CN202978208U - Circuit board equipped with overcurrent protection device - Google Patents
Circuit board equipped with overcurrent protection device Download PDFInfo
- Publication number
- CN202978208U CN202978208U CN 201220666074 CN201220666074U CN202978208U CN 202978208 U CN202978208 U CN 202978208U CN 201220666074 CN201220666074 CN 201220666074 CN 201220666074 U CN201220666074 U CN 201220666074U CN 202978208 U CN202978208 U CN 202978208U
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- CN
- China
- Prior art keywords
- circuit board
- auxiliary
- main circuit
- protective device
- overcurrent protective
- 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
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Abstract
The utility model discloses a circuit board equipped with an overcurrent protection device. The circuit board comprises a main circuit board, an auxiliary circuit board and an overcurrent protection device, wherein the main circuit board is provided with an electronic component which is used for normal operation; the auxiliary circuit board is provided with first auxiliary contacts which is used for normal operation independent of the main circuit board; the first auxiliary contacts are electrically connected with the electronic component; and the auxiliary circuit board is detachably fixed and connected with the main circuit board. According to the circuit board equipped with the overcurrent protection device, the first auxiliary contacts which are used for recording and detecting information are disposed on the auxiliary circuit board, and when the production is completed, the auxiliary circuit board is removed, and usable dimension of the main circuit board is increased, and at the same time dimension of the first auxiliary contacts are relatively increased too. As a result, the circuit board equipped with the overcurrent protection device overcomes a defect that a circuit board in the prior art has difficulty in aligning with an external device due to small dimension of each contact on the circuit board, and helps to improve production efficiency.
Description
Technical field
The utility model relates to the board design manufacturing technology, relates in particular to a kind of circuit board with overcurrent protective device.
Background technology
Circuit board is part important in electronic equipment, and the circuit board of storing use as information has the function of computing and storage.Usually be provided with a plurality of electronic devices and components and a plurality of contact on circuit board, wherein comprise at least a memory element in a plurality of electronic devices and components, generally do not contain the information of user's needs when making this memory element, but by the terminal manufacturer, the information burning of using is entered, the connecting terminal that uses when above-mentioned a plurality of contact comprises for the information burning also comprises terminal use's required communication contact in use.
For printer, less for printer Design wishes that usually the size of foregoing circuit plate is the smaller the better.General design is in a side of circuit board, electronic devices and components to be installed, and the another side arranges the contact, also can electronic devices and components and contact be set simultaneously in the two sides of circuit board.
The utility model content
The utility model provides a kind of circuit board with overcurrent protective device, to solve the defective that is difficult to aim at the contact in prior art, enhances productivity.
Realize that the technical solution of the utility model is:
A kind of circuit board with overcurrent protective device, comprise main circuit board, auxiliary circuit board and overcurrent protective device, described overcurrent protective device comprises current transformer, sampled rectifier circuit, and signal processing circuit, described sampled rectifier circuit comprises at least four shunt of group rectification circuits and at least three current transformers; Two rectifier diodes of every group of rectification circuit minute route are in series; One of them output of the secondary side of three current transformers accesses respectively between one group of rectification circuit, two rectifier diodes along separate routes; Another output is respectively through after a sample resistance, and is in parallel with an end of a ground connection sample resistance; The other end of ground connection sample resistance is connected between a remaining rectification circuit two rectifier diodes along separate routes, and described signal processing circuit is accessed respectively at the two ends of while three sample resistances and ground connection sample resistance; Be provided with the electronic devices and components for normal operation on described main circuit board; Be provided with on described auxiliary circuit board be used to the first auxiliary contact that are independent of main circuit board normal operation, described the first auxiliary contact are electrically connected with described electronic devices and components, being fixed together of described auxiliary circuit board and described main circuit board energy detachable.
Preferably, described the first auxiliary contact and described electronic devices and components are connected with connection line on auxiliary circuit board by being arranged on described main circuit board.
Preferably, also be provided with the second auxiliary contact on described main circuit board, described the second auxiliary contact are electrically connected with described electronic devices and components and described the first auxiliary contact respectively.
Preferably, the quantity of described the second auxiliary contact is a plurality of, is separately positioned on not ipsilateral of the same side of described main circuit board or two.
Preferably, also be provided with on described main circuit board for the communication contact that communicates with terminal, described communication contact and described electronic devices and components are positioned at the same side of described main circuit board or lay respectively at two sides of described main circuit board.
Preferably, described auxiliary circuit board and described main circuit board are formed in one, and the zone between described auxiliary circuit board and described main circuit board is formed with hollow plate, offer groove on described hollow plate.
Preferably, described groove is V-shaped groove.
What the utility model provided is arranged on auxiliary circuit board by the first auxiliary contact that burning and detection information are used with the circuit board of overcurrent protective device; after the manufacturing is completed; remove auxiliary circuit board; make available size increase on main circuit board; simultaneously also can relatively increase the size of the first auxiliary contact; solved in prior art on circuit board each contact size little, the defective with the external equipment alignment difficulties has improved production efficiency.
Description of drawings
Fig. 1 is structure idea figure of the present utility model;
Fig. 2 is structure side intention of the present utility model.
Embodiment
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, describe most preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing, the utility model is limited.
As shown in Figure 1, a kind of circuit board with overcurrent protective device, comprise main circuit board 1, auxiliary circuit board 2 and overcurrent protective device 8, described overcurrent protective device 8 comprises current transformer, sampled rectifier circuit, and signal processing circuit, described sampled rectifier circuit comprises at least four shunt of group rectification circuits and at least three current transformers; Two rectifier diodes of every group of rectification circuit minute route are in series; One of them output of the secondary side of three current transformers accesses respectively between one group of rectification circuit, two rectifier diodes along separate routes; Another output is respectively through after a sample resistance, and is in parallel with an end of a ground connection sample resistance; The other end of ground connection sample resistance is connected between a remaining rectification circuit two rectifier diodes along separate routes, and described signal processing circuit is accessed respectively at the two ends of while three sample resistances and ground connection sample resistance; Be provided with the electronic devices and components 4 for normal operation on described main circuit board 1; Be provided with on described auxiliary circuit board 2 be used to the first auxiliary contact 5 that are independent of the main circuit board normal operation, described the first auxiliary contact 5 are electrically connected with described electronic devices and components 4, and described auxiliary circuit board 2 is fixed together with described main circuit board 1 energy detachable.
Described the first auxiliary contact 5 and described electronic devices and components 4 are connected with connection line on auxiliary circuit board 2 by being arranged on described main circuit board 1.
Also be provided with the second auxiliary contact 6 on described main circuit board 1, described the second auxiliary contact 6 are electrically connected with described electronic devices and components 4 and described the first auxiliary contact 5 respectively.
The quantity of described the second auxiliary contact 6 is a plurality of, is separately positioned on not ipsilateral of the same side of described main circuit board 1 or two.
Also be provided with on described main circuit board 1 for the communication contact 7 that communicates with terminal, described communication contact 7 is positioned at the same side of described main circuit board 1 with described electronic devices and components 4 or lays respectively at two sides of described main circuit board 1.
Described auxiliary circuit board 2 is formed in one with described main circuit board 1, and the zone between described auxiliary circuit board 2 and described main circuit board 1 is formed with hollow plate, offers groove 3 on described hollow plate.
Described groove 3 is V-shaped groove.
The above execution mode only is used for illustrating the utility model, but is not limited to this.Do not departing under the condition of the utility model design, affiliated technical field personnel can make suitable change and adjustment, and within these change and adjustments also should include claim protection range of the present utility model in.
Claims (7)
1. circuit board with overcurrent protective device, it is characterized in that: comprise main circuit board, auxiliary circuit board and overcurrent protective device, described overcurrent protective device comprises current transformer, sampled rectifier circuit, and signal processing circuit, described sampled rectifier circuit comprises at least four shunt of group rectification circuits and at least three current transformers; Two rectifier diodes of every group of rectification circuit minute route are in series; One of them output of the secondary side of three current transformers accesses respectively between one group of rectification circuit, two rectifier diodes along separate routes; Another output is respectively through after a sample resistance, and is in parallel with an end of a ground connection sample resistance; The other end of ground connection sample resistance is connected between a remaining rectification circuit two rectifier diodes along separate routes, and described signal processing circuit is accessed respectively at the two ends of while three sample resistances and ground connection sample resistance; Be provided with the electronic devices and components for normal operation on described main circuit board; Be provided with on described auxiliary circuit board be used to the first auxiliary contact that are independent of main circuit board normal operation, described the first auxiliary contact are electrically connected with described electronic devices and components, being fixed together of described auxiliary circuit board and described main circuit board energy detachable.
2. the circuit board with overcurrent protective device according to claim 1 is characterized in that: described the first auxiliary contact and described electronic devices and components are connected with connection line on auxiliary circuit board by being arranged on described main circuit board.
3. the circuit board with overcurrent protective device according to claim 1 is characterized in that: also be provided with the second auxiliary contact on described main circuit board, described the second auxiliary contact are electrically connected with described electronic devices and components and described the first auxiliary contact respectively.
4. the circuit board with overcurrent protective device according to claim 3, it is characterized in that: the quantity of described the second auxiliary contact is a plurality of, is separately positioned on not ipsilateral of the same side of described main circuit board or two.
5. the circuit board with overcurrent protective device according to claim 1; it is characterized in that: also be provided with on described main circuit board for the communication contact that communicates with terminal, described communication contact and described electronic devices and components are positioned at the same side of described main circuit board or lay respectively at two sides of described main circuit board.
6. the circuit board with overcurrent protective device according to claim 1; it is characterized in that: described auxiliary circuit board and described main circuit board are formed in one; and the zone between described auxiliary circuit board and described main circuit board is formed with hollow plate, offers groove on described hollow plate.
7. the circuit board with overcurrent protective device according to claim 6, it is characterized in that: described groove is V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666074 CN202978208U (en) | 2012-12-06 | 2012-12-06 | Circuit board equipped with overcurrent protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220666074 CN202978208U (en) | 2012-12-06 | 2012-12-06 | Circuit board equipped with overcurrent protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978208U true CN202978208U (en) | 2013-06-05 |
Family
ID=48519235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220666074 Expired - Fee Related CN202978208U (en) | 2012-12-06 | 2012-12-06 | Circuit board equipped with overcurrent protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978208U (en) |
-
2012
- 2012-12-06 CN CN 201220666074 patent/CN202978208U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN TONGWEIXIN CIRCUIT TECHNOLOGY CO., LTD. Assignor: Lu Weibin Contract record no.: 2013440020279 Denomination of utility model: Circuit board equipped with overcurrent protection device Granted publication date: 20130605 License type: Exclusive License Record date: 20130925 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20201206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |