CN200969051Y - A sudden jump thermostat with disconnect handle - Google Patents

Abstract

The utility model relates to a take kick-out type temperature controller of disconnection handle belongs to electrical apparatus auxiliary assembly manufacturing. On the basis of overcoming the prior art, a disconnection handle is arranged between a dished bimetal separation sheet and a passive disconnection sheet in a cavity formed by a sealing cover and a shell of the temperature controller, and the inner circle of the cavity and the deformation characteristics of the inner circle and the passive disconnection sheet are utilized to limit so as to deform the cavity and change the conduction and the disconnection of current, thereby achieving the purpose of heating. The novel switch is reasonable in design, simple to manufacture, convenient to install and use and capable of saving a common switch. The utility model comprises a sealing cover (1), a dish-shaped bimetallic strip (2), a passive breaking strip (4), a shell (5), an action rod (6), a connecting terminal (7), a movable contact strip (8), a switch-on button (9), a movable contact (10) and a static contact (11); it is characterized in that a disconnection handle (3) is connected between the dish-shaped bimetallic strip (2) and the passive disconnection strip (4); the passive breaking piece (4) and the breaking handle (3) are generally made of stainless steel sheets.

Description

A sudden jump thermostat with disconnect handle

Technical field: The utility model relates to a temperature controller for an electric heater, in particular to a sudden jump temperature controller with a disconnect handle.

Background technology: Existing thermostats, including manual reset thermostats and conventional thermostats, are all used for a single purpose, that is, they can only be used to control temperature, and cannot be used as ordinary switches. And the qualified rate of the product is not high, the manufacturing is difficult, the loss is large, and the manufacturing cost rises. Another example is the public ZL99236308.X utility model patent "jump type manual reset thermostat". A manual clutch that disconnects the contacts. This patent has the function of detecting reset and out-of-position without heating, and also has other various features. However, the structural feature proposed in this patent is that the manual clutch plate needs to be welded or riveted on the reset passive plate. It can be said that high temperature welding will cause partial overheating of the reset passive plate or local stress concentration, which will affect the elasticity and performance of the reset passive plate. In addition, welding manufacturing is difficult, the product qualification rate is not high, the loss is large, and the manufacturing cost increases. This is one of its weaknesses; at the same time, due to the large swing of the manual off-position piece and the large stroke required for work, it sometimes occurs that the manual cannot be disconnected, which is also one of its weaknesses. The inventor of the utility model finds a new way to develop a new structure to overcome the deficiencies of some prior art, which is the original intention of the utility model.

Contents of the utility model: The purpose of this utility model is to provide a sudden jump thermostat with a disconnect handle. The handle is an independent disconnect handle with a special structure, which is restricted by the inner circle and groove of the shell, with small swing, small working stroke, very convenient, and good working performance. The technical solution of the utility model to solve the technical problems is as follows: the inventor requires to overcome the disadvantages of the prior art, boldly designs a kind of ring-shaped disconnecting handle with a drag hook, and installs it on the dish-shaped bimetallic sheet and the passive disconnecting handle. The middle of the slice. Therefore, the utility model comprises a cover, a disc-shaped bimetal, a passive disconnection piece, a housing, an action bar, a terminal block, a moving contact piece, a connection button, a moving contact and a static contact; The structural feature is that the disconnection handle is connected between the dish-shaped bimetallic piece and the passive disconnection piece. Its second structural feature is that the disconnecting handle is a ring-shaped handle with a pull hook, and there is a triangular sharp mouth in the ring, and a pull hook is provided on the side of the ring. Its third structural feature is that the disconnecting handle is a monolithic handle with a hook, and the lower part of the monolith is connected with the hook. Its fourth structural feature is that the shell is connected under the circular cover; the dish-shaped bimetal, the disconnecting handle and the passive disconnecting piece are connected in the cavity formed by the cover and the shell; Connect the action lever; connect the terminal at the bottom of the housing; connect the moving contact piece at the bottom of the action lever, connect the on button at the bottom of the moving contact piece; connect the moving contact at the end of the moving contact piece, and the moving contact is connected to the The static contact on the other terminal is connected. Its fifth structural feature is that the passive disconnection piece and the disconnection handle are stainless steel pieces. During the test, it can be seen that before the temperature rises, the dish-shaped bimetal is isolated from the passive disconnection piece. When the electric kettle is filled with water and heated by electricity, when the water is heated to 100°C, the dish-shaped bimetal The sheet is heated and reversed, approaching and touching the passive disconnection sheet, and pushing the action rod to disengage the moving contact and the static contact. At this time, the circuit is disconnected, heating is stopped, and people can drink water. Therefore, the utility model has automatic power-off effect. Since a circular disconnecting handle with a pull hook is installed on the passive disconnecting piece, we can push (upward) the disconnecting handle to force the dish-shaped bimetal to reverse, which can disconnect the circuit and stop heating; and push to connect The button can make the dish-shaped bimetal rotate forward, so that it leaves the passive disconnection piece, so that the circuit can be connected again, and the heating starts again. Therefore, the disconnection and connection of the circuit can be controlled at any time by manual method, which plays the role of an ordinary switch. Like this, in the utility model, the automatic temperature control and the manual temperature control are separated independently and combined in the same product, which can save a common switch, which can save manufacturing costs. In addition, the disconnecting handle designed by the utility model can also have other forms, such as a single-piece handle with a pull hook, and the single piece can be rectangular, oval, or polygonal, and its length is one-third of the diameter of the dish-shaped bimetallic piece. One is sufficient, that is to say it can push the dish-shaped bimetal to rotate reversely or forwardly. In summary, the utility model has obvious advantages; (1) reasonable design and stable performance. (2) Easy to manufacture and easy to install, no high-temperature welding or riveting is required when making the disconnect handle, which greatly improves production efficiency, saves an ordinary switch, and reduces manufacturing costs; (3) Easy to use, automatic and manual Combined, giving people multiple options.

Description of drawings: The structure of the present utility model is further described below according to the accompanying drawings and specific embodiments.

Accompanying drawing 1 is the sectional front view of the utility model;

Accompanying drawing 2 is the front view of the handle of the utility model with a circular ring of parts;

Accompanying drawing 3 is the top view of accompanying drawing 2;

Accompanying drawing 4 is the front view of the part monolithic band pull hook handle of the utility model;

Accompanying drawing 5 is the top view of accompanying drawing 4.

In the attached drawings: 1. Cover, 2. Disc-shaped bimetal, 3. Disconnect handle, 4. Passive disconnect piece, 5. Shell, 6. Action rod, 7. Terminal block, 7-1. Wiring Terminal, 8, moving contact piece, 9, connection button, 10, moving contact, 11, static contact, 12, ring handle with hook, 12-1, ring, 12-2, triangular sharp mouth, 12-3, drag hook, 13, monolithic handle with drag hook, 13-1, monolithic, 13-2, drag hook.

The specific embodiment: make the utility model according to each accompanying drawing, the product that makes at last is as shown in accompanying drawing 1. Install a switch-type jump-type thermostat on the electric heater. When the electric heater is energized and heated, the disc-shaped bimetallic piece 2 is heated and deformed to a certain temperature and reversed, and the passive disconnection piece 4 is pushed to reverse, and then through the action The rod 6 disconnects the movable contact 10 from the static contact 11, thereby disconnecting the power supply and playing the role of an ordinary thermostat to control the temperature. During the heating process, apply a force on the disconnecting handle 3 to reverse the passive disconnecting piece 4, and then disconnect the moving contact 10 from the static contact 11 through the action lever 6, thereby disconnecting the power supply for forced disconnection circuit. Add a force on the button 9 to push the action lever 6, so that the passive disconnection piece 4 is reversed, the movable contact 10 and the static contact 11 are closed again, and the power is turned on. Therefore, the utility model can play the role of a common power switch, which saves a common switch and reduces the production cost. In this way, one device can be used for multiple purposes.

Claims (5)

1. A sudden jump thermostat with a disconnect handle, including a cover (1), a disc-shaped bimetal (2), a passive disconnect (4), a housing (5), and an action rod (6 ), connecting terminal (7), moving contact sheet (8), connection button (9), moving contact (10) and static contact (11); it is characterized in that the dish-shaped bimetal sheet (2) and the passive Connect the disconnect handle (3) between the disconnect pieces (4). 2. A sudden jump thermostat with a disconnect handle according to claim 1, characterized in that the disconnect handle (3) is a ring-shaped handle (12) with a pull hook, and the ring (12-1 ) has a triangular sharp mouth (12-2), and a drag hook (12-3) is arranged on the side of the ring (12-1). 3. A sudden jump thermostat with a disconnect handle according to claim 1, characterized in that the disconnect handle (3) is a single-piece handle (13) with a pull hook, and the single-piece (13-1) The lower part is connected with a drag hook (13-2). 4. A sudden jump thermostat with a disconnect handle according to claim 1, characterized in that the housing (5) is connected under the circular cover (1); between the cover (1) and The cavity formed by the shell (5) is connected with the dish-shaped bimetal (2), the disconnection handle (3) and the passive disconnection piece (4); the action rod (6) is connected in the middle of the shell (5); Connect the terminal (7) at the bottom of the housing (5); connect the moving contact piece (8) at the bottom of the action lever (6), and connect the button (9) at the bottom of the moving contact piece (8); The end of (8) is connected with movable contact (10), and movable contact (10) is connected with the static electric shock (11) that is connected on another connecting terminal (7-1). 5. A snap-off thermostat with a disconnect handle according to claim 1, characterized in that the passive disconnect piece (4) and the disconnect handle (3) are made of stainless steel.

Images