JP3736324B2 - Air cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air cleaner that cleans air sucked by a fan. The present invention is suitable, for example, for an air purifier that is attached to the ceiling of a vehicle interior.
[0002]
[Prior art]
In the air purifier, if the grill is directly dropped when the grill is removed from the main body, the grill is damaged, which is not preferable. As a technique for suppressing the direct fall of the grill, Japanese Patent Laid-Open No. 11-148673 (release date: June 2, 1999) describes a string when the suction grill is removed from the main body in a ceiling-embedded air conditioner. A technique for preventing the suction grille from falling by suspending the suction grille from a main body with a stay in the shape of a pipe is disclosed.
[0003]
Japanese Patent Application Laid-Open No. 10-103708 (published date: April 21, 1998) discloses a shaft part mounted on a mounting piece formed by a slit on both sides of a suction grill in a ceiling-embedded air conditioner. And a technique in which the shaft portion is fitted into the shaft hole of the main body is disclosed.
[0004]
[Problems to be solved by the invention]
According to the prior art related to the former publication, since the suction grille is suspended from the main body by a string-like stay to prevent the suction grille from falling, in order to completely remove the suction grille from the main body, It is troublesome to remove the stays in the shape of each one.
[0005]
According to the prior art related to the latter publication, in order to remove the suction grill from the main body, it is necessary to remove the shaft portion from the shaft hole by bending the mounting pieces provided on both sides in the width direction of the grill. . In this case, it is necessary to bend both attachment pieces provided on both sides in the width direction of the grill, which is troublesome.
[0006]
The present invention has been made in view of such circumstances. When the grill is removed from the air purifier main body, the grill can be temporarily held to suppress the natural fall of the grill, and the grill can be moved with one hand of the operator. It is an object of the present invention to provide an air purifier that can be removed from the purifier main body by a simple operation.
[0007]
[Means for Solving the Problems]
An air cleaner according to the present invention includes an air inlet and an air outlet, an air flow path connecting the two, a fan that forms an air flow from the air inlet to the air outlet through the air flow path, and air flowing through the air flow path An air purifier body having a purification section for purifying the flow;
In an air cleaner having a grill that covers at least one of the air inlet and the air outlet of the air cleaner main body so as to allow ventilation and is rotatably attached to the air cleaner main body.
The grill includes a rotating arm portion provided at one end portion of the grill and serving as a rotation center region of the grill, and a grill engaging portion provided at the other end portion of the grill and detachably engaged with the air purifier main body. Mochi,
The air cleaner body has a first engagement portion and a second engagement portion that face each other close to each other through a space,
The first engagement portion and the second engagement portion of the air cleaner body are
When the rotation angle of the grill with respect to the air cleaner body is small, the rotation arm portion of the grill can be inserted into and removed from the space between the first engagement portion and the second engagement portion.
When the rotation angle of the grill with respect to the air cleaner body is large, the surface of the rotation arm of the grill is engaged with the second engagement portion and the surface of the rotation arm of the grill is engaged with the second engagement portion. This is characterized in that the rear surface portion of the air purifier is temporarily held by the main body of the air purifier while maintaining the grille in the rotating position by engaging the first engaging portion.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, when the fan is driven, the air sucked from the intake port flows through the air flow path, is purified by the purification unit, and is blown out of the machine from the blowout port. The air cleaner body has a first engagement portion and a second engagement portion that face each other close to each other through a space. When the rotation angle of the grill with respect to the air cleaner body is small, the first engagement portion and the second engagement portion of the air purifier main body are connected to the first engagement portion and the second engagement portion. It can be inserted into and removed from the space between. When the grill is pulled out in such a state that it can be inserted and removed, the rotating arm portion of the grill can be easily removed from the space between the first engagement portion and the second engagement portion.
[0009]
Further, the first engaging portion and the second engaging portion of the air cleaner main body engage the rotating arm portion of the grill with the second engaging portion when the rotation angle of the grill with respect to the air cleaner main body is large. At the same time, a portion of the rear surface of the rotating arm portion of the grill that engages with the second engaging portion is engaged with the first engaging portion, and the grill is temporarily attached to the air cleaner body while maintaining the grill in the rotating position. Hold. If the grill is temporarily held in this way, the direct fall of the grill is suppressed when the grill is removed from the air cleaner body. Therefore, under the condition that the above function can be performed, the first engagement portion may be any one that can contact and engage one surface of the rotating arm portion of the grill, and the second engagement portion Any material that can contact and engage the other surface of the rotating arm portion of the grill may be used. The first engaging portion and the second engaging portion may be claw-shaped or shaft-shaped, and the shape is not particularly limited.
[0010]
-The air cleaner main body can adopt a form constituted by a body having an air inlet, an air flow path, a fan, and a purifying unit, and a decorative plate attached to the body. In this form, the decorative board can have a first engagement portion and a second engagement portion. As the decorative plate, for example, an intake grill can be used.
