Air conditioner outdoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, particularly provides an air conditioner outdoor unit and an air conditioner, and aims to solve the problem that an existing air conditioner outdoor unit is poor in heat dissipation effect. In order to achieve the purpose, the air conditioner outdoor unit comprises a machine shell, the interior of the machine shell is provided with a partition plate, and the partition plate divides the internal space of the machine shell into a first cavity and a second cavity; the condenser is arranged in the first chamber; the electric control assembly is connected with the partition plate, and one end of the electric control assembly extends into the first cavity and is connected with a radiator; and the partition piece is arranged between the condenser and the radiator. The air flow passing through the radiator can be adjusted from a laminar flow state to a turbulent flow state, so that the convective heat transfer coefficient between the air flow and the radiator is increased, the heat exchange efficiency is enhanced, and stable operation of the electric control assembly is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and specifically provides an outdoor unit of an air conditioner and an air conditioner. Background Art

[0002] When the outdoor unit of an air conditioner operates for a long time in a high-temperature environment, it may cause the electrical components of the electronic control system to malfunction or even be damaged due to excessive temperature, thereby affecting the stable operation of the entire air conditioning system.

[0003] To improve the above phenomenon, a radiator is usually connected to the electronic control system and placed in the chamber where the condenser is located. In this way, the heat generated by the electrical components in the electronic control system will be transferred to the radiator. Then, during the operation of the outdoor unit fan, the outside air flow passes through the condenser and the above-mentioned radiator in sequence. During the process of the air flow passing through the radiator, part of the heat on the surface of the radiator is taken away, realizing the cooling of the electronic control system. However, since the air flow passing through the condenser already has a relatively high temperature, and the high-temperature air flow quickly sweeps across the surface of the radiator during the flow process, the effect of convective heat transfer is not ideal. Therefore, the above solution still has the problem of poor heat dissipation effect.

[0004] Correspondingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present application aims to solve the above technical problems, that is, to solve the problem of poor heat dissipation effect of the existing outdoor unit of an air conditioner.

[0006] In a first aspect, the present application provides an outdoor unit of an air conditioner, which includes:

[0007] A housing, inside which a partition is provided, and the partition divides the internal space of the housing into a first chamber and a second chamber;

[0008] A condenser, which is arranged in the first chamber;

[0009] An electronic control component, which is connected to the partition, and one end of the electronic control component extends into the first chamber and is connected to a radiator;

[0010] A baffle, which is arranged between the condenser and the radiator.

[0011] In the case of adopting the above technical solution, after the outside air flow passes through the condenser, it passes through the baffle, and the air flow is disturbed and changes from the laminar flow state to the turbulent flow state, and then enters the radiator. In this way, the air flow can fully contact the surface of the radiator in the turbulent flow state, extend the time for the air flow to pass through the surface of the radiator, thereby increasing the convective heat transfer coefficient between the air flow and the radiator, enhancing the heat transfer efficiency, and being beneficial to the stable operation of the electronic control component.

[0012] In a technical solution of the above air conditioner outdoor unit, the partition member is of a flat plate structure, and there is a gap for air flow between the partition member and the partition plate.

[0013] In the case of adopting the above technical solution, the air flow enters the area between the partition member and the radiator through the above gap, and a low-pressure area can be formed in the area between the partition member and the radiator. Under the action of the pressure difference, the air flow on the side of the radiator away from the condenser is sucked into the radiator, so that a two-way moving air flow is formed in the radiator, further improving the turbulence effect. On the other hand, since the air flow on the side away from the condenser is relatively low in temperature, the air flow on this side enters the radiator under the action of the pressure difference, which can further enhance the heat exchange effect, and thus improve the cooling effect on the radiator.

[0014] In a technical solution of the above air conditioner outdoor unit, the orthographic projection of the partition member on the surface of the condenser covers the orthographic projection of the radiator on the surface of the condenser.

[0015] In the case of adopting the above technical solution, the blocking effect of the partition member on the air flow can be ensured, so that a low-pressure area is formed between the partition member and the radiator, so that more low-temperature air flow can reversely enter the channel of the radiator.

[0016] In a technical solution of the above air conditioner outdoor unit, the outer contour of the partition member extends 10-40 mm beyond the outer contour of the radiator.

[0017] In a technical solution of the above air conditioner outdoor unit, the partition member is parallel to the surface of the condenser.

[0018] In the case of adopting the above technical solution, the air flow in two directions can be evenly distributed in the internal channel of the radiator as much as possible, so as to dissipate heat evenly at each position of the radiator and prevent local hot spots from appearing on the radiator.

[0019] In a technical solution of the above air conditioner outdoor unit, the distance d between the partition member and the condenser is 1 / 3D - 2 / 3D;

[0020] where D is the distance between the radiator and the condenser.

[0021] In the case of adopting the above technical solution, the partition member is basically in the middle position between the radiator and the condenser. It can not only ensure that a certain amount of air flow can be stored in the area between the partition member and the condenser after the air flow passes through the condenser, so that this part of the air flow enters the area between the partition member and the radiator under the action of air pressure. At the same time, it can also ensure that a sufficient amount of air flow enters the area between the partition member and the condenser, and a vortex is formed in this area, thereby forming a low-pressure area and sucking the low-temperature air flow into the radiator.

[0022] In one technical solution of the above air conditioner outdoor unit, the partition member has a porous structure.

[0023] In the case of adopting the above technical solution, the porous structure can fully disperse the air flow passing through the condenser, disturb the air flow, and improve the turbulence effect of the air flow entering the radiator.

[0024] In one technical solution of the above air conditioner outdoor unit, the partition member further includes a connecting portion extending towards the direction of the electric control component, and the partition member is connected to the electric control component through the connecting portion.

[0025] In one technical solution of the above air conditioner outdoor unit, the radiator includes a plurality of heat dissipation fins arranged at intervals, and a channel for the air flow to pass through is formed between adjacent heat dissipation fins, and the extending direction of the channel is perpendicular to the surface of the condenser.

[0026] In the case of adopting the above technical solution, the extending direction of the channel inside the radiator is basically the same as the air flow direction in the first chamber, and the air flow is more likely to enter the radiator. Description of the Drawings

[0027] The following describes the preferred embodiments of the present application with reference to the drawings. In the drawings:

[0028] Figure 1 is a schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0029] Figure 2 is Figure 1 a top view (the dotted line in the figure is the air flow path);

[0030] Figure 3 is a schematic diagram of an electric control component according to an embodiment of the present application.

[0031] In the figure, the reference numerals refer to the following:

[0032] 1, housing; 11, partition; 2, condenser; 3, electric control component; 31, radiator; 4, partition member; 41, connecting portion; 5, fan;

[0033] 100, first chamber; 200, second chamber. Detailed Embodiments

[0034] The following describes the preferred embodiments of the present application with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present application and are not used to limit the protection scope of the present application. Those skilled in the art can make adjustments according to needs to adapt to specific application scenarios.

[0035] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In addition, it should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] When the outdoor unit of the air conditioner operates for a long time in a high-temperature environment, it may cause the power devices in the electronic control component above the compressor to malfunction or be damaged due to high temperature. Therefore, in order to dissipate the heat of the power devices, a radiator is often connected to the electronic control component to transfer the heat generated by the power devices themselves to the radiator. During the operation of the outdoor unit of the air conditioner, under the pressure difference formed by the fan, the outside air is sucked into the chamber of the outdoor unit, and the air flow passes through the condenser and the radiator of the electronic control component in sequence, taking away part of the heat on the surface of the radiator. Therefore, the above method increases the contact area between the power device and the air through the radiator, thereby accelerating the transfer of heat to the surrounding air.

[0038] However, during the operation of the outdoor unit of the air conditioner, when the outside air flow passes through the condenser and enters the radiator, the air flow is in a laminar state, which will affect the convective heat transfer process between the air flow and the radiator, making the air flow unable to fully contact the surface of the radiator, thereby reducing the heat transfer efficiency. On the other hand, after the air flow passes through the condenser, its temperature has risen to a relatively high value. In this case, during the process of the air flow passing through the radiator, along the flow path of the air flow, its temperature will continue to rise. Therefore, even if the air flow passes through the radiator, no significant heat dissipation effect will be achieved.

[0039] Refer to Figure 1 , which is a schematic diagram of an outdoor unit of an air conditioner according to an embodiment of the present application, including a housing 1, a condenser 2, an electronic control component 3, a partition member 4, and a fan 5.

[0040] Refer to Figure 1 and Figure 2, a partition 11 is fixedly arranged inside the housing 1, and the partition 11 divides the internal space of the housing 1 into a first chamber 100 and a second chamber 200. Among them, the condenser 2 is installed in the first chamber 100, and the condenser 2 is arranged close to the side wall of the housing 1. A through hole is provided in the corresponding part of the side wall of the housing 1 for the condenser 2, so that the outside air flow can enter the first chamber 100 through the through hole and pass through the condenser 2. The fan 5 is installed on the side of the housing 1 opposite to the condenser 2. When the fan 5 operates, under the action of air pressure, the outside air flow enters the first chamber 100, passes through the condenser 2 and is discharged out of the first chamber 100 through the fan 5, so as to exchange heat with the condenser 2.

[0041] The second chamber 200 is used to install necessary components such as a compressor and a gas-liquid separator. The electronic control component 3 is installed on the top of the second chamber 200 and is electrically connected to the compressor. Specifically, the electronic control component 3 may include an electronic control box, a driving circuit board installed in the electronic control box, and various power devices electrically connected to the driving circuit board. One end of the electronic control component 3 extends into the first chamber 100 and is connected with a radiator 31, and the heat generated by the driving circuit board and the power devices in the electronic control box can be transferred to the radiator 31.

[0042] Referring to Figure 2 and Figure 3 , in an implementation manner of the present application, the radiator 31 includes a plurality of spaced-apart heat dissipation fins, and a channel for the air flow to pass through is formed between adjacent heat dissipation fins. When the radiator 31 is installed in the housing 1, the extending direction of the above channel is perpendicular to the surface of the condenser 2, so that the air flow passing through the condenser 2 can enter the above channel.

[0043] The baffle 4 is arranged between the condenser 2 and the radiator 31. The function of the baffle 4 is to disperse the air flow passing through the condenser 2, so that the air flow changes from a laminar flow state to a turbulent flow state. Therefore, in some implementation manners, the structural form of the baffle 4 can be a grille formed by arranging multiple rods side by side, or a structure similar to a shutter, or a porous structure such as a honeycomb or a net, or a plate structure, etc. The present application does not limit this.

[0044] When the baffle 4 is provided, after the outside air flow passes through the condenser, it passes through the baffle 4, and the air flow is disturbed and changes from a laminar flow state to a turbulent flow state, and then enters the radiator 31. In this way, the air flow can fully contact the surface of the radiator 31 in the turbulent flow state, extend the time for the air flow to pass through the surface of the radiator 31, thereby increasing the convective heat transfer coefficient between the air flow and the radiator 31, enhancing the heat transfer efficiency, and being beneficial to the stable operation of the electronic control component 3.

[0045] Referring to Figure 1 and Figure 2, in an embodiment of the present application, the partition member 4 is a flat plate structure. There is a gap for the air flow channel between the partition member 4 and the partition plate 11.

[0046] Referring to Figure 2 (The dotted line in the figure shows the flow path of the air flow), when the partition member 4 is a flat plate structure, the air flow cannot pass through the partition member 4. Therefore, after the air flow passes through the condenser 2, it is blocked by the partition member 4, and the air flow moves around. The air flow on the side away from the partition plate 11 flows towards the central position of the first chamber 100 and is discharged through the fan 5. The air flow on the side close to the partition plate 11 enters the area between the partition member 4 and the radiator 31 through the above gap. During the above flow process of the air flow, it is first blocked by the partition plate 11, then turns, and is blocked by the radiator 31 and the partition member 4 again. Moreover, the pressure of the air flow increases during the process of passing through the narrow gap between the partition member 4 and the partition plate 11. The air flow forms a vortex in the limited area between the partition member 4 and the radiator 31 during the process of pressure increase and continuous commutation, and finally flows towards the central direction of the first chamber 100. Only a small part of the air flow enters the radiator 31. In this way, a low-pressure area is formed in the area between the partition member 4 and the radiator 31. Under the action of the pressure difference, the air flow on the side of the radiator 31 away from the condenser 2 is sucked into the radiator 31, so as to form a two-way moving air flow in the radiator 31, further improving the turbulence effect.

[0047] It should be noted that there is also a gap between the partition member 4 and the bottom wall of the casing 1. Therefore, part of the air flow can also enter the radiator 31 from below the partition member 4 (not shown in the figure).

[0048] It should also be noted that the distribution of the temperature field in the first chamber 100 is different. The area close to the condenser 2 is usually at a higher temperature, while the area close to the fan 5 is usually at a lower temperature. This is because in the area close to the condenser 2, when the air flow passes through the surface of the condenser 2, it is just heated by the condenser 2. And during the process of the air flow moving towards the fan 5 side, the temperature of the air flow will gradually decrease (it is found by the inventor's test that in the temperature field formed in the first chamber 100, the temperature difference between different areas can reach more than 5 °C). Therefore, in the case of adopting the above technical solution of the present application, the two-way flow of the air flow can not only improve the turbulence effect, but also the temperature of the air flow on the side away from the condenser 2 is relatively low. Under the action of the pressure difference, it enters the radiator 31, which can further enhance the heat exchange effect, and then improve the cooling effect on the radiator 31.

[0049] In an embodiment of the present application, the orthographic projection of the partition member 4 on the surface of the condenser 2 covers the orthographic projection of the radiator 31 on the surface of the condenser. Optionally, the outer contour of the partition member 4 extends beyond the outer contour of the radiator 31 by 10-40 mm. In this way, the blocking effect of the partition member 4 on the air flow can be ensured, so that a low-pressure area is formed between the partition member 4 and the radiator 31, and thus more low-temperature air flow can reversely enter the channels of the radiator 31.

