Dust collector

Abstract

The present invention relates to a vacuum cleaner, comprising: a suction part in which a suction flow path through which air can flow is formed; the dust separation part is provided with at least one cyclone part; the suction motor is used for providing flowing force of air; a battery that supplies power to the suction motor; and a printed circuit board on which a plurality of elements are mounted, at least one surface of the printed circuit board being disposed so as to face the suction motor and the battery, respectively. Therefore, the effect of minimizing the wiring used for connecting the printed circuit substrate is achieved.

Description

Technical Field

[0001] This invention relates to a vacuum cleaner, and more specifically, to a vacuum cleaner that can save material costs by minimizing the wiring on the printed circuit board. Background Technology

[0002] A vacuum cleaner is a device that cleans by sucking up dust or foreign objects from an area to be cleaned or by wiping.

[0003] A vacuum cleaner, in order to provide the driving force to suck up dust, includes an impeller and a motor that rotates the impeller. The vacuum cleaner generates suction by expelling internal air to the outside through the motor's movement, thus reducing internal pressure. This suction force draws in dust and other foreign objects from the cleaning surface along with outside air. Both the outside air and the sucked-in foreign objects can then be removed by a dust collection device.

[0004] Vacuum cleaners can be classified according to their shape into canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, and stick vacuum cleaners.

[0005] On the other hand, the recent increase in demand for handheld vacuum cleaners has led to a continuous demand for miniaturization and weight reduction of electronic components built into vacuum cleaners, as well as increased motor rotation speed and increased inverter capacity to improve suction power.

[0006] Korean Patent Publication KR10-2021-0027810A discloses a motor drive device and a vacuum cleaner that include a printed circuit board on which a plurality of components are mounted.

[0007] In the aforementioned vacuum cleaner, the printed circuit board is disposed inside the main body housing for connection with the suction motor.

[0008] However, in order to place the printed circuit board inside the vacuum cleaner body, the size needs to be reduced. The multiple components installed must all be placed in a small printed circuit board, which results in higher integration and more severe heat generation.

[0009] In addition, with the printed circuit board located inside the main body cover and the battery attached to the outside of the main body cover, there is a problem that the required wiring length increases.

[0010] In particular, since the printed circuit board is located in the vacuum cleaner, it must be connected to a plurality of peripheral components that require electrical signals, thus creating a problem of increased wiring required to connect to the plurality of peripheral components.

[0011] Furthermore, as the printed circuit board and numerous surrounding components are connected by wiring, the wiring structure becomes more complex, requiring connector wiring, which generates resistance due to connector wiring and leads to reduced efficiency. In particular, as the wiring becomes longer and more complex, not only does the overall weight of the vacuum cleaner increase, raising costs, but the assembly process also becomes more complicated.

[0012] As a result, in the case of the aforementioned vacuum cleaners, the increased cost and weight due to complex wiring limit the product's competitiveness. Summary of the Invention

[0013] The problem the invention aims to solve

[0014] This invention was created to improve upon the problems of conventional vacuum cleaners as described above, and its object is to provide a vacuum cleaner that minimizes the wiring used to connect the printed circuit board. In particular, its object is to provide a vacuum cleaner that minimizes the wiring between the suction motor and the printed circuit board, as well as the wiring between the battery and the printed circuit board.

[0015] In addition, the aim is to provide a vacuum cleaner that can reduce the resistance caused by connector wiring, reduce the overall weight of the vacuum cleaner, and save costs.

[0016] In addition, the purpose is to provide a vacuum cleaner in which the printed circuit board is arranged in a long vertical direction between the main body cover and the handle cover, thereby ensuring sufficient area for mounting multiple components.

[0017] In addition, the objective is to provide a vacuum cleaner that, with its increased freedom in the configuration of multiple components mounted on a printed circuit board and reduced integration density, helps to eliminate the heat generated when the vacuum cleaner is started.

[0018] means for solving problems

[0019] To achieve the objectives described above, the vacuum cleaner of the present invention may include: a suction section having a suction flow path for airflow; a dust separation section having at least one cyclone section; a suction motor providing airflow power; a motor housing housing the suction motor and having an air outlet for air expelled through the suction motor; an air exhaust cover having an exhaust port for air expelled to the outside; an air guide forming a suction flow path for guiding air through the dust separation section to the suction motor and an exhaust flow path for guiding air through the suction motor to the exhaust port; a battery for powering the suction motor; and a printed circuit board having at least one side disposed opposite to the suction motor and the battery, the printed circuit board having a plurality of components mounted thereon.

[0020] The vacuum cleaner further includes: a main body cover, with the suction unit disposed on one side of the main body cover, and the dust separation unit and the suction motor disposed inside the main body cover; and a handle cover, which is attached to the main body cover and provides a handle, and the battery is detachably attached to the handle cover; the printed circuit board is disposed along the vertical direction of the main body cover, with the upper end of the printed circuit board disposed opposite to the suction motor, and the lower end of the printed circuit board disposed opposite to the battery.

[0021] The handle cover may be provided with a mounting portion, which accommodates and fixes the printed circuit board in the main body joint portion that is combined with the main body cover.

[0022] The main body cover may be provided with at least one substrate support portion, which protrudes from the outer peripheral surface of the main body cover toward the printed circuit board to place and fix the printed circuit board.

[0023] The main body cover is characterized in that the suction motor is disposed inside the main body cover and the printed circuit board is disposed outside the main body cover.

[0024] The feature is that the printed circuit board may be equipped with a battery connection element for assembling and electrically connecting the battery, and a motor connection element for electrically connecting the suction motor.

[0025] The feature is that the printed circuit board can have the battery connection element mounted on one side and the motor connection element mounted on the other side.

[0026] The feature is that the battery connection element and the motor connection element can be mounted on one side of the printed circuit board.

[0027] The characteristic feature is that, in the printed circuit board, the suction motor can contact and connect to the motor connection element.

[0028] The characteristic feature is that, in the printed circuit board, the suction motor can be connected to the motor connection element via wiring.

[0029] The printed circuit board is characterized in that it can be arranged in a direction that intersects with the direction in which the suction portion is arranged.

[0030] Additionally, the vacuum cleaner is characterized by comprising: a main body housing, having: a suction section forming an airflow path; a dust separation section for separating dust from the air; and a suction motor for providing suction to the suction section; a handle housing, attached to the main body housing, detachably connected to a battery, the battery supplying power to the suction motor; and a printed circuit board electrically connected to the suction motor and the battery, respectively; the printed circuit board is disposed between the main body housing and the handle housing, and the printed circuit board is fixed to the main body housing or the handle housing.

[0031] Additionally, the vacuum cleaner may include: a suction section having an airflow path; a dust separation section for separating dust from the air drawn in by the suction section; a suction motor for generating suction for drawing in air by the suction section; a battery for powering the suction motor; and a printed circuit board disposed in a direction intersecting the direction in which the suction section is disposed, wherein the battery is electrically connected to one end of the printed circuit board and the suction motor is electrically connected to the other end of the printed circuit board.

[0032] Invention Effects

[0033] As described above, the vacuum cleaner according to the present invention has the effect of minimizing the wiring used to connect the printed circuit board, and in particular, minimizing the wiring between the suction motor and the printed circuit board, as well as the wiring between the battery and the printed circuit board.

[0034] Furthermore, by minimizing the wiring used to connect the printed circuit board, the resistance caused by connector wiring can be reduced, thus reducing the overall weight of the vacuum cleaner and saving costs. Moreover, compared to the past, the assembly process is simplified, making the setup and electrical connections of the printed circuit board easier.

[0035] Furthermore, with the printed circuit board elongated vertically between the main body cover and the handle cover, sufficient area is provided for mounting multiple components. This increases the flexibility in arranging the multiple components mounted on the printed circuit board, reduces integration density, and helps eliminate heat generated during vacuum cleaner startup. Attached Figure Description

[0036] Figure 1 This is a perspective view of a vacuum cleaner according to an embodiment of the present invention.

[0037] Figure 2 This is a perspective view of the main body of a vacuum cleaner according to an embodiment of the present invention, viewed from another direction.

[0038] Figure 3 This is a cross-sectional view illustrating the internal structure of a vacuum cleaner according to an embodiment of the present invention.

[0039] Figure 4 This is a diagram illustrating the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to an embodiment of the present invention.

[0040] Figure 5 This is a perspective view showing the handle cover of a vacuum cleaner according to an embodiment of the present invention.

[0041] Figure 6 This is a perspective view showing the main body cover of a vacuum cleaner according to an embodiment of the present invention.

[0042] Figure 7 This is a perspective view of a printed circuit board of a vacuum cleaner according to an embodiment of the present invention.

[0043] Figure 8 This is a perspective view of the main body cover of a vacuum cleaner according to another embodiment of the present invention.

[0044] Figure 9 This is a diagram illustrating the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to another embodiment of the present invention.

[0045] Figure 10 This is a diagram illustrating the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to another embodiment of the present invention.

[0046] Figure 11 This is a block diagram illustrating the control of a vacuum cleaner according to an embodiment of the present invention. Detailed Implementation

[0047] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0048] Various modifications and embodiments are possible in this invention, and specific embodiments will be shown in the accompanying drawings and described in detail in the description. This is not intended to limit the invention to specific implementations, but should be interpreted to include all modifications, equivalents, and substitutions within the spirit and scope of the invention.

[0049] The terminology used in this application is for illustrative purposes only and is not intended to limit the invention. Unless the context clearly indicates otherwise, singular expressions may include plural expressions.

[0050] Unless otherwise defined, all terms, including technical and scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Commonly used terms, such as those defined in dictionaries, may be interpreted as consistent with the meaning in the context of the relevant art and will not be interpreted in an ideal or excessive form unless expressly defined in this application.

[0051] Figure 1 This is a perspective view of a vacuum cleaner according to an embodiment of the present invention. Figure 2 This is a perspective view of the main body of a vacuum cleaner according to an embodiment of the present invention, viewed from another direction. Figure 3 This is a cross-sectional view illustrating the internal structure of a vacuum cleaner according to an embodiment of the present invention.

[0052] Reference Figures 1 to 3 According to an embodiment of the present invention, a vacuum cleaner 1 may include: a vacuum cleaner body 100, which is provided with a suction motor 142 for generating suction; a suction module 300 connected to the vacuum cleaner body 100 for sucking up air and foreign objects from the floor; and an extension tube 200 connecting the vacuum cleaner body 100 and the suction module 300.

[0053] The structure of the vacuum cleaner body 100 is described below.

[0054] On the other hand, in this instruction manual, "floor surface" can be understood not only as the floor surface of the living room or room, but also as a cleaning surface such as a carpet.

[0055] In another embodiment of the invention, the orientation can be defined with reference to the floor surface (lower side) where the dust bin 170 and the battery cover 180 are placed on the ground.

[0056] At this time, "front" can refer to the direction in which the suction unit 120 is arranged with reference to the suction motor 142, and "rear" can refer to the direction in which the handle 163 is arranged with reference to the suction motor 142. Furthermore, based on the view of the suction unit 120 from the suction motor 142, the direction on the right can be called the right side, and the direction on the left can be called the left side. Additionally, in one embodiment of the present invention, based on the floor surface (lower side) where the dustbin 170 and battery cover 180 are placed on the ground, the upper and lower sides can be defined along a direction perpendicular to the ground.

[0057] The vacuum cleaner 1 may include a vacuum cleaner body 100. The vacuum cleaner body 100 may have an internal flow path that guides the sucked-in air to be discharged to the outside.

[0058] Specifically, the vacuum cleaner body 100 may include a main body cover 110, a suction unit 120, a dust separation unit 130, a fan drive unit 140, an air exhaust cover 150, a handle cover 160, a dust bin 170, a battery cover 180, and a battery 190.

[0059] The main body cover 110 can form the appearance of the vacuum cleaner body 100. The main body cover 110 can provide space inside to accommodate the fan drive unit 140 and the pre-filter 145. For example, the main body cover 110 can be constructed in a cylindrical shape.

[0060] The suction section 120 can protrude outward from the main body cover 110. As an example, the suction section 120 can be formed in the shape of an internally open cylindrical tube. The suction section 120 can be combined with the extension tube 200. The suction section 120 can provide a flow path P1 through which air, including dust, can flow.

[0061] The dust separation section 130 is connected to the suction section 120 to separate the dust sucked into the vacuum cleaner body 100 through the suction section 120, and is constructed using the principle of a centrifugal dust collector. The internal space of the dust separation section 130 can communicate with the internal space of the dust bin 170.

[0062] For example, the dust separation section 130 may be provided with at least one cyclone section capable of separating dust through cyclone flow. Furthermore, the internal space of the dust separation section 130 may communicate with the flow path P2 formed in the suction section 120. Therefore, air and dust drawn in through the suction section 120 can flow spirally along the inner circumferential surface of the dust separation section 130. Thus, cyclone flow can be generated within the internal space of the dust separation section 130.

[0063] The fan drive unit 140 can be configured in the flow path to generate a flow force that moves the air in the flow path.

[0064] The fan drive unit 140 may include an impeller 141 and an intake motor 142 that rotates the impeller 141.

[0065] Impeller 141 can be disposed above suction motor 142. The shaft of suction motor 142 can be inserted into the center of impeller 141, and the center of impeller 141 and the shaft of suction motor 142 can be configured to be coaxial. In this case, the shaft of suction motor 142 can be fixed to the center of impeller 141. With this configuration, if suction motor 142 is driven, the shaft of suction motor 142 and impeller 141 rotate together, generating airflow. In this case, the shaft of suction motor 142 can be disposed along the vertical direction of the main body cover 110, but is not limited to this configuration.

[0066] The suction motor 142 may include, for example, an annular stator, a shaft passing through the center of the stator, and a rotor disposed on the shaft and generating rotational force through the stator. On the other hand, although the suction motor 142 in this embodiment uses a BLDC motor (brushless direct current motor), it is not limited to this and various types of motors can be applied.

[0067] Such a suction motor 142 can operate by receiving power from the battery 190 (described later), and may be provided with a suction motor control board 142a. To control the operation of the suction motor 142, the suction motor control board 142a can input control signals to the suction motor 142, or supply power from the battery 190 to the suction motor 142. Such a suction motor control board 142a may include a plurality of switching elements, which can control the plurality of switching elements to input control signals to the suction motor 142, or supply power from the battery 190 to the suction motor 142. Here, the suction motor control board 142a may be an inverter.

[0068] Furthermore, the suction motor control board 142a can be connected to the printed circuit board 400 described later, either directly or via wiring 142b. In other words, the suction motor 142 can be connected to the printed circuit board 400 via connectors 142a and 142b, which can be formed by the suction motor control board 142a, or by the suction motor control board 142a and wiring 142b.

[0069] The motor housing 143 can accommodate the suction motor 142 and can support the bearing (not shown) located on the lower or upper part of the suction motor 142.

[0070] The sidewalls of the motor housing 143 can be formed in a cylindrical shape, and the stator of the suction motor 142 can be fixed on the inner surface of the sidewalls. Furthermore, with the suction motor 142 housed in the motor housing 143, a support bearing structure can be provided at the lower or upper part of the motor housing 143. Additionally, although not shown, components for generating airflow and diffusers for dispersing the generated airflow can also be provided at the lower or upper part of the motor housing 143.

[0071] On the other hand, an air outlet 147 may be formed on the upper or lower side of the motor housing 143. For example, the air outlet 147 may be formed as a hole with a predetermined width along the circumferential direction on the upper or lower side of the motor housing 143. That is, the air outlet 147 may be a hole formed in a region between a predetermined inner radius and a predetermined outer radius, centered on a predetermined midpoint of the upper or lower side of the motor housing 143. On the other hand, the air outlet 147 may be formed in a plurality of spaces at predetermined angular intervals. That is, the air outlet 147 may be an arc-shaped hole formed within a predetermined angular range centered on the midpoint, and the plurality of air outlets 147 may be formed in a nearly circular shape with the midpoint as the origin.

[0072] The impeller cover 144 may be configured to cover the upper part of the motor housing 143. An air intake 146, for example, is formed in the lower center or upper center of the impeller cover 144.

[0073] The fan drive unit 140 can draw in air through an air intake 146 located at the lower center or upper center of the impeller cover 144, and discharge air through an air outlet 147 located circumferentially on the upper or lower side of the motor housing 143. With this configuration, the air flowing within the fan drive unit 140 can effectively dissipate heat from the plurality of heat-generating elements mounted on the printed circuit board 400, which will be described later.

[0074] The vacuum cleaner 1 may include a pre-filter 145 to filter air before it is drawn into the suction motor 142. The pre-filter 145 may be configured, for example, to surround the impeller 141. Air in the suction flow path P3 can reach the impeller 141, for example, through the pre-filter 145. The pre-filter 145 may be disposed inside the vacuum cleaner body 100. Specifically, the pre-filter 145 may be disposed below or above the suction motor 142. That is, it may be disposed between the dust separation section 130 and the suction motor 142.

[0075] The vacuum cleaner body 100 may include an air guide 148 for guiding air flowing from the dust separation section 130. The air guide 148 may be disposed between the body cover 110 and the motor cover 143. The air guide 148 may form a suction flow path P3 that guides air from the dust separation section 130 to the impeller 141. The air guide 148 may also form an exhaust flow path P4 that guides air passing through the impeller 141 to the exhaust port 151.

[0076] Specifically, the air guide 148 may include an outer guide 148a and an inner guide 148b. The outer guide 148a may be integrated into the inner circumferential surface of the main body cover 110, and may form a space between it and the inner guide 148b, forming a wall for the intake flow path P3 through which air from the dust separation section 130 flows into the air intake port 146. The inner guide 148b may internally house the motor cover 143, forming a wall for the exhaust flow path P4 through which air from the air discharge port 147 is guided to the exhaust port 151.

[0077] At this time, as Figure 3 As shown, the intake flow path P3 and the exhaust flow path P4 can be formed at predetermined intervals along the periphery of the motor housing 143, with the motor housing 143 as the center. For example, three intake flow paths P3 and three exhaust flow paths P4 can be alternately formed along the periphery of the motor housing 143.

[0078] With this configuration, the air guide 148 can form flow paths P3 and P4, so that the air flowing out from the dust separation section 130 rises through the impeller 141 and then rises to the exhaust port 151.

[0079] Therefore, through the operation of the suction motor 142, the air and dust drawn in through the flow path P1 inside the suction section 120 can flow through the flow path P2 inside the dust separation section 130 and separate from each other. The air separated from dust in the dust separation section 130 can move upward and flow into the suction flow path P3 inside the fan drive section. The suction flow path P3 can guide the air to the pre-filter 145 side. The air that passes through the pre-filter 145 and impeller 141 in sequence can flow into the exhaust flow path P4, and after passing through the high-efficiency particulate air filter 153, it is discharged to the outside through the exhaust port 151.

[0080] On the other hand, the vacuum cleaner 1 of an embodiment of the present invention may include a printed circuit board (PCB) 400 for controlling the suction motor 142, the operation unit 164, the battery 190, etc. The PCB 400 may be equipped with a plurality of components, and the suction motor 142 and the battery 190 may be electrically connected. As an example, it may be formed extending from the location where the battery 190 is disposed to the location where the suction motor 142 is disposed, with both ends disposed adjacent to the battery 190 and the suction motor 142. The PCB 400 will be described in detail later.

[0081] The air exhaust cover 150 can form the upper appearance of the vacuum cleaner body 100 and can cover the upper part of the motor cover 143 and the impeller cover 144.

[0082] The air exhaust cover 150 can be configured on one side of the main body cover 110 in the axial direction.

[0083] The air exhaust cover 150 can form an exhaust port 151 through which air in the flow path is discharged to the outside of the vacuum cleaner body 100.

[0084] The exhaust port 151 can be configured to face a specific direction, for example. For example, a plurality of exhaust ports 151 can be separated from each other circumferentially by a plurality of exhaust guides 152. The plurality of exhaust ports 151 can be arranged at constant intervals circumferentially.

[0085] The air exhaust cover 150 may accommodate a filter for filtering air before it is discharged to the exhaust port 151. As an example, the air exhaust cover 150 may accommodate a high-efficiency particulate air (HEPA) filter 153.

[0086] Air drawn by the fan drive unit 140 can pass through the high-efficiency particulate air filter 153 and then be discharged to the outside through the exhaust port 151. The high-efficiency particulate air filter 153 can be configured in the exhaust flow path P4.

[0087] A filter housing space for accommodating a high-efficiency particulate air (HEPA) filter 153 can be formed in the air exhaust cover 150. The filter housing space is formed with a lower opening, and the HEPA filter 153 can be accommodated on the lower side of the air exhaust cover 150.

[0088] The exhaust port 151 can be configured to face the high-efficiency particulate air filter 153. For example, the high-efficiency particulate air filter 153 can be disposed on the underside of the exhaust port 151. The high-efficiency particulate air filter 153 can be disposed, for example, extending circumferentially along the exhaust port 151.

[0089] The dust bin 170 can be disposed on the lower side of the main body cover 110. The dust bin 170 can communicate with the dust separation section 130. The dust bin 170 can store the dust separated from the dust separation section 130.

[0090] The dust bin 170 may include a dust bin body 171.

[0091] The dust bin body 171 provides space for storing the dust separated in the dust separation section 130. As an example, the dust bin body 171 can be formed in a cylindrical shape.

[0092] As an example, the dustbin body 171 can be configured to have an openable lower side. In this case, a discharge cover 172 is provided on the lower side of the dustbin body 171, allowing the lower side of the dustbin body 171 to be selectively opened.

[0093] The discharge cover 172 can be configured to open and close the lower side of the dust bin body 171. The discharge cover 172 can be rotatably attached to the lower side of the dust bin body 171. The discharge cover 172 can be hinged to the dust bin body 171, and the lower side of the dust bin 170 can be opened and closed by rotation.

[0094] On the other hand, according to an embodiment, the dust bin 170 may also include a dust bin compression rod 173 and a compression member 174.

[0095] The dust collection bin compression rod 173 can be disposed outside the dust bin 170 or the dust separation section 130. The dust collection bin compression rod 173 can be vertically movable outside the dust bin 170 or the dust separation section 130. The dust collection bin compression rod 173 can be connected to the compression member 174. When the dust collection bin compression rod 173 moves downward by an external force, the compression member 174 can also move downward together. This provides convenience for the user. The compression member 174 and the dust collection bin compression rod 173 can be reset to their original positions by an elastic member (not shown). Specifically, when the external force applied to the dust collection bin compression rod 173 is removed, the elastic member can cause the dust collection bin compression rod 173 and the compression member 174 to move upward.

[0096] The compressor 174 can be disposed inside the dustbin body 171. The compressor 174 can move within the internal space of the dustbin body 171. Specifically, the compressor 174 can move vertically within the dustbin body 171. This allows the compressor to compress the dust within the dustbin body 171 downwards. Furthermore, when the discharge cap 172 is separated from the dustbin body 171 and the lower part of the dustbin 170 is open, the compressor 174 can move from the upper part of the dustbin 170 downwards, removing residual dust and other foreign matter from the dustbin 170. This improves the suction power of the vacuum cleaner by preventing dust from remaining in the dustbin 170. Furthermore, preventing residual dust from remaining in the dustbin 170 also eliminates odors caused by residue.

[0097] The battery cover 180 can accommodate the battery 190. The battery cover 180 can be detachably attached to the handle cover 160 and can be disposed on the lower side of the handle 163. In addition, the battery cover 180 can be detachably attached to the battery fastening part 165 formed in the second extension 163c, and can be configured to electrically connect the battery 190 to the printed circuit board 400.

[0098] As an example, the battery cover 180 can be a hexahedral shape with an open bottom. The back of the battery cover 180 can be connected to the handle 163. In this case, the battery cover 180 can include a receiving portion that opens downwards. With this configuration, the battery 190 can be installed and removed using the receiving portion of the battery cover 180.

[0099] As another example, the battery cover 180 can be integrally set up to house the battery 190.

[0100] The battery 190 is used to supply power to the vacuum cleaner 1. Specifically, the battery 190 can supply power to the suction motor 142, and to the electronic circuits and electronic components inside the vacuum cleaner 1. In addition, the battery 190 can supply power to the suction module 300.

[0101] With the battery 190 attached to the battery cover 180, the bottom surface of the battery 190 can be exposed to the outside. Since the battery 190 can be placed on the ground when the vacuum cleaner 1 is placed on the ground, the battery 190 can be immediately detached from the battery cover 180. In addition, since the bottom surface of the battery 190 is exposed to the outside and in direct contact with the outside air, the cooling performance of the battery 190 can be improved.

[0102] On the other hand, since the battery 190 is integrally fixed to the battery cover 180, the structure for installing and removing the battery 190 and the battery cover 180 can be reduced, thus reducing the overall size of the vacuum cleaner 1 and achieving weight reduction.

[0103] Additionally, the battery 190 can be detachably attached to the handle cover 160, and can be elongated in one direction, forming a cuboid shape with a long axis. As an example, as shown in the figure, the long axis of the battery 190 can be arranged in the front-to-back direction.

[0104] On the other hand, the vacuum cleaner 1 may include an extension tube 200.

[0105] The extension tube 200 can be combined with the vacuum cleaner body 100 and the suction module 300. One end of the extension tube 200 can be detachably combined with the suction section 120. Moreover, the other end of the extension tube 200 can be detachably combined with the suction module 300.

[0106] For example, the extension tube 200 can be formed in the shape of an elongated cylinder. Therefore, the internal space of the extension tube 200 can communicate with the internal space of the cleaning module 300. In addition, the extension tube 200 can communicate with the suction flow path formed in the suction section 120 of the vacuum cleaner body 100.

[0107] If suction is generated using the suction motor 142, suction can be supplied to the suction module 300 through the suction section 120 and the extension tube 200. Therefore, dust and air flowing into the vacuum cleaner body 100 through the cleaning module 300 and the extension tube 200 can pass through the vacuum cleaner body 100. Furthermore, dust and air flowing into the vacuum cleaner body 100 through the suction module 300 can flow into the vacuum cleaner body 100 after passing through the extension tube 200. Moreover, the dust and air flowing into the vacuum cleaner body 100 and passing through the suction section 120 can be separated in the dust separation section 130, with the dust stored in the dust bin 170 and the air discharged to the outside through the air exhaust cover 150.

[0108] The suction module 300 can move along the floor surface and suck up dust present on the floor. Additionally, the suction module 300 can be connected to the vacuum cleaner body 100 via the extension tube 200.

[0109] On the other hand, although not shown, the suction module 300 can be directly connected to the vacuum cleaner body 100 without the need for the extension tube 200.

[0110] Typically, in the vacuum cleaner body 100, if the suction motor 142 is located at the top, the battery 190 can be located at the bottom. Alternatively, in the vacuum cleaner body 100, if the suction motor 142 is located at the front, the battery 190 can be located at the rear; if the battery 190 is located on one side in the left-right direction, the suction motor 142 can be located on the other side in the left-right direction. That is, in the vacuum cleaner body 100, the suction motor 142 and the battery 190 can be arranged at a constant distance apart.

[0111] As a result, no matter where the printed circuit board 400 is located in the vacuum cleaner body 100, the wiring connecting the suction motor 142 and the battery 190 will become longer and more complicated.

[0112] Therefore, the purpose of the vacuum cleaner 1 of the present invention is to prevent the wiring between the suction motor 142, the printed circuit board 400 and the battery 190 from becoming longer and more complicated.

[0113] Figure 4 This is a diagram illustrating the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to an embodiment of the present invention.

[0114] Reference Figure 4 The printed circuit board 400 of an embodiment of the present invention is described below.

[0115] In the printed circuit board 400, the suction motor 142 and the battery 190 are each electrically connected. Thus, the suction motor 142 can receive power from the battery 190 to operate. Here, the printed circuit board 400 may be provided with wiring that is electrically connected to the suction motor 142 and the battery 190 respectively, and the printed circuit board 400 may be configured close to the suction motor 142 and the battery 190 to minimize wiring. Alternatively, the printed circuit board 400 may be in direct contact with and electrically connected to the suction motor 142 and the battery 190.

[0116] In addition, the printed circuit board 400 can be formed from the position where the suction motor 142 is disposed to the position where the suction motor 142 is disposed, thereby the printed circuit board 400 can be disposed elongatedly in a direction intersecting the length direction axis A1 of the suction section 120.

[0117] That is, the suction motor 142 and the battery 190 are preferably arranged on both sides of the suction section 120 connecting the extension tube 200 so that the weight of the vacuum cleaner body 100 is not biased to one side. Moreover, the printed circuit board 400 is arranged elongated along a direction that intersects the direction in which the suction section 120 is arranged, with both ends of the printed circuit board 400 adjacent to the suction motor 142 and the battery 190.

[0118] Alternatively, the printed circuit board 400 may be arranged elongated along a direction intersecting the long axis of the battery 190. Or, the printed circuit board 400 may be arranged elongated along a direction parallel to the short axis of the battery 190 and arranged adjacent to the battery 190.

[0119] Furthermore, at least one side of the printed circuit board 400 can be arranged opposite to the suction motor 142 and the battery 190, respectively. As an example, the suction motor 142 and the battery 190 can both face one side of the printed circuit board 400. As another example, the battery 190 can face one side of the printed circuit board 400, and the suction motor 142 can face the other side of the printed circuit board 400.

[0120] Alternatively, the printed circuit board 400 can be formed elongated in one direction, with one end of the board positioned opposite the battery 190 and the other end positioned opposite the suction motor 142.

[0121] Such a printed circuit board 400 can contact the battery 190 for direct electrical connection. As an example, the printed circuit board 400 may be equipped with a battery connection element 410. The battery connection element 410 allows the battery 190 to be attached and detached, and electrically connected to the printed circuit board 400. Such a battery connection element 410 may be mounted on at least one side of the printed circuit board 400.

[0122] The battery connection element 410 is configured to remain electrically connected to the battery 190 when the battery 190 is attached to the vacuum cleaner body 100. As an example, the battery connection element 410 may be provided with either a female connector or a male connector that is electrically connected upon contact, and the other of the female connector and male connector may be located on the battery 190. Thus, when the battery 190 is attached to the vacuum cleaner body 100, the battery connection element 410 can be electrically connected to the battery 190.

[0123] However, the battery connection element 410 can also be connected to the battery 190 via wiring. In order to reduce the length of the wiring, the printed circuit board 400 is arranged adjacent to the battery 190.

[0124] Furthermore, the printed circuit board 400 can contact and be electrically connected to the suction motor 142, or be connected to the suction motor 142 via wiring. As an example, the printed circuit board 400 may be equipped with a motor connection element 420 for electrical connection to the suction motor 142.

[0125] The motor connection element 420 can be combined with the suction motor control board 142a of the suction motor 142 to be electrically connected to the suction motor 142. As an example, the motor connection element 420 can be provided with either a female connector or a male connector for electrical connection upon contact, and the suction motor control board 142a can be provided with the other of the female connector and male connector. Alternatively, the motor connection element 420 can be connected to the suction motor control board 142a via wiring, and wiring connected to the suction motor control board 142a can be provided.

[0126] Here, in Figure 4 In the vacuum cleaner 1 of one embodiment shown, a battery connection element 410 can be mounted on one side of the printed circuit board 400, and a motor connection element 420 can be mounted on the other side of the printed circuit board 400. Furthermore, the axial direction of the suction motor 142 can be arranged parallel to the arrangement direction of the printed circuit board 400, and the suction motor control board 142a of the suction motor 142 can be connected to the motor connection element 420 via wiring 142b.

[0127] That is, the motor shaft of the suction motor 142 can be arranged in the vertical direction (axial direction of the main body cover), and the printed circuit board 400 can be arranged in a long vertical direction.

[0128] Furthermore, the printed circuit board 400 can be elongated along a direction perpendicular to the length axis A1 of the suction section 120, and the motor shaft of the suction motor 142 can be arranged perpendicular to the length axis A1 of the suction section 120 at a position adjacent to its other end. Moreover, at a position adjacent to one end of the printed circuit board 400, the battery 190 can be elongated along a direction parallel to the length axis A1 of the suction section 120, and the terminals of the battery 190 are in contact with the battery connection element 410 of the printed circuit board 400 for electrical connection.

[0129] In addition, the motor shaft of the suction motor 142 can be arranged perpendicular to the length direction axis A1 of the suction section 120, and the printed circuit board 400 can be arranged elongated along the direction perpendicular to the length direction axis A1 of the suction section 120.

[0130] As an example, the printed circuit board 400 can be disposed on the vacuum cleaner body 100 in a vertical direction. Furthermore, the upper end of the printed circuit board 400 can be disposed opposite to the suction motor 142, and the lower end of the printed circuit board 400 can be disposed opposite to the battery 190. Thus, the upper end of the printed circuit board 400 can be connected to the suction motor 142, and the lower end can be connected to the battery 190.

[0131] like Figures 5 to 8 As shown, such a printed circuit board 400 can be arranged vertically between the main body cover 110 and the handle cover 160.

[0132] Figure 5 This is a diagram illustrating the handle cover of a vacuum cleaner according to an embodiment of the present invention. Figure 6 This is a diagram illustrating the main body cover of a vacuum cleaner according to an embodiment of the present invention. Figure 7 This is a diagram illustrating the printed circuit board of a vacuum cleaner according to an embodiment of the present invention. Figure 8 This is a diagram of a printed circuit board for illustrating another embodiment of the vacuum cleaner of the present invention.

[0133] Reference Figures 5 to 8 The printed circuit board 400 can be disposed vertically on the vacuum cleaner body 100 and on the outside of the main body cover 110. That is, the main body cover 110 can have the suction motor 142 disposed inside and the printed circuit board 400 disposed outside. The printed circuit board 400 can be disposed vertically between the main body cover 110 and the handle cover 160.

[0134] The main body cover 110 may have a handle cover joint 111 at the rear. The handle cover joint 111 can be inserted into the inside of the main body joint 161 of the handle cover 160 and engage with the handle cover 160. Such a handle cover joint 111 can be formed by protruding outward from the main body cover 110 in the form of a rib and inserted into the inside of the main body joint 161.

[0135] The main body cover 110 may be provided with at least one substrate support portion 112 that protrudes rearward from the outer side and supports the front side of the printed circuit board 400. The substrate support portion 112 is formed by a plane whose protruding end face abuts against the printed circuit board 400, and is capable of supporting the printed circuit board 400.

[0136] The handle cover 160 can be combined with the main body cover 110 to provide a handle 163. Specifically, the handle cover 160 can be configured to include a main body connection portion 161, a handle 163, a first extension portion 163b, and a second extension portion 163c.

[0137] The main body connecting part 161 is a structure that is connected to the outside of the main body cover 110, and can be connected by inserting the handle cover connecting part 111 of the main body cover 110 inward.

[0138] Additionally, the main body connecting portion 161 may be provided with a mounting portion 162 for mounting and fixing the printed circuit board 400. The mounting portion 162 may be formed by a recess in the front part of the main body connecting portion 161 to provide a space corresponding to the printed circuit board 400. The printed circuit board 400 may be fixed in place in the mounting portion 162 using a connecting member (not shown) as a medium.

[0139] The handle 163 can be gripped by a user. The handle 163 can be positioned behind the suction motor 142. As an example, the handle 163 can be formed in a cylindrical shape. Alternatively, the handle 163 can be formed in a curved cylindrical shape. The handle 163 can be configured to form a predetermined angle with the main body cover 110, the suction motor 142, or the dust separation section 130.

[0140] The handle 163 may include a grip portion 163a formed in the shape of a column, so that the user can grip it.

[0141] The operation unit 164 can be disposed on the handle 163. The operation unit 164 can be disposed on the inclined surface formed in the upper region of the handle 163a. ​​The user can input the operation or stop command of the vacuum cleaner 1 through the operation unit 164.

[0142] Additionally, the handle 163 may include a first extension 163b connected to one end of the grip portion 163a along its length (axial direction) and extending toward the suction motor 142, and a second extension 163c connected to the other end of the grip portion 163a along its length (axial direction) and extending toward the dustbin 170. The first extension 163b and the second extension 163c may be integrally connected to the upper and lower ends of the main body connecting portion 161.

[0143] Thus, the handle 163 can form a space between the first extension 163b and the second extension 163c, allowing the user to easily grip the holding part 163a.

[0144] The top surface of the handle cover 160 can form part of the appearance of the top surface of the vacuum cleaner 1. Therefore, when the user holds the handle 163, it is possible to prevent a part of the vacuum cleaner 1 from coming into contact with the user's arm.

[0145] An auxiliary printed circuit board 401 may be disposed inside the first extension 163b. The auxiliary printed circuit board 401 may be electrically connected to the printed circuit board 400 to transmit the input of the operation unit 164 to the printed circuit board 400 or to provide power to the operation unit 164.

[0146] Additionally, the second extension 163c may be provided with a battery fastening part 165, allowing the battery to be detached and connected. As an example, the battery 190 may be arranged along the second extension 163c in the front-rear direction. Moreover, the battery 190 may be connected to the second extension 163c and electrically connected to the battery connection element 410 of the printed circuit board 400.

[0147] As an example, such as Figure 8 As shown, the printed circuit board 400 can be formed in the shape of an elongated plate along the vertical direction, with a motor connection element mounted on the upper end and a battery connection element mounted on the lower end.

[0148] Moreover, the printed circuit board 400 can be like Figures 5 to 6 As shown, it is fixed to the handle cover body 160, or as... Figure 8 It is fixed to the main body cover 110 as shown.

[0149] First, refer to Figures 5 to 6 The printed circuit board 400 can be fixed to the handle cover 160 after being placed in the mounting portion 162. Such a printed circuit board 400 can be fixed to the handle cover 160 with at least one connecting member (not shown) as a medium. Moreover, if the handle cover 160 is connected to the main cover 110, the printed circuit board 400 can be supported by the substrate support portion 112 of the main cover 110.

[0150] Moreover, refer to Figure 8 The printed circuit board 400 can be fixed to the main body cover 110 after being placed in the substrate support portion 112. Such a printed circuit board 400 can be fixed to the main body cover 110 with at least one connecting member (not shown) as a medium. Moreover, if the handle cover 160 is attached to the main body cover 110, the printed circuit board 400 can be supported by the mounting portion 162 of the handle cover 160.

[0151] on the other hand, Figure 9 This diagram illustrates the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to another embodiment of the present invention. Figure 10 This is a diagram illustrating the configuration of the suction motor, printed circuit board, and battery in a vacuum cleaner according to another embodiment of the present invention.

[0152] Reference Figure 9 The configuration structure of the suction motor 142, printed circuit board 400 and battery 190 in another embodiment of the present invention is described below.

[0153] The printed circuit board 400 may have a battery connection element 410 mounted on one side and a motor connection element 420 mounted on the other side. Furthermore, the axial direction of the suction motor 142 may be arranged intersecting the configuration direction of the printed circuit board 400, and the suction motor control board 142a of the suction motor 142 may contact and be electrically connected to the motor connection element 420. That is, in the suction motor 142, the suction motor control board 142a and the motor connection element 420 may be in physical contact and electrically connected to the printed circuit board 400, and are positioned adjacent to the end of the printed circuit board 400.

[0154] That is, the motor shaft of the suction motor 142 can be configured in the front-to-back direction.

[0155] In addition, the printed circuit board 400 can be arranged elongated along a direction intersecting the long axis of the battery 190.

[0156] Furthermore, with reference to the longitudinal axis A1 of the suction section 120, the battery 190 and the suction motor 142 can be configured to be parallel to the longitudinal axis A1 of the suction section 120 at positions adjacent to one end and the other end of the printed circuit board 400, respectively.

[0157] Reference Figure 10 The configuration structure of the suction motor 142, printed circuit board 400 and battery 190 in another embodiment of the present invention is described below.

[0158] The suction motor 142 and the battery 190 can be configured opposite to one side of the printed circuit board 400. Thus, the printed circuit board 400 can have a battery connection element 410 mounted on one side and a motor connection element 420 mounted on the other side. The wiring 142b connected to the suction motor 142 can be connected through the printed circuit board 400 to the motor connection element 420 mounted on the other side of the printed circuit board 400.

[0159] Alternatively, the printed circuit board 400 may have a battery connection element 410 and a motor connection element 420 mounted on one side, and the wiring 142b connected to the suction motor 142 may be connected to the motor connection element 420 mounted on one side of the printed circuit board 400, thereby minimizing the wiring 142b.

[0160] Furthermore, the axial direction of the suction motor 142 can be arranged intersecting the arrangement direction of the printed circuit board 400, and the impeller 141 can be arranged on one side of the axial direction of the suction motor 142, located between the suction motor 142 and the printed circuit board 400, or it can be arranged on the other side of the axial direction of the suction motor 142. In addition, the printed circuit board 400 can be arranged elongated along a direction intersecting the long axis of the battery 190.

[0161] Furthermore, with reference to the longitudinal axis A1 of the suction section 120, the battery 190 and the suction motor 142 can be configured to be parallel to the longitudinal axis A1 of the suction section 120 at positions adjacent to one end and the other end of the printed circuit board 400, respectively.

[0162] Figure 11 An internal block diagram of a motor drive device according to an embodiment of the present invention is shown.

[0163] Reference Figure 11 The motor drive unit 500 may include, for example, a power supply unit 510, a motor drive unit 520, a suction motor 142, an input unit 540, an output unit 550 and / or a control unit 560.

[0164] The power supply unit 510 can supply power to the motor drive unit 500.

[0165] The power supply unit 510 can, for example, convert AC power input from a commercial AC power source into DC power to supply power to the motor drive unit 500. For example, the power supply unit 510 may be equipped with a converter (not shown) to convert AC power into DC power.

[0166] The power supply unit 510 may be equipped with a battery 190 for storing DC power. For example, the power supply unit 510 may supply the DC power stored in the battery 190 as a power source for the motor drive device 500.

[0167] The power supply unit 510 can convert commercial AC power into DC power and store it in the battery 190.

[0168] The power supply unit 510 may also be provided with a DC terminal capacitor (not shown), which can store the DC power converted by the converter and / or the DC power supplied from the battery 190.

[0169] The motor drive unit 520 can drive the suction motor 142, for example. For example, the motor drive unit 520 can drive the suction motor 142 based on the power supplied from the power supply unit 510.

[0170] The motor drive unit 520 may be provided with a plurality of switching elements, and may include an inverter (not shown) that converts DC power into AC power of a specified frequency by switching the switching elements on / off. The AC power output from the inverter can be supplied to the intake motor 142. Here, the inverter may be the intake motor control board 142a.

[0171] The motor drive unit 520 may also include, for example, a current detection unit (not shown) for detecting the current flowing in each component of the motor drive device 500 and / or a voltage detection unit (not shown) for detecting the voltage applied to each component.

[0172] The current detection unit may include, for example, a current sensor, a current transformer (CT), a shunt resistor, etc., for detecting current, and the detected current may be input to the control unit 260.

[0173] The voltage detection unit may include, for example, a resistive element, an operational amplifier (op-amp), etc., for detecting voltage, and the detected voltage may be input to the control unit 560.

[0174] The suction motor 142 can be driven, for example, by a power supply from the motor drive unit 220.

[0175] The suction motor 142 can be driven, for example, by an AC power supply of a predetermined frequency supplied from the motor drive unit 220. For example, the operation of the suction motor 142 can be varied according to the magnitude and / or frequency of the power supply supplied from the motor drive unit 220.

[0176] The input unit 540 may be equipped with an input device (e.g., a button, a touch panel, etc.) capable of receiving user input. For example, the input unit 540 may include an operation unit 164, which includes a power button for turning the power on / off of the motor drive device 500, an operation button for setting the operation of the motor drive device 500, etc.

[0177] The input unit 540 can receive user input via an input device and can transmit instructions corresponding to the received user input to the control unit 560. For example, the control unit 560 can determine the operating mode of the motor drive device 500 based on the user input input through the input unit 540.

[0178] The output unit 550 may be equipped with a display device such as a monitor (not shown) or a light-emitting diode (LED). For example, the output unit 550 may display the on / off status of the power supply to the motor drive unit 500, the operating status based on the operating mode, and messages related to error generation.

[0179] The output unit 550 may also be equipped with audio devices such as speakers and buzzers. For example, the output unit 550 may output sound effects based on the on / off state of the power supply to the motor drive device 500, sound effects based on changes in the operating mode, and warning sounds for errors.

[0180] The control unit 560 can be connected to each component installed in the motor drive unit 500. The control unit 560 can send and receive signals between each component of the motor drive unit 500 and can control the overall operation of each component.

[0181] The control unit 560 may include a converter control unit (not shown) for controlling the operation of the converter and / or an inverter control unit (not shown) for controlling the operation of the inverter. According to embodiments of the present invention, the converter control unit and the inverter control unit may be included in the same configuration or may be included in separate configurations.

[0182] The control unit 560 can control the operation of the motor drive unit 520. For example, the control unit 560 can output a switching control signal for controlling the switching operation of the inverter included in the motor drive unit 520.

[0183] The control unit 560 can calculate the current flowing in the suction motor 142. For example, the control unit 560 can calculate the current flowing in the suction motor 142 through the current detection unit.

[0184] The control unit 560 can calculate the rotational speed of the suction motor 142. For example, the control unit 560 can calculate the rotational speed of the suction motor 142 based on the phase current flowing in the suction motor 142.

[0185] The control unit 560 can calculate the position of the rotor of the suction motor 142. For example, the control unit 560 can calculate the position of the rotor of the suction motor 142 based on the phase current flowing in the suction motor 142.

[0186] While the specific embodiments of the present invention have been described in detail above, this is for the purpose of illustrating the present invention. The present invention is not limited thereto. Obviously, those skilled in the art can modify or improve the present invention within the technical concept of the present invention.

[0187] Simple variations and modifications of this invention fall within the scope of this invention, and the specific scope of protection of this invention will become clear from the appended claims.

Claims

1. A vacuum cleaner, wherein, include: The intake section forms an intake flow path through which air can flow; The dust separation section is equipped with at least one cyclone section; The intake motor provides the airflow power; The main body has a suction unit on one side, and a dust separation unit and a suction motor are arranged inside the main body. The battery powers the suction motor; and A printed circuit board, at least one side of which is respectively disposed opposite to the suction motor and the battery, wherein a plurality of components are mounted on the printed circuit board.

2. The vacuum cleaner according to claim 1, characterized in that, It also includes a handle cover, which is attached to the main body and provides a handle, and the battery is detachably attached to the handle cover; The printed circuit board is arranged along the vertical direction of the main body cover, with its upper end facing the suction motor and its lower end facing the battery.

3. The vacuum cleaner according to claim 2, wherein, The handle cover is provided with: The main body joint is joined to the main body cover; and The mounting portion accommodates and fixes the printed circuit board in the main body joint portion.

4. The vacuum cleaner according to claim 1, wherein, The main body cover is provided with at least one substrate support portion, which protrudes from the outer peripheral surface of the main body cover toward the printed circuit board to place and fix the printed circuit board.

5. The vacuum cleaner according to claim 1, characterized in that, The suction motor is disposed inside the main body cover, and the printed circuit board is disposed outside the main body cover.

6. The vacuum cleaner according to claim 1, characterized in that, A battery connection element for assembling, removing and electrically connecting the battery is mounted on the printed circuit board, and a motor connection element for electrically connecting the suction motor is mounted on the printed circuit board.

7. The vacuum cleaner according to claim 6, characterized in that, The battery connection element is mounted on one side of the printed circuit board, and the motor connection element is mounted on the other side of the printed circuit board.

8. The vacuum cleaner according to claim 6, characterized in that, The battery connection element and the motor connection element are mounted on one side of the printed circuit board.

9. The vacuum cleaner according to claim 6, characterized in that, In the printed circuit board, the suction motor is in direct contact with and connected to the motor connection element.

10. The vacuum cleaner according to claim 6, characterized in that, In the printed circuit board, the suction motor is connected to the motor connection element via wiring.

11. The vacuum cleaner according to claim 1, characterized in that, The printed circuit board is arranged in a direction that intersects with the direction in which the suction portion is disposed.

12. A vacuum cleaner, characterized in that, include: The main body of the enclosure is equipped with: an intake section that forms an airflow path; and a dust separation section that separates dust from the air. And an intake motor, which provides suction to the intake section; The handle cover is attached to the main body cover and is detachably connected to a battery, which supplies power to the suction motor. as well as A printed circuit board is electrically connected to the suction motor and the battery, respectively; The printed circuit board is disposed between the main body cover and the handle cover, and the printed circuit board is fixed to the main body cover or the handle cover.

13. A vacuum cleaner, wherein, include: The intake section forms an intake flow path through which air can flow; The dust separation unit separates dust from the air drawn in by the suction unit; An intake motor generates suction to draw in air using the intake section; The battery powers the suction motor; as well as A printed circuit board is arranged in a direction intersecting the direction in which the suction section is arranged. The battery is electrically connected to one end of the printed circuit board, and the suction motor is electrically connected to the other end of the printed circuit board.

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