WO2020000995A1

WO2020000995A1 - Air conditioner outdoor unit dissipating heat using narrow tube effect

Info

Publication number: WO2020000995A1
Application number: PCT/CN2019/000132
Authority: WO
Inventors: 孔凡文
Original assignee: 孔凡文
Priority date: 2018-06-25
Filing date: 2019-06-24
Publication date: 2020-01-02
Also published as: CN209279295U

Abstract

An air conditioner outdoor unit which dissipates heat using a narrow tube effect, comprising an outer casing (1), an inner casing (2), a compressor (3), a connecting piece (4), a heat exchanger (5), a mesh cover (6), a fan (7), a fan frame (8), a controller (9), a base (10) and a top cover (11), wherein the outer casing (1) is a hollow casing, and the inner casing (2) is hollow casing and is located inside the outer casing (1), and a cavity of a certain spacing is formed between the two; the heat exchanger (5) is disposed at one end of an air outlet of the outer casing (1), and at said location an air flow from the fan (7) located at the air inlet may form a narrow tube effect, so that the speed of wind flowing through the cavity between the two casings is greatly increased, and a large amount of heat is taken away, thereby greatly increasing the heat dissipation efficiency of the heat exchanger (5), and thus improving the refrigeration efficiency and the energy saving and environmental protection effects.

Description

Air conditioner outdoor unit utilizing narrow tube effect for heat radiation

Technical field

The utility model relates to the field of air conditioners, in particular to an outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat.

Background technique

Air conditioners are very important appliances in our daily life and are widely used in homes and various public environments. However, the power consumption of air conditioners has always been a headache for users. The most important reason is that the heat dissipation efficiency is relatively low and wasted. For many energy sources, the traditional outdoor unit of the air conditioner is the main device that exchanges heat with the outside world. Its appearance and structure have not changed much, and the heat dissipation method has always followed the original design. It is the use of a fan to heat the heat The air is exhausted from the casing in an exhaust manner. The characteristic of this method is that the heat exchanger is located on the back of the fan. The accelerated air flow will not flow through the heat exchanger. The air passing through the fan is hot air heated by heat exchange. The fan itself will be heated, the motor resistance will increase, and eventually the power consumption will increase.

In nature, the "narrow valley effect" of the terrain, also known as the "narrow duct effect", when air flows from a wide area into a canyon formed by the terrain, because the air quality cannot accumulate a large amount, it accelerates through the canyon, and the wind speed will greatly increase. When flowing out of the canyon, the air velocity will slow down again. The influence of this canyon terrain on the airflow is called the "narrow effect", also known as the "narrow effect". The wind increased by the narrow effect is called a canyon. Wind or through-wind, the liquid flows in the tube, and the flow speed increases when passing through the narrow place; when the air flows through the narrow terrain like the liquid flows in the tube, the flow speed will also increase, and due to the compressibility of the gas, the density will also increase. It is large, so you can use this effect to increase the air velocity. High-speed air can quickly take away a lot of heat, so that the machine can achieve better heat dissipation.

Summary of the invention

The purpose of the utility model is to provide an air conditioner outdoor unit that uses a narrow tube effect to dissipate heat, so that the heat dissipation efficiency is greatly improved, thereby achieving the purposes of improving refrigeration efficiency, energy saving and environmental protection.

In order to achieve the above object, the technical solution of the present utility model is an air-conditioning outdoor unit that uses a narrow tube effect to dissipate heat. , The controller, the base and the top cover, characterized in that the shell is a hollow shell, which can be a round tube shape or a square tube shape, with round holes in the shell wall, related pipes and wires It can pass through the circular hole, the base is fixed on the outside, and the connecting bracket and the fan bracket are fixed on the inside. There are several louver holes at the corresponding positions near the heat exchanger to prevent the sun from directly shining on the heat exchanger to make it warm. At the same time, it does not hinder heat dissipation. The shell with the louvered part can completely cover the heat exchanger, or it can only partially cover the heat exchanger to allow the heat exchanger to fully contact the outside world to facilitate heat dissipation. Usually, heat exchange is performed during installation. The part of the device that is not exposed to the sun on the side of the wall need not be covered.

The inner shell is a hollow shell, which is fixed on the connecting support and is located inside the outer shell with a certain space between the two. The airflow can flow freely between the cavities, which can be cylindrical or square. Cylindrical, the end near the fan can be spherical or conical, can be conical or pyramidal, or flat, the wall of the shell is provided with pipe holes and heat dissipation holes, cooling pipes and wires It can pass through the pipe hole, and the internal heat can be dissipated through the heat dissipation hole. In order to increase the strength, reduce the manufacturing cost and the complexity of the process, it can also be directly fixed on the shell.

