JP2010128394A - Projector device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector device which efficiently removes dust of an air filter regardless of an orientation of arrangement of the air filter, and is easy in maintenance. <P>SOLUTION: The projector device includes: a blower 10 which exhaust outside air from an exhaust port after sucking the outside air from an air suction port 4 and cooling the inner part of a body 2a; an air filter 16 arranged crossing an air channel 9 communicating the air suction port 4 and the exhaust port and collecting dust contained in the outside air; a dust removing body 26; and a dust accommodation part 25a which accommodates the removed dust. The dust removing body 26 consists of a dust removing brush 23 arranged out of the air channel 9 and removing dust of the air filter 16; and a removing brush 24 which removes dust attached to the dust removing brush 23. The tip of the dust removing brush 23 and/or the removing brush 24 is inclined to pierce the dust containing part 25a. Dust is reliably removed even when the air filter 16 is arranged in any orientation inside the body 2a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a projector apparatus, and more particularly to a projector apparatus having a mechanism for cleaning an air filter.

  As a conventional projector device of this type, a feed reel, a take-up reel arranged with a gap between the feed reel, one end locked and wound on the feed reel, and the other end wound on the take-up reel A roll-shaped air filter that is locked to the disk and a drive unit that rotationally drives the take-up reel, and a portion of the air filter that is positioned between the feed reel and the take-up reel is provided in the projector device. There is one that is arranged in front of the air cooling inlet, and energizes the driving means at predetermined time intervals during operation of the projector device, and sequentially winds the dirty air filter around the take-up reel ( For example, see Patent Document 1).

  However, in the configuration of the conventional projector apparatus as described in Patent Document 1, there is no mechanism for automatically removing dust adhering to the air filter, and the air filter clogged with dust is simply wound around the take-up reel. When the entire length of the air filter was clogged, it was necessary to remove the air filter along with the take-up reel, widen the air filter and clean it, and the cleaning work was very troublesome.

In order to solve this problem, an air filter that can be moved along or rotated on the outside air intake provided in the projector device, and a drive mechanism unit for moving or rotating the air filter And a brush that slidably contacts the air filter and removes adhering dust.When a clogging sensor senses that a certain amount of dust has accumulated in the air filter, or a predetermined time has passed. In some cases, the air filter is moved or rotated by a driving mechanism unit, and dust or dust attached to the air filter is removed with a brush in the meantime (see, for example, Patent Document 2).
JP-A-8-128400 JP 2008-065021 A

  Since the conventional projector device described in Patent Document 2 is provided with a brush that removes dust adhering to the air filter, dust can be reliably removed from the air filter. In order to prevent the removed dust from re-adhering to the air filter, the air filter must be installed horizontally as shown in FIG. 2, which increases the height of the projector device. There was a problem that it was subject to design constraints.

  Further, since only the brush removes dust adhering to the upstream side of the air filter, there is a problem that when dust removed from the air filter remains on the brush, the dust reattaches to the air filter.

  Further, in the conventional projector device described in Patent Document 2, in which the air filter is rotated at the time of cleaning the air filter, a brush for removing dust is disposed on the outside air passage surface of the air filter. Therefore, the effective filtration area of the air filter is reduced, the air filter is clogged earlier, and as a result, the number of times of dust removal is increased and the life of the drive mechanical unit is shortened.

  The present invention solves the above-described conventional problems, and efficiently removes dust from the air filter regardless of the orientation of the air filter while effectively utilizing the filtration area of the air filter, and the dust exhaust frequency. It is an object of the present invention to provide a projector device that is less in maintenance and easy to maintain.

  In order to solve the above-described conventional problems, a projector device according to the present invention includes an air passage that communicates an intake port and an exhaust port, an outside air that is sucked into the main body from the intake port, and is then exhausted from the exhaust port. An air filter that collects dust contained in the outside air that is arranged across the air passage and is taken in from the air inlet, and an image display element body that includes a light source lamp, etc. Adhering to the air filter, a projection body composed of a lens or the like provided so as to be able to enlarge and project an image from the image display element body, a control body composed of the image display element body and electronic parts for controlling the projection body, and the like A dust remover that removes the dust, a dust container that contains the dust removed from the air filter, and the dust remover and / or the air filter that rotates or moves. A dust removing brush disposed on the outside of the air passage and in contact with the upstream surface of the air filter to remove dust attached to the air filter, and attached to the dust removing brush. The dust removing brush and / or the removing brush are inclined so that the tip of the dust removing brush and / or the removing brush is pierced with respect to the dust storage unit side. The dust filter attached to the air filter is first removed with a dust removal brush, and the dust attached to the dust removal brush is removed with a removal brush so that the air filter is arranged in any orientation in the projector device. In addition, dust adhering to the air filter can be reliably removed.

  In addition, since the tip of the dust removal brush and / or the removal brush is inclined so as to pierce the dust storage portion, the dust attached to the dust removal brush and the removal brush surely moves to the dust storage portion. Thus, once removed, the dust does not reattach to the air filter.

  Further, since the dust removal brush is provided outside the air passage, that is, outside the ventilation area through which the outside air of the air filter passes, the dust removal brush does not hinder the passage of outside air, and the filtration area of the air filter is reduced. Can be used effectively.

  In addition, the dust removal of the air filter by the dust removal brush is performed outside the air passage through which the outside air passes, so the dust once collected by the suction wind acting on the air filter and the action of the dust removal brush is removed from the air filter. There is no passing.

  In addition, the dust removal of the air filter is surely performed with a dust removal brush without bothering the user, and the air filter is always kept clean, so there is little air pressure loss at the air filter, and the inside of the projector device Since the projector can be efficiently cooled, it is possible to provide a projector device with excellent reliability.

  According to another aspect of the invention, there is provided a projector device comprising: an air passage that communicates an intake port and an exhaust port; a blower that sucks outside air from the intake port into the main body and cools the interior; An image display element body composed of a lens, a projection body composed of a lens or the like provided so that an image from the image display element body can be enlarged and projected, and an electronic component that controls the image display element body and the projection body A control body and an air filter cleaning mechanism are provided, and the air filter cleaning mechanism is disposed in the vicinity of the air inlet and in the middle of the air passage and across the ventilation passage. In addition, an air filter that collects dust and the like contained in the outside air taken in from the intake port, a dust remover that removes dust attached to the air filter, and the air filter A dust storage portion for storing the dust removed from the surface, and drive means for rotating or moving the dust remover and / or the air filter, and the dust remover is disposed outside the ventilation passage portion. A dust removing brush that contacts the upstream surface of the air filter and removes dust adhering to the air filter; and a removal brush that removes dust adhering to the dust removing brush, and the tip of the dust removing brush and / or the removing brush The dust removal body is composed of a dust removal brush and a removal brush, and dust adhering to the air filter is first removed with the dust removal brush, and the dust removal brush is used as the dust removal body. By removing the adhering dust with a removal brush, the air filter can be used in any orientation in the projector. The dust attached to Iruta can be reliably removed.

  In addition, since the tip of the dust removal brush and / or the removal brush is inclined so as to pierce the dust storage portion, the dust attached to the dust removal brush and the removal brush surely moves to the dust storage portion. Thus, once removed, the dust does not reattach to the air filter.

  Further, since the dust removal brush is provided outside the air passage, that is, outside the ventilation area through which the outside air of the air filter passes, the dust removal brush does not hinder the passage of outside air, and the filtration area of the air filter is reduced. Can be used effectively.

  In addition, the dust removal of the air filter by the dust removal brush is performed outside the air passage through which the outside air passes, so the dust once collected by the suction wind acting on the air filter and the action of the dust removal brush is removed from the air filter. There is no passing.

  In addition, the dust removal of the air filter is surely performed with a dust removal brush without bothering the user, and the air filter is always kept clean, so there is little air pressure loss at the air filter, and the inside of the projector device Since the projector can be efficiently cooled, it is possible to provide a projector device with excellent reliability.

  The projector device of the present invention efficiently removes the dust of the air filter regardless of the orientation of the air filter while effectively utilizing the filtration area of the air filter, and the frequency of exhausting the dust is low, so that the maintenance is very easy. Easy.

  A first aspect of the invention includes an air passage that communicates an intake port and an exhaust port, a blower that sucks outside air from the intake port into a main body and cools the inside, and then exhausts the air from the exhaust port. An air filter that collects dust and the like contained in the outside air taken in from the air intake port, an image display element body including a light source lamp, and an image projected from the image display element body A projecting body comprising a lens or the like, a control body comprising an electronic component for controlling the image display element body and the projecting body, a dust removing body for removing dust attached to the air filter, and the air A dust storage unit for storing the dust removed from the filter; and a driving unit for rotating or moving the dust remover and / or the air filter, wherein the dust remover is disposed outside the air passage. And a dust removing brush that contacts the upstream surface of the air filter and removes dust adhering to the air filter, and a removal brush that removes dust adhering to the dust removing brush, and the dust removing brush and / or The tip of the removal brush is tilted so as to pierce the dust storage part, and the dust removal body is composed of a dust removal brush and a removal brush, and dust attached to the air filter is first removed with the dust removal brush. By removing the dust adhering to the dust removing brush with the removing brush, it is possible to reliably remove the dust adhering to the air filter regardless of the orientation of the air filter in the projector apparatus.

  In addition, since the tip of the dust removal brush and / or the removal brush is inclined so as to pierce the dust storage portion, the dust attached to the dust removal brush and the removal brush surely moves to the dust storage portion. Thus, once removed, the dust does not reattach to the air filter.

  Further, since the dust removal brush is provided outside the air passage, that is, outside the ventilation area through which the outside air of the air filter passes, the dust removal brush does not hinder the passage of outside air, and the filtration area of the air filter is reduced. Can be used effectively.

  In addition, the dust removal of the air filter by the dust removal brush is performed outside the air passage through which the outside air passes, so the dust once collected by the suction wind acting on the air filter and the action of the dust removal brush is removed from the air filter. There is no passing.

  In addition, the dust removal of the air filter is surely performed with a dust removal brush without bothering the user, and the air filter is always kept clean, so there is little air pressure loss at the air filter, and the inside of the projector device Since the projector can be efficiently cooled, it is possible to provide a projector device with excellent reliability.

  In the second invention, in particular, the dust storage case having the dust remover of the first invention and / or the dust storage section is detachably provided on the projector apparatus body, and the dust remover is detachably attached to the projector apparatus body. When provided, cleaning and maintenance of the dust remover are facilitated, and when the dust storage case is detachably provided on the projector apparatus main body, the disposal of the dust is facilitated.

  A third invention includes an air passage that communicates an intake port and an exhaust port, a blower for sucking outside air from the intake port into the main body and cooling the inside, and then exhausting the air from the exhaust port, a light source lamp, and the like. An image display element body, a projection body made up of a lens or the like provided so as to be able to enlarge and project an image from the image display element body, a control body made up of an electronic component for controlling the image display element body and the projection body, and the like An air filter cleaning mechanism, wherein the air filter cleaning mechanism is disposed in the vicinity of the intake port and in the middle of the air passage, and is disposed across the ventilation passage and the intake air. An air filter that collects dust and the like contained in the outside air taken from the mouth, a dust remover that removes dust adhering to the air filter, and dust that has been removed from the air filter are collected. And a drive means for rotating or moving the dust remover and / or the air filter, and the dust remover is disposed outside the ventilation passage and on the upstream surface of the air filter. A dust removing brush that removes dust adhering to the air filter and a dust removing brush that removes dust adhering to the dust removing brush, and the tip of the dust removing brush and / or the removing brush is placed on the dust container side. On the other hand, it is tilted so as to pierce, and the dust removing body is composed of a dust removing brush and a removing brush. By removing the dust, the dust adhering to the air filter can be used regardless of the orientation of the air filter in the projector. It can be reliably removed.

  In addition, since the tip of the dust removal brush and / or the removal brush is inclined so as to pierce the dust storage portion, the dust attached to the dust removal brush and the removal brush surely moves to the dust storage portion. Thus, once removed, the dust does not reattach to the air filter.

  Further, since the dust removal brush is provided outside the air passage, that is, outside the ventilation area through which the outside air of the air filter passes, the dust removal brush does not hinder the passage of outside air, and the filtration area of the air filter is reduced. Can be used effectively.

  In addition, the dust removal of the air filter by the dust removal brush is performed outside the air passage through which the outside air passes, so the dust once collected by the suction wind acting on the air filter and the action of the dust removal brush is removed from the air filter. There is no passing.

  In addition, the dust removal of the air filter is surely performed with a dust removal brush without bothering the user, and the air filter is always kept clean, so there is little air pressure loss at the air filter, and the inside of the projector device Since the projector can be efficiently cooled, it is possible to provide a projector device with excellent reliability.

  In the fourth invention, in particular, the air filter cleaning mechanism of the third invention is detachably provided on the projector apparatus main body, and since the air filter cleaning mechanism is detachable from the projector apparatus main body, the air filter cleaning mechanism, projector Each of the devices can be easily assembled, and maintenance such as inspection and repair of the air filter cleaning mechanism and the peripheral portion of the air filter can be facilitated only by removing the air filter cleaning mechanism from the projector apparatus main body. In addition, when the air filter cleaning mechanism is attached to the projector device main body, if the ventilation passage is in airtight communication with the intake port, outside air is sucked from the portion other than the intake port, and does not pass through the air filter. There is no direct intrusion into the projector device. Furthermore, since the air filter cleaning mechanism is detachable, it is possible to easily dispose of dust in the dust container.

  In addition, since the air filter is also included in the air filter cleaning mechanism, the contact state between the dust removing brush and the air filter can be easily checked when the air filter cleaning mechanism is removed, and maintenance is easy.

  According to a fifth aspect of the invention, in particular, the air filter is set at a predetermined angle according to the temperature or pressure of the passing air between the intake port and the exhaust port according to any one of items 1 to 4 or the accumulated operation time of the projector device. When the air filter is clogged, the temperature of the air passing between the intake port and the exhaust port increases or the pressure decreases. Further, when the projector device is used for a long time, the amount of dust on the air filter increases. Accordingly, the temperature or pressure of the air passing between the air inlet and the air outlet or the accumulated operating time of the projector device is estimated, and the air filter is rotated by a predetermined angle or moved by a predetermined distance accordingly. Since dust adhering to the air filter is removed, it is not necessary for the user to periodically check the air filter for contamination, or to remove the air filter cleaning mechanism every time for checking.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this Example.

  (Example 1)

  FIG. 1 is an external perspective view of a projector apparatus according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of the vicinity of a mounting portion of an air filter cleaning mechanism of the projector apparatus, and FIG. FIG. 4 is a perspective view showing the relationship of the air filter, and FIG. 4 is a diagram for explaining a cleaning operation by the air filter cleaning mechanism.

  In FIGS. 1-3, the projection body 3 which has the projection lens which projects an image in the front part of the main body 2a of the projector apparatus 2 in a present Example, the inlet 4 is on one side, Exhaust ports 5 are respectively formed.

  Inside the main body 2a, there are an image display element body 6 composed of a large number of electronic components and the like for optically processing an image projected by the projection body 3, and a power supply substrate body 7 for supplying power to the image display element body 6. The sensor 8 for detecting the temperature and pressure in the main body 2a and the air passage 9 communicating the intake port 4 and the exhaust port 5 are arranged to suck outside air from the intake port 4, and to display the image display element body 6 and the power source. A blower 10 for cooling a heat-generating component such as the substrate body 7 and exhausting it from the exhaust port 5, a control body 11 for controlling the image display element body 6, the blower 10, and the like are provided.

  A notification unit 12 is provided in front of or above the main body 2a. The notification section 12 includes an LED or the like, and displays the operation status of the main body 2a to notify the user.

  Reference numeral 14 denotes a guide wall that guides inflowing air when a part of the air passage 9 is formed, and a blower mounting wall 15 to which the blower 10 is fixed is provided at the rear portion of the guide wall 14.

  Reference numeral 16 denotes a substantially band-shaped air filter that is provided across the air passage 9 and that collects dust contained in the outside air that flows in from the intake port 4. A pair of slits that are provided to face the guide wall 14. The other end is fixed to a cylindrical driving reel 17 and the other end is fixed to a cylindrical driven reel 18. The length of the air filter 16 is such that at least all of the exposed portion of the air filter 16 is exposed to the air passage 9 when the driven reel 18 is rotated from the state where the air filter 16 is once wound on the drive reel 17 side. The length is set such that it can be brought into sliding contact with a dust removing brush 23 described later.

  The drive reel 17 is fixed to the reel body 17a to which one end of the air filter 16 is fixed, a rotating shaft 17b rotatably supported on the main body 2a, and the rotating shaft 17b, and a timing belt 21 described later is stretched. It is comprised from the pulley 17c. Reference numeral 19 denotes a first drive unit that is connected to the rotary shaft 17b and that drives the drive reel 17 to rotate.

  The driven reel 18 is fixed to the reel body 18a to which the other end of the air filter 16 is fixed, the rotary shaft 18b rotatably supported by the main body 2a, and the rotary shaft 18b, and one end is stretched around the pulley 17c. It comprises a pulley 18c on which the other end of the timing belt 21 is stretched, and a first gear 20 attached to the rotary shaft 18b. In the present embodiment, the first gear 20 is formed with two notches 20a on which teeth are not formed facing each other. Further, when the rotation shaft 18b rotates in the direction of arrow A by the ratchet mechanism (not shown), the first gear 20 rotates with the rotation of the rotation shaft 18b, but the rotation shaft 18b rotates in the direction of arrow B. When this is done, the idle rotation, that is, the rotational force of the rotary shaft 18b is not transmitted to the first gear 20.

