CN2888450Y - Clamp - Google Patents
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- Publication number
- CN2888450Y CN2888450Y CN 200520037931 CN200520037931U CN2888450Y CN 2888450 Y CN2888450 Y CN 2888450Y CN 200520037931 CN200520037931 CN 200520037931 CN 200520037931 U CN200520037931 U CN 200520037931U CN 2888450 Y CN2888450 Y CN 2888450Y
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- Prior art keywords
- circuit
- anchor clamps
- under test
- board
- connector
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- Expired - Lifetime
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Abstract
The utility model discloses a fixture, comprising a connector, a circuit board and a power socket, the circuit board is fixed in between the connector and power socket, the referred connector comprises an electrical connector pin, the referred circuit board comprises a voltage circuit, the referred electrical pin connects to the corresponding voltage point of the voltage circuit, the input of referred voltage circuit connects to the power socket.
Description
Technical field
The utility model relates to a kind of anchor clamps.
Background technology
In the electronic equipment maintenance test process, need test various circuit boards, and then the main action by the test of board under test being finished maintenance and being detected.Usually board under test is by combining connector on himself connector and the mainboard, power to board under test by mainboard during test, utilize computing machine then, and carry out the loading of softwares such as testing software and interface board/expansion board, provide test required main electric signal by other interfaces on the board under test.
Also needing the prompting according to testing software in actual test process, is that some chip pin on the board under test is introduced electric signal temporarily by special-purpose buckle cable, treat that this chip testing is finished after, remove this band and collude cable.And, need sometimes the important pin electrical quantity of some chip is carried out manual measurement.As seen, in test process, the tester need be at front, the reverse side perseveration of board under test.
But, mainboard generally is a horizontal positioned, if board under test relies on breakout box to be in parallel placement with mainboard, then because of distance between plates from very near, wherein there is one side to be covered by mainboard, on this test board, articulate all unusual difficulties of operation that band colludes cable and measure the pin parameter, also action such as inconvenient load software.If board under test (such as interface board, expansion board etc.) is connected with mainboard is vertical, though the two sides of board under test can be operated, the tester need operate on the plate of vertical state.Board under test causes mother daughter board connector impaired at vertical state labile easily, and does not meet people's general custom in vertical plate drilling, and sight line is also unintelligible, causes searching purpose chip and pin inconvenience.In addition, when the buckle cable was articulated in corresponding pin, because the vertical state of board under test, it was not firm to cause easily articulating, and the phenomenon that test moment hook comes off occurred, and then caused test crash, maintenance difficult.
The utility model content
The purpose of this utility model is to provide a kind of anchor clamps, provides testing power supply by mainboard to it to solve existing board under test, causes the board under test stationkeeping, the technical matters of tester's inconvenient operation.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions:
A kind of anchor clamps, comprise connector, circuit board and supply socket, circuit board is fixed between connector and the supply socket, described connector comprises the electric mortiser pin, described circuit board comprises potential circuit, described electric mortiser pin is connected in the corresponding voltage point of potential circuit, and the input end of described potential circuit is connected in supply socket.
Preferably, described connector also comprises location-plate, following location-plate and contact pin location-plate.
Preferably, described connector also comprises left positioner plate, right positioner plate and contact pin location-plate.
Preferably, described potential circuit comprises holding circuit, and described holding circuit comprises protective tube.
Preferably, described holding circuit also comprises electric capacity.
Preferably, described potential circuit also comprises bleeder circuit, gauge tap and/or light emitting diode.
Preferably, the corresponding voltage point that described potential circuit is connected with the electric mortiser pin comprises primary voltage output terminal and datum output terminal.Described primary voltage output terminal provides test required supply voltage for board under test, and described datum output terminal provides test required low level for board under test.
Preferably, the corresponding voltage point that described potential circuit is connected with the electric mortiser pin also comprises the transformation output terminal through bleeder circuit conversion gained.Described transformation output terminal provides test required supply voltage for board under test.Described transformation output terminal provides control level for the Enable Pin and the reset terminal of board under test.
As can be seen from the above technical solutions, in the utility model, by circuit board external power supply is converted into the required test voltage of board under test, and then the point of the corresponding voltage on the circuit board is connected on the anchor clamps electric mortiser pin, and then be communicated with the mutual clamping of butt joint electric mortiser pin of board under test by anchor clamps electric mortiser pin, make board under test obtain required supply voltage, satisfy the test needs.When thereby the tester carries out test and maintenance to plate, board under test can be disassembled from electronic equipment, by the utility model anchor clamps is its power supply, cooperate other original loaded cables to finish testing software and interface board/loadings such as expansion board software, the various operations of convenient for maintaining tester on board under test.
Description of drawings
Fig. 1 is the disclosed anchor clamps example structure of a utility model synoptic diagram;
Fig. 2 is the potential circuit structural representation of circuit board inside;
Fig. 3 is the internal electrical contact pin structural representation of anchor clamps connector;
Fig. 4 is the structural representation of the Application Example of the utility model anchor clamps;
Fig. 5 is the texture edge figure of Application Example shown in Figure 4.
Embodiment
The utility model discloses a kind of anchor clamps, comprise connector, circuit board and supply socket, circuit board is fixed between connector and the supply socket, described connector comprises the electric mortiser pin, described circuit board comprises potential circuit, described electric mortiser pin is connected in the corresponding voltage point of potential circuit, and the input end of described potential circuit is connected in supply socket.
See also Fig. 1, it is the disclosed anchor clamps example structure of a utility model synoptic diagram.Anchor clamps 100 comprise connector 11, circuit board 12 and supply socket 13.Circuit board 12 is fixed between connector 11 and the supply socket 13.
Connector 11 specifically comprises electric mortiser pin 15, last location-plate 14, following location-plate 16 and contact pin location-plate 17.The major part of described electric mortiser pin 15 is exposed contact pin location-plate 17, and root is fixed in contact pin location-plate 17 inside and penetrates over, until linking to each other with the correspondence position of circuit board.In addition, the reinforcement that last location-plate 14 and following location-plate 16 are mainly used between anchor clamps 100 and the board under test is fixed, therefore, can also adopt other forms of ruggedized construction, ruggedized construction is set: left positioner plate and right positioner plate such as both sides at anchor clamps according to actual conditions.Certainly, these two location-plates also can be set, because the electric mortiser pin in electric mortiser pin 15 in the connector 11 and the board under test connector is corresponding mutually, both can be plugged on together, fix even without the reinforcement of location-plate and also can realize electrical transmission and basicly stable being connected.For the contact pin location-plate, because the root of electric mortiser pin 15 must be connected on the circuit board, therefore also can directly modes such as electric mortiser pin 15 employing welding be fixed on the circuit board, save the contact pin location-plate.
On-off switch S1 be provided with can the handled easily personnel under the situation of needs Switching Power Supply at any time.Because operating personnel in test process, particularly need disconnect the power supply of board under test at any time when maintenance, if each switch all removes to plug power supply, can be cumbersome.When S1 disconnected, the supply voltage of Vin can't be supplied with the circuit of subordinate, so just disconnected the supply voltage of board under test.Certainly, practical application also can not be provided with S1, directly pulls out power supply when needing outage and gets final product.
Holding circuit 22 comprises protective tube 221 and electric capacity 222, and wherein, protective tube 221 is connected between switch S 1 and the voltage output end Vout1, and electric capacity 222 is connected between datum and the voltage output end Vout1.When abnormal conditions appearred in the board under test power up, described holding circuit 22 can play a protective role.Because the eligible for repair circuit board of certain problem has normally appearred in board under test, such as some chip short circuit, may cause the electric current of potential circuit excessive in power up, if the long electronic devices and components damage that will make in the circuit of duration.And protective tube 221 is equivalent to disconnect entire circuit, and then has protected other electronic devices and components in the excessive fusing automatically when the certain numerical value of electric current.Electric capacity 222 is an optimised devices at this circuit, can play the low frequency signal effect of filtering on the direct current, thereby improves the quality of output voltage.
Bleeder circuit 23 comprises divider resistance R1 and R2, and both are connected between switch S 1 and the datum.Under the situation of needs, this bleeder circuit 23 can carry out conversion to input supply voltage Vin, obtains the required magnitude of voltage of other boards under test.Two kinds of situations are arranged usually: the input voltage that a kind of Vin of being is ordered is not the required supply voltage of board under test, the input voltage of ordering such as Vin is 12V, but the supply voltage that board under test needs is 9V, so just need carry out voltage transitions by bleeder circuit 23, the input voltage of 12V is carried out suitable dividing potential drop by divider resistance R1 and R2, obtain the output voltage of 9V, and then 9V voltage is offered board under test; Another kind of situation be some board under test (such as interface board) when test, also need to provide the corresponding signal level of some control end (as Enable Pin and reset terminal).Usually the required level of control end is different from supply voltage, and then will carry out dividing potential drop to supply voltage by bleeder circuit, obtains required control end voltage.
Typically, wish when interface board is tested not to be reset, so that seizure test signal, and plate is in the condition of non-reset mode all the time is that the reset terminal signal of interface board is always high level (as 3.3V), so, just supply voltage Vin is converted to the level of 3.3V, uses with the reset terminal that offers interface board by bleeder circuit 23.Thereby when guaranteeing the interface board test, be in non-reset mode all the time.If the required supply voltage of board under test is the input voltage of potential circuit just, and board under test do not need other control voltage yet, then the input voltage through holding circuit directly can be offered board under test, need not bleeder circuit and carries out dividing potential drop.In the practical application, the realization of bleeder circuit can specifically be determined the number and the resistance of divider resistance according to the required voltage value, also can use other circuit to realize the needed magnitude of voltage of board under test.
Light emitting diode D1, handled easily personnel know at a glance whether these anchor clamps are being the board under test power supply.In the practical application, diode D1 is not set, the working voltage table is measured and can be known also whether anchor clamps are being the board under test power supply.Because the forward voltage of light emitting diode D1 is lower, when the overtension of Vout2/Vout3, need between the positive pole of Vout2/Vout3 and D1, be connected in series a divider resistance R3, play current limliting, thereby protect the effect of light emitting diode D1.
More than the potential circuit of circuit board 12 inside is described in detail, the potential circuit in the present embodiment provide altogether 4 voltage output end: Vout1, Vout2, Vout3 and datums ().These several electrical voltage points (voltage output end) are connected with electric mortiser pin 15 in the connector 11.
Please in conjunction with referring to Fig. 3, it is the internal electrical contact pin structural representation of the disclosed a kind of anchor clamps connector of the utility model.
Because it is both electric mortiser pins that board under test is connected with the essence of anchor clamps, the electric signal that electric mortiser pin 15 is entrained, the electric mortiser pin by the board under test connector passes to each chip on the board under test.And the electric signal of electric mortiser pin 15 derives from the potential circuit of circuit board 11 inside, as for which electrical voltage point of electric mortiser pin 15 and potential circuit links to each other, and then depends on the circuit structure of actual board under test.Test and maintenance with a kind of interface board is an example:
Electric mortiser pin among Fig. 3 is divided into 5 rows, 11 of every rows, the wherein GND in a2, a3, a4, a5, a6, the a7 map interlinking 2, b9, b10, b11, the Vout1 in c9, c10, the c11 map interlinking 2, e5 receives the Vout2 among Fig. 2, e10 receives the Vout3 among Fig. 2, and other unwanted contact pins are directly cut and got final product.According to the variation of power supply definition in the interface specification, voltage transitions design more or still less can be arranged for different connectors.In the practical application, potential circuit shown in Figure 2 can be made a circuit board, the pin face of its size and anchor clamps connector shown in Figure 3 matches, and then connector 11 is become an integral body with circuit board 12 crimping.
See also Fig. 4, it is the structural representation of the Application Example of the utility model anchor clamps; And in conjunction with consulting Fig. 5, it is the outboard profile of Fig. 4.Below in conjunction with Fig. 4 and Fig. 5, introduce the application principle of the utility model anchor clamps in detail.
In general, anchor clamps 100 are connected between board under test 41 and the AC/DC adapter 45.AC/DC adapter 45 provides supply voltage for anchor clamps 100, and described supply voltage offers board under test 41 through after the proper transformation of anchor clamps 100.
At first introduce the annexation between AC/DC adapter 45 and the anchor clamps 100.
The standard electric main is transformed to the direct supply of 12V through the conversion of AC/DC adapter 45.Certainly, the model of adapter is a lot, and the supply voltage before and after the conversion also has multiple situation, such as being converted into 9V, multiple direct supply such as 3V.In actual applications, can choose suitable adapter model according to the concrete condition of board under test and anchor clamps.The attaching plug 43 of AC/DC adapter 45 is inserted in the supply socket 13 of anchor clamps 100, is circuit board 12 direct supply voltage is provided.By being connected of electric mortiser pin 15 and circuit board 12 corresponding voltage points, relevant voltage is transferred to electric mortiser pin 15 then.
Secondly, introduce the annexation between anchor clamps 100 and the board under test 41.
Board under test 41 is pegged graft by the board under test connector (or expansion board connector) on it 42 and the connector 11 of anchor clamps 100.Can see in side view shown in Figure 5: the electric mortiser pin 15 of anchor clamps 100 connectors 11 inside and the electrical slot 44 of board under test connector 42 inside are to concern one to one.Because the electric mortiser pin 15 of anchor clamps 100 only is part contact pin (because otiose contact pin pulls out), so have only the part slot of electrical slot 44 can obtain required electric signal (power supply signal, enable signal, reset signal etc.).The electrical slot 44 of board under test connector 42 links to each other with the electric mortiser pin 15 of anchor clamps 100 on the one hand, links to each other with each electronic devices and components of board under test by interconnector on the other hand.
This shows, after board under test 41 disassembles from electronic equipment, can be its supply voltage that provides test to need by anchor clamps 100, and then move various testing softwares and finish corresponding test, and provide convenience for keeping in repair.In addition, if board under test also needs to enable and reset to wait other simple signal level, anchor clamps 100 also can provide.
Above-mentioned disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto.The variation that any those skilled in the art can think (as: change of circuit construction variations and outer shape or the like) all should drop in the protection domain of the present utility model.In sum, this description should not be construed as restriction of the present utility model.
Claims (11)
1, a kind of anchor clamps, it is characterized in that, comprise connector, circuit board and supply socket, circuit board is fixed between connector and the supply socket, described connector comprises the electric mortiser pin, described circuit board comprises potential circuit, and described electric mortiser pin is connected in the corresponding voltage point of potential circuit, and the input end of described potential circuit is connected in supply socket.
2, anchor clamps as claimed in claim 1 is characterized in that, described connector also comprises location-plate, following location-plate and contact pin location-plate.
3, anchor clamps as claimed in claim 1 is characterized in that, described connector also comprises left positioner plate, right positioner plate and contact pin location-plate.
4, anchor clamps as claimed in claim 1 is characterized in that, described potential circuit comprises holding circuit, and described holding circuit comprises protective tube.
5, anchor clamps as claimed in claim 4 is characterized in that, described holding circuit also comprises electric capacity.
6, as any described anchor clamps in the claim 1 to 5, it is characterized in that described potential circuit also comprises bleeder circuit, gauge tap and/or light emitting diode.
7, anchor clamps as claimed in claim 1 is characterized in that, the corresponding voltage point that described potential circuit is connected with the electric mortiser pin comprises primary voltage output terminal and datum output terminal.
8, anchor clamps as claimed in claim 7 is characterized in that, described primary voltage output terminal provides test required supply voltage for board under test, and described datum output terminal provides test required low level for board under test.
9, a kind of anchor clamps as claimed in claim 6 is characterized in that, the corresponding voltage point that described potential circuit is connected with the electric mortiser pin also comprises the transformation output terminal through bleeder circuit conversion gained.
10, anchor clamps as claimed in claim 9 is characterized in that, described transformation output terminal provides test required supply voltage for board under test.
As claim 9 or 10 described anchor clamps, it is characterized in that 11, described transformation output terminal provides control level for the Enable Pin and the reset terminal of board under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520037931 CN2888450Y (en) | 2005-12-29 | 2005-12-29 | Clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520037931 CN2888450Y (en) | 2005-12-29 | 2005-12-29 | Clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2888450Y true CN2888450Y (en) | 2007-04-11 |
Family
ID=38047021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520037931 Expired - Lifetime CN2888450Y (en) | 2005-12-29 | 2005-12-29 | Clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2888450Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833028A (en) * | 2010-05-11 | 2010-09-15 | 浪潮电子信息产业股份有限公司 | Device convenient for testing output voltage of power supply |
| CN101769946B (en) * | 2008-12-31 | 2012-01-11 | 晶能光电（江西）有限公司 | Needle change method of sensor on point measurement machine and needle changer |
-
2005
- 2005-12-29 CN CN 200520037931 patent/CN2888450Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769946B (en) * | 2008-12-31 | 2012-01-11 | 晶能光电（江西）有限公司 | Needle change method of sensor on point measurement machine and needle changer |
| CN101833028A (en) * | 2010-05-11 | 2010-09-15 | 浪潮电子信息产业股份有限公司 | Device convenient for testing output voltage of power supply |
| CN101833028B (en) * | 2010-05-11 | 2012-08-01 | 浪潮电子信息产业股份有限公司 | Device convenient for testing output voltage of power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU HUASAN COMMUNICATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: HANGZHOU HUAWEI 3COM TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 310053, Hangzhou hi tech Industrial Development Zone, Zhejiang hi tech Industrial Park, No. six and No. 310 HUAWEI Hangzhou production base Patentee after: Huasan Communication Technology Co., Ltd. Address before: 310053, Jiang hi tech Industrial Development Zone, Zhejiang, Hangzhou hi tech Industrial Park six and Lu Donghua as the 3Com headquarters Patentee before: Huawei Sankang Technology Co., Ltd., Hangzhou |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070411 |
|
| EXPY | Termination of patent right or utility model |