Filtering device and pressing system

Abstract

The utility model relates to a filtering device and a pressing system. The filtering device comprises a box body and a cooling filtering module, a containing cavity is defined by the inner surface of the box body; an air inlet hole and an air outlet hole are formed in the box body, and both the air inlet hole and the air outlet hole communicate with the containing cavity; the cooling and filtering module is arranged in the accommodating cavity and divides the accommodating cavity into a first chamber and a second chamber which are arranged along a first direction; the air inlet hole is used for being connected with a pressing space of the hot press, so that air in the pressing space can enter the first cavity through the air inlet hole, and flows into the second cavity after being condensed and filtered by the cooling and filtering module; the air outlet is used for being connected with a vacuum pump so that the vacuum pump can pump out air in the second cavity through the air outlet. According to the utility model, when the cooling and filtering module is used for cooling the gas, water vapor and the like in the gas can be condensed to form liquid drops, so that impurities such as chlorides and the like in the gas can be condensed in the liquid drops, and the impurities such as chlorides and the like in the gas can be filtered.

Description

Technical Field

[0001] This utility model belongs to the field of hot press technology, and in particular relates to a filtration device and a pressing system. Background Technology

[0002] In the PCB (Printed Circuit Board) manufacturing process, thermoforming is a crucial step. Thermoforming is a process that uses a high-temperature, low-vacuum environment to press resin materials and copper foil into a specific shape.

[0003] During the hot pressing process, a vacuum pump is needed to evacuate the pressing space of the hot press used to place the resin material and copper foil to ensure the quality of the hot pressing process.

[0004] However, during this process, the resin material generates certain volatiles, which often contain impurities such as chlorides. During operation, these impurities can enter the vacuum pump through the compression space, adversely affecting its operation. For example, chlorides and other impurities frequently clog the vacuum pump's filter element, causing it to malfunction and requiring frequent filter element replacements, increasing maintenance costs. Furthermore, the accumulation of chlorides and other impurities on the filter element reduces the vacuum pump's efficiency; finally, these impurities also shorten the vacuum pump's lifespan. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in the prior art, when a hot press is working, impurities such as chloride in the pressing space will enter the vacuum pump, thus adversely affecting the operation of the vacuum pump. This utility model provides a filtration device and a pressing system.

[0006] To solve the above-mentioned technical problems, this utility model provides a filtration device, including a housing and a cooling filtration module; the inner surface of the housing forms a receiving cavity; the housing is provided with an air inlet and an air outlet, both of which communicate with the receiving cavity; the cooling filtration module is disposed in the receiving cavity and divides the receiving cavity into a first chamber and a second chamber arranged along a first direction; the air inlet is used to connect to the pressing space of a hot press, so that gas in the pressing space can enter the first chamber through the air inlet; the cooling filtration module is used to condense impurities in the gas in the first chamber and filter the gas before it flows into the second chamber; the air outlet is used to connect to a vacuum pump, so that the vacuum pump can extract gas from the second chamber through the air outlet.

[0007] Optionally, the cooling filter module includes a support assembly and a filter assembly; the support assembly is located within the receiving cavity and divides the receiving cavity into a first chamber and a second chamber; the support assembly is provided with an airflow channel that passes through the support assembly along the first direction; the filter assembly is detachably mounted on the support assembly and is used to condense and filter impurity gases.

[0008] Optionally, the support assembly includes a first support plate and a second support plate, at least one of which is detachably connected to the housing; the first support plate and the second support plate are spaced apart within the receiving cavity along the first direction; the first support plate, the second support plate, and the housing enclose an installation space; the first support plate is provided with at least one first flow hole, which penetrates the first support plate along the first direction; the second support plate is provided with at least one second flow hole, which penetrates the second support plate along the first direction; the filter assembly is disposed within the installation space for condensing and filtering impurity gases entering the installation space.

[0009] Optionally, the support assembly further includes a connector; the first support plate is connected to the housing, and the second support plate is detachably connected to the first support plate via the connector; the first support plate and the second support plate clamp the filter assembly.

[0010] Optionally, the filter assembly includes a plurality of spheres, all of which are located within the installation space, and the spheres are used to condense and filter impurity gases entering the installation space.

