Telescopic filtering structure of air-cooled cabinet and air-cooled cabinet device

Abstract

The telescopic filtering structure is arranged in a cabinet body of the air-cooled cabinet, a first space and a second space are formed in the cabinet body, a front air opening and a rear air opening are formed in the positions, corresponding to the first space and the second space, of the two sides of the cabinet body correspondingly, and an air outlet is formed in the top of the cabinet body; the heat exchanger is arranged in the first space, a water pan is arranged below the heat exchanger, a first gap is formed between the water pan and the cabinet body, and the first gap communicates with the first space and the second space; a filtering assembly is arranged on the side, away from the air outlet, of the heat exchanger and can be unfolded in the first space and / or the second space, so that air enters the cabinet body from the front air opening and / or the rear air opening, sequentially passes through the filtering assembly and the heat exchanger and then is exhausted from the air outlet; by arranging the filtering assembly, the filtering assembly can be unfolded in the first space and / or the second space according to the air return conditions of the front air opening and the rear air opening, then return air filtering in different scenes is met, and universal applicability is achieved.

Description

Technical Field

[0001] The present application relates to the field of air-cooled cabinets, and in particular to a retractable filter structure and an air-cooled cabinet device for an air-cooled cabinet. Background Art

[0002] Air-cooled cabinet air conditioners are a common temperature control solution for large spaces such as factories. They are widely used in scenarios such as production line cooling, equipment heat dissipation, and raw material storage. Currently, most usage scenarios use air-cooled cabinets with front air return. The front of this type of air-cooled cabinet unit is located in the air-conditioning area, and the air outlet and return air are on the same side. However, as usage scenarios change, the demand for rear return air, simultaneous front and rear return air, and front return air and rear fresh air is increasing in some special usage scenarios. Currently, there are few models on the market that can simultaneously meet the needs of separate front and rear return air, as well as front return air and rear fresh air. The main problem lies in how to design a filter structure for the return air position so that the filter structure can filter the return air from both the front and rear sides. Summary of the Invention

[0003] The present application provides a retractable filter structure of an air-cooled cabinet and an air-cooled cabinet device to solve the problems existing in the prior art.

[0004] In a first aspect, the present application provides a retractable filter structure for an air-cooled cabinet, which is arranged in a cabinet body of the air-cooled cabinet, wherein the cabinet body has a first space and a second space, and a front air outlet and a rear air outlet are respectively opened on both sides of the cabinet body corresponding to the first space and the second space, and an air outlet is opened on the top, wherein the filter structure includes:

[0005] a heat exchanger, the heat exchanger being disposed in the first space;

[0006] a water receiving pan, the water receiving pan being provided below the heat exchanger and being used to receive condensed water generated on the heat exchanger, a first gap being defined between the water receiving pan and the cabinet, the first gap being connected to the first space and the second space;

[0007] A filter assembly is provided on a side of the heat exchanger away from the air outlet. The filter assembly can be deployed in the first space and / or the second space so that the gas enters the cabinet from the front air outlet and / or the rear air outlet, passes through the filter assembly and the heat exchanger in sequence, and is then discharged from the air outlet.

[0008] According to the technical solutions provided in certain embodiments of the present application, the filter assembly includes:

[0009] a first reel, the first reel being rotatably connected to a position on the cabinet body near the top of the front air vent;

[0010] a first guide roller, the first guide roller being rotatably connected to the cabinet body at a position close to the bottom of the front air outlet;

[0011] a first motor, the first motor being fixed to a side of the water receiving tray close to the second space, and a connecting rope being fixed to a driving end of the first motor;

[0012] The first filter screen has one end fixed on the first reel, and the free end of the first filter screen passes through the first guide roller and is fixed to the connecting rope through a hook.

[0013] According to the technical solutions provided in certain embodiments of the present application, the filter assembly includes:

[0014] a first reel, the first reel being rotatably connected to a position on the cabinet body near the top of the front air vent;

[0015] a first guide roller, the first guide roller being rotatably connected to the cabinet body at a position close to the bottom of the front air outlet;

[0016] a second guide roller, the second guide roller being rotatably connected to a side of the water receiving tray close to the second space;

[0017] a third guide roller, the third guide roller being rotatably connected to the bottom of the cabinet;

[0018] A first motor, wherein the first motor is fixed to the bottom of the cabinet, and a connecting rope is fixed to the driving end of the first motor;

[0019] The first filter screen has one end fixed on the first reel, and the free end of the first filter screen passes through the first guide roller, the second guide roller and the third guide roller in sequence, and is fixed to the connecting rope through a hook.

[0020] According to the technical solution provided in certain embodiments of the present application, a first detection member is provided on the cabinet body near the first guide roller, a second detection member is provided on the water receiving tray near the second guide roller, and a third detection member is provided on the cabinet body near the third guide roller. The first detection member, the second detection member and the third detection member are communicatively connected with a controller, and the controller is used to control the start and stop of the first motor.

[0021] According to the technical solution provided in certain embodiments of the present application, when the first motor drives the free end of the first filter to move to the first guide roller, the first detection member generates a first detection signal and sends it to the controller. The controller controls the first motor to stop according to the first detection signal, and the gas enters the cabinet from the front air inlet, is filtered by the first filter, and is then discharged from the air outlet through the heat exchanger.

[0022] According to the technical solution provided in certain embodiments of the present application, when the first motor drives the free end of the first filter to pass through the first guide roller and move to the second guide roller, the second detection member generates a second detection signal and sends it to the controller. The controller controls the first motor to stop according to the second detection signal, and the gas enters the cabinet from the front air inlet and the rear air inlet, is filtered by the first filter, and is then discharged from the air outlet through the heat exchanger.

