Base for preventing water seepage in wall-mounted air conditioner and wall-mounted air conditioner

By installing a water-cutting component at the bottom of the end plate of the air conditioner base, extending its vertical length to cut off the water droplet return path, the water leakage problem at the joint between the front frame of the indoor unit and the bottom of the base is solved, achieving the effect of preventing water seepage.

CN224261937UActive Publication Date: 2026-05-19SHANGHAI MITSUBISHI ELECTRIC&SHANGLING AIR CONDITIONER & ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI MITSUBISHI ELECTRIC&SHANGLING AIR CONDITIONER & ELECTRIC APPLIANCE CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

There is water leakage at the joint between the front frame of the indoor unit and the lower end of the base of the wall-mounted air conditioner, causing internal water seepage.

Method used

A base for preventing water seepage inside a wall-mounted air conditioner is designed. By setting a water-cutting component at the bottom of the end plate and extending its vertical length, the water droplet backflow path formed by the assembly gap between the water-cutting component and the water collection tray of the bracket is cut off, preventing water droplets from flowing back to the joint.

Benefits of technology

It effectively cuts off the water droplet backflow path, preventing water droplets from accumulating and flowing back to the joints due to capillary action, thus solving the water leakage problem and ensuring that the air conditioner does not leak water inside.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a base capable of preventing water seepage in a wall-mounted air conditioner and the wall-mounted air conditioner. The base comprises a base body and end plates located on the two sides of the base body. The end plate is buckled with a side plate of a support water collecting disc of the wall-mounted air conditioner, and the end plate and the side plate are matched to seal the two ends of the wall-mounted air conditioner. A water cutting component is arranged at the bottom end of the end plate, and the vertical length of the water cutting component is larger than a preset value so as to cut off a water drop backflow channel formed by an assembly gap between the water cutting component and the side plate of the support water collecting disc. The utility model solves the problem of water leakage at the seam of the front frame of the indoor unit and the lower end of the base.
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Description

Technical Field

[0001] This utility model relates to the field of wall-mounted air conditioner technology, and in particular to a base for preventing water seepage inside a wall-mounted air conditioner and the wall-mounted air conditioner itself. Background Technology

[0002] An air conditioner, also known as an air conditioning unit, is a device used to regulate and control parameters such as temperature, humidity, and airflow in the indoor environment of a building. Wall-mounted air conditioners are widely used in homes. A wall-mounted air conditioner consists of an indoor unit and an outdoor unit. The indoor unit generally includes a panel, the main body, the front frame, a drip tray, and a base. The base is a plastic structure at the rear of the unit that hangs on the wall, serving as the frame for the air conditioner. The main body includes an evaporator and fan blades surrounding it. The evaporator is responsible for reducing the pressure of the refrigerant from high pressure to low pressure, thereby lowering the refrigerant temperature and achieving a cooling effect on the air. The fan blades circulate the air and blow the cooled or heated air out of the air outlet at the front frame. The drip tray, located below the main body of the indoor unit, is fitted to the end plates of the base on both sides to seal both ends of the air conditioner, responsible for water collection and airflow.

[0003] However, there has been negative market feedback regarding this indoor unit, with water leakage observed at the lower joint between the front frame and the base. Utility Model Content

[0004] The purpose of this utility model is to provide a base and a wall-mounted air conditioner that prevent water seepage inside the unit, so as to solve the problem of water leakage at the lower joint between the front frame of the indoor unit and the base.

[0005] To solve the above problems, this utility model achieves its purpose through the following technical solution:

[0006] This utility model provides a base for preventing water leakage inside a wall-mounted air conditioner, comprising:

[0007] The base body has end plates on both sides; the end plates are fastened to the side plates of the water collection tray of the wall-mounted air conditioner bracket, and the two are used to seal the two ends of the wall-mounted air conditioner.

[0008] The bottom end of the end plate is provided with a water-cutting component. The vertical length of the water-cutting component is greater than a preset value, so as to cut off the water droplet return path formed by the assembly gap between the water-cutting component and the side plate of the support water collection tray.

[0009] Optionally, the water-cutting component includes a drainage section and a water-cutting section connected to each other. The drainage section is connected to the bottom end of the end plate and slopes downward toward the outside of the end plate; the water-cutting section extends in a vertical direction.

[0010] Optionally, the vertical length of the water-cutting component is the distance in the vertical direction between the bottom edge of the water-cutting part and the assembly gap.

[0011] Optionally, the vertical length is greater than or equal to 11 mm.

[0012] Optionally, the water-cutting component, the end plate, and the base body are integrated into one unit.

[0013] Optionally, the drainage section and the water-cutting section are integrated into one unit.

[0014] On the other hand, this utility model also provides a wall-mounted air conditioner, including: a base as described above to prevent water seepage inside the wall-mounted air conditioner; and an indoor unit body;

[0015] The base is matched with the indoor unit body and is used to support the indoor unit body;

[0016] The indoor unit includes an evaporator and fan blades surrounding the evaporator. The evaporator is used to cool or heat the air. The fan blades are used to circulate the air and blow out the cooled or heated gas.

[0017] A water collection tray is provided below the evaporator, and the side plates at both ends are engaged with the end plates of the base. The tray is used to receive and drain the condensate generated during the operation of the evaporator.

[0018] This utility model has at least the following technical effects:

[0019] This invention extends the vertical length of the water-cutting component, cutting off the water droplet return path formed by the assembly gap between the water-cutting component and the side plate of the bracket water collection tray. Due to the increased vertical length, even if capillary action causes water droplets to flow upwards after accumulating on the water-cutting component, the distance between the water droplet accumulation point and the assembly gap prevents them from reaching the water droplet return path. Therefore, the water droplets accumulated at this point drip directly onto the bracket water collection tray, thus cutting off the water droplet return path. This solves the problem of water droplets accumulating at this point and, under the influence of capillary action and the suction force generated by the fan blades, flowing back into the water collection tray and dripping onto the lower joint between the indoor unit's front frame and the base, causing leakage at this lower joint. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the flow path of condensate at the end of a wall-mounted air conditioner in the prior art;

[0021] Figure 2 for Figure 1 An enlarged structural diagram of part A, with the view orientation being the same as... Figure 1 The middle view is in the opposite direction;

[0022] Figure 3 This is a schematic diagram of the overall structure of the base provided in an embodiment of the present utility model;

[0023] Figure 4 An enlarged structural diagram of the water-cutting part of the base for preventing water seepage inside a wall-mounted air conditioner according to an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Base; 10-Base body; 11-End plate; 12-Water cutting component; 2-Evaporator; 20-Rear evaporator fins; 21-First front evaporator fins; 22-Second front evaporator fins; 23-Evaporator side plate; 3-Support water collection tray; 31-Side plate; 30-Support water collection tray body; 32-Outlet pipe; A23-Assembly gap; 121-Drainage part; 122-Water cutting part; 100-Base body; H-Vertical length. Detailed Implementation

[0026] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the base for preventing water leakage inside a wall-mounted air conditioner and the wall-mounted air conditioner itself, based on the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, intended only to facilitate and clearly illustrate the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0027] As described in the background section, there is a problem with the indoor unit, with poor market feedback and water leakage at the lower joint between the front frame and the base. Specifically, as follows... Figure 1 As shown, the indoor unit body includes an evaporator 2. The first front evaporator fin 21 of the evaporator 2 is located between the rear evaporator fin 20 and the second front evaporator fin 22. The first front evaporator fin 21 and the second front evaporator fin 22 form the main evaporator fins. Evaporator side plates 23 are respectively provided at both ends along the length direction of the evaporator 2.

[0028] The evaporator side plate 23 is interlocked with the evaporator fins and fastened with screws.

[0029] The base 1 includes a base body 10 and end plates 11 located at both ends of the base body 10; the support water collection tray 3 includes a support water collection tray body 30 and side plates 31 located at both ends of it; the support water collection tray body 30 is provided with a water outlet pipe 32 for draining accumulated water.

[0030] The bracket water collection tray 3 is located below the evaporator 2, and the two side plates 31 are interlocked and fixedly connected to the two end plates 11 of the base 1, and cooperate with each other to seal the two ends of the evaporator so that the two ends of the indoor unit are not exposed to air.

[0031] Please continue to refer to this. Figure 1 As shown, the normal water flow path when the indoor air conditioner or evaporator 2 is operating is as follows: Figure 1 As shown by the blue arrow, evaporator 2 produces condensate during operation. After the main evaporator fins produce condensate, the condensate flows along the evaporator side plate 23 to the support water collection pan 3 or drips directly onto the support water collection pan 3. The rear evaporator fins 20 produce condensate, which drips onto the mounting surface of the end plate 11 of the base 1 and flows through the mounting surface of the end plate 11 to the support water collection pan 3. It can be understood that the mounting surface is the boundary of the air passage side (the mounting surface separates the air passage side from the non-air passage side). The air passage side is defined by the mounting surface of the evaporator 2, the base 1, and the support water collection pan 3. The space formed by the evaporator 2, the base 1, and the support water collection pan body 30 is the air passage side, that is, the space where the fan blades are located is the air passage side.

[0032] Research has revealed abnormal water flow paths during the operation of indoor air conditioners or evaporators 2, such as... Figure 2 As indicated by the red arrow, water is not allowed to enter the air duct side. However, when the indoor air conditioner or evaporator 2 is operating, condensation will be generated on the copper pipe side of evaporator 2. The condensation drips down along the evaporator side plate 23 onto the mounting surface of the end plate 11 of the base 1, specifically onto the water-cutting component 12 below the end plate 11 of the base 1. Under the action of surface tension, the water droplets tend to accumulate at the three-sided angle on the back side of the water-cutting component 12. Since there are fan blades operating on the air duct side, they will draw the air from the outside of the mounting surface inward, while simultaneously carrying the accumulated water droplets inward. Furthermore, due to the end plate of the base 1... There is an assembly gap between the end plate 11 of the base 1 and the side plate 31 of the bracket water collection tray 3, and the assembly gap itself forms a complete passage from the water-cutting component 12 to the lower end joint of the indoor unit front frame and the base 1. Furthermore, since the assembly gap between the end plate 11 of the base 1 and the side plate 31 of the bracket water collection tray 3 is relatively small, capillary action will occur. That is, water droplets will enter this assembly gap and, due to capillary action, the liquid will flow backward in the assembly gap, flowing to the lower end joint of the indoor unit front frame and the base 1, and then dripping to the lower end joint of the indoor unit front frame and the base 1, thus causing a water leakage problem at this lower end joint.

[0033] In view of this, the present invention improves the structure of the base to cut off the abnormal water flow path mentioned above, so as to solve the problem of water leakage at the lower end joint between the front frame of the indoor unit and the base 1.

[0034] Specifically, such as Figure 3 and Figure 4 As shown, this embodiment provides a base 1 to prevent water seepage inside a wall-mounted air conditioner, a base body 10, and end plates 11 located on both sides of the base body 10; the end plates 11 are connected to the water collection tray of the wall-mounted air conditioner bracket (see reference). Figure 1 The side panels (as shown in label 3) are interlocked, and the two panels are fitted together to seal the two ends of the wall-mounted air conditioner so that no air enters at the two ends.

[0035] Please continue to refer to this. Figure 4 As shown, Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle, and the view direction is the same as... Figure 3 The view direction is opposite. A water-cutting component 12 is provided on the bottom end of the end plate 11. The vertical length H of the water-cutting component 12 is greater than a preset value, so as to cut off the water droplet return path (the abnormal water flow path mentioned above) formed by the assembly gap A23 between the water-cutting component 12 and the side plate of the support water collection tray.

[0036] Please continue to refer to this. Figure 4 As shown, the water-cutting component 12 includes a drainage section 121 and a water-cutting section 122 connected to each other. The drainage section 121 is connected to the bottom end of the end plate and slopes downwards towards the outside of the end plate to guide condensate droplets located on the outside of the end plate into the water collection tray of the support located below it. The water-cutting section 122 extends vertically, thereby keeping the water droplet collection point as far away as possible from the assembly gap A23, so that even under the action of the fan blades, it cannot reach the water collection point. Figure 4 The yellow arrow indicates the location of assembly gap A23, thus preventing further backflow through assembly gap A23.

[0037] In this embodiment, it can be understood that the vertical length H of the water-cutting component 12 is the distance in the vertical direction from the bottom edge of the water-cutting part 122 to the assembly gap A23.

[0038] Optionally, in this embodiment, the vertical length H is greater than or equal to 11 mm. The original vertical length was less than or equal to 7 mm. In this embodiment, the purpose of cutting off the water droplet return path can be achieved simply by extending the length of the water-cutting part 122 of the water-cutting component 12, thus saving costs.

[0039] It is understood that there may be two water droplet return paths, which can be two assembly gaps between the two end plates and the two side plates of the bracket water collection tray; or there may be one water droplet return path, which is only one assembly gap between one of the two end plates and one side plate of the bracket water collection tray. However, the water droplet return path can be cut off by extending the corresponding water cutting part 122. This invention is not limited to this.

[0040] Alternatively, please continue to refer to Figure 4 As shown, the water-cutting component 12, the end plate, and the base body 100 are integrated into one unit.

[0041] Alternatively, please continue to refer to Figure 4 As shown, the drainage part 121 and the water-cutting part 122 are integrated, which facilitates the preparation of the base and saves costs.

[0042] On the other hand, this utility model also provides a wall-mounted air conditioner, including: a base as described above for preventing water seepage inside the wall-mounted air conditioner; an indoor unit body; the base is matched with the indoor unit body for supporting the indoor unit body; the indoor unit body includes an evaporator and fan blades surrounded by the evaporator, the evaporator is used to cool or heat the air; the fan blades are used to circulate the air and blow out the cooled or heated gas; a bracket water collection tray, the bracket water collection tray is disposed below the evaporator, and the side plates at both ends are engaged with the end plates of the base for receiving and draining the condensate generated when the evaporator is operating.

[0043] This embodiment extends the vertical length of the water-cutting component, cutting off the water droplet return path formed by the assembly gap between the water-cutting component and the side plate of the support water collection tray. That is, due to the increased vertical length, even if capillary action occurs and the water droplets flow upwards after accumulating on the water-cutting component, they are unlikely to reach the water droplet return path because the point of accumulation is far from the assembly gap. Therefore, the water droplets accumulated at this point drip directly into the support water collection tray (e.g., ...). Figure 4 (As shown by the red arrow in the middle), this cuts off the water droplet return path, solving the problem that water droplets accumulate here and, under the action of capillary action and the adsorption force generated by the fan blades, flow back to the outer surface of the water collection tray of the bracket, and drip onto the lower joint between the front frame and the base of the indoor unit, thus causing water leakage at this lower joint.

[0044] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] In the description of this utility model, it should be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A base for preventing water leakage inside a wall-mounted air conditioner, characterized in that, include: The base body, and the end plates located on both sides of the base body; The end plate is fastened to the side plate of the water collection tray of the wall-mounted air conditioner, and the two work together to seal the two ends of the wall-mounted air conditioner. The bottom end of the end plate is provided with a water-cutting component. The vertical length of the water-cutting component is greater than a preset value, so as to cut off the water droplet return path formed by the assembly gap between the water-cutting component and the side plate of the support water collection tray.

2. The base for preventing water seepage inside a wall-mounted air conditioner as described in claim 1, characterized in that, The water-cutting component includes a flow-guiding part and a water-cutting part connected to each other. The flow-guiding part is connected to the bottom end of the end plate and is inclined downward toward the outside of the end plate; the water-cutting part extends in a vertical direction.

3. The base for preventing water seepage inside a wall-mounted air conditioner as described in claim 1, characterized in that, The vertical length of the water-cutting component is the distance in the vertical direction between the bottom edge of the water-cutting part and the assembly gap.

4. The base for preventing water seepage inside a wall-mounted air conditioner as described in claim 1, characterized in that, The vertical length is greater than or equal to 11 mm.

5. The base for preventing water seepage inside a wall-mounted air conditioner as described in claim 1, characterized in that, The water-cutting component, the end plate, and the base body are integrated into one unit.

6. The base for preventing water seepage inside a wall-mounted air conditioner as described in claim 2, characterized in that, The drainage section and the water-cutting section are integrated into one unit.

7. A wall-mounted air conditioner, characterized in that, include: The base for preventing water seepage inside the wall-mounted air conditioner as described in any one of claims 1 to 6; the indoor unit body; The base is matched with the indoor unit body and is used to support the indoor unit body; The indoor unit body includes an evaporator and fan blades surrounded by the evaporator, the evaporator being used to cool or heat the air; Fan blades are used to circulate air and blow out cooled or heated gas; A bracket water collection tray is provided below the evaporator, and the side plates at both ends are engaged with the end plates of the base. The tray is used to receive and drain the condensate generated during the operation of the evaporator.