WO2022089007A1 - 烹饪装置 - Google Patents

烹饪装置 Download PDF

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Publication number
WO2022089007A1
WO2022089007A1 PCT/CN2021/116853 CN2021116853W WO2022089007A1 WO 2022089007 A1 WO2022089007 A1 WO 2022089007A1 CN 2021116853 W CN2021116853 W CN 2021116853W WO 2022089007 A1 WO2022089007 A1 WO 2022089007A1
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WO
WIPO (PCT)
Prior art keywords
heating pipe
hole
cooking device
heating
buffer member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/116853
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English (en)
French (fr)
Inventor
孙炎军
韦鹏飞
唐相伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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 Midea Group Co Ltd, Guangdong Midea Kitchen Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of WO2022089007A1 publication Critical patent/WO2022089007A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
    • A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements

Definitions

  • the present application relates to the technical field of household electrical appliances, and in particular, to a cooking device.
  • the electric heating pipe in the oven is usually directly fixed on the inner wall of the box, that is, the assembly of the electric heating pipe has the problem of rigid contact, so when it is mechanically impacted or dropped, the electric heating pipe will withstand the transmission from the oven wall surface. Stress, resulting in breakage of the electric heating tube, etc., affects the performance and service life of the oven, and there is room for improvement.
  • an object of the present application is to provide a cooking device, which has a simple structure, and can make the heating pipe have the advantages of impact resistance and breakage resistance.
  • a cooking apparatus includes: a casing defining a cooking cavity; a heating pipe, the heating pipe is a graphite sheet heating pipe, at least a part of the heating pipe is located in the cooking cavity; a buffer the buffer part is matched with the casing and at least a part of the buffer part is arranged between the casing and the heating pipe.
  • the heating pipe has the advantages of anti-impact and anti-fracture, and the overall structure of the cooking device is simple, low in cost, good in performance and long in service life.
  • the side wall of the casing has a matching hole
  • the heating pipe is penetrated through the matching hole
  • the outer peripheral surface of the heating pipe is clearance-fitted with the hole along the matching hole .
  • the distance between the outer peripheral surface of the heating pipe and the hole edge of the matching hole is S, where S is greater than 1 mm, or S is equal to 1 mm.
  • the distance between the outer peripheral surface of the heating pipe and the hole edge of the matching hole is S, where S is equal to 1.5 mm, or S is equal to 5 mm, or S is greater than 1.5 mm and less than 5 mm.
  • the distance between the outer peripheral surface of the heating pipe and the hole edge of the matching hole is S, where S is equal to 2 mm, or S is equal to 4 mm, or S is greater than 2 mm and less than 4 mm.
  • the buffer member includes: a fixing part, one end of the fixing part is cooperatively connected with the housing and the other end extends away from the cooking cavity; a mounting part, one end of the mounting part is connected to the housing.
  • the other end of the fixing portion is connected, the other end of the mounting portion forms a free end, and the heating pipe is adapted to be connected with the mounting portion.
  • the installation portion corresponds to the position of the fitting hole, the heating pipe is inserted through the fitting hole, and the end of the heating pipe is fixedly connected to the installation portion.
  • the fixing portion is located on a side of the housing facing away from the cooking cavity
  • the mounting portion is located on a side of the housing facing away from the cooking cavity
  • the mounting portion and the The housings are spaced apart.
  • the extending direction of the fixing portion is parallel to the extending direction of the heating pipe, and the extending direction of the mounting portion is perpendicular to the extending direction of the fixing portion.
  • the buffer member forms a buffer washer
  • the buffer washer is sleeved on the heating pipe
  • the buffer washer is located in the matching hole and is matched with a hole edge of the matching hole.
  • the buffer member is provided with a mounting hole, the heating pipe is passed through the mounting hole, and the gap between the outer peripheral surface of the heating pipe and the hole edge of the mounting hole is smaller than that of the heating pipe. the gap between the outer peripheral surface of the heat pipe and the hole edge of the matching hole.
  • the buffer member is disposed adjacent to the matching hole and is fixedly connected to the side wall of the housing, and the heat pipe is in clearance fit with the buffer member or the heat pipe and the buffer member abut against each other. Cooperate.
  • the buffer member is a non-metallic member.
  • the buffer members include two buffer members arranged at intervals along the length direction of the heating pipe, and the structures of the two buffer members are the same or different.
  • the heating tube includes: an outer tube, the end of which is provided with a terminal; and a graphite heating sheet, which is provided on the outer tube and is connected to the Terminal connection, wherein the graphite heating sheet is formed with a pressing structure.
  • FIG. 1 is a schematic structural diagram of a cooking apparatus according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a cooking apparatus according to another embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a cooking apparatus according to yet another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a cooking apparatus according to still another embodiment of the present application.
  • FIG. 5 is a schematic diagram of an assembly relationship of a heating pipe according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of the force of a heating pipe according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the internal force of a heating pipe according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a heating unit according to an embodiment of the present application.
  • Heating tube 20 outer tube 21, graphite heating sheet 22, heating unit 23, first part 231, second part 232,
  • the buffer member 30 The buffer member 30 , the fixing portion 31 , the mounting portion 32 , and the mounting hole 33 .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • the cooking apparatus 100 according to the embodiment of the present application will be described below with reference to FIGS. 1 to 8 .
  • a cooking device 100 includes a housing 10 , a heating tube 20 and a buffer 30 , the housing 10 defines a cooking cavity 11 , and at least a part of the heating tube 20 is located in the cooking chamber 11 .
  • the buffer member 30 cooperates with the casing 10, and the cooperation here can be fixed connection, that is, the buffer member 30 is fixed on the casing 10, or can be fixed in the cooking device 100 through other structural members and realizes a relationship with the casing 10. Relatively stable cooperation relationship.
  • At least a part of the buffer member 30 is located between the casing 10 and the heating pipe 20 to prevent the heating pipe 20 from directly contacting the casing 10 , wherein the heating pipe 20 can be connected to the casing 10 through the buffer member 30 , that is, the heating pipe 20 It is indirectly mounted on the casing 10 through the buffer member 30 instead of being directly mounted on the casing 10 ; the heating pipe 20 can also be fixed on the cooking device through other structural members, and will not interact with the casing under the action of the buffer member 30 . 10 Contact collision, etc.
