CN214698080U

CN214698080U - Water jacket partition plate, engine and vehicle

Info

Publication number: CN214698080U
Application number: CN202120441879.9U
Authority: CN
Inventors: 郑登珂; 姜广梅; 李炳; 胡江涛; 李明雪
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-11-12
Anticipated expiration: 2031-03-01

Abstract

The utility model is suitable for an automobile engine technical field, the utility model provides a water jacket baffle, engine and vehicle, this water jacket baffle sets up in engine water jacket, engine water jacket includes water jacket inner wall and water jacket outer wall, the water jacket baffle is including the first plate somatic part and the second plate somatic part of connection, first plate somatic part corresponds with the first half of axis in cylinder hole, the second plate somatic part corresponds with the axis lower half in cylinder hole, the surface of first plate somatic part is whole and the laminating of water jacket outer wall, the surface of second plate somatic part is at least partly laminated with the water jacket outer wall, the internal surface of first plate somatic part forms first space with the water jacket inner wall, the internal surface of second plate somatic part and the second space that the water jacket inner wall formed, and first space is greater than the second space. The utility model provides a water jacket baffle, engine and vehicle optimizes through the structure to the baffle, under the performance condition that satisfies reduction cylinder jacket temperature, has reduced the cost, is fit for mass production.

Description

Water jacket partition plate, engine and vehicle

Technical Field

The utility model belongs to the technical field of automobile engine, especially, relate to a water jacket baffle, engine and vehicle.

Background

Can give out a large amount of heats during engine combustion expansion, too much heat can lead to the cylinder hole to warp too big, faults such as scuffing of cylinder, consequently set up engine cylinder body water jacket around the cylinder hole of engine, the heat of partial combustion release can be taken away to the coolant liquid in the water jacket, thereby reduce the temperature around the cylinder hole, however in the engine actual operation in-process, the temperature distribution of water jacket along cylinder hole axis direction is not even, at the acting stroke, the upper portion temperature of cylinder hole sharply rises, and lower part temperature is relatively lower, make to have the temperature difference along cylinder hole axial, this temperature difference has increased the friction of piston, the deflection in cylinder hole has been increaseed, and then influence the burning and the emission of engine. It is therefore important to reduce the temperature difference in the axial direction of the engine cylinder bore.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a water jacket baffle, engine and vehicle, optimize through the structure to the baffle, satisfy under the performance condition that reduces the cylinder jacket temperature, reduced the cost, be fit for mass production.

The technical scheme of the utility model is that: a water jacket baffle is arranged in an engine water jacket, the engine water jacket comprises a water jacket inner wall and a water jacket outer wall, the water jacket baffle comprises a first plate body part and a second plate body part which are connected, the first plate body part corresponds to the upper half part of the axis of a cylinder hole, the second plate body part corresponds to the lower half part of the axis of the cylinder hole, the outer surface of the first plate body part is completely attached to the water jacket outer wall, at least part of the outer surface of the second plate body part is attached to the water jacket outer wall, the inner surface of the first plate body part forms a first space with the water jacket inner wall, the inner surface of the second plate body part forms a second space with the water jacket inner wall, and the first space is larger than the second space.

Optionally, the contour shape of the water jacket partition is matched with the contour shape of the engine water jacket, and the width of the engine water jacket and the width of the first space are decreased gradually along the cylinder hole axis and in the direction away from the cylinder head.

Optionally, a boss is formed on the inner surface of the joint of the first plate body part and the second plate body part, and a plurality of limiting protrusions are arranged on the boss.

Optionally, the outer surface of the second plate body portion is at least partially recessed, and a plurality of reinforcing ribs are formed in the recessed region, and the plurality of reinforcing ribs are connected in a staggered manner.

Optionally, the water jacket partition plate further comprises a coolant outlet, the coolant outlet is located on the first plate body, and the position of the coolant outlet is not lower than the height of the joint of the first plate body and the second plate body.

Optionally, the water jacket partition plate further comprises a coolant inlet, and the coolant inlet and the coolant outlet are diagonally arranged.

Optionally, an end surface of the first plate body portion remote from the second plate body portion is lower than a top end surface of the cylinder bore.

Optionally, the first plate body portion and the second plate body portion are integrally formed.

The utility model also provides an engine installs foretell water jacket baffle in the engine water jacket.

The utility model also provides a vehicle, including foretell engine.

The utility model provides a water jacket baffle, engine and vehicle compares with prior art, through having set up the water jacket baffle at the engine water jacket for the space in the engine water jacket diminishes, injects under the unchangeable prerequisite of cooling liquid in the engine water jacket in guaranteeing the unit interval, has promoted the velocity of flow of cooling liquid in the engine water jacket, and then improves the radiating effect.

Meanwhile, the first space corresponds to the upper half part of the axis of the cylinder hole, the second space corresponds to the lower half part of the axis of the cylinder hole, the first space is larger than the second space, when cooling liquid flows through the engine water jacket, the amount of the cooling liquid in the first space is larger than that in the second space, and therefore the cooling liquid in the first space is increased, the heat dissipation effect of the upper half part of the axis of the cylinder hole is enhanced, the temperature difference on the axis of the cylinder hole can be reduced, and the uniformity of the temperature around the cylinder hole is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a water jacket baffle according to an embodiment of the present invention;

FIG. 2 is a bottom view of FIG. 1;

fig. 3 is a schematic structural view of a water jacket partition provided in an engine water jacket according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a sectional view at B-B in fig. 3.

In the figure, 11-the outer wall of the water jacket, 12-the inner wall of the water jacket, 2-the water jacket partition, 21-the first plate body portion, 22-the second plate body portion, 3-the first space, 4-the second space, 5-the boss, 51-the limiting projection, 6-the recessed area, 61-the reinforcing rib, 7-the coolant outlet, 8-the coolant inlet, 9-the water pipe, d-the width of the first space, and h-the height difference between the end face of the first plate body portion away from the second plate body portion and the top end face of the cylinder bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed, installed, connected, or indirectly disposed and connected through intervening components and intervening structures.

In addition, in the embodiments of the present invention, if there are orientations or positional relationships indicated by "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., based on the orientations or positional relationships shown in the drawings or the conventional placement state or use state, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated structure, feature, device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.

As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a water jacket baffle 2, water jacket baffle 2 set up in the engine water jacket, owing to set up water jacket baffle 2 at the engine water jacket, so lead to the spatial volume of engine water jacket to diminish, inject into the unchangeable prerequisite of cooling liquid in the engine water jacket in guaranteeing the unit interval under, promoted the velocity of flow of cooling liquid in the engine water jacket, and then improved the radiating effect.

Wherein the engine water jacket comprises a water jacket inner wall 12 and a water jacket outer wall 11, the water jacket partition plate 2 comprises a first plate body part 21 and a second plate body part 22 which are connected, the first plate body part 21 corresponds to the upper half part of the axis of the cylinder hole, the second plate body part 22 corresponds to the lower half part of the axis of the cylinder hole, see fig. 3 to 5, the outer surface of the first plate body part 21 is completely attached to the water jacket outer wall 11, the outer surface of the second plate body part 22 is at least partially attached to the water jacket outer wall 11, the inner surface of the first plate body part 21 forms a first space 3 with the water jacket inner wall 12, and the inner surface of the second plate body part 22 forms a second space 4 with the water jacket inner wall 12, because the temperature change of the upper half part of the cylinder hole is large and the temperature change of the lower half part of the cylinder hole is relatively small in the axial direction of the engine water jacket during the actual operation of the engine, so that the temperature difference exists in the axial direction, through making first space 3 be greater than second space 4, increase the volume of engine water jacket corresponding cylinder hole upper half portion coolant liquid to the radiating effect to cylinder hole axis upper half portion has been strengthened, and combines the velocity of flow promotion of above-mentioned coolant liquid, and then has improved the radiating efficiency to the cylinder hole.

In a further embodiment, the contour shape of the water jacket partition 2 can be adapted to the contour shape of the engine water jacket, i.e. the first plate body portion 21 and the second plate body portion 22 are both adapted to the contour shape of the engine water jacket, and the width of the engine water jacket and the width of the first space 3 are decreased in a direction along the cylinder bore axis and away from the cylinder head (the width of the engine water jacket and the width d of the first space 3 refer to a distance in a direction perpendicular to the cylinder bore axis). The width of the engine water jacket is gradually reduced, and the casting process is reduced. Meanwhile, since the outer surface of the first plate body portion 21 is entirely attached to the water jacket outer wall 11, the width d of the first space 3 formed by the inner surface of the first plate body portion 21 and the water jacket inner wall 12 is correspondingly decreased, and the convenience of assembly is improved.

In a further embodiment, as shown in fig. 1 and 5, a boss 5 may be formed on an inner surface of a joint of the first plate body portion 21 and the second plate body portion 22 to enhance strength between the joint of the first plate body portion 21 and the second plate body portion 22, wherein a plurality of limiting protrusions 51 may be provided on the boss 5, the plurality of limiting protrusions 51 are arranged at intervals, and the fixing of the water jacket partition 2 and the cylinder bore is achieved by providing the limiting protrusions 51. When the limiting protrusion 51 is not provided, the wall thickness of the whole water jacket partition plate 2 needs to be controlled, and when a certain part of the wall thickness deviates, the water jacket partition plate 2 cannot be assembled into the engine water jacket, so that the assembly difficulty factor becomes large. However, in the present embodiment, the water jacket partition 2 is fixedly connected to the cylinder bore by using the limiting protrusion 51, so that only the size of the limiting protrusion 51 needs to be controlled, and when the size of the limiting protrusion 51 meets the requirement, the water jacket partition 2 can be ensured to be assembled into the engine water jacket, and then the assembly difficulty coefficient is reduced, so that the fault tolerance of the product is improved.

In a further embodiment, since the second plate body portion 22 forms the second space 4 with the water jacket inner wall 12 to be smaller, the wall thickness of the corresponding second plate body portion 22 is larger than that of the first plate body portion 21, and in order to reduce the weight and achieve the optimum effect in terms of cost, referring to fig. 1, 2, 4 and 5, the outer surface of the second plate body portion 22 may be at least partially recessed inward to reduce the weight, and a plurality of reinforcing ribs 61 are formed in the recessed region 6, i.e., the reinforcing ribs 61 are avoided and retained while controlling the outer surface of the second plate body portion 22 to be recessed inward. Wherein, a plurality of reinforcing ribs 61 can be connected in a staggered manner, for example, a plurality of reinforcing ribs 61 are crossed to form a grid shape, so as to ensure the structural strength of the second plate body part 22 at the corresponding recessed area 6.

In practical application, referring to fig. 1 and 2, the recessed area 6 on the outer surface of the second plate body portion 22 can be configured to penetrate through the structure of the second plate body, i.e. to form a hollow structure, which further plays a role in reducing the weight of the partition board,

in a further embodiment, as shown in fig. 1 and 5, the water jacket baffle 2 may further include a coolant outlet port 7, the coolant outlet port may be located on the first plate body portion 21, and the coolant outlet port 7 may be located at a position not lower than the height of the junction of the first plate body portion 21 and the second plate body. By using the principle that one wooden barrel and the shortest one determine the capacity of the wooden barrel, a large amount of cooling liquid can be reserved in the first space 3, and the cooling effect on the upper half part of the axis of the cylinder hole is further improved. The coolant outlet 7 is connected with a water pipe 9, and the coolant flowing out of the water jacket of the engine is guided back to the cooling system through the water pipe 9.

In a further embodiment, as shown in fig. 1 and 2, the water jacket partition 2 may further include a coolant inlet 8, and the coolant inlet 8 is located diagonally to the coolant outlet 7. So set up for the coolant liquid in the engine water jacket has the longest coolant liquid flow, and then makes the pressure differential between coolant liquid water inlet 8 and the coolant liquid delivery port 7 the biggest, is of value to the flow of coolant liquid.

In a further embodiment, the end face of the first plate body portion 21 remote from the second plate body portion 22 is lower than the top end face of the cylinder bore. In this way, the water jacket partition plate 2 is accommodated in the engine water jacket as much as possible without affecting the assembly of the cylinder head, thereby maximizing the cooling effect.

Specifically, referring to fig. 4 and 5, the height difference h between the end surface of the first plate body portion 21 remote from the second plate body portion 22 and the top end surface of the cylinder bore is 1 to 5 mm.

In a further embodiment, the first plate portion 21 and the second plate portion 22 may be integrally formed, and have high structural strength, and improve convenience of assembly.

In further embodiments, the water jacket partition 2 may be a plastic or alloy piece. The material of the water jacket partition plate 2 can be determined according to the working environment and working condition of the engine, and the water jacket partition plate 2 needs to be ensured to have temperature resistance and corrosion resistance, so that the water jacket partition plate 2 can reliably work.

The utility model also provides an engine installs foretell water jacket baffle 2 in the engine water jacket. The engine solves the problem that the temperature difference exists in the axial direction of the cylinder hole in the prior art, and the uniformity of the temperature around the cylinder hole is ensured.

The utility model also provides a vehicle, including foretell engine.

The embodiment of the utility model provides a water jacket baffle 2, engine and vehicle compares with prior art, through having set up water jacket baffle 2 at the engine water jacket for the space in the engine water jacket diminishes, injects under the unchangeable prerequisite of cooling liquid in the engine water jacket in guaranteeing the unit interval, has promoted the velocity of flow of cooling liquid in the engine water jacket, and then improves the radiating effect.

Meanwhile, the first space 3 corresponds to the upper half part of the axis of the cylinder hole, the second space 4 corresponds to the lower half part of the axis of the cylinder hole, the first space 3 is larger than the second space 4, when cooling liquid flows through the engine water jacket, the amount of the cooling liquid in the first space 3 is larger than that in the second space 4, and therefore, the amount of the cooling liquid in the first space 3 is increased, the heat dissipation effect of the upper half part of the axis of the cylinder hole is enhanced, the temperature difference on the axis of the cylinder hole can be reduced, and the uniformity of the temperature around the cylinder hole is guaranteed.

And the water jacket clapboard 2 has simple structure, simple and convenient assembly, low manufacturing cost and good economy, and is suitable for mass production.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A water jacket baffle, characterized in that the water jacket baffle is provided in an engine water jacket, the engine water jacket comprises a water jacket inner wall and a water jacket outer wall, the water jacket baffle comprises a first plate body portion and a second plate body portion which are connected, the first plate body portion corresponds to the upper half of the axis of a cylinder bore, the second plate body portion corresponds to the lower half of the axis of the cylinder bore, the outer surface of the first plate body portion is entirely attached to the water jacket outer wall, the outer surface of the second plate body portion is at least partially attached to the water jacket outer wall, the inner surface of the first plate body portion forms a first space with the water jacket inner wall, the inner surface of the second plate body portion forms a second space with the water jacket inner wall, and the first space is larger than the second space.

2. A water jacket baffle according to claim 1, wherein the contour of the water jacket baffle is adapted to the contour of the engine water jacket, the width of the engine water jacket and the width of the first space decreasing in a direction along the cylinder bore axis and away from the cylinder head.

3. The water jacket baffle according to claim 1, wherein a boss is formed on an inner surface where the first plate body portion and the second plate body portion are joined, and a plurality of stopper projections are provided on the boss.

4. The water jacket spacer according to claim 1, wherein an outer surface of the second plate body portion is at least partially recessed inward, and a plurality of reinforcing ribs are formed in the recessed region, the plurality of reinforcing ribs being connected alternately.

5. A water jacket baffle as set forth in claim 1 further comprising a coolant outlet port located on said first plate body at a location not lower than the level of the junction of said first plate body and said second plate body.

6. The water jacket baffle according to claim 5, further comprising a coolant inlet port located diagonally to the coolant outlet port.

7. The water jacket separator plate according to claim 1, wherein an end surface of the first plate body portion remote from the second plate body portion is lower than a top end surface of the cylinder bore.

8. The water jacket spacer of claim 1 wherein said first plate body portion is integrally formed with said second plate body portion.

9. An engine, characterized in that: a water jacket baffle as claimed in any one of claims 1 to 8 mounted within an engine water jacket.

10. A vehicle, characterized in that: comprising an engine according to claim 9.