Drainage pipe for cooling system and cooling system

Abstract

The present invention provides a drain pipe for a refrigeration device and a refrigeration device. The drain pipe is formed with an inner wall, a cavity surrounded by the inner wall, a water inlet located at an upper end, and a water outlet located at a lower end, and a shielding plate is provided inside the drain pipe and pivotally connected to the drain pipe, the shielding plate having a first position for partially shielding the cavity under the action of gravity and a second position for lifting toward the water inlet of the drain pipe under the action of negative pressure. When the shielding plate is in the first position, a drain hole is formed between the shielding plate and the inner wall for water to flow through. The drain pipe provided by the present invention not only has a drainage function, but also has the effect of balancing the air pressure difference.

Description

[Technical field]

[0001] The present invention relates to the field of cooling equipment technology, and in particular to a drain pipe for a cooling equipment and a cooling equipment. [Background technology]

[0002] In refrigerators and upright freezers, the temperature inside the cooling compartment is low, so the air pressure is lower than the outside atmospheric pressure, forming a negative pressure inside the cooling compartment. This requires a lot of force to open the door. As the capacity of refrigerators increases, the freezer compartment door becomes more difficult to open, which has become an issue in the industry. Currently, there is a patent for installing an auxiliary handle on the door, but this method has limited labor-saving effect, is expensive, and occupies a large space. Summary of the Invention

[0003] The object of the present invention is to provide a drain pipe for a cooling device and a cooling device. A shield plate capable of partially blocking the cavity of the drain pipe is arranged inside the drain pipe, and water flows out from a drain hole between the shield plate and the inner wall of the drain pipe. When negative pressure occurs inside the refrigerator, the shield plate rises to expand the flow area inside the drain pipe, and balance the air pressure inside and outside the housing. In addition, the drain pipe can be embedded in a foam layer, which solves the problem that the labor-saving effect of the auxiliary handle of the existing technology is limited and it occupies a large space.

[0004] In order to achieve one of the above objects, one embodiment of the present invention provides a drain pipe for a cooling device, the drain pipe having an inner wall, a cavity surrounded by the inner wall, a water inlet at an upper end, and a drain outlet at a lower end. A shield plate is provided inside the drain pipe and pivotally connected to the drain pipe, the shield plate having a first position for partially blocking the cavity under the action of gravity and a second position for lifting toward the water inlet of the drain pipe under the action of negative pressure. When the shield plate is in the first position, a drain hole through which water flows is formed between the shield plate and the inner wall.

[0005] As a further improvement of one embodiment of the present invention, the drain pipe has a water flow section and a ventilation section, the ventilation section is formed protruding outward from the center of the water flow section, a water flow cavity is formed inside the water flow section, a ventilation cavity is formed inside the ventilation section, and the water flow cavity and the ventilation cavity are connected.

[0006] As a further improvement of one embodiment of the present invention, the shielding plate is connected to the drain pipe via a pivot shaft, the pivot shaft being located within the water flow cavity, and an end of the shielding plate remote from the pivot shaft being located within the ventilation cavity.

[0007] As a further improvement of one embodiment of the present invention, the ventilation section includes a main body and a cover section, and the cover section is provided with an inclined plate, which is provided above the pivot axis and inclined downward toward the drain hole, making it easier for water to flow out of the drain pipe from the drain hole.

[0008] As a further refinement of an embodiment of the invention, a support plate is provided at the water flow section, said support plate being arranged at an end of said inclined plate close to said drainage hole, said inclined plate being placed on said support plate.

[0009] As a further improvement of an embodiment of the present invention, a protrusion is provided in the water flow section, the protrusion being positioned below the pivot shaft and biased towards the ventilation cavity, and the shielding plate contacts the protrusion.

[0010] As a further refinement of one embodiment of the present invention, the drain pipe includes a first drain pipe located at an upper end and a second drain pipe connected to a lower end of the first drain pipe, the water inlet is located at an end of the first drain pipe remote from the second drain pipe, the drain outlet is located at an end of the second drain pipe remote from the first drain pipe, and the second drain pipe is positioned at an angle to a horizontal plane, and the end on the drain outlet side is lower than the connection end between the second drain pipe and the first drain pipe.

