Carbon nanotube conductivity detection device

Abstract

The utility model relates to the field of carbon nanotube conductivity detection, in particular to a carbon nanotube conductivity detection device which comprises a shell, a mounting plate arranged at the bottom of the shell, a rotating mechanism arranged below the mounting plate, a detection barrel arranged in the shell, and a supporting rod arranged in the middle of the interior of the detection barrel. A plurality of fixing frames distributed regularly are arranged on the supporting rod, a storage pipe is arranged in the end, away from the supporting rod, of each fixing frame, a conductive mechanism is arranged at the bottom of each storage pipe, a barrel cover is arranged above the detection barrel, a plurality of sealing covers are arranged below the barrel cover, a shell cover is arranged above the barrel cover, and a rotating shaft is arranged in the middle of the top face of the barrel cover. A round hole is formed in the shell cover, a bearing is arranged in the round hole and matched with the rotating shaft, rolling grooves are formed in the inner wall of the shell and the outer wall of the detection barrel, and a plurality of rolling wheels are arranged in the rolling grooves. According to the utility model, the conductive performance of the carbon nanotube is detected through the conductive mechanism, and precipitation of conductive slurry of the carbon nanotube is reduced through the rotating mechanism.

Description

Technical Field

[0001] The utility model relates to the field of carbon nanotube conductivity detection, in particular to a carbon nanotube conductivity detection device. Background Art

[0002] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a special structure. Carbon nanotubes are mainly composed of coaxial circular tubes with several to dozens of layers of carbon atoms arranged in hexagons. As a one-dimensional nanomaterial, it is light in weight and has a perfectly connected hexagonal structure. Carbon nanotube conductive paste is a new type of high-efficiency conductive agent for lithium batteries. It can replace traditional conductive agents such as conductive carbon black, conductive graphite, and conductive carbon fiber. It has superior characteristics such as ultra-high aspect ratio, ultra-large specific surface area, and ultra-low volume resistivity.

[0003] The conductivity detection device is mainly detected by a conductivity detector. However, due to the high viscosity of the conductive paste, the conductive paste is easy to precipitate during the measurement, resulting in deviations in the measurement results. Therefore, a carbon nanotube conductivity detection device is proposed to address the above problem. Utility Model Content

[0004] The utility model aims to provide a carbon nanotube conductivity detection device, which detects the conductivity of carbon nanotubes through a conductive mechanism and reduces the precipitation of carbon nanotube conductive slurry through a rotating mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for detecting the conductive performance of carbon nanotubes comprises a shell, a mounting plate is arranged at the bottom of the shell, a rotating mechanism is arranged below the mounting plate, a detection barrel is arranged inside the shell, a support rod is arranged in the middle of the detection barrel, a plurality of regularly distributed fixing frames are arranged on the support rod, a storage tube is arranged inside one end of the fixing frame away from the support rod, a conductive mechanism is arranged at the bottom of the storage tube, a barrel cover is arranged above the detection barrel, a plurality of sealing covers are arranged below the barrel cover, and the sealing covers are matched with the storage tube, an outer shell cover is arranged above the barrel cover, a rotating shaft is arranged in the middle of the top surface of the barrel cover, a circular hole is arranged inside the outer shell cover, a bearing is arranged inside the circular hole, and the bearing cooperates with the rotating shaft, a rolling groove is arranged on the inner wall of the shell and the outer wall of the detection barrel, a plurality of rollers are arranged inside the rolling groove, and a fixing notch is arranged at the upper end of the outer shell cover.

[0007] As a preferred solution, the rotating mechanism includes a rotating shaft 1 fixedly arranged under the detection barrel, and the rotating shaft 1 passes through the mounting plate, a bevel gear 1 is arranged at the lower end of the rotating shaft, a driving motor is arranged under the mounting plate, a rotating shaft 2 is arranged at the right end of the driving motor, a bevel gear 2 is arranged at the right end of the rotating shaft 2, and the bevel gear 1 and the bevel gear 2 are meshed with each other.

[0008] As a preferred solution, the conductive mechanism includes a connecting cavity arranged below the storage tube, an electrode ring 1 is embedded in the bottom plate of the detection barrel, an electrode sheet 1 is fixedly arranged at the upper end of the connecting cavity, and the electrode sheet 1 passes through the top of the connecting cavity, a sliding contact is arranged at the bottom of the connecting cavity, the bottom end of the sliding contact is slidably matched with the top end of the electrode ring 1, a ring plate is arranged on the top outer ring of the sliding contact, and a spring is arranged on the top of the ring plate.

[0009] As a preferred solution, a motor ring 2 is arranged inside the barrel cover, an electrode sheet 2 is arranged at the lower end of the electrode ring 2, and the electrode sheet 2 is arranged in the sealing cover, and conductive plates are arranged on the inner sides of the electrode ring 1 and the electrode ring 2, and an electrode rod is arranged at the end of the conductive plate.

[0010] As a preferred solution, a base plate is provided under the shell, two fixed plates are provided at the right end of the base plate, a transmission shaft is provided between the two fixed plates, and the transmission shaft is provided at the lower end inside the shell, a rotating motor is provided on the outer side of the fixed plate on the front side of the shell, two fixed blocks are provided at the left end of the base plate, a fixing rod is provided between the fixing blocks, and the fixing rod cooperates with the fixing slot.

[0011] As a preferred solution, a plurality of card slots are arranged on the top of the shell, and a plurality of L-shaped card blocks are arranged under the shell cover, and the card blocks cooperate with the card slots.

[0012] It can be seen from the technical solution provided by the utility model above that the utility model provides a carbon nanotube conductivity detection device, which has the following beneficial effects:

[0013] 1. The detection barrel is rotated at a constant speed through the rotating mechanism to reduce the bubbles in the carbon nanotube conductive paste in the storage tube and reduce the precipitation of the conductive paste;

[0014] 2. The conductive mechanism electrode ring 1 and electrode ring 2 output a detection current to detect the conductive properties of the carbon nanotubes in the storage tube;

[0015] 3. Place the test barrel horizontally through the fixing plate so that the carbon nanotube conductive slurry can touch the electrode sheets at the upper and lower ends of the storage tube, thereby performing conductivity testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a carbon nanotube conductive performance detection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a carbon nanotube electrical conductivity detection device of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom of a storage tube of a carbon nanotube conductive performance detection device of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the top of a storage tube of a carbon nanotube conductive performance detection device of the utility model;

[0020] Figure 5 This is a partial cross-sectional structural diagram of a carbon nanotube electrical conductivity detection device of the utility model;

[0021] In the figure: 1. shell; 2. detection barrel; 3. mounting plate; 30. rotating shaft 1; 31. bevel gear 1; 32. driving motor; 33. rotating shaft 2; 34. bevel gear 2; 4. support rod; 5. fixing frame; 6. storage tube; 60. connecting cavity; 61. electrode ring 1; 62. electrode sheet 1; 63. sliding contact; 64. ring plate; 65. spring; 66. electrode ring 2; 67. electrode sheet 2; 68. conductive plate; 69. electrode rod; 7. barrel cover; 8. sealing cover; 9. shell cover; 10. rotating shaft; 11. round hole; 12. bearing; 13. rolling groove; 14. roller; 15. fixing notch; 16. bottom plate; 17. fixing plate; 18. transmission shaft; 19. rotating motor; 20. fixing block; 21. fixing rod; 22. card slot; 23. card block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figure 1-5 As shown, an embodiment of the utility model provides a carbon nanotube conductivity detection device, including a shell 1, a detection barrel 2 is arranged inside the shell 1, a mounting plate 3 is arranged at the bottom of the shell 1, a rotating mechanism is arranged below the mounting plate 3, the rotating mechanism includes a rotating shaft 1 30 fixedly arranged below the detection barrel 2, and the rotating shaft 1 30 passes through the mounting plate 3, a bevel gear 1 31 is arranged at the lower end of the rotating shaft 1 30, a driving motor 32 is arranged below the mounting plate 3, a rotating shaft 2 33 is arranged at the right end of the driving motor 32, a bevel gear 2 34 is arranged at the right end of the rotating shaft 2 33, and the bevel gear 1 31 and the bevel gear 2 34 are meshed with each other.

[0028] Among them, the driving motor 32 drives the rotating shaft 2 33, and the rotating shaft 2 33 drives the bevel gear 2 34 to rotate, thereby rotating the bevel gear 1 31, and the rotating shaft 1 30 drives the detection barrel 2 to rotate, so that the detection barrel 2 rotates at a uniform speed, thereby reducing the bubbles in the carbon nanotube conductive slurry in the storage tube 6 and reducing the precipitation of the conductive slurry.

[0029] A support rod 4 is provided in the middle of the detection barrel 2, and a plurality of regularly distributed fixing frames 5 are provided on the support rod 4. A storage tube 6 is provided inside the end of the fixing frame 5 away from the support rod, and a conductive mechanism is provided at the bottom of the storage tube 6. A barrel cover 7 is provided above the detection barrel 2, and a plurality of sealing covers 8 are provided below the barrel cover 7, and the sealing covers 8 are adapted to the storage tube 6. A rolling groove 13 is provided on the inner wall of the outer shell 1 and the outer wall of the detection barrel 2, and a plurality of rollers 14 are provided inside the rolling groove 13.

