CN219084310U - Pressing device for air tightness detection and air tightness detection equipment - Google Patents

Abstract

The embodiment of the application provides a pressing device for air tightness detection and air tightness detection equipment. The air tightness detection device comprises a bearing mechanism and a pressure simulation mechanism. The bearing mechanism is provided with a bearing surface, and the bearing surface is provided with a test area for placing a workpiece to be tested; the pressure simulation mechanism is arranged on the bearing mechanism, corresponds to the test area and is used for applying pressure to the workpiece to be tested. The air tightness detection equipment can improve the comprehensiveness of air tightness detection of the workpiece to be detected.

Description

Pressing device for air tightness detection and air tightness detection equipment

Technical Field

The application relates to the technical field of batteries, in particular to a pressing device for air tightness detection and air tightness detection equipment.

Background

The air tightness of part of parts of the battery is required, and the air tightness is an important characteristic, so that the safety performance and the working efficiency of the battery can be directly influenced. Therefore, it is necessary to perform air tightness detection on such parts to eliminate products which do not meet the air tightness requirements.

Currently, the accuracy of the air tightness detection result of the air tightness detection device is poor.

Disclosure of Invention

An object of the embodiments of the present application is to provide a pressing device and an air tightness detection apparatus for air tightness detection, which can improve accuracy and comprehensiveness of air tightness detection in the process of detecting air tightness of a product.

In a first aspect, an embodiment of the present application provides a pressing device for detecting air tightness, where the pressing device includes a bearing mechanism, a pressure simulation mechanism, and a positioning member. The bearing mechanism is provided with a bearing surface, and the bearing surface is provided with a test area for placing a workpiece to be tested; the pressure simulation mechanism is arranged on the bearing mechanism and corresponds to the test area, and is used for applying pressure to the workpiece to be tested; the positioning piece is used for limiting the workpiece to be tested in the test area.

According to the technical scheme, the pressing device can simulate the pressure of the workpiece to be detected in various use scenes when the air tightness of the workpiece to be detected is detected, and the pressure is applied to the workpiece to be detected, so that the air tightness of the workpiece to be detected can be detected in the state of being subjected to the pressure, the air tightness of the workpiece to be detected is detected to be closer to the actual condition, and the comprehensiveness of the air tightness detection of the workpiece to be detected and the accuracy of the air tightness detection result can be improved.

In addition, because the movement of the workpiece to be tested can influence the accuracy of the air tightness detection, the workpiece to be tested is fixed in the test area through the positioning piece, and the possibility of the movement of the workpiece to be tested in the test process can be reduced.

In some embodiments, the pressure simulation mechanism includes a platen and a first driver for driving the platen to act on the workpiece to be measured to apply pressure to the workpiece to be measured.

Among the above-mentioned technical scheme, through setting up the clamp plate in order to act on the work piece that awaits measuring, can make pressure simulation mechanism great to the area of the working face of work piece that awaits measuring, the pressure distribution who acts on the work piece that awaits measuring is even, is difficult for causing the damage to the work piece that awaits measuring. Through setting up first driver, can realize the automatic drive to the clamp plate, and then can improve the automation and the intellectuality of pressure applying device.

In some embodiments, the pressure simulation mechanism further comprises an adjustor arranged on the bearing mechanism and used for adjusting the pressure applied by the pressing plate to the workpiece to be tested.

According to the technical scheme, the pressure applied to the workpiece to be tested by the pressure regulating plate is regulated by the regulator, so that the pressing device can simulate different types of workpieces to be tested to be subjected to different pressures, and the compatibility of the pressing device can be improved. On the other hand, the pressure applying device is convenient to simulate that the same workpiece to be tested receives different pressures under different working conditions, so that the air tightness of the same workpiece to be tested under different pressures can be detected, and the comprehensiveness of air tightness detection can be improved.

In some embodiments, the pressure simulation mechanism further includes a pressure display for displaying a pressure value of the pressure applied by the pressure plate to the workpiece to be measured.

According to the technical scheme, the pressure display enables an operator to intuitively observe the pressure value applied to the workpiece to be measured, and the pressure applied by the pressure applying device can be conveniently adjusted according to the pressure value.

In some embodiments, the pressing plate is a shaping plate or the pressure simulation mechanism further comprises a shaping plate arranged on one side of the pressing plate facing the bearing mechanism, the shaping plate is provided with a pressing part and an avoiding part, the pressing part is used for being attached to the workpiece to be tested, and the avoiding part is used for avoiding a partial area of the workpiece to be tested.

According to the technical scheme, the shape of the profiling plate is adapted to the shape of the workpiece to be tested, the avoidance part can avoid the part of the workpiece to be tested, which is easy to damage or protrude due to compression, so that the pressing part is stably attached to the workpiece to be tested, the pressure applied to the workpiece to be tested is uniformly distributed, and the possibility of damage of the workpiece to be tested after the workpiece to be tested is subjected to pressure is reduced.

In some embodiments, the number of the first drivers is a plurality, the first drivers are arranged at intervals along a first direction, the first drivers are respectively connected to the pressing plate, and the first direction is parallel to the bearing surface.

According to the technical scheme, the plurality of first drivers are arranged at intervals along the first direction, so that the pressing plate can stably approach to the workpiece to be tested, and then the workpiece to be tested is stably and uniformly pressed, and the possibility of damage of the workpiece to be tested under the condition of uneven pressure is further reduced.

In some embodiments, the bearing mechanism includes a first layer frame, a second layer frame and a bearing plate, the first layer frame and the second layer frame are arranged at intervals along a second direction, the first driver is installed on one side of the first layer frame facing the second layer frame, the bearing plate is arranged on the second layer frame, the bearing surface is a surface of the bearing plate facing the first layer frame, and the second direction is perpendicular to the bearing surface.

In the above technical scheme, the first driver and the bearing surface are both located between the first layer frame and the second layer frame, and the first driver and the bearing surface can be integrated in the same equipment through such arrangement.

In some embodiments, the pressing device further comprises a conveying roller and a second driver, the bearing plate is provided with a containing groove, the containing groove is used for containing the conveying roller, the second driver is used for driving the conveying roller to extend out of or retract into the containing groove, and the axial direction of the conveying roller is parallel to the bearing surface.

According to the technical scheme, the conveying roller stretches out of the accommodating groove to convey the workpiece to be tested borne on the conveying roller, the workpiece to be tested can be conveyed to the testing area along the conveying direction conveniently, the placing difficulty of the workpiece to be tested is reduced, meanwhile, the adjustment of the relative positions of the workpiece to be tested and the testing area is facilitated, and the conveying roller withdraws from the accommodating groove to reduce the influence of the conveying roller on the air tightness testing process.

In some embodiments, the bearing mechanism further includes a third layer frame, the third layer frame and the second layer frame are disposed at intervals along the second direction, and are located at a side of the second layer frame away from the first layer frame, and the second driver is disposed on the third layer frame.

In the above technical scheme, for the second driver is arranged in other directions, the second driver is arranged on the third layer frame, so that the first driver and the second driver are positioned on two sides of the second layer frame along the second direction, the size of the whole pressing device in other directions can be reduced, and the space occupation of the pressing device in other directions is reduced. In addition, since the third layer frame is far away from the first layer frame, the second driver is arranged on the third layer frame, so that the influence on the layout of the pressure simulation mechanism can be reduced, and the possibility that the second driver interferes with the first driver in the driving process is reduced.

In some embodiments, a first support is disposed between the side of the first shelf and the side of the second shelf, a second support is disposed between the side of the second shelf and the side of the third shelf, and a third support is disposed between the middle of the second shelf and the middle of the third shelf.

According to the technical scheme, the first supporting piece is arranged, so that the first layer frame and the second layer frame are spaced, and the space for accommodating the bearing mechanism and the pressure simulation mechanism is formed conveniently. Through setting up second support piece, can make second layer frame and third layer frame interval, be convenient for form the space of holding second driver. Because the area of the workpiece to be tested is large, the pressure simulation mechanism applies pressure to the workpiece to be tested in the test area, the bearing surface has the possibility of deformation, the air tightness detection result is affected, and the third support piece is arranged in the middle of the second layer frame and the middle of the third layer frame, so that the support effect on the second layer frame can be further achieved, and the possibility of deformation of the support surface is reduced.

In some embodiments, the pressure simulation mechanism further comprises a guide rod, one end of the guide rod is connected to the pressing plate, the other end of the guide rod is connected to the first layer frame in a sliding manner, and the axial direction of the guide rod is perpendicular to the bearing surface.

According to the technical scheme, the guide rod can play a guiding role in moving the pressing plate along the first direction in the process of driving the pressing plate to move towards the workpiece to be tested and applying pressure by the first driver, so that the pressing plate is more stable in the moving process.

In some embodiments, the workpiece to be measured is a battery thermal management component.

In some embodiments, the thermal management component is a water cooled plate.

In a second aspect, an embodiment of the present application provides an air tightness detection apparatus, including the pressing device and the air tightness meter provided in the foregoing embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a pressing device according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of a front view of a pressing device according to some embodiments of the present disclosure;

FIG. 3 is a schematic perspective view of a pressing device and a workpiece to be tested according to some embodiments of the present application;

FIG. 4 is a schematic perspective view of a pressing device and an airtight apparatus according to other embodiments of the present application;

FIG. 5 is a schematic front view of a pressing device according to still other embodiments of the present application;

FIG. 6 is a schematic perspective view of a platen and a cam of a pressing device according to some embodiments of the present application;

FIG. 7 is an exploded schematic view of a drive roller, a mounting bracket, and a second drive of a pressure applicator provided in some embodiments of the present application.

Icon: 100-pressing device; 10-a carrying mechanism; 11-a first shelf; 12-a second layer frame; 13-third shelf; 14-a carrier plate; 141—a bearing surface; 142-a receiving groove; 143-positioning holes; 15-a first support; 16-a second support; 17-a third support; 20-a pressure simulation mechanism; 21-a pressing plate; 22-profiling plate; 2121-pressing part; 2122-avoiding portion; 23-a first driver; 24-pressure display; 25-a guide rod; 26-regulator; 2-an airtight instrument; 1-a workpiece to be measured; 3-positioning pieces; 4-a conveying roller; 5-a second driver; 6-mounting rack; 7-controlling a switch; z-a second direction; x-a first direction; y-transport direction.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and in the interest of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the present application, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are illustrative only and should not be construed as limiting the present application in any way.

The term "plurality" as used herein refers to more than two (including two).

In the related art, a workpiece to be detected is generally connected with an airtight instrument to detect the air tightness of the workpiece to be detected, and when the air tightness detector detects the air tightness of a product, the air tightness of the product is detected under the state that the product is not subjected to external force.

The air tightness detection range is limited, and only the air tightness of the product in a state of not being subjected to external force can be detected, but the product is generally affected by various external forces in actual use, so that the air tightness is qualified in detection, and the air tightness is possibly unqualified in use. Taking a water-cooling plate as an example, in the hoisting process of the water-cooling plate, gaps appear at the connecting positions of all parts due to the action of gravity, so that the air tightness of the water-cooling plate is unqualified. Or when the water cooling plate is arranged at the bottom of the battery cell, the gravity of the battery cell is applied to the water cooling plate, so that the air tightness of the water cooling plate is disqualified. Still alternatively, when the water cooling plate is disposed on the side or top of the battery cell, the expansion of the battery cell to squeeze the water cooling plate may also result in failure of the air tightness of the water cooling plate. In the above cases, failure could not be detected in the air tightness detection of the water-cooled panel without external force.

Therefore, the embodiment of the application provides the pressing device for the air tightness detection, the pressing device simulates the external force possibly applied to the workpiece to be detected in the air tightness detection process of the workpiece to be detected, the simulation pressure is applied to the workpiece to be detected, the air tightness of the workpiece to be detected under the condition of the external force can be detected, and the detection comprehensiveness of the air tightness is improved.

The simulated pressure includes, but is not limited to, external forces to which the workpiece to be measured may be subjected during lifting, transportation and use.

The technical scheme described in the embodiment of the application is applicable to but not limited to the air tightness detection process of the thermal management component.

The workpiece to be measured described in the embodiment of the application comprises, but is not limited to, a water cooling plate, a harmonica pipe, a box body and the like.

Referring to fig. 1, 2 and 3, fig. 1 is a schematic perspective view of a pressing device 100 according to some embodiments of the present application; fig. 2 is a schematic front view of a pressing device 100 according to some embodiments of the present disclosure; fig. 3 is a schematic perspective view of a pressing device 100 and a workpiece 1 to be measured according to some embodiments of the present application.

The embodiment of the application provides a pressing device 100, wherein the pressing device 100 comprises a bearing mechanism 10, a pressure simulation mechanism 20 and a positioning piece 3. The bearing mechanism 10 is provided with a bearing surface 141, and the bearing surface 141 is provided with a test area for placing the workpiece 1 to be tested; the pressure simulation mechanism 20 is arranged on the bearing mechanism 10, the pressure simulation mechanism 20 corresponds to the test area, and the pressure simulation mechanism 20 is used for applying pressure to the workpiece 1 to be tested; the positioning piece 3 is used for fixing the workpiece 1 to be tested in the test area.

The pressure simulation mechanism 20 is a structure that applies pressure to the workpiece 1 to be measured. The pressure simulation mechanism 20 may apply pressure to the workpiece 1 to be tested before the workpiece 1 to be tested is connected to the air-tight instrument 2, and the pressure simulation mechanism 20 may apply pressure to the workpiece 1 to be tested after the workpiece 1 to be tested is connected to the air-tight instrument 2.

Specifically, according to the magnitude of the pressure that the workpiece 1 to be measured may be subjected to, a preset value may be set first, and the pressure simulation mechanism 20 applies pressure to the workpiece 1 to be measured according to the preset value.

The preset value may be a point value so as to detect the air tightness of the workpiece 1 to be measured in the pressure state of the point value. The preset value may be a range within which the pressure applied to the workpiece 1 to be measured fluctuates at the time of the air tightness detection. The pressure change in this range may be a smooth increment or decrement, the pressure change may also be an acceleration, or the pressure may be irregularly fluctuating in this range.

The bearing surface 141 is a plane for bearing the workpiece 1 to be measured, and the shape of the bearing surface 141 may be rectangular, circular, polygonal, etc., which is not limited in this application. Illustratively, as shown in FIG. 1, the bearing surface 141 is rectangular.

The test area is an area on the carrying surface 141 for carrying the workpiece 1 to be tested. The test area may be coplanar with the bearing surface 141, or may be an area formed by partially recessing the bearing surface 141, or may be an area partially protruding from the bearing surface 141.

The bearing surface 141 may be provided with a positioning hole 143, and the positioning member 3 is inserted into the workpiece 1 to be measured and the positioning hole 143 to fix the workpiece and the positioning hole.

Alternatively, the positioning member 3 may be a positioning pin, a screw, or the like.

In this embodiment, the pressing device 100 can simulate the pressure applied to the workpiece 1 to be tested in various usage scenarios when the workpiece 1 to be tested is tested for air tightness, and apply the pressure to the workpiece 1 to be tested, so that the workpiece 1 to be tested can be tested for air tightness under the condition of being subjected to pressure, and further the air tightness test of the workpiece 1 to be tested is closer to the actual condition, and the comprehensiveness of the air tightness test of the workpiece 1 to be tested and the comprehensiveness of the air tightness test result can be improved.

In addition, since the movement of the workpiece 1 to be tested can affect the accuracy of the air tightness detection, the workpiece 1 to be tested is fixed in the test area through the positioning piece 3, so that the possibility of the movement of the workpiece 1 to be tested in the test process can be reduced, and the accuracy of the air tightness detection result is improved.

In some embodiments, referring to fig. 4, the pressure simulation mechanism 20 includes a platen 21 and a first driver 23, the first driver 23 for driving the platen 21 to act on the workpiece 1 to be measured to apply pressure to the workpiece 1 to be measured.

The first driver 23 may be a cylinder, a hydraulic cylinder, or the like.

The pressing plate 21 is connected to an output end of the first driver 23, and the first driver 23 applies pressure to the workpiece 1 to be measured through the pressing plate 21.

In this embodiment, by providing the pressing plate 21 to act on the workpiece 1 to be measured, the area of the acting surface of the pressure simulation mechanism 20 on the workpiece 1 to be measured can be larger, the pressure acting on the workpiece 1 to be measured is uniformly distributed, and damage to the workpiece 1 to be measured is not easy to cause. By providing the first driver 23, the platen 21 can be automatically driven, and automation and intellectualization of the pressing device 100 can be improved.

In some embodiments, referring to fig. 1, the pressure simulation mechanism 20 may further include an adjuster 26, where the adjuster 26 is mounted on the carrier mechanism 10, and is used to adjust the pressure applied by the platen 21 to the workpiece 1 to be measured.

The regulator 26 may be a knob, a button, a voice control, a motion control, or the like.

In this embodiment, the pressure applied to the workpiece 1 to be measured by the platen 21 is adjusted by the setting regulator 26, so that the pressing device 100 can simulate different types of the workpiece 1 to be measured to be subjected to different pressures, and the compatibility of the pressing device 100 can be improved. On the other hand, the pressing device 100 is also convenient to simulate that the same workpiece 1 to be tested receives different pressures under different working conditions, so that the air tightness of the same workpiece 1 to be tested under different pressures can be detected, and the comprehensiveness of air tightness detection can be improved.

In other embodiments, the first driver 23 may be an internal pressure-adjustable driver, for example, an internal pressure-adjustable cylinder, and in this case, the pressure output by the first driver 23 may be adjusted without providing the regulator 26.

In some embodiments, referring to fig. 4 and 5, fig. 5 is a schematic front view of a pressing device 100 according to still other embodiments of the present application. The pressure simulation mechanism 20 further includes a pressure display 24, where the pressure display 24 is used to display a pressure value of the pressure applied by the pressure plate 21 to the workpiece 1 to be measured.

The pressure display 24 may be disposed on the carrying mechanism 10.

The pressure display 24 allows the operator to intuitively observe the value of the pressure applied to the workpiece 1 to be measured, facilitating adjustment of the pressure applied by the pressing device 100 according to the value of the pressure.

In embodiments where the air-tightness gauge 2 is provided, the pressure display 24 may also be provided to the air-tightness gauge 2.

In some embodiments, optionally, platen 21 is a cam 22.

Alternatively, in some embodiments, referring to fig. 6, a schematic perspective view of the platen 21 and the cam 22 of the pressing device 100 according to some embodiments of the present application is provided. The pressure simulation mechanism 20 may include a platen 21 and a profile plate 22, the profile plate 22 being disposed on a side of the platen 21 facing the load bearing mechanism 10, the profile plate 22 being mounted on a side of the platen 21 facing the load bearing surface 141.

The profiling plate 22 is provided with a pressing portion 2121 and an avoiding portion 2122, the pressing portion 2121 is used for being attached to the workpiece 1 to be measured, and the avoiding portion 2122 is used for avoiding a partial area of the workpiece 1 to be measured.

The area where the dodging portion 2122 dodges is an area in the workpiece 1 to be measured where pressure is not easily applied or an area where pressure applied to the workpiece 1 by the platen 21 is affected.

The shape adaptation of former 22 and work piece 1 that awaits measuring, dodging portion 2122 can dodge the fragile or convex position of pressure in the work piece 1 that awaits measuring for the steady laminating of pressure portion 2121 and work piece 1 that awaits measuring, the pressure distribution that applies pressure to work piece 1 that awaits measuring is even, reduces the possibility of damage after the work piece 1 that awaits measuring receives the pressure.

The profiling plate 22 can be further provided with a flexible layer, so that a buffer effect is achieved, and the possibility of damage to the workpiece 1 to be measured is further reduced.

The former 22 is detachably connected with the pressing plate 21 or the pressing plate 21 is detachably connected with the first driver 23, so that the former 22 is convenient to disassemble and assemble, and the workpieces 1 to be measured of different types are adapted.

In some embodiments, referring to fig. 1, the number of the first drivers 23 is plural, the plurality of first drivers 23 are arranged at intervals along the first direction X, and the plurality of first drivers 23 are respectively connected to the platen 21, and the first direction X is parallel to the bearing surface 141.

In an embodiment in which the bearing surface 141 is rectangular, the first direction X may be a length direction of the rectangle.

In this embodiment, the plurality of first drivers 23 are arranged at intervals along the first direction X so that the pressing plate 21 can smoothly approach the workpiece 1 to be measured, and further stably and uniformly press the workpiece 1 to be measured, so as to further reduce the possibility of damage of the workpiece 1 to be measured under the condition of uneven pressure.

The number of the first drivers 23 in this embodiment is 3, and the number of the first drivers 23 in other embodiments may be 2 or more than 3.

In some embodiments, the carrying mechanism 10 includes a first layer frame 11, a second layer frame 12 and a carrying board 14, the first layer frame 11 and the second layer frame 12 are disposed at intervals along a second direction Z, the first driver 23 is installed on a side of the first layer frame 11 facing the second layer frame 12, the carrying board 14 is disposed on the second layer frame 12, the carrying surface 141 is a surface of the carrying board 14 facing the first layer frame 11, and the second direction Z is perpendicular to the carrying surface 141.

The first driver 23 and the first shelf 11 may be connected by bolting, bonding, riveting, or the like.

The connection manner of the bearing plate 14 and the second layer frame 12 can be bolt connection, bonding, riveting and the like.

The first driver 23 is mounted on the first layer frame 11, the bearing plate 14 is mounted on the second layer frame 12, and at this time, the first driver 23 and the bearing plate 14 are both located between the first layer frame 11 and the second layer frame 12, so that the first driver 23 and the bearing plate 14 can be integrated on the same device along the second direction Z, and the size of the device in other directions is reduced.

Referring to fig. 7, fig. 7 is an exploded schematic view of a driving roller, a mounting frame 6, and a second driver 5 of the pressing device 100 according to some embodiments of the present application. In some embodiments, the pressing device 100 further includes a transfer roller 4 and a second driver 5, the carrier plate 14 has a receiving groove 142, the receiving groove 142 is used for receiving the transfer roller 4, and the second driver 5 is used for driving the transfer roller 4 to extend or retract the receiving groove 142, and an axial direction of the transfer roller 4 is parallel to the carrying surface 141. Illustratively, in fig. 4 and 7, the bearing surface 141 is rectangular, and the width direction of the rectangle is defined as the conveyance direction Y.

Specifically, the accommodating groove 142 may be located in the test area, and the accommodating groove 142 may penetrate the carrier plate 14 along the second direction Z. The pressing device 100 may further include a mounting frame 6, where the mounting frame 6 is located on a side of the carrying floor 14 facing away from the carrying surface 141 and is mounted to the second layer frame 12. The output end of the second driver 5 is connected to the mounting frame 6, the output shaft of the second driver 5 extends along the second direction Z, the second driver 5 drives the mounting frame 6 to move along the second direction Z, and the mounting frame 6 drives the conveying roller 4 to extend or retract into the accommodating groove 142.

The conveying roller 4 may partially extend out of the accommodating groove 142, or may extend out of the accommodating groove 142 entirely. When the workpiece 1 to be measured is conveyed, the second driver 5 drives the mounting frame 6 to move in a direction approaching to the pressing plate 21, so that the conveying roller 4 extends out of the accommodating groove 142, at least part of the peripheral surface of the conveying roller 4 protrudes out of the bearing surface 141, and the workpiece 1 to be measured is pushed in from one side of the bearing surface 141 and moves to the other side of the bearing surface 141 through the conveying roller 4. After the workpiece 1 to be tested moves to the position corresponding to the test area, the conveying is completed, and the conveying rollers 4 fully retract the accommodating grooves 142, so that the workpiece 1 to be tested is stably carried in the test area.

The second driver 5 may be a cylinder, a hydraulic cylinder, etc.

In this embodiment, the conveying roller 4 extends out of the accommodating groove 142 to convey the workpiece 1 to be tested carried on the conveying roller 4, so that the workpiece 1 to be tested can be conveyed to the testing area along the conveying direction Y conveniently, the placement difficulty of the workpiece 1 to be tested is reduced, meanwhile, the adjustment of the relative positions of the workpiece 1 to be tested and the testing area is facilitated, and the conveying roller 4 retracts into the accommodating groove 142 so as to reduce the influence of the conveying roller 4 on the air tightness testing process.

In other embodiments, the transfer roller 4 may also be transferred in the first direction X, where the axial direction of the transfer roller 4 is perpendicular to the first direction X.

A third driver may also be provided, which drives the rotation of the conveying roller 4.

In some embodiments, the carrying mechanism 10 further includes a third layer 13, the third layer 13 and the second layer 12 are spaced apart along the second direction Z, and are located on a side of the second layer 12 away from the first layer 11, and the second driver 5 is disposed on the third layer 13.

Understandably, in the second direction Z, the second shelf 12 is located between the first shelf 11 and the second shelf 12, and the third shelf 13 is located on opposite sides of the second shelf 12 from the first shelf 11.

Compared to the second driver 5 being disposed in other directions, the second driver 5 is disposed on the third shelf 13, so that the first driver 23 and the second driver 5 are located on two sides of the second shelf 12 along the second direction Z, which can reduce the size of the whole pressing device 100 in other directions, thereby reducing the space occupation of the pressing device 100 in other directions.

In addition, since the third shelf 13 is away from the first shelf 11, the second driver 5 is provided at the third shelf 13 at a position away from the pressure simulation mechanism 20, it is possible to reduce the influence on the layout of the pressure simulation mechanism 20 while reducing the possibility of interference of the second driver 5 with the first driver 23 during driving.

In some embodiments, a first support 15 is provided between the side of the first shelf 11 and the side of the second shelf 12, a second support 16 is provided between the side of the second shelf 12 and the side of the third shelf 13, and a third support 17 is provided between the middle of the second shelf 12 and the middle of the third shelf 13.

The first support 15 is a member that serves as a support between the first shelf 11 and the second shelf 12. The number of the first supporting pieces 15 may be plural, and the plural first supporting pieces 15 are supported between the edge of the first shelf 11 and the edge of the second shelf 12 at intervals. The first support 15, the first shelf 11, and the third shelf 13 enclose a detection space. The pressure simulation mechanism 20 applies pressure to the workpiece 1 to be measured in the detection space.

The second support 16 is a member that serves as a support between the second shelf 12 and the third shelf 13. The number of the second supporting pieces 16 may be plural, and the plurality of second supporting pieces 16 are supported between the edge of the second shelf 12 and the edge of the third shelf 13 at intervals.

The third supporting member 17 plays a supporting role between the middle of the second shelf 12 and the middle of the third shelf 13.

In the present embodiment, by providing the first support 15, the first and second shelves 11 and 12 can be spaced apart, so that a space for accommodating the carrying mechanism 10 and the pressure simulating mechanism 20 can be formed. By providing the second support 16, the second tier frame 12 and the third tier frame 13 can be spaced apart, facilitating the formation of a space for accommodating the second driver 5. Because the area of the workpiece 1 to be tested is larger, the pressure simulation mechanism 20 applies pressure to the workpiece 1 to be tested in the test area, the bearing surface 141 has the possibility of deformation, the air tightness detection result is affected, and the third supporting piece 17 is arranged in the middle of the second layer frame 12 and the middle of the third layer frame 13, so that the supporting effect on the second layer frame 12 can be further played, and the possibility of deformation of the supporting surface can be reduced.

In some embodiments, the pressure simulation mechanism 20 further includes a guide rod 25, one end of the guide rod 25 is connected to the pressing plate 21, the other end is slidably connected to the first layer 11, and an axial direction of the guide rod 25 is perpendicular to the bearing surface 141.

The guide rod 25 can play a guiding role in moving the pressing plate 21 along the first direction X in the process of driving the pressing plate 21 to move towards the workpiece 1 to be measured and applying pressure by the first driver 23, so that the pressing plate 21 is more stable in the moving process.

In some embodiments, the workpiece 1 to be measured is a battery thermal management component.

The thermal management component is a component for containing a fluid to regulate the temperature of the plurality of battery cells. The fluid may be a liquid or a gas, and the temperature adjustment means heating or cooling the plurality of battery cells. In the case of cooling or cooling the battery cells, the thermal management component is used to contain a cooling fluid to lower the temperature of the plurality of battery cells, and at this time, the thermal management component may also be referred to as a cooling component, a cooling system, a cooling plate, or the like, which contains a fluid that may also be referred to as a cooling medium or cooling fluid, and more specifically, may be referred to as a cooling liquid or cooling gas. In addition, the thermal management component may also be used for heating to warm up the plurality of battery cells, as the embodiments of the present application are not limited in this regard. Alternatively, the fluid may be circulated to achieve better temperature regulation. Alternatively, the fluid may be water, a mixture of water and ethylene glycol, or air, etc.

In some embodiments, the thermal management component is a water cooled plate. Understandably, the fluid in the water cooled plate is water. The inside runner that holds fluid that is formed with of water-cooling board, the runner of water-cooling board is crushed easily, causes the water-cooling board to scrap.

The water cooling plate can be provided with a water outlet and a water supply port, the water outlet can be plugged by using an airtight plug, the water supply port is connected with the airtight instrument 2, and in the airtight detection process, the pressure simulation mechanism 20 applies pressure to the water cooling plate, so that the airtight performance of the water cooling plate under the stress state can be detected.

Referring to fig. 4, the embodiment of the present application further provides an air tightness detection apparatus, where the air tightness detection apparatus includes the pressing device 100 provided in the foregoing embodiment of the air tightness meter 2, and the air tightness meter 2 is used to communicate with the workpiece 1 to be detected and perform air tightness detection on the workpiece 1 to be detected.

The airtight instrument 2 may be mounted on the carrying mechanism 10, or the airtight instrument 2 may be not physically connected to the carrying mechanism 10. The embodiment of the application provides a pressing device 100 for air tightness detection, wherein the pressing device 100 comprises a bearing mechanism 10, a pressure simulation mechanism 20, a conveying roller 4, a second driver 5, a control switch 7, a regulator 26 and a positioning piece 3. The carrying mechanism 10 includes a carrying plate 14, and a first layer frame 11, a second layer frame 12 and a third layer frame 13 sequentially arranged at intervals along a second direction Z. The pressure simulation mechanism 20 includes a first driver 23, a platen 21, and a profile plate 22. The carrying plate 14 is mounted on the second layer frame 12, and a surface of the carrying plate 14 facing the first layer frame 11 is a carrying surface 141. The carrying surface 141 has a test area in which the workpiece 1 to be tested is placed. The carrier plate 14 is provided with a positioning hole 143, and the positioning member 3 is configured to be inserted into the carrier plate 14 and the workpiece 1 to be measured to fix the two. The first driver 23 is mounted on a side of the first layer 11 facing the second layer 12, and the first driver 23 is used for driving the pressing plate 21 to apply pressure to the workpiece 1 to be measured. The number of the first drivers 23 is plural, and the plural drivers are arranged at intervals in the first direction X. The bearing plate 14 is provided with a containing groove 142, and the containing groove 142 penetrates through the bearing plate 14 along the second direction Z. The second driver 5 is mounted on the third shelf 13, and the second driver 5 is used for driving the conveying roller 4 to extend or retract the accommodating groove 142, and the axial direction of the conveying roller 4 is parallel to the first direction X. The regulator 26 is used for regulating the pressure generated by the pressure simulation mechanism 20, and the control switch 7 may be a PLC control system (Programmable LogicController ) to implement intelligent control over the pressure simulation mechanism 20 and the regulator 26.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The above embodiments are only for illustrating the technical solution of the present application, and are not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (14)

1. A pressing device for air tightness detection, characterized by comprising:

the bearing mechanism is provided with a bearing surface, and the bearing surface is provided with a test area for placing a workpiece to be tested;

the pressure simulation mechanism is arranged on the bearing mechanism and corresponds to the test area, and the pressure simulation mechanism is used for applying pressure to the workpiece to be tested;

the positioning piece is used for limiting the workpiece to be tested in the test area.

2. The pressing device for airtightness detection according to claim 1, wherein the pressure simulation mechanism includes a pressing plate and a driver for driving the pressing plate to act on the workpiece to be detected to apply pressure to the workpiece to be detected.

3. The pressing device for air tightness detection according to claim 2, wherein the pressure simulation mechanism further comprises a regulator provided on the carrying mechanism for regulating the pressure applied by the pressing plate to the workpiece to be tested.

4. The pressing device for air tightness detection according to claim 2, wherein the pressure simulation mechanism further comprises a pressure display for displaying a pressure value of the pressing plate for applying pressure to the workpiece to be tested.

5. The pressing device for air tightness detection according to claim 2, wherein the pressing plate is a cam or the pressure simulation mechanism further comprises a cam arranged on one side of the pressing plate facing the bearing mechanism, the cam is provided with a pressing part and an avoiding part, the pressing part is used for being attached to the workpiece to be detected, and the avoiding part is used for avoiding a partial area of the workpiece to be detected.

6. The pressing device for airtightness detection according to claim 2, wherein the number of the drivers is plural, the plural drivers are arranged at intervals along a first direction, the plural drivers are connected to the pressing plate, respectively, and the first direction is parallel to the bearing surface.

7. The pressing device for air tightness detection according to claim 2, wherein the bearing mechanism comprises a first layer frame, a second layer frame and a bearing plate, the first layer frame and the second layer frame are arranged at intervals along a second direction, the driver is mounted on one side of the first layer frame facing the second layer frame, the bearing plate is arranged on the second layer frame, the bearing surface is a surface of the bearing plate facing the first layer frame, and the second direction is perpendicular to the bearing surface.

8. The pressing device for air tightness detection according to claim 7, further comprising a conveying roller and a second driver, wherein the carrier plate has a receiving groove for receiving the conveying roller, and the second driver is used for driving the conveying roller to extend or retract the receiving groove, and the axial direction of the conveying roller is parallel to the carrying surface.

9. The pressure applying device for air tightness detection according to claim 8, wherein the carrying mechanism further comprises a third layer frame, the third layer frame and the second layer frame are arranged at intervals along the second direction and are positioned at one side of the second layer frame away from the first layer frame, and the second driver is arranged on the third layer frame.

10. The pressure applicator for air tightness detection according to claim 9, wherein a first support is provided between the side edge of the first layer frame and the side edge of the second layer frame, a second support is provided between the side edge of the second layer frame and the side edge of the third layer frame, and a third support is provided between the middle part of the second layer frame and the middle part of the third layer frame.

11. The pressure applicator for air tightness detection according to claim 8, wherein the pressure simulation mechanism further comprises a guide rod, one end of the guide rod is connected to the pressing plate, the other end of the guide rod is slidably connected to the first layer frame, and an axial direction of the guide rod is perpendicular to the bearing surface.

12. The pressing device for airtightness detection according to any one of claims 1 to 11, wherein the workpiece to be detected is a battery thermal management part.

13. The pressure applicator for air tightness detection of claim 12 wherein the thermal management component is a water cooled plate.

14. An air tightness detection apparatus comprising the pressing device according to any of claims 1 to 13 and an air tightness meter.

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