CN219345035U - Filter screen detection device and fan - Google Patents
Filter screen detection device and fan Download PDFInfo
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- CN219345035U CN219345035U CN202223074306.0U CN202223074306U CN219345035U CN 219345035 U CN219345035 U CN 219345035U CN 202223074306 U CN202223074306 U CN 202223074306U CN 219345035 U CN219345035 U CN 219345035U
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- 238000001514 detection method Methods 0.000 title claims abstract description 76
- 230000013011 mating Effects 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to a filter screen detection device and a fan, and relates to the technical field of fans. The filter screen detection device comprises an air duct structure, a control panel, a detection unit and a trigger unit. When the trigger unit is at the first position, the trigger unit can be in contact with the filter screen, so that the detection unit is in the first state, and the detection signal is fed back to the control board. Therefore, when the control board receives the detection signal fed back by the detection unit, the control board indicates that the filter screen is arranged in the air duct structure, and the control board can give a prompt to a user, so that the user can conveniently and rapidly acquire whether the filter screen is arranged in the air duct structure through the indication state of the control board.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a filter screen detection device and a fan.
Background
The existing fan is generally provided with a filter screen, and the problem of filter screen leakage exists in the installation process or the self-disassembly and replacement process of a user. However, the existing fans do not perform independent detection on whether the filter screen is installed therein, so that a user cannot intuitively and rapidly confirm whether the filter screen is installed in the fan; in addition, since the filter screen is prone to dust blockage after long-term use, and thus the performance of the fan is reduced, the filter screen needs to be replaced at the end of its service life, but the current fan does not detect the service life of the filter screen, so that a user cannot determine whether the filter screen has reached the replacement time.
Disclosure of Invention
The utility model provides a filter screen detection device and a fan, which are used for at least solving one technical problem.
According to a first aspect of the present utility model, there is provided a screen detection device comprising:
the side part of the air duct structure is used for installing a filter screen;
the control panel is arranged on the air duct structure;
the detection unit is arranged on the air duct structure and is electrically connected with the control panel, and the detection unit is in a first state; and
a trigger unit movably disposed on the air duct structure, the trigger unit having a first position;
when the trigger unit is at the first position, the trigger unit can be in contact with the filter screen, so that the detection unit is in the first state, and a detection signal is fed back to the control panel.
In one embodiment, the detection unit includes a micro switch including:
the body is fixedly connected with the air duct structure;
a wiring part which is arranged on the body and is electrically connected with the control board; and
the induction spring piece is arranged on the body;
when the detection unit is in a first state, the sensing spring plate is communicated with the body, so that the wiring part feeds back detection signals to the control panel.
In one embodiment, the detection unit further has a second state, and when the detection unit is in the second state, the sensing spring sheet is disconnected from the body;
wherein the sensing spring piece is configured to change relative position with the body when the sensing spring piece is subjected to force, so that the sensing spring piece is communicated with the body; when the acting force is removed, the relative position of the sensing spring piece and the body is restored to the initial position, so that the sensing spring piece is disconnected from the body.
In one embodiment, the control board is provided with a micro switch terminal, and the wiring part is connected with the micro switch terminal through a cable.
In one embodiment, the air duct structure is provided with a matching hole therein, and the triggering unit includes:
a fitting post for fitting with the fitting hole and movable in the fitting hole;
the filter screen sensing part is arranged at one side of the matched column; and
a top pressing part arranged at the other side of the matched column;
when the trigger unit is at a first position, the filter screen sensing part is in contact with the filter screen, and pushes the matching column to move in the matching hole, so that the force is applied to the sensing elastic sheet through the top pressing part, and the sensing elastic sheet and the body are closed.
In one embodiment, the air duct structure is provided with a first positioning part and a second positioning part, the body is provided with a positioning hole, the positioning hole is matched with the first positioning part, and the body and the second positioning part form interference fit, so that the micro switch is fixed on the air duct structure.
In one embodiment, the air duct structure is further provided with a control board fastener, and the control board is further provided with a buckling part, and the buckling part is matched with the control board fastener to fix the control board on the air duct structure.
In one embodiment, a filter screen mounting part for accommodating a filter screen is arranged on one side of the air duct structure, and at least one supporting structure is arranged on the inner side of the filter screen mounting part and is used for being clamped with a side supporting surface of the filter screen;
one side of the filter screen facing the filter screen mounting part is used for being connected with the filter screen sensing part so as to apply a pushing force.
In one embodiment, the air duct structure further comprises a mesh cover, wherein the mesh cover is connected with the air duct structure through a turnbuckle and/or a fastener and is used for fixing the filter screen between the mesh cover and the air duct structure; the outside of screen panel is provided with the rib.
According to a second aspect of the present utility model, the present utility model provides a fan, which includes the above filter screen detection device, and further includes a filter screen, where the filter screen is a filter screen with a purifying function.
Compared with the prior art, the utility model has the advantages that when the trigger unit is at the first position, the trigger unit can be in contact with the filter screen, so that the detection unit is in the first state, and the detection signal is fed back to the control board. Therefore, when the control board receives the detection signal fed back by the detection unit, the control board indicates that the filter screen is arranged in the air duct structure, and the control board can give a prompt to a user, so that the user can conveniently and rapidly acquire whether the filter screen is arranged in the air duct structure through the indication state of the control board.
Further, when the control board receives the detection signal fed back by the detection unit, the control board can record the installation time of the filter screen, so that the service life of the filter screen can be timed, and the service life of the filter screen is prompted to a user. Therefore, a user can conveniently and quickly know the use state of the filter screen through the indication time of the control panel, and can timely or periodically replace the filter screen so as to ensure the circulating air quantity of the fan.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
FIG. 1 is an exploded view of a screen detection device in a perspective configuration in accordance with an embodiment of the present utility model;
FIG. 2 is a front view of the airway structure of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2 at E-E, wherein the mesh enclosure is not shown;
FIG. 4 is an enlarged view of FIG. 3 at I;
FIG. 5 is a bottom view of the airway structure of FIG. 1;
FIG. 6 is a top view of the airway structure of FIG. 1;
FIG. 7 is a perspective view of the trigger unit of FIG. 1;
fig. 8 is a perspective view of the sensing unit of fig. 1;
fig. 9 is a perspective view of the control board of fig. 1;
fig. 10 is a top view of the control panel of fig. 1;
fig. 11 is a front view of the screen of fig. 1;
FIG. 12 is a cross-sectional view of the mesh enclosure of FIG. 1 at A-A;
FIG. 13 is a perspective view of the screen of FIG. 1;
FIG. 14 is a cross-sectional view of a screen detection device in an embodiment of the utility model, showing a screen;
FIG. 15 is an enlarged view of FIG. 14 at A with the trigger unit in a first position;
fig. 16 is a schematic view of the trigger unit in a second position.
Reference numerals:
1. an air duct structure; 2. a control board; 3. a micro-switch; 30. a detection unit;
4. a trigger unit; 5. a filter screen; 6. a mesh enclosure;
11. the control panel is buckled; 12. a mating hole; 13. a filter screen mounting part; 14. a support structure; 15. screw holes; 16. a first positioning portion; 17. a second positioning portion; 18. a first turnbuckle;
21. a buckling part; 22. a microswitch terminal;
31. positioning holes; 32. a wiring section; 33. an induction spring plate; 34. a body;
41. a mating post; 42. a pressing part; 43. a filter screen sensing part;
51. a side support surface; 52. a mounting surface;
61. a second turnbuckle; 62. a connection hole; 63. rib.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 13, the utility model provides a filter screen detection device, which comprises an air duct structure 1, a control panel 2, a detection unit 30 and a trigger unit 4. Wherein the side of the air duct structure 1 is used for installing a filter screen 5. The control panel 2 is arranged on the air duct structure 1. The detection unit 30 is disposed on the air duct structure 1 and electrically connected with the control board 2, and the detection unit 30 has a first state and a second state. The trigger unit 4 is movably arranged on the air duct structure 1, the trigger unit 4 having a first position and a second position.
Wherein, when the trigger unit 4 is at the first position, the trigger unit 4 can contact with the filter screen 5, so that the detection unit 30 is in the first state to feed back the detection signal to the control board 2. Conversely, when the trigger unit 4 is in the second position, the trigger unit 4 is not in contact with the filter screen 5, so that the detection unit 30 is in the second state, which does not feed back the detection signal to the control board 2.
Therefore, when the control board 2 receives the detection signal fed back by the detection unit 30, it indicates that the filter screen 5 is installed in the air duct structure 1, and the control board 2 can send a prompt (such as a manner of lighting an indicator light thereon, etc.) to the user, so that the user can conveniently and quickly obtain whether the filter screen 5 is installed in the air duct structure 1 through the indication state of the control board 2. And further, when the control board 2 receives the detection signal fed back by the detection unit 30, the control board 2 records the installation time of the filter screen 5, so that the service life of the filter screen 5 can be timed, and the service life of the filter screen 5 can be indicated to a user. Therefore, the user can conveniently and rapidly know the use state of the filter screen 5 through the indication time of the control panel 2, and can timely (for example, when the service life of the filter screen 5 is about to be terminated) or periodically replace the filter screen 5, so as to ensure that the circulating air quantity, the filtering performance and the like of the fan are always at a higher level, so as to maintain the optimal use state, thereby bringing high-quality circulating and purifying experience to the user.
Specifically, as shown in fig. 8, the detection unit 30 includes a micro switch 3, and the micro switch 3 includes a body 34, a wire connection portion 32, and a sensing spring piece 33. Wherein the body 34 is fixedly connected with the air duct structure 1. The wiring portion 32 is provided on the body 34 and is electrically connected to the control board 2. Wherein, the sensing spring piece 33 is configured such that when the sensing spring piece 33 receives a force, the relative position of the sensing spring piece and the body 34 changes, so that the sensing spring piece 33 is conducted with the body 34; when the force thereon is removed, the relative position with the body 34 is restored to the original position, thereby disconnecting the sensing spring 33 from the body 34.
For example, the sensing spring 33 is obliquely disposed on the body 34, so in an initial state (i.e. no force is applied thereon), an included angle is formed between the sensing spring 33 and the body 34 (as shown in fig. 8), so that the moving contact on the sensing spring 33 is not connected to the fixed contact on the body 34, and the sensing spring 33 is disconnected from the body 34, so that the detecting unit 30 is in a second state without feedback of signals. On the contrary, when the force is applied to the sensing spring 33, the relative position between the sensing spring 33 and the body 34 is changed, and the clamping angle between the sensing spring 33 and the body 34 is changed to 0 or is close to 0, so that the moving contact on the sensing spring 33 is quickly connected with the fixed contact on the body 34, the sensing spring 33 is conducted with the body 34, that is, the detecting unit 30 is in the first state, and the wiring portion 32 feeds back the detecting signal to the control board 2.
As shown in fig. 9 and 10, the control board 2 is provided with the micro switch terminal 22, and the wiring portion 32 is connected to the micro switch terminal 22 by a cable, so that the detection unit 30 feeds back a detection signal to the control board 2 through the wiring portion 32. The control board 2 controls the indication lamp on the control board to be on according to the detection signal fed back by the wiring part 32, thereby indicating that the filter screen 5 is arranged in the air duct structure 1.
As shown in fig. 2, 3 and 4, the air duct structure 1 is provided with a matching hole 12; as shown in fig. 7, the trigger unit 4 includes a mating post 41, a screen sensing portion 43, and a pressing portion 42. The engagement post 41 is adapted to engage the engagement hole 12 and is movable within the engagement hole 12. The screen sensing part 43 is disposed on one side of the mating post 41 near the screen 5, and the pressing part 42 is disposed on one side of the mating post 41 near the detecting unit 30.
With reference to fig. 14 and 15, when the filter screen 5 is installed in the air duct structure 1, the filter screen 5 may push the trigger unit 4, so that the trigger unit 4 is located at the first position. Specifically, when the trigger unit 4 is at the first position, the filter screen sensing portion 43 contacts with the filter screen 5, and the filter screen 5 pushes the filter screen sensing portion 43 and pushes the mating post 41 to move in the mating hole 12, so that the force can be applied to the sensing spring 33 by the pressing portion 42 (refer to fig. 15), so that the sensing spring 33 and the body 34 are closed, the detecting unit 30 is in the first state, and the detecting unit 30 can feed back the detecting signal to the control board 2 through the wiring portion 32. On the contrary, if the filter screen 5 is not installed in the air duct structure 1, the filter screen sensing portion 43 of the trigger unit 4 is not pushed, so that the pressing portion 42 does not exert a force on the sensing elastic piece 33, the sensing elastic piece 33 opens under the action of its own elastic force, and the sensing elastic piece 33 is disconnected from the body, so that the detection unit 30 is in the second state, the detection unit 30 does not feed back a detection signal to the control board 2, and at this time, the indicator light on the control board 2 is turned off, thereby quickly and conveniently determining whether the filter screen 5 is installed in the air duct structure 1.
Referring to fig. 16, if the filter screen 5 is not installed in the air duct structure 1, the filter screen sensing portion 43 of the trigger unit 4 is not pushed, and the sensing spring 33 opens under the action of its own elastic force, so as to push the top pressing portion 42 of the trigger unit 4, so that the engaging post 41 moves in the direction opposite to the above direction in the engaging hole 12 until the rear end surface of the top pressing portion 42 is attached to the wall of the air duct structure 1.
As shown in fig. 15 and 16, for convenience of injection molding, the mating post 41 is configured as a hollow member. It will be appreciated that the mating posts 41 may also be solid members or other structural forms. Therefore, the induction of the micro switch 3 to the filter screen 5 can be realized by only using one trigger unit 4 as a conducting part, and the micro switch is more economical and practical.
As shown in fig. 7, the diameter of the pressing portion 42 is larger than the diameter of the fitting post 41, i.e., the trigger unit 4 is formed in the form of a stepped post such that the trigger unit 4 is located at one side of the fitting hole 12 without falling into the fitting hole 12.
As shown in fig. 5, the air duct structure 1 is provided with a first positioning portion 16 and a second positioning portion 17; as shown in fig. 8, the body 34 is provided with a positioning hole 31, the positioning hole 31 is matched with the first positioning portion 16, and the body 34 and the second positioning portion 17 form interference fit, so that the micro switch 3 is fixed on the air duct structure 1.
Specifically, the first positioning portion 16 may be a positioning post that mates with the positioning hole 31 on the body 34, and in addition, the second positioning portion 17 may be a positioning rib or a positioning rib plate that conforms to the outer contour shape of the body 34, when the positioning hole 31 on the body 34 is inserted into the first positioning portion 16, the body 34 is integrally defined by the second positioning portion 17, and the two form an interference fit, so that the body 34 is fastened on the air duct structure 1. By fixing the body 34, the relative position between the sensing spring 33 and the body 34 can be changed when a force is applied to the sensing spring 33 on the body 34.
Therefore, the detection unit 30 (the micro switch 3) is connected with the air duct structure 1 in a clamping manner, so that fasteners such as screws and the like are omitted, and the installation and the use are simpler and more convenient; and the layout of the structure, the safety wiring and the arrangement of the control board 2 can be perfectly adapted.
As shown in fig. 6, the air duct structure 1 is further provided with a control board buckle 11; as shown in fig. 9 and 10, the control board 2 is further provided with a plurality of fastening parts 21, wherein the number of fastening parts 21 may be plural, and the plurality of fastening parts 21 may be provided at the edge of the control board 2. The control board buckles 11 can be arranged in one-to-one correspondence with the buckling parts 21, and the buckling parts 21 are matched with the control board buckles 11 so as to fix the control board 2 on the air duct structure 1.
As shown in fig. 1 and 2, one side of the air duct structure 1 is provided with a filter screen mounting portion 13 for accommodating the filter screen 5, and at least one support structure 14 is provided on the inner side of the filter screen mounting portion 13, where the support structure 14 is used to engage with a side support surface 51 (as shown in fig. 13) of the filter screen 5. The support structure 14 may be, for example, a support rib, and the present utility model is not limited to the specific structure, as long as it is a structure that can engage with the side support surface 51 of the screen 5.
As shown in fig. 13, a side of the screen 5 facing the screen mounting portion 13 is used at a junction with the screen sensing portion 43 to apply a pushing force. Wherein the screen mounting portion 13 is configured as a recess with the support structure 14 on the inner side wall of the recess. The two sides of the screen 5 may be provided in a symmetrical structure so that each of the two sides of the screen 5 may be used as a mounting surface. When the filter screen 5 is installed, the installation surface of the filter screen 5 is attached to the mating surface (inner bottom wall) of the filter screen installation portion 13, and the side supporting surface 51 of the filter screen 5 is clamped into the supporting structure 14, so that the pre-installation of the filter screen 5 and the air duct structure 1 is completed. Therefore, the user can easily perform the operation at the time of replacement.
After the filter screen 5 is installed, the installation surface of the filter screen 5 is in contact with the filter screen sensing part 43, so that the matching column 41 moves in the matching hole 12, and thus the force can be applied to the sensing spring piece 33 through the top pressing part 42, so that the sensing spring piece 33 and the body 34 are closed, and the detection unit 30 is in the first state, namely, the detection unit feeds back a detection signal to the control board 2 through the wiring part 32.
As shown in fig. 1, 11 and 12, the filter screen detection structure of the present utility model further includes a mesh enclosure 6, where the mesh enclosure 6 is connected to the air duct structure 1 by a turnbuckle and/or a fastener, and is used to fix the filter screen 5 between the mesh enclosure 6 and the air duct structure 1. Specifically, the edge of the mesh enclosure 6 is provided with a second turnbuckle 61, the circumferential edge of the inner side wall of the air duct structure 1 is provided with a first turnbuckle 18, and the second turnbuckle 61 is matched with the first turnbuckle 18, so that the mesh enclosure 6 is connected with the air duct structure 1.
Further, the mesh enclosure 6 is further provided with a connecting hole 62, and the fastener passes through the connecting hole and is fixedly connected with the air duct structure 1, so that the mesh enclosure 6 is fixed with the air duct structure 1, and the filter screen 5 is fixed between the air duct structure 1 and the mesh enclosure 6, thereby not only meeting the national mechanical safety standard, but also being convenient to assemble and disassemble relatively.
Further, as shown in fig. 11, ribs 63 are provided on the outer side of the mesh enclosure 6. The ribs 63 are configured to diverge radially from a central hole of the mesh enclosure 6 toward an edge of the mesh enclosure 6, and each rib 63 extends in a curved pattern having a certain radian in a radial direction of the mesh enclosure 6. The ribs 63 may be plural, and the plural ribs 63 may be arranged at equal intervals or unequal intervals along the axial direction of the mesh enclosure 6.
According to a second aspect of the present utility model, the present utility model also provides a fan capable of achieving an air cleaning function. Specifically, it includes above-mentioned filter screen 5 detection device and filter screen 5, and wherein, filter screen 5 is the filter screen 5 that has purification function (for example removes formaldehyde function) to improve purification efficiency. Furthermore, the filter screen 5 may be mounted on the rear side of the tunnel structure 1, i.e. in the form of a rear fan.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. A screen detection device, comprising:
the side part of the air duct structure is used for installing a filter screen;
the control panel is arranged on the air duct structure;
the detection unit is arranged on the air duct structure and is electrically connected with the control panel, and the detection unit is in a first state; and
a trigger unit movably disposed on the air duct structure, the trigger unit having a first position;
when the trigger unit is at the first position, the trigger unit can be in contact with the filter screen, so that the detection unit is in the first state, and a detection signal is fed back to the control panel.
2. The screen detection device of claim 1, wherein the detection unit comprises a micro switch comprising:
the body is fixedly connected with the air duct structure;
a wiring part which is arranged on the body and is electrically connected with the control board; and
the induction spring piece is arranged on the body;
when the detection unit is in a first state, the sensing spring plate is communicated with the body, so that the wiring part feeds back detection signals to the control panel.
3. The screen detection device of claim 2, wherein the detection unit further has a second state, and wherein the sensing dome is disconnected from the body when the detection unit is in the second state;
wherein the sensing spring piece is configured to change relative position with the body when the sensing spring piece is subjected to force, so that the sensing spring piece is communicated with the body; when the acting force is removed, the relative position of the sensing spring piece and the body is restored to the initial position, so that the sensing spring piece is disconnected from the body.
4. A screen detection device according to claim 2 or 3, wherein the control board is provided with a micro switch terminal, and the wiring portion is connected to the micro switch terminal through a cable.
5. A screen detection apparatus as claimed in claim 2 or claim 3, wherein the duct structure has a mating aperture therein, the trigger unit comprising:
a fitting post for fitting with the fitting hole and movable in the fitting hole;
the filter screen sensing part is arranged at one side of the matched column; and
a top pressing part arranged at the other side of the matched column;
when the trigger unit is at a first position, the filter screen sensing part is in contact with the filter screen, and pushes the matching column to move in the matching hole, so that the force is applied to the sensing elastic sheet through the top pressing part, and the sensing elastic sheet and the body are closed.
6. A screen detection device according to claim 2 or claim 3, wherein the air duct structure is provided with a first positioning portion and a second positioning portion, the body is provided with a positioning hole, the positioning hole is matched with the first positioning portion, and the body is in interference fit with the second positioning portion, so that the micro switch is fixed on the air duct structure.
7. A screen detection apparatus as claimed in any one of claims 1 to 3 wherein the duct structure is further provided with a control panel snap, the control panel being further provided with a snap-fit portion which mates with the control panel snap-fit to secure the control panel to the duct structure.
8. The filter screen detection device according to claim 5, wherein a filter screen mounting portion for accommodating a filter screen is provided on one side of the air duct structure, and at least one support structure is provided on an inner side of the filter screen mounting portion, the support structure being for being engaged with a side support surface of the filter screen;
one side of the filter screen facing the filter screen mounting part is used for being connected with the filter screen sensing part so as to apply a pushing force.
9. A screen detection apparatus as claimed in any one of claims 1 to 3, further comprising a screen, the screen being connected to the duct structure by a turnbuckle and/or fastener for securing the screen between the screen and the duct structure; the outside of screen panel is provided with the rib.
10. A fan comprising the filter screen detection apparatus according to any one of claims 1 to 9, further comprising a filter screen, the filter screen being a filter screen having a purifying function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074306.0U CN219345035U (en) | 2022-11-18 | 2022-11-18 | Filter screen detection device and fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074306.0U CN219345035U (en) | 2022-11-18 | 2022-11-18 | Filter screen detection device and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219345035U true CN219345035U (en) | 2023-07-14 |
Family
ID=87107582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223074306.0U Active CN219345035U (en) | 2022-11-18 | 2022-11-18 | Filter screen detection device and fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219345035U (en) |
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2022
- 2022-11-18 CN CN202223074306.0U patent/CN219345035U/en active Active
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