CN113124713A

CN113124713A - Electronic firecracker and electric energy firecracker unit thereof

Info

Publication number: CN113124713A
Application number: CN202010039796.7A
Authority: CN
Inventors: 汤国凯; 冷菱菱; 曾院辉
Original assignee: Hunan Shanghua Technology Co ltd
Current assignee: Hunan Shanghua Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2021-07-16

Abstract

The invention relates to an electronic firecracker and an electric firecracker unit thereof. The firecracker main body contains electrolyte. Moreover, the electrolyte in the firecracker main body can be electrolyzed to generate gas by electrifying. Along with the continuous electrolysis process, gas is continuously accumulated in the shell to form a closed high-pressure environment. When the air pressure exceeds the bearing limit of the shell, the shell can be broken, and the high-pressure air is released to the outside instantly to produce the explosion effect similar to that of the traditional firecracker. The electric energy firecracker unit does not need gunpowder, and does not need to be burnt in the explosion process, so the electric energy firecracker unit is safe and environment-friendly. Moreover, the electric energy firecracker unit can not only produce sound when exploding, but also the shell can scatter in the explosion, so that the detonation process of the traditional firecracker can be simulated more truly. Therefore, the electronic firecracker and the electric firecracker unit thereof can generate the atmosphere close to the traditional firecracker, and the user experience is improved.

Description

Electronic firecracker and electric energy firecracker unit thereof

Technical Field

The invention relates to the technical field of festival articles, in particular to an electronic firecracker and an electric firecracker unit thereof.

Background

Firecrackers are important articles for creating atmosphere in festivals and celebrations in China and even people all over the world, and the demand and sales of firecrackers are continuously increased in recent years. The traditional firecrackers are made of gunpowder, are inflammable and explosive, and are easy to cause fire due to sparks released during firing. Meanwhile, after the traditional firecracker is combusted and exploded, a large amount of smoke and dust are generated, and a large amount of sulfide and oxynitride are generated at the same time, so that serious environmental pollution is caused. Therefore, electronic firecrackers have come into operation due to safety and environmental protection.

At present, most of electronic firecrackers on the market are sound-type products, and the sound and light effect of the traditional firecrackers during explosion is simulated by using an electronic technology. However, the electronic firecracker has poor simulation effect and low reliability. Most importantly, due to the fact that a real explosion process does not exist, fragments scattered on the ground after the traditional firecracker explodes cannot be simulated, so that the evil dispelling and festive atmosphere of the traditional firecracker cannot be generated, the customer acceptance is low, and the user experience is poor.

Disclosure of Invention

Therefore, it is necessary to provide an electronic firecracker and an electric energy firecracker unit thereof, which can improve user experience, aiming at the problem of poor user experience of the existing electronic firecracker.

An electrical energy firecracker unit comprising:

a closed housing;

the firecracker main body is accommodated in the shell, and the firecracker main body contains electrolyte;

and the anode pin and the cathode pin penetrate through the side wall of the shell and are electrically connected with the firecracker main body, and when the anode pin and the cathode pin are electrified, the electrolyte can be electrolyzed to generate gas.

In one embodiment, the outer wall of the shell is wrapped with a wrapping layer of a predetermined color.

In one embodiment, the firecracker main body comprises a positive plate, a negative plate and a base material, the positive pin and the negative pin are respectively electrically connected with the positive plate and the negative plate, the base material is located between the positive plate and the negative plate, and the electrolyte is impregnated in the base material.

In one embodiment, the positive electrode sheet, the negative electrode sheet, and the base material are stacked on each other and wound.

In one embodiment, the firecracker main body further comprises a fixed inner cylinder, and the wound positive electrode sheet, the wound negative electrode sheet and the base material are sleeved with the fixed inner cylinder.

In one embodiment, the positive plate is a metal conductive plate, and the negative plate is a non-metal conductive plate.

In one embodiment, the substrate and the electrolyte are red.

In one embodiment, the electrolyte comprises water, an organic solvent, an antioxidant, and a solute, and the electrolyte is acidic.

In one embodiment, the electrolyte includes a sulfur flavor additive.

An electronic firecracker comprising:

a cable;

a plurality of the electric energy firecracker units as described in any one of the above preferred embodiments, a plurality of the electric energy firecracker units are connected in series and/or in parallel through the cables.

The electronic firecracker and the electric firecracker unit thereof can lead the electrolyte in the firecracker main body to be electrolyzed to generate gas by electrifying. Along with the continuous electrolysis process, gas is continuously accumulated in the shell to form a closed high-pressure environment. When the air pressure exceeds the bearing limit of the shell, the shell can be broken, and the high-pressure air is released to the outside instantly to produce the explosion effect similar to that of the traditional firecracker. The electric energy firecracker unit does not need gunpowder, and does not need to be burnt in the explosion process, so the electric energy firecracker unit is safe and environment-friendly. Moreover, the electric energy firecracker unit can not only produce sound when exploding, but also the shell can scatter in the explosion, so that the detonation process of the traditional firecracker can be simulated more truly. Therefore, the electronic firecracker and the electric firecracker unit thereof can generate the atmosphere close to the traditional firecracker, and the user experience is improved.

Drawings

FIG. 1 is a schematic structural diagram of an electric energy firecracker unit in a preferred embodiment of the invention;

FIG. 2 is a schematic structural diagram of the firecracker main body when the electric energy firecracker unit shown in FIG. 1 is not electrified;

FIG. 3 is a schematic structural diagram of the firecracker main body when the electric energy firecracker unit shown in FIG. 1 is electrified.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides an electric energy firecracker unit 100. The electric energy firecracker unit 100 is equivalent to a firecracker monomer of a traditional powder firecracker, and can explode after being electrified. In addition, the invention also provides an electronic firecracker (not shown). The electronic firecracker comprises a cable (not shown) and a plurality of electric energy firecracker units 100, and the plurality of electric energy firecracker units 100 are connected in series and/or in parallel through the cable.

Specifically, a plurality of electric energy firecracker units 100 can be connected in series in sequence, or a plurality of parallel units can be obtained by connecting a preset number of electric energy firecracker units 100 in parallel, and then the plurality of parallel units are connected in series in sequence. The delay control of the plurality of electric energy firecracker units 100 can be realized by sampling the voltage at two ends of the electric energy firecracker power supply line or the current in the power supply loop and supplying power to the downward parallel units step by step according to the program design in a constant current or constant voltage power supply mode through the power supply control circuit, so that the plurality of electric energy firecracker units 100 can be detonated according to the preset sequence.

In this embodiment, the electronic firecracker further comprises a power controller (not shown) connected in series with the cable. The power supply controller is used for realizing power supply control of each electric energy firecracker unit 100.

Referring to fig. 2, the electric energy firecracker unit 100 in the preferred embodiment of the invention includes a casing 110, a firecracker main body 120, a positive electrode pin 130 and a negative electrode pin 140.

The housing 110 has a sealed structure. The housing 110 may be made of aluminum alloy or other metal or non-metal materials meeting the requirement of mechanical strength, and is generally cylindrical. The housing 110 may be integrally formed or may be formed by splicing a plurality of separate sections.

In the present embodiment, the housing 110 includes a housing 111 and a rubber stopper 113. The housing 111 is a hollow cylindrical structure with one open end, and the rubber stopper 113 blocks the opening of the housing 111.

The rubber stopper 113 is generally formed of rubber having elasticity, and can be held in the opening of the housing 111 by being deformed by pressing. By such arrangement, on one hand, the electric energy firecracker unit 100 can be conveniently assembled; on the other hand, when the electric power firecracker unit 100 explodes, the housing 111 can be smoothly separated from the rubber plug 113, so that the housing 110 is cracked, thereby exhibiting an explosion effect.

