CN208738444U - A kind of wireless charging emitter for automobile - Google Patents
A kind of wireless charging emitter for automobile Download PDFInfo
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- CN208738444U CN208738444U CN201820956619.3U CN201820956619U CN208738444U CN 208738444 U CN208738444 U CN 208738444U CN 201820956619 U CN201820956619 U CN 201820956619U CN 208738444 U CN208738444 U CN 208738444U
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- module
- hot plug
- wireless charging
- automobile
- control unit
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Abstract
The utility model relates to wireless charging technical fields, in particular disclose a kind of wireless charging emitter for automobile, including control unit module, coil module and wire transmitting module, control unit module is independently arranged with coil module, the both ends of wire transmitting module are connect with control unit module, coil module hot plug respectively, the both ends of wire transmitting module are respectively equipped with hot plug male connector or/and hot plug female, and control unit module, coil module are respectively equipped with the hot plug female or/and hot plug male connector being electrically connected with wire transmitting module；It is divided into control unit module independent of each other and coil module via by wireless charging emitter, after control unit module or coil module damage, corresponding damage module is only needed to change, no replacement is required entire wireless charging emitter, the maintenance cost of reduction wireless charging emitter；Ensure control unit module and coil module with inserting with, it is ensured that the convenience that wireless charging emitter uses using hot plug connection.
Description
Technical field
The utility model relates to wireless charging technical fields, in particular disclose a kind of wireless charging transmitting dress for automobile
It sets.
Background technique
With popularizing for intelligent movable equipment, after the dead battery capability of intelligent movable equipment, need to fill it
Electricity continuation of the journey, is mostly charged using battery of the charging cable to intelligent movable equipment in the prior art, and the use of charging cable needs
Charging cable is found in advance, is then again connect charging cable with intelligent movable equipment and power supply source, use is more inconvenient；The prior art
In also occur emitting equipment using wireless charging and charge to the battery of intelligent movable equipment, but it is wireless in the prior art
The tectonic sieving of charging transmitting equipment is unreasonable, after wireless charging emits equipment damage, needs to buy entire wireless charging again
Electricity transmitting equipment causes the use cost of wireless charging transmitting equipment to greatly promote.
Utility model content
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide one kind to be used for vapour
The wireless charging emitter of vehicle, after control unit module or coil module damage, it is only necessary to replace corresponding damage module, nothing
Entire wireless charging emitter is needed to change, the maintenance cost of wireless charging emitter is reduced；It is connected using hot plug
Ensure control unit module and coil module with inserting with, it is ensured that the convenience that wireless charging emitter uses.
To achieve the above object, a kind of wireless charging emitter for automobile of the utility model, including control are single
Element module, coil module and wire transmitting module, control unit module are independently arranged with coil module, and control unit module is for being connected
The connector interface of extraneous automobile, the both ends of wire transmitting module are connect with control unit module, coil module hot plug respectively, conducting wire
The both ends of module are respectively equipped with hot plug male connector or/and hot plug female, and control unit module, coil module are respectively equipped with and lead
The hot plug female or/and hot plug male connector that wire module is electrically connected.
Preferably, the hot plug male connector includes first insulator, the male terminal for being set to first insulator, male connector end
Son is equipped with inserting column；Hot plug female includes second insulator, the female terminal for being set to second insulator, and female terminal is equipped with
Spliced eye and elastic piece in spliced eye is protruded into, spliced eye is for being installed with inserting column, and elastic piece is for contradicting in spliced eye
Inserting column.
Preferably, the cross section of the spliced eye, the cross section of inserting column are circle, the quantity of elastic piece be it is multiple,
Multiple elastic pieces surround the central axis circular array of spliced eye.
Preferably, the wire transmitting module includes conductor and the insulation sleeve that is coated on the outside of conductor, male terminal or female end
Son is equipped with the punctured part for puncturing insulation sleeve, and punctured part has two pricking pieces being spaced each other, and wire transmitting module is clamped in two
Between a pricking piece, two pricking pieces puncture the two sides of insulation sleeve respectively with lead-through conductors.
