WO2018076544A1 - 油汀取暖器 - Google Patents

油汀取暖器 Download PDF

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Publication number
WO2018076544A1
WO2018076544A1 PCT/CN2016/113778 CN2016113778W WO2018076544A1 WO 2018076544 A1 WO2018076544 A1 WO 2018076544A1 CN 2016113778 W CN2016113778 W CN 2016113778W WO 2018076544 A1 WO2018076544 A1 WO 2018076544A1
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WIPO (PCT)
Prior art keywords
air
oil
side air
oil heater
fins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/113778
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English (en)
French (fr)
Inventor
岳宝
王文鹏
陈小潭
周伟平
杜文波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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Publication of WO2018076544A1 publication Critical patent/WO2018076544A1/zh
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Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/20—Heat consumers
    • F24D2220/2009—Radiators
    • F24D2220/2036—Electric radiators

Definitions

  • the invention relates to the technical field of living appliances, in particular to an oil heater.
  • the current working principle of the oil heater is to use an electric heating rod to heat the heat transfer oil in the metal cavity, and then the high temperature heat transfer oil transfers heat to the ambient air through the metal cavity and the heat sink on the cavity to achieve the purpose of heating the user. .
  • the edge of the heat sink of the oil heater generally leaves a very thin air chamber, and a through hole is designed at a certain distance on the air chamber, and the air enters the air chamber through the through hole, due to the air
  • the thermal conductivity is much lower than that of metal (usually stainless steel), so the oil heater in the related art can achieve the purpose of isolating a part of the heat at the edge of the heat sink.
  • the oil heaters rely solely on the air insulation design of the air chamber, and cannot sufficiently cool the edges of the heat sink, and there is a danger of burns during the use of the user.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides an oil heater, which can increase the heat dissipation area of the edge of the heat sink, increase the flow intensity of the air on the inner surface of the heat sink, reduce the temperature of the edge of the heat sink, and enhance the heat dissipation capability of the heat sink. Avoid the risk of burns during the use of the oil heater.
  • An oil heater includes: two oil pipes, the two oil pipes are spaced apart in an up-and-down direction; a plurality of heat sinks, two ends of each of the heat sinks are respectively disposed on the two In the oil pipe, each of the fins is provided with an oil passage communicating with the two oil pipes, and at least one side edge of each of the fins is provided with an air chamber spaced from the oil passage.
  • the air chamber has an air inlet and a top air outlet provided at the top of the air chamber, and the air chambers on the same side of two adjacent heat sinks are in contact.
  • An oil heater according to an embodiment of the present invention is provided with an air chamber having an air inlet and a top air outlet at an edge of the heat sink, and the air chambers on the same side of the adjacent two heat sinks are in contact. Furthermore, the heat dissipation area of the edge of the heat sink is increased, the flow intensity of the air on the inner surface of the heat sink and the air on the outer surface is increased, the temperature of the edge of the heat sink is lowered, the heat dissipation capability of the heat sink is enhanced, and the user is avoided. There is a danger of burns during the oil heater.
  • the air chambers are provided on both side edges of each of the fins, and the adjacent air chambers on the same side are in contact with each other.
  • the oil heater further comprises a bimetal temperature control element for detecting the temperature of the heat transfer oil, and the power source is cut off when the temperature of the heat transfer oil reaches a temperature set by a user.
  • the air inlet includes a side air inlet provided at a side of the air chamber, and a side air outlet is provided on an inner side wall of the air chamber.
  • the oil heater comprises a plurality of sets of fins, each set of fins comprising two of the fins, the air chambers of each set of the fins on the same side
  • the side air inlets are disposed adjacent to each other and the side air outlets are disposed away from each other.
  • the air chambers on the same side of the plurality of fins have the same shape, and the side air inlets and the side air outlets of each of the air chambers are located in the air Both sides of the vertical centerline of the chamber.
  • the side air inlets of each of the air chambers and the side air outlets are correspondingly disposed.
  • each of the air chambers includes a plurality of the side air inlets spaced apart in a longitudinal direction of the oil pipe, and the side air outlets of each of the air chambers are plural and It is disposed in one-to-one correspondence with a plurality of the side air inlets.
  • the height of the side air inlet is lower than the height of the side air outlet.
  • the side air inlet and the side air outlet are respectively formed as rectangular holes extending in a vertical direction.
  • the aspect ratio of the side air inlet and the side air outlet are all in the range of 6-10.
  • the side air inlet and the side air outlet are respectively a plurality, and the plurality of the side air inlets and the plurality of side air outlets are vertically spaced on the heat sink distributed.
  • the side air outlets of each of the air chambers are two and distributed on both sides of a portion of the heat sink defining the oil passage.
