CN111990870A

CN111990870A - Electric rice cooker

Info

Publication number: CN111990870A
Application number: CN202010863209.6A
Authority: CN
Inventors: 梁豪英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-11-27

Abstract

The invention discloses an electric cooker which comprises a cooker body, wherein the cooker body is provided with a heater, the bottom of the cooker body is provided with an induction wall, the lower side surface of the induction wall is provided with a kick type temperature control switch in a contact manner, the kick type temperature control switch is in contact with the lower side wall of the induction wall, and the kick type temperature control switch is connected with the heater. The temperature control effect of the electric cooker is good by integrating the kick type temperature control switch in the electric cooker. And the material cost and the labor cost are saved. The invention is mainly used in the technical field of household appliances.

Description

Electric rice cooker

Technical Field

The invention relates to the technical field of household appliances, in particular to an electric cooker.

Background

The existing electric cooker generally adopts magnetic steel, a ram and a heat insulation board to realize temperature control of an inner container of the electric cooker, thereby realizing the function of cooking. However, this method has complex structure, poor temperature control effect and low efficiency. Moreover, this approach is costly and not conducive to saving material and labor costs.

Disclosure of Invention

The present invention is directed to an electric rice cooker, which solves one or more of the problems of the prior art and provides at least one of the advantages of the prior art.

The solution of the invention for solving the technical problem is as follows: the utility model provides an electric cooker, includes a kind of deep pot body, a kind of deep pot body is equipped with the heater, the bottom of a kind of deep pot body is equipped with the response wall, the downside contact of response wall is installed kick-type temperature detect switch, kick-type temperature detect switch with the downside wall contact of response wall, kick-type temperature detect switch and heater connection.

Further, the kick type temperature control switch includes: base, heat-conducting component, temperature sensing room, on-off mechanism and action pole, the heat-conducting component contacts with the downside of response wall, heat-conducting component and temperature sensing room heat conduction are connected, the base is equipped with and holds the chamber, it is connected with heat-conducting component through the temperature sensing room to hold the chamber, on-off mechanism sets up and holds in the chamber, be equipped with first temperature sensing piece and second temperature sensing piece in the temperature sensing room, action pole and second temperature sensing piece all are located the side of beating of first temperature sensing piece, the middle part of second temperature sensing piece is equipped with the through-hole, the internal diameter of through-hole is greater than the diameter of action pole, the action pole with the through-hole has the same center pin first temperature sensing piece with the contact of second temperature sensing piece, the action temperature of first temperature sensing piece is less than the action temperature of second temperature sensing piece, the reset temperature of first temperature sensing piece is higher than the reset temperature of second temperature sensing piece, the first temperature sensing piece is used for pushing the action rod to move, the switch mechanism is connected with the heater in series through a lead, and the action rod is used for controlling the switch mechanism to be switched on or switched off.

The first temperature-sensing piece and the second temperature-sensing piece are arranged, the action temperature of the first temperature-sensing piece is lower than that of the second temperature-sensing piece, and the reset temperature of the first temperature-sensing piece is higher than that of the second temperature-sensing piece. And set up the trompil on the second temperature-sensing piece, restricted the terminal temperature of heater through the second temperature-sensing piece, utilize first temperature-sensing piece to carry out constant temperature operation to the heater, improve control by temperature change efficiency.

Further, the switch mechanism includes: the temperature-sensing switch comprises a first external wiring end, a static contact, a second external wiring end, a reset reed and a guide frame, wherein the static contact is connected with the first external wiring end, the reset reed is connected with the second external wiring end, the guide frame is arranged between an accommodating cavity and a temperature sensing chamber, the first external wiring end and the second external wiring end are respectively connected with a heater, an opening used for installing an action rod is formed in the guide frame, the static contact is provided with a static contact, the reset reed is provided with a movable contact, the static contact and the movable contact are oppositely arranged, the action rod penetrates through the opening, one end face of the action rod is located on the jumping side of the first temperature sensing piece, and the other end face of the action rod is in contact with the reset reed.

Further, the static contact is connected with a first external terminal through a long rivet, and the reset reed is connected with a second external terminal through a short rivet.

Further, the heat conducting member is an aluminum cap.

Further, the aluminum cover is connected with the temperature control chamber in a surrounding edge rolling and closing mode. The aluminum cover and the temperature control chamber are connected more stably through the peripheral edge rolling closing-up mode.

Furthermore, the electric cooker also comprises a fixing component, the outer part of the base is connected with a support, the support is provided with a mounting hole, and the fixing component is fixedly connected with the lower side wall of the induction wall through the mounting hole.

Further, the reset reed is provided with a raised portion at a position contacting the other end surface of the operating rod.

The invention has the beneficial effects that: the utility model provides an electric cooker, including a kind of deep pot body, a kind of deep pot body is equipped with the heater, the bottom of a kind of deep pot body is equipped with the response wall, the downside contact of response wall is installed kick formula temperature detect switch, kick formula temperature detect switch with the downside wall contact of response wall, kick formula temperature detect switch and heater connection. The temperature control effect of the electric cooker is good by integrating the kick type temperature control switch in the electric cooker. Meanwhile, the material cost and the labor cost are saved.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic sectional view of the rice cooker;

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 4;

FIG. 4 is a schematic top view of a snap-action thermal switch;

fig. 5 is an enlarged schematic view of the structure at C in fig. 2.

The arrows of fig. 2 and 3 indicate up and down, respectively.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1, an electric cooker comprises a cooker body 900, wherein the cooker body 900 is provided with a heater (not shown), the bottom of the cooker body 900 is provided with an induction wall 910, a kick type temperature control switch 800 is installed on the lower side surface of the induction wall 910 in a contact manner, the kick type temperature control switch 800 is in contact with the lower side wall of the induction wall 910, and the kick type temperature control switch 800 is connected with the heater.

When the electric cooker works, the inner container contacts the induction wall 910, and the induction wall 910 transfers heat to the kick type temperature control switch 800. The kick type temperature control switch 800 thus knows the temperature of the inner container and controls the heat of the heater according to the temperature of the inner container, thereby realizing reliable temperature control of the inner container.

Referring to fig. 2, 3, 4 and 5, the kick type temperature control switch 800 is widely used, and almost all heat-generating electric appliances are used. However, when the conventional kick type temperature controlled switch 800 is applied to an electric cooker, the temperature controlled switch is likely to jump early, and sometimes, in order to reach the specified temperature of the heater, the kick type temperature controlled switch 800 needs to be buffered by numerous early jumps to reach the specified temperature. So that the temperature control efficiency of the temperature control switch is not high. To this end, in some preferred embodiments, the selected kick type temperature controlled switch 800 includes: the temperature sensing device comprises a base 300, a heat conducting member 200, a temperature sensing chamber 100, a switch mechanism and an action rod 102, wherein the heat conducting member 200 is in contact with the lower side surface of a sensing wall 910, the heat conducting member 200 is in heat conduction connection with the temperature sensing chamber 100, the base 300 is provided with a containing cavity, the containing cavity is connected with the heat conducting member 200 through the temperature sensing chamber, the switch mechanism is arranged in the containing cavity, a first temperature sensing piece 110 and a second temperature sensing piece 120 are arranged in the temperature sensing chamber 100, the action rod 102 and the second temperature sensing piece 120 are both positioned on the jumping side of the first temperature sensing piece 110, a through hole 121 is arranged in the middle of the second temperature sensing piece 120, the inner diameter of the through hole 121 is larger than the diameter of the action rod 102, the action rod 102 and the through hole 121 have the same central axis 101, the first temperature sensing piece 110 is in contact with the second temperature sensing piece 120, the action temperature sensing piece 110 is lower than the second temperature sensing piece 120, the reset temperature of the first temperature sensing piece 110 is higher than that of the second temperature sensing piece 120, the first temperature sensing piece 110 is used for pushing the action rod 102 to move, the switch mechanism is connected with the heater in series through a lead, and the action rod 102 is used for controlling the on/off of the switch mechanism.

The jumping side of the first temperature-sensing chip 110 means a side of a direction in which the first temperature-sensing chip 110 jumps when reaching the operating temperature. As shown in fig. 2 and 3, for convenience of description, the jumping side of the first temperature sensing chip 110 is defined as the lower side, that is, the first temperature sensing chip 110 jumps downward when jumping, and similarly, the first temperature sensing chip resets upward when jumping.

The specific work is as follows: when the temperature-sensing chamber 100 receives heat and increases the temperature, the operating temperature of the first temperature-sensing piece 110 is lower than the operating temperature of the second temperature-sensing piece 120, and thus the temperature reaches the operating temperature of the first temperature-sensing piece 110. When the temperature reaches the operating temperature of the first temperature sensing piece, the second temperature sensing piece 120 does not operate, so that the operation of the first temperature sensing piece 110 is restricted, and the first temperature sensing piece 110 is temporarily disabled. When the temperature rises to the operating temperature of the second temperature-sensing piece 120, the second temperature-sensing piece 120 jumps, and the first temperature-sensing piece 110 is released. Since the middle portion of the second temperature sensing piece 120 is provided with the through hole 121, the second temperature sensing piece 120 can avoid the action rod 102 through the through hole 121, so that the first temperature sensing piece 110 can freely act on the action rod 102. At this time, since the current temperature is higher than the jumping temperature of the first temperature sensing piece 110, the first temperature sensing piece 110 jumps, the actuating rod 102 is pushed downwards, the actuating rod 102 pushes the switch mechanism downwards, so that the switch mechanism disconnects the power supply of the heater, the heater is powered off, the heater reduces heat generation, when the temperature is lower than the reset temperature of the first temperature sensing piece 110, the first temperature sensing piece 110 resets, and since the reset temperature of the first temperature sensing piece 110 is higher than the reset temperature of the second temperature sensing piece 120, the second temperature sensing piece 120 does not reset at this time. When the first temperature-sensing piece 110 is reset, the switch mechanism is reset, and the heater is energized. The circulation is carried out in such a way that the temperature of the heater is controlled within a certain range. When the second temperature sensing chip 120 is reset, the movement of the first temperature sensing chip 110 is restricted. Therefore, the first temperature sensing piece 110 plays a role of keeping the temperature of the heater constant, and the second temperature sensing piece 120 plays a role of controlling the terminal temperature of the heater during the entire temperature control process.

The first temperature sensing piece 110 and the second temperature sensing piece 120 are arranged, the action temperature of the first temperature sensing piece 110 is lower than that of the second temperature sensing piece 120, the reset temperature of the first temperature sensing piece 110 is higher than that of the second temperature sensing piece 120, the second temperature sensing piece 120 is provided with an opening, the terminal temperature of the heater is limited through the second temperature sensing piece 120, the first temperature sensing piece 110 is used for carrying out constant temperature operation on the heater, and the temperature control efficiency is improved.

In some preferred embodiments, in combination with fig. 2, 3 and 5, the switch mechanism comprises: the temperature-sensing switch comprises a first external terminal 510, a static contact 320, a second external terminal 520, a reset reed 310 and a guide frame 330, wherein the static contact 320 is connected with the first external terminal 510, the reset reed 310 is connected with the second external terminal 520, the guide frame 330 is arranged between a containing cavity and a temperature sensing chamber 100, the first external terminal 510 and the second external terminal 520 are respectively connected with a heater, an opening for installing an action rod 102 is arranged on the guide frame 330, the static contact 320 is provided with a static contact 321, the reset reed 310 is provided with a movable contact 311, the static contact 321 is opposite to the movable contact 311, the action rod 102 penetrates through the opening, one end face of the action rod 102 is positioned on the jumping side of the first temperature sensing reed 110, and the other end face of the action rod 102 is contacted with the reset reed 310.

The heater is connected in series with a first external terminal 510 and a second external terminal 520. When the temperature-sensing chamber 100 receives heat and increases the temperature, the operating temperature of the first temperature-sensing piece 110 is lower than the operating temperature of the second temperature-sensing piece 120, and thus the temperature reaches the operating temperature of the first temperature-sensing piece 110. When the temperature reaches the operating temperature of the first temperature sensing piece, the second temperature sensing piece 120 does not operate, so that the operation of the first temperature sensing piece 110 is restricted, and the first temperature sensing piece 110 is temporarily disabled. When the temperature rises to the operating temperature of the second temperature-sensing piece 120, the second temperature-sensing piece 120 jumps, and the first temperature-sensing piece 110 is released. Since the middle portion of the second temperature sensing piece 120 is provided with the through hole 121, the second temperature sensing piece 120 can avoid the action rod 102 through the through hole 121, so that the first temperature sensing piece 110 can freely act on the action rod 102. At this time, since the current temperature is higher than the jumping temperature of the first temperature sensing piece 110, the first temperature sensing piece 110 jumps, the actuating lever 102 is pushed down, the actuating lever 102 pushes down the reset spring 310, the movable contact 311 of the reset spring 310 is separated from the stationary contact 321 of the stationary contact 320, and the first external terminal 510 and the second external terminal 520 are separated. The heater is powered off, the heater reduces heat generation, when the temperature is lower than the reset temperature of the first temperature sensing piece 110, the first temperature sensing piece 110 resets, and the reset temperature of the first temperature sensing piece 110 is higher than the reset temperature of the second temperature sensing piece 120, so that the second temperature sensing piece 120 is not reset at this time. When the first temperature-sensing piece 110 is reset, the reset spring 310 is reset, the movable contact 311 of the reset spring 310 contacts the stationary contact 321 of the stationary contact 320, and the heater is energized.

