CN215953415U - Pressure normal position XRD testing arrangement of pressure adjustable - Google Patents
Pressure normal position XRD testing arrangement of pressure adjustable Download PDFInfo
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- CN215953415U CN215953415U CN202122103015.9U CN202122103015U CN215953415U CN 215953415 U CN215953415 U CN 215953415U CN 202122103015 U CN202122103015 U CN 202122103015U CN 215953415 U CN215953415 U CN 215953415U
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Abstract
The utility model discloses a pressure-adjustable in-situ XRD (X-ray diffraction) testing device, which comprises an upper flange assembly and a lower flange assembly, wherein the upper flange assembly comprises a pressing sheet and an upper flange, the pressing sheet is arranged on the upper flange, and the pressing sheet realizes the conductive connection between an electrode sheet and the lower flange assembly and the pressure conduction of the lower flange assembly to the electrode sheet; the lower flange assembly comprises a lower flange, a pressure regulating screw, a pressure regulating spring and a spring pressure table, the pressure regulating screw is movably connected with the spring pressure table, the pressure regulating spring is arranged between the pressure regulating screw and the spring pressure table to provide elastic repulsion force, the spring pressure table is in contact with the pressing sheet, the lower flange is connected with the pressure regulating screw, and the lower flange is connected with the upper flange; according to the utility model, the compression state of the pressure regulating spring can be regulated by regulating the relative position between the pressure regulating screw and the spring pressing platform, so that the pressure state of the electrode plate to be tested can be regulated, and therefore, the mechanical pressure can be acted on the electrode plate of the battery through simple operation, and the in-situ XRD test of the electrochemical process under different pressures can be realized.
Description
Technical Field
The utility model relates to the technical field of pressure in-situ XRD detection, in particular to a pressure adjustable pressure in-situ XRD testing device.
Background
With the development of flexible electronic devices, it is inevitable to develop corresponding flexible battery and flexible supercapacitor technologies, so that the evaluation of the influence of external pressure on the flexible battery or supercapacitor during use and the research of pressure influence mechanisms become an indispensable key for the development of flexible energy storage technologies.
The X-ray diffraction (XRD) technique is a characterization means for qualitatively analyzing the crystal type, crystal parameters and crystal defects of materials and quantitatively analyzing the relative content of different structural phases through the diffraction phenomenon of X-rays in a sample. In order to improve the performance and the service life of the battery, researchers need to perform detailed analysis and research on the change of the electrode material in the charging and discharging processes, and through X-ray diffraction analysis, the information of crystal form change, new substance generation, material crystal grain size change, stress change and the like of the electrode material in the electrochemical reaction can be obtained, so that the method is an effective and practical research means. Because the electrode material and the electrolyte are sensitive to oxygen and water vapor in the air, a common ex-situ test method is adopted, namely the electrode material is firstly removed from the battery and then is tested, the electrode material reacts when contacting the air, and then a plurality of uncertain factors and even error information are brought to the test result; in addition, the ex-situ test method can only obtain the change information of the electrode material crystal structure corresponding to a certain single charging (discharging) state through single operation, and cannot obtain the evolution information of the electrode material structure along with the voltage change in the whole charging and discharging process. Therefore, an in-situ XRD testing technology is developed, charging and discharging are not required to be suspended, a battery is not required to be disassembled, and the evolution process of the electrode material crystal structures at different potentials in the charging and discharging processes can be accurately and continuously measured.
