CN208001177U

CN208001177U - A kind of button cell charger

Info

Publication number: CN208001177U
Application number: CN201820527695.2U
Authority: CN
Inventors: 欧军
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-04-14
Filing date: 2018-04-14
Publication date: 2018-10-23
Anticipated expiration: 2028-04-14

Abstract

The utility model discloses a kind of button cell chargers, including resistance R1-R4, capacitance C1-C2, Light-emitting diode LED 1-LED3, USB plug J1, battery connector BT1 and integrated circuit U 1;The 1st stitch of the USB plug J1 is connect with the 4th pin of positive, the described integrated circuit U1 of the first end of the resistance R4, the first end of the capacitance C1, the Light-emitting diode LED 1 respectively;The cathode of the Light-emitting diode LED 1 is connect with the first end of the resistance R1;The second end of the resistance R1 is connect with the 1st pin of the second end of the resistance R2, the integrated circuit U1 respectively;The first end of the resistance R2 is connect with the anode of the Light-emitting diode LED 2;The utility model can be that chargeable button cell charges, while there is status indicator lamp to show charging process, convenient intuitive;USB interface power supply, convenient and efficient are provided;Circuit is simple, few using component, reduces manufacturing cost, has preferable use value.

Description

A kind of button cell charger

Technical field

The utility model is related to arrive battery boosting technology field more particularly to a kind of button cell charger.

Background technology

Button cell(button cell )Also referred to as button cell, refers to battery of the appearance and size as a small button, one As for be relatively large in diameter, thinner thickness;Button cell has obtained extensive because the bodily form is smaller in various miniature electronic products Using from 4.8mm to 30mm, thickness differs diameter from 1.0mm to 7.7mm;It is generally used for the backup power supply of each electronic product, Such as computer main board, electronic watch, electronic dictionary, electronic scale, remote controler, electronic toy, pacemaker, electronic hearing aid, counting Device, camera etc..

Button cell is also classified into chemical cell and physical battery two major classes, and chemical cell application is the most universal.They by The compositions such as anode (anode), cathode (cathode) and its electrolyte.

Wherein chargeable button cell originally may be reused, but due to button cell bodily form problem, charging difficulty compared with Height, while this kind of charger cost is higher, causes chargeable button cell recharge utilization rate not high.

Therefore, the prior art is defective, needs to improve.

Utility model content

The utility model provides a kind of button cell charger, the above problem of solution.

To solve the above problems, the technical scheme that the utility model is provided is as follows:

A kind of button cell charger, including resistance R1-R4, capacitance C1-C2, Light-emitting diode LED 1-LED3, USB are inserted Head J1, battery connector BT1 and integrated circuit U 1;The 1st stitch of the USB plug J1 respectively with the resistance R4 first End, the first end of the capacitance C1, the Light-emitting diode LED 1 positive, described integrated circuit U1 the 4th pin connection;Institute The cathode for stating Light-emitting diode LED 1 is connect with the first end of the resistance R1;The second end of the resistance R1 respectively with the electricity Hinder the second end of R2, the 1st pin connection of the integrated circuit U1;The first end of the resistance R2 and the light emitting diode The anode connection of LED2;The second end of the resistance R4 is connect with the anode of the Light-emitting diode LED 3;The USB plug J1 The 4th stitch, the second end of the capacitance C1, the cathode of the Light-emitting diode LED 2-LED3 be grounded;The integrated circuit The 3rd pin of U1 is connect with the anode of the first end of the capacitance C2, the battery connector BT1 respectively;The integrated circuit The 5th pin of U1 is connect with the first end of the resistance R3;The second end of the capacitance C2, the battery connector BT1 it is negative Pole, the second end of the resistance R3, the integrated circuit U1 the 2nd pin be grounded.

Preferred technical solution, the Light-emitting diode LED 1 are crocus light emitting diode, are indicated as charged state Lamp;The Light-emitting diode LED 2 is green LED, as charging complete indicator light;The Light-emitting diode LED 3 is Red light emitting diodes, as power supply indicator.

Preferred technical solution, the model MCP73831T-2ACI/OT of the integrated circuit U1.

The resistance value of preferred technical solution, described resistance R1, R2, R4 is 470 Ω;Described resistance R1, R2, R4 are patch Sheet resistance;The resistance R3 is variable resistance.

The capacitance value of preferred technical solution, the capacitance C1 is 4.7 μ F;The capacitance value of the capacitance C2 is 10 μ F。

Preferred technical solution, the battery connector BT1 are button cell holder;The button cell holder can accommodate The button cell of 20mm.

Advantageous effect compared with the existing technology is that using the above scheme, the utility model can be chargeable button electricity Pond is charged, while there is status indicator lamp to show charging process, convenient intuitive;USB interface power supply, convenient and efficient are provided; Circuit is simple, few using component, reduces manufacturing cost, has preferable use value.

Description of the drawings

Illustrate embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment or the prior art The required attached drawing used is briefly described in description, it is clear that, the accompanying drawings in the following description is only the one of utility model A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these Attached drawing obtains other attached drawings.

Fig. 1 is a kind of button cell charger circuit diagram of the utility model.

Specific implementation mode

For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed Thin explanation.The preferred embodiment of the utility model is given in attached drawing.But the utility model can be with many different Form is realized, however it is not limited to this specification described embodiment.Make to this on the contrary, purpose of providing these embodiments is The understanding of the disclosure of utility model is more thorough and comprehensive.

It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term used in this specification " fixation ", " integrated molding ", For illustrative purposes only, the similar unit of structure is to identical label in the figure for "left", "right" and similar statement Mark.

Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model The normally understood meaning of technical staff in art field is identical.Art used in the description of the utility model in this specification Language, which is only for the purpose of describing specific embodiments, is not intended to limitation the utility model.

As shown in Figure 1, one embodiment of the utility model is:

Preferably, the Light-emitting diode LED 1 is crocus light emitting diode, as charge status indicating light;The hair Optical diode LED2 is green LED, as charging complete indicator light;The Light-emitting diode LED 3 is emitting red light Diode, as power supply indicator.

Further, when the USB plug J1 is inserted into USB interface, the Light-emitting diode LED 3 is lighted;To button cell When being charged, the Light-emitting diode LED 1 is lighted;At the end of charging to button cell, 2 quilt of the Light-emitting diode LED It lights, while the Light-emitting diode LED 1 is extinguished.

Preferably, the model MCP73831T-2ACI/OT of the integrated circuit U1.

Preferably, the resistance value of described resistance R1, R2, R4 are 470 Ω;Described resistance R1, R2, R4 are Chip-R; The resistance R3 is variable resistance.

Further, the resistance R3 is charging current limiter resistance, and resistance is higher, and charging current is smaller, the required charging time It is longer long.

Preferably, the capacitance value of the capacitance C1 is 4.7 μ F;The capacitance value of the capacitance C2 is 10 μ F.

Preferably, the battery connector BT1 is button cell holder;The button cell holder can accommodate the button of 20mm Battery.

Further, button cell holder is an including pedestal for loading button cell, be typically welded on pcb board, just Pole part is led, it is negative to lead pole part, by having the raised line retaining rib fixed and limited to battery in the opposite edges of pedestal bottom surface respectively and determining Position seat.

It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed, It is accordingly to be regarded as the range of the utility model specification record;Also, it for those of ordinary skills, can be according to above stating It is bright to be improved or converted, and all these modifications and variations should all belong to the protection model of the appended claims for the utility model It encloses.

Claims

1. a kind of button cell charger, which is characterized in that including resistance R1-R4, capacitance C1-C2, Light-emitting diode LED 1- LED3, USB plug J1, battery connector BT1 and integrated circuit U 1;The 1st stitch of the USB plug J1 respectively with the resistance The 4th pipe of positive, the described integrated circuit U1 of the first end of R4, the first end of the capacitance C1, the Light-emitting diode LED 1 Foot connects;The cathode of the Light-emitting diode LED 1 is connect with the first end of the resistance R1;The second end of the resistance R1 point It is not connect with the 1st pin of the second end of the resistance R2, the integrated circuit U1;The first end of the resistance R2 and the hair The anode connection of optical diode LED2;The second end of the resistance R4 is connect with the anode of the Light-emitting diode LED 3;It is described The 4th stitch of USB plug J1, the second end of the capacitance C1, the Light-emitting diode LED 2-LED3 cathode be grounded;Institute The 3rd pin for stating integrated circuit U1 is connect with the anode of the first end of the capacitance C2, the battery connector BT1 respectively;Institute The 5th pin for stating integrated circuit U1 is connect with the first end of the resistance R3;The second end of the capacitance C2, battery connection The cathode of device BT1, the second end of the resistance R3, the integrated circuit U1 the 2nd pin be grounded.

2. a kind of button cell charger according to claim 1, which is characterized in that the Light-emitting diode LED 1 is tangerine Yellow light-emitting diode, as charge status indicating light;The Light-emitting diode LED 2 is green LED, as charging Complete indicator light;The Light-emitting diode LED 3 is red light emitting diodes, as power supply indicator.

3. a kind of button cell charger according to claim 1, which is characterized in that the model of the integrated circuit U1 MCP73831T-2ACI/OT。

4. a kind of button cell charger according to claim 1, which is characterized in that the resistance value of described resistance R1, R2, R4 It is 470 Ω;Described resistance R1, R2, R4 are Chip-R;The resistance R3 is variable resistance.

5. a kind of button cell charger according to claim 1, which is characterized in that the capacitance value of the capacitance C1 is 4.7μF;The capacitance value of the capacitance C2 is 10 μ F.

6. a kind of button cell charger according to claim 1, which is characterized in that the battery connector BT1 is knob Detain battery tray;The button cell holder can accommodate the button cell of 20mm.