[0011]
-As a purification | cleaning part, it can be set as the adsorption | suction part which can adsorb | suck at least 1 sort (s), such as a dust and an odorous substance. As such an adsorbing portion, at least one of a dust collecting filter or a photocatalyst can be employed. As a filter, it can form using the nonwoven fabric formed from resin-type materials, such as PP and PET, or a glass fiber filter. A larger surface area of the filter is preferable for capturing dust and the like, and thus it is desirable to have a corrugated shape in which mountain folds and valley folds are alternately repeated. Moreover, it is also preferable to perform a charging treatment as necessary. For example, the filter can be formed by laminating a layer mainly composed of at least one of activated carbon, zeolite, silica gel and the like and a layer subjected to charging treatment. The filter may have a form integrally including a photocatalyst or may not have a photocatalyst. When the filter has an integrated photocatalyst, a powdered photocatalyst can be slurried and applied to the filter by coating, dipping, etc., or a powdered photocatalyst can be applied to the filter material. But it ’s okay. The photocatalyst is effective in removing odorous substances such as cigarettes. ₂ , WO _Three , CdS, SrTiO _Three , MoS ₂ A well-known thing can be used. Considering ease of handling and degree of activity, TiO ₂ It is desirable to use TiO ₂ As the crystal structure, both the rutile type and the anatase type can be used, but in general, the anatase type having a large catalytic activity is preferred. The shape of the photocatalyst is not particularly limited, and can be various shapes and sizes such as powder or particles. In this case, the photocatalytic substance itself may be in the form of powder or particles, or the photocatalyst may be supported on a powdery or particulate carrier. Examples of the carrier include, but are not limited to, silica gel particles and activated carbon.
[0012]
When the filter and the photocatalyst are separately provided in the air cleaner as separate purification sections, the photocatalyst may be arranged on the downstream side or the upstream side of the filter. Therefore, it is preferable to dispose the photocatalyst downstream of the filter in consideration of suppressing the adhesion of large particles to the photocatalyst and improving the performance of the photocatalyst. As the excitation means for exciting the photocatalyst, a light emitting diode, black light, cold cathode tube, or the like can be adopted. As this light emitting diode, one that emits light of a short wavelength can be adopted, and the wavelength can be set to, for example, 360 nm to 400 nm, but is not limited to this wavelength range. A gallium nitride (GaN) system can be used as the light emitting diode, but is not limited thereto. A light-emitting diode is a small element and generally does not require a large space for installation, which is advantageous for downsizing. Since the light emitting diode emits light with a low voltage current, it is advantageous for power saving.
[0013]
-The grille can be configured to be equipped with a photocatalyst holder holding a photocatalyst. In this case, if the grill is removed from the air cleaner body, the photocatalyst holder can be removed from the air cleaner body. The photocatalyst holder can be detachable from the grill. In this case, it is advantageous to replace the photocatalyst held in the photocatalyst holder.
[0014]
In the form in which the photocatalyst is provided on the downstream side of the filter, excitation means such as a light emitting diode can be arranged on the downstream side of the filter. In this case, since dust and the like are removed from the airflow flowing through the air flow path by the filter, it is possible to suppress the dust and the like from adhering to the excitation means such as the light emitting diode, which is advantageous for protecting the excitation means such as the light emitting diode. Thus, the capability of the excitation means such as a light emitting diode can be maintained over a long period of time.
[0015]
【Example】
Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.
[0016]
The air purifier according to the present embodiment is attached to the interior ceiling side of a vehicle such as an automobile, and as shown in FIG. 1, the main body 1 that is the main body of the air purifier is thin, that is, flat. An air flow path 1c having a fan chamber 1a and a filter housing chamber 1b, a fan 2 disposed in the fan chamber 1a, and a dust collecting filter 3 functioning as a first adsorption portion disposed in the filter housing chamber 1b; A resin-made intake grill 51 as a decorative plate is detachably mounted on the lower surface side of the main body 1. As shown in FIG. 1, the main body 1 includes a box-shaped body 12 formed by integrally connecting a front plate 10 having an intake port 10t on the interior R side of the vehicle body and a rear plate 11 on the vehicle body side. ing. In FIG. 1, the intake grill 51 covers more than half of the lower surface of the body 12 of the main body 1 and forms a large number of grill intake ports 52. On the downstream side of the intake grill 51, an air outlet 53 that also serves as a filter inlet / outlet is formed. As shown in FIG. 2, the air outlet 53 opens downward with respect to the center line P in the direction along the air flow in the filter housing chamber 1b. The reason is that the air cleaner of the present embodiment is attached to the ceiling side of the room R, so that the purified air is blown out from the air outlet 53 toward the room R below. As shown in FIG. 2, the normal 53m of the outlet 53 is inclined in a direction away from the filter housing chamber 1b as it moves downward. In addition to the function of blowing the purified air flow toward the room R, the air outlet 53 can also function as a filter inlet / outlet for taking in and out the filter 3 as described later.
[0017]
The blow-out grill 54 is made of resin, faces the room R, and has a large number of grill blow-out openings 55. The size of the blowout grill 54 is smaller than that of the intake grille 51. The grill outlet 55 communicates with the filter housing chamber 1b and the room R.
[0018]
As shown in FIG. 1, in the air flow path 1c in the main body 1, from the upstream side to the downstream side, the fan 2 facing the air inlet 10t, the filter 3 mainly capturing dust and the like, mainly smells such as cigarettes, etc. The photocatalyst holder 4 to be removed is arranged in order. The fan 2 is a centrifugal fan (for example, a multiblade radial fan), and includes a plurality of rotary blades 20 and a drive unit 21 that drives the rotary blades 20.
[0019]
In the filter housing chamber 1b of the back plate 11 constituting the main body 1, as shown in FIG. 1, the recess portion 15 is formed by retracting the wall portion 11w of the back plate 11 in the direction in which the volume of the filter housing chamber 1b increases. Is formed. The recess 15 is arranged on the upper side of the filter housing chamber 1b and can function as a turning promotion space for turning the filter 3 as can be understood from the description below. As can be understood from FIG. 2, the wall portion 11 w forming the recess 15 in the back plate 11 extends along the center line P of the filter housing chamber 1 b oriented along the air flow. As can be understood from FIG. 2, the recess 15 is provided on the opposite side of the air outlet 53 that is also the filter inlet / outlet via the center line P of the filter housing chamber 1b. As shown in FIG. 2, the recess depth H <b> 1 of the recess 15 is set to be considerably smaller than the height HA of the filter 3. Note that the recess length L1 of the recess 15 is slightly smaller than the length LA of the filter 3. A first guide portion 17 is formed at the upstream end of the recessed portion 15 at the upstream side of the filter housing chamber 1b. The first guiding portion 17 has an inclination toward the lower side (filter housing chamber 1b) as it goes upstream. A second guide portion 18 is formed at the downstream end of the filter storage chamber 1b. The second guide portion 18 has an inclination toward the lower side (filter storage chamber 1b) as it goes downstream.
[0020]
The filter 3 is detachably housed in the filter housing chamber 1b, and is a dust collection filter mainly for dust collection. As shown in FIG. 3, a thin plate-like filter material having air permeability and flexibility is used. It is formed by being woven into a pleat shape so as to alternately form peaks 3m and valleys 3n, and the overall appearance is substantially a square box (length LA, height HA, width DA, FIG. 2 and FIG. 3), and has an upper surface portion 3u, a lower surface portion 3d, and a side surface portion 3e as shown in FIG. The filter material constituting the filter 3 has a laminated structure in which a layer containing activated carbon as a main component and a layer subjected to charging treatment are laminated, and dust trapping property is improved. As shown in FIG. 2, the end surface 3fo of the upstream end 3f of the filter 3 is engaged with the filter upstream engagement portion 19 of the back plate 11 of the main body 1, whereby the air flowing through the air flow path 1c is recessed 15 It seals so that it may not enter in, and positions the filter 3 in the insertion direction. As shown in FIG. 3, the filter upstream engagement portion 19 extends along the width direction (arrow E direction) of the main body 1, and seals the entire width or almost the entire width of the end surface 3 fo of the upstream end 3 f of the filter 3. Yes.
[0021]
As shown in FIG. 2, the end surface 3ro of the downstream end 3r of the filter 3 is slightly engaged with the filter downstream engagement portion 1x held by the back plate 11 of the main body 1, and the insertion of the filter 3 is also performed thereby. Positioning in the direction and prevention of rattling of the filter 3 are performed. As shown in FIG. 2, the inclined guide surface 1y, which is the lower surface of the filter downstream engaging portion 1x, is inclined downward toward the blowing grill 54 as it moves downstream, and the inclination of the filter 3 to be taken in and out It has a function that can promote the operation.
[0022]
Further, a cushion material 31 is held on the lower surface portion 3d, the upper surface portion 3u, and the side surface portion 3e of the downstream end 3r of the filter 3 in order to improve the sealing performance and further suppress the shakiness of the filter 3. That is, as shown in FIG. 2, the cushion material 31 of the upper surface portion 3 u of the filter 3 comes into contact with the downstream end of the recessed portion 15, so that the sealing performance of the upper surface portion 3 u of the filter 3 is maintained well, and the filter 3 The rattling is further prevented. As shown in FIG. 2, when the blow grill 54 is closed, the pushing convex portion 57 of the blow grill 54 is pushed into the cushion material 31 of the lower face portion 3 d of the filter 3, so that the sealing property of the lower face portion 3 d of the filter 3 is improved. While maintaining favorable, the shakiness of the filter 3 is further suppressed.
[0023]
As described above, since the filter 3 is housed in the filter housing chamber 1b in a sealed state, the air flowing through the air flow path 1c is suppressed from passing through the recess 15 and passes through the filter 3 reliably. become. On the upper part of the downstream end 3r of the filter 3, a tab 33 that can function as a filter tension member is integrally provided. When the tab 33 is pulled with a fingertip or the like, the filter 3 in the filter housing chamber 1 b can be pulled out toward the outlet 53.
[0024]
In the present embodiment, the photocatalyst holder 4 is detachably held on the rear surface 54r side of the blowing grill 54. Therefore, when the blowout grill 54 is removed from the blowout port 53 of the intake grille 51 attached to the main body 1, the photocatalyst holder 4 is automatically removed from the main body 1 as well. Furthermore, since the photocatalyst holder 4 can also be removed from the blowing grill 54, it is advantageous for exchanging the photocatalyst 40 in the photocatalyst holder 4. The photocatalyst holder 4 is a deodorizing filter mainly intended for deodorization, and is provided on the downstream side of the filter 3 so that the lower surface 4 d faces the blowing grill 54 and the upper surface 4 u faces the excitation means 49. The photocatalyst holder 4 has a window for air permeability, and is formed into a thin or flat box shape with a first case 41 and a second case 46 that are detachably attached to each other, as described above. The photocatalysts 40 are accommodated at a high density so as not to rattle a large number of photocatalysts 40.
[0025]
The photocatalyst 40 is a microsphere, and TiO ₂ Is the main ingredient. As shown in FIG. 8, on the side of the photocatalyst holder 4 facing the excitation means 49, a metal mesh member 42 having a large number of mesh openings 42f is arranged so as to face the window 41x of the first case 41. Has been. Further, on the side facing the excitation means 49, there are a mesh member 44 having a large number of mesh openings 44f, coated with a polymer material such as rubber or resin, and a metal mesh member 43 having a large number of mesh openings 43f. A lower side of the photocatalyst 40 is laid so as to face the window 46x of the second case 46. Therefore, as the distance from the excitation means 49 increases, that is, along the direction of the arrow K1 (air flow direction) shown in FIG. 8, the metal mesh member 42, the photocatalyst 40, the polymer material mesh member 44, and the metal system The mesh members 43 are arranged in this order. As shown in FIG. 9, the metal mesh members 42 and 43 are formed by braiding metal wire materials 42a and 43a in a net shape. As shown in FIG. 10, the mesh member 44 made of a polymer material is formed by weaving a wire 44a in which a core layer 44b of nylon or the like is coated with a soft layer 44c of urethane or the like into a net, so that the particulate photocatalyst 40 is formed. Excellent protection against. As can be understood from FIGS. 9 and 10, the mesh diameter ZA of the metal mesh members 42, 44 and the mesh diameter ZB of the polymer material-based mesh member 44 are approximately the same, both of which are particulate photocatalysts. It is set smaller than the outer diameter ZE of 40. Therefore, the particulate photocatalyst 40 is prevented from dropping from the mesh of the mesh members 42, 43, 44 of the photocatalyst holder 4. In such a photocatalyst holder 4, the microspherical photocatalyst 40 can be accommodated in the photocatalyst holder 4 at a high density while preventing the microspherical photocatalyst 40 from falling off, and the microspherical photocatalyst 40 does not rattle. And air permeability is also ensured.
[0026]
The excitation means 49 excites the photocatalyst 40 and is held above the photocatalyst holder 4 so as to face the photocatalyst holder 4. The excitation means 49 is formed by arranging a large number of light emitting diodes 49m in parallel, and has a thin or flat shape as a whole. The light emitting diode 49m is formed of a gallium nitride based optical semiconductor, and irradiates the photocatalyst 40 with light having a short wavelength (wavelength 360 to 400 nm), and is exposed to the air flow path 1c. When the light from the light emitting diode 49m is irradiated, the photocatalyst 40 is excited and activated, and the action of decomposing a substance such as an odor substance adhering to the photocatalyst 40 is enhanced. Since the excitation means 49 is arranged on the downstream side of the filter 3 for removing dust, it is possible to prevent dust contained in the air flow from adhering to the light emitting diode 49m, and to secure the light amount of the light emitting diode 49m over a long period of time. This is advantageous, and as a result, it is advantageous for ensuring the purifying ability of the photocatalyst 40 activated by the light emitted from the light emitting diode 49m.
[0027]
The air cleaner according to the present embodiment is attached to the ceiling side of the vehicle using a claw member 90 provided on the rear side in FIG. 3, a fitting inserted through the insertion hole 14 of the fixing portion 13, and the like. Since the main body 1, the excitation means 49, and the photocatalyst holder 4 are thin, it can contribute to the thinning of the air cleaner according to the present embodiment. Such a thin air cleaner is arranged without a sense of incongruity along the ceiling wall portion 200 even in a narrow room R, which is advantageous for securing a wide room R in the vehicle body. The ceiling wall part 200 includes an inner layer 202 and an outer layer 201.
[0028]
The structure for attaching the above-described photocatalyst holder 4 to the blowing grill 54 will be described. As shown in FIG. 11, a plurality of holder engaging portions 4 p protrude from the side surface of the photocatalyst holder 4. If the photocatalyst holder 4 is moved and pressed against the blowing grill 54 in the direction of the arrow UA, the holder engaging portion 4p of the photocatalyst holder 4 is engaged with the holder engaged portion 54p of the blowing grill 54, and the photocatalyst holder 4 is moved to the blowing grill 54. 54 is detachably attached. When the front and back of the photocatalyst holder 4 are reversed, the projection 4s of the photocatalyst holder 4 hits the projection 54s of the blowout grill 54, and therefore the photocatalyst holder 4 cannot be attached to the blowout grill 54. Therefore, the photocatalyst holder 4 is always attached to the blow grill 54 so that the polymer material-based mesh member 44 is on the lower surface side of the photocatalyst holder 4. Accordingly, the protrusion 4s can function as a means for preventing reverse mounting of the photocatalyst holder 4. When removing the photocatalyst holder 44 from the blowing grill 54, as shown in FIG. 13, an insert such as a tool or a coin is inserted into the gap 54po between the holder engaging portion 4p and the holder engaged portion 54p to That is, if the biasing is performed in the direction of the arrow SC, the wall portion 54w having the holder engaged portion 54p is elastically deformed in the same direction, so that the holder engaging portion 4p of the photocatalyst holder 4 and the holder engaged portion 54p of the outlet grill 54 are provided. Is released, and the photocatalyst holder 4 is removed from the blowing grill 54.
[0029]
Next, the case where an air cleaner is used will be described. In the state shown in FIG. 1, the fan 2 is rotated and the light-emitting diode 49 m of the excitation means 49 emits light to activate the photocatalyst 40. The rotation of the fan 2 causes the air in the vehicle interior R to be sucked from the intake port 10t through the grill intake port 52 of the intake grille 51, and the air flow flows through the air flow path 1c and sequentially passes through the filter 3 and the photocatalyst 40. Purified. The purified air is blown into the room R from the grill outlet 55 of the outlet grill 54 through the outlet 53. By continuing such operation, the room R is gradually purified. Relatively large particles such as dust in the air are captured by the filter 3, and extremely fine particles such as odorous substance particles contained in the air are adsorbed by the photocatalyst 40. The substance attached to the photocatalyst 40 is gradually decomposed and removed. Therefore, both the filter 3 and the photocatalyst 40 can function as a purification unit that purifies the air flow.
[0030]
By the way, the above-mentioned blowing grill 54 may be removed from the blower outlet 53 of the main body 1. For example, the filter 3 or the photocatalyst 40 may be replaced. In this case, if the blowing grill 54 falls carelessly from the main body 1, the blowing grill 54 is damaged. Therefore, in this embodiment, the following characteristic configuration is adopted. That is, as shown in FIGS. 6 and 7, at one end portion of the blowout grill 54, a rotating arm portion 56 having a protruding engagement head 56v at the tip is projected. A first engagement portion 1m and a second engagement portion 51s that are close to each other and face each other via a space 51na are provided on the downstream side of the intake grill 51 that constitutes a part of the main body 1. As shown in FIGS. 6 and 7, the first engaging portion 1 m and the second engaging portion 51 s are opened in the direction (arrow B <b> 1, B <b> 2 direction) in which the blow grill 54 rotates to open and close the blow outlet 53. A second engaging portion 51s is disposed on the direction side (the front surface side of the intake grill 51), and a first engaging portion 1m is disposed on the closing direction side (the back surface side of the intake grill 51). Further, as shown in FIG. 7, the engagement end surface 1mo of the first engagement portion 1m and the engagement end surface 51so of the second engagement portion 51s are separated from each other in the direction of the arrow KX, which is the extending direction of the blowing grill 54. It is set so as to be shifted by Δmk. That is, the engagement end surface 1mo of the first engagement portion 1m and the engagement end surface 51so of the second engagement portion 51s are separated from each other in the direction of the arrow KX, which is the extending direction of the blow grill 54. Therefore, the engagement end surface 51so of the second engagement portion 51s is disposed on the side closer to the blowing grill 54 than the engagement end surface 1mo of the first engagement portion 1m in the arrow KX direction. The engagement end surface 1mo of the first engagement portion 1m is disposed on the side farther from the blowing grill 54 than the engagement end surface 51so of the second engagement portion 51s in the arrow KX direction.
[0031]
As shown in FIG. 7, when the rotation angle of the blowing grill 54 with respect to the main body 1 is small, the rotating arm portion 56 of the blowing grill 54 has a space 51na between the first engaging portion 1m and the second engaging portion 51s. Can be inserted and removed along the directions of arrows S1 and S2. As shown in FIG. 6, when the rotation angle of the blowing grill 54 with respect to the main body 1 is large, the rotating arm portion 56 of the blowing grill 54 engages with the engagement end surface 51so of the second engagement portion 51s, and The part of the back surface 56r of the surface 56f engaged with the second engaging portion 51s in the rotating arm portion 56 of the blowout grill 54 is engaged with the first engaging portion 1m. In this state, as can be understood from FIG. 6, the rotating arm portion 56 of the blowing grill 54 is engaged with the two-point support structure of the first engaging portion 1 m and the second engaging portion 51 s in the rotated position. Has been. Therefore, the blown grill 54 in the rotated state is temporarily held in the main body 1 as it is in a rotated state without falling naturally. That is, in FIG. 6, due to the weight of the blow grill 54, the blow grill 54 rotates in the clockwise direction with the rotating arm portion 56 serving as the rotation center region due to the moment Mc acting on the blow grill 54 in FIG. I'm sorry. However, since the 1st engaging part 1m which functions as a stopper engages with the rotation arm part 56 of the blowing grill 54, rotation of the blowing grill 54 is stopped in the rotation position. As a result, the blow-out grill 54 is temporarily held so as not to fall spontaneously in a state in which it is rotated. Therefore, when removing the blowing grill 54, even if an operator removes the fingertip from the rotated blowing grill 54, the blowing grill 54 is prevented from falling naturally, and the photocatalyst holder resulting from the natural falling of the blowing grill 54 is prevented. 4 and the photocatalyst 4 can be prevented from being damaged.
