Drainage structure of evaporator
By designing an inclined water tray, a main drain hole group, and an electrically heated evaporator drainage structure in the heat pump unit, the problem of defrosting water freezing was solved, achieving efficient drainage and preventing frost formation, protecting unit components, and ensuring the normal operation of the unit.
Patent Information
- Application Number
- CN202520332828.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing heat pump units are prone to freezing after defrosting at low ambient temperatures, resulting in low drainage efficiency and potential damage to components. Existing drainage solutions pose a risk of defrost water scattering or freezing over long distances.
Design an evaporator drainage structure including an inclined water receiving tray, a main drain hole group, a V-shaped drain groove and an electric heating element. The inclined design accelerates water flow and the electric heating prevents frost formation. The drainage path is optimized by combining the drain groove and the drain nozzle.
It achieves efficient discharge of defrost water, avoids frost and ice formation, improves drainage efficiency, protects unit components, and ensures normal unit operation.
Smart Images
Figure CN223882587U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of drainage structure of evaporator. BACKGROUND
[0002] At present, when heat pump unit operates at low ambient temperature, a large amount of frost will be formed on the surface of evaporator, and the unit needs to be defrosted periodically. The water after defrosting is likely to freeze quickly at low temperature, affecting the normal operation of the unit. Therefore, it is an important task to quickly discharge the defrosting water of the heat pump unit. There are two existing drainage schemes:
[0003] 1. Large area hollowing under the evaporator, natural drainage after the unit defrosting. This method is simple in structure and smooth in drainage, but the defrosting water scattered everywhere can cause the ground around the unit to be wet and even freeze, affecting the user's health, and even causing damage to the parts under the evaporator and leading to unit failure.
[0004] 2. A U-shaped drainage ditch is designed to be suspended under the evaporator, and a drainage nozzle is designed in the middle of the drainage ditch for concentrated drainage. This method solves the problem of defrosting water scattering, and the drainage speed is also relatively fast. However, the long and wide drainage ditch will cause the defrosting water at both ends to flow a long distance before entering the drainage nozzle, and there is a risk of re-frosting or even freezing of the defrosting water during this process. SUMMARY
[0005] The utility model aims at overcoming the shortcomings of the prior art and providing a kind of drainage structure of evaporator. The water after defrosting of evaporator can be discharged efficiently, and the defrosting water will not re-frost, with high drainage efficiency.
[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows. It is a kind of drainage structure of evaporator, characterized by comprising:
[0007] evaporator and water receiving tray; a main water leakage hole group is provided on the water receiving tray, and the evaporator is located above the main water leakage hole group; and
[0008] drainage channel; the drainage channel is located below the water receiving tray, and the drainage channel corresponds to the main water leakage hole group, the drainage channel is "V" type, and a drainage nozzle communicating with the drainage channel is provided below the "V" type of the drainage channel.
[0009] In the technical scheme, the water receiving tray includes a downwardly inclined slope and a water receiving plate, the bottom of the slope is connected to the end of the water receiving plate to form a "V" shape, the evaporator is inclinedly installed at the slope, and the return air side of the evaporator is inclined downward, and the main water leakage hole group is installed on the slope and located below the evaporator.
[0010] In the technical solution, the front, rear and right side edges and the front and rear edges of the inclined surface of the water receiving plate are provided with upward baffles, the water receiving plate is arranged in an inclined manner, and the inclined direction is opposite to the inclined direction of the evaporator and the inclined surface.
[0011] In the technical solution, the front and rear ends of the main water leakage hole group exceed the bottom of the evaporator; the main water leakage hole group comprises a plurality of main water leakage holes arranged in a transverse direction, gaps are formed between each main water leakage hole to form a support surface, and auxiliary water leakage holes are arranged on the support surface.
[0012] In the technical solution, the right side of the drain groove is arranged in close contact with the lower part of the water receiving tray.
[0013] In the technical solution, the drain nozzle is located at the lowest part of the drain groove, and the upper part of the drain groove is a downwardly sunken concave platform.
[0014] In the technical solution, the electric heating element is further arranged, and more than one wire clamp is arranged in the drain groove, the electric heating element is assembled in the drain groove through the wire clamp, and the electric heating element has a U-shaped structure.
[0015] In the technical solution, the drain pipe is further arranged, the water inlet of the drain pipe is communicated with the drain nozzle, and the electric heating element extends into the drain pipe.
[0016] In the technical solution, the electric heating element extends into the drain pipe by a length equal to the bottom of the drain pipe.
[0017] In the technical solution, the tail part of the drain nozzle has a threaded structure.
[0018] Compared with the prior art, the evaporator defrosting water can be efficiently discharged, the defrosting water cannot be re-frosted, and the water discharge efficiency is high. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic diagram of the utility model;
[0020] Figure 2 is a structural schematic diagram of the utility model in a top view;
[0021] Figure 3 is a side view of the utility model;
[0022] Figure 4 is a structural schematic diagram of the utility model after the drain pipe and the electric heating element extending into the drain pipe are installed;
[0023] Figure 5 is a structural schematic diagram of the water receiving tray of the utility model;
[0024] Figure 6 is a structural schematic diagram of the electric heating element and the drain groove of the utility model;
[0025] Figure 7 is a structural schematic view of the drainage groove of the utility model. DETAILED DESCRIPTION
[0026] The specific embodiments of the utility model will be further described below in combination with the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0027] As Figures 1 to 7 shown, it is a drainage structure of an evaporator, comprising:
[0028] an evaporator 1 and a water receiving tray; a main water leakage hole group 23 is arranged on the water receiving tray, the evaporator 1 is located on the water receiving tray and above the main water leakage hole group 23; and
[0029] a drainage groove 3; the drainage groove 3 is located below the water receiving tray, and the drainage groove 3 corresponds to the main water leakage hole group 23, the drainage groove 3 is in a "V" shape, and a drainage nozzle 31 communicating with the drainage groove 3 is arranged below the "V" shape of the drainage groove 3.
[0030] When working, the defrosting water of the evaporator 1 flows into the drainage groove 3 after passing through the main water leakage hole group 23, and is discharged from the unit through the drainage nozzle 3, and the "V" shape of the drainage groove 3 enables the defrosting water to be quickly discharged.
[0031] In the embodiment, the water receiving tray comprises a downwardly inclined slope 21 and a water receiving plate 26, the bottom of the slope 21 is connected with the end of the water receiving plate 26 so as to be in a "V" shape, the evaporator 1 is obliquely installed at the slope 21 and the air return side of the evaporator 1 is inclined downward, and the main water leakage hole group 23 is installed on the slope 21 and below the evaporator 1. When using, when the defrosting water flows downward along the evaporator 1 from top to bottom, a small amount of defrosting water that drips halfway due to gravity can drip into the water receiving plate 26, so as to avoid the defrosting water from dripping into the interior of the unit and affecting the use of other parts of the unit, the main water leakage hole group 23 is on the downwardly inclined slope 21 of the water receiving tray, so as to improve the speed of the defrosting water flowing into the drainage groove 3, and at the same time, to avoid water accumulation in local depressions caused by processing errors of the water receiving tray; the evaporator 1 is obliquely installed on the slope 21 and is attached to the main water leakage hole group 23, so as to realize zero-distance drainage; and the air return side of the evaporator 1 is inclined downward, so as to minimize the air return resistance caused by the water receiving tray.
[0032] In the embodiment, the front, back and right side edges of the water collecting plate 26 and the front and back edges of the slope 21 are provided with upward baffles 24. The water collecting plate 26 is arranged in an inclined manner, and the inclined direction is opposite to the inclined direction of the evaporator 1 and the slope 21. In use, the baffles 24 prevent defrosting water from leaking out, and the inclined direction of the water collecting plate 26 is opposite to the inclined direction of the evaporator 1 and the slope 21, thereby accelerating the drainage speed of the defrosting water dropped into the water collecting plate 26.
[0033] In the embodiment, the front and back ends of the main water leakage hole group 23 extend beyond the bottom of the evaporator 1, thereby avoiding that the bottom of the evaporator 1 is completely sealed by the water collecting plate due to machining and assembly errors, and reducing the drainage speed. The main water leakage hole group 23 includes a plurality of main water leakage holes arranged in a transverse direction, and each main water leakage hole has a gap therebetween to form a support surface 27, thereby strengthening the support effect on the evaporator 1. The support surface 27 is provided with auxiliary water leakage holes 22 to avoid that the evaporator 1 cannot drain water at the supported position.
[0034] In the embodiment, the right side of the drainage groove 3 is arranged in close contact with the lower part of the water collecting plate, thereby avoiding that the return air passes through the drainage groove 3 and the water collecting plate and directly enters the air outlet side, and avoiding that the effective air volume is reduced and the defrosting water flowing resistance is increased.
[0035] In the embodiment, the drainage nozzle 31 is located at the lowest part of the drainage groove 3, and the upper part of the drainage groove 3 is a downwardly sunken concave platform 33, thereby further ensuring that there is no water accumulation after drainage.
[0036] In the embodiment, the electric heating element 4 is further included, and more than one wire clamp 5 is arranged in the drainage groove 3. The electric heating element 4 is assembled in the drainage groove 3 through the wire clamp 5, and the electric heating element 4 has a "U" shape. The heating element 4 can heat the water in the drainage groove 3 to avoid secondary frosting of the defrosting water caused by too low temperature. There is a gap between the left side of the drainage groove 3 and the water collecting plate to ensure the space for replacing the electric heating element.
[0037] In the embodiment, the drainage pipe 6 is further included. The water inlet of the drainage pipe 6 is communicated with the drainage nozzle 31, and the electric heating element 4 extends into the drainage pipe 6, thereby making the water quickly drain out of the drainage groove 3 and preventing the drainage pipe 6 from frosting.
[0038] In the embodiment, the electric heating element 4 extends to the bottom of the drainage pipe 6, thereby avoiding abrasion of the electric heating element 4 when the electric heating element 4 extends out of the drainage pipe 6 in use.
[0039] In the embodiment, the tail part of the drainage nozzle 31 has a threaded structure, thereby making the drainage pipe 6 more firmly installed.
[0040] The embodiments of the present application are described in detail in combination with the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and deformations of the embodiments without departing from the principles and purposes of the present application still fall within the protection scope of the present application.
Claims
1. A drain structure of an evaporator, characterized by The utility model relates to an evaporator (1) and a water pan. A main water leakage hole group (23) is arranged on the water pan, the evaporator (1) is arranged on the water pan and above the main water leakage hole group (23); and A drain groove (3) is arranged below the water pan, the drain groove (3) corresponds to the main water leakage hole group (23), the drain groove (3) is in a "V" shape, and a drain nozzle (31) communicating with the drain groove (3) is arranged below the "V" shape of the drain groove (3). The water pan comprises a downwardly inclined slope (21) and a water receiving plate (26), the bottom of the slope (21) is connected to the end of the water receiving plate (26) so as to form a "V" shape, the evaporator (1) is arranged on the slope (21) and inclined downwardly, and the main water leakage hole group (23) is arranged on the slope (21) and below the evaporator (1).
2. The drain structure of an evaporator according to claim 1, characterized by The front, rear and right side edges of the water receiving plate (26) and the front and rear edges of the slope (21) are provided with upward baffles (24), the water receiving plate (26) is arranged in an inclined manner, and the inclination direction is opposite to that of the evaporator (1) and the slope (21).
3. The drain structure of the evaporator according to claim 2, characterized by The front and rear edges of the main water leakage hole group (23) are arranged beyond the bottom of the evaporator (1), the main water leakage hole group (23) comprises a plurality of main water leakage holes arranged in a transverse direction, a gap is arranged between each main water leakage hole so as to form a support surface (27), and an auxiliary water leakage hole (22) is arranged on the support surface (27).
4. The drain structure of an evaporator according to claim 1, wherein The right side of the drain groove (3) is arranged in close contact with the lower part of the water pan.
5. The drain structure of an evaporator according to claim 1, wherein The drain nozzle (31) is arranged at the lowest position of the drain groove (3), and the upper part of the drain groove (3) is a downwardly sunken concave platform (33).
6. The drain structure of an evaporator according to claim 1, wherein The utility model further comprises an electric heating element (4), more than one wire clamp (5) is arranged in the drain groove (3), the electric heating element (4) is assembled in the drain groove (3) through the wire clamp (5), and the electric heating element (4) is in a "U" shape.
7. The drain structure of an evaporator according to claim 1, wherein The utility model further comprises a drain pipe (6), the water inlet of the drain pipe (6) communicates with the drain nozzle (31), and the electric heating element (4) extends into the drain pipe (6).
8. The drain structure of the evaporator according to claim 7, characterized by The extension length of the electric heating element (4) is flush with the bottom of the drain pipe (6).
9. The drain structure of the evaporator according to claim 8, characterized by The tail of the drain nozzle (31) is in a threaded structure.
10. The drain structure of the evaporator according to claim 8, characterized by