A novel L-shaped three-chamber expansion kettle

Abstract

This utility model relates to the technical field of expansion tanks, and in particular to a novel L-shaped three-chamber expansion tank. Its L-shaped structure allows it to fit into the compact cabin space of new energy vehicles, reducing interference with wiring harnesses or pipes compared to traditional tanks, increasing layout flexibility, and significantly reducing the additional mounting brackets and space required for three independent tanks. Furthermore, by dividing each chamber into multiple small areas, the range and amplitude of coolant free flow are limited, significantly reducing coolant sloshing and impact noise, and improving cabin quietness. The tank includes a lower tank structure, an upper tank mechanism, and three sets of lids. The upper tank mechanism is mounted on the lower tank structure and forms three independent walls. All three sets of lids are mounted on the upper tank mechanism to prevent coolant overflow.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion kettles, and in particular to a novel L-shaped three-chamber expansion kettle. Background Technology

[0002] The expansion tank is a component of the battery cooling system. Its main function is to store the coolant in the cooling system and absorb the portion of the coolant that expands due to heat through its own expansion space. After the coolant temperature drops, it replenishes the amount of coolant that contracts in the circuit, thereby balancing the pressure of the entire system.

[0003] Existing expansion kettles, such as the one disclosed in utility model patent application number 202421700253.5, mainly include a kettle body. The side surface of the kettle body has a liquid inlet, the bottom surface of the kettle body has a liquid outlet, and the side surface of the kettle body has a mounting bracket. The mounting bracket is fixedly and slidably connected to a crossbeam. The kettle body is equipped with a safety valve, which is connected to a vent pipe. In use, the mounting bracket is adjusted and fixed in position to the crossbeam. Then, liquid is added through the liquid inlet and discharged through the liquid outlet. When the internal pressure of the kettle body rises above the pressure relief value of the safety valve or for other reasons, the liquid overflows from the kettle body and flows out through the vent pipe.

[0004] However, traditional new energy vehicles have independent circuit requirements, such as circuits for the battery, motor, and interior heating. The traditional approach is to configure separate coolant reservoirs, which takes up a lot of space. Moreover, the independent coolant reservoirs are mostly cylindrical or cuboid, making it difficult to fit into the corners or irregular areas of the vehicle, resulting in wasted space. Furthermore, the expansion tanks in traditional new energy vehicles lack effective internal support and are usually simple hollow plastic shells. Their structural strength depends on the shape of the shell, wall thickness, external brackets, and installation. At the same time, the sloshing of coolant inside also causes NVH noise problems. Utility Model Content

[0005] To address the aforementioned technical issues, this utility model provides a novel L-shaped three-chamber expansion tank that adapts to the compact engine compartment space of new energy vehicles through its L-shaped structure. This reduces interference from traditional coolant reservoirs with wiring harnesses or pipes, enhances layout flexibility, significantly reduces the additional mounting brackets and space required for three independent coolant reservoirs, and by dividing each cavity into multiple small areas, limits the range and amplitude of coolant free flow, significantly reducing coolant sloshing and impact noise and improving cabin quietness.

[0006] This utility model discloses a novel L-shaped three-chamber expansion tank, comprising a lower tank structure, an upper tank mechanism, and three sets of lids. The upper tank mechanism is mounted on the lower tank structure, forming three independent walls. The three sets of lids are all mounted on the upper tank mechanism to prevent coolant overflow. The lower tank structure and the upper tank mechanism are injection molded separately and then assembled into a whole. The three sets of lids are then installed separately. The device is then installed as a whole on a new energy vehicle and connected to the cooling system of the battery, motor, and air conditioning circuit. This not only significantly reduces the additional mounting brackets and space required for the three independent tanks, but also provides higher overall rigidity and structural strength, restricts the range and amplitude of free flow of coolant, significantly reduces the sloshing and impact noise of coolant, and improves cabin quietness.

[0007] Preferably, the lower tank structure includes a lower outer shell, two sets of first partitions, and multiple sets of first support plates. The two sets of first partitions are installed inside the lower outer shell, dividing the lower outer shell into three independent cavities. The multiple sets of first support plates are respectively set in the three cavities. The lower tank structure is integrally injection molded. The lower outer shell and the upper tank mechanism are assembled into a whole. The three independent cavities share the lower outer shell, which significantly reduces the additional mounting brackets and space required for the three independent tanks, reduces the overall volume, saves materials, lowers costs, and makes the vehicle lighter, which helps to reduce the weight of the whole vehicle. By setting multiple sets of first support plates to divide each cavity into multiple small areas, the range and amplitude of free flow of coolant are limited, which can significantly reduce the sloshing and impact noise of coolant and improve the quietness of the cabin.

[0008] Preferably, the upper tank body mechanism includes an upper outer shell, two sets of second partitions, and multiple sets of second support plates. The two sets of second partitions are installed inside the upper outer shell, dividing the upper outer shell into three independent cavities. The multiple sets of second support plates are respectively set in the three cavities. The upper tank body mechanism is integrally injection molded. The lower outer shell and the upper outer shell are installed as a whole. The three independent cavities share the lower outer shell, which significantly reduces the additional mounting brackets and space required for the three independent tanks, reduces the overall volume, saves materials, reduces costs, and makes the vehicle lighter, which helps to reduce the weight of the whole vehicle. By setting multiple sets of first and second support plates, each cavity is divided into multiple small areas, which restricts the range and amplitude of free flow of coolant, which can significantly reduce the sloshing and impact noise of coolant and improve the quietness of the cabin.

[0009] Preferably, both the lower and upper outer shells are L-shaped structures. The L-shaped structure can adapt to the compact engine compartment space of new energy vehicles. The space around the car engine compartment or battery pack is extremely compact and irregular. The L-shaped structure can perfectly fit corners or specific shaped spaces, providing great flexibility, reducing the interference of traditional kettles on wiring harnesses or pipes, and improving layout freedom. In addition, the L-shaped structure, together with multiple sets of first support plates and multiple sets of second support plates, connects the three cavities into a whole, providing high overall rigidity and structural strength, enhancing the structure's compressive resistance. Under the condition of continuous and severe vibration during vehicle operation, it can effectively prevent shell deformation and cracking. Compared with three independent kettles, it can resist vibration and impact better. At the same time, the internal support distributes the load, making the entire kettle structure more robust.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the lower kettle body structure and the upper kettle body mechanism are injection molded and then assembled into a whole, and three sets of kettle lids are installed separately. The whole device is installed on the new energy vehicle and connected to the battery, motor, space heating and other circuit cooling systems. This not only significantly reduces the additional installation brackets and space required for three independent kettles, but also provides higher overall rigidity and structural strength, restricts the range and amplitude of free flow of coolant, significantly reduces the sloshing and impact noise of coolant, and improves cabin quietness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0012] Figure 2 This is a cross-sectional axonometric structural diagram of the lower body structure of this utility model;

[0013] Figure 3 This is a cross-sectional axonometric structural diagram of the upper pot body mechanism of this utility model;

[0014] Figure 4 This is a schematic diagram of the isometric structure of this utility model.

[0015] The attached diagram is labeled as follows: 01, lower body structure; 11, lower outer shell; 12, first partition; 13, first support plate; 02, upper body structure; 21, upper outer shell; 22, second partition; 23, second support plate; 03, lid. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] Example 1

[0018] This utility model discloses a novel L-shaped three-cavity expansion kettle, comprising a lower kettle body structure 01; an upper kettle body mechanism 02 and three sets of kettle lids 03. The upper kettle body mechanism 02 is mounted on the lower kettle body structure 01 and forms three independent walls. The three sets of kettle lids 03 are all mounted on the upper kettle body mechanism 02 to prevent cooling water from overflowing. The lower kettle body structure 01 includes a lower outer shell 11, two sets of first partitions 12, and multiple sets of first support plates 13. The two sets of first partitions 12 are installed inside the lower outer shell 11, dividing the lower outer shell 11 into three independent cavities. The multiple sets of first support plates 13 are respectively disposed in the three cavities. The lower kettle body structure 01 is integrally injection molded. The upper kettle body mechanism 02 includes an upper outer shell 21, two sets of second partitions 22, and multiple sets of second support plates 23. The second partition 22 is installed inside the upper outer shell 21, dividing the upper outer shell 21 into three independent cavities. Multiple sets of second support plates 23 are respectively set in the three cavities. The upper tank body mechanism 02 is integrally injection molded. When it is working, the lower outer shell 11 and the upper outer shell 21 are assembled into a whole. The three independent cavities share the lower outer shell 11, which significantly reduces the additional mounting brackets and space required for the three independent tanks, reduces the overall volume, saves materials, reduces costs, and makes it lighter, which helps to reduce the weight of the whole vehicle. By setting multiple sets of first support plates 13 and second support plates 23, each cavity is divided into multiple small areas, which restricts the range and amplitude of free flow of coolant, which can significantly reduce the sloshing and impact noise of coolant and improve the quietness of the cabin.

[0019] Example 2

[0020] like Figures 1 to 4As shown, this utility model discloses a novel L-shaped three-chamber expansion tank, based on embodiment 1; it further includes an L-shaped lower outer shell 11 and an L-shaped upper outer shell 21. During operation, the lower outer shell 11 and the upper outer shell 21 are assembled into a single unit, with the three independent chambers sharing the lower outer shell 11. This significantly reduces the additional mounting brackets and space required for the three independent tanks, reducing the overall volume, saving materials, lowering costs, and making the vehicle lighter, thus contributing to overall vehicle weight reduction. By setting multiple sets of first support plates 13 and second support plates 23, each chamber is divided into multiple small areas, limiting the range and amplitude of free coolant flow, significantly reducing coolant sloshing and impact noise, and improving cabin quietness. The L-shaped structure can... Adapted to the compact engine compartment space of new energy vehicles, where the space around the engine compartment or battery pack is extremely compact and irregular, the L-shaped structure can perfectly fit corners or specific shaped spaces, providing great flexibility, reducing interference with wiring harnesses or pipes compared to traditional kettles, and improving layout freedom. Furthermore, the L-shaped structure, together with multiple sets of first support plates 13 and multiple sets of second support plates 23, connects the three cavities into a whole, providing high overall rigidity and structural strength, and enhancing the structure's resistance to pressure. Under conditions of continuous and severe vibration during vehicle operation, it can effectively prevent shell deformation and cracking, and is more resistant to vibration and impact than three independent kettles. At the same time, the internal support distributes the load, making the entire kettle structure more robust.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A new L-shaped three-cavity expansion kettle, comprising a lower kettle body structure (01); characterized in that, It also includes an upper pot body mechanism (02) and three sets of pot lids (03). The upper pot body mechanism (02) is installed on the lower pot body structure (01) and forms three independent walls. The three sets of pot lids (03) are all installed on the upper pot body mechanism (02) to prevent cooling water from overflowing.

2. A new type of L-shaped three-cavity expansion kettle according to claim 1, characterized in that, The lower pot body structure (01) includes a lower outer shell (11), two sets of first partitions (12) and multiple sets of first support plates (13). The two sets of first partitions (12) are installed inside the lower outer shell (11) to divide the lower outer shell (11) into three independent cavities. The multiple sets of first support plates (13) are respectively set in the three cavities. The lower pot body structure (01) is integrally injection molded.

3. A new type of L-shaped three-cavity expansion kettle according to claim 1, characterized in that, The upper pot body mechanism (02) includes an upper outer shell (21), two sets of second partitions (22) and multiple sets of second support plates (23). The two sets of second partitions (22) are installed inside the upper outer shell (21) to divide the upper outer shell (21) into three independent cavities. The multiple sets of second support plates (23) are respectively set in the three cavities. The upper pot body mechanism (02) is integrally injection molded.

4. A new type of L-shaped three-cavity expansion kettle according to claim 3, characterized in that, It also includes an L-shaped structure for both the lower outer shell (11) and the upper outer shell (21).

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