CN109904642B - High temperature resistant electric connection device and electric connection box - Google Patents
High temperature resistant electric connection device and electric connection box Download PDFInfo
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- CN109904642B CN109904642B CN201910167060.5A CN201910167060A CN109904642B CN 109904642 B CN109904642 B CN 109904642B CN 201910167060 A CN201910167060 A CN 201910167060A CN 109904642 B CN109904642 B CN 109904642B
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Abstract
The invention relates to a high-temperature-resistant electric connection device, which comprises a high-temperature insulating ceramic base, wherein the high-temperature insulating ceramic base comprises a base and left and right isolation plates fixedly connected with the base, a wire locking device is arranged between the left and right isolation plates, one of the left and right isolation plates is provided with a wire passing hole, one side of the base is provided with a high-temperature insulating ceramic support, when a fire disaster occurs, two crossing fork wires are positioned, and the wires above the two crossing fork wires are softened and then are carried on the high-temperature insulating ceramic support, so that short circuit does not occur, and the electric function of the high-temperature-resistant electric connection device can still be continuously executed during the fire disaster.
Description
Technical Field
The invention relates to an electric wire connection box, in particular to a high-temperature-resistant electric connection device and an electric connection box.
Background
The wire connection box is used for transitional connection, bridging and jumping of a plurality of wires, prevents people from entering into contact with the electrified components, and also prevents foreign matters from falling on the connection and causing short circuit in fire.
In highway and railway engineering of buildings, such as bridges and tunnels, increasing safety standards require that certain circuits still be able to perform their electrical functions during a fire, so that certain functions are preserved, such as lighting and fire safety systems. Depending on the different standards to be adhered to, the special cables in these circuits must be able to withstand the heated conditions up to 950 ℃ for two hours or more.
These cables running through the building must distribute the current from one main circuit to different points of use, for example from the main circuit to each lighting or vital equipment, by branching from a main cable of large section to an auxiliary cable of smaller section. This is done in a device called a wire connection box.
However, the existing wire connection box is not resistant to high temperature, and irrelevant wires are easily conducted under the high temperature condition, so that the wires are short-circuited.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides the high-temperature-resistant electric connection device and the electric connection box, which ensure the continuity of a circuit without short circuit.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The utility model provides a high temperature resistant electric connection device, includes high temperature insulating ceramic base, and high temperature insulating ceramic base includes the base and the rigid coupling is in the left and right sides division board of base, is equipped with wire locking device between the division board about, and one of them is opened there is the wire through hole about the division board, and one side of base is equipped with high temperature insulating ceramic support piece.
Further, the wire locking device comprises a main wire locking device and an auxiliary wire locking device, the main wire locking device locks two main wires positioned on the same straight line to form a main wire, the auxiliary wire locking device electrically connects the auxiliary wire with the main wire, the auxiliary wire locking device is positioned above the main wire locking device, and the main wire locking device is electrically connected with the auxiliary wire locking device through a connecting sheet.
Further, the main wire locking device comprises an upper wire locking clamping piece and a lower wire locking clamping piece, the auxiliary wire locking device comprises an upper wire locking saddle-shaped clamp and a lower wire locking saddle-shaped clamp, the upper wire locking clamping piece or the lower wire locking clamping piece is fixedly connected with the connecting piece, and the upper wire locking saddle-shaped clamp or the lower wire locking saddle-shaped clamp is fixedly connected with the connecting piece.
Further, a mounting bracket is arranged below the base.
Further, the lower clamping piece is locked by the lead and fixedly connected with the metal mounting bracket through the ground wire screw.
Further, a supporting groove is formed on the outer side of the upper portion of the high-temperature insulating ceramic supporting piece, and a wire penetrating hole is formed on the lower portion of the high-temperature insulating ceramic supporting piece.
Further, a side groove is formed in the outer side of the side part of the high-temperature insulating ceramic support piece.
Further, the high-temperature insulating ceramic support piece further comprises an arc-shaped groove for supporting the wire, the arc-shaped groove is arranged on one side of the base, and the wire passes through the hole and is buckled above the arc-shaped groove.
The utility model provides a high temperature resistant electric connection case, includes shell main part and shell lid, and shell main part and shell lid form a holding chamber, and two piece at least main wires pass the shell main part, and an at least vice wire is connected with a main wire electricity, and vice wire is located different horizontal planes with the main wire to cross other main wires in the holding intracavity, adopt high temperature resistant electric connection device to be connected main wire and vice wire electricity, leave the space between vice wire and the main wire of crossing with vice wire or be equipped with independent high temperature insulating ceramic support through high temperature resistant electric connection device's high temperature ceramic support.
Further, the housing main body is provided with a through hole, the through hole is used for fixing the ceramic ring through a nut, and the main lead and the auxiliary lead respectively penetrate through the ceramic ring.
Compared with the prior art, the invention has the beneficial effects that:
The invention relates to a high-temperature-resistant electric connection device, which comprises a high-temperature insulating ceramic base, wherein the high-temperature insulating ceramic base comprises a base and left and right isolation plates fixedly connected with the base, a wire locking device is arranged between the left and right isolation plates, one of the left and right isolation plates is provided with a wire passing hole, one side of the base is provided with a high-temperature insulating ceramic support, when a fire disaster occurs, two crossing fork wires are positioned, and the wires above the two crossing fork wires are softened and then are carried on the high-temperature insulating ceramic support, so that short circuit does not occur, and the electric function of the high-temperature-resistant electric connection device can still be continuously executed during the fire disaster.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, in which:
Fig. 1 is an exploded structural view of a high temperature resistant electrical connection device of embodiment 1;
FIG. 2 is a top view of a high temperature resistant electrical connection of example 1;
FIG. 3 is a cross-sectional view of the position A-A of FIG. 2;
fig. 4 is a perspective view of a high temperature resistant electrical junction box of embodiment 1;
fig. 5 is a schematic view of the structure in which the case cover of embodiment 1 is opened;
FIG. 6 is a top view of an open high temperature resistant electrical junction box;
FIG. 7 is an exploded view of a single high temperature insulating ceramic support;
FIG. 8 is a schematic diagram of the structure of a single high temperature insulating ceramic support through which the primary and secondary leads pass;
fig. 9 is an exploded structural view of a high temperature resistant electrical connection device of embodiment 2;
FIG. 10 is a top view of a high temperature resistant electrical connection of example 2;
FIG. 11 is a cross-sectional view of the B-B position of FIG. 10;
FIG. 12 is a perspective view of a high temperature resistant electrical junction box of another threading configuration;
FIG. 13 is a schematic view of the structure of FIG. 12 with the housing cover open;
FIG. 14 is a top view of the open high temperature resistant electrical junction box of FIG. 12;
In the figure, 1 is a high-temperature insulating ceramic base; 2, a base;
3-left and right separator plates; 4-wire locking device;
5-wire passing holes; 6-high temperature insulating ceramic support;
7-a main wire locking device; 8-auxiliary wire locking device;
9—a main wire; 10-main wire;
11—secondary wire; 12-connecting piece;
13—a single high temperature insulating ceramic support; 14-wire locking upper clip;
15-wire locking lower clip; 16-wire locking saddle upper clamp;
17-wire locking saddle lower clamp; 18—a mounting bracket;
19-spring washer; 20—ground wire screw;
21-a supporting groove; 22-side grooves;
23-wire through hole; 24-arc-shaped groove;
25-a housing body; 26—a housing cover;
27—a receiving cavity; 28-through holes;
29-a nut; 30—a ceramic ring;
31-screws.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
Referring to fig. 1 to 8, the high temperature resistant electrical connection device of the present invention includes a high temperature insulating ceramic base 1, the high temperature insulating ceramic base 1 includes a base 2 and left and right isolation plates 3 fixedly connected to the base 2, a wire locking device 4 is disposed between the left and right isolation plates 3, one of the left and right isolation plates 3 is provided with a wire passing hole 5, and one side of the base 2 is provided with a high temperature insulating ceramic support 6.
The wire locking device 4 comprises a main wire locking device 7 and an auxiliary wire locking device 8, wherein the main wire locking device 7 locks and electrically connects two main wires 9 positioned on a straight line to form a main wire 10, the auxiliary wire locking device 8 electrically connects an auxiliary wire 11 with the main wire 10, the auxiliary wire locking device 8 is positioned above the main wire locking device 7, the main wire locking device 7 and the auxiliary wire locking device 8 are electrically connected through a connecting sheet 12, and the auxiliary wire 11 is positioned above the main wire 10 and is not on the same plane, so that the crossed wires can keep a certain height with each other, and further a high-temperature ceramic support piece of a high-temperature resistant electric connecting device or a single high-temperature insulating ceramic support piece 13 is adopted.
The main wire locking device 7 comprises an upper wire locking clamping piece 14 and a lower wire locking clamping piece 15, the lower wire locking clamping piece 15 is fixedly connected to the base 2 by two screws 31, a main wire cable is clamped by four screws 31, the auxiliary wire locking device 8 comprises an upper wire locking saddle clamp 16 and a lower wire locking saddle clamp 17, the upper wire locking clamping piece 14 is fixedly connected with the lower wire locking saddle clamp 17 through a connecting piece 12, and the auxiliary wire cable is clamped by two screws 31, so that the cable can be damaged or bent during a fire. To mitigate these risks, with this construction, the wire locking device engages between the main wire 10 and the auxiliary wire 11 at two different levels.
The mounting bracket 18 is fixedly connected under the base 2 by a screw 31, the mounting bracket 18 can be fixed on a high temperature resistant electric connection box or a wall, one of the mounting holes of the lower wire locking clamping piece 15 is slightly reduced, and a longer ground screw 3120 with a spring washer 19 is used, which ensures that the lower wire locking clamping piece 15 electrically contacts the metal mounting bracket 18, and then the mounting bracket 18 and the metal high temperature resistant electric connection box are electrically connected to a ground conductor.
The upper portion of the high temperature insulating ceramic support 6 is provided with a support groove 21, the outer side of the side portion is provided with a side groove 22, the lower portion is provided with a wire passing hole 23, the wire passing hole 5 is an edge hole with one side open, the auxiliary wire 11 passes through the wire passing hole 5, the high temperature insulating ceramic support 6 further comprises an arc groove 24 for supporting the wire, the arc groove 24 is arranged on one side of the base 2, the wire passing hole 23 is buckled above the arc groove 24, the main wire 10 passes through the wire passing hole 23, when the auxiliary wire 11 is softened at high temperature, the auxiliary wire is lapped on the support groove 21 and the side groove 22, and the wire contacting and electric connection of the mutually crossed wires is prevented, so that short circuit is caused.
The utility model provides a high temperature resistant electric connection case, including shell main part 25 and shell lid 26, shell main part 25 and shell lid 26 are by closure screw 31 rigid coupling constitution, it is made by steel, stainless steel or other metals or refractory material, shell main part 25 and shell lid 26 form a holding chamber 27, the first function is to prevent getting into the electrified part of contact, its second function is to prevent that extraneous foreign matter drops in wire junction, and short circuit in the conflagration, a plurality of main wires 10 pass shell main part 25, a subsidiary wire 11 is connected with a main wire 10 electricity, subsidiary wire 11 and main wire 10 are located on different horizontal planes, and cross other main wires 10, in holding chamber 27, adopt high temperature resistant electric connection device to connect main wire 10 and subsidiary wire 11 electricity, for the protection of electric connection position, leave the space between subsidiary wire 11 and main wire 10 that it strides across through high temperature resistant electric connection device's high temperature ceramic support or be equipped with alone high temperature insulating ceramic support 13.
The individual high temperature insulating ceramic supports 13 may be used at each place where the conductors cross each other or only at certain selected intersections, preventing contact with each other at high temperatures to conduct electricity. The function of the high temperature ceramic support of the high temperature resistant electrical connection and the separate high temperature insulating ceramic support 13 is to prevent conductors from touching and shorting at high temperatures, even if they are bent, and even if their electrical insulation has been damaged, the component ensures that the conductors remain in all directions for proper operation.
The housing body 25 is provided with a through hole 28, the through hole 28 is fixed to the ceramic ring 30 by a nut 29, and the main wire 10 and the sub-wire 11 respectively pass through the ceramic ring 30, and if a fire occurs, if the conductor is bent or its electrical insulation is damaged, an electrical short circuit between the conductor and the housing body 25 can be prevented.
A high temperature resistant electrical connection device can be designed to output the secondary conductor 11 to the right or left.
Example 2:
The technical scheme of this embodiment is substantially the same as that of embodiment 1, and the same points are not repeated, and the difference is that:
Referring to fig. 9 to 11, the mounting bracket 18 is fixedly connected under the base 2 by two screws 31, and the wire grounding is performed without providing the ground screw 3120.
Referring to fig. 12 to 14, in the case where the junction box is used to divide one branch into two sets of circuits, the high temperature resistant electric connection means may be doubled, and two high temperature resistant electric connection means may be placed on the main wire 10, one main wire 10 connecting two sub wires 11.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it should be understood that the invention is not limited to the preferred embodiments, but is capable of modification and equivalents to some of the features described in the foregoing embodiments, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The high-temperature-resistant electric connection device is characterized by comprising a high-temperature-resistant insulating ceramic base, wherein the high-temperature-resistant insulating ceramic base comprises a base and left and right isolation plates fixedly connected to the base, a wire locking device is arranged between the left and right isolation plates, one of the left and right isolation plates is provided with a wire passing hole, and one side of the base is provided with a high-temperature-resistant insulating ceramic support piece;
The outer side of the upper part of the high-temperature insulating ceramic supporting piece is provided with a supporting groove, and the lower part of the high-temperature insulating ceramic supporting piece is provided with a wire penetrating hole;
a side groove is formed in the outer side of the side part of the high-temperature insulating ceramic support piece;
The high-temperature insulating ceramic support piece further comprises an arc-shaped groove for supporting the lead, the arc-shaped groove is arranged on one side of the base, and the lead passes through the hole and is buckled above the arc-shaped groove;
The wire locking device comprises a main wire locking device and an auxiliary wire locking device, wherein the main wire locking device locks two main wires positioned on a straight line to form a main wire, the auxiliary wire locking device is used for electrically connecting the auxiliary wire with the main wire, the auxiliary wire locking device is positioned above the main wire locking device, and the main wire locking device is electrically connected with the auxiliary wire locking device through a connecting sheet.
2. The high temperature resistant electrical connection of claim 1, wherein the primary wire locking means comprises an upper wire locking clip and a lower wire locking clip, the secondary wire locking means comprises an upper wire locking saddle clip and a lower wire locking saddle clip, the upper wire locking clip or the lower wire locking clip is fixedly connected to the connecting piece, and the upper wire locking saddle clip or the lower wire locking saddle clip is fixedly connected to the connecting piece.
3. The high temperature resistant electrical connection of claim 1, wherein a mounting bracket is provided below the base.
4. A high temperature resistant electrical connection according to claim 3 wherein the wire locking lower clip is secured to the metallic mounting bracket by a ground screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167060.5A CN109904642B (en) | 2019-03-06 | 2019-03-06 | High temperature resistant electric connection device and electric connection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167060.5A CN109904642B (en) | 2019-03-06 | 2019-03-06 | High temperature resistant electric connection device and electric connection box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109904642A CN109904642A (en) | 2019-06-18 |
| CN109904642B true CN109904642B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910167060.5A Active CN109904642B (en) | 2019-03-06 | 2019-03-06 | High temperature resistant electric connection device and electric connection box |
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| Country | Link |
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| CN (1) | CN109904642B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117498052B (en) * | 2023-12-25 | 2024-04-02 | 国网山东省电力公司淄博供电公司 | A kind of power cable connector |
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2019
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| CN2779691Y (en) * | 2005-03-25 | 2006-05-10 | 辽阳市顺达电器设备厂 | Electric cable distribution box |
| AU2014277776A1 (en) * | 2010-01-25 | 2015-01-22 | Enphase Energy, Inc. | Method and apparatus for interconnecting distributed power sources |
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| CN109904642A (en) | 2019-06-18 |
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