KR101714181B1 - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner.
According to an aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body having a suction motor for generating a suction force; A suction unit communicating with the cleaner main body and sucking air and dust; And a battery assembly capable of supplying power to the suction motor, wherein the battery assembly includes a battery unit, a battery terminal, and a switch for connecting or disconnecting the battery unit and the battery terminal, The cleaner main body includes a switch operating portion for operating the switch when the battery assembly is mounted on the cleaner main body.

Description

Vacuum cleaner

The present specification relates to a vacuum cleaner.

Generally, a vacuum cleaner is a device for sucking dust-containing air using a suction force generated by a suction motor mounted inside a main body, and then filtering dust inside the main body.

Such a vacuum cleaner is divided into a manual vacuum cleaner and an automatic vacuum cleaner. The manual vacuum cleaner is a vacuum cleaner to be manually cleaned by the user, and the vacuum cleaner is a vacuum cleaner that performs cleaning while traveling on its own.

The manual cleaner can be distinguished by a canister type in which the suction nozzle is provided separately from the main body and connected by a connection pipe, and an upright type in which the suction nozzle is coupled to the main body.

Korean Patent Laid-Open Publication No. 10-2006-0118796 (published on November 24, 2006) discloses a power cord outlet of a vacuum cleaner.

The prior art has a nose drill assembly in the body, and by connecting the power cord to an outlet, the body can be powered.

In such a prior art document, since the vacuum cleaner is supplied with power by the nose drill assembly, the vacuum cleaner can move as much as the length of the cord wound on the nose drill assembly.

An object of the present invention is to provide a vacuum cleaner which is easy to move and generates a high suction force.

It is another object of the present invention to provide a vacuum cleaner in which charging and discharging are prevented while a battery assembly is separated from a cleaner main body.

According to an aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body having a suction motor for generating a suction force; A suction unit communicating with the cleaner main body and sucking air and dust; And a battery assembly capable of supplying power to the suction motor, wherein the battery assembly includes a battery unit, a battery terminal, and a switch for connecting or disconnecting the battery unit and the battery terminal, The cleaner main body includes a switch operating portion for operating the switch when the battery assembly is mounted on the cleaner main body.

When the battery assembly is mounted on the cleaner main body, the switch operating unit operates the switch, the switch connects the battery terminal to the battery unit, and when the battery assembly is detached from the cleaner body, The connection between the battery terminal and the battery unit can be disconnected.

The cleaner main body includes a body for supporting the battery assembly. The switch operating portion protrudes from the body. When the battery assembly is supported by the body, the switch can be inserted into the battery assembly to operate the switch.

The battery assembly may include a battery case that accommodates the battery unit, and the battery case may include a receiving portion in which the switch operating portion is received.

The switch may be installed in the battery case.

And a battery management unit for managing the voltage of the battery unit, wherein the switch can be installed in the battery management unit.

The cleaner main body may further include a main body terminal connected to the battery terminal.

The switch operating unit may be a main terminal connected to the battery terminal.

A portion of the housing of the main body terminal may be inserted into the battery assembly to operate the switch.

A portion of the switch may be exposed to a region where the battery terminal is located.

The battery unit may include a plurality of battery cells connected in series, and the battery assembly may further include a supporter mechanism for supporting the plurality of battery cells such that the plurality of battery cells are spaced apart from each other.

Wherein the supporter mechanism includes a first supporter for supporting one side of the plurality of battery cells and a second supporter for supporting the other side of the plurality of battery cells, wherein the first supporter and the second supporter comprise a plurality of The battery cells can be separated from each other while supporting the battery cells.

According to another aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body having a suction motor for generating a suction force; A suction unit communicating with the cleaner main body and sucking air and dust; And a battery assembly capable of supplying power to the suction motor, wherein the battery assembly includes a battery unit, a battery terminal, a switch for connecting or disconnecting the battery unit and the battery terminal, Wherein the battery management unit includes a main body terminal connected to the battery terminal, and the battery management unit turns on the switch when the battery terminal is connected to the main body terminal, The switch can be turned off.

According to the present invention, when the battery assembly is separated from the cleaner main body, the switch connecting the battery terminal and the battery unit is turned off, thereby preventing the battery assembly from being charged and discharged. Thus, even if the maximum charging voltage of the battery assembly is high, .

The battery assembly is made compact and the space occupied by the battery assembly is reduced.

In addition, since a plurality of cells of the battery unit are arranged in parallel in the battery case, they are separated from each other.

In addition, since different polarities of two cells of the battery unit are connected by conductors and each conductor is connected to the battery management system, there is an advantage that the voltage of each of a plurality of cells can be managed.

Further, since the contact rib of the motor housing, the cover guide of the battery case, and the body guide can prevent the movement of the battery assembly seated on the cleaner main body, separate fixing means for fixing the battery assembly to the cleaner main body There is an unnecessary advantage.

In addition, since the maximum voltage charged in the battery unit is 84.8 V or more, the current value required for operating the suction motor can be reduced, thereby simplifying the circuit configuration required for driving the suction motor. There is an advantage that the suction force of the vacuum cleaner is increased.

1 is a perspective view of a vacuum cleaner according to the present embodiment.
2 is an exploded perspective view of the vacuum cleaner according to the present embodiment.
3 is a block diagram showing a configuration of a vacuum cleaner according to the present embodiment.
4 is a view illustrating a state where the battery assembly according to the present embodiment is installed on the second body.
5 is a vertical sectional view of Fig.
6 is a circuit diagram of a battery assembly according to the present embodiment.
7 is a view illustrating a state in which a battery terminal of the battery assembly according to the present embodiment is separated from a main body terminal.
8 is a view showing the arrangement relationship between the motor housing and the battery assembly according to the present embodiment.
9 is a perspective view showing a battery assembly according to the present embodiment.
10 is a perspective view showing an assembly of a battery unit and a battery supporter.
11 is a perspective view showing a battery supporter according to the present embodiment.
FIG. 12 is a view showing the assembly of the battery unit and the battery supporter of FIG. 10 viewed from direction A. FIG.
FIG. 13 is a view showing the assembly of the battery unit and the battery supporter of FIG. 10 viewed from direction B. FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

FIG. 1 is a perspective view of a vacuum cleaner according to the present embodiment, FIG. 2 is an exploded perspective view of the vacuum cleaner according to the present embodiment, and FIG. 3 is a block diagram showing the construction of a vacuum cleaner according to the present embodiment.

1 to 3, the vacuum cleaner 1 according to the present embodiment includes a vacuum cleaner main body 10 having a suction motor 160 for generating a suction force, And a suction device 20 for guiding air.

The suction unit 20 includes a suction unit 21 for suctioning dust on the floor surface and a connection unit 22, 23, 24 for connecting the suction unit 21 to the cleaner main body 10 ).

The connection portions 22, 23 and 24 include an extension pipe 24 connected to the suction portion 21, a handle 22 connected to the extension pipe 24, And a suction hose 23 connected to the main body 10.

The vacuum cleaner 1 includes a dust separator (not shown) for separating dust and air from the suction device 20, a dust container 110 for storing dust separated from the dust separator, As shown in FIG. The dust container 110 may be detachably mounted on the cleaner body 10. The dust separator may be manufactured as a separate article from the dust container 110 or may form one module with the dust container 110.

The vacuum cleaner 1 includes a controller 150 for controlling the operation of the suction motor 160 and a battery assembly 120 for supplying power to operate the suction motor 160. [ A charger 140 for charging the battery assembly 120 and a power cord 30 detachably connected to the cleaner main body 10 for supplying commercial power to the cleaner main body 10, .

The power cord 30 may include a plug 31 connected to an outlet and a cord connector 32 connected to the vacuum cleaner main body 10. The cleaner main body 10 may include a main body connector 102 to which the cord connector 32 is connected.

The cleaner main body 10 may include a first body 101 and a second body 103 coupled to the lower side of the first body 101. The wheels 105 may be coupled to both sides of the second body 103.

The suction motor 160, the battery assembly 120, and the charger 140 may be installed in the second body 103. The suction motor 160 may be protected by a motor housing 162. That is, the suction motor 160 can be accommodated in the motor housing 162.

The battery assembly 120 may be positioned on the side of the motor housing 162, i.e., on the side of the suction motor 160, for space efficiency.

The suction motor 160 and the battery assembly 120 may be positioned between the plurality of wheels 105. [ The battery assembly 120 may be positioned between one of the plurality of wheels 105 and the suction motor 160. The charger 140 may be disposed at a position spaced apart from the battery assembly 120.

The dust container 110 may be detachably coupled to the first body 101. The main body connector 102 may be provided on the first body 101.

The battery assembly 120 may include one or more battery units 131 and 132. The one or more battery units 131 and 132 may include a plurality of battery cells. That is, a plurality of battery cells in this specification may be referred to as a battery unit.

 The plurality of battery cells may be a secondary battery that can be charged and discharged. The maximum DC voltage (sum of the voltages of a plurality of cells) charged in the one or more battery units 131 and 132 has a value exceeding 42.4 V as an example. For example, the maximum charging voltage of the battery units 131 and 132 may be 84.8 V or more.

The charger 140 performs a rectifying and smoothing operation to convert a commercial AC voltage into a DC voltage. The charger 140 supplies the converted DC voltage to the battery units 131 and 132. For example, the charger 140 converts a 220V commercial AC voltage to a DC voltage exceeding 42.4V and supplies the DC voltage to the battery units 131 and 132.

The charger 140 may include a transformer 141 for transforming the input AC voltage and an AC-DC converter 142 for converting the AC voltage output from the transformer 141 to a DC voltage. At this time, the DC voltage output from the AC-DC converter 142 may exceed 42.4V.

As another example, it is also possible for the transformer to transform the DC voltage output from the AC-DC converter. In this case, the DC voltage output from the transformer 141 may exceed 42.4V.

As another example, it is also possible that the charger 140 does not have a transformer and that the AC-DC converter 142 has a circuit for preventing DC voltage from being converted into an AC voltage. That is, the AC-DC converter 142 may be an insulated converter. In the present embodiment, a known configuration can be used for the AC-DC converter, and a detailed description thereof will be omitted.

In this embodiment, the suction motor 160 may be, for example, a BLDC motor. The maximum output of the suction motor 160 may be 600 W or more, for example.

When the voltage charged in the battery units 131 and 132 is 42.4 V or less, the current needs to be at least 14.15 A in order to operate the high-power suction motor 160. Therefore, the circuit configuration necessary for driving the suction motor 160 This is a complicated problem.

However, according to the present embodiment, since the maximum voltage charged in the battery units 131 and 132 is 84.8 V or more, the current required to operate the suction motor 160 may be less than about 7.1 A, There is an advantage that a circuit configuration necessary for driving the motor 160 is simplified.

According to this embodiment, since the DC voltage exceeding 42.4 V is output from the charger 140 and the maximum charging voltage of the battery units 131 and 132 is 84.8 V or more, the suction motor 160 outputs a high output So that the suction force of the vacuum cleaner 1 is increased, thereby improving cleaning performance.

The power cord 30 may be connected to the vacuum cleaner 1 only when the battery units 131 and 132 are charged and may be connected to the power cord 30 when the vacuum cleaner 1 is used for cleaning. Can be used separately from the vacuum cleaner (1), so that the degree of freedom of movement of the vacuum cleaner (1) is improved.

That is, since the vacuum cleaner 1 is not provided with a cord reel and is supplied with power from the battery units 131 and 132, the moving distance of the vacuum cleaner 1 is not limited, Since the vacuum cleaner 1 does not need to be moved while riding over the cord wound on the cord drill or organizing the cord in the process of moving the vacuum cleaner 1, there is an advantage of smooth movement.

In this embodiment, since the battery units 131 and 132 are electrically connected to the main body connector 102 and the maximum charging voltage of the battery units 131 and 132 is 84.8 V or more, The user may contact the main body connecting part 102, which may cause a safety problem for the user. In the present embodiment, since the charger 140 includes the transformer 141, the transformer 141 has an advantage of improving the safety of the user because it serves as an insulation.

The vacuum cleaner 1 may further include a user interface 170. The user interface 170 may receive an operation command of the vacuum cleaner 1 and may display operation information or status information of the vacuum cleaner 1.

The user interface 170 may be provided in at least one of the handle 22 and the main body 10. The user interface 170 may be provided integrally with the input unit and the display unit, or may include a separate input unit and a display unit.

The user can select the power on selection of the vacuum cleaner 1, the cleaning mode, the intensity of the suction force, and the like through the input unit. The display unit may display remaining amount information of at least the battery units 131 and 132.

The controller 150 may display information for informing that the battery unit 131 or 132 is required to be charged in the display unit when the remaining amount of the battery unit 131 or 132 reaches a reference value.

As another example, the display unit may display the remaining amount of the battery units 131 and 132 continuously or stepwise. For example, the display unit may display the remaining amount of the battery units 131 and 132 in numbers, symbols, or graphs. Alternatively, the display unit may include a plurality of light emitting units, and may display the remaining amount of the battery units 131 and 132 at different numbers of light emitting units. Alternatively, the display unit may display the remaining amount of the battery units 131 and 132 by changing the color of light emitted from the light emitting unit.

4 is a vertical cross-sectional view of FIG. 4, FIG. 6 is a circuit diagram of a battery assembly according to an embodiment of the present invention, and FIG. 7 is a cross- FIG. 6 is a view illustrating a state where a battery terminal of a battery assembly according to an embodiment is separated from a main body terminal; FIG.

3 to 7, the battery assembly 120 may further include a battery case 121, 122 for receiving the batteries 131, 132.

The battery case 121 and 122 may include a first battery case 121 and a second battery case 122 coupled to the first battery case 121.

The battery case (121, 122) may be seated on the second body (103). The battery cases 121 and 122 may be formed into a substantially cylindrical shape. Since the battery cases 121 and 122 are formed in a substantially cylindrical shape, the space occupied by the battery cases 121 and 122 in the cleaner main body 10 can be minimized.

The first battery case 121 and the second battery case 122 may include one or more fastening bosses 123 for fastening the fastening members.

The battery case 121 and 122 may be provided with a plurality of cover guides 124 and 125 spaced apart from each other in the front-rear direction of the cleaner body 10. [ The second body 103 may be provided with a plurality of body guides 104 and 105 which are in contact with the plurality of cover guides 124 and 125.

It is minimized that the battery cases 121 and 122 are moved in the forward and backward directions of the cleaner main body 10 in a state where the plurality of cover guides 124 and 125 are in contact with the body guides 104 and 105 .

That is, the plurality of cover guides 124 and 125 may include a first cover guide 124 and a second cover guide 125 positioned behind the first cover guide 124.

The plurality of body guides 104 may include a first body guide 104 capable of contacting the front surface of the first cover guide 124 and a second body guide 104 contacting the rear surface of the second guide 125. [ (105). That is, the first cover guide 124 and the second cover guide 125 may be positioned between the first body guide 104 and the second body guide 105.

As another example, the first cover guide 124 may be received in the first body guide 104, and the second cover guide 125 may be received in the second body guide 105.

Alternatively, the cover guides 124 and 125 may be one or more grooves, and the cover guides 124 and 125 may be inserted into the at least one cover guide 124 and 125, respectively.

The battery case 121, 122 may include a plurality of support ribs 126 for supporting a battery supporter to be described later. Movement of the battery supporter can be prevented by the plurality of support ribs 126 without a separate fixing means in the battery case. Of course, it is also possible that the battery supporter is fastened to the battery case by the fastening member.

The battery assembly 120 may further include a battery management unit 139.

The battery management unit 139 manages each battery cell to maintain a constant voltage. That is, the battery management unit 139 causes the battery assembly 120 to emit a constant voltage.

The battery assembly 120 may include a battery terminal 202 and the main body 10 may include a main body terminal 106 to which the battery terminal 202 is connected. The battery terminal 202 may include an input / output terminal for charge / discharge current and a communication terminal for data communication.

The main body terminal 106 may be connected to the charger 140 or the controller 160. Although not limited thereto, the body terminal 106 may be provided on the second body 103.

When the battery assembly 120 is mounted on the second body 103, the battery terminal 202 may be connected to the body terminal 106. Alternatively, in a state where the battery assembly 120 is seated on the second body 103, a user may connect the battery terminal 202 with the body terminal. In this case, the main body terminal 106 may be fixed to the second body 103 and may not be fixed to the second body 103 in a state of being connected to a flexible wire.

The battery assembly 120 may include a switch 210 for connecting or disconnecting one end of the battery unit 131 or 132 and the battery terminal 202. The switch 210 may be a micro switch that can be turned on by an external force.

The switch 210 may be installed in the battery case 121 or 122 or may be installed in the battery management unit 139.

6, the switch 210 is provided between one end of the battery unit 131 and the positive electrode of the battery unit 131. Alternatively, the switch 210 may be provided between one end of the battery unit 131, It is also possible that the switch 210 is provided.

The cleaner main body 10 further includes a switch operating unit 108 for turning on the switch 210 by operating the switch 210 during the mounting of the battery assembly 120 to the cleaner main body 10 can do. The switch operating portion 108 may protrude from the second body 103, although not limited thereto.

The battery case 121, 122 may include a receiving portion 204 in which the switch operating portion 108 is received.

When the user moves the battery assembly 120 from above to below the second body 103 and places the plurality of cover guides 124 and 125 between the plurality of body guides 104 and 105, 108 is inserted into the accommodating portion 204 so that the switch operating portion 108 operates the switch 210 so that the switch 210 is turned on.

When the switch 210 is turned on, the battery unit 131, 132 and the battery terminal 202 may be electrically connected. When the battery units 131 and 132 and the battery terminal 202 are connected, charging or discharging is enabled.

7, when the battery terminal 202 and the main body terminal 106 are separated from each other (when the battery assembly is separated from the cleaner main body), the switch operating portion 108 is removed from the receiving portion 108, The external force for operating the switch 210 is removed and the switch 210 is turned off.

When the switch 210 is turned off, the connection between the battery units 131 and 132 and the battery terminal 202 is cut off, and charging and discharging are disabled.

According to the present embodiment, when the battery assembly is separated from the cleaner main body, the switch for connecting the battery terminal and the battery unit is turned off, so that the output current of the battery terminal is zero. Thus, even if the maximum charging voltage of the battery assembly is high, .

Further, since the switch operating portion is housed in the accommodating portion and operates the switch, it is possible to prevent the switch from being inadvertently operated when the battery assembly is detached from the cleaner main body.

8 is a view showing the arrangement relationship between the motor housing and the battery assembly according to the present embodiment.

Referring to FIG. 8, the motor housing 160 may include a contact rib 164 for contacting the upper side of the battery assembly 120.

The motor housing 162 may be coupled to the second body 103 while the battery assembly 120 is placed on the second body 103. [ When the motor housing 162 is coupled to the second body 103, the contact ribs 164 contact the upper side of the battery assembly 120. The contact rib 164 may press the battery assembly 120 downward while contacting the upper side of the battery assembly 120.

Since the contact rib 164 contacts the upper side of the battery assembly 120, the battery assembly 120 can be prevented from moving up and down.

The contact ribs 164 of the motor housing 162 and the cover guides 124 and 125 of the battery cases 121 and 122 and the body guides 104 and 105 serve as the battery assembly Since the movement of the battery assembly 120 can be prevented, a separate fixing means for fixing the battery assembly 120 to the second body 103 is unnecessary.

FIG. 9 is a perspective view showing a battery assembly according to the present embodiment, and FIG. 10 is a perspective view showing an assembly of a battery unit and a battery supporter. FIG. 9 shows a state in which the second battery case is removed for convenience of understanding.

9 and 10, the battery assembly 120 may include one or more battery units 131 and 132, and a plurality of battery supporter mechanisms for supporting the one or more battery units 131 and 132 have.

The one or more battery units 131 and 132 may include a first battery unit 131 and a second battery unit 132. The first battery unit 131 and the second battery unit 132 may be connected in series.

The plurality of battery supporter mechanisms may include a first supporter mechanism for supporting the first battery unit 131 and a second supporter mechanism for supporting the second battery unit 132. [

Each of the supporter mechanisms supports a plurality of cells constituting each of the battery units 131 and 132 together.

The first supporter mechanism includes a first supporter 133 for supporting one side of a plurality of cells of the first battery unit 131 and a second supporter 133 for supporting the other side of the plurality of cells of the first battery unit 131. [ 2 supporters 134. [ The first supporter 133 and the second supporter 134 may support the first battery unit 131 in a spaced-apart relationship. Therefore, heat generated during the discharge of the first battery unit 131 can be discharged through the first supporter 133 and the second supporter 134. [

The second supporter mechanism includes a third supporter 135 for supporting one side of the plurality of cells of the second battery unit 132 and a third supporter 135 for supporting the other side of the plurality of cells of the second battery unit 132. [ And may include a supporter 136.

The third supporter 135 and the second supporter 136 may support the second battery unit 132 in a spaced apart relationship. Accordingly, heat generated during the discharge of the second battery unit 132 may be discharged through the third supporter 135 and the second supporter 136. [

10, for example, the first and second supporters 133 and 134 simultaneously support ten cells of the first battery unit 131, and the third and fourth supporters 135 and 136 support the ten cells of the first battery unit 131, It is disclosed that the number of battery cells supported by the respective supporters is not limited in the present embodiment.

A plurality of battery cells of the battery units 131 and 132 may be arranged in a zigzag form while being supported by the supporters 133, 134, 135 and 136. That is, another battery cell may be located in a region corresponding to a region between two battery cells. As the plurality of battery cells are arranged in a zigzag manner as in the present embodiment, the space occupied by the plurality of battery cells can be minimized.

A plurality of conductors 138 for connecting the (+) pole of one of the battery cells and the (-) pole of the other battery cell are connected to each of the supporters 133, 134, 135, .

The plurality of conductors 138 may be welded to the respective battery cells. However, in the present embodiment, there is no limitation on the method of coupling the plurality of conductors 138 to the respective battery cells.

Each of the plurality of conductors 138 is connected to the battery management unit 139 by a wire 139a.

The battery management unit 139 may be installed in the battery case 121, 122.

FIG. 11 is a perspective view showing a battery supporter according to the present embodiment, FIG. 12 is a view showing the assembly of the battery unit and the battery supporter in a direction A, FIG. 13 is a cross- In the direction of the arrow B

11 shows a second supporter and a fourth supporter, wherein the first supporter is formed in a shape corresponding to the second supporter, the third supporter is formed in a shape corresponding to the fourth supporter, There is a difference in the shape of the holes to be positioned.

11 to 13, each of the supporters 133, 134, 135, and 136 includes a supporter body 131a covering a side surface of each battery cell, a supporter body 131a extending from the supporter body 131a, And a plurality of cell covers 131b having the same number as the number of cell covers 131b.

The plurality of cell covers 131b surround a part of each battery cell. A plurality of battery cells are separated from each other in a state where a plurality of cells are supported by the supporters 133, 134, 135, and 136 by the plurality of cell covers 131b. Accordingly, since the plurality of battery cells are supported by the supporters 133, 134, 135, and 136 in a state where they are spaced apart from each other, the heat generated from the plurality of battery cells can be effectively discharged into spaces between the battery cells .

The plurality of battery cells may be spaced apart from each other in a direction perpendicular to the longitudinal direction of the battery cells. In the present specification, the longitudinal direction of the battery cell is a direction connecting the (+) and (-) poles of the cell. That is, a plurality of battery cells are connected in series to the supporters 133, 134, 135, and 136, respectively. Therefore, according to the present embodiment, the battery assembly 120 can be made compact by arranging the plurality of battery cells in parallel.

The battery assembly 120 may be disposed such that the longitudinal direction of the plurality of battery cells between one of the plurality of wheels and the suction motor is parallel to the extending direction of the axis of the one of the wheels.

Two adjacent battery cells of the plurality of battery cells are disposed so that a direction of a first pole of one of the plurality of battery cells is opposite to a direction of a first pole of the other battery cell.

The supporter body 131a of each of the supporters 133, 134, 135 and 136 may be provided with a hole 131c through which the conductor 128 is positioned. The first supporter 133 is formed with two holes 131d and 131e in addition to the holes 131c corresponding to 1/2 of the number of battery cells installed in the first supporter 133. [

If the number of battery cells installed in the third supporter 133 in the third supporter 135 is m, a (1/2 * m) -1 hole 131c is formed in the third supporter 135, Two holes 131f and 131g are formed.

For example, when ten battery cells are supported by the first supporter 133, seven holes 131c, 131d and 131e may be formed in the first supporter 133. [ When 12 battery cells are supported by the third supporter 135, seven holes 131c, 131f and 131g are formed in the third supporter 135. [

At this time, the conductor 138a located in one of the two holes 131d and 131e formed in the first supporter 133 is connected to only one pole of the battery cell. The conductor 138b located in the other hole 131e of the two holes 131d and 131e formed in the first supporter 133 is electrically connected to the two holes 131f and 131g of the third supporter 135 And the conductor 138c positioned in any one of the holes 131f of the first through third holes 131f.

The conductor 138d located in the other hole 131g of the two holes 131f and 131g of the third supporter 135 is connected to only one pole of the battery cell.

10 and 11, the first pole of each battery cell is denoted by CnA, and the second pole thereof is denoted by CnB. In this case, n is a natural number.

And CnB is connected by C (n + 1) A and conductor 138. For example, the second pole (C1B) of the first cell is connected to the first pole (C2A) of the second cell by a conductor (138). However, the first pole C1A of the first battery cell and the second pole C22B of the last battery cell among the plurality of battery cells are respectively connected to one of the conductors 138a and 138d.

Therefore, according to the present embodiment, since the different poles of the two battery cells are connected by the conductors, and the respective conductors are connected to the battery management system, the voltage of each of the plurality of battery cells can be managed.

Although the battery case is described as covering the battery unit in the above embodiment, it is also possible to omit the battery case. In this case, the contact rib of the motor housing can come into contact with the upper side of the battery supporter. The cover guide described in FIG. 5 may be formed on the battery supporter.

As another example, the battery supporter may be integrally formed with the battery case. In this case, after a conductor is coupled to the battery supporter, a plurality of battery cells may be inserted into the battery supporter to contact the poles of the conductor and the battery cell. At this time, however, a protrusion for contacting the pole of the battery cell may be formed on the conductor for effective contact between the conductor and the battery cell.

In any case, the battery assembly may include a switch, which may be turned on during the mounting of the battery assembly.

In the above embodiment, the switch is described as being turned on by a mechanical operation as a micro switch. Alternatively, the switch may be an electronically controlled switch. In this case, the battery management unit can sense connection between the main body terminal and the battery terminal, and when the battery terminal is separated from the main body terminal, the battery management unit turns off the switch, The battery management unit can turn on the switch.

As another example, the switch operating portion may be removed and the housing of the main body terminal may serve as a switch operating portion. In this case, a part of the switch may be exposed to an area where the battery terminal is located, or a part of the body terminal may be inserted into the battery assembly to operate the switch.

Although a cleaner of the canister type has been described as an example of the cleaner in the above, it is clear that the idea of the present invention can also be applied to an upright cleaner.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Cleaner main body 30: Power cord
120: battery assembly 121: first battery case
122: second battery case 131: first battery unit
132: second battery unit 133: first supporter
134: second supporter 135: third supporter
136: Fourth supporter 140: Charger
150: controller 160: suction motor
202: battery terminal 210: switch

Claims (13)

A cleaner main body having a suction motor for generating a suction force;
A suction unit communicating with the cleaner main body and sucking air and dust; And
And a battery assembly capable of supplying power to the suction motor,
The battery assembly includes a battery unit, a battery terminal, a switch for connecting or disconnecting the battery unit and the battery terminal, and a battery case accommodating the battery unit,
Wherein the cleaner main body includes a body for supporting the battery assembly and a switch operation unit for operating the switch when the battery assembly is mounted on the cleaner main body,
The battery case is provided with a plurality of cover guides spaced back and forth,
The body is provided with a plurality of body guides,
Wherein when the plurality of cover guides are housed in the plurality of body guides, the battery assembly is mounted on the cleaner main body so that the switch operates.
The method according to claim 1,
When the battery assembly is mounted on the cleaner main body, the switch operating unit operates the switch, the switch connects the battery terminal and the battery unit,
Wherein when the battery assembly is detached from the cleaner main body, the switch disconnects the connection between the battery terminal and the battery unit.
The method according to claim 1,
Wherein the switch operating portion protrudes from the body,
Wherein when the battery assembly is mounted on the body, the battery assembly is inserted into the battery assembly to operate the switch.
The method of claim 3,
Wherein the battery case includes an accommodating portion in which the switch operating portion is accommodated.
5. The method of claim 4,
And the switch is installed in the battery case.
5. The method of claim 4,
Further comprising a battery management unit for managing the voltage of the battery unit,
And the switch is installed in the battery management unit.
The method of claim 3,
Wherein the vacuum cleaner body further comprises a main body terminal connected to the battery terminal.
The method according to claim 1,
Wherein the switch operating portion is a main body terminal connected to the battery terminal.
9. The method of claim 8,
And a part of the housing of the main body terminal is inserted into the battery assembly to operate the switch.
9. The method of claim 8,
And a portion of the switch is exposed to a region where the battery terminal is located.
The method according to claim 1,
Wherein the battery unit includes a plurality of battery cells connected in series,
Wherein the battery assembly further comprises a supporter mechanism for supporting the plurality of battery cells such that a plurality of battery cells are spaced apart from each other.
12. The method of claim 11,
The supporter mechanism includes a first supporter for supporting one side of the plurality of battery cells,
And a second supporter for supporting the other side of the plurality of battery cells,
Wherein the first supporter and the second supporter are separated from each other while supporting the plurality of battery cells.
A cleaner main body having a suction motor for generating a suction force;
A suction unit communicating with the cleaner main body and sucking air and dust; And
And a battery assembly capable of supplying power to the suction motor,
The battery assembly includes:
A battery pack comprising: a battery unit; a battery terminal; a switch for connecting or disconnecting the battery unit and the battery terminal; a battery management unit for controlling the switch; and a battery case accommodating the battery unit,
Wherein the cleaner main body includes a body for supporting the battery assembly, a switch operating part for operating the switch when the battery assembly is mounted on the cleaner main body, and a main body terminal connected to the battery terminal,
The battery case is provided with a plurality of cover guides spaced back and forth,
The body is provided with a plurality of body guides,
Wherein the battery management unit turns on the switch when the plurality of cover guides are accommodated in the plurality of body guides and the battery terminal is connected to the main body terminal,
Wherein the plurality of cover guides are spaced apart from the plurality of body guides to turn off the switch when the battery terminal is separated from the main body terminal.

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