CN111912040B - Outdoor unit and air conditioner - Google Patents

Abstract

The application relates to the technical field of air-conditioning heat dissipation, and discloses an outdoor unit. The outdoor unit includes: an outer casing, defining a first chamber and a second chamber; wherein at least one side wall corresponding to the second chamber is provided with an auxiliary air inlet, and the partition plate is provided with a cooling air outlet; a wind driving device , which is used to drive the external air flow into the second chamber through the auxiliary air inlet; the electronic control assembly is located in the second chamber and is arranged corresponding to the heat dissipation air outlet. In the outdoor unit provided by the embodiments of the present disclosure, an auxiliary air inlet and a wind driving device are arranged on the side wall of the chamber where the electronic control assembly is located, and the wind driving device is used to drive the external air flow to flow through the electronic control assembly, thereby not only increasing the flow rate through the electronic control assembly The airflow and flow rate of the components can improve the heat dissipation effect of the electronic control components, and can also reduce the wind pressure diversion to the outdoor unit fan, thereby reducing the adverse effect on the heat exchange efficiency of the outdoor heat exchanger and ensuring the refrigeration performance of the air conditioner. The present application also discloses an air conditioner applying the outdoor unit.

Description

Outdoor unit and air conditioner

technical field

The present application relates to the technical field of heat dissipation of air conditioners, for example, to an outdoor unit and an air conditioner.

Background technique

When the air conditioner operates in high temperature weather in summer, due to the high outdoor ambient temperature, the heat generated by the operation of the electronic control components such as the computer board installed in the outdoor unit is often unable to be discharged in time, which leads to the temperature of the electronic control component itself. The higher the temperature, the more likely to cause high temperature damage. For this situation in the related art, heat dissipation modules such as heat sinks are usually used to reduce the temperature of the electrical components on the electronic control assembly. Generally, a heat dissipation module is installed on one side of the electronic control assembly to use the negative pressure generated by the rotation of the fan. The wind takes away the heat of the cooling module and electronic control components.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

The electronic control components of the existing outdoor units are generally arranged in the compressor chamber that is isolated from the fan chamber where the fan is located. Since the compressor chamber is relatively closed, the airflow in the compressor chamber must be blown out after passing through the electronic control components. It takes a lot of negative pressure of the fan to reach the fan chamber. Therefore, under the actual working conditions of the outdoor unit, there will not only be problems such as slow airflow velocity and low heat dissipation effect due to the low negative pressure on the side of the electronic control component, but also Due to the diversion of part of the negative pressure of the fan, the flow rate of the airflow through the outdoor heat exchanger will also be slowed down, which will also reduce the heat exchange effect on the outdoor heat exchanger and affect the refrigeration performance of the air conditioner.

SUMMARY OF THE INVENTION

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an outdoor unit and an air conditioner to solve the technical problem in the related art that the heat dissipation form of the electronic control assembly has a low heat dissipation effect and affects the refrigeration performance of the air conditioner.

In some embodiments, the outdoor unit includes:

The outer casing is divided into a first chamber for accommodating a fan and a second chamber for accommodating a compressor; wherein at least one side wall corresponding to the second chamber is provided with the auxiliary air inlet, the partition plate is provided with a cooling air outlet corresponding to the air inlet side of the fan and communicating with the first chamber and the second chamber;

a wind driving device, arranged at the auxiliary air inlet, and used for driving the external air flow into the second chamber through the auxiliary air inlet;

The electronic control assembly is located in the second chamber and is arranged corresponding to the heat dissipation air outlet, so that the air flow in the second chamber can flow out to the first chamber through the electronic control assembly and the heat dissipation air outlet in sequence.

In some optional embodiments, the wind powered device includes:

motor;

The rotating filter screen is located outside the auxiliary air inlet, and is drivingly connected with the driving motor, so as to filter the external air flow during the driving and rotating process by the driving motor.

In some optional embodiments, the rotating screen includes:

The shaft seat, located in the center of the rotating filter screen, is used to connect with the output shaft of the drive motor;

A plurality of grille bars are arranged on the outer periphery of the axle seat in a radial interval; at least some of the grille bars are arranged obliquely, so as to form wind from outside to inside when the rotating filter screen rotates;

The outer ring frame is arranged coaxially with the shaft seat, and the outer ends of the plurality of grid bars are connected to the outer ring frame.

In some optional embodiments, the rotating filter screen is disposed immediately outside the auxiliary air inlet, and the axial projection range can at least cover the auxiliary air inlet.

In some optional embodiments, the auxiliary air inlet includes:

Motor seat, used to fix the drive motor;

A plurality of air inlet mesh holes are arranged on the outer peripheral side of the motor base in a radial interval.

In some optional embodiments, a wiring port is further provided on the side wall corresponding to the second chamber, and the auxiliary air inlet is provided adjacent to the wiring port;

The outdoor unit further includes a wiring cover disposed on the outside of the side wall, and the wiring cover at least covers a wiring port and an auxiliary air inlet; wherein the wiring cover is provided with a cover air inlet at a position corresponding to the auxiliary air inlet.

In some optional embodiments, a dust outlet is provided at the bottom position of the wiring housing corresponding to the auxiliary air inlet.

In some optional embodiments, the electronic control assembly includes:

The electric control box body has a first accommodating portion located in the second cavity for accommodating one or more electric control modules, and a first accommodating portion extending to the first cavity through the heat dissipation air outlet and used for accommodating the heat dissipation modules. Two accommodating parts, the heat dissipation module is in thermal conductive contact with one or more electronic control modules;

Wherein, the first accommodating part is a semi-closed structure, so that the airflow in the second cavity can flow into the first accommodating part; a plurality of ventilation mesh holes are arranged between the first accommodating part and the second accommodating part.

In some optional embodiments, the outdoor unit further includes an independent cooling air duct, the air inlet end of the cooling air duct is arranged at the auxiliary air inlet, and the air outlet is arranged at the first accommodating portion.

In still other embodiments, the air conditioner includes the outdoor unit shown in any one of the above embodiments.

The outdoor unit provided by the embodiments of the present disclosure can achieve the following technical effects:

In the outdoor unit provided by the embodiments of the present disclosure, an auxiliary air inlet and a wind driving device are arranged on the side wall of the chamber where the electronic control assembly is located, and the wind driving device is used to drive the external air flow to flow through the electronic control assembly, thereby not only increasing the flow rate through the electronic control assembly The airflow and flow rate of the components can improve the heat dissipation effect of the electronic control components, and can also reduce the wind pressure diversion to the outdoor unit fan, thereby reducing the adverse effect on the heat exchange efficiency of the outdoor heat exchanger and ensuring the refrigeration performance of the air conditioner.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

1 is a schematic structural diagram of an outdoor unit provided by an embodiment of the present disclosure;

Fig. 2 is the partial exploded view of Fig. 1;

Fig. 2a is a partial enlarged view of part A in Fig. 2;

3 is a schematic structural diagram of a rotary filter screen provided by an embodiment of the present disclosure;

4 is a schematic structural diagram of an outdoor unit side plate provided by an embodiment of the present disclosure;

Fig. 5a is a perspective view 1 of a wiring housing provided by an embodiment of the present disclosure;

FIG. 5b is a second perspective view of a wiring housing provided by an embodiment of the present disclosure;

Figure 5c is a front view of a wiring housing provided by an embodiment of the present disclosure;

Fig. 5d is the B-B sectional view of Fig. 5c;

FIG. 6 is a schematic structural diagram of an electric control box provided by an embodiment of the present disclosure.

Among them, 11, outer casing; 111, side plate; 112, partition plate; 121, heat exchanger; 122, fan; 123, compressor; 124, liquid storage tank; 2, auxiliary air inlet; 21, motor base ; 22, air intake mesh; 31, drive motor; 32, rotary filter; 321, axle seat; 322, grille strip; 323, outer ring frame; 324, reinforcing rib; 325, reinforcing ring rib; 4, Electric control assembly; 41, electric control box; 411, first accommodating part; 412, second accommodating part; 413, ventilation mesh; 51, wiring port; 52, wiring cover; 521, cover air inlet ; 522, dust outlet.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientations shown in the drawings or Positional relationship. These terms are primarily used to better describe the embodiments of the present disclosure and embodiments thereof, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation. In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific situations.

In addition, the terms "arranged", "connected" and "fixed" should be construed broadly. For example, "connection" may be a fixed connection, a detachable connection, or a unitary construction; it may be a mechanical connection, or an electrical connection; it may be a direct connection, or an indirect connection through an intermediary, or two devices, elements or Internal connectivity between components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In this embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments may be combined with each other in the case of no conflict.

FIG. 1 is a schematic structural diagram of an outdoor unit provided by an embodiment of the present disclosure, and FIG. 2 is a partial exploded view of FIG. 1 .

1 and 2, an embodiment of the present disclosure provides an outdoor unit, the outdoor unit includes an outer unit casing 11 and several functional modules; wherein, the outer unit casing 11 is made of a hard material, such as aluminum Alloy, stainless steel, etc., the interior is limited with a cavity that can be used to accommodate the above-mentioned several functional modules. The cavity can play the role of protecting the functional modules to reduce the adverse impact of the outdoor environment on the normal operation of the functional modules; the functional modules mainly include replacement. Heater 121, fan 122, compressor 123, liquid storage tank 124, electronic control assembly 4, etc.; wherein, the heat exchanger 121 is used for the heat exchange between the refrigerant and the outdoor environment, specifically including the refrigerant to the outdoor environment in the cooling or dehumidification mode Release heat, and in the heating mode, the refrigerant absorbs heat from the outdoor environment; the fan 122 is used to drive the airflow of the outdoor environment to flow through the heat exchanger 121, so that the refrigerant continuously exchanges heat with the outdoor airflow newly delivered by the fan 122; compresses The compressor 123 is used to compress the refrigerant so that the refrigerant can reach the set high temperature and high pressure state; the liquid storage tank 124 is used to store the refrigerant and divide the refrigerant in two states of gas and liquid; the electronic control assembly 4 is the component that realizes the control function , which can control the operation parameters of the functional modules such as the compressor 123 and the fan 122 according to the preset program.

