JP2001304676A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner, in which driving force at a louver drive section can be reduced by providing an urging means at an interlocking section of suction louvers for opening/closing suction opening. SOLUTION: An air inlet 2 is provided at an upper part of at least the front face of a body 1, an air outlet 3 is made at a lower part of the front face, and a heat exchanger 4 and an air supply fan 5 are provided in an air passage connecting the air inlet and the air outlet. A suction panel 6, constituting the air inlet, is provided with a plurality of suction louvers 7 disposed vertically, such that a shaft part A at the lower part of the back face is borne turnably to conceal the air inlet under first state and to open the air inlet under second state, an interlocking section comprising a slider 8 for interlocking a plurality of suction louvers, and a louver drive section comprising a cam 9 interlinking with the interlocking section to move it vertically and a drive motor 10. The interlocking section is provided with means, comprising a tension coil spring 11 for urging the interlocking section downward, thus reducing the driving force at the louver drive section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to a biasing means provided in an interlocking portion for interlocking a suction louver for opening and closing a suction port to reduce a driving force by a louver driving portion. Related to the structure that was made possible.

[0002]

2. Description of the Related Art In a conventional air conditioner, for example, as shown in FIG. 4, a suction port 2 is provided at least on an upper portion of a front surface of a main body 1 and a filter F facing the suction port 2 is provided. An outlet 3 is provided in the lower part, and the inlet 2 and the outlet 3
A heat exchanger 4 and a blower fan 5 are provided in an air passage connecting the two, and are supported by a suction panel 6 constituting the suction port 2 so as to be rotatable up and down by a support shaft portion A provided at a lower portion on the back surface. In the first state, the suction port is concealed, and in the second state, a plurality of suction louvers 7 arranged vertically to be opened and a support shaft portion A of the plurality of suction louvers 7 are formed continuously. An interlocking portion including an interlocking arm 7a, an interlocking portion 8a interlocking with the interlocking arm 7a, and a slide plate 8 covered by a slide plate cover 8b; and a cam 9 which is linked to the slide plate 8 to move it up and down. And a louver drive unit including the drive motor 10.

However, the plurality of suction louvers 7
Is rotatably supported on the suction panel 6 by a support shaft portion A provided at a lower portion of the rear surface.
In particular, when rotating from the second state to the first state, the driving force of the louver drive unit that drives the interlocking unit exceeds the rotation force of the suction louver 7 that is about to rotate by its own weight. Therefore, it is necessary to use an expensive motor having a large driving torque as the driving motor 10.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, in the present invention, an urging means is provided in an interlocking portion for interlocking a suction louver for opening and closing a suction port, so that a driving force by a louver driving portion can be reduced. It is an object to provide an air conditioner as described above.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an air passage at at least an upper portion of a front surface of a main body, an air outlet at a lower portion of the front surface, and an air passage connecting the air inlet and the air outlet. A heat exchanger and a blower fan are provided, and a support shaft portion at a lower rear portion is rotatably supported by a suction panel constituting the suction port to conceal the suction port in the first state, and a second state is provided. A plurality of suction louvers arranged vertically so as to be opened in a state, and an interlocking unit for interlocking the plurality of suction louvers,
A louver drive unit for linking and moving the link unit up and down, wherein the link unit is provided with biasing means for biasing the link unit downward, thereby reducing the driving force of the louver drive unit. It has a configuration that enables it.

The interlocking portion includes a link arm formed continuously with the support shaft portion, and a slide plate provided with a link portion linked to the link arm and covered by a slide plate cover, while the louver is provided. The drive unit is constituted by a cam and a drive motor linked to the slide plate to move the slide plate up and down, and the urging means is linked to the slide plate.

Further, the driving motor is constituted by a stepping motor.

[0008] Further, the present invention is configured such that the urging force of the urging means does not exceed the force of the suction panel to rotate by its own weight in the second state.

The urging means is constituted by a tension coil spring having one end locked to the suction panel and the other end locked to the slide plate.

Further, the biasing means is constituted by a torsion coil spring having one end locked to the suction panel and the other end locked to the slide plate.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as examples. FIG. 1 is a cross-sectional view of an air conditioner according to the present invention, FIG. 2 is an explanatory view of an air conditioner according to the present invention, (A) is a cross-sectional view of a main part showing one example, and (B) is another example. FIG. 3 is an essential part cross-sectional view, and FIG. 3 is an explanatory view of an essential part of an air conditioner according to the present invention.

In the drawing, reference numeral 1 denotes an air conditioner main body, 2 denotes a suction port provided on the upper front surface and upper surface of the main body 1, F denotes a filter facing the suction port 2, and 3 denotes a lower front surface of the main body 1. 4 is a heat exchanger provided in an air passage connecting the suction port 2 and the blow port 3, 5 is a blower fan, 6 is a suction panel constituting the suction port 2, and 7 is the same suction port. A plurality of suction louvers rotatably supported vertically by a support shaft portion A at a lower portion of the rear surface of the panel 6 to open and close the suction port 2; 8 includes a link portion 8a linked to the plurality of suction louvers 7; The slide plate covered by the slide plate cover 8b, 9 is a cam linked to the slide plate 8, and 10 is the cam 9
The drive motor 10 drives the slide plate 8 to move up and down. The drive motor 10 moves the slide plate 8 up and down to rotate the suction louver 7 so that the suction port 2 is moved in the first state. And is opened in the second state.

In the air conditioner having the above-described basic configuration, a tension coil spring 11 or a torsion for urging the interlocking portion downward is provided to the interlocking portion including the slide plate 8 for interlocking the plurality of suction louvers 7. By providing a biasing means including a coil spring 12 so as to reduce the driving force of the louver driving section including the cam 9 and the driving motor 10, particularly in the case of the above-described prior art, particularly, When rotating the suction louvers 7 from the second state to the first state, the plurality of suction louvers 7 will each rotate by their own weights by the urging force of the urging means provided on the interlocking portion. Can be offset, and the drive motor 10 can be used at a low cost with a small drive torque.

Further, the interlocking portion includes a link arm 7a formed continuously with the support shaft portion A, and a slide plate 8 provided with a link portion 8a linked to the link arm 7a and covered by a slide plate cover 8b. While the louver drive section comprises:
A cam 9 linked to the slide plate 8 to move it up and down
And the drive motor 10, and the urging means is linked to the slide plate 8,
The drive force of the drive motor 10 is smoothly and accurately linked to the slide plate 8 and the link arm 7a, so that the plurality of suction louvers 7 can be turned around the support shaft portion A. Further, since the urging means is linked to the slide plate 8 without being linked to the plurality of suction louvers 7, respectively, the plurality of suction louvers 7 are rotated by their own weights by the urging force of the urging means. You can cancel the rotational force you are trying to do at once.

The drive motor 10 is constituted by a stepping motor, so that the plurality of suction louvers 7 are opened according to an operation state such as a rapid cooling / heating operation by a strong wind or a cooling / heating operation by a breeze. The degree can be selectively adjusted appropriately, and the user can immediately determine the driving state by looking at the opening degrees of the plurality of suction louvers 7 at a glance.

In addition, the urging force of the urging means is prevented from exceeding the force of the plurality of suction panels 7 to rotate by their own weight in the second state. When turning 7 from the first state to the second state, similarly to when turning from the second state to the first state described above, the drive motor 10 An inexpensive drive torque can be used.

Next, based on FIG.
The relationship between the rotational force of the spring that is to be rotated by its own weight and the urging force for urging the slide plate 8 and the set value of the tension of the spring forming the urging means will be described. The rotational force F ₁ of the suction panel 7 due to its own weight is represented by F ₁ = m · g · cos θ where G is the center of gravity of the suction panel, m is the mass, and g is the acceleration of gravity. force F ₂ is _{F 2 = L 1 / L 2} · (F 1) = the biasing force of the sliding direction of the _{L 1 / L 2 · (m} · g · cosθ) said by the force F2 slider 8 F ₂ · cos [theta] = _{L 1 / L 2 · (m} · g · (cosθ) 2) spring tension T is T = T ₀ + the spring constant and the initial tension at the time with the spring assembly and T ₀ as k (k · L ₂ · sinθ It is desirable to set the tension of the spring forming the urging means so that T <F ₂ · cos θ when the rotation angle θ of the suction panel is 0 to 30 °.

As shown in FIG. 2A, the urging means comprising the tension coil spring 11 has one end engaged with the suction panel 6 and the other end engaged with the slide plate 8, as shown in FIG. Since the slide plate 8 is stopped and provided on the same line as the vertical movement direction of the slide plate 8, the slide plate 8 can be accurately biased by a stable biasing force without unevenness.

Further, as another embodiment, as shown in FIG. 2 (B), the urging means composed of the torsion coil spring 12 is provided as follows.
Since one end is locked to the suction panel and the other end is locked to the slide plate, the slide plate 8 can be accurately biased by a stable biasing force as in the case of the first embodiment. Become.

With the above configuration, as shown in FIG. 1, FIG. 2 (A), FIG. 2 (B), and FIG. 3, an interlocking section comprising the slide plate 8 for interlocking the plurality of suction louvers 7 Further, an urging means comprising a tension coil spring 11 or a torsion coil spring 12 for urging the interlocking section downward is provided so that the driving force by the louver driving section comprising the cam 9 and the driving motor 10 can be reduced. Therefore, when the plurality of suction louvers 7 are rotated from the second state to the first state, as in the prior art described above, the urging means provided on the interlocking portion is particularly used. , The rotational force of the plurality of suction louvers 7 trying to rotate by their own weights can be offset, and the drive motor 10
Is an air conditioner that can use an inexpensive one with small driving torque.

[0021]

As described above, according to the present invention,
An air conditioner is provided in which an urging means is provided in an interlocking portion that interlocks a suction louver that opens and closes a suction port, so that a driving force by a louver driving unit can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of an air conditioner according to the present invention.

FIGS. 2A and 2B are explanatory views of an air conditioner according to the present invention, wherein FIG. 2A is a cross-sectional view of a main part showing one example, and FIG. 2B is a cross-sectional view of a main part showing another example.

FIG. 3 is an explanatory view of a main part of an air conditioner according to the present invention.

FIG. 4 is a sectional view of a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner main body 2 Inlet 3 Outlet 4 Heat exchanger 5 Blower fan 6 Suction panel 7 Suction louver 7a Link arm 8 Slide plate 8a Link portion 8b Slide plate cover 9 Cam 10 Drive motor 11 Tension coil spring 12 Twist Coil spring A Support shaft F Filter

Claims (6)

[Claims] An inlet is provided at least at an upper portion of a front surface of a main body, an outlet is provided at a lower portion of the front surface, and a heat exchanger and a blower fan are provided in an air passage connecting the inlet and the outlet. A plurality of suction louvers arranged vertically so as to rotatably support a support shaft portion at the lower rear portion of the suction panel to conceal the suction port in the first state and to open the suction port in the second state. And an interlocking unit for interlocking the plurality of suction louvers,
A louver drive section for linking and moving the link section up and down, and the link section is provided with a biasing means for biasing the link section downward to reduce the driving force of the louver drive section. An air conditioner characterized by being made possible. 2. The louver according to claim 2, wherein the interlocking portion includes a link arm formed continuously with the support shaft portion, and a slide plate provided with a link portion linked to the link arm and covered by a slide plate cover. 2. The air according to claim 1, wherein a driving unit includes a cam and a driving motor that link the slide plate to move the slide plate up and down, and the urging unit is linked with the slide plate. 3. Harmony machine. 3. The air conditioner according to claim 2, wherein the drive motor comprises a stepping motor. 4. The apparatus according to claim 1, wherein the urging force of the urging means does not exceed a force of the suction panel to rotate by its own weight in the second state. The air conditioner according to item 1. 5. The tensioning means comprises a tension coil spring having one end locked to the suction panel and the other end locked to the slide plate. Item 5. The air conditioner according to Item 4. 6. The spring according to claim 1, wherein said biasing means comprises a torsion coil spring having one end locked to said suction panel and the other end locked to said slide plate. Or the air conditioner according to claim 4.