CN116007058B - Fan subassembly and air conditioning indoor unit - Google Patents
Fan subassembly and air conditioning indoor unit Download PDFInfo
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- CN116007058B CN116007058B CN202211651833.5A CN202211651833A CN116007058B CN 116007058 B CN116007058 B CN 116007058B CN 202211651833 A CN202211651833 A CN 202211651833A CN 116007058 B CN116007058 B CN 116007058B
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- 238000004378 air conditioning Methods 0.000 title claims description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 91
- 238000005485 electric heating Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention relates to a fan assembly and an air conditioner indoor unit. The fan assembly includes: the spiral case is provided with a left air suction port, a right air suction port and an exhaust port communicated with the left air suction port and the right air suction port, and the left air suction port and the right air suction port are respectively positioned at the left side and the right side of the fan; the heating piece is arranged on the outer wall of the volute, and the left air suction port and the right air suction port are avoided, wherein when the fan rotates, at least part of external air flow can flow through the heating piece and be heated, and then is sucked into the volute from the left air suction port and the right air suction port and is discharged from the air outlet. The invention fully plays a role in the heating part due to the double air suction effect, and improves the electric heating efficiency. Meanwhile, the problem of electric heating assembly space is solved, the front and back size of the whole machine is not increased, and the cost of the whole machine is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fan assembly and an air conditioner indoor unit.
Background
When the air conditioner is just started, because the heating quantity is small, electric heating auxiliary heating is often needed to be added, and the heating quantity of the whole machine is improved. The prior air conditioner is generally designed in the middle of an evaporator part by electric heating, and cold air is changed into hot air by electric heating due to the action of a fan, so that the heating function is realized. Because the main air suction area of the centrifugal fan is mainly concentrated at the middle position, the heating process of the upper and lower positions of the electric heating is not easy to use, the electric heating efficiency is reduced, and the electric heating design occupies the front and rear spaces of the indoor unit of the air conditioner in the middle of the evaporator part.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a fan assembly and an air conditioner indoor unit.
The present invention provides a fan assembly comprising: the spiral case is provided with a left air suction port, a right air suction port and an air outlet communicated with the left air suction port and the right air suction port, and the left air suction port and the right air suction port are respectively positioned at the left side and the right side of the fan; the heating piece is arranged on the outer wall of the volute, and the left air suction port and the right air suction port are avoided, wherein when the fan rotates, at least part of external air flow can flow through the heating piece and be heated, and then is sucked into the volute from the left air suction port and the right air suction port, and is discharged from the air outlet.
In some embodiments, the air outlet comprises an upper air outlet and a lower air outlet, which are respectively above and below the blower; the heating piece is positioned between the left air suction port and the lower air exhaust port; and/or the heating piece is positioned between the right air suction opening and the lower air exhaust opening.
In some embodiments, the volute comprises an upper exhaust cavity, a fan cavity and a lower exhaust cavity which are communicated, the fan is arranged in the fan cavity, the left air suction opening and the right air suction opening are respectively formed at the left side and the right side of the fan cavity, the upper exhaust opening is formed in the upper exhaust cavity, and the lower exhaust opening is formed in the lower exhaust cavity.
In some embodiments, a concave space which is concave inwards is formed at the connection part of the outer wall of the fan cavity and the outer wall of the lower exhaust cavity, and the heating piece is arranged in the concave space.
In some embodiments, the heating element is fixed at one end to the fan chamber outer wall and at the other end to the bottom exhaust chamber outer wall.
In some embodiments, the heating element comprises a first heating element and a second heating element, wherein the first heating element and the second heating element are disposed side-to-side.
In some embodiments, the left and/or right side of the heating element is arc shaped for directing at least part of the external air flow towards the left and/or right suction opening.
In some embodiments, the volute comprises a volute body and a volute cover, the volute body and the volute cover snap-fit to form the upper exhaust chamber, the blower chamber, and the lower exhaust chamber.
The invention also provides an air conditioner indoor unit, which comprises: the fan assembly of any of the embodiments above.
In some embodiments, further comprising: the heat exchanger corresponds to the position of the fan assembly; the left air suction inlet and the right air suction inlet are respectively positioned at the left side and the right side of the overlooking central line of the heat exchanger.
In some embodiments, further comprising: the shell is provided with a rear air inlet, an upper air outlet and a lower air outlet; the heat exchanger and the rear air inlet are oppositely arranged between the shell and the volute; and external air flow is sucked by the rear air inlet under the action of the rotation centrifugal force of the fan, exchanges heat through the heat exchanger and then enters the left air suction inlet and the right air suction inlet.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:
And cold air is heated by the heating piece after passing through the evaporator under the double air suction effect of the left air suction port and the right air suction port, and is blown out to the air outlet through the air channel in the inner cavity of the volute. The air quantity of the double air suction is larger, and the air suction force on the two sides is also larger, so that the heating effect of the heating element is fully exerted. The invention not only can improve the heating efficiency of electric heating, but also can solve the space problem of the double-suction air duct, so that the whole machine is more slim, more exquisite and lower in cost. In addition, the heating piece sets up at spiral case outer wall, compares in the heating piece setting in the evaporimeter, and the heating piece has been close to the fan more, and the motor heat that the fan rotated and produced also can heat transfer with the heating piece when just starting for the heating piece generates heat fast, and heating efficiency promotes. The heating element avoids the left air suction port and the right air suction port, and prevents the influence on the suction air quantity.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a related art electrically powered heating fan assembly;
FIG. 2 is a schematic diagram of a blower assembly according to an exemplary embodiment of the invention;
FIG. 3 is a schematic diagram illustrating another perspective structure of a blower assembly according to an exemplary embodiment of the present invention;
FIG. 4 is an exploded schematic view of a blower assembly according to an exemplary embodiment of the invention;
FIG. 5 is a schematic diagram illustrating a blower assembly in conjunction with a heat exchanger in accordance with an exemplary embodiment of the present invention;
FIG. 6 is a top view of a fan assembly mated with a heat exchanger, according to an exemplary embodiment of the present invention;
it should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, in the related art, an electric heating part 202 is designed in the middle of an evaporator part 201, and a heating function is realized by changing cool air into hot air through electric heating due to a centrifugal fan 203. Because the main air suction area of the centrifugal fan 203 is mainly concentrated in the middle position, the heating process of the upper and lower positions of the electric heating component 202 is not easy to be utilized, the electric heating efficiency is reduced, and the electric heating design occupies the front and rear spaces of the indoor unit of the air conditioner in the middle of the evaporator component.
The invention provides a fan assembly capable of double air suction, which changes the assembly mode of the fan assembly and a heating piece, designs the heating piece in a double air suction flow passage area, fully plays a role due to the double air suction effect, and improves the electric heating efficiency. Meanwhile, the problem of electric heating assembly space is solved, the front and back size of the whole machine is not increased, and the cost of the whole machine is reduced.
As shown in fig. 2 to 5, the fan assembly of the present invention includes: volute 10, fan 20 and heating element 30.
The volute 10 is provided with a left suction inlet 11, a right suction inlet 12, and an exhaust outlet in communication with the left suction inlet 11 and the right suction inlet 12. The fan 20 is disposed in the volute 10, wherein the left suction port 11 and the right suction port 12 are located at the left side and the right side of the fan 20, respectively. The fan 20 rotates to generate centrifugal force to enable the inner cavity of the volute 10 to generate negative pressure, external air flow is sucked into the inner cavity from the left air suction inlet 11 and the right air suction inlet 12, and then is discharged from the air outlet through an inner cavity air channel.
The heating element 30 is arranged on the outer wall of the volute 10 and avoids the left air suction inlet 11 and the right air suction inlet 12, namely, the opening positions of the left air suction inlet 11 and the right air suction inlet 12 are not covered, and the left air suction inlet 11 and the right air suction inlet 12 are not covered. Wherein, when the fan rotates, at least part of external air flow can flow through the heating element 20 and be heated, and then is sucked into the volute 10 from the left air suction inlet 11 and the right air suction inlet 12 and is discharged from the air outlet. Further, the heating member 30 may be located at a region through which the external air flows when the air is sucked into the left suction port 11 and the right suction port 12.
When the fan assembly is applied to an air conditioner, and the air conditioner is started to heat, cold air is heated through the heating piece after passing through the evaporator under the double-suction effect of the left suction inlet 11 and the right suction inlet 12 due to the poor heating effect of the evaporator, and is blown out to the air outlet through the air channel in the inner cavity of the volute. The air quantity of the double air suction is larger, and the air suction force on the two sides is also larger, so that the heating effect of the heating element is fully exerted. The invention not only can improve the heating efficiency of electric heating, but also can solve the space problem of the double-suction air duct, so that the whole machine is more slim, more exquisite and lower in cost. In addition, the heating element 30 is arranged on the outer wall of the volute 10, compared with the heating element which is arranged in the evaporator, the heating element 30 is closer to the fan, and motor heat generated by rotation of the fan can also exchange heat with the heating element 30 when the fan is just started, so that the heating element 30 rapidly generates heat, and the heating efficiency is improved. The heating member 30 avoids the left suction inlet 11 and the right suction inlet 12, and prevents the influence on the suction air quantity.
In some embodiments, the scroll casing 10 exhaust includes an upper exhaust 13 and a lower exhaust 14, the upper exhaust 13 and the lower exhaust 14 being located above and below the blower 20, respectively. The upper air outlet 13 can be connected with an upper air outlet of the air conditioner indoor unit, and the lower air outlet 13 can be connected with a lower air outlet of the air conditioner indoor unit. The heating member 30 may be fixed to the outer wall of the scroll case 10 at a position between the left suction port 11 and the lower exhaust port 14; and/or the heating element 30 is located between the right suction port 12 and the lower exhaust port 14. Because the air inlet of the indoor unit of the air conditioner is generally located at the lower position, most air flows are sucked into the left air suction inlet 11 and the right air suction inlet 12 from bottom to top, and the heating element 30 is located at the position, namely the position where most air flows must pass, so that most air flows are heated, the heat exchange quantity of the air flows and the heating element 30 is improved, and the heating efficiency is improved.
Specifically, the volute 10 includes an upper exhaust cavity 101, a fan cavity 102 and a lower exhaust cavity 103 which are communicated, the fan 20 is disposed in the fan cavity 102, the left air suction port 11 and the right air suction port 12 are respectively formed at the left side and the right side of the fan cavity 102, the upper exhaust port 13 is formed in the upper exhaust cavity 101, and the lower exhaust port 14 is formed in the lower exhaust cavity 103. The fan chamber 102 is located between the upper exhaust chamber 101 and the lower exhaust chamber 102.
In some embodiments, a concave space 104 is formed at the connection between the outer wall of the fan chamber 102 and the outer wall of the lower exhaust chamber 103, and the heating element 30 is disposed in the concave space 104. Not only the concave space 104 is fully utilized, but also other spaces are not additionally occupied, and the miniaturization of the indoor unit of the air conditioner is facilitated. In addition, the partial concave space 104 is located below the left air suction inlet 11 and the right air suction inlet 12 and is closer to the left air suction inlet 11 and the right air suction inlet 12, and most of air flow exchanges heat through the heating element 30 at the concave space 104, so that heat exchange efficiency is improved.
In some embodiments, the heating element 30 is fixed at one end to the outer wall of the fan chamber 102 and at the other end to the outer wall of the lower exhaust chamber 103. The heating member 30 and the recess space 104 may form a triangular supporting structure, which improves the overall strength of the scroll casing 10, and thus, can reduce noise of the fan 20 during rotation.
In some embodiments, the heating member 30 includes a first heating member 31 and a second heating member 32, wherein the first heating member 31 and the second heating member 32 are arranged side-to-side. The heating parts are arranged on the left side and the right side, so that the air flow sucked by the left air suction inlet 11 and the right air suction inlet 12 is heated more uniformly, and the heating efficiency of the left and right sucked air flows is ensured.
In some embodiments, the left and/or right side portions of the heating element 30 are arc shaped for directing at least a portion of the external airflow to the left and/or right suction ports. The left and/or right arc-shaped heating element 30 presents streamline shape, and external air flow is sucked into the paths of the left air suction inlet 11 and the right air suction inlet 12 to be directly not impacted on the heating element 30, but is guided to the left air suction inlet and/or the right air suction inlet through the arc surface, so that the air flow is smoother, and the noise generated by the air flow impacting on the heating element 30 can be reduced.
In some embodiments, the volute 10 includes a volute body 16 and a volute cover 17, where the volute body 16 and the volute cover 17 snap-fit to form an upper exhaust chamber 101, a blower chamber 102, and a lower exhaust chamber 103. A seal may also be provided between the volute body 16 and the volute cover 17 to seal the interior cavity of the volute 10. The scroll case may be not limited to the above-described split structure, but may be an integrally formed structure.
As shown in fig. 5 and 6, the present invention provides an air conditioner indoor unit comprising: the fan assembly of any of the embodiments above.
The indoor unit of the air conditioner further comprises: a heat exchanger 40 corresponding to the fan assembly position; the left air suction inlet 11 and the right air suction inlet 12 of the fan assembly are respectively positioned at the left side and the right side of the overlooking center line L of the heat exchanger.
The indoor unit of the air conditioner comprises a shell 50, wherein the shell 50 is provided with a rear air inlet, an upper air outlet and a lower air outlet, the heat exchanger 40 is arranged in the shell 50, corresponds to the position of the rear air inlet and is positioned between the shell 50 and the volute 10, and external air flow is sucked into the left air suction inlet 11 and the right air suction inlet 12 through the rear air inlet under the action of rotation centrifugal force of the fan 20 after heat exchange of the heat exchanger 40.
As shown in fig. 6, the heat exchanger 40 may be arc-shaped, including a left end portion and a right end portion, which are symmetrical with respect to an arc segment center line L of the heat exchanger in a plan view, wherein a left suction port 11 of the fan assembly is located at a left side of the center line L and at the same side as the left end portion of the heat exchanger 40, and a right suction port 12 is located at a right side of the center line L and at the same side as the right end portion of the heat exchanger 40. In one example, the rotational centerline O of the fan 20 is perpendicular to the centerline L of the top view of the heat exchanger 40.
According to the air conditioner indoor unit with the double-suction fan assembly, the heating parts are designed on the double-suction air duct path, and the two heating parts are designed left and right, so that the two heating parts fully play roles due to the action of the double-suction fan, and the electric heating efficiency is improved. On the path of the double-suction air duct of the heating element design, the problem of the assembly space of the heating element is solved, the front and back size of the whole machine is not increased, and the cost of the whole machine is reduced.
It is further understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.
Claims (8)
1. A fan assembly, comprising:
The spiral case is provided with a left air suction port, a right air suction port and an air outlet communicated with the left air suction port and the right air suction port, and the left air suction port and the right air suction port are respectively positioned at the left side and the right side of the fan;
the heating piece is arranged on the outer wall of the volute, and the heating piece is prevented from avoiding the left air suction port and the right air suction port, wherein when the fan rotates, at least part of external air flow can flow through the heating piece and is heated, and then is sucked into the volute from the left air suction port and the right air suction port and is discharged from the air outlet;
The air outlet comprises an upper air outlet and a lower air outlet, and the upper air outlet and the lower air outlet are respectively positioned above and below the fan;
the heating piece is positioned between the left air suction port and the lower air exhaust port; and/or the heating element is positioned between the right air suction opening and the lower air exhaust opening;
The volute comprises an upper exhaust cavity, a fan cavity and a lower exhaust cavity which are communicated, the fan is arranged in the fan cavity, the left air suction port and the right air suction port are respectively formed at the left side and the right side of the fan cavity, the upper exhaust port is formed in the upper exhaust cavity, and the lower exhaust port is formed in the lower exhaust cavity;
The junction of the outer wall of the fan cavity and the outer wall of the lower exhaust cavity forms a concave space which is concave inwards,
The heating element is disposed in the recess space.
2. The fan assembly of claim 1 wherein the fan assembly comprises a fan assembly,
The volute comprises a volute body and a volute cover, and the volute body and the volute cover are buckled to form an upper exhaust cavity, a fan cavity and a lower exhaust cavity.
3. A fan assembly as claimed in claim 1 or 2, wherein,
One end of the heating piece is fixed on the outer wall of the fan cavity, and the other end of the heating piece is fixed on the outer wall of the lower exhaust cavity.
4. A fan assembly as claimed in claim 1 or 2, wherein,
The heating element comprises a first heating element and a second heating element, wherein the first heating element and the second heating element are arranged left and right.
5. A fan assembly as claimed in claim 1 or 2, wherein,
The left side part and/or the right side part of the heating piece are arc-shaped and are used for guiding at least part of external airflow to the left air suction opening and/or the right air suction opening.
6. An air conditioning indoor unit, comprising:
the fan assembly of any of claims 1-5.
7. The indoor unit of claim 6, further comprising:
The heat exchanger corresponds to the position of the fan assembly;
the left air suction inlet and the right air suction inlet are respectively positioned at the left side and the right side of the overlooking central line of the heat exchanger.
8. The indoor unit of claim 7, further comprising:
the shell is provided with a rear air inlet, an upper air outlet and a lower air outlet;
the heat exchanger and the rear air inlet are oppositely arranged between the shell and the volute;
And external air flow is sucked by the rear air inlet under the action of the rotation centrifugal force of the fan, exchanges heat through the heat exchanger and then enters the left air suction inlet and the right air suction inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211651833.5A CN116007058B (en) | 2022-12-21 | 2022-12-21 | Fan subassembly and air conditioning indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211651833.5A CN116007058B (en) | 2022-12-21 | 2022-12-21 | Fan subassembly and air conditioning indoor unit |
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| Publication Number | Publication Date |
|---|---|
| CN116007058A CN116007058A (en) | 2023-04-25 |
| CN116007058B true CN116007058B (en) | 2024-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211651833.5A Active CN116007058B (en) | 2022-12-21 | 2022-12-21 | Fan subassembly and air conditioning indoor unit |
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| CN116007058A (en) | 2023-04-25 |
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