Novel degassing station
Through the thermally conductive elastic parts and step inner hole structure, the problems of poor heating effect and cumbersome replacement of joints are solved, and the compatibility of efficient heating and convenient replacement of sample tubes of different specifications is achieved.
Patent Information
- Application Number
- CN202420829937.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-06-21
- Filing Date
- 2024-04-19
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-19
AI Technical Summary
The existing degassing stations have high requirements for the heating body during the heating process, which leads to insufficient contact between the sample tube and the inner wall of the heating chamber, slow heat transfer, and cumbersome replacement of sample tube joints of different specifications, requiring additional tools.
The thermally conductive elastic parts are made of bending by the phosphorus copper sheet, combined with the stepped inner hole structure to achieve flexible contact between the sample tube and the heating device and compatibility between sample tubes of different specifications, reducing lifting and lowering Mechanical accuracy requirements and simplifies replacement process.
It improves the heating effect, reduces the accuracy requirements and commissioning costs of lifting mechanisms, avoids sample tube damage, and achieves convenient replacement and compatibility of sample tubes of different specifications.
Smart Images
Figure CN222299427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of degassing stations, in particular to a novel degassing station. Background Art
[0002] The degassing station is a degassing station for specific surface area testing instruments. The specific surface area test is used to test the specific surface characteristics of the negative electrode material of the automotive battery, which is an important indicator for improving the battery life. During the specific surface area test, the sample needs to be taken out and placed in a sample tube, and the sample tube is placed in the degassing station for degassing. The specific surface area data is calculated based on the mass of the empty sample tube and the mass of the degassed sample and sample tube to complete the specific surface area test of the sample.
[0003] Among them, when the degassing station is performing the degassing operation, the degassing station needs to heat the sample therein through the sample tube until the sample reaches the target temperature and maintains it for a period of time. At the same time, the sample tube needs to be evacuated to dehydrate and degas the sample. After the treatment is completed, there is a need to fill it with protective gas.
[0004] In the degassing station of the prior art, the heating body needs to be driven up by a lifting mechanism so that the sample tube containing the sample is inserted into the heating cavity of the heating body to heat the sample. Figure 1 As shown, when the heating body is not raised to the right position, there will be a large gap between the sample tube and the inner wall of the heating chamber, the air conducts heat slowly, and the heating effect is poor; when the heating body rises too high, the heating body is easy to smash the sample tube. This places high demands on the lifting accuracy of the lifting mechanism, requiring the sample tube to be in full contact with the inner wall of the heating chamber to ensure a good heating effect without damaging the sample tube. However, this will increase the accuracy requirements and debugging costs of the lifting mechanism; in addition, in the degassing station of the prior art, sample tubes of different diameters are required, so sample tube joints of different specifications are required, but replacing the joints requires additional tools, which is more cumbersome. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a novel degassing station which can fully contact the sample tube, has a good heating effect and can absorb lifting deviations.
[0006] The technical solution adopted by the utility model is as follows: the novel degassing station comprises a degassing station body, in which a vacuum module, a protective gas module, a cooling system, a lifting mechanism, a sample tube and a heating device are arranged; the heating device comprises a heat-insulating body, in which a heating block is arranged, a heating cavity is arranged on the heating block, an opening communicating with the heating cavity is arranged on the heat-insulating body, a heat-conductive elastic member is arranged in the heating cavity, the heating device is located below the sample tube, the lifting mechanism drives the heating device to move up and down, the lower end of the sample tube extends into the heating cavity when the heating device rises, the vacuum module is used for evacuating the sample tube, the protective gas module is used for filling the sample tube with protective gas, and the cooling system is used for cooling the sample tube.
[0007] Furthermore, the bottom of the thermally conductive elastic member is in the shape of a conical claw or a hemisphere.
[0008] Furthermore, the interior of the heat-conductive elastic member has a cavity for the sample tube to extend into, and the upper end of the heat-conductive elastic member is provided with a flange, and the flange is fixed between the heating block and the heat-insulating body.
[0009] Furthermore, the thermally conductive elastic member is formed by bending a phosphor copper sheet, and a notch is provided on the thermally conductive elastic member.
[0010] Furthermore, the thickness of the phosphor copper sheet is 0.1 mm.
