Air outlet structure and fan

Abstract

The present invention discloses an air outlet structure and a fan, the air outlet structure comprises: a mounting shell, the mounting shell is provided with a mounting cavity for installing a fan and a first air outlet hole and an air inlet hole connected with the mounting cavity; a heating element, the heating element is retractable, the heating element is provided with a second air outlet hole and the heating element can move relative to the mounting shell; and a driving mechanism, the driving mechanism is used to drive the heating element to move so that the heating element has a retracted state or an expanded state, when the heating element is in the expanded state, the heating element closes the first air outlet hole, and the second air outlet hole is connected with the mounting cavity, when the heating element is in the retracted state, the heating element opens the first air outlet hole. The air outlet structure can realize the removal of the heating element in the cold wind state, thereby avoiding the influence of the heating element on the air outlet volume and air outlet speed. The fan comprises the above-mentioned air outlet structure, therefore, when the fan is in the cold wind state, the air outlet volume is large and the air outlet speed is fast.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to an air outlet structure and a fan. Background Art

[0002] Tower fan is a kind of fan. Tower fan forms a three-dimensional exchange system between indoor and outdoor air based on the principle of airflow. Tower fan usually "throws out" wind through a cross-flow fan to form an airflow, that is, the wind pressure caused by the rotation of the wind wheel generates centrifugal wind force and finally transmits the wind force out through the internal wind guide wall. Compared with traditional fans, tower fans have softer wind output and can better promote air circulation in the room. In order to make tower fans able to be used in both winter and summer, heating and cooling fans have appeared on the market. When the heating and cooling fan is needed to emit hot air, the wind can be heated by the heating element; when the heating and cooling fan is needed to emit cold air, it is only necessary to stop heating the heating element.

[0003] However, traditional hot and cold fans have problems with low air volume and slow air speed in cold air state, resulting in poor user experience. Summary of the invention

[0004] Based on this, in order to address the problems that traditional hot and cold fans have low air volume and slow air speed in the cold air state, resulting in poor user experience, an air outlet structure and a fan are proposed. The air outlet structure can remove the heat generating components in the cold air state, thereby avoiding the influence of the heat generating components on the air volume and air speed. The fan includes the above-mentioned air outlet structure. Therefore, when the fan is in the cold air state, the air volume is large and the air speed is fast.

[0005] The specific technical solutions are as follows:

[0006] On the one hand, the present application relates to an air outlet structure, comprising: an installation shell, the installation shell is provided with an installation cavity for installing a fan and a first air outlet hole and an air inlet hole both connected to the installation cavity; a heat generating element, the heat generating element is retractable, and the heat generating element is provided with a second air outlet hole; and a driving mechanism, the driving mechanism is used to drive one end of the heat generating element to move so that the heat generating element has a retracted state or an expanded state, when the heat generating element is in the expanded state, the heat generating element closes the first air outlet hole, and the second air outlet hole is connected to the installation cavity, and when the heat generating element is in the retracted state, the heat generating element opens the first air outlet hole.

[0007] When the above-mentioned air outlet structure is in use, the fan sucks air into the installation cavity through the air inlet hole and discharges the air along the first air outlet hole or the second air outlet hole according to the working state of the heating element; when the heating element is in the expanded state, the air in the installation cavity is discharged along the second air outlet hole. At this time, when the heating element is heated, the wind discharged along the second air outlet hole is hot air; when the heating element is in the contracted state, the air in the installation cavity is discharged along the first air outlet hole. At this time, when the heating element stops heating, the wind discharged along the first air outlet hole is cold air or normal temperature wind; further, traditional heating and cooling fans generally place a heating element (such as a PTC thermistor) directly in front of the air inlet or outlet grille, which will affect the air volume and air speed when the fan is set to the cold air mode. In the present application, when the fan is used to blow cold air, the heating element can be driven to be in a contracted state and the first air outlet hole can be removed through the mechanism, so that the heating element will not reduce the air volume and air speed, thereby improving the air volume and air speed relative to traditional fans.

[0008] The technical solution is further described below:

[0009] In one embodiment, the heat generating element can be wound and shrunk, and the heat generating element includes a winding starting end and a winding ending end, the winding starting end is connected to the mounting shell, and the winding ending end is connected to the driving mechanism, and the driving mechanism drives the winding ending end to move to expand or shrink the heat generating element.

[0010] In one embodiment, the driving mechanism includes a mobile power output component and a winding driving component, the winding starting end is connected to the winding driving component, the winding ending end is connected to the power output end of the mobile power output component, and the driving mechanism includes a first working state and a second working state;

[0011] When the driving mechanism is in a first working state, the mobile power output assembly drives the winding termination end to move so that the heating element is unfolded; when the driving mechanism is in a second working state, the winding driving assembly drives the heating element to wind and shrink.

[0012] In one embodiment, the winding drive assembly includes a coil spring and a rotating shaft, the rotating shaft is rotatably connected to the mounting shell, one end of the coil spring is connected to the rotating shaft and is wound around the rotating shaft with the rotating shaft as the winding axis, the other end of the coil spring is connected to the winding starting end, and the winding ending end is connected to the power output end of the mobile power output assembly, the coil spring is used to drive the heating element to wind around the rotating shaft, and the mobile power output assembly drives the winding ending end to move to expand or contract the heating element.

[0013] In one embodiment, the installation shell is located on the inner wall of the installation cavity and is provided with a first receiving groove for accommodating the mobile power output component; and / or the installation shell is located on the inner wall of the installation cavity and is provided with a second receiving groove for accommodating the rotating shaft.

[0014] In one embodiment, the mobile power output assembly includes a rotating power output member and a pull rope, one end of the pull rope is connected to the output end of the rotating power output member, and the other end is connected to the other end of the heating element. The rotating power output member drives the pull rope to be wound around the output end of the rotating power output member so that the pull rope drives the heating element to move.

[0015] In one embodiment, the driving mechanism is a mobile power output mechanism, the heating element is foldable and shrinkable, one end of the heating element is connected to the mounting shell, and the other end of the heating element is connected to the power output end of the driving mechanism.

[0016] In one embodiment, the air outlet structure also includes a accommodating member, which is arranged in the installation cavity. The accommodating member has an accommodating cavity, one end of the heating element is connected to the inner wall of the accommodating cavity, and the other end of the heating element is connected to the power output end of the driving mechanism.

[0017] In one of the embodiments, the air outlet structure also includes a heating device for heating the heating element. When the heating element is in an expanded state, the heating device heats the heating element. When the heating element is in a contracted state, the heating device stops heating the heating element.

[0018] On the other hand, the present application also relates to a fan, comprising the air outlet structure in any of the above embodiments, and further comprising a fan, wherein the fan is arranged in the installation cavity.

[0019] When the above-mentioned fan is in use, the fan sucks air into the installation cavity through the air inlet hole and discharges the air along the first air outlet hole or the second air outlet hole according to the working state of the heating element; when the heating element is in the expanded state, the air in the installation cavity is discharged along the second air outlet hole. At this time, when the heating element is heated, the wind discharged along the second air outlet hole is hot air; when the heating element is in the contracted state, the air in the installation cavity is discharged along the first air outlet hole. At this time, when the heating element stops heating, the wind discharged along the first air outlet hole is cold air or normal temperature wind; further, traditional heating and cooling fans generally place a heating element (such as a PTC thermistor) directly in front of the air inlet or outlet grille, which will affect the air volume and air speed when the fan is set to the cold air mode. In the present application, when the fan is used to blow cold air, the heating element can be driven to be in a contracted state and the first air outlet hole can be removed through a mechanism, so that the heating element will not reduce the air volume and air speed, thereby improving the air volume and air speed relative to traditional fans. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the fan with part of the installation casing removed;

[0021] Figure 2 It is a schematic diagram of the assembly of the heating element and the driving mechanism;

[0022] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0023] Figure 4 A partial cross-sectional view of the installation housing.

[0024] Description of reference numerals:

[0025] 100, mounting shell; 110, mounting cavity; 120, air inlet hole; 130, first air outlet hole; 140, first accommodating slot; 150, second accommodating slot; 200, heating element; 210, second air outlet hole; 310, mobile power output assembly; 312, second motor; 3122, output shaft of second motor; 314, pull rope; 320, winding drive assembly; 322, rotating shaft; 324, first motor; 400, fan. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] It is necessary to point out that when an element is referred to as being “fixed on” another element, the two elements may be integral or detachably connected.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In addition, it should be understood that in this embodiment, the positional relationships indicated by the terms "lower", "upper", "front", "back", "left", "right", "inner", "outer", "top", "bottom", "one side", "the other side", "one end", "the other end", etc. are based on the positional relationships shown in the drawings; the terms "first", "second", etc. are used to distinguish different structural components. These terms are only used to facilitate the description of the present invention and simplify the description, and should not be understood as limiting the present invention.

[0031] like Figures 1 to 4 As shown, a fan in one embodiment includes an air outlet structure and a fan 400, the air outlet structure includes an installation shell 100, a heating element 200 and a driving mechanism, the installation shell 100 is provided with an installation cavity 110 for installing the fan 400 and a first air outlet hole 130 and an air inlet hole 120 which are both connected to the installation cavity 110; the heating element 200 is retractable, the heating element 200 is provided with a second air outlet hole 210 and one end of the heating element 200 can move relative to the installation shell 100; the driving mechanism is used to drive one end of the heating element 200 to move so that the heating element 200 has a retracted state or an expanded state, when the heating element 200 is in the expanded state, the heating element 200 closes the first air outlet hole 130, and the second air outlet hole 210 is connected to the installation cavity 110, when the heating element 200 is in the retracted state, the heating element 200 opens the first air outlet hole 130, and the fan 400 is arranged in the installation cavity 110.

[0032] When the fan is in use, the fan 400 draws air into the installation cavity 110 through the air inlet hole 120 and discharges the air along the first air outlet hole 130 or along the second air outlet hole 210 according to the working state of the heating element 200; when the heating element 200 is in the expanded state, the air in the installation cavity 110 is discharged along the second air outlet hole 210. At this time, when the heating element 200 is heated, the air discharged along the second air outlet hole 210 is hot air; when the heating element 200 is in the contracted state, the air in the installation cavity 110 is discharged along the first air outlet hole 130. At this time, when the heating element 200 is in the When the heating stops, the wind discharged along the first air outlet hole 130 is cold air or air at normal temperature; further, traditional heating and cooling fans generally place a heating element (such as a PTC thermistor) directly in front of the air inlet or outlet grille, which will affect the air volume and air speed when the fan is set to cold air mode. In the present application, when the fan is used to blow cold air, the heating element 200 can be driven into a contracted state and the first air outlet hole 130 can be removed through a mechanism, so that the heating element 200 will not reduce the air volume and air speed, thereby improving the air volume and air speed relative to traditional fans.

[0033] The heat-generating element 200 may have a variety of retractable structures. For example, in this embodiment, the heat-generating element 200 may be wound and retracted. The heat-generating element 200 includes a winding starting end and a winding ending end. The winding starting end is connected to the mounting shell 100, and the winding ending end is connected to the driving mechanism. The driving mechanism drives the winding ending end to move so that the heat-generating element 200 is expanded or contracted. At this time, the heat-generating element 200 may be a memory material, such as a coil spring in a wound state. When the heat-generating element 200 is in a natural state, the heat-generating element 200 is in a wound state. Under the drive of the driving mechanism, the winding ending end of the heat-generating element 200 moves in the direction of expanding the heat-generating element 200 and expands the heat-generating element 200, thereby realizing closing. The first air outlet hole 130; when the first air outlet hole 130 needs to be opened, the heating element 200 is driven by the driving mechanism, and the winding end end moves in the direction of contracting the heating element 200 to contract the heating element 200; of course, the heating element 200 can also be a deformable material that can be bent and wound on the corresponding winding axis, and the heating element 200 is driven by the driving mechanism, and the winding end end moves in the direction of unfolding the heating element 200 and unfolds the heating element 200, thereby closing the first air outlet hole 130; when the first air outlet hole 130 needs to be opened, the heating element 200 is driven by the driving mechanism, and the winding end end moves in the direction of contracting the heating element 200 to contract the heating element 200. Among them, the winding starting end is connected to the installation shell 100, and the winding starting end can be directly connected to the installation shell 100 or connected to the installation shell 100 through an intermediate connecting member.

[0034] Specifically in this embodiment, the driving mechanism includes a mobile power output component 310 and a winding driving component 320, the winding starting end is connected to the winding driving component 320, and the winding terminating end is connected to the power output end of the mobile power output component 310, and the driving mechanism includes a first working state and a second working state; when the driving mechanism is in the first working state, the mobile power output component 310 drives the winding terminating end to move to unfold the heating element 200, at which time the heating element 200 unfolds and closes the first air outlet hole 130, and the air in the installation cavity 110 is discharged along the second air outlet hole 210, and at this time, when the heating element 200 is heated, the air is discharged along the second air outlet hole 210. 0, the wind discharged is hot wind; when the driving mechanism is in the second working state, the winding driving component 320 drives the heating element 200 to wind and shrink. At this time, the heating element 200 opens the first air outlet hole 130, and the air in the installation cavity 110 is discharged along the first air outlet hole 130. At this time, when the heating element 200 stops heating, the wind discharged along the first air outlet hole 130 is cold wind or wind at room temperature. When the driving mechanism is in the second working state, the winding driving component 320 drives the heating element 200 to wind and shrink. At this time, the mobile power output component 310 can loosen the heating element 200 or drive the heating element 200 to move in the shrinking direction.

