CN109950433B - Communication method suitable for battery pack and battery pack - Google Patents
Communication method suitable for battery pack and battery pack Download PDFInfo
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- CN109950433B CN109950433B CN201711384245.9A CN201711384245A CN109950433B CN 109950433 B CN109950433 B CN 109950433B CN 201711384245 A CN201711384245 A CN 201711384245A CN 109950433 B CN109950433 B CN 109950433B
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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
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- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the invention provides a communication method suitable for a battery pack and the battery pack. The method comprises the following steps: the battery pack sends configuration information to the electric tool or the charger through the first port; the battery pack receives the electrical parameter information sent by the electric tool or the charger through the second port. According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with a communication function is realized under the condition that the size and the port of the battery pack are not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to users.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a communication method suitable for a battery pack and the battery pack.
Background
Power tools, such as lithium-ion power tools, have been commercially available for many years, and a large number of battery packs and tools are available.
Along with the conversion of the Internet to the Internet of Things (IOT for short), the electric tool may also realize networking, for example, a user wants to remotely obtain the electric quantity of the battery pack through the mobile phone APP, set the rotation speed and the torque of the electric tool through the mobile phone APP, display the operation parameters of the electric tool through the mobile phone APP, and the battery pack can obtain the charging state of the battery through the mobile phone APP when charging, and so on.
In order to enable the electric tool to be networked, a battery pack, an electric tool or a charger is required to have a communication function, while the battery pack, the electric tool or the charger in the prior art is not provided with a communication function suitable for IOT, and two paths of signals need to be transmitted and received in the wired communication in the prior art, that is, two ports need to be added to the battery pack in the prior art in order to enable the battery pack in the prior art to have the communication function. If two ports are added to the battery pack in the prior art, the battery pack will increase in volume, increase in ports, and be unable to adapt to the electric tool or charger in the prior art.
Disclosure of Invention
The embodiment of the invention provides a communication method suitable for a battery pack and the battery pack, and aims to realize the battery pack with a communication function.
One aspect of the embodiments of the present invention is to provide a communication method suitable for a battery pack, where the battery pack is electrically connected to an electric tool or a charger through four ports, where the four ports include a first port, a second port, a positive terminal and a negative terminal, the first port has a data sending function and a function of outputting a first status signal, the second port has a data receiving function and a function of outputting a second status signal, the first status signal includes a battery pack ID, and the second status signal includes a battery pack temperature or a status signal of a single battery in the battery pack; the method comprises the following steps:
the battery pack sends configuration information to the electric tool or the charger through the first port;
the battery pack receives the electrical parameter information sent by the electric tool or the charger through the second port.
Optionally, the method further includes:
the battery pack upgrades a program in the electric tool or the charger through a data transmission function of the first port and a data reception function of the second port.
Optionally, the battery pack further includes: a wireless communication module;
the method further comprises the following steps:
and the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
Optionally, the wireless communication module includes at least one of:
bluetooth module, WIFI module.
Optionally, when the electric tool or the charger has a data transceiving function, the battery pack sends the battery pack ID to the electric tool or the charger through the first port.
Optionally, the battery pack is linked to a terminal device, and the method further includes:
when the electric tool or the charger has a data transceiving function, the battery pack sends the parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
Optionally, the sending, by the battery pack, the parameter information of the electric tool or the charger to the terminal device through the wireless communication module includes:
the battery pack sends the program version identification of the electric tool to the terminal equipment through the wireless communication module;
the method further comprises the following steps:
the battery pack receives an upgrading program sent by the terminal equipment through the wireless communication module, and sends the upgrading program to the electric tool through the first port.
Optionally, the method further includes:
when the battery is charged, the battery pack sends the parameter information of the battery or the charger to the terminal equipment through the wireless communication module.
It is another aspect of an embodiment of the present invention to provide a battery pack electrically connected to an electric tool or a charger through four ports, including a first port, a second port, a positive terminal, and a negative terminal;
the first port has a data sending function and a function of outputting a first state signal;
the second port has a data receiving function and a function of outputting a second state signal;
the first state signal comprises a battery pack ID, and the second state signal comprises a battery pack temperature or a state signal of a single battery in the battery pack;
the battery pack sends configuration information to the electric tool or the charger through the first port;
the battery pack receives the electrical parameter information sent by the electric tool or the charger through the second port.
Optionally, the battery pack upgrades a program in the electric tool or the charger through a data transmission function of the first port and a data reception function of the second port.
Optionally, the battery pack further includes: a wireless communication module;
and the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
Optionally, the wireless communication module includes at least one of:
bluetooth module, WIFI module.
Optionally, when the electric tool or the charger has a data transceiving function, the battery pack sends the battery pack ID to the electric tool or the charger through the first port.
Optionally, the battery pack is linked with a terminal device, and when the electric tool or the charger has a data transceiving function, the battery pack sends the parameter information of the electric tool or the charger to the terminal device through the wireless communication module.
Optionally, the battery pack sends the program version identifier of the electric tool to the terminal device through the wireless communication module;
the battery pack receives an upgrading program sent by the terminal equipment through the wireless communication module, and sends the upgrading program to the electric tool through the first port.
Optionally, when the battery is charged, the battery pack sends the parameter information of the battery or the charger to the terminal device through the wireless communication module.
According to the communication method suitable for the battery pack and the battery pack, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a battery pack in the prior art;
FIG. 2 is a schematic diagram of a prior art power tool;
FIG. 3 is a schematic diagram of a charger according to the prior art;
fig. 4 is a schematic structural diagram of a battery pack in the prior art;
FIG. 5 is a schematic view of a prior art battery pack and power tool connection;
FIG. 6 is a schematic diagram of a prior art battery pack and charger connection;
fig. 7 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
FIG. 8 is a schematic view of a battery pack and power tool connection provided by an embodiment of the present invention;
FIG. 9 is a schematic diagram of a battery pack and charger connection provided by an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a corresponding relationship between a battery pack, a charger, and an electric tool according to an embodiment of the present invention;
fig. 11 is a flowchart of a communication method for a battery pack according to an embodiment of the present invention;
FIG. 12 is a schematic diagram of communication between a battery pack and a power tool according to an embodiment of the invention;
fig. 13 is a schematic diagram of communication between a battery pack and a charger according to an embodiment of the present invention;
fig. 14 is a communication diagram of a terminal device, a battery pack and an electric tool according to an embodiment of the present invention;
fig. 15 is a communication diagram of a terminal device, a battery pack, and a charger according to an embodiment of the present invention;
fig. 16 is a schematic circuit diagram of a battery pack and a power tool according to an embodiment of the invention;
fig. 17 is a schematic circuit diagram of a battery pack and a charger according to an embodiment of the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of a battery pack in the prior art. Fig. 2 is a schematic structural diagram of a power tool in the prior art. Fig. 3 is a schematic structural diagram of a charger in the prior art. As shown in fig. 1, the battery pack 10 includes 4 ports, such as a port 101, a port 102, a port 103, and a port 104, wherein the port 101 is a positive electrode, the port 104 is a negative electrode, the port 102 can output a first status signal, the first status signal represents an identification ID of the battery pack 10, and the port 103 can output a second status signal, the second status signal represents a temperature of the battery pack 10 or a status signal of a single battery in the battery pack 10. In the present embodiment, as shown in fig. 4, the port 101 is simply referred to as a positive electrode, the port 104 is simply referred to as a negative electrode, the port 102 is simply referred to as a BS interface, and the port 103 is simply referred to as a TV interface.
As shown in fig. 2, the power tool 11 includes 3 ports, such as a port 111, a port 113, and a port 114, wherein the port 111 is a positive electrode, the port 114 is a negative electrode, and the port 113 is used for connecting with the port 103 of the battery pack 10. It can be understood that: the prior art power tool 11 does not have a BS interface.
As shown in fig. 3, the charger 12 includes 4 ports, such as a port 121, a port 122, a port 123, and a port 124, wherein the port 121 is a positive electrode, the port 124 is a negative electrode, the port 122 is for connecting with the port 102 of the battery pack 10, and the port 123 is for connecting with the port 103 of the battery pack 10.
Fig. 5 is a schematic diagram of a prior art battery pack and power tool connection. Fig. 6 is a schematic diagram of a prior art battery pack and charger connection. As shown in fig. 5, the positive electrode of the battery pack 10 is connected to the port 111 of the electric power tool 11, the BS interface of the battery pack 10 is idle, the TV interface of the battery pack 10 is connected to the port 113 of the electric power tool 11, and the negative electrode of the battery pack 10 is connected to the port 114 of the electric power tool 11.
As shown in fig. 6, the positive terminal of the battery pack 10 is connected to the port 121 of the charger 12, the BS interface of the battery pack 10 is connected to the port 122 of the charger 12, the TV interface of the battery pack 10 is connected to the port 123 of the charger 12, and the negative terminal of the battery pack 10 is connected to the port 124 of the charger 12.
As can be seen from fig. 1 to 6, the battery pack 10 has no communication function, and the power tool 11 and the charger 12 also have no communication function, so from the perspective of the internet of things, the application range of the battery pack 10 is limited if the battery pack has no communication function. In general, in order to provide the battery pack 10 with a communication function, it is conceivable that: adding two ports to an existing battery pack, one for transmitting data and the other for receiving data, would increase the size of the battery pack 10 and would not match the power tools or chargers already available on the market.
In the present embodiment, on the premise that the volume of the battery pack 10 is not increased, in order to enable the battery pack 10 to have the communication function, the communication function of the battery pack 10 can be realized in a port multiplexing manner. The invention provides a communication method suitable for a battery pack, and aims to solve the technical problems in the prior art.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 7 is a schematic structural diagram of a battery pack according to an embodiment of the present invention. As shown in fig. 7, the battery pack 70 includes four ports, such as a port 71, a port 72, a port 73, and a port 74, wherein the port 71 is a positive electrode; port 74 is negative; the port 72 is a multiplexing interface, and specifically, the port 72 has both a data transmission function and a function of outputting a first status signal indicating the identification ID of the battery pack 10; the port 73 is a multiplexing interface, and specifically, the port 73 has both a data receiving function and a function of outputting a second status signal, where the second status signal indicates the temperature of the battery pack 10 or a status signal of a single battery in the battery pack 10.
In this embodiment, the battery pack is electrically connected to the electric tool or the charger through four ports, where the four ports include a first port, a second port, a positive terminal and a negative terminal, the first port has a data sending function and outputs a first status signal, the second port has a data receiving function and outputs a second status signal, the first status signal includes a battery pack ID, and the second status signal includes a battery pack temperature or a status signal of a single battery in the battery pack. The first port is specifically a port 72 shown in fig. 7, and the second port is specifically a port 73 shown in fig. 7.
Fig. 8 is a schematic diagram of the connection between the battery pack and the power tool according to the embodiment of the invention. Fig. 9 is a schematic diagram of a battery pack and a charger according to an embodiment of the present invention. As shown in fig. 8, a port 112 is added to the power tool 11, and the port 112 corresponds to a BS interface of the power tool 11. The positive electrode of the battery pack 70 is connected to the port 111 of the electric tool 11, the BS/TX multiplexing interface of the battery pack 70 is connected to the port 112 of the electric tool 11, the TV/RX multiplexing interface of the battery pack 70 is connected to the port 113 of the electric tool 11, and the negative electrode of the battery pack 70 is connected to the port 114 of the electric tool 11. As shown in fig. 9, the positive terminal of the battery pack 70 is connected to the port 121 of the charger 12, the BS/TX multiplexing interface of the battery pack 70 is connected to the port 122 of the charger 12, the TV/RX multiplexing interface of the battery pack 70 is connected to the port 123 of the charger 12, and the negative terminal of the battery pack 70 is connected to the port 124 of the charger 12.
The power tool 11 or the charger 12 may detect the ID of the battery pack 70 through the BS/TX multiplexing interface when the BS/TX multiplexing interface BS of the battery pack 70 is enabled, and the battery pack 10 may transmit data to the power tool 11 or the charger 12 through the BS/TX multiplexing interface when the BS/TX multiplexing interface TX of the battery pack 70 is enabled. When the TV/RX multiplexing interface TV of the battery pack 70 is enabled, the power tool 11 or the charger 12 may detect the temperature of the battery pack 70 or the state of a single battery through the TV/RX multiplexing interface, and when the TV/RX multiplexing interface RX of the battery pack 70 is enabled, the battery pack 70 may receive data transmitted by the power tool 11 or the charger 12 through the TV/RX multiplexing interface.
As shown in fig. 10, 10 denotes a battery pack in the related art, 70 denotes a battery pack provided in the present embodiment, 11 denotes a power tool in the related art, 12 denotes a charger in the related art, 110 denotes a power tool provided in the present embodiment, and 120 denotes a charger provided in the present embodiment, the power tool 110 and the power tool 11 are different in that the power tool 110 includes 4 ports, the power tool 11 includes 3 ports, and the port 112 of the power tool 110 has a data receiving function and the port 113 of the power tool 110 has a data transmitting function. The charger 120 is different from the charger 12 in that a port 122 of the charger 120 has a data receiving function, and a port 123 of the charger 120 has a data transmitting function. It can be seen that the battery pack 10 can be adapted to the electric tool 11 or the charger 12, and the battery pack 10 can also be adapted to the electric tool 110 or the charger 120, and similarly, the battery pack 70 can be adapted to the electric tool 11 or the charger 12, and the battery pack 70 can also be adapted to the electric tool 110 or the charger 120, thereby solving the problem that the battery pack in the prior art is not adapted to the existing electric tool or charger in the market, and bringing convenience to users.
Fig. 11 is a flowchart of a communication method for a battery pack according to an embodiment of the present invention. The embodiment of the invention provides a communication method suitable for a battery pack aiming at the technical problems in the prior art, and the method comprises the following specific steps:
As shown in fig. 12, the battery pack 70 may transmit configuration information to the port 112 of the power tool 110 through the BS/TX multiplexing interface, where the port 112 of the power tool 110 has a data receiving function, and specifically, the battery pack 70 may transmit configuration information to the port 112 of the power tool 110 through the BS/TX multiplexing interface, where the configuration information may specifically include torque, rotation speed, and the like, so as to control the torque, rotation speed, and the like of the motor of the power tool 110.
As shown in fig. 13, the battery pack 70 may send configuration information to the port 122 of the charger 120 through the BS/TX multiplexing interface, where the port 122 of the charger 120 has a data receiving function, and specifically, the battery pack 70 may send configuration information to the port 122 of the charger 120 through the BS/TX multiplexing interface, where the configuration information may specifically include charging power, output current, output voltage, and the like, so as to control the charging power, the output current, the output voltage, and the like of the charger 120.
And 1102, the battery pack receives electrical parameter information sent by the electric tool or the charger through a second port.
As shown in fig. 12, the port 113 of the power tool 110 has a data transmission function, the battery pack 70 can receive the electrical parameter information transmitted by the power tool 110 through the TV/RX multiplexing interface, and the electrical parameter information of the power tool 110 may specifically be the actual rotation speed, the current, the temperature, and the like of the motor of the power tool 110.
As shown in fig. 13, the port 123 of the charger 120 has a data transmission function, and the battery pack 70 may receive the electrical parameter information transmitted by the charger 120 through the TV/RX multiplexing interface, where the electrical parameter information of the charger 120 may specifically be an actual charging power, an actual output current, an actual output voltage, and the like of the charger 120.
In other embodiments, the battery pack upgrades a program in the power tool or the charger through the data transmission function of the first port and the data reception function of the second port.
In this embodiment, a Micro Controller Unit (MCU) may be respectively disposed in the charger 120 and the power tool 110, and the MCU may call a program to implement corresponding functions, and optionally, the battery pack 70 may also upgrade the program in the power tool 110 or the charger 120 through a data transmitting function of the BS/TX multiplexing interface and a data receiving function of the TV/RX multiplexing interface. When the battery pack 70 upgrades the program of the power tool 110 through the data transmission function of the BS/TX multiplexing interface and the data reception function of the TV/RX multiplexing interface, the battery pack 70 and the power tool 110 perform data transmission through the BS/TX multiplexing interface and the TV/RX multiplexing interface. When the battery pack 70 upgrades the program of the charger 120 through the data transmission function of the BS/TX multiplexing interface and the data reception function of the TV/RX multiplexing interface, the battery pack 70 and the charger 120 perform data transmission through the BS/TX multiplexing interface and the TV/RX multiplexing interface.
According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with the communication function is realized under the condition of ensuring that the size of the battery pack is not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to a user.
On the basis of the above embodiment, the battery pack further includes: a wireless communication module; the wireless communication module includes at least one of: bluetooth module, WIFI module. Optionally, the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal device through the wireless communication module.
As shown in fig. 14, the battery pack 70 further includes a wireless communication module including at least one of: bluetooth module, WIFI module. The battery pack 70 wirelessly communicates with the terminal device 140 via the wireless communication module, the battery pack 70 can receive the electrical parameter information transmitted by the power tool 110 via the TV/RX multiplexing interface, and further, the battery pack 70 can transmit the electrical parameter information of the power tool 110 to the terminal device 140 via the wireless communication module. The battery pack 70 may also receive configuration information of the power tool 110 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the configuration information of the power tool 110 to the power tool 110 through the BS/TX multiplexing interface. In addition, the battery pack 70 may also receive the upgrade program of the power tool 110 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the upgrade program of the power tool 110 to the power tool 110 through the BS/TX multiplexing interface.
As shown in fig. 15, the battery pack 70 further includes a wireless communication module including at least one of: bluetooth module, WIFI module. The battery pack 70 wirelessly communicates with the terminal device 140 via the wireless communication module, the battery pack 70 can receive the electrical parameter information sent by the charger 120 via the TV/RX multiplexing interface, and further, the battery pack 70 can send the electrical parameter information of the charger 120 to the terminal device 140 via the wireless communication module. The battery pack 70 may also receive configuration information of the charger 120 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the configuration information of the charger 120 to the charger 120 through the BS/TX multiplexing interface. In addition, when the power tool 110 or the charger 120 has a data transceiving function, the battery pack 70 may also transmit parameter information of the power tool 110 or the charger 120 to the terminal device 140 through the wireless communication module. Specifically, the battery pack 70 transmits the program version identification of the electric tool 110 to the terminal device 140 through the wireless communication module, and the battery pack 70 may also receive the upgrade program transmitted by the terminal device 140 through the wireless communication module and transmit the upgrade program to the electric tool 110 through the BS/TX multiplexing interface. The battery pack 70 may also transmit parameter information of the battery or the charger 120 to the terminal device 140 through the wireless communication module when the battery is charged.
The battery pack 70 may also receive the upgrade program of the charger 120 transmitted from the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the upgrade program of the charger 120 to the charger 120 through the BS/TX multiplexing interface.
As shown in fig. 14 or 15, the power tool 110 or the charger 120 has a data transceiving function, and optionally, when the power tool or the charger has the data transceiving function, the battery pack transmits the battery pack ID to the power tool or the charger through the first port. When the power tool 110 or the charger 120 does not have the data transceiving function, the power tool 110 or the charger 120 determines the ID of the battery pack 70 by the magnitude of the voltage output from the BS interface of the battery pack 70. When the power tool 110 or the charger 120 has a data transmission and reception function, the battery pack 70 may directly transmit the ID of the battery pack 70 to the power tool 110 or the charger 120 through the data transmission function of the BS/TX multiplexing interface.
Further, when the battery pack 70 is connected to the power tool 110, the battery pack 70 supplies power to the power tool 110, i.e., the battery pack 70 discharges; when the battery pack 70 is connected to the charger 120, the charger 120 charges the battery pack 70, when the charger 120 charges the battery pack 70, the charger 120 may collect the temperature of the battery pack 70 or the status signal of a single battery in the battery pack 70 through the TV of the TV/RX multiplexing interface of the battery pack, and when the temperature of the battery pack 70 is too high or too low, the charger 120 stops charging the battery pack 70, or when a single battery in the battery pack 70 is in an overcharged state, the charger 120 stops charging the battery pack 70, thereby implementing the charging protection of the battery pack 70. When the charger 120 needs to transmit the electrical parameters of the charger 120 to the battery pack 70, the battery pack 70 may receive the electrical parameters transmitted by the charger 120 through the RX of the TV/RX multiplexing interface.
According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with a communication function is realized under the condition that the size of the battery pack is not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to a user.
Fig. 16 is a schematic circuit diagram of a battery pack and an electric tool according to an embodiment of the present invention. As shown in fig. 16, 161 denotes a circuit of the battery pack, 162 denotes a circuit of the electric power tool, 163 denotes an MCU of the battery pack, and 164 denotes an MCU of the electric power tool.
As shown in fig. 16, the BS interface of the battery pack has a data transmission function, i.e., BS and TX multiplexing, and the TV interface of the battery pack has a data reception function, i.e., TV and RX multiplexing. The TX of the MCU 164 of the power tool also has an ADC Function, and the switching of the TX and ADC functions of the MCU 164 of the power tool is controlled by a Function switch port in the MCU 164 of the power tool.
Specifically, as shown in fig. 16, when the Function switch port is 1, the TX/ADC multiplexing interface of the MCU 164 of the electric power tool is switched to the ADC mode, at which time, Q3 in the circuit 162 of the electric power tool is turned on, VCC in the circuit 162 of the electric power tool is electrically connected to Q3, Q3 is electrically connected to R8 in the circuit 162 of the electric power tool, R8 is electrically connected to an NTC in the circuit 161 of the battery pack, the NTC is electrically connected to Q5 in the circuit 161 of the battery pack, and Q5 is grounded, thereby realizing AD sampling.
As shown in fig. 16, when the Function switch port is 0, the TX/ADC multiplexing interface of the MCU 164 of the electric power tool is switched to the TX mode, and at this time, Q3 in the circuit 162 of the electric power tool is turned off, the TX port of the MCU 164 of the electric power tool is electrically connected to R7 in the circuit 161 of the battery pack, and R7 is electrically connected to RX of the MCU 163 of the battery pack, thereby realizing communication between the MCU 164 of the electric power tool and the MCU 163 of the battery pack.
Fig. 17 is a schematic circuit diagram of a battery pack and a charger according to an embodiment of the present invention. As shown in fig. 17, 171 denotes a circuit of the battery pack, 172 denotes a circuit of the charger, 173 denotes an MCU of the battery pack, and 174 denotes an MCU of the charger.
As shown in fig. 17, the BS interface of the battery pack has a data transmission function, i.e., BS and TX multiplexing, and the TV interface of the battery pack has a data reception function, i.e., TV and RX multiplexing. The TX of the MCU 174 of the charger also serves as an ADC Function, and the switching of the TX and ADC functions of the MCU 174 of the charger is controlled by a Function switch port within the MCU 174 of the charger.
Specifically, as shown in fig. 17, when the Function switch port is 1, the TX/ADC multiplexing interface of the MCU 174 of the charger is switched to the ADC mode, at this time, Q6 in the circuit 172 of the charger is turned on, VCC in the circuit 172 of the charger is electrically connected to Q6, Q6 is electrically connected to R15 in the circuit 172 of the charger, R15 is electrically connected to an NTC in the circuit 171 of the battery pack, the NTC is electrically connected to Q5 in the circuit 171 of the battery pack, and Q5 is grounded, thereby implementing AD sampling.
As shown in fig. 17, when the Function switch port is 0, the TX/ADC multiplexing interface of the MCU 174 of the charger switches to the TX mode, at which time Q6 in the circuit 172 of the charger is turned off, the TX port of the MCU 174 of the charger is electrically connected to R7 in the circuit 171 of the battery pack, and R7 is electrically connected to RX of the MCU 173 of the battery pack, thereby realizing communication between the MCU 174 of the charger and the MCU 173 of the battery pack.
According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with a communication function is realized under the condition that the size of the battery pack is not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to a user.
The embodiment of the invention provides a battery pack, which is electrically connected with an electric tool or a charger through four ports, wherein the four ports comprise a first port, a second port, a positive terminal and a negative terminal; the first port has a data sending function and a function of outputting a first state signal; the second port has a data receiving function and a function of outputting a second state signal; the first state signal comprises a battery pack ID, and the second state signal comprises a battery pack temperature or a state signal of a single battery in the battery pack; the battery pack sends configuration information to the electric tool or the charger through the first port; the battery pack receives the electrical parameter information sent by the electric tool or the charger through the second port. The first port is embodied as port 72 shown in fig. 7 and the second port is embodied as port 73 shown in fig. 7.
Fig. 7 is a schematic structural diagram of a battery pack according to an embodiment of the present invention. As shown in fig. 7, the battery pack 70 includes four ports, such as a port 71, a port 72, a port 73, and a port 74, wherein the port 71 is a positive electrode; port 74 is negative; the port 72 is a multiplexing interface, and specifically, the port 72 has both a data transmission function and a function of outputting a first status signal indicating the identification ID of the battery pack 10; the port 73 is a multiplexing interface, and specifically, the port 73 has both a data receiving function and a function of outputting a second status signal, where the second status signal indicates the temperature of the battery pack 10 or a status signal of a single battery in the battery pack 10.
As shown in fig. 12, the battery pack 70 may transmit configuration information to the port 112 of the power tool 110 through the BS/TX multiplexing interface, where the port 112 of the power tool 110 has a data receiving function, and specifically, the battery pack 70 may transmit configuration information to the port 112 of the power tool 110 through the BS/TX multiplexing interface, where the configuration information may specifically include torque, rotation speed, and the like, so as to control the torque, rotation speed, and the like of the motor of the power tool 110.
As shown in fig. 13, the battery pack 70 may send configuration information to the port 122 of the charger 120 through the BS/TX multiplexing interface, where the port 122 of the charger 120 has a data receiving function, and specifically, the battery pack 70 may send configuration information to the port 122 of the charger 120 through the BS/TX multiplexing interface, where the configuration information may specifically include charging power, output current, output voltage, and the like, so as to control the charging power, the output current, the output voltage, and the like of the charger 120.
As shown in fig. 12, the port 113 of the power tool 110 has a data transmission function, the battery pack 70 can receive the electrical parameter information transmitted by the power tool 110 through the TV/RX multiplexing interface, and the electrical parameter information of the power tool 110 may specifically be the actual rotation speed, the current, the temperature, and the like of the motor of the power tool 110.
As shown in fig. 13, the port 123 of the charger 120 has a data transmission function, and the battery pack 70 can receive the electrical parameter information transmitted by the charger 120 through the TV/RX multiplexing interface, where the electrical parameter information of the charger 120 may specifically be the actual charging power, the actual output current, the actual output voltage, and the like of the charger 120.
In other embodiments, the battery pack upgrades a program in the power tool or the charger through the data transmission function of the first port and the data reception function of the second port.
In this embodiment, a Micro Controller Unit (MCU) may be respectively disposed in the charger 120 and the electric tool 110, the MCU may call a program to implement corresponding functions, and optionally, the battery pack 70 may upgrade the program in the electric tool 110 or the charger 120 through a data transmitting function of the BS/TX multiplexing interface and a data receiving function of the TV/RX multiplexing interface. When the battery pack 70 upgrades the program of the electric tool 110 through the data transmission function of the BS/TX multiplexing interface and the data reception function of the TV/RX multiplexing interface, the battery pack 70 and the electric tool 110 perform data transmission through the BS/TX multiplexing interface and the TV/RX multiplexing interface. When the battery pack 70 upgrades the program of the charger 120 through the data transmission function of the BS/TX multiplexing interface and the data reception function of the TV/RX multiplexing interface, the battery pack 70 and the charger 120 perform data transmission through the BS/TX multiplexing interface and the TV/RX multiplexing interface.
According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with a communication function is realized under the condition that the size of the battery pack is not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to a user.
On the basis of the above embodiment, the battery pack further includes: a wireless communication module; the wireless communication module includes at least one of: bluetooth module, WIFI module. Optionally, the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal device through the wireless communication module.
As shown in fig. 14, the battery pack 70 further includes a wireless communication module including at least one of: bluetooth module, WIFI module. The battery pack 70 wirelessly communicates with the terminal device 140 via the wireless communication module, the battery pack 70 may receive the electrical parameter information transmitted by the power tool 110 via the TV/RX multiplexing interface, and further, the battery pack 70 may transmit the electrical parameter information of the power tool 110 to the terminal device 140 via the wireless communication module. The battery pack 70 may also receive configuration information of the power tool 110 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the configuration information of the power tool 110 to the power tool 110 through the BS/TX multiplexing interface. In addition, the battery pack 70 may also receive the upgrade program of the power tool 110 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the upgrade program of the power tool 110 to the power tool 110 through the BS/TX multiplexing interface.
As shown in fig. 15, the battery pack 70 further includes a wireless communication module including at least one of: bluetooth module, WIFI module. The battery pack 70 wirelessly communicates with the terminal device 140 via the wireless communication module, the battery pack 70 can receive the electrical parameter information sent by the charger 120 via the TV/RX multiplexing interface, and further, the battery pack 70 can send the electrical parameter information of the charger 120 to the terminal device 140 via the wireless communication module. The battery pack 70 may also receive configuration information of the charger 120 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the configuration information of the charger 120 to the charger 120 through the BS/TX multiplexing interface. In addition, the battery pack 70 may also receive the upgrade program of the charger 120 transmitted by the terminal device 140 through the wireless communication module, and the battery pack 70 further transmits the upgrade program of the charger 120 to the charger 120 through the BS/TX multiplexing interface.
As shown in fig. 14 or 15, the power tool 110 or the charger 120 has a data transceiving function, and optionally, when the power tool or the charger has the data transceiving function, the battery pack transmits the battery pack ID to the power tool or the charger through the first port. When the power tool 110 or the charger 120 does not have the data transceiving function, the power tool 110 or the charger 120 determines the ID of the battery pack 70 by the magnitude of the voltage output from the BS interface of the battery pack 70. When the power tool 110 or the charger 120 has a data transmission and reception function, the battery pack 70 may directly transmit the ID of the battery pack 70 to the power tool 110 or the charger 120 through the data transmission function of the BS/TX multiplexing interface.
Further, when the battery pack 70 is connected to the power tool 110, the battery pack 70 supplies power to the power tool 110, i.e., the battery pack 70 discharges; when the battery pack 70 is connected to the charger 120, the charger 120 charges the battery pack 70, when the charger 120 charges the battery pack 70, the charger 120 may collect the temperature of the battery pack 70 or the status signal of a single battery in the battery pack 70 through a TV of a TV/RX multiplexing interface of the battery pack, when the temperature of the battery pack 70 is too high, the charger 120 stops charging the battery pack 70, or when the single battery in the battery pack 70 is in an overcharged state or an overdischarged state, the charger 120 stops charging the battery pack 70, thereby implementing the charging protection of the battery pack 70. When the charger 120 needs to transmit the electrical parameters of the charger 120 to the battery pack 70, the battery pack 70 may receive the electrical parameters transmitted by the charger 120 through the RX of the TV/RX multiplexing interface.
According to the embodiment of the invention, the BS interface of the battery pack is multiplexed with a data sending function, the TV interface of the battery pack is multiplexed with a data receiving function, when the battery pack is connected with the electric tool or the charger, the electric tool or the charger can determine the state of the battery pack according to the state signal on the BS interface or the TV interface, and meanwhile, data communication can be carried out through the multiplexing interface and the battery pack, so that the battery pack with a communication function is realized under the condition that the size of the battery pack is not changed, the problem that the battery pack is not matched with the existing electric tool or charger on the market in the prior art is solved, and convenience is brought to a user.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In the design of the electric tool, a port (also called a pole piece) of the electric tool has a data transmission function, and the battery pack can receive electric parameter information transmitted by the electric tool through a TV/RX multiplexing interface. The electrical parameter information of the power tool may specifically be one or a combination of an actual rotation speed, a current, a temperature, etc. of the motor of the power tool 110.
In the design of the charger, a port (also called a pole piece) of the charger has a data transmission function, and the battery pack can receive the electric parameter information transmitted by the charger through a TV/RX multiplexing interface. The electrical parameter information of the charger may specifically be one or a combination of an actual charging power, an actual output current, an actual output voltage, and the like of the charger.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A communication method suitable for a battery pack is characterized in that the battery pack is electrically connected with an electric tool or a charger through four ports, the four ports comprise a first port, a second port, a positive terminal and a negative terminal, the first port has a data sending function and a function of outputting a first state signal, the second port has a data receiving function and a function of outputting a second state signal, the first state signal comprises a battery pack ID, and the second state signal comprises a battery pack temperature or a state signal of a single battery in the battery pack; the method comprises the following steps:
the battery pack sends configuration information to the electric tool or the charger through the first port;
the battery pack receives electrical parameter information sent by the electric tool or the charger through a second port;
the battery pack further includes: a wireless communication module;
the method further comprises the following steps:
and the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
2. The method of claim 1, further comprising:
the battery pack upgrades a program in the electric tool or the charger through a data transmission function of the first port and a data reception function of the second port.
3. The method of claim 1, wherein the wireless communication module comprises at least one of:
bluetooth module, WIFI module.
4. The method of claim 1, wherein the battery pack ID is transmitted to the power tool or the charger through the first port when the power tool or the charger has a data transceiving function.
5. The method of claim 1, wherein the battery pack is linked to a terminal device, the method further comprising:
when the electric tool or the charger has a data transceiving function, the battery pack sends the parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
6. The method according to claim 5, wherein the battery pack transmits parameter information of the power tool or the charger to the terminal device through the wireless communication module, and comprises:
the battery pack sends the program version identification of the electric tool to the terminal equipment through the wireless communication module;
the method further comprises the following steps:
the battery pack receives an upgrading program sent by the terminal equipment through the wireless communication module, and sends the upgrading program to the electric tool through the first port.
7. A battery pack is characterized in that the battery pack is electrically connected with an electric tool or a charger through four ports, wherein the four ports comprise a first port, a second port, a positive terminal and a negative terminal;
the first port has a data sending function and a function of outputting a first state signal;
the second port has a data receiving function and a function of outputting a second state signal;
the first state signal comprises a battery pack ID, and the second state signal comprises a battery pack temperature or a state signal of a single battery in the battery pack;
the battery pack sends configuration information to the electric tool or the charger through the first port;
the battery pack receives electrical parameter information sent by the electric tool or the charger through a second port;
the battery pack further includes: a wireless communication module;
and the battery pack sends the electrical parameter information of the electric tool or the charger to the terminal equipment through the wireless communication module.
8. The battery pack according to claim 7, wherein the battery pack upgrades a program in the electric power tool or the charger by a data transmission function of the first port and a data reception function of the second port.
9. The battery pack of claim 7, wherein the wireless communication module comprises at least one of:
bluetooth module, WIFI module.
10. The battery pack according to claim 7, wherein the battery pack transmits the battery pack ID to the power tool or the charger through the first port when the power tool or the charger has a data transceiving function.
11. The battery pack according to claim 7, wherein the battery pack is linked with a terminal device, and when the power tool or the charger has a data transceiving function, the battery pack transmits parameter information of the power tool or the charger to the terminal device through the wireless communication module.
12. The battery pack according to claim 11,
the battery pack sends the program version identification of the electric tool to the terminal equipment through the wireless communication module;
the battery pack receives an upgrading program sent by the terminal equipment through the wireless communication module, and sends the upgrading program to the electric tool through the first port.
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| US11797469B2 (en) | 2013-05-07 | 2023-10-24 | Snap-On Incorporated | Method and system of using USB user interface in electronic torque wrench |
| CN110571483A (en) * | 2019-09-11 | 2019-12-13 | 苏州大可机械有限公司 | data communication transmission method of battery pack and battery pack |
| AU2021200856B2 (en) * | 2020-02-28 | 2022-12-01 | Snap-On Incorporated | Method and system of using usb user interface in electronic torque wrench |
| CN116979633A (en) * | 2022-04-28 | 2023-10-31 | 苏州宝时得电动工具有限公司 | Charging device, battery pack, external device, and data transmission system |
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| EP2014423A3 (en) * | 2007-06-14 | 2014-01-22 | Black & Decker Inc. | Battery pack identification system |
| CN202196398U (en) * | 2011-07-13 | 2012-04-18 | 青岛海信移动通信技术股份有限公司 | Power supply managing circuit of charging/ communication multiplex interface and digital electronic product |
| CN206195384U (en) * | 2016-10-21 | 2017-05-24 | 董普松 | Intelligent balanced charging and discharging circuit device of lithium cell group that can communicate |
| CN206259456U (en) * | 2016-12-23 | 2017-06-16 | 惠州市蓝微电子有限公司 | A kind of novel battery bag with communication function |
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| CN101593990A (en) * | 2008-02-13 | 2009-12-02 | 技领半导体(上海)有限公司 | Realize method, device and the integrated circuit of the intellectual power management of USB port |
| CN104795854A (en) * | 2014-11-20 | 2015-07-22 | 江苏东成机电工具有限公司 | Electric tool battery pack and charge-discharge system thereof |
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