CN205292614U - Automobile -used long stroke electric vacuum pump of horizontal opposition - Google Patents
Automobile -used long stroke electric vacuum pump of horizontal opposition Download PDFInfo
- Publication number
- CN205292614U CN205292614U CN201620048783.5U CN201620048783U CN205292614U CN 205292614 U CN205292614 U CN 205292614U CN 201620048783 U CN201620048783 U CN 201620048783U CN 205292614 U CN205292614 U CN 205292614U
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- pump
- piston
- vacuum
- direct current
- automobile
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Abstract
The utility model relates to an automobile -used long stroke electric vacuum pump of horizontal opposition, on the port at its structure both ends about the pump body respectively the sealing -in have an end cover be provided with the air flue on the end cover the inboard of end cover is provided with the piston pump, two on the end cover the position of piston pump is relative, be equipped with two openings at pump body lateral wall, the sealing -in has direct current motor on one of them opening, and the sealing -in has exhaust silencer on another opening, direct current motor's main shaft stretches into in the inner chamber of the pump body connect the eccentric balance weight subassembly on direct current motor's the main shaft the connecting rod that connects two reversion to stretch out on the eccentric balance weight subassembly, connecting rod and one piston assembly in the piston pump is connected. The utility model discloses the vacuum that can ensure to brake vacuum booster satisfies the brake performance of car, can realize no matter the car uses any power supply, all can provide reliable vacuum source, make braking vacuum booster be in operating condition constantly.
Description
Technical field
This utility model relates to a kind of vacuum pump, specifically a kind of horizontally-opposed automobile-used Long travel electric vacuum pump.
Background technology
Electric automobile, as a kind of ideal " zero-emission " vehicle energy-conservation, free of contamination, is just being increasingly subject to common concern and the attention of countries in the world. but due to the factor of technical restriction and present situation, the China's various researchs to electric automobile, the overwhelming majority can only reequip on the basis of existing internal-combustion engines vehicle. most of car many employings vacuum servo servo brake system, makes manpower and power and uses. the brakes of the small-sized gas car of conventional gasoline machine, the vacuum source of its vacuum booster unit comes from motor intake manifold, for the pure electric vehicle converted by tradition vehicle or fuel cell car, after engine assembly is removed, brakes loses vacuum servo function owing to not having vacuum power source, only produced by manpower, brake force cannot meet the needs of service brake, therefore, do not changing on the basis of the original brakes of automobile (including vacuum booster), in order to meet the job demand of brakes vacuum, it is accomplished by the electromotor of a disengaging automobile and a vacuum source that enough pressure can be produced.
In Motor Vehicle Braking Procedure, the time is a very important factor. For adapt to automobile product needs, in the suction performance index of vacuum pump, newly have employed startup time response and recovery time two New Sets of characteristic. Wherein, start time response and refer under the premise of a constant volume, make the vacuum in volume be arrived the time required for the upper limit vacuum set by standard pressure. Recovery time, characteristic was to instigate the vacuum in volume to be arrived the time required for higher limit vacuum by the lower limit set. When automobile brake, the vacuum in vacuum booster can be subject to the impact of severity of braking and dramatic decrease. If dropped to below working range permissible value, will feel that pedal is sent out heavy, also be a kind of infringement to vacuum booster under this operating mode. It is therefore desirable to vacuum pump can make the vacuum in vacuum booster return in normal working range permissible value within the time short as far as possible, directly cause arrival upper limit vacuum, here it is recovery time characteristic requirement.
Meeting the requirement of these characteristics it is necessary to improve the capacity of vacuum pump, feasible mode is the volume of intensifying cylinder, but the volume of vacuum pump so can be made to increase, and takies this with regard to narrow and small engine compartment space, thus less adapts to the installation requirement of existing vehicle.
Utility model content
The purpose of this utility model is just to provide a kind of horizontally-opposed automobile-used Long travel electric vacuum pump, with solve existing vacuum pump not easily meet new startup time response and recovery time characteristic requirements problem.
This utility model is achieved in that a kind of horizontally-opposed automobile-used Long travel electric vacuum pump, the port at two ends, pump housing left and right is sealed with end cap respectively, described end cap is provided with air flue, the inner side of described end cap is provided with piston pump, and the position of the described piston pump on two described end caps is relative; It is provided with two openings at pump housing sidewall, wherein an opening is sealed with direct current generator, another opening is sealed with muffler; The main shaft of described direct current generator extend in the inner chamber of the described pump housing, the main shaft of described direct current generator is connected to eccentrically mounted weight assembly, being connected to two connecting rods reversely stretched out on described eccentrically mounted weight assembly, a connecting rod and the piston component in a described piston pump are connected.
Described piston pump includes cylinder body and the piston component being arranged in described cylinder body; Described piston component includes piston only, gland, leather cup and single-phase valve block.
This utility model utilizes the connecting rod of two complementary bendings on the same eccentrically mounted weight assembly of DC motor Driver, the connecting rod bent promote opposed two piston components at grade to do Long travel motion in two piston pumps, thus producing vacuum. Owing to two piston pumps are oppositely arranged, and driven reciprocating motion of the pistons by a motor, therefore, volume of the present utility model is reduced, when piston area is determined, by oversize piston stroke so that volume and the capacity of piston pump are correspondingly improved.
This utility model utilizes vehicle power to provide power, eccentrically mounted weight assembly and connecting rod is driven to make reciprocating motion of the pistons by direct current generator, thus producing vacuum, hydraulic brake system for various vehicles such as electric automobile, hybrid power, electric space vehicles provides reliable vacuum source, thus being effectively improved the braking ability of car load.
This utility model can ensure that the vacuum of vacuum booster, meets the braking ability of automobile; Can realize no matter automobile uses any power source, reliable vacuum source all can be provided, make the vacuum booster moment in running order.
Long service life of the present utility model, installation site and mounting means are all comparatively flexible. Owing to having the characteristic being effectively reduced CO2 emission and fuel oil consumption so that electric vacuum pump becomes the powerful main separation substituting oil-sealed rotary pump.
This utility model can provide the various vacuum needed for vehicle, is particularly well-suited to electric vehicle, motor vehicle driven by mixed power and diesel vehicle. Once petrol engine cannot provide enough vacuum, electric vacuum pump can be connected in time, continues to provide vacuum, with ensure brake booster, train brake properly functioning. This utility model can as the unique vacuum source in electric vehicle service life. Electric vacuum pump, by providing vacuum incessantly, effectively reduces the CO2 emission of internal combustion engine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of piston component.
Fig. 3 is surface structure schematic diagram of the present utility model.
In figure: 1, direct current generator, 2, the pump housing, 3, end cap, 4, piston component, 5, connecting rod, 6, cylinder barrel, 7, muffler, 8, exhaust check valve, 9, eccentrically mounted weight assembly, 10, piston only, 11, leather cup, 12, check valve sheet, 13, gland, 14, vacuum tube.
Detailed description of the invention
As it is shown in figure 1, the pump housing 2 is by strengthening the shell structure with straight-through inner chamber that nylon injection-molding shapes. The port at the left and right two ends of the pump housing 2 is sealed with end cap 3 respectively, each end cap 3 is provided with the air flue of air-breathing, a piston pump is installed in the inner side of each end cap 3; The position of the piston pump on two end caps 3 is relative. Described piston pump includes cylinder body 6 and the piston component 4 being arranged in cylinder body. As in figure 2 it is shown, piston component includes piston only 10, gland 13, leather cup 11 and single-phase valve block 12.
In Fig. 1, the sidewall at the pump housing 2 is provided with two relative openings, is sealed with direct current generator 1 wherein, is sealed with muffler 7 on another opening on an opening. The main shaft of direct current generator 1 extend in the inner chamber of the pump housing 2. The main shaft of direct current generator 1 is connected to eccentrically mounted weight assembly 9, eccentrically mounted weight assembly 6 is connected to two connecting rods reversely stretched out 5. Connecting rod 5 is the body of rod of bending, and two connecting rods 5 form the state of complementary bending on eccentrically mounted weight assembly 9. Two connecting rods 5 are each connected with the piston component 4 in a piston pump, to drive piston component 4 to move back and forth in cylinder body 6. Muffler 7 is built-in with silencing cotton, to reduce exhaust noise. The air vent of muffler 7 is provided with exhaust check valve 8, enters in the pump housing with waterproof.
This utility model is the horizontally-opposed design of double-piston, adopts the connecting rod 5 of two complementary bendings, through the driving of direct current generator 1 and eccentrically mounted weight assembly 9, promotes opposed two piston components 4 at grade to do Long travel motion, thus producing vacuum.
When direct current generator 1 works, due to the effect of eccentrically mounted weight assembly 9, the piston 4 driven through connecting rod is extended and retracted, forms spatial volume change in cylinder barrel 6. Under the effect of check valve sheet 8, the gas in the vacuum system that vacuum tube 14 connects is sucked by the change of this gas volume, via the air flue in two end caps 3, sucks in the pump housing 2, enters in air then through exhaust check valve 8.
Power of the present utility model is that a direct current generator 1 drives, and the energy of direct current generator is from the 12V storage battery of automobile. As long as automobile can start, direct current generator 1 just can work. The outfan of direct current generator directly drives piston pump, reduces the volume of vacuum pump, reduces rotational noise.
Claims (3)
1. a horizontally-opposed automobile-used Long travel electric vacuum pump, it is characterized in that, the port at two ends, pump housing left and right is sealed with end cap respectively, described end cap is provided with air flue, the inner side of described end cap is provided with piston pump, and the position of the described piston pump on two described end caps is relative; It is provided with two openings at pump housing sidewall, wherein an opening is sealed with direct current generator, another opening is sealed with muffler; The main shaft of described direct current generator extend in the inner chamber of the described pump housing, the main shaft of described direct current generator is connected to eccentrically mounted weight assembly, being connected to two connecting rods reversely stretched out on described eccentrically mounted weight assembly, a connecting rod and the piston component in a described piston pump are connected.
2. horizontally-opposed automobile-used Long travel electric vacuum pump according to claim 1, is characterized in that, described piston pump includes cylinder body and the piston component being arranged in described cylinder body; Described piston component includes piston only, gland, leather cup and single-phase valve block.
3. horizontally-opposed automobile-used Long travel electric vacuum pump according to claim 1, is characterized in that, the described pump housing is by strengthening nylon injection-molding shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048783.5U CN205292614U (en) | 2016-01-19 | 2016-01-19 | Automobile -used long stroke electric vacuum pump of horizontal opposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048783.5U CN205292614U (en) | 2016-01-19 | 2016-01-19 | Automobile -used long stroke electric vacuum pump of horizontal opposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205292614U true CN205292614U (en) | 2016-06-08 |
Family
ID=56429650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620048783.5U Active CN205292614U (en) | 2016-01-19 | 2016-01-19 | Automobile -used long stroke electric vacuum pump of horizontal opposition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205292614U (en) |
-
2016
- 2016-01-19 CN CN201620048783.5U patent/CN205292614U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |