JPH031912Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The invention relates to an electric cooker in which a cooking plate is provided with a plurality of electric heaters so that the cooking surface can be divided into a plurality of sections. In particular, the present invention relates to improvements in power supply connections for electric cookers.

(Prior Art) Conventionally, an electric cooking device such as a hot plate includes a cooking device body in which an electric heater is provided on a cooking plate, a protective frame that supports and houses the cooking device body, and a heating control of the cooking device body to a desired temperature. It consists of a heat-sensitive section, a temperature control section, etc. There is also known a device in which a plurality of electric heaters are provided to divide the cooking surface into a plurality of sections so that the entire or a portion of the cooking surface can be used. This type of electric cooker requires at least three insertion terminals for the electric heater, and correspondingly, at least three power supply connections are provided, and all of these power supply connections have an insertion connection structure. ing.

(Problem to be solved by the invention) In the above-mentioned conventional technology, at least three power supply connection parts all have an insertion connection structure, so the insertion terminal on the electric heater side and the power supply connection part on the power supply side are connected. If the relative dimensions of the two parts are not accurate, prying will occur and excessive force will be applied when the two parts are mated and uncoupled, resulting in poor operability, and repeated forced mating and uncoupling will cause wear. Easily causes abnormal heat generation, etc. Further, there is a problem in that sparks are generated due to a chattering phenomenon between the two.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an electric cooking appliance that allows for easy fitting and disengaging between the insertion terminal and the power supply connection even if the relative dimensions between the two are somewhat inaccurate.

[Structure of the invention] (Means for solving the problem) The present invention is constructed by forming at least three power supply connection parts of a power supply unit that supplies electricity to a plurality of electric heaters by an insertion connection part and a press connection part. Ru.

(Function) The plug-in terminal is guided by the press-on connection,
The insertion connection can be easily connected.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

In Figures 1 to 4, reference numeral 1 denotes a cooking plate made of an aluminum plate, aluminum die-casting, etc., with a cooking surface 2 made of a fluororesin layer formed on the front surface, and two sheathed heaters on the back surface. Electric heaters 3, 3a such as the above are integrally cast. In this case, one electric heater 3 is arranged at a position where it can heat approximately half of the cooking surface 2, and the other electric heater 3a is arranged at a position where it can heat the remaining part of the cooking surface 2. Plug-in terminals 4, 4a, 4b for electrical connection are provided at both ends of the electric heaters 3, 3a.
are connected with one common connection, and the insertion terminals 4, 4a, 4b are disposed such that their tips are located on the side circumference of the cooking plate 1. This cooking plate 1 and the electric heaters 3, 3a form a cooking device main body 5. Reference numeral 6 denotes a protective frame made of plastic that covers the cooking device main body 5 and is detachable from the cooking device main body 5, and around the frame there are power supply connection portions 7, 7a, corresponding to the plug terminals 4, 4a, 4b.
7b and a slidable power source section 8 that supplies electricity to the electric heaters 3, 3a; a heat sensing section 9 that senses the temperature of the cooking device main body 5; The electric heater 3 includes a temperature control unit 10 that controls energization of the electric heater 3a, a changeover switch 11 that switches between energization of both electric heaters 3 and 3a and energization of only one electric heater 3, and a power cord 12. In addition, the insertion terminal 4 of the electric heater 3, 3a,
4a, 4b, the heat sensitive section 9, the temperature control section 10, the changeover switch 11, and the power cord 12 are connected by a well-known electric circuit. the power supply connection section 7;
7a, 7b are grooves 14, 14a, 14 of the case 13
The power feeding connection portions 7 and 7b on both sides constitute an insertion connection portion from a plurality of insertion connection pieces 15 and a spring ring 17 attached to a contact portion 16 at a bent end thereof. When the insertion terminals 4, 4b are inserted, they are inserted while contacting the contact portions 16 of the plurality of insertion connection pieces 15 with appropriate pressure. In addition, the central power supply connection part 7a has a spring spring 18 and a pressing connection piece 19 in the groove 14a.
A contact point 20 is provided at the bent end of the press connection piece 19 facing the front end of the spring spring 18 to constitute a press connection part, and the plug terminal 4
When a is inserted, the contacts 20 come into contact and press the spring spring 18 to move the pressing connection piece 19 backward. Further, when connecting the insertion terminals 4, 4a, 4b and the power supply connection parts 7, 7a, 7b, after the contact 20 of the pressing connection part 7a and the insertion terminal 4a are connected, the insertion connection parts 7, 7
The contact portion 16 of b and the insertion terminals 4, 4b are arranged in a positional relationship such that they are connected. 21 is a jack-shaped protector, and 22 is a heat shield plate.

In the above configuration, when the power supply connection parts 7, 7a, 7b on the power supply section 8 side are inserted into the plug terminals 4, 4a, 4b on the electric heaters 3, 3a side, the plug terminal 4a is first connected to the contact 20 of the press connection part 7a. When the pressing connection piece 19 moves backward against the biasing force of the spring spring 18, the other insertion terminals 4, 4b contact the contact portions 1 of the insertion connections 7, 7b on both sides.
Connected to 6. Conversely, when disconnecting the connection, pull out the power supply connection parts 7, 7a, 7b on the power supply part 8 side, and the restoring force of the spring spring 18 connects the plug-in terminal 4a and the contact 20, and the contact part 16 and the plug-in terminal 4. , 4b are pulled out in a connected state, and first the contact portion 16 and the plug terminal 4,
4b are separated, then the contact 20 and the plug-in terminal 4a
and separate.

In this way, insert connection parts 7, 7 on both sides of the three pieces.
Since the press connection part 7a is provided on the inside side, the plug terminals 4, 4a, 4b and the power supply connection parts 7, 7 are connected to each other.
Even if the relative positions with a and 7b are slightly shifted, connection and disconnection can be easily performed without applying excessive force. Further, since there are fewer places of wear between the plug-in terminals 4, 4b and the insertion connections 7, 7b, there is no abnormal heat generation due to wear. Further, since the press connection portion 7a is provided, the chattering phenomenon is eliminated.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, in the above embodiment, the case is shown in which there are three plug-in terminals and three power supply connection parts, but the same applies if there are four or more, and the number of press connection parts is one.
Although the case of two or more is shown, it is also possible to use more than one. Further, the press connection portions may be provided on both sides instead of in the middle. Furthermore, although the power supply connection part side is operated to fit into the plug-in terminal, the plug-in terminal side may also be operated. Further, although the protective frame is shown to be detachable from the cooking device main body, it may be of a fixed structure. Moreover, it goes without saying that the electric cooker can be adapted to various types.

[Effects of the invention] The present invention has at least three power supply connections formed by an insertion connection part and a press connection part, so that an electric cooking appliance can be easily connected even when the relative dimensions of the insertion terminal and the power supply connection part are not accurate. Can be provided.

[Brief explanation of drawings]

1 and 2 are partially cutaway plan views showing one embodiment of the present invention, FIG. 3 is a sectional view, and FIG. 4 is a perspective view of an electric cooking appliance. 2... Cooking surface, 3, 3a... Electric heater, 4,
4a, 4b...Plug-in terminal, 5...Cooker main body, 7, 7b...Power supply connection part (insertion connection part), 7
a...Power supply connection part (press connection part), 8...Power supply part.

Claims (1)

[Claims for Utility Model Registration] (1) A cooking device having a cooking surface and a plurality of electric heaters, and a power supply connecting portion corresponding to at least three plug-in terminals of the electric heater. Equipped with a power supply section that energizes the heater,
An electric cooking appliance characterized in that the power supply connection part is composed of an insertion connection part and a press connection part. (2) The electric cooking as set forth in claim 1 of the utility model registration claim, characterized in that of the three power supply connections, both sides are comprised of insertion connection parts, and the middle one is comprised of a press connection part. vessel. (3) Claim 1 of the utility model registration claim characterized in that the power supply connection part is arranged so that the push connection part and the plug-in terminal are connected, and then the insertion connection part and the plug-in terminal are connected. electric cooker. (4) The electric cooking appliance according to claim 1, wherein the press connection portion has a contact and a spring.