[0035] like Figure 2 and Figure 3 As shown, there are many ways for the winding drive component 320 to drive the heating element 200 to wind and shrink. Specifically in this embodiment, the winding drive component 320 includes a coil spring and a rotating shaft 322. The rotating shaft 322 is rotatably connected to the mounting housing 100. One end of the coil spring is connected to the rotating shaft 322 and is wound around the rotating shaft 322 as the winding shaft. The other end of the coil spring is connected to the winding starting end, and the winding ending end is connected to the power output end of the mobile power output component 310. The coil spring is used to drive the heating element 200 to wind around the rotating shaft 322. The mobile power output component 310 drives the winding end end to move so that the heating element 200 is expanded or contracted. At this time, when the mobile power output component 310 drives the winding end end to move in the direction of the heating element 200 to expand, the heating element 200 is expanded, and the heating element 200 drives the coil spring to expand, thereby closing the first air outlet hole 130; when the mobile power output component 310 drives the winding end end to move in the direction of the heating element 200 to contract, the coil spring itself restores its deformation and drives the heating element 200 to wind and contract, thereby opening the first air outlet hole 130. In this embodiment, the rotation of the rotating shaft 322 can be driven by the first motor 324.

[0036] like Figure 2 and Figure 3As shown, similarly, there are multiple ways for the mobile power output component 310 to drive the winding termination end to move. Specifically in this embodiment, the mobile power output component 310 includes a rotating power output member and a pull rope 314. One end of the pull rope 314 is connected to the output end of the rotating power output member, and the other end is connected to the other end of the heating element 200. The rotating power output member drives the pull rope 314 to be wound around the output end of the rotating power output member so that the pull rope 314 drives the heating element 200 to move. In this way, when it is necessary to drive the heating element 200 to unfold, the rotating power output member can rotate in the first direction (which can be forward rotation) to drive the pull rope 314 to be wound. At the output end of the rotating power output element, the heating element 200 is unfolded under the pulling of the stretching; when the heating element 200 needs to be driven to shrink, the rotating power output element can rotate (reverse) in the second direction. At this time, if the heating element 200 is a memory material, it shrinks under the restoring force of the rotating power output element and the heating element 200 to restore its own deformation, and then the heating element 200 realizes winding and shrinking, or the heating element 200 is wound on the rotating shaft 322 by the coil spring. When the rotating power output element can rotate (reverse) in the second direction, the winding and shrinking of the heating element 200 are realized under the cooperation of the coil spring and the rotating power output element. Specifically, the rotating power output element can be the second motor 312, and the output end of the rotating power output element is the output shaft 3122 of the second motor. Specifically, on the basis of this embodiment, it also includes a controller, through which the second motor 312 and the first motor 324 are selectively operated. When the second motor 312 rotates forward, it drives the pull rope 314 to be wound around the output shaft 3122 of the second motor. At this time, the first motor 324 reverses, so that the pull rope 314 drives the heating element 200 to unfold. When the second motor 312 reverses, the pull rope 314 is released. At this time, the first motor 324 rotates forward, driving the heating element 200 to be wound around the rotating shaft 322. At this time, the heating element 200 contracts. The controller can be a single-chip microcomputer or a micro control unit.

[0037] like Figure 1 As shown, further, in order to prevent the mobile power output assembly 310 and the rotating shaft 322 from being interfered with by other parts during operation, in this embodiment, the installation shell 100 is located on the inner wall of the installation cavity 110 and is provided with a first receiving groove 140 for accommodating the mobile power output assembly 310; and / or the installation shell 100 is located on the inner wall of the installation cavity 110 and is provided with a second receiving groove 150 for accommodating the rotating shaft 322. Furthermore, the first receiving groove 140 can also provide a winding space for the pull rope 314, and the second receiving groove 150 can also provide a winding space for the heating element 200.

[0038] Of course, in other embodiments, the heating element 200 can be folded and contracted (similar to a folding door structure), the driving mechanism is a mobile power output mechanism, one end of the heating element 200 is connected to the mounting shell 100, and the other end of the heating element 200 is connected to the power output end of the driving mechanism. At this time, the first air outlet hole 130 is opened and closed by driving the heating element 200 to fold, contract or unfold by the mobile power output mechanism. On the basis of this embodiment, the air outlet structure also includes a receiving member, which is arranged in the mounting cavity 110, and the receiving member is provided with a receiving cavity. One end of the heating element 200 is connected to the inner wall of the receiving cavity, and the other end of the heating element 200 is connected to the power output end of the driving mechanism. In this way, when the heating element 200 is in a contracted state, the heating element 200 is stored by providing a receiving member to prevent the heating element 200 from being damaged by the outside world.

[0039] On the basis of any of the above embodiments, the air outlet structure also includes a heating device for heating the heating element 200. When the heating element 200 is in the expanded state, the heating device heats the heating element 200. At this time, after the air in the installation cavity 110 exchanges heat with the heating element 200 and heats up, the wind discharged along the second air outlet hole 210 is hot air; when the heating element 200 is in the contracted state, the heating device stops heating the heating element 200. At this time, the wind discharged along the first air outlet hole is cold air or air at normal temperature; specifically, the heating device can be a power supply, and the heating element 200 can be a heating sheet or a heating plate with a thermocouple wire, or a heating sheet or a heating plate with a thermistor.

[0040] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An air outlet structure, characterized in that: include: An installation shell, wherein the installation shell is provided with an installation cavity for installing a fan and a first air outlet hole and an air inlet hole both communicated with the installation cavity; A heating element, the heating element is retractable, the heating element is provided with a second air outlet hole and one end of the heating element is movable relative to the mounting housing, the heating element is a heating sheet or a heating plate with a galvanic wire, or the heating element is a heating sheet or a heating plate with a thermistor; and A driving mechanism, wherein the driving mechanism is used to drive one end of the heating element to move so that the heating element has a contracted state or an expanded state. When the heating element is in the expanded state, the heating element closes the first air outlet hole, and the second air outlet hole is connected to the mounting cavity. When the heating element is in the contracted state, the heating element opens the first air outlet hole. The heating element can be wound and shrunk, and the heating element includes a winding start end and a winding end end, the winding start end is connected to the mounting shell, and the winding end end is connected to the driving mechanism, and the driving mechanism drives the winding end end to move so that the heating element is expanded or shrunk; or The driving mechanism is a mobile power output mechanism, the heating element is foldable and shrinkable, one end of the heating element is connected to the mounting shell, and the other end of the heating element is connected to the power output end of the driving mechanism.

2. The air outlet structure according to claim 1, characterized in that: The driving mechanism includes a mobile power output component and a winding driving component, the winding starting end is connected to the winding driving component, the winding ending end is connected to the power output end of the mobile power output component, and the driving mechanism includes a first working state and a second working state; When the driving mechanism is in a first working state, the mobile power output assembly drives the winding termination end to move so that the heating element is unfolded; when the driving mechanism is in a second working state, the winding driving assembly drives the heating element to wind and shrink.

3. The air outlet structure according to claim 2, characterized in that: The winding drive assembly includes a coil spring and a rotating shaft, the rotating shaft is rotatably connected to the mounting shell, one end of the coil spring is connected to the rotating shaft and is wound around the rotating shaft with the rotating shaft as the winding axis, the other end of the coil spring is connected to the winding starting end, and the winding ending end is connected to the power output end of the mobile power output assembly, the coil spring is used to drive the heating element to be wound around the rotating shaft, and the mobile power output assembly drives the winding ending end to move to expand or contract the heating element.

4. The air outlet structure according to claim 3, characterized in that: The installation shell is provided with a first receiving groove for receiving the mobile power output assembly on the inner wall of the installation cavity; and / or the installation shell is provided with a second receiving groove for receiving the rotating shaft on the inner wall of the installation cavity.

5. The air outlet structure according to claim 2, characterized in that: The mobile power output assembly includes a rotating power output member and a pull rope, one end of the pull rope is connected to the output end of the rotating power output member, and the other end is connected to the other end of the heating element. The rotating power output member drives the pull rope to be wound around the output end of the rotating power output member so that the pull rope drives the heating element to move.

6. The air outlet structure according to claim 1, characterized in that: It also includes a accommodating member, which is arranged in the installation cavity. The accommodating member has an accommodating cavity, one end of the heating element is connected to the inner wall of the accommodating cavity, and the other end of the heating element is connected to the power output end of the driving mechanism.

7. The air outlet structure according to any one of claims 1 to 6, characterized in that: It also includes a heating device for heating the heating element. When the heating element is in an expanded state, the heating device heats the heating element. When the heating element is in a contracted state, the heating device stops heating the heating element.

8. A fan, characterized in that: It comprises the air outlet structure according to any one of claims 1 to 7, and further comprises a fan, wherein the fan is arranged in the installation cavity.

Images