Filter assembly and filter

Abstract

The filter assembly comprises a shell and a filter element unit, the filter element unit is arranged in the shell, a pre-filtering slurry cavity is formed between the outer wall of the filter element unit and the inner wall of the shell, a post-filtering slurry cavity is formed in the filter element unit, and the pre-filtering slurry cavity is communicated with the post-filtering slurry cavity. The shell is provided with a shell discharging channel which is communicated with the pre-filtering slurry cavity and is used for discharging pre-filtering slurry in the pre-filtering slurry cavity, and the filter element unit is provided with a filter element discharging channel which is communicated with the post-filtering slurry cavity and is used for discharging post-filtering slurry in the post-filtering slurry cavity. According to the filter assembly provided by the utility model, the pre-filtration slurry in the pre-filtration slurry cavity can be discharged along the shell discharge channel, and the post-filtration slurry in the post-filtration slurry cavity can be discharged along the filter element discharge channel, so that the dual recovery of the pre-filtration slurry and the post-filtration slurry is realized, and the recovery rate of the slurry is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field, concretely relates to a filter assembly and filter. BACKGROUND

[0002] The filter used in the lithium electricity field is mainly based on the physical filtration principle, utilizes specific filter medium to intercept and separate solid particles, impurities and harmful substances in the slurry, thereby improves the safety, stability of battery, prolongs the life of battery, after the filter reaches the service life, no matter from the resource recycling or environmental protection aspect to consider, the recovery of lithium battery slurry has important significance, along with the rapid development of new energy automobile field and the improvement of people's environmental protection consciousness, the recovery industry of lithium battery slurry will welcome more broad development prospect.

[0003] The existing filter assembly in the lithium electricity field includes mutually fixed upper shell and lower shell, the upper shell is provided with exhaust pipe, the exhaust pipe adopts bolt sealing, the upper shell and the lower shell have filter cavity, a single filter core is fixed in the filter cavity, and the filter core is installed on the lower shell, the filter core has filter core cavity, the lower shell is provided with feed inlet connected with the filter cavity and discharge connector connected with the filter core cavity, the discharge connector is controlled by the on-off of the one-way valve, the lower shell is further provided with discharge channel, after the filter assembly reaches the service life, the unfiltered slurry in the filter cavity can be discharged and recovered by opening the discharge channel, since the opening and closing of the one-way valve controlling the discharge connector are usually automatically controlled by the control module according to the instruction, under the condition of power failure, the one-way valve is not easy to open manually, therefore, after the filter assembly is taken out, the one-way valve is not easy to open manually due to power failure, to discharge the filtered slurry in the filter core cavity, the discharge connector needs to be damaged and the one-way valve needs to be removed, which brings inconvenience to the recovery of the filtered slurry, and the filtered slurry is usually treated together with the filter assembly, and cannot be recovered.

[0004] In view of the above-mentioned defects, it is necessary to design a filter assembly and filter. INVENTION CONTENTS

[0005] Therefore, the technical problem to be solved by the utility model is the design of the filter assembly in the prior art, which causes the inconvenience of recovering the filtered slurry, thereby providing a filter assembly and filter.

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0007] A filter assembly comprises a housing and a filter core unit, the filter core unit is arranged in the housing, an outer wall of the filter core unit and an inner wall of the housing form a pre-filter slurry cavity, the filter core unit has a post-filter slurry cavity, the housing is provided with a housing discharge channel communicating with the pre-filter slurry cavity, for discharging pre-filter slurry in the pre-filter slurry cavity, the filter core unit is provided with a filter core discharge channel communicating with the post-filter slurry cavity, for discharging post-filter slurry in the post-filter slurry cavity.

[0008] Further, the housing discharge channel and the filter core discharge channel are detachably sealed by a shared plug.

[0009] Further, the housing discharge channel is arranged on the top of the housing, and the filter core discharge channel is arranged on the top cover of the filter core unit.

[0010] Further, the housing discharge channel and the filter core discharge channel are arranged opposite to each other.

[0011] Further, it further comprises an exhaust plug, the shared plug is recessed inwardly at the end face of the filter core unit to form a fitting groove, the exhaust plug seals the fitting groove, the shared plug is provided with an air channel, and the air channel respectively communicates with the fitting groove and the pre-filter slurry cavity.

[0012] Further, the bottom of the housing is provided with an inlet channel communicating with the pre-filter slurry cavity, the bottom of the housing is further connected with a discharge connector, the bottom cover of the filter core unit is provided with a filter core discharge channel, and the filter assembly further comprises a first one-way valve, the first one-way valve is arranged in the filter core discharge channel, and a first valve core of the first one-way valve blocks the discharge connector in a discharging direction under the action of a first compression spring.

[0013] Further, the housing discharge channel and the filter core discharge channel are respectively detachably sealed by a housing plug and a filter core plug.

[0014] Further, the filter core plug comprises a second one-way valve and a discharge connector communicating with the filter core discharge channel, the discharge connector is detachably connected with the housing, and a second valve core of the second one-way valve blocks the discharge connector in a discharging direction under the action of a second compression spring.

[0015] Further, the housing is provided with an extension pipe, the extension pipe is connected with a mounting hole on the bottom cover of the filter core unit in a sleeved mode, the extension pipe communicates with the post-filter slurry cavity, the filter core discharge channel is formed in the extension pipe, the discharge connector is detachably connected with the extension pipe in a sleeved mode, and the second one-way valve is arranged in the extension pipe.

[0016] The technical scheme of the utility model has the following advantages:

[0017] 1.The filter assembly provided by the utility model, comprising a shell and a filter core unit, the filter core unit is arranged in the shell, a front slurry cavity is formed between the outer wall of the filter core unit and the inner wall of the shell, the filter core unit is provided with a rear slurry cavity, a shell discharge channel is formed in the shell and is communicated with the front slurry cavity, and is used for discharging the front slurry in the front slurry cavity; the filter core unit is provided with a filter core discharge channel communicated with the rear slurry cavity, and is used for discharging the rear slurry in the rear slurry cavity; in this way, the front slurry in the front slurry cavity can be discharged along the shell discharge channel, the rear slurry in the rear slurry cavity can be discharged along the filter core discharge channel, the front slurry and the rear slurry can be recycled simultaneously, and the recovery rate of the slurry is improved.

[0018] 2.The filter assembly provided by the utility model, the shell discharge channel and the filter core discharge channel are detachably sealed by a shared plug, and the front slurry and the rear slurry can be discharged simultaneously by pulling out the shared plug, so that the operation is simple.

[0019] 3.The filter assembly provided by the utility model, the filter core plug comprises a second one-way valve and a discharge connector communicated with the filter core discharge channel, the discharge connector is detachably connected with the shell, and the second valve core of the second one-way valve is blocked in the discharge direction under the action of the second compression spring; the discharge connector is designed in the form of detachable connection with the shell, the front slurry and the rear slurry can be recycled simultaneously under the premise of reducing the design changes of other parts of the filter assembly.

[0020] A filter comprising the filter assembly.

[0021] The technical scheme of the utility model has the following advantages:

[0022] The filter provided by the utility model has all the advantages of the filter assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0024] Figure 1 It is a front view schematic diagram of the filter assembly of the first embodiment in the utility model embodiment one;

[0025] Figure 2 It is a side view schematic diagram of the filter assembly of the first embodiment in the utility model embodiment one;

[0026] Figure 3 It isFigure 2 Fig. 5 is a cross-sectional view along line A-A of Fig. 4;

[0027] Figure 4 Fig. 6 is a cross-sectional view along line B-B of Fig. 4; Figure 3 Fig. 7 is an enlarged view of portion C in Fig. 6;

[0028] Figure 5 Fig. 8 is an enlarged view of portion D in Fig. 6; Figure 3 Fig. 9 is an enlarged view of portion E in Fig. 6;

[0029] Figure 6 Fig. 10 is a perspective view of a filter assembly according to a second embodiment of the utility model in the first embodiment;

[0030] Figure 7 Fig. 11 is a front view of the filter assembly according to the second embodiment of the utility model in the first embodiment;

[0031] Figure 8 Fig. 12 is a side view of the filter assembly according to the second embodiment of the utility model in the first embodiment;

[0032] Figure 9 Fig. 13 is a cross-sectional view along line H-H of Fig. 12; Figure 8

[0033] Figure 10 Fig. 14 is a partially exploded view of the filter assembly according to the second embodiment of the utility model in the first embodiment.

[0034] Explanation of Reference Signs:

[0035] 1, housing; 10, pre-filter slurry chamber; 11, upper housing; 12, lower housing; 121, sleeve; 13, housing discharge passage; 15, exhaust plug; 16, feed passage; 17, discharge connector; 18, exhaust pipe; 181, exhaust end; 19, extension pipe;

[0036] 2, filter element unit; 20, filter element; 21, top cover; 22, bottom cover; 221, filter element discharge passage; 23, filter element discharge passage; 24, tongue pipe; 25, post-filter slurry chamber;

[0037] 3, common plug; 31, assembly groove; 32, air passage; 321, main air passage; 322, branch air passage; 4, housing plug; 5, filter element plug; 6, first one-way valve; 61, first valve core; 62, first compression spring; 7, second one-way valve; 71, second valve core; 72, second compression spring; 81, spring sheet; 82, sealing sheet;

[0038] C, first gap; D, second gap; F, chamfer. DETAILED DESCRIPTION

[0039] ​The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict between them.

[0043] Embodiment one

[0044] As shown in Figures 1 to 10 The present embodiment provides a filter assembly, which comprises a shell 1 and a filter core unit 2, the filter core unit 2 is arranged in the shell 1, a pre-filter slurry cavity 10 (as shown in Figure 3 ) is formed between the outer wall of the filter core unit 2 and the inner wall of the shell 1, the filter core unit 2 has a post-filter slurry cavity 25 (as shown in Figure 3 ), the shell 1 is provided with a shell discharge channel 13 (as shown in Figure 6 ) communicating with the pre-filter slurry cavity 10, which is used to discharge the pre-filter slurry in the pre-filter slurry cavity 10, and the filter core unit 2 is provided with a filter core discharge channel 23 (as shown in Figure 6 ) communicating with the post-filter slurry cavity 25, which is used to discharge the post-filter slurry in the post-filter slurry cavity 25.

[0045] The filter assembly provided by the embodiment can discharge the pre-filtered slurry in the pre-filtered slurry chamber 10 along the shell discharge channel 13, and discharge the post-filtered slurry in the post-filtered slurry chamber 25 along the filter core discharge channel 23, thereby achieving double recovery of the pre-filtered slurry and the post-filtered slurry and improving the recovery rate of the slurry.

[0046] Further, the shell 1 comprises an upper shell 11 and a lower shell 12 fixed together, and the height of the upper shell 11 is obviously greater than the height of the lower shell 12, so that the filter core unit 2 can be conveniently installed on the lower shell 12.

[0047] Further, the filter core unit 2 comprises a filter core 20 and a top cover 21 and a bottom cover 22 connected to two ends of the filter core 20 respectively, and the top cover 21 and the bottom cover 22 seal the post-filtered slurry chamber 25. The top of the shell 1 has a first gap C (as shown in Figure 3 The bottom of the shell 1 has a second gap D (as shown in Figure 4 .

[0048] Further, the bottom of the shell 1 is provided with an inlet channel 16 (as shown in Figure 1 , Figure 3 and Figure 4 . As shown in Figure 4 , the filter assembly further comprises a sealing sheet 82 and an elastic sheet 81, the sealing sheet 82 is located in the shell 1 and arranged at the inlet channel 16, one end of the elastic sheet 81 is connected to the side wall of the inlet channel 16, and the other end abuts against the sealing sheet 82 outside the shell 1, the sealing sheet 82 can open and close the inlet channel 16 outside the shell 1, so that when the inlet is needed, the sealing sheet 82 can be pushed open inside the shell 1 to input the slurry into the pre-filtered slurry chamber 10, and when the inlet is not needed, the elastic sheet 81 abuts against the sealing sheet 82 outside the shell 1 to seal the inlet channel 16 with the sealing sheet 82, so as to prevent the liquid in the pre-filtered slurry chamber 10 from flowing out of the inlet channel 16, thereby achieving the opening and closing of the inlet channel 16 in a simple mechanical form. It should be noted that Figure 4 The elastic sheet 81 in is in a free state and does not abut against the sealing sheet 82.

[0049] In the embodiment, two design forms of the shell discharge channel 13 and the filter core discharge channel 23 are given, which are as follows, of course, not exhaustive:

[0050] As a first embodiment, the shell discharge channel 13 and the filter core discharge channel 23 are detachably plugged by a shared plug 3, as shown in Figures 1 to 6 .

[0051] Specifically, the shell discharge channel 13 is arranged at the top of the shell 1, and the filter core discharge channel 23 is arranged on the top cover 21 of the filter core unit 2. Moreover, the shell discharge channel 13 and the filter core discharge channel 23 are arranged opposite to each other, so as to facilitate the processing and installation of the shared plug 3.

[0052] Further, the filter assembly further comprises an exhaust head 15, the common head 3 is inwardly recessed at the end face away from the filter core unit 2 to form an assembly groove 31 (as shown in Figure 6 ), the exhaust head 15 blocks the assembly groove 31, the common head 3 is provided with air passages 32 (as shown in Figure 6 ), the air passages 32 respectively communicate with the assembly groove 31 and the pre-filter slurry cavity 10, so that in the process of discharging the slurry, the common head 3 is only taken down to realize the dual functions of discharging and exhausting, and the discharging step is simplified.

[0053] Specifically, as shown in Figure 3 and Figure 6 , the air passages 32 comprise a main air passage 321 and at least two branch air passages 322 extending along the radial direction of the common head 3, one end of the main air passage 321 communicates with the assembly groove 31, the other end respectively communicates with the at least two branch air passages 322, and the branch air passages 322 communicate with the first gap C away from the one end of the main air passage 321, the design of the at least two branch air passages 322 can accelerate the exhaust from the housing 1 to the external environment and accelerate the intake from the external environment to the housing 1, and at the same time, since the branch air passages 322 extend along the radial direction of the common head 3, the processing of the branch air passages 322 is facilitated.

[0054] Further, the bottom of the housing 1 is further connected with a discharge connector 17 (as shown in the part enclosed by the dashed rectangle in Figure 3 ), in the embodiment, the discharge connector 17 is integrally formed with the housing 1, of course, the discharge connector 17 and the housing 1 can also be respectively formed and then connected together. The bottom cover 22 of the filter core unit 2 is provided with a filter core discharge passage 221 (as shown in Figure 5 ), the filter assembly further comprises a first one-way valve 6, the first one-way valve 6 is arranged in the filter core discharge passage 221, and the first valve core 61 of the first one-way valve 6 blocks the discharge connector 17 in the discharge direction under the action of the first compression spring 62.

[0055] Further, the bottom cover 22 protrudes towards the housing 1 to be provided with a hollow tongue pipe 24, the filter core discharge passage 221 is formed in the tongue pipe 24, the housing 1 protrudes towards the bottom cover 22 to be provided with a sleeve pipe 121, and the sleeve pipe 121 is connected in a sleeved manner with the tongue pipe 24, so that the assembly of the filter core unit 2 and the housing 1 is more firm. One end of the first compression spring 62 of the first one-way valve 6 is connected with the inner wall of the filter core discharge passage 221, and the other end abuts against the first valve core 61, and the first one-way valve 6 belongs to the prior art and will not be described here.

[0056] Further, the side wall of the tongue pipe 24 is continuously provided with a chamfer F along the circumferential direction (as shown in Figure 5As shown, the opening of the tongue tube 24 near the discharge connector 17 is widened towards the discharge connector 17, which can guide the installation of the first check valve 6 and improve the convenience of installing the first check valve 6.

[0057] In the first embodiment, when discharge is required, the common plug 3 is removed, so that both the housing discharge channel 13 and the filter element discharge channel 23 are in an open state. The filter assembly is then inverted, so that the pre-filter slurry in the pre-filter slurry chamber 10 and the post-filter slurry in the post-filter slurry chamber 25 can be discharged simultaneously, thus achieving dual recovery of the pre-filter slurry and the post-filter slurry.

[0058] like Figures 7 to 10 In the second embodiment, the housing discharge channel 13 and the filter element discharge channel 23 are detachably sealed by the housing plug 4 and the filter element plug 5, respectively.

[0059] Furthermore, the filter plug 5 includes a second one-way valve 7 and a discharge connector 17. The discharge connector 17 is detachably connected to the housing 1. The second valve core 71 of the second one-way valve 7 blocks the discharge connector 17 in the discharge direction under the action of the second compression spring 72.

[0060] Specifically, an extension tube 19 (e.g., ...) protrudes from the shell 1 toward the bottom cover 22. Figure 9 As shown, the extension tube 19 is connected to the mounting hole (not labeled) on the bottom cover 22 of the filter element unit 2. The extension tube 19 is connected to the filtered slurry chamber 25. The filter element discharge channel 23 is formed inside the extension tube 19. The discharge connector 17 is connected to the extension tube 19, preferably by a threaded connection. The second one-way valve 7 is installed inside the extension tube 19.

[0061] Furthermore, an exhaust pipe 18 is provided on the top of the housing 1. When slurry is injected into the pre-filter slurry chamber 10, the exhaust pipe 18 is in the open state. When venting is not required, the exhaust pipe 18 is blocked by the exhaust end cap 181.

[0062] In the second embodiment, when discharge is required, the discharge connector 17 and the second one-way valve 7 are removed, the filter element discharge channel 23 is in an open state, and the filtered slurry in the filtered slurry chamber 25 can be discharged smoothly. Then, the shell plug 4 blocking the shell discharge channel 13 is removed, and the filtered slurry in the pre-filter slurry chamber 10 can be discharged smoothly. In this way, the dual recovery of pre-filter slurry and filtered slurry can be achieved.

[0063] Example 2

[0064] This embodiment provides a filter, including the filter component in Embodiment 1 (such as...). Figures 1 to 10The filter is connected with a feeding channel 16, a feeding pipeline (not shown) connected with the feeding channel 16, a discharging pipeline (not shown) connected with the discharging joint 17, and a control module capable of controlling the opening and closing of the first one-way valve 6 or the second one-way valve 7 in the first embodiment.

[0065] The filter has all the advantages of the filter assembly.

[0066] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation of the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations still fall within the protection scope of the utility model.

Claims

1. A filter assembly characterized by, The filter assembly comprises a shell (1) and a filter core unit (2), the filter core unit (2) is arranged in the shell (1), a pre-filter slurry cavity (10) is formed between the outer wall of the filter core unit (2) and the inner wall of the shell (1), the filter core unit (2) has a post-filter slurry cavity (25) therein, the shell (1) is provided with a shell discharge channel (13) communicating with the pre-filter slurry cavity (10) for discharging pre-filter slurry in the pre-filter slurry cavity (10), the filter core unit (2) is provided with a filter core discharge channel (23) communicating with the post-filter slurry cavity (25) for discharging post-filter slurry in the post-filter slurry cavity (25).

2. The filter assembly of claim 1, wherein, The shell discharge channel (13) and the filter core discharge channel (23) are detachably sealed by a shared plug (3).

3. The filter assembly of claim 2, wherein, The shell discharge channel (13) is arranged at the top of the shell (1), and the filter core discharge channel (23) is arranged on a top cover (21) of the filter core unit (2).

4. The filter assembly of claim 2 or 3, wherein, The shell discharge channel (13) is arranged opposite to the filter core discharge channel (23).

5. The filter assembly of claim 2, wherein, Further comprising an exhaust plug (15), an end surface of the shared plug (3) facing away from the filter core unit (2) is recessed inward to form a fitting groove (31), the exhaust plug (15) seals the fitting groove (31), the shared plug (3) is provided with an air passage (32) communicating with the fitting groove (31) and the pre-filter slurry cavity (10) respectively.

6. The filter assembly of claim 3, wherein, The bottom of the shell (1) is provided with an inlet channel (16) communicating with the pre-filter slurry cavity (10), and the bottom of the shell (1) is further connected with a discharge connector (17), the bottom cover (22) of the filter core unit (2) is provided with a filter core discharge channel (221), and the filter assembly further comprises a first one-way valve (6), the first one-way valve (6) is arranged in the filter core discharge channel (221), and a first valve core (61) of the first one-way valve (6) blocks the discharge connector (17) in a discharge direction under the action of a first compression spring (62).

7. The filter assembly of claim 1, wherein, The shell discharge channel (13) and the filter core discharge channel (23) are respectively detachably sealed by a shell plug (4) and a filter core plug (5).

8. The filter assembly of claim 7, wherein, The filter core plug (5) comprises a second one-way valve (7) and a discharge connector (17), the discharge connector (17) is detachably connected with the shell (1), and a second valve core (71) of the second one-way valve (7) blocks the discharge connector (17) in a discharge direction under the action of a second compression spring (72).

9. The filter assembly of claim 8, wherein, The shell (1) is provided with an extension pipe (19) protruding therefrom, the extension pipe (19) is connected with a mounting hole on the bottom cover (22) of the filter core unit (2) in a sleeved manner, the extension pipe (19) communicates with the post-filter slurry cavity (25), the filter core discharge channel (23) is formed in the extension pipe (19), the discharge connector (17) is detachably connected with the extension pipe (19) in a sleeved manner, and the second one-way valve (7) is arranged in the extension pipe (19).

10. A filter characterized by, The filter assembly comprises the filter assembly according to any one of claims 1-9.

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