In this embodiment, the outer wall of the housing 110 is covered with a wrapping layer 150 of a predetermined color. In particular, the wrapping layer 150 may be a plastic or paper film that is torn when the housing 110 is ruptured. To meet the demand of people for celebration atmosphere, the wrapping layer 150 is generally red. Thus, the effect of scattering full red scraps can be brought after the electronic firecracker is exploded.

The firecracker main body 120 is housed in the case 110. Further, the firecracker main body 120 contains an electrolyte (not shown). The electrolyte may be common water or a solute-spiked solution. After the firecracker main body 120 is electrified, the electrolyte can be electrolyzed to generate gas. The gas may be hydrogen, oxygen, or other environmentally benign gas.

The positive pin 130 and the negative pin 140 are disposed through the sidewall of the housing 110 and electrically connected to the firecracker body 120. Specifically, the positive pin 130 and the negative pin 140 are inserted through the rubber stopper 113. The positive pin 130 and the negative pin 140 may be copper pillars or other conductive pillar structures. In the manufacturing process of the electronic firecracker, a connecting seat (not shown) with a socket can be connected to the cable, and the positive pin 130 and the negative pin 140 can be directly inserted into the connecting seat to realize the electrical connection with the cable. The lengths of the positive pin 130 and the negative pin 140 may be the same, or may be set to be one long or one short for distinction. In addition, the positive electrode pin 130 and the negative electrode pin 140 may be bent to be distinguished.

When the positive electrode pin 130 and the negative electrode pin 140 are powered on, the electrolyte can be electrolyzed. As the electrolysis process continues, gas will build up within the housing 110, creating a closed high pressure environment. When the pressure exceeds the loading limit of the casing 110, the casing 110 will be broken, and the high pressure gas is released to the outside instantaneously to produce the explosion effect similar to that of the conventional firecracker. It can be seen that the above-described power firecracker unit 100 realizes explosion without relying on the burning of gunpowder. Compared with the traditional gunpowder firecracker, the electronic firecracker at least has the following advantages:

1. because the explosion process of the electric energy firecracker unit 100 does not depend on gunpowder and the explosion process does not need to be burnt, the explosion risk does not exist in the production, transportation and storage processes, and fire disasters cannot be caused in the firing process. In addition, each electric energy firecracker unit 100 is required to be detonated by applying external electric energy, so that the electric firecracker units 100 cannot be detonated mutually to cause chain explosion accidents. Therefore, the safety is obviously improved;

2. because the combustion process is not involved, no toxic and harmful gas is generated when the electric firecracker unit is detonated, the environment is not polluted, and the electric firecracker unit is more environment-friendly.

3. Because the electric energy firecracker unit 100 does not contain gunpowder, the electric energy firecracker unit can be produced in batches by adopting a mechanical production line, and the purposes of reducing the labor intensity of workers and improving the consistency and the production efficiency of products can be achieved.

In addition, since the electric power firecracker unit 100 has a real explosion process, and the case 110 may be scattered during the explosion process. Therefore, compared with the existing electronic firecracker which only can realize sound and light simulation, the electronic firecracker and electric energy firecracker unit 100 can generate the atmosphere close to the traditional gunpowder firecracker, and the user experience is improved.

In the firecracker body 120, the electrolyte can be present in free liquid form and can also be adsorbed in a corresponding carrier. Specifically, in the present embodiment, the firecracker main body 120 includes a positive plate, a negative plate 123 and a base material 125, the positive pin 130 and the negative pin 140 are electrically connected to the positive plate 121 and the negative plate 123, respectively, the base material 125 is located between the positive plate 121 and the negative plate 123, and the base material 125 is impregnated with the electrolyte.

Both the positive electrode tab 121 and the negative electrode tab 123 are conductive. When the positive pin 130 and the negative pin 140 are energized, a voltage difference is formed between the positive plate 121 and the negative plate 123, so that the electrolyte between the positive plate 121 and the negative plate 123 is electrolyzed. In order to enable the firecracker main body 120 to be smoothly separated from the positive electrode pin 130 and the negative electrode pin 140 in the explosion process, the positive electrode pin 130 and the negative electrode pin 140 can be respectively connected with the positive electrode sheet 121 and the negative electrode sheet 123 in a riveting mode.

The substrate 125 may have a sheet-like structure formed of an insulating material such as wet nonwoven fabric, manila paper, kraft paper, cloth, or a polymer film. The prepared electrolyte solution may be coated or impregnated on the substrate 125, or the monomers constituting the electrolyte solution may be sequentially coated or impregnated on the substrate 125. Since the electrolyte is absorbed by the base material 125, no free liquid exists in the firecracker main body 120, so that liquid leakage can be effectively prevented, and the transportation and storage of the electric energy firecracker unit 100 are facilitated.

It should be noted that in other embodiments, the electrolyte may be stored in a sealed pouch in a free liquid form, and the pouch may serve as a container for the electrolysis reaction. The pouch has elasticity and is continuously expanded with the generation of gas until it is finally ruptured together with the case 110.

The firecracker body 120 may be torn during the explosion process. The substrate 125 and electrolyte may also be pre-dyed red to obtain a better happy atmosphere. Therefore, the red chips scattered during the explosion of the firecracker body 120 are closer to the conventional gunpowder firecracker.

In addition, by adjusting the length, width and thickness of the positive plate 121 and the negative plate 123, the control of the voltage and current between the positive plate 121 and the negative plate 123 can be realized, so as to control the speed of gas formation in the electric energy firecracker main body 120, and finally achieve the effect of adjusting the explosion time delay, so as to meet the requirement of explosion delay control on a single electric energy firecracker unit 100 in practical application, and combine different explosion effects.

Further, in the present embodiment, the positive electrode sheet 121, the negative electrode sheet 123, and the base material 125 are stacked on each other and wound.

By winding, the surface area per unit volume of the positive electrode sheet 121, the negative electrode sheet 123, and the substrate 125 can be significantly increased. Therefore, the contact area between the positive electrode sheet 121 and the negative electrode sheet 123 and the substrate 125 is increased, which is advantageous for generating sufficient gas by electrolyzing the electrolyte solution impregnated in the substrate 125.

Further, in this embodiment, the firecracker main body 120 further includes a fixed inner cylinder 127, and the wound positive electrode sheet 121, negative electrode sheet 123 and base material 125 are sleeved with the fixed inner cylinder 127.

Specifically, the fixed inner cylinder 127 may be molded from an insulating film material such as resin or plastic. The fixed inner cylinder 127 is used for shaping the wound positive electrode sheet 121, negative electrode sheet 123 and base material 125. When the electric energy firecracker unit 100 is manufactured, the wound positive electrode sheet 121, negative electrode sheet 123 and base material 125 can be firstly arranged in the fixed inner cylinder 127, and then the fixed inner cylinder 127 is integrally arranged in the shell 110, so that the assembly is convenient.

Further, in the present embodiment, the positive electrode tab 121 is a metal conductive tab, and the negative electrode tab 123 is a non-metal conductive tab.

The metal conductive sheet may be formed of metal aluminum or metal platinum having a high purity (generally 99% or higher), and the non-metal conductive sheet may be formed by coating or impregnating a sheet-like insulator such as manila paper, kraft paper, cloth, or a polymer film with a conductive polymer material. Moreover, in order to ensure that the firecracker main body 120 can be smoothly separated from the positive pin 130 during explosion, the metal conducting strip adopts an ultra-thin design.

When the positive pin 130 and the negative pin 140 are powered on, the electrochemical reaction process in the firecracker main body 120 is as follows:

as shown in fig. 3, after the current is applied, a potential difference is formed between the positive electrode tab 121 and the negative electrode tab 123, and electrons of the positive electrode tab 121 flow to the negative electrode tab 123 through the internal electrolyte to form a leakage current; water molecules in the electrolyte are decomposed into hydrogen ions and oxygen ions under the action of current, and the oxygen ions are attached to the positive electrode sheet 121 to form a metal oxide film layer 1212; the hydrogen ions collected in the metal oxide film layer 1212 will migrate and eventually be converted into hydrogen gas.

As shown in fig. 2, before the power is not supplied, the metal oxide film layer 1212 is not formed on the surface of the positive electrode sheet 121 (metal conductive sheet) inside the firecracker main body 120. Therefore, the current in the interior of the firecracker main body 120 at the moment of energization is large. After the current is applied, a metal oxide film layer 1212 is rapidly formed on the surface of the positive electrode tab 121 (metal conductive tab) to block the current from passing through. Therefore, as the energization time is prolonged, the current in the firecracker main body 120 drops rapidly (to below 1/10 of the initial value). That is, except for the moment of starting, the current required by the input cable in the process of firing the electric firecracker unit 100 is limited to a lower level, so the requirement of the electronic firecracker on the power supply is reduced, and the popularization is possible.

On the other hand, the metal conducting strip and the nonmetal conducting strip are not in direct contact with each other to conduct electricity. Therefore, even if the positive electrode tab 121 and the negative electrode tab 123 collide with each other by the action of the explosion shock wave, the two tabs are not electrically connected to each other, and the electronic firecracker is not short-circuited.

The positive electrode sheet 121, the negative electrode sheet 123, and the base material 125 are stacked and wound. Therefore, the insulating substrate 125 may wrap the positive electrode tab 121 or the negative electrode tab 123, thereby achieving effective separation of the positive electrode tab 121 from the negative electrode tab 123.

In addition, in order to prevent the short circuit of the electronic firecracker caused by the collision of the positive pin 130 and the negative pin 140 in the explosion process, the distance between the positive pin 130 and the negative pin 140 can be increased, and the length of the positive pin 130 and the negative pin 140 extending into the shell 110 can be shortened.

In this embodiment, the substrate 125 is a plurality of layers, and at least one of the layers of the substrate 125 is not impregnated with the electrolyte. Specifically, the substrate 125 having a multi-layer structure may enhance the adsorption capacity to the electrolyte, thereby ensuring that the electrolyte impregnated in the substrate 125 can generate sufficient gas. In addition, the base material 125 not impregnated with the electrolyte can effectively separate the positive electrode tab 121 and the negative electrode tab 123, thereby further preventing the short circuit from occurring inside the firecracker main body 120.

As shown in fig. 2 and 3, the substrate 125 has three layers, namely two substrates 125A at two sides and a substrate 125B in the middle. The electrolyte solution is impregnated into the base material 125A on both sides, and the base material 125B in the middle is not impregnated with the electrolyte solution.

In the present embodiment, the electrolyte includes water, an organic solvent, an antioxidant and a solute, and the electrolyte is acidic.

The solute includes an acid component and an alkali component, and the molar ratio of the two components is calculated so that the solute is dissolved in an organic solvent so that the acid component is excessive, thereby obtaining an acidic electrolyte solution. The electrolyte can have better conductive capability and impregnation capability by the configuration. In addition, the electrolyte also has a healing capability against the metal oxide film layer 1212 on the surface of the positive electrode tab 121. That is, when the metal oxide film layer 1212 is partially damaged, the damaged portion can be repaired quickly by the free ions in the electrolyte, so as to maintain the low current state in the electric energy firecracker unit 100. Moreover, the electrolyte has chemical stability with the metal oxide film layer 1212 and the case 110, and does not cause corrosion.

The solute may be one or a mixture of more, and the type of additive may also affect the rate of electrolysis of the electrolyte. Therefore, by adjusting the type and proportion of the solute and the type of the additive, the electrolysis speed of the electrolyte can be adjusted, thereby adjusting the explosion time of the electric energy firecracker unit 100.

Specifically, in this embodiment, the solute includes any one or more of organic sulfonic acid, fluorinated carboxylic acid, boron complex, halogenated inorganic acid, and ammonium borate. Further, the organic solvent comprises one or more of ethylene glycol, dimethyl formamide and gamma butyrolactone.

The antioxidant comprises one or more of phenol, methyl phenol, ethyl phenol, pyrogallol, hydroquinone, catechol, tocopherol, butyl hydroxy anisole, dibutyl hydroxy toluene and benzotriazole.

It should be noted that the form of the electrolyte is not limited to the above one as long as gas can be generated when the firecracker main body 120 is energized. For example, the electrolyte may be pure water. In this case, the detonation of the electric power firecracker unit 100 is a process of electrolyzing water in the firecracker main body 120.

Corresponding additives can also be added to the electrolyte for other purposes.

Specifically, in this embodiment, the electrolyte further includes one or more of phosphoric acid and/or phosphate for preventing hydration of the aluminum oxide film, dinitrobenzene for absorbing hydrogen, and ethylene oxide for increasing the sparking voltage of the electrolyte. Phosphoric acid and/or phosphate can well protect the metal oxide film layer 1212, and dinitrobenzene can accelerate the generation of hydrogen.

Moreover, the detonation time and the components of the electric energy firecracker unit 100 can be adjusted by adjusting the mixture ratio of the organic solvent and the solute and the components of the additives,

Further, in this embodiment, the electrolyte includes a sulfur flavor additive. Therefore, the electric energy firecracker unit 100 can generate sulfur smell after explosion, which is closer to the explosion process of the traditional gunpowder firecracker, and the user experience is further improved.

The electronic firecracker and the electric energy firecracker unit 100 can be powered on to electrolyze the electrolyte in the firecracker main body 120 to generate gas. As the electrolysis process continues, gas will build up within the housing 110, creating a closed high pressure environment. When the pressure exceeds the loading limit of the casing 110, the casing 110 will be broken, and the high pressure gas is released to the outside instantaneously to produce the explosion effect similar to that of the conventional firecracker. The electric energy firecracker unit 100 does not need gunpowder, and the explosion process does not need to be burnt, so the electric firecracker unit is safe and environment-friendly. Moreover, the electric energy firecracker unit 100 can not only produce sound when exploding, but also the shell 110 can scatter in the explosion, so that the detonation process of the traditional firecracker can be simulated more truly. Therefore, the electronic firecracker and the electric firecracker unit 100 can generate an atmosphere close to that of the traditional firecracker, and user experience is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrical energy firecracker unit, comprising:

a closed housing;

2. The electrical energy firecracker unit of claim 1 wherein the outer wall of the housing is wrapped with a predetermined color wrap.

3. The electric energy firecracker unit as claimed in claim 1, wherein the firecracker main body comprises a positive plate, a negative plate and a base material, the positive pin and the negative pin are respectively electrically connected with the positive plate and the negative plate, the base material is located between the positive plate and the negative plate, and the electrolyte is impregnated in the base material.

4. The electric energy firecracker unit according to claim 3, wherein the positive electrode sheet, the negative electrode sheet and the base material are stacked and wound around each other.

5. The electric energy firecracker unit as claimed in claim 4, wherein the firecracker main body further comprises a fixed inner cylinder, and the fixed inner cylinder is sleeved on the wound positive pole piece, the wound negative pole piece and the base material.

6. The electrical energy firecracker unit as claimed in claim 3, wherein the positive plate is a metallic conductive plate and the negative plate is a non-metallic conductive plate.

7. The electrical energy firecracker unit of claim 3 wherein the substrate and the electrolyte are red.

8. The electrical energy firecracker unit of claim 1 wherein the electrolyte comprises water, an organic solvent, an antioxidant and a solute, and the electrolyte is acidic.

9. The electrical energy firecracker unit of claim 1 wherein the electrolyte includes a sulfur flavor additive.

10. An electronic firecracker, comprising:

a cable;

a plurality of power firecracker units as claimed in any one of the preceding claims 1 to 9, the plurality of power firecracker units being connected in series and/or in parallel by the cable.