DE20114659U1 - Face plate device of a blower for an air conditioner - Google Patents

Description

Patent attorneys

KERN, BREHM & PARTNERS GbR

Albert-Rosshaupter-Str. 73 - D - 81369 Munich - Telephone (089) 760 55 20 760 55 26 - Fax (089) 760 55 59

Kuo.C-9791/GM

5 September 2001

Chin-Sheng KUO No. 45, Lane 738, Chung-Cheng Rd., Kuan-Miao Hsiang, Tainan Hsien,

Taiwan, R.O.C.

Front plate device of a fan for an air conditioning system

The invention relates to a front plate device, also called a front plate device, of a fan for an air conditioning system.

Known conventional air conditioning systems, such as one of them shown in Fig. 1, are often installed with numerous wind outlets 11 and wind inlets 12 on the ceiling formed by means of steel frames 10. The known systems use wind pipes to connect the wind outlets 11 to a main machine. Each wind outlet 11 is provided with a guide plate formed as a face plate which has radial inclined surfaces integrated in a fixed arrangement and is not capable of changing the discharge angle thereof so that the cold air flowing through the guide plate is restricted in any radial direction. Around each wind outlet 11 is provided a wind inlet 12 which is formed of a face plate integrating a filter net. This is disadvantageous for repair work because the entire face plate has to be dismantled when components inside the air conditioning system are to be repaired. It is a tedious job for a repairman to dismantle so many face plates for repair and cleaning purposes. Such work is tedious and time-consuming. In order to provide each room with an equivalent circulation of cool air, each end plate is provided with a wind pipe base for connecting a wind pipe, in addition to the end plates of the wind outlets 11 and the wind inlets 12, which are distributed over the entire ceiling formed by steel frames 10, which components must be properly connected to each other. This also represents a great deal of work for a repairman.

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load and significantly increases the time required for construction. In addition, the difficulties of securing such a large number of intersecting wind tubes in place and of keeping the wind tube bases in close connection with the wind tubes not only complicate the construction process but also significantly complicate the work required for subsequent maintenance and repair.

The invention is based on the object of creating a front plate device of a fan for an air conditioning system which can be used in a more versatile manner. In particular, it should be possible to blow out and suck in wind or air with one and the same front plate device, wherein the front plate should also fulfill the functions of blowing out and sucking in wind, adjusting the blowing direction and should be easy to install and repair and should have a forced wind suction.

This object is achieved according to the invention by a front plate device having the features of claim 1.

Advantageous further training is the subject of the dependent claims.

The front plate device according to the invention has in particular at least one wind outlet and at least one wind inlet which are located next to each other, each wind outlet having a pivoting body controlled by a drive device for performing pivoting movements, with the aid of which the flow direction of the cold air can be adjusted, and is covered with a wind outlet cover which is connected to at least one wind pipe; each wind inlet is provided with a filter net and with a detachable wind inlet grille and is covered by a wind inlet cover connected to at least one wind pipe, by which combination of the components described above a front plate device is created which is able to blow out and suck in wind in a single front plate and which fulfills the functions of blowing out wind, sucking in wind, adjusting the flow direction, quick installation and repair and forced wind intake.

According to one embodiment of the invention, a front plate device of a fan for an air conditioning system is provided, which has a front plate and at least one wind outlet cover, wherein the front plate is provided with at least one wind outlet and at least one wind inlet, which are located next to each other, each wind outlet is provided with a pivoting body which is connected to a motor of a drive device for carrying out pivoting movements and is controllable by the latter in order to change the flow direction

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of the cold air, each wind inlet is provided with at least one wind inlet grille and at least one detachable filter net; each wind outlet cover covers the respective wind outlet of the front plate and is provided with at least one wind outlet opening which is formed at a suitable point on the wind outlet cover for the purpose of connecting a wind pipe, by which combination of components described above the front plate device according to the invention of a fan for an air conditioning system is able to blow out and suck in wind in a front plate and to fulfil the functions of blowing out wind, sucking in wind and adjusting the flow direction.

According to a further development of the invention, a front plate device of a fan for an air conditioning system is provided, which has a front plate and at least one wind outlet cover and at least one wind inlet cover, wherein the front plate has at least one wind outlet and at least one wind inlet, which are arranged next to one another, each wind outlet is provided with a pivoting body which is connected to a motor of a drive device for the purpose of carrying out pivoting movements and can be controlled by this in order to adjust the flow direction of the cool air, each wind inlet is provided with at least one wind inlet grille and at least one detachable filter net; each wind outlet cover covers the respective wind outlet of the front plate and is provided with at least one wind outlet opening which is formed at a suitable point on the wind outlet cover for the purpose of connection to a wind pipe; each wind inlet cover covers the respective wind inlet of the face plate and is provided with at least one wind inlet opening which is formed at a suitable location on the wind inlet cover for connection to a wind pipe in order to forcibly blow air in a room back to a blower, by which combination of components described above the face plate device according to the invention of a blower for an air conditioning system is able to blow out and suck in wind in a face plate and to carry out the functions of blowing out wind, sucking in wind, adjusting the flow direction and forced wind suction.

According to another development of the invention, a front plate device of a fan of an air conditioning system is provided, which has a front plate, at least one wind outlet cover and at least one wind inlet cover, wherein the front plate is provided with at least one wind outlet and at least one wind inlet, which are arranged next to each other, each wind outlet is provided with a pivoting body which is connected to a motor of a drive device for the purpose of carrying out pivoting movements and can be controlled by this in order to adjust the flow direction of the cold air, each wind inlet is connected to at least one detachable wind inlet grille and at least one detachable filter net, each detachable wind inlet grille is easy to handle for a repairman.

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bar in order to be able to check and, if necessary, repair components inside the front plate device; wherein each wind outlet cover covers the respective wind outlet of the front plate and is provided with at least one wind outlet opening which is formed at a suitable location on the wind outlet cover for connection to a wind pipe; each wind inlet cover covers the respective wind inlet of the front plate and is provided with at least one wind inlet opening which is formed at a suitable location on the wind inlet cover for connection to a wind pipe in order to carry out the forced wind extraction, by which combination of the previously described components a front plate device according to the invention of a fan for an air conditioning system is created which is able to blow out and suck in wind in a front plate and to fulfill the functions of blowing out wind, sucking in wind, adjusting the flow direction as well as forced wind extraction and quick installation and repair with detachable wind inlet grilles.

An embodiment of the subject matter of the invention is explained in more detail below with reference to the drawings, wherein all described and/or illustrated features, individually or in any combination, form the subject matter of the present invention, regardless of their summary in the claims or their reference back to them. They show:

Fig. 1 is a schematic bottom view of a known, conventional air conditioning system.

stems, in which an arrangement of wind outlets and wind inlets on a

Ceiling is shown, which is formed with steel frames;

Fig. 2 is a perspective, exploded view of a face plate assembly of a blower for an air conditioner according to the invention with an assembled face plate, a wind inlet cover and a wind outlet cover;

Fig. 3 is a perspective, exploded view of a forehead according to the invention

plate device of a fan for an air conditioning system, in which the front plate is shown in a disassembled state;

Fig. 4 is a partially sectioned side view of a front plate device according to the invention of a fan for an air conditioning system in the ready-to-use state;

Fig. 5 is a schematic, partially sectioned side view of the inventive

Front plate device of a fan for an air conditioning system, in which one side

a wind inlet grille is removed from the front plate, for example for repair purposes;

·

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Fig. 6 is a schematic perspective view of the front plate device of a blower for an air conditioner according to the invention, in which the front plate is installed on a ceiling formed with a steel frame;
5

Fig. 7 is a fragmentary section through the front plate device of a fan for an air conditioning system according to the invention along the line A-A in Fig. 3, in which a filter net in the form of a wave is shown; and

Fig. 8 is a fragmentary section through a front plate device according to the invention

lation of a fan of an air conditioning system along the line A-A in Fig. 3, in which the filter network is shown in a crenellated manner.

