CN102178444A - Electric cooker with novel function control structure - Google Patents

Abstract

The invention provides an electric rice cooker with a new functional control structure, which has sensitive buttons, simple structure, good operation feel, and is more effective and reliable. The electric rice cooker comprises an upper cover assembly, an inner pot, an outer pot, a heating plate, a magnetic steel temperature limiter, a magnetic steel lever assembly, a panel assembly and a base, wherein the magnetic steel lever assembly is arranged at the bottom of the outer pot, and the panel assembly is arranged on the outer pot. The magnetic steel lever assembly comprises a magnetic steel lever in a sideways "Y" shape, a magnetic steel lever bracket fixed at the bottom of the outer pot and supporting the rotation of the magnetic steel lever, a micro switch for controlling the on and off of a heat preservation circuit, and a rotating shaft connecting the magnetic steel lever bracket and the magnetic steel lever. The upper and lower ends of the sideways "Y"-shaped bifurcated end of the magnetic steel lever extend toward the inner wall side of the outer pot respectively, and the sideways "Y"-shaped terminal end is connected to the pull rod of the magnetic steel temperature limiter. The electric rice cooker is also provided with at least one elastically resettable button, and the button is provided with contacts that can contact the upper and lower ends of the bifurcated end of the magnetic steel lever.

Description

An electric rice cooker with a new function control structure

【Technical field】

The invention relates to an electric rice cooker, in particular to a mechanical electric rice cooker with a novel function control structure.

【Background technique】

The electric rice cooker that adopts mechanical control sold on the market at present, its function control structure generally realizes the disconnection and connection of the circuit by the up and down toggle of the lever button, and finally realizes the cooking and heat preservation functions of the product; The upper and lower fitting gaps of the shell are relatively large, and the overflowing soup, or water spray, or water mist from the rice cooker can easily enter the inside of the rice cooker through the gap, causing aging and damage to the internal parts. In addition, the long-term friction between the lever button and the shell will cause poor movement, resulting in the magnetic steel not engaging or not springing off, and there is a quality risk that the heating plate cannot be heated or continues to heat, thus affecting the reliability of the product.

For example, Chinese patent ZL200820043085.1 discloses "a rice cooker". Its functional control structure is that a lever knob and a magnetic steel penetrating through the lever knob and connected to the temperature limiter of the heating plate are provided in the control device of the rice cooker. Lever, a knob is installed on the lever knob, and the displacement between the lever knob and the magnetic steel lever is adjusted through the knob. During the specific process, the magnetic steel lever and the lever knob are turned up and down Move to complete the switch control task. Its disadvantage is that the structure of using the lever button to make the magnet move up and down, because the space for the movement of the magnet lever is limited, it is easy to cause the situation that the displacement of the magnet lever is not in place or insensitive.

【Content of invention】

The purpose of the present invention is to completely solve the hidden dangers of the mechanical rice cooker that the heating plate cannot be heated or continuously heated due to the inability of the magnetic steel to be effectively attracted or bounced; Flowing into the cooker body; providing an electric rice cooker with sensitive keys, simple structure, good operation feel, more effective and reliable new function control structure.

To achieve the above object, the technical solution adopted in the present invention is:

An electric rice cooker with a new function control structure, comprising an upper cover assembly, an inner pot, an outer shell, an outer pot, a heating plate, a magnetic steel temperature limiter, a magnetic steel lever assembly, a panel assembly and a base, the heating plate is installed on the inner bottom of the outer pot, The magnetic steel temperature limiter is installed at the opening in the middle of the heating plate, the magnetic steel lever assembly is installed at the bottom of the outer pot, and the panel assembly is installed on the shell; the magnetic steel lever assembly includes a magnetic steel lever in the shape of a sideways "Y", A magnetic steel lever bracket fixed on the bottom of the outer pot and supporting the rotation of the magnetic steel lever, a micro switch for controlling the on-off of the heat preservation circuit, and a rotating shaft connecting the magnetic steel lever bracket and the magnetic steel lever The upper and lower ends of the magnetic steel lever are sideways "Y"-shaped bifurcated ends extending to the inner wall of the shell respectively, and the sideways "Y"-shaped end is connected with the pull rod of the magnetic steel temperature limiter; At least one button that can be elastically reset is provided, and the button is provided with a contact point that can be in contact with the upper and lower ends of the bifurcated end of the magnetic steel lever.

The bifurcated end of the magnetic steel lever uses the magnetic steel lever bracket as a fulcrum to form a double fulcrum structure, and the fulcrum of each bifurcated end of the magnetic steel lever can selectively contact or separate from the corresponding contact of the button.

The button is arranged on the panel assembly, and the panel assembly also includes a panel installed on the casing, an elastic member and a baffle fixed on the inner wall side of the panel, the button is a single button, and the elastic member The key is installed between the key and the baffle and the key is elastically pre-tightened on the panel. The upper and lower sides of the key are respectively provided with upper and lower contacts that can be in contact with or separated from the upper and lower ends of the bifurcated end of the magnetic steel lever.

