CN219534401U - Pyrotechnic device switch with large contact gap - Google Patents
Pyrotechnic device switch with large contact gap Download PDFInfo
- Publication number
- CN219534401U CN219534401U CN202320658023.6U CN202320658023U CN219534401U CN 219534401 U CN219534401 U CN 219534401U CN 202320658023 U CN202320658023 U CN 202320658023U CN 219534401 U CN219534401 U CN 219534401U
- Authority
- CN
- China
- Prior art keywords
- cavity
- push rod
- direct current
- functional sheet
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model relates to the technical field of contactor switches, in particular to a pyrotechnic device switch with a large contact gap, which comprises a shell, a ceramic cavity fixedly arranged in the shell and a direct current contactor cavity fixedly arranged in the ceramic cavity, wherein the ceramic cavity is arranged on the inner side of the shell; the bottom fixedly connected with function piece of ceramic cavity, the function piece include with ceramic cavity fixed connection's function piece body, the middle part of function piece body is provided with the structure of stopping, push rod lantern ring fixed connection is in the structure middle part of stopping, set up the ring of stopping that encircles the structure of stopping on the function piece body, the longitudinal section of stopping ring is U type structure or V type structure. The bottom of sealed cavity sets up the functional sheet that has a structure of ending, when meetting unusual operating mode, the structure of ending on the functional sheet breaks, reaches the purpose of big clearance, ends and constructs the position ring that ends that sets up U type or V type around, when gas explosion takes place, can guarantee that the position function of ending of its contactor is stable.
Description
Technical Field
The utility model relates to the technical field of contactor switches, in particular to a pyrotechnic device switch with a large contact gap.
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.
The existing contactor has poor stability of a stop structure at the bottom, and after the ignition tube triggers explosive gas, the stop structure is at risk of being incapable of being disconnected in time, so that the contactor is out of order.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a pyrotechnic device switch with large contact gaps.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a pyrotechnic device switch with a large contact gap comprises a shell, a ceramic cavity fixedly arranged in the shell and a direct current contactor cavity fixedly arranged in the ceramic cavity;
the top of the ceramic cavity is fixedly provided with a static terminal and a sealing sheet, and the direct current contactor cavity is arranged on the inner side of the sealing sheet;
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;
the coil rack is characterized in that an enameled wire is arranged on the outer side of the coil rack, a driving mechanism is arranged on the outer side of the enameled wire, a sealing metal shell is fixedly connected to the inner side of the coil rack, an iron core is slidably matched with the inner side of the sealing metal shell along the length direction of the sealing metal shell, a pushing rod with the top end extending to the piston side is fixedly connected to the iron core, and a moving sheet matched with the static terminal is fixedly connected to the top end of the pushing rod;
the bottom of the ceramic cavity is fixedly connected with a functional sheet, the middle part of the functional sheet is fixedly connected with a push rod lantern ring, the push rod is in sliding fit inside the push rod lantern ring along the length direction, an upper spring is sleeved outside the upper end of the push rod, the upper spring is positioned between the moving sheet and the push rod lantern ring, the upper end of the upper spring is fixed or abutted against the moving sheet, and the lower end of the upper spring is fixed or abutted against the push rod lantern ring;
the outer side of the lower end of the pushing rod is sleeved with a lower spring, the lower spring is positioned between the functional sheet and the iron core, and the upper end of the lower spring is fixed on the functional sheet;
the functional piece comprises a functional piece body fixedly connected with the ceramic cavity, a stop structure is arranged in the middle of the functional piece body, the push rod lantern ring is fixedly connected with the middle of the stop structure, and a stop ring encircling the stop structure is arranged on the functional piece body.
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 longitudinal section of the stop ring is of a U-shaped structure.
Preferably, the longitudinal section of the stop ring is of a V-shaped structure.
Preferably, the included angle of the V-shaped structure of the longitudinal section of the stop ring is 45-125 degrees.
The beneficial effects of the utility model are as follows:
1. the bottom of the sealing cavity is provided with a functional sheet with a stop structure, and when abnormal working conditions are met, the stop structure on the functional sheet is broken, so that the purpose of large clearance is achieved.
2. The U-shaped or V-shaped stop ring is arranged around the stop mechanism, so that the stable stop function of the contactor can be ensured when gas explosion occurs.
Drawings
FIG. 1 is a schematic three-dimensional view of a pyrotechnic device switch having a large contact gap in accordance with the present utility model;
FIG. 2 is a schematic view of a schematic cross-sectional view of a pyrotechnic device switch with a large contact gap in a closed state in accordance with the present utility model;
FIG. 3 is a schematic view of a three-dimensional structure of a functional sheet of a pyrotechnic device switch with a large contact gap in accordance with the present utility model;
FIG. 4 is a schematic cross-sectional view of a stop structure of a pyrotechnic device switch having a large contact gap in accordance with an embodiment of the present utility model;
FIG. 5 is a schematic cross-sectional view of a two-stop structure of a pyrotechnic device switch having a large contact gap in accordance with one embodiment of the present utility model;
FIG. 6 is a schematic view of a large contact gap pyrotechnic device switch in an open state in accordance with the present utility model;
fig. 7 is a schematic view showing a burst-on state of a pyrotechnic device switch with a large contact gap 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; 6-ignition tube; 61-an ignition signal line; 7-a piston; 8-sealing sheets; 9-pushing the rod; 10-moving sheets; 11-loading a spring; 12-lower springs; 13-functional sheet; 131-a functional sheet body; 132-a stop ring; 133-stop configuration; 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.
Embodiment one:
referring to fig. 1-4, a pyrotechnic device switch with a large contact gap comprises a housing, a ceramic cavity 3 and a coil former 15 fixedly arranged in the housing, and a direct current contactor cavity 5 fixedly arranged in 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 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.
The functional sheet 13 comprises a functional sheet body 131 fixedly connected with the ceramic cavity 3, a stop structure 133 is arranged in the middle of the functional sheet body 131, the push rod lantern ring 18 is fixedly connected in the middle of the stop structure 133, a stop ring 132 encircling the stop structure 133 is arranged on the functional sheet body 131, and the longitudinal section of the stop ring 132 is of a U-shaped structure.
Referring to fig. 5 to 6, when the coil is energized, the coil generates an electromagnetic field which is then absorbed and magnetized by the iron core 19, and the iron core 19 moves upward, so that the stationary 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 133 on the functional sheet 13 is broken, and the purpose of large clearance is achieved.
Embodiment two:
referring to fig. 7, unlike the embodiment, the longitudinal section of the stopper ring 132 has a V-shaped structure, and the included angle of the V-shaped structure is between 45 ° and 125 °.
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 (5)
1. The pyrotechnic device switch with the large contact gap is characterized by comprising a shell, a ceramic cavity (3) and a coil rack (15) which are fixedly arranged in the shell, and a direct current contactor cavity (5) which is fixedly arranged in the ceramic cavity (3);
the top of the ceramic cavity (3) is fixedly provided with a static terminal (4) and a sealing piece (8), and the direct current contactor cavity (5) is arranged at the inner side of the sealing piece (8);
an ignition tube (6) is fixedly arranged 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 coil rack is characterized in that an enameled wire (16) is arranged on the outer side of the coil rack (15), a driving mechanism (20) is arranged on the outer side of the enameled wire (16), a sealing metal shell (14) is fixedly connected to the inner side of the coil rack (15), an iron core (19) is slidably matched with the inner side of the sealing metal shell (14) along the length direction of the sealing metal shell, a pushing rod (9) with the top end extending to the side of the piston (7) is fixedly connected to the iron core (19), and a moving sheet (10) matched with the static terminal (4) is fixedly connected to the top end of the pushing rod (9);
the ceramic cavity (3) is fixedly connected with a functional sheet (13) at the bottom, a push rod lantern ring (18) is fixedly connected to the middle part of the functional sheet (13), the push rod (9) is slidably matched inside the push rod lantern ring (18) along the length direction, an upper spring (11) is sleeved outside the upper end of the push rod (9), the upper spring (11) is positioned between the moving sheet (10) and the push rod lantern ring (18), the upper end of the upper spring is fixed or propped against the moving sheet (10), and the lower end of the upper spring is fixed or propped against the push rod lantern ring (18);
the outer side of the lower end of the pushing rod (9) is sleeved with a lower spring (12), 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);
the functional sheet (13) comprises a functional sheet body (131) fixedly connected with the ceramic cavity (3), a stop structure (133) is arranged in the middle of the functional sheet body (131), the push rod lantern ring (18) is fixedly connected in the middle of the stop structure (133), and a stop ring (132) encircling the stop structure (133) is arranged on the functional sheet body (131).
2. A pyrotechnic device switch with a large contact gap according to claim 1, characterized in that two static terminal holes and a direct current contactor hole between the two static terminal holes are provided at 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 outside the housing, and an annular sealing piece (8) is welded in the direct current contactor hole.
3. A pyrotechnic device switch with a large contact gap according to claim 1, characterized in that the longitudinal section of the stop ring (132) is of U-shaped configuration.
4. A pyrotechnic device switch with a large contact gap according to claim 1, characterized in that the longitudinal section of the stop ring (132) is of V-shaped configuration.
5. A pyrotechnic device switch with a large contact gap according to claim 4, characterized in that the angle of the V-shaped structure of the longitudinal section of the stop ring (132) is between 45 ° and 125 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658023.6U CN219534401U (en) | 2023-03-29 | 2023-03-29 | Pyrotechnic device switch with large contact gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658023.6U CN219534401U (en) | 2023-03-29 | 2023-03-29 | Pyrotechnic device switch with large contact gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219534401U true CN219534401U (en) | 2023-08-15 |
Family
ID=87631402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320658023.6U Active CN219534401U (en) | 2023-03-29 | 2023-03-29 | Pyrotechnic device switch with large contact gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219534401U (en) |
-
2023
- 2023-03-29 CN CN202320658023.6U patent/CN219534401U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112582216B (en) | Contact suspension trigger mechanism for use with switching devices incorporating detonating features | |
| CN110752117A (en) | Contactor device | |
| US11276535B2 (en) | Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features | |
| JP2012089492A (en) | Electromagnetic switching device | |
| CN219534401U (en) | Pyrotechnic device switch with large contact gap | |
| JP7405534B2 (en) | Passive trigger mechanism for use with switching devices incorporating pyrotechnic features | |
| CN213988746U (en) | High-capacity relay with reliable auxiliary contacts | |
| CN219370905U (en) | Pyrotechnic device switch convenient to production | |
| CN219370907U (en) | Swiftly install formula pyrotechnic device switch | |
| CN219370906U (en) | Quick-breaking pyrotechnic device switch | |
| CN112289644A (en) | High-capacity relay with reliable auxiliary contacts | |
| CN116435140B (en) | Integrated intelligent contactor | |
| CN209804562U (en) | Gas-electric hybrid double-drive contactor | |
| CN219497638U (en) | High-efficiency power pipe device switch | |
| US12009167B2 (en) | Contactor with integrated pyrotechnic interrupter | |
| CN216902710U (en) | Switching device with pyrotechnic excitation device | |
| CN216902709U (en) | Switching device with pyrotechnic excitation device | |
| CN210516625U (en) | Explosion-proof structure of direct current contactor | |
| CN219370908U (en) | Firework device switch for fixed point fire tube | |
| CN110391363A (en) | Battery cover board assembly, single battery, battery modules, power battery and electric car | |
| CN112542355A (en) | Direct current relay with improved short circuit resistance | |
| CN220341125U (en) | Explosion-proof direct current contactor | |
| CN219304049U (en) | Charging connection equipment and power receiving seat | |
| CN111755267B (en) | Device for direct current loop of charger | |
| CN113948338B (en) | Auxiliary switching device of ceramic direct-current contactor and contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |