JPH0141486Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an air purifying device that collects dust such as cigarette smoke floating inside a car.

(b) Prior art As a technology prior to the present invention, Utility Model Application No. 55-144543
There is an in-vehicle air purifying device described in the specification and drawings of No. An ion generating device for adding anions to the cleaned air is formed near the outlet of the air purifying device. However, the ion generator is formed from a needle-shaped ionization electrode and a plate-shaped counter electrode,
This requires a plate-shaped counter electrode that is a separate member that is grounded, and requires time and effort such as wiring to the plate-shaped counter electrode.

(c) Problems to be Solved by the Invention In the present invention, the plate-shaped counter electrode facing the needle-shaped ionization electrode can also be used as another part, and the wiring can be simplified.

(d) Means for solving the problem The present invention solves the problem by using a conductive mounting plate fixed to the vehicle body as a counter electrode of the needle-shaped ionizing electrode.

(e) Effect This invention completes electrical wiring by fixing a mounting plate to the grounded vehicle body, and arranging the mounting plate to face the needle-shaped ionization electrode of the air purifier main body allows the ion generating part to be connected. It is something that forms.

(F) Embodiment The present invention will be described based on a vehicle ceiling-mounted air purifying device 1 that is used after removing a room lamp formed in the center of the indoor ceiling L of a vehicle C and then installing the device.

The air purifying device 1 includes a conductive mounting plate 3 that is attached with screws 2 to the part from which the room lamp has been removed;
It consists of an air purifier main body 4 that is attached to the mounting plate 3. The air purifier main body 4 includes a main case body 5 attached to the mounting plate 3, a substrate body 6 attached to the main case body 5, and a grill body 7 attached to the substrate body 6.
and a transparent cover body 8 attached to the substrate body 6.

As shown in FIGS. 2, 3, and 4, the air purifying device 1 is installed in the center of the interior ceiling of the vehicle C after removing the room lamp, and cleans the air sucked in from the bottom surface of the vehicle C. Blow out towards left and right doors D and D. Therefore, the purified air is blown out to the left and right along the ceiling as shown in Figure 4, and then flows down along the inner surfaces of the left and right doors D.
The air blows up from the center of the vehicle C and is sucked into the air purifying device 1 again. As a result, the air inside the vehicle C flows smoothly without being blocked by the seats A, etc., and the air is purified more efficiently.

FIG. 10 is a perspective view from above with the electrical board 9 removed from the board 6, and FIG. 5 is a bottom view from below when the air purifier 1 is attached to the ceiling L of the vehicle C. , FIG. 6 is a side view of the air purifier 1 attached to the ceiling L of the vehicle C, seen from the left side, and FIG. 7 is a side view of the same state, seen from the right side.

On the right side of the substrate body 6 near the driver's seat A, there is a box-shaped electrical component storage section 1 having an opening 10 formed on the top side.
1 is formed. A lamp mounting portion 12 is formed on the lower surface of the front side of the substrate body 6 to which the light-transmitting cover body 8 is attached and detached. A dust collecting section 13 is formed on the lower surface side of the substrate body 6 surrounded by the electrical component storage section 11 and the lamp mounting section 12, and a fan chamber section 14 is formed on the upper surface side. An air intake port 15 is formed in the center of the substrate body 6 of the dust collecting section 13. At the center of the intake port 15 is a cylindrical mounting portion 1 for an electric motor 16.
7 is formed. The mounting portion 17 is attached to the substrate body 6.
It is supported by a plurality of radial ribs 18 that protrude only from the bottom surface. The rib 18 extends to a wall portion 19 surrounding the dust collecting portion 13 of the substrate body 6. An air permeable first mesh electrode plate 20 is attached to the portion surrounded by the wall portion 19 with screws. The first mesh electrode plate 20 is supported by the ribs 18 while forming a ventilation path between it and the substrate body 6. The grill body 7
A wall portion 21 that abuts the wall portion 19 is formed on the inner surface. A second breathable mesh electrode plate 22 is attached to the portion surrounded by the wall portion 21 with screws, and a breathable filter 23 molded from a dielectric material is attached thereto. The electric motor 1 is attached to the mounting portion 17 so that the rotating shaft 24 protrudes into the fan chamber 14.
I am wearing 6. The mounting portion 17 is open on the side facing the second mesh electrode plate 22 . As shown in FIG. 22, power supply contacts 26 and 27 protrude from the rear surface of the electric motor 16 through an insulator 25. The power supply contact pieces 26, 27 have power supply lines 28, 29.
is connected. The feeder lines 28 and 29 are connected to the rib 1.
The wiring is connected to the groove portion 30 formed in the mounting portion 1.
I am drawn to 7. As shown in FIGS. 22 and 23, an elastic contact piece 31 for grounding the second mesh electrode plate 22 is formed on the power supply contact piece 27 to which the grounded power supply line 16 is connected. In this embodiment, the elastic contact piece 31 is formed as a separate component. The elastic contact piece 31 has an insertion hole into which the power supply contact piece 27 is inserted, and the power supply contact piece 2 is inserted into the insertion hole.
7, the power supply line 29 is connected to the power supply contact piece 27. Therefore, the elastic contact piece 31 is prevented from coming off from the power supply contact piece 27 by the power supply line 29, and is fixed at the same time as the power supply line 29 is soldered. One end of the elastic contact piece 31 is connected to the electric motor 1.
6 to ground the case.
Therefore, the radio noise generated by the electric motor 16 can be reduced. By attaching and detaching the grill body 7, the elastic contact piece 31 and the second mesh electrode plate 22 are brought into contact with each other, and power is smoothly supplied (grounded) to the separated second mesh electrode plate 22.

In this embodiment, the first mesh electrode plate 20, the air permeable filter 23, and the second mesh electrode plate 22 form a dust collector to be housed in the dust collection section 13. may be formed of a simple air-permeable filter, and any conventionally known dust collection structure may be used.

The outer surface of the electrical component storage section 11 also serves as the outer surface of the air purifying device 1, and switch operating bodies 32, 33 are mounted on the outer surface. In this embodiment, the switch operating bodies 32 and 33 are formed to be slidable. The switch operating body 3
One of 2 and 33 is a switch body 35 for controlling the lighting of the lamp body 34 attached to the lamp attachment part 12.
and the other operates the switch body 37 that controls the electric motor 16 and the high voltage generator 36. The switch operating bodies 32 and 33 form temporary holding pieces 39 and 39 that elastically engage the edges of through holes 38 and 38 formed in the electrical component storage section 11. The operating portions 4 of the switch bodies 35, 37 are located in the portions of the switch operating bodies 32, 33 that correspond to the through holes 38, 38.
0 and 41 are formed. The switch operation body 32 for controlling the electric motor 16 and the like is formed with a protrusion 44 that is inserted into the electrical component storage section 11. The protruding piece 44 moves within the electrical component storage section 11 together with the switch operating body 32. The grille body 7 has an engaging piece 45 formed on one side thereof inserted and locked into an insertion hole 60 formed on the side surface of the electrical component storage section 11, and the other side thereof is inserted into the insertion hole 60 formed on the side surface of the electrical component storage section 11.
It is formed by being locked with an elastic locking piece 47 formed in . The engaging piece 45 of the grill body 7 is located within the range in which the protruding piece 44 of the switch operation body 32 moves. When the switch operation body 32 is in the "off" position, the protruding piece 44 is retracted from the engaging piece 45 as shown in FIG. 18c, and the grill body 7 can be attached and detached. The switch operating body 3
2 to the "low" operating state shown in FIG. 18b and the "high" operating state shown in FIG. 18a, the engaging piece 45 and the protruding piece 44 overlap and engage. This condition is best seen in FIG. 15 and is also shown in FIGS. 8 and 9. Therefore, by operating the switch operation body 32, the electric motor 1
Since the engaging piece 45 and the protruding piece 44 are in an engaged state when the grill body 7 is in operation, the grille body 7 cannot be removed even if an attempt is made to do so. The above-mentioned FIGS. 18a, b, and c are plan views showing the relationship between the switch operation body 32 and the protrusion 44 of the grill body 7,
FIG. 15 is a perspective view showing the state shown in FIG. 18b, FIG. 8 is a bottom view of the air purifying device 1 with the electrical component storage section 11 cut away, and FIG. 9 is indicated by - in FIG. 7. FIG. The attachment relationship between the switch operating bodies 32, 33 and the switch bodies 35, 37 is shown in the sectional view shown in FIG. 11 taken along the line XI--XI in FIG.