[0023] According to the technical solution provided in certain embodiments of the present application, when the first motor drives the free end of the first filter to pass through the first guide roller and the second guide roller in sequence and move to the third guide roller, the third detection component generates a third detection signal and sends it to the controller. The controller controls the first motor to stop according to the third detection signal, and the gas enters the cabinet from the front air inlet and is filtered by the first filter, and then is discharged from the air outlet through the heat exchanger; the gas enters the cabinet from the rear air inlet and is filtered twice by the first filter, and then is discharged from the air outlet through the heat exchanger.

[0024] According to the technical solutions provided in certain embodiments of the present application, the filter assembly includes:

[0025] a first reel, the first reel being rotatably connected to a position on the cabinet body near the top of the front air vent;

[0026] a first motor, the first motor being fixed on the cabinet body near the bottom of the front air outlet, and a connecting rope being fixed to a driving end of the first motor;

[0027] a first filter screen, one end of which is fixed to the first reel, and a free end of which extends vertically and is fixed to the connecting rope via a hook;

[0028] a second reel rotatably connected to a side of the water receiving tray close to the second space;

[0029] a first guide roller, the first guide roller being rotatably connected to the bottom of the cabinet;

[0030] a second motor, the second motor being fixed to the bottom of the cabinet and located on a side of the first guide roller away from the rear air outlet, and a connecting rope being fixed to a driving end of the second motor;

[0031] A second filter screen, one end of the second filter screen is fixed on the second reel, and a free end of the second filter screen extends in a vertical direction and passes through the first guide roller, and is fixed to the connecting rope through a hook.

[0032] According to the technical solutions provided in some embodiments of the present application, the filter assembly includes: a first reel and a first filter screen, wherein one end of the first filter screen is fixed to the first reel;

[0033] The first scroll is rotatably connected to a side of the water receiving tray close to the second space.

[0034] The free end of the first filter is fixed to the top of the front air outlet through a hook;

[0035] Or,

[0036] The first reel is rotatably connected to the top of the front air outlet,

[0037] The free end of the first filter screen is fixed to a side of the water receiving tray close to the second space through a hook.

[0038] In a second aspect, the present application provides an air-cooled cabinet device, comprising a retractable filter structure for an air-cooled cabinet as described above.

[0039] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0040] The filter structure provided in the embodiment of the present application is arranged in the cabinet body of the air-cooling cabinet, and the cabinet body has a first space and a second space, and the cabinet body has a front air outlet and a rear air outlet respectively corresponding to the first space and the second space on both sides of the cabinet body, and an air outlet is opened on the top, and the filter structure includes a heat exchanger, the heat exchanger is arranged in the first space, and a water receiving pan is provided under the heat exchanger for receiving condensed water generated on the heat exchanger, and a first gap is provided between the water receiving pan and the cabinet body, and the first gap connects the first space and the second space; a filter component is provided on the side of the heat exchanger away from the air outlet, and the filter component can be in the first space and / or the second space, so that the gas enters the cabinet from the front air inlet and / or the rear air inlet, passes through the filter assembly and the heat exchanger in sequence, and is then discharged from the air outlet; by arranging the filter assembly on the side of the heat exchanger away from the air outlet, the filter assembly can be arranged according to the return air conditions of the front air inlet and the rear air inlet. When the front air inlet returns air or the front and rear air inlets return air at the same time, the filter assembly can be unfolded in the first space and the second space. When the rear air inlet returns air, the filter assembly can be unfolded in the second space, thereby meeting the return air filtration needs in different usage scenarios, with high flexibility and greater applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0044] Figure 1 This is a schematic structural diagram of a retractable filter structure for an air-cooled cabinet provided in Example 1 of the present application;

[0045] Figure 2 A cross-sectional view of a retractable filter structure for an air-cooled cabinet provided in Example 1 of the present application;

[0046] Figure 3 Another cross-sectional view of a retractable filter structure for an air-cooled cabinet provided in Example 1 of the present application;

[0047] Figure 4 A cross-sectional view of a detection member provided in a retractable filter structure of an air cooling cabinet provided in Example 1 of the present application;

[0048] Figure 5 This is another cross-sectional view of a retractable filter structure for an air-cooled cabinet provided in Example 1 of the present application;

[0049] Figure 6 A cross-sectional view of a manually arranged retractable filter structure of an air-cooled cabinet provided in Example 1 of the present application;

[0050] Figure 7 This is a structural diagram of a retractable filter structure of an air-cooled cabinet provided in Example 1 of the present application when manually arranged;

[0051] Figure 8 This is a front view of an air cooling cabinet device provided in Example 2 of the present application;

[0052] Figure 9 This is a rear view of an air cooling cabinet device provided in Example 2 of the present application;

[0053] Figure 10 This is a cross-sectional view of an air cooling cabinet device provided in Example 2 of the present application.

[0054] Description of reference numerals:

[0055] 1. Cabinet; 2. Filter assembly; 3. Heat exchanger; 4. Drain tray; 11. Front air outlet; 12. Rear air outlet; 13. Air outlet; 21. First reel; 22. First guide roller; 23. First motor; 24. First filter; 25. Second guide roller; 26. Third guide roller; 27. Second reel; 28. Second motor; 29. Second filter; 101. First space; 102. Second space; 201. First detection member; 202. Second detection member; 203. Third detection member; 204. Hook. DETAILED DESCRIPTION

[0056] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0057] The disclosure below provides many different embodiments or examples for implementing different configurations of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0058] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0059] As mentioned in the background technology, in order to solve the technical problem of filtering the front and rear return air of the air cooling cabinet in the existing technology, the present application provides a retractable filtering structure and an air cooling cabinet device for the air cooling cabinet, which can realize the arrangement of the filter net according to the front and rear return air conditions.

[0060] Example 1

[0061] This embodiment provides a retractable filter structure for an air-cooled cabinet, which is arranged in a cabinet body 1 of the air-cooled cabinet. The cabinet body 1 has a first space 101 and a second space 102. A front air vent 11 and a rear air vent 12 are respectively provided on both sides of the cabinet body 1 corresponding to the first space 101 and the second space 102, and an air outlet 13 is provided on the top. The filter structure includes:

[0062] Heat exchanger 3, heat exchanger 3 is arranged in the first space 101;

[0063] The water receiving pan 4 is provided below the heat exchanger 3 and is used to receive condensed water generated on the heat exchanger 3. A first gap is defined between the water receiving pan 4 and the cabinet 1, and the first gap connects the first space 101 and the second space 102;

[0064] The filter assembly 2 is arranged on the side of the heat exchanger 3 away from the air outlet 13. The filter assembly 2 can be deployed in the first space 101 and / or the second space 102 so that the gas enters the cabinet 1 from the front air inlet 11 and / or the rear air inlet 12, and passes through the filter assembly 2 and the heat exchanger 3 in sequence, and then is discharged from the air outlet 13.

[0065] like Figure 1 and Figure 6As shown, the cabinet 1 is approximately a rectangular structure, and the first space 101 and the second space 102 are both internal spaces of the cabinet 1. The first space 101 and the second space 102 are distributed in the vertical direction. The front air outlet 11 is opened corresponding to the first space 101, and a front grille is provided at the front air outlet 11. The rear air outlet 12 is opened corresponding to the second space 102, and a rear grille is also provided at the rear air outlet 12. The air outlet 13 is located at the top of the cabinet 1, and the heat exchanger 3 is tilted in the first space 101, and it has an angle with the horizontal direction. The water receiving tray 4 is provided below the heat exchanger 3 and extends in the horizontal direction. The projection of the heat exchanger 3 in the vertical direction corresponds to the projection of the water receiving tray 4 in the vertical direction, so that the condensed water generated on the heat exchanger 3 can be received by the water receiving tray 4 after falling. The water receiving tray 4 divides the interior of the cabinet 1 into the above-mentioned first space 101 and the second space 102, the first space 101 and the second space 102 can be connected through the first gap between the water receiving tray 4 and the cabinet 1; the filter assembly 2 is arranged on the side of the heat exchanger 3 away from the air outlet 13, and the filter assembly 2 includes at least a first reel 21 and a first filter screen 24, the first filter screen 24 is rolled up on the first reel 21, and when an external force pulls the free end of the first filter screen 24, the first filter screen 24 can be extended and unfolded from the first reel 21. After the external force is removed, the first reel 21 rotates to make the first filter screen 24 rolled up onto the first reel 21. At the same time, a guide assembly can also be set in the cabinet 1 to change the extension direction of the free end of the first filter screen 24 under external force, so that the first filter screen 24 can filter the return air under the working conditions of return air from the front air outlet 11 and / or return air from the rear air outlet 12.

[0066] By setting a filter component 2 on the side of the heat exchanger 3 away from the air outlet 13, the filter component 2 can be arranged according to the return air conditions of the front air outlet 11 and the rear air outlet 12. When the front air outlet 11 returns air or the front and rear air outlets 12 return air at the same time, the filter component 2 can be expanded in the first space 101 and the second space 102. When the rear air outlet 12 returns air, the filter component 2 can be expanded in the second space 102, thereby meeting the return air filtration in different usage scenarios, with high flexibility and greater applicability.

[0067] In a preferred embodiment, the filter assembly 2 comprises:

[0068] A first reel 21 is rotatably connected to the cabinet 1 near the top of the front air outlet 11;

[0069] A first guide roller 22 is rotatably connected to the cabinet 1 near the bottom of the front air outlet 11;

[0070] A first motor 23 is fixed to the water receiving tray 4 on one side close to the second space 102 , and a connecting rope is fixed to the driving end of the first motor 23 ;

[0071] The first filter screen 24 has one end fixed on the first reel 21 , and the free end of the first filter screen 24 passes through the first guide roller 22 and is fixed to the connecting rope through the hook 204 .

[0072] like Figure 2 As shown, the first reel 21 and the first guide roller 22 are respectively connected to the cabinet body 1 on both sides of the front air outlet 11 in the vertical direction, and the first motor 23 is fixed on the side of the water receiving tray 4 close to the second space 102 to avoid affecting the water receiving tray 4 to receive condensed water. A connecting rope is fixed to the driving end of the first motor 23, and the connecting rope can be wound or unfolded under the drive of the first motor 23. There are two first motors 23 and two hooks 204. The two first motors 23 are connected along the Figure 2 The two hooks 204 are respectively fixed on both sides of the width direction of the free end of the first filter screen 24 , and the two connecting ropes are respectively fixedly connected to the two hooks 204 .

[0073] When the air cooling cabinet only needs the front air outlet 11 for return air during operation, the first motor 23 is started, and the first motor 23 drives the connecting rope to reel in, driving the free end of the first filter 24 to extend in the vertical direction. When the free end of the first filter 24 passes through the bottom of the front air outlet 11 in the vertical direction and reaches the first guide roller 22, the first motor 23 stops, and the part of the first filter 24 unfolded from the first reel 21 can filter the return air entering the first space 101 from the front air outlet 11.

[0074] When the air cooling cabinet needs to return air from the front air outlet 11 and the rear air outlet 12 during operation, the first motor 23 is started, and the first motor 23 drives the connecting rope to reel in, driving the free end of the first filter screen 24 to extend in the vertical direction. When the free end of the first filter screen 24 passes through the bottom of the front air outlet 11 in the vertical direction and reaches the first guide roller 22, the first guide roller 22 guides the free end of the first filter screen 24, so that the free end of the first filter screen 24 moves horizontally toward the side close to the rear air outlet 12. When the free end of the first filter screen 24 passes through the free end of the water receiving tray 4 in the horizontal direction and reaches the position of the first motor 23, the first motor 2 3 stops, at this time, the part of the first filter 24 located between the first scroll 21 and the first guide roller 22 can filter the return air entering the first space 101 from the front air outlet 11, and the part of the first filter 24 located between the first guide roller 22 and the first motor 23 can cover the first gap, and can filter the return air that enters the second space 102 from the rear air outlet 12 and then enters the first space 101, thereby filtering the return air from the front air outlet 11 and the rear air outlet 12. The filtered gas entering the interior of the cabinet 1 from the front air outlet 11 and the rear air outlet 12 is discharged from the air outlet 13 after heat exchange.

[0075] Furthermore, since the portion of the first filter screen 24 corresponding to the water receiving tray 4 in the vertical direction is located below the water receiving tray 4 when the first filter screen 24 is unfolded, the first filter screen 24 can be prevented from being affected by the condensed water generated on the heat exchanger 3 .

[0076] In a preferred embodiment, the filter assembly 2 comprises:

[0077] A first reel 21 is rotatably connected to the cabinet 1 near the top of the front air outlet 11;

[0078] A first guide roller 22 is rotatably connected to the cabinet 1 near the bottom of the front air outlet 11;

[0079] A second guide roller 25 is rotatably connected to a side of the water receiving tray 4 close to the second space 102;

[0080] A third guide roller 26 is rotatably connected to the bottom of the cabinet 1;

[0081] The first motor 23 is fixed to the bottom of the cabinet 1 and is located on the side of the third guide roller 26 away from the rear air outlet 12. A connecting rope is fixed to the driving end of the first motor 23;

[0082] The first filter screen 24 has one end fixed on the first reel 21 , and the free end of the first filter screen 24 passes through the first guide roller 22 , the second guide roller 25 and the third guide roller 26 in sequence, and is then fixed to the connecting rope through the hook 204 .

[0083] like Figure 3As shown, the first reel 21 and the first guide roller 22 are respectively connected to the cabinet 1 on both sides of the vertical direction of the front air outlet 11, the second guide roller 25 is connected to the side of the water tray 4 close to the second space 102, and the third guide roller 26 is connected to the bottom of the cabinet 1. The first motor 23 is fixed to the side of the third guide roller 26 away from the rear air outlet 12. The first motor 23 is started, and the first motor 23 drives the connecting rope to reel in, driving the free end of the first filter 24 to extend in the vertical direction. When the free end of the first filter 24 extends to the first guide roller 22, the part of the first filter 24 unfolded from the first reel 21 can enter the first space from the front air outlet 11. 101, and then under the guidance of the first guide roller 22, the first motor 23 drives the free end of the first filter screen 24 to move horizontally toward the side close to the rear air outlet 12. When the free end of the first filter screen 24 reaches the position of the second guide roller 25, the first filter screen 24 covers the first gap. The part of the first filter screen 24 located between the first guide roller 22 and the second guide roller 25 can filter the return air that enters the second space 102 from the rear air outlet 12 and then enters the first space 101, thereby filtering the return air of the front air outlet 11 and the rear air outlet 12. Then, under the guidance of the second guide roller 25, the free end of the first filter screen 24 is moved horizontally toward the side close to the rear air outlet 12. When the free end of the first filter screen 24 reaches the position of the second guide roller 25, the first filter screen 24 is covered at the first gap. The part of the first filter screen 24 that is unfolded between the first guide roller 22 and the second guide roller 25 can filter the return air that enters the second space 102 from the rear air outlet 12 and then enters the first space 101, thereby filtering the return air of the front air outlet 11 and the rear air outlet 12. The end moves toward the side close to the third guide roller 26. When the free end of the first filter screen 24 reaches the position of the third guide roller 26, it moves to a position close to the driving end of the first motor 23 under the guidance of the third guide roller 26. At this time, the first filter screen 24 covers the second space 102. The part of the first filter screen 24 located between the second guide roller 25 and the third guide roller 26 can filter the return air entering the second space 102 from the rear air outlet 12, and then the part of the first filter screen 24 located between the first guide roller 22 and the third guide roller 26 can realize secondary filtration of the return air from the rear air outlet 12. Since the opening position of the rear air outlet 12 on the cabinet body 1 is close to the ground, When returning air, more sand or impurities will be inhaled than the front air outlet 11. Through secondary filtration, the sand and impurities in the return air can be effectively filtered out, thereby enhancing the filtering effect. The first motor 23 is arranged on the side of the third guide roller 26 away from the rear air outlet 12. The return air from the rear air outlet 12 reaches the position of the first motor 23 after being filtered once by the first filter 24, which can effectively protect the first motor 23 from the influence of sand and impurities in the return air and increase the service life of the first motor 23. At the same time, since the part of the first filter 24 corresponding to the water receiving tray 4 in the vertical direction when it is unfolded is located below the water receiving tray 4, the first filter 24 can be prevented from being affected by the condensed water generated on the heat exchanger 3.

[0084] In a preferred embodiment, a first detection member 201 is provided on the cabinet body 1 near the first guide roller 22, a second detection member 202 is provided on the water receiving tray 4 near the second guide roller 25, and a third detection member 203 is provided on the cabinet body 1 near the third guide roller 26. The first detection member 201, the second detection member 202 and the third detection member 203 are communicatively connected to a controller, and the controller is used to control the start and stop of the first motor 23.

[0085] like Figure 4 As shown, the first detection member 201 is provided on the cabinet 1, between the first guide roller 22 and the bottom of the front air outlet 11, and the first detection member 201 is used to detect whether the free end of the first filter 24 moves through the bottom of the front air outlet 11. The second detection member 202 is provided on the side of the water receiving tray 4 close to the second space 102, between the second guide roller 25 and the free end of the water receiving tray 4, and the second detection member 202 is used to detect whether the free end of the first filter 24 moves through the free end of the water receiving tray 4. The third detection member 203 is provided at the bottom of the cabinet 1, between the third guide roller 26 and the first motor 23, and the third detection member 204 is provided at the bottom of the cabinet 1. The detection member 203 is used to detect whether the free end of the first filter 24 moves through the third guide roller 26; the first detection member 201, the second detection member 202 and the third detection member 203 can adopt the photoelectric detection switch in the prior art in this embodiment, and other detection elements with similar detection functions can also be adopted in other embodiments. No special limitation is made here. The first detection member 201, the second detection member 202 and the third detection member 203 are jointly connected to the controller for communication, and can send detection signals to the controller respectively, and then the controller can control the start and stop of the first motor 23 through the detection signal.

[0086] In a preferred embodiment, when the first motor 23 drives the free end of the first filter 24 to move to the first guide roller 22, the first detection member 201 generates a first detection signal and sends it to the controller. The controller controls the first motor 23 to stop according to the first detection signal, and the gas enters the cabinet 1 from the front air inlet 11, is filtered by the first filter 24, and is then discharged from the air outlet 13 through the heat exchanger 3.

[0087] like Figure 4As shown, when the air cooling cabinet only needs the front air outlet 11 for return air during operation, the controller controls the first motor 23 to start, and the driving end of the first motor 23 drives the connecting rope to reel in, thereby driving the free end of the first filter 24, so that the free end of the first filter 24 moves from the first reel 21 along the vertical direction to the side close to the first guide roller 22. When the free end of the first filter 24 passes through the bottom of the front air outlet 11 in the vertical direction and reaches the position of the first detection component 201, the first detection component 201 detects the first filter 24 and generates a first detection signal to the controller. The controller controls the first motor 23 to stop according to the first detection signal. At this time, the part of the first filter 24 unfolded from the first reel 21 can filter the return air entering the first space 101 from the front air outlet 11, and the filtered gas is discharged from the air outlet 13 after heat exchange in the heat exchanger 3.

[0088] In a preferred embodiment, when the first motor 23 drives the free end of the first filter 24 to pass through the first guide roller 22 and move to the second guide roller 25, the second detection member 202 generates a second detection signal and sends it to the controller. The controller controls the first motor 23 to stop according to the second detection signal, and the gas enters the cabinet 1 from the front air inlet 11 and the rear air inlet 12, is filtered by the first filter 24, and is then discharged from the air outlet 13 through the heat exchanger 3.

[0089] like Figure 4 As shown, when the air-cooling cabinet needs to return air from the front air outlet 11 and the rear air outlet 12 during operation, and the environment around the rear air outlet 12 is the same as that around the front air outlet 11, the controller controls the first motor 23 to start, and the driving end of the first motor 23 drives the connecting rope to reel in, thereby driving the free end of the first filter screen 24, so that the free end of the first filter screen 24 moves from the first reel 21 along the vertical direction to the side close to the first guide roller 22. When the free end of the first filter screen 24 passes the bottom of the front air outlet 11 in the vertical direction and reaches the first guide roller 22, the first guide roller 22 guides the free end of the first filter screen 24, so that the free end of the first filter screen 24 moves horizontally to the side close to the rear air outlet 12. When the free end of the first filter screen 24 passes the water receiving tray in the horizontal direction 4 reaches the position of the second detection member 202, the second detection member 202 detects the first filter 24 and generates a second detection signal and sends it to the controller. The controller controls the first motor 23 to stop according to the second detection signal. At this time, the part of the first filter 24 located between the first reel 21 and the first guide roller 22 can filter the return air entering the first space 101 from the front air outlet 11, and the part of the first filter 24 located between the first guide roller 22 and the second guide roller 25 covers the first gap, and can filter the return air that enters the second space 102 from the rear air outlet 12 and then enters the first space 101. The filtered gas entering the cabinet 1 from the front air outlet 11 and the rear air outlet 12 is discharged from the air outlet 13 after heat exchange by the heat exchanger 3.

[0090] In a preferred embodiment, when the first motor 23 drives the free end of the first filter 24 to pass through the first guide roller 22 and the second guide roller 25 in sequence and move to the third guide roller 26, the third detection member 203 generates a third detection signal and sends it to the controller. The controller controls the first motor 23 to stop according to the third detection signal, and the gas enters the cabinet 1 from the front air inlet 11, is filtered by the first filter 24, and is then discharged from the air outlet 13 through the heat exchanger 3; the gas enters the cabinet 1 from the rear air inlet 12, is filtered twice by the first filter 24, and is then discharged from the air outlet 13 through the heat exchanger 3.

[0091] like Figure 4 As shown, when the air-cooling cabinet needs to return air from the front air outlet 11 and the rear air outlet 12 during operation, and the environment around the rear air outlet 12 is relatively harsh, the controller controls the first motor 23 to start, and the driving end of the first motor 23 drives the connecting rope to reel in, thereby driving the free end of the first filter screen 24, so that the free end of the first filter screen 24 moves from the first reel 21 along the vertical direction to the side close to the first guide roller 22. When the free end of the first filter screen 24 passes the bottom of the front air outlet 11 in the vertical direction and reaches the first guide roller 22, the first guide roller 22 is pressed against the filter screen 24. The free end of the first filter screen 24 is guided so that the free end of the first filter screen 24 moves horizontally toward the side close to the rear air outlet 12. When the free end of the first filter screen 24 passes the free end of the water receiving tray 4 in the horizontal direction and reaches the second guide roller 25, the second guide roller 25 guides the free end of the first filter screen 24 so that the free end of the first filter screen 24 moves toward the side close to the third guide roller 26. When the free end of the first filter screen 24 reaches the third guide roller 26, the third guide roller 26 guides the free end of the first filter screen 24 so that the first filter screen 24 moves toward the side close to the third guide roller 26. The free end of the net 24 moves horizontally toward the side close to the first motor 23. When the free end of the first filter 24 reaches the position of the third detection member 203, the third detection member 203 detects the first filter 24 and generates a third detection signal and sends it to the controller. The controller controls the first motor 23 to stop according to the third detection signal. At this time, the first filter 24 is located between the first reel 21 and the first guide roller 22. The part of the first filter 24 that is unfolded can filter the return air entering the first space 101 from the front air outlet 11. The first filter 24 is located between the second guide roller 22. The part extended between the first guide roller 22 and the second guide roller 25 covers the second space 102, and can filter the return air entering the second space 102 from the rear air outlet 12 once. The part extended between the first filter screen 24 and the second guide roller 25 covers the first gap, and can filter the return air entering the second space 102 from the rear air outlet 12 and then entering the first space 101 for a second time. The filtered gas entering the cabinet 1 from the front air outlet 11 and the rear air outlet 12 is discharged from the air outlet 13 after heat exchange through the heat exchanger 3.

