing a refrigeration device according to any one of claims 1 to 9 .