Capacitor storage power release device for petroleum instrument
By combining a quick-connect plug, a discharge capacitor, and a voltmeter, the problem of the inability to automatically, reliably, and controllably release the stored charge in petroleum instruments is solved, achieving automated and controllable charge release and improving safety and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING TERRY TECH
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-21
AI Technical Summary
The electrical charge stored in the capacitors of petroleum instruments cannot be released automatically, reliably, and in a controllable manner, leading to the risk of electric shock to the human body and damage to the instruments, affecting work efficiency and safety.
The system employs a combination of a quick-connect plug, a discharge capacitor, a voltmeter, and a release switch to achieve automated and controllable power release. It can be quickly connected to petroleum instruments via the quick-connect plug, the discharge capacitor forms a series circuit with other capacitors, the voltmeter monitors the power in real time, and the release switch operates automatically.
It enables automatic, reliable, and controllable release of stored energy in petroleum instruments' capacitors, improving operational safety and work efficiency.
Smart Images

Figure CN224537797U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of petroleum instrument technology, and more specifically, to a device that can automatically, reliably, and controllably release the electrical charge stored in the capacitor of a petroleum instrument. Background Technology
[0002] Currently, during the testing and use of petroleum instruments, the electrical charge stored in the instrument's capacitors is very large, which poses a great danger to both the human body and the instrument itself.
[0003] The phenomenon of capacitors storing electrical charge in petroleum instruments is mainly related to the basic characteristics of capacitors and the instrument's operating environment. A capacitor is an electronic component that stores electrical charge. When the instrument is powered on, the capacitor accumulates charge through charging. After power is cut off, if the charge is not released through a discharge circuit, it remains due to the poor conductivity of the insulating medium between the plates (such as air or a thin film), forming residual charge. Petroleum instruments (such as logging tools and drilling sensors) often operate in high-voltage, complex circuits. Some capacitors are designed to meet instantaneous power supply, filtering, or energy storage needs, and have relatively large capacities. Furthermore, the instruments may lack a robust automatic discharge mechanism after power failure, leading to long-term charge storage.
[0004] When repairing or operating instruments, contact with charged capacitors can result in residual charge being released through the body, causing electric shock. Residual charge in high-voltage capacitors, in particular, can lead to burns, muscle spasms, and other injuries. Residual charge may also combine with the voltage in the circuit upon re-energization, exceeding the component's withstand voltage and damaging chips, resistors, etc., affecting instrument accuracy or lifespan. For petroleum instruments that rely on electrical signals (such as resistivity logging tools), residual charge in capacitors may interfere with normal signal transmission, causing distorted measurement data and impacting geological analysis or drilling decisions. In summary, the stored charge in capacitors of petroleum instruments must be discharged using standardized procedures (such as using a discharge pen or connecting a discharge resistor) to mitigate risks and ensure personnel safety and normal equipment operation.
[0005] In existing technologies, the release of stored charge in capacitors requires manual operation, which poses the aforementioned safety risks to the operator. Furthermore, this operation is neither automated nor controllable; it is impossible to determine whether the charge has been fully released, thus impacting work efficiency and exhibiting extremely poor controllability.
[0006] Therefore, how to automatically, reliably, and controllably release the electrical charge stored in the capacitors of petroleum instruments is a technical problem that urgently needs to be solved in this field. Utility Model Content
[0007] One of the main objectives of this invention is to overcome at least one of the defects of the prior art and provide a device for releasing the stored charge of a petroleum instrument capacitor in an automatic, reliable and controllable manner.
[0008] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:
[0009] According to one aspect of the present invention, a device for releasing stored charge in a capacitor of an oil instrument is provided for releasing charge from a capacitor in the oil instrument. The device includes a discharge capacitor, a voltmeter, a release switch, and a quick-connect plug. The quick-connect plug is quickly electrically connected to the oil instrument. After the connection, the discharge capacitor forms a series circuit with the capacitor through the release switch, and the voltmeter is connected in parallel with the discharge capacitor.
[0010] According to one embodiment of the present invention, the voltmeter is powered by a battery.
[0011] According to one embodiment of the present invention, the power supply battery is connected in series with the voltmeter via a power switch.
[0012] According to one embodiment of the present invention, the quick-connect plug is connected and positioned by a customized male and female connector pin.
[0013] According to one embodiment of the present invention, there are two quick-connect plugs, located at both ends respectively.
[0014] According to one embodiment of the present invention, the quick-connect plug is connected to the housing.
[0015] According to one embodiment of the present invention, the power supply battery is disposed in any of the housings.
[0016] As can be seen from the above technical solution, the advantages and positive effects of the petroleum instrument capacitor storage and charge release device of this utility model are as follows:
[0017] This invention employs a quick-connect plug for rapid connection and disconnection, uses a discharge capacitor for discharge, and employs a voltmeter to read the charge data in real time. A release switch enables automatic operation, thereby enabling automatic, reliable, and controllable release of the charge stored in the capacitor of the petroleum instrument. This improves controllability and automation while increasing work efficiency. Attached Figure Description
[0018] The various objectives, features, and advantages of this invention will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative of the invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:
[0019] Figure 1 This is a schematic diagram illustrating the working principle of the capacitor-stored charge release device for petroleum instruments of this utility model, as shown in an exemplary embodiment.
[0020] Figure 2 This is a schematic diagram illustrating the power supply of the voltmeter in the capacitive energy storage and release device of the present invention, as shown in an exemplary embodiment.
[0021] Figure 3 This is a schematic diagram of the overall layout structure of the capacitor storage and charge release device for petroleum instruments of the present invention, as shown in an exemplary embodiment.
[0022] Figure 4 and Figure 5 This is a schematic diagram of the plug-in structure corresponding to the quick-connect electrical plug in the capacitive storage and charge release device of the present invention, as shown in an exemplary embodiment.
[0023] Drawing number explanation:
[0024] 1. Petroleum instruments;
[0025] 2. Discharge capacitor;
[0026] 3. Release the switch;
[0027] 4. Voltmeter;
[0028] 5. Power supply battery;
[0029] 6. Power switch;
[0030] 7. Quick-connect plug;
[0031] 8. Quick-connect plug;
[0032] 9. Shell;
[0033] 11. Capacitors. Detailed Implementation
[0034] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.
[0035] In the following description of various examples of the present invention, reference is made to the accompanying drawings, which form part of the present invention, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of the present invention. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present invention. Furthermore, although the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the present invention, these terms are used herein only for convenience, such as the orientation according to the examples shown in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.
[0036] like Figures 1 to 5 As shown, this utility model discloses a device for releasing the stored charge of a capacitor in a petroleum instrument 1. It is used to release the charge of a capacitor 11 in a petroleum instrument 1. The device includes a discharge capacitor 2, a voltmeter 4, a release switch 3, and quick-connect plugs 7 and 8. The quick-connect plugs 7 and 8 are quickly electrically connected to the petroleum instrument 1. After the connection, the discharge capacitor 2 forms a series circuit with the capacitor 11 through the release switch 3. The voltmeter 4 is connected in parallel with the discharge capacitor 2.
[0037] According to one embodiment of the present invention, the voltmeter 4 is powered by a power supply battery 5.
[0038] According to one embodiment of the present invention, the power supply battery 5 is connected in series with the voltmeter 4 via a power switch 6.
[0039] According to one embodiment of this utility model, the quick-connect plugs 7 and 8 are connected and positioned using customized male and female connector pins. The specific structure is as follows: Figure 4 and Figure 5 As shown, when using it, first align the positioning holes 71 and 81 with the positioning pins on the instrument, and then accurately position it using the male and female pins of the custom connector.
[0040] According to one embodiment of the present invention, there are two quick-connect plugs 7 and 8, located at both ends respectively.
[0041] According to one embodiment of this utility model, the quick-connect electrical plugs 7 and 8 are connected to the housing 9. The housing 9 integrates the above-mentioned devices into a single structural component, making it an independently configured device.
[0042] According to one embodiment of the present invention, the power supply battery 5 is disposed in any of the housings 9.
[0043] According to one embodiment of this utility model, in use, the quick-connect plugs 7 and 8 are connected to one end of the petroleum instrument 1, the power switch 6 is turned on, and then the release switch 3 is turned on. When the value on the voltmeter 4 reaches 0, the voltmeter 4 switch is turned off, and then the power switch 6 is turned off, separating the device from the petroleum instrument 1 to complete the operation.
[0044] As can be seen from the above technical solution, the advantages and positive effects of the petroleum instrument capacitor storage and charge release device of this utility model are as follows:
[0045] This utility model uses a quick-connect plug 7 or 8 to achieve quick connection and disconnection, uses a discharge capacitor 2 for discharge, and uses a voltmeter 4 to read the power data in real time. The release switch 3 performs automatic operation, thereby enabling automatic, reliable and controllable release of the power stored in the capacitor 11 of the petroleum instrument 1, improving controllability and automation while increasing work efficiency.
[0046] This utility model also has the following features:
[0047] 1. Simple operation, customized quick-connect plugs 7 and 8 accurately connect to the position to be released through positioning.
[0048] 2. The energy stored in the capacitor 11 of the petroleum instrument 1 can be accurately displayed by the voltmeter 4.
[0049] 3. Both ends can release power.
[0050] Those skilled in the art to which this utility model pertains should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this utility model.
Claims
1. A device for releasing the electric charge of a capacitor in a petroleum instrument, for releasing the electric charge of a capacitor in a petroleum instrument, characterized by, The instrument includes a discharge capacitor, a voltmeter, a release switch, and a quick-connect electrical plug. The quick-connect electrical plug is quickly electrically connected to the petroleum instrument. After the connection, the discharge capacitor forms a series circuit with the capacitor through the release switch, and the voltmeter is connected in parallel with the discharge capacitor.
2. The oil instrument capacitor storage power release device of claim 1, wherein, The voltmeter is powered by a battery.
3. The oil instrument capacitor storage power release device of claim 2, wherein, The power supply battery is connected in series with the voltmeter via a power switch.
4. The oil instrument capacitor storage power release device of claim 3, wherein, The quick-connect plug is connected and positioned using custom-designed male and female connector pins.
5. The oil instrument capacitor storage power release device of claim 4, wherein, There are two quick-connect plugs, located at both ends.
6. The oil instrument capacitor storage power release device of claim 5, wherein, The quick-connect plug is connected to the housing.
7. The oil instrument capacitor storage power release device of claim 6, wherein, The power supply battery is disposed in any of the housings.