CN217483753U

CN217483753U - Air tightness detection device for water cooling plate of battery module

Info

Publication number: CN217483753U
Application number: CN202221307875.2U
Authority: CN
Inventors: 李运
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-23
Anticipated expiration: 2032-05-26

Abstract

The utility model provides an air tightness detection device of a battery module water-cooling plate, which comprises a frame, a module tray and a shifting unit which are arranged on the frame, and a mounting base which can be driven by the shifting unit to shift, wherein the mounting base is provided with a detection device and a communication component; and the battery module to be detected is positioned on the module tray. The detection device can move above a water cooling plate of the battery module along with the mounting base so as to determine the position of a communication port on the water cooling plate; the displacement unit can drive the mounting base to move to a position where the communicating component is opposite to the communicating port; the communicating component is arranged on the mounting base through the butt joint driving mechanism and communicated with the air tightness tester. The utility model discloses an airtightness detection device, after detection device detected the intercommunication mouth position, the aversion unit drive intercommunication subassembly was just to the position of intercommunication mouth, and later butt joint actuating mechanism drive intercommunication subassembly butt joint intercommunication mouth to detect the gas tightness of water-cooling board, be favorable to promoting the detection efficiency of water-cooling board gas tightness.

Description

Air tightness detection device for water cooling plate of battery module

Technical Field

The utility model relates to a battery manufacturing technology field, in particular to gas tightness detection device of battery module water-cooling board.

Background

In recent years, with the rapid development of electric vehicles, more and more people use electric vehicles as a trip mode, so the safety of electric vehicles is more and more emphasized; the battery module of the electric vehicle is an important component of the electric vehicle, and the safety and reliability of the battery module are one of important guarantees of the electric vehicle.

The water-cooling plate is an essential part of the battery module as a component for cooling the equipment, and the air tightness of the water-cooling plate seriously affects the safety and reliability of the battery module, so that the detection of the air tightness is an important process in the production of the battery module.

Some of the existing detection modes are that the water-cooling plate is usually required to be put into water to judge the air tightness of the water-cooling plate when the water-cooling plate is detected, the air tightness of the water-cooling plate is required to be judged by manual observation, the detection mode is easily influenced by the environment and human eye observation errors, and the detection time is long, so that the detection efficiency is low due to the mode.

The existing detection mode also has the problem that the air tightness is detected by using compressed gas, and the butt joint of an air inlet and an air outlet of a detection air path and a water cooling plate is involved in the detection process. Need artifical manual butt joint during actual butt joint, need the shutoff to the business turn over gas port that does not need the intercommunication, whole process efficiency is lower, has seriously influenced the efficiency that detects.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a battery module water-cooling board's gas tightness detection device to do benefit to battery module water-cooling board gas tightness detection efficiency's promotion.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the air tightness detection device for the water cooling plate of the battery module comprises a rack, a module tray, a shifting unit and a mounting base, wherein the module tray and the shifting unit are arranged on the rack;

the detection device can move above a water cooling plate of the battery module along with the mounting base so as to determine the position of a communication port in the water cooling plate; the displacement unit can drive the mounting base to move to a position where the communication assembly is opposite to the communication port; the communication assembly is arranged on the mounting base through a butt joint driving mechanism and is communicated with an air tightness tester; the communication assembly can be driven by the docking driving mechanism to dock with the communication port which is opposite to the docking driving mechanism so as to communicate the internal cavity of the water cooling plate with the air tightness tester.

Further, the communication port comprises an air inlet and an air outlet, the communication assembly comprises an air tightness test head and an air tightness plug which respectively correspond to the air inlet and the air outlet, and the air tightness test head is communicated with the air tightness tester; the butt joint driving mechanism comprises a testing head cylinder and a plug cylinder which are used for respectively driving the airtight testing head and the airtight plug.

Furthermore, the airtight testing head and the airtight plug are arranged at intervals along the width direction of the rack, and the distance between the airtight testing head and the airtight plug is adjustable.

Furthermore, a distance scale used for reading the distance between the airtight testing head and the airtight plug is arranged on the mounting base.

Further, the detection device adopts a CCD camera.

Furthermore, a light source for supplementing light for the CCD camera is arranged on the mounting base.

Further, the shifting unit comprises a longitudinal translation mechanism arranged on the rack, a transverse translation mechanism driven by the longitudinal translation mechanism to move in the length direction of the rack, and a vertical shifting mechanism driven by the transverse translation mechanism to move in the width direction of the rack; the mounting base is arranged on the vertical displacement mechanism and can move up and down under the driving of the vertical displacement mechanism.

Furthermore, the longitudinal translation mechanism comprises a main slide rail and an auxiliary slide rail which are arranged at intervals in the width direction, and the transverse translation mechanism is arranged between the main slide rail and the auxiliary slide rail.

Further, at least one of the longitudinal translation mechanism, the transverse translation mechanism and the vertical displacement mechanism is driven by a linear motor.

Furthermore, the air tightness tester is arranged below the module tray, and a communication pipeline between the air tightness tester and the communication assembly is arranged by adopting a towline slot.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a gas tightness detection device of battery module water-cooling board, it can remove under the drive of shift unit with the intercommunication subassembly to establish detection device on the mounting base, after detection device detects the position of intercommunication mouth on the water-cooling board, make the intercommunication subassembly can remove to just aiming at the position of intercommunication mouth under the drive of shift unit, later butt joint actuating mechanism drive intercommunication subassembly butt joint intercommunication mouth, thereby make the gas tightness that the gas tightness tester can detect the water-cooling board, be favorable to promoting the detection efficiency of water-cooling board gas tightness.

In addition, the distance between the airtight testing head and the airtight plug is adjustable, and the airtight testing device can be suitable for the airtight testing of water-cooling plates with different sizes; set up the interval scale that can read interval between airtight test head and the airtight end cap through setting up on the mounting base, be convenient for measure airtight survey test head and airtight end cap between the interval to reduce the step of exclusive use scale measurement, made work more high-efficient.

Meanwhile, a light source for supplementing light to the CCD camera is arranged on the mounting base, so that the CCD camera can be clearly positioned at the position of the communicating opening.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to further understand the present disclosure, and the exemplary embodiments and descriptions thereof are used to explain the present disclosure, wherein the related front and back, upper and lower, and other words are only used to represent relative positional relationships, which do not constitute an improper limitation of the present disclosure. In the drawings:

fig. 1 is a perspective view of an air tightness detecting device for a water cooling plate of a battery module according to an embodiment of the present invention;

fig. 2 is a front view of an air-tightness detecting device according to an embodiment of the present invention;

fig. 3 is a perspective view of the transverse translation mechanism and the vertical shift mechanism of the air tightness detection device for a water-cooling plate of a battery module according to the embodiment of the present invention;

FIG. 4 is a front view of the components shown in FIG. 3;

fig. 5 is a top view of the air tightness detecting device and the battery module according to the embodiment of the present invention.

Description of the reference numerals:

1. a frame; 10. a module tray; 11. an air tightness tester; 111. an airtight test head; 112. an airtight plug; 12. mounting a base; 120. a pitch scale; 131. a test head cylinder; 132. a choke cylinder; 133. a first floating joint; 134. a second floating joint; 14. a work table; 15. a support;

2. a battery module; 20. a water-cooling plate; 201. an air inlet; 202. an air outlet;

3. a detection device; 30. a CCD camera; 31. a light source;

4. a shift unit; 41. a longitudinal translation mechanism; 42. a transverse translation mechanism; 43. a vertical displacement mechanism; 400. a main slide rail; 401. an auxiliary slide rail; 402. a towline slot.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that if terms indicating directions or positional relationships such as "up", "down", "inside", "back", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention; the appearances of the terms first, second, etc. in the figures are also for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model relates to an air tightness detection device 3 of a water-cooling plate 20 of a battery module 2, which is beneficial to improving the air tightness detection efficiency of the water-cooling plate 20 of the battery module 2; one exemplary structure of which is shown in fig. 1-3.

In general, the air tightness detecting device 3 of the water-cooled plate 20 of the battery module 2 comprises a frame 1, a module tray 10 and a shifting unit 4 which are arranged on the frame 1, and a mounting base 12 which can be shifted under the driving of the shifting unit 4; the detection device 3 and the communication unit are provided on the mounting base 12. The detection device 3 can move above a water cooling plate 20 of the battery module 2 along with the mounting base 12 so as to determine the position of a communication port on the water cooling plate 20; the displacement unit 4 can drive the mounting base 12 to move to a position where the communication component is opposite to the communication port; the communicating component is arranged on the mounting base 12 through the butt joint driving mechanism and communicated with the air tightness tester 11; the communication component can be driven by the docking driving mechanism to dock with the opposite communication port so as to communicate the internal cavity of the water-cooling plate 20 with the air tightness tester 11.

Based on the above design concept, the air tightness detection device 3 of the water-cooling plate 20 of the battery module 2 of the present embodiment mainly includes several parts, such as the rack 1, the module tray 10, the displacement unit 4, the mounting base 12, the detection device 3, and the communication components.

Specifically, the communication port includes an air inlet 201 and an air outlet 202, the communication assembly includes an air tightness testing head 111 and an air tightness plug 112 corresponding to the air inlet 201 and the air outlet 202, and the air tightness testing head 111 is communicated with the air tightness tester 11; the docking driving mechanism includes a test head cylinder 131 and a plug cylinder 132 for driving the airtight test head 111 and the airtight plug 112, respectively. The airtight test head 111 is connected to the test head cylinder 131 through a first floating joint 133, and the airtight plug 112 is connected to the plug cylinder 132 through a second floating joint 134. Wherein, the actual configuration of the water cooling plate 20 needs to be looked at for the specific situation of the communication port; the number and the positions of the air tightness testing head 111 and the air tightness plug 112 in the communication assembly can be configured correspondingly according to the difference of the number and the relative positions of the communication ports.

Generally, the inlet 201 and outlet 202 are spaced apart along the width of the water-cooled plate 20. Accordingly, the air-tightness testing head 111 and the air-tightness plug 112 may be disposed at intervals along the width direction of the rack 1. Preferably, the distance between the airtight testing head 111 and the airtight plug 112 is adjustable; the air tightness of the water cooling plates 20 with different sizes can be conveniently tested by adjusting the distance between the air tightness testing head 111 and the air tightness plug 112 so as to adapt to the condition that the distances between the air inlet 201 and the air outlet 202 on the water cooling plates 20 with different sizes are different.

Preferably, the mounting base 12 is provided with a distance scale 120 for reading the distance between the airtight testing head 111 and the airtight plug 112. The arrangement of the distance scale 120 can save the step of measuring by holding the scale, and is favorable for further improving the efficiency of the detection device 3.

In the present embodiment, the detection device 3 preferably employs a CCD camera 30. The CCD camera 30 is used for shooting and positioning the position of the communication port on the water cooling plate 20, so that the displacement unit 4 drives the airtight testing head 111 and the airtight plug 112 to face the air inlet 201 and the air outlet 202, and the butt joint driving mechanism drives the airtight testing head 111 and the airtight plug 112 to butt joint the air inlet 201 and the air outlet 202, so as to achieve the purpose of automatic butt joint of the communication port by the communication component.

The mounting base 12 is provided with a light source 31 for supplementing light to the CCD camera 30. A through hole is provided in the middle of the light source 31, which facilitates the CCD camera 30 to catch the communication opening. The light source 31 facilitates the CCD camera 30 to clearly locate the position of the communication port, and secondly, in case of insufficient light, the CCD camera 30 can be located to the position of the communication port due to the presence of the light source 31.

The specific form of the frame 1 can be designed flexibly, and in this embodiment, it includes a workbench 14 and a bracket 15 disposed on the workbench 14. The displacement unit 4 comprises a longitudinal translation mechanism 41 arranged on the support 15 of the frame 1, a transverse translation mechanism 42 driven by the longitudinal translation mechanism 41 to move in the length direction of the frame 1, and a vertical displacement mechanism 43 driven by the transverse translation mechanism 42 to move in the width direction of the frame 1. The mounting base 12 is disposed on the vertical displacement mechanism 43 and can move up and down by the vertical displacement mechanism 43. The longitudinal translation mechanism 41, the transverse translation mechanism 42 and the vertical displacement mechanism 43 are arranged to enable the mounting base 12 to move in the transverse, vertical and up-and-down directions of the rack 1, thereby facilitating the technical implementation.

Preferably, longitudinal translation mechanism 41 includes main slide rail 400 and the supplementary slide rail 401 that the interval set up in the width direction, and main slide rail 400 all locates on support 15 and main slide rail 400 and supplementary slide rail 401 parallel arrangement with supplementary slide rail 401, and transverse translation mechanism 42 locates between main slide rail 400 and the supplementary slide rail 401. The transverse translation mechanism 42 moves on the main slide rail 400 and the auxiliary slide rail 401 of the longitudinal translation mechanism 41, so as to facilitate the stable movement of the displacement unit 4.

In addition, the specific driving forms of the longitudinal translation mechanism 41, the transverse translation mechanism 42 and the vertical displacement mechanism 43 can be flexibly selected, for example, a driving form of an air cylinder, a linear motor and the like can be adopted, and specifically, the longitudinal translation mechanism 41, the transverse translation mechanism 42 and the vertical displacement mechanism 43 can be realized by adopting a linear motor driving mode, an air cylinder driving mode or a motor driving screw transmission mode.

The air-tightness tester 11 is preferably arranged below the module tray 10, and a communication pipeline between the air-tightness tester 11 and the communication component is arranged by using a towline slot 402. The arrangement of the towline slot 402 enables the communication assembly to move at high speed, and has low noise, good durability and convenient installation and maintenance.

It should be noted that the utility model discloses an airtightness detection device 3 provides good hardware basis for promoting water-cooling board 20 airtightness detection efficiency. In specific implementation, the position of the communication port on the water-cooling plate 20 can be determined quickly and accurately by using the existing image analysis technology and analyzing the image acquired by the CCD camera 30 by means of a computer. After the CCD camera 30 is positioned at the communication port position, a signal is transmitted to the control unit such as the PLC, and the control unit controls the displacement unit 4 to perform displacement driving of a specified stroke, that is, to displace the communication component to the corresponding position of the communication port, and then controls the docking driving mechanism to drive the communication component and the docking component to complete the docking. In accordance with the above requirements of the docking situation, those skilled in the art can achieve a good operation of the air-tightness detecting device 3 by configuring the necessary control unit.

To sum up, the gas tightness detection device 3 of the water-cooling plate 20 of the battery module 2 of this embodiment, the detection device 3 and the communication component that establish on the mounting base 12 can move under the drive of the displacement unit 4, after the detection device 3 detects the position of the communication port on the water-cooling plate 20, make the communication component can move to the position of just aiming at the communication port under the drive of the displacement unit 4, later butt joint actuating mechanism drive communication component butt joint communication port, thereby make the gas tightness tester 11 can detect the gas tightness of the water-cooling plate 20, be favorable to promoting the detection efficiency of the gas tightness of the water-cooling plate 20.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an air tightness detection device of battery module water-cooling board which characterized in that:

the device comprises a rack (1), a module tray (10) and a shifting unit (4) which are arranged on the rack (1), and a mounting base (12) which can shift under the driving of the shifting unit (4), wherein a detection device (3) and a communication component are arranged on the mounting base (12);

the battery module (2) to be detected is positioned on the module tray (10), and the detection device (3) can move above a water cooling plate (20) of the battery module (2) along with the mounting base (12) so as to determine the position of a communication port on the water cooling plate (20);

the displacement unit (4) can drive the mounting base (12) to move to a position where the communication component is opposite to the communication port; the communicating component is arranged on the mounting base (12) through a butt joint driving mechanism and communicated with an air tightness tester (11);

the communication assembly can be driven by the docking driving mechanism to dock with the opposite communication port so as to communicate the internal cavity of the water-cooling plate (20) with the air tightness tester (11).

2. The device for detecting the air tightness of the water cooling plate of the battery module according to claim 1, wherein:

the communication port comprises an air inlet (201) and an air outlet (202), the communication assembly comprises an air tightness testing head (111) and an air tightness plug (112) which respectively correspond to the air inlet (201) and the air outlet (202), and the air tightness testing head (111) is communicated with the air tightness tester (11);

the butt joint driving mechanism comprises a testing head air cylinder (131) and a plug air cylinder (132) which are used for respectively driving the airtight testing head (111) and the airtight plug (112).

3. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 2, wherein:

the airtight testing head (111) and the airtight plug (112) are arranged at intervals along the width direction of the rack (1), and the distance between the airtight testing head (111) and the airtight plug (112) is adjustable.

4. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 3, wherein:

and a distance scale (120) for reading the distance between the airtight testing head (111) and the airtight plug (112) is arranged on the mounting base (12).

5. The device for detecting the air tightness of the water cooling plate of the battery module according to claim 1, wherein:

the detection device (3) adopts a CCD camera (30).

6. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 5, wherein:

and a light source (31) for supplementing light for the CCD camera (30) is arranged on the mounting base (12).

7. The device for detecting the airtightness of the water cooling plate of the battery module according to any one of claims 1 to 6, wherein:

the shifting unit (4) comprises a longitudinal translation mechanism (41) arranged on the rack (1), a transverse translation mechanism (42) driven by the longitudinal translation mechanism (41) to move in the length direction of the rack (1), and a vertical shifting mechanism (43) driven by the transverse translation mechanism (42) to move in the width direction of the rack (1);

the mounting base (12) is arranged on the vertical displacement mechanism (43) and can move up and down under the driving of the vertical displacement mechanism (43).

8. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 7, wherein:

the longitudinal translation mechanism (41) comprises a main slide rail (400) and an auxiliary slide rail (401) which are arranged in the width direction at intervals, and the transverse translation mechanism (42) is arranged between the main slide rail (400) and the auxiliary slide rail (401).

9. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 7, wherein: at least one of the longitudinal translation mechanism (41), the transverse translation mechanism (42) and the vertical displacement mechanism (43) is in the form of a linear motor drive.

10. The device for detecting the airtightness of the water-cooling plate of the battery module according to claim 7, wherein:

the air tightness tester (11) is arranged below the module tray (10), and a communication pipeline between the air tightness tester (11) and the communication assembly is arranged by adopting a towline groove (402).