Test unit sample preparation device applied to heat transport test
By designing the limiting groove and partition of the test unit sample preparation device, the problems of easy sample damage and complicated operation in thermal transport testing are solved, and efficient and reliable sample preparation is achieved.
Patent Information
- Application Number
- CN202422923393.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing heat transport tests involve cumbersome sample preparation, are prone to damage, and are time-consuming, labor-intensive, and inefficient.
The test unit sample preparation device uses a first limiting groove to fix the base part, a second limiting groove to limit the sample, and a partition to separate the wire part, which solves the problem of fixing the sample and the parts and avoids phenomena such as wire tangling.
It achieves simple and convenient sample preparation, reduces damage rate, improves sample preparation efficiency and process reliability, and ensures the stability of the sample preparation process.
Smart Images
Figure CN223526100U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of heat transport test sample preparation, and particularly relates to a test unit sample preparation device applied to heat transport test. BACKGROUND
[0002] Generally speaking, the low-temperature system equipped with heat transport test often needs to reach an extremely low temperature below 2K, and the power limitation in the cooling process and the precision of the measured components greatly limit the size of the sample chamber of the system, and the sample of the low-temperature test is usually small because the heat transport test needs to reach a nearly one-dimensional heat transfer process, and the sample preparation is complicated and difficult to prepare.
[0003] In the existing sample preparation process, the sample end of not more than 2*2*10mm is required to be adhered with heat-conducting glue to facilitate vertical standing on the cold end bottom support, and the other end is adhered with a heating source with two welded wires, then the long and narrow surface of the sample needs to be fixed with six test wires with heat-conducting glue, in order to reduce the increase of heat dissipation caused by too short wires, the above eight wires need to be wound into springs and not contact with each other. Because the sample size is small, the diameter of each wire is extremely thin and does not exceed 50μm, and the adhesion points of heat-conducting glue, heat-conducting and conductive glue and the like cannot be too large, therefore, all operations of heat transport test sample preparation need to be carried out under an industrial microscope, and the heat-conducting glue and the heat-conducting and conductive glue need to be dried and solidified for different hours.
[0004] In the above sample preparation process, slight changes in the position of the sample will cause the sample to fall down when the heat-conducting glue is not dry, the spring wires to fall off, deform and break, and the mutual entanglement and short circuit of the eight spring wires when the heat-conducting and conductive glue is not dry, and further cause damage to the sample, resulting in great unreliability in the sample preparation process and high sample damage rate. Because it is necessary to pay attention to avoiding various phenomena caused by slight changes in the position of the sample and various components required for testing during the sample preparation process, the preparation of the test unit consumes too much energy and time, the sample preparation operation is complicated and difficult, and the efficiency is low. UTILITY MODEL CONTENTS
[0005] In order to solve the problems of the prior art, the utility model provides a test unit sample preparation device applied to heat transport test, through the design of the test unit sample preparation device, the bottom support part is fixed by the first limiting groove, the sample is limited by the second limiting groove, and the wires are separated by the blocking piece, the fixing problem of each component of the sample in the sample preparation process of the heat transport sample is solved, the mutual entanglement between each wire part caused by slight displacement of the test unit is avoided, the sample can not be repeatedly taken and placed during the whole sample preparation process by one clamping of the sample, the whole sample preparation operation is simple and convenient, labor and time are saved, the unreliability in the sample preparation process and the sample damage rate are greatly reduced, and the sample preparation efficiency of the test unit is effectively improved.
[0006] The technical effects achieved by the utility model are realized through the following aspects:
[0007] The utility model provides a kind of test unit sample preparation device applied to heat transport test, sample includes bottom support part, sample, heating part and wire part, the lower end of the sample is connected with the bottom support part, the upper end of the sample is connected with the heating part, and the wire part is connected to the outer surface of the sample;Sample preparation device includes:
[0008] Fixed component is provided with first limit slot, and the first limit slot is used to fix the bottom support part, and
[0009] Barrier component is connected with the fixed component;
[0010] The barrier component includes barrier assembly arranged side by side in the first direction, and second limit slot is formed between the barrier assembly, and the second limit slot is used to limit the sample;
[0011] The barrier assembly includes barrier piece arranged side by side in the second direction, to block adjacent wire part.
[0012] In some implementations, the fixed component includes detachably connected first fixing piece and second fixing piece, the first fixing piece and the second fixing piece form the first limit slot, and the barrier component is connected to the second fixing piece.
[0013] In some implementations, one side of the first fixing piece is provided with a notch, and the second fixing piece is placed on the notch.
[0014] In some implementations, the first fixing piece is provided with a first threaded hole corresponding to the second fixing piece, the second fixing piece is provided with a second threaded hole corresponding to the first threaded hole, and the first threaded hole and the second threaded hole are fixedly connected by screw.
[0015] In some implementations, the second fixing piece is provided with a fixed slot corresponding to the barrier piece, and the barrier piece is fixedly inserted into the fixed slot.
[0016] In some implementations, the barrier component and the second fixing piece are integrally formed, and the barrier piece is formed by extending from the second fixing piece along the third direction.
[0017] In some implementations, the height of the second fixing piece is not greater than the height of the sample.
[0018] In some implementations, the second fixing piece is metal or non-metal temperature-resistant second fixing piece.
[0019] In some implementations, the second limiting slot has a width of 2-5 mm.
[0020] In some implementations, the second fixed part has a protrusion of 3-5 mm from the second fixed part.
[0021] In summary, the utility model has at least the following advantages:
[0022] 1、 the utility model provides a test unit sample preparation device, adopts first limiting slot to fixed bottom support part, second limiting slot is limited to sample, and adopts the barrier piece and separates the wire part, and further solves the fixed problem of sample and each spare part in the test unit sample preparation process, avoids the mutual entanglement phenomenon between each wire caused by the slight displacement of sample, realizes that sample can no longer be repeatedly taken and placed in the whole sample preparation process of once clamping sample, and the whole sample preparation operation is simple and convenient, saves the energy and the strength, greatly reduces the unreliability and sample damage rate in the sample preparation process, and effectively improves the sample preparation efficiency of test unit.
[0023] 2、 the utility model provides a test unit sample preparation device, and the structure design is practical, is favorable for the preparation of sample, guarantees the stability and reliability of sample preparation process, and the whole structure is simple and ingenious, and is convenient for production, can be widely used. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is the structure schematic view of the test unit in example 1.
[0025] Figure 2 It is the structure schematic view of the test unit sample preparation device in example 1.
[0026] Figure 3 It is the state schematic view of the test unit using test unit sample preparation device in example 1.
[0027] Figure 4 It is the separate structure schematic view of the test unit sample preparation device in example 1.
[0028] Figure 5 It is the bottom structure schematic view of the second fixed part in example 1.
[0029] Figure 6 It is Figure 4 The enlarged schematic view of part A.
[0030] Figure 7 It is the flow schematic view of sample preparation method in example 3.
[0031] Figure 8 It is the structure schematic view of test unit sample preparation device in example 3 for standing state.
[0032] Figure 9Figure 1 is a top view of a sample preparation device in a pouring state for testing the unit in Example 3.
[0033] Reference signs in the figures:
[0034] 1, fixed part, 11, first limiting groove, 12, first fixing part, 121, notch, 122, first threaded hole, 13, second fixing part, 131, second threaded hole, 1311, fixing groove; 2, blocking part, 21, blocking assembly, 211, blocking piece, 22, second limiting groove; 3, test unit, 31, bottom support part, 32, sample, 33, lead part, 34, heating part. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, rather than all the embodiments.
[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0037] Example 1:
[0038] Please refer to the drawings Figure 1 - the drawings Figure 3 The test unit 3 includes a bottom support part 31, a sample 32, a heating part 34 and a lead part 33. The lower end of the sample 32 is connected to the bottom support part 31, and the upper end of the sample 32 is connected to the heating part 34. The lead part 33 is connected to the outer surface of the sample 32. Specifically, the heating part 34 includes a heating source and two spring leads. The lead part 33 includes six spring leads. The bottom support part 31, the heating part 34 and the lead part 33 are all auxiliary components for the thermal conductivity and Seebeck test of the sample 32.
[0039] The sample preparation device includes a fixed part 1 and a blocking part 2. The fixed part 1 is provided with a first limiting groove 11 for fixing the bottom support part 31. The blocking part 2 is connected to the fixed part 1. The blocking part 2 includes blocking assemblies 21 arranged side by side in a first direction. The blocking assemblies 21 form a second limiting groove 22 therebetween for limiting the sample 32. The blocking assemblies 21 include blocking pieces 211 arranged side by side in a second direction to block adjacent lead parts 33.
[0040] In order to facilitate the description of the structure of the sample preparation device of the test unit of the utility model, first of all, the direction of space is defined, the first direction is X direction, and the second direction is Y direction.
[0041] Specifically, after the bottom support part 31 of the sample 3 is inserted into the first limiting groove 11, the bottom support part 31 can be fixed by screw locking, which is also convenient for subsequent loosening of the sample 3.
[0042] Preferably, the blocking assembly 21 is provided with two blocking assemblies 21, and each blocking assembly 21 is provided with three blocking pieces 211. The number of the blocking assembly 21 can be flexibly set according to the number of the lead part 33 in the sample 3.
[0043] The sample preparation device of the test unit in the embodiment has the following sample preparation action: firstly, the bottom support part 31 of the sample 3 is inserted into the first limiting groove 11, and the bottom support part 31 is locked and positioned by the existing screw. Secondly, the sample 32 is placed in the second limiting groove 22, and the bottom end of the sample 32 and the bottom support part 31 are fixedly connected by the heat-conducting adhesive, so as to position the sample 32. Subsequently, the semi-finished test unit preliminarily glued and the sample preparation device are moved to the oven as a whole, so that the heat-conducting adhesive is dried, and the absolute fixation of the sample, the heating part and the bottom support part is completed. Then, the test unit sample preparation device is placed upside down, the lead part 33 is adhered to the outer surface of the sample 32 by the heat-conducting and conductive adhesive, and the lead part 33 is placed apart by the blocking piece 211, so as to fix each part of the test unit 3. Finally, the sample preparation device is moved to the oven, that is, the test unit 3 is moved to the oven for baking, so that the connection is dried, and the sample 3 and the lead part 33 are fixed firmly.
[0044] Through the above-mentioned setting of the test unit sample preparation device, the bottom support part 31 is fixed by the first limiting groove 11, the sample 32 is limited by the second limiting groove 22, and the lead part 33 is separated by the blocking piece 211, so as to solve the fixation problem of each part of the test unit 3 in the sample preparation process, avoid the mutual entanglement between the lead parts caused by the slight displacement of the sample 32, realize that the sample 32 can not be repeatedly taken and placed during the whole sample preparation process by one-time clamping of the sample 32, and the whole sample preparation operation is simple and convenient, which saves time and effort, greatly reduces the unreliability and sample damage rate in the sample preparation process, and effectively improves the sample preparation efficiency of the heat transport sample test.
[0045] In addition, the structure of the test unit sample preparation device in the embodiment is beneficial to the preparation of the sample 3, can effectively ensure the stability and reliability of the sample preparation process, and has strong practicality. The whole structure is simple and ingenious, which is convenient for batch production of the test unit sample preparation device and is suitable for widespread promotion and use.
[0046] In some embodiments, please refer to the accompanying Figure 4The fixing component 1 comprises a first fixing part 12 and a second fixing part 13 which are detachably connected, a first limiting groove 11 is formed between the first fixing part 12 and the second fixing part 13, and the blocking component 2 is connected to the second fixing part 13. In this way, the fixing component 1 is divided into the first fixing part 12 and the second fixing part 13, which facilitates the maintenance and replacement of the parts in the later stage. Moreover, the width of the first limiting groove 11 can be flexibly adjusted according to the thickness of the bottom support part 31, and the flexibility and adaptability are higher.
[0047] Please refer to the accompanying drawings Figure 4 One side of the first fixing part 12 is provided with a notch 121, and the second fixing part 13 is placed on the notch 121. Specifically, the first fixing part 12 is an L-shaped first fixing part 12. Through the structural arrangement of the first fixing part 12, the assembly structure of the second fixing part 13 and the first fixing part 12 is compact, and the occupied space is small. Moreover, since the second fixing part 13 is placed at the notch 121, the corner of the first fixing part 12 provides strong support force to the second fixing part 13, thereby ensuring the stability of the placement of the second fixing part 13 and avoiding the movement of the test unit 3 caused by looseness, and effectively ensuring the reliability of sample preparation.
[0048] Please refer to the accompanying drawings Figure 4 - the accompanying drawings Figure 5 The first fixing part 12 is provided with a first threaded hole 122 corresponding to the second fixing part 13, the second fixing part 13 is provided with a second threaded hole 131 corresponding to the first threaded hole 122, and the first threaded hole 122 and the second threaded hole 131 are fixedly connected by a screw. Preferably, the first threaded hole 122 and the second threaded hole 131 are each provided with two. In this way, the first fixing part 12 and the second fixing part 13 are connected by the screw penetrating the first threaded hole 122 and the second threaded hole 131. This connection method is simple, and the tension operation of the bottom support part 31 in the test unit 3 is quick and easy, thereby improving the convenience of sample preparation.
[0049] In some embodiments, please refer to the accompanying drawings Figure 6 The second fixing part 13 is provided with a fixing groove 1311 corresponding to the blocking part 211, and the blocking part 211 is fixedly inserted into the fixing groove 1311. In this way, the blocking part 211 and the second fixing part 13 are two components, which facilitates the independent maintenance of the second fixing part 13 and the blocking part 211 in the later stage. Moreover, the size of the blocking part 211 can be flexibly changed according to the size of the sample 32 by embedding in the fixing groove 1311, and the flexibility and adaptability of the blocking part 211 are higher.
[0050] In some embodiments, the height of the second fixing member 13 is not greater than the height of the sample 32. Preferably, the height of the second fixing member 13 is designed to be no more than 10 mm, and the height of the sample 3 is generally 10 mm. In this way, the top of the sample 32 in the sample 3 is exposed, thereby facilitating the installation of other components on the top of the sample 32, such as the heating part 34, effectively improving the installation convenience.
[0051] In some embodiments, the width of the second limiting groove 22 is 2-5 mm. With this setting, it is convenient to place a standard sample 32 with a width of no more than 2 mm, and it can also play a role in assisting the standing of the sample 32.
[0052] In some embodiments, the barrier member 211 protrudes from the second fixing member 13 by 3-5 mm. Preferably, the barrier member 211 protrudes from the second fixing member 13 by 4 mm. In this way, the wire part 33 can be completely supported to avoid the wire part 33 from sliding out of the barrier member 211 during movement, effectively isolating adjacent wires from each other and improving the anti-shaking ability.
[0053] Embodiment 2:
[0054] The difference between this embodiment and embodiment 1 is that the barrier member 2 of this embodiment is integrally formed with the second fixing member 13, and the barrier member 211 extends from the second fixing member 13 in the third direction.
[0055] Preferably, the second fixing member 13 is a metal or non-metal temperature-resistant second fixing member, such as stainless steel, polytetrafluoroethylene, etc. Specifically, the temperature-resistant range of the material of the second fixing member is greater than 300 degrees Celsius.
[0056] With this setting, the barrier member 2 and the second fixing member 13 are a whole, which improves the installation convenience, is simple to operate, and has higher installation efficiency.
[0057] The test unit sample preparation device in this embodiment can be directly compression molded during the production process of the sample preparation device, so that the mold is also a whole, effectively simplifying the production process, facilitating the production of the sample preparation device, and accordingly improving the production efficiency of the sample preparation device.
[0058] Embodiment 3:
[0059] Based on the above-mentioned embodiments, please refer to Figures 7-9 , a sample preparation method is provided, which adopts the test unit sample preparation device as described above, and includes the following sample preparation steps:
[0060] S1, adjust the test unit sample preparation device to a standing state, then insert the bottom support part 31 into the first limiting groove 11, and fixedly connect it with the fixing member 1; the fixed connection can adopt screw locking, thereby facilitating the loosening and tightening action of the bottom support part 31;
[0061] S2, embedding the sample 32 into the second limiting groove 22, and fixing and connecting the bottom end of the sample 32 with the bottom support part 31 through the heat-conducting glue;
[0062] S3, fixing and connecting the top end of the sample 32 with the heating part 34 through the heat-conducting glue;
[0063] S4, moving the preliminary glued semi-finished test unit and the test unit sample preparation device as a whole to the oven, so that the heat-conducting glue is dried, and the absolute fixation of the sample 32 with the heating part 34 and the bottom support part 31 is completed;
[0064] S5, adjusting the test unit sample preparation device to a dumping state, connecting the lead part 33 with the outer surface of the sample 32 through the heat-conducting conductive glue, and separately arranging the spring leads in the lead part 33 through the blocking piece 211;
[0065] S6, moving the test unit 3 and the test unit sample preparation device to the oven, so that the heat-conducting glue and the heat-conducting conductive glue are dried, and the sample preparation is completed.
[0066] The test unit sample preparation method in the embodiment adopts the test unit sample preparation device, and in the sample preparation process, each component is placed in the corresponding position by the sample preparation device, so that each component in the sample is fixed, and it is not necessary to pay attention to the slight displacement to cause the mutual entanglement between the spring leads in the lead part 33 and the like, the operation is simple and convenient, the easiness of sample preparation is effectively improved, the heat transport sample preparation efficiency of the sample 32 is improved, and the reliability in the sample preparation process is improved, and the damage rate of the sample 32 is reduced.
[0067] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and the like terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction relationship of two elements inside two elements. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model in specific circumstances.
[0068] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.
[0069] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0070] In the utility model, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature therebetween. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.
[0071] Although the description of the utility model is combined with the above specific embodiments, it is obvious that persons skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A sample preparation device for a test unit used in thermal transport testing, the sample comprising a base portion, a sample, a heating portion, and a lead portion, the lower end of the sample being connected to the base portion, the upper end of the sample being connected to the heating portion, and the lead portion being connected to the outer surface of the sample; characterized in that, The sample preparation device comprises: a fixing part provided with a first limiting groove for fixing the bottom support part, and a blocking part connected with the fixing part; the blocking part comprises blocking components arranged side by side in a first direction, and a second limiting groove is formed between the blocking components for limiting the sample; the blocking components comprise blocking pieces arranged side by side in a second direction to block the adjacent wire parts.
2. The test cell sampling device for use in heat transport testing of claim 1, wherein, the fixing part comprises a first fixing piece and a second fixing piece connected detachably, and the first limiting groove is formed between the first fixing piece and the second fixing piece, and the blocking part is connected to the second fixing piece.
3. The test cell sampling device for use in heat transport testing of claim 2, wherein, one side of the first fixing piece is provided with a notch, and the second fixing piece is placed on the notch.
4. The test cell sampling device for use in heat transport testing of claim 2, wherein, the first fixing piece is provided with a first threaded hole corresponding to the second fixing piece, the second fixing piece is provided with a second threaded hole corresponding to the first threaded hole, and the first threaded hole and the second threaded hole are fixedly connected by a screw.
5. The test cell sampling device for use in heat transport testing of claim 2, wherein, the second fixing piece is provided with a fixing groove corresponding to the blocking piece, and the blocking piece is fixedly inserted into the fixing groove.
6. The test cell sampling device for use in heat transport testing of claim 2, wherein, the blocking part is integrally formed with the second fixing piece, and the blocking piece is extended from the second fixing piece along a third direction.
7. The test cell sampling device for thermal transport testing of any one of claims 2-6, wherein, the height of the second fixing piece is not greater than the height of the sample.
8. A test cell sampling device for use in thermal transport testing according to any one of claims 2-6, wherein, the second fixing piece is a metal or non-metal temperature-resistant second fixing piece.
9. The test cell sampling device for thermal transport testing of any one of claims 2-6, wherein, the width of the second limiting groove is 2-5 mm.
10. The test cell sampling device for use in heat transport testing of any one of claims 5-6, wherein, the blocking piece protrudes from the second fixing piece by 3-5 mm.