WO2022041199A1

WO2022041199A1 - Self-recovery integrated forced power-off toaster switch

Info

Publication number: WO2022041199A1
Application number: PCT/CN2020/112485
Authority: WO
Inventors: 李晓东; 李卫东
Original assignee: 东莞市凝锐开关有限公司
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-03-03

Abstract

A self-recovery integrated forced power-off toaster switch (100), comprising an operating mechanism (20) and a switch body (30). The operating mechanism (20) comprises a lifting seat (21) that is slidably connected to a toaster rack body, a fixed handle (212) that is connected to the lifting seat (21), an emergency button (23) that is accommodated in the fixed handle (212), and an adjustment component that is accommodated in the lifting seat (21). The lifting seat (21) is driven by a reset traction piece to reset. The switch body (30) comprises a main on-off component (40), an emergency on-off component (50), and a locking component (60). The main on-off component (40) and the emergency on-off component (50) are in series connection in a heating loop. When the lifting seat (21) is driven by the fixed handle (212) to approach the switch body (30), the lifting seat (21) presses against the main on-off component (40), and the adjustment component presses against the emergency on-off component (50) so that the main on-off component (40) and the emergency on-off component (50) are connected. The locking component (60) is used to maintain the position of the operating mechanism (20) relative to the switch body (30). The emergency button (23) is used to, by using the adjustment component, release the pressing on the emergency on-off component (50). Thus, the cable connection relationship in the toaster can be simplified and the assembly efficiency of the toaster can be improved.

Description

A self-recovery integrated forced power-off toaster switch

technical field

The invention relates to the technical field of electrical switches, in particular to a self-recovery integrated forced power-off toaster switch.

Background technique

Toaster, English name Toaster, my country is called automatic bread toaster, bread toaster, it is an electric cooker specially used to re-bake sliced bread. With the accelerated pace of life, more and more people rely on this small electrical appliance, which can not only bake the bread slices into brown, but also make the bread stronger and taste better, and increase appetite. The toaster has the advantages of small size, convenient use and power saving.

The existing toaster is generally provided with an operating handle adjusted by pressing down on one side. When the operating handle is pressed down, the normally open contact of the internal switch is turned on, and the toaster starts to heat, which is controlled by an internal delay. , After the heating is completed, the operating handle is automatically released, and the normally open contact is disconnected. Since the operating handle moves synchronously with the lifting rack in the toaster, when the lifting rack in the toaster is blocked by the food and the operating handle cannot be released, the toaster will continue to heat. In order to avoid unexpected situations and meet the requirements of safety regulations, the existing toasters are generally additionally installed with emergency switches to force the power off of the toasters. However, installing multiple switches in the toasters will lead to an increase in toasters. The connection of the furnace cables and the assembly steps of the toaster are cumbersome.

SUMMARY OF THE INVENTION

According to various embodiments of the present application, a self-recovery integrated forced power-off toaster switch is provided.

A self-recovery integrated forced power-off toaster switch is applied to a toaster, the toaster has a frame body and a heating circuit with heating parts, the frame body is provided with a sliding rod and a reset traction member, so the The self-recovery integrated forced power-off toaster switch includes:

an operating mechanism, the operating mechanism includes a lift seat slidably connected to the sliding rod, a fixed handle connected to the lift seat, an emergency button accommodated in the fixed handle, and an adjustment assembly accommodated in the lift seat; The lifting seat is driven and reset by the reset traction member;

a switch main body, the switch main body includes a main on-off assembly, an emergency on-off assembly, and a locking assembly; the main on-off assembly and the emergency on-off assembly are connected in series in the heating circuit; through the fixing handle When the lifting seat is driven to move closer to the switch body, the lifting seat presses the main on-off assembly, and the adjustment assembly presses the emergency on-off assembly, so that the main on-off assembly and the emergency on-off assembly are pressed. The breaking assembly is connected; the locking assembly is used to maintain the position of the operating mechanism relative to the switch body; the emergency button is used to release the pressing of the emergency on-off assembly through the adjustment assembly.

The beneficial effect of the self-recovery integrated forced power-off toaster switch of the present invention: the main on-off component and the emergency on-off component are connected in series in the heating circuit, when the user presses the operating mechanism to the switch main body, the lifting seat Push the main on-off component and the adjustment component to the emergency on-off component, so that the main on-off component and the emergency on-off component are connected internally, and the circuit where the heating part of the toaster is located forms a passage, and the toaster starts to be connected. The food is heated, and the locking assembly maintains the positional relationship of the operating mechanism relative to the switch body during normal heating. After completing the heating of the food, the locking assembly releases the locking of the operating mechanism, and then the reset traction member drives the lifting seat to move away from the main body of the switch, so that the main on-off assembly and the emergency on-off assembly are released to the disconnected state, and the toaster is stopped. of heating. When the operating mechanism is blocked and cannot move and reset away from the main body of the switch, by operating the emergency button, the abutment between the adjustment component and the emergency on-off component is released, and the emergency on-off component is released and internally disconnected, cutting off the heating of the toaster. component current. Since the emergency on-off component is integrated in the main body of the switch, the cable connection relationship in the toaster can be simplified, and the assembly efficiency of the toaster can be improved at the same time.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present invention will become apparent from the description, drawings and claims.

Description of drawings

In order to better describe and illustrate the embodiments and/or examples of the inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the disclosed inventions, the presently described embodiments and/or examples, and the best mode presently understood of these inventions.

1 is a perspective view of a self-recovery integrated forced power-off toaster switch according to an embodiment of the present invention, wherein the operating mechanism is in a state of pressing the switch body;

Fig. 2 is a three-dimensional schematic diagram of the self-recovery integrated forced power-off toaster switch shown in Fig. 1, wherein the operating mechanism is in a reset state;

FIG. 3 is an exploded schematic view of the switch main body in FIG. 1 , wherein the housing is divided into two parts;

FIG. 4 is an exploded schematic view of the switch body in FIG. 1 at another angle, wherein the housing is divided into two parts;

FIG. 5 is a partial exploded schematic view of the switch body shown in FIG. 4 , wherein the casing has been hidden;

FIG. 6 is a partial exploded schematic view of the switch body shown in FIG. 4 at another angle, wherein the casing has been hidden;

FIG. 7 is an exploded schematic view of the operating mechanism in FIG. 2 at another angle;

FIG. 8 is a perspective view of a self-recovery integrated forced power-off toaster switch according to another embodiment of the present invention, wherein the operating mechanism is in a reset state.

The corresponding relationship between each component and the label in the accompanying drawing is:

100. Self-recovery integrated forced power-off toaster switch; 20. Operating mechanism; 21. Lifting seat; 211. Fixed pushing part; 212. Fixed handle; 213. Chute; 214. Hook part; 222, movable pressing part; 223, positioning block; 224, first elastic part; 225, sliding part; 227, slider; 226, second elastic part; 23, emergency button; 30, switch body ; 40, the main on-off component; 41, the first side foot conductive sheet; 42, the middle foot conductive sheet; 421, the arc groove; 43, the first movable contact piece; 431, the V-shaped part; Foot conductor; 46, the fourth leg conductor; 47, the third movable contact piece; 50, the emergency on-off component; 51, the second leg conductor; 52, the second movable contact piece; 53, the second card Granule; 60, locking assembly; 61, electromagnetic part; 62, armature part; 621, hook part; 63, fourth elastic part; 70, housing; 71, orientation pin; 72, third elastic part; 73, deflection 80, main button; 81, first side extension; 82, first abutting elastic member; 83, first side hook; 90, auxiliary button; 91, second side extension; 92, second abutment Connect the elastic piece; 93, the second side hook.

detailed description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the present disclosure is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, 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 terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Please refer to FIGS. 1 to 8 , it is an embodiment of the self-recovery integrated forced power-off toaster switch 100 , which is applied to a toaster, and the toaster has a frame and a heating circuit with heating components. The frame body is provided with a sliding bar and a reset traction member, and the switch is used to turn on the heating circuit in the toaster, and at the same time, it can cut off the heating circuit in the toaster in an accidental situation. The self-recovery integrated forced power-off toaster switch 100 includes: an operating mechanism 20 and a switch main body 30; the operating mechanism 20 includes a lifting seat 21 slidably connected to the toaster frame, a fixed handle 212 connected to the lifting seat 21, a container The emergency button 23 placed in the fixed handle 212 and the adjustment assembly accommodated in the lift seat 21; the lift seat 21 is driven to reset by the reset traction member; the switch body 30 includes a main on-off assembly 40, an emergency on-off assembly 50, and a lock Assembly 60; the main on-off assembly 40 and the emergency on-off assembly 50 are connected in series in the heating circuit; when the lifting seat 21 is driven by the fixed handle 212 to move closer to the switch main body 30, the lifting seat 21 presses the main on-off assembly 40 to adjust the assembly Press the emergency on-off assembly 50 to connect the main on-off assembly 40 and the emergency on-off assembly 50; the locking assembly 60 is used to maintain the position of the operating mechanism 20 relative to the switch main body 30; the emergency button 23 is used to release the emergency switch through the adjustment assembly. Press on and off the assembly 50 .

The main on-off assembly 40 and the emergency on-off assembly 50 are connected in series in the heating circuit. When the user presses the operating mechanism 20 toward the switch body 30, the lift seat 21 is connected to the main on-off assembly 40, and the adjustment assembly is connected to the emergency on-off assembly. 50 pushes the main on-off assembly 40 and the emergency on-off assembly 50 to connect inside, the circuit where the heating part of the toaster is located forms a passageway, and starts to heat the food in the toaster, and the locking assembly 60 is located in the toaster. The positional relationship of the operating mechanism 20 relative to the switch body 30 is maintained during normal heating. After the food is heated, the locking assembly 60 releases the locking of the operating mechanism 20, and then the reset traction member drives the lifting base 21 to move away from the switch main body 30, so that the main on-off assembly 40 and the emergency on-off assembly 50 are released to disconnect state, stop the heating of the toaster. When the operating mechanism 20 is blocked and cannot move away from the switch main body 30 for reset, by operating the emergency button 23, the abutment between the adjustment component and the emergency on-off component 50 is released, and the emergency on-off component 50 is released and internally disconnected, cutting off The electric current of the heating parts of the toaster. Since the emergency on-off assembly 50 is integrated in the switch main body 30, the cable connection relationship in the toaster can be simplified, and the assembly efficiency of the toaster can be improved at the same time.

Specifically, the lift seat 21 is movably sleeved with a sliding rod, and moves under the guiding action of the sliding rod. After the locking assembly 60 releases the locking of the lifting seat 21, the reset traction member moves the lifting seat 21 away from the switch main body 30 to release the pressing on the main on-off assembly 40 and the emergency on-off assembly 50 and cut off the heating element the current. Specifically, the reset traction member is a tension spring.

Further, since the emergency on-off assembly 50 is integrated in the switch main body 30, and the emergency button 23 is provided on the lift seat 21, when a conventional toaster without forced power-off needs to be added with a forced power-off function, it is only necessary to replace the upper switch. The main body 30 and the operating mechanism 20 are sufficient, and there is no need to make too many adjustments to the circuit layout or the casing of the toaster.

Please refer to FIG. 2 and FIG. 3 , in one embodiment, the switch main body 30 further includes a casing 70 , a main button 80 movably passing through the casing 70 , and a sub-button 90 movably passing through the casing 70 ; The component 40 and the emergency on-off component 50 are accommodated in the housing 70 ; the lift seat 21 presses the main on-off component 40 through the main button 80 ; the adjustment component presses the emergency on-off component 50 through the auxiliary button 90 .

By accommodating the main on-off assembly 40 and the emergency on-off assembly 50 in the housing 70 made of insulating material, leakage of the metal parts of the main on-off assembly 40 or the emergency on-off assembly 50 can be effectively avoided. The operating mechanism 20 acts on the main button 80 or the sub-button 90 made of insulating material exposed to the housing 70, so that it does not need to be in direct contact with the main on-off assembly 40 or the emergency on-off assembly 50, thereby improving electrical safety.

Further, in order to improve the structural stability of the switch body 30, the locking assembly 60 is accommodated in the housing 70; in other embodiments, the main on-off assembly 40 and the emergency on-off assembly 50 may also be accommodated in multiple in the enclosed space formed by the furnace shell.

Referring to FIG. 2 , in one of the embodiments, the lifting base 21 is provided with a fixed pushing portion 211 , and the fixed pushing portion 211 is used to press the main button 80 ; the adjustment assembly includes a dial pivotally connected to the lifting base 21 . 221 and the first elastic member 224 connected to the dialing member 221. The first elastic member 224 maintains a predetermined angle of the dialing member 221 relative to the lifting seat 21 through the emergency button 23; the emergency button 23 is connected to the dialing member 221; the dialing member 221 is set There is a movable pressing portion 222 for pressing the sub button 90 .

When the lift base 21 moves close to the switch main body 30 , since the first elastic member 224 keeps the angle of the dial 221 relative to the lift base 21 fixed, the fixed pressing portion 211 and the movable pressing portion 222 are respectively opposite to the main button 80 and the auxiliary button. 90 produces a pressing action, and switches the main on-off assembly 40 and the emergency on-off assembly 50 to the on state through mechanical action. When the lift seat 21 cannot move due to the obstruction of food, the movement of the emergency button 23 drives the toggle member 221 to deflect relative to the lift seat 21 . After the angle of the toggle member 221 is adjusted, the movable push portion 222 leaves the auxiliary button 90 . , release the pressing on the emergency on-off assembly 50, restore the emergency on-off assembly 50 to the off state, and cut off the circuit of the heating component.

Referring to FIG. 2 , in one embodiment, the emergency button 23 is located on the side of the fixed handle 212 close to the switch body 30 ; the first elastic member 224 abuts between the fixed handle 212 and the emergency button 23 . By pushing the fixing handle 212 toward the switch body 30 , the lift seat 21 and the adjusting assembly can be driven to move; since the emergency button 23 is located on the side of the fixing handle 212 close to the switch body 30 , the emergency button can be prevented from being triggered by mistake when the fixing handle 212 is operated. twenty three.

Because the first elastic member 224 can automatically reset the dialing member 221 to a predetermined angle, at the same time, the reset of the dialing member 221 drives the reset of the emergency button 23 . When the stuck food in the toaster is removed, the reset traction member drives the lift seat 21 to reset to a position away from the switch main body 30 , and the emergency button 23 and the turning member 221 are reset by the action of the first elastic member 224 . When the heating circuit needs to be turned on next time, it is only necessary to push the fixed handle 212, and no other adjustment is required to the emergency button 23 or the adjustment assembly, thereby simplifying the use and operation of the switch.

Specifically, the first elastic member 224 is a compression spring and is accommodated in the fixed handle 212 and the emergency button 23 ; in order to further reduce false triggering of the emergency button 23 , the emergency button 23 is partially accommodated in the fixed handle 212 . The dialing member 221 is provided with a positioning block 223 , and the first elastic member 224 pushes the dialing member 221 to abut against the positioning block 223 and the lifting base 21 , so as to keep the angle between the dialing member 221 and the lifting base 21 stable.

Referring to FIG. 8 , in one of the embodiments, the lifting base 21 is provided with a fixed pressing portion 211 , and the fixed pushing portion 211 is used to press the main button 80 ; the adjustment assembly includes a sliding member slidably connected to the lifting base 21 225 and a second elastic member 226 abutting against the sliding member 225. The second elastic member 226 is used to maintain the sliding member 225 in a predetermined position relative to the lift seat 21; the emergency button 23 abuts the sliding member 225; the sliding member 225 is provided There is a movable pressing portion 222 for pressing the sub button 90 .

When the lift base 21 moves close to the switch main body 30 , since the second elastic member 226 keeps the sliding member 225 at a predetermined position relative to the lift base 21 , the fixed pressing portion 211 and the movable pressing portion 222 are respectively opposed to the main button 80 and the auxiliary button 90 . A pressing action is generated, and the main on-off assembly 40 and the emergency on-off assembly 50 are switched to the on state through mechanical action. When the lifting seat 21 cannot move due to the blocking of food, the movement of the emergency button 23 drives the sliding member 225 to move relative to the lifting seat 21 and the auxiliary button 90. When the position of the sliding member 225 changes, the movable pressing portion 222 moves. Leave the auxiliary button 90, release the pressing on the emergency on-off assembly 50, restore the emergency on-off assembly 50 to the off state, and cut off the circuit of the heating component.

Because the second elastic member 226 can automatically reset the sliding member 225 to a predetermined position, at the same time, the reset of the sliding member 225 drives the reset of the emergency button 23 . After the food stuck in the toaster is removed, the reset traction member drives the lifting base 21 to reset to a position away from the switch main body 30 , and the emergency button 23 and the sliding member 225 are reset by the action of the second elastic member 226 . When the heating circuit needs to be turned on next time, it is only necessary to push the fixed handle 212, and no other adjustment is required to the emergency button 23 or the adjustment assembly, thereby simplifying the use and operation of the switch.

Referring to FIG. 8 , in one embodiment, one of the lifting base 21 and the sliding member 225 has a sliding groove 213 , and the other has a sliding block 227 ; the sliding block 227 is movably accommodated in the sliding groove 213 ; the second The elastic member 226 abuts between the lifting base 21 and the sliding member 225 . Since the emergency button 23 moves with the sliding member 225 , and the emergency button 23 movably passes through the fixed handle 212 , at least one side of the emergency button 23 is covered by the fixed handle 212 , thereby reducing the error caused to the emergency button 23 when the fixed handle 212 is operated. opportunity to trigger. The extending direction of the chute 213 is perpendicular to the moving direction of the lifting base 21 , so as to minimize the resistance received when the emergency button 23 or the sliding member 225 is pushed.

The lifting base 21 is provided with a fixed pressing part 211, which is used to press the main button 80; the adjustment assembly is provided with a movable pressing part 222, and the movable pressing part 222 is used to press the auxiliary button 90; Before the operating mechanism 20 contacts the switch body 30 , the distance between the fixed pressing portion 211 and the main button 80 is greater than the distance between the movable pressing portion 222 and the sub-button 90 .

When it is necessary to turn on the circuit where the heating component is located, with the movement of the lift seat 21 close to the switch main body 30, the time when the movable pressing part 222 contacts the auxiliary button 90 is earlier than the time when the fixed pressing part 211 contacts the main button 80; when it is necessary to cut off the heating When the component is in the circuit, with the movement of the lift seat 21 away from the switch main body 30, the time when the movable pressing part 222 leaves the auxiliary button 90 is later than the time when the fixed pressing part 211 leaves the main button 80, so that the emergency on-off assembly 50 can be avoided directly. It is used to cut off the current and prevent arcing in the emergency on-off assembly 50, so as to maintain the good breaking capacity of the emergency on-off assembly 50, so as to reliably cut off the current of the heating component in an emergency.

Please refer to FIG. 5 and FIG. 6 , in one embodiment, the main on-off assembly 40 includes a first leg conductive sheet 41 connected to the housing 70 , a middle leg conductive sheet 42 connected to the housing 70 , and a conductive sheet 42 movably arranged on the housing 70 . The first movable contact piece 43 in the body 70; the first movable contact piece 43 switches between the electrical connection and electrical isolation between the first side foot conductive piece 41 and the middle foot conductive piece 42 through movement, and the movement of the first movable contact piece 43 Driven by the main button 80; the emergency on-off assembly 50 includes a second leg conductive piece 51 connected to the housing 70 and a second movable contact piece 52 movably arranged in the housing 70; the second movable contact piece 52 makes the second The side leg conductive sheet 51 and the middle leg conductive sheet 42 are switched between electrical connection and electrical isolation, and the movement of the second movable contact sheet 52 is driven by the auxiliary button 90 .

When it is necessary to turn on the circuit where the heating component is located, the first leg conductive sheet 41 , the first movable contact sheet 43 , the middle leg conductive sheet 42 , the second movable contact sheet 52 and the second leg conductive sheet 51 are in contact with each other and connected in series. In the loop between the heating element and the power source, pass current through the heating element. When it is necessary to cut off the circuit where the heating element is located, the lift seat 21 moves away from the switch main body 30, and the main button 80 drives the first movable contact piece 43 away from the first side leg conductive sheet 41 or the middle leg conductive sheet 42, so that at the same time or later , the secondary button 90 drives the second movable contact piece 52 away from the second side leg conductive sheet 51 or the middle leg conductive sheet 42 to generate electrical isolation.

Specifically, the first leg conductive sheet 41 , the middle leg conductive sheet 42 , the first movable contact sheet 43 , the second leg conductive sheet 51 and the second movable contact sheet 52 are made of metal or alloy, preferably red copper.

Please refer to FIG. 5 and FIG. 6 , in one of the embodiments, the contact between the first movable contact piece 43 and the first leg conductive sheet 41 , or between the first movable contact piece 43 and the middle leg conductive sheet 42 is through contact Point-to-point connection; the second movable contact piece 52 and the middle-foot conductive piece 42 or the second movable contact piece 52 and the second side-foot conductive piece 51 are connected through contacts. Thus, the electrical conductivity of the main on-off assembly 40 and the emergency on-off assembly 50 is improved and the oxidation speed is reduced.

Referring to FIGS. 3 and 4 , in one embodiment, the first movable contact piece 43 and the second movable contact piece 52 keep abutting with the middle foot conductive piece 42 during the movement process. Therefore, the connection or disconnection of the main on-off assembly 40 is determined by the distance between the first leg conductive piece 41 and the first movable contact piece 43, and the connection or disconnection of the emergency on-off assembly 50 is determined by the second leg conductive plate 51. The gap with the second movable contact piece 52 is determined, so that the structure of the switch body 30 can be simplified.

Please refer to FIG. 5 and FIG. 6 , in one embodiment, the main button 80 has a first side extension 81 , and the first side extension 81 has an inclined surface; The sheet 43 abuts against the first abutting elastic member 82 of the first lateral extension 81; the inclined surface on the first lateral extension 81 is used to guide the first movable contact sheet 43 to abut against the middle foot conductive sheet 42; The auxiliary button 90 has a second side extension portion 91 , and the second side extension portion 91 has an inclined surface; the switch body 30 further includes a second abutment for making the second movable contact piece 52 abut against the second side extension portion 91 . The elastic member 92 ; the inclined surface on the second side extension portion 91 is used to guide the second movable contact piece 52 to abut against the middle foot conductive piece 42 .

By adjusting the direction of the inclined surface, the side close to the middle-foot conductive sheet 42 is lowered, so that the first side extension portion 81 and the second side extension portion 91 are opposite to the first movable contact piece 43 and the second movable contact piece 52 respectively. The angle plays a guiding role. Before being pressed by the operating mechanism 20, the first movable contact piece 43 and the second movable contact piece 52 can abut with the middle foot conductive piece 42 respectively, thereby simplifying the connection between the first movable contact piece 43 and the second movable contact piece 52. Installation of the second movable contact piece 52 . In addition, since the first movable contact piece 43 and the second movable contact piece 52 are respectively connected with the middle foot conductive piece 42 separately, and can keep in contact with the middle foot conductive piece 42 at the same time, there is no need to consider the need to ensure the elastic range of motion, which can be increased. The thickness of the first movable contact piece 43 and the second movable contact piece 52 can be, for example, a metal sheet with a thickness of 0.8 mm or more, so as to increase the maximum allowable passing current of the main on-off component 40 or the emergency on-off component 50 .

Referring to FIG. 5 , in one of the embodiments, the side of the first movable contact piece 43 facing away from the first side extension portion 81 is extended with a first clip, and one end of the first abutting elastic member 82 is connected to the first clip. The particle abuts; the side of the second movable contact piece 52 facing away from the second side extension portion 91 extends with a second clip 53 , and one end of the second abutting elastic member 92 abuts against the second clip 53 . The first abutting elastic member 82 is a compression spring, and two ends abut the main button 80 and the first clip respectively, so that the first movable contact piece 43 can actively slide along the slope toward the midfoot conductive member. The second abutting elastic member 92 is a compression spring, and both ends abut against the auxiliary button 90 and the second clip 53 respectively, so that the second movable contact piece 52 can actively slide along the slope toward the midfoot conductive member.

Please refer to FIG. 5 and FIG. 6 , in one embodiment, the main button 80 further has a first side hook 83 connected to the first side extension 81 , and the first movable contact piece 43 is accommodated in the first side hook 83 and the main body of the main button 80; the auxiliary button 90 also has a second side hook 93 connected to the second side extension 91, and the second movable contact piece 52 is accommodated between the second side hook 93 and the auxiliary button 90. between subjects. Therefore, it is possible to prevent the first movable contact piece 43 from being released from the main button 80 or the second movable contact piece 52 from being released from the auxiliary button 90 .

Please refer to FIG. 5 , in one of the embodiments, the middle foot conductive piece 42 is provided with an arc groove 421 ; the first movable contact piece 43 or the second movable contact piece 52 has a V-shaped portion 431 , and the V-shaped portion 431 The convex side of the housing 70 is fitted to the surface of the arc groove 421 ; the convex rib feature of the housing 70 extends into the concave side of the V-shaped portion 431 . Through the contact and cooperation between the arc groove 421 and the V-shaped portion 431, the first movable contact piece 43 or the second movable contact piece 52 can maintain sufficient contact with the middle foot conductive piece 42 during the movement process, thereby reducing the resistance; The convex rib feature of the body 70 extending to the concave side of the V-shaped portion 431 can limit the movable range of the first movable contact piece 43 or the second movable contact piece 52, and can facilitate the assembly of the switch body 30, avoiding the need to remove the first movable contact piece 43 or the second movable contact piece 52. The movable contact piece 43 or the second movable contact piece 52 is pivotally connected with the conductive member of the middle foot.

Referring to FIG. 6 , in one embodiment, the main on-off assembly 40 includes a third leg conductive member 45 connected to the casing 70 , a fourth leg conductive member 46 connected to the casing 70 , and a conductive member 46 movably disposed on the casing The third movable contact piece 47 in the 70; Driven by the main button 80. One end of the heating element is connected to the phase line of the power supply through the first leg conductive sheet 41 and the second leg conductive sheet 51, and the other end is connected to the zero of the power supply through the third leg conductive member 45 and the fourth leg conductive member 46. This ensures that the heating element can be reliably isolated from the power supply in a power-off state.

Further, the movable ranges of the first moving contact piece 43 , the second moving contact piece 52 and the third moving contact piece 47 are arranged in parallel with each other, so that the first moving contact piece 43 , the second moving contact piece 52 and the third moving contact piece 47 are arranged side by side with each other, so that the volume of the switch body can be reduced.

Referring to FIGS. 3 and 5 , in one embodiment, the switch body 30 further includes a third elastic member 72 , and the third elastic member 72 is used to move the main button 80 or the sub-button 90 along the reset direction of the operating mechanism 20 . After the lift seat 21 and the adjustment assembly release the pressing of the main button 80 or the sub-button 90, the elastic force of the third elastic member 72 pushes the main button 80 or the sub-button 90 in the opposite direction, and drives the first movable contact piece 43 away from the first movable contact piece 43. The leg conductive sheet 41 or the second movable contact sheet 52 is separated from the second leg conductive sheet 51, so that the main on-off component 40 and the emergency on-off component 50 can be restored and disconnected in time.

Referring to FIG. 3 , in one embodiment, an orientation pin 71 extends inside the housing 70 , and the orientation pin 71 passes through the primary button 80 or the secondary button 90 ; the third elastic member 72 is sleeved on the orientation pin 71 . By passing the setting pin 71 on the main button 80 or the auxiliary button 90, the moving direction of the main button 80 or the auxiliary button 90 can be restricted, and dislocation can be avoided.

Referring to FIG. 2 , in one embodiment, the lift seat 21 has a hook portion 214 ; the locking assembly 60 includes an electromagnetic member 61 connected to the housing 70 and an armature member 62 movably connected to the housing 70 ; The armature piece 62 is engaged with the armature piece 62 to lock the position or angle of the armature piece 62 ; Therefore, the position of the armature member 62 can be locked by controlling the magnetic force of the electromagnet 61 . When the position of the armature member 62 is locked, the hook portion 621 and the hook portion 214 abut against each other, preventing the lifting base 21 from being reset to the traction member. Drive the reset, and keep the operation mechanism 20 pressing the main button 80 and the sub-button 90 .

Referring to FIG. 2 , the lateral cross-sections of the hook portion 214 and the hook portion 621 are V-shaped respectively. Therefore, the weight of the hook portion 214 and the hook portion 621 can be reduced, and by adjusting the extension angles of the hook portion 214 and the hook portion 621 , for example, the slope of the hook portion 621 toward the hook portion 214 relative to the moving direction of the hook portion 214 can be reduced. The included angle can reduce the resistance when the hook portion 214 is fastened to the hook portion 621 . Specifically, before the electromagnet 61 generates the magnetic force, when the lift base 21 moves close to the switch body 30 , the hook portion 214 abuts against the hook portion 621 , and then the armature member 62 deflects while the hook portion 621 swings away from the electromagnetic member 61 . After the hook portion 214 is moved in place, the hook portion 621 abuts against the concave side of the hook portion 214 , and the electromagnet 61 generates a magnetic force, and the position or direction of the armature member 62 is locked. produce a lock.

The hook portion 214 is provided with a first abutting surface, the hook portion 621 is provided with a second abutting surface, the first abutting surface and the second abutting surface are parallel or nearly parallel; When the main body 30 is in the position, the first abutting surface is in contact with the second abutting surface; the axial direction of the sliding rod is perpendicular or nearly perpendicular to the first abutting surface or the second abutting surface. When the first abutting surface and the second abutting surface are in abutment, the component force in the axial direction of the sliding rod can be used to reduce the suction force required when the electromagnet 61 locks the lifting seat 21 .

Referring to FIGS. 4 and 5 , in one embodiment, the locking assembly 60 further includes a fourth elastic member 63 ; Activity. The fourth elastic member 63 allows the armature member 62 to actively abut against the electromagnetic member 61 , so as to prevent the armature member 62 from being unable to be attracted and fixed due to the excessive gap between the armature member 62 and the electromagnetic member 61 .

Specifically, a deflection fulcrum 73 extends inside the housing 70 , and the deflection fulcrum 73 is located on the side of the armature piece 62 that faces away from the electromagnet; the fourth elastic piece 63 is a compression spring and both ends abut against the armature piece 62 and the inner wall of the housing 70 respectively. , the contact part of the armature piece 62 and the fourth elastic piece 63 is on one side of the deflection fulcrum 73, and the hook part 621 is on the other side of the deflection fulcrum 73. Under the action of leverage, the fourth elastic piece 63 drives the armature piece 62 to deflect, The hook portion 621 moves in a direction close to the armature piece 62 .

In this embodiment, when the operating mechanism 20 is blocked and cannot move away from the switch main body 30 for reset, by operating the emergency button 23 , the abutment between the adjustment component and the emergency on-off component 50 is released, and the emergency on-off component 50 is released. and internal disconnection to cut off the current to the heating parts of the toaster. Since the emergency on-off assembly 50 is integrated in the switch main body 30, the cable connection relationship in the toaster can be simplified, and the assembly efficiency of the toaster can be improved at the same time.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A self-recovery integrated forced power-off toaster switch is applied to a toaster, the toaster has a frame body and a heating circuit with heating parts, the frame body is provided with a sliding rod and a reset traction member, and the It is characterized in that, the self-recovery integrated forced power-off toaster switch includes:

an operating mechanism, the operating mechanism includes a lift seat slidably connected to the sliding rod, a fixed handle connected to the lift seat, an emergency button accommodated in the fixed handle, and an adjustment assembly accommodated in the lift seat; The lifting seat is driven and reset by the reset traction member;

a switch main body, the switch main body includes a main on-off assembly, an emergency on-off assembly, and a locking assembly; the main on-off assembly and the emergency on-off assembly are connected in series in the heating circuit; through the fixing handle When the lifting seat is driven to move closer to the switch body, the lifting seat presses the main on-off assembly, and the adjustment assembly presses the emergency on-off assembly, so that the main on-off assembly and the emergency on-off assembly are pressed. The breaking assembly is connected; the locking assembly is used to maintain the position of the operating mechanism relative to the switch body; the emergency button is used to release the pressing of the emergency on-off assembly through the adjustment assembly.
The self-recovery integrated forced power-off toaster switch according to claim 1, wherein the switch main body further comprises a casing, a main button movably passing through the casing, and a main button movably passing through the casing The main on-off component and the emergency on-off component are accommodated in the housing; the lift seat presses the main on-off component through the main button; the adjustment component The emergency on-off assembly is pressed through the auxiliary button.
The self-recovery integrated forced power-off toaster switch according to claim 2, wherein the lifting base is provided with a fixed pressing part, and the fixed pressing part is used to press the main button ; the adjustment assembly includes a dial pivotally connected to the lift seat and a first elastic member connected to the dial, and the first elastic member makes the dial relative to the lift via the emergency button The seat maintains a predetermined angle; the emergency button is connected to the dialing member; the dialing member is provided with a movable pressing part for pressing the auxiliary button.
The self-recovery integrated forced power-off toaster switch according to claim 3, wherein the emergency button is located on the side of the fixed handle close to the switch main body; the first elastic member abuts between the fixed handle and the emergency button.
The self-recovery integrated forced power-off toaster switch according to claim 2, wherein the lifting base is provided with a fixed pressing part, and the fixed pressing part is used to press the main button ; the adjustment assembly includes a sliding member slidably connected to the lifting seat and a second elastic member abutting against the sliding member, the second elastic member is used to maintain the sliding member relative to the lifting seat a predetermined position; the emergency button abuts the sliding member; the sliding member is provided with a movable pressing part for pressing the auxiliary button.
The self-recovery integrated type forced power-off toaster switch according to claim 5, wherein one of the lifting base and the sliding member has a sliding groove, and the other has a sliding block; The block is movably accommodated in the chute; the second elastic piece abuts between the lifting seat and the sliding piece; the emergency button movably passes through the fixing handle.
The self-recovery integrated forced power-off toaster switch according to claim 2, wherein the lifting base is provided with a fixed pressing part, and the fixed pressing part is used to press the main button ; The adjustment assembly is provided with a movable pressing part, and the movable pressing part is used to press the auxiliary button; before the operating mechanism is in contact with the switch body, the fixed pressing part and the The distance between the main buttons is greater than the distance between the movable pressing part and the auxiliary buttons.
The self-recovery integrated forcible power-off toaster switch according to claim 2, wherein the main on-off component comprises a conductive sheet connected to the first leg of the casing, and a conductive sheet connected to the casing. The middle foot conductive sheet and the first movable contact piece are movably arranged in the housing; the first movable contact piece makes the first side foot conductive sheet and the middle foot conductive sheet electrically connected and electrically isolated through movement The first movable contact piece is driven by the main button; the emergency on-off component includes a second leg conductive piece connected to the casing and a second conductive sheet movably arranged in the casing A moving contact piece; the second moving contact piece switches between the electrical connection and the electrical isolation of the second side leg conducting piece and the middle foot conducting piece through movement, and the movement of the second moving contact piece is determined by the The auxiliary button is activated.
The self-recovery integrated forced power-off toaster switch according to claim 8, characterized in that, between the first movable contact piece and the first leg conductive piece, or between the first movable contact piece The sheet and the middle foot conductive sheet are connected by contacts; between the second movable contact sheet and the middle foot conductive sheet, or between the second movable contact sheet and the second side foot conductive sheet connected through contacts.
The self-recovery integrated forced power-off toaster switch according to claim 8, wherein the first movable contact piece and the second movable contact piece are in contact with the middle foot conductive piece during the movement process. Stay connected.
The self-recovery integrated forced power-off toaster switch according to claim 10, wherein the main button has a first side extension, and the first side extension has an inclined surface; the switch The main body further includes a first abutting elastic member for making the first movable contact piece abut against the first side extension; the inclined surface on the first side extension is used for the first movable contact The contact piece is guided to be in contact with the middle-foot conductive piece; the auxiliary button has a second side extension part, and the second side extension part has an inclined surface; the switch main body also includes a The movable contact piece is abutted against the second abutting elastic member of the second side extension; the inclined surface on the second side extension is used to guide the second movable contact piece to conduct electricity with the middle foot piece abutting.
The self-recovery integrated forced power-off toaster switch according to claim 11, wherein a side of the first movable contact piece facing away from the first side extension portion is extended with a first card particle, One end of the first abutting elastic member abuts against the first clip; a second clip extends from the side of the second movable contact piece facing away from the second side extension, and the second clip extends One end of the abutting elastic piece abuts against the second clip.
The self-recovery integrated forcible power-off toaster switch according to claim 10, wherein the main button further has a first side hook connected to the first side extension, and the first push button The contact piece is accommodated between the first side hook portion and the main body of the main button; the auxiliary button also has a second side hook portion connected to the second side extension portion, and the second movable contact piece It is accommodated between the second side hook and the main body of the auxiliary button.
The self-recovery integrated forced power-off toaster switch according to claim 10, wherein the middle-foot conductive sheet is provided with an arc groove; the first movable contact piece or the second movable contact piece The contact piece has a V-shaped portion, and the convex side of the V-shaped portion is fitted to the surface of the arc groove; the convex rib feature of the housing extends into the concave side of the V-shaped portion.
The self-recovery integrated forcible power-off toaster switch according to claim 8, wherein the main on-off component comprises a third leg conductive member connected to the casing, and a conductive member connected to the casing. The fourth leg conducting piece and the third movable contact piece are movably arranged in the housing; the third movable contact piece makes the third leg conducting piece and the fourth leg conducting piece electrically connected through the movement. Switching between connection and electrical isolation, the movement of the third movable contact piece is driven by the main button.
The self-recovery integrated type forced power-off toaster switch according to claim 8, wherein the switch main body further comprises a third elastic member, and the third elastic member is used to make the main button or all the The auxiliary button moves along the reset direction of the operating mechanism.
The self-recovery integrated forced power-off toaster switch according to claim 16, wherein a directional pin extends in the housing, and the directional pin passes through the main button or the auxiliary button; The third elastic piece is sleeved on the orientation pin.
The self-recovery integrated forcible power-off toaster switch according to claim 2, wherein the lifting base has a hook portion; the locking assembly includes an electromagnetic component connected to the housing and an active connection The armature piece of the housing; the electromagnetic piece is used for attracting the armature piece to lock the position or angle of the armature piece; the armature piece has a hook portion, the hook portion and the hook portion cooperate to lock the lift seat in a position close to the switch body.
The self-recovery integrated forced power-off toaster switch according to claim 18, wherein the side cross-sections of the hook portion and the hook portion are respectively V-shaped; the hook portion is provided with The first abutting surface, the hook portion is provided with a second abutting surface, the first abutting surface and the second abutting surface are parallel or nearly parallel; When the position of the main body is switched, the first abutting surface is in contact with the second abutting surface; the axial direction of the sliding rod is perpendicular to or close to the first abutting surface or the second abutting surface vertical.
The self-recovery integrated type forced power-off toaster switch according to claim 18, wherein the locking assembly further comprises a fourth elastic member; the fourth elastic member is used to make the armature member The hook portion moves in a direction close to the armature piece.