JPH04109096A - Air blower - Google Patents

Abstract

PURPOSE:To obtain an air blower in which automatic solder can be performed by applying preliminary solder to the core wires of plural lead wires for power supply, then holding these core wires in a bunch by a housing insertable into a fan case, and soldering each wire to an electric circuit in an air blower body. CONSTITUTION:In an axial air blower, a rotor with a fan 3 disposed thereto is rotatably supported in relation to the outer periphery of a stator 2 disposed at the periphery of a rotary shaft 1, and the whole body is enclosed in a fan case 5. Preliminary solder is applied to the core wires 6a on the end connection side of plural lead wires 6 for power supply and held in a bunch by a housing 7 that can be fixedly inserted into the fan case 5. The pre-soldered core wires 6 on the end connection side are soldered to an electric circuit on a substrate 8 assembled to the fan case 5. That is, the pre-soldered core wires 6a of the respective lead wires 6 are positioned into the connecting position in the electric circuit of the substrate 8 by fixing the housing 7 to the fan case 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a connection structure for power supply lead wires in a blower.

[Prior Art] Conventionally, in a blower, a plurality of lead wires for power supply are connected to an electric circuit on a board provided inside the blower body, as shown in, for example, Japanese Utility Model Application Publication No. 61-113577. Each end is soldered directly.

To connect the lead wires to the electric circuit on the board in the blower configured as described above, manually position the core wire at the connection end of each lead wire to the electric circuit on the board, and connect the core wires to the electric circuit on the board. This is done by thinning the solder by one inch.

[Problems to be Solved by the Invention] In the conventional blower described above, soldering of the plurality of power supply lead wires to the electric circuit on the board requires manual soldering of each lead wire to the electric circuit on the board. There are issues that need to be resolved, such as the need for positioning, which is troublesome, and the automation of soldering is also difficult.

The present invention has been made in order to solve such conventional problems, and an object of the present invention is to obtain a blower that can automate the soldering of a plurality of lead wires for power supply to an electric circuit on a board. .

[Means for Solving the Problems] A blower according to the present invention includes pre-soldering core wires on the connection end side of a plurality of lead wires for power supply, and holding them all together in a housing that can be inserted into a fan case. The connecting end of each lead wire is soldered to an electric circuit on a board provided inside the blower body.

5 For cattle j In this invention, the housing simplifies the positioning of the plurality of lead wires with respect to the electric circuit on the board, and the core wire at the connection end of each lead wire is pre-soldered to prevent easy staining. The soldering force of the electric circuit I\ on the board is improved, and it becomes possible to automate the soldering of the electric circuit I\ on the board for each lead wire.

[Embodiment] Figures 1 to 3 all show one embodiment of the present invention, so Figure 1 is a perspective view showing a housing that holds a lead wire for the power supply of an axial blower, and Figure 2 is a perspective view showing a housing that holds a lead wire for the power supply of an axial blower. 3 is a plan view showing the relationship between the housing and the substrate, and FIG. 3 is a sectional view showing the entire axial blower. In the figure, the axial blower has a structure in which a rotor 4, which has three fans arranged in three parts, is rotatably supported on the outer periphery of a stator 2 disposed on the outer periphery of a rotating shaft 1, and the entire fan case is housed in a cylindrical fan case. It is. The plurality of lead edges 6 for the power supply are pre-soldered to the core wires 6a on each connection end side, and are inserted and fixed into the fan gate 5. The soldered core wires 6a on each connection end side are each soldered to an electric circuit on a board S assembled to the fan gamer. As shown in FIGS. 1 and 2, the housing sink 7 is a brass sink molded product having a holding portion 9 for inserting and holding each end of the lead wire 6 for each power source.
The lead wire 6 can be inserted and fixed while being held in a holding part 9 formed close to the board mounting part. This housing 7 has a positioning function that, by fixing it to the fan gate 5, positions the pre-soldered core wire 6a of each -I wire 6 at the connection position in the electric circuit of the board 8, Each core wire 6a with preliminary soldering
is directly connected to the electric circuit on the board 8 by one inch of solder.

In the axial blower having the above configuration, the plurality of cables 6 for the power supply are collectively held by the housing 7, and then the housing 7 is fixed to the fan gate 5, so that the wires 6 are pre-soldered. The wire 6a can be soldered to the electrical circuit on the board S without positioning it at a connection position in the electrical circuit on the board 8. Since each core wire 6a is pre-soldered, the solder easily penetrates during soldering, and the workability of soldering the electric circuit I\ on the board 8 is improved. Automatic soldering to electrical circuits becomes possible.

4, 5, and 6 are side views showing other embodiments of the housing 7, respectively.

The housing 7 shown in Fig. 4 has a two-part structure with a base portion 7a and a presser portion 7b, so that the presser portion 7b can be fitted into the base portion 7a. Holding portions 9 for holding each lead wire 6 are provided in pairs on the surface.

In addition, in the case of the one shown in FIG. 5, each lead wire 6 is
An opening 10 having a size smaller than the diameter of the lead wire 6 is formed in each holding part 9 so that the lead wire 6 can be held. The lead wire 6 can be held more easily.

Furthermore, in the one shown in FIG. 6, the housing 7 shown in FIG. 1 is divided at the position where the holding part 9 is separated, and after each lead wire 6 is held, the mating surfaces are welded by ultrasonic waves. It is.

Effects of the Invention] As is clear from the description of the embodiments, according to the present invention, the housing simplifies the positioning of a plurality of lead wires with respect to the electric circuit on the board, and the connection end side of each lead wire Preliminary solder is applied to the core wires, making it easy to blend in.
The work efficiency of soldering to the electric circuit on the board is improved by one inch, and it is also possible to automate the soldering of each lead wire to the electric circuit on the board, which can reduce costs9.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a housing that holds a lead wire for a power source of an axial blower according to an embodiment of the present invention, FIG. 2 is a plan view showing the connection between the housing and the board, and FIG.
This figure is a sectional view showing the entire axial blower, and FIGS. 4, 5, and 6 are side views showing other embodiments of the housing, respectively. In the figure, 3 is a fan, 5 is a fan case, 6 is a lead wire, 6a is a core wire, 7 is a housing sink, 8 is a board, and 9 is a holding portion. Note that the same symbols in the figures refer to the same numbers.
or a corresponding portion. Agent Masuo Oiwa (and 2 others)

Claims (1)

[Claims] Preliminary soldering is applied to the core wires at the connection ends of multiple power supply lead wires, and these are held together by a housing that can be inserted into the fan case, and the connection ends of each of the lead wires are installed inside the blower body. A blower characterized by being soldered to an electric circuit on a printed circuit board.