JPH04136450U - Drive mechanism for two parallel blades in air conditioners - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce weight and significantly reduce costs by sequentially driving two blades individually and differentially with one motor. [Configuration] The rod 16 is connected to the second spring 28 by the drive motor 15.
When rotated in the opposite direction to the biasing direction, the first blade 11 is locked by the locking member with the projection of the first drive shaft 18 engaged with the projection 16b of the rod 16 due to the biasing force of the first spring 21. Rotate to the fully open position. When the drive motor 15 is further rotated from that position, the protrusion 16b is moved to the first drive shaft 18.
At the same time, the protrusion 16a engages with the protrusion of the first crank member 19, and the rotational force of the drive motor 15 is transferred to the second crank member 19.
The first crank member 19 overcomes the biasing force of the spring 28,
Rotating and moving the connecting rod 25 and the second crank member 26,
This causes the second blade 12 to rotate to the fully open position. The operation is reversed from the fully open position to the fully closed position.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a drive mechanism for two parallel blades in an air conditioner.

0002

[Conventional technology]

Horizontal blades installed at the outlet of an indoor air conditioner to adjust the wind direction in the vertical direction In recent years, the blades for adjusting the wind direction installed at the outlet of ceiling-mounted air conditioners have been Improved wind direction adjustment performance, improved design when fully closed, or improved air outlet. In order to increase the wind speed by narrowing the blade, these blades are often made into two pieces. Conventionally, the mechanism for driving these two blades is one motor that drives the two blades. Fully simultaneous operation where the roots operate at the same time, or one blade can be operated up to a certain angle. One of the methods of partial simultaneous differential operation, in which two discs are operated at the same time from a certain angle. was taken.

0003

[Problem that the idea aims to solve]

By the way, in the case of such fully simultaneous differential or partially simultaneous differential, the two blades Because they move at the same time, it may be difficult to adjust the airflow direction or adjust the air outlet aperture. There were some drawbacks. In order to improve the wind direction adjustment performance and the aperture adjustment function of the air outlet, the two blades should be placed in order. Next, it would be possible to use individual differentials, but this would require two motors, which would increase weight and cost. There was a problem that it could cause a drop. Therefore, the purpose of this invention is to differentially drive two blades sequentially using one motor. The purpose of the present invention is to provide a drive mechanism for two parallel blades in an air conditioner that can .

0004

[Means to solve the problem]

In order to achieve the above object, this invention provides a frame that forms the air outlet 5 of an air conditioner. It is rotatably supported by the material 17, and its rotation axis is on one side of the air outlet 5. Two parallel blades, the first blade 11 and the second blade 12, are rotated around their rotation axis. to adjust the direction of the wind blown out from the outlet 5 in the direction perpendicular to the axis. A drive mechanism for two parallel blades in an air conditioner, and a drive motor that can rotate in forward and reverse directions. The first crank member 19 is fitted into the rod 16, one end of which is fitted into the rod 15. The other end of the rod 16 is rotatably supported by one end 18 of the first blade 11, and the rod 1 6, two protrusions 16a, 16b which protrude in the radial direction and are perpendicular to each other are spaced in the axial direction. one protrusion 16 of the rod 16 is provided at a distance from the first crank member 19; Protrusions 19a and 19b that engage with the first blade 11 are provided at one end 18 of the first blade 11. Protrusions 18a and 18b that engage with the other protrusion 16b of the rod 16 are provided, and the rod 16 and one end 18 of the first blade 11 in opposite circumferential directions. It is connected by a twisted coil spring 21 and connected to the first crank member 19 via a connecting rod 25. A second crank member 26 is connected to the second blade 12. the second crank member 26 and the frame member 17 with the second screw. The second torsion coil spring 28 connects the second torsion coil spring 28 with the The direction in which the connecting rod 25 moves the crank member 26 toward the first crank member 19 side. The connecting rod 25 is biased toward the first crank member 19 from a predetermined position. A first locking member that locks the movement of the connecting rod 25 is engaged with the first locking member. From the stopped state, move the rod 16 in the biasing direction of the second torsion coil spring 28. A second locking member 29 locks the first blade 11 at a position rotated 90 degrees in the opposite direction. A drive mechanism for two parallel blades in an air conditioner, characterized in that it is provided with:

[0005]

[Effect]

In the above configuration, when the connecting rod 25 is locked with the first locking member, the drive motor The rod 16 is rotated by the motor 15 in the direction opposite to the biasing direction of the second torsion coil spring 28. When the projection 18 of the first blade 11 is pushed by the biasing force of the first torsion coil spring 21 a, 18b is engaged with the other protrusion 16b of the rod 16, the first blade 11 is 2. Rotate to the position where it is locked by the locking member 29. Then drive further from that position When the motor 15 is rotated in the opposite direction, the other protrusion 16b of the rod is rotated in the opposite direction. While detaching from the protrusions 18a, 18b of the first blade 11, one of the rods 16 The protrusion 16a engages with the protrusions 19a and 19b of the first crank member 19, and the drive motor The rotational force of the motor 15 overcomes the biasing force of the second coil spring 28, and the first crank member 19, rotate and move the connecting rod 25 and the second crank member 26, thereby Root 12 rotates. After rotating the second blade 12 to a predetermined position, the drive motor 1 5 in the biasing direction of the second torsion coil spring 28, the second torsion coil spring 28 is rotated. until the connecting rod 25 comes to a position where it is locked by the first locking member due to the urging force of the screw 28. The second blade 12 rotates in the opposite direction to the above. In this locking position, the rod 16 and other The other protrusion is in contact with the protrusion of the first blade 11. Drive motor from that position 15 is further rotated, the other protrusion 16b of the rod 16 aligns with the protrusion of the first blade 11. 18a, 18b to rotate the first blade 11, so that the first blade 11 One protrusion 16a of the rod 16 is connected to the protrusions 19a and 19b of the first crank member 19. Rotate to the locked position and return to the original state. In this way, two blades can be driven individually in sequence with one motor, so Weight reduction and significant cost reduction can be achieved.

[0006]

【Example】

This invention will be explained in detail below with reference to illustrated embodiments. FIG. 1 is a schematic cross-sectional view of a ceiling-mounted air conditioner using the drive mechanism of this embodiment. . In this figure, 1 is a cabinet, 2 is a fan, 3 is an evaporator, and 4 is a suction grill. 5 is an air outlet. The drive mechanism of this embodiment is a main infrastructure provided at the air outlet 5. The two flaps, the flap 11 and the sub-flap 12, are individually differentially moved in sequence as described later. Adjust the horizontal direction of the air blown out from the air outlet 5 toward the paper surface. It is something. FIG. 2 is a parts diagram of the drive mechanism, and FIG. 3 is an assembled diagram thereof. This drive mechanism includes a driving stepping motor (hereinafter simply referred to as a motor) 15. It has a rod 16 fitted to the output shaft 15a, and this rod 16 is connected to the partition plate 17. It is rotatably supported by a first drive shaft 18 which is rotatably supported. child The rod 16 has two protrusions 16a, 1 provided at an angle of 90 degrees to each other. 6b, and this rod 16 has a protrusion 19 that engages with the protrusion 16a. a, 19b, and an engagement groove 2 that engages with the protrusion 16b. A rotary plate 20 having 0a and 20b is fitted. The first drive shaft 18 and rotation The roller plate 20 is connected to a first torsion coil spring (hereinafter referred to as the first spring) 21. and are stretched together via the rod 16 by the first spring 21. It is in. That is, the rotary plate 20 engages the rod 16 with its engagement grooves 20a, 20b. The first drive shaft 18 is attached to the projection 16b by the first spring 21. so that the protrusions 18a, 18b are locked with the protrusion 16b of the rod 16. It has become. Therefore, the first spring 21 biases the rod 16 against the first drive shaft 18. When the rotating plate 20 is rotated in the same direction, the rotating plate 20 rotates in the same direction, and the first drive The shaft 18 is rotated in the same direction by the spring force of the first spring 21. On the other hand, the rod 16 When rotated in the opposite direction to the biasing direction, the rotating plate 20 rotates in that direction. At the same time, the first drive shaft 18 is pushed by the rod 16 and rotates. The first drive shaft 18 When the main flap 11 is rotated, the main flap 11 fitted to the first drive shaft 18 is rotated. On the other hand, a second crank 26 is connected to the first crank 19 via a connecting rod 25. It is. This second crank 26 is a second drive rotatably supported by the partition plate 17. A second shaft is fitted onto the shaft 27 and has one end fixed to the protrusion 17a of the partition plate 17. The second drive shaft 27 is rotated by a two-torsion coil spring (hereinafter referred to as a second spring) 28. The sub-flap 12 fitted in the sub-flap 12 is biased in a direction to close it.

[0007] The operation of the drive mechanism having the above configuration will be explained based on FIG. 4. This figure 4 smell In (1-a) and (1-b), both the may flap 11 and the sub-flap 12 are in the fully closed state. In case (2-a) and (2-b), the may flap 11 is fully open and the sub-flap 12 is fully closed. (3-a) and (3-b) when both the may flap 11 and sub-flap 12 are fully open. Indicates when the state is. When the main flap 11 and the sub-flap 12 are both in the fully closed state, the first The drive shaft 18 and the rotary plate 20 are moved toward each other by the spring force of the first spring 21 as indicated by arrows A and B. The protrusions 18a, 18b of the first drive shaft 18 are in a tensioned state in the direction of the rod 1. It is in a state where it is locked to the protrusion 16b of No. 6. Further, the second crank 26 is connected to the second spring 2 It receives a rotational force in the direction of the dashed arrow C due to the spring force of 8, which causes the The connecting rod 25 receives a force in the direction of the broken line D, and the first crank 19 also breaks through the connecting rod 25. The first crank 19 is subjected to a rotational force in the direction of the arrow E of the line, but the first crank 19 is From the position shown in Figure (1-b) to the direction of arrow E using the first stopper (not shown) as a material. Since they are locked so that they do not rotate, the interlocking rod 25 and second crank 26 also cannot move. Both the main flap 11 and sub-flap 12 remain fully closed. Ru. When the motor 15 is rotated in the direction of arrow F from this state, the rod 16 and and the rotating plate 20 also rotates in the same direction. Then, the first drive shaft 18 is connected to the first spring 21. Therefore, the first drive shaft 1 rotates in the same direction while maintaining the relative angle with the rotating plate 20. The main flap 11 fitted with 8 also moves in the same direction, moving from the fully closed state to the fully open state. buy. Then, at a position rotated 90 degrees from the fully closed state, the fully open state [(2-a), (2-b) state] state]. In this state, the may flap 11 serves as the second locking member. The protrusion 16a of the rod 16 is engaged with the protrusion 19a of the first crank 19. , 19b. In addition, the sub-flap 12 remains fully closed. Ru. When the motor 15 is further rotated in the direction of arrow F from this state, the rod 16 also rotates in the same direction. direction, the protrusion 16a pushes the protrusions 19a, 19b of the first crank 19. The spring force of the second spring 28 is overcome and the first crank 19, connecting rod 25, and second crank The ranks 26 are rotated and moved in the directions of arrows F, G, and H, respectively. And this first The rotation of the second crank 26 causes the second drive shaft 27 fitted to the second crank 26 to rotate. The sub-flap 12 rotates in the same direction and is fitted onto the second drive shaft 27 in the direction of arrow I. It moves in the direction from the fully closed state to the fully open state. Then, the rod 16 rotates 45 degrees. At this position, it becomes fully open state [(3-a), (3-b) state]. In this case, the main infrastructure Since the top 11 is locked by the second stopper 29, the first drive shaft 18 does not rotate. The rotating plate 20 is rotated by 45 degrees in the direction of arrow J with respect to the first drive shaft 18 together with the rod 16. It will be in a rotated state.

[0008] Next, when the motor 15 is rotated in the opposite direction (direction of arrow K), this motor 15 Due to the rotation, the rod 16 rotates in the same direction and the protrusion 16a becomes the protrusion of the first crank 19. 19a, 19b, but due to the spring force of the second spring 28, the first clamp The link 19 also rotates in the direction of the arrow K together with the rod 16, and the connecting rod 25 and the The second crank 26 and the second drive shaft 27 also move and rotate in the directions of arrows L and M, respectively. The sub-flap 12 moves in the N direction from the fully open state to the fully closed state. and, When the rod 16 is rotated 45 degrees, it becomes fully closed [states (2-a) and (2-b)]. . In this state, the first crank 19 is locked by the first stopper (not shown). , the protrusion 16b of the rod 16 abuts the protrusions 18a, 18b of the first drive shaft 18. in a state. When the motor 15 is further rotated from this state, the protrusion 16b of the rod 16 Since the protrusions 18a and 18b of the drive shaft 18 are pushed, the first drive shaft 19 is pushed against the rod 16 and The main flap 11 rotates together with the rotating plate 20, and the main flap 11 moves from the fully open state to the fully closed state. buy. Then, the rod 16 is in a fully closed state [(1-a), (1-b) state].

[0009] In this way, the rod 16 is provided with protrusions 16a and 16b that are perpendicular to each other, and The first drive shaft 18 and the first crank 19 are engaged with the projections 16a and 16b, respectively. The projections 18a, 18b, 19a, 19b are provided, and the first torsion coil spring 21 , since the second torsion coil spring 28 is provided, one motor 15 can drive two blades. 11 and 12 can be individually differentially driven in sequence, and two blades can be driven using two motors. Compared to conventional systems that use sequential individual differentials, weight and cost reductions are significant. can be achieved.

0010

[Effect of the idea]

As is clear from the above, the drive of two parallel blades in the air conditioner of this invention The mechanism includes a first crank part connected to a rod, one end of which is fitted to a drive motor that can rotate forward and backward. The other end of the rod is rotatably supported by one end of the first blade, and the rod is Two protrusions that protrude in the radial direction and are perpendicular to each other are provided on the rod at an interval in the axial direction. the first crank member is provided with a projection that engages with one of the projections of the rod; A protrusion that engages with the other protrusion of the rod is provided at one end of the first blade, and the rod and a first torsion coil bar that urges one end of the first blade in opposite circumferential directions. and a second crank member is connected to the first crank member via a connecting rod. , the second crank member is fitted with one end of the second blade, and the second crank part The material and the frame member are connected by a second torsion coil spring, and this second torsion coil spring When the connecting rod moves the second crank member toward the first crank member, the connecting rod moves toward the first crank member from a predetermined position. a first locking member that locks the connection rod, and the connecting rod is locked by the first locking member. Turn the rod 90 degrees in the opposite direction to the biasing direction of the second torsion coil spring. Since a second locking member is provided to lock the first blade at the rotated position, one The drive motor can operate the two blades individually in sequence, compared to the conventional two motors. The number of motors can be reduced compared to a system that operates two blades individually in sequence. This makes it possible to reduce weight and significantly reduce costs.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of a ceiling-embedded air conditioner using a drive mechanism according to an embodiment of the present invention.

FIG. 2 is a component diagram of the drive mechanism.

FIG. 3 is an assembly diagram of the drive mechanism.

FIG. 4 is an explanatory diagram of the operation of the drive mechanism.

[Explanation of symbols]

5... Air outlet, 11... Main flap, 12... Sub-flap, 15... Stepping motor for drive, 16... Rod,
16a, 16b... protrusion, 17... partition plate, 18... first drive shaft, 19... first crank, 20... rotating plate, 21... first torsion coil spring, 25... connecting rod, 26... second crank,
27...Second drive shaft, 28...Second torsion coil spring.

Claims (1)

[Scope of utility model registration request] Claim 1: A first blade (11) rotatably supported by a frame member (17) forming an air outlet (5) of an air conditioner, and whose axis of rotation is parallel to one side of the air outlet (5). ) and the second blade (12) are rotated around their rotation axis to adjust the direction of the wind blown out from the outlet (5) in a direction perpendicular to the axis. Parallel 2 in machine
Drive mechanism with single blades, drive motor capable of forward and reverse rotation
The first crank member (19) is fitted into the rod (16) whose one end is fitted into the rod (15), and the other end of the rod (16) is fitted into the rod (16).
The blade (11) is rotatably supported at one end (18), and the rod (16) is provided with two mutually perpendicular protrusions (16a, 16b) that protrude in the radial direction and are spaced apart in the axial direction, The first crank member (19) is provided with protrusions (19a, 19b) that engage with one protrusion (16a) of the rod (16), and one end (18) of the first blade (11) is provided with the rod ( Protrusions (18a, 18b) that engage with the other protrusion (16b) of the rod (16) and the first blade (11) are provided.
8) are connected by a first torsion coil spring (21) that urges each other in opposite circumferential directions, and the first crank member (19)
A second crank member (26) is connected to the second blade (12) via a connecting rod (25), and this second crank member (26) is connected to the second blade (12).
The second crank member (26) is fitted with one end (27) of the second crank member (26).
and the frame member (17) are connected by a second torsion coil spring (28), and the second crank member (26) is connected to the connecting rod (25) by the second torsion coil spring (28).
The first crank member is biased in a direction to move toward the crank member (19), and the connecting rod (25) is moved from a predetermined position to the first crank member.
(19) side, and from the state in which the connecting rod (25) is locked with the first locking member, the rod (16) is connected to the second torsion coil spring. Parallel in an air conditioner characterized in that a second locking member (29) is provided for locking the first blade (11) at a position rotated 90 degrees in the opposite direction to the urging direction of (28). Two blade drive mechanism.