WO2021139369A1 - 散热片和取暖器 - Google Patents

散热片和取暖器 Download PDF

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WO2021139369A1
WO2021139369A1 PCT/CN2020/126058 CN2020126058W WO2021139369A1 WO 2021139369 A1 WO2021139369 A1 WO 2021139369A1 CN 2020126058 W CN2020126058 W CN 2020126058W WO 2021139369 A1 WO2021139369 A1 WO 2021139369A1
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heat sink
oil passage
lower oil
passage
upper oil
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PCT/CN2020/126058
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English (en)
French (fr)
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衷卫健
廖泓斌
张毅
白相星
唐爱红
陈影炙
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珠海格力电器股份有限公司
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Publication of WO2021139369A1 publication Critical patent/WO2021139369A1/zh

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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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
    • 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

Definitions

  • the present disclosure relates to the field of household appliances, in particular to a heat sink and a heater.
  • the electric oil heater is mainly composed of radiating fins.
  • the radiating fins are provided with an oil bag and an oil circuit connected between the upper and lower oil bags.
  • the heat generated by the heater is mainly quickly transferred through the oil circuit to provide heating for users. Due to the fact that the oil circuit will continue to diffuse heat outward during the transmission process, there is the highest temperature position on the heat sink. By detecting the temperature rise of the edge corresponding to the highest temperature position, it is judged whether the temperature rise of the heater meets the standard. For electric oil heaters, if the temperature rises too high during the heating process, on the one hand, it will bring safety risks to use, and on the other hand, it will also adversely affect the service life of the heat sink.
  • a heat sink includes a heat sink body, the heat sink body is provided with an upper oil bag, a lower oil bag, an upper oil passage and a lower oil passage, the lower oil passage is multiple, the upper oil passage One end of the passage is in communication with the upper oil bag, the other end of the upper oil passage is in communication with each of the lower oil passages, and each of the lower oil passages is in communication with the lower oil bag.
  • the passage is located in the middle of the heat sink body in the width direction of the heat sink body, and the cross-sectional area of the upper oil passage is smaller than the sum of the cross-sectional areas of the multiple lower oil passages.
  • the above solution provides a heat sink, which utilizes the upper oil passage and the lower oil passage to realize the conduction between the upper oil bag and the lower oil bag.
  • the upper oil passage is located in the middle of the heat sink body in the width direction of the heat sink body, and there are multiple lower oil passages, and the cross-sectional area of the upper oil passage is smaller than a plurality of lower oil passages.
  • the sum of the cross-sectional area of the lower oil passage Therefore, on the one hand, the heat dissipation efficiency of the upper oil passage is slower than that of the lower oil passage, and on the other hand, the upper oil passage is farther from the edge of the heat sink body. Therefore, the temperature rise of the upper part of the heat sink is reduced, and the temperature rise of the higher temperature position on the heat sink is reduced, and the risk of the temperature rise of the heat sink exceeding the standard is reduced.
  • a plurality of the lower oil passages are evenly spaced in the width direction of the heat sink body, and the lower oil passages on both sides are arranged at the edge positions of the heat sink body.
  • the cross-sectional area of the lower oil passage located in the middle of the heat sink body is larger than the cross-sectional area of the lower oil passage located on both sides.
  • the heat sink further includes a temperature limiter, the temperature limiter is arranged between two adjacent lower oil passages, and the temperature limiter is located close to the lower oil passage One end of the upper oil passage.
  • the upper oil passage is provided along the length direction of the heat sink body, and the lower oil passage is provided along the length direction of the heat sink body.
  • the length of the upper oil passage is equal to the length of the lower oil passage.
  • the heat sink further includes an auxiliary oil passage, and the auxiliary oil passage communicates between the adjacent lower oil passages.
  • the angle between the auxiliary oil passage and the lower oil passage communicating with the auxiliary oil passage is less than 90°.
  • the road channels are symmetrically distributed with the longitudinal centerline member.
  • a heater includes the above-mentioned radiating fin, the radiating fin is multiple, and each radiating fin is arranged side by side.
  • the above solution provides a heater, which can reduce the temperature rise at the highest temperature position of the heat sink on the heater by using the heat sink described in any of the above embodiments, thereby reducing the risk of excessive temperature rise.
  • Figure 1 is a schematic diagram of the structure of the heater according to this embodiment
  • FIG 2 is a front view of the heat sink in the heater shown in Figure 1;
  • Figure 3 is a cross-sectional view of the upper part of the heat sink shown in Figure 2;
  • Fig. 4 is a cross-sectional view of the lower part of the heat sink shown in Fig. 2.
  • Heater 11. Heat sink; 111, heat sink body; 112, upper oil bag; 113, lower oil bag; 114, upper oil passage; 115, lower oil passage; 116, temperature limiter.
  • a heater 10 is provided, which is configured to provide heat for indoor heating.
  • the heater 10 is provided with a plurality of radiating fins 11, each of the radiating fins 11 is arranged side by side, the radiating fin 11 is provided with an oil passage, and the hot oil in the oil passage is used as a heat medium to supply heat user.
  • the highest temperature position on the heat sink 11 of the heater 10 is below the oiling bag 112 and close to the oiling bag 112. However, if the temperature of the heater 10 rises too high during use, the heater 10 will burn out, and it will bring safety hazards. Based on this, in this case, the temperature rise at the highest temperature position on the heat sink 11 is reduced, thereby reducing the temperature rise of the entire heat sink 11, thereby reducing the risk of excessive temperature rise.
  • the heat sink 11 includes a heat sink body 111, and the heat sink body 111 is provided with an upper oil bag 112, a lower oil bag 113, an upper oil passage 114, and The lower oil passage 115, the upper oil passage 114 communicates with the lower oil passage 115 to form the oil passage, and the oil passage communicates between the upper oil bag 112 and the lower oil bag 113 between.
  • each of the lower oil passages 115 communicates with the lower oil bag 113. Based on the fact that a plurality of lower oil passages 115 are provided in the lower half of the heat sink 11, and the cross-sectional area of the upper oil passage 114 is smaller than the sum of the cross-sectional areas of the lower oil passages 115, The heat dissipation efficiency of the lower half of the heat sink 11 is improved. In turn, the heat dissipation efficiency of the upper half of the heat sink 11 is reduced.
  • the upper oil passage 114 is one, that is, compared to the multiple lower oil passages 115 located in the lower half of the heat sink 11, the heat dissipation
  • the upper oil passage 114 provided in the upper half of the fin 11 can circulate less hot oil, so that the heat dissipation efficiency of the upper half of the heat sink 11 is lower.
  • the upper oil passage 114 is located in the middle of the heat sink body 111 in the width direction of the heat sink body 111. That is, compared to the distance between the lower oil passage 115 of the lower half of the heat sink 11 and the edge of the heat sink body 111, the upper oil passage 114 is farther from the edge of the heat sink body 111. Thereby, the temperature rise at the upper edge of the heat sink 11 is reduced, and the temperature rise at a higher temperature position on the heat sink 11 is reduced, and the risk of the temperature rise of the heat sink 11 exceeding the standard is reduced.
  • the three lower oil passages 115 are all in communication with the upper oil passage 114.
  • the three lower oil passages 115 may be arranged in parallel with each other.
  • the hot oil stays in the lower oil passage 115 for a longer time, which further improves the heat dissipation efficiency of the lower oil passage 115 in the upper and lower half of the heat sink 11.
  • the upper oil passage 114 is located on the longitudinal centerline of the heat sink body 111.
  • the three lower oil passages 115 are symmetrically distributed along the longitudinal center line. That is, the upper oil passage 114 is as far as possible from the edge of the heat sink body 111. Reduce the temperature of the edge of the heat sink body 111.
  • the three lower oil passages 115 with the longitudinal centerline symmetrical can transfer heat out more evenly.
  • a plurality of the lower oil passages 115 are evenly spaced in the width direction of the heat sink body 111, and are located at two intervals.
  • the lower oil passage 115 on the side is provided at the edge of the heat sink body 111. Therefore, the heat dissipation efficiency of the oil passage in the lower half of the heat sink 11 is improved as much as possible.
  • the cross-sectional area of the lower oil passage 115 located in the middle of the heat sink body 111 is larger than that located on both sides.
  • the heat sink 11 further includes a temperature limiter 116, and the temperature limiter 116 is arranged on two adjacent lower oils. And the temperature limiter 116 is located at an end of the lower oil passage 115 close to the upper oil passage 114.
  • the heat transfer efficiency of the lower half of the oil passage in the heat sink 11 is faster, so the The temperature limiter 116 is arranged between the adjacent lower oil passages 115, so as to achieve the purpose of accurately limiting the temperature.
  • the upper oil passage 114 is arranged along the length direction of the heat sink body 111.
  • the lower oil passage 115 is arranged along the length direction of the heat sink body 111. This enables rapid transmission of hot oil between the upper oil pack 112 and the lower oil pack 113.
  • the length of the upper oil passage 114 is equal to the length of the lower oil passage 115.
  • the heat sink 11 is equally divided into upper and lower parts to fully improve the heat dissipation efficiency of the lower part of the heat sink 11 and reduce the heat dissipation efficiency of the upper part of the heat sink 11.
  • the cross-sectional area of the upper oil passage 114 is smaller than the sum of the cross-sectional areas of the lower oil passages 115, the hot oil stays in the lower half of the radiating fin 11 for a little longer time, which is a familiar way to diffuse heat. Faster and more.
  • the heat sink 11 further includes an auxiliary oil passage, and the auxiliary oil passage communicates between the adjacent lower oil passages 115.
  • the transmission efficiency of the hot oil in the lower oil passage 115 is improved.
  • the angle between the auxiliary oil passage and the lower oil passage 115 communicating with the auxiliary oil passage is less than 90°. As a result, the hot oil in the lower oil passage 115 can be more quickly transferred and circulated in the auxiliary oil passage.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

一种散热片（11）和取暖器（10），其中散热片（11）包括散热片本体（111），所述散热片本体（111）设有上油包（112）、下油包（113）、上油路通道（114）和下油路通道（115），所述下油路通道（115）为多个，所述上油路通道（114）一端与所述上油包（112）连通，所述上油路通道（114）的另一端与各个所述下油路通道（115）均连通，各个所述下油路通道（115）均与所述下油包（113）连通，所述上油路通道（114）在所述散热片本体（111）的宽度方向上位于所述散热片本体（111）的中部。一方面相对于下油路通道（115），所述上油路通道（114）的散热效率慢，另一方面所述上油路通道（114）距离所述散热片本体（111）的棱边较远。从而降低所述散热片（11）上部的温升，进而降低所述散热片（11）上温度较高位置的温升，降低所述散热片（11）温升超标的风险。

Description

散热片和取暖器
本公开要求于2020年01月06日提交中国专利局、申请号为202010008365.4、发明名称为“散热片和取暖器”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及生活电器领域，特别是涉及一种散热片和取暖器。
背景技术
电热油汀取暖器主要由散热片组成，散热片上设有油包和连通在上下油包之间的油路，取暖器所产生的热量主要通过所述油路快速传递出来，为使用者供暖。基于油路在传输的过程中会不断向外扩散热量，因此散热片上存在温度最高位置。通过检测温度最高位置所对应的棱边温升情况，来判断取暖器温升是否符合标准。对于电热油汀取暖器而言，在供暖的过程中若温升过高，一方面将带来使用安全风险，另一方面也会对散热片的使用寿命产生不利影响。
发明内容
基于此，有必要提供一种散热片和取暖器，以降低温升超标的风险。
一种散热片，包括散热片本体，所述散热片本体设有上油包、下油包、上油路通道和下油路通道，所述下油路通道为多个，所述上油路通道一端与所述上油包连通，所述上油路通道的另一端与各个所述下油路通道均连通，各个所述下油路通道均与所述下油包连通，所述上油路通道在所述散热片本体的宽度方向上位于所述散热片本体的中部，所述上油路通道的横截面面积小于多个所述下油路通道的横截面面积之和。
上述方案提供了一种散热片，利用所述上油路通道和所述下油路通道实现所述上油包和下油包之间的导通。而所述上油路通道在所述散热片本体的宽度方向上位于所述散热片本体的中部，而所述下油路通道为多个，所述上油路通道的横截面面积小于多个所述下油路通道的横截面面积之和。从而一方面相对于下油路通道，所述上油路通道的散热效率慢，另一方面所述上油路通道距离所述散热片本体的棱边较远。从而降低所述散热片上部的温升，进而降低所述散热片上温度较高位置的温升，降低所述散热片温升超标的风险。
在其中一个实施例中，多个所述下油路通道在所述散热片本体的宽度方向上均匀间隔分布，且位于两侧的下油路通道设置在所述散热片本体的边缘位置。
在其中一个实施例中，位于所述散热片本体中部的下油路通道的横截面面积大于位于两侧的下油路通道的横截面面积。
在其中一个实施例中，所述散热片还包括限温器，所述限温器设置在相邻的两个下油路通道之间，且所述限温器位于所述下油路通道靠近所述上油路通道的一端。
在其中一个实施例中，所述上油路通道沿所述散热片本体的长度方向设置，所述下油路通道沿所述散热片本体的长度方向设置。
在其中一个实施例中，所述上油路通道的长度与所述下油路通道的长度相等。
在其中一个实施例中，所述散热片还包括辅助油路通道，所述辅助油路通道连通在相邻的所述下油路通道之间。
在其中一个实施例中，所述辅助油路通道通同与其连通的所述下油路通道之间的夹角小于90°。
在其中一个实施例中，所述上油路通道为一个，所述下油路通道为三个，所述上油路通道位于所述散热片本体的纵向中心线上，三个所述下油路通道以所述纵向中线件对称分布。
一种取暖器，包括上述的散热片，所述散热片为多个，各个散热片并排设置。
上述方案提供了一种取暖器，通过采用上述任一实施例中所述的散热片，以降低所述取暖器上散热片最高温度位置的温升，进而降低温升超标风险。
附图说明
图1为本实施例所述取暖器的结构示意图；
图2为图1所示取暖器中散热片的主视图；
图3为图2所示散热片中上部分的剖视图；
图4为图2所示散热片中下部分的剖视图。
附图标记说明：
10、取暖器；11、散热片；111、散热片本体；112、上油包；113、下油包；114、上油路通道；115、下油路通道；116、限温器。
具体实施方式
为使本公开的上述目的、特征和优点能够更加明显易懂，下面结合附图对本公开的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本公开。但是本公开能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本公开内涵的情况下做类似改进，因此本公开不受下面公开的具体实施的限制。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本公开的技术领域的技术人员通常理解的含义相同。本文中在本公开的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本公开。以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
如图1所示，在一个实施例中提供了一种取暖器10，被设置为室内提供热量供暖。所述取暖器10中设有多个散热片11，各个散热片11并排设置，所述散热片11中设有油路通道，通过所述油路通道中的热油作为热量介质，将热量供给用户。
一般的取暖器10散热片11上温度最高位置为上油包112下方，且靠近所述上油包112的位置。而取暖器10在使用过程中若温升过高将导致取暖器10烧坏，且会带来安全隐患。基于此，本案中通过降低散热片11上温度最高位置处的温升，从而降低整个散热片11的温升，进而降低温升超标风险。
具体地，如图2所示，在一个实施例中，所述散热片11包括散热片本体111，所述散热片本体111设有上油包112、下油包113、上油路通道114和下油路通道115，所述上油路通道114与所述下油路通道115连通后形成所述油路通道，所述油路通道连通在所述上油包112与所述下油包113之间。
在其中一个实施例中，，如图2所示，所述下油路通道115为多个，所述上油路通道114一端与所述上油包112连通，所述上油路通道114的另一端与各个所述下油路通道115均连通。各个所述下油路通道115均与所述下油包113连通。基于在所述散热片11下半部分设置有多个下油路通道115，且所述上油路通道114的横截面面积小于多个所述下油路通道115的横截面面积之和，从而提高了所述散热片11下半部分的散热效率。进而降低所述散热片11上半部分的散热效率。
具体地，在一个实施例中，如图2所示，所述上油路通道114为一个，即相较于位于所述散热片11下半部分的多个下油路通道115，所述散热片11上半部分设置的上油路通道114所能流通的热油较少，使得所述散热片11上半部分的散热效率较低。
而在其中一个实施例中，，所述上油路通道114在所述散热片本体111的宽度方向上位于所述散热片本体111的中部。即，相较于所述散热片11下半部分的下油路通道115距离散热片本体111棱边的距离，所述上油路通道114距离所述散热片本体111的棱边较远。从而降低所述散热片11上棱边处的温升，进而降低所述散热片11上温度较高位置的温升，降低所述散热片11温升超标的风险。
在其中一个实施例中，具体地，如图1、图2和图4所示，在一个实施例中，所述下油路通道115为三个。三个所述下油路通道115均与所述上油路通道114连通。三个所述下油路通道115可以相互之间平行设置。
从而相比较而言，热油在所述下油路通道115中停留的时间较长，进一步 提升所述散热片11上下半部分的下油路通道115的散热效率。
在其中一个实施例中，，如图2至图4所示，所述上油路通道114位于所述散热片本体111的纵向中心线上。三个所述下油路通道115以所述纵向中心线对称分布。即，所述上油路通道114距离所述散热片本体111的棱边距离尽可能远。降低散热片本体111棱边的温度。而已所述纵向中心线对称的三个所述下油路通道115能够更加均匀的将热量传递出去。
在其中一个实施例中，，在一个实施例中，如图2和图4所示，多个所述下油路通道115在所述散热片本体111的宽度方向上均匀间隔分布，且位于两侧的下油路通道115设置在所述散热片本体111的边缘位置。从而尽可能的提高所述散热片11下半部分中油路通道的散热效率。
而且，虽然多个所述下油路通道115在所述散热片本体111的宽度方向上均匀间隔分布，但是位于所述散热片本体111中部的下油路通道115的横截面面积大于位于两侧的下油路通道115的横截面面积。即位于中部的所述下油路通道115的流通量大于位于侧边的油路通道的流通量。较多的热油位于中间的所述下油路通道115中，降低所述散热片本体111棱边处的温升。
在其中一个实施例中，，在一个实施例中，如图1和图2所示，所述散热片11还包括限温器116，所述限温器116设置在相邻的两个下油路通道115之间，且所述限温器116位于所述下油路通道115靠近所述上油路通道114的一端。
通过采用上述任一实施例中所述的上油路通道114和下油路通道115的设置形式，则所述散热片11中下半部分油路通道的传热效率较快，因此将所述限温器116设置在相邻的下油路通道115之间，从而达到准确限温的目的。
在其中一个实施例中，，如图1和图2所示，在一个实施例中，所述上油路通道114沿所述散热片本体111的长度方向设置。所述下油路通道115沿所述散热片本体111的长度方向设置。使得所述上油包112与所述下油包113之间能够快速进行热油的传输。
在其中一个实施例中，，如图1和图2所示，在一个实施例中，所述上油路通道114的长度与所述下油路通道115的长度相等。将所述散热片11等分成上下部分，充分提升所述散热片11下半部分的散热效率，降低所述散热片11上半部分的散热效率。而且，当所述上油路通道114的横截面面积小于各个下油路通道115横截面面积之和时，热油在所述散热片11下半部分中存留的时间稍长，扩散热量的熟路较快且较多。
在其中一个实施例中，，在一个实施例中，所述散热片11还包括辅助油路通道，所述辅助油路通道连通在相邻的所述下油路通道115之间。提升所述下油路通道115中热油的传输效率。
具体地，在一个实施例中，所述辅助油路通道通同与其连通的所述下油路通道115之间的夹角小于90°。从而使得所述下油路通道115中的热油能够更加快捷的在所述辅助油路通道传输循环。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技 术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本公开的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本公开构思的前提下，还可以做出若干变形和改进，这些都属于本公开的保护范围。因此，本公开专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种散热片，包括散热片本体，所述散热片本体设有上油包、下油包、上油路通道和下油路通道，所述下油路通道为多个，所述上油路通道一端与所述上油包连通，所述上油路通道的另一端与各个所述下油路通道均连通，各个所述下油路通道均与所述下油包连通，所述上油路通道在所述散热片本体的宽度方向上位于所述散热片本体的中部，所述上油路通道的横截面面积小于多个所述下油路通道的横截面面积之和。
  2. 根据权利要求1所述的散热片，其中，多个所述下油路通道在所述散热片本体的宽度方向上均匀间隔分布，且位于两侧的下油路通道设置在所述散热片本体的边缘位置。
  3. 根据权利要求2所述的散热片，其中，位于所述散热片本体中部的下油路通道的横截面面积大于位于两侧的下油路通道的横截面面积。
  4. 根据权利要求2所述的散热片，其中，还包括限温器，所述限温器设置在相邻的两个下油路通道之间，且所述限温器位于所述下油路通道靠近所述上油路通道的一端。
  5. 根据权利要求1至4任一项所述的散热片，其中，所述上油路通道沿所述散热片本体的长度方向设置，所述下油路通道沿所述散热片本体的长度方向设置。
  6. 根据权利要求5所述的散热片，其中，所述上油路通道的长度与所述下油路通道的长度相等。
  7. 根据权利要求1至4任一项所述的散热片，其中，还包括辅助油路通道，所述辅助油路通道连通在相邻的所述下油路通道之间。
  8. 根据权利要求7所述的散热片，其中，所述辅助油路通道通同与其连通的所述下油路通道之间的夹角小于90°。
  9. 根据权利要求1至4任一项所述的散热片，其中，所述上油路通道为一个，所述下油路通道为三个，所述上油路通道位于所述散热片本体的纵向中心线上，三个所述下油路通道以所述纵向中心线对称分布。
  10. 一种取暖器，包括权利要求1至9任一项所述的散热片，所述散热片为多个，各个散热片并排设置。
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