Water pan assembly, heat exchanger assembly and air conditioning device

Abstract

According to the water pan assembly arranged below the heat exchanger, the heat exchanger assembly and the air conditioning device, the water pan assembly can fully collect condensate water of the heat exchanger in a low-temperature environment and discharge the condensate water, and the electric heating pipe prevents the interior of the water pan assembly from freezing through heating. The water pan assembly comprises a water pan main body, a water pan bending part, a water pan extending part, an electric heating pipe and a water outlet. And the water pan main body is arranged below the heat exchanger. And the water pan bending part is formed by bending one end of the water pan main body. And the water pan extension part is formed by bending the extension end of the water pan bending part and is parallel to the water pan main body. And the electric heating pipe is arranged along the water pan main body, the water pan bending part and the water pan extending part. And an opening of the water outlet is formed in the water pan extension part.

Description

Technical Field

[0001] This application relates to the field of low-temperature heating technology, specifically to a water receiving pan assembly disposed below a heat exchanger, a heat exchanger assembly having the water receiving pan assembly, and an air conditioning device having the heat exchanger assembly. Background Technology

[0002] When outdoor temperatures are low, modular air conditioners often use defrost mode to prevent the outdoor unit from icing up. In extremely low temperatures, heat pumps alone cannot guarantee that the outdoor unit will not ice up during defrost / heating mode. Once ice forms, the fan blades of the outdoor unit, operating at high speed, are prone to colliding with the ice.

[0003] Currently, air conditioners are generally equipped with electric heating elements for auxiliary defrosting. Split-type air conditioners have electric heating elements installed on the outdoor unit. After the electric heating element defrosts, the condensate drains directly from the bottom of the chassis.

[0004] Because the window unit of a modular air conditioner is embedded in the wall, the condensate cannot be drained directly from the bottom of the chassis after the electric heating element installed in the air duct defrosts. Therefore, defrosting cannot completely remove the ice, leading to ice buildup and a risk of the fan blades colliding with and freezing. Furthermore, the high temperature of the electric heating element can easily cause the fan blades above it or the plastic air duct guide ring to melt, creating a safety hazard. Utility Model Content

[0005] This application aims to provide a water tray assembly disposed below a heat exchanger, a heat exchanger assembly, and an air conditioning unit, so as to at least solve or alleviate some of the problems existing in the prior art of integrated air conditioning.

[0006] The first aspect of this utility model provides a water receiving tray assembly disposed below a heat exchanger, including a water receiving tray body, a water receiving tray bending portion, a water receiving tray extension portion, an electric heating tube, and a drain outlet. The water receiving tray body is disposed below the heat exchanger. The water receiving tray bending portion is formed by bending one end of the water receiving tray body. The water receiving tray extension portion is formed by bending the extension end of the water receiving tray bending portion and is parallel to the water receiving tray body. The electric heating tube is disposed along the water receiving tray body, the water receiving tray bending portion, and the water receiving tray extension portion. The drain outlet opening is located in the water receiving tray extension portion.

[0007] Optionally, the water tray assembly further includes a protruding portion. The protruding portion extends at least along the length of the water tray body or along the length of the water tray bend, and protrudes from the bottom surface of the water tray body or the water tray bend. The height of the protruding portion is at least greater than the diameter of the electric heating element. The electric heating element extends to both sides of the protruding portion.

[0008] Optionally, the electric heating tube extends along the drain outlet to the end of the water tray extension and bends away from the water tray extension.

[0009] Optionally, the water tray assembly also includes an electric heating element fixing member. The electric heating element fixing member is fixedly disposed on both sides of the protrusion portion in a manner that spans across the protrusion portion.

[0010] Optionally, the electric heating tube fixing component is provided at the convex portion corresponding to the main body of the water receiving tray and the bend of the water receiving tray.

[0011] A second aspect of this utility model provides a heat exchanger assembly, including a heat exchanger composed of heat exchange tubes and fins. A water receiving tray assembly is disposed below the heat exchanger with the water receiving tray body corresponding to the heat exchange tubes.

[0012] Optionally, the heat exchanger assembly also includes a drain valve. The drain valve corresponds to a drain outlet.

[0013] Optionally, the heat exchanger assembly also includes a chassis and a chassis recess. The chassis is located on the side opposite the drain valve across the drain port. The chassis recess is located on the bottom surface of the chassis.

[0014] The third aspect of this utility model provides an air conditioning device, including a compressor, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger, and an outdoor fan arranged corresponding to the outdoor heat exchanger, which are connected sequentially along a refrigerant pipe and are mounted on the same chassis. It also includes the aforementioned water collection tray assembly, which is arranged below the outdoor heat exchanger.

[0015] This utility model also provides an air conditioning device, including a compressor, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger, and an outdoor fan corresponding to the outdoor heat exchanger, which are connected sequentially along a refrigerant pipe and installed on the same chassis. The outdoor heat exchanger uses the above-mentioned heat exchanger assembly and is installed in the wall. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the water receiving tray assembly in an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the water receiving tray in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the air conditioner chassis in this embodiment of the present invention when a water tray assembly is installed.

[0019] Figure 4 This is a schematic diagram of the air conditioning device, including the outdoor heat exchanger, in an embodiment of this utility model.

[0020] Figure 5 This is a structural schematic diagram of the electric heating tube fixing component in an embodiment of this utility model.

[0021] Figure 5 a is a front view of the electric heating tube fixing component in this embodiment of the utility model.

[0022] Figure 5 b is a side view of the electric heating tube fixing component in the embodiment of this utility model.

[0023] Figure 6 This is a schematic diagram of the air conditioner chassis without the water tray assembly in this embodiment of the present invention.

[0024] Figure label:

[0025] 100. Drain tray assembly; 110. Drain tray; 111. Drain tray body; 112. Drain tray bending section; 113. Drain tray extension section; 120. Electric heating element; 120a. Inner section; 120b. Outer section; 121. Electric heating element fixing component; 130. Drain outlet; 140. Protrusion;

[0026] 200. Outdoor heat exchanger; 201. Outdoor fan;

[0027] 300. Heat exchanger assembly; 301. Heat exchange tube; 302. Drain valve; 303. Chassis. Detailed Implementation

[0028] It should be noted that the following will use examples to illustrate the working principle, features and advantages of the water tray assembly, heat exchanger assembly and air conditioning unit according to this application. However, it should be understood that all descriptions are given for illustrative purposes only and should not be construed as limiting this application in any way.

[0029] Furthermore, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the various figures, this application still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle, thereby obtaining more other embodiments of this application that may not be directly mentioned herein.

[0030] It should be noted that, in this embodiment of the invention, a modular air conditioner is used as an example, in which the window unit is embedded in the wall, meaning the heat exchanger is located inside the wall. The water tray assembly in this embodiment can also be used in split-type air conditioners; this invention does not limit its application in this regard.

[0031] <Equipment Composition>

[0032] Figure 1 This is a structural schematic diagram of the water receiving tray assembly 100 in an embodiment of this utility model. (Reference) Figure 1 The present invention provides a heat exchanger 200 installed on the outdoor side. Figure 1 The drip tray assembly 100 (not shown in the image) includes a drip tray 110 and an electric heating element 120. The drip tray 110 is provided with a drain outlet 130. The drip tray 110 can collect condensate from the outdoor heat exchanger 200 and external condensate, and discharge it from the drain outlet 130. The electric heater can prevent the condensate collected in the drip tray 110 from freezing.

[0033] The structure of each component of the water receiving tray assembly 100 in this embodiment will be described below with reference to the accompanying drawings.

[0034] <Water Tray 110>

[0035] Figure 2 This is a schematic diagram of the water receiving tray 110 in the embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of an air conditioning unit, including the outdoor heat exchanger 200, according to an embodiment of this utility model. (Reference) Figure 2 and Figure 4 The water receiving tray 110 includes a water receiving tray body 111, a water receiving tray bending portion 112, and a water receiving tray extension portion 113 arranged sequentially.

[0036] The main body 111 of the water collection tray is positioned below the outdoor heat exchanger 200, which is embedded in the wall (not shown). The bent portion 112 of the water collection tray is formed by bending one end of the main body 111, and the bent portion 112 is connected to the main body 111 at a right angle. The extension portion 113 of the water collection tray is formed by bending the extension end of the bent portion 112, and is parallel to the main body 111; that is, the extension portion 113 and the bent portion 112 are also connected at a right angle. The extension portion 113 can be located on the indoor side outside the wall, and correspondingly, the opening of the drain outlet 130 on the extension portion 113 is also located on the indoor side outside the wall.

