JPH062751Y2 - Air cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an air purifier with improved attachment of lead wires for energizing a motor.

[Prior Art] A conventional air purifier is provided with a suction grill and a discharge grill on the front of the case body, and at a portion of the case body close to the suction grill, a charged part and a charged part are included. A dust collection part is provided that consists of a collection part that collects dust particles that are charged during the passage of air, and a fan connected to the motor is installed between the dust collection part and the back plate that covers the back of the case body. The one provided is used.

[Problems to be Solved by the Invention] In such a conventional air cleaner, since the lead wire for energizing the motor is wired through a narrow gap between the back plate of the case body and the fan, the lead wire is not used during use. The wires may hang down and come into contact with the fan, obstructing the rotation of the fan, or stopping the rotation of the fan to cause burnout of the motor.

An object of the present invention is to solve the above-mentioned problems of the conventional example and to provide an air cleaner in which the lead wire does not obstruct the rotation of the fan.

[Means for Solving the Problem] In order to achieve the above object, in the air cleaner according to the present invention, a dust collecting portion is provided inside the case body, and the dust collecting portion and the back surface of the case body are provided. A fan connected to the motor is provided close to the back plate to be covered, and an air inlet communicating with a suction port of the fan is provided between the dust collecting unit and the fan, and an air flow. A partition wall having an outlet and an air passage wall that surrounds the air outlet from the outer periphery of the fan in a spiral shape is arranged, and the back plate has a groove portion for inserting one end of the air passage wall. A lead wire fitting groove for embedding a lead wire for energizing the motor is formed so as to cross the groove portion, and the lead wire embedded in the lead wire fitting groove is inserted into the groove portion. Hold down by the edge of the air passage wall Is characterized by.

[Operation] In the air cleaner having the above-described configuration, the lead wire is embedded in the lead wire fitting groove provided on the back plate and fixed by the partition wall, so the lead wire does not interfere with the rotation of the fan.

Embodiment Hereinafter, the present invention will be described in detail based on the illustrated embodiment.

Of the front side of the case body 1 molded with a synthetic resin material,
The portion from the lower side to the upper side is covered with a front door 2, and the front door 2 is provided with a suction grill 3. A portion of the front side of the case body 1 above the front door 2 is covered with a cover body 4, and the cover body 4 is provided with a discharge grill 5. Further, inside the case main body 1, a dust collecting portion 6 is provided at a position close to the suction grill 3, and the charging portion 7 and the dust-containing air 8 pass through the charging portion 7 in the dust collecting portion 6. A collecting unit 9 for collecting dust particles charged in the process is built in so that it can be taken out. Although not shown, a power transformer, an operation switch, a capacitor, a high voltage device, and a rectifier circuit board are provided inside the case body 1.

A back plate 10 made of synthetic resin is provided on the back surface of the case body 1, and a sirocco type fan 11 is installed between the back plate 10 and the collecting unit 9 so that the central axis of rotation is orthogonal to the back plate 10. The fan 11 is provided close to the plate 10, and the fan 11 is connected to the motor 12 to rotate. A partition wall 13 made of synthetic resin is provided between the collection unit 9 and the fan 11, and the partition wall 13 communicates with the suction port 14 of the fan 11 and the air outlet port 16 that communicates with the discharge grill 5. And an air passage wall 17 which is spirally surrounded from the outer periphery of the fan 11 to the air outlet 16 and has a plurality of reinforcing ribs 23 formed on the outer side at appropriate intervals.

The motor 12 is arranged at a position facing the trapping portion 9 so that its rotation shaft 27 faces the center of the air inlet 15, and a plurality of mounting plates 28 provided on the motor 12 are protruded from the inner surface of the back plate 10. The mounting plate 28 is hung over the tips of the protrusions 29 and the mounting plate 28 is fixed between the protrusions 29 by screws or the like, and the center of the fan 11 is fitted into the tip of the rotary shaft 27.
Spacers 31 with ribs are projectingly provided on the wall surface of the partition wall 13 facing the back plate 10, and the tips of the spacers 31 are fitted into the recesses of the protrusions 32 provided at the positions facing the back plate 10, respectively. It is fixed at.

The inner surface of the back plate 10 is provided with the groove portion 18 formed by the protrusions 24 and 25 protruding in parallel from the back plate 10 so that the entire one edge of the air passage wall 17 can be inserted. Guide projections 33 for introducing the end edges of the air passage wall 17 into the groove portions 18 are provided at various places of the groove portions 18. Further, the back plate 10 is formed with a concave portion 26 that is bulged outward so as to fit the rear portion of the motor 12,
A lead wire fitting groove 19 for embedding a lead wire 20 for energizing the motor 12 is also provided by inflating the back plate 10 to the outside, and the lead wire fitting groove 19 is communicated with the recess 26. In addition, it is provided so as to cross the groove portion 18.

With the lead wire 20 embedded in the lead wire fitting groove 19, the partition wall 13 is inserted into the case body 1 and the entire edge of the air passage wall 17 is inserted into the groove portion 18.
A part of the groove portion 18 that crosses the groove portion 18 is pressed by the edge of the air passage wall 17, and the lead wire 20 fitted in the lead wire fitting groove 19 is prevented from coming out of the lead wire fitting groove 19.

Further, by embedding the lead wire 20 in the lead wire fitting groove 19, the clearance between the inner surface of the back plate 10 and the fan 11 can be reduced, so that the air blowing performance is improved, and furthermore, the lead wire 20 can flow the air. The proper air volume can be obtained without any obstacle.

[Advantages of the Invention] As described above, the air cleaner according to the present invention has the above-described configuration, and thus the lead wire for energizing the motor is provided on the back plate of the case body. It can be kept embedded in the fan at all times, and the lead wire can be prevented from touching the fan. Moreover, the lead wire can be pressed down simply by inserting the edge of the air passage wall into the groove, so there is no need for special parts or work to hold down the lead wire, and the assembly work of the air cleaner is efficient. To be done.

[Brief description of drawings]

The drawings show an embodiment of the air purifier according to the present invention. Fig. 1 is a front view, Fig. 2 is a rear view, Fig. 3 is a side view with a front door opened, and Fig. 4 is a sectional view. FIG. 5 is a front view of the back plate and the fan mounted inside the back plate, FIG. 6 is a rear view of the partition wall, and FIG. 7 is a sectional view showing a state in which the lead wire is pressed into the groove. Reference numeral 1 is a case body, 4 is a cover body, 6 is a dust collecting portion,
Reference numeral 10 is a back plate, 11 is a fan, 12 is a motor, 17 is an air passage wall, 18 is a groove portion, 19 is a lead wire fitting groove, and 20 is a lead wire.

Claims (1)

[Scope of utility model registration request] 1. A dust collecting portion is provided inside a case body, and a fan connected to a motor is provided between the dust collecting portion and a back plate covering a back surface of the case body in the vicinity of the back plate. Between the dust collector and the fan, an air inlet communicating with the suction inlet of the fan, an air outlet, and an air passage wall that surrounds in a spiral shape from the outer periphery of the fan to the air outlet. And a groove portion for inserting one end of the air passage wall is formed in the back plate, and a lead wire fitting groove for embedding a lead wire for energizing the motor is formed. An air purifier characterized in that it is formed so as to cross the groove portion, and the lead wire embedded in the lead wire fitting groove is pressed by an edge of the air passage wall inserted in the groove portion.