  • FIG. 1 is a top plan view of an oil heater according to an embodiment of the present invention.
  • FIG. 2 is a partial schematic view of a heat sink in an oil heater according to an embodiment of the present invention
  • FIG. 3 is a partial schematic view of a heat sink in an oil heater according to further embodiments of the present invention.
  • FIG. 4 is a partial schematic view of a heat sink in an oil heater according to still another embodiment of the present invention.
  • FIG. 5 is a comparison diagram of temperature profiles of edges of a heat sink and a related art heat sink according to an embodiment of the present invention
  • FIG. 6 is a graph comparing heat dissipation power of an oil heater and a related art oil heater according to an embodiment of the present invention.
  • Heat sink 1 air chamber 11; side air inlet 110; side air outlet 111; heat sink group 2;
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the oil heater 100 includes: two oil pipes 3 and a plurality of fins 1.
  • each fin 1 is provided with an oil passage (not shown) communicating with the two oil pipes 3, that is, two oil pipes 3
  • the oil passages of the plurality of fins 1 communicate to form an oil circulation circuit.
  • At least one side edge of each fin 1 is provided with an air chamber 11 spaced from the oil passage, and the air chamber 11 has an air inlet and a top air outlet (not shown) provided at the top of the air chamber 11.
  • the air chambers 11 on the same side of the adjacent two fins 1 are in contact.
  • each of the fins 1 is provided with an air chamber 11 on both side edges thereof, and adjacent air chambers 11 on the same side are in contact.
  • the cross-sectional area of the air chamber 11 at the edge of the heat sink 1 of the oil heater 100 is maximized, thereby increasing the heat dissipation area of the edge of the heat sink 1, and increasing the cooling air staying in the air chamber 11.
  • the time facilitates the convective heat transfer inside the air chamber 11, improves the heat dissipation efficiency of the edge of the heat sink 1, and lowers the temperature of the edge of the heat sink 1.
  • the oil heater 100 further includes a heating rod disposed in the oil pipe 3 located below to heat the heat transfer oil in the oil pipe 3.
  • the oil heater 100 is equipped with a bimetal temperature control element when the temperature of the heat transfer oil reaches The temperature control element automatically disconnects the power supply when the temperature is set by the user. Thereby, the safety and reliability of the oil heater 100 is improved.
  • the oil heater 100 When the oil heater 100 is turned on, the heat transfer oil in the lower oil pipe 3 is heated by the heating rod, and then the high temperature heat transfer oil rises through the oil passage in the plurality of fins 1 to the oil pipe 3 located above. Forming an oil circuit circulation, the oil heater 100 radiates heat of the heat transfer oil through the surfaces of the two oil pipes 3 and the peripheral wall of the heat sink 1, thereby heating the surrounding space environment, and the air cooled heat transfer oil is lowered to the oil pipe 3 located below. The middle is heated by the heating rod to start a new cycle.
  • the cold air outside the oil heater 100 enters the interior of the air chamber 11 through the air inlet of the air chamber 11, and flows out through the top air outlet, that is, the air chamber 11 at the edge of the heat sink 1 is formed.
  • the air flow passage cools the edge of the heat sink 1 during the flow of the air, thereby lowering the temperature of the edge of the heat sink 1.
  • the oil heater 100 according to the embodiment of the present invention is provided with an air chamber 11 at the edge of the heat sink 1, and the heat sink 1 of the oil heater 100 of the embodiment of the present invention is compared with the oil heater of the related art.
  • the air gap of the edge is enlarged, so that the heat dissipation area at the edge of the heat sink 1 can be increased, the heat dissipation at the edge of the heat sink 1 is facilitated, and the temperature at the outermost edge of the heat sink 1 is lowered.
  • the air chambers 11 on the same side of the adjacent two fins 1 are in contact, so that the cross-sectional area of the air chamber 11 at the edge of the fin 1 of the oil heater 100 is maximized, thereby increasing heat dissipation.
  • the heat dissipation area of the edge of the sheet 1 increases the time that the cold air stays in the air chamber 11, facilitates the convective heat transfer inside the air chamber 11, improves the heat dissipation efficiency of the edge of the heat sink 1, and reduces the heat sink 1 The temperature of the edge.
  • the inventors have found through a large number of experiments that, as shown in FIG. 5 to FIG. 6, the oil temperature heater 100 of the embodiment of the present invention has lower the edge temperature of the heat sink 1 to the user's safe use compared with the oil heater of the related art. Range, the temperature drop reaches 50%. The heat dissipation power is increased by 27%.
  • the oil heater 100 by providing an air chamber 11 having an air inlet and a top air outlet at the edge of the heat sink 1, and air chambers on the same side of the adjacent two heat sinks 1 Room 11 is in contact. Further, the heat dissipation area of the edge of the heat sink 1 is increased, the flow intensity of the air on the inner surface of the air chamber 11 of the heat sink 1 is increased, the temperature of the edge of the heat sink 1 is lowered, and the heat dissipation capability of the heat sink 1 is enhanced. The risk of burns during the use of the oil heater 100 is avoided.
  • the intake port includes a side air inlet 110 provided at a side of the air chamber 11, and a side air outlet 111 is provided on an inner side wall of the air chamber 11.
  • a side air outlet 111 is provided on an inner side wall of the air chamber 11.
  • the "high temperature zone” merely indicates that the temperature of the region of the heat sink 1 where the oil passage is disposed is higher than the temperature of the region of the heat sink 1 where the air chamber 11 is provided, and not Refers to the specific temperature value.
  • the oil heater 100 includes a plurality of sets of fins 2, each set of fins 2 including two fins 1, the air chambers 11 of the same side of each set of fins 2
  • the side air inlets 110 are disposed adjacent to each other and the side air outlets 111 are disposed away from each other.
  • the side air inlet 110 and the side air outlet 111 of each air chamber 11 are formed to be oppositely deflected, so that the horizontal cold air outside the oil heater 100 enters the air.
  • the air chamber 11 can flow for a longer period of time, so that sufficient convective heat transfer can be performed in the air chamber 11, the heat dissipation efficiency of the edge of the heat sink 1 can be improved, and the temperature of the edge of the heat sink 1 can be lowered. .
  • the cold air flowing out from the side air outlets 111 enters the high temperature region of the oil passage portion between the adjacent two fins 1, and the convection heat exchange is continued, so that the high temperature region of the oil passage portion can be cooled.
  • the air chambers 11 on the same side of the plurality of fins 1 have the same shape, and the side air inlets 110 and the side air outlets 111 of each air chamber 11 are located in the air chamber. 11 on both sides of the vertical centerline. As shown in FIG. 3, the air chambers 11 on the same side of the fins 1 have the same shape, and the side air outlets 111 and the side air inlets 110 of the plurality of air chambers 11 are disposed on the air chamber 11 as well. The same is true.
  • each air chamber 11 The side air inlet 110 and the side air outlet 111 of each air chamber 11 are formed to be oppositely deflected, so that the horizontal cold air outside the oil heater 100 enters the air chamber 11 and can The flow in the air chamber 11 is longer, and sufficient convective heat transfer can be performed in the air chamber 11, the heat dissipation efficiency of the edge of the fin 1 is improved, and the temperature of the edge of the fin 1 is lowered.
  • the cold air flowing out from the side air outlets 111 enters the high temperature region of the oil passage portion between the adjacent two fins 1, and the convection heat exchange is continued, so that the high temperature region of the oil passage portion can be cooled.
  • the side air inlets 110 and the side air outlets 111 of each air chamber 11 are disposed correspondingly in the inner and outer directions. As shown in FIG. 4, after the horizontal cold air outside the oil heater 100 enters the air chamber 11, the air resistance received during the flow in the air chamber 11 is reduced, and the cold air is in the air chamber 11 The flow rate inside is accelerated. After the convective heat exchange in the air chamber 11 is performed, the cold air flows out from the side air outlet 111 to the high temperature region of the oil passage portion between the adjacent two fins 1 to further perform convection heat exchange.
  • the corresponding arrangement of the side air inlet 110 and the side air outlet 111 strengthens the convective heat transfer of the cold air to the high temperature region of the oil passage portion between the adjacent two heat sinks 1, and improves the heat sink 1
  • the heat dissipation efficiency is advantageous for cooling the edge of the heat sink 1 and the high temperature region of the oil passage portion.
  • each of the air chambers 11 includes a plurality of side air inlets 110 spaced apart in the longitudinal direction of the oil pipe 3, and the side air outlets 111 of each of the air chambers 11 are plural and with a plurality of side portions
  • the air inlets 110 are arranged one by one. Thereby, the flow rate of the cold air into the air chamber 11 is increased, and the cooling efficiency of the horizontal cold air outside the oil heater 100 to the edge of the fin 1 and the high temperature region of the oil passage portion is further improved.
  • the height of the side air inlet 110 is lower than the side air outlet 111 in the vertical direction. the height of. It will be understood that after the cold air enters the air chamber 11, the temperature will gradually rise and naturally flow upward along the air chamber 11 during the flow. Therefore, the height of the side air inlet 110 is lower than the arrangement of the side air outlets 111 to match the flow of cold air in the air chamber 11, facilitating the outflow of cold air into the air chamber 11, at a certain To the extent that the air flow velocity of the inner surface of the air chamber 11 is increased, the heat dissipation capability of the heat sink 1 is enhanced, and the temperature of the edge of the heat sink 1 is lowered.