Preferably, the coil module includes silica gel sheath, the substrate and spiral winding that are installed in silica gel sheath, spiral winding
It is set to substrate, substrate is in tabular, and hot plug female or/and hot plug male connector are set to silica gel sheath, the both ends of spiral winding
It is electrically connected with hot plug female or/and hot plug male connector.
Preferably, the coil module further includes the magnetic block in silica gel sheath, and magnetic block is made of permeability magnetic material,
Substrate is made of ambroin, and magnetic block edge, which buries, to be taken shape in substrate, and spiral winding is arranged around magnetic block.
Preferably, the substrate and spiral winding constitute circuit board, and substrate is the insulator of circuit board, and spiral winding is electricity
The etching wire of road plate.
Preferably, the circuit board is flexible circuit board, and one end of flex circuit plate stretches out silica gel sheath, and silica gel sheath is equipped with
For being installed with the cable-through hole of flexible circuit board, flexible circuit board and cable-through hole are interference fit, hot plug female or/and hot plug
Male connector is set to one end that flexible circuit board stretches out silica gel sheath.
Preferably, the silica gel sheath is equipped with sucker, and sucker is projected from the bottom surface of silica gel sheath, and sucker is in hollow cone
Shape, the outer diameter of the one end of sucker far from silica gel sheath bottom surface are greater than sucker close to the outer diameter of one end of silica gel sheath bottom surface.
Preferably, the quantity of the wire transmitting module is multiple, and control unit module is respectively via different wire transmitting module electricity
Property be connected to the connector interface of coil module and extraneous automobile, extraneous automobile is used to supply control unit module and coil module
Electricity.
The utility model has the advantages that it is divided into control unit module independent of each other and coil module via by wireless charging emitter,
After control unit module or coil module damage, it is only necessary to replace corresponding damage module, no replacement is required, and entire wireless charging is sent out
Injection device reduces the maintenance cost of wireless charging emitter；Ensure control unit module and line using hot plug connection
Module is enclosed with inserting with, it is ensured that the convenience that wireless charging emitter uses.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the hot plug male connector, the decomposition texture schematic diagram of hot plug female of the utility model；
Fig. 3 is the cross-sectional view of the female terminal of the utility model；
Fig. 4 is the schematic perspective view of the coil module of the utility model；
Fig. 5 is the top view of the substrate of the utility model, spiral winding and magnetic block.
Appended drawing reference includes:
1-control unit module 2-coil module, 3-wire transmitting module
4-hot plug male connector 5-hot plug, 6-first insulators of female
7-male terminal 8-inserting column, 9-second insulators
11-female terminal 12-spliced eye, 13-elastic pieces
14-pricking piece 15-silica gel sheath, 16-substrates
17-18-magnetic blocks of spiral winding.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to examples and drawings further
Explanation, the content that embodiment refers to not is restriction to the utility model.
Embodiment one
It please refers to shown in Fig. 1 to Fig. 5, a kind of wireless charging emitter for automobile of the utility model, including control
Unit module 1, coil module 2 and wire transmitting module 3 processed, control unit module 1 are independently arranged with coil module 2, i.e. control unit
Module 1 and coil module 2 separate separately fabricated molding, and control unit module 1 is used to be connected the connector interface of extraneous automobile, leads
The both ends of wire module 3 are connect with control unit module 1,2 hot plug of coil module respectively, and the both ends of wire transmitting module 3 are respectively set
There are hot plug male connector 4 or/and hot plug female 5, control unit module 1, coil module 2 are respectively equipped with wire transmitting module 3 electrically
The hot plug female 5 or/and hot plug male connector 4 of connection.
The utility model is divided into control unit module 1 independent of each other and coil module via by wireless charging emitter
2, after control unit module 1 or coil module 2 damage, it is only necessary to replace corresponding damage module, no replacement is required entire wireless charging
Electric emitter reduces the maintenance cost of wireless charging emitter；Ensure control unit module 1 using hot plug connection
And coil module 2 is with inserting with, it is ensured that the convenience that wireless charging emitter uses.
The hot plug male connector 4 includes first insulator 6, the male terminal 7 being arranged in first insulator 6, male connector end
Son 7 is provided with inserting column 8；Hot plug female 5 includes second insulator 9, the female terminal 11 being arranged in second insulator 9,
It is provided with spliced eye 12 on female terminal 11 and protrudes into the elastic piece 13 in spliced eye 12, spliced eye 12 is for being installed with inserting column
8, elastic piece 13 is used to contradict the inserting column 8 in spliced eye 12.
After hot plug male connector 4 and 5 grafting each other of hot plug female, inserting column 8 is protruded into spliced eye 12, elastic piece
13 contradict on inserting column 8, and by adding elastic piece 13, the conducting on the one hand enhancing male terminal 7 and female terminal 11 is stablized
Property, on the other hand also increase the frictional force between male terminal 7 and female terminal 11, and then increase hot plug male connector 4 and insert with heat
The bonding strength between female 5 is pulled out, prevents hot plug male connector 4 from surprisingly being touched with hot plug female 5 and disconnected from each other.
The cross section of the spliced eye 12, the cross section of inserting column 8 are circle, i.e., spliced eye 12, inserting column 8 are in circle
Column, the quantity of elastic piece 13 are multiple, central axis circular array of multiple elastic pieces 13 around spliced eye 12.Passing through will
Inserting column 8, spliced eye 12 are arranged cylindrical, it is ensured that inserting column 8 can be inserted into spliced eye 12 from any angle, compared to slotting
Hole 12, the setting of inserting column 8 are connect in non-circular column type, shorten spliced eye 12, inserting column 8 each other grafting when required position aligning time.
The wire transmitting module 3 includes that conductor (not shown) and the insulation sleeve being coated on the outside of conductor (do not show in figure
Out), male terminal 7 or female terminal 11 are provided with the punctured part for puncturing insulation sleeve, and punctured part, which has, to be spaced each other
Two pricking pieces 14, the outer diameter of insulation sleeve are greater than the distance between two pricking pieces 14, and the outer diameter of conductor is punctured slightly larger than two
The distance between piece 14, wire transmitting module 3 are clamped between two pricking pieces 14, and two pricking pieces 14 puncture the two of insulation sleeve respectively
Side is with lead-through conductors.In the installation process of terminal and wire transmitting module 3, first wire transmitting module 3 is placed on two pricking pieces 14,
Then wire transmitting module 3 is pressed, so that wire transmitting module 3 is squeezed between two pricking pieces 14, in the installation process of wire transmitting module 3
In, two pricking pieces 14 are connected after puncturing insulation sleeve with conductor, weld without terminal and conductor, promote the peace of conductor and terminal
Fill efficiency.
The coil module 2 includes silica gel sheath 15, the substrate 16 and spiral winding 17 being installed in silica gel sheath 15, utilizes silicon
15 protective substrate 16 of gum cover and spiral winding 17, after intelligent movable equipment to be charged is placed on coil module 2, silica gel
Set 15 absorbs the impact force between intelligent movable equipment and coil module 2, prevents coil module 2 by extraneous intelligent movable equipment
It damages；Spiral winding 17 is arranged on substrate 16, and substrate 16 is in tabular, and spiral winding 17 is also at tabular, hot plug female 5
Or/and hot plug male connector 4 is arranged on silica gel sheath 15, the both ends of spiral winding 17 and hot plug female 5 or/and hot plug male connector
4 are electrically connected.
The coil module 2 further includes the magnetic block 18 in silica gel sheath 15, and magnetic block 18 is made of permeability magnetic material,
For example, magnetic part is made of the metal material containing iron, cobalt or nickel, substrate 16 is made of ambroin, and magnetic block 18 is inlayed
Molding (full name in English Insert molding) is buried in substrate 16, spiral winding 17 is arranged around magnetic block 18.Via by magnetic
Property the edge of block 18 bury and be molded in substrate 16, be assembled on substrate 16 compared to magnetic block 18, greatly increase magnetic block 18 and substrate
Attachment force between 16 prevents magnetic block 18 from falling off from substrate 16.
The substrate 16 constitutes circuit board with spiral winding 17, and substrate 16 is the insulator of circuit board, and spiral winding 17 is
The etching wire of circuit board.Simplify the tectonic sieving of module, promotes the manufacture efficiency of coil module 2.
