WO2022016945A1 - Dissipateur thermique, ailette et dispositif de chauffage - Google Patents

Dissipateur thermique, ailette et dispositif de chauffage Download PDF

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Publication number
WO2022016945A1
WO2022016945A1 PCT/CN2021/090927 CN2021090927W WO2022016945A1 WO 2022016945 A1 WO2022016945 A1 WO 2022016945A1 CN 2021090927 W CN2021090927 W CN 2021090927W WO 2022016945 A1 WO2022016945 A1 WO 2022016945A1
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WO
WIPO (PCT)
Prior art keywords
heat
main body
folded portion
heat sink
matching
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Application number
PCT/CN2021/090927
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English (en)
Chinese (zh)
Inventor
喻辉
白相星
唐爱红
衷卫健
廖泓斌
张毅
Original Assignee
珠海格力电器股份有限公司
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Publication of WO2022016945A1 publication Critical patent/WO2022016945A1/fr

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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
    • 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
    • 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 present disclosure relates to the technical field of heating equipment, and in particular, to a heat sink, a fin and a heater.
  • the oil heater is an electric heater that can store heat, has good heating effect and is convenient for heating.
  • the oil cooler has multiple heat sinks, and there are many oil passages in the heat sink. These oil passages transport the stored oil to various positions of the heat sink, so that the temperature of the oil cooler is evenly distributed in every corner of the heat sink for heating. .
  • the traditional heater can only simply exchange heat with the surrounding air, the heat exchange speed is slow, and the effect of raising the indoor temperature is poor.
  • a heat sink, a fin and a heater capable of rapidly increasing the indoor temperature are provided.
  • a heat sink includes a main body, the main body is used for heat exchange, a first folded portion is arranged on one side of the main body, and the first folded portion is arranged at an angle with the main body, the The first folded portion is provided with a first notch.
  • the above-mentioned heat sink is provided with a first folded portion at the side of the main body, which can increase the strength of the main body, has strong bending resistance, is not easily deformed, and increases the heat exchange area of the main body during heat exchange.
  • the first folded part When installed on the heater, since the first folded part is arranged at an angle with the main body, it can cooperate with the main body to form a pair of air heating channels. The air will rise after exchanging heat with the heat sink, forming a chimney effect in the channel. Speed up the heat exchange and convection of the air.
  • the first folded part is provided with the first gap, the air can enter and exit the channel from the outside of the heat sink, which can increase the air intake or air output of the channel. The speed of heat exchange, so the indoor temperature can be raised faster.
  • a second folded portion is disposed on the other side of the main body, and the first folded portion and the second folded portion are folded toward the same side of the main body;
  • the first folding portion and the second folding portion are respectively folded toward different sides of the main body.
  • the second folded portion is provided with a second notch.
  • a third notch is also formed on the first folded portion, and the first notch and the third notch are along the The length direction of the first folded portion is arranged at intervals.
  • the first notch and the third notch are located at both ends of the first folded portion, respectively.
  • a corner of the first folded portion is a rounded structure.
  • both ends of the main body are respectively provided with a first end flanging and a second end flanging, and the first end flanging and the second end flanging are respectively formed with the Both ends of the first folded portion are connected, and the heights of the first and second end folds relative to the main body are lower than the heights of the first folded portion relative to the main body.
  • the body is provided with a third folded portion, and the third folded portion and the first folded portion are respectively provided on both sides of the same end of the body.
  • a fin comprising a mating sheet and the heat sink according to any one of the above, wherein the mating sheet is connected with the main body and is used to enclose a heat conduction oil passage.
  • the above-mentioned fins can transmit the heat of the heat-conducting oil to the heat-dissipating member and the matching piece through the circulation of the heat-conducting oil, so as to heat the air. Since the side edge of the heat sink is provided with a first folded portion, and the heat sink is connected with the mating piece, the first folded portion can increase the overall strength, improve the bending resistance of the above-mentioned fin, is not easily deformed, and increases the The heat exchange area of the above-mentioned fins during heat exchange. The first folded portion and the main body can form a channel for heating air.
  • the air can enter and exit the channel from the outside of the above-mentioned fins, which can increase the air intake or air output of the channel, and can increase the amount of heat exchanged air and the speed of heat exchange under the action of the chimney effect in the channel. , so the indoor temperature can be raised quickly.
  • the main body is provided with a mounting groove for mounting the matching piece.
  • the heat dissipating member is provided with a first fitting portion
  • the fitting sheet is provided with a second fitting portion
  • the first fitting portion and the second fitting portion are fitted in a concave-convex structure.
  • the upper end of the heat sink and the upper end of the matching piece are used to enclose a first accommodating space, and the lower end of the heat sink and the lower end of the matching piece are used to enclose a second accommodating space,
  • the first accommodating space and the second accommodating space are respectively communicated with the heat transfer oil passage.