By operating the switch operating body 32, a pair of contact pieces 46 shown in FIGS. 8, 15, and 18 are cut. In this embodiment, the contact piece 46 is cut at the protruding piece 44. The contact piece 46 is inserted when the switch operating body 32 is in the "off" state and the grill body 7 is removed. The contact piece 46
One side is grounded, and the other side is connected to the first mesh electrode plate 2.
Connected to 0. When the contact pieces 46 come into contact with each other, the charges accumulated in the first mesh electrode plate 20 are discharged, thereby preventing an electric shock accident when the first mesh electrode plate 20 is exposed when the grille body 7 is removed. .

The switch bodies 35, 37 are mounted on the electrical equipment board 9 as shown in FIGS. 10, 9, and 11. Electronic components such as a speed control resistor 47 of the electric motor 16 are mounted on the electrical equipment board 9. The resistor 47 is mounted on a surface opposite to the surface on which the switch bodies 35, 37 are mounted. The electrical equipment board 9 is mounted so as to close the opening 10 of the electrical equipment storage section 11, and forms a continuous plane with the board body 6.
A rib 48 for supporting the electrical component board 9 and a boss 50 into which a fixing screw 49 is screwed are formed in the electrical component storage section 11 . A centrifugal blower blade 51 is attached to the rotating shaft 24 of the electric motor 16 . By rotating the air blowing blade 51, the fan chamber section 14 is introduced from the dust collection section 13 side through the air intake port 15.
The air sucked in is blown along the substrate body 6. The air blown along the substrate body 6 is purified air. By flowing clean air over the electrical equipment board 9, heat generated from the switch bodies 35, 37, resistor 47, etc. mounted on the electrical equipment board 9 can be radiated, and at this time, the electrical equipment board 9 and Dust does not adhere to mounted components and insulation deterioration is prevented. The resistor 47 protrudes into the ventilation path from the ventilation blade 51 and is efficiently cooled.

Elastic power feeding pieces 52, 52 are formed at one end of the electrical equipment board 9 for supplying power to the electrical equipment board 9 and for wiring to other parts. The elastic power feeding piece 52,
In this embodiment, as shown in FIG. 17, 52 is formed of a straight plate on one side and a bent plate on the other. The substrate body 6 supports an elastic contact piece 53 whose one end protrudes into the dust collection section 13 and comes into contact with the first mesh electrode plate 20, and whose other end protrudes toward the electrical component storage section 11 side. As shown in FIGS. 1, 14, and 16, the elastic contact piece 53 is inserted into an insertion hole formed in the base plate 6 and is held by being supported in the middle thereof. The dust collection section 1 of the elastic contact piece 53
A needle-shaped ionization electrode 54 that projects into the fan chamber 14 is formed in a portion of the substrate body 6 that faces the projecting end toward the fan chamber 14 . The ionization electrode 54 is supplied with electricity by contacting the elastic contact piece 53. The elastic contact piece 53 and the elastic power supply pieces 52, 52 protrude into a proximal portion corresponding to one end of the electrical component storage section 11. The elastic contact piece 5 of the main case body 5
The high voltage generator 36 is attached to the portion facing the elastic power feeding pieces 3 and 52, 52. The high voltage generator 36 is attached to the main case body 5 by an elastic locking member 55, as shown in FIGS. 16 and 17. The high voltage generator 36 has low voltage contact bodies 56, 56 in contact with the elastic power supply pieces 52, 52.
and a high voltage contact body 57 with which the elastic contact piece 53 contacts.
and is formed. By attaching the substrate body 6 to the main case body 5, electrical connection can be completed as shown in FIGS. 1 and 11 without the need for electrical connection work such as soldering. Further, as shown in FIG. 25, when the main case body 5 and the substrate body 6 are separated, the high voltage generator 36 remains in the main case body 5, and the other low voltage circuit parts remain in the substrate body 6, and the circuits are separated. This allows assembly work to be done individually, improving efficiency. The main case body 5 and the substrate body 6 are connected by a screw 59 screwed into a boss 58 formed on the substrate body 6. The main case body 5 is provided with a rib that forms a fan case that is located around the blower blades 51 when connected to the substrate body 6 and is connected to the air outlet 60 formed on the right and left sides of the main case body 5. 61 is formed. The substrate body 6, the lamp mounting portion 12 on the side of the fan chamber 14, and the fan chamber 14 are partitioned by the rib 61.

The mounting plate 3 is formed by bending a metal plate,
A locking piece 63 is formed to be locked to an engaging portion 62 formed on the main case body 5. The engaging portion 62 is formed in a portion of the main case body 5 facing the needle-like ionization electrode 54, and a locking piece 63 that is engaged with the engaging portion 62 is inserted and exposed into the main case body 5. The acicular ionizing electrode 54 faces the acicular ionizing electrode 54 to form a counter electrode of the ionizing electrode 54. Said mounting plate 3
is fixed with screws 2 after removing the room lamp as shown in FIG. Therefore, the body of the vehicle C has conventionally been grounded, and the mounting plate 3 has been grounded, so that the locking piece 6 of the mounting plate 3
3 also serves as a counter electrode plate for the needle-shaped ionization electrode 54. The needle-shaped ionization electrode 54 is located behind the air outlet 60 and ionizes clean air.

A lamp body 34 mounted on a substrate 64 is mounted on the lamp mounting portion 12 as shown in FIG. 14, and the lamp body 34 is positioned facing the light-transmitting cover body 8 as shown in FIG. 13. The board 64 is locked by elastic claws 65 formed on the lamp mounting part 12. A grounded negative terminal 66 of the air cleaning device 1 is formed on the substrate 64 .
The air purifying device 1 has a positive electrode wire 67 from a storage battery.
A control line 68 from the door interlocking switch is connected to the control line 68. As shown in FIGS. 12 and 20, a screw 69 is inserted through the negative terminal 66 in contact with the negative terminal 66, and the screw 69 is screwed into the mounting plate 3. The mounting plate 3 is connected to the body of the vehicle C to which the negative electrode of the storage battery is connected, thereby completing the wiring of the negative electrode terminal 66 via the screw 69. Further, the screw 69 integrates the mounting plate 3, the main case body 5, and the substrate body 6, so that the locking piece 63 of the mounting plate 3 and the engaging portion 62 of the main case body 5 are locked. Prevent it from coming off.

(g) Effects of the invention This invention has the following effects: by making the mounting plate double as the counter electrode of the ionization electrode, the number of parts can be reduced, and the structure can be simplified by wiring only to the ionization electrode. .

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the main part taken from the - part of Figure 5, Figures 2 and 3 are perspective views showing the state in which it is installed on a vehicle, Figure 4 is a cross-sectional view excluding the interior of the vehicle, Figure 5 is a bottom view, Figure 6 is a left side view, Figure 7 is a right side view, Figure 8 is a cross-sectional bottom view of the electrical component storage section, Figure 9 is a cross-sectional view of Figure 7, and Figure 10 is a bottom view. The figure is an exploded perspective view of the board, and Figure 11 is XI- of Figure 5.
12 is a sectional view taken along line XII-XII in FIG.
The figure is a perspective view showing the relationship between the switch operating body and the grill body, Figure 16 is a cross-sectional perspective view showing the relationship between the high voltage generator and the ionization electrode, and Figure 17 is the relationship between the high voltage generator and the electrical board. Figures 18a, b, and c are perspective views showing the switch operating body's "high", "low" and
FIG. 19 is a perspective view of the lamp board portion; FIG. 20 is a sectional view of the screw portion that supplies power to the negative electrode side; FIG. 21 is an exploded perspective view of the mounting plate; The figure is a perspective view of the rear part of the electric motor.
FIG. 23 is a perspective view of the elastic contact piece portion that supplies power to the first mesh electrode plate, FIG. 24 is an exploded perspective view, and FIG. 25 is an exploded perspective view of the main case body. 2... Screw, 3... Mounting plate, 4... Air purifier main body, 54... Needle-shaped ionization electrode, 62... Engaging portion, 63... Locking piece.

Claims (1)

[Claims for Utility Model Registration] 1. A device comprising a conductive mounting plate that is fixed to the vehicle body with screws, and an air purifier main body that is attached to and detached from the mounting plate,
An on-vehicle air cleaning device comprising a needle-shaped ionization electrode formed near an outlet of the main body and facing the mounting plate. 2. The vehicle-mounted air purifying device according to claim 1, wherein the locking piece formed on the mounting plate is inserted into and locked into the engaging portion formed on the main body so as to face the needle-shaped ionizing electrode.