  Reference numeral 1 denotes an air filter cleaning mechanism for cleaning the air filter 16, which can be detachably attached to the main body 2 a from the opening 2 b provided on the upper surface of the main body 2 a of the projector device 2. The dust removing body 26 for removing the dust, the dust storage case 25 having the dust storage portion 25a for storing the dust removed by the dust removal body 26, and the cleaning mechanism main body 1a for storing the dust removal body 26 are included.

  The dust removing body 26 includes a dust removing brush 23 that is arranged in parallel with the driven reel 18 and is rotatable and removes dust attached to the air filter 16, and a removal brush 24 that removes dust attached to the dust removing brush 23. .

  The dust removing brush 23 includes a dust removing brush main body 23b having a brush member 23a in sliding contact with the upstream surface of the air filter 16, an axial body 23c rotatably supported by the cleaning mechanism main body 1a, and an end of the shaft body 23c. The second gear 27 is fixed to the first portion and meshes with the first gear 20 of the driven reel 18. The dust removing brush 23 includes a rotation restricting means that restricts the rotation angle of the dust removing brush 23 and an urging means that urges the dust removing brush 23 to rotate in the direction of arrow C, although not particularly illustrated.

  The removal brush 24 is arranged opposite to the dust removal brush 23, and its tip is in contact with the brush member 23a of the dust removal brush 23. When the dust removal brush 23 rotates, dust attached to the brush member 23a is removed. It is supposed to be removed. In the present embodiment, the tip of each of the brush member 23 of the dust removal brush 23 and the removal brush 24 is inclined so as to pierce toward the dust container 25a side.

  The operation and action of the projector apparatus according to the present embodiment configured as described above are as follows.

  First, an output line (not shown) of a personal computer (not shown) that holds image information to be projected is connected to a predetermined connection terminal (not shown) of the projector device 2, and then the main body 2a of the projector device. When a switch (not shown) provided in the switch is turned on, the control body 11, the blower 10, the power supply board body 7, and the image display element body 6 are energized, and are designated from the projection body 3 by the operation of the personal computer. An image is projected.

  During the operation of the projector device 2, the outside air enters the main body 2 a through the intake port 4 → the air filter 16 → the air passage 9 → the external air passage port 15 a of the main body 2 a by the operation of the blower 10, and the image display element body 6. After the heat generating components that generate heat, such as the power supply board body 7 and the control body 11, are cooled, they are exhausted to the outside through the exhaust port 5.

  When the outside air passes through the air filter 16, dust contained in the outside air is collected by the air filter 16, so that the dust does not enter the main body 2a. In this embodiment, the air filter 16 is wound in advance on the drive reel 17 side (initial position).

  In this way, when the main body 2a is used for a long period of time, the portion of the air filter 16 facing the air passage 9 is gradually clogged with dust, and it becomes difficult for outside air to enter from the intake port 4 and the main body 2a. However, in this embodiment, a sensor 8 for detecting the temperature and pressure in the main body 2a is provided so that the air flow becomes worse and the temperature in the main body 2a becomes a predetermined temperature. When the temperature is exceeded or the air becomes difficult to enter the main body 2a and it is detected that the air pressure in the main body 2a has become a predetermined value or less, the cleaning operation of the air filter 16 is started.

  Next, details of the cleaning operation of the air filter 16 will be described with reference to FIGS.

  3 and 4, prior to the start of the cleaning operation, the dust removing brush 23 is stopped at the position shown in FIG. 4A by the urging force of the urging means and the rotation restricting means (hereinafter this position is referred to as “initial stage”). Location "). When the cleaning operation starts, the first drive means 19 is energized, the drive reel 17 rotates in the direction of arrow D, and the driven reel 18 connected via the timing belt 21 is simultaneously moved in the direction of arrow B. The air filter 16 moves to the driven reel 18 side and is wound around the driven reel 18.

