A hot plug switching power transmitter and a key storage structure thereof

Abstract

The utility model relates to a transmitter technical field especially is involved in a kind of transmitter and key storage structure of hot plug switching power, including power transmitter main body and hot plug key, power transmitter main body is integrated with antenna, RF power amplifier circuit, RF signal control circuit, DC / DC voltage conversion circuit and hot plug interface, wherein: antenna, RF signal control circuit and DC / DC voltage conversion circuit are all with RF power amplifier circuit electric connection, hot plug interface is electrically connected with DC / DC voltage conversion circuit, hot plug interface is set to be switched on and disconnected by the plug of hot plug key;DC / DC voltage conversion circuit realizes the high-low switching of output voltage by the switching on and off of hot plug interface, and the operation convenience greatly improves, user does not need to bend to find the small key of hidden position, also does not need to move peripheral equipment or check mini display screen, only by plugging hot plug key can complete power switching, and operation logic is simple and intuitive.

Description

Technical Field

[0001] This utility model relates to the field of transmitter technology, and in particular to a transmitter with hot-swappable power switching and its key storage structure. Background Technology

[0002] With the rapid popularization of smart home technology, various smart terminal devices such as robot vacuum cleaners, smart lights, temperature and humidity sensors, and high-definition projectors have been widely integrated into family life, providing users with a convenient and intelligent living experience. The stable operation of these smart devices highly depends on the coverage quality of wireless communication signals. Small power transmitters (such as ZigBee transmitters and Wi-Fi signal-enhancing transmitters) are widely used in home scenarios as core components for signal transmission. Their main function is to provide stable and continuous wireless communication support for various smart devices, ensuring data interaction and collaborative work between devices.

[0003] In actual home use, due to the dynamic changes in the needs of home space usage, the signal coverage of small-power transmitters needs to be flexibly adjusted accordingly, and the corresponding transmission power also needs to be adaptively switched. For example, in daily home use scenarios, only core areas such as the living room and bedroom require smart devices to operate. In this case, a low-power transmitter can meet the signal coverage requirements and avoid energy waste caused by power redundancy. However, in special scenarios such as family gatherings, smart devices (such as smart ambient lights and temperature and humidity sensors) in extended areas such as balconies, kitchens, and courtyards need to operate simultaneously. In this case, the transmitter needs to switch to a high-power mode to achieve signal coverage in the entire area and ensure the normal operation of all devices. In addition, in high-definition audio-visual wireless transmission scenarios, the power switching requirement is more frequent: during the day, when only the projector in the bedroom is used, a low-power transmitter can ensure signal clarity and reduce electromagnetic interference to other home appliances; at night, when the whole family uses TVs, projectors, and other devices to play audio-visual content in the living room and bedrooms at the same time, the transmitter needs to switch to a high-power mode to ensure synchronous signal transmission between multiple devices and avoid problems such as audio-visual stuttering and delays.

[0004] However, most small power transmitters on the market currently use physical buttons for power adjustment. This control method has many insurmountable drawbacks in actual use, seriously affecting user experience and safety. First, in terms of installation and ease of operation, small power transmitters are usually quite compact (similar in size to a regular socket). To avoid taking up space and affecting home aesthetics, they are often installed in concealed locations such as corners, behind TV cabinets, or under sofas. The physical buttons are designed to be extremely small and are often close to other electrical appliances. When adjusting the power, users need to bend over, turn sideways, or even move surrounding objects to touch the buttons, making the operation cumbersome and inconvenient. At the same time, some transmitters require users to confirm the power level through a mini display screen, which is difficult for elderly people or users with poor eyesight to accurately read the information on the display screen, further increasing the difficulty of operation. Second, in terms of safety, many transmitters are connected to multi-port power strips, with the physical buttons close to other electrical plugs. When users press the buttons to adjust the power, they are very likely to accidentally touch adjacent electrical plugs, which may cause the plugs to become loose, have poor contact, or even cause short circuits, electric shocks, and other safety hazards.

[0005] Furthermore, the drawbacks of physical button controls are even more pronounced in specific scenarios such as high-definition audio and video transmission. In these scenarios, dedicated audio and video transmitters are typically stacked with speakers, set-top boxes, projectors, and other equipment. Physical buttons are easily obstructed by these surrounding devices. When switching power, users must move the stacked equipment to access the buttons, which is cumbersome and may cause damage. In addition, some transmitters' physical buttons function as both power adjustment and signal band switching. The button markings are quite fine, and if the user presses the wrong position or with incorrect force, they are prone to accidentally switching to the wrong signal band mode, causing interruptions or stuttering in the audio and video transmission signal. This requires readjustment to restore normal operation, severely impacting the viewing experience. Simultaneously, in low-light conditions at night, users may have difficulty clearly identifying the button markings, leading to repeated accidental presses and further reducing ease of use.

[0006] In summary, the physical button-based power adjustment method used in existing small power transmitters suffers from numerous drawbacks, including inconvenience in operation, insufficient safety, susceptibility to misoperation, and negative impact on user experience. It fails to meet the dynamically changing needs of home environments and is ill-suited to the operating habits of different user groups. Therefore, developing a convenient, safe, reliable, and fast power switching control solution for small power transmitters has become a pressing technical challenge in the current smart home field. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] A hot-swappable power-switching transmitter includes a power transmitter body and a hot-swappable key. The power transmitter body integrates an antenna, an RF power amplifier circuit, an RF signal control circuit, a DC / DC voltage conversion circuit, and a hot-swappable interface. The antenna, RF signal control circuit, and DC / DC voltage conversion circuit are all electrically connected to the RF power amplifier circuit. The hot-swappable interface is electrically connected to the DC / DC voltage conversion circuit. The hot-swappable interface is configured to be switched on and off by inserting and removing the hot-swappable key. The DC / DC voltage conversion circuit outputs different voltage levels to the RF power amplifier circuit. The RF signal control circuit outputs RF control signals to the RF power amplifier circuit. The RF power amplifier circuit outputs RF signals of corresponding power to the antenna according to the different voltage levels. The DC / DC voltage conversion circuit switches between high and low output voltages by switching the hot-swappable interface on and off.

[0009] Preferably, the hot-swappable key is a USB connector, the hot-swappable interface is a USB interface, the USB connector is compatible with the USB interface and supports hot-swappable operation; the USB interface has a built-in detection pin, which is used to identify the insertion and removal status of the USB connector. When the USB connector is inserted into the USB interface, the detection pin outputs a low-level signal to trigger the USB interface to conduct; when the USB connector is removed, the detection pin outputs a high-level signal to trigger the USB interface to disconnect.

[0010] Preferably, the hot-swappable interface is provided with a detection pin, and the hot-swappable key is provided with an identification resistor connected to the detection pin; when the detection pin detects the resistance value, it is determined that the hot-swappable key is inserted and the hot-swappable interface is turned on; when the detection pin does not detect the resistance value, it is determined that the hot-swappable key is removed and the hot-swappable interface is turned off.

[0011] Preferably, the DC / DC voltage conversion circuit is provided with a resistance detection circuit electrically connected to the detection pin. The resistance detection circuit is used to collect and identify the resistance value, and control the DC / DC voltage conversion circuit to output different levels of high voltage to the RF power amplifier circuit according to the different resistance values.

[0012] Preferably, the DC / DC voltage conversion circuit is supplied with a 12V DC power supply. When the hot-swappable interface is on, the DC / DC voltage conversion circuit converts the 12V input voltage into a high voltage and outputs it to the RF power amplifier circuit. When the hot-swappable interface is off, the DC / DC voltage conversion circuit converts the 12V input voltage into a low voltage and outputs it to the RF power amplifier circuit.

[0013] A key storage structure includes a transmitter with hot-swappable power switching as described above, characterized in that it further includes a constraint structure disposed on the surface of the power transmitter body, the constraint structure being configured to constrain the hot-swappable key so that the hot-swappable key is constrained on the power transmitter body after being pulled out from the hot-swappable interface.

[0014] Preferably, the constraint structure is a magnetic structure, and the hot-swappable key is magnetically attached to the main body of the power transmitter after being pulled out from the hot-swappable interface.

[0015] Preferably, the constraint structure is heat dissipation fins formed on both sides of the power transmitter body. The heat dissipation fins are provided with a locking structure adapted to the hot-swappable key. After the hot-swappable key is pulled out from the hot-swappable interface, it is locked onto the heat dissipation fins by the locking structure.

[0016] Preferably, the constraint structure is a socket provided on the main body of the power transmitter. After the hot-swappable key is pulled out from the hot-swappable interface, it is constrained on the main body of the power transmitter by engaging with the socket.

[0017] Compared with the prior art, the beneficial effects of this utility model are: The ease of operation has been greatly improved. Users do not need to bend down to find the small buttons in hidden locations, nor do they need to move surrounding devices or look at the mini display screen. Power switching can be completed simply by plugging and unplugging the hot-swappable key. The operation logic is simple and intuitive, and it is especially suitable for the usage habits of the elderly, people with poor eyesight, and other groups. Safety is significantly enhanced, avoiding the risk of accidental contact due to physical buttons being close to electrical plugs. Adjustments can be made without touching the transmitter body, reducing the probability of short circuits, electric shocks and other safety hazards. It effectively avoids the problem of accidental operation, abandons the design of physical buttons that have multiple functions, and realizes power switching only through hot-swapping action, so there will be no accidental switching to signal frequency band mode. Especially in high-definition audio and video transmission scenarios, it can avoid audio and video stuttering and interruption caused by accidental operation, and ensure a stable viewing experience. Energy consumption control is more flexible, and power can be switched on demand through hot-swapping. When a wide range of coverage is not required, low power output can be maintained, which can reduce redundant energy waste and meet the needs of energy conservation and environmental protection. The overall solution is adapted to the dynamically changing signal coverage needs in home scenarios, providing reliable support for the stable operation of smart home devices.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a circuit module connection block diagram of this utility model; Figure 2 This is another circuit module connection block diagram of this utility model; Figure 3 This is a structural schematic diagram of one embodiment of the present invention; Figure 4 This is a schematic diagram of another embodiment of the present invention; Figure 5 This is a structural schematic diagram of another embodiment of the present invention.

[0021] The reference numerals and names in the figure are as follows: The components include: power transmitter body 10, antenna 11, RF power amplifier circuit 12, RF signal control circuit 13, DC / DC voltage conversion circuit 14, hot-swappable interface 15, resistance detection circuit 16, constraint structure 17, heat dissipation fins 18, locking structure 19, hot-swappable key 20, and identification resistor 21. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see Figure 1-5In this embodiment of the present invention, a hot-swappable power-switching transmitter includes a power transmitter body 10 and a hot-swappable key 20. The power transmitter body 10 integrates an antenna 11, an RF power amplifier circuit 12, an RF signal control circuit 13, a DC / DC voltage conversion circuit 14, and a hot-swappable interface 15. The antenna 11, RF signal control circuit 13, and DC / DC voltage conversion circuit 14 are all electrically connected to the RF power amplifier circuit 12. The hot-swappable interface 15 is electrically connected to the DC / DC voltage conversion circuit 14. The hot-swappable interface 15 is configured to be switched on and off by inserting or removing the hot-swappable key 20. The DC / DC voltage conversion circuit 14 outputs different voltage levels to the RF power amplifier circuit 12. The RF signal control circuit 13 outputs RF control signals to the RF power amplifier circuit 12. The RF power amplifier circuit 12 outputs RF signals of corresponding power to the antenna 11 according to the different voltage levels. The DC / DC voltage conversion circuit 14 achieves high-low voltage switching of the output voltage through the switching on and off of the hot-swappable interface 15.

[0024] In the above technical solution, the DC / DC voltage conversion circuit 14, RF power amplifier circuit 12, RF signal control circuit 13, and antenna 11 within the power transmitter body 10 form a complete signal transmission link. The DC / DC voltage conversion circuit 14 is responsible for outputting voltages of different levels, and the RF signal control circuit 13 sends RF control signals to the RF power amplifier circuit 12. Both work together on the RF power amplifier circuit 12, enabling it to output RF signals of corresponding power to the antenna 11 according to the differences in input voltage levels. The hot-swappable interface 15, as a key control component, connects with the DC / DC voltage conversion circuit 14... 4. Electrical connection: When the hot-swap key 20 is inserted into the hot-swap interface 15, the interface is turned on and triggers the DC / DC voltage conversion circuit 14 to switch to the preset high-voltage output mode, thereby enabling the RF power amplifier circuit 12 to output a high-power RF signal and achieve wide-range signal coverage; when the hot-swap key 20 is pulled out of the interface, the interface is disconnected, the DC / DC voltage conversion circuit 14 automatically switches to the low-voltage output mode, and the RF power amplifier circuit 12 outputs a low-power RF signal to meet the basic signal coverage requirements. The whole process does not require any additional button operation, and the power can be quickly switched by simply inserting and removing the hot-swap key 20.

[0025] This technical solution effectively addresses many pain points associated with physical button power adjustment in existing small power transmitters. Firstly, it significantly improves ease of operation. Users no longer need to bend down to find hidden buttons, move surrounding equipment, or check the mini-display; power switching is completed simply by inserting and removing the hot-swappable key 20. The operation logic is simple and intuitive, especially suitable for the usage habits of the elderly and those with poor eyesight. Secondly, it significantly enhances safety, avoiding the risk of accidental contact due to physical buttons being near electrical plugs. Adjustment can be completed without touching the transmitter body, reducing the probability of short circuits, electric shocks, and other safety hazards. Third, it effectively avoids the problem of accidental operation. It abandons the multi-functional physical button design and achieves power switching only through hot-swapping, preventing accidental switching to signal frequency band mode. Especially in high-definition audio and video transmission scenarios, it can avoid audio and video stuttering and interruption caused by accidental operation, ensuring a stable viewing experience. Fourth, it offers more flexible energy consumption control. Power switching is achieved on demand through hot-swapping. When wide coverage is not required, it maintains low power output, which can reduce redundant energy waste and meet the requirements of energy conservation and environmental protection. The overall solution is adapted to the dynamically changing signal coverage requirements in home scenarios, providing reliable support for the stable operation of smart home devices.

[0026] Please see Figure 3-5 Based on the above technical solution, it is further proposed that the hot-swappable key 20 is a USB connector and the hot-swappable interface 15 is a USB interface. The USB connector is compatible with the USB interface and supports hot-swappable operation. The USB interface has a built-in detection pin, which is used to identify the insertion and removal status of the USB connector. When the USB connector is inserted into the USB interface, the detection pin outputs a low-level signal to trigger the USB interface to conduct. When the USB connector is removed, the detection pin outputs a high-level signal to trigger the USB interface to disconnect.

[0027] In the above technical solution, the USB connector is used as the hot-swap key 20, and the USB interface is used as the hot-swap interface 15. The electrical connection technology of the USB connector and USB interface is mature, and it is not prone to failure such as button wear or malfunction after long-term use, thus extending the service life of the transmitter. The built-in detection pin of the USB interface can identify the plugging and unplugging status of the USB connector in real time and accurately. The interface is turned on or off by clearly switching high-level or low-level signals, avoiding problems such as poor contact and accidental touch that may occur with physical buttons, and ensuring stable response of power switching action. In addition, this design also retains the advantages of the original hot-swap solution, which does not require bending over or looking at the display screen. At the same time, with the widespread recognition of the USB interface, it further reduces the operation and learning cost for the elderly, visually impaired people and other groups, making power adjustment more in line with the daily usage habits of the general public. Especially in scenarios such as high-definition audio and video transmission, it can more stably ensure the accuracy of signal switching, avoid audio and video interruption due to misoperation, and comprehensively improve the user experience.

[0028] Please see Figure 2 Based on the above technical solution, it is further proposed that the hot-swappable interface 15 is provided with a detection pin, and the hot-swappable key 20 is provided with an identification resistor 21 connected to the detection pin; when the detection pin detects the resistance value, it is determined that the hot-swappable key 20 is inserted and the hot-swappable interface 15 is turned on; when the detection pin does not detect the resistance value, it is determined that the hot-swappable key 20 is removed and the hot-swappable interface 15 is turned off. By identifying the resistance value of resistor 21, the uniqueness and stability of the resistance value identification can be effectively avoided, preventing poor contact caused by interface oxidation or dust accumulation, or false triggering caused by external electromagnetic interference. This ensures accurate connection when the hot-swappable key 20 is inserted and reliable disconnection when removed, guaranteeing stable execution of power switching. Furthermore, different specifications of hot-swappable keys 20 can be configured with different resistance values ​​for the identification resistor 21. The transmitter body can detect the resistance difference identified by the pins and only respond to keys with matching resistance values, preventing users from accidentally inserting other types of interface accessories, such as ordinary USB connectors or plugs / unplugs from other devices. This is especially beneficial in scenarios with multiple devices used simultaneously, such as a living room power strip connecting a transmitter, charger, and set-top box, significantly reducing the risk of misoperation. In addition, this design continues the advantages of no physical buttons and easy operation, while the hardware-level resistance value identification mechanism further enhances the safety of device operation, preventing power anomalies caused by false triggering, such as energy waste from accidental switching to high power or signal interruption due to accidental switching to low power. This comprehensively ensures the stable operation of smart home devices and convenient user experience.

[0029] Please see Figure 2Based on the above technical solution, a further proposal is made to include a resistance detection circuit 16 electrically connected to the detection pin in the DC / DC voltage conversion circuit 14. The resistance detection circuit 16 is used to collect the resistance value of the identification resistor 21 and control the DC / DC voltage conversion circuit 14 to output different levels of high voltage to the RF power amplifier circuit 12 according to the different resistance values. By configuring identification resistors 21 with different resistance values, the resistance detection circuit 16 collects differentiated resistance value signals and controls the DC / DC voltage conversion circuit 14 to output high voltages corresponding to different levels. This enables the RF power amplifier circuit 12 to output multi-level high-power RF signals, which can meet the ultra-high power demand for full-area coverage during family gatherings, as well as the medium power demand for partial expansion areas such as balconies and kitchens. This avoids energy waste in a single high-power mode and achieves more precise energy consumption control. Furthermore, in high-definition audio-visual transmission scenarios, a hot-swappable key 2 with corresponding resistance values ​​can be used depending on the number of devices or the transmission distance. 0. The voltage level is accurately matched through the resistance detection circuit 16 to ensure the stability of signal transmission in different scenarios, effectively avoiding electromagnetic interference caused by excessive power or audio-visual stuttering caused by insufficient power. Users do not need to switch between multiple power levels through complicated button combinations or screen settings. They only need to replace the hot-swappable key 20 with different resistance values ​​of the identification resistor 21 to complete the adjustment. The operation logic is simple and intuitive. At the same time, the hardware identification mechanism of the resistance detection circuit 16 avoids possible misoperation or system failure in software settings, ensuring long-term stable operation of the device and fully adapting to the diverse and dynamic usage needs in home scenarios.

[0030] Based on the above technical solution, it is further proposed that the DC / DC voltage conversion circuit 14 is powered by a 12V DC power supply. When the hot-swappable interface 15 is turned on, the DC / DC voltage conversion circuit 14 converts the 12V input voltage into a high voltage and outputs it to the RF power amplifier circuit 12. When the hot-swappable interface 15 is turned off, the DC / DC voltage conversion circuit 14 converts the 12V input voltage into a low voltage and outputs it to the RF power amplifier circuit 12. This provides the RF power amplifier circuit 12 with accurate voltage support that is suitable for home scenarios, ensuring the stability of the full-area signal coverage in high-power mode and ensuring low power consumption and low interference in low-power mode. At the same time, the universality of the 12V DC power supply also improves the installation compatibility of the transmitter.

[0031] Please see Figure 3-5This paper proposes a key storage structure, including a hot-swappable power switching transmitter as described above. The key feature is that it further includes a constraint structure 17 disposed on the surface of the power transmitter body 10. The constraint structure 17 is configured to constrain the hot-swappable key 20, so that the hot-swappable key 20 is constrained to the power transmitter body 10 after being pulled out from the hot-swappable interface 15. This effectively solves the problem of the hot-swappable key 20 being easily lost. The hot-swappable key 20 is small in size and easily lost or misplaced if left lying around after being pulled out. The constraint structure 17 can fix the key to the transmitter body, eliminating the need for the user to search for a storage location. It can be quickly retrieved when power switching is needed, avoiding the problem of being unable to adjust the power due to a lost key.

[0032] To further improve ease of operation, the following three implementation methods will be further explained: Firstly, such as Figure 3 As shown, the constraint structure 17 is a magnetic structure. After the hot-swappable key 20 is pulled out from the hot-swappable interface 15, it is magnetically attached to the power transmitter body 10. The magnetic structure makes it easy for the user to quickly fix the hot-swappable key 20 to the power transmitter body 10.

[0033] Secondly, such as Figure 4 As shown, the constraint structure 17 consists of heat dissipation fins 18 formed on both sides of the power transmitter body 10. The heat dissipation fins 18 are provided with a locking structure 19 adapted to the hot-swappable key 20. The locking structure 19 includes arc-shaped fins 191 that wrap around the hot-swappable key 20 on both sides and a protrusion 192 disposed between the two arc-shaped fins 191 to hold the hot-swappable key 20 in place. The two arc-shaped fins 191 and the protrusion 192 form a locking structure 19 with damping for the hot-swappable key 20. After the hot-swappable key 20 is pulled out from the hot-swappable interface 15, it is damped and locked onto the heat dissipation fins 18 by the locking structure 19. The heat dissipation fins 18 with the locking structure 19 achieve the storage function without changing the heat dissipation function of the heat dissipation fins 18, and do not require additional space in the transmitter body.

[0034] Thirdly, such as Figure 5 As shown, the constraint structure 17 is a socket provided on the power transmitter body 10. After the hot-swappable key 20 is pulled out from the hot-swappable interface 15, it is constrained to the power transmitter body 10 by engaging with the socket. This provides a dedicated storage structure for the hot-swappable key 20, allowing for better protection of the hot-swappable key 20 when the power transmitter body 10 is used outdoors or carried.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A transmitter with hot-swappable power switching, characterized in that, Includes a power transmitter body (10) and a hot-swappable key (20). The power transmitter body (10) integrates an antenna (11), an RF power amplifier circuit (12), an RF signal control circuit (13), a DC / DC voltage conversion circuit (14), and a hot-swappable interface (15). Among them, the antenna (11), the RF signal control circuit (13), and the DC / DC voltage conversion circuit (14) are all electrically connected to the RF power amplifier circuit (12), and the hot-swappable interface (15) is electrically connected to the DC / DC voltage conversion circuit (14). 5) It is set to be turned on and off by inserting and removing the hot-swappable key (20); the DC / DC voltage conversion circuit (14) is used to output different levels of voltage to the RF power amplifier circuit (12), the RF signal control circuit (13) is used to output RF control signals to the RF power amplifier circuit (12), and the RF power amplifier circuit (12) outputs RF signals of corresponding power to the antenna (11) according to different levels of voltage; the DC / DC voltage conversion circuit (14) realizes the switching of high and low output voltage by turning on and off the hot-swappable interface (15).

2. The transmitter with hot-swappable power switching according to claim 1, characterized in that, The hot-swap key (20) is a USB connector, and the hot-swap interface (15) is a USB interface. The USB connector is compatible with the USB interface and supports hot-swap operation. The USB interface has a built-in detection pin, which is used to identify the insertion and removal status of the USB connector. When the USB connector is inserted into the USB interface, the detection pin outputs a low-level signal to trigger the USB interface to conduct. When the USB connector is removed, the detection pin outputs a high-level signal to trigger the USB interface to disconnect.

3. A transmitter with hot-swappable power switching according to claim 1, characterized in that, The hot-swappable interface (15) is provided with a detection pin, and the hot-swappable key (20) is provided with an identification resistor (21) connected to the detection pin. When the detection pin identifies the resistance value, it is determined that the hot-swappable key (20) is inserted and the hot-swappable interface (15) is turned on. When the detection pin does not identify the resistance value, it is determined that the hot-swappable key (20) is removed and the hot-swappable interface (15) is turned off.

4. A transmitter with hot-swappable power switching according to claim 3, characterized in that, The DC / DC voltage conversion circuit (14) is equipped with a resistance detection circuit (16) electrically connected to the detection pin. The resistance detection circuit (16) is used to collect the resistance value of the identification resistor (21) and control the DC / DC voltage conversion circuit (14) to output different levels of high voltage to the RF power amplifier circuit (12) according to the different resistance values.

5. A transmitter with hot-swappable power switching according to claim 1, characterized in that, The DC / DC voltage converter circuit (14) is powered by a 12V DC power supply. When the hot-swappable interface (15) is turned on, the DC / DC voltage converter circuit (14) converts the 12V input voltage into a high voltage and outputs it to the RF power amplifier circuit (12). When the hot-swappable interface (15) is turned off, the DC / DC voltage converter circuit (14) converts the 12V input voltage into a low voltage and outputs it to the RF power amplifier circuit (12).

6. A key storage structure, comprising a transmitter with hot-swappable power switching as described in any one of claims 1-5, characterized in that, It also includes a constraint structure (17) disposed on the surface of the power transmitter body (10), the constraint structure (17) being configured to constrain the hot-swap key (20) so that the hot-swap key (20) is constrained on the power transmitter body (10) after being pulled out from the hot-swap interface (15).

7. A key storage structure according to claim 6, characterized in that, The constraint structure (17) is a magnetic structure. After the hot-swappable key (20) is pulled out from the hot-swappable interface (15), it is attached to the main body (10) of the power transmitter through the magnetic structure.

8. A key storage structure according to claim 6, characterized in that, The constraint structure (17) is a heat dissipation fin (18) formed on both sides of the power transmitter body (10). The heat dissipation fin (18) is provided with a locking structure (19) adapted to the hot-swappable key (20). After the hot-swappable key (20) is pulled out from the hot-swappable interface (15), it is locked onto the heat dissipation fin (18) through the locking structure (19).

9. A key storage structure according to claim 6, characterized in that, The constraint structure (17) is a socket set on the main body (10) of the power transmitter. After the hot-swappable key (20) is pulled out from the hot-swappable interface (15), it is constrained on the main body (10) of the power transmitter by plugging and engaging with the socket.

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