  • the side air inlet 110 and the side air outlets 111 are respectively formed as rectangular holes that extend in the vertical direction.
  • the structure is simple and the manufacturing is convenient.
  • the inventors found through experiments that when the area of the side air inlet 110 and the side air outlet 111 are equal, and the aspect ratio of the side air inlet 110 and the side air outlet 111 is between 6 and 10, the heat sink The heat dissipation effect of 1 is optimal, and the temperature drop of the edge of the heat sink 1 is most obvious. Therefore, in a preferred example of the present invention, the aspect ratios of the side air inlet 110 and the side air outlet 111 are all in the range of 6-10.
  • the shapes of the side air inlet 110 and the side air outlet 111 are not limited thereto, and the shapes of the side air inlet 110 and the side air outlet 111 may be selected according to actual conditions, for example, side air intake.
  • the port 110 and the side air outlets 111 are respectively formed in a circular shape or an elliptical shape, as long as the heat dissipation capability of the heat sink 1 can be enhanced to some extent, and the temperature of the edge of the heat sink 1 can be lowered.
  • both the side air inlet 110 and the side air outlet 111 are plural, the plurality of side air inlets 110 and the plurality of side air outlets 111 are spaced apart on the heat sink 1 in the vertical direction. .
  • the flow intensity of the inner surface air and the outer surface air of the fin 1 can be further increased, the heat dissipation efficiency of the edge of the fin 1 can be improved, and the temperature at the edge of the fin 1 can be lowered.
  • the vertical direction refers to the direction perpendicular to the paper surface in FIGS. 1 to 4.
  • the side air outlets 111 of each air chamber 11 are two and are distributed on both sides of the portion of the heat sink 1 defining the oil passage. It can be seen that between each adjacent two fins 1, two cold air flows into the high temperature region of the oil passage portion through the side air outlet 111 of the different air chambers 11, respectively, and convective heat exchange is performed. Thereby, the flow of cold air entering the high temperature zone of the oil passage passage is ensured, and the heat dissipation unevenness of the different heat sinks 1 of the oil heater 100 is also avoided, and the reliability of the operation of the oil heater 100 is ensured.
  • an oil heater 100 includes two oil pipes 3 and ten fins 1.
  • the two oil pipes 3 are spaced apart in the up and down direction. Two ends of each fin 1 are respectively disposed on two oil pipes 3, and each fin 1 is provided with an oil passage communicating with two oil pipes 3, and both sides of each fin 1 are provided with oil.
  • the air chambers 11 spaced apart by the passages are in contact with the air chambers 11 on the same side of the adjacent two fins 1.
  • Each of the air chambers 11 includes a top air outlet provided at the top of the air chamber 11, and two of the lengths of the oil pipe 3
  • the side air inlets 110 are spaced apart and two side air outlets 111 are distributed on both sides of the portion of the heat sink 1 defining the oil passage.
  • the two side air inlets 110 are distributed on both sides of the center line of the air chamber 11 extending in the inner and outer directions.
  • the two side air outlets 111 of each of the air chambers 11 and the two side air inlets 110 are disposed in one-to-one correspondence in the inner and outer directions.
  • the height of the side air inlet 110 is lower than the height of the side air outlet 111.
  • the side air inlet 110 and the side air outlet 111 have the same area, and are formed as rectangular holes extending in the vertical direction, and the aspect ratio ranges from 6 to 10.

