JPH0354716Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an electric iron having a substrate with electronic components.

(b) Conventional technology In conventional irons, for example,
As disclosed in Publication No. 136399, the board on which electronic components for controlling power supply to heaters, indicator lamps, etc. are arranged is placed inside the handle or inside the back of the handle, but this internal space is The heat generated by the heater causes a considerable temperature rise, and as a result, the performance of electronic components deteriorates due to the thermal effect.

(c) Problems to be solved by the invention The object of the invention is to protect the electronic parts by suppressing the rise in the temperature of the atmosphere in which the board having electronic parts is placed.

(d) Means for solving the problem The present invention comprises a base having a heater, an ironing cover provided above the base, a handle fixed to the top surface of the ironing cover, and a handle disposed at the rear of the handle. An insulating board, a board having electronic components attached at a predetermined distance to the rear of the insulating board, a lower member located below the board, and both side members located on the sides of the board. The handle is configured to include a guide plate, and a heat passage provided between both side members of the guide plate and the rear side wall of the handle.

(E) Function Since the present invention is constructed as described above, the hot air heated by the heater is blocked by the lower member of the guide plate, and moves upward through the heat passage.
No more accumulation near the board. Therefore, performance deterioration due to thermal effects on electronic components can be prevented.

(f) Embodiments Examples of the present invention will be described based on the drawings. 1
4 is a base in which the heater 2 is embedded and a thermistor 3 is attached; 4 is an iron cover made of thermosetting resin provided above the base;
and a lead-out hole 5 for leading out the lead wire of the thermistor 3.
is formed. Reference numeral 6 denotes a handle made of thermoplastic resin fixed to the upper surface of the ironing cover 4, with a grip portion 7 formed on the upper part, and with the lower end of the rear surface near the upper surface of the ironing cover 4 and behind the outlet hole 5. is forming. 8 is a cord 1 provided on the upper rear surface of the handle 6 and covered with the power cord 9.
This is a cord holding member that holds the fulcrum of the power cord 9 and allows the power cord 9 to freely rotate in the front and rear directions. 11 is a convex power cord attachment portion provided on the rear surface of the handle 6 and slightly below the cord holding member 8; At the wiring terminal, three partition plates 13 extending vertically,
It is divided by 13,13. 14 is handle 6
The guide plate is formed from both sides of the rear surface to the lower part, and has a width larger than that of the partition plates 13, 13, 13. The guide plate 14 also forms a heat passage 14a for dissipating heat upward between the side members 14', 14' and the rear side wall of the handle 6, and the lower member at the position corresponding to the wiring terminals 12, 12. 14'' is formed with notches 15, 15 for introducing lead wires of the heater 2, etc. 16 is made of, for example, thermoplastic resin and is guided by the guide plate 14 and is disposed so as to cover the wiring terminals 12, 12. It is an insulating plate whose upper part is thicker than the other parts to form a power cord holding part 17, and whose lower end is bent outward to form a bent piece 18. The plate 16 passes through handle back plate mounting bosses 19 for fixing a handle back plate 22 (described later), and insulating plate mounting bosses 2 provided on both sides of the electrical cord mounting portion 11.
It is screwed to 0.20. At this time, the insulating plate 16 exists at a predetermined distance from the rear surface of the handle 6 due to the partition plates 13, 13, 13, and the wiring terminal 12,
12 and secures a heat insulating space. Further, the power cord holding part 17 clamps and fixes the power cord 9 together with the power cord attaching part 11 so that the power cord 9 can withstand tension from the outside. 21 is a board with electronic components;
It is disposed at a predetermined interval at the rear of the insulating plate 16, and its lower end is placed and fixed on the upper surface of the bent piece 18, and its upper part is screwed. As a result, both sides and the lower side of the board 21 are surrounded by the guide plate 14. Reference numeral 22 designates a handle back plate disposed at the rear of the handle 6 so as to cover the insulating plate 16 and the substrate 21, and is screwed to the handle back plate attachment boss 19.

Thus, the insulating plate 16 insulates the board 21 and the wiring terminals 12, 12, and blocks heat from the rear surface of the handle 6. The heat from the iron cover 4 is blocked by the lower member 14'' of the guide plate 14 or the bent piece 18 (both of which constitute a heat shielding member) and moves upward through the heat passage 14a. Furthermore, the lower end of the rear surface of the handle 6 is located behind the outlet hole 5, so that even if the heat generated from the base 1 rises through the outlet hole 5, it will not affect the substrate 21 side. In the example, the guide plate 14 is provided on the rear surface of the handle, but the same effect can be obtained even if it is provided on the insulating plate 16.

(g) Effects of the invention As described above, the present invention is to attach a board with electronic components at a predetermined distance to the rear of the insulating plate disposed at the rear of the handle, and to install a board with electronic components located below the board. Since the side members are provided and thermal paths are provided on both sides of the board, the insulating plate can have an insulating and heat-insulating effect, and the hot air generated by the heater can be transferred to the lower part of the guide plate. It is possible to cut off the heat and guide it upward through a heat path to suppress the temperature rise near the board and prevent the performance of electronic components from deteriorating due to heat.

[Brief explanation of drawings]

Figure 1 is a sectional view of the main parts of the electric iron of the present invention.
FIG. 2 is also an exploded perspective view of the main parts. 1...Base, 4...Iron cover, 6...
Handle, 14... Guide plate, 14', 14'... Both side members, 14''... Lower member, 14a... Heat passage, 1
6... Insulating plate, 18... Bent piece, 21... Board.

Claims (1)

[Scope of utility model registration request] a base having a heater; an ironing cover provided above the base; a handle fixed to the top surface of the ironing cover; an insulating plate provided at the rear of the handle; a guide plate consisting of a board attached at a predetermined distance from each other, a lower member located below the board, and both side members located on the sides of the board; An electric iron comprising a heat passage provided between rear side walls.