Copper-Clad Aluminum Composite Busbar Corrosion Resistance Evaluation Test Device and Method

Abstract

The present invention relates to the technical field of corrosion resistance testing of composite busbars, and discloses a corrosion resistance evaluation testing device and method for copper-clad aluminum composite busbars, including a control machine and a container frame fixed above the control machine. The inside of the container frame is filled with a corrosion medium for soaking the copper-clad aluminum busbars, and a partition component is arranged inside the container frame for partitioning the inside of the container frame into at least two cavities. For this corrosion resistance evaluation testing device for copper-clad aluminum composite busbars, the inside of the container frame is partitioned into at least two cavities by the partition component, so as to facilitate the corrosion resistance evaluation testing work of the copper-clad aluminum composite busbars at multiple temperatures simultaneously. The copper-clad aluminum composite busbars are pushed by a pushing component, so that the positions of the copper-clad aluminum composite busbars are adjusted inside the multiple cavities partitioned by the partition component, forming an incremental temperature difference corrosion resistance detection work, and different corrosion media are set in different regions, that is, different corrosion resistance evaluation works are formed.

Description

Technical Field

[0001] The present invention relates to the technical field of corrosion resistance testing of composite busbars, and specifically to a device and method for evaluating the corrosion resistance of copper-clad aluminum composite busbars. Background Art

[0002] Copper-clad aluminum composite busbars are widely used in the field of electrical engineering due to their excellent electrical conductivity of copper and lightweight characteristics of aluminum. The copper-clad aluminum composite busbar consists of a copper layer and an aluminum core. There is a potential difference between copper and aluminum, which is prone to form galvanic corrosion. In humid or corrosive environments (such as salt spray, acid rain, etc.), the contact part between copper and aluminum will undergo electrochemical corrosion, resulting in the oxidation of the aluminum core and thus affecting the electrical conductivity.

[0003] Existing corrosion resistance evaluation test devices mainly simulate corrosion under a single environmental condition, such as salt spray test, damp heat test, or chemical reagent immersion, etc. Although these test methods can simulate the corrosion situation under specific environments, in actual applications, copper-clad aluminum composite busbars often need to maintain stable corrosion resistance under different temperature conditions. For example, during the operation of electrical equipment, the temperature may change from low-temperature startup to high-temperature operation, and most of the existing test devices cannot simultaneously meet the corrosion resistance detection requirements at different temperatures.

[0004] In addition, the corrosion mechanisms at different temperatures may vary. For example, in a low-temperature environment, the corrosion rate may slow down due to changes in the physical properties of the material surface, while in a high-temperature environment, the corrosion may accelerate and even trigger new forms of corrosion. Therefore, developing a test device that can perform corrosion resistance detection under different temperature conditions is crucial for comprehensively evaluating the performance of copper-clad aluminum composite busbars. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a device and method for evaluating the corrosion resistance of copper-clad aluminum composite busbars. The inner part of the container frame is divided into at least two cavities by a partitioning component, so as to facilitate the corrosion resistance evaluation test of copper-clad aluminum composite busbars at multiple temperatures simultaneously. The copper-clad aluminum composite busbar is pushed by a pushing component, so that the copper-clad aluminum composite busbar adjusts its position inside the multiple cavities divided by the partitioning component, forming an incremental temperature difference corrosion resistance detection work. Moreover, by setting different corrosion media in different regions, different corrosion resistance evaluation works can be formed, effectively simulating different corrosion situations of the busbar in the actual use environment, and solving the problem that the existing corrosion resistance evaluation test methods for copper-clad aluminum composite busbars generally directly place the product to be tested inside a container filled with a corrosion medium or use a salt spray method for corrosion resistance testing, and the test methods are single.

[0007] (2) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a corrosion resistance evaluation test device for copper-clad aluminum composite busbars, including a control machine and a container frame fixed above the control machine. The inside of the container frame is filled with a corrosion medium for soaking the copper-clad aluminum busbars. A partition component is arranged inside the container frame for dividing the inside of the container frame into at least two cavities.

[0009] A heater for heating the corrosion medium inside the container frame is arranged on the container frame.

[0010] A pushing component for converting the copper-clad aluminum busbars inside at least two cavities is arranged on the container frame.

[0011] A disturbing component for disturbing the corrosion medium inside the container frame is arranged on the container frame.

[0012] Preferably, the partition component includes at least one partition board connected to the inside of the container frame. A through hole is opened inside the partition board, and a sealing sleeve is fixedly connected inside the through hole. The copper-clad aluminum busbar is arranged inside the sealing sleeve in a penetrating manner.

[0013] Preferably, a U-shaped sealing rail is fixedly connected to the inside of the container frame, and the partition board is installed inside the U-shaped sealing rail in a sealed insertion manner.

[0014] A heat exchange component is arranged inside the partition board. The heater is fixed to one side of the bottom of the container frame, and the heater is used to heat the corrosion medium inside one of the cavities.

[0015] Preferably, the pushing component includes a pushing board slidably connected to the inside of the container frame and a first electric cylinder for horizontally pushing the pushing board, and the pushing board is flush with the height of the copper-clad aluminum busbar.

[0016] Preferably, a slide rail frame is arranged at the bottom of the container frame, and a sliding seat is slidably connected to the sliding end of the slide rail frame. The top of the sliding seat is fixedly connected to a driving rod. One end of the driving rod extends into the container frame through a sealing ring and is fixedly connected to the pushing board. The first electric cylinder is fixed to the bottom of the container frame, and the telescopic end of the first electric cylinder is fixedly connected to the sliding seat.

[0017] Preferably, the disturbing component includes a plurality of surge tubes fixed to the inside of the container frame. One end of each of the plurality of surge tubes is provided with an opening, and the plurality of surge tubes are respectively located in different cavities. Sealing plugs are slidably connected inside the plurality of surge tubes. The other ends of the plurality of surge tubes all extend to the outside of the container frame. A control component for telescopically driving the plurality of sealing plugs is arranged on the back of the container frame.

[0018] Preferably, the control member includes a sleeve fixed to the back surface of the container frame and a second electric cylinder. The telescopic end of the second electric cylinder is fixedly connected with a piston plate, and the piston plate is hermetically and slidably connected to the inside of the sleeve;

[0019] One end of the sleeve is fixedly communicated with a control pipe, and the control pipes are internally communicated with a plurality of surge pipes, and switching valves are installed at the output ends of the control pipes.

[0020] A testing method for a copper-clad aluminum composite busbar corrosion resistance evaluation testing device includes the following steps:

[0021] S1. Select a copper-clad aluminum composite busbar sample, ensure that the surface of the sample is flat, and mark the number;

[0022] S2. Insert the copper-clad aluminum composite busbar sample into the partitioning component. The partitioning component clamps the copper-clad aluminum composite busbar sample and divides the copper-clad aluminum composite busbar sample into at least two parts. Then, install the assembled partitioning component in the container frame and inject a corrosion medium for testing;

[0023] Among them, the corrosion medium inside the container frame is single or multiple, and multiple corrosion media are separated by the partitioning component;

[0024] S3. Heat the corrosion medium inside one of the cavities by a heater or heat the corrosion media inside the two cavities at different temperatures, so as to simultaneously perform the corrosion resistance evaluation testing work on the copper-clad aluminum composite busbar sample at different temperatures;

[0025] S4. After the copper-clad aluminum composite busbar sample is soaked in S3 for a period of time, when the copper-clad aluminum composite busbar sample is pushed by the pushing component, the soaked copper-clad aluminum composite busbar sample in the low-temperature area moves to the high-temperature area, forming a corrosion resistance test work with different temperature differences;

[0026] The pushing methods of the pushing component include uniform pushing and instantaneous pushing, and the calculation formula of the uniform pushing speed is as follows:

[0027]

