CN110703053A - Dropping device and leakage tracking testing machine adopting same - Google Patents
Dropping device and leakage tracking testing machine adopting same Download PDFInfo
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- CN110703053A CN110703053A CN201911013587.9A CN201911013587A CN110703053A CN 110703053 A CN110703053 A CN 110703053A CN 201911013587 A CN201911013587 A CN 201911013587A CN 110703053 A CN110703053 A CN 110703053A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention provides a dropping device and a tracking tester adopting the same, and relates to the technical field of detection. The dropping device comprises a bracket, and a transfusion component and a measuring component which are arranged on the bracket. The infusion assembly is used for delivering electrolyte to the measuring assembly; the measuring assembly is arranged on the support and used for receiving the electrolyte delivered by the infusion assembly, the measuring assembly is configured to be capable of measuring whether the volume weight of the electrolyte delivered to the measuring assembly by the infusion assembly reaches a preset value or not in real time, when the measuring assembly measures that the volume weight of the electrolyte reaches the preset value, the infusion assembly stops delivering the electrolyte, and the measuring assembly releases the electrolyte onto a test platform of the tracking tester. The dropping device provided by the invention can accurately control the volume and weight of the electrolyte dropped on the test platform, thereby improving the test precision of the tracking test machine.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a liquid dropping device and a tracking tester adopting the same.
Background
The process of gradually forming a conductive path on the surface of the solid insulating material under the combined action of an electric field and an electrolyte is called tracking. And the ability of the surface of the insulating material to resist tracking is referred to as tracking resistance. However, the dripping amount of the existing leakage tracking testing machine is controlled by controlling the time of the electromagnetic valve, so that the inconsistency of the dripping amount every time is easily caused, the uniformity of the dripping cannot be controlled, and the testing precision of the leakage tracking testing machine is finally reduced.
Disclosure of Invention
The invention aims to provide a liquid dropping device and a tracking tester adopting the same, which can accurately control the volume weight of electrolyte dropped on a test platform, thereby improving the test precision of the tracking tester.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a dropping device comprising:
a support;
the infusion assembly is arranged on the bracket and used for conveying electrolyte;
the measuring assembly is arranged on the support and used for receiving the electrolyte delivered by the infusion assembly, the measuring assembly is configured to be capable of measuring whether the volume weight of the electrolyte delivered to the measuring assembly by the infusion assembly reaches a preset value or not in real time, when the measuring assembly measures that the volume weight of the electrolyte reaches the preset value, the infusion assembly stops delivering the electrolyte, and the measuring assembly releases the electrolyte onto a test platform of the tracking tester.
Preferably, the measuring assembly comprises:
the measuring cup is arranged on the bracket, a liquid inlet is formed in the measuring cup and is communicated with the infusion assembly, the infusion assembly conveys the electrolyte into the measuring cup through the liquid inlet, a liquid outlet valve is arranged at the bottom of the measuring cup, and the electrolyte in the measuring cup is released onto the test platform through the liquid outlet valve;
the resistance film is applied to the inner side wall of the measuring cup;
and one end of the power supply is arranged at the bottom end of the measuring cup and can be in contact with the electrolyte, and the other end of the power supply is electrically connected with the top of the resistance film.
Preferably, the resistive film is a pure silver film.
Preferably, the lower part of the measuring cup is in the shape of an inverted circular truncated cone.
Preferably, the infusion set comprises:
the liquid storage cylinder is used for storing the electrolyte and comprises a first end and a second end opposite to the first end, and the first end is communicated with the liquid inlet;
the pushing mechanism is configured to push the electrolyte in the liquid storage cylinder to enter the measuring cup through the liquid inlet.
Preferably, the propulsion mechanism comprises:
the driving piece is arranged on the bracket;
the piston is arranged in the liquid storage cylinder and is connected with the liquid storage cylinder in an interference fit mode, and the driving piece can drive the piston to slide from the second end to the first end.
Preferably, the drive member is an electric cylinder.
Preferably, the electrolyte supply device further comprises a liquid supply assembly configured to supply the electrolyte to the reservoir.
Preferably, the liquid supply assembly comprises:
the liquid storage tank is used for storing the electrolyte;
the liquid supply pump is connected with the liquid storage tank and used for pumping the electrolyte;
and one end of the first liquid feeding pipe is connected with the liquid supply pump, and the other end of the first liquid feeding pipe is communicated with the liquid storage barrel.
According to another aspect of the invention, the tracking tester comprises the dropping device.
