Auxiliary water tank degassing device of vehicle cooling system
By setting up a partition and a vibrator in the expansion water tank, and using the vibrator to vibrate and remove bubbles in the coolant, the problem of bubbles in the prior art cannot be effectively removed and the service life of the engine is extended.
Patent Information
- Application Number
- CN202422661307.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The prior art cannot effectively remove bubbles in the coolant, resulting in problems such as corrosion of the engine cooling system and shortening the engine life.
A secondary water tank degassing device for a vehicle cooling system is designed. By installing multiple partitions and vibrators in the expansion water tank, the vibrator is used to vibrate the expansion water tank to quickly remove bubbles in the coolant.
Effectively remove bubbles in the coolant, prevent gas from causing damage to the cooling system, and prolong the engine service life.
Smart Images

Figure CN223215330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion water tanks, and more particularly to a degassing device for an auxiliary water tank of a vehicle cooling system. Background Art
[0002] In conventional vehicles, the engine cooling system has two water tanks. One is the main water tank, whose main function is to cool the antifreeze; the other is the auxiliary water tank (also called the expansion tank), which can balance the pressure of the cooling system. The auxiliary water tank can speed up the cooling system's air outlet capacity and has a vital impact on the entire cooling system.
[0003] When the engine is just started, there is some air in the cooling system. This air dissolves in the coolant and as the coolant flows in the pipes, the air will accelerate the corrosion of the water pipes, affect heat transfer and internal flow, and cause damage to the engine's cooling system, resulting in cylinder piston ring wear and cylinder head cracking, thereby shortening the engine's service life.
[0004] For example, patent number CN201120243866.7 discloses an automotive expansion tank comprising a hollow housing, an inlet pipe, and an outlet pipe. The inlet pipe has a pressure cap mounted on its outer end. The tank has two or more longitudinally arranged baffles, each integrally connected to opposite sides of the tank. Gaps are maintained between the upper portion of the baffles and the top of the tank, and between the lower portion of the baffles and the bottom of the tank. This patent eliminates air bubbles by utilizing the vehicle's jolting vibrations during driving, thereby preventing air in the cooling system from corroding the waterways. However, if bubbles form in the coolant too quickly, the vehicle's jolting vibrations alone cannot completely remove them, causing the gas in the coolant to damage the engine. Utility Model Content
[0005] The technical problem to be solved by the utility model is to address the above-mentioned deficiencies in the prior art and to provide a sub-tank degassing device for a vehicle cooling system, which can effectively remove bubbles in the coolant in the expansion tank and extend the service life of the engine.
[0006] The technical solution of the present utility model is as follows: a sub-tank degassing device of a vehicle cooling system, comprising an expansion water tank, a first pipe and a second pipe are respectively provided on one side of the expansion water tank, a water outlet pipe is provided at the bottom of the expansion water tank, a filling port is provided on the other side of the expansion water tank, and further comprising a partition, wherein the partition has multiple pieces, and the partition is installed on the inner wall of the expansion water tank, a mounting base is provided at the bottom of the expansion water tank, a vibrator is detachably provided on the mounting base, a protective cover is provided on the vibrator, the protective cover is installed at the bottom of the expansion water tank, and the inner wall of the protective cover is in contact with the side of the mounting base.
[0007] As a further improvement, there are four partitions, which are arranged at intervals on the inner walls of both sides of the expansion water tank.
[0008] Furthermore, a vibration bracket is provided on the top of the protective cover. The vibration bracket is T-shaped, and there are two vibration brackets. The tops of the two vibration brackets are respectively located between two adjacent partitions.
[0009] Furthermore, a sealing groove is provided on the side of the mounting base along its circumference, and a sealing ring is provided in the sealing groove.
[0010] Furthermore, a mounting bracket is provided on the outer wall of the expansion water tank, and a rubber pad is provided on the bottom of the mounting bracket.
[0011] Furthermore, connecting plates are provided on both sides of the mounting bracket, one end of the connecting plate is connected to the outer wall of the expansion water tank, and the other end of the connecting plate is in an arc-shaped structure.
[0012] Beneficial effects
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] The utility model discloses a degassing device for an auxiliary water tank of a vehicle cooling system. By vibrating the expansion water tank with a vibrator, bubbles in the coolant in the expansion water tank can be quickly and effectively removed. This prevents the gas in the coolant from causing irreversible damage to the cooling system when the coolant flows back to the main water tank, causing damage to the engine, and thus shortening the service life of the engine. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the top cross-sectional structure of the utility model.
[0017] Among them: 1-expansion water tank, 2-vibrator, 3-mounting base, 4-protective cover, 5-vibration bracket, 6-sealing groove, 7-partition, 8-filling port, 9-water outlet pipe, 10-first pipeline, 11-second pipeline, 12-mounting bracket, 13-connecting plate. DETAILED DESCRIPTION
[0018] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.
[0019] See Figure 1-2, a sub-tank degassing device for a vehicle cooling system, comprising an expansion tank 1, a first pipe 10 and a second pipe 11 are respectively provided on one side of the expansion tank 1, the first pipe 10 and the second pipe 11 are connected to the radiator and the engine respectively, the expansion tank 1 does not have a special water inlet pipe, and the coolant enters the expansion tank 1 through the first pipe 10 and the second pipe 11; a water outlet pipe 9 is provided at the bottom of the expansion tank 1, and a filling port 8 is provided on the other side of the expansion tank 1, and the filling port 8 is only used to add antifreeze into the expansion tank 1; the first pipe 10 and the second pipe 11 are both arranged diagonally with the water outlet pipe 9 to further optimize the effect of water vapor separation; it also includes a partition 7, the partition 7 has multiple pieces, the partition 7 is installed on the inner wall of the expansion tank 1, and the partition 7 is perpendicular to the inner wall of the expansion tank 1; a mounting base 3 is provided at the bottom of the expansion tank 1, and a vibrator 2 is detachably provided on the mounting base 3 The vibrator 2 is connected to the mounting base 3 by bolts; a protective cover 4 is provided on the vibrator 2, and the protective cover 4 is installed at the bottom of the expansion tank 1, and the inner wall of the protective cover 4 is in contact with the side of the mounting base 3; when the vibrator 2 is started, the expansion tank 1 starts to vibrate as a whole, and the coolant enters the expansion tank 1 from the first pipe 10 or the second pipe 11, and the coolant flows through the partition 7 and the vibration bracket 5. When the coolant contacts the vibrating partition 7 and the vibration bracket 5, the coolant is vibrated to discharge the air dissolved in the coolant, and the air discharged by the vibration is discharged along the first pipe 10 or the second pipe 11, and the degassed coolant flows out from the water outlet pipe 9; the expansion tank 1 is vibrated by the vibrator 2, which can quickly remove bubbles in the coolant in the expansion tank 1, and avoid the gas in the coolant causing irreversible damage to the cooling system when the coolant flows back to the main water tank, thereby affecting the engine life.
[0020] In this embodiment, there are four partitions 7, which are arranged at intervals on the inner walls of both sides of the expansion water tank 1, which can effectively increase the time that the coolant stays in the expansion water tank 1 and effectively improve the degassing efficiency.
[0021] In this embodiment, a vibration bracket 5 is provided on the top of the protective cover 4. The vibration bracket 5 is "T"-shaped, and there are two vibration brackets 5. The tops of the two vibration brackets 5 are respectively located between two adjacent partitions 7. The two vibration brackets 5 are respectively located at the two ends of the top of the protective cover 4, and the horizontal plates on the tops of the two vibration brackets 5 are respectively located between the two adjacent partitions 7, which can effectively increase the time that the coolant stays in the expansion tank 1, and at the same time increase the contact area and time of the coolant and the vibrating object, thereby effectively improving the degassing efficiency.
[0022] In this embodiment, a sealing groove 6 is provided on the side of the mounting base 3 along its circumference, and a sealing ring is provided in the sealing groove 6 to improve the sealing between the protective cover 4 and the mounting base 3 and prevent the water in the expansion tank 1 from damaging the vibrator 2.
[0023] In this embodiment, a mounting bracket 12 is provided on the outer wall of the expansion tank 1, and a rubber pad is provided at the bottom of the mounting bracket 12; the expansion tank 1 is mounted on the engine through the mounting bracket 12, and the rubber pad provided at the bottom of the mounting bracket 12 acts as a buffer to prevent the mounting bracket 12 from directly and rigidly contacting the engine and affecting the operation of the engine.
[0024] In this embodiment, connecting plates 13 are provided on both sides of the mounting bracket 12, one end of the connecting plate 13 is connected to the outer wall of the expansion water tank 1, and the other end of the connecting plate 13 is an arc-shaped structure, which improves the connection strength between the mounting bracket 12 and the expansion water tank 1. The arc-shaped structure of the other end of the connecting plate 13 can prevent the connecting plate from scratching the installation workers during installation and transportation, eliminating safety hazards.
[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.
Claims
1. A degassing device for an auxiliary water tank of a vehicle cooling system, comprising an expansion water tank (1), wherein a first pipe (10) and a second pipe (11) are respectively provided on one side of the expansion water tank (1), a water outlet pipe (9) is provided at the bottom of the expansion water tank (1), and a filling port (8) is provided on the other side of the expansion water tank (1), characterized in that: The invention also includes a partition (7), wherein the partition (7) comprises a plurality of partitions, and the partition (7) is mounted on the inner wall of the expansion water tank (1). The bottom of the expansion water tank (1) is provided with a mounting base (3), and the mounting base (3) is detachably provided with a vibrator (2). The vibrator (2) is provided with a protective cover (4), and the protective cover (4) is mounted on the bottom of the expansion water tank (1), and the inner wall of the protective cover (4) contacts the side of the mounting base (3).
2. The auxiliary water tank degassing device of a vehicle cooling system according to claim 1, characterized in that: There are four partitions (7) in total, and the four partitions (7) are arranged at intervals on the inner walls of both sides of the expansion water tank (1).
3. The auxiliary water tank degassing device of a vehicle cooling system according to claim 2, characterized in that: A vibration bracket (5) is provided on the top of the protective cover (4). The vibration bracket (5) is T-shaped, and there are two vibration brackets (5). The tops of the two vibration brackets (5) are respectively located between two adjacent partitions (7).
4. The auxiliary water tank degassing device of a vehicle cooling system according to claim 1, characterized in that: The side surface of the mounting base (3) is provided with a sealing groove (6) arranged along its circumference, and a sealing ring is provided in the sealing groove (6).
5. The auxiliary water tank degassing device of a vehicle cooling system according to claim 1, characterized in that: A mounting bracket (12) is provided on the outer wall of the expansion water tank (1), and a rubber pad is provided on the bottom of the mounting bracket (12).
6. The auxiliary water tank degassing device of a vehicle cooling system according to claim 5, characterized in that: Connecting plates (13) are provided on both sides of the mounting bracket (12), one end of the connecting plate (13) is connected to the outer wall of the expansion water tank (1), and the other end of the connecting plate (13) is in an arc-shaped structure.
Citation Information
Patent Citations
Expansion tank for automobile
CN202117757U