CN209074138U - Cooking device - Google Patents

Abstract

The utility model relates to the cooking devices that one kind can effectively inhibit the vibration of FERRITE CORE.Cooking device (electric cooker (10)) has ferrite retainer (25), its outside for being configured at a pot receiving portion (18), cricoid coil (22) are kept between pot receiving portion (18) at it, and there is the ferrite receiving portion (27) for accommodating and keeping FERRITE CORE (24).Ferrite receiving portion (27) has: being located at a pair of side plates (29) of the two sides of FERRITE CORE (24)；Link the linking part (30) of a pair of side plates (29)；Insert port (21) in the one end of the length direction of side plate (29) is set；The elastic piece (34b) flexibly to exert a force to FERRITE CORE (24) towards linking part (30)；And the limiting unit (35b) of the flexible deformation of limitation elastic piece (34b).

Description

Cooking device

Technical field

The utility model relates to a kind of cooking devices.

Background technique

A kind of cooking device known is configured with the coil to pot progress induction heating in the outside of pot receiving portion and contains The ferrite retainer of FERRITE CORE.Documented ferrite retainer has the slot with a pair of side plates in patent document 1 The ferrite receiving portion of shape.The ferrite receiving portion has: be set to the branch of the inside of ferrite receiving portion locating for coil by Portion；And it is set to the spring portion in the outside of the ferrite receiving portion in the position far from coil, in the branch by portion and bullet Spring has been held resiliently FERRITE CORE between portion.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2005-27965 bulletin

Utility model content

Utility model project to be solved

In this cooking device, when generating high frequency magnetic field due to the energization to coil, FERRITE CORE is micro- sometimes It carefully vibrates and generates abnormal sound.But in the cooking device of patent document 1, the vibrationproof countermeasure of the FERRITE CORE is simultaneously insufficient.

The utility model is to provide a kind of cooking device of vibration that can effectively inhibit FERRITE CORE as project.

Means for solving the problems

One mode of the utility model provides a kind of cooking device, has: the pot receiving portion of bottomed tube；And iron oxygen Body retainer is configured at the outside of the pot receiving portion, and keeps cricoid coil between the pot receiving portion, and described Ferrite retainer has the ferrite receiving portion for accommodating and keeping columnar FERRITE CORE, the ferrite receiving portion tool Standby: insert port is inserted into for the FERRITE CORE；And elastic piece, it is set to pot receiving portion side, and to the iron Ferrite core flexibly exerts a force, the elastic piece have limiting unit, the limiting unit by with the pot receiving portion or the line The abutting of circle and the flexible deformation for limiting the elastic piece.

According to the cooking device, abutted by limiting unit with pot receiving portion or coil, so as to limit the elasticity of elastic piece Deformation.Thereby, it is possible to effectively inhibit movement of the FERRITE CORE in ferrite receiving portion by elastic piece.Therefore, can Effectively inhibiting the high frequency magnetic field generated due to the energization to coil is caused FERRITE CORE there is a situation where vibrate.Its result To be reliably prevented from the generation of the unexpected abnormal sound from FERRITE CORE.

The insert port is set to the one end of the length direction of the ferrite receiving portion, and the elastic piece includes: One elastic piece extends from the one end for being formed with the insert port towards the another side opposite with the insert port； And second elastic piece, prolonged in the mode opposed with first elastic piece from the another side towards the one end It stretches, the limiting unit is set to first elastic piece opposed portion opposite with second elastic piece, and towards the line Circle protrudes.According to which, FERRITE CORE can be accommodated with stable state while inhibiting the vibration of FERRITE CORE In ferrite receiving portion.

The limiting unit for being set to second elastic piece is tilted to close to the direction of the insert port.According to the party Formula, when FERRITE CORE is configured in ferrite receiving portion from insert port, if FERRITE CORE collides with limiting unit, Then because of the inclination of limiting unit flexible deformation can occur for elastic piece.Therefore, it can be improved and FERRITE CORE be configured at ferrite receipts The operability in appearance portion.In addition, in the case where limiting unit is connected to coil because of the deformation of elastic piece, in elastic piece and limiting unit Tilt angle widened Direction distortion of at least one party to limiting unit relative to elastic piece, therefore be able to suppress limiting unit to line The damage of circle.

The retainer for preventing the abjection for the FERRITE CORE being inserted into is provided in the insert port.According to the party Formula can be effectively prevented the abjection of FERRITE CORE from ferrite receiving portion.It therefore, can be using FERRITE CORE as pre- group Component loaded on ferrite retainer is handled.As a result, can be improved the assemblability of cooking device.

Thickness from the outer surface of the FERRITE CORE to inner surface has defined allowable error, allows to miss described The FERRITE CORE of minimum dimension in difference is inserted into the ferrite receiving portion from the insert port, and the elastic piece In the state of deforming maximum because of the FERRITE CORE, the outer surface of the pot receiving portion or the coil and the limiting unit Between gap be zero.Here, gap is zero to mean the state that limiting unit is abutted with the outer surface of coil, it is wired being not configured In the case where circle, the top comprising limiting unit crosses imaginary plane locating for the outer surface of coil and is located at ferrite receiving portion side State.According to which, the vibration of FERRITE CORE can be effectively inhibited while the assemblability for ensuring FERRITE CORE It is dynamic.

For the cooking appliance for reflecting plate, which is configured at the outside of the ferrite retainer, and for from institute Cover the shape of the coil when stating the direction observation that the axis of pot receiving portion extends, the ferrite receiving portion is with by the line Radial mode outstanding is provided with multiple centered on the center of circle, between adjacent multiple ferrite receiving portions In at least one space, be provided with the support plate with profile corresponding with the shape of the reflecting plate.According to which, Since reflecting plate is connected to support plate, can effectively inhibit the high frequency magnetic field generated due to the energization to coil is caused There is a situation where vibrate for reflecting plate.As a result, being reliably prevented from the generation of the unexpected abnormal sound from reflecting plate.Separately Outside, it can inhibit the phenomenon that operator hand and the lead of coil encounter the edge of reflecting plate by support plate.Therefore, Neng Gouyou Effect prevent operator by the damage for injuring lead.

The ferrite retainer has: first is screwed portion, is fixed on the pot receiving portion；Second is screwed The pot receiving portion is fixed in portion together with the reflecting plate；And third is screwed portion, fixes the reflecting plate. According to which, by configuring ferrite retainer, and first spiral shell that is screwed in the outside for being configured at the coil of pot receiving portion Line fixed part, so as to which coil and ferrite retainer to be fixed on to the outside of pot receiving portion.By being not configured with instead at this The lead for coil of arranging is penetrated in the state of plate, so as to be effectively prevented the injury and lead of the operator as caused by reflecting plate Damage.Thereafter, it by configuring reflecting plate in the outside of ferrite retainer, and is screwed and second is screwed portion, thus Ferrite retainer and reflecting plate can be fixed on a pot receiving portion.It is screwed portion finally, being threadably secured third, thus It is capable of fixing ferrite retainer and reflecting plate.

Utility model effect

In the cooking device of the utility model, due to the abutting by limiting unit and pot receiving portion or coil, it can limit The flexible deformation of elastic piece, therefore movement of the FERRITE CORE in ferrite receiving portion can be effectively inhibited.Therefore, can Effectively inhibiting the high frequency magnetic field generated due to the energization to coil causes FERRITE CORE there is a situation where vibrating, so as to Enough prevent the generation of unexpected abnormal sound.

Detailed description of the invention

Fig. 1 is the cross-sectional view of electric cooker involved in the embodiments of the present invention.

Fig. 2 is the perspective view for opening the electric cooker of lid.

Fig. 3 is the perspective view after being decomposed the lower part of electric cooker.

Fig. 4 is the electric cooker for having removed the ferrite retainer of main body exterior body, the reflecting plate of a part and a part Bottom view.

Fig. 5 is the cross-sectional view of protecting frame, coil, ferrite retainer and reflecting plate.

Fig. 6 is the exploded perspective view of protecting frame, coil, ferrite retainer and reflecting plate.

Fig. 7 is the exploded perspective view of ferrite retainer and reflecting plate.

Fig. 8 is the exploded perspective view of the ferrite retainer and reflecting plate observed from the angle different from Fig. 7.

Fig. 9 is the cross-sectional view for indicating the relationship between ferrite retainer and FERRITE CORE.

Figure 10 is the perspective view for indicating the variation of ferrite retainer and reflecting plate.

Specific embodiment

Hereinafter, being illustrated according to attached drawing to the embodiments of the present invention.

(summary of electric cooker)

Fig. 1 and Fig. 2 indicates the electric cooker 10 of an example as cooking device involved in the embodiments of the present invention.It should Electric cooker 10 has: being removably configured with the electric cooker main body 14 of pot for cooking rice 12；And it is openably and closably mounted on electric cooker master The lid 55 of body 14.

As shown in Figures 1 and 2, pot for cooking rice 12 is bottomed tube, and has disk-shaped bottom 12a, cylindric periphery Portion 12b and make their continuous bending section 12c.Pot for cooking rice 12 is made of magnetic material, and to pass through press process or casting And form the Construction integration of bottom 12a, peripheral part 12b and bending section 12c.

Electric cooker main body 14 has: by the main body exterior body 15 of upper end opening；And block the opening of main body exterior body 15 Shoulder body 16.The hinge connection portion 17 for being rotatably mounted lid 55 is provided at the back of shoulder body 16.Electric cooker main body 14 has The standby pot receiving portion 18 for removably accommodating pot for cooking rice 12.Pot receiving portion 18 is bottomed tube, and is had: being formed as cylindrical shape Metal inner casing 19；And being formed as the protecting frame 20 of resin (non-conductive material) system of hypocrateriform, pot receiving portion 18 is matched It is placed in the lower part of the opening of shoulder body 16.

The coil 22 that induction heating is carried out to pot for cooking rice 12 is configured in the outside of protecting frame 20.Referring to Fig. 3 and Fig. 4, originally In embodiment, coil 22 is configured with 3 along the circumferentially spaced interval of protecting frame 20.It is configured in the outside of each coil 22 Ferrite retainer 25 maintains coil 22 between the ferrite retainer 25 and protecting frame 20.It is kept in each ferrite The outside of frame 25 be configured with reflecting plate 45, the reflecting plate 45 prevent high frequency magnetic field leak into electric cooker main body 14 outside feelings Condition.In addition, Fig. 4 shows a configuration ferrite retainer 25 and reflecting plate 45 in 3 coils 22, only match at another Ferrite retainer 25 is set, and in a remaining state that ferrite retainer 25 had both been not configured or reflecting plate 45 is not configured.

As shown in Figures 1 and 2, lid 55 has: the lid main body 56 of the plan view shape of the upper surface of covering shoulder body 16；And Cover the lid exterior body 57 on the top of lid main body 56.Lid main body 56 is rotatably mounted in hinge connection portion 17.In face of cooking The private side of the lid main body 56 of pot 12 is provided with the inner cover 58 for blocking the upper end opening of pot for cooking rice 12.Relative to lid 55, inner cover 58 both can removably configure, and can also unremovably configure.

Referring to Fig. 3, lid 55 is provided with the operating surface with multiple operation buttons 60 and liquid crystal display panel (display unit) 61 Plate portion 59.Multiple operation buttons 60 include make to cook the processing button of cooking started, the heat preservation button for starting isothermal holding and Make to cook processing and cancel button that isothermal holding terminates.According to the instruction of control unit, liquid crystal display panel 61 shows menu of cooking Selection state and current working condition.

Referring to Fig. 3 and Fig. 4, in the mode between main body exterior body 15 and pot receiving portion 18, in electric cooker main body 14 It is interior to be configured with control base board 52.The control controlled the electric component including coil 22 is provided in control base board 52 Portion (not shown).Control unit is made up of single or multiple microcomputers and other electronic devices.Control unit is not according to scheming The testing result of the temperature sensor shown controls the energization to coil 22, to execute cook processing and isothermal holding.

When being powered to coil 22, due to the high frequency magnetic field generated by coil 22, in reflecting plate 45 and ferrite retainer 25 FERRITE CORE 24 imperceptibly vibrate sometimes and generate abnormal sound.In order to eliminate the problem, in present embodiment, in ferrite Retainer 25 is provided with the construction inhibited to the vibration of FERRITE CORE 24 and reflecting plate 45.Hereinafter, to coil 22, iron oxygen Body retainer 25 and reflecting plate 45 give the account in greater detail.

(coil of ferrite retainer keeps construction)

As shown in Figures 4 to 6, coil 22 is the shape that multiple windings are wound into oval ring-type, passes through energization high-frequency electrical It flows and generates eddy current, to carry out induction heating to pot for cooking rice 12.As in Fig. 4 the most best seen in, from protection When the direction observation that the axis A of frame 20 extends, coil 22 centered on the axis A of protecting frame 20, match by circumferentially spaced compartment of terrain It sets.Referring to Fig.1 and Fig. 5, from bottom, 12a extends to periphery to each coil 22 centered on the bending section 12c by pot for cooking rice 12 The mode of portion 12b is configured at the outside of protecting frame 20.In addition, the bottom 12a of the bottom wall part 20b of protecting frame 20 and pot for cooking rice 12 Corresponding, the curved wall portion 20c of protecting frame 20 and the bending section 12c of pot for cooking rice 12 are corresponding, the sidewall portion 20d of protecting frame 20 with The peripheral part 12b of pot for cooking rice 12 is corresponding.

Each coil 22 has a pair of lead wires 22a.It is located at the lead 22a and control base of a coil 22 of downside in Fig. 4 Plate 52 connects.The lead 22a of two coils 22 in Fig. 4 positioned at upside is connect with interposer 53 respectively, and interposer 53 is matched It sets in the retainer portion 20a of protecting frame 20.By control unit, any of 3 coils 22 are powered, and to other two Energization be cut off.In addition, 3 coils 22 switch energized state every the defined time, according to the sequence of regulation.

Under normal conditions, in Japan, the case where panel that family is arranged in is 20 amperes, and socket is 15 amperes, is more, In the electrical equipment including this electric cooker 10, the rated power that can be put into per unit time is up to 1500W.For In the case where the electric cooker for having used a coil of covering bottom wall part 20b entirety, with heating amount pair corresponding with rated power The bottom 12a of pot for cooking rice 12 integrally carries out induction heating.In contrast, in the electric cooker of present embodiment 10, due to 3 An investment rated power in coil 22, therefore 1/3 region of corresponding pot for cooking rice 12 is added with corresponding with rated power Heat is intensively carried out induction heating.Therefore, the electric cooker 10 of present embodiment and the electric cooker phase for having used a coil Compare, is capable of increasing the maximum heating amount of the per unit area of pot for cooking rice 12.

As shown in Figures 4 to 6, ferrite retainer 25 is arranged for each coil 22, and matches relative to coil 22 It is placed in the side opposite with protecting frame 20.Ferrite retainer 25 has receiving and keeps multiple ferrites of FERRITE CORE 24 Receiving portion 27, FERRITE CORE 24 restrain the magnetic flux from coil 22.In present embodiment, when looking down in substantially cross The mode of shape, 4 ferrite receiving portion (hereinafter, abbreviation are " receiving portion ") 27 are radial centered on the center of coil 22 It is provided projectingly.In addition, in the following description, 4 receiving portions 27 are distinguished as needed sometimes, and referred to as first receives Appearance portion 27A to the 4th receiving portion 27D.

First receiving portion 27A extends near the axis A of protecting frame 20 along bottom wall part 20b radially.Referring to figure 4, the base portion (central part) of ferrite retainer 25 is constituted positioned at the outer end of the first receiving portion 27A of the radial outside of protecting frame 20 26.The base portion 26 is located at the center of the curved wall portion 20c of protecting frame 20 and coil 22 substantially directly below.In protecting frame 20 The top (inner end) 28 of first receiving portion 27A of radially inner side is located at the top in the minor axis direction of coil 22.

Second receiving portion 27B extends from base portion 26 along the sidewall portion 20d of protecting frame 20.Second receiving portion 27B with Tend to upside along the axis A of protecting frame 20, the mode gradually expanded to the radial outside of protecting frame 20 tilts.Referring to Fig. 4 and Fig. 5, the top (upper end) 28 of the second receiving portion 27B in the position far from base portion 26 is on the minor axis direction of coil 22, position In the top of the coil 22 of the opposite side on the top 28 of the first receiving portion 27A.

Third receiving portion 27C and the 4th receiving portion 27D is prominent to the direction intersected with the first receiving portion 27A from base portion 26 Out.Third receiving portion 27C and the 4th receiving portion 27D is upwardly extended along curved wall portion 20c in the week of protecting frame 20.In separate The top 28 of the third receiving portion 27C of the position of base portion 26 is located at a top in the major diameter direction of coil 22, in far from base The top 28 of 4th receiving portion 27D of the position in portion 26 is located at another top in the major diameter direction of coil 22.

In this way, being positioned by the first receiving portion 27A and the second receiving portion 27B to the minor axis direction of coil 22, pass through Third receiving portion 27C and the 4th receiving portion 27D position the major diameter direction of coil 22.

(the FERRITE CORE mounting structure of ferrite retainer)

As shown in figure 5, receiving portion 27 separates defined interval relative to coil 22 and is arranged, to avoid FERRITE CORE 24 With the contact of coil 22.As shown in Figures 7 and 8, each receiving portion 27 is the flute profile for accommodating the FERRITE CORE 24 of rectangular-shape, A pair of side plates 29 has outside linking part (linking part) 30 and inside linking part 31a respectively.In addition, except the second receiving portion 27B with Outer receiving portion 27A, 27C, 27D has elastic piece 34a, 34b and limiting unit 35a, 35b.Second receiving portion 27B has and elasticity Piece 34a, 34b different elastic pieces 37.

A pair of side plates 29 includes the outer wall along protecting frame 20, i.e., along bottom wall part 20b, curved wall portion 20c and sidewall portion The inner edge 29a that 20d extends；And positioned at the outer rim 29b than inner edge 29a in the outer part, a pair of side plates 29 is configured at and protecting frame 20 Orthogonal direction.A pair of side plates 29 is opposed, and one of side plate 29 covers a side 24a of FERRITE CORE 24, another Another side 24a of the covering FERRITE CORE 24 of side plate 29.The side plate 29 of first receiving portion 27A and the second receiving portion 27B are logical A continuous plate is crossed to constitute.A pair of side plates 29 of third receiving portion 27C is from a pair of side plates 29 of the first receiving portion 27A One protrudes respectively.A pair of side plates 29 of 4th receiving portion 27D is from another point in a pair of side plates 29 of the first receiving portion 27A Tu Chu not.

As in Fig. 7 the most best seen in, outside linking part 30 is set to the side outer rim 29b of side plate 29, and links A pair of side plates 29.The outside linking part 30 of first receiving portion 27A, third receiving portion 27C and the 4th receiving portion 27D are set to side plate The center of 29 length direction.The outside linking part 30 of second receiving portion 27B is set to the top 28 of the length direction of side plate 29. Outside linking part 30 has the outer rim 29b extension along side plate 29, and into receiving portion 27 plate outstanding contact piece 30a. In addition, the center of the length direction in the second receiving portion 27B is additionally provided with other than contact piece 30a along the outer of side plate 29 Edge 29b extends, and into receiving portion 27 plate outstanding contact piece 30b.Gap and a pair between a pair of of contact piece 30a are supported The width of size, that is, FERRITE CORE 24 between gap-ratio a pair of side 24a between contact pin 30b is small.Referring to Fig. 5, abutting The end of the length direction of piece 30a, 30b is provided with the protruding portion towards internal (protecting frame 20) section semi-circular shape outstanding 30c。

As in Fig. 8 the most best seen in, inside linking part 31a is set to the inner edge side 29a of side plate 29, and links A pair of side plates 29.Inside linking part 31a is set to the top 28 of receiving portion 27.In addition, being accommodated in the first receiving portion 27A and second 26 side of base portion of portion 27B is additionally provided with the second inside linking part 31b of connection a pair of side plates 29.In addition, third receiving portion 27C It is connected with 26 side of base portion of the 4th receiving portion 27D by the side plate 29 of the first receiving portion 27A.

The receiving portion 27 of tubular is marked off by a pair of side plates 29, outside linking part 30 and inside linking part 31a.It is each The top (one end) 28 of receiving portion 27 is the insert port 32 being inserted into for FERRITE CORE 24.As shown in figure 5, in order to insertion iron oxygen The end of the FERRITE CORE 24 in 24 direction of body magnetic core is positioned, and 26 side of base portion of the first receiving portion 27A is provided with end Plate 33a is provided with end plate 33b in 26 side of base portion of the second receiving portion 27B.The connection of the inside of end plate 33a and the first receiving portion 27A Portion 31b and a pair of side plates 29 are continuous.A pair of side plates 29 of end plate 33b and end plate 33a and the second receiving portion 27B is continuous.In addition, In third receiving portion 27C and the 4th receiving portion 27D, the side for being located through the first receiving portion 27A of the end of FERRITE CORE 24 Plate 29 carries out.

As shown in figs. 5 and 8, elastic piece 34a, 34b is to receiving to the first receiving portion 27A, third receiving portion 27C and the 4th The FERRITE CORE 24 of receiving portion 27D flexibly exerts a force towards outside linking part 30.Elastic piece 34a, 34b receiving portion 27A, It is adjacent on the length direction of 27C, 27D (side plate 29), and extended in mode opposed respectively.First elastic piece 34a is from insert port 32 is prominent towards base portion 26, and the second elastic piece 34b is prominent from base portion 26 towards insert port 32.First elastic piece 34a is integrally set It is placed in inside linking part 31a.The second elastic piece 34b of first receiving portion 27A is integrally provided to inside linking part 31b, third The second elastic piece 34b of receiving portion 27C and the 4th receiving portion 27D is integrally provided to the side plate 29 of the first receiving portion 27A.

Limiting unit 35a, 35b is by the abutting with coil 22, to limit the bullet towards coil 22 of elastic piece 34a, 34b Property deformation.Alternatively, it is also possible to replace coil 22, and abut limiting unit 35a, 35b with protecting frame 20.Limiting unit 35a, 35b mono- It is set to body elastic piece 34a, 34b, and prominent towards protecting frame 20.Limiting unit 35a, 35b be located at receiving portion 27A, 27C, The mode of the center portion of 27D is set to the opposed portion of a pair of of elastic piece 34a, 34b, that is, is set to each elastic piece 34a, 34b Top.

The first limiting unit 35a of first elastic piece 34a is tilted to close to the direction of the second elastic piece 34b (base portion 26).The The second limiting unit 35b of two elastic piece 34b is tilted to close to the direction of the first elastic piece 34a (insert port 32).That is, limit Portion 35a, 35b processed are obtuse angle relative to the inclination angle alpha of elastic piece 34a, 34b, β.As in Fig. 5 the most best seen in, Second limiting unit 35b relative to the second elastic piece 34b inclination angle beta than the first limiting unit 35a relative to the first elastic piece 34a Inclination angle alpha it is big.In addition, between elastic piece 34a, 34b and limiting unit 35a, 35b, be respectively arranged with corner portion 36a, 36b.In the case where being configured with not FERRITE CORE 24 of the defined thickness T of error, corner portion 36a, 36b and ferrite 24 face contact of magnetic core.

As shown in figs. 5 and 8, it accommodates to the ferrite magnetic of the second receiving portion 27B for 37 pairs of the elastic piece of the second receiving portion 27B Core 24 flexibly exerts a force towards outside linking part 30.Side of the elastic piece 37 to extend on the length direction of the second receiving portion 27B Formula and be arranged.One end of elastic piece 37 and the inside linking part 31a of 28 side of top are continuous, the other end and base portion 26 of elastic piece 37 The inside linking part 31b of side is continuous.It is provided in the middle section of elastic piece 37 towards the inclined rake of outside linking part 30 37a。

As shown in Figure 5 and 7, the insert port 32 of receiving portion 27A, 27C, 27D are provided with the iron for preventing configuration in inside The retainer 38 of the abjection of ferrite core 24.The retainer 38 and inside linking part 31a and a pair of side plates 29 of first receiving portion 27A Continuously.One in the retainer 38 of third receiving portion 27C and the 4th receiving portion 27D and inside linking part 31a and a pair of side plates 29 It is a continuous.Each retainer 38 protrudes outward from inside linking part 31a.The protrusion of retainer 38 having a size of from inner edge 29a to The substantially half of the width of the side plate 29 of outer rim 29b.

The retainer for being contained in the FERRITE CORE 24 of the second receiving portion 27B is not set in ferrite retainer 25.Such as Fig. 5 And shown in Fig. 6, the retainer 20e of the FERRITE CORE 24 of the second receiving portion 27B is by being in T word from outstanding overlook of protecting frame 20 The protruding portion of shape is constituted.In the outside of the retainer 20e radially of protecting frame 20, it is provided with the second receiving portion 27B of bearing Outside supporting part 20f.

Fig. 9 is elastic piece 34a, the 34b and the second limiting unit 35b and FERRITE CORE for indicating receiving portion 27A, 27C, 27D The cross-sectional view of relationship between 24.The width and thickness T of FERRITE CORE 24 is predefined as specification.FERRITE CORE Size of 24 width between a pair of side 24a.The thickness T of FERRITE CORE 24 is from outer surface 24b to the ruler of inner surface 24c It is very little.Thickness T includes allowable error (tolerance) Δ T.For example, allowable error Δ T is the ± 0.3mm of defined size.

As shown in phantom in Figure 9, in receiving portion 27A, 27C, the 27D for not yet configuring FERRITE CORE 24, elastic piece The thickness Tmin of gap S1 between 34a, 34b and protruding portion 30c (contact piece 30a) than the FERRITE CORE 24 of minimum dimension It is small.The elastic piece 37 (rake 37a) of second receiving portion 27B and the gap of contact piece 30a, 30b are also set to and elastic piece 34a, 34b are identical.

In receiving portion 27A, 27C, the 27D for being provided with retainer 38, need to tilt from insert port 32 as shown in Figure 9 Ground is inserted into FERRITE CORE 24.That is, in receiving portion 27A, 27C, 27D, by the contact piece 30a's positioned at 28 side of top The opening portion that the outer rim 29b of end, the top of retainer 38 and a pair of side plates 29 is surrounded constitutes insert port 32.

As shown in phantom in Figure 9, in receiving portion 27A, 27C, the 27D for not yet configuring FERRITE CORE 24, the second elasticity Gap S2 between the second limiting unit 35b of piece 34b and the outer surface 22b of coil 22 is set as follows.Such as solid line in Fig. 9 It is shown, in the FERRITE CORE 24 from 32 inserting thickness Tmin of insert port, elastic piece 34b is due to the abutting of FERRITE CORE 24 In the state that deformation is maximum, gap S2 is set as zero mode.Gap S2 is zero to mean the second limiting unit 35b and coil 22 The state that abuts of outer surface 22b, in the case where being not configured with coil 22, the top comprising the second limiting unit 35b is crossed outer Imaginary plane locating for the 22b of surface and be located at 20 side of protecting frame state.

In the electric cooker 10, abutted by limiting unit 35a, 35b with coil 22, so as to limit elastic piece 34a, The flexible deformation of 34b.Thereby, it is possible to inhibit movement of the FERRITE CORE 24 in receiving portion 27 by elastic piece 34a, 34b. Therefore, the generation that can effectively inhibit the high frequency magnetic field generated due to the energization to coil 22 causes FERRITE CORE 24 to send out The case where raw vibration.As a result, being reliably prevented from the generation of the unexpected abnormal sound from FERRITE CORE 24.

Elastic piece 34a, 34b have been disposed adjacently a pair on the length direction of receiving portion 27, and in the opposed of them Portion is provided with limiting unit 35a, 35b.It therefore, can be in the vibration for inhibiting FERRITE CORE 24 by a pair of elastic piece 34a, 34b While, FERRITE CORE 24 is housed in receiving portion 27 with stable state.

The the second limiting unit 35b for being set to the second elastic piece 34b is tilted to close to the direction of insert port 32.Therefore, from When FERRITE CORE 24 is configured in receiving portion 27 by insert port 32, if FERRITE CORE 24 is touched with the second limiting unit 35b It hits, then because of the inclination of the second limiting unit 35b flexible deformation can occur for the second elastic piece 34b.As a result, can be improved iron oxygen Body magnetic core 24 is configured at the operability of receiving portion 27.In addition, in deformation of the second limiting unit 35b because of the second elastic piece 34b and line In the case that circle 22 abuts, at least one party in the second elastic piece 34b and the second limiting unit 35b is opposite to the second limiting unit 35b In the widened Direction distortion of inclination angle beta of the second elastic piece 34b.Therefore, the second limiting unit 35b is able to suppress to coil 22 Damage.

Due to being provided with retainer 38 in insert port 32, FERRITE CORE 24 can be effectively prevented from receiving portion 27 Abjection.Therefore, FERRITE CORE 24 can be handled as the component for being pre-assembled with ferrite retainer 25.Its result To can be improved the assemblability of electric cooker 10.

With in the state of being inserted into the FERRITE CORE 24 of thickness Tmin in receiving portion 27 from insert port 32, second is limited Portion 35b processed is abutted with the outer surface 22b of coil 22, so that gap S2 is set as zero mode.Therefore, can ensure While the assemblability of FERRITE CORE 24, the vibration and abjection of FERRITE CORE 24 are effectively inhibited.

(the reflecting plate supporting construction of ferrite retainer)

As shown in Figures 7 and 8, reflecting plate 45 is configured in the outside of ferrite retainer 25.Reflecting plate 45 has bottom plate Portion 46, side plate 47 and stage portion 48.Ferrite retainer 25 is received by the first receiving portion 27A, third receiving portion 27C and the 4th Appearance portion 27D comes bearing plate portion 46, by the second receiving portion 27B come supporting side plate portion 47.In order to inhibit the biggish bottom plate of area The vibration in portion 46 is provided with support plate 39 in the ferrite retainer 25 of present embodiment.

Specifically, reflecting plate 45 is to carry out press process to a metal plate to be formed by Construction integration.For example, reflection The material of plate 45 is the resistance value copper or aluminium lower than pot for cooking rice 12.Together referring to Fig. 4, what is extended from the axis A of protecting frame 20 When direction is observed, reflecting plate 45 is the generally elliptical shape for covering coil 22.

Base plate 46 overlaps to be received in the first receiving portion 27A, the third receiving portion 27C of ferrite retainer 25 and the 4th The outside of appearance portion 27D.Curvature substantially phase of the peripheral part 46a of base plate 46 between curvature and the both ends in the major diameter direction of coil 22 Same half-oval shaped.

Side plate 47 is continuous via stage portion 48 and base plate 46.Side plate 47 is whole to be bent relative to base plate 46, and It overlaps in the outside of the second receiving portion 27B of ferrite retainer 25.The peripheral part 47a of side plate 47 is curvature and coil The roughly the same half-oval shaped of curvature between the both ends in 22 major diameter direction.In a part of the peripheral part 47a of side plate 47, Jagged 47b is set with arc-shaped, to avoid the interference of other component in the assembled state.

Stage portion 48 is the recess for avoiding the interference of other components in the assembled state.Stage portion 48 has and bottom plate The continuous first part 48a in portion 46 and with the continuous second part 48b of side plate 47.First part 48a is relative to base plate 46 Bending, and it is respectively arranged at the outside of the third receiving portion 27C and the 4th receiving portion 27D of ferrite retainer 25.Second part 48b is bent relative to side plate 47 and first part 48a, and is extended respectively to from third receiving portion 27C and the 4th receiving portion 27D The outside of second receiving portion 27B.

4 through hole 49a~49d are formed in reflecting plate 45.First through hole 49a is arranged in base plate 46.Second passes through The 49b that perforates is arranged from side plate 47 to stage portion 48.Third through hole 49c and the 4th through hole 49d is from the second through hole 49b's The second part 48b of two sides is arranged to base plate 46.These through holes 49a~49d is to make blower fan 54 (referring to Fig. 4) Wind passes through, cooling and setting to carry out to coil 22.In addition, the second through hole 49b, which has both, makes one of the second receiving portion 27B Divide and the aftermentioned function outstanding of portion 40~42 that is screwed.

Next as shown in Figures 7 and 8, ferrite retainer 25 is between the first receiving portion 27A and third receiving portion 27C And first between receiving portion 27A and the 4th receiving portion 27D, has the support plate 39 abutted with base plate 46.Support plate 39 has Profile (peripheral part 39a) corresponding with the shape of peripheral part 46a of base plate 46 of reflecting plate 45.Specifically, such as Fig. 4 institute Show, when from the direction that the axis A of protecting frame 20 extends, curvature and the reflecting plate 45 of the peripheral part 39a of support plate 39 The curvature of peripheral part 46a is identical.

The peripheral part 39a of support plate 39 is chamfered as semi-circular shape, and the semi-circular portions are prominent from the peripheral part 46a of base plate 46 Out.The outer surface of support plate 39 is the flat surface flushed with the outer rim 29b of the side plate 29 of receiving portion 27A, 27C, 27D, reflecting plate 45 base plate 46 and the appearance plane-plane contact.

In this way, since ferrite retainer 25 has the support plate 39 abutted with the base plate 46 of reflecting plate 45, energy The generation for enough effectively inhibiting the high frequency magnetic field generated due to the energization to coil 22 causes reflecting plate 45 (base plate 46) to send out The case where raw vibration.As a result, being reliably prevented from the generation of the unexpected abnormal sound from base plate 46.

In addition, as shown in figure 4, the lead 22a of coil 22 passes through the narrow gap between adjacent coil 22 and arranges.This When, when the hand of operator meets the peripheral part 46a of thin reflecting plate 45, operator is possible to injured.In addition, working as lead 22a When meeting peripheral part 46a, lead 22a will receive damage.But in present embodiment, have and peripheral part 46a due to being provided with The corresponding peripheral part 39a of shape support plate 39, therefore the above problem can be effectively prevented.

(fixture construction of ferrite retainer)

As shown in Figure 6 to 8, ferrite retainer 25 has the fixed portion 40~42 that is screwed.First screw thread is solid Determining portion 40 is arranged in order to which ferrite retainer 25 is only fixed on protecting frame 20.Second be screwed portion 41 be in order to will Ferrite retainer 25 and reflecting plate 45 are fixed on protecting frame 20 together and are arranged.The third portion 42 that is screwed is in order to will be anti- Plate 45 is penetrated to be fixed on ferrite retainer 25 and be arranged.

First is screwed the part that portion 40 is arranged in the first receiving portion 27A and third receiving portion 27C intersects.First spiral shell Line fixed part 40 has the recess portion on the head that can accommodate screw (not shown) and makes the perforative through hole of screw.In protecting frame 20 Positioned at first be screwed portion 40 surface part, be provided with the protrusion 20g of fastening screw.

The part that the first receiving portion 27A and the 4th receiving portion 27D intersect is arranged in second portion 41 that is screwed.Second spiral shell Line fixed part 41 has and makes screw (not shown) perforative through hole.Portion 41 is being screwed just positioned at second in protecting frame 20 The part of top is provided with the protrusion 20h of fastening screw.Reflecting plate 45 has outstanding prominent from base plate 46 towards side plate 47 Piece 50, tab 50 be located at second be screwed portion 41 underface part, being provided with makes the perforative threaded hole of screw 50a。

Third is screwed portion 42 to be set to the side of third receiving portion 27C with the first adjacent mode in portion 40 that is screwed Plate 29.The third portion 42 that is screwed is made up of the protrusion of fastening screw (not shown).In the position of the tab 50 of reflecting plate 45 It is screwed the part of the underface in portion 42 in third, being provided with makes the perforative threaded hole 50b of screw.

In addition, being provided with the top progress to the major diameter direction of the inner circumferential of coil 22 in protecting frame 20 referring to Fig. 4 and Fig. 6 A pair of of positioning protrusion 20i of positioning.In addition, being provided in the tab 50 of reflecting plate 45 referring to Fig. 7 and Fig. 8 and being locked to the first spiral shell Line fixed part 40 and second be screwed portion 41 outside hooking sheet 50c.

Next, being said to the operation that coil 22, ferrite retainer 25 and reflecting plate 45 are installed on protecting frame 20 It is bright.

In a manner of the inner peripheral portion for making protrusion 20g, 20h be located at coil 22, by 3 configurations of coil 22 in the outer of protecting frame 20 Side.Then, coil 22 is located in by scheduled direction by positioning protrusion 20i.

Next, configuring the ferrite retainer 25 for containing FERRITE CORE 24 in the outside of coil 22, and by the One portion 40 that is screwed is screwed on protrusion 20g.Ferrite retainer 25 is pre-fixed in the outside of protecting frame 20 as a result, So as to which coil 22 is held in a predetermined position.In the state that this is not configured with reflecting plate 45, by the lead 22a of coil 22 It is arranged in predetermined position.

Next, configuring reflecting plate 45 in the outside of ferrite retainer 25, by the second spiral shell of ferrite retainer 25 The tab 50 (threaded hole 50a) of line fixed part 41 and reflecting plate 45 is screwed on the protrusion 20h of protecting frame 20 together.As a result, While ferrite retainer 25 is secured entirely on protecting frame 20, reflecting plate 45 is pre-fixed in protecting frame 20.

Finally, the tab 50 (threaded hole 50b) of reflecting plate 45 to be screwed on to the third screw thread of ferrite retainer 25 Fixed part 42.Reflecting plate 45 is secured entirely on protecting frame 20 and ferrite retainer 25 as a result,.

In this way, ferrite retainer 25 has 3 kinds of portions 40~42 that are screwed, the arrangement of the lead 22a of coil 22 can It is carried out in the state that reflecting plate 45 is not configured in protecting frame 20.Therefore, the work as caused by reflecting plate 45 can be effectively prevented The injury of dealer and the damage of lead 22a.

(the fuse mounting structure of ferrite retainer)

As shown in figure 8, ferrite retainer 25 has the configuration section 43 for configuring temperature fuse 44.Configuration section 43 is In three receiving portion 27C and the 4th receiving portion 27D, it is arranged in the adjacent mode on the first direction outstanding receiving portion 27A.Only One in two configuration sections 43 is configured with temperature fuse 44.The temperature fuse 44 configured in whole ferrite retainers 25 is connected Connection, and be electrically connected with control base board 52.Temperature fuse 44 fuses in corresponding 22 excessive heating of coil, thus cut off to The energization of all coils 22.

Configuration section 43 has the side plate 43a being arranged at spaced intervals with the side plate 29 of receiving portion 27C, 27D and is set to slotting The end plate 43b in the direction of entrance 32.Side plate 43a is extended parallel to side plate 29, and overall length is shorter than side plate 29.End plate 43b be for Falling off and being arranged for temperature fuse 44 is prevented, has the slot 43c being inserted through for lead (not shown).Pass through the first receiving portion The side plate 29 of 27A prevents the end of the temperature fuse 44 of the opposite side positioned at end plate 43b from falling off.It is formed in side plate 29,43a There is the rib 43d of the periphery of crimping temperature fuse 44.The bottom of configuration section 43 is provided with the through hole 43e of heat transmission.

In this way, coil 22 can be reliably detected out due to being configured with temperature fuse 44 in ferrite retainer 25 Excessive fever, so as to be effectively prevented resin protecting frame 20 melting loss.In addition, due to without in order to install temperature It spends fuse 44 and newly sets other components, therefore components number can be cut down.

In addition, the electric cooker (cooking device) 10 of the utility model is not limited to the structure of the embodiment, but energy Enough carry out various changes.

It can be in the fixed part of the vibration of ferrite retainer 25 and the setting inhibition reflecting plate 45 of reflecting plate 45.Such as Figure 10 It is shown, the fixation protrusion 39b with spherical anti-delinking part can be set in the support plate 39 of ferrite retainer 25, and anti- The fixation hole 46b of fixinig plate of the setting of base plate 46 with elastically deformable of plate 45 is penetrated, and is consolidated base plate 46 by them Due to support plate 39.It so, it is possible the vibration for the base plate 46 for being more effectively prevented from reflecting plate 45.

FERRITE CORE 24 is not limited to prism-shaped, also can be set to cylindric, can also be set as the shape of integrally bending.

Coil 22 can also configure 4 or more there are two can both having configured.Alternatively, it is also possible to the axis as protecting frame 20 Line A and center and only be configured with one.In either case, ferrite retainer 25 only need to be with by the center of coil 22 Centered on radial mode outstanding multiple receiving portions 27 are set.In addition, multiple receiving portions 27 are not limited to one Construction, can also be with split settings.

The support plate 39 of ferrite retainer 25 also can be set between the second receiving portion 27B and third receiving portion 27C And second between receiving portion 27B and the 4th receiving portion 27D.

Although being illustrated for enumerating electric cooker 10 in said embodiment, but as long as to have bottomed tube Pot receiving portion, be configured at pot receiving portion outside coil and configuration in the ferrite retainer in the outside of coil, and make column The FERRITE CORE of shape is contained in the cooking device of ferrite retainer, then the utility model can be applied to any cooking device, and energy Enough obtain identical functions and effects.

Symbol description

10 ... electric cookers (cooking device)

12 ... pot for cooking rice

The bottom 12a ...

12b ... peripheral part

The bending section 12c ...

14 ... electric cooker main bodys

15 ... main body exterior bodies

16 ... shoulder bodies

17 ... hinge connection portions

18 ... pot receiving portions

19 ... inner casings

20 ... protecting frames

20a ... retainer portion

20b ... bottom wall part

20c ... curved wall portion

20d ... sidewall portion

20e ... retainer

20f ... supporting part

The protrusion 20g ...

The protrusion 20h ...

20i ... positions protrusion

22 ... coils

22a ... lead

The outer surface 22b ...

24 ... FERRITE COREs

The side 24a ...

The outer surface 24b ...

24c ... inner surface

25 ... ferrite retainers

26 ... base portions

27,27A~27D ... ferrite receiving portion

28 ... tops

29 ... side plates

The inner edge 29a ...

29b ... outer rim

30 ... outside linking parts (linking part)

30a ... contact piece

30b ... contact piece

30c ... protruding portion

The inside 31a, 31b ... linking part

32 ... insert ports

33a, 33b ... end plate

The first elastic piece of 34a ...

The second elastic piece of 34b ...

The first limiting unit of 35a ...

The second limiting unit of 35b ...

36a, 36b ... corner portion

37 ... elastic pieces

37a ... rake

38 ... retainers

39 ... support plates

39a ... peripheral part

39b ... fixes protrusion

40 ... first are screwed portion

41 ... second are screwed portion

42 ... thirds are screwed portion

43 ... configuration sections

43a ... side plate

43b ... end plate

43c ... slot

43d ... rib

43e ... through hole

44 ... temperature fuses

45 ... reflecting plates

46 ... base plates

46a ... peripheral part

46b ... fixation hole

47 ... side plates

47a ... peripheral part

47b ... notch

48 ... stage portions

48a ... first part

48b ... second part

49a~49d ... through hole

50 ... tabs

50a ... threaded hole

50b ... threaded hole

50c ... hooking sheet

52 ... control base boards

54 ... blower fans

55 ... lids

56 ... lid main bodys

57 ... lid exterior bodies

58 ... inner covers

59 ... operation panel portions

60 ... operation buttons

61 ... liquid crystal display panels

The gap of S1 ... elastic piece and contact piece

The gap of S2 ... limiting unit and coil

The thickness of T ... FERRITE CORE

Claims (10)

1. a kind of cooking device, which is characterized in that have:

The pot receiving portion of bottomed tube；And

Ferrite retainer is configured at the outside of the pot receiving portion, and keeps cricoid line between the pot receiving portion Circle, and the ferrite retainer has the ferrite receiving portion for accommodating and keeping columnar FERRITE CORE,

The ferrite receiving portion has:

Insert port is inserted into for the FERRITE CORE；And

Elastic piece is set to pot receiving portion side, and flexibly exerts a force to the FERRITE CORE,

The elastic piece has limiting unit, and the limiting unit limits institute by the abutting with the pot receiving portion or the coil State the flexible deformation of elastic piece.

2. cooking device as described in claim 1, which is characterized in that

The insert port is set to the one end of the length direction of the ferrite receiving portion,

The elastic piece includes: the first elastic piece, from the one end direction and the insertion for being formed with the insert port The opposite another side of mouth extends；And second elastic piece, in the mode opposed with first elastic piece from described another End side extends towards the one end,

The limiting unit is set to first elastic piece opposed portion opposite with second elastic piece, and towards the line Circle protrudes.

3. cooking device as claimed in claim 2, which is characterized in that

The limiting unit for being set to second elastic piece is tilted to close to the direction of the insert port.

4. cooking device as claimed any one in claims 1 to 3, which is characterized in that

The retainer for preventing the abjection for the FERRITE CORE being inserted into is provided in the insert port.

5. cooking device as claimed any one in claims 1 to 3, which is characterized in that

Thickness from the outer surface of the FERRITE CORE to inner surface has defined allowable error,

The FERRITE CORE of minimum dimension in the allowable error is inserted into the ferrite receiving from the insert port In portion, and in the state that the elastic piece deforms maximum because of the FERRITE CORE, the pot receiving portion or the coil Gap between outer surface and the limiting unit is zero.

6. cooking device as claimed in claim 4, which is characterized in that

Thickness from the outer surface of the FERRITE CORE to inner surface has defined allowable error,

The FERRITE CORE of minimum dimension in the allowable error is inserted into the ferrite receiving from the insert port In portion, in the state that the elastic piece deforms maximum because of the FERRITE CORE, the pot receiving portion or the coil it is outer Gap between surface and the limiting unit is zero.

7. cooking device as claimed any one in claims 1 to 3, which is characterized in that

For the cooking appliance for reflecting plate, which is configured at the outside of the ferrite retainer, and for from the pot The shape of the coil is covered when the direction observation that the axis of receiving portion extends,

The ferrite receiving portion centered on by the center of the coil it is radial it is outstanding in a manner of be provided with it is multiple,

At least one space between adjacent multiple ferrite receiving portions, being provided with has and the reflecting plate The support plate of the corresponding profile of shape.

8. cooking device as claimed in claim 4, which is characterized in that

For the cooking appliance for reflecting plate, which is configured at the outside of the ferrite retainer, and for from the pot The shape of the coil is covered when the direction observation that the axis of receiving portion extends,

The ferrite receiving portion centered on by the center of the coil it is radial it is outstanding in a manner of be provided with it is multiple,

At least one space between adjacent multiple ferrite receiving portions, being provided with has and the reflecting plate The support plate of the corresponding profile of shape.

9. cooking device as claimed in claim 5, which is characterized in that

For the cooking appliance for reflecting plate, which is configured at the outside of the ferrite retainer, and for from the pot The shape of the coil is covered when the direction observation that the axis of receiving portion extends,

The ferrite receiving portion centered on by the center of the coil it is radial it is outstanding in a manner of be provided with it is multiple,

At least one space between adjacent multiple ferrite receiving portions, being provided with has and the reflecting plate The support plate of the corresponding profile of shape.

10. cooking device as claimed in claim 7, which is characterized in that

The ferrite retainer has:

First is screwed portion, is fixed on the pot receiving portion；

Second is screwed portion, and the pot receiving portion is fixed on together with the reflecting plate；And

Third is screwed portion, fixes the reflecting plate.