CN212277954U - Multi-voltage adjustable current type self-recognition lithium battery charger - Google Patents
Multi-voltage adjustable current type self-recognition lithium battery charger Download PDFInfo
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- CN212277954U CN212277954U CN202020817586.1U CN202020817586U CN212277954U CN 212277954 U CN212277954 U CN 212277954U CN 202020817586 U CN202020817586 U CN 202020817586U CN 212277954 U CN212277954 U CN 212277954U
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- direct current
- current power
- power supply
- supply module
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Abstract
The utility model discloses a multi-voltage adjustable current type is from discerning lithium battery charger, which comprises a housin, be provided with the circuit board in the casing cavity, be equipped with 9V direct current power module on the circuit board, 20V direct current power module, 36V direct current power module, common mode inductance, the DC-DC converter, MCU the control unit and PWM drive module, the conducting strip stretches into in the casing through the circuit board respectively with 9V direct current power module, 20V direct current power module, 36V direct current power module is connected, the one end of charging wire stretches into in the casing through the circuit board respectively with the DC-DC converter, MCU the control unit is connected, 9V direct current power module, 20V direct current power module, 36V direct current power module is connected the power supply channel who forms three different voltages through common mode inductance and DC-DC converter respectively. The utility model is suitable for a lithium battery equipment of multiple voltage realizes that a thing is multi-purpose, and it is very convenient to use.
Description
Technical Field
The utility model relates to a lithium battery charger field, concretely relates to adjustable electric current type of multivoltage is from discernment lithium battery charger.
Background
Lithium battery chargers are chargers that are used exclusively to charge lithium ion batteries. The lithium ion battery has higher requirement on the charger and needs a protection circuit, so the lithium ion battery charger generally has higher control precision and can charge the lithium ion battery at constant current and constant voltage.
The lithium cell on the existing market is of a great variety, and the voltage system formula that corresponds is also inequality, and every kind lithium cell all need match there is corresponding lithium cell charger, so, when in actual use, in the face of the equipment of different kind lithium cells, need possess and have a plurality of lithium cell chargers to charge. The use is inconvenient, the waste is extremely large, and the purchase cost is high.
Disclosure of Invention
An object of the utility model is to overcome prior art's not enough, provide a many voltage adjustable current type self-identification lithium battery charger, realize that a thing is multi-purpose, it is convenient to use, reduces the purchase cost.
The technical scheme of the utility model as follows:
a multi-voltage adjustable current type self-recognition lithium battery charger comprises a shell with a cavity, wherein a circuit board is arranged in the cavity of the shell, an electronic element is arranged on the circuit board and comprises a 9V direct current power supply module, a 20V direct current power supply module, a 36V direct current power supply module, a common-mode inductor, a DC-DC converter, an MCU control unit and a PWM driving module, a conducting strip is convexly arranged at the bottom of the shell and extends into the shell to be respectively connected with the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module through the circuit board, the front part of the shell is connected with a charging wire, one end of the charging wire extends into the shell to be respectively connected with the DC-DC converter and the MCU control unit through the circuit board, and the other end of the charging wire is, the power supply device comprises a shell, a 9V direct current power supply module, a 20V direct current power supply module and a 36V direct current power supply module, wherein the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module are respectively connected with a DC-DC converter through a common mode inductor to form three power supply channels with different voltages, an MCU control unit is connected with the DC-DC converter through a PWM driving module and selects a proper power supply channel to supply power according to a charging object, and three charging indicating lamps respectively connected with the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module.
Further, the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module adopt AC-DC switching power supplies.
Further, the common mode inductor includes shielding case and installs the inductance body in shielding case, the inductance body includes around sinle silk and inductance coils, inductance coils winds and establishes on around the sinle silk.
Furthermore, the shielding shell and the inductor body are sealed by pouring sealant.
Furthermore, be equipped with installation space in the shielding shell, installation space's top is equipped with the opening, install the collet in the installation space, the inductance body is installed in the installation space, collet bearing inductance body bottom, inductance coil's leading-out terminal stretches out outside the shielding shell from the opening.
Furthermore, the bottom of the shielding shell protrudes outwards to form a plurality of outward flanges, and the outward flanges are provided with a plurality of mounting holes.
Further, the casing comprises an upper casing and a bottom cover, a circuit board mounting groove is formed in a mounting surface of the bottom cover, the circuit board is placed in the circuit board mounting groove, a circumferential flange is arranged on the inner side wall of the casing, a mounting opening matched with the circuit board mounting groove is formed in the bottom of the circumferential flange, the circuit board mounting groove is clamped in the mounting opening, the bottom cover is attached to the upper casing, the bottom cover and the upper casing are fastened through bolts, and the circuit board is abutted and fixed to the circumferential flange.
Furthermore, an insulating fixing seat is arranged on the bottom cover, and the conducting strip penetrates out of the insulating fixing seat and extends into the shell.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses be equipped with the power supply channel of three different voltages, can select suitable power supply channel to supply with according to the object of charging, realize that a lithium battery charger replaces three different kind lithium battery charger, reach the multi-purpose effect of a thing, its applicable in 9V, 20V, 36V's lithium battery equipment, application scope is wide for it is very convenient to use, reduces the purchase cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of a multi-voltage adjustable current type self-recognition lithium battery charger provided by the present invention;
fig. 2 is an internal structure diagram of a multi-voltage adjustable current type self-recognition lithium battery charger provided by the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a perspective view of the common mode inductor of the present invention;
fig. 5 is a front view of the common mode inductor of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
fig. 7 is an exploded view of the common mode inductor according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
Examples
Referring to fig. 1 and 2, the present embodiment provides a multi-voltage current-adjustable self-identification lithium battery charger, including a housing 1 having a cavity 11, a circuit board 2 disposed in the cavity 11 of the housing 1, an electronic component disposed on the circuit board 2, the electronic component including a common-mode inductor 3, a 9V DC power supply module 4, a 20V DC power supply module 5, a 36V DC power supply module 6, a DC-DC converter 7, an MCU control unit 8 and a PWM driving module 9, a conductive plate 12 protruding from a bottom of the housing 1, the conductive plate 12 extending into the housing 1 and connected to the 9V DC power supply module 4, the 20V DC power supply module 5 and the 36V DC power supply module 6 through the circuit board 2, a charging wire 13 connected to a front portion of the housing 1, one end of the charging wire 13 extending into the housing 1 and connected to the DC-DC converter 7, the charging wire 13 and, The MCU control unit 8 is connected, the other end of the charging wire 13 is connected with a DC plug 14, the 9V direct current power supply module 4, the 20V direct current power supply module 5 and the 36V direct current power supply module 6 are respectively connected with the DC-DC converter 7 through the common mode inductor 3 to form three power supply channels with different voltages, the MCU control unit is connected with the DC-DC converter 7 through the PWM driving module 8, in work, the MCU control unit 8 can select a proper power supply channel to supply power according to a charging object, three charging indicator lamps 10 which are respectively connected with the 9V direct current power supply module 4, the 20V direct current power supply module 5 and the 36V direct current power supply module 6 are arranged on the side portion of the shell 1, and the charging indicator lamps 10 are on when supplying power, so that which direct current power supply module works is displayed.
The casing 1 is composed of an upper casing 101 and a lower casing 102, a circuit board mounting groove 103 is formed in a mounting surface of the lower casing 102, the circuit board 2 is placed in the circuit board mounting groove 103, as shown in fig. 3, a circumferential flange 104 is arranged on an inner side wall of the casing 1, a mounting opening matched with the circuit board mounting groove 103 is formed in the bottom of the circumferential flange 104, the circuit board mounting groove 103 is clamped into the mounting opening, the lower casing 102 is attached to the upper casing 101, the lower casing 102 and the upper casing 101 are fastened through a bolt 105, and the circuit board 2 is abutted and fixed to the circumferential flange 104. Simple structure, firmness and convenient disassembly and assembly.
The bottom cover 102 is provided with an insulating fixing seat 106, and the conducting strip 12 penetrates out of the insulating fixing seat 106 and extends into the shell 1. Insulating fixing base 106 can freely the dismouting, and insulating fixing base 106 self intensity is high moreover, and conducting strip 12 is difficult not hard up in insulating fixing base 106, has improved the life of charger.
The 9V direct current power supply module 4, the 20V direct current power supply module 5 and the 36V direct current power supply module 6 adopt an AC-DC switching power supply. The rectifier is used for rectifying alternating current commercial power into 9V, 20V and 36V direct current.
The common mode inductor 3 is used for filtering direct current output by the 9V direct current power supply module 4, the 20V direct current power supply module 5 and the 36V direct current power supply module 6, and providing stable input voltage for the DC-DC converter 7.
As shown in fig. 4 to 7, the common mode inductor 3 includes a shielding shell 31 and an inductor body 32 installed in the shielding shell 31, the inductor body 32 includes a winding core 321 and an inductor coil 322, and the inductor coil 322 is wound on the winding core 321. By using the common mode inductor 3 with the shielding shell 31, electromagnetic interference generated by the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module can be effectively shielded, so that the filtering effect of the common mode inductor 3 is better.