[0030] Among them, a fixing frame 5 is arranged on the support rod 4, so that when the detection barrel 2 rotates, the storage tube 6 can be fixed inside the detection barrel 2 and rotate together with the detection barrel 2, and the roller 14 is embedded in the rolling groove 13, so that the friction force on the detection barrel 2 when rotating is smaller.

[0031] An outer shell cover 9 is arranged above the barrel cover 7 , a rotating shaft 10 is arranged in the middle of the top surface of the barrel cover 7 , a circular hole 11 is arranged inside the outer shell cover 9 , a bearing 12 is arranged inside the circular hole 11 , and the bearing 12 cooperates with the rotating shaft 10 .

[0032] The rotating shaft 10 cooperates with the bearing 12 so that the barrel cover 7 can rotate together with the detection barrel 2, while the outer shell cover 9 can remain fixed.

[0033] A bottom plate 16 is provided below the housing 1, two fixing plates 17 are provided at the right end of the bottom plate 16, a transmission shaft 18 is provided between the two fixing plates 17, and the transmission shaft 18 is provided at the lower end inside the housing 1, a rotating motor 19 is provided outside the fixing plate 17 on the front side of the housing 1, two fixing blocks 20 are provided at the left end of the bottom plate 16, a fixing rod 21 is provided between the fixing blocks 20, and the fixing rod 21 cooperates with the fixing slot 15.

[0034] The rotating motor 19 can control the transmission shaft 18 to rotate, thereby turning the housing 1 from vertical to horizontal by 90 degrees, and the fixing notch of the housing cover 9 cooperates with the fixing rod 21 to limit the housing 1 from further turning downward.

[0035] The conductive mechanism includes a connecting cavity 60 arranged below the storage tube 6, an electrode ring 61 is embedded in the bottom plate of the detection barrel 2, an electrode sheet 62 is fixedly arranged on the upper end of the connecting cavity 60, and the electrode sheet 62 passes through the top of the connecting cavity 60, a sliding contact 63 is arranged at the bottom of the connecting cavity 60, the bottom end of the sliding contact 63 is slidably matched with the top of the electrode ring 61, a ring plate 64 is arranged on the top outer ring of the sliding contact 63, a spring 65 is arranged on the top of the ring plate 64, an electrode ring 66 is arranged inside the barrel cover 7, an electrode sheet 67 is arranged at the lower end of the electrode ring 66, and the electrode sheet 67 is arranged in the sealing cover 8, and a conductive plate 68 is arranged on the inner side of the electrode ring 1 61 and the electrode ring 2 66, and an electrode rod 69 is arranged at the end of the conductive plate 68.

[0036] During operation, after the storage tube 6 is inserted into the inner ring of the ring of the fixing frame 5, the lower end of the sliding contact 63 contacts the electrode ring 1 61, so that the sliding contact 63 slides upward into the interior of the connecting cavity 60, the spring 65 is compressed, and the top of the sliding contact 63 is connected with the bottom of the electrode sheet 1 62; the elastic force of the spring 65 improves the connection strength of the sliding contact 63 connecting the electrode sheet 1 62 and the electrode ring 1 61, thereby improving the accuracy of the conductive performance detection device, the electrode rod 69 is energized, and the detection current is transmitted to the electrode ring 1 61 and the electrode ring 2 66 through the conductive plate 68, so that the conductivity is detected by the electrode sheet contacting the conductive slurry.

[0037] The working principle of this embodiment is: the prepared carbon nanotube conductive slurry is evenly distributed and filled into the storage tube 6, the storage tube 6 is inserted into the inner ring of the ring of the fixing frame 5, the lower end of the sliding contact 63 contacts the electrode ring 61, so that the sliding contact 63 slides upward into the interior of the connecting cavity 60, the spring 65 is compressed, and the top of the sliding contact 63 is connected to the bottom of the electrode sheet 62. After the storage tube 6 is installed, the barrel cover 7 is covered so that the sealing cover 8 on the barrel cover 7 is aligned with the storage tube 6 for sealing. Then, the circular hole 11 of the outer shell cover 9 is aligned with the rotating shaft 10 on the barrel cover 7, and the outer shell cover 9 is pressed to make the block 23 enter the slot 22. Finally, the outer shell cover 9 is rotated so that the slot 22 completely clamps the block 23. The barrel cover 7 is subjected to downward extrusion force, so that the barrel cover 7 and the detection barrel 2 fit tightly. Then, the rotating motor 19 is started to control the transmission shaft 18 to rotate, so that the outer shell 1 is turned over from vertically turning 90 degrees to horizontally rotating, and the fixed notch of the outer shell cover 9 cooperates with the fixed rod 21 to limit the outer shell 1. Continue to flip downward, then start the drive motor 32, the drive motor 32 drives the rotating shaft 2 33, and the rotating shaft 2 33 drives the bevel gear 2 34 to rotate, so that the bevel gear 1 31 rotates, and the rotating shaft 1 30 drives the detection barrel 2 to rotate, so that the detection barrel 2 rotates at a uniform speed, so that the bubbles in the carbon nanotube conductive slurry in the storage tube 6 are reduced, and the precipitation of the conductive slurry is reduced. Through the control panel, the detection current is controlled to pass through the electrode ring 1 61 and the electrode ring 2 66 to connect the left and right ends of the carbon nanotube conductive slurry respectively, and the conductive performance of the carbon nanotube conductive slurry is detected by the changes in voltage, current and resistance.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the electrical conductivity of carbon nanotubes, characterized in that: The invention comprises a shell (1), a detection barrel (2) is arranged inside the shell (1), a mounting plate (3) is arranged at the bottom of the shell (1), a rotating mechanism is arranged below the mounting plate (3), a support rod (4) is arranged in the middle of the detection barrel (2), a plurality of regularly distributed fixing frames (5) are arranged on the support rod (4), a storage tube (6) is arranged inside the end of the fixing frame (5) away from the support rod, a conductive mechanism is arranged at the bottom of the storage tube (6), a barrel cover (7) is arranged above the detection barrel (2), and a plurality of sealing covers are arranged below the barrel cover (7). (8), and the sealing cover (8) is matched with the storage tube (6), an outer shell cover (9) is arranged above the barrel cover (7), a rotating shaft (10) is arranged in the middle of the top surface of the barrel cover (7), a circular hole (11) is arranged inside the outer shell cover (9), a bearing (12) is arranged inside the circular hole (11), and the bearing (12) cooperates with the rotating shaft (10), the inner wall of the outer shell (1) and the outer wall of the detection barrel (2) are provided with rolling grooves (13), a plurality of rollers (14) are arranged inside the rolling grooves (13), and a fixing notch (15) is arranged at the upper end of the outer shell cover (9).

2. A carbon nanotube conductivity detection device according to claim 1, characterized in that: The rotating mechanism comprises a rotating shaft 1 (30) fixedly arranged below the detection barrel (2), and the rotating shaft 1 (30) passes through the mounting plate (3), a bevel gear 1 (31) is arranged at the lower end of the rotating shaft 1 (30), a driving motor (32) is arranged below the mounting plate (3), a rotating shaft 2 (33) is arranged at the right end of the driving motor (32), a bevel gear 2 (34) is arranged at the right end of the rotating shaft 2 (33), and the bevel gear 1 (31) and the bevel gear 2 (34) are meshed with each other.

3. The carbon nanotube conductivity detection device according to claim 1, characterized in that: The conductive mechanism comprises a connecting cavity (60) arranged below the storage tube (6); an electrode ring (61) is embedded in the bottom plate of the detection barrel (2); an electrode sheet (62) is fixedly arranged at the upper end of the connecting cavity (60), and the electrode sheet (62) passes through the top of the connecting cavity (60); a sliding contact (63) is arranged at the bottom of the connecting cavity (60); the bottom end of the sliding contact (63) is slidably matched with the top end of the electrode ring (61); a ring plate (64) is arranged on the outer ring of the top of the sliding contact (63); and a spring (65) is arranged on the top of the ring plate (64).

4. A carbon nanotube conductivity detection device according to claim 3, characterized in that: The barrel cover (7) is provided with a second electrode ring (66) inside, and a second electrode sheet (67) is provided at the lower end of the second electrode ring (66). The second electrode sheet (67) is arranged in the sealing cover (8). The inner sides of the first electrode ring (61) and the second electrode ring (66) are both provided with a conductive plate (68), and the end of the conductive plate (68) is provided with an electrode rod (69).

5. The carbon nanotube conductivity detection device according to claim 1, characterized in that: A bottom plate (16) is provided below the housing (1), two fixing plates (17) are provided at the right end of the bottom plate (16), a transmission shaft (18) is provided between the two fixing plates (17), and the transmission shaft (18) is provided at the lower end inside the housing (1), a rotating motor (19) is provided outside the fixing plate (17) at the front side of the housing (1), two fixing blocks (20) are provided at the left end of the bottom plate (16), a fixing rod (21) is provided between the fixing blocks (20), and the fixing rod (21) cooperates with the fixing notch (15).

6. The device for detecting the conductivity of carbon nanotubes according to claim 1, characterized in that: A plurality of card slots (22) are arranged on the top of the shell (1), a plurality of L-shaped card blocks (23) are arranged below the shell cover (9), and the card blocks (23) cooperate with the card slots (22).

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