Detachable mobile display device

By introducing a connection detection structure and adaptive power supply control into a detachable mobile display device, the problem of the display's battery life depending on the base's power supply is solved, achieving efficient battery life and portable use in different scenarios.

CN223513624UActive Publication Date: 2025-11-04SHENZHEN BASEUS TECH CO LTD
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Patent Information

Application Number
CN202422735934.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-11-04
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

The current portable displays rely mainly on the base for power, which limits their usage scenarios and affects their portability.

Method used

Design a detachable mobile display device, comprising a display unit, first and second electronic components, a connection detection structure, and a control switch. The connection detection structure detects the connection status between the display unit and the bracket, adaptively selects either the display battery or the base battery for power supply, and controls the playback mode of the speaker.

Benefits of technology

It expands the usage scenarios of display devices, improves battery life and portability, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses detachable mobile display equipment which comprises a display unit, a first electronic component, a base, a second electronic component, a connection detection structure and a control switch. The first electronic component is arranged on the display unit and is connected with the display component in the display unit through the first switch; a support is arranged on the base and connected with the display unit. The second electronic component is arranged on the base and is connected with the display component through the second switch; the connection detection structure is connected between the base and the display unit; the control switch is connected with the connection detection structure, controls the first switch to be switched on when the connection detection structure detects that the display unit is connected with the support, or controls the second switch to be switched on. The connection state between the display unit and the base is determined through the connection detection structure, different switches are controlled according to the connection state, different electronic assemblies are selected to work, the use performance of different use scenes is met in a self-adaptive mode, and the use scenes of the detachable mobile display equipment are expanded.
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Description

Technical Field

[0001] This utility model relates to, but is not limited to, the field of mobile display device technology, and in particular to a detachable mobile display device. Background Technology

[0002] The characteristic of a portable display screen is that it is easy to move, allowing users to easily relocate it to the desired scenario. However, in related technologies, portable displays are often used as standalone display devices, with their power supply primarily dependent on the supporting base, thus limiting their usability. Utility Model Content

[0003] This utility model provides a detachable mobile display device that can support battery life under different usage scenarios and expand the usage scenarios.

[0004] In a first aspect, this utility model provides a detachable mobile display device, comprising: a display unit, a first electronic component, a base, a second electronic component, a connection detection structure, and a control switch;

[0005] The first electronic component is disposed on the display unit and is connected to the display component in the display unit via a first switch;

[0006] The base is provided with a bracket, which is used to connect to the display unit;

[0007] The second electronic component is mounted on the base and connected to the display component via a second switch;

[0008] The connection detection structure is connected between the base and the display unit, and the connection detection structure is used to detect whether the display unit and the bracket are connected.

[0009] The control switch is connected to the connection detection structure, and controls the first switch to turn on when the connection detection structure detects that the display unit and the bracket are connected.

[0010] According to some embodiments of the present invention, the connection detection structure is used to generate a first-level position detection signal when the display unit is connected to the bracket, and otherwise generate a second-level position detection signal, and the control switch is used to receive the position detection signal;

[0011] When the control switch receives the first-level arrival detection signal, it controls the first switch to open and the second switch to open; when the control switch receives the second-level arrival detection signal, it controls the first switch to open and the second switch to open.

[0012] According to some embodiments of the present invention, a control module is also included, which is disposed on the display unit;

[0013] The first electronic component is a display battery, and the second electronic component is a base battery;

[0014] The first input pin of the control module is connected to the base battery and is used to receive the base battery capacity. The second input pin of the control module is connected to the connection detection structure and is used to receive the position detection signal. The third input pin of the control module is connected to the display battery and is used to receive the display battery voltage. The first output pin of the control module is connected to the control switch.

[0015] When the base battery capacity is less than the preset capacity and the display battery voltage is higher than the power-off voltage, and the position detection signal input by the second input pin is at the first level, the control module is used to set the first output pin to the second level and convert the position detection signal from the first level to the second level.

[0016] Otherwise, the position detection signal received by the second input pin is transmitted to the first output pin.

[0017] According to some embodiments of the present invention, the connection detection structure includes a connector located on the display unit and a detection pin located on the bracket. After the connector contacts the detection pin, it generates the positioning detection signal of the first level.

[0018] According to some embodiments of the present invention, the control switch is an N-channel field-effect transistor, the gate of the control switch is connected to the connection detection structure, the source of the control switch is connected to the second switch, and the drain of the control switch is connected to the first switch.

[0019] According to some embodiments of the present invention, the first switch is an N-channel field-effect transistor, the gate of the first switch is connected to the drain of the control switch, the source of the first switch is connected to the first electronic component, and the drain of the first switch is connected to the display component.

[0020] According to some embodiments of the present invention, the second switch is an N-channel field-effect transistor, the gate of the second switch is connected to the source of the control switch, the source of the second switch is connected to the second electronic component, and the drain of the second switch is connected to the display component.

[0021] According to some embodiments of the present invention, when the control switch is used to control the first switch to be turned on and the second switch to be turned off, the control switch is used to generate a first on-state voltage and transmit it to the gate of the first switch, wherein the first on-state voltage is greater than or equal to the on-state voltage of the first switch.

[0022] According to some embodiments of the present invention, the mobile display device further includes: a display speaker and a base speaker;

[0023] The display speaker is disposed on the display unit, and the display speaker is connected in series between the first switch or the second switch and the display component;

[0024] The base speaker is mounted on the base, and the second output pin of the control module is connected to the base speaker; when the second input pin of the control module receives the first level of the position detection signal, the second output pin outputs a control signal to turn on the base speaker.

[0025] According to some embodiments of the present invention, when the first electronic component is a display battery and the second electronic component is a base battery, the battery capacity of the base battery is greater than the battery capacity of the display battery.

[0026] The embodiments of this utility model include at least the following beneficial effects: The detachable mobile display device in this utility model includes: a display unit, a first electronic component, a base, a second electronic component, a connection detection structure, and a control switch. The first electronic component is disposed on the display unit and connected to the display component in the display unit via a first switch; a bracket is provided on the base for connecting to the display unit; the second electronic component is disposed on the base and connected to the display component via a second switch; the connection detection structure is connected between the base and the display unit, and is used to detect whether the display unit and the bracket are connected; the control switch is connected to the connection detection structure, and controls the first switch to conduct when the connection detection structure detects that the display unit and the bracket are connected, otherwise controls the second switch to conduct. This embodiment of the application provides corresponding electronic components on both the display unit and the base, and then determines the connection state between the display unit and the base through the connection detection structure. Different switches are controlled according to the connection state to select different electronic components for operation, thereby adaptively meeting the performance requirements of different usage scenarios and expanding the application scenarios of the detachable mobile display device.

[0027] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a detachable mobile display device provided in one embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the connection detection structure provided in the embodiments of this application.

[0030] Figure 3 This is a schematic diagram of the connection detection structure provided in the embodiments of this application.

[0031] Figure 4 This is another schematic diagram of the connection detection structure provided in the embodiments of this application.

[0032] Figure 5 This is a functional connection diagram of the detachable mobile display device provided in the embodiments of this application. Detailed Implementation

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0034] It should be understood that in the description of the embodiments of this utility model, "a few" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0035] In the description of the embodiments of this utility model, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in the embodiments of this utility model in conjunction with the specific content of the technical solution.

[0036] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] In related technologies, batteries are typically large, which affects the thickness of the main unit. Furthermore, due to structural space limitations, the battery capacity that can be installed on the display screen is usually limited. Therefore, portable displays often use a base for power supply. While base-powered systems can accommodate larger battery capacities, they restrict the scenarios in which the display screen can be detached from the base, affecting portability. Therefore, this application provides a detachable mobile display device to solve this problem.

[0038] Reference Figure 1 As shown in the figure, this utility model embodiment provides a structural schematic diagram of a detachable mobile display device. Figure 1 The detachable mobile display device includes: a display unit 100, a first electronic component 110, a base 200, a second electronic component 210, and a connection detection structure 300.

[0039] The base 200 includes a support 400 for connecting to the display unit 100. This connection results in a single, mobile display device that can move freely, and the support 400 can be used to adjust the display unit 100 to a suitable position. The support 400 can be integrally formed with the base 200 or be detachable. Furthermore, the support 400 can be telescopic, allowing for quick adjustment of the distance between the display unit 100 and the base 200 according to actual usage needs.