The electrochemical reaction process is sensitive to the change of external conditions. A large amount of experimental data show that the pressure has great influence on the electrochemical performance of batteries and super capacitors, and the application development of flexible devices puts higher requirements on the electrochemical performance of material devices under the pressure and the cognitive understanding of the evolution mechanism of the electrochemical process of the material devices under the pressure. At present, the existing in-situ cell patent technology related to pressure only relates to providing high-pressure atmosphere conditions required by reaction, and mechanical pressure cannot be applied to the electrode plate. The high-pressure device of the national synchrotron radiation center applies pressure to a sample placed in the middle by an upper diamond and a lower diamond which are symmetrical, the equipment is extremely complex and expensive, the force application window is small, the applied pressure is extremely high and is in the level of hundreds of MPa to GPa, the test in the conventional pressure range cannot be carried out, the electrochemical charging and discharging cannot be carried out simultaneously, and the high-pressure device is not suitable for the operation of a common laboratory. In summary, the existing in-situ XRD testing technology can perform XRD in-situ testing of electrochemical processes, but cannot apply mechanical pressure to electrodes during the process to observe in-situ XRD of electrochemical processes under different pressures.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical defects, the utility model adopts the technical scheme that the pressure-adjustable pressure in-situ XRD testing device comprises an upper flange assembly and a lower flange assembly, wherein the upper flange assembly comprises an upper flange and a pressing sheet, and an electrode sheet, a diaphragm and a counter electrode sheet are arranged on the upper flange through the pressing sheet;
the lower flange component comprises a lower flange, a pressure regulating screw, a pressure regulating spring and a spring pressing platform, the pressure regulating screw is movably connected with the spring pressing platform, the pressure regulating spring is arranged between the pressure regulating screw and the spring pressing platform to provide elastic repulsion force, the spring pressing platform is arranged with the pressing sheet or with the electrode sheet in direct contact, the lower flange is connected with the pressure regulating screw, and the lower flange is connected with the upper flange.
Preferably, the inside cavity that is provided with of lower flange, place the insulating ring along the inner wall in the cavity, the flange center is provided with the regulation hole down, the regulation hole sets up to the screw hole, the pressure regulating screw with regulation hole threaded connection.
Preferably, the cavity depth of the lower flange is larger than the length of the pressure regulating spring.
Preferably, a telescopic hole is axially formed in the pressure regulating screw, one end of the spring pressing platform is arranged in the telescopic hole, and the spring pressing platform and the pressure regulating screw can axially move relatively.
Preferably, the end part, far away from the pressure regulating screw, of the spring pressing table is provided with an abutting circular table, the diameter of the abutting circular table is larger than that of the metal wafer of the pressing sheet, the pressure regulating spring is sleeved on the spring pressing table, and the diameter of the telescopic hole is larger than that of the spring pressing table and is smaller than the outer diameter of the pressure regulating spring.
Preferably, the pressure regulating screw is a constant pitch screw.
Preferably, the cylindrical side surface of the pressure regulating screw is provided with scales.
Preferably, a beryllium sheet is arranged on the upper flange, one end face of the beryllium sheet is in contact with the upper flange to form a beryllium window, the electrode sheet, the diaphragm and the counter electrode sheet are sequentially arranged at the other end of the beryllium sheet, the electrode sheet, the diaphragm and the counter electrode sheet are fixedly clamped between the beryllium sheet and the pressing sheet, the electrode sheet is in contact with the beryllium sheet, the upper flange, the beryllium sheet and the electrode sheet are in conductive connection, the spring pressing table is in contact with the pressing sheet, and the counter electrode sheet, the pressing sheet, the spring pressing table, the pressure regulating spring, the pressure regulating screw and the lower flange are in conductive connection.
Preferably, a rubber sealing ring is arranged between the lower flange and the upper flange.
Preferably, the upper flange is fixedly provided with an upper electrode plate through an upper electrode plate fixing bolt, and the lower flange is fixedly provided with a lower electrode plate through a lower electrode plate fixing bolt.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the compression state of the pressure regulating spring can be regulated by regulating the relative position between the pressure regulating screw and the spring pressing platform, so that the pressure state of the electrode plate to be tested can be regulated, and therefore, mechanical pressure can be applied to the electrode plate of the battery through simple operation, and the in-situ XRD test of the electrochemical process under different pressures can be realized.
Drawings
FIG. 1 is a perspective view of a bottom view structure of the pressure-adjustable pressure in-situ XRD testing device;
FIG. 2 is a perspective view of a depression angle structure of the pressure adjustable pressure in-situ XRD testing device;
FIG. 3 is a sectional view of an explosive structure of the pressure adjustable pressure in-situ XRD testing device;
FIG. 4 is a structural sectional view of the pressure adjustable pressure in-situ XRD testing device;
FIG. 5 is a structural view of the leveling flange base;
FIG. 6 is a structural view of the leveling flange ring;
FIG. 7 is a structural view of the T-shaped insulating fixing ring;
figure 8 is a structural view of the preform.
The figures in the drawings represent:
1-leveling a flange base; 2-tabletting; 3-T type insulation fixing ring; 4-leveling the flange ring; 5-a rubber sealing ring; 6-upper electrode plate; 7-fixing bolt of upper electrode plate; 8-an insulating ring; 9-lower flange; 10-pressure regulating screw; 11-a pressure regulating spring; 12-a spring pressing table; 13-lower electrode sheet; 14-lower electrode plate fixing bolt; 101-a first connection; 102-a backplane; 201-metal wafer; 202-resin outer ring; 203-flow-through holes; 301-a second connection; 302-an annular stop; 303-an overflow trough; 304-pressure relief holes; 401-fixing the threaded hole.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and fig. 2, fig. 1 is a perspective view of a bottom view structure of the pressure-adjustable pressure in-situ XRD testing device; FIG. 2 is a perspective view of a depression angle structure of the pressure adjustable pressure in-situ XRD testing device; the pressure-adjustable pressure in-situ XRD testing device comprises an upper flange component and a lower flange component, wherein the upper flange component comprises a leveling flange base 1, a pressing sheet 2, a T-shaped insulating fixing ring 3 and a leveling flange ring 4, the T-shaped insulating fixing ring 3 is connected with the leveling flange base 1, the pressing sheet 2 is arranged in the leveling flange base 1, the position of the pressing sheet 2 in the leveling flange base 1 is limited through the T-shaped insulating fixing ring 3, and the leveling flange ring 4 is connected with the leveling flange base 1.
Lower flange subassembly includes lower flange 9, pressure regulating screw 10, pressure regulating spring 11, spring pressure platform 12, pressure regulating screw 10 with spring pressure platform 12 swing joint, pressure regulating spring 11 sets up pressure regulating screw 10 with provide elastic repulsion between the spring pressure platform 12, spring pressure platform 12 can with 2 contact settings of preforming, lower flange 9 with pressure regulating screw 10 connects, lower flange 9 with leveling flange ring 4 connects.
As shown in fig. 3 and 4, fig. 3 is a sectional view of an explosive structure of the pressure adjustable pressure in-situ XRD testing device;
FIG. 4 is a structural sectional view of the pressure adjustable pressure in-situ XRD testing device; the leveling flange base 1 is provided with a beryllium sheet, one end face of the beryllium sheet is in contact with the leveling flange base 1 to form a beryllium window, the other end of the beryllium sheet is sequentially provided with an electrode sheet, a diaphragm and a counter electrode sheet, the diaphragm and the counter electrode sheet are fixedly clamped between the beryllium sheet and the pressing sheet 2, the electrode sheet is in contact with the beryllium sheet, the leveling flange base 1, the beryllium sheet and the electrode sheet are in conductive connection, the spring pressing table 12 is in contact with the pressing sheet 2, and the counter electrode sheet, the pressing sheet 2, the spring pressing table 12, the pressure regulating spring 11, the pressure regulating screw 10 and the lower flange 9 are in conductive connection.
Preferably, a rubber sealing ring 5 is arranged between the lower flange 9 and the leveling flange ring 4, so as to ensure the sealing state and the insulating state between the lower flange 9 and the leveling flange ring 4.
Preferably, an insulating ring 8 is arranged in the lower flange 9 to ensure an insulating environment inside the lower flange 9.
Generally, the lower flange 9 with be provided with connect the via hole on the leveling flange ring 4, pass in proper order through connecting bolt the lower flange 9 with on the leveling flange ring 4 connect the via hole realizes the lower flange 9 with the connection dismantled of leveling flange ring 4, connecting bolt adopts insulating material preparation, or be provided with the insulating layer in the connect the via hole the connecting bolt with be provided with insulating gasket between the connect the via hole, in order to realize guaranteeing the lower flange 9 with insulating state between the leveling flange ring 4.
An upper electrode plate 6 is fixedly arranged on the leveling flange ring 4 through an upper electrode plate fixing bolt 7, and a lower electrode plate 13 is fixedly arranged on the lower flange 9 through a lower electrode plate fixing bolt 14.
When the leveling device works, the upper electrode plate 6 is connected with the electrode plate through the leveling flange base 1 and the beryllium sheet, and the lower electrode plate 13 is connected with the counter electrode plate through the lower flange 9, the pressure regulating screw 10, the pressure regulating spring 11, the spring pressing table 12 and the pressing sheet 2 to form a conductive channel.
At this time, the preparation work is completed by adjusting the contact between the spring pressing table 12 and the pressing sheet 2 until the resistance value between the upper electrode sheet 6 and the lower electrode sheet 13 is tested to be in a reasonable value range (usually, several to several hundred ohm range). And putting the electrode plate 6 and the lower electrode plate 13 into a corresponding XRD test instrument test bench, connecting the electrode plate with an external power supply, performing charge and discharge tests, and adjusting pressure according to requirements in the test process, namely performing XRD in-situ electrochemical test with adjustable pressure.
According to the utility model, the compression state of the pressure regulating spring 11 can be adjusted by adjusting the relative position between the pressure regulating screw 10 and the spring pressing platform 12, so that the pressure state of the electrode plate to be tested can be adjusted, and therefore, the mechanical pressure can be acted on the electrode plate of the battery through simple operation, and the electrochemical process in-situ XRD test under different pressures can be realized.
Example two
As shown in fig. 5, 6, 7 and 8, fig. 5 is a structural view of the leveling flange base; FIG. 6 is a structural view of the leveling flange ring; FIG. 7 is a structural view of the T-shaped insulating fixing ring; figure 8 is a structural view of the preform.
Leveling flange base 1 includes cylinder barrel type's first connecting portion 101 and bottom plate 102, bottom plate 102 is in the tip sealing connection of first connecting portion 101, T type insulating fixed ring 3 includes cylinder barrel type's second connecting portion 301 and the spacing portion 302 of annular, the spacing portion 302 of annular is in the tip sealing connection of second connecting portion 301, be provided with fixed screw hole 401 on the leveling flange ring 4.
Set up first connecting thread on the first connecting portion 101 inner wall, first connecting portion 101 passes through first connecting thread with second connecting portion 301 threaded connection, spacing portion 302 of annular corresponds spacing joint is realized to the tip of first connecting portion 101, set up second connecting thread on the first connecting portion 101 outer wall, first connecting portion 101 passes through second connecting thread with fixed screw hole 401 threaded connection. Through leveling flange base 1 with the relative rotation of the solid fixed ring 3 of T type insulation, leveling flange base 1 with the relative rotation of leveling flange ring 4, thereby realize leveling flange base 1T type solid fixed ring 3 of T type insulation the regulation of leveling flange ring 4 relative position.
The bottom plate 102 is provided with a square window, a circular arrangement groove is formed in the first connecting portion 101 corresponding to the square window, the beryllium sheet covers the square window to form a beryllium window for injecting and ejecting X-rays, the electrode sheet, the diaphragm, the counter electrode sheet and the pressing sheet 2 are all arranged in the circular arrangement groove, the electrode sheet, the diaphragm and the counter electrode sheet are arranged between the pressing sheet 2 and the beryllium sheet, and the electrode sheet, the diaphragm, the counter electrode sheet and the pressing sheet 2 are clamped and fixed by relatively rotating the leveling flange base 1 and the T-shaped insulating fixing ring 3.
The pressing sheet 2 comprises a metal disc 201 and a resin outer ring 202, the resin outer ring 202 is annularly arranged outside the metal disc 201, the resin outer ring 202 is arranged in contact with the T-shaped insulating fixing ring 3, and the metal disc 201 is arranged in contact with the spring pressing table 12.
Preferably, the resin outer ring 202 is provided with a plurality of circulation holes 203 in an annular shape, and when pressure is applied to the electrode plate, redundant electrolyte in the circular arrangement groove enters the cavity through the circulation holes 203, so that the influence of electrolyte retention on the pressure experiment effect is avoided.
Preferably, the pressing sheet 2 can be selected to have different thicknesses, and the relative position can be flexibly adjusted according to the thickness of the electrode plate diaphragm through the rotation adjustment of the leveling flange base 1 and the T-shaped insulating fixing ring 3, so that the purpose of fixing the pressing sheet 2 is achieved.
The second connecting part 301 is provided with an overflow groove 303 corresponding to the end of the pressing sheet 2, the overflow groove 303 is annularly arranged, the upper edge of the inner ring of the overflow groove 303 is higher than the upper edge of the outer ring of the overflow groove 303, so that even if the total thickness of the electrode sheet and the diaphragm part is relatively thin, the upper edge of the inner ring of the overflow groove 303 can be in light contact with the pressing sheet 2, and a fixing effect is achieved.
Preferably, the inner ring of the overflow chute 303 and the outer ring of the overflow chute 303 are both provided with curved surfaces, so as to play a role in guiding flow.
Preferably, the second connecting portion 301 is provided with a pressure relief hole 304, two ends of the pressure relief hole 304 are respectively communicated with the inside and the outside of the second connecting portion 301, and the pressure relief hole 304 is disposed between the overflow groove 303 and a connecting section in threaded connection with the leveling flange base 1, and is used for guiding out gas in the circular setting groove during a pressure applying process, so as to ensure that gas pressure in the circular setting groove is not changed.
Specifically, in the T-shaped insulating fixing ring 3, the upper edge of the inner ring of the overflow groove 303 is higher than the upper edge of the outer ring of the overflow groove 303, and the sum of the height difference between the upper edge of the inner ring of the overflow groove 303 and the upper edge of the outer ring of the overflow groove 303 and the thickness of the pressing sheet 2 is equal to the depth of the circular setting groove. Since the thicknesses of the electrode plate and the diaphragm part are not determined, the design ensures that the light contact between the insulating fixing ring 3 and the pressing sheet 2 can be realized during assembly to play a fixing role no matter the thickness of the electrode plate and the diaphragm part is thin or thick.
The overflow groove 303 prevents the electrolyte in the electrode plate diaphragm from directly flowing into the inner cavity of the lower flange 9 from the through hole of the pressing sheet 2 during the pressing process, and polluting the pressure regulating screw 10, the pressure regulating spring 11 and the spring pressing table 12. When the pressure is applied, the excessive electrolyte flows out from the through hole of the pressing sheet 2, and flows into and is stored in the overflow groove 303 of the T-shaped insulating fixing ring 3.
The internal thread of the leveling flange ring 4 is matched with the external thread of the leveling flange base 1, and the effects of assembling sealing and height adjustment are achieved through thread rotation matching, so that after the leveling flange ring 4 is assembled with the leveling flange base 1, the lower end face of the pressing sheet 2 is flush with or slightly lower than the lower end face of the leveling flange ring 4.
The thread of the fixing threaded hole 401 is full thread, and a circular annular groove is formed in the upper end face of the lower flange 9 and used for fixing the rubber sealing ring 5. The rubber sealing ring 5 plays a role in sealing and preventing short circuit when the leveling flange ring 4 and the lower flange 9 are assembled. And four threaded through holes are additionally arranged, an insulating sleeve is arranged in the threaded through holes, and the threaded through holes are screwed and fixed by screws to achieve the purpose of assembling and sealing the lower flange 9.
EXAMPLE III
The inside cavity that is provided with of lower flange 9, place along the inner wall in the cavity insulator ring 8, 9 centers of lower flange are provided with the regulation hole, the regulation hole sets up to the screw hole, pressure regulating screw 10 with regulation hole threaded connection, through pressure regulating screw 10 with the relative rotation of lower flange 9, thereby realize pressure regulating screw 10's axial is adjusted.
Preferably, the cavity depth of the lower flange 9 is greater than the length of the pressure regulating spring 11.
The axial is provided with the telescopic hole in the pressure regulating screw 10, spring pressure platform 12 one end sets up in the telescopic hole, spring pressure platform 12 with pressure regulating screw 10 relative axial displacement, the telescopic hole can prevent the compression in-process pressure regulating spring 11 takes place the displacement of non-vertical direction.
The end part, far away from the pressure regulating screw 10, of the spring pressing table 12 is provided with an abutting circular table, the diameter of the abutting circular table is slightly larger than that of the metal wafer 201 of the pressing sheet 2, the abutting circular table is used for applying pressure to the pressing sheet 2, the pressure regulating spring 11 is sleeved on the spring pressing table 12, and the diameter of the telescopic hole is larger than that of the spring pressing table 12 and smaller than the outer diameter of the pressure regulating spring 11.
When the pressure regulating device is used, the pressure regulating spring 11 is connected in series with the spring pressing table 12 and then matched with the pressure regulating screw 10, and the upper end face of the abutting circular truncated cone is flush with the upper end face of the lower flange 9 through rotation of the pressure regulating screw 10.
The lower flange assembly is arranged at the lower part, and the upper flange assembly is arranged at the upper part for sealing assembly. At this time, no pressure is applied to the electrode pads.
The pressure regulating screw 10 is a constant-pitch screw, and can directly calculate the vertical movement distance according to the number of turns of rotation, and the two modes of manual rotation and electric rotation can be adopted.
The cylindrical side surface of the pressure regulating screw 10 can be provided with scales, and the scales can be designed according to threads, so that the rotating and descending distance can be read through the scales.
Meanwhile, it should be noted that the pressure adjusting screw 10 may also be configured as an electric pressure adjusting rod structure, and the vertical movement distance is directly obtained by rotating the screw thread and applying pressure in an electric manner. The electric pressure regulating rod is mainly divided into an upper cylinder and a lower cylinder, and if the electric pressure regulating rod is adopted, a threaded port needs to be formed in the outer surface of the small circular table of the lower flange 9 for fixing the electric pressure regulating rod. The electric pressure regulating rod is leveled with the pressure regulating spring 11 and the spring pressure table 12 after being assembled, so that the upper end face of the abutting circular table is flush with the upper end face of the lower flange 9.
The pressure regulating spring 11 satisfies hooke's law within elastic limits. One end of the pressure regulating spring 11 is in contact connection with the abutting circular truncated cone, and the other end of the pressure regulating spring is in contact connection with the end of the pressure regulating screw 10. When rotatory pressure regulating screw 10, the compression when pressure regulating spring 11 applys pressure, the volume that pressure regulating spring 11 compressed with the volume that pressure regulating screw 10 descends or rises is unanimous, promptly through pressure regulating screw 10 descends or the vertical distance that rises obtains pressure regulating spring 11's compression variable, and then calculates through hooke's law and obtains the power of exerting. The adjustment of the applied pressure can be realized through different compression variables. In addition, the pressure-applying range and the pressure-applying precision of the device can be adjusted by changing relevant parameters (thread pitch, number of turns and the like) of the pressure-adjusting screw 10 and relevant parameters (material, wire diameter and the like) of the pressure-adjusting spring 11, so that the device can have a wide and adjustable pressure-applying range.
Principle of operation
The working principle of the pressure in-situ testing device is as follows: firstly, a beryllium piece is placed in the center of the round setting groove at the windowing position of the leveling flange base 1, the windowing opening is completely covered, then the electrode plate, the diaphragm and the counter electrode plate are sequentially placed on the beryllium piece and are positioned in the round setting groove, the windowing opening is completely covered, electrolyte is added, and then the pressing piece 2 is placed above the counter electrode plate and is positioned in the round setting groove.
And rotating the T-shaped insulating fixing ring 3 into an inner hole of the leveling flange base 1, and lightly touching the upper part of the pressing sheet 2 to achieve the purpose of fixing. If the electrolyte is not enough, a proper amount of electrolyte can be dripped through the small holes on the periphery of the tabletting 2. And screwing the leveling flange ring 4 into the leveling flange base 1 until the lower end face of the pressing sheet 2 is flush with or slightly lower than the lower end face of the leveling flange ring 4. The above is the upper half.
The lower half part is operated, the pressure regulating spring 11 is slightly screwed into the lower flange 9, the lower flange 9 is inverted, the hole is upwards opened, and the insulating ring 8 is placed into the inner hole of the lower flange 9. The pressure regulating spring 8 is sleeved on the spring pressure table 12, and the part of the spring pressure table 12 extending out of the pressure regulating spring 8 is placed in the opening of the pressure regulating screw 10 and is placed above the pressure regulating screw 10. The pressure regulating screw 10 is rotated to enable the upper end face of the spring pressing table 12 to be flush with the upper end face of the lower flange 9, and then the rubber sealing ring 5 is placed in a groove of the lower flange 9.
And finally, assembling, namely arranging the upper half part above the lower half part, aligning four holes at the edge of the lower flange 9 with four holes of the leveling flange ring 4, and screwing the upper part and the lower part for sealing through the connecting bolts. At this time, the spring pressing table 12 just loosely contacts the pressing sheet 2, and the assembly is completed.
The foregoing is merely a preferred embodiment of the utility model, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (12)
1. The pressure-adjustable pressure in-situ XRD testing device is characterized by comprising an upper flange assembly and a lower flange assembly, wherein the upper flange assembly comprises an upper flange and a pressing sheet, and an electrode sheet, a diaphragm and a counter electrode sheet are arranged on the upper flange through the pressing sheet;
the lower flange component comprises a lower flange, a pressure regulating screw, a pressure regulating spring and a spring pressing platform, the pressure regulating screw is movably connected with the spring pressing platform, the pressure regulating spring is arranged between the pressure regulating screw and the spring pressing platform to provide elastic repulsion force, the spring pressing platform is arranged with the pressing sheet or with the electrode sheet in direct contact, the lower flange is connected with the pressure regulating screw, and the lower flange is connected with the upper flange.
2. The pressure adjustable pressure in-situ XRD testing device as claimed in claim 1, wherein the upper flange assembly is further provided with a pressing sheet, the pressing sheet is arranged on the upper flange, and the pressing sheet is used for fixing an electrode sheet, a diaphragm and a counter electrode sheet, so that the counter electrode sheet is electrically connected with the lower flange assembly and the lower flange assembly is in pressure conduction with the counter electrode sheet.
3. The pressure adjustable pressure in-situ XRD testing device according to claim 2, characterized in that a cavity is arranged inside the lower flange, an adjusting hole is arranged in the center of the lower flange, the adjusting hole is a threaded hole, and the pressure adjusting screw is in threaded connection with the adjusting hole.
4. A pressure tunable pressure in situ XRD testing device according to claim 3, where an insulating ring is placed along the inner wall in the cavity.
5. A pressure tunable pressure in situ XRD testing device according to claim 3, where the cavity depth of the lower flange is greater than the length of the pressure tuning spring.
6. A pressure adjustable pressure in situ XRD testing device according to claim 3, wherein a telescopic hole is axially provided in the pressure adjusting screw, one end of the spring pressing platform is provided in the telescopic hole, and the spring pressing platform and the pressure adjusting screw are relatively axially movable.
7. A pressure adjustable pressure in-situ XRD test device as claimed in claim 6 wherein the end of the spring pressure platform far from the pressure adjusting screw is provided with an abutting circular platform, the diameter of the abutting circular platform is larger than that of the metal circular plate of the pressing plate, the pressure adjusting spring is sleeved on the spring pressure platform, and the diameter of the telescopic hole is larger than that of the spring pressure platform and smaller than the outer diameter of the pressure adjusting spring.
8. A pressure adjustable pressure in situ XRD testing device according to claim 3, where the pressure adjusting screw is a constant pitch screw.
9. A pressure adjustable pressure in situ XRD test device according to claim 3, where the cylindrical side of the pressure adjusting screw is provided with a scale.
10. A pressure adjustable pressure in-situ XRD testing device as claimed in claim 2, wherein a beryllium sheet is disposed on the upper flange, one end face of the beryllium sheet is in contact with the upper flange to form a beryllium window, the electrode sheet, the diaphragm and the counter electrode sheet are sequentially disposed at the other end, the electrode sheet, the diaphragm and the counter electrode sheet are fixedly clamped between the beryllium sheet and the pressing sheet, the electrode sheet is in contact with the beryllium sheet, the upper flange, the beryllium sheet and the electrode sheet are in conductive connection, the spring pressing table is in contact with the pressing sheet, and the counter electrode sheet, the pressing sheet, the spring pressing table, the pressure regulating spring, the pressure regulating screw and the lower flange are in conductive connection.
11. A pressure adjustable pressure in situ XRD testing device according to claim 10, where a rubber seal is provided between the lower flange and the upper flange.
12. A pressure adjustable pressure in situ XRD testing device according to claim 11, wherein the upper flange is fixedly provided with an upper electrode plate by upper electrode plate fixing bolts, and the lower flange is fixedly provided with a lower electrode plate by lower electrode plate fixing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103015.9U CN215953415U (en) | 2021-09-01 | 2021-09-01 | Pressure normal position XRD testing arrangement of pressure adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103015.9U CN215953415U (en) | 2021-09-01 | 2021-09-01 | Pressure normal position XRD testing arrangement of pressure adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215953415U true CN215953415U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122103015.9U Active CN215953415U (en) | 2021-09-01 | 2021-09-01 | Pressure normal position XRD testing arrangement of pressure adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215953415U (en) |
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2021
- 2021-09-01 CN CN202122103015.9U patent/CN215953415U/en active Active
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