Battery detachable equipment and virtual reality equipment

Abstract

The utility model provides a battery detachable device and a virtual reality device, the battery detachable device determines the connection relationship between a connection module and a connection indication module through arranging a connection detection module in a power supply device and an electric device, so that the power supply device can determine whether to establish connection with the electric device, and simultaneously, the connection detection module can detect the connection between the connection module and the connection indication module. The short-circuit detection module is arranged to detect the short-circuit condition of the electric equipment, and when connection with the electric equipment is not established or the short-circuit condition occurs, the output voltage can be stopped, and the short-circuit condition is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to product power supply field especially, relates to a battery detachable equipment and virtual reality equipment. BACKGROUND

[0002] The battery of part of present VR (Virtual Reality, virtual reality) product is detachable, to realize independent charging and replacement of battery, but because the electrode of detachable battery is exposed in the environment, when the detachable battery is not put into the product, the positive and negative electrode of detachable battery is easy to cause battery short circuit when contacting water, human body and other conductors. SUMMARY

[0003] The utility model discloses a battery detachable equipment and virtual reality equipment, and aims at solving the problem that detachable battery is easy to short circuit when not being put into the product in prior art.

[0004] To realize above-mentioned purpose, the utility model provides a battery detachable equipment, the battery detachable equipment includes power supply equipment and electric equipment, the power supply equipment includes connecting module, connecting detection module, short circuit detection module, output decision module and voltage output module, the detection end of connecting detection module is connected with connecting module, the output end of connecting detection module is connected with the first input end of output decision module, the detection end of short circuit detection module is connected with connecting module, the output end of short circuit detection module is connected with the second input end of output decision module, the output end of output decision module is connected with the control end of voltage output module, the electric equipment includes connecting indication module and electric module, when the power supply equipment is connected with electric equipment, connecting module is connected with connecting indication module, and the output end of voltage output module is connected with electric module, wherein:

[0005] Connecting detection module is used for detecting the connection state between connecting module and connecting indication module to obtain first signal and output first signal to output decision module.

[0006] Short circuit detection module is used for detecting the short circuit state of connecting module to obtain second signal and output second signal to output decision module.

[0007] Output decision module is used for controlling voltage output module to stop outputting voltage when first signal indicates that connecting module is not connected with connecting indication module or second signal indicates that connecting module is short circuited.

[0008] Optionally, connecting module includes first resistor, and connecting indication module includes second resistor.

[0009] The first end of the first resistor is connected with the detection end of the connection detection module and the detection end of the short circuit detection module respectively, and the second end of the first resistor is connected with the power supply;

[0010] The first end of the second resistor is grounded, and the second end of the second resistor is connected with the first end of the first resistor when the power supply device is connected with the power consumption device.

[0011] Optionally, the connection detection module comprises a first operational amplifier, a third resistor and a fourth resistor, wherein:

[0012] The non-inverting input end of the first operational amplifier is connected with the connection module, the inverting input end of the first operational amplifier is connected with the power supply through the third resistor, the inverting input end of the first operational amplifier is also grounded through the fourth resistor, and the output end of the first operational amplifier is connected with the first input end of the output decision module.

[0013] Optionally, the connection detection module comprises a second operational amplifier, a fifth resistor and a sixth resistor, wherein:

[0014] The non-inverting input end of the second operational amplifier is connected with the connection module, the inverting input end of the second operational amplifier is connected with the power supply through the fifth resistor, the inverting input end of the second operational amplifier is also grounded through the sixth resistor, and the output end of the second operational amplifier is connected with the second input end of the output decision module.

[0015] Optionally, the voltage division ratio of the first resistor and the second resistor is a first ratio, the voltage division ratio of the third resistor and the fourth resistor is a second ratio, and the voltage division ratio of the fifth resistor and the sixth resistor is a third ratio, wherein:

[0016] The first ratio is smaller than the third ratio, and the first ratio is larger than the second ratio.

[0017] Optionally, the resistance values of the first resistor, the third resistor and the fifth resistor are the same, the resistance value of the second resistor is smaller than the resistance value of the fourth resistor, and the resistance value of the second resistor is larger than the resistance value of the sixth resistor.

[0018] Optionally, the output decision module comprises an AND gate, a first inverter and a second inverter, wherein:

[0019] The first input end of the AND gate is connected with the output end of the first operational amplifier through the first inverter, the second input end of the AND gate is connected with the output end of the second operational amplifier through the second inverter, and the output end of the AND gate is connected with the control end of the voltage output module.

[0020] Optionally, the voltage output module comprises a battery unit and a switch unit; wherein:

[0021] The positive pole of the battery unit is connected with the input end of the switch unit, the output end of the switch unit is connected with the connection of the voltage output module and the power consumption module as the output end of the voltage output module, and the control end of the switch unit is connected with the connection of the voltage output module and the power consumption module as the control end of the voltage output module.

[0022] Optionally, the battery unit comprises a power supply battery and a voltage stabilizer; wherein:

[0023] The positive pole of the power supply battery is connected with the input end of the switch unit, the positive pole of the power supply battery is also connected with the input end of the voltage stabilizer, and the output end of the voltage stabilizer is connected with the power supply source.

[0024] In addition, in order to achieve the above-mentioned purpose, the utility model also provides a virtual reality equipment, the virtual reality equipment includes detachable battery and equipment body, the detachable battery includes the power supply equipment as mentioned above, and the equipment body includes the power consumption equipment as mentioned above.

[0025] The utility model provides a kind of battery detachable equipment and virtual reality equipment, the battery detachable equipment includes power supply equipment and electric equipment, the power supply equipment includes connection module, connection detection module, short circuit detection module, output decision module and voltage output module;The detection end of the connection detection module is connected with the connection module, the output end of the connection detection module is connected with the first input end of the output decision module, the detection end of the short circuit detection module is connected with the connection module, the output end of the short circuit detection module is connected with the second input end of the output decision module, the output end of the output decision module is connected with the control end of the voltage output module;The electric equipment includes connection indication module and electric module;When the power supply equipment is connected with the electric equipment, the connection module is connected with the connection indication module, and the output end of the voltage output module is connected with the electric module;Wherein: the connection detection module is used to detect the connection state between the connection module and the connection indication module to obtain first signal, and output the first signal to the output decision module;The short circuit detection module is used to detect the short circuit state of the connection module to obtain second signal, and output the second signal to the output decision module;The output decision module is used to control the voltage output module to stop outputting voltage when the first signal indicates that the connection module is not connected with the connection indication module or the second signal indicates that the connection module is short-circuited. The connection relationship between the connection module and the connection indication module is determined by setting the connection detection module in the power supply equipment and the electric equipment, so that the power supply equipment can determine whether to establish connection with the electric equipment. At the same time, the short circuit detection module detects the short circuit condition of the electric equipment, and can stop outputting voltage when not connected with the electric equipment or short circuit occurs, to avoid short circuit. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings from the structures shown in these drawings without creating labor.

[0027] Figure 1 The functional module diagram of the battery detachable equipment embodiment of the utility model;

[0028] Figure 2 The circuit structure diagram of the battery detachable equipment application in the embodiment of the utility model; Figure 1

[0029] Figure 3 ​The utility model discloses a battery detachable equipment reverse phase ware's structure diagram.

[0030] The utility model discloses the realization, functional characteristics and advantages will combine embodiment, refer to the further illustration of drawing.

[0031] Explanation of the attached drawings:

[0032] Reference numerals Names Reference numerals Names 100 Power supply device R1-R10 First to tenth resistors 110 Connection module U1-U2 First to second operational amplifiers 120 Connection detection module N1-N2 First to second inverters 130 Short circuit detection module A1 AND gate 140 Output decision module LS Switching unit 450 Voltage output module BAT Power supply battery 200 Power consumption device LDO Voltage stabilizer 210 Connection indication module C1-C2 First to second capacitors 220 Power consumption module D1-D2 First to second diodes Q1 First NMOS transistor Specific implementation

[0033] It should be understood that the specific embodiments described herein are merely intended to explain the present utility model and are not intended to limit the present utility model.

[0034] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model and are not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings) and change accordingly when the specific posture changes.

[0036] In addition, the description of "first", "second" and the like in the present utility model is only for the purpose of description and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] The utility model provides a kind of battery detachable equipment, it is applied to virtual reality equipment, please see Figure 1 , Figure 1The utility model discloses a battery detachable device one embodiment's function module diagram. In this embodiment, the battery detachable device includes power supply equipment 100 and electric equipment 200, the power supply equipment 100 includes connecting module 110, connecting detection module 120, short circuit detection module 130, output decision module 140 and voltage output module 450;The detection end of connecting detection module 120 is connected with connecting module 110, and the output end of connecting detection module 120 is connected with the first input end of output decision module 140, and the detection end of short circuit detection module 130 is connected with connecting module 110, and the output end of short circuit detection module 130 is connected with the second input end of output decision module 140, and the output end of output decision module 140 is connected with the control end of voltage output module 450;Electric equipment 200 includes connecting indication module 210 and electric module 220;When the power supply equipment 100 is connected with electric equipment 200, connecting module 110 is connected with connecting indication module 210, and the output end of voltage output module 450 is connected with electric module 220;Wherein:

[0038] Connecting detection module 120 is used for detecting the connection state between connecting module 110 and connecting indication module 210 to obtain a first signal and outputting the first signal to output decision module 140;

[0039] Short circuit detection module 130 is used for detecting the short circuit state of connecting module 110 to obtain a second signal and outputting the second signal to output decision module 140;

[0040] Output decision module 140 is used for controlling voltage output module 450 to stop outputting voltage when the first signal indicates that connecting module 110 is not connected with connecting indication module 210 or the second signal indicates that connecting module 110 is short-circuited.

[0041] Power supply equipment 100 supplies power for electric equipment 200, and the power supply equipment 100 and the electric equipment 200 are detachably arranged.

[0042] Connecting module 110 in power supply equipment 100 and connecting indication module 210 in electric equipment 200 are used for indicating the connection relationship between the power supply equipment 100 and the electric equipment 200, and it can be understood that when the power supply equipment 100 is connected with the electric equipment 200, connecting module 110 is connected with connecting indication module 210, and when the power supply equipment 100 is not connected with the electric equipment 200, connecting module 110 is not connected with connecting indication module 210.

[0043] The connection detection module 120 is configured to detect the connection relationship between the connection module 110 and the connection indication module 210, and further realize the detection of the connection relationship between the power supply device 100 and the power consumption device 200. It can be understood that the connection module 110 and the connection indication module 210 have certain signal interaction, so that the electrical state of the connection module 110 is different when the connection module 110 and the connection indication module 210 are connected or not connected, so that the connection detection module 120 can realize the detection of the connection relationship based on the electrical state of the connection module 110. The first signal indicates whether the connection module 110 and the connection indication module 210 are connected.

[0044] The short circuit detection module 130 detects the short circuit state of the connection module 110. When the power supply device 100 is specifically structured, the provided electrodes can be centrally arranged, such as the electrodes of the connection module 110, the electrodes of the voltage output module 450, and the electrodes of the ground, which are arranged in sequence on the same face of the shell, and the distance between the two electrodes is less than a certain distance, so that when the electrode arrangement position of the shell of the power supply device 100 is touched by the human body or has water, the electrodes of the connection module 110 and the electrodes of the voltage output module 450 will be short-circuited with the electrodes of the ground, so that the short circuit detection of the connection module 110 can realize the determination of the short circuit condition of the power supply device 100. The second signal indicates whether the electrodes of the power supply device 100 are short-circuited.

[0045] The output decision module 140 is configured to determine the connection condition of the power supply device 100 and the power consumption device 200 and the short circuit condition of the electrodes of the power supply device 100 according to the first signal and the second signal. It can be understood that when the power supply device 100 and the power consumption device 200 are connected, the power supply device 100 needs to supply power to the power consumption device 200, so the voltage output module 450 needs to be controlled to output voltage to the power consumption module 220. When the power supply device 100 and the power consumption device 200 are not connected, the power supply to the power consumption device 200 can be stopped. At the same time, when the electrodes of the power supply device 100 are short-circuited, in order to avoid damage to the device, the voltage output needs to be stopped to ensure the safety of the device. Therefore, when the power supply device 100 and the power consumption device 200 are not connected, or the power supply device 100 is short-circuited, the voltage output module 450 needs to be controlled to stop outputting voltage.

[0046] The specific structure of the power consumption module 220 can be set based on actual needs. For example, when the power consumption device 200 is a VR device, the power consumption module 220 can include a charger, a charging interface, and a VR system. When the power consumption device 200 is connected to the power supply device 100, the first power supply end of the charger is connected to the voltage output module 450, the second power supply end of the charger is connected to the charging interface, and the output end of the charger is connected to the power supply end of the VR system. The type of the charging interface can be set based on actual needs, such as lightning, USB-A, and USB-C.

[0047] When the power supply device 100 is connected to the power consumption device 200, the connection detection module 120 outputs a first signal indicating connection to the output decision module 140, the short circuit detection module 130 outputs a second signal indicating no short circuit to the output decision module 140, and the output decision module 140 controls the voltage output module 450 to output voltage.

[0048] When the power supply device 100 is connected to the power consumption device 200 and there is no short circuit, the connection detection module 120 outputs a first signal indicating no connection to the output decision module 140, the short circuit detection module 130 outputs a second signal indicating no short circuit to the output decision module 140, and the output decision module 140 controls the voltage output module 450 to stop outputting voltage.

[0049] When the power supply device 100 is connected to the power consumption device 200 and there is a short circuit, the connection detection module 120 outputs a first signal indicating no connection to the output decision module 140, the short circuit detection module 130 outputs a second signal indicating a short circuit to the output decision module 140, and the output decision module 140 controls the voltage output module 450 to stop outputting voltage.

[0050] In this embodiment, the connection detection module 120 is provided in the power supply device 100 and the power consumption device 200 to determine the connection relationship between the connection module 110 and the connection indication module 210, so that the power supply device 100 can determine whether to establish a connection with the power consumption device 200. At the same time, the short circuit detection module 130 is provided to detect the short circuit condition of the power consumption device 200, and can stop outputting voltage when no connection is established with the power consumption device 200 or a short circuit condition occurs, thereby avoiding the occurrence of a short circuit condition.

[0051] Further, the connection module 110 includes a first resistor R1, and the connection indication module 210 includes a second resistor R2; wherein:

[0052] The first end of the first resistor R1 is connected to the detection end of the connection detection module 120 and the detection end of the short circuit detection module 130, respectively, and the second end of the first resistor R1 is connected to the power supply;

[0053] The first end of the second resistor R2 is grounded, and when the power supply device 100 is connected with the power utilization device 200, the second end of the second resistor R2 is connected with the first end of the first resistor R1.

