CN111721642A - Temperature acceleration test system - Google Patents
Temperature acceleration test system Download PDFInfo
- Publication number
- CN111721642A CN111721642A CN202010573417.2A CN202010573417A CN111721642A CN 111721642 A CN111721642 A CN 111721642A CN 202010573417 A CN202010573417 A CN 202010573417A CN 111721642 A CN111721642 A CN 111721642A
- Authority
- CN
- China
- Prior art keywords
- temperature
- acceleration
- heat
- test
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to the technical field of reliability tests and discloses a temperature acceleration test system which comprises a temperature test box, a temperature sensor and a temperature sensor, wherein the temperature test box is used for simulating the environmental temperature stress of an acceleration component; the temperature test box comprises an electric connector, and the electric connector is connected with the acceleration component and is used for enabling the acceleration component to be in a charged working state; and the acceleration test bed is connected with the temperature test box and used for simulating the environmental acceleration stress of the acceleration component. Carry out the simulation of ambient temperature stress and environmental acceleration stress to acceleration components and parts simultaneously through temperature test case and acceleration test bench, test system installs the electric connector, can with the proof box in the acceleration components and parts are connected, make it realize electrified work, the signal of telecommunication data behind the simulation sample suffered ambient temperature stress and the environmental acceleration stress when real operating condition. The system is suitable for tests of design setting, fault excitation, reliability increase and the like of components.
Description
Technical Field
The invention relates to the technical field of reliability tests, in particular to a temperature acceleration test system.
Background
Acceleration components such as acceleration sensors and inertial switches are widely applied to equipment such as aerospace, transportation tools and control systems. In the working process, the device is influenced by the combined environmental factors of temperature, acceleration and the like. Under the action of temperature, the acceleration components and parts can present response characteristics which are completely different from those in a normal temperature environment due to the performance change of sensitive materials and the change of relative positions of structures caused by thermal expansion and cold contraction. The temperature-acceleration composite test can simulate the real working environment of a product and has important significance for accurately mastering the response characteristics of acceleration components. Meanwhile, the product fault can be more effectively excited by the temperature-acceleration composite test, the weak link of the product is exposed, and scientific basis is provided for the improvement of the product in design, materials and application.
At present, most of domestic mechanisms do not have the capability of carrying out temperature-acceleration composite tests, and can only be replaced by single temperature tests and single acceleration tests or sequential superposition of the single tests, so that single high-temperature tests and single acceleration tests are carried out on a sample high-temperature box and a centrifugal machine respectively at different times, the environmental simulation is not real enough, and the test effect is not good.
Disclosure of Invention
In view of this, it is necessary to provide a temperature acceleration test system for solving the problem that a temperature and acceleration composite test cannot be performed on an acceleration component at the same time.
A temperature acceleration test system comprises a temperature test box, a temperature sensor and a temperature sensor, wherein the temperature test box is used for simulating the environmental temperature stress of an acceleration component; the temperature test box comprises an electric connector, and the electric connector is connected with the acceleration component and is used for enabling the acceleration component to be in a charged working state; and the acceleration test bed is connected with the temperature test box and used for simulating the environmental acceleration stress of the acceleration component.
Above-mentioned temperature acceleration test system comes to carry out the simulation of ambient temperature stress and ambient acceleration stress to acceleration components and parts simultaneously through temperature test case and acceleration test bench, and test system installs the electric connector, can with in the test case acceleration components and parts are connected, make it realize live working, and the simulation sample is when true operating condition, suffers the signal of telecommunication data behind ambient temperature stress and the ambient acceleration stress. The temperature acceleration test system provided by the invention can truly simulate the charged working state of the acceleration component in the temperature and acceleration environment, and is suitable for the design and manufacture of the component and the development of tests and researches such as design shaping, fault excitation, reliability increase, applicability evaluation and the like of a using unit.
In one embodiment, the temperature test box comprises a heat-insulating shell, a temperature display, a temperature sensor and a heat-insulating cover, wherein the heat-insulating shell is of a hollow structure with an opening, one side, which is far away from the opening, of the heat-insulating shell is a bottom surface of the heat-insulating shell, and the bottom surface is fixed on the acceleration test bed; the heat-insulating cover is connected with the opening of the heat-insulating shell; a through hole is arranged on one side surface of the heat-insulating shell; the temperature display set up in the heat preservation casing is outside, temperature sensor set up in the heat preservation casing, temperature sensor passes through the through-hole with temperature display connects.
In one embodiment, the temperature display is embedded and sealed outside the heat preservation shell through ceramic glue; the temperature sensor is embedded and sealed in the heat-insulating shell through ceramic glue.
In one embodiment, the electrical connector is embedded in the thermal insulation shell through ceramic glue.
In one embodiment, the materials of the heat-insulating shell and the heat-insulating cover are both polyurethane plastics.
In one embodiment, the temperature acceleration test system further includes a fixing structure for fixing the acceleration component to the temperature test chamber and fixing the temperature test chamber to the acceleration test bed.
In one embodiment, the fixing structure comprises a fixing lock catch which is respectively connected with the heat-preservation shell and the heat-preservation cover, and the heat-preservation cover is fixedly connected with the heat-preservation shell through the fixing lock catch; the shell connecting foot seat is respectively connected with the heat preservation shell and the acceleration test bed, and the heat preservation shell is fixedly connected with the acceleration test bed through the shell connecting foot seat; the sample mounting seat is connected with the bottom of the heat-preservation shell and located inside the heat-preservation shell, and the acceleration component is fixed inside the heat-preservation shell through the sample mounting seat.
In one embodiment, the number of the fixed lock catches is multiple, and the multiple fixed lock catches are respectively and fixedly connected with four side surfaces of the heat preservation shell.
In one embodiment, the number of the shell connecting foot seats is multiple, and the multiple shell connecting foot seats are respectively and fixedly connected with four side surfaces of the heat-insulating shell.
In one embodiment, the sample mount is fixed inside the thermal insulation housing by screws.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a temperature acceleration testing system according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a temperature test chamber according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a temperature test chamber and an acceleration test bed according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," "circumferential," and the like are based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Acceleration components such as acceleration sensors and inertial switches are widely applied to equipment such as aerospace, transportation tools and control systems. In the working process of the acceleration component, the acceleration component is often influenced by the temperature, the acceleration and other composite environmental factors. Under the action of temperature, the acceleration components and parts can present response characteristics which are completely different from those in a normal temperature environment due to the performance change of sensitive materials and the change of relative positions of structures caused by thermal expansion and cold contraction. The temperature-acceleration composite test can simulate the real working environment of a product and has important significance for accurately mastering the response characteristics of acceleration components. Meanwhile, the product fault can be more effectively excited by the temperature-acceleration composite test, the weak link of the product is exposed, and scientific basis is provided for the improvement of the product in design, materials and application.
The domestic research on the temperature-acceleration composite test starts in the eighties of the last century. The Chinese institute of engineering and physics has designed a mode that hot-blast heating and heat preservation control combine together, installs the radome fairing outside the centrifuge, passes through the pipeline before centrifuge starts and to the inside hot-blast of radome fairing, after temperature balance, withdraws the pipeline, starts centrifuge, begins the test. The Chinese institute of engineering and physics is also the only unit in China with the function of carrying out the temperature-acceleration composite test on the whole machine, the temperature of which can reach 60 ℃, the bearing capacity of which is 1200kg and the acceleration of which is 110 g. However, the special temperature-acceleration composite test device developed for a specific task has poor universality and high cost, and general units cannot bear the load. At present, most of domestic mechanisms do not have the capability of carrying out temperature-acceleration composite tests, and can only be replaced by single temperature tests and single acceleration tests or sequential superposition of the single tests, so that single high-temperature tests and single acceleration tests are carried out on a sample high-temperature box and a centrifugal machine respectively at different times, the environmental simulation is not real enough, and the test effect is not good.
The invention discloses a temperature acceleration test system, which can carry out temperature and acceleration composite condition tests on components such as small electromechanical elements under the condition of electrification, is suitable for composite tests of most acceleration components, has real simulation effect on a temperature-acceleration composite environment, and is suitable for tests and researches such as design shaping, fault excitation, reliability increase, applicability evaluation and the like on component design and manufacture and using units. Fig. 1 is a block diagram of a temperature acceleration test system according to an embodiment of the present invention, which includes a temperature test chamber 100 and an acceleration test stand 200. The temperature test chamber 100 is used for simulating the environmental temperature stress of the acceleration component 20. The temperature test chamber 100 includes an electrical connector 110, and the electrical connector 110 is connected to the acceleration component 20, and is configured to enable the acceleration component 20 to be in a live working state. And the acceleration test bed 200 is connected with the temperature test box 100 and used for simulating the environmental acceleration stress of the acceleration component 20.
The temperature test box 120 is adopted to heat or refrigerate the interior of the test device, and the test device is closed after the temperature is balanced, so that the temperature is controlled, and the environmental temperature stress possibly suffered by the acceleration component 20 in the normal work process is simulated. In this embodiment, the temperature control range of the temperature test chamber 120 is-40 to 100 ℃, and covers all temperature ranges of the environmental temperature stress that the acceleration component 20 may experience in normal operation. The temperature acceleration test system can reach the preset test temperature by means of the temperature test box 100, so that a self-heating device is omitted, and the temperature test box has the advantages of simplicity and convenience in operation, light weight, small size, uniform temperature field and the like. The device of the temperature acceleration test system has the advantages of small self weight and high strength, the maximum acceleration test condition is 10g, the maximum bearing capacity is 2kg, and the device physical quantity of most acceleration components 20 can be basically met. The temperature acceleration test system can realize the test that the sample of the acceleration component 20 to be detected receives the temperature and the environmental acceleration stress under the condition of live working by installing the electric connector 110, thereby acquiring the electric signal data of the sample of the acceleration component 20 under the normal working state and detecting the device performance of the acceleration component 20 under the action of the temperature and the environmental acceleration stress.
Fig. 2 is a schematic cross-sectional view of a temperature test chamber 100 according to an embodiment of the present invention, wherein the temperature test chamber further includes an insulating housing 120, a temperature display 130, a temperature sensor 140, and an insulating cover 150. The heat-insulating shell 120 is a hollow structure with an opening, and one side of the heat-insulating shell, which is far away from the opening, is the bottom surface of the heat-insulating shell 120, and the bottom surface is fixed on the acceleration test bed 200. The heat-insulating cover 150 is connected to an opening of the heat-insulating housing 120. A through hole is formed on one side surface of the heat-insulating casing 120. The temperature display 130 is arranged outside the heat preservation shell, the temperature sensor 140 is arranged in the heat preservation shell 120, and the temperature sensor 140 is connected with the temperature display 130 through the through hole.
As shown in fig. 2, it can be seen that the thermal insulating case 120 has a hollow box structure with an opening, and when the temperature-acceleration composite test is performed on the acceleration component 20, the acceleration component 20 needs to be fixed inside the box of the thermal insulating case 120. The opening of the thermal insulation shell 120 is provided with the detachable thermal insulation cover 150. The shape and size of the heat-insulating cover 150 are matched with the shape and size of the opening of the heat-insulating shell 120. After the thermal cover 150 is fixedly assembled on the top of the thermal shell 120, the thermal shell 120 can be a closed box structure. By using the heat insulating cover 150 to form the heat insulating housing 120 into a closed box structure, it can be ensured that the temperature inside the temperature test chamber 100 is kept stable when the temperature-acceleration composite test is performed on the acceleration component 20. One side of the heat preservation shell 120, which is far away from the opening, is a bottom surface, and the bottom surface of the heat preservation shell 120 is fixed on the acceleration test bed 200. The heat-insulating housing 120 is fixed on the acceleration test bed 200, and is used for preventing the temperature test chamber 100 from falling off from the acceleration test bed 200 when the temperature-acceleration composite test is performed on the acceleration component 20.
