CN211790811U

CN211790811U - Intelligent charging system for electronic scale

Info

Publication number: CN211790811U
Application number: CN202020091959.1U
Authority: CN
Inventors: 刘芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-27
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses an electronic scale intelligent charging system contains electronic scale intelligent charging system, electronic scale intelligent charging system includes power supply unit, vary voltage circuit, rectifier circuit, first voltage stabilizing circuit and charging circuit, the voltage of vary voltage circuit modulation power supply unit output, the voltage of rectifier circuit modulation vary voltage circuit output, the voltage of first voltage stabilizing circuit electric connection rectifier circuit, the stable rectifier circuit output. The utility model discloses set up power supply unit, vary voltage circuit, rectifier circuit, first voltage stabilizing circuit, charging circuit, control IC, first pin, the second pin, the third pin, the fourth pin, analog-to-digital conversion circuit, the power end, control switch, first connecting point, the second tie point, the third tie point, the fourth tie point, second voltage stabilizing circuit, double-colored pilot lamp, display device and power module, solved the battery and filled not full and continued the problem of charging damage battery.

Description

Intelligent charging system for electronic scale

Technical Field

The utility model relates to an electronic scale technical field specifically is an electronic scale intelligent charging system.

Background

An electronic scale is one of the conventional tools for measuring weight, and the measurement of the charging state depends on the signal sensing of the electronic devices on the internal circuit to achieve the result of precisely measuring the charging voltage state, the charging circuit of the electronic scale includes the electronic devices such as resistors, diodes and transistors (including BJT, MOS, MOSFET, etc.), and the charging circuit formed by these electronic devices is susceptible to the influence of the external environment, especially the temperature, so as to affect the original circuit characteristics of these electronic devices, which may further affect the characteristics of the charging circuit, resulting in inaccurate indication of the charging state of the electronic scale, in other words, when the indication of the charging state of the electronic scale is not accurate, for example, when the indicating state of the charging state of the electric quantity of the electronic scale has reached a full state, but the battery of the electronic scale has not actually reached a saturated state, the electronic scale will be quickly charged due to the insufficient battery capacity and easy exhaustion, or due to the memory effect of the battery voltage, under the condition that the battery is not fully charged for a long time, the highest voltage value (saturation voltage value) memorized by the battery is gradually reduced, so that the battery reaches the state of electric saturation when the charged electric quantity reaches the memory voltage value, but actually does not reach the saturation voltage value, so the battery is always in an insufficient state, the use efficiency is reduced, alternatively, when the state of charge indication of the electronic scale has not reached a full state, but the battery of the electronic scale has actually reached a saturated state, the operation of continuously charging the electronic scale will cause excessive charging, increase of the battery temperature and increase of the internal resistance of the battery, which is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic scale intelligent charging system possesses the advantage that can be full of the battery and continuously charge and can not damage the battery, has solved the battery and has filled not full and continuously charge the problem of damaging the battery.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electronic scale intelligence charging system, includes electronic scale intelligence charging system, electronic scale intelligence charging system includes power supply unit, vary voltage circuit, rectifier circuit, first voltage stabilizing circuit and charging circuit, the voltage that vary voltage circuit modulation power supply unit exported, the voltage that rectifier circuit modulation vary voltage circuit exported, first voltage stabilizing circuit electric connection rectifier circuit stabilizes the voltage that rectifier circuit exported, charging circuit includes control IC, first pin, second pin, third pin, fourth pin, analog-to-digital conversion circuit, power end, control switch, first tie point, second tie point, third tie point, fourth tie point and second voltage stabilizing circuit.

Preferably, the charging circuit is electrically connected to the first voltage stabilizing circuit and the power module of the electronic scale, and the charging circuit includes a control IC, a control switch and a second voltage stabilizing circuit.

Preferably, the control IC has an analog-to-digital conversion circuit, a power source terminal and a plurality of pins, and the control switch, the first connection point and the second connection point are all connected to the power source module.

Preferably, the third connection point, the connection control IC, the first pin, the analog-to-digital conversion circuit, and the fourth connection point are all connected to the control IC and the second pin.