[0011] Furthermore, the upper end of the sample tube is connected to the degassing station body through a sample tube joint, and the sample tube joint includes a valve body, a nut and a sealing ring. The sample tube is connected to the valve body, the sealing ring is located in the valve body and is sleeved on the sample tube, the nut is threadedly connected to the lower end of the valve body and is sleeved on the sample tube, and the nut squeezes the sealing ring when tightened.
[0012] Furthermore, a stepped inner hole structure is provided in the valve body, and the stepped inner hole structure includes a plurality of connecting holes arranged sequentially from top to bottom, and the apertures of the plurality of connecting holes increase sequentially from top to bottom, and the upper ends of the plurality of connecting holes have contact planes, and when the sample tube is connected to the corresponding connecting hole, it rests on the corresponding contact plane.
[0013] Furthermore, the sample tube and the connecting hole are clearance-fitted.
[0014] The beneficial effects of the utility model are:
[0015] Compared with the shortcomings of the prior art, in the present invention, due to the setting of the thermally conductive elastic member, when the sample tube contacts the thermally conductive elastic member and continues to move, the thermally conductive elastic member can undergo elastic deformation, thereby achieving flexible contact between the sample tube and the thermally conductive elastic member, so as to ensure that the thermally conductive elastic member fully contacts the sample tube. Compared with the air heat transfer of the prior art, the present invention has a better heating effect; secondly, the present invention only needs to control the rising position of the lifting mechanism between the bottom of the thermally conductive elastic member and the sample tube just contacting to the limit of the elastic deformation of the thermally conductive elastic member, thereby reducing the accuracy requirements and debugging costs of the lifting mechanism, improving the fault tolerance rate of the lifting mechanism when rising, and avoiding the situation where the sample tube is damaged due to excessive rising of the lifting mechanism, so that the present invention has the advantages of being able to fully contact the sample tube, having a good heating effect, and being able to absorb lifting deviations;
[0016] In order to be compatible with sample tubes of different specifications and to facilitate the replacement of sample tubes, the utility model sets a stepped inner hole structure, which not only facilitates the replacement of sample tubes, but also does not require the use of additional tools when replacing sample tube joints, which is relatively simple, and can ensure that the bottoms of sample tubes of different specifications are all flush, so as to ensure that the heating device can be compatible with sample tubes of different specifications and achieve full contact, so that the novel degassing station has the advantage of easy replacement of sample tubes. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 It is a schematic diagram of the planar structure of the prior art;
[0019] Figure 2 It is a three-dimensional structural schematic diagram of the heating device of the utility model in a cross-sectional state;
[0020] Figure 3 It is a three-dimensional structural schematic diagram of the heating device of the utility model when the sample tube is inserted;
[0021] Figure 4 It is a three-dimensional structural schematic diagram of the thermal conductive elastic member of the utility model;
[0022] Figure 5 It is a planar development schematic diagram of the thermal conductive elastic member of the utility model;
[0023] Figure 6It is a schematic diagram of the planar structure of the thermal conductive elastic member of the utility model in contact with the sample tube at different lifting heights;
[0024] Figure 7 It is a three-dimensional structural schematic diagram of the novel degassing station of the utility model;
[0025] Figure 8 It is a three-dimensional structural schematic diagram of the sample tube and the sample tube joint of the utility model;
[0026] Fig. 9 It is a schematic diagram of the planar structure of the sample pipe joint of the utility model in a cross-sectional state;
[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the sample pipe joint of the utility model in a cross-sectional state.
[0028] The reference numerals are as follows:
[0029] 1. Insulation body; 2. Heating block; 3. Heating chamber; 5. Opening; 6. Thermally conductive elastic member; 7. Cavity; 8. Flange; 9. Notch; 10. Degassing station body; 11. Cooling system; 12. Lifting mechanism; 13. Sample tube; 15. Heating device; 16. Sample tube joint; 17. Valve body; 18. Nut; 19. Sealing ring; 20. Connecting hole; 21. Contact plane;
[0030] 3-1, 1 / 2 inch sample tube; 3-2, 3 / 8 inch sample tube; 22, first connecting hole; 23, second connecting hole; 25, third connecting hole; 26, first plane; 27, second plane; 28, third plane.
[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0035] like Figures 1 to 7 As shown, the utility model also provides a novel degassing station, which includes a degassing station body 10, in which a vacuum module, a protective gas module, a cooling system 11, a lifting mechanism 12, a sample tube 13 and a heating device 15 are arranged, and the heating device 15 includes a heat-insulating body 1, in which a heating block 2 is arranged, and a heating chamber 3 is arranged on the heating block 2, and an opening 5 communicating with the heating chamber 3 is arranged on the heat-insulating body 1, and a heat-conductive elastic member 6 is arranged in the heating chamber 3, and the heating device 15 is located below the sample tube 13, and the lifting mechanism 12 drives the heating device 15 to move up and down, and the lower end of the sample tube 13 extends into the heating chamber 3 when the heating device 15 rises, the vacuum module is used to evacuate the sample tube 13, the protective gas module is used to fill the protective gas into the sample tube 13, and the cooling system 11 is used to cool the sample tube 13.
[0036] Specifically, the insulation body 1 is insulation cotton; the sample tube 13 extends into the heating chamber 3 from the opening 5 and flexibly contacts the thermally conductive elastic member 6, wherein the thermally conductive elastic member 6 can fully contact the heating block 2 and also flexibly contact the sample tube 13, and as a thermally conductive medium, can quickly transfer the heat of the heating block 2 to the bottom of the sample tube 13 to achieve the heating operation of the sample in the sample tube 13.
[0037] like Figure 6 As shown, Figure 6 Part A is the state where the sample tube 13 is just in contact with the thermally conductive elastic member 6; Figure 6 Part B is a state where the sample tube 13 is in full contact with the thermally conductive elastic member 6, and at this time, the thermally conductive elastic member 6 undergoes elastic deformation; Figure 6 The C portion is a state where the sample tube 13 and the thermally conductive elastic member 6 are separated from each other. At this time, the thermally conductive elastic member 6 recovers its shape, and repeated buffering can be achieved.
[0038] With respect to the shortcomings of the prior art, in the present invention, due to the arrangement of the heat-conductive elastic member 6, when the sample tube 13 contacts the heat-conductive elastic member 6 and continues to move, the heat-conductive elastic member 6 can undergo elastic deformation, thereby achieving flexible contact between the sample tube 13 and the heat-conductive elastic member 6, so as to ensure that the heat-conductive elastic member 6 fully contacts the sample tube. Compared with the air heat transfer of the prior art, the present invention has a better heating effect; secondly, the present invention only needs to control the rising position of the lifting mechanism 12 to the point where the bottom of the heat-conductive elastic member 6 just contacts the sample tube 13 (position such as Figure 6 A portion) to the limit of elastic deformation of the thermally conductive elastic member 6 (position such as Figure 6 The requirement on the precision and debugging cost of the lifting mechanism 12 are reduced, the fault tolerance of the lifting mechanism 12 when it rises is improved, and the damage of the sample tube caused by the excessive rise of the lifting mechanism 12 is avoided, so that the utility model has the advantages of being able to fully contact the sample tube, having a good heating effect and being able to absorb the lifting deviation.
[0039] like Figures 4 to 5 As shown, in some embodiments, the bottom of the thermally conductive elastic member 6 is configured in a conical claw shape. Specifically, by configuring the bottom of the thermally conductive elastic member 6 in a conical claw shape, the contact area between the bottom of the thermally conductive elastic member 6 and the bottom of the sample tube 13 can be increased to improve the heating efficiency; secondly, the bottom of the thermally conductive elastic member 6 is made into a claw shape and has a certain elasticity, which can repeatedly absorb the lifting height deviation of the lifting mechanism 12.
[0040] like Figures 4 to 5 As shown, in some embodiments, the interior of the thermally conductive elastic member 6 has a cavity 7 for the sample tube 13 to extend into, and the upper end of the thermally conductive elastic member 6 is provided with a flange 8, and the flange 8 is fixed between the heating block 2 and the heat-insulating body 1; the thermally conductive elastic member 6 is formed by bending a phosphor copper sheet with a thickness of 0.1 mm, and the thermally conductive elastic member 6 has a notch 9. Specifically, when the phosphor copper sheet is unfolded, its cross section is polygonal, and the notch 9 is formed by cutting, and the thermally conductive elastic member 6 is formed by bending inward, and the phosphor copper sheet is a C5191 phosphor copper sheet, which has the characteristics of good thermal conductivity, easy forming and certain elastic deformation. The structure of the 0.1 mm thick C5191 phosphor copper sheet and the flange 8 is conducive to bending and cutting processing and forming; the arrangement of the flange 8 clamped between the heating block 2 and the heat-insulating body 1 can facilitate the disassembly and assembly of the thermally conductive elastic member 6, and can better fit the inner wall of the heating chamber 3.