[0011] As a further improvement of one embodiment of the present invention, the shielding plate is connected to the upper part of the second drain pipe via a pivot axis, and when no external force is applied, the shielding plate naturally hangs down due to gravity, and the drain hole is formed between the end of the shielding plate away from the pivot axis and the bottom of the second drain pipe.

[0012] As a further refinement of one embodiment of the present invention, the bottom of the second drain pipe is V-shaped, so that water will collect at the apex of the V-shape and prevent the water from splashing after flowing out of the drain pipe.

[0013] One embodiment of the present invention further provides a cooling device, comprising an internal lining, a water tray and a drain pipe, the drain pipe being the aforementioned drain pipe, the upper end of the drain pipe being connected to the internal lining, and the water tray being provided below the drain pipe.

[0014] One or more technical solutions provided by the present invention have at least the following technical effects or advantages: The drain pipe provided by the present invention has a shield plate pivotally connected to the drain pipe inside, the shield plate partially blocks the cavity of the drain pipe, and forms a drain hole between the shield plate and the inner wall through which water flows. In normal drainage conditions, water is discharged from the water inlet through the drain hole and out of the drain pipe through the drain port. When the door of the cooling device needs to be opened, negative pressure is formed inside the cooling chamber due to the low temperature, and the moment the door is opened, the shield plate is lifted by the negative pressure, and the flow area inside the drain pipe is expanded. Outside air enters through the drain port of the drain pipe and flows into the cooling chamber to balance the air pressure. The present invention can be easily opened when opening the door without additional air pressure balancing device or auxiliary handle, and the drain pipe can be buried in the foam layer, occupying a small space. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a rear view of the cooling device according to the first embodiment of the present invention. [Diagram 2] FIG. 2 is a structural diagram of the drainage pipe of FIG. [Diagram 3] FIG. 3 is a side view of the drain pipe of FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along the line AA in FIG. [Diagram 5] FIG. 5 is a cross-sectional view taken along line BB in FIG. [Figure 6] FIG. 6 is a structural diagram of the cover portion of FIG. [Figure 7] FIG. 7 is a rear view of the cooling device according to the second embodiment of the present invention. [Figure 8] FIG. 8 is a structural diagram of the drainage pipe of FIG. [Figure 9] FIG. 9 is a side view of the drain pipe of FIG. [Figure 10] FIG. 10 is a cross-sectional view taken along line CC in FIG. [Explanation of symbols]

[0016] 10, housing; 1, drain pipe; 11, shielding plate; 111, pivot axis; 112, shielding plate body; 12, water inlet; 13, drain; 14, drainage hole; 2, water flow section; 21, water flow cavity; 22, protrusion; 3, ventilation part; 31, ventilation cavity; 32, main body; 33, cover part; 331, locking pawl; 332, inclined plate; 3321, first fixing hole; 34, support plate; 4, first drain pipe; 5, second drain pipe; 51, second fixing hole; 6. Water tray DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The present invention will be described in detail below based on the embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional modifications made by those skilled in the art based on these embodiments are also included in the scope of protection of the present invention.

[0018] The terms "top", "upper", "lower", "lower" and other spatially relative terms used herein are for convenience in describing the relationship of one element or feature to another element or feature shown in the figures. The terms "top", "upper", "lower", "lower" and other spatially relative terms are intended to include different orientations than those shown during use or operation of the device. For example, if the device in the figures is inverted, an element described as being "below" or "lower" than another element or feature would then be located "above" the other element or feature. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.

[0019] In addition, although terms such as "first" and "second" may be used in the text to describe various elements or structures, it should be understood that these descriptions should not be limited by these terms. These terms are used only to distinguish these descriptions from each other. For example, the first drain pipe can be called the second drain pipe, and similarly, the second drain pipe can be called the first drain pipe, without departing from the scope of protection of the present application.

[0020] <Example 1> This embodiment provides a drain pipe 1 for a cooling device. As shown in Fig. 1, the cooling device includes a housing 10. An inner lining, a water tray 6, and the aforementioned drain pipe 1 are arranged in the housing 10. The upper end of the drain pipe 1 is connected to the inner lining, and the water tray 6 is installed below. Therefore, the present invention also provides a cooling device having the aforementioned drain pipe 1.

