CN111210983A - Coil assembly and wireless charger - Google Patents
Coil assembly and wireless charger Download PDFInfo
- Publication number
- CN111210983A CN111210983A CN202010106145.5A CN202010106145A CN111210983A CN 111210983 A CN111210983 A CN 111210983A CN 202010106145 A CN202010106145 A CN 202010106145A CN 111210983 A CN111210983 A CN 111210983A
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- coil
- bracket
- hole
- groove
- assembly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of wireless charging, in particular to a coil assembly and a wireless charger.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a coil assembly and a wireless charger.
Background
The coil of the conventional vehicle-mounted charger is exposed, the position of the coil is not fixed, the coil is not protected, the position of a pin of the coil is not fixed, the space where a temperature sensor is located is wide, the temperature sensor cannot sense the temperature change on the coil obviously, the function of identifying foreign matters cannot be achieved well, and the temperature change reaction precision is insufficient; the temperature sensor has poor recognition capability, the tiny temperature change of the coil can not be recognized and sensed, some metal foreign bodies can not be recognized correctly, and the metal foreign bodies can be heated continuously when the charger works, so that potential safety hazards can be brought.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the coil component and the wireless charger are provided, so that the coil is effectively protected, the foreign matter detection capability of the wireless charger during working is improved, and the safety performance of a product is improved.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
the utility model provides a coil assembly, includes first coil, second coil and third coil, still includes the bracket component, be equipped with the first recess that is used for holding first coil on the side of bracket component, be equipped with the second recess that is used for holding the second coil and the third recess that is used for holding the third coil on the another side that a side of bracket component is relative, first coil contacts with second coil and third coil respectively.
The second technical scheme adopted by the invention is as follows:
a wireless charger comprises a circuit board, a magnetic sheet and a coil assembly;
the coil assembly is positioned between the circuit board and the magnetic sheet and is respectively attached to the circuit board and the magnetic sheet;
be equipped with three temperature sensor on the circuit board, it is three temperature sensor is configured as the temperature value of the first coil, second coil and the third coil of detecting coil assembly respectively, be equipped with respectively on coil assembly's the bracket component with first through-hole, second through-hole and the third through-hole of three temperature sensor looks adaptation.
The invention has the beneficial effects that:
through setting up the bracket component and being provided with the first recess that is used for holding first coil on a side of bracket component, be provided with the second recess that is used for holding the second coil and the third recess that is used for holding the third coil on the opposite another side of a side of bracket component, can carry on spacingly to first coil, second coil and third coil respectively like this to the realization is to the effective protection of first coil, second coil and third coil, and then improves the security performance of product.
Drawings
FIG. 1 is a schematic diagram of a coil assembly according to the present invention;
FIG. 2 is an exploded view of a coil assembly according to the present invention;
FIG. 3 is a schematic structural view of a bracket assembly of a coil assembly according to the present invention;
FIG. 4 is a schematic structural view of a bracket assembly of a coil assembly according to the present invention;
FIG. 5 is a schematic diagram of a wireless charger according to the present invention;
description of reference numerals:
1. a bracket assembly; 11. a first bracket; 111. a first groove; 112. a first through hole; 113. a second through hole; 114. a first wire winding plate; 115. a second wire winding plate; 12. a second bracket; 121. a second groove; 122. a third groove; 123. a third through hole; 124. a third wire winding plate;
2. a first coil;
3. a second coil;
4. a third coil;
5. a magnetic sheet;
6. a circuit board; 61. a temperature sensor;
7. a first shield case;
8. a second shield case;
9. and a heat sink.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a technical solution provided by the present invention:
the utility model provides a coil assembly, includes first coil, second coil and third coil, still includes the bracket component, be equipped with the first recess that is used for holding first coil on the side of bracket component, be equipped with the second recess that is used for holding the second coil and the third recess that is used for holding the third coil on the another side that a side of bracket component is relative, first coil contacts with second coil and third coil respectively.
From the above description, the beneficial effects of the present invention are:
through setting up the bracket component and being provided with the first recess that is used for holding first coil on a side of bracket component, be provided with the second recess that is used for holding the second coil and the third recess that is used for holding the third coil on the opposite another side of a side of bracket component, can carry on spacingly to first coil, second coil and third coil respectively like this to the realization is to the effective protection of first coil, second coil and third coil, and then improves the security performance of product.
Further, the bracket assembly comprises a first bracket and a second bracket which are mutually attached, the first bracket and the second bracket are integrally formed, the first groove is formed in the first bracket, and the second groove and the third groove are formed in the second bracket;
the first groove, the second groove and the third groove are all through grooves, and the first groove is communicated with the second groove and the third groove respectively.
As can be seen from the above description, by designing the above structure, it can be ensured that the first coil, the second coil and the third coil do not shift, and effective protection of the first coil, the second coil and the third coil is achieved, and at the same time, the first coil can be in contact with the second coil and the third coil, so as to ensure stable operation of the coils.
Furthermore, a first winding board and a second winding board are arranged on one side face, close to the second support, of the first support, the first winding board and the second winding board are respectively located at two opposite ends of the first support, the second coil is wound on the first winding board, and the third coil is wound on the second winding board.
According to the above description, the first winding board and the second winding board are arranged on the side face, close to the second support, of the first support, so that the second coil and the third coil can be wound on the winding board, the second coil and the third coil can be more stably fixed in the corresponding grooves, the second coil and the third coil are prevented from shifting, the first winding board and the second winding board simultaneously support the first coil, the first coil can be more stably fixed in the first groove, the first coil is prevented from shifting, the coils are effectively protected, and the product safety performance can be improved.
Furthermore, a third winding board is arranged on one side face, close to the first support, of the second support, the third winding board is located between the first winding board and the second winding board, and the first coil is wound on the third winding board.
According to the above description, the third winding board is arranged on the side face, close to the first support, of the second support, so that the first coil can be wound on the third winding board neatly, the first coil can be fixed in the first groove more firmly, the third winding board is arranged to support the second coil and the third coil simultaneously, the stability of the second coil and the third coil in the corresponding grooves is improved, the first coil, the second coil and the third coil are prevented from shifting, the coils are effectively protected, and the product safety performance can be improved.
Furthermore, the first groove is located at the center of the first support, and the second groove and the third groove are located at two opposite ends of the second support respectively.
As can be seen from the above description, the first groove is disposed at the center of the first bracket, and the second groove and the third groove are disposed at the opposite ends of the second bracket, respectively, such a structural design enables the coils to contact with each other, and enables the coils to support each other, thereby further increasing the stability of the coils on the bracket assembly.
Further, the shape of the first groove is matched with the shape of the first coil, the shape of the second groove is matched with the shape of the second coil, and the shape of the third groove is matched with the shape of the third coil.
According to the above description, the shape of the first groove is matched with that of the first coil, the shape of the second groove is matched with that of the second coil, and the shape of the third groove is matched with that of the third coil, so that the coils can be more stably fixed in the corresponding grooves by the structural design, and the coils can be better limited.
Furthermore, the bracket component border outwards extends and forms the fixed block, set up two above support grooves on the fixed block, adjacent two the interval between the support groove equals.
According to the above description, the edge of the bracket component extends outwards to form the fixing block, and the fixing block is provided with more than two supporting grooves, so that the coil end can be fixed, the coil end is not easy to skew, and the subsequent coil component is convenient to assemble.
Referring to fig. 5, another technical solution provided by the present invention:
a wireless charger comprises a circuit board, a magnetic sheet and a coil assembly;
the coil assembly is positioned between the circuit board and the magnetic sheet and is respectively attached to the circuit board and the magnetic sheet;
be equipped with three temperature sensor on the circuit board, it is three temperature sensor is configured as the temperature value of the first coil, second coil and the third coil of detecting coil assembly respectively, be equipped with respectively on coil assembly's the bracket component with first through-hole, second through-hole and the third through-hole of three temperature sensor looks adaptation.
