JPH0436723Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a hair dryer, and its purpose is to provide a hair dryer with good workability in assembling the heat generating part and the electric motor part.

[Conventional technology]

This type of hair dryer generally has a structure in which a resistance wire is wound around a heating board having a cross-shaped configuration, a motor is disposed at the rear end of the board, and the motor is housed in a main body case.

[Problem that the invention attempts to solve]

When storing the heat generating board and motor inside the main body case, the terminals of the heat generating board and the motor are connected with soft lead wires, which may cause the lead wires to wobble or rotate in opposite directions. The wires are easy to break, and in order to prevent this, it is necessary to temporarily fasten them together with a separate rigid member until they are assembled and stored.Moreover, this separate member must be heat resistant, making the temporary fastening structure complicated. This resulted in unnecessary costs and was undesirable.

In particular, when storing this assembly, you will need to fix the main body case with one hand and hold the temporary assembly of the heating board and electric motor with the other hand to assemble it into the main body case.
In recent years, with the increase in power output, the shape of the heat generating board and electric motor have become larger, and it is now necessary to hold them together with one hand.In this case, at least one device that can firmly hold both together just by grasping the electric motor is required. Such handling was difficult with conventional products.

[Means for solving problems]

The present invention was developed in view of the above points, and involves wrapping a resistance wire R 3 around the heat generating boards 7 assembled in a cross-like configuration, and connecting both ends of the resistance wire R ₃ away from the intersection center position of the adjacent heat generating boards 7. Terminal 1 provided at each position
4 to support the heat generating board 7 in a crossed state, and in this state, the lead wire 12 of the rectifier 6 attached to the input terminal of the motor 8 is connected and fixed to the terminal 14, and the heat generating board 7 and the motor 8 are fixed. It is a combination of.

[Effect]

With this configuration, the heat generating board and the electric motor are firmly fixed by the lead wire of the rectifier attached to the input terminal of the electric motor, and the gap between the two is prevented from deforming, for example. During assembly, it can be inserted into the main body case from the heat generating board side by grasping only the motor side with one hand.
In particular, a heating board configured in a cross-like manner is likely to lose its intersecting condition, for example, the crossing angle. If the crossing angle becomes wrong, the cross-sectional area of the flow path divided into four parts of the cylindrical main body case will change in size. However, this causes abnormal local heat generation, but according to the present invention,
Since both ends of the resistance wires wrapped around the heat generating boards are fixed to terminals provided at positions apart from the intersection centers of the adjacent heat generating boards, a temporarily assembled crossing state can be maintained. When directly connecting each of the lead wires on the motor side, positioning is easy and connections such as soldering and riveting are easy. The stay functions to maintain the center relationship, and it can be assembled into the main body case without disturbing the intersecting condition, suppressing local abnormal heat generation and facilitating the assembly work.

〔Example〕

Hereinafter, details of the present invention will be explained according to one embodiment. In Figure 1, 1 is the main switch, and in addition to switching the AC power supply P between "ON" and "OFF", it can also switch between "strong" and "weak" by connecting a diode 4 to one side. There is. That is, the a side is a "strong" mode in which the AC power P is directly supplied without going through the diode 4, and the b side is a "weak" mode in which the AC power P is half-wave rectified and supplied through the diode 4. _R1 ,
R ₂ and R ₃ are a plurality of types of resistors that form the heat generating portion, and as will be described later, these wire diameters and heat generation amounts are different. 2 is 240V (200~240V) and 120V (100V)
_This is a voltage changeover switch that switches _the voltage _between The heating circuits are connected in parallel, and the same voltage is applied to each heating circuit, making it 120V, and when connected to the side (shown by the solid line), both heating circuits, that is, resistors R ₁ , R ₂ , and R ₃ Connected in series for 240V. 3 is a temperature rise preventer such as a fuse or thermostat connected to the main circuit, 5 is an electric motor, and 6 is a rectifier connected to both ends of resistor _R3 , which is the resistor of the second heating circuit.
The value of R ₃ is set so that the voltage generated across it generates the rated voltage of the motor 5. 7
is a heat-generating board made of mica plates assembled in a cross shape, and resistance wires R ₁ , R ₂ , and R ₃ are wound around this board. A resistor that supplies voltage to the motor 5
R ₃ is wound around the heat generating board 7, and its both ends are fixed to terminals 14 provided at positions separated by the intersecting centers of the adjacent heat generating boards 7. Being mounted away from the intersection center is effective in increasing the accuracy of the intersection angle, and
Due to the rigidity of the resistor R ₃ , the temporarily assembled state of the heat generating board 7 is maintained. In this temporarily assembled state, the lead wire 16 of the rectifier 6 is connected to the heat generating board 7 side. 8 in FIG. 1 is an electric motor, and its input terminal 15 side is the board 7.
The electric motor 8 and the substrate 7 are arranged so as to face sideways and to be located at the center of intersection of the substrate 7, so that the centers of the electric motor 8 and the substrate 7 are almost aligned, and are fixed to the center of the rectifying tube 9. Therefore, the substrate 7 is also fixed to the center of the rectifying cylinder 9. The rectifier 6 includes, for example, four elements combined and bridge-connected to form a full-wave circuit.One side lead wire 16 of the bridge-connected rectifier 6 is directly attached to the input terminal 15 of the electric motor 8, and the other side lead wire 16 is connected directly to the input terminal 15 of the electric motor 8. Two lead wires 12
is extended and directly connected to both terminals 14 of the resistance wire _R3 .

When assembling, simply insert the tongue piece 13 formed on the heat generating board 7 into the groove 10 of the rectifying cylinder 9, and connect the lead wire 12 on the motor 5 side and the terminal 14 on the heat generating board 7 side, and the two will be integrated. , after which it is assembled into a main body case (not shown).

By connecting the two lead wires 12 of the rectifier 6 and the terminals 14 in this manner, the crossing angle of the intersecting heat generating boards 7 is maintained by the stay action of the rectifier 6 via the two lead wires 12. At the same time, the heat generating board 7 and the electric motor 8 can be firmly and temporarily attached to each other while maintaining the central relationship between the heat generating board 7 and the electric motor 8, and can be positioned at the center of the rectifying tube 9.

[Effect of idea]

As described above, according to the present invention, the resistance wire R 3 is wound around the heat generating boards 7 assembled in a cross-like configuration, and both ends of the resistance wires R ₃ are placed at positions away from the intersecting centers of the adjacent heat generating boards 7. The heating boards 7 are fixed to the terminals 14 to maintain them in a crossed state, and in this state, the electric motor 8
The lead wire 12 of the rectifier 6 attached to the input terminal of
is connected to and fixed to the terminal 14, and the heating board 7
By integrating the and electric motor 8, the resistor
Since the heating boards 7 are temporarily assembled in a crossed state at R ₃ , the terminals 14 on the board side 7 are positioned.
Even if the lead wire 12 of the rectifier 6 on the motor 8 side is hard, it can be connected to the terminal 14 without major deformation correction.
2, the heat generating board 7 and the electric motor 8 side can be integrated to facilitate integration into the main body case.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the main parts, and FIG. 2 is a circuit diagram of the hair dryer. 6... Rectifier, 7... Heat generating board, 8... Electric motor, 12... Lead wire, 15... Input terminal, 16
……Lead.

Claims (1)

[Scope of utility model registration request] Resistance wires are connected to the heat generating board 7 assembled in a cross shape.
Terminals 14 are wound with R ₃ and each end is provided at a position away from the center of intersection of adjacent heat generating boards 7.
to maintain the heat generating substrate 7 in a crossed state,
In this state, the lead wire 12 of the rectifier 6 attached to the input terminal of the electric motor 8 is connected and fixed to the terminal 14, and the heat generating board 7 and the electric motor 8 are integrated into a hair dryer.