[0041] like Figures 8 to 10As shown, in some embodiments, the upper end of the sample tube 13 is connected to the degassing station body 10 through a sample tube connector 16, and the sample tube connector 16 includes a valve body 17, a nut 18 and a sealing ring 19. The sample tube 13 is connected to the valve body 17, and the sealing ring 19 is located in the valve body 17 and is sleeved on the sample tube 13. The nut 18 is threadedly connected to the lower end of the valve body 17 and is sleeved on the sample tube 13. The nut 18 squeezes the sealing ring 19 when tightened.
[0042] During installation, the sample tube 13 is inserted from the bottom of the inner diameter of the nut 18, and the sealing ring 19 is inserted into the sample tube 13, and the sealing ring 19 is located above the nut 18, thereby forming an assembly, and the assembly is further inserted into the valve body 17, so that the upper end of the sample tube 13 is against the valve body 17, and the nut 18 is tightened, so that the cavity where the sealing ring 19 is located becomes smaller and smaller, until the sealing ring 19 undergoes a significant deformation, and the nut 18 cannot be turned manually, thereby having a good sealing effect to ensure that the subsequent vacuum operation of the sample tube 13 can be carried out smoothly.
[0043] In some embodiments, a stepped inner hole structure is provided in the valve body 17, and the stepped inner hole structure includes a plurality of connecting holes 20 arranged sequentially from top to bottom, and the apertures of the plurality of connecting holes 20 increase sequentially from top to bottom, and the upper ends of the plurality of connecting holes 20 have contact planes 21, and when the sample tube 13 is connected to the corresponding connecting hole 20, it rests on the corresponding contact plane 21; there is a clearance fit between the sample tube 13 and the connecting hole 20.
[0044] In order to be compatible with sample tubes 13 of different specifications and to facilitate the replacement of sample tubes 13, the utility model sets a stepped inner hole structure, which not only facilitates the replacement of sample tubes 13, but also does not require additional tools when replacing the sample tube connector 16, which is relatively simple. It can also ensure that the bottoms of sample tubes 13 of different specifications are flush, so as to ensure that the heating device 15 is compatible with sample tubes 13 of different specifications and achieves full contact, so that the novel degassing station has the advantage of facilitating the replacement of sample tubes.
[0045] Specifically, for ease of explanation, this embodiment takes the sample tube 3-1 with specifications of 1 / 2 inch and the sample tube 3-2 with specifications of 3 / 8 inch as examples, and the length of the sample tube 3-1 with specifications of 1 / 2 inch is shorter than the length of the sample tube 3-2 with specifications of 3 / 8 inch. Specifically, the plurality of connection holes 20 are respectively the first connection hole 22, the second connection hole 23 and the third connection hole 25 from bottom to top, the first connection hole 22 has the largest aperture, the second connection hole 23 has the second aperture, and the third connection hole 25 has the smallest aperture; the contact plane 21 at the upper end of the first connection hole 22 is the first plane 26, the contact plane 21 at the upper end of the second connection hole 23 is the second plane 27, and the contact plane 21 at the upper end of the third connection hole 25 is the third plane 28;
[0046] When installing the 1 / 2 inch sample tube 3-1, the second plane 27 of the second connecting hole 23 abuts against the upper end of the 1 / 2 inch sample tube 3-1; the second connecting hole 23 and the 1 / 2 inch sample tube 3-1 are clearance-matched and tightened by a nut 18 of corresponding specifications, so that the cavity where the sealing ring 19 is located becomes smaller and smaller until the sealing ring 19 is greatly deformed to achieve sealing;
[0047] When replacing the 3 / 8-inch sample tube 3-2, only the corresponding sealing ring 19 and nut 18 need to be replaced. The third plane 28 of the third connecting hole 25 is in contact with the upper end of the 3 / 8-inch sample tube 3-2; the third connecting hole 25 and the 3 / 8-inch sample tube 3-2 are gap-matched, and the nut 18 is also tightened to make the cavity where the sealing ring 19 is located smaller and smaller until the sealing ring 19 is greatly deformed to achieve sealing.
[0048] It should be noted that the cavity where the sealing ring 19 is located is formed between the outer wall of the sample tube 13, the first plane 26 of the first connecting hole 22 of the valve body 17, the first connecting hole 22 and the upper end of the nut 18, and the cavity is sealed by the elastic deformation of the sealing ring 19.
[0049] It is worth mentioning that the vertical distance between the second plane 27 and the third plane 28 is 6 mm. When the length of the 1 / 2 inch sample tube 3-1 is 230 mm, the length of the 3 / 8 inch sample tube 3-2 is designed to be 236 mm, that is, the height difference of the sample tubes is determined by the vertical distance of the shoulders of the several connecting holes 20, which can ensure that the bottoms of the 1 / 2 inch sample tube 3-1 and the 3 / 8 inch sample tube 3-2 are flush, thereby ensuring that the heating device 15 is compatible with both the 1 / 2 inch sample tube 3-1 and the 3 / 8 inch sample tube 3-2, and can fully contact both.
[0050] In addition, the method for using the novel degassing station of the utility model comprises the following steps:
[0051] Step S1, the lifting mechanism 12 drives the heating device 15 to move upward, so that the lower end of the sample tube 13 extends into the heating chamber 3 and flexibly contacts the bottom of the thermally conductive elastic member 6;
[0052] Step S2, heating the sample tube 13 to a specified temperature;
[0053] Step S3, evacuating the sample in the sample tube 13;
[0054] Step S4, filling protective gas into the sample tube 13;
[0055] Step S5, the lifting mechanism 12 drives the heating device 15 to move downward to reset;
[0056] Step S6, cooling the sample tube 13;
[0057] Step S7, taking out the sample tube 13.
[0058] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A new type of degassing station, characterized by: The degassing station comprises a degassing station body (10), wherein the degassing station body (10) is provided with a vacuum module, a protective gas module, a cooling system (11), a lifting mechanism (12), a sample tube (13) and a heating device (15), wherein the heating device (15) comprises a heat-insulating body (1), wherein a heating block (2) is provided in the heat-insulating body (1), wherein a heating cavity (3) is provided on the heating block (2), wherein an opening (5) communicating with the heating cavity (3) is provided on the heat-insulating body (1), wherein a heating cavity (3) is provided in the heating cavity (3). The heat-conductive elastic member (6) is provided, the heating device (15) is located below the sample tube (13), the lifting mechanism (12) drives the heating device (15) to move up and down, the lower end of the sample tube (13) extends into the heating chamber (3) when the heating device (15) rises, the vacuum module is used to evacuate the sample tube (13), the protective gas module is used to fill the protective gas into the sample tube (13), and the cooling system (11) is used to cool the sample tube (13).
2. The novel degassing station according to claim 1 is characterized in that: The bottom of the heat-conducting elastic member (6) is in the shape of a conical claw or a hemisphere.
3. The novel degassing station according to claim 2 is characterized in that: The interior of the heat-conducting elastic member (6) has a cavity (7) for the sample tube (13) to extend into, and the upper end of the heat-conducting elastic member (6) is provided with a flange (8), and the flange (8) is fixed between the heating block (2) and the heat-insulating body (1).
4. The novel degassing station according to claim 3 is characterized by: The thermally conductive elastic member (6) is formed by bending a phosphor copper sheet, and a notch (9) is provided on the thermally conductive elastic member (6).
5. The novel degassing station according to claim 4 is characterized by: The thickness of the phosphor copper sheet is 0.1 mm.
6. The novel degassing station according to claim 1 is characterized by: The upper end of the sample tube (13) is connected to the degassing station body (10) through a sample tube joint (16); the sample tube joint (16) comprises a valve body (17), a nut (18) and a sealing ring (19); the sample tube (13) is connected to the valve body (17); the sealing ring (19) is located in the valve body (17) and is sleeved on the sample tube (13); the nut (18) is threadedly connected to the lower end of the valve body (17) and is sleeved on the sample tube (13); the nut (18) squeezes the sealing ring (19) when tightened.
7. The novel degassing station according to claim 6 is characterized by: The valve body (17) is provided with a stepped inner hole structure, the stepped inner hole structure comprises a plurality of connecting holes (20) arranged in sequence from top to bottom, the apertures of the plurality of connecting holes (20) are increased in sequence from top to bottom, the upper ends of the plurality of connecting holes (20) are provided with contact planes (21), and the sample tube (13) abuts against the corresponding contact planes (21) when connected to the corresponding connecting holes (20).
8. The novel degassing station according to claim 7 is characterized by: The sample tube (13) and the connecting hole (20) are clearance-fitted.