CN211552582U

CN211552582U - Air conditioner and finned heat exchanger thereof

Info

Publication number: CN211552582U
Application number: CN201921759616.1U
Authority: CN
Inventors: 张�杰; 赵龙; 王鹏; 张鸿瑞; 刘利峰
Original assignee: Zhejiang Dunan Electro Mechanical Technology Co Ltd
Current assignee: Zhejiang Dunan Electro Mechanical Technology Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-22
Anticipated expiration: 2029-10-18

Abstract

The utility model relates to an air conditioner and fin type heat exchanger thereof. The finned heat exchanger comprises an outer frame, at least two groups of heat exchange assemblies and a water guide plate. The outer frame comprises a top end and a bottom end which are opposite. The connecting line direction of the top end and the bottom end is a first direction. At least two groups of heat exchange assemblies are accommodated and arranged in the outer frame and are arranged at intervals along the first direction. Each group of heat exchange components comprises at least one heat exchange tube. The heat exchange tubes extend in a second direction perpendicular to the first direction. A water guide plate is arranged between two adjacent groups of heat exchange assemblies. The water deflector comprises a main body and a bending part bent towards the bottom end along the edge of the main body. The main body and the bending part extend in the second direction. In a third direction perpendicular to the first direction and the second direction, the size of the water guide plate is larger than that of the heat exchange assembly. The arrangement of the water guide plate can reduce the probability of the defrosting water flowing to the heat exchange tube below the water guide plate, so that the fin type heat exchanger and the air conditioner are higher in reliability.

Description

Air conditioner and finned heat exchanger thereof

Technical Field

The utility model relates to an air conditioner heat exchanger technical field especially relates to an air conditioner and fin formula heat exchanger thereof.

Background

The finned heat exchanger is used as a common air conditioner heat exchanger and is mainly used for heat exchange of cold and hot fluids. The finned heat exchanger comprises a heat exchange assembly. In the defrosting process, defrosting water formed on the upper part of the heat exchange assembly generally flows through the lower part of the heat exchange assembly from top to bottom, so that the temperature of the bottom of the heat exchange assembly is slowly increased, and the defrosting time is long. Furthermore, if defrosting is performed for a long time under low ambient temperature conditions, water remains on the surface of the lower portion of the heat exchange assembly. When the heating operation is carried out after defrosting is finished, ice layers can be formed by the residual water and attached to the bottom of the fin type heat exchanger, so that the normal work of the fin type heat exchanger is influenced, and the reliability of the fin type heat exchanger is not high.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a fin heat exchanger with high reliability in order to solve the problem of low reliability of the conventional fin heat exchanger.

A fin heat exchanger comprising:

the outer frame comprises a top end and a bottom end which are opposite, and the connecting line direction of the top end and the bottom end is a first direction;

at least two groups of heat exchange assemblies accommodated and installed in the outer frame are arranged at intervals along the first direction, each group of heat exchange assemblies comprises at least one heat exchange tube, and the heat exchange tubes extend along a second direction perpendicular to the first direction; and

set up in adjacent two sets of water guide plate between the heat exchange assemblies, include the main part and follow the main part edge court the kink of bottom bending, the main part reaches the kink all to the second direction extends, and is at the perpendicular to the first direction reaches in the third direction of second direction, the size of water guide plate is greater than heat exchange assemblies's size.

In one embodiment, the outer frame is a rectangular frame-shaped structure.

In one embodiment, both ends of the water guide plate are fixedly connected with the inner wall of the outer frame.

In one embodiment, two opposite edges of the main body are both formed with a bending part, and the two bending parts are arranged oppositely.

In one embodiment, the main body and the bent portion are integrally formed.

In one embodiment, an included angle between the bending part and the main body is 135 degrees.

In one embodiment, the end of the main body is provided with a mounting plate, the mounting plate is bent relative to the main body along the direction towards the top end, and the mounting plate is fixedly connected with the inner wall of the outer frame.

In one embodiment, the mounting plate is provided with a connecting hole, the side wall of the outer frame is provided with a mounting hole at a position opposite to the connecting hole, and the fin-type heat exchanger further comprises a connecting piece which axially penetrates through the mounting hole in a limiting manner and is fixedly connected with the connecting hole.

In one embodiment, the connecting hole is a threaded hole, and the connecting piece is a threaded fastener, which is inserted through the mounting hole and screwed with the threaded hole.