[0050] Optionally, the partition member 4 is parallel to the surface of the condenser 2, that is, the partition member 4 is in a vertical state. In this way, the air pressure consistency in the vertical direction of the two sides of the partition member 4 can be ensured, so that the air flows in two directions can be evenly distributed in the internal channels of the radiator 31 as much as possible, so as to dissipate heat evenly at each position of the radiator 31 and prevent local hot spot phenomena from occurring in the radiator 31.

[0051] Refer to Figure 2 , in an embodiment of the present application, the distance between the partition member 4 and the condenser 2 is denoted as d, and the distance between the radiator 31 and the condenser 2 is denoted as D. Then the above distances satisfy the following relationship: d = 1 / 3D - 2 / 3D.

[0052] The above relationship shows that the partition member 4 is basically in the middle position between the radiator 31 and the condenser 2. It is necessary to ensure that there is a certain width between the condenser 2 and the partition member 4, so that a certain amount of air flow can be stored in the area between the partition member 4 and the condenser 2 after the air flow passes through the condenser 2, so that this part of the air flow can enter the area between the partition member 4 and the radiator 31 under the action of air pressure. At the same time, it is also necessary to ensure that there is a certain width between the partition member 4 and the condenser 2, so that a sufficient amount of air flow can enter the area between the partition member 4 and the condenser 2 and form a vortex in this area, thereby forming a low-pressure area and sucking the low-temperature air flow into the radiator 31.

[0053] Refer to Figure 1 , in an optional manner of the present application, a connecting portion 41 is fixed to the upper end of the partition member 4. The connecting portion 41 extends toward the side of the electronic control assembly 3 and is fixedly connected to the electronic control box of the electronic control assembly 3, so as to realize the fixation of the partition member 4.

[0054] It can be seen that in the above case, the air flow passing through the condenser 2 will not enter the area where the radiator 31 is located from the upper side of the partition member 4. Of course, it does not constitute a limitation to the present application. In some other implementation manners, in order to enable part of the air flow to bypass the upper part of the partition member 4 and enter the area where the radiator 31 is located, the partition member 4 can be connected to the bottom wall or the partition 11 of the casing 1 through components such as support rods, as long as it does not completely block other air flow paths.

[0055] Although in the above embodiments of the present application, the partition member 4 is taken as an example of a flat plate structure for illustration, the specific shape of the present application is not strictly limited thereto. For example, in one implementation, a diversion structure in the shape of an arc-shaped plate may also be connected to one end of the partition member 4 close to the partition plate 11, so that the air flow can smoothly enter between the partition member 4 and the radiator 31 under the guiding action of the above arc-shaped plate.

[0056] The present application also discloses an air conditioner, which includes the outdoor unit of the air conditioner in any of the above embodiments. The air conditioner includes an evaporator, a throttling device, and necessary components such as a condenser and a compressor in the above outdoor unit of the air conditioner, which will not be elaborated herein.

[0057] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. An air conditioner outdoor unit, characterized in that: include: A casing, wherein a partition is disposed inside the casing, and the partition divides the inner space of the casing into a first chamber and a second chamber; a condenser disposed in the first chamber; An electric control component connected to the partition, one end of the electric control component extending into the first chamber and connected to a radiator; A barrier is arranged between the condenser and the radiator.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The barrier is a flat plate structure, and a gap is provided between the barrier and the partition plate for air flow to pass through.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The orthographic projection of the baffle on the surface of the condenser covers the orthographic projection of the radiator on the surface of the condenser.

4. The air conditioner outdoor unit according to claim 3, characterized in that: The outer contour of the baffle exceeds the outer contour of the radiator by 10-40 mm.

5. The air conditioner outdoor unit according to claim 2, characterized in that: The baffle is parallel to the surface of the condenser.

6. The air conditioner outdoor unit according to claim 5, characterized in that: The distance between the baffle and the condenser is d=1 / 3D-2 / 3D; Wherein, D is the distance between the radiator and the condenser.

7. The air conditioner outdoor unit according to claim 1, characterized in that: The barrier member is a porous structure.

8. The air conditioner outdoor unit according to claim 1, characterized in that: The barrier member further comprises a connecting portion extending toward the electric control component, and the barrier member is connected to the electric control component via the connecting portion.

9. The air conditioner outdoor unit according to any one of claims 1 to 8, characterized in that: The radiator comprises a plurality of heat dissipation fins arranged at intervals, and channels for air flow to pass through are formed between adjacent heat dissipation fins. The extending direction of the channels is perpendicular to the surface of the condenser.

10. An air conditioner, characterized in that: An air conditioner outdoor unit comprising any one of claims 1 to 9.

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