A charging management device of a battery compartment and a terminal device

Abstract

This application discloses a charging management device for a battery compartment and a terminal device, belonging to the field of terminal device technology. The device includes: a charging management module with i battery compartments, connected to an external power supply, used to set the operating parameters of each battery compartment and detect the charging and discharging parameters of each rechargeable battery in each compartment. Simultaneously, during the control of the charging and discharging state of each battery compartment, the module adjusts the charging and discharging state of each rechargeable battery with the goal of balancing the voltage of each individual battery cell. N rechargeable batteries are connected in series in the battery compartments. A main control module is used to select either the external power supply or at least one of the i battery compartments to charge the terminal device. This device solves the technical problems in the prior art where terminal devices need to be equipped with separate independent chargers, and the inability to guarantee the safety and reliability of the terminal device during charging.

Description

Technical Field

[0001] This invention relates to the field of terminal equipment technology, and in particular to a charging management device for a battery compartment and a terminal device. Background Technology

[0002] In daily life, we see many terminal devices, some of which consume a lot of power and typically require an internal power supply module for charging. These devices require a separate charger, necessitating users to carry the charger with them, resulting in a poor user experience. Furthermore, the power supply module in these devices usually consists of multiple rechargeable batteries. If there are batteries with significant voltage differences within the module, short circuits and mutual charging can occur, posing a serious safety hazard. Currently, there is no effective solution to this technical problem.

[0003] Therefore, how to make terminal devices not require a separate charger, while still ensuring the safety and reliability of the terminal devices during the charging process, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a charging management device for a battery compartment and a terminal device, to solve the technical problems in the prior art where the terminal device needs to be equipped with a separate independent charger, and the safety and reliability of the terminal device cannot be guaranteed during the charging process. The specific solution is as follows: To address the aforementioned problems, the present invention provides a charging management device for a battery compartment, built into a terminal device, comprising: A charging management module with i battery compartments is connected to an external power supply. It is used to set the operating parameters of each battery compartment and detect the charging and discharging parameters of each rechargeable battery in each battery compartment. At the same time, in the process of controlling the charging and discharging state of each battery compartment, the charging and discharging state of each rechargeable battery is adjusted with the goal of balancing the voltage of each individual battery cell. There are N rechargeable batteries connected in series in the battery compartment; i≥1; N≥2. The main control module, connected to the charging management module, is used to select either the external power supply or at least one of the i battery compartments to charge the terminal device.

[0005] Preferably, the charging management module includes: The charging management chip module is used to set the charging and discharging parameters of each battery compartment; The battery balancing chip module is used to detect the charging and discharging parameters of each rechargeable battery in each battery compartment. At the same time, in the process of controlling the charging and discharging state of each battery compartment, the module aims to balance the individual cell voltages of each rechargeable battery in each battery compartment and adjusts the charging and discharging state of each rechargeable battery.

[0006] Preferably, the number of charging management chips in the charging management chip module is i, the number of battery balancing chips in the battery balancing chip module is i, and each battery compartment corresponds to one charging management chip and one battery balancing chip.

[0007] Preferably, the charging management module further includes a pull-up resistor connected to the enable terminal of the charging management chip module.

[0008] Preferably, the main control module includes: The path building submodule is connected to the charging management module and is used to build a power supply path between the external power supply and the main control module to obtain a first power supply path, and to build i power supply paths between the battery compartment and the main control module to obtain i second power supply paths. The main control submodule, connected to the path construction submodule, is used to select the first power supply path or at least select one power supply path from i second power supply paths to charge the terminal device.

[0009] Preferably, the path building submodule includes: A first diode is used to control the conduction state of the first power supply path; i second diodes are used to control the conduction state of i second power supply paths, respectively.

[0010] Preferably, the main control submodule includes: The main control chip is used to select the first power supply path or at least select one power supply path from i second power supply paths to charge the terminal device; The first DC-DC conversion unit is used to convert the output voltage of the external power supply into the operating voltage required by the main control chip. The second DC-DC conversion unit is used to convert the output voltage of the i battery compartments into the operating voltage required by the terminal device; An analog-to-digital converter is used to convert the signals output by the charging management module and the path building submodule into digital signals that can be recognized by the main control chip.

[0011] Preferably, each battery compartment includes: a compartment body capable of accommodating N rechargeable batteries connected in series, N top cover springs are provided above the compartment body, and N bottom compartment springs are provided below the compartment body, with the N top cover springs and N bottom compartment springs elastically clamping the N rechargeable batteries in a one-to-one correspondence.

[0012] Preferably, the compartment includes: a battery compartment top cover and a battery compartment bottom cover. A bottom cover PCB board is provided at the bottom of the battery compartment bottom cover. The bottom cover PCB board is provided with N bottom cover springs, M first conductive posts, and M second conductive posts. The length of the first conductive posts is greater than the length of the second conductive posts. A top cover PCB board is provided on the battery compartment top cover. The top cover PCB board is provided with N top cover springs and M conductive probes. When the battery compartment top cover and the battery compartment bottom cover are closed, the M conductive probes elastically abut against the M first conductive posts, respectively, to guide the electrical energy of the N rechargeable batteries into the bottom cover PCB board through the M second conductive posts. M is set according to the series connection of the N rechargeable batteries.

[0013] To address the aforementioned technical problems, the present invention also provides a terminal device, including a charging management device for a battery compartment as disclosed above.

[0014] Beneficial Effects: The charging management device for the battery compartment provided by this invention is built into the terminal device, and includes a charging management module and a main control module. The charging management module has i battery compartments and is connected to an external power supply. Through the charging management module, not only can the operating parameters of each battery compartment be set and the charging and discharging parameters of each battery in each compartment be detected, but also, during the control of the charging and discharging state of each battery compartment, the charging management module can adjust the charging and discharging state of each battery with the goal of balancing the voltage of each individual battery cell. This eliminates voltage differences between the batteries in the battery compartments and ensures the safety and reliability of the terminal device during charging. Furthermore, the main control module can select either the external power supply or at least one of the i battery compartments to charge the terminal device. With this configuration, users do not need to carry a charger to charge the terminal device, thereby further improving the user experience when using the terminal device.

[0015] Correspondingly, the terminal device provided by the present invention also has the above-mentioned beneficial effects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A schematic diagram of a charger for use with terminal devices; Figure 2 This is a schematic diagram of welding multiple rechargeable batteries together to form a power supply module for a terminal device. Figure 3 This is a structural diagram of a battery compartment charging management device provided in an embodiment of the present invention; Figure 4 This is a structural diagram of a charging management module provided in an embodiment of the present invention; Figure 5 This is an internal structural diagram of a battery compartment charging management device provided in an embodiment of the present invention; Figure 6 A diagram showing the current flow when charging the first battery compartment; Figure 7 A diagram showing the current during the discharge of the first battery compartment; Figure 8 This is a structural diagram of a main control module provided in an embodiment of the present invention; Figure 9 This is an internal structural diagram of another battery compartment charging management device provided in an embodiment of the present invention; Figure 10 A control diagram for a software menu being developed; Figure 11 This is an overall side view of the battery compartment; Figure 12 This is a top view of the battery compartment; Figure 13 This is a partial side view of the battery compartment; Figure 14 This is a bottom view of the battery compartment; Figure 15 This is a schematic diagram of an explosion in the battery compartment; Figure 16 A schematic diagram showing how a 3-series, 2-parallel battery compartment transfers the collected energy to the first and second battery equalization chips. Figure 17 This is a structural diagram of a handheld telescope with a charging management device installed in the battery compartment.

[0018] Figure label: 101-Battery compartment; 102-Charging management module; 103-External power supply; 104-Main control module; 201-Charging management chip module; 202-Battery balancing chip module; 401-Path building sub-module; 402-Main control sub-module; 1-Battery compartment top cover; 2-Battery compartment bottom compartment; 3-Top cover PCB board; 4-Bottom compartment PCB board; 5-Positioning hole; 6-Positioning post; 7-Top cover screw hole; 8-Bottom compartment screw hole; 9-Conductive probe; 10-Second conductive post; 11-Top cover spring; 12-First conductive post; 13-Sealing ring; 14-Bottom compartment spring; 501-Eyepiece; 502-Objective lens; 503-Left button; 504-Right button; 505-Handle; 506-GPS antenna. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To enable those skilled in the art to clearly understand the implementation principle of this invention, a brief introduction and explanation of the power supply modes of terminal devices in the prior art is provided here. In the prior art, because some terminal devices consume a lot of power, these devices require a separate charger, necessitating users to carry the charger with them, resulting in a poor user experience. Please see [link to previous text]. Figure 1 , Figure 1 A schematic diagram of a charger for use with terminal devices.

[0021] Furthermore, in existing technologies, the power supply module in terminal devices is typically composed of multiple rechargeable batteries. If the power supply module contains rechargeable batteries with significant voltage differences, short circuits and mutual charging can occur, posing a serious safety hazard. Sometimes, some manufacturers even weld multiple rechargeable batteries together to form a single power supply module for charging the terminal device. Please see [link to relevant documentation]. Figure 2 , Figure 2 This is a schematic diagram of welding multiple rechargeable batteries together to form a power supply module for a terminal device.

[0022] To address the aforementioned technical problems, this embodiment provides a charging management device for a battery compartment. This device can solve the technical problems in the prior art where terminal devices need to be equipped with separate independent chargers, and the safety and reliability of terminal devices during the charging process cannot be guaranteed.

[0023] Please see Figure 3 , Figure 3This is a structural diagram of a battery compartment charging management device provided in an embodiment of the present invention. The charging management device is built into a terminal device and includes: A charging management module 102, equipped with i battery compartments 101 and connected to an external power supply 103, is used to set the operating parameters of each battery compartment 101, detect the charging and discharging parameters of each rechargeable battery in each battery compartment 101, and adjust the charging and discharging state of each rechargeable battery in order to balance the voltage of each individual battery cell during the process of controlling the charging and discharging state of each battery compartment 101; N rechargeable batteries are connected in series in each battery compartment 101; i≥1; N≥2; The main control module 104 is connected to the charging management module 102 and is used to select an external power supply 103 or at least one of the battery compartments 101 to charge the terminal device.

[0024] In this embodiment, the external power supply 103 can use either DC input or a Type-C interface. When the external power supply 103 uses DC input, its DC input voltage must be greater than the highest series voltage of the rechargeable batteries in the battery compartment 101. For example, if the battery compartment 101 contains three rechargeable batteries with a maximum series voltage of 12.6V, then the DC input voltage of the external power supply 103 can be 15V. When the DC input voltage of the external power supply 103 is lower than the highest series voltage of the rechargeable batteries in the battery compartment 101, the DC input voltage of the external power supply 103 needs to be boosted to avoid insufficient power supply and unstable voltage during use of the charging management device. When the external power supply 103 uses a Type-C interface, a PD management protocol (USB Power Delivery protocol) can also be introduced, allowing the external power supply 103 to communicate intelligently with the charging management device and automatically allocate voltage and current to the charging management device.

[0025] In this embodiment, the charging management module 102 is essentially a comprehensive power management chip. The charging management module 102 includes at least one battery compartment 101, and each battery compartment 101 contains at least two rechargeable batteries. All the rechargeable batteries in each battery compartment 101 are connected in series. Furthermore, all the rechargeable batteries in each battery compartment 101 can be freely disassembled and reassembled. With this configuration, even if one of the rechargeable batteries in the battery compartment 101 fails, the operator can independently replace the faulty battery without sending the battery compartment 101 to the factory for repair or replacement with a new one. This significantly reduces the charging cost of the terminal device.

[0026] The charging management module 102 can not only set the charging parameters of multiple battery compartments 101, but also detect the charging and discharging parameters of each battery in each battery compartment 101. During the control of the charging and discharging state of each battery compartment 101, the charging management module 102 can adjust the charging and discharging state of each battery with the goal of balancing the voltage of each individual battery cell, thereby eliminating voltage differences between the batteries. This avoids short circuits and mutual charging problems caused by voltage differences within the battery compartments 101. Simultaneously, the charging management module 102 can also provide safety protection for each battery compartment 101 (such as overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, over-temperature protection, and reverse connection protection), ensuring the safety and reliability of the battery compartments 101 during use.

[0027] In practical applications, the main control module 104 can select either the external power supply 103 or at least one of the battery compartments 101 to charge the terminal device based on the power supply status of the external power supply 103, the power status of each battery compartment 101 in the charging management module 102, and the load requirements of the terminal device.

[0028] Specifically, when the external power supply 103 has sufficient power supply capacity, the main control module 104 can select the external power supply 103 to power the terminal device; when the external power supply 103 is unavailable or has insufficient power supply capacity, the main control module 104 can select one or more battery compartments 101 from the i battery compartments 101 to power the terminal device. If the supply voltage of the external power supply 103 is higher than the series output voltage of all battery compartments 101 in the charging management module 102, then the main control module 104 will select the external power supply 103 to power the terminal device. If all battery compartments 101 in the charging management module 102 are fully charged, the main control module 104 will select the battery compartment 101 with the highest series output voltage among the multiple battery compartments 101 to power the terminal device. If the external power supply 103 is unavailable, and any one of the battery compartments 101 in the charging management module 102 cannot meet the power supply requirements of the terminal device, the main control module 104 will select at least two battery compartments 101 in the charging management module 102 to power the terminal device. Clearly, the charging management device provided in this embodiment can use either the external power supply 103 or at least one battery compartment 101 in the charging management module 102 to charge the terminal device. With this configuration, users do not need to carry a charger to charge the terminal device, thereby further improving the user experience when using the terminal device.

[0029] Based on the above embodiments, this embodiment further explains and optimizes the technical solution. Please refer to [link / reference]. Figure 4 , Figure 4 This is a structural diagram of a charging management module 102 provided in an embodiment of the present invention. In a preferred embodiment, the charging management module 102 includes: The charging management chip module 201 is used to set the charging and discharging parameters of each battery compartment 101; The battery balancing chip module 202 is used to detect the charging and discharging parameters of each rechargeable battery in each battery compartment 101. At the same time, in the process of controlling the charging and discharging state of each battery compartment 101, the charging and discharging state of each rechargeable battery is adjusted with the goal of balancing the individual cell voltage of each rechargeable battery in each battery compartment 101.

[0030] Since the charging management module 102 needs to simultaneously perform three functions—setting the charging parameters of multiple battery compartments 101, providing safety protection for multiple battery compartments 101, and eliminating the power differences between the rechargeable batteries in multiple battery compartments 101—there are relatively few such management chips on the market. In order to reduce the cost of the charging management device described in this application, in this embodiment, the charging management module 102 is divided into two parts: a charging management chip module 201 and a battery balancing chip module 202.

[0031] The charging management chip module 201 can be built using a dedicated buck-boost charging management chip. This type of chip needs to support charging of series-connected rechargeable batteries and multiple fast charging protocols, with a maximum charging power exceeding 100W. Since the charging management chip module 201 uses a buck-boost architecture, the external power supply 103 must maintain a wide voltage range to charge the multiple battery compartments 101.

[0032] When providing safety protection for multiple battery compartments 101, the battery balancing chip module 202 needs to detect information such as the voltage, charging and discharging current, and ambient temperature of each rechargeable battery in the multiple battery compartments 101. This is necessary to achieve overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, over-temperature protection, and reverse connection protection for each battery compartment 101. Furthermore, the battery balancing chip module 202 also needs to have the function of balancing the capacity of each rechargeable battery. This eliminates the capacity differences between the rechargeable batteries in each battery compartment 101, thereby preventing short circuits and mutual charging between the rechargeable batteries in the battery compartments 101, and further extending the service life of the battery compartments 101.

[0033] In a preferred embodiment, the number of charging management chips in the charging management chip module 201 is i, and the number of battery balancing chips in the battery balancing chip module 202 is also i. That is, each battery compartment 101 in the charging management module 102 is preferably equipped with one charging management chip and one battery balancing chip, so that each battery compartment 101 has independent parameter setting, status detection and current balancing capabilities.

[0034] To enable those skilled in the art to more clearly understand the internal structure of the charging management module 102 of the present invention, an example is provided here to specifically illustrate the internal structure of the charging management module 102. Please refer to... Figure 5 , Figure 5 This is an internal structural diagram of a battery compartment charging management device provided in an embodiment of the present invention. Figure 5In the charging management device shown, two charging management chips are provided in the charging management chip module 201, and two battery balancing chips are provided in the battery balancing chip module 202.

[0035] exist Figure 5 In the middle, the charging management module 102 includes: a first charging management chip IC1, a second charging management chip IC2, a first battery equalization chip IC3, and a second battery equalization chip IC4; The first power supply terminal of the external power supply 103 is connected to the input terminal of the first charging management chip IC1 and the input terminal of the second charging management chip IC2. The enable terminal EN of the first charging management chip IC1 and the enable terminal EN of the second charging management chip IC2 are connected. The first output terminal of the first charging management chip IC1 is connected to the positive terminal of the first battery compartment P1 and the first input terminal of the first battery equalization chip IC3. The second output terminal of the first charging management chip IC1 is connected to the negative terminal of the first battery compartment P1 and the second input terminal of the first battery equalization chip IC3. The second output terminal of the first charging management chip IC1 is grounded. The first output terminal of the second charging management chip IC2 is connected to the positive terminal of the second battery compartment P2 and the first input terminal of the second battery equalization chip IC4. The second output terminal of the second charging management chip IC2 is connected to the negative terminal of the second battery compartment P2 and the second input terminal of the second battery equalization chip IC4. The second output terminal of the second charging management chip IC2 is grounded. Correspondingly, the N-1 connecting lines of the N rechargeable batteries in the first battery compartment P1 connected in series are respectively connected to the N-1 input terminals of the first battery equalization chip IC3, and the N-1 connecting lines of the N rechargeable batteries in the second battery compartment P2 connected in series are respectively connected to the N-1 input terminals of the second battery equalization chip IC4. The total positive terminal of the first battery compartment P1 and the total positive terminal of the second battery compartment P2 are the two output terminals of the charging management module 102; N≥2.

[0036] In this embodiment, the internal structure of the charging management module 102 is described in detail. The charging management chip module 201 is composed of a first charging management chip IC1 and a second charging management chip IC2, and the battery balancing chip module 202 is composed of a first battery balancing chip IC3 and a second battery balancing chip IC4.

[0037] exist Figure 5 In this design, three rechargeable batteries are connected in series in both the first battery compartment P1 and the second battery compartment P2, and the operating principles of the first battery compartment P1 and the second battery compartment P2 are the same. Please refer to [link / reference]. Figure 6 and Figure 7 , Figure 6 A diagram showing the current flow when charging the first battery compartment. Figure 7A diagram showing the current during the discharge of the first battery compartment.

[0038] Please continue reading Figure 5 The charging management module 102 also includes a pull-up resistor R0 connected to the enable terminal of the charging management chip module 201; wherein, the first end of the pull-up resistor R0 is connected to the first power supply terminal of the external power supply 103, and the second end of the pull-up resistor R0 is connected to the enable terminal EN of the first charging management chip IC1, the enable terminal EN of the second charging management chip IC2, and the main control module 104, respectively.

[0039] In practical applications, if the terminal device is not powered on, it can be powered directly by an external power supply 103. In this power supply mode, simply pull up the enable pins EN of the first charging management chip IC1 and the second charging management chip IC2 using pull-up resistors R0, and the external power supply 103 can be used to power the terminal device.

[0040] Please see Figure 8 , Figure 8 This is a structural diagram of a main control module provided in an embodiment of the present invention. In a preferred embodiment, the main control module 104 includes: The path building submodule 401 is connected to the charging management module 102 and is used to build a power supply path between the external power supply 103 and the main control module 104 to obtain a first power supply path. It also builds i power supply paths between the battery compartment and the main control module 104 to obtain i second power supply paths. The main control submodule 402, connected to the path construction submodule 401, is used to select a first power supply path or select at least one power supply path from i second power supply paths to charge the terminal device.

[0041] In this embodiment, the main control module 104 has two sub-modules: a path building sub-module 401 and a main control sub-module 402. The path building sub-module 401 is connected to the charging management module 102 and is used to build a first power supply path between the external power supply 103 and the main control module 104, and to build i second power supply paths between i battery compartments 101 and the main control module 104.

[0042] In other words, there is an independent power supply path between the external power supply 103 and the main control module 104, and each battery compartment 101 also has an independent power supply path between it and the main control module 104. With this configuration, the main control submodule 402 can either select the first power supply path to power the terminal device, or select at least one power supply path from the i second power supply paths to power the terminal device.

[0043] In a preferred embodiment, the path building submodule 401 includes: A first diode is used to control the conduction state of the first power supply path; i second diodes are used to control the conduction state of i second power supply paths, respectively.

[0044] In this embodiment, to reduce the design cost of the path construction submodule 401, diodes are used to construct the path submodule. Furthermore, by utilizing the unidirectional conduction characteristic of diodes, reverse current can be prevented from flowing from the higher-voltage battery compartment to the lower-voltage battery compartment, thereby reducing the risk of short circuits and mutual charging between battery compartments from a circuit structure perspective.

[0045] The path construction submodule 401 includes one first diode and i second diodes. Specifically, the first diode controls the conduction state of the first power supply path, while the i second diodes control the conduction state of the i second power supply paths. This configuration automatically creates selectable power supply paths between the external power supply 103 and the i battery compartments without requiring mechanical switching switches. Furthermore, this configuration reduces the likelihood of power loss during power switching of the terminal device.

[0046] It should be noted that in practical applications, the first diode and each of the second diodes can be set as ideal diodes to reduce the on-state voltage drop and power consumption of the path building submodule 401. The conduction condition of an ideal diode can be set as follows: the input voltage is greater than the sum of the output voltage and the accuracy of the ideal diode.

[0047] exist Figure 5 In the charging management device shown, the path construction submodule 401 includes diodes D1, D2, and D3. Diode D1 corresponds to the first power supply path, while diodes D2 and D3 each correspond to one of the two second power supply paths. Furthermore, the anode of diode D1 is connected to the second power supply terminal of the external power supply 103, the anode of diode D2 is connected to the total positive terminal of the first battery compartment P1, and the anode of diode D3 is connected to the total positive terminal of the second battery compartment P2. The cathodes of diodes D1, D2, and D3 are all connected to the system power supply VDD.

[0048] Please continue reading Figure 5 In a preferred embodiment, the main control submodule 402 includes: The main control chip U0 is used to select a first power supply path or select at least one power supply path from i second power supply paths to charge the terminal device; The first DC / DC conversion unit is used to convert the output voltage of the external power supply 103 into the operating voltage required by the main control chip U0. The second DC / DC conversion unit is used to convert the output voltage of the i battery compartments into the operating voltage required by the terminal device. The analog-to-digital converter (ADC) is used to convert the signals output by the charging management module 102 and the path building submodule 401 into digital signals that can be recognized by the main control chip U0.

[0049] In this embodiment, the internal structure of the main control submodule 402 is described in detail. The main control submodule 402 includes a main control chip U0, a first DC / DC converter unit (DC / DC1), a second DC / DC converter unit (DC / DC2), and an analog-to-digital converter (ADC).

[0050] Specifically, the main control chip U0 can choose either the first power supply path to charge the terminal device or at least one power supply path from the i second power supply paths to charge the terminal device; the first DC / DC converter 1 can convert the output voltage of the external power supply 103 into the operating voltage required by the main control chip U0; the second DC / DC converter 2 can convert the output voltage of the i battery compartments into the operating voltage required by the terminal device; and the analog-to-digital converter ADC can convert the signals output by the charging management module 102 and the path building submodule 401 into digital signals that the main control chip U0 can recognize.

[0051] exist Figure 5 In the charging management device shown, the input terminal of the first DC-DC converter unit DC / DC1 is connected to the system power supply VDD, and the output terminal of the first DC-DC converter unit DC / DC1 is connected to the main control chip U0. The first, second, and third input terminals of the analog-to-digital converter (ADC) are connected to the positive terminals of diodes D1, D2, and D3, respectively. The system power supply VDD is connected to the input terminal of the second DC-DC converter unit DC / DC2, and the output terminal of the second DC-DC converter unit DC / DC2 is connected to the fourth input terminal of the ADC and the terminal device LOAD, respectively. The first, second, and third I / O ports of the main control chip U0 are connected to the I / O ports of the first charging management chip IC1, the second terminal of the pull-up resistor R0, and the I / O ports of the second charging management chip IC2, respectively. The fourth I / O port of the main control chip U0 is connected to the enable terminal of the second DC-DC converter unit DC / DC2.

[0052] In practical applications, the main control chip U0 can be configured as an MCU (Microcontroller Unit), FPGA (Field-Programmable Gate Array), SOC (System on Chip), etc. The primary function of the first DC / DC converter unit 1 is to convert the output voltage of the external power supply 103 into the operating voltage required by the main control chip U0. The primary function of the second DC / DC converter unit 2 is to convert the output voltage of the first battery compartment P1 and the second battery compartment P2 into the operating voltage required by the terminal device.

[0053] It should be noted that in this charging management device, since the two connecting wires of the three rechargeable batteries in the first battery compartment P1 connected in series are respectively connected to the two input terminals of the first battery equalization chip IC3, the first battery equalization chip IC3 can monitor and control the operation of the three rechargeable batteries in the first battery compartment P1 in real time. Similarly, since the two connecting wires of the three rechargeable batteries in the second battery compartment P2 connected in series are respectively connected to the two input terminals of the second battery equalization chip IC4, the second battery equalization chip IC4 can monitor and control the operation of the three rechargeable batteries in the second battery compartment P2 in real time.

[0054] When all the rechargeable batteries in the first battery compartment P1 and the second battery compartment P2 have the same capacity, model and usage, after the first battery equalization chip IC3 and the second battery equalization chip IC4 balance the charging and discharging of all the rechargeable batteries in the first battery compartment P1 and the second battery compartment P2, the output voltage of each rechargeable battery can be basically the same, and the output voltage of the first battery compartment P1 and the second battery compartment P2 can also be kept consistent.

[0055] In practical applications, terminal devices have two power supply methods. One is that the terminal device is powered directly by an external power supply 103 when it is not powered on. In this method, only the enable pins of the first charging management chip IC1 and the second charging management chip IC2 need to be pulled high by the pull-up resistor R0 to directly use the external power supply 103 to power the terminal device. The other method is that the main control chip U0 adjusts the discharge state of the first battery compartment P1 and the second battery compartment P2 to power the terminal device. When the terminal device is not connected to the external power supply 103, the main control chip U0 will select the battery compartment with the higher output voltage from the first battery compartment P1 and the second battery compartment P2 to power the terminal device. When both the first battery compartment P1 and the second battery compartment P2 are fully charged, if the terminal device is under light load, the first battery compartment P1 and the second battery compartment P2 will alternately power the terminal device. If the terminal device is under medium to heavy load, the first battery compartment P1 and the second battery compartment P2 will be connected in parallel to power the terminal device simultaneously.

[0056] Furthermore, when the supply voltage of the external power supply 103 is higher than the total output voltage of the first battery compartment P1 and the second battery compartment P2, the external power supply 103 can directly supply power to the terminal device, while the first battery compartment P1 and the second battery compartment P2 stop supplying power to the terminal device. In this case, the main control chip U0 can also control the external power supply 103 to charge the first battery compartment P1 and the second battery compartment P2. When the power supply of the external power supply 103 is insufficient, the main control chip U0 can turn off the charging function of the first battery compartment P1 and the second battery compartment P2, so that the external power supply 103 can only supply power to the terminal device.

[0057] It should be noted that when the power supply capacity of the external power supply 103 is insufficient, the main control chip U0 can monitor the power supply voltage of the terminal device through the analog-to-digital converter (ADC). If the output voltage of the external power supply 103 is low during the process of supplying power to the terminal device and cannot meet the power supply requirements of the terminal device, the external power supply 103 can be controlled to stop supplying power to the terminal device, thereby achieving the purpose of protecting the charging management device and the external power supply 103.

[0058] As can be seen, the technical solution provided in this embodiment can power the terminal device through the external power supply 103 when the terminal device is not powered on, or the main control chip U0 can power the terminal device according to the power supply needs of the terminal device. It can also protect the charging management device and the external power supply 103 when the power supply capacity of the external power supply 103 is insufficient. This not only ensures the safety of the charging management device during use, but also further improves the convenience for people when using the terminal device.

[0059] Additionally, it should be noted that since there are various types of load modules in the terminal device, and these load modules do not work simultaneously within the same time period, a third DC / DC converter unit (DC / DC3) can be added to the main control module 104 to further reduce the power consumption of the charging management device.

[0060] Please see Figure 9 , Figure 9 This is an internal structural diagram of another battery compartment charging management device provided in an embodiment of the present invention. Figure 9 In the charging management device shown, a second DC / DC converter (DC / DC2) is used to power the basic load module LOAD1 in the terminal device, and a third DC / DC converter (DC / DC3) is used to power the additional load module LOAD2 in the terminal device. The basic load module LOAD1 in the terminal device refers to the functional module that must operate during the terminal device's operation, while the additional load module LOAD2 refers to the functional module that can be turned on or off during the terminal device's operation.

[0061] In addition to the above, in practical applications, LED indicators PD1 and PD2 can be connected to the first charging management chip IC1 via resistors R1 and R2, and used to indicate the charging and discharging status of the first battery compartment P1. For example, when LED indicator PD1 is red, it indicates that the first battery compartment P1 is charging, and when LED indicator PD2 is green, it indicates that the first battery compartment P1 is fully charged. Similarly, LED indicators PD3 and PD4 can be connected to the second charging management chip IC2 via resistors R3 and R4, and used to indicate the charging and discharging status of the second battery compartment P2. For example, when LED indicator PD3 is red, it indicates that the second battery compartment P2 is charging, and when LED indicator PD4 is green, it indicates that the second battery compartment P2 is fully charged.

[0062] It is important to note that, in Figure 5 and Figure 9 The charging management device shown uses a 3-series-2-parallel configuration (each battery compartment has 3 rechargeable batteries connected in series, and 2 battery compartments are connected in parallel) as an example to illustrate its working principle. In practical applications, the battery compartments in the charging management device can be configured in other ways, such as: 2-series-2-parallel configuration (each battery compartment has 2 rechargeable batteries connected in series, and 2 battery compartments are connected in parallel), 3-series-3-parallel configuration (each battery compartment has 3 rechargeable batteries connected in series, and 3 battery compartments are connected in parallel), 4-series-5-parallel configuration (each battery compartment has 4 rechargeable batteries connected in series, and 5 battery compartments are connected in parallel), etc.

[0063] In addition, to further improve the convenience of using this charging management device to charge terminal devices, a user interface can be developed on a computer to control the charging management device, allowing users to adjust and modify the charging method of the terminal devices through interactive communication. Please see [link to relevant documentation]. Figure 10 , Figure 10 This is a control diagram for a software menu being developed. The diagram shows a vertical menu list on the left, containing four options: Screen Settings, Function Settings, Charging Settings, and Mode Settings. Charging Settings is selected and expanded, displaying the following operation paths: Automatic Charging and Manual Charging. When the user selects and expands Manual Charging, the user can turn on the charging management device and charge the terminal device.

[0064] Based on the above embodiments, this embodiment further explains and optimizes the technical solution. Please refer to [link / reference]. Figures 11 to 15 , Figure 11 This is an overall side view of the battery compartment; Figure 12 This is a top view of the battery compartment. Figure 13 This is a partial side view of the battery compartment. Figure 14 This is a bottom view of the battery compartment. Figure 15 This is a schematic diagram of an explosion of the battery compartment.

[0065] In a preferred embodiment, each battery compartment 101 includes: a compartment body capable of accommodating N rechargeable batteries connected in series, N top cover springs 11 are provided above the compartment body, and N bottom compartment springs 14 are provided below the compartment body, with the N top cover springs 11 and the N bottom compartment springs 14 elastically clamping the N rechargeable batteries in a one-to-one correspondence.

[0066] In this embodiment, each battery compartment is provided with a compartment body, which can accommodate N rechargeable batteries connected in series. N top cover springs 11 are provided above the compartment body, and N bottom compartment springs 14 are provided below the compartment body. In this configuration, the N top cover springs 11 and the N bottom compartment springs 14 can clamp the N rechargeable batteries one by one inside the compartment body.

[0067] In a preferred embodiment, the battery compartment includes: a battery compartment top cover 1 and a battery compartment bottom compartment 2. A bottom compartment PCB board 4 is provided at the bottom of the battery compartment bottom compartment 2. The bottom compartment PCB board 4 is provided with N bottom compartment springs 14, M first conductive posts 12 and M second conductive posts 10. The length of the first conductive posts 12 is greater than the length of the second conductive posts 10. A top cover PCB board 3 is provided on the battery compartment top cover 1. The top cover PCB board 3 is provided with N top cover springs 11 and M conductive probes 9. When the battery compartment top cover 1 and the battery compartment bottom compartment 2 are closed together, the M conductive probes 9 elastically abut against the M first conductive posts 12 one by one, so as to introduce the electrical energy of the N rechargeable batteries into the bottom compartment PCB board 4 through the M second conductive posts 10; M is set according to the series connection of the N rechargeable batteries.

[0068] In this embodiment, the main structure of the battery compartment is described in detail. Within this battery compartment, the rechargeable batteries are elastically held in place by the upper cover spring 11 and the bottom compartment spring 14, and elastically contacted by the conductive probe 9 and the first conductive post 12. This allows for the disassembly, assembly, and replacement of all rechargeable batteries in the battery compartment. With this configuration, if any rechargeable battery in the battery compartment 101 malfunctions, the faulty battery can be repaired and replaced without sending the battery compartment back to the factory for repair, thus significantly reducing the power supply cost of the terminal equipment.

[0069] As a preferred embodiment, a sealing ring 13 is also provided on the upper edge of the battery compartment bottom compartment 2, and the battery compartment top cover 1 and the battery compartment bottom compartment 2 are pressed together by a positioning structure and a locking structure to press the sealing ring 13.

[0070] In this embodiment, in order to ensure the safety of the battery compartment during use, a sealing ring 13 can be provided on the upper edge of the battery compartment bottom compartment 2, and the sealing ring 13 can be pressed by the positioning structure and locking structure. This can form a sealed interface at the joint of the battery compartment, thereby preventing moisture, dust and other substances from entering the battery compartment and damaging the internal components and circuit boards, thereby extending the service life of the battery compartment.

[0071] As a preferred embodiment, the positioning structure includes: a positioning hole 5 provided on the upper cover 1 of the battery compartment and a positioning post 6 provided on the bottom compartment 2 of the battery compartment and capable of being inserted into the positioning hole 5.

[0072] In this embodiment, the positioning structure is described in detail. The positioning structure consists of a positioning hole 5 and a positioning post 6 in the battery compartment cover 1. When the battery compartment cover 1 and the battery compartment bottom compartment 2 are closed, the positioning post 6 is inserted into the positioning hole 5, allowing the battery compartment cover 1 and the battery compartment bottom compartment 2 to be positioned quickly and accurately.

[0073] It should be noted that when the upper cover PCB board 3 and the lower compartment PCB board 4 are symmetrical, even if the upper cover PCB board 3 and the lower compartment PCB board 4 are reversed, it will not affect the polarity of the rechargeable battery in the battery compartment. If the upper cover PCB board 3 and the lower compartment PCB board 4 are not symmetrical, the upper cover 1 and the lower compartment 2 of the battery compartment are positioned by the positioning holes 5 and the positioning posts 6, which can also prevent the polarity of the rechargeable battery in the battery compartment from being reversed.

[0074] As a preferred embodiment, the locking structure includes: a top cover screw hole 7 provided at the edge of the battery compartment top cover 1, a bottom compartment screw hole 8 provided on the compartment body of the battery compartment bottom 2, and a screw passing through the top cover screw hole 7 and the bottom compartment screw hole 8.

[0075] After the battery compartment cover 1 and the battery compartment bottom compartment 2 are positioned and closed, they can be locked together using a locking mechanism. Specifically, after the battery compartment cover 1 and the battery compartment bottom compartment 2 are closed together, align the top cover screw hole 7 located on the edge of the battery compartment cover 1 with the bottom compartment screw hole 8 located on the body of the battery compartment bottom compartment 2, and then use screws to pass through the top cover screw hole 7 and the bottom compartment screw hole 8 to lock the battery compartment cover 1 and the battery compartment bottom compartment 2.

[0076] In practical applications, when assembling the battery compartment, the bottom PCB board 4 can be fixed to the bottom of the battery compartment 2 with screws first. Then, the rechargeable batteries are installed on the bottom PCB board 4. When installing the rechargeable batteries, they should be assembled in sequence according to the positive and negative markings on the bottom of the battery compartment. The series connection between the rechargeable batteries can be achieved through the circuitry within the top cover PCB board 3 and the bottom PCB board 4. Before closing the top cover 1 and the bottom 2 of the battery compartment, the sealing ring 13 can be placed on the upper edge of the bottom 2 of the battery compartment, and the positioning hole 5 of the top cover 1 can be aligned with the positioning post 6 on the bottom 2 of the battery compartment. When the top cover 1 is closed onto the bottom 2 of the battery compartment, the top cover screw hole 7 on the edge of the top cover 1 and the bottom compartment screw hole 8 on the body of the bottom 2 of the battery compartment are aligned. Then, screws are used to pass through the top cover screw hole 7 and the bottom compartment screw hole 8 to lock the top cover 1 and the bottom 2 of the battery compartment.

[0077] When the battery compartment top cover 1 and the battery compartment bottom cover 2 are closed together, N top cover springs 11 and N bottom cover springs 14 will elastically clamp N rechargeable batteries in a one-to-one correspondence. Furthermore, M conductive probes 9 will elastically abut against M first conductive posts 12 in a one-to-one correspondence. Since the first conductive posts 12 correspond to the battery electrodes on the battery compartment top cover 1, and the second conductive posts 10 correspond to the battery electrodes on the battery compartment bottom cover 2, all the electrical energy of the rechargeable batteries in the battery compartment is then transferred to the bottom cover PCB board 4.

[0078] Once the battery compartment is assembled, multiple rechargeable batteries can be connected in series for electrical output. In this embodiment, the second conductive post 10 on the bottom PCB board 4 inside the battery compartment directly supplies electrical energy from the bottom PCB board 4 to the battery. Figure 9 The first battery equalization chip IC3 and the second battery equalization chip IC4 are shown in the image. Please refer to [link / reference]. Figure 16 , Figure 16 This is a schematic diagram illustrating how a 3-series, 2-parallel battery compartment transfers the collected energy to the first and second battery balancing chips. Figure 16 In this design, the battery compartments are configured as 3 series and 2 parallel, meaning each compartment contains 3 rechargeable batteries connected in series, and 2 compartments are connected in parallel. Assuming these two compartments are designated as the first battery compartment P1 and the second battery compartment P2, the power from the first battery compartment P1 is transferred to the first battery equalization chip IC3, and the power from the second battery compartment P2 is transferred to the second battery equalization chip IC4. Here, B0, B1, B2, and B3 are the input ports of the first battery equalization chip IC3, and similarly, B0, B1, B2, and B3 are the input ports of the second battery equalization chip IC4.

[0079] Accordingly, embodiments of the present invention also provide a terminal device, including a charging management device for a battery compartment as disclosed above.

[0080] In practical applications, the terminal device described in this invention can be set as a camera, an infrared imager, or various types of handheld mobile terminals, such as handheld telescopes, handheld infrared imagers, etc.

[0081] Please see Figure 17 , Figure 17 This is a structural diagram of a handheld telescope with a battery compartment and charging management device installed. Figure 17 The handheld telescope shown includes an eyepiece 501, an objective lens 502, a left button 503, a right button 504, a handle 505, a GPS antenna 506, and a charging management device with a battery compartment 101.

[0082] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0083] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0084] The charging management device for a battery compartment and a terminal device provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A charging management device for a battery compartment, characterized in that, Built into the terminal device, including: A charging management module with i battery compartments is connected to an external power supply. It is used to set the operating parameters of each battery compartment and detect the charging and discharging parameters of each rechargeable battery in each battery compartment. At the same time, in the process of controlling the charging and discharging state of each battery compartment, the charging and discharging state of each rechargeable battery is adjusted with the goal of balancing the voltage of each individual battery cell. There are N rechargeable batteries connected in series in the battery compartment; i≥1; N≥2. The main control module, connected to the charging management module, is used to select either the external power supply or at least one of the i battery compartments to charge the terminal device.

2. The charging management device for a battery compartment according to claim 1, characterized in that, The charging management module includes: The charging management chip module is used to set the charging and discharging parameters of each battery compartment; The battery balancing chip module is used to detect the charging and discharging parameters of each rechargeable battery in each battery compartment. At the same time, in the process of controlling the charging and discharging state of each battery compartment, the module aims to balance the individual cell voltages of each rechargeable battery in each battery compartment and adjusts the charging and discharging state of each rechargeable battery.

3. The charging management device for a battery compartment according to claim 2, characterized in that, The number of charging management chips in the charging management chip module is i, the number of battery balancing chips in the battery balancing chip module is i, and each battery compartment corresponds to one charging management chip and one battery balancing chip.

4. The charging management device for a battery compartment according to claim 2, characterized in that, The charging management module further includes a pull-up resistor connected to the enable terminal of the charging management chip module.

5. The charging management device for a battery compartment according to claim 1, characterized in that, The main control module includes: The path building submodule is connected to the charging management module and is used to build a power supply path between the external power supply and the main control module to obtain a first power supply path, and to build i power supply paths between the battery compartment and the main control module to obtain i second power supply paths. The main control submodule, connected to the path construction submodule, is used to select the first power supply path or at least select one power supply path from i second power supply paths to charge the terminal device.

6. The charging management device for a battery compartment according to claim 5, characterized in that, The path construction submodule includes: A first diode is used to control the conduction state of the first power supply path; i second diodes are used to control the conduction state of i second power supply paths, respectively.

7. The charging management device for a battery compartment according to claim 5, characterized in that, The main control submodule includes: The main control chip is used to select the first power supply path or at least select one power supply path from i second power supply paths to charge the terminal device; The first DC-DC conversion unit is used to convert the output voltage of the external power supply into the operating voltage required by the main control chip. The second DC-DC conversion unit is used to convert the output voltage of the i battery compartments into the operating voltage required by the terminal device; An analog-to-digital converter is used to convert the signals output by the charging management module and the path building submodule into digital signals that can be recognized by the main control chip.

8. The charging management device for a battery compartment according to claim 1, characterized in that, Each battery compartment includes: a compartment body capable of accommodating N rechargeable batteries connected in series, with N top cover springs (11) on the top of the compartment body and N bottom compartment springs (14) on the bottom of the compartment body, the N top cover springs (11) and the N bottom compartment springs (14) elastically clamping the N rechargeable batteries in a one-to-one correspondence.

9. A charging management device for a battery compartment according to claim 8, characterized in that, The compartment includes a battery compartment top cover (1) and a battery compartment bottom compartment (2). The bottom of the battery compartment bottom compartment (2) is provided with a bottom compartment PCB board (4). The bottom compartment PCB board (4) is provided with N bottom compartment springs (14), M first conductive posts (12) and M second conductive posts (10). The length of the first conductive posts (12) is greater than the length of the second conductive posts (10). The battery compartment top cover (1) is provided with a top cover PCB board (3). The top cover PCB board (3) is provided with N top cover springs (11). The top cover PCB board (3) is also provided with M conductive probes (9). When the battery compartment top cover (1) and the battery compartment bottom compartment (2) are closed together, the M conductive probes (9) elastically abut against the M first conductive posts (12) one by one, so as to introduce the electrical energy of the N rechargeable batteries into the bottom compartment PCB board (4) through the M second conductive posts (10). M is set according to the series connection of the N rechargeable batteries.

10. A terminal device, characterized in that, The device includes a charging management device for a battery compartment as described in any one of claims 1 to 9.

Images