An air conditioner comprises a finned heat exchanger.

When the finned heat exchanger is positioned on the horizontal plane, the top end of the air conditioner is the upper end of the outer frame, and the lower end of the air conditioner is the lower end of the outer frame. Because the size of the water guide plate in the third direction is larger than that of the heat exchange assembly in the third direction, the water guide plate can shield the heat exchange assembly below the water guide plate, and in the defrosting process, the defrosting water formed on the heat exchange tube above the water guide plate can only fall onto the water guide plate and flows out through the bent part, so that the probability that the defrosting water on the heat exchange tube above the water guide plate flows onto the heat exchange tube below the water guide plate is greatly reduced. Moreover, because the kink is buckled along the direction towards the bottom for the main part, when the defrosting water in the event main part flows out through the kink, the kink has higher outflow speed in the defrosting water on guaranteeing the main part, has still reduced the probability that the defrosting water flows to the water deflector lower surface and drops to the heat exchange tube below this water deflector along the surface of water deflector, has further reduced the probability on the heat exchange tube of defrosting rivers to water deflector below. Therefore, the arrangement of the water guide plate enables the reliability of the fin type heat exchanger and the air conditioner to be higher.

Drawings

Fig. 1 is a schematic structural diagram of a fin heat exchanger according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of a portion B of the finned heat exchanger shown in FIG. 1;

FIG. 3 is a sectional view A-A of the finned heat exchanger of FIG. 2;

FIG. 4 is an enlarged view of a portion C of the finned heat exchanger shown in FIG. 3;

fig. 5 is a schematic structural diagram of a water guide plate in the fin heat exchanger shown in fig. 1;

fig. 6 is a side view of the water guide panel shown in fig. 5.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides an air conditioner (not shown) and a finned heat exchanger 100 thereof. Wherein the air conditioner includes a finned heat exchanger 100. The finned heat exchanger 100 is mainly used for heat exchange of cold and hot fluids in heating, refrigerating and defrosting processes of an air conditioner.

It should be noted that the finned heat exchanger 100 may be applied to central heating equipment, air conditioners, refrigerators, and other equipment. In the present embodiment, the fin heat exchanger 100 is mainly applied to an air conditioner as an example.

The finned heat exchanger 100 of the preferred embodiment of the present invention includes an outer frame 110, a heat exchange assembly 120 and a water guide plate 130. Wherein, the heat exchange assemblies 120 include at least two groups, and a water guide plate 130 is disposed between each two groups of heat exchange assemblies 120.

The frame 110 includes a top end 111 and a bottom end 112. The outer frame 110 mainly plays a supporting role and is generally made of a material with relatively high strength, such as stainless steel, alloy steel, etc., so that the outer frame 110 has a relatively high bearing capacity. The outer frame 110 may have a frame-like structure of any shape, such as a circle, a rectangle, an ellipse, a polygon, and the like. The outer frame 110 may be a structure formed by splicing a plurality of side plates, or an integral structure formed by winding one side plate.

The connection line between the top end 111 and the bottom end 112 is the first direction 200. When the fin heat exchanger 100 is located in the horizontal plane, the top end 111 is the upper end of the outer frame 110, and the bottom end 112 is the lower end of the outer frame 110, so that the direction from the top end 111 to the bottom end 112 is the gravity direction, and the first direction 200 is the vertical direction.

In the present embodiment, the outer frame 110 has a rectangular frame-shaped structure. In an air conditioner, the fin heat exchanger 100 is usually installed through the outer frame 110 and other components, so that the outer frame 110 is set to be a rectangular frame-shaped structure, which not only facilitates the installation of the other components and the fin heat exchanger 100 in the air conditioner, but also facilitates the alignment of the fin heat exchanger 100 during the installation, and further facilitates the installation of the fin heat exchanger 100.

Referring to fig. 2 to 4, at least two sets of heat exchange assemblies 120 are received and installed in the outer frame 110. At least two sets of heat exchange assemblies 120 are spaced apart along the first direction 200. When the finned heat exchanger 100 is located in the horizontal plane, at least two sets of heat exchange assemblies 120 are arranged at intervals in the vertical direction. Each set of heat exchange assemblies 120 includes at least one heat exchange tube 121. The heat exchange pipe 121 extends in a second direction 300 perpendicular to the first direction 200. The heat exchange tube 121 is used as an important component of the finned heat exchanger 100, and is mainly used for heat exchange of cold and hot fluids, so the heat exchange tube 121 is usually made of materials with good heat conductivity, such as aluminum alloy, stainless steel, copper, aluminum, and the like. The heat exchange tube 121 may be a straight tube, a U-shaped tube, an S-shaped tube, or the like. In the present embodiment, the heat exchange pipe 121 is a straight pipe, and the heat exchange pipe 121 extends along a second direction 300 perpendicular to the first direction 200. Specifically, both ends of the heat exchange tube 121 are fixedly connected to the inner wall of the outer frame 110. When the heat exchange tubes 121 are straight tubes, each group of heat exchange assemblies 120 may include only one heat exchange tube 121, or may include a plurality of heat exchange tubes 121 arranged in parallel and at intervals.

Referring to fig. 5 and 6, a water guide plate 130 is disposed between two adjacent sets of heat exchange assemblies 120. The water guide plate 130 is at least one. The water guide plate 130 includes a main body 131 and a bending part 132 bent toward the bottom 112 along an edge of the main body 131. Specifically, in order to increase the speed of the defrosted water on the main body 131 flowing out through the bending part 132 and reduce the probability of water accumulation on the main body 131, the included angle between the main body 131 and the bending part 132 is greater than 90 degrees and less than 180 degrees. The main body 131 and the bending portion 132 extend along the second direction 300. In a third direction 400 perpendicular to the first and

second directions

200 and 300, the size of the water guide plate 130 is larger than that of the heat exchange assembly 120. The main body 131 may be fixedly connected to the bent portion 132 by welding, screwing, or the like, or may be integrally formed with the bent portion 132 by bending a rib. Specifically, only one end of the water guide plate 130 may be fixedly connected to the inner wall of the outer frame 110, or both ends of the water guide plate may be fixedly connected to the inner wall of the outer frame 110.

The structure of the water guide panel 130 includes two kinds, the first kind; the water guide plate 130 includes a bending part 132 connected to the main body 131, and the bending part 132 is bent toward the bottom 112 relative to the main body 131, so that the water guide plate 130 forms a bent plate with one end bent; secondly, the water guide plate 130 includes two bending portions 132, and the two bending portions 132 are respectively disposed at two opposite ends of the main body 131 and bent along a direction toward the bottom 112 with respect to the main body 131, so that the water guide plate 130 forms a bent plate with two bent ends.

In the present embodiment, an included angle between the bending portion 132 and the main body 131 is 135 degrees. The included angle between the bending part 132 and the main body 131 is set to 135 degrees, so that the water on the main body 131 has a faster flow rate when flowing out through the bending part 132, and the probability that the defrosted water splashes onto the heat exchange tube 121 on the side of the water guide plate 130 facing the bottom end 112 when flowing out through the bending part 132 can be reduced.

In the present embodiment, the main body 131 and the bending portion 132 are integrally formed. Therefore, the bending plate is of an integral plate-shaped structure. The water deflector 130 may be a bent plate formed by bending a bent plate mechanically, or may be an integrally formed structure formed by casting or the like. The main body 131 and the bent portion 132 are integrally formed, so that the main body 131 and the bent portion 132 are more firmly connected, and the water guide plate 130 is more conveniently processed.

When the fin heat exchange assembly 120 is located in a horizontal plane, the first direction 200 is a vertical direction, the second direction 300 is a horizontal direction perpendicular to the vertical direction, and the third direction 400 is a horizontal direction perpendicular to the second direction 300, and at this time, the bending portion 132 is bent downward relative to the main body 131.

Since the size of the water guide plate 130 is larger than that of the heat exchange assembly 120 in the third direction 400, the water guide plate 130 shields the heat exchange assembly 120 located therebelow. In the defrosting process, the defrosting water formed on the heat exchange tube 121 above the water guide plate 130 can directly drop to the main body 131 of the water guide plate 130 under the action of self gravity, and flows out through the bent portion 132, so that the probability that the defrosting water above the water guide plate 130 flows onto the heat exchange tube 121 below the water guide plate 130 is greatly reduced.

Moreover, since the bending portion 132 is bent relative to the main body 131 in a direction toward the bottom 112, when the defrosting water on the main body 131 flows out through the bending portion 132, the bending portion 132 ensures that the defrosting water on the main body 131 has a higher outflow speed, and at the same time, reduces the probability that the defrosting water flows to the lower surface of the water guide plate 130 along the surface of the water guide plate 130 and falls onto the heat exchange tube 121 below the water guide plate 130, and further reduces the probability that the defrosting water above the water guide plate 130 flows to the heat exchange tube 121 below the water guide plate 130. Therefore, the arrangement of the water guide plate 130 not only improves the defrosting efficiency of the heat exchange assembly 120, but also reduces the probability that the operation of the fin heat exchanger 100 is affected by the formation of an ice layer on the heat exchange tube 121, thereby effectively improving the reliability of the fin heat exchanger 100.

In the present embodiment, two opposite edges of the main body 131 are formed with the bending part 132. The two bending portions 132 are disposed opposite to each other. Thus, the water guide plate 130 is a U-shaped bent plate with both ends bent. Therefore, when the fin-type heat exchanger 100 is located on a horizontal plane and defrosting is performed, defrosting water falling onto the main body 131 can flow out through the bending parts 132 at the two ends of the main body 131, so that the defrosting water flowing out from the main body 131 is faster, the probability that the defrosting water flows to the lower surface of the water guide plate 130 along the surface of the water guide plate 130 and falls onto the heat exchange tube 121 below the water guide plate 130 is further reduced, and the reliability of the fin-type heat exchanger 100 is further improved.

Referring to fig. 1 again, in the present embodiment, both ends of the water guide plate 130 are fixedly connected to the inner wall of the outer frame 110. When the outer frame 110 is a rectangular frame structure, two ends of the water guide plate 130 are respectively fixedly connected to two inner walls of the outer frame 110. The two ends of the water guide plate 130 are fixedly connected with the inner wall of the outer frame 110, so that the water guide plate 130 is more stable in the outer frame 110, and the service life of the finned heat exchanger 100 is effectively prolonged. Moreover, when both ends of the water guide plate 130 are fixedly connected to the inner wall of the outer frame 110, the water guide plate 130 can completely shield the heat exchange tube 121 located on the side of the water guide plate 130 facing the bottom end 112, so as to further reduce the probability that the defrosting water formed on the side of the water guide plate 130 facing the top end 111 flows onto the heat exchange tube 121 located on the side of the water guide plate 130 facing the bottom end 112, thereby further improving the defrosting efficiency, and further reducing the probability of forming an ice layer on the heat exchange, and further improving the reliability of the fin-type heat exchanger 100.

Referring to fig. 5 and 6 again, in the present embodiment, an installation plate 133 is disposed at an end of the water guide plate 130. The mounting plate 133 is bent with respect to the body 131 in a direction toward the tip 111. The mounting plate 133 is fixedly coupled to the inner wall of the outer frame 110. The mounting plate 133 may be fixedly coupled to the outer frame 110 by means of screw, snap, or the like. Thus, the water guide plate 130 is fixedly coupled to the outer frame 110 by the mounting plate 133. In the process of installing the water guide plate 130, the water guide plate 130 can be installed on the outer frame 110 only by fixing the fixing plate to the outer frame 110. Therefore, the installation of the water guide panel 130 is made easier by the installation of the installation plate 133.

Specifically, at least one end of the body 131 is provided with a mounting plate 133. Since the main body 131 is located inside the outer frame 110, the mounting plate 133 is disposed on the main body 131, so that the mounting plate 133 can be easily aligned with the inner wall of the outer frame 110, and the water guide plate 130 can be more easily mounted on the outer frame 110.

Further, in the present embodiment, the mounting plate 133 is provided with a connecting hole 1331. A mounting hole (not shown) is formed at a position of the side wall of the outer frame 110 opposite to the connection hole 1331. The finned heat exchanger 100 further comprises a connection member 140. The connecting member 140 is axially positioned through the mounting hole and is fixedly connected to the connecting hole 1331.

When the water guide plate 130 needs to be mounted on the outer frame 110, the connecting member 140 is axially positioned and inserted into the mounting hole, and one end of the connecting member 140 extending out of the inner wall of the outer frame 110 is fixed in the connecting hole 1331. Therefore, the connection member 140 further improves the fixing convenience between the mounting plate 133 and the outer frame 110, and the water guide plate 130 is more conveniently mounted.

Further, in the present embodiment, the connection hole 1331 is a screw hole. The connector 140 is a threaded fastener. The threaded fastener penetrates through the mounting hole and is in threaded connection with the threaded hole. Therefore, the water guide plate 130 is detachably connected with the shell, so that the water guide plate 130 is more convenient to disassemble and assemble. When the water guide plate 130 needs to be mounted on the outer frame 110, the water guide plate 130 and the outer frame 110 can be fixed only by inserting the screw fasteners into the mounting holes of the outer frame 110 and screwing the screw fasteners into the screw holes of the mounting plate 133. Therefore, the connector 140 is provided as a screw fastener, which further improves the convenience of installation of the water guide panel 130.

In this embodiment, the finned heat exchanger 100 further includes a water receiving member (not shown) mounted to the bottom end 112. The surface of the water receiving piece facing to the side of the heat exchange component 120 is provided with a water collecting groove. The water collection tank is used for collecting the defrosting water on the water guide plate 130 and the heat exchange assembly 120 near the bottom end 112. The side wall of the water receiving piece is provided with an outlet communicated with the water collecting tank. Therefore, in the defrosting process, the defrosting water formed on the heat exchange assembly 120 can directly flow into the water collecting tank and flow out of the fin-type heat exchanger 100 through the outlet, so that the defrosting water on the water guide plate 130 and the defrosting water on the heat exchange assembly 120 close to the bottom end 112 can be prevented from flowing randomly in the fin-type heat exchanger 100 and the air conditioner, other components in the fin-type heat exchanger 100 and the air conditioner are easily corroded and damaged, and the condition that the defrosting water leaks out of the air conditioner is avoided. Therefore, the arrangement of the water receiving piece not only prolongs the service life of the finned heat exchanger 100 and the air conditioner, but also improves the customer experience.

In the air conditioner and the finned heat exchanger 100 thereof, when the finned heat exchanger 100 is located on a horizontal plane, the top end 111 is the upper end of the outer frame 110, and the bottom end is the lower end of the outer frame 110. Because the dimension of the water guide plate 130 in the third direction 400 is greater than the dimension of the heat exchange assembly 120 in the third direction 400, the water guide plate 130 shields the heat exchange assembly 120 below the water guide plate 130, and during defrosting, the defrosting water formed on the heat exchange tubes 121 above the water guide plate 130 can only fall onto the water guide plate 130 and flow out through the bent portions 132, so that the probability that the defrosting water on the heat exchange tubes 121 above the water guide plate 130 flows onto the heat exchange tubes 121 below the water guide plate 130 is greatly reduced. Moreover, since the bending portion 132 is bent relative to the main body 131 in a direction toward the bottom 112, when the defrosting water on the main body 131 flows out through the bending portion 132, the bending portion 132 ensures that the defrosting water on the main body 131 has a higher outflow speed, and at the same time, reduces the probability that the defrosting water flows to the lower surface of the water guide plate 130 along the surface of the water guide plate 130 and falls onto the heat exchange tube 121 below the water guide plate 130, and further reduces the probability that the defrosting water flows to the heat exchange tube 121 below the water guide plate 130. Therefore, the water guide plate 130 is provided, so that the fin heat exchanger 100 and the air conditioner have higher reliability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A fin heat exchanger, comprising:

2. The finned heat exchanger of claim 1 wherein the outer frame is a rectangular frame-like structure.

3. The finned heat exchanger according to claim 1, wherein both ends of the water guide plate are fixedly connected to the inner wall of the outer frame.

4. The finned heat exchanger of claim 1, wherein two opposite edges of the main body are formed with bent portions, and the two bent portions are oppositely disposed.

5. The finned heat exchanger of claim 1, wherein the main body and the bent portion are of an integrally formed structure.

6. The finned heat exchanger of claim 1, wherein an included angle between the bent portion and the main body is 135 degrees.

7. The finned heat exchanger of any one of claims 1 to 6, wherein a mounting plate is provided at an end of the main body, and the mounting plate is bent with respect to the main body in a direction toward the top end, and the mounting plate is fixedly connected to an inner wall of the outer frame.

8. The finned heat exchanger of claim 7, wherein the mounting plate is provided with a connecting hole, the side wall of the outer frame is provided with a mounting hole at a position opposite to the connecting hole, and the finned heat exchanger further comprises a connecting member axially and limitedly inserted into the mounting hole and fixedly connected with the connecting hole.

9. The finned heat exchanger of claim 8, wherein the connection holes are threaded holes, and the connection members are threaded fasteners that are inserted through the mounting holes and threadedly engaged with the threaded holes.

10. An air conditioner characterized by comprising the fin heat exchanger according to any one of claims 1 to 9.