JPS5846746Y2 - Heating device for electric cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating device used in electric cookers such as electric pots and griddles.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heating device that allows a power terminal mounting member to be easily and reliably attached to a heat sink in which a heater is embedded.

Hereinafter, a heating device for an electric cooker according to an embodiment of the present invention will be described with reference to the accompanying drawings.

FIGS. 1 and 2 show an electric pot as an embodiment of the present invention. Reference numeral 1 denotes a main body case, and the main case 1 consists of an outer case 4 and an inner case 5.

At the center of the bottom of the inner case 5, a circular recess 6 is formed in which a heat sink 3, which will be described later, is placed.

The inner case 5 functions as a reflector for heat from the heat sink 3 and as a heat shield for preventing radiant heat from the heat sink 3 from being transmitted to the outer case 4.

Inside the main body case 1, an inner pot 7 is removably housed so as to be placed on the upper surface of the heat sink 3 disposed in the recessed portion 6.

Reference numeral 8 is a lid of the inner pot 7, and 9 is a handle.

Next, the structure of the heat sink 3, which is the heating device of this electric pot, was
This will be explained with reference to FIG.

The heat dissipation plate 3 is integrally molded into a disc shape from a light alloy material such as aluminum, and an annular protrusion 11 for embedding the heater 10 is integrally formed on the outer periphery of the lower surface of the heat dissipation plate 3.
A rectangular parallelepiped-shaped terminal block 13 is integrally protruded from both terminals 12 and 12 of the pull-out portion.

The terminal block 13 has heater terminals 12 at both ends thereof.
．． 12 protrusions 14, 14 are integrally provided, and a hole 17 is provided at an intermediate position between the protrusions 14, 14 for inserting a temperature-sensitive rod 16 of a power outlet 15. A cylindrical body 18 is integrally provided so as to protrude outward.

Further, between the protrusions 16, 16 and the cylindrical body 18, there is a recess 20 for fixing a power terminal mounting member 19, which will be described later.
20 are formed, and screw holes 21.21 are formed in the center of the recessed portions 20.20, respectively.

Reference numeral 22 denotes a rectangular boss protruding from the front surface of the base of the cylindrical body 18 in the terminal block 13, 23 an attachment leg formed at an appropriate location on the lower surface of the heat sink 3, and 24 attached to the heater terminal 12. This is the lead wire connection piece.

On the other hand, the mounting member 19 is composed of a substantially rectangular plate-like body, and a hanging piece 25.25 protruding from the front end of the mounting member 19 has a power source to be inserted into the receiving hole 26.26 of the electrical outlet 15. The terminal 27.27 is attached, and at the rear end there is an L-shaped mounting piece 28 to be fixed in the recess 20.20.
．． 28 are integrally provided in a protruding manner.

A cutout recess 29 into which the boss 22 is to be fitted is formed between the roots of the mounting pieces 28, 28.

30 is a hole for promoting heat dissipation from the mounting member 19, 31 is a screw hole formed in the horizontal portion 28H of the mounting piece 28, 32 is a lead wire connection piece for the power terminal 27, 33 is a lead wire, 34 is a screw.

This mounting portion 19 is connected to each horizontal portion 2 of its mounting piece 28.28.
8 a and 28 a are fitted into the recesses 20 and 20 of the heat dissipation plate 3 and attached with screws 34 .

At this time, each vertical portion 28 b , 2 of the mounting pieces 28 , 28
8b is brought into contact with the front surface 13a of the end block 13, and the boss portion 22 of the heat dissipation plate 3 is fitted into the notch recess 29 to restrict the horizontal and vertical swinging of the mounting member 19.

Therefore, when the mounting member is assembled, the positional relationship between the cylindrical body 18 and the power terminals 27 and 27 is different from that of the power outlet 15.
The positional relationship between the temperature sensing rod 16 and the receiving hole 26.

By doing this, when assembling the mounting member, the mounting piece 2
Just by fitting the horizontal parts 28a, 28a of 8 into the recesses 20, 20, the screw holes 31.31 of the mounting pieces 28.28
Since the screw holes 21 and 21 of the recesses 20 and 20 can be positioned, the mounting member 19 can be easily mounted in the normal position.

Note that this heat sink 3 is attached to the inner case 5 as shown in FIG.
The leg portions 23° 23...
・Attach the screws 35, 35 to the bottom of the concave portion 6.
・It is fixed by adhering to it.

This screw 35 also aligns a support 36 that connects the inner case 5 and the outer case 6.

The cylindrical body 18 of the heat sink 3 is made to protrude into the space between the inner case 5 and the outer case 4 through a window 37 formed at the bottom of the recessed part 6.

Furthermore, when the heat sink 3 is installed, its top surface is slightly higher than the bottom 5a of the inner case 5, so that when the inner pot 7 is placed on the heat sink 3, the inner case 5 and the inner pot 7 are A gap S is formed between the two.

Reference numeral 38 denotes a cover for receiving the power outlet 15, and the cover 38 is formed in an abbreviated shape, and has an opening 39 formed at a corner corresponding to the power terminals 27, 27 of the outer case 4. is covered.

The vertical piece 38a of this cover 38 has a power terminal 27.
Hole 40.40 for inserting 27 and hole 17 of cylinder 18
A guide cylinder 42 having a hole 41 coaxial and with the same diameter is formed.

The guide tube 42 projects from the inner surface of the cover 38 and has the function of facilitating insertion of the temperature sensing rod 16 of the power outlet 15 into the hole 17 of the tube body 18.

Further, the horizontal piece 38b of the cover 38 has a protrusion 43 on its upper surface and a leg 44 on its lower surface.

The cover 38 is fixed by engaging the protrusion 43 with the bottom edge 39a of the opening 39 and then screwing the vertical piece 38b to the peripheral wall of the outer case 4. .

Reference numeral 45 indicates a leg body fixed to the bottom surface of the main case 1.

Next, the effects of the heating device for an electric cooker of the present invention will be listed below.

That is, according to the present invention, (1) protrusions 14, 14 from which heater terminals 12, 12 protrude on the outer periphery of heat sink 3; (for inserting the hot rod 16)
A cylindrical body 18 having a diameter L17 is formed integrally with the cylindrical body 18, and a recess 20.20 is formed between the protrusions 14, 14 and the cylindrical body 18, and a power terminal 27.27 is provided in the recess 20.20. L-shaped mounting piece 28.2 protruding from the rear end of the mounting member 19
(2) The mounting member 19 fits and secures the mounting pieces 28 and 28 in the recesses 20 and 20, making it easy to position the mounting pieces 28 and 28 during the mounting process, thereby simplifying the mounting process. (3) The mounting member 19 is fixed with the L-shaped mounting pieces 28 and 28, which prevents the mounting member 19 from moving or swinging in the lateral and vertical directions, thereby ensuring a reliable mounting state. 19 can be easily positioned during installation, and can ensure a secure installation state after installation, making it possible to easily and reliably position the cylindrical body 18 and the power terminals 27 and 27 relative to each other. , etc. have practical effects.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an electric pot as an embodiment of the present invention;
The figures are a cross-sectional view taken along the line AA in FIG. 1, FIG. 3 is a partial cross-sectional view taken along the line B-B in FIG. 2, and FIG. 4 is an exploded perspective view of a main part of FIG. 3... Heat sink, 10... Heater, 12
... Heater terminal, 14 ... Protrusion, 15
...Power outlet, 16...Temperature-sensing rod, 17...Hole, 18...Cylinder, 19.
...Mounting member, 20...Recess, 26...
...Receptacle, 27...Power terminal, 28...
...Mounting piece.

Claims (1)

[Scope of utility model registration request] On the outer periphery of the heat sink 3 in which the heater 10 is embedded, there are protrusions 14 from which the terminals 12 and 12 of the heater 10 protrude.
14 and the protrusion 14, 14, a power outlet 1 is provided at an intermediate position.
Cylindrical body 1 having a hole 17 for inserting the temperature sensing rod 16 of No. 5
8 are integrally formed, and further four portions 20.20 are respectively formed between the side projections 14.14 and the cylinder body 18,
The mounting member 19, which has power terminals 27.27 to be connected to the terminals 12.12 of the heater 10 and inserted into the receiving holes 26, 26 of the power outlet 15, has an L-shaped mounting piece 28.27 at its rear end. 28 is integrally provided in a protruding manner, and the mounting pieces 28, 28 are fitted and fixed in the recesses 20, 20, respectively, by appropriate fixing means.