Purifier and laser processing system

Abstract

The utility model discloses a purifier and a laser processing system. The purifier comprises a machine shell, a filter element assembly and a sealing structure. The machine shell is provided with an air channel, an air inlet and an air outlet, the filter element assembly is arranged in the air duct and comprises a front filter element part and a rear filter element part which are sequentially arranged in the air passing direction of the air duct, each of the front filter element part and the rear filter element part comprises at least one filter element, and filter holes of the filter elements in the front filter element part are larger than those of the filter elements in the rear filter element part; the sealing structure is at least located between every two adjacent filter elements and is in an annular shape, and a first channel communicating the two adjacent filter elements is defined by the sealing structure. According to the technical scheme, the filtering effect of the purifier can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a purifier and a laser processing system. Background Art

[0002] Laser processing systems in the related art are typically equipped with a purifier to purify the exhaust gas. However, due to the complex components of the exhaust gas to be filtered, such as particles of varying sizes and harmful gases, traditional purifiers are difficult to adapt to effectively filter it, resulting in low filtering effectiveness. Utility Model Content

[0003] The main purpose of the utility model is to provide a purifier, aiming to improve the filtering effect of the purifier.

[0004] To achieve the above-mentioned purpose, the purifier proposed by the present invention comprises:

[0005] a housing, the housing being provided with an air duct and an air inlet and an air outlet communicating with the air duct;

[0006] A filter element assembly, the filter element assembly being disposed in the air duct, the filter element assembly comprising a front filter element component and a rear filter element component sequentially disposed along the airflow direction of the air duct, the front filter element component and the rear filter element component each comprising at least one filter element, and the filter pores of the filter element in the front filter element component are larger than the filter pores of the filter element in the rear filter element component; and

[0007] The sealing structure is located at least between each two adjacent filter elements and is in a ring shape to enclose and form a first channel communicating with the two adjacent filter elements.

[0008] Optionally, the filter element has an air inlet side and an air outlet side disposed in back-to-back relationship, and the sealing structure includes:

[0009] a first sealing member, the first sealing member being in a ring shape and being provided on the intake side; and

[0010] The second sealing member is in a ring shape and is provided on two adjacent filter elements on the air outlet side. The second sealing member abuts against the first sealing member and cooperates to enclose and form the first channel.

[0011] Optionally, in the wind direction of the air duct, the thickness of the first sealing member and the thickness of the second sealing member are different;

[0012] and / or, the first sealing member is bonded to the air intake side;

[0013] and / or, the second sealing member is bonded to the air outlet side;

[0014] And / or, the first sealing member is an annular integral structure, or a multi-segmented structure formed into an annular shape;

[0015] And / or, the second sealing member is an annular integral structure, or a multi-segmented split structure forming an annular shape;

[0016] And / or, the sealing structure is made of foam.

[0017] Optionally, the first sealing member is provided on the air inlet side of the filter element adjacent to the air inlet, and the first sealing member adjacent to the air inlet abuts against the casing and encloses to form a second channel connecting the air inlet and the filter element.

[0018] Optionally, the purifier also includes a cyclone separator, which is arranged in the air duct and located between the air inlet and the filter element adjacent to the air inlet; the air inlet side of the filter element adjacent to the air inlet is provided with the first seal, and the first seal adjacent to the air inlet abuts against the cyclone separator and encloses a third channel connecting the cyclone separator and the filter element.

[0019] Optionally, the sealing structure also includes a third seal, which is ring-shaped and is arranged on the side of the cyclone separator facing the filter element. The third seal abuts against the first seal adjacent to the cyclone separator and encloses a fourth channel connecting the cyclone separator and the third channel.

[0020] Optionally, the second sealing member is provided on the air outlet side of the filter element adjacent to the air outlet, and the second sealing member adjacent to the air outlet abuts against the casing and encloses to form a fifth channel connecting the air outlet and the filter element.

[0021] Optionally, the front filter element component includes at least one of a primary filter element and a medium filter element;

[0022] And / or, the rear filter element component includes at least one of an activated carbon filter element, a carbon cloth filter element and a high-efficiency filter element.

[0023] Optionally, the front filter element component includes a primary filter element and a medium-efficiency filter element, and the rear filter element component includes an activated carbon filter element, a carbon cloth filter element and a high-efficiency filter element;

[0024] The primary filter element, the medium-efficiency filter element, the activated carbon filter element, the carbon cloth filter element and the high-efficiency filter element are arranged in sequence along the wind direction of the air duct.

[0025] Optionally, the housing is further provided with a mounting port communicating with the air duct, the mounting port being opposite to the filter element assembly;

[0026] The housing is provided with at least two insertion slots arranged side by side in the wind direction of the air duct in the air duct, and a portion of each filter element is inserted into the corresponding insertion slot.

[0027] The utility model also provides a laser processing system, comprising:

[0028] A laser processing device, comprising a body and a laser head, wherein the body is provided with a processing chamber and an exhaust port communicating with the processing chamber; and

[0029] As described above, the purifier is arranged on the outside of the machine body, and the air inlet of the purifier is connected to the exhaust port; or, the purifier is arranged in the exhaust port; or, the purifier is arranged in the processing chamber, and the air outlet of the purifier is connected to the exhaust port.

[0030] The purifier of the technical solution of the present invention is formed by arranging at least two filter elements in the air duct of the casing along the air flow direction of the air duct to form a front filter element component and a rear filter element component, and the filter pores of the filter element in the front filter element component are larger than the filter pores from the rear filter element component to the filter element. At this time, when the processing exhaust gas enters the air duct from the air inlet of the casing, it can first pass through the filter element in the front filter element component with relatively large filter pores to perform preliminary filtration of relatively large particulate matter; and then pass through the filter element in the rear filter element component with relatively small filter pores to perform secondary filtration of relatively small particulate matter, harmful gases or odors, etc., thereby achieving the purifier's adaptive and effective filtration of various components to be filtered in the processing exhaust gas, thereby improving the filtration effect of the purifier. Furthermore, the purifier in this solution is also provided with a sealing structure, which is located at least between each two adjacent filter elements and encloses to form a first channel connecting the two adjacent filter elements. This can make the filter elements more sealed, so that the airflow can only enter the subsequent filter element through the first channel after flowing out of the previous filter element, reducing the possibility of airflow leakage between adjacent filter elements and improving the reliability of the purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 This is a schematic structural diagram of an embodiment of the laser processing system of the present utility model;

[0033] Figure 2 for Figure 1 Schematic diagram of the structure of the medium purifier;

[0034] Figure 3 for Figure 2 Schematic diagram of the structure of the middle casing;

[0035] Figure 4 for Figure 2 Schematic diagram of the assembly structure of the filter element component of the purifier;

[0036] Figure 5 for Figure 4 Schematic diagram of the assembly structure of part of the filter element and cyclone separator of the medium purifier;

[0037] Figure 6 for Figure 2 Schematic diagram of the assembly structure of the middle filter element and casing.

[0038] Description of Figure Numbers:

[0039] Label name Label name 100 Laser processing system 533 Rear filter components 10 Laser processing equipment 533a Activated carbon filter 11 Body 533b Carbon cloth filter element 111 Processing cavity 533c High-efficiency filter element 112 air inlet 534 filter element 113 exhaust port 535 Intake side 13 Laser head 537 Outlet side 50 purifier 55 Sealed structure 51 chassis 551 First Channel 511 air duct 552 First seal 512 air intake 552a Third Channel 513 air outlet 553 Second seal 514 Mounting port 553a Fifth Channel 515 First side wall 554 The third seal 516 Second side wall 554a Fourth Channel 517 Insert slot 57 Cyclone separator 53 filter element components 58 Door 531 Front filter components 59 Moving wheels 531a Primary filter element 70 connecting pipe 531b Medium efficiency filter element

[0040] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of 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.

[0042] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution in which both A and B are satisfied. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] Please refer to Figure 1 The present application proposes a laser processing system 100 , which includes a laser processing device 10 and a purifier 50 .

[0046] Among them, the laser processing device 10 can specifically be a laser engraving machine or a laser cutting machine, etc. This application does not limit the type of laser processing device 10, as long as it is a device that uses laser as a medium to process the workpiece to be processed. Furthermore, the laser processing device 10 may include a body 11 and a laser head 13, and the body 11 may be provided with a processing chamber 111 and an air inlet 112 and an exhaust port 113 connected to the processing chamber 111. The laser head 30 can be arranged in the processing chamber 111 to emit laser to realize laser processing of the workpiece to be processed placed in the processing chamber 111. In addition, the laser processing device 10 may also include a fan arranged on the body 11 to drive the external air flow to enter through the air inlet 112 and then be discharged through the exhaust port 113. Among them, the fan can be arranged in the processing chamber 111, and of course it can also be arranged in the air inlet 112 or the exhaust port 113.

[0047] The purifier 50 can be used to purify the exhaust gas from the laser processing device 10. Specifically, the purifier 50 can be located outside the housing 11 to reduce the size of the housing 11. In this case, the purifier's air inlet 512 can be connected to the exhaust port 113. Furthermore, the laser processing system 100 can also include a connecting tube 70, one end of which can be connected to the exhaust port 113 and the other end to the purifier 50. Furthermore, to facilitate separate transportation and storage of the purifier 50 and the housing 11, in one embodiment, the connecting tube 70 can be detachably connected to the housing 11 and the purifier 50. Furthermore, to simplify assembly and disassembly, the detachable connection between the connecting tube 70 and the housing 11 and the purifier 50 can be a snap-fit connection or a magnetic connection. Furthermore, to facilitate the placement of the connecting tube 70 in various locations, in one embodiment, the connecting tube 70 can be a hose. Of course, in some embodiments, the purifier 50 can also be located directly within the exhaust port 113. Alternatively, in some embodiments, the purifier 50 may also be disposed in the processing chamber 111 . In this case, the gas outlet 513 of the purifier 50 is connected to the exhaust port 113 .

[0048] Next, the structure of the purifier 50 is explained and described:

[0049] Please refer to reference 2 to Figure 5 In one embodiment of the present application, the purifier 50 includes a housing 51, a filter element assembly 53 and a sealing structure 55; the housing 51 is provided with an air duct 511 and an air inlet 512 and an air outlet 513 connected to the air duct 511; the filter element assembly 53 is arranged in the air duct 511, and the filter element assembly 53 includes a filter element along the wind direction of the air duct 511 (such as Figure 2 The front filter element component 531 and the rear filter element component 533 are arranged in sequence (as shown by the dotted arrows), and the front filter element component 531 and the rear filter element component 533 each include at least one filter element 534, and the filter pores of the filter element 534 in the front filter element component 531 are larger than the filter pores of the filter element 534 in the rear filter element component 533; the sealing structure 55 is located at least between every two adjacent filter elements 534, and is annular in shape to enclose a first channel 551 connecting the two adjacent filter elements 534.

[0050] The housing 51 can form a path for airflow on the purifier 50 through the air inlet 512, the air duct 511 and the air outlet 513. Among them, the air inlet 512 can be directly connected to the exhaust port 113 on the body 11 described above, and of course it can also be connected to the end of the connecting pipe 70 described above that is away from the exhaust port 113. Alternatively, when the purifier 50 is directly set in the exhaust port 113 or the processing chamber 111 of the body 11, the air inlet 512 can also be directly connected to the processing chamber 111. In addition, the flow of air on the purifier 50 can be powered by the fan provided on the body 11 as described above. Of course, the purifier 50 can also further include a fan to drive the airflow more effectively. In this case, the fan can be set in the air duct 511, or it can be set in the air inlet 512 or the air outlet 513.

[0051] Furthermore, when the purifier 50 is in normal use, with the ground as a reference, the air duct 511 within the housing 51 can be extended in the vertical direction, thereby enabling the housing 51 to extend in the vertical direction accordingly, thereby improving the utilization of the vertical space and reducing the footprint of the purifier 50. In this case, the air inlet 512 can be located at the upper end of the housing 51, and the air outlet 513 can be located at the lower end of the air duct 511, to achieve a top-to-bottom airflow direction, that is, airflow from top to bottom, so that the particulate matter to be filtered in the airflow does not need to overcome gravity, which is conducive to improving the airflow's ability to carry it.

[0052] Furthermore, the air inlet 512 can be provided on the upper surface of the casing 51, or on the side surface. Similarly, the air outlet 513 can be provided on the lower surface of the casing 51, or on the side surface. When the air outlet 513 is provided on the lower surface of the casing 51, a support column or a supporting structure such as the movable wheel 59 described below can be provided at the bottom of the casing 51 to form a gap between the casing 51 and the ground to facilitate airflow out of the air outlet 513. When the air outlet 513 is provided on the side surface of the casing 51, the air outlet 513 and the air inlet 512 can be located on the same side surface of the casing 51, or on different side surfaces.

[0053] Of course, it should also be noted that, in other embodiments, the air duct 511 and the housing 51 may also be arranged to extend in the horizontal direction or other directions. In addition, the projection of the housing 51 in the vertical direction may be a square or a rectangle, so that its shape is more regular and the convenience of its processing and manufacturing is improved. Among them, the "square or rectangle" here includes the case where the corners are not chamfered, and also includes the case where the borders are rounded or beveled. Of course, in other embodiments, the projection of the housing 51 in the vertical direction may also be a circle or other shapes, and this application is not limited to this.

[0054] The filter element 534 can be used to filter components to be filtered from the processing exhaust gas generated by the laser processing device 10. These components to be filtered may include particulate matter, harmful gases, or odors. Furthermore, there may be two filter elements 534. In this case, both the front filter element 531 and the rear filter element 533 may include only one filter element 534. Of course, the number of filter elements 534 may be three or more. In this case, at least one of the front filter element 531 and the rear filter element 533 may include at least two filter elements 534. Furthermore, the filter element 534 may be a cube or a rectangular parallelepiped to provide a more regular shape and enhance ease of processing and manufacturing. The term "cube or rectangular parallelepiped" here includes both corners that are not chamfered and corners that are rounded or beveled. Of course, in other embodiments, the filter element 534 may also be cylindrical or have other shapes, and this application is not limited thereto. Furthermore, in order to improve the compactness of the distribution and reduce the overall volume of the purifier 50 , in one embodiment, in the wind direction of the air duct 511 , the projected shapes of the housing 51 , the air duct 511 , and the filter element 534 can be set to be the same.

[0055] The sealing structure 55 can be positioned solely between two adjacent filter elements 534, or it can also be positioned further between the filter element 534 and the housing 51. The filter element 534 can include an inner filter portion and a mounting frame surrounding the filter portion. In this case, the sealing structure 55 can be positioned between the mounting frames of two adjacent filter elements 534, or further positioned between the mounting frame of the filter element 534 and the housing 51. The first channel 551 enclosed by the sealing structure 55 can be positioned corresponding to the filter portion. This ensures that the sealing structure 55 does not obstruct the filtering portion of the filter element 534, thereby increasing the effective filtering area of the filter element 534. Furthermore, the sealing structure 55 can be made of foam to provide good elasticity. When clamped, it can deform elastically, generating a deformation force. This deformation force then forces the sealing structure 55 to adhere tightly to the two objects to be sealed, enhancing the sealing effect of the sealing structure 55.

[0056] The purifier 50 of the present invention comprises at least two filter elements 534 disposed within the air duct 511 of the housing 51 along the airflow direction of the air duct 511, forming a front filter element 531 and a rear filter element 533. The filter pores of the filter element 534 in the front filter element 531 are larger than the filter pores of the filter element 534 in the rear filter element 533. When the process exhaust gas enters the air duct 511 through the air inlet 512 of the housing 51, it first passes through the filter element 534 in the front filter element 531, which has relatively larger pores, to perform a preliminary filtration of relatively large particulate matter. It then passes through the filter element 534 in the rear filter element 533, which has relatively smaller pores, to perform a secondary filtration of relatively small particulate matter, harmful gases, or odors. This allows the purifier 50 to effectively and adaptively filter various components to be filtered in the process exhaust gas, thereby improving the filtration effect of the purifier 50. At the same time, through the graded filtration of primary filtration and secondary filtration, the rear filter element component 533 is not easily exposed to relatively large particles, thereby reducing the possibility of blockage of the filter element 534 and increasing the service life of the filter element 534.

[0057] Furthermore, the purifier 50 of this embodiment is further provided with a sealing structure 55. This sealing structure 55 is located at least between each two adjacent filter elements 534 and is annular, enclosing a first channel 551 that connects the two adjacent filter elements 534. This ensures a relatively tight seal between the filter elements 534, ensuring that airflow from the preceding filter element 534 can only enter the succeeding filter element 534 through the first channel 551. This reduces the possibility of airflow leakage between adjacent filter elements 534 and improves the reliability of the purifier 50. Furthermore, adjacent filter elements 534 can be spaced apart to improve the smoothness of airflow and facilitate more complete contact between the airflow and each filter element 534, further enhancing the filtering effect of the purifier 50.

[0058] Please refer to Figure 2 In one embodiment of the present application, the filter element 534 in the front filter element component 531 can be at least one of a primary filter element 531a and a medium-efficiency filter element 531b. That is, the front filter element component 531 can include only the primary filter element 531a, or only the medium-efficiency filter element 531b, or both the primary filter element 531a and the medium-efficiency filter element 531b. Moreover, the number of primary filter elements 531a can be one, or two or more. Similarly, the number of medium-efficiency filter elements 531b can be one, or two or more.

[0059] In this embodiment, the primary filter element 531a can better filter larger particles (for example, dust, pollen, or hair, etc.), and the medium filter element 531b can better filter relatively small particles (for example, dust, smoke, etc.), thereby achieving effective preliminary interception and filtration of particles.

[0060] Please refer to Figure 2 In one embodiment of the present application, the filter element 534 in the rear filter element 533 can be at least one of an activated carbon filter element 533a, a carbon cloth filter element 533b, and a high-efficiency filter element 533c. That is, the rear filter element 533 can include only the activated carbon filter element 533a, only the carbon cloth filter element 533b, or the high-efficiency filter element 533c. Of course, the rear filter element 533 can also include any two of the activated carbon filter element 533a, the carbon cloth filter element 533b, and the high-efficiency filter element 533c. Alternatively, the rear filter element 533 can include all three of the activated carbon filter element 533a, the carbon cloth filter element 533b, and the high-efficiency filter element 533c. Furthermore, the number of activated carbon filter element 533a can be one, or two or more. Similarly, the number of carbon cloth filter element 533b can be one, or two or more. The number of high-efficiency filter elements 533c can be one, or two or more.

[0061] In this embodiment, the activated carbon filter element 533a effectively filters harmful gases (e.g., formaldehyde, benzene, sulfur dioxide, etc.), odors, and volatile organic compounds (e.g., volatile compounds in paints and detergents); the carbon cloth filter element 533b effectively filters harmful gases, odors, and particulate matter; and the high-efficiency filter element 533c effectively filters ultrafine particulate matter, allergens, bacteria, microscopic smoke particles, and odors. This effectively intercepts and filters particulate matter and / or effectively filters gases, odors, and volatile organic compounds.

[0062] Please refer to Figure 2In one embodiment of the present application, to achieve zoned and effective filtration of particles, gases, odors, and volatile organic compounds, the front filter element 531 may include at least two filter elements 534, namely a primary filter element 531a and a medium-efficiency filter element 531b, and the rear filter element 533 may include at least two or three filter elements 534, namely an activated carbon filter element 533a, a carbon cloth filter element 533b, and a high-efficiency filter element 533c. In this case, the primary filter element 531a, the medium-efficiency filter element 531b, the activated carbon filter element 533a, the carbon cloth filter element 533b, and the high-efficiency filter element 533c are arranged in sequence along the wind direction. Of course, the primary filter element 531a, the medium-efficiency filter element 531b, the carbon cloth filter element 533b, the activated carbon filter element 533a, and the high-efficiency filter element 533c can also be arranged in sequence along the wind direction; or the primary filter element 531a, the medium-efficiency filter element 531b, the carbon cloth filter element 533b, the high-efficiency filter element 533c, and the activated carbon filter element 533a can be arranged in sequence along the wind direction. In addition, since this can better meet the requirements of effectively filtering the various components to be filtered in the process exhaust gas, the number of the primary filter element 531a, the medium-efficiency filter element 531b, the activated carbon filter element 533a, the carbon cloth filter element 533b, and the high-efficiency filter element 533c can be set to one, so as to simplify the overall number of filter elements 534. In addition, the material of the primary filter element 531a, the medium efficiency filter element 531b and the high efficiency filter element 533c can be glass fiber, of course, it can also be HEPA, or steel wire. This application does not limit the material of the primary filter element 531a, the medium efficiency filter element 531b and the high efficiency filter element 533c.

[0063] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, the filter element 534 has an air inlet side 535 and an air outlet side 537 arranged back to back, and the sealing structure 55 includes a first seal 552 and a second seal 553. The first seal 552 is annular and is arranged on the air inlet side 535; the second seal 553 is annular and is arranged on the air outlet side 537. The second seal 553 and the first seal 552 on the two adjacent filter elements 534 abut against each other and cooperate to enclose a first channel 551.

[0064] The inlet side 535 is the side of the filter element 534 where air flows in. The outlet side 537 is the side of the filter element 534 where air flows out. For example, if the airflow direction of the air duct 511 is from top to bottom as described above, the inlet side 535 is the upper side of the filter element 534, and the outlet side 537 is the lower side of the filter element 534.

[0065] In this embodiment, the sealing structure 55 is configured to include a first sealing member 552 and a second sealing member 553, which are respectively disposed on the air inlet side 535 and the air outlet side 537 of the filter element 534. This allows the sealing structure 55 to be installed all at once when the filter element 534 is installed in the air duct 511, thereby improving the assembly efficiency of the purifier 50. Of course, the present application is not limited to this. In other embodiments, the sealing structure 55 may also be a sealing ring comprising multiple independent filter elements 534, each sealing ring being disposed between two adjacent filter elements 534 to enclose and form the first channel 551.

[0066] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, in the wind direction of the air duct 511, the thickness of the first sealing member 552 and the thickness of the second sealing member 553 are different.

[0067] In this embodiment, the thickness of the first seal 552 and the second seal 553 are set to be different. For example, the thickness of the first seal 552 located on the air inlet side 535 of the filter element 534 (or on the upper side of the filter element 534) is set to be greater than the thickness of the second seal 553 located on the air outlet side 537 of the filter element 534 (or on the lower side of the filter element 534). This allows the filter element 534 to be distinguished from the air inlet side 535 and the air outlet side 537 based on the thickness of the first seal 552 and the second seal 553 during installation, thereby preventing the filter element 534 from being installed upside down. Of course, in some embodiments, the thickness of the first seal 552 located on the air inlet side 535 of the filter element 534 can also be set to be less than the thickness of the second seal 553 located on the air outlet side 537 of the filter element 534. In other embodiments, the thickness of the first seal 552 and the second seal 553 can also be set to be the same.

[0068] In one embodiment of the present application, the first seal 552 can be bonded to the air inlet side 535, thereby simplifying the connection between the first seal 552 and the filter element 534 and providing a larger contact area, thereby improving the stability and sealing of the connection. Similarly, the second seal 553 can be bonded to the air outlet side 537.

[0069] In one embodiment of the present application, the first seal 552 can be an annular integrated structure to achieve a one-time quick installation on the filter element 534. Of course, in other embodiments, the first seal 552 can also be a multi-segment split structure and enclosed to form a ring. For example: the first seal 552 can include four segmented bodies, each segmented body is arranged on one side of the circumference of the filter element 534. At this time, the raw material of the first seal 552 can be modularly cut into relatively small volumes to form individual segmented bodies, thereby increasing the number of times that the same raw material can be cut, thereby improving the utilization rate of the raw material. Similarly, the second seal 553 is also an annular integrated structure, or a multi-segment split structure and enclosed to form a ring.

[0070] Please refer to Figure 2 In one embodiment of the present application, the purifier 50 may further include a cyclone separator 57 . The cyclone separator 57 is disposed in the air duct 511 and is located between the air inlet 512 and the filter element 534 adjacent to the air inlet 512 .

[0071] In this embodiment, a cyclone separator 57 is further provided upstream of the filter element 534. Specifically, the cyclone separator 57 can be provided upstream of the primary filter element 531a described above. This allows the airflow to first pass through the cyclone separator 57 to undergo high-speed centrifugal separation and collection of particles entrained in the airflow before entering the filter element 534. This helps further improve the separation effect of particles and also prevents overly large particles from clogging the filter element 534.

[0072] Please refer to Figure 2 、 Figure 4 as well as Figure 5 In one embodiment of the present application, in order to improve the sealing between the cyclone separator 57 and the filter element 534, a sealing structure 55 may be further located between the cyclone separator 57 and the filter element 534. Specifically, the filter element 534 adjacent to the air inlet 512, that is, the air inlet side 535 of the primary filter element 531a described above, may also be provided with a first sealing member 552. The first sealing member 552 adjacent to the air inlet 512 abuts against the cyclone separator 57 and encloses a third channel 552a connecting the cyclone separator 57 and the filter element 534.

[0073] Furthermore, in order to prevent the thickness of the first seal 552 adjacent to the air inlet 512 from being too large, the sealing structure 55 may also include a third seal 554, which is annular and is arranged on the side of the cyclone separator 57 facing the filter element 534. The third seal 554 abuts against the first seal 552 adjacent to the cyclone separator 57, and encloses a fourth channel 554a connecting the cyclone separator 57 and the third channel 552a.

[0074] In one embodiment of the present application, the third seal 554 can be bonded to the cyclone separator 57, so that the connection between the third seal 554 and the cyclone separator 57 is simpler and has a larger contact area, which is conducive to improving the stability and sealing of the connection.

[0075] In one embodiment of the present application, the third seal 554 may be an annular, integrated structure to enable quick, one-time installation on the cyclone separator 57. Of course, in other embodiments, the third seal 554 may also comprise a multi-segmented structure that encloses a ring. For example, the third seal 554 may include four segments, each positioned on one side of the cyclone separator 57 in a circumferential direction. In this case, the raw material for the third seal 554 can be modularly cut into relatively small volumes to form the individual segments, increasing the number of cuts that can be made on the same sheet of raw material and thereby improving raw material utilization.

[0076] Of course, it should be noted that in other embodiments, the purifier 50 may not be provided with the cyclone separator 57 described above. In this case, the first sealing member 552 adjacent to the air inlet 512 abuts against the housing 51 and encloses a second passage connecting the air inlet 512 and the filter element 534, thereby achieving a seal between the filter element 534 adjacent to the air inlet 512 and the housing 51.

[0077] Please refer to Figure 2 、 Figure 4 as well as Figure 6 In one embodiment of the present application, in order to improve the sealing between the filter element 534 adjacent to the air outlet 513, that is, the high-efficiency filter element 533c introduced above and the casing 51, a second sealing member 553 is also provided on the air outlet side 537 of the filter element 534 adjacent to the air outlet 513. The second sealing member 553 adjacent to the air outlet 513 abuts against the casing 51 and encloses a fifth channel 553a connecting the air outlet 513 and the filter element 534.

[0078] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, in order to facilitate the installation of the filter element 534, the housing 51 is further provided with an installation opening 514 connected to the air duct 511, so that the filter element 534 can be installed in the air duct 511 through the installation opening 514. The installation opening 514 can be extended along the extension direction of the air duct 511.

[0079] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, the housing 51 is provided with at least two insertion slots 517 arranged side by side in the wind direction of the air duct 511 in the air duct 511, and a portion of each filter element 534 is inserted into the corresponding insertion slot 517.

[0080] When the purifier 50 described above is in normal use and the air duct 511 extends in the vertical direction relative to the ground, the mounting opening 514 can be located on the front side of the housing 51. In this case, the housing 51 can include a first sidewall 515 and a second sidewall 516 that are opposite each other in the left-right direction. At least two insertion slots 517 can be provided on only the first sidewall 515 or the second sidewall 516, each of which extends in the front-to-back direction, and at least two insertion slots 517 are arranged side by side in the vertical direction. Alternatively, at least two insertion slots 517 can be provided on both the first sidewall 515 and the second sidewall 516, with the insertion slots 517 on the second sidewall 516 corresponding to the insertion slots 517 on the first sidewall 515 in a one-to-one correspondence, thereby providing position-limiting support for the filter element 534 on opposite sides. Furthermore, the insertion slots 517 can be formed by recesses in the inner surfaces of the first sidewall 515 and the second sidewall 516. Of course, convex plates can also be provided on the inner surfaces of the first side wall 515 and the second side wall 516, and the two adjacent convex plates can be enclosed by the first side wall 515 or the second side wall 516. It can be seen that this application does not limit the structural type of the insertion slot 517. Moreover, the insertion slot 517 can extend to the installation opening 514 in the front-to-back direction, or it can be spaced apart from the installation opening 514 without extending to the installation opening 514, so as to ensure that the filter element 534 can be inserted and installed in the corresponding insertion slot 517 when it is installed in the air duct 511 through the installation opening 514.

[0081] In this embodiment, by providing an insertion slot 517 on the housing 51, the filter element 534 can be relatively simply slid and inserted into the air duct 511 from the installation port 514, thereby facilitating the installation of the filter element 534. At the same time, each filter element 534 can be supported and limited by the insertion slot 517, thereby facilitating the installation stability of each filter element 534 and avoiding pressure loss. Among them, the filter element 534 and the housing 51 can only have an abutting relationship to achieve rapid disassembly and assembly of the filter element 534. Of course, the filter element 534 can also be further connected to the housing 51 by a snap connection or a magnetic connection on the basis of the limited installation through the insertion slot 517. In addition, when the purifier 50 is provided with a cyclone separator 57 as described above, an insertion slot 517 can also be provided at the position corresponding to the cyclone separator 57 for sliding insertion of the cyclone separator 57.

[0082] Please refer to Figure 1 In one embodiment of the present application, the purifier 50 further includes a door 58 , which is connected to the housing 51 and can open and close the mounting opening 514 .

[0083] In this embodiment, the door body 58 can be used to isolate and protect components such as the filter element 534 located in the air duct 511, and at the same time, the aesthetic appearance of the purifier 50 can be improved. The door body 58 can be rotatably connected to one of the first side wall 515 and the second side wall 516 of the housing 51 on one side, and the other end is connected to the other of the first side wall 515 and the second side wall 516 by a detachable connection method such as a snap connection or a magnetic connection, thereby realizing the rotation of the door body 58 to open and close the installation port 514. Of course, the door body 58 can also be slidably connected to the housing 51 to open and close the installation port 514 by sliding the door body 58. Alternatively, at least two opposite sides of the door body 58 are detachably connected to the housing 51 by a connection method such as a snap connection or a magnetic connection.

[0084] Please refer to Figure 1 or Figure 2 In one embodiment of the present application, the purifier 50 further includes a moving wheel 59, which is provided on the housing 51. At this time, by providing the moving wheel 59 at the bottom of the housing 51, the purifier 50 can be easily moved.

[0085] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application description and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A purifier, characterized in that: include: a housing, the housing being provided with an air duct and an air inlet and an air outlet communicating with the air duct; A filter element assembly is provided in the air duct, the filter element assembly comprising a front filter element component and a rear filter element component sequentially arranged along the airflow direction of the air duct, the front filter element component and the rear filter element component each comprising at least one filter element, and the filter pores of the filter element in the front filter element component are larger than the filter pores of the filter element in the rear filter element component; as well as The sealing structure is located at least between each two adjacent filter elements and is in a ring shape to enclose and form a first channel communicating with the two adjacent filter elements.

2. The purifier according to claim 1, wherein The filter element has an air inlet side and an air outlet side disposed back to back, and the sealing structure includes: a first sealing member, the first sealing member being in a ring shape and being provided on the intake side; and The second sealing member is in a ring shape and is provided on the air outlet side. The second sealing members on two adjacent filter elements abut against the first sealing member and cooperate to enclose and form the first channel.

3. The purifier according to claim 2, characterized in that In the wind direction of the air duct, the thickness of the first sealing member and the thickness of the second sealing member are different; and / or, the first sealing member is bonded to the air intake side; and / or, the second sealing member is bonded to the air outlet side; And / or, the first sealing member is an annular integral structure, or a multi-segmented structure formed into an annular shape; And / or, the second sealing member is an annular integral structure, or a multi-segmented split structure forming an annular shape; And / or, the sealing structure is made of foam.

4. The purifier according to claim 2, characterized in that The first sealing member is provided on the air inlet side of the filter element adjacent to the air inlet, and the first sealing member adjacent to the air inlet abuts against the housing and encloses to form a second channel connecting the air inlet and the filter element; or, The purifier also includes a cyclone separator, which is arranged in the air duct and located between the air inlet and the filter element adjacent to the air inlet; the air inlet side of the filter element adjacent to the air inlet is provided with the first seal, and the first seal adjacent to the air inlet abuts against the cyclone separator, and encloses a third channel connecting the cyclone separator and the filter element.

5. The purifier according to claim 4, characterized in that When the purifier further includes a cyclone separator, the sealing structure further includes a third sealing member; The third seal is annular and is provided on a side of the cyclone separator facing the filter element. The third seal abuts against the first seal adjacent to the cyclone separator and encloses a fourth channel connecting the cyclone separator and the third channel.

6. The purifier according to claim 2, wherein: The second sealing member is provided on the air outlet side of the filter element adjacent to the air outlet. The second sealing member adjacent to the air outlet abuts against the housing and encloses to form a fifth channel connecting the air outlet and the filter element.

7. The purifier according to any one of claims 1 to 6, characterized in that: The front filter element component includes at least one of a primary filter element and a medium filter element; And / or, the rear filter element component includes at least one of an activated carbon filter element, a carbon cloth filter element and a high-efficiency filter element.

8. The purifier according to claim 7, characterized in that The front filter element includes a primary filter element and a medium filter element, and the rear filter element includes an activated carbon filter element, a carbon cloth filter element and a high-efficiency filter element; The primary filter element, the medium-efficiency filter element, the activated carbon filter element, the carbon cloth filter element and the high-efficiency filter element are arranged in sequence along the wind direction of the air duct.

9. The purifier according to any one of claims 1 to 6, characterized in that: The housing is provided with an installation opening communicating with the air duct, and the installation opening is opposite to the filter element assembly; The housing is provided with at least two insertion slots arranged side by side in the wind direction of the air duct in the air duct, and a portion of each filter element is inserted into the corresponding insertion slot.

10. A laser processing system, characterized in that: include: A laser processing device, comprising a body and a laser head, wherein the body is provided with a processing chamber and an exhaust port communicating with the processing chamber; and The purifier according to any one of claims 1 to 9, wherein the purifier is arranged outside the body, and the air inlet of the purifier is connected to the exhaust port; or the purifier is arranged inside the exhaust port; Alternatively, the purifier is disposed in the processing chamber, and the gas outlet of the purifier is connected to the exhaust port.

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