WO2023083222A1

WO2023083222A1 - Water pan assembly for refrigeration apparatus, and refrigeration apparatus

Info

Publication number: WO2023083222A1
Application number: PCT/CN2022/130930
Authority: WO
Inventors: 魏永巍; 赵彩云; 石陆军; 张伟
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-11-11
Filing date: 2022-11-09
Publication date: 2023-05-19
Also published as: CN116105444A

Abstract

Disclosed in the present invention are a water pan assembly for a refrigeration apparatus, and a refrigeration apparatus. The water pan assembly comprises a pan body having a sink, and a drainage channel, wherein a boss is formed at the bottom of the pan body; and the drainage channel comprises a groove body formed on the boss, and a drainage hole provided at the bottom of the groove body; the drainage hole has a water inlet and a water outlet; and a water accumulation table is arranged at the bottom of the groove body. In the embodiments of the present invention, the water accumulation table is formed on a side of the drainage hole, such that an ice seal can be rapidly formed at the drainage hole, so as to separate same from external influences.

Description

A water receiving tray assembly for refrigeration equipment and refrigeration equipment

technical field

The invention relates to the technical field of refrigeration, in particular to a water receiving pan assembly for refrigeration equipment and the refrigeration equipment.

Background technique

At present, the refrigeration function of the mainstream refrigerators in the market is mainly completed by the evaporator and the refrigerant in the pipeline. During the use of the refrigerator, because the temperature of the evaporator is lower than the external temperature, the evaporator may condense the water vapor in the external air and then frost will adhere to the surface of the evaporator, and a large number of ice cubes will be generated on the evaporator, which is easy to Affect the refrigeration effect and efficiency of the refrigerator, and even quality accidents may occur. In order to solve the frosting problem of the evaporator, a heating wire is provided on the evaporator in the prior art, and the heating wire is used to heat the evaporator during the defrosting process to remove the frost from the evaporator. At the same time, a water receiving tray is provided directly below the evaporator, and the water receiving tray is used to accept the melted frost, and the water receiving tray has a drainage channel to melt the frost on the evaporator and discharge it through the drainage channel.

The water receiving tray is generally set under the evaporator, and the cross section of the water receiving tray is approximately an inverted cone. The water inlet of the drainage channel is generally located at the lowest position of the water receiving tray, and the heating wire surrounds the evaporator to The outer surface of the evaporator provides heat, and the outer frost of the evaporator melts after receiving the heat. The water receiving tray is used to collect the water dripped when the frost on the outer surface of the evaporator melts. The surface of the refrigerator slides down to the water inlet of the drain channel, and is discharged out of the refrigerator through the drain channel.

In the actual use process, there are often some large frosts that fall from the evaporator and block the drainage channel of the water receiving tray, which may easily cause the drainage channel to be incompletely deiced. After a long time, the drainage channel will be blocked by ice. Affect the defrosting effect. In addition, because the drain hole is connected to the outside world, it is easily affected by the outside air during the cooling stage of the evaporator, resulting in a decrease in cooling efficiency.

Contents of the invention

The purpose of the present invention is to provide a water tray assembly for refrigeration equipment to solve the deficiencies in the prior art, it can effectively avoid the ice blockage of the drain hole of the water tray, and can also reduce the impact of external air on the evaporator. The effect of the compartment where it is located improves the cooling efficiency.

The water receiving tray assembly for refrigeration equipment provided by the present invention includes a tray body with a sump tank and a drainage channel communicating with the sump tank; a protrusion protruding into the sump tank is formed on the bottom of the tray body;

The drainage channel includes a tank body formed on the protrusion and opening toward the sump, and a drainage hole at the bottom of the tank body and penetrating the tray body;

The drainage hole has a water inlet arranged at the bottom of the tank and a water outlet arranged at the bottom of the tray; the size of the water inlet is smaller than the size of the bottom of the tank; the bottom of the tank is located at the A water accumulation platform extending along the horizontal direction is formed on the side of the water inlet.

Further, the drainage hole is arranged at the center of the bottom of the tank body, the cross section of the tank body has a circular structure, and the water inlet of the drainage hole is arranged concentrically with the bottom of the tank body.