  • a cross-sectional area of one end of the heat transfer oil passage close to the second accommodating space is larger than a cross-sectional area of the other end of the heat transfer oil passage.
  • there are at least three heat-conducting oil passages wherein the three heat-conducting oil passages are a first heat-conducting oil passage, a second heat-conducting oil passage and a third heat-conducting oil passage, which are arranged at intervals, respectively.
  • There are at least two matching parts the second matching parts are arranged corresponding to the first matching parts, and one of the first matching parts is located between the first heat transfer oil passage and the second heat transfer oil passage , and the other first matching portion is located between the second heat transfer oil passage and the third heat transfer oil passage.
  • the two first matching portions are located at two ends of the heat dissipation member, respectively.
  • a heater comprising the fins according to any one of the above, the quantity of the fins is at least two, the fins are arranged side by side, and the edges of two adjacent fins are arranged at intervals.
  • the edges of two adjacent fins are arranged at intervals, and the first folded edge on the fins is arranged at an angle relative to the main body, so that a channel can be formed between the two adjacent fins.
  • the air in the channel rises with the increase of temperature, forming a chimney effect.
  • the structure of the first folded edge enables air to enter and exit the channel from the outside of the shim, the air intake or air output of the channel can be increased. Under the action of the chimney effect in the channel, the amount of air for heat exchange and the speed of heat exchange can be increased, so the indoor temperature can be raised quickly.
  • FIG. 1 is a schematic structural diagram of a heat sink according to an embodiment of the disclosure
  • Fig. 2 is the oblique view of the Ting tablet described in the embodiment of the disclosure.
  • Fig. 3 is the assembly schematic diagram of two tin pieces described in the embodiment of the disclosure.
  • FIG. 4 is an assembly schematic diagram of the first folded portion and the third folded portion according to an embodiment of the disclosure.
  • FIG. 5 is a cross-sectional view of the Ting tablet according to an embodiment of the disclosure.
  • Fig. 6 is the exploded schematic diagram of the Ting tablet described in the embodiment of the disclosure.
  • Fig. 7 is the enlarged schematic diagram of A place in Fig. 5;
  • FIG. 8 is a partial structural schematic diagram of a heater according to an embodiment of the present disclosure.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or indirectly through an intermediary between the first and second features get in touch with.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • an embodiment discloses a heat sink 100 , which includes a main body 110 .
  • the main body 110 is used for heat exchange.
  • the folding portion 120 is disposed at an included angle with the main body 110 , and a first notch 121 is formed on the first folding portion 120 .
  • the above-mentioned heat sink 100 is provided with the first folded portion 120 at the side of the main body 110, which can increase the strength of the main body 110, has strong bending resistance, is not easily deformed, and increases the heat exchange area of the main body 110 during heat exchange. .
  • the heat sink 100 when the heat sink 100 is installed on the heater, since the first folded portion 120 is arranged at an angle with the main body 110 , it can cooperate with the main body 110 to enclose a channel 101 for heating air. The air rises after exchanging heat with the heat sink 100 , forming a chimney effect in the channel 101 to speed up the heat exchange and convection of the air.
  • the air can enter and exit the channel 101 from the outside of the heat sink 100, which can increase the air intake or air output of the channel 101, and can increase the heat under the action of the chimney effect.
  • the amount of air exchanged and the speed of heat exchange can increase the indoor temperature faster.
  • the chimney effect refers to the phenomenon in which the air rises along the channel 101, causing the air to strengthen convection. Due to the difference in air density caused by the temperature difference between the air inside and outside the channel 101, a pressure difference is formed, which tends to flow the air outside the channel 101 to form natural ventilation under the action of thermal pressure. The air with high temperature in the channel 101 rises due to its small specific gravity and is discharged from the air outlet at the top of the channel 101.
  • the heat sink 100 When the heat sink 100 is installed on equipment such as a heater, although the top and bottom of the heat sink 100 will be assembled with other parts of the heater, which will affect the amount of air entering and exiting the passage 101, the air can pass through the first folded portion.
  • the first gap 121 provided on the 120 enters and exits the channel 101, so that the chimney effect in the channel 101 is more fully performed, the heat exchange and convection of the air are accelerated, and the indoor temperature is increased.
  • the other side of the main body 110 is provided with a second folding portion 131 , and the first folding portion 120 and the second folding portion 131 are folded toward the same side of the main body 110 . , that is, folded from the main body 110 in the same direction.
  • the first folded portion 120 and the second folded portion 131 By arranging the first folded portion 120 and the second folded portion 131 , the heat dissipation area and the strength of the heat dissipation member 100 can be further improved.
  • the channels 101 enclosed by the first folded portion 120 , the second folded portion 131 and the main body 110 respectively increase the number of the channels 101 , which can further improve the chimney effect, thereby enabling the indoor temperature to increase more quickly.
  • first folding portion 120 and the second folding portion 131 are respectively folded toward different sides of the main body 110 , that is, folded in opposite directions from the main body 110 .
  • a channel 101 can be formed between the heat sink 100 and the adjacent heat sink 100 , and the chimney effect can also be improved to speed up the indoor temperature.
  • the second folded portion 131 is provided with a second notch.