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Abstract

油汀取暖器(100)，包括：两个油管(3)，两个油管(3)在上下方向上间隔分布；多个散热片(1)，每个散热片(1)的两端分别设在两个油管(3)上，每个散热片(1)内设有与两个油管(3)连通的油路通道，每个散热片(1)的至少一侧边缘设有与油路通道间隔的空气腔室(11)，空气腔室(11)具有进气口和设在空气腔室(11)顶部的顶部出气口，相邻的两个散热片(1)的位于同一侧的空气腔室(11)接触。

Description

油汀取暖器 技术领域
本发明涉及生活电器的技术领域，尤其涉及一种油汀取暖器。
背景技术
目前的油汀取暖器的工作原理是使用电加热棒来加热金属腔体内的导热油，然后高温的导热油通过金属腔体及腔体上的散热片向周围环境空气传热以达到用户取暖目的。一般地，金属腔体和散热片的温度越高，越有利于向环境空气散热。
相关技术中的油汀取暖器的散热片的边缘一般留有一个很薄的空气腔室，在空气腔室上每隔一定距离设计了通孔，空气由通孔进入空气腔室，由于空气的导热系数远低于金属(一般为不锈钢)导热系数，所以相关技术中的油汀取暖器能达到使散热片最边缘处隔绝一部分热量的目的。但是油汀取暖器单纯依靠空气腔室内的空气隔热设计，并不能充分的冷却散热片的边缘，用户使用过程中存在烫伤的危险。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种油汀取暖器，能够增大散热片的边缘的散热面积，增加散热片的内表面空气的流动强度，降低散热片的边缘的温度，强化散热片的散热能力，避免用户使用油汀取暖器过程中被烫伤的危险。
根据本发明实施例的油汀取暖器，包括：两个油管，所述两个油管在上下方向上间隔分布；多个散热片，每个所述散热片的两端分别设在所述两个油管上，每个所述散热片内设有与所述两个油管连通的油路通道，每个所述散热片的至少一侧边缘设有与所述油路通道间隔的空气腔室，所述空气腔室具有进气口和设在所述空气腔室顶部的顶部出气口，相邻的两个所述散热片的位于同一侧的所述空气腔室接触。
根据本发明实施例的油汀取暖器，通过在散热片的边缘设置具有进气口和顶部出气口的空气腔室，并且相邻的两个散热片的位于同一侧的空气腔室接触。进而，增大了散热片的边缘的散热面积，增加了散热片的内表面空气和外表面空气的流动强度，降低了散热片的边缘的温度，强化了散热片的散热能力，避免了用户使用油汀取暖器过程中被烫伤的危险。
优选地，每个所述散热片的两侧边缘均设有所述空气腔室，位于同一侧的相邻的所述空气腔室相互接触。
优选地，所述油汀取暖器还包括用于检测导热油温度的双金属温控元件，当所述导热油的温度达到用户设定的温度时切断电源。
根据本发明的一些实施例，所述进气口包括设在所述空气腔室侧部的侧部进气口，所述空气腔室的内侧壁上设有侧部出气口。
可选地，所述油汀取暖器包括多组散热片组，每组所述散热片组包括两个所述散热片，每组所述散热片组的位于同一侧的所述空气腔室的侧部进气口邻近彼此设置且侧部出气口远离彼此设置。
可选地，所述多个散热片的位于同一侧的所述空气腔室的形状相同，每个所述空气腔室的所述侧部进气口和所述侧部出气口位于所述空气腔室的竖直中心线的两侧。
可选地，在内外方向上，每个所述空气腔室的所述侧部进气口和所述侧部出气口对应设置。
具体地，每个所述空气腔室包括多个在所述油管的长度方向上间隔分布的所述侧部进气口，每个所述空气腔室的所述侧部出气口为多个且与多个所述侧部进气口一一对应设置。
进一步地，在竖直方向上，所述侧部进气口的高度低于所述侧部出气口的高度。
可选地，所述侧部进气口和所述侧部出气口分别形成为在竖直方向上延伸的长方形孔。
具体地，所述侧部进气口和所述侧部出气口的长宽比的取值范围均为6-10。
具体地，所述侧部进气口和所述侧部出气口分别为多个，多个所述侧部进气口和多个所述侧部出气口在所述散热片上沿竖直方向间隔分布。
可选地，每个所述空气腔室的所述侧部出气口为两个且分布在所述散热片的限定出所述油路通道的部分的两侧。
附图说明
图1是根据本发明实施例的油汀取暖器的俯视图；
图2是根据本发明实施例的油汀取暖器中的散热片的局部示意图；
图3是根据本发明另一些实施例的油汀取暖器中的散热片的的局部示意图；
图4是根据本发明再一些实施例的油汀取暖器中的散热片的的局部示意图；
图5是根据本发明实施例的散热片和相关技术的散热片的边缘的温度分布曲线比较图；
图6是根据本发明实施例的油汀取暖器与相关技术的油汀取暖器的散热功率比较图。
附图标记：
油汀取暖器100；
散热片1；空气腔室11；侧部进气口110；侧部出气口111；散热片组2；
油管3。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“长度”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面参考图1-图6描述根据本发明实施例的油汀取暖器100。图2-图4中的箭头指的是冷空气的流动方向。
如图1-图4所示，根据本发明实施例的油汀取暖器100，包括：两个油管3和多个散热片1。
两个油管3在上下方向上间隔分布。每个散热片1的两端分别设在两个油管3上，每个散热片1内设有与两个油管3连通的油路通道(图未示出)，也就是说，两个油管3通过多个散热片1的油路通道连通以形成油循环回路。每个散热片1的至少一侧边缘设有与油路通道间隔的空气腔室11，空气腔室11具有进气口和设在空气腔室11顶部的顶部出气口(图未示出)，相邻的两个散热片1的位于同一侧的空气腔室11接触。优选地，每个散热片1的两侧边缘均设有空气腔室11，位于同一侧的相邻的空气腔室11均接触。从而使油汀取暖器100的散热片1的边缘的空气腔室11的截面积达到最大，进而增大了散热片1的边缘的散热面积，增大了冷空气在空气腔室11内停留的时间，有利于空气腔室11内部的对流换热，提高散热片1的边缘的散热效率，降低散热片1的边缘的温度。
可以理解的是，油汀取暖器100还包括设在位于下方的油管3中的加热棒以对油管3内的导热油进行加热。优选地，油汀取暖器100上安装有双金属温控元件，当导热油的温度达 到用户设定的温度时，温控元件会自动断开电源。从而提高了油汀取暖器100的安全可靠性。
当油汀取暖器100接通电源后，位于下方的油管3内的导热油被加热棒加热，然后高温的导热油通过多个散热片1内的油路通道上升到位于上方的油管3中，形成油路循环，油汀取暖器100通过两个油管3和散热片1的周壁表面将导热油的热量辐射出去，从而加热周围的空间环境，被空气冷却的导热油下降到位于下方的油管3中又被加热棒加热，开始新的循环。
油汀取暖器100外部的冷空气通过空气腔室11的进气口进入到空气腔室11的内部，并通过顶部出气口流出，也就是说，散热片1的边缘的空气腔室11中形成空气流动通道，在空气流动的过程中，会对散热片1的边缘进行散热，从而降低散热片1的边缘的温度。
根据本发明实施例的油汀取暖器100通过在散热片1的边缘设置空气腔室11，与相关技术的油汀取暖器相比，本发明实施例的油汀取暖器100的散热片1的边缘的空气间隙扩大，从而可以增大散热片1的边缘处的散热面积，有利于散热片1的边缘处的散热，降低散热片1的最边缘处的温度。
另外，相邻的两个散热片1的位于同一侧的空气腔室11接触，从而使油汀取暖器100的散热片1的边缘的空气腔室11的截面积达到最大，进而增大了散热片1的边缘的散热面积，增大了冷空气在空气腔室11内停留的时间，有利于空气腔室11内部的对流换热，提高散热片1的边缘的散热效率，降低散热片1的边缘的温度。
发明人经过大量的实验发现，如图5-图6所示，本发明实施例的油汀取暖器100与相关技术的油汀取暖器相比，散热片1的边缘温度已降低至用户安全使用范围，降温幅度达到50％。散热功率提高27％。
根据本发明实施例的油汀取暖器100，通过在散热片1的边缘设置具有进气口和顶部出气口的空气腔室11，并且相邻的两个散热片1的位于同一侧的空气腔室11接触。进而，增大了散热片1的边缘的散热面积，增加了散热片1的空气腔室11内表面空气的流动强度，降低了散热片1的边缘的温度，强化了散热片1的散热能力，避免了用户使用油汀取暖器100过程中被烫伤的危险。
根据本发明的一些实施例，进气口包括设在空气腔室11侧部的侧部进气口110，空气腔室11的内侧壁上设有侧部出气口111。从而可以在空气腔室11内部形成水平方向的由外至内的空气流动通道，增大了进入到空气腔室11内的冷空气流量。油汀取暖器100外侧的冷空气通过空气腔室11的侧部进气口110进入到空气腔室11内，并沿着空气腔室11的内侧壁上的侧部出气口111流出，将空气腔室11内的热量带走。从侧部出气口111流出的冷空气就进入到相邻的两个散热片1之间的油路通道部分的高温区，继续进行对流换热，从而冷却了散热片1的边缘和油路通道部分的高温区。
需要进行说明的是，在本发明的描述中，“高温区”只是表示散热片1的设置油路通道的区域的温度高于散热片1的设置空气腔室11的区域的温度，而不特指具体的温度值。
根据本发明的一些实施例，油汀取暖器100包括多组散热片组2，每组散热片组2包括两个散热片1，每组散热片组2的位于同一侧的空气腔室11的侧部进气口110邻近彼此设置且侧部出气口111远离彼此设置。如图2所示，每个空气腔室11的侧部进气口110和侧部出气口111形成为对侧偏斜设置，进而使得油汀取暖器100外侧的水平方向的冷空气进入到空气腔室11后，能够在空气腔室11流动的时间更长，进而可以在空气腔室11内进行充分的对流换热，提高散热片1的边缘的散热效率，降低散热片1的边缘的温度。从侧部出气口111流出的冷空气就会进入到相邻的两个散热片1之间的油路通道部分的高温区，继续进行对流换热，从而能够冷却油路通道部分的高温区。
