Internal circulation quilt warming device capable of adjusting air inlet amount

Abstract

According to the internal circulation quilt warming device capable of adjusting the air inlet amount, an air inlet cavity is provided with a draught fan and provided with an air inlet exposed out of a shell, the air inlet is provided with an air inlet piece, and the air inlet piece is provided with a first air inlet part and a second air inlet part; the air adjusting piece covers the air inlet piece, is provided with a plurality of groups of first air blocking parts and second air blocking parts, and can rotate relative to the air inlet piece, so that the first air blocking parts intercept the air inlet amount of the first air inlet parts, and the second air blocking parts intercept the air inlet amount of the second air inlet parts; the air outlet duct is provided with a heating assembly and is provided with an air outlet; the air inlet is communicated with the air outlet of the air outlet duct through the air inlet cavity; when the quilt warming operation is executed, the whole machine can be placed in a quilt. According to the device, the air inlet amount is adjusted through rotation dislocation between the air inlet piece and the air adjusting piece, the situation that the draught fan is damaged due to adsorption of a quilt or cotton fiber is avoided, the whole device can be placed in a quilt, hot air in the quilt is extracted to be heated and then fed into the quilt, the temperature in the quilt is increased faster, and the quilt heating effect is better.

Description

Technical Field

[0001] The invention belongs to the technical field of quilt warmers, and in particular relates to an internal circulation quilt warmer capable of adjusting air intake volume. Background Art

[0002] A quilt warmer is a small appliance that can be used in cold or humid weather to warm the quilt, dehumidify and remove mites. It heats the quilt by passing the outside air through a heating element and then blowing it into the quilt, and then the heated air heats the quilt, thus quickly raising the temperature of the quilt.

[0003] Currently, existing quilt warmers generally adjust the air intake by adjusting the speed and power of the fan, and cannot physically adjust the air intake by changing the structure of the air inlet. In addition, for quilt warmers that can be placed in the quilt, the air inlet is inside the quilt, and the air inlet is easy to suck in the cotton wool in the quilt or the quilt will be adsorbed on the air inlet, causing the air inlet to be blocked. Therefore, how to prevent the air inlet from sucking in cotton wool or adsorbing the quilt while adjusting the air intake of the air inlet is a problem that needs to be solved at present. Summary of the invention

[0004] In response to the problems raised by the background technology, the present invention proposes an internal circulation quilt heating device with adjustable air intake volume. The device is equipped with an air inlet piece and an air regulating piece at the air inlet, and the air intake volume is adjusted by utilizing the rotational misalignment between the air inlet piece and the air regulating piece. The whole machine can be placed in the quilt, and the hot air in the quilt is extracted, circulated and heated, and then sent back into the quilt. The heating efficiency is higher, the temperature inside the quilt increases faster, and it is more energy-saving. The air outlet is designed as an integral whole with the main unit, and the whole machine can be placed in the quilt, which can better control the air outlet, increase the heating area in the quilt, and maximize the quilt warming effect.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An internal circulation quilt warming device with adjustable air intake volume, comprising a shell provided with an air intake cavity and an air outlet duct;

[0007] The air inlet cavity is equipped with a fan and is provided with an air inlet exposed outside the shell, the air inlet is provided with an air inlet member, and the air inlet member is provided with a first air inlet portion and a second air inlet portion;

[0008] An air regulating member covers the air inlet member, the air regulating member is provided with a plurality of first air shielding parts and a second air shielding part, the air regulating member can rotate relative to the air inlet member so that the first air shielding part intercepts the air inlet of the first air inlet part and the second air shielding part intercepts the air inlet of the second air inlet part; the air outlet duct is installed with a heating component and is provided with an air outlet;

[0009] The air inlet is connected to the air outlet of the air outlet duct through the air inlet cavity;

[0010] When performing the quilt warming operation, the whole machine can be placed in the quilt, so that the fan draws the hot air in the quilt from the air inlet to the air outlet duct, and then the hot air is heated by the heating component and then sent back into the quilt from the air outlet.

[0011] Preferably, the air inlet member includes a supporting ring plate and a plurality of groups of air inlet ribs, one end of each group of air inlet ribs is fixed to the air inlet, and the other end extends upward and is connected to the outer ring edge of the supporting ring plate, so that the air inlet member protrudes upward relative to the air inlet;

[0012] The plurality of groups of air inlet ribs are distributed at intervals to form air inlet gaps between any two of the air inlet ribs, and the plurality of air inlet gaps constitute the first air inlet portion.

[0013] Preferably, the air inlet member further comprises a plurality of groups of mesh branches, the plurality of groups of mesh branches are staggeredly distributed to form a mesh surface having a plurality of groups of air inlet mesh holes, the mesh surface is arranged on the inner ring edge of the support ring plate to constitute the second air inlet portion.

[0014] Preferably, the air regulating member further comprises a lower ring plate and an upper ring plate, one end of each group of first wind shielding portions is fixed to the lower ring plate, and the other end extends upward and is connected to the outer ring edge of the upper ring plate, so that the air regulating member protrudes upward so that the air regulating member can be detachably covered on the air inlet member;

[0015] The plurality of groups of the first wind shielding portions are distributed at intervals so as to form air inlet gaps between any two of the first wind shielding portions;

[0016] By rotating the air regulating member, the first air shield and the air inlet ribs, and the air inlet gaps and the air inlet gaps can be overlapped, or the first air shield can be located between the air inlet gaps, and the air inlet ribs can be located between the air inlet gaps, so as to adjust the air intake of the first air inlet.

[0017] Preferably, the plurality of groups of second wind shielding portions are staggeredly distributed to form a mesh structure having a plurality of groups of holes, and the mesh structure is arranged on the inner ring edge of the upper ring plate;

[0018] By rotating the air regulating member, the second air shield and the mesh support bars, the holes and the air inlet mesh holes can be overlapped, or the second air shield can block the air inlet mesh holes, and the mesh support bars can block the holes, so as to adjust the air intake of the second air inlet.

[0019] Preferably, a concave cavity is provided on the outside of the housing corresponding to the installation position of the air inlet, and the horizontal plane where the air regulating member is located is lower than the horizontal plane of the cavity opening of the concave cavity;

[0020] The cavity wall of the concave cavity is provided with a notch;

[0021] Air can flow into the air inlet through the notch and / or the opening of the concave cavity.

[0022] Preferably, temperature sensors are provided at the top and bottom of the air outlet duct, and a temperature fuse is configured at the top of the air outlet cavity, and the temperature fuse is electrically connected to the heating component.

[0023] Preferably, it further comprises an electric control board installation cavity, an electric control board is installed on the cavity wall of the electric control board installation cavity, the electric control board is electrically connected with a button, and the button is exposed on the side wall of the housing;

[0024] The cavity wall of the concave cavity is provided with a wire outlet hole, and the electric control board installation cavity is connected to the concave cavity through the wire outlet hole.

[0025] Preferably, a power supply installation cavity for installing a power supply is provided between the air outlet duct and the electric control board installation cavity;

[0026] A wiring groove is formed on the side wall of the power supply installation cavity, and the power supply installation cavity is connected to the electric control board installation cavity through the wiring groove.

[0027] Preferably, the upper ring plate is provided with a toggle portion, and the toggle portion extends outward toward the outer ring edge of the upper ring plate.

[0028] Preferably, the air outlet is installed with an air outlet grille, and an isolation net is installed between the air outlet grille and the air outlet duct.

[0029] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0030] 1. When the device is performing the quilt warming operation, the whole machine can be placed in the quilt, and the hot air in the quilt is extracted and circulated and heated before being sent back into the quilt. The heating efficiency is higher, the temperature inside the quilt is raised faster, and it is more energy-saving. The air outlet and the main unit are designed as one. The whole machine can be placed in the quilt, which can better control the air outlet, increase the heating area in the quilt, and maximize the quilt warming effect;

[0031] 2. The device is equipped with an air inlet and an air regulating member at the air inlet, and the air inlet volume is adjusted by utilizing the rotational misalignment between the air inlet and the air regulating member;

[0032] 3. This device uses the filter structure composed of the air inlet and air regulating parts to prevent quilts, cotton wool and other debris from being sucked into the air inlet cavity during ventilation, thus avoiding the problem of damage to the fan;

[0033] 4. The shell of the device is provided with a concave cavity, which utilizes the height difference between the cavity mouth and the air inlet, and opens a gap on the side of the concave cavity to effectively prevent the quilt from being adsorbed on the air inlet when warming the quilt, blocking the air inlet and causing the fan to idle. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the whole housing of the present invention;

[0035] Figure 2 The present invention Figure 1 An enlarged schematic diagram of the middle air inlet;

[0036] Figure 3 is a schematic structural diagram of an air regulating member according to an embodiment of the present invention;

[0037] Figure 4 is an internal schematic diagram of an internal circulation quilt warmer according to an embodiment of the present invention;

[0038] Figure 5 This is an internal structural diagram of an internal circulation quilt warmer according to an embodiment of the present invention;

[0039] Figure 6 It is a schematic diagram of a top view of a first wind shield and wind inlet ribs, wind inlet gaps and wind inlet gaps, mesh support bars and a second wind shield overlapping in one embodiment of the present invention;

[0040] Figure 7 It is a schematic diagram of a state in which a first wind shield and wind inlet ribs, wind inlet gaps and wind inlet gaps, mesh support bars and a second wind shield overlap in one embodiment of the present invention;

[0041] Figure 8 It is a schematic diagram of a top view of a state in which the first wind shield and the wind inlet ribs, the wind inlet gaps and the wind inlet clearances, the mesh support bars and the second wind shield do not overlap in one embodiment of the present invention;

[0042] Fig. 9 It is a schematic diagram of a state in which the first wind shield and the wind inlet ribs, the wind inlet gaps and the wind inlet clearances, the mesh support bars and the second wind shield do not overlap in one embodiment of the present invention.

[0043] Shell 1, concave cavity 11, notch 111, air inlet cavity 2, air inlet 21, fan 22, air inlet member 23, support ring plate 231, air inlet ribs 232, air inlet gap 233, mesh support bar 234, air inlet mesh 235, air regulating member 3, upper ring plate 31, lower ring plate 32, first wind shielding part 33, air inlet gap 34, second wind shielding part 35, eyelet 36, toggle part 37, air outlet duct 4, heating component 41, air outlet 42, temperature fuse 5, electric control board installation cavity 6, electric control board 61, power supply installation cavity 7, wiring groove 71, outlet hole 72, air outlet grid plate 8, isolation net 9. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or ends.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] An internal circulation quilt warming device with adjustable air intake, such as Figure 1 , Figure 4 and Figure 5 As shown, it includes a housing 1 configured with an air inlet cavity 2 and an air outlet duct 4;

[0049] like Figure 2 As shown, the air inlet cavity 2 is installed with a fan 22 and is provided with an air inlet 21 exposed outside the housing 1, the air inlet 21 is provided with an air inlet member 23, and the air inlet member 23 is provided with a first air inlet portion and a second air inlet portion;

[0050] like Figure 3 As shown, an air regulating member 3 covers the air inlet member 23, and the air regulating member 3 is provided with a plurality of first air shields 33 and second air shields 35. The air regulating member 3 can rotate relative to the air inlet member 23 so that the first air shield 33 intercepts the air inlet of the first air inlet and the second air shield 35 intercepts the air inlet of the second air inlet; the air outlet duct 4 is installed with a heating component 41 and is provided with an air outlet 42;

[0051] The air inlet 21 is connected to the air outlet 42 of the air outlet duct 4 through the air inlet cavity 2;

[0052] When performing the quilt warming operation, the whole machine can be placed in the quilt so that the fan 22 draws the hot air in the quilt from the air inlet 21 to the air outlet duct 4, and then the hot air is heated by the heating component 41 and then sent back into the quilt from the air outlet 42.

[0053] In this embodiment, the device includes an external shell 1, which is composed of an upper shell part and a lower shell part that are buckled together to form an inner cavity inside the shell 1, and the inner cavity is used to install an air inlet cavity 2 and an air outlet duct 4.

[0054] A fan 22 is provided inside the air inlet cavity 2, and the air inlet cavity 2 is also equipped with an air inlet 21. The working principle of the present device is as follows: after the fan 22 is started, air is drawn from the air inlet 21 into the air inlet cavity 2. Since the air inlet cavity 2 is connected to the air outlet duct 4, the air drawn into the air inlet cavity 2 will be sent into the air outlet duct 4, and after being heated by the heating component 41, hot air is formed and sent out from the air outlet 42.

[0055] Furthermore, the device is equipped with an air inlet piece 23 and an air regulating piece 3 at the air inlet 21 for adjusting the amount of air drawn into the air inlet cavity 2 from the air inlet 21 by the fan 22; specifically, the air inlet piece 23 is provided with two air inlet positions, including a first air inlet portion and a second air inlet portion. In the present embodiment, the first air inlet portion can be understood as the side air inlet position of the air inlet piece 23, and the second air inlet portion can be understood as the top air inlet position of the air inlet piece 23. The specific structural analysis can be found below; the air regulating piece 3 covers the air inlet piece 23, and is equipped with multiple groups of first wind shields 33 and second wind shields 35. Rotating the air regulating piece 3 can make the first wind shield 33 intercept the air intake of the first air inlet, and make the second wind shield 35 intercept the air intake of the second air inlet. How to intercept will be specifically analyzed below. It should be noted that the first wind shield 33 and the second wind shield 35 cannot completely block the air intake of the first air inlet and the second air inlet to avoid the fan 22 idling and the air inlet cavity 2 having no air entering.

[0056] Furthermore, when the device is performing the quilt warming operation, the whole device will be placed inside the quilt, so that the air inlet 21 and the air outlet 42 are both inside the quilt. When it is started, the fan 22 draws the air in the quilt from the air inlet 21, and sends it into the air outlet duct 4 along the air inlet cavity 2. After being heated by the heating component 41, the hot air is sent into the quilt from the air outlet 42. At this time, because the whole device is placed inside the quilt, the fan 22 can only draw the hot air that was sent into the quilt earlier, and then send it back into the quilt after heating, forming an internal circulation heating and air supply.

[0057] Since the air drawn into the air outlet duct 4 by the fan 22 is hot air with temperature inside the quilt, and since the hot air inside the quilt has little contact with the cold air outside, the hot air sent into the quilt, in addition to losing the heat required for warming the quilt, can retain a certain amount of heat itself, which is then re-extracted for heating and then sent back into the quilt. Compared with the existing quilt warmer that draws cold air outside the quilt for heating, the present device has higher heating efficiency, the temperature inside the quilt increases faster, and it is more energy-efficient.

[0058] Furthermore, since the air outlet 42 of the device is arranged on the main unit, the heated hot air is directly sent into the quilt from the air outlet 42 without being transported through other intermediate components. Therefore, compared with the existing quilt warmer that uses a long air outlet pipe to supply air, the device can reduce the heat loss caused by the contact between the hot air and the long air outlet pipe, and can better control the air outlet 42, increase the heated area in the quilt, and maximize the quilt warming effect.

[0059] Furthermore, the device adopts an upper shell and a lower shell that are snapped together to form an inner cavity to install important components and parts of the quilt warmer such as air intake, heating, and air supply. The whole machine is integrated into one, with a small size, which is convenient for storage and convenient for users to hold the whole machine and reach into the quilt to warm the quilt.

[0060] It should be noted that the heating component 41 in this embodiment can be understood as a heating component 41 equipped with heating fins, and multiple groups of heating fins are distributed at intervals so that the air drawn into the air outlet channel can pass through the intervals to be delivered from the air outlet 42. When the drawn air passes through the intervals between the heating fins, heat is transferred by the heating fins to form hot air.

[0061] Preferably, Figure 2 As shown, the air inlet member 23 includes a supporting ring plate 231 and a plurality of groups of air inlet ribs 232, one end of each group of air inlet ribs 232 is fixed to the air inlet 21, and the other end extends upward and is connected to the outer ring edge of the supporting ring plate 231, so that the air inlet member 23 is raised upward relative to the air inlet 21;

[0062] The plurality of groups of air inlet ribs 232 are distributed at intervals to form air inlet gaps 233 between any two of the air inlet ribs 232 , and the plurality of air inlet gaps 233 constitute the first air inlet portion.

[0063] In this embodiment, the air inlet member 23 is formed integrally with the shell 1, specifically, the air inlet member 23 is formed by protruding upward at the air inlet 21 of the upper shell, so in this embodiment, one end of the air inlet rib 232 is fixed to the shell 1 where the air inlet 21 is located. Since the air inlet 21 is an annular opening structure, multiple groups of air inlet ribs 232 extend upward around the air inlet 21 or bend after extending upward, and one bent end is fixed to the outer ring edge of the support ring plate 231, so that the air inlet member 23 can be protruded upward relative to the air inlet 21. At the same time, the multiple groups of air inlet ribs 232 are spaced apart from each other, so that an air inlet gap 233 is formed between the two air inlet ribs 232. After the fan 22 is started, the outside air will be drawn into the air inlet cavity 2 from the air inlet gap 233, so the multiple air inlet gaps 233 located at the air inlet position on the side of the air inlet member 23 constitute the first air inlet part.

[0064] In another embodiment, the air inlet member 23 can also be detachably installed from the shell 1. If detachable installation is to be achieved, a snap-fit ​​structure or a snap-in structure needs to be designed on the shell 1 where the air inlet 21 is located, and the air inlet rib 232 can be detachably installed by snapping the snap-fit ​​structure or the snap-in structure, thereby achieving detachable installation of the entire air inlet member 23 and the shell 1.

[0065] Preferably, Figure 2 As shown, the air inlet member 23 further includes a plurality of mesh branches 234, which are staggered to form a mesh surface with a plurality of air inlet mesh holes 235, and the mesh surface is arranged on the inner ring edge of the support ring plate 231 to form the second air inlet portion.

[0066] In this embodiment, the air inlet member 23 also includes a mesh surface arranged at the top air inlet position, and the mesh surface is formed by a plurality of groups of mesh branches 234 that are staggered and connected. Since a plurality of groups of mesh branches 234 are staggered to form a plurality of air inlet mesh holes 235, after the fan 22 is started, the outside air will be drawn into the air inlet cavity 2 from the air inlet mesh holes 235, so the mesh surface structure with a plurality of air inlet mesh holes 235 at the top constitutes the second air inlet portion. In other embodiments, the air inlet mesh hole 235 can be understood as a hole shape with a polygonal structure or a circular structure in cross section, and the specific hole shape is determined according to the staggered distribution of the actual mesh branches 234.

[0067] Furthermore, because the main body of the device needs to be placed inside the quilt when performing the quilt warming operation, in order to prevent the quilt or other debris such as cotton wool from being sucked in during exhaustion and causing damage to the fan 22, the air inlet member 23 of the device is designed as an upwardly protruding structure. Combined with the blocking design of the air inlet ribs 232 and the mesh support bars 234, the air inlet member 23 becomes a filtering structure that can block the adsorption of the quilt or cotton wool while letting in air; at the same time, two air inlet positions are formed on the side and top of the air inlet member 23. Therefore, when the top air inlet position is adsorbed by the quilt, the side air inlet position can still let in air, thereby preventing the fan 22 from idling.

[0068] Preferably, Figure 3 As shown, the air regulating member 3 further includes a lower ring plate 32 and an upper ring plate 31, one end of each set of first wind shielding portions 33 is fixed to the lower ring plate 32, and the other end extends upward and is connected to the outer ring edge of the upper ring plate 31, so that the air regulating member 3 protrudes upward so that the air regulating member 3 can be detachably covered on the air inlet member 23;

[0069] The plurality of groups of the first wind shielding portions 33 are spaced apart to form an air inlet gap 34 between any two of the first wind shielding portions 33;

[0070] By rotating the air regulating member 3, the first air shield 33 and the air inlet ribs 232 and the air inlet gaps 233 can be overlapped, or the first air shield 33 can be located between the air inlet gaps 233 and the air inlet ribs 232 can be located between the air inlet gaps, so as to adjust the air intake of the first air inlet.

[0071] In this embodiment, the air regulating member 3 includes a lower ring plate 32 and an upper ring plate 31. The lower ring plate 32 is close to the side of the shell 1 where the air inlet 21 is located, and the upper ring plate 31 is away from the side of the shell 1 where the air inlet 21 is located. Each group of first wind shields 33 is fixed to the lower ring plate 32, and the other end of the first wind shield 33 extends upward or bends after extending, and the bent end is connected to the outer ring plate of the upper ring plate 31, so that the entire air regulating member 3 protrudes upward, and because the size of the air regulating member 3 is larger than that of the air inlet member 23, the air regulating member 3 can be detachably covered on the air inlet member 23. It should be noted that when the air regulating member 3 covers the air inlet member 23, the air regulating member 3 and the air inlet member 23 may not be completely in contact, so that there is a certain distance between the air regulating member 3 and the air inlet member 23, and this distance space can also be used for air intake.

[0072] Furthermore, the spacing between the plurality of first wind shields 33 is distributed so that an air inlet gap 34 is formed between the first wind shields 33. In the present embodiment, the first wind shields 33 can be understood as large-sized air inlet ribs 232. When the air regulating member 3 is rotated so that the first wind shields 33 of the air regulating member 3 overlap with the air inlet ribs 232 of the air inlet member 23, the air inlet gap 233 and the air inlet gap 34 also overlap. Figure 6 and Figure 7 As shown, the air inlet gap 233 will not be blocked by the first wind shield 33, and the air inlet gap 34 will not be blocked by the air inlet rib 232, so the air inlet volume is maximum at this time; Figure 8 and Fig. 9 As shown, when the air regulating member 3 is further rotated so that the first air shielding portion 33 of the air regulating member 3 is located between the air inlet gaps 233 of the air inlet member 23, and the air inlet ribs 232 of the air inlet member 23 are also located between the air inlet gaps 34 of the air regulating member 3, at this time, both the first air shielding portion 33 and the air inlet ribs 232 can intercept the air intake of the air inlet gaps 233 and the air inlet gaps 34, so that when the fan 22 is running at rated power, the air intake volume and air intake speed in the same time will be reduced, thereby reducing the air intake volume of the side air inlet position of the air inlet 21 in disguised form;

[0073] Preferably, Figure 3 As shown, the plurality of second wind shielding portions 35 are staggered to form a mesh structure having a plurality of holes 36, and the mesh structure is arranged on the inner ring edge of the upper ring plate 31;

[0074] By rotating the air regulating member 3, the second air shield 35 and the mesh support bar 234, the holes 36 and the air inlet mesh 235 can be overlapped, or the second air shield 35 can block the air inlet mesh 235, and the mesh support bar 234 can block the holes 36, so as to adjust the air intake of the second air inlet.

[0075] In the present device, a plurality of groups of the second wind shielding parts 35 are staggered to form a mesh structure with a plurality of groups of holes 36, and the mesh structure is arranged on the inner ring edge of the upper ring plate 31. In one embodiment, the mesh structure can be understood as a large-sized mesh surface, that is, the structural design of the second wind shielding parts 35 is equivalent to the mesh support bars 234, and the holes 36 are equivalent to the air inlet mesh holes 235. In another embodiment, the staggered distribution of the second wind shielding parts 35 can be different from the staggered distribution design of the mesh support bars 234 of the air inlet member 23, so that the hole shape of the hole 36 is different from the hole shape of the air inlet mesh holes 235.

[0076] The air regulating member 3 is rotated so that the second air shielding portion 35 overlaps with the mesh support bar 234 in a top view, and the hole 36 overlaps with the air inlet mesh hole 235. Figure 6 and Figure 7As shown, at this time, the second wind shield 35 will not intercept the air inlet mesh 235, and the mesh support bar 234 will not intercept the hole 36. At this time, the air inlet volume is the largest; Figure 8 and Fig. 9 As shown, when the air regulating member 3 is further rotated so that each second wind shield portion 35 intercepts the corresponding air inlet mesh 235, the mesh support bar 234 will also intercept the hole 36. At this time, the air intake of the air inlet mesh 235 and the hole 36 is intercepted, so that when the fan 22 runs at rated power, the air intake volume and air intake speed in the same time will be reduced, thereby reducing the air intake volume at the top air inlet position of the air inlet 21 in disguised form.

[0077] Furthermore, it should be noted that, in actual use, the dimensions of the first wind shield portion 33 and the second wind shield portion 35 cannot completely cover the air inlet gap 233 and the air inlet mesh 235, so as to avoid causing the air inlet volume to be too small or completely absent, thereby causing the heating component 41 to overheat or the fan 22 to idle, resulting in overheating and damage to the device.

[0078] Furthermore, due to the design of the first wind shielding portion 33 and the second wind shielding portion 35, the air regulating member 3 as a whole becomes a filtering structure, which can prevent the adsorption of quilts or cotton wool while letting in air.

[0079] Preferably, the upper ring plate 31 is provided with a toggle portion 37 , and the toggle portion 37 extends outward toward the outer ring edge of the upper ring plate 31 .

[0080] In this embodiment, in order to facilitate the rotation of the air regulating member 3 to adjust the air intake, the device installs a toggle portion 37 on the upper ring plate 31, and the toggle portion 37 protrudes from the outer ring edge of the upper ring plate 31. The air regulating member 3 can be easily rotated with the help of the toggle portion 37.

[0081] Preferably, Figure 1 As shown, a concave cavity 11 is provided on the outside of the housing 1 at the installation position corresponding to the air inlet 21, and the horizontal plane where the air regulating member 3 is located is lower than the horizontal plane of the cavity opening of the concave cavity 11;

[0082] The cavity wall of the cavity 11 is provided with a notch 111;

[0083] Air can flow into the air inlet 21 through the notch 111 and / or the opening of the concave cavity 11 .

[0084] In this embodiment, since the device is placed inside the quilt when performing the quilt warming operation, and the air inlet 21 is also located inside the quilt, the air inlet 21 may suck the quilt when drawing air, causing the air inlet 21 to be blocked and the fan 22 to run idle, making it impossible to draw hot air from the quilt for heating. In order to solve this problem, the present application provides a concave cavity 11 at the installation position of the upper shell corresponding to the air inlet 21, and the air inlet 21, the air inlet member 23 and the air regulating member 3 are placed in the concave cavity 11, so that the horizontal plane where the air inlet position is located is lower than the cavity opening of the concave cavity 11, forming a height difference, so that when the air inlet 21 draws hot air from the quilt, the cavity opening of the concave cavity 11 can block the sucked quilt;

[0085] Furthermore, we also consider that when the suction force of the fan 22 is too large, the height difference between the cavity opening of the concave cavity 11 and the horizontal plane where the air inlet 21 is located may not be able to block the adsorbed quilt. Therefore, the device also has a plurality of notches 111 on the cavity wall of the concave cavity 11. When the cavity opening of the concave cavity 11 is blocked by the quilt, that is, when the air inlet position at the top of the air regulating member 3 and the air inlet member 23 is adsorbed by the quilt, the hot air in the quilt can still enter the air inlet 21 through the notch 111 on the side wall of the concave cavity 11 along the air inlet gap 233 or the air inlet gap 34, thereby preventing the problem that the air inlet 21 cannot draw air due to the adsorption of the quilt.

[0086] Preferably, Figure 4 and Figure 5 As shown, temperature sensors are provided at the top and bottom of the air outlet duct 4 , and a temperature fuse 5 is disposed at the top of the air outlet cavity, and the temperature fuse 5 is electrically connected to the heating component 41 .

[0087] In this embodiment, the temperature sensor is arranged at the top and bottom of the air outlet duct 4, and is used to detect the temperature of the hot air sent out of the air outlet duct 4, so as to cooperate with the intelligent electric control to adjust the speed of the fan 22, the heating efficiency and the temperature digital display and other functions. At the same time, a temperature fuse 5 is arranged at the top of the air outlet duct 4, and the temperature fuse 5 is electrically connected to the heating component 41. Because the device is placed inside the quilt as a whole, and the hot air in the quilt is circulated and heated, it is easy to have an over-high temperature. Therefore, when the temperature sensor detects that the temperature is too high, it can automatically trigger the temperature fuse 5 to disconnect so that the heating component 41 is no longer heated, thereby achieving the overheating protection effect of the device.

[0088] Preferably, it further comprises an electric control board installation cavity 6, an electric control board 61 is installed on the cavity wall of the electric control board installation cavity 6, and the electric control board 61 is electrically connected with a button, and the button is exposed from the side wall of the housing 1;

[0089] A wire outlet hole 72 is formed on the cavity wall of the concave cavity 11 , and the electric control board installation cavity 6 is connected to the concave cavity 11 through the wire outlet hole 72 .

[0090] Preferably, a power supply installation cavity 7 for installing a power supply is provided between the air outlet duct 4 and the electric control board installation cavity 6;

[0091] A wiring groove 71 is formed on the side wall of the power supply installation cavity 7 , and the power supply installation cavity 7 is connected to the electric control board installation cavity 6 through the wiring groove 71 .

[0092] In this embodiment, the power supply installation cavity 7 is used to install the power supply, and an electric control board installation cavity 6 is formed between the power supply installation cavity 7 and the housing 1. The electric control board installation cavity 6 is used to install an electric control board 61. The electric control board 61 of this device is installed on the cavity wall of the electric control board installation cavity 6 close to the side of the housing 1, so that the keys can be exposed from the housing 1. At the same time, the power supply installation cavity 7 is connected to the electric control board installation cavity 6 through the wiring groove 71, so that the power supply and the electric control board 61 can be electrically connected by wiring. At the same time, the power line can be routed from the power supply installation cavity 7 through the wiring groove 71 to the electric control board installation cavity 6, and then routed to the outside through the outlet hole 72.

[0093] Preferably, the air outlet 42 is installed with an air outlet grille 8 , and an isolation net 9 is installed between the air outlet grille 8 and the air outlet duct 4 .

[0094] In this embodiment, in order to prevent external hard objects from being inserted into the air outlet 42 and causing damage to the heating component 41, the device is equipped with an air outlet grille 8 and an isolation net 9 at the air outlet 42, and the air outlet grille 8 and the isolation net 9 are used to prevent external hard objects from being inserted into the air outlet duct 4.

