CN115642042A - Power-off protection control switch of toaster - Google Patents

Power-off protection control switch of toaster Download PDF

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Publication number
CN115642042A
CN115642042A CN202210394055.XA CN202210394055A CN115642042A CN 115642042 A CN115642042 A CN 115642042A CN 202210394055 A CN202210394055 A CN 202210394055A CN 115642042 A CN115642042 A CN 115642042A
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China
Prior art keywords
toaster
movable contact
control switch
power
fixed contact
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Pending
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CN202210394055.XA
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Chinese (zh)
Inventor
李晓东
吴柏纯
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DONGGUAN NINGRUI SWITCH CO LTD
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DONGGUAN NINGRUI SWITCH CO LTD
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Publication of CN115642042A publication Critical patent/CN115642042A/en
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Abstract

The invention discloses a power-off protection control switch of a toaster, which comprises a starting pressing handle, a cover shell and a base component, wherein the cover shell is connected with the base component through a buckle; the rotating block assembly is internally clamped with an armature sheet, the electrical assembly comprises an electromagnet group, a movable contact group and a fixed contact group, the movable contact group and the fixed contact group are connected with the base shell in a buckling mode, and the electromagnet group is abutted between the base shell and the cover shell. The invention realizes automatic power-off control through simple structure combination, can reduce the cost of the control switch, particularly greatly reduces the assembly cost of the toaster in practical application, realizes the iterative upgrade of the existing control switch, and thus creates economic value.

Description

Power-off protection control switch of toaster
The technical field is as follows:
the invention relates to the technical field of mechanical switches, in particular to a power-off protection control switch of a toaster.
The background art comprises the following steps:
toaster, english name Toaster, is called automatic toast oven and Toaster in China, which is an electric heating cooking utensil specially used for toasting slice bread again. With the accelerated pace of life, more people depend on the small electric appliance, so that the bread slices can be baked to be scorched yellow, the fragrance of the bread slices is stronger, the mouthfeel of the bread slices is better, and the appetite is promoted. The toaster has the advantages of small volume, convenient use, electricity saving and the like.
The existing toaster is generally provided with an operating handle adjusted in a pressing mode on one side, the normally open contact of an internal switch is connected after the operating handle is pressed down, the toaster starts to bake, and when the toasting time of the toaster reaches the set toasting time, the operating handle is automatically released, and the normally open contact is disconnected. Because the operating handle and the lifting frame in the toaster move synchronously, when the lifting frame in the toaster is blocked by food or has other faults, the operating handle cannot be released, so that the internal switch is always in a connected state, the heating wire always heats and toasts bread, and if not found, accidents such as fire disasters and the like can be easily caused.
For avoiding the potential safety hazard and meeting the requirement of safety standard, the existing toaster is generally additionally provided with an emergency switch or is integrated with the emergency switch in a switch main body for forcibly powering off the toaster, however, the arrangement of a plurality of switches in the toaster can lead to the increase of the cable connection of the toaster and the tedious assembly steps of the toaster, thereby increasing the volume of the toaster, having high assembly cost, complex process and poor stability and influencing the market competitiveness of the product. At present, no better treatment method exists, so that further improvement and perfection are needed.
The invention content is as follows:
the invention aims to solve the problems in the prior art, and provides a power-off protection control switch for a toaster, which can automatically cut off power after the power of the toaster is connected and cannot be cut off as long as a clock control circuit has no fault, no matter a handle, a lifting frame, a bracket and the like of the toaster are accidentally pressed or blocked when a power plug is not pulled out.
In order to achieve the purpose, the invention provides a power-off protection control switch of a toaster, which comprises a starting pressing handle, a cover shell and a base component, wherein the cover shell is connected with the base component through a buckle; the rotating block assembly is internally clamped with an armature sheet, the electrical assembly comprises an electromagnet group, a movable contact sheet group and a fixed contact sheet group, the movable contact sheet group and the fixed contact sheet group are both connected with the base shell in a buckling manner, and the electromagnet group is abutted between the base shell and the cover shell;
further, under the driving of the driving part, the rotating block assembly deflects in the counterclockwise direction to press the movable contact set, so that at least one movable contact of the movable contact set is in contact conduction with at least one fixed contact of the fixed contact set and then supplies power to a clock control circuit of the toaster, the clock control circuit supplies power to the electromagnet set, the electromagnet set is electrified to generate magnetic force to attract the armature sheet so as to lock the contact conduction of the movable contact and the fixed contact; when the clock control circuit stops providing a driving power supply for the electromagnet group, the rotating block assembly deflects clockwise under the driving of the elastic reset piece and abuts against the movable contact group to enable the movable contact to be disconnected from the fixed contact, so that the automatic power-off of the toaster is realized.
As an improvement of the power-off protection control switch of the toaster, the top of the rotating block assembly is provided with a limiting bending part, the outer side of the limiting bending part is provided with an arc abutting part, the rotating block assembly realizes anticlockwise deflection through low pressure of the driving part on the arc abutting part, two side ends of the rotating block assembly are provided with bosses, and the rotating block assembly is pivoted on the base shell through the bosses.
As an improvement of the toaster power-off protection control switch, the other side of the lower part of the starting pressing handle is provided with a limiting part in a stamping and bending way, the bending angle of the limiting part is set to be matched with the bending angle of the limiting bending part, the starting pressing handle realizes limiting through the hooking of the limiting bending part and the limiting part, and meanwhile, a certain gap is formed between the driving part and the arc abutting part.
As an improvement of the toaster power-off protection control switch, the elastic reset piece is a spring, the bottom of the rotating block assembly is provided with a pressing part, a cavity part is arranged in the base shell in a concave mode, one end of the spring abuts against the cavity part, and the other end of the spring is inserted into the pressing part to be pressed.
As an improvement of the power-off protection control switch for the toaster, the fixed contact piece comprises a first electrode end, a second electrode end, a first conductive sheet and a second conductive sheet, the fixed contact comprises a first fixed contact and a second fixed contact, the first electrode end and the second electrode end extend out and are clamped at one end of the base shell, the first electrode end and the first conductive sheet are integrally formed, the second electrode end and the second conductive sheet are integrally formed, and the first fixed contact and the second fixed contact are respectively and fixedly connected to one ends of the first conductive sheet and the second conductive sheet.
As an improvement of the power-off protection control switch of the toaster, the movable contact set comprises a third electrode end, a fourth electrode end, a third conducting strip and a fourth conducting strip, the movable contact comprises a first movable contact and a second movable contact, the third electrode end and the fourth electrode end extend out and are clamped at the other end of the base shell, the third electrode end and the third conducting strip are integrally formed, the fourth electrode end and the fourth conducting strip are integrally formed, and the first movable contact and the second movable contact are respectively and fixedly connected with one ends of the third conducting strip and the fourth conducting strip.
As an improvement of the power-off protection control switch for the toaster, the third conducting strip and the fourth conducting strip both have elasticity, the bottom of the rotating block assembly is provided with a butting driving part, and the third conducting strip and the fourth conducting strip are deformed, bent downwards or upwards under the butting driving of the butting driving part so as to realize the contact conduction of the movable contact and the fixed contact.
As an improvement of the power-off protection control switch of the toaster, two conducting wires are fixedly arranged at the top of the electromagnet group in an extending mode, and the two conducting wires penetrate through two grooves in the electromagnet group to be connected with the clock control circuit.
As an improvement of the power-off protection control switch of the toaster, the top of the starting pressing handle is provided with a hook hole, and the hook hole is connected with a handle of the toaster in a hook mode.
Further, when the starting pressing handle moves downwards from top to bottom under the external force of the handle of the toaster, the driving part on the starting pressing handle pushes the rotating block component to deflect in the anticlockwise direction, so that the rotating block component drives the movable contact group to deform downwards to enable the fixed contact and the movable contact to be in contact conduction, the circuit of the control switch is electrified to supply power to the clock control circuit, meanwhile, the clock control circuit is electrified to the electromagnet group to generate magnetic force to attract the armature sheet, and the rotating block component is locked to press and drive the movable contact group to keep the fixed contact and the movable contact in stable conduction;
when the clock control circuit stops providing a driving power supply for the electromagnet group, the magnetic force between the movable contact set and the electromagnet group disappears, the rotating block assembly is deflected clockwise under the acting force of the elastic reset piece to be separated from the electromagnet group, the movable contact is disconnected from the fixed contact, so that the automatic power-off of the toaster is realized, and meanwhile, the rotating block assembly releases the limitation on the starting pressure handle.
As described above, the present invention is mainly directed to the automatic power-off control of a toaster. Compared with the prior art, when the starting pressing handle moves from top to bottom under the external force of the pressing of the handle of the toaster, the driving part on the starting pressing handle pushes the rotating block assembly to deflect in the anticlockwise direction, so that the bottom of the rotating block assembly drives the movable contact group to bend downwards or bend downwards to enable the fixed contact and the movable contact to be in contact conduction or disconnection, and the circuit of the control switch is electrified or powered off. The circuit is electrified to supply power to the clock control circuit so as to electrify the electromagnet group, the electromagnet group generates magnetic force to attract the armature sheet, and therefore the rotating block assembly is locked to push and drive the movable contact set so as to keep the stable conduction of the fixed contact and the movable contact. When the clock control circuit stops providing a driving power supply for the electromagnet group, the rotating block assembly deflects clockwise under the driving of the elastic reset piece and presses the movable contact to be disconnected with the fixed contact, so that the automatic power-off of the toaster is realized. The automatic safe power-off control is realized through the simple structure combination, the control switch cost can be reduced, particularly the assembly cost of the toaster is greatly reduced in practical application, the iterative upgrade of the existing toaster control switch is realized, and therefore the obvious economic value is created. The connection relation of cables in the toaster can be simplified, the assembly efficiency of the toaster can be improved, the production cost of the whole toaster is reduced, and the method has great significance for improving market competitiveness.
In addition, the two states of the control switch of the prior art are controlled by the structural components of the toaster, for example, the on state of the control switch must be pushed by the structural components, and the off state of the control switch must be released by the structural components. After the fixed contact and the movable contact are in contact conduction, the driving part does not press the driving arc abutting part any more to restrict the conduction state of the control switch, and the limiting bending part is continuously hooked with the limiting part to control the reset and the rise of the starting pressing handle, so that the limiting bending part can reset and release the limitation on the limiting part under the action of the spring when the clock control circuit stops providing the driving power supply for the electromagnet group, and the potential safety hazards of fire hazard and the like caused by the fact that the starting pressing handle cannot be released after food blockage or other faults occur in the toaster baking work of the control switch in the prior art and the control switch cannot be automatically powered off are avoided.
Description of the drawings:
in order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a power-off protection control switch of a toaster according to an embodiment of the present invention;
FIG. 2 is a perspective view of the toaster power-off protection control switch shown in FIG. 1 with the cover shell removed;
FIG. 3 is a schematic perspective view of the toaster power-off protection control switch shown in FIG. 1 with the cover shell and the base shell removed;
FIG. 4 is another perspective view of the toaster power-off protection control switch shown in FIG. 2 with the cover shell and the base shell removed;
fig. 5 is a circuit diagram of a power-off protection control switch of a toaster according to an embodiment of the present invention.
The reference numerals include:
1-starting pressing handle 11-driving part 12-limiting part 13-hooking hole
2-cover shell
3-base assembly 31-base shell
32-rotating block assembly 321-armature sheet 322-limit bending part 323-circular arc abutting part 324-boss 325-abutting part 326-abutting driving part 327-elastic resetting piece
33-electric component 331-electromagnet group 332-movable contact set 333-fixed contact set
3311-groove
3321 third electrode end 3322 fourth electrode end 3323 third conducting strip 3324 fourth conducting strip 3325 third moving contact 3326 fourth moving contact
3331 first electrode end 3332 second electrode end 3333 first conducting strip 3334 second conducting strip 3335 first fixed contact 3336 second fixed contact
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a power-off protection control switch of a toaster.
