CN109640771B

CN109640771B - Vacuum cleaner

Info

Publication number: CN109640771B
Application number: CN201780052137.3A
Authority: CN
Inventors: 黄弼载; 黄满泰; 黄正培; 成恩智; 李宅基
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2016-08-25
Filing date: 2017-06-20
Publication date: 2022-02-08
Anticipated expiration: 2037-06-20
Also published as: AU2020202998A1; JP6956172B2; CN114376440A; AU2017314597A1; CN109640771A; CN114376440B; KR102548261B1; RU2708268C1; EP3485777A1; EP3485777B1; TWI743111B; JP2019527593A; EP3485777A4; KR20180023774A; TW201806535A; AU2017314597B2; AU2020202998B2

Abstract

A vacuum cleaner according to an embodiment includes: a suction motor for generating suction; a suction portion for guiding air and dust sucked in by the suction generated by the suction motor; and a dust separation portion from A main PCB capable of generating control commands for the suction motor and including a first PCB and a second PCB spaced apart from each other; a handle portion capable of accommodating the main PCB; and The PCB connector is coupled to the handle portion in a state where the first PCB and the second PCB are connected.

Description

Vacuum cleaner

Technical Field

This specification relates to a vacuum cleaner.

Background

The vacuum cleaner can be divided into: a manual cleaner for cleaning while a user directly moves the cleaner; an automatic dust collector which can automatically run and clean at the same time.

Also, the manual vacuum cleaner may be classified into a horizontal vacuum cleaner, an upright vacuum cleaner, a hand-held vacuum cleaner, a stick type vacuum cleaner, and the like, according to the shape of the vacuum cleaner.

A hand-held vacuum cleaner is disclosed in korean patent laid-open publication No. 10-1127088 (grant No. 3/8/2012).

The hand-held vacuum cleaner comprises a suction tube, an airflow generator, a centrifugal separation device, a power source and a handle.

A PCB (Printed Circuit Board) connected to the suction motor and the battery may be provided at the handle.

However, according to the prior art, since the airflow generator is located at the upper side of the handle and the power supply is located at the lower side, there is a problem that the internal space of the handle is narrow, and accordingly, there is a problem that the structure for installing the PCB becomes complicated and the work for installing the PCB becomes difficult.

Disclosure of Invention

Problems to be solved by the invention

The invention aims to provide a dust collector which can easily arrange a main PCB in a handle.

Also, an object of the present invention is to provide a vacuum cleaner capable of fixing a main PCB to a handle during introduction into the handle without using an additional fastening member for fixing the main PCB to the handle.

Further, it is an object of the present invention to provide a vacuum cleaner capable of reducing the size of a handle by reducing the size of a main PCB.

Technical scheme for solving problems

A vacuum cleaner according to an embodiment includes: a suction motor for generating a suction force; a suction part guiding air and dust sucked by a suction force generated by the suction motor; a dust separating part separating dust from the air guided by the suction part; a main PCB capable of generating a control command of the suction motor and including a first PCB and a second PCB spaced apart from each other by a space; a handle portion capable of accommodating the main PCB; and a PCB connector coupled to the handle part in a state where the first PCB and the second PCB are connected.

A vacuum cleaner according to another embodiment includes: a suction motor for generating a suction force; a suction part guiding air and dust sucked by a suction force generated by the suction motor; a main body having a dust separating portion for separating dust from air sucked by the suction portion; a main PCB assembly capable of generating a control command of the suction motor and including a plurality of PCBs; and a handle part combined with the main PCB assembly, the handle part including: a first extension part for passing through a longitudinal axis of the suction part; a second extension part extending from an upper side of the first extension part toward the body, the main PCB assembly being combined with the handle part in a process of being received in the second extension part.

Effects of the invention

According to the proposed invention, since the main PCB is accommodated in the handle body in a state of being divided into two PCBs, there is an advantage in that the size of the main PCB can be reduced.

In particular, the two PCBs are accommodated in the handle body in a parallel state and a standing state, and thus there is an advantage in that the size of the main PCB unit can be minimized.

And, in a state that the two PCBs are connected to the PCB connector, the main PCB assembly can be combined with the handle body in a process of being inserted into the receiving space of the handle body. Therefore, there are advantages in that a structure for fixing the two PCBs to each other and a structure for fixing the two PCBs to the handle main body become simple, and an assembling process of a user becomes easy.

Drawings

Fig. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention.

Fig. 2 is a side view of a vacuum cleaner according to an embodiment of the present invention.

Fig. 3 is a plan view of a vacuum cleaner according to an embodiment of the present invention.

Fig. 4 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, as viewed from a lower side.

Fig. 5 is a longitudinal sectional view of a vacuum cleaner according to an embodiment of the present invention.

Fig. 6 is a diagram showing a state in which the handle portion is separated from the body of the embodiment of the present invention.

Fig. 7 is a perspective view of a handle portion of an embodiment of the present invention.

Fig. 8 is a perspective view of a main PCB unit of an embodiment of the present invention.

Fig. 9 is a front view of the main PCB unit of fig. 8.

Fig. 10 and 11 are exploded perspective views of the main PCB unit of fig. 8.

Fig. 12 is a perspective view of a PCB connector of the present invention.

Fig. 13 is a perspective view of a connector according to an embodiment of the present invention.

Fig. 14 is a top view of the connector of fig. 13.

Fig. 15 is a perspective view showing a state where a connector is connected to the main PCB unit.

Fig. 16 is a sectional view showing a state where the second PCB and the connector are connected.

FIG. 17 is a perspective view of a handle body of one embodiment of the present invention.

Fig. 18 is a sectional view showing the internal structure of the handle.

Fig. 19 is a sectional view of a state where the main PCB unit is coupled to the handle main body.

Fig. 20 is a view showing a state where the power PCB is seated on the support rib in a state where the main PCB unit is coupled to the handle main body.

Fig. 21 is a view showing a state where the handle cover and the operation part are combined in the state of fig. 20.

Fig. 22 is a diagram showing a state in which the handle portion is coupled to the main body in a state in which the assembly of the handle portion according to the embodiment of the present invention is completed.

Detailed Description

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying exemplary drawings. Note that, when reference numerals are given to constituent elements of respective drawings, the same reference numerals are used as much as possible for the same constituent elements even if they appear in different drawings. In describing the embodiments of the present invention, detailed descriptions thereof will be omitted when it is determined that specific descriptions of related known structures or functions hinder understanding of the embodiments of the present invention.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), and the like may be used. These terms are only used to distinguish one structural element from another structural element, and do not limit the nature, order, or sequence of the corresponding structural elements. When it is stated that a certain structural element is "connected", "coupled" or "coupled" to another structural element, the structural element may be directly connected or coupled to the other structural element, but it is also understood that another structural element may be "connected", "coupled" or "coupled" between the respective structural elements.

Fig. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, fig. 2 is a side view of the vacuum cleaner according to an embodiment of the present invention, fig. 3 is a plan view of the vacuum cleaner according to an embodiment of the present invention, fig. 4 is a perspective view of the vacuum cleaner according to an embodiment of the present invention as viewed from a lower side, and fig. 5 is a sectional view of the vacuum cleaner according to an embodiment of the present invention.

Referring to fig. 1 to 5, a cleaner 1 according to an embodiment of the present invention may include a body 2.

The cleaner 1 may further include a suction part 5 coupled to a front of the body 2. The suction part 5 may guide air containing dust to the body 2.

The vacuum cleaner 1 may further include a handle portion 3 coupled to the body 2. The handle portion 3 may be located on the opposite side of the body 2 from the suction portion 5.

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

The body 2 may include: a first body 10; a second body 12 located at an upper side of the first body 10. The first body 10 and the second body 12 may be directly coupled or may be indirectly coupled via an intermediate member.

Although not limited, the first body 10 and the second body 12 may be formed in a cylindrical shape.

Further, the upper and lower sides of the first and

second bodies

10 and 12 are formed with openings, respectively. That is, each of the

bodies

10, 12 may include upper and lower openings.

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

The body 2 may further include a dust separating portion for separating dust from air sucked through the suction portion 5.

For example, the dust separating part may include a first cyclone part 110 capable of separating dust by a cyclone (cyclone) flow. At this time, the first body 10 includes the first swirling portion 110.

The air and dust sucked through the suction part 5 spirally flow along the inner circumferential surface of the first swirling part 110.

The axis of the swirling flow of the first swirling portion 110 may extend in the vertical direction.

The dust separating part 10 may further include a second cyclone part 130, and the second cyclone part 130 may be used to separate dust from the air discharged from the first cyclone part 110 again. At this time, the second cyclone part 130 may be located inside the first cyclone part 110, so that the size of the dust separating part is minimized. The second swirling portion 130 may include a plurality of swirler bodies arranged in parallel.

As another example, the dust separating unit may include a single cyclone unit, and in this case, the axis of the cyclone flow may extend in the vertical direction.

The first body 10 functions as a dust bucket for storing dust separated from each of the

cyclone parts

110, 130. The body 2 may further include a main body cover 16 for opening and closing a lower side of the first main body 10. The body cover 16 can open and close the first body 10 by a rotational motion. The first body 10 may be provided with a button 18 for operating by rotating the body cover 16. The hinge 162 of the main body cover 16 may be combined with a hinge coupling part 620 provided to the battery case 60.

At least a portion of the second cyclone part 130 may be located within the first body 10.

A dust storage guide 124 may be disposed in the first body 10, and the dust storage guide 124 guides storage of the dust separated from the second cyclone part 130. The dust storage guide 124 may be coupled to a lower side of the second cyclone part 130 and contact an upper surface of the main body cover 16.

The dust storage guide 124 may divide a space inside the first body 10 into a first dust storage part 121 for storing dust separated from the first cyclone part 110 and a second dust storage part 123 for storing dust separated from the second cyclone part 130.

The inner 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 main body cover 16 can open and close the first dust storage part 121 and the second dust storage part 123 together.

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

The suction motor 20 may be located within the second body 12. Further, at least a portion of the suction motor 20 may be positioned at an upper side of the dust separating part. Thereby, the suction motor 20 is located above the first body 10.

The suction motor 20 may communicate with the discharge port of the second cyclone part 130.

To this end, the body 2 may further include: a discharge guide 28 connected to the second swirling portion 130; a flow guide 22 in communication with the discharge guide 28.

For example, the discharge guide 28 is located above the second swirling portion 130, and the flow guide 22 is located above the discharge guide 28.

Further, at least a portion of the suction motor 20 is located inside the flow guide 22.

Therefore, the axis of the swirling flow of the dust separating portion may pass through the suction motor 20.

When the suction motor 20 is positioned at the upper side of the second cyclone unit 130, the air discharged from the second cyclone unit 130 can directly flow toward the suction motor 20, and thus, a flow path between the dust separating unit and the suction motor 20 can be minimized.

The suction motor 20 may include an impeller (impeller)200 that performs a rotational action. The impeller 200 may be connected to a drive shaft (draft) 202. The drive shaft 202 is disposed to extend in the vertical direction.

An extension line of the driving shaft 202 (which may also be referred to as a rotation axis of the impeller 200) may pass through the first body 10. At this time, the rotation axis of the impeller 200 and the axis of the swirling flow generated by the first swirling portion 110 of the dust separating portion may be located on the same line.

According to the present invention, a path of the air discharged from the dust separating unit, that is, the air discharged upward from the second cyclone unit 130, toward the suction motor 20 is shortened, and a change in direction of the air is reduced, thereby reducing a flow loss of the air.

In the case where the flow loss of the air is reduced, the suction force can be increased, and the use time of the battery 40 for supplying power to the suction motor 20 can be increased.

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

The suction motor 20 may be accommodated in each of the motor housings 26 and 27, and the flow guide 22 may be disposed to surround the upper motor housing 26.

At least a portion of the flow guide 22 may be spaced from the upper motor housing 26. Also, at least a portion of the flow guide 22 may be spaced apart from the second body 12.

Thereby, the inner peripheral surface of the flow guide 22 and the outer peripheral surface of the upper motor case 26 form a first air flow path 232, and the outer peripheral surface of the flow guide 22 and the inner peripheral surface of the second body 12 form a second air flow path 234.

The air discharged from the second swirling portion 130 flows along the first air flow path 232 to the suction motor 20, and the air discharged from the suction motor 20 flows along the second air flow path 234 to be discharged to the outside. Thus, the second air flow path 234 functions as an exhaust flow path.

The handle portion 3 may include: a handle 30 for a user to hold; and a battery case 60 disposed below the handle 30.

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

When the direction is defined, the direction in which the suction unit 5 is located is the front direction and the direction in which the handle 30 is located is the rear direction with reference to the suction motor 20 in the vacuum cleaner 1.

The battery 40 may be positioned at the rear of the first body 10. Therefore, the suction motor 20 and the battery 40 may be arranged so as not to overlap in the vertical direction, and the arrangement heights thereof may be different.

According to the present invention as described above, since the suction motor 20 having a large weight is located in front of the handle 30 and the battery 40 having a large weight is located below the handle 30 with reference to the handle 30, the cleaner 1 can uniformly distribute the weight as a whole. When the user holds the handle 30 to perform cleaning, the user can be prevented from being excessively stressed on his wrist. That is, since the heavy structures are disposed at different heights in a dispersed manner on the front side and the rear side of the cleaner 1, the center of gravity of the cleaner 1 can be prevented from being shifted to one side.

Since the battery 40 is located below the handle 30 and the suction motor 20 is located in front of the handle 30, there is no structure above the handle 30. That is, the upper surface of the handle 30 forms a part of the appearance of the upper surface of the cleaner 1.

Therefore, it is possible to prevent: when the handle 30 is held and used, a structure of the cleaner 1 is in contact with an arm of a user.

The handle 30 may include: a first extension part 310 extending in an up-down direction and allowing a user to hold the first extension part 310; and a second extension part 320 extending from an upper side of the first extension part 310 toward the suction motor 20. At least a portion of the second extension 320 may extend in a horizontal direction.

In the present invention, the first extension 310 is a portion that can be gripped by a user (a portion that can be touched by the palm of the user), and may also be referred to as a grip.

The first extension part 310 may be provided with a movement restricting part 312, and the movement restricting part 312 may prevent a hand from moving in a longitudinal direction (vertical direction in fig. 2) of the first extension part 310 in a state where a user grips the first extension part 310. The movement restricting part 312 may extend from the first extending part 310 toward the suction part 5.

The movement restricting portion 312 is disposed to be spaced apart from the second extending portion 320. Therefore, in a state where the first extension portion 310 is gripped, some fingers are positioned above the movement restricting portion 312, and the remaining fingers are positioned below the movement restricting portion 312.

For example, the movement restricting part 312 may be located between the index finger and the middle finger.

According to such a configuration, the longitudinal axis a1 of the suction portion 5 can pass through the wrist of the user in a state where the user grips the first extension 310.

When the longitudinal axis a1 of the suction unit 5 passes through the wrist of the user, the longitudinal axis a1 of the suction unit 5 may be substantially aligned with the extending direction of the arm of the user in the state where the user has spread his arm. Therefore, in such a state, there may be an advantage in that the force required to be consumed by the user is minimized when the user pushes or pulls the cleaner 1 while holding the handle 30.

The handle 30 may include an operating portion 390. For example, the operation portion 390 may be located on an inclined surface formed on the second extension 320. An opening command and a closing command of the cleaner (suction motor) can be inputted through the operation unit 390. For example, the operation unit 390 may be configured to input an on command and an off command of the suction motor 20. In a state where the suction motor 20 is turned on, the suction force of the suction motor 20 can be adjusted by the operation unit 390.

The operation unit 390 may be disposed so as to face a user. The operation portion 390 may be located on the opposite side of the movement restricting portion 312 with respect to the handle 30.

The operation unit 390 is located at a position higher than the movement restricting unit 312. Therefore, the user can easily operate the operation portion 390 with the thumb while holding the first extension 310.

Further, since the operation unit 390 is located at a position away from the first extension portion 310, it is possible to prevent the operation unit 390 from being unintentionally operated when cleaning is performed with the first extension portion 310 being gripped.

The battery case 60 may be located at the lower side of the first extension 310.

The battery 40 may be detachably coupled to the battery case 60. For example, the battery 40 may be inserted into the battery case 60 from below the battery case 60.

The rear surface of the battery case 60 and the rear surface of the first extension 310 may form a continuous surface. Therefore, the battery case 60 and the first extension 310 may have an integral feeling.

In a state where the battery 40 is accommodated in the battery case 60, a lower surface of the battery 40 may be exposed to the outside. Therefore, when the cleaner 1 is placed on the ground, the battery 40 can be placed on the ground.

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

Further, since the lower surface of the battery 40 is exposed to the outside, the lower surface of the battery 40 can be directly in contact with the air outside the vacuum cleaner 1, and the cooling performance of the battery 40 can be improved.

The battery case 60 may further include a charging-stand connection terminal 628, and the charging-stand connection terminal 628 is used to charge the battery 40 in a state where the battery 40 is mounted in the battery case 60. If the vacuum cleaner 1 is mounted on a charging stand, not shown, the terminals of the charging stand can contact with the charging stand connection terminals 628.

The battery case 60 may be provided with a battery connection terminal 670, and the battery connection terminal 670 may be coupled to a battery terminal 490 provided in the battery 40 accommodated in the battery case 60. The battery connection terminal 670 may penetrate the upper side of the battery 40 and be coupled to the battery terminal 490.

In addition, referring to fig. 3, the cleaner 1 may further include a filter mechanism 50, the filter mechanism 50 having an air discharge opening 522 for discharging air passing through the suction motor 20. For example, the air outlet 522 may include a plurality of openings, and the plurality of openings may be arranged in a circumferential direction. Thus, the air discharge ports 522 may be arranged in a ring shape.

The filter mechanism 50 may be detachably coupled to the upper side of the body 2. The filter mechanism 50 may be detachably received in the second body 12.

In a state where the filter mechanism 50 is coupled to the body 2, a part of the filter mechanism 50 is positioned outside the second body 12. Thereby, a part of the filter mechanism 50 is introduced into the inside of the body 2 through the upper side opening of the body 2, and the other part protrudes to the outside of the body 2.

The height of the body 2 may be substantially the same as the height of the handle 30. Accordingly, since the filter mechanism 50 protrudes above the main body 2, the user can easily separate the filter mechanism 50 while holding the filter mechanism 50.

In a state where the filter mechanism 50 is coupled to the main body 2, the air outlet 522 is located above the filter mechanism 50. Thereby, the air discharged from the suction motor 20 is discharged upward of the main body 2.

According to the present embodiment, during cleaning by the vacuum cleaner 1, the air discharged from the air discharge opening 522 can be prevented from flowing toward the user side.

The body 2 may further include a pre-filter 29 for filtering air flowing into the suction motor 20. The pre-filter 29 may be located within the flow guide 22. Also, the pre-filter 29 is disposed in the upper motor housing 26 and may surround a portion of the upper motor housing 26. That is, the upper motor housing 26 may include a filter support portion for supporting the pre-filter 29.

Fig. 6 is a view showing a state in which the handle portion is separated from the body of the embodiment of the present invention, and fig. 7 is a perspective view of the handle portion of the embodiment of the present invention.

The handle portion 3 may include a handle body 332 and a handle cover 334 for covering the handle body 332.

The handle body 332 forms a portion of the first extension 310 and a portion of the second extension 320. The handle cover 334 forms the remainder of the first extension 310 and the remainder of the second extension 320.

That is, the handle body 332 and the handle cover 334 form the first extension 310 and the second extension 320 as the handle cover 334 is combined with the handle body 332.

The handle main body 332 not only forms the handle 30 but also may form the battery case 60.

The handle portion 3 may further include a body coupling portion 70 for coupling the handle portion 3 with the body 2. The body coupling part 70 may couple the handle 30 and the battery case 60.

The handle portion 3 may also include a main pcb unit 340 for controlling the suction motor 20.

As an example, the main PCB unit 340 may be introduced into an inner space of the second extension part 320.

The body 2 may further include a connector support part 136 for supporting the connector 400.

The connector 400 may be connected with the suction motor 20 provided in the body 2. Also, the connector 400 may be connected with the main PCB unit 340. The connector 400 transmits a control signal from the main PCB unit 340 to the suction motor 20. The connector 400 may include signal terminals for transferring control signals.

The body 2 may further include a separation prevention rib 136a that prevents the connector 400 from being separated toward the upper direction in a state where the connector 400 is supported by the connector support 136.

The separation preventing rib 136a is formed to be spaced apart from the connector support part 136. The connector 400 may be introduced into a space between the connector support part 136 and the separation preventing rib 136 a. As an example, the connector 400 may be slidably disposed on the connector support 136 in a horizontal direction.

For example, the connector support 136 and the separation preventing rib 136a may be provided to the second body 12.

The body 2 may include a body terminal 80, and the handle portion 3 may further include a handle terminal 90. The handle terminal 90 may be connected with the main PCB unit 340.

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

A plurality of body wires 141 and 142 may be connected to the body terminal 80. A plurality of the body wires 141, 142 may be connected to the body terminal 80 at a lower side of the body terminal 80.

In order to supply power to the suction motor 20, the plurality of body wires 141 and 142 may include a pair of first wires 141 connected to the suction motor 20 and a pair of second wires 142 connected to the suction part 5.

The plurality of body wires 141 and 142 may be introduced into the body 2 after passing through the filler 138 provided in the body 2.

According to the present embodiment, the signal terminal for transmitting the control signal and the control terminal for supplying the power are separated and disposed at respective positions in the body, whereby the size of the body terminal 80 can be prevented from becoming large.

The handle part 3 may include a main body coupling part 304 for coupling with the body 2, and the body 2 may include a handle coupling part 139a for coupling with the main body coupling part 304. The handle portion 3 is coupled to the body 2 in a sliding manner in the up-down direction by the main body coupling portion 304 and the handle coupling portion 139 a.

Further, the main PCB unit 340 may be connected with the connector 400 and the handle terminal 90 is connected with the body terminal 80 during the coupling of the handle part 3 with the body 2.

In addition, the handle portion 3 may further include a plurality of

handle wires

942, 944, 946. A plurality of the

handle wires

942, 944, 946 may be connected to the main PCB unit 340.

The main PCB unit 340 may be connected with the battery 40. Also, the main PCB unit 340 may receive an operation signal from the operation part 390. The main PCB unit 340 may supply power to the suction motor 20 and/or a suction part terminal (not shown) located at the suction part, or adjust the intensity of suction force of the suction motor 20, based on the inputted operation signal.

The plurality of

handle wires

942, 944, 946 may include: a first handle wire 942 connected to the handle terminal 90 for supplying power to the suction terminal; and a second handle wire 944 connected to the handle terminal 90 for supplying power to the suction motor 20.

If the handle terminal 90 is connected to the body terminal 80, the first handle wire 942 may be connected to the first body wire 141 provided to the body 2, and the second handle wire 944 may be connected to the second body wire 142 provided to the body 2.

The plurality of

handle wires

942, 944 and 946 may further include a terminal connection wire 946 connected to the charging-stand connection terminal 628.

The handle portion 3 may further include a wire guide 309 for guiding a position of each handle wire such that the plurality of

handle wires

942, 944, 946 are disposed in a state of not being twisted with each other.

Hereinafter, a structure and an assembling method of the main PCB unit 340 will be explained.

Hereinafter, the structure of the main PCB unit will be described in detail.

Fig. 8 is a perspective view of a main PCB unit of an embodiment of the present invention, fig. 9 is a front view of the main PCB unit of fig. 8, and fig. 10 and 11 are exploded perspective views of the main PCB unit of fig. 8. Fig. 12 is a perspective view of a PCB connector of the present invention.

Referring to fig. 8 to 12, the main PCB unit 340 of the present embodiment may include a main PCB 341.

In order to enable the main PCB 341 to be located in the space formed by the second extension 320, the main PCB 341 may be formed by being separated into a plurality of PCBs. 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 arranged side by side in a standing state. The first PCB 342 and the second PCB 344 may be disposed in a spaced apart manner in a horizontal direction.

Between the first PCB 342 and the second PCB 344, one or more connection terminals 348 for connecting the two

PCBs

342 and 344 to each other may be provided.

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

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

The PCB connector 350 may include a connector body 351, and the first PCB 342 and the second PCB 344 may be disposed at an upper side of 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 (spacers) 352 for maintaining the first and

second PCBs

342 and 344 in a spaced-apart state from each other.

At this time, one or more spacers 352 may protrude downward from the lower surface 351a of the connector body 351.

On both sides of one or more spacers 352, coupling protrusions 353 for coupling with the first PCB 342 and the second PCB 344 may be formed. In addition, a

protrusion coupling portion

346, 347 for coupling with the coupling protrusion 353 may be provided at each of the

PCBs

342, 344. The raised

engagement portions

346, 347 may be slots 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.

In a state where the coupling protrusion 353 of the PCB connector 350 is coupled to the

protrusion coupling part

346, 347 of each of the

PCBs

342, 344, in order to enable the connector body 351 to be seated on the upper surfaces of the first and

second PCBs

342 and 344, the width of one or more spacers 352 may be formed to be smaller than the width of the connector body 351.

One or more spacers 352 may be disposed at intervals from the width-direction ends 351b and 351c of the connector body 351.

In a state where the coupling projection 353 of the PCB connector 350 is coupled to the

projection coupling parts

346 and 347 of the

respective PCBs

342 and 344, if the connector body 351 is seated on the upper surfaces of the first and

second PCBs

342 and 344, there is an advantage in that the height of the main PCB unit 340 can be reduced.

Of course, the connector body 351 may be spaced apart from the upper surfaces of the first and

second PCBs

342 and 344 in a state where the coupling projection 353 of the PCB connector 350 is coupled to the

projection coupling parts

346 and 347 of the

PCBs

342 and 344.

In addition, in the case where one or more spacers 352 are disposed to be spaced apart from the width-direction ends 351b and 351c of the connector body 351, there is an advantage in that the width of the main PCB unit 340 can be reduced in a state where the coupling projection 353 of the PCB connector 350 is coupled to the

projection coupling parts

346 and 347 of the

PCBs

342 and 344.

In the case where the PCB connector 350 includes a plurality of spacers 352, the plurality of spacers 352 may be arranged at intervals along the length direction of the connector body 351.

The PCB connector 350 may include a coupling catch 357 for coupling with the handle main body 332.

At this time, the coupling hooks 357 may extend in a horizontal direction from the connector body 351.

In order to prevent the coupling hooks 357 from being broken during the coupling of the PCB connector 350 and the handle main body 332 by the coupling hooks 357, reinforcing ribs 354 may be provided on a lower surface 351a of the connector main body 351.

Although the reinforcing rib 354 is not limited, it protrudes from the lower surface 351a of the connector body 351 and enables the coupling hooks 357 to be coupled with one or more spacers 352.

It is assumed that, in the case where the PCB connector 350 includes a plurality of spacers 352, the reinforcing ribs 354 may connect the spacer 352, which is closest to the coupling hooks 357, among the plurality of spacers 352, with the coupling hooks 357.

A light emitting portion 370 for displaying the state of the vacuum cleaner 1 may be provided on one of the first PCB 342 and the second PCB 344.

As an example, fig. 11 shows a case where the light emitting unit 370 is provided on the second PCB 344. The light emitting part 370 may include one or more LEDs. As an example, fig. 11 shows a case where the light emitting unit 370 includes a plurality of

LEDs

371, 372, 373 arranged at intervals in a direction parallel to the longitudinal direction of the connector body 351.

Although not limited thereto, the remaining amount of the battery 40, the intensity of the suction force of the suction motor 20, and the like may be displayed by the plurality of

LEDs

371, 372, 373.

The connector body 351 may be provided with a plurality of light openings 355 through which light irradiated from the plurality of

LEDs

371, 372, 373 passes.

The plurality of light openings 355 may be disposed at intervals along a longitudinal direction of the connector body 351, and when the PCB connector 350 is connected to the

PCBs

342 and 344, the plurality of light openings 355 may be aligned with the plurality of

LEDs

371, 372 and 373.

In order to cause one or more spacers 352 to interfere with light irradiated from the plurality of

LEDs

371, 372, 373, one or more spacers 352 are located in a region between two adjacent light openings 375.

In this case, the spacer 352 functions as: not only does not interfere with light irradiated from each of the

LEDs

371, 372, 373 but also prevents mutual interference between light irradiated from two adjacent LEDs. That is, the spacer 352 functions to divide the paths of light emitted from two adjacent LEDs.

Each of the

PCBs

342, 344 may include an

extension

343, 345 for supporting a power PCB (power PCB) 380. The

extension parts

343, 345 may include

inclined surfaces

343a, 345a for supporting the power PCB (power PCB)380 to make the power PCB in an inclined state.

A first connection terminal 349 for connection with the power PCB 380 may be provided at one of the first PCB 342 and the second PCB 344.

As an example, fig. 11 shows a case where the first connection terminal 349 is located at the first extension 343 of the first PCB 342.

Either one of the first PCB 342 and the second PCB 344 may be connected to a connector 400 provided to the body 2.

Hereinafter, a case where the connector 400 is connected to the second PCB 344 will be described as an example.

The main PCB unit 340 may further include: a PCB cover 360 covering the

respective PCBs

342 and 344 and an upper side of the PCB connector 350.

The PCB cover 360 may include: an upper surface portion 361 covering an upper surface of the PCB connector 350; and a pair of

side surface portions

362 and 363 extending downward from both ends of the upper surface portion 361.

The pair of

side surface portions

362 and 363 covers not only the PCB connector 350 but also a portion of the upper side of each of the

PCBs

342 and 344.

The pair of

side surface portions

362 and 363 prevent the

PCBs

342 and 344 connected to the PCB connector 350 from moving horizontally in the handle 30.

The PCB cover 360 covers a plurality of light openings 355 of the connector body 351. In this case, a plurality of light-transmitting portions 364 may be provided on the PCB cover 360 in order to allow the light passing through the plurality of light openings 355 to pass through the PCB cover 360. The number of the light-transmitting portions 364 is the same as that of the light openings 355, and the light-transmitting portions are disposed so as to face the light openings 355.

The light-transmitting portions 364 may protrude upward from the upper surface portion 361 of the PCB cover 360.

In the PCB cover 360, the plurality of light-transmitting portions 364 may be formed to be at least transparent or translucent.

In addition, the second PCB 344 may include a plurality of contact pads (pads) for electrical connection with the connector.

A plurality of the contact pads may be respectively disposed on both faces of the second PCB 344.

The plurality of contact pads may include: one or more first pads 3442 disposed on the first surface 3440a of the second PCB 344; and a second gasket 3444 disposed at a distance from the first gasket 3442. For example, the first pad 3442 and the second pad 3444 are disposed at intervals in the horizontal direction.

Also, the plurality of contact pads may further include: one or more third pads 3443 provided on a second surface 3440b opposite to the first surface 3440a of the second PCB 344; and a fourth gasket 3445 disposed at a distance from the third gasket 3443. For example, the third pad 3443 and the fourth pad 3445 are disposed at an interval in the horizontal direction.

Further, the first pad 3442 and the third pad 3443 are disposed to face each other, and the second pad 3444 and the fourth pad 3445 are disposed to face each other on the second PCB 344.

At a position of the second PCB 344, a slit 3441 for coupling the second PCB 344 and the connector 400 may be provided.

The slit 3441 is located between the first pad 3442 and the second pad 3444. Therefore, the slit 3441 is also located between the third pad 3443 and the fourth pad 3445. The slit 3441 may be formed by cutting an end portion of the second PCB 344 formed by a plurality of the spacers.

Fig. 13 is a perspective view of a connector according to an embodiment of the present invention, fig. 14 is a plan view of the connector in fig. 13, fig. 15 is a perspective view showing a state where the connector is connected to a main PCB unit, and fig. 16 is a sectional view showing a state where a second PCB and the connector are connected.

Referring to fig. 13 to 16, the connector 400 of the present embodiment may include: a first connecting body 410; a second connecting body 420 spaced apart from the first connecting body 410; and a connecting body 430 for connecting the first connecting body 410 and the second connecting body 420.

The connecting body 430 may connect a lower side of the first connecting body 410 and a lower side of the second connecting body 420 in order to couple the second PCB 344 to the connector 400 from above to below the connector 400.

Accordingly, between the first connection body 410 and the second connection body 420, a PCB receiving space 450 for receiving the second PCB 344 is formed.

On a surface of the first connecting body 410 facing the second connecting body 420, one or more first connecting pins 442 and second connecting pins 443 spaced apart from the first connecting pins 442 may be provided. The first and second connection pins 442 and 443 may be arranged at intervals in a horizontal direction.

One or more third connection pins 444 and fourth connection pins 445 spaced apart from the third connection pins 444 may be provided on a surface 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 arranged at intervals in a horizontal direction.

The first connection pin 442 and the third connection pin 444 may be disposed to face each other at positions spaced apart from each other. The second connection pin 443 and the fourth connection pin 445 may be arranged to face each other at a position spaced apart from each other.

A portion of each of the connection pins 442 to 445 may be positioned inside each of the

connection bodies

410, 420, and another portion protrudes from each of the

connection bodies

410, 420 toward the PCB receiving space 450.

For example, each of the connection pins 442 to 445 may be an elastically deformable conductor, and each of the connection pins 442 to 445 may be moved in a direction of being drawn into the inside of each of the

connection bodies

410 and 420 by an external force in a state of being protruded from each of the

connection bodies

410 and 420.

Alternatively, the connection pins 442 to 445, which are conductive bodies, may be provided to the

connection bodies

410 and 420 so that the positions of the

connection bodies

410 and 420 are fixed.

A slit insertion protrusion 412 may be provided in the PCB receiving space 450, and the slit insertion protrusion 412 may be inserted into the slit 3441 of the second PCB 344.

The slit insertion projection 412 may be located at a region between the first connection pin 442 and the second connection pin 443. Therefore, the slit insertion projection 412 is located at a region between the third and fourth connection pins 444 and 445.

The slit insertion projection 412 may protrude from the connection body 430 toward the PCB receiving space 450. For example, the slit insertion projection 412 may protrude upward from the connection body 430.

Alternatively, the slit insertion projection 412 may be provided at either one of the respective connecting

bodies

410, 420 and protrude toward the other. Alternatively, the slit insertion projection 412 may couple the first coupling body 410 and the second coupling body 420.

A protrusion seating portion 414 may be provided at any one of the first and second connecting

bodies

410 and 420, and the separation preventing rib 136a illustrated in fig. 6 is seated at the protrusion seating portion 414. As an example, fig. 13 shows a case where the projection placing portion 414 is provided to the first connecting body 410.

In addition, the second PCB 344 may be received in the PCB receiving space 450 from above the connector 400 toward below.

The slit insertion protrusion 412 can be inserted into the slit 3441 of the second PCB 344 during the process that the second PCB 344 is received in the PCB receiving space 450.

As described above, the state in which the slit insertion projection 412 is received in the slit 3441 of the second PCB 344 is a state in which the second PCB 344 is normally connected to the connector 400.

In this state, as shown in fig. 16, each of the pads 3442 to 3445 is in contact with each of the connection pins 442 to 445 at a position.

According to the present invention, since the slit insertion projections 412 are received in the slits 3441 of the second PCB 344 to bring the respective pads 3442 to 3445 into contact with the respective connection pins 442 to 445, there is an advantage in that erroneous assembly between the second PCB 344 and the connector 400 can be prevented.

Also, by preventing the erroneous assembly between the second PCB 344 and the connector 400, it is possible to prevent the occurrence of a short circuit due to the connection of two adjacent pads by one connection pin.

According to the present invention, the second PCB 344 is inserted between the two connecting

bodies

410, 420, and the slit insertion projection 412 is received in the slit 3441 of the second PCB 344, thus having an advantage that an additional fixing means such as a hook for fixing the second PCB 344 and the connector 400 is not required.

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

Also, in the second PCB 344, the first pad 3442 and the third pad 3443 play the same role, and the second pad 3444 and the fourth pad 3445 play the same role.

Therefore, 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 and 420, so that signals can be transmitted as long as the pads 3442 to 3445 of one of the pads 3442 to 3445 of both sides of the second PCB 344 are connected to the connecting pins 442 to 445, thereby improving the connection accuracy between the second PCB 344 and the connector 400.

At this time, in order to improve the coupling force between the second PCB 344 and the connector 400, a wedge may be formed at the slit insertion protrusion 412, and an additional groove for coupling with the wedge may be formed at the slit 3441.

Fig. 17 is a perspective view of a handle main body according to an embodiment of the present invention, fig. 18 is a sectional view showing an internal structure of the handle, fig. 19 is a sectional view showing a state where a main PCB unit is coupled to the handle main body, fig. 20 is a view showing a state where a power PCB is seated on a support rib in the state where the main PCB unit is coupled to the handle main body, and fig. 21 is a view showing a state where a handle cover and an operating part are coupled in the state of fig. 20.

An accommodating space 322 for accommodating the main PCB unit 340 may be formed at the handle body 332. The receiving space 322 is substantially a space formed in the second extension 320.

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

The support 324 may include: a seating surface 324a for seating the main PCB unit 340; a first rib 324b for supporting the first PCB 342 disposed at the seating surface 324 a; a second rib 324c for supporting the second PCB 344 disposed at the seating surface 324 a.

Each of the

ribs

324b, 324c may protrude upward from the seating surface 324 a.

The main PCB unit 340 supported by the supporter 324 can be prevented from moving in the left and right direction with reference to fig. 16 by the first and

second ribs

324b and 324 c.

The first and

second ribs

324b and 324c guide the introduction of the main PCB assembly in the process of accommodating the main PCB assembly in the accommodating space 322 of the handle main body 332.

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

In a state where the plurality of light-transmitting portions 364 are inserted into the plurality of insertion holes 327, the plurality of light-transmitting portions 364 may be exposed to the outside of the handle 30. Therefore, the user can visually confirm the light emitted from the

LEDs

371, 372, 373 by the light-transmitting portions 364.

In the case of this embodiment, since the plurality of light-transmitting portions 364 are inserted into the plurality of insertion holes 327, it is possible to prevent external moisture or impurities from moving to the main PCB 341 side through the plurality of insertion holes 327.

The handle body 332 may further include a connector coupling portion 325, and the connector coupling portion 325 is coupled with the PCB connector 350 during the main PCB assembly is received in the receiving space 322.

The connector coupling portion 325 may be provided with: a through hole 325a through which the coupling hook 357 of the PCB connector 350 passes; and a hook locking rib 325b to which a coupling hook 357 penetrating the through hole 325a is locked.

In addition, the power PCB 380 may include a first switch 382 and a second switch 384 for receiving an operation instruction from the operating part 390. Although not limited, the first switch 382 may receive an on command or an off command for the suction motor 20, and the second switch 384 may receive a command for adjusting the suction strength of the suction motor 20.

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

The support rib 326 may further include an inclined surface 326a, and the inclined surface 326a may be configured to arrange the power PCB 380 in an inclined state. Accordingly, in a state where the power PCB 380 is supported by the inclined surface 326a, the first switch 382 and the second switch 384 will have different heights.

If the main PCB unit 340 is coupled to the handle body 332, the support rib 326 will be located between the first PCB 342 and the second PCB 344. At this time, in order to prevent the main PCB 341 from being damaged by the support ribs 326 during the coupling of the main PCB units 340, the support ribs 326 are spaced apart from the first and

second PCBs

342 and 344, respectively.

The inclined surface 326a of the support rib 326 may have the same inclination angle as the

inclined surface

343a, 345a of the

extension

343, 345 of each

PCB

342, 344.

Accordingly, the

inclined surfaces

343a, 345a of the

respective PCBs

342, 344 and the inclined surface 326a of the support rib 326 may support the power PCB 380.

Of course, the

inclined surfaces

343a and 345a of the

PCBs

342 and 344 may be spaced apart from the power PCB 380 in a state where the power PCB 380 is in contact with the inclined surfaces 326a of the support ribs 326.

In order to prevent the power PCB 380 contacting the inclined surface 326a of the support rib 326 from moving in the left-right direction with reference to fig. 15, the handle body 332 may further include a catching rib 326b penetrating the power PCB 380. In addition, a slit 386 through which the sandwiching rib 326b passes may be formed in the power PCB 380.

The sandwiching rib 326b may be positioned at a lower side of the support rib 326. If the power PCB 380 is seated on the inclined surface 326a of the support rib 326, the clip rib 326b is inserted into the slit 386, and thus, the power PCB 380 can be prevented from sliding downward along the inclined surface 326a of the support rib 326 during the assembly of the power PCB 380.

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

The handle body 332 may further include a fastening boss 329, and the fastening boss 329 is fastened with the power PCB 380 disposed at the support rib 326 by a fastening member (not shown) such as a screw.

The power PCB 380 may have a through hole 381 for allowing the fastening member to pass therethrough.

In addition, the operating part 390 may include: a support frame 396 for being fastened to the handle cover 334; and an operation button 391 coupled to the support frame 396.

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

parts

392, 394.

In the case of the present invention, since the first switch 382 and the second switch 384 are disposed at different heights from each other and the power PCB 380 is formed to be inclined, the user can press the first switch 382 or the second switch 384 by pressing the operation button 391 with one finger in a state of holding the handle 30. Therefore, the operation convenience of the user can be improved.

Hereinafter, an assembling process of the main PCB unit 340 and the power PCB 380 will be explained.

First, in a state where the PCB cover 360 is introduced into the accommodating space 322 of the handle body 332, the light-transmitting portion 364 of the PCB cover 360 is inserted into the insertion hole 327 of the handle body 332.

In addition, the first PCB 342 and the second PCB 344 are connected by the PCB connector 350 to complete a main PCB assembly, and it is inserted into a space between the PCB cover 360 and the supporter 324 of the handle body 332.

During the insertion of the main PCB assembly, the pair of

side portions

362 and 363 of the PCB cover 360 and the first and

second ribs

324b and 324c of the supporter 324 guide the insertion of the main PCB assembly.

When the coupling hooks 357 of the PCB connector 350 penetrate the hook penetration holes 325a and are engaged with the hook engagement ribs 325b while the main PCB assembly is inserted into the accommodation space 322 of the handle main body 332, the assembly of the main PCB assembly is completed.

As shown in fig. 20, in this state, the power PCB 380 may be fixed to the handle main body 332 using a fastening member in a state where the power PCB 380 is seated on the support rib 326.

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

Next, as shown in fig. 21, after the handle cover 334 is coupled to the handle body 332, the operation unit 390 may be coupled to the handle cover 334.

As shown in fig. 22, after the handle 3 is aligned with the main body 2, the handle 3 may be fixed to the main body 2 by sliding the handle 3 downward.

According to the present invention, since the main PCB 341 is accommodated in the handle body 332 in a state of being divided into two PCBs, there is an advantage in that the size of the main PCB 341 can be reduced.

In particular, since the two PCBs are accommodated in the handle body in a parallel state and a standing state, there is an advantage in that the size of the main PCB unit 340 can be minimized.

In addition, since the main PCB assembly can be coupled to the handle body 332 while being inserted into the receiving space 322 of the handle body 332 in a state where two PCBs are connected to the PCB connector 350, the main PCB assembly includes: a structure for fixing the two PCBs to each other and a structure for fixing the two PCBs to the handle body 332 become simple, and an assembling process by a user becomes easy.

Further, since the second PCB 344 is connected to the connector while the handle portion 3 slides with respect to the body 2, there is an advantage that a process for connecting the second PCB 344 to the connector is not required.

Claims

1. A vacuum cleaner comprising:

suction motor for generating suction;

a suction part for guiding the air and dust sucked in by the suction force generated by the suction motor;

a main body including a dust separation part that separates dust from the air guided by the suction part, and the suction motor is accommodated in the main body;

a main printed circuit board capable of generating control commands for the suction motor, and including a first printed circuit board and a second printed circuit board spaced apart from each other;

a handle portion capable of receiving the main printed circuit board; and

a printed circuit board connector coupled to the handle portion in a state where the first printed circuit board and the second printed circuit board are connected,

The handle portion includes:

the first extension part, extending along the up-down direction;

a second extension extending from the upper side of the first extension toward the suction motor in the body along the horizontal direction,

In a state where the first printed circuit board and the second printed circuit board are coupled to the printed circuit board connector, the printed circuit board connector, the first printed circuit board, and the second printed circuit board the circuit board is inserted into the second extension part of the handle part along the horizontal direction,

A light-emitting portion for irradiating light is provided on either of the first printed circuit board and the second printed circuit board,

The printed circuit board connector is provided with a light opening for passing the light irradiated from the light emitting portion,

The second extension portion is provided with a light-transmitting portion for allowing the light passing through the light opening to pass therethrough.

2. The vacuum cleaner of claim 1, wherein,

The printed circuit board connector includes a coupling hook for coupling with the handle portion.

3. The vacuum cleaner of claim 2, wherein,

The handle portion includes a handle body,

The handle body has:

an accommodating space for accommodating the main printed circuit board and the printed circuit board connector;

The connector coupling part is coupled with the coupling hook of the printed circuit board connector accommodated in the accommodating space.

4. The vacuum cleaner of claim 3, wherein,

The first printed circuit board and the second printed circuit board are arranged in parallel in a state where the first printed circuit board and the second printed circuit board are connected to the printed circuit board connector.

5. The vacuum cleaner of claim 3, wherein,

When the first printed circuit board and the second printed circuit board are placed vertically, the coupling hook of the printed circuit board connector is coupled with the connector coupling portion.

6. The vacuum cleaner of claim 3, wherein,

The handle body further includes a support for supporting the main printed circuit board accommodated in the accommodating space,

The support includes:

a mounting surface for mounting the main printed circuit board;

a first rib, supporting the first printed circuit board mounted on the mounting surface;

A second rib supports the second printed circuit board mounted on the mounting surface.

7. The vacuum cleaner of claim 2, wherein,

The printed circuit board connector includes:

The connector body is provided with the coupling hook;

a spacer extending from the connector body; and

Combining protrusions protrude from both sides of the spacer and are respectively combined with the first printed circuit board and the second printed circuit board.

8. The vacuum cleaner of claim 7, wherein,

In a state in which the first printed circuit board and the second printed circuit board on both sides of the spacer are coupled to the coupling protrusions, the connector body is placed on the first printed circuit board and the second printed circuit board. The upper surface of the two printed circuit boards.

9. The vacuum cleaner of claim 7, wherein,

The connector body is provided with a reinforcing rib for preventing damage to the coupling hook.

10. The vacuum cleaner of claim 9, wherein,

A plurality of spacers are arranged on the connector body in a spaced manner,

The reinforcing rib connects one of the spacers and the coupling hook.

11. The vacuum cleaner of claim 7, wherein,

The light opening is disposed on the connector body.

12. The vacuum cleaner of claim 11, wherein,

Also included is a printed circuit board cover that covers the main printed circuit board and the printed circuit board connector,

The light-transmitting portion is disposed on the printed circuit board cover.

13. The vacuum cleaner of claim 12, wherein

The printed circuit board cover includes:

an upper surface portion covering the printed circuit board connector; and

a pair of side parts extending downward from both ends of the upper surface part,

A pair of the side portions cover the side surfaces of the printed circuit board connector, a portion of the first printed circuit board, and a portion of the second printed circuit board.

14. The vacuum cleaner of claim 12, wherein

the light-transmitting portion protrudes from the printed circuit board cover,

The second extension portion includes an insertion hole into which the light-transmitting portion is inserted.

15. The vacuum cleaner of claim 3, further comprising:

an operation part, arranged on the handle part;

a power printed circuit board, connected to the main printed circuit board, and used for receiving an operation command of the operation part,

The handle body further includes a support rib for supporting the power supply printed circuit board in an inclined state.

16. The vacuum cleaner of claim 15, wherein,

The power printed circuit board is fixed to the handle body at the same height as the main printed circuit board.

17. The vacuum cleaner of claim 15, wherein,

The main printed circuit board supports the power printed circuit board mounted on the support ribs.

18. A vacuum cleaner comprising:

suction motor for generating suction;

a main body including a dust separation part for separating dust from the air sucked by the suction part, and the suction motor is accommodated in the main body;

a main printed circuit board assembly capable of generating control commands for the suction motor and including a plurality of printed circuit boards; and

a handle part, combined with the main printed circuit board assembly,

The handle portion includes:

a first extension part for passing through the longitudinal axis of the suction part;

the main printed circuit board assembly is combined with the handle part during the process of being accommodated in the second extension part,

A plurality of the printed circuit boards are spaced apart and parallel to each other in a direction intersecting with the extending direction of the second extending portion, and in a vertical state along a level parallel to the extending direction of the second extending portion The direction is inserted within the second extension.