Further, the cross-section of the water accumulation platform is circular and has an outer ring and an inner ring, and the distance between the outer ring and the inner ring is not less than 1/2 of the radius of the water inlet.

Further, the drainage hole is a tapered hole, and the size of the water inlet is larger than that of the water outlet.

Further, the drainage channel also has a lateral drainage hole arranged on the raised platform and communicating with the tank body and the sump, the lateral drainage hole is arranged on the side wall of the raised platform and near the bottom of the sump.

Further, the lateral drainage hole is a tapered hole and has a lateral water inlet arranged on the outer wall of the protrusion and a lateral water outlet arranged on the inner wall of the tank body, the side The size of the water inlet is larger than the lateral water outlet hole.

Further, the lateral drainage holes include a first lateral drainage hole and a second lateral drainage hole arranged on opposite side walls of the protrusion;

The bottom of the tray body also has a first guide surface for guiding flow toward the first lateral drain hole and a second guide surface for guiding flow toward the second lateral drain hole.

Further, the disc body has a length direction and a width direction, and the first guide surface and the second guide surface are oppositely arranged on both sides of the protrusion along the length direction; the first guide surface The vertical height increases with a direction away from the protrusion; the vertical height of the second guide surface increases with a direction away from the protrusion.

Further, the protrusion deviates from the center of the disc body in the length direction.

Another embodiment of the present invention also discloses a refrigerating device, which includes a box body, and the box body is provided with an inner container, an evaporator arranged in the inner container, and the water receiving tray assembly. The water tray assembly is arranged on the lower side of the evaporator; a heating element is also arranged between the water receiving tray and the evaporator, and the protrusion extends toward the heating element, and the heating element is connected to the heating element A protective baffle is also provided between the evaporators.

Compared with the prior art, the embodiment of the present invention forms an upwardly protruding platform at the bottom of the tray, and sets the drainage hole on the side wall of the platform. The setting of the platform actually lifts the drainage hole, thereby Make the drain hole closer to the heating element, which can better alleviate the ice blockage near the drain hole; at the same time, due to the formation of a water accumulation table beside the drain hole, when the evaporator is cooled after the drain is completed The water accumulated on the water storage table can be used to quickly form an ice seal at the position of the drain hole, thereby avoiding the influence of the outside air on the compartment where the evaporator is located, and improving the cooling efficiency.

Description of drawings

Fig. 1 is a first structural schematic diagram of a water tray assembly disclosed in an embodiment of the present invention;

Fig. 2 is a second structural schematic diagram of the water tray assembly disclosed in the embodiment of the present invention;

Fig. 3 is a top view of the water receiving tray assembly disclosed by the embodiment of the present invention;

Fig. 4 is a partial enlarged structural schematic diagram of the protrusion in the water tray assembly disclosed in the embodiment of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the drainage channel in the water tray assembly disclosed by the embodiment of the present invention;

Fig. 6 is a schematic diagram of the installation structure of the water tray assembly in the refrigeration equipment disclosed by the embodiment of the present invention;

Fig. 7 is a first positional relationship diagram between the water receiving pan assembly and the evaporator in the refrigeration equipment disclosed in the embodiment of the present invention;

Fig. 8 is a second positional diagram of the water receiving pan assembly and the evaporator in the refrigeration equipment disclosed in the embodiment of the present invention;

Explanation of reference signs: 1-disc body, 10-water collection tank, 11-protruding platform, 12-water storage platform, 13-first guiding surface, 14-second guiding surface, 2-drainage channel, 21-groove Body, 22-drain hole, 221-water inlet, 222-water outlet, 23-side drain hole, 231-side water inlet, 232-side water outlet,

100-evaporator, 200-heating element, 300-inner tank, 400-protective baffle.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "left", "right", "top", "bottom", "front", " The orientation or positional relationship indicated by "after" and so on is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

In the present invention, terms such as "installation", "setting", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be directly connected or indirectly connected through an intermediary, it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Embodiments of the present invention: a water receiving tray assembly for refrigeration equipment is disclosed. The water receiving tray assembly can be used in refrigerators, freezers, wine cabinets and other refrigeration equipment. The water receiving tray assembly is placed in the refrigerator and located at the evaporation The bottom of the container is used to bear the frost that falls after the evaporator defrosts. In order to solve the frosting problem of the evaporator, a heating wire is provided on the evaporator in the prior art, and the heating wire is used to heat the evaporator during the defrosting process to remove the frost from the evaporator. However, if the frost falling in the water receiving tray has large pieces of ice, it will accumulate in the water receiving tray, and it is difficult to melt the accumulated large ice pieces, which may easily cause blockage of the drainage channel.

The water receiving tray assembly for refrigeration equipment disclosed in the present application is shown in Figures 1-5, comprising: a tray body 1 with a sump 10 and a drain channel 2 communicating with the sump 10; the drain channel 2 communicates with The water collection tank 10 is connected with the outside world, and the water collection tank 10 is used to carry the ice water after the evaporator has defrosted.

In this embodiment, the bottom of the disc body 1 is formed with an upwardly protruding platform 11 , and the drainage channel 2 includes a groove formed on the platform 11 and opening to the direction of the sump 10 21 and a drain hole 22 arranged at the bottom of the tank body 21 and penetrating the tray body 11, the drain hole 22 is set at the bottom of the tank body 21 and runs through the bottom of the tank body 21 in the vertical direction , that is, the drain hole 22 runs through the tray body 11 , and the drain hole 22 communicates with the tank body 21 and the outside world, where the outside world refers to the outside of the sump 10 .

As shown in Figure 5, the drain hole 22 is a tapered hole and has a water inlet 221 arranged at the bottom of the tank body and a water outlet 222 arranged at the bottom of the tray body 1, and the size of the water inlet 221 is larger than The water outlet 222;

As shown in Figure 5, the size of the water inlet 221 is smaller than the size of the bottom of the tank body 21; the bottom of the tank body 21 is located on the side of the water inlet 221 to form a water accumulation platform 12 extending in the horizontal direction .

As shown in Figures 6-8, an evaporator 100 is provided above the tray body 1, and a heating element 200 is arranged between the evaporator 100 and the tray body 1. The heating element 200 and the heating wire arranged on the side of the evaporator 100 Together in series, the heating wires beside the evaporator 100 are used to heat the outer surface of the evaporator 100 to defrost the frost on the outer surface of the evaporator 100 . The large pieces of frost falling from the outer surface of the evaporator 100 are picked up by the tray body 1 after they fall, accumulate in the sump 10, and then be discharged through the drainage channel 2. If there are large pieces of frost, it is easy to form ice in the sump 10 Blocking. The heating element 200 provided above the sump 10 can heat the frost accumulated in the sump 10 to accelerate the melting of the frost, thereby alleviating ice blockage.

In the prior art, drain holes are generally provided directly in the low-lying places of the tray body 1, and the frosty water is directly discharged from the drain holes. In this embodiment, an upward protruding platform 11 is creatively formed at the bottom of the tray body 1. And the drain channel 2 is set as a tank body 21 opening to the sump tank 10 and a drain hole 22 arranged at the bottom of the tank body 21 and communicating the tank body 21 with the outside world. The drain hole channel 2 is arranged on the side wall of the boss 11. The advantage of this arrangement is that the boss 11 can lift the drain channel 2, so that the drain channel 2 is located closer to the heating element 200, so that it can better Play to alleviate the situation of ice blockage occurring near the drain hole 22.

Further, since the setting of the drainage channel 2 will communicate with the outside world and the chamber where the evaporator 100 is located, it is easy to cause the outside air to enter the evaporator 100 and affect the evaporation efficiency of the evaporator 100 . In order to reduce the influence of outside air on the evaporator 100 , in this embodiment, the drain hole 22 is set as a tapered hole penetrating through the tray body 1 . Specifically, the drainage hole 22 has a water inlet 221 arranged at the bottom of the tank body 21, that is, the water inlet 221 is arranged on the side close to the sump tank 10, that is, on the side near the chamber where the evaporator 100 is located, And the water outlet 222 is arranged on the bottom of the tray body 1, that is, on the side close to the outside world. Since the size of the water inlet 221 is larger than the water outlet 222, it is easier for the fluid to flow from the sump 10 to the outside. Carefree, but the flow from the outside to the water tank 10 causes inconvenience;

In the setting of the above-mentioned structure, the drain hole 22 is set as a tapered hole, and the aperture of the tapered hole is gradually reduced when facing the outside, so that the setting of the structure can easily realize the drainage of the drain hole 22, but the entry of the outside air Play a very good blocking role. When draining water, the large hole enters the small hole to drain water, but when the outside air enters the drain hole 22, it needs to enter from the small hole but come out from the large hole, which is obviously not conducive to the entry of outside air, thus avoiding the external air flow. Effect of air on the compartment where the evaporator is located.

Further, since the size of the water inlet 221 is smaller than the size of the bottom of the tank body 21, the bottom of the tank body 21 is located on the side of the water inlet 221 to form a water storage platform 12 extending in the horizontal direction. The setting of the water platform 12 can store a certain amount of water on the water storage platform 12, so that when the evaporator is frozen after the drainage, it can quickly form an ice seal on the drain hole 22, thereby further preventing the external air from affecting the evaporator. Influenced by compartments, the residual water accumulated on the water storage platform 12 can easily and rapidly form an ice seal on the drain hole 22.

In addition, in the present embodiment, the drainage hole 22 is set as a tapered hole, and an inclined hole wall is formed on the side wall of the drainage hole 22. The hole wall is an inclined plane, and the hole wall of the inclined plane is compared with the hole of the vertical enclosure 112. The area of the wall is larger, and the larger area can also accumulate part of the water on the hole wall of the drain. This part of the accumulated water can be rapidly formed near the drain hole 22 during the cooling process of the evaporator after the drain is completed. Ice seal, the formation of the ice seal is actually to block the drain hole 22, which can better prevent outside air from entering the compartment where the evaporator is located, thereby better improving the cooling efficiency of the evaporator.

In a specific embodiment, the heating wire will emit heat after it is energized. At this time, the evaporator 100 feels the heat from the heating wire, and the frost attached to the outer surface of the evaporator 100 begins to melt, and the water after the melting of the frost drops onto the plate. In the sump 10 of body 1, the outside of the refrigerator is discharged from the drainage channel 2. At the same time, some larger ice cubes become loose due to the connection with the evaporator after being heated. Under the action of gravity, part of the whole ice cubes will fall off. Under the action of gravity, the ice cubes will fall into the sump 10 and slide down to the drainage channel 2 along the bottom of the sump 10. The drainage channel 2 is lifted, and the ledge 11 can support the large ice cubes at the same time, which plays a certain role in blocking the blockage of the ice cubes to the drainage channel 2, so that the large ice cubes cannot enter the drainage channel 2. At the same time, due to the close contact between the ice cube and the heating element 200, the ice cube will receive a large amount of heat and melt into water quickly. The melted water can smoothly enter the tank body 21 from the drain hole 22, and finally be discharged through the tank body 21 The exterior of the refrigerator.

Further, the drain hole 22 is arranged at the center of the bottom of the tank body 21 , the cross section of the tank body 21 has a circular structure, and the water inlet 221 of the drain hole 22 is connected to the bottom of the tank body 21 Concentric setting. The cross section of the tank body 21 also has a circular structure.

The arrangement of the above structure makes the water storage table 12 form a ring structure located outside the drain hole 22, and has an outer ring and an inner ring, and the distance between the outer ring and the inner ring is not less than 1/ of the radius of the water inlet 221 2. The distance between the outer ring and the inner ring restricts the area of the water accumulation platform 12. The larger the area of the water accumulation platform 12, the more water remains. In this embodiment, the distance between the outer ring and the inner ring is set to be not less than The setting of 1/2 of the radius of the water outlet 221 can ensure a sufficient amount of water when an ice seal is formed on the drain hole 22 , thereby being more conducive to forming an ice seal on the drain hole 22 .

Further, a plurality of grooves 21 are formed on the protrusion 11, each of the grooves 21 is provided with the drainage hole 22, and a plurality of the grooves 21 are evenly spaced on the protrusion 11 on. Setting a plurality of groove bodies 21 can better realize the outflow of water flow.

The drainage channel 2 also has a lateral drainage hole 23 arranged on the raised platform 11 and communicating with the tank body 21 and the sump 10 , and the lateral drainage hole 23 is arranged on the raised platform 11 The position on the side wall and near the bottom of the sump 10 .

Due to the protruding upwards of the protruding platform 11, a low-lying place is formed on the side of the protruding platform 11 in the sump 10 on the tray body 1. This low-lying place is easy to accumulate more water. In order to facilitate the flow of water in these positions, this The embodiment provides lateral drainage holes 23 .

The lateral drainage hole 23 is a tapered hole and has a lateral water inlet 231 arranged on the outer wall of the protrusion and a lateral water outlet 232 arranged on the inner wall of the tank body 21. The size of the side water inlet 231 is larger than the side water outlet hole 232 .

Setting the lateral drain hole 23 as a tapered hole can also effectively avoid the influence of outside air on the chamber where the evaporator is located, thereby better improving the cooling effect.

The lateral drain hole 23 includes a first lateral drain hole and a second lateral drain hole arranged on opposite side walls of the raised platform;

The bottom of the tray body 1 also has a first guide surface 13 for guiding flow toward the first lateral drain hole and a second guide surface 14 for guiding flow toward the second lateral drain hole.

The disc body 1 has a length direction and a width direction, and the first guide surface 13 and the second guide surface 14 are oppositely arranged on both sides of the boss 11 along the length direction; the first guide surface The vertical height of the surface 13 increases with a direction away from the protrusion 11 ; the vertical height of the second guide surface 14 increases with a direction away from the protrusion 11 .

As shown in FIG. 5 , in this embodiment, the disc body 1 has a conical structure as a whole, and the protrusion 11 is formed by protruding upward from the lowest part of the conical structure. Since the cross-section of the evaporator 100 is roughly rectangular, the cross-section of the tray 1 has a rectangular structure suitable for the evaporator 100. The tray 1 has a length direction and a width direction, and the length direction The left-right direction is the left-right direction, and the width direction is the front-back direction. The specific shape of the tray body 1 is adapted to the shape of the evaporator. The cross-section of the evaporator in the prior art is rectangular and extends along the left and right directions, so the tray body 1 also extends along the left and right directions.

The conical structure of the disc body 1 is an asymmetrical conical structure, that is, the lowest point of the cone is not at the center of the disc body 1, and correspondingly, the protrusion 11 is also arranged at a distance away from the disc body in the length direction. 1 center. In this embodiment, the lowest position of the taper is on the left side in the left-right direction, which causes the bottom of the tray 1 to form two first guide surfaces 13 and second guide surfaces 14 with different slopes. A guide surface 13 and the second guide surface 14 are oppositely arranged on both sides of the boss 11 along the length direction, the first guide surface 13 and the second guide surface 14 are used to guide the water flow to the side To the drain hole 23.

In order to better realize drainage, as shown in FIGS. 2 and 3 , the drainage holes 22 include a first lateral drainage hole and a second lateral drainage hole arranged on opposite side walls of the shroud 112 ; The first guide surface 13 is used to guide the flow toward the first lateral drain hole, and the second guide surface 14 is used to guide the flow toward the second lateral drain hole.

Wherein, the slope of the first guiding surface 13 is greater than the slope of the second guiding surface 14 . That is to say, the vertical height of the first guide surface 13 increases with the direction away from the boss 11; the vertical height of the second guide surface 14 increases with the direction away from the boss 11. big. The setting of the above structure makes the flow velocity on both sides inconsistent when the water flow converges to the drainage channel 2, which can avoid the hedging of the water flow on both sides at the inlet of the drainage channel 2, resulting in poor drainage.

