CN116247520A - Point discharge device based on mechanical trigger - Google Patents

Abstract

The application discloses a point discharge device based on mechanical triggering, which comprises a triggering mechanism, a friction nano generator and a discharge structure, wherein the triggering mechanism is connected with the friction nano generator, the friction nano generator comprises a first friction unit and a second friction unit, and the triggering mechanism is used for enabling the first friction unit and the second friction unit to be in contact connection in an initial state; when the trigger mechanism is triggered, the trigger mechanism drives the first friction unit and the second friction unit to be separated, so that an electric field is generated between the first friction unit and the second friction unit; the discharge structure comprises a first discharge tip and a second discharge tip, wherein the first discharge tip and the second discharge tip are provided with gaps, the first discharge tip is positioned on the first friction unit, the second discharge tip is positioned on the second friction unit, and the first discharge tip and the second discharge tip are discharged under the action of an electric field. The device can realize self-powered discharge.

Description

A tip discharge device based on mechanical triggering

technical field

The present application relates to the technical field of tip discharge, in particular to a tip discharge device based on mechanical triggering.

Background technique

Point discharge is a kind of corona discharge, which is a discharge phenomenon that occurs on the sharp part of an object under the action of a strong electric field. General electronic ignition devices and industrial chimney dust removal devices all use the principle of cutting-edge discharge. Usually, cutting-edge discharge devices require an external power supply, which consumes a lot of energy.

Contents of the invention

The present application provides a tip discharge device based on mechanical triggering, which solves the problem that the tip discharge device needs external power supply and consumes a lot of energy.

In order to achieve the above purpose, a tip discharge device based on mechanical triggering provided by the present application includes a trigger mechanism, a triboelectric nanogenerator and a discharge structure, wherein the trigger mechanism is connected with the triboelectric nanogenerator, and the triboelectric nanogenerator The machine includes a first friction unit and a second friction unit. In an initial state, the trigger mechanism is used to keep the first friction unit and the second friction unit in contact connection; when the trigger mechanism is triggered Next, the trigger mechanism drives the first friction unit and the second friction unit to separate, so that an electric field is generated between the first friction unit and the second friction unit; the discharge structure includes a first discharge A tip and a second discharge tip, the first discharge tip and the second discharge tip have a gap, the first discharge tip is located on the first friction unit, and the second discharge tip is located on the second friction unit , the first discharge tip and the second discharge tip discharge under the action of the electric field; or, the discharge structure includes a first discharge tip, and the first discharge tip is located in the first friction unit, so The first discharge tip discharges under the action of the electric field. A mechanical trigger-based cutting-edge discharge device proposed in this application can be self-powered and can be applied to scenarios such as electrical activation, electrical stimulation, electrical erasure, and electrical breakdown.

In an optional technical solution, the trigger mechanism includes an elastic member, a first carrier, and a second carrier, the first carrier and the second carrier are arranged oppositely, and the first friction unit is installed on the first a carrier, the second friction unit is installed on the second carrier, the elastic member is arranged between the first carrier and the second carrier, and is used to drive the second carrier and the first carrier separate.

In an optional technical solution, the trigger mechanism further includes a fixing component, the first carrier and the second carrier are respectively connected to the fixing component, and the fixing component is used to detachably connect the second carrier on the first carrier.

In an optional technical solution, the elastic member is a spring, the fixing assembly includes a screw and a nut, one end of the spring is fixedly connected to the first carrier, and the other end is connected to the first carrier under the action of the fixing assembly. The second carrier is offset, the screw passes through the first carrier and the second carrier, the nut is threadedly connected with the screw and the nut is located on the side of the second carrier away from the first carrier .

In an optional technical solution, the elastic member is a spring hinge, one end of the spring hinge is connected to the edge of the first carrier, and the other end is connected to the edge of the second carrier, and the fixing assembly It includes a screw and a nut, the screw passes through the first carrier and the second carrier, the nut is threadedly connected with the screw and the nut is located on the side of the second carrier away from the first carrier .

In an optional technical solution, the trigger mechanism includes a bracket, the bracket is an elastic helical structure, the first friction unit is arranged on the side of the bracket facing the center of the helix structure, and the second friction unit It is arranged on the side of the support away from the first friction unit, when the trigger mechanism is triggered, the elastic potential energy of the support is released, driving the first friction unit and the second friction unit to separate .

In an optional technical solution, the trigger mechanism further includes a housing and a fixing assembly, the housing has an accommodating cavity, the bracket and the friction nanogenerator are arranged in the accommodating cavity, and the housing It has elasticity and includes a first mounting plate and a second mounting plate oppositely arranged, and the fixing component is used for detachably connecting the first mounting plate to the second mounting plate.

In an optional technical solution, the first friction unit includes a stacked first electrode layer and a first friction layer, and the second friction unit includes a stacked second electrode layer and a second friction layer; initially In this state, the first friction layer is in contact with the second friction layer; when the trigger mechanism is triggered, the first friction layer is separated from the second friction layer.

In an optional technical solution, the first friction layer is made of a positive dielectric material, and the second friction layer is made of a negative dielectric material. Alternatively, the first friction layer is a negative dielectric material, and the second friction layer is a positive dielectric material.

In an optional technical solution, the first friction unit further includes a first substrate, the second friction unit further includes a second substrate, and the first electrode layer is disposed between the first substrate and the Between the first friction layer, the second electrode layer is arranged between the second substrate and the second friction layer, and the first substrate and the second substrate have compressibility.

Description of drawings

Fig. 1 is a schematic structural diagram of a tip discharge device based on mechanical triggering in an embodiment of the present application;

Fig. 2 is a structural schematic diagram of a mechanically triggered tip discharge device in another embodiment of the present application;

Fig. 3 is the exploded view of Fig. 2;

Fig. 4 is a structural schematic diagram of a mechanically triggered tip discharge device in yet another embodiment of the present application;

Fig. 5 is a schematic structural diagram of a mechanically triggered tip discharge device in yet another embodiment of the present application.

Reference signs:

1-trigger mechanism; 2-friction nanogenerator; 3-discharge structure; 21-first friction unit; 22-second friction unit; 31-first discharge tip; 32-second discharge tip; 111-elastic part; 12-first carrier; 13-second carrier; 14-fixing component; 1411-screw; 1412-nut; 1211-installation column; 1311-groove; 112-spring hinge; 132-housing; 1321-the first mounting plate; 1322-the second mounting plate; 140-the third screw; 211-the first substrate; 212-the first electrode layer; 213-the first friction layer; 221-the first Two substrates; 222-the second electrode layer; 223-the second friction layer.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Firstly, the triboelectric nanogenerator is introduced. Triboelectric Nanogenerator (TENG) is a high-efficiency energy device that makes TENG contact and separate from each other through mechanical motion, thereby generating electrical signals. Since its inception in 2012, TENG has been considered as a powerful power source and has broad application prospects due to its outstanding properties such as sustainability, high output performance, and unrestricted material selection. The working principle of TENG is to use the potential difference generated at both ends of the electrode by the contact separation of the friction layer of two different materials.

Fig. 1 is a schematic structural diagram of a tip discharge device based on mechanical triggering in an embodiment of the present application. As shown in FIG. 1 , an embodiment of the present application provides a tip discharge device based on mechanical triggering, including a trigger mechanism 1 , a triboelectric nanogenerator 2 and a discharge structure 3 . Wherein, the trigger mechanism 1 is connected with the triboelectric nanogenerator 2 . The above-mentioned triboelectric nanogenerator 2 includes a first friction unit 21 and a second friction unit 22 . In an initial state, the trigger mechanism 1 fixes the first friction unit 21 and the second friction unit 22 , so that the first friction unit 21 and the second friction unit 22 maintain a contact connection. When the trigger mechanism 1 is triggered, the trigger mechanism 1 drives the first friction unit 21 and the second friction unit 22 to separate, so that an electric field is generated between the first friction unit 21 and the second friction unit 22 . The above discharge structure 3 includes a first discharge tip 31 and a second discharge tip 32 , the first discharge tip 31 is located at the first friction unit 21 , and the second discharge tip 32 is located at the second friction unit 22 . The first discharge tip 31 and the second discharge tip 32 have a gap. The first discharge tip 31 and the second discharge tip 32 discharge under the action of the electric field.

In the above-mentioned embodiments, the trigger mechanism 1 is similar to a clamp that can change its shape. By changing the shape, the clamped object can be clamped and released. The clamped object refers to the first friction unit and the second friction unit of the triboelectric nanogenerator. unit. The trigger mechanism being triggered under the action of external force means that the shape of the trigger mechanism changes under the action of external force. Specifically, in the initial state, the trigger mechanism 1 is in the first form, constraining the first friction unit 21 and the second friction unit 22 together to make them contact each other. At this time, the first friction unit 21 and the second friction unit 22 No electric field is generated between them. When the trigger mechanism 1 is triggered, the trigger mechanism 1 changes into the second form, and at the same time drives the first friction unit 21 and the second friction unit 22 to separate from each other. A gap begins to appear between the first friction unit 21 and the second friction unit 22, and an electric field is generated between the two units. The discharge structure 3 is connected to the triboelectric nanogenerator 2. Under the action of a strong electric field, the equipotential surfaces of the first discharge tip 31 and the second discharge tip 32 are dense, and the intensity of the electric field increases sharply, causing the air near it to be ionized to generate gas discharge , resulting in the phenomenon of tip discharge. A mechanical trigger-based cutting-edge discharge device proposed in this application can be self-powered and can be applied to scenarios such as electrical activation, electrical stimulation, electrical erasure, and electrical breakdown.

The separation of the first friction unit 21 and the second friction unit 22 may be separated in opposite directions, or separated by relative sliding or reversed relative to each other.

In an optional embodiment, the second friction unit 22 is separated from the first friction unit 21 to generate an electric field voltage, preferably, the voltage range is 800-2000V.

The tip mentioned in the above embodiments refers to a structure with a large surface curvature. The tip can be the end of the wire; it can be the sharp corner formed by the edge of the notch provided on the surface of the object. The structure meets the discharge requirements of this application. In the embodiment of the present application, the above-mentioned first discharge tip 31 and the second discharge tip 32 may be needle-shaped structures. A gap between the first discharge tip and the second discharge tip may be 0.2mm˜3.0mm.

The discharge structure in the above embodiments includes the first discharge tip and the second discharge tip, and in other embodiments, it may only include the first discharge tip, or only include the second discharge tip. The number of discharge tips in the discharge structure does not limit the protection scope of the present invention.

FIG. 2 is a schematic structural diagram of a mechanically triggered tip discharge device in another embodiment of the present application, and FIG. 3 is an exploded view of FIG. 2 . Referring to FIG. 2 and FIG. 3 , in an embodiment, the trigger mechanism 1 may include an elastic member 111 , a first carrier 12 and a second carrier 13 . The first carrier 12 and the second carrier 13 are arranged opposite to each other. The first friction unit 21 is installed on the first carrier 12, the second friction unit 22 is installed on the second carrier 13, and the elastic member 111 is arranged between the first carrier 12 and the second carrier 13 for driving the second carrier 13 and the second carrier 13. A carrier 12 is separated.

When specifically selecting the above-mentioned carrier, the above-mentioned first carrier 12 and the second carrier 13 may have the same structure. Specifically, the carrier may be a flat plate, a ring, a cylinder, and the like. It is preferably a flat plate, which is made by 3D printing technology. The two flat plates are arranged oppositely, and the first friction unit 21 and the second friction unit 22 are arranged on opposite sides of the two flat plates. The material of the first carrier 12 and the second carrier 13 can be photocurable resin, acrylic, wood and other materials.

The above-mentioned trigger mechanism 1 may further include a fixing component 14, and the first carrier 12 and the second carrier 13 are connected to the fixing component 14 respectively. The fixing component 14 is used for detachably connecting the second carrier 13 to the first carrier 12 . Specifically, the fixing component 14 functions as a connection. In an initial state, the fixing assembly 14 connects the first carrier 12 and the second carrier 13 together, so that the first friction unit 21 and the second friction unit 22 keep in contact. The fixing component 14 can have a trigger switch, by triggering the switch, the fixing component 14 is deformed, for example, from a tightened configuration to an expanded configuration, driving the first carrier 12 and the second carrier 13 away from each other, thereby making the The first friction unit 21 and the second friction unit 22 are separated.

In a specific embodiment, the above-mentioned elastic member 111 may be a spring. The fixing assembly may include screws 1411 and nuts 1412 , one end of the spring is connected to the first carrier 12 , and the other end is connected to the second carrier 13 . The side of the first carrier 12 facing the second carrier 13 may be provided with a mounting column 1211 , the mounting column 1211 has an external thread, and one end of the spring is sleeved on the outer wall of the mounting column 1211 and screwed to the mounting column. A groove 1311 is formed on a side of the second carrier 13 facing the first carrier 12 , and the groove 1311 corresponds to the position of the mounting post 1211 . The other end of the spring is inserted into the groove 1311 to abut against the second carrier 13 . The first carrier 12 and the second carrier 13 are all provided with through holes, the screws 1411 pass through the through holes of the first carrier 12 and the second carrier 13, the nuts 1412 are threaded with the screws 1411 and the nuts 1412 are located on the second carrier 13 away from the first side of carrier 12. In the initial state, the first friction unit 21 and the second friction unit 22 are in contact with each other, and the screw 1411 and the nut 1412 are in a locked state, locking the first carrier 12 and the second carrier 13 . At this time, the spring is compressed and has elastic potential energy. The nut 1412 is screwed to loosen, and the spring springs open to move the first carrier 12 and the second carrier 13 in opposite directions, so that the first friction unit 21 and the second friction unit 22 are separated to generate an electric field. The discharge structure 3 discharges under the action of an electric field. The nut 1412 is a trigger switch of the trigger mechanism.

It is worth noting that the above-mentioned first friction unit at least partially covers the first carrier in the orthographic projection of the first carrier, and the second friction unit at least partially covers the second carrier in the orthographic projection of the second carrier. That is to say, the area of the first carrier is larger than that of the first friction unit, and the area of the second carrier is larger than that of the second friction unit. The edge area of the carrier will not cover the friction unit. The above-mentioned through holes of the first carrier and the second carrier can be located in the middle of the plate, or can be located in the edge area of the carrier. When located in the middle, the first friction unit and the second friction unit may also be provided with through holes for screws to pass through.

Fig. 4 is a schematic structural diagram of a mechanically triggered tip discharge device in another embodiment of the present application. As shown in FIG. 4 , in yet another specific embodiment, the elastic member is a spring hinge 112 , one end of the spring hinge 112 is connected to the edge of the first carrier 12 , and the other end is connected to the edge of the second carrier 13 . The fixing assembly 14 includes a second screw 141 , the second screw 141 passes through the through holes of the first carrier 12 and the second carrier 13 , the through hole of the second carrier 13 is provided with an internal thread, and the second screw 141 is screwed on the internal thread. Specifically, the screws and the spring hinges can be arranged on opposite sides of the carrier. The second screw is the trigger switch of the trigger mechanism.

Fig. 5 is a schematic structural diagram of a mechanically triggered tip discharge device in yet another embodiment of the present application. As shown in FIG. 5 , in another embodiment, the above-mentioned trigger mechanism 1 may include a bracket 113 , and the bracket 113 may be an elastic helical structure. Specifically, the support can be a planar scroll spring made of steel strips. The bracket has a center, the second friction unit 22 is arranged on the side of the plane scroll spring facing the center of the helical structure, and the first friction unit 21 is arranged on the side of the plane scroll spring away from the first friction unit, or on the contrary, the first friction The unit 21 is arranged on the side of the planar scroll spring facing the center of the helical structure, and the second friction unit 22 is arranged on the side of the planar scroll spring away from the first friction unit. In an initial state, the bracket 113 is in a tightened state. When the trigger mechanism is triggered, the bracket 113 is deformed, and the adjacent two helixes in the helical structure move away from each other, driving the first friction unit 21 and the second friction unit 22 to separate, thereby generating an electric field.

In this embodiment, the trigger mechanism may further include a casing 132 and a fixing assembly 14 , the casing 132 is ring-shaped, and has an accommodating space in the middle, and the bracket 113 and the friction nanogenerator 2 are arranged in the aforesaid accommodating space. The casing 132 can be formed by bending a strip, and the casing 132 has an opening, and the opening has a first mounting plate 1321 and a second mounting plate 1322 oppositely arranged. The casing 132 is elastic, and under the action of external force, the casing 132 can be slightly deformed. Both the first mounting plate 1321 and the second mounting plate 1322 have through holes, and the through holes of the second mounting plate 1322 have internal threads. The fixing component 14 is used for detachably connecting the first mounting plate 1321 to the second mounting plate 1322 . Specifically, the fixing component may be a third screw 140 . The third screw 140 passes through the through hole of the first mounting plate and is screwed into the through hole of the second mounting plate. The third screw 140 is a trigger switch of the trigger mechanism. In the initial state, under the fixing of the third screw 140, the first mounting plate 1321 and the second mounting plate 1322 are close to each other, and the accommodation space of the housing is small, forcing the bracket 113 to be in a tightened state. When the third screw 140 is screwed, the elastic potential energy of the bracket 113 is released, and the shell is stretched apart, so that the first mounting plate 1321 and the second mounting plate 1322 are separated. At the same time, the bracket 113 drives the first friction unit 21 and the second friction unit 22 to separate. It is worth noting that the above-mentioned stent is not fully expanded after being released, but still maintains a helical shape.

In an optional embodiment, the above casing can also be replaced by a flexible rope. Tie the rope around the outside of the stand, thereby binding the stand in a taut state. Under the action of external force, the rope is loosened and the bracket is released, thereby driving the first friction unit and the second friction unit to separate.

It is worth noting that, in addition to the fastening form described in the above embodiments, the fixing assembly can be in the form of a combination of screws and internal threads, or a combination of screws and nuts, a combination of hooks and buckles, or a combination of hooks and elastic cords. form. As long as the functions of fixing and separation can be realized, all can be adopted, and this application does not make specific limitations. A trigger switch refers to a screw, nut, snap, or bungee cord.

Please continue to refer to FIG. 2 and FIG. 3. When preparing the first friction unit, the first friction unit 21 includes a stacked first electrode layer 212 and a first friction layer 213, and the second friction unit 22 includes a stacked second electrode layer 213. The electrode layer 222 and the second friction layer 223 . In an initial state, the first friction layer 213 is kept in contact with the second friction layer 223 . When the trigger mechanism drives the first friction unit 21 and the second friction unit 22 to separate, the first friction layer 213 is separated from the second friction layer 223 .

The first discharge tip 31 is connected to the first electrode layer 212 , and the second discharge tip 32 is connected to the second electrode layer 222 .

In order to ensure closer contact between the first friction layer and the second friction layer, the contact area is increased, thereby generating a higher voltage. The first rubbing unit further includes a first substrate, and the second rubbing unit further includes a second substrate. The first substrate 211 is connected to the first carrier 12 , and the first electrode layer 212 is disposed between the first substrate 211 and the first friction layer 213 . The second substrate 221 is connected to the second carrier 13 , and the second electrode layer 222 is disposed between the second substrate 221 and the second friction layer 223 . The first substrate 211 and the second substrate 221 are compressible, and under the fixing of the fixing component 14 , the first substrate 211 and the second substrate 221 are in a compressed state. Specifically, the first substrate 211 and the second substrate 221 can be made of elastic material, such as foam material, and the thickness of the first substrate 211 and the second substrate 221 can be 5mm-10mm, and can be 2mm-8mm after compression. Since the first substrate 211 and the second substrate 221 have elasticity, when the substrates are compressed, the first carrier and the second carrier can get closer, so that the compression elastic potential energy of the elastic member is greater. Thus, the elastic potential energy of the elastic member is converted into kinetic energy, so that the converted electric energy is higher.

At the moment of triggering of the trigger mechanism, the first substrate and the second substrate are still in a compressed state, and the first friction unit 21 and the second friction unit 22 are in a contact state. When the first friction unit 21 and the second friction unit 22 are separated, the elastic potential energy of the elastic member or bracket is converted into kinetic energy, so that the second friction unit 22 is separated from the first friction unit 21 at a certain speed. The separation speed may be 0.5-5 m/s. In actual situations, elastic members with different elastic coefficients can be selected according to actual needs, and different compression amounts can be set, which is not specifically limited in this application.

In an optional embodiment, the first friction layer is a positive dielectric material, and the second friction layer is a negative dielectric material. Or on the contrary, the first friction layer can also be made of negative dielectric material, and the second friction layer can be made of positive dielectric material.

The positive dielectric material can be nylon-66, nylon-11, polymethyl methacrylate, ethyl cellulose and the like. The negative dielectric material can be polydimethylsiloxane, perfluoroethylene propylene copolymer, polytetrafluoroethylene, polyvinyl chloride, polypropylene, and polyimide. The above materials can be selected according to actual needs, and are not specifically limited here.

The selection and matching of positive dielectric materials and negative dielectric materials can be but not limited to the following combinations: polydimethylsiloxane and polymethyl methacrylate; nylon-66 and polytetrafluoroethylene; Nylon-66 and polydimethylsiloxane; Nylon-66 and polyimide; Nylon-66 and polypropylene; Nylon-66 and perfluoroethylene propylene copolymer; Nylon-66 and polytetrafluoroethylene, nylon-66 11 with Teflon.

It is worth noting that the combinations given above are shown in the form of A-B, A may represent a positive dielectric material, and B may represent a negative dielectric material. Of course, in actual situations, the selection and matching of the negative dielectric material and the positive dielectric material are not limited to the ones listed above. In the triboelectric sequence, the two materials with a large difference in charge transfer amount can theoretically be used as materials for the first friction layer and the second friction layer.

The material of the first electrode layer 212 and the second electrode layer 222 may be copper.

The thicknesses of the first friction layer 213 and the second friction layer 223 are preferably 20 μm to 200 μm.

The working principle of the triboelectric nanogenerator is described below;

In the contact state, the first friction layer 213 made of positive dielectric material is in contact with the second friction layer 223 made of negative dielectric material. Under the triboelectric effect, charges can be transferred between the surfaces of the first friction layer 213 and the second friction layer 223 , so that the surface of the first friction layer 213 is positively charged, and the second friction layer 223 is negatively charged. When the second friction layer 223 moves away from the current position, due to electrostatic induction, in the open state, the first electrode layer 212 and the second electrode layer 222 form a potential difference. When the first friction layer 213 is completely separated from the second friction layer 223, When the voltage reaches a maximum, the discharge structure connected to the electrode layer undergoes electrostatic breakdown, thereby realizing a tip discharge.

It is worth noting that the mechanical trigger-based tip discharge device of the present application can manually trigger the above-mentioned trigger mechanism. The above-mentioned triggering mechanism can also be triggered by an external device, for example, the fastening component is externally connected to a mechanical structure to loosen screws, nuts, buckles, elastic cords, etc. Since the external device does not relate to the invention of the present application, the present application does not describe it here.

In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the orientation or positional relationship shown in the drawings, and are only In order to facilitate the description of the application and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (10)

1. A point discharge device based on mechanical triggering is characterized by comprising a triggering mechanism, a friction nano generator and a discharge structure, wherein,

the triggering mechanism is connected with the friction nano generator, the friction nano generator comprises a first friction unit and a second friction unit, and in an initial state, the triggering mechanism is used for enabling the first friction unit and the second friction unit to be in contact connection; in the case that the trigger mechanism is triggered, the trigger mechanism drives the first friction unit and the second friction unit to be separated so that an electric field is generated between the first friction unit and the second friction unit;

the discharge structure comprises a first discharge tip and a second discharge tip, a gap is reserved between the first discharge tip and the second discharge tip, the first discharge tip is positioned on the first friction unit, the second discharge tip is positioned on the second friction unit, and the first discharge tip and the second discharge tip are discharged under the action of the electric field;

alternatively, the discharge structure includes a first discharge tip located at the first friction unit, and the first discharge tip discharges under the action of the electric field.

2. The mechanical triggering-based point discharge device of claim 1, wherein the triggering mechanism comprises an elastic member, a first carrier and a second carrier, the first carrier and the second carrier are disposed opposite to each other, the first friction unit is mounted on the first carrier, the second friction unit is mounted on the second carrier, and the elastic member is disposed between the first carrier and the second carrier and is used for driving the second carrier to be separated from the first carrier.

3. The mechanical-trigger-based point discharge device of claim 2, wherein the trigger mechanism further comprises a securing assembly to which the first carrier and the second carrier are respectively coupled, the securing assembly for detachably coupling the second carrier to the first carrier.

4. A mechanically triggered point discharge device as claimed in claim 3 wherein the resilient member is a spring and the securing assembly comprises a screw and a nut, one end of the spring being connected to the first carrier and the other end being connected to the second carrier, the screw passing through the first carrier and the second carrier, the nut being threadably connected to the screw and the nut being located on a side of the second carrier facing away from the first carrier.

5. The mechanical trigger-based point discharge device of claim 3, wherein the elastic member is a spring hinge having one end connected to an edge of the first carrier and the other end connected to an edge of the second carrier, and the fixing assembly comprises a screw and a nut, the screw passes through the first carrier and the second carrier, the nut is in threaded connection with the screw, and the nut is located on a side of the second carrier facing away from the first carrier.

6. The mechanical triggering-based point discharge apparatus as recited in claim 1, wherein the triggering mechanism includes a supporter, the supporter is a spiral structure having elasticity, the first friction unit is disposed at a side of the supporter facing a center of the spiral structure, the second friction unit is disposed at a side of the supporter facing away from the first friction unit, and the supporter drives the first friction unit and the second friction unit to be separated in case the triggering mechanism is triggered.

7. The mechanical-trigger-based point discharge device of claim 6, wherein the trigger mechanism further comprises a housing having a receiving cavity, the bracket and the friction nano-generator being disposed in the receiving cavity, the housing having a resiliency comprising oppositely disposed first and second mounting plates, and a securing assembly for detachably connecting the first mounting plate to the second mounting plate.

8. The mechanical trigger-based point discharge device of any one of claims 1 to 7, wherein the first friction unit comprises a first electrode layer and a first friction layer which are stacked, and the second friction unit comprises a second electrode layer and a second friction layer which are stacked; in an initial state, the first friction layer is in contact connection with the second friction layer; the first friction layer is separated from the second friction layer when the trigger mechanism is triggered.

9. The mechanical-trigger-based point discharge device of claim 8, wherein the first friction layer is an electropositive dielectric material and the second friction layer is a electronegative dielectric material;

or the first friction layer is made of electronegative dielectric materials, and the second friction layer is made of electropositive dielectric materials.

10. The mechanical-trigger-based point discharge device of claim 9, wherein the first friction unit further comprises a first substrate, the second friction unit further comprises a second substrate, the first electrode layer is disposed between the first substrate and the first friction layer, the second electrode layer is disposed between the second substrate and the second friction layer, and the first substrate and the second substrate are compressible.

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