CN219801934U - Lithium battery and multi-path activation circuit thereof - Google Patents
Lithium battery and multi-path activation circuit thereof Download PDFInfo
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- CN219801934U CN219801934U CN202321001751.6U CN202321001751U CN219801934U CN 219801934 U CN219801934 U CN 219801934U CN 202321001751 U CN202321001751 U CN 202321001751U CN 219801934 U CN219801934 U CN 219801934U
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- 230000004913 activation Effects 0.000 title claims abstract description 130
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims abstract description 26
- 230000001960 triggered effect Effects 0.000 abstract description 6
- 230000003213 activating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a lithium battery and a multipath activation circuit thereof. The lithium battery multi-path activation circuit comprises a charging activation circuit, a key activation circuit and a weak current activation circuit; the charging activation circuit comprises a first electronic switch tube, a first resistor, a second resistor and a first capacitor, wherein the second end of the first resistor outputs an activation level signal; the key activation circuit comprises a second electronic switch tube, a third resistor, a fifth resistor and a tact switch, wherein the second end of the fifth resistor is grounded through the tact switch; the weak current activation circuit comprises a third electronic switch tube, a second capacitor and a weak current switch, and the second end of the third electronic switch tube is grounded through the weak current switch. When the charger is connected, the light touch switch and the weak current switch are respectively and independently triggered, voltage drop is formed on the first resistor, so that the level at the second end of the first resistor becomes high, the electric energy output of the lithium battery can be conveniently activated through different triggering modes, and the reliability of the activation of the lithium battery is effectively improved.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery and a multipath activation circuit thereof.
Background
The application field of the activation circuit is very wide, the activation circuit is widely applied to different electronic products, the electronic products can be powered on and powered off in different activation modes, different activation modes can enable users to have different experiences, and a reasonable activation mode becomes a very important subject.
In various industries, a designer usually uses a single activation mode of a key switch to realize on/off of an electronic product, for example, in chinese patent application with application number CN202022815592.6, especially in some lithium batteries, the single activation mode of the key switch can easily cause the loss of the activation function of the product after failure occurs, so that the activation and use stability and reliability of the lithium battery are poor.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a lithium battery and a multi-path activation circuit thereof, which can effectively improve the reliability of activation of the lithium battery.
The aim of the utility model is realized by the following technical scheme:
a lithium battery multi-path activation circuit comprising: a charging activation circuit, a key activation circuit and a weak current activation circuit; the charging activation circuit comprises a first electronic switching tube, a first resistor, a second resistor and a first capacitor, wherein the first end of the first electronic switching tube is used for being connected with the positive electrode of the charger, the first end of the first electronic switching tube is connected with the second end of the first electronic switching tube through the first capacitor, the first end of the first electronic switching tube is also connected with the control end of the first electronic switching tube through the second resistor, the second end of the first electronic switching tube is connected with the first end of the first resistor, and the second end of the first resistor outputs an activation level signal; the key activation circuit comprises a second electronic switch tube, a third resistor, a fifth resistor and a tact switch, wherein the first end of the third resistor is used for being connected with a standby output positive electrode of the lithium battery, the second end of the third resistor is connected with a control end of the second electronic switch tube, the second end of the third resistor is also connected with the first end of the fifth resistor, the second end of the fifth resistor is grounded through the tact switch, the second end of the second electronic switch tube is connected with the first end of the third resistor, and the first end of the second electronic switch tube is connected with the first end of the first resistor; the weak current activation circuit comprises a third electronic switch tube, a second capacitor and a weak current switch, wherein the second end of the fifth resistor is connected with the control end of the third electronic switch tube, the second end of the fifth resistor is also connected with the first end of the third electronic switch tube, the first end of the third electronic switch tube is connected with the second end of the third electronic switch tube through the second capacitor, and the second end of the third electronic switch tube is grounded through the weak current switch.
In one embodiment, at least one of the first resistor and the second resistor is a variable resistor.
In one embodiment, the charging activation circuit further includes a first activation diode, the second end of the first electronic switching tube is connected with the positive electrode of the first activation diode, and the negative electrode of the first activation diode is connected with the control end of the first electronic switching tube.
In one embodiment, the charging activation circuit further includes a second activation diode, and a cathode of the first activation diode is connected to the first end of the first resistor through the second activation diode.
In one embodiment, at least one of the third resistor and the fifth resistor is a variable resistor.
In one embodiment, the key activation circuit further includes a fourth resistor, the control end of the second electronic switch tube is connected to the first end of the fourth resistor, and the second end of the fourth resistor is connected to the second end of the third resistor.
In one embodiment, the fourth resistor is a variable resistor.
In one embodiment, the key activation circuit further includes a third activation diode, and the first end of the second electronic switch tube is connected to the first end of the first resistor through the third activation diode.
In one embodiment, the key activation circuit further includes a fourth activation diode, and the second end of the fifth resistor is connected to the tact switch through the fourth activation diode.
A lithium battery comprising the lithium battery multi-path activation circuit of any of the above embodiments.
Compared with the prior art, the utility model has at least the following advantages:
when the charger is connected, the light touch switch and the weak current switch are respectively and independently triggered, the first resistor is enabled to form voltage drop through current, so that the level at the second end of the first resistor is enabled to be high, the electric energy output of the lithium battery can be conveniently activated through different triggering modes, and the reliability of activating the lithium battery is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a circuit diagram of a multi-path activation circuit for a lithium battery in one embodiment;
FIG. 2 is a circuit diagram of a charge activation circuit in the multi-path activation circuit of the lithium battery shown in FIG. 1;
FIG. 3 is a circuit diagram of a key activation circuit in the multi-way activation circuit of the lithium battery shown in FIG. 1;
fig. 4 is a circuit diagram of a weak current activation circuit in the lithium battery multi-path activation circuit shown in fig. 1.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model relates to a multi-path activation circuit of a lithium battery. In one embodiment, the lithium battery multi-path activation circuit comprises a charging activation circuit, a key activation circuit and a weak current activation circuit; the charging activation circuit comprises a first electronic switching tube, a first resistor, a second resistor and a first capacitor, wherein the first end of the first electronic switching tube is used for being connected with the positive electrode of the charger, the first end of the first electronic switching tube is connected with the second end of the first electronic switching tube through the first capacitor, the first end of the first electronic switching tube is also connected with the control end of the first electronic switching tube through the second resistor, the second end of the first electronic switching tube is connected with the first end of the first resistor, and the second end of the first resistor outputs an activation level signal; the key activation circuit comprises a second electronic switch tube, a third resistor, a fifth resistor and a tact switch, wherein the first end of the third resistor is used for being connected with a standby output positive electrode of the lithium battery, the second end of the third resistor is connected with a control end of the second electronic switch tube, the second end of the third resistor is also connected with the first end of the fifth resistor, the second end of the fifth resistor is grounded through the tact switch, the second end of the second electronic switch tube is connected with the first end of the third resistor, and the first end of the second electronic switch tube is connected with the first end of the first resistor; the weak current activation circuit comprises a third electronic switch tube, a second capacitor and a weak current switch, wherein the second end of the fifth resistor is connected with the control end of the third electronic switch tube, the second end of the fifth resistor is also connected with the first end of the third electronic switch tube, the first end of the third electronic switch tube is connected with the second end of the third electronic switch tube through the second capacitor, and the second end of the third electronic switch tube is grounded through the weak current switch. When the charger is connected, the light touch switch and the weak current switch are respectively and independently triggered, the first resistor is enabled to form voltage drop through current, so that the level at the second end of the first resistor is enabled to be high, the electric energy output of the lithium battery can be conveniently activated through different triggering modes, and the reliability of activating the lithium battery is effectively improved.
Please refer to fig. 1, which is a circuit diagram of a multi-path activation circuit of a lithium battery according to an embodiment of the utility model.
The lithium battery multi-path activation circuit 10 of an embodiment includes a charge activation circuit 100, a key activation circuit 200, and a weak current activation circuit 300. Referring to fig. 2, the charge activating circuit 100 includes a first electronic switch Q1, a first resistor R1, a second resistor R2, and a first capacitor C1. The first end of the first electronic switching tube Q1 is used for being connected with a charger positive electrode C+, and the first end of the first electronic switching tube Q1 is connected with the second end of the first electronic switching tube Q1 through the first capacitor C1. The first end of the first electronic switching tube Q1 is also connected with the control end of the first electronic switching tube Q1 through the second resistor R2, the second end of the first electronic switching tube Q1 is connected with the first end of the first resistor R1, and the second end of the first resistor R1 outputs an activation level signal ATV_TS. Referring to fig. 3, the key activation circuit 200 includes a second electronic switch Q2, a third resistor R3, a fifth resistor R5, and a tact switch BT. The first end of the third resistor R3 is used for being connected with a standby output positive electrode B+ of the lithium battery, and the second end of the third resistor R3 is connected with the control end of the second electronic switching tube Q2. The second end of the third resistor R3 is further connected to the first end of the fifth resistor R5, and the second end of the fifth resistor R5 is grounded through the tact switch BT. The second end of the second electronic switching tube Q2 is connected to the first end of the third resistor R3, and the first end of the second electronic switching tube Q2 is connected to the first end of the first resistor R1. Referring to fig. 4, the weak current activation circuit 300 includes a third electronic switch Q3, a second capacitor C2, and a weak current switch SW. The second end of the fifth resistor R5 is connected to the control end of the third electronic switching tube Q3, and the second end of the fifth resistor R5 is further connected to the first end of the third electronic switching tube Q3. The first end of the third electronic switching tube Q3 is connected with the second end of the third electronic switching tube Q3 through the second capacitor C2, and the second end of the third electronic switching tube Q3 is grounded through the weak current switch SW.
In this embodiment, when the charger is connected, the light-touch switch BT and the weak-current switch SW are triggered separately, the first resistor R1 is all through current, so that a voltage drop is formed on the first resistor R1, so that the level at the second end of the first resistor R1 becomes high, the electric energy output of the lithium battery is conveniently activated by different triggering modes, and the reliability of activating the lithium battery is effectively improved.
In another embodiment, the first electronic switching tube is an NPN triode, the first end of the first electronic switching tube is a collector of the NPN triode, the second end of the first electronic switching tube is an emitter of the NPN triode, the control end of the first electronic switching tube is a base of the NPN triode, and the third electronic switching tube is the same type as the first electronic switching tube; the second electronic switch tube is a PNP type triode, the first end of the second electronic switch tube is a collector electrode of the PNP type triode, the second end of the second electronic switch tube is an emitter electrode of the PNP type triode, and the control end of the second electronic switch tube is a base electrode of the PNP type triode.
In one embodiment, at least one of the first resistor R1 and the second resistor R2 is a variable resistor. In this embodiment, the first resistor R1 is used as a pull-up resistor at the control end of the first electronic switching tube Q1 to increase the on voltage of the first electronic switching tube Q1, so as to facilitate quick response to the on of the first electronic switching tube Q1. The second resistor R2 is used as a bias resistor at the second end of the first electronic switching tube Q1, and the second resistor R2 adjusts the static operating point of the first electronic switching tube Q1, so that the first electronic switching tube Q1 operates more stably. In another embodiment, after the charger is turned on, especially after the first capacitor C1 is full, the resistance of the second resistor R2 is larger than that of the first resistor R1, so that the level at the second end of the first resistor R1 is smaller, i.e. the activation level is too low, to avoid triggering the activation again. In yet another embodiment, when the tact switch BT and the weak current switch SW are turned off, the second electronic switch Q2 is turned off, and the on trigger activation level signal atv_ts of the charger is not affected.
In one embodiment, referring to fig. 2, the charging activation circuit 100 further includes a first activation diode D1, the second end of the first electronic switching tube Q1 is connected to the positive electrode of the first activation diode D1, and the negative electrode of the first activation diode D1 is connected to the control end of the first electronic switching tube Q1. In this embodiment, the first active diode D1 is connected to the first electronic switching tube Q1, specifically, the first active diode D1 is connected in series to the second end of the first electronic switching tube Q1, and the second end of the first electronic switching tube Q1 is connected to the positive electrode of the first active diode D1. In this way, after the charger is disconnected, the electric energy filled in the first capacitor C1 is consumed through the first electronic switching tube Q1, and the first active diode D1 can effectively block the situation that the first capacitor C1 returns again after discharging, so as to ensure that the electric energy in the first capacitor C1 is fully discharged.
Further, referring to fig. 2, the charging activation circuit 100 further includes a second activation diode D2, and the negative electrode of the first activation diode D1 is connected to the first end of the first resistor R1 through the second activation diode D2. In this embodiment, the second active diode D2 is connected to the first resistor R1, specifically, the second active diode D2 is connected in series with the first resistor R1, and the second active diode D2 conducts the current on the first resistor R1 in a unidirectional manner, so that the impact of the high level on the second end of the first resistor R1 on the first electronic switching tube Q1 is avoided, and the normal operation of the first electronic switching tube Q1 is ensured.
In one embodiment, at least one of the third resistor R3 and the fifth resistor R5 is a variable resistor. In this embodiment, the third resistor R3 and the fifth resistor R5 form a voltage dividing circuit, and the voltage on the fifth resistor R5 is used as the opening voltage on the control end of the second electronic switching tube Q2, and by adjusting the resistance values of the third resistor R3 and the fifth resistor R5, that is, adjusting the resistance value ratio of the third resistor R3 to the fifth resistor R5, the opening voltage on the second electronic switching tube Q2 is conveniently adjusted, so that the second electronic switching tube Q2 is conveniently and accurately opened under the specified voltage condition.
In one embodiment, referring to fig. 3, the key activation circuit 200 further includes a fourth resistor R4, the control end of the second electronic switching tube Q2 is connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected to the second end of the third resistor R3. In this embodiment, the fourth resistor R4 is connected to the second electronic switching tube Q2, specifically, the fourth resistor R4 is connected in series to the control end of the second electronic switching tube Q2, and the fourth resistor R4 limits the current on the control end of the second electronic switching tube Q2, so that the condition that the current on the control end of the second electronic switching tube Q2 is too large is avoided, the normal operation of the second electronic switching tube Q2 is ensured, and therefore, the second end of the first resistor R1 timely outputs the activation level signal atv_ts after the tap switch BT is pressed. In another embodiment, the fourth resistor R4 is a variable resistor, so as to adjust the maximum allowable output current at the control terminal of the second electronic switching tube Q2, i.e. to adjust the output safety current at the control terminal of the second electronic switching tube Q2, by adjusting the resistance value of the fourth resistor R4.
In one embodiment, referring to fig. 3, the key activation circuit 200 further includes a third activation diode D3, and the first end of the second electronic switching tube Q2 is connected to the first end of the first resistor R1 through the third activation diode D3. In this embodiment, the third active diode D3 is connected to the second electronic switching tube Q2, specifically, the third active diode D3 is connected in series to the first end of the second electronic switching tube Q2, and the first end of the second electronic switching tube Q2 is connected to the positive electrode of the third active diode D3, so that the current output from the first end of the second electronic switching tube Q2 is conveniently unidirectional guided, so that the impact of the high level on the second end of the first resistor R1 on the second electronic switching tube Q2 is avoided, and the normal operation of the second electronic switching tube Q2 is ensured.
In one embodiment, referring to fig. 3, the key activation circuit 200 further includes a fourth activation diode D4, and the second end of the fifth resistor R5 is connected to the tact switch BT through the fourth activation diode D4. In this embodiment, the fourth active diode D4 is connected to the fifth resistor R5, specifically, the fifth resistor R5, the fourth active diode D4 and the tact switch BT are sequentially connected in series on the same line, and the second end of the fifth resistor R5 is connected to the positive electrode of the fourth active diode D4, so that after the tact switch BT is pressed, the current on the fifth resistor R5 passes through the fourth active diode D4 and the tact switch BT to form a current loop, so that the second electronic switch Q2 is turned on, and the activation level signal atv_ts is triggered conveniently.
In one embodiment, the present utility model provides a lithium battery, including the multi-path activation circuit of a lithium battery according to any one of the above embodiments. In this embodiment, the lithium battery multi-path activation circuit includes a charging activation circuit, a key activation circuit, and a weak current activation circuit; the charging activation circuit comprises a first electronic switching tube, a first resistor, a second resistor and a first capacitor, wherein the first end of the first electronic switching tube is used for being connected with the positive electrode of the charger, the first end of the first electronic switching tube is connected with the second end of the first electronic switching tube through the first capacitor, the first end of the first electronic switching tube is also connected with the control end of the first electronic switching tube through the second resistor, the second end of the first electronic switching tube is connected with the first end of the first resistor, and the second end of the first resistor outputs an activation level signal; the key activation circuit comprises a second electronic switch tube, a third resistor, a fifth resistor and a tact switch, wherein the first end of the third resistor is used for being connected with a standby output positive electrode of the lithium battery, the second end of the third resistor is connected with a control end of the second electronic switch tube, the second end of the third resistor is also connected with the first end of the fifth resistor, the second end of the fifth resistor is grounded through the tact switch, the second end of the second electronic switch tube is connected with the first end of the third resistor, and the first end of the second electronic switch tube is connected with the first end of the first resistor; the weak current activation circuit comprises a third electronic switch tube, a second capacitor and a weak current switch, wherein the second end of the fifth resistor is connected with the control end of the third electronic switch tube, the second end of the fifth resistor is also connected with the first end of the third electronic switch tube, the first end of the third electronic switch tube is connected with the second end of the third electronic switch tube through the second capacitor, and the second end of the third electronic switch tube is grounded through the weak current switch. When the charger is connected, the light touch switch and the weak current switch are respectively and independently triggered, the first resistor is enabled to form voltage drop through current, so that the level at the second end of the first resistor is enabled to be high, the electric energy output of the lithium battery can be conveniently activated through different triggering modes, and the reliability of activating the lithium battery is effectively improved.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A lithium battery multi-path activation circuit, comprising:
the charging activation circuit comprises a first electronic switching tube, a first resistor, a second resistor and a first capacitor, wherein the first end of the first electronic switching tube is used for being connected with the positive electrode of the charger, the first end of the first electronic switching tube is connected with the second end of the first electronic switching tube through the first capacitor, the first end of the first electronic switching tube is also connected with the control end of the first electronic switching tube through the second resistor, the second end of the first electronic switching tube is connected with the first end of the first resistor, and the second end of the first resistor outputs an activation level signal;
the key activation circuit comprises a second electronic switch tube, a third resistor, a fifth resistor and a tact switch, wherein the first end of the third resistor is used for being connected with the standby output positive electrode of the lithium battery, the second end of the third resistor is connected with the control end of the second electronic switch tube, the second end of the third resistor is also connected with the first end of the fifth resistor, the second end of the fifth resistor is grounded through the tact switch, the second end of the second electronic switch tube is connected with the first end of the third resistor, and the first end of the second electronic switch tube is connected with the first end of the first resistor;
the weak current activation circuit comprises a third electronic switch tube, a second capacitor and a weak current switch, wherein the second end of the fifth resistor is connected with the control end of the third electronic switch tube, the second end of the fifth resistor is also connected with the first end of the third electronic switch tube, the first end of the third electronic switch tube is connected with the second end of the third electronic switch tube through the second capacitor, and the second end of the third electronic switch tube is grounded through the weak current switch.
2. The lithium battery multiplexing activation circuit of claim 1, wherein at least one of the first resistor and the second resistor is a variable resistor.
3. The lithium battery multi-path activation circuit of claim 1, wherein the charge activation circuit further comprises a first activation diode, the second end of the first electronic switching tube is connected to the positive electrode of the first activation diode, and the negative electrode of the first activation diode is connected to the control end of the first electronic switching tube.
4. The lithium battery multi-path activation circuit of claim 3, wherein the charge activation circuit further comprises a second activation diode, the negative electrode of the first activation diode being connected to the first end of the first resistor through the second activation diode.
5. The lithium battery multiplexing activation circuit of claim 1, wherein at least one of the third resistor and the fifth resistor is a variable resistor.
6. The multi-way activation circuit of lithium battery of claim 1, wherein the key activation circuit further comprises a fourth resistor, the control terminal of the second electronic switching tube is connected to the first terminal of the fourth resistor, and the second terminal of the fourth resistor is connected to the second terminal of the third resistor.
7. The lithium battery multi-path activation circuit of claim 6, wherein the fourth resistor is a variable resistor.
8. The lithium battery multi-path activation circuit of claim 1, wherein the key activation circuit further comprises a third activation diode, and the first end of the second electronic switching tube is connected to the first end of the first resistor through the third activation diode.
9. The lithium battery multi-path activation circuit of claim 1, wherein the key activation circuit further comprises a fourth activation diode, the second end of the fifth resistor being connected to the tact switch through the fourth activation diode.
10. A lithium battery comprising a lithium battery multiplexing activation circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001751.6U CN219801934U (en) | 2023-04-27 | 2023-04-27 | Lithium battery and multi-path activation circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321001751.6U CN219801934U (en) | 2023-04-27 | 2023-04-27 | Lithium battery and multi-path activation circuit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN219801934U true CN219801934U (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321001751.6U Active CN219801934U (en) | 2023-04-27 | 2023-04-27 | Lithium battery and multi-path activation circuit thereof |
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| Country | Link |
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| CN (1) | CN219801934U (en) |
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2023
- 2023-04-27 CN CN202321001751.6U patent/CN219801934U/en active Active
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