CN221223097U - Drainage device and refrigeration equipment - Google Patents

Abstract

The present disclosure provides a drainage device and refrigeration plant, belongs to electrical apparatus technical field. The drainage device comprises a drainage pipe and a floating ball. The drain pipe comprises a first flow passage, a limiting cavity and a second flow passage which are sequentially communicated, and the first flow passage is used for receiving defrosting water in refrigeration equipment. The external diameter of floater is greater than the internal diameter of first runner and second runner, and the floater is spacing in spacing chamber, and can float in spacing chamber. The drain device has a first state in which the defrost water flowing in from the first flow passage floats and opens the second flow passage, and a second state in which the defrost water is drained to the evaporation pan through the drain pipe. Under the second state, the air pressure of the first flow channel is smaller than that of the second flow channel, the floating ball seals the first flow channel under the action of pressure difference, and the air pressure of the second flow channel cannot suddenly drop because the first flow channel and the second flow channel are separated, so that the second flow channel cannot absorb water from the evaporation dish, and water absorption noise cannot be generated.

Description

Drainage device and refrigeration equipment

Technical Field

The disclosure relates to the technical field of electrical appliances, in particular to a drainage device and refrigeration equipment.

Background

The refrigerating equipment works for a period of time and then frosts on the evaporator, and when the frost layer on the evaporator is condensed to a certain thickness, the refrigerating equipment enters a defrosting mode, so that the frost is water.

In the related art, a drain device is provided in the refrigeration apparatus, and the drain device is a drain pipe through which the defrost water flows into the evaporation dish, so that the defrost water is evaporated.

However, when the blower in the refrigerating apparatus starts to be started, the air pressure in the refrigerating apparatus is suddenly reduced, and since the drain pipe is communicated with the inside of the refrigerating apparatus, the pressure inside the drain pipe is low, so that the drain pipe is liable to absorb water from the evaporation dish, thereby generating noise of water absorption.

Disclosure of utility model

The present disclosure provides a drainage device and a refrigeration apparatus, which can solve technical problems existing in related technologies, and the technical schemes of the drainage device and the refrigeration apparatus are as follows:

In a first aspect, the present disclosure provides a drain apparatus comprising a drain pipe and a float ball;

The drain pipe comprises a first flow passage, a limiting cavity and a second flow passage which are sequentially communicated, wherein the first flow passage is used for receiving defrosting water of an evaporator of the refrigeration equipment;

the outer diameter R of the floating ball is larger than the inner diameter R1 of the first runner and the inner diameter R2 of the second runner, and the floating ball is limited in the limiting cavity and can float in the limiting cavity;

The drain device has a first state in which the defrost water flowing in from the first flow passage floats the float ball and opens the second flow passage, and a second state;

Under the second state, the air pressure of the first flow channel is smaller than that of the second flow channel, and the floating ball seals the first flow channel under the action of air pressure difference.

In one possible implementation, the floating ball is a hollow ball.

In one possible implementation, the floating ball is a plastic ball.

In one possible implementation, the inner diameter r3 of the limiting chamber increases and then decreases in the drainage direction.

In one possible implementation, the length L of the spacing cavity is 15mm-25mm.

In one possible implementation, the inner diameter r1 of the first flow channel and the inner diameter r2 of the second flow channel are 14mm-16mm;

the outer diameter R of the floating ball is 20mm-24mm.

In one possible implementation, the side wall of the limiting cavity is provided with a balance hole, and the balance hole is used for balancing the air pressure inside and outside the limiting cavity.

In one possible implementation, the side wall of the first flow channel has a balancing hole for balancing the air pressure inside and outside the first flow channel.

In one possible implementation, the balance holes have a diameter of 2mm-4mm.

In one possible implementation, the drain pipe is a corrugated pipe or a polyvinyl chloride PVC hose.

In a second aspect, the present disclosure also provides a refrigeration apparatus comprising an evaporator, an evaporation pan, and a drain as in any one of the first aspects;

The first flow passage of the drainage device is used for receiving defrosting water of an evaporator of the refrigeration equipment, and the second flow passage of the drainage device is communicated with the evaporation pan.

The technical scheme provided by the disclosure at least comprises the following beneficial effects:

The present disclosure provides a drain having a first state and a second state. Under the first state, the first flow channel flows into defrosting water, and the floating ball floats under the buoyancy effect of the defrosting water, so that the first flow channel, the limiting cavity and the second flow channel are communicated, and the defrosting water is discharged to the evaporating dish through the water discharge pipe. When the fan of the refrigeration equipment starts to start, the air pressure in the refrigeration equipment suddenly decreases, so that the air pressure in the first flow channel also decreases, the air pressure in the first flow channel is smaller than that in the second flow channel, the drainage device is in a second state, and under the action of air pressure difference, the floating ball is sucked to the lower end of the first flow channel, so that the first flow channel is blocked. The first flow passage is separated from the limiting cavity and the second flow passage, so that the air pressure at the second flow passage is not suddenly reduced, the second flow passage cannot absorb water from the evaporation dish, and water absorption noise is not generated.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:

Fig. 1 is a schematic structural view of a drainage device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a drainage device according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a drainage device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a drainage device according to an embodiment of the present disclosure;

Fig. 5 is a schematic structural view of a drainage device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a refrigeration apparatus according to an embodiment of the present disclosure.

Legend description:

1. The water draining pipe is 11, the first flow passage is 12, the limiting cavity is 120, the balance hole is 13 and the second flow passage;

2. a floating ball;

100. Evaporating dish.

Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details of the embodiments of the present disclosure will be described with reference to the accompanying drawings.

The terminology used in the description of the embodiments of the disclosure is for the purpose of describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

The drainage device is applied to the refrigeration equipment, frost can be formed on the evaporator after the refrigeration equipment works for a period of time, and when the frost layer on the evaporator is condensed to a certain thickness, the refrigeration equipment enters a defrosting mode, so that the frost is formed into water. In the related art, the drain device in the refrigerating apparatus is a drain pipe 1 through which the defrost water flows into the evaporation pan 100, thereby evaporating the defrost water.

The temperature inside the refrigeration equipment is low in the door-closed state, so that the air pressure inside the refrigeration equipment is lower than the atmospheric pressure. At the moment of starting a fan in the refrigeration equipment, the air pressure near the fan can suddenly decrease, so that the air pressure at the connection part between the drain pipe 1 and the interior of the refrigeration equipment suddenly decreases. After the fan stably operates, the air pressure in the refrigeration equipment and the air pressure in the drain pipe 1 are relatively stable.

In the related art, in order to avoid the difficulty in opening the door caused by excessive negative pressure in the refrigeration equipment, a balance hole is usually arranged on the side wall of the drain pipe 1, so as to balance the internal and external air pressures of the refrigeration equipment. However, if the balance hole is too large, more hot air outside the refrigeration equipment enters the refrigeration equipment, thereby affecting the refrigeration effect. If the balance hole is too small, the air pressure in the drain pipe 1 suddenly decreases at the moment of starting the fan, and the air pressure is difficult to balance with the outside through the balance hole, so that the drain pipe is easy to absorb water from the evaporation dish, and the noise of water absorption is generated.

In view of the above technical problems, the embodiments of the present disclosure provide a drainage device, as shown in fig. 1 to 3, including a drainage pipe 1 and a float ball 2. The drain pipe 1 comprises a first flow passage 11, a limiting cavity 12 and a second flow passage 13 which are sequentially communicated, wherein the first flow passage 11 is used for receiving defrosting water of an evaporator of the refrigeration equipment. The outer diameter R of the floating ball 2 is larger than the inner diameter R1 of the first flow channel 11 and the inner diameter R2 of the second flow channel 13, and the floating ball 2 is limited in the limiting cavity 12 and can float in the limiting cavity 12. The drain has a first state in which the defrost water flowing in from the first flow path 11 floats the float ball 2 and opens the second flow path 13, and a second state. In the second state, the air pressure of the first flow channel 11 is smaller than the air pressure of the second flow channel 13, and the floating ball 2 seals the first flow channel 11 under the action of the air pressure difference.

The drainage device is applied to the refrigeration equipment, and the refrigeration equipment is in a door closing state, so that the temperature inside the refrigeration equipment is low, and the air pressure inside the refrigeration equipment is lower than the atmospheric pressure. At the moment of starting the blower in the refrigerating apparatus, the air pressure in the vicinity of the blower is suddenly reduced, so that the air pressure at the first flow passage 11 is suddenly reduced, and the drainage device is in the second state. After the fan stably operates, the air pressure in the refrigeration equipment and at the first flow passage 11 is relatively stable. As shown in fig. 1, after the fan in the refrigeration equipment runs steadily, the floating ball 2 is positioned at the joint of the limiting cavity 12 and the second flow channel 13, and the drainage device is in a third state.

The drainage device provided by the embodiment of the disclosure has a first state and a second state. As shown in fig. 2, in the first state, the first flow passage 11 flows in the defrost water, the float ball 2 floats up under the buoyancy of the defrost water, so that the first flow passage 11, the limiting chamber 12 and the second flow passage 13 are communicated, thereby allowing the defrost water to be discharged to the evaporation pan 100 through the drain pipe 1. As shown in fig. 3, when the fan of the refrigeration equipment starts to be started, the air pressure in the refrigeration equipment suddenly decreases, so that the air pressure in the first flow channel 11 also decreases, the air pressure in the first flow channel 11 is smaller than the air pressure in the second flow channel 13, at this time, the drainage device is in the second state, and under the action of the air pressure difference, the floating ball 2 is sucked to the lower end of the first flow channel 11, so that the first flow channel 11 is blocked. The first flow channel 11, the limiting cavity 12 and the second flow channel 13 are separated, so that the air pressure at the second flow channel 13 cannot suddenly drop, the second flow channel 13 cannot absorb water from the evaporation dish, and therefore water absorption noise cannot be generated.

In order to satisfy that the floating ball 2 can float under the buoyancy of the defrost water or can block the first flow passage 11 under the pressure difference, the floating ball 2 should have a light mass and a large volume.

In some examples, as shown in fig. 1-3, the floating ball 2 is a hollow ball, and the floating ball 2 is configured as a hollow ball with both a lighter weight and a larger volume.

In some examples, the floating ball 2 is a plastic ball, and due to the low density of the plastic (such as foamed plastic), the floating ball 2 can be made lighter in weight, so that the floating ball 2 can float in the defrosting water or can be sucked to the lower end of the first flow passage 11 under the action of pressure difference.

In some examples, as shown in fig. 1-3, the inner diameter of the limiting cavity 12 increases and decreases along the drainage direction, and the inner diameters of the two ends of the limiting cavity 12 are equal to the inner diameters of the first flow channel 11 and the second flow channel 13, so that the inner wall of the drainage pipe 1 is smoother, and a good drainage effect is achieved on the defrosting water.

In some examples, as shown in fig. 1, the length L of the spacing cavity 12 is 15mm-25mm, thereby enabling the float ball 2 to move within the spacing cavity 12. If the length of the limiting cavity 12 is too small, the floating ball 2 is easy to be blocked at the lower end of the first flow channel 11 when floating under the buoyancy action of the defrosting water, so that the first flow channel 11 is blocked, and the flow of the defrosting water is further hindered. If the length of the limiting cavity 12 is too large, in the second state, the path of the floating ball 2 moving from the top end of the second flow channel 13 to the bottom end of the first flow channel 11 is long, and the moving time is long, so that the floating ball 2 is difficult to block the first flow channel 11.

In some examples, as shown in fig. 1-3, the inner diameter R1 of the first flow channel 11 and the inner diameter R2 of the second flow channel 13 are 14mm-16mm, and the outer diameter R of the float ball 2 is 20mm-24mm.