A through hole is formed on one side surface of the heat preservation shell 120 perpendicular to the bottom surface. The temperature display 130 is disposed outside the heat-insulating casing, and the temperature sensor 140 is disposed inside the heat-insulating casing 120. The temperature sensor 140 is connected to the temperature display 130 through a signal transmission line, and the signal transmission line communicates the temperature sensor 140 disposed inside the thermal insulation casing 120 and the temperature display 130 disposed outside the thermal insulation casing 120 from a through hole. Set up in inside the heat preservation casing 120 temperature sensor 140 is right when acceleration components and parts 20 carries out temperature-acceleration combined test, right the inside temperature of temperature test case 100 is gathered to temperature data transmission who will gather through signal transmission line extremely set up in the heat preservation casing 120 is outside temperature display 130, temperature display 130 is to gathering temperature data handles and shows, promptly temperature display 130 shows in real time the ambient temperature stress that acceleration components and parts 20 experienced. The tester can obtain the temperature inside the temperature test chamber 100 in real time by observing the temperature data displayed on the temperature display 130, and perform corresponding test record or adjustment according to the observed temperature data.
In one embodiment, the temperature display 130 is embedded and sealed outside the thermal insulation casing 120 by ceramic glue; the temperature sensor 140 is embedded in the thermal insulation casing 120 by ceramic glue. The ceramic glue has excellent wettability, heat resistance and dielectric resistance. Since the ceramic paste has good heat resistance, the temperature display 130 is embedded outside the heat-insulating housing 120 and the temperature sensor 140 is embedded inside the heat-insulating housing 120, so that the temperature display 130 and the heat-insulating housing 120 can be prevented from loosening and falling off when the temperature test chamber 100 performs a high-temperature test.
In one embodiment, the electrical connector 110 is embedded in the thermal insulation housing 120 by ceramic glue. Similarly, since the ceramic paste has excellent wettability, heat resistance and dielectric resistance, when the electrical connector 110 is embedded in the thermal insulation housing 120, the electrical connector 110 can be prevented from loosening and falling off when the temperature test box 100 is subjected to a high temperature test.
In one embodiment, the materials of the thermal insulation housing 120 and the thermal insulation cover 150 are polyurethane plastics. The polyurethane plastic has excellent elasticity, elongation and compressive strength, has good chemical stability, can resist a plurality of solvents and oils, has excellent wear resistance, processability, heat insulation, adhesiveness and the like, and is a buffer material with excellent performance. Under the condition that the load capacity of the acceleration test bed 200 is limited, the range of the sample weight that the temperature test chamber 100 can bear is larger when the device weight of the temperature test chamber is lighter. Therefore, the light and thin polyurethane plastic is used as the material of the thermal insulation shell 120 and the thermal insulation cover 150, so that the dead weight of the temperature acceleration test system device can be effectively ensured to be small, the sample weight bearing range of the temperature acceleration test system can be enlarged, and the application range of the sample can be enlarged.
In one embodiment, the temperature acceleration test system further includes a fixing structure for fixing the acceleration component 20 to the temperature test chamber 100 and fixing the temperature test chamber 100 to the acceleration test bed 200. FIG. 3 is a schematic diagram of a temperature test chamber and an acceleration test bed according to an embodiment of the present invention. Since the acceleration test stand 200 is rotated about the central axis as shown in fig. 3 when the temperature-acceleration composite test is performed. The centripetal force caused by the rotation of the acceleration test stand 200 may cause the articles thereon to move and even be thrown out. Therefore, the temperature acceleration test system needs to fix the acceleration component 20 to the temperature test chamber 100 and fix the temperature test chamber 100 to the acceleration test bed 200 through a fixing structure, so as to prevent the acceleration component 20 and the temperature test chamber 100 from being moved and thrown out to damage and influence the test process during the test.
In one embodiment, the securing structure includes a securing latch 160, a housing connection foot 170, and a sample mount 180. The fixing latch 160 is respectively connected to the heat-insulating shell 120 and the heat-insulating cover 150, and the heat-insulating cover 150 is fixedly connected to the heat-insulating shell 120 through the fixing latch 160. The shell connecting foot base 170 is respectively connected with the heat preservation shell 120 and the acceleration test bed 200, and the heat preservation shell 120 is fixedly connected with the acceleration test bed 200 through the shell connecting foot base 170. The sample mounting seat 180 is connected to the bottom of the heat-insulating housing 120 and located inside the heat-insulating housing 120, and the acceleration component 20 is fixed inside the heat-insulating housing 120 through the sample mounting seat 180.
When the heat-insulating cover 150 is assembled at the opening of the heat-insulating housing 120, a fixing device is further required to ensure the stable connection between the heat-insulating cover 150 and the heat-insulating housing 120. The heat-insulating cover 150 can be firmly locked to the heat-insulating housing 120 by the fixing lock 160 and cannot easily fall off. When the temperature test chamber 100 is placed on the acceleration test bed 200 and a temperature-acceleration composite test is performed, a fixing device is further required to ensure the stable connection between the temperature test chamber 100 and the acceleration test bed 200. The temperature test chamber 100 can be firmly fixed on the top of the acceleration test stand 200 by the housing connection foot 170, and will not be thrown out due to centripetal force caused by acceleration. When the acceleration component 20 is placed inside the temperature test chamber 120, the acceleration component 20 and the temperature test chamber 100 also need to be fixed. The acceleration component 20 can be fixedly attached to the bottom surface inside the temperature test chamber 100 by the sample mounting base 180.
In one embodiment, the number of the fixing latches 160 is multiple, and the fixing latches 160 are respectively and fixedly connected to four side surfaces of the thermal insulation casing 120, so as to fixedly connect the thermal insulation cover 150 and the thermal insulation casing 120. In this embodiment, the number of the fixed latches 160 is four, and the four fixed latches 160 are respectively disposed at positions on four side surfaces of the heat preservation housing 120 near the upper edge of the opening. The heat preservation cover 150 and four sides that the heat preservation casing 120 contacted have respectively with four fixed structure that the position and the shape of fixed hasp 160 all correspond, fixed hasp 160 with fixed structure mutually supports, makes the heat preservation cover 150 firmly be fixed in the opening part on temperature test box upper portion makes temperature test box 100 becomes a inclosed box structure, guarantees when the experiment the inside temperature stability of temperature test box 100.
In one embodiment, the number of the housing connection foot mounts 170 is multiple, and the multiple housing connection foot mounts 170 are respectively and fixedly connected to four side surfaces of the thermal insulation housing 120, so as to fixedly connect the thermal insulation housing 120 and the acceleration test bed 200. Similarly, in this embodiment, the number of the housing connection sockets 170 is four, and four of the housing connection sockets 170 are respectively disposed on four side surfaces of the thermal insulation housing 120. Four the casing is connected the foot stool 170 set up respectively in the position that four sides of heat preservation casing 120 are close to the bottom on the heat preservation casing 120 need be fixed in when on the acceleration test bench 200, can be through the bolt with four the casing is connected the foot stool 170 with acceleration test bench 200 connects, guarantees heat preservation casing 120 with acceleration test bench 200 is firm to be connected.
In one embodiment, the sample mounting seat 180 is fixed inside the thermal insulation housing 120 by screws, and the acceleration component 20 also needs to be fixed with the sample mounting seat 180 by screws when being fixedly installed inside the temperature test chamber 100, so as to prevent the acceleration component 20 sample from moving inside the temperature test chamber 100 to damage the device when performing the temperature-acceleration composite test.
The method for carrying out the test by using the temperature acceleration test system provided by the invention specifically comprises the following steps:
(1) the sample was mounted. First, a sample of the acceleration component 20 to be measured is mounted on the sample mounting base 180 inside the temperature test chamber 100 by screws. After the acceleration component 20 is fixed inside the temperature test chamber 100, a signal transmission line passes through the electrical connector 110 and is introduced into the temperature test chamber 100 from the outside, and is connected to a sample of the acceleration component 20 to supply electricity to the sample of the acceleration component 20. And the acceleration component 20 sample to be detected enters a point working state.
(2) And controlling the temperature. The test temperature of the temperature test chamber 100 is set in advance, and the temperature in the temperature test chamber 100 is preheated or cooled to the set test temperature. The sample with the acceleration component 20 mounted thereon is placed in the temperature test chamber 100 without the heat insulating cover 150 mounted thereon. Observing the temperature data displayed on the temperature display 130 outside the temperature test chamber 100, waiting for the temperature of the temperature test chamber 100 to reach the preset test temperature and reach the equilibrium state, fixing the heat preservation cover 150 on the heat preservation shell 120 through four fixing latches 160, so that the temperature test chamber 100 becomes a closed box structure, and ensuring the temperature stability inside the temperature test chamber 100 during the experiment.
(3) And (5) mounting a testing device. The four housing connection bases 170 on the side of the temperature test chamber 100 are mounted on the acceleration test bed 200 by bolts, so that the temperature test chamber 100 is fixedly connected with the acceleration test bed 200. It is also necessary to connect the signal lines of the acceleration test stand 200 with the signal lines passing through the electrical connector 110. In addition, in order to ensure the balance of the weight of the acceleration test stand 200 and prevent the unbalance of the device due to the problem of the weight, two temperature test chambers 100 are installed, and the two temperature test chambers 100 are respectively arranged at symmetrical positions on both sides of the diameter of the acceleration test stand 200, as shown in fig. 3.
(4) A temperature-acceleration composite test was performed. And starting the acceleration test bed 200, so that the acceleration test bed 200 simulates environmental acceleration stress which the acceleration component 20 may face in practical application. Meanwhile, the sample of the acceleration component 20 inside the temperature test chamber 100 is subjected to the environmental temperature stress and is in a normal charged working state. The test sample signal of the acceleration component 20 is monitored, so that the electric signal data of the sample of the acceleration component 20 in a normal working state can be obtained, and the response characteristic of the acceleration component 20 under the action of temperature and environmental acceleration stress is detected.
By obtaining the response characteristics of the sample of the acceleration component 20 in the normal working state and in the temperature-acceleration composite environment, researches such as design and design finalization, fault excitation, reliability increase, and applicability evaluation can be performed on the acceleration component 20.
The temperature acceleration test system provided by the invention is provided with the temperature sensor 140 and the temperature display 130, so that the test of the acceleration component 20 sample under the preset temperature condition can be ensured, and the accuracy of the test result is improved. Meanwhile, the electric connector 110 is installed in the test system and can be communicated with a signal transmission line, so that the acceleration component 20 sample can work in a live-line mode when performing a temperature-acceleration composite test, and the state of the environment stress of the acceleration component 20 sample subjected to temperature and acceleration during real live-line work is simulated. Set up in inside the heat preservation casing 120 temperature sensor 140 is right when acceleration components and parts 20 carries out temperature-acceleration combined test, right the inside temperature of temperature test case 100 is gathered to temperature data transmission who will gather through signal transmission line extremely set up in the heat preservation casing 120 is outside temperature display 130, temperature display 130 is to gathering temperature data handles and shows, promptly temperature display 130 shows in real time the ambient temperature stress that acceleration components and parts 20 experienced. The tester can obtain the temperature inside the temperature test chamber 100 in real time by observing the temperature data displayed on the temperature display 130, and perform corresponding test record or adjustment according to the observed temperature data. In addition, the temperature acceleration test system can reach the preset test temperature through the temperature test box 100, so that a self-heating device is omitted, and the temperature acceleration test system has the advantages of simplicity and convenience in operation, light weight and small size. Under the condition that the acceleration test bed bears limited load, the lighter the dead weight of the system device is, the larger the range of sample weight borne by the system device is. Therefore, the maximum acceleration test condition of the test system reaches 10g, the maximum load reaches 2kg, and the test system basically meets the specifications of most acceleration components.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A temperature acceleration test system, comprising:
the temperature test box is used for simulating the environmental temperature stress of the acceleration component; the temperature test box comprises an electric connector, and the electric connector is connected with the acceleration component and is used for enabling the acceleration component to be in a charged working state;
and the acceleration test bed is connected with the temperature test box and used for simulating the environmental acceleration stress of the acceleration component.
2. The temperature acceleration test system of claim 1, wherein the temperature test chamber comprises a thermal insulation housing, a temperature display, a temperature sensor, and a thermal insulation cover,
the heat-insulating shell is of a hollow structure with an opening, one side, which is far away from the opening, is the bottom surface of the heat-insulating shell, and the bottom surface is fixed on the acceleration test bed; the heat-insulating cover is connected with the opening of the heat-insulating shell; a through hole is arranged on one side surface of the heat-insulating shell; the temperature display set up in the heat preservation casing is outside, temperature sensor set up in the heat preservation casing, temperature sensor passes through the through-hole with temperature display connects.
3. The temperature acceleration test system of claim 2, wherein the temperature display is embedded outside the thermal insulation housing by ceramic glue; the temperature sensor is embedded and sealed in the heat-insulating shell through ceramic glue.
4. The system according to claim 2, wherein the electrical connector is embedded in the thermal insulation housing by ceramic glue.
5. The temperature acceleration test system of claim 2, wherein the thermal insulation housing and the thermal insulation cover are both made of polyurethane plastic.
6. The temperature acceleration test system of any one of claims 1 to 5, further comprising:
and the fixing structure is used for fixing the acceleration component on the temperature test box and fixing the temperature test box on the acceleration test bed.
7. The temperature acceleration test system of claim 6, wherein the fixed structure comprises:
the fixed lock catch is respectively connected with the heat-insulation shell and the heat-insulation cover, and the heat-insulation cover is fixedly connected with the heat-insulation shell through the fixed lock catch;
the shell connecting foot seat is respectively connected with the heat preservation shell and the acceleration test bed, and the heat preservation shell is fixedly connected with the acceleration test bed through the shell connecting foot seat;
the sample mounting seat is connected with the bottom of the heat-preservation shell and located inside the heat-preservation shell, and the acceleration component is fixed inside the heat-preservation shell through the sample mounting seat.
8. The temperature acceleration test system of claim 7, wherein the number of the fixing latches is multiple, and the fixing latches are respectively fixedly connected with four side surfaces of the heat preservation housing.
9. The system according to claim 7, wherein the number of the housing connecting foot seats is plural, and the plural housing connecting foot seats are fixedly connected with four side surfaces of the heat preservation housing respectively.
10. The temperature acceleration testing system of claim 7, wherein the sample mount is secured inside the insulated housing by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573417.2A CN111721642A (en) | 2020-06-22 | 2020-06-22 | Temperature acceleration test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010573417.2A CN111721642A (en) | 2020-06-22 | 2020-06-22 | Temperature acceleration test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111721642A true CN111721642A (en) | 2020-09-29 |
Family
ID=72569910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010573417.2A Pending CN111721642A (en) | 2020-06-22 | 2020-06-22 | Temperature acceleration test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111721642A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777039A (en) * | 2014-01-10 | 2014-05-07 | 北京航空航天大学 | Centrifugal-temperature composite test box |
| CN104971786A (en) * | 2015-06-10 | 2015-10-14 | 天津航天瑞莱科技有限公司 | High atmospheric pressure environmental test chamber |
| CN106248106A (en) * | 2016-09-18 | 2016-12-21 | 中国航空工业集团公司北京长城计量测试技术研究所 | The calibrator (-ter) unit that precision centrifuge and accurate attemperating unit are combined |
| CN108535172A (en) * | 2018-03-28 | 2018-09-14 | 广州供电局有限公司 | Thermal aging test device and thermal aging test method |
| CN109142075A (en) * | 2018-09-28 | 2019-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of deep-sea pressure-resistance structure device for testing creep resistance |
| CN109540692A (en) * | 2019-01-04 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | Transient high temperature big overload heating power composite test device |
| CN209305870U (en) * | 2018-12-27 | 2019-08-27 | 中国工程物理研究院总体工程研究所 | A kind of integrated controller device suitable for heat centrifugation compbined test |
-
2020
- 2020-06-22 CN CN202010573417.2A patent/CN111721642A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777039A (en) * | 2014-01-10 | 2014-05-07 | 北京航空航天大学 | Centrifugal-temperature composite test box |
| CN104971786A (en) * | 2015-06-10 | 2015-10-14 | 天津航天瑞莱科技有限公司 | High atmospheric pressure environmental test chamber |
| CN106248106A (en) * | 2016-09-18 | 2016-12-21 | 中国航空工业集团公司北京长城计量测试技术研究所 | The calibrator (-ter) unit that precision centrifuge and accurate attemperating unit are combined |
| CN108535172A (en) * | 2018-03-28 | 2018-09-14 | 广州供电局有限公司 | Thermal aging test device and thermal aging test method |
| CN109142075A (en) * | 2018-09-28 | 2019-01-04 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of deep-sea pressure-resistance structure device for testing creep resistance |
| CN209305870U (en) * | 2018-12-27 | 2019-08-27 | 中国工程物理研究院总体工程研究所 | A kind of integrated controller device suitable for heat centrifugation compbined test |
| CN109540692A (en) * | 2019-01-04 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | Transient high temperature big overload heating power composite test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Troxler et al. | The effect of thermal gradients on the performance of lithium-ion batteries | |
| CN105911091A (en) | Test device and method for research of temperature field distribution characteristics under temperature-acceleration environment | |
| CN103884928B (en) | The lower microelectronic product reliability testing platform of power electric heating multi- scenarios method effect | |
| CN103616149B (en) | Whole star micro-vibration ground experiment free boundary analog supports frequency test method | |
| Kececioglu et al. | The Arrhenius, Eyring, inverse power law and combination models in accelerated life testing | |
| Capriglione et al. | Characterization of inertial measurement units under environmental stress screening | |
| CN111442944A (en) | Temperature-centrifugation composite environment assessment test device and test method | |
| CN111721642A (en) | Temperature acceleration test system | |
| Duan et al. | Robust thin-film temperature sensors embedded on nozzle guide vane surface | |
| US20100264949A1 (en) | Flexure band and use thereof in a probe card assembly | |
| CN209305870U (en) | A kind of integrated controller device suitable for heat centrifugation compbined test | |
| CN105867464B (en) | A kind of fluctuating acceleration environmental test hot loading device and hot loading method | |
| Spielberg et al. | Further studies on the molecular dynamics of the glass transition and the glass state using EPR probes | |
| Duan et al. | Development of accurate and robust high temperature sensor on aero-engine turbine blade surface | |
| Patrizi et al. | Temperature stress tests on low-cost IMU systems: Analysis and first proposal for enhancing performance | |
| CN207752069U (en) | Capacitor high temperature high resistant test device | |
| CN112340070B (en) | Design method of ground test system of high-stability temperature measurement and control system | |
| CN211855881U (en) | Temperature-centrifugal composite environment examination test device | |
| US7287903B2 (en) | Method and apparatus for rapid thermal testing | |
| Piombo et al. | Analysis of parallel connected lithium-ion cells imbalanced performance based on electrothermal modelling environment | |
| Caposciutti et al. | Temperature Effects and Damage Detection on CFRP through Electrical Impedance Spectroscopy | |
| CN106124103A (en) | The floating electric motor type dual-purpose dynamometer machine of engine transient dynamic test and dual-purpose method thereof | |
| CN214252101U (en) | Coating high temperature resistance testing device | |
| CN209606540U (en) | Electronic component temperature comprehensive testing device | |
| CN114184359A (en) | Ground test verification method for bending moment resistance of satellite waveguide switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |