Oil cooler

Abstract

To provide an oil cooler capable of restraining oil from intruding into a gap between a core and an oil receiver and restraining the oil from scattering to peripheral components.SOLUTION: An oil cooler 1 to which an oil filter 10 is detachably attached includes an oil cooler core 5 for cooling heat of oil, a cover disk 2 attached to the oil cooler core, and an oil receiver 3 for guiding oil dripping at attachment / detachment of the oil filter 10. The oil receiver 3 is provided between the oil filter 10 and the oil cooler core 5 along an attachment direction of the oil filter 10 and is integrally attached to the cover disk 2.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an oil cooler. [Background technology]

[0002] Conventionally, there has been known a technique for easily attaching and detaching an oil filter and preventing oil from adhering to a cooling water hose (see, for example, Patent Document 1). In this technique, an oil receiver (cover body) is detachably attached externally near the oil cooler core. Even if oil drips when attaching or detaching the oil filter, the oil is received by the oil receiver. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-73766 A Summary of the Invention [Problem to be solved by the invention]

[0004] If oil spurts out when changing the oil filter, the spurted oil can get into the gap between the oil cooler core and the oil receiver, making it difficult to wipe off. In addition, because the oil filter and the oil receiver are far apart, the spurted oil can splash and splash onto surrounding parts.

[0005] The present invention has been developed in consideration of the above-mentioned problems, and aims to provide an oil cooler that can prevent oil from entering the gap between the core portion and the oil receiver and from splashing onto surrounding components. [Means for solving the problem]

[0006] In order to achieve the above object, the oil cooler disclosed in the specification is an oil cooler to which an oil filter is detachably attached, and includes a core portion that cools the heat of the oil, a cover portion that is attached to the core portion, and an oil receiver that guides oil that drips when the oil filter is attached or detached to an external container, and the oil receiver is provided between the oil filter and the core portion along the attachment direction of the oil filter and is attached integrally to the cover portion, and has a flat plate portion, a flange portion that extends from the flat plate portion in the direction in which the oil filter is attached or detached and is inclined downward, and a groove portion formed at the lower end of the flange portion. The cover portion is provided between the oil receiver and the core portion along an attachment direction of the oil filter, and the oil receiver is brazed to the cover portion. It is characterized by the fact that Effect of the Invention

[0007] This makes it possible to prevent oil from entering the gap between the core portion and the oil receiver and to prevent oil from splashing onto surrounding components. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a configuration of an oil cooler according to an embodiment of the present invention; [Diagram 2] 1 is a perspective view showing a configuration of an oil cooler according to an embodiment of the present invention; [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 2 is a side view of the oil cooler as viewed from a direction A in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0010] 1 and 2 are perspective views showing the configuration of an oil cooler according to this embodiment. An oil cooler 1 according to this embodiment includes a cover disc 2, an oil receiver 3, a union bolt 4, an oil cooler core 5, a base plate 6, and piping parts 7A and 7B. The cover disc 2 functions as a cover part, and the oil cooler core 5 functions as a core part.

[0011] The square prism-shaped oil cooler core 5 functions as a heat exchanger that cools the heat of hot oil with cooling water, and is attached to a plate-shaped base plate 6. Piping sections 7A, 7B are the inlet and outlet for the cooling water, and are attached to the oil cooler core 5. The cooling water circulates between the oil cooler core 5 and a cooling system of the internal combustion engine (not shown) through the piping sections 7A, 7B. The oil cooler 1 is attached to the internal combustion engine with bolts 9 inserted into bolt holes 8 provided in the corners of the base plate 6.

[0012] The oil filter 10 is removably fixed to the union bolt 4. For example, a thread groove (not shown) is provided at the tip of the union bolt 4, and the oil filter 10 can be attached to or removed from the union bolt 4 by rotating it. A through hole 30 is provided in the center of the union bolt 4, and oil that has passed through the oil cooler core 5 flows into the oil filter 10. Arrow P in FIG. 1 indicates the oil flowing into the oil cooler core 5. Arrow Q in FIG. 1 indicates the oil flowing into the oil filter 10.

[0013] The cover disk 2 is attached to the upper surface of the oil cooler core 5, and is a member having a shape as shown in FIG. 3. The cover disk 2 is plate-shaped, and has a first through hole 11 in the center, in which a threaded portion (not shown) for screwing in the union bolt 4 is formed. The union bolt 4 is screwed to the cover disk 2 and fixed by brazing. Around the first through hole 11, a plurality of second through holes 12 having a diameter smaller than that of the first through hole 11 are provided. The second through holes 12 function as oil passages for flowing oil to the oil filter 10. The cover disk 2 has a first surface 14a, a second surface 14b, and a third surface 14c, and the first surface 14a and the third surface 14c are horizontal surfaces. The second surface 14b in which the second through holes 12 are provided is inclined in a tapered shape so as to be recessed toward the first through hole 11.

[0014] Further, recesses 13 that engage with protrusions 15 provided on the upper surface of the oil cooler core 5 are provided on both ends of the cover disc 2. The recesses 13 are used to position the cover disc 2 relative to the oil cooler core 5.

[0015] The oil receiver 3 is a thin plate having a thickness of about 1.0 to 2.0 mm. Since the oil receiver 3 is thin, it is easy to process and the degree of freedom in design can be improved.

[0016] As shown in Fig. 4, the oil receiver 3 includes a flat plate portion 20 and a flange portion 23 that protrudes from the flat plate portion 20 at an incline toward the front, that is, protrudes in the direction B in Fig. 4. The flange portion 23 is inclined toward the front and downward (direction B), and a V-shaped groove portion 24 is provided at the lower end of the flange portion 23, so that oil dripping from the oil filter 10 or the union bolt 4 during replacement of the oil filter 10 flows toward the front and downward (direction B). Therefore, when replacing the filter, an operator can collect the oil by placing a collection container under the oil receiver 3.

[0017] Fig. 5 shows a side view of the oil cooler 1 as viewed from direction A in Fig. 1. As shown in Fig. 5, the oil receiver 3 (flange portion 23) protrudes further than the union bolt 4 in the removal direction of the oil filter 10 or in the height direction of the oil cooler core 5. This allows the flange portion 23 to receive oil dripping from the oil filter 10 or the union bolt 4.

[0018] Returning to FIG. 4, the flat plate portion 20 of the oil receiver 3 has a first through hole 21 in the center through which the union bolt 4 passes, a plurality of second through holes 22 arranged around the first through hole 21, and a contact surface 25 with the oil filter 10. The contact surface 25 with the oil filter 10 ensures a certain seal width to prevent oil leakage. The second through hole 22 is provided so as to overlap with the second through hole 12 of the cover disk 2, and functions as an oil passage that flows oil to the oil filter 10 side. The union bolt 4 that passes through the first through hole 21 is used to position the oil receiver 3.

[0019] The oil receiver 3 is made of an aluminum and wax clad material, and is brazed (welded) to the cover disc 2. Specifically, the wax side of the oil receiver 3 is arranged to face the cover disc 2, and brazed to the cover disc 2. However, the brazing method is not limited to the above. Brazing may be performed by various methods, such as using a brazing sheet. The oil receiver 3 integrated with the cover disc 2 is arranged between the oil filter 10 and the oil cooler core 5 along the installation direction of the oil filter 10.

[0020] Since the oil receiver 3 is integrated with the cover disk 2 by brazing, the oil receiver 3 can be installed in a position close to the oil filter 10. This improves the oil catching performance and prevents oil from splashing onto surrounding parts.

[0021] In addition, when the oil receiver is attached separately to the oil cooler as in the conventional technology, the oil gets into the gap between the oil cooler core and the oil receiver, making it difficult to wipe off the oil. In this embodiment, the oil receiver 3 is integrated with the cover disk 2, so that the oil can be prevented from getting into the gap between the oil cooler core 5 and the oil receiver 3.

[0022] In addition, in this embodiment, since the oil receiver 3 is integrated with the cover disc 2, the oil passage can be sealed. In particular, it is possible to prevent oil from flowing between the oil receiver 3 and the cover disc 2. Furthermore, the part to which the oil that is spurted out during oil filter replacement adheres can be made into a single component, namely the oil receiver 3, so that the oil can be reliably and easily wiped off.

[0023] In Patent Document 1, the oil receiver needs to be attached and detached when replacing the oil filter, which increases the time required for the oil filter replacement work. However, in the present embodiment, it is not necessary to attach and detach the oil receiver 3, which reduces the time required for the oil filter 10 replacement work.

[0024] As described above, according to this embodiment, the oil receiver 3 is provided between the oil filter 10 and the oil cooler core 5 along the mounting direction of the oil filter 10, and is integrally attached to the cover disk 2, thereby preventing oil from entering the gap between the oil cooler core 5 and the oil receiver 3 and preventing oil from splashing onto surrounding components.

[0025] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and variations are possible within the scope of the gist of the present invention described in the claims. [Explanation of symbols]

[0026] 1 oil cooler, 2 cover disc, 3 oil receiver, 4 union bolt, 5 oil cooler core, 6 base plate, 7A, 7B piping section, 10 oil filter

Claims

[Claim 1] An oil cooler to which an oil filter is detachably attached, A core that cools the oil, A cover portion attached to the core portion; an oil receiver that guides oil dripping when the oil filter is attached or detached to an external container; The oil receiver is provided between the oil filter and the core portion along the attachment direction of the oil filter, and is attached integrally to the cover portion, and has a flat plate portion, a flange portion extending from the flat plate portion in the direction in which the oil filter is attached and detached and inclined downward, and a groove portion formed at a lower end of the flange portion, an oil cooler having a cover portion disposed between the oil receiver and the core portion along an installation direction of the oil filter, the oil receiver being brazed to the cover portion;

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