A preferred embodiment of a face plate device of a blower for an air conditioner is shown in Figs. 2 and 3 and comprises a face plate 2, a drive device 3, a wind outlet cover 4 and a wind inlet cover 5 as interconnected main components.

The front plate 2 has a wind outlet 20 and a wind inlet 21 arranged side by side. The wind outlet 20 comprises a plurality of guide blades 200 arranged in the inner portion of the wind outlet 20 and provided with adjustable rotation direction, two through holes 201 each of which is arranged one in the wall on both sides of the wind outlet 20, a plurality of screw holes 203 arranged in two receiving surfaces 202 which are formed on the upper surfaces of the walls on both sides of the wind outlet 20. A motor mount 23 is arranged near a side wall of the wind outlet 20. A pivot body 22, which is designed as a U-shaped, rectangular plate and is pivotably mounted below the guide slats 200 of the wind outlet 20, has two pivot pins 220 which extend outwards on both side walls of the pivot body 22 and can cooperate accordingly with the two through holes 201 of the wind outlet 20, wherein one of the two pivot pins 220 has an insert hole 221 which is formed in the middle of the pivot pin 220.

The wind inlet 21 has a peripheral edge 210 which is arranged in an inner surface near the top of the wind inlet 21, and a plurality of hook grooves 211 and a plurality of engagement holes 212 which are arranged in two opposite inner side walls of the wind inlet 21 below the peripheral edge 210. The peripheral edge 210 is provided with a plurality of connecting holes 213.

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A filter net 24 has a plurality of screw holes 240 arranged on the peripheral edge thereof and corresponding to the plurality of connecting holes 213 of the wind inlet 21, so that the filter net 24 can be connected to the wind inlet 21 with the plurality of screw holes 240 aligned with the plurality of connecting holes 213 of the wind inlet 21 by screwing the aforementioned parts together by means of screws N.

A wind inlet grille 25 has a plurality of hook blocks 250 which are arranged outwardly in a side wall of the wind inlet grille 25 and correspond to the plurality of hook grooves 211 of the wind inlet 21. Furthermore, the wind inlet grille 25 has a plurality of elastic retaining bodies 251 which are arranged in the opposite side wall of the wind inlet grille 25 and correspond to the plurality of engagement holes 212 of the wind inlet 21 and can elastically engage with these engagement holes 212 of the wind inlet 21.

A plurality of indicator lights 26 are arranged at appropriate positions on the outer surface of the front plate 2 as shown in Fig. 6 to indicate a working state in which cold air is blown out.

The drive device 3, which is connected to the pivot body 22, comprises a motor 30, a drive body 32, a transmission rod 33 and an oscillating output member 34. The motor 30 is screwed onto the motor holder 23 for its arrangement and has an axis 31 which extends away from the surface of the motor 30 in an eccentric position and is connected to the drive body 32. The transmission rod 33 is provided with two insert holes 330, one insert hole being provided at each end of the rod: one of the holes is connected to an outer end of the drive body 32; the other hole is connected to one end of the oscillating output member 34, at the other end of which a projecting rod 340 protrudes, which can be inserted into the insert hole 221 of one of the two pivot pins 220 of the pivot body 22. By combining the components described above, a drive device 3 is created which is able to drive the swivel body 22 so that it can automatically swivel back and forth with oscillating movements.

The wind outlet cover 4, which covers the wind outlet 20 of the front plate 2, has two side walls which are provided with a plurality of screw holes 40 and are supported by the receiving surfaces 202 of the wind outlet 20, and at least one wind outlet opening 41 which is formed at a suitable location of the wind outlet cover 4. The wind outlet cover 4 can be connected to the wind outlet 20 by appropriately aligning the plurality of screw holes.

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ments 40 to the several screw holes 203 of the receiving surfaces 202 of the wind outlet 20 by screwing the aforementioned parts together by means of screws N. The wind outlet opening 41 has an engagement edge 410 which is formed circumferentially around the wind outlet opening 41 on the inside, so that a wind pipe 6 can be quickly and conveniently connected to the wind outlet opening 41.

The wind inlet cover 5 covers the wind inlet 21 of the front plate 2 and is supported by the peripheral edge 210 of the wind inlet 21. The wind inlet cover 5 has a plurality of screw holes 50 formed in the walls around the opening of the wind inlet cover 5 and in at least one wind inlet opening 51 formed at a suitable location in the wind inlet cover 5. The wind inlet cover 5 can be connected to the wind inlet 21 by aligning the plurality of screw holes 50 with the plurality of connecting holes 213 of the peripheral edge 210 of the wind inlet 21 and screwing the aforementioned parts by means of screws N from the bottom of the wind inlet 21. The wind inlet opening 51 has an inner engaging edge 510 formed circumferentially on the wind outlet opening 51 and serves to allow a wind pipe 6 to be quickly and conveniently connected to the wind outlet opening 51 in order to forcibly blow air in the room back to a blower. Alternatively, one of the wind inlet openings 51 can also be connected to a wind pipe 6 in order to blow dirty air in a room to the outside.

For assembly, referring to Figs. 2 to 4, firstly each wind pipe 6 is connected to the respective wind inlet opening 51 of the wind inlet cover 5 and then the filter net 24 and the wind inlet cover 5 are properly placed on the peripheral edge 210 of the wind inlet 21 of the front plate 2. Then, the plurality of screw holes 240 of the filter net 24 and the plurality of screw holes 50 of the wind inlet cover 5 are respectively aligned with the plurality of connecting holes 213 of the peripheral edge 210 of the wind inlet 21. Then, the above-mentioned parts are screwed together by means of screws N from the bottom of the wind inlet 21.

Second, the plurality of hook blocks 250 of the wind inlet grille 25 are connected or hooked to the plurality of hook grooves 211 of the wind inlet 21. The plurality of elastic retaining bodies 251 of the wind inlet grille 25 are firmly pressed into the plurality of engagement holes 212 of the wind inlet 21 by pressing the retaining bodies together and inserting them into the engagement holes, where they elastically snap back. For repair, it is very easy for a repairer to disassemble the wind inlet grille 25 from the wind inlet 21 by pressing the plurality of elastic retaining bodies 251 of the wind inlet grille

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25 can be pressed and compressed out of engagement with the plurality of engagement holes 212 of the wind inlet 21 such that the wind inlet grille 25 is in a state in which one side provided with the plurality of elastic retaining bodies 251 is lowered and the other side provided with the plurality of hook blocks 250 is still hooked to the plurality of hook grooves 211 of the wind inlet 21, as shown in Fig. 5, so that a repairman can conveniently check and repair components inside the face plate device 2.

Third, the two pivot pins 220 of the pivot body 22 are inserted into the through hole 201 of the wind outlet 20 for mounting the same, and the insertion hole 221 formed in one of the two pivot pins 220 is engaged with the projecting rod 340 of the oscillating output member 34. Then, the two insertion holes 330 of the transmission rod 33 are connected to the outer end of the oscillating output member 34 and the outer end of the drive body 32. Then, the other end of the drive body 32 is connected to the axis 31 of the motor 30.

By connecting the previously described components, the drive device 3 is assembled. This is then able to drive the swivel body 22, which is connected to the wind outlet 20, in such a way that it can automatically swivel back and forth while executing oscillating movements.

Fourth, each wind pipe 6 is connected to its respective wind outlet opening 41 of the wind outlet cover 4. Then, the plurality of screw holes 40 of the wind outlet cover 4 are respectively aligned with the plurality of screw holes 203 of the wind outlet 20. Then, the above-mentioned parts are screwed together by means of screws N.

Each wind pipe 6 has a pipe body formed with metallic steel rings which can be quickly engaged with the engaging edge 510 of the wind inlet opening 51 of the wind inlet cover 5 and with the engaging edge 410 of the wind outlet opening 41 of the wind outlet cover 4.

By combining the above-described components, the wind plate device 2 installed on a steel framed ceiling is capable of blowing out and sucking in wind in a front plate as shown in Fig. 6. Such a front plate device can be easily assembled and quickly disassembled through the wind outlet cover 4, the wind inlet cover 5 and the wind pipes 6.

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In addition, the components of the wind blowing system, such as the wind outlet 20 of the front plate 2 and the wind outlet cover 4, etc., are provided with a temperature insulating material P made of polyurethane (PU) on their wall surfaces and the contact surfaces to prevent frost formation on these surfaces when cold air inside the wind outlet 20 of the front plate 2 and the wind outlet cover 4 encounters heat.

The filter net 24 connected to the inner portion of the wind inlet 21 of the front plate 2 can be designed in a wave shape, as shown in Fig. 7. It is also possible to design the said filter net in a crenellated manner, as shown in Fig. 8, in order to increase the γ filter area for the sucked air.

The indicator lights 26 are arranged on the outside of the front plate 2 as shown in Fig. 6. They serve to indicate a working state when blowing out cold air.

The invention has the following advantages and effects as can be seen from the above description.

1. The front plate device according to the invention, in particular the front plate 2, is provided with simple components for quick assembly and disassembly.

2. The front plate device according to the invention, in particular the front plate 2, is able to blow out and suck in wind in or with only one front plate.

3. The engaging edge 410 of the wind outlet opening 41 of the wind outlet cover 4 and the engaging edge 510 of the wind inlet opening 51 of the wind inlet cover 5 are designed such that they can be engaged with different sizes of wind tubes 6 to achieve the optimal sealing effect in the connection of the wind tubes 6 with the wind outlet cover 4 and the wind inlet cover 5.

4. The filter net 24, which is designed in a wave shape or crenellated, serves to increase the filter surface for the sucked-in air in order to achieve the best filtering effect.

5. The entire structure of the device according to the invention is made of lightweight components so that they can be installed easily and quickly.

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A preferred embodiment of the invention has been described in more detail above. It is to be understood that numerous modifications may be made to the subject matter of the invention and that the appended claims cover all such modifications which fall within the scope of the invention.

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Claims (5)

1. A front plate assembly of a blower for an air conditioning system, comprising:
a front plate ( 2 ) with at least one wind outlet ( 20 ) and at least one wind inlet ( 21 ) which are arranged next to one another, wherein the at least one wind outlet ( 20 ) is provided with a pivoting body ( 22 ) which is connected to and controllable by a motor ( 30 ) of a drive device ( 3 ), so that the pivoting body ( 22 ) is able to carry out pivoting movements for adjusting the flow direction of the cool air, and wherein the at least one wind inlet ( 21 ) is provided with at least one wind inlet grille ( 25 ) and at least one detachable filter net ( 24 );
at least one wind outlet cover ( 4 ) which covers the at least one wind outlet ( 20 ) of the front plate ( 2 ) and is provided with at least one wind outlet opening ( 41 ) which is formed at a suitable location of the wind outlet cover ( 4 ) for the purpose of connecting a wind pipe ( 6 ). 2. A face plate device of a blower for an air conditioning system according to claim 1, characterized in that at least one wind inlet cover ( 5 ) is further provided which covers the at least one wind inlet ( 21 ) of the face plate ( 2 ) and is provided with at least one wind inlet opening ( 51 ) which is formed at a suitable location of the wind inlet cover ( 5 ) for connection to a wind pipe ( 6 ), preferably for forcibly blowing air in a room back to a blower. 3. Front plate device of a fan for an air conditioning system according to claim 2, characterized in that the at least one wind inlet grille ( 25 ) is detachably attached so that checking and repairing components inside the front plate (2) can be carried out conveniently and preferably a forced wind extraction is possible. 4. Front plate device of a fan for an air conditioning system according to claim 2 or 3, characterized in that the at least one wind inlet opening ( 51 ) is connectable to the at least one wind pipe ( 6 ), preferably in order to extract used or dirty air in a room to the outside. 5. Front plate device of a blower for an air conditioning system according to one of the preceding claims, characterized in that a plurality of indicator lights ( 26 ) are provided on an outer surface of the front plate ( 2 ), preferably to indicate the working state when blowing out cold air.