CN116131037B - Explosion-proof type power adapter - Google Patents
Explosion-proof type power adapter Download PDFInfo
- Publication number
- CN116131037B CN116131037B CN202310196051.5A CN202310196051A CN116131037B CN 116131037 B CN116131037 B CN 116131037B CN 202310196051 A CN202310196051 A CN 202310196051A CN 116131037 B CN116131037 B CN 116131037B
- Authority
- CN
- China
- Prior art keywords
- arc
- explosion
- shape memory
- memory polymer
- shaped metal
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/323—Thermally-sensitive members making use of shape memory materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
- H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention is applicable to the technical field of power adapters, and provides an explosion-proof power adapter which comprises an adapter main body, wherein the adapter main body comprises a shell and a power control module, the power control module is provided with an input terminal group, the input terminal group comprises a first terminal and a second terminal which are adjacently arranged at intervals, the first terminal and the second terminal are respectively and integrally connected with a first arc-shaped metal elastic sheet and a second arc-shaped metal elastic sheet, the first arc-shaped metal elastic sheet and the second arc-shaped metal elastic sheet are oppositely arranged and elastically abutted, and a shape memory polymer sheet is arranged in the adapter main body. The shape memory polymer sheet can be changed from an arc shape into a straight shape under the set temperature or current, so that the first arc-shaped metal elastic sheet and the second arc-shaped metal elastic sheet are propped open and are separated from contact physically, the input terminal group is opened physically, the power input is cut off, the explosion-proof reliability is good, and the shape memory polymer sheet can be applied to occasions with high explosion-proof requirements such as LED power supplies and mines.
Description
Technical Field
The invention belongs to the technical field of power adapters, and particularly relates to an explosion-proof power adapter.
Background
The power adapter can be automatically closed when overload is carried out on the electric charge, so that a protection effect is achieved. However, the existing power adapter has a single structure, and is generally only protected by an electronic temperature controller integrated on a circuit board, so that the explosion-proof effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an explosion-proof power adapter with good explosion-proof effect.
The technical scheme of the invention is as follows: the utility model provides an explosion-proof power adapter, includes the adapter main part, the adapter main part includes casing and power control module, the casing includes casing and lower casing, go up the casing with lower casing is to setting up and is formed the installation cavity, power control module set up in the installation cavity, power control module has the input terminal group, the input terminal group is including the first terminal and the second terminal that adjacent interval set up, first terminal integral connection has first arc metal shrapnel, second terminal integral connection has second arc metal shrapnel, first arc metal shrapnel with second arc metal shrapnel sets up in opposite directions and elasticity butt, be provided with in the adapter main part can with first arc metal shrapnel and second arc metal shrapnel are to the shape memory polymer piece of separation, shape memory polymer piece is the arc, shape memory polymer piece one end support in first arc metal shrapnel, the other end of shape memory polymer piece support in second arc metal shrapnel.
Specifically, the lower end of the first arc-shaped metal elastic piece is connected to the first terminal, and the upper end of the first arc-shaped metal elastic piece is provided with a first upper bent buckle; the lower end of the second arc-shaped metal elastic sheet is connected with the second terminal, a second upper bent buckle is arranged at the upper end of the second arc-shaped metal elastic sheet, and two ends of the shape memory polymer sheet are inserted into the first upper bent buckle and the second upper bent buckle.
Specifically, the contact point of the first arc-shaped metal elastic sheet and the second arc-shaped metal elastic sheet is positioned below the middle part of the shape memory polymer sheet.
Specifically, a spacer that can be inserted between contact points is provided below the middle portion of the shape memory polymer sheet.
Specifically, the contact point of the first arc-shaped metal spring piece and the second arc-shaped metal spring piece is provided with a gold plating layer.
Specifically, a lever is provided above the middle of the shape memory polymer sheet.
Specifically, the upper shell and the lower shell are fixed through ultrasonic welding.
Specifically, the power control module is provided with a temperature sensor.
Specifically, the shape memory polymer sheet is provided with at least one of conductive carbon black, metal powder and conductive polymer material.
Specifically, the power supply control module is connected with an over-temperature prompting device.
The shape memory polymer sheet can be changed from an arc shape to a straight shape under the set temperature or current, namely the distance between two ends is increased, so that the first arc metal elastic sheet and the second arc metal elastic sheet are propped to be separated from contact physically, the input terminal group is opened physically, the power input is cut off, the explosion-proof reliability is good, and the shape memory polymer sheet can be applied to occasions with explosion-proof requirements such as LED power supplies and mines.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic plan view of an explosion-proof power adapter according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an explosion-proof power adapter according to an embodiment of the present invention;
fig. 3 is a schematic plan view of a part of an input terminal set (where a first arc-shaped metal spring and a second arc-shaped metal spring are connected) in an explosion-proof power adapter according to an embodiment of the present invention;
fig. 4 is a schematic partial plan view of an input terminal set (a first arc-shaped metal spring and a second arc-shaped metal spring are propped apart by a shape memory polymer sheet) in an explosion-proof power adapter according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that, in the embodiments of the present invention, terms such as left, right, up, and down are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.
As shown in fig. 1 to 4, the explosion-proof power adapter provided by the embodiment of the invention comprises an adapter main body 100, wherein the adapter main body 100 comprises a housing and a power control module, the housing comprises an upper housing 110 and a lower housing 120, the upper housing 110 and the lower housing 120 are arranged in a butt joint way to form a closed mounting cavity 101, the power control module is arranged in the mounting cavity 101, the power control module is provided with an input terminal group, the input terminal group comprises a first terminal 210 and a second terminal 220 which are adjacently arranged at intervals, the first terminal 210 is integrally connected with a first arc-shaped metal spring sheet 310, the second terminal 220 is integrally connected with a second arc-shaped metal spring sheet 320, the first arc-shaped metal spring sheet 310 and the second arc-shaped metal spring sheet 320 are oppositely arranged and elastically abutted, a shape memory polymer sheet 410 is arranged in the adapter main body 100, the two ends of the shape memory polymer sheet 410 are respectively connected with the first arc metal spring 310 and the second arc metal spring 320, the shape memory polymer sheet 410 can prop the first arc metal spring 310 and the second arc metal spring 320 open to separate, the shape memory polymer sheet 410 is arc-shaped (can be straight line under the set temperature or current condition), one end of the shape memory polymer sheet 410 is propped against the first arc metal spring 310, the other end of the shape memory polymer sheet 410 is propped against the second arc metal spring 320, the shape memory polymer sheet 410 is made of shape memory polymer material (SMP), the initial state can be straight line (initial condition), after the initial condition is changed and fixed to arc under the set temperature or current condition, the original shape (straight shape) can be restored by stimulation with external conditions (temperature or current). In this way, the shape memory polymer sheet 410 can be changed from arc shape to straight shape under the set temperature or current, namely the distance between two ends is increased, so that the first arc metal elastic sheet 310 and the second arc metal elastic sheet 320 are spread to be separated from contact physically, the input terminal group is opened physically, the power input is cut off, the explosion-proof reliability is good, and the shape memory polymer sheet can be applied to occasions with explosion-proof requirements such as LED power sources and mines.
Specifically, the lower end of the first arc-shaped metal elastic piece 310 is connected to the power terminal (the first terminal 210), and the upper end of the first arc-shaped metal elastic piece 310 is provided with a first upper bent buckle 311; the lower extreme of second arc metal shell fragment 320 connect in power supply terminal (second terminal 220), the upper end of second arc metal shell fragment 320 is provided with second and goes up curved knot 321, shape memory polymer piece 410's both ends insert in first and second are gone up curved knot 311, shape memory polymer piece 410's middle part is upwards arched, and shape memory polymer piece 410's assembly is simple and convenient, and can be convenient for change.
Specifically, the contact points of the first arc-shaped metal dome 310 and the second arc-shaped metal dome 320 are located below the middle of the shape memory polymer sheet 410. The spacer 420 which can be inserted between the contact points is arranged below the middle part of the shape memory polymer sheet 410, the spacer 420 is made of insulating material (such as silica gel), the upper end of the spacer 420 can be an integrally formed lantern ring, the lantern ring is sleeved at the middle part of the shape memory polymer sheet 410, when the shape memory polymer sheet 410 is deformed linearly, as the first arc-shaped metal elastic sheet 310 and the second arc-shaped metal elastic sheet 320 are oppositely arranged left and right, under the limit of the first arc-shaped metal elastic sheet 310 and the second arc-shaped metal elastic sheet 320, the two ends of the arc-shaped shape memory polymer sheet 410 respectively extend left and right, and when the first arc-shaped metal elastic sheet 310 and the second arc-shaped metal elastic sheet 320 are spread, the middle part of the shape memory polymer sheet 410 moves downwards, so that the spacer 420 moves downwards to between the contact points of the first arc-shaped metal elastic sheet 310 and the second arc-shaped metal elastic sheet 320, thus avoiding the occurrence of electric arcs, and being safe, reliable and better.
Specifically, the contact points of the first arc-shaped metal spring plate 310 and the second arc-shaped metal spring plate 320 are provided with a gold plating layer, so that the conductive effect is good.
Specifically, the operating lever 430 is disposed above the middle of the shape memory polymer sheet 410, which is convenient for testing during assembly, and ensures that the first arc-shaped metal spring 310 and the second arc-shaped metal spring 320 can be stretched (when the operating lever 430 is pressed down by a set amount), and the reject ratio of the product is low. The upper end of the operating rod 430 may be provided with a magnetic sleeve 440, the magnetic sleeve 440 is close to the inner side of the upper housing 110, in an emergency state, the operating rod 430 may be pressed downward by using the principle of homopolar repulsion by a set magnet member, so that the middle part of the shape memory polymer sheet 410 is pressed down by the action of the magnetic force, the first arc metal elastic sheet 310 and the second arc metal elastic sheet 320 are opened, the contact point is separated from contact to cut off the power supply, and the power supply can be cut off by a manual non-contact mode of a user, so that the safety and reliability are good.
Specifically, the upper case 110 and the lower case 120 are fixed by ultrasonic welding, and the sealing effect is good.
Specifically, the power supply control module is provided with a temperature sensor, and the explosion-proof power supply adapter can be powered off through the temperature sensor, so that the effect of double guarantee is achieved.
Specifically, the shape memory polymer sheet 410 may be optionally provided with at least one of conductive carbon black, metal powder and conductive polymer material; the shape memory polymer sheet 410 may be configured to return the shape memory polymer sheet 410 to its original shape under a set current range. The resistance of the shape memory polymer sheet 410 is relatively large, and after the contact points of the first arc metal spring sheet 310 and the second arc metal spring sheet 320 are separated, the current passing through the shape memory polymer sheet 410 is small, so that the input of a power supply can be basically cut off, and the shape memory polymer sheet can be applied to some special scenes, such as the field of lighting equipment, for example, by switching the lighting equipment to a low-light and weak-light state, a user is prompted to check and replace the power supply adapter.
Specifically, the inside of the adapter body 100 is provided with a molding compound, and the upper ends of the first terminal 210 and the second terminal 220, the first arc-shaped metal spring 310 and the second arc-shaped metal spring 320, and the shape memory polymer sheet 410 are located outside the molding compound.
Specifically, the power supply control module is connected with an over-temperature prompting device, and the over-temperature prompting device can be an indicator lamp, a buzzer and the like.
According to the explosion-proof power adapter provided by the embodiment of the invention, the shape memory polymer sheet 410 can be changed from an arc shape into a straight shape at a set temperature or current, namely, the distance between two ends is increased, so that the first arc metal elastic sheet 310 and the second arc metal elastic sheet 320 are spread to be separated from contact physically, the input terminal group is physically disconnected, the power input is cut off, the explosion-proof reliability is good, and the explosion-proof power adapter can be applied to occasions with explosion-proof requirements such as LED power supplies and mines.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides an explosion-proof power adapter, includes the adapter main part, its characterized in that, the adapter main part includes casing and power control module, the casing includes casing and lower casing, go up the casing with lower casing involutes and sets up and form the installation cavity, power control module set up in the installation cavity, power control module has the input terminal group, the input terminal group is including adjacent first terminal and the second terminal that the interval set up, first terminal integral connection has first arc metal shrapnel, second terminal integral connection has second arc metal shrapnel, first arc metal shrapnel with second arc metal shrapnel sets up in opposite directions and elasticity butt, be provided with in the adapter main part can with first arc metal shrapnel and second arc metal shrapnel struts to the shape memory polymer piece of separation, shape memory polymer piece is the arc, shape memory polymer piece one end support in first arc metal shrapnel, the other end support of shape memory polymer piece in second arc metal shrapnel.
2. The explosion-proof power adapter as set forth in claim 1, wherein the lower end of the first arc-shaped metal spring is connected to the first terminal, and the upper end of the first arc-shaped metal spring is provided with a first upper buckle; the lower end of the second arc-shaped metal elastic sheet is connected with the second terminal, a second upper bent buckle is arranged at the upper end of the second arc-shaped metal elastic sheet, and two ends of the shape memory polymer sheet are inserted into the first upper bent buckle and the second upper bent buckle.
3. The explosion-proof power adapter as set forth in claim 2, wherein the contact point of said first arcuate metal dome and said second arcuate metal dome is located below the middle of said shape memory polymer sheet.
4. An explosion-proof power adapter as set forth in claim 3, wherein said shape memory polymer sheet is provided with a spacer below the middle portion thereof for insertion between the contact points.
5. The explosion-proof power adapter as set forth in claim 4, wherein said contact points of said first arcuate metal dome and said second arcuate metal dome are provided with gold plating.
6. An explosion-proof power adapter as set forth in claim 3, wherein said shape memory polymer sheet is provided with an operating lever at a central upper portion thereof.
7. An explosion-proof power adapter as set forth in claim 1, wherein said upper housing and said lower housing are secured by ultrasonic welding.
8. An explosion-proof power adapter as set forth in claim 1, wherein said power control module is provided with a temperature sensor.
9. The explosion-proof power adapter according to claim 1, wherein said shape memory polymer sheet is provided with at least one of conductive carbon black, metal powder and conductive polymer material.
10. An explosion-proof power adapter as set forth in claim 1, wherein said power control module is connected with an overtemperature indicator device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310196051.5A CN116131037B (en) | 2023-02-24 | 2023-02-24 | Explosion-proof type power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310196051.5A CN116131037B (en) | 2023-02-24 | 2023-02-24 | Explosion-proof type power adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116131037A CN116131037A (en) | 2023-05-16 |
| CN116131037B true CN116131037B (en) | 2023-10-20 |
Family
ID=86301090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310196051.5A Active CN116131037B (en) | 2023-02-24 | 2023-02-24 | Explosion-proof type power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116131037B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117895754B (en) * | 2024-03-14 | 2024-05-28 | 深圳市华锦电子有限公司 | Explosion-proof type power adapter |
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| CN111755919A (en) * | 2020-08-04 | 2020-10-09 | 苏州英忆新材料有限公司 | Wane formula mobile socket with dual anti-overload function |
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2023
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| JPH09204839A (en) * | 1996-01-26 | 1997-08-05 | Meidensha Corp | Switching device |
| CN2483875Y (en) * | 2001-04-24 | 2002-03-27 | 刘炳文 | Protector for electric appliance circuit |
| CN101728120A (en) * | 2008-10-21 | 2010-06-09 | 游聪谋 | Dual temperature sensing cutoff circuit protective device |
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| CN111755919A (en) * | 2020-08-04 | 2020-10-09 | 苏州英忆新材料有限公司 | Wane formula mobile socket with dual anti-overload function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116131037A (en) | 2023-05-16 |
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