Device for testing pressure resistance of high-pressure-resistant conductive slurry

Abstract

The utility model relates to a conductive slurry testing device, and particularly discloses a device for testing the voltage resistance of high-voltage-resistant conductive slurry, which comprises a test board, a slurry storage tank, a voltage regulating device, a power supply and an ampere meter, and is characterized in that the voltage regulating device is arranged on the test board and comprises an insulating shell, a power supply connecting block, a resistance rod and a sliding conduction block; the slurry storage tank is installed in a slurry storage tank fixing groove in the test table, a support is arranged on one side of the slurry storage tank fixing groove, a connecting block is hinged to one side of the support, and the connecting block is located over the slurry storage tank fixing groove. The maximum working voltage which can be borne by the conductive slurry stored in the slurry storage tank can be measured.

Description

Technical Field

[0001] This utility model relates to a conductive paste testing device, specifically a device for testing the pressure resistance performance of a high-voltage conductive paste. Background Technology

[0002] Conductive paste is a conductive material formed by uniformly adding conductive powder to a binder and curing it. It is mainly used for the formation of electronic circuits, the formation of electrodes for electronic components, the lead-out of lead segments, and the formation of circuit nodes.

[0003] Depending on the proportion and uniformity of the conductive powder, the applicable voltage range of conductive paste will vary. If the voltage exceeds the limit, the dispersant in the conductive paste will oxidize, which will change the electrical conductivity of the conductive paste, increase the internal resistance, cause the temperature of the conductive paste to rise, and reduce the conductivity of the conductive paste. In severe cases, it may cause spontaneous combustion and explosion when the conductive paste is used as a battery in a motor.

[0004] To better address this issue, it is necessary to test the maximum voltage that different conductive pastes can withstand during use. This is to prevent the conductive paste from being connected to a voltage exceeding its maximum withstand limit, which could lead to an increase in the internal resistance of the conductive paste, a decrease in conductivity, and potential safety issues. Utility Model Content

[0005] This utility model aims to solve the technical problems mentioned in the background section above, and proposes the following technical solutions:

[0006] A testing device for the withstand voltage performance of a high-voltage conductive slurry includes a test bench, a slurry storage tank, a voltage regulator, a power supply, and an ammeter. The voltage regulator is mounted on the test bench, and the power supply is mounted on one side of the test bench. The voltage regulator includes an insulating shell, a power connection block, a resistance rod, and a sliding conductive block. The insulating shell is hollow. The two ends of the resistance rod are rotatably connected to the inner walls of the insulating shell. The power connection block is fixed to the inner wall of the insulating shell. A connecting ring is connected to the top of the power connection block. A bearing is provided inside the connecting ring. The outer circumference of the bearing is fixedly connected to the inner wall of the connecting ring. The inner wall of the bearing is fixedly fitted onto the outer circumference of the resistance rod. One side of the outer circumference of the resistance rod is threaded. The sliding conductive block is fitted onto the outer circumference of the resistance rod and threadedly connected to the resistance rod. A conductive block groove is provided on the top of the insulating shell.

[0007] A positive electrode post is provided at the bottom of the slurry storage tank, with one end of the positive electrode post passing through the bottom of the slurry storage tank and located inside the slurry storage tank. A sealing cover is connected to the top of the slurry storage tank, and a negative electrode post is provided on the sealing cover, with one end of the negative electrode post passing through the sealing cover and located inside the slurry storage tank.

[0008] The test bench is provided with a slurry storage tank fixing slot. A positive electrode contact plate is provided at the bottom of the slurry storage tank fixing slot. The bottom of the slurry storage tank is threadedly connected to the slurry storage tank fixing slot. A bracket is provided on one side of the slurry storage tank fixing slot. A connecting block is hinged to one side of the bracket. The connecting block is located directly above the slurry storage tank fixing slot. A negative electrode contact plate is provided in the middle of the bottom of the connecting block. The ammeter is installed on one side of the bracket.

[0009] The positive terminal of the power supply is connected to the power connection block circuit, the sliding conductive block is connected to the positive terminal contact plate circuit, and the negative terminal contact plate is connected to the ammeter circuit.

[0010] Preferably, the insulating housing is provided with a voltage indicator, which is located on one side of the conductive block groove.

[0011] Preferably, an adjustment knob is provided on the side of the insulating housing, and one end of the adjustment knob is fixedly connected to one end of the resistance rod.

[0012] Preferably, the bottom of the connecting block is provided with a groove in the middle, the bottom of the groove is provided with a spring placement groove, a spring is provided in the spring placement groove, one end of the spring is connected to the bottom of the spring placement groove, and the other end of the spring is connected to the negative electrode contact plate.

[0013] Preferably, the groove is circular, and the top of the sealing cap can be inserted into the groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting up a test bench, voltage regulator, slurry storage tank, and voltmeter, and by continuously adjusting the voltage across the slurry storage tank using the voltage regulator, the maximum working voltage that the conductive slurry stored in the slurry storage tank can withstand can be measured.

[0016] 2. By setting a voltage indicator on the insulating housing and setting an adjustment knob on the side of the insulating housing, with one end of the adjustment knob connected to the resistance rod, it is convenient for the staff to adjust the voltage when measuring the maximum working voltage.

[0017] 3. By connecting the negative electrode contact plate to the spring mechanism, when the connecting block covers the slurry storage tank, the negative electrode post will press against the negative electrode contact plate, causing the negative electrode contact plate to move upward against the spring force. This results in a tighter contact between the negative electrode post and the negative electrode contact plate, preventing poor contact problems. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0022] Figure 5 This is a schematic diagram of the slurry storage tank structure in this utility model.

[0023] In the diagram: 1. Test stand; 1-1. Slurry storage tank fixing groove; 1-2. Positive electrode contact plate; 2. Slurry storage tank; 2-1. Positive electrode post; 2-2. Sealing cover; 2-3. Negative electrode post; 3. Voltage regulating device; 3-1. Insulating shell; 3-2. Power supply connection block; 3-3. Resistance rod; 3-4. Sliding conduction block; 3-5. Conduction block groove; 4. Power supply; 5. Ammeter; 6. Connecting ring; 7. Bearing; 8. Adjustment knob; 9. Bracket; 10. Connecting block; 10-1. Negative electrode contact plate; 10-2. Groove; 10-3. Spring placement groove; 11. Voltage indicator; 12. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0026] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] Reference Figure 1-5 A test device for the withstand voltage performance of a high-voltage conductive slurry includes a test bench 1, a slurry storage tank 2, a voltage regulating device 3, a power supply 4, and an ammeter 5. The voltage regulating device 3 is installed on the test bench 1, and the power supply 4 is installed on one side of the test bench 1. The voltage regulating device 3 includes an insulating shell 3-1, a power connection block 3-2, a resistance rod 3-3, and a sliding conductive block 3-4. The insulating shell 3-1 is a hollow structure. The two ends of the resistance rod 3-3 are rotatably connected to the two sides of the inner wall of the insulating shell 3-1, respectively. The power connection block 3-2 is fixed on the inner wall of the insulating shell 3-1. A connecting ring 6 is connected to the top of the power connection block 3-2. A bearing 7 is set inside the connecting ring 6. The outer periphery of the bearing 7 is fixedly connected to the inner wall of the connecting ring 6. The inner wall of the bearing 7 is fixedly fitted onto the outer periphery of the resistance rod 3-3. One side of the outer periphery of the resistance rod 3-3 is threaded. The sliding conductive block 3-4 is fitted onto the outer periphery of the resistance rod 3-3 and threadedly connected to the resistance rod 3-3. A conductive block groove 3-5 is set on the top of the insulating shell 3-1.

[0029] A positive electrode post 2-1 is provided at the bottom of the slurry storage tank 2. One end of the positive electrode post 2-1 passes through the bottom of the slurry storage tank 2 and is located inside the slurry storage tank 2. A sealing cover 2-2 is connected to the top of the slurry storage tank 2. A negative electrode post 2-3 is provided on the sealing cover 2-2. One end of the negative electrode post 2-3 passes through the sealing cover 2-2 and is located inside the slurry storage tank 2.

[0030] Test bench 1 is equipped with a slurry storage tank fixing slot 1-1. A positive electrode contact plate 1-2 is installed at the bottom of the slurry storage tank fixing slot 1-1. The bottom of the slurry storage tank 2 is threadedly connected to the slurry storage tank fixing slot 1-1. A bracket 9 is installed on one side of the slurry storage tank fixing slot 1-1. A connecting block 10 is hinged to one side of the bracket 9. The connecting block 10 is located directly above the slurry storage tank fixing slot 1-1. A negative electrode contact plate 10-1 is installed in the middle of the bottom of the connecting block 10. An ammeter 5 is installed on one side of the bracket 9.

[0031] The positive terminal of power supply 4 is connected to power supply connection block 3-2, the sliding conductive block 3-4 is connected to positive contact plate 1-2, and the negative contact plate 10-1 is connected to ammeter 5.

[0032] Preferably, a voltage indicator 11 is provided on the insulating housing 3-1, and the voltage indicator 11 is located on one side of the conductive block groove 3-5.

[0033] Preferably, an adjustment knob 8 is provided on the side of the insulating housing 3-1, and one end of the adjustment knob 8 is fixedly connected to one end of the resistance rod 3-3.

[0034] In actual operation, S1, the staff first injects the conductive paste into the paste storage tank 2, closes the sealing cap 2-2, and then fixes the paste storage tank 2 in the paste storage tank fixing groove 1-1 on the test bench 1 by threaded connection. At this time, the positive electrode post 2-1 at the bottom of the paste storage tank 2 contacts the positive electrode contact plate 1-2 at the bottom of the paste storage tank fixing groove 1-1.

[0035] S2. Then, the connecting block 10 is placed on the slurry storage tank 2. The negative electrode contact plate 10-1 at the bottom of the connecting block 10 contacts the negative electrode post 2-3 on the sealing cover 2-2. Then, the adjustment knob 8 is rotated. The adjustment knob 8 rotates the resistance rod 3-3, causing the sliding conductive block 3-4, which is threadedly connected to the resistance rod 3-3, to move along the resistance rod 3-3 toward the connecting ring 6 until it moves to the lowest voltage position shown by the voltage indicator 11.

[0036] S3. Turn on the power, and then observe the ammeter 5 every 1 minute. When the value is stable, turn the adjustment knob 8 in the opposite direction so that the sliding conduction block 3-4 is connected to the ring 6 until it is adjusted to the voltage mark 11 showing the voltage to be measured. Then observe the ammeter 5 every 1 minute until the value is stable.

[0037] S4. Repeat the operation of S3 until the current value displayed by the ammeter is 0. This indicates that the measured voltage value is the maximum working voltage that the conductive slurry can withstand.

[0038] Example 2

[0039] Reference Figure 2-3The difference between this embodiment and the first embodiment is that a groove 10-2 is provided in the middle of the bottom of the connecting block 10, a spring placement groove 10-3 is provided at the bottom of the groove 10-2, a spring 12 is provided in the spring placement groove 10-3, one end of the spring 12 is connected to the bottom of the spring placement groove 10-3, and the other end of the spring 12 is connected to the negative electrode contact plate 10-1.

[0040] Preferably, the groove 10-2 has a circular structure, and the top of the sealing cap 2-2 can be inserted into the groove 10-2.

[0041] In this embodiment, by connecting the negative electrode contact plate 10-1 to the spring mechanism, when the connecting block 10 covers the slurry storage tank 2, the negative electrode post 2-3 will press the negative electrode contact plate 10-1, causing the negative electrode contact plate 10-1 to move upward against the elastic force of the spring 12, so that the negative electrode post 2-3 and the negative electrode contact plate 10-1 are in closer contact, thus avoiding the problem of poor contact.

Claims

1. A testing device for the withstand voltage performance of a high-voltage conductive paste, comprising a test bench (1), a paste storage tank (2), a voltage regulating device (3), a power supply (4), and an ammeter (5), characterized in that, The voltage regulating device (3) is installed on the test bench (1), and the power supply (4) is installed on one side of the test bench (1). The voltage regulating device (3) includes an insulating shell (3-1), a power connection block (3-2), a resistance rod (3-3), and a sliding conductive block (3-4). The insulating shell (3-1) is a hollow structure. The two ends of the resistance rod (3-3) are rotatably connected to the two sides of the inner wall of the insulating shell (3-1). The power connection block (3-2) is fixed on the inner wall of the insulating shell (3-1). A connecting ring (6) is connected to the top of the connecting block (3-2). A bearing (7) is provided inside the connecting ring (6). The outer periphery of the bearing (7) is fixedly connected to the inner wall of the connecting ring (6). The inner wall of the bearing (7) is fixedly fitted around the outer periphery of the resistance rod (3-3). One side of the outer periphery of the resistance rod (3-3) is threaded. The sliding conductive block (3-4) is fitted around the outer periphery of the resistance rod (3-3) and threadedly connected to the resistance rod (3-3). A conductive block groove (3-5) is provided on the top of the insulating shell (3-1). The bottom of the slurry storage tank (2) is provided with a positive electrode post (2-1), one end of which passes through the bottom of the slurry storage tank (2) and is located inside the slurry storage tank (2). The top of the slurry storage tank (2) is connected with a sealing cover (2-2), and a negative electrode post (2-3) is provided on the sealing cover (2-2). One end of the negative electrode post (2-3) passes through the sealing cover (2-2) and is located inside the slurry storage tank (2). The test bench (1) is provided with a slurry storage tank fixing groove (1-1), and a positive electrode contact plate (1-2) is provided at the bottom of the slurry storage tank fixing groove (1-1). The bottom of the slurry storage tank (2) is threadedly connected to the slurry storage tank fixing groove (1-1). A bracket (9) is provided on one side of the slurry storage tank fixing groove (1-1), and a connecting block (10) is hinged on one side of the bracket (9). The connecting block (10) is located directly above the slurry storage tank fixing groove (1-1). A negative electrode contact plate (10-1) is provided in the middle of the bottom of the connecting block (10). The ammeter (5) is installed on one side of the bracket (9). The positive terminal of the power supply (4) is connected to the power supply connection block (3-2) in a circuit, the sliding conductive block (3-4) is connected to the positive contact plate (1-2) in a circuit, and the negative contact plate (10-1) is connected to the ammeter (5) in a circuit.

2. The testing device for the withstand voltage performance of high-voltage conductive paste according to claim 1, characterized in that, A voltage indicator (11) is provided on the insulating housing (3-1), and the voltage indicator (11) is located on one side of the conductive block groove (3-5).

3. The testing device for the withstand voltage performance of a high-voltage conductive paste according to claim 1, characterized in that, An adjustment knob (8) is provided on the side of the insulating shell (3-1), and one end of the adjustment knob (8) is fixedly connected to one end of the resistance rod (3-3).

4. The testing device for the withstand voltage performance of a high-voltage conductive paste according to claim 1, characterized in that, The connecting block (10) has a groove (10-2) in the middle of its bottom. The bottom of the groove (10-2) has a spring placement groove (10-3). A spring (12) is placed in the spring placement groove (10-3). One end of the spring (12) is connected to the bottom of the spring placement groove (10-3), and the other end of the spring (12) is connected to the negative electrode contact plate (10-1).

5. The testing device for the withstand voltage performance of a high-voltage conductive paste according to claim 4, characterized in that, The groove (10-2) has a circular structure, and the top of the sealing cap (2-2) can be inserted into the groove (10-2).

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