Powerless actuating device for window of outdoor unit room

Abstract

The present invention provides a power-free driving device for an outdoor unit room ventilation window installed in the outdoor unit room ventilation window. The outdoor unit room ventilation window comprises a plurality of louvers, a plurality of rotating bodies that rotate together with the plurality of louvers, and a connecting unit connecting the plurality of rotating bodies. The power-free driving device comprises: a shape memory spring made of a shape memory alloy that deforms due to the temperature of hot air discharged from an outdoor unit provided in the outdoor unit room; and a return spring made of a metal other than a shape memory alloy that exerts elastic force in a direction opposite to the direction in which the shape memory spring deforms due to the temperature of the hot air. The device comprises a rotating body fastening end connected to a lever rotating body, which is one of the plurality of rotating bodies, and a spring fastening end opposite to the rotating body fastening end, wherein the spring fastening end is provided with a spring direct connection hole in which one end of the shape memory spring and one end of the return spring are movably directly connected, and the opening / closing lever rotates the lever rotating body in the opening / closing direction of the outdoor unit room ventilation window by the torque directly applied by the shape memory spring and the return spring to the spring fastening end.

Description

Technology Field

[0001] The present invention relates to a power-free driving device for an outdoor unit room ventilation window, and more specifically, to a driving device for automatically rotating a plurality of louvers arranged to rotate in conjunction with each other in a ventilation window of an outdoor unit room without power supply depending on whether hot air is discharged from the outdoor unit. Background Technology

[0002] Nowadays, outdoor units for air conditioners are mandatorily installed inside each household in accordance with the Regulations on Housing Construction Standards, etc. and the Enforcement Decree of the Multi-Unit Housing Management Act. Accordingly, each household is provided with an outdoor unit room to house the air conditioner's outdoor unit, and a ventilation window is installed in this room to expel the hot air discharged from the outdoor unit to the outside during operation. Furthermore, this ventilation window in the outdoor unit room is generally designed to be opened and closed by multiple louvers that interlock and rotate simultaneously.

[0003] The manual opening and closing method of opening and closing the outdoor unit room ventilation window by manually rotating the louvers causes inconvenience for the user, who must rotate the louvers to open the outdoor unit room ventilation window to discharge hot air from the outdoor unit every time the air conditioner is turned on, and also causes inconvenience for the user, who must rotate the louvers to close the outdoor unit room ventilation window to prevent dust, rainwater, etc. from entering every time the air conditioner is turned off.

[0004] Accordingly, an automatic opening and closing method was developed to automatically rotate louvers to open and close the ventilation window of the outdoor unit room. Such automatic opening and closing methods include a method using a power-driven device that operates by receiving power, and a method using a power-free driven device that operates without power supply. The latter method is disclosed in Registered Patent Publication No. 10-2122644 (Actuator device of a shape memory spring dependent on outdoor unit wind temperature in a multi-louver interlocking automatic opening and closing ventilation window), Registered Patent Publication No. 10-2504191 (Power-free louver ventilation window for an outdoor unit room), and Published Patent Publication No. 10-2025-0086529 (Louver opening and closing handle).

[0005] In the prior art disclosed in the above prior art, a power-free driving device comprises a shape memory spring whose shape changes according to the temperature of the hot air discharged from the outdoor unit when the air conditioner is operated, a return spring that exerts an elastic force to restore the shape memory spring to its original shape, and an opening / closing lever having one end coupled to the rotation axis of one of a plurality of louvers and a free end on the opposite side. And one end of the shape memory spring and one end of the return spring are connected to the free end of the opening / closing lever, and are connected through a power transmission medium that indirectly transmits power generated by the combination of the shape memory spring and the return spring to the free end of the opening / closing lever [meaning the link (6) and drive body (10) of Registered Patent Publication No. 10-2122644, the variable shaft and drive block (21) of the pivot link (22) of Registered Patent Publication No. 10-2504191, and the connecting link shown in Drawings 5 ​​and 6 of Published Patent Publication No. 10-2025-0086529]. Prior art literature

[0006] Registered Patent Publication No. 10-2122644 (Actuator device of a shape memory spring dependent on outdoor unit wind temperature in a multi-louver interlocking automatic opening and closing ventilation window) Registered Patent Publication No. 10-2504191 (Powerless louver ventilation window for outdoor unit room) Published Patent Publication No. 10-2025-0086529 (Louver opening and closing handle) The problem to be solved

[0007] However, in the above-mentioned conventional power-free drive device, power generated by a combination of a shape memory spring and a return spring is indirectly transmitted to the free end of the opening / closing lever, and consequently, there is a problem in that a power transmission medium provided to enable the indirect transmission of said power must be used to connect the shape memory spring and the return spring with the opening / closing lever.

[0008] Accordingly, the present invention aims to provide a power-free driving device for an outdoor unit ventilation window that solves the aforementioned conventional problems, and more specifically, a power-free driving device for an outdoor unit ventilation window configured to directly transmit power generated by a combination of a shape memory spring and a return spring to the free end of an opening / closing lever without the power transmission medium. means of solving the problem

[0009] The present invention provides a power-free driving device for an outdoor unit room ventilation window installed in the outdoor unit room ventilation window. The outdoor unit room ventilation window comprises a plurality of louvers, a plurality of rotating bodies coupled to each rotation axis of the plurality of louvers and rotating together with the plurality of louvers, and a connecting unit connecting the plurality of rotating bodies so that the plurality of rotating bodies rotate simultaneously. The power-free driving device comprises: a shape memory spring made of a shape memory alloy that deforms due to the temperature of hot air discharged from an outdoor unit provided in the outdoor unit room; and a return spring made of a metal other than a shape memory alloy that exerts elastic force in a direction opposite to the direction in which the shape memory spring deforms due to the temperature of the hot air. The device comprises a rotating body fastening end connected to a lever rotating body, which is one of the plurality of rotating bodies, and a spring fastening end opposite to the rotating body fastening end, wherein the spring fastening end is provided with a spring direct connection hole in which one end of the shape memory spring and one end of the return spring are movably directly connected, and the opening / closing lever rotates the lever rotating body in the opening / closing direction of the outdoor unit room ventilation window by the torque directly applied by the shape memory spring and the return spring to the spring fastening end.

[0010] One end of the shape memory spring and one end of the return spring are provided in a ring shape and are directly connected to the spring direct connection hole. At this time, the opening / closing lever includes a first member and a second member coupled by a rotating pin so as to be folded and unfolded. Then, one end of the first member and one end of the second member are provided in a hook shape so that when unfolded, a gap is formed through which the ring-shaped end of the shape memory spring and the ring-shaped end of the return spring can pass, and when folded, they overlap each other to form the spring direct connection hole.

[0011] The length of the overlapping section between one end of the first member and one end of the second member is formed so that the ring-shaped end of the shape memory spring and the ring-shaped end of the return spring do not extend beyond the overlapping section.

[0012] The rotary body for the lever comprises a body to which the rotation axis of the louver is coupled, and a male member having a flange formed at one end of the body. Additionally, a pair of pin holes are formed in the flange of the male member through which a pair of pins rotatably penetrating the connecting unit pass, and the opposite end of the first member and the opposite end of the second member are arranged to grip the pair of pins and the body of the male member when the folding is performed.

[0013] The rotary body for the lever further includes a female member that is press-fitted into the body of the male member. In this case, the portion that is engaged by the opposite end of the first member and the opposite end of the second member is located between the female member press-fitted into the body and the flange of the male member. Effects of the invention

[0014] According to the present invention, since one end of a shape memory spring and one end of a return spring are directly connected to the spring connection end of the opening / closing lever and the power (torque) generated by the springs is directly transmitted to the opening / closing lever, a power transmission medium that indirectly transmits the power (torque) generated by the springs to the opening / closing lever is unnecessary.

[0015] In addition, according to the present invention, it is possible to directly connect one end of the springs to the spring connecting end of the opening / closing lever so that it does not detach from the spring connecting end of the opening / closing lever.

[0016] In addition, according to the present invention, high strength is ensured for the spring connection end of the opening / closing lever, to which one end of the springs is directly connected.

[0017] In addition, according to the present invention, the left and right movement range of the opening and closing lever can be minimized. Brief explanation of the drawing

[0018] FIG. 1 is a front view showing a partially disassembled power-free driving device for an outdoor unit ventilation window according to the present invention. Figure 2 is a plan view of the right frame shown in Figure 1. Figure 3 is a right-side view of the rotating bodies shown in Figure 1. Figure 4 shows the extended state of the opening and closing lever shown in Figure 1. Figure 5 shows the folded state of the opening and closing flap shown in Figure 1. Figure 6 illustrates the state in which the opening / closing lever shown in Figure 1 is placed in the closed position. Figure 7 illustrates the state in which the opening / closing lever shown in Figure 1 is placed in the open position. FIG. 8 is a left side view of the rotating body for the lever shown in FIG. 1. Fig. 9 is a left side view of the rotating body shown in Fig. 1. Specific details for implementing the invention

[0019] Hereinafter, preferred embodiments of a power-free driving device for an outdoor unit ventilation window according to the present invention will be described in detail with reference to the drawings. Terms and words used below should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe their invention.

[0020] For convenience of explanation and clear understanding, the view of the ventilation window in FIG. 1 from the outdoor unit room is used as the front view, and the left and right sides are set based on this front view. For reference, FIG. 1 only shows the structure of the right side of the ventilation window, and only about three louvers (10) necessary for understanding the present invention are shown.

[0021] The ventilation window of the outdoor unit room, on which the power-free driving device (100) according to the present invention is installed, includes a plurality of louvers (10) arranged in parallel vertically. A rotation axis (12) is provided at the right end of each louver (10), and a rotation axis (not shown) is also provided at the left end of each louver (10). The right rotation axis (12) of each louver (10) rotatably penetrates the flat plate (42) of the right frame (40), and the left rotation axis (not shown) of each louver (10) rotatably penetrates the flat plate of the left frame (not shown).

[0022] The right frame (40) also includes a folded plate (44) that is folded into a 'U' shape. As shown in FIG. 2, a slit (48) extending vertically is provided on the left end of the front side (44a) and the left end of the back side (44b) of the folded plate (44). When the flat plate (42) is tightly fitted into the slit (48) in the vertical direction, the flat plate (42) and the folded plate (44) are joined. When this joining is achieved, an internal space (40a) is formed inside the right frame (40), surrounded by the front side (44a), back side (44b), and right side (44c) of the flat plate (42) and the folded plate (44). For reference, FIG. 1 shows the right frame (40) in a state where the flat plate (42) and the folded plate (44) are separated. Meanwhile, the member of the left frame that joins with the flat plate of the left frame is not particularly limited.

[0023] The above-mentioned outdoor unit ventilation window also includes a rotating body (20, 130) located in the internal space (40a) of the right frame (40). The rotating bodies (20, 130) are each connected to the right rotation axes (12) of the louvers (10) and rotate together with the louvers (10). The rotating bodies (20, 130) may also be connected to the left rotation axes of the louvers (10), or alternatively, may not be provided on the left rotation axes.

[0024] The above-mentioned outdoor unit ventilation window is located in the internal space (40a) of the right frame (40) and includes a connecting unit that connects the rotating bodies (20, 130) so that the rotating bodies (20, 130) rotate simultaneously. This connecting unit includes a plurality of pairs of connecting rods (30). Each pair of connecting rods (30) is arranged to be positioned apart from each other in a parallel position, and rotatably passes through a pin (26, 136) that is fastened to the front and rear ends of two vertically adjacent rotating bodies (20, 130).

[0025] In the ventilation window of the outdoor unit room described above, when one louver (10) rotates, the remaining louvers (10) also rotate simultaneously, and the ventilation window of the outdoor unit room is opened or closed by this simultaneous rotation of the louvers (10).

[0026] The power-free driving device (100) according to the present invention, to be installed in the ventilation window of an outdoor unit room as described above, includes a shape memory spring (110) and a return spring (120).

[0027] The shape memory spring (110) is made of a shape memory alloy that deforms due to the temperature of the hot air discharged from the outdoor unit equipped in the outdoor unit room. The return spring (120) is made of a metal other than a shape memory alloy and exerts elastic force in a direction opposite to the direction in which the shape memory spring (110) deforms due to the temperature of the hot air.

[0028] FIG. 1 illustrates an example in which a shape memory spring (110) is positioned below and a return spring (120) is positioned above. In this case, when hot air is discharged from the outdoor unit, the shape memory spring (110) is configured to contract and deform due to the temperature of the hot air, and the return spring (120) is configured as a tension coil spring that exerts elastic force in the direction of extending the contracted shape memory spring (110).

[0029] The above-described power-free drive device (100) also includes an opening / closing lever (140). This opening / closing lever (140) is equipped with a rotating body connecting end and a spring connecting end opposite thereto, wherein the rotating body connecting end is connected to a rotating body (130) for the lever, and the spring connecting end is directly connected to one end (112) (upper end in FIG. 1) of a shape memory spring (110) and one end (122) (lower end in FIG. 1) of a return spring (120).

[0030] Here, the lever rotor (130) is any one of the rotors selected from the rotors (20, 130). This lever rotor (130) may include a male member (132) as shown in FIGS. 1 and FIGS. 8. The male member (132) has a body (132a) and a flange (132b) integrally formed on the right end of the body (132a). A rotation shaft coupling groove (133) having the same shape as the rotation shaft (12) of the louver is formed on the left side of the body (132a). When the rotation shaft (12) of the louver (10) is inserted into this rotation shaft coupling groove (133), a coupling is formed between the rotation shaft (12) and the lever rotor (130) so that the louver (10) and the lever rotor (130) rotate together. The flange (132b) is provided with four pin holes (136a) arranged at 90-degree intervals along the circumferential direction, and two of the pin holes (136a) spaced 180 degrees apart have a pair of pins (136) rotatably passing through a pair of connecting rods (130). The pair of pins (136) can rotatably pass through the flange (132b).

[0031] The lever rotating body (130) may further include a female member (134). In this case, a hollow is formed in the female member (134) to tightly fit the body (132a) of the male member (132). When fitting the body (132a) of the male member (132) into the hollow of the female member (144), the female member (134) is fitted so as to be separated from the flange (132b) of the male member (132), as shown in FIG. 1. Additionally, on the outer surface of the female member (134), as shown in FIG. 8, four pin grooves (136b) are arranged at 90-degree intervals along the circumferential direction for the pins (136) that penetrate the pin holes (136a) to pass through.

[0032] Returning to the opening / closing lever (140) to continue the explanation, the opening / closing lever (140) includes a first member (144) and a second member (145) as shown in FIGS. 4 and 5. The first member (144) and the second member (145) are connected by a rotating pin (142), and rotate around the rotating pin (142) to become an unfolded state as shown in FIG. 4 or a folded state as shown in FIG. 5.

[0033] One end (144a) of the first member (144) is provided in a hook shape, and one end (145a) of the second member (145) is also provided in a hook shape. In the unfolded state as in FIG. 4, a gap is formed between one end (144a) of the first member (144) and one end (145a) of the second member (145), so that the upper end (112) of the shape memory spring (110) and the lower end (122) of the return spring (120) can pass through the gap. In addition, in a folded state as shown in FIG. 5, one end (144a) of the first member (144) and one end (145a) of the second member (145) overlap each other to form a spring direct connection hole (141) at the spring connection end, and as a result, the upper end (112) of the shape memory spring (110) and the lower end (122) of the return spring (120) cannot be removed from the spring direct connection hole (141).

[0034] Even if the spring direct connection hole (141) is in the shape of a perfect circle, if the upper end (112) of the shape memory spring (110) and the lower end (122) of the return spring (120) are in the shape of a hook, these upper and lower ends (112, 122) can be removed from the spring direct connection hole (141), so the upper end (112) of the shape memory spring (110) and the lower end (122) of the return spring (120) are also provided in the shape of a ring. Here, the upper end (112) of the shape memory spring (110) is a part of the shape memory spring (110) and is made of a shape memory alloy material like other parts, and is not combined with a separately manufactured ring-shaped member. Likewise, the lower end (122) of the return spring (120) is also a part of the return spring (120) and is made of the same metal material as other parts, and is not combined with a separately manufactured ring-shaped member. Meanwhile, the spring direct connection hole (141) has a diameter larger than the sum of the thickness (diameter) of the metal wire constituting the upper part (112) of the shape memory spring (110) and the thickness (diameter) of the metal wire constituting the lower part (122) of the return spring (120) so that movement of the upper part (112) of the shape memory spring (110) and the lower part (122) of the return spring (120) is possible.

[0035] Furthermore, in a folded state as in FIG. 5, the opposite end (144b) of the first member (144) and the opposite end (145b) of the second member (145) hold the body (132a) of the lever rotor (130) together, thereby allowing the opposite ends (144b, 145b) to act as rotor fastening ends. At this time, the opposite ends (144b, 145b) also hold a pair of pins (136) that penetrate the connecting rod (130) and the flange (132b) of the lever rotor (130).

[0036] Additionally, the part that is held by the opposite ends (144b, 145b) is the part located between the female member (134) which is press-fitted into the body (132a) of the lever rotating body (130) and the flange (132b), so that the left and right movement range of the opening / closing lever (140) can be minimized by the female member (134) and the flange (132b).

[0037] In addition, the length of the overlapping section between one end (144a) of the first member (144) and one end (145a) of the second member (145) is preferably formed to be sufficiently long so that one end (112) of the shape memory spring (110) and one end (122) of the return spring (120) do not extend beyond the overlapping section. In this case, as shown in FIG. 6, when the opening / closing lever (140) is in the closed position [a position that causes the louvers (10) to close the ventilation window], both ends (112, 122) of both springs (110, 120) are overlapping the overlapping section, and as shown in FIG. 7, when the opening / closing lever (140) is in the open position [a position that causes the louvers (10) to open the ventilation window], both ends (112, 122) of both springs (110, 120) are also overlapping the overlapping section, so high strength of the spring connection end of the opening / closing lever (140) can be ensured.

[0038] Meanwhile, the structure of the remaining rotating bodies (20), excluding the lever rotating body (130), does not need to be specifically limited as long as it is possible to combine with the louver rotation axis (12) and with the connecting member (30). However, it is advantageous if the injection mold used to manufacture the lever rotating body (130) can also be used to manufacture the remaining rotating bodies (20). As shown in FIG. 9, it is preferable that the remaining rotating bodies (20) also have the same male member (22) and female member (24) as the male member (132) and female member (134) of the lever rotating body (130). However, when installing the power-free driving device (100) according to the present invention in an already installed ventilation window equipped with rotating bodies of a different structure from the lever rotating body (130), it is convenient to replace only one of the rotating bodies of the different structure with the lever rotating body (130), in which case the lever rotating body (130) becomes different from the remaining rotating bodies.

[0039] Hereinafter, the installation and operation process of the power-free driving device (100) according to the present invention will be described.

[0040] First, the rotation axis (12) of the louvers (10) is connected to the flat plate (42), and the rotating bodies (20, 130) are connected to the rotation axis (12), and then the connecting rods (30) are connected to the rotating bodies (20, 130) using pins (26, 136). Then, the bending plate (44) is connected to the flat plate (42).

[0041] Afterwards, the opening / closing lever (140) is inserted in an extended state into the vertically elongated lever hole (46, see FIG. 1) formed on the front surface (44a) of the folding plate (44), and the upper end (112) of the shape memory spring (110) and the lower end (122) of the return spring (120) are hooked onto the hook of the spring connection end of the opening / closing lever (140). Then, the opening / closing lever (140) is folded and connected to the lever rotating body (130). Afterwards, a bolt (not shown) is inserted into the bolt hole (153, see FIG. 5), and a nut (not shown) is fastened to the bolt to firmly maintain the folded state of the opening / closing lever (140). Then, the lower end of the shape memory spring (110) is hung on a bracket (not shown) fixed to the front surface (44a) of the bending plate (44), and the upper end of the return spring (120) is hung on another bracket (not shown) fixed to the front surface (44a) of the bending plate (44), thereby completing the installation of the power-free drive device (100).

[0042] In this state, when the air conditioner operates during the summer, the shape memory spring (110) overcomes the elastic force of the return spring (120) due to the temperature of the hot air discharged from the outdoor unit and pulls the spring connection end of the opening / closing lever (140) downward. Then, the lever rotating body (130) rotates, causing the remaining rotating bodies (20) and louvers (10) to rotate, thereby opening the ventilation window of the outdoor unit room. Then, when the air conditioner stops, the return spring (120) pulls the spring connection end of the opening / closing lever (140) upward, then the lever rotating body (130) rotates in the opposite direction, causing the remaining rotating bodies (20) and louvers (10) to rotate in the opposite direction, thereby closing the ventilation window of the outdoor unit room.

[0043] As described above, although the present invention has been explained by limited embodiments and drawings, the present invention is not limited thereto and can be modified and varied in various ways by those skilled in the art within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below, and the above-described embodiments can be combined in various ways. Explanation of the symbols

[0044] 10 : Louver 12 : Rotation axis 20 : Rotating body 30 : Connecting unit (connector) 100: Powerless drive device for outdoor unit room ventilation window 110: Shape memory spring 112: Ring shape 120 : Return spring 122 : Ring shape 130: Rotating body for lever 132: Male member 132a : Body 132b : Flange 134 : Female absence 136 : Pin 140: Opening / closing lever 141: Spring direct connection hole 142 : Rotating pin 143 : Bolt hole 144 : First member 145 : Second member 144a, 145a: Hook shape

Claims

Claim 1 delete Claim 2 delete Claim 3 A power-free driving device for an outdoor unit room ventilation window installed in an outdoor unit room ventilation window, comprising a plurality of louvers, a plurality of rotating bodies coupled to each rotation axis of the plurality of louvers and rotating together with the plurality of louvers, and a connecting unit connecting the plurality of rotating bodies so as to rotate the plurality of rotating bodies simultaneously, the device comprising: a shape memory spring made of a shape memory alloy that deforms by the temperature of hot air discharged from an outdoor unit provided in the outdoor unit room; and a return spring made of a metal other than a shape memory alloy that exerts elastic force in a direction opposite to the direction in which the shape memory spring deforms by the temperature of the hot air. The opening / closing lever comprises a rotating body fastening end that is fastened to a rotating body for a lever, which is one of the plurality of rotating bodies, and a spring fastening end opposite to the rotating body fastening end, and a spring direct connection hole provided in the spring fastening end to which one end of the shape memory spring and one end of the return spring are movably directly connected, and which rotates the rotating body for the lever in the opening / closing direction of the outdoor unit room ventilation window by a torque directly applied by the shape memory spring and the return spring to the spring fastening end; wherein one end of the shape memory spring and one end of the return spring are provided in a ring shape and are directly connected to the spring direct connection hole, and the opening / closing lever includes a first member and a second member coupled by a rotating pin so as to be foldable and unfoldable, wherein one end of the first member and one end of the second member are provided in a hook shape, and when unfolded, they form a gap through which the ring-shaped end of the shape memory spring and the ring-shaped end of the return spring can pass, and when folded, they overlap each other. A power-free driving device for an outdoor unit room ventilation window forming the above-mentioned spring direct connection hole. Claim 4 In paragraph 3, the length of the overlapping section between one end of the first member and one end of the second member is formed such that the ring-shaped end of the shape memory spring and the ring-shaped end of the return spring do not extend beyond the overlapping section, for a power-free driving device for an outdoor unit room ventilation window. Claim 5 In paragraph 3, the lever rotating body comprises a body to which the rotation axis of the louver is coupled and a male member having a flange formed at one end of the body, wherein a pair of pin holes are formed in the flange of the male member through which a pair of pins rotatably penetrating the connecting unit pass, and the opposite end of the first member and the opposite end of the second member are arranged to hold the pair of pins and the body of the male member together when the folding is performed, thereby forming a power-free driving device for an outdoor unit room ventilation window. Claim 6 In claim 5, the lever rotating body further comprises a female member that is press-fitted into the body of the male member, and the portion that is held by the opposite end of the first member and the opposite end of the second member is located between the female member press-fitted into the body and the flange of the male member, for a power-free driving device for an outdoor unit room ventilation window.

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