HEAT EXCHANGER FOR A MOTOR VEHICLE

Abstract

A heat exchanger may include a plurality of pipe bodies arranged between two side parts. At least one side part may have at least one predetermined breaking point and at least one heat expansion compensator. The at least one side part may include at least one aperture, which may lead from the at least one predetermined breaking point to the at least one heat expansion compensator.

Claims

1. A heat exchanger, comprising: a plurality of pipe bodies arranged between two side parts; wherein at least one side part has at least one predetermined breaking point and at least one heat expansion compensator, and wherein the at least one side part includes at least one aperture, which leads from the at least one predetermined breaking point to the at least one heat expansion compensator.

2. The heat exchanger according to claim 1, wherein the at least one heat expansion compensator includes a first heat expansion compensator and a second heat expansion compensator, and the at least one aperture includes a first aperture and a second aperture, wherein respective end sections of the two apertures, which face one another and which are arranged at a distance to one another, form a part of the at least one predetermined breaking point.

3. The heat exchanger according to claim 2, wherein a wall thickness of the at least one side part is reduced in an area between the end sections.

4. The heat exchanger according to claim 1, wherein the at least one predetermined breaking point includes a predetermined breaking web.

5. The heat exchanger according to claim 4, wherein: the at least one side part heat expansion compensator includes a first heat expansion compensator and a second heat expansion compensator, and the at least one aperture includes a first aperture and a second aperture; the first aperture leads from the at least one predetermined breaking point to the first heat expansion compensator, and the second aperture leads from the at least one predetermined breaking point to the second heat expansion compensator; the predetermined breaking web is partly enclosed by the first and second apertures and by a third aperture, which is arranged at a distance to the first and second apertures.

6. The heat exchanger according to claim 1, wherein: the at least one side part has, in a longitudinal side, at least one recess, which is part of the at least one heat expansion compensator and divides the longitudinal side into a first and a second side section; and at least one connecting web, which connects the first side section to the second side section, is arranged in the at least one recess.

7. The heat exchanger according to claim 6, wherein the at least one aperture leads into the at least one recess.

8. The heat exchanger according to claim 1, wherein: the at least one side part has two opposite longitudinal sides each having at least one recess; and wherein each recesses is arranged at a same height of the at least one side part with respect to a longitudinal direction, which is defined by the respective longitudinal side.

9. The heat exchanger according to claim 1, wherein the at least one side part includes two recesses arranged at a distance to one another in each of two opposing longitudinal sides of the at least one side part.

10. The heat exchanger according to claim 1, wherein: the at least one side part is embodied in a plate-like manner; and the at least one predetermined breaking point is arranged substantially in the middle between two opposite longitudinal sides of the at least one side part.

11. The heat exchanger according to claim 6, wherein: the at least one recess has a triangular geometry, and the at least one connecting web has a V-shaped geometry having a tip that points inwards towards the at least one side part; and the at least one connecting web is arranged in the at least one recess in such a way that, in a top view onto the at least one side part, two passage slits, which are arranged therein in a V-shaped manner, are formed and extend the at least one aperture towards the longitudinal side of the at least one side part.

12. The heat exchanger according to claim 2, wherein the first heat expansion compensator is arranged in a first longitudinal side of the at least one side part, and the second heat expansion compensator is arranged in a second longitudinal side of the at least one side part located opposite the first longitudinal side.

13. The heat exchanger according to claim 1, wherein the at least one aperture is embodied in a slit-like manner.

14. The heat exchanger according to claim 1, wherein the at least one aperture includes a first aperture and a second aperture, which are each embodied in a slit-like manner, and are arranged at one of an acute intermediate angle or an obtuse intermediate angle to one another.

15. The heat exchanger according to claim 5, wherein the third aperture extends transversely to a longitudinal side of the at least one side part and forms an acute intermediate angle with the first and the second apertures.

16. The heat exchanger according to claim 1, wherein: the at least one side part, which is embodied in a plate-like manner, has a plate bottom, which, towards opposing longitudinal sides of the at least one side part, in each case transitions into a plate collar, which protrudes at an angle from the plate bottom; and the at least one predetermined breaking point is arranged in the plate bottom, and the at least one heat expansion compensator is at least partially arranged in the plate collar.

17. The heat exchanger according to claim 2, wherein: the first and the second heat expansion compensators form a heat expansion compensating device with the first and second apertures and the at least one predetermined breaking point; and two heat expansion compensating devices are arranged in the at least one side part at a distance to one another.

18. A motor vehicle, comprising: an internal combustion engine; and at least one of a fresh air system, which cooperates with the internal combustion engine and which has a heat exchanger embodied as intercooler, and a cooling circuit, which cooperates with the internal combustion engine and which has a heat exchanger embodied as coolant cooler; wherein the heat exchanger embodied as either the intercooler or the coolant cooler includes a plurality of pipe bodies arranged between two side parts, wherein at least one side part has at least one predetermined breaking point and at least one heat expansion compensator, and wherein the at least one side part includes at least one aperture, which leads from the at least one predetermined breaking point to the at least one heat expansion compensator.

19. A heat exchanger, comprising: a plurality of pipe bodies arranged between two side parts; wherein at least one side part has at least one predetermined breaking point and at least one heat expansion compensator, and wherein the at least one side part includes at least one aperture, which leads from the at least one predetermined breaking point to the at least one heat expansion compensator; wherein the at least one heat expansion compensator includes a first heat expansion compensator and a second heat expansion compensator, and the at least one aperture includes a first aperture and a second aperture, wherein respective end sections of the two apertures, which face one another and which are arranged at a distance to one another, form a part of the at least one predetermined breaking point; wherein the at least one side part has, in a longitudinal side, at least one recess, which is part of the first and second heat expansion compensator and divides the longitudinal side into a first and a second side section; and at least one connecting web, which connects the first side section to the second side section, is arranged in the at least one recess.

20. The heat exchanger according to claim 19, wherein: the at least one recess has a triangular geometry, and the at least one connecting web has a V-shaped geometry having a tip that points inwards towards the at least one side part; and the at least one connecting web is arranged in the at least one recess in such a way that, in a top view onto the at least one side part, two passage slits, which are arranged therein in a V-shaped manner, are formed and extend the at least one aperture towards the longitudinal side of the side part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In each case schematically,

[0032] FIG. 1 shows an example of a heat exchanger according to the invention comprising pipe bodies, which are arranged between a first and a second side part, in a perspective partial illustration,

[0033] FIG. 2 shows a top view onto the first side part,

[0034] FIG. 3 shows a detailed illustration of the side part of FIG. 2 in the area of a heat expansion compensator,

[0035] FIG. 4 shows the heat exchanger of FIG. 1 from another viewing angle,

[0036] FIG. 5 shows a top view onto the second side part,

[0037] FIG. 6 shows a side view of the second side part,

[0038] FIG. 7 shows a variation of the first side part of FIGS. 2 and 3 in a top view,

[0039] FIG. 8 shows a side view of the side part of FIG. 7.

DETAILED DESCRIPTION

[0040] In a perspective partial illustration, FIG. 1 illustrates an example of a heat exchanger 1 according to the invention, which is embodied as intercooler in the example of FIG. 1. The heat exchanger 1 comprises a plurality of pipe bodies 2, which are stacked on top of one another along a stacking direction S and through which a coolant (not shown) can flow. The heat exchanger 1 further comprises a bottom 3, to which the pipe bodies 2 are soldered with their longitudinal ends 5 in the assembled state of the heat exchanger shown in FIG. 1. A coolant distributor 4 is also attached to the bottom 3, via which the coolant can be distributed to the individual pipe bodies 2. On a longitudinal end of the pipe bodies 2, which is located opposite the coolant distributor 4, provision can analogously be made for a further bottom (not shown), to which a coolant collector is attached in an analogous manner (also not shown). The coolant distributor 4 and the non-illustrated coolant collector can be crimped to the respective bottom 3.

[0041] As can further be seen in FIG. 1, the pipe bodies 2 are arranged between two side parts 6a, 6b. The two side parts 6a, 6b facilitate the soldering of the pipe bodies 2 to the two bottoms 3 in the course of the assembly of the heat exchanger 1, because they hold the group of the two bottoms 3 (only a single such bottom is shown in the partial illustration of FIG. 1) and the pipe bodies 2, which are arranged between the two bottoms 3, in the desired position during the soldering process. After the soldering, the two side parts 6a, 6b are no longer required and can be removed from the heat exchanger 1 again, but, for the sake of simplicity, frequently remain on the heat exchanger 1 after conclusion of the installation.

[0042] FIG. 2 shows the first side part 6a in a top view along the stacking direction S in an exemplary manner. According to FIG. 2, the first side part 6a is embodied in a longitudinally-shaped manner and extends along a longitudinal direction L, which runs perpendicular to the stacking direction S. According to FIG. 2, the side part 6a has a predetermined breaking point 7. The predetermined breaking point 7 comprises a predetermined breaking web 10. Compared to the wall thickness of the areas of the side part 6a, which are complementary to the predetermined breaking web 10, the wall thickness of the predetermined breaking web 10 can be reduced, which cannot be gathered directly from the top view of FIG. 1. In the example of the figures, the predetermined breaking point 7 is arranged substantially in the middle between the two opposite longitudinal sides 11a, 11b of the first side part 6a.

[0043] The first side part 6a further has a first and a second heat expansion compensator 8a, 8b as well as a first and a second aperture 9a, 9b. The two apertures 9a, 9b are thereby preferably embodied in a slit-like manner. As clearly illustrated in FIG. 2, the first aperture 9a leads from the predetermined breaking point 7 to the first heat expansion compensator 8a. Analogously, the second aperture 9b leads from the predetermined breaking point 7 to the second heat expansion compensator 8b. According to FIG. 2, the predetermined breaking web 10 is furthermore partially enclosed by the first and second aperture 9a, 9b as well as by a further third aperture 9c, which is arranged at a distance to said two apertures 9a, 9b. The third aperture 9c can also be embodied in a slit-like manner. The predetermined breaking point 7 thus encompasses the predetermined breaking web 10 as well as the three apertures 9a, 9b and 9c.

[0044] According to FIG. 2, the side part 6a is embodied in a substantially plate-like manner and longitudinally-shaped with two opposite longitudinal sides 11a, 11b. In the first longitudinal side 11a, a first recess 12a is present, which is part of the first heat expansion compensator 8a and which divides the first longitudinal side 11a into a first and a second side section 11a.1, 11a.2. In the first recess 12a, a first connecting web 13a is arranged, which connects the first side section 11a.1 to the second side section 11a.2 of the first longitudinal side 11a. For clarification purposes, FIG. 3 shows the first side part 6a in a detailed illustration in the area of the first recess 12a. Analogously to the first recess 12a, which is provided in the first longitudinal side 11a, a second recess 12b, which is part of the second heat expansion compensator 8b and which divides the second longitudinal side 11b into a first and a second side section 11b.1, 11b.2, is present in the second longitudinal side 11b. In the second recess 12b, a second connecting web 13b is arranged, which connects the first side section 11b.1 to the second side section 11b.2 of the second longitudinal side 11b. With respect to the longitudinal direction L, the two recesses 12a, 12b of the heat expansion compensators 8a, 8b are arranged at the same height.

[0045] As can be gathered from the illustrations of FIGS. 2 and 3, the two recesses 12a, 12b in each case have a triangular geometry in the top view onto the side part 6a. The two connecting webs 13a, 13b in each case have a V-shaped geometry, wherein the tip of the V points inwards, towards the side part 6a. The two V-shaped connecting webs 13a, 13b are arranged in the respective recess 12a, 12b in such a way that two passage slits 14a, 14b, which are arranged in a V-shaped manner and which extend the slit-like aperture towards the longitudinal side of the side part, are formed in the recess 12a, 12b in the top view onto the side part 6a.

[0046] As shown in the example of FIG. 2, the first slit-like aperture 9a and the second sit-like aperture 9b can be arranged at an obtuse intermediate angle relative to one another. In variations thereto, an acute or right intermediate angle is conceivable as well. The third slit-like aperture 9c can extend transversely, preferably orthogonally to the longitudinal sides 11a, 11b of the first side part 6aas shown in FIG. 2and thus also orthogonally to the longitudinal direction L. The third slit-like aperture 9c preferably in each case forms an acute intermediate angle with the first and the second aperture 9a, 9b.

[0047] FIG. 4 shows the heat exchanger 1 of FIG. 1 from another viewing angle, in which the second side part 6b can be seen in the front. FIG. 5 shows the second side part 6b analogously to FIG. 2 in a top view along the stacking direction S. As can be seen in FIGS. 2 and 5, the second side part 6b differs from the first part 6a by a plate collar 16, which protrudes at an angle from a plate bottom 15 of the second side part 6b. Such a plate collar 16 is not present in the first side part 6a, i.e. the first side part 6a is embodied in a substantially flat manner. As illustrated in FIG. 6, which shows the second side part 6b in a side view, the plate collar 16 can protrude at a right angle from the plate bottom 15. It can furthermore be gathered from the side view of FIG. 6 that the heat expansion compensators 8a, 8b are arranged in the plate collar 16 with the recesses 12a, 12b and the connecting webs 13a, 13b. The predetermined breaking point 7, in contrast, is arranged completely in the plate bottom 15.

[0048] Attention shall be turned below to the illustrations of FIGS. 2 and 5. According to this, the first and second heat expansion compensator 8a, 8b comprising the two apertures 9a, 9b and the predetermined breaking point 7 thus form a heat expansion compensating device 17. Provision is made in the first side part 6a according to FIG. 2 as well as in the second side part 6b according to FIG. 5 for two such heat expansion compensating devices 17, 17 and they are arranged at a distance to one another along the longitudinal direction L. The two heat expansion compensating devices 17, 17 can preferably be arranged axially symmetrically to one another with respect to an axis of symmetry A. which extends perpendicular to the longitudinal direction L.

[0049] FIGS. 7 and 8 show a variation of the side parts 6a, 6b, as it can preferably be used in a coolant cooler. To avoid unnecessary text repetitions, only the first side part 6a is shown in FIGS. 7 and 8 in an exemplary manner. Analogously to the figures of FIG. 2, FIG. 7 thereby shows the first side part 6a in a top view along the stacking direction S, and analogous to FIG. 4, FIG. 8 shows the first side part 6 in a side view. In the case of the variation according to FIGS. 7 and 8, the first side part 6a also comprises a first and a second heat expansion compensator 8a, 8b as well as a first and a second aperture 9a, 9b. The two end sections 18a, 18b of the two apertures 9a, 9b, which face one another, and which are arranged at a distance to one another, thereby form a part of the predetermined breaking point 7. The wall thickness of the plate bottom 15 of the first side part 6a is reduced with respect to the complementary areas in an area 19 between the two end sections 18a, 18b, which is also part of the predetermined breaking point 7. In the example of FIG. 7, said area 19, into which the two end sections 18a, 18b of the two slit-like apertures 9a, 9b lead as well, has the geometry of a circle in the top view.