CN2575762Y - Scanner shell with buffer purpose - Google Patents

Scanner shell with buffer purpose Download PDF

Info

Publication number
CN2575762Y
CN2575762Y CN02259743U CN02259743U CN2575762Y CN 2575762 Y CN2575762 Y CN 2575762Y CN 02259743 U CN02259743 U CN 02259743U CN 02259743 U CN02259743 U CN 02259743U CN 2575762 Y CN2575762 Y CN 2575762Y
Authority
CN
China
Prior art keywords
mouse
slide
circuit board
fan
upper shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN02259743U
Other languages
Chinese (zh)
Inventor
胡赓白
沈耀升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Transpacific IP Ltd
Original Assignee
Transpacific IP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Transpacific IP Ltd filed Critical Transpacific IP Ltd
Priority to CN02259743U priority Critical patent/CN2575762Y/en
Application granted granted Critical
Publication of CN2575762Y publication Critical patent/CN2575762Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Position Input By Displaying (AREA)

Abstract

The utility model relates to a mouse with a heat radiating device. The utility model comprises an upper casing, the surface of which is provided with at least one press keys, a pedestal which is connected with the upper casing, a circuit board which is arranged between the upper casing and the pedestal and a displacement sensing device which is arranged between the upper casing and the pedestal, wherein, an electronic element and a circuit which can be used for making the mouse normally work are arranged on the circuit board; the displacement sensing device can accurately count the movement distance and the movement directions of the mouse adjacent to the position of the pedestal. The utility model is characterized in that at least one opened hole is arranged on the upper casing; the opened holes are arranged on the operating position of the mouse, which is held by users; a fan is arranged between the upper casing and the pedestal adjacent to the position of the circuit board and is connected with the circuit board; the needed power source is supplied by the circuit board; the installation direction of the fan can make air current generated by the fan are blown out of the surface of the mouse towards the direction of the opened holes. When the utility model is operated, the air flow can blow palms of the users to avoid the phenomenon that the palms sweat.

Description

The slide-mouse of tool heat abstractor
Technical field
The utility model relates to a kind of slide-mouse, particularly a kind of slide-mouse of avoiding taking place the tool heat abstractor of palm streaming hand sweat when operating slide-mouse.
Background technology
See also shown in Figure 1, general traditional slide-mouse (Mouse) 1, formed by a upper shell 10 and a base 12, be that a spheroid 14 is installed in it, two grating groups 16, elements such as two OPTICAL SENSORS 18 and a control circuit 19, one ora terminalis place of this upper shell 10 is provided with at least one button 11, when this tradition slide-mouse 1 is used, these grating groups 16 will be rolled with this spheroid 14 and be rotated, at this moment, these OPTICAL SENSORS 18 can sense these grating group 16 rotation directions and produce a sensing signal, and pass to this control circuit 19, handle via this control circuit 19 again, and calculate the displacement and the direction of this tradition slide-mouse 1.
Another kind of optical mice 2 structures, see also Figure 1 and Figure 2, this slide-mouse 2 is made up of a upper shell 20 and a base 22, wherein an ora terminalis place of this upper shell 20 is provided with at least one button 21, be embedded with optical devices 24 on the nearly middle position in the bottom of this base 22, with the spheroid 14 in the traditional slide-mouse of these optical devices 24 replacements, in addition, this base 22 is provided with a circuit board 26, this circuit board 26 is provided with the required electronic component 28 of these optical mice 2 normal operations, circuit, and these optical devices 24 are made of a light-emitting component 242 and an image capture element 244, the light source of this light-emitting component 242 is to be projected on the surface of contact of bottom of this base 22, the surface of contact image that tool throwed just can be this image capture element 244 and captures, so, this optical mice 2 is on surface of contact when mobile, these optical devices 24 can constantly receive 244 picked image of this image capture element, and constantly compare difference between these image capture element 244 instant picked image and previous picked image, and then calculate the displacement and the direction of this slide-mouse exactly according to these differences.
Because traditional slide-mouse 1 is can more convenient in the use practicality, usually appearance and modeling that should tradition slide-mouse 1 will be according to ergonomic designs, make on these tradition slide-mouse 1 interior some positions, any element is not installed, in this external general optical mice 2, its optical devices 24 and circuit board 26 only account for the volume of minimum parts in this optical mice 2, and it is littler than the overall volume of traditional slide-mouse 1 to make that this optical mice 2 can be made into.But the dealer considers that use habit and traditional slide-mouse 1 is originally according to the moulding of ergonomic designs, or for reducing production costs, usually the appearance and modeling of this optical mice 2 is to duplicate with traditional slide-mouse 1, only be modified to these optical devices 24 are installed in the position that this spheroid 14 is installed, at this moment, to vacate the space that traditional spheroid 14 is installed at least in this optical mice 2, and any element is not installed all usually in this space generally, if can be at the position that traditional slide-mouse 1 is not installed any element, or do not install in the space of any element in this optical mice 2, the element that at least one has specific function is installed, make this tradition slide-mouse 1 or optical mice 2 can increase at least a new function or solve to use puzzlement on the optical mice 2, in addition, for example: if can improve the user when operating this optical mice 2, user's the palm of the hand almost be stuffy room without ventilation abut in the state on these optical mice 2 surfaces, make the palm of the hand can not flow out hand perspiration again, believe it is that consumer and dealer find pleasure in and see.
Because traditional slide-mouse still has and lefts in that the space is kind to add utilization, this creator is through the permanent research and experiment of making great efforts, and development and Design goes out the slide-mouse of a kind of tool heat abstractor of the present utility model finally.
Summary of the invention
The utility model is the slide-mouse that a kind of tool heat abstractor will be provided, and avoids taking place the technical matters of palm streaming hand sweat when making its operation slide-mouse with solution.
It is such solving the problems of the technologies described above the technical scheme that is adopted:
A kind of slide-mouse of tool heat abstractor includes:
One upper shell, its surface location place is provided with more than one button at least;
One base is to be connected together with this upper shell;
One circuit board is provided in a side of between this upper shell and base, and this circuit board is provided with electronic component, the circuit that makes this slide-mouse normal operation required;
One displacement sensing device is provided in a side of between this upper shell and base, and near on the position of this base, it can calculate the displacement and the direction of this slide-mouse exactly; It is characterized in that:
At least be provided with a perforate on this upper shell, these perforates are provided in a side of this slide-mouse by the position of user's holding operation;
One fan is provided in a side of between this upper shell and base, is close to the position of this circuit board, and is connected with this circuit board, and required power supply is provided by circuit board, and the installation position of fan makes the air-flow of its generation blow to outside the slide-mouse surface to these perforate directions;
This fan is provided in a side of on this circuit board;
This fan is provided in a side of this base near on the position of this circuit board;
This fan is provided in a side of this upper shell inner surface;
This fan is provided with a framework, a blade part that is provided with a driver in this framework and is connected with this driver, and this driver is provided with a plurality of power leads and this circuit board joins, and this driver can receive power supply and move, and then drives this blade part rotation;
This framework is provided with at least one junction surface, and is provided with another junction surface at this circuit board, and another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this circuit board;
