Anti-reflux water cooling joint for new energy automobile power battery cooling system

Abstract

The utility model discloses an anti-reflux water-cooling joint for a new energy automobile power battery cooling system. The anti-reflux water-cooling joint comprises an outer shell, a first joint, a second joint, an inner cavity and an anti-reflux assembly, the two sides of the outer shell are connected with a first connector and a second connector in a screwed mode respectively, and an inner cavity is formed in the outer shell. The anti-backflow assembly comprises a supporting ring and an anti-backflow blocking piece set, the supporting ring is arranged between the first connector and the outer shell and connected with the anti-backflow blocking piece set, and the anti-backflow blocking piece set is located at the position of the inner cavity. According to the cooling system, by arranging the anti-backflow assembly, the backflow phenomenon of the cooling liquid in the system can be effectively prevented, the normal working process of the cooling system can be maintained, and the stability and reliability of the system are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water cooling joint technical field, especially relate to a kind of anti-backflow water cooling joints for new energy automobile power battery cooling system. BACKGROUND

[0002] The rapid development of new energy vehicles puts forward higher requirements on the performance of power batteries, especially in safety, stability and endurance. A large amount of heat is generated during the working process of power battery, which may cause the battery temperature to be too high, affect the service life of the battery, and even cause safety problems. Therefore, an efficient cooling system is crucial to maintain the optimal working temperature of the battery.

[0003] When the vehicle is running or charging, the coolant circulates through the water cooling joint to help remove the heat generated by the battery. However, when the cooling pump stops working or the system pressure changes, the coolant may backflow, which not only affects the cooling effect, but also may cause the air in the system to be unable to be smoothly discharged, forming air resistance, further affecting the cooling efficiency.

[0004] Therefore, the above situation needs to be solved. INVENTION CONTENT

[0005] The utility model aims at overcoming the above shortcomings, and provides an anti-backflow water cooling joint for new energy automobile power battery cooling system to prevent the backflow of coolant, thereby effectively improving the stability and reliability of the cooling system.

[0006] Technical scheme: an anti-backflow water cooling joint for new energy automobile power battery cooling system, comprising an outer shell, a first joint, a second joint, an inner cavity, an anti-backflow assembly; the outer shell is rotatably connected with the first joint and the second joint on both sides, and the inner cavity is formed in the outer shell; the anti-backflow assembly comprises a support ring and an anti-backflow baffle group, the support ring is arranged between the first joint and the outer shell, and connected with the anti-backflow baffle group, and the anti-backflow baffle group is located in the inner cavity. By setting the anti-backflow assembly, especially the anti-backflow baffle group, the backflow of coolant in the system can be effectively prevented, which helps to maintain the normal working process of the cooling system and improve the stability and reliability of the system. The design of the support ring not only helps to fix the position of the anti-backflow baffle group, but also can disperse stress to a certain extent to protect the internal components from damage.

[0007] Further, the anti-backflow baffle group is in the shape of a flat-topped cone when gathered, and comprises at least six anti-backflow baffles, which are arranged around the support ring. The anti-backflow baffle group of the present application is in the shape of a flat-topped cone, and is similar to a triangle in cross section. When the cooling liquid flows backward, the cooling liquid reaches the cone head, and the stable structure of the anti-backflow baffles cannot be easily opened and closed. Since the anti-backflow baffles can still remain stable and closed under high pressure, not only is the instant anti-backflow performance of the system improved, but the service life of the assembly is also prolonged.

[0008] Further, the anti-backflow baffles are irregular, and comprise concave surfaces and convex surfaces, and the concave surfaces and the convex surfaces of the anti-backflow baffles are mutually fitted. The concave surfaces and the convex surfaces of the anti-backflow baffles are mutually fitted, so that the anti-backflow baffles provide more closely contacted when closed, and the sealing performance is significantly improved. Even under high pressure, the backflow of the cooling liquid can be effectively prevented, and the normal operation of the cooling system is ensured.

[0009] Further, the anti-backflow assembly further comprises a group of spring hinges, and the anti-backflow baffles are connected to the support ring through the spring hinges, and are used to realize the opening and closing movement of the anti-backflow baffles. The spring hinges can provide appropriate elastic force, so that the anti-backflow baffles can be smoothly opened when the cooling liquid flows forward, and can be quickly closed when there is no forward pressure or backflow. This makes the anti-backflow assembly be able to accurately control the opening and closing state of the baffles according to actual needs, and improves the response speed and accuracy.

[0010] Further, a sealing ring is arranged between the support ring and the first connector, and the annular width of the sealing ring is equal to that of the support ring. By adding the sealing ring between the support ring and the first connector, the leakage of the cooling liquid can be effectively prevented. The existence of the sealing ring fills the possible small gap, and ensures the tightness of the connection part. Moreover, it helps to reduce the local stress concentration phenomenon, and avoids the risk of leakage caused by uneven pressure.

[0011] Further, the diameter of the anti-backflow baffle group is smaller than the minimum diameter of the inner cavity. When the cooling liquid flows forward, the anti-backflow baffle group can be completely opened. Since the diameter of the anti-backflow baffle group is smaller than the minimum diameter of the inner cavity, the cooling liquid can pass through a larger space, and the flow resistance is reduced. This helps to improve the cooling efficiency and ensure the efficient operation of the cooling system. Moreover, the anti-backflow baffle group with a smaller diameter is not easy to contact or rub with the inner wall of the inner cavity during the opening and closing process, and the risk of jamming caused by manufacturing errors or thermal expansion is reduced. This ensures that the baffles can freely open and close according to the pressure change, and improves the reliability of the system.

[0012] The above technical solutions can have the following beneficial effects:

[0013] 1. The present application sets up an anti-backflow component, which can effectively prevent the reverse flow of cooling liquid in the system, helps to maintain the normal working process of the cooling system, and improves the stability and reliability of the system; and the design of the support ring not only helps to fix the position of the anti-backflow baffle group, but also can disperse stress to a certain extent to protect the internal components from damage.

[0014] 2. The spring hinge of the present application can provide appropriate elastic force to ensure that the anti-backflow baffle can be smoothly opened when the cooling liquid flows forward, and quickly closed when there is no forward pressure or reverse flow, which makes the anti-backflow component can accurately control the opening and closing state of the baffle according to the actual needs, and improves the response speed and accuracy.

[0015] 3. The various components in the present application work cooperatively to ensure that the anti-backflow baffle group can work normally even under different working conditions and environmental conditions, such as material expansion or contraction caused by temperature change, without jamming phenomenon. The design of the whole system optimizes the space utilization, improves the cooling efficiency, reduces the wear and tear, prolongs the service life, and ensures the efficient and stable operation of the whole cooling system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an external structure diagram of an anti-backflow water cooling connector for a new energy automobile power battery cooling system.

[0017] Figure 2 It is an internal perspective structure diagram of an anti-backflow water cooling connector for a new energy automobile power battery cooling system.

[0018] Figure 3 It is a spring hinge structure diagram of an anti-backflow water cooling connector for a new energy automobile power battery cooling system.

[0019] Figure 4 It is an anti-backflow baffle group end structure diagram of an anti-backflow water cooling connector for a new energy automobile power battery cooling system.

[0020] Figure 5 It is an anti-backflow baffle explosion structure diagram of an anti-backflow water cooling connector for a new energy automobile power battery cooling system.

[0021] BRIEF DESCRIPTION OF DRAWINGS: 1-outer shell; 2-first connector; 3-second connector; 4-inner cavity; 5-anti-backflow component; 501-anti-backflow baffle; 5011-concave surface; 5012-convex surface; 502-support ring; 503-spring hinge; 6-sealing ring. DETAILED DESCRIPTION

[0022] The present application will be further illustrated below in combination with the drawings and specific embodiments. EMBODIMENT

[0023] The embodiment introduces a reverse flow prevention water cooling joint for a new energy automobile power battery cooling system, please refer to Figures 1-2 As shown in the figure, it comprises an outer shell 1, a first joint 2, a second joint 3, an inner cavity 4, and a reverse flow prevention assembly 5. The outer shell 1 is rotatably connected with the first joint 2 and the second joint 3 on both sides, and the inner cavity 4 is formed in the outer shell 1. The reverse flow prevention assembly 5 comprises a support ring 502 and a reverse flow prevention baffle group. The support ring 502 is arranged between the first joint 2 and the outer shell 1 and connected with the reverse flow prevention baffle group. The reverse flow prevention baffle group is located at the inner cavity 4, and the reverse flow prevention baffle group comprises a reverse flow prevention baffle 501.

[0024] Specifically, please refer to Figure 3 As shown in the figure, the reverse flow prevention assembly 5 further comprises a group of spring hinges 503. The reverse flow prevention baffles 501 are connected to the support ring 502 through the spring hinges 503, so as to realize the opening and closing movement of the reverse flow prevention baffles 501.

[0025] Specifically, please refer to Figure 4 As shown in the figure, the reverse flow prevention baffle group is in the shape of a flat-topped cone, comprising at least six reverse flow prevention baffles 501. The reverse flow prevention baffles 501 are arranged around the inner circle side of the support ring 502.

[0026] Specifically, please refer to Figure 5 As shown in the figure, the reverse flow prevention baffles 501 are irregularly shaped, comprising concave surfaces 5011 and convex surfaces 5012. The concave surfaces 5011 and the convex surfaces 5012 of the reverse flow prevention baffles 501 are mutually fitted.

