KR0128414Y1 - Muffler chamber system for vacuum cleaner - Google Patents

Abstract

The present invention relates to a sound absorbing room surrounding the outside of the motor (motor) mounted inside the main body of the vacuum cleaner, and more particularly, the front casing and the rear casing constituting the sound absorbing room for mounting the motor of the drive chamber in the inner space. By fastening the fastening method as a snap fit for fastening, it relates to a sound absorbing room assembly structure using a snap fit to facilitate the assembly of the sound absorbing room, the assembly of the quick parts can be improved to improve the efficiency of the sound absorbing room assembly work.

The present invention forms a side of the sound-absorbing room, and a front casing having a plurality of fastening snap fit protrusions and fixing grooves on the rear edge side; and corresponding to the front casing, a plurality of fastening snap fit protrusions and fixing grooves on the front edge side. It provides a sound absorbing assembly using a snap fit, characterized in that it comprises a; and a rear end casing; and the sealing end surface of the front casing and the rear casing, the sealing ring formed with a plurality of insertion grooves in the body portion.

Description

Sound-absorbing room assembly structure using elastic fitting

1 is an exploded view showing the appearance of a general vacuum cleaner.

2 is a cross-sectional view of a vacuum cleaner according to a conventional technical configuration.

3 is a cross-sectional view of a sound absorbing room according to the prior art.

4 is a cross-sectional view along the line A-A 'of FIG.

5 is a perspective view of a sound absorbing room according to the present invention.

6 is an external view of a sealing member provided in the sound absorbing room according to the present invention.

7 is a partial cross-sectional view of the front shell and the rear shell combined in the sound absorbing room according to the present invention.

* Explanation of symbols for main parts of the drawings

220: front jacket 222,232: fastening elastic fitting

230: rear shell 223,233: fixing groove

240: sealing member 242: insertion groove

110: main body 134: sound absorption room

The present invention relates to a sound absorbing room surrounding the outside of the motor (motor) mounted inside the main body of the vacuum cleaner, and more particularly, a method of fastening the front and rear skins of the sound absorbing room for mounting the motor of the sound absorbing room in the inner space. By fastening as an elastic fitting, the assembly of the sound-absorbing room is facilitated, and the assembly of the sound-absorbing room can be quickly assembled, and the efficiency of the sound-absorbing room assembly can be improved.

In general, the vacuum cleaner 100, as shown in Figure 1, the auxiliary brush storage box 112, the dust indicator 115 and the cord winding button (button) on the upper surface of the main body 110 incorporating a motor (motor) 117 is formed, and the wheels (120a, 120b) are formed on both sides and the lower surface, the brush (125) for sucking the dust and foreign matter from the cleaning surface by the motor drive of the main body 110 and The multistage extension pipe 127 and the flexible conduit 130 are located at the front side of the main body 110.

That is, the dust collecting chamber 132 is provided with a dust bag 138 for filtering and storing the dust contained in the air sucked through the suction pipe 121, which is an air suction passage, the sound absorption chamber 134 143 is formed, the sound-absorbing room 50 is accommodated, and the dust collecting chamber 132 and the sound-absorbing room are provided in the separating wall 144 separating the dust collecting chamber 132 and the sound absorbing chamber 134. The intake port portion 145 is provided with a plurality of intake holes (not shown) to allow air to pass between the 50.

That is, in operation of the vacuum cleaner 100 having the above structure, when electricity is applied and the motor 140 is driven, a strong suction force is generated by the motor 140, and the dust or dirt on the cleaning surface is generated by the suction force. The contained air is introduced into the dust collecting chamber 132 through the suction pipe 121, and the air is filtered by the dust bag 138 of the dust collecting chamber 132, and the separation wall 144 continues. Is discharged to the outside through the inlet port 145 of the motor 140 and the exhaust port 143 of the sound absorbing chamber 134 of the motor 140.

As shown in FIG. 3 and FIG. 4, the general sound absorbing room 50 has a space for mounting a motor 140 for generating a strong suction force therein, and the front shell 60 constituting the external shape. The rear shell 70 is divided into two divided types, in order to form a cylindrical sound-absorbing room 50 that can be mounted in the inner space of the motor 140, the front shell 60 and the rear shell 70 ) Are assembled as a plurality of fastening screws.

In addition, the front shell 60 forms an inlet port 145 into which suction air flows, and a plurality of front fastening pieces 61 having screw holes 61a are formed on the outer surface of the rear end. The rear shell 70 protruding a plurality of rear fastening pieces 71 having the same shape as the fastening pieces 61 to the outer surface has a plurality of exhaust ports 73 capable of exhausting the suction air to the rear end surfaces. In addition, the opening 74 is formed in the center portion to be inserted into the back buffer 146 of the rubber material.

However, the problems occurring during the assembling operation of the sound absorbing room according to the above-described prior art configuration are as follows.

That is, a plurality of front and rear fastening pieces 61 and 71 each protruding from the outer surface of the front shell 60 and the rear shell 70 having the coupling cross-sectional structure shown in FIGS. 3 and 4 are fitted to the screw holes. When the operator performs screwing, the positions of the plurality of front and rear fastening pieces 61 and 71 protruding from the outer peripheral surface of one end portion of the front shell 60 and the rear shell 70 which are manufactured by injection molding are vertical lines. Since both are symmetrical with respect to the horizontal line, it is difficult to distinguish the top, rear, left, and right positions of the plurality of front and rear fastening funnels 61 and 71, and the front and rear fastening pieces 61 ( There was a problem in that it was difficult to recognize the exact fastening position with respect to the screw hole formed in each central part of 71.

Therefore, it is difficult to identify each screw hole (not shown) of the rear fastening piece 70 corresponding to each of the screw holes 61a of the front fastening piece 61, resulting in a trial and error according to the assembling work of a uniform worker. Due to the increased assembly time, it is difficult to quickly assemble, and a gap is formed due to incorrect assembly of the front shell 60 and the rear shell 70, resulting in leakage of exhaust air, and noise of the motor 140 leaks. There is a problem.

Therefore, the present invention is devised to solve the above problems, the object of which is, the purpose, can easily perform the assembly work of the front and rear envelopes constituting the sound-absorbing room, the assembly work more quickly without trial and error The present invention provides a sound-absorbing room assembly structure using elastic fittings that can prevent the noise of the motor by preventing leakage of exhaust air through more precise assembly.

In order to achieve the above object, the present invention provides a vacuum cleaner including a dust collecting chamber having a dust bag for filtering dust and foreign substances therein, and a sound absorbing chamber having a sound absorbing chamber incorporating a motor for generating suction force. A front envelope having a side and having a plurality of fastening elastic fitting holes extending rearward and recessed grooves recessed in an inner surface thereof; And a rear outer shell corresponding to the front outer shell, the rear outer shell having a plurality of fastening elastic fitting holes extending in the forward direction and recessed grooves formed therein; And a sealing member sealing the coupling end portions of the front and rear envelopes and having a plurality of insertion grooves formed in the body portion.

Hereinafter, the configuration and operation of the sound-absorbing room assembly structure using the elastic fitting sphere according to the present invention according to the accompanying drawings in detail as follows.

That is, the sound absorbing room 200 having the sound absorbing room assembly structure using the elastic fitting sphere according to the present invention is mounted in the sound absorbing room 134 of the vacuum cleaner to surround the motor 140 generating a strong suction force, the motor It absorbs the noise generated during operation, and serves to discharge the exhaust air to the outside through the exhaust port portion (143). In addition, one integrated sound absorbing chamber 200 can be separated into two parts, the front shell 220 and the rear shell 230, as shown in Figure 5, the integral cylindrical structure when the assembly is completed It is equipped with the same structure as the outer appearance of the motor 140.

The front end portion 220 is provided with an inlet port portion 221 having an inner hole through which suction air can be introduced by the suction force of the motor 140 built in, and an inner surface of the rear end portion for fastening extending backwards. A plurality of fixing grooves 223 formed to be recessed with the elastic fitting sphere 222 are alternately formed at regular intervals, the body length of which is longer than that of the front shell 220, and faces the rear end of the front shell 220. On the inner surface of the front end portion of the rear jacket 230, another structure having the same structure and a predetermined spacing as the fastening elastic fitting holes 222 and the fixing groove 223 formed on the inner surface of the rear end of the front shell 220. A plurality of fastening elastic fitting holes 232 and fixing grooves 233 are provided.

In addition, a predetermined interval between the fastening elastic fitting tool 222 and the fixing groove 223 formed on the inner surface of the front shell 220 is another fastening elastic fitting tool 222 formed adjacent to each other. ) Is the same as a predetermined interval between the fixing groove 223, and maintains the same constant interval as described above, is formed on the inner surface is a plurality of fastening elastic fitting holes 232 provided in the rear jacket 230 And the same for the fixing groove 233.

On the other hand, the sealing member 240 is fitted to seal between the rear end surface of the front shell 220 and the front end surface of the rear shell 230, the elastic fitting for fastening of the front shell 220 by sealing 222 and the fastening elastic fitting hole 232 of the rear shell 230 through the insertion groove 242 of the sealing member 240 to face each other to fix the groove 233 of the corresponding rear shell 230 and The insertion groove 242 is provided in the same position as the formation position of the plurality of fastening elastic fitting holes 222 and 232 to be elastically fastened to the fixing groove 233 of the front shell 220, The sealing member 20 is equipped with an I-shaped cross-section structure.

Therefore, as shown in Figure 3, the assembly of the front shell 220 and the rear shell 230 of the sound-absorbing room assembly structure using the elastic fitting according to the present invention is as follows.

That is, the front shell 220 having the inlet port 221 formed at the center of one end and surrounding the outside of the fan enclosure 140a fitted to the motor support 148 has a plurality of fastening elasticities formed at the rear end thereof. By one-to-one correspondence with the plurality of fastening elastic fitting holes 232 and the fixing groove 233 formed in the front end portion of the rear shell 230 facing the fitting sphere 222 and the fixing groove 223, The front envelope 220 and the rear envelope 230 are assembled into an integrated sound absorbing chamber 200.

The rear shell 230 which is one-to-one assembled to face the front shell 220 has a plurality of exhaust ports 234 formed at a rear end thereof, and a rubber material surrounding a protrusion projecting from the rear of the motor 140 at a central portion thereof. An opening 236 into which the rear shock absorber 146 may be fitted, and including a guide plate 141 in the inner space to reduce the generated noise by lengthening the exhaust air flow path, thereby forming the interior of the front envelope 220. One fastening elastic fitting sphere 222 formed on the surface is coupled one-to-one to one fixing groove 233 formed on the inner surface of the facing rear shell 220, and then the fastening elastic fitting sphere 222 and The fastening grooves 223 of the front shell 220 recessed at a predetermined interval correspond to one-to-one elastic fitting holes 232 of the rear shell 230 facing each other, and end portions thereof are elastically coupled.

In addition, as shown in FIG. 6 and FIG. 7, a seal is mounted between the cross section of the front shell 220 and the cross section of the rear shell 230 to seal the mating surface, and to seal the cross section having an 'I' shape. The member 20 has a plurality of insertion grooves 242 in the body portion, the formation position of the plurality of insertion grooves 242 is the elastic fit for fastening formed on the inner surface of the front and rear jackets 220, 230 Since the spheres 222 and 232 are formed to be fitted, the front and rear shells 220 and 230 correspond to the plurality of fastening elastic fitting holes 222 and 232 and the fixing grooves 223 and 233. When the one-to-one correspondence is coupled, the plurality of fastening elastic fitting holes 222 and 232 pass through the plurality of insertion grooves 242 formed in the body portion of the sealing member 240, and the front shell 220 It is to be in close contact with the end face of the cross section of the rear shell 230 and the).

Therefore, according to the sound-absorbing room assembly structure using the elastic fitting according to the present invention as described above, the fastening position of the fastening elastic fitting and fastening without the operator need to distinguish the fastening position of the front and rear jacket to be separated, assembled in detail with the naked eye. One-to-one correspondence coupling allows easy assembly, quick assembly of sound-absorbing rooms, prevention of delays in assembly work due to trial and error by the operator, and prevention of leakage of exhaust air by close assembly of accurate sealing members. Thus, a substantial effect of reducing motor noise occurs.

Claims (4)

The vacuum cleaner includes a dust collecting chamber 132 having a dust bag 138 for filtering dust and foreign substances therein and a sound absorbing chamber 134 having a sound absorbing chamber 200 having a motor 140 for generating suction force. In one embodiment, the sound absorbing chamber (200) forms one side, and has a plurality of fastening elastic fitting holes (222) extending rearwardly and having a recessed groove (223) formed in an inner surface of the front shell (220); And a rear jacket 230 corresponding to the front jacket 220 and having a fixing groove 233 recessed with a plurality of fastening elastic fitting holes 232 extending forwardly; A sealing member 240 sealing a coupling end portion of the front shell 220 and the rear shell 230 and having a plurality of insertion grooves 242 formed in the body portion; Sound-absorbing room assembly structure using an elastic fitting, characterized in that it comprises a. The method of claim 1, wherein the fastening elastic fitting holes 222, 232 and the fixing grooves 223, 233 are always maintained at a predetermined interval on the inner surface of the front shell 220 and the rear shell 230. Sound absorbing room assembly structure using the elastic fitting, characterized in that formed by. The method of claim 1, wherein the insertion groove 242 is formed in a plurality of positions so that the fastening elastic fitting 222 for the fastening of the front shell 220 and the fastening elastic fitting 232 of the rear shell 230 passes through. Sound-absorbing room assembly structure using the elastic fitting, characterized in that forming. The method of claim 1, wherein the cross-section portion of the front shell 220 and the cross-section portion of the rear shell 230 is elastically characterized in that one-to-one close coupling via the sealing member 240 having a 'I' shaped cross-sectional structure Sound-absorbing room assembly structure using custom fittings.