From the above description, the beneficial effects of the present invention are:
the laminating of wireless charger equipment back circuit board is on coil assembly, temperature sensor on the circuit board is in the first through-hole of bracket component, the second through-hole and the third through-hole, the equipment back circuit board, bracket component and magnetic sheet are with first coil, second coil and third coil parcel are in the middle of the airtight space, and the unnecessary space also is filled up by the bracket component in the middle of the coil, inside air volume will be few like this, when first coil, during the temperature variation of second coil and third coil, because the airtight space is narrow and small, the temperature sensor that three coil corresponds will sense temperature variation rapidly, thereby make the precision of temperature sensor perception temperature variation more increase.
Furthermore, the second through hole and the third through hole are both arranged on one side surface of the bracket component of the coil component, and the first through hole is arranged on the other side surface opposite to one side surface of the bracket component of the coil component.
Furthermore, the first groove is located between the second through hole and the third through hole, the first through hole is located between the second groove and the third groove, and centers of the first through hole, the second through hole and the third through hole are located on the same straight line.
Referring to fig. 1 to 4, a first embodiment of the present invention is:
referring to fig. 1 and 2, a coil assembly includes a first coil 2, a second coil 3, a third coil 4, and a bracket assembly 1, wherein a first groove 111 for accommodating the first coil 2 is disposed on one side surface of the bracket assembly 1, a second groove 121 for accommodating the second coil 3 and a third groove 122 for accommodating the third coil 4 are disposed on the other side surface of the bracket assembly 1 opposite to the one side surface, and the first coil 2 is in contact with the second coil 3 and the third coil 4, respectively.
The bracket assembly 1 comprises a first bracket 11 and a second bracket 12 which are attached to each other, the first bracket 11 and the second bracket 12 are integrally formed, the first groove 111 is arranged on the first bracket 11, and the second groove 121 and the third groove 122 are arranged on the second bracket 12;
referring to fig. 3 and 4, the first groove 111, the second groove 121 and the third groove 122 are all through grooves, and the first groove 111 is respectively communicated with the second groove 121 and the third groove 122.
All seted up the fourth recess on the lateral wall at the relative both ends of first recess 111, the coil end of a thread of being convenient for places, rational utilization bracket component 1's space, and then can reduce the holistic volume of product.
A first winding plate 114 and a second winding plate 115 are arranged on one side surface of the first bracket 11 close to the second bracket 12, the first winding plate 114 and the second winding plate 115 are respectively arranged at two opposite ends of the first bracket 11, the second coil 3 is wound on the first winding plate 114, and the third coil 4 is wound on the second winding plate 115.
A third winding plate 124 is arranged on one side surface of the second bracket 12 close to the first bracket 11, the third winding plate 124 is positioned between the first winding plate 114 and the second winding plate 115, and the first coil 2 is wound on the third winding plate 124.
The first winding wire, the second winding plate 115 and the third winding plate 124 are located in the same plane, and the third winding plate 124 is located between the first winding plate 114 and the second winding plate 115 and is spaced from the first winding plate 114 and the second winding plate 115 respectively.
The first groove 111 is located at the center of the first bracket 11, and the second groove 121 and the third groove 122 are located at the opposite ends of the second bracket 12, respectively.
The shape of the first recess 111 is adapted to the shape of the first coil 2, the shape of the second recess 121 is adapted to the shape of the second coil 3, and the shape of the third recess 122 is adapted to the shape of the third coil 4.
Referring to fig. 4, the edge of the bracket assembly 1 extends outward to form a fixed block, the fixed block is provided with more than two supporting grooves, and the distance between two adjacent supporting grooves is equal.
Referring to fig. 1 to 5, a second embodiment of the present invention is:
a wireless charger comprises a circuit board 6, a magnetic sheet 5 and a coil assembly;
the coil assembly is positioned between the circuit board 6 and the magnetic sheet 5 and is respectively attached to the circuit board 6 and the magnetic sheet 5;
be equipped with three temperature sensor 61 on the circuit board 6, three temperature sensor 61 is configured as the temperature value of the first coil 2, second coil 3 and the third coil 4 of detection coil assembly respectively, be equipped with first through-hole 112, second through-hole 113 and the third through-hole 123 with three temperature sensor 61 looks adaptation respectively on the bracket component 1 of coil assembly.
The second through hole 113 and the third through hole 123 are both disposed on one side surface of the bracket assembly 1 of the coil assembly, and the first through hole 112 is disposed on the other side surface opposite to one side surface of the bracket assembly 1 of the coil assembly.
The first groove 111 is located between the second through hole 113 and the third through hole 123, the first through hole 112 is located between the second groove 121 and the third groove 122, and centers of the first through hole 112, the second through hole 113 and the third through hole 123 are located on the same straight line.
A fourth through hole is formed in the first winding plate 114, a fifth through hole is formed in the second winding plate 115, a sixth through hole is formed in the third winding plate 124, the fourth through hole is opposite to and communicated with the second through hole 113, the fifth through hole is opposite to and communicated with the third through hole 123, and the sixth through hole is opposite to and communicated with the first through hole 112.
It is three temperature sensor 61 is first temperature sensor, second temperature sensor and third temperature sensor respectively, second temperature sensor is located between first temperature sensor and the third temperature sensor, first temperature sensor runs through second through-hole 113 and fourth through-hole in proper order, second temperature sensor runs through sixth through-hole and first through-hole 112 in proper order, third temperature sensor runs through third through-hole 123 and fifth through-hole in proper order.
The wireless charger further comprises a shell, a first shielding cover 7, a second shielding cover 8 and radiating fins 9, wherein the circuit board 6, the magnetic sheet 5, the coil assembly, the first shielding cover 7, the second shielding cover 8 and the radiating fins 9 are all arranged in the inner cavity of the shell, and the coil assembly, the magnetic sheet 5, the first shielding cover 7, the second shielding cover 8 and the radiating fins 9 are sequentially stacked on the surface of the circuit board 6.
When the wireless charger works, if there is a metal foreign object directly over the coil, the charging efficiency will be reduced, in order to receive the end can satisfy sufficient charging power, the wireless charger system will automatically improve the transmitted power to satisfy the receiving end power requirement, then the current through the coil will be increased, the temperature that the coil produced will also come faster than when there is no foreign object, the temperature sensor 61 perception temperature change's of this scheme design precision is higher, the small change of coil temperature, temperature sensor 61 will have the ability perception of discerning, the ability of discerning the metal foreign object also can be stronger. If the temperature sensor 61 has poor recognition capability, the small temperature change may not be recognized and sensed, some metal foreign matters may not be correctly recognized, and the metal foreign matters will also continuously increase in temperature when the charger operates, so as to bring potential safety hazards to users.
In summary, the invention provides a coil assembly and a wireless charger, wherein the bracket assembly is provided with a first groove for accommodating the first coil on one side surface of the bracket assembly, and a second groove for accommodating the second coil and a third groove for accommodating the third coil are provided on the other side surface opposite to the one side surface of the bracket assembly, so that the first coil, the second coil and the third coil can be respectively limited, thereby effectively protecting the first coil, the second coil and the third coil, and further improving the safety performance of a product; the laminating of wireless charger equipment back circuit board is on coil assembly, temperature sensor on the circuit board is in the first through-hole of bracket component, the second through-hole and the third through-hole, the equipment back circuit board, bracket component and magnetic sheet are with first coil, second coil and third coil parcel are in the middle of the airtight space, and the unnecessary space also is filled up by the bracket component in the middle of the coil, inside air volume will be few like this, when first coil, during the temperature variation of second coil and third coil, because the airtight space is narrow and small, the temperature sensor that three coil corresponds will sense temperature variation rapidly, thereby make the precision of temperature sensor perception temperature variation more increase.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a coil assembly, includes first coil, second coil and third coil, its characterized in that still includes the bracket component, be equipped with the first recess that is used for holding first coil on the side of bracket component, be equipped with the second recess that is used for holding the second coil and the third recess that is used for holding the third coil on the opposite another side of a side of bracket component, first coil contacts with second coil and third coil respectively.
2. The coil assembly of claim 1, wherein the bracket assembly comprises a first bracket and a second bracket attached to each other and integrally formed with each other, the first groove is disposed on the first bracket, and the second groove and the third groove are disposed on the second bracket;
the first groove, the second groove and the third groove are all through grooves, and the first groove is communicated with the second groove and the third groove respectively.
3. The coil assembly of claim 2, wherein the first bracket has a first winding plate and a second winding plate on a side thereof adjacent to the second bracket, the first winding plate and the second winding plate being disposed at opposite ends of the first bracket, the second coil being wound on the first winding plate, and the third coil being wound on the second winding plate.
4. The coil assembly of claim 2, wherein a third winding plate is disposed on a side of the second bracket adjacent to the first bracket, the third winding plate being disposed between the first winding plate and the second winding plate, the first coil being wound on the third winding plate.
5. The coil assembly of claim 2, wherein the first recess is centrally located on the first support, and the second and third recesses are located at opposite ends of the second support.
6. A coil assembly according to claim 1, wherein the shape of the first recess is adapted to the shape of the first coil, the shape of the second recess is adapted to the shape of the second coil, and the shape of the third recess is adapted to the shape of the third coil.
7. The coil assembly according to claim 1, wherein the bracket assembly has an edge extending outward to form a fixing block, the fixing block has two or more supporting slots, and the supporting slots are spaced at equal intervals.
8. A wireless charger comprising a circuit board, a magnetic sheet, and the coil assembly of any one of claims 1-7;
the coil assembly is positioned between the circuit board and the magnetic sheet and is respectively attached to the circuit board and the magnetic sheet;
be equipped with three temperature sensor on the circuit board, it is three temperature sensor is configured as the temperature value of the first coil, second coil and the third coil of detecting coil assembly respectively, be equipped with respectively on coil assembly's the bracket component with first through-hole, second through-hole and the third through-hole of three temperature sensor looks adaptation.
9. The wireless charger of claim 8, wherein the second and third through holes are each disposed on one side of the bracket assembly of the coil assembly, and the first through hole is disposed on the other side of the bracket assembly of the coil assembly opposite to the one side.
10. The wireless charger of claim 9, wherein the first recess is located between the second through hole and the third through hole, the first through hole is located between the second recess and the third recess, and centers of the first through hole, the second through hole, and the third through hole are located on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106145.5A CN111210983A (en) | 2020-02-21 | 2020-02-21 | Coil assembly and wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106145.5A CN111210983A (en) | 2020-02-21 | 2020-02-21 | Coil assembly and wireless charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111210983A true CN111210983A (en) | 2020-05-29 |
Family
ID=70788583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010106145.5A Pending CN111210983A (en) | 2020-02-21 | 2020-02-21 | Coil assembly and wireless charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111210983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023068582A1 (en) * | 2021-10-18 | 2023-04-27 | 삼성전자 주식회사 | Wireless charging coil and electronic device comprising same |
-
2020
- 2020-02-21 CN CN202010106145.5A patent/CN111210983A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023068582A1 (en) * | 2021-10-18 | 2023-04-27 | 삼성전자 주식회사 | Wireless charging coil and electronic device comprising same |
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