JP6034044B2 - Ventilation equipment - Google Patents

Description

  The present invention relates to a ventilation device disposed on a wall between an outdoor and an indoor.

  Patent Document 1 discloses a mechanism in which a damper is rotated by a wax thermoelement that operates by sensing temperature, and a ventilation passage is opened and closed by the damper. Further, in FIG. 6 of Patent Document 1, the ventilator is fully opened at 25 ° C., and the half-open state is fully closed as the temperature becomes lower than 25 ° C. and the half-open state as the temperature becomes higher than 25 ° C. It is disclosed to make it fully closed.

Japanese Utility Model Publication No. 2-128036

  However, in the ventilator disclosed in Patent Document 1, when the damper receives the force of the wind that has entered the ventilation passage, the damper generates a force in the direction in which the damper is rotated. In addition, due to this rattling, a gap is generated between the damper and the ventilation passage, and there is a possibility that the sealing performance cannot be secured in the fully closed state.

  This invention makes it a subject to provide the ventilator which can prevent that an opening-and-closing plate rattles with the force of the wind which approached the ventilation path in view of said situation.

  In order to solve the above-described problems, the ventilator of the present invention has a main body portion in which a ventilation passage having an outdoor opening and an indoor opening is formed, a cylindrical space portion formed in the ventilation passage, and the cylindrical shape. An arc shielding plate that has an arc shape along the circumference of the space and moves around the axis provided at the center of the circumference to open and close the ventilation passage, and an operating amount corresponding to the temperature The arc shield plate is moved in a circular arc with the actuator operating at the operating force of the actuator, so that the ventilation passage is fully opened at a predetermined temperature, and the ventilation passage is opened in each range from the predetermined temperature to a low temperature and a high temperature. And an opening / closing drive unit that is in a half-open state to a fully-closed state.

  If it is said structure, the force to the said axis | shaft will arise in the said arc shielding board by the wind which approached in the said ventilation channel, and force will not arise in the direction which rotates the said arc shielding board. For this reason, it is possible to prevent the arc shielding plate from shaking with the wind, and it is possible to ensure a high degree of sealing in the closed state of the arc shielding plate.

  The first set includes a first arc shielding plate, a first actuator, and a first opening / closing drive unit, and the second set includes a second arc shielding plate, a second actuator, and a second opening / closing drive unit. The first arc shield plate is moved in an arc from the low temperature to the predetermined temperature by the first set, and the second arc shield plate is moved from the predetermined temperature to the high temperature by the second set. An arc may be moved. According to this, the burden of the driving force of each of the first and second actuators can be reduced as compared with the case where the single arc shielding plate is moved in an arc. In addition, when the driving is shared between the first group and the second group in this way, there is an advantage that the predetermined temperature range for keeping the ventilation passage open can be set wide.

  The first set of the first actuator and the first opening / closing drive part are provided on one end side of the main body part, and the second set of the second actuator and the second opening / closing drive part are provided on the main body part. It may be provided on the other end side.

  The cylindrical space portion may be formed sideways. In this case, the outdoor opening may be formed at a position that is the same as or lower than the position of the indoor opening.

  If it is this invention, it can prevent that the opening-and-closing plate of a ventilator shakes with a wind, and there exist various effects, such as ensuring a high sealing degree in the closed state of the said opening-and-closing plate.

It is the schematic perspective view which showed the state by which the ventilation apparatus which concerns on one Embodiment of this invention was engage | inserted by the outer wall of a house. It is AA sectional drawing of the ventilation apparatus of FIG. It is BB sectional drawing of the outline of the ventilation apparatus of FIG. FIGS. 2A and 2B are schematic perspective views of the internal structure of the ventilator shown in FIG. FIGS. 2A and 2B are explanatory diagrams showing the configuration and operation of the first unit in the ventilation device of FIG. FIGS. 2A and 2B are explanatory diagrams showing the configuration and operation of the second unit in the ventilation device of FIG. It is explanatory drawing which showed operation | movement of the ventilation apparatus of FIG. It is sectional drawing which showed the ventilation apparatus which concerns on other embodiment of this invention. It is sectional drawing which showed the ventilation apparatus which concerns on other embodiment of this invention. It is the schematic perspective view which showed the state by which the ventilator which concerns on other embodiment of this invention was engage | inserted by the outer wall of a house.

  Next, a ventilator according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the ventilator which concerns on this invention is not limited to what was shown to the following embodiment, In the range which does not change the summary, it can implement suitably.

  As shown in FIG. 1, the ventilator 1 of this embodiment is fitted to the outer wall separately from the window sash frame 2 on the lower side of the window sash frame 2 of a house, for example. The thickness of the ventilation device 1 is, for example, about 150 mm, and is set to be the same as the thickness of the outer wall. The ventilator 1 has a horizontally long rectangular parallelepiped shape with a lateral width of, for example, 1800 mm.

  As shown in FIG. 2, a ventilation passage 1c having an outdoor opening 1a and an indoor opening 1b is formed in the main body 10 of the ventilation device 1, and a cylinder is formed in the middle of the ventilation passage 1c. A space 1d is formed sideways. Specifically, the diameter of the cylindrical space portion 1d is larger than the height dimension of the ventilation passage 1c, and the circumferential length of the cylindrical space portion 1d is 1 on the upper and lower wall surfaces in the middle of the ventilation passage 1c. An arc-shaped recess having an arc length of about / 4 is formed. A first arc shielding plate 11 and a second arc shielding plate 12 having an arc shape along the circumference of the cylindrical space portion 1d are provided in the cylindrical space portion 1d. The arc length of the first and second arc shielding plates 11 and 12 is about ¼ of the circumferential length of the cylindrical space 1d.

  A fan-shaped first support member 11a is fixed to both ends of the first arc shielding plate 11, and the first support member 11a rotates about the center of the cylindrical space 1d as a rotation center. Thus, the first arc shielding plate 11 moves in an arc along the circumference of the cylindrical space 1d. Similarly, a fan-shaped second support member 12a is fixed to both ends of the second arc shielding plate 12, and the second support member 12a has the center of the cylindrical space 1d as the center of rotation. By rotating, the second arc shielding plate 12 moves in an arc along the circumference of the cylindrical space portion 1d.

  As shown in FIG. 3, a shaft portion 11b serving as a rotation center of the first support member 11a is provided on the central axis of the cylindrical space portion 1d. The shaft portion 11b is formed of the second arc. It is inserted into a bearing portion 12 c provided at the rotation center of the shielding plate 12. Further, a shaft portion 12b is provided at the rotation center of the second support member 12a, and this shaft portion 12b is inserted into a bearing portion 11c provided at the rotation center of the first arc shielding plate 11. Yes. In other words, the first arc shielding plate 11 and the second arc shielding plate 12 rotate with the center of the circumference of the cylindrical space portion 1d as a common rotation axis. A pinion 31 (first opening / closing drive unit) in the first unit 3 is fixed to the end of the shaft portion 11b. A pinion 41 (second opening / closing drive unit) in the second unit 4 is fixed to the end of the shaft portion 12b. The first unit 3 is provided on one end side of the main body 10, and the second unit 4 is provided on the other end side of the main body 10.

  As shown in FIGS. 4A and 4B, a rack 32 (first opening / closing drive unit) meshes with the pinion 31, and the rack 32 moves to move the first. The support member 11a and the first arc shielding plate 11 rotate about the shaft portion 11b. A rack 42 (second opening / closing drive unit) is engaged with the pinion 41, and the rack 42 moves to move the second support member 12a and the second arc shielding plate 12 to the shaft portion 12b. Rotate around the center.

  FIG. 5A and FIG. 5B show the configuration and operation of the first unit 3. The first unit 3 includes a temperature expansion / contraction spring 33 (first actuator) made of a shape memory alloy and a bias spring 34. The upper end of the temperature expansion / contraction spring 33 is fixed at a fixed position, and the lower end is fixed to the lower side piece 35 a of the slide member 35. The lower end of the bias spring 34 is fixed at a fixed position, and the upper end is fixed to the upper side piece 35 b of the slide member 35. The slide member 35 is guided by a guide (not shown) and moves in the vertical direction. The vertical movement causes the link 36 to rotate, and the link 36 moves the rack 32 up and down. In addition, the grill which covers the outdoor opening 1a is provided in the outdoor side of the ventilation apparatus 1, The outdoor air which enters from the opening opened to this grille flows into the circumference | surroundings of the said temperature expansion-contraction spring 33, The above-mentioned The temperature expansion spring 33 senses the outside air temperature.

  For example, when the temperature exceeds 22 ° C., the temperature expansion / contraction spring 33 starts to contract against the spring force of the bias spring 34, and moves the slide member 35 with a contraction amount corresponding to the temperature. The temperature expansion and contraction spring 33 is designed to contract most when the temperature reaches 25 ° C. or higher, for example. The first arc shield plate 11 is open to the outside until the temperature exceeds 22 ° C. and reaches 25 ° C. From the state of closing the 1a side, it is turned by 90 ° to reach the arc-shaped recess on the upper wall surface of the ventilation passage 1c. A stopper for limiting the movement range of the first arc shielding plate 11 to 90 ° may be provided in the cylindrical space 1d, or the movement range of the slide member 35 and the like may be limited. Thus, the rotation range of the first arc shielding plate 11 can be limited to 90 °.

  FIG. 6A and FIG. 6B show the configuration and operation of the second unit 4. The second unit 4 includes a temperature expansion / contraction spring 43 (second actuator) made of a shape memory alloy and a bias spring 44. The lower end portion of the temperature expansion / contraction spring 43 is fixed at a fixed position, and the upper end portion is fixed to the upper side piece 45 a of the slide member 45. The upper end of the bias spring 44 is fixed at a fixed position, and the lower end is fixed to the lower side piece 45 b of the slide member 45. The slide member 45 is guided by a guide (not shown) to move in the vertical direction, the link 46 is rotated by the vertical movement, and the rack 42 is moved up and down by the link 46. The temperature expansion spring 43 also senses the outside temperature.

  For example, when the temperature exceeds 25 ° C., the temperature expansion / contraction spring 43 starts to contract and opposes the spring force of the bias spring 44, and moves the slide member 45 with a contraction amount corresponding to the temperature. The temperature expansion spring 43 is designed to contract most when the temperature reaches 28 ° C. or higher, for example, and the second arc shielding plate 12 is lowered until the temperature exceeds 25 ° C. and reaches 28 ° C. It turns 90 degrees from the state where it was located in the circular-arc-shaped recessed part of the wall surface, and reaches the position which blocks the indoor opening 1b side of the ventilation passage 1c. A stopper for limiting the movement range of the second arc shielding plate 12 to 90 ° may be provided in the cylindrical space portion 1d, or the movement range of the slide member 45 and the like may be limited. Thus, the rotation range of the second arc shielding plate 12 can be limited to 90 °.

  FIG. 7 is an explanatory diagram showing the operation of the ventilator 1 due to fluctuations in outside air temperature. In this example, the ventilator 1 maintains the fully closed state when the outside air temperature is 22 ° C. (low temperature) or lower. When the outside air temperature exceeds 22 ° C. (low temperature), only the first arc shielding plate 11 starts to rotate and is in a half-open state, and when the outside air temperature reaches 25 ° C. (predetermined temperature), it is in a fully open state. Then, when the outside air temperature exceeds 25 ° C. (predetermined temperature), only the second arc shielding plate 12 starts to rotate and is in a half-open state, and when the outside air temperature reaches 28 ° C. (high temperature), it is in a fully closed state. It becomes. When the outside air temperature is 28 ° C. (high temperature) or higher, the ventilator 1 is maintained in a fully closed state.

  If it is said ventilation apparatus 1, the force which acts on said axial parts 11b and 12b will arise in the said arc shielding plates 11 and 12 with the wind which approached in the said ventilation channel | path 1c, and the said arc shielding plates 11 and 12 will be rotated. There will be no force in the direction of movement. For this reason, the arc shielding plates 11 and 12 can be prevented from rattling with the wind, and a high degree of sealing can be secured in the closed state of the arc shielding plates 11 and 12.

  In this embodiment, the thickness of the ventilator 1 is the same as the thickness of the outer wall of the house where the ventilator 1 is installed, and the cylindrical space 1d is enlarged to ensure a large ventilation capacity. Is possible.

  Further, since the first unit 3 and the second unit 4 are provided and the first arc shielding plate 11 and the second arc shielding plate 12 are individually driven, the single arc shielding plate is moved in an arc. In comparison, the burden of the driving force of each of the temperature expansion and contraction springs 33 and 43 can be reduced. In addition, when the first unit 3 and the second unit 4 share the driving in this way, the predetermined temperature range in which the cylindrical space 1d is fully opened is set to a wide range, for example, 24 ° C to 26 ° C. Advantages such as being able to be obtained.

  It does not exclude a structure for moving a single arc shielding plate. For example, as in the ventilator 1A shown in FIG. 8, the temperature of a single arc shielding plate 13 having a length of about ¼ of the circumferential length of the cylindrical space 1d is changed within a range of about 180 °. It is good also as a structure which carries out circular arc movement based on.

  FIG. 9 is a cross-sectional view showing a ventilation device 1B according to another embodiment. The ventilation passage 1c of the ventilation device 1B is formed in a step shape, and the outdoor opening 1a is formed at a position lower than the indoor opening 1b. For this reason, it is difficult for rainwater or the like to enter the indoor side. Furthermore, in this ventilator 1B, the circular arc-shaped recessed part of the upper and lower wall surface in the ventilation path 1c which existed in the ventilators 1 and 1A is eliminated. For this reason, it is difficult for dust to collect in the cylindrical space 1d.

  FIG. 10 is a cross-sectional view showing a ventilator 1C according to another embodiment. This ventilator 1C is configured for vertical installation, and a rainwater intrusion prevention plate 14 for preventing rainwater from entering is provided in the outdoor opening 1a.

  In addition, you may provide a rain water approach prevention board and a cover also in said ventilator 1,1A, 1B. Moreover, you may provide an insect repellent net, a pollen removal filter, etc. in these ventilation apparatuses.

  Further, in each of the units 3 and 4, a plurality of sets of the temperature expansion / contraction springs 33 and 43, the bias springs 34 and 44, and the slide members 35 and 45 may be provided to improve the opening / closing driving force.

DESCRIPTION OF SYMBOLS 1, 1A, 1B, 1C Ventilation apparatus 1a Outdoor opening 1b Indoor opening 1c Ventilation passage 1d Cylindrical space part 10 Main part 11 First arc shielding board 11a First support member 11b Shaft part (shaft)
12 Second arc shielding plate 12a Second support member 12b Shaft (shaft)
13 Single arc shield 3 First unit (first set)
31 pinion (first opening / closing drive)
32 racks (first opening / closing drive)
33 Temperature expansion and contraction spring (first actuator)
34 Bias spring 4 Second unit (second set)
41 pinion (second opening / closing drive)
42 rack (second opening / closing drive)
43 Temperature expansion and contraction spring (second actuator)
44 Bias spring

Claims (5)

A main body having a ventilation passage having an outdoor opening and an indoor opening, a cylindrical space formed in the ventilation passage, and a circular arc shape along the circumference of the cylindrical space. A circular arc shielding plate that opens and closes the ventilation passage by moving in an arc around the axis provided in the center of the ventilation passage, and an actuator that operates with an operating amount according to temperature. Opening and closing drive that causes the ventilation passage to be fully opened at a predetermined temperature and moves the ventilation passage from a half-open state to a fully-closed state in each of a range from the predetermined temperature to a low temperature and a high temperature by moving the arc shielding plate in an arc with an operating force comprises a part, the,
The first set includes a first arc shielding plate, a first actuator, and a first opening / closing drive unit, and the second set includes a second arc shielding plate, a second actuator, and a second opening / closing drive unit. The first arc shield plate is moved by the first set in a range from the low temperature to the predetermined temperature, and the second arc shield plate is set in the range from the predetermined temperature to the high temperature by the second set. To move the arc,
In the fully closed state of the ventilation passage at the low temperature, the first arc shielding plate is positioned so as to be fully closed with respect to the ventilation passage, while the second arc shielding plate is fully opened with respect to the ventilation passage. In the fully closed state of the ventilation passage at the time of the high temperature, the first arc shielding plate is located so as to be fully opened with respect to the ventilation passage, while the second arc shielding plate is located in the ventilation passage. Ventilator characterized by being positioned so as to be fully closed .   2. The ventilation device according to claim 1, wherein the first actuator of the first set and the first opening / closing drive unit are provided on one end side of the main body, and the second actuator of the second set. And the second opening / closing drive part is provided on the other end side of the main body part.   The ventilator according to claim 1 or 2, wherein the cylindrical space is formed sideways.   The ventilator according to claim 3, wherein the outdoor opening is formed at a position equal to or lower than a position of the indoor opening. The ventilator according to claim 1 or 2, wherein the cylindrical space is configured for vertical installation .

Images