CN115899845B - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
CN115899845B
CN115899845B CN202111161831.3A CN202111161831A CN115899845B CN 115899845 B CN115899845 B CN 115899845B CN 202111161831 A CN202111161831 A CN 202111161831A CN 115899845 B CN115899845 B CN 115899845B
Authority
CN
China
Prior art keywords
side wall
compressor
chamber
partition
fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111161831.3A
Other languages
Chinese (zh)
Other versions
CN115899845A (en
Inventor
张佩兰
饶欢欢
樊庆伟
金鑫
李琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou R&d Design PLC
Original Assignee
Hangzhou R&d Design PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou R&d Design PLC filed Critical Hangzhou R&d Design PLC
Priority to CN202111161831.3A priority Critical patent/CN115899845B/en
Publication of CN115899845A publication Critical patent/CN115899845A/en
Application granted granted Critical
Publication of CN115899845B publication Critical patent/CN115899845B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Other Air-Conditioning Systems (AREA)

Abstract

The application relates to an air conditioner, which comprises a shell, a compressor, a condenser, a condensing side fan, an evaporator and an evaporating side fan. The housing has a first chamber and a second chamber spaced apart from each other, the compressor, the condenser, and the condenser-side fan are disposed in the first chamber, and the evaporator and the evaporation-side fan are disposed in the second chamber. The compressor has a discharge port, the compressor includes a head portion and a tail portion disposed along a length direction of the compressor, and the discharge port of the compressor is disposed closer to the head portion. The tail portion is closer to the condensing side fan than the head portion in a length direction along the compressor. By the arrangement, the air conditioner achieves the effect of reducing noise.