  • the second notch on the second folded portion 131 can also increase the air intake or air output on one side of the second folded portion 131 to further enhance the chimney effect and accelerate the indoor temperature improvement effect.
  • the number of the second notches is one; or the number of the second notches is at least two, and the second notches are arranged along the length direction of the second folded portion 131 .
  • the first folded portion 120 when the first folded portion 120 is provided with the first notch 121 , the first folded portion 120 is further provided with a third notch 122 , and the first notch 121 and the third notch 122 are formed along the first fold.
  • the folding portions 120 are arranged at intervals in the longitudinal direction. At this time, through the first notch 121 and the third notch 122 arranged at intervals along the length direction of the first folded portion 120, the air intake and air output in the channel 101 can also be increased, thereby improving the air amount and effect of heat exchange. Increase the temperature of the room faster.
  • the above-mentioned "length direction” is specifically the vertical direction.
  • the first notch 121 when only the first notch 121 is provided on the first folded portion 120, the first notch 121 may be located at any position on the first folded portion 120;
  • the first folded portion 120 is provided with other notches in addition to the first notches 121 and the third notches 122 , which can also increase the air intake or air output.
  • the first notch 121 and the third notch 122 are located at two ends of the first folded portion 120 , respectively.
  • the corners of the first folded portion 120 are rounded structures. At this time, the user is less likely to be scratched by the first folded portion 120 when the first folded portion 120 is in contact, which improves the safety of use.
  • connection between the first folded portion 120 and the main body 110 is a concave rounded structure, which can increase the strength.
  • the corner of the second folded portion 131 is a rounded structure, and/or the connection between the second folded portion 131 and the main body 110 is a concave rounded structure.
  • two ends of the main body 110 are respectively provided with a first end cuff 111a and a second end cuff 111b, and the first end cuff 111a and the second end cuff 111a 111b is connected to both ends of the first folded portion 120, respectively.
  • the height of the first end flange 111a and the second end flange 111b relative to the main body 110 is lower than the height of the first folding portion 120 relative to the main body.
  • the first end flange 111a and the second end flange 111b can further increase the strength and heat exchange area of the heat sink 100, and the heat sink 100 is not easily deformed no matter what direction the heat sink 100 is bent.
  • the main body 110 is provided with a third folded portion 132 , and the third folded portion 132 and the first folded portion 120 are respectively disposed on the same side of the main body 110 . Fold in two opposite directions. At this time, the same side of the main body 110 is provided with folded parts in two opposite directions, which can further increase the strength and heat exchange area, and at the same time, more channels 101 are formed to enhance the chimney effect.
  • the third folding portion 132 and the first folding portion 120 may be symmetrically disposed on both sides of the main body 110 .
  • an embodiment discloses a fin, including a fitting sheet 200 and the above-mentioned heat sink 100 .
  • the fitting sheet 200 is connected to the main body 110 and is used to enclose a heat transfer oil passage 201 with the main body 110 .
  • the above-mentioned fins can transmit the heat of the heat-conducting oil to the heat-dissipating member 100 and the matching sheet 200 through the circulation of the heat-conducting oil to heat the air.
  • the piece 100 is connected with the mating piece 200, so the first folded portion 120 can increase the overall strength, improve the bending resistance of the sill sheet, not easily deform, and increase the heat exchange area of the sill sheet during heat exchange.
  • the first folding part 120 and the main body 110 can form a channel 101 for heating air. Due to the structure of the heat sink 100, the air can enter and exit the channel 101 from the outside of the fins, which can increase the air intake or air output of the channel 101. Under the action of the chimney effect in the channel 101, the amount of air for heat exchange and the amount of air can be increased. The speed of heat exchange, so the indoor temperature can be raised faster.
  • the width of the fitting sheet 200 is smaller than or equal to the width of the main body 110 ; or a fourth turning portion matching the shape of the first turning portion 120 is provided at the outer edge of the fitting sheet 200 .
  • the fourth folded portion when a fourth folded portion matching the shape of the first folded portion 120 is provided at the outer edge of the fitting sheet 200 , the fourth folded portion will not block the first notch 121 or be blocked by the first folded portion 120 .
  • the lower end of the fourth folded portion is also higher than the lower end of the main body 110;
  • the upper end of the part 120 is lower than the upper end of the main body 110, the upper end of the fourth folding part is also higher than the upper end of the main body 110;
  • the first folding part 120 is provided with the first gap 121, the fourth folding part
  • the folding portion is provided with an opening, and the opening communicates with the first notch 121 .
  • the main body 110 is provided with a mounting groove for mounting the mating piece 200 .
  • the installation grooves can guide and align the installation of the matching piece 200 , so as to facilitate the installation of the matching piece 200 .
  • the main body 110 is provided with a limiting protrusion 112 for enclosing an installation groove, which can be used to guide the installation of the matching piece 200 .
  • the outer edge of the fitting sheet 200 is welded with the main body 110 to ensure that the fitting sheet 200 and the main body 110 are tightly fitted and prevent leakage.
  • the heat sink 100 is provided with a first matching portion 140
  • the matching sheet 200 is provided with a second matching portion 210
  • the first matching portion 140 and the second matching portion 210 Concave-convex structure matching.
  • the assembly of the heat sink 100 and the matching piece 200 can be facilitated, the accuracy of the alignment of the heat sink 100 and the matching piece 200 can be improved, and the heat sink 100 can be prevented from being matched with each other.
  • a relative displacement of the sheet 200 occurs.
  • the first matching portion 140 is a conical protrusion
  • the second matching portion 210 is a pit matched with the first matching portion 140; or the second matching portion 210 is a tapered protrusion, and the first matching portion 140 is a concave protrusion. A pit matched with the second matching portion 210 . All of the above-mentioned effects of convenient assembly and accurate alignment can be achieved.
  • the upper end of the heat sink 100 and the upper end of the matching piece 200 are used to enclose a first accommodating space
  • the lower end of the heat sink 100 and the lower end of the matching piece 200 are used to enclose a second accommodating space
  • the first accommodating space It communicates with the heat transfer oil passages 201 respectively with the second accommodating space.
  • the heat transfer oil can first enter the second accommodating space, and flow through the first accommodating space of the heat transfer oil passage 201 , and transfer heat to the heat sink 100 and the mating piece 200 during the flow of the heat transfer oil.
  • the upper end of the heat sink 100 is provided with a first convex hull 150
  • the lower end of the heat sink 100 is provided with a second convex hull 160
  • the upper end of the matching piece 200 is provided with a third convex hull 220
  • the lower end of the mating piece 200 is provided with a fourth convex hull 230
  • the first protruding hull 150 and the second protruding hull 160 are protruding in a direction away from the mating piece 200
  • the third protruding hull 220 and the fourth convex hull 230 are facing away from the heat dissipation
  • the first protruding hull 150 and the third protruding hull 220 are used to enclose the first accommodating space
  • the second protruding hull 160 and the fourth protruding hull 230 are used to enclose the above-mentioned second accommodating space.
  • the cross-sectional area of one end of the heat transfer oil passage 201 close to the second accommodating space is larger than the cross-sectional area of the other end of the heat transfer oil passage 201 .
  • the cross-sectional area of the heat-conducting oil passage 201 is larger, the heat-conducting oil can pass through faster.
  • the second accommodation space is generally the oil inlet end, the temperature of the heat-conducting oil is higher, so the heat-conducting oil passage 201 is placed close to the second accommodation space.
  • the cross-sectional area of the space is set larger, which can make the heat-conducting oil pass through quickly and reduce the heat release.
  • the temperature of the heat-conducting oil will decrease, but the cross-sectional area of the heat-conducting oil passage 201 will become smaller. , the heat transfer oil passes at a slower speed, and the heat release is more sufficient, so that the heat dissipation effect of the upper and lower ends of the heat transfer part is similar.
  • there are at least three heat-conducting oil passages 201 wherein the three heat-conducting oil passages 201 are the first heat-conducting oil passage 201 a , the second heat-conducting oil passage 201 b and the The third heat transfer oil passage 201c.
  • There are at least two first matching portions 140 and the second matching portions 210 are disposed corresponding to the first matching portions 140 .
  • One first fitting portion 140 is located between the first heat transfer oil passage 201a and the second heat transfer oil passage 201b, and the other first fitting portion 140 is located between the second heat transfer oil passage 201b and the third heat transfer oil passage 201c.
  • the two first matching portions 140 are located at two ends of the heat dissipation member 100 , respectively.
  • the vertical alignment of the heat sink 100 and the matching sheet 200 can also be ensured, the heat conduction path can flow smoothly, and leakage can be reduced.
  • an embodiment discloses a heater, including any one of the above-mentioned fins, the number of fins is at least two, the fins are arranged side by side, and two adjacent fins interval setting at the edge of the .
  • the edges of two adjacent fins are arranged at intervals, and the first folded edge of the fins is arranged at an angle relative to the main body 110, so that a channel 101 can be formed between the two adjacent fins.
  • the air in the channel 101 rises with the increase of temperature, forming a chimney effect. Since the structure of the first folded edge enables air to enter and exit the channel 101 from the outside of the fin, the air intake or air output of the channel 101 can be increased, and the air for heat exchange can be increased under the action of the chimney effect in the channel 101 Therefore, the indoor temperature can be raised quickly.
  • the first folded portion 120 of one of the sill pieces is spaced apart from the main body 110 of the other sill piece. At this time, the first folded portion 120 will not completely seal the space between the two fins. In addition to enclosing the channel 101 to achieve the chimney effect, air can also pass through the space between the first folded portion 120 and the main body 110 . The gap enters between the two fins for heat exchange to improve the heating rate of indoor air.
  • the first folded portion 120 of one of the fins is disposed at intervals from the first folded portion 120 of the other fin.
  • the heat transfer oil passages 201 of two adjacent fins communicate with each other.
  • the first convex hull 150 of one of the fins is disposed in contact with the third convex hull 220 of the other fin, and the second hull 160 of one of the fins is in contact with the other
  • the fourth convex hull 230 of the shim is disposed in contact with each other, and the first convex hull 150 and the third convex hull 220 are respectively provided with a first through opening, and the second convex hull 160 and the fourth convex hull 230 are respectively provided with a second through hole. port to realize the heat transfer oil circulation between different fins.

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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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

Dissipateur thermique, ailette et dispositif de chauffage. Le dissipateur thermique comprend un corps (110). Le corps (110) est utilisé pour un échange de chaleur. Une première partie pliée (120) est disposée au niveau d'un bord latéral du corps (110). La première partie pliée (120) est disposée de façon à former un angle inclus avec le corps. Une première encoche (121) est formée sur la première partie pliée (120). La première partie pliée (120) est disposée de façon à former un angle inclus avec le corps (110), et par conséquent, peut coopérer avec le corps (110) pour définir un canal permettant de chauffer l'air, et l'air monte après un échange de chaleur avec un dissipateur thermique afin de former un effet de cheminée dans le canal, de façon à accélérer l'échange de chaleur et la convection de l'air. De plus, la structure de la première partie pliée (120) permet l'entrée d'air dans le canal, et sa sortie du canal, à partir de l'extérieur du dissipateur thermique, de sorte que l'entrée d'air ou la sortie d'air du canal peut être augmentée, et que la quantité d'air ayant subi un échange de chaleur, et la vitesse d'échange de chaleur, peuvent être augmentées sous l'action de l'effet de cheminée, ce qui permet d'augmenter rapidement la température intérieure.
PCT/CN2021/090927 2020-07-24 2021-04-29 Dissipateur thermique, ailette et dispositif de chauffage WO2022016945A1 (fr)

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CN202010722673.3A CN111811032A (zh) 2020-07-24 2020-07-24 散热件、汀片及取暖器
CN202010722673.3 2020-07-24

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CN115371121A (zh) * 2022-08-29 2022-11-22 珠海格力电器股份有限公司 一种散热片、散热片组件及电热油汀
CN115371121B (zh) * 2022-08-29 2024-05-24 珠海格力电器股份有限公司 一种散热片、散热片组件及电热油汀

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CN111811032A (zh) * 2020-07-24 2020-10-23 珠海格力电器股份有限公司 散热件、汀片及取暖器

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