CN116759255A - Travel switch - Google Patents
Travel switch Download PDFInfo
- Publication number
- CN116759255A CN116759255A CN202310721301.2A CN202310721301A CN116759255A CN 116759255 A CN116759255 A CN 116759255A CN 202310721301 A CN202310721301 A CN 202310721301A CN 116759255 A CN116759255 A CN 116759255A
- Authority
- CN
- China
- Prior art keywords
- shell
- travel switch
- heat
- mandrel
- static contact
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 239000012774 insulation material Substances 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims description 35
- 239000011810 insulating material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000004642 Polyimide Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- QRNPTSGPQSOPQK-UHFFFAOYSA-N magnesium zirconium Chemical compound [Mg].[Zr] QRNPTSGPQSOPQK-UHFFFAOYSA-N 0.000 claims 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
A travel switch comprises a rear cover, a connector, a conducting strip, a tail cover, a shell combination and a pushing mechanism, wherein the pushing mechanism is arranged in the shell combination and further comprises an actuating piece combination; the actuator assembly comprises an actuator, the upper part of the actuator protrudes out of the shell assembly, a cavity is formed in the interior of the actuator, and the cavity in the actuator is filled with heat insulation materials. By implementing the invention, the heat insulation mechanism is arranged on the travel switch to insulate heat contacting with a high-temperature part, so that the heat transferred to the interior of the travel switch is greatly reduced, the problem of poor working stability of the travel switch in a high-temperature environment is effectively solved, and the travel switch can still normally work even under the unfavorable conditions of high impact, vibration and the like in the high-temperature environment at the same time, thereby meeting application requirements.
Description
Technical Field
The invention belongs to the technical field of travel switches, and particularly relates to a travel switch capable of meeting the environmental temperature of 900 ℃.
Background
Along with the rapid development of the whole machine system, the requirement on the temperature of the split Guan Naigao is higher and higher, and the switch actuating part needs to be exposed to extremely high temperature, so that the travel switch for the original whole machine system cannot meet the requirement on high temperature. The invention discloses a travel switch with multiple paths of signals, which comprises a static contact and a movable contact, wherein the static contact is arranged on a wire connecting pin, an even number of supporting seat ring cloths are arranged on a base plate to form a cage-type contact ring, the arrangement form of contact groups of a contact system is changed, the number of contact groups is increased, and the working reliability of the control system is improved. Although the multi-channel signal is output simultaneously, stable signal transmission is difficult to realize in a high-temperature environment.
The existing high-temperature-resistant travel switch comprises a roller arm type, an adjustable rod type, a pressing column type, a spring probe type and the like, wherein a high-temperature-resistant material is adopted in the travel switch, and contacts are subjected to special treatment so as to work normally in a high-temperature environment. In the prior art, a travel switch subjected to high-temperature resistant treatment or related to the travel switch can only adapt to the environment of 200-600 ℃, and if high impact and vibration exist at the same time, the travel switch is difficult to bear, and the switch is easy to damage and jam. In practical applications, there are often some extreme environments, such as a high temperature environment above 900 ℃, and it is difficult for the existing travel switch to meet the application requirements.
Disclosure of Invention
In order to solve the technical problems, the invention provides a travel switch. The invention is realized by the following technical scheme.
The invention provides a travel switch, which comprises a rear cover, a connector, a conducting strip, a tail cover, a shell combination and a pushing mechanism, wherein the pushing mechanism is arranged in the shell combination; the pushing mechanism further comprises an actuating piece combination, a static contact system, a dynamic contact system, a spring and a guide sleeve, wherein the dynamic contact system is arranged in the actuating piece combination; the guide sleeve is sleeved in the actuator assembly, the front end of the guide sleeve props against the step of the shell, and the movable contact system passes through the middle of the guide sleeve; the spring is arranged in the movable contact system; the static contact system is arranged in the actuator assembly and is fixedly connected with the actuator assembly; the actuator assembly comprises an actuator, the upper part of the actuator protrudes out of the shell assembly, a cavity is formed in the interior of the actuator, and the cavity in the actuator is filled with heat insulation materials.
Further, when the internal cavity of the actuating element is filled with the heat insulating material, the heat insulating material is used as powder to be pressed to form a first heat insulating mandrel, and the first heat insulating mandrel is installed in the internal cavity of the actuating element.
Further, the movable contact system comprises a positioning disc, a mandrel, a second heat insulation mandrel, an outer insulation bushing, a movable contact, an inner insulation bushing and a positioning sleeve; the positioning sleeve, the outer insulating bush, the inner insulating bush and the second heat insulation mandrel are sleeved on the outer wall of the mandrel from bottom to top in sequence; the second heat insulation core shaft is sleeved between the step protruding towards the outer edge and the inner insulation sleeve, which are arranged on the core shaft; the movable contact is arranged at the intersection of the outer insulating bush and the inner insulating bush; the positioning disc is arranged in a step end groove arranged on the outer circle of the top end of the mandrel.
Further, the static contact system comprises a static contact piece, a base, a wiring pin and a supporting piece, wherein a plurality of mounting holes are formed in the base, the wiring pin is fixed in the corresponding hole of the base, and the static contact piece, the wiring pin and the supporting piece are connected into a whole.
Further, the materials used for the inner insulating bush and the outer insulating bush are plastics with high insulating property, and polyimide is preferred.
Furthermore, the positioning disc and the mandrel are welded into a whole, the mandrel is in interference fit with the cavity of the actuating element, the mandrel is jacked into the cavity of the actuating element, and the positioning disc at the top of the mandrel is tightly jacked to the lower end of the heat insulation material filled in the cavity inside the actuating element.
Further, the shell combination comprises a shell and a heat insulation shell, sliding holes are formed in the shell and the heat insulation shell, the pushing mechanism is installed in the shell combination, and an actuating piece in the pushing mechanism is in clearance fit with the sliding holes.
Further, the number of the static contact pieces is more than one, the number of the static contact pieces corresponds to the number of the corresponding holes on the base, and when the static contact pieces are installed on the base, a contact circle is formed by surrounding the static contact pieces.
Further, a static contact piece in the static contact system is contacted with a movable contact in the movable contact system, the switch is in a conducting state, and after an actuating piece in the actuating piece combination is compressed, the static contact piece is contacted with the inner insulation bushing, and the switch is switched to a disconnecting state.
Furthermore, the heat-insulating shell is made of high-temperature-resistant magnesia-zirconia ceramic materials, and a large amount of heat is prevented from being transferred from the mounting panel to the shell through the heat-insulating shell, so that the temperature of the outer cover contacted with the shell is prevented from being too high.
The invention has the beneficial effects that: through the implementation of the invention, the heat insulation mechanisms are arranged on the travel switch to isolate the heat contacting with the high-temperature part, so that the heat transferred to the interior of the travel switch is greatly reduced, the problem of poor working stability of the travel switch in a high-temperature environment is effectively solved, and the travel switch can still normally work even under the unfavorable conditions of high impact, vibration and the like in the high-temperature environment at the same time, thereby meeting the application requirements.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a pushing mechanism;
FIG. 3 is a schematic diagram of the structure of a stationary contact system;
FIG. 4 is a schematic diagram of a dynamic contact system;
FIG. 5 is a schematic view of an actuator assembly;
FIG. 6 is a schematic view of the structure of the housing assembly;
FIG. 7 is a top view of FIG. 6 in accordance with the present invention;
in the figure: 1-rear cover, 2-connector, 3-conducting strip, 4-nut, 5-tail cover, 6-shell combination, 7-pushing mechanism, 8-static contact system, 9-spring, 10-uide bushing, 11-dynamic contact system, 12-first heat insulation core shaft, 13-actuator combination, 14-wiring pin, 15-base, 16-bracket, 17-static contact strip, 18-positioning sleeve, 19-outer insulation bush, 20-movable contact, 21-inner insulation bush, 22-second heat insulation core shaft, 23-core shaft, 24-positioning disk, 25-shell, 26-heat insulation shell, 27-screw, 28-base, 29-ripple membrane, 30-actuator.
Detailed Description
The technical solutions of the present invention are further described below, but the scope of the claims is not limited thereto.
As shown in fig. 1, a travel switch includes a rear cover 1, a connector 2, a conductive piece 3, a nut 4, a tail cover 5, a housing assembly 6, and a pushing mechanism 7. As shown in fig. 2, the pushing mechanism comprises a static contact system 8, a spring 9, a guide sleeve 10, a dynamic contact system 11, a heat insulation mandrel 12 and an actuator assembly 13. The static contact piece 17 in the static contact system 8 is contacted with the movable contact 20 in the movable contact system 11, the switch is in a conducting state, and after the actuating piece 30 in the actuating piece combination 13 is compressed, the static contact piece 17 is contacted with the inner insulating bush 21, and the switch is switched to an off state. The spring 9 provides restoring force for the pushing mechanism, the guide sleeve 10 is in small clearance fit with the movable contact system 11, the guide and limit functions are achieved on the movable contact system 11, the static contact system 8 and the actuator assembly 13 are connected together through laser welding, and the fixing and sealing functions are achieved.
As shown in fig. 3, the stationary contact system 8 includes a pin 14, a base 15, a blade 16, and a stationary contact 17. The static contact pieces 17, the supporting pieces 16 and the wire connecting pins 14 are connected together through riveting, soldering tin is added at the riveting place for reinforcement, eight static contact pieces 17 form a contact circle after being riveted, the contact circle enables the switch to be more stable and reliable, and the rear end face of the base 15 is printed with numbers to distinguish the wire connecting pins.
As shown in fig. 4-5, the moving contact system comprises a positioning sleeve 18, an outer insulating bush 19, a moving contact 20, an inner insulating bush 21, a second insulating mandrel 22, a mandrel 23 and a positioning disk 24. The positioning disk 24 and the mandrel 23 are fixed by laser welding, so that the positioning disk has enough strength to support the spring 9. The material of the second heat insulation core shaft 22 is heat insulation material, so that the heat transferred to the core shaft 23 by the actuating element 30 passes through the second heat insulation core shaft 22 and then is transferred to the inner insulation bushing 21, the heat is greatly reduced, and the non-metal part inner insulation bushing 21 is better ensured not to be damaged. The shell combination 6 is provided with a sliding hole, and consists of a shell 25 and a heat insulation shell 26, an actuating piece 30 in the pushing mechanism 7 is in clearance fit with the sliding hole, the pushing mechanism 7 is arranged in the shell combination 6, the tail cover 5 is assembled on the shell combination 6, the tail cover 4 is screwed down, the rear cover 1 is assembled on the tail end of the tail cover 5, the conducting strip 3 is welded on the tail terminal pins 14 of the pushing mechanism 7, the 1# wire pins, the 3# wire pins, the 5# wire pins and the 7# wire pins are in one group, the 2# wire pins, the 4# wire pins, the 6# wire pins and the 8# wire pins are in one group, the design is redundant, the connector is assembled on the tail cover 5 through screws, and the connector wires are connected with the conducting strip.
In the above embodiment, on the one hand, the heat insulation shell 26 in the product shell combination 6 is in contact with the installation panel for installing the product, and the heat insulation shell 26 is made of heat insulation material, so that the high temperature of the external environment is greatly reduced after being transferred to the shell 25 through the heat insulation shell 26, and the non-metal parts in the switch, namely the outer insulation bushing 19, the inner insulation bushing 21 and the guide sleeve 10, are not damaged. On the other hand, the hollow inner cavity of the actuating element 30 in the switch pushing mechanism 7 is filled with heat insulation materials, namely the first heat insulation mandrel 12, so that the heat of the external environment is greatly reduced after being transmitted to the movable contact system 11 through the actuating element 30, and further, the non-metal parts inside the switch, namely the outer insulation bushing 19, the inner insulation bushing 21 and the guide sleeve 10, are not damaged.
As shown in fig. 5, the actuator assembly includes an actuator 30, a corrugated diaphragm 29, and a base 28, the actuator 30 being hollow inside for mounting the first insulating mandrel 12 or filling with insulating material.
As shown in fig. 6-7, the housing assembly includes a housing 25, an insulated housing 26, and screws 27. The housing 25 and the insulating housing 26 are coupled together by screws 27, and external heat is transferred to the insulating housing 26 and then to the housing 25, since the insulating housing 26 is made of an insulating material, the heat transferred to the housing 25 is considerably reduced.
When the switch is in operation, the external force presses the actuating piece 30 in the pushing mechanism 7, the actuating piece 30 moves towards the inside of the switch to drive the movable contact system 11 to move, so that the movable contact 20 in the movable contact system 11 is disconnected from the static contact piece 17 in the static contact system 8, after the external force is canceled, the pushing mechanism 7 is reset under the action of the spring 9, and the static contact piece 17 is contacted with the movable contact 20, so that the on-off of the switch is realized.
In addition, when the travel switch works, the travel switch can move at a high speed in the air, the front end of the actuating element 30 can generate high temperature of more than 900 ℃, in order to avoid the high temperature from being transmitted into the switch, the interior of the actuating element 30 is hollowed out, the actuating element 30 is made to form a thin-wall structure, the cross-sectional area of the actuating element 30 for transmitting heat inwards is reduced, and then the heat insulation material is filled in the inner cavity, so that the heat at the front end of the actuating element 30 is effectively prevented from being transmitted to the interior. The heat insulation material is a columnar part formed by powder pressing, and is subjected to laser welding with the mandrel 23 through the positioning disc 24, and the mandrel 23 is in interference fit with the actuating piece 30, so that the heat insulation material is effectively prevented from falling into the interior to cause excessive materials.
The material of the inner insulating bush 21 is plastic with high insulating property, and PPS, polyimide, phenolic glass fiber plastic, polytetrafluoroethylene and the like can be selected, but polyimide with better strength and insulating property and self-lubricating function is preferably selected in consideration of strength, insulating property and friction force. In order to ensure the reliability of the inner insulating material, the inner insulating bush 21 is axially separated from the radially outwardly extending part of the mandrel 23 by a second heat insulating mandrel 22, and the second heat insulating mandrel 22 is made of magnesia-zirconia ceramics with better toughness, high temperature resistance and lower heat conductivity coefficient, so that the inner insulating bush is effectively prevented from being influenced by high temperature, and the reliability of the inner insulating bush is ensured. The outer insulating bush 19 is similar to the inner insulating bush 21, and is polyimide with good strength and insulating property, low thermal conductivity and self-lubricating effect. The heat conductivity of the inner insulating bush is smaller, and the heat conduction sectional area of the inner insulating bush 21 is smaller; the second heat insulation core shaft 22 is also in an annular sleeve shape, the heat conduction sectional area is smaller, and the core shaft 23 at the second heat insulation core shaft 22 is of a thin-wall metal structure, so that heat is further prevented from being transferred to the inside.
The heat insulating housing 26 is a mounting flange, and a material with enough strength is required to be selected as a mounting surface, and the heat transferred to the heat insulating housing by the mounting surface plate is considered, so that the heat conductivity of the heat insulating housing is considered, and the heat insulating housing 26 is made of high-temperature-resistant magnesia-zirconia ceramics by comprehensively considering, so that the high temperature transfer of the mounting surface plate to the housing 25 can be effectively avoided.
The heat insulation housing 26 prevents a large amount of heat from being transferred from the mounting panel to the housing 25, thereby avoiding excessive temperatures of the tail hood 5; the heat transferred from the front end of the actuating element 30 to the inside is effectively reduced through the actuating element 30 and the inner heat insulation core shaft 12 thereof, and then the heat transfer to the inside is reduced through the second heat insulation core shaft 22, the inner insulation bushing 21 and the outer insulation bushing 19. The reliable connection of the product contacts is ensured, and the tail connector 2 and the wires are also ensured not to be damaged by high temperature, so that the connector can work reliably. The product is designed in a layer-by-layer progressive and layer-by-layer heat insulation way, so that the high temperature resistance of the product is ensured.
Claims (10)
1. A travel switch, characterized in that: the device comprises a rear cover, a connector, a conducting strip, a tail cover, a shell combination and a pushing mechanism, wherein the pushing mechanism is arranged in the shell combination, the upper part of the tail cover is connected with the shell combination, the connector is arranged on the tail cover, and the connector is connected with the lower part of the pushing mechanism through the conducting strip;
the pushing mechanism further comprises an actuating piece combination, a static contact system, a dynamic contact system, a spring and a guide sleeve, wherein the dynamic contact system is arranged in the actuating piece combination; the guide sleeve is sleeved in the actuator assembly, the front end of the guide sleeve props against the step of the shell, and the movable contact system passes through the middle of the guide sleeve; the spring is arranged in the movable contact system; the static contact system is arranged in the actuator assembly and is fixedly connected with the actuator assembly; the actuator assembly comprises an actuator, the upper part of the actuator protrudes out of the shell assembly, a cavity is formed in the interior of the actuator, and the cavity in the actuator is filled with heat insulation materials.
2. The travel switch of claim 1, wherein: when the inner cavity of the actuating element is filled with the heat insulating material, the heat insulating material is used as powder to be pressed to form a first heat insulating core shaft, and the first heat insulating core shaft is installed in the inner cavity of the actuating element.
3. The travel switch of claim 1, wherein: the movable contact system comprises a positioning disc, a mandrel, a second heat insulation mandrel, an outer insulation bushing, a movable contact, an inner insulation bushing and a positioning sleeve; the positioning sleeve, the outer insulating bush, the inner insulating bush and the second heat insulation mandrel are sleeved on the outer wall of the mandrel from bottom to top in sequence; the second heat insulation core shaft is sleeved between the step protruding towards the outer edge and the inner insulation sleeve, which are arranged on the core shaft; the movable contact is arranged at the intersection of the outer insulating bush and the inner insulating bush; the positioning disc is arranged in a step end groove arranged on the outer circle of the top end of the mandrel.
4. The travel switch of claim 4, wherein: the static contact system comprises a static contact piece, a base, wiring pins and a support piece, wherein a plurality of mounting holes are formed in the base, the wiring pins are fixed in corresponding holes of the base, and the static contact piece, the wiring pins and the support piece are connected into a whole.
5. A travel switch as defined in claim 3, wherein: the material used for the inner insulating bush and the outer insulating bush is plastic with high insulating property, and polyimide is preferred.
6. A travel switch as defined in claim 3, wherein: the positioning disc and the mandrel are welded into a whole, the mandrel is in interference fit with the cavity of the actuating element, the mandrel is jacked into the cavity of the actuating element, and the positioning disc at the top of the mandrel is tightly jacked to the lower end of the heat insulation material filled in the cavity inside the actuating element.
7. The travel switch of claim 1, wherein: the shell combination comprises a shell and a heat insulation shell, sliding holes are formed in the shell and the heat insulation shell, the pushing mechanism is installed in the shell combination, and an actuating piece in the pushing mechanism is in clearance fit with the sliding holes.
8. The travel switch of claim 4, wherein: the number of the static contact pieces is corresponding to the number of the corresponding holes on the base, and when the static contact pieces are installed on the base, a contact circle is formed by surrounding the static contact pieces.
9. The travel switch of claim 5, wherein: the static contact piece in the static contact system is contacted with the movable contact in the movable contact system, the switch is in a conducting state, and after the actuating piece in the actuating piece combination is compressed, the static contact piece is contacted with the inner insulation bushing, and the switch is switched into a disconnecting state.
10. The travel switch of claim 7, wherein: the heat-insulating shell is made of high-temperature-resistant magnesium-zirconium ceramic materials, and a large amount of heat is prevented from being transferred from the installation panel to the shell through the heat-insulating shell, so that the temperature of the outer cover contacted with the shell is prevented from being too high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310721301.2A CN116759255A (en) | 2023-06-16 | 2023-06-16 | Travel switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310721301.2A CN116759255A (en) | 2023-06-16 | 2023-06-16 | Travel switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116759255A true CN116759255A (en) | 2023-09-15 |
Family
ID=87947400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310721301.2A Pending CN116759255A (en) | 2023-06-16 | 2023-06-16 | Travel switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116759255A (en) |
-
2023
- 2023-06-16 CN CN202310721301.2A patent/CN116759255A/en active Pending
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