Power transformation box with flame extinguishing function

Abstract

The utility model provides a power transformation box with a flame extinguishing function, which relates to the field of power transformation boxes, and comprises a box body, a plurality of components are arranged in the box body, the components are provided with protective covers, flame extinguishing patches are arranged in the protective covers and right above connection ports of the components and cables, and the flame extinguishing patches are provided with flame extinguishing holes. And the flame extinguishing patches are prepared by wrapping flame extinguishing microcapsules with flame-retardant hot melt adhesive. The protection cover is arranged on the components in the box body, the flame extinguishing patch is arranged above the protection cover, the flame extinguishing microcapsule is arranged in the flame extinguishing patch, the flame extinguishing microcapsule can be broken after being heated to release the fire extinguishing agent to extinguish fire, self-excitation type fire extinguishing is achieved, flames can be extinguished at the first time when a fire breaks out, the use cost is low, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of transformer boxes, in particular to a transformer box with a flame extinguishing function. Background Art

[0002] The transformer box contains various components, all of which need to be connected to cables, making it the most likely place for fire to occur due to short circuits or other reasons. The existing fire prevention and extinguishing methods all use canned fire extinguishing agents connected to the transformer box through pipes and use sensors to sense whether a fire has occurred to activate the fire extinguishing agent. This type of equipment is not only costly and complex to install, but also needs to be restricted by sensors. Once the sensor fails, the equipment becomes useless and cannot complete the fire extinguishing work. Utility Model Content

[0003] The utility model provides a transformer box with a flame extinguishing function, which can timely extinguish the flame when a cable catches fire, thereby effectively reducing the occurrence of cable fire accidents.

[0004] The technical solution of the utility model is achieved as follows: a transformer box with a flame extinguishing function, comprising a box body, wherein a plurality of components are arranged inside the box body, wherein the components are provided with a protective cover, wherein a flame extinguishing patch is arranged in the protective cover just above the connection port between the components and the cable, wherein the flame extinguishing patch is made of flame extinguishing microcapsules wrapped with flame retardant hot melt adhesive; the distance between the flame extinguishing patch and the components is 2-10 cm.

[0005] Furthermore, at least one side surface of the protective cover is provided with a socket, and a plug plate can be inserted into the interior of the protective cover through the socket and fixed on the protective cover, and the flame extinguishing patch is fixed on the plug plate.

[0006] Furthermore, the protective cover is fixed on the box body or on a fixing plate inside the box body for fixing the components.

[0007] Furthermore, a hook is fixed on the box body, and the protective cover is fixed on the box body through the hook.

[0008] Furthermore, the protective cover is made of transparent material.

[0009] Furthermore, a plurality of heat dissipation holes are arranged around the protective cover.

[0010] Furthermore, the heat dissipation holes are transversely rectangular, and a plurality of the heat dissipation holes are vertically evenly spaced.

[0011] Furthermore, an insert plate is inserted from one side of the protective cover to the other side, and the flame extinguishing patch is arranged on the lower surface of the insert plate.

[0012] Furthermore, the components are one or more of a transformer, a circuit breaker, a disconnector, a mutual inductor, a capacitor, a fuse, a contactor, a relay, an electric meter, and a battery.

[0013] The beneficial effects of the utility model are as follows: a protective cover is provided on the components in the box, and a flame extinguishing patch is provided above the protective cover. The flame extinguishing patch contains flame extinguishing microcapsules. The flame extinguishing microcapsules will burst after being heated to release a fire extinguishing agent to extinguish the fire. This is a self-excitation fire extinguishing method, which can extinguish the flame at the first time of the fire, and has low use cost and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 A three-dimensional diagram of a structure of a protective cover;

[0017] Figure 3 A three-dimensional diagram of a second structure of the protective cover.

[0018] In the figure: 1-box, 2-components, 3-flame extinguishing patch, 4-protective cover, 5-heat fan hole, 6-socket, 7-plug board, 8-hook. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1 A transformer box with a flame extinguishing function includes a box body 1, a plurality of components 2 are installed in the box body 1, a hook 8 is fixed on the box body 1, a protective cover 4 is fixed to the box body 1 through the hook 8, the protective cover 4 covers the components 2, and a flame extinguishing patch 3 is arranged in the protective cover 4 and is located directly above the component 2 and the cable connection port.

[0022] The protective cover 4 can protect a single component 2, or it can protect multiple components 2 at the same time according to the distribution of the components 2. At least one flame extinguishing patch 3 is installed on the top of each component 2 in the protective cover 4. A number of heat dissipation holes 5 are arranged around the protective cover 4. The distance between the flame extinguishing patch 3 and the component 2 is 2-10cm. The closer the distance between the flame extinguishing patch 3 and the component 2, the better the flame extinguishing effect, but it cannot be too close, because the temperature at the cable connection is generally high, and sometimes it will suddenly rise due to line reasons, but it will not catch fire, which will cause a misunderstanding. The protective cover is made of transparent material, which is convenient for normal inspection.

[0023] The flame extinguishing patch 3 is made of flame extinguishing microcapsules wrapped with flame retardant hot melt adhesive. The flame extinguishing microcapsules contain fire extinguishing agents. When the flame extinguishing microcapsules are heated above 100°C, their capsule shells will automatically rupture and release the fire extinguishing agents. Therefore, the flame extinguishing capsules are self-excited fire extinguishing and do not need to rely on other devices for fire extinguishing. The fire extinguishing agent is one or more of halogenated hydrocarbons, heptafluoropropane, or perfluorohexanone.

[0024] The flame extinguishing patch 3 can be glued to the protective cover, can also be adsorbed on the protective cover by a magnet, and can also be fixed by bolts through an opening.

[0025] Furthermore, the component 2 is one or more of a transformer, a circuit breaker, an isolating switch, a mutual inductor, a capacitor, a fuse, a contactor, a relay, an electric meter, and a battery. The component 2 may also be other equipment located in the transformer box.

[0026] Embodiment 2:

[0027] A further improvement of the first embodiment is that, Figure 2 As shown, a socket 6 is provided on one side of the protective cover 4 near the transformer box door, and an L-shaped plug board 7 can be inserted into the protective cover 4 through the socket 6 and fixed on the protective cover 4, and the flame extinguishing patch 3 is fixed on the plug board 7. By providing the plug board, the flame extinguishing patch 3 can be replaced more conveniently.

[0028] Furthermore, the sockets 6 are located on two side surfaces of the protective cover 4 , and the plugboard 7 is fixed to the box body 1 through the sockets 6 .

[0029] Embodiment three:

[0030] A further improvement of the first embodiment is that, referring to Figure 3 The heat dissipation holes 5 are horizontally rectangular, and a plurality of heat dissipation holes 5 are vertically evenly spaced. A plug-in board 7 is inserted from the heat dissipation holes 5 on one side of the protective cover 4 to the heat dissipation holes 5 on the other side, and the fire extinguishing patch 3 is arranged on the lower surface of the plug-in board 7. By installing the fire extinguishing patch 3 through the heat dissipation holes, the distance between the fire extinguishing patch 3 and the component 2 can be further controlled, and a better fire extinguishing effect can be achieved.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer box with flame extinguishing function, comprising a box body, wherein a plurality of components are arranged in the box body, characterized in that: The component is provided with a protective cover, in which a flame extinguishing patch is provided just above the connection port between the component and the cable. The flame extinguishing patch is made of flame extinguishing microcapsules wrapped with flame retardant hot melt adhesive; the distance between the flame extinguishing patch and the component is 2-10 cm.

2. A transformer box with flame extinguishing function as claimed in claim 1, characterized in that: At least one side surface of the protective cover is provided with a socket, and a plug plate can be inserted into the interior of the protective cover through the socket and fixed on the protective cover, and the flame extinguishing patch is fixed on the plug plate.

3. A transformer box with flame extinguishing function as claimed in claim 1, characterized in that: The protective cover is fixed on the box body.

4. A transformer box with flame extinguishing function as claimed in claim 3, characterized in that: A hook is fixed on the box body, and the protective cover is fixed on the box body through the hook.

5. The transformer box with flame extinguishing function as claimed in claim 1, characterized in that: The protective cover is made of transparent material.

6. A transformer box with flame extinguishing function as claimed in claim 1, characterized in that: A plurality of heat dissipation holes are arranged around the protective cover.

7. A transformer box with flame extinguishing function as claimed in claim 6, characterized in that: The heat dissipation holes are in the shape of transverse rectangles, and a plurality of the heat dissipation holes are vertically distributed with equal intervals.

8. A transformer box with flame extinguishing function as claimed in claim 6, characterized in that: An insert plate is inserted from one side of the protective cover to the other side, and the flame extinguishing patch is arranged on the lower surface of the insert plate.

9. The transformer box with flame extinguishing function as claimed in claim 1, characterized in that: The components are one or more of a transformer, a circuit breaker, an isolating switch, a mutual inductor, a capacitor, a fuse, a contactor, a relay, an electric meter, and a battery.

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