CN104720567B - Cooker - Google Patents

Abstract

The invention belongs to the field of living electric apparatus and discloses a cooker. The cooker comprises an outer pot, a liner arranged in the outer pot, a heater arranged in the outer pot and located below the liner, and a heat shield arranged between the liner and the outer pot in an spaced mode, wherein an air heating cavity is defined between the heat shield and the liner, an air heat insulation cavity is defined between the heat shield and the outer pot, the heater is an infrared radiation heater which is installed at the bottom of the heat shield in a penetrating mode and can radiate heat into the air heating cavity, and a first axial distance exists between the bottom surface of the liner and the top surface of the infrared radiation heater. According to the cooker, the liner is not heated directly in a contact mode, radiation heating is conducted on air in the air heating cavity by means of the infrared radiation function of the infrared radiation heater, so that hot air is formed, then the outer surface of the liner is comprehensively heated in a three-dimensional mode through the hot air flowing in the air heating cavity, in this way, rapid and even heating of the cooker is achieved effectively, and the cooking effect of the cooker is improved.

Description

Cooker

Technical field

The invention belongs to living electric apparatus field, particularly relate to cooker.

Background technology

The mode of heating of existing electric cooking pot is generally heating tape mode of heating or metal heating tray mode of heating.But, In place of both mode of heatings the most all Shortcomings, concrete embodiment is as follows:

1) relatively low due to the power of heating tape heating, so, heating tape mode of heating can not realize electric cooking pot and quickly heat Effect, had a strong impact on the efficiency of heating surface of electric cooking pot.

2), as shown in Figure 8, in the electric cooking pot of existing metal heating tray formula, inner bag 2 ＇ is contained directly in outer pot 1 ＇, and Metal heating tray 3 ＇ is heated to be contact heat transfer to inner bag 2 ＇, i.e. metal heating tray 3 ＇ is by its end face and inner bag 2 ＇ bottom surface Contact realize inner bag 2 ＇ bottom-heated, it is seen then that metal heating tray 3 ＇ mode of heating is straight to inner bag 2 ＇ local location Connect heating, so, the food in inner bag 2 ＇ can be caused to there is the temperature difference, had a strong impact on the culinary art effect of food.Additionally, due to its The side margins of temperature sensor 5 ＇ upper cover body is direct contacting metal heat-generating disc 3 ＇, therefore, in heating process, metal generates heat Heat on dish 3 ＇ can be delivered on the lid of temperature sensor 5 ＇, thus have impact on temperature sensor 5 ＇ to perceived inner bag 2 ＇ The judgement of temperature, and then easily occur because temperature sensor 5 ＇ error in judgement causes electric cooking pot to cook bad phenomenon, serious shadow Ring the culinary art reliability of electric cooking pot.

Summary of the invention

It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that cooker, which solve existing cooker without Method realizes quickly, the technical problem of uniformly heating.

For reaching above-mentioned purpose, the technical solution used in the present invention is: cooker, including outer pot, is located in described outer pot Inner bag, it is located in described outer pot and heater below described inner bag and every being located between described inner bag and described outer pot Heat shield, encloses formation one air heating chamber, between described heat shield and described outer pot between described heat shield and described inner bag Enclose formation one air chamber；Described heater is installed on bottom described heat shield for wearing and can heat chamber to described air Between the infrared-radiation heater of interior radiations heat energy, and the end face of the bottom surface of described inner bag and described infrared-radiation heater There is the first axial spacing.

Preferably, described heat shield includes the main part being contained in described outer pot and is convexly equipped in described main part one end also The convex screens portion being exposed to outside described outer pot, described heat shield is installed by described screens portion and is positioned on described outer pot.

Preferably, the top of described outer pot is convexly equipped with support lugn, and described screens portion includes being supported in described support lugn On supporting part and be convexly equipped in below described supporting part and be sheathed on the radial direction limiting section outside described support lugn.

Preferably, described supporting part is several circumferentially spaced lugs being convexly equipped in described main part periphery；Or, institute Stating supporting part is the collar flange being convexly equipped in described main part periphery.

Preferably, described heat shield is provided with hollow cavity, is formed with position limiting structure between described inner bag and described heat shield So that described inner bag forms described air heating chamber after being placed in the described hollow cavity of described heat shield.

Preferably, described heat shield has recessed locating slot in described screens portion and the recessed end along described locating slot The described hollow cavity that wall is downwardly extending, described inner bag includes the gallbladder body being arranged in described hollow cavity and is located at described Gallbladder body upper periphery face the accommodating edge, location being positioned in described locating slot, described locating slot is common with edge, described location Constitute described position limiting structure.

Preferably, connection described air heating chamber it is formed with on described heat shield and/or on described inner bag big with outside The spout hole of gas.

Preferably, described infrared-radiation heater includes heating wire, uses pottery mud sinter molding in described heating wire Outer ceramics insulator and be located at the lead-in wire that described ceramic insulation is external, one end of described lead-in wire is connected with described heating wire.

Preferably, above-mentioned cooker also includes that temperature sensor, described infrared-radiation heater are provided with installing hole, institute State temperature sensor to wear and be installed in described installing hole, and the end face of described temperature sensor abuts with the bottom surface of described inner bag Coordinate.

