Battery switching device and endoscope

Abstract

The utility model discloses a battery switching device and an endoscope, the battery switching device comprises a primary battery compartment, a secondary battery compartment and a total battery compartment, the primary battery compartment is provided with a first battery and a first connector electrically connected with the first battery; the secondary battery bin is provided with a second connector, a third connector, a battery switching circuit and a second battery, the second connector and the third connector are oppositely arranged, the first connector and the second connector are oppositely arranged and detachably and electrically connected, and the battery switching circuit is used for switching the first battery or the second battery to be conducted to the third connector; the main battery bin is provided with a containing space and a fourth connector arranged in the containing space, the primary battery bin and the secondary battery bin are arranged in the containing space in series, the secondary battery bin is close to the fourth connector relative to the primary battery bin, the fourth connector and the third connector are oppositely arranged and detachably and electrically connected, and the fourth connector is used for supplying power to the outside. Therefore, the convenient reuse of the battery in the battery switching device can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, in particular to a battery switching device and an endoscope. BACKGROUND

[0002] In order to realize uninterrupted operation of electronic equipment, electronic equipment in some special operation scenarios is usually configured with a battery switching device to realize main and standby battery switching.

[0003] At present, the existing battery switching device is usually composed of multiple batteries and a battery switching circuit for switching on different batteries. Although there are various layout methods of battery switching circuits in the prior art, the existing battery switching device still cannot meet the use requirements in some special operation scenarios. For example, in some industrial operation scenarios, it is required that the battery can be conveniently reused. Therefore, how to realize the convenient reuse of the battery in the battery switching device has become a problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The technical problem solved by the present application is to provide a battery switching device and an endoscope, which can realize the convenient reuse of the battery in the battery switching device.

[0005] In order to solve the above technical problem, the first aspect of the present application provides a battery switching device, comprising: a primary battery compartment, a secondary battery compartment and a total battery compartment, the primary battery compartment is provided with a first battery and a first connector electrically connected with the first battery; the secondary battery compartment is provided with a second connector and a third connector arranged oppositely, a battery switching circuit electrically connected between the second connector and the third connector, and a second battery electrically connected to the battery switching circuit, the first connector and the second connector are arranged oppositely and detachably connected, and the battery switching circuit is used to switch the first battery or the second battery to be conducted to the third connector; the total battery compartment is provided with a containing space and a fourth connector arranged in the containing space, the primary battery compartment and the secondary battery compartment are arranged in series in the containing space, the secondary battery compartment is closer to the fourth connector relative to the primary battery compartment, the fourth connector and the third connector are arranged oppositely and detachably connected, and the fourth connector is used to supply power externally.

[0006] Therefore, the battery switching device comprises a primary battery compartment, a secondary battery compartment and a total battery compartment, the primary battery compartment is provided with a first battery and a first connector electrically connected with the first battery, the secondary battery compartment is provided with a second connector and a third connector oppositely arranged, a battery switching circuit electrically connected between the second connector and the third connector, and a second battery electrically connected with the battery switching circuit, the first connector and the second connector are oppositely arranged and detachably connected, and the battery switching circuit is used for switching the first battery or the second battery to be conducted to the third connector, the total battery compartment is provided with a containing space and a fourth connector arranged in the containing space, the primary battery compartment and the secondary battery compartment are arranged in series in the containing space, the secondary battery compartment is closer to the fourth connector relative to the primary battery compartment, and the fourth connector and the third connector are oppositely arranged and detachably connected, and the fourth connector is used for external power supply, since the first battery and the second battery are arranged in separate compartments, the second battery is closer to the fourth connector for external power supply relative to the first battery, and the primary battery compartment and the secondary battery compartment are arranged in series in the total battery compartment through a plurality of connectors, so that the first battery and the second battery can be switched to supply power under the premise of realizing the first battery and the second battery, and the primary battery compartment and the secondary battery compartment can be conveniently reused compared with the battery being arranged in the electronic device.

