CN2579128Y

CN2579128Y - Power cut-off security mechanism of oven against locked bracket

Info

Publication number: CN2579128Y
Application number: CN 02248791
Authority: CN
Inventors: 申晓星; 陈华金; 龙友英
Original assignee: Crastal Technology Shenzhen Co Ltd
Current assignee: Crastal Technology Shenzhen Co Ltd
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2003-10-08
Anticipated expiration: 2012-10-18

Abstract

The utility model provides a novel power cut-off security mechanism of an oven support frame with blocking resistance, which not only can be used as a power switch, but also has a function of power cut-off security. The utility model is particularly suitable for ovens used for bread baking, and household electric appliances. The utility model is composed of a slide frame of which the left and the right parts are provided with grooves, and slide sheets of a support frame slide sheet assembly, wherein, the slide sheets of the support frame slide sheet assembly are mutually crossed and can be mutually slid in a slide frame groove. When the support frame is clamped, so long as when an electronic timer is achieved to the set time, coils on the electronic timer lose power. Thus a hanging hook of the slide frame is disengaged from an armature frame to upwards move in the slide sheets of the support frame slide sheet assembly so that the pressure of a switch hanging arm pressing rod is reduced by pressing sheets. One end of the switch hanging arm pressing rod is abutted on a reed of a switch contact. The switch hanging rod pressing rod is upwards lifted after oppressed by elastic force of the reed of the switch contact. Thereby, the reed of the switch contact is restored to switch off the contact and cut off the power supply of the entire machine. Thus the utility model can effectively prevent overheat accident occurrence for ovens. The utility model has the advantages of simple structure, security, etc.

Description

Toaster carriage antiblocking power-off protection mechanism

Technical field

The utility model provides a kind of toaster new bracket antiblocking power-off protection mechanism, is specially adapted to toast the toaster of bread.

Background technology

The electronics toaster of prior art generally is made up of parts such as shell, flap hand, base, electronic timer and movements, and its major function has regularly, resets.Main application is a coke yellow for the baking rusk, and the user can adjust the time as required, and the color that rusk is toasted meets user's hobby.Its course of work is as follows: after the user inserts supply socket with the toaster attaching plug usually, bread is put into the bread groove of toaster, balladeur train and carriage that flap hand connects are held bread, adjust knob and set electronic timer to required stoving time, press flap hand, balladeur train and carriage holder bread and are dropped to trench bottom, this moment, the coil on the electronic timer got electric because of the switch connection power supply, and armature is held, switch keeps connecting always, and flap hand, balladeur train and carriage remain on original position always.Heating wire is started working, baking bread, and after stoving time reached the time that electronic timer sets, the coil losing electricity on the electronic timer, armature got loose, flap hand and balladeur train, carriage hold up the bread normal position of upspringing.But, owing to some defective of all chances and toaster itself causes that toaster balladeur train, carriage are stuck or upspring not in place because of bread and other reason, the time that timer is set reaches, coil losing electricity, armature lose suction, but the sliding pallet frame still can't be upspring and be put in place, causes the toaster mains switch to disconnect, and causes the heating wire in the toaster to be switched on for a long time, toast bread always and burnt, burning, even cause contingency up to bread.

Summary of the invention

The purpose of this utility model is the existing structure according to toaster; changed part; designed this cover carriage antiblocking power-off protection mechanism; though make toaster be stuck or upspring because of carriage not in place, as long as the timer operate as normal, just can automatic disconnection; cut off the electricity supply; make the toaster outage, thereby protected the safety of toaster effectively, avoided the generation of contingency.

The purpose of this utility model is achieved by the following technical solution: toaster carriage antiblocking power-off protection of the present utility model mechanism, place by shell, flap hand, base, in the electronics toaster that part such as electronic timer and movement is formed, this mechanism is by big stage clip, two springs that boost, vertical shaft, switch base, armature bracket, coil, carriage assembly, compositions such as carriage slide plate assembly, hook on the carriage assembly carriage assembly, the compressing tablet lower end is respectively arranged with armature bracket, switch cantilever press strip, after the carriage assembly carriage assembly moves down, link up with corresponding armature bracket position, compressing tablet is pushed down switch cantilever press strip, makes mains switch reed contact energized; The slide plate of carriage assembly and carriage slide plate assembly has one section dead slot.

The other end of armature bracket described in the utility model has groove about on the carriage assembly, the slide plate of carriage slide plate assembly is inserted in its groove.One two spring that boosts is put at the carriage assembly top, and a big stage clip is put in the bottom, and two stage clips are enclosed within on the vertical shaft respectively.Handgrip on the carriage assembly, hook, when compressing tablet moves down, compressing tablet is pushed down switch cantilever press strip, mains switch reed contact energized, the coil on the electronic timer gets electric, armature is held, hook is in the protruding hook of armature bracket vertical rod below, heating wire energising.Move a segment distance on the compressing tablet on the carriage assembly, reduce the pressure to the switch press strip, because the bounce of switch contact reed makes the perk of switch cantilever press strip, the contact return on the switch contact reed disconnects, and cuts off the complete machine power supply.Switch contact reed on the switch changes over two pairs of power-off protection contact reeds and crosses out; and on the compressing tablet on the carriage assembly, increase insulating material; when carriage assembly glided, its compressing tablet was pushed down power-off protection contact switch reed, made power-off protection contact reed closure.

On the carriage slide plate assembly of the present utility model carriage is installed.The bottom of the slide plate of carriage slide plate assembly is being held in the palm by the bottom of the groove on the carriage assembly.

The utility model compared with prior art has advantages such as simple in structure, safe and reliable.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is the structural representation of toaster balladeur train antiblocking power-off protection of the present utility model mechanism;

Fig. 2 is the position view of toaster balladeur train antiblocking power-off protection mechanism of the present utility model in general assembly drawing;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is an electrical circuit diagram of the present utility model;

Fig. 6 is the utility model electronics toaster schematic diagram;

Fig. 7 is the left view of Fig. 6;

Fig. 8 is the vertical view of Fig. 7;

Fig. 9 puts into normal position schematic diagram after the bread for the electronics toaster;

Figure 10 is the left view of Fig. 9;

Figure 11 is the vertical view of Figure 10;

Figure 12 is for after the electronics toaster puts into bread, the position view that flap hand is pressed;

Figure 13 is the left view of Figure 12;

Figure 14 is the vertical view of Figure 13;

Figure 15, Figure 16 are the part position schematic diagram of the utility model power-off protection mechanism;

Figure 17-(1)～17-(3) is the utility model power-off protection working process of mechanism schematic diagram;

Figure 18 is another embodiment schematic diagram of the present utility model;

Figure 19 is an another embodiment schematic diagram of the present utility model;

Figure 20 also is another embodiment schematic diagram of the present utility model;

Figure 21 also is another embodiment schematic diagram of the present utility model.

Specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail: as Fig. 1-shown in Figure 17; the user puts into toaster bread groove 7 with rusk 3; carriage 6 is held rusk; bread in the toaster and flap hand 2 are in the normal position; this moment power-off protection mechanism state position shown in Figure 17-(1); behind the socket that plugs in, flap hand 2 is pressed; at this moment carriage slide plate assembly 9 is at handgrip 12 (being connected to plastic cement flap hand 2 on the handgrip) fixing under the pressure of the groove of balladeur train 13 retaining and on the balladeur train; carriage 6; hook 14; compressing tablet 15 parts such as grade are along with the elastic force that the rusk on the carriage 6 overcomes the big stage clip 10 of balladeur train together moves down; when balladeur train 13 moves down into Figure 17-(2) position; fixing hook 14 is in the protruding hook of armature bracket 19 vertical rods below on the balladeur train 13; compressing tablet 15; depress switch cantilever 17; the other end of switch cantilever press strip 17 is being pressed switch contact reed 18; make the closing of contact energized of mains switch contact reed 18; coil 20 on the electronic timer; armature is held; heating wire energising work; begin to toast bread; at this moment; when balladeur train 13 moves down into the bottom limit position; the user promptly looses one's grip; no longer down firmly press flap hand 2; the hook of fixing on balladeur train 13 and the balladeur train 14; compressing tablet 15; handgrip 12 parts such as grade have lost staff to the power that presses down; only be subjected to the downward gravity of bread, be not enough to overcome the bounce that elastic force that the big stage clip 10 in balladeur train 13 belows makes progress and carriage slide plate assembly 9 bottoms are put net extension spring (not drawing) here.And whole upwards bounce-back, only move a little distance after, because of armature and armature bracket 19 are held, the power of balladeur train 13 whole bounce-backs are fastened by the lock hook on the armature bracket 19 because of hook 14, can't move up again.

