Search

EP-4388958-B1 - VACUUM CLEANER

EP4388958B1EP 4388958 B1EP4388958 B1EP 4388958B1EP-4388958-B1

Inventors

  • Hwang, Philjae
  • HWANG, MANTAE
  • HWANG, JUNGBAE
  • SUNG, Eunji
  • LEE, Taekgi

Dates

Publication Date
20260506
Application Date
20170619

Claims (16)

  1. A battery comprising: a frame (410) that forms an external shape; a plurality of battery cells (430) received in the frame (410); a battery management unit (480) configured to manage a voltage of the plurality of battery cells (430) and including a circuit board (481), wherein the frame (410) comprises: a first frame (420); and a second frame (460) provided at a lower side of the first frame (420) and including a first coupling portion (470) and a second coupling portion (474), wherein the second frame (460) comprises: a first side surface; a second side surface that faces the first surface; a third side surface that connects one end of the first side surface to one end of the second side surface; and a fourth surface that connects another end of the first side surface to another end of the second side surface, and wherein the first coupling portion (470) is positioned at the first side surface and the second coupling portion (474) is positioned at the second side surface, wherein the battery further comprises an elastic member (473) configured to provide an elastic force to the first coupling portion (470) and received in the first coupling portion (470).
  2. The battery of claim 1, wherein the second side surface includes a curved surface.
  3. The battery of claim 1 or 2, wherein a length of the first side surface is less than a length of the third side surface and a length of the fourth side surface, and a distance between the first side surface and the second side surface is greater than a distance between the third side surface and the fourth side surface.
  4. The battery of any one of claims 1 to 3, wherein the first coupling portion (470) comprises a first hook (472) and the second coupling portion (474) comprises a second hook (476).
  5. The battery of any one of claims 1 to 4, wherein a number of battery cells adjacent to the first side surface among the plurality of battery cells (430) is greater than a number of battery cells (430) adjacent to the second side surface.
  6. The battery of claim 5, wherein two battery cells (430) are adjacent to the first side surface and one battery cell (430) is adjacent to the second side surface.
  7. The battery of any one of claims 1 to 6, wherein a number of battery cells (430) adjacent to the third side surface among the plurality of battery cells (430) is equal to a number of battery cells (430) adjacent to the fourth side surface.
  8. The battery of any one of claims 1 to 7, wherein a length of the second side surface is less than a length of the third side surface and a length of the fourth side surface, and a number of battery cells (430) adjacent to the second side surface among the plurality of battery cells (430) is less than a number of battery cells (430) adjacent to the third side surface or a number of battery cells (430) adjacent to the fourth side surface.
  9. The battery of any one of claims 1 to 8, wherein a protrusion (422) is formed on a top surface of the first frame (420), and the protrusion (422) is positioned at a side from a center of the first frame (420).
  10. The battery of any one of claims 1 to 9, wherein the second frame (460) further comprises a coupling body (479) protruded in a direction away from the second coupling portion (474), the first coupling portion (470) is coupled to the coupling body (479), and a portion of the elastic member (473) is received in the coupling body (479).
  11. The battery of any one of claims 1 to 10, wherein the second coupling portion (474) is integrally formed with the second frame (460) and configured to be elastically deformed by an external force.
  12. The battery of any one of claims 1 to 11, further comprising a battery holder (440) configured to support the plurality of battery cells (430).
  13. The battery of claim 12, wherein the battery holder (440) comprises: a first cell case (442a, 442b) that entirely surrounds an outer circumference of some of the plurality of battery cells (430), a second cell case (443a, 443b) that partially surrounds an outer circumference of another of the plurality of battery cells (430), and a third cell case (443c) that surrounds at least a portion of an outer circumference of a battery cell (430) adjacent to the second side surface.
  14. The battery of claim 12 or 13, wherein the battery holder (440) includes a separation wall (441); first holders (422) formed at an upper portion of the separation wall (441) and surrounding the upper portions of the battery cells (430) and second holders (445) formed at a lower portion of the separation wall (441) and surrounding the lower portions of the battery cells (430).
  15. The battery of any one of claims 1 to 14, further comprising a barrier (450) disposed between the battery management unit (480) and the plurality of battery cells (430), and wherein the battery management unit (480) is disposed above the plurality of battery cells (430).
  16. The battery of any one of claims 1 to 15, wherein the plurality of battery cells (430) is disposed in the frame (410) to be arranged in erected positions, and a battery terminal (490) is mounted on the circuit board (481) such that the battery terminal (490) extends upward from the circuit board (481).

Description

TECHNICAL FIELD The present invention relates to a battery. BACKGROUND ART Cleaners may be classified into a manual cleaner that a user moves in person for cleaning and an automatic cleaner that automatically moves for cleaning. Manual cleaners may fall into, depending on the types, a canister cleaner, an upright cleaner, a handy cleaner, and a stick cleaner. Meanwhile, in the related art, a handheld vacuum cleaner has been disclosed in Korean Patent No. 10-1127088 (registered on 8 March, 2012). The handheld vacuum cleaner includes a suction pipe, an airflow generator, a cyclone, a power supply, and a handle. The cyclone is disposed between the handle and the suction pipe, the airflow generator is disposed right over the handle, and the power supply is disposed right under the handle. Accordingly, the airflow generator and the power supply are disposed behind the cyclone. The power supply includes a plurality of battery cells laid in parallel. There is a problem in the prior art document in that it is required to disassemble the cleaner in order to separate the power supply from the cleaner. Further, since the battery cells are laid in parallel on one layer, there is a problem in that the volume occupied by the power supply is large and the maximum voltage that the power supply can supply to a suction motor is small. US 2014/272509 A1 relates to a water-resistant battery box for use with electronic faucets. The battery box includes a lower housing, a cover supported by the lower housing, and an upper housing positioned between the lower housing and the cover. The upper housing includes a lip seal cooperating with the lower housing to prevent water from leaking into the housing while permitting for internal pressure within the battery box to be relieved. US 2016/235267 A1 relates to a vacuum cleaner, a battery assembly and a charging stand. The battery assembly may include a plurality of battery cells, and a battery cover configured to support the plurality of battery cells. The battery cover may include a plurality of partition walls, and each of the plurality of partition walls forms a plurality of cell chambers that accommodate each of the plurality of battery cells, respectively, and at least a portion of the plurality of partition walls are spaced apart from each other to form at least one separation chamber. TECHNICAL PROBLEM It is an object of the present invention to allow a battery to be easily mounted in and separated from a cleaner. Another object of the present invention is to stably maintain contact between a battery terminal and a main body terminal even if the battery is frequently mounted and separated. Another object of the present invention is to prevent deformation of a circuit board on which a battery terminal is mounted when a battery is mounted and separated. These objects are achieved with the features of claim 1. The dependent claims define preferred embodiments of the invention. ADVANTAGEOUS EFFECTS According to the proposed embodiment, since it is possible to separate the battery from the battery housing, it is possible to independently charge only the battery on a cradle. Further, since the first contact portions and the second contact portions of the battery terminals that are in contact with the main body terminals are spaced from each other in the direction parallel with the coupling direction of the battery terminals and the main body terminals, reliability in contact with the battery terminals can be improved. Further, when the battery terminals are disposed on the circuit board of the battery management unit, the circuit board comes in contact with the anti-deformation ribs when the battery is mounted and separated, so deformation of the circuit board can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cleaner.FIG. 2 is a side view of the cleaner.FIG. 3 is a plan view of the cleaner.FIG. 4 is a perspective view of the cleaner when seen from under the cleaner.FIG. 5 is a vertical cross-sectional view of the cleaner.FIG. 6 is a view when a battery according to an embodiment of the present invention has been separated from a battery housing.FIG. 7 is a view when an inner housing according to an embodiment of the present invention has been separated from the battery housing.FIG. 8 is a view after the inner housing shown in FIG. 7 is coupled to the battery housing.FIG. 9 is a perspective view of the battery according to an embodiment of the present invention.FIG. 10 is a front view of the battery shown in FIG. 9.FIG. 11 is an exploded perspective view of the battery according to an embodiment of the present invention.FIG. 12 is a perspective view showing a battery holder of the present invention.FIG. 13 is a plan view of the battery holder shown in FIG. 12.FIG. 14 is a plan view of a second frame according to an embodiment of the present invention.FIG. 15 is a plan view after a battery holder and battery cells are seated inside the second frame.FI