A heat exchange device

Abstract

This invention discloses a heat exchange device, including a heat exchange core and a connecting flange connected to the heat exchange core. The connecting flange has a fluid inlet channel and a receiving groove, a portion of which overlaps with the fluid inlet channel, and the projected area of ​​the overlapping portion on the cross-section of the fluid inlet channel is equal to the area of ​​the cross-section of the fluid inlet channel. A filter assembly is provided within the receiving groove, the filter assembly including a filter screen and a sealing cover, the sealing cover being sealed to the wall of the receiving groove. By providing a filter assembly within the receiving groove that intersects with the fluid inlet channel, the fluid flowing into the heat exchange device is filtered, preventing impurities from damaging the heat exchange device.

Description

Technical Field

[0001] This invention relates to the field of heat exchange, and particularly to a heat exchange device. Background Technology

[0002] A heat exchanger is a component of an automotive thermal management system. One type of heat exchanger includes a heat exchanger and a valve core assembly, with the heat exchanger and valve core assembly fixed together. The fluid flowing into the heat exchanger may contain impurities. During use, these impurities can damage the heat exchanger, affecting its function and shortening its lifespan. Summary of the Invention

[0003] To address the problem of impurities damaging heat exchange devices, a heat exchange device is provided.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A heat exchange device includes a heat exchange core and a connecting flange connected to the heat exchange core. The connecting flange has a fluid inlet channel and a receiving groove, a portion of which overlaps with the fluid inlet channel, and the projected area of ​​the overlapping portion on the cross-section of the fluid inlet channel is equal to the area of ​​the cross-section of the fluid inlet channel. A filter assembly is disposed within the receiving groove, the filter assembly including a filter screen and a sealing cap. A portion of the filter screen is located in the overlapping portion of the fluid inlet channel with the receiving groove, and the sealing cap is sealed to the corresponding wall of the receiving groove, confining the filter screen within the receiving groove. By providing a filter assembly on the connecting flange of the heat exchange device, the incoming fluid is filtered, thereby protecting the heat exchange device from impurities and extending its service life.

[0006] The filter assembly includes a support plate, the support plate includes a flow section, the flow section has a filter through hole penetrating the support plate, a portion of the filter screen is located in the filter through hole, and the filter screen is detachably connected to the wall portion corresponding to the filter through hole.

[0007] The support plate also includes a blocking portion, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the fluid inlet channel at the overlap of the fluid inlet channel and the receiving groove.

[0008] The wall portion corresponding to the filter through-hole is provided with two retaining flanges. The filter screen includes a filter portion and a main body wall portion. The main body wall portion is provided with a snap-fit ​​flange, which is located between the two retaining flanges.

[0009] The sealing cap is detachably connected to the wall portion corresponding to the receiving groove.

[0010] The sealing cover has a main body and a connecting part. The connecting part has an external thread, and the inner wall of the receiving groove has an internal thread that matches the external thread of the connecting part. The sealing cover and the wall of the receiving groove are threadedly connected by the external thread and the internal thread.

[0011] The main body is provided with a sealing ring and a groove, and the sealing ring is at least partially located in the groove.

[0012] The sealing cover is connected to the support plate via a connector; the connector is rotatably connected to the sealing cover; the connector is provided with at least two buckles, which are distributed along the circumferential direction of the end of the connector, and the connecting part is provided with a slot corresponding to the buckle, which is located inside the connecting part.

[0013] The filter assembly also includes a rubber layer that covers the outer surface of the support plate.

[0014] The receiving groove is provided with two layers of sealing gaskets. Each sealing gasket has a connecting part and a connecting hole that penetrates the sealing gasket. Part of the connecting part is located in the fluid inlet channel. The filter through hole is connected to the two connecting holes respectively. The filter assembly is located between the two layers of sealing gaskets. The support plate and the sealing gasket are interference-fitted.

[0015] A filter assembly is installed in the receiving tank that intersects with the fluid inlet channel to filter the fluid flowing into the heat exchange device, prevent impurities from damaging the heat exchange device, and thus protect the heat exchange device for normal use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the heat exchange device in one embodiment;

[0017] Figure 2 This is a structural diagram of the heat exchanger before the filter assembly and sealing cover are fully installed.

[0018] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0019] Figure 4 yes Figure 1 A top view of the filter assembly of the heat exchange device shown;

[0020] Figure 5 yes Figure 4 A cross-sectional view of the support plate in the filter assembly;

[0021] Figure 6 yes Figure 4 A cross-sectional schematic diagram of the filter screen in the filter assembly;

[0022] Figure 7 yes Figure 1 A front view of the sealing cover of the heat exchange device shown;

[0023] Figure 8 yes Figure 1 A side view of the sealing cover of the heat exchanger shown;

[0024] Figure 9 yes Figure 1 The diagram shown is a right-side view of the heat exchanger without the sealing cover installed.

[0025] Figure 10 This is a right-side view of the heat exchange device in another embodiment without the sealing cover installed;

[0026] Figure 11 yes Figure 10 A top view of the sealing gasket of the heat exchange device shown;

[0027] Figure 12 yes Figure 7 The diagram shows a cross-sectional view of the sealing cap.

[0028] Figure label:

[0029] Heat exchange core 11, base plate 12, connecting flange 13, valve core assembly 14; fluid inlet channel 15;

[0030] 1. Receiving tank; 2. Sealing cover; 3. Filter assembly; 4. Connector; 41. Buckle; 42. Slot;

[0031] Main body 21, connecting part 22, torsion flange 23;

[0032] Support plate 31, blocking part 32, flow part 33, filter through hole 34, filter screen 35;

[0033] Sealing ring 211, groove 212;

[0034] 311 flange, 351 snap-fit ​​flange, 352 filter part, 353 main body wall part;

[0035] Sealing gasket 10, connecting part 101, connecting hole 102. Detailed Implementation

[0036] The specific implementation methods are described in detail below with reference to the accompanying drawings. Figure 1-9As shown, a heat exchange device includes a heat exchange core 11, a base plate 12, a connecting flange 13, and a valve core assembly 14. The heat exchange core 11 is fixedly connected to the base plate 12, the connecting flange 13 is fixedly connected to the heat exchange core 11, and the valve core assembly 14 is fixedly connected to the connecting flange 13. The connecting flange 13 has a fluid inlet channel 15 and a receiving groove 1. The opening end of the receiving groove is located on the side wall of the connecting flange, and a portion of the receiving groove 1 overlaps with the fluid inlet channel 15. The projected area of ​​the overlapping portion on the cross-section of the fluid inlet channel 15 is equal to the area of ​​the cross-section of the fluid inlet channel 15.

[0037] The receiving tank 1 is also equipped with a filter assembly 3, which includes a support plate 31, a filter screen 35, and a sealing cover 2. The filter screen is located at the portion of the fluid inlet channel that overlaps with the receiving tank. The sealing cover 2 is at least partially located at the open end of the receiving tank 1, and the sealing cover 2 is sealed to the wall corresponding to the open end of the receiving tank 1, thus confining the filter screen within the receiving tank.

[0038] like Figure 7 As shown, in this embodiment, the sealing cover 2 includes a main body 21 and a connecting part 22. The connecting part 22 is provided with an external thread, which cooperates with the internal thread provided on the wall corresponding to the receiving groove 1, so that the sealing cover 2 can be sealed and fixed with the connecting flange 13.

[0039] A connector 4 can be provided between the sealing cap 2 and the support plate 31, and the connector is rotatably connected to the sealing cap. The connector has at least two buckles 41, which are distributed along the circumferential direction of the end of the connector. The connecting part has a corresponding groove 42, which is located inside the connecting part. The buckles engage with the groove, thereby allowing the connector to rotate relative to the sealing cap in the axial direction. The other end of the connector 4 is connected and fixed to the end of the support plate 31 facing out of the receiving groove. During the process of unscrewing the sealing cap 2, since the connector 4 is connected to the filter assembly 3, part of the filter assembly 3 can be slowly brought out of the receiving groove 1. When the support plate 31 needs to re-enter the receiving groove 1, the sealing cap 2 abuts against the support plate 31 through the connector 4, and the support plate 31 is pushed into the receiving groove 1 while the sealing cap 2 is being screwed on. (In addition, it is easy to imagine that the sealing cap and the support plate can also be directly connected by a rope or chain.)

[0040] like Figure 4 As shown, the support plate 31 includes a flow section 33, which has a filter through-hole 34 penetrating the support plate 31. A portion of the filter screen 35 is located in the filter through-hole 34, and the filter screen 35 is detachably connected to the wall portion corresponding to the filter through-hole 34. When the support plate 31 is housed in the receiving groove 1, a portion of the flow section 33 is located in the fluid inlet channel 15. When the fluid passing through the fluid inlet channel 15 passes through the filter screen 35 located in the filter through-hole 34, impurities are blocked by the filter screen 35.

[0041] The support plate 31 also has a blocking portion 32, the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the fluid inlet channel 15 of the overlapping portion. During assembly, the blocking portion 32 of the support plate 31 is inserted into the receiving groove 1 as the front end. When it is necessary to replace the filter screen 35, the support plate 31 is partially pulled out to expose the flow portion 33 for filter screen replacement. At the same time, the blocking portion 32 remains in the receiving groove 1. The blocking portion 32 can cut off the fluid inlet channel 15, which not only prevents fluid leakage but also prevents unfiltered fluid from flowing out of the fluid inlet channel 15.

[0042] To improve sealing, the outer surface of the support plate 31 is covered with a rubber layer. One side of the rubber layer is in contact with the outer surface of the support plate, and the other side is in contact with the wall of the receiving groove. This prevents fluid from leaking between the support plate and the wall of the receiving groove when the fluid passes through the filter hole 34 from the fluid inlet channel 15. The main body 21 of the sealing cover 2 is also provided with a sealing ring 211 on the side facing the receiving groove 1, and a groove 212 is also provided. The sealing ring is partially embedded in the groove to prevent it from shifting and affecting the sealing performance.

[0043] like Figure 6 As shown, the filter screen 35 includes a filter part 352 and a main body wall part 353. The main body wall part 353 of the filter screen 35 is provided with a snap-fit ​​flange 351. By cooperating with two retaining flanges 311 provided on the wall part corresponding to the filter through hole 34, the filter screen 35 is fixed by snapping the snap-fit ​​flange 351 between the two retaining flanges 311.

[0044] Figure 10 Another embodiment is shown, which differs from the above embodiment. In this embodiment, the receiving groove 1 is provided with two layers of sealing gaskets 10, and the bearing plate 31 is located between the two layers of sealing gaskets, and the bearing plate and the two layers of sealing gaskets are interference fit.

[0045] like Figure 11 As shown, the sealing gasket 10 is provided with a connecting part 101, and the connecting part 101 is provided with a connecting hole 102 that penetrates the sealing gasket 10. Part of the connecting part is located in the fluid inlet channel 15, and the filter through hole 34 is connected to the two connecting holes 102 respectively.

[0046] The other parts of this embodiment are the same as or similar to the foregoing embodiments, and will not be described in detail here.

[0047] The above are merely specific embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention based on the above-disclosed technical content, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall still fall within the protection scope of the technical solutions of the present invention.

Claims

1. A heat exchange device, comprising a heat exchange core (11), a base plate (12), a connecting flange (13), and a valve core assembly (14), wherein the heat exchange core is fixedly connected to the base plate, the connecting flange is fixedly connected to the heat exchange core, and the valve core assembly is fixedly connected to the connecting flange; the connecting flange has a fluid inlet channel (15), characterized in that, The connecting flange is also provided with a receiving groove (1), the opening end of the receiving groove is located on the side wall of the connecting flange, a part of the receiving groove overlaps with the fluid inlet channel, and the projected area of ​​the overlapping part on the cross-section of the fluid inlet channel is equal to the area of ​​the cross-section of the fluid inlet channel; a filter assembly (3) is provided in the receiving groove, the filter assembly includes a support plate (31), a filter screen (35) and a sealing cover (2), the support plate includes a flow part (33), the flow part is provided with a filter through hole (34) penetrating the support plate (31), a part of the filter screen (35) is located in the filter through hole, and the filter screen is detachably connected to the wall corresponding to the filter through hole; a part of the filter screen is located in the part of the fluid inlet channel that overlaps with the receiving groove, the sealing cover is sealed to the wall corresponding to the receiving groove, and the filter screen is confined to the receiving groove; The support plate (31) also includes a blocking part (32), the cross-sectional area of ​​which is larger than the cross-sectional area of ​​the fluid inlet channel of the overlapping part of the fluid inlet channel (15) and the receiving groove (1); during assembly, the blocking part (32) is inserted into the receiving groove (1) as the front end.

2. The heat exchange device according to claim 1, characterized in that, The wall portion corresponding to the filter through hole (34) is provided with two retaining flanges (311). The filter screen (35) includes a filter portion (352) and a main body wall portion (353). The main body wall portion is provided with a snap-fit ​​flange (351), which is located between the two retaining flanges.

3. The heat exchange device according to claim 1, characterized in that, The sealing cap (2) is detachably connected to the wall of the receiving groove (1).

4. A heat exchange device according to claim 3, characterized in that, The sealing cap (2) is provided with a main body (21) and a connecting part (22). The connecting part is provided with an external thread, and the inner wall of the receiving groove (1) is provided with an internal thread that is adapted to the external thread of the connecting part. The sealing cap and the wall of the receiving groove are connected by the external thread and the internal thread.

5. A heat exchange device according to claim 4, characterized in that, The main body (21) is provided with a sealing ring (211) and a groove (212), wherein the sealing ring is at least partially located in the groove.

6. A heat exchange device according to claim 4, characterized in that, The sealing cover (2) is connected to the bearing plate (31) via a connector (4); the connector is rotatably connected to the sealing cover; the connector is provided with at least two buckles (41), the buckles are distributed along the circumferential direction of the end of the connector, and the connecting part is provided with a slot (42) corresponding to the buckle, the slot being located inside the connecting part.

7. A heat exchange device according to claim 1, characterized in that, The filter assembly (3) also includes a rubber layer that covers the outer surface of the support plate (31).

8. A heat exchange device according to claim 1, characterized in that, The receiving groove (1) is provided with two layers of sealing gaskets (10). The sealing gaskets are provided with a connecting part (101). The connecting part is provided with a connecting hole (102) that penetrates the sealing gasket (10). Part of the connecting part is located in the fluid inlet channel (15). The filter through hole (34) is connected to the two connecting holes (102) respectively. The support plate (31) is located between the two layers of sealing gaskets. The support plate and the sealing gaskets are interference fit.

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