  • the buffer member 30 between the heating pipe 20 and the casing 10 , when the cooking device 100 is subjected to mechanical impact or falls, the stress transmitted by the wall surface of the casing 10 will be absorbed by the buffer member 30 . Absorb and reduce the impact stress on the heating pipe 20, so as to prevent the heating pipe 20 from breaking, so that the heating pipe 20 has the advantages of impact resistance and breaking resistance, and the overall structure of the cooking device 100 is simple, low in cost, and good in performance. long lasting.
  • the cooking device 100 here can be a steam oven, an oven, a microwave oven, etc.
  • the heating pipe 20 is a core component in the cooking device 100 .
  • the heating tube 20 includes: an outer tube 21 and a graphite heating sheet 22 , terminals are provided at both ends of the outer tube 21 , the graphite heating sheet 22 is arranged in the outer tube 21 , and the graphite heating sheet 22 generates heat.
  • the sheet 22 is connected to the terminal through lead wires, wherein the outer tube 21 may be a quartz tube, and the outer tube 21 may be filled with an inert gas.
  • the graphite heating sheet 22 is formed with a profiled structure, and the profiled structure includes a plurality of profiled units with the same structure, each profiled unit forms a "ji" shape, and the multiple profiled units are connected to each other to form a profiled profile
  • the heating tube 20 can achieve different powers by changing the pressing structure. Specifically, the parameters of the pressing structure can be changed. The width and length of the segment, the total length of the pressing structure, the distance between two adjacent pressing structures, and the distance between the pressing structure and the terminal, etc., the resistance of the graphite heating sheet 22 can be adjusted by changing the parameters of the pressing structure. In this way, the purpose of adjusting the power and strength of the heating pipe 20 is achieved.
  • the graphite heating sheet 22 includes a main heating section and a buffer section, the buffer sections are arranged at both ends of the graphite heating sheet 22, the main heating section is arranged in the middle of the graphite heating sheet 22, and is located between the buffer sections at both ends, A profiled structure is formed on the main heating section, wherein the buffer section may be provided with a profiled structure, or may not contain any profiled structure.
  • the buffer section at each end of the graphite heating sheet 22 may be one or more, and the graphite The buffer sections at both ends of the heating sheet 22 can be arranged symmetrically or asymmetrically. By arranging buffer sections at both ends of the main heating section, the impact resistance of the graphite heating sheet 22 can be improved to prevent the graphite heating sheet 22 from breaking when subjected to external impacts.
  • the graphite sheet base which is the base of the heat generating sheet
  • the heat generating sheet is relatively brittle, and the heat generating sheet is liable to break when subjected to an impact by an external force. Setting the buffer section on the base of the graphite sheet helps to slow down the impact of the external force, thereby reducing the breakage of the heat-generating sheet due to the impact of the external force.
  • the heating sheet can achieve the above beneficial effects:
  • the contact between the heating tube 20 and the wall of the electric oven is a rigid contact, that is, the assembly of the heating tube 20 and the wall of the electric oven.
  • the relationship can be simplified to a fixed beam structure.
  • the force of the heating pipe is analyzed. During the fall of the electric oven, the heating pipe bears the load transmitted from the wall of the oven.
  • the load can be considered to be evenly distributed on the heating pipe, so any place on the heating pipe, such as distance
  • the force at the end of the heating pipe whose length is x is: Among them, q is the load transmitted by the heating pipe from the oven wall during the fall of the electric oven, and l is the total length of the heating pipe. Referring to Figure 7, for both ends of the heating pipe, the force during the drop process is For the middle position of the heating pipe, that is, when the distance x from the two ends of the heating pipe is 1/2, the force during the falling process of the heating pipe is 0.
  • the heating efficiency of the heating element is improved, that is, the local area of the heating element is narrow, as shown in the first part 231 and the second part 232 in FIG. 8 .
  • the force area of this part of the region is smaller, so the shear stress in this region is larger. It can be seen from the above-mentioned internal force example diagram that the shear stress at both ends of the heating pipe is relatively large, and it is easy to reach the ultimate shear stress of the heating element material, thus causing the heating element to break.
  • a heat generating sheet with a buffering and pressing structure is proposed.
  • the shear stress on the end structure of the heat generating sheet is reduced and the impact resistance of the heat generating sheet is improved. , to prevent the heating piece in the heating tube from breaking during the falling process, so that the heating tube loses its heating performance.
  • the cooking apparatus 100 of the embodiment of the present application by using the graphite heating tube 20, the heating efficiency and the corresponding speed are improved, so that the cooking apparatus 100 realizes the function of rapid heating.
  • the graphite heating sheet 22 in the graphite heating tube 20 is relatively brittle, in order to prevent the graphite heating sheet 22 from breaking when the cooking device 100 is mechanically impacted or dropped, the graphite heating sheet 22
  • the buffer members 30 are fixed on the housing 10, and the buffer members 30 include two.
  • the two buffer members 30 are arranged at intervals along the length direction of the heating pipe 20.
  • the ends are fixed on the casing 10 through two buffer members 30 of the same structure; the structures of the two buffer members 30 can also be different, that is, the two ends of the heating pipe 20 are fixed on the casing 10 through two buffer members 30 of different structures .
  • the side wall of the housing 10 has a matching hole 12 , and the heating pipe 20 is penetrated at the matching hole 12 , and the matching hole 12 and the shape of the heating pipe 20 are here.
  • the matching hole 12 is a circular hole; when the shape of the end of the heating pipe 20 is square, the matching hole 12 is a square hole, and the outer peripheral surface of the heating pipe 20 is matched with the matching hole 12 .
  • the holes of the holes 12 are fitted along the clearance, that is to say, the diameter of the fitting holes 12 is larger than the radial size of the heating pipe 20, and the heating pipe 20 does not directly contact the casing 10, thereby preventing the impact force on the casing 10 from acting on the casing 10.
  • the heating pipe 20 is convenient for the assembly of the heating pipe 20 at the same time.
  • the distance between the outer peripheral surface of the heat pipe 20 and the hole edge of the matching hole 12 is S.
  • S is The distance along the radial direction of the matching hole 12, when the matching hole 12 is a square hole, the distance S here is the distance perpendicular to any side, wherein, if the distance S is too large, it will lead to excessive communication between the cooking cavity and the outside world, resulting in heat exchange, etc. Affects the overall structure manufacturing and aesthetics. Too small distance S will affect the installation and impact resistance of the heating pipe 20. In this example, S is greater than 1 mm, or S is equal to 1 mm.