[0092] In a preferred embodiment, the filter assembly 2 comprises:

[0093] A first reel 21 is rotatably connected to the cabinet 1 near the top of the front air outlet 11;

[0094] The first motor 23 is fixed to the cabinet 1 near the bottom of the front air outlet 11, and a connecting rope is fixed to the driving end of the first motor 23;

[0095] A first filter screen 24, one end of the first filter screen 24 is fixed to the first reel 21, and a free end of the first filter screen 24 extends in a vertical direction and is fixed to the connecting rope through a hook 204;

[0096] The second scroll 27 is rotatably connected to the water receiving tray 4 on one side close to the second space 102;

[0097] A first guide roller 22, the first guide roller 22 is rotatably connected to the bottom of the cabinet 1;

[0098] The second motor 28 is fixed to the bottom of the cabinet 1, located on the side of the first guide roller 22 away from the rear air outlet 12, and a connecting rope is fixed to the driving end of the second motor 28;

[0099] The second filter screen 29 has one end fixed on the second reel 27 , and the free end of the second filter screen 29 extends in the vertical direction and passes through the first guide roller 22 , and is then fixed to the connecting rope through the hook 204 .

[0100] like Figure 5 As shown, the first reel 21 is rotatably connected to the cabinet 1 and is located above the front air outlet 11. The first motor 23 is fixed on a solid and is located below the front air outlet 11. The connecting rope is fixed to the driving end of the first motor 23 and can be reeled or unfolded under the drive of the first motor 23. The second reel 27 is rotatably connected to the side of the water receiving tray 4 close to the second space 102. The first guide roller 22 is rotatably connected to the bottom of the cabinet 1. The second motor 28 is fixed to the bottom of the cabinet 1 and is located on the side of the first guide roller 22 away from the rear air outlet 12. The driving end of the second motor 28 is also fixed with a connecting rope.

[0101] When the air cooling cabinet only needs the front air outlet 11 for return air during operation, the first motor 23 is started, and the driving end of the first motor 23 drives the connecting rope to reel in, thereby driving the free end of the first filter 24, so that the free end of the first filter 24 moves from the first reel 21 along the vertical direction to the side close to the first motor 23. When the free end of the first filter 24 passes the bottom of the front air outlet 11 in the vertical direction and reaches the position of the first motor 23, the first motor 23 stops. At this time, the part of the first filter 24 unfolded from the first reel 21 can filter the return air entering the first space 101 from the front air outlet 11, and the filtered gas is discharged from the air outlet 13 after heat exchange by the heat exchanger 3.

[0102] When the air cooling cabinet only needs the rear air outlet 12 for return air during operation, the second motor 28 is started, and the driving end of the second motor 28 drives the connecting rope to reel in, thereby driving the free end of the second filter screen 29 to move the free end of the second filter screen 29 from the second reel 27 along the vertical direction to the side close to the first guide roller 22. When the free end of the second filter screen 29 reaches the first guide roller 22, the first guide roller 22 guides the free end of the second filter screen 29 to move the free end of the second filter screen 29 along the horizontal direction to the side close to the second motor 28. When the free end of the second filter screen 29 reaches the position of the second motor 28, the second motor 28 stops. At this time, the part of the second filter screen 29 located between the second reel 27 and the first guide roller 22 covers the second space 102, which can filter the return air entering the second space 102 from the rear air outlet 12, and the filtered gas is discharged from the air outlet 13 after heat exchange by the heat exchanger 3.

[0103] When the air cooling cabinet needs the front air outlet 11 and the rear air outlet 12 to return air together during operation, the first motor 23 and the second motor 28 are started, and the driving end of the first motor 23 drives the connecting rope to reel in, and then drives the free end of the first filter screen 24 to move the free end of the first filter screen 24 from the first reel 21 to the side close to the first motor 23 in the vertical direction. When the free end of the first filter screen 24 passes the bottom of the front air outlet 11 in the vertical direction and reaches the position of the first motor 23, the first motor 23 stops. At this time, the part of the first filter screen 24 unfolded from the first reel 21 can filter the return air entering the first space 101 from the front air outlet 11; at the same time, the driving end of the second motor 28 drives the connecting rope to reel in, and then drives the free end of the second filter screen 29, so that the free end of the second filter screen 29 The free end of the second filter screen 29 moves from the second reel 27 along the vertical direction to the side close to the first guide roller 22. When the free end of the second filter screen 29 reaches the first guide roller 22, the first guide roller 22 guides the free end of the second filter screen 29 so that the free end of the second filter screen 29 moves horizontally to the side close to the second motor 28. When the free end of the second filter screen 29 reaches the position of the second motor 28, the second motor 28 stops. At this time, the part of the second filter screen 29 that is unfolded between the second reel 27 and the first guide roller 22 covers the second space 102, and can filter the return air entering the second space 102 from the rear air outlet 12. The return air from the front air outlet 11 and the rear air outlet 12 is filtered by the first filter screen 24 and the second filter screen 29 respectively, and then discharged from the air outlet 13 after heat exchange in the heat exchanger 3.

[0104] On the basis of the above, when the first filter 24 and the second filter 29 are unfolded, the parts of the two corresponding to the water receiving tray 4 in the vertical direction are both located below the water receiving tray 4, thereby preventing the first filter 24 and the second filter 29 from being disturbed by the condensed water generated on the heat exchanger 3, affecting the filtering effects of the two. At the same time, the second motor 28 is located on the side of the first guide roller 22 away from the rear air outlet 12. After the return air from the rear air outlet 12 enters the second space 102, it is first filtered by the part of the second filter 29 unfolded between the second scroll 27 and the first guide roller 22 before reaching the first motor 23, which can effectively protect the second motor 28 from the influence of sand and impurities in the return air, thereby increasing the service life of the second motor 28.

[0105] Furthermore, if the environment around the rear air outlet 12 is relatively harsh, the fixed position of the first motor 23 can be adjusted and the number of guide rollers can be increased so that the second filter 29 can form a secondary filtration or multi-stage filtration structure in the second space 102 after being fully expanded.

[0106] In a preferred embodiment, the filter assembly 2 comprises:

[0107] A first reel 21 is rotatably connected to a side of the water receiving tray 4 close to the second space 102;

[0108] The first filter screen 24 has one end fixed on the first reel 21 , and the free end of the first filter screen 24 is fixed to the top of the front air outlet 11 through a hook 204 .

[0109] like Figure 6 As shown, the filter screen of the filter assembly 2 can also be unfolded manually, and the first scroll 21 is rotatably connected to the side of the water receiving tray 4 close to the second space 102, and is located near the free end of the water receiving tray 4. When installing the filter assembly 2, the operator can manually pull the free end of the first filter screen 24 so that the free end of the first filter screen 24 passes through the first gap under the action of external force, extends to a position close to the top of the front air outlet 11, and is fixed to the top of the front grille of the front air outlet 11 through the hook 204; when the air cooling cabinet needs the front air outlet 11 and the rear air outlet 12 to return air together during operation, the return air of the front air outlet 11 and the rear air outlet 12 can pass through the unfolded first filter screen 24 together, and be discharged from the air outlet 13 after heat exchange in the heat exchanger 3.

[0110] Example 2

[0111] This embodiment provides an air-cooled cabinet device, including a retractable filter structure for an air-cooled cabinet as described in Example 1.

[0112] like Figure 7-9As shown, the air cooling cabinet device includes a cabinet body 1, which is approximately a rectangular parallelepiped structure. A front air vent 11 and a rear air vent 12 are respectively opened on the cabinet body 1 along its width direction (i.e., the front and rear directions). The rear air vent 12 is located on the cabinet body 1 near the bottom of the cabinet body 1. The height of the front air vent 11 in the vertical direction is higher than the height of the rear air vent 12 in the vertical direction. A front grille and a rear grille are respectively installed at the front air vent 11 and the rear air vent 12. The function of the grille is not limited to ventilation, but also involves safety, dust prevention, airflow optimization and other aspects. It can ensure the efficient flow of hot and cold air. By designing the opening direction and density of the grille, hot and cold air can be prevented. The air is mixed to improve the cooling efficiency; it can also prevent people from accidentally touching the high-speed rotating fan blades or high-temperature components inside, and prevent large particles of debris from falling into the cabinet 1 and damaging the equipment. It is the first barrier of the cabinet 1; an operation panel is provided above the front air outlet 11 on the outside of the cabinet 1, and the operation panel is electrically connected to the controller of the air-cooling cabinet device. The operator can control the air-cooling cabinet device by touching the operation panel; an air outlet 13 is provided on the top of the cabinet 1, and a fan is provided near the air outlet 13 inside the cabinet 1, and the exhaust port of the fan corresponds to the air outlet 13. The heat exchanger 3 is tilted in the cabinet 1, and it has an angle with the horizontal direction, connecting The water pan 4 is arranged below the heat exchanger 3 and extends in the horizontal direction. The projection of the heat exchanger 3 in the vertical direction corresponds to the projection of the water pan 4 in the vertical direction, so that the condensed water generated on the heat exchanger 3 can be received by the water pan 4 after falling and uniformly discharged to the outside of the cabinet 1; the air-cooled cabinet device is provided with a front air outlet 11 and a rear air outlet 12, and has multiple working modes such as the front air outlet 11 and the rear air outlet 12 return air separately, the front air outlet 11 and the rear air outlet 12 return air together, and the front air outlet 11 returns air and the rear air outlet 12 takes in fresh air. The filter component 2 is arranged on the side of the heat exchanger 3 away from the air outlet 13. The filter component 2 includes a scroll, a filter screen, and a motor. and guide roller, the filter screen is wound on the reel. When the motor rotates forward to drive the free end of the filter screen to move, the filter screen can be extended and unfolded from the reel. When the motor reverses, the reel rotates to reel the filter screen onto the reel. At the same time, the reel can be replaced with other electric reeling devices, so that the unfolding and reeling of the filter screen are completed by motor drive. The guide roller is set on the fixed structure in the cabinet 1 to guide the unfolded filter screen and facilitate the layout of the filter screen. By setting up the filter component 2 with the above structure, it can be unfolded in the cabinet 1 according to actual needs, and then the return air of the front air outlet 11 and / or the rear air outlet 12 can be filtered in different working modes.

[0113] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0114] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0115] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A retractable filter structure for an air-cooled cabinet, arranged in a cabinet body (1) of the air-cooled cabinet, wherein the cabinet body (1) has a first space (101) and a second space (102), a front air inlet (11) and a rear air inlet (12) are respectively opened on both sides of the cabinet body (1) corresponding to the first space (101) and the second space (102), and an air outlet (13) is opened on the top, characterized in that: The filtering structure comprises: a heat exchanger (3), the heat exchanger (3) being arranged in the first space (101); a water receiving pan (4), the water receiving pan (4) being arranged below the heat exchanger (3) and being used to receive condensed water generated on the heat exchanger (3); a first gap being provided between the water receiving pan (4) and the cabinet (1), the first gap being in communication with the first space (101) and the second space (102); A filter assembly (2), the filter assembly (2) being arranged on a side of the heat exchanger (3) away from the air outlet (13), the filter assembly (2) being deployable in the first space (101) and / or the second space (102), so that gas enters the cabinet (1) through the front air outlet (11) and / or the rear air outlet (12), passes through the filter assembly (2) and the heat exchanger (3) in sequence, and is then discharged through the air outlet (13).

2. The retractable filter structure of the air-cooled cabinet according to claim 1, characterized in that: The filter assembly (2) comprises: a first reel (21), the first reel (21) being rotatably connected to a position on the cabinet (1) near the top of the front air outlet (11); a first guide roller (22), the first guide roller (22) being rotatably connected to a position on the cabinet (1) near the bottom of the front air outlet (11); a first motor (23), the first motor (23) being fixed on a side of the water receiving tray (4) close to the second space (102), and a connecting rope being fixed to a driving end of the first motor (23); A first filter screen (24), one end of which is fixed on the first reel (21); a free end of the first filter screen (24) passes through the first guide roller (22) and is fixed to the connecting rope via a hook (204).

3. The retractable filter structure of the air-cooled cabinet according to claim 1, characterized in that: The filter assembly (2) comprises: a first reel (21), the first reel (21) being rotatably connected to a position on the cabinet (1) near the top of the front air outlet (11); a first guide roller (22), the first guide roller (22) being rotatably connected to a position on the cabinet (1) near the bottom of the front air outlet (11); a second guide roller (25), the second guide roller (25) being rotatably connected to a side of the water receiving tray (4) close to the second space (102); a third guide roller (26), the third guide roller (26) being rotatably connected to the bottom of the cabinet (1); A first motor (23), the first motor (23) being fixed to the bottom of the cabinet (1), and a connecting rope being fixed to a driving end of the first motor (23); A first filter screen (24), one end of which is fixed on the first reel (21); a free end of the first filter screen (24) passes through the first guide roller (22), the second guide roller (25) and the third guide roller (26) in sequence, and is then fixed to the connecting rope via a hook (204).

4. The retractable filter structure of the air-cooled cabinet according to claim 3, characterized in that: A first detection member (201) is provided on the cabinet (1) at a position close to the first guide roller (22), a second detection member (202) is provided on the water receiving tray (4) at a position close to the second guide roller (25), and a third detection member (203) is provided on the cabinet (1) at a position close to the third guide roller (26). The first detection member (201), the second detection member (202) and the third detection member (203) are communicatively connected to a controller, and the controller is used to control the start and stop of the first motor (23).

5. The retractable filter structure of the air-cooled cabinet according to claim 4, characterized in that: When the first motor (23) drives the free end of the first filter (24) to move to the first guide roller (22), the first detection member (201) generates a first detection signal and sends it to the controller. The controller controls the first motor (23) to stop according to the first detection signal, and the gas enters the cabinet (1) through the front air inlet (11), is filtered by the first filter (24), and then is discharged from the air outlet (13) through the heat exchanger (3).

6. The retractable filter structure of the air-cooled cabinet according to claim 4, characterized in that: When the first motor (23) drives the free end of the first filter (24) to pass through the first guide roller (22) and move to the second guide roller (25), the second detection member (202) generates a second detection signal and sends it to the controller. The controller controls the first motor (23) to stop according to the second detection signal, and the gas enters the cabinet (1) through the front air inlet (11) and the rear air inlet (12), is filtered by the first filter (24), and then is discharged from the air outlet (13) through the heat exchanger (3).

7. The retractable filter structure of the air-cooled cabinet according to claim 4, characterized in that: When the first motor (23) drives the free end of the first filter (24) to pass through the first guide roller (22) and the second guide roller (25) in sequence and move to the third guide roller (26), the third detection member (203) generates a third detection signal and sends it to the controller. The controller controls the first motor (23) to stop according to the third detection signal. The gas enters the cabinet (1) from the front air inlet (11), is filtered by the first filter (24), and then is discharged from the air outlet (13) through the heat exchanger (3); the gas enters the cabinet (1) from the rear air inlet (12), is filtered twice by the first filter (24), and then is discharged from the air outlet (13) through the heat exchanger (3).

8. The retractable filter structure of an air-cooled cabinet according to claim 1, characterized in that: The filter assembly (2) comprises: a first reel (21), the first reel (21) being rotatably connected to a position on the cabinet (1) near the top of the front air outlet (11); A first motor (23), the first motor (23) being fixed on the cabinet (1) at a position close to the bottom of the front air outlet (11), and a connecting rope being fixed to a driving end of the first motor (23); a first filter screen (24), one end of the first filter screen (24) being fixed on the first reel (21), and a free end of the first filter screen (24) extending in a vertical direction and being fixed to the connecting rope via a hook (204); a second reel (27), the second reel (27) being rotatably connected to a side of the water receiving tray (4) close to the second space (102); a first guide roller (22), the first guide roller (22) being rotatably connected to the bottom of the cabinet (1); A second motor (28), the second motor (28) being fixed to the bottom of the cabinet (1), and a connecting rope being fixed to a driving end of the second motor (28); A second filter screen (29), one end of which is fixed on the second reel (27); a free end of the second filter screen (29) extends in a vertical direction and passes through the first guide roller (22), and is then fixed to the connecting rope via a hook.

9. The retractable filter structure of an air-cooled cabinet according to claim 1, characterized in that: The filter assembly (2) comprises: a first reel (21) and a first filter screen (24), wherein one end of the first filter screen (24) is fixed on the first reel (21); a first reel (21), the first reel (21) being rotatably connected to a side of the water receiving tray (4) close to the second space (102); a first filter screen (24), one end of the first filter screen (24) being fixed to the first reel (21), and a free end of the first filter screen (24) being fixed to the top of the front air outlet (11) via a hook (204); or, The first reel (21) is rotatably connected to the top of the front air outlet (11), and the free end of the first filter (24) is fixed to the side of the water receiving tray (4) close to the second space (102) through a hook (204).

10. An air cooling cabinet device, characterized in that: It comprises a retractable filter structure for an air cooling cabinet as described in any one of claims 1 to 9.

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