CN220929500U

CN220929500U - Engine oil cooler

Info

Publication number: CN220929500U
Application number: CN202323190417.2U
Authority: CN
Inventors: 罗魁; 许惠松; 徐涛
Original assignee: Ningbo Far East Automobile Parts Manufacturing Co ltd
Current assignee: Ningbo Far East Automobile Parts Manufacturing Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-05-10
Anticipated expiration: 2033-11-24

Abstract

The utility model provides an engine oil cooler which comprises a cooling core body and a mounting base, wherein the cooling core body comprises a cooling liquid cavity and an engine oil cavity, one end of the cooling core body is provided with an oil inlet and an oil outlet, the other end of the cooling core body is provided with a liquid inlet and a liquid outlet, the mounting base comprises a first connecting plate and a second connecting plate, one side of the first connecting plate is connected with the cooling core body, and the other side of the first connecting plate is connected with one side of the second connecting plate; the first connecting plate and the second connecting plate are provided with first inlets; a transition cavity extending along the length direction of the transition cavity is arranged between the first connecting plate and the second connecting plate, a channel which is coaxial with the oil outlet and is used for communicating the transition cavity with the oil outlet is arranged on the first connecting plate, a second inlet communicated with the transition cavity is arranged on the second connecting plate, and the second inlet and the first inlet are both positioned at one end of the cooling core body in the length direction. The engine oil cooler disclosed by the utility model is convenient in processing technology and low in manufacturing cost.

Description

Engine oil cooler

Technical Field

The utility model relates to the technical field of engine oil cooling, in particular to an engine oil cooler.

Background

At present, oil-cooled heat exchangers widely applied to engines, gearboxes, motors and the like are generally composed of a plurality of layers of core plates. The plurality of core plates are alternately stacked in different modes according to actual needs, brazed into an integral core body, and fluid passages are formed between the adjacent core plates. The core body and the corresponding parts such as the connecting pipe, the flange, the mounting plate and the like are assembled together to form the laminated heat exchange.

In practical applications, in order to facilitate the installation of the core and the gearbox casing, it is generally necessary to provide an installation base at the bottom of the core.

Due to the limitation of the actual oil inlet and outlet positions on the gearbox shell, an inlet opposite to the oil inlet is required to be formed on the mounting base. In order to realize that the positions of an oil inlet and an oil outlet arranged on the core body can be matched with the actual oil inlet and the actual oil outlet positions on the gearbox shell, corresponding channels are required to be arranged on the mounting base in actual application, and the inlet positions of the oil inlet end or the oil outlet end are moved. In the prior art, the mounting base is usually a die-casting bottom plate, and corresponding transition channels are die-cast and formed in the mounting base, so that the processing technology is difficult; and the installation base is connected with the core body through the connecting bolt, and corresponding sealing elements are required to be arranged between the installation base and the core body, so that the cost is relatively high.

Disclosure of utility model

The utility model solves the problems that: overcomes at least one defect in the prior art, provides an engine oil cooler, and has convenient processing technology and low manufacturing cost.

In order to solve the problems, the utility model provides an engine oil cooler, which comprises a cooling core body and a mounting base for mounting the cooling core body on a box body, wherein the cooling core body comprises a cooling liquid cavity and an engine oil cavity, one end of the cooling core body, which is close to the mounting base, is provided with an oil inlet and an oil outlet which are communicated with the engine oil cavity and are positioned at two ends of the cooling core body in the length direction, the other end of the cooling core body is provided with a liquid inlet and a liquid outlet which are communicated with the cooling liquid cavity, the mounting base comprises a first connecting plate and a second connecting plate, one side of the first connecting plate is connected with the cooling core body, and the other side of the first connecting plate is connected with one side of the second connecting plate; the first connecting plate and the second connecting plate are respectively provided with a first inlet which is communicated with the oil inlet and is positioned on the same axis; the cooling device comprises a cooling core body and is characterized in that a transition cavity extending along the length direction of the cooling core body is arranged between a first connecting plate and a second connecting plate, a channel coaxial with an oil outlet and used for communicating the transition cavity with the oil outlet is arranged on the first connecting plate, a second inlet communicated with the transition cavity is arranged on the second connecting plate, and the second inlet and the first inlet are both positioned at one end of the cooling core body in the length direction.

Compared with the prior art, the utility model has the advantages that:

In the engine oil cooler structure, the integral mounting base in the traditional die-casting mode is replaced by two connecting plates, and the transition cavity is arranged between the two connecting plates to change the position of the second inlet so as to be close to the first inlet, so that the engine oil cooler structure can be matched with the engine oil inlet and outlet positions on a gearbox, the mounting difficulty is reduced, the transition connection of pipelines is not required to be carried out outside, the connecting structure is simplified, and the cost is reduced; in addition, the two connecting plates are directly brazed with the cooling core body into an integral structure, compared with the traditional mode that the mounting base is connected with the cooling core body through bolts and matched with the sealing piece, elements are saved, die casting is not needed, the processing technology is relatively simple, and the cost is low.

As a structure, the first connecting plate is provided with a communication groove extending along the length direction, and one side of the cooling core body, which is close to the first connecting plate, is provided with a bottom plate for sealing the communication groove, so that the transition cavity is formed among the bottom plate, the communication groove and the second connecting plate; and the bottom plate is provided with an oil outlet through hole for communicating the oil outlet with the transition cavity and an oil inlet through hole for communicating the oil inlet with the first inlet. In the structure, through the integral through communicating groove formed in the first connecting plate, the transition cavity is formed by matching with the bottom plate structure, the structure is simple, the direct stamping forming can be realized, and the cost is relatively low.

As another structure, a groove extending along the length direction of the first connecting plate is formed on one side of the first connecting plate near the second connecting plate and/or one side of the second connecting plate near the first connecting plate in a concave manner, so that the transition cavity is formed between the first connecting plate and the second connecting plate. In the structure, the groove penetrating in the non-thickness direction is formed on the first connecting plate and/or the second connecting plate to form the transition cavity, so that the bottom plate can be omitted, but the thickness of the first connecting plate and the thickness of the second connecting plate are required to be increased, the groove is not easy to be directly punched and formed, and the processing technology is required to be changed.

And the second inlet and the first inlet on the second connecting plate are respectively provided with an oil port guide sleeve, and the periphery of the second connecting plate, which is positioned on the two oil port guide rings, is provided with a sealing ring. In the improved structure, when the guide sleeve is arranged to enable the cooler to be mounted on the box body, the first inlet and the second inlet can be more accurately connected and matched with the oil inlet and the oil outlet of the gearbox.

Further improved, a plurality of first positioning holes are formed in the end face, close to one side of the cooling core body, of the bottom plate in a concave manner, and first positioning columns which are in insertion fit with the first positioning holes are arranged at one end, close to the bottom plate, of the cooling core body in a convex manner; the other side of the bottom plate is convexly provided with a plurality of second positioning columns, and one side of the first connecting plate, which is close to the bottom plate, is provided with second positioning holes which are inserted and assembled with the second positioning columns; a plurality of third positioning holes are formed in one side, close to the second connecting plate, of the first connecting plate, and third positioning columns which are in insertion fit with the third positioning holes are formed in the second connecting plate. In the improved structure, the arrangement of each positioning structure improves the connection precision of the cooling core body and the mounting base, improves the mounting efficiency, and does not need to find an angle specially during mounting, so long as the insertion matching of the corresponding positioning column and the positioning hole structure is ensured.

Still further, a plurality of installation lugs are formed on the periphery of the installation base, and installation holes are formed in each installation lug. In the improved structure, the mounting lug is used for realizing the connection between the integral cooler and the box body, and the structure is simple and the mounting is convenient.

And the cooling core is connected with a fixing support at one end far away from the bottom plate, and a plastic clamp is detachably connected to the fixing support. In the improved structure, the fixing frame and the plastic clamp are arranged to enable the plastic clamp to be connected with other parts quickly, and meanwhile, the position layout of peripheral parts can be optimized.

Still improve, bottom plate, first connecting plate and second connecting plate are the stamping workpiece, just the cooling core with bottom plate, first connecting plate, second connecting plate braze welding is monolithic structure. Among the above-mentioned improvement structure, punching press form processing bottom plate, first connecting plate and second connecting plate effectively reduce processing cost.

Additional improved features and advantages of the utility model will be set forth in the detailed description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

FIG. 1 is a perspective view of an engine oil cooler of the present utility model;

FIG. 2 is another angular perspective view of the oil cooler of the present utility model;

FIG. 3 is an exploded view of the connection structure of the cooling core and the mounting base according to the present utility model;

FIG. 4 is another angular schematic view of the structure of FIG. 3;

FIG. 5 is another angular schematic view of the structure of FIG. 3;

FIG. 6 is a block diagram of a core plate in the present utility model;

fig. 7 is another angular structural view of the core plate in the present utility model.

Reference numerals illustrate:

1. Cooling the core; 2. an oil inlet; 3. an oil outlet; 4. a liquid inlet; 5. a liquid outlet; 6. a first connection plate; 7. a second connecting plate; 8. a first inlet; 9. a transition chamber; 10. a second inlet; 11. a communication groove; 12. a bottom plate; 13. an oil outlet through hole; 14. an oil inlet through hole; 15. an oil port guide sleeve; 16. a seal ring; 17. a first positioning hole; 18. a first positioning column; 19. a second positioning column; 20. a second positioning hole; 21. a third positioning hole; 22. a third positioning column; 23. mounting lugs; 24. a mounting hole; 25. a fixed bracket; 26. a plastic clamp; 27. a core plate; 28. a first boss; 29. a second boss; 30. a first communication hole; 31. and a second communication hole.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, the utility model provides an engine oil cooler, comprising a cooling core 1 and a mounting base for mounting the cooling core 1 on a box, wherein the cooling core 1 comprises a cooling liquid cavity and an engine oil cavity, the concrete cooling core 1 is formed by stacking a plurality of layers of rectangular core plates 27, the upper end surfaces of the core plates 27 are provided with concave cavities, the lower part of each core plate 27 positioned at the upper layer is accommodated in a groove of the core plate 27 positioned at the lower layer, one end of each core plate 27 in the width direction is formed with two first bosses 28 protruding upwards, the other end of each core plate 27 in the width direction is formed with two second bosses 29 protruding downwards, and the first bosses 28 and the second bosses 29 are respectively provided with a first communication hole 30 and a second communication hole 31; the two adjacent core plates 27 are in a 180-degree rotation relationship, namely, the second boss 29 of the upper core plate 27 protruding downwards corresponds to the position of the first boss 28 of the lower core plate 27 protruding upwards, as shown in fig. 6 and 7; therefore, after the multi-layer core plates 27 are assembled in a vertically staggered manner, a cooling liquid cavity and an oil cavity which are mutually independent are formed, the structure is the prior art, and specific reference can be made to a patent CN219064244U, and the second section of the detailed description of the present utility model is omitted, so that the description of the present utility model is not repeated.

As shown in fig. 5, one end of the cooling core body 1, which is close to the mounting base, is provided with an oil inlet 2 and an oil outlet 3 which are communicated with the engine oil cavity and are positioned at two ends of the cooling core body 1 in the length direction, the other end of the cooling core body 1 is provided with a liquid inlet 4 and a liquid outlet 5 which are communicated with the cooling liquid cavity, the liquid inlet and the liquid outlet 5 are used for supplying cooling liquid for circulation, the engine oil outlet 3 is used for supplying engine oil for circulation, heat exchange is realized through two mutually staggered cavities, and engine oil cooling is realized.

In addition, as shown in fig. 3 and 4, in this embodiment, the mounting base includes a first connecting plate 6 and a second connecting plate 7, one side of the first connecting plate 6 is connected with the cooling core 1, the other side of the first connecting plate 6 is connected with one side of the second connecting plate 7, the other side of the second connecting plate 7 is abutted with the box body and is connected through mounting lugs 23 on the periphery of the mounting base, specifically, mounting holes 24 are provided on each mounting lug 23 for penetrating connecting screws, and the connecting screws realize detachable connection for connecting the whole cooler with the box body.

In the structure, the first connecting plate 6 and the second connecting plate 7 are respectively provided with the first inlets 8 which are communicated with the oil inlet 2 and positioned on the same axis; a transition cavity 9 extending along the length direction of the transition cavity is arranged between the first connecting plate 6 and the second connecting plate 7, a channel which is coaxial with the oil outlet 3 and is used for communicating the transition cavity 9 with the oil outlet 3 is arranged on the first connecting plate 6, a second inlet 10 which is communicated with the transition cavity 9 is arranged on the second connecting plate 7, and the second inlet 10 and the first inlet 8 are both positioned at one end of the cooling core body 1 in the length direction. The transition chamber 9 is arranged here mainly for the purpose of changing the position of the second inlet 10 to be close to the first inlet 8, so that it can be matched to the position of the oil inlet and outlet on the gearbox. That is, the first inlet 8 and the second inlet 10 in the present embodiment are provided at one end in the longitudinal direction of the cooling core 1, and are particularly useful. And the integral die-casting base in the prior art is replaced by the two connecting plates, so that the cost and the process difficulty are reduced.

Specifically, as shown in fig. 5, the transition cavity 9 is formed in various manners, in this embodiment, a communication groove 11 extending along the length direction of the first connecting plate 6 is formed on the first connecting plate 6, and the directly punch forming of the first connecting plate 6 and the communication groove 11 is very convenient; in addition, due to the requirement of the installation position, the length of the communication groove 11 is longer than that of the cooling core 1, and therefore, a bottom plate 12 is arranged on one side of the cooling core 1 close to the first connecting plate 6, and the bottom plate 12 is used for sealing the communication groove 11, so that a transition cavity 9 is formed among the bottom plate 12, the communication groove 11 and the second connecting plate 7; and the bottom plate 12 is provided with an oil outlet through hole 13 for communicating the oil outlet 3 with the transition cavity 9, and an oil inlet through hole 14 for communicating the oil inlet 2 with the first inlet 8. The transition cavity 9 is arranged smoothly, so that the actual engine oil inlet position is moved, and the engine oil inlet position is conveniently and accurately installed and matched with the engine oil outlet position on the gearbox. In this configuration, the transition chamber 9 and the channel become a unitary structure.

In other embodiments, the inner groove may be disposed only on one side of the first connecting plate 6 close to the second connecting plate 7, the second connecting plate 7 is of a planar structure, the inner groove may be disposed only on one side of the second connecting plate 7 close to the first connecting plate 6, the first connecting plate 6 is of a planar structure, the inner groove may be disposed on one side of the first connecting plate 6 close to the second connecting plate 7, and the inner groove may be disposed on the opposite side of the second connecting plate 7 to the first connecting plate 6, so that the bottom plate 12 is not required to be disposed, but the thicknesses of the first connecting plate 6 and the second connecting plate 7 are greatly increased, which is not beneficial to stamping production, and the overall processing cost is increased.

In this embodiment, as shown in fig. 3, the second inlet 10 and the first inlet 8 on the second connecting plate 7 are both provided with the oil port guide sleeve 15, so that when the cooler is mounted on the box body, the positions of the first inlet 8 and the second inlet 10 can be more accurately connected and matched with the oil inlet and the oil outlet 3 of the gearbox. In addition, in order to ensure the sealing performance of the oil port connection part, positioning grooves are formed in the outer circumferences of the two oil port guide rings on the second connecting plate 7, sealing rings 16 are assembled in the positioning grooves, and the outer end faces of the sealing rings 16 are higher than the outer end faces of the second connecting plate 7.

As shown in fig. 3 and 4, in the above structure, for positioning convenience, a plurality of first positioning holes 17 are concavely formed on the end face of the bottom plate 12 near the cooling core 1, and a first positioning post 18 which is inserted and assembled with each first positioning hole 17 is convexly arranged at one end of the cooling core 1 near the bottom plate 12; the other side of the bottom plate 12 is convexly provided with a plurality of second positioning columns 19, and one side of the first connecting plate 6 near the bottom plate 12 is provided with second positioning holes 20 which are inserted and assembled with the second positioning columns 19; a plurality of third positioning holes 21 are formed on one side of the first connecting plate 6 near the second connecting plate 7, and third positioning columns 22 which are inserted and assembled with the third positioning holes 21 are formed on the second connecting plate 7. The structure improves the connection precision of the cooling core body 1 and the mounting base, improves the mounting efficiency, and does not need to find an angle specially during mounting, so long as the corresponding positioning column and positioning hole structure are ensured to be inserted and matched.

On the other hand, as shown in fig. 1, in this embodiment, a fixing bracket 25 is connected to an end of the cooling core 1 away from the bottom plate 12, and a plastic clip 26 is detachably connected to the fixing bracket 25. The fixing frame is riveted and fixed with the upper end of the cooling core 1, but can also be fixed by adopting a welding or screwing mode in other embodiments, and the plastic clamp 26 is used for connecting and positioning wire harnesses or other components, so that the whole structure is tidier.

In this embodiment, for the convenience of processing, the bottom plate 12, the first connecting plate 6 and the second connecting plate 7 are stamping parts, and corresponding through holes are formed on the first connecting plate 6 and the second connecting plate 7 by direct stamping, when the cooling core 1 is brazed with the bottom plate 12, the first connecting plate 6 and the second connecting plate 7 into an integral structure, the mounting lugs 23 and the mounting holes 24 can be formed, which is very convenient and reduces the processing difficulty. The original die-casting base is changed into three stamping parts, and two connecting plates, a bottom plate 12 and other parts (the bottom plate 12) of the engine oil cooler are assembled and brazed together to form; a process of reducing the engine oil cooler (a die casting process is reduced); the sealing ring 16 and the bolt parts between the original engine oil cooler and the die-casting base are reduced, and the cost is reduced.

Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.

Claims

1. The utility model provides an oil cooler, includes cooling core (1) and is used for with install the installation base on the box of cooling core (1), cooling core (1) include coolant liquid chamber and engine oil chamber, cooling core (1) is near the one end of installation base be provided with engine oil chamber intercommunication and be located oil inlet (2) and oil-out (3) at cooling core (1) length direction both ends, the other end of cooling core (1) be provided with inlet (4) and liquid outlet (5) of coolant liquid chamber intercommunication, its characterized in that: the mounting base comprises a first connecting plate (6) and a second connecting plate (7), one side of the first connecting plate (6) is connected with the cooling core body (1), and the other side of the first connecting plate (6) is connected with one side of the second connecting plate (7); the first connecting plate (6) and the second connecting plate (7) are respectively provided with a first inlet (8) which is communicated with the oil inlet (2) and is positioned on the same axis; a transition cavity (9) extending along the length direction of the transition cavity is arranged between the first connecting plate (6) and the second connecting plate (7), a channel coaxial with the oil outlet (3) and used for communicating the transition cavity (9) with the oil outlet (3) is formed in the first connecting plate (6), a second inlet (10) communicated with the transition cavity (9) is formed in the second connecting plate (7), and the second inlet (10) and the first inlet (8) are both positioned at one end of the cooling core body (1) in the length direction; the cooling core body (1), the first connecting plate (6) and the second connecting plate (7) are brazed into an integral structure.

2. The oil cooler according to claim 1, wherein: a communication groove (11) extending along the length direction of the first connecting plate (6) is formed in the first connecting plate (6), and a bottom plate (12) for sealing the communication groove (11) is arranged on one side, close to the first connecting plate (6), of the cooling core body (1), so that a transition cavity (9) is formed among the bottom plate (12), the communication groove (11) and the second connecting plate (7); and an oil outlet through hole (13) for communicating the oil outlet (3) with the transition cavity (9) and an oil inlet through hole (14) for communicating the oil inlet (2) with the first inlet (8) are formed in the bottom plate (12).

3. The oil cooler according to claim 1, wherein: and a groove extending along the length direction of the first connecting plate (6) is formed on one side of the first connecting plate (6) close to the second connecting plate (7) and/or one side of the second connecting plate (7) close to the first connecting plate (6) in a concave mode, so that a transition cavity (9) is formed between the first connecting plate (6) and the second connecting plate (7).

4. An oil cooler according to claim 2 or 3, characterized in that: the second inlet (10) and the first inlet (8) on the second connecting plate (7) are internally provided with oil port guide sleeves (15), and the peripheries of the two oil port guide rings on the second connecting plate (7) are provided with sealing rings (16).

5. The oil cooler according to claim 2, characterized in that: a plurality of first positioning holes (17) are formed on the end face, close to one side of the cooling core body (1), of the bottom plate (12) in a concave manner, and first positioning columns (18) which are inserted and assembled with the first positioning holes (17) are arranged at one end, close to the bottom plate (12), of the cooling core body (1) in a convex manner; a plurality of second positioning columns (19) are formed on the other side of the bottom plate (12) in an outwards protruding mode, and a second positioning hole (20) which is in insertion fit with each second positioning column (19) is formed on one side, close to the bottom plate (12), of the first connecting plate (6); a plurality of third positioning holes (21) are formed in one side, close to the second connecting plate (7), of the first connecting plate (6), and third positioning columns (22) which are in insertion fit with the third positioning holes (21) are formed in the second connecting plate (7).

6. The oil cooler according to claim 5, wherein: a plurality of mounting lugs (23) are formed on the periphery of the mounting base, and mounting holes (24) are formed in each mounting lug (23).

7. The oil cooler according to claim 5, wherein: one end of the cooling core body (1) far away from the bottom plate (12) is connected with a fixing support (25), and a plastic clamp (26) is detachably connected to the fixing support (25).

8. The oil cooler according to claim 5, wherein: the bottom plate (12), the first connecting plate (6) and the second connecting plate (7) are stamping parts; the cooling core body (1), the bottom plate (12), the first connecting plate (6) and the second connecting plate (7) are brazed into an integral structure.