A double-channel collector structure for a triple-medium heat exchanger

Abstract

A double-channel collector structure for a three-medium heat exchanger includes a water chamber, a sealing cover, a collector pipe, a joint, a base and a sealing element. The collector pipe is arranged in the water chamber and defines a first medium chamber. The sealing cover is fixedly connected to an opening of the water chamber, and the collector pipe, the water chamber and the sealing cover define a second medium chamber. The collector pipe is provided with one or two joints on a side facing the water chamber, and is provided with a plurality of first insertion pipe openings on a side facing the sealing cover in an axial direction. The water chamber is provided with second insertion pipe openings corresponding to the first insertion pipe openings. The water chamber is provided with the base on an outer side, the base is provided with a first through hole, the sealing cover is provided with a second through hole, and an annular protrusion is arranged at an edge of the second through hole. The sealing cover is fixed to an outer end face of the base by a bolt, and the annular protrusion extends into the first through hole. The joint and the annular protrusion are provided with the sealing element to realize sealed connection. The structure simplifies the assembly process, improves the connection reliability and sealing performance, and is suitable for lightweight integrated design of a multi-medium heat exchange system.

Description

Technical Field

[0001] This utility model relates to the field of three-medium heat exchanger technology, specifically a dual-channel collector structure for a three-medium heat exchanger. Background Technology

[0002] A three-medium heat exchanger is a composite heat exchange device that enables heat exchange between three different fluid media, and it is widely used in automotive thermal management, energy conversion, and refrigeration. This type of heat exchanger typically includes manifolds on both sides, multi-layered heat exchange flat tubes arranged in the middle, and multiple flow channels for containing and guiding the three media. Among these, the manifolds, as important components in the system for collecting, distributing, or guiding the fluids, play a crucial role in connecting external piping and directing the fluid flow.

[0003] In existing technologies, common collector structures are mostly made of metal materials. They have internal cavity structures for forming media chambers, and the joints are fixed to the metal shell by welding to achieve fluid connection with external pipeline systems.

[0004] However, the above-mentioned structure still has many shortcomings in practical applications. On the one hand, the welding fixation between the joint and the metal shell is not only complex in processing and inefficient in assembly, but also prone to sealing failure due to thermal stress concentration or welding defects under long-term thermal cycling, thereby reducing the reliability and service life of the heat exchanger. On the other hand, the welding method restricts the development of lightweight and modular design, especially in scenarios such as thermal management of new energy vehicles where high requirements for structural compactness and sealing performance are shown to be significant limitations.

[0005] Therefore, in order to solve the above problems, it is urgent to propose a dual-channel collector structure that is more compact, has better sealing performance, and simplifies the manufacturing process. Summary of the Invention

[0006] This utility model addresses the shortcomings of existing technologies by proposing a dual-channel manifold structure for a three-medium heat exchanger. The specific technical solution is as follows: A dual-channel manifold structure for a three-medium heat exchanger, characterized in that: Includes a water chamber, sealing cover, manifold, connector, base, and first seal; The manifold is disposed in the water chamber, and the sealing cap is fixedly connected to the opening of the water chamber to close the water chamber. A first medium chamber is defined within the manifold, and a second medium chamber is defined between the sealing cap, the manifold, and the water chamber. The manifold is provided with one or two connectors on the side facing the water chamber. The manifold is provided with a plurality of first insertion ports evenly distributed along the axial direction on the side facing the sealing cover. The water chamber is provided with second insertion ports that correspond one-to-one with the first insertion ports. The outer side of the water chamber shell is provided with a base corresponding to the position of the connector. The base is provided with a first through hole, and the sealing cover is provided with a second through hole. The edge of the second through hole extends axially to form an annular protrusion. The sealing cap is fixed to the outer end face of the base, the annular protrusion extends into the first through hole, and a second sealing element is provided between the connector and the annular protrusion.

[0007] To better realize this utility model, it can be further made as follows: The second sealing element is a second sealing ring. A sealing groove is formed on the outer end face of the base along the periphery of the first through hole, and the second sealing element is accommodated in the sealing groove. The sealing cap is fixed to the outer end face of the base by several locking bolts to press the second sealing ring.

[0008] Furthermore: the first sealing element is a first sealing ring, and the outer periphery of the joint is provided with two annular grooves spaced apart along the axial direction, the annular grooves containing the first sealing ring.

