JP4752179B2 - Electric dust collection unit - Google Patents

Description

  The present invention relates to an electric dust collection unit used by being mounted on an air flow path portion of an air conditioner or the like.

  Conventionally, an electric air cleaning device for an air conditioner is known as an example of this type of electric dust collection unit (see, for example, Patent Document 1).

  Hereinafter, the electric air cleaning apparatus will be described with reference to FIG.

As shown in the figure, a holding frame 101 of the air cleaning device, a high-voltage power supply unit 102 disposed at an end of the holding frame 101, a high-voltage terminal 103 and a ground terminal 104 from the high-voltage power supply unit 102, It has a contact portion 105 between a high voltage terminal 103 and a ground terminal 104, and is configured by a filter body 106 that is detachably provided on the holding frame 101.
Japanese Patent Laying-Open No. 2003-106552 ([0016] to [0017], FIG. 1)

In such a conventional electric air cleaning device, the high voltage terminal 103 and the ground terminal 104 are provided only on either the left or right side of the filter main body 106 attached to the holding frame 101. When removing the dust collector unit, the resistance of the high voltage terminal 103 and the ground terminal 104 causes a problem that the filter body 106 is twisted and is difficult to remove, so that the dust collection unit (equivalent to the filter body) is not twisted when removing the dust collector unit. Is required to do.

The present invention is intended to solve such conventional problems, when removing the dust collection unit from the hold unit, removable as dust collection unit is not twisted to provide an electric dust collection unit that can be easily The purpose is that.

In order to achieve the above object, an electric dust collection unit of the present invention comprises a holding unit provided with an opening / closing means for opening and closing a high-voltage power supply unit, and a dust collection unit attached to the holding unit, and the dust collection unit to the switch operation rib engaging said opening and closing means is provided, the said holding unit, one with the opening and closing means side, face each other a pair of anti-fall support, the dust collection unit, the The side surface on the side of the opening and closing means is sandwiched between the two side surfaces by the engagement of one of the fall prevention supports and the switch operating rib, and the other side surface is opposed by the engagement of the other of the fall prevention supports , The fall prevention support body provided on the opening / closing means side has a smaller support force than the other fall prevention support body.

  By this means, it is possible to obtain an electric dust collection unit that can be pulled out without twisting the dust collection unit.

  Another means is that the fall prevention support is formed by a spherical head and a coil spring that presses the head, and the shape or material of the coil spring is changed to change the support force of the fall prevention support. It is what.

  By this means, it is possible to obtain an electric dust collecting unit that can form the support force of the coil spring with a different support force by a simple response to changing the shape and material.

  Another means is to provide a storage portion for storing the coil spring to form a fall prevention support body, and change the storage size of the storage portion to change the support force.

  By this means, an electric dust collecting unit can be obtained which can be handled by one type of coil spring and can standardize parts.

  In another means, a pair of rail portions parallel to the upper end sides of the dust collection unit are provided, and a pair of flange portions that slidably support the rail portions are formed in the holding unit.

  By this means, the dust collecting unit can be attached and detached without being twisted regardless of the left and right positions of the opening and closing means.

ADVANTAGE OF THE INVENTION According to this invention, the electric dust collection unit which can prevent a twist at the time of removal of a dust collection unit can be provided.

  In addition, standardization and common use of parts in the fall prevention support can be achieved.

  In addition, the dust collection unit can be attached and detached smoothly regardless of the mounting position of the opening / closing means of the holding unit.

According to the first aspect of the present invention, there is provided a holding unit provided with an opening / closing means for opening and closing the high-voltage power source in a shape that is attached to an air flow path portion of an air conditioner or the like, and is detachably attached to the holding unit. The dust collection unit is provided with a switch operation rib that engages with the opening / closing means, and one side of the holding unit faces the opening / closing means. A pair of fall prevention supports facing each other, and the dust collecting unit has a side face on the opening / closing means side and a side face on the other side facing each other by engagement of the one fall prevention support body and the switch operation rib. while being sandwiched with two side by engagement of the other of the anti-fall support, the anti-fall support provided to the switching means side, der those supporting force is smaller than the other of the anti-fall support Since the contact resistance is higher on the side of the dust collection unit with the switch operating rib that operates the opening and closing means, and the unbalanced when removing the dust collection unit, the support for the fall prevention support By reducing the force, the dust collecting unit can be prevented from being twisted when removed.

Further, those with the head of the spherical shape drop under prevention support, formed by a coil spring for pressing the head was the supporting force of the anti-fall support by changing the shape or material of the coil spring differs In order to change the supporting force of the fall prevention support body, it is not necessary to use a member other than the coil spring, so that the structure can be simplified and the storage portion for storing the coil spring can be shared. .

Further, by providing a housing part for housing the coils springs forming the anti-fall support, which was a supporting force different by changing the storage size of the storage portion, a coil spring formed in a predetermined shape Since it can be used, it has the effect | action which can aim at standardization of components.

Further, a pair of rail portions parallel to the upper sides of the dust collection unit is obtained by forming a pair of eave portion for supporting the rail portion slidably on the holding unit, the rail portion of the dust collecting unit is held By sliding to be guided by the collar of the unit, the dust collection unit can be held while maintaining the posture in the sliding direction of the collar even if contact resistance such as opening / closing means exists between the dust collection unit and the holding unit. It has an action that can be pulled out.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

( Reference Example 1)
As shown in FIGS. 1 to 4, the holding unit 9 is fixedly attached to an air flow path portion of an air conditioner or the like, and a dust collection unit 10 is detachably attached to the holding unit 9. A limit switch 6 for opening and closing a high-voltage power supply circuit of a high-voltage power supply unit 5 and a ground connection terminal 4 formed by a leaf spring-shaped high-voltage supply terminal 1, a spherical head 2 and a coil spring 3 is provided on the inner surface of the holding unit 9. Further, an opening / closing means 8 comprising a bent elastic body 7 for operating the limit switch 6 is provided.

  The dust collection unit 10 is provided with switch operation ribs 11 for operating the opening / closing means 8 of the limit switch 6 on both side surfaces, and has both sides of the same shape and a substantially reverse symmetrical shape directed in the opposite direction. The holding unit 9 is provided with a ground terminal 12, a high voltage receiving terminal 13, a limit switch 6 and a bending elastic body 7 so as to be attachable to either side.

  Further, the dust collecting unit 10 is provided with a needle electrode plate 15 provided with a plurality of needle electrodes 14, and the needle electrode plate 15 is provided so that the high-voltage supply / demand terminal 13 is electrically connected to the high voltage. A filter (not shown) for collecting the applied and ionized dust is provided.

  In the above configuration, when the high-voltage supply terminal 1 and the ground connection terminal 4 are located on the right side of the holding unit 9 as shown in FIG. 2, the ground terminal is connected to the right side surface of the dust collecting unit 10 as shown in FIG. 12 and the high voltage receiving terminal 13 are attached to form the dust collection unit 10. When the dust collection unit 10 is attached to the holding unit 9, the opening / closing means 8 that operates the limit switch 6 is moved by the switch operation rib 11 provided on the dust collection unit 10, and the limit switch 6 is activated and the holding unit 9 is provided. The high voltage supply terminal 13 and the ground terminal 12 provided in the dust collection unit 10 are electrically connected to the high voltage supply terminal 1 and the ground connection terminal 4 to collect dust.

  When the high-voltage supply terminal 1 and the ground connection terminal 4 are located on the left side of the holding unit 9 as shown in FIG. 4, the ground terminal 12 and the high-voltage on the left side surface of the dust collecting unit 10 as shown in FIG. By attaching the receiving terminal 13 and forming the dust collecting unit 10, dust can be collected by the same action as that provided on the right side as described above.

  Thus, the high voltage receiving terminal 13 and the ground terminal 12 provided in the dust collecting unit 10 are interchanged between the left and right sides of the high voltage power supply portion provided with the high voltage supply terminal 1 and the ground connection terminal 4 on either the left or right side of the holding unit 9. Thus, the dust collection unit 10 corresponding to the holding unit 9 can be formed, and the dust collection unit 10 can be shared.

(Embodiment 1 )
As shown in FIGS. 5 to 8, switch operation ribs 11A for operating the opening / closing means 8A of the high-voltage power supply circuit are provided in the dust collection unit 10A, and the dust collection unit is attached to the mounting wall surface of the holding unit 9A to which the dust collection unit 10A is mounted. A pair of fall prevention supports 17 and 17A for holding 10A is provided. The fall prevention support 17A on one side is provided so as to serve also as a ground connection terminal, and the fall prevention supports 17 and 17A are formed by a spherical head 2 and coil springs 3 and 3A for pressing the head 2. A storage portion 18 for storing the coil springs 3 and 3A is provided. The coil spring 3A is formed by changing the shape of the wire diameter or the like, by using a hard wire, or by using a soft wire having a low elasticity to form the fall prevention support 17A having a different support force. In this embodiment, the support force of the fall prevention support body 17A is formed smaller than that of the other fall prevention support body.

  In the above configuration, when the dust collection unit 10A is pulled out from the holding unit 9A, on the right side of the dust collection unit 10A, the engagement force of the drop prevention support body 17 is greater than the engagement force with which the switch operating rib 11A is engaged with the opening / closing means 8A. Additive action. On the other hand, on the left side of the dust collection unit 10A, the engagement force of only the fall prevention support body 17 provided on the holding unit 9A acts.

  Here, by adjusting the engagement force of the fall prevention support member 17A to be smaller than that of the other fall prevention support member 17, the support force from the left and right with respect to the dust collection unit 10A becomes substantially the same, and the dust collection unit 10A tilts to the left side. It will be pulled out without.

  In other words, the switch operating rib 11A for operating the opening / closing means 8A provided in the holding unit 9A and the side surface of the dust collecting unit 10A provided with the high voltage receiving terminal 13A and the ground terminal 12A have a larger contact resistance, and the left and right supporting forces are unbalanced. By reducing the supporting force of the fall prevention support body 17A so as to be substantially equal to the left and right in the balanced state, it is possible to prevent twisting when removing the dust collection unit 10A.

  Further, the fall prevention support body 17A is formed by the head 2 and the coil spring 3A, and the supporting force of the fall prevention support body 17A is changed from the fall prevention support body 17 by changing the number of turns, the winding diameter or the type of steel material of the coil spring 3A. By reducing the size, the dust collecting unit 10A can be removed without changing by simply changing the shape or material of the left and right coil springs 3 and 3A, the structure can be simplified, and the storage portion for storing the coil spring 3A 18 can be a common size.

(Embodiment 2 )
As shown in FIGS. 9 and 10, a head portion 2B is integrally provided at the tip of the coil spring 3B to form a fall prevention support body 17B, and a storage portion 18A provided on the left and right inner surfaces of a holding unit (not shown). , 18B accommodates the fall prevention support 17B. Here, the storage dimensions of the one storage portion 18B are changed to have different support forces.

  In the above configuration, as an example of changing the storage dimension of the storage portion 18B, the dimension adjusting member 19 is provided at the back of the storage portion 18B. As a result, the coil spring 3B having a certain length is compressed by the dimension provided with the dimension adjusting member 19, and the supporting force by the head 2B can be increased.

  By using the anti-falling support 17B provided on the opposite side of the anti-falling support 17A in this way, the unbalance of the engaging force with respect to the dust collecting unit (not shown) is eliminated, and the dust collecting unit can be pulled out without being distorted. In addition, the coil spring 3B having the same shape can be used, and standardization of parts can be achieved.

( Reference Example 2 )
As shown in FIGS. 11 to 13, on either side of the high-voltage power supply unit 20 having the high-voltage power supply unit 5 </ b> A having both sides of the shape provided in the holding unit 9 </ b> B and having a substantially reverse symmetrical shape. A high voltage supply terminal 1A and a ground connection terminal 4C to which the dust collection unit can be attached are provided, and a high voltage supply terminal 13B and a ground terminal 12B are provided in the dust collection unit 10B so as to be compatible with the high voltage supply terminal 1A and the ground connection terminal 4C. And configure.

  In the above configuration, when the dust collection unit 10B is disposed on the left side of the high-voltage power supply unit 20, the limit switch 6A that opens and closes the high-voltage power supply unit 5A on the left side of the high-voltage power supply unit 20 and the opening / closing means 8B that opens and closes the limit switch 6A. The high-voltage supply terminal 1A and the ground connection terminal 4C are attached. A high-pressure receiving terminal 13B and a ground terminal 12B that match the high-voltage supply terminal 1A and the ground connection terminal 4C are provided on the right side surface of the dust collection unit 10B. When the dust collection unit 10B is provided on the right side of the high-voltage power supply unit 20 as indicated by a two-dot chain line in the figure, the limit switch 6A, the opening / closing means 8B, the high-voltage supply terminal 1A, and the ground connection terminal are provided on the right side of the high-voltage power supply unit 20. 4C is attached, and by providing a high-voltage receiving terminal 13B and a ground terminal 12B on the left side of the dust collection unit 10B, a part of the components of the high-voltage power supply unit 20 can be used regardless of whether the high-voltage power supply unit 20 is on the left or right of the holding unit. The high voltage power supply unit 20 can be shared by mounting by replacing it.

( Reference Example 3 )
As shown in FIG. 14, holding units 9C are provided on both sides of a high-voltage power supply unit 20A provided with a high-voltage power supply unit (not shown) and a high-voltage supply terminal 1B and a ground connection terminal 4D, with both sides being substantially reversely symmetrical. The dust collecting unit 10C is mounted on the holding unit 9C.

  In the above configuration, the dust collecting unit 10C is mounted via the holding units 9C provided on both sides of the high-voltage power supply unit 20A, so that the electric dust collecting unit can be formed in a large size, so that it can be used as a household electric dust collecting unit. The high-voltage power supply unit 20A, the holding unit 9C, and the dust collection unit 10C formed in the above can meet the specifications for business use and industrial use, and it is not necessary to make a separate electric dust collection unit for business use or industrial use. Reduction and parts management can be facilitated.

(Embodiment 3 )
As shown in FIG. 15, a pair of rail portions 21 parallel to the upper end sides of the dust collection unit 10D is formed, and the rail portions 21 are formed vertically long from the tip of the dust collection unit 10D to the vicinity of the center. The holding unit 9 </ b> D to which the dust collection unit 10 </ b> D is detachably mounted has a pair of flange portions 22 at positions corresponding to the rail portions 21, and a hanging wall portion 22 </ b> A is extended at the tip of the flange portion 22.

  In the above configuration, when pulling out the dust collecting unit 10D from the dust collecting unit 9D from the holding unit 9D, an engaging force that engages a switch operating rib (not shown) with an opening / closing means (not shown) acts. Since the rib side is pulled out first, it is easy to twist. However, the rail portion 21 of the dust collection unit 10D is guided by the flange portion 22 of the holding unit 9D and slides, so that it can be pulled out smoothly. Also, when attaching the dust collecting unit 10D to the holding unit 9D, the rail unit 21 can be easily attached with little resistance simply by inserting and pushing the rail unit 21 into the flange unit 22.

  Using the technology of mounting on either the left or right side, it can also be applied to industrial and industrial electric dust collection units that are long in the vertical direction.

The front view of the dust collection unit of the electric dust collection unit of the reference example 1 of this invention Partial view of a holding unit with a high-pressure supply on the right side of the electric dust collection unit Front view of a dust collection unit with a terminal part on the left side of the electric dust collection unit Partial view of a holding unit with a high-pressure supply on the left side of the electric dust collection unit The front view of the holding | maintenance unit of the electric dust collection unit of Embodiment 1 of this invention Front view of the dust collection unit of the same electric dust collection unit Part A enlarged view of the electric dust collection unit shown in FIG. Part B enlarged view of the electric dust collection unit shown in FIG. The fragmentary figure which shows the fall prevention support body by the side of the earth terminal of the electric dust collection unit of Embodiment 2 of this invention Partial view showing the fall prevention support on the anti-earthing terminal side of the electric dust collection unit The front view of the high voltage power supply unit of the electric dust collection unit of the reference example 2 of this invention Partial view of a dust collection unit with a terminal on the right side of the electric dust collection unit Partial view of the dust collection unit with a terminal on the left side of the electric dust collection unit The exploded front view of the electric dust collection unit of the reference example 3 of this invention (B) Front view of electric dust collection unit according to Embodiment 3 of the present invention (b) CC cross-sectional view of electric dust collection unit (c) DD cross-sectional view of electric dust collection unit Front view of conventional electric dust collection unit

DESCRIPTION OF SYMBOLS 1 High voltage supply terminal 1A High voltage supply terminal 1B High voltage supply terminal 2A Head 2B Head 3A Coil spring 3B Coil spring 4 Ground connection terminal 4A Ground connection terminal 4B Ground connection terminal 4C Ground connection terminal 4D Ground connection terminal 8 Opening / closing means 8A Opening / closing means 9 Holding Unit 9A Holding Unit 9B Holding Unit 9C Holding Unit 9D Holding Unit 10 Dust Collection Unit 10A Dust Collection Unit 10B Dust Collection Unit 10C Dust Collection Unit 10D Dust Collection Unit 11A Switch Operation Rib 12 Ground Terminal 12A Ground Terminal 12B Ground Terminal 13 High Pressure Receiving terminal 13B High voltage receiving terminal 17 Drop prevention support body 17A Fall prevention support body 18A Storage part 20 High voltage power supply unit 20A High voltage power supply unit 21 Rail part 22 ridge part

Claims (4)

A holding unit provided with an opening / closing means for opening and closing the high-voltage power supply unit in a shape to be attached to an air flow path part of an air conditioner, etc .;
An electric dust collection unit comprising a dust collection unit that is detachably attached to the holding unit,
The dust collection unit is provided with a switch operation rib that engages with the opening / closing means,
The holding unit is provided with a pair of fall-preventing supports facing each other with one side facing the opening / closing means,
The dust collecting unit has two side surfaces on the side of the opening / closing means by engagement of one of the fall prevention supports and the switch operation rib, and the other opposite side surface by engagement of the other fall prevention support . While holding the side,
The drop-preventing support provided on the opening / closing means side is an electric dust collection unit having a smaller support force than the other drop-preventing support. The fall prevention support is formed by a spherical head and a coil spring that presses the head,
The electrostatic precipitator according to claim 1, wherein the coil spring has a different shape or material to change the supporting force of the fall prevention support. The electric dust collection unit according to claim 2, wherein a storage unit for storing the coil spring is provided, and the storage size of the storage unit is changed to change the support force. The pair of rail parts parallel to the upper end both sides of the dust collecting unit are provided, and a pair of flange parts that slidably support the rail parts are formed in the holding unit. Electric dust collection unit.

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