Battery charging system with compatible connection devices

Abstract

The present invention discloses a battery charging system with a compatible connection device, and discloses a rechargeable battery, a charging device and a battery charging system that can realize the upgrade of battery management function and meet compatibility demands through the connection device. The product has a simple structure, relieves users from the complicated operation of setting parameters, and enables users to use new rechargeable batteries and charging devices interchangeably with old rechargeable batteries and charging devices, greatly improving the user's usage experience.

Description

[Technical Field]

[0001] The present invention relates to a battery charging system with a compatible connection device, and more particularly to a battery connection device, a charging connection device, a rechargeable battery, a charging device, and a battery charging system that have upgraded battery management functions and can meet compatibility needs. [Background technology]

[0002] Radio-controlled (RC) model equipment, such as vehicle models and flight models, requires the use of independent rechargeable batteries to power and operate. The variety of RC model equipment increases the number of battery types required. Compatible charging devices for different battery types are available on the market. For example, battery chemistries may include metal hydride / nickel (MH-Ni) batteries, ternary lithium (Li-Ni-Mn-O) batteries, polymer lithium (LiPo) batteries, lead-acid batteries, etc.

[0003] Batteries with different chemical types have significantly different charge and discharge characteristics. For example, the charging curve of a MH-Ni battery has two charging potential platforms, so users must set the battery's chemical type in the charging device when charging, and then adjust the charging device to the charging mode corresponding to the battery's chemical type. If users operate improperly and select a charging mode that does not match the battery's chemical characteristics, it will likely shorten the battery's lifespan and even cause damage to the battery.

[0004] To enable charging equipment to automatically identify battery characteristics, a solution used in the prior art is to use a battery management system (BMS). The battery management system is built into the battery and has many functions, such as evaluating the battery's state of charge, dynamically monitoring the operating state, and balancing monomer batteries. These batteries are expensive, have complex functions, and cannot adapt to the wide variety of battery characteristics in the field of model equipment. Another solution in the prior art involves providing a printed label on the battery and photographing it with a terminal to obtain battery information, or providing a radio frequency label on the battery and a radio frequency identification module in the charging equipment to obtain battery information. These solutions require users to perform additional charging operations and often require updated equipment, making them incompatible with conventional batteries or charging equipment. Summary of the Invention [Problem to be solved by the invention]

[0005] In response to the shortcomings of the prior art and market demands, the main objective of the present invention is to overcome the problems of the prior art that require upgrading of battery management functions and lack of compatibility, and to provide a battery connection device, charging connection device, rechargeable battery, charging device and battery charging system that can achieve functions such as storing setting information and detecting parameters during the insertion and connection of a rechargeable battery into an interface, are compatible with connection and charging by a conventional charger, have upgraded battery management functions and meet the compatibility demands. [Means for solving the problem]

[0006] Based on the same inventive concept, the present invention can be divided into two product types according to the improved features: First, the present invention provides a connection device that helps rechargeable batteries and charging devices to realize battery management function upgrades and meet compatibility needs; Second, the present invention provides a rechargeable battery, charging device, and battery charging system that can realize battery management function upgrades and meet compatibility needs through a connection device.

[0007] Below, we will explain the above two technical proposals in detail.

[0008] <Type 1> As a specific and preferred embodiment that can solve the above technical problems, according to a first aspect, the present invention provides a battery connection device that is placed on a rechargeable battery and can connect the chip to a matching charging device, and can be connected to a conventional charging interface without any problems.

[0009] Specifically, the battery connection device includes a first connection body, the first connection body including a first base, a first insertion structure provided at the front end of the first base, a first contact provided in the first insertion structure along the insertion direction, a chip fixed to the first base and having a first pin, and a second contact electrically connected to the first pin, the front end of the second contact being fixed to the rear side of the rear end of the first insertion structure so that the first insertion structure can be inserted without hindrance into another insertion part to be combined with it, and can move to the rear side of the rear end of the first insertion structure.

[0010] A second terminal hole is provided on the side of the first base in the same direction as the insertion direction, the second contact is fixedly provided within the second terminal hole, and the front end of the second terminal hole is located behind the rear end of the first insertion structure. The first connection body further includes an insert and a second conductive wire, the second contact is fixed to the insert and electrically connected to one end of the second conductive wire, and the other end of the second conductive wire is electrically connected to the first contact, which can be electrically connected to a negative electrode of a battery.

[0011] The chip is a memory that stores at least one parameter information related to the battery, and the chip further has a second pin that is electrically connected to the negative electrode of the battery via the first contact.

[0012] 2. The battery connection device of claim 1, wherein the first connection body further includes a first conductive wire provided at the rear end of the first base and electrically connected to the first contact, or further includes a third insertion structure provided at the rear end of the first base and from which the rear end of the first contact extends.

