CN108469061A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN108469061A
CN108469061A CN201810152220.4A CN201810152220A CN108469061A CN 108469061 A CN108469061 A CN 108469061A CN 201810152220 A CN201810152220 A CN 201810152220A CN 108469061 A CN108469061 A CN 108469061A
Authority
CN
China
Prior art keywords
mentioned
engaging part
air conditioner
boss portion
power equipment
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.)
Granted
Application number
CN201810152220.4A
Other languages
Chinese (zh)
Other versions
CN108469061B (en
Inventor
奈良部贵之
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.)
Hitachi Johnson Controls Air Conditioning Inc
Original Assignee
Hitachi Johnson Controls Air Conditioning Inc
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 Hitachi Johnson Controls Air Conditioning Inc filed Critical Hitachi Johnson Controls Air Conditioning Inc
Publication of CN108469061A publication Critical patent/CN108469061A/en
Application granted granted Critical
Publication of CN108469061B publication Critical patent/CN108469061B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

The present invention provides a kind of air conditioner, has and all can inhibit mobile and fixed, holding member mounting structure relative to either direction.Air conditioner has:It is set to the boss portion (101) of cabinet;And installing component, such as power equipment (7), it is with engaging part (102), the engaging part (102) inside be provided with can store boss portion (101) incorporating section, for example by front (102a), above (102b), below (102c), the back side (102d), right side (102e) surround space, entrance of the engaging part (102) in incorporating section has protrusion, such as elastic rib (102f), the outside of boss portion (101) locking by protrusion.

Description

Air conditioner
Technical field
The present invention relates to air conditioners.
Background technology
Its profile is formed by cabinet matrix and cover in the indoor unit of air conditioner, has heat exchanger, through-flow inside it The critical piece of fan, fan electromotor, power equipment etc., the component for fixing these components.As fixed all parts Method locking and fixed etc. a variety of sides such as can obtain the fixation carried out by screw (screw), make the pawl being set on component Method.
Following structures are described in patent document 1:" fan electromotor, bearing mounting structure in, by casing The anti-limiter fallen is set, casing monomer can be used to keep fan electromotor, bearing ".
It records in patent document 2:" the mounting structure of the electric part box in the cabinet for being incorporated in air-conditioner device In, the not pawl engaged with the recess portion being set to below electric part box is set in the lower part wall of cabinet, on the top of cabinet The elastic claw that engages with the protrusion non-return for being set to the upper surface of electric part box is arranged in wall, by the engagings of these pawls by electrical part Part case is fixed on cabinet ".
Existing technical literature
Patent document
Patent document 1:Japanese Unexamined Patent Publication 8-178339 bulletins
Patent document 2:Japanese Unexamined Patent Publication 11-173598 bulletins
Such as patent document 1, by be arranged limiter come holding member is not need the fixed components such as screw, cover by it is effective Method.These methods are not limited only to the holding of fan electromotor, bearing, it can also be used to install the structure of other component.For example, conduct Power equipment is fixed on the method on cabinet matrix, in addition to the fixation carried out by screw, as shown in patent document 2, is used Pass through hook portion, the locking and fixed method of pawl.
By making the mounting structure for being fixed as having used limiter of power equipment, screw is not needed, it can be achieved that component The reduction of quantity, the reduction of flow chart.In structure shown in patent document 1, remained in by using limiter Fan electromotor, the bearing of axial-flow fan both sides and the structure formed, by limiter, from the installation as fan electromotor, bearing The indoor machine face in direction is observed, and the movement to front side can be inhibited.In addition, by casing can inhibit to indoor unit inboard with And the movement of indoor unit top surface, bottom surface side.
But relative to the axial indoor unit left and right directions as fan electromotor, due to by have fan electromotor with The structure of bearing both sides inhibits movement, only one the case where etc. for example in the feelings of the fixed part for power equipment It cannot inhibit under condition mobile.Therefore, even if being needed with from either direction applied force when being only fixed with a wherein component In the case of also immovable mode to respective direction need it is fixed, keep.
Invention content
Therefore, be invention for solving the above subject in the present invention, its purpose is to provide one kind have relative to Either direction all can inhibit mobile and can fix, the air conditioner of the mounting structure of holding member.
To achieve the goals above, air conditioner of the invention is characterized as:Has the boss portion for being set to cabinet;Mounting portion Part (for example, power equipment 7), with engaging part, which is provided with the storage that can store boss portion in inside Portion (for example, the space surrounded by front 102a, 102b above, following 102c, back side 102d, right side 102e), holding section Entrance of the part in incorporating section has protrusion (for example, elastic rib 102f), and the outside of boss portion is locking by protrusion.About the present invention's Other modes illustrate in aftermentioned embodiment.
The effect of the present invention is as follows.
Mobile and fixed, holding member is all can inhibit relative to either direction according to the present invention.
Description of the drawings
Fig. 1 is the composition figure of the indoor unit for the air conditioner for indicating present embodiment.
Fig. 2 is the stereogram of the appearance for the power equipment for indicating to be installed on cabinet matrix shown in FIG. 1.
Fig. 3 (a) is the left side view for the power equipment for indicating to be installed on cabinet matrix shown in FIG. 1, and Fig. 3 (b) is Indicate the right side view for the power equipment being installed on cabinet matrix shown in FIG. 1.
Fig. 4 is the definition graph for the internal structure for indicating power equipment.
Fig. 5 is the definition graph for the installation method for indicating cabinet matrix and power equipment shown in FIG. 1.
Fig. 6 is the summary side elevation for the engaging part for indicating cabinet matrix and power equipment shown in FIG. 1.
Fig. 7 is A-A sectional views shown in fig. 6.
Fig. 8 is the installation photo for the fastening state for indicating boss portion and engaging part.
Fig. 9 is other the exemplary summary side elevations for indicating boss portion and engaging part.
In figure:1-indoor unit, 2-cabinet matrixes (cabinet), 3-chassis covers, 4-heat exchangers, 5-axial-flow fans, 6-fan electromotors, 7-power equipments, 7a-babinet, 7b-terminal board, 7c-substrate support, 7d-engaging portion, 7e- Cap, 8-screws, 101-boss portions (engaging support portion), 101a-threaded hole, 102-engaging parts, 102a-front, 102b-is above, and 102c-is in the following, 102d-back side, 102e-right side, 102f-elastic rib (protrusion), 102g-screw are used Opening portion, 102h-opening portion, 103-opening faces.
Specific implementation mode
It is suitably described in detail with reference to attached drawing about embodiment for carrying out the present invention.
Fig. 1 is the composition figure of the indoor unit 1 for the air conditioner for indicating embodiment.In Fig. 1, in order to illustrate by air Blowout side is used as front to illustrate.Indoor unit 1 has cabinet matrix 2, chassis cover 3, forms the profile of indoor unit 1.Moreover, Have heat exchanger 4, axial-flow fan 5, fan electromotor 6, power equipment 7 inside it.Chassis cover 3 passes through on cabinet matrix 2 Screw division 8 is fixed.Here, illustrating power equipment 7 as the installing component on cabinet matrix 2.Power equipment 7 configures In the right end of cabinet matrix 2.Easiness when configuration is required in the installation of power equipment 7, also, also requires to hold when safeguarding Easily safeguarded.Therefore, if the cover for being configured at the right side for removing power equipment 7 can see the position of control base board.
Fig. 2 is the stereogram for indicating to be installed on the appearance of power equipment 7 on cabinet matrix 2 shown in FIG. 1.Fig. 3 (a) is The left side view for indicating the power equipment 7 being installed on cabinet matrix 2 shown in FIG. 1, is (b) to indicate to be installed on shown in Fig. 1 Cabinet matrix 2 on power equipment 7 right side view.Fig. 4 is the definition graph for indicating 7 internal structure of power equipment.
In fig. 2, power equipment 7 has babinet 7a, the cap of the iron plate for preventing fire from extending in its gabarit 7e has for installing with the terminal board 7b of the connecting line of outdoor unit (not shown herein), being accommodated in parts of electric for installing The control base board of the inside of case 7 and for resin forming product substrate support 7c.Have for installing on substrate support 7c In the engaging part 102 for the boss portion 101 (engaging support portion, with reference to Fig. 5) that cabinet matrix 2 has (referring to Fig.1).In addition, Has the engaging portion 7d hung on cabinet matrix 2 in the upper back of power equipment 7.
In the left side view of Fig. 3 (a), has engaging part 102 in the lower end of substrate support 7c.In Fig. 3 (a), Engaging part 102 is the face i.e. opening face 103 (ginseng that the front side of drawing is for insertion into the opening of boss portion 101 (with reference to Fig. 5) According to Fig. 5), the face other than the face have front 102a, 102b above, following 102c, back side 102d, be the inboards Fig. 3 (a) right side Face 102e.Engaging part 102 inside setting can store boss portion 101 incorporating section (for example, front 102a, 102b above, under The space that face 102c, back side 102d, right side 102e are surrounded).An also, parts of the back side 102d as substrate support 7c Relative to the inclined inclined-plane of upper and lower directions, to play the effect for the stop component for preventing boss portion 101 from rearward moving.
In the right side view of Fig. 3 (b), multiple opening portion 102h are set in a part of right side 102e.By this Opening portion 102h is also used for the used dimension when unloading power equipment 7 while improving the elasticity of engaging part 102 The opening portion of shield.
Right side view shown in Fig. 4 indicates to open the state of the lid of power equipment 7.Understanding substrate support 7c includes Engaging part 102 and the content formed with integrally formed resin.If upkeep operation person removes chassis cover 3 shown in FIG. 1, can Enough power equipment 7 from right side, can observe internal control base in the state of opening the lid of power equipment 7 Plate.
Secondly, the installation method of power equipment 7 is illustrated with reference to Fig. 5~Fig. 7.
Fig. 5 is the definition graph for indicating cabinet matrix 2 and the installation method of power equipment 7 shown in FIG. 1.Fig. 5 is to indicate Power equipment 7 will be installed on to the figure of the state before cabinet matrix 2, by movably consolidated in arrow direction by figure It is fixed.Cabinet matrix 2 is synthetic resin, has the boss portion 101 for installing power equipment 7 in part of it.
Fig. 6 is the summary side elevation for indicating cabinet matrix 2 and the engaging part of power equipment 7 shown in FIG. 1.Fig. 3 tables Show around the engaging part 102 from left side in the case of indoor unit 1.As above-mentioned, the drawing front side of Fig. 6 is conduct For being fixed in boss portion 101 and the opening face 103 (with reference to Fig. 5) in the face of opening, the face other than the face is to have front 102a, 102b above, following 102c, back side 102d, for Fig. 3 inboard right side 102e (with reference to Fig. 7) structure.
By the engaging part 102, on the face other than opening face 103 (with reference to Fig. 5), by front 102a, 102b above, 102c, back side 102d, right side 102e limitation movements below, can only be acted on the direction for being provided with opening face 103, can Load and unload boss portion 101 and engaging part 102.
Secondly, such as in the case of above structure, it can be moved to opening 103 side of face, only merely utilize opening, boss portion 101 are just easy to fall off with engaging part 102.Therefore, by engaging part 102 be orthogonal to 102a before opening face 103, Any of 102b, following 102c, back side 102d or in which several upper setting elastic rib 102f above, it is difficult to simply to opening Mouth 103 side of face is detached from, and can realize arbitrary handling.
Fig. 7 is sectional view A-A shown in fig. 6, is the figure for indicating elastic rib 102f.Elastic rib 102f is set to front 102a On any of (with reference to Fig. 6), 102b above, following 102c, back side 102d (with reference to Fig. 6) or multiple, its setting is not limited Position, but the end face (the insertion entrance of boss portion 101) or close by being disposed in proximity to opening face 103 (with reference to Fig. 5) It is formed on the position at the center of the inside in the face (for example, 102b, following 102c above) of engaging part 102, be can be obtained preferably Elastic effect (with reference to Fig. 5 and Fig. 6).
Fig. 8 is the installation photo for the fastening state for indicating boss portion 101 and engaging part 102.It can be seen that, boss portion 101 It is incorporated in the inside (being incorporated in incorporating section) of engaging part 102, the entrance of the incorporating section by being used as engaging part 102 The elastic rib 102f of protrusion, the outside of boss portion 101 are reliably locking by protrusion.
Also, in the present embodiment, in boss portion 101 use circular shape, this be in order to more swimmingly into The handling of row boss portion 101 and engaging part 102 do not limit the shape of boss portion 101.For example, can be with square shape Fillet (shape for making rounds corners) is arranged in matrix on its quadrangle.In this case, as shown in fig. 7, radius of corner (chamfering half Diameter) with the relationship of the hooks size H of elastic rib 102f it is preferably radius of corner R > hook sizes H.
In the present embodiment, installation and outdoor unit as described above on terminal board 7b are needed in power equipment 7 Connecting line operation, in the control base board of inside for being incorporated in power equipment 7 connect fan electromotor 6 (referring to Fig.1) Deng electric wire operation, to its operating direction applied force.For this, by the fixation side for making boss portion 101 and engaging part 102 To coincidence, it can fix, keep all parts.
It specifically describes, in the structure of the present embodiment, the front of terminal board 7b towards indoor unit 1 (referring to Fig.1) configures, The electric wire insertion section positioned at the lower parts terminal board 7b is set obliquely to configure in a manner of towards front from the workability of connecting line. Therefore, into the connection operation of terminal board 7b, from the front of indoor unit, apply in above-below direction and on front-rear direction Power.
In contrast, connecting the electric wire of fan electromotor 6 shown in FIG. 1 etc. in the control base board inside power equipment 7 In the case of, due to carrying out operation from the right side of indoor unit 1, apply in the lateral direction from the front of indoor unit 1 Power.
To the operation more than operation predominantly of 7 applied force of power equipment, above-mentioned the enumerated company to terminal board 7b It is the operation most reinforced to connect operation.In contrast, by make to be set to 102a before engaging part 102,102b above, below 102c, back side 102d, right side 102e in the upper and lower directions applied into the connection operation of terminal board 7b shown in Fig. 2 and The mode that front-rear direction overlaps configures, and can reliably keep, fixes in the case where applying big power.
In addition, the power of the left and right directions applied in the connection of the electric wire of fan electromotor 6 (referring to Fig.1) etc. relative to Power in above-mentioned terminal board 7b is very small.Therefore, by making 103 side of the opening face i.e. elastic rib 102f (references of engaging part 102 It Fig. 7) overlaps and configures, the fixation of component can be all carried out relative to any operation, is kept.
Also, in present embodiment shown in Fig. 5, the installation knot using boss portion 101 and engaging part 102 is formed Structure, but by the way that threaded hole 101a and screw opening portion 102g is respectively set, can also carry out the fixation carried out by screw.The feelings Under condition, additional screw for fixing, but since chassis cover 3 shown in FIG. 1 needs after being installed on cabinet matrix 2 by screw 8 fix, therefore by using the screw 8 by the threaded hole 101a for being set to boss portion 101, be set in engaging part 102 Screw opening portion 102g is penetrated through with chassis cover 3 and is fixed by screw 8 together, and will not increase number of components can consolidate Fixed (with reference to Fig. 5).That is, realizing one of effect of the present invention, being the structure without using dedicated screw.
More than, the air conditioner of the present embodiment on cabinet matrix 2 as shown in figure 5, have boss portion 101, in parts of electric Have engaging part 102, the one side opening of above-mentioned engaging part 102, as shown in Fig. 6 and Fig. 7, before other faces setting on case 7 Face 102a, 102b above, following 102c, back side 102d, right side 102e, in front 102a, 102b above, following 102c, the back of the body Has elastic rib 102f in any surface of face 102d.
By front 102a, 102b above, following 102c, back side 102d, right side 102e and elastic rib 102f without Dedicated fixed component etc. is used, the structure that can be fixed and keep boss portion 101 and engaging part 102 is become.
Moreover, as shown in figure 5, being threaded hole 101a in boss portion 101, screw use being arranged in engaging part 102 Opening portion 102g, by share for fix chassis cover 3 screw 8 (referring to Fig.1) carry out screw fix, it is not necessary to addition it is special solid Mounting structure appropriate can be become by determining component.
In the mounting structure that the component that the air conditioner of present embodiment has inside by it is fixed to one another, in one side Have the boss portion 101 as fixed matrix, has the engaging part 102 engaged with boss portion 101 in another party.Engaging In component 102, so that a direction in installation base portion 101 is open, be arranged in its whole or part of it in the other direction Stationary wall (for example, front 102a, 102b above, following 102c, back side 102d, right side 102e), only in a side of opening It is movable upwards.In addition, the elasticity of protrusion is provided as in a part for above-mentioned stationary wall by the direction relative to opening Rib 102f (with reference to Fig. 6 and Fig. 7), also limits the movement to opening direction, has the structure for being not easy to unload.According to this embodiment party Formula, which can be realized, can inhibit the fixation of mobile component relative to either direction, keep.
Also, present invention is not limited to the embodiments described above, including various deformation example.For example, above-described embodiment be in order to The content for being readily appreciated that the explanation of the present invention and explaining in detail, is not necessarily limited to the content for having the entire infrastructure of explanation.
Fig. 9 is other the exemplary summary side elevations for indicating boss portion 101A and engaging part 102A.In figure 6, the back side 102d is relative to the inclined face of upper and lower directions, and but it is not limited to this.Engaging part 102A is compared with engaging part 102, Back side 102dA can be made opposed with front 102a for upper and lower directions.That is, engaging part 102A has with opening face 103 The shape of cuboid.That is, cuboid is formed by front 102a, 102b above, following 102c, back side 102dA, right side 102e. In the present embodiment, referred to as the engaging part 102 of approximately cuboid when be the structure for including Fig. 6 and Fig. 9.
In the present embodiment, the power equipment 7 in Fig. 1 as installing component about indoor unit 1 illustrates, Power equipment, the sensor class (for example, image pickup part, temperature detecting part) of indoor unit outdoor unit, the airconditioning control of outdoor unit The mounting structure of present embodiment can also be applied in terminal (remote control).

Claims (8)

1. a kind of air conditioner, which is characterized in that
Have:
It is set to the boss portion of cabinet;And
Installing component, with engaging part, which is provided with the incorporating section that can store above-mentioned boss portion in inside,
Entrance of the above-mentioned engaging part in above-mentioned incorporating section has protrusion,
The outside of above-mentioned boss portion is locking by raised part.
2. air conditioner according to claim 1, which is characterized in that
There is threaded hole in above-mentioned boss portion,
There is screw opening portion in above-mentioned engaging part,
Installation is fixed in above-mentioned threaded hole by above-mentioned screw with screw with opening portion, which is installed with screw to above-mentioned machine The chassis cover that case is covered.
3. air conditioner according to claim 1, which is characterized in that
Above-mentioned engaging part is formed by elastic material.
4. air conditioner according to claim 1, which is characterized in that
Above-mentioned engaging part is the approximately cuboid shape with the opening face being inserted into for above-mentioned boss portion.
5. air conditioner according to claim 4, which is characterized in that
It is provided with opening portion on the face opposed with above-mentioned opening face.
6. air conditioner according to claim 4, which is characterized in that
It is respectively provided with raised part on the opposed face abutted with above-mentioned opening face.
7. air conditioner according to claim 1, which is characterized in that
Above-mentioned engaging part is formed by resin.
8. air conditioner according to claim 1, which is characterized in that
Above-mentioned installing component is power equipment.
CN201810152220.4A 2017-02-22 2018-02-14 Air conditioner Active CN108469061B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017031472A JP6817846B2 (en) 2017-02-22 2017-02-22 Air conditioner
JP2017-031472 2017-02-22

Publications (2)

Publication Number Publication Date
CN108469061A true CN108469061A (en) 2018-08-31
CN108469061B CN108469061B (en) 2021-05-18

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Application Number Title Priority Date Filing Date
CN201810152220.4A Active CN108469061B (en) 2017-02-22 2018-02-14 Air conditioner

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CN (1) CN108469061B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7310596B2 (en) * 2019-12-25 2023-07-19 株式会社富士通ゼネラル Ceiling-mounted air conditioner

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07225031A (en) * 1994-02-10 1995-08-22 Toshiba Ave Corp Air conditioner
JPH0960914A (en) * 1995-08-22 1997-03-04 Toshiba Corp Front face panel structure of air-conditioner
CN1517615A (en) * 2003-01-20 2004-08-04 三洋电机株式会社 Air conditioner
CN201359337Y (en) * 2007-12-27 2009-12-09 东芝开利株式会社 Indoor machine of air conditioner
CN202613675U (en) * 2012-04-19 2012-12-19 广东美的电器股份有限公司 Fixed structure for electric control boxes
CN202885163U (en) * 2012-10-15 2013-04-17 广东美的电器股份有限公司 Electric control box fixing device and air-conditioner
CN203375615U (en) * 2013-07-12 2014-01-01 美的集团武汉制冷设备有限公司 Air conditioner, electric control box and installation structure of electric control box
CN204006575U (en) * 2014-07-07 2014-12-10 南方英特空调有限公司 Air-conditioning box fastening structure of shell

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07225031A (en) * 1994-02-10 1995-08-22 Toshiba Ave Corp Air conditioner
JPH0960914A (en) * 1995-08-22 1997-03-04 Toshiba Corp Front face panel structure of air-conditioner
CN1517615A (en) * 2003-01-20 2004-08-04 三洋电机株式会社 Air conditioner
CN201359337Y (en) * 2007-12-27 2009-12-09 东芝开利株式会社 Indoor machine of air conditioner
CN202613675U (en) * 2012-04-19 2012-12-19 广东美的电器股份有限公司 Fixed structure for electric control boxes
CN202885163U (en) * 2012-10-15 2013-04-17 广东美的电器股份有限公司 Electric control box fixing device and air-conditioner
CN203375615U (en) * 2013-07-12 2014-01-01 美的集团武汉制冷设备有限公司 Air conditioner, electric control box and installation structure of electric control box
CN204006575U (en) * 2014-07-07 2014-12-10 南方英特空调有限公司 Air-conditioning box fastening structure of shell

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Publication number Publication date
CN108469061B (en) 2021-05-18
JP6817846B2 (en) 2021-01-20
JP2018136095A (en) 2018-08-30

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