As Figure 17-(2) position, reach the time of electronic timer setting when stoving time after, coil 20 dead electricity on the electronic timer, armature gets loose, move on the balladeur train 13, and the hook 14 on the balladeur train 13, compressing tablet 15, handgrip 12 and parts such as carriage slide plate assembly 9 and carriage 6 move simultaneously.If the carriage 6 on the carriage slide plate assembly 9 because of contingency stuck can not on move; only move on the balladeur train 13; then compressing tablet 15 moves on also following; compressing tablet 15 has reduced the pressure to switch cantilever press strip 17; the other end of switch cantilever press strip 17 cuts off the complete machine power supply because of the bounce of switch contact reed 18 disconnects contact (the both mains switch contacts) return on the power-off protection contact reed 18.No matter this moment, whether carriage 6 upspring, overheated contingency can not take place in toaster.

As Figure 17-(3) position, if carriage 6 is not stuck, balladeur train 13 goes back up to the normal position together with carriage slide plate assembly 9 and carriage 6 under the effect of big stage clip 10 elastic force, as Figure 17-(1) position.

Figure 18 is that the utility model crosses out the switch contact reed, and the compressing tablet 15 of its tape insulation is pressed on the connector on the contact reed that crosses out when balladeur train 13 glides.Make similarly changing form of switch closure.

Figure 19 is that the utility model crosses out the switch contact reed, and balladeur train about 13 is only opened a groove, and compressing tablet 15 is pressed on the connector on the contact reed that crosses out, makes similarly changing form of switch closure.

Figure 20 is that the utility model crosses out the switch contact reed, and its hook presses down armature bracket when balladeur train glides, and directly presses the biswitch reed by armature bracket again, makes similarly changing form of switch closure.

Figure 21 is that the utility model increases a switch contact reed and crosses out on regular tap, after its hook presses down armature bracket when balladeur train glides, by the armature bracket reed that compresses switch, makes similarly changing form of switch closure again.

Claims

1, a kind of toaster carriage antiblocking power-off protection mechanism, place by shell (1), flap hand (2), base (5), in the electronics toaster that part such as electronic timer and movement is formed, this mechanism is by big stage clip (10), two springs (11) that boost, vertical shaft (8), switch base (21), armature bracket (19), coil (20), carriage assembly (13), carriage slide plate assembly compositions such as (9), it is characterized in that the hook (14) on the carriage assembly (13), compressing tablet (15) lower end is respectively arranged with armature bracket (19), switch cantilever press strip (17), after carriage assembly (13) moves down, hook (14) corresponding armature bracket (19) position, compressing tablet (15) is pushed down switch cantilever press strip (17), mains switch reed contact (18) energized; Carriage assembly (13) has one section dead slot with the slide plate of carriage slide plate assembly (9).

2, toaster carriage antiblocking power-off protection according to claim 1 mechanism, the other end that it is characterized in that described armature bracket (19) has groove because of carriage assembly (13) about going up, and the slide plate of carriage slide plate assembly (9) is inserted in its groove.

3, toaster carriage antiblocking power-off protection according to claim 2 mechanism, one two spring that boosts (11) is put at described carriage assembly (13) top that it is characterized in that, and a big stage clip (10) is put in the bottom, and two stage clips are enclosed within respectively on the vertical shaft (8).

4, toaster carriage antiblocking power-off protection according to claim 3 mechanism; it is characterized in that handgrip (12), hook (14), compressing tablet (15) on the carriage assembly (13) is when moving down; compressing tablet (15) is pushed down switch cantilever press strip (17); mains switch reed contact (18) energized; coil on the electronic timer (20); armature is held, and hook (14) is in the protruding hook of armature bracket (19) vertical rod below, heating wire energising.

5, toaster carriage antiblocking power-off protection according to claim 4 mechanism; it is characterized in that moving a segment distance on the compressing tablet (15) on the carriage assembly (13); reduce pressure to switch press strip (17); because the bounce of switch contact reed (18); make switch cantilever press strip (17) perk; contact return on the switch contact reed (18) disconnects, and cuts off the complete machine power supply.

6, toaster carriage antiblocking power-off protection according to claim 5 mechanism; it is characterized in that switch contact reed (18) on the switch changes over two pairs of power-off protection contact reeds (22) and crosses out; and the compressing tablet (15) on carriage assembly (13) is gone up the increase insulating material; when carriage assembly (13) glides; its compressing tablet (15) is pushed down power-off protection contact switch reed (22), makes power-off protection contact reed closure.

7, toaster carriage antiblocking power-off protection according to claim 2 mechanism is characterized in that carriage (6) is installed on the carriage slide plate assembly (9), and the bottom of the slide plate of carriage slide plate assembly (9) is being held in the palm by the bottom of the groove on the carriage assembly (13).