Switch arc extinguishing structure
By designing various combinations of arc-extinguishing modules, the problem of differences in the volume and number of grid plates between AC and DC circuit breakers' arc-extinguishing chambers was solved, achieving universality and efficient arc-extinguishing effect for different voltage levels.
Patent Information
- Application Number
- CN202423221413.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing AC circuit breakers and DC circuit breakers have significant differences in the volume of the arc-extinguishing chamber and the number of arc-extinguishing grid plates, making them incompatible. Furthermore, the arc-extinguishing chambers of high-voltage circuit breakers of different voltage levels also differ, making it difficult to achieve universality.
A switch arc extinguishing structure was designed, comprising first and second arc extinguishing modules. The first arc extinguishing module has larger and fewer grid plates than the second, making it suitable for AC power; the second arc extinguishing module has more grid plates, making it suitable for DC power. Multiple mounting positions are provided within the main housing, allowing for different combinations and achieving versatility.
It achieves versatility for both AC and DC switches and different voltage levels, improves the applicability of the arc extinguishing structure and the versatility of the installation location, and enhances arc extinguishing efficiency and space utilization.
Smart Images
Figure CN223598613U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a low -voltage component technical field especially, it is a kind of switch arc extinguishing structure. BACKGROUND
[0002] In light storage power generation system and AC-DC distribution system, with the continuous progress of power supply network technology, system capacity is more and more large, system voltage is also continuously improved, and short-circuit fault current breaking capacity requirement is also continuously improved.For high voltage arc extinguishing measure, AC circuit breaker or disconnecting switch is basically realized through increasing the heat capacity of arc plate in arc chamber and improving air channel to realize the breaking arc of AC high voltage, and DC circuit breaker or disconnecting switch is basically realized through the stacking of arc plate in arc chamber to improve arc voltage to realize the breaking arc of DC high voltage.
[0003] At present, the arc chamber volume of conventional frame circuit breaker and disconnecting switch in market is quite different between AC-DC products, and basically cannot be universal.Meanwhile, for high voltage DC circuit breaker or disconnecting switch of different voltage grades, the number of arc plates is also different, so that the arc chamber is also different in DC circuit breaker or disconnecting switch of different voltage grades.
[0004] Therefore, it is necessary to develop a new switch arc extinguishing structure, which can be applied to AC circuit breaker and DC circuit breaker, and DC circuit breaker of different voltage grades, to realize the universality of switch arc extinguishing structure. CONTENT OF UTILITY MODEL
[0005] The utility model aims at overcoming the defects of the prior art and provides a switch arc extinguishing structure to improve the application range of switch arc extinguishing structure.
[0006] The utility model can be realized by the following technical scheme:
[0007] A switch arc extinguishing structure comprises:
[0008] A first arc extinguishing module comprises a first arc extinguishing plate.
[0009] A second arc extinguishing module comprises a second arc extinguishing plate, the size of the first arc extinguishing plate is greater than that of the second arc extinguishing plate, and the number of the second arc extinguishing plate is greater than that of the first arc extinguishing plate.
[0010] A main shell is provided with an arc inlet for the arc generated by switch to enter, and a plurality of mounting positions are arranged in the main shell, and one first arc extinguishing module or second arc extinguishing module is mounted on each mounting position.
[0011] In one of the embodiments, the installation position comprises a module installation slot, a plurality of the module installation slots are arranged in sequence along a direction parallel to the arc entrance, and the first arc extinguishing module and the second arc extinguishing module can be inserted into the module installation slot.
[0012] In one of the embodiments, the first arc extinguishing module comprises a first shell, a plurality of first fin installation slots are arranged on the first shell in sequence along a first direction, and an angle between the first direction and a plane where the arc entrance is located is 0°-45°; the first arc extinguishing fin is inserted into the first fin installation slot.
[0013] In one of the embodiments, the first arc extinguishing module comprises a first gas generating member, the first gas generating member is arranged in the first shell, a plurality of first pin accommodating slots are arranged on the first gas generating member, one end of the first arc extinguishing fin facing the arc entrance is provided with a first pin, and the first pin is inserted into the first pin accommodating slot.
[0014] In one of the embodiments, a clamping hole is arranged on the first shell, and a buckle is arranged on the first gas generating member, and the buckle is inserted into the clamping hole.
[0015] In one of the embodiments, the first arc extinguishing module comprises an ionization elimination net plate, one end of the first shell away from the arc entrance is provided with a first gas outlet, and the ionization elimination net plate is connected with the first shell and covers the first gas outlet.
[0016] In one of the embodiments, the second arc extinguishing module comprises a second shell, a plurality of second fin installation slots are arranged on the second shell in sequence along a second direction, the second direction is perpendicular to the first direction; and the second arc extinguishing fin is inserted into the second fin installation slot.
[0017] In one of the embodiments, the second arc extinguishing module comprises a second shell, a plurality of second fin installation slots are arranged on the second shell in sequence along a second direction, an angle between the second direction and the arc entrance is 45°-90°; and the second arc extinguishing fin is inserted into the second fin installation slot.
[0018] In one of the embodiments, the second arc extinguishing module comprises a second gas generating member, a gas generating installation port perpendicular to the arc entrance is arranged on the second shell, the second gas generating member is arranged in the second shell, a plurality of second pin accommodating slots are arranged on the second gas generating member, one end of the second arc extinguishing fin facing the gas generating installation port is provided with a second pin, and the second pin is inserted into the second pin accommodating slot.
[0019] In one of the embodiments, a magnetic sheet is arranged on the second gas production member away from one side of the second arc extinguishing fin.
[0020] In one of the embodiments, the second arc extinguishing module comprises two third arc extinguishing fins, the third arc extinguishing fin comprises an arc leading part and an arc extinguishing part connected perpendicularly to each other, the arc extinguishing part is inserted into the second fin mounting slot, the arc leading part is arranged on the side of the second shell, and the two arc leading parts are arranged on the opposite sides of the second shell.
[0021] Compared with the prior art, the utility model has the advantages of:
[0022] 1、The switch arc extinguishing structure, a plurality of mounting positions are arranged in the main shell, and the first arc extinguishing module and the second arc extinguishing module with different sizes and different numbers of arc extinguishing fins are arranged, and the first arc extinguishing module and the second arc extinguishing module can be installed on the mounting positions at will, the size of the first arc extinguishing fin in the first arc extinguishing module is larger than that of the second arc extinguishing fin, the heat capacity of the first arc extinguishing module is large, and the first arc extinguishing module is more suitable for alternating current, the number of the second arc extinguishing fin in the second arc extinguishing module is larger than that of the first arc extinguishing fin, the voltage capacity of the second arc extinguishing module is large, and the second arc extinguishing module is suitable for direct current, when the switch arc extinguishing structure is used for alternating current, the number of the first arc extinguishing module to be installed is more, for direct current switch, more second arc extinguishing modules can be installed in the main shell, meanwhile, the larger the voltage grade of the direct current is, the more the number of the second arc extinguishing modules to be installed is, therefore, the switch arc extinguishing structure effectively uses different combination modes of the first arc extinguishing module and the second arc extinguishing module, is widely suitable for direct current switch, alternating current switch and alternating current switch with different voltage grades, and the universality of the switch arc extinguishing structure is improved.
[0023] 2、A plurality of same module mounting slots are arranged in the main shell, as long as the sizes of the first arc extinguishing module and the second arc extinguishing module are same, the module mounting slots can be inserted and clamped, the universality of the mounting position is effectively improved, and different combination modes of the first arc extinguishing module and the second arc extinguishing module are facilitated.
[0024] 3、A plurality of first fin mounting slots are arranged in the first shell, the first fin mounting slots are used for clamping and limiting the first arc extinguishing fin, and since the first fin mounting slots are sequentially arranged along the first direction, the first arc extinguishing fin is sequentially arranged along the first direction, and the first arc extinguishing fin is conducive to accommodating the first arc extinguishing fin with a larger size.
[0025] 4、A first gas production member is arranged in the first shell, the first gas production member is provided with a plurality of first pin accommodating slots, the first pin of the first arc extinguishing fin is inserted into the first pin accommodating slot, and the first gas production member is clamped through the cooperation of the buckle and the clamping hole, which is conducive to improving the space utilization rate in the first shell and facilitating the installation and dismounting of the first gas production member and the first shell.
[0026] 5、The first gas outlet of the first shell is provided with a dissociation elimination net plate. After the electric arc is treated by the first arc elimination grid, the electric arc leaves the first shell through the first gas outlet. The dissociation elimination net plate is used to avoid the gas passing through the first gas outlet having ionized particles, thereby improving the dissociation elimination effect of the first arc elimination module.
[0027] 6、The second shell is installed and fixed with the second arc elimination grid through the second grid installation slot, so that the second arc elimination grid is arranged in the second direction in sequence, so that the second shell can accommodate a larger number of second arc elimination grids, thereby improving the voltage capacity of the second arc elimination module.
[0028] 7、The second gas production part is arranged opposite to the second arc elimination grid and is used to accommodate the second pin. A magnetic enhancement sheet is arranged on the second gas production part, which is used to provide electromagnetic force for the second gas production part, so as to push the electric arc entering the second gas production part into the second arc elimination grid, thereby improving the arc elimination efficiency of the second arc elimination module.
[0029] 8、The second arc elimination module is provided with a third arc elimination grid. The third arc elimination grid includes an arc leading part arranged outside the second shell and an arc elimination part arranged in the second grid installation slot. Therefore, the arc leading part is used to lead the untreated electric arc into the arc elimination part and to be treated by the arc elimination part between a plurality of second arc elimination grids, thereby improving the arc elimination effect. BRIEF DESCRIPTION OF DRAWINGS
[0030] Figure 1 It is a perspective view of the switch arc elimination structure and the arrangement of the internal grid in the first embodiment.
[0031] Figure 2 It is a perspective view of the switch arc elimination structure and the arrangement of the internal grid in the second embodiment.
[0032] Figure 3 It is a perspective view of the switch arc elimination structure and the arrangement of the internal grid in the third embodiment.
[0033] Figure 4 It is a perspective view of the switch arc elimination structure and the arrangement of the internal grid in the fourth embodiment.
[0034] Figure 5 It is a perspective view of the switch arc elimination structure and the main shell in an embodiment.
[0035] Figure 6 It is a first perspective view of the first arc elimination module in an embodiment.
[0036] Figure 7 It is a second perspective view of the first arc elimination module in an embodiment.
[0037] Figure 8 It is a structural schematic view of the first arc elimination grid and the first shell in an embodiment.
[0038] Figure 9 This is a schematic diagram of the structure of the first gas-generating component in one embodiment.
[0039] Figure 10 This is a schematic diagram of the structure of the second arc-extinguishing module and the second arc-extinguishing grid in one embodiment.
[0040] Figure 11 This is a schematic diagram of the structure of the second arc-extinguishing module and the second housing in one embodiment.
[0041] Figure 12 This is a schematic diagram of the structure of the third arc-extinguishing grid in one embodiment.
[0042] Figure 13 This is a schematic diagram of the structure of the second gas-generating component in one embodiment.
[0043] Reference numerals: 100, Switch arc extinguishing structure; 10, First arc extinguishing module; 11, First arc extinguishing grid; 111, First pin; 12, First housing; 121, First grid mounting slot; 122, Snap-fit hole; 123, First arc extinguishing port; 124, First vent hole; 13, First gas generating component; 131, First pin receiving slot; 132, Buckle; 14, Anti-freezing mesh plate; 20, Second arc extinguishing module; 21, Second arc extinguishing grid; 22, Second housing; 221, Second grid mounting slot ; 222, Gas generating mounting slot; 223, Transition slot; 224, Second gas outlet; 225, Second arc extinguishing port; 23, Second gas generating component; 231, Second pin receiving slot; 232, Magnetic plate mounting slot; 233, Positioning protrusion; 234, Gas generating mounting protrusion; 24, Magnetizing plate; 241, Positioning hole; 25, Third arc extinguishing grid plate; 251, Arc ignition part; 252, Arc extinguishing part; 30, Main housing; 31, Module mounting slot; 32, Left housing; 33, Right housing; 34, Main gas outlet. Detailed Implementation
[0044] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.
[0045] like Figures 1 to 4 As shown, in one embodiment, a switch arc extinguishing structure 100 is provided, including a first arc extinguishing module 10, a second arc extinguishing module 20, and a main housing 30;
[0046] The first arc extinguishing module 10 includes a first arc extinguishing grid 11; the second arc extinguishing module 20 includes a second arc extinguishing grid 21. The size of the first arc extinguishing grid 11 is larger than that of the second arc extinguishing grid 21, and the number of second arc extinguishing grids 21 is greater than the number of first arc extinguishing grids 11.
[0047] And the main shell 30 is provided with an arc inlet, the arc inlet faces the switch and is used for the arc generated by the switch to enter, and the main shell 30 is provided with a plurality of mounting positions, and each mounting position is provided with a first arc extinguishing module 10 or a second arc extinguishing module 20.
[0048] The switch arc extinguishing structure 100 is provided with a plurality of mounting positions in the main shell 30, and the first arc extinguishing module 10 and the second arc extinguishing module 20 with different sizes and numbers of arc extinguishing fins are arranged, and the first arc extinguishing module 10 and the second arc extinguishing module 20 can be randomly combined and mounted on the plurality of mounting positions; since the size of the first arc extinguishing fin 11 in the first arc extinguishing module 10 is larger than that of the second arc extinguishing fin 21, the heat capacity of the first arc extinguishing module 10 is larger, and the first arc extinguishing module 10 is more suitable for alternating current; the number of the second arc extinguishing fin 21 in the second arc extinguishing module 20 is larger than that of the first arc extinguishing fin 11, and the voltage capacity of the second arc extinguishing module 20 is larger, and the second arc extinguishing module 20 is suitable for direct current; when the switch is used for arc extinguishing of alternating current, the number of the first arc extinguishing module 10 is more, and for direct current switch, more second arc extinguishing modules 20 can be installed in the main shell 30, at the same time, the greater the voltage grade of the direct current, the more the number of the second arc extinguishing module 20 required to be installed, therefore, the switch arc extinguishing structure 100 effectively uses different combination modes of the first arc extinguishing module 10 and the second arc extinguishing module 20, and is widely applicable to direct current switch, alternating current switch and alternating current switch with different voltage grades, and the versatility of the switch arc extinguishing structure 100 is improved.
[0049] Specifically, as shown in Figures 1 to 4 in an embodiment, the mounting position can be provided with 2, 3 or 4, and the number of the mounting position is determined according to the number of the switch circuit breaker, for example, if the switch is a 3-level circuit breaker, 3 mounting positions are provided.
[0050] At the same time, the module mounted on each mounting position can be the first arc extinguishing module 10 or the second arc extinguishing module 20, and the selection is specifically according to the alternating current or direct current of the circuit breaker and the voltage grade, therefore, all the first arc extinguishing modules 10 or all the second arc extinguishing modules 20 can be installed in one main shell 30, or the first arc extinguishing modules 10 and the second arc extinguishing modules 20 are mixedly installed.
[0051] Specifically, as shown in Figure 5 in an embodiment, the mounting position includes a module mounting groove 31, and a plurality of module mounting grooves 31 are arranged in sequence along a direction parallel to the arc inlet, and the first arc extinguishing module 10 and the second arc extinguishing module 20 can be inserted into the module mounting groove 31.
[0052] The plurality of identical module installation slots 31 are arranged in the main housing 30, and as long as the sizes of the first arc extinguishing module 10 and the second arc extinguishing module 20 are identical, the modules can be inserted into the module installation slots 31 for clamping, thereby effectively improving the versatility of the installation positions and facilitating the adaptation to different combination modes of the first arc extinguishing module 10 and the second arc extinguishing module 20.
[0053] Further, in an embodiment, the first arc extinguishing module 10 is provided with a first arc extinguishing port 123, and the second arc extinguishing module 20 is provided with a second arc extinguishing port 225. After the first arc extinguishing module 10 or the second arc extinguishing module 20 is inserted into the module installation slot 31, the directions of the first arc extinguishing port 123 and the second arc extinguishing port 225 are identical to the direction of the arc inlet.
[0054] In the specific embodiment, the module installation slot 31 of the main housing 30 is arranged on the side surface perpendicular to the arc inlet. At this time, the installation surface of the first arc extinguishing module 10 is arranged perpendicularly to the first arc extinguishing port 123, and the size of the installation surface of the first arc extinguishing module 10 is in interference fit with the size of the module installation slot 31. The installation surface of the second arc extinguishing module 20 is arranged perpendicularly to the second arc extinguishing port 225, and the size of the installation surface of the second arc extinguishing module 20 is in interference fit with the size of the module installation slot 31.
[0055] Further, the main housing 30 comprises a left housing 32 and a right housing 33 which are symmetrical to each other. The module installation slot 31 is arranged in each of the left housing 32 and the right housing 33. The left housing 32 and the right housing 33 can be detachably connected through screws or bayonets. During the installation or replacement of the modules, the left housing 32 and the right housing 33 can be first separated, the first arc extinguishing module 10 and the second arc extinguishing module 20 can be sequentially installed in the module installation slot 31 of the left housing 32, the module installation slot 31 of the right housing 33 can be then butted against the first arc extinguishing module 10 and the second arc extinguishing module 20, and finally the left housing 32 and the right housing 33 can be connected.
[0056] Specifically, as shown in FIGS. 1, 2 and 3, in an embodiment, the first arc extinguishing module 10 comprises a first housing 12, and a plurality of first fin installation slots 121 are arranged on the first housing 12. The plurality of first fin installation slots 121 are sequentially arranged along a first direction, and the included angle between the first direction and the plane where the arc inlet is located is 0°-45°. The first arc extinguishing fin 11 is inserted into the first fin installation slot 121. Figure 6 Figure 7 Figure 8
[0057] In the specific embodiment, the first direction is parallel to the arc inlet, the first arc extinguishing fins 11 are sequentially arranged along the first direction, and the plate surface of the first arc extinguishing fin 11 is perpendicular to the arc inlet.
[0058] A plurality of first grid mounting slots 121 are arranged in the first shell 12 to clasp and limit the first arc extinguishing grid 11. Since the first grid mounting slots 121 are arranged in the first direction in sequence, the first arc extinguishing grid 11 is also arranged in the first direction in sequence, which is conducive to accommodating a larger size of the first arc extinguishing grid 11.
[0059] Since the first shell 12 is provided with the first arc extinguishing port 123, the first arc extinguishing port 123 is parallel to the first direction.
[0060] Further, as shown in Figure 8 , in an embodiment, the first grid mounting slot 121 has an opening facing the first arc extinguishing port 123, so that the first grid mounting slot 121 is inserted into the first grid mounting slot 121 in the second direction, and the second direction is perpendicular to the first arc extinguishing port 123.
[0061] Further, as shown in Figure 6 , Figure 7 and Figure 9 , in an embodiment, the first arc extinguishing module 10 includes a first gas generating member 13 connected with the first shell 12, the first gas generating member 13 is provided with a plurality of first pin accommodating slots 131, the first arc extinguishing grid 11 is provided with a first pin 111 on one end facing the arc entrance, and the first pin 111 extends into the first pin accommodating slot 131. The first pin accommodating slots 131 are arranged in the first direction in sequence, and the first arc extinguishing grid 11 is provided with a first arc extinguishing slot on one side facing the arc entrance.
[0062] The first shell 12 is provided with the first gas generating member 13, the first gas generating member 13 is provided with a plurality of first pin accommodating slots 131, the first pin 111 of the first arc extinguishing grid 11 is inserted into the first pin accommodating slot 131, and the first gas generating member 13 is clamped by the buckle 132 and the clamping hole 122, which is conducive to improving the space utilization rate of the first shell 12, and facilitating the installation and disassembly of the first gas generating member 13 and the first shell 12.
[0063] Further, as shown in Figure 6 , Figure 7 and Figure 9 , in an embodiment, the first shell 12 is provided with a clamping hole 122, and the first gas generating member 13 is provided with a buckle 132, and the buckle 132 extends into the clamping hole 122. The clamping hole 122 is arranged on the side of the first shell 12 perpendicular to the arc entrance.
[0064] In the specific implementation, the first gas generating member 13 is provided with two first pins 111, and the two first pins 111 are respectively inserted into one of the two first gas generating members 13, and the two first gas generating members 13 are arranged opposite to each other in the third direction, and the third direction is perpendicular to the first direction and the second direction.
[0065] Further, in an embodiment, as shown in Figure 6 and Figure 8 , the first arc extinguishing module 10 comprises an ionization elimination screen 14, and the first housing 12 is provided with a first gas outlet 124 at an end away from the first arc extinguishing port 123, and the ionization elimination screen 14 is connected to the first housing 12 and covers the first gas outlet 124.
[0066] The first housing 12 is provided with the ionization elimination screen 14 at the first gas outlet 124, and the arc after being processed by the first arc extinguishing grid 11 exits the first housing 12 through the first gas outlet 124, and the ionization elimination screen 14 is used to avoid the gas passing through the first gas outlet 124 having ionized particles, thereby improving the ionization elimination effect of the first arc extinguishing module 10.
[0067] Further, in an embodiment, as shown in Figure 8 , the first housing 12 is provided with a plurality of support ribs arranged in the first direction at an end away from the first arc extinguishing port 123, and the first gas outlet 124 is formed between adjacent two support ribs, and the support rib is provided with a screen mounting groove, and the ionization elimination screen 14 is arranged in the screen mounting groove.
[0068] In addition, the screen mounting groove is provided with two, and the ionization elimination screen 14 is provided with two, and the ionization elimination screen 14 corresponds to the screen mounting groove one by one.
[0069] In the specific embodiment, the ionization elimination screen 14 comprises a plurality of layers of stainless steel woven screens, and the pore size of the plurality of layers of stainless steel woven screens decreases in sequence along the direction away from the first housing 12.
[0070] Specifically, as shown in Figure 10 and Figure 11 , in an embodiment, the second arc extinguishing module 20 comprises a second housing 22, and the second housing 22 is provided with a plurality of second grid mounting grooves 221, and the plurality of second grid mounting grooves 221 are arranged in sequence along a second direction, and the second direction forms an angle of 45°-90° with the plane where the arc entrance is located, and the second arc extinguishing grid 21 is inserted into the second grid mounting groove 221.
[0071] In the specific embodiment, the second direction is perpendicular to the arc entrance.
[0072] Among them, the second housing 22 is provided with a second arc extinguishing port 225, and the second arc extinguishing port 225 is in the same direction as the arc entrance, so the second direction is perpendicular to the second arc extinguishing port 225.
[0073] The second shell 22 installs, fixes the second arc-extinguishing grid 21 through the second grid mounting groove 221, arranges the second arc-extinguishing grid 21 in the second direction in turn, so that the second shell 22 can accommodate a larger number of second arc-extinguishing grids 21, thereby improving the voltage capacity of the second arc-extinguishing module 20.
[0074] In the embodiment, the first direction is parallel to the length direction of the main shell 30, the second direction is parallel to the height direction of the main shell 30, the third direction is parallel to the width direction of the main shell 30, the first direction and the third direction are parallel to the arc entrance, the second direction is perpendicular to the arc entrance, the size of the first shell 12 in the third direction is larger than the size in the first direction, the size in the second direction is larger than the size in the first direction, and the sizes of the first shell 12 and the second shell 22 are the same.
[0075] Therefore, in the first arc-extinguishing module 10, the first arc-extinguishing grids 11 are arranged in the first direction in turn, the width of the first arc-extinguishing grid 11 is parallel to the third direction, and the length of the first arc-extinguishing grid 11 is parallel to the second direction, so that a larger size of the first arc-extinguishing grid 11 can be realized, thereby improving the heat capacity of the first arc-extinguishing module 10.
[0076] In the second arc-extinguishing module 20, the second arc-extinguishing grids 21 are arranged in the second direction in turn, and in the case that the thickness of the second arc-extinguishing grid 21 is constant, the second shell 22 can accommodate a maximum number of second arc-extinguishing grids 21, thereby improving the voltage capacity of the second arc-extinguishing module 20.
[0077] In addition, the plurality of module mounting grooves 31 in the main shell 30 are also arranged in the first direction, so that a larger number of modules can be accommodated.
[0078] Further, as shown in Figure 11 and Figure 13 In an embodiment, the second arc-extinguishing module 20 includes a second gas generating member 23, the second shell 22 is provided with a gas generating mounting port perpendicular to the arc entrance, the second gas generating member 23 is connected with the second shell 22, the second gas generating member 23 is provided with a plurality of second pin accommodating grooves 231, and the second arc-extinguishing grid 21 is provided with a second pin on the end facing the gas generating mounting port, and the second pin extends into the second pin accommodating groove 231.
[0079] Among them, the second arc-extinguishing port 225 is in the same direction as the arc entrance, so the gas generating mounting port is perpendicular to the second arc-extinguishing port 225, and the second pin accommodating groove 231 is arranged in the second direction in turn.
[0080] Further, in an embodiment, the second arc-extinguishing fin 21 is provided with a second arc-extinguishing groove at one end facing the gas production mounting port, the second pin has two, and the second gas production member 23 is a U-shaped gas production member, the opening of the U-shaped gas production member faces the second arc-extinguishing groove, and the two side arms of the second gas production member 23 are each provided with a second pin accommodating groove 231, and the two second pins are respectively inserted into the second pin accommodating grooves 231 of the two side arms.
[0081] Further, as shown in Figure 10 an embodiment, the second housing 22 is provided with a second gas outlet 224 at one side away from the second gas production member 23, and the second housing 22 is provided with a plurality of support ribs at one side away from the second gas production member 23, and the gaps between the plurality of support ribs form the second gas outlet 224.
[0082] In the specific embodiment, as shown in Figure 5 , the main housing 30 is provided with a main gas outlet 34 at one side away from the arc inlet, and after the arc is extinguished by the first arc-extinguishing module 10 and the second arc-extinguishing module 20, it flows into the main housing 30 from the first gas outlet 124 and the second gas outlet 224 respectively, and then flows out of the main housing 30 through the main gas outlet 34.
[0083] Further, in an embodiment, the second gas production member 23 is provided with a magnetic enhancement piece 24 at one side away from the second arc-extinguishing fin 21. The second gas production member 23 is arranged opposite to the second arc-extinguishing fin 21 and is used to accommodate the second pin, and the magnetic enhancement piece 24 is further arranged on the second gas production member 23 to provide electromagnetic force for the second gas production member 23, so as to push the arc entering the second gas production member 23 into the second arc-extinguishing fin 21, which is conducive to improving the arc-extinguishing efficiency of the second arc-extinguishing module 20.
[0084] In the specific embodiment, the second gas production member 23 is provided with a magnetic piece mounting groove 232 at one side away from the second arc-extinguishing fin 21, the bottom of the magnetic piece mounting groove 232 is provided with a positioning protrusion 233, the magnetic enhancement piece 24 is provided with a positioning hole 241, the magnetic enhancement piece 24 is arranged in the magnetic piece mounting groove 232, and the positioning protrusion 233 is inserted into the positioning hole 241.
[0085] Further, in an embodiment, the second gas production member 23 is provided with a gas production mounting protrusion 234 at two sides, and the two side walls of the second housing 22 are provided with a gas production mounting groove 222, the gas production mounting protrusion 234 is inserted into the gas production mounting groove 222, which is used to connect the second gas production member 23 and the second housing 22, and limit the movement of the second gas production member 23.
[0086] Further, as shown in Figure 10 and Figure 12As shown in the embodiment, the second arc extinguishing module 20 includes two third arc extinguishing vanes 25, the third arc extinguishing vane 25 includes an arc leading part 251 and an arc extinguishing part 252 connected with each other perpendicularly, the arc extinguishing part 252 is inserted into the second vane mounting groove 221, the arc leading part 251 is arranged on the side of the second shell 22 through the second shell 22, and the two arc leading parts 251 are arranged on the opposite sides of the second shell 22 respectively.
[0087] The third arc extinguishing vane 25 is arranged on the second arc extinguishing module 20, the third arc extinguishing vane 25 includes the arc leading part 251 arranged outside the second shell 22 and the arc extinguishing part 252 arranged in the second vane mounting groove 221, therefore the arc leading part 251 is used for leading the untreated arc into the arc extinguishing part 252 and performing arc extinguishing treatment between the plurality of second arc extinguishing vanes 21 with the adjacent first arc extinguishing module 10 or the second arc extinguishing module 20, and the arc extinguishing effect is improved.
[0088] In the specific implementation, as Figure 11 shown, the two side walls of the second shell 22 are provided with transition grooves 223, the connecting position of the arc leading part 251 and the arc extinguishing part 252 is arranged in the transition groove 223, and the transition groove 223 is communicated with the gas generating mounting groove 222.
[0089] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0090] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0091] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0092] In the present application, unless otherwise expressly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0093] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.
[0094] The above detailed the preferred embodiments of the present application. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the present application shall be within the protection scope determined by the claims.
Claims
1. A switch arc-extinction structure, characterized by comprising: The utility model relates to a kind of arc extinguishing module, comprising: First arc extinguishing module (10), the first arc extinguishing module (10) includes first arc extinguishing fin (11); Second arc extinguishing module (20), the second arc extinguishing module (20) includes second arc extinguishing fin (21), the size of the first arc extinguishing fin (11) is greater than the second arc extinguishing fin (21), the number of the second arc extinguishing fin (21) is greater than the number of the first arc extinguishing fin (11); Main housing (30), the main housing (30) is equipped with arc entrance, and for the arc generated by switch enters, multiple mounting positions are equipped in the main housing (30), and one first arc extinguishing module (10) or second arc extinguishing module (20) is installed on each mounting position.
2. A switch arc-extinguishing structure according to claim 1, characterized in that The mounting position includes module installation slot (31), multiple module installation slots (31) are sequentially arranged along the direction parallel to the arc entrance, and the first arc extinguishing module (10) and the second arc extinguishing module (20) can be inserted into the module installation slot (31).
3. A switch arc-extinguishing structure according to claim 1, characterized in that The first arc extinguishing module (10) includes first housing (12), multiple first fin installation slots (121) are equipped on the first housing (12), multiple first fin installation slots (121) are sequentially arranged along first direction, and the included angle between the first direction and the plane where the arc entrance is located is 0 ° ~ 45 °;The first arc extinguishing fin (11) is inserted into the first fin installation slot (121).
4. A switch arc-extinguishing structure according to claim 3, characterized in that The first arc extinguishing module (10) includes first gas generator (13), and the first gas generator (13) is arranged in the first housing (12), multiple first pin accommodating grooves (131) are equipped on the first gas generator (13), and the end of the first arc extinguishing fin (11) facing the arc entrance is equipped with first pin (111), and the first pin (111) is inserted into the first pin accommodating groove (131).
5. A switch arc-extinguishing structure according to claim 4, characterized in that The first housing (12) is equipped with clamping hole (122), and the first gas generator (13) is equipped with buckle (132), and the buckle (132) is inserted into the clamping hole (122).
6. A switch arc-extinguishing structure according to claim 3, wherein The first arc extinguishing module (10) includes deionization net plate (14), and the end of the first housing (12) away from the arc entrance is equipped with first gas outlet (124), and the deionization net plate (14) is connected with the first housing (12) and covers the first gas outlet (124).
7. A switch arc-extinguishing structure according to claim 3, wherein The second arc extinguishing module (20) includes second housing (22), multiple second fin installation slots (221) are equipped on the second housing (22), multiple second fin installation slots (221) are sequentially arranged along second direction, and the second direction is perpendicular to the first direction;The second arc extinguishing fin (21) is inserted into the second fin installation slot (221).
8. The switch arc-extinguishing structure according to claim 1, wherein The second arc extinguishing module (20) comprises a second shell (22), a plurality of second grid mounting slots (221) are arranged on the second shell (22), and the second grid mounting slots (221) are arranged in sequence along a second direction, and the angle between the second direction and the plane where the arc entrance is located is 45°-90°; the second arc extinguishing grid (21) is inserted into the second grid mounting slot (221).
9. A switch arc-extinguishing structure according to claim 7 or 8, characterised in that The second arc extinguishing module (20) comprises a second gas generating part (23), a gas generating mounting port perpendicular to the arc entrance is arranged on the second shell (22), the second gas generating part (23) is arranged in the second shell (22), a plurality of second pin accommodating slots (231) are arranged on the second gas generating part (23), one end of the second arc extinguishing grid (21) facing the gas generating mounting port is provided with a second pin, and the second pin is inserted into the second pin accommodating slot (231).
10. A switch arc-extinguishing structure according to claim 9, characterized in that A magnetic enhancement sheet (24) is arranged on the side of the second gas generating part (23) away from the second arc extinguishing grid (21).
11. A switch arc-extinguishing structure according to claim 7 or 8, characterized in that The second arc extinguishing module (20) comprises two third arc extinguishing grids (25), the third arc extinguishing grid (25) comprises an arc leading part (251) and an arc extinguishing part (252) connected perpendicularly to each other, the arc extinguishing part (252) is inserted into the second grid mounting slot (221), the arc leading part (251) is arranged on the side of the second shell (22), and two arc leading parts (251) are arranged on opposite sides of the second shell (22).