A 3-stage charger special for lithium ion

Abstract

The present application relates to the technical field of lithium ion charger, especially to a 3-stage special lithium ion charger, which comprises a receiving seat, a base, an annular groove, a shell, a top cover, a mounting seat, an annular protective airbag, a first extension pad, a second extension pad, a through pipe and an inflation port, the inner wall of the receiving seat is fixedly installed with the base, the top end of the base is provided with the annular groove, the inner wall of the annular groove is connected with the shell in a clamping mode, the top end of the shell is provided with the top cover, and the top end of the receiving seat is fixedly installed with the mounting seat. The gas is injected into the mounting seat through the inflation port, the gas enters the annular protective airbag through the through pipe of the mounting seat, the annular protective airbag is expanded by the input of the gas, the surface of the shell is shielded, the collision of the shell with the outside during movement is avoided, and the first extension pad and the second extension pad at the four corners of the through pipe are further expanded by the expansion of the annular protective airbag.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium ion charger, in particular to a 3-stage charger special for lithium ion. BACKGROUND

[0002] The intelligent charger is provided with high frequency power supply technology and advanced intelligent dynamic adjustment charging technology. It adopts constant current / constant voltage / small constant current intelligent three-stage charging mode, and has the characteristics of high charging efficiency, simple operation, light weight and small size. It also has multiple protection functions such as reverse connection, overload, short circuit, overheating, and delay start, soft start, power-off memory self-start function, etc. It has scientific charging capacity control technology, and the full-automatic charger can automatically shut down after the battery is fully charged, ensuring that the battery is fully charged and not undercharged, prolonging the service life of the battery. The full-automatic charger can be used for nickel-chromium, nickel-hydrogen, lead-acid, lithium ion batteries, etc. Lithium ion batteries have high energy weight ratio and energy volume ratio, no memory effect, can be repeatedly charged many times, have long service life, and the price is also getting lower and lower. The characteristics of lithium ion batteries promote the development of portable products in the direction of smaller and lighter, and the use of single lithium ion battery power products is also increasing. The lithium ion battery charger HME product is widely used in military, scientific research, resource exploration, medical instruments, ultrasonic flaw detection instruments, video cameras, digital communication, digital electronics, solar power stations, wireless walkie-talkies and personal computers, etc. Portable electronic instrument power supply field. When using lithium ion batteries, a special 3-stage charger is needed.

[0003] However, the existing lithium ion special 3-stage charger structure is not perfect, and there are still some defects:

[0004] 1. The existing lithium ion charger has a large size, and the position is generally not fixed during charging. It is not convenient to carry and carry, and it is easy to cause the delivery to expand during carrying, especially the internal circuit is more, which is easy to cause short circuit, and then affect the normal use.

[0005] 2. The lithium ion charger generally lasts for a long time during charging. The existing lithium ion charger generally relies on a single cooling fan to cool at a fixed position, so that the wind can only flow in one direction. However, the internal structure of the charger is complex, and some parts are buried in the circuit and cannot be contacted by the wind. When the temperature continues to rise, the internal single part is burned, which affects the service life of the charger. SUMMARY

[0006] The purpose of the present application is to provide a 3-stage charger special for lithium ion.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0008] The utility model provides a lithium ion special 3 -stage type charger, including receiving seat, base, annular groove, shell, top cap, mounting seat, annular protective air bag, first extension pad, second extension pad, through -going pipe, inflation port, fixed block, buffer spring, extrusion pad, snap ring, clamping groove, limiting plate, insertion strip, fixing hole, first adsorption surface, top groove, second adsorption surface, fillet, adhering paste, voltage display table, pilot lamp, through -going hole, exhaust top hole, circuit board, transformer, siren, rectifier bridge, cooling fan, connecting pipe, shunt pipe, stand pipe, U -shaped pipe and shunt hopper, the inner wall fixed mounting of receiving seat has the base, the top of base is equipped with annular groove, the inner wall of annular groove is connected with shell, the top of shell is equipped with top cap, the top of receiving seat is fixedly installed with mounting seat, the inner wall fixedly penetrates with annular protective air bag of mounting seat, the top of annular protective air bag inner wall four corners is fixedly penetrated with first extension pad, the bottom of annular protective air bag inner wall four corners is fixedly penetrated with second extension pad, the bottom of four first extension pads is fixedly penetrated with corresponding second extension pad through the two through -going pipes of symmetrical penetration, the middle of mounting seat one side is equipped with inflation port, the inner wall of inflation port is connected with sealing plug.

[0009] Preferably, the middle of the four sides of the inner wall of the annular protective air bag is symmetrically connected with two fixed blocks, one end of the plurality of fixed blocks is fixedly connected with a buffer spring, one end of the plurality of buffer springs is fixedly connected with an extrusion pad, and one end of the plurality of extrusion pads is extruded with the outer wall of the adjacent shell.

[0010] Preferably, one end of the plurality of fixed blocks is provided with a clamping groove, the other end of the outer wall of the plurality of snap rings is fixedly connected with a snap ring, and the outer wall of the plurality of snap rings is mutually clamped with the inner wall of the adjacent clamping groove.

[0011] Preferably, the top end of the outer wall of the annular protective air bag is fixedly connected with a limiting plate, the four corners of the bottom end of the limiting plate are fixedly connected with an insertion strip, the four corners of the top end of the mounting seat are provided with a fixing hole, and the outer wall of the four insertion strips is clamped and connected with the inner wall of the adjacent insertion strip.

[0012] Preferably, the top end of the limiting plate is provided with a first adsorption surface, the bottom end of the top cap is provided with a second adsorption surface, and the outer wall of the first adsorption surface is mutually adhered with the outer wall of the second adsorption surface.

[0013] Preferably, the middle of the four corners of the outer wall of the shell is provided with a fillet, the top and bottom of the outer wall of the four fillets are fixedly connected with an adhering paste, the positions of the plurality of adhering pastes are consistent with the positions of the adjacent first extension pads, and the outer wall of the plurality of adhering pastes is mutually adhered with the outer wall of the adjacent first extension pad.

[0014] Preferably, the middle of the top end of the base is fixedly installed with a circuit board, the top end of the circuit board is fixedly installed with a transformer, one side of the transformer is provided with a siren, the front of the circuit board is fixedly installed with a rectifier bridge, and the circuit board is electrically connected with the rectifier bridge.

[0015] Preferably, a through hole is formed in the middle of the back of the shell, and a heat dissipation fan is clamped and mounted on the inner wall of the through hole, and an output end of the heat dissipation fan is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly penetrated with a shunt pipe, and vertical pipes are fixedly penetrated on both sides of the bottom end of the shunt pipe.

[0016] Preferably, a U-shaped pipe is fixedly installed at the top end of the base, a plurality of shunt hoppers are symmetrically penetrated in the inner wall of the U-shaped pipe, and the bottom ends of the two vertical pipes are fixedly penetrated with the top ends of the adjacent U-shaped pipes.

[0017] The present application has at least the following advantages:

[0018] 1、The installation seat, the annular protective air bag, the first extension pad, the second extension pad and the penetrating pipe are matched, gas is injected into the installation seat through the inflation port, the gas enters the annular protective air bag through the penetration of the installation seat, the annular protective air bag is inflated by the input of the gas, the surface of the shell is shielded, the shell is prevented from colliding with the outside during movement, the annular protective air bag is further inflated to drive the first extension pad and the second extension pad at the four corners to be inflated, the first extension pad and the second extension pad are protruded after inflation, and are adhered and attached to the shell corresponding to the four corners, thereby achieving the effect of limiting and fixing the shell.

[0019] 2、The heat dissipation fan, the connecting pipe, the shunt pipe, the vertical pipe, the U-shaped pipe and the shunt hopper are matched, the heat dissipation fan generates wind power during operation, the wind power is introduced into the shunt pipe through the connecting pipe, the wind power is introduced into the U-shaped pipe through the vertical pipe, and the wind power is introduced into the surrounding of the circuit board through the plurality of shunt hoppers, so that the parts on the circuit board can be contacted with the wind power, thereby achieving the effect of uniform heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0021] Figure 1 is a schematic view of the present application;

[0022] Figure 2 is a schematic view of the partial exploded structure of the present application;

[0023] Figure 3 is a schematic view of the partial bottom structure of the present application;

[0024] Figure 4 is a schematic view of the structure of the annular protective air bag and the mounting seat in the present application;

[0025] Figure 5 is Figure 4 is a partial enlarged view of A in the figure;

[0026] Figure 6 is Figure 3 is a partial enlarged view of B in the figure;

[0027] Figure 7 is a schematic view of the top structure of the receiving seat in the present application.

[0028] In the figure: 1, receiving seat; 2, base; 3, annular groove; 4, outer shell; 5, top cover; 6, mounting seat; 7, annular protective air bag; 8, first extension pad; 9, second extension pad; 10, through pipe; 11, inflation port; 12, fixed block; 13, buffer spring; 14, extrusion pad; 15, snap ring; 16, clamping groove; 17, limiting plate; 18, insertion strip; 19, fixing hole; 20, first adsorption surface; 21, top groove; 22, second adsorption surface; 23, round corner; 24, adhesive sticker; 25, voltage display meter; 26, indicator light; 27, through hole; 28, heat dissipation top hole; 29, circuit board; 30, transformer; 31, siren; 32, rectifier bridge; 33, heat dissipation fan; 34, connecting pipe; 35, shunt pipe; 36, vertical pipe; 37, U-shaped pipe; 38, shunt hopper. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0030] Please refer to Figures 1-7The application provides a technical scheme of a lithium-ion special-purpose 3-stage charger

[0031] Embodiment one

[0032] As Figures 1-6As shown, a lithium ion special 3-stage charger, including receiving seat 1, base 2, annular groove 3, shell 4, top cover 5, mounting seat 6, annular protective air bag 7, first extension pad 8, second extension pad 9, through pipe 10, inflation port 11, fixed block 12, buffer spring 13, extrusion pad 14, clasp 15, clamping groove 16, limiting plate 17, plug 18, fixing hole 19, first adsorption surface 20, top groove 21, second adsorption surface 22, fillet 23, adhesive sticker 24, voltage display table 25, indicator light 26, through hole 27, heat exhaust top hole 28, circuit board 29, transformer 30, siren 31, rectifier bridge 32, heat dissipation fan 33, connecting pipe 34, shunt pipe 35, vertical pipe 36, U-shaped pipe 37 and shunt hopper 38, the inner wall of the receiving seat 1 is fixedly provided with the base 2, the top end of the base 2 is provided with the annular groove 3, the inner wall of the annular groove 3 is hingedly connected with the shell 4, the top end of the shell 4 is provided with the top cover 5, the top end of the receiving seat 1 is fixedly provided with the mounting seat 6, the inner wall of the mounting seat 6 is fixedly penetrated with the annular protective air bag 7, the top of the four corners of the inner wall of the annular protective air bag 7 is fixedly penetrated with the first extension pad 8, the bottom of the four corners of the inner wall of the annular protective air bag 7 is fixedly penetrated with the second extension pad 9, the bottom end of the four first extension pads 8 is fixedly penetrated with the top end of the corresponding second extension pad 9 through the two through pipes 10 symmetrically penetrating, the middle of one side of the mounting seat 6 is provided with the inflation port 11, the inner wall of the inflation port 11 is hingedly connected with the sealing plug, the middle of the four sides of the inner wall of the annular protective air bag 7 is symmetrically connected with two fixed blocks 12, one end of the plurality of fixed blocks 12 is fixedly connected with the buffer spring 13, one end of the plurality of buffer springs 13 is fixedly connected with the extrusion pad 14, one end of the plurality of extrusion pads 14 is extruded with the outer wall of the adjacent shell 4, one end of the plurality of fixed blocks 12 is provided with the clamping groove 16, the other end of the outer wall of the plurality of clasp 15 is fixedly connected with the clasp 15, the outer wall of the plurality of clasp 15 is hingedly connected with the inner wall of the adjacent clamping groove 16, the top end of the outer wall of the annular protective air bag 7 is fixedly connected with the limiting plate 17, the four corners of the bottom end of the limiting plate 17 are fixedly connected with the plug 18, the four corners of the top end of the mounting seat 6 are provided with the fixing hole 19, the outer wall of the four plugs 18 is hingedly connected with the inner wall of the adjacent plug 18, the plug 18 can be inserted into the fixing hole 19 by pressing the limiting plate 17, which can accommodate the annular protective air bag 7, so that it can be kept in the accommodation state during use, the top end of the limiting plate 17 is provided with the first adsorption surface 20, the bottom end of the top cover 5 is provided with the second adsorption surface 22, the outer wall of the first adsorption surface 20 is hingedly connected with the outer wall of the second adsorption surface 22, the middle of the four corners of the outer wall of the shell 4 is provided with the fillet 23, the top and bottom of the outer wall of the four fillets 23 are fixedly connected with the adhesive sticker 24, the positions of the plurality of adhesive stickers 24 are consistent with the positions of the adjacent first extension pad 8, the outer wall of the plurality of adhesive stickers 24 is hingedly connected with the outer wall of the adjacent first extension pad 8, the mounting seat 6, the annular protective air bag 7, the first extension pad 8, the second extension pad 9 and the through pipe 10 are cooperated,Through the inflation port 11 to the mounting seat 6 into the gas, the gas through the mounting seat 6 into the annular protective airbag 7 inside, annular protective airbag 7 by the input of the gas occurs inflation, the surface of the shell 4 shielding, avoid the shell 4 in the process of moving directly with the outside contact collision situation, annular protective airbag 7 inflation further drive through the four corners of the first extension pad 8 and the second extension pad 9 inflation, the first extension pad 8 and the second extension pad 9 inflation after the protrusion, with the shell 4 four corners corresponding to the adhesion paste 24 contact and adhesion, and then reach the effect of limiting the fixed shell 4, when annular protective airbag 7 inflation to the top, its top first adsorption surface 20 and second adsorption surface 22 contact adhesion, also play a limiting effect, the setting of the extrusion pad 14 under the push of the buffer spring 13 and the outer wall of the shell 4 extrusion, play the role of through between annular protective airbag 7 and the shell 4, so that when extrusion, can through the extrusion pad 14 and buffer spring 13 cooperation increase protection, when not used, can through the annular protective airbag 7 inside gas exhaust, through the press limiting plate 17 drive plug strip 18 and fixed hole 19 inner wall plug limit, to the limiting effect of annular protective airbag 7, so that in the use of the device is not affected by the annular protective airbag 7.

[0033] Example two:

[0034] On the basis of example one, such as Figure 1 , Figure 2 and Figure 7As shown, the middle of the top end of the base 2 is fixedly installed with a circuit board 29, the top end of the circuit board 29 is fixedly installed with a transformer 30, one side of the transformer 30 is provided with a siren 31, the front of the circuit board 29 is fixedly installed with a rectifier bridge 32, the circuit board 29 is electrically connected with the rectifier bridge 32, the middle of the back of the shell 4 is provided with a through hole 27, the inner wall of the through hole 27 is clamped with a cooling fan 33, the output end of the cooling fan 33 is fixedly connected with a connecting pipe 34, one end of the connecting pipe 34 is fixedly penetrated with a shunt pipe 35, the bottom end of the shunt pipe 35 is fixedly penetrated with a vertical pipe 36 on both sides, the top end of the base 2 is fixedly installed with a U-shaped pipe 37, the inner wall of the U-shaped pipe 37 is symmetrically penetrated with a plurality of shunt hoppers 38, the bottom end of the two vertical pipes 36 is fixedly penetrated with the top end of the adjacent U-shaped pipe 37, the cooperation of the cooling fan 33, the connecting pipe 34, the shunt pipe 35, the vertical pipe 36, the U-shaped pipe 37 and the shunt hopper 38, the cooling fan 33 generates wind power, which is introduced into the shunt pipe 35 through the connecting pipe 34, and then the wind power is guided into the U-shaped pipe 37 through the shunt pipe 35 and the vertical pipe 36, and then the wind power is guided into the surrounding of the circuit board 29 through the plurality of shunt hoppers 38, so that the parts on the circuit board 29 can be contacted with the wind power, thereby achieving the effect of uniform heat dissipation, when the wind power blows from the edge to the inside, the hot air rises from the top by extrusion, and then is discharged outside the outer wall of the shell 4 through the heat discharge top hole 28, thereby maintaining the heat of the air inside the shell 4 during the heat dissipation process, and also achieving the effect of air circulation, thereby playing a role in wind power cooling for the parts inside the shell 4.

[0035] Working principle: in use, the voltage display table 25 is used to observe the voltage index, the indicator 26 is used to observe the data display, the working current is improved through the rectifier bridge 32 in parallel, the siren 31 is set to sound when an accident occurs or the circuit is connected incorrectly, thereby playing a reminding role, the lithium ion battery is charged through the storage seat 1, when it is necessary to transfer, carry or transport the device, the installation seat 6 inside can be filled with gas through the inflation port 11, the gas enters the inside of the annular protective air bag 7, drives the annular protective air bag 7 to expand, the first extension pad 8, the second extension pad 9 and the through pipe 10 inside are all filled with gas and expand, so that the positions of the first extension pad 8 and the second extension pad 9 correspond to the outer wall of the adhesive sticker 24 and adhere, thereby limiting the annular protective air bag 7, the first adsorption surface 20 at the top also corresponds to the second adsorption surface 22 at the bottom of the limiting plate 17 and adheres, achieving the effect of limiting the top of the annular protective air bag 7, in the protection process, the buffer spring 13 drives the middle part of the extrusion pad 14 outside the bottom shell 4 to extrude, so that the shell 4 first acts on the annular protective air bag 7 before being hit, and then buffers through the cooperation of the buffer spring 13 and the extrusion pad 14, thereby effectively preventing the shell 4 from being hit and protecting the shell 4, when the device is not needed to be protected and needs to be used, the gas in the annular protective air bag 7 can be discharged, then the gas in the first extension pad 8, the second extension pad 9 and the through pipe 10 is discharged, the limiting plate 17 is pressed, and the annular protective air bag 7 is contracted to the bottom of the limiting plate 17 after there is no gas in the annular protective air bag 7, the annular protective air bag 7 is stored and limited through the clamping connection between the plug strip 18 and the fixed hole 19, in use, the switch of the heat dissipation fan 33 is opened at the same time, the heat dissipation fan 33 operates to generate wind power, the wind power is introduced into the shunt pipe 35 through the connecting pipe 34, and then the wind power is introduced into the U-shaped pipe 37 through the vertical pipe 36, and then the wind power is introduced into the surrounding of the circuit board 29 through the plurality of shunt hoppers 38, so that the parts on the circuit board 29 can be contacted with the wind power, and the effect of multi-angle wind power heat dissipation is achieved, when the wind power blows from the edge to the inside, the hot air on the circuit board 29 rises from the top through extrusion, and then is discharged outside the outer wall of the shell 4 through the heat discharge top hole 28, so that the air heat in the shell 4 is reduced.

[0036] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion dedicated three-stage charger, comprising a storage base (1), a base (2), an annular groove (3), a shell (4), a top cover (5), a mounting base (6), an annular protective airbag (7), a first extension pad (8), a second extension pad (9), a through tube (10), an air inlet (11), a fixing block (12), a buffer spring (13), a compression pad (14), a retaining ring (15), a retaining groove (16), a limiting plate (17), an insert (18), and a fixing hole (19). The components include a first adsorption surface (20), a top groove (21), a second adsorption surface (22), rounded corners (23), an adhesive sticker (24), a voltage display meter (25), an indicator light (26), a through hole (27), a heat dissipation top hole (28), a circuit board (29), a transformer (30), a buzzer (31), a rectifier bridge (32), a cooling fan (33), a connecting pipe (34), a diversion pipe (35), a vertical pipe (36), a U-shaped pipe (37), and a diversion hopper (38), characterized in that... The inner wall of the storage base (1) is fixedly installed with a base (2). The top of the base (2) is provided with an annular groove (3). The inner wall of the annular groove (3) is connected with a shell (4). The top of the shell (4) is provided with a top cover (5). The top of the storage base (1) is fixedly installed with a mounting base (6). The inner wall of the mounting base (6) is fixedly penetrated by an annular protective airbag (7). The top of the four corners of the inner wall of the annular protective airbag (7) is fixedly penetrated by a first extension pad (8). The bottom of the four corners of the inner wall of the annular protective airbag (7) is fixedly penetrated by a second extension pad (9). The bottom ends of the four first extension pads (8) are fixedly penetrated by two symmetrically penetrating through-tubes (10) and the top of the corresponding second extension pads (9). An inflation port (11) is provided in the middle of one side of the mounting base (6). The inner wall of the inflation port (11) is connected with a sealing plug. Two fixing blocks (12) are symmetrically connected to the middle of the four sides of the inner wall of the annular protective airbag (7). One end of each fixing block (12) is fixedly connected to a buffer spring (13). One end of each buffer spring (13) is fixedly connected to a compression pad (14). One end of each compression pad (14) is pressed against the outer wall of the adjacent outer shell (4). The top of the outer wall of the annular protective airbag (7) is fixedly connected to a limiting plate (17), and the four corners of the bottom end of the limiting plate (17) are fixedly connected to inserts (18). The four corners of the top of the mounting base (6) are provided with fixing holes (19), and the outer walls of the four inserts (18) are engaged with the inner walls of the adjacent inserts (18). The outer wall of the outer shell (4) has rounded corners (23) at the middle of the four corners. Adhesive stickers (24) are fixedly connected to the top and bottom of the outer walls of the four rounded corners (23). The positions of the multiple adhesive stickers (24) are consistent with the positions of the adjacent first extension pads (8). The outer walls of the multiple adhesive stickers (24) are adhered to each other with the outer walls of the adjacent first extension pads (8).

2. The lithium-ion dedicated three-stage charger according to claim 1, characterized in that, Each of the multiple fixing blocks (12) has a slot (16) at one end, and each of the multiple retaining rings (15) has a retaining ring (15) fixedly connected to the other end of its outer wall. The outer walls of the multiple retaining rings (15) are engaged with the inner walls of the adjacent slots (16).

3. A lithium-ion dedicated three-stage charger according to claim 1, characterized in that, The top of the limiting plate (17) is provided with a first adsorption surface (20), and the bottom of the top cover (5) is provided with a second adsorption surface (22). The outer wall of the first adsorption surface (20) and the outer wall of the second adsorption surface (22) adhere to each other.

4. A lithium-ion dedicated three-stage charger according to claim 1, characterized in that, A circuit board (29) is fixedly installed at the middle of the top of the base (2). A transformer (30) is fixedly installed at the top of the circuit board (29). A buzzer (31) is provided on one side of the transformer (30). A rectifier bridge (32) is fixedly installed on the front of the circuit board (29). The circuit board (29) is electrically connected to the rectifier bridge (32).

5. A lithium-ion dedicated three-stage charger according to claim 1, characterized in that, A through hole (27) is provided in the middle of the back of the outer shell (4). A cooling fan (33) is fitted into the inner wall of the through hole (27). A connecting pipe (34) is fixedly connected to the output end of the cooling fan (33). A diversion pipe (35) is fixedly passed through one end of the connecting pipe (34). Vertical pipes (36) are fixedly passed through both sides of the bottom end of the diversion pipe (35).

6. A lithium-ion dedicated three-stage charger according to claim 1, characterized in that, A U-shaped tube (37) is fixedly installed at the top of the base (2). Multiple diversion buckets (38) are symmetrically passed through the inner wall of the U-shaped tube (37). The bottom ends of the two vertical tubes (36) are fixedly passed through the top of the adjacent U-shaped tube (37).

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