Preferably, the second voltage stabilizing circuit is connected to the analog-to-digital converting circuit, the first pin, the power source terminal and the third connecting point.

Preferably, the charging circuit is electrically connected with a double-color indicator lamp and a display device.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the control switch of the present invention comprises a multi-pin switch, wherein the first connection point is connected to the second connection point, the third connection point is connected to the first pin of the control IC and the analog-digital conversion circuit, and the fourth connection point is connected to the second pin of the control IC, wherein when the control switch is turned on (short-circuited), the first connection point, the second connection point, the third connection point and the fourth connection point are in a conductive connection state; when the control switch is turned off (open), the third connection point, the fourth connection point, the first connection point and the second connection point are in a disconnected state, in other words, the second pin of the control IC connected to the fourth connection point of the control switch can be used to detect whether the control switch is turned on or off, that is, when the control switch is turned off, the fourth connection point does not conduct the power module, and therefore, the second pin of the control IC is in a low voltage level state; when the control switch is turned on, the fourth connection point conducts the third connection point and the power module, and further the second pin of the control IC is in a high voltage level state, so that the second pin of the control IC can detect and judge that the electronic scale is in a turned-on or turned-off state at present, and the first pin of the control IC detects whether the first pin is connected to the power supply unit or not through the high and low voltage level state of the first pin.

2. The utility model discloses an electronic scale intelligent charging system contains a double-color indicator, connect the third pin and the fourth pin of control IC, when the electronic scale intelligent charging system obtains electric power by the power supply unit, the first pin of control IC is high voltage quasi-level, the third pin of control IC outputs high voltage quasi-level, the double-color indicator shows red, show that the power module of electronic scale is in the charging state at present, in addition, according to the internal parameter calculation result of control IC, if the electric quantity of electronic scale reaches saturation, the fourth pin of control IC outputs high voltage quasi-level, the third pin outputs low voltage quasi-level, the double-color indicator shows that the battery is fully charged with the green light, the control IC is connected to a display device for showing the electric power of the power module of electronic scale, the analog digital conversion circuit shows the voltage value and the charging current value of the power module with the digital value on the display device, when the control switch is turned off and the first pin of the control IC is at a high voltage level, the control IC outputs a high voltage level to the third pin, the two-color indicator light displays red color to indicate that the power module of the electronic scale is currently in a charging state, when the control switch is turned on and the first pin of the control IC is at a high voltage level and the second pin is at a high voltage level, the control IC outputs a high voltage level to the third pin, the two-color indicator light displays red color to indicate that the power module of the electronic scale is currently in a charging state and the electronic scale enters an on mode, when the control switch is turned on and the first pin of the control IC is at a low voltage level and the second pin is at a high voltage level, the control IC outputs a low voltage level to the third pin and the fourth pin, the two-color indicator light does not display color to indicate that the electronic scale is not currently charged by the power supply unit and the electronic scale enters the on mode, in addition, the control IC can be electrically connected, the method is used for controlling the open circuit and the short circuit of the charging current so as to avoid overcharging the electronic scale, in addition, parameters of different power modules can be obtained through counting the service hours of the control IC to the power module and the voltage of the power module in a descending manner, and a better charging scheme can be provided for the charging of the power module according to the parameters.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

fig. 2 is a schematic circuit diagram of the present invention.

In the figure: 1. an intelligent charging system of an electronic scale; 11. a power supply unit; 12. a voltage transformation circuit; 13. A rectifying circuit; 14. a first voltage stabilizing circuit; 15. a charging circuit; 151. a control IC; 1511. A first pin; 1512. a second pin; 1513. a third pin; 1514. a fourth pin; 1515. an analog-to-digital conversion circuit; 1516. a power supply terminal; 152. a control switch; 1521. a first connection point; 1522. a second connection point; 1523. a third connection point; 1524. a fourth connection point; 153. a second voltage stabilizing circuit; 16. a two-color indicator light; 17. a display device; 18. and a power supply module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses an electronic scale intelligence charging system 1, power supply unit 11, vary voltage circuit 12, rectifier circuit 13, first voltage stabilizing circuit 14, charging circuit 15, control IC151, first pin 1511, second pin 1512, third pin 1513, fourth pin 1514, analog-to-digital converter circuit 1515, power end 1516, control switch 152, first connection point 1521, second connection point 1522, third connection point 1523, fourth connection point 1524, second voltage stabilizing circuit 153, double-colored pilot lamp 16, display device 17 and power module 18 part are the parts that general standard or technical person in the art know, its structure and principle all are that this technical person can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-2, an intelligent electronic scale charging system includes an intelligent electronic scale charging system 1, the intelligent electronic scale charging system 1 includes a power supply unit 11, a transformer circuit 12, a rectifier circuit 13, a first voltage regulator circuit 14 and a charging circuit 15, the transformer circuit 12 modulates a voltage output by the power supply unit 11, the rectifier circuit 13 modulates a voltage output by the transformer circuit 12, the first voltage regulator circuit 14 is electrically connected to the rectifier circuit 13 to stabilize the voltage output by the rectifier circuit 13, the charging circuit 15 includes a control IC151, a first pin 1511, a second pin 1512, a third pin 1513, a fourth pin 1514, an analog-to-digital converter 1515, a power supply terminal 1516, a control switch 152, a first connection 1521, a second connection 1522, a third connection 1512, a fourth connection 4 and a second voltage regulator circuit 153, the charging circuit 15215 is electrically connected to the first voltage regulator circuit 14 and a power supply module 18 of the electronic scale, the charging circuit 15 includes a control IC151, a control switch 152 and a second voltage regulator circuit 153, the control IC151 has an analog-to-digital conversion circuit 1515, a power source 1516 and a plurality of pins, the control switch 152, a first connection 1521 and a second connection 1522 are all connected to the power module 18, a third connection 1523, the connection control IC151, a first pin 1511, an analog-to-digital conversion circuit 1515 and a fourth connection 1524 are all connected to the control IC151 and the second pin 1512, the second voltage regulator circuit 153 is connected to the analog-to-digital conversion circuit 1515, the first pin 1511, the power source 1516 and the third connection 1523, the charging circuit 15 is electrically connected to the two-color indicator 16 and the display 17, the control switch 152 includes a multi-pin switch, wherein the first connection 1 is connected to the second connection 1522, the third connection 1523 is connected to the first pin 1511 and the analog-to-digital conversion circuit 1515 of the control IC151, the fourth connection point 1524 is connected to the second pin 1512 of the control IC151, wherein when the control switch 152 is turned on, the first connection point 1521, the second connection point 1522, the third connection point 1523 and the fourth connection point 1524 are in a conductive connection state; when the control switch 152 is turned off, the third connection point 1523, the fourth connection point 1524, the first connection point 1521 and the second connection point 1522 are in a disconnected state, in other words, the second pin 1512 of the control IC151 connected to the fourth connection point 1524 of the control switch 152 can be used for detecting that the control switch 152 is turned on or off, that is, when the control switch 152 is turned off, the fourth connection point 1524 does not turn on the power module 18, and therefore, the second pin 1512 of the control IC151 is in a low voltage level state; when the control switch 152 is turned on, the fourth connection point 1524 connects the third connection point 1523 and the power module 18, further making the second pin 1512 of the control IC151 be in a high voltage level state, so that the second pin 1512 of the control IC151 can detect and determine that the electronic scale is currently in an on or off state, and the first pin 1511 of the control IC151 can detect whether the electronic scale is connected to the power supply unit 11 according to the high and low voltage level states, the intelligent charging system 1 for electronic scales includes a dual-color indicator lamp 16 connected to the third pin 1513 and the fourth pin 1514 of the control IC151, when the intelligent charging system 1 for electronic scales obtains power from the power supply unit 11, the first pin 1511 of the control IC151 is in a high voltage level, the third pin 1513 of the control IC151 outputs a high voltage level, the dual-color indicator lamp 16 displays red color to indicate that the power module 18 of the electronic scale is currently in a charging state, in addition, according to the calculation result of the internal parameters of the control IC151, if the power of the electronic scale is saturated, the fourth pin 1514 of the control IC151 outputs a high voltage level, the third pin 1513 outputs a low voltage level, the two-color indicator light 16 displays that the battery is fully charged by a green light, the control IC151 is connected to a display device 17 for displaying the power of the power module 18 of the electronic scale, the analog-to-digital conversion circuit 1515 displays the voltage value and the charging current value of the power module 18 on the display device 17 by digital values, when the control switch 152 is turned off and the first pin 1511 of the control IC151 is at the high voltage level, the control IC151 outputs a high voltage level to the third pin 1513, the two-color indicator light 16 displays a red color indicating that the power module 18 of the electronic scale is currently in a charging state, and when the control switch 152 is turned on and the first pin 1511 of the control IC151 is at the high, When the second pin 1512 is at the high voltage level, the control IC151 outputs the high voltage level to the third pin 1513, the two-color indicator light 16 displays red color, which indicates that the power module 18 of the electronic scale is currently in a charging state and the electronic scale enters an on mode, when the control switch 152 is turned on and the first pin 1511 of the control IC151 is at the low voltage level and the second pin 1512 is at the high voltage level, the control IC151 outputs the low voltage level to the third pin 1513 and the fourth pin 1514, the two-color indicator light 16 does not display color, which indicates that the electronic scale is not currently charged by the power supply unit 11 and the electronic scale enters the on mode, in addition, the control IC151 may be further electrically connected to a relay or an optical coupler, which is not shown, for controlling the open circuit and short circuit of the charging current, so as to avoid overcharging the electronic scale, in addition, through the number of use of the power module 18 by the control IC151 and the count of, the parameters of the different power modules 18 can be obtained, and according to the parameters, a better charging scheme can be provided for charging the power modules 18, for example, different charging time plans are performed according to different maximum voltages for charging the new and old power modules 18, and further, the control IC151 can calculate the charging parameters of the power modules 18 according to the calculation of the time required for saturation of charging, so as to solve the problems that the battery is not fully charged and the battery is damaged due to continuous charging.

When in use, the control switch 152 includes a multi-pin switch, wherein the first connection point 1521 is connected to the second connection point 1522, the third connection point 1523 is connected to the first pin 1511 and the analog-to-digital conversion circuit 1515 of the control IC151, and the fourth connection point 1524 is connected to the second pin 1512 of the control IC151, wherein when the control switch 152 is turned on and short-circuited, the first connection point 1521, the second connection point 1522, the third connection point 1523, and the fourth connection point 1524 are in a conductive connection state; when the control switch 152 is turned off, the third connection point 1523, the fourth connection point 1524, the first connection point 1521 and the second connection point 1522 are in a disconnected state, in other words, the second pin 1512 of the control IC151 connected to the fourth connection point 1524 of the control switch 152 can be used for detecting that the control switch 152 is turned on or off, that is, when the control switch 152 is turned off, the fourth connection point 1524 does not turn on the power module 18, and therefore, the second pin 1512 of the control IC151 is in a low voltage level state; when the control switch 152 is turned on, the fourth connection point 1524 connects the third connection point 1523 and the power module 18, further making the second pin 1512 of the control IC151 be in a high voltage level state, so that the second pin 1512 of the control IC151 can detect and determine that the electronic scale is currently in an on or off state, and the first pin 1511 of the control IC151 can detect whether the electronic scale is connected to the power supply unit 11 according to the high and low voltage level states, the intelligent charging system 1 for electronic scales includes a dual-color indicator lamp 16 connected to the third pin 1513 and the fourth pin 1514 of the control IC151, when the intelligent charging system 1 for electronic scales obtains power from the power supply unit 11, the first pin 1511 of the control IC151 is in a high voltage level, the third pin 1513 of the control IC151 outputs a high voltage level, the dual-color indicator lamp 16 displays red color to indicate that the power module 18 of the electronic scale is currently in a charging state, in addition, according to the calculation result of the internal parameters of the control IC151, if the power of the electronic scale is saturated, the fourth pin 1514 of the control IC151 outputs a high voltage level, the third pin 1513 outputs a low voltage level, the bi-color indicator light 16 displays that the battery is fully charged by a green light, the control IC151 is connected to a display device 17 for displaying the power of the power module 18 of the electronic scale, the analog-to-digital conversion circuit 1515 displays the voltage value and the charging current value of the power module 18 on the display device 17 by a digital value, when the control switch 152 is turned off and the first pin 1511 of the control IC151 is at the high voltage level, the control IC151 outputs the high voltage level to the third pin 1513, the bi-color indicator light 16 displays a red color indicating that the power module 18 of the electronic scale is currently in a charging state, when the control switch 152 is turned on and the first pin 1511 of the control IC151 is at the, When the second pin 1512 is at the high voltage level, the control IC151 outputs the high voltage level to the third pin 1513, the two-color indicator light 16 displays red color, which indicates that the power module 18 of the electronic scale is currently in a charging state and the electronic scale enters an on mode, when the control switch 152 is turned on and the first pin 1511 of the control IC151 is at the low voltage level and the second pin 1512 is at the high voltage level, the control IC151 outputs the low voltage level to the third pin 1513 and the fourth pin 1514, the two-color indicator light 16 does not display color, which indicates that the electronic scale is not currently charged by the power supply unit 11 and the electronic scale enters the on mode, in addition, the control IC151 may be further electrically connected to a relay or an optical coupler, which is not shown, for controlling the open circuit and short circuit of the charging current, so as to avoid overcharging the electronic scale, in addition, through the number of use of the power module 18 by the control IC151 and the count of, the parameters of the different power modules 18 can be obtained, and according to the parameters, a better charging scheme can be provided for charging the power modules 18, for example, different charging time plans are performed according to different maximum voltages for charging the new and old power modules 18, and further, the control IC151 can calculate the charging parameters of the power modules 18 according to the calculation of the time required for saturation of charging, so as to solve the problems that the battery is not fully charged and the battery is damaged due to continuous charging.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electronic scale intelligent charging system, contains electronic scale intelligent charging system (1), its characterized in that: the intelligent charging system (1) of the electronic scale comprises a power supply unit (11), a voltage transformation circuit (12), a rectification circuit (13), a first voltage stabilizing circuit (14) and a charging circuit (15), the transformer circuit (12) modulates the voltage output by the power supply unit (11), the rectifier circuit (13) modulates the voltage output by the transformer circuit (12), the first voltage stabilizing circuit (14) is electrically connected with the rectifying circuit (13) to stabilize the voltage output by the rectifying circuit (13), the charging circuit (15) comprises a control IC (151), a first pin (1511), a second pin (1512), a third pin (1513), a fourth pin (1514), an analog-to-digital conversion circuit (1515), a power supply terminal (1516), a control switch (152), a first connection point (1521), a second connection point (1522), a third connection point (1523), a fourth connection point (1524) and a second voltage regulator circuit (153).

2. The intelligent charging system of the electronic scale according to claim 1, characterized in that: the charging circuit (15) is electrically connected with the first voltage stabilizing circuit (14) and the power supply module (18) of the electronic scale, and the charging circuit (15) comprises a control IC (151), a control switch (152) and a second voltage stabilizing circuit (153).

3. The intelligent charging system of the electronic scale according to claim 1, characterized in that: the control IC (151) is provided with an analog-digital conversion circuit (1515), a power supply end (1516) and a plurality of pins, and the control switch (152), the first connection point (1521) and the second connection point (1522) are all connected with the power supply module (18).

4. The intelligent charging system of the electronic scale according to claim 1, characterized in that: the third connection point (1523), the connection control IC (151), the first pin (1511), the analog-to-digital conversion circuit (1515) and the fourth connection point (1524) are all connected with the control IC (151) and the second pin (1512).

5. The intelligent charging system of the electronic scale according to claim 1, characterized in that: the second voltage regulator circuit (153) is connected to the analog-to-digital conversion circuit (1515), the first pin (1511), the power source terminal (1516) and the third connection point (1523).

6. The intelligent charging system of the electronic scale according to claim 1, characterized in that: the charging circuit (15) is electrically connected with a bicolor indicator lamp (16) and a display device (17).