CN218914032U

CN218914032U - Liquid cooling joint integrating temperature and pressure detection function

Info

Publication number: CN218914032U
Application number: CN202223254672.4U
Authority: CN
Inventors: 余昌军; 赖权; 陈安冲
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-04-25
Anticipated expiration: 2032-12-06

Abstract

A liquid cooled joint integrating temperature and pressure detection functions, comprising: the connector body 1, its front end is provided with outside liquid pipe 3, and its rear end is provided with inside liquid pipe 4, and pressure sensor 6 is screwed in screw hole I2, and temperature sensor 5 is screwed in screw hole II 8. Screw hole I and screw hole II all communicate each other with outside liquid pipe and inside liquid pipe, therefore temperature sensor 5 can real-time supervision coolant liquid temperature, and pressure sensor can real-time supervision coolant liquid's pressure. The liquid cooling connector integrates temperature and pressure detection functions, has universality, is convenient to install and detach, and cannot influence the internal structure of the battery box.

Description

Liquid cooling joint integrating temperature and pressure detection function

Technical Field

The utility model relates to the field of power battery boxes of new energy automobiles, in particular to a liquid cooling connector integrating a temperature and pressure detection function.

Background

The environment working condition that new energy automobile power battery used is complicated, and the lithium cell as power battery main energy is limited to the adaptability of environment, need be with battery temperature control in limiting range in full life cycle to guarantee power battery's life-span and performance, consequently all can cool down or heat power battery case inside through liquid circulation, liquid inflow and outflow battery case inside all need use the liquid cooling joint.

At present, the temperature of the cooling liquid of the power battery is detected and is located in an external pipeline, so that the power battery is difficult to fix, the distance is long, liquid leakage is easy to occur, and the detection error is large. Some are located inside the power battery box, so that the risk inside the power battery is increased, the detection signal is generally sent out after being processed by the battery management system, and the fault factor is improved. At present, the cooling liquid of the power battery is not subjected to pressure detection in and out, the pressure detection value in and out can be used for verifying the performance of the liquid cooling loop in the power battery during design and test, and the performance change of the liquid cooling loop can be monitored during use, so that the service life and the performance of the battery are prolonged.

Disclosure of Invention

In order to overcome the defects of the technology, the utility model provides the liquid cooling connector for detecting the temperature and the pressure of the cooling liquid of the power battery and improving the service life and the performance of the battery.

The technical scheme adopted for overcoming the technical problems is as follows:

a liquid cooled joint integrating temperature and pressure detection functions, comprising:

the connector comprises a connector body, wherein the front end of the connector body is provided with an external liquid pipe, the rear end of the connector body is provided with an internal liquid pipe, the external liquid pipe and the internal liquid pipe are arranged on the same shaft, and the external liquid pipe and the internal liquid pipe are mutually communicated;

the threaded hole I is formed in the right side end of the joint body, the inner side end of the threaded hole I is communicated with the external liquid pipe and the internal liquid pipe, and the pressure sensor is screwed in the threaded hole I;

the threaded hole II is formed in the left side end of the joint body, the inner side end of the threaded hole II is communicated with the external liquid pipe and the internal liquid pipe, and the temperature sensor is screwed in the threaded hole II;

after the internal liquid pipe is inserted into the liquid inlet or the liquid outlet of the battery box, the connector body is fixed on the outer wall of the battery box through the fixing device.

Further, the fixing device comprises N screw holes III formed in the rear side end of the connector body, the screw is screwed into the screw holes III after sensing the battery box, and the rear end face of the connector body is in surface contact with the outer wall of the battery box.

In order to improve the tightness, the sealing device also comprises an annular groove which is arranged at the rear end of the connector body in a surrounding manner, the front end of the sealing ring is embedded in the annular groove, and the rear end of the sealing ring is contacted with the outer wall of the battery box.

Preferably, N has a value of 2.

In order to prevent the coolant from leaking, the pressure sensor further comprises a plug, and when the pressure sensor is detached from the connector body, the plug is sealed and screwed into the threaded hole I.

The beneficial effects of the utility model are as follows: screw hole I and screw hole II all communicate each other with outside liquid pipe and inside liquid pipe, therefore temperature sensor can real-time supervision coolant liquid temperature, and pressure sensor can real-time supervision coolant liquid's pressure. The liquid cooling connector integrates temperature and pressure detection functions, has universality, is convenient to install and detach, and cannot influence the internal structure of the battery box.

Drawings

FIG. 1 is an exploded view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic rear view of the present utility model;

FIG. 4 is a schematic view of the use state of the present utility model;

FIG. 5 is a schematic view of a plug part of the present utility model;

in the figure, 1, a joint body 2, a threaded hole I3, an outer liquid pipe 4, an inner liquid pipe 5, a temperature sensor 6, a pressure sensor 7, a sealing ring 8, a threaded hole II 9, a threaded hole III 10, an annular groove 11, a battery box 12, a liquid inlet 13, a liquid outlet 14 and a plug.

Detailed Description

The utility model is further described with reference to fig. 1 to 5.

As shown in fig. 1 and 2, a liquid cooling joint integrating a temperature and pressure detection function includes: the connector comprises a connector body 1, wherein the front end of the connector body is provided with an outer liquid pipe 3, the rear end of the connector body is provided with an inner liquid pipe 4, the outer liquid pipe 3 and the inner liquid pipe 4 are arranged on the same shaft, and the outer liquid pipe 3 and the inner liquid pipe 4 are communicated with each other; the threaded hole I2 is formed in the right side end of the joint body 1, the inner side end of the threaded hole I2 is communicated with the outer liquid pipe 3 and the inner liquid pipe 4, and the pressure sensor 6 is screwed in the threaded hole I2; the threaded hole II 8 is formed in the left side end of the joint body 1, the inner side end of the threaded hole II 8 is communicated with the outer liquid pipe 3 and the inner liquid pipe 4, and the temperature sensor 5 is screwed in the threaded hole II 8; as shown in fig. 4, after the internal liquid pipe 4 is inserted into the liquid inlet 12 or the liquid outlet 13 of the battery box 11, the joint body 1 is fixed to the outer wall of the battery box 11 by a fixing device. If the joint body 1 is installed at the liquid inlet 12 of the battery box 11, cooling liquid flows into the battery box 1 through the outer liquid pipe 3 and the inner liquid pipe 4, if the joint body 1 is installed at the liquid outlet 13 of the battery box 11, cooling liquid flows out of the battery box 1 through the inner liquid pipe 4 and the outer liquid pipe 3, and the threaded holes I2 and II 8 are communicated with the outer liquid pipe 3 and the inner liquid pipe 4, so that the temperature sensor 5 can monitor the temperature of the cooling liquid in real time, and the pressure sensor 6 can monitor the pressure of the cooling liquid in real time. This liquid cooling connects integrated temperature and pressure detection function, the commonality has, be convenient for install and dismantle, can not influence battery box 11 inner structure, temperature sensor 5 and pressure sensor 6 on the liquid cooling connects can be connected with the controller electricity, with signal feedback to the controller, the controller is through temperature value and the pressure value that detects, adjust coolant liquid velocity of flow and feed liquor temperature, thereby guarantee that battery box 1 inside temperature is working in the limit range, improve battery life and performance, the controller passes through

inlet

12 and 13 temperature fields of liquid outlet and pressure differential, the inside pipeline state of battery box 11 is judged in the control, improve the battery security.

As shown in fig. 3, the fixing device comprises N screw holes iii 9 arranged at the rear end of the connector body 1, and the screw sensing battery box 11 is screwed into the screw holes iii 9, and the rear end surface of the connector body 1 contacts with the outer wall of the battery box 11. The joint body 1 is installed through the screw, so that the joint is simple, convenient and easy to detach. In an embodiment of this patent, N takes the value to be 2, is provided with two screw III 9 promptly, and two screw III 9 one controls mirror image setting, makes joint body 1 fixed firm, can also prevent to lead to joint body 1 pivoted problem by a screw fixed joint body 1, has improved the reliability.

The sealing ring also comprises an annular groove 10 which is arranged around the rear end of the connector body, the front end of the sealing ring 7 is embedded in the annular groove 10, and the rear end of the sealing ring is contacted with the outer wall of the battery box 11. The sealing ring 7 is arranged between the connector body 1 and the battery box 11, the sealing performance between the connector body 1 and the battery box 11 can be improved through the sealing ring 7, and water vapor or dust is prevented from entering the inside of the battery box 11.

As shown in fig. 5, the plug 14 is further included, and when the pressure sensor 6 is removed from the connector body 1, the plug 14 is sealingly screwed into the threaded hole i 2. After the pressure sensor 5 is removed, the plug 14 can be screwed into the threaded hole I2 to play a role in sealing, so that the cooling liquid is prevented from leaking outwards.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a liquid cooling connects of integrated temperature pressure detects function which characterized in that includes:

the connector comprises a connector body (1), wherein an outer liquid pipe (3) is arranged at the front end of the connector body, an inner liquid pipe (4) is arranged at the rear end of the connector body, the outer liquid pipe (3) and the inner liquid pipe (4) are arranged on the same shaft, and the outer liquid pipe (3) and the inner liquid pipe (4) are communicated with each other;

the threaded hole I (2) is formed in the right side end of the joint body (1), the inner side end of the threaded hole I (2) is communicated with the external liquid pipe (3) and the internal liquid pipe (4), and the pressure sensor (6) is screwed in the threaded hole I (2);

the threaded hole II (8) is formed in the left side end of the joint body (1), the inner side end of the threaded hole II (8) is communicated with the external liquid pipe (3) and the internal liquid pipe (4), and the temperature sensor (5) is screwed in the threaded hole II (8);

after the internal liquid pipe (4) is inserted into the liquid inlet (12) or the liquid outlet (13) of the battery box (11), the connector body (1) is fixed on the outer wall of the battery box (11) through a fixing device.

2. The liquid-cooled joint integrating temperature and pressure detection as set forth in claim 1, wherein: the fixing device comprises N screw holes III (9) arranged at the rear side end of the connector body (1), the screw sensing battery box (11) is screwed in the screw holes III (9), and the rear end face of the connector body (1) is in surface contact with the outer wall of the battery box (11).

3. The liquid-cooled joint integrating temperature and pressure detection as set forth in claim 1, wherein: the sealing ring also comprises an annular groove (10) which is arranged at the rear end of the connector body in a surrounding way, the front end of the sealing ring (7) is embedded in the annular groove (10), and the rear end of the sealing ring is contacted with the outer wall of the battery box (11).

4. The liquid-cooled joint integrating temperature and pressure detection as set forth in claim 1, wherein: n takes on a value of 2.

5. The liquid-cooled joint integrating temperature and pressure detection as set forth in claim 1, wherein: the pressure sensor comprises a connector body (1) and is characterized by further comprising a plug (14), wherein the plug (14) is screwed into the threaded hole I (2) in a sealing mode after the pressure sensor (6) is detached from the connector body (1).