[0021] As shown in Figures 2 to 5, the aforementioned drain pipe 1 has an inner wall, a cavity surrounded by the inner wall, a water inlet 12 located at an upper end, and a drain outlet 13 located at a lower end. A shielding plate 11 pivotally connected to the drain pipe 1 is disposed inside the drain pipe 1. The shielding plate 11 has a first position in which it partially blocks the cavity under the action of gravity, and a second position in which it is raised toward the water inlet 12 of the drain pipe 1 under the action of negative pressure. When the shielding plate 11 is in the first position, a drain hole 14 through which water flows is formed between the shielding plate 11 and the inner wall.

[0022] Specifically, the drain pipe 1 includes a water flow section 2 and a ventilation section 3. The ventilation section 3 is formed by protruding outward from the center of the water flow section 2. A water flow cavity 21 is formed inside the water flow section 2, and a ventilation cavity 31 is formed inside the ventilation section 3, and the water flow cavity 21 and the ventilation cavity 31 are connected to each other. The ventilation section 3 includes a main body 32 and a cover section 33, and an opening is provided on one side of the main body 32, which extends toward the water flow section 2. The cover section 33 is used to cover the opening, and a plurality of locking claws 331 are provided on the cover section 33 and used to engage and fix with the main body 32. The main body 32 of the ventilation section 3 is integrally molded with the water flow section 2. The design of the cover section 33 makes it easy to install the shielding plate 11 inside the drain pipe 1, and even if damage occurs inside, it is easy to disassemble and replace.

[0023] Furthermore, the cover part 33 is provided with an inclined plate 332 in the cavity of the drain pipe 1. The inclined plate 332 extends from the cover part 33 to the side of the drain pipe 1 away from the cover part 33, and penetrates the water flow cavity 21 and the ventilation cavity 31. A first fixing hole 3321 is provided on both sides of the lower end of the inclined plate 332 close to the drain hole 14. The shield plate 11 includes a pivot shaft 111 and a shield plate body 112 connected to each other. Both ends of the pivot shaft 111 penetrate the first fixing hole 3321, pivotally connecting the shield plate 11 to the drain pipe 1. The inclined plate 332 is inclined downward toward the drain hole 14, so that the water flowing in from the water inlet 12 is guided toward the drain hole 14 by the guiding action of the inclined plate 332, and flows out of the drain pipe from the drain port 13.

[0024] Furthermore, the end of the inclined plate 332 farther from the drainage hole 14 extends upward into the ventilation cavity 31, thereby preventing water flowing into the water flow cavity 21 from the water inlet 12 from flowing into the ventilation cavity 31.

[0025] Furthermore, the ventilation section 3 is provided with a support plate 34 that penetrates the ventilation cavity 31. The support plate 34 is disposed below the inclined plate 332 and is inclined at the same angle as the inclined plate 332. This allows the inclined plate 332 to be placed on the support plate 34, preventing the inclined plate 332 from breaking at the connection with the cover section 33 inside the drain pipe 1 due to its own weight.

[0026] Furthermore, the water flow section 2 is provided with a protrusion 22. The protrusion 22 is positioned below the pivot shaft 111 and biased toward the ventilation cavity 31, and the shielding plate 11 comes into contact with the protrusion 22 under the action of gravity. By providing the protrusion 22, the end of the shielding plate body 112 farther from the pivot shaft 111 approaches the bottom of the ventilation section 3, and a gap remains between the end and the bottom of the ventilation section 3, so that a small amount of water that has flowed into the ventilation cavity 31 can flow out from this gap.

[0027] Of course, the protrusions 22 may not be provided and the shielding plate 11 may be made to contact the bottom of the ventilation section 3 under the action of gravity. Even if a small amount of water flows into the ventilation cavity 31, the water can flow out when the shielding plate 11 is lifted.

[0028] In this embodiment, a shield plate 11 is disposed inside the drain pipe 1, and the shield plate 11 contacts the protrusion 22 under the action of gravity. The shield plate 11 blocks most of the inside of the drain pipe 1, significantly preventing moisture in the air from entering the housing 10 from the drain pipe 1 and causing serious frost in the housing 10. However, the shield plate 11 leaves a drain hole 14 through which water can flow into the drain pipe 1, and an inclined plate 332 is disposed above the shield plate 11 to guide water. When the cooling device is off, the condensed water is discharged from the drain hole 14 by the inclined plate 332. When the cooling device needs to be opened, the shield plate 11 is lifted by the action of negative pressure, the aforementioned gap becomes larger, and the outside air can rapidly enter the housing 10 from the drain hole 13, so that the air pressure inside and outside the housing 10 can be balanced. The drain pipe 1 provided in this embodiment has a drainage function and also has the effect of balancing the air pressure difference, and furthermore, the drain pipe 1 can be embedded in the foam layer, and does not need to occupy a large space in the housing 10.

[0029] <Example 2> This embodiment provides a drain pipe 1 for a cooling device. As shown in Fig. 7, the cooling device includes a housing 10. An inner lining, a water tray 6, and the aforementioned drain pipe 1 are arranged in the housing 10. The upper end of the drain pipe 1 is connected to the inner lining, and the water tray 6 is installed below. Therefore, the present invention also provides a cooling device having the aforementioned drain pipe 1.

[0030] As shown in Figures 7 to 9, the aforementioned drain pipe 1 has an inner wall, a cavity surrounded by the inner wall, a water inlet 12 located at an upper end, and a drain outlet 13 located at a lower end. A shielding plate 11 pivotally connected to the drain pipe 1 is disposed inside the drain pipe 1. The shielding plate 11 has a first position in which it partially blocks the cavity under the action of gravity, and a second position in which it is raised toward the water inlet 12 of the drain pipe 1 under the action of negative pressure. When the shielding plate 11 is in the first position, a drain hole 14 through which water flows is formed between the shielding plate 11 and the inner wall.

[0031] Specifically, the drain pipe 1 includes a first drain pipe 4 and a second drain pipe 5 which are interconnected. The bottom end of the first drain pipe 4 is connected to the top end of the second drain pipe 5. The water inlet 12 is located at the end of the first drain pipe 4 remote from the second drain pipe 5, and the drain outlet 13 is located at the end of the second drain pipe 5 remote from the first drain pipe 4. The second drain pipe 5 is disposed at an angle to the horizontal plane, such that the end on the drain outlet 13 side is lower than the connection end of the second drain pipe 5 and the first drain pipe 4.

[0032] The shielding plate 11 includes a pivot shaft 111 and a shielding plate body 112 connected to each other. Second fixing holes 51 are formed on both sides of the upper part of the second drain pipe 5 on the drain outlet 13 side. The pivot shaft 111 passes through the second fixing holes 51 on both sides of the upper part of the second drain pipe 5. When no external force is applied, the shielding plate 11 naturally hangs down and forms the aforementioned drainage hole 14 between itself and the bottom of the second drain pipe 5.

[0033] When the drain pipe 1 is in the first state, that is, when the drain pipe 1 is in a normal drainage state, water enters the drain pipe 1 from the water inlet 12 at the upper end of the first drain pipe 4, flows out of the drain pipe 1 from the drain outlet 13 at the lower end of the second drain pipe 5, and flows into the water tray 6. The second drain pipe 5 is arranged at an angle to the horizontal plane, so that water can be smoothly discharged from the drain pipe 1 and water accumulation in the drain pipe 1 can be prevented. At the same time, when the shield plate 11 naturally hangs down due to gravity, a drain hole 14 can be formed between the shield plate 11 and the inner wall of the drain pipe 1. When there is a large amount of water, the water pushes the shield plate 11 open in the direction of the drain outlet 13, enlarging the drain hole 14 and facilitating drainage.

[0034] When the drain pipe 1 is in the second state, that is, at the moment the door is opened, the temperature inside the housing 10 is low, so negative pressure is created inside the housing 10. When the door is opened, the shielding plate 11 is lifted toward the water inlet 12 by the action of the negative pressure, and the outside air rapidly enters the drain pipe 1 from the drain outlet 13 and further into the housing 10, thereby equalizing the air pressure inside and outside the housing 10.

[0035] Furthermore, the bottom of the second drain pipe 5 is V-shaped. Due to the V-shaped bottom, when the water collects at the apex of the V and is finally discharged from the drain outlet 13, the water flows into the water tray 6 in a single stream, preventing the water in the drain pipe 1 from splashing in all directions when it flows into the water tray 6.

[0036] In this embodiment, a shield plate 11 is disposed inside the drain pipe 1, and the shield plate 11 blocks most of the inside of the drain pipe 1, but leaves a drain hole 14 through which water can flow. When the cooling device is off, the condensed water can be normally discharged, and the moisture in the air can be significantly prevented from entering the housing 10 through the drain pipe 1 and causing serious frost inside the housing 10. When the cooling device needs to be opened, the shield plate 11 is lifted by the action of negative pressure, the drain hole 14 becomes larger, and the outside air can rapidly enter the housing 10 through the drain port 13, so that the air pressure inside and outside the housing 10 can be balanced. The drain pipe 1 provided in this embodiment has the function of draining water and the effect of balancing the air pressure difference at the same time, and the drain pipe 1 can be embedded in the foam layer, so that it does not need to occupy a large space in the housing 10.

[0037] It should be noted that, although this specification is described based on the embodiments, each embodiment does not include only independent technical solutions, and this description method is merely for clarity. Those skilled in the art can take the specification as a whole and appropriately combine the technical solutions of each embodiment to form other embodiments that are understandable to those skilled in the art.

[0038] The above detailed description is merely a specific description of the possible embodiments of the present invention, and does not limit the scope of protection of the present invention. Any equivalent embodiments or modifications made within the scope of the technical idea of ​​the present invention shall be included in the scope of protection of the present invention.

Claims

1. A drain pipe for a cooling device, comprising: The drain pipe has an inner wall, a cavity surrounded by the inner wall, a water inlet located at an upper end, and a drain outlet located at a lower end, a shield plate provided within the drain pipe and pivotally connected to the drain pipe; The shielding plate has a first position where it partially blocks the cavity under the action of gravity, and a second position where it is raised toward the water inlet of the drain pipe under the action of negative pressure, When the shield plate is in the first position, a drain hole through which water flows is formed between the shield plate and the inner wall. Drain pipe for cooling equipment.

2. The drain pipe has a water flow section and a ventilation section, The ventilation section is formed by protruding outward from a center portion of the water flow section, A water flow cavity is formed inside the water flow section, A ventilation cavity is formed inside the ventilation section, The water flow cavity and the ventilation cavity are in communication with each other. The drain pipe for a cooling system according to claim 1.

3. The shielding plate is connected to the drain pipe via a pivot shaft, The pivot shaft is disposed within the water flow cavity; An end of the shield plate remote from the pivot axis is located within the ventilation cavity. The drain pipe for a cooling device according to claim 2.

4. The ventilation unit includes a main body and a cover unit, The cover portion is provided with an inclined plate, The inclined plate is provided above the pivot shaft and inclined downward toward the drain hole, Water is easily discharged from the drain hole to the outside of the drain pipe. The drain pipe for a cooling device according to claim 3.

5. A support plate is provided in the water flow section, The support plate is disposed at an end of the inclined plate close to the drain hole, The inclined plate is placed on the support plate. The drain pipe for a cooling device according to claim 4.

6. A protrusion is provided within the water flow section, The protrusion is positioned below the pivot shaft and biased toward the ventilation cavity, The shielding plate contacts the protrusion. The drain pipe for a cooling device according to claim 3.

7. The drain pipe includes a first drain pipe located at an upper end and a second drain pipe connected to a lower end of the first drain pipe, the water inlet is located at an end of the first drain pipe remote from the second drain pipe; the drain outlet is located at an end of the second drain pipe away from the first drain pipe, The second drain pipe is disposed at an angle to a horizontal plane; The end portion on the drain port side is lower than the connection end portion between the second drain pipe and the first drain pipe. The drain pipe for a cooling system according to claim 1.

8. The shielding plate is connected to the upper part of the second drain pipe via a pivot shaft, When no external force is applied, the shielding plate naturally sags due to gravity, The drain hole is formed between the end of the shield plate away from the pivot shaft and the bottom of the second drain pipe. The drain pipe for a cooling device according to claim 7.

9. The bottom of the second drainage pipe is V-shaped, Water collects at the top of the V-shape, preventing water from splashing out after it flows out of the drain. The drain pipe for a cooling device according to claim 7.

10. 1. A cooling device comprising: Includes inner lining, water tray and drain pipe. The drain pipe is the drain pipe according to claim 1, an upper end of the drain pipe is connected to the inner lining; The water tray is provided below the drain pipe. Cooling device.

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