CN217158856U - Circuit breaker and data line - Google Patents
Circuit breaker and data line Download PDFInfo
- Publication number
- CN217158856U CN217158856U CN202220316169.8U CN202220316169U CN217158856U CN 217158856 U CN217158856 U CN 217158856U CN 202220316169 U CN202220316169 U CN 202220316169U CN 217158856 U CN217158856 U CN 217158856U
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- conductive member
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- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The utility model discloses a circuit breaker, which comprises a shell, a first conductive piece and a second conductive piece, wherein the first conductive piece and the second conductive piece are arranged in the shell; the first conductive piece comprises a first side close to the second conductive piece and a second side far away from the second conductive piece, and a contact used for connecting the second conductive piece is arranged on the first side; the first conductive piece can be converted between a first shape and a second shape, and when the temperature value of the first conductive piece is smaller than a threshold value, the first conductive piece is in the first shape, so that the first conductive piece is electrically connected with the second conductive piece through the contact; when the temperature value of the first conductive member is greater than or equal to a threshold value, the first conductive member is in a second shape, so that the contact is separated from the second conductive member. The to-be-solved technical problem of the utility model lies in how to avoid the data line when high temperature and the potential safety hazard that produces.
Description
Technical Field
The utility model relates to a data line technical field especially relates to a circuit breaker and data line.
Background
Data lines are important connections for electronic devices to charge and transmit data. In the charging process, the interface of the data line can generate heat due to the passing of current, and if the service time of the data line is too long or foreign matters are stained in the interface of the data line, the situation of too high temperature can occur, so that the electronic equipment is damaged or even safety accidents are caused.
However, the conventional data line does not have a function of disconnection protection when the temperature is too high.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in how to avoid the data line potential safety hazard that produces when the high temperature.
In order to achieve the above object, the embodiment of the present invention provides a technical solution that:
a circuit breaker comprises a shell, a first conductive piece and a second conductive piece, wherein the first conductive piece and the second conductive piece are arranged in the shell; the first conductive piece comprises a first side close to the second conductive piece and a second side far away from the second conductive piece, and a contact used for connecting the second conductive piece is arranged on the first side;
the first conductive piece can be converted between a first shape and a second shape, and when the temperature value of the first conductive piece is smaller than a threshold value, the first conductive piece is in the first shape, so that the first conductive piece is electrically connected with the second conductive piece through the contact; when the temperature value of the first conductive member is greater than or equal to a threshold value, the first conductive member is in a second shape, so that the contact is separated from the second conductive member.
Preferably, first electrically conductive piece is including the first piece layer and the second piece layer of taking on that are connected, first piece layer is first material, the second piece layer of taking on is the second material, the second piece layer of taking on for first piece layer is kept away from second electrically conductive piece.
Preferably, a cavity is arranged in the first conductive piece, and the cavity is close to the second side of the first conductive piece;
or, the circuit breaker further comprises a supporting piece, a cavity is arranged in the first conductive piece, the cavity is close to the first side of the first conductive piece, and the supporting piece is located below the cavity and is in contact with the first side of the first conductive piece.
Preferably, the circuit breaker further comprises a support member, wherein the support member is a thermistor and is electrically connected to the first conductive member and the second conductive member, respectively.
Preferably, the contact is located at an end of the first conductive member adjacent to the second conductive member.
Preferably, a boss portion is arranged on the second conductive member, and the position of the boss portion corresponds to the position of the contact; when the first conductive member is in the first shape, the contact is in contact with the boss portion.
Preferably, the first conductive piece is provided with a supporting portion for raising the first conductive piece, and the supporting portion and the contact are respectively located at two opposite ends of the first conductive piece.
Preferably, the housing includes an upper cover and a lower cover connected to each other, an accommodating space is formed between the upper cover and the lower cover, and the first conductive member and the second conductive member are both located in the accommodating space.
Preferably, the circuit breaker further includes a metal cover plate between the upper cover and the first conductive member, a portion of the metal cover plate being in contact with the outside air.
Furthermore, the utility model provides a data line, data line is including the first joint, wire and the second joint that connect gradually, first joint and/or be provided with according to above with good grounds in the second joint the circuit breaker.
In the above technical solution of the present application, since the circuit breaker includes the housing, the first conductive member and the second conductive member disposed in the housing, the first conductive member can be converted between the first shape and the second shape according to a change in temperature. Under the normal working state, the first conductive piece is in a first shape and is electrically connected with the second conductive piece through the contact. When the circuit generates heat abnormally, the first conductive piece can be converted into a second shape, so that the contact is separated from the second conductive piece, the circuit is protected in a power-off mode, and damage to electronic equipment or safety accidents are avoided.
Drawings
Fig. 1 is a sectional view of a closed state of a circuit breaker according to a first embodiment of the present application;
fig. 2 is a sectional view of a circuit breaker in a breaking state according to a first embodiment of the present application;
fig. 3 is an exploded view of a circuit breaker according to a first embodiment of the present application;
fig. 4 is an exploded view of another perspective part of the circuit breaker according to the first embodiment of the present application;
fig. 5 is a perspective view of a first conductive member of the circuit breaker according to the first embodiment of the present application;
figure 6 is a cross-sectional view of a second embodiment of the present application showing a closed state of the circuit breaker;
fig. 7 is a sectional view of a circuit breaker in a broken state according to a second embodiment of the present application;
figure 8 is an exploded view of a circuit breaker according to a second embodiment of the present application;
fig. 9 is an exploded view of another perspective part of a circuit breaker according to a second embodiment of the present application;
fig. 10 is a cross-sectional view of a first conductive member of a circuit breaker according to a second embodiment of the present application;
fig. 11 is a perspective view of a data line in an embodiment of the present application.
The reference numbers illustrate:
10-circuit breaker, 100-shell, 110-upper cover, 120-lower cover, 130-containing space, 200-first conductive piece, 210-contact, 220-first strap layer, 230-second strap layer, 201-supporting part, 202-cavity, 300-second conductive piece, 301-boss part, 400-supporting part, 500-metal cover plate; 20-data line, 21-first connector, 22-wire, 23-second connector.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the following description, reference is made to the expression "some embodiments" which describe a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
It will also be understood that when an element is referred to as being "secured to" 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. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 5 in combination, the present application provides a circuit breaker 10, including a housing 100, a first conductive member 200 and a second conductive member 300 disposed in the housing 100; the first conductive member 200 and the second conductive member 300 are both made of conductive materials, one of the first conductive member 200 and the second conductive member 300 is used for inputting current, and the other one is used for outputting current; the first conductor 200 comprises a first side close to the second conductor 300 and a second side facing away from the second conductor 300, the first side being provided with a contact 210 for connecting the second conductor 300.
Wherein, the first conductive member 200 can be transformed between a first shape and a second shape according to a change in temperature, and when the temperature value of the first conductive member 200 is less than a threshold value, the first conductive member 200 is in the first shape, such that the first conductive member 200 is electrically connected to the second conductive member 300 through the contact 210; when the temperature value of the first conductive member 200 is greater than or equal to the threshold value, the first conductive member 200 is in the second shape, separating the contact 210 from the second conductive member 300. In practical applications, the threshold of the temperature may be set to 70 to 90 ℃, and may be specifically set according to the power of the charging device. For some electronic products with smaller power, such as mobile phones, MP4, and wireless headsets, the threshold value can be designed to be lower, and for some electronic products with larger power, such as notebook computers, the threshold value can be designed to be higher. In a normal operating state of the circuit breaker 10, a temperature value of the first conductive member 200 is less than a threshold value, and the first conductive member 200 is in a first shape. When the circuit generates heat abnormally, the temperature of the first conductive member 200 rises to be greater than or equal to the threshold value, and the first conductive member 200 is in the second shape to separate the contact 210 from the second conductive member 300.
In the above technical solution of the present application, since the circuit breaker 10 includes the housing 100, the first conductive member 200 and the second conductive member 300 disposed in the housing 100, the first conductive member 200 includes a first side close to the second conductive member 300 and a second side away from the second conductive member 300. In a normal operation state, the first conductive member 200 is in the first shape and is electrically connected to the second conductive member 300 through the contact 210. When the circuit generates heat abnormally, the first conductive member 200 is in the second shape to separate the contact 210 from the second conductive member 300, so that the circuit is protected by power failure, and damage to electronic equipment or safety accidents are avoided.
With continued reference to fig. 1 to fig. 5, as a first embodiment of the present application, the first conductive component 200 includes a first strap layer 220 and a second strap layer 230 connected to each other, and the second strap layer 230 is far away from the second conductive component 300 relative to the first strap layer 220, that is, the first strap layer 220 is located on a first side, and the second strap layer 230 is located on a second side. The first strap layer 220 is made of a first material, the second strap layer 230 is made of a second material, and the thermal expansion coefficient of the first strap layer 220 is larger than that of the second strap layer 230, so that the expansion amount of the first strap layer 220 is larger than that of the second strap layer 230 after the first conductive member 200 is heated. When the temperature reaches a threshold value, the first conductive member 200 takes on a second shape that is tilted in a direction away from the second conductive member 300, so that the contact 210 is separated from the second conductive member 300, and the protection circuit is disconnected. When the temperature value is restored to be less than the threshold value, the first conductive member 200 is restored to the first shape again and is electrically connected to the second conductive member 300 through the contact 210 to form a path. Further, the first strap layer 220 and the second strap layer 230 may be made of conductive metal and are connected into a whole by welding or pressing. In other embodiments, the first strap layer 220 and the second strap layer 230 may also be made of conductive materials such as alloys, composite metals, special function conductive materials, composite polymer conductive materials, and the like.
Referring to fig. 6 to 10, as a second embodiment of the present application, a cavity 202 may be disposed in the first conductive member 200, and the circuit breaker 10 further includes a supporting member 400, wherein the cavity 202 is disposed in the first conductive member 200, and the cavity 202 is close to a first side of the first conductive member 200, and specifically, a lower side wall thickness of the cavity 202 may be smaller than a half of an upper side wall thickness. The supporting member 400 is positioned under the cavity 202 and contacts the first side of the first conductive member 200. Since the cavity 202 contains gas, the gas expands a large amount after being heated, so that when the temperature reaches a threshold value, the gas in the cavity 202 expands to make the first conductive member 200 assume the second shape of bulging bottom, and the supporting member 400 is located below the cavity 202 to support the first conductive member 200, so that the contact 210 is separated from the second conductive member 300, and the circuit is protected from power failure. When the temperature value is restored to be less than the threshold value, the first conductive member 200 is restored to the first shape again and is electrically connected to the second conductive member 300 through the contact 210 to form a path. Further, the supporting member 400 may be a thermistor, and is electrically connected to the first conductive member 200 and the second conductive member 300, respectively. The thermistor, preferably a PTC resistor, is disposed between the first conductive member 200 and the second conductive member 300. When the current in the circuit breaker 10 is too large, the thermistor generates heat and conducts the heat to the first conductive member 200, so that the first conductive member 200 tilts towards the direction departing from the second conductive member 300, and power-off protection is formed. The charging equipment can be effectively prevented from being damaged due to overlarge current by arranging the thermistor.
In other embodiments, the cavity 202 in the first conductive member 200 may be disposed near the second side, and specifically, the wall thickness of the lower side of the cavity 202 may be 1.2-1.5 times the wall thickness of the upper side, and the supporting member 400 is not required to be disposed in the circuit breaker 10. Because the cavity 202 contains gas, the gas expands a large amount after being heated, and when the temperature reaches a threshold value, the gas in the cavity 202 expands to generate an upward pulling force on the second side of the first conductive member 200, so that the first conductive member 200 takes a second shape that is tilted away from the second conductive member 300, the contact 210 is separated from the second conductive member 300, and the circuit is protected from power failure. When the temperature value is restored to be less than the threshold value, the first conductive member 200 is restored to the first shape again and is electrically connected to the second conductive member 300 through the contact 210 to form a path. Further, the cavity 202 may be located at an intermediate position of the first conductive member 200. When heated, both ends of the first conductive member 200 are tilted away from the second conductive member 300, so that the contact 210 is separated from the second conductive member 300. In the embodiment shown in the drawings, one end of the first conductive member 200 is adjacent to the second conductive member 300, and the other end is spaced apart from the second conductive member 300, and the contact 210 is located at one end of the first conductive member 200 adjacent to the second conductive member 300 so as to be electrically connected to the second conductive member 300.
Preferably, the second conductive member 300 is provided with a boss portion 301, and the position of the boss portion 301 corresponds to the position of the contact 210; when the first conductive member 200 is in the first shape, the contact 210 contacts the boss portion 301 so that the first conductive member 200 is electrically connected to the second conductive member 300. The first conductive member 200 is provided with a supporting portion 201 for raising the first conductive member 200, and the supporting portion 201 and the contact 210 are respectively located at two opposite ends of the first conductive member 200. The supporting portion 201 raises the first conductive member 200 so that the contact 210 can be just fitted on the boss portion 301. In the embodiment shown in the drawings, the contact 210 is located at one end of the first conductive member 200 in the length direction, the contact 210 may have a conductive structure such as a rectangular shape, a cylindrical shape, a spherical shape, etc., and the first conductive member 200 is lapped on the second conductive member 300 through the contact 210 to be electrically connected to the second conductive member 300. The housing 100 includes an upper cover 110 and a lower cover 120 connected to each other, a receiving space 130 is formed between the upper cover 110 and the lower cover 120, and the first conductive member 200 and the second conductive member 300 are both located in the receiving space 130. The upper cover 110 and the lower cover 120 are made of an insulating material, such as insulating resin, glass, plastic, etc., and the first conductive member 200 and the second conductive member 300 are protected by the upper cover 110 and the lower cover 120 to prevent leakage and dust.
Further, the circuit breaker 10 further includes a metal cover plate 500, the metal cover plate 500 is located between the upper cover 110 and the first conductive member 200 and spaced apart from the first conductive member 200, and one end of the metal cover plate 500 is in contact with the outside air. Metal cover plate 500 is used for strengthening overall structure and plays the radiating effect of heat conduction, and metal cover plate 500's one end can contact with the outside air through stretching out to the outer mode such as casing 100 to derive the heat to the external world in circuit breaker 10, be favorable to circuit breaker 10 early point after opening circuit to resume the access state.
In addition, referring to fig. 11, the present invention further provides a data line 20, wherein the data line 20 includes a first connector 21, a conducting wire 22 and a second connector 23, which are connected in sequence, and the circuit breaker 10 is disposed in the first connector 21 and/or the second connector 23. The first connector 21 and the second connector 23 may be USB interfaces, COM interfaces, Type-C interfaces, or Micro-USB interfaces. The circuit breaker 10 may be disposed in the first connector 21 and/or the second connector 23 by means of soldering. Since the internal resistance of the circuit breaker 10 itself is small, the internal resistance of the data line 20 is substantially unchanged after reflow soldering, and therefore, the influence of the circuit breaker 10 does not need to be considered when designing the data line, and additional verification is not needed. One of the first connector 21 and the second connector 23 is used for connecting a power supply, and the other is used for connecting a charging device. Due to the fact that the circuit breaker 10 is arranged in the first connector 21 and/or the second connector 23, when the temperature of the connectors is too high, the circuit breaker 10 can cut off the power to protect the data line 20 and the charging equipment, and safety accidents are avoided. Specifically, when the temperature of the circuit breaker 10 is less than the threshold value, the circuit breaker is in a conducting state, and the data line 20 supplies power to the electronic device such as a mobile phone. Because the resistance exists at the joint of the data line 20, when current (especially large current) passes through, the power generated at the joint is large to cause heating, and along with the temperature rise, when the temperature of the circuit breaker 10 is equal to or greater than a threshold value, the circuit breaker 10 is automatically switched off, so that the protection effect is achieved, the damage to the data line 20 and charging equipment is avoided, and the occurrence of safety accidents is reduced.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The circuit breaker is characterized by comprising a shell, a first conductive piece and a second conductive piece, wherein the first conductive piece and the second conductive piece are arranged in the shell; the first conductive piece comprises a first side close to the second conductive piece and a second side far away from the second conductive piece, and a contact used for connecting the second conductive piece is arranged on the first side;
the first conductive piece can be converted between a first shape and a second shape, and when the temperature value of the first conductive piece is smaller than a threshold value, the first conductive piece is in the first shape, so that the first conductive piece is electrically connected with the second conductive piece through the contact; when the temperature value of the first conductive member is greater than or equal to a threshold value, the first conductive member is in a second shape, so that the contact is separated from the second conductive member.
2. The circuit breaker of claim 1, wherein the first conductive member comprises a first strap layer and a second strap layer connected to each other, the first strap layer is made of a first material, the second strap layer is made of a second material, and the second strap layer is far away from the second conductive member relative to the first strap layer.
3. The circuit breaker of claim 1, wherein a cavity is disposed within the first electrically-conductive member proximate the second side of the first electrically-conductive member;
or, the circuit breaker further comprises a supporting piece, a cavity is arranged in the first conductive piece, the cavity is close to the first side of the first conductive piece, and the supporting piece is located below the cavity and is in contact with the first side of the first conductive piece.
4. The circuit breaker of claim 3, wherein said support member is a thermistor and is electrically connected to said first and second electrically conductive members, respectively.
5. The circuit breaker of claim 3, wherein said contact is located at an end of said first electrically conductive member proximate to said second electrically conductive member.
6. The circuit breaker according to any one of claims 1 to 5, wherein a boss portion is provided on the second conductive member, the position of the boss portion corresponding to the position of the contact; when the first conductive member is in the first shape, the contact is in contact with the boss portion.
7. The circuit breaker of claim 6, wherein the first conductive member is provided with a supporting portion for raising the first conductive member, and the supporting portion and the contact are respectively located at two opposite ends of the first conductive member.
8. The circuit breaker according to any one of claims 1 to 5, wherein the housing comprises an upper cover and a lower cover connected with each other, a receiving space is formed between the upper cover and the lower cover, and the first conductive member and the second conductive member are both located in the receiving space.
9. The circuit breaker of claim 8, further comprising a metal cover plate positioned between the upper cover and the first conductive member, a portion of the metal cover plate being in contact with outside air.
10. A data line, characterized in that it comprises a first connector, a conductor and a second connector connected in sequence, said first connector and/or said second connector being provided with a circuit breaker according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220316169.8U CN217158856U (en) | 2022-02-16 | 2022-02-16 | Circuit breaker and data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220316169.8U CN217158856U (en) | 2022-02-16 | 2022-02-16 | Circuit breaker and data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158856U true CN217158856U (en) | 2022-08-09 |
Family
ID=82690768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220316169.8U Active CN217158856U (en) | 2022-02-16 | 2022-02-16 | Circuit breaker and data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158856U (en) |
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2022
- 2022-02-16 CN CN202220316169.8U patent/CN217158856U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518131, Block C, 1601, Zhantao Technology Building, Intersection of Minzhi Avenue and Gongye East Road, Xinniu Community, Minzhi Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Jianjun Technology Co.,Ltd. Address before: 1708, block C, Zhantao technology building, the intersection of Minzhi Avenue and Gongye East Road, Xinniu community, Minzhi street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN RANVOO TECHNOLOGY CO.,LTD. |