Through-wall air conditioner

Abstract

The utility model belongs to the technical field of air conditioning equipment, and particularly provides a through-wall air conditioner. The utility model aims to solve the problem that the performance of the existing through-wall air conditioner is easily influenced due to freezing of a base plate during heating in winter. Therefore, the through-wall air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger, a chassis and an electric heating device. The base plate is arranged below the indoor heat exchanger and the outdoor heat exchanger, an outdoor water collecting tank and a drainage hole are formed in the portion, below the outdoor heat exchanger, of the base plate, and the drainage hole is used for draining water in the outdoor water collecting tank. The electric heating device is arranged on the inner side of the base plate and located below the outdoor heat exchanger so as to heat condensate water falling from the outdoor heat exchanger and prevent the condensate water from freezing or ice formed by melting the condensate water. The through-wall air conditioner with the structure overcomes the technical problems.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning equipment technical field, specifically provides a wall -penetrating air conditioner. BACKGROUND

[0002] The wall -penetrating air conditioner is a kind of air conditioner integrated machine that can be installed on window, can also be installed to the hole of the wall, it includes chassis, and the compressor, outdoor heat exchanger, outdoor fan, indoor heat exchanger, indoor fan, throttling component (for example electronic expansion valve) etc.

[0003] The wall -penetrating air conditioner is used as evaporator when heating in winter, and condensate water is generated in the working process thereof.Condensate water is discharged to the outside via the drain hole on the chassis.But, due to the temperature of winter is too low, it is easy to cause condensate water to freeze on the chassis, block drain hole, cannot discharge.If this continues, the thickness of ice layer will be more and more big, not only can affect outdoor heat exchanger and related pipeline and outside heat exchange;And ice layer can also contact outdoor fan, increase the noise when outdoor fan operates, even can make the outdoor fan that impact to ice layer fragmentation. SUMMARY

[0004] One purpose of the utility model is to solve the problem that the existing wall -penetrating air conditioner is easy to freeze on chassis and affect its performance when heating in winter.

[0005] To achieve the above-mentioned purpose, the utility model provides a wall -penetrating air conditioner, comprising:

[0006] Indoor heat exchanger;

[0007] Outdoor heat exchanger;

[0008] Chassis, set down the indoor heat exchanger and the outdoor heat exchanger, the part of the chassis below the outdoor heat exchanger is provided with outdoor water collecting tank and drain hole, and the drain hole is used to drain water in the outdoor water collecting tank;

[0009] Electric heating device, set in the inside of the chassis and below the outdoor heat exchanger, to heat the condensate water falling from the outdoor heat exchanger, prevent the condensate water from freezing or melt the ice formed by the condensate water.

[0010] Optionally, the electric heating device is offset to one side of the outdoor water collecting tank, to melt the ice in the outdoor water collecting tank or prevent the water in the outdoor water collecting tank from freezing by the way of heat conduction.

[0011] Optionally, the electric heating device is the sheet structure that adheres on the chassis as a whole.

[0012] Optionally, the electric heating device is in a concave shape or a dumbbell shape as a whole, so that the electric heating device comprises a concave portion and a convex portion; the outdoor water collecting tank comprises a wide portion and a narrow portion, a part of the wide portion is embedded in the concave portion, and the narrow portion is aligned with the convex portion.

[0013] Optionally, the drain hole is arranged in the narrow portion; and / or the wall -through air conditioner further comprises a drain valve for controlling opening and closing of the drain hole.

[0014] Optionally, the electric heating device comprises an electric heating belt abutting against the bottom plate and a fixed film located on a side of the electric heating belt away from the bottom plate, and the fixed film is attached to the bottom plate in a manner of adhesion.

[0015] Optionally, the fixed film is a sheet structure made of a heat-conducting material.

[0016] Optionally, the bottom plate is provided with an outdoor sink, and the electric heating device is laid in the outdoor sink; and / or the outdoor water collecting tank is formed in the outdoor sink.

[0017] Optionally, the electric heating device is gap-fitted with the outdoor heat exchanger to prevent the outdoor heat exchanger from excessively absorbing heat generated by the electric heating device.

[0018] Optionally, the wall -through air conditioner further comprises a sleeve, and the indoor heat exchanger, the outdoor heat exchanger, the bottom plate and the electric heating device are arranged in the sleeve; a gap is defined between a bottom wall of the sleeve and the bottom plate; an outer side wall of the sleeve or an outer side end of the bottom wall is provided with a water outlet hole in communication with the gap.

[0019] Based on the foregoing description, those skilled in the art can understand that, in the technical solutions of the foregoing wall -through air conditioner, the electric heating device is arranged on the inner side of the bottom plate below the outdoor heat exchanger to heat the condensed water falling from the outdoor heat exchanger, effectively preventing the condensed water from freezing or effectively melting the ice formed by the condensed water, ensuring that the condensed water can be smoothly discharged through the drain hole, and further ensuring the performance of the wall -through air conditioner in winter heating, and avoiding the impact of the outdoor fan on the ice layer.

[0020] Further, by offsetting the electric heating device to one side of the outdoor water collecting tank, the ice in the outdoor water collecting tank is melted by heat conduction or the water in the outdoor water collecting tank is prevented from freezing, while avoiding the thickness of the position of the electric heating device on the bottom plate being too large and occupying too much space on the bottom plate.

[0021] Further, by arranging the electric heating device as a sheet structure attached to the bottom plate as a whole, the fixation of the electric heating device is facilitated, and the contact area of the electric heating device and the bottom plate is ensured.

[0022] Further, by setting the electric heating device as a whole in a concave shape or a dumbbell shape, the electric heating device is formed with a concave portion and a convex portion. By embedding a part of the wide portion of the outdoor water collecting tank into the concave portion, and aligning the narrow portion of the outdoor water collecting tank with the convex portion, the heat transfer area between the outdoor water collecting tank and the electric heating device is increased, and thus the heat conduction efficiency of the electric heating device to the outdoor water collecting tank is improved. In this way, the ice in the outdoor water collecting tank can be quickly melted.

[0023] Further, by setting the drain hole in the narrow portion, the water in the outdoor water collecting tank can be discharged as much as possible.

[0024] Further, by making the electric heating device include an electric heating belt abutting against the bottom plate and a fixing film located on the side of the electric heating belt away from the bottom plate, and making the fixing film attached to the bottom plate in a bonding manner, the installation of the electric heating device is facilitated.

[0025] Further, by setting the fixing film as a sheet structure made of a heat-conducting material, the heat generated by the electric heating belt can be conducted outward through the fixing film, and the heating area is larger.

[0026] Further, by laying the electric heating device in the outdoor sink formed on the bottom plate, the electric heating device can carry part of the condensed water, and thus can directly heat the condensed water or the ice formed by the condensed water, and the heating efficiency is higher.

[0027] Further, by making the electric heating device gap-fit with the outdoor heat exchanger, the electric heating device and the outdoor heat exchanger are isolated by air, preventing the outdoor heat exchanger from absorbing too much heat generated by the electric heating device, which affects the heating effect of the electric heating device on the condensed water or ice.

[0028] Further, by setting the sleeve shell sleeved outside the indoor heat exchanger, the outdoor heat exchanger, the bottom plate and the electric heating device, the wall-through air conditioner is more beautiful as a whole, and the indoor heat exchanger, the outdoor heat exchanger, the bottom plate and the electric heating device are also prevented from being damaged by external forces during use. By defining a gap between the bottom wall of the sleeve shell and the bottom plate, and setting a water outlet hole on the outside end of the outer side wall or the bottom wall of the sleeve shell, which communicates with the gap, it is ensured that the condensed water of the wall-through air conditioner can be discharged through the drain hole, the gap and the water outlet hole. Moreover, the electric heating device can also heat the condensed water or ice between the sleeve shell and the bottom plate to prevent icing.

[0029] Other beneficial effects of the present utility model will be described in detail in the following with reference to the drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the present application, hereinafter, some embodiments of the present application will be described with reference to the accompanying drawings. It should be understood by those skilled in the art that the components or parts indicated by the same reference signs in different drawings are the same or similar; the drawings of the present application are not necessarily drawn to scale. In the drawings:

[0031] Figure 1 is a structural exploded view of the wall-penetrating air conditioner in some embodiments of the present application (first axonometric view angle);

[0032] Figure 2 is a structural exploded view of the wall-penetrating air conditioner in some embodiments of the present application (second axonometric view angle);

[0033] Figure 3 is an axonometric view of the wall-penetrating air conditioner in some embodiments of the present application (first axonometric view angle);

[0034] Figure 4 is an axonometric view of the wall-penetrating air conditioner in some embodiments of the present application (second axonometric view angle);

[0035] Figure 5 is Figure 3 a view of the wall-penetrating air conditioner in which the casing is hidden;

[0036] Figure 6 is Figure 4 a view of the wall-penetrating air conditioner in which the casing is hidden;

[0037] Figure 7 is Figure 6 a view of the wall-penetrating air conditioner in which the outdoor heat exchanger is hidden;

[0038] Figure 8 is Figures 1 to 6 an axonometric view of the chassis;

[0039] Figure 9 is Figure 1 and Figure 2 an axonometric view of the electric heating device;

[0040] Figure 10 is an assembly effect view of the chassis and the electric heating device in some embodiments of the present application;

[0041] Figure 11 is Figure 10 a top view of the chassis and the electric heating device.

[0042] Explanation of reference signs:

[0043] 001, wall-penetrating air conditioner;

[0044] 110, indoor heat exchanger; 120, outdoor heat exchanger; 130, compressor; 140, middle shell; 150, inner shell; 160, indoor fan; 170, outdoor fan;

[0045] 200, base pan; 210, outdoor sump; 211, wide portion; 212, narrow portion; 220, drain hole; 230, outdoor sink;

[0046] 300, electric heating device; 301, inner recess; 302, protrusion; 310, electric heating belt; 320, fixed film;

[0047] 400, drain valve;

[0048] 500, cover shell; 501, water outlet hole; 502, gap; 510, support rib. DETAILED DESCRIPTION

[0049] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and the part of the embodiments are intended to explain the technical principles of the present application, rather than to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the protection scope of the present application.

[0050] It should be noted that, in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the corresponding device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0051] Further, it needs to be further pointed out that, in the description of the utility model, unless another explicit provision and limitation, the term "mounting", "connecting", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through the intermediate medium, also can be two elements inside the communication. For those skilled in the art, the above-mentioned terms can be understood according to the specific meaning in the utility model. For example, the term "mounting", "connecting", "connection" and "fixed" without special description, specifically can be bolted connection, screw connection, welding, insertion, riveting, fusion, clamping and any feasible connection form.

[0052] In addition, it needs to be further pointed out that, in the description of the utility model, the term "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" that a certain target (for example, evaporator, air, condenser, etc.) has, the lower the "heat" it has, the lower the "cold" it has, the higher the "heat" it has. A certain target absorbs "cold" while releasing "heat", and releases "cold" while absorbing "heat". A certain target saves "cold" or "heat" to keep the target at the current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target (for example, evaporator) absorbs heat while refrigerating.

[0053] As shown in Figures 1 to 7 In some embodiments of the utility model, the through-wall air conditioner 001 includes an indoor heat exchanger 110, an outdoor heat exchanger 120, a bottom plate 200 and an electric heating device 300.

[0054] As shown in Figure 8 The bottom plate 200 is arranged below the indoor heat exchanger 110 and the outdoor heat exchanger 120, and the part of the bottom plate 200 below the outdoor heat exchanger 120 is provided with an outdoor water collecting tank 210 and a drain hole 220, and the drain hole 220 is used to drain the water in the outdoor water collecting tank 210.

[0055] As shown in Figure 1 , Figure 2 And Figure 7 The electric heating device 300 is arranged on the inner side of the bottom plate 200 and below the outdoor heat exchanger 120 to heat the condensed water falling from the outdoor heat exchanger 120, preventing the condensed water from freezing or the ice formed by the melted condensed water from freezing.

[0056] The person skilled in the art can understand that the utility model discloses an electric heating device 300 is arranged below the outdoor heat exchanger 120 on the inner side of the bottom disc 200 to heat the condensed water falling from the outdoor heat exchanger 120, which effectively prevents the condensed water from freezing or effectively melts the ice formed by the condensed water, ensures that the condensed water can be smoothly discharged through the drain hole 220, and further ensures the performance of the through-wall air conditioner 001 when heating in winter.

[0057] As Figure 1 , Figure 2 , Figures 5 to 7 illustrated, in some embodiments of the utility model, the through-wall air conditioner 001 further includes a compressor 130 and a throttling device (not shown in the figure), so that the indoor heat exchanger 110, the outdoor heat exchanger 120, the compressor 130 and the throttling device constitute the refrigerant circulation system of the through-wall air conditioner 001. The compressor 130 is used to drive the refrigerant to flow through the throttling device and circulate between the indoor heat exchanger 110 and the outdoor heat exchanger 120, so that the through-wall air conditioner 001 cools or heats the indoor through the indoor heat exchanger 110.

[0058] Among them, the throttling device can include an electronic expansion valve and / or a capillary tube.

[0059] It should be noted that since the working principle of the through-wall air conditioner 001 for refrigeration and heating by means of the indoor heat exchanger 110, the outdoor heat exchanger 120, the compressor 130 and the throttling device is prior art and is well known to those skilled in the art, the present application will not be described in detail.

[0060] As Figure 1 , Figure 2 , Figures 5 to 7 illustrated, in some embodiments of the utility model, the through-wall air conditioner 001 can further include a middle shell 140, an inner shell 150, an indoor fan 160 and an outdoor fan 170.

[0061] Among them, the middle shell 140 is fixedly connected with the bottom disc 200, and the middle shell 140 can also be used to fix the indoor heat exchanger 110 and / or the outdoor heat exchanger 120.

[0062] Among them, the inner shell 150 is installed on the inner side of the middle shell 140 and is used to shield the indoor heat exchanger 110. And the inner shell 150 is provided with an inner return air inlet and an inner air inlet, so that the air flows to the indoor heat exchanger 110 through the inner return air inlet and flows out through the inner air inlet, thereby realizing the refrigeration or heating of the air by the indoor heat exchanger 110.

[0063] Among them, the indoor fan 160 is installed on the side of the middle shell 140 close to the inner shell 150 to drive the indoor air to enter from the inner return air inlet and flow out from the inner air inlet after flowing through the indoor heat exchanger 110.

[0064] As can be seen from Figure 1 , the indoor fan 160 can be a centrifugal fan. The middle shell 140 cooperates with the inner shell 150 to define an air duct adapted to the centrifugal fan. Moreover, the side of the middle shell 140 facing the indoor fan 160 can constitute a volute adapted to the centrifugal fan.

[0065] In addition, in other embodiments of the present application, the indoor fan 160 can be set as any other feasible fan, such as an axial fan, an inclined flow fan, a cross flow fan, etc., according to the needs of the skilled in the art.

[0066] The outdoor fan 170 is installed on the side of the middle shell 140 away from the inner shell 150 to drive outdoor air to flow through the outdoor heat exchanger 120, so that the outdoor heat exchanger 120 provides heat or cold to the refrigerant circulation system.

[0067] As can be seen from Figure 2 , Figure 5 , and Figure 7 , the outdoor fan 170 can be an axial fan.

[0068] In addition, in other embodiments of the present application, the outdoor fan 170 can be set as any other feasible fan, such as a centrifugal fan, an inclined flow fan, a cross flow fan, etc., according to the needs of the skilled in the art.