[0009] Furthermore, the manifold is provided with two connectors on the side facing the water chamber, namely a first inlet connector and a first outlet connector.

[0010] Furthermore, the water chamber is provided with a second connector that communicates with the second medium chamber.

[0011] The beneficial effects of this utility model are as follows: First, by setting up a manifold in the water chamber and sealing it with a sealing cap that fits into the water chamber opening, an independent first medium chamber and a second medium chamber are formed, thus achieving spatial integration of multiple medium channels.

[0012] Secondly, by setting one or two selectable joints between the manifold and the water chamber, it can adapt to different three-medium heat exchanger arrangements, thereby improving the applicability and layout flexibility. The joints are connected by the annular protrusion between the base and the sealing cover, and a sealing element is set to achieve a sealed connection, avoiding welding process, reducing processing difficulty, improving the overall sealing reliability and structural integration, and is suitable for modular and lightweight heat exchanger assembly scenarios.

[0013] Third, by setting a sealing groove on the outer end face of the base and accommodating the second sealing ring therein, the combination between the sealing cover and the base has a circumferential compression sealing capability; the sealing cover is fixed to the base by bolts, which not only ensures a firm assembly, but also compresses the sealing ring by axial locking, effectively blocking possible leakage paths. Attached Figure Description

[0014] Figure 1 This is the first structural diagram of the present utility model; Figure 2 This is the second structural diagram of the present invention; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 2 A magnified view from direction B; Figure 5 This is a schematic diagram illustrating the application of this utility model; The attached diagram is as follows: 1. Left collector; 2. Right collector; 3. Double-layer heat exchange tube; 4. Water chamber; 5. Collector tube; 6. Base; 7. First inlet connector; 8. First outlet connector; 9. Second connector; 10. Sealing cap; 11. Annular protrusion; 12. First sealing ring; 13. Second sealing ring; 14. Locking bolt; 15. First medium chamber; 16. Second medium chamber; 17. First insertion port; 18. Second insertion port. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] This embodiment provides a dual-channel collector structure for a three-medium heat exchanger, as shown below. Figures 1 to 4 As shown: It includes a water chamber 4, a sealing cover 10, a manifold 5, a connector, a base 6, and a first seal.

[0018] The water chamber 4 has a strip-shaped structure and is formed by extruding plastic material to form a hollow shell structure. The collection pipe 5 is set inside the water chamber 4. The sealing cover 10 is fixedly connected to the opening of the water chamber 4 by a snap-fit ​​method, which is used to close the opening and cooperate with the collection pipe 5 to form a sealed structure.

[0019] The manifold 5 defines a first medium chamber 15 for containing a first medium. The sealing cap 10, the manifold 5, and the water chamber 4 together define a second medium chamber 16 for containing a second medium.

[0020] The manifold 5 is provided with one or two connectors on the side facing the water chamber 4. The specific number and layout of the connectors are selected according to the overall structural design of the three-medium heat exchanger.

[0021] For example, when a three-medium heat exchanger adopts a straight-through flow channel structure with one side inlet and one side outlet, a first connector is set on the manifold 5. This first connector can serve as either the first inlet connector or the first outlet connector to meet the fluid channel connection requirements.

[0022] The three-medium heat exchanger structure used in this embodiment is as follows: Figure 5 As shown, it adopts a multi-segment series "S-shaped" flow channel arrangement. To achieve the inflow and outflow of the first medium, the manifold 5 has two first connectors, namely a first inlet connector 7 and a first outlet connector 8. The first inlet connector 7 and the first outlet connector 8 are respectively installed on the side wall of the manifold 5 facing the water chamber 4, and are used to connect with the inlet and outlet pipes of the external first medium, thereby forming an independent circulation path for the first medium and realizing reliable communication between the manifold 5 and the external system.

[0023] To enable the flow of the second medium, the water chamber 4 is provided with a second connector 9 that communicates with the second medium chamber 16. This connector can be installed on any fitting surface of the water chamber 4 housing and connected to the vehicle cooling system.

[0024] The manifold 5 has several first insertion ports 17 evenly spaced along the axial direction on the side facing the sealing cover 10, for communicating with the first medium channel of the double-layer heat exchange tube 3. Correspondingly, the water chamber 4 is provided with second insertion ports 18 that correspond one-to-one with each of the first insertion ports 17, for communicating with the second medium channel of the double-layer heat exchange tube 3.

[0025] To achieve a sealed connection for the inlet and outlet of the first medium, a base 6 corresponding to the position of the first connector is provided on the outer side of the housing of the water chamber 4. The base 6 is integrally formed with the housing. A first through hole is provided on the base 6, and a second through hole is provided on the sealing cover 10. An annular protrusion 11 extends axially from the edge of the second through hole. The sealing cover 10 is fixed to the outer end face of the base 6 by a number of locking bolts 14, and the annular protrusion 11 extends into the first through hole, so that the first connector passes through the annular protrusion 11 and extends to the outside of the sealing cover 10.

[0026] A first sealing element, preferably a first sealing ring 12, is provided between the first connector and the annular protrusion 11 to achieve a sealing fit between the first connector and the sealing cover 10. In a specific structure, the outer periphery of the first connector is provided with two annular grooves spaced apart along the axial direction, and the first sealing ring 12 is embedded in one of the annular grooves, forming a composite sealing structure of axial and radial directions by cooperating with the annular protrusion 11.

[0027] Meanwhile, to improve the overall sealing performance, a sealing groove is formed on the outer end face of the base 6 around the through hole. The second sealing ring 13 is accommodated in the sealing groove and fixed to the outer end face of the base 6 by a number of locking bolts 14, so that the sealing cover 10 axially presses the second sealing ring 13, forming a circumferential seal around the first through hole between the sealing cover 10 and the base 6.

[0028] like Figure 5 The diagram shown is a schematic diagram of the application of this embodiment in a three-medium heat exchanger. The three-medium heat exchanger adopts a multi-segment series "S-shaped" first medium flow channel arrangement. The three-medium heat exchanger includes a left collector 1, a right collector 2 and a double-layer heat exchange tube 3. In this embodiment, the right collector 2 is used as the three-medium heat exchanger.

[0029] A double-layer heat exchange tube 3, with the same number as the first insertion port 17, is arranged between the left collector 1 and the right collector 2. Adjacent double-layer heat exchange tubes define a third medium channel for the flow of the third medium. The first medium channel of the double-layer heat exchange tube 3 communicates with the corresponding first insertion port 17, and the second medium channel communicates with the second insertion port 28. Heat exchange between the third medium and the first and second media is achieved through the flat tube walls, thereby completing an efficient heat exchange process between the three fluid media. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-channel manifold structure for a three-medium heat exchanger, characterized in that: Includes a water chamber, sealing cover, manifold, connector, base, and first seal; The manifold is disposed in the water chamber, and the sealing cap is fixedly connected to the opening of the water chamber to close the water chamber; A first medium chamber is defined within the manifold, and a second medium chamber is defined between the sealing cap, the manifold, and the water chamber. The manifold is provided with one or two connectors on the side facing the water chamber. The manifold is provided with a plurality of first insertion ports evenly distributed along the axial direction on the side facing the sealing cover. The water chamber is provided with second insertion ports that correspond one-to-one with the first insertion ports. The outer side of the water chamber shell is provided with a base corresponding to the position of the connector. The base is provided with a first through hole, and the sealing cover is provided with a second through hole. The edge of the second through hole extends axially to form an annular protrusion. The sealing cap is fixed to the outer end face of the base, the annular protrusion extends into the first through hole, and a second sealing element is provided between the connector and the annular protrusion.

2. The dual-channel manifold structure for a three-medium heat exchanger according to claim 1, characterized in that: The second sealing element is a second sealing ring. A sealing groove is formed on the outer end face of the base along the periphery of the first through hole, and the second sealing element is accommodated in the sealing groove. The sealing cap is fixed to the outer end face of the base by several locking bolts to press the second sealing ring.

3. The dual-channel manifold structure for a three-medium heat exchanger according to claim 2, characterized in that: The first sealing element is a first sealing ring, and the outer periphery of the joint is provided with two annular grooves spaced apart along the axial direction, and the first sealing ring is placed in the annular groove.

4. The dual-channel collector structure for a three-medium heat exchanger according to claim 3, characterized in that: The manifold is provided with two connectors on the side facing the water chamber, namely the first inlet connector and the first outlet connector.

5. The dual-channel collector structure for a three-medium heat exchanger according to claim 4, characterized in that: The water chamber is provided with a second connector that communicates with the second medium chamber.

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