Further, the space between the shielding shell 31 and the inductor body 32 is sealed by a potting adhesive 33. The potting adhesive 33 fixes the shielding shell 31 and the inductor body 32 together, thereby further increasing the shielding effect.
Further, a mounting space 310 is provided in the shielding case 31, an opening 311 is provided at the top of the mounting space 310, a bottom support 312 is provided in the mounting space 310, the inductor body 32 is mounted in the mounting space 310, the bottom support 312 supports the bottom of the inductor body 32, and the outlet end of the inductor coil 322 extends out of the shielding case 31 from the opening. Simple structure and convenient production.
Further, the bottom of the shielding shell 31 is protruded with a plurality of flanges 313, and the flanges 313 are provided with a plurality of mounting holes 314. The fixing device is fixed on the circuit board through the mounting hole 314, and the installation is convenient.
The MCU control unit 8 outputs a control signal corresponding to the power supply channel to the PWM driving module 9 to control the output current and voltage of the DC-DC converter 7.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides an adjustable electric current type of multivoltage is from discernment lithium battery charger, is including the casing that has the cavity, be provided with the circuit board in the casing cavity, be equipped with electronic component on the circuit board, its characterized in that: the electronic element comprises a 9V direct current power supply module, a 20V direct current power supply module, a 36V direct current power supply module, a common mode inductor, a DC-DC converter, an MCU control unit and a PWM driving module, wherein the bottom of the shell is convexly provided with a conducting strip, the conducting strip extends into the shell and is respectively connected with the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module through a circuit board, the front part of the shell is connected with a charging wire, one end of the charging wire extends into the shell and is respectively connected with the DC-DC converter and the MCU control unit through the circuit board, the other end of the charging wire is connected with a DC plug, the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module are respectively connected with the DC-DC converter through the common mode inductor, the MCU control unit is connected with the DC-DC converter through the PWM driving module, selects a proper power supply channel to supply power according to a charging object, and is provided with three charging indicator lamps which are respectively connected with the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module on the side part of the shell.
2. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 1, wherein: the 9V direct current power supply module, the 20V direct current power supply module and the 36V direct current power supply module adopt AC-DC switching power supplies.
3. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 1, wherein: the common mode inductor comprises a shielding shell and an inductor body arranged in the shielding shell, wherein the inductor body comprises a winding core and an inductor coil, and the inductor coil is wound on the winding core.
4. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 3, wherein: the shielding shell and the inductor body are sealed by pouring sealant.
5. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 3, wherein: the inductor comprises a shielding shell, and is characterized in that an installation space is arranged in the shielding shell, an opening is formed in the top of the installation space, a bottom support is installed in the installation space, the bottom support supports the bottom of the inductor body, and the wire outlet end of the inductor coil extends out of the shielding shell from the opening.
6. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 3, wherein: the bottom of the shielding shell protrudes outwards and is provided with a plurality of outward flanges, and the outward flanges are provided with a plurality of mounting holes.
7. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 1, wherein: the casing comprises epitheca and bottom, be equipped with the circuit board mounting groove on the installation face of bottom, the circuit board is placed in the circuit board mounting groove, the inside wall of casing is equipped with the hoop flange, the bottom of hoop flange be equipped with the installing port of circuit board mounting groove looks adaptation, the circuit board mounting groove card advances in the installing port, and make bottom and epitheca laminating, pass through the bolt-up between bottom and the epitheca, the circuit board with the hoop flange is contradicted fixedly.
8. The multi-voltage adjustable current type self-identifying lithium battery charger according to claim 7, wherein: the bottom cover is provided with an insulating fixing seat, and the conducting strip penetrates out of the insulating fixing seat and extends into the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817586.1U CN212277954U (en) | 2020-05-17 | 2020-05-17 | Multi-voltage adjustable current type self-recognition lithium battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020817586.1U CN212277954U (en) | 2020-05-17 | 2020-05-17 | Multi-voltage adjustable current type self-recognition lithium battery charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212277954U true CN212277954U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020817586.1U Active CN212277954U (en) | 2020-05-17 | 2020-05-17 | Multi-voltage adjustable current type self-recognition lithium battery charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212277954U (en) |
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2020
- 2020-05-17 CN CN202020817586.1U patent/CN212277954U/en active Active
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Effective date of registration: 20230505 Address after: 518000 608, Building C, Hexi Huanggangling Industrial Park, Hangcheng Industrial Zone, Taoyuan Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Tiandepu Energy Storage Technology Co.,Ltd. Address before: 518000 floor 5 and 6, building C, huanggangling Industrial Zone, Hexi village, Xixiang Township, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KINGSAKO ELECTRIC CO.,LTD. |