The circuit board is flexible circuit board, and one end of flex circuit plate stretches out silica gel sheath 15, and silica gel sheath 15, which is equipped with, to be used
In the cable-through hole (in figure unlabeled) for being installed with flexible circuit board, flexible circuit board and cable-through hole are interference fit, are prevented extraneous
Water enters in silica gel sheath 15 via the gap between flexible circuit board and the side wall of cable-through hole, hot plug female 5 or/and hot plug
Male connector 4 is arranged in flexible circuit board and stretches out on one end of silica gel sheath 15.
Sucker (not shown) is provided on the silica gel sheath 15, the bottom surface of sucker from silica gel sheath 15 projects, and inhales
Disk is in hollow taper, and the outer diameter of the one end of sucker far from 15 bottom surface of silica gel sheath is greater than sucker close to one end of 15 bottom surface of silica gel sheath
Outer diameter.In use, contradicting sucker on loading end to be fixed, silica gel sheath 15 is then pressed, so that the air in sucker
Silica gel sheath 15 is secured firmly on loading end using the pressure difference between air pressure in extraneous atmospheric pressure and sucker, is prevented by evolution
Only coil module 2 moves back and forth with respect to loading end.
The quantity of the wire transmitting module 3 be it is multiple, control unit module 1 electrically connects via different wire transmitting module 3 respectively
It is connected to the connector interface (for example, connector interface is cigar lighter socket) of coil module 2 and extraneous automobile, extraneous automobile is used for
It powers to control unit module 1 and coil module 2, promotes the convenience that wireless charging transmitting equipment uses.
Silica gel sheath 15 in the present embodiment comprises the following components in parts by weight: 200 parts of aluminium oxide, 70 parts of epoxy resin, first
20 parts of base vinylsiloxane rubber, 30 parts of zinc oxide, 15 parts of boron nitride, 8 parts of graphene, 5 parts of magnesium sulfate crystal whisker, silane coupling agent 2
Part, 3 parts of containing hydrogen silicone oil, 2 parts of hollow glass microballoon, 1 part of catalyst.
Wherein, the aluminium oxide is Spherical alumina particles, the micron that the Spherical alumina particles are 1:2 by mass ratio
Alumina particle and sodium rice alumina particle composition, the partial size of the micrometer alumina particle are 40-70 μm, the sodium rice oxidation
The partial size of alumina particles is 300-500nm.
Wherein, the magnesium sulfate crystal whisker is the magnesium sulfate crystal whisker that diameter is 500-800nm, draw ratio is 30-50.
Wherein, the catalyst is Karst catalyst.
The preparation method of above-mentioned silica gel sheath 15 the following steps are included:
(1) after carrying out coupling processing to aluminium oxide using silane coupling agent, zinc oxide, boron nitride, graphene, sulfuric acid is added
Mixed powder is made after mixing in magnesium whisker and hollow glass microballoon；
(2) epoxy resin, methyl vinyl silicone rubber, containing hydrogen silicone oil and catalyst are added in masticator
Carry out first time kneading；Then mixed powder is added and carries out second of kneading, kneading is uniform, and the is carried out after cooling
Epoxy glue is made in kneading three times；
(3) by epoxy glue back mixing on a mill, base-material is made；
(4) base-material is placed in mold, cold moudling, by cooling after vulcanization 25min at a temperature of 190 DEG C, obtains silica gel
Set 15.
Embodiment two
One of the present embodiment silica gel sheath 15, comprises the following components in parts by weight: 300 parts of aluminium oxide, epoxy resin 90
Part, 30 parts of methyl vinyl silicone rubber, 40 parts of zinc oxide, 25 parts of boron nitride, 15 parts of graphene, 10 parts of magnesium sulfate crystal whisker, silane
4 parts of coupling agent, 6 parts of containing hydrogen silicone oil, 5 parts of hollow glass microballoon, 3 parts of catalyst.
Wherein, the aluminium oxide is Spherical alumina particles, and the Spherical alumina particles are the micro- of 1:4 by mass ratio
Rice alumina particle and sodium rice alumina particle composition, the partial size of the micrometer alumina particle are 40-70 μm, the sodium rice oxygen
The partial size for changing alumina particles is 300-500nm.
Wherein, the magnesium sulfate crystal whisker is the magnesium sulfate crystal whisker that diameter is 500-800nm, draw ratio is 30-50.
Wherein, the catalyst is chlorine uranic acid.
The preparation method of above-mentioned silica gel sheath 15 the following steps are included:
(1) after carrying out coupling processing to aluminium oxide using silane coupling agent, zinc oxide, boron nitride, graphene, sulfuric acid is added
Mixed powder is made after mixing in magnesium whisker and hollow glass microballoon；
(2) epoxy resin, methyl vinyl silicone rubber, containing hydrogen silicone oil and catalyst are added in masticator
Carry out first time kneading；Then mixed powder is added and carries out second of kneading, kneading is uniform, and the is carried out after cooling
Epoxy glue is made in kneading three times；
(3) by epoxy glue back mixing on a mill, base-material is made；
(4) base-material is placed in mold, cold moudling, by cooling after vulcanization 20-25min at a temperature of 190-210 DEG C, is obtained
To silica gel sheath 15.
Other contents of the present embodiment are the same as example 1, and are not being repeated here.
Embodiment three
One of the present embodiment silica gel sheath 15, comprises the following components in parts by weight: 250 parts of aluminium oxide, epoxy resin 80
Part, 25 parts of methyl vinyl silicone rubber, 35 parts of zinc oxide, 20 parts of boron nitride, 12 parts of graphene, 7 parts of magnesium sulfate crystal whisker, silane are even
Join 3 parts of agent, 4 parts of containing hydrogen silicone oil, 3 parts of hollow glass microballoon, 2 parts of catalyst.
Wherein, the aluminium oxide is Spherical alumina particles, the micron that the Spherical alumina particles are 1:3 by mass ratio
Alumina particle and sodium rice alumina particle composition, the partial size of the micrometer alumina particle are 40-70 μm, the sodium rice oxidation
The partial size of alumina particles is 300-500nm.
Wherein, the magnesium sulfate crystal whisker is the magnesium sulfate crystal whisker that diameter is 500-800nm, draw ratio is 30-50.
Wherein, the catalyst is chlorine uranic acid isopropanol.
The preparation method of above-mentioned silica gel sheath 15 the following steps are included:
(1) after carrying out coupling processing to aluminium oxide using silane coupling agent, zinc oxide, boron nitride, graphene, sulfuric acid is added
Mixed powder is made after mixing in magnesium whisker and hollow glass microballoon；
(2) epoxy resin, methyl vinyl silicone rubber, containing hydrogen silicone oil and catalyst are added in masticator
Carry out first time kneading；Then mixed powder is added and carries out second of kneading, kneading is uniform, and the is carried out after cooling
Epoxy glue is made in kneading three times；
(3) by epoxy glue back mixing on a mill, base-material is made；
(4) base-material is placed in mold, cold moudling, by cooling after vulcanization 22min at a temperature of 200 DEG C, obtains silica gel
Set 15.
Other contents of the present embodiment are the same as example 1, and are not being repeated here.
The above content is only the preferred embodiment of the utility model, and the content of the present specification should not be construed as to the utility model
Limitation.
Claims (10)
1. a kind of wireless charging emitter for automobile, it is characterised in that: including control unit module, coil module and lead
Wire module, control unit module are independently arranged with coil module, and the connector that control unit module is used to be connected extraneous automobile connects
Mouthful, the both ends of wire transmitting module are connect with control unit module, coil module hot plug respectively, and the both ends of wire transmitting module are respectively equipped with
Hot plug male connector or/and hot plug female, control unit module, coil module are respectively equipped with the heat being electrically connected with wire transmitting module
Plug female or/and hot plug male connector.
2. the wireless charging emitter according to claim 1 for automobile, it is characterised in that: the hot plug male connector
Including first insulator, it is set to the male terminal of first insulator, male terminal is equipped with inserting column；Hot plug female includes the
Two insulators, the female terminal for being set to second insulator, female terminal are equipped with spliced eye and protrude into the elasticity in spliced eye
Piece, spliced eye are used to contradict the inserting column in spliced eye for being installed with inserting column, elastic piece.
3. the wireless charging emitter according to claim 2 for automobile, it is characterised in that: the cross of the spliced eye
Section, inserting column cross section be circle, the quantity of elastic piece be it is multiple, multiple elastic pieces surround the central axis of spliced eye
Circular array.
4. the wireless charging emitter according to claim 2 for automobile, it is characterised in that: the wire transmitting module packet
The insulation sleeve for including conductor and being coated on the outside of conductor, male terminal or female terminal are equipped with the punctured part for puncturing insulation sleeve,
Punctured part has two pricking pieces being spaced each other, and wire transmitting module is clamped between two pricking pieces, and two pricking pieces pierce respectively
The two sides of broken insulation sleeve are with lead-through conductors.
5. the wireless charging emitter according to claim 1 for automobile, it is characterised in that: the coil module packet
The substrate and spiral winding for including silica gel sheath, being installed in silica gel sheath, spiral winding are set to substrate, and substrate is in tabular, and heat is inserted
It pulls out female or/and hot plug male connector is set to silica gel sheath, the both ends of spiral winding and hot plug female or/and hot plug male connector electricity
Property connection.
6. the wireless charging emitter according to claim 5 for automobile, it is characterised in that: the coil module is also
Including the magnetic block being located in silica gel sheath, magnetic block is made of permeability magnetic material, and substrate is made of ambroin, magnetic block edge
It buries and takes shape in substrate, spiral winding is arranged around magnetic block.
7. the wireless charging emitter according to claim 5 for automobile, it is characterised in that: the substrate and spiral
Coil constitutes circuit board, and substrate is the insulator of circuit board, and spiral winding is the etching wire of circuit board.
8. the wireless charging emitter according to claim 7 for automobile, it is characterised in that: the circuit board is soft
Property circuit board, one end of flex circuit plate stretches out silica gel sheath, and silica gel sheath is equipped with the cable-through hole for being installed with flexible circuit board, soft
Property circuit board and cable-through hole be interference fit, hot plug female or/and hot plug male connector are set to flexible circuit board and stretch out silicon
One end of gum cover.
9. the wireless charging emitter according to claim 5 for automobile, it is characterised in that: the silica gel sheath is equipped with
Sucker, sucker are projected from the bottom surface of silica gel sheath, and sucker is in hollow taper, the one end of sucker far from silica gel sheath bottom surface it is outer
Diameter is greater than sucker close to the outer diameter of one end of silica gel sheath bottom surface.
10. the wireless charging emitter according to claim 1 for automobile, it is characterised in that: the wire transmitting module
Quantity be it is multiple, control unit module is electrically connected to coil module and extraneous automobile via different wire transmitting modules respectively
Connector interface, extraneous automobile are used to power to control unit module and coil module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956619.3U CN208738444U (en) | 2018-06-21 | 2018-06-21 | A kind of wireless charging emitter for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956619.3U CN208738444U (en) | 2018-06-21 | 2018-06-21 | A kind of wireless charging emitter for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738444U true CN208738444U (en) | 2019-04-12 |
Family
ID=66025860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820956619.3U Expired - Fee Related CN208738444U (en) | 2018-06-21 | 2018-06-21 | A kind of wireless charging emitter for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208738444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649351A (en) * | 2018-06-21 | 2018-10-12 | 东莞市摩充电子科技有限公司 | A kind of wireless charging emitter for automobile |
| CN109954830A (en) * | 2019-04-23 | 2019-07-02 | 沈阳航空航天大学 | A kind of modular electromagnetic caulking gun |
-
2018
- 2018-06-21 CN CN201820956619.3U patent/CN208738444U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649351A (en) * | 2018-06-21 | 2018-10-12 | 东莞市摩充电子科技有限公司 | A kind of wireless charging emitter for automobile |
| CN109954830A (en) * | 2019-04-23 | 2019-07-02 | 沈阳航空航天大学 | A kind of modular electromagnetic caulking gun |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 Termination date: 20200621 |