[0027] Specifically, a sealing ring 6 is arranged between the support ring 502 and the first joint 2, and the annular width of the sealing ring 6 is equal to that of the support ring 502. The material of the sealing ring is generally rubber.

[0028] Specifically, please refer to Figure 1 As shown in the figure, the diameter of the reverse flow prevention baffle group is smaller than the minimum diameter of the inner cavity 4. This can reduce the direct contact and friction between the reverse flow prevention baffles 501 and the inner wall of the inner cavity 4, and significantly reduce the wear rate.

[0029] Specifically, the embodiment can be provided with a sealing member on the concave surfaces 5011 and the convex surfaces 5012 between the reverse flow prevention baffles 501, further enhancing the sealing effect during reverse flow.

[0030] Specifically, the working principle of the anti-backflow water cooling joint for the new energy vehicle power battery cooling system of the application is as follows: when the cooling liquid enters the water cooling joint from the first joint 2, the cooling liquid pushes the anti-backflow baffle group to open under the action of the forward pressure; the anti-backflow baffle group can be smoothly opened and closed with the assistance of the spring hinge 503, and because the diameter of the anti-backflow baffle group is smaller than the minimum diameter of the inner cavity, the cooling liquid can efficiently pass through the whole system, reducing flow resistance and turbulence, and ensuring the cooling effect.

[0031] When the cooling liquid attempts to backflow, the anti-backflow baffle group first closes under the control of the spring hinge 503, and still closes under the action of the backflow pressure, the flat-top conical design of the anti-backflow baffle 501 has concave and convex surfaces, so that the surfaces of the anti-backflow baffles 501 match each other, increasing the contact tightness, effectively preventing the reverse flow of the cooling liquid. And the appropriate elastic force provided by the spring hinge 503 further enhances the sealing performance of the anti-backflow baffle 501 when it is closed, so that it can maintain airtight closure even under high pressure conditions, preventing any backflow of the cooling liquid.

[0032] In addition, the sealing ring 6 ensures that the cooling liquid does not leak from the connection between the support ring 502 and the first joint 2 under the conditions of forward flow and backflow. That is, the sealing ring 6 not only prevents external leakage, but also enhances the sealing performance between the internal components.

[0033] The application makes full use of the power of the cooling liquid itself to control the opening and closing of the anti-backflow baffle group, without the need for an additional power source, simplifying the structure and improving the reliability of the system. The design of the whole system optimizes the space utilization, while improving the cooling efficiency, reducing wear and tear, prolonging the service life, and ensuring the efficient and stable operation of the whole cooling system.

[0034] The above only describes the preferred embodiments of the application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements can be made without departing from the principles of the application, and these improvements should also be considered as the protection range of the application.

Claims

1. A reverse flow prevention water cooling joint for a new energy vehicle power battery cooling system, characterized in that, The utility model relates to a reverse flow prevention device, including outer shell (1), first joint (2), second joint (3), inner cavity (4), anti -reverse flow subassembly (5), the both sides of outer shell (1) are respectively screwed first joint (2), second joint (3), and the inner cavity (4) is formed in outer shell (1), the anti -reverse flow subassembly (5) includes support ring (502), anti -reverse flow baffle group, support ring (502) is located between first joint (2) and outer shell (1), and is connected anti -reverse flow baffle group, and the anti -reverse flow baffle group is located at inner cavity (4).

2. The anti-backflow water cooling connector for a new energy vehicle power battery cooling system according to claim 1, characterized in that, The anti -reverse flow baffle group is in the shape of flat top cone, including at least six anti -reverse flow baffles (501), and the anti -reverse flow baffles (501) are arranged around the support ring (502).

3. The anti-backflow water cooling connector for a new energy vehicle power battery cooling system according to claim 2, characterized in that, The anti -reverse flow baffle (501) is irregular, including concave (5011), convex (5012), and the concave (5011) and the convex (5012) of the anti -reverse flow baffle (501) are mutually fitted.

4. The anti-backflow water cooling connector for a new energy vehicle power battery cooling system according to claim 1, characterized in that, The anti -reverse flow subassembly (5) further includes a group of spring hinges (503), the anti -reverse flow baffle (501) is connected on the support ring (502) through the spring hinge (503), and is used for realizing the opening and closing activity of anti -reverse flow baffle (501).

5. The anti-backflow water cooling connector for a new energy vehicle power battery cooling system according to claim 1, characterized in that, The sealing ring (6) is equal to the annular width of support ring (502) between support ring (502) and first joint (2).

6. The anti-backflow water cooling connector for a new energy vehicle power battery cooling system according to claim 1, characterized in that, The diameter of the anti -reverse flow baffle group is less than the minimum diameter of the inner cavity (4).

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