Another embodiment of the present invention also discloses a refrigerating device, which includes a box body, on which an inner tank 300, an evaporator 100 arranged in the inner tank 300, a heating wire and the connecting wire are arranged. A water pan assembly, the water receiving pan assembly is arranged on the lower side of the evaporator 100, the heating wire is arranged on the side of the evaporator 100, and the refrigeration equipment also has The heating element 200 between the water tray assemblies, the heating element 200 is a tubular heating element, and the heating element 200 is connected in series with the heating wire.

In order to better protect the heating element 200 , a protective baffle 400 is also provided between the evaporator 100 and the heating element 200 . The protective baffle 400 is used to protect the heating element 200 , and can effectively avoid damage to the heating element 200 caused by large ice cubes falling from the evaporator 100 .

The structure, features and effects of the present invention have been described in detail above based on the embodiments shown in the drawings. The above descriptions are only preferred embodiments of the present invention, but the present invention does not limit the scope of implementation as shown in the drawings. Changes made to the idea of the present invention, or modifications to equivalent embodiments that are equivalent changes, and still within the spirit covered by the description and illustrations, shall be within the protection scope of the present invention.

Claims

A water receiving tray assembly for refrigeration equipment, characterized in that it includes: a tray body with a water collection tank and a drainage channel communicated with the water collection tank; the bottom of the tray body is formed with a Protrusion;

The drainage channel includes a tank body formed on the protrusion and opening toward the sump, and a drainage hole at the bottom of the tank body and penetrating the tray body;

The drainage hole has a water inlet arranged at the bottom of the tank and a water outlet arranged at the bottom of the tray; the size of the water inlet is smaller than the size of the bottom of the tank; the bottom of the tank is located at the A water accumulation platform extending along the horizontal direction is formed on the side of the water inlet.
The water tray assembly for refrigeration equipment according to claim 1, wherein the drainage hole is set at the center of the bottom of the tank body, the cross section of the tank body has a circular structure, the The water inlet of the drainage hole is arranged concentrically with the bottom of the tank body.
The water tray assembly for refrigeration equipment according to claim 2, wherein the cross-section of the water storage platform is circular and has an outer ring and an inner ring, and the distance between the outer ring and the inner ring is Not less than 1/2 of the radius of the water inlet.
The water tray assembly for refrigeration equipment according to claim 1, wherein the drain hole is a tapered hole, and the size of the water inlet is larger than that of the water outlet.
The water tray assembly for refrigeration equipment according to claim 1, wherein the drainage channel also has a lateral drainage hole arranged on the raised platform and communicating with the tank body and the water collection tank , the lateral drainage hole is arranged on the side wall of the raised platform and close to the bottom of the sump.
The water tray assembly for refrigeration equipment according to claim 5, characterized in that: the side drain hole is a tapered hole and has a side water inlet and a setting on the outer wall of the protrusion The side water outlet is on the inner side wall of the tank body, the size of the side water inlet is larger than the side water outlet hole.
The drain pan assembly for refrigeration equipment according to claim 6, wherein the lateral drain hole includes a first lateral drain hole and a second lateral drain hole disposed on opposite side walls of the protrusion. to the drainage hole;

The bottom of the tray body also has a first guide surface for guiding flow toward the first lateral drain hole and a second guide surface for guiding flow toward the second lateral drain hole.
The water receiving tray assembly for refrigeration equipment according to claim 7, wherein the tray body has a length direction and a width direction, and the first guide surface and the second guide surface are along the length direction Relatively arranged on both sides of the boss; the vertical height of the first guide surface increases with the direction away from the boss; the vertical height of the second guide surface increases with the distance away from the boss The direction of the ledge increases.
The water receiving tray assembly for refrigeration equipment according to claim 8, characterized in that, in the length direction, the protrusion deviates from the center of the tray body.
A refrigerating device, characterized in that it comprises a box, the box is provided with an inner container, an evaporator arranged in the inner container, and the water receiving tray assembly according to claim 1, the water receiving The tray assembly is arranged on the lower side of the evaporator; a heating element is also arranged between the water receiving tray and the evaporator, and the protrusion extends toward the direction of the heating element, and the heating element and the A protective baffle is also arranged between the evaporators.