CN201421807Y - Flicking type explosion-proof and flame-proof safety surge absorption module - Google Patents

Abstract

The utility model relates to a bullet open type explosion-proof and flame-proof safety surge absorption module, the protection element comprises a base and an upper cover which is connected with the base, the base extends to one side of the upper cover and is provided with two opposite clapboards, a spacing space is formed between the clapboards, the surge absorption unit comprises a body, two connecting pins and a metal shrapnel, the body is arranged in the spacing space, the body is respectively provided with an electrode surface at two sides, each electrode surface is respectively provided with the connecting pin correspondingly, the connecting pins penetrate through the bottom of the base, one end of the metal shrapnel is welded on the electrode surface by a hot melting element, the other end is bent to cross the outside of the clapboard and then penetrate through the bottom of the base, therefore, the connecting pins and the metal shrapnel are respectively connected with a power supply and a load, and when the body is influenced by high temperature and is damaged and exploded, the protective element is integrally covered, and further fire accidents or damages caused by the splashing of explosive fragments can be prevented.

Description

Pop-up explosion-proof and flame-proof safety surge absorber module

technical field

The utility model relates to a safety surge absorbing module of a spring-open type explosion-proof and flame-proof.

Background technique

In order to avoid the impact of sudden surge (pulse voltage or pulse current) on electrical equipment in daily life, a surge absorber is usually added to the electrical circuit to protect the circuit. In the existing circuit, more A thermal fuse is connected to the circuit so that the surge absorber is affected by the surge and when its temperature is too high, the circuit can be disconnected to achieve the effect of protecting the equipment or the surge absorber.

However, although the above-mentioned thermal fuse can disconnect the circuit of the surge absorber, it cannot be disconnected and tripped in a short time, so that the surge absorber may explode or catch fire, thereby causing damage to the equipment or a fire Unexpectedly, so the existing surge absorber really needs to be improved.

Utility model content

The purpose of the utility model is to provide a safety surge absorbing module with pop-up explosion-proof and flame-proof.

The safety surge absorbing module of the pop-up type explosion-proof and flame-proof of the utility model includes a protection element and a surge absorbing unit, the protection element includes a base and an upper cover assembled with the base, the base Two relative partitions are extended to one side of the upper cover, and a limiting space is formed between the partitions, and the surge absorbing unit includes a body, two pins and a metal shrapnel, and the body is arranged on the In the limited space, at the same time, the body defines an electrode surface on its two sides, and each electrode surface is respectively connected with a pin, and the pin is passed through the bottom of the base, and the One end of the metal shrapnel is welded and fixed on the electrode surface by a hot-melt element, and the other end is bent across the outer side of the separator, and then pierced through the bottom of the base to come out.

Thus, the above-mentioned pins and the metal shrapnel can be connected to the power supply and the load respectively, and when the body is affected by a surge and the temperature is too high, the hot-melt element will melt and the metal shrapnel will be separated from the hot-melt element Fixed and bounced off the electrode surface to avoid high temperature from affecting the body, and if the body is damaged and exploded, it can also be covered by the protective element to prevent further damage caused by splashing of explosion fragments Fire accident or damage.

Description of drawings

Fig. 1 is an assembled perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of a preferred embodiment of the utility model.

Fig. 3 is a combined sectional view of a preferred embodiment of the present invention.

Fig. 4 is a schematic view of a preferred embodiment of the present invention, showing the state where the metal shrapnel is in contact with the electrode surface.

FIG. 5 is another schematic diagram of the use of the preferred embodiment of the present invention, showing the state that the metal shrapnel is separated from the electrode surface.

Fig. 6 is a combined sectional view of another preferred embodiment of the present invention.

FIG. 7 is a schematic view of another preferred embodiment of the present invention, showing the state where the metal shrapnel is in contact with the electrode surface.

FIG. 8 is another schematic view of another preferred embodiment of the present invention, showing the state that the metal shrapnel is separated from the electrode surface.

Detailed ways

First of all, please refer to Fig. 1 to Fig. 3, which are respectively a combined perspective view, an exploded perspective view and a combined sectional view of a preferred embodiment of the present invention, which include:

A protective element 10 includes a base 11 and an upper cover 12 assembled with the base 11, the base 11 is recessed with a plurality of slots 111 at intervals around its circumference, and the base 11 also faces Two corresponding partitions 112 are extended on one side of the upper cover 12, and a limiting space 113 is formed between these partitions 112. Edge 114, again, these partition boards 112 are recessed to form a groove 115 approximately in the middle respectively, and in addition, this upper cover 12 is respectively provided with these slots 111 and these flanges 114 positions corresponding to the latch 121 and positioning hole 122 , so that the upper cover 12 can be used to assemble and cover the base 11 .

A surge absorbing unit 20 has a main body 21, two pins 22 and a metal shrapnel 23, and the main body 21 is mainly made of zinc oxide material, and it is vertically arranged in the limiting space 113. At the same time, the The two sides of the main body 21 respectively define an electrode surface 211, and each electrode surface 211 is respectively connected with a pin 22, and these pins 22 pass through the bottom of the base 11, and at the same time, the main body 21 is surrounded by a An epoxy resin (Epoxy) 212 is coated around, and the epoxy resin 212 covers the upper section of these pins 22 at the same time, and the epoxy resin 212 has an insulating effect, and one end of the metal dome 23 is connected with a heat The melting element 30 is welded on the electrode surface 211, and the hot melting element 30 is solder, and the other end of the metal dome 30 is bent by the groove 115 and crosses the outer side of the separator 112, and then passes through the The base 11 protrudes from the bottom, and in this connection state, the metal dome 23 is in a first state.

Please refer to Fig. 4 and Fig. 5 at the same time, which are the schematic view of the preferred embodiment of the present invention and another schematic view of the use of the utility model. The safety surge absorbing module of the present utility model is connected by the metal shrapnel 23 and one of the pins 22. In a power supply P, at the same time, connect these pins 22 to a circuit load L; The feet 22 are mixed in, and the surge can be guided into the body 21 and generate heat energy, and when the heat energy generated by the body 21 is too high, the heat-melt element 30 welded on the electrode surface 211 will be heated and melted, and The metal dome 23 will break away from the hot-melt element 30 and be fixed, and bounce off to a predetermined position. At the same time, the metal dome 23 and the electrode surface 211 will be disconnected, and in this connection state, the metal dome 23 will be in a second state. And at this moment, the path of the input of the power supply P presents an open circuit state, so the effect of protecting the circuit load L can be achieved, and also because the thermal fuse element 30 has a low melting point, the metal shrapnel 23 can be quickly released in a short time. The electrode surface 211 bounces off to generate an open circuit. At the same time, because the partition plate 112 is arranged between the body 21 and the metal dome 23, it has the effect of isolating the arc. In addition, if the body 21 is affected by high temperature In the event of explosion damage, the body 21 can also be covered by the upper cover 12 as a whole, so as to prevent further fire accidents or damage caused by splashing of explosive fragments.

Please refer to FIG. 6 again, which is a combined cross-sectional view of another preferred embodiment of the present invention. This embodiment is similar to the above-mentioned preferred embodiment, and its main difference is that the surge absorbing unit 20 includes two bodies 21. Two pins 22 and two metal shrapnels 23, and these bodies 21 are stacked, and a common pin 213 is connected between them, and at the same time, the pins 22 are respectively connected to the two opposite sides of these bodies 21 , In addition, one end of these metal elastic pieces 23 is respectively welded and fixed on these electrode surfaces 211 by the thermal fusion element 30 , and the other end respectively straddles the separator 112 and penetrates through the base 11 to come out.

Please refer to Fig. 7 and Fig. 8 at the same time, which are respectively a schematic view of another preferred embodiment of the utility model and another schematic view of use. Phases are connected in parallel and mixed in, and the circuit load L is connected to these pins 22 and the common pin 213. This connection method in this embodiment enables these bodies 21 to increase the surge bearing capacity and reduce the suppression current; and when When the thermal energy generated by the main body 21 exceeds the melting point of the heat-melt element 30 , the metal elastic pieces 23 will also bounce off to the predetermined position on both sides, and the input path of the power supply P will be disconnected.

Claims (6)

1. A safety surge absorbing module of pop-up explosion-proof and flame-proof, characterized in that it mainly includes: A protective element includes a base and an upper cover assembled with the base, the base extends toward the upper cover to set two opposite partitions, and a limiting space is formed between the partitions; and , A surge absorbing unit includes at least one body, at least two pins and at least one metal shrapnel, and the body is arranged in the limited space, and two sides of the body respectively define an electrode surface, and each electrode surface is further A pin is respectively correspondingly connected, and the pin is pierced through the bottom of the base, and at the same time, the metal shrapnel has a first state and a second state, and in the first state, one end of the metal shrapnel is A heat-melt element is welded on the surface of the electrode, and the other end is bent across the outer side of the separator, and then pierced through the bottom of the base, and in the second state, the heat-melt element is melted , and the metal shrapnel will be detached from the hot-melt element and fixed, and disconnected from the electrode surface. 2. The spring-open explosion-proof and flame-proof safety surge absorbing module according to claim 1, wherein the main body is coated with an epoxy resin (Epoxy) around its periphery, and the epoxy resin is coated at the same time the upper segment of the pin. 3. The spring-open explosion-proof and flame-proof safety surge absorbing module according to claim 1, characterized in that a groove is recessed above the partition, and one end of the metal shrapnel is welded to the electrode surface, The other end spans the partition through the groove and passes through the base. 4. The pop-up explosion-proof and flame-proof safety surge absorbing module according to claim 1, characterized in that, the base is also provided with a plurality of slots at intervals around its circumference, and the partitions correspond to the A corresponding flange is provided above the slot, and the upper cover is respectively provided with a latch and a positioning hole corresponding to the position of the slot and the flange, so that the base and the upper cover are used for quick assembly and positioning . 5. The pop-up explosion-proof and flame-proof safety surge absorbing module according to claim 1, characterized in that the surge absorbing unit has two bodies and two metal shrapnels, and the bodies are stacked, and A common pin is connected therebetween, and at the same time, the pins are respectively connected to the electrode surfaces on two opposite sides of the body. In addition, one end of the metal shrapnel is welded to the electrodes on two opposite sides of the body. On the other side, the other end respectively straddles the partition and goes out through the bottom of the base. 6. The pop-up explosion-proof and flame-proof safety surge absorbing module according to claim 1, wherein the hot-melt element is solder.

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