Electric dust collector and air conditioner including the same

Patent metadata

Field	Value
Publication number	US-10464074-B2
Application number	US-201615338286-A
Country	US
Kind code	B2
Filing date	Oct 28, 2016
Priority date	Oct 30, 2015
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

The electric dust collector includes a dust collection unit for collecting electrified dust particles and a dust collection unit case for receiving the dust collection unit. The dust collection unit includes a plurality of films for generating an electric field and a fixing part for fixing the films in the dust collection unit case. Each of the films is formed in the shape of a band that is longer in the longitudinal direction than in the lateral direction, and the films are arranged so as to face each other such that gaps are formed between the respective films. The fixing part includes a gap maintenance part disposed on at least one side of a group of films in the lateral direction for maintaining the gaps. The gap maintenance part includes a plurality of vertical bars to be inserted into the gaps from the one side of the group of films.

First claim

What is claimed is:

1. An electric dust collector comprising:
a dust collector to collect electrified dust particles; and
a dust collector case receiving the dust collector, wherein
the dust collector comprises a plurality of films to generate an electric field and a fixing part to fix the films in the dust collector case,
each of the films is longer than wide, the plurality of films arranged to face each other such that gaps are formed between adjacent films,
each of the films has a catching recess formed in at least one end thereof in a longitudinal direction (Y) of the films so as to be depressed in a lateral direction (Z),
wherein the fixing part comprises:
a gap maintenance part disposed at a first side of the plurality of films in a lateral direction (Z) of the films to maintain the gaps,
a plurality of holding ribs coupled to the dust collector case and inserted into the respective catching recesses, and
a molding part to fix the films, the molding part formed of a hardened predetermined paste coupled with a portion of each of the films, and

wherein the gap maintenance part comprises a plurality of vertical bars disposed inside the gaps,
wherein each of the vertical bars comprises a protrusion that protrudes from the vertical bars toward the films to reduce the gaps between the films,
wherein each of the catching recesses is formed in the shape of a slit that is opened at one side of the films,
wherein the holding ribs and the catching recesses are formed to be engaged with each other.

2. The electric dust collector of claim 1 , wherein the gap maintenance part comprises a plurality of gap maintenance parts spaced apart from each other in the longitudinal direction (Y) of the films.

3. The electric dust collector of claim 1 , wherein the films are arranged side by side to face each other.

4. The electric dust collector of claim 1 , wherein each of the vertical bars includes a protrusion that protrudes from the vertical bars toward surfaces of the films to reduce the gaps between the films.

5. The electric dust collector of claim 1 , wherein the gap maintenance part comprises a base gap maintenance part disposed at the first side of the films in the lateral direction (Z) of the films and a roof gap maintenance part disposed at a second side of the films in the lateral direction (Z) of the films,
the base gap maintenance part comprises a plurality of first vertical bars inserted into the gaps from the first side of the films, and
the roof gap maintenance part comprises a plurality of second vertical bars inserted into the gaps from the second side of the films.

6. The electric dust collector of claim 5 , wherein the base gap maintenance part and the roof gap maintenance part are symmetric with respect to a middle portion of the films in the lateral direction (Z) of the films.

7. The electric dust collector of claim 5 , wherein the base gap maintenance part and the roof gap maintenance part have the same shape.

8. The electric dust collector of claim 5 , wherein each of the first and second vertical bars is provided with a protrusion that protrudes toward the films to reduce the gaps between the films.

9. The electric dust collector of claim 5 , wherein
the base gap maintenance part comprises a first gap maintenance body that covers opposite ends of the films in a width direction (X) of the films in which the films are arranged and the first side of the films, and supports proximal ends of the first vertical bars, and
the roof gap maintenance part comprises a first gap maintenance body that covers opposite ends of the films in the width direction (X) of the films in which the films are arranged and the second side of the films, and supports proximal ends of the second vertical bars.

10. The electric dust collector of claim 9 , wherein
the first gap maintenance body comprises first opposite end support parts disposed at the opposite ends of films in the width direction (X) of the films in which the films are arranged and coupled to the dust collector case, and
the second gap maintenance body comprises second opposite end support parts disposed at the opposite ends of the films in the width direction (X) of the films in which the films are arranged and coupled to the dust collector case.

11. The electric dust collector of claim 9 , wherein
the first gap maintenance body comprises a first horizontal bar that extends in the width direction (X) of the films in which the films are arranged and contacts the films, and
the second gap maintenance body comprises a second horizontal bar that extends in the width direction (X) of the films in which the films are arranged and contacts the films.

12. The electric dust collector of claim 9 , wherein
the first gap maintenance body comprises a first fastening part to fasten the base gap maintenance part to the dust collector case,
the second gap maintenance body comprises a second fastening part to fasten the roof gap maintenance part to the dust collector case, and
the dust collector case comprises a hook that is inserted with the first fastening parts and the second fastening parts.

13. The electric dust collector of claim 1 , wherein the vertical bars in the gaps extend inward toward middle portions of the films in the lateral direction (Z) of the films.

14. The electric dust collector of claim 1 , wherein
the gap maintenance part comprises a base gap maintenance part disposed at the first side of the films in the lateral direction (Z) of the films and a roof gap maintenance part disposed at a second side of the films in the lateral direction (Z) of the films,
the base gap maintenance part comprises a plurality of base vertical bars inserted into the gaps from the first side of the films in the lateral direction (Z) of the films,
the roof gap maintenance part comprises a plurality of roof vertical bars inserted into the gaps from the second side of the films in the lateral direction (Z) of the films, and
the base vertical bars and the roof vertical bars in the gaps extend inward toward middle portions of the films in the lateral direction (Z) of the films.

15. The electric dust collector of claim 14 , wherein
a plurality of at least one of the base gap maintenance part and the roof gap maintenance part are alternately arranged and spaced apart from each other in the longitudinal direction (Y) of the films.

16. The electric dust collector of claim 14 , wherein the roof gap maintenance part comprises a roof body to cover opposite ends of the films in the width direction (X) of the films in which the films are arranged and the another side of the films, and supporting proximal ends of the roof vertical bars.

17. The electric dust collector of claim 1 , wherein
the gap maintenance part comprises a roof gap maintenance part disposed at one of opposite sides of the films in the lateral direction (Z) of the films that is further from an inner surface of the dust collector case than the other, and
the roof gap maintenance part comprises a roof body to cover opposite ends of the films in the width direction (X) of the films in which the films are arranged and the one side of the films that is further from the inner surface of the dust collector case in the lateral direction (Z) than the other.

18. The electric dust collector of claim 17 , wherein the roof body comprises an opposite end support part disposed at each of the opposite ends of the roof body in the width direction (X) of the films in which the films are arranged, the opposite end support parts being coupled to the dust co

Assignees

• Lg Electronics Inc

Inventors

• Lee Yanghwa
• Kim Taeyoon
• Jeon Hooncheol
• Choi Inho
• Choi Jieun
• Son Sanghyuk
• Lee Kyoungho

Classifications

• B03C3/86

  Electrode-carrying means (B03C3/40 takes precedence) · CPC title

• B03C3/41

  Ionising-electrodes · CPC title

• B03C3/82 Primary

  Housings · CPC title

• B03C3/45

  Collecting-electrodes · CPC title

• B03C3/47 Primary

  flat, e.g. plates, discs, gratings · CPC title