Warm air blower

Abstract

The utility model provides a fan heater which comprises a shell, the shell is provided with a containing cavity, a first air outlet and a second air outlet, and the first air outlet and the second air outlet communicate with the containing cavity and are located on the same side of the shell; the warm air assembly comprises a first heating piece and a fan, the first heating piece and the fan are located in the containing cavity, and the first heating piece is located between the fan and the first air outlet; and the heating assembly comprises a second heating piece, a first fixing piece and a second fixing piece, the second heating piece and the second air outlet are oppositely arranged, the first fixing piece and the second fixing piece are connected to the shell, the first fixing piece and the second fixing piece are vertically arranged in a spaced mode, and the second heating piece is connected to the first fixing piece and the second fixing piece in an inserted mode. According to the warm air blower, the heat energy transfer range can be expanded, and the heat transfer efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a fan heater. Background Art

[0002] A fan heater, also known as an air heater or electric fan heater, is a common household and industrial heating device that uses an electric fan to blow air through a heating element to heat the air and generate warm air, thereby increasing the ambient temperature. Traditional fan heaters are often simple in design and are mostly equipped with only a single type of heating element, such as a resistance wire heater.

[0003] Although the structural design of the traditional heater is relatively simple and can increase the ambient temperature to a certain extent, the heat energy conversion is limited when a single heating element is working, so the heat energy transfer range and heat transfer efficiency are also relatively limited. Utility Model Content

[0004] The present application provides a heater to solve the technical problem that the existing heater products have limited heat energy transfer range and heat transfer efficiency due to the use of a single heating element.

[0005] In a first aspect, the present application provides a heater, the heater comprising:

[0006] A housing, wherein the housing is provided with a receiving cavity, a first air outlet and a second air outlet, wherein the first air outlet and the second air outlet are connected to the receiving cavity and are located on the same side of the housing;

[0007] A warm air component, the warm air component comprising a first heating element and a fan, the first heating element and the fan are located in the accommodating cavity, and the first heating element is located between the fan and the first air outlet;

[0008] The heating component includes a second heating element, a first fixing element and a second fixing element, the second heating element is arranged opposite to the second air outlet, the first fixing element and the second fixing element are connected to the shell, the first fixing element and the second fixing element are arranged at intervals up and down, and the second heating element is respectively plugged into the first fixing element and the second fixing element.

[0009] A further technical solution is that the first fixing member is provided with a first mounting through hole and a plurality of first heat dissipation holes, the first mounting through hole runs through two opposite sides of the first fixing member, one end of the second heating element is plugged into the first mounting through hole, and the plurality of first heat dissipation holes face the second air outlet;

[0010] The second fixing member is provided with a second mounting through hole and a plurality of second heat dissipation holes, the second mounting through hole runs through opposite sides of the second fixing member, one end of the second heating element is plugged into the second mounting through hole, and the plurality of second heat dissipation holes face the second air outlet.

[0011] A further technical solution is that the heating component further includes a first limiting ring and a second limiting ring;

[0012] The first limiting ring is sleeved on the outer circumference of the second heating element and abuts against the second heating element and the first fixing element;

[0013] The second limiting ring is sleeved on the outer circumference of the second heating element and abuts against the second heating element and the second fixing element.

[0014] A further technical solution is that the first limiting ring and the second limiting ring both include a first limiting portion and a second limiting portion connected to each other, and the cross-sectional area of ​​the first limiting portion is smaller than the cross-sectional area of ​​the second limiting portion.

[0015] A further technical solution is that the heating component further includes a reflector;

[0016] The reflector is connected between the first fixing member and the second fixing member, and is arranged relatively spaced apart from the second heating element. The reflector is used for collecting the heat generated by the second heating element and then dissipating it in the air.

[0017] A further technical solution is that the reflective element is arranged in an arc shape, and an inner arc surface of the reflective element is opposite to and spaced from the second heating element.

[0018] A further technical solution is that the first heating element is a PTC heating element, and the second heating element is selected from one of a halogen tube, a quartz tube, a stainless steel tube or a carbon tube.

[0019] A further technical solution is that the warm air assembly may further include a supporting frame and a fan fixing frame.

[0020] Wherein, the support frame is mounted on the housing, and the first heating element is embedded in the support frame and located in the accommodating cavity;

[0021] The fan fixing frame is connected between the fan and the supporting frame.

