Multi-level voltage safety external power connection device and method

Abstract

The invention discloses a multi-level voltage safety external power connection device and method, and relates to the technical field of power management. The multi-level voltage safety external power connection device comprises at least one group of power supply units and indicator lamps; the external electric unit comprises an external box, a panel, a fixing assembly and a positioning piece; the external power unit is used for external power protection of the power supply unit. The portable multi-path power supply device has the advantages that the problems that a traditional power supply device is inconvenient to carry and difficult in multi-path output are solved, the real-time monitoring and safety protection functions are provided, and the portable multi-path power supply device is suitable for detection and maintenance work of various power system devices. In addition, indirect connection of external equipment is also realized, and the overall safety of the circuit is ensured. The elastic piece on the inner side can rapidly release potential energy when the limiting is relieved, the external box is popped out, rapid power failure is achieved, and the safety is improved. And the driving part is automatically started when the temperature is abnormal, so that the safety protection function of the system is enhanced, and the safety and reliability of the external electric mechanism are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power management, and in particular to a multi-level voltage safe external power connection device and method. Background Art

[0002] In the inspection and maintenance of power system equipment, we often face the requirements of multiple voltage levels and different types of power supplies. For example, some equipment may require 12V DC power supply, while other equipment may require 24V AC power supply. In order to meet these different requirements, technicians usually need to carry multiple power supply devices, which not only increases the burden of carrying, but also reduces work efficiency.

[0003] In addition, in many workplaces, electrical equipment is widely distributed and dispersed, and the distance to the power supply is long, so it is necessary to lay long power lines. In this case, the management and maintenance of power lines become very complicated, which not only increases the difficulty of work, but also may cause safety hazards due to damage or poor contact of the power lines. More importantly, there are great safety hazards in the use of existing mobile power supplies. Due to the lack of effective protection measures, mobile power supplies are prone to overload, short circuit and other faults, which may not only cause damage to the power supply equipment itself, but also cause circuit failures in the connected equipment, and even cause serious accidents such as fire. Summary of the invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a multi-level voltage safety external power device, which can solve the problem of lack of effective protection measures for mobile power supplies.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a multi-level voltage safety external power device, which includes at least one set of power supply units and an indicator light arranged on the top side of the power supply unit;

[0007] The external power unit comprises an external box, a panel arranged on one side of the external box, fixing components arranged on both sides of the external box, and a positioning member arranged on the outside of the panel;

[0008] The external power unit is used for external power protection of the power supply unit.

[0009] As a preferred solution of the multi-level voltage safety external power device described in the present invention, the main unit includes a box body, a power module, a transformer module, an inverter module, a detection module, a display screen module, and a switch control module.

[0010] As a preferred solution of the multi-level voltage safety external power device described in the present invention, the detection module includes a voltage sensor, a current sensor and a temperature sensor, which are used to monitor key parameters such as output voltage, current, temperature, etc. in real time.

[0011] As a preferred solution of the multi-level voltage safety external power device of the present invention, wherein: the voltage transformation module is used to realize multi-channel and multi-level voltage output;

[0012] The inverter module includes an AC inverter module and a DC inverter module; it is used to convert DC power into AC power or to convert AC power into DC power.

[0013] As a preferred solution of the multi-level voltage safety external power device described in the present invention, the switch control module has an overload protection function, and when an abnormality is detected, it can automatically cut off the power output to ensure safe use.

[0014] As a preferred solution of the multi-level voltage safety external power device of the present invention, the external connection box includes a jack penetrating through the end surface thereof, movable grooves arranged on both sides thereof, and a connecting groove arranged on the end surface thereof.

[0015] As a preferred solution of the multi-level voltage safety external power device described in the present invention, the fixing assembly includes a first limit rod hingedly arranged in one of the movable grooves, a second limit rod arranged on the inner side of the other movable groove, and multiple groups of elastic members arranged on the inner side of the external box.

[0016] As a preferred solution of the multi-level voltage safety external power device described in the present invention, wherein: the first limit rod and the second limit rod are sleeved with a connecting belt, and the two ends of the connecting belt are cross-sleeved on the first limit rod and the second limit rod.

[0017] As a preferred solution of the multi-level voltage safety external power connection device of the present invention, wherein: the first limit rod includes a column arranged at its end, and a clamping ring arranged at one side of the column;

[0018] The second limiting rod has the same structure as the first limiting rod, and the second limiting rod further includes a driving member disposed at an end thereof.

[0019] To solve the above technical problems, the present invention provides the following technical solutions: a multi-level voltage safe external power method, comprising installing an external power unit to a power supply unit and achieving a stable connection through a fixing assembly;

[0020] Use the detection module to monitor key parameters such as voltage, current and temperature of the power supply output in real time;

[0021] When an abnormal situation is detected, the switch control module automatically cuts off the power output to ensure safe use;

[0022] The display module displays monitoring data, including voltage, current, temperature and other information, making it convenient for users to monitor the power status;

[0023] When the ambient temperature is abnormal, the driving part automatically starts, the fixation is released by rotating the limit rod, and the external box is ejected by the elastic part to achieve rapid power off.

[0024] Beneficial effects of the present invention: The multi-level voltage safety external power device of the present invention not only solves the problems of inconvenient portability and difficulty in multi-channel output of traditional power supply equipment, but also provides real-time monitoring and safety protection functions, and is suitable for the detection and maintenance of various power system equipment. In addition, the indirect connection of external devices is realized, ensuring the overall safety of the circuit. The first limit rod and the second limit rod are fixed and disassembled by rotation, and the operation is simple and quick. The elastic part on the inside can quickly release the potential energy when the limit is released, and the external box is ejected to achieve rapid power off and improve safety. The drive part automatically starts when the temperature is abnormal, which further enhances the safety protection function of the system and significantly improves the safety and reliability of the external power mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the multi-level voltage safety external power device of the present invention.

[0027] Figure 2 It is a schematic diagram of the explosion of the multi-level voltage safety external power device of the present invention.

[0028] Figure 3 It is a partial cross-sectional view of the present invention.

[0029] Figure 4 It is a schematic diagram of the local structure of the present invention.

[0030] Figure 5 The figure is a flow chart of the multi-level voltage safe external power connection method of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and provides a multi-level voltage safety external power device, comprising at least one set of power supply units 100, and an indicator light 200 arranged on the top side of the power supply unit 100;

[0036] The external power unit 300 includes an external box 301, a panel 302 disposed on one side of the external box 301, fixing components 303 disposed on both sides of the external box 301, and a positioning member 304 disposed on the outside of the panel 302;

[0037] The external power unit 300 is used to protect the external power of the power supply unit 100 .

[0038] Furthermore, it also includes a main unit 400, which includes a box body 401, a power module 402, a transformer module 403, an inverter module 404, a detection module 405, a display screen module 406, and a switch control module 407.

[0039] Furthermore, the detection module 405 includes a voltage sensor, a current sensor and a temperature sensor for real-time monitoring of key parameters such as output voltage, current, and temperature.

[0040] Furthermore, the voltage transformation module 403 is used to realize multi-channel and multi-level voltage output;

[0041] The inverter module 404 includes an AC inverter module and a DC inverter module; it is used to convert DC power into AC power or to convert AC power into DC power.

[0042] Furthermore, the switch control module 407 has an overload protection function, and when an abnormality is detected, it can automatically cut off the power output to ensure safe use.

[0043] It should be noted that in the inspection and maintenance of power system equipment, it is often necessary to use power supplies of different voltage levels and types on site. The traditional approach is to carry multiple power supply devices, which not only increases the burden but also reduces work efficiency. This embodiment provides a multi-level voltage safety external power device to solve these problems and improve work efficiency and safety. The power supply unit 100 uses a large-capacity lithium battery to provide a stable power supply. The indicator light 200 is set on the top side of the power supply unit 100. Displays the working status of the power supply unit, including power on, off, charging status and fault status. The box body 401 is a rectangular high-strength metal that is resistant to high temperature and impact. The power module 402 has a large-capacity lithium battery with a capacity of 20Ah and a voltage of 24V. Provides main power supply. The transformer module 403 realizes multi-channel and multi-level voltage output, supporting multiple voltage levels such as 12V, 24V, and 36V. The inverter module 404 includes an AC inverter module and a DC inverter module, which are respectively used to convert DC power into AC power or convert AC power into DC power. The detection module 405 includes a voltage sensor, a current sensor and a temperature sensor. It monitors key parameters such as output voltage, current, and temperature in real time. The display screen module 406 is an LED display screen. It displays the data obtained by the detection module, including voltage, current, temperature, etc. The switch control module 407 has an overload protection function. When an abnormality is detected, the power output is automatically cut off to ensure safe use.

[0044] Working principle: Plug the power cord of the power supply unit 100 into the charging port of the main unit 400 to ensure a firm connection. The indicator light 200 of the power supply unit 100 lights up, indicating that the power supply has been successfully connected. Press the power switch on the switch control module 407 to start the device. The display module 406 displays the current power status, including parameters such as voltage, current and temperature. Select the required output voltage level such as 12V, 24V, 36V through the adjustment knob on the transformer module 403. The display module 406 displays the currently set output voltage. Connect the device to be powered to the panel 302 of the external power unit 300 through a suitable interface. The fixing component 303 ensures the stability and safety of the connection. The detection module 405 monitors the output voltage, current, temperature and other parameters in real time and displays them through the display module 406. The user can check the power status at any time to ensure that the device is running under optimal conditions. When abnormal conditions such as overload, short circuit, etc. are detected, the switch control module 407 automatically cuts off the power output to ensure the safety of equipment and personnel. In abnormal situations, the display screen module 406 displays a warning message accompanied by an audible alarm.

[0045] In summary, the multi-level voltage safety external power device of the present invention not only solves the problems of inconvenience in carrying and difficulty in multi-channel output of traditional power supply equipment, but also provides real-time monitoring and safety protection functions, and is suitable for the detection and maintenance of various power system equipment.

[0046] Example 2

[0047] Reference Figure 1 to Figure 4 , which is the second embodiment of the present invention, and is different from the first embodiment in that: it also includes an external box 301 including a jack 301a penetrating through the end surface thereof, movable grooves 301b arranged on both sides thereof, and a connecting groove 301c arranged on the end surface thereof.

[0048] Furthermore, the fixing assembly 303 includes a first limiting rod 303 a hingedly disposed in one movable groove 301 b thereof, a second limiting rod 303 b disposed inside the other movable groove 301 b , and a plurality of sets of elastic members 303 c disposed inside the external box 301 .

[0049] Furthermore, a connecting belt 500 is sleeved on the first limiting rod 303a and the second limiting rod 303b, and two ends of the connecting belt 400 are cross-sleeved on the first limiting rod 303a and the second limiting rod 303b.

[0050] Furthermore, the first limiting rod 303a includes a column 303a-1 disposed at its end, and a clamping ring 303a-2 disposed at one side of the column 303a-1;

[0051] The second limiting rod 303b has the same structure as the first limiting rod 303a, and the second limiting rod 303b further includes a driving member 303b-1 disposed at an end thereof.

[0052] It should be noted that the external box 301 can be movably snap-connected to the inner side of the power supply unit 100. The port of the power supply unit 100 is designed as a rectangular snap-connection slot that is recessed inward, and a metal wiring rod exposed to the outside is provided in the snap-connection slot to facilitate electrical connection with the external power unit 300. Specifically, the jack 301a and the metal wiring rod in the snap-connection slot of the power supply unit 100 are plug-in connected, and a copper column is provided on the inner side of the jack 301a, one end of the copper column is electrically connected to the metal wiring rod, and the other end is connected to the external device. By adding the external box 301, the external device that was originally directly connected to the power supply unit 100 can be indirectly connected to the power supply unit 100, ensuring the overall safety of the circuit.

[0053] Preferably, both sides of the external box 301 are provided with movable grooves 301b, and the bottom of the movable grooves 301b is provided with a connecting groove 301c. A first limiting rod 303a is hinged in one of the movable grooves 301b, and a second limiting rod 303b is hinged in the other movable groove 301b. The first limiting rod 303a and the second limiting rod 303b can be rotatably clamped on the inner wall of the clamping groove of the power supply unit 100, thereby achieving a fixing effect on the external box 301. When the external box 301 needs to be disassembled, the fixation can be released by rotating the first limiting rod 303a and the second limiting rod 303b in the opposite direction, which is convenient and quick.

[0054] In addition, two sets of elastic members 303c are hinged on the inner back of the external box 301, one end of the elastic member 303c is limited on the back of the external box 301, and the other end is against the inner wall of the clamping groove of the power supply unit 100. When the external box 301 is installed or removed by rotating the first limit rod 303a and the second limit rod 303b, the elastic member 303c will be compressed. Once the limit is released, the elastic member 303c will quickly release the potential energy and pop out the external box 301, thereby realizing the rapid disconnection of the jack 301a and the metal wiring rod of the power supply unit 100, ensuring power-off safety.

[0055] Preferably, the elastic member 303c adopts a spring design and has good elasticity and durability. A post 303a-1 is provided at the end of the first limiting rod 303a, and a clamping ring 303a-2 is provided on one side of the post 303a-1. The post 303a-1 is connected to the bottom of the first limiting rod 303a in an eccentric position to ensure that the post 303a-1 can perform eccentric movement when the first limiting rod 303a rotates axially. In this way, after rotating a certain angle, the end face of the post 303a-1 can abut against the inner walls on both sides of the clamping groove of the power supply unit 100 to achieve fixation; and after rotating a certain angle, the end face of the post 303a-1 can be separated from the inner walls on both sides of the clamping groove, so that the elastic member 303c releases potential energy, pops out the external box 301, and achieves disconnection.

[0056] The structure of the second limiting rod 303b is similar to that of the first limiting rod 303a, except that a driving member 303b-1 is further provided at the end of the second limiting rod 303b. The driving member 303b-1 can drive the second limiting rod 303b to rotate. A connecting groove 301c is further provided on the inner side of the external box 301, and the connecting groove 301c is used to limit the clamping ring 303a-2 of the first limiting rod 303a and the second limiting rod 303b. A connecting belt 500 is sleeved on the outer side of the ring of the clamping ring 303a-2, and the two ends of the connecting belt 500 are cross-sleeved on the first limiting rod 303a and the second limiting rod 303b, so that the two can achieve movement in opposite directions when performing circular motion, ensuring the stability of the fixing and disassembly process.

[0057] Preferably, the driving member 303b-1 is designed with a small motor, and is internally equipped with a temperature sensor and a self-contained power supply. When the temperature sensor detects an abnormal temperature, the driving member 303b-1 will be automatically started to rotate half a circle. This rotational action will cause the pillar 303a-1 of the second limiting rod 303b, which was originally clamped on the inner walls on both sides of the clamping groove of the power supply unit 100, to rotate to the inside of the movable groove 301b, and at the same time, the first limiting rod 303a on the other side will be driven to rotate relatively through the connecting belt 500, so that the pillar 303a-1 of the first limiting rod 303a on this side will be disengaged from the clamping action. Finally, the elastic member 303c will quickly eject the external box 301 to achieve rapid power off and avoid dangers caused by improper circuit connection.

[0058] In summary, the present invention realizes the indirect connection of external devices and ensures the overall safety of the circuit by adding an external box 301 and its fixing assembly. The jack 301a of the external box 301 and the metal connecting rod of the power supply unit 100 are plug-in connected to ensure the stability and reliability of the electrical connection. The first limit rod 303a and the second limit rod 303b are fixed and disassembled by rotation, which is simple and quick to operate. The inner elastic member 303c can quickly release potential energy when the limit is released, and the external box 301 is ejected to achieve rapid power off and improve safety. The drive member 303b-1 automatically starts when the temperature is abnormal, further enhancing the safety protection function of the system and significantly improving the safety and reliability of the external electrical mechanism.

[0059] Example 3

[0060] Reference Figure 5 , which is the third embodiment of the present invention, and which is different from the first two embodiments in that: a multi-level voltage safety external power device method is also provided, including installing an external power unit to a power supply unit, and achieving a stable connection through a fixing component;

[0061] Use the detection module to monitor key parameters such as voltage, current and temperature of the power supply output in real time;

[0062] When an abnormal situation is detected, the switch control module automatically cuts off the power output to ensure safe use;

[0063] The display module displays monitoring data, including voltage, current, temperature and other information, making it convenient for users to monitor the power status;

[0064] When the ambient temperature is abnormal, the driving part automatically starts, the fixation is released by rotating the limit rod, and the external box is ejected by the elastic part to achieve rapid power off.

[0065] It should be noted that the external power unit 300 is installed on the power supply unit 100 through the external box 301, and the jack 301a of the external box 301 is connected to the metal wiring rod of the power supply unit 100 by plug-in connection, which ensures the stability and reliability of the electrical connection. The first limit rod 303a and the second limit rod 303b are hinged in the movable grooves 301b on both sides of the external box 301, respectively. The external box 301 can be fixed and disassembled by rotating the two limit rods, which is easy and quick to operate. The detection module integrates voltage sensors, current sensors and temperature sensors, and can monitor key parameters such as voltage, current and temperature of the power supply output in real time. The data of these sensors are analyzed by the built-in microcontroller to ensure that the system is always in the best operating state.

[0066] When an abnormal situation is detected, such as overvoltage, overcurrent or abnormal temperature, the switch control module will automatically cut off the power output to prevent equipment damage and personal injury. This automatic protection function greatly improves the safety of the system.

[0067] The display screen module 406 adopts an LED display structure, which can intuitively display the voltage, current, temperature and other information obtained by the detection module, so that the user can monitor the power supply status in real time. The user can timely understand the working status of the power supply through the display screen and take necessary measures.

[0068] When the ambient temperature is abnormal, the driving member 303b-1 will automatically start and release the fixation by rotating the second limit rod 303b. At the same time, the first limit rod 303a is driven to rotate relatively through the connecting belt 500 to disengage the clamping action. At this time, the inner elastic member 303c quickly releases potential energy and ejects the external box 301, realizing rapid power off and avoiding dangers caused by improper circuit connection.

[0069] In summary, the multi-level voltage safety external power device of the present invention ensures safety and reliability in various working environments by integrating multiple functional modules and intelligent control systems, and significantly improves the efficiency and safety of power system detection and maintenance work.

[0070] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A multi-level voltage safety external power device, characterized in that: It comprises at least one set of power supply units (100), and an indicator light (200) arranged on the top side of the power supply unit (100); An external power unit (300) comprises an external box (301), a panel (302) arranged on one side of the external box (301), a fixing assembly (303) arranged on both sides of the external box (301), and a positioning member (304) arranged on the outside of the panel (302); The external power unit (300) is used for external power protection of the power supply unit (100).

2. The multi-level voltage safety external power device according to claim 1, characterized in that: It also includes a main unit (400), which includes a box body (401), a power module (402), a transformer module (403), an inverter module (404), a detection module (405), a display screen module (406), and a switch control module (407).

3. The multi-level voltage safety external power device as claimed in claim 2, characterized in that: The detection module (405) comprises a voltage sensor, a current sensor and a temperature sensor, and is used to monitor key parameters such as output voltage, current, temperature, etc. in real time.

4. The multi-level voltage safety external power device as claimed in claim 3, characterized in that: The voltage transformation module (403) is used to realize multi-channel and multi-level voltage output; The inverter module (404) comprises an AC inverter module and a DC inverter module; it is used to convert DC power into AC power or to convert AC power into DC power.

5. The multi-level voltage safety external power device as claimed in claim 4, characterized in that: The switch control module (407) has an overload protection function and can automatically cut off the power output when an abnormality is detected, thereby ensuring safe use.

6. The multi-level voltage safety external power device as claimed in claim 5, characterized in that: The external connection box (301) comprises a plug hole (301a) penetratingly arranged on its end surface, movable grooves (301b) arranged on both sides thereof, and a connecting groove (301c) arranged on its end surface.

7. The multi-level voltage safety external power device according to claim 6, characterized in that: The fixing assembly (303) comprises a first limiting rod (303a) hingedly arranged in one of the movable grooves (301b), a second limiting rod (303b) arranged inside the other movable groove (301b), and a plurality of groups of elastic members (303c) arranged inside the external box (301).

8. The multi-level voltage safety external power device as claimed in claim 7, characterized in that: A connecting belt (500) is sleeved on the first limiting rod (303a) and the second limiting rod (303b), and two ends of the connecting belt (400) are cross-sleeved on the first limiting rod (303a) and the second limiting rod (303b).

9. The multi-level voltage safety external power device as claimed in claim 8, characterized in that: The first limiting rod (303a) comprises a column (303a-1) arranged at an end thereof, and a clamping ring (303a-2) arranged at one side of the column (303a-1); The second limiting rod (303b) has the same structure as the first limiting rod (303a), and the second limiting rod (303b) further comprises a driving member (303b-1) arranged at an end thereof.

10. A multi-level voltage safe external power connection method, characterized in that: The method comprises the multi-level voltage safety external power connection device as described in any one of claims 1 to 9, and the following steps: Install the external power unit to the power supply unit and achieve a secure connection through the fixing components; Use the detection module to monitor key parameters such as voltage, current and temperature of the power supply output in real time; When an abnormal situation is detected, the switch control module automatically cuts off the power output to ensure safe use; The display module displays monitoring data, including voltage, current, temperature and other information, making it convenient for users to monitor the power status; When the ambient temperature is abnormal, the driving part automatically starts, the fixation is released by rotating the limit rod, and the external box is ejected by the elastic part to achieve rapid power off.

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