CN217112415U

CN217112415U - Test fixture

Info

Publication number: CN217112415U
Application number: CN202122105177.6U
Authority: CN
Inventors: 林靖; 柯志明
Original assignee: Topak Power Technology Co ltd
Current assignee: Topak Power Technology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-08-02
Anticipated expiration: 2031-09-01

Abstract

The utility model provides a test fixture, test fixture includes power linked switch, load module, resistance module, plummer and wire, power linked switch is equipped with the lead-out wire, the lead-out wire is used for connecting by the test power, power linked switch, load module and resistance module set up in on the plummer, power linked switch with load module and resistance module pass through the wire series connection. The outgoing line of the power supply connecting switch is connected with a DC line or an AC line of the tested power supply, the size of the load is controlled, test items such as load, overload, short circuit, overcurrent, DC, AC and the like of the tested power supply are tested, the test items are integrated in a set of clamp by the test clamp, the test efficiency is improved, and the cost is reduced.

Description

Test fixture

Technical Field

The utility model relates to an energy storage power supply test field especially relates to a test fixture.

Background

The portable energy storage power supply generally refers to a standby power supply or an emergency power supply with the weight not exceeding 18kg, and the standby power supply or the emergency power supply adopts alternating current or direct current for input charging and adopts alternating current or direct current for output. In recent years, along with the improvement of living standard of people, the market demand for portable energy storage products is also expanding, and meanwhile, the product types are more and more abundant, and more advanced technologies are integrated. The energy storage power supply needs to be tested before being put into use, but the test mode of the test fixture in the current market is single, the test items are few, the existing test items are not comprehensive enough, the key test items can not be tested accurately, and the test parameters can not be accurately known only by subjective judgment on the performance of the energy storage power supply of the same kind, so that the test fixture which is comprehensive in test items, accurate in test and capable of testing the parameters visually is necessary to be provided.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model provides a test fixture.

The utility model provides a test fixture includes power linked switch, load module, resistance module, plummer and wire, power linked switch is equipped with the lead-out wire, the lead-out wire is used for connecting by the test power, power linked switch, load module and resistance module set up in on the plummer, power linked switch with load module and resistance module pass through the wire series connection.

Furthermore, the test fixture is provided with two power connection switches, and outgoing lines on the two power connection switches are respectively connected with a DC line and an AC line of the power to be tested through male and female terminals so as to test energy storage power supplies with different output ports.

Further, the load module is a load meter.

Further, the load module comprises a screw lamp holder, a bulb and an adjusting switch, the screw lamp holder is used for installing the bulb, the screw lamp holder is connected with the adjusting switch through a conducting wire, and the number of the communicated bulbs is changed by controlling the adjusting switch so as to test the load carrying capacity of the tested power supply.

Furthermore, the number of the adjusting switches and the number of the screw lamp holders are multiple, each adjusting switch is connected with the screw lamp holders to form a group of load assemblies, the multiple groups of load assemblies are connected in parallel, and the load assemblies connected in the groups of load assemblies are changed by controlling the adjusting switches in each group of load assemblies so as to test the load carrying capacity of the tested power supply.

Further, the resistance module comprises a resistance component and a key switch, the resistance component is connected with the key switch through a wire, and the key switch is used for controlling whether to access the resistance or not, so that whether to test the DC overcurrent protection function of the tested power supply or not is judged.

Further, the resistor assembly comprises at least two resistors with different resistance values and a selection switch, and the selection switch is used for selecting the connected resistor for testing the DC overcurrent protection function of the tested power supply.

Furthermore, the test fixture is provided with an oscilloscope outgoing line, the oscilloscope outgoing line is connected with an oscilloscope, and the oscilloscope displays data of the tested power supply.

Furthermore, the test fixture is provided with a power meter outgoing line, the power meter outgoing line is connected with the power meter, and the power meter displays the output power of the tested power supply.

To sum up, the utility model provides a test fixture includes power connection switch, load module, resistance module, plummer and wire, power connection switch is equipped with the lead-out wire, the lead-out wire is used for connecting by the test power, power connection switch, load module and resistance module set up in on the plummer, power connection switch with load module and resistance module pass through the wire series connection. The outgoing line of the power supply connecting switch is connected with the DC line or the AC line of the tested power supply, the size of the load is controlled to test the test items of the tested power supply, such as load, overload, short circuit, overcurrent, DC, AC and the like, the test fixture integrates the test items into one set of fixture, the test efficiency is improved, the cost is reduced, and the test fixture is provided with the oscilloscope and the power meter outgoing line, so that a tester can visually test parameters during testing, and the quality of the tested power supply is judged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the test fixture of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				11	Power supply connecting switch	12	Switch lead-out wire
21	Screw lamp holder	22	Regulating switch
				23	Load instrument lead-out wire	32	Push-button switch
4	Bearing platform	5	Oscilloscope lead-out wire
				6	Power meter lead-out wire

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a test fixture.

Referring to fig. 1, in an embodiment of the present invention, the test fixture includes power connection switch 11, load module, resistance module, plummer 4 and wire, be equipped with switch outgoing line 12 on the power connection switch 11, power connection switch outgoing line 12 is used for connecting by the test power supply, power connection switch 11, load module and resistance module set up in on the plummer 4, accessible wire series connection between power connection switch 11 and load module and the resistance module. In the present embodiment, the power connection switch 11 is an air switch.

The switch outgoing line 12 is connected to a DC line of a tested power supply, a load module is connected, the power of the load module is adjusted, the DC load function of the tested power supply can be tested, and the resistor module is started to reach the DC overcurrent protection value of the tested power supply, so that the DC overcurrent protection function of the tested power supply is tested.

In one embodiment, the switch outlet 12 is connected with an AC line of a power supply to be tested, and is connected with a load module, the power of the load module is adjusted, and the AC load and overload functions of the power supply to be tested can be tested.

In one embodiment, the switch outlet 12 is connected with an AC line of a power supply to be tested, and the short-circuit protection function of the power supply to be tested can be tested under the condition that a load module and a resistance module are not connected.

Further, the test fixture is provided with two power connection switches 11, switch outgoing lines 12 on the two power connection switches 11 are connected with a DC line or an AC line of a tested power supply through male and female terminals, and the male and female terminals are connected to facilitate a tester to replace the DC line or the AC line with different specifications, so that energy storage power supplies with different DC or AC specifications can be tested, and when the DC line or the AC line is worn, the tester can easily replace the worn test line.

In one embodiment, the load module comprises a load meter, a load meter outgoing line 23 is arranged on the test fixture, the load meter is connected through the load meter outgoing line 23, the power of the load meter is adjusted, and the DC load-carrying function of the tested power supply can be tested.

In an embodiment, the resistor module includes a resistor component and a key switch 32, the resistor component is connected to the key switch 32 through a wire, the key switch 32 is used to control whether to start the resistor module for DC overcurrent protection test, and starting the key switch 32 can connect the resistor module to a test circuit, so as to test the DC overcurrent protection function of the power supply to be tested. In other embodiments, the resistor assembly may include one resistor, or more than two resistors, to perform over-current protection tests of different magnitudes.

In another embodiment, the load module further includes a plurality of screw sockets 21 and adjusting switches 22, the screw sockets 21 are disposed on the carrying platform 4 and used for mounting bulbs, the screw sockets 21 are connected with the adjusting switches 22 through wires, in an embodiment, the load module includes four screw sockets 21 and two adjusting switches 22, each adjusting switch 22 is connected with two screw sockets 21 connected in series to form two load assemblies, the resistance values of the two load assemblies are different, the two load assemblies are connected in parallel to form the load module, and the adjusting switches 22 are controlled to change the loads of the tested power supply by changing the connected bulbs, so as to test the AC load and overload functions of the tested power supply. Specifically, in this embodiment, one of the adjusting switches 22 may be controlled to connect one of the load components to the test circuit, or two of the adjusting switches 22 may be controlled to connect both of the two load components to the test circuit, so that three groups of loads with different resistances may be connected to the test circuit respectively.

In one embodiment, the test fixture is provided with an oscilloscope outgoing line 5, one end of the oscilloscope outgoing line 5 is connected to the test circuit, the other end of the oscilloscope outgoing line 5 is used for being connected with an oscilloscope, when the switch outgoing line 12 is connected with an AC line of a power supply to be tested, the oscilloscope can display parameters such as AC output waveform, voltage, frequency and the like of the power supply to be tested in real time, and a tester can visually judge the quality and the badness of a product by the parameters of the power supply to be tested.

In one embodiment, the test fixture is provided with a power meter outgoing line 6, one end of the power meter outgoing line 6 is connected to the test circuit, the other end of the oscilloscope outgoing line 6 is used for connecting the power meter, and when the switch outgoing line 12 is connected to an AC line of a power source to be tested, a tester can check the power output by the power source to be tested in real time through the power meter, so that the power displayed on the power source to be tested can be conveniently calibrated.

To sum up, the utility model provides a test fixture includes power connection switch, load module, resistance module, plummer and wire, power connection switch is equipped with the lead-out wire, the lead-out wire is used for connecting by the test power, power connection switch, load module and resistance module set up in on the plummer, power connection switch with load module and resistance module pass through the wire series connection. The test fixture is provided with the oscilloscope and the power meter outgoing line, so that a tester can visually test parameters during testing, and the quality of the power supply to be tested is judged.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a test fixture, its characterized in that, test fixture includes power linked switch, load module, resistance module, plummer and wire, power linked switch is equipped with the lead-out wire, the lead-out wire is used for connecting by the test power, power linked switch, load module and resistance module set up in on the plummer, power linked switch with load module and resistance module pass through wire series connection.

2. The test fixture of claim 1, wherein two power connection switches are provided on the test fixture, and outgoing lines of the two power connection switches are respectively connected with a DC line and an AC line of a power source to be tested through male and female terminals, so as to test energy storage power sources with different output ports.

3. The test fixture of claim 1, wherein the load module is a load meter.

4. The test fixture of claim 1, wherein the load module comprises a screw socket, a bulb and an adjusting switch, the screw socket is used for installing the bulb, the screw socket is connected with the adjusting switch through a conducting wire, and the load capacity of the tested power supply is tested by controlling the adjusting switch to change the number of the communicated bulbs.

5. The test fixture of claim 4, wherein the number of the adjusting switches and the screw sockets is plural, each adjusting switch is connected with a plurality of screw sockets to form a group of load assemblies, the plural groups of load assemblies are connected in parallel, and the load assemblies are changed by controlling the adjusting switches in each group of load assemblies to test the load carrying capacity of the tested power supply.

6. The test fixture of claim 1, wherein the resistor module comprises a resistor assembly and a key switch, the resistor assembly is connected with the key switch through a wire, and the key switch is used for controlling whether to switch in the resistor or not so as to test whether to perform a DC overcurrent protection function of the tested power supply or not.

7. The test fixture of claim 6, wherein the resistor assembly includes at least two resistors of different resistances and a selector switch for selecting the resistor to be switched in for performing a DC overcurrent protection function for testing the power supply under test.

8. The test fixture of claim 1, wherein the test fixture is provided with an oscilloscope lead, the oscilloscope lead is connected with an oscilloscope, and data of the tested power supply is displayed by the oscilloscope.

9. The test fixture of claim 1, wherein the test fixture is provided with a power meter outlet, the power meter outlet being connected to a power meter, the power meter displaying the output power of the power source under test.