[0007] The battery switching circuit comprises: a first comparator comprising a first positive terminal, a first negative terminal and a first output terminal, the first positive terminal being electrically connected to the second connector, and the first negative terminal being electrically connected to a first reference voltage; a first MOS tube comprising a first gate, a first drain and a first source, the first gate being electrically connected to the first output terminal, the first drain being electrically connected to the second connector, and the first source being coupled to the third connector; and a second MOS tube comprising a second gate, a second drain and a second source, the second gate being electrically connected to the first output terminal, the second drain being electrically connected to the third connector, and the second source being electrically connected to the second battery.

[0008] Therefore, the battery switching circuit comprises a first comparator, a first MOS tube and a second MOS tube, the first comparator comprises a first positive terminal, a first negative terminal and a first output terminal, the first positive terminal is electrically connected to the second connector, and the first negative terminal is electrically connected to a first reference voltage, the first MOS tube comprises a first gate, a first drain and a first source, the first gate is electrically connected to the first output terminal, the first drain is electrically connected to the second connector, and the first source is coupled to the third connector, the second MOS tube comprises a second gate, a second drain and a second source, the second gate is electrically connected to the first output terminal, the first drain is electrically connected to the third connector, and the second source is electrically connected to the second battery, so that the first MOS tube and the second MOS tube can be triggered to be conducted or disconnected by the first comparator comparing the output voltage of the first battery with the first reference voltage, so as to switch the conduction between the first battery and the second battery to supply power to the outside.

[0009] The battery switching circuit further comprises a second comparator including a second noninverting terminal, a second inverting terminal and a second output terminal, the second noninverting terminal is electrically connected to the second connector, the second inverting terminal is electrically connected to a second reference voltage, and the second reference voltage is not lower than the first reference voltage; and a third MOS tube including a third gate, a third drain and a third source, the third gate is electrically connected to the second output terminal, the third drain is electrically connected between the first source and the third connector, and the third source is coupled to the second battery; wherein the third MOS tube and the first MOS tube are the same type of MOS tube.

[0010] Therefore, the battery switching circuit comprises the second comparator and the third MOS tube, the second comparator includes the second noninverting terminal, the second inverting terminal and the second output terminal, the second noninverting terminal is electrically connected to the second connector, the second inverting terminal is electrically connected to the second reference voltage, and the second reference voltage is not lower than the first reference voltage, the third MOS tube includes the third gate, the third drain and the third source, the third gate is electrically connected to the second output terminal, the third drain is electrically connected between the first source and the third connector, and the third source is coupled to the second battery, and the third MOS tube and the first MOS tube are the same type of MOS tube, so that the third MOS tube can be triggered to be turned on or turned off by the second comparator comparing the output voltage of the first battery with the second reference voltage, and the first battery can charge the second battery when the third MOS tube is turned on.

[0011] The battery switching circuit further comprises a fourth MOS tube including a fourth gate, a fourth drain and a fourth source, the fourth gate is electrically connected to the second output terminal, the fourth drain is electrically connected to the third source, and the fourth source is grounded, and the fourth MOS tube and the third MOS tube are the same type of MOS tube.

[0012] Therefore, the battery switching circuit comprises the fourth MOS tube, the fourth MOS tube includes the fourth gate, the fourth drain and the fourth source, the fourth gate is electrically connected to the second output terminal, the fourth drain is electrically connected to the third source, and the fourth source is grounded, and the fourth MOS tube and the third MOS tube are the same type of MOS tube, so that the fourth MOS tube can be triggered to be turned on or turned off by the second comparator comparing the output voltage of the first battery with the second reference voltage, and the first battery can charge the second battery when the third MOS tube is turned on.

[0013] The first comparator, the second comparator, the third MOS tube and the fourth MOS tube are integrated in the control chip.

[0014] Therefore, the first comparator, the second comparator, the third MOS tube and the fourth MOS tube are integrated in the control chip, which can greatly improve the integration of the battery switching circuit and help to reduce the size of the battery switching device.

[0015] The control chip is provided with a first ADC, the battery switching circuit includes a first resistor, the first resistor is electrically connected between the first MOS tube and the third connector, and the first ADC is connected across the first resistor.

[0016] Therefore, the control chip is provided with a first ADC, the battery switching circuit includes a first resistor, the first resistor is electrically connected between the first MOS tube and the third connector, and the first ADC is connected across the first resistor, so that the first ADC can realize current detection of the first battery charging and discharging through real-time detection, analog-to-digital conversion and other operations on the voltage across the first resistor.

[0017] The control chip is provided with a second ADC, the battery switching circuit includes a second resistor, the second resistor is electrically connected between the third MOS tube and the second battery, and the second ADC is connected across the second resistor.

[0018] Therefore, the control chip is provided with a second ADC, the battery switching circuit includes a second resistor, the second resistor is electrically connected between the third MOS tube and the second battery, and the second ADC is connected across the second resistor, so that the second ADC can realize current detection of the second battery charging and discharging through real-time detection, analog-to-digital conversion and other operations on the voltage across the second resistor.

[0019] The first MOS tube is an N-channel depletion type, and the second MOS tube is a P-channel enhancement type.

[0020] Therefore, the first MOS tube is set to an N-channel depletion type, and the second MOS tube is set to a P-channel enhancement type, which can assist the first comparator to compare the output voltage of the first battery with the first reference voltage to trigger conduction or disconnection, so as to switch the conduction between the first battery and the second battery to supply power to the outside.

[0021] The first battery compartment is further provided with a charging interface for plugging a charger and a power management module electrically connected between the charging interface and the first battery.

[0022] Therefore, the first battery compartment is further provided with a charging interface and a power management module, the charging interface is used for plugging a charger, and the power management module is electrically connected between the charging interface and the first battery, so that the first battery compartment can realize charging of the first battery through cooperation of the charging interface and the power management module.

[0023] The first connector and the second connector are a first type connector group matched with each other, the third connector and the fourth connector are a second type connector group matched with each other, the first type connector group and the second type connector group are of the same type or different types, and in the case that the first type connector group and the second type connector group are of the same type, the first type connector group and the second type connector group are both a blade connector group.

[0024] Therefore, the first connector and the second connector are matched with each other, the third connector and the fourth connector are matched with each other, the two groups of connectors are of the same type or different types, and in the case that the first group of connectors and the second group of connectors are of the same type, the first group of connectors and the second group of connectors are both groups of blade connectors, so that the convenience of detachable electrical connection can be improved.

[0025] The battery capacity of the first battery is higher than the battery capacity of the second battery.

[0026] Therefore, the battery capacity of the first battery is higher than the battery capacity of the second battery, and the first battery is located in the first battery compartment which is farther away from the fourth connector for external power supply than the second battery is located in the second battery compartment, so that the convenience of detaching the first battery compartment can be improved, and the continuous and stable operation of the electronic device can be further ensured.

[0027] To solve the above technical problems, the second aspect of the present application provides an endoscope, which at least comprises a host, a probe connected to the host, and a battery switching device as in the first aspect, and the battery switching device is electrically connected to the host.

[0028] Therefore, the endoscope at least comprises a host, a probe connected to the host, and a battery switching device as in the first aspect, and the battery switching device is electrically connected to the host, so that the convenient reuse of the endoscope battery can be realized, and the continuous, stable and uninterrupted operation of the endoscope can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of an embodiment of the battery switching device of the present application;

[0030] Figure 2 is a structural schematic diagram of another embodiment of the battery switching device of the present application;

[0031] Figure 3 is a structural schematic diagram of another embodiment of the battery switching device of the present application;

[0032] Figure 4 is a structural schematic diagram of another embodiment of the battery switching device of the present application;

[0033] Figure 5 is a structural schematic diagram of another embodiment of the battery switching device of the present application;

[0034] Figure 6 is a structural schematic diagram of an embodiment of the endoscope of the present application;

[0035] Figure 7 is a structural schematic diagram of another embodiment of the endoscope of the present application. DETAILED DESCRIPTION

[0036] The scheme of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] In the following description, for the purposes of explanation and not limitation, specific details are set forth such as particular architectures, interfaces, techniques, etc. in order to provide a thorough understanding of the present application.

[0038] The terms "system" and "network" are often used interchangeably herein. The term "and / or" herein merely describes an associated relationship, which means that there can be three relationships, for example, A and / or B, which means that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects. In addition, "multiple" herein means two or more than two.

[0039] Please refer to Figure 1 , Figure 1 is a structural schematic diagram of an embodiment of the battery switching device of the present application. As shown in Figure 1 , the battery switching device 10 comprises a primary battery compartment 11, a secondary battery compartment 12, and a total battery compartment 13. The primary battery compartment 11 is provided with a first battery 111 and a first connector 112 electrically connected to the first battery 111. The secondary battery compartment 12 is provided with oppositely arranged second and third connectors 121 and 122, a battery switching circuit 123 electrically connected between the second and third connectors 121 and 122, and a second battery 124 electrically connected to the battery switching circuit 123. The first connector 112 and the second connector 121 are oppositely arranged and detachably electrically connected, and the battery switching circuit 123 is used to switch the first battery 111 or the second battery 124 to be conducted to the third connector 122. The total battery compartment 13 is provided with a containing space 131 and a fourth connector 132 arranged in the containing space 131. The primary battery compartment 11 and the secondary battery compartment 12 are arranged in series in the containing space 131, and the secondary battery compartment 12 is closer to the fourth connector 132 than the primary battery compartment 11. The fourth connector 132 and the third connector 122 are oppositely arranged and detachably electrically connected, and the fourth connector 132 is used to supply power externally. It should be noted that Figure 1The size of the accommodation space 131 is greater than the size of the first battery compartment 11 and the size of the second battery compartment 12 in the illustration, only to facilitate clear illustration of the accommodation space 131. But in actual application, it is not limited thereto. For example, the size of the accommodation space 131 can also be equal to the size of the first battery compartment 11 and the size of the second battery compartment 12. Exemplarily, the first battery compartment 11 and the second battery compartment 12, and the total battery compartment 13 can be cylindrical, and the outer diameters of the first battery compartment 11 and the second battery compartment 12 can both be equal to the inner diameter of the total battery compartment 13 (i.e. the diameter of the accommodation space 131). Of course, the above examples are only a few possible examples in actual application, and the shape, size, etc. of the first battery compartment 11, the second battery compartment 12 and the total battery compartment 13 are not limited herein, and it is appropriate that the first battery compartment 11 and the second battery compartment 12 can be stably arranged in the accommodation space 131 of the total battery compartment 13, and examples are not repeated herein.

[0040] In one implementation scenario, please continue to refer to Figure 1 The first battery compartment 11 can also be provided with a charging interface 113 and a power management module 114, the charging interface 113 can be used for plugging in a charger, and the power management module 114 can be electrically connected between the charging interface and the first battery. Exemplarily, the charging interface 113 can include but is not limited to: type-C, traditional cylindrical DC interface, etc., and the type of the charging interface 113 is not limited herein. In addition, the power management module 114 can include but is not limited to: a battery protection board, a power meter, a charging management unit, etc., and the specific composition of the power management module 114 is not limited herein.

[0041] In one implementation scenario, as one possible example, the battery capacity of the first battery 111 is higher than the battery capacity of the second battery 124, so that when the first battery 111 in the first battery compartment 11 is out of power or insufficient, the second battery 124 in the second battery compartment 12 can still support the device to run for a period of time, and after the first battery 111 in the first battery compartment 11 is sufficient (such as replacing a new first battery compartment 11, or using the charging interface 113 and the power management module 114 on the first battery compartment 11 to charge the first battery 111), the long-time power supply can be continued. Of course, the battery capacity of the first battery 111 can also be equal to the battery capacity of the second battery 124. Or, in some customized scenarios, the battery capacity of the first battery 111 can also be less than the battery capacity of the second battery 124. The size relationship between the battery capacity of the first battery 111 and the battery capacity of the second battery 124 is not limited herein.

[0042] In one embodiment, the first connector 112 and the second connector 121 are a first type of connector group matched with each other, the third connector 122 and the fourth connector 132 are a second type of connector group matched with each other, the first type of connector group and the second type of connector group are of the same type or different types, and in the case that the first type of connector group and the second type of connector group are of the same type, the first type of connector group and the second type of connector group can both be a blade connector group. Of course, the above example is only one possible example of the connector group in actual application, and the specific type of the connector group is not limited herein. For example, the connector group can also be a pin interface connector, and the like, which will not be exemplified one by one herein. In addition, as one possible example, each connector in the connector group can include itself and an interface plate (not shown) on the battery compartment for electrical connection with the connector.

[0043] In one embodiment, the object to which the fourth connector 132 supplies power can be different according to the device in which the battery switching device 10 is located. For example, in the case that the device in which the battery switching device 10 is located is a notebook computer, the object to which the fourth connector 132 supplies power can include, but is not limited to, a mainboard, a screen, and the like; or in the case that the device in which the battery switching device 10 is located is a robot, the object to which the fourth connector 132 supplies power can include, but is not limited to, a host, a drive, and the like, and other possible cases will not be exemplified one by one herein.

[0044] In one embodiment, although the circuit layout of the battery switching circuit 123 is various, for example, the battery switching circuit 123 can be composed of a switching element (exemplarily, the switching element can be controlled by a physical button to manually switch on the first battery 111 or the second battery 124), or the battery switching circuit 123 can further include a comparator (exemplarily, the comparator can compare the output voltage of the first battery 111 with a reference voltage and output a digital signal such as 0 or 1 according to the comparison result, and the switching element can select to switch on the first battery 111 or the second battery 124 under the triggering of the digital signal) in addition to the switching element, and the present embodiment exemplarily provides one possible layout of the battery switching circuit 123. It should be noted that the battery switching circuit 123 does not mean only one layout as described in the present embodiment, and other layout methods such as the above layout method or other layout methods in the prior art can also be adopted as appropriate to be able to switch on the first battery 111 or the second battery 124, and will not be exemplified one by one herein. Please refer to Figure 2 Figure 2 is a structural schematic diagram of another embodiment of the battery switching device of the present application. As shown in Figure 2 ​As shown, the battery switching circuit 123 can specifically include a first comparator U1, a first MOS Q1 and a second MOS Q2. The first comparator U1 includes a first non-inverting terminal i1+, a first inverting terminal i1- and a first output terminal o1. The first non-inverting terminal i1+ is electrically connected to the second connector 121, and the first inverting terminal i1- is electrically connected to a first reference voltage ref1. The first MOS Q1 includes a first gate G1, a first drain D1 and a first source S1. The first gate G1 is electrically connected to the first output terminal o1, the first drain D1 is electrically connected to the second connector 121, and the first source S1 is coupled to the third connector 122. The second MOS Q2 includes a second gate G2, a second drain D2 and a second source S2. The second gate G2 is electrically connected to the first output terminal o1, the second drain D2 is electrically connected to the third connector 122, and the second source S2 is electrically connected to the second battery 124. Exemplarily, the first MOS Q1 can be an N-channel depletion type, and the second MOS Q2 can be a P-channel enhancement type. Of course, the above example is only one possible type of the first MOS Q1 and the second MOS Q2, and other possible cases are not exemplified here. It should be noted that the first reference voltage ref1 can be set as a threshold voltage for the normal operation of the first battery 111. When the output voltage of the first battery 111 is higher than the threshold voltage, the first output terminal o1 of the first comparator U1 can output a first trigger signal (e.g., a digital signal 1, etc.) to represent that the first battery 111 has normal power, and then the first MOS Q1 is opened by the first trigger signal. At this time, the first battery 111 is turned on to the third connector 122, and the second MOS is closed by the first trigger signal. Conversely, when the output voltage of the first battery 111 is lower than the threshold voltage or the first battery 111 is removed, the first output terminal o1 of the first comparator U1 can output a second trigger signal (e.g., a digital signal 0, etc.) to represent that the first battery 111 has insufficient power (or is removed), and then the first MOS Q1 is closed by the second trigger signal. At this time, the second battery 124 is turned on to the third connector 122.

[0045] In one specific implementation scenario, please refer to Figure 3 , Figure 3 is a structural schematic diagram of another embodiment of the battery switching device of the present application. As shown in Figure 3As shown, the battery switching circuit 123 can further include a second comparator U2 and a third MOS Q3. The second comparator U2 includes a second non-inverting terminal i2+, a second inverting terminal i2-, and a second output terminal o2, the second non-inverting terminal i2+ is electrically connected to the second connector 121, the second inverting terminal i2- is electrically connected to a second reference voltage ref2, and the second reference voltage ref2 is not lower than the first reference voltage ref1. The third MOS Q3 includes a third gate G3, a third drain D3, and a third source S3, the third gate G3 is electrically connected to the second output terminal o2, the third drain D3 is electrically connected between the first source S1 and the third connector 122, and the third source S3 is coupled to the second battery 124; wherein the third MOS Q3 and the first MOS Q1 are the same type of MOS. For example, when the first MOS Q1 is an N-channel depletion type, the third MOS Q3 is also an N-channel depletion type. As a possible example, the second reference voltage ref2 can be set as the battery voltage of the second battery 124, in which case, when the output voltage of the first battery 111 is higher than the second reference voltage, the working states of the first comparator U1, the first MOS, and the second MOS can still refer to the foregoing, which will not be described here again, and the second comparator U2 can output a third trigger signal (such as a digital signal 1, etc.), the third MOS Q3 is opened by the third trigger signal, at this time the first battery 111 is also conducted to the second battery 124 to charge the second battery 124; on the contrary, when the output voltage of the first battery 111 is higher than the first reference voltage but lower than the second reference voltage, the working states of the first comparator U1, the first MOS, and the second MOS can still refer to the foregoing, which will not be described here again, but the second comparator U2 can output a fourth trigger signal (such as a digital signal 0, etc.), the third MOS Q3 is disconnected by the fourth trigger signal, at this time the first battery 111 is only conducted to the third connector 122, and cannot charge the second battery 124. In addition, when the output voltage of the first battery 111 is lower than the first reference voltage, the working states of the first comparator U1, the first MOS, and the second MOS can still refer to the foregoing, which will not be described here again, and the second comparator U2 can still output the fourth trigger signal, the third MOS Q3 is disconnected by the fourth trigger signal, at this time the first battery 111 is neither conducted to the third connector 122 nor conducted to the second battery 124, and only the second battery 124 is conducted to the third connector 122.Therefore, through the above state switching, the first battery 111 can charge the second battery 124 and supply power to the outside through the third connector 122 and the fourth connector 132 when the first battery 111 has sufficient power (e.g., the first battery 111 is not charging but the output voltage is large, or the first battery 111 is charging and the output voltage is large), can only supply power to the outside and cannot charge the second battery 124 when the first battery 111 is discharged to a certain extent, and cannot supply power to the outside and the second battery 124 supplies power to the outside through the third connector 122 and the fourth connector 132 when the first battery 111 continues to discharge to a certain extent.

[0046] In one specific implementation scenario, please refer to Figure 4 , Figure 4 is a structural schematic diagram of another embodiment of the battery switching device of the present application. As shown in Figure 4 , the battery switching circuit 123 can further include a fourth MOS tube Q4, including a fourth gate G4, a fourth drain D4 and a fourth source S4, the fourth gate G4 is electrically connected to the second output o2, the fourth drain D4 is electrically connected to the third source S3, the fourth source S4 is grounded, and the fourth MOS tube Q4 and the third MOS tube Q3 are the same type of MOS tube. Exemplarily, when the third MOS tube Q3 is N-channel depletion type, the fourth MOS tube Q4 is also N-channel depletion type.

[0047] In one specific implementation scenario, please refer to Figure 5 , Figure 5 is a structural schematic diagram of another embodiment of the battery switching device of the present application. As shown in Figure 5 , the above first comparator U1, second comparator U2, third MOS tube Q3 and fourth MOS tube Q4 are integrated in the control chip C. As one possible example, the control chip C can be provided with a first ADC (not shown), and the battery switching circuit 123 includes a first resistor R1 electrically connected between the first MOS tube Q1 and the third connector 122, and the first ADC (not shown) is connected across the first resistor R1, so that the voltage across the first resistor R1 can be collected by the first ADC in real time and converted into a digital signal of real-time voltage, and accordingly, the control chip C can obtain the charging and discharging current of the first battery 111 according to the resistance value of the first resistor R1. Similarly, as another possible example, the control chip C can be provided with a second ADC (not shown), and the battery switching circuit 123 can include a second resistor R2 electrically connected between the third MOS tube Q3 and the second battery 124, and the second ADC (not shown) is connected across the second resistor R2, so that the voltage across the second resistor R2 can be collected by the second ADC (not shown) in real time and converted into a digital signal of real-time voltage, and accordingly, the control chip C can obtain the charging and discharging current of the second battery 124 according to the resistance value of the second resistor R2. In addition, please continue to refer to Figure 5The inductance L can be electrically connected between the second resistor R2 and the third MOS tube Q3. It should be noted that the above example is only one possible example of the charging and discharging current, and other cases will not be exemplified here. For example, the charging current of the first battery 111 can be designed to be about 3 amperes, and it can be fully charged in about 2 hours. The charging current of the second battery 124 can be designed to be 1 ampere, and it can be fully charged in about 1 hour.

[0048] The above scheme, the battery switching device 10 includes a primary battery compartment 11, a secondary battery compartment 12 and a total battery compartment 13, the primary battery compartment 11 is provided with a first battery 111 and a first connector 112 electrically connected with the first battery 111, the secondary battery compartment 12 is provided with a second connector 121 and a third connector 122 oppositely arranged, a battery switching circuit 123 electrically connected between the second connector 121 and the third connector 122, and a second battery 124 electrically connected to the battery switching circuit 123, the first connector 112 and the second connector 121 are oppositely arranged and detachably electrically connected, and the battery switching circuit 123 is used to switch the first battery 111 or the second battery 124 to be conducted to the third connector 122, the total battery compartment 13 is provided with a containing space 131 and a fourth connector 132 arranged in the containing space 131, the primary battery compartment 11 and the secondary battery compartment 12 are serially arranged in the containing space 131, the secondary battery compartment 12 is closer to the fourth connector 132 relative to the primary battery compartment 11, the fourth connector 132 and the third connector 122 are oppositely arranged and detachably electrically connected, and the fourth connector 132 is used to supply power externally, since the first battery 111 and the second battery 124 are arranged in separate compartments, the second battery 124 is closer to the fourth connector 132 for external power supply relative to the first battery 111, and by arranging the primary battery compartment 11 and the secondary battery compartment 12 in two separate battery compartments in series in the total battery compartment 13, the first battery 111 and the second battery 124 can be switched to supply power under the premise, compared with the battery built-in electronic equipment, the primary battery compartment 11 and the secondary battery compartment 12 can be conveniently reused.

[0049] Please refer to Figure 6 , Figure 6 is a structural schematic diagram of an embodiment of the endoscope in the present application. As shown in Figure 6 , the endoscope 60 can at least include a host 61, a probe 62 connected to the host, and a battery switching device 10 as in the above disclosed embodiments, and the battery switching device 10 is electrically connected to the host 61. As one possible example, the host 61 can include a main control board 611, and include but not limited to a fan 612, an electret 613, a display screen 614 (such as a touch screen), a speaker 615, an electric joystick 616, a key board 617 electrically connected to the main control board 611, etc., which are not limited here. In addition, please refer to Figure 7 , Figure 7is a structural schematic diagram of another embodiment of the endoscope in the present application. As shown in Figure 7 The housing of the host 61 can be provided with a hollow cavity at the handle part thereof to accommodate the battery switching device 10.

[0050] The above scheme, the endoscope 60 at least includes the host 61, the probe 62 connected to the host 61, and the battery switching device 10 in the above embodiment, and the battery switching device 10 is electrically connected to the host 61, so that the convenient reuse of the battery of the endoscope 60 can be realized, which helps to ensure the continuous, stable and uninterrupted work of the endoscope 60.

[0051] The above description of various embodiments tends to emphasize the differences between various embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, will not be repeated here.

[0052] In several embodiments provided in the present application, it should be understood that the disclosed method and device can be implemented by other ways. For example, the above-described device implementation is only schematic, for example, the division of the module or unit is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection of the device or unit, which can be electrical, mechanical or other forms.

[0053] The unit described as a separate component can be or can not be physically separated, and the component displayed as a unit can be or can not be a physical unit, that is, it can be located in one place, or it can be distributed to a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the present embodiment scheme.

[0054] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The above integrated unit can be realized in the form of hardware or in the form of software functional unit.

Claims

1. A battery switching device, characterized by comprising: The application relates to a battery switching circuit. The battery switching circuit comprises: a first battery compartment provided with a first battery and a first connector electrically connected with the first battery; a second battery compartment provided with a second connector and a third connector oppositely arranged, a battery switching circuit electrically connected between the second connector and the third connector, and a second battery electrically connected with the battery switching circuit, wherein the first connector and the second connector are oppositely arranged and detachably connected, and the battery switching circuit is used for switching the first battery or the second battery to be conducted to the third connector; 2. The battery switching device of claim 1, wherein a total battery compartment provided with a containing space and a fourth connector arranged in the containing space, wherein the first battery compartment and the second battery compartment are arranged in series in the containing space, the second battery compartment is arranged close to the fourth connector relative to the first battery compartment, the fourth connector and the third connector are oppositely arranged and detachably connected, and the fourth connector is used for external power supply. The battery switching circuit comprises: a first comparator comprising a first positive phase end, a first negative phase end and a first output end, wherein the first positive phase end is electrically connected with the second connector, and the first negative phase end is electrically connected with a first reference voltage; a first MOS tube comprising a first gate, a first drain and a first source, wherein the first gate is electrically connected with the first output end, the first drain is electrically connected with the second connector, and the first source is coupled with the third connector; 3. The battery switching device of claim 2, wherein a second MOS tube comprising a second gate, a second drain and a second source, wherein the second gate is electrically connected with the first output end, the second drain is electrically connected with the third connector, and the second source is electrically connected with the second battery. The battery switching circuit further comprises: a second comparator comprising a second positive phase end, a second negative phase end and a second output end, wherein the second positive phase end is electrically connected with the second connector, the second negative phase end is electrically connected with a second reference voltage, and the second reference voltage is not lower than the first reference voltage; a third MOS tube comprising a third gate, a third drain and a third source, wherein the third gate is electrically connected with the second output end, the third drain is electrically connected between the first source and the third connector, and the third source is coupled with the second battery; 4. The battery switching device of claim 3, wherein wherein the third MOS tube and the first MOS tube are the same type of MOS tube. The battery switching circuit further comprises:

5. The battery switching device of claim 4, wherein, a fourth MOS tube comprising a fourth gate, a fourth drain and a fourth source, wherein the fourth gate is electrically connected with the second output end, the fourth drain is electrically connected with the third source, and the fourth source is grounded, and the fourth MOS tube and the third MOS tube are the same type of MOS tube.

6. The battery switching device of claim 5, wherein, The first comparator, the second comparator, the third MOS tube and the fourth MOS tube are integrated in a control chip. The control chip is provided with a first ADC, the battery switching circuit comprises a first resistor, the first resistor is electrically connected between the first MOS tube and the third connector, and the first ADC is connected across the first resistor.

7. The battery switching device of claim 5, wherein, The control chip is provided with a second ADC, the battery switching circuit includes a second resistor, the second resistor is electrically connected between the third MOS tube and the second battery, and the second ADC is connected across the second resistor.

8. The battery switching device of claim 2, wherein, The first MOS tube is an N-channel depletion type, and the second MOS tube is a P-channel enhancement type.

9. The battery switching device of claim 1, wherein, The first-level battery compartment is further provided with: a charging interface for plugging a charger; a power management module electrically connected between the charging interface and the first battery.

10. The battery switching device of claim 1, wherein, The first connector and the second connector are a first type connector group matched with each other, and the third connector and the fourth connector are a second type connector group matched with each other. The first type connector group and the second type connector group are of the same type or different types, and in the case that the first type connector group and the second type connector group are of the same type, the first type connector group and the second type connector group are both a blade connector group.

11. The battery switching device of claim 1, wherein, The battery capacity of the first battery is higher than that of the second battery.

12. An endoscope characterized by comprising: At least comprising a host, a probe connected to the host, and the battery switching device as claimed in any one of claims 1 to 11, and the battery switching device is electrically connected to the host.

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