[0032]
In addition, since it is thought that the one where the blowing grill 54 has a certain weight is too light compared with the case where the blowing grill 54 is too lightweight, The temporary holding posture is stabilized. In this regard, in this embodiment, the blow-out grill 54 is integrally provided with the photocatalyst holder 4 in which the particulate photocatalyst 40 is incorporated, so that it has a certain amount of weight and can stabilize the temporary holding posture.
[0033]
In addition, in this embodiment, as shown in FIGS. 6 and 7, an engaging head 56v is provided at the tip of the rotating arm portion 56, and the engaging head 56v is connected to the first locking portion 1m. Because of the engagement, it is possible to further improve the disengagement property between the rotating arm portion 56 and the first locking portion 1m, and it is possible to further improve the temporary holding property of the blowout grill 54 in the rotated state.
[0034]
Further explanation will be added. When the photocatalyst 40 and the filter 3 are replaced, as shown in FIG. 2, a grill engaging claw 54x is provided as a grill engaging portion on the other end side of the blowing grill 54. Inserts SA such as tools, coins, and fingertips are inserted into the gaps 51n between the 54x and the grill engaging claws 51x of the intake grille 51, and appropriately rotated. As a result, at least one of the grill engaging claws 54x and 51x is appropriately elastically deformed, and the engagement between the grill engaging claws 54x and the grill engaging claws 51x is released. Then, as shown in FIG. 4, the blow-out grill 54 to which the photocatalyst holder 4 is integrally attached is lowered while rotating by its own weight in the direction of the arrow B1, with the vicinity of the rotation arm portion 56 as a rotation center region. To do. In this state, as can be understood from the above, the rotating arm portion 56 of the blowing grill 54 is engaged with the first engaging portion 1m and the second engaging portion 51s, and as a result, the rotated blowing grill 54 is It is temporarily held by the main body 1 without falling naturally. Thereafter, as shown in FIG. 7, if the entire blowing grill 54 is lifted by a small amount in the direction of the arrow B <b> 2 (the closing direction) and the rotation angle of the blowing grill 54 with respect to the main body 1 is reduced, The engagement with the first engaging portion 1m and the second engaging portion 56s is automatically released. As a result, the rotating arm portion 56 can be inserted and removed from the space 51na between the first engaging portion 1m and the second engaging portion 51s. If the blowing grill 54 is moved in the arrow B3 direction (see FIGS. 7 and 4) in such a state that it can be inserted and removed, the blowing grill 54 can be easily removed from the intake grill 51 on the main body 1 side. The air outlet 53 can be opened. The above-described operation can be performed simply by lifting the blowing grill 54 that has been temporarily held by rotating downward and removing the rotating arm portion 56 from the space 51na. Can do.
[0035]
After removing the blowing grill 54 from the intake grill 51 as described above, the photocatalyst holder 4 is removed from the blowing grill 54. Then, it is replaced with a new photocatalyst holder 4. A new photocatalyst holder 4 is attached to the blowing grill 54. After that, as described above, the turning arm portion 56 of the blowing grill 54 is inserted into the space 51m between the first engaging portion 1m and the second engaging portion 56s, and the blowing grill 54 is turned upward in the arrow B2 direction. As shown in FIG. 2, the grill engaging claw 54 x of the blow grill 54 and the grill engaging claw 51 x of the intake grill 51 are engaged, and the blow grill 54 is detachably attached to the intake grill 51.
[0036]
As shown in FIG. 1, the blow-out grill 54 attached to the intake grill 51 on the main body 1 side and having the blow-out port 53 closed closes toward the grill engaging claws 54x from the rotating arm portion 56 side. Inclined so that it faces upward.
[0037]
Next, a description will be given of a mode in which the filter 3 is attached to the air cleaner. In this case, the filter 3 is pushed and moved from the downstream side to the upstream side along the air flow path 1c. That is, as can be understood from FIG. 5, the blowout grill 54 is separated from the blowout port 53 of the intake grille 51 of the main body 1, and the blowout port 53 which is also a filter inlet / outlet is opened. As shown in FIG. 5, the filter 3 is inclined obliquely so that the upstream end 3f is on the upper side and the downstream end 3r is on the lower side. The filter 3 in this state is inserted from the upstream end 3f of the filter 3 through the outlet 53 of the intake grille 51 toward the filter housing chamber 1b along the direction of the arrow D4. At this time, the vicinity of the upstream end 3 f of the filter 3 can be satisfactorily guided by the tilt guide action of the tilt guide surface 1 y of the filter downstream engagement portion 1 x and the second guide portion 18 of the recess 15. Then, the upper part of the upstream end 3f of the filter 3 is made to enter the recessed part 15, and the filter 3 is swung while being gradually pushed closer to the horizontal so that the filter 3 follows the flat filter housing chamber 1b. Since the recess 15 is formed facing the filter housing chamber 1b, the turning operation for turning the obliquely inclined filter 3 substantially horizontally becomes easy. Particularly in the present embodiment, if the upstream end 3f of the filter 3 hits the first guide portion 17, the upstream end 3f of the filter 3 can be guided downward by the inclination guide action of the first guide portion 17, The turning operation for causing the filter 3 to turn sideways (substantially horizontal) becomes even easier.
[0038]
After the filter 3 is attached to the filter housing chamber 1b as described above, the outlet grill 54 is attached to the outlet 53 of the intake grill 51 as described above. That is, as described above, the rotating arm portion 56 of the blowing grill 54 is inserted into the space 51na between the first engaging portion 1m and the second engaging portion 51s of the intake grill 51, and the blowing grill 54 is By turning upward in the direction of the arrow B 2, the grill engaging claw 54 x of the blowing grill 54 and the grill engaging claw 51 x of the intake grill 51 are engaged, and the blowing grill 54 is attached to the intake grill 51.
[0039]
Next, the case where the filter 3 is removed from the filter housing chamber 1b of the main body 1 will be described. In this case, basically, the operation reverse to that for attaching the filter 3 to the filter housing chamber 1b may be performed, and the filter 3 in the filter housing chamber 1b is pulled from the upstream side to the downstream side of the air flow path 1c. To move. That is, the blow grill 54 is first removed from the intake grill 51 of the main body 1 and the blow outlet 53, which is also the filter entrance, is opened. As can be understood from FIG. 5, the filter 3 is pulled out from the filter housing chamber 1 b while pulling the tab 33 connected to the upper portion of the downstream end 3 r of the filter 3 toward the blowout port 53 in the direction of the arrow D <b> 5. At this time, the filter 3 is further pulled out while turning so that the downstream end 3r of the filter 3 is obliquely downward so that the upper part of the upstream end 3f of the filter 3 enters the recess 15. In the present embodiment, since the recess 15 is formed in the upper part of the filter housing chamber 1b, when pulling out, the substantially horizontal filter 3 has the upstream end 3f on the upper side and the downstream end 3r on the lower side. Thus, it is easy to perform a turning operation while inclining. Particularly in the present embodiment, the operation of turning the filter 3 obliquely becomes easier by the tilt guide action of the second guide portion 18 and the tilt guide surface 1y provided downstream of the recess portion 15. After pulling out as described above, the filter 3 is cleaned or replaced. Then, the cleaned or replaced filter 3 is reattached to the filter housing chamber 1 b as described above, and the blowout grill 54 is attached to the blowout port 53 of the intake grille 51 fixed to the main body 1.
[0040]
As described above, in this embodiment, the recess 15 provided on the opposite side of the air outlet 55 that is the filter inlet / outlet is used to rotate the filter 3, and the air channel 1 c extends from the air outlet 55 that is the filter inlet / outlet. The filter 3 is moved in and out by moving the filter 3 along the installation direction (direction from the upstream to the downstream of the air flow, or from the downstream to the upstream of the air flow). Since the filter 3 can be moved in and out along the extending direction of the air flow path 1c through which the air flow flows in this way, an advantage that the air flow path 1c and the filter insertion path can be shared is obtained. This is advantageous for reducing the size of the main body 1.
[0041]
(Other)
In the above-described embodiment, both the first engagement portion 1m and the second engagement portion 51s are provided on the intake grill 51 on the main body 1 side, but this is not a limitation, and in short, on the main body 1 side. It only has to be provided. In the above-described embodiment, the photocatalyst holder 4 is held by the blowout grill 54, but not limited to this, a filter for collecting dust may be held, or nothing is held by the blowout grill 54. It does not have to be. In the above-described embodiment, the present invention is applied to the blow-out grill 54, but it can also be applied to an intake-side grill (not shown). In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention. The above-described embodiments are examples of the concept of the present invention, and the words, members, and words that modify the members described in the embodiments can be described in each claim even if they are only a part.
[0042]
(Supplementary note) The following technical idea can be grasped from the above description.
-In each claim, the engagement end surface of a 1st engagement part and the engagement end surface of a 2nd engagement part are spaced apart in the extending direction of a blowing grill, The engagement end surface of a 2nd engagement part is The engagement end surface of the first engagement portion is disposed on the side of the blowout grille, and the engagement end surface of the first engagement portion is disposed on the side farther from the blowout grille than the engagement end surface of the second engagement portion. An air purifier characterized by being made.
In each claim, the grill attached to the air cleaner main body is inclined so as to approach the attached portion side (ceiling side) from the rotating arm portion side toward the grill engaging portion. An air purifier characterized by that.
The air cleaner according to claim 4, wherein at least one of the photocatalyst holder and the grill has a reverse-side reverse mounting preventing means for preventing the photocatalyst holder from being attached to the grill when the front and back are reversed.
-In claim 1. An air cleaner characterized in that the grill is at least one of a blow-out grill and an intake grill.
[0043]
【The invention's effect】
According to the present invention, the air cleaner body has the first engagement portion and the second engagement portion that face each other close to each other through the space, and the first engagement portion and the second engagement portion of the air cleaner body. The joint portion allows the rotation arm portion of the grill to be inserted into and removed from the space between the first engagement portion and the second engagement portion when the rotation angle of the grill with respect to the air purifier main body is small. When the rotation angle of the grill with respect to the main body is large, the rotation arm portion of the grill is engaged with the second engagement portion, and the back surface of the surface that engages with the second engagement portion of the rotation arm portion of the grill The grille is temporarily held in the air cleaner main body by engaging the portion with the first engagement portion. Therefore, when the blowout grill is removed from the air cleaner body, the rotation angle of the grill with respect to the air cleaner body is reduced, and the rotating arm portion of the grill is placed between the first engagement portion and the second engagement portion. When the grill is pulled out in a state where it can be inserted into and removed from the space, it can be pulled out from the main body of the air cleaner. Such an operation can be easily performed with one hand of the operator, and the operability is improved.
[Brief description of the drawings]
FIG. 1 is a sectional view of an air cleaner according to an embodiment of the present invention.
FIG. 2 is an enlarged sectional view of the vicinity of a filter and a photocatalyst holder of an air cleaner according to one embodiment of the present invention.
FIG. 3 is a plan view of an air cleaner according to an embodiment of the present invention.
FIG. 4 is an enlarged cross-sectional view showing a form in which the blowout grill is rotated downward and temporarily held according to one embodiment of the present invention.
FIG. 5 is an enlarged cross-sectional view schematically showing a process of inserting / removing a filter into / from a filter housing chamber of a main body of an air purifier according to an embodiment of the present invention.
FIG. 6 is a partially enlarged cross-sectional view showing a state in which the rotation angle of the blow grill is large and the rotary arm portion of the blow grill is engaged with the first engagement portion and the second engagement portion.
FIG. 7 is a partial enlarged cross-sectional view showing a state in which the rotation angle of the blow grill is small and the rotary arm portion of the blow grill is detachable from the first engagement portion and the second engagement portion.
FIG. 8 is a partially enlarged cross-sectional view showing the vicinity of a photocatalyst holder and excitation means attached to a blowing grill.
FIG. 9 is a partially enlarged view showing a mesh member.
FIG. 10 is a partially enlarged view showing a mesh member.
FIG. 11 is a side view showing a state immediately before the photocatalyst holder is attached to the blowing grill.
FIG. 12 is a side view showing a state after the photocatalyst holder is attached to the blowing grill.
FIG. 13 is a cross-sectional view showing the vicinity of the holder engaging portion in a state after the photocatalyst holder is attached to the blowing grille, showing a cross section along line W17-W17 in FIG.
[Explanation of symbols]
In the figure, 1 is a main body (air purifier main body), 1c is an air flow path, 1m is a first engagement part, 2 is a fan, 3 is a filter (purification part), 4 is a photocatalyst holder, and 40 is a photocatalyst (purification part). ), 49 is an excitation means, 51 is an intake grille (decorative plate), 51s is a second engagement part, 51na is a space, 54 is a blowout grille, 54x is a grille locking claw (grill engagement part), and 56 is rotating Each arm is shown.

Claims (4)

An air inlet and an air outlet, an air flow path connecting the two, a fan that forms an air flow that flows from the air inlet to the air outlet through the air flow path, and a purification unit that purifies the air flow flowing through the air flow path An air purifier body having
An air cleaner having a grill that covers at least one of the air inlet and the air outlet of the air cleaner body so as to allow ventilation and is rotatably attached to the air cleaner body.
The grill is provided with a rotating arm portion provided at one end portion of the grill and serving as a rotation center region of the grill, and a grill member provided at the other end portion of the grill and detachably engaged with the air purifier main body. With a joint,
The air purifier main body has a first engaging portion and a second engaging portion that face each other close to each other through a space,
The first engagement portion and the second engagement portion of the air cleaner body are:
When the rotation angle of the grill with respect to the air cleaner body is small, the rotation arm portion of the grill can be inserted into and removed from the space between the first engagement portion and the second engagement portion;
When the rotation angle of the grill with respect to the air cleaner body is large, the rotation arm portion of the grill is engaged with the second engagement portion, and the second engagement of the rotation arm portions of the grill is performed. An air cleaner characterized in that a portion of the rear surface of the surface that engages with the portion is engaged with the first engaging portion, and the grill is temporarily held in the air cleaner body while maintaining the grille in a rotating position. 2. The air purifier main body according to claim 1, wherein the air purifier main body includes the intake port, the air flow path, the fan, a body having the purifying unit, and a decorative board attached to the body. Has the first engagement portion and the second engagement portion. 3. The air cleaner according to claim 1, wherein the grill is equipped with a photocatalyst holder for holding a photocatalyst. 4. The air cleaner according to claim 3, wherein the photocatalyst holder is detachable from the grill.

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