In some preferred embodiments, the stationary contact 320 is connected to the first external terminal 510 by a long rivet 511, and the return spring 310 is connected to the second external terminal 520 by a short rivet 521.

In some preferred embodiments, the heat conductive member 200 is an aluminum cap. The aluminum cover is connected with the temperature control chamber in a surrounding edge rolling and closing mode. The aluminum cover is more firmly connected with the temperature control chamber 100 through the peripheral edge rolling closing-up mode.

In some preferred embodiments, the rice cooker further comprises a fixing member, wherein a bracket 400 is connected to the outside of the base 300, and a mounting hole 410 is formed on the bracket 400. The fixing member is fixedly connected with the lower sidewall of the sensing wall 910 through the mounting hole. The temperature controlled switch can be conveniently mounted on the lower sidewall of the sensing wall 910 through the mounting hole 410 using a fixing member, which may be a bolt.

In some preferred embodiments, the reset spring 310 is provided with a raised portion 312 at a position contacting with the other end surface of the actuating rod 102.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention and its scope is defined by the claims appended hereto.

Claims

1. The utility model provides an electric rice cooker, includes a kind of deep pot body, a kind of deep pot body is equipped with the heater, its characterized in that: the bottom of the cooker body is equipped with the response wall, the downside contact of response wall is installed kick formula temperature detect switch, kick formula temperature detect switch with the downside wall contact of response wall, kick formula temperature detect switch and heater connection.

2. The rice cooker as claimed in claim 1, wherein: the kick type temperature control switch comprises: base, heat-conducting component, temperature sensing room, on-off mechanism and action pole, the heat-conducting component contacts with the downside of response wall, heat-conducting component and temperature sensing room heat conduction are connected, the base is equipped with and holds the chamber, it is connected with heat-conducting component through the temperature sensing room to hold the chamber, on-off mechanism sets up and holds in the chamber, be equipped with first temperature sensing piece and second temperature sensing piece in the temperature sensing room, action pole and second temperature sensing piece all are located the side of beating of first temperature sensing piece, the middle part of second temperature sensing piece is equipped with the through-hole, the internal diameter of through-hole is greater than the diameter of action pole, the action pole with the through-hole has the same center pin, first temperature sensing piece with the contact of second temperature sensing piece, the action temperature of first temperature sensing piece is less than the action temperature of second temperature sensing piece, the reset temperature of first temperature sensing piece is higher than the reset temperature of second temperature sensing piece, the first temperature sensing piece is used for pushing the action rod to move, the switch mechanism is connected with the heater in series through a lead, and the action rod is used for controlling the switch mechanism to be switched on or switched off.

3. The rice cooker as claimed in claim 2, wherein: the switch mechanism includes: the temperature-sensing switch comprises a first external wiring end, a static contact, a second external wiring end, a reset reed and a guide frame, wherein the static contact is connected with the first external wiring end, the reset reed is connected with the second external wiring end, the guide frame is arranged between an accommodating cavity and a temperature sensing chamber, the first external wiring end and the second external wiring end are respectively connected with a heater, an opening used for installing an action rod is formed in the guide frame, the static contact is provided with a static contact, the reset reed is provided with a movable contact, the static contact and the movable contact are oppositely arranged, the action rod penetrates through the opening, one end face of the action rod is located on the jumping side of the first temperature sensing piece, and the other end face of the action rod is in contact with the reset reed.

4. The rice cooker as claimed in claim 3, wherein: the static contact is connected with the first external terminal through a long rivet, and the reset reed is connected with the second external terminal through a short rivet.

5. The rice cooker as claimed in claim 2, wherein: the heat conducting member is an aluminum cap.

6. The rice cooker as claimed in claim 5, wherein: the aluminum cover is connected with the temperature control chamber in a surrounding edge rolling and closing mode.

7. The rice cooker as claimed in claim 2, wherein: the induction wall is characterized by further comprising a fixing component, a support is connected to the outer portion of the base, a mounting hole is formed in the support, and the fixing component is fixedly connected with the lower side wall of the induction wall through the mounting hole.

8. The rice cooker as claimed in claim 3, wherein: the reset spring is provided with a bulge part at the position contacted with the other end surface of the action rod.