CN113440972A - Purification device and method for manufacturing purification device - Google Patents
Purification device and method for manufacturing purification device Download PDFInfo
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- CN113440972A CN113440972A CN202010472131.5A CN202010472131A CN113440972A CN 113440972 A CN113440972 A CN 113440972A CN 202010472131 A CN202010472131 A CN 202010472131A CN 113440972 A CN113440972 A CN 113440972A
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- circuit board
- timing circuit
- upper cover
- purification
- air
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- 238000000746 purification Methods 0.000 title claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title description 7
- 239000003292 glue Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- 239000000155 melt Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000035943 smell Effects 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000008023 solidification Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
- B01D2253/1122—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides a purification device, which comprises a shell, a purification module and a service life prompting module, wherein the purification module and the service life prompting module are arranged in the shell, the shell comprises a main shell, the main shell is provided with a top part, a bottom part opposite to the top part and a side wall for connecting the top part and the bottom part, the purification module is arranged between the top part and the bottom part, the service life prompting module comprises a timing circuit board, the top part is connected with an upper cover, the inner side of the upper cover is provided with a supporting rib, the timing circuit board is supported on the supporting rib to form a gap between the upper cover and the timing circuit board, the gap is filled with waterproof glue, and the surface of the timing circuit board facing the bottom part is coated with the waterproof glue; the invention also provides a manufacturing method of the purification device.
Description
Technical Field
The invention relates to the field of deodorization and sterilization, in particular to a purification device and a manufacturing method of the purification device.
Background
At present, a refrigerator becomes a household appliance necessary for a family, and a user often stores most food materials in the family in the refrigerator. Since different kinds of food materials emit different tastes, when a plurality of food materials are stored in a refrigerator, the smells of the plurality of food materials are mixed, and an unpleasant pungent smell is often generated. Meanwhile, the food materials stored in the refrigerator are complicated, so that the harm to the health of a user caused by bacteria breeding is very easy to happen.
In order to eliminate peculiar smell and bacteria in the refrigerator, a purification device is often arranged in the refrigerator, an air hole is formed in a shell of the purification device, and cold air in the refrigerator enters the purification device through the air hole, is purified by purification modules such as activated carbon and the like and then flows into the refrigerator. The purification module inside the purification apparatus may fail after a long time use, and thus, a life prompting module may be installed inside the purification apparatus. However, the service life prompting module is easy to be short-circuited and fail due to more water vapor in the refrigerator.
Disclosure of Invention
The invention provides a purification device and a manufacturing method of the purification device, which can prevent water vapor from damaging a service life prompting module in the purification device.
The purification device provided by one embodiment of the invention comprises a shell, a purification module and a service life prompting module, wherein the purification module and the service life prompting module are arranged in the shell, the shell comprises a main shell, the main shell is provided with a top part, a bottom part opposite to the top part and a side wall for connecting the top part and the bottom part, the purification module is arranged between the top part and the bottom part, the service life prompting module comprises a timing circuit board, the top part is connected with an upper cover, a supporting rib is arranged on the inner side of the upper cover, the timing circuit board is supported on the supporting rib to form a gap between the upper cover and the timing circuit board, waterproof glue is filled in the gap, and the surface of the timing circuit board facing the bottom part is coated with the waterproof glue.
Preferably, the timing circuit board is circular, the support rib comprises at least two sections of arc rib plates arranged at intervals, and the arc rib plates are supported on the edge of the timing circuit board.
Preferably, the service life prompting module further comprises an indicator light and a light guide part, wherein the light guide part is provided with a light-gathering part, the indicator light is arranged in the light-gathering part, the light guide part is arranged in the gap, and the light guide part and the arc-shaped rib plate are distributed at intervals and arranged at the edge of the timing circuit board.
Preferably, the light guide member is provided with a positioning hole, the cross-sectional area of the positioning hole close to one side of the upper cover is smaller than that of the other side of the upper cover, the upper cover is provided with a positioning column matched with the positioning hole, the length of the positioning column is larger than that of the positioning hole, and the positioning column is melted and filled in the positioning hole.
Preferably, the positioning hole comprises a matching portion and a material containing portion, the matching portion is close to one side of the upper cover, the matching portion is matched with the positioning column in shape, and the cross section of the material containing portion in the direction parallel to the height direction of the positioning hole is trapezoidal.
Preferably, the inner side of the upper cover is further provided with hooks, the hooks are arranged at intervals with the arc-shaped rib plates along the edge of the timing circuit board, the edge of the timing circuit board is provided with notches matched with the hooks, and the hooks are hooked on the surface of the timing circuit board.
Preferably, the purification module is supported between the top and the bottom, and the upper cover is further provided with a limiting plate abutted to the purification module.
Preferably, the service life prompting module further comprises a battery for supplying power to the timing circuit board and a timing control switch for communicating or disconnecting the battery and the electrical connection on the timing circuit board, the timing circuit board and a connection circuit of the battery are provided with a first electrical contact and a second electrical contact which are disconnected, the timing control switch comprises a control elastic sheet and a contact spacer which penetrates through the shell, one end of the control elastic sheet is fixed on the timing circuit board and is electrically connected with the first electrical contact, the other end of the control elastic sheet is in a cantilever shape and is provided with a bulge facing the second electrical contact, and one end of the contact spacer is arranged between the bulge and the second electrical contact to block the electrical connection between the bulge and the second electrical contact.
Preferably, a through hole is formed in the timing circuit board, a screw post corresponding to the through hole is arranged on the upper cover, the first electric contact is arranged at the through hole, and one end of the control elastic sheet is fixed on the screw post through a screw and is electrically connected with the first electric contact through the screw.
Preferably, the control spring plate is L-shaped, one end of the control spring plate is provided with a downward bent folded edge, and the timing circuit board is provided with a slotted hole matched with the folded edge.
Another embodiment of the present invention provides a method for manufacturing a purification apparatus, including the steps of:
placing the timing circuit board on the support ribs on the inner side of the shell;
and filling waterproof glue in a gap between the shell and the timing circuit board and coating the waterproof glue on the surface of the timing circuit board facing to the bottom of the shell.
Preferably, before the step of "placing the timing circuit board on the support ribs inside the housing", the method further comprises the steps of:
matching the positioning hole of the light guide piece with the positioning column on the shell to install the light guide piece at a preset position;
and melting the positioning column by hot melting so as to fill the melting material of the positioning column into the positioning hole.
Preferably, before the step of "filling a waterproof adhesive in a gap between the housing and the timing circuit board and coating the waterproof adhesive on a surface of the timing circuit board facing the bottom of the housing", the method further comprises the steps of:
inserting the through hole on the timing circuit board into the screw post of the shell;
and inserting the folded edge at one end of the control elastic sheet into the slotted hole on the timing circuit board, and fixing the control elastic sheet by using a screw.
Preferably, the step of "placing the timing circuit board on the support ribs inside the case" includes the steps of:
matching a notch on the timing circuit with a clamping hook on the inner side of the shell;
and pressing the timing circuit board to make the hook elastically deform so as to fix the timing circuit board on the support rib.
According to the purification device and the manufacturing method of the purification device, the waterproof glue is filled in the gap between the timing circuit board and the upper cover, and the waterproof glue is coated on the side, away from the upper cover, of the timing circuit board of the refrigerator, so that the timing circuit board can be prevented from being damaged by water vapor; meanwhile, the waterproof glue is filled without influencing the installation and the use of the timing control switch.
Drawings
FIG. 1 is a perspective view of a purification apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded view of the purification apparatus shown in FIG. 1;
FIG. 3 is a perspective view of the air deflector of the purification apparatus shown in FIG. 1;
FIG. 4 is a perspective view of the light guide of the purification apparatus shown in FIG. 1;
FIG. 5 is a cross-sectional view of the light guide shown in FIG. 4;
FIG. 6 is a perspective view of the upper cover of the purification apparatus shown in FIG. 1;
FIG. 7 is a schematic view illustrating an assembled state of an upper cover and a life prompting module of the purification apparatus shown in FIG. 1;
FIG. 8 is an exploded view of the upper cover and the life prompting module of the purification apparatus shown in FIG. 7;
FIG. 9 is a perspective view of the base of the purification apparatus shown in FIG. 1;
FIG. 10 is a perspective view of the base shown in FIG. 9 from another perspective;
fig. 11 is a schematic view of a handle of the purification apparatus of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the purification device includes a housing and a purification module installed in the housing, the housing is provided with a plurality of air holes, and the purification module may be a physical or chemical module such as activated carbon, nano silver and the like for adsorbing odor or bacteria in the refrigerator. When the purification device is installed inside the refrigerator, the gas with peculiar smell in the refrigerator enters the shell through the air hole on the shell, flows through the purification module and then returns into the refrigerator body.
In an embodiment of the present invention, the extending direction of the plurality of air holes on the casing from outside to inside is a converging shape passing through the purification module, so as to ensure that all the cold air entering the casing passes through the purification module inside, and improve the purification effect. Preferably, the casing is in a circular truncated cone shape, the purification module is arranged at the middle position of the inner side of the casing along the radial direction, and at least part of the air holes penetrate through the center of the bottom of the casing along the extending direction from outside to inside. When the shell is in a round table shape, the bottom of the shell is circular, and the area of the top of the shell is smaller than that of the bottom.
Further, the housing includes a main housing 30, the main housing 30 having a top, a bottom opposite to the top, and a sidewall connecting the top and the bottom, the purification module being interposed between the top and the bottom of the main housing 30. The casing further comprises an air deflector 20, the air deflector 20 is connected to an opening at the top of the main casing 30, and a plurality of air holes are formed in the air deflector 20 and/or the side wall of the main casing 30.
Specifically, in this embodiment, the air holes are formed in the side walls of the air deflector 20 and the main housing 30 along the circumferential direction, the air holes in the air deflector 20 form the top surface air opening 203, the air holes in the side walls form the side surface air opening 301, and the air holes forming the top surface air opening 203 and the side surface air opening 301 are all convergent. The included angle between the extending direction of a part of the air holes formed on the air deflector 20 from outside to inside and the extending direction of a part of the air holes formed on the side wall from outside to inside is 80-100 degrees. Specifically, the main housing 30 is circular truncated cone-shaped, and the included angle between the top surface air opening 203 and the side surface air opening 301 which are respectively arranged at two sides of the central axis of the main housing 30 in the extending direction from outside to inside is 80-100 degrees, preferably 90 degrees.
Because the wind direction in the refrigerator is fixed, one of the top surface air port 203 and the side surface air port 301 forms a main air inlet, the other one forms a main air outlet, most of the air flow enters the inside of the shell of the purification device through the main air inlet, and the air flow is discharged into the inside of the refrigerator through the main air outlet after internal circulation. When the user changes purifier's the direction of placing, purifier's main air intake and main air outlet position interchange, and top surface wind gap 203 and side wind gap 301 all are and assemble the form, guarantee that the user places purifier with whatever type, purifier all has the best air intake that corresponds, and the wind homoenergetic that gets into the casing inside can pass purification module.
And the side air ports 301 and the top air ports 203 are arranged in different directions, especially when the included angle between the top air ports 203 and the side air ports 301 is 80-100 degrees, the top air ports 203 and the side air ports 301 are nearly vertical, so that the cold air purified by the purification module can be prevented from flowing back to the inside of the shell.
In another embodiment of the present invention, the extending direction of the plurality of air holes on the housing from the outside to the inside forms an acute angle with the vertical direction from the top to the bottom of the main housing 30. Preferably, the main housing is circular truncated cone-shaped, the top and bottom of the main housing 30 are circular, and at least a portion of the air holes extend from outside to inside through the center of the bottom of the main housing 30. So for the wind that gets into in the casing all flows towards same direction, and all passes purification module, and purifying effect is good.
Further, a plurality of air holes are formed on the air guide plate 20 and/or the side wall of the main housing 30. The air holes provided on the side wall of the main casing 30 form the side air ports 301, and the air holes provided on the air guide plate 20 form the top air ports 203. Specifically, in this embodiment, the included angle between the extending direction of the outside-in side air inlet 301 and the central axis of the casing is an acute angle, and the included angle between the extending direction of the outside-in top air inlet 203 and the central axis of the casing is an acute angle, so when the user places the purifying device in different directions to cause the main air inlet and the main air outlet to be converted, the cold air can be guaranteed to pass through the purifying module, and a better purifying effect is achieved.
Further, the air deflector 20 and the side wall of the main housing 30 are both formed with air holes, an included angle between the extending direction of at least a part of the air holes formed on the air deflector 20 from outside to inside and the extending direction of at least a part of the air holes formed on the side wall of the main housing 30 from outside to inside is 80-100 degrees, specifically, an included angle between the extending directions of the top surface air port 203 and the side surface air port 301 respectively arranged at two sides of the central axis of the main housing 30 from outside to inside is 80-100 degrees, preferably 90 degrees, in this way, the air inlet direction and the air outlet direction of most of the air flow are approximately perpendicular, and the air can be prevented from flowing back to the inside of the housing.
Further, at least two air deflectors 20 are arranged, and the at least two air deflectors 20 are arranged in an overlapping manner. All be provided with the wind hole on two at least aviation baffles 20, and the wind hole on two aviation baffles 20 corresponds link up, so, through setting up a plurality of aviation baffles 20, can prolong the length of top surface wind gap 203, and then prolong inside wind path, reinforcing evolution effect.
Specifically, the air guiding plate 20 includes a first air guiding plate 201 and a second air guiding plate 202, the first air guiding plate 201 is integrally formed with the main casing 30, and the second air guiding plate 202 is stacked on a side of the first air guiding plate 201 away from the bottom of the main casing 30. Specifically, the first air guiding plate 201 is disposed inside the main casing 30, and a gap is left between the first air guiding plate 201 and the top of the main casing 30, that is, an edge of the side wall of the main casing 30, which faces the top, is higher than the first air guiding plate 201, an inward concave space is formed between the side wall of the main casing 30 and the first air guiding plate 201, and the second air guiding plate 202 is installed in the inward concave space. Therefore, the installation of the plurality of air deflectors 20 is facilitated, and the second air deflector 202 can be replaced with different colors according to the preference of users, so that the attractiveness of the purification device is improved.
Further, referring to fig. 2 and 3, the first air deflector 201 and the second air deflector 202 are both annular, inner rings of the first air deflector 201 and the second air deflector 202 are arranged in a non-centrosymmetric manner, the second air deflector 202 has a flange 205 arranged along an edge of the inner ring, the flange 205 is folded toward the first air deflector 201, and when in an assembled state, the flange 205 is tightly attached to the edge of the inner ring of the first air deflector 201. Therefore, the inner ring is arranged to be non-centrosymmetric, so that the first air deflector 201 and the second air deflector 202 are positioned conveniently during installation, and the installation error is reduced.
Further, referring to fig. 1 to 3, the casing further includes an upper cover 10, the upper cover 10 is mounted above the air deflector 20, and an edge of the upper cover 10 covers a portion of the plurality of air holes. Specifically, the upper cover 10 is connected to the top of the main housing 30, is installed outside the air deflector 20, and covers the inner ring of the air deflector 20, and the edge of the upper cover 10 covers a part of the top surface air opening 203. The upper cover 10 is circular, a plurality of air holes forming the top surface air opening 203 are distributed along the circumferential direction of the air deflector 20, the connecting line of the centers of the plurality of air holes is circular, the edge of the upper cover 10 covers a part of the top surface air opening 203, namely, the edge of the upper cover 10 covers the edge of the air hole formed on the air deflector 20, and therefore the visual effect can be prevented from being influenced by the fact that the upper air hole and the lower air hole are uneven due to manufacturing errors of the plurality of air deflectors 20.
The second air guiding plate 202 is further provided with a clamping jaw on one side facing the first air guiding plate 201, the first air guiding plate 201 is provided with a corresponding opening, and the second air guiding plate 202 is fixed on the first air guiding plate 201 through the clamping jaw. Referring to fig. 6, the inner side of the upper cover 10 is provided with a fixing hook 105. In the assembled state, the fixing hooks 105 are distributed along the inner edge of the air deflector 20, and when the upper cover 10 is assembled to the air deflector 20, the fixing hooks 105 are fastened on the surface of the first air deflector 201 facing the bottom. Therefore, the upper cover 10 and the air deflector 20 are installed through the hidden hook structure, and the appearance attractiveness is improved.
Further, referring to fig. 3 to 8, a life prompting module is further installed inside the upper cover 10. The annular inner edges of the first air deflector 201 and the second air deflector 202 are provided with grooves 206, and a part of the service life prompting module is arranged in the grooves 206 of the first air deflector 201 and the second air deflector 202 and is designed to be matched with the shape of the inner edges of the grooves 206, so that the integral structure is compact.
Referring to fig. 5 to 8, a support rib 101 is disposed in the upper cover 10, and the support rib 101 is supported on the edge of the life prompting module, so that a gap is left between the life prompting module and the upper cover 10. Specifically, the life prompting module includes a timing circuit board 60 provided with a timing circuit, an indicator lamp provided on a side of the timing circuit board 60 facing the upper cover 10, and a light guide member 50 fixed between the upper cover 10 and the timing circuit board 60. The light guide member 50 is provided with a light-gathering portion 501, and the indicator lamp is disposed in the light-gathering portion 501 to improve the light-emitting effect of the indicator lamp. The timing circuit board 60 is supported on the support ribs 101 to form a gap with the upper cover 10, and waterproof glue is filled between the upper cover 10 and the timing circuit board 60 to prevent water vapor from damaging the timing circuit board 60. The light guide 50 is disposed between the timer circuit board 60 and the upper cover 10. Specifically, the timing circuit board 60 is circular, the support rib 101 includes two arc rib plates distributed at intervals, the outer contour of the light guide member 50 is quadrilateral, one side of the light guide member is an arc side, and in an assembly state, the edge of the arc side of the light guide member 50 exceeds the edge of the timing circuit board 60.
Referring to fig. 2 to 4, the groove 206 of the annular inner edges of the first air deflector 201 and the second air deflector 202 includes an arc surface, and the arc edge of the light guide member 50 is matched with the arc surface of the groove 206 in shape. Specifically, the inner ring of the air deflector 20 comprises a section of a major arc 207 concentric with the outer ring, a section of a minor arc 208 concentric with the outer ring, and two sections of connecting arcs 209 connecting the major arc 207 and the minor arc 208, the radius of the minor arc 208 is larger than that of the major arc 207, and the section between the minor arc 208 and the two sections of connecting arcs 209 forms the groove 206 at the inner edge of the air deflector 20. The life prompting module is arranged at one side close to the minor arc 208, the curvature of the arc-shaped edge of the light guide 50 is the same as that of the minor arc 208, the light guide 50 is arranged in the groove 206, and the arc-shaped edge is matched with the minor arc 208. Therefore, when the upper cover 10 is installed, the positioning can be carried out through the light guide piece 50 and the inner ring of the air deflector 20, the installation is convenient, the internal space of the shell is reasonably utilized, and the whole structure is compact.
Further, referring to fig. 3 and 6, the air deflector 20 is disposed in an axisymmetric manner, the air deflector 20 is further provided with a guide hole 204, and the upper cover 10 is provided with a guide post 104 engaged with the guide hole 204. Specifically, three guide holes 204 are provided, which are respectively located on the symmetry axis of the air deflector 20 and on two sides of the connecting arc 209 of the inner ring of the air deflector 20. Therefore, the position of the guide hole 204 is convenient to determine during machining and manufacturing, and manufacturing errors are reduced. The efficiency of the housing mounting assembly can be further enhanced by the cooperation of the guide posts 104 and the guide holes 204.
Further, referring to fig. 2 and 9, the bottom of the main housing 30 is provided with an opening, the housing further includes a base 40 installed at the opening at the bottom of the main housing 30, and the purification module is supported on the base 40 and has a gap with the base 40 to form an air flow channel. The base 40 includes a bottom plate 401 and a support base disposed on the bottom plate 401, the support base having a surrounding frame 403 and legs 402 extending downward from four corners of the surrounding frame 403. The legs 402 are formed with support blocks extending to the inside and below the enclosure frame 403, and the purification module is supported on the support blocks of the legs 402 and placed inside the enclosure frame 403. A gap is left between the bottom of the enclosure 403 and the bottom plate 401, and an airflow channel is formed between the purification module and the bottom plate 401. The purification module is a cube or a cuboid.
The bottom end of the side wall of the main housing 30 is provided with a convex rib 302 protruding towards the center of the main housing 30, and a guide plate 303 extending from the inner surface of the side wall to the bottom, the base 40 further comprises a mounting rib plate 406 protruding towards the top along the edge of the bottom plate 401, the side wall of the mounting rib plate 406 is provided with a through hole 408 corresponding to the convex rib 302, and the base 40 is mounted on the main housing 30 through the matching of the through hole 408 and the convex rib 302. The side wall of the mounting rib 406 has a broken guiding notch 407, and the guiding notch 407 cooperates with the guiding plate 303 to mount and position the base 40.
Referring to fig. 6, the inner surface of the upper cover 10 is further provided with a limiting plate 106, the limiting plate 106 is a rib plate extending from the upper cover 10 to the bottom and abutting against the surface of the purification module, specifically, the limiting plate 106 is an arc rib plate, and in an assembled state, the limiting plate 106 is placed in the inner ring of the air deflector 20.
Therefore, the movement of the purification module is limited by the limiting plate 106 on the upper cover 10, the support legs 402 on the base 40 and the surrounding frame 403, and gaps are left between the purification module and the side walls of the upper cover 10, the air guide plate 20, the base 40 and the main housing 30, so that cold air is allowed to pass through, the circulation of the cold air entering the housing is facilitated, and the purification effect is improved.
When a user places the purification device in different directions, one of the top surface air opening 203 and the side surface air opening 301 forms a main air inlet and the other forms a main air outlet according to the wind direction in the refrigerator, so that cold air entering the inside of the shell from the top surface air opening 203 or the side surface air opening 301 on the shell passes through the purification module, flows through an air flow channel between the purification module and the bottom plate 401 and then flows out of the shell from the top surface air opening 203 or the side surface air opening 301, a complete air path is formed, and the purification effect is good.
Further, referring to fig. 2, a detachable handle 70 is further installed on the outer side of the base 40, when the user uses the refrigerator, the purification device can be hung on a bottle seat, a storage box, a storage rack and the like inside the refrigerator through the handle 70, or the purification device can be flatly placed on the storage rack after the handle 70 is detached, so that the refrigerator is flexible and convenient to use and convenient to replace. When the user hangs the purification apparatus using the handle 70 and lays the purification apparatus flat with the handle 70 removed, the main air outlet and the main air inlet are interchanged.
Referring to fig. 9 to 11, the detailed structure of the base 40 and the handle 70 is shown.
A handle 70 is mounted to the outside of the base 40. A fixing seat 404 is formed in the bottom surface of the side of the base 40, which faces away from the main housing 30, in a concave manner, a fixing structure 405 is formed on the fixing seat 404, and the handle 70 is detachably connected to the fixing seat 404 through the fixing structure 405. Therefore, the fixing structure 405 connected with the handle 70 is arranged in the inwards concave fixing seat 404 on the base 40, so that the flatness of the bottom surface is not affected after the handle 70 is detached, and the purification device is convenient to place in the refrigerator.
Further, the fixing structure 405 includes a fixing block 4052 protruding from the inner bottom surface of the fixing base 404, the end of the handle 70 is U-shaped, when the handle 70 and the base 40 are in an assembled state, the fixing block 4052 is disposed between two side surfaces of the U-shaped end, at least one side wall of the U-shaped end is provided with a hook, and the fixing block 4052 is provided with a fixing groove 4051 matched with the hook. The hook realizes the installation and the disassembly with the fixed seat 404 through the self elastic force.
Further, the fixing base 404 has a receiving portion 4041 for receiving the U-shaped end portion of the handle 70, and a stopper 4042 protruding from an inner wall of the receiving portion on a side parallel to the fixing block 4052. Only one side of the U-shaped end is provided with a catch and the other side is disposed between the stop 4042 and the securing block 4052. The stopper 4042 can enhance the stability of the attachment of the handle 70 when the handle 70 is in the assembled state with the base 40; when the user desires to remove the handle 70, the user can rotate the handle toward the side of the stop 4042 and pull the handle outward to snap the catch out of engagement with the base 40. Thus, the handle 70 can be fixed only by arranging the hook on one side of the handle 70, and the handle is more labor-saving to assemble and disassemble.
Further, the protruding end surface of the fixing block 4052 is arc-shaped, and the U-shaped end portion of the handle 70 has an arc-shaped connecting wall 701 that matches the arc-shaped end surface of the fixing block 4052. Thus, when the user detaches the handle 70, the handle 70 can be easily rotated, and meanwhile, abrasion between the fixing block 4052 and the end portion of the handle 70 can be reduced.
One end of the stop 4042, which is far away from the inner bottom surface of the fixing base 404, extends in an outward-inward inclined manner, so that when a user installs the handle 70, one side of the U-shaped end portion is conveniently inserted between the fixing block 4052 and the stop 4042; when the user detaches the handle 70, the user rotates the handle toward the stopper 4042 side, and when the handle 70 abuts against the stopper 4042, the inclined end portion of the stopper 4042 allows the user to continuously apply force so that the hook is disengaged from the latching relationship, and the detachment convenience of the handle 70 can be improved.
Furthermore, the connecting wall 701 protrudes towards one side of the fixing block 4052 to form a limiting column 702, and a limiting groove 4053 matched with the limiting column 702 is formed in the fixing block 4052. The engagement of the retention post 702 with the retention groove 4053 can guide a user in installing the handle 70.
Further, the handle 70 further comprises a handle 703 connected to a side of the connecting wall 701 away from the fixing block 4052, and a gap is left between the handle 703 and the base 40, so that the purification device can be hung on a bottle seat, a shelf, and the like inside the refrigerator through the handle 70. The grip 703 has an anti-tip rib 704 protruding toward the base 40, and the edge of the anti-tip rib 704 is curved. When the user hangs purifier inside the refrigerator, prevent turning over muscle 704 can play the supporting role, guarantee the stability of purifier installation, prevent simultaneously that the edge of turning over muscle 704 can play the guide effect for the arc, be convenient for hang and can not harm other article when using.
Referring to fig. 4 and 5, a specific structure of the light guide 50 is shown.
The light guide 50 is bar-shaped, and the light guide 50 is provided with a light-gathering portion 501, and the indicator light is at least partially arranged in the light-gathering portion 501, and the shell is provided with a light-passing hole 107 corresponding to the light-gathering portion 501. Specifically, the light passing hole 107 is a through hole opened in the upper cover 10. Thus, the light emitted by the indicator light is converged by the light-condensing portion 501 of the light guide 50 and then displayed through the light-passing hole 107 of the housing, and the display effect is good.
The light-condensing portion 501 is a groove formed in the light guide 50, and a cross-sectional area of the light-condensing portion 501 near the light-transmitting hole 107 is smaller than that of the other side. Specifically, the inner wall surface of the light condensing portion 501 includes 4 trapezoidal surfaces connected to each other, and a side of the trapezoidal surface close to the light passing hole 107 is inclined toward the center of the light condensing portion 501. Therefore, the light condensation effect can be improved.
Further, the light guide member 50 is a transparent element, and light emitted by the indicator light is reflected and refracted by the inner wall surface of the light-gathering portion 501, so that the light is gathered to the light-gathering portion 501 toward the light-passing hole 107, and the display brightness of the indicator light is enhanced. The light guide member 50 further has a light gathering block 502 protruding from the light gathering portion 501 toward the side of the light through hole 107, and the light gathering block 502 is disposed in the light through hole 107. Thus, the light-gathering block 502 is arranged to prevent the light from directly emitting to stimulate the eyes of the user.
Referring to fig. 4 to 8, the light guide 50 is further provided with a positioning hole 503, the upper cover 10 is provided with a positioning column 103 matching with the positioning hole 503, and the light guide 50 is mounted on the upper cover 10 through the matching of the positioning hole 503 and the positioning column 103. The sectional area of one side of the positioning hole 503 close to the upper cover 10 is smaller than that of the other side, the length of the positioning column 103 is larger than that of the positioning hole 503, the positioning column 103 is placed in the positioning hole 503, the melt after the hot melting of the positioning column 103 is filled in the positioning hole 503, and the light guide 50 is fixedly installed on the upper cover 10 after the melt of the positioning column 103 is solidified.
Specifically, two positioning holes 503 are provided, and are respectively located at two sides of the light-gathering portion 501, the positioning holes 503 include a matching portion 5031 and a material accommodating portion 5032, the matching portion 5031 is close to one side of the upper cover 10, and the matching portion 5031 is matched with the positioning column 103 in shape, so that the installation and positioning are facilitated. The material receiving portion 5032 is a tapered hole for receiving the melted material of the positioning post 103. When the positioning rod 103 is melted, the melt is completely filled in the material receiving portion 5032, and the melt does not extend out of the positioning hole 503 after solidification, so that there is no need to provide a separate fixing structure for installing the light guide 50, and the light guide 50 does not interfere with other components in the housing. When the light guide member 50 is installed between the upper cover 10 and the timing circuit board 60, the timing circuit board 60 is installed after the light guide member 50 is installed and fixed, thereby facilitating the installation of the timing circuit board 60.
Referring to fig. 6 to 8, a detailed structure and a mounting structure of the timing circuit board 60 are shown.
Be provided with the timing circuit on the timing circuit board 60, be connected with the pilot lamp on the timing circuit board 60, the timing circuit starts to time to preset duration, can send the suggestion through the pilot lamp, and the suggestion user purifies the module and has become invalid, needs to change. The timing circuit board 60 is mounted on the inner side of the upper cover 10, the inner side of the upper cover 10 is provided with a support rib 101, the timing circuit board 60 is supported on the support rib 101, a gap is reserved between the timing circuit board 60 and the upper cover 10, waterproof glue is filled in the gap between the timing circuit board 60 and the upper cover 10, and the surface of the timing circuit board 60, which faces away from the upper cover 10, is coated with the waterproof glue, namely the surface of the timing circuit board 60, which faces the bottom of the main housing 30, is coated with the waterproof glue. Thus, when the purification device is installed inside the refrigerator, the water vapor inside the refrigerator can be prevented from damaging the timing circuit board 60 to cause the failure of the life prompting module.
Further, the timing circuit board 60 is circular, the support rib 101 includes at least two arc rib plates arranged at intervals, and the edge of the timing circuit board 60 is supported on the arc rib plates. Therefore, waterproof glue can be conveniently injected from the intervals among the multiple sections of arc-shaped rib plates, and the multiple sections of arc-shaped rib plates can prevent the waterproof glue from leaking.
The inner side of the upper cover 10 is further provided with a hook, the edge of the timing circuit board 60 is provided with a notch, the hook extends into the notch at the edge of the timing circuit board 60, and the hook is fastened on the surface of the timing circuit board 60 so as to fix the timing circuit board 60 on the upper cover 10. Specifically, in the assembled state, the hooks and the multi-section arc rib plates are distributed at intervals along the edge of the timing circuit board 60.
Further, the life prompting module further includes a battery 603, and the battery 603 is used for supplying power to the timing circuit board 60. The service life prompting module further comprises a timing control switch, the timing control switch is used for connecting or disconnecting the electric connection between the battery 603 and the timing circuit board 60, and the timing control switch comprises a control elastic sheet 601 and a contact spacer 602. The connection circuit between the timer circuit board 60 and the battery 603 is provided with a first electrical contact 605 and a second electrical contact 606 which are opened, and when the first electrical contact 605 and the second electrical contact 606 are turned on, the battery 603 supplies power to the timer circuit board 60. One end of the control spring 601 is fixed on the timing circuit board 60 and electrically connected to the first electrical contact 605, and the other end is a cantilever and provided with a protrusion facing the second electrical contact 606, which can be electrically connected to the second electrical contact. A contact spacer 602 passes through the housing and is disposed at one end between the boss of the control dome 601 and the second electrical contact 606, and a user can pull on the contact spacer 602 to remove the contact spacer 602. The control shrapnel 601 is a conductor, the contact spacer 602 is an insulator, when one end of the contact spacer 602 is arranged between the bulge of the control shrapnel 601 and the second electric contact 606, the electric connection between the timing circuit board 60 and the battery 603 is disconnected, when the contact spacer 602 is removed, the bulge of the control shrapnel 601 is contacted with the second electric contact 606, the control shrapnel 601 is communicated with the first electric contact 605 and the second electric contact 606, the electric connection between the battery 603 and the timing circuit is conducted, and the timing circuit starts to work, so that a user can remove the contact spacer 602 during use, start the service life prompting module, and improve the accuracy of service life prompting.
Further, a through hole is formed in the timing circuit board 60, a screw post 102 corresponding to the through hole is formed in the upper cover 10, and one end of the control elastic sheet 601 is fixed to the upper cover 10 through a screw. The first electric contact is arranged at the through hole, the screw can electrically connect the first electric contact with the control elastic sheet 601 while fixing the control elastic sheet 601, and the electric switch is simple in structure and convenient to install and manufacture.
The control spring plate 601 is L-shaped, one end of the control spring plate is further provided with a folded edge 6011 bent towards the timing circuit board 60, a slot 604 matched with the folded edge 6011 is formed in the timing circuit board 60, and the folded edge 6011 is inserted into the slot 604 to mount and position the control spring plate 601, so that a protrusion on the control spring plate 601 can be in contact with the second electrical contact 606.
On the surface of the timing circuit board 60 opposite to the upper cover 10, except the covered positions of the first electric contact 605, the second electric contact 606 and the control elastic sheet 601, the other areas are coated with waterproof glue, and the setting of the timing control switch facilitates the control of the opening of the service life prompting module and the coating of the waterproof glue.
Further, referring to fig. 1 and 9, an opening is provided between the base 40 and the main housing 30, and the other end of the contact spacer 602 passes out between the base 40 and the main housing 30. Specifically, the mounting rib 406 protruding toward the top along the edge of the bottom plate 401 is further provided with a cut-off opening for inserting the contact spacer 602.
The invention also provides a manufacturing method of the purification device, which is characterized by comprising the following steps:
the timing circuit board 60 is placed on the support ribs 101 on the inner side of the housing;
a waterproof adhesive is filled in a gap between the case and the timing circuit board 60 and coated on the outer surface of the timing circuit board 60.
Wherein, the housing comprises a main housing 30, the main housing 30 has a top, a bottom opposite to the top and a side wall connecting the top and the bottom, the housing further comprises an upper cover 10 connected at the top of the main housing 30, and a support rib 101 is arranged on the inner surface of the upper cover 10. The outer surface of the timing circuit board 60 is the surface facing away from the upper cover 10.
Further, the method also includes a step before the step of placing the timing circuit board 60 on the support ribs 101 inside the housing:
matching the positioning hole 503 of the light guide 50 with the positioning column 103 on the housing to mount the light guide 50 at a predetermined position;
the positioning post 103 is melted by heat melting, so that the positioning hole 503 is filled with the melted material of the positioning post 103.
Specifically, the cross-sectional area of the positioning hole 503 near one side of the housing is smaller than the cross-sectional area of the other side, the positioning hole 503 includes a matching portion 5031 and a material accommodating portion 5032, the matching portion 5031 is matched with the positioning column 103 for installation and positioning, the cross-sectional area of the material accommodating portion 5032 is larger than the positioning column 103 for accommodating the melt of the positioning column 103, and after the melt of the positioning column 103 is solidified, the light guide 50 is fixed on the upper cover 10.
Further, the method comprises the steps before the step of filling waterproof glue in the gap between the shell and the timing circuit board 60 and coating the waterproof glue on the outer surface of the timing circuit board 60:
inserting the through hole of the timing circuit board 60 into the screw post 102 of the housing;
the folded edge 6011 at one end of the control spring plate 601 is inserted into the slot 604 of the timing circuit board 60, and the control spring plate 601 is fixed by screws.
Further, "placing the timer circuit board 60 on the support rib 101 inside the case" includes:
the notch at the edge of the timing circuit board 60 is matched with the hook at the inner side of the shell;
pressing the timing circuit board 60 elastically deforms the hook to fixedly support the timing circuit board 60 on the support rib 101.
In the specific embodiment, the timing circuit board 60 is circular, the support ribs 101 include arc-shaped rib plates arranged at intervals, the hooks and the arc-shaped rib plates are distributed at intervals and are distributed along the edge of the timing circuit board 60, and waterproof glue is injected into the gap between the timing circuit board 60 and the shell at intervals between the arc-shaped rib plates.
In the embodiment, when manufacturing the purification apparatus, the positioning hole 503 of the light guide 50 is first matched with the positioning post 103 on the upper cover 10 to mount the light guide 50 at a predetermined position, and then the positioning post 103 is hot-melted, the molten material melted by the positioning post 103 is filled in the positioning hole 503, and when the molten material is solidified, the light guide 50 is fixed on the upper cover 10. Then, the notch of the timing circuit board 60 is engaged with the hook on the upper cover 10, and the timing circuit board 60 is pressed to fix the timing circuit board 60 on the support rib 101 of the upper cover 10. The folded edge 6011 at one end of the control spring plate 601 is inserted into the slot 604 of the timing circuit board 60, and the control spring plate 601 is fixed by screws.
After the elements on the upper cover 10 are installed in place, waterproof glue is injected into the gap between the timing circuit board 60 and the upper cover 10 through the interval between the support ribs 101, so that the waterproof glue fills the gap between the timing circuit board 60 and the upper cover 10, and the waterproof glue is coated on the surface of one side of the timing circuit board 60, which is far away from the upper cover 10, so that the timing circuit board 60 is prevented from being damaged by water vapor. A contact spacer 602 is inserted between the control spring 601 and the second electrical contact of the timing circuit board 60 after the waterproof adhesive is cured.
The second air deflection plate 202 is mounted on the first air deflection plate 201 with the folded over 205 positioning of the inner ring of the second air deflection plate 202. Then, the guide posts 104 of the upper cover 10 are inserted into the guide holes 204 of the air guiding plate, and the upper cover 10 is pressed to fix the upper cover 10 to the main housing 30. The purification module is placed in the enclosure frame 403 of the base 40, the guide plate 303 of the main housing 30 and the base 40 are inserted into the corresponding guide notch 407 of the base 40, the contact spacer 602 is passed out from the gap between the base 40 and the main housing 30, and the main housing 30 is pressed to fix the main housing 30 and the base 40.
Although the description is given in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (14)
1. The utility model provides a purification device, includes the casing, arranges in purification module and life-span suggestion module in the casing, the casing includes the main casing body, the main casing body have the top, with relative bottom in top and connection the top with the lateral wall of bottom, purification module arranges in the top with between the bottom, life-span suggestion module includes the timing circuit board, a serial communication port, be connected with the upper cover on the top, the upper cover inboard is provided with the brace rod, the timing circuit board supports on the brace rod with the upper cover with form the clearance between the timing circuit board, it has waterproof glue to fill in the clearance, the timing circuit board orientation the surface coating of bottom has waterproof glue.
2. The purification device according to claim 1, wherein the timing circuit board is circular, the support rib comprises at least two sections of arc-shaped rib plates arranged at intervals, and the arc-shaped rib plates are supported on the edge of the timing circuit board.
3. The purifying apparatus according to claim 2, wherein the life prompting module further comprises an indicator light and a light guide member, the light guide member has a light-gathering portion thereon, the indicator light is disposed in the light-gathering portion, the light guide member is disposed in the gap, and the light guide member and the arc rib are spaced apart from each other and disposed at an edge of the timing circuit board.
4. The purification apparatus as claimed in claim 3, wherein the light guide member has a positioning hole, the positioning hole has a smaller cross-sectional area on one side thereof adjacent to the upper cover than on the other side thereof, the upper cover has a positioning post engaged with the positioning hole, the positioning post has a length greater than that of the positioning hole, and the positioning post is melted and filled in the positioning hole after being melted.
5. The purification apparatus as claimed in claim 4, wherein the positioning hole includes an engaging portion and a material accommodating portion, the engaging portion is adjacent to one side of the upper cover, the engaging portion is in shape fit with the positioning post, and the material accommodating portion has a trapezoidal cross section along a direction parallel to a height direction of the positioning hole.
6. The purification apparatus according to claim 3, wherein hooks are further disposed on an inner side of the upper cover, the hooks are spaced from the arc rib plate along an edge of the timing circuit board, notches are disposed on an edge of the timing circuit board, the notches are engaged with the hooks, and the hooks are hooked on a surface of the timing circuit board.
7. The purification apparatus of claim 6, wherein the purification module is supported between the top portion and the bottom portion, and a retainer plate is disposed on the upper cover and abuts the purification module.
8. The purification device of claim 2, wherein the life prompting module further comprises a battery for supplying power to the timing circuit board and a timing control switch for connecting or disconnecting the battery with or from the timing circuit board, a first electrical contact and a second electrical contact for disconnection are arranged on a connection circuit of the timing circuit board and the battery, the timing control switch comprises a control spring piece and a contact spacer penetrating through the shell, one end of the control spring piece is fixed on the timing circuit board and electrically connected with the first electrical contact, the other end of the control spring piece is in a cantilever shape and provided with a bulge facing the second electrical contact, and one end of the contact spacer is arranged between the bulge and the second electrical contact to block the electrical connection between the bulge and the second electrical contact.
9. The purification apparatus as claimed in claim 8, wherein the timing circuit board is provided with a through hole, the upper cover is provided with a screw post corresponding to the through hole, the first electrical contact is disposed at the through hole, and one end of the control spring is fixed to the screw post by a screw and electrically connected to the first electrical contact by the screw.
10. The purification apparatus as claimed in claim 9, wherein the control spring is L-shaped, and has a downward bent flange at one end, and the timing circuit board is provided with a slot hole matching with the flange.
11. A method of manufacturing a purification apparatus, comprising the steps of:
placing the timing circuit board on the support ribs on the inner side of the shell;
and filling waterproof glue in a gap between the shell and the timing circuit board and coating the waterproof glue on the surface of the timing circuit board facing to the bottom of the shell.
12. The manufacturing method of the purification apparatus of claim 11, further comprising, before the step of "placing the timing circuit board on the support ribs inside the casing", the step of:
matching the positioning hole of the light guide piece with the positioning column on the shell to install the light guide piece at a preset position;
and melting the positioning column by hot melting so as to fill the melting material of the positioning column into the positioning hole.
13. The manufacturing method of the purification apparatus according to claim 11, wherein before the step of "filling a waterproof adhesive in a gap between the housing and the timing circuit board and coating a waterproof adhesive on a surface of the timing circuit board facing a bottom of the housing", further comprising the step of:
inserting the through hole on the timing circuit board into the screw post of the shell;
and inserting the folded edge at one end of the control elastic sheet into the slotted hole on the timing circuit board, and fixing the control elastic sheet by using a screw.
14. The manufacturing method of a purification apparatus according to claim 11, wherein the step of "placing the timer circuit board on the support ribs inside the casing" includes the steps of:
matching a notch on the timing circuit with a clamping hook on the inner side of the shell;
and pressing the timing circuit board to make the hook elastically deform so as to fix the timing circuit board on the support rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/082766 WO2021190572A1 (en) | 2020-03-25 | 2021-03-24 | Purification apparatus and manufacturing method for purification apparatus |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102169490 | 2020-03-25 | ||
| CN202010216949 | 2020-03-25 |
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| Publication Number | Publication Date |
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| CN113440972A true CN113440972A (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010472131.5A Pending CN113440972A (en) | 2020-03-25 | 2020-05-29 | Purification device and method for manufacturing purification device |
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| CN (1) | CN113440972A (en) |
| WO (1) | WO2021190572A1 (en) |
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| WO2021190572A1 (en) | 2021-09-30 |
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