CN107147067B - A kind of power cable deicer - Google Patents

Abstract

The invention belongs to the technical field of electric power deicing equipment, and provides a power supply cable deicing device, which includes a deicing mechanism, a filling mechanism, a heating mechanism and a supporting mechanism. The deicing mechanism includes several deicing broom bundles and a fixed ring , a number of support rods, a first hasp lock and a surrounding ring, the fixed ring is provided with a number of fixed threaded holes, a number of ring arrays of the fixed threaded holes are arranged on the outside of the fixed ring, a number of the deicing broom bundles A fixed sleeve is provided, and the outer wall of the deicing broom bundle is provided with the fixed sleeve; the filling mechanism includes a filling layer, a wrapping layer and a second hasp lock. The power supply cable deicing device provided by the present invention has a good deicing effect, does not damage the power supply cables, and at the same time has relatively low cost, and can meet the deicing requirements of power supply cables of different specifications.

Description

A power supply cable deicing device

technical field

The invention relates to the technical field of electric power deicing equipment, in particular to a power supply cable deicing device.

Background technique

In the power industry, cables (wires and cables) are one of the essential power transmission equipment. In winter, due to the cold weather, the power supply cables will have the following problems: When a large number of ice cubes accumulate on the cables It will further increase the self-weight of the cable, and over time it will cause the cable to break. When the cable breaks, it will cause the cable to contact the ground, which will add a certain burden to the utility pole. When more ice cubes gather After reaching the cable, there will be a danger of the pole being tilted and broken, which will further cause devastating disasters to pedestrians and nearby residential buildings.

At present, when the deicer performs deicing, it is easy to cause damage to the cable, and at the same time, the structure is complicated, the cost is relatively high, the operation is troublesome, and the deicing efficiency is not high.

Contents of the invention

Aiming at the defects in the prior art, the present invention provides a power supply cable deicing device, which can deicing by heating, without damaging the power supply cable, the deicing effect is good, and the cost is relatively low, which can meet the Deicing requirements for power cables of different specifications.

To achieve the above object, the present invention adopts the following technical solutions:

A power supply cable deicing device, the power supply cable deicing device includes a deicing mechanism, a filling mechanism, a warming mechanism and a supporting mechanism, and the deicing mechanism, the filling mechanism, and the warming mechanism are sequentially arranged from the inside to the outside Surrounding arrangement, the support mechanism is arranged outside the heating mechanism;

The deicing mechanism includes a number of deicing broom bundles, a fixed ring, a number of support rods, a first hasp lock and a surrounding ring. The fixed ring is provided with a number of fixed threaded holes, and the ring array of several fixed threaded holes is arranged on the On the outside of the fixed ring, a plurality of support rods are arranged in an annular array between the fixed ring and the surrounding ring, and a plurality of the deicing broom bundles are provided with fixing sleeves, and the outer wall of the deicing broom bundle is provided with With said fixing sleeve;

The filling mechanism includes a filling layer, a wrapping layer and a second hasp lock, the filling layer is wrapped and arranged on the outer wall of the surrounding ring, and the outer wall of the filling layer is provided with the wrapping layer;

The heating mechanism includes several electric heaters, a power supply, a switch and a heating cylinder, the heating cylinder is wrapped and arranged on the outer wall of the wrapping layer, the electric heater, the power supply and the switch are connected, so The heating cylinder is provided with two semicircular heating cylinder components, and both ends of the two semicircular heating cylinder components are detachably connected;

The support mechanism includes a fixed block, a telescopic rod, a fixed bolt and a fixed rod, the fixed block is arranged outside the heating cylinder, one end of the fixed rod is hollow inside, and the end of the fixed bolt passes through the After the outer wall of the fixed rod is in contact with the outer wall of the telescopic rod, one end of the telescopic rod is detachably connected to the upper part of the fixed block, and the other end of the telescopic rod is sleeved inside the fixed rod.

As an improved technical solution, the fixed ring is provided with two semicircular fixed ring components, one side of the two semicircular fixed ring components is hinged, and the other side of the two semicircular fixed ring components is Detachable connection.

As an improved technical solution, external threads are provided on the outer wall of the fixed sleeve, and the external threads provided on the fixed sleeve are matched with the fixed threaded holes;

As an improved technical solution, the surrounding ring is provided with several through holes, and the annular array of through holes is arranged on the inner wall of the surrounding ring;

The surrounding ring is provided by two semicircular surrounding ring members, one side of the two semicircular surrounding ring members is hinged, and the other side of the two semicircular surrounding ring members is provided with a first hasp lock.

As an improved technical solution, one end of the first hasp lock is connected to one side of the semicircular circle member, and the other end of the first hasp lock is connected to the other semicircular circle member. side connection.

As an improved technical solution, the inner wall of the filling layer is provided with notches, and the wrapping layer includes a first semicircular wrapping layer member and a second semicircular wrapping layer member;

The contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are hinged, and the other contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are provided with The second hasp lock.

As an improved technical solution, the electric heater adopts a far-infrared radiating electric heater, the power supply adopts a rechargeable power supply component, and the power supply is provided with a power plug, and the power plug matches the socket. The above switch is set to FM switch.

As an improved technical solution, the power supply includes a charging circuit, a rechargeable battery, a charging and discharging control switch and a DC-DC circuit.

As an improved technical solution, the charging circuit includes a first main control chip, the first main control chip is provided with pin 1, pin 2, pin 3, pin 4 and pin 5, pin 4 and pin The power supply input terminal is connected, pin 2 and pin 5 are grounded, pin 1 is connected to the ground after the first LED light in series, pin 3 is connected to the positive terminal of the rechargeable battery, and a second A current node, a charging and discharging control switch is provided on the line drawn from the first current node, the other end of the charging and discharging control switch is connected to a DC-DC circuit, the DC-DC circuit includes a second main control chip, and the second main control chip includes a tube Pin 1, pin 2, pin 3, pin 4 and pin 5, pin 5 is connected to the other end of the charge and discharge control switch, and the circuit between the charge and discharge control switch and pin 5 is provided with a second current Node, the line drawn from the second current node is connected to the first crystal diode after the inductor is connected in series, the third current node is set between the inductor and the first crystal diode, the line drawn from the third current node is connected to pin 1, the first crystal The other end of the diode is connected with a second crystal diode, a fourth current node is provided on the line between the second crystal diode and the first crystal diode, and a first resistor and a capacitor connected in parallel are provided on the line drawn from the fourth current node , the other end of the first resistor is connected to the pin 3 of the second main control chip, the other end of the capacitor is connected to the second resistor in series and then grounded, the second crystal diode is connected to the output end of the power supply, and the second crystal diode is connected to the output end of the power supply. There is a fifth current node, and the line drawn from the fifth current node is connected to the second LED lamp and grounded.

Due to adopting the above technical scheme, the present invention has the following beneficial effects:

The present invention provides a deicing device for a power supply cable, comprising: a deicing mechanism, a filling mechanism, a heating mechanism and a supporting mechanism, the deicing mechanism, the filling mechanism and the heating mechanism are arranged in sequence from the inside to the outside, and the The supporting mechanism is arranged outside the heating mechanism;

The deicing mechanism includes a number of deicing broom bundles, a fixed ring, a number of support rods, a first hasp lock and a surrounding ring. The fixed ring is provided with a number of fixed threaded holes, and the ring array of several fixed threaded holes is arranged on the On the outside of the fixed ring, a plurality of support rods are arranged in an annular array between the fixed ring and the surrounding ring, and a plurality of the deicing broom bundles are provided with fixing sleeves, and the outer wall of the deicing broom bundle is provided with With said fixing sleeve;

The filling mechanism includes a filling layer, a wrapping layer and a second hasp lock, the filling layer is wrapped and arranged on the outer wall of the surrounding ring, and the outer wall of the filling layer is provided with the wrapping layer;

The fixed ring is provided with two semicircular fixed ring components, one side of the two semicircular fixed ring components is hinged, and the other side of the two semicircular fixed ring components is a detachable connection, and the fixed sleeve The outer wall of the outer wall is provided with external threads, and the external threads provided on the fixed sleeve are matched with the fixed threaded holes;

The surrounding ring is provided with a number of through holes, and the annular array of through holes is arranged on the inner wall of the surrounding ring; the surrounding ring is provided by two semicircular surrounding ring members, and the two semicircular surrounding ring members One side is hinged, and the other side of the two semicircular ring members is provided with a first hasp lock;

One end of the first hasp lock is connected to one side of the semicircular circle member, and one end of the first hasp lock is connected to one side of the semicircular circle member;

Based on the above structure, the deicing mechanism cleans through the deicing broom bundle to prevent damage to the power supply cable, and at the same time, by adjusting the position of the deicing broom bundle, the deicing mechanism can meet cables of different specifications Deicing needs.

In the present invention, the inner wall of the filling layer is provided with notches, and the wrapping layer includes a first semicircular wrapping layer member and a second semicircular wrapping layer member;

The contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are hinged, and the other contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are provided with The second hasp lock, the two ends of the second hasp lock are respectively arranged on the contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member;

Based on the above structure, the filling layer absorbs the water melted from the ice in the outer wall of the electric wire to prevent leakage to the outside. At the same time, the second hasp lock is easy to operate and has good practicability.

In the present invention, the electric heater adopts a far-infrared radiating electric heater component, the power supply adopts a rechargeable power supply component, and the power supply is provided with a power plug, and the power plug matches the socket, and the switch is set is the frequency modulation switch;

Based on the above structure, the rechargeable power supply can be used continuously, which improves the service life of the present invention. At the same time, the electric heater has a good heating effect and high efficiency, and improves the speed of deicing.

To sum up, the present invention provides a deicing device for power supply cables. The deicing by means of the heating mechanism will not damage the power supply cables, and the deicing effect is good. At the same time, the deicing mechanism can satisfy different Specifications of the power supply cable deicing requirements, low cost.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is a schematic structural view of a power supply cable deicing device provided by the present invention;

Fig. 2 is a schematic structural view of the deicing mechanism provided by the present invention;

Fig. 3 is the structural representation of the filling mechanism provided by the present invention;

Fig. 4 is the structural representation of the heating mechanism provided by the present invention;

Fig. 5 is a structural schematic diagram of a support mechanism provided by the present invention;

Fig. 6 is the schematic circuit diagram of the power supply provided by the present invention;

Among them, 1. Deicing mechanism, 11. Deicing broom bundle, 12. Fixed ring, 121. Fixed threaded hole, 13. Support rod, 14. First hasp lock, 15. Surrounding ring, 151. Through hole, 16 , fixed sleeve, 2, filling mechanism, 21, filling layer, 211, notch, 22, wrapping layer, 23, second hasp lock, 3, heating mechanism, 31, electric heater, 32, power supply, 33, Switch, 34, heating cylinder, 4, support mechanism, 41, fixed block, 42, telescopic rod, 43, fixed bolt, 4, fixed rod, 5, second LED lamp, 6, charging circuit, 61, first main Control chip, 62, first LED light, 7, rechargeable battery, 71, first current node, 8, charge and discharge control switch, 9, DC-DC circuit, 91, second main control chip, 92, second current node , 93, first crystal diode, 94, third current node, 95, second crystal diode, 96, fourth current node, 97, first resistor, 98, capacitor, 99, second resistor, 100, fifth current node.

Detailed ways

The technical solutions of the present invention will be described in detail below in conjunction with specific embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

As shown in Figure 1-2, the present invention provides a power supply cable deicing device including a deicing mechanism 1, a filling mechanism 2, a heating mechanism 3 and a supporting mechanism 4, the deicing mechanism 1, filling mechanism 2, heating The mechanism 3 is sequentially arranged around from the inside to the outside, and the support mechanism 4 is arranged outside the heating mechanism 3;

The deicing mechanism 1 includes some deicing broom bundles 11, a fixed ring 12, some support rods 13, a first hasp lock 14 and a surrounding ring 15. The fixed ring 12 is provided with some fixed threaded holes 121, and some fixed threaded holes 121 are annular The array is arranged on the outside of the fixed ring 12, and a number of support rods 13 are arranged in an annular array between the fixed ring 12 and the surrounding ring 15. Several deicing broom bundles 11 are provided with fixed sleeves 16, and the outer wall of the deicing broom bundle 11 is provided with fixed sleeves. set of 16;

As shown in Figure 3, the filling mechanism 2 includes a filling layer 21, a wrapping layer 22 and a second hasp lock 23, the filling layer 21 is wrapped and arranged on the outer wall of the surrounding ring 15, and the outer wall of the filling layer 21 is provided with a wrapping layer 22;

The fixed ring 12 is provided with two semicircular fixed ring components, one side of the two semicircular fixed ring components is hinged, and the other side of the two semicircular fixed ring components is a detachable connection;

The outer wall of the fixed sleeve 16 is provided with external threads, and the external threads provided on the fixed sleeve 16 are matched with the fixed threaded holes 121;

The surrounding ring 15 is provided with a plurality of through holes 151, and the through holes 151 are arranged in an annular array on the inner wall of the surrounding ring 15;

The surrounding ring 15 is provided by two semicircular surrounding ring members, one side of the two semicircular surrounding ring members is hinged, and the other side of the two semicircular surrounding ring members is provided with a first hasp lock 14 .

One end of the first hasp lock 14 is connected to one side of the semicircular ring member, the other end of the first hasp lock 14 is connected to one side of another semicircular ring member, and the inner wall of the filling layer 21 is provided with a notch 211. The wrapping layer 22 includes a first semicircular wrapping layer component and a second semicircular wrapping layer component;

The contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are hinged, and the other contact end of the first semicircular wrapping layer member and the second semicircular wrapping layer member is provided with a second hasp lock 23. The two ends of the two hasp locks 23 are respectively arranged on the contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member;

As shown in Figure 4, the heating mechanism 3 heating mechanism includes several electric heaters 31, a power supply 32, a switch 33 and a heating cylinder 34, the heating cylinder 34 is wrapped and arranged on the outer wall of the wrapping layer 22, the electric heater 31, the power supply 32 is connected to the switch 33, and the heating cylinder 34 is provided with two semicircular heating cylinder components, and both ends of the two semicircular heating cylinder components are detachably connected;

In the above embodiment, when deicing is required, the fixed ring 12 wraps the hinged side of the two semicircular fixed ring components around the power supply cable, and the other side of the two semicircular fixed ring components is connected by bolts. The fixed ring 12 After the connection, the fixed ring 12 is provided with a fixed threaded hole 121, and the fixed sleeve 16 can be adjusted up and down until the ice-breaking contact between the deicing broom bundle 11 and the power supply cable is adjusted;

After the deicing broom bundle 11 is adjusted up and down, the surrounding circle 15 is fixedly connected by the first hasp lock 14, the filling layer 21 wraps the surrounding circle 15 through the notch 211, and the wrapping layer 22 locks the filling layer 21 through the second hasp lock 23. tight;

The heating mechanism 3 is arranged on the outside of the wrapping layer 22, and the switch on the heating mechanism 3 is turned on, and the heating mechanism 3 starts to work. The through hole 151 flows into the filling layer 21 for storage, and then operates sequentially along the length direction of the power supply cable to complete the deicing. After the deicing is completed, close the heating mechanism 3 to remove the deicer.

In the above embodiment, the filling layer 21 can be a sponge, which is a porous material with good water absorption and can be used for cleaning articles. Commonly used sponges are made of wood cellulose fibers or foamed plastic polymers , there are also natural sponges made from spongy animals, most of which are used for body cleaning or painting;

There are also three types of synthetic sponges made of other materials, namely low-density polyether (non-absorbent sponge), polyvinyl alcohol (high water-absorbent material, no obvious pores) and polyester; Shock absorption, flame retardant, anti-static, good air permeability and other characteristics, so it is involved in various industries, including the automobile industry, battery industry, cosmetics industry, bust underwear manufacturing and high-end furniture manufacturing.

In this embodiment, the electric heater 31 adopts a far-infrared radiation electric heater, and the power supply 32 adopts a rechargeable power supply component. The power supply 32 is provided with a power plug, and the power plug matches the socket. The above switch is set as a frequency modulation switch;

The electric heater 31 adopts a far-infrared radiating electric heater. The heat transfer form of infrared rays is radiation heat transfer, and energy is transferred by electromagnetic waves. When the far-infrared rays irradiate the object to be heated, part of the rays are reflected back and part of them are penetrated. In the past; when the emitted far-infrared wavelength is consistent with the absorption wavelength of the heated object, the heated object absorbs far-infrared rays. At this time, the molecules and atoms inside the object "resonate", resulting in strong vibration and rotation, and vibration and rotation The temperature of the object is raised to achieve the purpose of heating.

As shown in Figure 5, in this embodiment, the support mechanism 4 includes a fixed block 41, a telescopic rod 42, a fixed bolt 43 and a fixed rod 44, the fixed block 41 is arranged outside the heating cylinder 34, and the fixed One end of the rod 44 is hollow inside, the heating cylinder 34 is provided with two semicircular heating cylinder components, and both ends of the two semicircular heating cylinder components are detachably connected;

One end of the telescopic rod 42 is detachably connected to the upper part of the fixed block 41 by a bolt, and the other end of the telescopic rod 42 is sleeved inside the fixed rod 44;

One end of the telescopic rod 42 is movably arranged inside the fixed rod 44, which can meet the needs of people of different heights and has a wide range of applications. When deicing, people hold the fixed end of the fixed rod 44 for use, and stretch the The telescopic rod 42 is movable in the length direction, which is convenient for deicing, saves time and effort, has a simple structure and is easy to operate.

In the embodiment of the present invention, the above-mentioned power supply 32 includes a charging circuit 6, a rechargeable battery 7, a charging and discharging control switch 8 and a DC-DC circuit 9, wherein:

The charging circuit 6 comprises a first main control chip 61, the first main control chip 61 is provided with pin 1, pin 2, pin 3, pin 4 and pin 5, pin 4 is connected with the power supply input end, pin 2 and pin 5 are grounded, pin 1 is connected to the first LED lamp 62 in series and grounded, pin 3 is connected to the positive terminal of the rechargeable battery 7, and a first current node 71 is provided between pin 3 and the positive terminal of the rechargeable battery 7 , the line drawn from the first current node 71 is provided with a charge and discharge control switch 8, the other end of the charge and discharge control switch 8 is connected to a DC-DC circuit 9, and the DC-DC circuit 9 includes a second main control chip 91, the second main control Chip 91 includes pin 1, pin 2, pin 3, pin 4 and pin 5, pin 5 is connected to the other end of charge and discharge control switch 8, and the circuit between charge and discharge control switch 8 and pin 5 A second current node 92 is provided on the top, and the line drawn from the second current node 92 is connected to the first crystal diode 93 after the inductor is connected in series. A third current node 94 is arranged between the inductor and the first crystal diode 93, and the third current node 94 The drawn line is connected to the pin 1, the other end of the first crystal diode 93 is connected with the second crystal diode 95, and the fourth current node 96 is arranged on the line between the second crystal diode 95 and the first crystal diode 93, and the second crystal diode 95 is connected to the first crystal diode 93. The line drawn from the four-current node 96 is provided with a first resistor 97 and a capacitor 98 arranged in parallel, the other end of the first resistor 97 is connected to the pin 3 of the second main control chip 91, and the other end of the capacitor 98 is connected in series with the second resistor After 99, it is grounded, and the second crystal diode 95 is connected to the output terminal of the power supply. The fifth current node 100 is arranged between the second crystal diode 95 and the output terminal of the power supply. The line drawn from the fifth current node 100 is connected to the second LED5 lamp and then grounded.

Wherein, the above-mentioned first LED light 62 is used to indicate the charging process, and the second LED light 5 is used to indicate the discharging process, which will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. All of them should be covered by the scope of the claims and description of the present invention.

Claims (9)

