Dust-free workshop

Abstract

The utility model provides a dust-free workshop which comprises a dust-free workshop main body fixed on a ceiling so that the dust-free workshop main body is suspended on the ceiling; the fan is mounted on the ceiling and supplies air to the interior of the dust-free workshop main body; the rails are arranged on the bottom plate of the dust-free workshop main body and are used for enabling the trolleys to move on the rails; the airflow adjusting mechanism is arranged on the bottom plate of the dust-free workshop main body, is close to the track and is used for controlling air pressure inside and outside the dust-free workshop main body by switching on and off the airflow adjusting mechanism; and a differential pressure measurement unit that measures the differential pressure of the airflow inside and outside the dust-free workshop main body when the trolley moves to a predetermined position and stops, and that closes the airflow adjustment mechanism when the differential pressure measured by the differential pressure measurement unit is greater than a preset value.

Description

Technical Field

[0001] The utility model relates to the field of clean rooms, and particularly to a clean workshop capable of adjusting air flow. Background Art

[0002] As a highly precision industry, display panel manufacturing is affected by some subtle environmental or operation changes in the quality of its manufactured products. Therefore, in high-tech factories for display panel manufacturing, clean workshops are very important facilities. A clean workshop is a closed space that ensures the cleanliness of the air in the clean room, avoids the situation where dust is scattered everywhere due to too fast air flow velocity, and at the same time maintains a stable air pressure in the clean workshop. Therefore, the air flow in the clean workshop is an important factor affecting the cleaning performance.

[0003] In addition, increasing the wind speed can suppress the above-mentioned disturbing effects and maintain cleanliness, or reach the required cleanliness level through methods such as equipment wrapping. However, due to the increase in wind speed, methods such as equipment wrapping will affect the increase in operating costs. Therefore, when meeting the required cleanliness level, the most appropriate solution should be adopted to achieve economic effects. In other words, some auxiliary mechanisms and air flow control measures are needed to seek an economical and applicable air flow adjustment solution. Summary of the Utility Model

[0004] The utility model is completed in view of the above problems, and its purpose is to provide a clean workshop equipped with an air flow adjustment mechanism capable of automatically adjusting air flow at low cost.

[0005] A clean workshop according to an aspect of the utility model includes: a clean workshop main body fixed to the ceiling so that the clean workshop main body is suspended from the ceiling; a blower installed on the ceiling and blowing air into the interior of the clean workshop main body; a pair of tracks provided on the bottom plate of the clean workshop main body for a trolley to move on the tracks; an air flow adjustment mechanism provided on the bottom plate of the clean workshop main body and close to the tracks for controlling the air pressure inside and outside the clean workshop main body by turning on and off the air flow adjustment mechanism; and a differential pressure measurement unit for measuring the differential pressure of the air flow inside and outside the clean workshop main body when the trolley moves to a specified position and stops, and when the differential pressure measured by the differential pressure measurement unit is greater than a preset value, the air flow adjustment mechanism is closed.

[0006] Preferably, in the above aspect, the clean workshop includes a position detection unit for detecting whether the trolley moves to a specified position.

[0007] Preferably, in the above aspect, the air flow adjustment mechanism is provided with a solenoid valve, and the solenoid valve closes the air flow adjustment machine when the differential pressure measured by the differential pressure measurement unit is greater than a preset value.

[0008] Preferably, in the above manner, the air flow regulating mechanism is disposed at a position immediately behind the specified position along the traveling direction of the trolley.

[0009] Preferably, in the above manner, the air flow regulating mechanism includes: a frame provided with a plurality of bars at equal intervals parallel to one side of the frame; an electromagnetic induction bar disposed parallel to the other side of the frame on the bars; and a plurality of regulating plates, one side of each regulating plate being rotatably mounted on the bars, the solenoid valve being disposed on the electromagnetic induction bar and electrically connected to the differential pressure measuring unit.

[0010] Preferably, in the above manner, when the differential pressure measuring unit detects that the differential pressure reaches a preset value, the solenoid valve is opened to cause the electromagnetic induction bar to magnetically adsorb the plurality of regulating plates.

[0011] Preferably, in the above manner, the differential pressure measuring unit is disposed between the air flow regulating mechanism and the specified position.

[0012] Preferably, in the above manner, the length of the regulating plate is equal to the length of the bar, and the width of the regulating plate is equal to the interval between adjacent bars.

[0013] Preferably, in the above manner, the regulating plate is a thin plate formed of a magnetizable metal material.

[0014] Preferably, in the above manner, the number of the electromagnetic induction bars is at least one or more.

[0015] According to the present invention, a dust-free workshop with an air flow regulating mechanism capable of automatically regulating the air flow at low cost can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 (a) shows an effect diagram without an air flow regulating mechanism; (b) shows an effect diagram with an air flow regulating mechanism.

[0017] Figure 2 is a schematic diagram conceptually showing the dust-free workshop of the present invention.

[0018] Figure 3 is a schematic diagram of the air flow regulating mechanism of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] Referring to Figure 1 , Figure 1 Figure (a) of Figure 1 shows the effect diagram without an air flow regulating mechanism in a dust-free workshop; Figure 1 Figure (b) of Figure 1 shows the effect diagram with an air flow regulating mechanism in a dust-free workshop. Based on Figure 1 Figures (a) and (b) of

[0021] Referring to Figure 2 , a schematic diagram of the dust-free workshop 100 of the present invention is conceptually shown. This dust-free workshop 100 is a dust-free workshop for manufacturing display panels. The dust-free workshop 100 includes a dust-free workshop main body 10, a pair of tracks 5, an air flow regulating mechanism 7, and a differential pressure measuring unit 9. The dust-free workshop main body 10 is installed on the ceiling 3, so that the dust-free workshop main body 10 is suspended from the ceiling 3. A blower is installed on the top surface of the dust-free workshop main body 10 for sending air into the dust-free workshop main body 10, and a part of the gas is sent to the outside of the dust-free workshop main body 10 through the dust-free workshop main body 10. Figure 2 The black arrows in

[0022] show the flow direction of the air flow blown by the blower into the dust-free workshop main body 10. An exhaust hole (not shown) is formed through the bottom surface of the dust-free workshop main body 10, and the exhaust hole discharges the gas inside the dust-free workshop main body 10 to the outside, such as the personnel walkway below. A pair of tracks 5 are provided on the bottom surface of the dust-free workshop main body 10 and are located on both sides of the exhaust hole. The trolley 1 is provided to move on the pair of tracks 5. In this embodiment, the trolley 1 is loaded with workpieces to be processed, for example.The air flow regulating mechanism 7 is arranged between a pair of tracks 5 and installed on the exhaust hole. The position detection unit is installed on the bottom plate of the dust-free workshop main body 10 to detect whether the trolley 1 reaches a specified position. The differential pressure measurement unit 9 is installed on the bottom plate of the dust-free workshop main body 10 and at a position close to the exhaust hole. When the position detection unit detects that the trolley 1 moves to the specified position, the trolley 1 is stopped at the specified position. At this time, the differential pressure measurement unit 9 measures the differential pressure inside and outside the dust-free workshop main body 10. An electromagnetic valve (not shown) is provided on the air flow regulating mechanism 7, and the electromagnetic valve closes the air flow regulating mechanism 7 when the differential pressure measured by the differential pressure measurement unit 9 is greater than a preset value. Among them, the air flow regulating mechanism 7 is arranged at a position immediately behind the specified position along the traveling direction of the trolley 1.

[0023] Further, with reference to Figure 3 , the air flow regulating mechanism 7 will be described in more detail. The air flow regulating mechanism 7 includes a frame 7, an electromagnetic induction bar 73, and a plurality of adjusting plates 75. The frame 7 is set in a rectangular shape and is arranged parallel to one side (for example, the short side) of the frame 7 and close to the exhaust hole. A plurality of bars 711 are arranged at the same interval, so that air flow can pass between the inside and outside of the dust-free workshop main body 10. The electromagnetic induction bar 73 is arranged on all the bars 711 in a manner parallel to the other side of the frame 7. One side of each of the plurality of adjusting plates 75 is rotatably installed on the bars 711 respectively, so that the plurality of bars 711 together form a louver structure. The electromagnetic valve is arranged on the electromagnetic induction bar 73 and is electrically connected to the differential pressure measurement unit 9.

[0024] The differential pressure measurement unit 9 is arranged between the air flow regulating mechanism 7 and the specified position. The length of the adjusting plate 75 is equal to the length of the bar 711, and the width of the adjusting plate 75 is equal to the interval between adjacent bars 711. The adjusting plate 75 is formed of a metal material that can be magnetically attracted. The number of the electromagnetic induction bars 73 is at least one or more. In this embodiment, the number of the electromagnetic induction bars 73 is two.

[0025] At the time point when the position detection unit detects that the trolley 1 moves to the specified position and stops, the differential pressure measurement unit 9 detects whether the differential pressure inside and outside it reaches the preset value. If the differential pressure measurement unit 9 detects that the differential pressure inside and outside it has reached the preset value, a signal is sent to the electromagnetic valve. After receiving the signal, the electromagnetic valve is energized to make the electromagnetic induction bar generate a magnetic force, thereby adsorbing the plurality of adjusting plates to make the air flow regulating mechanism 7 in a closed state. Among them, the preset value can be preset based on different usage scenarios.

[0026] Thus, in the present utility model, when the trolley 1 reaches the specified position and stops, the differential pressure measuring unit 9 automatically measures the differential pressure inside and outside the main body 10 of the dust-free workshop, and determines whether the preset value for closing the air regulating plate 75 is reached. Only when the differential pressure reaches the preset value, a signal is sent to control the closing of the air flow regulating mechanism 7. Thus, within the range allowed by the negative pressure, unnecessary closing of the regulating plate 75 can be reduced.

[0027] In addition, if only the differential pressure is relied on to control the closing of the regulating plate, the regulating plate needs to be made of an extremely light material. However, if the differential pressure is too large, it may cause the regulating plate to deform and thus fail to perform its due function. Therefore, in the present utility model, by setting the regulating plate 75 as a thin plate formed of a metal material that can be magnetically attracted, and using the electro-magnetic effect to generate a magnetic force to attract the regulating plate, the problem of deformation of the regulating plate caused by too large differential pressure can be maximally suppressed. Thus, in the present utility model, by adding an air flow regulating mechanism with such a structure in the dust-free workshop, efficient automatic air flow regulation can be achieved at low cost.

[0028] All aspects of the embodiments disclosed herein are illustrative and should not be construed in a limiting sense. Therefore, the technical scope of the present utility model is not limited only by the above embodiments, but is defined based on the description in the claims. In addition, all changes within the meaning and scope equivalent to the claims are included.

Claims

1. A dust-free workshop, characterized in that, Comprising: A main body of a dust-free workshop, which is fixed to the ceiling such that the main body of the dust-free workshop is suspended from the ceiling; A blower, which is installed on the ceiling and blows air into the interior of the main body of the dust-free workshop; A pair of tracks, which are provided on the bottom plate of the main body of the dust-free workshop for a trolley to move on the tracks; An air flow regulating mechanism, which is provided on the bottom plate of the main body of the dust-free workshop and near the tracks, and is used to control the air pressure inside and outside the main body of the dust-free workshop by turning on and off the air flow regulating mechanism; And A differential pressure measuring unit, which measures the differential pressure of the air flow inside and outside the main body of the dust-free workshop when the trolley moves to a specified position and stops, When the differential pressure measured by the differential pressure measuring unit is greater than a preset value, the air flow regulating mechanism is closed.

2. The dust-free workshop according to claim 1, wherein The dust-free workshop includes a position detecting unit, and the position detecting unit detects whether the trolley moves to a specified position.

3. The dust-free workshop according to claim 1, wherein The air flow regulating mechanism is provided with a solenoid valve, and the solenoid valve closes the air flow regulating machine when the differential pressure measured by the differential pressure measuring unit is greater than a preset value.

4. The dust-free workshop according to claim 1, wherein The air flow regulating mechanism is arranged along the traveling direction of the trolley at a position immediately behind the specified position.

5. The dust-free workshop according to claim 3, wherein The air flow regulating mechanism includes: A frame, which is provided with a plurality of bars at equal intervals with one side parallel to the frame, An electromagnetic induction bar, which is arranged on the bars in a manner parallel to the other side of the frame; and A plurality of adjusting plates, with one side of each adjusting plate rotatably mounted on the bars, The solenoid valve is arranged on the electromagnetic induction bar and is electrically connected to the differential pressure measuring unit.

6. The dust-free workshop according to claim 5, wherein When the differential pressure measuring unit detects that the differential pressure reaches the preset value, the solenoid valve is opened to make the electromagnetic induction bar magnetically adsorb the plurality of adjusting plates.

7. The dust-free workshop according to claim 1, wherein The differential pressure measuring unit is arranged between the air flow regulating mechanism and the specified position.

8. The dust-free workshop according to claim 5, wherein The length of the adjusting plate is equal to the length of the bar, and the width of the adjusting plate is equal to the interval between adjacent bars.

9. The dust-free workshop according to claim 5, wherein The adjusting plate is a thin plate formed of a metal material that can be magnetically attracted.

10. The dust-free workshop according to claim 5, wherein The number of the electromagnetic induction bars is at least one or more.

Images