根据本发明的另一些实施例，多个散热片1的位于同一侧的空气腔室11的形状相同，每个空气腔室11的侧部进气口110和侧部出气口111位于空气腔室11的竖直中心线的两侧。如图3所示，散热片1位于同一侧的空气腔室11的形状相同，多个空气腔室11的侧部出气口111和侧部进气口110设置在空气腔室11上的位置也分别相同。每个空气腔室11的侧部进气口110和侧部出气口111形成为对侧偏斜设置，进而使得油汀取暖器100外侧的水平方向的冷空气进入到空气腔室11后，能够在空气腔室11内流动的时间更长，进而可以在空气腔室11内进行充分的对流换热，提高散热片1的边缘的散热效率，降低散热片1的边缘的温度。从侧部出气口111流出的冷空气就会进入到相邻的两个散热片1之间的油路通道部分的高温区，继续进行对流换热，从而能够冷却油路通道部分的高温区。
根据本发明的再一些实施例，在内外方向上，每个空气腔室11的侧部进气口110和侧部出气口111对应设置。如图4所示，油汀取暖器100外侧的水平方向的冷空气进入空气腔室11后，在空气腔室11内流动过程中受到的空气阻力会减小，进而冷空气在空气腔室11内的流动速度加快。这样冷空气在空气腔室11内对流换热后，会快速地从侧部出气口111流出至相邻的两个散热片1之间的油路通道部分的高温区，进一步进行对流换热。侧部进气口110和侧部出气口111的对应设置，强化了冷空气对相邻的两个散热片1之间的油路通道部分的高温区的对流换热，提高了散热片1的散热效率，有利于冷却散热片1的边缘和油路通道部分的高温区。
进一步地，每个空气腔室11包括多个在油管3的长度方向上间隔分布的侧部进气口110，每个空气腔室11的侧部出气口111为多个且与多个侧部进气口110一一对应设置。从而增大了冷空气进入到空气腔室11内的流量，进一步地提高油汀取暖器100外侧的水平方向的冷空气对散热片1的边缘和油路通道部分的高温区的冷却效率。
根据本发明的一些实施例，在竖直方向上，侧部进气口110的高度低于侧部出气口111 的高度。可以理解的是，冷空气进入到空气腔室11内后在流动过程中，温度会逐渐升高并沿着空气腔室11自然地向上流动。从而，侧部进气口110的高度低于侧部出气口111的设置配合了冷空气在空气腔室11内的流动规律，方便了进入到空气腔室11内的冷空气的流出，在一定程度上增大了空气腔室11内表面的空气流动速度，强化了散热片1的散热能力，降低了散热片1的边缘的温度。
可选地，侧部进气口110和侧部出气口111分别形成为在竖直方向上延伸的长方形孔。从而结构简单，制造方便。发明人通过实验发现，当侧部进气口110与侧部出气口111的面积大小相等，侧部进气口110和侧部出气口111的长宽比在6-10之间时，散热片1的散热效果最优，散热片1的边缘的温度下降最明显。因此，在本发明的优选示例中，侧部进气口110和侧部出气口111的长宽比的取值范围均为：6-10。当然可以理解的是，侧部进气口110和侧部出气口111的形状不限于此，还可以根据实际情况选择侧部进气口110和侧部出气口111的形状，例如侧部进气口110和侧部出气口111分别形成为圆形或椭圆形，只要能够在一定程度上强化散热片1的散热能力，降低散热片1的边缘的温度即可。
可选地，当侧部进气口110和侧部出气口111均为多个时，多个侧部进气口110和多个侧部出气口111在散热片1上沿竖直方向间隔分布。从而能够进一步地增加散热片1的内表面空气和外表面空气的流动强度，提高散热片1的边缘的散热效率，降低散热片1的边缘处的温度。此处需要说明的是，竖直方向指得是在图1-图4中垂直于纸面的方向。
可选地，每个空气腔室11的侧部出气口111为两个且分布在散热片1的限定出油路通道的部分的两侧。由此可知，每相邻的两个散热片1之间都会有两股冷空气分别通过不同的空气腔室11的侧部出气口111流入油路通道部分的高温区，并进行对流换热。从而保证了进入到油路通道部分高温区的冷空气流量，同时也避免了油汀取暖器100的不同散热片1的散热不均匀问题，保证了油汀取暖器100工作的可靠性。
下面参考图1和图4对根据发明一个具体实施例的油汀取暖器100结构进行详细说明。但是需要说明的是，下述的说明仅具有示例性，普通技术人员在阅读了本发明的下述技术方案之后，显然可以对其中的技术方案或者部分技术特征进行组合或者替换、修改，这也落入本发明所要求的保护范围之内。
