CN111371151A - Battery converter of electric tool - Google Patents
Battery converter of electric tool Download PDFInfo
- Publication number
- CN111371151A CN111371151A CN202010293907.7A CN202010293907A CN111371151A CN 111371151 A CN111371151 A CN 111371151A CN 202010293907 A CN202010293907 A CN 202010293907A CN 111371151 A CN111371151 A CN 111371151A
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- Prior art keywords
- battery
- voltage
- output
- converter
- over switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/36—Arrangements using end-cell switching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery converter of an electric tool, which comprises a base (1), wherein the base (1) is provided with a socket (2) mechanically and electrically connected with a power input interface of an electrician tool and a plurality of battery pack plugging ends (3) for detachably connecting battery packs, the battery pack plugging ends (3) are electrically connected with the battery packs and are electrically connected with the socket (2), each group of battery pack plugging ends (3) are respectively arranged at one side of the base (1), and the battery packs arranged at the battery pack plugging ends (3) are connected in parallel or in series. The converter has compact structure, reduced width, and the installed battery packs can be connected in series or in parallel, thereby increasing the application range.
Description
Technical Field
The invention relates to the technical field of electric tools, in particular to a battery converter of an electric tool.
Background
Electric tools are increasingly used by people, and particularly portable electric tools with battery packs can adapt to various occasions. However, the electric tool with the battery pack has a disadvantage that the output voltage of the battery pack is fixed, and thus the electric tool can be used only for a matched electric tool, and cannot be used for an electric tool requiring a higher input voltage. At present, a plurality of patents are disclosed to try to overcome the problem by adopting various technical schemes, namely, a plurality of battery packs are combined into an integral battery pack to improve the output voltage, but the current problem is that the structure is not compact, the battery packs are generally inserted in a side-by-side transverse arrangement manner, so that the width is increased, and the use is influenced in some special occasions; the battery packs are directly connected in series for use, although the output voltage is increased, the use mode is single, and the application range is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a battery converter of an electric tool, which has compact structure, reduced width, and increased application range, and the mounted battery packs can be connected in series or in parallel.
The technical scheme of the invention is that the battery converter of the electric tool with the following structure is provided, the battery converter comprises a base, the base is provided with a plug-in port which is mechanically and electrically connected with a power input interface of an electrician tool and a plurality of battery pack plug-in ends for detachably connecting battery packs, the battery pack plug-in ends are electrically connected with the battery packs and are electrically connected with the plug-in ports, the plug-in ends of each group of battery packs are respectively arranged on one side of the base, and the battery packs arranged at the plug-in ends of the battery packs are connected in parallel or in series.
The battery pack inserting ends are divided into two groups and are respectively arranged on two opposite sides of the base.
The base is provided with a lock catch structure detachably connected with an electrician tool, the lock catch structure comprises a button provided with a spring structure, the end part of the button, which is a lever and a resistance arm, is a locking end, the locking end rises to be locked with the electrician tool, and the locking end falls to be separated from the electrician tool.
The locking structure and the interface are positioned on the same side of the base.
The base is provided with a power supply outlet, and the power supply outlet is electrically connected with a battery pack installed on the base.
The machine base is internally provided with a controller, an 18V machine change-over switch and a 36V machine change-over switch, and when the controller is inserted into a machine, the controller judges and outputs 18V voltage or 36V voltage according to the identification piece and the identification circuit; the 18V machine change-over switch and the 36V machine change-over switch make manual selection according to the signal output recognized by the controller, so that the output voltage is matched with the connected electric tool, 18V low voltage is output by selecting the 18V machine change-over switch, and 36V low voltage is output by selecting the 36V machine change-over switch.
When the plug-in type electric tool is plugged in, the plug-in type electric tool is judged to be 18V or 36V according to the identification piece and the identification circuit, if the judged voltage is consistent with the current output voltage of the battery converter, the plug-in type electric tool is normally powered, if the judged voltage is inconsistent with the current output voltage of the battery converter, the plug-in type electric tool is alarmed through the indicating lamp, the 18V machine change-over switch or the 36V machine change-over switch is switched, so that the voltages.
There are two modes when the 18V voltage is selected: in the first mode, any 18V battery pack can be used; or when one battery pack is in no electricity during use, the battery pack is pulled out and charged, and the other battery pack continues to work to output electric energy to the machine; in the second mode, when two battery packs are used together, the two battery packs are used in parallel.
When the voltage of 36V is selected, two battery packs are connected in series for use.
The power supply output port comprises an output positive electrode, a voltage detection end, a discharge detection end and an output negative electrode; the default of the voltage detection end in the initial state is an infinite resistance value, and at the moment, the detection and judgment of the voltage detection end are regarded as disconnection, and 18V voltage is output; when the voltage detection end is connected with the resistance value of the identification piece, the voltage is 36V output.
After adopting the structure, the invention has the following advantages: because each group of battery pack insertion ends are respectively arranged on one side of the base, the width after installation can be reduced, so that the battery packs do not exceed the width of the whole electrician tool, and the battery packs can conveniently move in the front-back direction when in use. Because the battery packs arranged at the insertion ends of the battery packs are connected in parallel or in series, the converter can output different voltages according to the requirements of machines and users; when the converter is inserted into the machine, the 18V or 36V machine is judged according to the identification piece and the identification circuit, and when the existing condition of the converter is different from 18V or 36V, the converter has an indicator lamp alarm, and a user is required to press the conversion switch buttons of 18V and 36V to match the conversion switch buttons. In this case, the 18V and 36V switches are used to consider the switch as a second safety protection function. The converter still carries a cable output, and the machine that can external band cable connect here, the converter is regarded as the knapsack power, and convenience of customers operates for a long time. First, 18V voltage: 1. when the double-pack is used, one battery pack is pulled out to be charged under the condition that one battery pack is out of power, and the other battery pack can continue to work to output electric energy to the machine. 2. When two battery packs are used together, the battery pack is equivalent to a double-pack parallel connection, and the battery capacity is improved relatively. When high power is required, the controller can calculate the electric energy of the two packages in a combined mode for optimization, so that the controller can output two current values and 36V voltage with high multiplying power. 1. Two battery packs are required for use in this case, corresponding to a series circuit. The controller connects two battery packs in series, so that the controller can increase the output voltage and increase the power at the same current, thereby using a machine with higher power requirement. Controller function of the converter: the purpose is to allow a user to arbitrarily plug an 18V battery pack, and two voltages can be output. 1. Voltage conversion: 18V parallel and series connection 36V; 2. detecting a machine voltage; 3. the two battery packs can be adjusted in tolerance when the voltage difference exists; 4. and respectively detecting the electric quantity of the battery pack.
Drawings
Fig. 1 is a schematic front view of a battery converter of an electric power tool according to the present invention.
Fig. 2 is a rear view of a battery converter of the power tool of the present invention.
Fig. 3 is a schematic diagram of the battery converter and two battery packs of the power tool according to the present invention.
Fig. 4 is an internal schematic view of a battery converter of the power tool of the present invention.
Fig. 5 is a schematic view of the battery converter of the power tool of the present invention mounted to the power tool.
The device comprises a base 1, a base 1.1, a top plate 1.2, a support plate 2, a plug port 3, a battery pack plug end 4, a button 5, a power outlet 6, a locking buckle, a 7V and 18V machine change-over switch, an 8V and 36V machine change-over switch, a 9V and 18V indicator light and a 10V and 36V indicator light.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1-5, the battery converter of the electric tool of the present invention includes a base 1, the base 1 is provided with a socket 2 mechanically and electrically connected to a power input interface of an electrical tool and a plurality of battery pack socket terminals 3 for detachably connecting the battery packs, the battery pack socket terminals 3 are electrically connected to the battery packs and electrically connected to the socket 2, each of the battery pack socket terminals 3 is respectively installed at one side of the base 1, and the battery packs installed at the battery pack socket terminals 3 are connected in parallel or in series. The battery pack may be of the same voltage, such as two 18V battery packs, or of different voltages, such as 18V in combination with 36V.
As shown in fig. 3, the battery pack insertion terminals 3 of the present embodiment are two groups, and are respectively installed on two opposite sides of the base 1. Frame 1 is the T type, including roof 1.1 and backup pad 1.2, and the bottom at roof 1.1 is connected at the top of backup pad 1.2, and battery package grafting end 3 is established respectively at the both sides face of backup pad 1.2, is equipped with the slot on the battery package grafting end 3, and the battery package inserts the slot and detains fixedly by the locking.
The base 1 is provided with a lock catch structure detachably connected with an electrician tool, the lock catch structure comprises a button 4 provided with a spring structure, the end part of the button 4, which is a lever and a resistance arm, is a locking end, the locking end rises to be locked with the electrician tool, and the locking end falls to be separated from the electrician tool. The spring always provides an elastic force at the locking end. The locking structure and the interface 2 are positioned on the same side of the base 1.
The motor base 1 is provided with a power supply outlet 5, and the power supply outlet 5 is electrically connected with a battery pack installed on the motor base 1. The power output port 5 comprises an output positive electrode, a voltage detection end, a discharge detection end and an output negative electrode; the positive output electrode displayed on the base is a P + electrode, the voltage detection end is a T electrode, the discharge detection end is an ID electrode, and the negative output electrode is an ID electrode. The default of the voltage detection end in the initial state is an infinite resistance value, and at the moment, the detection and judgment of the voltage detection end are regarded as disconnection, and 18V voltage is output; when the voltage detection end is connected with the resistance value of the identification piece, the voltage is 36V output. When the T pole is disconnected (the resistance value is infinite), the default is 18V machine, (the interface is not used at the electric tool end in the early stage, so the interface is disconnected, the infinite resistance value is more suitable for the electric tool developed in the early stage, the performance of an electrician tool can be expanded), and when the T pole is connected with the resistance value, the interface is 36V machine.
A controller, an 18V machine change-over switch 7 and a 36V machine change-over switch 8 are arranged in the machine base 1, and when the controller is inserted into a machine, the controller judges and outputs 18V voltage or 36V voltage according to an identification piece and an identification circuit; the 18V machine change-over switch 7 and the 36V machine change-over switch 8 make manual selection according to the signal output recognized by the controller, so that the output voltage is matched with the connected electric tool, 18V low voltage is output when the 18V machine change-over switch 7 is selected, and 36V low voltage is output when the 36V machine change-over switch 8 is selected. An 18V indicator light 9 is arranged beside the 18V machine change-over switch 7, and a 36V indicator light 10 is arranged beside the 36V machine change-over switch 7.
When the electric tool is inserted, the voltage is judged to be 18V or 36V according to the identification piece and the identification circuit, if the judged voltage is consistent with the current output voltage of the battery converter, the electric tool is normally powered, and if the judged voltage is inconsistent with the current output voltage of the battery converter, the 8V machine change-over switch 7 or the 36V machine change-over switch 8 is switched to enable the voltage to be matched and the power to be supplied through an indicator lamp alarm.
There are two modes when the 18V voltage is selected:
in the first mode, any 18V battery pack can be used; or when one battery pack is in no electricity during use, the battery pack is pulled out and charged, and the other battery pack continues to work to output electric energy to the machine;
in the second mode, when two battery packs are used together, the two battery packs are used in parallel. When the voltage of 36V is selected, two battery packs are connected in series for use.
Claims (10)
1. A battery converter for a power tool, comprising: including frame (1), frame (1) is equipped with interface (2) and a plurality of battery package grafting end (3) that supply battery package detachable connections with electrician's instrument's power input interface mechanical connection and electricity, and battery package grafting end (3) are all connected and are connected with interface (2) electricity with the battery package, and wherein one side in frame (1) is installed respectively in every group battery package grafting end (3), installs the battery package adoption of battery package grafting end (3) and connects in parallel or establish ties.
2. The battery converter for a power tool according to claim 1, wherein: the battery pack inserting ends (3) are divided into two groups and are respectively arranged on two opposite sides of the base (1).
3. The battery converter for a power tool according to claim 1, wherein: the base (1) is provided with a lock catch structure detachably connected with an electrical tool, the lock catch structure comprises a button (4) provided with a spring structure, the end part of the button (4) which is a lever and a resistance arm is a locking end, the locking end rises and is locked with the electrical tool, and the locking end falls and is separated from the electrical tool.
4. The battery converter for a power tool according to claim 1, wherein: the locking structure and the interface (2) are positioned on the same side of the base (1).
5. The battery converter for a power tool according to claim 1, wherein: the battery pack is characterized in that a power supply outlet (5) is formed in the base (1), and the power supply outlet (5) is electrically connected with the battery pack installed on the base (1).
6. The battery converter for a power tool according to claim 1, wherein: a controller, an 18V machine change-over switch (7) and a 36V machine change-over switch (8) are arranged in the machine base (1), and when the controller is inserted into a machine, the controller judges and outputs 18V voltage or 36V voltage according to the identification piece and the identification circuit; the 18V machine change-over switch (7) and the 36V machine change-over switch (8) are manually selected according to the signal output recognized by the controller, so that the output voltage is matched with the connected electric tool, 18V low voltage is output when the 18V machine change-over switch (7) is selected, and 36V low voltage is output when the 36V machine change-over switch (8) is selected.
7. The battery converter for a power tool according to claim 1, wherein: when the plug-in type electric tool is plugged in, the plug-in type electric tool is judged to be 18V or 36V according to the identification piece and the identification circuit, if the judged voltage is consistent with the current output voltage of the battery converter, the plug-in type electric tool is normally powered, if the judged voltage is inconsistent with the current output voltage of the battery converter, an indicator lamp is used for alarming, an 8V machine change-over switch (7) or a 36V machine change-over switch (8) is switched, and the voltage of the plug-in type electric.
8. The battery converter for electric power tool according to claim 6 or 7, wherein: there are two modes when the 18V voltage is selected: in the first mode, any 18V battery pack can be used; or when one battery pack is in no electricity during use, the battery pack is pulled out and charged, and the other battery pack continues to work to output electric energy to the machine; in the second mode, when two battery packs are used together, the two battery packs are used in parallel.
9. The battery converter for electric power tool according to claim 6 or 7, wherein: when the voltage of 36V is selected, two battery packs are connected in series for use.
10. The battery converter for power tool as claimed in claim 5, wherein: the power supply output port (5) comprises an output positive electrode, a voltage detection end, a discharge detection end and an output negative electrode; the default of the voltage detection end in the initial state is an infinite resistance value, and the voltage detection end outputs 18V voltage when detecting disconnection; when the voltage detection end is connected with a resistance value, the voltage is output to be 36V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293907.7A CN111371151A (en) | 2020-04-15 | 2020-04-15 | Battery converter of electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293907.7A CN111371151A (en) | 2020-04-15 | 2020-04-15 | Battery converter of electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111371151A true CN111371151A (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010293907.7A Pending CN111371151A (en) | 2020-04-15 | 2020-04-15 | Battery converter of electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111371151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709542A (en) * | 2022-03-24 | 2022-07-05 | 浙江博来工具有限公司 | Battery pack mounting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201528005U (en) * | 2009-11-19 | 2010-07-14 | 南京德朔实业有限公司 | Locking device of battery pack |
| CN106654131A (en) * | 2016-11-16 | 2017-05-10 | 南京久驰机电实业有限公司 | Electric tool system |
| CN108365664A (en) * | 2018-04-07 | 2018-08-03 | 江苏东成机电工具有限公司 | A kind of battery pack voltage conversion circuit and adapter |
| CN209029945U (en) * | 2018-11-02 | 2019-06-25 | 南京久驰机电实业有限公司 | A kind of intelligent adaptation power supply |
| CN211744091U (en) * | 2020-04-15 | 2020-10-23 | 宁波市天铭工具有限公司 | Battery converter of electric tool |
-
2020
- 2020-04-15 CN CN202010293907.7A patent/CN111371151A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201528005U (en) * | 2009-11-19 | 2010-07-14 | 南京德朔实业有限公司 | Locking device of battery pack |
| CN106654131A (en) * | 2016-11-16 | 2017-05-10 | 南京久驰机电实业有限公司 | Electric tool system |
| CN108365664A (en) * | 2018-04-07 | 2018-08-03 | 江苏东成机电工具有限公司 | A kind of battery pack voltage conversion circuit and adapter |
| CN209029945U (en) * | 2018-11-02 | 2019-06-25 | 南京久驰机电实业有限公司 | A kind of intelligent adaptation power supply |
| CN211744091U (en) * | 2020-04-15 | 2020-10-23 | 宁波市天铭工具有限公司 | Battery converter of electric tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709542A (en) * | 2022-03-24 | 2022-07-05 | 浙江博来工具有限公司 | Battery pack mounting mechanism |
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