CN203774562U - USB connector with thermal protection function - Google Patents
USB connector with thermal protection function Download PDFInfo
- Publication number
- CN203774562U CN203774562U CN201420116873.4U CN201420116873U CN203774562U CN 203774562 U CN203774562 U CN 203774562U CN 201420116873 U CN201420116873 U CN 201420116873U CN 203774562 U CN203774562 U CN 203774562U
- Authority
- CN
- China
- Prior art keywords
- usb plug
- usb
- negative pole
- output negative
- thermal protection
- 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.)
- Expired - Fee Related
Links
- 238000001746 injection moulding Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model discloses a USB connector which has a thermal protection function when the local temperature of a USB plug in use is too high. A thermal protection part is arranged between an output cathode inner end of the USB plug and an output cathode wire port of a USB connection line. One end of the thermal protection part is connected with the output cathode inner end and the other end is connected with the output cathode wire port. An injection molding or an ultrasonic process is adopted to carry out integrated injection molding on the thermal protection part and the output cathode inner end and the output cathode wire port, which are connected with the thermal protection part. During work of the USB plug, when the local temperature of the USB plug is overly high because of the contact resistance of the USB plug or when a mobile device interface connected with the USB plug has an overly high temperature, the thermal protection part switches off a circuit loop of the USB plug so that the USB plug is protected from deformation, melting or damage of a plastic part of the USB plug, resulted from the overly high temperature.
Description
Technical field
The utility model relates to a kind of USB connector, particularly a kind of USB connector that prevents thermal deformation.
Background technology
Along with the output current of charging of mobile devices device (adapter) is increasing, growth at the USB interface of charger (adapter) and the contact resistance of mobile device interface with service time increases, under the operating state at large electric current, the contact resistance increasing can cause local temperature to rise, and the plastic casing of USB plug or mobile device interface can be out of shape, melt to such an extent as to USB plug or mobile device interface are damaged and cannot be used when serious.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of USB plug local temperature in using when overheated, thereby can disconnect the USB plug that its work reduces this local temperature.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
The USB connector with heat protection function of the present utility model; comprise USB plug and USB connecting line; between the output negative pole end of and USB connecting line inner at the output negative pole of USB plug, be provided with hot guard block; one end of hot guard block and described output negative pole the inner join; its other end and described output negative pole end join, adopt injection moulding or ultrasonic technique by described hot guard block and connected output negative pole is inner be injection-moulded in output negative pole end together with.
USB plug metal shell and described output negative pole the inner are joined, and mode and USB plug metal shell that hot guard block is fully contacted with USB plug metal shell with its housing join.
Described hot guard block is bimetal leaf or disposable thermal melting fuse.
Compared with prior art; the utility model adopts the structure between hot guard block access USB plug output negative pole is inner and USB connecting line output negative pole end; while making to use USB plug work of the present utility model; when USB plug local temperature is when its contact resistance is too high or connected mobile device interface occurs abnormal high temperature; hot guard block of the present utility model disconnects the circuit loop of USB plug; thereby, protected USB plug can not cause its parts of plastics distortion, fusing or damage because of excess Temperature.
Accompanying drawing explanation
Fig. 1 is profile schematic diagram of the present utility model.
Fig. 2 be in Fig. 1 of embodiment 1 A-A to cutaway view Amplified image.
Fig. 3 be in Fig. 1 of embodiment 2 A-A to cutaway view Amplified image.
Reference numeral is as follows:
The termination 5 of the inner 2 of USB plug 1, output negative pole, metal shell 3, USB connecting line 4, output negative pole line, hot guard block 6, housing 7, plastic body 8.
Embodiment
As shown in Figure 1, the USB connector with heat protection function of the present utility model, is that hot guard block 6 is set between USB plug 1 and USB connecting line 4, and this hot guard block 6 can be bimetal leaf, can be also disposable hot melt fuze.When excessive temperature that causing because electric current is excessive appears in USB connector plug used, hot guard block 6 disconnects USB circuit loops, thereby, effectively protect USB plug 1 not to be burned.
Hot guard block 6 of the present utility model is as follows with the syndeton of USB plug 1:
Embodiment 1
As shown in Figure 2; the inner 2 of one end of hot guard block 6 and USB plug 1 output negative pole joins; the termination 5 of the other end of hot guard block 6 and USB connecting line 4 output negative pole lines joins; USB plug 1 output cathode, D+ are connected respectively to pin with D-end and are connected with the inside of USB plug 1, employing injection moulding or ultrasonic technique are injection-moulded in connected output negative pole inner 2 hot guard block 6 with output negative pole end 5 together with, form plastic body 8.
Embodiment 2
As shown in Figure 3, USB plug 1 metal shell 3 is joined with the inner 2 of USB plug 1 output negative pole, again hot guard block 6 is fully contacted with USB plug 1 metal shell 3 with its housing 7, like this, can make hot guard block 6 detect to the temperature of USB plug 1 with the fastest speed, one end of hot guard block 6 is still joined with the inner 2 of USB plug 1 output negative pole simultaneously, the termination 5 of the other end of hot guard block 6 and USB connecting line 4 output negative pole lines joins, by USB plug 1 output cathode, D+, being connected respectively pin with the inside of USB plug 1 with D-end is connected, employing injection moulding or ultrasonic technique form plastic body together with hot guard block 6 is injection-moulded in output negative pole end 5 with connected output negative pole inner 2.
The USB plug 1 with heat protection function, during design, the metal of the metal of hot guard block 6 part and USB plug 1 is partly coupled together and to keep in touch area enough large, when using USB connector charging, when the temperature of USB plug 1 is during lower than the operating temperature of hot guard block 6, charging action is unaffected, when charger circuit overcurrent protection lost efficacy or mobile device internal interface circuit abnormality and make output current become large, or the contact resistance of interface junction becomes the impact of large etc. some reasons, now the temperature of USB plug 1 or mobile device interface will raise, when temperature reaches the design temperature of hot guard block 6, hot guard block 6 moves and disconnection out-put supply.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; make without departing from the concept of the premise utility some alternative or obvious modification that are equal to; and performance or purposes identical, all should be considered as belonging to the utility model by the definite scope of patent protection of submitted to claims.
Claims (3)
1. a USB connector with heat protection function, comprise USB plug (1) and USB connecting line (4), it is characterized in that: between the output negative pole of USB plug (1) inner (2) and the output negative pole end (5) of USB connecting line (4), be provided with hot guard block (6), one end of hot guard block (6) and described output negative pole inner (2) join, its other end and described output negative pole end (5) join, adopt injection moulding or ultrasonic technique that described hot guard block (6) and connected output negative pole the inner (2) and output negative pole end (5) are injection-moulded in together.
2. the USB connector with heat protection function according to claim 1; it is characterized in that: USB plug (1) metal shell (3) and described output negative pole inner (2) are joined, and mode and USB plug (1) metal shell (3) that hot guard block (6) is fully contacted with USB plug (1) metal shell (3) with its housing (7) join.
3. the USB connector with heat protection function according to claim 1 and 2, is characterized in that: described hot guard block (6) is bimetal leaf or disposable thermal melting fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116873.4U CN203774562U (en) | 2014-03-14 | 2014-03-14 | USB connector with thermal protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116873.4U CN203774562U (en) | 2014-03-14 | 2014-03-14 | USB connector with thermal protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774562U true CN203774562U (en) | 2014-08-13 |
Family
ID=51291715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420116873.4U Expired - Fee Related CN203774562U (en) | 2014-03-14 | 2014-03-14 | USB connector with thermal protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877049A (en) * | 2017-03-09 | 2017-06-20 | 维沃移动通信有限公司 | A kind of preparation method of USB interface, USB interface and terminal |
-
2014
- 2014-03-14 CN CN201420116873.4U patent/CN203774562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877049A (en) * | 2017-03-09 | 2017-06-20 | 维沃移动通信有限公司 | A kind of preparation method of USB interface, USB interface and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 |