CN219370907U - Swiftly install formula pyrotechnic device switch - Google Patents
Swiftly install formula pyrotechnic device switch Download PDFInfo
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- CN219370907U CN219370907U CN202320658052.2U CN202320658052U CN219370907U CN 219370907 U CN219370907 U CN 219370907U CN 202320658052 U CN202320658052 U CN 202320658052U CN 219370907 U CN219370907 U CN 219370907U
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- cavity
- current contactor
- direct current
- ceramic
- sealing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to the technical field of contactor switches, in particular to a quickly-installed pyrotechnic device switch, which comprises a shell, a ceramic cavity fixedly installed in the shell and a direct-current contactor cavity fixedly installed in the ceramic cavity, wherein the ceramic cavity is formed by a ceramic body and a ceramic body; the top of the ceramic cavity is fixedly provided with an annular sealing sheet, and the direct current contactor cavity is arranged on the inner side of the sealing sheet; external threads are arranged on the outer side of the cavity of the direct current contactor; the sealing plate comprises a sealing plate body, an internal thread matched with an external thread on the cavity of the direct current contactor is arranged on the inner side of the sealing plate body, and the cavity of the direct current contactor is in threaded connection with the inside of the sealing plate. The main body part is sealed by using an internal thread sealing ring structure, and then the ignition tube is independently fixed in the cavity of the direct current contactor, and the external thread is arranged outside the cavity of the direct current contactor, so that the safety production of the ignition tube is facilitated, the assembly is simple, and the matching is firm.
Description
Technical Field
The utility model relates to the technical field of contactor switches, in particular to a quickly-installed pyrotechnic device switch.
Background
In the new energy industry, such as energy storage, charging piles, automobiles and the like, a high-voltage direct-current contactor is required to be used as a circuit switch, so that the correct input and output of the battery energy are ensured. In electrical circuits, high voltage dc contactors, hot melt fuses and pyrotechnic fuses are typically provided. The integrated contactor integrates the functions of a high-voltage direct-current contactor, a hot-melt fuse and a pyrotechnic device fuse into one device, so that a novel contactor with an intelligent control function is formed.
The principle of the integrated contactor is that the integrated contactor has the same function as a high-voltage direct current contactor in the normal use process of a battery, when a battery pack is short-circuited, collision (such as new energy automobile collision) and the like, a main loop in the high-voltage direct current contactor is broken by starting a pyrotechnic device in an integrated product through signals such as current, position and the like, so that the mechanical open circuit in the whole loop of the battery is realized, and the safety of the battery is ensured.
The pyrotechnic device switch is powered on through a coil, converts electric energy into mechanical energy, controls the opening and closing functions of the switch through the movement of a push rod mechanism, specifically triggers an ignition tube to generate explosive gas to generate energy, and acts on the contact part of the direct current contactor in a transmission mode to forcedly separate the contact under the electrified condition, so that the reliable disconnection of the contactor is ensured. Because the pyrotechnic device contains explosive gas, the processing and production process has higher requirements on environment and technology, and the high-voltage direct-current relay in the new energy industry is in a sealed state. Most of the existing pyrotechnic devices are arranged in a sealed cavity of a direct current contactor, the production and assembly procedures are complex, and the structural strength and reliability are not high.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a quickly-installed pyrotechnic device switch.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a quickly-installed pyrotechnic device switch comprises a shell, a ceramic cavity fixedly installed in the shell and a direct-current contactor cavity fixedly installed in the ceramic cavity; an annular sealing sheet is fixedly arranged at the top of the ceramic cavity, and the direct current contactor cavity is arranged at the inner side of the sealing sheet; an external thread is arranged on the outer side of the cavity of the direct current contactor; the sealing piece comprises a sealing piece body, wherein an internal thread matched with an external thread on a direct current contactor cavity is arranged on the inner side of the sealing piece body, and the direct current contactor cavity is in threaded connection with the inside of the sealing piece; the ignition device is characterized in that an ignition tube is fixedly arranged in the direct-current contactor cavity, an ignition device signal wire extending to the outside of the direct-current contactor cavity is arranged at the upper end of the ignition tube, and a piston plugged in the direct-current contactor cavity is arranged at the lower side of the ignition tube.
Preferably, two static terminal holes and a direct current contactor hole positioned between the two static terminal holes are formed in the top of the ceramic cavity, one static terminal is welded in each of the two static terminal holes, the upper end of the static terminal protrudes out of the shell, and an annular sealing sheet is welded in the direct current contactor hole.
Preferably, the sealing piece further comprises a limiting mounting ring arranged at the top of the sealing piece body, the sealing piece body is arranged in the ceramic cavity, and the limiting mounting ring is positioned outside the ceramic cavity.
The beneficial effects of the utility model are as follows:
the main body part is sealed by using an internal thread sealing ring structure, and then the ignition tube is independently fixed in the cavity of the direct current contactor, and the external thread is arranged outside the cavity of the direct current contactor, so that the safety production of the ignition tube is facilitated, the assembly is simple, and the matching is firm.
Drawings
FIG. 1 is a schematic three-dimensional view of a switch of a quick-install pyrotechnic device in accordance with the present utility model;
FIG. 2 is a schematic view of a switch of a quick-install pyrotechnic device in a closed state;
FIG. 3 is a schematic view of a cross-sectional structure of a DC contactor of a switch of a quick-install pyrotechnic device in accordance with the present utility model;
FIG. 4 is a schematic view of a sealing plate of a switch of a quick-install pyrotechnic device in accordance with the present utility model;
fig. 5 is a schematic view of a cavity of a dc contactor of a switch of a quick-mounting pyrotechnic device according to the present utility model.
In the figure: 1-an upper housing; 2-a lower housing; 3-ceramic cavities; 4-static terminals; 5-direct current contactor cavity; 51-external threads; 6-ignition tube; 61-an ignition signal line; 7-a piston; 8-sealing sheets; 81-a sealing plate body; 82-limiting mounting rings; 83-internal threads; 9-pushing the rod; 10-moving sheets; 11-loading a spring; 12-lower springs; 13-functional sheet; 14-sealing the metal shell; 15-coil rack; 16-enamelled wire; 17-a switching signal tap; 18-a push rod collar; 19-iron core; 20-drive mechanism.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.
Referring to fig. 1-5, a quick-install pyrotechnic device switch includes a housing, a ceramic cavity 3 and a coil former 15 fixedly mounted inside the housing, a dc contactor cavity 5 fixedly mounted inside the ceramic cavity 3.
The shell includes upper housing 1 and lower shell 2, and ceramic cavity 3 installs inside upper housing 1, and coil former 15 installs inside lower shell 2, and one side of lower shell 2 is provided with switch signal extraction joint 17.
Two static terminal holes and a direct current contactor hole positioned between the two static terminal holes are formed in the top of the ceramic cavity 3, one static terminal 4 is welded in each of the two static terminal holes, the upper end of the static terminal 4 protrudes out of the shell, an annular sealing sheet 8 is welded in each direct current contactor hole, and the direct current contactor cavity 5 is arranged on the inner side of the sealing sheet 8.
The outside of the dc contactor cavity 5 is provided with external threads 51.
The sealing plate 8 comprises a sealing plate body 81 and a limiting mounting ring 82 arranged at the top of the sealing plate body 81, the sealing plate body 81 is arranged in the ceramic cavity 3, the limiting mounting ring 82 is located outside the ceramic cavity 3, internal threads 83 matched with external threads 51 on the direct current contactor cavity 5 are arranged on the inner side of the sealing plate body 81, and the direct current contactor cavity 5 is in threaded connection inside the sealing plate 8.
The ignition tube 6 is fixedly installed in the direct-current contactor cavity 5, an ignition device signal wire 61 extending to the outside of the direct-current contactor cavity 5 is arranged at the upper end of the ignition tube 6, and a piston 7 plugged in the direct-current contactor cavity 5 is arranged at the lower side of the ignition tube 6.
The outside of coil former 15 is provided with enameled wire 16, and the outside of enameled wire 16 is provided with actuating mechanism 20, and the inboard fixedly connected with of coil former 15 seals metal casing 14, and the inside of sealing metal casing 14 is along its length direction sliding fit has iron core 19, fixedly connected with push rod 9 that the top extends to the piston 7 side on the iron core 19, the top fixedly connected with of push rod 9 and the moving plate 10 that matches of quiet terminal 4.
The bottom fixedly connected with function piece 13 of pottery cavity 3, the middle part fixedly connected with push rod lantern ring 18 of function piece 13, push rod 9 along length direction sliding fit in push rod lantern ring 18 inside. The upper spring 11 is sleeved outside the upper end of the push rod 9, the upper spring 11 is positioned between the moving plate 10 and the push rod lantern ring 18, the upper end of the push rod is fixed or propped against the moving plate 10, and the lower end of the push rod is fixed or propped against the push rod lantern ring 18.
The lower spring 12 is sleeved outside the lower end of the push rod 9, the lower spring 12 is positioned between the functional sheet 13 and the iron core 19, and the upper end of the lower spring is fixed on the functional sheet 13.
When the coil is electrified, the coil generates an electromagnetic field, and the electromagnetic field is absorbed and magnetized by the iron core 19, and the iron core 19 moves upwards, so that the static terminal 4 and the moving plate 10 are closed. If the coil is powered down, the iron core 19 is reset under the action of the spring, so that the switch is controlled to be opened and closed.
When an abnormal working condition is met, the ignition tube 6 is triggered to start the pyrotechnic device, and the explosive gas pushes the piston 7, so that the pushing rod 9 is pushed, the stop structure on the functional sheet 13 is broken, and the purpose of large gap is achieved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (3)
1. The quick installation type pyrotechnic device switch is characterized by comprising a shell, a ceramic cavity (3) fixedly installed in the shell, and a direct current contactor cavity (5) fixedly installed in the ceramic cavity (3);
an annular sealing sheet (8) is fixedly arranged at the top of the ceramic cavity (3), and the direct current contactor cavity (5) is arranged at the inner side of the sealing sheet (8);
an external thread (51) is arranged on the outer side of the direct current contactor cavity (5);
the sealing piece (8) comprises a sealing piece body (81), an internal thread (83) matched with an external thread (51) on the direct current contactor cavity (5) is arranged on the inner side of the sealing piece body (81), and the direct current contactor cavity (5) is in threaded connection with the inside of the sealing piece (8);
the ignition device is characterized in that an ignition tube (6) is fixedly arranged in the direct-current contactor cavity (5), an ignition device signal line (61) extending to the outside of the direct-current contactor cavity (5) is arranged at the upper end of the ignition tube (6), and a piston (7) plugged in the direct-current contactor cavity (5) is arranged at the lower side of the ignition tube (6).
2. A quick-action pyrotechnic device switch according to claim 1, characterized in that the ceramic cavity (3) has two static terminal holes and a dc contactor hole between the two static terminal holes, each of the two static terminal holes being welded with a static terminal (4), the upper end of the static terminal (4) protruding outside the housing, the dc contactor hole being welded with an annular sealing piece (8).
3. A quick-fit pyrotechnic device switch according to claim 1, characterized in that the sealing plate (8) further comprises a limit collar (82) arranged on top of the sealing plate body (81), the sealing plate body (81) being arranged inside the ceramic cavity (3), the limit collar (82) being located outside the ceramic cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658052.2U CN219370907U (en) | 2023-03-29 | 2023-03-29 | Swiftly install formula pyrotechnic device switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658052.2U CN219370907U (en) | 2023-03-29 | 2023-03-29 | Swiftly install formula pyrotechnic device switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219370907U true CN219370907U (en) | 2023-07-18 |
Family
ID=87152705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320658052.2U Active CN219370907U (en) | 2023-03-29 | 2023-03-29 | Swiftly install formula pyrotechnic device switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219370907U (en) |
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2023
- 2023-03-29 CN CN202320658052.2U patent/CN219370907U/en active Active
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| GR01 | Patent grant |