  During the movement of the air filter 16, the dust adhered to the surface of the air filter 16 is attached to the brush member 23 a of the dust removing brush 23 whose rotation is restricted at the initial position so as to be rubbed. That is, the dust on the surface of the air filter 16 is removed by the brush member 23a (see FIG. 4A). During this time, the first gear 20 on the driven reel 18 side does not rotate together with the rotating shaft 18b of the driven reel 18 by the ratchet mechanism.

  When at least all of the portion of the air filter 16 facing the air passage 9 has been removed by the dust removing brush 23, the first driving means 19 is reversed as shown in FIG. 17, The driven reel 18 rotates in the directions of arrows E and A, respectively, and the air filter 16 starts to move toward the drive reel 17 side.

  At this time, as shown in FIG. 4B, the first gear 20 rotates in the direction of arrow A along with the rotation of the rotating shaft 18b of the driven reel 18, and the second gear 27 meshed with the first gear 20 moves in the direction of arrow F. The dust attached to the brush member 23a of the dust removal brush 23 is removed by the removal brush 24 and falls into the dust storage case 25. During the movement of the air filter 16 to the drive reel 17 side, the first gear 20 continues to rotate in the direction of the arrow A, but the first gear 20 has a notched portion 20a without teeth. When the notch 20a faces the second gear 27, the first gear 20 and the second gear 27 are disengaged, and the second gear 27 is biased as shown in FIG. By means of the urging force of the means, it instantaneously rotates in the direction of arrow C, and the dust removing brush 23 returns to the initial position.

  Then, as the first gear 20 rotates, when it meshes with the second gear 27 again, the state shown in FIG. 4B is reached, and the dust removing brush 23 rotates again in the direction of arrow F. The dust adhering to the brush member 23a of the brush 23 is removed by the removal brush 24 and falls into the dust storage case 25.

  By repeating this operation until the air filter 16 is completely wound on the drive reel 17 side, all the dust adhering to the brush member 23a of the dust removing brush 23 is removed by the removing brush 24, and the inside of the dust storing case 25 Fall into.

  While the air filter 16 is automatically cleaned several times as described above, when the dust container 25a becomes full of dust, the knob 1b is grasped and the opening 2b provided in the main body 2a. The air filter cleaning mechanism 1 is further extracted, and the dust storage case 25 is further removed from the air filter cleaning mechanism 1 so that the dust stored therein is discarded.

  As described above, according to the present embodiment, the dust removing body 26 is constituted by the dust removing brush 23 and the removing brush 24, and dust attached to the air filter 16 is first removed by the dust removing brush 23 and then attached to the dust removing brush 23. By removing the dust with the removal brush 24, the dust attached to the air filter 16 can be reliably removed regardless of the orientation of the air filter 16 in the projector device 2.

  Further, since the tips of the dust removal brush 23 and the removal brush 24 are inclined so as to pierce the dust storage portion 25a side, dust attached to the dust removal brush 23 and the removal brush 24 is surely brought into the dust storage portion 25a side. Therefore, the dust once removed does not adhere to the air filter 16 again.

  Further, since the dust removal brush 23 is provided outside the air passage 9, that is, outside the ventilation area through which the outside air of the air filter 16 passes, the dust removal brush 23 does not hinder the passage of outside air, and the air filter 16 filtration areas can be used effectively.

  In addition, dust removal of the air filter 16 by the dust removal brush 23 is performed outside the air passage 9 through which the outside air passes. Therefore, dust once collected by the suction air acting on the air filter 16 and the action of the dust removal brush 23 is removed. There is no passage through the eyes of the air filter 16.

  Further, the dust removal of the air filter 16 is reliably performed by the dust removal brush 23 without bothering the user and the air filter 16 is always maintained in a clean state, so that the air pressure loss at the air filter 16 is small. Since the inside of the projector device 2 can be efficiently cooled, the projector device 2 having excellent reliability can be provided.

  When the air filter 16 becomes clogged, the temperature of the passing air between the intake port 4 and the exhaust port 5 increases or the pressure decreases. Further, when the projector device 2 is used for a long time, the amount of dust on the air filter 16 increases. Therefore, the degree of contamination of the air filter 16 is estimated from the temperature and pressure detected by the sensor 8 provided in the air passage 9 communicating with the intake port 4 and the exhaust port 5, or the accumulated operation time of the projector device 2, Accordingly, if the first driving means 19 is driven to move the air filter 16 by a predetermined distance to remove dust adhering to the air filter 16, the user periodically removes the air filter 16. There is no need to remove the air filter cleaning mechanism 1 each time for checking the condition of dirt or for checking.