Preferably, above-mentioned cooker is electric cooking pot or electric cooker.

The cooker that the present invention provides, uses infrared-radiation heater to replace the heater of existing cooker, available infrared The infrared radiation function of beta radiation heater so that infrared-radiation heater not only can carry out radiation heating but also can be right to inner bag The air of inner bag periphery carries out radiation heating, even if so that infrared-radiation heater contact with inner bag also can be hot by it Amount radiation is transferred on inner bag, is beneficial to realize the non-contact thermal of cooker heater.Meanwhile, its by inner bag and outer pot it Between set up a heat shield, and make between inner bag and heat shield, to form an air heating chamber, the bottom surface making inner bag and infrared radiation The first axial spacing is there is between the end face of heater, so, in the concrete heating process of cooker, infrared-radiation heater It is not that directly inner bag is carried out contact heating, but by the air of air heating intracavity is carried out radiation heating and formed Hot-air, and by flow in air heating intracavity hot-air the outer surface of inner bag is carried out omnibearing stereo heating, and then Make the food thermally equivalent in inner bag, it is achieved that the heats quick, uniform of cooker, improve the culinary art effect of cooker. Further, it encloses formation one air chamber also by heat shield and outer pot and carries out preventing in heating process heat towards outward Distributing of pot side, place, thus it is beneficial to reduce the waste of energy, and it is beneficial to improve the cooking efficiency of cooker.

Specifically, when the structure of above-mentioned cooker is applied in electric cooking pot or electric cooker, electricity can be effectively improved and stew Pot or the culinary art effect of electric cooker；When being particularly applied in electric cooking pot, the mouthfeel that electric cooking pot stews can be improved well.

Accompanying drawing explanation

Fig. 1 is the generalized section of the cooker that the embodiment of the present invention provides；

Fig. 2 is the close-up schematic view in Fig. 1 at A；

Fig. 3 is the close-up schematic view in Fig. 1 at B；

Fig. 4 is the schematic perspective view of the heat shield that the embodiment of the present invention provides；

Fig. 5 is the generalized section of the infrared-radiation heater that the embodiment of the present invention provides；

Fig. 6 is that the section that the inner bag that the embodiment of the present invention provides uses heat shield to be placed on as support support shows It is intended to；

Fig. 7 is the inner bag assembling schematic perspective view with heat shield of embodiment of the present invention offer；

Fig. 8 is the generalized section of the electric cooking pot of the metal dish heated type that prior art provides.

Detailed description of the invention

In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and It is not used in the restriction present invention.

It should be noted that when element is referred to as on " being fixed on " or " being arranged at " another element, it can be direct On another element or may be simultaneously present centering elements.When an element is known as " connection " another element, it Can be to be directly connected to another element or may be simultaneously present centering elements.

Also, it should be noted the orientation term such as left and right, upper and lower, top in the present embodiment, end, it is only the most general Read or with the normal operating condition of product as reference, and should not be regarded as restrictive.

As shown in figures 1 and 3, the cooker that the embodiment of the present invention provides, the inner bag 2 including outer pot 1, being located in outer pot 1, set Heater 3 in outer pot 1 and below inner bag 2 and every the heat shield 4 being located between inner bag 2 and outer pot 1, heat shield 4 with Enclose formation one air heating chamber 100 between inner bag 2, between heat shield 4 and outer pot 1, enclose formation one air chamber 200；Add Hot device 3 is to wear be installed on bottom heat shield 4 and can heat the infrared-radiation heater 3 of radiations heat energy in chamber 100 to air, And the end face of the bottom surface (wall being positioned at lowermost end of inner bag 2) of inner bag 2 and infrared-radiation heater 3 (infrared radiation adds The wall being positioned at top of hot device 3) between there is the first axial spacing H1.First axial spacing H1 refers specifically to the end of inner bag 2 The end face of face and infrared-radiation heater 3 projector distance in the axial direction of infrared-radiation heater 3.First axial spacing The setting of H1, can make infrared-radiation heater 3 is not directly inner bag 2 to be carried out contact heating.Heat shield 4 is concrete Heat-proof quality preferably material is used to make, such as nonmetal adiabator etc..The cooker that the embodiment of the present invention provides, is specifically adding In thermal process, its infrared-radiation heater 3 is not directly inner bag 2 to be carried out contact heating, but utilizes infrared ray spoke The infrared radiation function penetrating heater 3 carries out radiation heating to the air in air heating chamber 100 and forms hot-air, and heat Air can flow in air heating chamber 100, thus can form a hot-air convection passage between heat shield 4 and inner bag 2, enters And by the hot-air in air heating chamber 100 that flows, the outer surface of inner bag 2 can be carried out omnibearing stereo heating so that interior Food 7 thermally equivalent in gallbladder 2, effectively achieves the heats quick, uniform of cooker, improves the culinary art effect of cooker. Meanwhile, it encloses formation one air chamber 200 also by heat shield 4 and outer pot 1, carry out preventing in heating process heat towards Distributing of side, outer pot 1 place, thus it is beneficial to reduce the waste of energy, and it is beneficial to improve the cooking efficiency of cooker.

Preferably, the first axial spacing H1 is more than or equal to 3mm, so, the heat that beneficially infrared-radiation heater 3 produces Amount preferably radiates in the air in air heating chamber 100, thus in being beneficial to better ensure that inner bag 2 food 7 be heated uniform Property.

Preferably, shown as shown in Figure 1, Figure 3 and Figure 4, heat shield 4 includes the main part 41 being contained in outer pot 1 and is convexly equipped in Main part 41 one end the convex screens portion 42 being exposed to outside outer pot 1, screens portion 42 is specifically located at main body along the radial convex of main part 41 On the outer surface on top, portion 41, heat shield 4 is installed by screens portion 42 and is positioned on outer pot 1.In the present embodiment, heat shield 4 The connection with outer pot 1 is realized, it is not necessary to add any intermediate connecting part, decrease product by the screens portion 42 of himself Number of components；And due to its install heat shield 4 time only heat shield 4 need to be positioned over downwards on outer pot 1, dismantle heat shield 4 time Only heat shield 4 upwards need to be chosen out, therefore, the disassembly process of heat shield 4 is very simple, is beneficial to improve the dismounting effect of heat shield 4 Rate.

Preferably, as shown in Figure 1 and Figure 4, the top of outer pot 1 is convexly equipped with support lugn 11, and screens portion 42 includes being supported in Supporting part on support lugn 11 421 and be convexly equipped in below supporting part 421 and be sheathed on the radial direction limiting section outside support lugn 11 422, radially form the draw-in groove inserted for support lugn 11 between limiting section 422 and main part 41.Heat shield 4 is installed on outer pot 1 After on, under the effect of himself gravity, supporting part 421 can be made to fit tightly on support lugn 11, so, by supporting Portion 421 coordinates with supporting of support lugn 11, can effectively realize the outer pot 1 support to heat shield 4, and it is perpendicular to limit heat shield 4 The most downward moving displacement；And radially limiting section 422 coordinates with the suit of support lugn 11, can limit moves radially displacement.

Preferably, supporting part 421 is several circumferentially spaced lugs being convexly equipped in main part 41 periphery, so, passes through The setting of lug can effectively strengthen the radial dimension on heat shield 4 top so that lug can be stuck in outside outer pot 1, it is achieved that heat shield 4 Clamping matching with outer pot 1；Simultaneously as lug simply local increases the radial dimension of heat shield 4, therefore, it is the most real On the premise of existing heat shield 4 and outer pot 1 clamping matching, can beneficially reduce the material cost of heat shield 4.In the present embodiment, lug Be provided with two, and two lugs be symmetrically set in the both sides of main part 41, its screens is reliable and heat shield 4 the cost of material is low；Can To understand ground, the quantity that arranges of lug is not limited to two.Of coursing, in concrete application, supporting part 421 is alternatively convexly equipped in main body The collar flange of periphery, portion 41, i.e. supporting part 421 are alternatively the circumferentially continuous circulus closed and arrange.

Preferably, as shown in Fig. 1, Fig. 4, Fig. 6 and Fig. 7, heat shield 4 is provided with hollow cavity 402, inner bag 2 and heat shield 4 it Between be formed with position limiting structure so that inner bag 2 forms air heating chamber 100 after being placed in the hollow cavity 402 of heat shield 4.Specifically, During heat shield 4 has a recessed locating slot 401 in screens portion 42 and the recessed diapire along locating slot 401 is downwardly extending Empty inner chamber 402, wherein, locating slot 401 is specifically formed in screens portion 42 along the top down of heat shield 4 is recessed, hollow cavity 402 specifically downwardly extend setting along the recessed diapire of heat shield 4 is formed on screens portion 42 and main part 41, and locating slot 401 Radial dimension more than the radial dimension of hollow cavity 402.Inner bag 2 includes the gallbladder body 21 being arranged in hollow cavity 402 and sets In gallbladder body 21 top the accommodating edge, location 22 being positioned in locating slot 401, locating slot 401 collectively forms with edge 22, location Position limiting structure.The outer wall of gallbladder body 21 encloses formation above-mentioned air heating chamber 100 with the inwall of hollow cavity 402.Edge 22, location During specifically the radial convex along gallbladder body 21 is located on the outer surface on gallbladder body 21 top, and outer pot 1 radial dimension of gallbladder body 21 is less than The radial dimension of empty inner chamber 402, the gabarit radial dimension at edge 22, location is more than the radial dimension of hollow cavity 402.Certainly, limit Bit architecture can also is that other forms, such as can be by all convex tendon (not shown) formed on heat shield 4 inner surface and inner bag 2 Periphery formed position limiting structure.In the present embodiment, inner bag 2 is realized inner bag 2 existed by coordinating of location edge 22 and locating slot 401 Installation location in heat shield 4, is equivalent to inner bag 2 simply insertion and is installed in heat shield 4, so, owing to it is installing inner bag 2 Time only inner bag 2 need to be positioned over downwards on heat shield 4, dismantle inner bag 2 time only inner bag 2 upwards need to be chosen in heat shield 4 Go out, therefore, it makes inner bag 2 the simplest with the disassembly process of heat shield 4.And due to the connection between inner bag 2 and heat shield 4 not Need to add any intermediate connecting part, therefore, which reduce the number of components of cooker.

Preferably, as shown in figures 1 to 6, have one the between lateral wall and the medial wall of hollow cavity 402 of gallbladder body 21 Two radial spacing L2, and this second radial spacing L2 is 3mm～10mm, and the direction extended to inner bag 2 top bottom inner bag 2 Upper second radial spacing L2 is gradually reduced.Second radial spacing L2 refers specifically to the lateral wall of gallbladder body 21 and the interior of hollow cavity 402 Sidewall is at the projector distance radially of heat shield 4.If it is to be appreciated that the second radial spacing L2 sets too small, the most easily Cause inner bag 2 that catching phenomenon occurs when being installed on heat shield 4 because of manufacturing tolerance, and can be too small because of air heating chamber 100 volume And the very few phenomenon generation causing the efficiency of heating surface the highest of hot-air in air heating chamber 100 when causing heating；And if the second footpath Set to spacing L2 too much, then easily cause the lost waste of heat, and in also resulting on the premise of outer pot 1 size is constant The phenomenon generation that gallbladder 2 volume is too small.In the present embodiment, the second radial spacing L2 is set between 3mm～10mm, both can prevent There is catching phenomenon when being installed on heat shield 4 in inner bag 2, ensures that cooker has the higher efficiency of heating surface and can reduce heat Scatter and disappear and waste, meanwhile, on the premise of outer pot 1 size is constant, also ensure that inner bag 2 has bigger volume；It addition, mostly In the case of number, the food 7 in inner bag 2 can't extend to the top (i. e. 7 typically will not fill inner bag 2) of inner bag 2, because of This, the form being set to the second radial spacing L2 be gradually reduced extends from the bottom of inner bag 2 to inner bag 2 top, both can compare Relatively concentrate by the food 7 being delivered in inner bag 2 of even heat, the utilization rate of heat can be improved again, its combination property is preferable.

Preferably, the overflow in connection air heating chamber 100 and outside atmosphere it is formed with on heat shield 4 and/or on inner bag 2 Hole 221.As shown in Fig. 1, Fig. 6 and Fig. 7, as a specific embodiments of the present embodiment, it is provided with if running through on edge 22, location Dry the spout hole 221 connected with air heating chamber 100, so so that cooker is in heating process, air heats chamber 100 The unnecessary hot-air of part can flow out outside air heating chamber 100 at spout hole 221, thus prevents gas in air heating chamber 100 The unlimited increase of pressure, and then ensure that the security reliability that product uses, air can be made to heat chamber by arranging spout hole 221 Hot-air in 100 has mobility, prevents the hot-air in air heating chamber 100 from producing temperature difference so that air heating chamber Levels homogeneous temperature in 100, the big I of spout hole 221 adjusts to ensure the sky that air heats in chamber 100 as required The mobility of gas is suitable, thus ensures the air heating chamber 100 uniform heats of levels, of courses, it is also possible to according to not With all convex tendons of being formed on the most above-mentioned heat shield 4 inner surface of position limiting structure on formation spout hole 221, or can also including Gallbladder 2 coordinates formation spout hole 221 between face with heat shield 4.

Preferably, edge 22, location is to be convexly equipped in gallbladder body 21 periphery and circumferentially closed circulus, so, by location The setting at edge 22 can effectively strengthen the radial dimension on inner bag 2 top so that edge 22, location can be stuck in the hollow of heat shield 4 Chamber 402 is outer and is positioned in locating slot 401, it is achieved that inner bag 2 and the clamping matching of heat shield 4；Meanwhile, edge, location 22 is set For circumferentially closed circulus, the spout hole 221 distribution on edge 22, location can be beneficial to.Of course, in concrete application, fixed Edge 22, position also can be set to several circumferentially spaced projections being convexly equipped in gallbladder body 21 periphery, so, it is possible to reach effectively to strengthen The radial dimension of purpose in inner bag 2 top.

Preferably, as shown in figures 1 to 6, the bottom (position being positioned at lowermost end of inner bag 2) of inner bag 2 and heat shield 4 There is one second axial spacing H2, the second axial spacing H2 between bottom (position being positioned at lowermost end of heat shield 4) to refer specifically to The bottom of the bottom of inner bag 2 and heat shield 4 projector distance in the axial direction of heat shield 4.In the present embodiment, heat shield 4 except Can play with inner bag 2 enclose formed air heating chamber 100 and outer pot 1 enclose formed air chamber 200 effect outside, a side Face is alternatively arranged as taking out the instrument of inner bag 2 and uses, i.e. the inner bag 2 loading or unloading operation in outer pot 1 can be by picking and placeing heat shield 4 Operation realizes, so that the loading or unloading operation of inner bag 2 becomes easy；On the other hand it is alternatively arranged as being positioned over table after inner bag 2 takes out Support support on face 8 uses, owing to there is the second axial spacing H2 between bottom and the bottom of heat shield 4 of inner bag 2, therefore, Using heat shield 4 as the support support that inner bag 2 is positioned on desktop 8 use time, can strengthen between inner bag 2 bottom surface and desktop 8 Distance, decreases and is delivered to the heat desktop 8 from inner bag 2, and then avoid due to the spacing of high temperature inner bag 2 with desktop 8 Cross the situation closely causing desktop 8 to be burned to occur.In concrete application, heat shield 4 can be placed by user by holding screens portion 42 It is positioned to take off from outer pot 1 on outer pot 1 or by heat shield 4, and then the inner bag 2 placement in outer pot 1 and taking-up can be realized.

Preferably, the second axial spacing H2 is more than or equal to 5mm.In the present embodiment, when inner bag 2 uses heat shield 4 conduct Supporting support when being positioned on desktop 8, the distance between inner bag 2 bottom surface and desktop 8 is equal to the second axial spacing H2, therefore, by the Two axial spacing H2 set more than or equal to 5mm, can make being at a distance sufficiently large between inner bag 2 bottom surface and desktop 8, such that it is able to The situation avoiding high temperature inner bag 2 to scorch desktop 8 well occurs.

Specifically, as shown in figures 1 to 6, the bottom of heat shield 4 is run through and is provided with and the perforation that connects of air heating chamber 100 403, infrared radiation heating element is arranged in perforation 403, perforation 403 specifically along the diapire of hollow cavity 402 downward through setting It is placed in the bottom of heat shield 4, and the radial dimension of hollow cavity 402 is more than the radial dimension of perforation 403.The setting of perforation 403, Mainly serve for ensuring the heat produced on infrared-radiation heater 3 can heat in chamber 100 to air by Rapid radiating.

Preferably, as it is shown in figure 1, have the between the medial wall of the lateral wall of infrared-radiation heater 3 and perforation 403 Three radial spacing L3, and the 3rd radial spacing L3 is 2mm～5mm.3rd radial spacing L3 refers specifically to infrared-radiation heater 3 The medial wall of lateral wall and perforation 403 at the projector distance radially of heat shield 4.If the 3rd radial spacing L3 sets Little, then easily cause because of manufacturing tolerance infrared-radiation heater 3 to wear when being installed in perforation 403 and catching phenomenon occurs； And if the 3rd radial spacing L3 sets too much, then easily cause too much heat from the 3rd radial spacing L3 scatter and disappear air heating Outside chamber 100, thus cause the lost waste of heat.In the present embodiment, the 3rd radial spacing L3 is set to 2mm～5mm it Between, both can prevent infrared-radiation heater 3 from wearing when being installed in perforation 403 and catching phenomenon had occurred, ensure that cooker had Having the higher efficiency of heating surface and can reduce the lost waste of heat, its combination property is preferable.

Preferably, as shown in Figure 1 and Figure 5, infrared-radiation heater 3 includes heating wire 31, uses pottery mud to sinter into Type ceramics insulator 32 outside heating wire 31 and the lead-in wire 33 being located at outside ceramics insulator 32, one end of lead-in wire 33 and heating wire 31 connect, and ceramics insulator 32 is fastenedly connected outer pot 1 by several securing members 6.In above-mentioned first axial spacing H1 is specially The end face of the bottom surface of gallbladder 2 and ceramics insulator 32 projector distance in the axial direction of ceramics insulator 32.The setting of lead-in wire 33, main Be used for realizing the electrical connection of heating wire 31 and power supply, thus can make power supply can encourage cooker infrared-radiation heater 3 to External radiation heat.The infrared-radiation heater 3 that the present embodiment provides, in concrete manufacture process, is to be imbedded by heating wire 31 Sinter molding together in pottery mud, so, can make cooker infrared-radiation heater 3 have preferable insulating properties, and The cooker infrared-radiation heater 3 making sinter molding has infrared radiation function, and then makes heating by infrared radiation Also the radiation of its heat can be transferred on inner bag 2 even if device 3 does not contact with inner bag 2, be beneficial to realize infrared-radiation heater 3 Non-contact thermal, and it is beneficial to realize the heats quick, uniform of cooker.

Preferably, as shown in Figure 1 and Figure 5, outer pot 1 is provided with quantity first connecting hole identical with securing member 6 quantity (figure Do not indicate), infrared-radiation heater 3 is provided with the second connecting hole 36 that quantity is identical with securing member 6 quantity, and each second connects Hole 36 is arranged with each first connecting hole para-position respectively, and each securing member 6 wears respectively and is installed on each first connecting hole and each second even Connecing in hole 36, the most each securing member 6 wears and is installed in first connecting hole and second connecting hole 36.When each fastening Part 6 wears after being installed in each first connecting hole and each second connecting hole 36 respectively, can be locked by infrared-radiation heater 3 Being fixed on outer pot 1, its installation process is simple, fastening is reliable.

Preferably, securing member 6 is screw, and each second connecting hole 36 is all to run through the light being located on ceramics insulator 32 to lead to Hole, each first connecting hole is all the screwed hole being located on outer pot 1, and each securing member 6 is arranged in each second connecting hole 36 also respectively Threaded each first connecting hole respectively.Light through hole refers specifically to inner wall smooth (not having the technology characteristics such as screw thread, annular knurl, wire drawing) Through hole.All it is set to run through the light through hole being located on ceramics insulator 32 by each second connecting hole 36, the second connecting hole 36 can be made Manufacturing process fairly simple, thus be beneficial to reduce infrared-radiation heater 3 manufacture difficulty；And if connected each second Hole 36 is all set to the screwed hole being located on ceramics insulator 32, then can be affected by ceramics insulator 32 material feature and make spiral shell Stricture of vagina easily or bursts apart, it can be seen that, each second connecting hole 36 is all set to light through hole, also can beneficially ensure the second connecting hole 36 Long-term effectiveness, thus be beneficial to ensure infrared-radiation heater 3 install solid and reliable property.Securing member 6 in the present embodiment Employing thread connecting mode is installed, and its fastening is reliable, easy for installation；And owing to it is for the screw thread threadeded with securing member 6 Hole is not to be located on ceramics insulator 32, therefore, it is beneficial to ensure the long-term effectiveness that securing member 6 is threaded, thus protects Demonstrate,prove the solid and reliable property that infrared-radiation heater 3 is installed.

Or, as the alternate embodiment of above-mentioned securing member 6 set-up mode, securing member 6 is the combination of bolts and nuts, Each first connecting hole is all the light through hole being located on outer pot 1, and each second connecting hole 36 is all located on ceramics insulator 32 for running through Light through hole, in each bolt is arranged in each first connecting hole and each second connecting hole 36 respectively and distinguish threaded each nut. So, it is possible to realize the threaded mounting means of securing member 6, and also due to it not to be provided on ceramics insulator 32 The screwed hole that securing member 6 is threaded, therefore, it also can beneficially ensure the long-term effectiveness that securing member 6 is threaded, thus ensures The solid and reliable property that infrared-radiation heater 3 is installed.Of coursing, in concrete application, securing member 6 also can be set to other yuan Part, such as rivet or latch etc..

Preferably, as shown in Figure 1 and Figure 5, it is exhausted that above-mentioned infrared-radiation heater 3 also includes being sheathed on outside lead-in wire 33 Edge sleeve pipe 34.The setting of insulated sleeve 34, on the one hand can play insulation and the effect of protection, thus be beneficial to improve product lead-in wire 33 The security reliability that product use；On the other hand lead-in wire 33 can be played the effect of location, be beneficial to prevent to go between 33 with in cooker Other parts produce interference.

Preferably, insulated sleeve 34 uses ceramic material to make.Due to the insulating properties of ceramic material, structural strength and just Property all preferable, therefore, insulated sleeve 34 uses ceramic material to make, can make insulated sleeve 34 to the insulation of lead-in wire 33, protection and Locating effect is the most preferable.

Preferably, ceramics insulator 32 is disc-shaped structure, its simple in construction, easily fabricated molding.

Preferably, as depicted in figs. 1 and 2, above-mentioned cooker also includes temperature sensor 5, on infrared-radiation heater 3 Being provided with installing hole 35, temperature sensor 5 wears and is installed in installing hole 35, and the bottom surface of the end face of temperature sensor 5 and inner bag 2 Abut and coordinate.The setting of temperature sensor 5, is mainly used in detecting in real time the temperature of inner bag 2, thus is beneficial to improve cooking of food 7 Effect of preparing food and the combination property of raising cooker.The setting of installing hole 35 on infrared-radiation heater 3, is both beneficial to realize temperature and passes Sensor 5 coordinates with the abutting of inner bag 2, is beneficial to again prevent temperature sensor 5 and infrared-radiation heater 3 from producing interference, The most also can beneficially improve the structural compactness of cooker.

Preferably, as shown in Figure 1 and Figure 5, installing hole 35 runs through the center position being located at ceramics insulator 32, and each second Connecting hole 36 is around being distributed in the periphery of installing hole 35, so, on the one hand can avoid setting of the second connecting hole 36 and installing hole 35 Buy property raw interference；On the other hand after infrared-radiation heater 3 can being made to be installed on outer pot 1, its distribution of force is more equal Even.Heating wire 31 is it is also preferred that cincture is distributed in the periphery of installing hole 35, and so, beneficially heating wire 31 is in ceramics insulator 32 Uniformly, symmetrical, and then be beneficial to ensure the outside radiations heat energy of infrared-radiation heater 3 uniformity.

Preferably, as depicted in figs. 1 and 2, temperature sensor 5 includes sensor body 51 and is sheathed on sensor body 51 Outer outer cup 52, and sensor body 51 floating elastic is installed in outer cup 52, sensor body 51 has to abut with inner bag 2 joins The sensing end face 5121 closed.The bottom surface of inner bag 2 is planar base surface, and the sensing end face 5121 of temperature sensor 5 is flat top surface, i.e. inner bag The bottom surface of 2 and the sensing end face 5121 of temperature sensor 5 are all flat surface, so, are beneficial to ensure that sensor body 51 is with interior Gallbladder 2 has bigger contact area, thus is beneficial to ensure the reliability of temperature sensor 5 temperature-sensitive.Sensor body 51 is floated bullet Property be installed in outer cup 52, specifically refer to sensor body 51 wear be installed in outer cup 52 after still can axially entering along outer cup 52 Row moves up and down, thus is beneficial to ensure that the sensing end face 5121 of sensor body 51 in heating process remains and inner bag 2 Abutting coordinate, and then ensure that the reliability of temperature sensor 5 temperature-sensitive.The present embodiment provide temperature sensor 5, by Set up an outer cup 52 outside sensor body 51, so, can effectively prevent the heat on infrared-radiation heater 3 to be transferred directly to In sensor body 51, thus prevent the heat impact on sensor body 51 temperature-sensitive result on infrared-radiation heater 3, Avoid the heat on infrared-radiation heater 3 and temperature sensor 5 judged the impact of inner bag 2 temperature, so avoid because of The phenomenon that temperature sensor 5 error in judgement causes cooker culinary art bad occurs, it is ensured that the culinary art reliability of cooker.

Preferably, as depicted in figs. 1 and 2, have the between lateral wall and the medial wall of outer cup 52 of sensor body 51 One radial spacing L1, so, is beneficial to be formed an air heat-insulation layer between sensor body 51 and outer cup 52, thus is beneficial to reduce From outer cup 52, it is transferred to the heat in sensor body 51, and then prevents the heat produced on infrared-radiation heater 3 It is transferred in sensor body 51 through outer cup 52, effectively prevent the heat on infrared-radiation heater 3 to temperature sensor 5 Judge the impact of inner bag 2 temperature, it is ensured that the sensor body 51 accuracy to inner bag 2 thermometric.In the present embodiment, first radially Spacing L1 refers specifically to the lateral wall of sensor body 51 and the medial wall of outer cup 52 projector distance radially in outer cup 52.

It is highly preferred that the first radial spacing L1 is 3mm～7mm.If the first radial spacing L1 sets too small, then easily because of Manufacturing tolerance and cause sensor body 51 to wear when being installed in outer cup 52 to occur catching phenomenon, and easily because of outer cup 52 with pass The spaced heat air of sensor body 51 is very few and causes the phenomenon of effect of heat insulation difference between outer cup 52 and sensor body 51 to occur； And if the first radial spacing L1 sets too much, then can cause that outer cup 52 volume is excessive, infrared-radiation heater 3 efficient heat generation The situation generation that area is too small.In the present embodiment, the first radial spacing L1 is set between 3mm～7mm, both can prevent sensing Device body 51 wears and catching phenomenon occurs when being installed in outer cup 52, can be prevented effectively from again infrared-radiation heater 3 and be produced Heat the thermometric accuracy of sensor body 51 is produced impact, still prevent that outer cup 52 volume is excessive, infrared ray spoke simultaneously Penetrating the too small situation of heater 3 efficient heat generation area to occur, its combination property is preferable.

Specifically, as depicted in figs. 1 and 2, sensor body 51 includes interior cup 511, is covered on the lid at interior cup 511 top 512 and the temperature-sensing element (figure does not indicates) that in being located at interior cup 511 and is connected with lid 512 conduction of heat, sensing end face 5121 is for covering The top surface back to temperature-sensing element of body 512, the first above-mentioned radial spacing L1 is formed at lateral wall and the outer cup of interior cup 511 Between the medial wall of 52.Lid 512 specifically uses heat conductivility preferably material to make, so, by the setting of lid 512, Both can ensure that sensor body 51 and inner bag 2 had bigger contact area, ensure that temperature-sensing element can accurately be measured interior Temperature on gallbladder 2.The temperature sensor 5 that the present embodiment provides, forms double a set of cups by interior cup 511 and the combination of outer cup 52 and senses Device structure, can be reduced to a great extent the heat being transferred on temperature-sensing element from infrared-radiation heater 3, it is to avoid due to Heat on infrared-radiation heater 3 is directly radiated, in sensor body 51, temperature sensor 5 judges inner bag 2 temperature Impact.

Preferably, as depicted in figs. 1 and 2, sensor body 51 also includes for being locked temperature-sensing element in lid Fixation clamp 513 on 512.The setting of fixation clamp 513, the installation that can effectively realize temperature-sensing element is fixed, and its easy for installation, knot Structure is simple.Of coursing, in concrete application, temperature-sensing element also can be mounted on lid 512 otherwise, such as temperature-sensitive unit Part can bonding or welding or riveting or screw to be connected to lid 512 first-class.

Specifically, as depicted in figs. 1 and 2, outer cup 52 has the cup 521 can being arranged in installing hole 35 and is convexly equipped in cup Body 521 top the screens flange 522 being stuck in outside installing hole 35.The radial dimension of screens flange 522 is more than the radial direction of cup 521 Size, when specifically installing, outer cup 52 blocks slotting being installed in installing hole 35 from top to bottom, and screens flange 522 is stuck in installing hole 35 Outward.Owing to it realizes temperature sensor 5 at infrared-radiation heater simply by the screens of screens flange 522 with installing hole 35 Installation on 3, therefore, its installation process is very simple, and its number of components being beneficial to reduce product.

Specifically, sensor body 51 can (figure be not by spring or the elastic component such as hollow elasticity plastic tube or shell fragment Indicate) it is installed in outer cup 52, so, all can realize the sensor body 51 floating elastic in outer cup 52 and install.

Preferably, above-mentioned cooker is electric cooking pot or electric cooker or electric pressure cooking saucepan.When the structure by above-mentioned cooker When being applied in electric cooking pot or electric cooker or electric pressure cooking saucepan, electric cooking pot or electric cooker or electric pressure cooking saucepan can be effectively improved Culinary art effect；When being particularly applied in electric cooking pot, electric cooking pot can be improved well and stew the mouthfeel of soup out.

The operation principle of the cooker that the embodiment of the present invention provides is: in the heating process of cooker, heating by infrared radiation Air in air heating chamber 100 can be heated and be formed hot-air by the heat produced on device 3, and hot-air can be at air Flowing in heating chamber 100, thus a hot-air convection passage can be formed between heat shield 4 and inner bag 2；And flow and add in air Hot-air in hot chamber 100 can carry out omnibearing stereo heating to the outer surface of inner bag 2, and then makes the food 7 in inner bag 2 equal Even it is heated, improves culinary art effect and the efficiency of heating surface of cooker.And heat shield 4 and outer pot 1 enclose the air chamber of formation 200, heat distributing towards side, outer pot 1 place in heating process can be prevented, thus can beneficially reduce the waste of energy, and be beneficial to Improve the cooking efficiency of cooker further.Wherein, the setting of outer cup 52 in temperature sensor 5, sensor body 51 can be avoided straight Receive the heat radiation of infrared-radiation heater 3, reduce temperature sensor 5 temperature-sensitive performance dramatically by infrared ray spoke Penetrate the impact of heater 3.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Any amendment, equivalent or the improvement etc. made within god and principle, should be included within the scope of the present invention.

Claims (10)

1. cooker, the inner bag including outer pot, being located in described outer pot and be located in described outer pot and be positioned at below described inner bag Heater, it is characterised in that: also include every be located between described inner bag and described outer pot and in placement positioning outside described When taking off on described outer pot, described inner bag is taken out outside described in described inner bag being positioned over described outer pot time on pot Heat shield in Guo, encloses formation one air heating chamber between described heat shield and described inner bag, the bottom of described heat shield is passed through It is equipped with the perforation connected with described air heating chamber, between described heat shield and described outer pot, encloses formation one air heat insulation Chamber；Described heater is to wear be installed on the perforation bottom described heat shield and can heat intracavitary irradiation heat to described air First is had axial between infrared-radiation heater, and the end face of the bottom surface of described inner bag and described infrared-radiation heater Spacing.

2. cooker as claimed in claim 1, it is characterised in that: described heat shield includes the main part being contained in described outer pot Be convexly equipped in described main part one end the convex screens portion being exposed to outside described outer pot, described heat shield is installed by described screens portion It is positioned on described outer pot.

3. cooker as claimed in claim 2, it is characterised in that: the top of described outer pot is convexly equipped with support lugn, described screens Portion includes the supporting part being supported on described support lugn and is convexly equipped in below described supporting part and is sheathed on described support lugn Outer radial direction limiting section.

4. cooker as claimed in claim 3, it is characterised in that: described supporting part be several circumferentially spaced be convexly equipped in described The lug of main part periphery；Or, described supporting part is the collar flange being convexly equipped in described main part periphery.

5. the cooker as described in any one of claim 2 to 4, it is characterised in that: described heat shield is provided with hollow cavity, described interior It is formed with position limiting structure so that described inner bag is placed in shape after the described hollow cavity of described heat shield between gallbladder and described heat shield Described air is become to heat chamber.

6. cooker as claimed in claim 5, it is characterised in that: described heat shield has recessed location in described screens portion The described hollow cavity that groove and the recessed diapire along described locating slot are downwardly extending, described inner bag include being arranged in described in The gallbladder body of intracavity and be located at described gallbladder body upper periphery face the accommodating edge, location being positioned in described locating slot in empty, described Locating slot and edge, described location collectively form described position limiting structure.

7. the cooker as described in any one of Claims 1-4, it is characterised in that: on described heat shield and/or on described inner bag It is formed with the spout hole connecting described air heating chamber with outside atmosphere.

8. the cooker as described in any one of Claims 1-4, it is characterised in that: described infrared-radiation heater includes heating Silk, use pottery mud sinter molding ceramics insulator outside described heating wire and be located at the lead-in wire that described ceramic insulation is external, One end of described lead-in wire is connected with described heating wire.

9. cooker as claimed in claim 7, it is characterised in that: also include temperature sensor, described infrared-radiation heater Being provided with installing hole, described temperature sensor wears and is installed in described installing hole, and the end face of described temperature sensor and institute The bottom surface stating inner bag abuts cooperation.

10. the cooker as described in any one of Claims 1-4, it is characterised in that: this cooker is electric cooking pot or electric cooker.