Perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery

Abstract

The utility model relates to the technical field of perfluorinated filter elements, and discloses a perfluorinated filter element structure prepared from lithium hexafluorophosphate for a lithium battery, which comprises a shell, and a mounting seat is fixedly mounted at the top of the shell; the mounting assembly is fixedly mounted in the shell; wherein the mounting assembly comprises a limiting part and a fixing part; the filter element assembly is arranged in the shell; wherein the filter element assembly comprises a filtering part and a separating part. According to the utility model, the mounting assembly is arranged, the bottom frame, the frame and the shell are movably limited and mounted in the shell through the positioning columns, the top frame is limited and mounted in the shell through the positioning columns, the top frame is movably mounted at the top of the frame, and the fixed seat and the shell are fixedly mounted through threads; and the top frame, the framework and the bottom frame are limited and fixed by the fixed seat, so that the effect of simple mounting mode of the filter element structure is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of perfluorinated filters, and particularly to a perfluorinated filter structure for preparing lithium hexafluorophosphate for lithium batteries. Background Technique

[0002] The perfluorinated filter structure is made of perfluorinated materials because perfluorinated materials have excellent chemical stability, corrosion resistance and high temperature resistance, and are very suitable for filtering strongly corrosive chemicals such as lithium hexafluorophosphate. The filter element usually consists of a multi-layer structure, and each layer has different filtration accuracies and filtration media to effectively filter impurities of different sizes and properties in the raw liquid.

[0003] At present, in the actual application process of the perfluorinated filter structure for preparing lithium hexafluorophosphate for lithium batteries, the filter element structure is usually fixedly installed in the filtration system of the lithium hexafluorophosphate preparation equipment to filter the discharged raw liquid and remove impurities therein. However, in order to ensure its filtration effect and the sealing performance of the filter element structure, the perfluorinated filter element structure often has multiple-stage filtration components, and the filtration components are mostly fixedly installed between them. To disassemble the filtration components, it is necessary to process them one by one, and the operation is relatively troublesome. Content of the Utility Model

[0004] The purpose of the utility model is to provide a perfluorinated filter structure for preparing lithium hexafluorophosphate for lithium batteries, so as to achieve the purpose of solving the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A perfluorinated filter structure for preparing lithium hexafluorophosphate for lithium batteries, comprising a housing, and a mounting seat is fixedly installed on the top of the housing;

[0006] A mounting component, which is fixedly installed inside the housing;

[0007] Wherein, the mounting component includes a limiting part and a fixing part;

[0008] A filter element component, which is arranged inside the housing;

[0009] Wherein, the filter element component includes a filtering part and a separating part.

[0010] Preferably, the limiting part includes positioning columns, a bottom frame is movably installed inside the housing, and a frame is movably installed on the top of the bottom frame.

[0011] Preferably, the positioning columns are fixedly installed equidistantly on the circumference inside the housing. Positioning holes are provided equidistantly on the circumference inside both the bottom frame and the frame. The positioning columns are adapted to the positioning holes. The top ends of the positioning columns sequentially penetrate through the bottom frame and the frame, and the top ends of the positioning columns extend to the top of the frame. The bottom of the frame penetrates through the bottom frame and extends into the inside of the bottom frame.

[0012] Preferably, the fixing part includes a top frame. A first sealing ring is arranged inside the top frame. A fixing seat is arranged on the top of the top frame. An inner pipe is fixedly installed on the top of the fixing seat. A second sealing ring is fixedly installed in the middle of the inner pipe. An installation groove is provided inside the top frame. A retaining ring is fixedly installed on the inner wall of the fixing seat.

[0013] Preferably, the top frame is movably installed on the top of the frame. Positioning holes are provided equidistantly on the circumference inside the top frame. The positioning holes are adapted to the positioning columns. The top of the top frame abuts against the bottom of the fixing seat. The first sealing ring is movably installed inside the installation groove. The first sealing ring is adapted to the installation groove. The fixing seat is fixedly installed with the housing by threads. The retaining ring is fixedly installed with the first sealing ring. The bottom of the retaining ring contacts the top of the top frame, and the bottom of the top of the fixing seat contacts the top of the positioning column. The bottom of the top frame penetrates through the frame and extends into the inside of the frame.

[0014] Preferably, the filtering part includes a first filter screen. A first filtering medium is arranged on the top of the first filter screen. A second filter screen is arranged on the top of the first filter screen. A second filtering medium is arranged on the top of the second filter screen. The first filter screen is fixedly installed at the bottom of the bottom frame. The first filtering medium is arranged inside the bottom frame. The second filter screen is fixedly installed at the bottom of the frame. The second filtering medium is arranged inside the frame.

[0015] Preferably, the separating part includes a third filter screen. A grid plate is arranged on the top of the third filter screen. A frame body is arranged inside the housing. An installation hole is provided inside the housing. A third filtering medium is arranged on the top of the third filter screen.

[0016] Preferably, the third filter screen is fixedly installed at the bottom of the top frame. The grid plate is fixedly installed inside the frame body. The frame body is fixedly installed with the top frame by threads. The frame body is adapted to the installation hole. The installation hole is provided inside the top frame. The third filtering medium is arranged inside the top frame.

[0017] The utility model provides a full - fluorine filter element structure for preparing lithium hexafluorophosphate for lithium batteries. It has the following beneficial effects:

[0018] (1) The present utility model achieves the effect of simple installation method for the filter element structure by providing an installation component. The bottom frame, the frame and the housing are movably and limit-mounted inside the housing through positioning columns, the top frame is limit-mounted inside the housing through positioning columns, and the top frame is movably mounted on the top of the frame. The fixed seat is fixedly mounted on the housing through threads, and the fixed seat completes the limit fixation of the top frame, the frame and the bottom frame.

[0019] (2) The present utility model achieves the effect of ensuring complete filtration by providing a filter element component. The filter medium three preliminarily filters the discharged liquid. The filter openings of the first filter screen and the second filter screen are of different sizes. The diameter of the filter opening of the first filter screen is smaller than that of the second filter screen. The filter media one and the filter media two perform multi-stage filtration on the discharged liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is an internal structural view of the present utility model;

[0022] Figure 3 is a front view of the present utility model;

[0023] Figure 4 is the present utility model Figure 2 partial enlarged view of A in the present utility model.

[0024] In the figure: 1 housing, 2 mounting seat, 3 installation component, 31 limiting part, 311 positioning column, 312 bottom frame, 313 frame, 32 fixing part, 321 top frame, 322 first sealing ring, 323 fixed seat, 324 inner tube, 325 second sealing ring, 326 installation groove, 327 retaining ring, 4 filter element component, 41 filtering part, 411 first filter screen, 412 first filter medium, 413 second filter screen, 414 second filter medium, 42 separating part, 421 third filter screen, 422 grid plate, 423 frame body, 424 installation hole, 425 third filter medium. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals throughout denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] Embodiment 1

[0028] A preferred embodiment of the perfluorinated filter element structure prepared from lithium hexafluorophosphate for a lithium battery provided by the present invention is as Figures 1-4 shown: A perfluorinated filter element structure prepared from lithium hexafluorophosphate for a lithium battery, comprising a housing 1, and a mounting seat 2 is fixedly installed on the top of the housing 1;

[0029] A mounting assembly 3, and the mounting assembly 3 is fixedly installed inside the housing 1;

[0030] Among them, the mounting assembly 3 includes a limiting part 31 and a fixing part 32;

[0031] The limiting part 31 includes a positioning column 311. A bottom frame 312 is movably installed inside the housing 1, and a frame 313 is movably installed on the top of the bottom frame 312. The positioning columns 311 are fixedly installed equidistantly in a circumferential direction inside the housing 1. Positioning holes are opened equidistantly in a circumferential direction inside both the bottom frame 312 and the frame 313. The positioning columns 311 are adapted to the positioning holes. The top end of the positioning column 311 sequentially penetrates through the bottom frame 312 and the frame 313, and the top end of the positioning column 311 extends to the top of the frame 313. The bottom of the frame 313 penetrates through the bottom frame 312 and extends into the inside of the bottom frame 312; The bottom frame 312, the frame 313 and the housing 1 are movably and limitedly installed inside the housing 1 through the positioning columns 311;

[0032] The fixed part 32 includes a top frame 321. Inside the top frame 321, there is a first sealing ring 322. On the top of the top frame 321, there is a fixing seat 323. On the top of the fixing seat 323, an inner tube 324 is fixedly installed. In the middle of the inner tube 324, a second sealing ring 325 is fixedly installed. Inside the top frame 321, there is an installation groove 326. On the inner wall of the fixing seat 323, a retaining ring 327 is fixedly installed. The top frame 321 is movably installed on the top of the frame 313. Equally spaced positioning holes are circumferentially formed inside the top frame 321, and the positioning holes are adapted to the positioning posts 311. The top of the top frame 321 abuts against the bottom of the fixing seat 323. The first sealing ring 322 is movably installed inside the installation groove 326, and the first sealing ring 322 is adapted to the installation groove 326. The fixing seat 323 is fixedly installed with the housing 1 by means of threads. The retaining ring 327 is fixedly installed with the first sealing ring 322. The bottom of the retaining ring 327 contacts the top of the top frame 321. The bottom of the top fixing seat 323 contacts the top of the positioning post 311. The bottom of the top frame 321 penetrates through the frame 313 and extends into the interior of the frame 313. The top frame 321 is limited and installed inside the housing 1 by the positioning posts 311, and the top frame 321 is movably installed on the top of the frame 313. The fixing seat 323 is fixedly installed with the housing 1 by means of threads, and the fixing seat 323 completes the limiting and fixing of the top frame 321, the frame 313 and the bottom frame 312. The first sealing ring 322 is fixedly installed at the connection between the top frame 321 and the frame 313 to ensure its sealing performance, and the second sealing ring 325 maintains the sealing performance at the interface between the filter element and the filtration system.

[0033] Embodiment 2

[0034] On the basis of Embodiment 1, a preferred embodiment of the all-perfluorinated filter element structure prepared from lithium hexafluorophosphate for a lithium battery provided by the present utility model is as Figures 1-4 shown: A filter element assembly 4 is arranged inside the housing 1;

[0035] Among them, the filter element assembly 4 includes a filtering part 41 and a separating part 42;

[0036] The filtering part 41 includes a first filter net 411. On the top of the first filter net 411, there is a first filtering medium 412. On the top of the first filter net 411, there is a second filter net 413. On the top of the second filter net 413, there is a second filtering medium 414. The first filter net 411 is fixedly installed at the bottom of the bottom frame 312. The first filtering medium 412 is arranged inside the bottom frame 312. The second filter net 413 is fixedly installed at the bottom of the frame 313. The second filtering medium 414 is arranged inside the frame 313. The filter openings of the first filter net 411 and the second filter net 413 are of different sizes. The diameter of the filter opening of the first filter net 411 is smaller than that of the second filter net 413. The first filtering medium 412 and the second filtering medium 414 perform multi-stage filtration on the discharged liquid;

[0037] The separation part 42 includes a third filter screen 421. A grid plate 422 is provided at the top of the third filter screen 421. A frame body 423 is provided inside the housing 1. An installation hole 424 is provided inside the housing 1. A third filter medium 425 is provided at the top of the third filter screen 421. The third filter screen 421 is fixedly installed at the bottom of the top frame 321. The grid plate 422 is fixedly installed inside the frame body 423. The frame body 423 is fixedly installed with the top frame 321 by threads. The frame body 423 is adapted to the installation hole 424. The installation hole 424 is opened inside the top frame 321. The third filter medium 425 is provided inside the top frame 321. The grid plate 422 is installed on the top of the third filter medium 425 by threads to limit the third filter medium 425. The third filter medium 425 preliminarily filters the discharged liquid.

[0038] During use, the bottom frame 312, the frame 313 and the housing 1 are movably and limitably installed inside the housing 1 through the positioning columns 311. The top frame 321 is limitably installed inside the housing 1 through the positioning columns 311, and the top frame 321 is movably installed on the top of the frame 313. The fixed seat 323 is fixedly installed with the housing 1 by threads, and the fixed seat 323 completes the limiting and fixing of the top frame 321, the frame 313 and the bottom frame 312. The first sealing ring 322 is fixedly installed at the connection between the top frame 321 and the frame 313 to ensure its sealing performance. The second sealing ring 325 maintains the sealing performance at the interface between the filter element and the filtration system. The filter openings of the first filter screen 411 and the second filter screen 413 are of different sizes. The diameter of the filter opening of the first filter screen 411 is smaller than that of the second filter screen 413. The first filter medium 412 and the second filter medium 414 perform multi-stage filtration on the discharged liquid. The grid plate 422 is installed on the top of the third filter medium 425 by threads to limit the third filter medium 425. The third filter medium 425 preliminarily filters the discharged liquid.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium batteries, characterized in that: It comprises a shell (1), a mounting seat (2) being fixedly mounted on the top of the shell (1); An installation component (3), wherein the installation component (3) is fixedly installed inside the housing (1); Wherein, the installation component (3) comprises a limiting portion (31) and a fixing portion (32); A filter element assembly (4), wherein the filter element assembly (4) is arranged inside the housing (1); Wherein, the filter element assembly (4) comprises a filtering portion (41) and a separation portion (42).

2. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 1, characterized in that: The limiting part (31) comprises a positioning column (311), a bottom frame (312) is movably mounted inside the shell (1), and a frame (313) is movably mounted on the top of the bottom frame (312).

3. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 2, characterized in that: The positioning posts (311) are fixedly installed at equal intervals on the circumference inside the shell (1); positioning holes are opened at equal intervals on the circumference inside the bottom frame (312) and the frame (313); the positioning posts (311) are adapted to the positioning holes; the top end of the positioning posts (311) passes through the bottom frame (312) and the frame (313) in sequence; the top end of the positioning posts (311) extends to the top of the frame (313); the bottom end of the frame (313) passes through the bottom frame (312) and extends to the inside of the bottom frame (312).

4. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 1, characterized in that: The fixing part (32) comprises a top frame (321), a sealing ring 1 (322) is arranged inside the top frame (321), a fixing seat (323) is arranged at the top of the top frame (321), an inner tube (324) is fixedly installed on the top of the fixing seat (323), a sealing ring 2 (325) is fixedly installed in the middle of the inner tube (324), a mounting groove (326) is opened inside the top frame (321), and a retaining ring (327) is fixedly installed on the inner wall of the fixing seat (323).

5. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 4, characterized in that: The top frame (321) is movably mounted on the top of the frame (313); positioning holes are equidistantly formed on the inner circumference of the top frame (321); the positioning holes are matched with the positioning posts (311); the top of the top frame (321) is in conflict with the bottom of the fixing seat (323); the sealing ring (322) is movably mounted inside the mounting groove (326); the sealing ring (322) is matched with the mounting groove (326); the fixing seat (323) is fixedly mounted with the shell (1) by means of threads; the retaining ring (327) is fixedly mounted with the sealing ring (322); the bottom of the retaining ring (327) is in contact with the top of the top frame (321); the bottom of the top fixing seat (323) is in contact with the top of the positioning posts (311); the bottom of the top frame (321) passes through the frame (313) and extends to the inside of the frame (313).

6. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 1, characterized in that: The filtering part (41) comprises a filter screen 1 (411), a filter medium 1 (412) is arranged on the top of the filter screen 1 (411), a filter screen 2 (413) is arranged on the top of the filter screen 1 (411), a filter medium 2 (414) is arranged on the top of the filter screen 2 (413), the filter screen 1 (411) is fixedly mounted on the bottom of the bottom frame (312), the filter medium 1 (412) is arranged inside the bottom frame (312), the filter screen 2 (413) is fixedly mounted on the bottom of the frame (313), and the filter medium 2 (414) is arranged inside the frame (313).

7. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 1, characterized in that: The separation portion (42) comprises a filter net three (421), a mesh plate (422) is arranged on the top of the filter net three (421), a frame (423) is arranged inside the shell (1), a mounting hole (424) is arranged inside the shell (1), and a filter medium three (425) is arranged on the top of the filter net three (421).

8. The perfluorinated filter element structure prepared from lithium hexafluorophosphate for lithium battery according to claim 7, characterized in that: The filter net three (421) is fixedly mounted on the bottom of the top frame (321), the grid plate (422) is fixedly mounted inside the frame body (423), the frame body (423) and the top frame (321) are fixedly mounted via threads, the frame body (423) and the mounting hole (424) are matched, the mounting hole (424) is opened inside the top frame (321), and the filter medium three (425) is arranged inside the top frame (321).

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