Automobile cooling system quick plug connector integrated with water temperature sensor

Abstract

The utility model discloses an automobile cooling system quick connector integrated with a water temperature sensor, which comprises a main body, an O-shaped ring I and a safety ring are axially arranged in a female end of the main body, and a clamping groove I and a clamping spring I which are correspondingly positioned on the axial outer side of the safety ring are radially arranged at the female end of the main body; a three-way connector communicated with the interior of the main body is further arranged on the side wall of the main body, a second clamping groove and a second clamping spring are clamped to the radial side wall of the three-way connector, a temperature sensing head made of metal is axially inserted into the three-way connector, and a limiting outer protruding ring is arranged on the radial outer ring of the temperature sensing head; and the inner side of the three-way joint is also provided with an O-shaped ring II sleeved on the radial outer side of the temperature sensing head. According to the utility model, the temperature sensing head made of a metal material is adopted, so that the response time is shorter, and long service life can be ensured by soaking cooling liquid for a long time; the split type temperature sensing head and the quick connector are integrated together, disassembly and replacement are simple, and cost can be effectively reduced when the temperature sensing head is applied to an automobile cooling system.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and particularly relates to a quick-connect joint for an automotive cooling system integrated with a water temperature sensor. Background Art

[0002] During the operation of an automobile, a large amount of heat is generated due to the continuous combustion in the engine combustion chamber and the high-speed friction between various parts, which causes the temperature of each part to rise rapidly. If the heat is not removed in time, the machine will be damaged due to excessive temperature. Therefore, a cooling system must be connected to the automobile to remove the heat by using flowing circulating coolant. Quick-connect joints are usually provided on the pipeline of the cooling system to achieve quick on-off of the pipeline for easy discharge and replacement of the coolant, etc.

[0003] For prior arts such as the quick-install joint for an automotive cooling waterway disclosed in the patent with the application number 202121460406.X, its temperature sensing unit is usually integrally injection-molded with the main body part using plastic, and has the following disadvantages:

[0004] 1. The plastic integrated temperature sensor is prone to failure and has a short lifespan when soaked in coolant for a long time;

[0005] 2. The plastic integrated temperature sensor is not detachable and cannot be replaced;

[0006] 3. The plastic integrated temperature sensor has a slow response time, resulting in poor measurement accuracy. Content of the Utility Model

[0007] To solve the above technical problems, the utility model provides a quick-connect joint for an automotive cooling system integrated with a water temperature sensor, which includes a main body with a male end and a female end. An O-ring I is axially arranged inside the female end of the main body, and a safety ring is arranged axially outside the O-ring I. A clamping groove I is radially arranged on the female end of the main body corresponding to the axially outer side of the safety ring, and a snap ring I is clamped in the clamping groove I;

[0008] A three-way joint communicating with the inside of the main body is further arranged on the side wall of the main body. A clamping groove II is clamped on the radial side wall of the three-way joint. A temperature sensing head made of metal is axially inserted into the inside of the three-way joint, and a limiting outer convex ring is arranged on the radially outer circle of the temperature sensing head. A snap ring II corresponding to the axially outer side of the limiting outer convex ring is clamped in the clamping groove II;

[0009] An O-ring II sleeved on the radially outer side of the temperature sensing head is further arranged inside the three-way joint.

[0010] Wherein, a limiting inner convex ring I corresponding to the axially inner side of the O-ring I is arranged radially inside the female end of the main body for axially limiting the O-ring I.

[0011] Wherein, a second limiting inner convex ring corresponding to the inner side in the axial direction of the safety ring is arranged on the inner side in the radial direction of the female end of the main body for axially limiting the safety ring.

[0012] Wherein, both the first snap ring and the second snap ring are made of U-shaped metal material and have a square cross-section.

[0013] Wherein, wedge-shaped convex blocks are symmetrically arranged on the outer ring of the safety ring in the axial direction, and wedge-shaped grooves corresponding to the convex blocks are arranged on the inner wall of the female end of the main body. After the safety ring is inserted into the main body, the wedge-shaped convex blocks are clamped into the wedge-shaped grooves.

[0014] Through the above technical solutions, the present utility model has the following beneficial effects:

[0015] 1. The temperature-sensitive head made of metal material has a faster response time and can be immersed in the coolant for a long time to ensure a longer service life;

[0016] 2. The split temperature-sensitive head and the quick connector are integrated together, and the disassembly and replacement are simple, which can effectively reduce the cost when applied to the automobile cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below.

[0018] Figure 1 Schematic diagram of the exploded structure of the quick connector disclosed in the embodiment of the present utility model;

[0019] Figure 2 Schematic diagram of the combined structure of the quick connector disclosed in the embodiment of the present utility model;

[0020] Figure 3 For Figure 2 Cross-sectional structure schematic diagram taken along the A-A direction in

[0021] The numbers in the figure represent: 10. safety ring; 11. wedge-shaped convex block; 20. first O-ring; 30. main body; 31. first clamping groove; 32. three-way joint; 321. second clamping groove; 33. first limiting inner convex ring; 34. second limiting inner convex ring; 40. first snap ring; 50. temperature-sensitive head; 51. limiting outer convex ring; 60. second O-ring; 70. second snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

[0023] Embodiment 1:

[0024] Refer to Figures 1-3, a quick-connect fitting for an automotive cooling system integrated with a water temperature sensor provided in Embodiment 1, includes a main body 30 having a male end and a female end. An O-ring 20 is axially disposed inside the female end of the main body 30, and a safety ring 10 is disposed axially outside the O-ring 20. A first groove 31 is radially disposed in the female end of the main body 30 corresponding to the axially outer side of the safety ring 10, and a first snap ring 40 is clamped in the first groove 31;

[0025] A three-way joint 32 communicating with the inside of the main body 30 is further disposed on the side wall of the main body 30. A second groove 321 is clamped on the radial side wall of the three-way joint 32. A temperature sensor head 50 made of metal is axially inserted into the inside of the three-way joint 32, and a limiting outer convex ring 51 is disposed on the radially outer circle of the temperature sensor head 50. A second snap ring 70 corresponding to the axially outer side of the limiting outer convex ring 51 is clamped in the second groove 321. An O-ring 60 sleeved on the radially outer side of the temperature sensor head 50 is further disposed inside the three-way joint 32.

[0026] Among them, a first limiting inner convex ring 33 corresponding to the axially inner side of the O-ring 20 is radially disposed on the inner side of the female end of the main body 30 for axially limiting the O-ring 33; a second limiting inner convex ring 34 corresponding to the axially inner side of the safety ring 10 is radially disposed on the inner side of the female end of the main body 30 for axially limiting the safety ring 10.

[0027] Embodiment 2:

[0028] Based on Embodiment 1, in this Embodiment 2, both the first snap ring 40 and the second snap ring 70 are made of U-shaped metal and have a square cross-section. By designing a U-shaped snap ring made of metal and having a square cross-section, it has excellent flexibility, can maintain good elastic deformation within the allowable range, and has much better strength than plastic. When in use, it can not only ensure the product strength but also be quickly installed, reduce installation actions, facilitate assembly and later maintenance and replacement, and the pulling force reaches more than 2000N, which is more than 4 times that of traditional plastic snap rings, and can effectively avoid problems such as joint disengagement caused by vehicle vibrations.

[0029] Embodiment 3:

[0030] Based on Embodiment 1, in this Embodiment 3, wedge-shaped protrusions 11 are axially symmetrically disposed on the outer circle of the safety ring 10, and wedge-shaped grooves corresponding to the protrusions are disposed on the inner wall of the female end of the main body 30. After the safety ring 10 is inserted into the main body 30, the wedge-shaped protrusions 11 are snapped into the wedge-shaped grooves; through the structural design of the safety ring 10 with wedge-shaped protrusions 11, the quick assembly of the safety ring 10 can be realized by the cooperation of the wedge-shaped protrusions 11 and the wedge-shaped grooves on the inner wall of the main body 30, with high assembly efficiency, and the adoption of high-cost laser welding methods can be effectively avoided, as well as the pollution problems brought by laser welding.

[0031] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-connect connector for a cooling system of an automobile with an integrated water temperature sensor, comprising a main body (30) having a male end and a female end, an O-ring (20) located inside the female end of the main body (30) and a safety ring (10) located axially outside the O-ring (20), a groove (31) corresponding to the axial outside of the safety ring (10) is radially arranged at the female end of the main body (30), and a retaining spring (40) is disposed in the groove (31); Features: The side wall of the main body (30) is also provided with a three-way joint (32) connected to the inside of the main body (30), and the radial side wall of the three-way joint (32) is provided with a second clamping groove (321), and a temperature sensing head (50) made of metal is axially inserted into the interior of the three-way joint (32), and a limiting outer convex ring (51) is provided on the radial outer ring of the temperature sensing head (50), and a second clamping spring (70) corresponding to the axial outer side of the limiting outer convex ring (51) is clamped in the second clamping groove (321); The inner side of the three-way joint (32) is also provided with an O-ring 2 (60) sleeved on the radial outer side of the temperature sensing head (50).

2. The automobile cooling system quick-connect connector with integrated water temperature sensor according to claim 1, characterized in that: A limiting inner convex ring (33) corresponding to the axial inner side of the O-ring (20) is arranged on the radial inner side of the female end of the main body (30) to limit the axial position of the O-ring (33).

3. The automobile cooling system quick-connect connector with integrated water temperature sensor according to claim 1, characterized in that: A second limiting inner convex ring (34) corresponding to the axial inner side of the safety ring (10) is arranged on the radial inner side of the female end of the main body (30) to limit the axial position of the safety ring (10).

4. The automobile cooling system quick-connect connector with integrated water temperature sensor according to claim 1, characterized in that: The first clamping spring (40) and the second clamping spring (70) are both made of U-shaped metal and have a square cross-section.

5. The automobile cooling system quick-connect connector with integrated water temperature sensor according to claim 1, characterized in that: The outer ring of the safety ring (10) is axially symmetrically provided with a wedge-shaped protrusion (11), and the inner wall of the female end of the main body (30) is provided with a wedge-shaped groove corresponding to the protrusion. After the safety ring (10) is installed in the main body (30), the wedge-shaped protrusion (11) is inserted into the wedge-shaped groove.

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