CN212303713U - Battery pack with self-discharging function and electric tool - Google Patents
Battery pack with self-discharging function and electric tool Download PDFInfo
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- CN212303713U CN212303713U CN202021285610.8U CN202021285610U CN212303713U CN 212303713 U CN212303713 U CN 212303713U CN 202021285610 U CN202021285610 U CN 202021285610U CN 212303713 U CN212303713 U CN 212303713U
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Abstract
The utility model relates to a battery package with from discharge function, electric tool, wherein, the battery package includes the battery box, from discharge unit and battery cover, from discharge unit includes from the discharge switch, from discharge switch is used for controlling whether the self discharge unit carries out the work of discharging, be equipped with electric core in the battery case, the positive terminal of electric core links to each other with the one end from discharge unit, the negative pole end of electric core links to each other with the other end from discharge unit through the battery cover, the battery case is in the off-state from discharge switch when pegging graft there is the battery cover in order forbidding the self discharge unit to carry out the work of discharging, and when the battery case is extracted from electric tool and the battery cover is not pegged graft, from discharge switch closure so that the self discharge unit carries. The battery pack self-discharging device has the beneficial effects that when the battery pack is discarded, the battery cell in the battery pack can be self-discharged, so that the safety accident caused by the fact that the electric quantity of the discarded battery cell is sufficient is avoided.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery package and an electric tool with from discharge function.
Background
The battery has the characteristics of stable voltage, stable current, stable power supply for a long time, stable and reliable performance and the like, and is widely applied to modern social life. The anastomat is a device which can replace the traditional manual suture and is used in medicine, and due to the development of modern science and technology and the improvement of manufacturing technology, the anastomat used clinically has reliable quality and convenient use, and particularly has the advantages of high suture speed, simple and convenient operation, little side effect, little operation complication and the like. Generally, the stapler is a disposable device to avoid cross infection, and must be powered by a battery with full capacity to avoid suture interruption and even unexpected accidents due to insufficient capacity. Therefore, in such power tools, the battery is a disposable product.
When the battery is used as a disposable product, most of the used batteries have a residual capacity, for example, 50%, or even more than 70%. After the batteries are used, the batteries are usually selected to be directly discarded, but because the electric quantity in the batteries is enough, when the positive electrode and the negative electrode of the batteries are connected by a conductive substance, a closed loop is formed, and the risk of accidental fire is caused.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a battery pack and an electric tool with self-discharge function, which solves the technical problem that when the electric quantity in the discarded battery is sufficient, the risk of accidental fire may be caused.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
in a first aspect, the embodiment of the utility model provides a battery pack with from discharge function, including the battery case, from discharge unit and battery cover, from discharge unit including from the discharge switch, from discharge switch is used for controlling whether the work of discharging from discharge unit, be equipped with electric core in the battery case, the positive terminal of electric core links to each other with the one end from discharge unit, the negative pole end of electric core links to each other with the other end from discharge unit through the battery cover, from discharge switch is in the off-state when the battery case pegs graft and has the battery cover in order to forbid from discharge unit to carry out the work of discharging, and when the battery case extracts from electric tool and does not peg graft the battery cover, from discharge switch closure so that the work of discharging from discharge unit.
The embodiment of the utility model provides a battery pack with from discharge function, including the battery case, from discharge unit and battery cover, from discharge unit further including being used for controlling whether the self discharge switch of the work of discharging carries out from discharge unit, be equipped with electric core in the battery case, the positive terminal of electric core links to each other with the one end from discharge unit, the negative pole end of electric core passes through the battery cover and links to each other with the other end from discharge unit, when the battery case is pegged graft there is the battery cover, be in off-state from discharge switch, in order to forbid from discharge unit to carry out the work of discharging, and when the battery case extracts from electric tool and does not peg graft the battery cover, from discharge switch closure, in order to make from discharge unit to. From this, through setting up from discharge unit, battery case and battery cover to whether peg graft through battery case and battery cover controls whether the disconnection from discharge switch, and then whether control is from discharge unit and is carried out from discharge work, in order to reach when the battery package is no longer used promptly and is abandoned, can carry out the purpose of discharging to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, thereby effectively avoid arousing the incident emergence because of the electric quantity of the electric core of abandoning is sufficient.
Optionally, the self-discharge switch is a normally closed relay, the self-discharge unit further includes a self-discharge resistor, wherein one end of the normally closed switch in the normally closed relay is connected to the positive terminal of the battery cell, the other end of the normally closed switch in the normally closed relay is connected to the negative terminal of the battery cell through the self-discharge resistor, one end of a coil in the normally closed relay is connected to the positive terminal of the battery cell, the other end of the coil in the normally closed relay is connected to a discharge pin in the battery cover, and the discharge pin in the battery cover is connected to the negative terminal of the battery cell after being connected to the negative terminal of the battery cell. Therefore, the self-discharge function of the battery pack can be realized through a circuit formed by the normally closed relay and the self-discharge resistor, and the circuit is simple in structure and high in reliability.
Optionally, the battery pack with the self-discharge function further comprises an output control unit, one end of the output control unit is connected with the positive end of the battery core, and the other end of the output control unit is connected with the battery cover, wherein the output control unit is in a closed state when the battery box is unplugged from the battery cover and is plugged into the electric tool, so that the battery box supplies power to the electric tool. Therefore, the output control unit is arranged in the battery pack, and when the battery pack is used, the output control unit is in a closed state, so that the purpose of supplying power to the electric tool is achieved.
Optionally, the output control unit comprises a normally open relay, one end of a normally open switch in the normally open relay is connected with the positive end of the battery cell, the other end of the normally open switch in the normally open relay is connected with the positive pin in the battery cover, one end of a coil in the normally open relay is connected with the positive end of the battery cell, and the other end of the coil in the normally open relay is connected with the output control pin in the battery cover. Therefore, a power supply loop can be formed through the normally open relay so as to realize the power supply function of the battery pack, and the circuit structure is simple and the reliability is high.
Optionally, the self-discharge unit and the output control unit are both disposed in a battery box, the battery box is provided with a positive terminal, an output control terminal, a discharge terminal and a negative terminal, the positive terminal is used for connecting a positive pin in the battery cover, the output control terminal is used for connecting an output control pin in the battery cover, the discharge terminal is used for connecting a discharge pin in the battery cover, and the negative terminal is used for connecting a negative pin in the battery cover. From this, through set up corresponding binding post on the battery case to realize the battery package inside and the outside between the electricity be connected, and then be convenient for realize the self discharge function and the power supply function etc. of battery package.
Optionally, when the battery box is unplugged from the battery cover and plugged into the electric tool, the positive terminal is connected to the positive power supply end of the main board in the electric tool, and the output control terminal, the discharging terminal and the negative terminal are all connected to the negative power supply end of the main board in the electric tool. Therefore, when the battery pack is used, the power supply function of the battery pack can be realized by electrically connecting the wiring terminals on the battery box, and the operation is simple and convenient.
Optionally, the battery pack is further provided with a data terminal and a clock terminal, the data terminal is connected with a data pin in the battery cover, and the clock terminal is connected with a clock pin in the battery cover. From this, through setting up data terminal and clock terminal etc to realize the inside and outside data transmission of battery package, and then be convenient for realize the monitoring function of battery package etc..
In a second aspect, an embodiment of the present invention provides an electric tool, including: the battery pack with the self-discharge function; the battery installation bin is used for installing a battery box in the battery pack.
The embodiment of the utility model provides an electric tool, through setting up the self-discharge unit, battery case and battery cover, and whether peg graft through battery case and battery cover controls the disconnection from the discharge switch or not, and then whether control is carried out the self-discharge work from the discharge unit, when reaching that the battery package is no longer used promptly and is abandoned, can carry out the purpose of discharging to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, thereby effectively avoid arousing the incident because of the electric quantity of the electric core of abandoning is sufficient and take place.
Optionally, the battery mounting compartment is provided on a handle of the power tool. Therefore, the novel LED lamp is attractive in design, striking in position and convenient to disassemble and assemble by a user.
Optionally, the power tool is a powered stapler.
(III) advantageous effects
The utility model has the advantages that: the utility model discloses a battery package with from discharge function, electric tool, whether owing to adopt pegging graft of battery cover and battery case to control the disconnection from the discharge switch or not, and then whether control is from the discharge unit work of discharging, for prior art, it can be when the battery package is no longer used and is abandoned, discharge to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, reached and effectively avoided because of electric core electric quantity is sufficient, the purpose that the condition that probably arouses the unexpected risk of catching fire takes place.
Drawings
Fig. 1-6 are schematic structural diagrams of a battery pack with a self-discharge function according to an embodiment of the present invention.
[ description of reference ]
110: a battery case;
120: a self-discharge cell; 121: a self-discharge switch;
130: a battery cover;
140: an electric core;
150: an output control unit;
210: a main board in the electric tool;
p0 +: a positive terminal; SD 0: an output control terminal; TH 0: a discharge terminal; p0-: a negative terminal;
p +: a positive electrode pin; SD: an output control pin; TH: a discharge pin; p-: a negative electrode pin;
p1 +: a positive power supply terminal; p1-: a negative supply terminal.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
The embodiment of the utility model provides a battery package with from discharge function, electric tool, including the battery case, from discharge unit and battery cover, from discharge unit including being used for controlling whether the self discharge switch of the work of discharging is carried out from discharge unit, be equipped with electric core in the battery case, the positive terminal of electric core links to each other with the one end from discharge unit, the negative pole end of electric core passes through the battery cover and links to each other with the other end from discharge unit, when the battery case is pegged graft there is the battery cover, from discharge switch is in off-state, in order to forbid from discharge unit to carry out the work of discharging, and when the battery case was extracted from electric tool and the battery cover of not pegging graft, from discharge switch closure, in order to make. From this, whether control whether from the disconnection of discharge switch through pegging graft of battery case and battery cover, and then whether control is from the work of discharging of discharge unit, in order to reach when the battery package is no longer used promptly is abandoned, can carry out the purpose of discharging to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, thereby effectively solved when the electric quantity in the battery package of abandoning is sufficient, probably arouse the technical problem of unexpected risk of catching fire, guaranteed the security of abandoning the battery package.
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 is a schematic structural diagram of a battery pack with a self-discharge function according to an embodiment of the present invention, referring to fig. 1, the battery pack with a self-discharge function includes: a battery case 110, a self-discharge unit 120, and a battery cover 130. The self-discharge unit 120 includes a self-discharge switch 121, and the self-discharge switch 121 is used to control whether the self-discharge unit 120 performs a discharge operation. A battery cell 140 is disposed in the battery case 110, a positive terminal of the battery cell 140 is connected to one end of the self-discharge unit 120, and a negative terminal of the battery cell 140 is connected to the other end of the self-discharge unit 120 through a battery cover 130. The self-discharge switch 121 is in an open state to prohibit the self-discharge unit 120 from performing the discharge operation when the battery cover 130 is inserted into the battery case 110, and the self-discharge switch 121 is closed to perform the discharge operation of the self-discharge unit 120 when the battery case 110 is removed from the electric power tool without inserting the battery cover 130.
Specifically, as shown in fig. 1, the battery pack may include a battery cell 140, a self-discharge unit 120, a battery case 110, and a battery cover 130. The battery cell 140 may be a single battery, or a plurality of single batteries connected in series, in parallel, or in series and parallel, and the single battery may be a lead-acid battery or a lithium battery. The self-discharge unit 120 includes a self-discharge switch 121, where the self-discharge switch 121 is mainly used to control whether the self-discharge unit 120 performs a discharge operation, for example, when the self-discharge switch 121 is in an off state, the self-discharge unit 120 is prohibited from discharging the battery cell 140; when the self-discharge switch 121 is in a closed state, the battery cell 140 is discharged through the self-discharge unit 120, so that the electric quantity of the battery cell 140 is reduced to a safe electric quantity range, for example, a range close to zero.
The battery case 110 is configured to mate with the battery cover 130, wherein the battery case 110 is mainly used for placing the battery core 140, the self-discharge unit 120, other components, and the like, so as to protect the battery core 140, the self-discharge unit 120, other components, and the like. The battery cover 130 is detachably disposed on the battery box 110, for example, disposed on the battery box 110 in a plugging manner, and is mainly used for plugging the battery cover onto the battery box 110 when the battery pack is not used, so as to enable the self-discharge switch 121 to be in an off state, and at this time, the self-discharge unit 120 is prohibited from discharging electricity to the battery cell 140, so as to ensure the safety and the sufficient electricity quantity when the battery pack is not used; and after the battery pack is used and needs to be discarded, the battery pack is not inserted into the battery box 110 any more, so that the self-discharge switch 121 is in a closed state, and at this time, the self-discharge unit 120 discharges the battery cell 140, so that the electric quantity of the battery cell 140 is reduced to a safe electric quantity range, and a safety accident caused by the fact that the electric quantity of the discarded battery pack is sufficient is avoided.
For example, when the battery pack is shipped, the battery cover 130 is inserted into the battery box 110, so that the self-discharge switch 121 is in an off state, and at this time, the self-discharge unit 120 does not perform a discharge operation, that is, does not discharge the battery core 140; when the battery pack is used, the battery box 110 may be installed in a power tool (e.g., a stapler) so that the battery cell 140 supplies power to the power tool; after the battery pack is used and needs to be discarded, the battery case 110 is pulled out from the electric tool, and the battery cover 130 is not plugged on the battery case 110 any more, so that the self-discharge switch 121 is in a closed state, and at this time, the self-discharge unit 120 performs a discharge operation to discharge the battery core 140.
In this embodiment, through setting up from discharge unit, battery case and battery cover to whether through the grafting of battery case and battery cover whether control from the disconnection of discharge switch, and then control whether the self discharge unit carries out the work of discharging certainly, when reaching that the battery package is no longer used promptly and is abandoned, can carry out the purpose of discharging to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, thereby effectively avoid arousing the incident because of the electric quantity of the battery package of abandoning is sufficient and takes place.
Optionally, in an embodiment, referring to fig. 2, the self-discharge switch 121 is a normally closed relay J1, and the self-discharge unit 120 further includes a self-discharge resistor R. One end of a normally closed switch in the normally closed relay J1 is connected with the positive end of the battery cell 140, the other end of the normally closed switch in the normally closed relay J1 is connected with the negative end of the battery cell 140 through a self-discharge resistor R, one end of a coil in the normally closed relay J1 is connected with the positive end of the battery cell 140, the other end of the coil in the normally closed relay J1 is connected with a discharge pin TH in the battery cover 130, and the discharge pin TH in the battery cover 130 is connected with a negative pin P-in the battery cover 130 and then connected with the negative end of the battery cell 140.
That is, the self-discharge unit 120 may be composed of a normally closed relay J1 and a self-discharge resistor R, wherein the positive terminal of the battery cell 140 is connected to one end of the coil in the normally closed relay J1 and one end of the normally closed switch in the normally closed relay J1, respectively, the other end of the normally closed switch in the normally closed relay J1 is connected to the negative terminal of the battery cell 140 through the self-discharge resistor R, and when the battery cover 130 is plugged into the battery case 110, the other end of the coil in the normally closed relay J1 and the negative terminal of the battery cell 140 are correspondingly connected to a pin in the battery cover 130, so that the normally closed relay J1 is controlled to be turned on and off under the action of the battery cover 130 to determine whether the battery cell 140 is discharged through the self-discharge resistor. The self-discharge resistor R may be a resistor, or may be formed by connecting a plurality of resistors in series, and the electric quantity of the battery cell 140 is consumed by the self-discharge resistor R, so as to achieve the purpose of discharging the battery cell 140, and the resistance value of the self-discharge resistor R may be set according to the discharge time, which is not limited herein.
Specifically, referring to fig. 2, the battery cover 130 includes a discharge pin TH and a negative pin P-, and the discharge pin TH is in communication with the negative pin P- (e.g., via a metal wire). When the battery cover 130 is plugged on the battery box 110, the other end of the coil in the normally closed relay J1 is communicated with a discharge pin TH in the battery cover 130, the negative end of the battery cell 140 is communicated with a negative pin P-in the battery cover 130, and meanwhile, as the discharge pin TH is communicated with the negative pin P-, the battery cell 140, the coil in the normally closed relay J1, the discharge pin TH in the battery cover 130 and the negative pin P-in the battery cover 130 form a closed loop, the coil in the normally closed relay J1 is energized, the normally closed switch in the normally closed relay J1 is turned off, and at the moment, the self-discharge resistor R is prevented from discharging the battery cell 140; when the battery cover 130 is not plugged on the battery box 110, the other end of the coil in the normally closed relay J1 and the negative end of the battery cell 140 are in a disconnected state, the coil in the normally closed relay J1 is not electrified, the normally closed switch in the normally closed relay J1 is in a closed state, at this time, the battery cell 140, the normally closed switch in the normally closed relay J1 and the self-discharge resistor R form a closed loop, the battery cell 140 discharges through the self-discharge resistor R, and therefore when the battery pack is not used any more, namely discarded, self-discharge can be achieved, and safety accidents caused by the fact that the electric quantity of the discarded battery pack is sufficient are avoided.
In the embodiment, the self-discharge loop is formed by the normally closed relay and the self-discharge resistor, so that the self-discharge function of the battery pack is realized, and the circuit is simple in structure and high in reliability. Of course, the self-discharge unit may also adopt other circuit structures, and is not limited herein.
Optionally, in an embodiment, referring to fig. 3, the battery pack with a self-discharge function further includes an output control unit 150, one end of the output control unit 150 is connected to the positive terminal of the battery cell 140, and the other end of the output control unit 150 is connected to the battery cover 130, wherein the output control unit 150 is in a closed state when the battery case 110 is unplugged from the battery cover 130 and is plugged into the electric power tool, so that the battery case 110 supplies power to the electric power tool.
That is, the output control unit 150 may be disposed in the battery box 110, and when the battery pack is used, the battery cover 130 on the battery box 110 is pulled out and mounted on the electric tool, for example, plugged into a battery mounting compartment of the electric tool (e.g., a stapler), and at this time, the output control unit 150 is in a closed state, and the battery cell 140 starts to supply power to the electric tool.
Specifically, referring to fig. 3, the battery pack may include a battery cell 140, a self-discharge unit 120, an output control unit 150, a battery case 110, and a battery cover 130, wherein the battery cell 140, the self-discharge unit 120, and the output control unit 150 are disposed in the battery case 110, and the battery cover 130 is detachably disposed on the battery case 110 and is internally provided with a connection line. When the battery pack leaves a factory, the battery cover 130 is inserted into the battery box 110, so that the self-discharge switch 121 is in an off state, and at this time, the self-discharge unit 120 does not perform discharge work, that is, does not perform discharge on the battery cell 140; when the battery pack is used, the battery cover 130 on the battery box 110 is pulled out and inserted into the electric tool, and at this time, the output control unit 150 is in a closed state, and the battery core 140 supplies power to the electric tool; after the battery pack is used and needs to be discarded, the battery box 110 is pulled out from the electric tool and the battery cover 130 is not plugged on the battery box 110 any more, so that the self-discharge switch 121 is in a closed state, and at this time, the self-discharge unit 120 performs a discharge operation to discharge the battery core 140.
In this embodiment, through setting up from discharge unit, output control unit, battery case and battery cover, not only can be when the battery package is not used, through pegging graft the battery cover on the battery case, in order to protect the battery package, and can be when the battery package is used, through pegging graft the battery case in electric tool, in order to supply power to electric tool, and can be when the battery package is abandoned, through extracting the battery case from electric tool and no longer pegging graft the battery cover, in order to discharge electric core, when in order to avoid the battery package to be abandoned, arouse the incident because of electric core electric quantity is sufficient and take place.
Alternatively, in one embodiment, referring to fig. 4, the output control unit 150 includes a normally open relay J2, one end of a normally open switch in the normally open relay J2 is connected to the positive terminal of the battery cell 140, the other end of the normally open switch in the normally open relay J2 is connected to the positive terminal pin P + in the battery cover 130, one end of a coil in the normally open relay J2 is connected to the positive terminal of the battery cell 140, and the other end of the coil in the normally open relay J2 is connected to the output control pin SD in the battery cover 130.
That is, the output control unit 150 may be configured by the normally open relay J2, wherein the positive terminal of the battery cell 140 is connected to one end of the coil in the normally open relay J2 and one end of the normally open switch in the normally open relay J2, respectively, and when the battery box 110 is plugged into the electric power tool, through the corresponding connection line in the electric power tool, the coil in the normally open relay J2 is powered, the normally open switch in the normally open relay J2 is in a closed state, and then the battery cell 140 supplies power to the electric power tool.
In this embodiment, form power supply loop through normally opening the relay to realize the power supply function of battery package, and circuit structure is simple, the reliability is high. Meanwhile, when the battery cover is inserted in the battery box, the other end of the coil in the normally open relay and the other end of the normally open switch in the normally open relay are protected through the battery cover, so that the safety of the battery pack when the battery pack is not used is guaranteed. Of course, the output control unit may also adopt other circuit structures, and is not limited herein.
Alternatively, as shown in fig. 4, the self-discharge unit 120 and the output control unit 150 are both disposed in the battery box 110, the battery box 110 is respectively provided with a positive terminal P0+, an output control terminal SD0, a discharge terminal TH0 and a negative terminal P0-, the positive terminal P0+ is used for connecting a positive pin P + in the battery cover 130, the output control terminal SD0 is used for connecting an output control pin SD in the battery cover 130, the discharge terminal TH0 is used for connecting a discharge pin TH in the battery cover 130, and the negative terminal P0-is used for connecting a negative pin P-in the battery cover 130. From this, through set up corresponding binding post on the battery case to realize the battery package inside and the outside between the electricity be connected, and then be convenient for realize the self discharge function and the power supply function etc. of battery package.
Further, referring to fig. 5, when the battery case 110 is unplugged from the battery cover 130 and is inserted into the power tool, the positive terminal P0+ is connected to the positive power supply terminal P1+ of the main board 210 in the power tool, and the output control terminal SD0, the discharge terminal TH0, and the negative terminal P0-are all connected to the negative power supply terminal P1-of the main board 210 in the power tool.
Specifically, when the battery pack is used, the battery cover 130 on the battery box 110 can be pulled out and inserted into the battery mounting compartment of the electric tool, and at this time, the positive terminal P0+ on the battery box 110 is communicated with the positive power supply terminal P1+ of the main board 210 in the electric tool, and the output control terminal SD0, the discharge terminal TH0 and the negative terminal P0 are communicated with the negative power supply terminal P1-of the main board 210 in the electric tool through the connecting line on the main board 210 in the electric tool. At this moment, the coil in the normally closed relay J1 gets electricity, and the normally closed switch among the normally closed relay J1 breaks off, forbids from discharging resistance R to discharge to electric core 140, and the coil in the normally open relay J2 simultaneously gets electricity, and the normally open switch among the normally open relay J2 is in the closure state, and electric core 140 supplies power for electric tool.
In this embodiment, when the battery package is used, can realize the power supply function of battery package through the binding post of electricity on the connection battery case, easy operation, convenience.
Optionally, in one embodiment, the battery pack 110 further has a data terminal and a clock terminal (both not specifically shown), the data terminal is connected to a data pin (not specifically shown) in the battery cover 130, and the clock terminal is connected to a clock pin (not specifically shown) in the battery cover 130. Through setting up data terminal and clock terminal to realize the inside and outside data transmission of battery package, and then be convenient for realize the monitoring function of battery package.
For example, a battery management unit is disposed in the battery box 110, a data output end of the battery management unit is connected to a data terminal on the battery box 110, a clock signal end is connected to a clock terminal on the battery box 110, and when the battery pack is used, the battery cover 130 on the battery box 110 is pulled out and inserted into the electric tool, the data terminal on the battery box 110 is communicated with a data acquisition end of the main board 210 in the electric tool, the clock terminal on the battery box 110 is communicated with the clock signal end of the main board 210 in the electric tool, and the battery management unit sends related information of the battery pack, such as electric quantity information of a battery cell, voltage information and the like, to the electric tool through the data terminal of the battery box 110, and performs synchronization through the clock terminal to realize synchronous transmission of signals, prevent data loss and the like, and further realize effective monitoring of the battery. Therefore, whether the battery pack is in a normal working state or not can be determined according to the electric quantity, the voltage and the like of the battery pack, whether the actual requirement is met or not can be judged according to the electric quantity of the battery pack before formal use, and whether the battery pack can be reused or not can be determined according to the residual electric quantity of the battery pack after use, so that the problems of waste and pollution caused by one-time use of the battery pack are solved.
As a specific embodiment of the present invention, referring to fig. 6, the battery pack may include a battery cell 140, a self-discharge unit 120, an output control unit 150, a battery management unit, a battery box 110 and a battery cover 130, wherein the battery cell 140, the self-discharge unit 120, the output control unit 150, the battery management unit, and the like are disposed in the battery box 110, and the battery box 110 is provided with a positive terminal P0+, an output control terminal SD0, a discharge terminal TH0, a negative terminal P0-, a data terminal and a clock terminal; meanwhile, 10 pins (Pin) are arranged on the battery cover 130 as shown in table 1, and the positive Pin P +, the output control Pin SD, the clock Pin CLK, the DATA Pin DATA and the negative Pin P-of the 10 pins are all suspended, and the discharge Pin TH is communicated with at least one negative Pin P-; meanwhile, a connector corresponding to the pins of the battery cover 130 one by one is disposed on the main board 210 of the electric power tool, and the connector is communicated with terminals corresponding to the output control pin SD, the discharge pin TH, and the at least one negative electrode pin P-in the battery cover 130 (see fig. 5).
TABLE 1
| Pin number | Definition of | Application method |
| 1 | P+ | Air conditioner |
| 2 | P+ | Air conditioner |
| 3 | P+ | Air conditioner |
| 4 | SD | Air conditioner |
| 5 | TH | To the P-terminal |
| 6 | CLK | Air conditioner |
| 7 | DATA | Air conditioner |
| 8 | P- | To the TH end |
| 9 | P- | Air conditioner |
| 10 | P- | Air conditioner |
When the battery pack is not used, for example, when the battery pack leaves a factory, the battery cover 130 is inserted in the battery box 110, and the discharge pin TH of the battery cover 130 is communicated with at least one negative electrode pin P-, so that the coil in the normally closed relay J1 is electrified, the normally closed switch in the normally closed relay J1 is disconnected, the self-discharge resistor R is disconnected, and self-discharge is not performed at this time; when the battery pack is used, for example, to supply power to an electric tool, at this time, the battery cover 130 is pulled out from the battery box 110, and the battery box 110 is inserted into the electric tool, since the main board 210 of the electric tool is communicated with the terminals corresponding to the output control pin SD, the discharge pin TH and the at least one negative electrode pin P-in the battery cover 130, the output control terminal SD0, the discharge terminal TH0 and the negative electrode terminal P0-of the battery box 110 are communicated, so that the coil in the normally closed relay J1 and the coil in the normally open relay J2 are both energized, the normally closed switch in the normally closed relay J1 is opened, the normally open switch in the normally open relay J2 is closed, the self-discharge function is disabled, and simultaneously, the battery management unit supplies power to the electric tool through the clock terminal and the data terminal, such as the electric core power in serial synchronous transmission mode (e.g., SMBUS, electricity quantity, IIC and other communication modes) to the electric tool; when the battery pack is used and needs to be discarded, the battery box 110 is pulled out from the electric tool and the battery cover 130 is not inserted any more, because all terminals of the battery box 110 are suspended, the coil in the normally closed relay J1 is not electrified, the normally closed switch in the normally closed relay J1 is closed, the self-discharge resistor R is switched on, and self-discharge is performed at the moment, so that the electric quantity of the battery cell 140 is discharged to a safe electric quantity range within a specified time, and accidents such as fire disasters are avoided.
To sum up, the embodiment of the utility model provides a battery package with from discharge function can be when the battery package is abandoned, carries out self-discharge to it to prevent the incident emergence.
The embodiment of the utility model provides an electric tool is still provided, it includes foretell battery package and battery installation storehouse that has from the discharge function, and battery installation storehouse is arranged in installing the battery case of battery package.
Optionally, in one embodiment, the battery mounting compartment is provided on a handle of the power tool. Therefore, the novel LED lamp is attractive in design, striking in position and convenient to disassemble and assemble by a user.
Optionally, in one embodiment, the power tool is a powered stapler.
It should be noted that, for the specific description of the electric tool according to the embodiment of the present invention, reference may be made to the description of the battery pack with self-discharge function according to the embodiment of the present invention, and specific description is not repeated here. In addition, the battery pack with the self-discharge function provided by the embodiment of the present invention can be used not only in an anastomat, but also in other electric tools or other electric devices, and is not limited specifically here.
The embodiment of the utility model provides an electric tool, through setting up the self-discharge unit, battery case and battery cover, and whether peg graft through battery case and battery cover controls the disconnection from the discharge switch or not, and then whether control is carried out the self-discharge work from the discharge unit, when reaching that the battery package is no longer used promptly and is abandoned, can carry out the purpose of discharging to the electric core in the battery package, so that the electric quantity of electric core reduces to safe electric quantity scope, thereby effectively avoid arousing the incident because of the electric quantity of the electric core of abandoning is sufficient and take place.
In the description of the present invention, it is to be understood that 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 implying any 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A battery pack with a self-discharge function is characterized by comprising a battery box, a self-discharge unit and a battery cover, wherein the self-discharge unit comprises a self-discharge switch, the self-discharge switch is used for controlling whether the self-discharge unit performs discharge work or not, an electric core is arranged in the battery box, the positive end of the electric core is connected with one end of the self-discharge unit, the negative end of the electric core is connected with the other end of the self-discharge unit through the battery cover, the self-discharge switch is in an off state to prohibit the self-discharge unit from performing discharge work when the battery box is plugged with the battery cover, and the self-discharge switch is closed to enable the self-discharge unit to perform discharge work when the battery box is pulled out from an electric tool and is not plugged with the battery cover.
2. The battery pack with the self-discharge function according to claim 1, wherein the self-discharge switch is a normally closed relay, the self-discharge unit further includes a self-discharge resistor, wherein one end of the normally closed switch in the normally closed relay is connected to the positive terminal of the battery core, the other end of the normally closed switch in the normally closed relay is connected to the negative terminal of the battery core through the self-discharge resistor, one end of a coil in the normally closed relay is connected to the positive terminal of the battery core, the other end of the coil in the normally closed relay is connected to a discharge pin in the battery cover, and the discharge pin in the battery cover is connected to the negative terminal of the battery core after being connected to the negative pin in the battery cover.
3. The battery pack with the self-discharge function according to claim 1 or 2, further comprising an output control unit, wherein one end of the output control unit is connected to the positive electrode end of the battery core, and the other end of the output control unit is connected to the battery cover, wherein the output control unit is in a closed state when the battery box is unplugged from the battery cover and plugged into the electric tool, so that the battery box supplies power to the electric tool.
4. The battery pack with the self-discharge function according to claim 3, wherein the output control unit includes a normally open relay, one end of a normally open switch in the normally open relay is connected to the positive terminal of the battery cell, the other end of the normally open switch in the normally open relay is connected to the positive terminal pin in the battery cover, one end of a coil in the normally open relay is connected to the positive terminal of the battery cell, and the other end of the coil in the normally open relay is connected to the output control pin in the battery cover.
5. The battery pack with the self-discharge function according to claim 4, wherein the self-discharge unit and the output control unit are disposed in the battery box, and the battery box is provided with a positive terminal, an output control terminal, a discharge terminal and a negative terminal, respectively, the positive terminal is used for connecting with a positive pin in the battery cover, the output control terminal is used for connecting with an output control pin in the battery cover, the discharge terminal is used for connecting with a discharge pin in the battery cover, and the negative terminal is used for connecting with a negative pin in the battery cover.
6. The battery pack with self-discharge function according to claim 5, wherein when the battery box is unplugged from the battery cover and plugged into the electric tool, the positive terminal is connected to a positive power supply end of a main board in the electric tool, and the output control terminal, the discharge terminal and the negative terminal are all connected to a negative power supply end of the main board in the electric tool.
7. The battery pack with self-discharge function according to claim 5, wherein the battery case is further provided with a data terminal and a clock terminal, the data terminal is connected with the data pin in the battery cover, and the clock terminal is connected with the clock pin in the battery cover.
8. An electric power tool, characterized by comprising:
the battery pack having a self-discharge function according to any one of claims 1 to 7;
and the battery mounting bin is used for mounting a battery box in the battery pack.
9. The power tool of claim 8, wherein the battery compartment is disposed on a handle of the power tool.
10. The power tool of claim 8 or 9, wherein the power tool is a power stapler.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021285610.8U CN212303713U (en) | 2020-07-03 | 2020-07-03 | Battery pack with self-discharging function and electric tool |
| PCT/CN2021/102747 WO2022001953A1 (en) | 2020-07-03 | 2021-06-28 | Battery pack with self-discharge function and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021285610.8U CN212303713U (en) | 2020-07-03 | 2020-07-03 | Battery pack with self-discharging function and electric tool |
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| Publication Number | Publication Date |
|---|---|
| CN212303713U true CN212303713U (en) | 2021-01-05 |
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| CN202021285610.8U Active CN212303713U (en) | 2020-07-03 | 2020-07-03 | Battery pack with self-discharging function and electric tool |
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| CN (1) | CN212303713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001953A1 (en) * | 2020-07-03 | 2022-01-06 | 苏州英途康医疗科技有限公司 | Battery pack with self-discharge function and electric tool |
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2020
- 2020-07-03 CN CN202021285610.8U patent/CN212303713U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001953A1 (en) * | 2020-07-03 | 2022-01-06 | 苏州英途康医疗科技有限公司 | Battery pack with self-discharge function and electric tool |
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