Description

Air conditioner
Technical Field
The application relates to the field of air conditioners, in particular to an integrated air conditioner.
Background
The kitchen air conditioner is mainly applied to a summer kitchen environment, and the pain of a cooker caused by high-temperature sultry of the summer kitchen is solved. Because the existing kitchen generally lacks space for placing the outdoor unit, the air conditioner is generally made into an integrated structure and the whole machine is installed in a suspended ceiling of the kitchen. Because the height of the kitchen suspended ceiling is relatively low, the compressor is limited, the refrigerating capacity of the system is ensured, and the installation thickness requirement of the whole kitchen suspended ceiling is met. At present, a horizontal compressor is more used in the kitchen ceiling air conditioner, but noise and vibration are large, and the noise of the whole machine is relatively high.
Disclosure of Invention
The application aims to provide an air conditioner for solving the technical problems.
In order to achieve the above purpose, the application adopts the following technical scheme:
An air conditioner comprising a housing having a first chamber and a second chamber spaced apart from each other, a compressor, a condenser, a condensing side fan, an evaporator and an evaporating side fan, the compressor, the condenser and the condensing side fan being disposed in the first chamber, the evaporator and the evaporating side fan being disposed in the second chamber, the compressor having an exhaust port, the compressor including a head portion and a tail portion disposed along a length direction of the compressor, the exhaust port of the compressor being disposed closer to the head portion; the tail portion is closer to the condensing side fan than the head portion in a length direction along the compressor.
Compared with the related art, the application has the following beneficial effects: the exhaust port of the compressor is arranged closer to the head, so that moving parts such as noise and the like which are easy to generate in the compressor are relatively concentrated towards one side of the tail of the compressor, and the tail of the compressor is arranged closer to the condensing side fan than the head of the compressor along the length direction of the compressor, so that when the tail of the compressor is closer to the condensing side fan, air flow can also take away part of noise generated by the compressor, and the noise of the whole compressor is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of an air conditioner according to the present application;
FIG. 2 is a schematic view of the overall structure of the air conditioner according to another aspect of the present application;
FIG. 3 is a schematic view of the overall structure of another angle of the air conditioner according to the present application;
FIG. 4 is a schematic view of the overall structure of the air conditioner according to another aspect of the present application;
FIG. 5 is a top view of FIG. 1;
FIG. 6 is a side view of FIG. 1;
FIG. 7 is an exploded perspective view of the first access panel and the second access panel of FIG. 1 detached from the complete machine;
FIG. 8 is a further exploded perspective view of FIG. 7;
FIG. 9 is an exploded perspective view of the third access panel of FIG. 3 detached from the complete machine;
FIG. 10 is an exploded perspective view of the compressor and housing separated from other components of the air conditioner of the present application;
FIG. 11 is an exploded perspective view of the evaporative side fan and bracket of the air conditioner of the present application, separated from the other components of the air conditioner of the present application;
FIG. 12 is a perspective view of an evaporation side fan assembly in the air conditioner of the present application;
FIG. 13 is an enlarged view of a portion of FIG. 7;
fig. 14 is an enlarged view of a portion of fig. 10.
Detailed Description
Exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers in different drawings denote the same or similar elements, unless otherwise specified. What is described in the following exemplary embodiments does not represent all embodiments consistent with the application; rather, they are merely examples of apparatus, articles, and/or methods that are consistent with aspects of the application as set forth in the claims.
The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present application. As used in the specification and claims of the present application, the singular forms "a," "an," or "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that words such as "first," "second," and the like, used in the description and in the claims of the present application, do not denote any order, quantity, or importance, but rather are names used to distinguish one feature from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "rear," "upper," "lower," and the like are used herein for convenience of description and are not limited to a particular location or to a spatial orientation. The word "comprising" or "comprises", and the like, is an open-ended expression, meaning that elements appearing before "comprising" or "including", encompass the elements appearing after "comprising" or "including", and equivalents thereof, and not exclude that elements appearing before "comprising" or "including", may also include other elements. In the present application, if a plurality of the above-mentioned components are present, the meaning of the above-mentioned components is two or more.
Most of household air conditioners adopt a split type structure of an indoor unit and an outdoor unit, but at present, some high-rise houses are not provided with corresponding mounting platforms outside a kitchen, so that the kitchen cannot mount the outdoor unit of the air conditioner.
The application provides an air conditioner which is not provided with an outdoor unit, so that an extra outdoor platform is not required to be occupied, the air conditioner can be installed in a space above a kitchen ceiling, and the temperature of the kitchen can be reduced in summer, so that discomfort caused by high temperature stuffy heat to a human body is improved. It is easily understood that the air conditioner may be applied to other environments besides the kitchen. There is no limitation in this regard.
The application discloses an air conditioner 100, which comprises a shell 1, and a compressor 2, a condenser 31, a throttling element 521, an evaporator 32, a condensing side fan 41, an evaporating side fan 42, a pipeline 5 and an electric control unit 8 which are arranged in the shell 1. At least one of the compressor 2 and the condenser 31, the condenser 31 and the throttling element 521 and the evaporator 32 and the compressor 2 is connected by a length of the pipe 5, and in the embodiment provided by the application, a length of the pipe 5 is arranged between the compressor 2 and the condenser 31, between the condenser 31 and the throttling element 521 and between the evaporator 32 and the compressor 2. The throttling element 521 can be integrated in the evaporator 32 or can be independent of the evaporator 32, and in the case that the throttling element 521 is independent of the evaporator 32, the throttling element 521 and the evaporator 32 are also connected through a section of the pipeline 5; the electronic control unit 8 is electrically connected to the compressor 2, the condensation-side fan 41, and the condensation-side fan 42, respectively.
Referring to fig. 1 to 5, the housing 1 includes a bottom wall 11 extending horizontally and a side wall 12 extending vertically upward from an edge of the bottom wall 11. The side walls 12 include a first side wall 121, a second side wall 122, a third side wall 123, a fourth side wall 124, a fifth side wall 125, and a sixth side wall 126, which are connected in order from end to end. In the embodiment of the present application, since the bottom wall 11 is a rectangle including two long sides and two short sides (the square is a special rectangle, and the square bottom wall 11 having the same long sides and short sides is also covered by the present application), the third side wall 123 and the fourth side wall 124 are integrally formed on one long side of the bottom wall 11, the first side wall 121 and the sixth side wall 126 are integrally formed on the other long side of the bottom wall 11, and the second side wall 122 and the fifth side wall 125 are respectively located on two opposite short sides of the bottom wall 11. The housing 1 further includes a first partition 13 extending upward perpendicular to the bottom wall 11 and disposed in parallel between the second side wall 122 and the fifth side wall 125, one end of the first partition 13 is disposed vertically at a junction between the first side wall 121 and the sixth side wall 126, and the other end of the first partition 13 is disposed vertically at a junction between the fourth side wall 124 and the third side wall 123. It is emphasized that: the "junction" herein includes two forms of "integral connection" and "split connection: that is, the first side wall 121 and the sixth side wall 126 may be integrally connected to each other by the same plate, or may be separately connected to each other by two plate-shaped plates. Similarly, the fourth side wall 124 and the third side wall 123 may be integrally connected to each other by the same plate, or may be formed by separate plates. "integrally connected" is an alternative embodiment of the present application. Thus, the first side wall 121, the second side wall 122, the third side wall 123 and the first partition 13 enclose the first chamber 101 for circulating hot air. The first partition 13, the fourth side wall 124, the fifth side wall 125, and the sixth side wall 126 enclose the second chamber 102 for circulating cool air. The first partition 13 separates the gas environments of the first chamber 101 and the second chamber 102, so that the hot air of the first chamber 101 and the cold air of the second chamber 102 can not interfere with each other in the working state of the air conditioner 100 according to the present application.