  • the range of S is 1.5 mm.
  • S can be 1.5mm, S can also be 5mm, S can also be greater than or equal to 1.5mm or less than or equal to 5mm, for example, S is 2mm, 2.5mm, 3mm, 3.5mm, 4.5mm, etc.
  • the range of S is between 2mm and 4mm, that is, S can be 2mm, S can also be 4mm, S can also be greater than or equal to 2mm or less than or equal to 4mm, for example, S is 2mm, 2.5mm, 3mm, 3.5mm, etc.
  • the distance S between the outer peripheral surface of the heating pipe 20 and the hole edge of the matching hole 12 is limited within this range, which can not only ensure that the heating pipe 20 has effective impact resistance, but also avoid the cooking cavity from communicating with the outside world. Excessive clearance will affect the cooking effect.
  • the buffer member 30 includes: a fixing portion 31 and a mounting portion 32 .
  • One end of the fixing portion 31 is connected to the housing 10 in a mating manner, thereby realizing the fixing of the buffer member 30 on the housing 10 .
  • the other end of the fixing portion 31 extends away from the cooking cavity 11 , one end of the mounting portion 32 is connected to the other end of the fixing portion 31 , the other end of the mounting portion 32 forms a free end, and the mounting portion 32 is spaced apart from the housing 10 ,
  • the end of the heating pipe 20 is fastened to the mounting part 32 to realize the installation and fixation of the heating pipe 20; in some embodiments, the heating pipe 20 is connected with the part of the mounting part 32 adjacent to the free end, so that the cooking device 100 is mechanically When impacted or dropped, the stress transmitted by the wall surface of the casing 10 is absorbed at the buffer member 30, and the heating pipe 20 is not in direct contact with the casing 10, thereby reducing the impact stress on the heating pipe 20 and avoiding the rupture of the heating pipe 20. .
  • the mounting portion 32 corresponds to the position of the matching hole 12 , and the position corresponding here may be that the projection of the mounting portion 32 on the side wall of the housing 10 covers the matching hole 12 , so that the heating pipe 20 can be installed on the heating pipe 20 .
  • a part of the heating pipe 20 protrudes out of the matching hole 12, and the end of the heating pipe 20 is fixedly connected to the mounting part 32, which is not only conducive to the installation and fixation of the heating pipe 20, but also ensures that the heating pipe 20 is installed in place.
  • the outer peripheral surface of the heat pipe 20 can be arranged at an interval with the hole of the matching hole 12 , so as to avoid extrusion damage or the like when the heat pipe 20 is installed.
  • the buffer member 30 is provided on the outer side of the housing 10 , that is, the side of the housing 10 facing away from the cooking cavity 11 , specifically, one end of the fixing portion 31 is fixed to the outer side of the housing 10 .
  • the connection between the fixing part 31 and the housing 10 is provided with an auxiliary connector to ensure the stability of the fixing part 31 on the outside of the housing 10, and the mounting part 32 is connected with the other end of the fixing part 31 so that the mounting part 32
  • the outer side of the housing 10, and the mounting portion 32 is arranged at intervals from the housing 10, thereby ensuring that the mounting portion 32 forms a certain deformable space, and at the same time preventing the heating pipe 20 from colliding with the housing 10 after being installed.
  • the heating pipe 20 extends in the horizontal direction
  • the fixing part 31 also extends in the horizontal direction
  • the installation part 32 extends in the vertical direction
  • the extension direction of the installation part 32 is perpendicular to the extension of the fixing part 31 Therefore, the upper end of the mounting portion 32 is directly connected with the fixing portion 31, or connected through a transition structure, and the lower end of the mounting portion 32 forms a free end, wherein the mounting portion 32 and the fixing portion 31 can be integrally formed as a structural member, or can be
  • the mounting portion 32 is located at the end of the heating pipe 20 , and the end portion of the heating pipe 20 can be directly and fixedly connected to the mounting portion 32 .
  • the overall structure is compact and facilitates the overall layout of the cooking device 100 .
  • the buffer member 30 forms a buffer washer, and the buffer washer is sleeved on the heating pipe 20 , so that when the heating pipe 20 is inserted into the matching hole 12 , the buffer washer and the matching hole pass through the heating pipe 20 . 12 to avoid rigid contact between the heating pipe 20 and the casing 10, that is, by increasing the distance between the heating pipe 20 and the hole edge of the matching hole 12, increasing the distance between the heating pipe 20 and the casing 10
  • the buffer washer here may be a rubber ring, a silicone washer, a spring sheet, and the like.
  • the buffer member 30 is provided with a mounting hole 33 , and the heating pipe 20 is penetrated in the mounting hole 33 , wherein the space between the outer peripheral surface of the heating pipe 20 and the hole edge of the mounting hole 33 is The gap is S', and the gap S between the outer peripheral surface of the heating pipe and the hole edge of the matching hole 12, S' is smaller than S, so when the heating pipe 20 vibrates, it first contacts the buffer 30, and at the limit of the mounting hole 33 Under the action of the position, the heating pipe 20 will not contact the hole edge of the matching hole 12 , thereby avoiding the collision between the heating pipe 20 and the metal side wall of the casing 10 , and realizing the protective effect of the heating pipe 20 .
  • the buffer member 30 is fixedly connected with the side wall of the housing 10 , the buffer member 30 can form a buffer plate, and the buffer member 30 is located at a position adjacent to the matching hole 12 , the diameter of the matching hole 12 is If the diameter of the mounting hole 33 is large, the diameter of the mounting hole 33 is small, thereby ensuring that the heating pipe 20 is never in contact with the hole edge of the matching hole 12 .
  • the heating tube 20 and the buffer member 30 adopt a clearance fit method, that is, the gap between the outer peripheral surface of the heating tube 20 and the hole edge of the installation hole 33 is S' greater than 0. In this state, the installation hole 33 on the buffer member 30 is in this state.
  • the heating pipe 20 plays a limiting role. When the heating pipe 20 vibrates, it is in contact with the heating pipe 20. The outer wall surface of the heating pipe 20 is always in clearance fit with the matching hole 12. The heating pipe 20 is suspended relative to the housing 10, and the heating pipe Both ends of the 20 can be fixed on the cooking device 100 by other structural members.
  • the heating tube 20 is in abutting fit with the buffer member 30 , that is, the buffer member 30 is fixedly connected to the side wall of the housing 10 , and the buffer member 30 is directly sleeved on the heating tube 20 through the mounting hole 33 , the gap between the outer peripheral surface of the heat pipe 20 and the hole edge of the installation hole 33 is 0, and the buffer member 30 can play a role in fixing the heat pipe 20 .
  • the buffer member 30 is a non-metallic member to avoid damage to the heat pipe 20 when the buffer member 30 contacts the heating pipe 20.
  • the buffer member can be a mica sheet, which has the functions of insulation and low-loss thermal resistance. , and at the same time, the contact with the heating pipe 20 will not cause damage to the heating pipe 20 .
  • each buffer member 30 is arranged on the outer side of the housing 10, and the buffer member 30 includes a fixing portion 31 and a mounting portion 32, the fixing portion 31 is arranged above the housing 10, and one end of the fixing portion 31 is
  • the housing 10 is fixedly connected, the other end of the fixing portion 31 extends horizontally outward, the mounting portion 32 extends in the vertical direction, and the upper end of the mounting portion 32 is fixedly connected with the other end of the fixing portion 31, and the lower end of the mounting portion 32 forms a free end
  • the mounting portion 32 and the outer wall surface of the housing 10 are arranged at intervals, and at least a part of the mounting portion 32 corresponds to the position of the matching hole 12 , the two ends of the heating pipe 20 respectively protrude from the corresponding matching hole
  • the heating pipe 20 on the basis of increasing the installation hole position of the heating pipe 20, by making the heating pipe 20 in a suspended state without directly contacting the casing 10, when the casing 10 is impacted by the outside world, the two heating pipes The buffer member 30 at the end can counteract the impact of stress and prevent the heating pipe 20 from breaking. Therefore, the heating pipe 20 has the advantages of anti-impact and anti-fracture, and the overall structure of the cooking device 100 is simple, low in cost, good in performance, and long in service life. long.
  • the distance S between the outer peripheral surface of the heating pipe 20 and the hole edge of the matching hole 12 along the radial direction of the matching hole 12 is 3.8 mm.
  • the buffer members 30 at both ends have the same structure, each buffer member 30 forms a buffer washer, the buffer washer is sleeved on the heating pipe 20, the buffer washer and the hole edge of the matching hole 12 are abutting fit or interference fit, and the cooking device 100 can also There are other structural members for restricting the movement of the heating pipe 20, which are not limited here.
  • the heating pipe 20 has the advantages of impact resistance and breaking resistance, and the overall structure of the cooking device 100 is simple, low cost, good performance and long service life .
  • the distance S between the outer peripheral surface of the heating pipe 20 and the hole edge of the matching hole 12 along the radial direction of the matching hole 12 is 3.5 mm, which is 3.5 mm.
  • the buffer members 30 at both ends of the heat pipe 20 have different structures. One end of the heat pipe 20 is sleeved with a buffer washer, and the other end of the heat pipe 20 is fixed by the buffer member 30 fixed on the outer side of the housing 10.
  • the structure of the buffer member 30 in one embodiment is the same, and details are not repeated here.
  • the buffer members 30 by arranging buffer members 30 with different structures at both ends of the heating pipe 20, the impact stress on the casing 10 can be absorbed by the buffer washers, and the buffer member 30 can realize fixing and buffering stress, improving the The anti-impact and anti-fracture performance of the heating pipe 20, the installation of the heating pipe 20 is convenient, the use performance of the cooking device 100 is good, and the service life is long.
  • buffer members 30 fixed on the outer side of the housing 10 can also be provided at both ends of the heating pipe 20, and at the same time, two buffer washers can be sleeved on the heating pipe 20 to cooperate with the matching holes 12 at both ends of the heating pipe 20.
  • the impact resistance and fracture resistance of the heating pipe 20 are further improved, and the stability and reliability of the cooking device 100 are improved.
  • the distance S between the outer peripheral surface of the heating pipe 20 and the hole edge of the matching hole 12 along the radial direction of the matching hole 12 is 4.5 mm, which is 4.5 mm.
  • the buffer members 30 at both ends of the heat pipe 20 have the same structure, and both form a buffer plate with mounting holes 33, such as mica sheets.
  • the stability of 30, the middle of the buffer plate defines a mounting hole 33, the heating pipe 20 is penetrated in the mounting hole 33, the gap between the outer peripheral surface of the heating pipe 20 and the hole edge of the mounting hole 33 is S ⁇ , and S ⁇ is greater than 0 And less than S, for example, S' is 1mm.
  • the heating tube 20 when the heating tube 20 vibrates, the heating tube 20 first contacts the buffer member 30, and under the limiting action of the mounting hole 33, the heating tube 20 will not contact the hole edge of the matching hole 12, thereby avoiding The heating pipe 20 collides with the metal side wall of the casing 10 , etc., so as to achieve a protective effect on the heating pipe 20 .
  • the structure of the buffer members 30 at both ends of the heating pipe 20 in the above-mentioned embodiment can also be different.
  • the other end is fixed by a buffer member 30 fixed on the outer side of the housing 10 , and the structure of the buffer member 30 is the same as that of the buffer member 30 of the first embodiment, and will not be repeated here.
  • a first feature “above” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features The two features are not in direct contact but through another feature between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Resistance Heating (AREA)

Abstract

一种烹饪装置(100)，烹饪装置包括：壳体(10)，壳体(10)限定有烹饪腔(11)；发热管(20)，发热管(20)是石墨片发热管，发热管(20)的至少一部分位于烹饪腔(11)；缓冲件(30)，缓冲件(30)与壳体(10)配合且缓冲件(30)的至少一部分设于壳体(10)与发热管(20)之间。

Description

烹饪装置
相关申请的交叉引用
本申请基于申请号为202011197836.7，申请日为2020年10月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及生活电器技术领域，具体而言，涉及一种烹饪装置。
背景技术
相关技术中，烤箱内的电热管通常是直接固定在箱体的内壁面上，即电热管的装配存在刚性接触的问题，从而在受到机械冲击或跌落时，电热管会承受来自烤箱壁面传递的应力，从而导致电热管断裂等，影响烤箱的性能和使用寿命，存在改进的空间。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请的一个目的在于提出一种烹饪装置，所述烹饪装置结构简单，可使发热管具有抗冲击防断裂的优点。
根据本申请实施例的烹饪装置，包括：壳体，所述壳体限定有烹饪腔；发热管，所述发热管是石墨片发热管，所述发热管的至少一部分位于所述烹饪腔；缓冲件，所述缓冲件与所述壳体配合且所述缓冲件的至少一部分设于所述壳体与所述发热管之间。
根据本申请实施例的烹饪装置，通过在发热管和壳体之间设置缓冲件，在烹饪装置受到机械冲击或跌落时，由壳体壁面传递的应力会被缓冲件吸收，降低发热管受到的冲击应力，从而避免发热管发生断裂等，由此使得发热管具有抗冲击防断裂的优点，且烹饪装置的整体结构简单，成本低，使用性能好，使用寿命长。
根据本申请实施例的烹饪装置，所述壳体的侧壁具有配合孔，所述发热管穿设于所述配合孔，且所述发热管的外周面与所述配合孔的孔沿间隙配合。
在一些示例中，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中，S大于1mm，或者S等于1mm。
在一些示例中，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中，S等于1.5mm，或者S等于5mm，或者S大于1.5mm且小于5mm。
在一些示例中，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中， S等于2mm，或者S等于4mm，或者S大于2mm且小于4mm。
在一些示例中，所述缓冲件包括：固定部，所述固定部的一端与所述壳体配合连接且另一端向远离所述烹饪腔的方向延伸；安装部，所述安装部的一端与所述固定部的另一端连接，所述安装部的另一端形成自由端，所述发热管适于与所述安装部配合连接。
在一些示例中，所述安装部与所述配合孔位置对应，所述发热管穿设于所述配合孔且所述发热管的端部与所述安装部固定连接。
在一些示例中，所述固定部位于所述壳体的背离所述烹饪腔的一侧，所述安装部位于所述壳体的背离所述烹饪腔的一侧且所述安装部与所述壳体间隔布置。
在一些示例中，所述固定部的延伸方向与所述发热管的延伸方向平行，所述安装部的延伸方向与所述固定部的延伸方向垂直。
在一些示例中，所述缓冲件形成缓冲垫圈，所述缓冲垫圈套设于所述发热管，且所述缓冲垫圈位于所述配合孔且与所述配合孔的孔沿配合。
在一些示例中，所述缓冲件设有安装孔，所述发热管穿设于所述安装孔，且所述发热管的外周面与所述安装孔的孔沿之间的间隙小于所述发热管的外周面与所述配合孔的孔沿之间的间隙。
在一些示例中，所述缓冲件邻近所述配合孔设置且与所述壳体的侧壁固定连接，所述发热管与所述缓冲件间隙配合或所述发热管与所述缓冲件止抵配合。
在一些示例中，所述缓冲件为非金属件。
根据本申请实施例的烹饪装置，所述缓冲件包括沿所述发热管长度方向间隔布置的两个，两个所述缓冲件的结构相同或者不同。
根据本申请实施例的烹饪装置，所述发热管包括：外管，所述外管的端部设有端子；石墨发热片，所述石墨发热片设于所述外管且通过引线与所述端子连接，其中，所述石墨发热片形成有压型结构。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请一个实施例的烹饪装置的结构示意图；
图2是根据本申请另一个实施例的烹饪装置的结构示意图；
图3是根据本申请又一个实施例的烹饪装置的结构示意图；
图4是根据本申请再一个实施例的烹饪装置的结构示意图；
图5是根据本申请一个实施例的发热管的装配关系示意图；
图6是根据本申请一个实施例的发热管的受力示意图；
图7是根据本申请一个实施例的发热管的内力示意图；
图8是根据本申请一个实施例的发热单元的结构示意图。
附图标记：
烹饪装置100，
壳体10，烹饪腔11，配合孔12，
发热管20，外管21，石墨发热片22，发热单元23，第一部231，第二部232，
缓冲件30，固定部31，安装部32，安装孔33。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
下面参考图1-图8描述根据本申请实施例的烹饪装置100。
如图1-图8所示，根据本申请一个实施例的烹饪装置100包括：壳体10、发热管20和缓冲件30，壳体10限定有烹饪腔11，发热管20的至少一部分位于烹饪腔11，缓 冲件30与壳体10配合，这里的配合可以是固定连接，即缓冲件30固定在壳体10上，也可以通过其他结构件固定在烹饪装置100内且与壳体10实现一相对稳定的配合关系。
缓冲件30的至少一部分位于壳体10和发热管20之间，以避免发热管20直接与壳体10发生接触，其中，发热管20可以通过缓冲件30与壳体10连接，即发热管20通过缓冲件30间接安装在壳体10上，而不直接安装在壳体10上；发热管20也可以通过其他结构件固定在烹饪装置上，且在缓冲件30的作用下不会与壳体10接触碰撞等。