In some examples, the inner diameter r1 of the first flow passage 11 and the inner diameter r2 of the second flow passage 13 are equal.

In some examples, as shown in fig. 1-3, the maximum inner diameter r3 of the spacing cavity 12 is 23mm-26mm.

In some examples, as shown in fig. 4, the sidewall of the spacing cavity 12 has a balance hole 120, the balance hole 120 being used to balance the air pressure inside and outside the spacing cavity 12.

Next, the operation of the balance hole 120 in different states will be described.

In the first state, frost on the evaporator of the refrigeration equipment begins to melt into water, and the first runner 11 and the limiting cavity 12 are communicated with the outside through the balance hole 120, so that the phenomenon that the defrosting water is difficult to flow out due to the fact that the air pressure in the first runner 11 is too low is avoided.

In the second state, the floating ball 2 is sucked to the lower end of the first flow passage 11, and the limiting cavity 12 and the second flow passage 13 are communicated with the outside through the balance hole 120, so that the air pressure in the second flow passage 13 is kept stable, and further, the second flow passage 13 is difficult to suck water from the evaporating dish 100 of the refrigeration equipment.

In the third state, since the internal temperature of the refrigeration apparatus is low, the air pressure is lower than the atmospheric pressure, and the balance hole 120 is provided to enable the first flow passage 11 and the spacing chamber 12 to communicate with the outside, so that the internal air pressures of the first flow passage 11 and the spacing chamber 12 are not excessively low. Since the first flow passage 11 communicates with the inside of the refrigerating apparatus, a pressure difference between the inside and the outside of the refrigerating apparatus can be reduced, which can make the freezing chamber or the refrigerating chamber door of the refrigerating apparatus easy to open.

In addition to the balance holes 120 being provided on the side wall of the spacing chamber 12, they may be provided at other locations of the drain pipe 1.

In other examples, the sidewall of the first flow channel 11 has a balance hole 120, and the balance hole 120 is used to balance the air pressure inside and outside the first flow channel 11.

Next, the operation of the balance hole 120 in different states will be described.

In the first state, the first runner 11 and the limiting cavity 12 are communicated with the outside through the balance hole 120, so that the phenomenon that defrosting water is difficult to flow out due to the fact that the air pressure in the first runner 11 is too low is avoided.

In the second state, the first flow channel 11 is communicated with the outside through the balance hole 120, and the first flow channel 11 is separated from the limiting cavity 12 and the second flow channel 13, so that the air pressure at the second flow channel 13 is not suddenly reduced, the second flow channel 13 cannot absorb water from the evaporation dish, and therefore water absorption noise is not generated.

In the third state, the first flow passage 11 and the restriction chamber 12 communicate with the outside through the balance hole 120, thereby reducing a pressure difference between the inside and the outside of the refrigerating apparatus, so that the freezing chamber or the refrigerating chamber door of the refrigerating apparatus is easily opened.

In some examples, the balance holes 120 have a diameter of 2mm-4mm. If the balance hole 120 is too small, it is difficult to balance the air pressure inside and outside the refrigeration equipment, and if the balance hole 120 is too large, more hot air outside the refrigeration equipment enters the refrigeration equipment, thereby affecting the refrigeration effect of the refrigeration equipment.

In some examples, as shown in fig. 5, the spacing cavity 12 has a plurality of balance holes 120 on the side wall. Note that, the sum of the flow areas of the plurality of balance holes 120 in fig. 5 is the same as the flow area of one balance hole 120 in fig. 4.

In some examples, the sidewall of the spacing cavity 12 and the sidewall of the first flow channel 11 each have a balance hole 120.

In some examples, the drain pipe 1 is a corrugated pipe or a PVC (Poly Vinyl Chloride ) hose. The corrugated pipe has higher corrosion resistance and compression resistance, is convenient to connect, light in weight and low in cost, and can reduce the manufacturing cost of the drainage device. The PVC hose has good corrosion resistance, wear resistance and ageing resistance, and the weight of the PVC hose is lighter, and the service life is longer.

The disclosed embodiment also provides a refrigeration appliance including an evaporator, an evaporation pan 100 and a drain as described above, as shown in fig. 6, a first flow passage 11 of the drain is for receiving defrost water of the evaporator of the refrigeration appliance, and a second flow passage 13 of the drain is in communication with the evaporation pan 100.

According to the refrigerating equipment provided by the embodiment of the disclosure, as the drainage device in the refrigerating equipment comprises the drainage pipe 1 and the floating ball 2, after the defrosting water flows into the first flow passage 11, the floating ball 2 floats under the buoyancy effect of the defrosting water, so that the defrosting water flows into the evaporation dish. When the fan of the refrigeration equipment is started, the floating ball 2 can be sucked to the joint of the first flow channel 11 and the limiting cavity 12 under the action of pressure difference, so that the first flow channel 11 is blocked. Since the first flow channel 11 is separated from the limiting cavity 12 and the second flow channel 13, the air pressure at the second flow channel 13 is unchanged, and the second flow channel 13 cannot absorb water from the evaporation dish, so that water absorption noise cannot be generated.

In some examples, the refrigeration device further comprises a water receiving box, the water receiving box is opposite to the evaporator, the lower end of the water receiving box is communicated with the first flow channel 11, after frost on the evaporator is melted, defrosting water flows into the water receiving box first and then flows into the evaporation pan 100 through the drain pipe 1, and after the evaporation pan 100 works, the defrosting water evaporates, so that automatic defrosting of the refrigeration device is achieved.

In some examples, the refrigeration appliance is a household refrigerator.

The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the disclosure.

Claims (10)

1. A drainage device, characterized in that the drainage device comprises a drainage pipe (1) and a floating ball (2);

The drain pipe (1) comprises a first flow passage (11), a limiting cavity (12) and a second flow passage (13) which are sequentially communicated, wherein the first flow passage (11) is used for receiving defrosting water of an evaporator of refrigeration equipment;

The outer diameter R of the floating ball (2) is larger than the inner diameter R1 of the first flow channel (11) and the inner diameter R2 of the second flow channel (13), and the floating ball (2) is limited in the limiting cavity (12) and can float in the limiting cavity (12);

The drainage device has a first state in which the defrost water flowing in from the first flow channel (11) floats the float ball (2) and opens the second flow channel (13);

In the second state, the air pressure of the first flow channel (11) is smaller than the air pressure of the second flow channel (13), and the floating ball (2) seals the first flow channel (11) under the action of air pressure difference.

2. The drainage device according to claim 1, characterized in that the float ball (2) is a hollow ball.

3. A drainage device according to any of claims 1 or 2, wherein the float ball (2) is a plastic ball.

4. A drainage device according to claim 1, characterized in that the length L of the limiting chamber (12) is 15-25 mm.

5. A drainage device according to claim 1, wherein the inner diameter r1 of the first flow channel (11) and the inner diameter r2 of the second flow channel (13) are 14-16 mm;

the outer diameter R of the floating ball (2) is 20mm-24mm.

6. The drainage device according to claim 1, characterized in that the side wall of the spacing chamber (12) has a balancing hole (120), the balancing hole (120) being used for balancing the air pressure inside and outside the spacing chamber (12).

7. The drainage device according to claim 1, characterized in that the side wall of the first flow channel (11) has a balancing hole (120), the balancing hole (120) being used for balancing the air pressure inside and outside the first flow channel (11).

8. A drainage device according to any of claims 6 or 7, wherein the balance hole (120) has a diameter of 2mm-4mm.

9. The drainage device according to claim 1, characterized in that the drainage tube (1) is a corrugated tube or a polyvinyl chloride PVC hose.

10. A refrigeration appliance, characterized in that it comprises an evaporator, an evaporation pan (100) and a drainage device according to any one of claims 1 to 9;

the first flow channel (11) of the drainage device is used for receiving defrosting water of an evaporator of the refrigeration equipment, and the second flow channel (13) of the drainage device is communicated with the evaporation pan (100).