CN208488515U - A kind of fuse base - Google Patents

Abstract

The utility model belongs to service technique field, and in particular to a kind of fuse base.When breaking down to solve fuse place equipment, since equipment inner structure where fuse is complicated, cause to examine the problem that the fuse failure working time is longer and operating process is cumbersome.The utility model discloses a kind of fuse base, which is characterized in that including bottom plate and is set at least one test loop of bottom plate, wherein, each test loop includes test circuit, fuse interface and analog circuit tie point, wherein test circuit is in parallel with the fuse interface.Above-mentioned technical proposal can access multiple fuses by U-shaped card piece simultaneously, and the failure for directly carrying out detecting and determining local circuit inside equipment by the test circuit of test fuse failure state solves the problems, such as that the equipment fault working time where examining fuse is longer and operating process is cumbersome.

Description

A kind of fuse base

Technical field

The utility model relates to nuclear power service technique fields, and in particular to a kind of fuse base.

Background technique

In nuclear power maintenance process, in order to protect the normal operation of equipment, phase has been used in each circuit inside the equipment The fuse answered, to protect current supply circuit.When certain primary Ioops had the road fluidity failure Shi Gai fuse can be due to electric current is excessive Automatic fusing, and achieve the purpose that protect current supply circuit not overload operation.

Currently, when overhauling faulty fuse, because equipment home loop where fuse is relatively more, each circuit electricity Pressure grade is different: such as distribution board switch drawer control loop has used direct current 110v, 48v, 24v, control inside lathe Circuit processed has used exchange 220v, 110v, 48v, 24v etc., causes fuse open circuit property when a certain branch had fluidity failure It is unavailable that whole equipment control loop will be will lead to when damage.Veteran maintenance master worker is needed to press when handling the type failure According to drawing, test voltage and each branch through and off judge trouble location one by one, due to equipment inner structure complexity, cause to examine Repair that the working time is longer and cumbersome, any little deviation can have the risk for expanding fault coverage therebetween, and operation is imitated Rate is not high.

In view of the above-mentioned problems, currently no effective solution has been proposed.

Utility model content

For the defects in the prior art, it the utility model discloses a kind of fuse base, solves due to fuse Place equipment inner structure is complicated, causes to examine the problem that the fail operation time is longer and operating process is cumbersome.

A kind of fuse base including bottom plate and is set at least one test loop of bottom plate, wherein each survey Examination circuit includes test circuit, fuse interface and analog circuit tie point, wherein test circuit and fuse interface are simultaneously Connection.

Further, each test loop includes first fuse interface and second fuse interface, and first fuse connects Mouth and second fuse interface are connected to the two sides of analog circuit tie point.

Further, each test circuit includes the first rectification circuit, the second rectification circuit, the first current-limiting resistance, second Current-limiting resistance, the first indicator light and the second indicator light, wherein the first rectification circuit, the first current-limiting resistance and the first instruction After lamp string connection, it is integrally parallel to first fuse interface both ends, the second rectification circuit, the second current-limiting resistance and the second indicator light After series connection, it is integrally parallel to second fuse interface both ends.

Further, fuse interface is the U-shaped card piece for being clamped fuse.

Further, bottom plate is connected with U-shaped card piece using fixing bolt connection type.

Further, there are four angles for bottom plate, and have the circular opening for fixing entire pedestal on four angles.

Further, in the case where the quantity of test loop is multiple, different test loops corresponds to different surveys Try voltage.

It is using the advantages of the technical solution of the utility model:

(1) it by least one test loop on pedestal, can be detected respectively for local circuit inside equipment And determine failure；

(2) by the way that multiple test loops are arranged, and each test loop corresponds to different operating voltages, can pass through Different test loops on one piece of pedestal detect the circuitry of different voltages, respectively to be accurately positioned abort situation；

(3) it is which fuse goes out that the indicator light that user passes through inside test circuit in operation, which is directly observed, It now opens a way, that is, can determine the abort situation of equipment, reduce more people in detection process and detect fuse in device context for a long time The potential industry security risk of failure bring, and without according still further to drawing, test voltage is taken considerable time one by one, it improves The working efficiency for detecting fuse failure, when solving fuse failure, since equipment inner structure where fuse is multiple It is miscellaneous, cause to examine the problem that the fuse failure working time is longer and operating process is cumbersome.

(4) fuse is accommodated as fuse interface by U-shaped card piece, can allows the easier for installation of fuse, Keep fault test faster, simple.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of fuse base of the utility model embodiment；

Fig. 2 is the circuit diagram of the fuse base of the utility model embodiment.

Specific embodiment

Technical solutions of the utility model are described in detail below in conjunction with attached drawing, following embodiment is only used for more The technical solution of the utility model is clearly demonstrated, therefore is intended only as example, and cannot be used as a limitation limitation the utility model Protection scope.

Fig. 1 is a kind of structural schematic diagram of fuse base of the utility model embodiment.

In conjunction with Fig. 1, the detection fuse failure pedestal according to the present embodiment include bottom plate 1, on bottom plate 1 for pacifying It fills multiple U-shaped card pieces (that is, fuse connector) 2 of fuse and is used to test fuse failure state on bottom plate 1 Test circuit.

Further, in the above-mentioned technical proposal of the utility model, bottom plate 1 and the U-shaped card piece 2 use fixing bolt 3 Connection type connection.

Further, in above-mentioned technical proposal, there are four angles for bottom plate 1, and have on four angles for fixing entire pedestal Circular opening 5.

Further, in the above-mentioned technical proposal of the utility model, the quantity of fixing bolt 3 is 12.

Further, 1 front of bottom plate further includes multiple external cable connection bolts 4 for connecting external analog circuitry.

Further, the quantity of external cable connection bolt 4 has 12.

Further, multiple 3 quantity of U-shaped card piece are 12.

Fig. 2 is a kind of circuit diagram of fuse base of the utility model embodiment.

Further, in conjunction with Fig. 2, above-mentioned detection fuse failure pedestal according to the present utility model, testing circuit includes Three test loops (be referred to as test branch, in other embodiments, the quantity of test loop can be 1,2 or More), in practical applications, different test loops can correspond to different test voltages, for the circuit shown in Fig. 2, The test loop of the leftmost side can be 24V test branch, intermediate test loop can be 48V test road, the test of the rightmost side Circuit can be 110V test branch.

In the example shown in figure 2, each test loop includes that two fuse interfaces (in other instances, fuse Device interface is also possible to one), analog circuit tie point and two test circuits, the two test circuits and fuse interface It corresponds and parallel with one another, two fuse interfaces are connected to the two sides of analog circuit tie point.

It include to be tested first in the test branch after fuse interface plugs fuse by taking 24V test loop as an example Fuse FU1 and second fuse FU2 to be tested, the two fuses will be connected to the two sides of analog circuit interface B, D, the survey Trying branch includes test circuit corresponding with two fuses (fuse interface), and a test circuit includes first resistor R1 (playing metering function), the first indicator light D1 (can be light emitting diode) and the first rectifier bridge D7, another test circuit include Second resistance R2 (playing metering function), the second indicator light D2 and the second rectifier bridge D8.First resistor R1 (playing metering function), first After indicator light D1 and the first rectifier bridge D7 series connection, entirety is connected in parallel on the both ends of first fuse FU1；Second resistance R2 (rises Metering function), the second indicator light D2 and the second rectifier bridge D8 series connection after, entirety is connected in parallel on the both ends second fuse FU2.

In this way, when analog circuit interface B, D access analog circuit and by the conducting of B, D two o'clock and when test loop is energized, If first fuse FU1 and second fuse FU2 to be tested are not blown, test circuit will not be powered, therefore two surveys Indicator light in examination circuit will not shine, once any one in first fuse FU1 and second fuse FU2 to be tested Or two be blown, corresponding indicator light will shine, and carry out fault cues.

Other two test loop is similar with the structure of 24V test loop, and only the parameter of its internal components is configured as It is tested under other voltages.

It includes third fuse FU3 to be tested, the 4th fuse FU4 to be tested, 3rd resistor that 48V, which tests branch, R3, the 4th resistance R4, third indicator light D3, the 4th indicator light D4, third rectifier bridge D9 and the 4th rectifier bridge D10.

It includes the 5th fuse FU5 to be tested, the 6th fuse FU6 to be tested, the 5th resistance that 110V, which tests branch, R5, the 6th resistance R6, the 5th indicator light D6, the 6th indicator light D7, the 5th rectifier bridge D11 and the 6th rectifier bridge D12.

It can be understood that the utility model is not limited solely to 24V, 48V and 110V, and we are only normal with these The technical solution of the utility model is better understood with voltage, and in practical applications also be not only 24V, 48V and 110V is two fuses of measurement, can measure the fuse of more 24V, 48V and 110V according to actual needs.It is surveyed with 24V It, can be by appointing in the interface of the interface for being used to connect first fuse FU1 and connection second fuse FU2 for trying circuit One is saved, or can also increase fuse interface and corresponding test circuit in other needed positions.

Below with reference to the application method of circuit 24V voltage circuit introduction detection fuse base.

The first step fixes bottom plate 1 by circular opening 5；

Fuse is ensured to connect correct fastening according to the connection of circuit diagram shown in Fig. 2 by second step；

Third step checks that indicator light does not shine under the fuse reference performance of the circuit 24V.Fuse is separately mounted to Detent where first indicator light D1 and the second indicator light D2.External analog circuitry simulated operation button K, 24V voltage is pressed through A Point, through first fuse FU1 to B point to be tested, through analog circuit indicator light LA and operation button K, through D point, through to be tested molten Disconnected device FU2 is formed into a loop through C point, and analog circuit indicator light LA obtains electroluminescence.First rectifier bridge D7 and the second rectifier bridge D8 at this time Voltage can not be obtained because two fuses are normal, the first indicator light D1 and the second indicator light D2 cannot get voltage, without report It is alert；At this moment we have seen that when fuse is normal, indicator light does not shine.

4th step, indicator light shines in the case of testing the circuit 24V fuse failure.External power supply is first disconnected, A, B point are pulled up Between first fuse FU1 to be tested, fuse FU1 exactly to be tested is faulty situation, then external power supply is closed a floodgate, Then simulated operation button K is pressed.Since the first fuse FU1 to be tested between A, B point is pulled out, 24V voltage through A point, Through the first rectifier bridge D7 rectify, through the first indicator light D1, current-limiting resistance R1, B point, simulation load LA, operation button K, D point and to Second fuse FU2 to C point forming circuit is tested, the first indicator light shines, at this moment we have found that fuse failure between A, B When, the first indicator light shines.

To sum up, by the detection fuse failure pedestal of the utility model, user passes through test electricity in operation It is which fuse breaks down that indicator light inside road, which is directly observed, reduces in detection process more people for a long time in equipment The potential industry security risk of on-site test fuse failure bring, and without according still further to drawing, test voltage expends greatly one by one The time is measured, the working efficiency of detection fuse failure is improved, when solving fuse failure, due to being set where fuse Standby internal structure is complicated, causes to examine the problem that the fuse failure working time is longer and operating process is cumbersome.

By the detection fuse failure pedestal of the utility model, multiple fuses in whole equipment are concentrated on one The test circuit substrate of multiple U-shaped card pieces of installation fuse and the test fuse failure state on bottom plate is gathered On, it may be implemented once to test multiple fuses, keep the fault test of fuse faster, simple.

In the specification of the utility model, numerous specific details are set forth.It is to be appreciated, however, that the reality of the utility model Applying example can practice without these specific details.In some instances, well known method, knot is not been shown in detail Structure and technology, so as not to obscure the understanding of this specification.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should manage Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model The range of each embodiment technical solution should all cover in the claim of the utility model and the range of specification.

Claims (7)

1. a kind of fuse base, which is characterized in that including bottom plate and be set at least one of the bottom plate and test back Road, wherein each test loop includes test circuit, fuse interface and analog circuit tie point, wherein test circuit It is in parallel with the fuse interface.

2. fuse base according to claim 1, which is characterized in that each test loop includes first fuse interface With second fuse interface, the first fuse interface and the second fuse interface are connected to the analog circuit The two sides of tie point.

3. fuse base according to claim 2, which is characterized in that each test circuit include the first rectification circuit, Second rectification circuit, the first current-limiting resistance, the second current-limiting resistance, the first indicator light and the second indicator light, wherein described first After rectification circuit, first current-limiting resistance and first indicator light series connection, integrally it is parallel to the first fuse and connects Mouth both ends are integrally parallel to institute after second rectification circuit, second current-limiting resistance and second indicator light series connection State second fuse interface both ends.

4. fuse base according to claim 1, which is characterized in that the fuse interface is for being clamped fuse U-shaped card piece.

5. fuse base according to claim 4, which is characterized in that the bottom plate and the U-shaped card piece are using fixation Bolt connecting mode connection.

6. fuse base according to claim 1, which is characterized in that the bottom plate is there are four angle, and described four There is the circular opening for fixing entire pedestal on angle.

7. fuse base according to claim 1, which is characterized in that test loop quantity be multiple situations Under, different test loops corresponds to different test voltages.