[0028] Among them, represents the uniform pushing speed; represents the total distance of the copper-clad aluminum composite busbar sample being pushed; represents the total time of the copper-clad aluminum composite busbar sample being pushed.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the present invention provides a copper-clad aluminum composite busbar corrosion resistance evaluation testing device and method, which have the following beneficial effects:

[0031] 1. The present invention divides the interior of the container frame into at least two cavities through a partitioning component, facilitating the corrosion resistance evaluation tests of the copper-clad aluminum composite busbar at multiple temperatures simultaneously, improving the efficiency of corrosion resistance detection. The pushing component is used to push the copper-clad aluminum composite busbar, enabling the adjustment of the position of the copper-clad aluminum composite busbar within the multiple cavities separated by the partitioning component. This not only forms an incremental temperature difference corrosion resistance detection work, but also forms different corrosion resistance evaluation works by setting different corrosion media in different regions, effectively simulating the corrosion conditions of the busbar in different ways in the actual use environment.

[0032] 2. When the internal capacity of the surge tube is greater than or equal to the capacity of the corrosion medium at the liquid level height between the immersion and non-immersion of the copper-clad aluminum busbar in the cavity, when the control member drives the sealing plug to the end, the corrosion medium inside the cavity will enter the surge tube, causing the liquid level of the corrosion medium in this area to drop, and the copper-clad aluminum composite busbar will be removed from the corrosion medium. On the contrary, when the control member fully expands the sealing plug, the corrosion medium inside the surge tube will be completely discharged into the cavity, resulting in an increase in the liquid level of the corrosion medium. In this way, the intermittent immersion corrosion resistance evaluation work of the copper-clad aluminum composite busbar can be satisfied.

[0033] 3. Through the setting of two heat exchange plates in the heat exchange member, it is used to exchange the temperature of the corrosion media on both sides of the partition plate. The two heat exchange plates are in contact connection with two groups of heat exchange fins. When the contact area of the two groups of heat exchange fins is small, the heat exchange efficiency will be reduced. On the contrary, when the contact area of the two groups of heat exchange fins is large, the heat exchange efficiency will be improved, facilitating the operator to set the temperature of the corrosion media in different regions according to the required temperature difference during actual detection, further improving the diversity of corrosion resistance evaluation and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the device for evaluating the corrosion resistance of the copper-clad aluminum composite busbar of the present invention;

[0035] Figure 2 is of the present invention Figure 1 is a rear view of the structure of the device for evaluating the corrosion resistance of the copper-clad aluminum composite busbar in the present invention;

[0036] Figure 3 is of the present invention Figure 1 is a schematic structural diagram of the container frame in the present invention;

[0037] Figure 4 is of the present invention Figure 3 is a bottom view of the structure of the container frame in the present invention;

[0038] Figure 5 is of the present invention Figure 3Schematic structural diagram of the separation component;

[0039] Figure 6 For the present invention Figure 3 Schematic structural diagram of the driving component in the present invention;

[0040] Figure 7 For the present invention Figure 2 Schematic structural diagram of the disturbance component in the present invention;

[0041] Figure 8 For the present invention Figure 7 Partial cross-sectional view of the disturbance component in the present invention;

[0042] Figure 9 For the present invention Figure 5 Schematic structural diagram of the heat exchange member in the present invention;

[0043] Figure 10 For the present invention Figure 9 Cross-sectional side view of the sealing frame in the present invention;

[0044] Figure 11 For the present invention Figure 9 Side view of the heat exchange plate in the present invention.

[0045] In the figure: 1, control machine; 2, container frame; 3, copper-clad aluminum busbar;

[0046] 4, separation component; 41, separation plate; 42, sealing sleeve; 43, U-shaped sealing rail;

[0047] 44, heat exchange member; 441, sealing frame; 442, heat exchange plate; 443, heat exchange fins; 444, T-shaped moving frame; 445, hinge frame; 446, operating rod;

[0048] 5, heater;

[0049] 6, pushing component; 61, pushing plate; 62, first electric cylinder; 63, slide rail frame; 64, sliding seat; 65, driving rod;

[0050] 7, disturbance component; 71, surging pipe; 72, sealing plug; 73, switching valve; 74, sleeve; 75, second electric cylinder; 76, piston plate; 77, control pipe. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] Embodiment 1:

[0053] Refer to the appendix Figures 1 to 11 , a corrosion resistance evaluation test device for copper-clad aluminum composite busbars, including a control machine 1 and a container frame 2 fixed above the control machine 1. The inside of the container frame 2 is filled with a corrosion medium for soaking the copper-clad aluminum busbar 3. The top of the container frame 2 is provided with a cover plate, and the control machine 1 is provided with a control panel. A drain valve is installed at the bottom of the container frame 2. A partition component 4 for dividing the inside of the container frame 2 into at least two cavities is arranged inside the container frame 2;

[0054] The corrosion medium is contained in the container frame 2, and the copper-clad aluminum composite busbar to be evaluated and detected is placed in the container frame 2 for corrosion. Finally, through electrochemical data analysis, such as corrosion potential and impedance modulus value, the corrosion resistance performance is evaluated, the corrosion rate is calculated according to the ASTM G31-21 standard, and the corrosion morphology of the sample surface is observed using an optical microscope or a scanning electron microscope SEM.

[0055] A heater 5 for heating the corrosion medium inside the container frame 2 is arranged on the container frame 2;

[0056] The heater 5 adopts a heating device in the prior art and is connected to the control system built in the control machine 1 for heating the corrosion medium inside the container frame 2, so that the copper-clad aluminum busbar 3 can carry out corrosion detection work at different temperatures;

[0057] A pushing component 6 for converting the copper-clad aluminum busbar 3 inside at least two cavities is arranged on the container frame 2;

[0058] Through the setting of the pushing component 6, it is used to push the copper-clad aluminum composite busbar, so that the copper-clad aluminum composite busbar can adjust its position inside the multiple cavities separated by the partition component 4, thereby forming an incremental temperature corrosion resistance test work;

[0059] Through the pushing of the copper-clad aluminum composite busbar, the copper-clad aluminum composite busbar can move in the corrosion medium with different temperature differences, forming an incremental temperature difference corrosion resistance detection work; by setting different corrosion media in different regions, different corrosion resistance evaluation works can be formed, effectively simulating different corrosion situations of the busbar in the actual use environment;

[0060] A disturbing component 7 for disturbing the corrosion medium inside the container frame 2 is arranged on the container frame 2;

[0061] Through the setting of the disturbing component 7, it is used to disturb the corrosion medium inside the container frame 2 to ensure the uniformity of the corrosion medium and prevent the problem that the poor uniformity of the corrosion medium affects the accuracy of its corrosion evaluation from decreasing.

[0062] Refer to the appendix Figure 5The partition assembly 4 includes at least one partition plate 41 connected to the inside of the container frame 2, a through hole is opened inside the partition plate 41, and a sealing sleeve 42 is fixedly connected inside the through hole, and the copper-clad aluminum busbar 3 is installed inside the sealing sleeve 42 by a through-hole manner;

[0063] By providing a sealing sleeve 42 inside the partition plate 41, not only the stability of the copper-clad aluminum busbar 3 inserted inside can be ensured, but also the sealing between the two sides of the partition plate 41 can be ensured to prevent the corrosive medium on both sides of the partition plate 41 from causing interference;

[0064] The sealing sleeve 42 is made of corrosion-resistant nitrile rubber and has good sealing and corrosion resistance. It should be noted here that all components in this article that need to directly contact the corrosive medium are made of corrosion-resistant materials to ensure safety during the test, and the copper-clad aluminum composite busbar referenced is a composite busbar.

[0065] Refer to the attached Figures 3 to 5 , a U-shaped sealing rail 43 is fixedly connected to the interior of the container frame 2, and the partition plate 41 is installed inside the U-shaped sealing rail 43 in a sealed insertion manner;

[0066] The U-shaped sealing rail 43 is provided to not only facilitate the sealing installation of the partition plate 41 inside the container frame 2 to form a regional separation work, but also facilitate the removal of the partition plate 41 to provide convenience for subsequent cleaning or replacement;

[0067] A heat exchanger 44 is provided inside the partition plate 41, and a heater 5 is fixed to one side of the bottom of the container frame 2, and the heater 5 is used to heat the corrosive medium inside one of the cavities;

[0068] The heater 5 is fixed to one side of the bottom of the container frame 2 and is used to heat the corrosive medium in one of the cavities, so that the corrosive medium on both sides of the partition plate 41 has different temperature differences, thereby forming corrosion resistance detection work at different temperatures;

[0069] Through the setting of the heat exchange element 44, the temperature of the corrosive medium on both sides of the partition plate 41 is subjected to heat exchange treatment, so that the temperature of this area gradually heats the corrosive medium in other areas where the heater 5 is not installed, so that the temperatures of several areas decrease in a step-by-step manner, forming a multi-level temperature segmented corrosion resistance evaluation work. There is no need to set up a separate heating mechanism for heating, and the temperature of the high-temperature area corrosion resistance evaluation detection area is fully utilized, thereby improving the energy saving and environmental protection of the equipment.

[0070] Refer to the attached Figure 3 , Figure 4 and Figure 6, the pushing component 6 includes a pushing plate 61 slidably connected inside the container frame 2 and a first electric cylinder 62 for horizontally pushing the pushing plate 61, and the pushing plate 61 is flush with the copper-clad aluminum busbar 3 in height;

[0071] The first electric cylinder 62 is connected to the control system built in the controller 1 and is used to drive the pushing plate 61 to move along the position of the copper-clad aluminum composite busbar to form the pushing work of the copper-clad aluminum composite busbar, and the telescopic length and speed of the first electric cylinder 62 can be adjusted according to the actual test situation;

[0072] Through the driving of the pushing plate 61 by the first electric cylinder 62, the pushing plate 61 pushes the copper-clad aluminum composite busbar. Through the pushing of the copper-clad aluminum composite busbar, the copper-clad aluminum composite busbar can move in the corrosive medium with different temperature differences to form an incremental temperature difference corrosion resistance detection work;

[0073] Moreover, by setting different corrosive media in different areas, different corrosion resistance evaluation works can be formed, effectively simulating the corrosion conditions of the busbar in different ways in the actual use environment.

[0074] Refer to the appendix Figure 6 , a slide rail frame 63 is provided at the bottom of the container frame 2, and a sliding seat 64 is slidably connected to the sliding end of the slide rail frame 63. The top of the sliding seat 64 is fixedly connected with a driving rod 65. One end of the driving rod 65 extends into the container frame 2 through a sealing ring and is fixedly connected with the pushing plate 61. The first electric cylinder 62 is fixed to the bottom of the container frame 2, and the telescopic end of the first electric cylinder 62 is fixedly connected with the sliding seat 64.

[0075] Through the setting of the slide rail frame 63 and the sliding seat 64, it is used to improve the accuracy and stability during the pushing process. By driving the sliding seat 64 to move horizontally by the first electric cylinder 62, the pushing plate 61 can be driven to move through the driving rod 65, and then the copper-clad aluminum composite busbar can be pushed to form an incremental detection work.

[0076] Refer to the appendix Figures 1 to 11 , a test method for the copper-clad aluminum composite busbar corrosion resistance evaluation test device includes the following steps:

[0077] S1. Select a copper-clad aluminum composite busbar sample, ensure that the surface of the sample is flat, and mark the number;

[0078] S2. Insert the copper-clad aluminum composite busbar sample into the separating component 4. The separating component 4 clamps the copper-clad aluminum composite busbar sample and divides the copper-clad aluminum composite busbar sample into at least two parts. Then, install the assembled separating component 4 in the container frame 2 and inject the corrosive medium for testing;

[0079] Among them, the corrosive medium inside the container frame 2 is single or multiple, and multiple corrosive media are separated by the separating component 4;

[0080] S3. By heating the corrosive medium inside one of the cavities with the heater 5 or heating the corrosive media inside the two cavities at different temperatures, the corrosion resistance evaluation test of the copper-clad aluminum composite busbar sample can be carried out at different temperatures simultaneously;

[0081] S4. After the copper-clad aluminum composite busbar sample in S3 is soaked for a period of time, specifically: 12 - 24h, when the copper-clad aluminum composite busbar sample is pushed by the pushing component 6, the soaked copper-clad aluminum composite busbar sample in the low-temperature area moves to the high-temperature area, forming a corrosion resistance test with different temperature differences;

[0082] The pushing methods of the pushing component 6 include uniform pushing and instantaneous pushing, and the calculation formula of the uniform pushing speed is as follows:

[0083]

[0084] Among them, represents the uniform pushing speed; represents the total distance that the copper-clad aluminum composite busbar sample is pushed; represents the total time that the copper-clad aluminum composite busbar sample is pushed.

[0085] Embodiment 2: Different from Embodiment 1;

[0086] Refer to Appendix Figure 7 and Figure 8 , the disturbance component 7 includes a number of surge tubes 71 fixed inside the container frame 2, and one end of each of the number of surge tubes 71 is provided with an opening, and the number of surge tubes 71 are respectively located in different cavities. A sealing plug 72 is slidably connected inside each of the number of surge tubes 71, and the other end of each of the number of surge tubes 71 extends to the outside of the container frame 2. A control member for driving the telescopic movement of each of the number of sealing plugs 72 is provided on the back surface of the container frame 2;

[0087] By the telescopic movement of the sealing plug 72 inside the surge tube 71, the pumping and discharging treatment of the corrosive medium inside the container frame 2 can be carried out. Through the suction and discharge of the corrosive medium, the corrosive medium inside the container frame 2 can be disturbed to ensure the uniformity of the corrosive medium and prevent the problem that the poor uniformity of the corrosive medium affects the accuracy of its corrosion evaluation from decreasing.

[0088] The control member includes a sleeve 74 fixed on the back surface of the container frame 2 and a second electric cylinder 75. The telescopic end of the second electric cylinder 75 is fixedly connected with a piston plate 76, and the piston plate 76 is sealingly slidably connected inside the sleeve 74;

[0089] The second electric cylinder 75 is connected to the control system built in the control machine 1 and is used to drive the piston plate 76 to expand and contract. The expansion and contraction of the piston plate 76 can drive a number of sealing plugs 72 to move through air pressure, forming a disturbance operation of the corrosive medium, increasing the uniformity of the corrosive medium. Moreover, the length of the expansion and contraction of the second electric cylinder 75 can be controlled by the control machine 1, so as to change the amplitude of the disturbance by changing the length of the expansion and contraction of the sealing plug 72;

[0090] One end of the sleeve 74 is fixedly communicated with a control pipe 77. The control pipes 77 are all internally communicated with a number of surge pipes 71, and switching valves 73 are installed at the output ends of the control pipes 77;

[0091] Through the setting of the control pipe 77, it is used to transmit the pneumatic pressure inside the sleeve 74 to a number of surge pipes 71, so that the sealing plugs 72 inside the surge pipes 71 expand and contract, forming a pumping and discharging operation of the corrosive medium. Furthermore, the corrosive medium in this area can be disturbed to ensure the uniformity of the corrosive medium and increase the accuracy of the test;

[0092] Through the setting of the switching valve 73, it is used to control the control of the control pipe 77, so as to facilitate the disturbance of the corrosive medium in different areas by the disturbance component 7 alone, and facilitate the disturbance component 7 to perform disturbance operations with different intensities on the corrosive medium in multiple areas, further improving the comprehensiveness of the disturbance.

[0093] Embodiment 3: Different from Embodiment 2;

[0094] Refer to the appendix Figure 7 and Figure 8 , the internal capacity of the surge pipe 71 is greater than or equal to the capacity of the corrosive medium at the liquid level height between the submerged and unsubmerged copper-clad aluminum busbars 3 in the cavity;

[0095] When the internal capacity of the surge pipe 71 is greater than or equal to the capacity of the corrosive medium at the liquid level height between the submerged and unsubmerged copper-clad aluminum busbars 3 in the cavity, when the control member drives the sealing plug 72 to the end, the corrosive medium inside the cavity will enter the inside of the surge pipe 71, causing the liquid level of the corrosive medium in this area to drop, so that the copper-clad aluminum composite busbar is removed from the corrosive medium;

[0096] On the contrary, when the control member fully expands the sealing plug 72, the corrosive medium inside the surge pipe 71 will be completely discharged into the cavity, forming an increase in the liquid level of the corrosive medium. In this way, the intermittent immersion corrosion resistance evaluation work of the copper-clad aluminum composite busbar can be satisfied.

[0097] Embodiment 4: Different from Embodiment 1;

[0098] Refer to the appendix Figures 9 to 11, the partition plate 41 is made of heat-insulating material. The heat exchanger 44 includes a sealing frame 441 fixed inside the partition plate 41. Two heat exchange plates 442 are slidably connected to the inside of the sealing frame 441 symmetrically. A group of heat exchange fins 443 are fixedly connected to the inner sides of the two heat exchange plates 442, and the two groups of heat exchange fins 443 are connected in a cross-contact manner. A T-shaped moving frame 444 is slidably connected to the inside of the sealing frame 441 vertically. Inclined hinge frames 445 are hinged between the two sides of the T-shaped moving frame 444 and the two heat exchange plates 442. An operating rod 446 for controlling the up and down movement of the T-shaped moving frame 444 is slidably connected to the top of the partition plate 41;

[0099] Through the arrangement of the two heat exchange plates 442, the temperature of the corrosive media on both sides of the partition plate 41 is heat-exchanged. The two heat exchange plates 442 are connected in contact with two groups of heat exchange fins 443. When the contact area of the two groups of heat exchange fins 443 is small, the heat exchange efficiency will be reduced. On the contrary, when the contact area of the two groups of heat exchange fins 443 is large, the heat exchange efficiency will be improved. It is convenient for the operator to set the temperature of the corrosive media in different areas according to the temperature difference required during actual detection, further improving the diversity of corrosion resistance evaluation and detection;

[0100] By manually operating the operating rod 446 up and down by the operator, the T-shaped moving frame 444 can be driven to move up and down. The up and down movement of the T-shaped moving frame 444 can drive the group of hinge frames 445 to move in a fan shape, and then the two heat exchange plates 442 can be driven to move relative to each other or away from each other, indirectly realizing the adjustment of the contact area between the two groups of heat exchange fins 443.

[0101] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0102] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper-clad aluminum composite busbar corrosion resistance evaluation and testing device, comprising a control machine (1) and a container frame (2) fixed above the control machine (1), wherein the container frame (2) is filled with a corrosive medium for immersing the copper-clad aluminum busbar (3), and wherein: A partition component (4) is provided inside the container frame (2) for partitioning the interior of the container frame (2) into at least two chambers; The container frame (2) is provided with a heater (5) for heating the corrosive medium inside the container frame (2); The container frame (2) is provided with a pushing assembly (6) for switching the copper-clad aluminum busbar (3) within at least two cavities; The container frame (2) is provided with a disturbance component (7) for disturbing the corrosive medium inside the container frame (2).

2. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 1, characterized in that: The partition assembly (4) comprises at least one partition plate (41) connected to the interior of the container frame (2); a through hole is provided inside the partition plate (41); a sealing sleeve (42) is fixedly connected to the interior of the through hole; and the copper-clad aluminum busbar (3) is installed inside the sealing sleeve (42) in a through-hole manner.

3. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 2, characterized in that: A U-shaped sealing rail (43) is fixedly connected to the interior of the container frame (2), and the partition plate (41) is installed inside the U-shaped sealing rail (43) in a sealed insertion manner; A heat exchange component (44) is provided inside the partition plate (41), and the heater (5) is fixed to one side of the bottom of the container frame (2), and the heater (5) is used to heat the corrosive medium inside one of the cavities.

4. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 1, characterized in that: The pushing assembly (6) comprises a pushing plate (61) slidably connected to the interior of the container frame (2) and a first electric cylinder (62) for horizontally pushing the pushing plate (61), and the pushing plate (61) is flush with the copper-clad aluminum busbar (3).

5. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 4, characterized in that: A slide rail frame (63) is provided at the bottom of the container frame (2), and a sliding end of the slide rail frame (63) is slidably connected to a sliding seat (64), and a driving rod (65) is fixedly connected to the top of the sliding seat (64), one end of the driving rod (65) extends to the inside of the container frame (2) through a sealing ring and is fixedly connected to the push plate (61), the first electric cylinder (62) is fixed to the bottom of the container frame (2), and the telescopic end of the first electric cylinder (62) is fixedly connected to the sliding seat (64).

6. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 1, characterized in that: The disturbance assembly (7) comprises a plurality of surge tubes (71) fixed inside the container frame (2), one end of each of the plurality of surge tubes (71) being provided with an opening, and each of the plurality of surge tubes (71) being located in different cavities, each of the plurality of surge tubes (71) being slidably connected to a sealing plug (72) inside, and the other ends of each of the plurality of surge tubes (71) extending to the outside of the container frame (2), and a control component for driving the plurality of sealing plugs (72) to extend and retract is provided on the back of the container frame (2).

7. The copper-clad aluminum composite busbar corrosion resistance evaluation test device according to claim 6, characterized in that: The control component comprises a sleeve (74) fixed to the back side of the container frame (2) and a second electric cylinder (75); the telescopic end of the second electric cylinder (75) is fixedly connected to a piston plate (76), and the piston plate (76) is sealingly slidably connected to the interior of the sleeve (74); One end of the sleeve (74) is fixedly connected to a control tube (77), the control tubes (77) are connected to the inside of a plurality of surge tubes (71), and the output ends of the control tubes (77) are each installed with a switch valve (73).

8. The testing method of the copper-clad aluminum composite busbar corrosion resistance evaluation test device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Select a copper-clad aluminum composite busbar sample, ensure that the sample surface is flat, and mark the number; S2, inserting the copper-clad aluminum composite busbar sample into the partition assembly (4), clamping the copper-clad aluminum composite busbar sample by the partition assembly (4) and dividing the copper-clad aluminum composite busbar sample into at least two parts, then placing the assembled partition assembly (4) in the container frame (2), and injecting a corrosive medium for testing; The corrosive medium inside the container frame (2) is single or multiple, and the multiple corrosive media are separated by a separation component (4); S3. The corrosive medium in one of the cavities is heated by the heater (5), or the corrosive medium in the two cavities is heated at different temperatures, so that the corrosion resistance evaluation test of the copper-clad aluminum composite busbar sample at different temperatures can be performed simultaneously; S4, after the copper-clad aluminum composite busbar sample in S3 is soaked for a period of time, the copper-clad aluminum composite busbar sample is pushed by the pushing component (6), so that the soaked copper-clad aluminum composite busbar sample in the low temperature area moves to the high temperature area, forming a corrosion resistance test with different temperature differences; The pushing modes of the pushing component (6) include uniform pushing and instantaneous pushing, and the calculation formula of the uniform pushing speed is as follows: in, represents uniform pushing speed; Indicates the total distance pushed by the copper-clad aluminum composite busbar sample; Indicates the total time the copper-clad aluminum composite busbar sample is pushed.

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