[0040] In this embodiment, the first electronic component 110 is a display battery, and the second electronic component 210 is a base battery. The display unit 100 has a built-in display battery, and the base 200 has a built-in base battery. The base battery is connected to an external power source and can be charged by the external power source. The display battery has three charging methods: first, it is charged directly through the display unit 100 connected to an external power source; second, it is charged through the base battery when the display unit 100 is mounted on the bracket; and third, when the display unit 100 is mounted on the bracket, both are charged simultaneously in parallel. In addition, wheels can be fitted to the bottom of the base 200 to move the entire device to a convenient charging location as needed.

[0041] In this embodiment, the mobile display device is primarily used in scenarios similar to portable displays, which differs from portable tablets. The display unit 100 is relatively large and heavy, therefore, it is less frequently used detachably compared to scenarios where it is connected. The display battery is mainly used to support occasional detachment. Therefore, considering the device size and weight, the display battery capacity is designed to be smaller than that of the base battery. For example, the display battery uses polymer pouch cells with a capacity of less than 100Wh to support a thinner display unit and serve as a backup power source. The base battery uses a multi-series, multi-parallel combination of cylindrical 21700 / 18650 cells, with a maximum energy exceeding 200Wh.

[0042] Furthermore, the display unit 100 also includes a control switch 120 and a display component 150. The display component 150 is the core component for realizing the display function. The control switch 120 is responsible for selecting a suitable battery from the display battery and the base battery to power the display component 150 based on the connection status between the display unit 100 and the bracket 400. Immediately, the control switch 120 can be located on the display unit 100 or can operate on the display unit 100 via a wireless connection. In this embodiment, the connection detection structure 300 is connected between the base 200 and the display unit 100, and is used to detect the connection relationship between the display unit 100 and the bracket 400. Specifically, a portion of the connection detection structure 300 is located on the display unit 100, and another portion is located on the bracket 400. In one embodiment, the connection detection structure 300 is used to generate a first-level position detection signal when the display unit 100 is connected to the bracket 400, and a second-level position detection signal otherwise.

[0043] In one embodiment, the first level is low and the second level is high. (Refer to...) Figure 2 , Figure 2 This is a schematic diagram of the connection detection structure provided in the embodiments of this application. Figure 2 A connection detection structure 300 is set at the interface between the display unit 100 and the bracket 400. The connection detection structure 300 generates a position detection signal according to the connection status. The position detection signal is pulled up to the display battery through a resistor and pulled down to ground. Therefore, when the display unit 100 is connected to the bracket 400, the position detection signal is low level, and when the display unit 100 and the bracket 400 are not connected, the position detection signal is high level.

[0044] In one embodiment, the connection detection structure 300 performs connection detection using a detection probe. (Refer to...) Figure 3 , Figure 3This is a schematic diagram of the connection detection structure provided in an embodiment of this application. The connection detection structure 300 includes a connector 310 located on the display unit 100 and a detection pin 320 located on the bracket 400. When the display unit 100 is correctly installed on the bracket 400, the connector 310 and the detection pin 320 make physical contact. This contact completes a circuit, allowing current to flow from the connector 310 to the detection pin 320, thereby generating a low-level position detection signal, indicating that the display unit 100 has been successfully connected to the bracket 400.

[0045] In one embodiment, the connection detection structure 300 also performs connection detection via magnetic induction. (See also...) Figure 4 , Figure 4 This is another schematic diagram of the connection detection structure provided in this application embodiment. The connection detection structure 300 is an electromagnetic induction structure, mainly using the principle of electromagnetic induction for detection. The display unit 100 includes a magnet 330, which acts as a magnetic field source to interact with the magnetic sensor 340 on the bracket 400. The magnetic sensor 340 is mounted on the bracket 400 and can detect the presence and intensity of the magnetic field. When the display unit 100 approaches the bracket 400 and is correctly connected, the distance between the magnet 330 and the magnetic sensor 340 decreases, and the magnetic field strength detected by the sensor 340 increases. The magnetic sensor 340 compares the detected magnetic field strength with a preset field strength. This preset field strength is pre-set and used to determine whether the display unit has been correctly connected to the bracket. If the magnetic field strength detected by the magnetic sensor 340 is greater than or equal to the preset field strength, it indicates that the display unit 100 has approached or contacted the appropriate position on the bracket 400. At this time, the magnetic sensor 340 determines that the display unit 100 and the bracket 400 are in a connected state and generates a low-level position detection signal.

[0046] It is understandable that if the display unit 100 is not connected to the bracket 400, neither the detection needle nor the magnetic sensor in the connection detection structure 300 can obtain the preset signal. At this time, the position detection signal is not grounded and is therefore at a high level.

[0047] Next, refer to Figure 5 , Figure 5 This is a functional connection diagram of the detachable mobile display device provided in the embodiments of this application.

[0048] Reference Figure 5The display battery is mounted on the display unit 100 and connected to the display component 150 via a first switch 130. The base battery is connected to the display component 150 via a second switch 220. The control switch 120 is connected to the connection detection structure 300 to receive a position detection signal. The control switch 120 is connected to the connection detection structure 300 to receive a position detection signal. When the connection detection structure 300 detects that the display unit 100 and the bracket 400 are connected, it controls the first switch 130 to conduct; otherwise, it controls the second switch 220 to conduct. Specifically, when the control switch 120 receives a first-level position detection signal, it controls the first switch 130 to open and the second switch 220 to conduct; when the control switch 120 receives a second-level position detection signal, it controls the first switch 130 to conduct and the second switch 220 to open.

[0049] In other words, when control switch 120 receives a low-level position detection signal, it controls the first switch 130 to open and the second switch 220 to open, at which time the base battery supplies power to the display component 150. When control switch 120 receives a high-level position detection signal, it controls the first switch 130 to open and the second switch 220 to open, at which time the display battery supplies power to the display component 150.

[0050] In one embodiment, reference is made to Figure 5 A control module 140 is connected between the control switch 120 and the connection detection structure 300. The control module 140 is set on the display unit 100 and is used to better control the conduction and disconnection of the first switch 130 and the second switch 220.

[0051] The base battery has a corresponding base battery management 230, and the display battery has a corresponding display battery management 170. The base battery management 230 and the display battery management 170 can obtain information such as the battery capacity and battery voltage of the corresponding battery. In addition, the display unit 100 can also display the battery-related information of both batteries on the display interface, or it can display the battery-related information of only one battery according to the actual display requirements, which is not limited here.

[0052] In one embodiment, Figure 5 The control module 140 includes three input pins: a first input pin, a second input pin, and a third input pin. The first input pin is connected to the battery management 230 of the base battery to receive the base battery capacity. The second input pin is connected to the connection detection structure 300 to receive a bit detection signal. The third input pin is connected to the display battery management 170 to receive the display battery voltage. Simultaneously, the control module 140 is connected to the control switch 120 via a first output pin.

[0053] When the battery capacity is less than the preset capacity, it indicates that the base battery's power is insufficient to power the display component, and the current display battery voltage is higher than the power-off voltage, so the display battery can be used as backup power. However, if the position detection signal input to the second input pin is at the first level (low level), it indicates that the display unit 100 and the bracket 400 are properly connected. At this time, the control switch 120 will control the first switch 130 to open and the second switch 220 to open, using the base battery to power the display component 150. Therefore, the control module 140 needs to convert the position detection signal. The signal received by the second input pin of the control module 140 is at a low level, so the control module 140 performs level conversion to change the low level to a high level and outputs it through the first output pin. That is, the output of the first output pin is set to the second level (high level), thus converting the position detection signal from low level to high level. Next, after the control switch 120 receives the high-level signal, it controls the first switch 130 to open and the second switch 220 to open, using the display battery to power the display component 150 instead of the base battery. If no level conversion is required, the position detection signal received by the second input pin is directly transmitted to the first output pin.

[0054] Reference Figure 5 The control switch 120 is an N-channel MOSFET. The gate of control switch 120 is connected to the first output pin of control module 140, the source of control switch 120 is connected to the second switch 220, and the drain of control switch 120 is connected to the first switch 130. A high-level position detection signal needs to be greater than the turn-on voltage of control switch 120. When control switch 120 receives a high-level position detection signal, control switch 120 is activated, at which point control switch 120 is turned on, the first switch 130 is turned on, and the second switch 220 is turned off; conversely, when control switch 120 is turned off, the first switch 130 is turned off, and the second switch 220 is turned on. It can be understood that the gate of control switch 120 is connected to the detection structure 300 through control module 140.

[0055] Furthermore, the first switch 130 is an N-channel MOSFET. The gate of the first switch 130 is connected to the drain of the control switch 120, the source of the first switch 130 is connected to the display battery, and the drain of the first switch 130 is connected to the display assembly 150. Simultaneously, the second switch 220 is also an N-channel MOSFET. The gate of the second switch 220 is connected to the source of the control switch 120, the source of the second switch 220 is connected to the base battery, and the drain of the second switch 220 is connected to the display assembly 150. Additionally, the drain of the second switch 220 is connected to the drain of the first switch 130.

[0056] It is understandable that after the display unit 100 and the bracket 400 are connected, the parts that need to be connected, such as the base battery management 230, the gate of the second switch 220, and the source of the second switch 220, are connected through metal contacts or other means.

[0057] When control switch 120 receives a high-level signal, it controls first switch 130 to turn on and second switch 220 to turn off. After control switch 120 turns on, a first on-state voltage is generated and transmitted to the gate of first switch 130. The first on-state voltage is greater than or equal to the on-state voltage of first switch 130, causing the gate voltage of first switch 130 to rise, thereby turning on first switch 130. At this time, the source of first switch 130 is connected to the display battery, and the display battery supplies power to display component 150. At this time, the source and drain of second switch 220 are cut off.

[0058] Similarly, when control switch 120 receives a low-level signal, control switch 120 is turned off, the gate voltage of first switch 130 decreases, and thus first switch 130 is turned off. At the same time, the gate voltage of second switch 220 increases, second switch 220 is turned on, and the base battery supplies power to display component 150.

[0059] In this embodiment of the application, the detachable mobile display device has corresponding batteries installed on both the display unit and the base. Then, the connection status between the display unit and the base is determined by the connection detection structure. Different switches are controlled according to the connection status, and different batteries are selected for power supply, thereby adaptively meeting the battery life requirements of different usage scenarios and expanding the usage scenarios of the detachable mobile display device.

[0060] In one embodiment, to improve playback performance in different usage scenarios, the speaker is also configured based on the detection results of the connection detection structure. (See also...) Figure 5 In this embodiment of the application, the detachable mobile display device further includes a display speaker 160 in the display unit 100 and a base speaker 240 in the base 200. Specifically, the display speaker 160 is connected in series between the first switch 130 or the second switch 220 and the display component 150. That is, the display speaker 160 will be turned on regardless of whether the first switch 130 or the second switch 220 is turned on.

[0061] Next, for the base speaker 240, the second output pin of the control module 140 is connected to the base speaker 240. When the second input pin of the control module 140 receives a low-level position detection signal, it indicates that the connection between the display unit 100 and the bracket 400 is successful. At this time, the second output pin outputs a control signal to turn on the base speaker 240. In other words, the base speaker 240 will only be turned on when the display unit 100 and the bracket 400 are successfully connected.

[0062] For example, the display speaker 160 adopts a small-sized full-range speaker design. When the separation of the display unit 100 and the bracket 400 is detected, the display speaker 160 is turned on, driving the full-range speaker to work, while the base speaker 240 is turned off. The base speaker 240 adopts a large-cavity woofer design. When the display unit 100 and the bracket 400 are detected to be firmly inserted, both the display speaker 160 and the base speaker 240 are turned on simultaneously, driving the small-sized full-range speaker and the large-cavity woofer to work at the same time to achieve the ultimate sound effect.

[0063] Therefore, in this embodiment of the application, the positioning detection results of the connection detection structure are used to adaptively control the battery power supply and speaker playback to meet the needs of users in different usage scenarios, thereby improving the intelligence level of the mobile display device and the user experience.

[0064] The detachable mobile display device in this embodiment includes: a display unit, a display battery, a base, a base battery, a connection detection structure, and a control switch. The display battery is mounted on the display unit and connected to the display component via a first switch. A bracket is mounted on the base and connected to the display unit. The base battery is mounted on the base and connected to the display component via a second switch. The connection detection structure generates a low-level position detection signal when the display unit is connected to the bracket; otherwise, it generates a high-level position detection signal. The control switch is located on the display unit and connected to the connection detection structure, and receives the position detection signal. When the control switch receives a low-level position detection signal, it controls the first switch to open and the second switch to close; when the control switch receives a high-level position detection signal, it controls the first switch to close and the second switch to open. This embodiment of the application provides corresponding batteries on both the display unit and the base, and then determines the connection state between the display unit and the base through the connection detection structure. Different switches are controlled according to the connection state to select different batteries for power supply, thereby adaptively meeting the battery life requirements of different usage scenarios and expanding the application scenarios of the detachable mobile display device.

[0065] It should also be understood that the various implementation methods provided in this utility model embodiment can be combined arbitrarily to achieve different technical effects.

[0066] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present utility model.

Claims

1. A detachable mobile display device, characterized in that, include: Display unit, first electronic component, base, second electronic component, connection detection structure and control switch; The first electronic component is disposed on the display unit and is connected to the display component in the display unit via a first switch; The base is provided with a bracket, which is used to connect to the display unit; The second electronic component is mounted on the base and connected to the display component via a second switch; The connection detection structure is connected between the base and the display unit, and the connection detection structure is used to detect whether the display unit and the bracket are connected. The control switch is connected to the connection detection structure, and controls the first switch to turn on when the connection detection structure detects that the display unit and the bracket are connected; otherwise, it controls the second switch to turn on.

2. The detachable mobile display device according to claim 1, characterized in that, The connection detection structure is used to generate a first-level position detection signal when the display unit is connected to the bracket, and otherwise generate a second-level position detection signal. The control switch is used to receive the position detection signal. When the control switch receives the first-level arrival detection signal, it controls the first switch to open and the second switch to open. When the control switch receives the second-level position detection signal, it controls the first switch to turn on and the second switch to turn off.

3. The detachable mobile display device according to claim 1, characterized in that, It also includes a control module, which is disposed on the display unit; The first electronic component is a display battery, and the second electronic component is a base battery; The first input pin of the control module is connected to the base battery and is used to receive the base battery capacity. The second input pin of the control module is connected to the connection detection structure and is used to receive the position detection signal. The third input pin of the control module is connected to the display battery and is used to receive the display battery voltage. The first output pin of the control module is connected to the control switch. When the base battery capacity is less than the preset capacity and the display battery voltage is higher than the power-off voltage, and the position detection signal input by the second input pin is at the first level, the control module is used to set the first output pin to the second level and convert the position detection signal from the first level to the second level. Otherwise, the position detection signal received by the second input pin is transmitted to the first output pin.

4. The detachable mobile display device according to claim 1, characterized in that, The connection detection structure includes a connector located on the display unit and a detection pin located on the bracket. After the connector contacts the detection pin, it generates a first-level arrival detection signal.

5. The detachable mobile display device according to claim 1, characterized in that, The control switch is an N-channel field-effect transistor. The gate of the control switch is connected to the connection detection structure, the source of the control switch is connected to the second switch, and the drain of the control switch is connected to the first switch.

6. The detachable mobile display device according to claim 5, characterized in that, The first switch is an N-channel field-effect transistor. The gate of the first switch is connected to the drain of the control switch, the source of the first switch is connected to the first electronic component, and the drain of the first switch is connected to the display component.

7. The detachable mobile display device according to claim 6, characterized in that, The second switch is an N-channel field-effect transistor. The gate of the second switch is connected to the source of the control switch, the source of the second switch is connected to the second electronic component, and the drain of the second switch is connected to the display component.

8. The detachable mobile display device according to claim 7, characterized in that, When the control switch is used to control the first switch to be turned on and the second switch to be turned off, the control switch is used to generate a first on-state voltage transmitted to the gate of the first switch, and the first on-state voltage is greater than or equal to the on-state voltage of the first switch.

9. The detachable mobile display device according to claim 2, characterized in that, The mobile display device further includes: a display speaker and a base speaker; The display speaker is disposed on the display unit, and the display speaker is connected in series between the first switch or the second switch and the display component; The base speaker is mounted on the base, and the second output pin of the control module is connected to the base speaker; when the second input pin of the control module receives the first level of the position detection signal, the second output pin outputs a control signal to turn on the base speaker.

10. The detachable mobile display device according to any one of claims 1 to 9, characterized in that, When the first electronic component is a display battery and the second electronic component is a base battery, the battery capacity of the base battery is greater than the battery capacity of the display battery.