As described above, in the first embodiment of the present application, the first side wall 121, the second side wall 122, the third side wall 123 and the first partition 13 together enclose the first rectangular first chamber 101, the fourth side wall 124, the fifth side wall 125, the sixth side wall 126 and the first partition 13 together enclose the second rectangular second chamber 102, that is, "the third side wall 123 and the fourth side wall 124 are on one long side of the bottom wall 11, the first side wall 121 and the sixth side wall 126 are on the other long side of the bottom wall 11, the second side wall 122 and the fifth side wall 125 are on two opposite short sides of the bottom wall 11", and it is described that the first rectangular first chamber 101 and the second rectangular second chamber 102 form a large rectangular chamber.
In the second embodiment of the present application, even the parallel relationship between the first side wall 121 and the third side wall 123, the second side wall 122 and the first partition 13, the fourth side wall 124 and the sixth side wall 126, and the fifth side wall 125 and the first partition 13 is not necessary, and only a square receiving space is required, for example: the first side wall 121, the second side wall 122, the third side wall 123 and the first partition 13 enclose together to form a first isosceles trapezoid first chamber 101, the fourth side wall 124, the fifth side wall 125, the sixth side wall 126 and the first partition 13 enclose together to form a second isosceles trapezoid second chamber 102, and the two isosceles trapezoid first chambers 101 and second chambers 102 share a lower bottom edge (namely the first partition 13) to form a large regular hexagon chamber.
The housing 1 further comprises a top wall, i.e. an upper cover (not shown) of the air conditioner in general terms, arranged opposite the bottom wall 11, which top wall substantially closes the first chamber 101 and the second chamber 102. In other embodiments, a top wall may not be provided. For example: an air conditioner without an upper cover is buckled and installed on a kitchen roof, and a closed cavity is formed by the roof.
The compressor 2, the condenser 31, and the condensation-side fan 41 are housed in the first chamber 101. The evaporator 32 and the evaporation side fan 42 are housed in the second chamber 102. Both the condenser 31 and the evaporator 32 are heat exchangers, both following the working principle of the heat exchangers. In the present embodiment, the refrigerant in the condenser 31 and the refrigerant in the evaporator 32 exchange heat with air, but since the temperature of the refrigerant in the condenser 31 is different from the temperature of the refrigerant in the evaporator 32, the high-temperature refrigerant in the condenser 31 has an effect of raising the temperature of the air, and the low-temperature refrigerant in the evaporator 32 has an effect of lowering the temperature of the air.
The compressor 2 has a discharge port, as is well known. Referring to fig. 1 to 5, the compressor 2 includes a head 21 and a tail 22 disposed opposite to the head 21. The head 21 and the tail 22 of the compressor 2 are arranged along the length of the compressor 2. The discharge port of the compressor 2 is closer to the head 21. The bottom of the head 21 and the bottom of the tail 22 are both provided with a fixing bracket 23, and the fixing bracket 23 is connected with the bottom wall 11 through an elastic member 24, so that the compressor 2 is elastically arranged on the bottom wall 11, and the elastic member 24 can absorb a part of vibration generated when the compressor 2 is started, thereby reducing noise. The compressor 2 is a horizontal compressor, the condenser 31 is at least partially located at one side of the head 21 of the compressor 2 far away from the tail 22 along the length direction of the compressor 2, the tail 22 is closer to the condensation side fan 41 than the head 21, the tail 22 is provided with mechanical moving parts of the compressor 2, the mechanical moving parts comprise a cylinder, a stator, a rotor, a piston and the like, the stator and the rotor are basically located in the middle of the horizontal compressor, the cylinder and the piston are basically located in the tail 22 of the horizontal compressor, and the head 21 of the horizontal compressor is basically not provided with more moving parts, so that the noise source of the horizontal compressor is more concentrated at the latter half part between the middle part and the tail 22, which is the prior art in the field, and the application is not repeated. The working principles of the cylinder, stator, rotor and piston in the compressor 2 are well known in the art, and the present application is not repeated.
The condensation-side fan 41 is fixedly provided on the inner wall surface of the first side wall 121, and in this embodiment, the condenser 31 is provided on the inner wall surface of the second side wall 122 and the inner wall surface of the third side wall 123 in an L-shaped bent manner in order to satisfy the heat exchange requirement. In other embodiments, the condenser 31 may be disposed only on the inner wall surface of the second side wall 122 or only on the inner wall surface of the third side wall 123. Alternatively, the compressor 2 is disposed at an intermediate position of the first chamber 101, and the first direction in which the head portion 21 extends toward the tail portion 22 coincides with the extending direction of the first partition 13. Alternatively, the length direction of the compressor 2, i.e., the first direction extending from the head 21 to the tail 22 is perpendicular to the axial direction of the first motor 411 in the condensing side fan 41, which is more convenient for the discharge of hot air. The compressor 2 may be placed in the first housing chamber 101 at an angle (for example, at an angle of 45 degrees) as long as the tail 22 is ensured to be closer to the condenser-side fan 41 than the head 21 is and the head 21 is ensured to be closer to the condenser 31 than the tail 22 is.
The second side wall 122 and/or the third side wall 123 are provided with a condensation side air inlet 1201, and the condenser 31 is fixedly arranged beside the condensation side air inlet 1201. The condenser 31 is internally provided with a refrigerant circulation channel, so that air outside the shell 1 and above the kitchen ceiling enters the first chamber 101 through the condensation side air inlet 1201, exchanges heat with the condenser 31 fixed at the position of the condensation side air inlet 1201, and hot air after heat exchange is discharged out of the first chamber 101 by the condensation side fan 41. In the actual installation process, the air return panel is arranged on the kitchen ceiling, and the condensing side air inlet 1201 is communicated with the air return panel on the kitchen ceiling, so that the indoor air below the kitchen ceiling is used as the air supplement above the kitchen ceiling, and the heat exchange efficiency of the air conditioner is improved.
The condenser 31 is provided with a pipe through which a cooling medium can flow, and a passage through which air can flow is formed on the peripheral side of the pipe. The passage in the condenser 31 communicates with the first chamber 101 so that air can exchange heat with the refrigerant in the pipe through the wall of the pipe as it passes through the passage. The condenser 31 is not necessarily limited to an L-shape, and the L-shape of the condenser 31 is only for the purpose of corresponding to the two condensation side air inlets 1201, and the need for increasing the heat exchange amount is satisfied.
In particular embodiments, condenser 31 may be a multi-pass heat exchanger. For example, the heat exchanger can be a copper tube fin type heat exchanger or a micro-channel heat exchanger with flat tubes and a collecting tube. The use of a microchannel heat exchanger is advantageous in reducing the weight of the condenser 31 and reducing the size of the condenser 31. The flat tube is generally provided with a plurality of channels for flowing the cooling medium therein. And an air circulation channel is formed between the flat pipes. Adjacent channels are isolated from each other, a plurality of channels are arranged in a row to jointly influence the width of the flat tube, the whole flat tube is flat, the length of the flat tube is larger than the width, and the width of the flat tube is larger than the thickness of the flat tube. The length direction of the flat tube is the flow direction of the refrigerant determined by the channel in the flat tube. The length direction of the flat tube can be linear, broken line type, bent type or the like. The flat tube is not limited to this type, and may be of other forms.
Referring to fig. 1, 3 and 4, the condensing side fan 41 includes a first casing 413, a first motor 411 and at least one first impeller (not shown). In this embodiment, the first impellers are two, the first motor 411 is disposed at a middle position of the two first impellers, and the first motor 411 drives the two first impellers to coaxially rotate. The condensing side fan 41 adopts a direct current fan, and the direct current fan has large air quantity, so that the air in the first chamber 101 can be rapidly discharged. The direct current fan has high pressure head, and can prolong the length of the exhaust pipe so as to ensure that the air in the first chamber 101 is exhausted outdoors. The shell height of the direct current fan is below 200mm, the thickness of the whole air conditioner 100 can be reduced, and the installation scene is more abundant and various. The direct current fan noise is low, and user's use experience is felt better.
The first side wall 121 is provided with at least one condensing side air outlet 1203, and in the present embodiment, two condensing side air outlets 1203 are provided corresponding to the two first impellers. The condensation side air outlet 1203 is provided with the condensation side fan 41 towards the inner side of the first chamber 101, the air outlet of the condensation side fan 41 is connected with the condensation side air outlet 1203, the outer side of the condensation side air outlet 1203 away from the first chamber 101 is provided with the first air outlet connector 1205, and the first air outlet connector 1205 is connected with an air outlet pipe (not shown) for communicating the condensation side air outlet 1203 with the outside, so that the condensation side fan 41 discharges the hot air after heat exchange in the first chamber 101 out of the outside through the condensation side air outlet 1203 and the air outlet pipe.
After the condensation-side fan 41 is started, air outside the casing 1 can continuously flow from the condensation-side air inlet 1201 into the first chamber 101, then flows from the first chamber 101 into a channel through which air flows in the condenser 31, the air in the channel is heated by the refrigerant in the condenser 31 to heat up to form hot air, and after leaving the channel of the condenser 31, the hot air can sequentially pass through the head 21 of the compressor 2, the tail 22 of the compressor 2, the condensation-side fan 41 and the condensation-side air outlet 1203 to the outside. At this time, since the tail 22 is closer to the condensation side air outlet 1203, the hot air flow can also take away a part of the noise generated by the compressor 2, so that the noise of the whole machine can be reduced, and on the other hand, the tail 22 of the compressor 2 is far away from the ventilation hole of the condensation side air inlet 1201, so that the noise transmitted to the outside of the casing 1 through the ventilation hole of the condensation side air inlet 1201 during the operation of the compressor 2 can be weakened, and the noise of the whole machine can be obviously reduced due to the comprehensive effect of the two aspects.
The evaporator 32 is fixedly disposed on an inner wall surface of the fifth side wall 125, and the evaporator 32 has an air inlet side facing the fifth side wall 125 and an air outlet side facing away from the fifth side wall 125. The evaporator 32 has a substantially plate shape, a pipe through which a refrigerant flows is provided in the evaporator 32, and a passage through which air flows is formed between adjacent pipes. The air exchanges heat in the channel with the refrigerant in the pipeline through the wall of the pipeline. The passage in the evaporator 32 communicates with the second chamber 102. The evaporator 32 is not necessarily limited to a plate shape, and may be any other shape that facilitates heat exchange in other embodiments.
In other embodiments, the evaporator 32 may likewise be a multi-pass heat exchanger. For example, the heat exchanger can be a copper tube fin type heat exchanger or a micro-channel heat exchanger with flat tubes and a collecting tube. The use of a microchannel heat exchanger is advantageous in reducing the weight of the evaporator 32 and reducing the size of the evaporator 32. The flat tube is generally provided with a plurality of channels for flowing the cooling medium therein. Adjacent channels are isolated from each other, a plurality of channels are arranged in a row to jointly influence the width of the flat tube, the whole flat tube is flat, the length of the flat tube is larger than the width, and the width of the flat tube is larger than the thickness of the flat tube. The length direction of the flat tube is the flow direction of the refrigerant determined by the channel in the flat tube. The length direction of the flat tube can be linear, broken line type, bent type or the like. The flat tube is not limited to this type, and may be of other forms.
Referring to fig. 1 and 5, a drain device 6 is disposed below the evaporator 32 in the second chamber 102, and the drain device 6 includes a water tank 61 and a drain pipe 62 disposed at one side of the water tank 61. In the heat exchange process, the refrigerant in the evaporator 32 can generate condensate water on the surface of the evaporator 32, and the water tank 61 can collect the condensate water, and optionally, the water tank 61 is obliquely arranged, so that the condensate water collected by the water tank 61 is more beneficial to being discharged to the outside of the air conditioner 100 through the drain pipe 62 in time, and the condensate water is prevented from overflowing into the shell 1 of the air conditioner 100 to cause equipment damage, or overflowed into a room to cause water leakage at a suspended ceiling.
Referring to fig. 1, 11 and 12, the evaporation side fan 42 includes a second motor 421, a second impeller 422, and a second casing 423. The second motor 421 drives the second impeller 422, and the second impeller 422 is accommodated in the second casing 423. The evaporation side fan 42 adopts a vertical installation mode, namely, the axial direction of the second motor 421 is parallel to the bottom wall 11, and the second casing 423 is arranged around the axial direction of the second motor 421 and is vertically installed relative to the bottom wall 11, so that the air inlet direction of the evaporation side fan 42 and the air outlet direction of the evaporator 32 are both along the axial direction of the evaporation side fan 42, that is, the air inlet of the second casing 423 faces the air outlet side of the evaporator 32 and is separated from the air outlet side of the evaporator 32 by a certain distance, which is beneficial for air to be directly sucked by the evaporation side fan 42 after passing through the evaporator 32, so as to reduce wind resistance, ensure air quantity and simultaneously reduce energy consumption of the evaporation side fan 42. The evaporation side fan 42 is an alternating current motor, can be directly communicated with an alternating current power supply, does not need rectification and voltage reduction, can reduce the cost of the whole machine, and can achieve the effect of rapid refrigeration.
Referring to fig. 1 and 11, a metal bracket 7 is further disposed in the second chamber 102, and the metal bracket 7 is used for fixing the evaporation side fan 42 and the housing 1. The metal bracket 7 includes a main body portion 70 and a fixing portion bent from the main body portion 70. The main body 70 is substantially quadrangular, and a through hole 700 is formed in the middle of the main body 70. The main body 70 and the first partition 13 are spaced apart from each other to form a gap, and the second motor 421 passes through the through hole 700 so that the second motor 421 is partially received in the gap, thereby optimizing the spatial layout on the basis of realizing the fixing effect of the metal bracket 7. Specifically, the end of the second motor 421 remote from the driving end, i.e., the end of the second motor 421, passes through and is positioned in the through hole 700. The second casing 423 is not only vertically installed around the axial direction of the second motor 421 with respect to the bottom wall 11, but also secured to the main body 70 by screws or the like to ensure the stability of the vertical installation. The fixed part of the metal bracket 7 comprises a first folded edge 71, a second folded edge 72 and a third folded edge 73 which are respectively formed by bending three side edges of the main body part 70, the first folded edge 71 is fixedly connected with the first partition plate 13, the second folded edge 72 is fixedly connected with the bottom wall 11 or the first partition plate 13, and the third folded edge is fixedly connected with the sixth side wall 126 or the first partition plate 13, so that the metal bracket 70 can be fixed in the second cavity 102 in the three-dimensional direction, the supporting strength of the metal bracket 70 is enhanced, the vibration of the whole machine when the evaporation side fan 42 is started to shake is avoided, and the noise is avoided. In the present embodiment, the metal bracket 70 is fixedly connected to the first partition 13, the bottom wall 11, and the sixth side wall 126 by screws, and in other embodiments, the metal bracket 70 may be fixed by welding.
Referring to fig. 1, the fifth side wall 125 is provided with an evaporation side air inlet 1202, and the evaporation side air inlet 1202 is provided with a plurality of ventilation holes, so that air outside the housing 1 enters the second chamber 102 through the evaporation side air inlet 1202 to exchange heat with the evaporator 32. In the present embodiment, the number of the evaporation side air inlets 1202 is one, and the customer may set a plurality of evaporation side air inlets 1202 according to the shape of the evaporator 32 to satisfy the air intake requirement.
Referring to fig. 1, a sixth side wall 126 is provided with an evaporation side air supply opening 1204, the evaporation side air supply opening 1204 is provided with an evaporation side fan 42 towards the inner side of the second chamber 102, an air outlet of the evaporation side fan 42 is connected with an evaporation side air supply opening 1024, a second air opening connecting piece 1206 is provided at the outer side of the evaporation side air supply opening 1204 far away from the second chamber 102, the second air opening connecting piece 1206 is connected with an air supply pipe (not shown), the air supply pipe is communicated with the evaporation side air supply opening 1204 and an air supply panel on the kitchen ceiling, and the evaporation side fan 42 sends cold air after heat exchange in the second chamber 102 into a room through the evaporation side air supply opening 1204 and the air supply pipe.
After the evaporation side fan 42 is started, air outside the shell 1 can continuously flow into the second chamber 102 from the evaporation side air inlet 1202, then enters the channel of the evaporator 32 from the second chamber 102, the air in the channel exchanges heat with the refrigerant in the evaporator 32 and then cools down to form cold air, and after leaving the channel of the evaporator 32, the cold air is pumped to the evaporation side air inlet 1204 through the evaporation side fan 42 and then is conveyed into a room through an air supply pipe.
Referring to fig. 3, the air conditioner 100 further includes a plurality of sections of pipelines 5, and in this embodiment, the pipelines 5 include a first pipeline 51, a second pipeline 52 and a third pipeline 53. The first pipe 51 is connected between the compressor 2 and the condenser 31, the second pipe 52 passes through the first partition 13 and is connected between the condenser 31 and the throttling element 521, and the third pipe 53 passes through the first partition 13 and is connected between the evaporator 32 and the compressor 2. In the present embodiment, the throttling element 521 is a capillary tube. In other embodiments, the throttling element 521 may be a thermal expansion valve.
Referring to fig. 3, in the present embodiment, since the throttling element 521 is a capillary tube having a diameter smaller than that of the pipeline 5, and a dry filter 522 is particularly disposed between the second pipeline 52 and the capillary tube type throttling element 521, when the high-pressure refrigerant in the condenser 31 passes through the dry filter 522 to filter impurities and then passes through the throttling element 521, the blockage caused by the precipitation of the impurities at the throttling element 521 is avoided, the throttling element 521 reduces the temperature of the refrigerant and reduces the pressure of the refrigerant, so that the refrigerant entering the evaporator 32 is rapidly cooled, and the effect of cooling the hot air can be achieved by heat exchange with the hot air. In the present embodiment, the capillary-type throttling element 521 is also connected to the evaporator 32 by another line (not numbered), which corresponds to the communication between the condenser 31 and the evaporator 32 by way of the line 5.
Referring to fig. 1, 4 and 7, a refrigerant filling valve 531 is disposed on the third pipeline 53 and near the evaporator 32, and the refrigerant filling valve 531 is mainly used for filling refrigerant into the pipeline 5 when the amount of refrigerant is small. In addition, since the third pipe 53 is a low-pressure pipe, in the present embodiment, the refrigerant charge valve 531 is provided in the third pipe 53, so that the refrigerant can be conveniently injected. On the fourth side wall 124, the housing 1 is provided with a first access port 1001, and the first access port 1001 is at least partially located with respect to the refrigerant charge valve 531. The shape of the first access port 1001 may be rectangular, circular, oval, etc., without limitation. The fourth side wall 124 is further provided with a first access cover 91 for sealing the first access opening 1001, and the first access cover 91 is fixed to the fourth side wall 124 by screws, that is, when the first access cover 91 is not used for maintenance, the second chamber 102 may be a closed space. The air conditioner is in a non-working state, and the first access cover plate 91 can be removed to perform the action of filling the refrigerant.
The refrigerant filling valve 531 is inclined downward and faces the first access hole 1001, and when the first access cover 91 is opened, the refrigerant filling valve 531 can be seen, and the refrigerant filling device (not shown) can be quickly and conveniently connected with the refrigerant filling valve 531 through the first access hole 1001 to fill the refrigerant. The first access port 1001 is sized to fully expose the refrigerant charge valve 531 and to accommodate an operating space when a lower charge device (not shown) is connected to the refrigerant charge valve 531.
By arranging the refrigerant filling valve 531 on the third pipeline 53 and arranging the first access hole 1001 on the fourth side wall 124, the air conditioner does not need to take the whole machine off the kitchen ceiling when filling the refrigerant, but only simply removes a plurality of kitchen pinch plates near the first access hole 1001 of the air conditioner, then opens the first access cover plate 91, connects the refrigerant filling valve 531 with a filling device (not shown), and only needs to fix the first access cover plate 91 on the fourth side wall 124 again after the refrigerant filling is finished, and installs a plurality of kitchen pinch plates near the first access hole 1001. The disassembly step and the re-hoisting step of the whole machine are omitted, the opening step and the re-fixing step of the upper cover of the machine are also omitted, the refrigerant filling flow is simplified, the workload of maintenance personnel is greatly reduced, time and labor are saved, and meanwhile, the labor cost is also reduced.
Referring to fig. 1 and 4, a second partition 14 is further disposed in the second chamber 102, and the second partition 14 is provided with a first side plate 141 and a second side plate 142 connected to the first side plate 141. That is, in the present embodiment, the second separator 14 is provided in an L-shape, but is not necessarily limited, and may be, for example, arc-shaped. In the present embodiment, the end of the first side plate 141 of the second partition 14 is only required to be connected to the first partition 13, and the end of the second side plate 142 is required to be connected to the fourth side wall 124. Thus, a portion of the first partition 13, a portion of the fourth side wall 124, and the second partition 14 enclose a third chamber 103 therebetween. The two ends of the second partition 14 located in the second chamber 102 are not necessarily connected to the first partition 13 and the fourth side wall 124, for example, in other embodiments: the first side plate 141 end of the second partition 14 may be connected to the fourth side wall 124 and the second side plate 142 end to the fifth side wall 125, and a third chamber 103 may be formed around a portion of the fifth side wall 125, a portion of the fourth side wall 124, and the second partition 14.
In the present embodiment, the second partition 14 virtually divides the rectangular second chamber 102 into a third chamber 103 that accommodates the electronic control unit 8. Of course, in other embodiments, the second partition 14 may be disposed in the first chamber 101, and then the second partition 14 divides the first chamber 101 into a part of space to form the third chamber 103 for accommodating the electronic control unit 8. It should be understood, of course, that the placement of the second partition 14 within the second chamber 102 is a relatively alternative embodiment, because the second chamber 102 is filled with cold air after heat exchange, and the electronic control unit 8 is placed within the second chamber 102 filled with cold air, which is relatively advantageous for the operational stability of the various electronic components within the electronic control unit 8.
The electronic control unit 8 comprises an electronic control box 82 positioned in the third chamber 103, and the peripheral wall of the electronic control box 82 is fixedly connected to a fourth side wall 124. The electronic control unit 8 further comprises an electronic control main board 81 which is positioned in the electronic control box 82 and provided with circuit elements, and other circuit elements which are positioned outside the electronic control box 82, wherein the electronic control main board 81 is fixed on a back plate of the electronic control box 82 through screws.
Other circuit elements include a rectifying buck module 85. Since the condensing side fan 41 is a direct current fan, the direct current needs to be supplied to the condensing side fan 41 for the normal start-up and operation of the condensing side fan 41. In a specific implementation manner of the present application, the input end of the rectifying and voltage reducing module 85 is connected to the electric control main board 81, and the output end of the rectifying and voltage reducing module is connected to the condensation side fan 41, so that 220V ac on the electric control main board 81 is rectified and voltage reduced by the rectifying and voltage reducing module 85 to be converted into 24V dc, and then is sent to the condensation side fan 41. In the present embodiment, the rectification step-down module 85 is fixedly connected to the first side plate 141. In other embodiments, the rectification step-down module 85 may be fixedly connected to the second side plate 142 or the first partition 13. The space in the third chamber 103 is favorable for heat dissipation of the rectification step-down module 85, and the other side of the second partition 14 is the second chamber 102 where the evaporator 32 is located, so that the cooling air cooled by the evaporator 32 can further accelerate heat dissipation of the rectification step-down module 85.
Other circuit elements include a compressor capacitor 83 and an evaporation side fan capacitor 84. In the present embodiment, the compressor capacitor 83 is fixedly connected to the first separator 13. In other embodiments, the compressor capacitor 83 may be fixedly connected to the first side plate 141 or the second side plate 142 of the second partition 14. The compressor capacitor 83 is connected in parallel with the compressor 2 and then connected to the electric control main board 81 in series, so that the electric control main board 81 can provide 220V alternating current for the compressor 2, and the compressor capacitor 83 is used for starting the compressor 2. In the present embodiment, the evaporation side fan capacitor 84 is fixedly connected to the first side plate 141. In other embodiments, the evaporation side fan capacitance 84 may be fixedly connected to the second side plate 142 of the first partition 13 or the second partition 14. The evaporation side fan capacitor 84 is connected in parallel with the evaporation side fan 42 and then connected to the electric control main board 81 in series, so that the electric control main board 81 provides 220V alternating current to the evaporation side fan 42, and the evaporation side fan capacitor 84 is used for starting the evaporation side fan 42.
Referring to fig. 5, the electric control main board 81 is provided with 220V strong current, the rectification voltage reduction module 85 connected with the electric control main board 81 is provided with 24V weak current, and the electric control main board 81 is separated from the rectification voltage reduction module 85 by the electric control box 82, i.e. the strong current and the weak current are separately arranged, so that the safety is higher.
Referring to fig. 1, 7 and 8, a second access hole 1002 is formed in the fourth side wall 124 where the electronic control box 82 is installed, and the second access hole 1002 is sized so that all circuit elements disposed on the electronic control main board 81 can be completely exposed and can accommodate an operation space when the electronic control main board 81 is overhauled. The fourth side wall 124 is further provided with a second access panel 92 closing the second access opening 1002, and the second access panel 92 is fastened to the fourth side wall 124 by screws. So set up, when automatically controlled mainboard 81 breaks down, open second access cover 92 and can carry out troubleshooting and maintenance to automatically controlled mainboard 81.
Referring to fig. 1 and 9, in the present embodiment, a third access hole 1003 is also provided in the bottom wall 11 below the rectifying and depressurizing module 85, and the third access hole 1003 is sized to be able to pass through the rectifying and depressurizing module 85, and the compressor capacitor 83 and the evaporation side fan capacitor 84 are generally smaller, so that the third access hole 1003 can also pass through the third access hole 1003, and the third access hole 1003 also needs to satisfy the operation space during the maintenance. The bottom wall 11 is further provided with a third access cover plate 93 closing the third access opening 1003, and the third access cover plate 93 is fixed to the bottom wall 11 by screws. The third access cover 93 is opened to perform troubleshooting and repair of the compressor capacitor 83, the evaporation side fan capacitor 84, and the rectification step-down module 85. In the present embodiment, the third access hole 1003 is divided into two parts by the first side plate 141, wherein one part is communicated with the third chamber 103, and can be used for checking wiring faults and replacing the compressor capacitor 83 and the evaporation side fan capacitor 84, and the other part is communicated with the second chamber 102, and can be used for disassembling and installing screws for fixing the rectification step-down module 85, so as to replace the rectification step-down module 85.
By providing the second access opening 1002 and the third access opening 1003 on the fourth side wall 124 and the bottom wall 11 respectively, the kitchen ceiling air conditioner can be used for repairing the electric control unit 8 without removing the whole machine from the kitchen ceiling, but only by simply removing a plurality of kitchen pinch plates near the second access opening 1002 and/or the third access opening 1003, then opening the second access cover plate 92 and/or the third access cover plate 93 for performing circuit fault investigation, and only by closing the second access cover plate 92 and/or the third access cover plate 93 after repairing, and reinstalling a plurality of kitchen pinch plates near the second access opening 1002 and/or the third access opening 1003. The disassembly step and the re-hoisting step of the whole machine are omitted, the opening step and the re-fixing step of the upper cover of the machine are also omitted, the circuit maintenance flow is simplified, the workload of maintenance personnel is greatly reduced, time and labor are saved, and meanwhile, the labor cost is also reduced.
In fact, the second access hole 1002 is not necessarily disposed on the fourth side wall 124, but may be disposed on the bottom wall 11 like the third access hole 1003, and even the second access hole 1002 and the third access hole 1003 on the bottom wall 11 may be communicated to form a larger access hole, thereby satisfying the need for repairing the electronic control motherboard 81 and the need for repairing other circuit components.
In summary, the refrigeration principle of the air conditioner of the application is as follows: kitchen air enters the first chamber 101 through the condensing side air inlet 1201 to exchange heat with the condenser 31, a high-temperature and high-pressure refrigerant is arranged in the condenser 31, the high-temperature and high-pressure refrigerant can heat the air in the first chamber 101 in the process of exchanging heat with the air, and the heated hot air is discharged out of the room through the condensing side fan 41 and the condensing side air outlet 1203, which is equivalent to an outdoor unit in a split air conditioner. Kitchen air enters the second chamber 102 through the evaporation side air inlet 1202 to exchange heat with the evaporator 32, the inside of the evaporator 32 is cooled and depressurized by the throttling element 521, the low-temperature low-pressure refrigerant can cool the air in the second chamber 102 in the heat exchange process with the air, and the cooled cold air is sent into the room through the evaporation side fan 42 and the condensation side air outlet 1204 and is equivalent to an indoor unit in a split air conditioner.
The above embodiments are only for illustrating the technical solutions described in the present application and should not be construed as limiting the present application, and the present application should be understood based on the description of the directivity of the present application such as "front", "rear", "left", "right", "upper", "lower", etc., and although the present application has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present application may be modified or substituted by those skilled in the art without departing from the spirit and scope of the present application and all the modifications thereof should be covered in the scope of the claims of the present application.

Claims (10)

1. An air conditioner, characterized in that: comprises a shell (1), a compressor (2), a condenser (31), a condensing side fan (41) and a steaming device
A hair dryer (32) and an evaporation side fan (42), the housing (1) having a first chamber (101) and a second chamber spaced apart from each other
(102) The compressor (2), the condenser (31) and the condensing side fan (41) are provided in the first chamber (101)
In the evaporator (32) and the evaporation side fan (42) are arranged in the second chamber (102), and the compressor (2)
Having a discharge port, the compressor (2) comprising a head (21) and a tail arranged along the length of the compressor (2)
(22) -The discharge outlet of the compressor (2) is arranged closer to the head (21); in the longitudinal direction of the compressor (2)
And the tail part (22) is closer to the condensing side fan (41) than the head part (21).
2. An air conditioner according to claim 1, wherein: in a longitudinal direction along the compressor (2), the compression
-The machine (2) is located between said condensation side fan (41) and at least part of said condenser (31); the compressor (2) is horizontal
A rotor compressor, the compressor (2) having a first direction extending from the head (21) to the tail (22), the cold
The condenser fan (41) has a motor axis extending in a second direction, the first direction being perpendicular to the second direction.
3. An air conditioner according to claim 1 or 2, wherein: the shell (1) comprises a bottom wall (11), a plurality of side walls
(12) And a first partition (13), the side wall (12) including a first side wall (121), a second side wall (122), and a third side wall
(123) The first side wall (121), the second side wall (122), the third side wall (123) and the first partition (13)
Sequentially connected to the periphery of the first chamber (101), and the condensing side fan (41) is fixedly arranged on the first side wall
(121) The condenser (31) is fixedly arranged on the inner wall surface of the second side wall (122) and/or the third side wall
The second side wall (122) and/or the third side wall (123) are/is provided with a condensation side air inlet (1201) on the inner wall surface of the side wall (123).
4. An air conditioner according to claim 3, wherein: also comprises a fixed bracket positioned below the compressor (2)
(23) And an elastic element (24) fixed between the bottom wall (11) and the fixed support (23), the compressor (2) being open
Is connected to the housing (1) via the elastic element (24) and the fixing bracket (23).
5. An air conditioner according to claim 3, wherein: the first side wall (121) is flat with the third side wall (123)
Arranged in a row and opposite to each other, said second side wall (122) being arranged parallel to and opposite to said first partition (13), said compressor (2)
Is arranged in the middle of the first chamber (101) and the compressor (2) is arranged at the head part (21) and the tail part (22)
The extending direction of the first partition board (13) is consistent with the extending direction of the first partition board.
6. An air conditioner according to claim 3, wherein: the condensing side fan (41) comprises a first motor (411) for
And two oppositely arranged first impellers driven by the first motor (411) simultaneously, wherein the first side wall (121) is provided with a plurality of blades which are connected with the motor
And two condensing side air outlets (1203) respectively corresponding to the first impellers.
7. An air conditioner according to claim 3, wherein: the side wall (12) comprises a fourth side wall (124), a fifth side wall
(125) And a sixth sidewall (126), the fourth sidewall (124), the fifth sidewall (125), the sixth sidewall (126), and
The first partition board (13) is sequentially connected with the periphery of the second chamber (102), and the evaporator (32) is fixedly arranged on
An inner wall surface of the fifth side wall (125) and having an air inlet side facing the fifth side wall (125) and a side facing away from the fifth side wall
(125) The air inlet of the evaporation side fan (42) faces the air outlet side of the evaporator (32) and is connected with the evaporator
The air outlet side of the air generator (32) is spaced a distance apart.
8. An air conditioner according to claim 7, wherein: the fourth side wall (124) is flat with the sixth side wall (126)
Arranged in a row and opposite to each other, the fifth side wall (125) is arranged in parallel and opposite to the first partition (13), and the fourth side wall
(124) Integrally extending with the third side wall (123), the sixth side wall (126) integrally extending with the first side wall (121)
The fifth side wall (125) is provided with an evaporation side air inlet (1202), and the sixth side wall (126) is provided with an evaporation side air outlet (1204).
9. An air conditioner according to claim 7, wherein: also comprises a compressor (2) and a condensing side fan
(41) An electric control unit (8) electrically connected with the evaporation side fan (42), wherein the shell (1) comprises a second partition plate (14), and
The second partition (14) together with the side wall (12) and/or the first partition (13) encloses the first chamber (101) or the second chamber
One part of the second chamber (102) is divided to form a third chamber (103) for accommodating the electric control unit (8).
10. An air conditioner as set forth in claim 9, wherein: the third chamber (103) is located in the second chamber
(102) In which one end of the second partition board (14) is connected to the first partition board (13) and the other end of the second partition board (14)
One end of which is connected to the fourth side wall (124), part of the first partition (13), part of the fourth side wall (124) and the third side wall
The second partition plates (14) are sequentially connected to the periphery of the third chamber (103).
CN202111161831.3A 2021-09-30 2021-09-30 Air conditioner Active CN115899845B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111161831.3A CN115899845B (en) 2021-09-30 2021-09-30 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111161831.3A CN115899845B (en) 2021-09-30 2021-09-30 Air conditioner