[0037] In low-temperature environments and when the air conditioner is in heating mode, the outdoor heat exchanger 200 embedded in the wall participates in the refrigeration cycle as an evaporator. When the outer surface of the evaporator is below the dew point temperature, condensation forms and drips from the evaporator surface. Through this method, the drip tray body 111 can collect the condensation dripping from the fins (not shown) and coils of the outdoor heat exchanger 200 and discharge it promptly through the drain outlet 130, preventing condensation from entering the air duct and forming ice, which would affect the fan blade operation. Simultaneously, the interconnected drip tray body 111, the drip tray bend 112, and the drip tray extension 113 increase the volume of the drip tray 110, allowing it to collect more condensation and thus improving collection efficiency.

[0038] Specifically, a slope with a certain angle can be formed at the connection between the drain outlet 130 and the water tray extension 113. The water collected by the water tray 110 can flow out from the water tray extension 113 through the slope, preventing condensate from flowing along the back of the water tray 110 to other areas of the chassis 303, which would result in incomplete collection of condensate.

[0039] <Electric heating element 120>

[0040] Combination Figure 4 Continue to refer to Figure 1 and Figure 2 The electric heating element 120 extends sequentially along the main body 111 of the water collection tray, the bent portion 112 of the water collection tray, and the extension portion 113 of the water collection tray. Specifically, the electric heating element 120 is configured with an inner section 120a and an outer section 120b along the contour of the bottom of the water collection tray 110. This two-section design allows for a larger contact area between the electric heating element 120 and the condensate collected in the water collection tray 110. In low-temperature environments, the electric heating element 120 prevents the condensate collected and temporarily retained in the water collection tray 110 from accumulating and freezing by heating, thereby reducing the risk of the fan blades of the outdoor heat exchanger 200 colliding with the ice inside the main body 111 of the water collection tray during operation, and improving the safety and stability of the outdoor heat exchanger 200 during operation.

[0041] like Figure 1 and Figure 4 As shown, the inner section 120a and the outer section 120b of the electric heating tube 120 extend from the drain outlet 130 to the end of the water tray extension 113 (as shown). Figure 2The lower right end of the water tray extension 113 is bent upwards (towards the outdoor heat exchanger 200) away from the water tray extension 113. This arrangement prevents the end of the electric heating tube 120 from contacting the main body of the outdoor heat exchanger 200, thus preventing contact between the end of the electric heating tube 120 and the condensate on the water tray 110 and the outdoor heat exchanger 200. Furthermore, the end of the electric heating tube 120 is at least away from the air duct to prevent direct heating of the plastic air guide ring, which could easily lead to fire or other safety hazards. This arrangement facilitates installation and maintenance.

[0042] <convex hull portion 140>

[0043] Continue to refer to Figure 1 and Figure 2 The water tray assembly 100 also includes a protruding portion 140. The protruding portion 140 can extend along the length direction of the water tray body 111 and protrude outward relative to the bottom surface of the water tray body 111. The protruding portion 140 can also extend along the length direction of the water tray bend 112 and protrude outward relative to the bottom surface of the water tray bend 112.

[0044] Figure 3 This is a structural diagram of the air conditioner chassis 303 in this embodiment of the invention, with the water tray assembly 100 installed. Figure 1 and Figure 3 As shown, the inner section 120a and the outer section 120b of the electric heating tube 120 extend to both sides of the convex portion 140, respectively.

[0045] This configuration, with the protrusion 140 separating the inner section 120a and the outer section 120b of the electric heating element 120, facilitates the installation of the electric heating element 120. Since the electric heating element 120 is a single bent piece of material, it can be directly installed onto the water receiving tray 110 by being restrained by the protrusion 140. The protrusion 140 is higher than the height of the electric heating element 120, preventing the electric heating element 120 from directly contacting the outdoor heat exchanger 200 (e.g., ...). Figure 4 The fins (as shown) are designed so that the heating element 120 may not come into direct contact with it, which could damage the heating element 120 and lead to safety hazards such as electric leakage. At the same time, the convex part 140 supports the outdoor heat exchanger 200, making the whole unit safe and reliable, and further improving the safety of the heating element 120 during use.

[0046] like Figure 1 , Figure 2 and Figure 4As shown, the protruding portion 140 includes two sections disposed on the water receiving pan body 111 and the water receiving pan bend 112. The height of the protruding portion 140 protruding from the bottom surface of the water receiving pan body 111 or the water receiving pan bend 112 is at least greater than the diameter of the electric heating tube 120. In this way, the protruding portion 140 can prevent the fins of the outdoor heat exchanger 200 from directly contacting or scraping against the electric heating tube 120, thereby improving the safety of the outdoor heat exchanger 200 and the electric heating tube 120 during use.

[0047] <Electric heating element fixing component 121>

[0048] Figure 5 This is a schematic diagram of the structure of the electric heating tube fixing member 121 in this embodiment of the present invention, wherein, Figure 5 a is a front view of the electric heating tube fixing component 121 in the embodiment of this utility model. Figure 5 b is a side view of the electric heating tube fixing member 121 in this embodiment of the utility model. (In conjunction with...) Figure 1 And refer to Figure 5 a and Figure 5 b. The water tray assembly 100 also includes an electric heating element fixing member 121. Both ends of the electric heating element fixing member 121 extend across the protrusion 140 and are fixedly mounted on the electric heating elements 120 on both sides of the protrusion 140. The middle portion of the electric heating element fixing member 121 may have a screw hole, allowing it to be fixed to the protrusion 140 using bolts. The middle portion of the electric heating element fixing member 121 is bent at a certain arc (e.g., ...). Figure 5 As shown in b), with this configuration, the electric heating tube fixing member 121 can simultaneously fix the inner section 120a and the outer section 120b of the electric heating tube 120, preventing the electric heating tube 120 from sliding in the extension direction of the convex portion 140 or from being misaligned with the convex portion 140, thus ensuring the stability of the electric heating tube 120 during use.

[0049] Continue to refer to Figure 1 and Figure 2 The electric heating element fixing member 121 is at least provided on the protruding portion 140 corresponding to the water receiving tray body 111 and the water receiving tray bending portion 112. For example... Figure 1 As shown, there are four electric heating tube fixing components 121. Three electric heating tube fixing components 121 are provided on the protrusion 140 of the water receiving tray body 111, and one electric heating tube fixing component 121 is provided on the protrusion 140 of the water receiving tray bending portion 112. With this arrangement, the four electric heating tube fixing components 121 form an L-shape, further ensuring the stability of the electric heating tube 120.

[0050] Of course, the number of electric heating tube fixing parts 121 is not limited in this utility model. As long as at least one electric heating tube fixing part 121 is provided on the protrusion 140 on the main body 111 of the water receiving tray and on the protrusion 140 on the bent part 112 of the water receiving tray, the above-mentioned effect can be achieved.

[0051] like Figure 2 and Figure 4 As shown, this utility model also provides a heat exchanger assembly 300, including an outdoor heat exchanger 200 composed of heat exchange tubes 301 and fins (not shown). A water collection tray assembly 100 is disposed below the outdoor heat exchanger 200 with the water collection tray body 111 corresponding to the heat exchange tubes 301.

[0052] <Drain Valve 302>

[0053] Combination Figure 2 and refer to Figure 4 The heat exchanger assembly 300 also includes a drain valve 302. The drain valve 302 is located at the drain port 130 of the water tray extension 113. By controlling the opening and closing of the drain valve 302 and the degree of opening and closing of the drain valve 302, the outflow of condensate in the water tray 110 is controlled, thereby further improving the drainage efficiency of the water tray 110.

[0054] <Chassis 303>

[0055] Figure 6 This is a structural diagram of the air conditioner chassis 303 in this embodiment of the invention, without the water tray assembly 100 installed. (In conjunction with...) Figure 4 and refer to Figure 3 and Figure 6 The heat exchanger assembly 300 also includes a chassis 303 and a chassis recess (not shown) disposed on the chassis 303. The chassis 303 is disposed on the side opposite to the drain valve 302 across the drain port 130. A portion of the chassis 303 (e.g.) Figure 6 As shown, the base 303 is positioned opposite the drain outlet 130, and the bottom area of ​​the partial base 303 is larger than the area of ​​the drain outlet 130 to prevent condensate from splashing onto other areas and causing safety hazards. The overall area of ​​the base 303 is larger than the area of ​​the drip tray 110, thereby supporting the drip tray 110 and some parts of the air conditioner. A recessed groove is provided on the bottom surface of the base 303.

[0056] When the air conditioner is in cooling mode, the indoor heat exchanger (not shown) of the unitary air conditioner acts as the evaporator in the cooling cycle, while the outdoor heat exchanger 200, embedded in the wall, acts as the condenser. Indoor air comes into contact with the outer surface of the evaporator, forming condensate. By placing the chassis 303 below the indoor heat exchanger (which acts as the evaporator), the chassis 303 can collect the condensate from the indoor heat exchanger and guide it through a recess in the chassis 303 to the area below the outdoor heat exchanger 200 (which acts as the condenser), thus achieving heat dissipation for the condenser.

[0057] Corresponding to the aforementioned water tray assembly 100, this utility model also provides an air conditioning device. For example... Figure 4 As shown, the air conditioning unit includes a compressor (not shown), an indoor heat exchanger (not shown), an expansion valve (not shown), an outdoor heat exchanger 200, an outdoor fan 201 corresponding to the outdoor heat exchanger 200, and the aforementioned drip tray assembly 100, all connected sequentially along refrigerant pipes and mounted on the same base. The drip tray assembly 100 is located below the outdoor heat exchanger 200.

[0058] When the air conditioner is in heating mode and the outdoor temperature is low, the drip tray assembly 100 can fully collect condensate, preventing it from freezing and reducing the risk of the outdoor fan 201 blades colliding with the ice inside the drip tray assembly 100. Furthermore, the protrusion 140 at the bottom of the drip tray 110 prevents the condensate collected inside from being blown outside, thus improving the safety and stability of the air conditioner during operation.

[0059] Corresponding to the aforementioned heat exchanger assembly 300, this utility model also provides an air conditioning device. This air conditioning device includes a compressor, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger 200, and a fan corresponding to the outdoor heat exchanger 200, all sequentially connected along refrigerant pipes and mounted on the same chassis 303. The outdoor heat exchanger 200 uses the aforementioned heat exchanger assembly 300 and is mounted within a wall. That is, in low-temperature environments, the outdoor heat exchanger 200 within the wall acts as an evaporator in the refrigeration cycle, allowing the condensate drain pan 110 in the heat exchanger assembly 300 to drain the collected condensate outside the wall, preventing water accumulation and ice formation within the pan. This reduces the risk of collision between the blades of the outdoor fan 201 and the ice within the pan assembly 100, thereby improving the overall safety and stability of the air conditioning device during operation.

Claims

1. A water receiving tray assembly, disposed below a heat exchanger, characterized in that, include: The main body of the water receiving tray is located below the heat exchanger; The bent portion of the water receiving tray is formed by bending one end of the main body of the water receiving tray. The water tray extension is formed by bending the extension end of the water tray bending portion and being parallel to the water tray body; An electric heating element is provided along the main body of the water receiving tray, the bent portion of the water receiving tray, and the extension portion of the water receiving tray; The drain outlet has an opening located in the extension of the water receiving tray.

2. The water receiving tray assembly as described in claim 1, characterized in that, Also includes: The convex portion extends at least along the length of the main body of the water receiving tray or along the length of the bend of the water receiving tray, and protrudes from the bottom surface of the main body of the water receiving tray or the bend of the water receiving tray, and the height of the convex portion is at least greater than the diameter of the electric heating tube. The electric heating tubes extend and are disposed on both sides of the convex portion.

3. The water receiving tray assembly as described in claim 2, characterized in that, The electric heating tube extends along the drain outlet to the end of the water tray extension and bends away from the water tray extension.

4. The water receiving tray assembly as described in any one of claims 2-3, characterized in that, Also includes: An electric heating element fixing component is fixedly disposed on both sides of the protrusion portion in a manner that spans the protrusion portion.

5. The water receiving tray assembly as described in claim 4, characterized in that, The electric heating tube fixing component is provided at the convex portion corresponding to the main body of the water receiving tray and the bend of the water receiving tray.

6. A heat exchanger assembly, comprising a heat exchanger consisting of heat exchange tubes and fins, characterized in that, Also includes: The water receiving tray assembly according to any one of claims 1-5 is disposed below the heat exchanger in such a way that the water receiving tray body corresponds to the heat exchange tube.

7. The heat exchanger assembly as claimed in claim 6, characterized in that, Also includes: A drain valve is provided corresponding to the drain outlet of the water receiving tray assembly.

8. The heat exchanger assembly as claimed in claim 7, characterized in that, Also includes: The chassis is located on the side opposite to the drain valve, across the drain outlet; A chassis groove is provided on the bottom surface of the chassis.

9. An air conditioning unit, comprising a compressor, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger, and an outdoor fan corresponding to the outdoor heat exchanger, all sequentially connected along refrigerant pipes and mounted on the same chassis, characterized in that, Also includes: The water tray assembly according to any one of claims 1-5 is arranged in a manner that places it below the outdoor heat exchanger.

10. An air conditioning unit, comprising a compressor, an indoor heat exchanger, an expansion valve, an outdoor heat exchanger, and an outdoor fan corresponding to the outdoor heat exchanger, all sequentially connected along refrigerant pipes and mounted on the same chassis, characterized in that, The outdoor heat exchanger uses the heat exchanger assembly according to any one of claims 6-8, and the outdoor heat exchanger is installed inside the wall.

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