[0095] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An internal circulation quilt warming device with adjustable air intake, characterized in that: It includes a housing provided with an air inlet cavity and an air outlet duct; The air inlet cavity is equipped with a fan and is provided with an air inlet exposed outside the shell, the air inlet is provided with an air inlet member, and the air inlet member is provided with a first air inlet portion and a second air inlet portion; An air regulating member covers the air inlet member, the air regulating member is provided with a plurality of first air shielding parts and a second air shielding part, the air regulating member can rotate relative to the air inlet member so that the first air shielding part intercepts the air inlet of the first air inlet part and the second air shielding part intercepts the air inlet of the second air inlet part; the air outlet duct is installed with a heating component and is provided with an air outlet; The air inlet is connected to the air outlet of the air outlet duct through the air inlet cavity; When performing the quilt warming operation, the whole machine can be placed in the quilt, so that the fan draws the hot air in the quilt from the air inlet to the air outlet duct, and then the hot air is heated by the heating component and then sent back into the quilt from the air outlet.

2. According to claim 1, an internal circulation quilt warming device with adjustable air intake volume is characterized in that: The air inlet member includes a supporting ring plate and a plurality of groups of air inlet ribs, one end of each group of air inlet ribs is fixed to the air inlet, and the other end extends upward and is connected to the outer ring edge of the supporting ring plate, so that the air inlet member protrudes upward relative to the air inlet; The plurality of groups of air inlet ribs are distributed at intervals to form air inlet gaps between any two of the air inlet ribs, and the plurality of air inlet gaps constitute the first air inlet portion.

3. According to claim 2, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: The air inlet member further comprises a plurality of groups of mesh branches, which are staggeredly distributed to form a mesh surface having a plurality of groups of air inlet mesh holes, and the mesh surface is arranged on the inner ring edge of the supporting ring plate to form the second air inlet portion.

4. According to claim 2, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: The air regulating member further comprises a lower ring plate and an upper ring plate, one end of each set of first wind shielding parts is fixed to the lower ring plate, and the other end extends upward and is connected to the outer ring edge of the upper ring plate, so that the air regulating member protrudes upward so that the air regulating member can be detachably covered on the air inlet member; The plurality of groups of the first wind shielding portions are distributed at intervals so as to form air inlet gaps between any two of the first wind shielding portions; By rotating the air regulating member, the first air shield and the air inlet ribs, and the air inlet gaps and the air inlet gaps can be overlapped, or the first air shield can be located between the air inlet gaps, and the air inlet ribs can be located between the air inlet gaps, so as to adjust the air intake of the first air inlet.

5. According to claim 3, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: The plurality of second wind shielding parts are staggeredly distributed to form a mesh structure with a plurality of holes, and the mesh structure is arranged on the inner ring edge of the upper ring plate; By rotating the air regulating member, the second air shield and the mesh support bars, the holes and the air inlet mesh holes can be overlapped, or the second air shield can block the air inlet mesh holes, and the mesh support bars can block the holes, so as to adjust the air intake of the second air inlet.

6. According to claim 1, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: A concave cavity is arranged on the outside of the shell at the installation position corresponding to the air inlet, and the horizontal plane where the air regulating member is located is lower than the horizontal plane of the cavity opening of the concave cavity; The cavity wall of the concave cavity is provided with a notch; Air can flow into the air inlet through the notch and / or the opening of the concave cavity.

7. According to claim 1, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: Temperature sensors are arranged at the top and bottom of the air outlet duct, and a temperature fuse is arranged at the top of the air outlet cavity, and the temperature fuse is electrically connected to the heating component.

8. According to claim 6, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: It also includes an electric control board installation cavity, the cavity wall of the electric control board installation cavity is installed with an electric control board, the electric control board is electrically connected with a button, and the button is exposed on the side wall of the housing; The cavity wall of the concave cavity is provided with a wire outlet hole, and the electric control board installation cavity is connected to the concave cavity through the wire outlet hole; A power supply installation cavity for installing a power supply is provided between the air outlet duct and the electric control board installation cavity; A wiring groove is formed on the side wall of the power supply installation cavity, and the power supply installation cavity is connected to the electric control board installation cavity through the wiring groove.

9. According to claim 4, the internal circulation quilt warming device with adjustable air intake volume is characterized in that: The upper ring plate is provided with a toggle portion, and the toggle portion extends outward toward the outer ring edge of the upper ring plate.

10. The internal circulation quilt warming device with adjustable air intake according to claim 1, characterized in that: The air outlet is equipped with an air outlet grid plate, and an isolation net is installed between the air outlet grid plate and the air outlet duct.

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