  If a handle (not shown) is provided on the upper surface of the dust storage case 25 so that only the dust storage case 25 can be pulled out from the main body 2a instead of pulling out the air filter cleaning mechanism 1 from the main body 2a, the dust can be discarded. Needless to say, this improves the workability. Needless to say, if the dust removing body 26 is detachably provided on the main body 2a of the projector device 2, the dust removing body 26 can be easily cleaned and maintained.

  In the above embodiment, the belt-like air filter 16 is moved left and right to remove dust adhering to the air filter 16 by the dust removing body 26. However, the air filter 16 is formed in a disk shape, and the air The filter 16 may be rotated to remove dust with the dust removing body 26. Furthermore, as described above, instead of moving or rotating the air filter 16, the air filter 16 may be fixed, and dust may be removed while moving or rotating the dust removing body 26.

  (Example 2)

  FIG. 5 is an external perspective view of the projector apparatus according to the second embodiment of the present invention, FIG. 6 is a cross-sectional view around the mounting portion of the air filter cleaning mechanism of the projector apparatus, and FIG. It is a perspective view. The same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the first embodiment, the air filter is provided on the main body 2a side of the projector device 2, whereas in the present embodiment, the air filter is disposed in an air filter cleaning mechanism that is detachable from the main body. is there.

  5-7, on the upper surface of the main body 2a of the projector apparatus 2 in this embodiment, an elongated opening 2c for detachably inserting and removing the air filter cleaning mechanism 30 is provided, and the opening 2c is opened and closed. Covered with a free lid 31. The lid 31 is provided with a knob 31a to facilitate opening and closing of the lid 31.

Next, the configuration of the filter cleaning mechanism 30 in the present embodiment will be described in detail.
A first reel storage portion 32 is provided on one side of the air filter cleaning mechanism 30, and a second reel storage portion 33 is provided on the other side, and ventilation is provided between the first reel storage portion 32 and the second reel storage portion 33. A passage portion 34 is formed.

  A first opening 35 is provided on the front surface of the air filter cleaning mechanism 30 and a second opening 36 is provided on the rear surface thereof. When the air filter cleaning mechanism 30 is attached to the main body 2a, the first opening 35 and The air inlet 4 of the main body 2 a is in airtight contact with the air inlet 4, the first opening 35, the ventilation passage 34, the second opening 36, and the air passage 9.

  The first reel storage unit 32 stores a drive reel 17 and first drive means 19 for rotationally driving the drive reel 17, and the second reel storage unit 33 has a driven reel 18, a dust removing brush 23, The dust removing body 24 is accommodated, and the second reel accommodating portion 33 is detachably provided with a dust accommodating case 25 having a dust accommodating portion 25a. Further, slits 34 a for allowing the air filter 16 to pass are formed on the inner walls of the first reel storage portion 32 and the second reel storage portion 33 facing the ventilation passage portion 34, respectively. It is stretched between the drive reel 17 and the driven reel 18 so as to cross. A timing belt 21 is stretched between a pulley 17 c provided on the drive reel 17 and a pulley 17 c provided on the driven reel 18.

  During the operation of the projector device 2, the outside air is generated by the operation of the blower 10 from the intake port 4 of the main body 2 a → the first opening 35 → the air air filter 16 → the ventilation passage 34 → the second opening 36 → the air passage 9 → outside air. After passing through the passage port 15a and entering the main body 2a and cooling the heat generating components that generate heat, such as the image display element body 6, the power supply substrate body 7, and the control body 11, the air is exhausted to the outside through the exhaust port 5, Dust contained in the inflowing outside air is collected at a portion facing the ventilation passage portion 34 of the air air filter 16.

  The arrangement relationship, operation, and the like of the above components such as the drive reel 17, the first drive means 19, the driven reel 18, the dust removal brush 23, the removal brush 24, and the dust storage case 25 are basically the above first. Since this is the same as that described in the embodiment, the description including the operation at the time of cleaning the air filter 16 is omitted.

  When the dust accumulated in the dust storage case 25 is discarded, the knob 31a is grasped to open the lid 31, the air filter cleaning mechanism 30 is taken out from the main body 2a, and the dust storage case 25 is removed.

  As described above, according to this embodiment, since the air filter cleaning mechanism 30 is detachable from the main body 2a of the projector device 2, the air filter cleaning mechanism 30 and the projector device 2 can be easily assembled and the air filter cleaning can be performed. By simply removing the mechanism 30 from the main body 2a of the projector device 2, maintenance such as inspection and repair of the air filter cleaning mechanism 30 and the periphery of the air filter 16 becomes very easy. Further, when the air filter cleaning mechanism 30 is attached to the main body 2a, the air passage 34 communicates with the air inlet 4 in an airtight manner, so that outside air is sucked from a portion other than the air inlet 4 and does not pass through the air filter 16. The projector apparatus 2 does not enter the projector apparatus 2 directly. Furthermore, since the air filter cleaning mechanism 30 is detachable, the dust in the dust storage part 25a can be easily discarded.

  If a handle (not shown) is provided on the upper surface of the dust storage case 25 so that only the dust storage case 25 can be pulled out from the main body 2a instead of pulling out the air filter cleaning mechanism 30 from the main body 2a, the dust can be discarded. Needless to say, this improves the workability.

  As described above, the projector device according to the present invention efficiently removes the dust from the air filter regardless of the orientation of the air filter while effectively using the filtration area of the air filter, and the exhaust frequency of the dust is high. It is few and easy to maintain, and can be applied to various electronic and electrical devices that take in outside air and cool the internal heat generating components.

1 is an external perspective view of a projector device according to a first embodiment of the invention. Sectional view around the mounting part of the air filter cleaning mechanism of the projector device A perspective view showing the relationship between the air filter cleaning mechanism and the air filter. (A)-(c) The figure explaining the cleaning operation | movement by the air filter cleaning mechanism. External appearance perspective view of the projector apparatus in 2nd Example of this invention. Sectional view around the mounting part of the air filter cleaning mechanism of the projector device Perspective view of the air filter cleaning mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 30 Air filter cleaning mechanism 2 Projector apparatus 2a Main body 4 Intake port 5 Exhaust port 9 Air passage 10 Blower 16 Air filter 19 1st drive means (drive means)
23 Dust removal brush (filter support)
24 Removal brush 25a Dust storage part 26 Dust removal body

Claims (5)

An air passage that communicates between the air inlet and the air outlet, a blower that sucks outside air from the air inlet into the main body and cools the inside, and then exhausts the air from the air outlet, and is disposed across the air passage. An air filter that collects dust or the like contained in the outside air taken in from the air inlet, an image display element body including a light source lamp, and the like, and a lens provided so that an image from the image display element body can be enlarged and projected , A control body comprising the image display element body and electronic parts for controlling the projection body, a dust removing body for removing dust adhering to the air filter, and dust removed from the air filter And a drive unit that rotates or moves the dust remover and / or the air filter, and the dust remover is disposed outside the air passage. A dust removal brush that contacts the upstream surface of the air filter and removes dust attached to the air filter, and a removal brush that removes dust attached to the dust removal brush, and the dust removal brush and / or the removal brush A projector device characterized in that a tip is inclined so as to pierce the dust storage unit side. The projector device according to claim 1, wherein a dust storage case having a dust remover and / or a dust storage portion is detachably provided on the projector device main body. An air passage communicating the air inlet and the air outlet, a blower for sucking outside air from the air inlet into the main body and cooling the inside and then exhausting the air from the air outlet, an image display element body including a light source lamp, and the like, A projection body composed of a lens or the like provided so that an image from the image display element body can be enlarged and projected; a control body composed of the image display element body and an electronic component for controlling the projection body; an air filter cleaning mechanism; The air filter cleaning mechanism includes: a ventilation passage portion disposed in the middle of the air passage in the vicinity of the intake port; and the outside air disposed across the ventilation passage portion and introduced from the intake port. An air filter for collecting dust contained in the air filter, a dust removing body for removing dust adhering to the air filter, and a dust container for storing the dust removed from the air filter And a driving means for rotating or moving the dust remover and / or the air filter, and the dust remover is disposed outside the ventilation passage and is in contact with the upstream surface of the air filter and the air filter. A dust removing brush for removing dust adhering to the filter and a removing brush for removing dust adhering to the dust removing brush, and the tip of the dust removing brush and / or the removing brush is pierced with respect to the dust storage unit side A projector device characterized by being inclined as described above. The projector device according to claim 3, wherein the air filter cleaning mechanism is detachably provided on the projector device body. 5. The air filter according to claim 1, wherein the air filter is rotated by a predetermined angle or moved by a predetermined distance in accordance with a temperature or pressure of air passing between the intake port and the exhaust port or an accumulated operation time of the projector device. The projector device according to item.

Images