1. A power supply cable deicing device, characterized in that: the power supply cable deicing device includes a deicing mechanism, a filling mechanism, a heating mechanism and a supporting mechanism, and the deicing mechanism, the filling mechanism, and the heating mechanism Surrounded in turn from the inside to the outside, the support mechanism is arranged outside the heating mechanism; The deicing mechanism includes a number of deicing broom bundles, a fixed ring, a number of support rods, a first hasp lock and a surrounding ring. The fixed ring is provided with a number of fixed threaded holes, and the ring array of several fixed threaded holes is arranged on the On the outside of the fixed ring, a plurality of support rods are arranged in an annular array between the fixed ring and the surrounding ring, and a plurality of the deicing broom bundles are provided with fixing sleeves, and the outer wall of the deicing broom bundle is provided with With said fixing sleeve; The filling mechanism includes a filling layer, a wrapping layer and a second hasp lock, the filling layer is wrapped and arranged on the outer wall of the surrounding ring, and the outer wall of the filling layer is provided with the wrapping layer; The heating mechanism includes several electric heaters, a power supply, a switch and a heating cylinder, the heating cylinder is wrapped and arranged on the outer wall of the wrapping layer, the electric heater, the power supply and the switch are connected, so The heating cylinder is provided with two semicircular heating cylinder components, and both ends of the two semicircular heating cylinder components are detachably connected; The support mechanism includes a fixed block, a telescopic rod, a fixed bolt and a fixed rod, the fixed block is arranged outside the heating cylinder, one end of the fixed rod is hollow inside, and the end of the fixed bolt passes through the After the outer wall of the fixed rod is in contact with the outer wall of the telescopic rod, one end of the telescopic rod is detachably connected to the upper part of the fixed block, and the other end of the telescopic rod is sleeved inside the fixed rod. 2. A power supply cable deicing device according to claim 1, characterized in that: the fixed ring is provided with two semicircular fixed ring members, one side of the two semicircular fixed ring members is hinged, The other side of the two semicircular fixed ring components is detachably connected. 3. A power supply cable deicing device according to claim 2, characterized in that: the outer wall of the fixing sleeve is provided with external threads, and the external threads provided on the fixing sleeve match the fixing threaded holes set up. 4. A power supply cable deicing device according to claim 3, characterized in that: the surrounding ring is provided with a plurality of through holes, and the annular array of through holes is arranged on the inner wall of the surrounding ring; The surrounding ring is provided by two semicircular surrounding ring members, one side of the two semicircular surrounding ring members is hinged, and the other side of the two semicircular surrounding ring members is provided with a first hasp lock. 5. The power supply cable deicing device according to claim 4, characterized in that: one end of the first hasp lock is connected to one side of the semicircular ring member, and the first hasp lock The other end of the lock is connected to one side of the other semicircular ring member. 6. A power supply cable deicing device according to claim 1, characterized in that: the inner wall of the filling layer is provided with notches, and the wrapping layer includes a first semicircular wrapping layer member and a second semicircular wrapping layer member. Type cladding member; The contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are hinged, and the other contact ends of the first semicircular wrapping layer member and the second semicircular wrapping layer member are provided with The second hasp lock. 7. A power supply cable deicing device according to claim 1, characterized in that: the electric heater adopts a far-infrared radiation electric heater, the power supply adopts a rechargeable power supply component, and the power supply is provided with There is a power plug, the power plug matches the socket, and the switch is set as a frequency modulation switch. 8 . The power supply cable deicing device according to claim 1 , wherein the power supply comprises a charging circuit, a rechargeable battery, a charging and discharging control switch and a DC-DC circuit. 9. The power supply cable deicing device according to claim 8, wherein the charging circuit comprises a first main control chip, and the first main control chip is provided with pins 1, 2, 3, Pin 4 and pin 5, pin 4 is connected to the power input terminal, pin 2 and pin 5 are grounded, pin 1 is connected to the ground after the first LED light in series, pin 3 is connected to the positive terminal of the rechargeable battery, pin There is a first current node between 3 and the positive terminal of the rechargeable battery, a charge and discharge control switch is provided on the line leading out of the first current node, and the other end of the charge and discharge control switch is connected to a DC-DC circuit, and the DC-DC circuit includes a second Two main control chips, the second main control chip includes pin 1, pin 2, pin 3, pin 4 and pin 5, pin 5 is connected to the other end of the charge and discharge control switch, and the charge and discharge control switch is connected to the tube The circuit between pin 5 is provided with a second current node, and the line drawn from the second current node is connected to the first crystal diode after the inductor is connected in series, and a third current node is provided between the inductor and the first crystal diode, and the third current node The lead-out line is connected to pin 1, the other end of the first crystal diode is connected to the second crystal diode, a fourth current node is arranged on the line between the second crystal diode and the first crystal diode, and the fourth current node leads to There is a first resistor and a capacitor set in parallel on the line, the other end of the first resistor is connected to the pin 3 of the second main control chip, the other end of the capacitor is connected in series with the second resistor and then grounded, and the second crystal diode is connected to the output terminal of the power supply A fifth current node is provided between the second crystal diode and the output end of the power supply, and the line drawn from the fifth current node is connected to the second LED lamp and grounded.