EP3702691B1 - Chauffe-eau instantané pour réchauffer un liquide - Google Patents

Chauffe-eau instantané pour réchauffer un liquide Download PDF

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Publication number
EP3702691B1
EP3702691B1 EP19160083.2A EP19160083A EP3702691B1 EP 3702691 B1 EP3702691 B1 EP 3702691B1 EP 19160083 A EP19160083 A EP 19160083A EP 3702691 B1 EP3702691 B1 EP 3702691B1
Authority
EP
European Patent Office
Prior art keywords
sealant
channel
base body
sealing
end side
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.)
Active
Application number
EP19160083.2A
Other languages
German (de)
English (en)
Other versions
EP3702691A1 (fr
Inventor
Christian Koch
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.)
Gerdes Holding GmbH and Co KG
Original Assignee
Gerdes Holding GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gerdes Holding GmbH and Co KG filed Critical Gerdes Holding GmbH and Co KG
Priority to PL19160083.2T priority Critical patent/PL3702691T3/pl
Priority to EP19160083.2A priority patent/EP3702691B1/fr
Priority to CN202010129875.7A priority patent/CN111623524B/zh
Publication of EP3702691A1 publication Critical patent/EP3702691A1/fr
Application granted granted Critical
Publication of EP3702691B1 publication Critical patent/EP3702691B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 

Definitions

  • the present invention relates to a continuous-flow heater for heating a liquid, comprising a base body with a channel arrangement formed in the base body with a plurality of fluid-passing channels, wherein the fluid-passing channels are designed and set up to pass a fluid through, with at least two of the channels each being located in the base body Formation of channel openings extend on at least one end side of the base body, with deflection end faces being formed on the end side, which are designed to redirect the fluid between the channel openings, and at least one cover part, which corresponds to the deflection end faces, sealed to form sealing deflection bridge channels between associated channel openings on the End side is detachably arranged, the end side and the cover part each having sealant recesses surrounding the cross sections of the deflection bridge channels, which are each designed and set up to receive a sealant.
  • Known electric instantaneous water heaters of the type mentioned generally have a base body which includes several fluid-passing channels.
  • the base body is manufactured, for example, as a plastic injection molded part that has sufficient strength and electrical insulating properties.
  • the base body of the generic instantaneous water heater usually has at least one end side; as a rule, such instantaneous water heaters include two end sides.
  • the end sides of the base body each have openings for the fluid-passing channels. So that the fluid-passing channels can be connected to one another or the fluid can be redirected, deflection end faces are formed on the end sides.
  • the known instantaneous water heaters of the type mentioned have cover parts adapted to the end sides, which have channel openings corresponding to the end sides and are designed to deflect and seal the fluid-passing channels.
  • the deflection end faces of the end sides and the cover parts are joined together in a watertight and pressure-tight manner. There are seals between the cover parts and the deflection end faces Deflection bridge channels are formed, which connect adjacent or mutually assigned channel openings.
  • the known generic instantaneous water heaters generally have further channel arrangements which include further components.
  • motor valves are provided, which also include fluid-passing channels. Between sections of fluid-passing channels of the further channel arrangements of the instantaneous water heaters there are sections which are also joined together in a watertight and pressure-tight manner.
  • Such instantaneous water heaters of the generic type are e.g. B. from the EP 2 489 951 A1 and the FR 2 803 372 A3 known.
  • the US 2010/199853 A1 discloses a boiler with at least one seal positioned between a first wall of a diffuser and the base body to ensure sealing of the heating space.
  • the base body of the known instantaneous water heaters is usually a cuboid structure. It can also be at least partially corner-free and therefore round-shaped.
  • the water-carrying or fluid-passing channels are part of the base body.
  • Known electric instantaneous water heaters of the type mentioned have a base body or channel arrangements with broad sides or also called end sides forming two end faces, to which a cover part is attached over the entire surface or at least over a partial area of the broad side.
  • the channel arrangement of such instantaneous water heaters is preferably designed over the entire width, length and height of the base body. However, it is also possible for the channel arrangement to be arranged only in a partial area of the base body.
  • Water-carrying channels also referred to as fluid-passing channels, are provided in the base body for guiding water or for carrying out a comparable fluid, which can be arranged in different orientations and formations.
  • each of the sealant recesses is between a sealing surface on the inside of the channel and a sealing surface on the outside of the channel is arranged, and the channel-outside sealing surfaces of the end side of the base body and the cover part are set up in such a way that they lie flat against one another in a sealing manner, while the channel-inside sealing surfaces of the end side of the base body and the cover part are spaced apart from one another, leaving a sealing gap.
  • a cost-effective and at the same time reliably sealed structural design of a base body for an instantaneous water heater is proposed.
  • the production of the base body is simplified by spacing the sealing surfaces on the inside of the channel while leaving a sealing gap. Only the sealing surfaces on the outside of the duct lie flat against each other. This reduces the costs of the manufacturing process, since only the sealing surfaces on the outside of the channel have to be manufactured with a correspondingly precise dimension and with an extremely low tolerance, whereas the sealing surfaces on the inside of the channel can have a larger tolerance in the manufacturing process due to the sealing gap left.
  • the costs for quality management for monitoring the adhered to tolerances are reduced because only the sealing surfaces on the outside of the channel have to be monitored to ensure compliance with the dimensions, since only these are in a flat seal against one another.
  • the sealing gap in the area of the sealing surfaces on the inside of the channel offers a further advantage, namely that a further sealing means can be arranged in this sealing gap for additional sealing in order to achieve an additional seal.
  • An expedient embodiment of the invention is characterized in that a sealant is arranged in the sealant recesses. This offers the advantage that the seal between the end side and the cover part is improved.
  • the sealant arranged in the sealant recess leads to a further seal, whereby a secure seal is always ensured even at higher pressures within the channel arrangement.
  • a preferred development of the invention is characterized in that the sealant comprises a molded part made of an elastic material.
  • the elastic material of the sealant offers the advantage that it is deformable. Due to its deformability, the sealant conforms optimally to the surface geometry and thus creates an optimal seal.
  • a preferred embodiment of the elastic material includes rubber and/or silicone and/or plastic.
  • the sealant comprises a surface seal. More preferably, this surface seal is made in one piece and made of an elastic material, or of a flowable but hardening material, for example silicone, and is designed and aligned.
  • the sealant particularly preferably has the cross-sectional shape of a double trapezoid joined together on the longer of the opposite sides.
  • the elastic material of the sealant deforms during the passage of a fluid in the fluid-passing channels in the direction of or within the sealing gap of the surfaces on the inside of the channel.
  • the elastic sealant is arranged in the sealant recess in such a way that it is designed to be deformable in the direction of or within the sealing gap when the fluid is passed through the fluid-passing channels.
  • the sealant is increasingly pressed into the sealant recess. In this way, the tightness between the end side and the cover part is even further increased as the pressure increases.
  • the seal is therefore designed to be self-sealing.
  • a further expedient embodiment of the invention is characterized in that at least one further sealant recess is designed and set up to accommodate a further sealant with further sealing surfaces between the sealing surface on the inside of the channel and the sealing surface on the outside of the channel of the sealant recesses of the end side or the cover part.
  • the seal is therefore designed to be redundant, which increases the reliability of the overall seal and results in a significantly increased average service life of the instantaneous water heater.
  • a further sealant is contained in the at least one further sealant recess, wherein in a further preferred embodiment the further sealant comprises a molded part made of an elastic material.
  • “Moulded part” in the sense of the invention means that it is designed according to the dimensions of the sealant recesses and the deformation of the Sealant is designed accordingly. This offers the advantage that the molded part is elastically prestressed between the cover part and the end side and achieves a high sealing effect.
  • a preferred development of the invention is characterized in that the end side and the cover part are connected in a force-fitting, material- or form-fitting manner.
  • a reliable fixation between the end side and the cover part is provided in a simple manner.
  • the fixation between the end side and the cover part takes place by means of screw connections.
  • Screw connections offer the advantage that they are easy to handle, cost-effective and generally reversible, which makes it possible, for example, to replace the sealants used.
  • a further expedient embodiment of the invention is characterized in that the sealing gap of the sealing surfaces on the inside of the channel has a smaller sealing gap width than the width of the sealant recess. Due to the smaller sealing gap width of the sealing gap of the sealing surfaces on the inside of the channel than the width of the sealant recess, a barrier is created for any contaminants contained in the fluid. Furthermore, the smaller gap in the sealing surfaces on the inside of the channel ensures that the largest gap width lies within the sealant recess, which is intended to accommodate a sealant. The different gap width also enables the sealant to be preferably elastically deformed into the sealing gap of the sealing surfaces on the inside of the channel, which further increases the sealing effect.
  • a preferred development of the invention is characterized in that the sealing surfaces on the outside of the channel are at least essentially gap-free. If necessary, the channel arrangement is sealed by the sealing surfaces on the outside of the channel. Furthermore, the essentially gap-free sealing surfaces prevent unwanted contaminants from penetrating the area of the sealant recess, which could, for example, lead to damage or corrosion of the sealant. At least essentially gap-free in the sense of the invention means gap-free or with a gap whose maximum width is a few ⁇ m.
  • sealant recesses are arranged between fluid-passing channels on the inside of the channel arrangement, with sealing surfaces on the inside of the channel being formed and set up on both sides, the sealing surfaces on the inside of the channel having a sealing gap.
  • a sealant made of an elastic material is arranged in the sealant recess. This offers the advantage that the sealant can escape into the sealing gap of the sealing surfaces on the inside of the channel if the prevailing pressure requires this.
  • Fig. 1 shows a perspective exploded view of a section of a base body 10 and a cover part 16 of the instantaneous water heater according to the invention - not shown in the figures.
  • the instantaneous water heater includes the base body 10 with a channel arrangement 11 formed in the base body 10 with several fluid passages Channels 12, wherein the fluid-passing channels 12 are designed and set up to pass a fluid through.
  • the base body 10 of the instantaneous water heater at least two of the channels 12 extend on at least one end side 14, forming channel openings 13.
  • deflection end faces 15 are formed, which are set up to divert the fluid between channel openings 13.
  • the base body 10 is expediently a body made of plastic using an injection molding process.
  • the instantaneous water heater includes at least one cover part 16.
  • the cover part 16 is sealingly arranged on the base body 10 and can be detached from it.
  • the deflection end faces 15 form sealing deflection bridge channels 17 between associated channel openings 13.
  • the deflection bridge channels 17 redirect the fluid-passing channels 12 within the instantaneous water heater.
  • the deflection bridge channels 17 are formed in particular within the cover part 16.
  • the detachable arrangement of the cover part 16 on the base body 10 is preferably carried out by means of detachable connecting elements (not shown in the figures), particularly preferably by means of screw connections. Such connecting elements are arranged within connecting element receptacles provided for this purpose in the base body 10 and the cover part 16, whereby the cover part 16 is detachably arranged on the end side 14.
  • the end side 14 and the cover part 16 each have sealant recesses 18 surrounding the cross sections of the deflection bridge channels 17.
  • the sealant recesses 18 are also designed and set up to accommodate a sealant 19.
  • Each of the sealant recesses 18, that is to say both the sealant recesses 18 on the end side 14 of the base body 10 and on the cover part 16, is arranged between a sealing surface 20 on the inside of the channel and a sealing surface 21 on the outside of the channel.
  • the sealing surfaces 21 of the end side 14 of the base body 10 and the cover part 16 on the outside of the channel are set up in such a way that they lie flat against one another in a sealing manner.
  • the surface-sealing lying on top of one another between the sealing surfaces 21 on the outside of the channel is realized in such a way that they lie on top of one another at least essentially without a gap.
  • At least essentially without a gap in the sense of the invention means gap-free or with a gap whose maximum width is a few ⁇ m.
  • the ones on the inside of the channel Sealing surfaces 20 of the end side 14 of the base body 10 and the cover part 16 are spaced apart from one another, leaving a sealing gap 22.
  • the sealing gap 22 of the sealing surfaces 20 on the inside of the channel has a smaller sealing gap width than the width of the sealant recesses 18.
  • the sealant recesses 18 are a multiple of the width of the sealing gap 22.
  • a sealant 19 is preferably arranged in the sealant recesses 18 of the base body 10 and the cover part 16.
  • the sealant 19 is inserted into one of the sealant recesses 18 and automatically fixed therein when the cover part 16 is attached to the base body 10.
  • the sealant 19 is preferably reversible in the sealant recess 18. “Reversible” in the sense of the invention means that the sealant 19 can be removed without leaving any residue if necessary and can be replaced by a desired additional sealant 19.
  • the dimensions of the sealant 19 essentially correspond to the dimensions of the interior of the adjacent sealant recesses 18 in the assembled state.
  • the sealant 19 is set up in such a way that its cross-sectional area, when assembled and thus subjected to pressure, at least substantially fills the cross-sectional area of the sealing seat or the sealant recess 18 over the entire surface.
  • the liquid flows through the fluid-passing channels 11, whereby the liquid is under pre-pressure and so the areas of the instantaneous water heater through which liquid flows are subjected to the corresponding liquid pressure.
  • the liquid flows through the channel arrangement 11 of the base body 10, that is, the fluid-passing channels 12 as well as the deflection bridge channels 17 in the area of the cover part 16.
  • the sealing surfaces 21 on the outside of the channel which lie close together, seal the remaining instantaneous water heater from unwanted water leakage.
  • the sealant 19 inserted into the sealant recesses 18 supplements the tightness.
  • the preferably elastic sealant 19 can achieve a further additional sealing effect by moving in the direction of the Sealing gap 22 between the inner channel sealing surfaces 20 is designed and set up to be movable, whereby a further water shut-off effect is achieved.
  • the sealant 19 arranged in the sealant recesses 18 preferably has the cross-sectional shape of a double trapezoid joined together on the longer of the opposite sides.

