Aging detection equipment

Abstract

The utility model relates to aging detection equipment which comprises a mounting assembly, a detection assembly, a host, a temperature controller and a gas flow controller, the mounting assembly comprises a mounting cavity, a sample cell and a heating assembly, the mounting cavity forms an open mounting cavity, the sample cell and the heating assembly are both located in the mounting cavity, and the sample cell is arranged on the heating assembly; the detection assembly comprises a detection cavity, a photon detector and a cavity partition plate, a detection cavity with an opening opposite to the opening of the mounting cavity is formed in the detection cavity, the photon detector is arranged in the detection cavity, and the cavity partition plate is arranged at the opening of the detection cavity and detachably connected with the mounting cavity in a sealed mode; the cavity partition plate is provided with transparent detection windows opposite to the photon detector and the sample pool, the host is electrically connected with the photon detector, the temperature controller can control the temperature of the sample pool assembly to be a preset temperature through the heating assembly, and the gas flow controller is used for controlling the flow of gas flowing into the mounting cavity. The aging detection equipment can accurately detect the aging degree of the high polymer material.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of material reliability testing, in particular to an aging detection device. BACKGROUND

[0002] High polymer materials are a kind of materials composed of long-chain polymers. Due to the special structure and chemical properties, high polymer materials have many unique properties and wide applications, including common plastics, rubbers and fibers, adhesives, film materials and the like.

[0003] During the processing, storage and use of high polymer materials, physical and chemical properties will gradually change, physical and mechanical properties will deteriorate, and finally the use value will be lost. This process is called “aging”. The aging degree of high polymer materials will affect the reliability life of products. Therefore, how to accurately measure the aging degree of high polymer materials has become a focus in the production and application of high polymer materials. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide an aging detection device capable of accurately detecting the aging degree of high polymer materials in view of the above problems.

[0005] The technical scheme is as follows:

[0006] An aging detection device comprises:

[0007] An installation assembly comprises an installation cavity, a sample pool and a heating assembly. The installation cavity forms an open installation cavity which is light-tight. The sample pool and the heating assembly are located in the installation cavity, and the sample pool is arranged on the heating assembly. The sample pool is used for placing a sample to be detected. The installation cavity is provided with an air inlet and an air outlet. The air inlet and the air outlet are in communication with the installation cavity. The air outlet is used for flowing out the gas in the installation cavity.

[0008] A detection assembly comprises a detection cavity, a photon detector and a cavity partition plate. The detection cavity is arranged on the installation cavity. The detection cavity forms an open detection cavity which is light-tight. The opening of the detection cavity is arranged opposite to the opening of the installation cavity. The photon detector is arranged in the detection cavity. The cavity partition plate is arranged on the opening of the detection cavity and is detachably and sealingly connected with the edge of the opening of the installation cavity. The cavity partition plate is provided with a detection port opposite to the photon detector and the sample pool. The detection port is sealingly provided with a transparent detection window.

[0009] A host computer is electrically connected with the photon detector.

[0010] A temperature controller is electrically connected with the main machine and the heating assembly, and can control the temperature of the sample cell assembly to a preset temperature through the heating assembly.

[0011] A gas flow controller is used to connect the gas inlet interface with a gas source device, and control the flow of gas flowing into the mounting cavity.

[0012] In the above-mentioned aging detection device, the detection cavity is arranged on the mounting cavity, the opening of the detection cavity is arranged opposite to the opening of the mounting cavity, and the cavity partition cover is arranged on the opening of the detection cavity and detachably connected with the edge of the opening of the mounting cavity, so that the opening of the mounting cavity can be opened by disconnecting the mounting cavity and the cavity partition cover, to facilitate loading or replacing the sample to be detected on the sample cell assembly. After the sample loading is completed and the mounting cavity and the cavity partition cover are locked, the aging detection test can be performed. Since the sample cell is arranged on the heating assembly, the temperature controller is electrically connected with the main machine and the heating assembly, and the gas outlet interface allows the gas in the mounting cavity to flow out, and the gas inlet interface is connected with the gas flow controller, so that during the detection process, the gas flow controller is opened, so that the gas can flow in the mounting cavity at a specific flow rate, to ensure that the sample to be detected is in a specific gas environment during the detection process. The temperature controller and the main machine are opened, and the preset temperature of the sample cell during the detection process is set through the main machine, so that the temperature controller can control the temperature of the sample cell assembly to the preset temperature through the heating assembly, to ensure that the sample cell can stably heat the sample to be detected during the detection process, so that the sample to be detected can emit photons under heating. Since the mounting cavity and the detection cavity are both light-tight cavities, and the photon detector and the sample cell are arranged opposite to the transparent detection window, during the detection process, external light cannot enter the mounting cavity and the detection cavity, so that the photons detected and collected by the photon detector are all from the sample to be detected, so that when the photon detector feeds back the collected photon data to the main machine, the user can accurately obtain the aging degree of the polymer material according to the obtained photon data. Therefore, the aging detection device can conveniently and accurately detect the aging degree of the polymer material by using the principle of detecting the amount of photons in a closed space.

[0013] The technical solutions are further described below:

[0014] In one of the embodiments, the heating assembly comprises a heating platform, a heating pipe and a first temperature detector, the sample cell is arranged on the heating platform, the heating pipe and the first temperature detector are arranged on the heating platform and are electrically connected with the temperature controller, the first temperature detector is used to detect the temperature of the heating platform, and the temperature controller can adjust the current flowing into the heating pipe when the first temperature detector detects that the temperature is higher or lower than the preset temperature.

[0015] In one of the embodiments, the mounting assembly comprises a heat insulation frame and a support arranged in the mounting cavity, one end of the support is connected with the cavity wall of the mounting cavity, and the other end is connected with the side of the heating platform away from the sample cell, and the heat insulation frame is arranged between the heating platform and the support.

[0016] In one of the embodiments, the mounting cavity is further provided with a first vacuum joint, and the heating pipe and the first temperature detector are electrically connected with the temperature controller through the first vacuum joint.

[0017] In one of the embodiments, the detection assembly comprises a cold jacket, a cold lead platform and two cold lead pipes arranged in the detection cavity, the cold jacket is arranged on the outer periphery of the photon detector, the cold lead platform is arranged in close contact with the outer surface of the cold jacket, one end of one of the two cold lead pipes is in communication with the liquid inlet end of the cold lead platform, and the other end is used for being in communication with the liquid outlet end of the liquid cooling device; one end of the other of the two cold lead pipes is in communication with the liquid outlet end of the cold lead platform, and the other end is used for being in communication with the liquid return end of the liquid cooling device.

[0018] In one of the embodiments, the detection assembly comprises a second temperature detector arranged between the photon detector and the transparent detection window, the second temperature detector is electrically connected with the temperature controller, a liquid cooling pump is arranged between one of the two cold lead pipes and the liquid cooling device, the liquid cooling pump is connected with the temperature controller, and the temperature controller can control the liquid cooling pump to increase the rotating speed when the second temperature detector detects that the temperature exceeds the preset detection temperature.

[0019] In one of the embodiments, the detection cavity is provided with two liquid cooling interfaces, one of the two liquid cooling interfaces is used for being in communication with the liquid outlet end of the liquid cooling device and the corresponding cold lead pipe, and the other of the two liquid cooling interfaces is used for being in communication with the liquid return end of the liquid cooling device and the corresponding cold lead pipe.

[0020] In one of the embodiments, the detection assembly comprises a support frame arranged in the detection cavity, one end of the support frame is connected with the side wall of the detection cavity, and the other end is connected with the cold jacket.

[0021] In one of the embodiments, the detection assembly comprises a light shield, a transmission rod and a driving member, the light shield is movably arranged between the photon detector and the cavity partition plate, the driving member is arranged outside the detection cavity, one end of the transmission rod is drivingly connected with the driving member, and the other end of the transmission rod extends into the detection cavity and is connected with the light shield, the transmission rod is rotationally connected with the detection cavity, the light shield has a light shielding position and a light guiding position, at the light shielding position, the light shield is oppositely arranged with the transparent detection window and sealingly cooperates with the cold jacket to prevent light from entering the photon detector, at the light guiding position, the light shield is oppositely arranged with the transparent detection window in the opposite direction of the photon detector and the transparent detection window, and the light shield can move between the light shielding position and the light guiding position under the driving of the driving member.

[0022] In one of the embodiments, the relative direction of the photon detector and the transparent detection window is consistent with the extension direction of the transmission rod, the light shield is arranged in parallel with the transparent detection window, the detection assembly comprises a limiting plate, the limiting plate is arranged on the side of the light shield close to the transparent detection window and oppositely arranged with the transparent detection window, a detection opening opposite to the transparent detection window is formed in the limiting plate, first and second limiting protrusions are protrudingly arranged on the side of the limiting plate facing the cold jacket, the first and second limiting protrusions are respectively arranged on opposite sides of the limiting plate and are connected with the cold jacket, at the light shielding position, the light shield abuts against the first limiting protrusion, and at the light guiding position, the light shield abuts against the second limiting protrusion.

[0023] In one of the embodiments, the outer surface of the detection cavity is protrudingly arranged with a light shielding member, the light shielding member is formed with a transmission hole in communication with the detection cavity, one end of the transmission rod remote from the driving member penetrates through the transmission hole and is connected with the light shield, and the transmission rod and the hole wall of the transmission hole are rotationally and sealingly cooperated.

[0024] In one of the embodiments, the detection cavity is provided with a second vacuum joint, and the photon detector is electrically connected with the host computer through the second vacuum joint.

[0025] And / or, the detection cavity is provided with a vacuum interface, the vacuum interface is in communication with the detection cavity, and the vacuum interface is used to communicate with a vacuumizing device. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structural schematic view of the aging detection equipment in one of the embodiments.

[0027] Figure 2 It is a sectional structural schematic view of the mounting assembly and the detection assembly in one of the embodiments.

[0028] Figure 3 The opening of the mounting cavity in an embodiment is shown by a schematic diagram from closing to opening.

[0029] Figure 4 A partial perspective structural schematic diagram of the detection assembly in an embodiment.

[0030] Figure 5 A structural schematic diagram of the bracket, heat insulation frame and heating assembly in an embodiment.

[0031] Figure 6 A structural schematic diagram of the light shield and the cold sleeve and the limiting plate in cooperation in an embodiment.

[0032] Figure 7 A structural schematic diagram of the light shield in an embodiment from the light shielding position to the light guiding position.

[0033] Explanation of reference signs:

[0034] 100, aging detection equipment; 1, main machine; 2, temperature controller; 3, gas flow controller; 4, mounting assembly; 41, mounting cavity; 41a, mounting cavity; 411, gas inlet interface; 412, gas outlet interface; 413, first vacuum joint; 42, bracket; 43, heat insulation frame; 44, heating assembly; 441, heating table; 442, first temperature detector; 443, heating pipe; 45, sample cell; 5, detection assembly; 5a, second vacuum joint; 51, photon detector; 52, detection cavity; 521, side plate; 522, cover plate; 523, connecting piece; 52a, detection cavity; 531, cold guiding table; 532, cold guiding pipe; 533, cold guiding liquid interface; 54, vacuum interface; 551, driving piece; 552, light shielding piece; 553, transmission rod; 554, fixing piece; 555, light shielding plate; 556, limiting plate; 556a, first limiting protrusion; 556b, second limiting protrusion; 556c, detection port; 561, cold sleeve; 562, support frame; 57, cavity partition plate; 571, detection port; 572, transparent detection window; 58, second temperature detector. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0037] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it is to be understood that when a layer is referred to as being "connected", "coupled", or "supported" to another element, it can be directly connected, coupled, or supported to the other element or intervening elements can also be present. Other expressions used herein, such as "vertical", "horizontal", "up", "down", "left", "right", and the like, are used in relation to the exemplary embodiments illustrated in the drawings and are not intended to be limiting.

[0041] Referring to Figures 1 to 3 An aging detection device 100 is provided in an embodiment of the present application, which comprises a mounting assembly 4, a detection assembly 5, a host 1, a temperature controller 2, and a gas flow controller 3. Wherein:

[0042] The mounting assembly 4 comprises a mounting cavity 41, a sample cell 45, and a heating assembly 44. The mounting cavity 41 is formed with an open end and is light-tight. The sample cell 45 and the heating assembly 44 are both located in the mounting cavity 41a, and the sample cell 45 is arranged on the heating assembly 44. The sample cell 45 is used for placing a sample to be detected. The mounting cavity 41 is provided with an air inlet interface 411 and an air outlet interface 412, both of which are in communication with the mounting cavity 41a. The air outlet interface 412 is used for the gas in the mounting cavity 41a to flow out. The detection assembly 5 comprises a detection cavity 52, a photon detector 51, and a cavity partition plate 57. The detection cavity 52 is arranged on the mounting cavity 41. The detection cavity 52 is formed with an open end and is light-tight. The opening of the detection cavity 52a is arranged opposite to the opening of the mounting cavity 41a. The photon detector 51 is arranged in the detection cavity 52a. The cavity partition plate 57 is arranged on the opening of the detection cavity 52a and is detachably and sealingly connected with the edge of the opening of the mounting cavity 41a. The cavity partition plate 57 is provided with a detection port 571 opposite to both the photon detector 51 and the sample cell 45. The detection port 571 is sealingly provided with a transparent detection window 572. The host 1 is electrically connected with the photon detector 51. The temperature controller 2 is electrically connected with the host 1 and the heating assembly 44. The temperature controller 2 can control the temperature of the sample cell 45 assembly to a preset temperature through the heating assembly 44. The gas flow controller 3 is used for connecting the air inlet interface 411 and a gas source device. The gas flow controller 3 is used for controlling the flow of the gas flowing into the mounting cavity 41a.

[0043] In the above-mentioned aging detection device 100, the detection cavity 52 is arranged on the mounting cavity 41, the opening of the detection cavity 52a is arranged opposite to the opening of the mounting cavity 41a, and the cavity partition plate 57 is arranged on the opening of the detection cavity 52a and detachably connected with the edge of the opening of the mounting cavity 41a. This makes it possible to open the opening of the mounting cavity 41a by detaching the connection between the mounting cavity 41 and the cavity partition plate 57, so as to facilitate the loading or replacement of the sample to be detected on the sample pool 45 assembly. After the sample is loaded and the mounting cavity 41 and the cavity partition plate 57 are locked, the aging detection test can be performed. Since the sample pool 45 is arranged on the heating assembly, the temperature controller 2, the main machine 1 and the heating assembly 44 are electrically connected, the gas outlet interface 412 allows the gas in the mounting cavity 41a to flow out, and the gas inlet interface 411 is in communication with the gas flow controller 3, during the detection process, opening the gas flow controller 3 can make the gas flow in the mounting cavity 41a at a specific flow rate, so as to ensure that the sample to be detected is in a specific gas environment during the detection process; opening the temperature controller 2 and the main machine 1 can set the preset temperature of the sample pool 45 during the detection process through the main machine 1, so that the temperature controller 2 can control the temperature of the sample pool 45 assembly to the preset temperature through the heating assembly 44 under the control of the main machine 1, to ensure that the sample pool 45 can stably heat the sample to be detected during the detection process, so that the sample to be detected can emit photons under heating. Since the mounting cavity 41a and the detection cavity 52a are both light-tight cavities, and the photon detector 51 and the sample pool 45 are arranged opposite to the transparent detection window 572, during the detection process, external light cannot enter the mounting cavity 41a and the detection cavity 52a, so as to ensure that the photons detected and collected by the photon detector 51 all come from the sample to be detected, and thus when the photon detector 51 feeds back the collected photon data to the main machine 1, the user can accurately obtain the aging degree of the polymer material according to the obtained photon data. Therefore, the aging detection device 100 can conveniently and accurately detect the aging degree of the polymer material by using the principle of detecting the amount of photons in a closed space by the photon detector 51.

[0044] For example, in an embodiment, as Figure 1 、 Figure 2 and Figure 3As shown, the gas inlet interface 411 and the gas outlet interface 412 are respectively arranged at two sides of the installation cavity 41, so as to ensure that the newly-inflown gas in the installation cavity 41a can replace the original gas in the installation cavity 41a, so as to take away the gas generated by the material volatilization in the detection process and ensure the stability of the gas temperature of the sample pool 45. Further, the gas inlet interface 411 can be communicated with the gas flow controller 3 through a light-shielding gas pipe, so as to avoid heat absorption in the gas flow process. The gas outlet interface 412 can be directly communicated with the external environment, so as to discharge the gas from the installation cavity 41a and ensure the reliable performance of the test; or, the gas outlet interface 412 can also be communicated with the tail gas treatment device through a micro flow valve, so as to control the opening and closing of the gas outlet interface 412 and the tail gas treatment device by the micro flow valve, and purify the exhaust gas of the discharged gas by the tail gas treatment device, so as to avoid environmental pollution by the exhaust gas.

[0045] It should be noted that, since the aging effects of different gases and gas concentrations on the material are different, the type and flow rate of the gas introduced into the installation cavity 41a by the gas flow controller 3 can be designed according to the test requirements, for example, the type of the introduced gas includes but is not limited to nitrogen, oxygen, argon, etc.

[0046] Illustratively, the sample pool 45 is made of low-emission material, so as to avoid the emission of the sample pool 45 in the detection process and affect the reliability of the detection. Further, the sample pool 45 is concave to the side away from the detection cavity 52, so as to prevent the heated and molten sample to be detected from flowing away by the convex edge of the sample pool 45.

[0047] Illustratively, the transparent detection window 572 can be made of quartz glass, so as to ensure that the light can reliably pass through the transparent detection window 572. Further, the detection port 571 is arranged at the center of the cavity partition plate 57.

[0048] Optionally, in one embodiment, the gas flow controller 3 is electrically connected with the host computer 1, and the gas flow controller 3 can adjust the flow rate of the gas flowing into the installation cavity 41a under the control of the host computer 1. In this way, it is beneficial to realize automatic operation. In other embodiments, the gas flow controller 3 can also be controlled independently, so that the user can flexibly adjust the flow rate as needed.

[0049] Optionally, in one embodiment, as Figure 3 As shown, the detection cavity 52 includes a side plate 521, a cover plate 522 and a connecting piece 523, the side plate 521 is in a cylindrical structure, the cover plate 522 is connected to one end of the side plate 521 to jointly form a detection cavity 52a, and the connecting piece 523 is arranged at the outer periphery of the other end of the cover plate 522, and the connecting piece 523 is sealingly connected with the cavity cover plate 522.

[0050] Illustratively, the opening edge of the mounting cavity 41a is provided with a cavity sealing ring, and a plurality of screws are used to connect the cavity partition 57 to the opening edge of the mounting cavity 41a through the connecting member 523, so that the cavity partition 57 can be sealed to the opening edge of the mounting cavity 41a through the cavity sealing ring when covering the opening of the detection cavity 52a.

[0051] Optionally, in an embodiment, as shown in Figure 3 and Figure 4 , the detection cavity 52 is provided with a second vacuum joint 5a, and the photon detector 51 is electrically connected to the host 1 through the second vacuum joint 5a. In this way, it is convenient to connect the photon detector 51 to the host 1, and it is also beneficial to ensure the stability and reliability of the internal structure of the detection assembly 5. Illustratively, the second vacuum joint 5a is arranged on the cover plate 522 of the detection cavity 52, and the second vacuum joint 5a and the photon detector 51 are connected through a cable.

[0052] Optionally, in an embodiment, as shown in Figure 3 and Figure 4 , the detection cavity 52 is provided with a vacuum interface 54, the vacuum interface 54 is in communication with the detection cavity 52a, and the vacuum interface 54 is used to communicate with a vacuum device. In this way, the detection cavity 52a can be vacuumized through the vacuum interface 54, so as to better isolate the detection cavity 52a from the outside for heat exchange by using the vacuum characteristics, thereby helping to better control the temperature of the detection cavity 52a. Illustratively, the vacuum interface 54 is arranged on the cover plate 522 of the detection cavity 52.

[0053] In an embodiment, in combination with Figure 2 and Figure 5As shown, the heating assembly 44 comprises a heating platform 441, a heating pipe 443 and a first temperature detector 442, the sample pool 45 is arranged on the heating platform 441, the heating pipe 443 and the first temperature detector 442 are both arranged on the heating platform 441 and are both electrically connected with the temperature controller 2, the first temperature detector 442 is used for detecting the temperature of the heating platform 441, and the temperature controller 2 can adjust the current size input into the heating pipe 443 when the first temperature detector 442 detects that the temperature is higher or lower than the preset temperature. In this way, the heating pipe 443 can heat the heating platform 441 during the detection process, so that the heating platform 441 can transmit heat to the sample pool 45 to heat the sample to be detected arranged in the sample pool 45. Since the first temperature detector 442 can detect the temperature of the heating platform 441 in real time and feed back the detected temperature to the temperature controller 2, the temperature controller 2 can determine whether the current temperature of the heating platform 441 is higher or lower than the preset temperature required by the test, and then adjust the current size of the heating pipe 443 according to the determination result, such as reducing the current when the temperature is higher than the preset temperature, and increasing the current when the temperature is lower than the preset temperature, so as to adjust the temperature of the heating platform 441 by adjusting the heating size of the heating pipe 443, thereby ensuring that the sample pool 45 can stably heat the sample to be detected during the detection process, ensuring that the sample to be detected can stably emit photons, and further ensuring the reliability of the detection.

[0054] Illustratively, the heating platform 441 can be made of a high thermal conductivity material to enable the heating platform 441 to better transmit heat to the sample pool 45, thereby ensuring the detection temperature of the sample to be detected. Further, the bottom of the sample pool 45 is tightly attached to the heating platform 441 by screws, thereby ensuring that the sample pool 45 and the heating platform 441 can well transmit heat.

[0055] Optionally, in one embodiment, as shown in Figure 2 and Figure 3 , the mounting cavity 41 is also arranged on the first vacuum joint 413, and the heating pipe 443 and the first temperature detector 442 are both electrically connected with the temperature controller 2 through the first vacuum joint 413. In this way, the heating pipe 443 and the first temperature detector 442 can be conveniently connected with the temperature controller 2, and at the same time, it is also beneficial to ensure the stability and reliability of the internal structure of the mounting assembly 4. Illustratively, the first vacuum joint 413 is connected with the heating pipe 443 and the first temperature detector 442 through a cable, and the first vacuum joint 413 is connected with the temperature controller 2 through a cable.

[0056] Optionally, in one embodiment, in combination with Figure 2 and Figure 5As shown, the mounting assembly 4 comprises a heat insulation frame 43 and a support 42, both of which are arranged in the mounting cavity 41a, one end of the support 42 is connected with the cavity wall of the mounting cavity 41a, and the other end is connected with the side of the heating platform 441 away from the sample cell 45, and the heat insulation frame 43 is arranged between the heating platform 441 and the support 42. In this way, the sample cell 45 and the heating platform 441 can be suspended in the mounting cavity 41a by the support 42, so as to avoid the direct connection of the heating platform 441 and the sample cell 45 with the cavity wall of the mounting cavity 41a, thereby reducing the heat exchange between the heating platform 441 and the sample cell 45 and the outside, and improving the stability of temperature control. The arrangement of the heat insulation frame 43 is conducive to isolating the heat exchange between the heating platform 441 and the support 42, thereby further improving the stability of temperature control.

[0057] As shown in the figures, the heat insulation frame 43 is made of a material with high temperature resistance and low thermal conductivity, so as to ensure that the heat insulation frame 43 can effectively isolate heat exchange and prolong the service life of the heat insulation frame 43. Further, the heat insulation frame 43, the support 42 and the heating platform 441 are all fixed by screws.

[0058] As shown in the figures, Figure 2 and Figure 5 , the support 42 comprises a support plate and a support leg, the support leg has an "L" shape structure, the bottom of the support leg is fixedly connected with the bottom of the mounting cavity 41a, and the support plate is fixedly connected with the top of the support leg, and the heat insulation frame 43 is arranged on the side of the support plate away from the support leg.

[0059] In one embodiment, as shown in the figures, Figure 2 , Figure 4 and Figure 6 , the detection assembly 5 comprises a cold sleeve 561, a cold guide platform 531 and two cold guide pipes 532, all of which are arranged in the detection cavity 52a, the cold sleeve 561 is sleeved on the outer periphery of the photon detector 51, the cold guide platform 531 is arranged in close contact with the outer surface of the cold sleeve 561, one end of one of the two cold guide pipes 532 is in communication with the liquid inlet end of the cold guide platform 531, and the other end is used in communication with the liquid outlet end of the cold guide liquid device; one end of the other of the two cold guide pipes 532 is in communication with the liquid outlet end of the cold guide platform 531, and the other end is used in communication with the liquid return end of the cold guide liquid device. In this way, during the detection process, the cold guide liquid can circulate between the cold guide liquid device, the cold guide pipe 532 and the cold guide platform 531, so that the flowing cold guide liquid can ensure that the cold guide platform 531 is always in a low temperature state, and the cold guide platform 531 can conduct the low temperature to the cold sleeve 561 sleeved on the outer periphery of the photon detector 51 to cool the photon detector 51, so that the photon detector 51 can be in a low temperature state during the detection process, avoiding high temperature damage to the sensitivity of the photon detector 51, and ensuring the accuracy of detection.

[0060] Illustratively, the cold conducting table 531 is made of high thermal conductivity material, so that the cold conducting table 531 and the cold sleeve 561 can better transfer heat, so as to ensure that the photon detector 51 can be in a low temperature state.

[0061] Illustratively, the two cold conducting pipes 532 are light shielding pipes, so as to ensure that the cold conducting liquid does not absorb external light and increase in temperature during the flow process. The cold conducting liquid can include but is not limited to liquid nitrogen, water cooling, etc.

[0062] Further, in one embodiment, in combination with Figure 2 and Figure 6 As shown, the detection assembly 5 includes a second temperature detector 58, which is arranged between the photon detector 51 and the transparent detection window 572, and is electrically connected to the temperature controller 2. One of the two cold conducting pipes 532 and the cold conducting liquid device are provided with a liquid cooling pump, which is connected to the temperature controller 2. When the second temperature detector 58 detects that the temperature exceeds the preset detection temperature, the temperature controller 2 can control the liquid cooling pump to increase the speed. In this way, during the detection process, the second temperature detector 58 can detect the temperature of the position where the photon detector 51 is located in real time, and feed back the detected temperature to the temperature controller 2, so that the temperature controller 2 can determine whether the current temperature environment is higher than the highest acceptable detection temperature of the photon detector 51 according to the detected temperature, wherein the preset detection temperature is the highest acceptable detection temperature of the photon detector 51 during operation; so when the detected temperature is higher than the preset detection temperature, the speed of the liquid cooling pump can be controlled to increase, so as to speed up the circulation speed of the cold conducting liquid in the cold conducting table 531, so as to ensure that the cold sleeve 561 can effectively transfer cold to the photon detector 51, so that the photon detector 51 can always be in a low temperature state, ensure the sensitivity of the photon detector 51, ensure that the photon detector 51 can accurately acquire the photons emitted by the sample to be detected, and ensure the reliability of the detection.

[0063] Illustratively, the preset detection temperature can be input to the temperature controller 2 by the host computer 1. Further, the preset detection temperature can be between 10 and 20 degrees Celsius. Preferably, the preset detection temperature can be 15 degrees Celsius, at which the sensitivity of the photon detector 51 is best.

[0064] Illustratively, the second temperature detector 58 can be connected to the temperature controller 2 through the second vacuum joint 5a. The second temperature detector 58 and the second vacuum joint 5a are connected through a cable.

[0065] Optionally, in one embodiment, as Figures 2 to 4As shown, the detection cavity 52 is provided with two liquid cooling interfaces 533, one of the two liquid cooling interfaces 533 is used to connect the liquid outlet of the liquid cooling device with the corresponding cooling pipe 532, and the other of the two liquid cooling interfaces 533 is used to connect the liquid return of the liquid cooling device with the corresponding cooling pipe 532. In this way, the cooling pipe 532 can be conveniently connected with the liquid cooling device when the aging detection device 100 is used for detection. At the same time, the stability and reliability of the structural components in the detection cavity 52a can be ensured.

[0066] Illustratively, the two liquid cooling interfaces 533 are both arranged on the cover plate 522.

[0067] Optionally, in an embodiment, in combination with Figure 4 and Figure 6 As shown, the detection assembly 5 includes a support frame 562 arranged in the detection cavity 52a, one end of the support frame 562 is connected with the side wall of the detection cavity 52a, and the other end is connected with the cold jacket 561. In this way, the cold jacket 561 can be reliably fixed in the detection cavity 52a through the support frame 562, so that the photon detector 51, the cooling table 531 and the cooling pipe 532 can be stably arranged in the detection cavity 52a, and the photon detector 51 can reliably detect the photons emitted by the sample to be detected.

[0068] Illustratively, the support frame 562 includes a fixed portion and a connecting portion, the fixed portion and the connecting portion are arranged at an angle, the fixed portion is connected with the cover plate 522, one end of the connecting portion is connected with the fixed portion, and the other end is connected with the outer surface of the cold jacket 561.

[0069] Further, in an embodiment, as Figure 2 , Figure 4 and Figure 6As shown, the detection assembly 5 comprises a light shield plate 555, a transmission rod 553 and a driving member 551. The light shield plate 555 is movably arranged between the photon detector 51 and the cavity partition 57. The driving member 551 is arranged outside the detection cavity 52. One end of the transmission rod 553 is drivingly connected with the driving member 551, and the other end of the transmission rod 553 extends into the detection cavity 52a and is connected with the light shield plate 555. The transmission rod 553 is rotationally connected with the detection cavity 52. The light shield plate 555 has a light shielding position and a light guiding position. In the light shielding position, the light shield plate 555 is oppositely arranged with the transparent detection window 572, and is sealingly matched with the cold jacket 561 to prevent light from entering the photon detector 51. In the light guiding position, the light shield plate 555 is oppositely arranged with the transparent detection window 572 in the opposite direction of the photon detector 51 and the transparent detection window 572. The light shield plate 555 can be switched between the light shielding position and the light guiding position under the driving of the driving member 551. In this way, when the connection between the mounting cavity 41 and the cavity partition 57 is released to open the opening of the mounting cavity 41a, the light shield plate 555 can be driven to move to the light shielding position by the driving member 551, so that the light shield plate 555 can block light from entering the photon detector 51 by being oppositely arranged with the transparent detection window 572 and being sealingly matched with the cold jacket 561, thereby avoiding the photon detector 51 from being exposed to light for too long time when loading or replacing the sample to be detected, and damaging the photon detector 51. During detection, the light shield plate 555 can be driven to move to the light guiding position by the driving member 551, so that the photon detector 51 is in an exposed state, and the photon detector 51 can accurately detect the photons emitted by the sample to be detected to complete the aging detection.

[0070] Illustratively, the cold jacket 561 is provided with a light shielding sealing ring on the side close to the light shield plate 555. In the light shielding position, the light shield plate 555 can be sealingly matched with the cold jacket 561 through the light shielding sealing ring, so that the light shield plate 555 can play a light shielding effect.

[0071] Illustratively, in one embodiment, the driving member 551 is arranged on the side of the detection cavity 52 away from the mounting assembly 4. The extension direction of the transmission rod 553 is consistent with the opposite direction of the photon detector 51 and the transparent detection window 572, and the transmission rod 553 is rotationally connected with the detection cavity 52. The light shield plate 557 is arranged in parallel with the transparent detection window 572. In this way, when the driving member 551 drives the transmission rod 553 to rotate relative to the detection cavity 52, the light shield plate 557 can move between the light shielding position and the light guiding position by rotating in the plane, as shown in the following table. Figure 4In other embodiments, the driving member 551 can also be arranged outside the sidewall of the detection cavity 52, the extension direction of the transmission rod 553 is arranged perpendicularly to the relative direction between the photon detector 51 and the transparent detection window 572, and the transmission rod 553 is rotationally connected with the detection cavity 52. The light shielding plate 557 is rotationally arranged between the cold jacket 561 and the transparent detection window 572. In the light shielding position, the light shielding plate 557 is arranged opposite to the transparent detection window 572. In the light guiding position, the relative direction between the transparent detection window 572 and the photon detector 51 and the thickness direction of the light shielding plate 557 are arranged at an angle, so that the light shielding plate 557 can be arranged in dislocation with the transparent detection window 572 in the relative direction between the photon detector 51 and the transparent detection window 572. In this way, when the driving member 551 drives the transmission rod 553 to rotate relative to the detection cavity 52, the light shielding plate 557 can rotate between the light shielding position and the light guiding position by flipping between the photon detector 51 and the transparent detection window 572.

[0072] As shown in the schematic view of FIG. 6, the outer surface of the cold jacket 561 is provided with a fixing member 554. The end of the transmission rod 553 away from the driving member 551 penetrates through the fixing member 554 and is connected with the light shielding plate 555, and the transmission rod 553 is rotationally connected with the fixing member 554. Figure 4 In this way, the position of the transmission rod 553 in the detection cavity 52a can be limited by the fixing member 554, so as to ensure that the light shielding plate 555 can reliably move between the light shielding position and the light guiding position when the driving member 551 rotates the transmission rod 553, and the reliability of the photon detector 51 is ensured.

[0073] Optionally, in an embodiment, as shown in FIG. 7, the transmission rod 553 is arranged in the detection cavity 52a, and the transmission rod 553 is arranged in the detection cavity 52a in a manner penetrating through the sidewall of the detection cavity 52a. Figure 4 , Figure 6 and Figure 7As shown, the relative direction of the photon detector 51 and the transparent detection window 572 is consistent with the extension direction of the transmission rod 553, the light shield plate 555 is arranged in parallel with the transparent detection window 572, the detection assembly 5 comprises a limiting plate 556, the limiting plate 556 is arranged on the side of the light shield plate 555 close to the transparent detection window 572 and is arranged opposite to the transparent detection window 572, a detection opening opposite to the transparent detection window 572 is formed on the limiting plate 556, a first limiting protrusion 556a and a second limiting protrusion 556b are arranged on the side of the limiting plate 556 facing the cold sleeve 561, the first limiting protrusion 556a and the second limiting protrusion 556b are arranged on opposite sides of the limiting plate 556 respectively and are connected with the cold sleeve 561, the light shield plate 555 abuts against the first limiting protrusion 556a in the light shielding position; the light shield plate 555 abuts against the second limiting protrusion 556b in the light guiding position. In this way, when the driving member 551 drives the transmission rod 553, the light shield plate 555 can rotate in the limiting space formed by the limiting plate 556, the first limiting protrusion 556a, the second limiting protrusion 556b and the cold sleeve, specifically, when the light shield plate 555 moves to the position abutting against the first limiting protrusion 556a, the light shield plate 555 can effectively block the light from entering the photon detector 51, thereby achieving the light shielding effect, that is, the light shield plate 555 is in the light shielding position; when the light shield plate 555 moves to the position abutting against the second limiting protrusion 556b, the light shield plate 555 can be completely staggered with the transparent detection window 572 to ensure that the photons emitted by the sample to be detected can pass through the transparent detection window 572 and the detection opening 556c and be captured by the photon detector 51. Therefore, the arrangement of the first limiting protrusion 556a and the second limiting protrusion 556b can ensure that the light shield plate 555 reliably moves between the light shielding position and the light guiding position, thereby ensuring the reliability of the test.

[0074] As shown in the schematic diagram, Figure 6 As shown, the second temperature detector 58 is arranged on the side of the limiting plate 556 away from the cold sleeve 61.

[0075] Optionally, in an embodiment, the detection assembly 5 further comprises a third temperature detector 59, the third temperature detector 59 is arranged on the side of the limiting plate 556 close to the cold sleeve 61. Figure 2 and Figure 4As shown, the outer surface of the detection cavity 52 is provided with an opaque light shielding piece 552, which is provided with a transmission hole in communication with the detection cavity 52a, and the transmission rod 553 is connected with the light shielding plate 555 at the end far away from the driving piece 551, and the transmission rod 553 is rotatably sealed with the hole wall of the transmission hole. In this way, during the rotation of the transmission rod 553 relative to the light shielding piece 552 driven by the driving piece 551, the light shielding piece 552 can effectively prevent the external light from entering the detection cavity 52a from the gap between the transmission rod 553 and the detection cavity 52, so as to ensure that the detection process is carried out in the light shielding condition. In addition, since the transmission rod 553 can be rotatably sealed with the hole wall of the transmission hole, it can also effectively ensure that the detection process is carried out in a sealed condition, so as to avoid the influence of external factors on the reliability of the test.

[0076] Illustratively, the hole wall of the transmission hole is provided with a sealing ring, and the transmission rod 553 is sealed with the hole wall of the transmission hole through the sealing ring. Further, the number of sealing rings can be multiple, such as two, three or more, and the multiple sealing rings are arranged along the extension direction of the transmission rod to ensure the sealing effect between the hole wall of the transmission hole and the transmission rod 553.

[0077] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0078] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An aging detection device characterized by comprising: The application relates to a sample detection device. The device comprises a mounting assembly, a detection assembly, a host computer and a temperature controller. The mounting assembly comprises a mounting cavity, a sample cell and a heating assembly. The mounting cavity is provided with an open end and is light-tight. The sample cell and the heating assembly are arranged in the mounting cavity and the sample cell is arranged on the heating assembly. The sample cell is used for placing a sample to be detected.

2. The aging detection apparatus according to claim 1, characterized by The mounting cavity is provided with an air inlet and an air outlet.

3. The aging detection apparatus according to claim 2, characterized by The air inlet and the air outlet are communicated with the mounting cavity. The air outlet is used for flowing out the gas in the mounting cavity.

4. The aging detection apparatus according to claim 1, characterized by The detection assembly comprises a detection cavity, a photon detector and a cavity partition plate. The detection cavity is arranged on the mounting cavity. The detection cavity is provided with an open end and is light-tight. The open end of the detection cavity is arranged opposite to the open end of the mounting cavity. The photon detector is arranged in the detection cavity. The cavity partition plate is arranged on the open end of the detection cavity and is detachably and sealingly connected with the edge of the open end of the mounting cavity. The cavity partition plate is provided with a detection port opposite to the photon detector and the sample cell. The detection port is sealingly provided with a transparent detection window. The host computer is electrically connected with the photon detector. The temperature controller is electrically connected with the host computer and the heating assembly. The temperature controller can control the temperature of the sample cell to be a preset temperature through the heating assembly. The gas flow controller is used for connecting the air inlet with a gas source device. The gas flow controller is used for controlling the flow of the gas flowing into the mounting cavity. The heating assembly comprises a heating table, a heating pipe and a first temperature detector. The sample cell is arranged on the heating table. The heating pipe and the first temperature detector are arranged on the heating table and are electrically connected with the temperature controller. The first temperature detector is used for detecting the temperature of the heating table. When the first temperature detector detects that the temperature is higher or lower than the preset temperature, the temperature controller can adjust the current flowing into the heating pipe. The mounting assembly comprises a heat insulation frame and a support. One end of the support is connected with the cavity wall of the mounting cavity and the other end is connected with the side of the heating table away from the sample cell. The heat insulation frame is arranged between the heating table and the support. The mounting cavity is further provided with a first vacuum joint. The heating pipe and the first temperature detector are electrically connected with the temperature controller through the first vacuum joint. The detection assembly comprises a cold jacket, a cold lead table and two cold lead pipes. The cold jacket is arranged on the outer periphery of the photon detector. The cold lead table is arranged in close contact with the outer surface of the cold jacket. One end of one of the two cold lead pipes is communicated with the liquid inlet end of the cold lead table and the other end is used for being communicated with the liquid outlet end of a cold lead liquid device. One end of the other of the two cold lead pipes is communicated with the liquid outlet end of the cold lead table and the other end is used for being communicated with the liquid return end of the cold lead liquid device.

5. The aging detection apparatus according to claim 4, characterized by The detection assembly comprises a second temperature detector arranged between the photon detector and the transparent detection window, the second temperature detector is electrically connected with the temperature controller, one of the two cold pipes is provided with a liquid cooling pump between the liquid cooling device, the liquid cooling pump is connected with the temperature controller, and the temperature controller can control the liquid cooling pump to increase the rotating speed when the second temperature detector detects that the temperature exceeds the preset detection temperature.

6. The aging detection apparatus according to claim 4, characterized by The detection cavity is provided with two liquid cooling interfaces, one of the two liquid cooling interfaces is used for connecting the liquid outlet end of the liquid cooling device with the corresponding cold pipe, and the other liquid cooling interface is used for connecting the liquid return end of the liquid cooling device with the corresponding cold pipe. The detection assembly comprises a support frame arranged in the detection cavity, one end of the support frame is connected with the side wall of the detection cavity, and the other end is connected with the cold jacket.

7. The aging detection apparatus according to claim 4, characterized by The detection assembly comprises a light shielding plate, a transmission rod and a driving member, the light shielding plate is movably arranged between the photon detector and the cavity partition plate, the driving member is arranged outside the detection cavity, one end of the transmission rod is drivingly connected with the driving member, the other end of the transmission rod extends into the detection cavity and is connected with the light shielding plate, the transmission rod is rotationally connected with the detection cavity, the light shielding plate has a light shielding position and a light guiding position, in the light shielding position, the light shielding plate is arranged opposite to the transparent detection window and is sealingly matched with the cold jacket to prevent light from entering the photon detector; in the light guiding position, the light shielding plate and the transparent detection window are arranged in a staggered manner in the opposite direction of the photon detector and the transparent detection window, and the light shielding plate can move between the light shielding position and the light guiding position under the driving of the driving member.

8. The aging detection apparatus according to claim 7, characterized by The relative direction of the photon detector and the transparent detection window is consistent with the extension direction of the transmission rod, the light shielding plate and the transparent detection window are arranged in parallel, the detection assembly comprises a limiting plate, the limiting plate is arranged on the side of the light shielding plate close to the transparent detection window and is arranged opposite to the transparent detection window, a detection opening opposite to the transparent detection window is formed in the limiting plate, first and second limiting protrusions are protruded on the side of the limiting plate facing the cold jacket, the first and second limiting protrusions are arranged on opposite sides of the limiting plate respectively and are connected with the cold jacket, in the light shielding position, the light shielding plate abuts against the first limiting protrusion; in the light guiding position, the light shielding plate abuts against the second limiting protrusion.

9. The aging detection apparatus according to claim 7, characterized by The outer surface of the detection cavity is protruded with a light shielding member, the light shielding member is provided with a transmission hole communicating with the detection cavity, one end of the transmission rod away from the driving member penetrates through the transmission hole and is connected with the light shielding plate, and the transmission rod and the hole wall of the transmission hole are rotationally and sealingly matched.

10. The aging detection apparatus according to claim 1, characterized by The detection cavity is provided with a second vacuum joint, and the photon detector is electrically connected with the host computer through the second vacuum joint. And / or, the detection chamber is provided with a vacuum interface, the vacuum interface is in communication with the detection chamber, and the vacuum interface is used for communication with a vacuumizing device.

Images