Multi-battery compartment power supply circuit, multi-battery compartment equipment and power supply method

Abstract

The present application provides a multi-battery compartment power supply circuit, a multi-battery compartment device and a power supply method. The multi-battery compartment power supply circuit includes: a power path selection circuit, including a multi-way input selection circuit arranged corresponding to multiple input sources, the input source includes multiple battery compartments, each of the input selection circuits includes a switch tube connected to the corresponding input source, each of the switch tube switches the power supply to the corresponding input source according to the power supply status and load status of the corresponding input source; a voltage detection circuit, which is used to connect to the multiple input sources respectively and perform voltage detection on the multiple input sources; a main control circuit, which is connected to the voltage detection circuit, and is used to determine the battery compartment that needs to be replaced and control the output of battery compartment replacement prompt information according to the voltage detection results of the voltage detection circuit on the multiple input sources.

Description

Technical Field

[0001] The present application relates to the technical field of battery equipment, and in particular to a multi-battery compartment power supply circuit, a multi-battery compartment equipment, and a power supply method for the multi-battery compartment equipment. Background Art

[0002] At present, most portable electronic devices are powered by batteries, so that they can be used without an external power source when carried out. However, when electronic devices are used for a long time, the battery may be low and need to be replaced. Users often know that the battery is low when the battery power drops to the point where the electronic device is about to shut down or is directly shut down. Users cannot predict the need to replace the battery in advance and may face the situation where there is no spare battery to replace. Even if there is a spare battery, replacing the battery will cause the electronic device to lose power and shut down. It can only be restarted after the battery replacement operation is completed. This may seriously affect the user's use needs at critical times. Summary of the invention

[0003] In order to solve the existing technical problems, the present application provides a multi-battery compartment power supply circuit, a multi-battery compartment device and a power supply method for a multi-battery compartment device that can realize battery replacement without powering off and restarting.

[0004] In a first aspect of an embodiment of the present application, a multi-battery compartment power supply circuit is provided, comprising:

[0005] A power path selection circuit, comprising a multi-channel input selection circuit corresponding to a plurality of input sources, wherein the input sources include a plurality of battery compartments, each of the input selection circuits comprises a switch tube connected to the corresponding input source, and each of the switch tubes switches the power supply to the corresponding input source according to the power supply state and load state of the corresponding input source;

[0006] A voltage detection circuit is connected to the plurality of input sources respectively and is used to perform voltage detection on the plurality of input sources;

[0007] The main control circuit is connected to the voltage detection circuit, and is used to determine the battery compartment that needs to be replaced and control the output of battery compartment replacement prompt information based on the voltage detection results of the voltage detection circuit on the multiple input sources.

[0008] In a second aspect of the embodiments of the present application, a multi-battery compartment device is provided, comprising a plurality of battery compartments and a multi-battery compartment power supply circuit as described in any embodiment of the present application;

[0009] Each of the battery compartments comprises a battery compartment shell for accommodating batteries and a battery compartment upper cover arranged corresponding to the battery compartment shell, wherein the battery compartment upper cover is arranged on the opening end of the battery compartment shell to seal the battery in the corresponding battery compartment shell.

[0010] According to a third aspect of the present application, a power supply method for a multi-battery compartment device is provided, comprising:

[0011] Obtaining voltage detection results of multiple input sources; wherein the input sources include multiple battery compartments, and each of the input sources switches power supply based on the power supply state and load state of the corresponding input source through a correspondingly connected input selection circuit;

[0012] According to the voltage detection results of each of the input sources, the battery compartment that needs to be replaced is determined and a battery compartment replacement prompt message is output.

[0013] The multi-battery compartment power supply circuit provided in the above-mentioned embodiment is designed with a multi-channel input selection circuit corresponding to a plurality of input sources, a voltage detection circuit for detecting the voltage of the plurality of input sources, and a main control circuit for prompting the battery compartment replacement according to the voltage detection results of the plurality of input sources. Each input selection circuit includes a switch tube connected to the corresponding input source, and the plurality of input sources include a plurality of battery compartments. Each switch tube switches the power supply according to the power supply status and the load status of the corresponding input source. That is, the switch tube can switch the power supply according to the battery loading status in the plurality of battery compartments and the corresponding power status. The main control circuit promptly determines the battery status according to the voltage detection results of the plurality of input sources. The main control circuit can determine the battery compartment that needs to be replaced and control the output of the battery compartment replacement prompt information. In this way, through the design of a multi-battery compartment power supply circuit, the electronic device can use multiple battery compartments to meet the power demand when an external power supply cannot be used. The main control circuit can promptly determine the battery compartment with insufficient power among the multiple battery compartments, and output the battery compartment replacement prompt information, so that the user can replace the battery compartment with insufficient power in time when there are still battery compartments with sufficient power to meet the usage needs among the multiple battery compartments according to the battery compartment replacement prompt information output by the main control circuit. The battery can be replaced without powering off and restarting the device, which effectively improves the continuous use time of the device without power failure.

[0014] The multi-battery compartment device and the power supply method for the multi-battery compartment device provided in the above-mentioned embodiments belong to the same concept as the corresponding multi-battery compartment power supply circuit embodiments, and thus have the same technical effects as the corresponding multi-battery compartment power supply circuit embodiments, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of a multi-battery compartment power supply circuit in one embodiment.

[0016] Figure 2 Schematic diagram of the circuit structure of a multi-battery compartment power supply circuit in one embodiment.

[0017] Figure 3 Schematic diagram of the relationship between the gate-source voltage and the on-current of a field effect transistor in a buffer and undervoltage protection circuit in an embodiment.

[0018] Figure 4 Schematic diagram of a graphical display interface in one embodiment.

[0019] Figure 5 FIG. 4 is a schematic diagram of a graphic display interface in another embodiment.

[0020] Figure 6 A flowchart of determining battery compartment replacement prompt information in an embodiment.

[0021] Figure 7 Schematic diagram of a multi-battery compartment structure in one embodiment.

[0022] Figure 8 Schematic diagram of the exploded structure of the battery compartment in one embodiment.

[0023] Fig. 9 for Figure 8 Schematic diagram of the assembly structure of the battery compartment shown.

[0024] Fig.10 for Fig. 9 A schematic diagram of a multi-battery compartment structure shown in FIG. 1 , in which no battery compartment is installed in the battery compartment chamber.

[0025] Fig.11 for Fig. 9 A schematic diagram of the structure in which a battery compartment is installed in a battery compartment chamber in a multi-battery compartment structure is shown.

[0026] Fig.12 It is a front view of a battery compartment cover in one embodiment.

[0027] Fig.13 for Fig.12 A schematic diagram of the back side of the battery compartment cover is shown.

[0028] Fig.14 for Fig.13 The schematic diagram shown is the battery compartment cover with the first sealing gasket removed.

[0029] Fig.15 for Fig.14 The schematic diagram shown is the battery compartment cover with the isolation cover removed.

[0030] Fig.16 for Fig.15 The schematic diagram shown is a battery compartment cover with the rotating part and the reset part further removed.

[0031] Fig.17 Flow chart of a power supply method for a multi-battery compartment device in one embodiment.

[0032] Component Symbols:

[0033] Input source 11, external power supply 111, battery compartment 112, power path selection circuit 12, voltage detection circuit 13, input selection circuit 121, input end 1211, output end 1212, comparison circuit 1213, main control circuit 14, buffer and undervoltage protection circuit 15, RC circuit 151, positive and reverse connection circuit 16, power status detection circuit 17, display screen 18, prompt information display area 181, battery compartment chamber 20, battery compartment shell 21, opening end 210, locking part 213, storage cavity 214, first waterproof pad 215, first sealing pad 216, battery compartment upper cover 22, locking structure 24, cover plate 221, operating part 222, reset part 223, rotating part 224, second waterproof pad 225, second sealing pad 226, isolation cover 23.

[0034] The first battery compartment BAT1, the second battery compartment BAT2, the first switch tube Q7, the second switch tube Q8, the third switch tube Q9, the first comparator chip U6, the second comparator chip U7, the third comparator chip U8, the fourth field effect tube Q13, the fifth field effect tube Q11, and the sixth field effect tube Q12. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0037] In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments. It should be noted that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.

[0038] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are only for the purpose of explanation in conjunction with the embodiments of the accompanying drawings and do not represent the only implementation method.

[0039] In the study of how to meet the needs of long-term continuous use of battery-powered portable electronic devices, especially how to avoid seriously affecting the user's usage needs at critical times, the inventor conducted the following analysis on the battery power supply scheme of the electronic device.

[0040] Currently, most portable electronic devices are powered by a single battery compartment. When replacing the battery, the device must be powered off and restarted.

[0041] A small number of electronic devices are also designed to use multiple battery compartments for power supply. The total power of the multiple battery compartments is higher than that of a single battery compartment, thereby increasing the continuous use time of the electronic equipment. However, the multiple battery compartments are still treated as a whole, and replacing any battery in the multiple battery compartments will still cause the device to lose power.

[0042] Based on this, the inventor of the present application proposed a new design of a multi-battery compartment power supply circuit, wherein the power path selection circuit 12 includes a multi-way input selection circuit 121 corresponding to the multiple input sources 11, and the multi-way input selection circuit 121 is used to switch the power supply of the input source 11 according to the power supply status and load status of the input source 11, so that the power supply of the multiple battery compartments 112 can be relatively independent, and the voltage detection circuit 13 is used to detect the voltage of the multiple input sources 11, and the main control circuit 14 is used to determine and control the output battery compartment replacement prompt information in real time according to the voltage detection result of the input source 11, so that the user can replace the battery compartment with insufficient power in time according to the battery compartment replacement prompt information output by the main control circuit 14 when there are still battery compartments 112 with sufficient power to support the device usage requirements among the multiple battery compartments 112, and the battery replacement can be performed without powering off and restarting the device, thereby ensuring the continuous use time of the device without uninterrupted power.

[0043] See also Figure 1 , a multi-battery compartment power supply circuit provided in an embodiment of the present application, includes: a power path selection circuit 12, including a multi-way input selection circuit 121 arranged corresponding to a plurality of input sources 11, the input source 11 includes a plurality of battery compartments 112, each input selection circuit 121 includes a switch tube connected to the corresponding input source 11, each switch tube switches the power supply to the input source 11 according to the power supply state and load state of the corresponding input source 11; a voltage detection circuit 13, respectively connected to the plurality of input sources 11, for performing voltage detection on the plurality of corresponding input sources 11; a main control circuit 14, connected to the voltage detection circuit 13, for determining the battery compartment that needs to be replaced and controlling the output of the battery compartment replacement prompt information according to the voltage detection result of the voltage detection circuit 13 on the plurality of input sources 11.

[0044] The voltage detection result of the input source 11 refers to the voltage detection result obtained by detecting the power supply status of the input source 11. The power supply status of the battery compartment 112 mainly includes the loading status information of the batteries in each battery compartment 112 and the battery compartment power information.

[0045] The multi-battery compartment power supply circuit provided in the above embodiment, through the design of the multi-battery compartment power supply circuit, the electronic device can use multiple battery compartments 112 to meet the long-term continuous power demand when an external power supply cannot be used. The main control circuit 14 can promptly determine the battery compartment with insufficient power among the multiple battery compartments 112, and output battery compartment replacement prompt information, so that the user can replace the battery compartment with insufficient power in time when there is still a battery compartment 112 with sufficient power to meet the use requirements among the multiple battery compartments 112 according to the battery compartment replacement prompt information output by the main control circuit 14. The battery replacement can be performed without powering off and restarting the device, thereby effectively improving the continuous use time of the device without power failure.

[0046] In some embodiments, the input source 11 also includes an external power supply 111. The external power supply 111 may refer to a mains power supply, a power bank or other electronic device connected via an adapter. For ease of understanding and description, an electronic device that uses a multi-battery compartment power supply circuit provided in an embodiment of the present application is referred to as a multi-battery compartment device. In an embodiment of the present application, the multi-battery compartment device is connected to an external power supply 111, which may refer to the multi-battery compartment device being connected to a mains power supply, a power bank or other electronic device via an adapter, a power cord with a preset type of interface, or the like.

[0047] The input source 11 includes multiple battery compartments 112 and an external power source 111. The power supply state of the input source 11 includes whether the external power source 111 is in a connected power supply state, the battery loading state information in each battery compartment 112, and whether each battery compartment 112 is in a power supply state as indicated by the battery compartment power information. The load state refers to the degree of workload borne by the multi-battery compartment device during operation, which can usually be divided into different states such as light load, medium load and heavy load. Different load states correspond to different output voltages of the multi-battery compartment power supply circuit, that is, the output voltage of each input selection circuit 121. The power supply states of different input sources 11 correspond to the input voltages of each input selection circuit 121. In this way, the switch tube in the input selection circuit 121 corresponding to each input source 11 will automatically switch the power supply according to the power supply state and load state of the corresponding input source 11. When there is no external power supply 111 connected, the power path selection circuit 12 can realize relatively independent power supply control of multiple battery compartments 112. Through the design of the power path selection circuit 12, multiple battery compartments 112 support relatively independent power supply control, so that when there are still battery compartments 112 with sufficient power to meet the usage requirements among the multiple battery compartments 112, the individual battery compartments 112 with insufficient power can be replaced independently in time, and the battery replacement can be performed without powering off and restarting the device. This provides a basis.

[0048] The voltage detection circuit 13 performs voltage detection on multiple input sources 11, wherein when the external power source 111 is not connected, the voltage detection result of the voltage detection circuit 13 for the external power source 111 corresponds to zero input. The voltage detection result of the voltage detection for each battery compartment 112 corresponds to the current remaining power of each battery compartment 112. The main control circuit 14 can determine whether the external power source 111 is currently connected and the current power of each battery compartment 112 based on the voltage detection result of the voltage detection circuit 13, so that the battery compartment 112 that needs to be replaced can be identified in time, and the battery compartment replacement prompt information can be output to remind the user to complete the battery replacement in time.

[0049] It should be noted that in the multi-battery compartment power supply circuit provided in the embodiment of the present application, the input source 11 includes multiple battery compartments 112 and supports independent replacement of the battery compartments 112 without powering off the multi-battery compartment device. When the multi-battery compartment device is designed to support access to an external power supply 111, the power path selection circuit 12 is configured to further include an input selection circuit 121 for connecting to the external power supply 111.

[0050] Please refer to Figure 2In some embodiments, each input selection circuit 121 includes an input terminal 1211 connected to the input source 11 and an output terminal 1212 connected to the load; the switch tube is turned on or off according to whether the input voltage of the input terminal 1211 and the output voltage of the output terminal 1212 meet the preset conditions, so as to control the corresponding input source 11 to supply power or disconnect the power supply. In the embodiment of the present application, the load refers to a system of multi-battery compartment equipment, the output terminals 1212 of the multi-way input selection circuit 121 are all connected to the equipment system, and the input terminals 1211 are respectively connected to each input source 11. The switch tube can be a field effect (MOS) tube, which can be an NMOS tube or a PMOS tube. For the sake of ease of understanding and explanation, taking the battery compartment 112 including the first battery compartment BAT1 and the second battery compartment BAT2 as an example, the three-way input selection circuit 121 corresponding to the external power supply 111, the first battery compartment BAT1 and the second battery compartment BAT2, the switch tubes are the first switch tube Q7, the second switch tube Q8 and the third switch tube Q9 respectively. The switch tubes in each input selection circuit 121 are automatically turned on or off according to whether the preset conditions are met between the input voltage and the output voltage. In a specific example, the preset condition may be that the input voltage of the MOS tube is greater than the output voltage +20mV. For the input selection circuit 121 corresponding to each battery compartment 112, the multi-battery device can automatically switch the power supply according to the current light load or heavy load system working state, and the current power state of the corresponding battery compartment 112, thereby ensuring the normal operation of the multi-battery compartment device and providing a basis for replacing individual battery compartments 112 in the multi-battery compartment 112 without having to power off and restart the system.

[0051] Optionally, each input selection circuit 121 further includes a comparison circuit 1213; the comparison circuit 1213 includes a non-inverting input connected to the input terminal 1211, an inverting input connected to the output terminal 1212, and a driving output connected to the control terminal of the switch tube. When the input voltage exceeds the preset value of the output voltage, the switch tube is turned on; when the input voltage does not meet the preset value of the output voltage, the switch tube is turned off. In this embodiment, the introduction of the comparison circuit 1213 in each input selection circuit 121 can set the comparison of the input voltage and the output voltage of the input selection circuit 121 to be performed by the comparison circuit 1213, and the switch tube (MOS tube) generates a turn-on or turn-off action according to different comparison results of the comparison circuit 1213. In this way, the comparison circuit 1213 and the switch tube together form an ideal diode, and the turn-on or turn-off condition of the switch tube is set and adjusted by the comparison circuit 1213, and can no longer be limited by the selected switch tube type.

[0052] It should be noted that the comparison circuit 1213 may be a single comparator or a combination of multiple comparators, or may be an IC having a comparator function. Figure 2Taking the illustrated embodiment as an example, in the three-way input selection circuit 121 corresponding to the external power supply 111, the first battery compartment BAT1 and the second battery compartment BAT2, respectively, the comparison circuit 1213 connected to the first switch tube Q7 includes a first comparator chip U6, and the first switch tube Q7 and the first comparator chip U6 form an ideal diode; the comparison circuit 1213 connected to the second switch tube Q8 includes a second comparator chip U7, and the second switch tube Q8 and the second comparator chip U7 form an ideal diode; the comparison circuit 1213 connected to the third switch tube Q9 includes a third comparator chip U8, and the third switch tube Q9 and the third comparator chip U8 form an ideal diode. In an optional example, multiple battery compartments 112 and the external power supply 111 are all selected by an ideal diode, and the working principle of a single ideal diode is: when the input voltage of the ideal diode MOS tube is greater than the output voltage +20mV, the ideal diode is turned on; when the input voltage of the ideal diode MOS tube is less than the output voltage +20mV, the current backflow protection is performed, and the ideal diode is turned off. The switching power supply principle of multiple ideal diodes: when using light load, the ideal diode of the input source 11 with higher voltage among the multiple input sources 11 is turned on. If the difference of the multiple input sources 11 is small, the power supply is switched in turn; when using heavy load, the input voltage of the ideal diode MOS tube of the multiple input sources 11 is greater than the output voltage + 20mV, then the power supply is supplied at the same time, and the supply current of the one with higher voltage is larger; after running for a period of time, the voltage of the multiple input sources 11 is basically flat, and the supply current is flat.

[0053] In some embodiments, a buffer and undervoltage protection circuit 15 is provided between each input selection circuit 121 and the corresponding input source 11; the buffer and undervoltage protection circuit 15 includes a field effect transistor, the gate and drain of the field effect transistor are respectively connected to the positive electrode and the negative electrode of the corresponding input source 11, and the source of the field effect transistor is connected to the input terminal 1211 of the corresponding input selection circuit 121. The setting of the buffer and undervoltage protection circuit 15 can prevent the instantaneous large current generated by the reverse discharge or replacement of the battery from causing system abnormality or damage. For the convenience of description and distinction, it is still referred to as Figure 2 Taking the embodiment shown as an example, in the three-way buffer and undervoltage protection circuit 15 corresponding to the external power supply 111, the first battery compartment BAT1 and the second battery compartment BAT2, the field effect transistors are the fourth field effect transistor Q13, the fifth field effect transistor Q11 and the sixth field effect transistor Q12. Figure 3 , which is a schematic diagram of the relationship between the gate-source voltage (VGS voltage) and the on-current of the field effect transistor in the buffer and undervoltage protection circuit 15. The purpose of buffering can be achieved by controlling the current to gradually increase by using the slow change of VGS.

[0054] Optionally, the buffer and undervoltage protection circuit 15 further includes an RC circuit 151 connected between the gate and source of the corresponding field effect transistor. The RC circuit 151 utilizes the charging and discharging characteristics of the capacitor therein to assist in buffering the current change in the system circuit.

[0055] In some embodiments, the multi-battery compartment power supply circuit further includes a positive and negative connection circuit 16 corresponding to the multiple battery compartments 112; each positive and negative connection circuit 16 includes an H-bridge circuit composed of four field effect transistors. The H-bridge circuit is composed of four switch elements, such as four field effect transistors. By setting the H-bridge circuit corresponding to the battery compartment 112, the output polarity of the H-bridge circuit can be changed through the on-off state of these switch elements. Therefore, the positive and negative poles of each battery compartment 112 can be arbitrarily swapped when the battery is installed, which can reduce the probability of errors when the user replaces the battery compartment 112.

[0056] In some embodiments, the multi-battery compartment power supply circuit also includes a power state detection circuit 17, which is connected between the external power supply 111 and the main control circuit 14, and is used to detect the access status of the external power supply 111 and output the access status information to the main control circuit 14. The setting of the power state detection circuit 17 can perform targeted detection on whether the external power supply 111 is connected, which is conducive to the main control circuit 14 to distinguish more directly and accurately whether the current state is the external power supply 111 according to the access status information detected by the power state detection circuit 17. When the main control circuit 14 determines that the current state of the external power supply 111 is powered according to the detection result of the power state detection circuit 17, it can further perform voltage detection through the voltage detection circuit 13, and perform functions such as state monitoring based on the voltage detection result of the voltage detection circuit 13.

[0057] In some embodiments, the multi-battery compartment power supply circuit includes a display circuit connected to the main control circuit 14; the display circuit includes a display screen 18, and the main control circuit 14 is used to control the display screen 18 to display the battery compartment replacement prompt information in the display interface. The display circuit displays a graphical user interface through the display screen 18, and displays the battery compartment replacement prompt information output by the main control circuit 14 through the graphical user interface.

[0058] Optionally, the battery compartment replacement prompt information includes at least one of the following:

[0059] The access status information of the external power source 111 and the battery compartment power information corresponding to each of the multiple battery compartments 112; wherein the power supply status of the external power source 111 mainly refers to the access status information of the external power source, and the power supply status of the battery compartment 112 mainly refers to the battery loading status information and the battery compartment power information corresponding to each battery compartment when the battery is loaded;

[0060] The target battery compartment prompt information that currently needs to be replaced;

[0061] The target battery compartment that is currently allowed to perform the replacement operation is prompted to allow replacement;

[0062] Currently, replacing the battery compartment 112 will cause the system to display an abnormal replacement danger prompt message.

[0063] See also Figure 4 and Figure 5 Taking the multiple battery compartments 112 including two battery compartments as an example, the battery compartment power information is displayed in the left and right symmetrical power grids in the graphical user interface. The current remaining power is indicated by the filling display of the grids in the power grids, and the proportion of the current remaining power of the corresponding battery compartment 112 to the full power is directly displayed on one side of the corresponding power grid. The access status information of the external power supply 111 is the plug icon displayed in the middle of the left and right symmetrical power grids. When the external power supply 111 is connected, the plug icon is displayed; otherwise, the plug icon is not displayed. The target battery compartment prompt information that currently needs to be replaced, the target battery compartment that currently allows the replacement operation to be performed, and the replacement danger prompt information that the current replacement of the battery compartment 112 will cause the system abnormality can all be text prompt information displayed at a specified position in the graphical user interface. For example, a prompt information display area 181 is set above the graphical user interface. If the target battery compartment that currently needs to be replaced is the right battery compartment, the prompt information display area 181 will display the right battery compartment power is low, please replace it in time.

[0064] In some embodiments, the main control circuit 14 determines the battery compartment replacement prompt information according to the voltage detection results of the multiple input sources 11 according to at least one of the following:

[0065] When the external power source 111 is connected, the plurality of battery compartments 112 are in a state where a replacement prompt message is provided indicating that a replacement operation can be performed;

[0066] When the external power source 111 is not connected, based on the battery compartment power information of the multiple battery compartments 112, when the power of at least one battery compartment 112 is greater than the power-off power, the other battery compartments 112 whose power is greater than the power-off power and lower than the power-off power are determined as target battery compartments, and a replacement prompt message is outputted indicating that the target battery compartment needs to be replaced;

[0067] When the external power supply 111 is not connected, based on the battery compartment power information of multiple battery compartments 112, when the power of the battery compartments 112 is lower than the low power level and greater than the power-off power level, it is determined that the current replacement of the battery compartment 112 will cause a system abnormal replacement danger prompt information.

[0068] The power of each battery compartment 112 is divided according to the battery voltage. In an optional example, the relationship between the division of the power of each battery compartment 112 and the detected battery voltage of the corresponding battery compartment 112 is shown in the following table:

[0069] Battery level Battery voltage 4 grid 7.8V-8.4V 3 grids 7.4V-7.8V 2 grid 7V-7.4V 1 grid 6.2V-7V Red Grid 5.6V-6.2V Shutdown ＜5.6V

[0070] Please refer to Figure 6 , the main control circuit 14 determines the battery compartment replacement prompt information based on the voltage detection results of multiple input sources 11, taking the battery compartment including the left and right battery compartments as an example, the battery compartment power of the left battery compartment is represented by B1, and the battery compartment power of the right battery compartment is represented by B2, including: S11, system power on. S12, detect the access status of the external power supply. If the external power supply is connected, execute S121, and the external power icon is displayed in the graphical user interface. S122, each battery compartment allows replacement. When the external power supply is input, the batteries in each battery compartment do not need to work and can be replaced at any time. At this time, the battery compartment replacement prompt information can be a replacement prompt information that allows multiple battery compartments to perform replacement operations. If the external power supply is not connected, S13, perform voltage detection on each battery compartment and the system. S131, display the power of the left and right battery compartments. According to the comparison of the power of the left and right battery compartments with the corresponding thresholds, different battery compartment replacement prompt information is output, including: S14, V 亏 ≤B1, and V 亏 ≤B2; S141, can be replaced at any time; S15, V 关 ≤B1<V 亏 、V 亏 ≤B2; S151, B1 The battery needs to be replaced immediately; S16, V 关 ≤B1<V 亏 、V 关 ≤B2<V 亏 ; S161, low battery, change danger warning information. S17, B1<V 亏 、B2<V 关 ; S171, the battery is seriously low and the system is shutting down.

[0071] like Figure 6 In the illustrated embodiment, the battery compartment replacement prompt information displayed in the graphical user interface includes the connection status of the external power supply 111 and the battery compartment power information corresponding to the multiple battery compartments 112 outputted in accordance with steps S12 and S13; the replacement-allowed prompt information that the multiple battery compartments 112 can all be replaced, which is outputted in accordance with step S122 or step S141; the replacement prompt information that the target battery compartment needs to be replaced, which is outputted in accordance with step S151; and the replacement danger prompt information that the current replacement of the battery compartment 112 will cause system abnormality, which is outputted in accordance with the step S161.

[0072] In some embodiments, when the main control circuit 14 determines that the current replacement of the battery compartment 112 will cause system abnormality, the control target high power consumption function is turned off, and after at least one battery compartment 112 is replaced, the control target high power consumption function is turned on. Figure 5 Here, when the multi-battery compartment power supply circuit further determines that the current replacement of the battery compartment 112 may cause system abnormality, it automatically shuts down high-power consumption functions in the system, such as reducing image brightness, shutting down wifi, laser ranging, recording, GPS, infrared imaging and other functions, so as to avoid the problem of system power failure when replacing the battery at this time as much as possible, and then turns on these high-power consumption functions after the battery compartment 112 is replaced.

[0073] It should be noted that according to the design principle of the multi-battery compartment power supply circuit provided in the embodiment of the present application, the power supply circuit will perform relatively independent power supply switching control on the multiple battery compartments 112 according to the power status of the multiple battery compartments 112 and the equipment load status, and promptly provide a replacement prompt when a battery compartment 112 is low on power. Since the multiple battery compartments 112 support relatively independent power supply switching control, when replacing a battery compartment with insufficient power, the system does not need to be powered off and restarted, which can effectively improve the purpose of continuous use of the equipment without power failure. The ideal diode is used in the power path selection circuit 12 to realize switching power supply, which can realize seamless switching of multiple input sources 11 and reduce losses. The setting of the buffer and undervoltage protection circuit 15 in the multi-battery compartment power supply circuit can further improve the safety of the battery compartment 112 replacement operation. The setting of the positive and reverse connection circuit 16 in the multi-battery compartment power supply circuit allows the battery compartment 112 to be installed without distinguishing polarity, reducing the error probability of the replacement operation, making the replacement simple and quick.

[0074] See also Figures 7 to 16 On the other hand, the embodiment of the present application further provides a multi-battery compartment device, including a plurality of battery compartments 112 and a multi-battery compartment power supply circuit according to any embodiment of the present application. Each battery compartment 112 includes a battery compartment housing 21 for storing batteries and a battery compartment upper cover 22 corresponding to the battery compartment housing 21, and the battery compartment upper cover 22 is covered at the open end 210 of the battery compartment housing 21 to seal the battery in the corresponding battery compartment housing 21.

[0075] The number of batteries installed in each battery compartment 112 can be a single battery, a group of batteries, or a larger number of batteries than two batteries. However, each battery compartment 112 is a relatively independent power supply unit that can independently supply power to a system of a multi-battery compartment device. Figure 7 As shown, two batteries can be installed in each battery compartment housing 21 .

[0076] The number of battery compartment covers 22 and battery compartments 112 corresponds, and they are arranged one by one. For each battery compartment 112, the corresponding battery compartment cover 22 can be removed and the batteries installed therein can be replaced independently without affecting the use of other battery compartments 112. In this way, when there are still battery compartments 112 with sufficient power to meet the use requirements among multiple battery compartments 112, only the battery compartment 112 that is out of power needs to be replaced, and there is no need to power off and restart the multi-battery compartment device, thereby effectively improving the continuous use time of the device without power failure.

[0077] In some embodiments, please refer to Figures 12 to 16 A locking structure 24 is provided between the battery compartment housing 21 and the battery compartment upper cover 22; the battery compartment upper cover 22 includes a cover plate 221 and an operating portion 222 provided on the outer side of the cover plate 221; the locking structure 24 includes a reset member 223 provided on the inner side of the cover plate 221 and a locking portion 213 provided on the battery compartment housing 21 and corresponding to the reset member 223; under external force operation, the operating portion 222 drives the reset member 223 to move into the locking portion 213 and enter a locked state, or drives the reset member 223 to move out of the locking portion 213 and enter an unlocked state. A locking structure 24 is provided between each battery compartment upper cover 22 and the corresponding battery compartment housing 21. The locking or unlocking by the locking structure enables the battery compartment upper cover 22 to be independently opened or closed relative to the corresponding battery compartment housing 21. The locking structure 24 can improve the reliability of the replacement operation for individual battery compartments 112 in the multiple battery compartments 112.

[0078] In some embodiments, the locking structure 24 further includes a rotating member 224 disposed on the inner side of the cover plate 221, and the operating portion 222 is a knob; the knob rotates to drive the rotating member 224 to rotate, thereby pushing the reset member 223 to telescopically move relative to the locking portion 213 to switch between the locked state and the unlocked state. The reset member 223 is in tangential contact with the outer periphery of the rotating member 224. When the user needs to replace a battery compartment 112, the user can rotate the rotating member 224 by operating the knob of the battery compartment upper cover 22 of the corresponding battery compartment 112 to drive the reset member 223 to telescopically move and switch from the locked state to the unlocked state, so as to facilitate the replacement operation of the corresponding battery compartment 112.

[0079] The open end 210 of each battery compartment housing 21 is connected to its storage cavity 214, and the locking portion 213 is a locking hole provided at the battery compartment housing 21 near the open end 210; each battery compartment upper cover 22 is provided on the open end 210, the battery compartment upper cover 22 is closed and the reset member 223 is inserted into the locking hole, so that the battery is sealedly installed in the storage cavity 214 of the corresponding battery compartment housing 21. Among them, the matching design of the reset member 223 and the locking hole, the reset member 223 can be retracted and inserted into the locking hole to quickly form a reliable locked state, or can be withdrawn from the locking hole to quickly release the lock and switch to the unlocked state.

[0080] In some embodiments, the battery compartment cover 22 further includes an isolation cover 23 connected to the inner side of the cover plate 221; a positive pole spring and a negative pole spring are provided on the isolation cover 23 facing the inside of the battery compartment housing 21; a positive pole spring and a negative pole spring are provided on the bottom of the battery compartment housing 21 facing the battery compartment cover 22. The height of the positive pole spring is greater than the height of the negative pole spring. The battery compartment housing 21 and the battery compartment cover 22 are respectively provided with a positive pole spring and a negative pole spring, which can improve the stability of the battery installation, ensure good electrical connection of the battery, and be compatible with different battery types such as pointed batteries and flat batteries.

[0081] The multi-battery compartment device also includes a battery compartment 20, which is provided with a storage space for storing multiple battery compartments 112; a locking groove is provided on the side wall of the battery compartment 20 at a position corresponding to the locking portion 213 of the battery compartment housing 21. The design of the battery compartment 20 can conveniently form multiple battery compartments 112 into an integrated battery product, which is convenient for overall carrying, installation or removal.

[0082] It should be noted that, in some embodiments, the battery compartment chamber 20 may also be formed on the battery shell for accommodating multiple separate battery compartment shells 21 in the same battery shell, and the multi-battery compartment device may be provided with a battery mounting portion on its own device housing, and the battery mounting portion may be a battery assembly space that matches the shape and size of the battery shell for the battery shell to be installed and fixed.

[0083] In some embodiments, a sealing and shockproof structure is provided between each battery compartment housing 21 and its corresponding battery compartment upper cover 22. Figures 7 to 11As shown, the sealing and shockproof structure includes a first waterproof pad 215 provided at the bottom of the battery compartment housing 21, located below the corresponding positive spring and negative spring, and the shape of the first waterproof pad 215 is the same as the cross-sectional shape of the battery; and / or, a second waterproof pad 225 provided on the battery compartment upper cover 22, located outside the corresponding positive spring and negative spring, and the shape of the second waterproof pad 225 is the same as the cross-sectional shape of the battery. Among them, the first waterproof pad 215 and the second waterproof pad 225 can both be waterproof rubber pads, and the positive spring and the negative spring are respectively matched with the corresponding first waterproof pad 215 and the second waterproof pad 225, which can better fix the battery when it is installed therein, prevent shock and waterproof, and utilize the elastic action of the spring and rubber to provide the battery with an axial movement amount in the storage cavity 214 of the battery compartment housing 21, so as to be more conducive to adjusting the locking structure 24 by operating the knob.

[0084] In some embodiments, a sealing and waterproof structure is further provided between each battery compartment housing 21 and its corresponding battery compartment upper cover 22. Figures 7 to 11 As shown, the sealing and waterproof structure includes a first sealing gasket 216 disposed along the periphery of the opening end 210 of the storage cavity 214; a step portion protruding toward the storage cavity 214 is formed on the inner side of the cover plate 221, and a reset member 223 is disposed on the step portion. The sealing and waterproof structure also includes a second sealing gasket 226 disposed along the outer periphery of the step portion. The first sealing gasket 216 and the second sealing gasket 226 can both be waterproof rubber gaskets, and the first sealing gasket 216 and the second sealing gasket 226 can improve the sealing performance of the corresponding battery compartment 112.

[0085] See also Fig.17 , a power supply method for a multi-battery compartment device provided in an embodiment of the present application, comprising:

[0086] S101, obtaining voltage detection results of multiple input sources; wherein the input source includes multiple battery compartments, and each of the input sources switches power supply based on the power supply state and load state of the corresponding input source through a correspondingly connected input selection circuit.

[0087] The voltage detection result of the input source can correspondingly represent the current power supply status of the input source.

[0088] Taking the input source including multiple battery compartments as an example, the power supply status of the input source includes whether batteries in each battery compartment are installed, and the remaining power of each battery installed in the battery compartment.

[0089] Taking the input source including an external power source and multiple battery compartments as an example, the power supply status of the input source includes the access status of the external power source, whether the batteries in each battery compartment are installed, and the remaining power status of each battery installed in the battery compartment. The power supply method of the multi-battery compartment device can be applied to the multi-battery compartment power supply circuit in the aforementioned embodiment, and the voltage is detected by the voltage detection circuit in the multi-battery compartment power supply circuit, and each input source switches the power supply based on its power supply status and load status through the input selection circuit connected to it.

[0090] S102, determining the battery compartment that needs to be replaced according to the voltage detection results of each of the input sources and outputting battery compartment replacement prompt information.

[0091] In the above embodiment, multiple battery compartments switch power supply through the input selection circuits connected to them accordingly based on the power supply status of the corresponding battery compartment and the load status of the system of the multi-battery compartment device. The multi-battery compartment device can obtain the voltage detection results of each input source in real time through the main control circuit of the multi-battery compartment power supply circuit, monitor and remind whether each battery compartment needs to be replaced, so that users can understand the need to replace the battery compartment in advance, realize safe replacement of the battery, and ensure the sustainable use of the multi-battery compartment device.

[0092] Optionally, step S102 includes:

[0093] The battery compartment power information of each battery compartment is determined based on the voltage detection results of each battery compartment; when the power of at least one battery compartment is greater than the power-deficient power, other battery compartments whose power is greater than the power-off power and lower than the power-deficient power are determined as target battery compartments, and replacement prompt information is output that the target battery compartments need to be replaced; when the power of the battery compartments is lower than the power-deficient power and greater than the power-off power, it is determined that the current replacement of the battery compartment will cause system abnormality, and replacement danger prompt information is output.

[0094] In the above embodiment, the user can detect the power of each battery compartment in real time according to the main control circuit, and replace the battery in the battery compartment that is short of power in a timely manner according to the battery compartment replacement prompt information output and the power of each battery compartment. Due to the setting of the multi-battery compartment power supply circuit, the multi-battery compartment device supports the relatively independent removal and replacement of the batteries in each battery compartment, thereby ensuring the sustainable use of the multi-battery compartment device. When the main control circuit detects and determines that the current battery replacement operation on the battery compartment will cause system abnormality, it outputs a replacement danger prompt information. At this time, the user can ensure that the multi-battery compartment device is connected to an external power supply before performing the battery replacement operation based on the prompt information.

[0095] In some embodiments, the input source further includes an external power source, and step S102 includes:

[0096] Determine whether the external power supply is connected according to the voltage detection result of the external power supply;

[0097] When it is determined that the external power supply is connected, a prompt message indicating that multiple battery compartments are in a state where replacement is allowed is output;

[0098] When the external power supply is not connected, the battery compartment power information of each battery compartment is determined according to the voltage detection results of each battery compartment. When the power of at least one battery compartment is greater than the power-off power, other battery compartments whose power is greater than the power-off power and lower than the power-off power are determined as target battery compartments, and replacement prompt information that the target battery compartment needs to be replaced is output;

[0099] When the power levels of the battery compartments are lower than the power-deficient power level and higher than the power-off power level, it is determined that current replacement of the battery compartment will cause system abnormality, and a replacement danger prompt message is output.

[0100] In the above embodiment, the multi-battery compartment device is designed to support connection to an external power source for use. At this time, it is first determined whether the multi-battery compartment device is currently connected to an external power source. When the external power source is connected, it is safe to replace the battery compartment at any time. When the external power source is not connected, the main control circuit detects the power of each battery compartment in real time and determines the necessity and safety of replacing the battery compartment.

[0101] In some embodiments, the power supply method for the multi-battery compartment device further includes:

[0102] When it is determined that the current replacement of the battery compartment will cause system abnormality, the target high power consumption function of the multi-battery compartment device is controlled to be turned off, and after at least one battery compartment is replaced, the target high power consumption function is controlled to be turned on.

[0103] Under extreme conditions where battery compartment replacement may cause system abnormalities, the main control circuit can intelligently control the opening and closing of target high-function functions to optimize system control under extreme conditions of insufficient power in the entire battery compartment system, thereby ensuring uninterrupted power supply to multi-battery compartment equipment to achieve battery replacement and improving the safety of battery replacement.

[0104] It should be noted that in the power supply method for a multi-battery compartment device provided in an embodiment of the present application, the battery compartment replacement prompt information output by the main control circuit may also include various types of information in the aforementioned embodiments, which will not be repeated here.

[0105] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0106] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A multi-battery compartment power supply circuit, characterized in that: include: A power path selection circuit (12), comprising a multi-channel input selection circuit (121) arranged corresponding to a plurality of input sources (11), the input source (11) comprising a plurality of battery compartments (112), each of the input selection circuits (121) comprising a switch tube connected to the corresponding input source (11), each of the switch tubes switching the power supply to the corresponding input source (11) according to the power supply state and load state of the corresponding input source (11); A voltage detection circuit (13) is connected to the plurality of input sources (11) respectively, and is used to perform voltage detection on the plurality of input sources (11); The main control circuit (14) is connected to the voltage detection circuit (13) and is used to determine the battery compartment that needs to be replaced and control the output of battery compartment replacement prompt information based on the voltage detection results of the voltage detection circuit (13) on the multiple input sources (11).

2. The multi-battery compartment power supply circuit according to claim 1, characterized in that: Each of the input selection circuits (121) comprises an input terminal (1211) connected to the corresponding input source (11) and an output terminal (1212) connected to a load; The switch tube is turned on or off according to whether the input voltage of the input end (1211) and the output voltage of the output end (1212) meet preset conditions, so as to control the corresponding input source (11) to supply power or disconnect power.

3. The multi-battery compartment power supply circuit according to claim 2, characterized in that: Each of the input selection circuits (121) further comprises a comparison circuit (1213); The comparison circuit (1213) comprises a non-inverting input connected to the input end (1211), an inverting input connected to the output end (1212), and a driving output connected to the control end of the switch tube; when the input voltage exceeds the preset output voltage value, the switch tube is turned on; when the input voltage does not exceed the preset output voltage value, the switch tube is turned off.

4. The multi-battery compartment power supply circuit according to claim 1, characterized in that: A buffer and undervoltage protection circuit (15) is provided between each input selection circuit (121) and the corresponding input source (11); The buffer and undervoltage protection circuit (15) comprises a field effect tube, the gate and drain of the field effect tube are respectively connected to the positive electrode and the negative electrode of the corresponding input source (11), and the source of the field effect tube is connected to the input end of the corresponding input selection circuit (121).

5. The multi-battery compartment power supply circuit according to claim 1, characterized in that: The multi-battery compartment power supply circuit further comprises a positive and negative connection circuit (16) arranged corresponding to the plurality of battery compartments (112); each of the positive and negative connection circuits (16) comprises an H-bridge circuit composed of four field effect transistors; and / or, The input source further includes an external power source (111), the multi-battery compartment power supply circuit further includes a power state detection circuit (17), the power state detection circuit (17) is connected between the external power source (111) and the main control circuit (14), and is used to detect the access state of the external power source (111) and output access state information to the main control circuit (14); and / or, The multi-battery compartment power supply circuit comprises a display circuit connected to the main control circuit (14); the display circuit comprises a display screen (18), and the main control circuit (14) is used to control the display screen (18) to display the battery compartment replacement prompt information in a display interface.

6. The multi-battery compartment power supply circuit according to claim 1, characterized in that: The input source further includes an external power source (111), and the battery compartment replacement prompt information includes at least one of the following: The power supply status of each input source, the power supply status including access status information of the external power source (111), loading status information of the batteries in each battery compartment (112), and battery compartment power information corresponding to each of the plurality of battery compartments (112); The target battery compartment prompt information that currently needs to be replaced; The target battery compartment that is currently allowed to perform the replacement operation is prompted to allow replacement; Replacing the battery compartment will cause the system to display an abnormal replacement danger prompt message.

7. A multi-battery compartment device, characterized in that: A multi-battery compartment power supply circuit comprising a plurality of battery compartments and any one of claims 1 to 6; Each of the battery compartments (112) comprises a battery compartment shell (21) for accommodating a battery and a battery compartment upper cover (22) arranged corresponding to the battery compartment shell (21); the battery compartment upper cover (22) is arranged to cover an opening end (210) of the battery compartment shell (21) so as to seal the battery in the corresponding battery compartment shell (21).

8. A power supply method for a multi-battery compartment device, characterized in that: include: Obtaining voltage detection results of multiple input sources; wherein the input sources include multiple battery compartments, and each of the input sources switches power supply based on the power supply state and load state of the corresponding input source through a correspondingly connected input selection circuit; According to the voltage detection results of each of the input sources, the battery compartment that needs to be replaced is determined and a battery compartment replacement prompt message is output.

9. The power supply method for multi-battery compartment equipment according to claim 8, characterized in that: The method of determining the battery compartment that needs to be replaced and outputting battery compartment replacement prompt information according to the voltage detection results of each input source includes: Determine the battery compartment power information of each battery compartment according to the voltage detection result of each battery compartment; when the power of at least one battery compartment is greater than the power-off power, determine the other battery compartments whose power is greater than the power-off power and lower than the power-off power as the target battery compartment, and output the replacement prompt information that the target battery compartment needs to be replaced; when the power of the battery compartments is lower than the power-off power and greater than the power-off power, determine that the current replacement of the battery compartment will cause system abnormality, and output the replacement danger prompt information; or, The input source also includes an external power supply, and whether the external power supply is connected is determined based on the voltage detection result of the external power supply; when it is determined that the external power supply is connected, a replacement prompt information is outputted, indicating that multiple battery compartments are in a state where replacement operations can be performed; when the external power supply is not connected, the battery compartment power information of each battery compartment is determined based on the voltage detection result of each battery compartment, and when the power of at least one battery compartment is greater than the power-deficient power, other battery compartments whose power is greater than the power-off power and lower than the power-deficient power are determined as target battery compartments, and replacement prompt information is outputted, indicating that the target battery compartments need to be replaced; when the power of the battery compartments is lower than the power-deficient power and greater than the power-off power, it is determined that the current replacement of the battery compartment will cause system abnormality, and a replacement danger prompt information is outputted.

10. The power supply method for multi-battery compartment equipment according to claim 8, characterized in that: Also includes: When it is determined that the current replacement of the battery compartment will cause system abnormality, the target high power consumption function of the multi-battery compartment device is controlled to be turned off, and after at least one battery compartment is replaced, the target high power consumption function is controlled to be turned on.

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