Lithium battery charger with dust removal function

Abstract

The invention belongs to the technical field of electric vehicle charging, and relates to a lithium battery charger with a dust removal function, the lithium battery charger comprises a shell I, a shell II, an exhaust fan, an air blowing mechanism and a dust collection mechanism, the shell II is slidably connected to the shell I, the shell I and the shell II form a lithium battery charger shell, the exhaust fan is mounted on the shell I, and the air blowing mechanism is mounted on the shell II. The shell I is provided with a circular opening, the exhaust fan is aligned with the circular opening, the shell II is uniformly provided with a plurality of heat dissipation holes, an air blowing mechanism used for blowing away dust on an internal circuit board of the charger is arranged between the shell II and the shell I, and the shell I is provided with a dust suction mechanism used for sucking the dust. During operation, air blowing can be carried out through the air blowing frame, so that dust attached to the circuit board is blown away, air suction can be carried out through the dust collection frame while blowing away is carried out, the blown-away dust is collected, the automatic dust removal effect is achieved, the shell does not need to be disassembled during dust removal, and operation is more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric vehicle charging, and relates to a lithium battery charger with a dust removal function. Background Art

[0002] When charging a two-wheeled electric vehicle, a lithium battery charger is usually used to charge the electric vehicle. The lithium battery charger controls the technology through a microcomputer, and the charging current automatically decreases as the charging voltage of the storage battery increases; combined with the pulse charging method at the end of charging, the charging effect is more ideal.

[0003] When the existing lithium battery charger is in use, air inlet grooves are provided on the outer shell wall for ventilation and heat dissipation inside the lithium battery charger. After long-term use, dust is likely to accumulate in the air inlet grooves. At this time, when using the air inlet, it is easy to bring dust into the charger, which affects the heat dissipation performance of the charger and is also likely to affect the service life of the charger. If cleaning is required, only the outer shell of the charger can be removed to deal with the dust attached to the internal structure. Summary of the Invention

[0004] In view of this, the present invention provides a lithium battery charger with a dust removal function.

[0005] The technical solution of the present invention is: a lithium battery charger with a dust removal function, including a housing one, a housing two, an exhaust fan, a blowing mechanism and a dust suction mechanism. The housing two is slidably connected to the housing one, and the housing one and the housing two form the outer shell of the lithium battery charger. An exhaust fan is installed on the housing one, a circular opening is provided on the housing one, and the exhaust fan is aligned with the circular opening. A plurality of heat dissipation holes are evenly provided on the housing two. A blowing mechanism for blowing the dust on the internal circuit board of the charger is provided between the housing two and the housing one, and a dust suction mechanism for absorbing the dust is provided on the housing one.

[0006] Optionally, the blowing mechanism includes a reciprocating lead screw, a blowing frame, a belt drive group, a rotating shaft and a splicing structure. The reciprocating lead screw is rotatably connected to the inner top of the housing two, the blowing frame is threadedly connected to the reciprocating lead screw, the blowing frame is slidably connected to the housing two, the rotating shaft is rotatably connected to the housing one, a splicing structure is provided between the rotating shaft and the reciprocating lead screw, and a belt drive group is connected between the rotating shaft and the main shaft of the exhaust fan.

[0007] Optionally, the splicing structure includes a triangular pyramid block. The triangular pyramid block is connected to the reciprocating lead screw, a tapered groove is provided on the rotating shaft, and the triangular pyramid block can be inserted into the tapered groove.

[0008] Optionally, the dust suction mechanism includes a dust suction frame, a collection frame, a connecting pipe, a cover plate, an air suction pipe and an air pump. The dust suction frames are connected to both sides of the first housing. The collection frame is connected to the inner bottom of the first housing. The middle of the bottom of the first housing is open, and the open position is aligned with the collection frame. A cover plate is rotatably connected to the open part of the first housing, and there is a damping between the cover plate and the first housing. A plurality of connecting pipes are evenly spaced and communicated between the dust suction frame and the collection frame. Two air pumps are installed at the inner bottom of the first housing, and air suction pipes are communicated between the suction ends of the two air pumps and the collection frame.

[0009] Optionally, it further includes an exhaust pipe. An exhaust pipe is communicated between the air outlet end of the air pump and the blowing frame, and the exhaust pipe is a folding hose.

[0010] Optionally, it further includes a dust blocking mechanism. The dust blocking mechanism includes an inner cushion plate, a middle ring, an outer ring and an elastic member. The outer ring is connected to the inside of the circular opening. The middle ring is slidably connected to the inside of the outer ring, and the inner cushion plate is slidably connected to the inside of the middle ring. Elastic members are connected between the inner cushion plate and the middle ring and between the middle ring and the outer ring.

[0011] Optionally, it further includes a cleaning mechanism. The cleaning mechanism includes a connecting plate and a cleaning brush. The connecting plate is connected to the blowing frame. A plurality of cleaning brushes are evenly spaced and connected to the bottom of the connecting plate, and the bottom of the cleaning brush contacts the circuit board.

[0012] Optionally, it further includes side plates and side brushes. The side plates are connected to both sides of the connecting plate. A plurality of side brushes are evenly spaced and connected to the side plates, and the side brushes on both sides contact the dust suction frames on both sides respectively.

[0013] Optionally, it further includes a barrier frame and a molecular sieve. The barrier frame is connected to the second housing. Through holes corresponding to the heat dissipation holes are evenly spaced and opened on the barrier frame, and a molecular sieve is arranged inside the barrier frame.

[0014] The present invention has the following advantages: 1. When the present invention is in operation, it can blow air through the blowing frame to blow away the dust attached to the circuit board, and at the same time, it can suck air through the dust suction frame to collect the blown dust, so as to achieve the effect of automatic dust removal. There is no need to disassemble the outer shell during dust removal, and the operation is more convenient.

[0015] 2. When the exhaust fan exhausts for heat dissipation treatment, the middle ring and the inner cushion plate that slide relative to each other can be opened to expose a gap for heat dissipation treatment. After the heat dissipation is completed, the elastic member can drive the middle ring and the inner ring to reset to prevent dust from entering the housing through the circular opening.

[0016] 3. When the air enters through the heat dissipation holes, the hydrophilic property of the molecular sieve can be used to dry the air passing through the molecular sieve to prevent the moisture in the air from being too large and causing the dust to adhere to the circuit board. Description of the Drawings

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 This is a cross-sectional view of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the dust suction mechanism of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the air blowing mechanism of the present invention.

[0021] Figure 5 This is an exploded view of the air blowing mechanism of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the dust blocking mechanism of the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the dust blocking mechanism, the barrier frame and the molecular sieve of the present invention.

[0024] Figure 8 This is a cross-sectional view of the dust blocking mechanism of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of the cleaning mechanism, the side plate and the side brush of the present invention.

[0026] In the above drawings: 1 - housing one, 2 - housing two, 3 - exhaust fan, 41 - reciprocating lead screw, 42 - air blowing frame, 43 - belt drive group, 44 - rotating shaft, 51 - triangular cone block, 52 - tapered groove, 61 - dust suction frame, 62 - collection frame, 63 - connecting pipe, 64 - cover plate, 65 - suction pipe, 66 - air pump, 67 - exhaust pipe, 81 - inner backing plate, 82 - middle ring, 83 - outer ring, 84 - elastic member, 91 - connecting plate, 92 - sweeping brush, 101 - side plate, 102 - side brush, 111 - barrier frame, 112 - molecular sieve, 100 - circuit board. Detailed implementation manners

[0027] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and explanations of the present invention are used to explain the present invention, but do not limit the present invention.

[0028] A lithium - ion battery charger with a dust removal function, as Figures 1-5As shown in the figure, it includes a first housing 1, a second housing 2, an exhaust fan 3, a blowing mechanism and a dust suction mechanism. The second housing 2 is slidably connected to the first housing 1, and the second housing 2 can slide left and right on the first housing 1. The first housing 1 and the second housing 2 form the outer shell of a lithium battery charger. An exhaust fan 3 is installed on the left side of the first housing 1. A circular opening is formed in the middle of the left side of the first housing 1, and the exhaust fan 3 is aligned with the circular opening. A plurality of heat dissipation holes are evenly formed in the second housing 2. A blowing mechanism for blowing the dust on the internal circuit board 100 of the charger is provided between the second housing 2 and the first housing 1, and a dust suction mechanism for sucking the dust is provided on the first housing 1.

[0029] As Figures 2-5 shown, the blowing mechanism includes a reciprocating lead screw 41, a blowing frame 42, a belt drive group 43, a rotating shaft 44 and a splicing structure. The reciprocating lead screw 41 is rotatably connected to the inner top of the second housing 2. The blowing frame 42 is threadedly connected to the reciprocating lead screw 41. The blowing frame 42 is slidably connected to the second housing 2, so that the rotation of the reciprocating lead screw 41 can drive the blowing frame 42 to reciprocate left and right through the thread. The rotating shaft 44 is rotatably connected to the upper left side of the first housing 1. A splicing structure is provided between the rotating shaft 44 and the reciprocating lead screw 41. A belt drive group 43 is connected between the rotating shaft 44 and the main shaft of the exhaust fan 3, so that when the exhaust fan 3 operates, it can drive the rotating shaft 44 to rotate through the belt drive group 43.

[0030] As Figure 5 shown, the splicing structure includes a triangular pyramid block 51. The triangular pyramid block 51 is connected to the left side of the reciprocating lead screw 41. A conical groove 52 is formed on the right side of the rotating shaft 44. The triangular pyramid block 51 can be inserted into the conical groove 52 to realize the splicing between the rotating shaft 44 and the reciprocating lead screw 41, so that the rotation of the rotating shaft 44 can drive the reciprocating lead screw 41 to rotate.

[0031] As Figures 2-4 shown, the dust suction mechanism includes a dust suction frame 61, a collection frame 62, a connecting pipe 63, a cover plate 64, a suction pipe 65 and an air pump 66. The dust suction frames 61 are connected to the front and rear sides inside the first housing 1. The collection frame 62 is connected to the inner bottom of the first housing 1. The middle of the bottom of the first housing 1 is open, and the open position is aligned with the collection frame 62. A cover plate 64 is rotatably connected to the open part of the first housing 1. There is a damping between the cover plate 64 and the first housing 1. When the cover plate 64 is closed, a sealed space is formed between the cover plate 64 and the collection frame 62. A plurality of connecting pipes 63 are evenly spaced and communicated between the dust suction frame 61 and the collection frame 62. Two air pumps 66 are installed on the left side of the inner bottom of the first housing 1. The suction ends of the two air pumps 66 are communicated with the collection frame 62 through suction pipes 65. A screen is installed at the connection between the collection frame 62 and the suction pipe 65 to prevent dust from entering the suction pipe 65.

[0032] AsFigure 2 and Figure 4 As shown in Figure 4 , it further includes an exhaust pipe 67. There is an exhaust pipe 67 communicating between the air outlet end of the air pump 66 and the air blowing frame 42. The exhaust pipe 67 penetrates through the housing 1, and the exhaust pipe 67 is a folding hose.

[0033] When a lithium battery charger is needed, this lithium battery charger can be used. During use, if heat dissipation is required, the exhaust fan 3 can be started to exhaust and dissipate heat, and the heat dissipation holes can allow gas to enter, thereby promoting gas circulation and achieving the effect of heat dissipation. During the heat dissipation process, the rotation of the main shaft on the exhaust fan 3 can drive the rotation of the rotating shaft 44 through the belt transmission group 43. The rotation of the rotating shaft 44 can drive the reciprocating screw rod 41 to rotate through the transmission of the triangular cone block 51, thereby driving the air blowing frame 42 to move left and right reciprocally. At the same time, the air pump 66 can be controlled to start. Through the transmission of the suction pipe 65, the collection frame 62, and the connecting pipe 63, the dust suction frame 61 generates suction. When the air pump 66 starts, its air outlet end can discharge gas through the exhaust pipe 67 through the air blowing frame 42, thereby blowing away the dust adhering to the circuit board 100. At this time, the dust suction frame 61 sucks dust, and the blown dust can be sucked into the collection frame 62 for collection. In this way, the effect of automatic dust removal can be achieved, and the operation is more convenient.

[0034] As Figures 6-8 shown in Figures 6-8 , it further includes a dust blocking mechanism. The dust blocking mechanism includes an inner backing plate 81, a middle ring 82, an outer ring 83, and an elastic member 84. The outer ring 83 is connected inside the circular opening. The middle ring 82 is slidably connected inside the outer ring 83, and the inner backing plate 81 is slidably connected inside the middle ring 82. Elastic members 84 are connected between the inner backing plate 81 and the middle ring 82 and between the middle ring 82 and the outer ring 83. The elastic member 84 is a return spring.

[0035] When the exhaust fan 3 operates, it can blow the inner backing plate 81 and the middle ring 82 to move leftward, and the elastic member 84 is compressed, so that gaps are generated between the inner backing plate 81 and the middle ring 82 and between the middle ring 82 and the outer ring 83 for gas to be discharged. When the exhaust fan 3 stops operating, under the action of the elastic member 84, the inner backing plate 81 and the middle ring 82 reset, and can block the circular opening to prevent dust from entering the housing of the lithium battery charger through the circular opening.

[0036] As Figure 9 shown in Figure 9 , it further includes a cleaning mechanism. The cleaning mechanism includes a connecting plate 91 and a cleaning brush 92. The connecting plate 91 is connected to the right side of the air blowing frame 42. A plurality of cleaning brushes 92 are evenly spaced and connected to the bottom of the connecting plate 91. The bottom of the cleaning brush 92 contacts the circuit board 100, so that the cleaning brush 92 can sweep away the dust adhering to the circuit board 100 when moving.

[0037] As Figure 9As shown, it further includes side plates 101 and side brushes 102. The side plates 101 are connected to both the front and rear sides of the connecting plate 91. A plurality of side brushes 102 are evenly spaced and connected to the side plates 101. The side brushes 102 on both sides are respectively in contact with the dust suction frames 61 on both sides, so that when the side brushes 102 move, they can sweep away the dust attached to the dust suction frames 61.

[0038] When the air blowing frame 42 moves, it can also drive the sweeping brush 92 and the side brush 102 to move through the connecting plate 91 and the side plates 101. When the sweeping brush 92 moves, it can sweep away the dust attached to the circuit board 100 to prevent dust from adhering to the circuit board 100. And when the side brush 102 moves, it can sweep away the dust attached to the dust suction frame 61 to prevent dust from adhering and affecting the dust removal effect.

[0039] As Figure 7 shown, it further includes a barrier frame 111 and a molecular sieve 112. The barrier frame 111 is connected to the right side inside the second housing 2. The barrier frame 111 is evenly spaced with through holes corresponding to the heat dissipation holes. The molecular sieve 112 is arranged inside the barrier frame 111.

[0040] When the heat dissipation holes intake air, the hydrophilic property of the molecular sieve 112 can be utilized to dry the air passing through the molecular sieve 112, so as to prevent the dust and moisture in the air from adhering to the circuit board 100 and making it difficult to brush off the dust at the circuit board 100.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A lithium battery charger with dust removal function, characterized in that: The invention comprises a shell body 1 (1), a shell body 2 (2), an exhaust fan (3), an air blowing mechanism and a dust collecting mechanism. The shell body 1 (1) is slidably connected to the shell body 2 (2). The shell body 1 (1) and the shell body 2 (2) constitute a lithium battery charger housing. The shell body 1 (1) is equipped with an exhaust fan (3). The shell body 1 (1) is provided with a circular opening. The exhaust fan (3) is aligned with the circular opening. The shell body 2 (2) is evenly provided with a plurality of heat dissipation holes. An air blowing mechanism for blowing away dust on a circuit board (100) inside the charger is provided between the shell body 2 (2) and the shell body 1 (1). The shell body 1 (1) is provided with a dust collecting mechanism for absorbing dust.

2. The lithium battery charger with dust removal function according to claim 1, characterized in that: The air blowing mechanism comprises a reciprocating screw (41), an air blowing frame (42), a belt transmission group (43), a rotating shaft (44) and a splicing structure. The reciprocating screw (41) is rotatably connected to the top of the second shell (2). The air blowing frame (42) is threadedly connected to the reciprocating screw (41). The air blowing frame (42) is slidably connected to the second shell (2). The first shell (1) is rotatably connected to the rotating shaft (44). A splicing structure is provided between the rotating shaft (44) and the reciprocating screw (41). The belt transmission group (43) is connected between the rotating shaft (44) and the main shaft of the exhaust fan (3).

3. The lithium battery charger with dust removal function according to claim 2, characterized in that: The splicing structure comprises a triangular cone block (51), the reciprocating screw rod (41) is connected with the triangular cone block (51), the rotating shaft (44) is provided with a conical groove (52), and the triangular cone block (51) can be inserted into the conical groove (52).

4. The lithium battery charger with dust removal function according to claim 3 is characterized in that: The dust collection mechanism comprises a dust collection frame (61), a collection frame (62), a connecting pipe (63), a cover plate (64), an air suction pipe (65) and an air pump (66). The dust collection frames (61) are connected to both sides of the shell (1). The inner bottom of the shell (1) is connected to the collection frame (62). The middle of the bottom of the shell (1) is open, and the open position is aligned with the collection frame (62). The open part of the shell (1) is rotatably connected to the cover plate (64). There is damping between the cover plate (64) and the shell (1). A plurality of connecting pipes (63) are evenly spaced and connected between the dust collection frame (61) and the collection frame (62). Two air pumps (66) are installed at the inner bottom of the shell (1). Air suction pipes (65) are connected between the air suction ends of the two air pumps (66) and the collection frame (62).

5. The lithium battery charger with dust removal function according to claim 4, characterized in that: It also includes an exhaust pipe (67), wherein the exhaust pipe (67) is connected between the air outlet end of the air pump (66) and the air blowing frame (42), and the exhaust pipe (67) is a foldable hose.

6. The lithium battery charger with dust removal function according to claim 5, characterized in that: The dust blocking mechanism also includes an inner pad (81), a middle ring (82), an outer ring (83) and an elastic member (84); the outer ring (83) is connected to the circular opening; the middle ring (82) is slidably connected to the outer ring (83); the inner pad (81) is slidably connected to the middle ring (82); the elastic member (84) is connected between the inner pad (81) and the middle ring (82) and between the middle ring (82) and the outer ring (83).

7. The lithium battery charger with dust removal function according to claim 6, characterized in that: It also includes a cleaning mechanism, the cleaning mechanism including a connecting plate (91) and a sweeping brush (92), the blowing frame (42) being connected to the connecting plate (91), a plurality of sweeping brushes (92) being evenly spaced and connected to the bottom of the connecting plate (91), the bottom of the sweeping brush (92) being in contact with the circuit board (100).

8. The lithium battery charger with dust removal function according to claim 7, characterized in that: It also comprises side panels (101) and side brushes (102); the side panels (101) are connected to both sides of the connecting plate (91); a plurality of side brushes (102) are evenly spaced and connected to the side panels (101); the side brushes (102) on both sides are in contact with the dust collection frames (61) on both sides respectively.

9. The lithium battery charger with dust removal function according to claim 8, characterized in that: It also comprises a barrier frame (111) and a molecular sieve (112); the barrier frame (111) is connected to the second shell (2); through holes corresponding to the heat dissipation holes are evenly spaced on the barrier frame (111); and the molecular sieve (112) is arranged in the barrier frame (111).

Images