Publications (2)

Publication Number Publication Date
CN115899845A CN115899845A (en) 2023-04-04
CN115899845B true CN115899845B (en) 2024-10-18

Family

ID=86486091

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111161831.3A Active CN115899845B (en) 2021-09-30 2021-09-30 Air conditioner

Country Status (1)

Country Link
CN (1) CN115899845B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115899845B (en) * 2021-09-30 2024-10-18 杭州瑞德设计股份有限公司 Air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216620058U (en) * 2021-09-30 2022-05-27 杭州境象科技有限公司 Air conditioner
CN115899845A (en) * 2021-09-30 2023-04-04 杭州境象科技有限公司 Air conditioner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200452067Y1 (en) * 2008-09-09 2011-01-28 임창호 Air compressors with separators to reduce noise
CN205561042U (en) * 2016-04-15 2016-09-07 浙江欧伦电气有限公司 Horizontal dehumidifier gives sound insulation
CN205783491U (en) * 2016-06-22 2016-12-07 Tcl空调器(中山)有限公司 kitchen air conditioner
CN207945736U (en) * 2018-03-20 2018-10-09 浙江来斯奥电气有限公司 A kind of air conditioner used in kitchen of low noise
CN108413508A (en) * 2018-03-20 2018-08-17 广东美的制冷设备有限公司 Package AC plant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216620058U (en) * 2021-09-30 2022-05-27 杭州境象科技有限公司 Air conditioner
CN115899845A (en) * 2021-09-30 2023-04-04 杭州境象科技有限公司 Air conditioner

Also Published As

Publication number Publication date
CN115899845A (en) 2023-04-04

Similar Documents

Publication Publication Date Title
JP4700690B2 (en) Heat pump type water heater
CN100501252C (en) A mobile air conditioner
CN207230813U (en) A kind of integrated air conditioner and cabinet
WO2021077802A1 (en) Integrated air source heat pump
CN101086362B (en) Air conditioner outdoor unit control box
CN218787591U (en) Inner structure of air source cold and hot water unit and air source cold and hot water unit
CN102759151B (en) The outdoor unit of aircondition
CN115899845B (en) Air conditioner
CN218237662U (en) Outdoor unit and integral heat pump air conditioning unit
CN106461243A (en) Outdoor unit of an air conditioner and method of manufacturing the same
CN216620058U (en) Air conditioner
CN217083041U (en) Piston type evaporation and cooling integrated machine
CN110062566A (en) Cabinet air conditioner
CN216620059U (en) Air conditioner
CN217584646U (en) Air conditioner
CN217584647U (en) Air conditioner
CN101644462A (en) Indoor unit of air conditioner
CN201145358Y (en) Double-system energy-saving air conditioner
CN217584645U (en) Air conditioner
CN210959286U (en) An air conditioner for outdoor cabinets
CN220041977U (en) Air conditioner
CN201103962Y (en) Moveable air conditioner
CN221315835U (en) High-efficient heat dissipation formula fills electric pile
CN110799022A (en) An air conditioner for outdoor cabinets
CN218442598U (en) Energy storage cabinet cold water air conditioner

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20230928

Address after: No. 101, Shichong Lane, Binjiang District, Hangzhou, Zhejiang 310052

Applicant after: HANGZHOU R&D DESIGN PLC

Address before: 310052 room 205, floor 2, building 3, No. 365, Changjiang Road, Hangzhou, Zhejiang

Applicant before: Hangzhou Jingxiang Technology Co.,Ltd.

GR01 Patent grant
GR01 Patent grant