[0011] Optionally, the cross-section of the first flow passage is polygonal or elliptical; and / or, the cross-section of the second flow passage is polygonal or elliptical.

[0012] Optionally, the housing includes a first housing and a second housing, which are detachably connected and form the receiving cavity after being connected; the cooling filter module is detachably connected to the first housing or the second housing.

[0013] Optionally, the air inlet is disposed on the first housing, and the air outlet is disposed on the second housing; and / or, the first housing and the second housing are arranged along the first direction.

[0014] Optionally, the air inlet and the air outlet are located on opposite sides of the cooling filter module; the first direction is the up-down direction; the first chamber is located below the second chamber; and the air inlet is located below the air outlet.

[0015] Optionally, the housing is further provided with a drain hole, which extends from the outer surface of the housing to the inner surface of the housing; the drain hole is located on the side of the cooling filter module away from the second chamber; the drain hole is used to connect a drain valve so as to control the connection and disconnection of the receiving cavity from the external space through the drain hole.

[0016] To solve the above-mentioned technical problems, this utility model provides a pressing system, including a hot press, a vacuum pump, an inlet pipe, an exhaust pipe, and a filter device as described in any one of the above. The hot press is connected to the inlet port through the inlet pipe so that gas in the pressing space of the hot press can enter the first chamber through the inlet pipe. The vacuum pump is connected to the outlet port through the exhaust pipe so that the vacuum pump can extract gas from the second chamber through the exhaust pipe.

[0017] Optionally, the inner surface of the housing includes a first end face, a second end face, and an inner side face; the first end face and the second end face are spaced apart on both sides of the cooling filter module along the first direction; the inner side face intersects the first end face and the second end face respectively; the air inlet pipe extends from the air inlet hole into the receiving cavity, and the opening of one end of the air inlet pipe extending out of the receiving cavity faces the inner side face.

[0018] Optionally, the pressing system further includes a control valve connected to the air inlet pipe for controlling the opening and closing of the receiving cavity from the air inlet pipe and the pressing space.

[0019] In the filtration device and pressing system provided in this embodiment of the utility model, the gas entering the first chamber from the pressing space has a high temperature. When the gas flows into the second chamber, it passes through the cooling filter module and is cooled down by the cooling filter module. In this way, water vapor and other substances in the gas will condense into droplets. At this time, impurities such as chloride in the gas will condense in these droplets, thereby achieving the filtration of impurities such as chloride in the gas. Attached Figure Description

[0020] Figure 1 This is a front view of a filtering device provided in an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Sectional view along the AA direction;

[0022] Figure 3 This is a top view of a filtering device provided in an embodiment of the present invention;

[0023] Figure 4 yes Figure 3 Cross-sectional view along the BB direction;

[0024] Figure 5 This is an enlarged view of the support component of the filter device provided in one embodiment of the present invention.

[0025] The reference numerals in the accompanying drawings are as follows:

[0026] 10. Filter device; 20. Drain valve; 30. Inlet pipe; 40. Exhaust pipe; 50. Control valve;

[0027] 1. Housing; 11. Air inlet; 12. Air outlet; 13. Receiving cavity; 131. First chamber; 132. Second chamber; 14. First shell; 15. Second shell; 16. Flange structure; 17. Drain hole; 18. First end face; 19. Second end face; 1a. Inner surface;

[0028] 2. Cooling filter module; 21. Support assembly; 211. First support plate; 212. Second support plate; 213. First flow hole; 214. Second flow hole; 215. Connector; 22. Filter assembly; 221. Sphere; 23. Airflow channel; 24. Installation space;

[0029] 3. Support frame; 31. Support leg. Detailed Implementation

[0030] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] like Figures 1 to 4As shown, in one embodiment, the filtration device 10 includes a housing 1 and a cooling filtration module 2; the housing 1 is provided with an air inlet 11 and an air outlet 12, and the housing 1 has a receiving cavity 13. The air inlet 11 and the air outlet 12 are both connected to the receiving cavity 13. Specifically, the air inlet 11 and the air outlet 12 both extend from the outer surface of the housing 1 to the inner surface of the housing 1, wherein the inner surface of the housing 1 encloses the receiving cavity 13; the cooling filtration module 2 is disposed in the receiving cavity 13 and divides the receiving cavity 13 into sections arranged along a first direction. First chamber 131 and second chamber 132; air inlet 11 is used to connect to the pressing space of the hot press, so that the gas in the pressing space of the hot press can enter the first chamber 131 through air inlet 11; cooling filter module 2 is used to condense impurities in the gas in the first chamber 131 and filter the gas before it flows into the second chamber 132; air outlet 12 is used to connect to the vacuum pump, so that the vacuum pump can extract the gas in the second chamber 132 through air outlet 12; cooling filter module 2 is used to cool the gas passing through it.

[0032] The condensation of impurities in the gas within the first chamber 131 by the cooling filter module 2 refers to the condensation of impurities in the gas passing through it. When the vacuum pump extracts gas from the second chamber 132, the gas in the compression space enters the first chamber 131, thereby achieving vacuuming of the compression space. Simultaneously, the gas in the first chamber 131 passes through the cooling filter module 2 before entering the second chamber 132. Thus, the gas entering the vacuum pump from the compression space first undergoes chloride filtration through the filter device 10 to reduce the amount of chloride flowing into the vacuum pump. Specifically, the gas entering the first chamber 131 from the compression space has a higher temperature. When this gas flows into the second chamber 132, it passes through the cooling filter module 2 and is cooled down. This causes water vapor and other impurities in the gas to condense into droplets. At this time, impurities such as chloride in the gas condense in these droplets, thus the cooling filter module 2 achieves condensation filtration of impurities in the gas.

[0033] Furthermore, the cooling filter module 2 divides the receiving cavity 13 into a first chamber 131 and a second chamber 132. This ensures that gas flowing from the first chamber 131 into the second chamber 132 must pass through the cooling filter module 2, thereby improving the contact effect between the gas flowing into the second chamber 132 and the cooling filter module 2. This allows more gas to be cooled by the cooling filter module 2, reducing the content of impurities such as chlorides in the gas flowing into the second chamber 132. Preferably, the first chamber 131 and the second chamber 132 can be connected only through the cooling filter module 2. In this case, the gas in the first chamber 131 can only enter the second chamber 132 after passing through the cooling filter module 2.

[0034] It should be understood that since the inner surface of the housing 1 encloses and forms the receiving cavity 13, the air inlet 11 and the air outlet 12 penetrate to the inner surface of the housing 1, which means that the air inlet 11 and the air outlet 12 are both connected to the receiving cavity 13.

[0035] In addition, Figure 1 and Figure 4 Of the directions shown, the first direction is parallel to the Z-axis.

[0036] like Figure 4 As shown, in one embodiment, in the first direction, the air inlet 11 and the air outlet 12 are located on both sides of the cooling filter module 2. At this time, the air inlet 11 forms an opening in the area of ​​the inner surface of the housing 1 used to enclose and form the first chamber 131; the air outlet 12 forms an opening in the area of ​​the inner surface of the housing 1 used to enclose and form the second chamber 132.

[0037] In one embodiment, the first direction is vertical. Furthermore, the air inlet 11 is located below the air outlet 12, and the first chamber 131 is located below the second chamber 132. This facilitates the flow of gas entering the first chamber 131 from the air inlet 11 into the second chamber 132. Moreover, the condensed droplets fall under their own gravity, separating from the upward-flowing gas, thereby further reducing the chloride content in the gas flowing to the air outlet 12.

[0038] like Figure 1 , Figure 4 as well as Figure 5 As shown, in one embodiment, the cooling filter module 2 includes a support assembly 21 and a filter assembly 22. The support assembly 21 is located within the receiving cavity 13 and connected to the housing 1. The support assembly 21 divides the receiving cavity 13 into a first chamber 131 and a second chamber 132. The support assembly 21 is provided with an airflow channel 23, which extends through the support assembly 21 along a first direction. In the first direction, an air inlet 11 and an air outlet 12 are located on opposite sides of the support assembly 21. Gas entering the first chamber 131 from the air inlet 11 passes through the airflow channel 23 and then enters the second chamber 132. The filter assembly 22 is detachably mounted on the support assembly 21 and is used for condensing and filtering impurity gases. Impurity gases include water vapor and impurities such as chlorides in the gas.

[0039] The first chamber 131 and the second chamber 132 are connected through the cooling filter module 2, which actually means that the first chamber 131 and the second chamber 132 are connected through the airflow channel 23.

[0040] During operation, when gas enters the receiving cavity 13 through the air inlet 11 and flows towards the air outlet 12 (i.e., gas flows from the first chamber 131 to the second chamber 132), it first passes through the airflow channel 23 and then through the support assembly 21 before flowing towards the air outlet 12. Water vapor and other condensed droplets in the gas adhere to the filter assembly 22. The filter assembly 22 can then be removed from the support assembly 21 for cleaning. After cleaning, it can be reinstalled on the support assembly 21. This allows for the reuse of the filter assembly 22, thereby reducing the operating cost of the cooling filter module 2.

[0041] like Figure 4 and Figure 5 As shown, in one embodiment, the support assembly 21 includes a first support plate 211 and a second support plate 212; the first support plate 211 and the second support plate 212 are spaced apart along a first direction within the receiving cavity 13; the first support plate 211, the second support plate 212, and the housing 1 enclose an installation space 24, wherein at least a portion of the first support plate 211, the second support plate 212, and the housing 1 forms a sidewall of the installation space 24; the first support plate 211 is provided with at least one first flow hole 213, which penetrates the first support plate 211 along the first direction; the second support plate 212 is provided with at least one second flow hole 214, which penetrates the second support plate 212 along the first direction; at least a portion of the installation space 24, the first flow hole 213, and the second flow hole 214 communicate to form an airflow channel 23. A filter assembly 22 is disposed within the installation space 24 for condensing and filtering impurity gases entering the installation space 24.

[0042] The filter assembly 22 can be confined within the installation space 24 by the side wall of the installation space 24, preventing it from entering other positions in the receiving cavity 13. Furthermore, the support assembly 21, by cooperating with the housing 1, can constrain the position of the filter assembly 22, thus simplifying its structure.

[0043] Furthermore, at least one of the first support plate 211 and the second support plate 212 is detachably connected to the housing 1, which facilitates the removal of the filter assembly 22 from the installation space 24 and the placement of the filter assembly 22 into the installation space 24. The detachable connection of at least one of the first support plate 211 and the second support plate 212 to the housing 1 also allows for the detachable connection of the support assembly 21 to the housing 1.

[0044] In addition, the first chamber 131 is located on the side of the first support plate 211 away from the second support plate 212, and the second chamber 132 is located on the side of the second support plate 212 away from the first support plate 211.

[0045] In one embodiment, the cross-section of the receiving cavity 13 is circular, the first support plate 211 is a circular plate, the second support plate 212 is also a circular plate, the diameter of the first support plate 211 and the second support plate 212 can both be equal to the diameter of the receiving cavity 13, and the first support plate 211, the second support plate 212 and the receiving cavity 13 can be coaxially arranged.

[0046] In one embodiment, the number of first flow holes 213 is multiple, where "multiple" means two or more, and the meaning of "multiple" is the same in all embodiments, and will not be repeated hereafter. In addition, the first support plate 211 can be a mesh structure, in which case the first support plate 211 can be a filter screen.

[0047] In one embodiment, there are multiple second flow holes 214. Alternatively, the second support plate 212 can be a mesh structure, in which case the second support plate 212 can be a filter screen.

[0048] like Figure 4 and Figure 5 As shown, in one embodiment, the support assembly 21 further includes a connector 215; the first support plate 211 is connected to the housing 1, and the second support plate 212 is detachably connected to the first support plate 211 via the connector 215, thereby achieving a detachable connection between the second support plate 212 and the housing 1. This eliminates the need for a corresponding structure on the housing 1 to connect the second support plate 212 and the housing 1.

[0049] The connector 215 includes a bolt and a nut. The first support plate 211 has a first through hole, and the second support plate 212 has a second through hole. The first through hole passes through the first support plate 211 along the first direction, and the second through hole passes through the second support plate 212 along the first direction. After the bolt passes through the first through hole and the second through hole, it cooperates with the nut to connect the first support plate 211 and the second support plate 212 together.

[0050] In addition, after assembly, the first support plate and the second support plate 212 can clamp the filter assembly 22, which can prevent the filter assembly 22 from shaking in the installation space 24.

[0051] Furthermore, in this embodiment, the first support plate 211 can be fixedly connected to the housing 1, and the two can be connected together by welding. Of course, in this embodiment, the first support plate 211 can also be detachably connected to the housing 1, and the two can be detachably connected together by snap-fit ​​or by means of bolts or other connecting parts 215.

[0052] In one embodiment, when the first direction is vertical, the first support plate 211 may be located below the second support plate 212. In this case, the first support plate 211 supports the filter assembly 22, and the second support plate 212 acts as a pressure plate to press the filter assembly 22 onto the first support plate 211. Of course, in other embodiments, the first support plate 211 may be located above the second support plate 212.

[0053] like Figure 4 As shown, in one embodiment, the filter assembly 22 includes multiple spheres 221, all located within the installation space 24. The spheres 221 are used to condense and filter impurity gases entering the installation space 24. The spheres 221 can be glass or ceramic spheres, etc. During operation, the temperature of the gas entering the receiving cavity 13 from the hot press is higher than the temperature of the spheres 221. When the higher-temperature gas comes into contact with the spheres 221, it is cooled, causing water vapor and other substances in the gas to condense. Simultaneously, the condensed droplets adhering to the spheres 221 easily fall off, reducing adverse effects on gas permeability. Furthermore, this facilitates the collection of droplets, making it easier to process the condensed material.

[0054] Furthermore, when the filter assembly 22 includes multiple spheres 221, each sphere 221 is independent and not connected to the others. In this case, the spheres 221 can be easily distributed evenly within the installation space 24 by the clamping and holding of the first support plate 211 and the second support plate 212, thereby facilitating the assembly of the filter device 10.

[0055] Moreover, when cleaning the filter assembly 22, the spheres 221 can be cleaned once or multiple times depending on the actual scenario. When assembling, each sphere 221 can also be placed in the installation space 24 once or multiple times, which makes it convenient to clean and install the filter assembly 22.

[0056] In one embodiment, when the filter assembly 22 is composed of multiple spheres 221, the cross-section of the first flow hole 213 is polygonal or elliptical, thereby effectively preventing the spheres 221 from clogging the first flow hole 213; and / or, the cross-section of the second flow hole 214 is polygonal or elliptical, thereby effectively preventing the spheres 221 from clogging the second flow hole 214.

[0057] When the cross-section of the first flow passage 213 is a polygon, the polygon can be a triangle, a quadrilateral, or a hexagon, etc. When the cross-section of the second flow passage 214 is a polygon, the polygon can be a triangle, a quadrilateral, or a hexagon, etc.

[0058] In one embodiment, both the first support plate 211 and the second support plate 212 can be metal plates, and the box 1 can also be a metal box 1. This can quickly dissipate the heat on the sphere 221, avoid the sphere 221 from getting too hot, and thus improve the cooling effect on the gas.

[0059] like Figure 1 As shown, in one embodiment, the housing 1 includes a first housing 14 and a second housing 15, which are detachably connected and form a receiving cavity 13 after being connected. The cooling filter module 2 is detachably connected to the first housing 14 or the second housing 15. This allows the cooling filter module 2 to be easily removed from the installation space 24.

[0060] In one embodiment, the first housing 14 and the second housing 15 are arranged along a first direction.

[0061] In this configuration, the first housing 14 is located below the second housing 15, and the cooling filter module 2 can be connected to the first housing 14. During assembly, the first housing 14 can be placed on a supporting object such as the ground first, then the cooling filter module 2 can be installed on the first housing 14, and then the second housing 15 can be installed on the first housing 14. This facilitates the assembly of the filter device 10.

[0062] In this embodiment, a portion of the inner surface of the housing 1 is located on the first housing 14, and another portion of the inner surface of the housing 1 is located on the second housing 15. Similarly, a portion of the outer surface of the housing 1 is located on the first housing 14, and another portion of the outer surface of the housing 1 is located on the second housing 15.

[0063] In one embodiment, the first housing 14 is provided with a receiving hole, which is a blind hole. In this case, the first housing 14 can be a cylindrical structure with one end open. The second housing 15 can be a cover plate. After the second cover plate is connected to the first housing 14, it closes the opening of the receiving hole, thereby enclosing and forming the receiving cavity 13.

[0064] The first housing 14 can be a cylindrical structure with the axis of the cylinder parallel to the vertical direction. The upper surface of the cylinder is provided with a receiving hole that does not penetrate to the lower surface of the cylinder.

[0065] like Figure 1 As shown, to facilitate the connection between the first housing 14 and the second housing 15, the first housing 14 is provided with a flange structure 16, which may surround the cylinder. The second housing 15 abuts against the upper surface of the cylinder and is connected to the flange structure 16. The second housing 15 and the flange structure 16 may be connected together by bolts or the like.

[0066] Of course, the first shell 14 can also be other columnar structures, such as square columns.

[0067] like Figure 4 As shown, in one embodiment, the air inlet 11 is provided on the first housing 14 and the air outlet 12 is provided on the second housing 15, which makes the production and preparation of the housing 1 more convenient.

[0068] The air inlet 11 may be located on the upper part of the first housing 14 and extend through the side wall of the first housing 14 along a second direction. The second direction intersects the first direction, and preferably, the second direction is perpendicular to the first direction. When the first housing 14 is a cylindrical structure as described above, the air inlet 11 is located on the side wall of the cylinder and extends radially from the outer surface of the cylinder to the connecting receiving hole.

[0069] Alternatively, the vent 12 may extend through the second housing 15 along the first direction.

[0070] like Figure 4 As shown, in one embodiment, the housing 1 is further provided with a drain hole 17, which extends from the outer surface of the housing 1 to the inner surface of the housing 1. The drain hole 17 is located on the side of the cooling filter module 2 opposite to the second chamber 132. The drain hole 17 is used to connect to a drain valve 20, so as to control the connection and disconnection between the receiving cavity 13 and the external space through the drain hole 17. The drain hole 17 is used to drain liquids and other substances formed after condensation. When the receiving cavity 13 is connected to the external space through the drain hole 17, the liquid in the receiving cavity 13 can flow from the drain hole 17 to the external space, thereby realizing the discharge of the housing 1. When the receiving cavity 13 is disconnected from the external space through the drain hole 17, the liquid in the receiving cavity 13 cannot flow from the drain hole 17 to the external space.

[0071] In one embodiment, the drain valve 20 may be installed on the outer surface of the housing 1; the drain valve 20 may be a mechanical valve capable of manual control or a solenoid valve capable of automatic control. Furthermore, the specific configuration of the drain valve 20 may be based on existing technology, which will not be elaborated upon in this embodiment. Additionally, the drain valve 20 may also be part of the pressing system described below.

[0072] In one embodiment, the drain hole 17 is disposed on the first housing 14 and located below the receiving hole. In this case, the drain hole 17 is disposed on the bottom surface of the receiving hole and extends through the first housing 14 along a first direction. Alternatively, the drain valve 20 may also be connected to the first housing 14.

[0073] like Figure 4 As shown, in one embodiment, the filter device 10 further includes a support frame 3, and the housing 1 is connected to the support frame 3. In use, the support frame 3 can be placed on a supporting object such as the ground.

[0074] In one embodiment, the support frame 3 includes multiple support legs 31, each of which is connected to the housing 1 and protrudes downward from the housing 1. Subsequently, the lower end of each support leg 31 contacts the ground or other supporting object to separate the housing 1 from the supporting object by a certain distance, thereby facilitating the operation of the drain valve 20 installed on the housing 1.

[0075] like Figure 1 and Figure 4 As shown, in one embodiment, the pressing system includes a hot press, a vacuum pump, an inlet pipe 30, an exhaust pipe 40, and a filter device 10 as described above; the hot press is connected to an inlet port 11 through the inlet pipe 30 so that gas in the pressing space of the hot press can enter the first chamber 131 through the inlet pipe 30; the vacuum pump is connected to an outlet port 12 through the exhaust pipe 40 so that the vacuum pump can extract gas from the second chamber 132 through the exhaust pipe 40.

[0076] The intake pipe 30 can be a part of the filter device 10; in this case, the intake pipe 30 can be detachably connected to the housing 1 or fixedly connected; the intake pipe 30 can also be detachably connected to the hot press. Alternatively, the intake pipe 30 can also be a part of the hot press; in this case, the intake pipe 30 can be detachably connected to the hot press or fixedly connected; the intake pipe 30 can also be detachably connected to the housing 1. Alternatively, the intake pipe 30 can be a part independent of the hot press and the filter device 10; in this case, the intake pipe 30 can be detachably connected to both the hot press and the housing 1.

[0077] The exhaust pipe 40 can be a part of the filter device 10; in this case, the exhaust pipe 40 can be detachably connected to the housing 1 or fixedly connected; the exhaust pipe 40 is detachably connected to the vacuum pump. Alternatively, the exhaust pipe 40 can also be a part of the vacuum pump; in this case, the exhaust pipe 40 can be detachably connected to the vacuum pump or fixedly connected; the exhaust pipe 40 is detachably connected to the housing 1. Alternatively, the exhaust pipe 40 can be a component independent of the vacuum pump and the filter device 10; in this case, the exhaust pipe 40 is detachably connected to both the vacuum pump and the housing 1.

[0078] Alternatively, the vacuum pump can be a pump with a built-in filter. During operation, the gas extracted from the compression space is first filtered through the filter device 10 before entering the filter built into the vacuum pump.

[0079] like Figure 4As shown, in one embodiment, the inner surface of the housing 1 includes a first end face 18, a second end face 19, and an inner side face 1a; the first end face 18 and the second end face 19 are spaced apart along a first direction on both sides of the cooling filter module 2; the inner side face 1a intersects the first end face 18 and the second end face 19 respectively; the air inlet pipe 30 extends from the air inlet hole 11 into the receiving cavity 13, and the opening of the end of the air inlet pipe 30 extending out of the receiving cavity 13 faces the inner side face 1a. This can effectively prevent condensed liquids from entering the air inlet pipe 30.

[0080] When the housing 1 includes a first housing 14 and a second housing 15, the first end face 18 can be the bottom surface of the receiving hole, the inner side face 1a can be the surface used to enclose and form the receiving hole, and the second end face 19 is the surface of the second housing 15 facing the receiving hole.

[0081] In addition, the air inlet 11 has an opening on the inner side 1a, the air outlet 12 may have an opening on the second end, and the exhaust hole 17 has an opening on the first end face 18.

[0082] The phrase "the intake pipe 30 extends into the receiving cavity 13" actually means that the intake pipe 30 extends into the first chamber 131.

[0083] like Figure 4 As shown, in one embodiment, the pressing system further includes a control valve 50 connected to the air inlet pipe 30, used to control the connection and disconnection of the receiving cavity 13 from the air inlet pipe 30 and the pressing space. When the receiving cavity 13 is connected to the pressing space from the air inlet pipe 30, gas in the pressing space can flow from the air inlet pipe 30 into the receiving cavity 13; when the receiving cavity 13 is disconnected from the pressing space from the air inlet pipe 30, gas in the pressing space cannot flow from the air inlet pipe 30 into the receiving cavity 13.

[0084] Furthermore, the control valve 50 can be a mechanical valve capable of manual control or a solenoid valve capable of automatic control. The specific configuration of the control valve 50 can be based on existing technology, which will not be elaborated upon in this embodiment.

[0085] It should be noted that the connection between the receiving cavity 13 and the pressing space from the air inlet pipe 30 actually means that the first chamber 131 is connected to the pressing space from the air inlet pipe 30; the disconnection between the receiving cavity 13 and the pressing space from the air inlet pipe 30 actually means that the first chamber 131 is disconnected from the pressing space from the air inlet pipe 30.

[0086] It should be understood that the above-mentioned settings can also be replaced in other ways, such as:

[0087] In other embodiments, the cooling filter module 2 can also employ other configurations. For example, the cooling filter module 2 may include a condenser tube containing a refrigerant such as chilled water. Additionally, the condenser tube can be connected to a refrigeration device outside the housing 1. The refrigerant can circulate between the condenser tube and the refrigeration device, which cools the refrigerant to maintain a low temperature within the condenser tube that enters the containment cavity 13, thereby improving the cooling effect on the gas within the containment cavity 13. The refrigeration device, condenser tube, and refrigerant are all existing technologies, and will not be described in detail here.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filtration device, characterized in that, Including the housing and cooling filter module; The inner surface of the box encloses and forms a receiving cavity; The housing is provided with an air inlet and an air outlet, both of which are connected to the receiving cavity; The cooling filter module is disposed in the receiving cavity, and divides the receiving cavity into a first chamber and a second chamber arranged along a first direction; The air inlet is used to connect to the pressing space of the hot press, so that the gas in the pressing space can enter the first chamber through the air inlet. The cooling filter module is used to condense impurities in the gas in the first chamber and filter the gas before it flows into the second chamber. The vent is used to connect to a vacuum pump so that the vacuum pump can extract gas from the second chamber through the vent.

2. The filtration device according to claim 1, characterized in that, The cooling and filtration module includes a support assembly and a filtration assembly; The support assembly is located within the receiving cavity and divides the receiving cavity into a first chamber and a second chamber; The support component is provided with an airflow channel, which passes through the support component along the first direction; The filter assembly is detachably mounted on the support assembly and is used for condensing and filtering impurity gases.

3. The filtration device according to claim 2, characterized in that, The support assembly includes a first support plate and a second support plate, at least one of the first support plate and the second support plate being detachably connected to the housing; The first support plate and the second support plate are spaced apart within the receiving cavity along the first direction; the first support plate, the second support plate, and the box body enclose and form an installation space; The first support plate is provided with at least one first flow hole, and the first flow hole penetrates the first support plate along the first direction; The second support plate is provided with at least one second flow hole, and the second flow hole penetrates the second support plate along the first direction; The filter assembly is disposed within the installation space and is used to condense and filter impurity gases entering the installation space.

4. The filtration device according to claim 3, characterized in that, The support assembly also includes connectors; The first support plate is connected to the housing, and the second support plate is detachably connected to the first support plate via the connector; The first support plate and the second support plate clamp the filter assembly.

5. The filtration device according to claim 3, characterized in that, The filter assembly includes multiple spheres, all of which are located within the installation space. The spheres are used to condense and filter impurity gases entering the installation space.

6. The filtration device according to claim 5, characterized in that, The cross-section of the first flow passage is polygonal or elliptical; and / or, the cross-section of the second flow passage is polygonal or elliptical.

7. The filtration device according to any one of claims 1 to 6, characterized in that, The enclosure includes a first shell and a second shell, which are detachably connected and, when connected, form the receiving cavity. The cooling filter module is detachably connected to the first housing or the second housing.

8. The filtration device according to claim 7, characterized in that, The air inlet is disposed on the first housing, and the air outlet is disposed on the second housing; and / or, The first housing and the second housing are arranged along the first direction.

9. The filtration device according to claim 1, characterized in that, In the first direction, the air inlet and the air outlet are respectively located on both sides of the cooling filter module; The first direction is the up-down direction; The first chamber is located below the second chamber; The air inlet is located below the air outlet.

10. The filtration device according to claim 1, characterized in that, The box is also provided with a drain hole, which extends from the outer surface of the box to the inner surface of the box. The drain hole is located on the side of the cooling filter module opposite to the second chamber; The drain hole is used to connect to a drain valve so that the connection and disconnection of the receiving cavity from the external space can be controlled by the drain valve.

11. A pressing system, characterized in that, Includes a hot press, a vacuum pump, an air inlet pipe, an exhaust pipe, and a filtration device as described in any one of claims 1 to 10; The hot press is connected to the air inlet via the air inlet pipe, so that the gas in the pressing space of the hot press can enter the first chamber through the air inlet pipe; The vacuum pump is connected to the outlet port through the exhaust pipe so that the vacuum pump can extract gas from the second chamber through the exhaust pipe.

12. The pressing system according to claim 11, characterized in that, The inner surface of the housing includes a first end face, a second end face, and an inner side face; The first end face and the second end face are spaced apart on both sides of the cooling filter module along the first direction; The inner surfaces intersect the first end face and the second end face, respectively; The air intake pipe extends from the air intake hole into the receiving cavity, with the opening at one end of the air intake pipe extending out of the receiving cavity facing the inner side.

13. The pressing system according to claim 11, characterized in that, The pressing system also includes a control valve connected to the air inlet pipe for controlling the opening and closing of the receiving cavity from the air inlet pipe and the pressing space.

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