CN209142116U - A kind of EPB brake gear equipped with power loss parking defencive function - Google Patents
A kind of EPB brake gear equipped with power loss parking defencive function Download PDFInfo
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- CN209142116U CN209142116U CN201821301298.XU CN201821301298U CN209142116U CN 209142116 U CN209142116 U CN 209142116U CN 201821301298 U CN201821301298 U CN 201821301298U CN 209142116 U CN209142116 U CN 209142116U
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Abstract
The utility model discloses a kind of EPB brake gears equipped with power loss parking defencive function, including the ontology that brakes, the ontology that brakes includes caliper bracket, clamp caliper, motor and brake disc, the clamp caliper is equipped with the first friction plate, clamp caliper is slidably connected with caliper bracket, motor is fixed with clamp caliper, it further include failure parking structure, the parking structure that fails is between motor and brake disc, the parking structure that fails includes locking shell, sliding shoe and normally open solenoid valve, locking shell is fixed with clamp caliper, normally open solenoid valve is fixed with locking shell, it locks and is equipped with compressed spring in shell, sliding shoe is slidably connected with locking shell, the sliding shoe is equipped with push rod, push rod is equipped with locking slot, the telescopic rod and locking slot of the normally open solenoid valve are clamped.The utility model provides a kind of EPB brake gear equipped with power loss parking defencive function, and parking can be realized in the case where power fails, guarantees driver safety, and compact-sized, parking reliable performance.
Description
Technical field
The utility model relates to automobile brake technical field, more particularly, to a kind of equipped with power loss parking defencive function
EPB brake gear.
Background technique
Electronic brake system (EPB:Electrical Park Brake) passes through the longitudinal direction that is built in its computer
Acceleration transducer calculates the gradient, so as to calculating the sliding force that vehicle is generated due to gravity on the slope, computer expert
It crosses motor and brake force is applied to balance sliding force to rear-wheel, enable the vehicle to stop on the slope.When vehicle start, computer by from
The size of displacement sensor and throttle on clutch pedal needs the brake force that applies to calculate.Computer calculates engine automatically
The increase of tractive force, reduces brake force accordingly.When tractive force overcomes sliding force enough, computer driving motor releases braking,
To realize the smooth starting of vehicle.Existing EPB controls EPB execution unit by EPB ECU, realizes parking.Electronics parking brake is
EPB execution unit, electronics parking brake one of which working principle is identical as mechanical parking brake, is by cable pull rear wheel brake
Hoof is braked.It is another then be using electric mechanical clamp, be by motor clamping brake block generate reach control parking
Braking.But either EPB ECU, or by electric electronics parking brake, based on all needing electric power, otherwise cisco unity malfunction.Tradition
EPB breaks down when reporting an error in vehicle power fails (including vehicle high-tension battery and battery) or EPB ECU and related elements,
Parking cannot be realized on ramp, threaten driver safety.
Chinese patent application publication number CN206904118U, publication date are on May 26th, 2017, a kind of entitled " EPB
Afterwards in calipers assembly modified piston mounting means new structure ", disclose after a kind of EPB modified piston peace in calipers assembly
The new structure of dress mode while ensure that vehicle parking function by setting screw rod and nut, and has taken into account parking
Braking function is unaffected, while can realize quick assembling by observing marker groove.But the patent does not solve electric power
The parking function when system failure fails, not can guarantee driver safety.
Summary of the invention
The utility model in order to overcome the shortcomings in the prior art, provides a kind of EPB equipped with power loss parking defencive function
Brake gear can realize parking in the case where power fails, guarantee driver safety, and compact-sized, parking performance can
It leans on.
To achieve the goals above, the utility model uses following technical scheme:
A kind of EPB brake gear equipped with power loss parking defencive function, including brake ontology, brake ontology includes clamp branch
Frame, clamp caliper, motor and the brake disc fixed with wheel, the clamp caliper are equipped with the first friction plate, clamp caliper with
Caliper bracket is slidably connected, and motor is fixed with clamp caliper, further include failure parking structure, failure parking structure be located at motor and
Between brake disc, failure parking structure includes locking shell, sliding shoe and normally open solenoid valve, the locking shell and clamp caliper
Fixed, normally open solenoid valve is fixed with locking shell, and compressed spring, the sliding shoe and locking shell sliding are equipped in locking shell
Connection, compressed spring one end are connect with locking shell, and the other end is connect with sliding shoe;The sliding shoe is equipped with push rod, push rod
It is equipped with locking slot, the telescopic rod and locking slot of the normally open solenoid valve are clamped.By implementing above-mentioned technical proposal, may be implemented
The parking of EPB systematic electricity failure rear vehicle.Clamp caliper can be by the mounting structure for the parking structure that fails and position when processing
It is integrally machined in place, is not necessarily to additional other fixed structures.The failure parking structure is sufficiently sharp between motor and brake disc
With space, keep brake gear overall structure more compact.When power fails, normally open solenoid valve is opened, and compressed spring is by sliding shoe
Ejection, push rod contact caliper bracket, and clamp caliper retreats under the action of reaction force, the first friction plate pressure on clamp caliper
Tight brake disc realizes parking function.The brake ontology is existing common electronic card clamp-type brake, and motor opens when normal braking
It is dynamic, clamp caliper and caliper bracket are relatively moved, the first friction plate on clamp caliper compresses brake disc, realize braking,
Its structure is unrelated with the technical program protection content, therefore without repeating.
Preferably, the brake ontology further includes executing agency, the executing agency includes rotary screw rod and screw rod spiral shell
Mother, rotary screw rod are connect with motor output shaft, and rotary screw rod and feed screw nut are threadedly coupled;The caliper bracket include piston and
Rack body, piston are slidably connected with rack body, and feed screw nut is arranged in piston and is slidably connected with piston;It is set on piston
There are pressure block and the second friction plate;First friction plate and the second friction plate are located at the opposite two sides of brake disc.Pass through implementation
Above-mentioned technical proposal, the rotation of motor can drive feed screw nut mobile, hold out against piston after feed screw nut is mobile, piston driving the
Two friction plates compress brake disc, meanwhile, motor is driven the first friction plate by reaction force, reverse movement, clamp caliper therewith
Compress brake disc.Second friction plate and the first friction plate can provide mutually support when to compress brake disc, can reinforce
Braking effect.When power fails, normally open solenoid valve is opened, and push rod, which stretches out, compresses pressure block, and the second friction plate of piston driving moves
The tight brake disc of dynamic pressure;Meanwhile clamp caliper is moved backward by reaction force, drive the first friction plate compression brake disc, first
Friction plate and the second friction plate compress brake disc simultaneously, and power fails is made to keep parking effect more preferable, more stable.
Preferably, the push rod is equipped with briquetting, the pressure block is equipped with the cushion for contacting with briquetting.Pressure
Block can increase contact area, increase service life of equipment, and shock absorbing effect may be implemented in the cushion.
Preferably, the cushion material is rubber.
Preferably, first friction plate is equipped with multiple first counterbores, the first counterbore setting is in the first friction
On the face of piece and brake disc, the second friction plate is equipped with multiple second counterbores, and the second counterbore setting is in the second friction
On the face of piece and brake disc.The counterbore is arranged on the face of friction plate and brake disc, friction plate and brake disc pressure
When tight, the impurity on contact surface can be entered counterbore by the counterbore, guaranteed that friction plate comes into full contact with brake disc, guaranteed braking
Effect.When friction plate leaves brake disc, the vibration of itself when due to vehicle driving, impurity can be detached from naturally in counterbore.
Preferably, the piston is equipped with the first slippage slot, release link, release link and screw rod are equipped in the first slippage slot
Nut is fixed;Reset solenoid valve is equipped in the locking shell, reset solenoid valve is fixed with sliding shoe, and locking shell, which is equipped with, to be used
In the second slippage slot for allowing the telescopic rod of reset solenoid valve to pass through.By implementing above-mentioned technical proposal, failure parking may be implemented
The electronic reset of device.When needing to be reset, reset solenoid valve telescopic rod stretches out, and passes through outside the second slippage slot to locking shell.Electricity
Machine reversion, control feed screw nut retreat, and the release link on feed screw nut retreats therewith, contact reset solenoid valve telescopic rod and drive
Reset solenoid valve retreats, and reset solenoid valve drives sliding shoe to retreat, and when sliding shoe retreats in place, normally open solenoid valve is closed, often
Open electromagnetic valve telescopic rod stretches out, and is clamped with locking slot, resets and completes, and reset solenoid valve telescopic rod retracts.Reset solenoid valve is flexible
After bar retracts, when normal brake application, release link will not contact reset solenoid valve.
Preferably, the caliper bracket is equipped with multiple guide rods, guide rod is equipped with sliding block, and the sliding block and guide rod slide
Connection, sliding block are fixed with caliper body.The structure can make caliper bracket and being slidably connected for caliper body more steadily may be used
It leans on.
The beneficial effects of the utility model are: (1) can realize parking in power fails;(2) it when failure parking, uses
Double friction disc brakes, braking effect are more preferable;(3) electronic reset may be implemented in failure parking structure, and resetting power is motor, nothing
Other power sources need to be increased;(4) relative compact of parking structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the partial enlarged view in Fig. 1 at A.
In figure: brake ontology 1, caliper bracket 2, rack body 2.1, piston 2.2, the first slippage slot 2.2.1, clamp caliper
3, brake disc 4, the first friction plate 5, failure parking structure 6, sliding shoe 6.1, normally open solenoid valve 6.2, locking shell 6.3, second
Slippage slot 6.3.1, compressed spring 6.4, push rod 6.5, locking slot 6.5.1, executing agency 7, rotary screw rod 7.1, feed screw nut
7.2, the second friction plate 8, motor 9, briquetting 10, pressure block 11, cushion 12, release link 13, reset solenoid valve 14.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments:
As depicted in figs. 1 and 2, a kind of EPB brake gear equipped with power loss parking defencive function, including brake ontology 1, stop
Vehicle ontology 1 includes that caliper bracket 2, clamp caliper 3, motor 9 and the brake disc 4 fixed with wheel, the clamp caliper 3 are equipped with
First friction plate 5, clamp caliper 3 are slidably connected with caliper bracket 2, and motor 9 and clamp caliper 3 are fixed, further include failure parking
Structure 6, for the parking structure 6 that fails between motor 9 and brake disc 4, failure parking structure 6 includes locking shell 6.3, sliding shoe
6.1 and normally open solenoid valve 6.2, the locking shell 6.3 and clamp caliper 3 are fixed, normally open solenoid valve 6.2 and locking shell 6.3
It is fixed, compressed spring 6.4 is equipped in locking shell 6.3, the sliding shoe 6.1 is slidably connected with locking shell 6.3, compressed spring
6.4 one end are connect with locking shell 6.3, and the other end is connect with sliding shoe 6.1;The sliding shoe 6.1 is equipped with push rod 6.5, pushes away
Bar 6.5 is equipped with locking slot 6.5.1, and the telescopic rod and locking slot 6.5.1 of the normally open solenoid valve 6.2 are clamped.On implementing
Technical solution is stated, the parking of EPB systematic electricity failure rear vehicle may be implemented.Clamp caliper 3 can be by parking of failing when processing
The mounting structure of structure 6 and position are integrally machined in place, are not necessarily to additional other fixed structures.Failure parking structure 6 is located at motor 9
Between brake disc 4, space is made full use of, keeps brake gear overall structure more compact.When power fails, normally open solenoid valve
6.2 open, and compressed spring 6.4 ejects sliding shoe 6.1, and push rod 6.5 contacts caliper bracket 2, and clamp caliper 3 is in reaction force
Effect is lower to be retreated, and the first friction plate 5 on clamp caliper 3 compresses brake disc 4, realizes parking function.The brake ontology 1 is existing
There is a common electronic card clamp-type brake, motor 9 starts when normal braking, relatively moves clamp caliper 3 and caliper bracket 2, card
The first friction plate 5 clamped on caliper 3 compresses brake disc 4, realizes braking, and other structures are unrelated with the technical program protection content,
Therefore without repeating.
Stating brake ontology 1 further includes executing agency 7, and the executing agency 7 includes rotary screw rod 7.1 and feed screw nut 7.2,
Rotary screw rod 7.1 and motor 9 export axis connection, and rotary screw rod 7.1 and feed screw nut 7.2 are threadedly coupled;The caliper bracket 2 is wrapped
Piston 2.2 and rack body 2.1 are included, piston 2.2 is slidably connected with rack body 2.1, and feed screw nut 7.2 is arranged in piston 2.2
It is interior and be slidably connected with piston 2.2;Piston 2.2 is equipped with pressure block 11 and the second friction plate 8;First friction plate 5 and
Two friction plates 8 are located at the opposite two sides of brake disc 4.By implementing above-mentioned technical proposal, the rotation of motor 9 can drive screw rod spiral shell
Mother 7.2 is mobile, and piston 2.2 is held out against after feed screw nut 7.2 is mobile, and piston 2.2 drives the second friction plate 8 to compress brake disc 4, together
When, motor 9 is driven the first friction plate 5 to compress brake disc 4 therewith by reaction force, reverse movement, clamp caliper 3.Described
Two friction plates 8 and the first friction plate 5 can provide mutually support when to compress brake disc 4, can reinforce braking effect.Work as electric power
When failure, normally open solenoid valve 6.2 is opened, and push rod 6.5, which stretches out, compresses pressure block 11, and piston 2.2 drives the mobile pressure of the second friction plate 8
Tight brake disc 4;Meanwhile clamp caliper 3 is moved backward by reaction force, drive the first friction plate 5 compression brake disc 4, first
Friction plate 5 and the second friction plate 8 compress brake disc 4 simultaneously, and power fails is made to keep parking effect more preferable, more stable.
The push rod 6.5 is equipped with briquetting 10, and the pressure block 11 is equipped with the cushion 12 for contacting with briquetting 10.
Briquetting 10 can increase contact area, increase service life of equipment, and shock absorbing effect may be implemented in the cushion 12.
12 material of cushion is rubber.
First friction plate 5 is equipped with multiple first counterbores, and the first counterbore setting is in the first friction plate and braking
On the face that disk 4 contacts, the second friction plate 8 is equipped with multiple second counterbores, and the second counterbore setting is in the second friction plate and system
On the face that Moving plate 4 contacts.The counterbore is arranged on the face that friction plate is contacted with brake disc 4, and friction plate and brake disc 4 compress
When, the impurity on contact surface can be entered counterbore by the counterbore, guaranteed that friction plate comes into full contact with brake disc 4, guaranteed braking
Effect.When friction plate leaves brake disc 4, the vibration of itself when due to vehicle driving, impurity can be detached from naturally in counterbore.
The piston 2.2, which is equipped in the first slippage slot 2.2.1, the first slippage slot 2.2.1, is equipped with release link 13, release link
13 is fixed with feed screw nut 7.2;Reset solenoid valve 14, reset solenoid valve 14 and sliding shoe 6.1 are equipped in the locking shell 6.3
Fixed, locking shell 6.3 is equipped with the second slippage slot 6.3.1 for allowing the telescopic rod of reset solenoid valve 14 to pass through.Pass through reality
Above-mentioned technical proposal is applied, the electronic reset of failure parking device may be implemented.When needing to be reset, 14 telescopic rod of reset solenoid valve is stretched
Out, it passes through outside the second slippage slot 6.3.1 to locking shell 6.3.Motor 9 inverts, and control feed screw nut 7.2 retreats, feed screw nut
Release link 13 on 7.2 retreats therewith, contacts 14 telescopic rod of reset solenoid valve and 14 valve of reset solenoid valve is driven to retreat, reset electricity
Magnet valve 14 drives sliding shoe 6.1 to retreat, and when sliding shoe 6.1 retreats in place, normally open solenoid valve 6.2 is closed, normally open solenoid valve 6.2
Telescopic rod stretches out, and is clamped with locking slot 6.5.1, resets and completes, and 14 telescopic rod of reset solenoid valve retracts.Reset solenoid valve 14 is flexible
After bar retracts, when normal brake application, release link 13 will not contact reset solenoid valve 14.
The caliper bracket 2 is equipped with multiple guide rods, and guide rod is equipped with sliding block, and the sliding block is slidably connected with guide rod, sliding
Block and caliper body 2.1 are fixed.The structure can make caliper bracket 2 and being slidably connected for caliper body 2.1 more steadily may be used
It leans on.
The beneficial effects of the utility model are: can realize parking in power fails;When failure parking, using double frictions
Piece braking, braking effect are more preferable;Electronic reset may be implemented in failure parking structure, and resetting power is motor, without increasing it
Its power source;The relative compact of parking structure.
Claims (5)
1. a kind of EPB brake gear equipped with power loss parking defencive function, including brake ontology, brake ontology includes clamp branch
Frame, clamp caliper, motor and the brake disc fixed with wheel, the clamp caliper are equipped with the first friction plate, clamp caliper with
Caliper bracket is slidably connected, and motor is fixed with clamp caliper, characterized in that further includes failure parking structure, fail parking structure
Between motor and brake disc, failure parking structure includes locking shell, sliding shoe and normally open solenoid valve, the locking shell
It is fixed with clamp caliper, normally open solenoid valve is fixed with locking shell, and compressed spring, the sliding shoe and lock are equipped in locking shell
Tight shell is slidably connected, and compressed spring one end is connect with locking shell, and the other end is connect with sliding shoe;The sliding shoe is equipped with
Push rod, push rod are equipped with locking slot, and the telescopic rod and locking slot of the normally open solenoid valve are clamped;The caliper bracket is equipped with more
A guide rod, guide rod are equipped with sliding block, and the sliding block is slidably connected with guide rod, and sliding block is fixed with caliper body.
2. a kind of EPB brake gear equipped with power loss parking defencive function according to claim 1, characterized in that described
The ontology that brakes further includes executing agency, and the executing agency includes rotary screw rod and feed screw nut, and rotary screw rod and motor export
Axis connection, rotary screw rod and feed screw nut are threadedly coupled;The caliper bracket includes piston and rack body, piston and bracket sheet
Body is slidably connected, and feed screw nut is arranged in piston and is slidably connected with piston;Piston is equipped with pressure block and the second friction plate;
First friction plate and the second friction plate are located at the opposite two sides of brake disc.
3. a kind of EPB brake gear equipped with power loss parking defencive function according to claim 2, characterized in that described
Push rod is equipped with briquetting, and the pressure block is equipped with the cushion for contacting with briquetting.
4. a kind of EPB brake gear equipped with power loss parking defencive function according to claim 3, characterized in that described
Cushion material is rubber.
5. a kind of EPB brake gear equipped with power loss parking defencive function, feature according to Claims 2 or 3 or 4
It is that the piston is equipped with the first slippage slot, is equipped with release link in the first slippage slot, release link is fixed with feed screw nut;It is described
It locks and is equipped with reset solenoid valve in shell, reset solenoid valve is fixed with sliding shoe, and locking shell, which is equipped with, resets electromagnetism for allowing
The second slippage slot that the telescopic rod of valve passes through.
Priority Applications (1)
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CN201821301298.XU CN209142116U (en) | 2018-08-13 | 2018-08-13 | A kind of EPB brake gear equipped with power loss parking defencive function |
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CN201821301298.XU CN209142116U (en) | 2018-08-13 | 2018-08-13 | A kind of EPB brake gear equipped with power loss parking defencive function |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109050507A (en) * | 2018-08-13 | 2018-12-21 | 浙江零跑科技有限公司 | A kind of EPB brake gear equipped with power loss parking defencive function |
CN111483449A (en) * | 2020-04-14 | 2020-08-04 | 北京天润海图科技有限公司 | Rail car and rail car acceleration controllable braking device and method |
CN111963679A (en) * | 2020-09-04 | 2020-11-20 | 泰州星云动力有限公司 | Semi-automatic power-off parking mechanism |
CN115158247A (en) * | 2021-04-07 | 2022-10-11 | 北汽福田汽车股份有限公司 | Brake caliper, hydraulic brake system and vehicle |
-
2018
- 2018-08-13 CN CN201821301298.XU patent/CN209142116U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109050507A (en) * | 2018-08-13 | 2018-12-21 | 浙江零跑科技有限公司 | A kind of EPB brake gear equipped with power loss parking defencive function |
CN111483449A (en) * | 2020-04-14 | 2020-08-04 | 北京天润海图科技有限公司 | Rail car and rail car acceleration controllable braking device and method |
CN111483449B (en) * | 2020-04-14 | 2021-11-05 | 北京天润海图科技有限公司 | Rail car and rail car acceleration controllable braking device and method |
CN111963679A (en) * | 2020-09-04 | 2020-11-20 | 泰州星云动力有限公司 | Semi-automatic power-off parking mechanism |
CN115158247A (en) * | 2021-04-07 | 2022-10-11 | 北汽福田汽车股份有限公司 | Brake caliper, hydraulic brake system and vehicle |
CN115158247B (en) * | 2021-04-07 | 2023-09-12 | 北汽福田汽车股份有限公司 | Brake caliper, hydraulic brake system and vehicle |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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