CN214380166U - Lithium battery dust collector protection control circuit - Google Patents
Lithium battery dust collector protection control circuit Download PDFInfo
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- CN214380166U CN214380166U CN202022935366.1U CN202022935366U CN214380166U CN 214380166 U CN214380166 U CN 214380166U CN 202022935366 U CN202022935366 U CN 202022935366U CN 214380166 U CN214380166 U CN 214380166U
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Abstract
The utility model relates to a lithium battery dust catcher protection control circuit, including MCU, lithium cell simulation front end module, power control module, charging control module, discharge control module, group battery and MCU function control module, the output of group battery links to each other with the input of lithium cell simulation front end module, the output of lithium cell simulation front end module links to each other with MCU's input, MCU's input links to each other with charging control module's control end, MCU function control module's control end links to each other with MCU's input, power control module's control end links to each other with lithium cell simulation front end module and MCU's input, discharge control module's control end links to each other with MCU and lithium cell simulation front end module's input. The utility model discloses can reduce the cost of using.
Description
Technical Field
The utility model relates to a lithium battery dust collector protection control circuit especially relates to a lithium battery dust collector protection control circuit based on ESB1246 NG.
Background
Because the cordless dust collector is used as a household cleaning tool, the cordless dust collector wins a wide market due to the characteristic of convenient operation, and the cordless dust collector is about to become one of the necessary sanitary appliances for families.
At present, most of the existing lithium battery analog front end, MCU and LDO are used in a combined mode, LDO chips are indispensable, the price of part of the lithium battery analog front end is high, the overall cost of the scheme is high, and the market competitiveness of the product is poor under the condition that the market is so intense.
In view of the above-mentioned defects, the present designer actively makes research and innovation to create a protection control circuit for lithium battery dust collector with a novel structure, so that the protection control circuit has more industrial utilization value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a lithium battery dust catcher protection control circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a lithium battery dust catcher protection control circuit, includes MCU, lithium cell simulation front end module, power control module, the control module that charges, the control module that discharges, group battery and MCU function control module, the output of group battery links to each other with the input of lithium cell simulation front end module, the output of lithium cell simulation front end module links to each other with MCU's input, MCU's input links to each other with the control terminal of the control module that charges, MCU function control module's control terminal links to each other with MCU's input, power control module's control terminal links to each other with lithium cell simulation front end module and MCU's input, the control terminal of the control module that discharges links to each other with MCU and lithium cell simulation front end module's input.
Preferably, in the lithium battery dust collector protection control circuit, the lithium battery analog front end module adopts a chip with the model number of ESB1246NG, and the input end of the chip is connected in parallel with the input end of each battery.
Preferably, in the protection control circuit for a lithium battery dust collector, the model of the MCU is MS51 ECOAE.
Preferably, the lithium battery dust collector protection control circuit comprises a power supply control module, a lithium battery simulation front-end module and a lithium battery simulation front-end module, wherein the power supply control module comprises a charging activation module and a key activation module, the output ends of the charging activation module and the key activation module are connected with the input end of the lithium battery simulation front-end module, and the charging activation module and the key activation module are independent modules.
Preferably, a lithium battery dust catcher protection control circuit, the control module that charges includes the charger, the positive pole of charger links to each other through the one end of the MOS module that charges with the group battery, the output of the MOS module that charges links to each other with the input of lithium cell simulation front end module, the negative pole of charger links to each other with the other end of group battery, the output of charger links to each other with charger voltage detection module's input, charger voltage detection module's output links to each other with MCU's input.
Preferably, a lithium battery dust catcher protection control circuit, the discharge control module includes first discharge MOS module and second discharge MOS module, the group battery links to each other with main motor through first discharge MOS module, the output of first discharge MOS module links to each other with the input of lithium cell simulation front end module, the group battery links to each other with vice motor through the second discharge MOS module, the output of second discharge MOS module links to each other with MCU's input.
Preferably, the lithium battery dust collector protection control circuit, MCU function control module is including keeping off position LED, electric quantity LED, speed governing button and speed governing signal, and they all link to each other with MCU, and they all are independent control module.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
the utility model discloses lithium battery dust catcher based on ESB1246NG has practiced thrift the LDO module than other schemes, all obtains practicing thrift in space and cost, and the ESB1246NG chip is with low costs in addition, can effectively reduce cost by a wide margin.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic circuit connection diagram of the lithium battery analog front end module of the present invention;
fig. 3 is a schematic circuit connection diagram of the power control module of the present invention;
fig. 4 is a schematic circuit connection diagram of the charging control module of the present invention;
fig. 5 is a schematic circuit connection diagram of the discharge control module of the present invention;
FIG. 6 is a schematic diagram of the circuit connection of the MCU function control module of the present invention;
fig. 7 is a diagram of practical application of the lithium battery analog front-end module of the present invention;
fig. 8 is an application diagram of the MCU1 of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Examples
As shown in fig. 1, a lithium battery dust collector protection control circuit, including MCU1, lithium battery simulation front end module 2, power control module 3, charge control module 4, discharge control module 5, group battery 6 and MCU function control module 7, the output of group battery 6 links to each other with lithium battery simulation front end module 2's input, lithium battery simulation front end module 2's output links to each other with MCU 1's input, MCU 1's input links to each other with charge control module 4's control end, MCU function control module 7's control end links to each other with MCU 1's input, power control module 3's control end links to each other with lithium battery simulation front end module 2 and MCU 1's input, discharge control module 5's control end links to each other with MCU1 and lithium battery simulation front end module 2's input.
As shown in fig. 2 and 7, the analog front-end module 2 of the lithium battery adopts a chip with an ESB1246NG model, and an input end of the chip is connected in parallel with an input end of each battery, in that the battery voltage is detected in real time through the ESB1246NG, and is communicated with the MCU through the I2C, the MCU sends different value commands, and the ESB1246NG transmits corresponding command information through VOUT.
As shown in FIG. 8, the MCU1 is MS51 ECOAE.
As shown in fig. 3, the power control module 3 includes a charging activation module 31 and a key activation module 32, output ends of the charging activation module 31 and the key activation module 32 are connected to an input end of the lithium battery analog front end module 2, wherein the charging activation module 31 and the key activation module 32 are independent modules, and are in an ultra-low power consumption mode of power-off in a normal state, when a charger is inserted or a start button is pressed, a power control circuit is turned on, and an LDO output inside the ESB1246NG activates an MCU, so that the entire system is activated.
As shown in fig. 4, the charging control module 4 includes a charger 41, a positive electrode of the charger 41 is connected to one end of the battery pack 6 through a charging MOS module 42, an output end of the charging MOS module 42 is connected to an input end of the lithium battery analog front end module 2, a negative electrode of the charger 41 is connected to the other end of the battery pack 6, an output end of the charger 41 is connected to an input end of a charger voltage detection module 43, and an output end of the charger voltage detection module 43 is connected to an input end of the MCU 1.
The charging control module has functions of charger voltage detection, overcharge, high and low temperature charging and charging overcurrent protection, only the charger voltage can be charged within an allowable range, abnormal or unmatched charger insertion damage to a lithium battery protection system is prevented, and when the battery voltage is detected to trigger an overcharge threshold, the charging temperature is abnormal, and the charging current is too large, the charging MOS is closed, and charging is stopped.
As shown in fig. 5, the discharge control module 5 includes a first discharge MOS module 51 and a second discharge MOS module 52, the battery pack 6 is connected to the main motor through the first discharge MOS module 51, an output end of the first discharge MOS module 51 is connected to an input end of the lithium battery analog front end module 2, the battery pack 6 is connected to the sub-motor through the second discharge MOS module 52, and an output end of the second discharge MOS module 52 is connected to an input end of the MCU 1.
The discharge control module 5 has the independent and separate control characteristics of a main motor and an auxiliary motor, and has the functions of motor overcurrent, short circuit, battery over-temperature and battery under-voltage protection. When any protection triggers a threshold value, the MOS of the main motor or the auxiliary motor is closed, and the discharge is cut off.
As shown in fig. 6, the MCU function control module 7 includes a gear LED71, a power LED72, a speed regulating button 73 and a speed regulating signal 74, which are all connected to the MCU1 and are independent control modules.
MCU functional control module 7 has electric quantity LED and shows and brushless fender position speed governing function, and when the battery discharged or charged, LED can show different electric quantities according to battery voltage to make things convenient for the customer to know the electric quantity state of machine in real time. When pressing speed governing button, MCU can export speed governing signal to brushless controller, keeps off a position LED simultaneously and can show the fender position LED that corresponds, has better use experience for the customer.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a lithium battery dust catcher protection control circuit which characterized in that: comprises an MCU (1), a lithium battery simulation front end module (2), a power supply control module (3), a charging control module (4), a discharging control module (5), a battery pack (6) and an MCU function control module (7), the output end of the battery pack (6) is connected with the input end of the lithium battery analog front-end module (2), the output end of the lithium battery analog front-end module (2) is connected with the input end of the MCU (1), the input end of the MCU (1) is connected with the control end of the charging control module (4), the control end of the MCU function control module (7) is connected with the input end of the MCU (1), the control end of the power supply control module (3) is connected with the input ends of the lithium battery analog front end module (2) and the MCU (1), and the control end of the discharge control module (5) is connected with the input ends of the MCU (1) and the lithium battery simulation front-end module (2).
2. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the lithium battery simulation front-end module (2) adopts a chip with the model number of ESB1246NG, and the input end of the chip is connected with the input end of each battery in parallel.
3. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the model of the MCU (1) is MS51 ECOAE.
4. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the power supply control module (3) comprises a charging activation module (31) and a key activation module (32), the output ends of the charging activation module (31) and the key activation module (32) are connected with the input end of the lithium battery analog front-end module (2), and the charging activation module (31) and the key activation module (32) are independent modules.
5. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the charging control module (4) comprises a charger (41), the positive electrode of the charger (41) is connected with one end of the battery pack (6) through a charging MOS module (42), the output end of the charging MOS module (42) is connected with the input end of the lithium battery simulation front-end module (2), the negative electrode of the charger (41) is connected with the other end of the battery pack (6), the output end of the charger (41) is connected with the input end of a charger voltage detection module (43), and the output end of the charger voltage detection module (43) is connected with the input end of the MCU (1).
6. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the discharge control module (5) comprises a first discharge MOS module (51) and a second discharge MOS module (52), the battery pack (6) is connected with a main motor through the first discharge MOS module (51), the output end of the first discharge MOS module (51) is connected with the input end of the lithium battery simulation front-end module (2), the battery pack (6) is connected with an auxiliary motor through the second discharge MOS module (52), and the output end of the second discharge MOS module (52) is connected with the input end of the MCU (1).
7. The protection control circuit of the lithium battery dust collector as claimed in claim 1, wherein: the MCU function control module (7) comprises a gear LED (71), an electric quantity LED (72), a speed regulation button (73) and a speed regulation signal (74), which are all connected with the MCU (1) and are independent control modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022935366.1U CN214380166U (en) | 2020-12-10 | 2020-12-10 | Lithium battery dust collector protection control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022935366.1U CN214380166U (en) | 2020-12-10 | 2020-12-10 | Lithium battery dust collector protection control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380166U true CN214380166U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022935366.1U Active CN214380166U (en) | 2020-12-10 | 2020-12-10 | Lithium battery dust collector protection control circuit |
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|---|---|
| CN (1) | CN214380166U (en) |
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- 2020-12-10 CN CN202022935366.1U patent/CN214380166U/en active Active
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