Referring to fig. 1 to 4, a power-off protection control switch for a toaster according to a part of embodiments of the present invention is mainly applied to a toaster or other small heating appliances, and includes a starting pressing handle 1, a cover housing 2 and a base assembly 3, wherein the cover housing 2 is connected to the base assembly 3 through a buckle, the starting pressing handle 1 is insertable into the cover housing 2, a driving portion 11 is disposed on one side of a lower portion of the starting pressing handle 1, a base housing 31, a rotating block assembly 32 and an electrical assembly 33 are disposed in the base assembly 3, and the rotating block assembly 32 is pivotally connected to the base housing 31 and is pressed and driven by the starting pressing handle 1; an armature sheet 321 is clamped in the rotating block assembly 32, the electrical assembly 33 comprises an electromagnet group 331, a movable contact sheet group 332 and a fixed contact sheet group 333, the movable contact sheet group 332 and the fixed contact sheet group 333 are both connected with the base shell 31 in a buckling manner, and the electromagnet group 331 is abutted between the base shell 31 and the cover shell 2;
further, under the driving of the driving part 11, the rotating block assembly 32 deflects counterclockwise to press the movable contact set 332, so that at least one movable contact of the movable contact set is in contact with at least one fixed contact of the fixed contact set 333 to supply power to a clock control circuit of the toaster, the clock control circuit supplies power to the electromagnet set 331, the electromagnet set 331 is powered to generate magnetic force to attract the armature sheet 321 to lock the contact conduction of the movable contact and the fixed contact; when the clock control circuit stops providing the driving power to the electromagnet group 331, the rotating block assembly 32 deflects clockwise under the driving of the elastic reset piece 322 and presses against the movable contact group, so that the movable contact is disconnected from the fixed contact under the driving of the elastic reset piece 322 to realize the automatic power off of the toaster.
As an improvement of the power-off protection control switch for the toaster of the present invention, a limiting bending portion 322 is disposed at the top of the rotating block assembly 32, an arc abutting portion 323 is disposed at the outer side of the limiting bending portion 322, the rotating block assembly 32 realizes counterclockwise deflection through the low pressure of the driving portion 11 on the arc abutting portion 323, bosses 324 are disposed at the two side ends of the rotating block assembly 32, and the rotating block assembly 32 is pivotally connected to the base shell 31 through the bosses 324.
As an improvement of the toaster power-off protection control switch of the present invention, the other side of the lower portion of the starting pressing handle 1 is provided with a limiting portion 12 by stamping and bending, the bending angle of the limiting portion 12 is set to be matched with the bending angle of the limiting bending portion 322, the starting pressing handle 1 realizes limiting through the hooking of the limiting bending portion 322 and the limiting portion 12, and a certain gap is formed between the driving portion 11 and the arc abutting portion 323.
As an improvement of the toaster power-off protection control switch of the present invention, the elastic reset piece 322 is a spring, the bottom of the rotating block assembly 32 is provided with a pressing portion 325, the bottom seat shell 31 is recessed to form a cavity portion, one end of the elastic reset piece 322 is pressed against the cavity portion, and the other end of the elastic reset piece 322 is inserted into the pressing portion 325 for pressing.
As an improvement of the power-off protection control switch for the toaster, the fixed contact piece set 333 includes a first electrode end 3331, a second electrode end 3332, a first conductive piece 3333 and a second conductive piece 3334, the fixed contact includes a first fixed contact 3335 and a second fixed contact 3336, the first electrode end 3331 and the second electrode end 3332 extend out and are clamped at one end of the base shell 31, the first electrode end 3331 and the first conductive piece 3333 are integrally formed, the second electrode end 3332 and the second conductive piece 3334 are integrally formed, and the first fixed contact 3335 and the second fixed contact 3336 are respectively and fixedly connected to one ends of the first conductive piece 3333 and the second conductive piece 3334.
As an improvement of the power-off protection control switch for the toaster according to the present invention, the movable contact set 332 includes a third electrode 3321, a fourth electrode 3322, a third conductive sheet 3323 and a fourth conductive sheet 3324, the movable contact includes a first movable contact 3325 and a second movable contact 3326, the third electrode 3321 and the fourth electrode 3322 extend out and are connected to the other end of the base housing 31 in a snap-fit manner, the third electrode 3321 and the third conductive sheet 3323 are integrally formed, the fourth electrode 3322 and the fourth conductive sheet 3324 are integrally formed, and the first movable contact 3325 and the second movable contact 3326 are respectively and fixedly connected to one end of the third conductive sheet 3323 and one end of the fourth conductive sheet 3324.
As an improvement of the power-off protection control switch for the toaster of the present invention, the third conductive sheet 3323 and the fourth conductive sheet 3324 both have elasticity, the bottom of the rotating block assembly 32 is provided with the abutting driving portion 326, and the third conductive sheet 3323 and the fourth conductive sheet 3324 are deformed, bent downward or upward under the abutting driving of the abutting driving portion 326 to realize the contact and conduction between the movable contact and the fixed contact.
As an improvement of the power-off protection control switch of the toaster of the present invention, two wires are fixedly extended from the top of the electromagnet group 331, and the two wires pass through two slots 3311 on the electromagnet group 331 to connect to the clock control circuit.
As an improvement of the power-off protection control switch of the toaster, the top of the starting pressing handle 1 is provided with a hook hole 13, and the hook hole 13 is connected with a handle of the toaster in a hook mode.
Further, when the starting pressing handle 1 moves from top to bottom by an external force of pressing down the handle of the toaster, the driving part 11 on the starting pressing handle 1 pushes the rotating block assembly 32 to deflect in the counterclockwise direction, so that the rotating block assembly 32 drives the movable contact set 332 to deform downwards to make the fixed contact and the movable contact be in contact conduction, thereby realizing the circuit electrification of a control switch to supply power to the clock control circuit, and simultaneously the clock control circuit energizes the electromagnet set 331 to generate magnetic force to attract the armature plate 321, thereby locking the pressing driving of the rotating block assembly 32 on the movable contact set 332 to keep the fixed contact and the movable contact stably conducted;
when the clock control circuit stops providing the driving power supply for the electromagnet group 331, the magnetic force between the movable contact set 332 and the electromagnet group 331 disappears, the rotating block assembly 32 is deflected clockwise under the acting force of the elastic resetting piece 322 to be separated from the electromagnet group 331, the movable contact is disconnected from the fixed contact, so that the automatic power off of the toaster is realized, and meanwhile, the rotating block assembly 32 releases the limitation on the starting pressure handle 1.
Referring to fig. 5, a schematic diagram of a control circuit of a power-off protection control switch for a toaster according to the present invention is shown, the control switch has a first electrode end 3331 and a second electrode end 3332, the first electrode end 3331 is connected to a first fixed contact 3335, the second electrode end 3332 is connected to a second fixed contact 3336, the first fixed contact 3335 is connected to a first movable contact 3325, the second fixed contact 3336 is connected to a second movable contact 3326, the first movable contact 3325 is connected to a third electrode end 3321, the second movable contact 3326 is connected to a fourth electrode end 3322, the fourth electrode end 3322 is connected to one end of an inductor L1 of the toaster, the inductor L1, the inductor L2, the inductor L3 and the inductor L4 are sequentially connected in series, one end of the inductor L4 is connected to the third electrode end 3321, the third electrode end 3321 is grounded, the other end of the inductor L4 is connected to one end of a clock control circuit, the other end of the clock control circuit is connected to an electromagnet group 331, and the other end of the electromagnet group 331 is connected to the first movable contact 3325 and the second movable contact 3326.
The invention mainly aims at the automatic power-off control of the toaster. Compared with the prior art, when the starting pressing handle 1 moves from top to bottom under the external force of the handle of the toaster, the driving part 11 on the starting pressing handle 1 pushes the rotating block assembly 32 to deflect in the anticlockwise direction, so that the bottom of the rotating block assembly 32 drives the movable contact set 332 to bend downwards or downwards, and the fixed contact and the movable contact are in contact conduction or disconnection, and the circuit of the control switch is electrified or disconnected. When the circuit is electrified, the clock control circuit is powered to electrify the electromagnet group 331, the electromagnet group 331 generates magnetic force to attract the armature sheet 321, and therefore the rotating block assembly 32 is locked to push and drive the movable contact set 332 to keep the stable conduction of the fixed contact and the movable contact. When the clock control circuit stops providing the driving power to the electromagnet group 331, the rotating block assembly 32 deflects clockwise under the driving of the elastic reset piece 322 to press the movable contact to be disconnected with the fixed contact, so as to realize the automatic power-off of the toaster. The automatic safe power-off control is realized through the simple structure combination, the cost of a control switch can be reduced, particularly, the assembly cost of the toaster is greatly reduced in practical application, the iterative upgrade of the existing toaster control switch is realized, and therefore, the remarkable economic value is created. The connection relation of cables in the toaster can be simplified, the assembly efficiency of the toaster can be improved, the production cost of the whole toaster is reduced, and the market competitiveness is improved, so that the toaster has great significance.
In addition, the two states of the control switch in the prior art are controlled by the structural member of the toaster, for example, the on state of the control switch must be pushed by the structural member, and the off state of the control switch must be released by the structural member. After the fixed contact and the movable contact of the control switch are in contact conduction, the driving part 11 does not press the driving arc abutting part 323 any more to restrict the conduction state of the control switch, and the limiting bending part 322 continues to hook the limiting part 12 to control the reset rising of the starting pressing handle 1, so that the limiting bending part 322 can reset and release the limitation on the limiting part 12 under the action of the spring when the clock control circuit stops providing the driving power supply for the electromagnet group 331, and the problems that the starting pressing handle cannot be released after the toaster baking operation reaches the set baking time due to food blockage or other faults, the control switch cannot be automatically powered off, and the control switch cannot be automatically powered off to cause potential safety hazards such as fire disasters and the like are avoided.
The above-mentioned embodiments only express one of the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a toaster outage protection control switch, presses handle, lid shell and base subassembly including the start, the lid shell with the base subassembly passes through the buckle and connects, the start is pressed the handle and can be inserted in the lid shell, its characterized in that: a driving part is arranged on one side of the lower part of the starting pressing handle, a base shell, a rotating block component and an electrical component are arranged in the base component, and the rotating block component is pivoted with the base shell and is pressed and driven by the starting pressing handle; the rotating block assembly is internally clamped with armature sheets, the electrical assembly comprises an electromagnet group, a movable contact set and a fixed contact set, the movable contact set and the fixed contact set are both connected with the base shell in a buckling manner, and the electromagnet group is abutted between the base shell and the cover shell;
under the driving of the driving part, the rotating block assembly deflects in the anticlockwise direction to press the movable contact set, so that at least one movable contact of the rotating block assembly is in contact conduction with at least one fixed contact of the fixed contact set and then supplies power to a clock control circuit of the toaster, the clock control circuit supplies power to the electromagnet set, the electromagnet set is electrified to generate magnetic force to attract the armature sheet so as to lock the contact conduction of the movable contact and the fixed contact; when the clock control circuit stops providing a driving power supply for the electromagnet group, the rotating block assembly deflects clockwise under the driving of the elastic reset piece and abuts against the movable contact group to enable the movable contact to be disconnected from the fixed contact, so that the automatic power-off of the toaster is realized.
2. The toaster power-off protection control switch according to claim 1, wherein a limiting bending portion is disposed at a top of the rotary block assembly, an arc abutting portion is disposed at an outer side of the limiting bending portion, the rotary block assembly is configured to deflect counterclockwise by a low voltage of the driving portion to the arc abutting portion, bosses are disposed at two side ends of the rotary block assembly, and the rotary block assembly is pivotally connected to the base housing by the bosses.
3. The toaster power-off protection control switch according to claim 2, wherein a limiting portion is formed on the other side of the lower portion of the starting pressing handle by stamping and bending, the bending angle of the limiting portion is configured to match with the bending angle of the limiting bending portion, the starting pressing handle achieves limiting through the hooking of the limiting bending portion and the limiting portion, and a certain gap is formed between the driving portion and the arc abutting portion.
4. The toaster power-off protection control switch according to claim 1, wherein the elastic return member is a spring, the bottom of the rotating block assembly is provided with a pressing portion, the base shell is recessed to form a cavity portion, one end of the spring abuts against the cavity portion, and the other end of the spring is inserted into the pressing portion to abut against the cavity portion.
5. The toaster power-off protection control switch according to claim 1, wherein the fixed contact comprises a first electrode end, a second electrode end, a first conductive sheet and a second conductive sheet, wherein the fixed contact comprises a first fixed contact and a second fixed contact, the first electrode end and the second electrode end extend out and are clamped at one end of the base shell, the first electrode end is integrally formed with the first conductive sheet, the second electrode end is integrally formed with the second conductive sheet, and the first fixed contact and the second fixed contact are respectively fixedly connected to one ends of the first conductive sheet and the second conductive sheet.
6. The toaster power-off protection control switch as claimed in claim 1, wherein said movable contact set comprises a third electrode terminal, a fourth electrode terminal, a third conductive plate and a fourth conductive plate, said movable contact comprises a first movable contact and a second movable contact, said third electrode terminal and said fourth electrode terminal extend out and are fastened to another end of said base housing, said third electrode terminal is integrally formed with said third conductive plate, said fourth electrode terminal is integrally formed with said fourth conductive plate, said first movable contact and said second movable contact are fixedly connected to one end of said third conductive plate and one end of said fourth conductive plate, respectively.
7. The toaster power-off protection control switch as claimed in claim 5, wherein said third and fourth conductive plates are both elastic, and said bottom of said rotating block assembly is provided with an abutting driving portion, and said third and fourth conductive plates are deformed, bent downward or upward under the urging of said abutting driving portion to realize the contact and conduction between said movable contact and said fixed contact.
8. The toaster power-off protection control switch as claimed in claim 1, wherein two wires are fixedly extended from the top of said electromagnet group, and said two wires are connected to said clock control circuit through two slots on said electromagnet group.
9. The toaster power-off protection control switch according to claim 1, wherein a hook hole is formed at the top of the starting pressing handle, and the hook hole is connected with a handle of the toaster in a hook manner.
10. The toaster power-off protection control switch according to any one of claims 1-9, wherein:
when the starting pressing handle moves downwards from top to bottom under the external force of the handle of the toaster, the driving part on the starting pressing handle pushes the rotating block component to deflect in the anticlockwise direction, so that the rotating block component drives the movable contact set to deform downwards to enable the fixed contact and the movable contact to be in contact conduction, the circuit of the control switch is electrified to supply power to the clock control circuit, meanwhile, the clock control circuit is electrified to the electromagnet set to generate magnetic force to attract the armature sheet, and the rotating block component is locked to press and drive the movable contact set to keep the fixed contact and the movable contact in stable conduction;
when the clock control circuit stops providing a driving power supply for the electromagnet group, the magnetic force between the movable contact set and the electromagnet group disappears, the rotating block assembly is deflected clockwise under the acting force of the elastic reset piece to be separated from the electromagnet group, the movable contact is disconnected from the fixed contact, so that the automatic power-off of the toaster is realized, and meanwhile, the rotating block assembly releases the limitation on the starting pressure handle.
CN202210394055.XA 2022-01-20 2022-04-14 Power-off protection control switch of toaster Pending CN115642042A (en)

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CN202210064173 2022-01-20
CN2022100641734 2022-01-20

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CN115642042A true CN115642042A (en) 2023-01-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117238700A (en) * 2023-09-18 2023-12-15 佛山市顺德区源峰电子有限公司 Integrated modularized rotary switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117238700A (en) * 2023-09-18 2023-12-15 佛山市顺德区源峰电子有限公司 Integrated modularized rotary switch
CN117238700B (en) * 2023-09-18 2024-04-02 佛山市顺德区源峰电子有限公司 Integrated modularized rotary switch

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