TWI743111B - Cleaner - Google Patents

Abstract

A cleaner includes: a suction motor that generates suction force; a suction unit that guides air and dust sucked by the suction force generated by the suction motor; a dust separation unit that separates dust from air guided through the suction unit; a main PCB that generates control signals for the suction motor and includes a first PCB and a second PCB spaced apart from each other; a handle unit that receives the main PCB; and a PCB connector that connects the first PCB and the second PCB to each other and is coupled to the handle unit.

Description

Vacuum cleaner

The invention relates to a vacuum cleaner.

The vacuum cleaner can be classified into a manual vacuum cleaner that the user personally moves for cleaning and an automatic vacuum cleaner that automatically moves for cleaning.

Manual vacuum cleaners can be classified into canister cleaners, upright cleaners, handy cleaners, and stick cleaners according to their types.

In addition, in the prior art, Korean Patent No. 10-1127088 (registered on March 8, 2012) has disclosed a handheld vacuum cleaner.

The hand-held vacuum cleaner includes a suction tube, an air flow generator, a cyclone separator, a power source, and a handle.

The printed circuit board (PCB) connected to the suction motor and the battery can be arranged in the handle.

However, according to this document, the airflow generator is provided above the handle and the power source is provided below the handle, and therefore, the internal space of the handle is small. Therefore, the structure for mounting the PCB is complicated and the mounting of the PCB is difficult.

The present invention provides a vacuum cleaner in which the main PCB can be easily installed in the handle.

The present invention provides a vacuum cleaner in which the main PCB can be fixed to the handle when the main PCB is inserted into the handle and a specific fastening body for fixing the main PCB to the handle is not used.

The present invention provides a vacuum cleaner, in which, by reducing the size of the main PCB, The size of the handle can be reduced.

The present invention discloses a vacuum cleaner including: a suction motor that generates suction; a suction unit that guides air and dust sucked by the suction generated by the suction motor; and a dust separation unit that is guided through the Dust is separated from the air in the suction unit; a main PCB, which generates a control signal for the suction motor, and includes a first PCB and a second PCB spaced apart from each other; a handle unit, which accommodates the main PCB PCB; and a PCB connector that connects the first PCB and the second PCB to each other and is coupled to the handle unit.

The present invention discloses a vacuum cleaner, including: a suction motor, which generates suction; a suction unit, which guides the air and dust sucked by the suction generated by the suction motor; a main body, including a dust separation unit, from Dust is separated from the air guided through the suction unit; a main PCB assembly, which generates control commands for the suction motor, and includes a plurality of PCBs; a handle unit, the main PCB assembly is coupled to the handle Unit, wherein the handle unit comprises: a first extension part, a longitudinal axis of the suction unit passing through the first extension part; and a second extension part extending toward the main body above the first extension part, And when the main PCB assembly is inserted into the second extension part, the main PCB assembly is coupled to the handle unit.

1‧‧‧Vacuum cleaner

2‧‧‧Main body

3‧‧‧Handle unit

5‧‧‧Suction unit

10‧‧‧The first body

12‧‧‧Second Body

16‧‧‧Body cover

18‧‧‧ button

20‧‧‧Suction Motor

22‧‧‧Flow guide

26‧‧‧Upper motor housing

27‧‧‧Lower motor housing

28‧‧‧Ejection guide

29‧‧‧Pre-filter

30‧‧‧Handle

40‧‧‧Battery

50‧‧‧Filter unit

60‧‧‧Battery housing

70‧‧‧Cover member

80‧‧‧Main terminal

90‧‧‧Handle terminal

110‧‧‧First dust separation unit

121‧‧‧The first dust storage part

123‧‧‧Second Dust Storage Unit

124‧‧‧Dust storage guide

130‧‧‧Second dust separation unit

136‧‧‧Connector support

136a‧‧‧stop rib

138‧‧‧Packing

139a‧‧‧Handle coupling

141‧‧‧The first main line

142‧‧‧Second Main Line

162‧‧‧Hinge

200‧‧‧Impeller

202‧‧‧Axis

232‧‧‧First Air Channel

234‧‧‧Second Air Channel

304‧‧‧Body coupling

309‧‧‧Thread guide

310‧‧‧First Extension

312‧‧‧stop

320‧‧‧Second Extension

322‧‧‧Space

324‧‧‧Support

324a‧‧‧Base

324b‧‧‧First rib

324c‧‧‧Second rib

325‧‧‧Connector coupling part

325a‧‧‧Hook hole

325b‧‧‧Hook locking rib

326‧‧‧Support rib

326a‧‧‧Sloping surface

326b‧‧‧Interlocking rib

327‧‧‧Insert hole

328‧‧‧Top stop

329‧‧‧fastening sleeve

332‧‧‧Handle body

334‧‧‧Handle cover

340‧‧‧Main Printed Circuit Board Unit (Main PCB Unit)

341‧‧‧Main Printed Circuit Board (Main PCB)

342‧‧‧First Printed Circuit Board (First PCB)

343、345‧‧‧Extension

343a, 345a‧‧‧inclined surface

344‧‧‧Second Printed Circuit Board (Second PCB)

346, 347‧‧‧ bump coupling part

348‧‧‧Connecting terminal

349‧‧‧First connection terminal

350‧‧‧Printed Circuit Board Connector (PCB Connector)

351‧‧‧Connector body

351a‧‧‧Bottom

351b, 351c‧‧‧side

352‧‧‧Spacer

353‧‧‧Coupling bump

354‧‧‧Reinforced ribs

355‧‧‧Light hole

357‧‧‧Coupling hook

360‧‧‧Printed Circuit Board Cover (PCB Cover)

361‧‧‧Top

362, 363‧‧‧ side

364‧‧‧Light Transmission Department

370‧‧‧Lighting Unit

371, 372, 373‧‧‧Light Emitting Diode

380‧‧‧Power Printed Circuit Board (Power PCB)

381‧‧‧Hole

382‧‧‧First switch

384‧‧‧Second switch

386‧‧‧Slit

390‧‧‧operating unit

391‧‧‧Operation buttons

392‧‧‧The first pressing part

394‧‧‧Second pressing part

396‧‧‧Support frame

400‧‧‧Connector

410‧‧‧First connection body

412‧‧‧Slit insertion bump

414‧‧‧Bump base

420‧‧‧Second connection body

430‧‧‧Bridge body

442‧‧‧First connection pin

443‧‧‧Second connection pin

444‧‧‧Third connection pin

445‧‧‧Fourth connection pin

450‧‧‧Printed circuit board space (PCB space)

490‧‧‧Battery terminal

522‧‧‧Air outlet

620‧‧‧Hinge coupling

628‧‧‧Charging base connection terminal

670‧‧‧Battery connection terminal

942‧‧‧The first handle line

944‧‧‧Second handle line

946‧‧‧Terminal connection line

3440a‧‧‧First side

3440b‧‧‧Second side

3441‧‧‧Slit

3442‧‧‧First cushion

3443‧‧‧The third cushion

3444‧‧‧Second cushion

3445‧‧‧The fourth cushion

A1‧‧‧Longitudinal axis

Figure 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention; Figure 2 is a side view of a vacuum cleaner according to an embodiment of the present invention; Figure 3 is a plan view of a vacuum cleaner according to an embodiment of the present invention; Figure 4 is When viewed from below the vacuum cleaner, a perspective view of the vacuum cleaner according to an embodiment of the present invention; Figure 5 is a cross-sectional view of the vacuum cleaner according to an embodiment of the present invention; Figure 6 is a view showing the main body and handle unit according to an embodiment of the present invention Schematic diagram when separated; Figure 7 is a perspective view of the handle according to an embodiment of the present invention; Figure 8 is a perspective view of the main PCB unit according to an embodiment of the present invention; Figure 9 is the main PCB shown in Figure 8 Front view of the unit; Figures 10 and 11 are exploded perspective views of the main PCB unit shown in Figure 8; Figure 12 is a perspective view of the PCB connector of the present invention; Figure 13 is a perspective view of a connector according to an embodiment of the present invention; Figure 14 is a plan view of the connector shown in Figure 13; Figure 15 is a perspective view of the main PCB unit and the connector that have been coupled; Figure 16 is a cross-sectional view showing the second PCB and the connector that have been coupled; Figure 17 is a perspective view of the handle body according to an embodiment of the present invention; Figure 18 is a cross-sectional view showing the internal structure of the handle; Figure 19 Is a cross-sectional view after the main PCB unit is coupled to the handle body; Figure 20 is a diagram after the power PCB is placed on the supporting ribs and the main PCB unit is coupled to the handle body; Figure 21 is when the handle cover and The operation unit is combined in the state shown in FIG. 20; and FIG. 22 is a diagram when the handle unit according to an embodiment of the present invention is coupled to the main body after assembly.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that when an element symbol is used to represent an element in a drawing, although the element is shown in a different drawing, the same element has the same element symbol as much as possible. In addition, in the description of the embodiment of the present invention, when it is determined that a detailed description of a known structure or function will hinder the understanding of the embodiment of the present invention, the detailed description will be omitted.

In addition, in the description of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. Each term is only used to distinguish the corresponding element from other elements, and does not limit the nature, order, or sequence of the corresponding component. It should be understood that when an element is "connected", "coupled" or "coupled" to another element, the former can be directly connected or coupled to the latter or can be "connected" or "coupled" by a third element interposed therebetween. "Connect" or "join" to the latter.

Figure 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, Figure 2 is a side view of a vacuum cleaner according to an embodiment of the present invention, Figure 3 is a plan view of a vacuum cleaner according to an embodiment of the present invention, Figure 4 is When viewed from below the vacuum cleaner, a perspective view of the vacuum cleaner according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view of the vacuum cleaner according to an embodiment of the present invention.

Referring to Figures 1 to 5, the vacuum cleaner 1 according to an embodiment of the present invention may Including main body 2.

The cleaner 1 may further include: a suction unit 5 coupled to the front of the main body 2. The suction unit 5 can guide dust-containing air into the main body 2.

The cleaner 1 may further include: a handle unit 3 coupled to the main body 2. The handle unit 3 may be arranged to be opposite to the suction unit 5 on the main body 2.

That is, the main body 2 may be provided between the suction unit 5 and the handle unit 3.

The main body 2 may include: a first body 10; and a second body 12 located on the first body 10. The first body 10 and the second body 12 may be directly combined or indirectly combined through an intermediate member.

The first body 10 and the second body 12 may be formed in a cylindrical shape, but are not limited thereto.

The first body 10 and the second body 12 respectively have openings at the top and the bottom. That is, the first body 10 and the second body 12 may have a top opening and a bottom opening, respectively.

The suction unit 5 may be coupled to the main body 2 such that the center of the suction unit 5 is approximately located at the boundary between the first body 10 and the second body 12.

The main body 2 may further include a dust separation unit that separates dust from the air sucked in through the suction unit 5.

The dust separation unit may include: a first dust separation unit 110, which may, for example, use a cyclone flow to separate dust. In this structure, the first body 10 includes a first dust separation unit 110.

The air and dust sucked in by the suction unit 5 spirally flow along the inner side of the first dust separation unit 110.

The axis of the cyclone flow in the first dust separation unit 110 may extend vertically.

The dust separation unit may further include: a second dust separation unit 130 that secondarily separates dust in the air discharged from the first dust separation unit 110. The second dust separation unit 130 may be disposed inside the first dust separation unit 110 to minimize the size of the dust separation unit. The second dust separation unit 130 may include a plurality of cyclone bodies arranged in a row.

As another example, the dust separation unit may include a dust separation unit, in which the axis of the cyclone flow may also extend vertically.

The first body 10 serves as a dust container to store the dust separated by the dust separation units 110 and 130.

The main body 2 may further include a body cover 16 for opening/closing the bottom of the first body 10. The body cover 16 can open/close the first body 10 by rotating. The button 18 for rotating the body cover 16 may be provided on the first body 10. The hinge 162 of the body cover 16 may be coupled to the hinge coupling part 620 of the battery case 60.

At least a part of the second dust separation unit 130 may be disposed in the first body 10.

A dust storage guide 124 that guides dust to be stored and separated by the second dust separation unit 130 may be provided in the first body 10. The dust storage guide 124 may be coupled to the bottom of the second dust separation unit 130 that is in contact with the top of the body cover 16.

The dust storage guide 124 may divide the internal space of the first body 10 into a first dust storage part 121 and a second dust storage part 123, wherein the first dust storage part 121 is used to store the dust separated by the first dust separation unit 110 Dust, the second dust storage part 123 is used to store the dust separated by the second dust separation unit 130.

The internal space of the dust storage guide 124 is the second dust storage part 123, and the space between the dust storage guide 124 and the first body 10 is the first dust storage part 121.

The body cover 16 can open/close both the first dust storage part 121 and the second dust storage part 123.

The vacuum cleaner 1 may further include: a suction motor 20 for generating suction; and a battery 40 for supplying electric power to the suction motor 20.

The suction motor 20 may be provided in the second body 12. At least a part of the suction motor 20 may be disposed above the dust separation unit. Therefore, the suction motor 20 is provided above the first body 10.

The suction motor 20 may communicate with the outlet of the second dust separation unit 130.

To this end, the main body 2 may further include: a discharge guide 28 connected to the second dust separation unit 130; and a flow guide 22 communicated with the discharge guide 28.

For example, the discharge guide 28 is provided on the second dust separation unit 130, and the flow guide 22 is provided above the discharge guide 28.

In addition, at least a part of the suction motor 20 is provided inside the flow guide 22.

Therefore, the axis of the cyclone flow in the first dust separation unit 110 may pass through the suction motor 20.

When the suction motor 20 is arranged above the second dust separation unit 130, The air discharged by the dust unit 130 may directly flow to the suction motor 20, so the passage between the dust separation unit and the suction motor 20 may be minimized.

The suction motor 20 may include a rotating impeller 200. The impeller 200 can be mounted on the shaft 202. The shaft 202 is vertically arranged.

An extension line from the shaft 202 (which can be regarded as the rotating shaft of the impeller 200) may pass through the first body 10. The rotation axis of the impeller 200 and the axis of the cyclone flow in the first dust separation unit 110 may be on the same line.

According to the present invention, there are advantages that the air discharged from the dust separation unit, that is, the path through which the air discharged upward from the second dust separation unit 130 flows to the suction motor 20 can be reduced, and the change in the direction of the air can be reduced. Small, so the loss of air flow can be reduced.

Because the loss of airflow is reduced, the suction power can be increased, and the life of the battery 40 for supplying power to the suction motor 20 can be increased.

The cleaner 1 may further include: an upper motor housing 26 covering a part of the top of the suction motor 20; and a lower motor housing 27 covering a part of the bottom of the suction motor 20.

The suction motor 20 may be provided inside the motor housings 26 and 27, and the flow guide 22 may be provided to cover the upper motor housing 26.

At least a part of the flow guide 22 may be separated from the upper motor housing 26. In addition, at least a part of the flow guide 22 may be separated from the second body 12.

Therefore, the first air passage 232 is defined by the inner side of the flow guide 22 and the outer side of the upper motor housing 26, and the second air passage 234 is defined by the outer side of the flow guide 22 and the inner side of the second body 12.

The air discharged from the second dust separating unit 130 flows to the suction motor 20 through the first air passage 232, and the air discharged from the suction motor 20 flows through the second air passage 234 and then is discharged to the outside. Therefore, the second air passage 234 serves as an exhaust passage.

The handle unit 3 may include: a handle 30 for the user to hold; and a battery housing 60 under the handle 30.

The handle 30 may be arranged behind the suction motor 20.

Regarding the direction, with respect to the suction motor 20 in the cleaner 1, the direction in which the suction unit 5 is arranged is the front direction, and the direction in which the handle 30 is arranged is the rear direction.

The battery 40 may be disposed behind the first body 10. Therefore, the suction motor 20 and the battery 40 may be arranged not to overlap each other vertically, but may be arranged at different heights.

According to the present invention, because the heavy suction motor 20 is arranged in front of the handle 30 and the heavy battery 40 is arranged behind the handle 30, the weight can be evenly distributed throughout the vacuum cleaner 1. It is possible to prevent damage to the user's wrist when the user uses his/her hand to manipulate the handle 30 for cleaning. That is, because the heavy components are distributed at the front and rear, and at different heights in the vacuum cleaner 1, it is possible to prevent the center of gravity of the vacuum cleaner 1 from being concentrated on either side.

Because the battery 40 is disposed under the handle 30 and the suction motor 20 is disposed in front of the handle 30, there are no components above the handle 30. That is, the top of the handle 30 forms a part of the appearance of the top of the cleaner 1.

Therefore, it is possible to prevent any element of the vacuum cleaner 1 from contacting the user's arm when the user uses his/her hand to manipulate the handle 30 for cleaning.

The handle 30 may include: a first extension 310 that extends vertically for the user to hold; and a second extension 320 that extends above the first extension 310 toward the suction motor 20. The second extension 320 may extend at least partially horizontally. In the present invention, the first extension 310 that the user can hold (the part that the user's palm touches) may be referred to as a holding part.

A stopper 312 for preventing the user's hand holding the first extension part 310 from moving in the longitudinal direction of the first extension part 310 (the vertical direction in FIG. 2) may be formed on the first extension part 310. The stopper 312 may extend from the first extension part 310 toward the suction unit 5.

The stopper 312 is separated from the second extension part 320. Therefore, the user should use part of the fingers above the stopper 312 and use other fingers below the stopper 312 to hold the first extension 310.

For example, the stopper 312 may be located between the index finger and the middle finger.

According to this arrangement, when the user holds the first extension 310, the longitudinal axis A1 of the suction unit 5 can pass through the user's wrist.

When the longitudinal axis A1 of the suction unit 5 passes through the user's wrist and the user's arm is extended, the longitudinal axis A1 of the suction unit 5 may be substantially aligned with the user's extended arm. Therefore, it is advantageous in this state that the user uses the least force when pushing or pulling the vacuum cleaner 1 with the handle 30 with his/her hand.

The handle 30 may include an operation unit 390. For example, the operating unit 390 may It is provided on the inclined surface of the second extension part 320. An instruction can be input through the operation unit 390 to turn on/off the cleaner (suction motor). For example, an instruction can be input through the operation unit 390 to turn on/off the suction motor. In addition, the suction strength of the suction motor 20 that has been turned on can be controlled through the operating unit 390.

The operation unit 390 may be arranged to face the user. The operation unit 390 may be disposed opposite to the stopper 312, and there is a handle 30 between the operation unit 390 and the stopper 312.

The operation unit 390 is set higher than the stopper 312. Therefore, the user can easily operate the operation unit 390 with his/her thumb and the first extension 310 in his/her hand.

In addition, because the operating unit 390 is located outside the first extension 310, it is possible to prevent the operating unit 390 from accidentally operating when the user uses the first extension 310 in his/her hand for cleaning.

The battery case 60 may be disposed under the first extension part 310.

The battery 40 may be detachably combined with the battery case 60. For example, the battery 40 may be inserted into the battery case 60 from under the battery case 60.

The rear side of the battery case 60 and the rear side of the first extension 310 may form a continuous surface. Therefore, the battery case 60 and the first extension 310 may be displayed as the same single unit.

When the battery 40 is inserted into the battery case 60, the bottom of the battery 40 may be exposed to the outside. Therefore, when the cleaner 1 is placed on the floor, the battery 40 can contact the floor.

According to this structure, there is an advantage that the battery 40 can be directly separated from the battery case 60.

In addition, because the bottom of the battery 40 is exposed to the outside, the bottom of the battery 40 can be in direct contact with the air outside the cleaner 1, so the battery 40 can be cooled more effectively.

The battery case 60 may include a charging dock connection terminal 628 for charging the battery 40 coupled to the battery case 60. The charging dock coupling terminal 628 can be brought into contact with the terminals of the charging dock (not shown in the figure) by placing the vacuum cleaner 1 on the charging dock.

The battery case 60 may include a battery connection terminal 670 connected to the battery terminal 490 in the battery 40 inserted in the battery case 60. The battery connection terminal 670 may be coupled to the battery terminal 490 through the top of the battery 40.

Referring to FIG. 3, the cleaner 1 may further include: a filter unit 50 having an air outlet 522 for discharging air that has passed through the suction motor 20. For example, air out The opening 522 may include a plurality of openings, and the openings may be arranged in a circumferential manner. Therefore, the air outlet 522 may be arranged in a ring shape.

The filter unit 50 may be detachably coupled to the top of the main body 2. The filter unit 50 may be detachably inserted in the second body 12.

When the filter unit 50 is combined with the main body 2, a part of the filter unit 50 is located outside the second body 12. Therefore, a part of the filter unit 50 is inserted into the main body 2 through the open top of the main body 2, and other parts protrude outward from the main body 2.

The height of the main body 2 may be substantially the same as the height of the handle 30. Therefore, the filter unit 50 protrudes upward from the main body 2, so the user can easily hold and separate the filter unit 50.

When the filter unit 50 is combined with the main body 2, the air outlet 522 is located at the upper part of the filter unit 50. Therefore, the air discharged from the suction motor 20 is discharged upward from the main body 2.

According to this embodiment, it is possible to prevent the air discharged from the air outlet 522 from flowing to the user when the user uses the vacuum cleaner 1 for cleaning.

The main body 2 may further include: a pre-filter 29 for filtering the air flowing into the suction motor 20. The pre-filter 29 may be provided inside the flow guide 22. In addition, the pre-filter 29 is disposed above the upper motor housing 26 and may surround a part of the upper motor housing 26. That is, the upper motor housing 26 may include: a filter support for supporting the pre-filter 29.

FIG. 6 is a diagram showing the main body and the handle unit according to an embodiment of the present invention when they are separated, and FIG. 7 is a perspective view of the handle according to an embodiment of the present invention.

The handle unit 3 may include: a handle body 332; and a handle cover 334, which covers the handle body 332.

The handle body 332 is formed as a part of the first extension part 310 and a part of the second extension part 320. The handle cover 334 is formed as the remaining part of the first extension part 310 and the remaining part of the second extension part 320.

That is, when the handle cover 334 is coupled to the handle body 332, the handle cover 334 and the handle body 332 are formed as a first extension 310 and a second extension 320.

The handle body 332 may be formed not only as the handle 30 but also as the battery case 60.

The handle unit 3 may further have a main body coupling portion 70 for coupling the handle unit 3 to the main body 2. The handle 30 and the battery case 60 may be coupled by the main body coupling part 70.

The handle unit 3 may further have a main PCB unit 340 for controlling the suction motor 20.

The main PCB unit 340 may be inserted into the internal space of the second extension 320, for example.

The main body 2 may further have a connector support 136 for supporting the connector 400.

The connector 400 may be connected to the suction motor 20 in the main body 2. In addition, the connector 400 may be connected to the main PCB unit 340. The connector 400 transmits the control signal of the main PCB unit 340 to the suction motor 20. The connector 400 may have signal terminals for transmitting control signals.

The main body 2 may further have a stop rib 136a for preventing the connector 400 supported by the connector support 136 from being separated upward.

The stop rib 136a is spaced apart from the connector support 136. The connector 400 may be inserted in the space between the stop rib 136a and the connector support 136. For example, the connector 400 can be slid horizontally onto the connector support 136.

The connector support 136 and the stop rib 136a may be formed on the second body 12, for example.

The main body 2 may have a main body terminal 80 and the handle unit 3 may further have a handle terminal 90. The handle terminal 90 can be connected to the main PCB unit 340.

The main body terminal 80 may be provided on the cover member 70 coupled to the main body 2. The main body terminal 80 may be connected to the handle terminal 90 when the handle unit 3 is coupled to the main body 2.

A plurality of main body lines 141 and 142 may be connected to the main body terminal 80. The main body lines 141 and 142 may be connected to the main body terminal 80 from below the main body terminal 80.

The main body lines 141 and 142 may include: a pair of first main body lines 141 connected to the suction motor 20 to provide power to the suction motor 20; and a pair of second main body lines 142 connected to the suction unit 5.

The main body lines 141 and 142 can be inserted into the main body 2 through packing 138 on the main body 2.

According to the present embodiment, because the signal terminal for transmitting control signals and the control terminal for supplying power are separated and provided in different positions, it is possible to prevent the size of the main body terminal 80 from increasing.

The handle unit 3 may have a body coupling portion 304 for coupling with the main body 2, and the main body 2 may have a handle coupling portion 139 a for coupling with the body coupling portion 304. The handle unit 3 may be vertically slidably coupled to the main body 2 through the body coupling portion 304 and the handle coupling portion 139a.

In addition, when the handle unit 3 is coupled to the main body 2, the main PCB unit 340 may be connected with the connector 400, and the handle terminal 90 may be connected with the main body terminal 80.

The handle terminal may further include a plurality of handle lines 942, 944, 946. The handle lines 942, 944, 946 may be connected to the main PCB unit 340.

The main PCB unit 340 may be connected to the battery 40. In addition, the main PCB unit 340 may receive operation signals from the operation unit 390. The main PCB unit 340 may supply power to the suction motor 20 and/or the suction unit terminals in the suction unit or control the suction strength of the suction motor 20 according to the input operation signal.

The handle lines 942, 944, 946 may include: a first handle line 942 connected to the handle terminal 90 to supply power to the suction unit terminal of the suction unit 5; and a second handle line 944 connected to the handle terminal 90 to Power is supplied to the suction motor 20.

When the handle terminal 90 is connected to the main body terminal 80, the first handle line 942 may be connected to the first main body line 141 of the main body 2, and the second handle line 944 may be connected to the second main body line 142 of the main body 2.

The handle lines 942, 944, and 946 may further include: a terminal connection line 946, which is connected to the charging dock connection terminal 628.

The handle unit 3 may further include: a wire guide 309 that guides the handle line to prevent the handle lines 942, 944, 946 from being entangled.

The structure of the main PCB unit 340 and a method of assembling the main PCB unit 340 will be described below.

The structure of the main PCB unit will be described in detail below.

Fig. 8 is a perspective view of the main PCB unit according to an embodiment of the present invention, Fig. 9 is a front view of the main PCB unit shown in Fig. 8, and Figs. 10 and 11 are the main PCB unit shown in Fig. 8 An exploded perspective view of the PCB unit. Figure 12 is the erection of the PCB connector of the present invention Body diagram.

Referring to FIGS. 8 to 12, the main PCB unit 340 according to this embodiment may include a main PCB 341.

The main PCB 341 may be composed of a plurality of separate PCBs to be disposed inside the second extension part 320. That is, the main PCB 341 may include a first PCB 342 and a second PCB 344.

The first PCB 342 and the second PCB 344 may be erected parallel to each other. The first PCB 342 and the second PCB 344 may be horizontally spaced apart from each other.

One or more connection terminals 348 for connecting the first PCB 342 and the second PCB 344 may be provided between the PCBs.

The main PCB unit 340 may further include a PCB connector 350 for connecting the first PCB 342 and the second PCB 344 to each other.

The PCB connector 350 may mechanically connect the first PCB 342 and the second PCB 344 to each other.

The PCB connector 350 may include a connector body 351, and the first PCB 342 and the second PCB 344 may be disposed on the connector body 351.

The connector body 351 may be formed in a plate shape. The PCB connector 350 may further include one or more spacers 352 for keeping the first PCB 342 and the second PCB 344 separated from each other.

The spacer 352 may protrude downward from the bottom 351 a of the connector body 351.

Coupling bumps 353 for coupling the first PCB 342 and the second PCB 344 may be formed on both sides of each spacer 352. In addition, bump coupling portions 346, 347 for coupling the coupling bumps 353 may be formed on the PCBs 342, 344. The bump coupling portions 346 and 347 may be grooves or holes.

In this specification, the PCB connector 350 and the main PCB 341 combined with each other may be referred to as a main PCB assembly.

The width of the spacer 352 may be smaller than the width of the connector body 351, so that when the coupling bump 353 of the PCB connector 350 is fitted into the bump coupling portions 346, 347 of the PCB 342, 344, the connector body 351 It can be placed on top of the first PCB 342 and the second PCB 344.

In addition, the spacer 352 may be separated from the side edges 351 b and 351 c of the connector body 351.

When the connector body 351 is placed on the top of the first PCB 342 and the second PCB 344, the coupling bumps 353 of the PCB connector 350 will fit into the bump coupling portions 346, 347 of the PCBs 342, 344 to The height of the main PCB unit 340 is reduced.

When the coupling bumps 353 of the PCB connector 350 are fitted into the bump coupling portions 346 and 347 of the PCBs 342 and 344, the connector body 351 may be separated from the tops of the first PCB 342 and the second PCB 344.

In addition, when the spacer 352 is separated from the side edges 351b, 351c of the connector body 351, because the coupling bumps 353 of the PCB connector 350 are fitted into the bump coupling portions 346, 347 of the PCBs 342, 344, The width of the main PCB unit 341 can be reduced.

When the PCB connector 350 has the spacers 352, the spacers 352 may be spaced apart from each other in the longitudinal direction of the connector body 351.

The PCB connector 350 may include a coupling hook 357 for coupling to the handle body 332.

The coupling hook 357 may extend horizontally from the connector body 351.

The reinforcing rib 354 may be formed on the bottom 351 a of the connector body 351 to prevent damage to the coupling hook 357 when the PCB connector 350 and the handle body 332 are coupled to the coupling hook 357.

Although not limited thereto, the reinforcing rib 354 may protrude from the bottom 351a of the connector body 351, and may connect the coupling hook 357 and the one or more spacers 352 to each other.

If the PCB connector 350 has a plurality of spacers 352, the reinforcing rib 354 may connect the coupling hook 357 and the spacer 352 closest to the coupling hook 357 among the spacers 352 to each other.

The light emitting unit 370 for displaying the state of the cleaner 1 may be provided on any one of the first PCB 342 and the second PCB 344.

For example, the light emitting unit 370 may be provided on the second PCB 344 in FIG. 11. The light emitting unit 370 may include one or more light emitting diodes. For example, in FIG. 11, the light-emitting unit 370 includes a plurality of light-emitting diodes 371, 372, and 373, which are spaced apart from each other in the longitudinal direction of the connector body 351.

Although not limited to this, the remaining power of the battery 40 or the suction strength of the suction motor 20 may be displayed through the light-emitting diodes 371, 372, and 373.

The connector body 351 may include a plurality of light holes 355 for allowing light from the light emitting diodes 371, 372, and 373 to pass through.

The light holes 355 may be spaced apart from each other in the longitudinal direction of the connector body 351. When the PCB connector 350 is coupled to the PCBs 342 and 344, the light holes 355 may be aligned with the light emitting diodes 371, 372, and 373.

The spacers 352 are each located between two identical light holes so as not to interfere with the light from the light emitting diodes 371, 372, and 373.

According to this configuration, the spacer 352 does not interfere with the light from the light-emitting diodes 371, 372, and 373, and at the same time prevents the light from two adjacent light-emitting diodes from interfering with each other. That is, each of the spacers 352 separates the path of light from two adjacent light emitting diodes.

The PCBs 342 and 344 may respectively include extensions 343 and 345 for supporting the power PCB 380. The extension portions 343 and 345 may respectively include inclined surfaces 343a and 345a for supporting the power PCB 380 at an angle.

The first connection terminal 349 connected to the power PCB 380 may be provided on any one of the first PCB 342 and the second PCB 344.

For example, the first connection terminal 349 is provided on the first extension 343 of the first PCB 342 in FIG. 11.

Any one of the first PCB 342 and the second PCB 344 may be connected to the connector 400 in the main body 2.

In the following description, an example in which the connector 400 is connected to the second PCB 344 is presented.

The main PCB unit 340 may further include a PCB cover 360 which covers the PCBs 342 and 344 and the upper part of the PCB connector 350.

The PCB cover 360 may include: a top portion 361 covering the top of the PCB connector 350; and a pair of side portions 362 and 363 extending downward from both sides of the top portion 361.

The side portions 362 and 363 not only cover the PCB connector 350 but also cover a part of the upper part of the PCB 342 and 344 at the same time.

The side portions 362, 363 can prevent the PCB 342, the PCB from being coupled to the PCB connector 350 344 moves horizontally in the handle 30.

The PCB cover 360 covers the light hole 355 of the connector body 351. The PCB cover 360 may include a plurality of light transmitting parts 364 so that the light passing through the light hole 355 may pass through the PCB cover 360. The light transmission part 364 has the same number as the light hole 355 and faces the light hole 355.

The light transmitting part 364 may protrude upward from the top 361 of the PCB cover 360.

At least the light transmitting portion 364 of the PCB cover 360 may be transparent or semi-transparent.

At the same time, the second PCB 344 may have a plurality of contact pad portions for electrically connecting to the connector.

The contact pad portions may be arranged on both sides of the second PCB 344.

The contact pad portions may include: one or more first pad portions 3442 on the first side 3440a of the second PCB 344; and a second pad portion 3444 spaced apart from the first pad portion 3442. For example, the first pad portion 3442 and the second pad portion 3444 are horizontally spaced apart from each other.

The contact pad portion may further include: one or more third pad portions 3443 on the second side 3440b opposite to the first side 3440a; and a fourth pad portion 3445 spaced apart from the third pad portion 3443. For example, the third pad portion 3443 and the fourth pad portion 3445 are horizontally spaced apart from each other.

On the second PCB 344, the first pad portion 3442 and the third pad portion 3443 face each other, and the second pad portion 3444 and the fourth pad portion 3445 face each other.

The second PCB 344 may have a slit 3441 for coupling the second PCB 344 and the connector in position.

The slit 3441 is provided between the first pad portion 3442 and the second pad portion 3444. Therefore, the slit 3441 is also provided between the third pad portion 3443 and the fourth pad portion 3445. The slit 3441 may be formed by cutting the end portion of the second PCB 344 on which the pad portion is provided.

Figure 13 is a perspective view of a connector according to an embodiment of the present invention, Figure 14 is a plan view of the connector shown in Figure 13, Figure 15 is a perspective view showing the main PCB unit and the connector that have been coupled, and Figure 16 is a cross-sectional view showing the second PCB and the connector that have been coupled.

Referring to Figures 13 and 16, the connector 400 of this embodiment may have: a first connecting body 410; a second connecting body 420 spaced apart from the first connecting body 410; and a bridging body 430 for connecting the first The connecting body 410 and the second connecting body 420 are connected to each other.

The bridging body 430 can connect the first connecting body 410 and the second connecting body 420 The lower parts of the s are connected to each other so that the second PCB 344 is coupled to the connector 400 from above the connector 400.

Therefore, the PCB space 450 for accommodating the second PCB 344 is defined between the first connection body 410 and the second connection body 420.

One or more first connection pins 442 and second connection pins 443 separated from the first connection pins 442 may be disposed on the side of the first connection body 410 facing the second connection body 420. The first connection pin 442 and the second connection pin 443 may be horizontally separated from each other.

One or more third connection pins 444 and fourth connection pins 445 separated from the third connection pins 444 may be disposed on the side of the second connection body 420 facing the first connection body 410. The third connection pin 444 and the fourth connection pin 445 may be horizontally separated from each other.

The first connection pin 442 and the third connection pin 444 may be spaced apart from each other and face each other. The second connection pin 443 and the fourth connection pin 445 may be spaced apart from each other and face each other.

A part of the connecting pins 442 to 445 may be respectively disposed inside the connecting bodies 410 and 420, and the remaining parts may protrude outward from the connecting bodies 410 and 420 toward the PCB space 450.

For example, the connecting pins 442 to 445 may be elastically deformable conductors, so that the connecting pins 442 to 445 protruding from the connecting bodies 410 and 420 can be pressed into the connecting bodies 410 and 420 by external force, respectively.

Alternatively, the connection pins 442 to 445 may be conductors and are fixed to the connection bodies 410 and 420, respectively.

The slit insertion bump 412 that is inserted into the slit 3441 in the second PCB 344 may be formed on the PCB space 450.

The slit insertion protrusion 412 may be disposed between the first connection pin 442 and the second connection pin 443. Therefore, the slit insertion protrusion 412 is also provided between the third connection pin 444 and the fourth connection pin 445.

The slit insertion bump 412 may protrude from the bridge body 430 to the PCB space 450. For example, the slit insertion protrusion 412 may protrude upward from the bridge body 430.

Alternatively, the slit insertion protrusion 412 may be formed on any one of the connecting bodies 410 and 420 and protrude toward the remaining one. Alternatively, the slit insertion protrusion 412 may connect the first connection body 410 and the second connection body 420 to each other

The projection base on which the stop rib 136a described with reference to Figure 6 is placed 414 may be formed on any one of the first connection body 410 and the second connection body 420. FIG. 13 shows an example in which the bump base 414 is formed on the first connecting body 410.

On the other hand, the second PCB 344 can be inserted into the PCB space 450 from above the connector 400.

When the second PCB 344 is inserted into the PCB space 450, the slit insertion bump 412 may be inserted into the slit 3441 of the second PCB 344.

When the slit insertion bump 412 is inserted into the slit 3441 of the second PCB 344, the second PCB 344 is usually connected to the connector 400.

In this state, the pads 3442 to 3445 are in positional contact with the connection pins 442 to 445, respectively.

According to the present invention, when the slit insertion bump 412 is inserted into the slit 3441 of the second PCB 344, the pads 3442 to 3445 contact the connecting pins 442 to 445, so as to prevent the second PCB 344 and the connector 400 from being assembled incorrectly .

In addition, since the assembly error of the second PCB 344 and the connector 400 is prevented, a short circuit caused by the connection of two adjacent pad portions through the connection pins can be prevented.

According to the present invention, because the second PCB 344 is inserted between the two connecting bodies 410 and 420 and the slit insertion bump 412 is inserted into the slit 3441 of the second PCB 344, no additional fixing such as hooks is required. The second PCB 344 and the fixing member of the connector 400.

In addition, in the present invention, the first connection pin 442 and the third connection pin 444 have the same function, and the second connection pin 443 and the fourth connection pin 445 have the same function.

In addition, on the second PCB 344, the first pad portion 3442 and the third pad portion 3443 have the same function, and the second pad portion 3444 and the fourth pad portion 3445 have the same function.

Therefore, because the pads 3442 to 3445 are provided on both sides of the second PCB 344 and the second PCB 344 is inserted between the two connecting bodies 410, 420, as long as the pads on either side of the second PCB 344 The parts 3442 to 3445 are connected to the connecting pins 442 to 445, and the signal can be transmitted, so that the second PCB 344 and the connector 400 can be connected more accurately.

A wedge may be formed on the slit insertion protrusion 412 and an additional groove may be formed on the slit 3441 to accommodate the wedge, so as to more firmly combine the second PCB 344 and the connector 400.

Figure 17 is a perspective view of a handle body according to an embodiment of the present invention. Figure 18 The figure is a cross-sectional view showing the internal structure of the handle, Figure 19 is a cross-sectional view when the main PCB unit is coupled to the handle body, and Figure 20 is when the power PCB is placed on the support ribs and the main PCB unit is coupled to the handle The figure after the main body and figure 21 are when the handle cover and the operating unit are combined in the state shown in figure 20.

Figure 22 is a diagram when the handle unit according to an embodiment of the present invention is coupled to the main body after assembly.

The space 322 for accommodating the main PCB unit 340 may be defined in the handle body 332. The space 322 is a space generally defined in the second extension part 320.

The handle body 332 may include a support 324 that supports the main PCB unit 340.

The support 324 may include: a base 324a on which the main PCB unit 340 is placed; a first rib 324b to support the first PCB 342 on the base 324a; and a second rib 324c to support the second PCB 344 on the base 324a.

The ribs 324b, 324c may protrude upward from the base 324a.

Because of the first rib 324b and the second rib 324c, the main PCB unit 340 on the support 324 in Figure 16 cannot move left and right.

In addition, the first rib 324b and the second rib 324c guide the main PCB assembly inserted into the space 322 of the handle body 332.

The handle body 332 may further include a plurality of insertion holes 327 for inserting the light transmission part 364 of the PCB cover 360.

When inserted into the insertion hole 327, the light transmitting part 364 may be exposed to the outside of the handle 30. Therefore, the user can visually view the light from the light-emitting diodes 371, 372, and 373 through the light transmitting portion 364.

In this embodiment, because the light transmitting part 364 is inserted into the insertion hole 327, it is possible to prevent external moisture or dust from flowing into the main PCB 341 through the insertion hole 327.

The handle body 332 may further include a connector coupling part 325, and when the main PCB assembly is inserted into the space 322, the PCB connector 350 is coupled to the connector coupling part 325.

The connector coupling part 325 may include: a hole 325a for passing the coupling hook 357 of the PCB connector 350 through; and a hook locking rib 325b for locking the coupling hook 357 passing through the hole 325a.

Meanwhile, the power PCB 380 may include a first switch 382 and a second switch 384, used to receive operation instructions from the operation unit 390. Although not limited, the first switch 382 may receive instructions to turn on/off the suction motor 20, and the second switch 384 may receive instructions to control the suction strength of the suction motor 20.

The handle body 332 may further include supporting ribs 326 for supporting the power PCB 380. The support ribs 326 may extend downward from the connector coupling part 325.

The supporting rib 326 may include an inclined surface 326a so that the power PCB 380 may be configured at an angle. Therefore, when the power PCB 380 is supported by the inclined surface 326a, the first switch 382 and the second switch 384 are located at different heights.

When the main PCB unit 340 is coupled to the handle body 332, the supporting rib 326 is located between the first PCB 342 and the second PCB 344. The supporting ribs 326 are separated from the first PCB 342 and the second PCB 344 so as not to damage the main PCB 341 when the main PCB unit 340 is coupled.

The inclination angle of the inclined surface 326a of the support rib 326 may be the same as the inclined surfaces 343a, 345a of the extension portions 343, 345 of the PCB 342, 344.

Therefore, the inclined surfaces 343a, 345a of the PCBs 342, 344 and the inclined surfaces 326a of the support ribs 326 can support the power PCB 380.

Obviously, when the power PCB 380 is in contact with the inclined surface 326a of the support rib 326, the inclined surfaces 343a, 345a of the PCBs 342, 344 may be separated from the power PCB 380.

The handle body 332 may further include a fitting rib 326b passing through the power PCB 380 to prevent the power PCB 380 in contact with the inclined surface 326a of the support rib 326 in FIG. 15 from moving left and right. In addition, a slit 386 for passing the fitting rib 326b may be formed in the power PCB 380.

The fitting rib 326b may be formed at the lower portion of the supporting rib 326. When the power PCB 380 is placed on the inclined surface 326a of the supporting rib 326, the fitting rib 326b is fitted in the slit 386. Therefore, when the power PCB 380 is assembled, the power PCB 380 can be prevented from facing the inclined surface 326a of the supporting rib 326. Slide down.

The handle body 332 may further include a top stopper 328 for preventing the power PCB 380 on the support rib 326 from moving upward.

The handle body 332 may further include a fastening sleeve 329 for fastening the power PCB 380 to the supporting rib 326 using a fastening body (not shown in the figure) (for example, a screw).

The hole 381 for the fastening body to pass through can be shaped by the power PCB 380 become.

On the other hand, the operation unit 390 may include: a support frame 396 for coupling with the handle cover 334; and an operation button 391 combined with the support frame 396.

The operation button 391 may include: a first pressing part 392 for pressing the first switch 382; and a second pressing part 394 for pressing the second switch 384. That is, one operation button 391 may include two pressing parts 392 and 394.

According to the present invention, because the power PCB 380 is inclined and the first switch 382 and the second switch 384 are located at different heights, the user can hold the handle 30 and use one finger to push the first switch 382 by operating the operation button 391 Or the second switch 384. Accordingly, the user can operate the vacuum cleaner more conveniently.

The procedure of assembling the main PCB unit 340 and the power PCB 380 will be described below.

First, the PCB cover 360 is inserted into the space 322 of the handle body 332 so that the light transmission part 364 of the PCB cover 360 is inserted into the insertion hole 327 of the handle body 332.

The main PCB assembly is completed by connecting the first PCB 342 and the second PCB 344 through the PCB connector 350, and then the main PCB assembly is inserted into the space between the PCB cover 360 and the support 324 of the handle body 332.

When the main PCB assembly is inserted, the side portions 362 and 363 of the PCB cover 360 and the first rib 324b and the second rib 324c of the support 324 guide the main PCB assembly.

When the coupling hook 357 of the PCB connector 350 is locked to the hook locking rib 325b through the hook hole 325a when the main PCB assembly is inserted into the space 322 of the handle body 332, the coupling of the main PCB assembly is completed.

In this state, as shown in FIG. 20, the power PCB 380 is placed on the supporting ribs 326, and then, the power PCB 380 may be fixed to the handle body 332 by a fastening body.

The power PCB 380 is fixed to the handle body 332 at substantially the same height as the main PCB 341.

Next, in FIG. 21, the handle cover 334 is coupled to the handle body 332, and then the operating unit 390 may be coupled to the handle cover 334.

In addition, in FIG. 22, the handle unit 3 can be fixed to the main body 2 by aligning the handle unit 3 with the main body 2 and then sliding the handle unit 3 down.

According to the present invention, the main PCB 341 is divided into two PCBs and is inserted into the handle In the body 332, the size of the main PCB 341 can be reduced.

In particular, two PCBs are erected parallel to each other and inserted into the handle body, so the size of the main PCB unit 340 can be minimized.

In addition, when the main PCB assembly is inserted into the space 322 of the handle body 332 and the two PCBs are connected to the PCB connector 350, because the main PCB assembly can be coupled to the handle body 332, the two PCBs can be fixed to each other and the two PCBs The structure fixed to the handle body 332 is simple and the user can easily assemble it.

In addition, because the second PCB 344 is connected to the connector when the handle unit 3 is slid onto the main body 2, a procedure of connecting the second PCB 344 to the connector is not required.

340‧‧‧Main Printed Circuit Board Unit (Main PCB Unit 450)

341‧‧‧Main Printed Circuit Board (Main PCB)

342‧‧‧First Printed Circuit Board (First PCB)

344‧‧‧Second Printed Circuit Board (Second PCB)

350‧‧‧Printed Circuit Board Connector (PCB Connector)

360‧‧‧Printed Circuit Board Cover (PCB Cover)

380‧‧‧Power Printed Circuit Board (Power PCB)

Claims (18)

A vacuum cleaner including: a suction motor that generates suction; a suction unit that guides air and dust sucked by the suction generated by the suction motor; and a dust separation unit that is guided through the suction unit The dust is separated from the air; a main printed circuit board, which generates a control signal for the suction motor, and includes a first printed circuit board and a second printed circuit board that are separated from each other; a handle unit, which Accommodating the main printed circuit board; and a printed circuit board connector that connects the first printed circuit board and the second printed circuit board to each other and is coupled to the handle unit, wherein the printed circuit board connector uses the The first printed circuit board and the second printed circuit board are inserted into the handle unit in a state where the first printed circuit board is connected to the printed circuit board connector. According to the vacuum cleaner of claim 1, wherein the printed circuit board connector includes a coupling hook for coupling to the handle unit. The vacuum cleaner according to claim 2, wherein the handle unit includes a handle body, and the handle body includes: a space for accommodating the main printed circuit board and the printed circuit board connector; and a connection The connector coupling part is used to couple the coupling hook of the printed circuit board connector in the space. The vacuum cleaner according to claim 3, wherein when the first printed circuit board and the second printed circuit board are connected to the printed circuit board connector, the first printed circuit board and the second printed circuit board The plates are arranged parallel to each other. The vacuum cleaner according to claim 3, wherein the coupling hook of the printed circuit board connector is coupled to the connector coupling in a state where the first printed circuit board and the second printed circuit board are erected Department. According to the vacuum cleaner described in item 3 of the scope of patent application, wherein: The handle body further includes a support for supporting the main printed circuit board in the space, and the support includes: a base on which the main printed circuit board is placed; and a first rib supported on the base The first printed circuit board on the base; and a second rib supported on the second printed circuit board on the base. The vacuum cleaner according to claim 2, wherein the printed circuit board connector includes: a connector body having the coupling hook; a spacer extending from the connector body; and a plurality of couplings The connecting bumps protrude from both sides of the spacer to couple the first printed circuit board and the second printed circuit board. The vacuum cleaner according to claim 7, wherein, when the first printed circuit board and the second printed circuit board are coupled to the coupling bumps on both sides of the spacer, the connector body It is arranged on the top of the first printed circuit board and the second printed circuit board. According to the vacuum cleaner described in item 7 of the scope of patent application, the connector body includes a reinforcing rib for preventing damage to the coupling hook. According to the vacuum cleaner of claim 9, wherein a plurality of spacers are spaced apart from each other on the connector body, and the reinforcing rib connects one of the spacers and the coupling hook to each other. The vacuum cleaner according to claim 7, wherein any one of the first printed circuit board and the second printed circuit board includes a light emitting unit for emitting light, and the connector body includes one or more A light hole for the light from the light-emitting unit to pass through. The vacuum cleaner according to item 11 of the scope of patent application, further comprising: a printed circuit board cover covering the main printed circuit board and the printed circuit board connector, wherein the printed circuit board cover includes a light transmitting part, The light passing through the light holes passes through the light transmitting part. According to the vacuum cleaner described in item 12 of the scope of patent application, wherein: The printed circuit board cover includes: a top portion covering the printed circuit board connector; and a pair of side portions extending downward from both sides of the top portion, and the pair of side portions covering the side edges of the printed circuit board connector , A part of the first printed circuit board, and a part of the second printed circuit board. The vacuum cleaner according to claim 12, wherein the light transmission part protrudes from the printed circuit board cover, and the handle unit includes an insertion hole into which the light transmission part is inserted. The vacuum cleaner according to item 3 of the scope of patent application further includes: an operating unit provided on the handle unit; and a power printed circuit board connected to the main printed circuit board and receiving operating instructions from the operating unit, Wherein, the handle body includes a supporting rib for supporting the power printed circuit board at an angle. According to the vacuum cleaner described in item 15 of the scope of patent application, the power printed circuit board is fixed to the handle body at the same height as the main printed circuit board. According to the vacuum cleaner described in item 15 of the scope of patent application, the main printed circuit board supports the power printed circuit board arranged on the supporting rib. A vacuum cleaner includes: a suction motor that generates suction; a suction unit that guides air and dust sucked by the suction generated by the suction motor; and a main body that includes a dust separation unit from Dust is separated from the air guided through the suction unit; a main printed circuit board assembly that generates control commands for the suction motor, and the main printed circuit board assembly includes a plurality of printed circuit boards; a handle unit , The main printed circuit board assembly is coupled to the handle unit, wherein the handle unit includes: a first extension, a longitudinal axis of the suction unit passes through the first extension; and a second extension, Extend toward the main body above the first extension, When the main printed circuit board assembly is inserted into the second extension portion, the main printed circuit board assembly is coupled to the handle unit, and the printed circuit boards are located on a side that crosses a longitudinal direction of the second extension portion The printed circuit boards are spaced upward from each other, and the printed circuit boards are inserted into the second extension part in a direction parallel to the longitudinal direction of the second extension part.

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