CN207766654U - circuit board and wireless device - Google Patents
circuit board and wireless device Download PDFInfo
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- CN207766654U CN207766654U CN201721852290.8U CN201721852290U CN207766654U CN 207766654 U CN207766654 U CN 207766654U CN 201721852290 U CN201721852290 U CN 201721852290U CN 207766654 U CN207766654 U CN 207766654U
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- circuit
- test zone
- circuit board
- access area
- test
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Abstract
The utility model discloses a kind of circuit board and wireless device, the circuit board includes pcb board and testing weld pad, the testing weld pad includes test zone and ground area, the ground area includes the first access area and the second access area, passing channel is formed between first access area and the second access area, the test zone is set in the passing channel.This programme allows the circuit in circuit by the passing channel and passes through the testing weld pad, to enable the testing weld pad that the same face in pcb board is arranged with the circuit on pcb board, improves the flexibility of the testing weld pad setting；Simultaneously because the presence of passing channel, the via is arranged independently of the test zone, it avoids and opens via on the test zone, it thus can be effectively prevented from the phenomenon that scolding tin infiltrates into the test zone by the via, to improve the accuracy to the circuit test.
Description
Technical field
The utility model is related to circuit board and wireless device field, more particularly to a kind of circuit board and wireless device.
Background technology
This kind of product such as wireless device, such as carry-on WIFI, bluetooth use to obtain more and more, user couple in daily life
The requirement of its electric property is also higher and higher.During producing the similar products such as carry-on WIFI, in order to ensure that product is electrical
Performance it is reliable and stable, in production test procedure, need to carry out the output power and receiving sensitivity of carry-on WIFI equipment
Calibration.In the prior art, it is transferred to the power test point of the circuit of wireless device by testing weld pad, for power test
Equipment is detected.
Pad design structure common at present is usually as shown in Figure 1 comprising ground pad 1 and calibration point 2, calibration point 2
For the power test point for circuit to be tested of transferring, so that power test equipment is electrically connected power test point.Due to ground pad 1
It is located on calibration point 2 on circuit boards, therefore this power test point for resulting in circuit to be tested can only be by setting on pad
The calibration point 2 can be connected to by setting via.So so that pad can only be divided into circuit board with the circuit of wireless device
Positive and negative thus causes significant limitation to the design of wireless device.
Utility model content
The main purpose of the utility model is a kind of circuit board of proposition and wireless device, it is intended to improve and test weldering on circuit board
The setting flexibility of disk.
To achieve the above object, the utility model proposes a kind of circuit board, including pcb board and testing weld pad, feature
It is, the testing weld pad includes being arranged on the pcb board：
Test zone；
Ground area, including surface are covered with the first access area and the second access area of ground metal layer, and described first connects
Passing channel is formed between area and the second access area, the test zone is set in the passing channel, and the test
Gap is all had between region and first access area and the second access area.
Preferably, the passing channel is in a linear extension.
Preferably, first access area and the edge of the second access area towards the passing channel are mutually parallel.
Preferably, first access area is identical with the shape and area of the second access area, and is divided into the test
The both sides in region.
Preferably, the test zone is rectangular；And/or the round test that there is windowing to be formed on the test zone
Disk.
Preferably, the testing weld pad further includes via, and the via is located in the passing channel, and with the test
It is interregional every setting；
The via is electrically connected with the test zone.
Preferably, the circuit board further includes the circuit being arranged on the pcb board, antenna pedestal；
There is the circuit power test point, the power test point to be electrically connected with the test zone of the testing weld pad,
And the test zone of the testing weld pad is connected for power test equipment.
Preferably, the circuit board further includes specified impedance value circuit, and the specified impedance value circuit leads to along the line of crossing
Road is arranged；
And the specified impedance value circuit passes through the test zone.
Preferably, the specified impedance value circuit is parallel with the two sides of the passing channel.
The utility model also proposes a kind of wireless device, which is characterized in that including the circuit board.
Technical solutions of the utility model pass through the structure for improving the testing weld pad ground area and the ground area
With the position relationship of the test zone, to form passing channel so that the circuit in circuit can pass through the passing channel
And the testing weld pad is passed through, to enable the testing weld pad that the same face in pcb board is arranged with the circuit on pcb board,
Improve the flexibility of the testing weld pad setting；Simultaneously because the presence of passing channel so that the via can be independently of
The test zone setting, avoids and opens via on the test zone, it is thus possible to be effectively prevented from described in scolding tin process
Via infiltrates into the phenomenon that test zone, to ensure that leading between the power test equipment and the test zone
It is electrically good, improve the accuracy to the circuit test.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the pad for test in the prior art；
Fig. 2 is the first embodiment structural schematic diagram of the utility model testing weld pad；
Fig. 3 is the second embodiment structural schematic diagram of the utility model testing weld pad；
Fig. 4 is the first embodiment structural schematic diagram of the utility model circuit board；
Fig. 5 is the second embodiment structural schematic diagram of the utility model circuit board.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Circuit board | 211 | Test panel |
| 10 | Pcb board | 25 | Via |
| 20 | Testing weld pad | 30 | Antenna pedestal |
| 21 | Test zone | 40 | Specified impedance value circuit |
| 22 | First access area | 1 | Ground pad |
| 23 | Second access area | 2 | Calibration point |
| 24 | Passing channel |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is opposite between each component under a certain particular pose (as shown in the picture)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, will be understood that this technical side when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of circuit boards 100, do not limit the function of the circuit board 100 herein.Please refer to Fig. 2 extremely
Fig. 5, the circuit board 100 include pcb board 10 and testing weld pad 20, also have circuit on certain circuit board 100.This programme
In, the testing weld pad 20 has been the testing weld pad 20 of test function, which is used to connect the power test of circuit
Point, so that external power test equipment is detected the power test point, and then test out the circuit input power and
Output power, to test the electrical characteristic of the circuit and be calibrated to the input power and output power of circuit.
Specifically, Fig. 2 to Fig. 3 is please referred to, the testing weld pad 20 includes the test zone being arranged on the pcb board 10
21 and ground area.The test zone 21 is used to be electrically connected for the power test point, and the ground area includes that surface is covered
It is stamped the first access area 22 and the second access area 23 of ground metal layer；First access area 22, the second access area 23 and institute
Stating has gap between test zone 21；And it is formed with passing channel between 22 and second access area 23 of the first access area
24, and the test zone 21 is in the passing channel 24.Antenna pedestal 30, the day are typically provided on the circuit board 100
Line seat 30 is connected for antenna, and the ground area and the test zone 21 form complete circuit by the antenna.One
In embodiment, the power test point of the circuit is electrically connected by pin with the test zone 21, on the test zone 21
Equipped with the through-hole passed through for the pin；In another embodiment, in the 10 wires design stage of pcb board, make the work(of the circuit
Rate test point is electrically connected by lead with the test zone 21, and in test phase, testing staff is directly examined using external power
Measurement equipment contacts (electrical connection) with the test zone 21, you can carries out power detection to the circuit and to power to realize
It is calibrated.
The processing method for not limiting the testing weld pad 20 in this programme, it is preferable that the ground area is usually by covering
Copper forms the first access area 22 and the second access area 23, first access area 22, the second access area 23 and the test section
Gap between domain 21 is for being isolated the ground area and the test zone 21；It is covered with tin on the test zone 21
Layer, in order to which the power test point is electrically connected with the test zone 21.
In the present solution, the passing channel 24 was used for line, therefore when the testing weld pad 20 is placed on pcb board with the circuit
When the same side on 10, the circuit in circuit can be by the line of crossing by passing through the testing weld pad 20, therefore, this programme
20 structure of testing weld pad enable the testing weld pad 20 that the same face in pcb board 10 is set with the circuit on pcb board 10.
On the other hand, in order to ensure that the testing weld pad 20 will not be aoxidized quickly, print solder paste can be carried out on testing weld pad 20, so
SMT processing procedures are crossed afterwards；In prior art designs, draw by the power test due to having via on test zone 21 after upper tin
When foot passes through the via to carry out scolding tin, it may appear that scolding tin penetrates into the reverse side of PCB, leakage tin phenomenon occurs, so as to cause test
Region 21 is uneven, causes the problem of poor contact occur during being tested using power test equipment；This practicality
The test zone 21 and the via can be provided separately by new technique scheme due to the setting of passing channel 24,
It can be realized and be electrically connected by circuit between the two, this setup can be effectively prevented from the phenomenon that scolding tin permeates, and ensure
Electric conductivity between the power test equipment and the test zone 21 is good.
Technical solutions of the utility model pass through the structure for improving 20 ground area of testing weld pad and the access area
The position relationship in domain and the test zone 21, to form passing channel 24 so that the circuit in circuit can pass through the mistake
Line passage 24 and pass through the testing weld pad 20, to enable the testing weld pad 20 on pcb board 10 circuit setting exist
The same face of pcb board 10 improves the flexibility of the setting of the testing weld pad 20；Simultaneously because the presence of passing channel 24, makes
Obtaining the via can be arranged independently of the test zone 21, avoid and open via on the test zone 21, thus energy
It is enough effectively prevented from the phenomenon that scolding tin infiltrates into the test zone 21 by the via, to ensure that the power test
Electric conductivity between equipment and the test zone 21 is good, improves the accuracy to the circuit test.
In the present solution, the shape of the passing channel 24 can there are many, such as can be in arcuation, polyline shaped etc..In order to
Convenient for designer's routing of layout, and reduce the parasitic inductance between circuit, is preferably provided with the passing channel 24 in always
Line extends.Preferably due to the first access area 22 and the second access area described in first access area, 22 and second access area 23
23 shape and area is suitable, and is divided into the both sides of the test zone 21.In the present solution, 22 He of the first access area
The shape of second access area 23 can be it is rectangular, it is semicircle or be in semi-oval.Preferably, first access area 22
It is in semicircle shape with the second access area 23.
Referring to Fig. 4, in the circuit design of wireless device, specified impedance value circuit 40, the specified impedance are often had
It is worth a part of the circuit 40 as circuit on circuit board 100, passes through the impedance of adjusting specified impedance value circuit 40 for designer
Value outputs and inputs power with adjust entire circuit.That is the line impedance of the specified impedance value circuit 40 is by setting
Definite value after meter, the specified impedance value circuit 40 are used to carry out impedance matching, therefore the spy with other electrical equipments or circuit
The precision of the impedance value of constant impedance circuit should be higher.The ground area of the testing weld pad 20 is usually used in as the specified impedance
It is worth the reference ground of circuit 40, in the prior art, since the edge of the ground area is arc-shaped, the specified impedance value
The edge of circuit 40 to the ground area is unsmooth, and reference parameter can not calculate, and cause the resistance of specified impedance value circuit 40
It is anti-uncontrollable.In the present solution, in order to overcome this defect in the prior art, first access area 22 and described second is set and is connect
Area 23 is mutually parallel towards the edge of the passing channel 24, and the specified impedance value circuit 40 is along the passing channel 24
Pass through；Preferably, the edge of the passing channel 24 and the cabling of the specified impedance value circuit 40 are mutually parallel, so that institute
The distance for stating each point to first access area, 22 or second access area 23 on specified impedance value circuit 40 is equal, in order to for
The specified impedance value circuit 40 provides a parameter controllable reference parameter, consequently facilitating designer is to the specified impedance value
The impedance of circuit 40 is designed.
The specified impedance value circuit 40 is arranged along the passing channel；And the specified impedance value circuit passes through the survey
Region is tried, so that tester is by the impedance of the adjusting test zone, to adjust the specified impedance value circuit 40
Impedance, and then adjust entire circuit outputs and inputs power.Test zone 21 in this programme can be rectangular, can also be
It is round.In the present solution, it is preferred that the test zone is rectangular so that the shape of the test zone is regular, edge designs personnel
The impedance of the test zone is calculated, to the impedance of more convenient adjustment specified impedance value circuit.As well as
The test zone 21 needs to be electrically connected with external power test equipment, therefore by 21 side of being arranged to of the test zone
Shape improves the contact of the test zone 21 and external power test equipment to increase the effective area of the test zone 21
Formedness.In another embodiment, there is the test panel 211 that windowing is formed, the test on the rectangular test zone 21
Disk 211 is circle.
Referring to Fig. 5, in the above-described embodiments, the testing weld pad 20 is arranged with the circuit on the pcb board 10 in institute
The same side of pcb board 10 is stated, in the present embodiment, it further includes via 25 that the testing weld pad 20, which is arranged, so that the test
Pad 20 is arranged with the circuit on the pcb board 10 in the two sides of the pcb board 10, further increases the testing weld pad 20
The flexibility of setting.Specifically.The via 25 is located in the passing channel 24, and is set with the interval of the test zone 21
It sets, the via 25 is electrically connected with the test zone 21.When physical circuit designs, the antenna pedestal on the circuit board 100
30, for circuit in the same side of the pcb board 10, the testing weld pad 20 is located at the other side of the pcb board 10, the test weldering
Disk 20 is electrically connected by the via 25 with the circuit.
The utility model also proposes a kind of wireless device, which includes the circuit board 100, the circuit board 100
Concrete structure with reference to above-described embodiment, since this wireless device uses whole technical solutions of above-mentioned all embodiments, because
This at least has all advantageous effects caused by the technical solution of above-described embodiment, and this is no longer going to repeat them.Wherein, described
Wireless device can be wifi equipment or bluetooth equipment etc..
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
It is every under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of circuit board, including pcb board and testing weld pad, which is characterized in that the testing weld pad includes being arranged in the PCB
On plate：
Test zone；
Ground area, including surface are covered with the first access area and the second access area of ground metal layer, first access area
And second be formed with passing channel between access area, the test zone is set in the passing channel, and the test zone
Gap is all had between first access area and the second access area.
2. circuit board as described in claim 1, which is characterized in that the passing channel is in a linear extension.
3. circuit board as claimed in claim 2, which is characterized in that first access area and second access area are towards institute
The edge for stating passing channel is mutually parallel.
4. circuit board as described in claim 1, which is characterized in that the shape of first access area and the second access area and
Area is identical, and is divided into the both sides of the test zone.
5. circuit board as described in claim 1, which is characterized in that the test zone is rectangular；The test section and/or
There is the round test panel that windowing is formed on domain.
6. circuit board as described in claim 1, which is characterized in that the testing weld pad further includes via, and the via is located at
In the passing channel, and it is arranged with the test zone interval；
The via is electrically connected with the test zone.
7. circuit board as described in claim 1, which is characterized in that the circuit board further includes being arranged on the pcb board
Circuit, antenna pedestal；
The circuit has power test point, and the power test point is electrically connected with the test zone of the testing weld pad, and institute
The test zone for stating testing weld pad is connected for power test equipment.
8. the circuit board as described in claim 1 to 7 any one, which is characterized in that the circuit board further includes specified impedance
It is worth circuit, the specified impedance value circuit is arranged along the passing channel；
And the specified impedance value circuit passes through the test zone.
9. circuit board as claimed in claim 8, which is characterized in that the specified impedance value circuit and the two of the passing channel
Side is parallel.
10. a kind of wireless device, which is characterized in that include the circuit board as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721852290.8U CN207766654U (en) | 2017-12-26 | 2017-12-26 | circuit board and wireless device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721852290.8U CN207766654U (en) | 2017-12-26 | 2017-12-26 | circuit board and wireless device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207766654U true CN207766654U (en) | 2018-08-24 |
Family
ID=63184976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721852290.8U Active CN207766654U (en) | 2017-12-26 | 2017-12-26 | circuit board and wireless device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207766654U (en) |
-
2017
- 2017-12-26 CN CN201721852290.8U patent/CN207766654U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |