CN211239676U

CN211239676U - DC-DC12V25A converter special for electric vehicle with 12V constant output function

Info

Publication number: CN211239676U
Application number: CN202020052852.6U
Authority: CN
Inventors: 卜庆雷
Original assignee: Fengxian Yunming Electronic Technology Co ltd
Current assignee: Fengxian Yunming Electronic Technology Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-08-11
Anticipated expiration: 2030-01-10

Abstract

The utility model relates to an electric motor car converter technical field just discloses a dedicated DC-DC12V25A converter of electric motor car with normal output function of 12V, including one end open-ended shell, the cap is installed to the opening part of shell, fixedly connected with circuit board on the inside wall of cap, be connected with a plurality of connecting wires on the circuit board, the other end of connecting wire passes the cap and outwards extends, install the motor on the inside wall that the cap was kept away from to the shell, there is the pivot output of motor through the coupling joint, just install first flabellum and main bevel gear on the axle wall of pivot, the intercommunication has the breathing pipe on the lateral wall that the shell is close to the cap, install the induced-draught fan in the mouth of pipe of breathing pipe. The utility model discloses avoid external water or steam to get into the shell when realizing the electric motor car converter is radiating, lead to the circuit board to wet and damage, and the installation and the dismantlement of the electric motor car converter of being convenient for do benefit to the maintenance of later stage to the circuit board.

Description

DC-DC12V25A converter special for electric vehicle with 12V constant output function

Technical Field

The utility model relates to an electric motor car converter technical field especially relates to a dedicated DC-DC12V25A converter of electric motor car with 12V often output function.

Background

With the development of society, electric vehicles are widely used due to their light and convenient characteristics. The electric vehicle converter plays an important role in the use of the electric vehicle as an important part of the electric vehicle. An electric vehicle converter is a device capable of converting the voltage of a battery into the working voltage of an electric appliance on an electric vehicle. Usually, the converter has a constant output of 12V for supplying uninterrupted operating power to the central locking system of the whole vehicle.

When the electric vehicle converter works, heat is inevitably generated inside the electric vehicle converter, and the internal temperature is increased. Current electric vehicle converter carries out the radiating through seting up the louvre on the shell with the installation fan, in external water or steam all can get into the shell through the louvre, and in electric vehicle in-service use, can meet the condition that splashes water very probably, lead to the inside circuit board of electric vehicle converter to wet and damage, and the installation of electric vehicle converter with dismantle inconvenient, be unfavorable for the maintenance of later stage to the circuit board.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the circuit board is affected with damp and damages the installation of electric vehicle converter and the problem of inconvenient dismantlement in that external water or steam all can get into the shell through the louvre among the prior art, and the dedicated DC-DC12V25A converter of electric vehicle who provides a have the normal output function of 12V.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a special DC-DC12V25A converter for an electric vehicle with a 12V normal output function comprises a shell with an opening at one end, a shell cover is installed at the opening of the shell, a circuit board is fixedly connected to the inner side wall of the shell cover, a plurality of connecting wires are connected to the circuit board, the other ends of the connecting wires penetrate through the shell cover and extend outwards, a motor is installed on the inner side wall of the shell far away from the shell cover, the output end of the motor is connected with a rotating shaft through a coupler, a first fan blade and a main bevel gear are installed on the shaft wall of the rotating shaft, an air suction pipe is communicated with the side wall of the shell close to the shell cover, an air suction fan is installed in the pipe orifice of the air suction pipe, an air outlet pipe is communicated with the pipe wall of the air suction pipe, a filter plate is installed in the pipe orifice of the other end of the air outlet, lie in fixed the cup jointing has followed bevel gear on the bull stick in the shell, from bevel gear and main bevel gear mesh mutually, lie in fixed the cup jointing has first bevel gear on the bull stick pole wall in the outlet duct, it has the clearance pole to rotate through the second bearing on the filter, install second flabellum and second bevel gear on the clearance pole wall, just second bevel gear and first bevel gear mesh mutually.

Preferably, the equal symmetry has seted up the fixture block groove on the inside wall that the shell is in opposite directions, fixture block inslot sliding connection has the fixture block, fixture block groove tank bottom fixedly connected with spring, the other end fixed connection of spring is on the fixture block, symmetry fixedly connected with fixed plate on the cap inside wall, the fixed orifices has been seted up to the symmetry on the fixed plate, the fixture block is close to the one end of circuit board and passes corresponding fixture block groove mouth and fixed orifices and outwards extend, the one end fixedly connected with pull rod of circuit board is kept away from to the fixture block, the other end of pull rod passes spring and fixture block groove tank bottom and outwards extends.

Preferably, one end of the cleaning rod, which is far away from the sponge block, penetrates through the second bearing and extends outwards, and the cleaning rod is fixedly connected with a hairbrush.

Preferably, the shell inner shell walls positioned at two sides of the circuit board are symmetrically and fixedly connected with limiting plates, and the circuit board is connected with the shell cover through bolts.

Preferably, the four corners department of shell bottom all fixedly connected with supporting legs, be equipped with a plurality of blind hole on the supporting leg.

Preferably, a plurality of elastic blocks are fixedly connected to the inner shell bottom of the outer shell, and the upper ends of the elastic blocks are abutted to the bottom of the circuit board.

Preferably, a drying box is fixedly connected in the air outlet pipe, the drying box is of a hollow structure, and a drying agent is filled in the drying box.

Preferably, two pull rods positioned on the same side of the shell are fixedly connected with a pull plate together.

Preferably, the opposite groove walls of the clamping block grooves are symmetrically provided with limiting grooves, limiting blocks are connected in the limiting grooves in a sliding mode, and the opposite ends of the limiting blocks penetrate through the corresponding limiting groove openings and extend into the clamping block grooves and are fixedly connected to the clamping blocks together.

Compared with the prior art, the utility model provides a dedicated DC-DC12V25A converter of electric motor car with 12V often exports function possesses following beneficial effect:

1. the special DC-DC12V25A converter for electric vehicle with 12V normal output function comprises a shell, a shell cover, a circuit board, a motor, a first fan blade, a main bevel gear, an air suction pipe, an air suction fan, an air outlet pipe, a sponge block, a rotating rod, a secondary bevel gear, a cleaning rod and a second fan blade, wherein when the converter for electric vehicle works, the motor is started to drive the first fan blade and the main bevel gear to rotate, the first fan blade rotates to blow heat on the circuit board to the lower part of the air suction pipe, the air suction fan sucks hot air into the air suction pipe, the main bevel gear drives the secondary bevel gear to rotate, so that the rotating rod, the first bevel gear and the second bevel gear rotate to drive the cleaning rod and the second fan blade to rotate, the hot air in the air suction pipe is sucked into the air outlet pipe and discharged, the heat on the circuit board can be completely taken away and discharged out of the shell, the heat dissipation effect on the circuit board is better, and through sponge piece and dry box, block it with the drying, avoid external water or steam to get into in the shell when realizing the electric motor car converter heat dissipation, lead to the circuit board to wet and damage.

2. This dedicated DC-DC12V25A converter of electric motor car with 12V normal output function, through setting up the fixture block groove, the fixture block, a spring, fixed plate and pull rod, when the electric motor car converter is dismantled to needs, the motion of keeping away from the circuit board is done to the pulling pull rod, drive the fixture block retraction fixture block inslot, and make the spring compression, the fixture block breaks away from the fixed orifices in the fixed plate, outwards stimulate the cap, can separate circuit board and cap and shell, in the installation circuit board, insert the fixture block in the fixed orifices that corresponds can, be convenient for the installation and the dismantlement of electric motor car converter, do benefit to the maintenance of later stage to the circuit board.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses in avoiding external water or steam to get into the shell when realizing the electric vehicle converter heat dissipation, lead to the circuit board to wet and damage, and the installation and the dismantlement of the electric vehicle converter of being convenient for do benefit to the maintenance of later stage to the circuit board.

Drawings

Fig. 1 is a schematic structural diagram of a DC-DC12V25A converter specially used for an electric vehicle with a 12V constant output function according to the present invention;

fig. 2 is a side view of a DC-DC12V25A converter specially used for an electric vehicle with a 12V constant output function according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B in fig. 1.

In the figure: 1 shell, 2 cap, 3 supporting legs, 4 circuit boards, 5 connecting wires, 6 motors, 7 first flabellum, 8 main bevel gears, 9 breathing pipes, 10 suction fans, 11 outlet pipes, 12 filter plates, 13 sponge blocks, 14 rotating rods, 15 slave bevel gears, 16 cleaning rods, 17 second flabellum, 18 clamping block grooves, 19 clamping blocks, 20 springs, 21 fixing plates, 22 pull rods, 23 hair brushes, 24 limiting plates, 25 elastic blocks, 26 drying boxes, 27 limiting grooves and 28 limiting blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a special DC-DC12V25A converter for an electric vehicle with a 12V constant output function, comprising a housing 1 with an opening at one end, a housing cover 2 installed at the opening of the housing 1, a circuit board 4 fixedly connected to the inner side wall of the housing cover 2, a plurality of connecting wires 5 connected to the circuit board 4, the other end of the connecting wires 5 passing through the housing cover 2 and extending outwards, a motor 6 installed on the inner side wall of the housing 1 far from the housing cover 2, a rotating shaft connected to the output end of the motor 6 through a coupling, a first fan blade 7 and a main bevel gear 8 installed on the shaft wall of the rotating shaft, an air suction pipe 9 connected to the side wall of the housing 1 near the housing cover 2, a suction fan 10 installed in the mouth of the air suction pipe 9, an air outlet pipe 11 connected to the wall of the air suction pipe 9, a filter plate 12 installed, the pipe wall of the air outlet pipe 11 is rotatably connected with a rotating rod 14 through a first bearing, the rotating rod 14 positioned in the shell 1 is fixedly sleeved with a secondary bevel gear 15, the secondary bevel gear 15 is meshed with a primary bevel gear 8, the rod wall of the rotating rod 14 positioned in the air outlet pipe 11 is fixedly sleeved with a first bevel gear, a cleaning rod 16 is rotatably connected with a filter plate 12 through a second bearing, a second fan blade 17 and a second bevel gear are installed on the rod wall of the cleaning rod 16, the second bevel gear is meshed with the first bevel gear, when the electric vehicle converter works, the motor 6 is started to drive the first fan blade 7 and the primary bevel gear 8 to rotate, the first fan blade 7 rotates to blow heat on the circuit board 4 to the lower part of the air suction pipe 9, the air suction fan 10 sucks hot air into the air suction pipe 9, the primary bevel gear 8 drives the secondary bevel gear 15 to rotate, so that the rotating rod 14, the first bevel gear and the second bevel gear rotate to drive the cleaning rod 16 and, the steam with in the aspiration channel 9 inhales in the outlet duct 11 and discharges, can take away and discharge outside the shell 1 with heat on the circuit board 4 is whole, make the radiating effect to circuit board 4 better, when water or steam pass through in the outlet duct 11 gets into the shell 1, and through sponge piece 13 and dry box 26, block it with the drying, avoid external water or steam to get into in the shell when realizing the electric motor car converter is radiating, lead to circuit board 11 to wet and damage.

The opposite inner side walls of the shell 1 are symmetrically provided with clamping block grooves 18, the clamping block grooves 18 are connected with clamping blocks 19 in a sliding manner, the bottoms of the clamping block grooves 18 are fixedly connected with springs 20, the other ends of the springs 20 are fixedly connected to the clamping blocks 19, the inner side walls of the shell cover 2 are symmetrically and fixedly connected with fixing plates 21, the fixing plates 21 are symmetrically provided with fixing holes, one ends of the clamping blocks 19, which are close to the circuit board 4, penetrate through the notches and the fixing holes of the corresponding clamping block grooves 18 and extend outwards, one ends of the clamping blocks 19, which are far away from the circuit board 4, are fixedly connected with pull rods 22, the other ends of the pull rods 22 penetrate through the bottoms of the springs 20 and the clamping block grooves 18 and extend outwards, when the electric vehicle converter needs to be disassembled, the pull rods 22 move far away from the circuit board 4 to drive the clamping blocks 19 to retract into the, can separate circuit board 4 and cap 2 and shell 1, in installation circuit board 4, insert fixture block 19 in the fixed orifices that corresponds can, the installation and the dismantlement of the electric motor car converter of being convenient for do benefit to the later stage to the maintenance of circuit board 4.

One end of the cleaning rod 16 far away from the sponge block 13 penetrates through the second bearing and extends outwards, and is fixedly connected with a brush 23, and the filter plate 12 can prevent impurities such as dust and the like from entering the shell 1.

Be located symmetrical fixedly connected with limiting plate 24 on the shell 1 inner wall of the shell of circuit board 4 both sides, can carry on spacingly to circuit board 4, circuit board 4 passes through the bolt and is connected with cap 2.

The equal fixedly connected with supporting leg 3 in four corners department of shell 1 bottom is equipped with a plurality of blind hole on the supporting leg 3, and the installation of this electric motor car converter of being convenient for is fixed.

A plurality of elastic blocks 25 are fixedly connected to the inner shell bottom of the outer shell 1, and the upper ends of the elastic blocks 25 are abutted to the bottom of the circuit board 4 to buffer the circuit board 4.

Fixedly connected with drying box 26 in the outlet duct 11, drying box 26 is fretwork hollow structure, and drying box 26 intussuseption is filled with the drier, can carry out the drying to steam.

The two pull rods 22 on the same side of the shell 1 are fixedly connected with a pull plate together, so that the two pull rods 22 on the same side can be pulled simultaneously.

Spacing groove 27 has been seted up to the symmetry on the cell wall that the fixture block groove 18 is in opposite directions, and sliding connection has stopper 28 in the spacing groove 27, and two stopper 28 one end in opposite directions pass corresponding spacing groove 27 notch and extend to fixture block groove 18 in, and common fixed connection has limiting displacement to fixture block 19 on fixture block 19 for fixture block 19 moves more steadily.

In the utility model, when the electric vehicle converter works, the motor 6 is started to drive the first fan blade 7 and the main bevel gear 8 to rotate, the first fan blade 7 rotates to blow the heat on the circuit board 4 to the lower part of the suction pipe 9, the suction fan 10 sucks the hot air into the suction pipe 9, the main bevel gear 8 drives the auxiliary bevel gear 15 to rotate, the rotating rod 14, the first bevel gear and the second bevel gear rotate to drive the cleaning rod 16 and the second fan blade 17 to rotate, the hot air in the suction pipe 9 is sucked into the outlet pipe 11 and discharged, the heat on the circuit board 4 can be completely taken away and discharged out of the shell 1, the heat dissipation effect on the circuit board 4 is better, when water or vapor enters the shell 1 through the outlet pipe 11, the water or vapor passes through the sponge block 13 and the drying box 26 to block and dry the water or vapor, the heat dissipation of the electric vehicle converter is realized, and the external water or vapor is prevented from entering the, causing the circuit board 11 to be damaged by moisture; when the electric vehicle converter needs to be disassembled, the pulling pull rod 22 moves away from the circuit board 4, the clamping block 19 is driven to retract into the clamping block groove 18, the spring 20 is compressed, the clamping block 19 is separated from the fixing hole in the fixing plate 21, the shell cover 2 is pulled outwards, the circuit board 4 and the shell cover 2 can be separated from the shell 1, the circuit board 4 is installed, the clamping block 19 is inserted into the corresponding fixing hole, the electric vehicle converter is convenient to install and disassemble, and later maintenance on the circuit board 4 is facilitated.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A special DC-DC12V25A converter for an electric vehicle with a 12V constant output function comprises a shell (1) with an opening at one end, and is characterized in that a shell cover (2) is installed at the opening of the shell (1), a circuit board (4) is fixedly connected to the inner side wall of the shell cover (2), a plurality of connecting wires (5) are connected to the circuit board (4), the other ends of the connecting wires (5) penetrate through the shell cover (2) and extend outwards, a motor (6) is installed on the inner side wall, far away from the shell cover (2), of the shell (1), the output end of the motor (6) is connected with a rotating shaft through a coupler, a first fan blade (7) and a main bevel gear (8) are installed on the shaft wall of the rotating shaft, an air suction pipe (9) is communicated with the side wall, close to the shell cover (2), and an air suction fan (10) is installed in the pipe, the utility model discloses a cleaning device, including breathing pipe (9), filter (12), intraductal fixedly connected with sponge piece (13) of outlet duct (11), be connected with bull stick (14) through first bearing rotation on the pipe wall of outlet duct (11), be located fixed cup jointing from bevel gear (15) on bull stick (14) in shell (1), from bevel gear (15) and main bevel gear (8) mesh mutually, be located fixed cup jointing has first bevel gear on bull stick (14) pole wall in outlet duct (11), be connected with clearance pole (16) through the second bearing rotation on filter (12), install second flabellum (17) and second bevel gear on clearance pole (16) pole wall, just second bevel gear and first bevel gear mesh mutually.

2. The DC-DC12V25A converter special for electric vehicle with 12V constant output function as claimed in claim 1, it is characterized in that the inner side walls of the shell (1) which are opposite are symmetrically provided with block grooves (18), a clamping block (19) is connected in the clamping block groove (18) in a sliding way, a spring (20) is fixedly connected at the bottom of the clamping block groove (18), the other end of the spring (20) is fixedly connected on the clamping block (19), the inner side wall of the shell cover (2) is symmetrically and fixedly connected with a fixing plate (21), the fixing plate (21) is symmetrically provided with fixing holes, one end of the clamping block (19) close to the circuit board (4) passes through the corresponding notch of the clamping block groove (18) and the fixing hole and extends outwards, one end of the clamping block (19) far away from the circuit board (4) is fixedly connected with a pull rod (22), the other end of the pull rod (22) penetrates through the bottoms of the spring (20) and the fixture block groove (18) and extends outwards.

3. The special DC-DC12V25A converter for electric vehicle with 12V constant output function as claimed in claim 1, wherein the end of the cleaning rod (16) far from the sponge block (13) passes through the second bearing and extends outwards, and a brush (23) is fixedly connected with the end.

4. The special DC-DC12V25A converter for electric vehicle with 12V constant output function according to claim 1, wherein the inner walls of the housing (1) on both sides of the circuit board (4) are symmetrically and fixedly connected with limiting plates (24), and the circuit board (4) is connected with the housing cover (2) through bolts.

5. The special DC-DC12V25A converter for electric vehicle with 12V constant output function according to claim 1, wherein the four corners of the bottom of the casing (1) are fixedly connected with support legs (3), and the support legs (3) are provided with a plurality of blind holes.

6. The special DC-DC12V25A converter with 12V constant output function for electric vehicle as claimed in claim 1, wherein a plurality of elastic blocks (25) are fixedly connected to the inner bottom of the outer casing (1), and the upper ends of the elastic blocks (25) are all abutted against the bottom of the circuit board (4).

7. The special DC-DC12V25A converter for electric vehicle with 12V constant output function according to claim 1, wherein a drying box (26) is fixedly connected in the air outlet pipe (11), the drying box (26) is a hollow structure, and a drying agent is filled in the drying box (26).

8. The special DC-DC12V25A converter for electric vehicle with 12V constant output function as claimed in claim 2, wherein two tie rods (22) on the same side of the housing (1) are fixedly connected with a pull plate.

9. The special DC-DC12V25A converter for electric vehicle with 12V constant output function according to claim 2, wherein the opposite slot walls of the block slots (18) are symmetrically provided with limiting slots (27), the limiting slots (27) are slidably connected with limiting blocks (28), and the opposite ends of the two limiting blocks (28) pass through the corresponding notch of the limiting slot (27) and extend into the block slot (18), and are jointly and fixedly connected to the block (19).