CN112683098B - Dislocation dotting oil cooler pipe - Google Patents

Abstract

The invention discloses an oil cooler tube with misaligned dots. sunken ribs. Both ends of the pipe body are also provided with reinforcing pieces or bending parts. There are multiple oil passages in the tube of the misplaced dotted oil cooler of the present invention, and the design of the cross dislocation enhances the turbulence effect, so that the oil cooler tube of the present invention can have a better turbulence effect without using inner fins. The misplaced dotted oil cooler tube of the present invention has relatively high working pressure, and can ensure the pressure strength at the inlet and outlet ends of the oil cooler tube, so that lubricating oil can pass through smoothly. And without using inner fins, the weight of the tube body is reduced, which is beneficial to reduce the overall weight of the oil cooler, and the high-strength oil cooler tube also prolongs the service life of the oil cooler. The invention has simple structure, convenient installation, high lubricating oil cooling efficiency, low raw material cost and good application prospect.

Description

A misplaced dotted oil cooler tube

technical field

The invention relates to the technical field of automobile radiator components, in particular to an oil cooler tube with misplaced dots.

Background technique

When the car is running, the temperature of the lubricating oil contained in the gearbox will continue to rise due to the transmission of power. If the temperature of the lubricating oil is too high, it may cause the lubricating oil to boil and lose its lubricating effect, thus making the gears easy to wear. How to ensure The temperature of the lubricating oil in the gearbox will not be too high, which becomes a very important issue. In the existing structural configuration of automobiles, oil cooler tubes are provided to cool lubricating oil and ensure that the oil temperature is within the normal working range.

The automobile oil cooler in the prior art includes an oil cooler pipe body, the oil cooler pipe body has inner and outer double-layer pipe walls, the pipe ends of the inner and outer double-layer pipe walls are sealed and closed, and the middle of the inner and outer double-layer pipe walls surrounds the oil passage. One end of the outer tube wall of the oil cooler tube is provided with an oil inlet, and the other end is provided with an oil outlet. The oil inlet and outlet are both connected to the oil passing cavity. The hole and the outer wall are in contact with the cooling water. However, the cooling area of the above-mentioned pipe body is limited, and a better oil cooling effect cannot be achieved.

Secondly, when assembling the oil cooler tube body into an oil cooler, due to the unreasonable structural design, the welding strength is insufficient, so that the working pressure that the oil cooling tube body can withstand during work is small, and the pressure at the inlet and outlet ends of the oil cooling tube body The strength is also weak and cannot meet the requirements of use. Therefore, enhancing the application strength of the oil cooler tube body is a key to improving the performance of the oil cooler.

Contents of the invention

Aiming at the deficiencies of the prior art, the invention provides an oil cooler tube with misplaced dots.

To achieve the above object, the present invention provides the following technical solutions:

An oil cooler tube with misplaced dots, including a tube body, the upper surface of the tube body is provided with a plurality of first grooves formed by the inward depression of the tube wall along the axial direction of the tube body, and the lower surface of the tube body is provided with a plurality of A second groove formed by the inward depression of the pipe wall; the bottom of the first groove is welded to the bottom of the second groove;

The axial direction of the first groove is perpendicular to the axial direction of the second groove, and the included angles between them and the axis of the pipe body are greater than 0° and less than 90°;

The first groove is provided with 2n columns, the number, length, width and distribution position of the second groove are the same as the first groove, and n is a positive integer;

When n is equal to 1, a reinforcing rib is provided between the two rows of first grooves, the reinforcing rib is formed by inward depression of the pipe body, and the bottom of the reinforcing rib abuts against the inner wall of the pipe;

When n≥2, n reinforcing ribs are provided on the pipe body, one reinforcing rib is provided every second row of the first groove, and the concave directions of the adjacent two reinforcing ribs are opposite.

Preferably, the length of the first groove is 0.5-1.5mm.

Preferably, the width of the first groove is 0.2-0.8mm.

Preferably, the pipe body has a width of 10-250mm and a thickness of not less than 3mm.

Preferably, the concave surfaces of the reinforcing ribs are in close contact with each other.

Preferably, reinforcing sheets are provided on the inner walls of both sides of the pipe body.

Preferably, the pipe body is formed by bending a piece of sheet body, a first bending part is provided at the bending part of the sheet body, and a second bending part and a third bending part are respectively provided at two free ends of the sheet body department.

Preferably, the first bending portion is formed by folding 2-6 layers of sheet body.

Preferably, both the second bending part and the third bending part are formed by folding 2-6 layers of the two free ends of the sheet body into the tube body, and the height of the second bending part and the third bending part is Both are half the height of the first bending part, and the number of folded layers and the folded thickness of the first bending part, the second bending part and the third bending part are the same.

The present invention has the following beneficial effects due to the adoption of the above technical solution:

1. The existing oil cooler tubes are filled with fins in ordinary welded aluminum tubes (as shown in Figure 7), and then assembled into oil coolers for use. This type of tube type has weak pressure resistance, and the middle part of the tube body is easily squeezed and deformed. The assembled oil cooler has poor strength, and the inner fins are easy to shake, which affects the heat exchange effect.

