CN113162548A

CN113162548A - Backpack type direct current power supply

Info

Publication number: CN113162548A
Application number: CN202110456122.1A
Authority: CN
Inventors: 朱尤省; 谢小军; 张瑞刚; 杨博; 康英; 吴琼; 刘增博; 郗航; 姚伟刚
Original assignee: Xian Thermal Power Research Institute Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-23

Abstract

The invention discloses a backpack type direct current power supply, wherein a coat is arranged outside a body, a cable drum is arranged on one side of the coat, two backpack belts are arranged on the back of the coat, an illuminating bracket is arranged at the end part of one backpack belt, a display is arranged on the other backpack belt, a liner is arranged inside the coat, a direct current power supply is arranged in the liner, the direct current power supply is connected with a control device, the control device is connected with the cable drum through a direct current cable, is connected with illuminating equipment on the illuminating bracket through a USB charging cable, is connected with the display through a flat cable, and is connected with a hand-held switch arranged on the back of the body through a cable. The backpack type direct-current power supply is convenient to carry, and particularly has good practicability in cold environments, water surface photovoltaics, agricultural light complementary photovoltaics, fishing light complementary photovoltaics, roof photovoltaics, mountain photovoltaics and other power stations; the protection level is high, the structure is strong, and the device has the characteristics of low failure rate, long service life and the like.

Description

Backpack type direct current power supply

Technical Field

The invention belongs to the technical field of photovoltaic power generation, and particularly relates to a backpack type direct current power supply.

Background

An Electroluminescence (EL) test is an important means for detecting the quality of a photovoltaic module cell, and the EL test is very important work in field performance detection of a photovoltaic power station. The portable photovoltaic module EL tester is key equipment for field EL testing of a photovoltaic power station, and the portable photovoltaic module EL tester consists of a direct-current stabilized voltage power supply, an infrared camera, a camera support and a power line, wherein the direct-current stabilized voltage power supply has the main function of providing electric energy for a photovoltaic module in the EL testing process and mainly consists of an energy storage battery, a voltage stabilization control circuit, a structural component and the like.

The characteristics of the existing direct current stabilized power supply in the industry comprise: (1) the portable or draw-bar box type is adopted, and due to the fact that cables are limited, when the photovoltaic power station carries out EL test on site, personnel need to carry a power supply to shoot along; (2) the direct current stabilized power supply has single function, only displays the current voltage value and has no battery management system; (3) the existing direct current cable does not have a professional storage device, the cable is dragged on the ground during movement, the operation is time-consuming and labor-consuming, and the direct current cable is very inconvenient.

The disadvantages of the prior art are as follows:

(1) inconvenient and unsafe to carry

The existing power supply is portable, because photovoltaic power stations are mostly built in areas such as wastelands, mountainous regions, deserts and lakes, the power stations occupy a wide area, the photovoltaic component is installed away from the ground or high or low, the EL tests are generally large in quantity, the test areas are scattered, the EL tests must be carried out in the evening without natural light, the power supply needs to be carried all the time during the tests, the efficiency is low, the physical consumption of personnel is large, and more potential safety hazards exist.

(2) Battery power non-display and non-battery management system

The existing power supply only has a single function of supplying electric energy, can only display current and voltage during working, and cannot monitor and display the battery state (such as residual capacity, temperature and the like). For the personnel who test EL at night, knowing the residual electric quantity of the battery is more favorable for making a working plan, and in addition, the heating state of the battery in the working process is related to the safety of the equipment, and the monitoring and displaying of the temperature of the battery can provide safety protection.

(3) In cold weather, the battery power drops sharply, and the work is difficult to be carried out

Due to the characteristics of the lithium battery, the electric quantity can be sharply reduced in a cold environment, so that EL test work is difficult to carry out, and the conventional power supply is not provided with or temporarily added with heat preservation measures due to heat dissipation consideration. At present, the lowest temperature in winter at the location of a photovoltaic power station can reach below-30 ℃, EL test work is carried out in the area, and heat preservation of a power supply is very necessary.

(4) The heat-radiating air outlet has potential safety hazard

Because the existing power supply is provided with the heat dissipation air outlet in consideration of heat dissipation, sand can enter the power supply from the air outlet in desert or a region with large wind and sand, so that equipment failure is caused, and potential safety hazards are generated; in the grassy area, the grass blades can go deep into the power supply, so that faults such as short circuit and the like can be caused; in the hay region in winter, fire accidents may be caused by hay stretching into the power supply. The invention adopts a novel heat dissipation mode, has high protection level and can solve the problem.

(5) Long cable and inconvenient storage

The cable of the existing power supply is not provided with a special containing device, and the defects of inconvenient containing, low efficiency and the like exist in the process of equipment transportation and work (due to the inconvenient carrying, the equipment is often required to be placed on the ground, the cable is lengthened to reduce the movement of the power supply, so that the cable is easily hung by weeds or brackets and the like, and the operation is very inconvenient).

(6) The illumination lamp is not arranged, so that the illumination at night is inconvenient and unreliable

The existing EL test equipment is not provided with a special illuminating lamp, and an electric torch or a head lamp is mainly adopted for EL test at night, so that the test speed is low, and the comfort level of the head lamp is poor; in addition, the electric quantity of the flashlight and the headlight is also sharply reduced in cold environment.

Disclosure of Invention

The invention aims to solve the technical problem of providing a backpack type direct current power supply which is convenient and safe to carry aiming at the defects in the prior art; configuring a battery management system, a display system and battery heat preservation measures; the cable storage device is arranged, so that the cable can be conveniently stored; the special illuminating lamp is configured and connected with a power supply system, and can continuously provide illumination.

The invention adopts the following technical scheme:

the utility model provides a knapsack formula DC power supply, body including the knapsack form, the outside of body is provided with the coat, one side of coat is provided with cable drum, the back of coat is provided with two knapsack areas, the tip of a knapsack area is provided with the illumination support, be provided with the display on another knapsack area, the inside of coat is provided with the inner bag, be provided with DC power supply in the inner bag, DC power supply is connected with controlling means, controlling means passes through DC cable and is connected with cable drum, it is connected with the lighting apparatus on the illumination support to charge the cable through USB, be connected with the display through the winding displacement, hand-held switch through cable and body back setting is connected.

Specifically, three fully-opened first zippers are arranged on the coat, and a plurality of magic tape strips for fixing the inner container are designed in the coat; a first heat dissipation port is reserved on the front surface of the coat and used for being connected with the heat dissipation fins on the front surface of the inner container, second heat dissipation ports are reserved on two sides of the coat and used for being connected with the heat dissipation fins on two sides of the inner container; two first wire outlet holes are reserved on the upper part of the coat, and the first wire outlet holes are used for enabling the USB charging cable to penetrate out of the backpack; cable drum hanging buckle holes and cable drum electricity taking interfaces are reserved on two sides of the outer garment and used for connecting the cable drums; a charging interface hole is reserved on the right side of the coat and used for being connected with a control device and charging a direct-current power supply through an external power supply; a control switch wire outlet hole is arranged on the right lower part of the back surface of the coat and is connected with the hand-held switch through the control switch wire outlet hole.

Specifically, a flat cable is arranged inside the backpack strip, and the display is connected with a direct current power supply through the flat cable; a second zipper is arranged on the outer side of the backpack strip; the backpack belt is provided with a connector through which the flat cable penetrates; the backpack belt is fixed with a display clamping seat and a buckle for fixing the lighting bracket.

Specifically, the inner container is of a cabinet type structure, a supporting plate is arranged on one side close to the back, a hole is formed in the supporting plate and used for being connected with a coat, a battery box is arranged inside the inner container, a direct-current power supply is arranged in the battery box, a box body is arranged above the battery box, and a control device is arranged in the box body.

Further, a first door plate is arranged on the front side of the battery box, and a first radiating fin is designed on the first door plate; the top of the battery box is provided with a second wire outlet hole and a third wire outlet hole which are connected with the control device; a space capable of placing heat preservation foam is arranged inside the battery box;

a second door panel is arranged on the front side of the box body; the left side and the right side of the box body are respectively provided with a second radiating fin; a charging interface for a direct-current power supply is arranged on the right side of the box body;

the inner container is provided with a direct current cable outlet hole, a lighting lamp USB charging wire outlet hole, a display power supply, a wire arranging hole and a cable outlet hole of the hand-held switch, wherein the direct current cable penetrates out of the interior of the box body through the direct current cable outlet hole;

wiring grooves are respectively arranged above and at two sides of the inner container; two sides of the bottom of the inner container are provided with direct current electricity taking interfaces, and the direct current electricity taking interfaces are connected with a current line drum; the left side and the right side of the inner container are provided with double buckles for mounting the cable drum; the USB charging cable is led out from the control device and is arranged along the supporting plate on the back; the direct current cable is led out from the control device and then connected to the direct current electricity taking interface along the wiring groove; the inner container is internally provided with a guide rail groove which is respectively connected with a second guide rail arranged on the control device and a first guide rail arranged on the direct-current power supply.

Specifically, the left side and the right side of the cable drum are both provided with double hooks, and the double hooks can be matched and connected with double buckles correspondingly arranged on the left side and the right side of the liner; the outlet end of the cable drum is connected with a direct current male and female plug, and the inlet end of the cable drum is a direct current plug.

Specifically, the illumination bracket comprises a horizontal rotating shaft, a vertical rotating shaft and a base; the horizontal rotating shaft is vertically arranged on the base and is horizontally connected with the vertical rotating shaft, and a clamping seat for mounting lighting equipment is arranged on the vertical rotating shaft;

the base comprises a lock catch and a first bolt, the lock catch can be turned over up and down after being pulled out outwards, and the first bolt is used for being connected with a buckle on the backpack strip; gears are arranged inside the horizontal rotating shaft and the vertical rotating shaft, a second bolt structure is arranged inside the gears, the second bolt comprises a bolt rod and a spring, the bolt rod and the spring are inserted inside the central shaft, the spring is arranged at the bottom, and the bolt rod is arranged at the upper part of the spring; the bolt rod is meshed with the gear, and the bolt rod presses the spring to press the bolt rod into the central shaft when the gear rotates.

Specifically, the display comprises an LED display screen, and the screen of the display screen faces to one side of the backpack strip and can be opened from top to bottom along the rotating shaft; the display is provided with a first voltage adjusting knob and a first current adjusting knob, and the first voltage adjusting knob and the first current adjusting knob are connected with the control device through flat cables.

Specifically, the direct current power supply comprises a lithium ion battery, and the lithium ion battery is arranged in a power supply shell; a first guide rail is arranged at the lower part of the power supply shell and is connected with a guide rail groove arranged in the inner container; the upper part of the power supply shell is respectively provided with a positive terminal, a negative terminal and a first communication interface, the positive terminal and the negative terminal are connected with the control device through cables, and the first communication interface is connected with the control device.

Furthermore, a second guide rail, a wiring terminal and a second communication interface are arranged at the bottom of the control device, the second guide rail is connected with the guide rail groove, the wiring terminal is connected with the positive and negative wiring terminals through a cable, the second communication interface is connected with the first communication interface through a communication flat cable, and an LED display screen, a power switch, a second voltage adjusting knob, a second current adjusting knob, a TEST button, a state indicator lamp and a charging jack are arranged on the front face of the control device; the LED display screen is used for displaying current voltage and working modes, the power switch is used for controlling the control device, the second voltage adjusting knob is used for adjusting the output voltage of the control device, the second current adjusting knob is used for adjusting the output current of the control device, the TEST button is used for resetting and testing the working state of the control device, the state indicator lamp is used for displaying the working state of the control device, and the charging jack is used for charging the lithium ion battery;

one side of the control device is provided with a standby charging port; the left side and the right side are both provided with air outlets of the cooling fans; the top of the control device is provided with a direct current wiring port, a USB interface, a display communication and power interface and a handheld switch interface, the direct current wiring port is used for connecting a direct current cable, the USB interface is used for charging lighting equipment, the display communication and power interface are connected with the display through a wire row, and the handheld switch interface is used for connecting a handheld switch.

Compared with the prior art, the invention has at least the following beneficial effects:

the invention relates to a backpack type direct current power supply, which solves the defects of the conventional portable or draw-bar box type mobile direct current stabilized power supply. The invention integrates a direct current stabilized voltage power supply into the backpack, and adds a lighting system, a battery management system and a display system; the difference of users is fully considered, and cable drums and lighting bracket buckles are arranged on the left side and the right side of the backpack; in addition, the hand-held switch is arranged on the backpack, so that the power supply is prevented from being always in a conducting state, and the backpack is safer and saves electric quantity. The portable multifunctional electric heating cooker is convenient to carry, high in safety and powerful in function, and can effectively improve the working efficiency and the environmental adaptability. Furthermore, zippers are arranged on three sides of the outer garment of the backpack, so that the inner container and the outer garment can be conveniently connected; the plurality of magic tape tapes are arranged in the backpack, so that the inner container can be firmly connected to the backpack, and the backpack feeling is better; the backpack is provided with the radiating fin connecting hole, so that the radiating fin on the inner container can extend out of the backpack coat, and the backpack coat is provided with the USB cable outlet hole, the cable drum plug hole and the charging socket hole in the Shanghai, so that the backpack coat is more suitable for being sleeved with the inner container and can be completely separated from the inner container, and the backpack coat is convenient to maintain and clean.

Furthermore, the zipper is arranged on the backpack belt, so that the backpack belt is convenient to maintain; the buckles of the illumination bracket are arranged on the backpack belts, so that the illumination bracket can be conveniently replaced and adjusted on the left backpack belt and the right backpack belt; the backpack is provided with the display and the display clamping seat, so that the work can be conveniently carried out by checking the working condition of the power supply; and the flat cable of the display is arranged in the backpack belt, so that the flat cable can be protected and the appearance is more attractive.

Furthermore, the inner container of the invention adopts a cabinet type structure, on one hand, the structural strength is enhanced, the internal electrical equipment is protected, and on the other hand, the installation of the electrical equipment is more compact and beautiful; the upper part of the inner container is provided with a supporting plate which plays a supporting role after being connected with the backpack coat, so that the backpack is more comfortable; the inner container is used for installing the battery and the controller in a sub-cabin manner, so that on one hand, mutual influence of heat is prevented, and on the other hand, the maintenance is more convenient.

Furthermore, the inner container is provided with two box doors to protect the battery and the controller; the radiating fins are arranged on the front side and the side surface of the inner container, so that the defect caused by radiating during hole opening is avoided; the air drop for installing the heat preservation bubble surface is reserved in the battery box, so that the heat preservation of the battery in a cold area is facilitated; the direct-current cable outlet hole, the USB cable outlet hole, the flat cable outlet hole and the wiring groove are reserved on the inner container, so that the current in the inner container can be conveniently connected with an external device, the opening amount is reduced, and the protection grade is improved; cable drum mounting points are arranged on the two sides of the inner container, and the cable drums are directly mounted on the inner container, so that the structural strength is improved; the guide rail groove is arranged in the inner container and adopts a C-shaped structure, so that the purpose of fixing the battery and the control device is achieved, and the control device and the battery can be conveniently installed and taken out.

Furthermore, the automatic contraction cable drum is adopted for accommodating cables, the double hooks are arranged on the two side faces of the cable drum, the double hooks play a role in being more stable after being connected with the buckles on the inner container, and the hooks arranged on the two sides of the cable drum play a role in better applicability; a plug for taking electricity is arranged on the cable drum, and the electricity is taken from a socket on the liner; a cable outlet of the cable drum is provided with a special male and female plug for the photovoltaic module, so that the cable drum can be directly connected with the module conveniently; the cable drum adopts the contraction type structure, when needs are accomodate, will pull out the automatic shrink of certain length back with the cable conductor.

Furthermore, the invention is provided with a lighting system bracket, the bracket adopts a double-shaft rotating design, and the irradiation direction can be freely adjusted in the horizontal and vertical directions; the lighting bracket is arranged on the fastener of the backpack strip through the contact pin on the base, and the design of the contact pin and the opening plays a role in stabilizing on one hand, and is more convenient to adjust on the other hand, so that the lighting bracket is suitable for people with different requirements; the inside of the lighting bracket adopts a structure that a gear is meshed with the bolt, the bolt is compressed to be contracted when rotating, and the bolt plays a role in fixing the direction when not rotating; the clamping seat of the illuminating lamp is arranged on the illuminating support, so that the illuminating lamp is convenient to mount and dismount.

Furthermore, the display is arranged on the backpack belt and consists of a display screen and a clamping seat, and the screen faces inwards after the display screen is closed, so that the function of protecting the screen is achieved; the display screen is opened from top to bottom, so that the watching habit of people is met; the display screen is provided with the voltage adjusting button and the current adjusting button, so that the function of convenient adjustment is achieved, and better use experience is achieved by combining the display screen; the display screen can display key information such as working current, voltage, temperature and the like, and provide more system information for testing personnel.

Furthermore, the lithium ion battery shell is arranged, the lithium ion battery is arranged in the shell, and the cable wiring port and the thank you socket are reserved on the shell, so that the lithium ion battery shell has the function of protecting the battery on one hand, and has a more reasonable, attractive and safe structure on the other hand; the lower part of the shell is provided with an installation guide rail which plays a role in fixing and facilitating installation and disassembly after being connected with a guide rail groove on the inner container.

Furthermore, the invention adopts a direct current voltage stabilization control device to provide direct current for the outside and also provides a charging function for the battery; the upper part and the lower part of the control device are provided with installation guide rails which are connected with guide rail grooves on the inner container to play roles of fixing and facilitating installation and disassembly; the direct current output interface and the communication box interface are arranged at the upper part and the lower part of the control device, so that the connection and the disassembly of the cable and the cable bank are convenient; the front side of the control device is provided with a display screen, a voltage adjusting button, a cable adjusting button, a main switch and a TEST button, the display screen displays parameters such as the current working state, current and voltage, the voltage and current adjusting button is used for adjusting output voltage and current, the main switch is used for controlling the on-off of the control device, the TEST button is used for resetting and testing the control device, and the device is used as a backup of an external display screen and a hand-held switch, so that the system is more robust.

In conclusion, the backpack type direct current power supply is convenient to carry, can effectively release the hands of workers, is safer for the workers during working at night, and has higher working efficiency; the environment adaptability is stronger, and the photovoltaic power generation system has good practicability particularly in cold environments, water surface photovoltaics, agricultural light complementary photovoltaics, fishing light complementary photovoltaics, roof photovoltaics, mountain photovoltaics and other power stations; the protection level is high, the structure is strong, and the device has the characteristics of low failure rate, long service life and the like.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic representation of the garment construction of the present invention;

FIG. 3 is a schematic view of an upper opening in a garment of the present invention;

FIG. 4 is a schematic view of the relationship between the liner and the garment of the present invention;

FIG. 5 is a back view of the present invention;

FIG. 6 is a schematic view of the backpack strap of the present invention;

FIG. 7 is a schematic view of a backpack strap lighting fixture fastener of the present invention;

FIG. 8 is a schematic view of the liner structure of the present invention;

FIG. 9 is a schematic view of the upper opening of the liner of the present invention;

FIG. 10 is a schematic side view of the liner of the present invention;

fig. 11 is a schematic view of the internal structure of the liner of the present invention, wherein (a) is a top view, (b) is a relational view of the liner, the battery and the control device, (c) is a front view of the internal of the liner, and (d) is a side view of the liner after the opening;

FIG. 12 is a schematic structural diagram of a battery and a control device of the present invention, wherein (a) is a schematic structural diagram of an interface of the battery and the control device, (b) is a schematic structural diagram of a guide rail of the battery and the control device, (c) is a schematic structural diagram of a front view of the battery and the control device, and (d) is a side view of the battery and the control device;

FIG. 13 is a bottom view of the control device of the present invention;

FIG. 14 is a schematic view of a cable drum construction of the present invention;

FIG. 15 is a schematic diagram showing three sides of a cable drum according to the present invention, wherein (a) is a top view of the cable drum, (b) is a front view of the cable drum, (c) is a rear view of the cable drum, and (d) is a side view of the cable drum;

FIG. 16 is a schematic structural view of a lighting fixture according to the present invention, wherein (a) is a schematic structural view of a base of the lighting fixture, and (b) is a structural view of the whole lighting fixture;

FIG. 17 is a schematic top view of the internal structure of the lighting fixture of the present invention;

FIG. 18 is a front and right side view of a lighting fixture of the present invention, wherein (a) is a front view of the lighting fixture, (b) is a right side view of the lighting fixture, and (c) is a view of the central axis of the lighting fixture and the pin;

FIG. 19 is a schematic view of a display structure according to the present invention.

Wherein: 1. a body; 2. a garment; 21. a first heat dissipation port; 210. sticking a tape by magic; 22. a second heat dissipation port; 23. a first wire outlet hole; 24. a charging interface aperture; 25. a cable drum hanging buckling hole; 26. a cable drum power take-off interface; 27. a control switch wire outlet hole; 29. a first zipper; 3. a backpack strip; 31. an interface; 32. a second zipper; 33. a display card holder; 34. buckling; 4. an inner container; 41. a support plate; 42. a battery box; 43. a first door panel; 44. a first heat sink; 45. a second wire outlet hole; 46. a third wire outlet hole; 47. a box body; 48. a second heat sink; 49. a charging interface; 410. a second door panel; 411. a direct current electricity taking interface; 412. a direct current cable outlet hole; 413, USB outlet hole; 414. display power supply and wiring holes; 415. a cable outlet hole; 416. a wiring groove; 417. a direct current cable; 418. double buckles; 419. a guide rail groove; 5. a cable drum; 51. double hooks; 52. a direct current male and female plug; 53. a DC plug; 6. an illumination support; 61. a horizontal rotation axis; 62. a vertical rotation axis; 63. a base; 631. locking; 632. a first latch; 64. a gear; 65. a second bolt; 651. a latch rod; 652. a spring; 66.USB charging cable; 7. a display; 71. a display screen; 72. a first voltage adjustment knob; 73. a first current adjustment knob; 74. arranging wires; 8. a hand-held switch; 81. a cable; 9. a power supply housing; 91. a first guide rail; 92. positive and negative terminals; 93. a first communication interface; 10. a control device; 101. a second guide rail; 102. a binding post; 103. a second communication interface; 104, an LED display screen; 105. a power switch; 106. a second voltage adjustment knob; 107. a second current adjustment knob; a TEST button; 109. a status indicator light; 1010. a charging jack; 1011. a standby charging port; 1012. an air outlet of the cooling fan; 1013. a direct current wiring port; 1014, a USB interface; 1015. a display communication and power interface; 1016. hand-held switch interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Various structural schematics according to the disclosed embodiments of the invention are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.

Referring to fig. 1 and 5, the backpack type dc power supply of the present invention includes a backpack type body 1, on which a garment 2, a backpack strip 3, a liner 4, a cable drum 5, an illumination bracket 6, a display 7 and a hand-held switch 8 are disposed;

the size of the body 1 is consistent with that of a conventional adult backpack, the coat 2 is arranged outside the body 1, the cable drum 5 is arranged on one side of the outside of the coat 2, the hand-held switch 8 is correspondingly arranged on the other side of the outside of the coat 2, the two backpack strips 3 are symmetrically arranged on the back of the body 1, the lighting support 6 is arranged at the end part of one backpack strip 3, and the display 7 is arranged on the other backpack strip 3; the inner container 4 is arranged in the body 1, the direct-current power supply and the control device 10 are placed in the inner container 4, the direct-current power supply is connected with the control device 10, the control device 10 is connected with the display 7 through the flat cable 74, is connected with the hand-held switch 8 through the cable 81, is connected with the cable drum 5 through the direct-current cable 417, and is connected with the lighting equipment on the lighting support 6 through the USB charging cable.

Referring to fig. 1, 2, 3 and 4, the coat 2 is made of conventional woven fabric, and the seams at three positions of the coat 2 are designed by fully-opened first zippers 29, so that the liner 4 can be conveniently loaded and unloaded; a plurality of magic tape strips 210 for fixing the inner container 4 are designed in the coat 2, and the inner container 4 is fixed on the coat 2 through the magic tape strips 210;

a first heat dissipation port 21 is reserved on the front surface of the coat 2, the first heat dissipation port 21 is used for connecting two sides of a heat dissipation fin 44 on the front surface of the inner container 4, and a second heat dissipation port 22 is reserved on two sides of the heat dissipation fin 44 on the front surface of the inner container 4 respectively, and the second heat dissipation port 22 is used for connecting heat dissipation fins 48 on two sides of the inner container 4; two first wire outlet holes 23 are reserved on the upper part of the coat 2, and the first wire outlet holes 23 are used for enabling the USB cable 66 to pass through the backpack; cable drum hanging buckle holes 25 and cable drum electricity taking interfaces 26 are reserved on two sides of the coat 2 and are used for connecting the cable drums 5; a charging interface hole 24 is reserved on the right side of the coat 2, and the charging interface hole 24 is used for connecting the direct-current power supply control device 10; a control switch outlet hole 27 is reserved on the right lower part of the back surface of the coat 2 and is connected with the hand-held switch 8 through the control switch outlet hole 27.

Referring to fig. 5, 6 and 7, the backpack strap 3 is designed with a flat cable 74 inside to supply power to the display 7; the power outlet of the direct current power supply is connected with the display 7 through a flat cable 74, and an interface 31 is reserved on the backpack strip 3; the second zipper 32 is arranged on the outer side of the backpack strip 3, so that the line maintenance is facilitated; a display clamping seat 33 is fixed on the backpack strip 3; the backpack strip 3 is provided with a buckle 34 for mounting the lighting bracket 6.

Referring to fig. 4, 8, 9, 10 and 11, the inner container 4 is a cabinet structure; one side close to the back is provided with a whole supporting plate 41, and the supporting plate 41 is provided with a hole, so that the weight is reduced on one hand, and a structure connected with the coat 2 is reserved on the other hand.

A battery box 42 is arranged in the inner container 4; a lithium ion battery is arranged in the battery box 42; a first door panel 43 is installed on the front side of the battery box 42, and the first door panel 43 is used for protecting the lithium ion battery; the first door panel 43 is designed with a first heat sink 44; the top of the battery box 42 is provided with a second wire outlet 45 and a third wire outlet 46 which are connected with the control device 10; a space for adhering heat-insulating foam is reserved in the battery box 42, so that the electric quantity of the lithium ion battery in a cold environment is guaranteed. A box body 47 is arranged above the battery box 42, and the box body 47 is positioned in the middle of the inner container 4 and used for placing the control device 10; a second door panel 410 is installed on the front side of the box body 47; the left side and the right side of the box body 47 are respectively provided with a second radiating fin 48; a charging interface 49 for a lithium ion battery is provided on the right side of the case 47.

A direct current cable outlet hole 412, a lighting lamp USB charging wire outlet hole 413, a display power supply and wire arranging hole 414 and a cable outlet hole 415 of the hand-held switch 8 are formed above the inner container 4, the direct current cable outlet hole 412 is used for enabling a direct current cable 417 to penetrate out of the inside of the box body 47, the lighting lamp USB charging wire outlet hole 413 is used for enabling a USB cable 66 to penetrate out of the inside of the box body 47, the display power supply and wire arranging hole 414 is used for enabling a wire arranging 74 to penetrate out of the inside of the box body 47, and the cable outlet hole 415 of the hand-held switch 8 is used for enabling a cable 81 to penetrate out of the inside of the box body 47. Wiring grooves 416 are respectively arranged above and at two sides of the inner container 4, and a direct current cable 417 is led out from the control device 10 and connected to the direct current power taking interface 411 along the wiring grooves 416.

Two sides of the bottom of the inner container 4 are provided with direct current electricity taking interfaces 411, and the direct current electricity taking interfaces 411 are connected with the current wire drum 5 to provide direct current for the cable wire drum 5.

The left side and the right side of the inner container 4 are also provided with double buckles 418 for mounting the cable drum 5; two lighting lamp USB charging cables 66 are led out from the control device 10 and are arranged along the back supporting plate 41; the flat cable 74 is led out from the control device 10 and arranged along the back support plate 41 to the inside of the backpack strip 3.

The hand-held switch 8 is led out from the control device 10 by a cable 81 and is arranged along the side surface of the inner container 4, and is used for controlling the opening and closing of the control device 10, is pressed to be opened for the first time, is pressed to be closed again, and circulates in sequence.

A guide rail groove 419 is formed in the inner container 4, and the guide rail groove 419 is used for connecting the guide rail 101 of the control device 10 and the guide rail 91 of the rechargeable lithium ion battery.

Referring to fig. 12, the dc power supply adopts a rechargeable lithium ion battery, and the lithium ion battery is installed in the power supply housing 9; a first guide rail 91 is arranged at the lower part of the power supply shell 9, and the first guide rail 91 is connected with the guide rail groove 419; the upper part is respectively provided with a positive terminal 92 and a negative terminal 93, the positive terminal 92 and the negative terminal are connected with the control device 10 through cables, and the first communication interface 93 is connected with the control device 10 through a communication cable.

The control device 10 includes a charging circuit for charging the lithium ion battery, a voltage stabilizing circuit for stabilizing the dc output voltage, a monitoring circuit for monitoring various parameters of the system, and a battery management system for acquiring and managing the state of the lithium ion battery.

Referring to fig. 13, a second guide rail 101 is disposed at the bottom of the control device 10; the wiring terminal 102 is connected with the positive and negative wiring terminals 92 through cables, and the second communication interface 103 is connected with the communication flat cable control device 10.

The front surface of the control device 10 is provided with an LED display screen 104, a power switch 105, a second voltage adjusting knob 106, a second current adjusting knob 107, a TEST button 108, a status indicator lamp 109 and a charging jack 1010; the LED display screen 104 is used for displaying current and voltage and working mode, the power switch 105 is used for controlling the on and off of the control device 10, the second voltage adjusting knob 106 is used for adjusting the output voltage of the control device 10, the second current adjusting knob 107 is used for adjusting the output current of the control device 10, the TEST button 108 is used for resetting and testing the working state of the control device 10, the state indicator lamp 109 is used for indicating the working state of the control device 10, and the charging jack 1010 is used for charging the lithium ion battery 9.

Referring to fig. 12, a standby charging port 1011 is disposed at one side of the control device 10; the left and right sides are provided with cooling fan outlets 1012; the top of the control device 10 has a dc interface 1013, a USB interface 1014, a display communication and power interface 1015 and a hand-held switch interface 1016, the dc interface 1013 is connected to the USB cable 417, the USB interface 1014 is connected to the USB cable 66, the display communication and power interface 1015 is connected to the bus bar 74, and the hand-held switch interface 1016 is connected to the hand-held switch 8.

Referring to fig. 14 and 15, the cable drum 5 is provided with double hooks 51 on both left and right sides thereof, and the double hooks 51 can be hooked on the double buckles 418 correspondingly provided on both left and right sides of the inner container 4; the outlet end of the cable drum 5 is connected with a direct current male and female plug 52, and the inlet end is a direct current plug 53; the cable drum 5 is capable of automatically retracting the cable.

Referring to fig. 16, the illumination bracket 6 includes a horizontal rotation shaft 61, a vertical rotation shaft 62, and a base 63; the horizontal rotating shaft 61 is vertically arranged on the base 63 and horizontally connected with the vertical rotating shaft 62, and a clamping seat for mounting the lighting equipment is arranged on the vertical rotating shaft 62.

Referring to fig. 17 and 18, the base 63 includes a lock catch 631 and a first pin 632, the lock catch 631 can be turned over after being pulled out, and the first pin 632 is used for connecting with the buckle 35 on the backpack strap 3; a gear 64 is arranged inside each of the horizontal rotating shaft 61 and the vertical rotating shaft 62, a second bolt 65 knot is arranged inside each gear 64, each second bolt 65 comprises a bolt rod 651 and a spring 652, each bolt rod 651 and each spring 652 are inserted inside the central shaft 67, each spring 652 is arranged at the bottom, and each bolt rod 651 is arranged at the upper part of each spring; latch lever 65 engages gear 64, and when the gear rotates, latch lever 651 presses spring 652, causing latch lever 651 to press into central shaft 67.

Referring to fig. 19, the display 7 includes a display screen 71 of LEDs, and the display screen 71 can display information such as current, voltage, and battery status during operation; the screen of the display screen 71 faces the backpack strip 3 side and can be opened from top to bottom along the rotating shaft; the display 7 is provided with a first voltage adjusting knob 72 and a first current adjusting knob 73, and digital signals generated by rotation are provided to the control device 10 through a cable 74, so that the voltage and the current can be adjusted.

The specific working principle of the backpack type direct current power supply is as follows:

the backpack coat is used for carrying the whole set of equipment and is reasonably connected with the inner container, the inner container comprises a battery, a direct current stabilized voltage power supply, and a cable and a communication flat cable which are mutually connected, and a cable for supplying power to external equipment is led out from the interior of the direct current stabilized voltage power supply and comprises a direct current cable, a display flat cable, a lighting lamp USB charging wire and a hand-held switch power line; the two sides of the backpack are provided with hanging points of the cable drum, and the hanging points are connected with the hooks of the cable drum; the bottoms of the two sides of the backpack are provided with direct current sockets for providing direct current for the cable drums; a charging socket is arranged on the right side of the backpack to charge the battery; the hand-held switch is arranged at the lower left of the backpack and is used for controlling the on-off of the power supply.

When charging, connect the charging mouth on commercial power and knapsack right side with three hole plugs, controlling means charges for the battery automatically, and the heat that charges and produce distributes through the fin, and controlling means can the automatic shutdown charge after the charging, and the test display screen shows 100% of electric quantity.

When the EL is tested, a control power switch is turned on, a cable drum is hung on the left side or the right side of the backpack, a plug of the cable drum is connected, the position and the angle of an illuminating lamp are adjusted, the direct-current cable is pulled out, the cable drum automatically locks the cable not to retract, a male plug and a female plug of the direct-current cable are connected with a male plug and a female plug of the assembly, a display is turned on, a hand-held switch is pressed, the voltage and the current on the display are adjusted to appropriate values, the EL is tested, the hand-held switch is pressed again after the test is finished, the power supply is disconnected, and the steps are repeated in sequence; after the test is finished, the direct current cable is slightly pulled, the cable drum automatically recovers the cable, and the power supply is turned off.

In summary, the backpack dc power supply of the present invention has the following features:

(1) compared with the conventional portable or draw-bar box type direct current voltage-stabilized power supply, the portable or draw-bar box type direct current voltage-stabilized power supply is more convenient to carry, can release both hands of workers, is higher in working efficiency and is safer for the workers during working at night;

(2) the invention has higher protection grade, does not need to be placed on the ground during working, is suitable for different environments, and has higher safety and lower failure rate;

(3) the invention is designed with a battery heat preservation mode, can ensure that the electric quantity of the lithium ion battery can not be rapidly reduced in a cold environment, and has higher environmental adaptability;

(4) the invention is provided with the automatic wire receiving cable drum, the length of the cable can be freely extended and retracted according to the requirement when the backpack is operated, the cable can be received when the backpack is moved, and the left and the right of the backpack are provided with the power interface and the cable drum hanging port, so that the backpack is strong in flexibility, higher in working efficiency and safer for personnel;

(5) the invention is designed with a battery management system which can monitor the battery state, so that testers can know the residual electric quantity more visually, and the work is arranged more reasonably;

(6) the invention is provided with the display, the working current, the voltage, the battery state and other information of the power supply can be checked in real time, and the display screen is arranged at the position below the left shoulder strap, so that the checking by workers is more convenient, and the efficiency is higher;

(7) the invention is provided with the lighting lamp fixing buckle, the bracket and the lighting lamp charging interface, so that the trouble of holding a lighting tool by a person can be avoided, the lighting can be continuously supplied with power, and the left shoulder buckle and the right shoulder buckle can be freely adjusted according to requirements.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.

Claims

1. A backpack type direct current power supply is characterized by comprising a backpack-shaped body (1), a coat (2) is arranged outside the body (1), a cable drum (5) is arranged on one side of the coat (2), two backpack strips (3) are arranged on the back of the coat (2), an illuminating support (6) is arranged at the end part of one backpack strip (3), a display (7) is arranged on the other backpack strip (3), a liner (4) is arranged inside the coat (2), a direct current power supply is arranged in the liner (4) and connected with a control device (10), the control device (10) is connected with the cable drum (5) through a direct current cable (417), is connected with the lighting equipment on the lighting bracket (6) through a USB charging cable (66), is connected with a display (7) through a flat cable (74) and is connected with a hand-held switch (8) arranged on the back of the body (1) through a cable (81).

2. The backpack type direct current power supply according to claim 1, wherein three fully opened first zippers (29) are arranged on the outer garment (2), and a plurality of magic tapes (210) for fixing the inner container (4) are designed in the outer garment (2); a first heat dissipation port (21) is reserved on the front surface of the coat (2), the first heat dissipation port (21) is used for being connected with heat dissipation fins (44) on the front surface of the inner container (4), second heat dissipation ports (22) are reserved on two sides of the coat (2), and the second heat dissipation ports (22) are used for being connected with heat dissipation fins (48) on two sides of the inner container (4); two first wire outlet holes (23) are reserved at the upper part of the coat (2), and the first wire outlet holes (23) are used for enabling the USB charging cable (66) to penetrate out of the backpack; a cable drum hanging buckle hole (25) and a cable drum electricity taking interface (26) are reserved on two sides of the coat (2) and are used for connecting the cable drum (5); a charging interface hole (24) is reserved on the right side of the coat (2), the charging interface hole (24) is used for being connected with the control device (10) and charging a direct-current power supply through an external power supply; a control switch wire outlet hole (27) is reserved on the right lower part of the back surface of the coat (2) and is connected with the hand-held switch (8) through the control switch wire outlet hole (27).

3. The backpack type DC power supply according to claim 1, wherein the backpack strap (3) is provided with a flat cable (74) inside, and the display (7) is connected with the DC power supply through the flat cable (74); a second zipper (32) is arranged on the outer side of the backpack strip (3); the backpack strip (3) is provided with an interface (31) through which the flat cable (74) passes; the backpack strip (3) is fixed with a display clamping seat (33) and a buckle (34) for fixing the lighting bracket (6).

4. The backpack type direct current power supply according to claim 1, wherein the inner container (4) is a cabinet type structure, a support plate (41) is arranged on one side close to the back, a hole is formed in the support plate (41) and used for connecting the coat (2), a battery box (42) is arranged inside the inner container (4), the direct current power supply is arranged in the battery box (42), a box body (47) is arranged above the battery box (42), and the control device (10) is arranged in the box body (47).

5. The backpack direct current power supply according to claim 4, wherein a first door panel (43) is installed on the front side of the battery box (42), and a first heat sink (44) is designed on the first door panel (43); the top of the battery box (42) is provided with a second wire outlet hole (45) and a third wire outlet hole (46) which are connected with the control device (10); a space capable of placing heat preservation foam is arranged in the battery box (42);

a second door panel (410) is arranged on the front side of the box body (47); the left side and the right side of the box body (47) are respectively provided with a second radiating fin (48); a charging interface (49) for a direct-current power supply is arranged on the right side of the box body (47);

a direct current cable outlet hole (412), a lighting lamp USB charging wire outlet hole (413), a display power supply and wire arranging hole (414) and a cable outlet hole (415) of the hand-held switch (8) are formed in the inner container (4), a direct current cable (417) penetrates out of the interior of the box body (47) through the direct current cable outlet hole (412), a USB charging cable (66) penetrates out of the interior of the box body (47) through the lighting lamp USB charging wire outlet hole (413), a wire arranging (74) penetrates out of the interior of the box body (47) through the display power supply and wire arranging hole (414), and a cable (81) penetrates out of the interior of the box body (47) through the cable outlet hole (415);

wiring grooves (416) are respectively arranged above and at two sides of the inner container (4); two sides of the bottom of the inner container (4) are provided with direct current electricity-taking interfaces (411), and the direct current electricity-taking interfaces (411) are connected with the current line drum (5); the left side and the right side of the inner container (4) are provided with double buckles (418) for mounting the cable drum (5); the USB charging cable (66) is led out from the control device (10) and is arranged along the supporting plate (41) on the back; the direct current cable (417) is led out from the control device (10) and is connected to the direct current power taking interface (411) along a wiring groove (416); a guide rail groove (419) is formed in the inner container (4), and the guide rail groove (419) is connected with a second guide rail (101) arranged on the control device (10) and a first guide rail (91) arranged on the direct current power supply.

6. The backpack type direct current power supply according to claim 1, wherein double hooks (51) are arranged on the left side and the right side of the cable drum (5), and the double hooks (51) can be matched and connected with double buckles (418) correspondingly arranged on the left side and the right side of the inner container (4); the outlet end of the cable drum (5) is connected with a direct current male and female plug (52), and the inlet end is a direct current plug (53).

7. Backpack direct current power supply according to claim 1, characterized in that the lighting fixture (6) comprises a horizontal rotation axis (61), a vertical rotation axis (62) and a base (63); the horizontal rotating shaft (61) is vertically arranged on the base (63) and is horizontally connected with the vertical rotating shaft (62), and a clamping seat for mounting lighting equipment is arranged on the vertical rotating shaft (62);

the base (63) comprises a lock catch (631) and a first bolt (632), the lock catch (631) can be pulled out outwards and then turned over up and down, and the first bolt (632) is used for being connected with a buckle (35) on the backpack strap (3); gears (64) are arranged inside the horizontal rotating shaft (61) and the vertical rotating shaft (62), a second bolt (65) structure is arranged inside the gears (64), each second bolt (65) comprises a bolt rod (651) and a spring (652), the bolt rods (651) and the springs (652) are inserted inside the central shaft (67), the springs (652) are arranged at the bottom, and the bolt rods (651) are arranged at the upper parts of the springs; the latch lever (65) is engaged with the gear (64), and when the gear rotates, the latch lever (651) presses the spring (652) to press the latch lever (651) into the center shaft (67).

8. Backpack direct current power supply according to claim 1, characterized in that the display (7) comprises a display screen (71) of LEDs, the screen of the display screen (71) facing the side of the backpack strap (3) being openable from top to bottom along the rotation axis; the display (7) is provided with a first voltage adjusting knob (72) and a first current adjusting knob (73), and the first voltage adjusting knob (72) and the first current adjusting knob (73) are connected with the control device (10) through a flat cable (74).

9. The backpack direct current power supply according to claim 1, wherein the direct current power supply comprises a lithium ion battery, the lithium ion battery being housed in a power supply housing (9); a first guide rail (91) is arranged at the lower part of the power supply shell (9), and the first guide rail (91) is connected with a guide rail groove (419) arranged in the inner container (4); the upper part of the power supply shell (9) is respectively provided with a positive and negative terminal (92) and a first communication interface (93), the positive and negative terminal (92) is connected with the control device (10) through a cable, and the first communication interface (93) is connected with the control device (10).

10. The backpack type direct current power supply according to claim 9, wherein a second guide rail (101), a terminal (102) and a second communication interface (103) are arranged at the bottom of the control device (10), the second guide rail (101) is connected with a guide rail groove (419), the terminal (102) is connected with the positive and negative terminals (92) through a cable, the second communication interface (103) is connected with the first communication interface (93) through a communication cable, and an LED display screen (104), a power switch (105), a second voltage adjusting knob (106), a second current adjusting knob (107), a TEST button (108), a status indicator lamp (109) and a charging jack (1010) are arranged on the front of the control device (10); the LED display screen (104) is used for displaying current voltage and working modes, the power switch (105) is used for controlling the control device (10), the second voltage adjusting knob (106) is used for adjusting the output voltage of the control device (10), the second current adjusting knob (107) is used for adjusting the output current of the control device (10), the TEST button (108) is used for resetting and testing the working state of the control device (10), the state indicator lamp (109) is used for displaying the working state of the control device (10), and the charging jack (1010) is used for charging the lithium ion battery;

a standby charging port (1011) is arranged on one side of the control device (10); the left side and the right side are both provided with a cooling fan air outlet (1012); the top of the control device (10) is provided with a direct current wiring port (1013), a USB interface (1014), a display communication and power supply interface (1015) and a hand-held switch interface (1016), the direct current wiring port (1013) is used for connecting a direct current cable (417), the USB interface (1014) is used for charging lighting equipment, the display communication and power supply interface (1015) is connected with the display (7) through a wire row (74), and the hand-held switch interface (1016) is used for connecting a hand-held switch (8).