根据本申请实施例的烹饪装置100，通过在发热管20可以壳体10之间设置缓冲件30，在烹饪装置100受到机械冲击或跌落时，由壳体10壁面传递的应力会被缓冲件30吸收，降低发热管20受到的冲击应力，从而避免发热管20发生断裂等，由此使得发热管20具有抗冲击防断裂的优点，且烹饪装置100的整体结构简单，成本低，使用性能好，使用寿命长。
其中，这里的烹饪装置100可以为蒸烤箱、烤炉、微波炉等，发热管20为烹饪装置100内的核心部件，发热管20的加热效率，响应速度，冲击电流等为衡量烹饪装置100性能的重要指标。目前，市场上存在的大多类型的发热管均为线性加热模式，其辐射传热指向为发热管径向四周，该种加热模式存在加热分散，能量利用率低下等问题；且大部分的发热管响应速度较慢，从通电开始到发热管表面加热到最高温需要几十秒甚至更久；此外，发热管的发热丝的电阻率存在随温度变化的特性，在该过程中会存在较大的冲击电流。为此，本申请实施例的发热管20采用石墨片发热管20，石墨片发热管20具有响应速度快，加热效率高，冲击电流小的特点。
如图1所示，在一些具体的示例中，发热管20包括：外管21和石墨发热片22，外管21的两端设有端子，石墨发热片22设置在外管21内，且石墨发热片22通过引线与端子连接，其中，外管21可以为石英管，外管21内可以填充惰性气体。
在一些实施例中，石墨发热片22形成有压型结构，压型结构包括多个结构相同的压型单元，每个压型单元形成“几”字形，多个压型单元相互连接形成一个压型结构，通过改变压型结构可以使发热管20实现不同的功率，具体而言，可以改变压型结构的参数，这里压型结构的参数可以为石墨发热片22的宽度、压型单元上每段的宽度和长度、压型结构总长度、相邻两个压型结构之间的距离以及压型结构与端子之间的距离等，通过改变压型结构的参数调节石墨发热片22的电阻，进而达到调节发热管20功率以及强度的目的。
在一些示例中，石墨发热片22包括主发热段和缓冲段，缓冲段设置在石墨发热片22的两端，主发热段设置在石墨发热片22的中部，且位于两端的缓冲段之间，主发热 段上形成有压型结构，其中，缓冲段可以设有压型结构，也可以不包含任何压型结构，石墨发热片22每端的缓冲段可以为一个，也可以为多个，且石墨发热片22两端的缓冲段可对称设置，也可不对称设置，通过在主发热段的两端设置缓冲段，可以提高石墨发热片22的抗冲击性能，防止石墨发热片22受到外界冲击时断裂。
具体而言，作为发热片基体的石墨片基体脆性较大，受到外力冲击时易发生发热片的断裂。在石墨片基体上设置缓冲段有助于减缓其受到的外力冲击，进而减少发热片因受到外力冲击发生断裂。为了方便理解，下面对该发热片可以实现上述有益效果的原理进行简单说明：
以具有发热管的电烤箱为例，参考图5，在发热管20装入电烤箱的装配过程中，发热管20与电烤箱壁面间接触为刚性接触，即发热管20与电烤箱壁面的装配关系可简化成一个固定梁结构。参考图6，对发热管的受力进行分析，在电烤箱跌落的过程中发热管承受来自烤箱壁面传递的载荷，该载荷可认为在发热管上均匀分布，故发热管上任一处，如距离发热管端部长度为x处的受力为：
Figure PCTCN2021116853-appb-000001
其中q为电烤箱跌落过程中发热管承受来自烤箱壁面传递的载荷，l为发热管的总长度。参考图7，对于发热管的两端处，其在跌落过程中受力为
Figure PCTCN2021116853-appb-000002
对于发热管的中间位置，即距离发热管两端距离x为l/2时，其在发热管跌落过程中的受力为0。由于发热管内的发热片上需进行压型处理以形成弯折状的发热单元23，从而提高发热片发热效率，即发热片局部区域较窄，如图8中的第一部231和第二部232，该部分区域受力面积较小，故该区域受到的切应力较大。由上述的内力示例图可知，在发热管的两端受到切应力较大，易达到发热片材料的极限切应力，从而使得发热片发生断裂。在本申请中提出了一种具有缓冲压型结构的发热片，通过在发热片两端设置局部区域较宽的缓冲段，从而降低发热片端部结构受到的切应力，提高发热片的抗冲击性能，避免在跌落过程中发热管中的发热片发生断裂，使得发热管失去发热性能。
由此，根据本申请的实施例的烹饪装置100，通过采用石墨发热管20，既提高了加热效率，又提高了相应速度，使得烹饪装置100实现了快速升温的功能。
根据本申请的一个实施例，由于石墨发热管20中石墨发热片22的脆性较大，为了避免在烹饪装置100受到机械冲击或跌落时，导致石墨发热片22断裂等，将石墨片发热管20通过缓冲件30固定在壳体10上，缓冲件30包括两个，两个缓冲件30沿发热管20长度方向间隔布置，其中，两个缓冲件30的结构可以相同，即发热管20的两端 通过两个相同结构的缓冲件30固定在壳体10上；两个缓冲件30的结构也可以不同，即发热管20的两端通过两个不同结构的缓冲件30固定在壳体10上。
如图1-图4所示，根据本申请的一个实施例，壳体10的侧壁具有配合孔12，发热管20穿设在配合孔12处，这里的配合孔12与发热管20的形状相配合，例如发热管20的端部形状为圆形时，配合孔12为圆形孔；发热管20的端部形状为方形时，配合孔12为方形孔，发热管20的外周面与配合孔12的孔沿间隙配合，也就是说，配合孔12的孔径大于发热管20的径向尺寸，发热管20不与壳体10产生直接接触，由此避免壳体10受到的冲击力作用至发热管20，同时便于发热管20的装配。
如图1所示，在一些示例中，发热管20的外周面与配合孔12的孔沿之间的距离为S，可以理解的是，在配合孔12为圆孔时，这里的距离S为沿配合孔12径向上的距离，在配合孔12为方孔时，这里的距离S为垂直于任意边上距离，其中，距离S过大会导致烹饪腔与外界过多连通产生热交换等，同时影响整体结构制造和美观性，距离S过小会影响发热管20的安装和抗冲击性能，在本示例中，S大于1mm，或者S等于1mm，在一些实施例中，S的范围在1.5mm至5mm之间，即S可以为1.5mm，S也可以为5mm，S还可以大于等于1.5mm或者小于等于5mm，例如，S为2mm、2.5mm、3mm、3.5mm、4.5mm等。
在一些实施例中，S的范围在2mm至4mm之间，即S可以为2mm，S也可以为4mm，S还可以大于等于2mm或者小于等于4mm，例如，S为2mm、2.5mm、3mm、3.5mm等，将发热管20的外周面与配合孔12的孔沿之间的距离S限定在该范围内，既可以保证发热管20具有有效的抗冲击性能，又可以避免烹饪腔与外界连通空隙过大影响烹饪效果。
如图1所示，在一些示例中，缓冲件30包括：固定部31和安装部32，固定部31的一端与壳体10配合连接，由此实现缓冲件30在壳体10上的固定，固定部31的另一端向远离烹饪腔11的方向延伸，安装部32的一端与固定部31的另一端连接，安装部32的另一端形成自由端，安装部32与壳体10间隔开布置，发热管20的端部与安装部32紧固连接，实现发热管20的安装固定；在一些实施例中，发热管20与安装部32邻近自由端的部分配合连接，由此在烹饪装置100受到机械冲击或跌落时，由壳体10壁面传递的应力在缓冲件30处被吸收，发热管20不与壳体10直接接触，从而降低了发热管20受到的冲击应力，避免了发热管20的断裂。
如图1所示，在一些示例中，安装部32与配合孔12位置对应，这里的位置对应可以是安装部32在壳体10侧壁上的投影覆盖配合孔12，由此在发热管20安装时，发热 管20的一部分伸出配合孔12，且发热管20的端部与安装部32固定连接，既有利于发热管20的安装固定，又可以保证在发热管20安装到位后，发热管20的外周面即可与配合孔12的孔沿间隔布置，由此避免在发热管20安装收到挤压破损等。
如图1所示，在一些示例中，缓冲件30设在壳体10的外侧，即壳体10的背离烹饪腔11的一侧，具体而言，固定部31的一端与壳体10外侧固定连接，固定部31与壳体10的连接处设有辅助连接件，以保证固定部31在壳体10外侧的稳定性，安装部32与固定部31的另一端连接，使得安装部32完全位于壳体10的外侧，且安装部32与壳体10间隔布置，由此保证安装部32形成有一定的可变形空间，同时避免发热管20安装后与壳体10碰撞等。
如图1所示，在一些示例中，发热管20沿水平方向延伸，固定部31同样沿水平方向延伸，安装部32沿竖直方向延伸，安装部32的延伸方向垂直于固定部31的延伸方向，由此，安装部32的上端与固定部31直接连接，或者通过过渡结构连接，安装部32的下端形成自由端，其中，安装部32与固定部31可以为一体成型结构件，也可以通过其他连接结构紧固连接，且安装部32位于发热管20的端部，发热管20的端部可以直接与安装部32固定连接，整体结构紧凑，便于烹饪装置100的整体布局。
如图2所示，在另一些示例中，缓冲件30形成缓冲垫圈，缓冲垫圈套设在发热管20上，由此在发热管20插接至配合孔12内时，通过缓冲垫圈与配合孔12配合，避免了发热管20与壳体10产生刚性接触，即通过在增大发热管20与配合孔12的孔沿之间的距离的基础上，在发热管20与壳体10之间增加缓冲件30，在烹饪装置100受到外力冲击时，应力的传递会经过缓冲垫圈，而缓冲垫圈由于自身的弹性会吸收部分的应力，使得发热管20承受的应力降低，从而达到保护发热管20的作用。其中，这里的缓冲垫圈可以为橡胶圈、硅胶垫圈、弹簧片等。
如图4所示，在一些示例中，缓冲件30上设有安装孔33，发热管20穿设在安装孔33内，其中，发热管20的外周面与安装孔33的孔沿之间的间隙为S`，发热管的外周面与配合孔12的孔沿之间的间隙S，S`小于S，由此在发热管20振动时，首先接触到缓冲件30，在安装孔33的限位作用下，发热管20不会与配合孔12的孔沿接触，从而避免了发热管20与壳体10的金属侧壁碰撞等，实现对发热管20的保护作用。
如图4所示，在一些示例中，缓冲件30与壳体10的侧壁固定连接，缓冲件30可以形成缓冲板，且缓冲件30位于邻近配合孔12的位置处，配合孔12的孔径大，安装孔33的孔径小，由此保证发热管20始终不与配合孔12的孔沿发生接触。
发热管20与缓冲件30采用间隙配合的方式，即发热管20的外周面与安装孔33的 孔沿之间的间隙为S`大于0，在此状态下，缓冲件30上的安装孔33对发热管20起到限位作用，在在发热管20振动时与发热管20接触，发热管20的外壁面始终与配合孔12间隙配合，发热管20相对于壳体10实现悬空，发热管20的两端可以通过其他结构件固定在烹饪装置100上。
在另一些示例中，发热管20与缓冲件30止抵配合，也就是说，缓冲件30与壳体10的侧壁固定连接，且缓冲件30通过安装孔33直接套设在发热管20上，发热管20的外周面与安装孔33的孔沿之间的间隙为S`为0，缓冲件30可以对发热管20起到固定的作用。
在本实施例中，缓冲件30为非金属件，避免缓冲件30与发热管20接触时导致发热管20损坏等，例如缓冲件可以为云母片，云母片具有绝缘及低损失的热阻功能，同时与发热管20接触不会造成发热管20的损坏。
如图1所示，根据本申请的第一个具体的实施例，发热管20的外周面与配合孔12的孔沿之间沿配合孔12的径向的距离S为3mm，发热管20两端的缓冲件30结构相同，每个缓冲件30设置在壳体10的外侧，且缓冲件30包括固定部31和安装部32，固定部31设置在壳体10上方，且固定部31的一端与壳体10固定连接，固定部31的另一端水平向外延伸，安装部32沿竖直方向延伸，且安装部32的上端与固定部31的另一端固定连接，安装部32的下端形成自由端，安装部32与壳体10的外壁面间隔布置，且安装部32的至少一部分与配合孔12的位置对应，发热管20的两端分别伸出对应的配合孔12，且发热管20的两端与对应的安装部32固定连接，由此使得发热管20悬挂在壳体10上，同时缓冲件30可以对发热管20起到限位作用。
在本实施例中，在增大发热管20安装孔位的基础上，通过使发热管20处于悬空状态，而不与壳体10直接接触，在壳体10受到外界冲击时，发热管20两端的缓冲件30可抵消应力的冲击作用，避免发热管20发生断裂等，由此发热管20具有抗冲击防断裂的优点，且烹饪装置100的整体结构简单，成本低，使用性能好，使用寿命长。
如图2所示，根据本申请的第二个具体的实施例，发热管20的外周面与配合孔12的孔沿之间沿配合孔12的径向的距离S为3.8mm，发热管20两端的缓冲件30结构相同，每个缓冲件30形成缓冲垫圈，缓冲垫圈套设在发热管20上，缓冲垫圈与配合孔12的孔沿止抵配合或过盈配合，烹饪装置100内还可以设有限制发热管20活动的其他结构件，在此不作限定。
在本实施例中，在增大发热管20安装孔位的基础上，通过设置缓冲垫圈，避免发热管20与壳体10刚性接触，同时缓冲垫圈可以吸收壳体10受到的冲击应力，从而减少 传递至发热管20上的冲击应力，避免发热管20发生断裂等，由此发热管20具有抗冲击防断裂的优点，且烹饪装置100的整体结构简单，成本低，使用性能好，使用寿命长。
如图3所示，根据本申请的第三个具体的实施例，发热管20的外周面与配合孔12的孔沿之间沿所述配合孔12的径向的距离S为3.5mm，发热管20两端的缓冲件30结构不相同，发热管20的一端套设有缓冲垫圈，发热管20的另一端通过固定在壳体10外侧的缓冲件30实现固定，该缓冲件30的结构与第一个实施例的缓冲件30结构相同，在此不再赘述。
在本实施例中，通过在发热管20的两端设置不同结构的缓冲件30，既可以通过缓冲垫圈可以吸收壳体10受到的冲击应力，又可以通过缓冲件30实现固定和缓冲应力，提高发热管20的抗冲击防断裂性能，且发热管20安装方便，烹饪装置100的使用性能好，使用寿命长。
当然，还可以在发热管20的两端均设置固定在壳体10外侧的缓冲件30，同时在发热管20上套设两个缓冲垫圈，以与发热管20两端的配合孔12进行配合，进一步提高发热管20的抗冲击防断裂性能，提高烹饪装置100的稳定性和可靠性。
如图4所示，根据本申请的第四个具体的实施例，发热管20的外周面与配合孔12的孔沿之间沿所述配合孔12的径向的距离S为4.5mm，发热管20两端的缓冲件30结构相同，均形成具有安装孔33的缓冲板，例如云母片，缓冲板固定在壳体10外侧，且缓冲板与壳体10的侧壁固定连接，以保证缓冲件30的稳定性，缓冲板中部限定有安装孔33，发热管20穿设在安装孔33内，发热管20的外周面与安装孔33的孔沿之间的间隙为S`，S`大于0且小于S，例如S`为1mm。
在本实施例中，在发热管20振动时，发热管20首先接触到缓冲件30，在安装孔33的限位作用下，发热管20不会与配合孔12的孔沿接触，从而避免了发热管20与壳体10的金属侧壁碰撞等，实现对发热管20的保护作用。
此外，上述实施例中发热管20两端的缓冲件30结构也可以不同，例如发热管20的一端为具有安装孔33的缓冲板，发热管20的另一端套设有缓冲垫圈，或者发热管20的另一端通过固定在壳体10外侧的缓冲件30实现固定，该缓冲件30的结构与第一个实施例的缓冲件30结构相同，在此不再赘述。
根据本申请实施例的烹饪装置100的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本申请的描述中，除非另有明确的规定和限定，第一特征在第二特征“之上”或“之下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触 而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (15)

  1. 一种烹饪装置，其特征在于，包括：
    壳体，所述壳体限定有烹饪腔；
    发热管，所述发热管是石墨片发热管，所述发热管的至少一部分位于所述烹饪腔；
    缓冲件，所述缓冲件与所述壳体配合且所述缓冲件的至少一部分设于所述壳体与所述发热管之间。
  2. 根据权利要求1所述的烹饪装置，其特征在于，所述壳体的侧壁具有配合孔，所述发热管穿设于所述配合孔，且所述发热管的外周面与所述配合孔的孔沿间隙配合。
  3. 根据权利要求2所述的烹饪装置，其特征在于，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中，S大于1mm，或者S等于1mm。
  4. 根据权利要求3所述的烹饪装置，其特征在于，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中，S等于1.5mm，或者S等于5mm，或者S大于1.5mm且小于5mm。
  5. 根据权利要求3所述的烹饪装置，其特征在于，所述发热管的外周面与所述配合孔的孔沿之间的距离为S，其中，S等于2mm，或者S等于4mm，或者S大于2mm且小于4mm。
  6. 根据权利要求2-5中任一项所述的烹饪装置，其特征在于，所述缓冲件包括：
    固定部，所述固定部的一端与所述壳体配合连接且另一端向远离所述烹饪腔的方向延伸；
    安装部，所述安装部的一端与所述固定部的所述另一端连接，所述安装部的另一端形成自由端，所述发热管适于与所述安装部配合连接。
  7. 根据权利要求6所述的烹饪装置，其特征在于，所述安装部与所述配合孔位置对应，所述发热管穿设于所述配合孔且所述发热管的端部与所述安装部固定连接。
  8. 根据权利要求6所述的烹饪装置，其特征在于，所述固定部位于所述壳体的背离所述烹饪腔的一侧，所述安装部位于所述壳体的背离所述烹饪腔的一侧且所述安装部与所述壳体间隔布置。
  9. 根据权利要求6所述的烹饪装置，其特征在于，所述固定部的延伸方向与所述发热管的延伸方向平行，所述安装部的延伸方向与所述固定部的延伸方向垂直。
  10. 根据权利要求2-5中任一项所述的烹饪装置，其特征在于，所述缓冲件形成缓冲垫圈，所述缓冲垫圈套设于所述发热管，且所述缓冲垫圈位于所述配合孔且与所述配合孔的孔沿配合。
  11. 根据权利要求2-5中任一项所述的烹饪装置，其特征在于，所述缓冲件设有安装孔，所述发热管穿设于所述安装孔，且所述发热管的外周面与所述安装孔的孔沿之间的间隙小于所述发热管的外周面与所述配合孔的孔沿之间的间隙。
  12. 根据权利要求11所述的烹饪装置，其特征在于，所述缓冲件邻近所述配合孔设置且与所述壳体的侧壁固定连接，所述发热管与所述缓冲件间隙配合或所述发热管与所述缓冲件止抵配合。
  13. 根据权利要求11所述的烹饪装置，其特征在于，所述缓冲件为非金属件。
  14. 根据权利要求1-13中任一项所述的烹饪装置，其特征在于，所述缓冲件包括沿所述发热管长度方向间隔布置的两个，两个所述缓冲件的结构相同或者不同。
  15. 根据权利要求1-14中任一项所述的烹饪装置，其特征在于，所述发热管包括：
    外管，所述外管的两端设有端子；
    石墨发热片，所述石墨发热片设于所述外管且通过引线与所述端子连接，
    其中，所述石墨发热片形成有压型结构。
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CN112336212A (zh) * 2020-10-30 2021-02-09 广东美的厨房电器制造有限公司 烹饪装置

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