Quick detachable power module for unmanned aerial vehicle
By designing quick-release tethered power supply components and battery modules on drones, the problem of emergency power supply failure after the power cable of the drone's tethered power module breaks has been solved, realizing emergency power supply and continuous operation of drones, and improving the safety and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JINGWEI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-19
AI Technical Summary
Existing tethered power modules for drones cannot provide emergency power after the power cord breaks, causing the drone to lose power, which may lead to uncontrolled crashes and equipment damage, affecting the continuity and safety of operations.
A quick-detachable drone power supply module was designed, including a tethered power assembly and a battery module. The tethered power assembly is connected to a ground power box via a power cable, and the battery module is detachably mounted on the tethered power assembly to provide emergency power when the power cable is disconnected.
In the event of a power cord breakage, the battery module can immediately power the drone, preventing it from crashing out of control, ensuring the continuity of operations, reducing the risk of equipment damage, and improving work efficiency and safety.
Smart Images

Figure CN224375924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a quick-release UAV power supply module. Background Technology
[0002] With the rapid development of drone technology, the endurance and power supply stability of drones have become key factors affecting their operational efficiency. Currently, some drones use tethered power modules for power supply to achieve long-term continuous operation. These modules are connected to a power box on the ground via a power cable, providing continuous power support for the drone.
[0003] However, existing tethered power modules for drones have some limitations. When the power cable connecting the tethered power module to the ground power box breaks due to an accident, the tethered power module will be unable to continue supplying power to the drone. At this time, the drone will immediately lose power and cannot work normally due to the lack of an emergency power supply device. This will not only interrupt the drone's operation and reduce work efficiency, but may also cause the drone to crash out of control, resulting in equipment damage, data loss, and other problems. In some special application scenarios, it may even bring safety hazards and significant economic losses.
[0004] Therefore, how to solve the problem that existing drone tethered power modules cannot provide emergency power after the power line breaks has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] To overcome the above-mentioned defects, the present invention provides a quick-release drone power supply module, which solves the technical problem in the prior art that if the power cord of the drone's tethered power module is broken, the drone will immediately lose power and become unable to work due to power failure.
[0006] According to one aspect, at least one embodiment of the present invention provides a quick-release drone power supply module for supplying power to a drone, comprising:
[0007] A tethered power supply assembly is detachably mounted on the drone. The tethered power supply assembly can be connected to a power supply box on the ground via a power cord to supply power to the drone. The tethered power supply assembly is equipped with a first plug socket.
[0008] The battery module is detachably mounted on the tethered power assembly. The battery module is provided with a first male plug socket, which is electrically connected to a first female plug socket. The battery module is used to provide emergency power to the drone after the tethered power assembly is disconnected from the power box.
[0009] Optional, also includes:
[0010] A connector is detachably connected to the bottom of the drone. The connector has a first mounting slot, and the tethered power supply assembly is detachably connected to the first mounting slot.
[0011] Optionally, the tethered power supply assembly includes:
[0012] The outer shell has a first mounting base on its top, which engages with the first mounting slot. A second male plug is mounted on the first mounting base, and a second female plug is mounted on the connecting base. The second female plug is electrically connected to the electrical components of the UAV, and the second male plug is inserted into the second female plug.
[0013] The first male plug can also be plugged into the second female plug.
[0014] Optionally, a third plug socket is also provided on the side wall of the housing, which can be electrically connected to the power cord of the ground power box so that the tethered power assembly can power the UAV.
[0015] Optionally, the battery module includes:
[0016] The housing has a second mounting base on its top and a second mounting groove on its bottom, the second mounting base and the second mounting groove being engaged.
[0017] A battery pack, which is disposed inside the housing, is used to provide emergency power for the drone.
[0018] Optionally, both the first mounting base and the second mounting base are provided with a locking member, and the two locking members have the same structure. Both the first mounting groove and the second mounting groove are provided with a slot, and the two slots also have the same structure. Each locking member can engage with the corresponding slot.
[0019] Optionally, the clamping element includes:
[0020] Mounting plate;
[0021] A locking block, which is disposed on the mounting plate and located on the outside of the housing of the battery module;
[0022] The device includes two unlocking buttons, which are located on the mounting plate and on the two outer walls of the housing. Pressing the unlocking buttons retracts the locking block, thus placing the locking member in the unlocked position. The slots of the first and second mounting slots correspond to the locking blocks.
[0023] Optionally, the battery module further includes:
[0024] A fixing seat is detachably mounted on the inner peripheral wall of the housing. The fixing seat abuts against the end of the battery pack and is used to fix the battery pack.
[0025] Optionally, a number of heat sinks are provided on the outer wall of the housing.
[0026] Optionally, the tethered power supply assembly is provided with a light, which is located on the outside of the housing.
[0027] The beneficial effects of this utility model are as follows:
[0028] In this invention, an emergency battery module is installed below the tethered power assembly. When the power cable between the tethered power assembly and the ground power box breaks, the battery module can immediately provide emergency power to the drone, preventing the drone from losing power due to a sudden power outage, preventing the drone from crashing out of control, reducing equipment damage, ensuring operational safety, reducing economic losses, and ensuring the continuous operation of the task while improving work efficiency.
[0029] The tethered power supply unit can be detachably mounted on the drone, and the battery module can be detachably mounted on the tethered power supply unit. This detachable structure facilitates the individual installation, disassembly, repair, and replacement of each component, improving the equipment's maintenance convenience, extending its service life, and allowing for flexible replacement of different specifications of battery modules or tethered power supply units according to actual operational needs, thus enhancing the equipment's applicability. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0031] Figure 1 This is a schematic diagram of the power supply module installed on a drone in one embodiment of the present invention;
[0032] Figure 2 for Figure 1 A schematic diagram of the connecting seat in the embodiment;
[0033] Figure 3 for Figure 1 Exploded view of the tethered power supply assembly in the embodiment;
[0034] Figure 4 for Figure 1 A schematic diagram of the assembled tethered power supply assembly in one embodiment;
[0035] Figure 5 for Figure 1 Exploded view of the battery module in the embodiment;
[0036] Figure 6 for Figure 1 A schematic diagram of the assembled battery module in the embodiment;
[0037] Figure 7 for Figure 1 The embodiment shows a schematic diagram of the clamping component.
[0038] In the diagram: 1. Tethered power supply assembly; 11. First female plug socket; 12. Housing; 1201. Second mounting slot; 121. First mounting base; 122. Second male plug socket; 123. Third male plug socket; 2. Battery module; 21. Housing; 211. First male plug socket; 212. Second mounting base; 22. Battery pack; 23. Fixing base; 3. Connecting base; 301. First mounting slot; 3001. Slot; 31. Second female plug socket; 4. Clamping element; 41. Mounting plate; 42. Clamping block; 43. Unlocking button; 5. Heat sink; 6. Lighting lamp. Detailed Implementation
[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0040] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this utility model.
[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0045] Drones can be used in scenarios such as power line inspection, pesticide spraying, complex terrain mapping, emergency rescue, and logistics transportation. Therefore, the power supply stability of drones is crucial.
[0046] like Figures 1-7 As shown, this invention illustrates a quick-release drone power supply module according to one embodiment of the present invention, used to power a drone, including a tethered power supply assembly 1 and a battery module 2; the tethered power supply assembly 1 is detachably mounted on the belly of the drone, and can be connected to a power supply box on the ground via a power cord, and is provided with a first plug female socket 11; the battery module 2 is detachably mounted on the tethered power supply assembly 1, and is a cuboid structure, with a first plug male socket 211 at the top center that matches the first plug female socket 11, the first plug male socket 211 being electrically connected to the first plug female socket 11, and the battery module 2 being used to provide emergency power to the drone after the tethered power supply assembly 1 is disconnected from the power supply box.
[0047] Specifically, during normal drone operation, the tethered power supply assembly 1 is connected to the ground power box via a power cord, and current is transmitted to the drone through the tethered power supply assembly 1 to power it. When the power cord breaks unexpectedly, the connection between the tethered power supply assembly 1 and the power box is interrupted. At this time, the electrical connection between the first male connector 211 and the first female connector 11 causes the battery module 2 to start, providing emergency power to the drone and ensuring that the drone can continue to fly for a period of time. This solves the problem of the drone immediately losing power after the power cord breaks, avoids the drone from going out of control and crashing, ensures the continuity of the operation, and reduces the risk of equipment damage.
[0048] For example, such as Figure 2 As shown, in some examples, the connector 3 is a metal plate adapted to the shape of the drone's bottom, and is detachably connected to the drone's bottom via quick-release screws at the corners. The lower surface of the connector 3 has a square first mounting groove 301, and the inner wall of the first mounting groove 301 has two symmetrical sliding grooves. The top of the tethered power assembly 1 has a slider that mates with the sliding grooves, and the detachable connection with the first mounting groove 301 is achieved by the slider sliding within the sliding grooves.
[0049] First, fix the connector 3 to the bottom of the drone. Then, align the slider of the tethered power assembly 1 with the groove of the first mounting slot 301 of the connector 3, and push the tethered power assembly 1 into the first mounting slot 301 and fix it in place. When it is necessary to remove the tethered power assembly 1, simply push it in the opposite direction to remove it from the first mounting slot 301. This facilitates the installation and removal of the tethered power assembly 1 from the drone, improves the efficiency of maintenance and replacement, and the design of the connector 3 also enhances the stability of the connection between the tethered power assembly 1 and the drone.
[0050] For example, such as Figure 3 As shown, in some examples, the tethered power supply assembly 1 includes a housing 12, with a first mounting base 121 on the top of the housing 12. The first mounting base 121 is snapped into a first mounting groove 301. A second male plug 122 is provided on the first mounting base 121, and a second female plug 31 is provided on the connector 3. The second female plug 31 is electrically connected to the electrical components of the UAV, and the second male plug 122 is plugged into the second female plug 31. The first male plug 211 can also be plugged into the second female plug 31.
[0051] Specifically, the outer shell 12 of the tethered power supply assembly 1 is made of high-strength material. The first mounting base 121 on the top of the outer shell 12 matches the structure of the first mounting groove 301 on the connecting base 3, achieving a snap-fit connection. The first mounting base 121 is provided with a second plug male socket 122. The connecting base 3 is provided with a second plug female socket 31 at a position corresponding to the second plug male socket 122, and the second plug female socket 31 is electrically connected to the electrical components of the UAV via a wire. The first plug male socket 211 on the battery module 2 is the same as the second plug male socket 122 and can be plugged into the second plug female socket 31.
[0052] It should be noted that when the tethered power supply assembly 1 is installed on the connector 3, the first mounting base 121 is engaged with the first mounting slot 301, and the second plug male socket 122 is inserted into the second plug female socket 31.
[0053] Specifically, the second plug female socket 31 is electrically connected to the electrical components of the tethered power assembly 1 via the second plug male socket 122. Then, the tethered power assembly 1 is electrically connected to the ground power box so that the ground power supply can power the UAV. When the tethered power assembly 1 is not needed and only the battery module 2 is used, the first plug male socket 211 of the battery module 2 can be directly plugged into the second plug female socket 31 to realize the power supply mode of the battery module 2 powering the UAV alone.
[0054] The power supply module has increased flexibility in use, as it can be powered by either the tethered power supply assembly 1 or the battery module 2 alone. The dual connection method of snap-fit and plug-in also improves the reliability of power supply.
[0055] For example, such as Figure 4 As shown, in some examples, a third plug male socket 123 is also provided on the side wall of the housing 12. The third plug male socket 123 can be electrically connected to the power cord of the ground power box. Specifically, when using the tethered power assembly 1 to power the drone, the female socket on the power cord of the ground power box is aligned with the third plug male socket 123 on the side wall of the housing 12. At this time, the power of the ground power box is transmitted to the tethered power assembly 1 through the power cord and the third plug male socket 123, and then transmitted from the second plug male socket 122 of the tethered power assembly 1 to the second plug female socket 31 on the connector 3. The power is then transmitted to the drone through the second plug female socket 31 on the connector 3 to power the drone and enable the drone to work normally.
[0056] Drones using a power supply mode that connects the ground power box and the tethered power assembly 1 are mostly used for flying within a certain small area. This power supply mode provides a stable power source for the drone to work continuously. If the power line between the ground power box and the tethered power assembly 1 suddenly breaks, the battery module 2 can provide emergency power to the drone in time so that the drone can fly back safely.
[0057] For example, such as Figure 5 As shown, in some examples, the housing 21 of the battery module 2 is made of a lightweight material with good heat dissipation, such as aluminum alloy. The second mounting base 212 on the top of the housing 21 matches the size of the second mounting groove 1201 on the bottom of the outer casing 12, achieving a snap-fit connection. The battery pack 22 is composed of multiple lithium batteries connected in series, encased in insulating material, and fixedly installed inside the housing 21. The positive and negative terminals of the battery pack 22 are connected to the first plug socket 211 via wires.
[0058] Specifically, battery module 2 is snapped into the second mounting slot 1201 at the bottom of housing 12 via the second mounting base 212, thus connecting to the tethered power assembly 1. When the tethered power assembly 1 is disconnected from the power box, battery pack 22 transmits power to the drone through the electrical connection between the first male plug 211 and the first female plug 11, providing emergency power for the drone. The aluminum alloy housing 21 reduces the weight of battery module 2 and facilitates heat dissipation of battery pack 22. The snap-fit connection ensures a secure and reliable connection between battery module 2 and tethered power assembly 1, guaranteeing the stability of emergency power supply.
[0059] For example, such as Figure 3 and Figure 5 As shown, in some examples, both the first mounting base 121 and the second mounting base 212 are provided with a clamping member 4. The two clamping members 4 have the same structure. Both the first mounting groove 301 and the second mounting groove 1201 are provided with a slot 3001. The two slots 3001 also have the same structure. Each clamping member 4 can engage with the corresponding slot 3001. The cooperation between the clamping member 4 and the slot 3001 makes the installation and disassembly process convenient and labor-saving, while also ensuring the connection is firm after installation, preventing the tethered power assembly 1 or battery module 2 from falling off during the flight of the UAV.
[0060] For example, such as Figure 7 As shown, in some examples, both the battery module 2 and the tethered power assembly 1 are provided with two clamping parts 4. The clamping parts 4 include a mounting plate 41, a locking block 42, and an unlocking button 43. The mounting plate 41 is made of plastic and is thermally fused to the inner peripheral wall of the housing 21 of the battery module 2, and also thermally fused to the inner peripheral wall of the housing 12 of the tethered power assembly 1. The locking block 42 is a wedge-shaped structure and is located on the outer side of the mounting plate 41, with the inclined surface of the locking block 42 facing the installation direction. The two unlocking buttons 43 are respectively located on both sides of the mounting plate 41, on the two outer walls of the housing 21. One end of the unlocking button 43 is connected to the locking block 42, and the other end extends out of the surface of the housing 21. When the unlocking button 43 is pressed, it causes the locking block 42 to retract inward toward the mounting plate 41. The slot 3001 on the slide in the mounting groove corresponds to the position and shape of the locking block 42.
[0061] Specifically, during installation, the corresponding mounting base is pushed into the corresponding mounting slot. The locking block 42 slides within the track, and when it reaches the slot 3001, it springs into the slot 3001 to lock. To unlock, both unlocking buttons 43 are pressed simultaneously. The unlocking buttons 43 retract the locking block 42, placing the locking element 4 in the unlocked position. At this point, the corresponding mounting base can be pulled out of the corresponding mounting slot. The unlocking operation is simple and convenient; simply pressing the unlocking button 43 is sufficient to unlock, improving disassembly efficiency. Simultaneously, the cooperation between the wedge-shaped locking block 42 and the slot 3001 ensures stability after installation.
[0062] For example, such as Figure 5 As shown, in some examples, the battery module 2 also includes a mounting base 23, the shape of which matches the end of the battery pack 22. The mounting base 23 is detachably mounted on the inner peripheral wall of the housing 21 by screws, and the inner side of the mounting base 23 abuts against the end of the battery pack 22, forming an axial constraint on the battery pack 22.
[0063] It should be noted that when installing the battery pack 22, first place the battery pack 22 into the housing 21, and then install the fixing seat 23 on the inner peripheral wall of the housing 21, so that the fixing seat 23 abuts against the end of the battery pack 22. The fixing seat 23 constrains and prevents the battery pack 22 from moving axially within the housing 21. When it is necessary to replace the battery pack 22, remove the housing 21 of the battery module 2, take out the fixing seat 23 and the battery pack 22, and then remove the battery pack 22 from the fixing seat 23 for replacement.
[0064] The mounting bracket 23 secures the battery pack 22, preventing it from shifting or colliding during drone flight due to vibration or other reasons. This ensures the safe and stable operation of the battery pack 22 and also facilitates its replacement.
[0065] For example, such as Figure 3 As shown, in some examples, a number of heat sinks 5 are provided on the outer wall of the housing 12; the heat sinks 5 on the outer wall of the housing 12 of the tethered power assembly 1 are sheet-like structures, and there are several groups. Each group of heat sinks 5 includes multiple parallel heat sinks 5. The heat sinks 5 are integrally formed with the housing 12 and are evenly distributed on both sides of the housing 12.
[0066] Specifically, the tethered power supply assembly 1 generates heat during operation. This heat is transferred through the outer casing 12 to the heat sink 5. Due to the large surface area of the heat sink 5, the heat can be quickly dissipated into the surrounding air, reducing the internal temperature of the outer casing 12. This improves the heat dissipation efficiency of the tethered power supply assembly 1, preventing excessive temperature from affecting its performance and lifespan, and ensuring the stability of the power supply.
[0067] For example, such as Figure 3As shown, in some examples, the tethered power assembly 1 is equipped with a light 6, which may be an LED light, mounted on the front end of the outer casing 12. The light 6 is connected to the control circuit inside the tethered power assembly 1 via wires and can be controlled by the drone's remote controller.
[0068] It should be noted that when operating in low-light environments, the operator can turn on the LED light 6 via remote control. The LED light emits a strong light, illuminating the environment around the drone, making it easier for the operator to observe the drone's status and operational progress. After the operation is completed, the LED light 6 can be turned off via remote control. This extends the drone's operating time, allowing it to operate normally in low-light conditions, while also facilitating the operator's observation and control of the drone, thus improving operational safety.
[0069] It should be noted that the battery module 2 in this application can be directly electrically connected to the second plug female socket 31 of the connector 3. During short-term flight operations, the battery module 2 can independently power the drone. The tethered power assembly 1 can also independently power the drone. The tethered power assembly 1 and the battery module 2 can also be installed on the drone at the same time, with the battery module 2 serving as an emergency power source.
[0070] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A quick-release drone power supply module for supplying power to a drone, characterized in that, include: Tethered power assembly (1), the tethered power assembly (1) is detachably mounted on the drone, the tethered power assembly (1) can be connected to the power box on the ground through a power cord to power the drone, and the tethered power assembly (1) is provided with a first plug female socket (11). Battery module (2), which is detachably mounted on the tethered power assembly (1), is provided with a first plug male socket (211), which is electrically connected to the first plug female socket (11). The battery module (2) is used to provide emergency power to the UAV after the tethered power assembly (1) is disconnected from the power box.
2. The quick-release drone power supply module according to claim 1, characterized in that, Also includes: Connector (3), which is detachably connected to the bottom of the UAV, has a first mounting slot (301), and the tethered power supply assembly (1) is detachably connected to the first mounting slot (301).
3. The quick-release drone power supply module according to claim 2, characterized in that, The tethered power supply assembly (1) includes: The outer shell (12) has a first mounting base (121) on its top. The first mounting base (121) is snapped into the first mounting groove (301). The first mounting base (121) has a second male plug socket (122). The connecting base (3) has a second female plug socket (31). The second female plug socket (31) is electrically connected to the electrical components of the UAV. The second male plug socket (122) is plugged into the second female plug socket (31). The first male plug socket (211) can also be plugged into the second female plug socket (31).
4. A quick-release drone power supply module according to claim 3, characterized in that, A third plug socket (123) is also provided on the side wall of the outer shell (12), which can be electrically connected to the power cord of the ground power box so that the tethered power assembly (1) can supply power to the UAV.
5. A quick-release drone power supply module according to claim 3, characterized in that, The battery module (2) includes: The housing (21) has a second mounting base (212) on its top and a second mounting groove (1201) on its bottom. The second mounting base (212) and the second mounting groove (1201) are engaged. Battery pack (22), which is disposed inside the housing (21), is used to provide emergency power for the drone.
6. A quick-release drone power supply module according to claim 5, characterized in that, Both the first mounting base (121) and the second mounting base (212) are provided with a clamping member (4). The two clamping members (4) have the same structure. Both the first mounting groove (301) and the second mounting groove (1201) are provided with a slot (3001). The two slots (3001) also have the same structure. Each clamping member (4) can engage with the corresponding slot (3001).
7. A quick-release drone power supply module according to claim 6, characterized in that, The clamping element (4) includes: Mounting plate (41); A card block (42) is disposed on the mounting plate (41) and the card block (42) is located outside the housing (21) of the battery module (2); Unlock key (43), there are two unlock keys (43), the unlock keys (43) are set on the mounting plate (41), the two unlock keys (43) are located on the two outer walls of the housing (21), by pressing the unlock key (43) the card block (42) can be retracted so that the clamping member (4) is in the unlocked position, the card slot (3001) of the first mounting groove (301) and the second mounting groove (1201) corresponds to the card block (42).
8. A quick-release drone power supply module according to claim 5, characterized in that, The battery module (2) also includes: The fixing seat (23) is detachably disposed on the inner peripheral wall of the housing (21). The fixing seat (23) abuts against the end of the battery pack (22) and is used to fix the battery pack (22).
9. A quick-release UAV power supply module according to claim 3, characterized in that, Several sets of heat sinks (5) are provided on the outer wall of the outer shell (12).
10. A quick-release UAV power supply module according to claim 3, characterized in that, The tethered power supply assembly (1) is provided with a lighting lamp (6), which is located on the outside of the housing (12).