JP4260817B2 - Blower - Google Patents

Description

  The present invention relates to a blower that has a circulation function for circulating indoor air in a ventilator that ventilates indoor air by supplying and exhausting air.

  A wide variety of air blowers for exchanging indoor air by supplying and exhausting and ventilating have been developed. Some of them are equipped with heat exchangers and perform ventilation by supply and exhaust while exchanging heat between the supply and exhaust flows. In addition to the ventilation system, an air blower incorporating an air purifying unit for purifying indoor air by circulating indoor air has been developed. In such a blower, many of them have been conventionally controlled by a motor operation control circuit as shown in FIGS.

  That is, the exhaust blower motor 50 having a speed adjusting notch and the air supply blower motor 51 not having a speed adjusting notch include first and second control switches 52 and 53 and a relay 54. Further, the control unit 55 controls the operation of the motor 50 belonging to the exhaust and the motor 51 belonging to the supply air by two different control methods. The first control switch 52 starts and stops the two motors 50, 51, and the second control switch 53 switches the notch of the motor 50 belonging to exhaust, and is connected via a relay contact 56. It is connected to a motor 50 belonging to the exhaust. When the first control switch 52 is operated, a voltage is applied to the two motors 50 and 51, and the exhaust fan and the supply fan start operation simultaneously. Here, when the second control switch 53 is operated, a voltage is applied to the relay coil 57 of the relay 54 and the relay contact 56 is switched to switch the notch of the motor 50 of the exhaust fan. Further, when the first control switch 52 is opened, both the exhaust fan and the supply fan stop. In the motor operation control circuit of FIG. 7, the control unit 55 and the motors 50 and 51 are connected by caulking with an insulating coating open / close terminal 58, and in the case shown in FIG.

  In addition, the motor shown in FIG. 9 is provided with a motor 62 for operating a damper plate by providing notches for speed adjustment in the motors 50 and 51 of the exhaust fan and the supply fan. In the control, the first control switch 52 is simultaneously started and stopped, the second control switch 53 is simultaneously switched to weak / strong, and the third control switch 61 is used to start and stop the motor 62. By providing a changeover switch 60 on this, the notches of the motors 50 and 51 can be individually changed. When the second control switch 53 is switched to strong, the strength can be switched to strong by the switch 60 (see Patent Document 1).

Japanese Utility Model Publication No. 61-192234

The motor operation control circuit described above is also applied to a ventilator incorporating an air purification unit. For example, it is possible to control the operation of a motor belonging to ventilation using a variable speed control method and the motor for circulation belonging to air purification using an on / off control method.
Controlling multiple motors individually is not so difficult by electronic control technology using a microcomputer, and each motor has a start / stop control switch and a speed switch control switch. However, the former has a problem that causes a significant increase in cost, and the latter has a problem that the number of control switches increases. The switch box of JIS C8336, which is often used normally, can incorporate only three standard tumbler switches in a row. For example, two start / stop control switches and individual speed switching control switches are provided for two motors. In this case, four tumbler switches are required and two rows are required, which is disadvantageous in terms of design and space saving of the switch occupation area. Further, in Japanese Utility Model Publication No. 61-192234, the notch of the motor can be changed while the air supply fan and the exhaust air fan are independent from each other, but the control method by the control switch is used. The air blower and the exhaust air blower cannot be interchanged (see FIG. 10).

  The present invention has been made to solve the above-described conventional problems, and the problem is that a plurality of motors are grouped and the operation of the group is controlled by different control methods. The object is to obtain a blower equipped with a low-cost motor operation control circuit that can easily change the control method.

  In order to achieve the above-mentioned object, the invention of claim 1 is characterized in that two or more motors of a blower that ventilates indoor air by supplying and exhausting air and a fan that circulates indoor air, a plurality of control switches, and a switching means. For the air blower equipped with a motor operation control circuit that operates each motor with two different control methods for the motor belonging to one and the motor belonging to the other by the control unit equipped with the circuit configuration of each motor with the same number of notches In this case, a means is employed that enables two kinds of control outputs from the control unit by the control switch to be exchanged for each motor.

  According to the present invention, a blower that ventilates indoor air by supplying and exhausting air, and two or more motors of a blower that circulates indoor air are provided by a plurality of control switches and a control unit including switching means. For motors that have a motor operation control circuit that operates each motor with two different control methods for the motor that belongs to the other and the motor that belongs to the other, group multiple motors and control the operation with different control methods Therefore, it is possible to obtain a blower that can easily change the control method for the group and has a small switch area.

  The blower of the present invention exhausts indoor air to the outside of the room, ventilates the outdoor air by supplying heat to the room and exchanging heat between the supply and exhaust air flows, and circulates the indoor air to circulate the room air. It also has a purification function for purifying air. This air blower is composed of a laminated hexahedron heat exchanger, an air supply fan and an exhaust fan, a ventilation fan, a circulation fan, and a deodorant. A purifying unit using a filter is configured adjacently. Two or more motors of a blower that performs a ventilation function and a blower that circulates indoor air are different between a motor belonging to one and a motor belonging to the other by a control unit having a plurality of control switches and switching means. A motor operation control circuit that operates each motor with two control methods is provided. Each motor has a circuit configuration with the same number of notches, and two control outputs from the control unit by the control switch can be exchanged for each motor.

Embodiment 1 FIG.
The present embodiment shown in FIGS. 1 to 4 includes a ventilation function for exhausting indoor air to the outside of the room, ventilating the outdoor air by supplying heat to the room and exchanging heat between the supply and exhaust flows, and indoor air. It is related with the air purification ventilation apparatus as a ventilation apparatus which also has the purification processing function which circulates and purifies indoor air. This air purification ventilator is a ventilation unit comprising a laminated hexahedron heat exchanger 2, an air supply fan 3, and an exhaust fan 4 in a main body box 1 configured as an open rectangular parallelepiped box structure. 5 and a purifying unit 7 including a circulation fan 6 and a deodorizing filter are adjacent to each other (see FIG. 1).

  Both the ventilation part 5 and the purification | cleaning part 7 are separated by the partition. An exhaust passage for passing an exhaust flow, which is a primary air flow, continues through one working fluid passage of the heat exchanger 2 and a second working fluid passage of the heat exchanger 2 in the main body box 1 serving as the ventilation section 5. A supply passage that passes through the supply airflow that is a secondary airflow is configured to be independent over the entire route.

  The heat exchanger 2 is operated so that the ridge corners are directed sideways and front and rear at approximately the center in the main body box 1, and the closed two facets face the rear and front opening parts of the main body box 1, respectively. The fluid passage is incorporated so that it can be inserted and removed in the vertical direction with the fluid passage substantially horizontally. The outlet end and the inlet end of the working fluid passage that communicates with the air supply passage of the heat exchanger 2 are opened on two opposite surfaces, respectively, and the outlet end and the inlet end of the other working fluid passage that communicates with the exhaust passage are Openings are made on the other two opposing surfaces. The four ridge corners, which are the boundary portions of the other four surfaces except for the small openings on the two surfaces of the heat exchanger 2, are constituted by holding frames that hold the heat exchanger 2, and each of the holding frames has angle-shaped filter mounting rails. It is provided so as to be opposed, and is configured so that the filter can be attached and detached by inserting and removing from the small-mouth side of the heat exchanger 2.

  The exhaust passage has an indoor suction port formed on the rear side of the open portion of the front face of the main body box 1 as an inlet end and communicates with the front side portion in the main body box 1 to one working fluid passage of the heat exchanger 2. The exhaust blower 4 is assembled between the indoor suction port and the heat exchanger 2 in a series of ventilation passages having an outdoor air outlet 9 opened on the rear surface of the main body box 1 as an outlet end. The air supply passage has an outdoor suction port 8 formed on the rear surface of the main body box 1 as an inlet end, and passes through the other working fluid passage of the heat exchanger 2 through the rear side of the main body box 1 to the main body box. An air supply blower 3 is assembled between the outdoor suction port 8 and the heat exchanger 2 in a series of ventilation passages having an indoor outlet opened in front of the body 1 as an outlet end. The motor 10 of the exhaust fan 4 and the air supply fan 3 is common, and the motor shafts of both shafts are attached to a partition wall that partitions the air supply passage and the exhaust passage so that the motor shafts of both shafts are substantially horizontal in the front-rear direction (width direction). It has been. Ducts (not shown) are connected to the outdoor suction port 8 and the outdoor air outlet 9, respectively, and communicate with the outdoors (mostly outdoors).

  On the other hand, in the main body box 1 serving as the purifying unit 7, the indoor suction ports that are arranged side by side adjacent to the indoor suction port of the ventilation unit 5 are used as inlet ends, and from one side of the main body box 1. A circulation air passage having an indoor air outlet formed side by side adjacent to the indoor air outlet of the ventilation unit 5 is configured as an outlet end, and a circulation fan 6 is provided at a portion on one side of the main body box 1. It is incorporated. The circulation blower 6 includes a double suction type multi-blade fan, and the motor shaft of the motor 11 is disposed in the lateral direction so as to be substantially perpendicular to the motor shaft of the motor 10 of the ventilation section 5. A deodorizing filter is detachably attached to the indoor suction port side of the opening portion of the main body box 1 of the purification unit 7. The deodorizing filter has a structure in which activated carbon is attached to paper as a base material and a filter medium having a honeycomb structure is held by a holding frame, and mainly adsorbs ammonia, methyl mercaptan, hydrogen sulfide, and the like. In addition, in order to prolong the lifetime, the filter medium is subjected to a copper ionization immersion treatment.

  This air purification ventilator is equipped with an operation control circuit as shown in FIGS. 2 and 3 for controlling the operation of the air supply fan 3, the exhaust fan 4, and the circulation fan 6. The operation control circuit controls the operation of the motor 10 belonging to ventilation and the motor 11 belonging to circulation, and includes first to third three control switches 12, 13, 14 and a relay 15 as switching means. The control unit 16 controls the operation by two different control methods for the motor 10 belonging to ventilation and the motor 11 belonging to circulation. Both the motor 10 belonging to the ventilation and the motor 11 belonging to the circulation have the same number of notches (in this embodiment, two notches of strong / weak), and can be connected to the control unit 16 in the same shape. The connector 17 as a means is configured so that the connection relationship can be exchanged.

  The connector 17 on the side of the motor 10 belonging to ventilation and the connector 17 on the side of the motor 11 belonging to circulation are arranged in close proximity, and the connection relationship can be easily replaced by replacement (see FIGS. 2 and 3). The control unit 16 is mainly composed of a relay 15 having a relay coil 18 and relay contacts 19, 20, 21, and is connected to the first to third control switches 12, 13, 14 via a terminal block 22. ing. The first control switch 12 is a switch for starting and stopping the motor 10 of the air supply fan 3 and the exhaust fan 4 belonging to ventilation, and the second control switch 13 is a switch for switching the notch of the motor 10 belonging to ventilation. The third control switch 14 is a switch for starting and stopping the motor 11 of the circulation fan 6 belonging to the circulation. The first to third control switches 12, 13, and 14 are incorporated in a line in a switch box 23 of JIS / C8336 that is normally used, and are disposed at appropriate positions in the room where they can be easily operated.

  This air purifying ventilator is suspended and fixed in a space such as the back of a ceiling using anchor bolts or the like with the front of the main body box 1 facing the ceiling surface, and the front of the main body box 1 has a form along the ceiling surface. A grill is installed. Thereby, the ventilation function accompanied by heat exchange with respect to the indoor space and the purification function for removing odor can be achieved individually or in parallel.

  When the first control switch 12 is operated, the exhaust blower 4 and the supply blower 3 are operated with a strong notch to form an exhaust flow and a supply air flow, and heat exchange ventilation is performed by the ventilation unit 5. When the second control switch 13 is actuated, a voltage is applied to the relay coil 18, the relay contact is switched from 20 to 21, the exhaust fan 4 and the supply fan 3 are operated with a weak notch, and heat at a low air volume is obtained. Exchange ventilation is performed. When the third control switch 14 is activated, power is supplied to the motor 11 and the purifier 7 operates. The motor 11 is operated with a strong notch, and the circulation fan 6 forms a circulation airflow in the room. Indoor air is sucked from the suction opening of the decorative grille, passes through the deodorizing filter, passes through the blower for circulation 6 from the indoor suction port, passes through the indoor outlet, and is blown out again from the outlet opening of the decorative grille.

  In other words, the motor 10 belonging to ventilation is controlled by two control methods, namely, starting / stopping and strong / weak switching, and the motor 11 belonging to circulation being starting / stopping. When a situation arises where it is desired to control the operation of the ventilation unit 5 by the control method of starting / stopping and the purification unit 7 by the control method of starting / stopping and switching strength, the connector 17 of the motor 10 belonging to ventilation and the motor 11 belonging to circulation If the connectors 17 are replaced with each other, the operation can be easily performed by operating the first to third control switches 12, 13, and 14 which are hand switches. When the connector 17 is replaced, the motor 11 of the circulation fan 6 is started and stopped by the first control switch 12, and the notch is switched by the second control switch 13. For the motor 10 belonging to ventilation, operation control is performed by the third switch 14 in a strong notch fixed start / stop control system (see FIG. 4). At this time, it is easy to use if the function display in the switch box 23 of the first to third control switches 12, 13, 14 can be changed at any time.

  In this embodiment, the control system can be switched between the motor 10 belonging to ventilation and the motor 11 belonging to circulation. However, the supply fan 3 and the exhaust fan 4 are configured by separate motors. Regarding the exhaust ventilation device, it is also possible to change the control method between the motor belonging to the supply air and the motor belonging to the exhaust. In this case, a ventilation operation for increasing the supply air volume from the exhaust air volume and a ventilation operation for decreasing the supply air volume below the exhaust air volume can be easily performed at hand by simply replacing the connector 17. Furthermore, switching of control methods between grouped motor groups or blower groups can be performed in the same manner. In this case, even when the motor group or the fan group grouped from different places are controlled and the place of control is to be exchanged, the control place can be easily exchanged without changing the wiring. The present invention can also be applied to a simultaneous start / stop as in the conventional example shown in FIGS. 7 and 8 and a blower that performs notch switching operation for only one blower.

Embodiment 2. FIG.
In the present embodiment shown in FIG. 5, the switching of the control method related to the operation control circuit of the blower shown in the first embodiment is made possible by switching the switch without depending on the connector 17. The same as in the first embodiment. Therefore, the same reference numerals as those of the first embodiment are used for the same parts as those of the first embodiment, and description thereof will be omitted.

  The operation control circuit of the air purifying and ventilating apparatus according to the present embodiment is connected to the control unit 16 shown in the first embodiment through a circuit connected to the motor 10 belonging to ventilation via the relay contact 20 of the relay 15 and the relay 15. The circuit that communicates with the motor 11 belonging to the circulation without switching to the circuit that communicates with the motor 11 belonging to the circulation via the relay contact 26 of the relay 15 and the circuit that communicates with the motor 10 belonging to the ventilation without passing through the relay 15 3 A path switch 27 is provided. A path leading to the motor 10 belonging to ventilation via the relay contact 19 and a path leading to the motor 11 belonging to circulation without passing through the relay 15 are connected to the contact 29 of the three-way switch 27, and the relay contact 24 is connected to the contact 30. The path that leads to the motor 10 that belongs to ventilation via the relay and the path that leads to the motor 11 that belongs to circulation without passing through the relay 15 are connected. A four-way switch 31 is provided between the first and second control switches 12 and 13 and the motors 10 and 11. Although the contact 32 and the contact 34 of the four-way switch 31 and the contact 33 and the contact 35 are connected, the contact 32 and the contact 35, and the contact 33 and the contact 34 are connected by switching the four-way switch 31.

  When the contact 33 and the contact 35 of the four-way switch 31 are connected, the motor 10 belonging to ventilation can be started and stopped by the first control switch 12, and when the contact 32 and the contact 34 are connected, The three control switches 14 can start and stop the motors 11 belonging to the circulation. If the contact 29 of the three-way switch 27 is connected, the notch of the motor 10 belonging to ventilation can be switched by the second control switch 13. When the three-way switch 27 is switched from the contact point 29 to the contact point 30 and the four-way switch 31 is switched so that the contact point 32 and the contact point 35 are connected and the contact point 33 and the contact point 34 are connected, the first control switch 12 belongs to the circulation. The motor 11 can be started and stopped, and the second control switch 13 can switch the notch of the motor 11 belonging to the circulation. The third control switch 14 can start and stop the motor 10 belonging to ventilation.

  When the three-way switch 27 is switched from the contact point 29 to the contact point 30 and the four-way switch 31 is placed in the connection state between the contact point 32 and the contact point 34 and the contact point 33 and the contact point 35, the first control switch 12 causes the motor 10 belonging to ventilation. The second control switch 13 can switch the notch of the motor 11 belonging to the circulation, and the third control switch 14 can start and stop the motor 11 belonging to the circulation. As described above, the control can be exchanged also in the second embodiment as shown in the first embodiment. Other functions are the same as those of the first embodiment.

Embodiment 3 FIG.
In the present embodiment shown in FIG. 6, the second relay 36 is provided in the control unit 6 of the operation control circuit shown in the second embodiment, and control is performed by the three-way switch 27, the four-way switch 31, and the second relay 36. The system is exchanged, and the basic configuration is the same as that of the second embodiment. Therefore, the same reference numerals as those of the second embodiment are used for the same parts as those of the second embodiment, and description thereof will be omitted.

  The control unit 16 of the present embodiment includes a relay coil 37 of the second relay 36 between the contact 30 of the three-way switch 27 and the contact 35 of the four-way switch 31 of the control unit 16 shown in the second embodiment. The relay contact 38 is connected to the power source, the relay contact 40 is connected to the motor 11 belonging to the circulation via the relay 15, and the relay contact 39 is connected not via the relay 15. If the contact 28 and the contact 29 of the three-way switch 27 are connected, the notch of the motor 10 belonging to ventilation can be switched between the relay contact 20 and the relay contact 21 by the second control switch 13, but it belongs to the circulation. Since the notch of the motor 11 is connected without going through the relay 15, the operation of fixing the notch is performed. When the contact 28 and the contact 30 of the three-way switch 27 are connected, the notch of the motor 10 belonging to ventilation is connected without the relay 15, so that the notch fixing operation is performed, and the relay contact 39 of the second relay 36 is the relay contact. Therefore, the notch of the motor 11 belonging to the circulation can be switched by switching the relay contact 26 to the relay contact 25 by the second control switch 13. Other functions are the same as those of the second embodiment.

It is a front view which shows the structure of the air purification ventilation apparatus of Embodiment 1. FIG. FIG. 3 is a circuit configuration diagram of an operation control circuit of the air purification ventilation apparatus of the first embodiment. It is the circuit block diagram which switched the connector of the operation control circuit of the air purification ventilation apparatus of Embodiment 1. It is explanatory drawing which shows the switching function of the control system by the operation control circuit of the air purification ventilation apparatus of Embodiment 1. FIG. FIG. 6 is a circuit configuration diagram of an operation control circuit of the air purification ventilator according to the second embodiment. FIG. 6 is a circuit configuration diagram of an operation control circuit of an air purification ventilation apparatus according to a third embodiment. It is a circuit block diagram of the conventional operation control circuit. It is a circuit block diagram of the other conventional operation control circuit. It is a circuit block diagram of the other conventional operation control circuit. It is explanatory drawing which shows the notch switching function by the conventional operation control circuit.

Explanation of symbols

  3 Blower for supply, 4 Blower for exhaust, 6 Blower for circulation, 10 Motor, 11 Motor, 12 1st control switch, 13 2nd control switch, 14 3rd control switch, 15 Relay, 16 Control part, 17 connector, 27 3-way switch, 31 4-way switch, 36 second relay.

Claims (2)

Two or more motors of a blower that ventilates indoor air by supplying and exhausting air and a fan that circulates indoor air, a motor that belongs to one by a plurality of control switches and a control unit having a relay as a switching means And a motor operation control circuit for operating each motor by two different control methods for the motor belonging to the other and the motor belonging to the other, wherein each motor has a circuit configuration with the same number of notches and is controlled by the control switch The air blower which made it possible to replace two kinds of control outputs from the section with respect to the motors.   The blower according to claim 1, wherein the two kinds of control outputs can be exchanged by a replaceable connecting means having the same configuration.

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