In the embodiment, the outer casing 11 is an approximately rectangular casing structure composed of six panels: a front panel, a back panel, a top panel, a bottom panel and two side panels 111; The plate 112 is formed separately, the number of chambers is two or more, and the chambers are independent from each other, and each chamber can be used for accommodating one or more functional modules. Here, each chamber can provide a relatively independent working space for one or more functional modules accommodated therein, so as to reduce the influence of interference between functional modules placed in different chambers and ensure the normal and stable operation of each functional module.

In this embodiment, referring to FIG. 1 as a front view, the outer casing 11 is separated by a vertically arranged partition 112 to define a first chamber and a second chamber, and the longitudinal edges of the partition 112 They are respectively fixedly connected to the top plate and bottom plate of the outer casing 11, and the lateral edges on both sides are respectively fixedly connected to the front plate and the back plate of the outer casing 11, so that the first chamber and the second chamber are isolated from each other, and the two chambers are There is little or no airflow between the chambers. In the figure, the first chamber is located on the left side of the outer casing 11, and the second chamber is located on the right side of the outer casing 11. The respective space volumes of the two chambers are determined according to the size of the functional modules they accommodate. It is determined that in this embodiment, the first chamber is mainly used as a chamber for accommodating the fan 122 and the heat exchanger 121 , and the second chamber is mainly used as a chamber for accommodating the compressor 123 , the liquid storage tank 124 and the electronic control assembly 4 Therefore, the space volume of the first chamber is larger than that of the second room. In the embodiment, the panel surrounding and forming the second chamber includes a front panel, a back panel, a right side portion of the top panel and the bottom panel, a right side panel 111 and a partition panel 112 .

In this embodiment, an auxiliary air inlet 2 is opened on the side wall corresponding to the second chamber, and the auxiliary air inlet 2 can communicate with the outdoor environment and the second chamber, so that air can flow between the outdoor environment and the second chamber. The technical solution of the present application is mainly to limit the unidirectional flow of the air flow from the outdoor environment into the second chamber through the auxiliary air inlet 2. Compared with the relatively closed compressor 123 chamber in the conventional technology, the newly opened auxiliary air inlet 2 The second chamber becomes a semi-closed chamber and can effectively increase the air intake volume and wind pressure in the second chamber, thus greatly reducing the negative pressure loss of the fan 122 in the first chamber when dissipating heat from the electronic control assembly 4 .

In some embodiments, the number of auxiliary air inlets 2 may be 1, or 2, 3, etc. The specific number of auxiliary air inlets 2 may be determined according to the actual air volume required for heat dissipation. When the required air volume is large, the number of auxiliary air inlets 2 can be set to three, and when the actual air volume required for heat dissipation is small, the number of auxiliary air inlets 2 can be set to one.

Optionally, for an outdoor unit with one auxiliary air inlet 2, the setting position of the auxiliary air inlet 2 may be on one of the front panel, the back panel, the top panel, the bottom panel and the side panel 111, as shown in FIG. 1 . In the example, the auxiliary air inlet 2 is provided on the side plate 111 . Among them, for the auxiliary air inlet 2 arranged on the top plate, since the auxiliary air inlet 2 is oriented upward, rain and snow can easily enter the second chamber through the auxiliary air inlet 2 in bad weather, and long-term use will make the functional modules in the second chamber. The aging is accelerated and the service life is reduced, so it is generally necessary to provide additional shielding structures against rain and snow, such as weatherboards and other components.

For an outdoor unit with more than one auxiliary air inlet 2, the auxiliary air inlet 2 may be arranged on one or more of the front panel, the back panel, the top panel, the bottom panel and the side panel 111. In an optional embodiment, one auxiliary air inlet 2 is respectively provided on multiple panels of the outdoor unit, for example, one auxiliary air inlet 2 is provided on each of the front panel and the side panel 111; A plurality of auxiliary air inlets 2 are arranged on the same panel of the machine, for example, 2 or 3 auxiliary air inlets 2 are arranged on the same side panel 111 . Here, the arrangement form of the plurality of auxiliary air inlets 2 can be flexibly adjusted according to specific heat dissipation requirements, and the present application is not limited to this.

In some optional embodiments, the structural form of the auxiliary air inlet 2 may be a symmetrical regular shape such as a circle, an ellipse, a square, etc., or may also be other asymmetrical irregular shapes, which the present application is not limited to. In this embodiment, the structural form of the auxiliary air inlet 2 is selected as a circle.

In this embodiment, the partition plate 112 is provided with a heat dissipation air outlet, and the heat dissipation air outlet can communicate with the second chamber and the second chamber, so that air can circulate between the first chamber and the second chamber; this application The technical solution is mainly to limit the unidirectional flow of airflow from the second chamber into the first chamber through the cooling air outlet. At the same time, since the side plate 111 is arranged relative to the partition plate 112, the airflow entering through the auxiliary air inlet 2 on the side plate 111 It flows to the heat dissipation air outlet after passing through most of the position of the electronic control assembly 4, and the airflow can exchange heat with most of the components of the electronic control assembly 4 during the flow process, so it can effectively ensure the overall safety of the electronic control assembly 4. heat radiation.

Here, the outer casing 11 of the outdoor unit is provided with an outdoor unit air inlet at the position of the back panel corresponding to the first chamber, and an outdoor unit air outlet is provided at the front panel position, and the fan 122 is located between the outer unit air inlet and the outer unit air outlet. During the operation, the airflow generated by its operation flows from the air inlet of the external unit to the air outlet of the external unit, so the side close to the back panel (or the air inlet of the external unit) is the air inlet side of the fan 122, and the side close to the front panel (or the air outlet of the external unit) One side of the tuyere) is the air outlet side of the fan 122 . The cooling air outlet is disposed corresponding to the air inlet side of the fan 122 . In this embodiment, the cooling air outlet is arranged corresponding to the air inlet side of the fan 122, the air inlet side of the fan 122 is in a negative pressure state compared to the outdoor environment, and the second chamber is connected to the outdoor environment through the auxiliary air inlet 2, and the pressure In the same state, the air pressure on the side corresponding to the first chamber of the cooling air outlet is lower than that on the side corresponding to the second chamber, so that the air in the second chamber can flow to the first chamber under the driving of negative pressure. ,

In the embodiment shown in FIG. 1 , the heat dissipation air outlet is located at the top of the partition plate 112 and is close to the side of the back plate. The electronic control assembly 4 is arranged corresponding to the heat dissipation air outlet, so that the airflow in the second chamber can flow out to the first chamber through the electronic control assembly 4 and the heat dissipation air outlet in sequence.

In some optional embodiments, in order to reduce the negative pressure of the fan 122 that drives the air flow from the second chamber to the first chamber, the outdoor unit of the present application is further provided with a wind driving device at the outlet of the auxiliary air inlet 2 , which is used to drive the external air flow into the second chamber through the auxiliary air inlet 2. When the wind drive device is running, the air from the outdoor environment can be continuously sent into the second chamber, and the air volume in the second chamber increases. , the air pressure increases, so that the air pressure difference between the second chamber and the first chamber becomes larger, so that the air flow and air flow rate flowing through the electronic control assembly 4 can be improved, thereby enhancing the heat dissipation efficiency. Especially when the fan 122 of the outdoor unit is running at a low speed, the negative pressure on the air inlet side is relatively small, and the cooling airflow generated only by the shunt negative pressure driving is less and the flow rate is relatively slow. The device can speed up the flow rate and flow rate of the heat dissipation airflow by increasing the positive pressure of the second chamber, so as to ensure the heat dissipation effect on the electronic control assembly 4 .

In some embodiments not shown in the drawings, the wind driving device includes a driving motor 31 and a plurality of fan blades, the plurality of fan blades are drivingly connected to the driving motor 31, and the driving motor 31 is electrically connected to the power supply circuit of the outdoor unit; After the driving motor 31 is powered on, the driving motor 31 drives the plurality of fan blades to rotate, so as to generate wind power that drives the airflow to flow from the outdoor side to the second chamber.

In this embodiment, the axial projection range of the fan blade can at least cover the auxiliary air inlet 2, and the cross-sectional area of the wind field generated by the rotation of the fan blade can cover the maximum air intake area of the auxiliary air inlet 2, which can effectively ensure the auxiliary air inlet 2. The air intake air volume can further improve the heat dissipation effect on the electronic control assembly 4 .

Optionally, the number of fan blades may be three blades, or five blades, etc., which is not limited in this application.

In still other optional embodiments, as shown in FIG. 2a, the wind driving device includes a driving motor 31 and a rotating filter screen 32. Similar to the previous embodiment, the rotating filter screen 32 is drivingly connected with the driving motor 31, and the driving motor 31 is electrically connected to the power supply circuit of the outdoor unit. After the driving motor 31 is powered on, the driving motor 31 drives the rotating filter screen 32 to rotate, which can also generate wind that drives the airflow from the outdoor side to the second chamber. Compared with the previous embodiment, in this embodiment, the fan blades are replaced by the rotating filter screen 32, and the rotating filter screen 32 can not only generate wind power during operation, but also can use its own filter screen characteristics to realize the filtering effect on the outside, The dust, branches and leaves mixed in the airflow are filtered out, so that the filtered airflow is in a relatively clean state, which effectively ensures the cleanliness of the second chamber during the long-term use of the outdoor unit.

In the embodiment, the rotating filter screen 32 is located outside the auxiliary air inlet 2 , so that impurities can be filtered out before entering the auxiliary air inlet 2 . Here, the rotating filter screen 32 is disposed immediately outside the auxiliary air inlet 2, so as to reduce the axial gap distance between the rotating filter screen 32 and the auxiliary air inlet 2 without interfering with the normal rotation of the rotating filter screen 32, so as to reduce the distance between the rotating filter screen 32 and the auxiliary air inlet 2. The air flow flowing into the gap from the outer peripheral side of the rotating filter screen 32 makes most of the air flow filtered by the rotating filter screen 32 before entering the auxiliary air inlet 2, which further ensures the filtering effect of the outside air.

FIG. 3 is a schematic structural diagram of a rotary filter screen provided by an embodiment of the present disclosure.

In some optional embodiments, as shown in FIG. 3 , the rotating filter screen 32 includes a shaft seat 321 , a plurality of grid bars 322 and an outer ring frame 323 . Among them, the shaft seat 321 is located in the center of the rotating filter screen 32, which is used to connect with the output shaft of the driving motor 31. When the output shaft rotates, the shaft seat 321 and the rotating filter screen 32 to which it belongs can be driven to rotate: many The grid bars 322 are radially spaced on the outer circumference of the shaft seat 321, which can be used to filter the air flowing therethrough; the outer ring frame 323 is arranged coaxially with the shaft seat 321, and the outer ring frame 323 mainly plays the role of shaping and supporting The outer ends of the plurality of grid bars 322 are connected to the outer ring frame 323.

In the embodiment, the shaft seat 321 is a flat cylindrical boss structure, and a shaft hole is formed in its interior along its own axial direction, and the output shaft of the driving motor 31 extends into the shaft hole to realize the matching and fixing with the shaft seat 321; Optionally, a thin ring plate is also formed on the outer circumference of the shaft seat 321, and the inner ends of the plurality of grid bars 322 are fixedly connected to the ring plate.

In this embodiment, at least a part of the grid bars 322 of the plurality of grid bars 322 are arranged obliquely, so as to form a wind force from the outside to the inside when the rotary filter screen 32 rotates; Under uniform force, the diagonally arranged grid bars 322 are evenly distributed on the rotating filter screen 32 and are arranged at equal intervals.

In order to improve the anti-deformation strength of the rotating filter screen 32 during the rotation process, the rotating filter screen 32 is further provided with a reinforcement structure. It is evenly arranged along the outer circumferential direction of the shaft seat 321 in an equidistant manner. Here, each reinforcing rib 324 is extended and formed along the radial direction of the rotating screen 32, and the two ends are respectively fixed with the shaft seat 321 and the outer ring frame 323; The reinforcing rib plate 324 can improve the connection strength between the outer ring frame 323 and the axle seat 321, reduce the pulling force exerted by the outer ring frame 323 on the plurality of grid bars 322 due to the tendency of the outer ring frame 323 to expand and move to the outer circumference under the action of centrifugal force during the rotation, and reduce the Risk of grid bars 322 being pulled off.

In still other embodiments, the reinforcing structure further includes a reinforcing ring rib 325, which is coaxially disposed with the axle seat 321 and located in the middle position between the axle seat 321 and the outer ring frame 323, and the middle portions of the plurality of grid bars 322 are respectively connected with the axle seat 321. The reinforcing ring ribs 325 are connected to each other, and the reinforcing ring ribs 325 can provide effective support for the middle part of the grid bars 322 .

Optionally, the number of reinforcing ring ribs 325 is one or more. When the number of reinforcement environments is more than two, different reinforcement ring ribs 325 can be respectively arranged on different circumferential lines of the axle seat 321 and the outer ring frame 323 to support and reinforce the grid bars 322 at different radial lengths .

In the above-mentioned embodiment of the plurality of rotating filter screens 32, each component of the rotating filter screen 32 is integrally formed.

In some optional embodiments, the axial projection range of the rotating filter screen 32 can at least cover the auxiliary air inlet 2, which can not only achieve the similar air supply and heat dissipation effect in the previous embodiment, but also can make the rotating filter screen 32 rotate to generate The cross-sectional area of the wind field can cover the maximum air intake area of the auxiliary air inlet 2 to ensure the air intake air volume of the auxiliary air inlet 2; it can also make the rotating filter screen 32 cover most of the area of the auxiliary air inlet 2, so that most of the airflow All can be filtered by the rotating filter 32 before entering the auxiliary air inlet 2 to ensure the filtering effect of the external air.

For the wind drive devices shown in the above-mentioned embodiments, correspondingly, the auxiliary air inlet 2 is further provided with a motor base 21, and the motor base 21 can be used to fix the drive motor 31; as shown in FIG. 2a and FIG. 4, the motor base 21 is a The shape and size of the circular opening are adapted to the drive motor 31 , at least part of the body of the drive motor 31 can be clamped on the motor base 21 , and the auxiliary air inlet 2 is provided with a plurality of holes on the outer periphery of the motor base 21 . There are several mounting holes, and the driving motor 31 can be assembled with the plurality of mounting holes in a screw-fixed manner.

In addition, in order to further improve the filtering effect of the external air flow, in some embodiments, as shown in FIG. 4 , the auxiliary air inlet 2 is ventilated through a plurality of air inlet mesh holes, and the plurality of air inlet mesh holes 22 are arranged at radial intervals. On the outer peripheral side of the motor base 21, the air intake mesh holes 22 have a small aperture and are densely arranged, so the air flow can be filtered by the mesh structure without affecting the air intake volume, so that impurities with a large volume cannot be filtered. into the second chamber.

Here, the air intake mesh holes 22 at the outermost periphery are within the axial projection range of the rotating filter screen 32 .

In some other optional embodiments, as shown in FIG. 2 and FIG. 2 a , the side plate 111 corresponding to the second chamber is further provided with a wiring port 51 , and the wiring port 51 is mainly used for the functional module of the indoor unit. The power supply circuit or the control circuit is connected to the corresponding external circuit; in this embodiment, the auxiliary air inlet 2 is arranged adjacent to the wiring port 51. In the illustration, the wiring port 51 is located at the upper position of the side plate 111, and the auxiliary air inlet 2 is arranged at below the connection port 51 . Here, the outdoor unit of the air conditioner is provided with a wiring cover 52 at the position of the side panel 111 corresponding to the wiring port 51. One of the functions of the wiring cover 52 is to protect the wiring port 51, so as to reduce the rain, snow, rain and snow in the outdoor environment. Erosion damage to the wiring port 51 by sand and dust. In this embodiment, the structural design of the wiring cover 52 is enlarged in size, so that the wiring cover 52 can at least cover the wiring port 51 and the auxiliary inlet, so that the wiring cover 52 can also provide the auxiliary air inlet 2 and the auxiliary air inlet 2. The wind drive device of the air inlet 2 plays a protective role to prolong the service life of both.

Correspondingly, in order to ensure the normal air intake of the auxiliary air inlet 2, the wiring housing 52 is provided with a housing air inlet 521 at the position corresponding to the auxiliary air inlet 2, and the outdoor air flows into the wiring housing 52 and the side plate through the housing air inlet 521. 111, and then flows into the second chamber through the auxiliary air inlet 2.

FIG. 5a is a perspective view of a wiring cover provided by an embodiment of the present disclosure, FIG. 5b is a perspective view of a wiring cover provided by an embodiment of the present disclosure, FIG. 5c is a front view of the wiring cover provided by an embodiment of the present disclosure, and FIG. 5d It is a sectional view taken along the line B-B in Fig. 5c.

5a to 5d, the housing air inlet 521 is composed of a plurality of sub air inlets, and the plurality of sub air inlets are arranged side by side in two rows in the longitudinal direction of the wiring housing 52, and each sub air inlet is thin. The short rectangular shape has a convexly arranged arc-shaped shielding strip on its outer side, and the upper edge and side edge of the shielding strip are respectively connected to the upper edge and side edge of the sub-air inlet, so that the shielding strip and the sub-air inlet are surrounded by A downward opening is formed, through which the external air enters the sub-air inlet, and then flows to the auxiliary air inlet 2 , and the arc-shaped shielding strip can block rain, snow, dust, etc. from above or obliquely above the wiring housing 52 .

In addition, the impurities adsorbed and filtered by the rotating filter screen 32 will be thrown out in the peripheral direction under the centrifugal force of the rotating filter screen 32, and then the impurities will fall down under the action of their own gravity. In this embodiment A dust removal port 522 is provided at the bottom position of the wiring housing 52 corresponding to the auxiliary air inlet 2, and the impurities falling downward can be re-discharged to the outdoor environment through the dust removal port 522, so as to avoid the impurities accumulated in the wiring housing 52 from passing through. There are many problems that interfere with the normal operation of the rotating filter screen 32 or block the auxiliary air inlet 2 .

As shown in FIG. 5 b , the number of dust removal ports 522 is multiple, and they are arranged in two rows on the bottom plate of the wiring housing 52 .

FIG. 6 is a schematic structural diagram of an electric control box provided by an embodiment of the present disclosure.

In some optional embodiments, the electric control assembly 4 includes an electric control box 41 , an electric control module and a heat dissipation module. Referring to FIG. 6 , the electric control box body 41 has a first accommodating portion 411 and a second accommodating portion 412 , wherein the first accommodating portion 411 is used for accommodating one or more electric control modules, and the first accommodating portion 411 is used for accommodating one or more electric control modules. The accommodating portion 411 is located in the second chamber; the second accommodating portion 412 is used for accommodating the heat dissipation module, which extends into the first chamber through the heat dissipation air outlet and is located on the air inlet side of the outdoor unit fan 122. The heat dissipation module is connected to the first chamber. One or more electronic control modules in the accommodating portion 411 are in thermal conductive contact. Therefore, in addition to using the airflow from the second chamber to the first chamber to dissipate heat for the electronic control module by convection heat dissipation, the heat generated by the electronic control module It can also be transferred to the heat dissipation module by means of heat conduction, so that the heat dissipation module is dissipated by air cooling.

In order to ensure that the airflow in the second chamber can flow through the electric control module that needs to be dissipated in the electric control box body 41 and absorb heat to cool down, the first accommodating portion 411 in this embodiment is set to a semi-closed structure. One or more side walls of the accommodating portion 411 are provided in the form of openings, so that the airflow in the second chamber can flow into the first accommodating portion 411 through the openings; at the same time, the first accommodating portion 411 and the second accommodating portion A plurality of ventilation mesh holes 413 are arranged between 412, and the air entering the first accommodating portion 411 can be blown to the cooling air outlet through the ventilation mesh holes 413, and the ventilation mesh holes 413 can be used as a channel for air to flow out of the first accommodating portion 411. , so that the air in the second chamber can continuously flow into the first accommodating portion 411 for heat exchange.

In some other embodiments not shown in the drawings, the outdoor unit further includes an independent cooling air duct, the air inlet end of the cooling air duct is arranged at the auxiliary air inlet 2, and the air outlet is arranged at the first accommodating portion 411, thus, The external air flowing in through the auxiliary air inlet 2 can be directly blown into the first accommodating portion 411 through the cooling air duct for heat exchange. The heat dissipation of the control module can be effectively reduced, and the wind pressure loss of the wind drive device can be effectively reduced, thereby accelerating the heat dissipation efficiency of the external air to the electronic control module.

In some optional embodiments, the intake air volume or the intake air speed of the wind driven device can be controllably adjusted. Here, by adjusting the rotational speed of the drive motor 31 of the wind driving device, the air intake air volume or the air intake air speed through the auxiliary air inlet 2 can be controlled. Optionally, the rotational speed control of the driving motor 31 may be adjusted according to the heat dissipation requirement of the electronic control module or the rotational speed of the fan 122 of the outdoor unit.

In some embodiments, a temperature sensor (not shown in the figure) is provided at the electronic control assembly 4, and the temperature sensor can be used to detect the real-time temperature of the electronic control assembly 4, so the heat dissipation of the electronic control assembly 4 can be judged based on the current real-time temperature of the electronic control assembly 4 When the real-time temperature measured by the electronic control component 4 is high, it means that the heat dissipation requirement is high; otherwise, the heat dissipation requirement is low.

Here, the electronic control assembly 4 further includes a rotational speed control module (not shown in the figure), and the rotational speed control module is electrically connected with the temperature sensor; exemplarily, the rotational speed control module is configured to be less than the first temperature threshold when the temperature detected by the temperature sensor is less than the first temperature threshold. When the temperature is 1, the wind drive device is controlled to supply air with the first air intake air volume or the first air intake wind speed; and when the temperature detected by the temperature detector is greater than or equal to the first temperature threshold, the wind drive device is controlled to supply air with the second air intake air volume Or the second inlet wind speed for air supply. Wherein, the first intake air volume is smaller than the second intake air volume, and the second intake air speed is smaller than the second intake air speed.

Here, the control of the intake air volume or the intake air speed of the wind drive device has a positive correlation with the real-time temperature detected by the temperature sensor, that is, when the heat dissipation demand of the electronic control assembly 4 is determined based on the real-time temperature, adjust the wind The intake air volume of the drive device is increased, and the intake air speed is accelerated, so as to accelerate the heat exchange effect between the air and the electronic control module, and improve the heat dissipation rate. The air intake air volume and the air intake speed of the wind drive device are adjusted to decrease, so as to reduce the operating power consumption of the wind drive device under the condition of satisfying the heat dissipation requirement for the electronic control module.

In still other embodiments, the rotational speed control module is configured to adjust the intake air volume or the intake air speed of the wind driven device according to the rotational speed of the fan 122 of the outdoor unit. Here, when the rotation speed of the fan 122 of the outdoor unit is high, the negative pressure formed on the air inlet side is large, and the negative pressure difference between the first chamber and the second chamber is large, so the external airflow can be faster It flows into the second chamber from the outside at a high speed, and then blows into the first chamber after absorbing heat, and the actual heat dissipation efficiency is faster; on the contrary, the negative pressure on the air inlet side of the outdoor unit fan 122 is small, and the actual heat dissipation efficiency slower. Therefore, in this embodiment, when the actual heat dissipation efficiency is relatively fast, the intake air volume or the intake air speed of the wind driven device can be controlled to decrease, and when the actual heat dissipation efficiency is relatively slow, the intake air of the wind powered device can be controlled to increase Air volume or inlet air speed to adapt to the different heat dissipation requirements of the electronic control components 4.

Exemplarily, when the rotational speed of the outdoor unit fan 122 is less than the first rotational speed threshold, the rotational speed control module controls the wind drive device to supply air at the first inlet air volume or the first inlet air speed; When the rotational speed is greater than or equal to the first rotational speed threshold, the wind driving device is controlled to supply air at the second inlet air volume or the second inlet air speed. Wherein, the first intake air volume is smaller than the second intake air volume, and the second intake air speed is smaller than the second intake air speed.

Embodiments of the present disclosure further provide an air conditioner, where the air conditioner includes the outdoor unit shown in any of the foregoing embodiments.

In the outdoor unit provided by the embodiments of the present disclosure, an auxiliary air inlet and a wind driving device are arranged on the side wall of the chamber where the electronic control assembly is located, and the wind driving device is used to drive the external air flow to flow through the electronic control assembly, thereby not only increasing the flow rate through the electronic control assembly The airflow and flow rate of the components can improve the heat dissipation effect of the electronic control components, and can also reduce the wind pressure diversion to the outdoor unit fan, thereby reducing the adverse effect on the heat exchange efficiency of the outdoor heat exchanger and ensuring the refrigeration performance of the air conditioner.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples represent only possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. An outdoor unit, characterized in that, comprising: an outer casing, the interior of which is divided by a partition to define a first chamber for accommodating a fan and a second chamber for accommodating a compressor; wherein at least one side wall corresponding to the second chamber is An auxiliary air inlet is provided, and the partition is provided with a heat dissipation air outlet corresponding to the air inlet side of the fan and communicating with the first chamber and the second chamber; A wind driving device, arranged at the auxiliary air inlet, is used for driving external air flow into the second chamber through the auxiliary air inlet; the wind driving device comprises: motor; A rotating filter screen, located outside the auxiliary air inlet, is drivingly connected with the driving motor, so as to filter the external air flow during the driving and rotating process by the driving motor; The auxiliary air inlet includes: a motor seat for fixing the drive motor; a plurality of air intake mesh holes are arranged on the outer peripheral side of the motor base in a radial interval; an electric control assembly, located in the second chamber and corresponding to the heat dissipation air outlet, so that the airflow in the second chamber can flow out to the first chamber through the electric control assembly and the heat dissipation air outlet in sequence; The electronic control assembly includes: An electric control box has a first accommodating portion located in the second cavity for accommodating one or more electric control modules, and extends to the first cavity through the heat dissipation air outlet, for accommodating one or more electric control modules. A second accommodating portion for accommodating a heat dissipation module, the heat dissipation module is in thermal conductive contact with the one or more electrical control modules. 2. The outdoor unit according to claim 1, wherein the rotating filter screen comprises: A shaft seat, located at the center of the rotating filter screen, is used for connecting with the output shaft of the driving motor; A plurality of grille bars are arranged on the outer circumference of the shaft seat in a radial interval; at least part of the grille bars are arranged obliquely, so as to form wind force from outside to inside when the rotating filter screen rotates; The outer ring frame is arranged coaxially with the axle seat, and the outer ends of the plurality of grid bars are connected to the outer ring frame. 3 . The outdoor unit according to claim 1 , wherein the rotating filter screen is disposed adjacent to the outer side of the auxiliary air inlet, and the axial projection range can at least cover the auxiliary air inlet. 4 . 4 . The outdoor unit according to claim 1 , wherein a wiring port is further provided on the side wall corresponding to the second chamber, and the auxiliary air inlet is provided adjacent to the wiring port; 5 . The outdoor unit further includes a wiring cover disposed on the outside of the side wall, the wiring cover at least covers the wiring port and the auxiliary air inlet; wherein the wiring cover corresponds to the auxiliary air inlet. The position is provided with a cover air inlet. 5 . The outdoor unit according to claim 4 , wherein a dust outlet is provided at a bottom position of the wiring cover corresponding to the auxiliary air inlet. 6 . 6 . The outdoor unit according to claim 1 , wherein the first accommodating part is a semi-closed structure, so that the airflow in the second cavity can flow into the first accommodating part; the A plurality of ventilation mesh holes are arranged between the first accommodating part and the second accommodating part. 7 . The outdoor unit according to claim 1 , further comprising an independent cooling air duct, the air inlet end of the cooling air duct is arranged at the auxiliary air inlet, and the air outlet is arranged at the first container. 8 . set department. 8. An air conditioner comprising the outdoor unit according to any one of claims 1 to 7.

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