WO2019235003A1 - Dispositif de cuisson - Google Patents

Dispositif de cuisson Download PDF

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Publication number
WO2019235003A1
WO2019235003A1 PCT/JP2019/007971 JP2019007971W WO2019235003A1 WO 2019235003 A1 WO2019235003 A1 WO 2019235003A1 JP 2019007971 W JP2019007971 W JP 2019007971W WO 2019235003 A1 WO2019235003 A1 WO 2019235003A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
circuit board
duct
heating cooker
opening
Prior art date
Application number
PCT/JP2019/007971
Other languages
English (en)
Japanese (ja)
Inventor
浅海　伸二
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2020523516A priority Critical patent/JP7271534B2/ja
Publication of WO2019235003A1 publication Critical patent/WO2019235003A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/02—Stoves or ranges heated by electric energy using microwaves

Definitions

  • the present invention relates to a cooking device in which a circuit board is provided in a door of a heating cabinet.
  • Patent Document 1 proposes a cooking device in which an operation unit and a circuit board that performs various processes in response to operations of the operation unit are provided in a door that is an opening / closing door of a heating cabinet.
  • the heating cooker disclosed in Patent Document 1 is provided with a cooling means for cooling the circuit board provided on the door so that the circuit board provided on the door is kept at a constant temperature. I try to keep it below.
  • the circuit board provided in the door is heated by radiant heat from the heating chamber during cooking.
  • cooling air is circulated through a gap formed between the operation button provided on the surface of the door and the circuit board in the door, and the circuit board is circulated.
  • the cooling air is circulated in the circuit board housing part, but the cooling air hits the surface opposite to the operation button of the circuit board housing part (the surface receiving the radiant heat from the heating chamber during cooking). Absent.
  • the radiation board is not sufficiently shielded against the surface of the circuit board provided in the door, and the circuit board is not sufficiently cooled. There is a risk of problems such as the life of circuit components and malfunction of microcomputers.
  • An object of one embodiment of the present invention is to provide a cooking device that can sufficiently cool a circuit board provided in a door that opens and closes a heating chamber.
  • a cooking device is a cooking device including an opening / closing door that opens and closes an opening of a heating chamber, and an operation unit is provided on a front surface of the opening / closing door.
  • a circuit board that receives various operations from the operation unit and performs various processes is provided in the open / close door, and a duct is provided so as to overlap at least a part of the back surface of the circuit board housing unit.
  • the circuit board provided in the open / close door that opens and closes the heating chamber can be sufficiently cooled.
  • FIG. 3 is an exploded perspective view of the door shown in FIG. 2.
  • (A) is an AA arrow directional cross-sectional view of the door shown in FIG. 2
  • (b) is a simplified view of (a).
  • FIG. 5 is a cross-sectional view taken along line BB in the cross-sectional view shown in FIG. 4. It is the schematic of the door of the heating cooker which concerns on Embodiment 2 of this invention. It is a schematic sectional drawing of the heating cooker which concerns on Embodiment 3 of this invention.
  • Embodiment 1 Hereinafter, an embodiment of the present invention will be described in detail.
  • FIG. 1 is a front view of a heating cooker 1 of the present embodiment, where (a) shows a state in which a door (opening / closing door) 3 is closed, and (b) shows a state in which the door 3 is opened.
  • the cooking device 1 includes a magnetron (not shown) that generates microwaves, and is a cooking device that performs microwave cooking as cooking.
  • the heating cooker 1 may have an oven cooking function in addition to a microwave cooking function.
  • the heating cooker 1 includes a rectangular parallelepiped casing 2 and a door 3, and a space surrounded by the casing 2 is a heating chamber 2 a for accommodating an object to be heated.
  • the magnetron is provided inside the casing 2 (for example, on the side opposite to the door 3 with the heating chamber 2a interposed therebetween).
  • the door 3 is an open / close door for opening and closing the opening 2b of the heating chamber 2a, and a window (window portion) 3a disposed at a position facing the heating chamber 2a and a frame (frame portion) 3b surrounding the window 3a.
  • the window 3a is fitted with heat-resistant glass or heat-resistant transparent resin so that the heating chamber 2a can be seen.
  • the frame 3b is made of a nonmetallic material, for example, a resin.
  • the door 3 is provided so that the heating chamber 2a can be opened and closed.
  • the door 3 is pivoted about the lower end side, and a handle 4 is attached to the upper side as user assistance for opening and closing the door 3.
  • the door 3 is configured to be opened and closed by rotating around the lower end side of the door 3.
  • the present invention is not limited to this.
  • the left end or the right end of the door 3 is The door 3 may be configured to open and close by rotating to the center. Details of the door 3 will be described later.
  • a shield material (not shown) having a size covering the opening 2b at the entrance of the heating chamber 2a is formed on the surface of the door 3 facing the heating chamber 2a.
  • the cooking device 1 is further provided with a display operation unit 5 on the front surface of the door 3 for displaying various information related to the cooking device 1 and receiving operations on the cooking device 1.
  • the display operation unit 5 is provided with a display panel 8 for displaying various information such as a dial 6 and buttons 7 and operation information.
  • the display operation part 5 may be comprised as a touch panel which does not use physical members, such as the dial 6 and the button 7, for example.
  • FIG. 2 shows a perspective view of the door 3
  • FIG. 3 shows an exploded perspective view of the door 3.
  • the door 3 includes a panel portion 31a for providing the display operation portion 5 below the window 3a.
  • the door 3 includes a panel 31a, a start button 31b and an encoder button 31c, a panel lattice 31d, a button support shaft 31e, and a selection button that constitute the dial 6 of the display operation unit 5, as shown in FIG. (B) 31f, cancel button 31g, selection button (A) 31h, blower fan 31i, circuit board 31j, outer door glass 31k, blower path plate 31l, glass stopper 31m, door support member 31n, door subframe 31o, door packing 31p and door cover 31q.
  • the door 3 configured as described above has a structure in which a circuit board 31j is provided.
  • the circuit board 31j is an operation board for accepting operations from the display operation unit 5 and performing various processes such as cooking in the heating cooker 1.
  • the circuit board 31j is vulnerable to heat.
  • the temperature in the heating chamber 2a is about 300 ° C. according to the menu.
  • the heating cooker 1 according to the present embodiment includes a cooling mechanism for cooling the circuit board 31j.
  • ⁇ Cooling mechanism of circuit board 31j> 4A is a cross-sectional view taken along line AA in FIG. 2, and FIG. 4B is a simplified view of FIG. 5 is a cross-sectional view taken along line BB in FIG.
  • a duct 40 formed by the air passage plate 31l is formed on the back surface of the circuit board 31j (the surface opposite to the surface on which the display operation unit 5 is provided).
  • the air passage plate 31l has a substantially U-shaped cross section, and is installed in the frame (frame portion) 3b with the concave portion facing in the direction along the longitudinal direction of the circuit board 31j, and serves as an air passage through which cooling air flows.
  • To form a duct 40 having The air passage plate 31l is made of a metal substrate.
  • the duct 40 introduces the cooling air from the blower fan 31i from the supply port 40a at one end, and discharges the cooling air flowing through the duct 40 from the discharge port 40b (FIG. 6) at the other end. It has become. Thereby, the back side (heating chamber side) of the accommodating portion of the circuit board 31j is cooled by the cooling air flowing through the duct 40. Further, the cooling air from the blower fan 31i is configured to flow not only to the supply port 40a of the duct 40 but also to the accommodating portion side of the circuit board 31j. As a result, the front and back sides of the circuit board 31j are also cooled.
  • the duct 40 may be formed so that at least a part of the back surface of the circuit board 31j overlaps, but it is preferable that the duct 40 is formed on the entire back surface of the circuit board 31j from the viewpoint of cooling efficiency.
  • a cooling mechanism for cooling the circuit board 31j is configured by the blower fan 31i, the duct 40, and the exhaust hole 3d.
  • the heating cooker 1 having the above configuration includes a circuit board 31j in the door 3, and the back surface of the circuit board 31j, that is, the surface opposite to the surface facing the display operation unit 5 (the heating chamber when the door 3 is closed).
  • the duct 40 is provided so that at least one part of the surface facing 2a overlaps. Since the inside of the duct 40 is a space, the heat from the heating chamber 2a can be shielded by the duct 40. Thus, since the radiant heat from the heating chamber 2a is shielded by the duct 40, an increase in the temperature of the circuit board 31j can be suppressed. Therefore, the circuit board 31j can be sufficiently cooled.
  • the heating cooker 1 is provided with a blower fan 31i which is a blower for sending cooling air into the duct 40.
  • a blower fan 31i which is a blower for sending cooling air into the duct 40.
  • the discharge port 40 b of the duct 40 is a discharge port for discharging cooling air to the outside of the heating cooker 1, and is formed in the lower part of the partition plate 141.
  • the cooling air flowing through the duct 40 is discharged from the discharge port 40b to the outside of the door 3. That is, since the blower fan 31i can always send fresh cooling air to the duct 40, the cooling efficiency of the circuit board 31j can be further increased.
  • the circuit board 31j can further enhance the cooling efficiency of the front and back surfaces.
  • the cooling air In order to increase the cooling efficiency of the circuit board 31j, it is preferable that the cooling air always flows in the duct 40, and it is not preferable to stay in the duct 40.
  • the cooling air sent into the duct 40 is prevented from staying in the duct 40 will be described.
  • FIG. 6 shows the door 3 in the cooking device of the present embodiment, where (a) is a front view and (b) is a rear view.
  • the front view of the door 3 shows a state where the panel lattice 31d is removed and the blower fan 31i is exposed
  • the rear view shows a state where the duct 40 is removed.
  • the cooling air from the blower fan 31i is introduced into the door 3 from the supply port 40a of the duct 40 and is discharged to the outside of the door 3 through the discharge port 40b.
  • a partition plate 141 is formed in the vicinity of the discharge port 40b of the duct 40 to narrow the width on the downstream side of the duct 40 on the upstream side of the air flow path. That is, the air passage in the duct 40 is narrowed in front of the discharge port 40b. As a result, the pressure related to the cooling air flowing in the duct 40 becomes higher due to the narrow air passage near the discharge port 40b, so that the flow velocity of the cooling air becomes faster near the discharge port 40b. As a result, the cooling air from the blower fan 31i is appropriately discharged outside from the discharge port 40b without stagnation in the duct 40. Therefore, since a new cooling air always flows on the back surface of the circuit board 31j, the back surface of the circuit board 31j can be efficiently cooled.
  • FIG. 7 is a side sectional view of the heating cooker 201 of the present embodiment.
  • the radiant heat of the heating chamber 202a is transmitted from the opening 202b to the circuit board 231j in the door 203.
  • the circuit board 231j is preferably disposed at a position far from the opening 202b in order to reduce the influence of radiant heat from the heating chamber 202a in the door 203.
  • the duct 240 is provided on the back side (the heating chamber 202a side) of the circuit board 231j, so that the circuit board 231j is not easily affected by the radiant heat from the heating chamber 202a.
  • the heating cooker 201 has a circuit board 231 j provided in the door 203 in the state where the door 203 closes the opening 202 b of the heating chamber 202 a in the casing 202. And at least partially overlap (OL portion in the figure).
  • the duct 240 is also arranged so as to at least partially overlap the opening 202b of the casing 202, similarly to the circuit board 231j.
  • the duct 240 is preferably arranged so as to entirely cover the back side of the circuit board 231j, but is preferably arranged so as to cover at least a portion where the circuit board 231j overlaps the opening 202b. .
  • the circuit board 231j may be disposed at any position in the door 203.
  • the degree of freedom in designing the heating cooker 201 is increased, design is emphasized, and space saving is achieved. As a result, the manufacturing cost can be reduced.
  • the heating cooker to which the present invention can be applied includes a heating chamber and an opening / closing door in addition to a microwave oven. Any heating cooker may be used, for example, an oven or the like.

Landscapes

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

Abstract

La présente invention concerne un dispositif de cuisson dans lequel une carte de circuits imprimés positionnée à l'intérieur d'une porte pour ouvrir et fermer un compartiment de chauffage peut être suffisamment refroidie. Une carte de circuits imprimés (31j) est positionnée à l'intérieur d'une porte (3) pour ouvrir et fermer le compartiment de chauffage d'un dispositif de cuisson, et un conduit (40) est disposé de telle sorte que la surface de la carte de circuits imprimés (31j), qui fait face à une section de fonctionnement d'affichage (5), et au moins une partie de la surface opposée se chevauchent mutuellement.
PCT/JP2019/007971 2018-06-07 2019-03-01 Dispositif de cuisson WO2019235003A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020523516A JP7271534B2 (ja) 2018-06-07 2019-03-01 加熱調理器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018109724 2018-06-07
JP2018-109724 2018-06-07

Publications (1)

Publication Number Publication Date
WO2019235003A1 true WO2019235003A1 (fr) 2019-12-12

Family

ID=68770169

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/007971 WO2019235003A1 (fr) 2018-06-07 2019-03-01 Dispositif de cuisson

Country Status (3)

Country Link
JP (1) JP7271534B2 (fr)
TW (1) TWI701412B (fr)
WO (1) WO2019235003A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3760930A4 (fr) * 2018-02-28 2021-04-14 Panasonic Intellectual Property Management Co., Ltd. Appareil de cuisson chauffant
EP4174382A1 (fr) * 2021-10-28 2023-05-03 LG Electronics, Inc. Appareil de cuisson
JP7446897B2 (ja) 2020-04-10 2024-03-11 東芝ホームテクノ株式会社 加熱調理器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015129449A1 (fr) * 2014-02-27 2015-09-03 シャープ株式会社 Cuiseur
JP2016075470A (ja) * 2015-12-10 2016-05-12 パナソニックＩｐマネジメント株式会社 加熱調理器
JP2017026233A (ja) * 2015-07-23 2017-02-02 シャープ株式会社 加熱調理器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102124833B1 (ko) * 2013-09-11 2020-06-19 삼성전자주식회사 오븐

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015129449A1 (fr) * 2014-02-27 2015-09-03 シャープ株式会社 Cuiseur
JP2017026233A (ja) * 2015-07-23 2017-02-02 シャープ株式会社 加熱調理器
JP2016075470A (ja) * 2015-12-10 2016-05-12 パナソニックＩｐマネジメント株式会社 加熱調理器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3760930A4 (fr) * 2018-02-28 2021-04-14 Panasonic Intellectual Property Management Co., Ltd. Appareil de cuisson chauffant
JP7446897B2 (ja) 2020-04-10 2024-03-11 東芝ホームテクノ株式会社 加熱調理器
EP4174382A1 (fr) * 2021-10-28 2023-05-03 LG Electronics, Inc. Appareil de cuisson

Also Published As

Publication number Publication date
JP7271534B2 (ja) 2023-05-11
TW202001154A (zh) 2020-01-01
TWI701412B (zh) 2020-08-11
JPWO2019235003A1 (ja) 2021-06-17

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