[0022] A further technical solution is that the first air outlet and the second air outlet are arranged at intervals along the height direction of the shell.

[0023] A further technical solution is that the heater further includes a first protection net and a second protection net;

[0024] The first protective net is connected to the housing and is arranged at the first air outlet;

[0025] The second protective net is connected to the shell and is arranged at the second air outlet.

[0026] The beneficial effect of the present application is as follows: different from the prior art, the present application arranges a warm air component and a heating component in the heater, wherein the warm air component includes a first heating element and a fan arranged at the first air outlet, so that the fan dissipates the heat generated by the first heating element to the outside through the first air outlet, and connects the second heating element included in the heating component to the shell through the first fixing element and the second fixing element, and arranges it opposite to the second air outlet, so that the heat generated by the second heating element is dissipated to the outside through the second air outlet, that is, the present application combines the direct heating design of the first heating element and the fan, and the radiant heat energy supplement of the second heating element, and adopts a dual heating mechanism to work together, which can expand the heat energy coverage range of the heater and improve the heat transfer efficiency of the heater, and by arranging the first air outlet and the second air outlet located on the same side of the shell, the multi-directional uniform distribution of hot air in the space can be achieved, avoiding the small heat energy coverage range caused by the traditional single hot air concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0028] Figure 1 This is a schematic diagram of the assembly of an embodiment of a heater provided in the present application;

[0029] Figure 2 An exploded schematic diagram of an embodiment of a heater provided by the present application;

[0030] Figure 3 A schematic diagram of the assembly of the heating assembly provided for this application;

[0031] Figure 4 An exploded schematic diagram of the heater assembly provided for this application;

[0032] Figure 5 A schematic diagram of the assembly of the heating component provided for this application;

[0033] Figure 6 An exploded schematic diagram of the heating component provided for this application;

[0034] Figure 7This is a schematic diagram of the decomposition of the heating component provided in this application from another angle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] A fan heater, also known as an air heater or electric fan heater, is a common household and industrial heating device that uses an electric fan to blow air through a heating element to heat the air and generate warm air, thereby increasing the ambient temperature. Traditional fan heaters are often simple in design and are mostly equipped with only a single type of heating element, such as a resistance wire heater.

[0038] Although the structural design of the traditional heater is relatively simple and can increase the ambient temperature to a certain extent, the heat energy conversion is limited when a single heating element is working, so the heat energy transfer range and heat transfer efficiency are also relatively limited.

[0039] Therefore, in order to solve the technical problem that the existing heater products have limited heat transfer range and heat transfer efficiency due to the use of a single heating element, the present application provides a heater that can expand the heat transfer range and improve the heat transfer efficiency. Please refer to the following embodiments for details.

[0040] Example 1

[0041] See also Figure 1-Figure 7 The heater 10 provided in the present application includes a housing 100 , a heater component 200 and a heating component 300 .

[0042] The housing 100 is provided with a containing cavity, a first air outlet 120 and a second air outlet 130 . The first air outlet 120 and the second air outlet 130 are connected to the containing cavity and are located on the same side of the housing 100 .

[0043] For example, the first air outlet 120 and the second air outlet 130 may be spaced apart along a width direction or a height direction of the housing 100 .

[0044] The heating component 200 includes a first heating element 210 and a fan 220 . The first heating element 210 and the fan 220 are located in the accommodating cavity. The first heating element 210 is located between the fan 220 and the first air outlet 120 .

[0045] Among them, the first heating element 210 can be a PTC heating element. Since the PTC heating element heats up relatively quickly and has a positive temperature coefficient characteristic, that is, the resistance increases with the increase of temperature, the current decreases through heating, and the heating can be automatically adjusted. Therefore, it is necessary to set a fan 220 to assist in heat dissipation to maintain the temperature control of the PTC heating element, ensure that the PTC heating element works in a stable and efficient range, and avoid overheating.

[0046] Specifically, the fan 220 can provide forced convection, accelerate the circulation of hot air, take away the heat of the PTC heating element, enable the PTC heating element to dissipate heat quickly and evenly, and then maintain the ambient temperature around the PTC heating element, so that the hot air output is stable, meet the needs of the PTC heating element to quickly heat up, and improve the overall heating efficiency.

[0047] The heating assembly 200 may further include a supporting frame 230 and a fan fixing frame 240 .

[0048] Specifically, the support frame 230 is installed on the shell 100, and the support frame 230 is provided with a U-shaped hole. The protrusion on the first heating element 210 can be inserted into the U-shaped hole to embed the first heating element 210 on the support frame 230 and locate it in the accommodating cavity.

[0049] The fan 220 includes an air inlet side and an air outlet side. The air inlet side is mounted on the rear housing, and the air outlet side is mounted on a fan fixing bracket 240 to face the first heating element 210 . The fan fixing bracket 240 can be bolted to the support frame 230 .

[0050] The heating component 300 includes a second heating element 310, a first fixing element 320 and a second fixing element 330. The second heating element 310 is arranged opposite to the second air outlet 130. The first fixing element 320 and the second fixing element 330 are connected to the shell 100. The first fixing element 320 and the second fixing element 330 are arranged at intervals up and down. The second heating element 310 is respectively plugged into the first fixing element 320 and the second fixing element 330.

[0051] The second heating element 310 is selected from a quartz tube, a halogen tube, a stainless steel tube or a carbon tube.

[0052] In the embodiment of the present application, the second heating element 310 is preferably a quartz tube.

[0053] Since the quartz tube mainly generates heat through the resistance wire, the heat energy is mainly radiated directly, and the heat is usually directly transferred to the air or the surrounding environment, without strict temperature control. In addition, the heat generated by the quartz tube mainly relies on radiation and natural convection. The hot air generated by the quartz tube naturally rises, and when it rises to the convection area of ​​the fan 220, it can be strengthened to a certain extent, thereby accelerating the circulation and heat dissipation of the hot air to a greater extent.

[0054] In addition, since the quartz tube has stable heat generation and is resistant to high temperatures, it is suitable for continuous heating occasions. Therefore, a stable heat output can be maintained without the fan 220.

[0055] In this embodiment, a heating assembly 200 and a heating assembly 300 are arranged in the heater 10, wherein the heating assembly 200 includes a first heating element 210 and a fan 220 arranged at the first air outlet 120, so that the fan 220 dissipates the heat generated by the first heating element 210 to the outside through the first air outlet 120, and the second heating element 310 included in the heating assembly 300 is connected to the housing 100 through the first fixing element 320 and the second fixing element 330, and is arranged opposite to the second air outlet 130, so that the heat generated by the second heating element 310 is dissipated to the outside through the first air outlet 120. The heat energy of the first heating element 210 and the second heating element 310 is supplemented by the radiant heat energy, and the heat transfer efficiency of the heater 10 is improved. By arranging the first air outlet 120 and the second air outlet 130 on the same side of the shell 100, the hot air can be evenly distributed in multiple directions in the space, thus avoiding the small heat coverage caused by the traditional single hot air concentration.

[0056] See also Figure 1-Figure 7 In some embodiments, the first fixing member 320 is provided with a first mounting through hole 321 and a plurality of first heat dissipation holes 322, the first mounting through hole 321 runs through opposite sides of the first fixing member 320, one end of the second heat generating member 310 is plugged into the first mounting through hole 321, and the plurality of first heat dissipation holes 322 face the second air outlet 130.

[0057] Specifically, the first fixing member 320 includes a first fixing portion 31 , a first connecting portion 32 and a first mounting portion 33 which are connected in sequence.

[0058] The first fixing portion 31 may be provided with a bolt hole and be bolted to the housing 100 .

[0059] The first connection portion 32 abuts against the outer periphery of the second heat generating element 310 , and the first connection portion 32 defines a plurality of first heat dissipation holes 322 .

[0060] The first mounting portion 33 defines a plurality of first mounting through holes 321 , and the number of the first mounting through holes 321 corresponds to the number of the second heat generating elements 310 .

[0061] Similarly, the second fixing member 330 is provided with a second mounting through hole 331 and a plurality of second heat dissipation holes 332, wherein the second mounting through hole 331 runs through opposite sides of the second fixing member 330, one end of the second heating element 310 is plugged into the second mounting through hole 331, and the plurality of second heat dissipation holes 332 face the second air outlet 130.

[0062] Specifically, the second fixing member 330 includes a second fixing portion 301 , a second connecting portion 302 and a second mounting portion 303 which are connected in sequence.

[0063] The second fixing portion 301 may be provided with a bolt hole and be bolted to the housing 100 .

[0064] The second connection portion 302 abuts against the outer periphery of the second heat-generating element 310 , and the second connection portion 302 is provided with a plurality of second heat-dissipating holes 332 .

[0065] The second mounting portion 303 is provided with a plurality of second mounting through holes 331 , and the number of the second mounting through holes 331 corresponds to the number of the second heat generating elements 310 .

[0066] In this embodiment, a first mounting through hole 321 is provided on the first fixing member 320 and a second mounting through hole 331 is provided on the second fixing member 330. By directly inserting the two ends of the second heating element 310 into the first mounting through hole 321 and the second mounting through hole 331 respectively to fix the position of the heating element, the assembly steps of the second heating element 310 are simplified, the installation convenience is improved, and the stable connection between the second heating element 310 and the housing 100 is ensured. In addition, by providing a plurality of first heat dissipation holes 322 and second heat dissipation holes 332 facing the second air outlet 130 on the first fixing member 320 and the second fixing member 330, the heat energy generated by the second heating element 310 can be effectively promoted to be dissipated through air convection, thereby improving the heat dissipation efficiency of the second heating element 310.

[0067] See also Figure 5-Figure 7 In some embodiments, the heating component 300 further includes a first limiting ring 340 and a second limiting ring 350 .

[0068] The first limiting ring 340 is sleeved on the outer circumference of the second heating element 310 and abuts against the second heating element 310 and the first fixing element 320 .

[0069] The first limiting ring 340 and the second limiting ring 350 may be made of soft material.

[0070] The first limiting ring 340 includes a first limiting portion 341 and a second limiting portion 342 that are connected to each other, and a cross-sectional area of ​​the first limiting portion 341 is smaller than a cross-sectional area of ​​the second limiting portion 342 .

[0071] The first limiting portion 341 is inserted into the first mounting through hole 321 , and the second limiting portion 342 abuts against the first mounting portion 33 .

[0072] The second limiting portion 342 is provided with an insertion hole, and the second heating element 310 is inserted into the insertion hole.

[0073] The second limiting ring 350 is sleeved on the outer circumference of the second heating element 310 and abuts against the second heating element 310 and the second fixing element 330 .

[0074] Likewise, the second limiting ring 350 may include a first limiting portion 341 and a second limiting portion 342 connected to each other, and the configuration of the first limiting ring 340 described above may be referred to for details.

[0075] By providing the first limiting ring 340 and the second limiting ring 350, unnecessary movement or shaking of the second heating element 310 during use can be prevented, thereby improving the stability of the connection between the second heating element 310 and the first fixing element 320 and the second fixing element 330. At the same time, the limiting ring sleeve made of soft material can avoid damage to the second heating element 310 caused by hard impact or extrusion, thereby protecting the second heating element 310 from external damage and extending the service life of the second heating element 310.

[0076] See also Figure 2 and Figure 6 In some embodiments, the heat generating component 300 further includes a reflective element 360 .

[0077] The reflector 360 is connected between the first fixing member 320 and the second fixing member 330 and is spaced apart from the second heating element 310 . The reflector 360 is used to gather the heat generated by the second heating element 310 and then dissipate it in the air.

[0078] Since the temperature that the components inside the shell 100 and the plastic shell 100 can withstand is limited, and in order to prevent the temperature of the back shell from being too high, heat dissipation holes are usually set in the back shell so that cold air can be blown from the back shell to reduce the temperature of the back shell and the components inside the shell 100, or the heat of the back shell and the components inside the shell 100 can be dissipated into the air through the heat dissipation holes of the back shell.

[0079] Although providing heat dissipation holes in the rear shell can prevent the rear shell temperature from being too high, it will also cause the heat generated inside the shell 100 to dissipate from the rear shell and cause heat loss. Therefore, in order to prevent the heat generated inside the shell 100 from being dissipated from the rear shell and causing heat loss, this embodiment provides a reflective element 360 that is relatively spaced apart from the second heating element 310, which is used to gather the heat generated by the second heating element 310 in the reflective element 360 and then dissipate it from the front shell.

[0080] In some embodiments, the reflective element 360 is arranged in an arc shape, and the inner arc surface of the reflective element 360 is opposite to and spaced from the second heating element 310 .

[0081] In this way, by adopting an arc-shaped reflector 360 and directing the inner arc surface of the reflector 360 toward the second heating element 310, not only the reflection path of heat energy can be optimized, but also the heat exchange area can be increased to ensure more efficient utilization and dispersion of heat energy.

[0082] See also Figure 1-Figure 2 In some embodiments, the heater 10 further includes a first protective net 410 and a second protective net 420 .

[0083] The first protection net 410 is connected to the housing 100 and disposed at the first air outlet 120 ; the second protection net 420 is connected to the housing 100 and disposed at the second air outlet 130 .

[0084] The heating component may be provided with a protective net fixing frame 250 , and the second protective net 420 is installed on the protective net fixing frame 250 .

[0085] The first protection net 410 and the second protection net 420 may be diamond-shaped iron nets, square iron nets or round iron nets, preferably diamond-shaped iron nets.

[0086] Because the diamond grid is tightly designed and the gaps are relatively small, it can effectively prevent fingers from accidentally entering and avoid injuries when children or operators accidentally touch it, ensuring safe operation. In addition, the diamond iron mesh can provide more ventilation area, which helps air circulation and improves heat dissipation efficiency.

[0087] In addition, the diamond iron mesh can present a visual three-dimensional effect, increase the high-end texture of the product, and improve the overall appearance of the heater 10 product.

[0088] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0089] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof.

[0090] The above are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A fan heater, characterized in that: The heater comprises: A housing, wherein the housing is provided with a containing cavity, a first air outlet and a second air outlet, wherein the first air outlet and the second air outlet are connected to the containing cavity and are located on the same side of the housing; A warm air component, the warm air component comprising a first heating element and a fan, the first heating element and the fan are located in the accommodating cavity, and the first heating element is located between the fan and the first air outlet; The heating component includes a second heating element, a first fixing element and a second fixing element, the second heating element is arranged opposite to the second air outlet, the first fixing element and the second fixing element are connected to the shell, the first fixing element and the second fixing element are arranged at intervals up and down, and the second heating element is respectively plugged into the first fixing element and the second fixing element.

2. The air heater according to claim 1, characterized in that: The first fixing member is provided with a first mounting through hole and a plurality of first heat dissipation holes, the first mounting through hole runs through two opposite sides of the first fixing member, one end of the second heating element is plugged into the first mounting through hole, and the plurality of first heat dissipation holes face the second air outlet; The second fixing member is provided with a second mounting through hole and a plurality of second heat dissipation holes, the second mounting through hole runs through opposite sides of the second fixing member, one end of the second heating element is plugged into the second mounting through hole, and the plurality of second heat dissipation holes face the second air outlet.

3. The air heater according to claim 2, characterized in that: The heating component also includes a first limiting ring and a second limiting ring; The first limiting ring is sleeved on the outer circumference of the second heating element and abuts against the second heating element and the first fixing element; The second limiting ring is sleeved on the outer circumference of the second heating element and abuts against the second heating element and the second fixing element.

4. The air heater according to claim 3, characterized in that: The first limiting ring and the second limiting ring both include a first limiting portion and a second limiting portion connected to each other, and a cross-sectional area of ​​the first limiting portion is smaller than a cross-sectional area of ​​the second limiting portion.

5. The air heater according to claim 1, characterized in that: The heating component also includes a reflector; The reflector is connected between the first fixing member and the second fixing member, and is arranged relatively spaced apart from the second heating element. The reflector is used for collecting the heat generated by the second heating element and then dissipating it in the air.

6. The air heater according to claim 5, characterized in that: The reflective element is arranged in an arc shape, and the inner arc surface of the reflective element is opposite to the second heating element and is arranged at an interval.

7. The air heater according to any one of claims 1 to 6, characterized in that: The first heating element is a PTC heating element, and the second heating element is selected from one of a halogen tube, a quartz tube, a stainless steel tube or a carbon tube.

8. The air heater according to any one of claims 1 to 6, characterized in that: The warm air assembly may also include a support frame and a fan fixing frame; Wherein, the support frame is mounted on the housing, and the first heating element is embedded in the support frame and located in the accommodating cavity; The fan fixing frame is connected between the fan and the supporting frame.

9. The air heater according to any one of claims 1 to 6, characterized in that: The first air outlet and the second air outlet are arranged at intervals along a height direction of the housing.

10. The air heater according to any one of claims 1 to 6, characterized in that: The heater also includes a first protection net and a second protection net; The first protective net is connected to the housing and is arranged at the first air outlet; The second protective net is connected to the shell and is arranged at the second air outlet.

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