CN103646811A - Rocker device having water proof function - Google Patents
Rocker device having water proof function Download PDFInfo
- Publication number
- CN103646811A CN103646811A CN201310712450.9A CN201310712450A CN103646811A CN 103646811 A CN103646811 A CN 103646811A CN 201310712450 A CN201310712450 A CN 201310712450A CN 103646811 A CN103646811 A CN 103646811A
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- Prior art keywords
- potentiometer
- rocking bar
- water
- proof function
- housing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 22
- 239000013536 elastomeric material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Switch Cases, Indication, And Locking (AREA)
- Casings For Electric Apparatus (AREA)
- Toys (AREA)
Abstract
The invention discloses a rocker device having a water proof function. The rocker device having the water proof function comprises a rocker body, a rocker installation portion and an electric element; the electric element which is connected with the rocker arm body is arranged inside the rocker installation portion; a sealing assembly of the electric element is arranged inside the rocker installation portion; the water proof function is achieved due to sealing of the electric element. According to the rocker device having the water proof function, the water proof effect is achieved due to sealing of the electric element which is arranged inside the rocker device and liquid such as water can be rapidly discharged when entering into a casing due to the fact that a drainage structure is arranged at the bottom of the rocker casing.
Description
Technical field
The present invention relates to a kind of children education product rocking bar, relate in particular to a kind of rocker actuator with water-proof function.
Background technology
Some children education product is provided with mobilizable rocking bar on the market at present, by movable rocking bar, realizes corresponding function, contributes to improve child's manipulative ability, and the interest that increases product.As shown in Figure 1, prior art discloses a kind of electronic toy device, it comprises a housing 100, mobilizable rocking bar 200 is set on housing 100, rocking bar 200 comprises a pitman head 201, and the rocking bar cover 202 being connected with pitman head 201, the potentiometer 300 being connected with rocking bar cover 202 in the interior setting of housing 100, and realize with potentiometer 300 mainboard 400 being electrically connected to, potentiometer 300 is fixed on potentiometer support 500 in housing 100.By operation pitman head 201, make rocking bar cover 202 drive potentiometer 300 to coordinate with mainboard 400 and produce the signal of telecommunication, electric signal transmission, to host machine part, completes corresponding function by execution unit.Because rocking bar is movable part; between itself and housing, there is larger gap to keep motion smooth and easy; water can enter from above-mentioned gap in housing; when having water to flow in housing along rocking bar cover; due to without any protective device, water just can flow into mainboard and potentiometer very soon, and result can cause the problems such as disabler that short circuit, oxidation cause; can cause trouble to use, also to after-sale service, bring immense pressure.
In sum, the rocking bar of electronic toy device of the prior art part does not possess water-proof function, and when having water when rocking bar partly enters interiors of products, corresponding electric appliance element easily soaks, and easily produces the use problems such as short circuit, affects the customer experience of product.
Summary of the invention
The object of the invention is to propose a kind of rocker actuator with water-proof function, when having water when rocking bar enters interiors of products, corresponding electric appliance element can be protected, and makes the function of product unaffected.
For reaching this object, the present invention by the following technical solutions:
A kind of rocker actuator with water-proof function, comprise rocking bar body, rocking bar installation portion, and be connected with described rocking bar body and be arranged at the electric elements in described rocking bar installation portion, the black box of described electric elements is set in described rocking bar installation portion, by the sealing to described electric elements, realizes water-proof function.
As a kind of preferred version, described rocking bar body comprises pitman head, and the rocking bar cover being connected with pitman head;
Described rocking bar installation portion comprises a housing, and the part of described rocking bar cover is placed in described housing;
Described electric elements comprise potentiometer, and the circuit main board being connected with potentiometer, and described potentiometer is connected with the part that is positioned at described housing of described rocking bar cover.
As a kind of preferred version, described housing comprises a face-piece and a drain pan, and described face-piece button is located on described drain pan, limit the installing space of described electric elements, the bottom of described drain pan arranges boss, on described boss, ring-shaped step is set, and described circuit main board is fixed on described step;
Described black box comprises potentiometer support, the main body of described potentiometer support is hood-like, it has a sealing end, and the openend being oppositely arranged with described sealing end, described sealing end is offered the first through hole, described openend covers on described step, described potentiometer and described circuit main board are encapsulated in the space being formed by described boss and described potentiometer support, junction at described step and described openend arranges sealing ring, and the link of described potentiometer is connected with described rocking bar cover through described the first through hole.By described design, the black box that is mainly comprised of the sealing ring of boss, potentiometer support and both contact-making surfaces, in electric elements are sealed in, has stopped contacting between liquid and electric elements, and electric elements can be protected.
As a kind of preferred version, described black box comprises potentiometer support, the main body of described potentiometer support is the cassette shapes of sealing, described potentiometer is connected with described circuit main board, and be sealed in described potentiometer support, on described potentiometer support, offer the first through hole, the link of described potentiometer is connected with described rocking bar cover through described the first through hole.By described design, the black box that is mainly comprised of the potentiometer support of cassette shapes, in electric elements are sealed in, has stopped contacting between liquid and electric elements, and electric elements can be protected.
As a kind of preferred version, the size of the size of described the first through hole and the link of described potentiometer matches, described potentiometer support adopts elastomeric material to make, so that the link of described potentiometer compresses mutually with described potentiometer support in described the first through hole.By described design, can not affect under the prerequisite of rocker actuator maximum actuation amplitude, the gap between potentiometer and potentiometer support is dropped to minimum, guarantee that liquid can not enter in potentiometer support to contact with potentiometer and circuit main board.
As a kind of preferred version, the main body periphery of described potentiometer support arranges annular dash flange, between described dash flange and the madial wall of described drain pan, has gap, to form water pouring space by described gap.Preferably, described the first through hole is opened in the top of described potentiometer support, described dash flange is arranged at the middle part of described potentiometer support, because dash flange is positioned at the below of the first through hole, when user occurs that machine is inverted in misoperation, dash flange can block water etc. liquid to the top of potentiometer support, flow, and then stoped the liquid such as water to enter in potentiometer support to contact with electric elements; By making to leave gap between dash flange and the madial wall of housing, can work as after the liquid such as water enter in housing, by this gap, flow downward rapidly, play guide functions, prevented that water from entering its inside by first through hole at the top of potentiometer support.
As a kind of preferred version, the end of described dash flange arranges extension to bottom angled or the bending of described housing.By extension is set, can more efficiently block water etc. liquid to the top of potentiometer support, flow, thereby guaranteed the waterproof effect of machine in unconventional situation.
As a kind of preferred version, the top of described housing arranges the second through hole, and the top of at least described housing adopts elastomeric material to make, and described rocking bar covers in described the second through hole and compresses mutually with described housing.By described design, can not affect under the prerequisite of rocker actuator action, the gap between rocking bar cover and housing is dropped to minimum, reduce liquid and enter the interior possibility contacting with potentiometer and circuit main board of housing.
As a kind of preferred version, described rocking bar cover has a pitman head connecting portion and a potentiometer connecting portion, at the peripheral of described potentiometer connecting portion and be positioned at described housing one annular drainage hood is set.By drainage hood is set, can make the liquid such as water enter after housing by water conservancy diversion downwards rapidly, reduce water in rocking bar cover and the potentiometer junction time of staying, the least significant end of drainage hood is positioned at the below of the junction of rocking bar cover and potentiometer, thereby makes water can not flow into the junction of rocking bar cover and potentiometer.
As a kind of preferred version, the bottom of described housing arranges discharge structure.By the bottom at housing, discharge structure is set, when the liquid such as water enter after housing, can arranges outward rapidly, thereby play waterproof effect.Discharge structure of the present invention can be rhone or hole etc.
Contrast prior art, beneficial effect of the present invention is: by the electric elements in rocker actuator are sealed, thereby reach waterproof effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of electronic toy device with rocking bar of prior art;
Fig. 2 is the structure cross-sectional schematic of the rocker actuator described in embodiment;
Fig. 3 is the cross-sectional schematic of the drain pan shown in Fig. 2;
Fig. 4 is the cross-sectional schematic of the potentiometer support shown in Fig. 2;
Fig. 5 is the cross-sectional schematic of the drain pan described in another embodiment.
In figure:
100, housing; 200, rocking bar; 201, pitman head; 202, rocking bar cover; 300, potentiometer; 400, mainboard; 500, potentiometer support;
1, rocking bar body; 11, pitman head; 12, rocking bar cover; 121, pitman head connecting portion; 122, potentiometer connecting portion; 123, drainage hood;
2, rocking bar installation portion; 21, face-piece; 211, the second through hole; 22, drain pan; 221, boss; 222, step; 2221, step top; 2222, step bottom; 223, tank;
3, electric elements; 31, potentiometer; 32, circuit main board; 33, potentiometer support; 331, sealing end; 3311, the first through hole; 332, openend; 3321, openend step; 3322, step sidewall; 333, dash flange; 334, extension;
4, sealing ring;
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate technical scheme of the present invention.
The rocker actuator with water-proof function of the present invention, comprises rocking bar body, rocking bar installation portion, and is connected with rocking bar body and is arranged at the electric elements in rocking bar installation portion, and the black box of electric elements is set in rocking bar installation portion.By the electric elements in rocker actuator are sealed, thereby reach waterproof effect.
As shown in Figure 2, in the present embodiment, rocking bar body 1 comprises pitman head 11, and the rocking bar cover 12 being connected with pitman head 11;
Rocking bar installation portion 2 comprises a housing, and the part of rocking bar cover 12 is placed in housing;
Above-mentioned housing comprises a face-piece 21 and a drain pan 22, and face-piece 21 buttons are located on drain pan 22, for limiting the installing space of electric elements 3.
In the present embodiment, shown in Figure 3, the bottom of drain pan 22 arranges boss 221, and ring-shaped step 222 is set on boss 221, and circuit main board 32 is fixed on step 222; Boss 221 is preferably disposed on the centre position, bottom of drain pan 22, and the top outer rim of boss 221 arranges step 222, and this step 222 has a step top 2221 and a step bottom 2222, and circuit main board 32 is mounted on step top 2221.
Shown in Figure 4, the outer potentiometer support 33 that arranges of potentiometer 31, the main body of potentiometer support 33 is hood-like, it has a sealing end 331, and the openend 332 being oppositely arranged with sealing end 331, sealing end 331 is offered the first through hole 3311, openend 332 has an annular openend step 3321, this openend step 3321 has a step sidewall 3322, by step sidewall 3322 and step bottom 2222 are connected, thereby potentiometer support 33 is covered on step 222, and then potentiometer 31 and circuit main board 32 are encapsulated in the space being formed by boss 221 and potentiometer support 33, in step 222 and the junction of openend 332, sealing ring 4 is set, the link of potentiometer 31 is connected with rocking bar cover 12 through the first through hole 3311.In the present embodiment, black box is mainly comprised of the sealing ring 4 of boss 221, potentiometer support 33 and both contact-making surfaces, in electric elements 3 are sealed in, has stopped contacting between liquid and electric elements 3, and electric elements 3 can be protected.
Certainly, those skilled in the art can know, the version of black box is variable.For example, shown in Figure 5, the difference of this embodiment and the present embodiment is only: the inside top of boss 221 arranges annular step 222, this step 222 has a step bottom 2222, step bottom 2222 is positioned at the inside top of boss 221, circuit main board 32 is fixed on step bottom 2222, and has gap with the sidewall of step 222.During installation, potentiometer 31 is connected on circuit main board 32, potentiometer support 33 covers in potentiometer 31 outsides, and its step sidewall 3322 inserts in above-mentioned gap, until step sidewall 3322 connects and stops inserting with step bottom 2222.Because circuit main board 32 is fixed on step bottom 2222, and be positioned at boss 221, so the installation of electric elements is more firm, can provides stable environment for operation, can play electric elements sealing effectiveness too, thereby play waterproof effect.
In another embodiment, the present invention adopts a main body to be the potentiometer support of the cassette shapes of sealing, potentiometer be connected with circuit main board and be sealed in potentiometer support, offering the first through hole on potentiometer support, the link of potentiometer is connected with described rocking bar cover through the first through hole.By being the potentiometer support of cassette shapes, directly seal electric elements, stop contacting between liquid and electric elements, electric elements can be protected.Easily associate, rocking bar installation portion 2 itself also can adopt double-layer shell structure form, and internal layer shell is used for sealing electric elements, and then packs integral body into outer casing, and this kind of mode can arrive waterproof effect equally.
Bottom at rocking bar installation portion 2 is provided with discharge structure, can work as the liquid such as water and enter after housing, rapidly outer row.In the present embodiment, discharge structure is the tank 223 that is arranged at drain pan 22 bottoms, and the quantity of tank 223 is a plurality of.In other embodiment, discharge structure can be for being arranged at the osculum of drain pan 22 bottoms, or osculum and tank respectively arrange a plurality of.
In the present embodiment, the size of the link of the size of the first through hole 3311 and potentiometer 31 matches, and potentiometer support 33 adopts elastomeric material to make, so that the link of potentiometer 31 compresses mutually with potentiometer support 33 in the first through hole 3311.Because potentiometer support 33 adopts elastomeric material, there is certain retractility, when the link of potentiometer 31 is through after the first through hole 3311, the hole wall of this first through hole 3311 shrinks, and the link of potentiometer 31 is close to mutually, make between potentiometer 31 and potentiometer support 33 gap minimum, guarantee that liquid can not enter in potentiometer support to contact with potentiometer and circuit main board; When rocking bar moves, the hole wall of the first through hole 3311 has elasticity, can carry out smoothly by safety action.
The top of face-piece 21 arranges the second through hole 211, and rocking bar cover 12 is connected with the link of potentiometer 31 through the second through hole 211.As shown in Figure 1, the rocking bar cover 12 of the present embodiment is passed by the second through hole 211 center, and has gap with the hole wall of the second through hole 211, so can make rocking bar cover 12 in the interior motion of the second through hole 211 freely.Certainly, predictably, also can adopt elastomeric material to make face-piece 21, rocking bar cover 12 compresses mutually with face-piece 21 in the second through hole 211.Because face-piece 21 has elasticity, even if rocking bar cover 12 compresses mutually with the hole wall of the second through hole 211, also can not affect the action of rocking bar cover 12, also the gap between rocking bar cover 12 and face-piece 21 can be dropped to minimumly, reduce liquid and enter the possibility contacting with potentiometer and circuit main board in housing.
Rocking bar cover 12 has a pitman head connecting portion 121 and a potentiometer connecting portion 122, and pitman head connecting portion 121 connects pitman head 11, and potentiometer connecting portion 122 is connected with the link of potentiometer 31 through the second through hole 211.At the peripheral of potentiometer connecting portion 122 and be positioned at face-piece 21 an annular drainage hood 123 is set, the top of drainage hood 123 is positioned at the oral area of the second through hole 211, the bottom of drainage hood 123 is positioned at housing, between the top of drainage hood 123 and its bottom, there is semi-sphere, by drainage hood 123 is set, can make the liquid such as water enter after housing by water conservancy diversion downwards rapidly, reduce water in rocking bar cover 12 and the 31 junction time of staying of potentiometer; Preferred; the bottom of drainage hood 123 is positioned at the below of the first through hole 3311; be the below that the least significant end of drainage hood 123 is positioned at rocking bar cover 12 and the junction of potentiometer 31, make water can not flow into the junction of rocking bar cover 12 and potentiometer 31, thus the safety of protection potential device and circuit main board.
As shown in Figure 4, the main body periphery of potentiometer support 33 arranges annular dash flange 333, between dash flange 333 and the madial wall of housing, has gap.By step sidewall 3322, the direction to the inwall near housing extends in parallel dash flange 333, because the first through hole 3311 is opened in the top of potentiometer support 33, dash flange 333 is positioned at the below of the first through hole 3311, when user occurs that machine is inverted in misoperation, dash flange 333 can block water etc. liquid to the top of potentiometer support 33, flow, and then stoped the liquid such as water to enter in potentiometer support 33 to contact with electric elements 3; And make to leave between dash flange 333 and the inwall of drain pan 22 gap, to form water pouring space by this gap, can work as after the liquid such as water enter in housing, by this gap, flow downward rapidly, play guide functions, prevented that water from entering its inside by first through hole 3311 at the top of potentiometer support 33.
The end of dash flange 333 arranges extension 334 to the bottom angled of housing.By extension 334 is set, can more efficiently block water etc. liquid to the top of potentiometer support 33, flow, thereby guaranteed the waterproof effect of machine in unconventional situation.In other embodiment, extension 334 also can the bottom bend to housing be arranged by the end of dash flange 333.
" first " of the present invention, " second " etc., only, for being distinguished on describing, do not have special implication.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (10)
1. a rocker actuator with water-proof function, it is characterized in that, comprise rocking bar body, rocking bar installation portion, and be connected with described rocking bar body and be arranged at the electric elements in described rocking bar installation portion, the black box of described electric elements is set in described rocking bar installation portion, by the sealing to described electric elements, realizes water-proof function.
2. the rocker actuator with water-proof function according to claim 1, is characterized in that,
Described rocking bar body comprises pitman head, and the rocking bar cover being connected with pitman head;
Described rocking bar installation portion comprises a housing, and the part of described rocking bar cover is placed in described housing;
Described electric elements comprise potentiometer, and the circuit main board being connected with potentiometer, and described potentiometer is connected with the part that is positioned at described housing of described rocking bar cover.
3. the rocker actuator with water-proof function according to claim 2, it is characterized in that, described housing comprises a face-piece and a drain pan, described face-piece button is located on described drain pan, limit the installing space of described electric elements, the bottom of described drain pan arranges boss, on described boss, ring-shaped step is set, and described circuit main board is fixed on described step;
Described black box comprises potentiometer support, the main body of described potentiometer support is hood-like, it has a sealing end, and the openend being oppositely arranged with described sealing end, described sealing end is offered the first through hole, described openend covers on described step, described potentiometer and described circuit main board are encapsulated in the space being formed by described boss and described potentiometer support, junction at described step and described openend arranges sealing ring, and the link of described potentiometer is connected with described rocking bar cover through described the first through hole.
4. the rocker actuator with water-proof function according to claim 2, it is characterized in that, described black box comprises potentiometer support, the main body of described potentiometer support is the cassette shapes of sealing, described potentiometer is connected with described circuit main board, and be sealed in described potentiometer support, on described potentiometer support, offer the first through hole, the link of described potentiometer is connected with described rocking bar cover through described the first through hole.
5. according to the rocker actuator with water-proof function described in claim 3 or 4, it is characterized in that, the size of the size of described the first through hole and the link of described potentiometer matches, described potentiometer support adopts elastomeric material to make, so that the link of described potentiometer compresses mutually with described potentiometer support in described the first through hole.
6. according to the rocker actuator with water-proof function described in claim 3 to 5 any one, it is characterized in that, the main body periphery of described potentiometer support arranges annular dash flange, between described dash flange and the madial wall of described drain pan, has gap, to form water pouring space by described gap.
7. the rocker actuator with water-proof function according to claim 6, is characterized in that, the end of described dash flange arranges extension to bottom angled or the bending of described housing.
8. according to the rocker actuator with water-proof function described in claim 2 to 7 any one, it is characterized in that, the top of described housing arranges the second through hole, and the top of at least described housing adopts elastomeric material to make, and described rocking bar covers in described the second through hole and compresses mutually with described housing.
9. according to the rocker actuator with water-proof function described in claim 2 to 8 any one, it is characterized in that, described rocking bar cover has a pitman head connecting portion and a potentiometer connecting portion, at the peripheral of described potentiometer connecting portion and be positioned at described housing one annular drainage hood is set.
10. according to the rocker actuator with water-proof function described in claim 2 to 9 any one, it is characterized in that, the bottom of described housing arranges discharge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712450.9A CN103646811B (en) | 2013-12-19 | 2013-12-19 | There is the rocker actuator of water-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712450.9A CN103646811B (en) | 2013-12-19 | 2013-12-19 | There is the rocker actuator of water-proof function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103646811A true CN103646811A (en) | 2014-03-19 |
| CN103646811B CN103646811B (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310712450.9A Expired - Fee Related CN103646811B (en) | 2013-12-19 | 2013-12-19 | There is the rocker actuator of water-proof function |
Country Status (1)
| Country | Link |
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| CN (1) | CN103646811B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072360A (en) * | 2016-09-22 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Rocker actuator and the bracelet for being provided with rocker actuator |
| CN109983416A (en) * | 2017-09-25 | 2019-07-05 | 深圳市大疆创新科技有限公司 | Remote controler and UAV system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287400A (en) * | 1979-11-01 | 1981-09-01 | Timex Corporation | Water-resistant rocker switch |
| CN2392309Y (en) * | 1999-10-19 | 2000-08-16 | 汤相法 | Cranking bar type optoelectronic switch for game machine |
| CN2777730Y (en) * | 2005-03-14 | 2006-05-03 | 东莞日进电子有限公司 | Water-proof speed change control switch |
| CN201549413U (en) * | 2009-11-20 | 2010-08-11 | 湘潭电气设备制造有限责任公司 | Master switch for outputting analog signal |
-
2013
- 2013-12-19 CN CN201310712450.9A patent/CN103646811B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4287400A (en) * | 1979-11-01 | 1981-09-01 | Timex Corporation | Water-resistant rocker switch |
| CN2392309Y (en) * | 1999-10-19 | 2000-08-16 | 汤相法 | Cranking bar type optoelectronic switch for game machine |
| CN2777730Y (en) * | 2005-03-14 | 2006-05-03 | 东莞日进电子有限公司 | Water-proof speed change control switch |
| CN201549413U (en) * | 2009-11-20 | 2010-08-11 | 湘潭电气设备制造有限责任公司 | Master switch for outputting analog signal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107072360A (en) * | 2016-09-22 | 2017-08-18 | 深圳市大疆创新科技有限公司 | Rocker actuator and the bracelet for being provided with rocker actuator |
| WO2018053745A1 (en) * | 2016-09-22 | 2018-03-29 | 深圳市大疆创新科技有限公司 | Rocker device and bracelet having the same |
| CN109983416A (en) * | 2017-09-25 | 2019-07-05 | 深圳市大疆创新科技有限公司 | Remote controler and UAV system |
| CN109983416B (en) * | 2017-09-25 | 2022-01-14 | 深圳市大疆创新科技有限公司 | Remote controller and unmanned aerial vehicle system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103646811B (en) | 2016-06-15 |
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Effective date of registration: 20180104 Address after: 523860 Guangdong Province, Dongguan city Changan Town Road No. 126 building two usha BBK Patentee after: Guangdong Xiaotiancai Technology Co.,Ltd. Address before: 523860 Guangdong Province, Dongguan city Changan town Liwu Industrial Zone Patentee before: BBK EDUCATIONAL ELECTRONICS Corp.,Ltd. |
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