Landscapes

  • 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)
  • Gasket Seals (AREA)

Claims (8)

  1. Chauffe-eau instantané pour réchauffer un liquide, comprenant
    un corps de base (10) avec un agencement de canaux (11) configuré dans le corps de base (10) avec plusieurs canaux (12) accessibles aux fluides, les canaux (12) accessibles aux fluides étant configurés et adaptés pour le passage d'un fluide,
    au moins deux des canaux (12) s'étendant chacun dans le corps de base (10) en formant des ouvertures de canal (13) sur au moins un côté d'extrémité (14) du corps de base (10), des surfaces frontales de déviation (15) étant configurées sur le côté d'extrémité (14), qui sont adaptées pour dévier le fluide entre les ouvertures de canal (13), et
    au moins une partie de couvercle (16) qui, en correspondant aux surfaces frontales de déviation (15), est agencée de manière amovible sur le côté d'extrémité (14) de manière étanche en formant des canaux de pontage de déviation étanches (17) entre des ouvertures de canal correspondantes (13),
    le côté d'extrémité (14) ainsi que la partie de couvercle (16) présentant respectivement des évidements pour agent d'étanchéité (18) entourant de manière périphérique les sections transversales des canaux de pontage de déviation (17), qui sont respectivement configurés et adaptés pour recevoir un agent d'étanchéité (19),
    caractérisé en ce que
    chacun des évidements pour agent d'étanchéité (18) est agencé entre une surface d'étanchéité (20) côté intérieur du canal et une surface d'étanchéité (21) côté extérieur du canal, et les surfaces d'étanchéité (21) côté extérieur du canal du côté d'extrémité (14) du corps de base (10) et de la partie de couvercle (16) sont respectivement adaptées de telle sorte que celles-ci s'appliquent les unes contre les autres de manière plane et étanche, tandis que les surfaces d'étanchéité (20) côté intérieur du canal du côté d'extrémité (14) du corps de base (10) et de la partie de couvercle (16) sont espacées les unes des autres en laissant un interstice d'étanchéité (22).
  2. Chauffe-eau instantané selon la revendication 1, caractérisé en ce qu'un agent d'étanchéité (19) est agencé dans les évidements pour agent d'étanchéité (18).
  3. Chauffe-eau instantané selon la revendication 1 ou 2, caractérisé en ce que l'agent d'étanchéité (19) comprend un matériau élastique.
  4. Chauffe-eau instantané selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'agent d'étanchéité (19) comprend une pièce moulée ou un joint plat.
  5. Chauffe-eau instantané selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'entre la surface d'étanchéité (20) côté intérieur du canal et la surface d'étanchéité (21) côté extérieur du canal des évidements pour agent d'étanchéité (18) du côté d'extrémité (14) ou de la partie de couvercle (16), au moins un autre évidement pour agent d'étanchéité est configuré et adapté pour recevoir un autre agent d'étanchéité avec d'autres surfaces d'étanchéité.
  6. Chauffe-eau instantané selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le côté d'extrémité (14) et la partie de couvercle (16) sont reliés par une liaison par la force, par la matière ou par la forme.
  7. Chauffe-eau instantané selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'interstice d'étanchéité (22) des surfaces d'étanchéité (20) côté intérieur du canal présente une largeur d'interstice d'étanchéité inférieure à la largeur de l'évidement pour agent d'étanchéité (18).
  8. Chauffe-eau instantané selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les surfaces d'étanchéité (21) côté extérieur du canal sont au moins essentiellement exemptes d'interstice.
EP19160083.2A 2019-02-28 2019-02-28 Chauffe-eau instantané pour réchauffer un liquide Active EP3702691B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL19160083.2T PL3702691T3 (pl) 2019-02-28 2019-02-28 Podgrzewacz przepływowy do podgrzewania cieczy
EP19160083.2A EP3702691B1 (fr) 2019-02-28 2019-02-28 Chauffe-eau instantané pour réchauffer un liquide
CN202010129875.7A CN111623524B (zh) 2019-02-28 2020-02-28 用于加热液体的连续式加热器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19160083.2A EP3702691B1 (fr) 2019-02-28 2019-02-28 Chauffe-eau instantané pour réchauffer un liquide

Publications (2)

Publication Number Publication Date
EP3702691A1 EP3702691A1 (fr) 2020-09-02
EP3702691B1 true EP3702691B1 (fr) 2023-11-15

Family

ID=65657274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19160083.2A Active EP3702691B1 (fr) 2019-02-28 2019-02-28 Chauffe-eau instantané pour réchauffer un liquide

Country Status (3)

Country Link
EP (1) EP3702691B1 (fr)
CN (1) CN111623524B (fr)
PL (1) PL3702691T3 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803372B3 (fr) * 1999-12-29 2001-12-21 Chia Hsiung Wu Appareil de chauffage a etancheite de securite
EP1884383B1 (fr) * 2006-07-31 2010-09-15 Behr France Rouffach SAS Dispositif de chauffage électrique, en particulier pour un véhicule
EP2330865B1 (fr) * 2009-12-03 2015-10-21 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
US20170295613A1 (en) * 2016-04-07 2017-10-12 Lg Electronics Inc. Heater assembly
CN106160430B (zh) * 2015-04-13 2020-04-03 罗伯特·博世有限公司 电动车辆的电源转换单元及其电源母线

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JPS59164470A (ja) * 1983-03-04 1984-09-17 Kitamura Gokin Seisakusho:Kk サ−モスタツト式の湯水混合栓
FR2920657B1 (fr) * 2007-09-07 2013-02-22 Cie Mediterraneenne Des Cafes Chaudiere pour machine de preparation de boissons.
EP2407069A1 (fr) * 2010-07-12 2012-01-18 Bleckmann GmbH & Co. KG Chauffe-eau instantané dynamique
DE102010040042A1 (de) * 2010-08-31 2012-03-01 BSH Bosch und Siemens Hausgeräte GmbH Heizblock und Dichtungselement für einen Heizblock
EP2489951B1 (fr) * 2011-02-21 2017-04-05 Gerdes OHG Chauffe-eau instantané électrique
EP2489952B2 (fr) * 2011-02-21 2020-11-11 Gerdes OHG Chauffe-eau instantané électrique
CA2735228C (fr) * 2011-03-21 2017-11-28 Ray King Corps de chaudiere pour systeme de chauffage electrothermique
US10184687B2 (en) * 2014-10-28 2019-01-22 Maxheat Hot Water Pty Ltd Hot water storage device
GB2542137B (en) * 2015-09-08 2017-12-06 Redring Xpelair Group Ltd Water boiler
CH711968A1 (de) * 2015-12-28 2017-06-30 C3 Casting Competence Center Gmbh Durchlauferhitzer.
CN108224751A (zh) * 2017-12-28 2018-06-29 苏州路之遥科技股份有限公司 一种用于坐便器的可杀菌即热式加热器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2803372B3 (fr) * 1999-12-29 2001-12-21 Chia Hsiung Wu Appareil de chauffage a etancheite de securite
EP1884383B1 (fr) * 2006-07-31 2010-09-15 Behr France Rouffach SAS Dispositif de chauffage électrique, en particulier pour un véhicule
EP2330865B1 (fr) * 2009-12-03 2015-10-21 Eberspächer catem GmbH & Co. KG Dispositif de chauffage électrique
CN106160430B (zh) * 2015-04-13 2020-04-03 罗伯特·博世有限公司 电动车辆的电源转换单元及其电源母线
US20170295613A1 (en) * 2016-04-07 2017-10-12 Lg Electronics Inc. Heater assembly

Also Published As

Publication number Publication date
CN111623524A (zh) 2020-09-04
PL3702691T3 (pl) 2024-04-15
EP3702691A1 (fr) 2020-09-02
CN111623524B (zh) 2023-01-03

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