A heat insulating element can be added on the contact side of the button and the bifurcated end of the magnetic steel lever, or one or both of the button and the bifurcated end of the magnetic steel lever are made of heat insulating material.

The micro switch is fixed on the side of the magnetic steel lever bracket.

The magnetic steel lever bracket is fixed on the bottom of the outer pot by fasteners.

The elastic member is a spring.

Advantages of the present invention:

The difference between the present invention and the previous use of the lever button to move up and down to control the magnet is that the magnet temperature limiter is controlled by the front and rear movement of the button, and the bifurcated end of the "Y" shaped magnet lever that is tilted sideways is used. The lever bracket is the fulcrum, and the double fulcrum structure is used to control the action of the magnetic steel temperature limiter, which completely solves the quality hidden danger of the mechanical rice cooker that the heating plate cannot be heated or continues to heat because the magnetic steel cannot be effectively attracted or bounced; When no pressure is applied to it, the elastic connection is automatically reset by the elastic force of the spring, which completely avoids the soup juice flowing into the pot due to the large fit gap between the lever button and the shell, causing aging and damage to the internal parts, and adopts the front and rear buttons The control method has a sensitive mechanism, and the button operation feels good, and it can be operated quickly with just one touch, which is more effective and reliable.

【Description of drawings】

Fig. 1 is the explosion diagram of electric cooker of the present invention;

Fig. 2 is the partial structure cross-sectional schematic diagram when the magnetic steel temperature limiter of the electric cooker of the present invention bounces off;

Fig. 3 is a partial structure sectional schematic diagram when the magnetic steel temperature limiter of the electric cooker of the present invention is sucked in;

Fig. 4 is the structural representation of electric cooker magnetic steel lever assembly of the present invention;

Fig. 5 is a schematic structural view of the panel assembly of the electric rice cooker of the present invention.

In the figure: 1. Upper cover assembly, 2. Inner pot, 3. Shell, 4. Outer pot, 5. Heating plate, 6. Magnetic steel temperature limiter, 60. Magnetic steel pull rod, 61. Magnet, 7. Magnetic steel Lever assembly, 70, magnetic steel lever, 701, upper end, 702, lower end, 703, end, 71, rotating shaft, 72, magnetic steel lever bracket, 73, micro switch, 8, panel assembly, 80, panel, 81, button, 82, spring, 83, baffle plate, 9, base, 10, fastener.

【Detailed ways】

As shown in Figures 1 to 5, this embodiment provides an electric rice cooker with a new function control structure, including an upper cover assembly 1, an inner pot 2, an outer shell 3, an outer pot 4, a heating plate 5, and a magnetic steel temperature limiter 6 , the magnetic steel lever assembly 7, the panel assembly 8 and the base 9, the heating plate 5 is installed on the inner bottom of the outer pot 4, the magnetic steel temperature limiter 6 is installed at the opening in the middle of the heating plate 5, and the panel assembly 8 is installed on the side wall of the shell 3 The magnetic steel lever assembly 7 includes a magnetic steel lever 70 in a sideways "Y" shape, a magnetic steel lever bracket 72 fixed on the bottom of the outer pot 4 and supporting the rotation of the magnetic steel lever 70, and a magnetic steel lever bracket 72 located at the bottom of the outer pot 4 The micro switch 73 on the lower side of the magnetic steel lever 70, and a rotating shaft 71 connecting the magnetic steel lever bracket 72 and the magnetic steel lever 70; the magnetic steel lever 70 is in a sideways "Y" shape, The upper and lower ends (701, 702) of the bifurcated ends extend to the inner wall of the housing 3 respectively, and the sideways "Y" shaped end 703 is connected with the magnetic steel pull rod 60 of the magnetic steel temperature limiter 6; the magnetic steel lever The bracket 72 is fixed on the bottom of the outer pot 4 by the fastener 10, and the magnetic steel lever 70 is rotatably fixed on the magnetic steel lever support 72 by the rotating shaft 71.

Continue as shown in Fig. 3, Fig. 4 and Fig. 5, the panel assembly 8 also includes a panel 80 installed on the casing 3, a button 81, a spring 82 and a baffle 83 fixed on the inner wall side of the panel 80, the button 81 is used A single button made of heat insulating material, the spring 82 is installed between the button 81 and the baffle 83 and the button 81 is elastically pre-tightened on the panel 80, the baffle 83 is fixed on the rear side of the panel 80 by screws, the up and down of the button 81 The upper and lower contacts (810, 811) that can contact the upper and lower ends (701, 702) of the bifurcated end of the magnetic steel lever 70 are respectively provided on the side, and the bifurcated end of the magnetic steel lever 70 is formed by the magnetic steel lever bracket 72. The fulcrums form a double fulcrum structure, when one fulcrum (upper end 701) is in contact with the corresponding contact of the key (upper contact 810), the other fulcrum (lower end 702) is separated from the other corresponding contact of the key (lower contact 811) .

As shown in FIGS. 2 and 3 , the microswitch 73 is arranged on the underside of the magnetic steel lever 70 and fixed on the side of the magnetic steel lever bracket 72 , and is opposite to the magnetic steel lever 70 .

When the electric cooker is in use, as shown in Figure 2, the magnet 61 on the magnetic steel temperature limiter 6 is in a pop-up state, and the heating circuit is disconnected. At this time, the magnetic steel lever 70 pushes the contact of the micro switch 73 located below it. , the micro switch 73 is closed, the heat preservation circuit is connected, and the electric rice cooker enters the heat preservation state. Then push the button 81 to move to the right, and the restoring force of the spring 82 resets the button 81 after letting go. The rotating shaft 71 rotates in the counterclockwise direction, and the end portion 703 of the magnetic steel lever 70 pushes the magnetic steel pull rod 60 to move upward, so that the magnet 61 is attracted (as shown in FIG. 3 ), and the heating circuit is connected. The contact of switch 73, micro switch 73 is disconnected, and insulation circuit is disconnected, and electric rice cooker enters working state.

Push the button 81 to move to the right again, as shown in Figure 3, after letting go, the restoring force of the spring 82 makes the button 81 reset, and the upper contact 810 pushes the fulcrum formed by the upper end 701 of the bifurcated end of the magnetic steel lever 70 during the reciprocating movement of the button 81 , so that the magnetic steel lever 70 rotates clockwise along the rotating shaft 71, the end portion 703 of the magnetic steel lever 70 pushes the magnetic steel pull rod 60 to move downward, so that the magnet 61 bounces off (as shown in Figure 2), the heating circuit is disconnected, Now the magnetic steel lever 70 promotes the contact of the microswitch 73, the microswitch 73 is closed, the heat preservation circuit is connected, and the electric cooker enters the heat preservation state again.

When the rice cooker is working under the working state of cooking porridge or rice, when the temperature of the magnet 61 reaches the temperature limit temperature, the magnetic steel pull rod 60 will be used as an active part to push the magnetic steel lever 70 to rotate clockwise along the rotating shaft 71 (the working principle diagram is shown in the figure 2), it plays the role of temperature limit protection.

Of course, the panel assembly of the present invention can also be provided with two buttons with elastic reset, and each button is provided with a contact point that is in contact with the bifurcated end of the magnetic steel lever respectively, and the suction and spring of the magnetic steel are respectively controlled by the two buttons. On the other hand, obvious changes made according to the hints of the above embodiments, and other changes that do not depart from the essence of the present invention shall be included within the scope of the claims.

Claims (7)

1. electric cooker with new function control structure, comprise cover assembly, interior pot, shell, outer pot, heat-generating disc, magnetic steel temperature limiter, magnet steel lever assembly, panel assembly and base, heat-generating disc is installed in the outer pot inside bottom, magnetic steel temperature limiter is installed in heat-generating disc middle port place, the magnet steel lever assembly is installed in outer pot bottom, and panel assembly is installed on the shell; It is characterized in that,

Described magnet steel lever assembly comprises that one is the magnet steel lever that side is fallen " Y " shape, one is fixed on described outer pot bottom and supports the magnet steel lever dolly that described magnet steel lever rotates, the microswitch of one control thermal circuit break-make, and the rotating shaft of a described magnet steel lever dolly of connection and described magnet steel lever;

Described magnet steel lever is side and falls the upper and lower end portion of " Y " shape divergent ends and extend to the outer casing inner wall side respectively, and " Y " shape terminal part that side is fallen is connected with the pull bar of magnetic steel temperature limiter;

But described electric cooker also is provided with the button of at least one elastic reset, and button is provided with the contact that can contact with the upper and lower end of magnet steel lever divergent ends.

2. a kind of electric cooker according to claim 1 with new function control structure, it is characterized in that, the divergent ends of described magnet steel lever is that fulcrum constitutes two fulcrum structures with the magnet steel lever dolly, and the fulcrum of each divergent ends of magnet steel lever optionally contacts with the corresponding contact of described button or separates.

3. a kind of electric cooker according to claim 2 with new function control structure, it is characterized in that, described button is arranged on the described panel assembly, described panel assembly also comprises panel, elastic component that is installed on the shell and the baffle plate that is fixed on described panel inner wall side, described button is a single button, described elastic component be installed between button and the baffle plate and with button elasticity pretension on panel, the upper and lower side of button be respectively equipped with can with the upper and lower end contact of magnet steel lever divergent ends or the upper and lower contact of separating.

4. according to claim 1 or 3 described a kind of electric cookers with new function control structure, it is characterized in that, described button and magnet steel lever divergent ends contact side can increase heat insulating element, and perhaps the one of button and magnet steel lever divergent ends or both itself adopt heat-barrier material to make.

5. according to claim 1 or 3 described a kind of electric cookers, it is characterized in that described microswitch is fixed on the side of the magnet steel lever dolly of described magnet steel lever downside with new function control structure.

6. according to claim 1 or 3 described a kind of electric cookers, it is characterized in that described magnet steel lever dolly is fixed on outer pot bottom by securing member with new function control structure.

7. a kind of electric cooker with new function control structure according to claim 3 is characterized in that described elastic component is a spring.

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