The misplaced oil cooler tube of the present invention is provided with grooves in the dislocation direction on the upper and lower sides of the pipe body, and the bottoms of the upper and lower grooves are in contact, and the hot oil flows from the reinforcing rib to the first groove close to it and The incompletely closed passage formed by the second groove, or the passage between the reinforcing rib and the reinforcing rib, or between the reinforcing rib and the side wall of the pipe body. The dots of the existing dotted oil cooler tubes are round dots, which are easy to be misaligned during welding, and the solder joints are small. If the working pressure is too high, the two welded dots may even be separated by impact. The design of the cross dislocation can make the contact point at the bottom of the groove contact accurately, improve the welding rate, and ensure the normal operation of the pipe body. And the dot design of the cross dislocation enhances the turbulence effect, so that the oil cooler tube of the present invention can have a better turbulence effect without using inner fins, reducing the weight of the tube and the weight of the oil cooler without reducing the heat exchange efficiency . In addition, the oil cooler tube of the present invention is also designed with reinforcing ribs. On the one hand, the material of the tube body is used to enhance the strength of the tube body without increasing the external volume of the tube body. On the other hand, it can also form a complete/incomplete oil passage. , to further divide the hot oil into smaller turbulent flows, so as to avoid excessive impact of hot oil flow on the pipe body and cause vibration of the oil cooler.

2. The current oil cooler is welded with reinforcing strips and upper and lower guard plates on both sides of the heat dissipation belt, that is, it is welded by independent sheet body and heat dissipation belt (as shown in Figure 8), with many welds, complex structure and difficult production process. It is cumbersome and inefficient, and it is prone to problems such as leakage and deformation during use. The present invention is also equipped with reinforcing sheets at both ends of the pipe body, which can be directly used to replace the reinforcing strips and the upper and lower guard plates, and the oil cooler tube of the present invention is used to replace the oil cooler with the old structure as shown in Figure 7, and the volume is greatly reduced. Small, the tube body is formed by one-time bending of an aluminum alloy metal sheet, the material is light, and it is easy to realize bending in production, which greatly saves processing time, high production efficiency, high overall strength of the tube body, and is not easy to leak during use . In addition, the oil cooling tube of this structure can also be used to assemble ordinary oil coolers.

3. In the present invention, bending parts can also be designed on both sides of the tube body. The bending part is formed by folding the sheet body into the tube body three times. The bending part is similar to two U-shaped openings placed alternately and then folded and extruded. The bending part can also ensure the strength of the pipe body while ensuring that the thickness of the pipe body in the width direction is small, and when the oil cooler tube of this structure is assembled into an oil cooler, there is a greater working pressure , and ensure the pressure strength at the inlet and outlet ends of the pipe, so that the lubricating oil can flow in and out smoothly.

It can be seen that when the oil cooler tube with misplaced dots of the present invention is assembled into an oil cooler, it has a relatively large working pressure and can ensure the pressure strength at the inlet and outlet ends of the oil cooler tube, so that the lubricating oil can flow in and out smoothly. . And there is no need to use inner fins, which reduces the manufacturing materials of the entire pipe body and reduces the weight of the pipe body, which is conducive to reducing the overall weight of the oil cooler and saving production costs. The high-strength oil cooler tube also extends the length of the oil cooler. service life of the device. The invention has the advantages of high strength, high working pressure, simple structure, convenient installation, high lubricating oil cooling efficiency, low cost of raw materials, and good application prospects.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of an oil cooler tube according to Embodiment 1 of the present invention.

Fig. 2 is a partial enlarged view of A in Fig. 1 .

Fig. 3 is a structural schematic diagram of another angle of the tube of the oil cooler in Embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of an oil cooler tube according to Embodiment 2 of the present invention.

Fig. 5 is a partially enlarged view of the first bending portion of Embodiment 3 of the present invention.

Fig. 6 is a partially enlarged view of the second bending portion and the third bending portion of Embodiment 3 of the present invention.

Fig. 7 is a structural schematic diagram of a conventional oil cooler tube.

Fig. 8 is a schematic structural diagram of an existing oil cooler.

In the drawings: 1-pipe body, 2-first groove, 3-second groove, 4-reinforcing rib, 5-reinforcing sheet, 6-first bending part, 7-second bending part, 8 - a third bend.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

Example 1

As shown in Figures 1-3, the misplaced dotted oil cooler tube of the present invention includes a tube body 1, the thickness of the tube body 1 is 3.0 mm, and the width is 10.0 mm; the upper surface of the tube body 1 is along the There are a plurality of first grooves 2 formed by the inward depression of the pipe wall in the axial direction, and a plurality of second grooves 3 formed by the inward depression of the pipe wall are provided on the lower surface of the pipe body 1; the bottom of the first groove 2 and the The bottom of the second groove 3 is welded. The axial direction of the first groove 2 and the axial direction of the second groove 3 are perpendicular to each other, and the included angle between them and the axis of the tube body 1 is 45°.

The first groove 2 and the second groove 3 are all provided with 6 rows, every 2 rows of the first groove 2 are evenly distributed, the length of the first groove 2 is 1.5mm, and the maximum width is 0.4mm. The number, length and width of the grooves 3 are the same as those of the first groove 2 .

A reinforcing rib 4 is provided every two rows of first grooves 2 on the tube body 2, and the reinforcing rib 4 is formed by inwardly recessing the tube body 1, and the bottom of the reinforcing rib 4 abuts against the inner wall of the tube body 1, The concave surfaces of the reinforcing ribs 4 are close to each other, and the concave directions of two adjacent reinforcing ribs 4 are opposite.

Example 2

As shown in FIG. 4 , the difference between the misplaced dotted oil cooler tube of this embodiment and the first embodiment is that the inner walls of both sides of the tube body 1 are provided with reinforcing pieces 5 .

Example 3

As shown in Figures 5-6, the difference between the misplaced dotted oil cooler tube of this embodiment and that of Embodiment 1 is that the tube body 1 is bent from a piece of sheet body, and the bending part of the sheet body is provided with a first The two free ends of the bent portion 6 are respectively provided with a second bent portion 7 and a third bent portion 8 . The first bending part 6 is formed by folding three layers of a sheet body, and the second bending part 7 and the third bending part 8 are formed by folding three layers of two free ends of the sheet body into the tube body 1 , and the heights of the second bending part 7 and the third bending part 8 are half of the height of the first bending part 6, the first bending part 6, the second bending part 7 and the third bending part 8 The thickness is the same after folding. The second bending portion 7 and the third bending portion 8 are closed by high frequency welding.

The use principle of the misplaced oil cooler tubes of Examples 1-3 is the same. When in use, the oil cooler tubes are assembled into an oil cooler, and the lubricating oil to be cooled enters the cavity in the tube body 1 from one end of the oil cooler tube. , from the incompletely closed channel formed by the reinforcing rib 4 and its adjacent first groove 2 and second groove 3, or passing between the reinforcing rib 4 and the side wall of the pipe body 1, the cross-staggered first groove 2 and the second groove The second groove 3 can reduce the flow rate of lubricating oil, increase the degree of turbulence, and make the cooling water between the lubricating oil and the oil cooler tube fully exchange heat, and the lubricating oil cooled by heat exchange flows out from the other end of the oil cooler tube, and again For the lubrication of gearboxes. The material of the cooler tube of the present invention is aluminum alloy, light in weight, easy to process, and saves production cost.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (6)

1. The oil cooler pipe with staggered dotting comprises a pipe body and is characterized in that the upper surface of the pipe body is provided with a plurality of first grooves formed by inward sinking of the pipe wall along the axial direction of the pipe body, and the lower surface of the pipe body is provided with a plurality of second grooves formed by inward sinking of the pipe wall; the bottom of the first groove is welded with the bottom of the second groove;

the axial direction of the first groove is perpendicular to the axial direction of the second groove, and the included angles between the first groove and the axial direction of the second groove are respectively larger than 0 degrees and smaller than 90 degrees with the axis of the pipe body;

the first grooves are provided with 2n rows, the number, the length, the width and the distribution positions of the second grooves are the same as those of the first grooves, and n is a positive integer;

when n is equal to 1, 1 reinforcing rib is arranged between the two rows of first grooves, the reinforcing rib is formed by inwards sinking the pipe body, and the bottom of the reinforcing rib is abutted against the inner wall of the pipe body;

when n is more than or equal to 2, the pipe body is provided with n reinforcing ribs, 1 reinforcing rib is arranged in every 2 rows of first grooves, and the concave directions of the adjacent 2 reinforcing ribs are opposite;

the concave surfaces of the reinforcing ribs are adhered;

reinforcing sheets are arranged on the inner walls of the two sides of the pipe body;

the pipe body is formed by bending a sheet body, a first bending part is arranged at the bending part of the sheet body, and a second bending part and a third bending part are respectively arranged at 2 free ends of the sheet body.

2. The offset spotted oil cooler pipe of claim 1, wherein the length of the first groove is 0.5-1.5mm.

3. The offset spotted oil cooler pipe of claim 1, wherein the first groove has a width of 0.2-0.8mm.

4. The offset spotted oil cooler pipe of claim 1, wherein the pipe body has a width of 10-250mm and a thickness of not less than 3mm.

5. The offset spotted oil cooler pipe of claim 1 wherein the first fold is formed by folding a sheet of 2-6 layers.

6. The oil cooler pipe with staggered dotting according to claim 5, wherein the second bending part and the third bending part are formed by folding 2-6 layers into the pipe body from 2 free ends of the sheet body, the heights of the second bending part and the third bending part are half of the height of the first bending part, and the folding layers and the folding thicknesses of the first bending part, the second bending part and the third bending part are the same.

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