This framework is provided with at least one junction surface, and is provided with another junction surface on this base, and another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this base;
This framework is provided with at least one junction surface, and is provided with another junction surface at this upper shell inner surface, and another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this upper shell inner surface;
Be provided with the diversion member that an air-flow with the fan generation directs into these perforates between this fan and these perforates;
This diversion member one end and this fan connect airtight together, and end is to cover these perforates fully in addition, and are provided with a plurality of in it and the corresponding distributary division of these perforates.
The utility model is made up of a upper shell and a base, wherein and a circuit board is installed, one displacement sensing device and a fan, and this appropriate position, upper shell surface is provided with more than one button and more than one perforate at least, after this slide-mouse is connected with an electronic installation and is activated, can calculate the displacement and the direction of this slide-mouse by this displacement sensing device exactly, make the index that shows on the display of this computer, move in the path of moving according to this slide-mouse exactly, and the air-flow that is produced by the action of this fan, flow to outside this upper shell surface, when this slide-mouse is operated by the user, this air-flow can brush user's palm, avoiding taking place the phenomenon of palm streaming hand sweat, thereby solved the technical matters of avoiding taking place the palm streaming hand sweat when making its operation slide-mouse.
The utility model is simple in structure, be one fan to be installed in this slide-mouse inside, and a perforate is established in this appropriate position, slide-mouse surface, after this slide-mouse is connected with an electronic installation and is activated, this fan can produce air-flow and blow on this slide-mouse surface, and when this slide-mouse was operated, this air-flow can blow on the palm of this slide-mouse of operation, avoiding the phenomenon of palm generation streaming hand sweat, and the tool practicality.
Description of drawings
Fig. 1 is the three-dimensional partial cutaway schematic of traditional slide-mouse.
Fig. 2 is the partial cutaway schematic of traditional optical slide-mouse.
Fig. 3 is a three-dimensional partial cutaway schematic of the present utility model.
Fig. 4 is the synoptic diagram that fan of the present utility model is installed in circuit board.
Fig. 5 is the synoptic diagram that fan of the present utility model is installed in base.
Fig. 6 is the synoptic diagram that fan of the present utility model is installed in upper shell.
Fig. 7 is the synoptic diagram of fan of the present utility model, diversion member and perforate installation site.
Fig. 8 is the three-dimensional partial cutaway schematic of another embodiment of the utility model.
Fig. 9 is the partial cutaway schematic of the another embodiment of the utility model.
Embodiment
The utility model is a kind of slide-mouse of tool heat abstractor, its basic structure is identical with the aforementioned conventional slide-mouse, see also Fig. 3 and shown in Figure 4, formed by a upper shell 30 and a base 39, wherein and a circuit board 31 is installed, one displacement sensing device 32 and a fan 33, and this circuit board 31 is provided with and makes the required electronic component 311 of this slide-mouse 3 (comprising this displacement sensing device 32 and fan 33) normal operation, circuit, and these upper shell 30 surperficial appropriate positions are provided with more than one button 34 at least, and these slide-mouse 3 surfaces are provided with more than one perforate 35, after this slide-mouse 3 is connected with an electronic installation (as computer) and is activated, can calculate the displacement and the direction of this slide-mouse 3 by this displacement sensing device 32 exactly, make the index that shows on the display of this electronic installation, move in the path of moving according to this slide-mouse 3 exactly, and by these fan 33 generation air-flows, blow to outside these slide-mouse 3 surfaces by these perforates 35, so, when the user is placed on hand on this slide-mouse 3, and when operating this slide-mouse 3, this fan 33 blows to this outer air-flow in slide-mouse 3 surfaces by these perforates 35, the palm of the hand that can blow to the user is on the position that this slide-mouse 3 abuts in, to avoid the phenomenon of palm generation streaming hand sweat.In the utility model, an end of these slide-mouse 3 contiguous these buttons 34 can be provided with a runner 36 with page turning or line feed function, but because the technology of the page turning of this runner 36 or line feed function also belongs to known technology, so do not repeat them here.
In a preferred embodiment of the present utility model, see also shown in Figure 4 again, this slide-mouse 3 is to can be an optical mice, and this displacement sensing device 32 is to can be optical devices, these optical devices are embedded at this circuit board 31 in the face of on the position of these base 39 central authorities, and be connected with this circuit board 31, it is made of a light-emitting component 322 and an image capture element 324, the light source of this light-emitting component 322 is to be projected on the surface of contact, making the image that is throwed on this surface of contact just can be this image capture element 324 captures, this slide-mouse 3 is on this surface of contact when mobile, this displacement sensing device 32 can constantly receive 324 picked image of this image capture element, and constantly compare difference between these image capture element 324 instant picked image and previous picked image, and then calculate the displacement and the direction of this slide-mouse 3 exactly according to these differences.
In another preferred embodiment of the present utility model, see also shown in Figure 8 again, this slide-mouse 3 is to can be a spin slide-mouse, this base 39 is provided with an opening 390 on nearly middle position, this circuit board 31 is provided in a side of this base 39 near on the position of this opening 390, and this displacement sensing device 32 is to comprise a spheroid 321, two grating groups 323, two OPTICAL SENSORS 325, wherein this spheroid 321 is to be located at versatilely on this opening 390, its part can be exposed outside this base 39, this two OPTICAL SENSORS 325 is provided in a side of on this circuit board 31, and be connected with this circuit board 31, and this two gratings group 323 is provided in a side of on this base 39, and the one end is to face mutually with this two OPTICAL SENSORS 325, end then touches together mutually with this spheroid 321 in addition, when this spin slide-mouse is used, these grating groups 323 will be rolled with this spheroid 321 and be rotated, at this moment, these OPTICAL SENSORS 325 can sense these grating group 323 rotation directions and produce a sensing signal, and pass to this circuit board 31, handle via the electronic component on this circuit board 31 again, and calculate the displacement and the direction of this tradition slide-mouse.
In another preferred embodiment of the present utility model, see also shown in Figure 9 again, this slide-mouse 3 is to can be a trace ball slide-mouse, this upper shell 30 is provided with a circular hole 302, and this displacement sensing device 32 is to comprise a trace ball 327 and optical devices 329, wherein this trace ball 327 just can be installed on this circular hole 302, and its part is to expose outside this circular hole 302, and can rotate arbitrarily, this trace ball 327 is one to be made by transparent material, evenly mix up small fragment or particle that glitter powder or the reflective characteristic of other tool are arranged in it, these optical devices 329 are provided in a side of the installed position that is adjacent to this trace ball 327 in this slide-mouse 3, and join with this circuit board 31, light-emitting component 3292 in these optical devices 329 just can be with light source projects to this trace ball 327, and penetrate in this trace ball 327, make small fragment or particle in this trace ball 327, the part source reflection is gone back to the surface of this trace ball 327, make an image capture element 3294 in these optical devices 329 sustainable and clearly capture to the image that is reflected, and then calculate the displacement and the direction of this trace ball 327 accurately.
In these embodiment, see also Fig. 3,4,5 and shown in Figure 6, this fan 33 is provided in a side of on this circuit board 31, or is located on these base 39 another appropriate locations, or be located at this upper shell 30 inner surfaces, and the required power supply of its action is provided by this circuit board 31.And this fan 33 is to be provided with a framework 330, a blade part 332 that is provided with a driver 331 in this framework 330 and is connected with this driver 331, at least one junction surface 333 is set on this framework 330, and at this circuit board 31, base 39 or upper shell 30 inner surfaces, be provided with another junction surface 335, to be connected by these 333 another junction surfaces 335 corresponding, junction surface with it, or utilize a Connection Element 4 that these 333 another junction surfaces 335 corresponding with it, junction surface are connected, make this framework 330 be fixed on this circuit board 31, on base 39 or upper shell 30 inner surfaces, and this driver 331 is provided with a plurality of power leads 336 and this circuit board 31 joins, making this driver 331 can receive power supply moves, and then drive this blade part 332 and rotate, with these perforate 35 directions of generation air flow direction, and blow to outside the surface of this slide-mouse 3.
After avoiding this slide-mouse 3 to start, no matter whether this slide-mouse 3 is operated use, fan 33 in it turns round immediately, so, to cause power wastage, in the utility model, for avoiding this problem to produce, see also Fig. 3 and shown in Figure 4 again, on these slide-mouse 3 surfaces, be provided with a power switch 38, this power switch 38 is to join with this fan 33 with this circuit board 31 respectively, to control the operating state of this fan 33 by this power switch 38, make this power switch 38 only when being activated, can begin the action running, and it can stop action when being closed, to reduce the electricity usage amount.This power switch 38 is to can be an actuating type power switch, on grip position when it is provided in a side of this slide-mouse 3 and is operated, when this slide-mouse 3 is operated, this actuating type power switch is just touched and is activated by the user, make this fan 33 entrys into service, otherwise, when the user does not touch this actuating type power switch, this actuating type power switch is to be closed condition, and makes this fan 33 shut down.
In the utility model, this base 39 is at least one side of adjacent this upper shell 30, be provided with at least one hollow-out parts 37, during these fan 33 actions, extraneous or the inner fluid of this slide-mouse 3, can be flow to or flowed out by this hollow-out parts 37, when avoiding these perforates 35 to be covered fully, extraneous or inner fluid can't flow to or flow out this slide-mouse 3.In addition, for making this fan 33 can be with preferable flow direction, flow to these perforate 35 positions, in this embodiment, see also shown in Figure 7ly, 35 of this fan 33 and these perforates are provided with a diversion member 5, during these fan 33 actions, the air-flow that this fan 33 produces can flow in these perforates 35 via this diversion member 5, or is flow on this fan 33 via this diversion member 5 by these perforates 35, to reach preferable radiating effect.Again, these diversion member 5 one ends are to connect airtight together with this fan 33, and end is to cover these perforates 35 fully in addition, and are provided with a plurality of in it and these perforate 35 corresponding distributary divisions 52, can direct into these perforates 35 by these distributary divisions 52 to make this air-flow.
Owing in this slide-mouse 3 circuit board 31 and displacement sensing device 32 are installed, can't produce too big thermal source, the thermal source of this slide-mouse 3, mainly hand is placed on this slide-mouse 3 from the user, produce when operating this slide-mouse 3, so fluid optimal flow direction that these fan 33 actions produce, be to flow out to these perforates 35 by this fan 33, the position that abuts in this slide-mouse 3 with the palm that makes this user, the air-flow that can utilize this fan 33 to be produced, blow on user's the palm, to avoid taking place the phenomenon of streaming hand sweat.
The above, only be a specific embodiment of the utility model the best, but structural attitude of the present utility model is not limited thereto, anyly is familiar with this skill person in the utility model field, can think easily and variation or modification, all be encompassed in the claim of this case.
In sum, the true tool novelty of the utility model, practicality have met the utility application important document, so propose utility application in accordance with the law.

Claims (10)

1, a kind of slide-mouse of tool heat abstractor includes:
One upper shell, its surface location place is provided with more than one button at least;
One base is to be connected together with this upper shell;
One circuit board is provided in a side of between this upper shell and base, and this circuit board is provided with electronic component, the circuit that makes this slide-mouse normal operation required;
One displacement sensing device is provided in a side of between this upper shell and base, and near on the position of this base, it can calculate the displacement and the direction of this slide-mouse exactly; It is characterized in that:
At least be provided with a perforate on this upper shell, these perforates are provided in a side of this slide-mouse by the position of user's holding operation;
One fan is provided in a side of between this upper shell and base, is close to the position of this circuit board, and is connected with this circuit board, and required power supply is provided by circuit board, and the installation position of fan makes the air-flow of its generation blow to outside the slide-mouse surface to these perforate directions.
2, the slide-mouse of tool heat abstractor according to claim 1 is characterized in that: this fan is provided in a side of on this circuit board.
3, the slide-mouse of tool heat abstractor according to claim 1 is characterized in that: this fan is provided in a side of this base near on the position of this circuit board.
4, the slide-mouse of tool heat abstractor according to claim 1 is characterized in that: this fan is provided in a side of this upper shell inner surface.
5, the slide-mouse of tool heat abstractor according to claim 1 is characterized in that: this fan is provided with a framework, a blade part that is provided with a driver in this framework and is connected with this driver, and this driver is provided with a plurality of power leads and this circuit board joins.
6, the slide-mouse of tool heat abstractor according to claim 5, it is characterized in that: this framework is provided with at least one junction surface, and be provided with another junction surface at this circuit board, and another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this circuit board.
7, the slide-mouse of tool heat abstractor according to claim 5, it is characterized in that: this framework is provided with at least one junction surface, and on this base, be provided with another junction surface, and another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this base.
8, the slide-mouse of tool heat abstractor according to claim 5, it is characterized in that: this framework is provided with at least one junction surface, and be provided with another junction surface at this upper shell inner surface, another junction surface corresponding with it by these junction surfaces is connected, and this framework is fixed on this upper shell inner surface.
9, the slide-mouse of tool heat abstractor according to claim 1 is characterized in that: be provided with the diversion member that an air-flow with the fan generation directs into these perforates between this fan and these perforates.
10, the slide-mouse of tool heat abstractor according to claim 9 is characterized in that: this diversion member one end and this fan connect airtight together, and end is to cover these perforates fully in addition, and are provided with a plurality of in it and the corresponding distributary division of these perforates.
CN02259743U 2002-09-27 2002-09-27 Scanner shell with buffer purpose Expired - Fee Related CN2575762Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN02259743U CN2575762Y (en) 2002-09-27 2002-09-27 Scanner shell with buffer purpose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN02259743U CN2575762Y (en) 2002-09-27 2002-09-27 Scanner shell with buffer purpose

Publications (1)

Publication Number Publication Date
CN2575762Y true CN2575762Y (en) 2003-09-24

Family

ID=33727001

Family Applications (1)

Application Number Title Priority Date Filing Date
CN02259743U Expired - Fee Related CN2575762Y (en) 2002-09-27 2002-09-27 Scanner shell with buffer purpose

Country Status (1)

Country Link
CN (1) CN2575762Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102314234A (en) * 2010-07-07 2012-01-11 英业达股份有限公司 Fan mouse
CN104007851A (en) * 2013-10-31 2014-08-27 昆山市张浦镇合通网络科技服务部 Multifunctional mouse with cooling device
CN104582405A (en) * 2013-10-09 2015-04-29 英业达科技有限公司 Electronic device
CN104936411A (en) * 2014-03-17 2015-09-23 名硕电脑(苏州)有限公司 Fan cooling system
CN105955518A (en) * 2016-06-27 2016-09-21 仲杏英 Environmentally friendly energy-saving heat-dissipating mouse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102314234A (en) * 2010-07-07 2012-01-11 英业达股份有限公司 Fan mouse
CN102314234B (en) * 2010-07-07 2013-09-18 英业达股份有限公司 Fan mouse
CN104582405A (en) * 2013-10-09 2015-04-29 英业达科技有限公司 Electronic device
CN104007851A (en) * 2013-10-31 2014-08-27 昆山市张浦镇合通网络科技服务部 Multifunctional mouse with cooling device
CN104936411A (en) * 2014-03-17 2015-09-23 名硕电脑(苏州)有限公司 Fan cooling system
CN105955518A (en) * 2016-06-27 2016-09-21 仲杏英 Environmentally friendly energy-saving heat-dissipating mouse
CN105955518B (en) * 2016-06-27 2019-01-11 王幸 Environmental protection and energy saving radiating mouse

Similar Documents

Publication Publication Date Title
CN103633981B (en) Touch rotary switch
CN1682241A (en) User inputs on a touch screen
TW201407433A (en) Touch type knob switch
CN102609133A (en) Touchpad, touch input method and touch input system integrating track input and key input
TWM361061U (en) Touch type mouse wake-up device
CN2575762Y (en) Scanner shell with buffer purpose
JP2005510918A5 (en)
US20090295761A1 (en) Light controlled screen
TWM448046U (en) Touch type linear adjustable switch
WO2019137076A1 (en) Smart terminal
CN202995677U (en) Optical touch control system
CN101556504A (en) Flexible keyboard with mouse
TWM446929U (en) Light emitting keyboard
CN200959116Y (en) Key swing structure of mouse
CN2771928Y (en) Mouse
CN201741113U (en) Heat dissipation mouse
CN2852241Y (en) External heat radiator of notebook computer
CN202957801U (en) Touching-type linearly adjusting switch
CN206331383U (en) A kind of computer keyboard with blowing function
CN201129778Y (en) Fume exhauster inducted switch structure
CN2604730Y (en) Luminous key board
CN208985106U (en) A kind of novel keyboard based on AI intelligence
TWI818886B (en) Knob device and gesture control device
CN201465059U (en) Palm belt type wireless mouse
CN206546650U (en) Learning device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee