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

Point discharge device based on mechanical trigger

Technical Field

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

Background

The point discharge belongs to corona discharge, and is a discharge phenomenon of sharp parts of objects under the action of a strong electric field. In a general electronic ignition device, a device for removing dust of an industrial chimney uses a principle of tip discharge. Usually, the tip discharge device needs an external power supply to supply power, and consumes more energy.

Disclosure of Invention

The application provides a point discharge device based on mechanical triggering, solves the problem that the point discharge device needs external power supply and consumes higher energy.

In order to achieve the above purpose, the tip discharging device based on mechanical triggering provided by the application comprises a triggering mechanism, a friction nano-generator and a discharging 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 keeping the first friction unit and the second friction unit 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. The tip discharge device based on mechanical triggering can be self-powered and can be applied to the scenes of electric activation, electric stimulation, electric erasure, electric breakdown and the like.

In an alternative technical scheme, the triggering mechanism comprises an elastic piece, a first carrier and a second carrier, the first carrier and the second carrier are oppositely arranged, the first friction unit is installed on the first carrier, the second friction unit is installed on the second carrier, and the elastic piece is arranged between the first carrier and the second carrier and used for driving the second carrier to be separated from the first carrier.

In an optional technical scheme, the triggering mechanism further comprises a fixing assembly, the first carrier and the second carrier are respectively connected with the fixing assembly, and the fixing assembly is used for detachably connecting the second carrier with the first carrier.

In an optional technical scheme, the elastic piece is a spring, the fixing component comprises a screw and a nut, one end of the spring is fixedly connected with the first carrier, the other end of the spring is propped against the second carrier under the action of the fixing component, the screw penetrates through the first carrier and the second carrier, the nut is in threaded connection with the screw, and the nut is located on one side, away from the first carrier, of the second carrier.

In an alternative technical scheme, the elastic piece is a spring hinge, one end of the spring hinge is connected to the edge of the first carrier, the other end of the spring hinge is connected to the edge of the second carrier, the fixing assembly comprises a screw and a nut, the screw penetrates through the first carrier and the second carrier, the nut is in threaded connection with the screw, and the nut is located on one side, away from the first carrier, of the second carrier.

In an alternative technical scheme, the triggering mechanism comprises a support, the support is of an elastic spiral structure, the first friction unit is arranged on one side, facing towards the center of the spiral structure, of the support, the second friction unit is arranged on one side, facing away from the first friction unit, of the support, and under the condition that the triggering mechanism is triggered, elastic potential energy of the support is released to drive the first friction unit to be separated from the second friction unit.

In an alternative technical scheme, the triggering mechanism further comprises a shell and a fixing assembly, wherein the shell is provided with a containing cavity, the support and the friction nano generator are arranged in the containing cavity, the shell is elastic and comprises a first mounting plate and a second mounting plate which are oppositely arranged, and the fixing assembly is used for detachably connecting the first mounting plate with the second mounting plate.

In an alternative technical scheme, the first friction unit comprises a first electrode layer and a first friction layer which are arranged in a stacked manner, and the second friction unit comprises a second electrode layer and a second friction layer which are arranged in a stacked manner; 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.

In an alternative technical scheme, the first friction layer is made of an electropositive dielectric material, and the second friction layer is made of 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.

In an optional technical scheme, the first friction unit further comprises a first substrate, the second friction unit further comprises a second substrate, the first electrode layer is arranged between the first substrate and 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.

Drawings

FIG. 1 is a schematic diagram of a mechanical trigger-based point discharge device according to an embodiment of the present application;

FIG. 2 is a schematic view of a mechanically triggered point discharge device according to another embodiment of the present application;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a schematic view of a mechanically triggered point discharge device according to yet another embodiment of the present application;

fig. 5 is a schematic structural view of a mechanically triggered point discharge device according to still another embodiment of the present application.

Reference numerals:

1-a trigger mechanism; 2-friction nano-generator; 3-a discharge structure; 21-a first friction unit; 22-a second friction unit; 31-a first discharge tip; 32-a second discharge tip; 111-elastic members; 12-a first carrier; 13-a second carrier; 14-fixing the assembly; 1411-screws; 1412-nuts; 1211-mounting posts; 1311-grooves; 112-spring hinges; 113-a bracket; 141-a second screw; 132-a housing; 1321-a first mounting plate; 1322-a second mounting plate; 140-third screw; 211-a first substrate; 212-a first electrode layer; 213-a first friction layer; 221-a second substrate; 222-a second electrode layer; 223-second friction layer.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

First, a friction nano-generator is described. Friction nano-generators (Triboelectric Nanogenerator, TENG) are a highly efficient energy source device that produces electrical signals by mechanically moving TENGs into and out of contact with each other. TENG has been considered a powerful power source since 2012, and has broad application prospects due to its outstanding characteristics of sustainability, high output performance, unrestricted material selection, and the like. TENG works on the principle of using friction layers of two different materials to contact and separate the potential difference generated across the electrodes.

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, which includes a trigger mechanism 1, a friction nano-generator 2, and a discharge structure 3. Wherein the triggering mechanism 1 is connected with the friction nano generator 2. The above-described friction nano-generator 2 includes a first friction unit 21 and a second friction unit 22. In the 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 remain in contact connection. In the case where the trigger mechanism 1 is triggered, the trigger mechanism 1 drives the first friction unit 21 and the second friction unit 22 to be separated so that an electric field is generated between the first friction unit 21 and the second friction unit 22. The discharge structure 3 includes a first discharge tip 31 and a second discharge tip 32, the first discharge tip 31 being located at the first friction unit 21, and the second discharge tip 32 being 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 are discharged by an electric field.

In the above-described embodiment, the trigger mechanism 1 is similar to a clamp that can change shape, and clamping and releasing of the object to be clamped, which refers to the first friction unit and the second friction unit that friction the nano-generator, is achieved by changing the shape. The triggering mechanism is triggered under the action of external force, namely, the shape of the triggering mechanism is changed under the action of external force. Specifically, in the initial state, the trigger mechanism 1 is in the first configuration, and the first friction unit 21 and the second friction unit 22 are restrained together so as to be in contact with each other, and no electric field is generated between the first friction unit 21 and the second friction unit 22. When the trigger mechanism 1 is triggered, the trigger mechanism 1 changes to the second configuration, and simultaneously drives the first friction unit 21 and the second friction unit 22 apart from each other. A gap starts to occur 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 with the friction nano-generator 2, equipotential surfaces of the first discharge tip 31 and the second discharge tip 32 are dense under the action of a strong electric field, and the electric field strength is increased rapidly, so that air nearby the discharge structure is ionized to generate gas discharge, and the phenomenon of tip discharge occurs. The tip discharge device based on mechanical triggering can be self-powered and can be applied to the scenes of electric activation, electric stimulation, electric erasure, electric breakdown and the like.

The first friction unit 21 and the second friction unit 22 may be separated in opposite directions, or may be separated by sliding or turning over.

In an alternative embodiment, the voltage of the electric field generated by the moment the second friction unit 22 is separated from the first friction unit 21 is preferably 800V to 2000V.

The tip mentioned in the above embodiment refers to a structure having a large surface curvature. The tip may be the end of a wire; the gap can be a sharp angle formed by the edges of the gap arranged on the surface of the object, and the gap can be one or more of an arc gap, a broken line gap or a polygonal gap, so long as a structure with large surface curvature can be formed, the discharge requirement of the application is met. The first discharge tip 31 and the second discharge tip 32 described above may be a needle-tip-shaped structure in the embodiment of the present application. The gap between the first discharge tip and the second discharge tip may be 0.2mm to 3.0mm.

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

Fig. 2 is a schematic structural view of a mechanically triggered point discharge device according to another embodiment of the present application, and fig. 3 is an exploded view of fig. 2. In an embodiment, the triggering mechanism 1 may include an elastic member 111, a first carrier 12, and a second carrier 13, as shown in fig. 2 and 3. The first carrier 12 and the second carrier 13 are disposed opposite to each other. The first friction unit 21 is mounted on the first carrier 12, the second friction unit 22 is mounted on the second carrier 13, and the elastic member 111 is disposed between the first carrier 12 and the second carrier 13 for driving the second carrier 13 to be separated from the first carrier 12.

In the specific selection of the carriers, the first carrier 12 and the second carrier 13 may have the same structure. The carrier can be a flat plate, a circular ring, a column body and the like. Preferably a flat panel, which is manufactured using 3D printing techniques. The two plates are disposed opposite to each other, and the first friction unit 21 and the second friction unit 22 are disposed on opposite sides of the two plates. The first carrier 12 and the second carrier 13 may be made of photo-curable resin, acryl, wood, or the like.

The triggering mechanism 1 may further include a fixing assembly 14, and the first carrier 12 and the second carrier 13 are respectively connected to the fixing assembly 14. The securing assembly 14 is used to removably attach the second carrier 13 to the first carrier 12. Specifically, the securing assembly 14 functions as a connection. In the initial state, the fixing member 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 remain in contact. The securing assembly 14 may have a trigger switch by which the securing assembly 14 is deformed, for example from a contracted configuration to an expanded configuration, to move the first carrier 12 and the second carrier 13 away from each other, thereby disengaging the first friction unit 21 and the second friction unit 22.

In a specific embodiment, the elastic member 111 may be a spring. The securing assembly may include a screw 1411 and a nut 1412, with one end of the spring coupled to the first carrier 12 and the other end coupled to the second carrier 13. The side of the first carrier 12 facing the second carrier 13 may be provided with a mounting post 1211, the mounting post 1211 has an external thread, and one end of the spring is sleeved on the outer wall of the mounting post 1211 and is in threaded connection with the mounting post. The side of the second carrier 13 facing the first carrier 12 is provided with a groove 1311, the groove 1311 corresponding to the position of the mounting post 1211. The other end of the spring is inserted into this recess 1311 against the second carrier 13. The first carrier 12 and the second carrier 13 are each provided with a through hole, a screw 1411 passes through the through holes of the first carrier 12 and the second carrier 13, a nut 1412 is screwed with the screw 1411 and the nut 1412 is located on the side of the second carrier 13 facing away from the first 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 it, and the spring is sprung to move the first carrier 12 and the second carrier 13 in opposite directions, thereby separating the first friction unit 21 and the second friction unit 22 to generate an electric field. The discharge structure 3 discharges under the influence of an electric field. The nut 1412 is a trigger switch of a trigger mechanism.

It should be noted that, the front projection of the first friction unit on the first carrier at least partially covers the first carrier, and the front projection of the second friction unit on the second carrier at least partially covers the second carrier. That is, the first carrier has an area larger than the first friction unit, and the second carrier has an area larger than the second friction unit. The edge area of the carrier may not cover the friction unit. The through holes of the first carrier and the second carrier may be located in the middle of the flat plate, or may be located in an edge region of the carrier. The first friction unit and the second friction unit may be provided with through holes for screws to pass through when located in the middle.

Fig. 4 is a schematic structural view of a mechanically triggered point discharge device according to another embodiment of the present application. In another embodiment, as shown in fig. 4, the elastic member is a spring hinge 112, and 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 passing through the through holes of the first and second carriers 12 and 13, the through hole of the second carrier 13 being provided with internal threads, the second screw 141 being screwed to the internal threads. Specifically, the screws may be disposed on opposite sides of the carrier from the spring hinge. The second screw is a trigger switch of the trigger mechanism.

Fig. 5 is a schematic structural view of a mechanically triggered point discharge device according to still another embodiment of the present application. In another embodiment, as shown in fig. 5, the triggering mechanism 1 may include a bracket 113, and the bracket 113 may have a spiral structure with elasticity. In particular, the support may be a flat spiral spring made of steel strip. The bracket has a center, the second friction unit 22 is arranged on one side of the plane scroll spring facing the center of the spiral structure, the first friction unit 21 is arranged on one side of the plane scroll spring facing away from the first friction unit, or the opposite arrangement is carried out, the first friction unit 21 is arranged on one side of the plane scroll spring facing the center of the spiral structure, and the second friction unit 22 is arranged on one side of the plane scroll spring facing away from the first friction unit. In the initial state, the bracket 113 is in a tightened state. When the trigger mechanism is triggered, the bracket 113 is deformed, and adjacent two spirals in the spiral structure are separated from each other, so that the first friction unit 21 and the second friction unit 22 are driven to be separated, thereby generating an electric field.

In this embodiment, the triggering mechanism may further include a housing 132 and a fixing assembly 14, the housing 132 has a ring shape with an accommodating space in the middle, and the bracket 113 and the friction nano-generator 2 are disposed in the accommodating space. The housing 132 may be a strip of tape bent, and the housing 132 has an opening with a first mounting plate 1321 and a second mounting plate 1322 disposed opposite to each other. The housing 132 has elasticity, and the housing 132 can be slightly deformed by external force. The first mounting plate 1321 and the second mounting plate 1322 each have a through hole, and the through hole of the second mounting plate 1322 has an internal thread. The securing assembly 14 is used to removably connect the first mounting plate 1321 to the second mounting plate 1322. The fixing assembly may be specifically 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, the first mounting plate 1321 and the second mounting plate 1322 are close to each other with the third screw 140 fixed, and the housing accommodating space is small, forcing the bracket 113 to be in the tightened state. The third screw 140 is screwed and the elastic potential energy of the bracket 113 is released to prop the housing open, thereby separating the first mounting plate 1321 and the second mounting plate 1322. At the same time, the bracket 113 drives the first friction unit 21 and the second friction unit 22 to be separated. It is worth noting that the stent is released and does not fully expand, but still maintains the helical shape.

In alternative embodiments, the housing may be replaced with a flexible cord. The rope is tied outside the bracket, so that the bracket is tied to be in a tightening state. Under the action of external force, the rope is loosened, and the bracket is released, so that the first friction unit and the second friction unit are driven to separate.

It should be noted that the fastening assembly may be in the form of a screw and internal thread combination, a screw and nut combination, a hook and buckle combination, or a hook and bungee cord combination, in addition to the fastening forms described in the above embodiments. As long as the fixing and separating functions can be achieved, any method can be adopted, and the application is not particularly limited. The trigger switch refers to a screw, a nut, a buckle or a bungee cord.

With continued reference to fig. 2 and 3, in the specific preparation of the first friction unit, the first friction unit 21 includes a first electrode layer 212 and a first friction layer 213 that are stacked, and the second friction unit 22 includes a second electrode layer 222 and a second friction layer 223 that are stacked. In the 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 of the first friction layer with 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 have compressibility, and the first substrate 211 and the second substrate 221 are in a compressed state when the fixing member 14 is fixed. Specifically, the first substrate 211 and the second substrate 221 may be made of an elastic material, such as a foam material, and the thickness of the first substrate 211 and the second substrate 221 may be 5mm to 10mm, and may be 2mm to 8mm after compression. Since the first substrate 211 and the second substrate 221 have elasticity, the first carrier and the second carrier can be closer together when the substrates are compressed, so that the compression elastic potential of the elastic member is greater. Thereby, the elastic potential energy of the elastic member is converted into kinetic energy, so that the higher the converted electric energy is.

At the moment of triggering of the triggering 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 the 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 to 5m/s. In practical situations, the elastic members with different elastic coefficients can be selected according to practical requirements, and different compression amounts are set.

In an alternative embodiment, the first friction layer is an electropositive dielectric material and the second friction layer is a electronegative dielectric material. Alternatively, the first friction layer may be a negative dielectric material, and the second friction layer may be a positive dielectric material.

The electropositive dielectric material may be nylon-66, nylon-11, polymethyl methacrylate, ethylcellulose, etc. The electronegative dielectric material can be polydimethylsiloxane, perfluoroethylene propylene copolymer, polytetrafluoroethylene, polyvinyl chloride, polypropylene, polyimide and the like. The above materials may be selected according to actual needs, and are not particularly limited herein.

The selection of the positive dielectric material and the negative dielectric material may be, but is 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-11 and polytetrafluoroethylene.

It should be noted that the above-mentioned combination is shown in a-B, where a may represent a positive dielectric material and B may represent a negative dielectric material. Of course, in practical cases, the choice of the electronegative dielectric material and the electropositive dielectric material is not limited to the above listed ones. In the triboelectric series, two materials with larger difference of charge transfer amounts can be theoretically used as manufacturing materials of 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 thickness of the first friction layer 213 and the second friction layer 223 is preferably 20 μm to 200 μm.

The working principle of the friction nano generator is described below;

in the contact state, the first friction layer 213 made of the electropositive dielectric material is brought into contact with the second friction layer 223 made of the electronegative dielectric material. Under the triboelectric effect, charge may be transferred between the surfaces of the first friction layer 213 and the second friction layer 223, such 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, the first electrode layer 212 and the second electrode layer 222 form a potential difference in an open state due to electrostatic induction, and when the first friction layer 213 is completely separated from the second friction layer 223, a voltage reaches a maximum, and at this time, a discharge structure connected to the electrode layer is electrostatically broken down, thereby realizing a tip discharge.

It should be noted that, the tip discharging device based on mechanical triggering can trigger the triggering mechanism manually. The triggering mechanism can also be triggered by external equipment, for example, the fastening component is externally connected with a mechanical structure, so that loosening of screws, nuts, buckles, elastic ropes and the like is realized. Since the external device is not related to the invention point of the present application, the present application is not described in detail herein.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such 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.

Images