Louver with filter cotton and energy storage cabinet

Abstract

The utility model discloses a shutter with filter cotton and an energy storage cabinet, and relates to the technical field of shutters, the shutter comprises: a shutter assembly comprising a shutter main body; the roller assembly comprises a first roller and a second roller which are fixed to the opposite sides of the shutter body, each of the first roller and the second roller comprises a shell and a rotating shaft rotationally arranged in the corresponding shell, the rotating shafts and the corresponding shells are arranged in a spaced mode in the radial direction, the two rotating shafts are arranged in parallel, and at least one rotating shaft is in transmission connection with the driving part. A notch is formed in the side, close to the shutter body, of the shell One end of each filter cotton is connected with one corresponding rotating shaft through the corresponding notch, the other end of each filter cotton is connected with the other corresponding rotating shaft through the corresponding notch, so that the filter cotton is driven to move towards the rotating shafts with the driving parts, and the filter cotton between the two notches corresponds to the shutter main body. The problem that the filter cotton of the shutter is frequently replaced is solved, and the frequency of maintaining the filter cotton is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shutter, in particular to a shutter with filter cotton and an energy storage cabinet. BACKGROUND

[0002] The electrical cabin of a commercial energy storage cabinet (hereinafter referred to as an energy storage cabinet) needs to be cooled by a fan, and generally draws air from the front door shutter and exhausts air from the rear door shutter. Since the energy storage cabinet is usually placed outdoors, most of them are in industrial parks with a lot of dust and dirt, so a piece of filter cotton needs to be arranged in the front door shutter assembly.

[0003] In order to ensure smooth air intake and filtering effect, the filter cotton needs to be replaced regularly. The filter cotton in the general environment needs to be replaced every three months, and the filter cotton in the harsh environment, such as foundry, cement plant, paint spraying workshop, etc., needs to be replaced every month. Each time the filter cotton is replaced, the maintenance personnel need to go to the site, open the front door, disassemble the screws on the shutter, insert the new filter cotton and then screw back the screws. The whole process will cause the energy storage cabinet to be at least shut down for 10 minutes. Since the energy storage cabinet projects are scattered and the number is large, such high maintenance frequency will greatly increase the workload of the maintenance personnel, and if the maintenance is not in place, it will affect the economic benefit of the energy storage cabinet.

[0004] Therefore, in view of the above technical problems, how to avoid frequent replacement of the filter cotton of the shutter is a technical problem that needs to be solved by those skilled in the art. Content of the utility model

[0005] The purpose of the present application is to provide a shutter with filter cotton and an energy storage cabinet, which solves the problem of frequent replacement of the filter cotton of the shutter and greatly reduces the frequency of maintaining the filter cotton.

[0006] To achieve the above-mentioned purpose, the present application provides a shutter with filter cotton, which comprises:

[0007] The shutter assembly comprises a shutter main body;

[0008] The roller assembly comprises a first roller and a second roller fixed on opposite sides of the shutter main body, the first roller and the second roller each comprise a housing and a rotating shaft rotatingly arranged in the corresponding housing, the rotating shaft is arranged in radial direction and spaced apart from the corresponding housing, the two rotating shafts are arranged in parallel, and at least one rotating shaft is in transmission connection with a driving member, and the housing is provided with a notch close to one side of the shutter main body;

[0009] The filter cotton is connected with one of the rotating shafts at one end through the gap and connected with the other rotating shaft at the other end through the gap, so as to drive the filter cotton to move towards the rotating shaft with the driving member, and the filter cotton between the two gaps corresponds to the shutter body.

[0010] Preferably, the shutter assembly further comprises guide plates arranged on the other opposite side of the shutter body, and the guide plates and the shutter body form guide grooves along the movement direction of the filter cotton, and the guide grooves formed by the two guide plates and the shutter body are oppositely arranged.

[0011] Preferably, a detection sensor corresponding to the filter cotton is arranged on the shutter body or the guide plate, and an induction position is arranged on the filter cotton at every interval of the length or width of the shutter body, and the detection sensor is used to detect the induction position to identify the movement distance of the filter cotton.

[0012] Preferably, one end of the shell is closed, and the other end is covered with a detachable end cover, and the two ends of the shell are connected with the cabinet door or the shutter body through mounting plates.

[0013] Preferably, small-diameter shafts coaxial with the rotating shafts are arranged at the two ends of the rotating shafts, the closed end of the shell is provided with a first through hole in rotationally matched with the small-diameter shafts, the end cover is provided with a second through hole in rotationally matched with the small-diameter shafts, and the outer end surface of the closed end of the shell and the outer end surface of the end cover are provided with a plurality of pin shafts parallel to the small-diameter shafts.

[0014] The two mounting plates respectively fit the outer end surface of the closed end of the shell and the outer end surface of the end cover, and a pin hole corresponding to each pin shaft is arranged on the mounting plate, an opening is arranged on the side of the pin hole facing the pin shaft to allow the pin shaft to enter the pin hole, the diameter of the pin shaft is matched with the diameter of the pin hole, and the opening side of the pin hole is smaller than the diameter of the pin shaft.

[0015] Preferably, the driving member is a stepping motor or a servo motor, and the driving member is fixedly arranged on the mounting plate corresponding to the closed end of the shell, a driving wheel is arranged on the output shaft of the driving member, a driven wheel is arranged on the small-diameter shaft outside the closed end of the shell, and the driving wheel and the driven wheel are connected through a synchronous belt transmission.

[0016] Preferably, the rotating shaft is coaxially arranged with the corresponding shell, and the rotating shaft is provided with a limiting groove along the axial direction, the filter cotton end is inserted into the limiting groove, and a plurality of threaded holes communicated with the limiting groove are formed on the rotating shaft, a bolt is arranged in the threaded hole, the end of the bolt abuts against the filter cotton in the limiting groove, and the filter cotton is pressed against the groove wall or groove bottom of the limiting groove.

[0017] Preferably, the shell on both sides of the gap has a flat part parallel to the shutter body, and the filter cotton is inserted or taken out along the gap in a posture parallel to the shutter body.

[0018] Preferably, a tension sensor is further arranged on the shutter body, and is used to detect the tension of the filter cotton between the two gaps.

[0019] An energy storage cabinet comprises a cabinet door and a shutter arranged at the air inlet and outlet of the cabinet door, and the shutter is the shutter with filter cotton described above.

[0020] With respect to the above background, two rollers for storing filter cotton rolls are arranged on opposite sides of the shutter body, and the two ends of the filter cotton are connected with the rotating shafts of the two rollers respectively, and the rotating shaft of one of the rollers is connected with a driving member, so as to drive the old filter cotton at the shutter body to be wound into the roller, and the old filter cotton is recycled; at the same time, under the action of the driving member, the new filter cotton in the other roller is also pulled out and unfolded at the shutter body, and the filter cotton at the shutter body is replaced, which can be automatically replaced without manual operation, and the frequency of replacing the filter cotton is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0022] Figure 1 A shutter with filter cotton provided by the embodiments of the present application is shown in the three-dimensional structure schematic diagram.

[0023] Figure 2 A filter cotton and roller assembly cooperation structure schematic diagram provided by the embodiments of the present application is shown.

[0024] Figure 3 A Figure 1 An enlarged structure schematic diagram at A in the middle is shown.

[0025] Figure 4A first roller and mounting plate cooperation structure schematic diagram provided by the embodiment of the present application;

[0026] Figure 5 A second roller and driving member cooperation structure schematic diagram provided by the embodiment of the present application;

[0027] Figure 6 A shell structure schematic diagram provided by the embodiment of the present application;

[0028] Figure 7 A rotating shaft structure schematic diagram provided by the embodiment of the present application;

[0029] Figure 8 A storage cabinet structure schematic diagram provided by the embodiment of the present application.

[0030] In the figure: 1-louver assembly; 2-first roller; 3-second roller; 4-filter cotton; 5-guide plate; 6-louver body; 7-sensing site; 8-detection sensor; 9-shell; 10-rotating shaft; 11-mounting plate; 12-end cover; 13-small-diameter shaft; 14-pivot; 15-driving member; 16-driven wheel; 17-driving wheel; 18-synchronous belt; 19-notch; 20-flat part; 21-limiting groove; 22-threaded hole; 23-cabinet door. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0032] It should be noted that in the present embodiment, the directions or position relationships indicated by "up", "down", "front", "back" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0034] As Figures 1 to 8As shown in the embodiment, a shutter with filter cotton is provided, which comprises a shutter assembly 1, a roller assembly and filter cotton 4, the shutter assembly 1 comprises a shutter body 6 fixed at the air inlet of the cabinet door 23, and the shutter body 6 is provided for air circulation; of course, the shutter body 6 can also be provided at the air outlet of the rear side of the cabinet body, which is not limited here.

[0035] The roller assembly comprises a first roller 2 and a second roller 3 fixed at a pair of opposite sides of the shutter body 6, the first roller 2 and the second roller 3 each comprise a shell 9 and a rotating shaft 10 rotatably arranged in the corresponding shell 9, and the rotating shaft 10 is arranged in the radial direction of the corresponding shell 9, and the filter cotton 4 can be wound around the outer periphery of the rotating shaft 10. In addition, at least one rotating shaft 10 is in transmission connection with a driving member 15, so that the driving member 15 can drive the rotating shaft 10 to rotate, and one end of the filter cotton 4 is connected with the corresponding rotating shaft 10 through the gap 19 on the shell 9, and the other end of the filter cotton 4 is connected with the corresponding rotating shaft 10 through the gap 19 on the other shell 9; under the driving of the driving member 15, the rotating shaft 10 drives the filter cotton 4 to move towards the rotating shaft 10, so as to be wound around the outer periphery of the rotating shaft 10, and the filter cotton 4 is structurally continuous, so under the action of the driving member 15, the filter cotton 4 will be pulled out from the other rotating shaft 10.

[0036] The gap 19 is arranged on the side of the shell 9 close to the shutter body 6, and the filter cotton 4 between the two gaps 19 corresponds to the position of the shutter body 6, so that after the filter cotton 4 passes through the gap 19 and penetrates out of the shell 9, it can be as close as possible to the shutter body 6, so that as much air as possible passing through the shutter body 6 can flow through the filter cotton 4, and the filtering effect of the filter cotton 4 is ensured. The roller assembly and the filter cotton 4 are arranged on the side of the shutter body 6 facing the inside of the cabinet body, so as to ensure that the filter cotton 4 will not be affected by the external environment, and the filtering effect of the filter cotton 4 is ensured.

[0037] The gap 19 can be a through slot structure or a spacing structure formed by disconnecting the shell 9, so that the filter cotton 4 can penetrate into or out of the shell 9 through the gap 19, which is not limited here and falls within the scope of the present application.

[0038] It should be pointed out that the outer contour of the shutter body 6 is usually rectangular, and the first roller 2 and the second roller 3 can be arranged at two short sides of the rectangle, so that the filter cotton 4 moves along the length direction of the shutter body 6; of course, the first roller 2 and the second roller 3 can also be arranged at two long sides of the rectangle, so that the filter cotton 4 moves along the width direction of the shutter body 6.

[0039] In view of the fact that the filter cotton 4 needs to move stably along the length or width direction of the shutter body 6, the rotating shaft 10 in the first roller 2 can be arranged in parallel with the rotating shaft 10 in the second roller 3, so as to realize the stable movement of the filter cotton 4 between the two rotating shafts 10.

[0040] In addition, the shutter of the present application is matched with a control system, which comprises a control unit in which a control program is written. The control unit can be signal-connected with the driving member 15. A control signal with a time period can be written in the control unit. The time period is set by the staff according to the actual use of the filter cotton 4. After the driving motor is used for a time period, the driving motor is automatically started to drive the rotating shaft 10 to rotate, so that one side of the filter cotton 4 is wound into one roller, and the other side of the filter cotton 4 is wound out to the corresponding position of the shutter body 6, thereby realizing the automatic recycling of the old filter cotton 4 and the automatic replacement of the new filter cotton 4.

[0041] In combination with the above embodiments, the shutter body 6 is provided with two rollers for storing the filter cotton 4 in opposite sides. The two ends of the filter cotton 4 are connected with the rotating shafts 10 of the two rollers respectively. The rotating shaft 10 of one of the rollers is connected with the driving member 15, so as to drive the old filter cotton 4 at the shutter body 6 to be wound into the roller, thereby realizing the recycling of the old filter cotton 4. Meanwhile, under the action of the driving member 15, the new filter cotton 4 in the other roller is pulled out and unfolded at the shutter body 6, thereby realizing the replacement of the filter cotton 4 at the shutter body 6. The automatic replacement can be completed without manual operation, and the frequency of replacing the filter cotton 4 is greatly reduced.

[0042] In some embodiments, the shutter assembly 1 further comprises a guide plate 5 arranged at the other set of opposite edges of the shutter body 6. The guide plate 5 and the shutter body 6 form a guide groove along the movement direction of the filter cotton 4. The two guide grooves formed by the two guide plates 5 and the shutter body 6 are arranged oppositely, i.e. the openings of the two guide grooves are arranged oppositely. The two side edges of the filter cotton 4 are slidably arranged in the guide grooves, so that the filter cotton 4 has a certain limiting effect in the movement direction, and at least ensures the movement stability of the filter cotton 4 at the corresponding position of the shutter body 6.

[0043] The detection sensor 8 corresponding to the filter cotton 4 is arranged on the shutter body 6 or the guide plate 5, and can be a photoelectric switch, a proximity switch, a travel switch, a meter wheel, etc. An induction position 7 is arranged on the filter cotton 4 every interval of the length or width of the shutter body 6, and the detection sensor 8 can be used to detect the induction position 7, so as to identify the movement distance of the filter cotton 4. The above-mentioned "every interval of the length or width of the shutter body 6" corresponds to the movement direction of the filter cotton 4, that is, if the filter cotton 4 moves along the length direction of the shutter body 6, an induction position 7 is arranged every interval of the length of the shutter body 6, and vice versa, if the filter cotton 4 moves along the width direction of the shutter body 6, an induction position 7 is arranged every interval of the width of the shutter body 6. The induction position 7 can be a slot hole, a protrusion, etc., so as to ensure that the detection sensor 8 can change the signal after the induction position 7 passes through the detection area of the detection sensor 8.

[0044] Further, when a time period of the driving member 15 is passed, it is indicated that the filter cotton 4 at the corresponding position of the shutter body 6 is dirty and old, and cannot guarantee the smooth air intake and exhaust and the filtering effect. At this time, the driving member 15 is actuated to drive the corresponding rotating shaft 10 to rotate, so that the filter cotton 4 at the position of the shutter body 6 is flattened and rolled into a roller. At the same time, the filter cotton 4 of the other roller is pulled out, and the filter cotton 4 moves in the guide groove until the induction position 7 on the filter cotton 4 passes through the detection area of the detection sensor 8, which proves that the filter cotton 4 has been covered on the shutter body 6 again. The driving member 15 stops the action, and the replacement of the filter cotton 4 is completed.

[0045] In order to facilitate the replacement of the filter cotton 4 on the roller assembly, one end of the shell 9 is arranged as a closed structure, and the other end of the shell 9 is covered with a detachable end cover 12. The shell 9 is opened through the end cover 12, and the filter cotton 4 is put into or taken out of the shell 9 in the form of curling. The end of the notch 19 close to the end cover 12 should be provided with an opening, so that the filter cotton 4 at the notch 19 can be put into or taken out through the opening of the notch 19 when the filter cotton 4 is put into or taken out of the shell 9.

[0046] The shell 9 is fixedly connected with the cabinet door 23 or the shutter body 6 through the mounting plates 11 at both ends, specifically, the mounting plates 11 are fixed on the cabinet door 23 or the shutter body 6 through bolts, and the shell 9 is detachably connected with the mounting plates 11 at both ends, a small-diameter shaft 13 coaxial with the rotating shaft 10 is arranged at both ends of the rotating shaft 10, a first through hole in rotational cooperation with the small-diameter shaft 13 is arranged at the closed end of the shell 9, and a first through hole in rotational cooperation with the small-diameter shaft 13 is arranged on the end cover 12, so that the rotating shaft 10 can be taken out from the shell 9 after the end cover 12 is removed, the detachable connection between the rotating shaft 10 and the shell 9 is realized, and the rotating function is simultaneously achieved. A plurality of pin shafts 14 parallel to the small-diameter shaft 13 are arranged on the outer end face of the closed end of the shell 9 and the outer end face of the end cover 12, and the two mounting plates 11 are attached to the outer end face of the closed end of the shell 9 and the outer end face of the end cover 12 respectively, which can play a certain supporting role. Meanwhile, a pin hole corresponding to each pin shaft 14 is arranged on the mounting plate 11, and an opening is arranged on the side of the pin hole facing the pin shaft 14, which can drive the first roller 2 or the second roller 3 to move towards the mounting plate 11, so that the pin shaft 14 enters the pin hole through the opening on the pin hole, and the detachable connection between the first roller 2 and the second roller 3 and the mounting plate 11 is realized. In addition, the diameter of the pin hole is matched with the diameter of the pin shaft 14, so as to ensure the stability of the pin shaft 14 in the pin hole, and the opening side of the pin hole is smaller than the diameter of the pin shaft 14, so as to prevent the pin shaft 14 from being accidentally taken out of the pin hole, and ensure the installation stability of the first roller 2 and the second roller 3.

[0047] In addition, among the two mounting plates 11 corresponding to one roller, the two mounting plates 11 can have a clamping force for clamping the roller, that is, the two mounting plates 11 are in interference fit with the roller in the axial direction of the roller, so as to further improve the setting stability of the first roller 2 or the second roller 3.

[0048] The driving member 15 is a stepping motor or a servo motor, which has high control accuracy. The driving member 15 is fixed on the mounting plate 11 corresponding to the closed end of the shell 9, a driving wheel 17 is arranged on the output shaft of the driving member 15, and a driven wheel 16 is arranged on the small-diameter shaft outside the closed end of the shell 9. The driving wheel 17 and the driven wheel 16 are in transmission connection through a synchronous belt 18, so as to drive the corresponding rotating shaft 10 to rotate.

[0049] It should be noted that the rotating shaft 10 is coaxially arranged with the corresponding shell 9, and a limiting groove 21 is arranged on the rotating shaft 10 in the axial direction of the rotating shaft 10. The end portion of the filter cotton 4 extends into the limiting groove 21, and a plurality of threaded holes 22 in communication with the limiting groove 21 are arranged on the rotating shaft 10. A bolt is arranged in the threaded hole 22, and the end portion of the bolt abuts against the filter cotton 4 in the limiting groove 21, so as to press the filter cotton 4 against the groove wall or groove bottom of the limiting groove 21. Under the rotation of the rotating shaft 10, the filter cotton 4 can be wound around the outer periphery of the rotating shaft 10 or unwound from the outer periphery of the rotating shaft 10.

[0050] In addition, the shell 9 on both sides of the gap 19 has a flat part 20 parallel to the shutter body 6, which has a guiding effect, so that the filter cotton 4 is transmitted into or out of the gap 19 in a posture parallel to the shutter body 6, so that the filter cotton 4 is more suitable for the shutter body 6.

[0051] The shutter of the present application also includes a tension sensor arranged on the shutter body 6, which can detect the tension of the filter cotton 4 between the two gaps 19. When the filter cotton 4 is used up, the filter cotton 4 cannot move, and if the driving part 15 is actuated at this time, the filter cotton 4 will be taut, and the tension will increase significantly, so that an external alarm device can prompt the staff to replace the new filter cotton 4.

[0052] The present application also provides an energy storage cabinet, please refer to Figure 8 The energy storage cabinet includes a cabinet door 23 and a shutter arranged at the air inlet and outlet of the cabinet door 23, and the shutter is the shutter with filter cotton described above.

[0053] It should be noted that in the present specification, relational terms such as first and second are used only to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0054] The principles and implementation modes of the present application are described by applying specific examples in the present text, and the above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A venetian blind with filter cotton, characterized in that, include: A louver assembly (1) includes a louver body (6). The roller assembly includes a first roller (2) and a second roller (3) fixed on opposite sides of the louver body (6). Both the first roller (2) and the second roller (3) include a housing (9) and a rotating shaft (10) rotatably disposed within the respective housing (9). The rotating shaft (10) is radially spaced from the respective housing (9). The two rotating shafts (10) are arranged in parallel, and at least one of the rotating shafts (10) is connected to a drive member (15). The housing (9) has a notch (19) on the side near the louver body (6). The filter cotton (4) is connected at one end to a corresponding pivot (10) through the notch (19) and at the other end to another pivot (10) through the notch (19) to drive the filter cotton (4) toward the pivot (10) with the drive member (15), and the filter cotton (4) between the two notches (19) corresponds to the venetian blind body (6).

2. The venetian blind with filter cotton according to claim 1, characterized in that, The louver assembly (1) also includes a guide plate (5) disposed on the other opposite side of the louver body (6). A guide groove is formed between the guide plate (5) and the louver body (6) along the movement direction of the filter cotton (4). The two guide plates (5) and the guide groove formed by the louver body (6) are arranged opposite to each other.

3. The venetian blind with filter cotton according to claim 2, characterized in that, The louver body (6) or the guide plate (5) is provided with a detection sensor (8) corresponding to the filter cotton (4). A sensing position (7) is set on the filter cotton (4) at intervals of the length or width of the louver body (6). The detection sensor (8) is used to detect the sensing position (7) to identify the distance of movement of the filter cotton (4).

4. The venetian blind with filter cotton according to claim 1, characterized in that, The housing (9) is closed at one end and covered with a detachable end cap (12) at the other end. Both ends of the housing (9) are connected to the cabinet door (23) or the louver body (6) through mounting plates (11).

5. The venetian blind with filter cotton according to claim 4, characterized in that, The rotating shaft (10) has small diameter shafts (13) coaxial with the rotating shaft (10) at both ends. The closed end of the housing (9) has a first through hole that rotatably engages with the small diameter shaft (13). The end cover (12) has a second through hole that rotatably engages with the small diameter shaft (13). The outer end face of the closed end of the housing (9) and the outer end face of the end cover (12) have a plurality of pins (14) parallel to the small diameter shaft (13). The two mounting plates (11) are respectively attached to the outer end face of the closed end of the housing (9) and the outer end face of the end cover (12). The mounting plates (11) are provided with pin holes corresponding to the pins (14). The side of the pin hole facing the pin (14) is provided with an opening so that the pin (14) can enter the pin hole. The diameter of the pin (14) is adapted to the diameter of the pin hole. The opening side dimension of the pin hole is smaller than the diameter of the pin (14).

6. The venetian blind with filter cotton according to claim 5, characterized in that, The driving component (15) is a stepper motor or a servo motor. The driving component (15) is fixedly mounted on the mounting plate (11) corresponding to the closed end of the housing (9). The output shaft of the driving component (15) is provided with a driving wheel (17), and the small diameter shaft (13) is provided with a driven wheel (16) located outside the closed end of the housing (9). The driving wheel (17) and the driven wheel (16) are connected by a synchronous belt (18).

7. The venetian blind with filter cotton according to claim 1, characterized in that, The rotating shaft (10) is coaxially arranged with the corresponding housing (9), and the rotating shaft (10) has a limiting groove (21) along its axial direction. The end of the filter cotton (4) extends into the limiting groove (21), and a plurality of threaded holes (22) communicating with the limiting groove (21) are provided on the rotating shaft (10). A bolt is inserted in the threaded hole (22), and the end of the bolt abuts against the filter cotton (4) in the limiting groove (21) and presses the filter cotton (4) against the groove wall or bottom of the limiting groove (21).

8. The venetian blind with filter cotton according to claim 1, characterized in that, The housing (9) on both sides of the notch (19) has a flat portion (20) parallel to the louver body (6), and the filter cotton (4) goes in or out along the notch (19) in an attitude parallel to the louver body (6).

9. The venetian blind with filter cotton according to claim 1, characterized in that, It also includes a tension sensor, which is located on the louver body (6) and is used to detect the tension of the filter cotton (4) between the two notches (19).

10. An energy storage cabinet, characterized in that, Includes a cabinet door (23) and louvers located at the air inlet / outlet of the cabinet door (23), wherein the louvers are the louvers with filter cotton as described in any one of claims 1-9.

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