CN115459055A - Discharge device, three-electrode gas switch and switch discharge method - Google Patents
Discharge device, three-electrode gas switch and switch discharge method Download PDFInfo
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- CN115459055A CN115459055A CN202211317291.8A CN202211317291A CN115459055A CN 115459055 A CN115459055 A CN 115459055A CN 202211317291 A CN202211317291 A CN 202211317291A CN 115459055 A CN115459055 A CN 115459055A
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- discharge
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/16—Series resistor structurally associated with spark gap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T2/00—Spark gaps comprising auxiliary triggering means
- H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
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- Gas-Filled Discharge Tubes (AREA)
Abstract
The invention discloses a discharging device, which comprises a lifting component and a discharging component, wherein the lifting component comprises a lifting piece and an insulating plate, and the insulating plate is used for supporting the discharging component and realizing discharging electrical isolation; the discharging assembly comprises discharging press blocks which are driven by the lifting piece and are respectively in contact with or far away from the discharging positive electrode and the discharging negative electrode, discharging resistors are connected between the discharging press blocks, and the discharging positive electrode and the discharging negative electrode, the discharging press blocks and the discharging resistors form a discharging loop. The invention effectively releases the residual voltage of the pulse energy storage capacitor, thereby avoiding the occurrence of safety accidents.
Description
Technical Field
The invention belongs to the technical field of discharge, and particularly relates to a discharge device, a three-electrode gas switch and a switch discharge method.
Background
The three-electrode gas switch is usually used as a primary circuit pulse current discharge device of a pulse energy storage capacitor in electromagnetic pulse welding, and is widely applied due to strong current capacity, long service life and easy maintenance.
The working principle of the three-electrode gas switch is as follows: the gas is ionized by triggering the electrode arc ignition to appear in the form of electron collapse, and particularly, the gas is generated into a streamer (gas ions) under the action of positive and negative high voltage (dozens of kilovolts) of the electrode in the pulse energy storage capacitor to conduct the positive and negative electrodes of a three-electrode gas switch with a certain interval, so that the voltage of the pulse energy storage capacitor is released.
However, after the three-electrode gas switch is completed, the pulse energy storage capacitor usually has a residual voltage of several tens of volts, and the residual voltage cannot trigger the electrodes to strike arcs, so that the positive electrode and the negative electrode of the three-electrode gas switch cannot be conducted, and the residual voltage cannot be released through the three-electrode gas switch.
Disclosure of Invention
In view of the above drawbacks and needs of the prior art, the present invention provides a discharge device and a three-electrode gas switch, which can effectively release the residual voltage of a pulse energy storage capacitor, thereby avoiding safety accidents.
In a first aspect, the present invention provides a discharge device, including a lifting assembly and a discharge assembly, where the lifting assembly includes a lifting member and an insulating plate, and the insulating plate is used to support the discharge assembly and realize discharge electrical isolation;
the discharging assembly comprises discharging press blocks which are driven by the lifting piece and are respectively in contact with or far away from the discharging positive electrode and the discharging negative electrode, discharging resistors are connected between the discharging press blocks, and the discharging positive electrode and the discharging negative electrode, the discharging press blocks and the discharging resistors form a discharging loop;
the driving contact or separation range of the lifting piece is 25mm-40mm.
Optionally, the discharge assembly includes a discharge resistor and two discharge voltage blocks, the two discharge voltage blocks are both fixed on the insulating plate, and the two discharge voltage blocks are arranged at intervals, and the discharge resistor is connected in series between the two discharge voltage blocks through a wire.
Optionally, the lift group still includes the support frame, the support frame includes diaphragm and riser, the diaphragm with the riser is connected perpendicularly, the lifter block with riser sliding fit, the slidable cartridge has the connecting rod in the diaphragm, the one end of connecting rod with the insulation board is connected perpendicularly, the other end of connecting rod with the top of lifter block is connected perpendicularly.
Alternatively, the material of the discharge compact is preferably stainless steel; the resistance of the discharge resistor is 5-10 ohms.
Optionally, the lifting member includes an electric control telescopic mechanism and a lifting block, the bottom of the lifting block is fixedly connected with one end of the electric control telescopic mechanism to drive the lifting block to lift, and the top of the lifting block is fixedly connected with the insulating plate.
Optionally, the lifting member further comprises a guide rod, the guide rod is vertically arranged, the electric control telescopic mechanism is sleeved on the guide rod, and the lifting block is slidably sleeved at the top end of the guide rod.
Optionally, the lifting piece further comprises a push-pull electromagnet, the push-pull electromagnet is located below the insulating plate, and a push-pull portion of the push-pull electromagnet is in transmission connection with the insulating plate.
In a second aspect, the present invention provides a three-electrode gas switch comprising a discharge device as described in the first aspect.
Optionally, the three-electrode gas switch includes a positive electrode and a negative electrode, the positive electrode and the negative electrode are arranged at an interval, the positive electrode and the negative electrode are respectively arranged opposite to the two discharge compacts, and a distance between the positive electrode and the corresponding discharge compact and a distance between the negative electrode and the corresponding discharge compact are not less than 25mm.
In a third aspect, the present invention provides a discharge method for a three-electrode gas switch, comprising the steps of:
(1) The discharge signal is given, the control system can give a high-voltage discharge signal to a trigger lead in the middle of the negative electrode, the tip of the trigger lead and the negative electrode are ignited to generate plasma, the plasma is used as a conductor, a conductive channel is formed between the positive electrode and the negative electrode, and air dielectric breakdown in the middle of the positive electrode and the negative electrode is induced;
(2) The electric control telescopic mechanism drives the insulating plate and the discharge pressing block to ascend according to the discharge signal;
(3) The two discharge press blocks are respectively pressed with the anode and the cathode;
(4) The residual voltage is discharged through a discharge resistor;
(5) Giving a discharge completion signal, judging whether the discharge is completed or not according to the voltage condition on the pulse capacitor, wherein the voltage of the normal capacitor may be about 20kV, and the voltage may not be 1kV after the discharge is completed;
(6) The electric control telescopic mechanism drives the insulation plate and the discharge press block to return to the original position according to the discharge completion signal, and the spring can rebound the device to a safe position. Because the contact surface of the two is made of graphite, the phenomena of ablation, adhesion and the like can not occur.
The technical scheme of the invention has the following beneficial effects:
when the discharge device is matched with the three-electrode gas switch to discharge residual voltage in the pulse energy storage capacitor (after the three-electrode gas switch finishes normal discharge on the pulse energy storage capacitor), the lifting piece drives the insulating plate to ascend, so that the two discharge press blocks are driven to ascend, the two discharge press blocks are respectively in contact with and tightly press with the anode and the cathode of the three-electrode gas switch, the pulse energy storage capacitor, the anode, the cathode, the two discharge press blocks and the discharge resistor form a closed loop, and the residual voltage is discharged through the discharge resistor after passing through the three-electrode gas switch, so that the residual voltage in the pulse energy storage capacitor is avoided, and further safety accidents are avoided.
That is to say, the discharge device provided by the invention can enable the discharge device and the three-electrode switch to form a conductive discharge loop under the action of electric control under the condition that a safety distance is kept between the discharge device and the three-electrode switch in an electric control or magnetic control mode after the three-electrode gas switch discharges the pulse energy storage capacitor, and can effectively release the residual voltage of the pulse energy storage capacitor through the three-electrode gas switch, thereby avoiding safety accidents.
Drawings
Fig. 1 is a schematic structural diagram of a discharge device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a three-electrode gas switch according to an embodiment of the present invention.
The symbols in the drawings represent the following meanings:
1. a lifting assembly; 11. a lifting member; 111. an electric control telescopic mechanism; 112. a lifting block; 113. a guide bar; 114. a support frame; 1141. a transverse plate; 1142. a vertical plate; 1143. a connecting rod; 12. an insulating plate; 2. a discharge assembly; 21. a discharge resistor; 22. discharging and briquetting; 23. a wire; 3. a positive electrode; 4. and a negative electrode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of a discharge device according to an embodiment of the present invention, and as shown in fig. 1, the discharge device includes a lifting assembly 1 and a discharge assembly 2.
The lifting assembly 1 comprises a lifting piece 11 and an insulating plate 12, wherein the insulating plate 12 is horizontally arranged, and an output shaft of the lifting piece 11 is in transmission connection with the insulating plate 12 so as to drive the insulating plate 12 to lift.
The discharging assembly 2 comprises a discharging resistor 21 and two discharging press blocks 22, the two discharging press blocks 22 are fixed on the insulating plate 12, the two discharging press blocks 22 are arranged at intervals, and the discharging resistor 21 is connected in series between the two discharging press blocks 22 through a conducting wire 23.
For the discharge device provided by the embodiment of the invention, when the three-electrode gas switch is matched to discharge the residual voltage in the pulse energy storage capacitor (after the three-electrode gas switch completes normal discharge on the pulse energy storage capacitor), the lifting piece 11 drives the insulating plate 12 to ascend (see fig. 2), so that the two discharge press blocks 22 are driven to ascend, the two discharge press blocks 22 are respectively contacted and pressed with the anode 3 and the cathode 4 of the three-electrode gas switch, the pulse energy storage capacitor, the anode 3, the cathode 4, the two discharge press blocks 22 and the discharge resistor 21 form a closed loop, and the residual voltage is discharged through the discharge resistor 21 after passing through the three-electrode gas switch, so that the residual voltage in the pulse energy storage capacitor is avoided, and further, safety accidents are avoided.
That is to say, the discharge device provided by the embodiment of the invention can effectively release the voltage remained by the pulse energy storage capacitor through the three-electrode gas switch, thereby avoiding the occurrence of safety accidents.
Illustratively, the discharge resistor 21, the discharge compact 22 and the wire 23 are all located above the insulating plate 12, and may serve as an insulation for the discharge resistor 21, the discharge compact 22 and the wire 23. In addition, before discharging the residual voltage in the pulse energy storage capacitor, the discharge device keeps a safe distance with the three-electrode gas switch (the discharge voltage block 22 is contacted after rising). That is, the discharge device provided by the invention can effectively ensure the safety before and after the discharge.
In one implementation of the present invention, the lifting member 11 may include a push-pull electromagnet, the push-pull electromagnet is located below the insulating plate 12, and a push-pull portion of the push-pull electromagnet is in transmission connection with the insulating plate 12.
In the above embodiment, according to the leakage flux principle of the spiral pipe, the push-pull electromagnet can realize the linear motion of the push-pull part after being powered off, thereby conveniently realizing the lifting of the insulating plate 12.
In another implementation manner of the present invention, the lifting member 11 may further include an electrically controlled telescoping mechanism 111 (e.g., an electrically controlled spring) and a lifting block 112, a bottom of the lifting block 112 is fixedly connected to one end of the electrically controlled telescoping mechanism 111 to drive the lifting block 112 to lift, and a top of the lifting block 112 is fixedly connected to the insulating plate 12.
In the above embodiment, the lifting of the lifting block 112 can be controlled by the power on and off of the electric control telescopic mechanism 111, so that the automation is facilitated, and the safety of an operator is ensured.
Illustratively, when the electrically controlled telescopic mechanism 111 moves telescopically according to an electrical signal, the lifting block 112 and the insulating plate 12 are driven to move upwards, so that the two discharge press blocks 22 are respectively contacted and pressed with the anode 3 and the cathode 4 of the three-electrode gas switch, thereby realizing discharge. When the electric control telescopic mechanism 111 retracts according to an electric signal, the lifting block 112 and the insulating plate 12 are driven to move downwards, so that a certain safety distance is kept between the two discharging pressing blocks 22 and the anode 3 and the cathode 4 of the three-electrode gas switch respectively, the discharging pressing blocks 22 cannot be punctured when the three-electrode gas switch normally discharges the pulse energy storage capacitor, the safety distance is kept, electric arcs cannot be formed among the anode and the cathode of the three-electrode gas switch and the discharging pressing blocks, and the discharging device is further kept in an unused state.
In an embodiment, the lifting member 11 further includes a guide rod 113, the guide rod 113 is vertically disposed, the electrically controlled telescopic mechanism 111 is sleeved on the guide rod 113, and the lifting block 112 is slidably sleeved on a top end of the guide rod 113.
In the above embodiment, the guide rod 113 can guide not only the ascending and descending of the elevator block 112 but also the expansion and contraction of the electrically controlled expansion and contraction mechanism 111.
In other embodiments of the present invention, the lifting member 11 may also be an air cylinder, an electric push rod or other lifting mechanisms, which is not limited by the present invention.
Illustratively, the lifting assembly 1 comprises a support frame 114, the support frame 114 comprises a transverse plate 1141 and a vertical plate 1142, the transverse plate 1141 is vertically connected with the vertical plate 1142, the lifting block 112 is in sliding fit with the vertical plate 1142, a connecting rod 1143 is slidably inserted into the transverse plate 1141, one end of the connecting rod 1143 is vertically connected with the insulating plate 12, and the other end of the connecting rod 1143 is vertically connected with the top of the lifting block 112.
In the above embodiment, the horizontal plate 1141 supports the insulating plate 12 when the insulating plate 12 is not lifted. The vertical plate 1142 guides the lifting of the lifting block 112, and the connecting rod 1143 connects the insulating plate 12 and the lifting block 112.
In this embodiment, each discharge compact 22 is a stainless steel structure, and when the elevating block 112 pushes the discharge compact 22 to contact with the positive electrode 3 and the negative electrode 4, a slight spark occurs when the contact distance is close. The stainless steel has high temperature resistance and good conductor characteristics, and can be used as the discharge compact 22 to avoid erosion on the compact surface during ignition. Therefore, using stainless steel as the material of the discharge block 22 can extend the life of the discharge device.
Illustratively, the resistance of the discharge resistor 21 may be changed to 5 ohm 100W, and the wire 23 may be a normal power wire.
The workflow of discharge placement is briefly described as follows:
1, electrifying the electric control telescopic mechanism, providing a high-voltage discharge signal to the trigger lead in the middle of the negative electrode by the control system, igniting the tip of the trigger lead and the negative electrode to generate plasma, taking the plasma as a conductor, forming a conductive channel between the positive electrode 3 and the negative electrode 4, and inducing the breakdown of an air medium in the middle of the positive electrode 3 and the negative electrode 4. The excitation voltage for driving the discharge device can be adjusted according to the control signal, and is generally selectable at DC12V, DC V, AC 220.
2. The electrically controlled telescopic mechanism 111 drives the insulating plate 12 and the discharge briquetting 22 to ascend.
3. The two discharge compacts 22 are respectively pressed against the anode 3 and the cathode 4.
4. The residual voltage is discharged through the discharge resistor 21.
5. Keeping for 5 seconds, and controlling the power supply of the electric control telescopic mechanism through a time relay.
6. The electrically controlled telescopic mechanism 111 pulls the insulating plate 12 and the discharge compact 22 back to the original position by the spring 111 according to the power loss. After the discharge is finished, the spring can rebound the device to a safe position, and the contact surface of the device and the device is made of graphite, so that ablation and adhesion cannot occur. Of course, a position sensing device may be added to provide feedback as to whether the vehicle is currently returning to a safe position.
The driving moment of the electromagnet is enough to overcome the resistance of the spring and the gravity of the corresponding object, and the point allowance is released.
The invention also provides a three-electrode gas switch (see fig. 2) comprising the discharge device.
For the three-electrode gas switch provided by the embodiment of the invention, when the pulse energy storage capacitor is discharged, the realized discharging steps mainly comprise: first, the two discharge compacts 22 of the discharge device are maintained at a certain safety distance from the positive electrode 3 and the negative electrode 4 of the three-electrode gas switch. Then, by striking the electrode to strike arc, gas ion conduction is formed between the positive electrode 3 and the negative electrode 4, thereby completing normal discharge.
And when discharging to remaining voltage in the pulse energy storage capacitor, through the lift piece 11 drive insulation board 12 rise to drive two briquetting 22 that discharge, make the briquetting 22 that discharge compress tightly with anodal 3, negative pole 4 contact respectively, pulse energy storage capacitor, anodal 3, negative pole 4, two briquetting 22 that discharge and discharge resistance 21 form a closed return circuit, residual voltage discharges through discharge resistance 21 behind the three-electrode gas switch, thereby avoid remaining voltage in the pulse energy storage capacitor, and then avoid the emergence of incident.
That is to say, the three-electrode gas switch provided by the embodiment of the invention can effectively release the residual voltage of the pulse energy storage capacitor through the three-electrode gas switch, thereby avoiding the occurrence of safety accidents.
Specifically, the three-electrode gas switch comprises an anode 3 and a cathode 4, the anode 3 and the cathode 4 are arranged at intervals, the anode 3 and the cathode 4 are respectively arranged opposite to the two discharge compacts 22, and the distance between the anode 3 and the corresponding discharge compact 22 and the distance between the cathode 4 and the corresponding discharge compact 22 are not less than 25mm.
In the above embodiment, the distance a between the positive electrode 3 and the corresponding discharge block 22 and the distance B between the negative electrode 4 and the corresponding discharge block 22 are not less than 25mm, so that when the three-electrode gas switch discharges the pulse energy storage capacitor normally, the distances between the positive electrode 3 and the negative electrode 4 of the three-electrode gas switch and the corresponding discharge block 22 reach a safe distance, and at this time, the discharge block 22 is not broken down under high voltage.
In addition, the maximum expansion distance of the electric control expansion mechanism 111 or the maximum displacement distance of the push-pull part of the push-pull electromagnet provided by the invention can be 30mm, and 25mm can effectively ensure that the discharge briquetting 22 is tightly attached to the anode 3 or the cathode 4.
Further, an insulating plate is provided between the positive electrode 3, the negative electrode 4, and the discharge compact 22, and the insulating plate is provided with a push-pull mechanism. And during discharging, the push-pull mechanism drives the insulating plate to be drawn out from the space between the anode and the cathode and the discharge press block to carry out contact discharge. After the discharge is finished, the push-pull mechanism drives the insulating plate to return to the positions between the positive electrode, the negative electrode and the discharge briquetting so as to strengthen the insulation between the main electrode and the discharge device and improve the reliability.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A discharge device is characterized by comprising a lifting assembly (1) and a discharge assembly (2), wherein the lifting assembly (1) comprises a lifting piece (11) and an insulating plate (12), and the insulating plate (12) is used for supporting the discharge assembly (2) and realizing discharge electrical isolation;
the discharging assembly comprises discharging press blocks (22) which are driven by the lifting piece (11) and are respectively in contact with or far away from the discharging positive electrode and the discharging negative electrode, discharging resistors (21) are connected between the discharging press blocks (22), and the discharging positive electrode and the discharging negative electrode, the discharging press blocks (22) and the discharging resistors (21) form a discharging loop;
the driving contact or separation range of the lifting piece (11) is 25mm-40mm.
2. The discharge apparatus according to claim 1, wherein the discharge assembly (2) includes a discharge resistor (21) and two discharge compacts (22), the two discharge compacts (22) are fixed on the insulating plate (12), and the two discharge compacts (22) are arranged at intervals, and the discharge resistor (21) is connected in series between the two discharge compacts (22) through a wire (23).
3. The discharge device according to claim 1, wherein the lifting assembly (1) further comprises a support frame (114), the support frame (114) comprises a transverse plate (1141) and a vertical plate (1142), the transverse plate (1141) is vertically connected with the vertical plate (1142), the lifting block (112) is in sliding fit with the vertical plate (1142), a connecting rod (1143) is slidably inserted in the transverse plate (1141), one end of the connecting rod (1143) is vertically connected with the insulating plate (12), and the other end of the connecting rod (1143) is vertically connected with the top of the lifting block (112).
4. The discharge apparatus as set forth in claim 1, wherein the discharge compact (22) is preferably made of stainless steel; the resistance of the discharge resistor (21) is 5-10 ohms.
5. The discharge device according to any one of claims 1 to 4, wherein the lifting member (11) comprises an electrically controlled telescoping mechanism (111) and a lifting block (112), the bottom of the lifting block (112) is fixedly connected with one end of the electrically controlled telescoping mechanism (111) to drive the lifting block (112) to lift, and the top of the lifting block (112) is fixedly connected with the insulating plate (12).
6. The discharging device according to claim 5, wherein the lifting member (11) further comprises a guide rod (113), the guide rod (113) is vertically arranged, the electrically controlled telescopic mechanism (111) is sleeved on the guide rod (113), and the lifting block (112) is slidably sleeved on the top end of the guide rod (113).
7. The discharge device according to claim 4, wherein said lifting member (11) further comprises a push-pull electromagnet, said push-pull electromagnet being located below said insulating plate (12), a push-pull portion of said push-pull electromagnet being drivingly connected to said insulating plate (12).
8. A three-electrode gas switch, characterized in that it comprises a discharge device according to any one of claims 1-7.
9. The three-electrode gas switch of claim 8, wherein the three-electrode gas switch comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode are arranged at intervals, the positive electrode and the negative electrode are respectively arranged opposite to the two discharge compacts, and the distance between the positive electrode and the corresponding discharge compact and the distance between the negative electrode and the corresponding discharge compact are not less than 25mm.
10. A method for achieving a three-electrode gas switching discharge using a discharge device as claimed in any of claims 1-7, characterized in that the method comprises the steps of:
(1) The discharge signal is given, the control system can give a high-voltage discharge signal to a trigger lead in the middle of the negative electrode, the tip of the trigger lead and the negative electrode are ignited to generate plasma, the plasma is used as a conductor, a conductive channel is formed between the positive electrode and the negative electrode, and air dielectric breakdown in the middle of the positive electrode and the negative electrode is induced;
(2) The electric control telescopic mechanism (111) drives the insulating plate (12) and the discharge pressing block (22) to ascend according to the discharge signal;
(3) The two discharge press blocks (22) are respectively pressed with the anode (3) and the cathode (4);
(4) The residual voltage is discharged through a discharge resistor (21);
(5) Giving a discharge completion signal, judging whether the discharge is completed according to the voltage condition on the pulse capacitor, and controlling a power supply of the electric control telescopic mechanism through a time relay to keep the electric control telescopic mechanism for 5 seconds;
(6) The electric control telescopic mechanism (111) drives the insulation plate (12) and the discharge pressing block (22) to return to the original position according to the discharge completion signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211317291.8A CN115459055A (en) | 2022-10-26 | 2022-10-26 | Discharge device, three-electrode gas switch and switch discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211317291.8A CN115459055A (en) | 2022-10-26 | 2022-10-26 | Discharge device, three-electrode gas switch and switch discharge method |
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| Publication Number | Publication Date |
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| CN115459055A true CN115459055A (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211317291.8A Pending CN115459055A (en) | 2022-10-26 | 2022-10-26 | Discharge device, three-electrode gas switch and switch discharge method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116454435A (en) * | 2023-06-15 | 2023-07-18 | 宁德时代新能源科技股份有限公司 | Discharge device and detection system |
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2022
- 2022-10-26 CN CN202211317291.8A patent/CN115459055A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116454435A (en) * | 2023-06-15 | 2023-07-18 | 宁德时代新能源科技股份有限公司 | Discharge device and detection system |
| CN116454435B (en) * | 2023-06-15 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | Discharge device and detection system |
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