[0054] When the power supply module is connected with the power utilization module 220, the first end of the first resistor R1 is connected with the second end of the second resistor R2; at this time, the voltage output by the power supply is grounded through the first resistor R1 and the second resistor R2 in turn; the connection detection module 120 detects the voltage at the first end of the first resistor R1, and thus the voltage detected by the connection detection module 120 is the voltage obtained by dividing the voltage output by the power supply through the first resistor R1 and the second resistor R2.

[0055] When the power supply module is not connected with the power utilization module 220, the first end of the first resistor R1 is not connected with the second end of the second resistor R2; at this time, the voltage output by the power supply flows into the connection detection module 120 through the first resistor R1, and the voltage detected by the connection detection module 120 is not divided.

[0056] In this embodiment, by setting the first resistor R1 and the second resistor R2, and by making the connection state of the first resistor R1 and the second resistor R2 correspond to different connection states of the power supply device 100 and the power utilization device 200, the connection detection module 120 can detect different voltage signals when the connection state of the power supply module and the power utilization module 220 is different, and thus the connection detection module 120 can determine the connection state of the power supply module and the power utilization module 220 according to the detected voltage signals.

[0057] Further, the connection detection module 120 comprises a first operational amplifier U1, a third resistor R3 and a fourth resistor R4, wherein:

[0058] The non-inverting input end of the first operational amplifier U1 is connected with the connection module 110, the inverting input end of the first operational amplifier U1 is connected with the power supply through the third resistor R3, the inverting input end of the first operational amplifier U1 is also grounded through the fourth resistor R4, and the output end of the first operational amplifier U1 is connected with the first input end of the output decision module 140.

[0059] The third resistor R3 and the fourth resistor R4 constitute a voltage dividing circuit, which divides the voltage of the power supply and outputs the divided voltage to the inverting input end of the first operational amplifier U1; when the voltage at the non-inverting input end of the first operational amplifier U1 is greater than the voltage at the inverting input end, the first operational amplifier U1 outputs a high level; when the voltage at the non-inverting input end of the first operational amplifier U1 is less than the voltage at the inverting input end, the first operational amplifier U1 outputs a low level.

[0060] Based on the voltage relationship between the non-inverting input and the inverting input, the first operational amplifier U1 can output different levels; therefore, in order to realize the detection of the connection state, it is necessary to set that when the power supply device 100 is connected with the power utilization device 200, the voltage of the non-inverting input of the first operational amplifier U1 is less than the voltage of the inverting input; when the power supply device 100 is not connected with the power utilization device 200, the voltage of the non-inverting input of the first operational amplifier U1 is greater than the voltage of the inverting input.

[0061] In other embodiments, the connection between the non-inverting input and the inverting input of the first operational amplifier U1 described above can also be exchanged; that is, the non-inverting input of the first operational amplifier U1 is connected with the voltage dividing circuit composed of the third resistor R3 and the fourth resistor R4, and the inverting input of the first operational amplifier U1 is connected with the connection module 110. It can be understood that when the connection detection module 120 is specifically set, as long as the first amplifier can output different level signals when the power supply device 100 is connected with the power utilization device 200 and when the power supply device 100 is not connected with the power utilization device 200.

[0062] Further, the connection detection module 120 comprises a second operational amplifier U2, a fifth resistor R5 and a sixth resistor R6, wherein:

[0063] The non-inverting input of the second operational amplifier U2 is connected with the connection module 110, the inverting input of the second operational amplifier U2 is connected with the power supply through the fifth resistor R5, and the inverting input of the second operational amplifier U2 is also grounded through the sixth resistor R6, and the output end of the second operational amplifier U2 is connected with the second input end of the output decision module 140.

[0064] The fifth resistor R5 and the sixth resistor R6 constitute a voltage dividing circuit, and the voltage of the power supply is divided and output to the non-inverting input of the second operational amplifier U2; when the voltage of the non-inverting input of the second operational amplifier U2 is greater than the voltage of the inverting input, the second operational amplifier U2 outputs a high level; when the voltage of the non-inverting input of the second operational amplifier U2 is less than the voltage of the inverting input, the second operational amplifier U2 outputs a low level.

[0065] Based on the voltage relationship between the non-inverting input and the inverting input, the second operational amplifier U2 can output different levels; therefore, in order to realize the detection of the short circuit, it is necessary to set that when the connection module 110 occurs a short circuit, the voltage of the non-inverting input of the second operational amplifier U2 is greater than the voltage of the inverting input; when the connection module 110 does not occur a short circuit, the voltage of the non-inverting input of the second operational amplifier U2 is less than the voltage of the inverting input.

[0066] In other embodiments, the connection between the non-inverting input and the inverting input of the second operational amplifier U2 can also be exchanged; that is, the inverting input of the second operational amplifier U2 is connected with the voltage dividing circuit composed of the fifth resistor R5 and the sixth resistor R6, and the non-inverting input of the second operational amplifier U2 is connected with the connection module 110. It can be understood that when the connection detection module 120 is specifically set, as long as the second amplifier can output different level signals when the connection module 110 is short-circuited or not short-circuited.

[0067] Further, the voltage dividing ratio of the first resistor R1 and the second resistor R2 is a first ratio, the voltage dividing ratio of the third resistor R3 and the fourth resistor R4 is a second ratio, and the voltage dividing ratio of the fifth resistor R5 and the sixth resistor R6 is a third ratio, wherein:

[0068] The first ratio is smaller than the third ratio, and the first ratio is greater than the second ratio.

[0069] The voltage dividing circuit of the first resistor R1 and the second resistor R2 constitutes a setting for the detection signal; the voltage dividing circuit of the third resistor R3 and the fourth resistor R4 constitutes a setting for the reference voltage of the connection detection module 120; and the voltage dividing circuit of the fourth resistor R4 and the fifth resistor R5 constitutes a setting for the reference voltage of the short-circuit detection module 130.

[0070] It can be understood that the three voltage dividing circuits are all for dividing the voltage output by the power supply; and the greater the voltage dividing ratio, the smaller the corresponding output voltage; and the detection of connection and short-circuit is determined by comparison through the operational amplifier, therefore, the voltage of different voltage sources needs to be set so that the corresponding operational amplifier can output the level signal corresponding to the connection and short-circuit conditions.

[0071] The voltage dividing ratio refers to the ratio of the resistance value of the resistor connected with the power supply to the resistance value of the resistor connected with the ground in the voltage dividing circuit; for example, the first ratio is the ratio of the first resistor R1 to the second resistor R2, the second ratio is the ratio of the third resistor R3 to the fourth resistor R4, and the third ratio is the ratio of the fifth resistor R5 to the sixth resistor R6.

[0072] For the detection of the connection state of the power supply device 100 and the powered device 200, when the power supply device 100 is connected with the powered device 200, the first resistor R1 and the second resistor R2 are connected to form a voltage divider, so that the voltage at the non-inverting input terminal of the first operational amplifier U1 is relatively low, and when the power supply device 100 is not connected with the powered device 200, the voltage without voltage division makes the voltage at the non-inverting input terminal of the first operational amplifier U1 relatively high; it can be seen that in different connection states, the voltage at the non-inverting input terminal of the first operational amplifier U1 has two states of being divided by the first resistor R1 and the second resistor R2 and not being divided, in order to realize different level outputs of the first operational amplifier U1 in the two states, the voltage at the inverting input terminal of the first operational amplifier U1 needs to be greater than and less than the voltage at the non-inverting input terminal in the two states respectively, and the voltage at the inverting input terminal of the first operational amplifier U1 is based on the voltage division of the third resistor R3 and the fourth resistor R4; therefore, the first ratio should be greater than the second ratio, so that when the power supply device 100 is connected with the powered device 200, the voltage at the non-inverting input terminal of the first operational amplifier U1 is less than the voltage at the inverting input terminal, and when the power supply device 100 is not connected with the powered device 200, the voltage at the non-inverting input terminal of the first operational amplifier U1 is greater than the voltage at the inverting input terminal, realizing the detection of the connection state of the power supply device 100 and the powered device 200.

[0073] For short circuit detection, when a short circuit occurs, the electrode of the connection module 110 is shorted to the ground, so the negative electrode of the second operational amplifier U2 will be directly grounded, and the second operational amplifier U2 will output a high level; and when no short circuit occurs, there are two cases for the voltage at the inverting input terminal of the second operational amplifier U2, one is that when the power supply device 100 is connected with the powered device 200, the voltage at the inverting input terminal of the second operational amplifier U2 is based on the voltage division of the first resistor R1 and the second resistor R2, and the other is that when the power supply device 100 is not connected with the powered device 200, the voltage at the inverting input terminal of the second operational amplifier U2 is directly connected to the power supply voltage through the first voltage, at this time the second operational amplifier U2 outputs a low level; and since the second operational amplifier U2 will output a high level when a short circuit occurs, it is required that the second operational amplifier U2 can output a low level when no short circuit occurs, therefore, it is required that the third ratio is greater than the first ratio, so that when the power supply device 100 is connected with the powered device 200, the voltage at the non-inverting input terminal of the second operational amplifier U2 is less than the voltage at the inverting input terminal, and outputs a low level, realizing the detection of the short circuit.

[0074] Further, the first resistor R1, the third resistor R3 and the fifth resistor R5 have the same resistance value, the resistance value of the second resistor R2 is less than the resistance value of the fourth resistor R4, and the resistance value of the second resistor R2 is greater than the resistance value of the sixth resistor R6.

[0075] In this embodiment, for ease of setting, the resistance values ​​of the first resistor R1, the third resistor R3, and the fifth resistor R5 are set to be the same. The specific values ​​can be set based on actual needs, such as 10 kΩ;

[0076] On this basis, the resistance values ​​of the second resistor R2, the fourth resistor R4, and the sixth resistor R6 are set. Since the resistance values ​​of the first resistor R1, the third resistor R3, and the fifth resistor R5 are the same, the first ratio, the second ratio, and the third ratio depend on the settings of the second resistor R2, the fourth resistor R4, and the sixth resistor R6. Specifically, the resistance value of the second resistor R2 is smaller than the resistance value of the fourth resistor R4. Therefore, the first ratio will be greater than the second ratio. The resistance value of the second resistor R2 is greater than the resistance value of the sixth resistor R6. Therefore, the first ratio will be smaller than the third ratio.

[0077] Furthermore, the output decision module 140 includes an AND gate A1, a first inverter N1, and a second inverter N2; wherein:

[0078] The first input end of the AND gate A1 is connected to the output end of the first operational amplifier U1 through the first inverter N1, the second input end of the AND gate A1 is connected to the output end of the second operational amplifier U2 through the second inverter N2, and the output end of the AND gate A1 is connected to the control end of the voltage output module 450.

[0079] The first operational amplifier U1 and the second operational amplifier U2 will output a first signal and a second signal respectively. The output decision module 140 needs to control the voltage output module 450 to output voltage based on the two signals when the power supply device 100 and the power consumption device 200 are connected and there is no short circuit.

[0080] Taking the above content as an example, the first operational amplifier U1 outputs a low level when the power supply device 100 is connected to the power-consuming device 200, otherwise it outputs a high level; the second operational amplifier U2 outputs a high level when there is a short circuit, otherwise it outputs a low level; and the output decision module 140 needs to control the voltage output module 450 to output voltage when the first operational amplifier U1 outputs a low level and the second operational amplifier U2 outputs a low level; in other cases, the voltage output module 450 is controlled to stop outputting voltage.

[0081] With a high level being 1 and a low level being 0, the output logic of the output decision module 140 is:

[0082] Input 0, 0, output 1;

[0083] Input 1, 0, output 0;

[0084] Input 0, 1, output 0;

[0085] Input 1, 1, output 0;

[0086] From the logic principle of the AND gate A1, the output logic of the AND gate A1 is:

[0087] Input 0, 0, output 0;

[0088] Input 1, 0, output 0;

[0089] Input 0, 1, output 0;

[0090] Input 1, 1, output 1;

[0091] Therefore, the output logic of the AND gate A1 is opposite to the required output logic of the output decision module 140 in the case that the two inputs are the same. Therefore, in the embodiment, inverters are added to the two input ends of the AND gate A1. At this time, the signals output by the two operational amplifiers are inverted through the inverters, and the output logic of the AND gate A1 is:

[0092] Input 0, 0, inverted 1, 1, output 1;

[0093] Input 1, 0, inverted 1, 0, output 0;

[0094] Input 0, 1, inverted 0, 1, output 0;

[0095] Input 1, 1, inverted 0, 0, output 0;

[0096] At this time, the inverters combine the output logic of the AND gate A1 to be the same as the required output logic of the output decision module 140, and can output the voltage when the power supply device 100 is connected with the power consumption device 200 and there is no short circuit.

[0097] It should be noted that the inverter can not only invert the level, but also can realize the current limiting effect of the circuit. For example, in a specific embodiment, taking the first inverter as an example; see Figure 3 The inverter can include a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first NMOS tube Q1, a first diode D1, and a second diode D2; wherein:

[0098] The gate of the first NMOS tube Q1 is connected with the output end of the operational amplifier, the gate of the first NMOS tube Q1 is grounded through the seventh resistor R7, the gate of the first NMOS tube Q1 is further grounded through the forward first diode D1 and the reverse second diode D2 in turn, the source of the first NMOS tube Q1 is grounded, the drain of the first NMOS tube Q1 is connected with the power supply through the eighth resistor R8, and the drain of the first NMOS tube Q1 is connected with the input end of the AND gate A1 through the ninth resistor R9.

[0099] The eighth resistor R8 is a current limiting resistor.

[0100] In addition, a low-pass filter circuit can be arranged at the gate of the first NMOS transistor Q1, and the low-pass filter circuit can include a tenth resistor R10 and a first capacitor C1.

[0101] The gate of the first NMOS transistor Q1 is connected to the output terminal of the operational amplifier through the tenth resistor R10, and the gate of the first NMOS transistor Q1 is also grounded through the first capacitor C1.

[0102] A second capacitor C2 can also be arranged at the input terminal of the AND gate A1 for filtering.

[0103] The above is only an example of the implementable structure of the inverter, and in actual application, the specific structure of the inverter can be arranged based on actual needs.

[0104] In other embodiments, the connection between the non-inverting input terminal and the inverting input terminal of the first operational amplifier U1 and the second operational amplifier U2 can also be exchanged; so that the output levels of the first operational amplifier U1 and the second operational amplifier U2 are opposite to each other, and at the same time, the inverter is cancelled, and the output logic required by the output decision module 140 can also be achieved.

[0105] In other embodiments, other logic gates and matching operational amplifiers can also be arranged; such as an OR gate, and the output logic of the OR gate is:

[0106] Input 0, 0, output 0;

[0107] Input 1, 0, output 1;

[0108] Input 0, 1, output 1;

[0109] Input 1, 1, output 1;

[0110] At this time, the first operational amplifier U1 is arranged to output a low level when the power supply device 100 is connected to the power consumption device 200, and to output a high level otherwise; the second operational amplifier U2 is arranged to output a high level when there is a short circuit, and to output a low level otherwise; and at the same time, the inverter is arranged at the output terminal of the OR gate instead of the input terminal of the OR gate, and at this time, the output logic of the output decision module 140 is:

[0111] Input 0, 0, output 0, and invert 1;

[0112] Input 1, 0, output 1, and invert 0;

[0113] Input 0, 1, output 1, and invert 0;

[0114] Input 1, 1, output 1, and invert 0;

[0115] The output logic required by the output decision module 140 is met;

[0116] For example, the output logic of the NAND gate is:

[0117] Input 0, 0, output 1;

[0118] Input 1, 0, output 0;

[0119] Input 0, 1, output 0;

[0120] Input 1, 1, output 0;

[0121] At this time, the first operational amplifier U1 outputs low level when the power supply device 100 is connected with the power consumption device 200, otherwise outputs high level; the second operational amplifier U2 outputs high level when there is a short circuit, otherwise outputs low level; at this time, the NAND gate can meet the output logic required by the output decision module 140.

[0122] Further, the voltage output module 450 comprises a battery unit and a switch unit LS; wherein:

[0123] The positive electrode of the battery unit is connected with the input end of the switch unit LS, the output end of the switch unit LS is connected with the power consumption module 220 as the output end of the voltage output module 450, and the control end of the switch unit LS is connected with the power consumption module 220 as the control end of the voltage output module 450.

[0124] The negative electrode of the battery unit is grounded.

[0125] When the switch unit LS is turned on to connect the positive electrode of the battery unit with the positive electrode input end of the power consumption module 220, a loop is established between the battery unit and the power consumption module 220 to realize power supply; when the switch unit LS is turned off to disconnect the positive electrode of the battery unit with the positive electrode input end of the power consumption module 220, the loop between the battery unit and the power consumption module 220 is disconnected, so that the power supply cannot be realized, and at the same time, the voltage of the battery unit cannot be output to the outside of the switch unit LS; at this time, the output end of the voltage output module 450 has no voltage output, so the short circuit between the output end of the voltage output module 450 and the negative electrode output end cannot occur.

[0126] The on and off of the switch unit LS are controlled by the output decision module 140, for example, the switch unit LS is turned on when receiving the high level signal sent by the output decision module 140, and is turned off when receiving the low level signal sent by the output decision module 140. The specific type of the switch unit LS can be set based on actual needs, such as load switch, MOS tube.

[0127] Further, the battery unit comprises a power supply battery BAT and a voltage stabilizer LDO; wherein:

[0128] The positive electrode of the power supply battery BAT is connected with the input end of the switch unit LS, and the positive electrode of the power supply battery BAT is also connected with the input end of the voltage stabilizer LDO, and the output end of the voltage stabilizer LDO serves as a power supply.

[0129] The power supply battery BAT supplies power to the power consuming device 200 and the power consuming device in the power supply device 100; the voltage output by the power supply battery BAT is output to the power consuming module 220 through the switch unit LS; and the voltage output by the power supply battery BAT is stabilized by the voltage stabilizer LDO and then serves as power supply for the power consuming device in the power supply device 100. The specific type of the voltage stabilizer LDO can be set based on actual needs, such as an LDO (Low-dropout regulator).

[0130] The overall implementation principle of the present application is described as follows:

[0131] When the power supply device 100 is connected with the power consuming device 200 and the connection module 110 does not have a short circuit, the first operational amplifier U1 outputs a low level, the second operational amplifier U2 outputs a low level, after inversion, the two input ends of the AND gate A1 input high levels, the AND gate A1 outputs a high level, the switch unit LS is turned on, and the output voltage is output;

[0132] When the power supply device 100 is connected with the power consuming device 200 and the connection module 110 has a short circuit, the first operational amplifier U1 outputs a low level, the second operational amplifier U2 outputs a high level, after inversion, one of the input ends of the AND gate A1 inputs a high level and the other inputs a low level, the AND gate A1 outputs a low level, the switch unit LS is turned off, and the output voltage is stopped;

[0133] When the power supply device 100 is not connected with the power consuming device 200 and the connection module 110 does not have a short circuit, the first operational amplifier U1 outputs a high level, the second operational amplifier U2 outputs a low level, after inversion, one of the input ends of the AND gate A1 inputs a low level and the other inputs a high level, the AND gate A1 outputs a low level, the switch unit LS is turned off, and the output voltage is stopped;

[0134] When the power supply device 100 is not connected with the power consuming device 200 and the connection module 110 has a short circuit, the first operational amplifier U1 outputs a high level, the second operational amplifier U2 outputs a high level, after inversion, one of the input ends of the AND gate A1 inputs a low level and the other inputs a low level, the AND gate A1 outputs a low level, the switch unit LS is turned off, and the output voltage is stopped.

[0135] The utility model also protects a kind of virtual reality equipment, the virtual reality equipment includes detachable battery and equipment body, the detachable battery includes the power supply device 100 as described above, and the equipment body includes the electric device 200 as described above;The structure of the power supply device 100, electric device 200 can refer to the above embodiment, and here will not be repeated.The virtual reality equipment of this implementation example has all the beneficial effects of the above battery detachable device, naturally, since the virtual reality equipment of this implementation example adopts the technical scheme of the above battery detachable device.

[0136] It should be noted that, in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or system. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or system that includes the element. The above utility model embodiment serial number is only for description, not representing the pros and cons of the embodiment.

[0137] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A battery-detachable device, characterized in that: The battery-removable device includes a power supply device and a power-consuming device, wherein the power supply device includes a connection module, a connection detection module, a short-circuit detection module, an output decision module, and a voltage output module; the detection end of the connection detection module is connected to the connection module, the output end of the connection detection module is connected to the first input end of the output decision module, the detection end of the short-circuit detection module is connected to the connection module, the output end of the short-circuit detection module is connected to the second input end of the output decision module, and the output end of the output decision module is connected to the control end of the voltage output module; the power-consuming device includes a connection indication module and a power-consuming module; when the power supply device is connected to the power-consuming device, the connection module is connected to the connection indication module, and the output end of the voltage output module is connected to the power-consuming module; wherein: The connection detection module is configured to detect the connection status between the connection module and the connection indication module to obtain a first signal, and output the first signal to the output decision module; The short-circuit detection module is configured to detect the short-circuit state of the connection module to obtain a second signal, and output the second signal to the output decision module; The output decision module is configured to control the voltage output module to stop outputting voltage when the first signal indicates that the connection module is not connected to the connection indication module, or when the second signal indicates that the connection module is short-circuited.

2. The battery-detachable device according to claim 1, wherein: The connection module includes a first resistor, and the connection indication module includes a second resistor; wherein: The first end of the first resistor is connected to the detection end of the connection detection module and the detection end of the short circuit detection module respectively, and the second end of the first resistor is connected to the power supply; The first end of the second resistor is grounded. When the power supply device is connected to the power-consuming device, the second end of the second resistor is connected to the first end of the first resistor.

3. The battery-detachable device according to claim 1, wherein: The connection detection module includes a first operational amplifier, a third resistor, and a fourth resistor, wherein: The non-inverting input terminal of the first operational amplifier is connected to the connection module, the inverting input terminal of the first operational amplifier is connected to the power supply through the third resistor, the inverting input terminal of the first operational amplifier is also grounded through the fourth resistor, and the output terminal of the first operational amplifier is connected to the first input terminal of the output decision module.

4. The battery-detachable device according to claim 1, wherein: The connection detection module includes a second operational amplifier, a fifth resistor, and a sixth resistor, wherein: The non-inverting input terminal of the second operational amplifier is connected to the connection module, the inverting input terminal of the second operational amplifier is connected to the power supply through the fifth resistor, the inverting input terminal of the second operational amplifier is also grounded through the sixth resistor, and the output terminal of the second operational amplifier is connected to the second input terminal of the output decision module.

5. The battery-detachable device according to any one of claims 1 to 4, wherein: The voltage division ratio of the first resistor and the second resistor is a first ratio, the voltage division ratio of the third resistor and the fourth resistor is a second ratio, and the voltage division ratio of the fifth resistor and the sixth resistor is a third ratio, wherein: The first ratio is smaller than the third ratio, and the first ratio is larger than the second ratio.

6. The battery-detachable device according to claim 5, wherein: The resistance values ​​of the first resistor, the third resistor, and the fifth resistor are the same, the resistance value of the second resistor is smaller than the resistance value of the fourth resistor, and the resistance value of the second resistor is greater than the resistance value of the sixth resistor.

7. The battery-detachable device according to any one of claims 1 to 4, wherein: The output decision module includes an AND gate, a first inverter, and a second inverter; wherein: The first input end of the AND gate is connected to the output end of the first operational amplifier through the first inverter, the second input end of the AND gate is connected to the output end of the second operational amplifier through the second inverter, and the output end of the AND gate is connected to the control end of the voltage output module.

8. The battery-detachable device according to any one of claims 1 to 4, wherein: The voltage output module includes a battery unit and a switch unit; wherein: The positive electrode of the battery unit is connected to the input end of the switch unit, the output end of the switch unit is used as the output end of the voltage output module to connect with the power module, and the control end of the switch unit is used as the control end of the voltage output module.

9. The battery-detachable device according to claim 8, wherein: The battery unit includes a power supply battery and a voltage regulator; wherein: The positive electrode of the power supply battery is connected to the input end of the switch unit, and the positive electrode of the power supply battery is also connected to the input end of the voltage regulator, and the output end of the voltage regulator serves as a power supply.

10. A virtual reality device, characterized in that: The virtual reality device includes a detachable battery and a device body; the detachable battery includes a power supply device as described in any one of claims 1 to 9, and the device body includes an electrical device as described in any one of claims 1 to 9.

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