CN115789776B - Fan coil for air conditioner air supply system - Google Patents
Fan coil for air conditioner air supply system Download PDFInfo
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- CN115789776B CN115789776B CN202310083337.2A CN202310083337A CN115789776B CN 115789776 B CN115789776 B CN 115789776B CN 202310083337 A CN202310083337 A CN 202310083337A CN 115789776 B CN115789776 B CN 115789776B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to the field of fan coil to a fan coil for air conditioner air supply system is disclosed, including the case casing, the rigid coupling has the baffle that separates the case casing in the case casing, the motor is installed to one side that the case casing is located the baffle, the output drive of motor has the fan subassembly of installing in the case casing, the case casing is located the terminal surface of motor one end and has seted up back return air inlet, the case casing is located the bottom surface of motor one end and has seted up down the return air inlet, return air inlet and back return air inlet intercommunication each other down, the equal rigid coupling in edge of return air inlet and back return air inlet lateral wall has the connecting strip down, bolted connection has dust screen or closing plate between the connecting strip of both sides. This application can make the producer need not to produce two kinds of different casings when producing fan coil shell, has reduced manufacturing cost.
Description
Technical Field
The present application relates to the field of fan coils, and more particularly to a fan coil for an air conditioning air supply system.
Background
The fan coil is also known as a fan coil unit and is the end unit in an air conditioning air supply system. The motor in the wind coil pipe is utilized to drive the fan to operate, the fan blows air into the coil pipe flowing with chilled water or hot water, so that the air is cooled or heated, and finally enters the room, and the cold-heat conversion of the air is realized.
However, in the process of implementing the related technical scheme, at least the following technical problems are found: the fan coil is installed in the ceiling or suspended ceiling generally, in order to adapt to the installation requirement, the return air box of the casing of the fan coil can be divided into lower return air or rear return air, so that a common manufacturer can produce two different shells when producing the fan coil shell, and the production cost can be improved.
Disclosure of Invention
In order to reduce the number of cases that a manufacturer would produce when producing a fan coil housing for manufacturing cost increases, the present application provides a fan coil for an air conditioning air supply system.
The application provides a fan coil for air conditioner air supply system, including the case casing, the rigid coupling has the baffle that separates the case casing in the case casing, the motor is installed to one side that the case casing is located the baffle, the output drive of motor has the fan subassembly of installing in the case casing, the case casing is located the terminal surface of motor one end has seted up back return air inlet, the case casing is located the lower return air inlet has been seted up to the bottom surface of motor one end, lower return air inlet with back return air inlet communicates each other, lower return air inlet with the equal rigid coupling in edge of back return air inlet lateral wall has the connecting strip, both sides bolted connection has dust screen or closing plate between the connecting strip.
Further, the fan assembly comprises a wind wheel coaxially connected with the output shaft of the motor, an upper volute and a lower volute which are sleeved outside the wind wheel and are mutually clamped, and an air supply pipe which is arranged on the box shell and penetrates through the partition plate, two symmetrically arranged ventilation holes are formed in the lower volute, an arc-shaped sliding rail is fixedly connected with the inner cambered surface of the lower volute, a closing plate for sealing the ventilation holes is arranged on the arc-shaped sliding rail in a sliding manner, the lower volute is arranged on the air supply pipe, and one ventilation hole is communicated with the air supply pipe.
Further, the outer cambered surfaces of the two sides of the lower volute and the outer side walls of the two sides of the air supply pipe are respectively provided with a mounting mechanism, each mounting mechanism comprises two arc guide bars which are symmetrically arranged and fixed on the side walls of the air supply pipe, two clamping pieces which are fixedly connected to the outer side walls of the arc guide bars, the outer cambered surfaces of the lower volute and the arc guide bars are mutually parallel, a guide rod which respectively penetrates through the two arc guide bars is vertically fixedly connected to the outer cambered surfaces of the lower volute, the guide rod can slide along the arc guide bars, a clamping rod is vertically arranged on the guide rod in a penetrating mode, the length direction of the clamping rod is parallel to the axis of the lower volute, each clamping piece comprises an integrally formed adjusting part and a clamping groove part, the bolt of each adjusting part is connected to the outer side wall of the arc guide bar, the notch direction of each clamping groove part is consistent with the length direction of each arc guide bar, and the clamping rod is in interference fit.
Further, the guide rods are fixedly connected at the arc top of the outer arc surface of the lower volute, at the two ends of the arc surface and at the middle part between the two ends of the arc surface and the arc top, and clamping pieces for being respectively clamped with clamping rods at different positions on the outer arc surface of the lower volute are fixedly connected at the two ends and the middle part of the arc guide strip.
Further, the mounting mechanism further comprises a limit nut which is connected with the end part of the guide rod in a threaded manner and is positioned below the arc-shaped guide bar, and the clamping rod is positioned above the arc-shaped guide bar.
Further, a sealing cotton sliver is fixedly connected with the end face of one end, communicated with the lower volute, of the air supply pipe, and the sealing cotton sliver is in contact with the outer cambered surface of the lower volute.
Furthermore, the plug board is fixedly connected to the end face interface of the upper volute, the fixing plate is fixedly connected to the end face interface of the lower volute, and a socket in interference fit with the plug board is formed in the fixing plate.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
1. because lower return air inlet and back return air inlet have been seted up on the case casing, when the dust guard was installed to lower return air inlet department, can make the direction of opening and shutting of last spiral case and lower spiral case perpendicular to dust guard, when the dust guard was installed to back return air inlet, can 90 degrees rotatory spiral cases, make the direction of opening and shutting of last spiral case and lower spiral case perpendicular to dust guard again, consequently can realize adapting to different return air direction on a case casing and adjust, need not to produce different grade type case casings, manufacturing cost has been reduced, and no matter the case casing is return air down or return air after, if need to maintain the clearance to fan subassembly, can dismantle the dust guard, and take down the spiral case, be convenient for operating personnel's maintenance clearance.
2. Due to the adoption of the mounting mechanism, when the opening and closing directions of the upper volute and the lower volute are adjusted, the limit nut below the arc-shaped guide bar is removed only before the lower volute rotates by 90 degrees, then the clamping rod above the arc-shaped guide bar is separated from the clamping piece, and then the lower volute can be freely rotated, so that the volutes in different opening and closing directions are not required to be replaced, the blast pipe is not required to be detached, and the application of multiple scenes is realized.
Drawings
FIG. 1 is a schematic illustration of one installation of a dust screen and seal plate in a fan coil in accordance with an embodiment of the present application;
FIG. 2 is a schematic illustration of another installation of dust screens and seal plates in a fan coil in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of a portion of a tank housing according to an embodiment of the present application;
FIG. 4 is a schematic illustration of one installation of the upper and lower volutes in an embodiment of the present application;
FIG. 5 is another installation schematic of the upper and lower volutes in an embodiment of the present application;
FIG. 6 is a schematic explosion diagram between the upper and lower volutes in an embodiment of the present application;
FIG. 7 is a schematic view of the overall structure of the mounting mechanism on both sides of the air pipe in the embodiment of the present application;
FIG. 8 is an enlarged schematic view of portion A of FIG. 5, primarily illustrating the construction of the mounting mechanism;
in the figure: 1. a case housing; 11. a connecting strip; 12. a dust screen; 13. a sealing plate; 101. a rear return air inlet; 102. a lower return air inlet; 2. a partition plate; 21. a mounting hole; 3. a motor; 4. a fan assembly; 41. a wind wheel; 42. an upper volute; 4201. inserting plate; 43. a lower volute; 4301. a fixing plate; 43011. a socket; 431. a vent hole; 432. an arc-shaped slide rail; 433. a guide rod; 44. an air supply pipe; 45. a closing plate; 5. a mounting mechanism; 51. arc-shaped conducting bars; 52. a clamping piece; 521. an adjusting part; 522. a clamping groove part; 53. a clamping rod; 54. a limit nut; 501. a connecting rod; 502. a U-shaped rod; 6. sealing the cotton sliver; 7. a water pipe.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The embodiment of the application discloses a fan coil for air conditioner air supply system, referring to the figure 1, the fan coil includes case casing 1, baffle 2, motor 3, fan subassembly 4, water pipe 7. The box shell 1 is a cuboid sheet metal shell, and the box shell 1 is horizontally arranged on a suspended ceiling or a shed roof; the partition board 2 is vertically fixedly connected in the box shell 1, the partition board 2 is perpendicular to the central line of the box shell 1 in the width direction, the partition board 2 divides the box shell 1 into two spaces, the end face of one end of the box shell 1 in the width direction is provided with a rear return air inlet 101, the bottom surface of the box shell 1 is provided with a lower return air inlet 102, the lower return air inlet 102 is communicated with the rear return air inlet 101, the width and the length of the lower return air inlet 102 and the rear return air inlet 101 are consistent with the length and the width of the inner cavity of the box shell 1, and the end face of the other end of the box shell 1 in the width direction is the air outlet of a fan coil; the motor 3 is arranged in the box shell 1 and positioned at one side of the lower return air inlet 102; the fan assembly 4 is provided with two groups and is respectively positioned at two sides of the motor 3, and the motor 3 drives the fan assembly 4 to operate; the water pipe 7 is communicated with a coil pipe arranged in the box shell 1, and the coil pipe in the box shell 1 is positioned on one side of the partition plate 2, which is away from the rear return air inlet 101.
Chilled water or hot water can be input into the coil pipe in the box shell 1 by utilizing the water pipe 7, the motor 3 can drive the fan assembly 4 to operate, the fan assembly 4 can blow air to the other side of the partition plate 2, the air is in contact with the coil pipe in the box shell 1, when chilled water flows in the coil pipe, the air can be cooled, and when hot water flows in the coil pipe, the air can be heated, so that the cold-heat conversion of the air is realized.
Referring to fig. 1, fig. 2 and fig. 3, edges of side walls of the lower return air inlet 102 and the rear return air inlet 101 are fixedly connected with connecting strips 11, a dust screen 12 or a sealing plate 13 is arranged between the connecting strips 11 on two sides of the lower return air inlet 102 and the rear return air inlet 101, the dust screen 12 or the sealing plate 13 is connected to the connecting strips 11 through bolts, when the lower return air inlet 102 is the dust screen 12, the rear return air inlet 101 is the sealing plate 13 (shown in fig. 1), when the lower return air inlet 102 is the sealing plate 13, the rear return air inlet 101 is the dust screen 12 (shown in fig. 2), and the bolt connection positions of the dust screen 12 and the sealing plate 13 are the same, so that adjustment in different return air directions can be adapted to on one box housing 1 can be realized, different types of box housings 1 do not need to be produced, and production cost is reduced.
Referring to fig. 3 and 4, the partition plate 2 is symmetrically provided with mounting holes 21, and two groups of fan assemblies 4 are respectively positioned at the mounting holes 21 at two sides. The fan assembly 4 comprises a wind wheel 41, an upper volute 42, a lower volute 43 and a blast pipe 44, wherein the wind wheel 41 is coaxially connected to an output shaft of the motor 3, the upper volute 42 and the lower volute 43 are mutually abutted and covered outside the wind wheel 41, one end of the blast pipe 44 and one end of the lower volute 43 are communicated with the lower volute 43, the other end of the blast pipe passes through a mounting hole 21 in the partition plate 2, mounting mechanisms 5 are arranged between the side walls of two sides of the blast pipe 44 and the extrados surface of the lower volute 43, and the mounting mechanisms 5 can enable the upper volute 42 and the lower volute 43 after being connected to freely rotate.
With continued reference to fig. 5, 6 and 7, the lower volute 43 is symmetrically provided with ventilation holes 431, the two ventilation holes 431 are respectively located at two sides of the arc top of the lower volute 43, and the two ventilation holes 431 can be respectively communicated with the air supply pipe 44 by rotating the lower volute 43. Two arc-shaped sliding rails 432 which are parallel to each other are fixedly connected on the inner cambered surface of the lower volute 43, the two arc-shaped sliding rails 432 are attached to the inner cambered surface of the lower volute 43, and the two arc-shaped sliding rails 432 are respectively close to the end parts of the two ends of the lower volute 43. The fan assembly 4 further includes a closing plate 45 for sealing the ventilation holes 431, wherein the closing plate 45 is slidably disposed between arc-shaped sliding rails 432 on both sides, and one closing plate 45 is disposed in one lower volute 43, so that the closing plate 45 can close only one ventilation hole 431. In addition, the end face of the blast pipe 44, which is communicated with one end of the lower volute 43, is fixedly connected with a sealing cotton sliver 6, the sealing cotton sliver 6 is in contact with the outer cambered surface of the lower volute 43, and a gap between the lower volute 43 and the blast pipe 44 can be sealed by using the sealing cotton sliver 6, so that the air conveyed by the fan assembly 4 is reduced and flows out from the gap between the lower volute 43 and the blast pipe 44.
Referring to fig. 1 and 4, when the dust guard is installed at the lower return air inlet 102, the opening and closing directions of the upper and lower volutes 42 and 43 may be made perpendicular to the dust guard; referring to fig. 2 and 5, when the dust guard is mounted to the rear return air inlet 101, the scroll case may be rotated by 90 degrees, again such that the opening and closing directions of the upper scroll case 42 and the lower scroll case 43 are perpendicular to the dust guard. Therefore, no matter the box shell 1 is lower return air or rear return air, if the fan assembly 4 needs to be maintained and cleaned, the dust-proof plate can be detached, and the upper volute 42 can be taken down, so that the maintenance and cleaning of operators are facilitated.
Referring to fig. 7 and 8, the end surface interfaces of the two ends of the upper volute casing 42 are fixedly connected with a plugboard 4201, the cross section of the plugboard 4201 is L-shaped, the end surface interfaces of the two ends of the lower volute casing 43 are fixedly connected with a fixing plate 4301, and the fixing plate 4301 is provided with a socket 43011 in interference fit with the plugboard 4201. When the upper scroll 42 needs to be connected with the lower scroll 43, the insertion plate 4201 of the upper scroll 42 is inserted into the insertion opening 43011 of the fixing plate 4301 of the lower scroll 43, so that the upper scroll 42 is fixed to the lower scroll 43.
With continued reference to fig. 7 and 8, the mounting mechanism 5 includes an arcuate guide bar 51, a clip 52, a clip rod 53, and a stop nut 54. The arc conducting bars 51 are provided with two, two arc conducting bars 51 are parallel to each other, the arc length of the arc conducting bars 51 is slightly larger than half of the arc length of the lower volute 43, the arc surface of the arc conducting bars 51 is parallel to the outer arc surface of the lower volute 43, a U-shaped rod 502 is fixedly connected between the two arc conducting bars 51, the U-shaped rod 502 is located at one side, deviating from the lower volute 43, of the arc conducting bars 51, the two arc conducting bars 51 can be connected through the U-shaped rod 502, a connecting rod 501 is fixedly connected between the arc conducting bars 51 on one side, close to the blast pipe 44, and the outer side wall of the blast pipe 44, and the arc conducting bars 51 can be fixed on the blast pipe 44 through the connecting rod 501.
Referring to fig. 6 and 8, a guide rod 433 penetrating through the space between two arc guide bars 51 is vertically and fixedly connected to the outer arc surface of the lower volute 43, and the guide rod 433 is fixedly connected to the arc top, the two ends and the middle part between the two ends and the arc top of the outer arc surface of the lower volute 43. The clamping rods 53 in the mounting mechanism 5 are cylindrical, a plurality of clamping rods 53 are arranged, and the clamping rods 53 are vertically inserted into the guide rods 433; the clamping piece 52 comprises an integrally formed adjusting portion 521 and a clamping groove portion 522, the adjusting portion 521 is in a strip shape and is vertically connected to the arc-shaped conducting bar 51 through bolts, the clamping groove portion 522 is located at the top of the adjusting portion 521 and above the arc-shaped conducting bar 51, a notch of the clamping groove portion 522 is in interference fit with a guide rod 433 on the lower volute 43, in addition, two ends and the middle of the arc-shaped conducting bar 51 are fixedly connected with clamping pieces 52 which are used for being respectively clamped with clamping rods 53 at different positions on the outer cambered surface of the lower volute 43, and the notch directions of the clamping groove portions 522 in the clamping pieces 52 are consistent. A stop nut 54 in the mounting mechanism 5 is threadedly connected to the end of the guide rod 433 remote from the end of the lower volute 43, and the stop nut 54 is located below the arc-shaped guide bar 51.
Before the lower volute 43 is rotated by 90 degrees, the limiting nut 54 below the arc-shaped guide bar 51 is removed, then the clamping rod 53 above the arc-shaped guide bar 51 is separated from the clamping piece 52, then the lower volute 43 can be freely rotated, and after the lower volute 43 is rotated by 90 degrees, the clamping rod 53 on the guide rod 433 on the other side of the lower volute 43 can be clamped to the clamping piece 52, so that the lower volute 43 is fixed.
The present application may illustrate its functional principles by the following modes of operation:
when the fan coil is needed as the lower return air, the dust screen 12 can be mounted on the connecting strip 11 of the lower return air inlet 102, the sealing plate 13 can be mounted on the connecting strip 11 of the rear return air inlet 101, and when the dust screen is mounted on the lower return air inlet 102, the opening and closing directions of the upper volute 42 and the lower volute 43 can be perpendicular to the dust screen; and when the dust guard is installed to the rear return air inlet 101, the spiral case can be rotated by 90 degrees, so that the opening and closing directions of the upper spiral case 42 and the lower spiral case 43 are perpendicular to the dust guard again, and therefore, no matter the case housing 1 is the lower return air or the rear return air, if the fan assembly 4 needs to be maintained and cleaned, the dust guard can be disassembled, and the upper spiral case 42 is taken down, so that the maintenance and cleaning of operators are facilitated.
In addition, when the opening and closing directions of the upper volute 42 and the lower volute 43 are adjusted, only the limiting nut 54 below the arc-shaped guide bar 51 needs to be removed before the lower volute 43 is rotated by 90 degrees, then the clamping rod 53 above the arc-shaped guide bar 51 is separated from the clamping piece 52, and then the lower volute 43 can be freely rotated, so that the volutes in different opening and closing directions do not need to be replaced, the blast pipe 44 does not need to be detached, and the application of multiple scenes is realized.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all equivalents and modifications as fall within the scope of the present application.
Claims (5)
1. The utility model provides a fan coil for air conditioner air supply system, includes case casing (1), the rigid coupling has baffle (2) with case casing (1) partition plate in case casing (1), motor (3) are installed to one side that case casing (1) is located baffle (2), the output drive of motor (3) has fan subassembly (4) of installing in case casing (1), a serial communication port, back return air inlet (101) have been seted up to the terminal surface that case casing (1) is located motor (3) one end, case casing (1) are located lower return air inlet (102) have been seted up to the bottom surface of motor (3) one end, lower return air inlet (102) with back return air inlet (101) communicate each other, lower return air inlet (102) with the edge of back return air inlet (101) lateral wall all rigid coupling has connecting strip (11), both sides bolted connection has dust screen (12) or closing plate (13) between connecting strip (11).
The fan assembly (4) comprises a wind wheel (41) coaxially connected with an output shaft of the motor (3), an upper volute (42) and a lower volute (43) which are sleeved outside the wind wheel (41) and are mutually clamped, and an air supply pipe (44) which is arranged on the box shell (1) and penetrates through the partition plate (2), two symmetrically arranged ventilation holes (431) are formed in the lower volute (43), an arc-shaped sliding rail (432) is fixedly connected to the inner cambered surface of the lower volute (43), a closing plate (45) for sealing the ventilation holes (431) is arranged on the arc-shaped sliding rail (432) in a sliding mode, the lower volute (43) is arranged on the air supply pipe (44), and one ventilation hole (431) is communicated with the air supply pipe (44);
the utility model discloses a spiral case, including spiral case (43) down, lower spiral case (43) outer cambered surface with all be provided with installation mechanism (5) between the lateral wall of blast pipe (44) both sides, installation mechanism (5) include two symmetry settings and be fixed in arc conducting bar (51) on blast pipe (44) lateral wall, rigid coupling in two clamping piece (52) on arc conducting bar (51) relative lateral wall, spiral case (43) outer cambered surface with be parallel to each other between arc conducting bar (51) cambered surface down, perpendicular rigid coupling has guide arm (433) that run through two arc conducting bars (51) respectively on spiral case (43) outer cambered surface down, guide arm (433) can follow arc conducting bar (51) and slide, vertically wear to be equipped with clamping bar (53) on guide arm (433), the length direction of clamping bar (53) with the axis parallel of spiral case (43) down, clamping piece (52) include integrated into one piece's adjustment portion (521) and draw-in groove portion (522), adjustment portion (521) bolted connection in on conducting bar (51) outer cambered surface have guide bar (51) run through guide arm (433) respectively, clamping bar (522) and arc groove (522) length orientation.
2. A fan coil for an air-conditioning air supply system according to claim 1, wherein the guide rods (433) are fixedly connected at the arc top, at the two ends and at the middle part between the two ends and the arc top of the outer arc surface of the lower volute (43), and the clamping pieces (52) for respectively clamping the clamping rods (53) at different positions on the outer arc surface of the lower volute (43) are fixedly connected at the two ends and the middle part of the arc guide strip (51).
3. A fan coil for an air conditioning and blowing system according to claim 1, characterized in that the mounting means (5) further comprise a limit nut (54) screwed to the end of the guide rod (433) and located below the curved guide bar (51), the clamping rod (53) being located above the curved guide bar (51).
4. A fan coil for an air conditioning and air supply system according to claim 1, wherein a sealing cotton sliver (6) is fixedly connected to the end surface of the end, which is communicated with the lower volute (43), of the air supply pipe (44), and the sealing cotton sliver (6) is in contact with the extrados surface of the lower volute (43).
5. The fan coil for an air conditioning and air supply system according to claim 1, wherein the end surface interfaces of the upper volute (42) are fixedly connected with a plugboard (4201), the end surface interfaces of the lower volute (43) are fixedly connected with a fixing plate (4301), and the fixing plate (4301) is provided with a socket (43011) in interference fit with the plugboard (4201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310083337.2A CN115789776B (en) | 2023-02-08 | 2023-02-08 | Fan coil for air conditioner air supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310083337.2A CN115789776B (en) | 2023-02-08 | 2023-02-08 | Fan coil for air conditioner air supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115789776A CN115789776A (en) | 2023-03-14 |
| CN115789776B true CN115789776B (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310083337.2A Active CN115789776B (en) | 2023-02-08 | 2023-02-08 | Fan coil for air conditioner air supply system |
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| Country | Link |
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| CN (1) | CN115789776B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267319A (en) * | 2013-06-15 | 2013-08-28 | 邓明义 | Concealed air conditioner indoor unit |
| CN104863898A (en) * | 2015-05-21 | 2015-08-26 | 广东美的暖通设备有限公司 | Volute of centrifugal fan and air conditioner |
| CN214841187U (en) * | 2021-06-11 | 2021-11-23 | 海信（广东）空调有限公司 | Air pipe type air conditioner indoor unit |
| CN114811730A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air duct machine |
-
2023
- 2023-02-08 CN CN202310083337.2A patent/CN115789776B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267319A (en) * | 2013-06-15 | 2013-08-28 | 邓明义 | Concealed air conditioner indoor unit |
| CN104863898A (en) * | 2015-05-21 | 2015-08-26 | 广东美的暖通设备有限公司 | Volute of centrifugal fan and air conditioner |
| CN214841187U (en) * | 2021-06-11 | 2021-11-23 | 海信（广东）空调有限公司 | Air pipe type air conditioner indoor unit |
| CN114811730A (en) * | 2022-03-18 | 2022-07-29 | 青岛海尔空调电子有限公司 | Air duct machine |
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| Publication number | Publication date |
|---|---|
| CN115789776A (en) | 2023-03-14 |
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