CN208827804U - A kind of electric car brake vacuum pump - Google Patents

Abstract

The utility model relates to a kind of electric car brake vacuum pumps.The utility model provides following technical solution: a kind of electric car brake vacuum pump, including motor and the pump housing, motor is connected with the pump housing, the junction of motor and the pump housing is respectively equipped with compatible connecting flange faces, one of connecting flange faces are circumferentially equidistantly equipped with several mounting holes, the axial ends of mounting hole is respectively equipped with opening, close to connecting flange faces be in contact one end opening be under shed, the opening of the other end is upper opening, locking device is equipped in mounting hole, locking device includes the spring being arranged in mounting hole, briquetting and closing piece, briquetting includes the press-side of extended upper opening and the conflict end with spring interface touching, the cross-sectional area for contradicting end is greater than upper opening, under shed can be passed through by closing piece；Another connecting flange faces co-operating latch means is equipped with the lock groove that can lock closing piece.The utility model solves the problems, such as that motor and pump housing disassembly are difficult.

Description

A kind of electric car brake vacuum pump

Technical field

The utility model relates to a kind of electric car brake vacuum pumps.

Background technique

Electric car is gradually approved that occupation rate of market is also gradually being mentioned as a kind of environmentally friendly vehicle by average family It rises.Electric car eliminates the engine of orthodox car using electricity as power, cannot use on transmission automobile with engine offer Vacuum source, thus vacuum pump substitution compensates for such defect, provides effectively stable vacuum source for the brake system of electric car.

The principle of brake vacuum pump is that the intracorporal piston rod of pump is driven to do piston motion by motor, to generate vacuum. Wherein, motor in the prior art and the pump housing are bolted, and are crossed in life daily in use, past when something goes wrong Toward needing to remove motor from the pump housing.And motor is when in use, and many lubricating grease, motor and pump are often added in motor Often to be stained with partial lubrication rouge on bolt after body disassembly several times, these lubricating grease are exposed mixed with the dust in air outside It is filled in after conjunction in the thread space of bolt, influences the rotation of bolt, so that the dismounting between motor and the pump housing is difficult.

Summary of the invention

For the problems of the prior art, the utility model provides a kind of electric car brake vacuum pump, solves electricity The problem of machine and pump housing disassembly difficulty, so that dismounting or easy for installation, simple.

To achieve the above object, the utility model provides following technical solution: a kind of electric car brake vacuum pump, packet Motor and the pump housing are included, the motor is connected with the pump housing, and the junction of the motor and the pump housing is respectively equipped with compatible connection method Blue face, one of connecting flange faces are circumferentially equidistantly equipped with several mounting holes, the axial ends of the mounting hole It is respectively equipped with opening, wherein being under shed close to the be in contact opening of one end of connecting flange faces, the opening of the other end is upper opening, Locking device is equipped in the mounting hole, locking device includes the spring being arranged in mounting hole, the briquetting with spring conflict And the closing piece being connected with briquetting, the briquetting include the press-side of extended upper opening and support with what spring interface touched Contravention, the cross-sectional area for contradicting end are greater than upper opening, and the under shed can be passed through by closing piece；Another described connecting flange Face co-operating latch means are equipped with the lock groove that can lock closing piece.

By adopting the above technical scheme, the bolt for connecting the pump housing and motor is substituted for locking device and can locking or release The lock groove of locking device can apply pressure by the press-side to briquetting, the conflict end compressed spring of briquetting is made to make it Deformation, and the closing piece for driving briquetting to be connected is mobile, so that closing piece is entered lock groove by under shed and is lockable, and when lock Only when slot release closing piece, the thrust that camber of spring generates can make closing piece leave lock groove, come back to mounting hole, solve motor The difficult problem with pump housing disassembly, so that dismounting or easy for installation, simple.

Further, it is respectively equipped with guide pad group on two sidewalls opposite inside the lock groove, the two sidewalls are led It is less than the diameter of closing piece to the spacing of block group, the guide pad group includes the first guide pad and is arranged closer to locking trench bottom The spacing of second guide pad, first guide pad and the second guide pad can hold closing piece and pass through, the first guide pad and adjacent two Side wall formation can hold the access road and exit passageway that closing piece passes through, and one end of the first guide pad towards the locking channel opening is To the inclined inclined-plane in access road direction, the other end is equipped with " W " the shape card slot that can block closing piece, and the second guide pad is led towards first To one end of block be equipped with shifted to install with " W " shape card slot and closer to exit passageway " V " shape card slot.

By adopting the above technical scheme, closing piece is connected and moves with it with briquetting, when closing piece is caught in Shi Weisuo in lock groove Determine state, be release conditions when closing piece leaves from lock groove, returns to mounting hole: in locking process, briquetting is under pressure Afterwards, closing piece move with briquetting to the first guiding Block direction, and the effect through the first guide pad inclined-plane is moved to access road, from entering Mouth channel enters between the first guide pad and the second guide pad, after the pressure that briquetting is subject to disappears, generates the spring meeting of deformation Reversed thrust is generated to briquetting, closing piece is stuck in the first guide pad with briquetting counter motion " in W " shape card slot；It releases During putting, after briquetting is under pressure, closing piece is mobile with briquetting, leaves and is arranged on the first guide pad " W " shape card slot, to Second guiding Block direction movement, falls into " V " shape card slot, and after the pressure being subject to disappears, briquetting is acted on anti-by spring thrust To movement, and closing piece counter motion is driven, because " V " shape card slot is closer to exit passageway, into exit passageway, from exit passageway It leaves.

Further, it is connected between the closing piece and conflict end by connecting rod, described connecting rod one end connects closing piece, separately One end is equipped with globe joint, and the end that contradicts is equipped with the spherical interface being adapted to globe joint.

By adopting the above technical scheme, setting can be such that direction of the closing piece in sliding more preferably converts in this way, so that closing piece is being locked Sliding only in slot is more flexible, conveniently.

Further, the locking channel opening is communicated under shed, and can be passed through by closing piece.

By adopting the above technical scheme, after setting can make closing piece leave mounting hole under shed in this way, by under shed phase Logical locking channel opening enters in lock groove.

Further, the closing piece is spherical shape.

By adopting the above technical scheme, spherical closing piece and the contact area of guide pad group are smaller, can be reduced frictional force, more favorably In the sliding of closing piece.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of locking device.

Fig. 3 is the distribution schematic diagram of guide pad group in lock groove.

Movement schematic diagram of the closing piece in lock groove when Fig. 4 is locking device locking.

Fig. 5 is movement schematic diagram of the closing piece in lock groove when locking device discharges.

Specific embodiment

Specific embodiment of the present utility model is described further below in conjunction with accompanying drawings and embodiments.

A kind of electric car brake vacuum pump as shown in Figs. 1-2, including motor 1 and the pump housing 2, the motor 1 and the pump housing 2 It is connected, the junction of the motor 1 and the pump housing 2 is respectively equipped with compatible connecting flange faces 3, one of connecting flange Face 3 is circumferentially equidistantly equipped with several mounting holes 4, is equipped with locking device 5, another described connection method in the mounting hole 4 Blue 3 co-operating latch means 5 of face be equipped with can locking or release locking device 5 lock groove 9.

It should be noted that the mountable locking device 5 of connecting flange faces 3 being arranged on motor 1, the company that is arranged on the pump housing 2 The settable lock groove 9 in acting flange face 3；Conversely, locking device 5 is mounted on connecting flange faces 3 set by the pump housing 2, lock groove 9 It is arranged on connecting flange faces 3 set by motor 1.Wherein, the present embodiment is using the latter.

The axial ends of the mounting hole 4 is respectively equipped with opening, wherein being in contact the opening of one end close to two connecting flange faces 3 Mouth is under shed 42, and the opening of the other end is upper opening 41.

The locking device include the spring 7 being arranged in mounting hole 4, with spring 7 contradict briquetting 6 and with pressing The connected closing piece 8 of block 6, the briquetting 6 include the press-side 61 of extended upper opening and the conflict end that is in contact with spring 7 62, the cross-sectional area for contradicting end 62 is greater than upper opening 41, and the under shed 42 can be passed through by closing piece 8.

By the bolt for connecting the pump housing 2 and motor 1 be substituted for locking device 5 and with can locking or release locking device 5 Lock groove 9 can apply pressure by the press-side 61 to briquetting 6,62 compressed spring 7 of conflict end of briquetting 6 is made to make its shape Become, and the closing piece 8 for driving briquetting 6 to be connected is mobile, closing piece 8 is made to enter lock groove 9 by under shed 42 and is lockable, and When lock groove 9 discharges closing piece 8, the thrust that the deformation of spring 7 generates can make closing piece 8 leave lock groove 9, come back to mounting hole 4, Solve the problems, such as that motor 1 and the pump housing 2 dismantle difficulty, so that dismounting or easy for installation, simple.

9 inside of lock groove as shown in Figure 3 is respectively equipped with guide pad group 10 on opposite two sidewalls, and the two sidewalls are led It is less than the diameter of closing piece 8 to the spacing of block group 10.The guide pad group 10 include the first guide pad 12 with closer to 9 bottom of lock groove Second guide pad 13 of portion's setting.

The spacing of first guide pad 12 and the second guide pad 13 can hold closing piece 8 and pass through, the first guide pad 12 with it is adjacent Two sidewalls formed and can hold the access road 14 and exit passageway 15 that closing piece 8 passes through, first guide pad 12 is towards lock groove 9 One end of opening is to the inclined inclined-plane in 14 direction of access road, and the other end is equipped with " W " the shape card slot 16 that can block closing piece 8, the Two guide pads 13, which are equipped with towards one end of the first guide pad 12, to be shifted to install with " W " shape card slot 16 and closer to exit passageway 15 " V " shape card slot 17.Closing piece 8 is connected and moves with it with briquetting 6, is lock state when closing piece 8 is caught in lock groove 9, when Closing piece 8 is release conditions when leaving from lock groove 9, returning to mounting hole 4.

As shown in figure 4, in locking process, after briquetting 6 is under pressure, closing piece 8 is with briquetting 6 to the first guide pad 12 Direction movement, the effect through 12 inclined-plane of the first guide pad is mobile to access road 14, enters the first guide pad from access road 14 12 and second between guide pad 13, and after the pressure that briquetting 6 is subject to disappears, the spring 7 for generating deformation can generate anti-briquetting 6 To thrust, closing piece 8 is stuck in the first guide pad 12 with 6 counter motion of briquetting " in W " shape card slot 16.

As shown in figure 5, after briquetting 6 is under pressure, closing piece 8 is mobile with briquetting 6 during release, leaves first and lead It is arranged on block 12 " W " shape card slot 16, it moves, is fallen into " V " shape card slot 17 to 13 direction of the second guide pad, when the pressure being subject to After power disappears, briquetting 6 is moved backward by 7 thrust of spring, and drives 8 counter motion of closing piece, because " V " shape card slot 17 more connects Nearly exit passageway 15 leaves into exit passageway 15 from exit passageway 15.

It is connected between the closing piece 8 and conflict end 62 by connecting rod 11, described 11 one end of connecting rod connects closing piece 8, separately One end is equipped with globe joint 18, and the end 62 that contradicts is equipped with the spherical interface 19 being adapted to globe joint 18.Setting can make in this way Direction of the closing piece 8 in sliding is more preferably converted, so that sliding of the closing piece 8 in lock groove 9 is more flexible, conveniently.

It should be noted that the cross section of the connecting rod 11 is less than closing piece 8, and it may pass through two guiding in lock groove 9 Gap between block group 10.

The opening of lock groove 9 is communicated under shed 42, and can be passed through by closing piece 8.Setting can make closing piece 8 under in this way After opening 42 leaves mounting hole 4, entered in lock groove 9 by the opening of lock groove 9 communicated under shed 42.

The closing piece 8 is spherical shape.Spherical closing piece 8 and the contact area of guide pad group are smaller, can be reduced frictional force, more favorably In the sliding of closing piece 8.

Claims (5)

1. The vacuum pump 1. a kind of electric car brakes, including motor and the pump housing, the motor are connected with the pump housing, it is characterised in that: institute The junction for stating motor and the pump housing is respectively equipped with compatible connecting flange faces, one of them described connecting flange faces is circumferentially Several mounting holes are equidistantly equipped with, the axial ends of the mounting hole is respectively equipped with opening, wherein connecting close to connecting flange faces The opening for touching one end is under shed, and the opening of the other end is upper opening, is equipped with locking device, locking device packet in the mounting hole Include the spring being arranged in mounting hole, the briquetting contradicted with spring and the closing piece that is connected with briquetting, the briquetting packet The press-side of extended upper opening and the conflict end with spring interface touching are included, the cross-sectional area for contradicting end, which is greater than, above to be opened Mouthful, the under shed can be passed through by closing piece；Another described connecting flange faces co-operating latch means is equipped with can be by closing piece latching Lock groove.
2. The vacuum pump 2. electric car according to claim 1 brakes, it is characterised in that: opposite two inside the lock groove Guide pad group is respectively equipped on side wall, the spacing of the guide pad group of the two sidewalls is less than the diameter of closing piece, the guide pad group Including the first guide pad and the second guide pad for being arranged closer to locking trench bottom, first guide pad and the second guide pad Spacing can hold closing piece and pass through, and the first guide pad and adjacent two sidewalls form the access road and export logical that can hold that closing piece passes through Road, first guide pad are to the inclined inclined-plane in access road direction towards one end of locking channel opening, and the other end is equipped with can Block " W " shape card slot of closing piece, the second guide pad is equipped with towards one end of the first guide pad to be shifted to install and more with " W " shape card slot Close to the " V " shape card slot of exit passageway.
3. The vacuum pump 3. electric car according to claim 1 or 2 brakes, it is characterised in that: the closing piece and contradict end it Between be connected by connecting rod, described connecting rod one end connects closing piece, and the other end is equipped with globe joint, and the conflict end is equipped with and ball The spherical interface of shape connection adapters.
4. The vacuum pump 4. electric car according to claim 3 brakes, it is characterised in that: the locking channel opening and under shed It communicates, and can be passed through by closing piece.
5. The vacuum pump 5. electric car according to claim 4 brakes, it is characterised in that: the closing piece is spherical shape.