[0013] According to a second aspect, the present invention provides a charging connection device that is placed in a charging device, inserted into a matching battery, and can obtain information on the chip in the battery, and can be inserted into a conventional battery interface without any problems.

[0014] Specifically, a charging connection device includes a second connection body for fitting and inserting into the battery connection device described above, wherein the second connection body includes a second base, a second insertion structure provided on the second base, a third contact provided in the second insertion structure along the insertion direction and electrically connected to a charging circuit, an additional insertion structure provided on the second base along the insertion direction and located on one side of the second insertion structure, and a fourth contact provided in the additional insertion structure and electrically connected to the charging circuit, and the additional insertion structure is located outside the insertion direction of the second insertion structure so that the second connection body can be inserted into another insertion part that matches the second insertion structure.

[0015] <Type 2> As another specific preferred embodiment that can solve the above technical problem, according to a third aspect, the present invention provides a rechargeable battery that is equipped with a connector, can provide parameter information of a storage module to a matching charging device, and can be connected to a conventional charging interface without any problems.

[0016] Specifically, the present invention relates to a rechargeable battery, comprising: a battery body and a first connector; the first connector comprising: a first base having a first insertion structure at its front end and an extension structure at its side; a first contact disposed in the first insertion structure along the insertion direction and electrically connected to the battery body; a memory module disposed in the first base along the insertion direction and having a data end; and a second contact disposed in the extension structure and electrically connected to the data end; the memory module stores at least one parameter information related to the battery body, for providing the parameter information to a charging device via the second contact when the first connector is inserted; and the front end of the extension structure is located behind the rear end of the first insertion structure so that the first insertion structure can be smoothly inserted into another insertion part to be combined with it.

[0017] The first insertion structure is a male insertion member, and has a terminal hole along the insertion direction for accommodating the first contact, the extension structure has a terminal hole along the insertion direction for accommodating the second contact, and the memory module further has a ground end electrically connected to the negative electrode of the battery body.

[0018] A conductor is provided at the rear end of the first base, and the first contact is electrically connected to the battery body via the conductor.

[0019] The battery body is formed by connecting at least two battery monomers in series, and includes power connection terminals drawn from the positive and negative electrodes of the battery body, and balancing connection terminals drawn from the nodes of each battery monomer, to which the first contacts are electrically connected.

[0020] According to a fourth aspect, the present invention provides a charging device.

[0021] Specifically, the charging device includes a charging circuit, a processor, and a second connector, the second connector including a second base having a second insertion structure and an extension structure on one side of the second insertion structure, a third contact arranged in the second insertion structure along the insertion direction and electrically connected to the charging circuit, and a fourth contact arranged in the extension structure along the insertion direction and electrically connected to the processor, the processor is used to obtain at least one parameter information about the battery through the fourth contact, and the front end of the fourth contact is located in front of the front end of the third contact so that the fourth contact is electrically connected to another insertion part away from the second insertion structure.

[0022] The second insertion structure is a female insertion hole, the third contact is provided within the female insertion hole, the expansion structure is an expansion hole provided on the outer periphery of the female insertion hole, and the fourth contact is provided within the expansion hole.

[0023] The processor is used to control the output power of the charging circuit based on the parameter information.

[0024] The charging circuit includes a charging module and a balancing charging module electrically connected to the third contact.

[0025] According to a fifth aspect, the present invention provides a battery charging system.

[0026] Specifically, a battery charging system includes a rechargeable battery and a charging device, wherein the rechargeable battery includes a battery body and a first connector, and the charging device includes a charging circuit, a processor, and a second connector;

[0027] the first connector includes a first base, a first insertion structure provided at the front end of the first base, an extension structure provided at the side of the first base, a first contact provided in the first insertion structure along the insertion direction and electrically connected to the battery body, a memory module provided in the first base, and a second contact provided in the extension structure along the insertion direction and electrically connected to a data end of the memory module;

[0028] the second connector includes a second base, a second insertion structure provided on the second base, an extension structure provided on the second base and located on one side of the second insertion structure, a third contact provided in the second insertion structure along the insertion direction and electrically connected to the charging circuit, and a fourth contact provided in the extension structure along the insertion direction and electrically connected to the processor;

[0029] The memory module stores at least one parameter information related to the battery body, and the second contact and the fourth contact are electrically connected when the first connector and the second connector are inserted so that the processor can obtain the parameter information. The front end of the extension structure is located behind the rear end of the first insertion structure so that the first insertion structure can be inserted smoothly into another insertion part that is combined with it, and the front end of the fourth contact is located in front of the front end of the third contact so that the fourth contact is electrically connected to the second contact in the extension structure. [Effects of the Invention]

[0030] in particular, <Technical effect of the invention> Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] (1) In this invention, the battery connection device is provided with a first insertion structure for charging, a chip, and a second contact connected to the chip, thereby realizing additional functions such as storing setting information and detecting parameters during the rechargeable battery's insertion and connection to the interface. Furthermore, the provision of the second contact allows the first insertion structure to be smoothly inserted into another insertion part that can be combined with it, and is compatible with connection and charging using a conventional charger, allowing users to use new rechargeable batteries and charging devices interchangeably with old rechargeable batteries and charging devices, making it easier for users to accept battery function upgrades.

[0032] Furthermore, in the present invention, the rechargeable device automatically obtains battery parameter information and sets the charging mode, eliminating the need for users to manually set parameter information, avoiding the risk of battery damage caused by incorrect settings, and greatly improving the user experience.

[0033] (2) In the present invention, a memory module is provided in the first connector of the rechargeable battery, and a first insertion structure and an extension structure are arranged in the first connector, the first insertion structure is for charging connection, and the extension structure can provide the first connector with the function of transmitting parameter information in the memory module.

[0034] Furthermore, the charging device of the present invention is provided with a second connector, and a second insertion structure and an extension structure are fitted together in the second connector, and when the user performs charging insertion, the first insertion structure and the second insertion structure are fitted together, and the extension structure and the extension structure are fitted together, so that the charging device automatically obtains battery parameter information and sets the charging mode, eliminating the user's need to manually set parameter information, avoiding the risk of battery damage due to setting errors, and greatly improving the user experience. Furthermore, the structural design of the first and second connectors makes the battery charging system compatible, i.e., rechargeable batteries are compatible with conventional charging interfaces, and the charging device is compatible with conventional battery interfaces.

[0035] The present invention will be further described below with reference to the drawings. [Brief explanation of the drawings]

[0036] [Figure 1] FIG. 1 is a structural schematic diagram of a first embodiment of the present invention. [Figure 2] 1 is a schematic diagram of a circuit structure according to a first embodiment of the present invention; [Figure 3] 1 is a perspective structural schematic diagram of a first mode of Example 1 of the present invention. FIG. [Figure 4] 1 is a schematic diagram of an insertion structure of a first connection body according to a first embodiment of the present invention; FIG. [Figure 5] FIG. 2 is a schematic diagram of the insertion structure of the second connection body of the first embodiment of the present invention. [Figure 6] FIG. 2 is a schematic perspective view of a second embodiment of the first embodiment of the present invention. [Figure 7] FIG. 2 is a perspective structural schematic diagram of a third mode of the first embodiment of the present invention. [Figure 8] FIG. 2 is a structural schematic diagram of a battery charging system according to a second embodiment of the present invention; [Figure 9] 2 is a circuit structure schematic diagram of a battery charging system according to a second embodiment of the present invention; [Figure 10] FIG. 2 is a structural schematic diagram of a rechargeable battery according to a second embodiment of the present invention. [Figure 11] FIG. 2 is a structural schematic diagram of a charging device according to a second embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0037] In order to better explain the objectives, technical solutions and advantages of the present invention, the specific embodiments of the present invention will be described in more detail below in conjunction with the drawings and examples. The following examples are used to explain the present invention, but are not used to limit the scope of the present invention.

[0038] Example 1 As shown in FIG. 1, a battery connection device according to a first embodiment of the present invention includes a first connection body A2. The first connection body A2 includes a first base A23, a first insertion structure A231, a first contact A21, a second contact A22, and a tip A3. The first insertion structure A231 is located at the front end of the first base A23, and the first contact A21 is located on the first insertion structure A231 along the insertion direction. This structure is used to generally insert and connect the lead-out end of a battery to a charging device or electrical device. In other words, the first insertion structure A231 can be inserted into another insertion part that is combined with it.

[0039] These insertion components have a standardized insertion structure for general charging devices or electrical devices. The second contact A22 is electrically connected to the chip A3 and is used to connect the pins of the chip A3 to the charging device or electrical device to realize the set function of the chip A3. The second contact A22 may be fixed to the first base A23 or may be movable within a predetermined range relative to the first base A23.

[0040] In the first embodiment, specifically, in the installation mode in which the second contact A22 is fixed, the front end of the second contact A22 is located behind the rear end of the first insertion structure A231 in the insertion direction. As can be seen from this, when the first insertion structure A231 is inserted and fitted with an insertion part of a charging device or an electrical device, the front end of the second contact A22 does not extend into the radial space of the first insertion structure A231, and therefore does not interfere with the first insertion structure A231.

[0041] In the first embodiment, specifically, in the installation mode in which the second contact A22 is movable, the front end of the second contact A22 can move between the front and rear ends of the first insertion structure A231 in a normal state, and when the first insertion structure A231 is inserted and fitted with an insertion part of a charging device or an electrical device, the front end of the second contact A22 moves to the rear side of the rear end of the first insertion structure A231 according to the user's operation or insertion movement. Since the second contact A22 moves out of the radial space of the first insertion structure A231 during insertion, it does not interfere with the first insertion structure A231.

[0042] The battery connection device of Example 1 is disposed in a rechargeable battery, and in use, the rechargeable battery can be inserted into a conventional charging device or electrical device for conductive connection via the first insertion structure A231 of the first connection body A2, as shown in Figure 1. The rechargeable battery also simultaneously achieves functional connection between the tip A3 and the charging device via the second contact A22 of the first connection body A2.

[0043] Continuing to refer to FIG. 1 , a charging connection device according to a first embodiment of the present invention is shown. The charging connection device is disposed within a charging device, which includes a charging circuit A4. The charging connection device includes a second connection body A5. The second connection body A5 is adapted to be fitted and inserted into the battery connection device of the first embodiment. The second connection body A5 includes a second base A53, a second insertion structure A531, a third contact A51, a processor A41, an additional insertion structure A532, and a fourth contact A52. The second insertion structure A531 is disposed on the second base A53, and the third contact A51 is disposed within the second insertion structure A531 and is electrically connected to the charging circuit A4 for receiving a battery with a conventional interface.

[0044] As can be seen, the battery connection device of Example 1 can be inserted into the second insertion structure A531 via its first insertion structure A231. The additional insertion structure A532 is provided on the second base A53 and is located outside the insertion direction of the second insertion structure A531. The fourth contact A52 is provided in the additional insertion structure A532 along the insertion direction and is conductively connected to the processor A41 in the charging circuit A4. Because the additional insertion structure A532 is located on one side of the second insertion structure A531, batteries with conventional interfaces can be inserted without any problems and can achieve the charging function. The battery connection device of Example 1 is inserted into a charging device and can simultaneously achieve the charging function and the function of the chip A3.

[0045] As shown in FIG. 2, in Example 1, the rechargeable battery is an RC model battery. The RC model battery is composed of three battery monomers A11 and is provided with a power connection terminal A12 and a balancing connection terminal A13. The power connection terminals A12 are respectively drawn from the positive and negative terminals of the battery body A1 and are used for charging by a charging device and for supplying power to the RC model. The balancing connection terminals A13 are respectively drawn from the nodes of each battery monomer A11 in the battery body A1. In the battery connection device in Example 1, each first contact A21 is connected to the balancing connection terminal A13 of the battery body A1 in a one-to-one correspondence. In other words, the battery connection device is a battery balancing charging connector.

[0046] As shown in FIG. 2, the chip A3 in this embodiment is a memory and stores parameter information related to the battery A1. The parameter information may include parameter information of a unique identification code, battery capacity, the number of monomers, or the battery's chemical type. The charging device automatically selects a corresponding charging mode based on the acquired parameter information, thereby eliminating the need for the user to configure the charging device. Furthermore, the chip A3 has a first pin A31 and a second pin A32. The first pin A31 is a data terminal for transmitting data, i.e., a DATA terminal. The second pin A32 is a ground terminal for grounding the circuit, i.e., a GND terminal.

[0047] The second contact A22 is electrically connected to the first pin A31 of the chip A3, and the second pin A32 of the chip A3 is electrically connected to the first contact A21 marked "1(-)", which is electrically connected to the negative electrode node of the battery body A1, and the second pin A32 of the memory is electrically connected to the negative electrode of the battery body A1. When the rechargeable battery is inserted into the charging device, the ground terminal of the processor A41 is connected to the negative electrode of the balancing connection terminal A13 of the battery body A1, so that the chip A3 can be connected to the second pin A32 of the chip A3 through the first contact A21 marked "1(-)", thereby eliminating the need for more independent second contacts A22 and achieving the goals of saving the number of terminals installed and reducing the size of the connector.

[0048] As can be seen from this, in Example 1, by providing the chip A3 in the battery connection device, not only can the functions of the chip A3, such as storing parameter information and allowing the charging device to automatically select a charging mode based on the parameter information, be realized, but the battery connection device is also compatible with conventional charging devices, electrical devices, and batteries.

[0049] Aspect 1 of Example 1 As shown in FIG. 3, this embodiment shows a charging connection device according to a first aspect. The first connection body A2 includes a first base A23, a first insertion structure A231, a first contact A21, a second contact A22, and a tip A3. The tip A3 is disposed inside the first base A23. The first insertion structure A231 is a male insertion post disposed at the front end of the first base A23. The first insertion structure A231 is provided with four terminal holes along the insertion direction. Four first contacts A21 are provided, each fixedly disposed in the terminal hole. Another terminal hole is provided on one side of the base, and a second contact A22 is fixedly disposed in the terminal hole. The front end of the second contact A22 does not extend to the rear end of the male insertion post. Four first conducting wires A14 are provided at the rear end of the first base A23. Each first conducting wire A14 can be connected to a balancing connection end A13.

[0050] Continuing to refer to FIG. 3, in the first aspect of this embodiment, the second connection body A5 specifically includes a second base A53, a second insertion structure A531, a third contact A51, an additional insertion structure A532, and a fourth contact A52. The second insertion structure A531 is a female insertion hole, and four third contacts A51 are arranged in the female insertion hole along the insertion direction. The male insertion posts and the female insertion hole are interlocked with each other. An additional insertion structure A532, i.e., an additional insertion hole, is arranged on one side of the female insertion hole. The fourth contact A52 is arranged in the additional insertion structure A532. The four third contacts A51 are conductively connected to the charging circuit A4. The fourth contact A52 is conductively connected to the processor A41. The front ends of the fourth contacts A52 are located in front of the front ends of the third contacts A51.

[0051] As can be seen, the second contact A22 is fixedly provided at the rear side of the first insertion structure A231, so that the conventional charging interface of the first insertion structure A231 is realized by the second contact A22. 91 The fourth contact A52 is provided in the additional insertion structure A532, thereby preventing the conventional battery interface of the second insertion structure A531 from being obstructed. 92 In addition, the front end of the fourth contact A52 is positioned forward and can be fitted into the second contact A22 to make conductive contact.

[0052] FIG. 4 shows the first embodiment of the first connecting body A2 as a conventional charging interface. 91 The first insertion structure A231 of the first connecting body A2 is similar to the conventional charging interface. 91 The first contacts A21 are fully inserted into the conventional charging interface. 91 The second contact A22 is provided on one side of the first base A23, so that it does not interfere with the insertion operation of the first insertion structure A231.

[0053] FIG. 5 shows the second connection body A5 of the first embodiment and the conventional battery interface. 92 The second insertion structure A531 of the second connection body A5 is similar to the conventional battery interface. 92 Each third contact A51 can be fully inserted into the conventional battery interface. 92 The additional insertion structure A532 is provided on only one side of the second base A53, and is different from the conventional battery interface. 92 It does not interfere with the insertion and attachment operation.

[0054] Aspect 2 of Example 1 As shown in FIG. 6, this is a charging connection device according to a second aspect of this embodiment. The first connection body A2 includes a first base A23, a first insertion structure A231, a first contact A21, a second contact A22, an insert A84, a second conducting wire A85, and a chip A3. The first insertion structure A231 corresponds to the first aspect of this embodiment. The insert A84 has a terminal hole, and the second contact A22 is fixedly mounted in the terminal hole. The chip A3 is fixedly mounted inside the first base A23. The first pin A31 of the chip A3 is connected to the second contact A22 via the second conducting wire A85. Both ends of the second conducting wire A85 are fixed to the first base A23 and the insert A84, respectively. The insert body A84 can move within the length range of the second conducting wire A85, can move to the rear side of the rear end of the first insert structure A231, and can be inserted into the second connecting body A5 when the first connecting body A2 and the second connecting body A5 are inserted into each other.

[0055] Aspect 3 of Example 1 As shown in Figure 7, this embodiment shows a battery connection device. The first connection body A2 includes a first base A23, a first insertion structure A231, a first contact A21, a second contact A22, a chip A3, and a third insertion structure A86. The structure of the first connection body A2 is substantially identical to the first embodiment of this embodiment. The third insertion structure A86 is provided at the rear end of the first base A23. Each of the first contacts A21 extends into the third insertion structure A86. The third insertion structure A86 is used to connect to the conventional battery interface 91, thereby providing the conventional battery interface 91 with the functionality of the chip A3.

[0056] Example 2 As shown in Figure 8, a battery charging system according to a second embodiment of the present invention includes a rechargeable battery according to the above embodiment and a charging device according to the above embodiment.

[0057] 8 and 9 show a battery charging system of Example 2, and FIG. 10 shows a rechargeable battery of Example 2. The battery charging system in FIG. 8 includes the rechargeable battery in FIG. 10. The rechargeable battery includes a battery body B1, a power connector B16, and a first connector B2. The battery body B1 is formed by connecting three battery monomers B11 in series, and has two power connection ends B12 drawn from the positive and negative electrodes of the battery body B1, and four balancing connection ends B13 drawn from the nodes of each battery monomer B11.

[0058] The power connector B16 is connected to each power connection end B12 via a conductor B15, and the first connector B2 is connected to each balancing connection end B13 via a conductor B15. In order to automatically identify battery information and select a corresponding charging mode, the first connector B2 has, as an insulating part, a first base B23, a first insertion structure B231 provided at the front end of the first base B23, and an extension structure B232 provided at the side of the first base B23.

[0059] Specifically, the first insertion structure B231 is a male insertion member and has four terminal holes formed along the insertion direction, with a first contact B21 fixedly provided in each terminal hole, and each first contact B21 is connected to the conductor B15 at the rear end of the first connector B2 and connected to the balancing connection end B13 of the battery body B1. The extension structure B232 has one terminal hole formed along the same insertion direction, with a second contact B22 fixedly provided in the terminal hole. A chamber is provided in the first base B23, and a memory module B30 is fixedly provided inside the chamber. The memory module B30 is a memory chip.

[0060] The memory chip has a data end and a ground end, and stores parameter information of a unique identification code, a battery capacity, a number of monomers, or a battery chemistry type. The data end is conductively connected to the second contact B22, and the ground end is conductively connected to the first contact B21 marked with "1."

[0061] The first contact B21 marked with "1" is conductively connected to the negative electrode of the battery body B1, and the first contacts B21 marked with "1" to "4" are connected to nodes other than the negative electrode of each battery monomer B11. To ensure that the rechargeable battery of this embodiment can be inserted into the charging device of this embodiment and can be inserted in a manner compatible with the conventional charging interface 92, as shown in Figure 10, in the rechargeable battery of this embodiment, the first insertion structure B231 is configured to be inserted into the conventional charging interface 92, in other words, the first insertion structure B231 and the insertion portion of the conventional battery interface 91 are consistent.

[0062] The extension structure B232 is located at the side of the first base B23, so that the contact direction of the second contact B22 disposed therein does not overlap with the insertion direction of the first insertion structure B231. The front end of the extension structure B232 is located behind the rear end of the first insertion structure B231, i.e., the front end of the second contact B22 within the extension structure B232 is also located behind the rear end of the first insertion structure B231. In other words, when another matching insertion structure, such as the second connector B5 or a conventional charging interface 92, is fitted and inserted into each side of the first insertion structure B231, the extension structure B232 does not interfere with the first insertion structure B231.

[0063] 8 and 9 show the battery charging system of the second embodiment, and Fig. 10 shows the rechargeable battery of the second embodiment. The battery charging system in Fig. 8 includes a charging device in Fig. 11. The charging device includes a charging circuit B4, a processor B41, a main charging port B42, and a second connector B5.

[0064] The charging circuit B4 includes a charging module and a balancing module. The charging module is used to charge the positive and negative electrodes of the battery body B1, and the balancing module is used to balance the battery capacity of each battery monomer B11. The main charging port B42 is conductively connected to the charging module. The power connector B16 of the rechargeable battery of this embodiment can be inserted into and conductively connected to the main charging port B42 to charge the battery. The second connector B5 is conductively connected to the balancing module. The first connector B2 of the rechargeable battery of this embodiment can be inserted into and conductively connected to the second connector B5 to achieve battery balancing charging. To automatically identify battery information and select the corresponding charging mode, the second connector B5 has an insulating part including a second base B53, a second insertion structure B531 provided at the front end of the first base B23, and an extension structure B532 provided on the second base B53 and located on one side of the second insertion structure B531.

[0065] Specifically, the second insertion structure B531 is a female insertion hole, and the expansion structure B532 is an expanded insertion hole located on one side of the female insertion hole. Four third contacts B51 are provided, disposed within the female insertion hole, and conductively connected to the charging circuit B4. One fourth contact B52 is provided, disposed within the expanded insertion hole, and conductively connected to the processor B41. The processor B41 is connected to and controls the charging circuit B4, and can obtain battery parameter information transmitted from the fourth contact B52. Based on the obtained battery parameter information, the processor B41 can select a corresponding charging mode and control the charging circuit B4.

[0066] In the battery charging system of Example 2, when the first connector B2 and the second connector B5 are connected to each other, the first insertion structure B231 and the second insertion structure B531 are fitted and fixed to each other, and each first contact B21 is conductively connected to each third contact B51 in one-to-one correspondence. As can be seen, the extension structure B532 is provided on one side of the second insertion structure B531 and does not interfere with the insertion of the first connector B2.

[0067] In order to ensure that the charging device of this embodiment can be inserted into the rechargeable battery of this embodiment and can be inserted in a manner compatible with the conventional battery interface 91, as shown in FIG. 10, in the charging device of this embodiment, the second insertion structure B531 is configured to be inserted into the conventional battery interface 91, in other words, the second insertion structure B531 and the insertion part structure of the conventional charging interface 92 are the same.

[0068] In addition, the extension structure B532 is located at the side of the second insertion structure B531, i.e., the fourth contact B52 inside the extension structure B532 does not affect the insertion of the second insertion structure B531. In addition, the front end of the fourth contact B52 is located in front of the front end of the third contact B51, i.e., when a compatible insertion structure, such as the first connector B2 or a conventional battery interface 91, is inserted into each inner surface of the second insertion structure B531, the fourth contact B52 does not interfere with the insertion process. In addition, in the insertion direction, the fourth contact B52 passes beyond the first insertion structure B231 and makes conductive contact with the second contact B22.

[0069] According to an example of the use process of this embodiment of the present invention, when a user has the battery charging system of this embodiment, i.e., the rechargeable battery and charging device of this embodiment, the user only needs to insert and connect the power connector B16 to the main charging port B42 and the first connector B2 to the second connector B5 to complete the charging connection operation of the rechargeable battery. In addition, the rechargeable battery not only conductively connects the balancing connection end B13 to the charging device, but also conductively connects the memory module B30 to the processor B41 of the charging device, and parameter information such as the unique identification code, battery capacity, number of monomers, or battery chemistry type in the memory module B30 is provided to the processor B41, and the processor B41 automatically selects the charging mode, eliminating the need for the user to manually select the charging mode by operating the charging device.

[0070] If a user has the rechargeable battery of this embodiment but does not have the charging device of this embodiment, they can charge it by inserting and connecting the first connector B2 with the conventional charging interface 92, and the extension structure B232 of the first connector B2 will not constitute an obstruction to the insertion. If a user has the charging device of this embodiment and another conventional battery, they can insert and connect the conventional battery interface 91 of the battery with the second connector B5, manually set the battery parameters, and charge.

[0071] It can be understood that, according to another embodiment of the present invention, the rechargeable battery may also use a female insertion structure. Correspondingly, the charging device of this embodiment may also use a male insertion structure. According to another embodiment of the present invention, the storage module B30 may also be provided at the power connection end B12, rather than at the balancing connection end B13 in this embodiment, and accordingly, the extension structure B232 is provided at the corresponding battery interface, and the expansion structure B532 is provided at the corresponding charging interface. According to another embodiment of the present invention, the first connector B2 may also be integrally provided on the battery body B1, rather than being connected via the conductor B15 in this embodiment.

[0072] As can be appreciated, in other embodiments of the present invention, the number of third contacts B51 in the charging device may be four or more, for example, the second connector B5 may be provided with seven third contacts B51, which can accommodate a battery body B1 having 2-6 monomers.

[0073] The battery charging method of Example 2 can be applied to a battery charging system, including a rechargeable battery provided with a first connector B2 and a charging device provided with a second connector B5. The battery charging method includes providing the rechargeable battery with a storage module B30 pre-stored with parameter information, such as a unique identification code, battery capacity, number of monomers, or battery chemistry type, for the rechargeable battery. The charging device is configured to adjust charging power based on the parameter information. The first connector B2 and the second connector B5 are configured to provide the parameter information in the storage module B30 to the charging device when plugged into each other. The first connector B2 is further configured to be compatible with other charging interfaces that do not have terminals for transmitting parameter information. The second connector B5 is compatible with other battery interfaces that do not have terminals for transmitting parameter information.

[0074] It should be noted that the terms "first," "second," and "third" are for descriptive purposes only and should not be understood as indicating or suggesting the relative importance or implicitly indicating the number of technical features shown. Thus, a feature qualified as "first," "second," or "third" may explicitly or implicitly include at least one feature.

[0075] The above examples mainly illustrate the basic principles, main features and advantages of the present invention. Those skilled in the art will understand that the present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are merely illustrative of the principles of the present invention, and the present invention can also be modified and improved in various ways without departing from the spirit and scope of the present invention, and all of these modifications and improvements are within the scope of the present invention that is sought to be protected.

Claims

1. A battery connection device including a first connection body, the first connection body comprising: First base and a first insertion structure provided at a front end of the first base; a first contact provided in the first insertion structure along the insertion direction; a chip fixedly mounted on the first base and having a first pin; a second contact electrically connected to the first pin; The front end of the second contact is fixed to the rear side of the rear end of the first insertion structure or can be moved to the rear side of the rear end of the first insertion structure so that the first insertion structure can be inserted into another insertion part to be combined with it without any hindrance; It is defined as follows: The insertion direction is a direction in which the first insertion structure is inserted into another insertion part; A battery connection device characterized in that, when inserted, the end closest to the other insertion part is a front end, and the other end opposite to the front end is a rear end.

2. The battery connection device of claim 1, characterized in that a second terminal hole is provided on the side of the first base in the same direction as the insertion direction, the second contact is fixedly provided within the second terminal hole, and the front end of the second terminal hole is located behind the rear end of the first insertion structure.

3. 2. The battery connection device according to claim 1, wherein the first connection body further includes an insert and a second conductive wire, the second contact is fixed to the insert and electrically connected to one end of the second conductive wire through the tip, and the other end of the second conductive wire is electrically connected to the first contact, which can be electrically connected to a negative electrode of a battery.

4. The first connecting body is a first conductive wire provided at a rear end of the first base and electrically connected to the first contact; Or, 2. The battery connection device according to claim 1, further comprising a third insertion structure, the third insertion structure being provided at the rear end of the first base, the rear end of the first contact extending to the third insertion structure.

5. A charging connection device including a second connection body for fitting and inserting into the battery connection device according to any one of claims 1 to 4, The second connecting body is The second base, a second insertion structure provided on the second base; a third contact provided in the second insertion structure along the insertion direction and electrically connected to the charging circuit; an additional insertion structure provided on the second base along the insertion direction and positioned on one side of the second insertion structure; a fourth contact provided in the additional insertion structure and electrically connected to the charging circuit; A charging connection device characterized in that the additional insertion structure is located radially outside the second insertion structure so that the second connection body can be inserted into the battery connection device or another insertion part that matches the second insertion structure.

6. A rechargeable battery, comprising a battery body and a first connector, the first connector comprising: a first base having a first insertion structure at a front end and an extension structure at a side; a first contact provided in the first insertion structure along the insertion direction and electrically connected to the battery body; a storage module disposed within the first base along the insertion direction and having a data end; a second contact disposed within the extension structure and electrically connected to the data end; the storage module stores at least one parameter information related to the battery body for providing the parameter information to the charging device through the second contact when the first connector is inserted; and the front end of the extension structure is located behind the rear end of the first insertion structure so that the first insertion structure can be smoothly inserted into another insertion part to be combined with it; The insertion direction is a direction in which the first insertion structure is inserted into another insertion part; A rechargeable battery, characterized in that, when inserted, the end closest to the other insertion part is a front end, and the other end opposite to the front end is a rear end.

7. The rechargeable battery of claim 6, wherein the first insertion structure is a male insertion member and has a terminal hole along the insertion direction for receiving the first contact, the extension structure has a terminal hole along the insertion direction for receiving the second contact, and the memory module further has a ground end electrically connected to the negative electrode of the battery body.

8. 7. The rechargeable battery according to claim 6, wherein a conductor is provided at the rear end of the first base, and the first contact is electrically connected to the battery body via the conductor.

9. the battery body is formed by connecting at least two battery monomers in series, power connection terminals drawn from the positive and negative electrodes of the battery body; 7. The rechargeable battery according to claim 6, further comprising: a balancing connection terminal drawn out from a node of each battery monomer, to which the first contact is electrically connected.

10. A charging device comprising a charging circuit, a processor, and a second connector, the second connector comprising: a second base having a second insertion structure and an extension structure on one side of the second insertion structure; a third contact provided in the second insertion structure along the insertion direction and electrically connected to the charging circuit; a fourth contact disposed within the extension structure along the insertion direction and electrically connected to the processor; the processor is used to obtain at least one parameter information about the battery through a fourth contact, and a front end of the fourth contact is located in front of a front end of the third contact such that the fourth contact is electrically connected to another insertion part away from the second insertion structure; the insertion direction is a direction in which the second insertion structure receives another insertion part; The charging device is characterized in that, when inserted, the end closest to the other insertion part is the front end, and the other end opposite to the front end is the rear end.

11. 11. The charging device of claim 10, wherein the second insertion structure is a female insertion hole, the third contact is provided within the female insertion hole, the expansion structure is an expansion hole provided on the outer periphery of the female insertion hole, and the fourth contact is provided within the expansion hole.

12. 11. The charging device of claim 10, wherein the processor is adapted to control the output power of the charging circuit based on the parameter information.

13. 11. The charging device of claim 10, wherein the charging circuit includes a charging module and a balance charging module electrically connected to the third contact.

14. A battery charging system including a rechargeable battery and a charging device, The rechargeable battery includes a battery body and a first connector, and the charging device includes a charging circuit, a processor, and a second connector; the first connector includes: a first base; a first insertion structure provided at a front end of the first base; an extension structure provided at a side of the first base; a first contact provided in the first insertion structure along the insertion direction and electrically connected to the battery body; a memory module provided in the first base; and a second contact provided in the extension structure along the insertion direction and electrically connected to a data end of the memory module; the second connector includes: a second base; a second insertion structure provided on the second base; an extension structure provided on the second base and located on one side of the second insertion structure; a third contact provided in the second insertion structure along the insertion direction and electrically connected to the charging circuit; and a fourth contact provided in the extension structure along the insertion direction and electrically connected to the processor; The memory module stores at least one parameter information related to the battery body, and the second contact and the fourth contact are electrically connected when the first connector and the second connector are inserted so that the processor can obtain the parameter information. The front end of the extension structure is located behind the rear end of the first insertion structure so that the first insertion structure can be inserted into another insertion part to be combined with it without any hindrance. The front end of the fourth contact is located in front of the front end of the third contact so that the fourth contact is electrically connected to the second contact in the extension structure. the insertion direction is a direction in which the first insertion structure is inserted into the second insertion structure; A battery charging system characterized in that, when inserted, the end of the first connector closest to the second connector is the front end, the other end opposite the front end is the rear end, and the front end of the second connector is the same end as the front end of the first connector.

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