A new type of expansion water kettle for vehicles

Abstract

A novel expansion water kettle for a vehicle comprises a shell, left and right inner cavities in the shell are independent of each other, and the front side area of the bottom surface of the left and right inner cavities is higher than the rear side area, a first partition plate is arranged in the middle part of the left and right inner cavities, the corresponding first partition plate divides a liquid return chamber and a liquid supply chamber in the left and right inner cavities, the first partition plate extends from the front side area of the bottom surface of the shell to the rear side area, a first liquid passing opening is arranged on the first partition plate at the position of the front side area of the bottom surface of the shell, and the first liquid passing opening communicates the liquid return chamber and the liquid supply chamber; the liquid supply opening of the left inner cavity and the liquid supply opening of the right inner cavity are respectively arranged at the rear side bottom of the corresponding liquid supply chamber, and the liquid return opening of the left inner cavity and the liquid return opening of the right inner cavity are respectively arranged at the rear side of the corresponding liquid return chamber; so that the liquid needs to bypass the first liquid passing opening to enter the liquid supply chamber, the flow path of the liquid in the shell is increased, the bubbles are facilitated to be eliminated, the bubbles entering the liquid supply opening are reduced, and the influence on the cooling system is reduced.

Description

Technical Field

[0001] This utility model relates to an expansion tank, specifically a novel expansion tank for vehicles. Background Technology

[0002] In related technologies, electric vehicles often have two to three cooling water circuits, requiring two to three separate expansion tanks to complete the closed loop of the entire cooling circuit. Therefore, the expansion tanks require more space, increasing the cost and weight of the expansion tank assembly. CN215826467U, a specification for expansion tank assemblies and vehicles, integrates two expansion tanks to meet the needs of electric vehicles. However, in some hybrid vehicles, the expansion tank needs to supply coolant to both the generator and the engine. Since the return and outlet are in the same cavity, air bubbles generated during backflow can easily flow directly into the system from the outlet, affecting the system's cooling effect. Utility Model Content

[0003] To address the problems in the prior art, this utility model provides a novel expansion tank for vehicles, the purpose of which is to prevent air bubbles from directly entering the outlet.

[0004] A novel expansion tank for vehicles includes a housing with a left inner cavity and a right inner cavity formed within the housing for storing coolant. The left and right inner cavities are independent of each other, and the front area of ​​the bottom surface of both is higher than the rear area. A first partition is arranged in the middle of the left and right inner cavities, and the first partition divides each inner cavity into a return chamber and a supply chamber. The first partition extends from the front area of ​​the bottom surface of the housing to the rear area. A first liquid outlet is provided on the first partition at the front area of ​​the bottom surface of the housing, and the first liquid outlet connects the return chamber and the supply chamber. The supply outlets of the left and right inner cavities are located at the rear bottom of the corresponding supply chambers, and the return outlets of the left and right inner cavities are located at the rear of the corresponding return chambers.

[0005] Furthermore, the front and rear regions are located at the middle and bottom of the shell's vertical height, respectively.

[0006] Furthermore, a minimum liquid level line and a maximum liquid level line are provided in the middle of the outer wall of the shell, and the height of the minimum liquid level line is higher than the front area of ​​the bottom surface of the shell.

[0007] Furthermore, the shell is formed by the docking of an upper shell and a lower shell, with the lowest liquid level line located on the lower shell.

[0008] Furthermore, the return port of the left inner cavity is located at the bottom rear side of the corresponding return chamber, and the return port of the right inner cavity is located at the top rear side of the corresponding return chamber.

[0009] Furthermore, the left inner cavity and the right inner cavity are separated by a double-layered second partition, with a gap between the double-layered second partition. A first vent is provided on the bottom wall of the shell to communicate with this gap.

[0010] Furthermore, a connecting plate is integrally provided in the middle of the shell. The connecting plate is arranged from left to right and passes through the left inner cavity and the right inner cavity. A second liquid outlet is opened on the connecting plate at the position corresponding to the liquid supply chamber and the liquid return chamber.

[0011] Furthermore, a liquid inlet is provided on the top surface of the shell at the positions corresponding to the left and right inner cavities, and a pressure relief cap is installed on the liquid inlet.

[0012] Furthermore, the liquid inlet is located on the front side of the shell, and a connecting post is provided inside the shell at the liquid inlet. The upper and lower ends of the connecting post are integrally connected to the top and bottom walls of the shell, respectively.

[0013] Furthermore, the connecting column has a hollow structure, and a second vent is provided on the bottom wall of the shell for communicating with the interior of the connecting column.

[0014] The beneficial effects of this utility model are as follows: by setting independent return liquid chamber and supply liquid chamber inside the shell, and setting the first liquid outlet at a higher position on one side of the shell, the liquid can enter the supply liquid chamber only after bypassing the first liquid outlet, which increases the flow path of the liquid in the shell, thereby facilitating the elimination of bubbles and hindering the bubbles, thereby reducing the number of bubbles entering the supply liquid outlet and reducing the impact on the cooling system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a horizontal cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a longitudinal sectional view of the present invention. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The directional terms such as left, center, right, top, and bottom in the embodiments of the present invention are only relative concepts or referenced to the normal use state of the product, and should not be considered restrictive.

[0019] A new type of expansion tank for vehicles, combined with Figure 2 and Figure 3 As shown, the device includes a housing 1, within which a left inner cavity 17 and a right inner cavity 16 are formed for storing cooling water. The left and right inner cavities 17 and 16 are independent of each other, and the front region of their bottom surfaces is higher than the rear region. A first partition 14 is arranged in the middle of the left and right inner cavities 17 and 16, respectively dividing each cavity into a return chamber and a supply chamber. The first partition 14 extends from the front region to the rear region of the bottom surface of the housing 1. A first liquid outlet 10 is provided on the first partition 14 at the position of the front region of the bottom surface of the housing 1, connecting the return chamber and the supply chamber. The front and rear regions are located at the middle and bottom positions of the vertical height of the housing 1, respectively. A minimum liquid level line 6 and a maximum liquid level line 7 are provided in the middle of the outer wall of the housing 1, with the minimum liquid level line 6 being higher than the front region of the bottom surface of the housing 1. Figure 1 As shown, the liquid supply port of the left inner cavity 17 and the liquid supply port of the right inner cavity 16 are respectively located at the rear bottom of the corresponding liquid supply chamber, and the liquid return port of the left inner cavity 17 and the liquid return port of the right inner cavity 16 are respectively located at the rear of the corresponding liquid return chamber; specifically, the liquid return port of the left inner cavity 17 is located at the rear bottom of the corresponding liquid return chamber, and the liquid return port of the right inner cavity 16 is located at the rear top of the corresponding liquid return chamber. In this embodiment, the liquid return port of the right inner cavity 16 is located on the top surface of the corresponding liquid return chamber; the liquid return chamber of the left inner cavity 17, the liquid supply chamber of the left inner cavity 17, the liquid return chamber of the right inner cavity 16, and the liquid supply chamber of the right inner cavity 16 are arranged sequentially from left to right in the shell 1; since four deformable cavities are formed in the shell 1 sequentially from left to right, in order to facilitate the two adjacent spaces in the middle The sidewalls of the housing 1 are deformed. The left inner cavity 17 and the right inner cavity 16 are separated by a double-layer second partition 15, with a gap between the double-layer second partition 15. A first vent 18 is provided on the bottom wall of the housing 1 to communicate with the gap. In order to control the deformation of the housing 1, a connecting plate 12 is integrally provided in the middle of the housing 1. The connecting plate 12 is provided from left to right and passes through the left inner cavity 17 and the right inner cavity 16. The connecting plate 12 connects the return liquid chamber, the supply liquid chamber and the double-layer second partition 15, thereby strengthening the integrity of the housing 1 and avoiding excessive contraction and expansion in the middle of the housing 1. A second liquid outlet 13 is provided on the connecting plate 12 at the position corresponding to the supply liquid chamber and the return liquid chamber. The bottom edge of the second liquid outlet 13 is higher than the bottom surface of the housing 1.

[0020] The top surface of the housing 1 has a liquid inlet corresponding to the left inner cavity 17 and the right inner cavity 16. A pressure relief cover 2 is installed on the liquid inlet. To ensure the stability of the structure at the pressure relief cover 2, the liquid inlet is located on the front side of the housing 1. A connecting post 9 is provided inside the housing 1 at the liquid inlet. The upper and lower ends of the connecting post 9 are integrally connected to the top wall and bottom wall of the housing 1, respectively. To improve the plasticity of the connecting post 9, the connecting post 9 is a hollow structure. A second vent 19 is provided on the bottom wall of the housing 1 for communicating with the interior of the connecting post 9.

[0021] In addition, such as Figure 1 As shown, the shell 1 is formed by the docking of the upper shell and the lower shell, and the lowest liquid level line 6 is located on the lower shell.

[0022] During operation, the return port connected to the return chamber of the left inner cavity 17 is designated as the first return port 3, the supply port connected to the supply chamber of the left inner cavity 17 is designated as the first supply port 4, the return port connected to the return chamber of the right inner cavity 16 is designated as the second return port 5, and the supply port connected to the supply chamber of the right inner cavity 16 is designated as the second supply port 8. Then, the first return port 3 and the first supply port 4 are connected to the motor battery cooling system, and the second return port 5 and the second supply port 8 are connected to the engine cooling system.

[0023] Cooling water enters the return chamber of the left inner cavity 17 from the first return port 3. The water flow impacts the liquid in the return chamber and generates bubbles. The liquid flows towards the front area of ​​the bottom surface of the housing 1, bypasses the first liquid outlet 10, and enters the corresponding supply chamber. During this process, most of the bubbles will float to the surface and burst. The liquid then flows through the second liquid outlet 13 and into the rear of the supply chamber, and supplies the motor battery cooling system through the first supply port 4. At the same time, cooling water enters the return chamber of the right inner cavity from the second return port 5. The water flow impacts the surface of the liquid in the return chamber and generates bubbles. The liquid flows towards the front area, bypasses the first liquid outlet 10, and enters the corresponding supply chamber. During this process, most of the bubbles will float to the surface and burst. The liquid then flows through the second liquid outlet 13 and into the rear of the supply chamber, and supplies the engine cooling system through the second supply port 8.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel expansion tank for vehicles, comprising a housing, characterized in that: A left inner cavity and a right inner cavity are formed within the casing for storing coolant. The left and right inner cavities are independent of each other, and the front area of ​​the bottom surface of both is higher than the rear area. A first partition is arranged in the middle of the left and right inner cavities. The first partition divides the left and right inner cavities into a return chamber and a supply chamber, respectively. The first partition extends from the front area of ​​the bottom surface of the casing to the rear area. A first liquid outlet is opened on the first partition at the front area of ​​the bottom surface of the casing. The first liquid outlet connects the return chamber and the supply chamber. The supply outlet of the left inner cavity and the supply outlet of the right inner cavity are respectively located at the rear bottom of the corresponding supply chamber. The return outlet of the left inner cavity and the return outlet of the right inner cavity are respectively located at the rear side of the corresponding return chamber.

2. The novel expansion tank for vehicles according to claim 1, characterized in that: The front and rear regions are located at the middle and bottom of the shell, respectively.

3. The novel expansion tank for vehicles according to claim 1, characterized in that: The outer wall of the shell is provided with a minimum liquid level line and a maximum liquid level line in the middle. The height of the minimum liquid level line is higher than the front area of ​​the bottom surface of the shell.

4. The novel expansion tank for vehicles according to claim 3, characterized in that: The shell is formed by the docking of an upper shell and a lower shell, with the lowest liquid level line located on the lower shell.

5. The novel expansion tank for vehicles according to claim 1, characterized in that: The return port of the left inner cavity is located at the bottom rear side of the corresponding return chamber, and the return port of the right inner cavity is located at the top rear side of the corresponding return chamber.

6. The novel expansion tank for vehicles according to claim 1, characterized in that: The left inner cavity and the right inner cavity are separated by a double-layered second partition, with a gap between the double-layered second partition. A first vent is provided on the bottom wall of the shell to communicate with this gap.

7. The novel expansion tank for vehicles according to claim 1, characterized in that: A connecting plate is integrally installed in the middle of the shell. The connecting plate is arranged from left to right and passes through the left inner cavity and the right inner cavity. A second liquid outlet is opened on the connecting plate at the position corresponding to the liquid supply chamber and the liquid return chamber.

8. The novel expansion tank for vehicles according to claim 1, characterized in that: A liquid inlet is provided on the top surface of the shell at the positions corresponding to the left and right inner cavities, and a pressure relief cap is installed on the liquid inlet.

9. The novel expansion tank for vehicles according to claim 8, characterized in that: The liquid inlet is located on the front side of the shell. Inside the shell, a connecting post is installed at the liquid inlet. The upper and lower ends of the connecting post are integrally connected to the top and bottom walls of the shell, respectively.

10. The novel expansion tank for vehicles according to claim 9, characterized in that: The connecting column has a hollow structure, and a second vent is provided on the bottom wall of the shell to communicate with the interior of the connecting column.

Images