The compressor is fixed inside the inner shell, the refrigerating pipeline is connected to the heat exchanger through the pipe holes of the inner shell and the circular hole through the shell is connected to the indoor unit, and the related wires pass through the pipe holes of the inner shell. The round hole of the casing is connected to the corresponding circuit of the indoor unit.

The connecting brackets are thin sheets of a certain strength, and the two sides are respectively fixed on the inner shell and the outer shell, and are distributed between the cavity formed between the inner shell and the outer shell, and play a role of connecting and fixing the inner shell and the outer shell. The airflow can flow freely between the cavities. At the same time, a heat exchanger is fixed on the top, so that the outer shell, the inner shell and the heat exchanger are fixed together, and the cavities are spaced apart from each other.

The heat exchanger is arranged at one end of the air outlet of the outer shell, and is fixed on the connecting support. There is a cavity with a certain distance between the inner side and the inner shell, and a cavity with a certain distance between the outer side and the outer shell. The free flow between the cavities can be blown by the air flow from the fan. One end of the refrigeration pipe is connected to the compressor and the other end is connected to the indoor unit. The part that has not yet undergone heat exchange temperature is located on the side away from the fan. The temperature after heat exchange The lower part is on the side near the fan.

The net cover is fixed at one end of the air inlet on the casing, and the outside of the fan can be made of non-metallic material or metal material, which can prevent foreign matter from being sucked into the machine.

The fan is fixed on a fan support and is located at one end of an air inlet of the shell, and can be rotated by a motor.

The fan bracket is fixed at one end of the air inlet on the outer casing, or it can be fixed on the inner casing with a fan fixed on the upper side.

The controller is fixed inside the inner shell, and the related wires are connected to the motor of the fan through the pipe holes of the inner shell, which mainly controls the operation of the fan. The relevant power wires pass through the pipe holes of the inner shell and the round holes of the outer shell. The corresponding control circuit of the indoor unit is connected.

The base is fixed on the shell, and bolt holes are provided on the base, which can be fixed on the wall or the air-conditioning bracket with bolts to support the weight of the entire outdoor unit.

The top cover is fixed on the inner shell and has a size larger than the cross-section of the shell. There is a certain gap between the air outlet of the shell and the heat exchanger. The air blown from the inside can be discharged from the gap to the outside of the shell. There may also be no gaps, and the air blown from the inside can be discharged from the louver holes of the housing.

The technical effect of the present utility model is that, because the inner shell is provided at the air outlet on the inner side of the outer shell, the cross-sectional area of the air outlet is reduced, and the airflow from the fan located at the air inlet can form a narrow tube effect here, so that the air flows through The wind speed in the cavity between the two shells has greatly increased. The heat exchanger is fixed at one end of the air outlet and can be blown by the airflow. The high-speed air will take away a lot of heat, which greatly improves the heat dissipation efficiency of the heat exchanger. The position where the front of the fan is blown by the wind is not the back of the fan, which is more conducive to heat dissipation to achieve the effect of improving cooling efficiency, energy saving and environmental protection. The manufacturing process is simple, and the appearance is more overall and beautiful.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic perspective view of the three-dimensional structure of the present invention in which the outer shell is a circular tube and the inner shell is cylindrical and the shell completely covers the heat exchanger.

FIG. 2 is a schematic cross-sectional structure diagram of the present invention.

FIG. 3 is a schematic view of an air flow path of the present invention.

FIG. 4 is a perspective view of a three-dimensional structure in which the outer shell of the utility model is a square tube, the inner shell is a square pillar, and the shell only partially covers the heat exchanger.

FIG. 5 is a perspective view of a three-dimensional structure in which the inner shell of the present invention is directly fixed on the outer shell.

FIG. 6 is a schematic view of a three-dimensional structure with a cone-shaped end of the inner shell of the utility model near the fan.

FIG. 7 is a schematic diagram of a three-dimensional structure in which the end of the inner shell of the utility model near the fan is pyramidal.

FIG. 8 is a schematic diagram of a three-dimensional structure of an end of the inner shell of the utility model near the fan.

detailed description

The following describes a specific embodiment with reference to FIG. 1: An outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat is composed of an outer casing 1, an inner casing 2, a compressor 3, a connection support 4, a heat exchanger 5, a net cover 6, and a fan. 7. The fan bracket 8, the controller 9, the base 10, and the top cover 11 are characterized in that the shell 1 is a hollow shell, which can be a round tube shape or a square tube shape. There are round holes, the related pipes and wires can pass through the round holes, the base 10 is fixed on the outside, and the connecting bracket 4 and the fan bracket 8 are fixed on the inside. Several louver holes are provided near the corresponding position of the heat exchanger 5 to Prevent sunlight from directly shining on the heat exchanger 5 to increase its temperature without hindering heat dissipation. The housing with the louvered part can completely cover the heat exchanger 5 or only partially cover the heat exchanger 5 to Allow the heat exchanger 5 to fully contact the outside world to facilitate heat dissipation. Generally, the part of the heat exchanger 5 on the side of the wall that cannot be exposed to sunlight during installation need not be covered.

The inner shell 2 is a hollow shell, which is fixed on the connecting bracket 4 and is located inside the outer shell 1 with a certain distance between the two cavities. The airflow can flow freely between the cavities and can be cylindrical. It can also be a square cylinder, and the end near the fan 7 can be spherical or conical, can be conical or pyramidal, or flat, and there are pipe holes and heat dissipation holes on the shell wall. Refrigeration pipes and wires can pass through the pipe holes, and the internal heat can be dissipated through the heat dissipation holes. In order to increase the strength, reduce the manufacturing cost and the complexity of the process, it can also be directly fixed on the casing 1.

The compressor 3 is fixed inside the inner shell 2. Refrigeration pipes are respectively connected to the heat exchanger 5 through the pipe holes of the inner shell 2 and connected to the indoor unit through the round holes of the outer shell 1. The relevant wires pass through the inner The pipe hole of the casing 2 and the round hole of the casing 1 are connected to corresponding circuits of the indoor unit.

The connecting support piece 4 is a sheet of a certain strength, and the two sides are respectively fixed on the inner shell 2 and the inside of the outer shell 1 and are distributed between the cavity formed between the inner shell 2 and the outer shell 1 for connection and fixing. The role of the shell 2 and the outer shell 1 allows the air flow to flow freely between the cavities, and a heat exchanger 5 is also fixed on it, so that the outer shell 1, the inner shell 2 and the heat exchanger 5 are fixed together and between each other. Spaced cavities.

The heat exchanger 5 is disposed at one end of the air outlet of the outer shell 1 and is fixed on the connecting support 4. A cavity with a certain distance between the inner side and the inner shell 2, and a cavity with a certain distance between the outer side and the outer shell 1. The airflow can flow freely between the two cavities and can be blown by the airflow blown by the fan 7. One end of the refrigeration pipe is connected to the compressor 3 and the other end is connected to the indoor unit. The part that has not been subjected to heat exchange temperature is located far away from the fan 7. On the side, the lower temperature part after heat exchange is located on the side near the fan 7.

The net cover 6 is fixed at one end of the air inlet of the casing 1 and the outside of the fan 7 may be made of a non-metal material or a metal material, which can prevent foreign matter from being sucked into the machine.

The fan 7 is fixed on the fan support 8 and is located at one end of the air inlet of the casing 1 and can be driven by the motor.

The fan bracket 8 is fixed on one end of the air inlet on the outer casing 1, or it can be fixed on the inner casing 2, and the fan 7 is fixed on the upper side.

The controller 9 is fixed inside the inner shell 2, and the related wires are connected to the motor of the fan 7 through the pipe holes of the inner shell 2, which mainly controls the operation of the fan 7, and the relevant power wires pass through the pipe holes of the inner shell 2. The circular hole of the casing 1 is connected to the corresponding control circuit of the indoor unit.

The base 10 is fixed on the casing 1 and is provided with bolt holes on the base. The bolt 10 can be fixed on a wall or an air-conditioning bracket to support the weight of the entire outdoor unit.

The top cover 11 is fixed on the inner shell 2 and has a size larger than the cross section of the outer shell 1. There is a certain gap between the air outlet of the outer shell 1 and the heat exchanger 5, and the air blown from the inside can be discharged from the gap. There may also be no gaps to the outside of the casing 1, and the air blown from the inside may be discharged from the louver holes of the casing 1.

The working principle of the present invention is illustrated by an example below. When the air conditioner needs to dissipate heat after starting, the controller 9 located in the inner casing 2 controls the motor of the fan 7 fixed on the fan bracket 8 to drive the fan 7 to rotate, and the outer casing 1 and The cold air outside the mesh cover 6 is pushed into the outer shell 1 and pushed to the air outlet. Since the inner shell 2 is provided at the air outlet, the cross section of the air outlet is greatly reduced, so the airflow is at the outer shell 1 and the inner shell 2 The space between the hollow spaces is constrained to form a narrow tube effect, forming a high-speed and high-pressure airflow. Since the heat exchanger 5 at the air outlet is fixed on a plurality of connecting brackets 4, and there is a certain space between the inner side and the inner shell 2, the outer side is also connected with There is a certain cavity between the shells 1, so the high-speed air flow from the fan 7 can flow freely through the two cavities and simultaneously flow through the heat sink of the heat exchanger 5 to remove a large amount of heat from the surface, and then part of the hot air flow The gap passing through the heat sink and the louver holes of the casing 1 are discharged to the outside of the machine, and another part of the air flow is discharged to the outside of the machine through the gap formed between the top cover 11 and the casing 1, so that the heat exchanger 5 can achieve the purpose of cooling and cooling. ,lie in The compressor 3 in the inner casing 2 is constantly running, so that the refrigerant is continuously circulated in the indoor unit and the heat exchanger 5, and the indoor heat is taken away, and then the heat is exchanged by the outdoor heat exchanger 5 to achieve heat exchange, thereby achieving the cooling effect. Because the speed of the airflow flowing through the heat exchanger 5 is relatively large, dust does not easily adhere to it, and it also has the effect of automatically cleaning the dust on the top. When the entire outdoor unit is installed, the base 10 is fixed to the wall and the The casing 1 fixed on the top is installed in a vertical direction so that the air outlet of the heat exchanger 5 faces upwards and the fan 7 is at the bottom, which is more conducive to heat dissipation and energy saving, because the hot air originally goes upwards, even if the fan 7 is not working In the state of natural heat dissipation, since the relatively closed space is formed inside the casing 1, the hot air heated by the heat exchanger 5 rises, and the internal space of the casing 1 forms a relatively low-pressure region. Therefore, the outside of the casing 1 is relatively cold in the high-pressure region. The air naturally enters the filling, accelerating the natural convection heat dissipation, forming the well-known "chimney effect", which makes the cooling and heat dissipation efficiency higher.

The utility model can also be applied to a large central air conditioner.

The best implementation examples of the present invention have been explained, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

Claims

An air conditioner outdoor unit using a narrow tube effect to dissipate heat is composed of an outer shell, an inner shell, a compressor, a connection support, a heat exchanger, a net cover, a fan, a fan bracket, a controller, a base and a top cover. :

The shell is a hollow shell, the wall of the shell is provided with a circular hole, the base is fixed on the outside, the connecting bracket and the fan bracket are fixed on the inside, and a plurality of louver holes are provided.
The outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat according to claim 1, wherein the casing is in the shape of a circular tube.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 1, characterized in that the casing is square tube-shaped.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 1, characterized in that the inner shell is a hollow shell, which is fixed on the connecting bracket, is located inside the outer shell with a certain distance therebetween. The spaced-apart cavity is cylindrical, the end near the fan is spherical, and the wall of the shell is provided with pipe holes and heat dissipation holes.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 4, characterized in that the inner shell is square in shape, and an end near the fan is tapered.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 4, wherein the inner shell is directly fixed on the outer shell.
The outdoor unit of air conditioner using the narrow tube effect to dissipate heat according to claim 1, wherein the compressor is fixed inside the inner shell, and the refrigerating pipeline passes through the pipe hole of the inner shell and the heat exchanger, respectively. The circular holes connected and passing through the housing are connected to the indoor unit.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 1, characterized in that both sides of the connection branch are fixed on the inner shell and the outer shell, respectively, and are formed between the inner shell and the outer shell. At the same time, a heat exchanger is fixed on the cavity.
The outdoor unit of an air conditioner using a narrow tube effect to dissipate heat according to claim 1, characterized in that the heat exchanger is disposed at one end of an air outlet of the outer shell, is fixed on a connecting support, and is provided between the inner and inner shells. A cavity at a certain distance, a cavity at a certain distance between the outer side and the shell, the part that has not undergone heat exchange temperature is located on the side away from the fan, and the part that has been cooled after the heat exchange is located on the side near the fan.
The outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat according to claim 1, characterized in that the mesh cover is fixed to one end of an air inlet on the casing and the outside of the fan.
The outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat according to claim 1, wherein the fan is fixed on a fan support and is rotated by a motor.
The outdoor unit of an air conditioner that uses a narrow tube effect to dissipate heat according to claim 1, wherein the fan bracket is fixed to one end of an air inlet on the casing, and a fan is fixed on the fan bracket.
The air conditioner outdoor unit using the narrow tube effect to dissipate heat according to claim 12, wherein the fan bracket is fixed on the inner shell.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 1, wherein the base is fixed on the housing, and bolt holes are provided on the base.
The outdoor unit of an air conditioner using the narrow tube effect to dissipate heat according to claim 1, characterized in that the top cover is fixed on the inner shell and has a size larger than a cross section of the outer shell.