KR101072682B1 - Vacuum Cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner having a motor protection device for simultaneously preventing the leakage of air and filtering foreign matter between the motor chamber and the dust collecting unit.

The present invention is the main body 100 is built-in a motor for generating a suction force; An upper cover 110 and a lower cover 120 forming an outer appearance of the upper and lower portions of the main body 100; A dust collecting unit (200) provided to be detachably mounted inside the main body (100) and filtering foreign matter introduced into the main body (100); In the vacuum cleaner is fixedly installed at a predetermined interval with the dust collection unit 200, comprising a motor chamber 500 for receiving the motor therein; Inside the main body 100, both sides of the dust collection unit 200 and the motor chamber 500 are fixedly mounted so as to be in contact with each other, the motor protection for filtering the foreign matter flowing into the motor chamber 500 It is characterized in that the device 300 is further provided. According to such a configuration, the loss of parts is prevented and the productivity is expected to be improved due to the reduction of the number of parts.

Vacuum cleaner, motor, safety filter, filter holder, dust collector exhaust seal

Description

Vacuum Cleaner {Vacuum Cleaner}

1 is an exploded perspective view showing a state in which a dust collecting unit is separated from a conventional vacuum cleaner.

Figure 2 is a perspective view showing a state in which the motor protection device is mounted in the vacuum cleaner according to the present invention.

Figure 3 is an exploded perspective view showing a structure in which the motor protection device is coupled to the motor chamber in the vacuum cleaner according to the present invention.

Figure 4 is a front view showing the combination of the filter and the filter holder, the main component of the motor protection device in the vacuum cleaner according to the present invention.

5 is an exploded perspective view showing a safety filter and a filter holder which are main components of a motor protection device in a vacuum cleaner according to the present invention;

Explanation of symbols on the main parts of the drawings

100 ..... Body 110 ..... Upper Body

112 ..... Push end 114 ..... Body handle

120 ..... Lower Body 122 ..... Rear Wheel

124 ..... fixing groove 126 ..... discharge part

200 ..... Dust collection unit 210 ..... Cover                 

220 ..... Detachable groove 230 ..... Dust collection case

232 ..... Handle 234 ..... Vent hole

240 ..... Separator 250 ..... Dust Filter

300 ..... motor protection device 310 ..... safety filter

320 ..... Filter holder 322 .....

324 ..... Crimping section 326 ..... Fixed flange

500 ..... Motor chamber 510 ..... Insertion rib

520 ..... Support

The present invention relates to a vacuum cleaner having a motor protection device for simultaneously preventing the leakage of air and filtering foreign matter between the motor chamber and the dust collecting unit.

1 is a perspective view showing a state separated from a conventional vacuum cleaner. As shown in the drawing, the vacuum cleaner has a structure including a main body 10 having suction means for sucking air in the room and a suction nozzle 70 into which air is introduced by suction force generated in the main body 10. .

The main body 10 has an upper body in which a lower body 30 to which the suction means is received and fastened, and a component built in the lower body 30 are not exposed to the outside, and a motor (not shown) for generating a suction force is built in. It is composed of a body (20).                         

The body handle 24 is provided on the upper portion of the main body 10 so as to be gripped by the user when the main body 10 moves, and the body handle 24 is spaced apart from the body handle 24 at predetermined intervals, and will be described below. A pressing end 22 is used for attaching and detaching the unit 80.

A power cord 32 for applying power to the main body 10, a wheel 36 for smoothly moving the bottom surface of the main body 10, and the dust collecting unit below the main body 10. A discharge part 38 through which clean air filtered at 80 is exhausted to the outside of the main body 10 is provided.

And between the main body 10 and the suction nozzle 70, the suction hose 50 made of a flexible material, the operation unit 52 connected to the end of the suction hose 50, and the operation unit 52 ) And an extension tube 60 for connecting the suction nozzle 70 are sequentially installed, so that the suction force generated in the main body 10 can be transmitted to the suction nozzle 70.

The dust collecting unit 80 is a dust collecting case 90, the foreign matter is collected in the dust collecting case 90, the cover 82 to prevent the foreign matter collected in the dust collection case 90, and the lower part of the center of the cover 82 A dust filter (84) fastened to the filter and filtering fine dust, a separator plate (96) for dividing the internal space of the dust collecting case (90) up and down, and an exhaust hole (94) through which the sucked air is exhausted It is configured to include.

