CN111912040A - Outdoor unit and air conditioner - Google Patents
Outdoor unit and air conditioner Download PDFInfo
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- CN111912040A CN111912040A CN202010759832.7A CN202010759832A CN111912040A CN 111912040 A CN111912040 A CN 111912040A CN 202010759832 A CN202010759832 A CN 202010759832A CN 111912040 A CN111912040 A CN 111912040A
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- air inlet
- outdoor unit
- chamber
- air
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 69
- 238000005192 partition Methods 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 21
- 230000002829 reductive effect Effects 0.000 abstract description 13
- 230000001965 increasing effect Effects 0.000 abstract description 11
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 description 15
- 239000003507 refrigerant Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 241000883990 Flabellum Species 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to the technical field of air conditioner 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 heat-dissipation air outlet; the wind power driving device is used for driving external air flow to flow into the second chamber through the auxiliary air inlet; and the electric control assembly is positioned in the second cavity and corresponds to the heat dissipation air outlet. The outdoor unit provided by the embodiment of the disclosure is provided with the auxiliary air inlet and the wind power driving device through the side wall of the cavity where the electric control assembly is located, and the wind power driving device is used for driving external air flow to flow through the electric control assembly, so that the air flow and the flow velocity of the flowing through electric control assembly can be increased, the heat dissipation effect on the electric control assembly is improved, the air pressure shunt to an outdoor unit fan can be reduced, the adverse effect on the heat exchange efficiency of an outdoor heat exchanger is reduced, and the refrigeration performance of an air conditioner is guaranteed. The application also discloses an air conditioner applying the outdoor unit.
Description
Technical Field
The application relates to the technical field of air conditioner heat dissipation, for example, relate to an outdoor unit and air conditioner.
Background
When the air conditioner operates in high-temperature weather in summer, because the outdoor environment temperature is higher, heat generated by operation of an electric control assembly such as a computer board arranged in an outdoor unit cannot be timely discharged, the temperature of the electric control assembly is higher and higher, and then the problem of high-temperature damage is easily caused. In the related art, in order to solve the above problem, heat dissipation modules such as heat dissipation fins are generally used to reduce the temperature of electrical components on the electronic control assembly, and the heat dissipation module is generally installed on one side of the electronic control assembly to take away the heat of the heat dissipation module and the electronic control assembly by means of negative pressure wind generated by rotation of a fan.
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 electric control assembly of the existing outdoor unit is generally arranged in a compressor chamber isolated from a fan chamber where a fan is located, and the compressor chamber is relatively closed, so that more negative pressure of the fan needs to be consumed to blow air flow in the compressor chamber out to the fan chamber after passing through the electric control assembly, therefore, under the actual working condition of the outdoor unit, the problems of low air flow speed and low heat dissipation effect caused by less negative pressure on the side of the electric control assembly can be solved, meanwhile, the air flow speed flowing through the outdoor heat exchanger can be slowed down due to the diversion of partial negative pressure of the fan, and further, the heat exchange effect of the outdoor heat exchanger can be reduced, and the refrigeration performance of the air conditioner is influenced.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides an outdoor unit and an air conditioner, and aims to solve the technical problems that in the related art, the heat dissipation form of an electric control assembly is low in heat dissipation effect and the refrigeration performance of the air conditioner is affected.
In some embodiments, the outdoor unit includes:
the inner part of the outer machine shell is divided by a partition plate to define a first cavity for containing the fan and a second cavity for containing the compressor; the second cavity is provided with an auxiliary air inlet on at least one side wall corresponding to the second cavity, and the partition board is provided with a heat dissipation air outlet corresponding to the air inlet side of the fan and communicating the first cavity with the second cavity;
the wind power driving device is arranged at the auxiliary air inlet and is used for driving external air flow to flow into the second chamber through the auxiliary air inlet;
and the electric control assembly is positioned in the second cavity and corresponds to the heat dissipation air outlet, so that the airflow in the second cavity can flow out to the first cavity through the electric control assembly and the heat dissipation air outlet in sequence.
In some alternative embodiments, the wind power driving apparatus includes:
a drive motor;
and the rotary filter screen is positioned outside the auxiliary air inlet and is in driving connection with the driving motor so as to filter external air flow in the driving and rotating process of the driving motor.
In some alternative embodiments, the rotary screen comprises:
the shaft seat is positioned in the center of the rotary filter screen and is used for being connected with an output shaft of the driving motor;
a plurality of grid bars arranged on the periphery of the shaft seat in a radial shape at intervals; at least part of the grid bars are obliquely arranged so as to form wind power from outside to inside when the rotary filter screen rotates;
and the outer ring frame is coaxially arranged with the shaft seat, and the outer end parts of the grid bars are connected to the outer ring frame.
In some alternative embodiments, the rotary filter screen is disposed immediately outside the auxiliary air inlet, and the axial projection range at least covers the auxiliary air inlet.
In some optional embodiments, the secondary air intake includes:
the motor base is used for fixing the driving motor;
and the plurality of air inlet meshes are radially arranged on the outer peripheral side of the motor base at intervals.
In some optional embodiments, a wiring port is further disposed on a corresponding side wall of the second chamber, and the auxiliary air inlet is disposed adjacent to the wiring port;
the outdoor unit also comprises a wiring cover shell arranged on the outer side of the side wall, and the wiring cover shell at least covers a wiring port and an auxiliary air inlet; wherein, the position of the wiring housing corresponding to the auxiliary air inlet is provided with a housing air inlet.
In some optional embodiments, a dust outlet is arranged at the bottom position of the junction box housing corresponding to the auxiliary air inlet.
In some alternative embodiments, the electronic control assembly comprises:
the electronic control box body is provided with a first accommodating part which is positioned in the second chamber and used for accommodating one or more electronic control modules, and a second accommodating part which extends to the first chamber through the heat-radiating air outlet and is used for accommodating the heat-radiating module, and the heat-radiating module is in thermal conductive contact with one or more electronic control modules;
the first accommodating part is of a semi-closed structure, so that the airflow in the second chamber can flow into the first accommodating part; a plurality of ventilation meshes are arranged between the first accommodating part and the second accommodating part.
In some optional embodiments, the outdoor unit further includes an independent heat dissipation air duct, an air inlet end of the heat dissipation air duct is disposed at the auxiliary air inlet, and an air outlet is disposed at the first accommodating portion.
In still other embodiments, the air conditioner includes an outdoor unit as described in any of the above embodiments.
The outdoor unit provided by the embodiment of the disclosure can achieve the following technical effects:
the outdoor unit provided by the embodiment of the disclosure is provided with the auxiliary air inlet and the wind power driving device through the side wall of the cavity where the electric control assembly is located, and the wind power driving device is used for driving external air flow to flow through the electric control assembly, so that the air flow and the flow velocity of the flowing through electric control assembly can be increased, the heat dissipation effect on the electric control assembly is improved, the air pressure shunt to an outdoor unit fan can be reduced, the adverse effect on the heat exchange efficiency of an outdoor heat exchanger is reduced, and the refrigeration performance of an air conditioner is guaranteed.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural diagram of an outdoor unit according to an embodiment of the present disclosure;
FIG. 2 is a partial exploded view of FIG. 1;
FIG. 2a is an enlarged view of a portion A of FIG. 2;
FIG. 3 is a schematic diagram of a rotary screen according to an embodiment of the present disclosure;
fig. 4 is a schematic structural view of an outdoor unit side panel according to an embodiment of the present disclosure;
fig. 5a is a first perspective view of a wire connection housing provided by an embodiment of the present disclosure;
fig. 5b is a second perspective view of a junction box housing provided by an embodiment of the present disclosure;
fig. 5c is a front view of a wire connection enclosure provided by an embodiment of the present disclosure;
FIG. 5d is a cross-sectional view taken along line B-B of FIG. 5 c;
fig. 6 is a schematic structural diagram of an electronic control box provided in the embodiment of the present disclosure.
Wherein, 11, outer machine shell; 111. a side plate; 112. a partition plate; 121. a heat exchanger; 122. a fan; 123. a compressor; 124. a liquid storage tank; 2. an auxiliary air inlet; 21. a motor base; 22. an air inlet mesh; 31. a drive motor; 32. rotating the filter screen; 321. a shaft seat; 322. grid bars; 323. an outer ring frame; 324. a reinforcing rib plate; 325. reinforcing ring ribs; 4. an electronic control assembly; 41. an electric control box body; 411. a first receptacle portion; 412. a second receptacle portion; 413. ventilating mesh holes; 51. a wiring port; 52. a wire connection housing; 521. an air inlet of the housing; 522. and a dust outlet.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order 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 in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
Fig. 1 is a schematic structural view of an outdoor unit according to an embodiment of the present disclosure, and fig. 2 is a partial exploded view of fig. 1.
With reference to fig. 1 and 2, an outdoor unit according to an embodiment of the present disclosure includes an outdoor unit casing 11 and a plurality of functional modules; the outer machine casing 11 is made of hard materials, such as aluminum alloy, stainless steel and the like, a cavity for accommodating the functional modules is defined inside the outer machine casing, and the cavity can play a role of protecting the functional modules so as to reduce adverse effects of outdoor environment on normal operation of the functional modules; the functional module mainly comprises a heat exchanger 121, a fan 122, a compressor 123, a liquid storage tank 124, an electric control assembly 4 and the like; the heat exchanger 121 is used for heat exchange between a refrigerant and an outdoor environment, and specifically includes that the refrigerant releases heat to the outdoor environment in a refrigeration or dehumidification mode, and the refrigerant absorbs heat from the outdoor environment in a heating mode; the fan 122 is configured to drive airflow of the outdoor environment to flow through the heat exchanger 121, so that the refrigerant continuously exchanges heat with outdoor airflow newly conveyed by the fan 122; the compressor 123 is configured to perform a compression operation on the refrigerant, so that the refrigerant can reach a set high-temperature and high-pressure state; the liquid storage tank 124 is used for storing a refrigerant and distributing the refrigerant in a gas-liquid state; the electronic control assembly 4 is a component for implementing a control function, and can control the operation parameters of the functional modules such as the compressor 123, the fan 122 and the like according to a preset program.
In the embodiment, the outer casing 11 is a substantially rectangular casing structure composed of six panels, i.e., a front panel, a back panel, a top panel, a bottom panel and two side panels 111; the chambers of the outer casing 11 may be formed by separating with partition plates 112, the number of the chambers is two or more, the chambers are independent from each other, and each chamber may 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 in the chamber, so that interference between the functional modules arranged in different chambers is reduced, and normal and stable operation of each functional module is ensured.
In this embodiment, as seen from the front view shown in fig. 1, the outer casing 11 is partitioned by a vertically disposed partition plate 112 to define a first chamber and a second chamber, the longitudinal end edges of the partition plate 112 are respectively and fixedly connected to the top plate and the bottom plate of the outer casing 11, and the transverse end edges are respectively and 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 only a little air flow or no air flow flows between the two chambers. In the drawing, the first cavity is located on the left side of the outer machine casing 11, the second cavity is located on the right side of the outer machine casing 11, and the respective spatial volumes of the two cavities are determined according to the sizes of the functional modules respectively accommodated in the two cavities, in this embodiment, the first cavity is mainly used as a cavity for accommodating the fan 122 and the heat exchanger 121, and the second cavity is mainly used as a cavity for accommodating the compressor 123, the liquid storage tank 124 and the electronic control component 4, so that the spatial volume of the first cavity is larger than that of the second room. In an embodiment, the panels enclosing the second chamber include a front panel, a back panel, right side portions of the top and bottom panels, a right side panel 111, and a partition panel 112.
In this embodiment, the side wall corresponding to the second chamber is provided with an auxiliary air inlet 2, and the auxiliary air inlet 2 can communicate the outdoor environment with the second chamber, so that air can circulate between the outdoor environment and the second chamber; this application technical scheme is mainly injectd the air current and gets into the unidirectional flow in the second chamber from outdoor environment via supplementary air intake 2, compares in comparatively confined compressor 123 cavity in conventional art, and the supplementary air intake 2 of newly seting up makes the second chamber become semi-closed cavity and can effectively increase intake and wind pressure in the second cavity, therefore can the greatly reduced negative pressure loss of fan 122 in the first cavity when dispelling the heat to automatically controlled subassembly 4.
In some embodiments, the number of the auxiliary air inlets 2 may be 1, or 2, 3, and so on, and the specific number of the auxiliary air inlets 2 may be determined according to the actual air volume required for heat dissipation, for example, when the actual air volume required for heat dissipation is large, the number of the auxiliary air inlets 2 may be set to 3, and when the actual air volume required for heat dissipation is small, the number of the auxiliary air inlets 2 may be set to 1.
Alternatively, for the outdoor unit with 1 auxiliary air inlet 2, the auxiliary air inlet 2 may be disposed on one of the front plate, the back plate, the top plate, the bottom plate and the side plate 111, such as the auxiliary air inlet 2 disposed on the side plate 111 in the embodiment of fig. 1. Wherein to setting up supplementary air intake 2 on the roof, because supplementary air intake 2 is that the orientation is upwards, in the sleet easily gets into the second cavity via this supplementary air intake 2 in the bad weather, long-term use can make the function module in the second cavity ageing accelerate, reduce life, consequently need additionally set up the structure that shelters from of rain-proof snow, like parts such as weather shield.
For the outdoor units having the number of the auxiliary air inlets 2 exceeding 1, the auxiliary air inlets 2 may be disposed on one or more of the front panel, the back panel, the top panel, the bottom panel and the side panels 111. In an optional embodiment, 1 auxiliary air inlet 2 is respectively disposed on a plurality of panels of the outdoor unit, for example, 1 auxiliary air inlet 2 is disposed on each of the front panel and the side panel 111; in another alternative embodiment, a plurality of auxiliary air inlets 2 are disposed on the same panel of the outdoor unit, for example, 2 or 3 auxiliary air inlets 2 are disposed on the same panel 111. Here, the arrangement form of the plurality of auxiliary air inlets 2 may be flexibly adjusted according to specific heat dissipation requirements, and the present application is not limited thereto.
In some alternative embodiments, the structural form of the auxiliary intake vent 2 may be a symmetrical regular shape such as a circle, an ellipse, a square, or other asymmetrical irregular shapes, which is not limited in this application. In the present exemplary embodiment, the design of the secondary air inlet 2 is selected to be circular.
In this embodiment, the partition plate 112 is provided with a heat dissipation air outlet, and the heat dissipation air outlet can communicate the second chamber with the second chamber, so that air can circulate between the first chamber and the second chamber; this application technical scheme is mainly injectd the air current and gets into the one-way flow in the first chamber from the second chamber via heat dissipation air outlet, simultaneously because curb plate 111 sets up for baffle 112, the air current that supplementary air intake 2 got into on the curb plate 111 flows to heat dissipation air outlet behind the most part position of automatically controlled subassembly 4, the air current can carry out heat exchange with most of components and parts of automatically controlled subassembly 4 at the flow in-process, therefore can effectively guarantee the holistic radiating effect to automatically controlled subassembly 4.
Here, the outer unit casing 11 of the outer unit is provided with an outer unit air inlet at a back plate position corresponding to the first chamber, an outer unit air outlet at a front plate position, and the fan 122 is located between the outer unit air inlet and the outer unit air outlet, and the flow direction of the air flow generated by the operation of the fan is from the outer unit air inlet to the outer unit air outlet, so that the side close to the back plate (or the outer unit air inlet) is the air inlet side of the fan 122, and the side close to the front plate (or the outer unit air outlet) is the air. The heat dissipation air outlet is arranged corresponding to the air inlet side of the fan 122. In this embodiment, the heat dissipation air outlet is disposed 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 with the outdoor environment, and the second chamber is communicated with the outdoor environment through the auxiliary air inlet 2, and the pressure state is the same, so that the air pressure of the heat dissipation air outlet corresponding to the first chamber side is lower than that of the second chamber side, and the air in the second chamber can flow into the first chamber under the driving of the negative pressure. ,
in the embodiment shown in fig. 1, the heat dissipation air outlet is located at the top of the partition 112 and near one side of the back plate. The electric control assembly 4 is arranged corresponding to the heat dissipation air outlet, so that air flow in the second cavity can flow out of the first cavity through the electric 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 is branched when the driving airflow flows 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 auxiliary air inlet 2, which is used for driving the external airflow to flow into the second chamber through the auxiliary air inlet 2, when the wind driving device is operated, the air in the outdoor environment can be continuously sent into the second chamber, the air volume in the second chamber is increased, and the air pressure in the second chamber is increased, so that the air pressure difference between the second chamber and the first chamber is increased, thereby increasing the airflow flow and the airflow velocity flowing through the electronic control component 4, and further enhancing the heat dissipation efficiency. Particularly, when the fan 122 of the outdoor unit operates at a low rotation speed, the negative pressure on the air inlet side is low, the heat dissipation airflow generated by the driving of the split negative pressure is low, and the flow speed is low, and at the moment, the flow rate and the flow speed of the heat dissipation airflow can be accelerated by increasing the positive pressure of the second chamber by operating the wind power driving device, so that the heat dissipation effect on the electronic control assembly 4 is ensured.
In some embodiments not shown in the drawings, the wind power driving device comprises a driving motor 31 and a plurality of blades, the plurality of blades are in driving connection with the driving motor 31, and the driving motor 31 is electrically connected with a power supply circuit of the outdoor unit; after the driving motor 31 is powered on, the driving motor 31 drives the plurality of blades to rotate, so as to generate wind power for driving the airflow to flow from the outdoor side to the second chamber.
In this embodiment, the axial projection scope of flabellum can cover supplementary air intake 2 at least, and the wind field cross sectional area that the flabellum is rotatory to be produced can cover the biggest area of admitting air of supplementary air intake 2, can effectively guarantee the air inlet amount of wind of supplementary air intake 2, and then promotes the radiating effect to automatically controlled subassembly 4.
Optionally, the number of the fan blades may be three blades, or five blades, etc., which is not limited in this application.
In some alternative embodiments, as shown in fig. 2a, the wind power driving device includes a driving motor 31 and a rotary screen 32, similar to the previous embodiment, the rotary screen 32 is drivingly connected to the driving motor 31, the driving motor 31 is electrically connected to the power supply circuit of the outdoor unit, and after the driving motor 31 is powered on, the driving motor 31 rotates the rotary screen 32, so as to generate the wind power for driving the airflow from the outdoor side to the second chamber. Compare in the preceding embodiment, this embodiment replaces the flabellum for rotary filter screen 32, and rotary filter screen 32 not only can produce wind-force at the operation in-process, can also utilize self filter screen characteristic to realize the filtering action of going on to the outside simultaneously, filters impurity such as dust, branches and leaves mixed in the air current for the air current after filtering is in comparatively clean state, has effectively ensured the inside cleanliness factor of second cavity in the long-term use of off-premises station.
In an embodiment, the rotary screen 32 is located outside the secondary intake vent 2, so that impurities can be filtered before entering the secondary intake vent 2. Here, the rotary screen 32 is disposed adjacent to the outer side of the auxiliary air inlet 2, so that the axial gap distance between the rotary screen 32 and the auxiliary air inlet 2 is reduced without interfering with the normal rotation of the rotary screen 32, so as to reduce the airflow flowing in from the outer peripheral side of the rotary screen 32 through the gap, so that most of the airflow is filtered by the rotary screen 32 and then enters the auxiliary air inlet 2, and the filtering effect on the external air is further ensured.
Fig. 3 is a schematic structural diagram of a rotary screen according to an embodiment of the present disclosure.
In some alternative embodiments, as shown in connection with FIG. 3, the rotary screen 32 includes a shaft mount 321, a plurality of grate bars 322, and an outer ring frame 323. Wherein, axle bed 321 is located rotary filter 32's central point and puts, and it is used for the output shaft with driving motor 31, when the output shaft rotated, can drive axle bed 321 and affiliated rotary filter 32 and rotate: a plurality of grid bars 322 are radially arranged at intervals on the periphery of the shaft seat 321, and can be used for filtering air flow passing through the shaft seat; the outer ring frame 323 and the shaft seat 321 are coaxially arranged, the outer ring frame 323 mainly plays a role in shaping and supporting, and the outer end parts of the grid bars 322 are connected to the outer ring frame 323.
In the embodiment, the shaft seat 321 is a flat column-shaped boss structure, a shaft hole is formed in the shaft seat along the axial direction of the shaft seat, and the output shaft of the driving motor 31 extends into the shaft hole to be matched and fixed with the shaft seat 321; optionally, a thin ring plate is further formed on the outer periphery of the shaft seat 321, and the inner end portions of the plurality of grid bars 322 are fixedly connected with the ring plate.
In the present embodiment, at least some of the plurality of grill bars 322 are arranged diagonally to form an outward-inward wind force when the rotary screen 32 rotates; in order to enable the rotary filter screen 32 to be evenly stressed in the rotating process, the obliquely arranged grid bars 322 are evenly distributed on the rotary filter screen 32 and are arranged in an equidistant mode.
In order to improve the deformation resistance of the rotary filter screen 32 during the rotation process, the rotary filter screen 32 is further provided with a reinforcing structure, in some embodiments, the reinforcing structure includes a plurality of reinforcing ribs 324, the plurality of reinforcing ribs 324 are uniformly arranged along the outer circumferential direction of the shaft seat 321 in an equidistant manner, here, each reinforcing rib 324 extends and is formed along the radial direction of the rotary filter screen 32, and two ends of each reinforcing rib are respectively fixed with the shaft seat 321 and the outer ring frame 323; the reinforcing ribs 324 can improve the connection strength between the outer ring frame 323 and the shaft seat 321, reduce the tension applied to the grid bars 322 by the tendency that the outer ring frame 323 expands and moves towards the outer periphery under the action of centrifugal force in the rotating process, and reduce the risk that the grid bars 322 are broken by pulling.
In still other embodiments, the reinforcing structure further includes a reinforcing ring rib 325, which is disposed coaxially with the shaft seat 321 and located at a middle position between the shaft seat 321 and the outer ring frame 323, and the middle portions of the plurality of grid bars 322 are respectively connected to the reinforcing ring rib 325, and the reinforcing ring rib 325 can provide effective support for the middle portions of the grid bars 322.
Optionally, the number of the reinforcement ring beads 325 is one or more. When the number of the reinforcing environments is more than two, different reinforcing ring ribs 325 may be respectively disposed on different circumferential lines of the shaft seat 321 and the outer ring frame 323, so as to support and reinforce the grid bars 322 at different radial lengths.
In the above-described multiple rotary screen 32 embodiments, the various components of the rotary screen 32 are of unitary construction.
In some optional embodiments, the axial projection range of the rotary filter screen 32 can at least cover the auxiliary air inlet 2, so that not only can a similar air supply and heat dissipation effect in the previous embodiment be realized, but also the cross-sectional area of an air field generated by the rotation of the rotary filter screen 32 can cover the maximum air inlet area of the auxiliary air inlet 2, and the air inlet volume of the auxiliary air inlet 2 is ensured; and the rotary filter screen 32 can cover most of the area of the auxiliary air inlet 2, so that most of air flow can be filtered by the rotary filter screen 32 and then enters the auxiliary air inlet 2, and the filtering effect on external air is ensured.
For the wind power driving device shown in the above embodiments, correspondingly, the auxiliary air inlet 2 is further provided with a motor base 21, and the motor base 21 can be used for fixing the driving motor 31; as shown in fig. 2a and 4, the motor base 21 is a circular opening, the shape and size of which are matched with those of the driving motor 31, at least a part of the body of the driving motor 31 can be clamped on the motor base 21, and the auxiliary air inlet 2 is provided with a plurality of mounting holes on the periphery of the motor base 21, and the driving motor 31 can be assembled with the plurality of mounting holes in a screw fixing 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 ventilates through a plurality of air inlet meshes, the plurality of air inlet meshes 22 are radially arranged on the outer peripheral side of the motor base 21 at intervals, and the apertures of the air inlet meshes 22 are small and densely arranged, so that the air flow can be filtered by using a mesh structure under the condition of not influencing the air inlet amount, and impurities with large volume cannot enter the second cavity.
Here, the air intake mesh 22 at the outermost periphery is within the axial projection range of the rotary screen 32.
In still other alternative embodiments, as shown in fig. 2 and fig. 2a, 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 connecting a power supply circuit or a control circuit of a functional module of the indoor unit with an external corresponding circuit; in the present embodiment, the auxiliary air inlet 2 is disposed adjacent to the wiring port 51, in the illustration, the wiring port 51 is located at an upper position of the side plate 111, and the auxiliary air inlet 2 is disposed below the wiring port 51. Here, the outdoor unit of the air conditioner is provided with the terminal housing 52 at a position of the side plate 111 corresponding to the terminal port 51, and one of functions of the terminal housing 52 is to protect the terminal port 51 to reduce erosion damage of rain, snow and dust in the outdoor environment to the terminal port 51. The size of the structural design of the wiring housing 52 is increased in the embodiment, so that the wiring housing 52 can at least cover the wiring port 51 and the auxiliary inlet, and the wiring housing 52 can also play a role in protecting the auxiliary air inlet 2 and the wind power driving device arranged at the auxiliary air inlet 2, so as to prolong the service lives of the auxiliary air inlet 2 and the wind power driving device.
Correspondingly, in order to ensure normal air intake of the auxiliary air inlet 2, a housing air inlet 521 is disposed at a position of the connection housing 52 corresponding to the auxiliary air inlet 2, and the outdoor air flow flows into a protection space defined by the connection housing 52 and the side plate 111 through the housing air inlet 521, and then flows into the second chamber through the auxiliary air inlet 2.
Fig. 5a is a first perspective view of a terminal enclosure provided in an embodiment of the present disclosure, fig. 5B is a second perspective view of a terminal enclosure provided in an embodiment of the present disclosure, fig. 5c is a front view of a terminal enclosure provided in an embodiment of the present disclosure, and fig. 5d is a sectional view taken along line B-B of fig. 5 c.
With reference to the embodiments shown in fig. 5a to 5d, the housing air inlet 521 is composed of a plurality of sub air inlets, the plurality of sub air inlets are arranged side by side in two rows in the longitudinal direction of the terminal housing 52, each sub air inlet is in a thin and short rectangular shape, an arc-shaped shielding strip is provided at the outer side of the sub air inlet, the upper edge and the side edge of the shielding strip are respectively connected to the upper edge and the side edge of the sub air inlet, so that a downward opening is defined between the shielding strip and the sub air inlet, the external air flow enters the sub air inlet through the downward opening and further flows to the auxiliary air inlet 2, and the arc-shaped shielding strip can block rain, snow, dust and the like from the upper side or the oblique upper side of the terminal housing 52.
In addition, to the impurity that rotary filter screen 32 adsorbs the filtering, it can be thrown away to the peripheral direction under the centrifugal force effect of rotary filter screen 32, afterwards, impurity can drop downwards under the effect of self gravity, be provided with dust removal mouth 522 in the bottom position that corresponds supplementary air intake 2 of wire connection housing 52 in this embodiment, the impurity that drops downwards can discharge to outdoor environment again via this dust removal mouth 522 to avoid piling up too much and disturbing rotary filter screen 32 normal operating or the problem of blockking up supplementary air intake 2 in the wire connection housing 52.
As shown in fig. 5b, the dust removing openings 522 are provided in two rows on the bottom plate of the terminal housing 52.
Fig. 6 is a schematic structural diagram of an electronic control box provided in the embodiment of the present disclosure.
In some alternative embodiments, the electronic control assembly 4 comprises an electronic control box 41, an electronic control module and a heat dissipation module. As shown in fig. 6, the electrical control box 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 electrical control modules, and the first accommodating portion 411 is located in the second chamber; the second accommodating portion 412 is used for accommodating a 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, and the heat dissipation module is in thermal conductive contact with one or more electronic control modules in the first accommodating portion 411, so that heat generated by the electronic control modules can be transferred to the heat dissipation module in a thermal conductive manner, in addition to the heat dissipation of the electronic control modules in a convection heat dissipation manner by using the airflow flowing from the second chamber to the first chamber, so that the heat dissipation module dissipates heat in an air cooling manner.
In order to ensure that the airflow in the second chamber can flow through the electronic control module to be cooled in the electronic control box 41 and absorb heat to cool, the first accommodating portion 411 in this embodiment is a semi-closed structure, and specifically, one or more side walls of the first accommodating portion 411 may be set to be in an open form, so that the airflow in the second chamber can flow into the first accommodating portion 411 through the opening; meanwhile, a plurality of ventilation meshes 413 are disposed between the first accommodating portion 411 and the second accommodating portion 412, air entering the first accommodating portion 411 can be blown to the heat dissipation air outlet through the ventilation meshes 413, and the ventilation meshes 413 can serve as channels through which the air flows 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 still other embodiments not shown in the drawings, the outdoor unit further includes an independent heat dissipation air duct, an air inlet end of the heat dissipation air duct is disposed at the auxiliary air inlet 2, and an air outlet is disposed at the first accommodating portion 411, so that the external air flowing in through the auxiliary air inlet 2 can directly blow into the first accommodating portion 411 through the heat dissipation air duct for heat exchange.
In some optional embodiments, the air intake quantity or the air intake speed of the wind power driving device can be controllably adjusted. Here, the intake air amount or the intake air speed through the auxiliary intake port 2 can be controlled by adjusting the rotational speed of the drive motor 31 of the wind power drive apparatus. Alternatively, the rotation speed of the driving motor 31 may be controlled by adjusting the heat dissipation requirement of the electronic control module or the rotation speed of the fan 122 of the outdoor unit.
In some embodiments, a temperature sensor (not shown in the figure) is disposed at the electric control component 4, and the temperature sensor can be used for detecting the real-time temperature of the electric control component 4, so that the heat dissipation requirement of the electric control component 4 can be determined according to the current real-time temperature of the electric control component 4, when the real-time temperature measured by the electric control component 4 is higher, the heat dissipation requirement is high, and otherwise, the heat dissipation requirement is low.
Here, the electronic control assembly 4 further comprises a rotation speed control module (not shown in the figure), which is electrically connected with the temperature sensor; illustratively, the rotation speed control module is configured to control the wind power driving device to blow air at a first air inlet quantity or a first air inlet speed when the temperature detected by the temperature sensor is less than a first temperature threshold value; and when the temperature detected by the temperature detector is greater than or equal to the first temperature threshold value, controlling the wind power driving device to supply air by using the second air inlet quantity or the second air inlet speed. The first air inlet air quantity is smaller than the second air inlet air quantity, and the second air inlet air speed is smaller than the second air inlet air speed.
Here, the control of the air intake volume or the air intake speed of the wind power driving device is in a positive correlation with the real-time temperature detected by the temperature sensor, that is, under the condition that the heat dissipation requirement of the electronic control assembly 4 is judged to be high based on the real-time temperature, the air intake volume of the wind power driving device is adjusted to be increased and the air intake speed is adjusted to be accelerated, so that the heat exchange effect between the air and the electronic control module is accelerated, and the heat dissipation rate is improved; and under the condition that the heat dissipation requirement of the electric control assembly 4 is judged to be low based on the real-time temperature, the air inlet quantity and the air inlet speed of the wind power driving device are adjusted to be reduced, so that the running power consumption of the wind power driving device is reduced under the condition that the heat dissipation requirement of the electric control module is met.
In still other embodiments, the speed control module is configured to adjust the amount of intake air or the speed of intake air of the wind driven device according to the speed of the outdoor unit fan 122. Here, when the rotation speed of the outdoor unit fan 122 is high, the negative pressure formed on the air inlet side is high, and the negative pressure difference between the first chamber and the second chamber is large, so that the external air flow can flow 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 high; on the contrary, the negative pressure on the air inlet side of the outdoor unit fan 122 is low, and the actual heat dissipation efficiency is low. Therefore, in this embodiment, the air inlet volume or the air inlet speed of the wind driving device can be controlled to be reduced under the condition that the actual heat dissipation efficiency is relatively high, and the air inlet volume or the air inlet speed of the wind driving device can be controlled to be increased under the condition that the actual heat dissipation efficiency is relatively low, so as to adapt to different heat dissipation requirements of the electronic control component 4.
For example, when the rotation speed of the outdoor unit fan 122 is less than the first rotation speed threshold, the rotation speed control module controls the wind power driving device to supply air at a first air inlet amount or a first air inlet speed; and when the rotating speed of the outdoor unit fan 122 is greater than or equal to the first rotating speed threshold value, controlling the wind power driving device to supply air by the second air inlet quantity or the second air inlet speed. The first air inlet air quantity is smaller than the second air inlet air quantity, and the second air inlet air speed is smaller than the second air inlet air speed.
The embodiment of the disclosure also provides an air conditioner, which comprises the outdoor unit shown in any one of the embodiments.
The outdoor unit provided by the embodiment of the disclosure is provided with the auxiliary air inlet and the wind power driving device through the side wall of the cavity where the electric control assembly is located, and the wind power driving device is used for driving external air flow to flow through the electric control assembly, so that the air flow and the flow velocity of the flowing through electric control assembly can be increased, the heat dissipation effect on the electric control assembly is improved, the air pressure shunt to an outdoor unit fan can be reduced, the adverse effect on the heat exchange efficiency of an outdoor heat exchanger is reduced, and the refrigeration performance of an air conditioner is guaranteed.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 (10)
1. An outdoor unit, comprising:
the inner part of the outer machine shell is divided by a partition plate to define a first cavity for containing the fan and a second cavity for containing the compressor; the partition board is provided with a heat dissipation air outlet which corresponds to the air inlet side of the fan and is communicated with the first cavity and the second cavity;
the wind power driving device is arranged at the auxiliary air inlet and is used for driving external air flow to flow into the second chamber through the auxiliary air inlet;
and the electric control assembly is positioned in the second chamber and is arranged corresponding to the heat dissipation air outlet, so that the airflow in the second chamber can flow out of the first chamber through the electric control assembly and the heat dissipation air outlet in sequence.
2. The outdoor unit of claim 1, wherein the wind driving unit comprises:
a drive motor;
and the rotary filter screen is positioned outside the auxiliary air inlet and is in driving connection with the driving motor so as to filter the external air flow in the driving rotation process of the driving motor.
3. The outdoor unit of claim 2, wherein the rotary screen comprises:
the shaft seat is positioned in the center of the rotary filter screen and is used for being connected with an output shaft of the driving motor;
the grid bars are radially arranged on the periphery of the shaft seat at intervals; at least part of the grid bars are obliquely arranged so as to form wind power from outside to inside when the rotary filter screen rotates;
and the outer ring frame is coaxially arranged with the shaft seat, and the outer end parts of the grid bars are connected to the outer ring frame.
4. The outdoor unit of claim 2 or 3, wherein the rotary screen is disposed adjacent to an outer side of the auxiliary air inlet, and an axial projection range of the rotary screen at least covers the auxiliary air inlet.
5. The outdoor unit of claim 4, wherein the auxiliary air inlet comprises:
the motor base is used for fixing the driving motor;
and the plurality of air inlet meshes are radially arranged on the outer peripheral side of the motor base at intervals.
6. The outdoor unit of claim 1, wherein the side wall of the second chamber is further provided with a connection port, and the auxiliary air inlet is disposed adjacent to the connection port;
the outdoor unit further comprises a wiring cover shell arranged on the outer side of the side wall, and the wiring cover shell at least covers the wiring port and the auxiliary air inlet; and a housing air inlet is formed in the position, corresponding to the auxiliary air inlet, of the wiring housing.
7. The outdoor unit of claim 6, wherein a dust outlet is formed at a bottom of the terminal housing corresponding to the auxiliary air inlet.
8. The outdoor unit of claim 1, wherein the electric control assembly comprises:
the electronic control box body is provided with a first accommodating part which is positioned in the second cavity and used for accommodating one or more electronic control modules, and a second accommodating part which extends to the first cavity through the heat-radiating air outlet and is used for accommodating a heat-radiating module, and the heat-radiating module is in thermal conductive contact with the one or more electronic control modules;
the first accommodating part is of a semi-closed structure, so that the airflow in the second chamber can flow into the first accommodating part; a plurality of ventilation meshes are arranged between the first accommodating part and the second accommodating part.
9. The outdoor unit of claim 8, further comprising independent heat dissipation air ducts, wherein air inlet ends of the heat dissipation air ducts are disposed at the auxiliary air inlets, and air outlets of the heat dissipation air ducts are disposed at the first accommodating portion.
10. An air conditioner characterized by having the outdoor unit of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010759832.7A CN111912040B (en) | 2020-07-31 | 2020-07-31 | Outdoor unit and air conditioner |
| PCT/CN2020/130673 WO2021227434A1 (en) | 2020-07-31 | 2020-11-20 | Outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010759832.7A CN111912040B (en) | 2020-07-31 | 2020-07-31 | Outdoor unit and air conditioner |
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| CN111912040A true CN111912040A (en) | 2020-11-10 |
| CN111912040B CN111912040B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010759832.7A Active CN111912040B (en) | 2020-07-31 | 2020-07-31 | Outdoor unit and air conditioner |
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| Country | Link |
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| CN (1) | CN111912040B (en) |
| WO (1) | WO2021227434A1 (en) |
Cited By (3)
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| CN113405171A (en) * | 2021-05-06 | 2021-09-17 | 浙江中广电器股份有限公司 | Heat dissipation device for electric control device of variable frequency air conditioner |
| WO2021227434A1 (en) * | 2020-07-31 | 2021-11-18 | 青岛海尔空调器有限总公司 | Outdoor unit and air conditioner |
| US20230146091A1 (en) * | 2021-11-10 | 2023-05-11 | Aeolus Air Devices LLC | Airfield systems, devices, and methods |
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| CN117685684B (en) * | 2024-02-02 | 2024-04-26 | 广东美的暖通设备有限公司 | Heating and ventilation equipment |
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Also Published As
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| WO2021227434A1 (en) | 2021-11-18 |
| CN111912040B (en) | 2022-05-31 |
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Effective date of registration: 20220428 Address after: No.1 Gangcheng South Road, Jiangbei District, Chongqing, 400026 Applicant after: CHONGQING HAIER AIR-CONDITIONER Co.,Ltd. Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: Haier Smart Home Co., Ltd. |
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