The invention has the beneficial effects that:
1. the invention provides a liquid dropping device which comprises a measuring assembly, wherein the measuring assembly comprises a measuring cup, a resistance film is arranged in the measuring cup, and a liquid outlet valve is arranged at the bottom of the measuring cup. The electrolyte rises to different positions of the resistance film in the measuring cup to form different resistance values serving as signals, and the liquid outlet valve is controlled to be opened, so that the electrolyte amount dropped from the measuring cup at each time is consistent, and the testing precision of the tracking testing machine is improved.
2. The invention provides a liquid dropping device which comprises a liquid infusion assembly, wherein the liquid infusion assembly comprises a driving piece, a liquid storage barrel and a piston arranged in the liquid storage barrel. Electrolyte in the liquid storage cylinder is extruded through the driving piece driving piston, so that the electrolyte enters the measuring cup, and the uniform control on the liquid dropping frequency is realized through controlling the action interval of the driving piece.
3. The invention provides a liquid dropping device which comprises a liquid supply assembly, wherein the liquid supply assembly comprises a liquid storage tank, a liquid supply pump and a first liquid supply pipe. The liquid feed pump sends the electrolyte in the liquid storage tank into the liquid storage barrel through the first liquid feeding pipe, and automatic liquid supplement of the liquid storage barrel is achieved.
Drawings
FIG. 1 is a schematic diagram of a dropping device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a measuring assembly of the dropping device according to the embodiment of the present invention.
In the figure:
1. a support; 11 a base; 12. a column; 13. a cross bar;
2. a fluid delivery assembly; 21. a drive member; 22. a piston; 23. a liquid storage cylinder; 24. a second liquid sending pipe; 25. a liquid inlet valve;
3. a measurement assembly; 31. a measuring cup; 32. a resistive film; 33. a liquid outlet valve; 34. a liquid inlet;
4. a liquid supply assembly; 41. a liquid storage tank; 42. a liquid supply pump; 43. a first liquid sending pipe; 44. and a liquid supply valve.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Referring to fig. 1, the present invention provides a dropping device, which comprises a support 1, an infusion set 2 and a measuring set 3. The transfusion component 2 is arranged on the bracket 1 and is used for conveying electrolyte; measuring component 3 installs on support 1, measuring component 3 is used for receiving the electrolyte that infusion set 2 carried, and measuring component 3 can measure in real time whether volume weight of the electrolyte that infusion set 2 carried to measuring component 3 reaches the default, and when measuring component 3 measured the volume weight of electrolyte and reached the default, infusion set 2 stopped carrying electrolyte to, measuring component 3 releases electrolyte to the test platform of tracking test machine. The volume weight of the electrolyte dropped onto the test platform is measured through the measuring component 3, and the problem that the dropping liquid amount of the existing leakage tracking test machine is uneven can be effectively solved.
Specifically, referring to fig. 1 and 2, the measuring unit 3 includes a measuring cup 31, a resistive film 32, and a power supply. Measuring cup 31 is installed on support 1, has seted up inlet 34 on the measuring cup 31, and inlet 34 communicates with infusion subassembly 2, and infusion subassembly 2 carries electrolyte to measuring cup 31 through inlet 34 in, and the bottom of measuring cup 31 is provided with out liquid valve 33, goes out liquid valve 33 and infusion subassembly 2 electric connection, and the electrolyte in measuring cup 31 passes through out liquid valve 33 and releases to test platform on. The resistive film 32 is applied to the inner side wall of the measuring cup 31. One end of the power supply is arranged at the bottom end of the measuring cup 31 and can be contacted with the electrolyte in the measuring cup 31, and the other end of the power supply is electrically connected with the top of the resistance film 32.
The infusion set 2 comprises a reservoir 23 and an advancing mechanism. The liquid storage cylinder 23 is used for storing electrolyte, the liquid storage cylinder 23 comprises a first end and a second end opposite to the first end, and the first end is communicated with the liquid inlet 34; the pushing mechanism is used for pushing the electrolyte in the liquid storage cylinder 23 to enter the measuring cup 31 through the liquid inlet 34. The propulsion mechanism is electrically connected to the power supply and the resistive film 32.
The working principle of the measuring assembly 3 is as follows:
when the infusion set 2 injects electrolyte into the vector cup 31, the electrolyte rises from the bottom of the measurement cup 31 and contacts with the positions with different heights of the resistance film 32, and at this time, the power supply, the electrolyte in the measurement cup 31, the resistance film 32 and the propelling mechanism form a circuit loop. The controller in the propelling mechanism is internally provided with a preset value of the resistance in the circuit loop, when the electrolyte rises from the bottom of the measuring cup 31, the electrolyte is in contact with the resistance film 32 at different height positions, so that the resistance value in the circuit loop is always changed, the voltage of the power supply is constant, the current value in the circuit loop is measured by the current sensor, and the real-time resistance value in the circuit loop is obtained by the controller according to ohm's law. The controller compares the real-time resistance value in the circuit loop with a preset value, when the resistance value reaches the preset value, the propelling mechanism stops acting under the control of the controller, the electrolyte stops entering the measuring cup 31 from the liquid storage cylinder 23, meanwhile, the controller sends an opening signal to the liquid outlet valve 33 at the bottom of the measuring cup 31, so that the liquid outlet valve 33 is opened, and optionally, the liquid outlet valve 33 is an electromagnetic valve.
To resist corrosion by the electrolyte, it is preferable to provide the resistive film 32 as a pure silver film. Meanwhile, the pure silver film has the advantage of high conductivity, so that a circuit loop formed by the power supply, the electrolyte in the measuring cup 31, the resistance film 32 and the propelling mechanism is more sensitive.
Preferably, the lower part of the measuring cup 31 is in the shape of an inverted circular truncated cone, so that when the liquid outlet valve 33 is opened, all the electrolyte in the measuring cup 31 can drop onto the test platform, thereby further improving the test precision.
Preferably, in order to prevent the electrolyte in the liquid storage cylinder 23 from flowing into the measuring cup 31 when the pushing mechanism stops operating, the liquid inlet valve 25 is required to be arranged between the liquid storage cylinder 23 and the liquid inlet 34, and specifically, the second liquid sending pipe 24 is also arranged between the liquid inlet valve 25 and the liquid storage cylinder 23. The electrolyte in the liquid storage cylinder 23 flows through the liquid inlet valve 25 via the second liquid feeding pipe 24 and then enters the measuring cup 31, and when the pushing mechanism stops operating, the controller of the pushing mechanism simultaneously sends a closing signal to the liquid inlet valve 25, so that the liquid inlet valve 25 is closed.
Preferably, the propulsion mechanism comprises a driver 21 and a piston 22. The driving part 21 is arranged on the bracket 1; the piston 22 is installed in the liquid storage cylinder 23 and connected with the liquid storage cylinder 23 in an interference fit manner, and the driving member 21 is used for driving the piston 22 to slide from the second end to the first end of the liquid storage cylinder 23. So that the electrolyte in the reservoir 23 can enter the measuring cup 31 under the pressure of the piston 22.
Preferably, the driving member 21 is an electric cylinder capable of directly pushing the piston 22 to slide along the inner wall of the reservoir 23. By controlling the frequency of the action of the electric cylinder, the electrolyte in the liquid storage cylinder 23 can be injected into the measuring cup 31 at a controllable frequency, so that the electrolyte in the measuring cup 31 can be released onto a test platform of the tracking tester at a controllable frequency, the problem of uneven dropping of the existing tracking tester is solved, and the test precision of the tracking tester is improved.
Preferably, the dropping device further comprises a liquid supply assembly 4, wherein the liquid supply assembly 4 is used for supplying electrolyte to the liquid storage cylinder 23, and when the electrolyte in the liquid storage cylinder 23 is too low, the liquid supply assembly 4 supplies the electrolyte to the liquid storage cylinder 23.
Specifically, the liquid supply assembly 4 includes a liquid storage tank 41, a liquid supply pump 42, and a first liquid supply pipe 43, and the liquid storage tank 41 and the liquid supply pump 42 are mounted on the bracket 1.
The liquid storage tank 41 is used for storing electrolyte; the liquid supply pump 42 is connected with the liquid storage tank 41 and used for pumping electrolyte; one end of the first liquid sending pipe 43 is connected to the liquid supply pump 42, and the other end is communicated with the liquid cylinder 23. The liquid supply pump 42 feeds the electrolyte in the tank 41 into the liquid cylinder 23 through the first liquid feed pipe 43, and realizes automatic liquid replenishment to the liquid cylinder 23. The operation workman can once only deposit sufficient electrolyte in the liquid reserve tank 41, avoids the artifical electrolyte that frequently adds to the liquid reserve tank 23.
Preferably, in order to prevent the electrolyte in the liquid storage tank 41 from leaking into the liquid storage cylinder 23, a liquid supply valve 44 is provided at the connection of the first liquid feeding pipe 43 and the liquid storage cylinder 23, and when the liquid supply pump 42 stops pumping the electrolyte, the liquid supply valve 44 is closed, and when the liquid supply pump 42 pumps the electrolyte, the liquid supply valve 44 is opened.
Specifically, the support 1 includes a base 11, two oppositely disposed upright posts 12, and a cross bar 13 connected to the top ends of the two upright posts 12.
The invention provides a tracking tester, which comprises the dropping device, wherein the dropping device is used for controlling the dropping amount of electrolyte in the test process, and the test precision of the tracking tester is effectively improved.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A dripping device, comprising:
a support (1);
the infusion component (2) is arranged on the bracket (1) and is used for conveying electrolyte;
the measuring component (3) is arranged on the bracket (1), the measuring component (3) is used for receiving the electrolyte delivered by the infusion component (2), the measuring component (3) is configured to measure whether the volume weight of the electrolyte delivered to the measuring component (3) by the infusion component (2) reaches a preset value or not in real time, when the volume weight of the electrolyte measured by the measuring component (3) reaches the preset value, the infusion component (2) stops delivering the electrolyte, and the measuring component (3) releases the electrolyte onto a test platform of the tracking tester.
2. A dripping device according to claim 1, characterized in that the measuring assembly (3) comprises:
the measuring cup (31) is arranged on the support (1), a liquid inlet (34) is formed in the measuring cup (31), the liquid inlet (34) is communicated with the infusion component (2), the infusion component (2) conveys the electrolyte into the measuring cup (31) through the liquid inlet (34), a liquid outlet valve (33) is arranged at the bottom of the measuring cup (31), and the electrolyte in the measuring cup (31) is released onto the test platform through the liquid outlet valve (33);
a resistance film (32) applied to the inner side wall of the measuring cup (31);
and one end of the power supply is arranged at the bottom end of the measuring cup (31) and can be in contact with the electrolyte, and the other end of the power supply is electrically connected with the top of the resistance film (32).
3. A dripping device according to claim 2, characterized in that the resistive film (32) is a pure silver film.
4. A dripping device according to claim 2, characterized in that the lower part of the measuring cup (31) is in the shape of an inverted circular truncated cone.
5. A dripping device according to claim 2, wherein the infusion set (2) comprises:
the liquid storage cylinder (23) is used for storing the electrolyte, the liquid storage cylinder (23) comprises a first end and a second end opposite to the first end, and the first end is communicated with the liquid inlet (34);
an advancing mechanism configured to be able to advance the electrolyte in the reservoir (23) into the measuring cup (31) through the liquid inlet (34).
6. A dripping device according to claim 5, wherein the propelling mechanism comprises:
a driving member (21) mounted on the bracket (1);
the piston (22) is arranged in the liquid storage cylinder (23) and is connected with the liquid storage cylinder (23) in an interference fit mode, and the driving piece (21) can drive the piston (22) to slide from the second end to the first end.
7. A dripping device according to claim 6, characterized in that the drive member (21) is an electric cylinder.
8. A dripping device according to claim 5, further comprising a liquid supply assembly (4), the liquid supply assembly (4) being configured to supply the reservoir (23) with the electrolyte.
9. A dripping device according to claim 8, characterized in that the liquid supply assembly (4) comprises:
a reservoir (41) for storing the electrolyte;
a liquid supply pump (42) connected to the liquid storage tank (41) for pumping the electrolyte;
and a first liquid feeding pipe (43) having one end connected to the liquid feeding pump (42) and the other end communicated with the liquid storage cylinder (23).
10. An electric leakage tracking tester comprising the dropping device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013587.9A CN110703053B (en) | 2019-10-23 | 2019-10-23 | Dropping device and leakage tracking testing machine adopting same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013587.9A CN110703053B (en) | 2019-10-23 | 2019-10-23 | Dropping device and leakage tracking testing machine adopting same |
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| Publication Number | Publication Date |
|---|---|
| CN110703053A true CN110703053A (en) | 2020-01-17 |
| CN110703053B CN110703053B (en) | 2022-02-18 |
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| CN201911013587.9A Active CN110703053B (en) | 2019-10-23 | 2019-10-23 | Dropping device and leakage tracking testing machine adopting same |
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| CN (1) | CN110703053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116046730A (en) * | 2023-04-03 | 2023-05-02 | 宁德时代新能源科技股份有限公司 | Electrolyte monitoring device, method, storage medium, and program product |
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|---|---|
| CN110703053B (en) | 2022-02-18 |
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