[0069] Further, although not shown in the drawings, in some embodiments of the present application, a motor is installed in the middle shell 140 to drive the indoor fan 160 and the outdoor fan 170 to rotate by the motor.

[0070] Optionally, the motor is a double-output-shaft motor, so that the indoor fan 160 and the outdoor fan 170 are coaxially fixed to the motor, thereby the indoor fan 160 and the outdoor fan 170 can be simultaneously driven to rotate by one motor. In this way, not only the cost is reduced, but also the volume and weight of the whole through-wall air conditioner 001 are reduced.

[0071] As shown in Figure 8 , in some embodiments of the present application, the outdoor sink 230 is provided on the bottom plate 200, and the outdoor water collecting tank 210 is formed in the outdoor sink 230. Moreover, the projection of the outdoor heat exchanger 120 on the bottom plate 200 is located in the outdoor sink 230, so that the condensed water from the outdoor heat exchanger 120 falls into the outdoor sink 230 and is gathered into the outdoor water collecting tank 210.

[0072] Continuing to refer to Figure 8 , in some embodiments of the present application, the drain hole 220 is provided on the bottom wall of the outdoor water collecting tank 210, so that the water in the outdoor water collecting tank 210 can be as much as possible drained.

[0073] Furthermore, the bottom wall of the outdoor water collection tank 210 can be tilted downwards towards the drain hole 220 so that the water in the outdoor water collection tank 210 can be drained as much as possible.

[0074] Continue reading Figure 8 In some embodiments of this utility model, the outdoor water collection tank 210 includes a wide portion 211 and a narrow portion 212, and the drain hole 220 is disposed in the narrow portion 212.

[0075] like Figures 9 to 11 As shown, in some embodiments of this utility model, the electric heating device 300 is generally U-shaped or dumbbell-shaped, so that the electric heating device 300 includes a concave portion 301 and a protruding portion 302. Furthermore, a portion of the wide portion 211 is embedded in the concave portion 301, and the narrow portion 212 is aligned with the protruding portion 302.

[0076] Those skilled in the art will understand that by configuring the electric heating device 300 as a whole in a U-shape or dumbbell shape, the electric heating device 300 forms a concave portion 301 and a protruding portion 302. By embedding a portion of the wide portion 211 of the outdoor water collection tank 210 into the concave portion 301, and aligning the narrow portion 212 of the outdoor water collection tank 210 with the protruding portion 302, the heat transfer area between the outdoor water collection tank 210 and the electric heating device 300 is increased, thereby improving the heat conduction efficiency of the electric heating device 300 to the outdoor water collection tank 210. In this way, the ice in the outdoor water collection tank 210 can be melted quickly.

[0077] like Figures 9 to 11 As shown, in some embodiments of this utility model, the electric heating device 300 is offset to one side of the outdoor water collection tank 210 to melt the ice in the outdoor water collection tank 210 or prevent the water in the outdoor water collection tank 210 from freezing by means of heat conduction. At the same time, it also avoids the thickness of the position where the electric heating device 300 is located on the chassis 200 being too large, thus occupying too much space on the chassis.

[0078] like Figures 9 to 11 As shown, in some embodiments of this utility model, the electric heating device 300 is generally a sheet-like structure attached to the chassis 200. Specifically, the electric heating device 300 includes an electric heating band 310 that abuts against the chassis 200 and a fixing film 320 located on the side of the electric heating band 310 away from the chassis 200. The fixing film 320 is attached to the chassis 200 by adhesive.

[0079] Those skilled in the art will understand that the above-described structure of the electric heating device 300 facilitates its installation.

[0080] Further, the fixing film 320 can be a sheet structure made of a heat-conductive material, so that the heat generated by the electric heating belt 310 can be conducted outward through the fixing film 320, and the heating area is larger.

[0081] The fixing film 320 can be specifically an aluminum foil film, a copper sheet, a tin paper, etc.

[0082] As shown in Figure 10 and Figure 11 , in some embodiments of the utility model, the electric heating device 300 is laid in the outdoor sink 230, so that the electric heating device 300 can carry part of the condensed water, and thus can directly heat the condensed water or the ice formed by the condensed water, and the heating efficiency is higher.

[0083] Further, although it is not shown in the figure, in some embodiments of the utility model, the electric heating device 300 is gap-fitted with the outdoor heat exchanger 120, so as to insulate the electric heating device 300 and the outdoor heat exchanger 120 through air, prevent the outdoor heat exchanger 120 from absorbing too much heat generated by the electric heating device 300, and affect the heating effect of the electric heating device 300 on the condensed water or ice.

[0084] As shown in Figure 1 , Figure 2 and Figure 7 , in some embodiments of the utility model, the through-wall air conditioner 001 further comprises a drain valve 400 for controlling the opening and closing of the drain hole 220. The drain valve 400 is installed into the narrow part 212 to improve the space utilization of the through-wall air conditioner 001.

[0085] As shown in Figures 1 to 4 , in some embodiments of the utility model, the through-wall air conditioner 001 further comprises a sleeve 500, and the indoor heat exchanger 110, the outdoor heat exchanger 120, the bottom plate 200 and the electric heating device 300 are all arranged in the sleeve 500.

[0086] As can be understood by those skilled in the art, by arranging the sleeve 500 outside the indoor heat exchanger 110, the outdoor heat exchanger 120, the bottom plate 200 and the electric heating device 300, the through-wall air conditioner 001 is more beautiful as a whole, and the indoor heat exchanger 110, the outdoor heat exchanger 120, the bottom plate 200 and the electric heating device 300 and other components are also prevented from being damaged by external force during use.

[0087] As can be seen from Figure 4 , the left and right sides of the outdoor heat exchanger 120 and the left and right side walls of the sleeve 500 have a large gap 502 therebetween to form an outdoor air return port, so that air flows through the outdoor heat exchanger 120 under the action of the outdoor fan 170, and provides heat or cold to the outdoor heat exchanger 120.

[0088] As Figure 4 shown in some embodiments of the present application, a gap 502 is defined between the bottom wall of the sleeve 500 and the bottom plate 200, and a water outlet hole 501 is arranged on the outer side end of the outer side wall or the bottom wall of the sleeve 500 and communicates with the gap 502.

[0089] As Figure 1 , Figure 2 and Figure 4 shown in some embodiments of the present application, a support rib 510 is arranged on the inner bottom wall of the sleeve 500 to support the bottom plate 200, and thus a gap 502 is formed between the bottom wall of the sleeve 500 and the bottom plate 200.

[0090] As can be understood by those skilled in the art, by defining a gap 502 between the bottom wall of the sleeve 500 and the bottom plate 200, and arranging a water outlet hole 501 on the outer side end of the outer side wall or the bottom wall of the sleeve 500 and communicating with the gap 502, it is ensured that the condensate water of the through-wall air conditioner 001 can be discharged through the drain hole 220, the gap 502 and the water outlet hole 501. And the electric heating device 300 can also heat the condensate water or ice between the sleeve 500 and the bottom plate 200 to prevent icing.

[0091] Optionally, the bottom plate 200 and the components thereon can be directly placed on the support rib 510 in the sleeve 500 to facilitate the installation of the through-wall air conditioner 001. Specifically, when installing the through-wall air conditioner 001, the sleeve 500 can be installed in the hole penetrating through the wall or on the window first, and then the bottom plate 200 and the components thereon can be installed in the sleeve 500.

[0092] It should be noted that in the description of the present application, both the terms "condensate water" and "water" appear at the same time in order to make it easier for those skilled in the art to understand the technical solution of the present application. Among them, the term "condensate water" is intended to explain the cause of the water in the through-wall air conditioner 001, which comes from condensation. The term "water" is intended to describe the characteristics related to the freezing, thawing and drainage of the condensate water.

[0093] Based on the foregoing description, those skilled in the art can understand that the through-wall air conditioner 001 of the present application can heat the bottom plate 200 by the electric heating device 300 when heating in winter, and melt the ice on the upper side of the bottom plate 200 and the lower side of the bottom plate 200, or prevent the water on the upper and lower sides of the bottom plate 200 from freezing, so that the condensate water left on the outdoor heat exchanger 120 can flow out through the drain hole 220 on the bottom plate 200, the gap 502 between the bottom plate 200 and the sleeve 500 and the water outlet hole 501 on the sleeve 500. At the same time, it also avoids the impact of the outdoor fan 170 to the ice layer.

[0094] Further, although not shown in the drawings, in some embodiments of the present application, the through-wall air conditioner 001 can further include an outdoor temperature sensor to detect the outdoor temperature through the outdoor temperature sensor, and to energize the electric heating device 300 when the outdoor temperature is lower than a preset temperature (e.g., 2℃, 1℃, -1℃, -2℃, -5℃, etc.).

[0095] So far, the technical scheme of the present application has been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Without deviating from the technical principles of the present application, those skilled in the art can disassemble and combine the technical schemes in the above-described embodiments, or make equivalent changes or replacements to the related technical features, and any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A wall-through type air conditioner, characterized by comprising: The wall-through type air conditioner comprises: an indoor heat exchanger; an outdoor heat exchanger; a bottom plate arranged below the indoor heat exchanger and the outdoor heat exchanger, a portion of the bottom plate below the outdoor heat exchanger is provided with an outdoor water collecting tank and a drain hole for draining water in the outdoor water collecting tank; an electric heating device arranged inside the bottom plate and below the outdoor heat exchanger to heat the condensed water falling from the outdoor heat exchanger, prevent the condensed water from freezing or thawing the ice formed by the condensed water.

2. The wall-through type air conditioner according to claim 1, wherein the electric heating device is offset to one side of the outdoor water collecting tank to thaw the ice in the outdoor water collecting tank or prevent the water in the outdoor water collecting tank from freezing by means of heat conduction.

3. The wall-through type air conditioner according to claim 2, wherein the electric heating device is in the form of a sheet attached to the bottom plate as a whole.

4. The wall-through type air conditioner according to claim 3, wherein the electric heating device is in the form of a concave shape or a dumbbell shape as a whole, so that the electric heating device comprises a concave portion and a convex portion; the outdoor water collecting tank comprises a wide portion and a narrow portion, a portion of the wide portion is embedded in the concave portion, and the narrow portion is aligned with the convex portion.

5. The wall-through type air conditioner according to claim 4, wherein the drain hole is arranged in the narrow portion; and / or the wall-through type air conditioner further comprises a drain valve for controlling the opening and closing of the drain hole.

6. The wall-through type air conditioner according to any one of claims 1 to 5, wherein the electric heating device comprises an electric heating belt abutting against the bottom plate and a fixing film on a side of the electric heating belt away from the bottom plate, the fixing film is attached to the bottom plate by means of adhesion.

7. The wall-through type air conditioner according to claim 6, wherein the fixing film is in the form of a sheet made of a heat-conductive material.

8. The wall-through type air conditioner according to any one of claims 1 to 5, wherein an outdoor sink is arranged on the bottom plate, the electric heating device is laid in the outdoor sink; and / or the outdoor water collecting tank is formed in the outdoor sink.

9. The wall-through type air conditioner according to any one of claims 1 to 5, wherein the electric heating device is gap-fitted with the outdoor heat exchanger to prevent the outdoor heat exchanger from excessively absorbing heat generated by the electric heating device.

10. The wall-through type air conditioner according to any one of claims 1 to 5, wherein the wall-through type air conditioner further comprises a casing, the indoor heat exchanger, the outdoor heat exchanger, the bottom plate and the electric heating device are arranged in the casing; a gap is defined between a bottom wall of the casing and the bottom plate; an outer side wall of the casing or an outer side end of the bottom wall is provided with a water outlet hole in communication with the gap.

Images