如图1和图4所示，根据本发明实施例的油汀取暖器100，包括：两个油管3和十个散热片1。
两个油管3在上下方向上间隔分布。每个散热片1的两端分别设在两个油管3上，每个散热片1内设有与两个油管3连通的油路通道，每个散热片1的两侧边缘均设有与油路通道间隔的空气腔室11，相邻的两个散热片1的位于同一侧的空气腔室11接触。
每个空气腔室11包括设在空气腔室11顶部的顶部出气口、两个在油管3的长度方向上 间隔分布的侧部进气口110和两个分布在散热片1的限定出油路通道的部分的两侧的侧部出气口111。两个侧部进气口110分布在空气腔室11的在内外方向上延伸的中心线的两侧。每个空气腔室11的两个侧部出气口111和两个侧部进气口110在内外方向上一一对应设置。
在竖直方向上，侧部进气口110的高度低于侧部出气口111的高度。侧部进气口110和侧部出气口111的面积相等，都形成为在竖直方向上延伸的长方形孔，长宽比的取值范围均为：6-10。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (13)

  1. 一种油汀取暖器，其特征在于，包括：
    两个油管，所述两个油管在上下方向上间隔分布；
    多个散热片，每个所述散热片的两端分别设在所述两个油管上，每个所述散热片内设有与所述两个油管连通的油路通道，每个所述散热片的至少一侧边缘设有与所述油路通道间隔的空气腔室，所述空气腔室具有进气口和设在所述空气腔室顶部的顶部出气口，相邻的两个所述散热片的位于同一侧的所述空气腔室接触。
  2. 根据权利要求1所述的油汀取暖器，其特征在于，每个所述散热片的两侧边缘均设有所述空气腔室，位于同一侧的相邻的所述空气腔室相互接触。
  3. 根据权利要求1-2中任一项所述的油汀取暖器，其特征在于，还包括用于检测导热油温度的双金属温控元件，当所述导热油的温度达到用户设定的温度时切断电源。
  4. 根据权利要求1-3中任一项所述的油汀取暖器，其特征在于，所述进气口包括设在所述空气腔室侧部的侧部进气口，所述空气腔室的内侧壁上设有侧部出气口。
  5. 根据权利要求4所述的油汀取暖器，其特征在于，所述油汀取暖器包括多组散热片组，每组所述散热片组包括两个所述散热片，每组所述散热片组的位于同一侧的所述空气腔室的侧部进气口邻近彼此设置且侧部出气口远离彼此设置。
  6. 根据权利要求4所述的油汀取暖器，其特征在于，所述多个散热片的位于同一侧的所述空气腔室的形状相同，每个所述空气腔室的所述侧部进气口和所述侧部出气口位于所述空气腔室的竖直中心线的两侧。
  7. 根据权利要求4所述的油汀取暖器，其特征在于，在内外方向上，每个所述空气腔室的所述侧部进气口和所述侧部出气口对应设置。
  8. 根据权利要求7所述的油汀取暖器，其特征在于，每个所述空气腔室包括多个在所述油管的长度方向上间隔分布的所述侧部进气口，每个所述空气腔室的所述侧部出气口为多个且与多个所述侧部进气口一一对应设置。
  9. 根据权利要求4-8中任一项所述的油汀取暖器，其特征在于，在竖直方向上，所述侧部进气口的高度低于所述侧部出气口的高度。
  10. 根据权利要求4所述的油汀取暖器，其特征在于，所述侧部进气口和所述侧部出气口分别形成为在竖直方向上延伸的长方形孔。
  11. 根据权利要求10所述的油汀取暖器，其特征在于，所述侧部进气口和所述侧部出气口的长宽比的取值范围均为6-10。
  12. 根据权利要求4所述的油汀取暖器，所述侧部进气口和所述侧部出气口分别为多个， 多个所述侧部进气口和多个所述侧部出气口在所述散热片上沿竖直方向间隔分布。
  13. 根据权利要求4所述的油汀取暖器，其特征在于，每个所述空气腔室的所述侧部出气口为两个且分布在所述散热片的限定出所述油路通道的部分的两侧。
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CN109237596A (zh) * 2018-09-04 2019-01-18 珠海格力电器股份有限公司 一种取暖器
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CN118935984A (zh) * 2024-10-11 2024-11-12 江苏奥神新材料股份有限公司 一种底部散热分区控制的聚酰亚胺纤维烘干机

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CN206683040U (zh) * 2017-03-28 2017-11-28 广东美的环境电器制造有限公司 散热组件及电热油汀
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