Between the dust collecting unit 80 and the motor (not shown) is formed in a substantially 'net net' shape is provided with a dust collecting exhaust seal 34 to prevent a relatively large foreign material from entering the motor. In addition, the dust collecting tube exhaust seal 34 is preferably formed of an elastic member including an elastic force by serving to prevent leakage of air introduced into the motor from the dust collecting unit 80.

In addition, a motor obscuring device (not shown) is provided between the dust collecting tube exhaust seal 34 and the dust collecting unit 80 to prevent fine foreign substances from flowing into the motor.

The motor protection device (not shown) includes a safety filter 46 including a porous part for filtering fine dust, and a filter holder 40 mounted on one side of the cleaner while accommodating the safety filter 46. In addition, the safety filter 46 is preferably formed of a material that is secured to a certain strength or more to filter the foreign material flowing into the motor, the shape can be maintained as it is after washing.

An anti-separation unit 42 which prevents the safety filter 46 from being separated from the filter holder 40 outside of the filter holder 40, and is perpendicular to the anti-separation unit 42. Protruding molded fixed ribs 44 are constructed. In addition, the end portion of the fixed rib 44, the hook portion 45 is formed in a substantially arrowhead shape is further configured.

Hereinafter, the operation of the vacuum cleaner having the configuration as described above will be described.

First, when electricity is applied through a wire 32 connected to a power supply unit (not shown) built in the main body 10, the vacuum cleaner is in a standby state. At this time, if the user adjusts the suction step by using the button of the operation unit 52, a suction force suitable for each step is generated by a motor (not shown) built in the main body 10.                         

The suction force generated through the suction means is transmitted to the suction nozzle 70 through the suction hose 50 and the extension pipe 60. The air containing the foreign matter such as dust or lint is sucked by the suction force transmitted to the suction nozzle 70, and the sucked air is filtered and purified by the dust collecting unit 80 through the discharge unit 38. Cleaning is performed while discharging to the outside of the main body 10.

Looking at the purification process in the dust collection unit 80, heavy foreign matter in the sucked air is revolving from the upper portion of the dust collecting case 90 and dropped to the lower portion of the dust collecting case 90 through the separation plate 96 Are gathered.

Then, the heavy foreign matter is separated and the air containing only the fine foreign matter is circulated in the upper portion of the dust collecting case 90 and collected by the centrifugal force to the center through the dust filter 84 installed in the upper center of the dust collecting case (90) Is filtered. And the filtered clean air is discharged to the discharge part 38 through the motor protection device (not shown) and the dust collector exhaust seal 34.

However, the conventional vacuum cleaner as described above has the following problems. The dust collector exhaust seal 34 and the motor protection device are independently formed to perform different roles, and in particular, the motor protection device is selectively detachably provided, so that the loss and damage of parts frequently occur. There is a problem.

In addition, when the motor protection device is damaged or lost and cannot be used, when a cleaner is used without the motor protection device installed due to user's carelessness, a foreign material is introduced into the motor, which is fatal to the motor. May cause

An object of the present invention for solving the problems in the prior art as described above, further provided with a motor protection device that simultaneously performs the role of a dust collecting filter exhaust seal to prevent air leakage and a safety filter for filtering foreign substances flowing into the motor. It is to provide a vacuum cleaner.

According to the present invention for achieving the above object, a main body with a built-in motor for generating a suction force; An upper cover and a lower cover forming an outer appearance of the upper and lower parts of the main body; A dust collecting unit provided to be detachably mounted inside the main body to filter foreign matter introduced into the main body; A vacuum cleaner fixedly installed at a predetermined interval from the dust collecting unit and including a motor chamber accommodating the motor therein;

Inside the main body, a motor protection device is fixed to both surfaces of the dust collecting unit and the motor chamber facing each other so as to be in contact with each other, and to filter foreign substances flowing into the motor chamber.

The inner side of the lower body is characterized in that the fixing groove for fixing so that the motor protection device is not separated.

The motor protection device is characterized in that it comprises a safety filter formed of a breathable member to filter foreign matter, and a filter holder mounted to the fixing groove in a state of receiving the safety filter on one side.

The filter holder is formed of an elastic member to prevent the air flowing into the motor chamber from leaking.

The filter holder is provided with a separation prevention unit formed in a mesh shape perforated to interfere with the flow of the safety filter.

The filter holder is provided with a crimping portion protruded forward with a predetermined width to the outside around the edge of the separation prevention portion, characterized in that the filter holder is pressed with one side of the dust collecting unit.

The filter holder is provided with a fixing flange protruding with a predetermined length to the outside surrounding the outer surface is inserted into the fixing groove.

The front of the motor chamber is provided with an insertion rib protrudingly formed with a predetermined height in a size corresponding to the inside of the filter holder, it is characterized in that it is inserted into the motor protection device.

The motor chamber is provided with a support formed through the mesh shape in the inside of the insertion rib, characterized in that for supporting the motor protection device does not flow into the motor chamber.

The vacuum cleaner according to the present invention configured as described above reduces the number of parts by providing a dust collector exhaust seal that prevents air leakage and a motor protection device that simultaneously accommodates the role of a safety filter for filtering foreign substances introduced into the motor. The work process is simplified and the productivity is improved.                     

Vacuum cleaners are widely used in general households, and the demand is increasing due to the necessity of cleaning carpets and sofas, and a canister type in which a nozzle part, which is a suction port, is provided separately from the main body and connected by a connecting pipe. And it can be roughly divided into an upright method (Upright type) in which the nozzle unit is formed integrally with the main body.

In addition, the motor protection device performs a function of preventing foreign matter in the inhaled air from flowing into the motor chamber. Hereinafter, a canister type and an upright type motor as well as a motor that can be mounted on any type of vacuum cleaner The protective device will be described.

2 is a perspective view showing a state in which the motor protection device is mounted in the vacuum cleaner according to the present invention, Figure 3 is an exploded perspective view showing a structure in which the motor protection device is coupled to the motor chamber in the vacuum cleaner according to the present invention; Is shown.

As shown in these drawings, the vacuum cleaner according to the present invention includes a main body 100 forming an appearance, and a motor chamber 500 having a built-in suction means installed inside the main body 100 to suck air in the room. ) And a dust collecting unit 200 for filtering foreign substances introduced by the suction force generated by the motor chamber 500, and will be described below between the dust collecting unit 200 and the motor chamber 500. The motor protection device 300 is further provided.

The main body 100 is largely composed of a lower body 120 to which the suction means is received and fastened, and an upper body 110 to prevent the components mounted inside the lower body 120 from being exposed to the outside. Both sides of the main body 100 are provided with wheels 122 which contact the bottom surface to make a cloud work so that the main body 100 can smoothly move the bottom surface.

In addition, the upper body 110 and the body handle 114 is formed to protrude so that the user grips the body 100 when moving, and protruded to the rear of the body handle 114 from the body 100 A pressing end 112 is provided to selectively separate the dust collecting unit 200.

' 모양(도 2에서)으로 형성되어 상기 모터보호장치(300)가 세워진 상태로 하방으로 삽입되도록 한다. 그리고 상기 모터보호장치(300)가 삽입된 후에 상기 상부몸체(110)와 하부몸체(120)를 결합하게 되면 상기 고정홈(124)은 대략 '□'모양으로 상측이 차폐됨으로써 상기 모터보호장치(300)를 구속하게 된다. An inner fixing side 124 of the lower body 120 is provided. The fixing groove 124 is approximately '

'Is formed in the shape (in Figure 2) so that the motor protection device 300 is inserted downward in a standing state. When the upper body 110 and the lower body 120 are coupled to each other after the motor protection device 300 is inserted, the fixing groove 124 is shielded in an approximately '□' shape so that the upper side is shielded. 300).

The dust collection unit 200 is a dust collecting case 230, the foreign matter is collected in the dust collection case 230, the foreign matter collected in the dust collection case 230, the cover 210 to selectively shield and the cover 210, It is configured to include a dust filter 250 is fastened to the bottom of the center and filters the fine dust, and the separating plate 240 for dividing the internal space of the dust collecting case 230 up and down.

The dust collecting case 230 has a handle 232 protruding from an outer circumferential surface so that the dust collecting unit 200 can be gripped when necessary by the user, and protruded from a lower side of the handle 232 and the dust collecting case 230. In communication with the inside of the), the exhaust hole 234 for allowing the air sucked into the dust collecting case 230 to be exhausted to the motor chamber 500 is provided.

The front surface of the motor chamber 500 is provided with an insertion rib 510 protruded to a predetermined height. The insertion rib 510 is inserted into the motor protection device 300 so that air does not leak between the motor chamber 500 and the motor protection device 300. Therefore, the insertion rib 510 is preferably sealed without being spaced apart from the inner surface of the motor protection device 300.

The support 520 is formed inside the insertion rib 510. The support part 520 is perforated into a mesh shape to have a predetermined breathability, so that the air passing through the motor protection device 300 flows into the motor chamber 500. In addition, the support part 520 simultaneously serves to support the motor protection device 300 so as not to be sucked into the motor chamber 500.

Figure 4 is a front view showing the combination of the filter and the filter holder of the safety filter of the motor protection device in the vacuum cleaner according to the present invention, Figure 5 is a safety component of the main component of the motor protection device in the vacuum cleaner according to the present invention An exploded perspective view of the filter and the filter holder is shown.

As shown in these drawings, the motor protection device 300 is mounted on one side of the cleaner in a state in which the safety filter 310 and the safety filter 310 are accommodated to filter fine dust and have a substantially rectangular plate shape. Consisting of a filter holder 320.

The safety filter 310 has to be provided with a predetermined ventilation so that the air discharged through the exhaust hole 234 after being filtered in the dust collecting unit 200 can easily flow to the motor chamber 500 Of course. In addition, a predetermined strength must be included so as not to be changed due to the strong suction force by the motor. That is, the safety filter 310 is preferably formed of a material containing both breathability and strength.

On the other hand, the front of the filter holder 320 is provided with a separation prevention portion 322 formed in a mesh shape. The separation prevention part 322 is a direction in which the safety filter 310 is outside of the filter holder 320, that is, the dust collecting unit 200 is mounted after the safety filter 310 is inserted into the filter holder 320. Do not let go.

In addition, the outer edge of the separation prevention portion 322 is provided with a crimping portion 324. The pressing part 324 is a place where the dust collecting unit 200 is compressed with the exhaust hole 234 when the dust collecting unit 200 is mounted inside the main body 100, and is introduced into the motor chamber 500 from the exhaust hole 234. It serves to prevent air from leaking into the main body 100. Therefore, the filter holder 320 is preferably formed of an elastic member including a predetermined elastic force.

 In addition, the pressing part 324 is formed to be substantially similar to the edge shape of the exhaust hole 234, and is formed in a width wider than the thickness of the injection molding forming the outer peripheral surface of the exhaust hole 234. And, the back surface of the crimping portion 324 is supported by the support portion 520 configured on the front surface of the motor chamber 500, the edge of the back of the crimping portion 324 surrounds the insertion rib 510, the The filter holder 320 is prevented from flowing into the motor chamber 500.

The four sides of the filter holder 320 is provided with a fixing flange 326 formed stepped rearward from the crimping portion 324. The fixing flange 326 is inserted into the fixing groove 124 provided on one side of the lower body 120 to prevent the filter holder 320 from being separated from the lower body 120. Therefore, the fixing flange 326 is naturally formed to include a predetermined strength.

Therefore, the motor protection device 300 is supported by the support 520, is inserted and fixed by the insertion rib, the outer edge, that is, the fixing flange 326 is fixed by the fixing groove 124 provided inside the cleaner do. Therefore, after the motor protection device 300 is mounted inside the main body 100, the motor protection device 300 is not detached unless the user is forcibly pulled out.

Hereinafter, the operation of the vacuum cleaner having the configuration as described above will be described.

First, when electricity is applied to a motor (not shown) built in the main body 100, the vacuum cleaner is in a standby state. At this time, if the user adjusts the suction step by using a button of the operation unit (not shown), a suction force suitable for each step is generated by a motor (not shown) built in the main body 100.

Air containing foreign matters such as dust or lint is sucked by the suction force generated by the motor, and fine dust in the sucked air is collected by the dust collecting unit 200.

Looking at the filtering process in the dust collection unit 200, heavy foreign matter in the sucked air is revolving from the upper portion of the dust collecting case 230, passing through the separation plate 240 to the lower portion of the dust collecting case 230 Falls. Heavy foreign matter dropped to the lower part of the dust collecting case 230 is accumulated in the lower portion of the dust collecting case 230 without being returned to the upper portion of the dust collecting case 230 again.

In addition, the heavy foreign matter is separated, the air containing only the fine foreign matter is circulated from the upper portion of the dust collecting case 230 and collected by the centrifugal force through the dust filter 250 installed in the upper center of the dust collecting case 230 Is filtered.

Then, the air purified while passing through the dust filter 250 is filtered once more by the safety filter 310 provided in the motor protection device 300, the support portion protruded on the front surface of the motor chamber 500 After passing through 520, the discharge is discharged to the outside of the cleaner through the discharge unit 126 provided on the outer surface of the cleaner. Through this process, cleaning is performed.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

The vacuum cleaner according to the present invention as described above, even if the dust is applied to the inside of the motor, even if the dust is installed in the dust collector unit is not fastened due to the user's carelessness mounted on the main body, and cleaning, There is an advantage to being filtered.

That is, by filtering the dust in the air flowing into the motor chamber has the advantage of extending the life of the motor and further prevent the fatal failure of the motor.                     

And, by simultaneously accepting the role of the dust collector exhaust seal to prevent air leakage and the safety filter for filtering foreign substances introduced into the motor has the advantage of reducing the number of parts and assembly labor.

In addition, there is an advantage that the cleaner manufacturing cost is reduced and productivity is improved due to the reduction of the number of parts and assembly labor.

In addition, the motor protection device has the advantage that the loss and damage is prevented by being fixedly mounted so as not to be separated inside the body.

Claims (9)

A main body having a built-in motor generating suction force; A dust collecting unit (200) provided to be detachably mounted inside the main body (100) and filtering foreign matter introduced into the main body (100); In the vacuum cleaner is fixedly installed at a predetermined interval with the dust collection unit 200, comprising a motor chamber 500 for receiving the motor therein; Inside the main body 100, Both sides of the dust collecting unit 200 and the motor chamber 500 are fixed to both sides in contact with each other, the motor protection device 300 having a safety filter for filtering foreign matter flowing into the motor chamber 500 Is equipped with more, The dust collecting unit includes a dust collecting case in which foreign matter is collected, a dust filter for filtering dust in the air, and an exhaust hole through which filtered air is exhausted to the motor chamber, The motor protection device further includes a filter holder for accommodating the safety filter, wherein the filter holder is provided with a crimping portion that is compressed to the exhaust hole in a shape corresponding to an edge of the exhaust hole. . The vacuum cleaner as claimed in claim 1, wherein the main body is provided with a fixing groove (124) for fixing the motor protection device (300) so as not to be separated. The vacuum cleaner as claimed in claim 2, wherein the filter holder is mounted in the fixing groove (124). The vacuum cleaner as claimed in claim 1, wherein the filter holder (320) is formed of an elastic member to prevent leakage of air introduced into the motor chamber (500). The vacuum cleaner according to claim 1, wherein the filter holder (320) is provided with a separation prevention part (322) formed in a mesh shape to perforate the flow of the safety filter (310). delete 3. The vacuum cleaner as claimed in claim 2, wherein the filter holder (320) is provided with a fixing flange (326) protruding outwardly with a predetermined length surrounding an outer surface thereof and inserted into the fixing groove (124). According to claim 1, wherein the front of the motor chamber 500 is provided with an insertion rib 510 protruded to have a predetermined height in a size corresponding to the inside of the filter holder 320, the motor protection device ( Vacuum cleaner, characterized in that inserted into the interior. The method of claim 8, wherein the motor chamber 500 is provided with a support portion 520 formed through the mesh shape in the inner side of the insertion rib 510, the motor protection device 300 is inside the motor chamber 500 Vacuum cleaner, characterized in that the support does not flow into.

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