阅读说明：本技术 一种固体继电器功耗测试装置 (Solid relay power consumption testing arrangement ) 是由 吴风波 李鹏 陈斯伟 李东江 唐春花 胡朝灵 姚文国 杨英华 李娟� 宋泽天 蒋 于 2020-05-18 设计创作，主要内容包括：本发明公开了一种固体继电器功耗测试装置,包括电流采集处理模块,用于对待测试固体继电器每组触点的输入端电流、输出端电流进行采集,并对采集得到的电流进行分析处理后显示；电压采集处理模块,用于对待测试固体继电器每组触点的输入端电压、输出端电压进行采集,并对采集得到的电压进行分析处理后显示。本发明提供的测试装置通过电流采集处理模块、电压采集处理模块对待测试固体继电器触点输入端、输出端电流、电压进行采集,并进行分析处理后显示,实现了对待测试固体继电器触点输入端、输出端电流、电压进行采集、处理及显示,大大降低了交流固体继电器在触点压降采集过程发生安全事故的概率。(The invention discloses a power consumption testing device of a solid relay, which comprises a current collecting and processing module, a power consumption testing module and a power consumption testing module, wherein the current collecting and processing module is used for collecting input end current and output end current of each group of contacts of the solid relay to be tested, analyzing and processing the collected currents and displaying the currents; and the voltage acquisition and processing module is used for acquiring the input end voltage and the output end voltage of each group of contacts of the solid relay to be tested, analyzing and processing the acquired voltage and displaying the voltage. The testing device provided by the invention collects the current and the voltage of the input end and the output end of the contact of the solid relay to be tested through the current collecting and processing module and the voltage collecting and processing module, analyzes and processes the current and the voltage and then displays the current and the voltage, so that the current and the voltage of the input end and the output end of the contact of the solid relay to be tested are collected, processed and displayed, and the probability of safety accidents of the alternating current solid relay in the contact voltage drop collecting process is greatly reduced.)

1. A solid state relay power consumption testing device, the device comprising:

the current acquisition and processing module is used for acquiring the input end current and the output end current of each group of contacts of the solid relay to be tested, analyzing and processing the acquired currents and displaying the analyzed and processed currents;

and the voltage acquisition and processing module is used for acquiring the input end voltage and the output end voltage of each group of contacts of the solid relay to be tested, analyzing and processing the acquired voltage and displaying the voltage.

2. The solid state relay power consumption testing device of claim 1, wherein: the device also comprises an adjustable direct current voltage conversion module which is used for providing different working voltages for different relays to be tested.

3. The solid state relay power consumption testing device of claim 1, wherein: the device also comprises a start-stop module for controlling the start and stop of the device.

4. The solid state relay power consumption testing device of claim 3, wherein: the start-stop module comprises a first switch S1 used for loading excitation on the contact input end of the solid relay to be tested and/or a start-stop circuit used for controlling the start and stop of the voltage acquisition processing module.

5. The solid state relay power consumption testing device of claim 4, wherein: the start-stop circuit comprises a second switch S2 and a first relay, a normally closed contact and a movable contact of the first relay are respectively connected with the input end of the voltage acquisition module, and the normally closed contact of the first relay is used as a contact of a to-be-tested solid relay as an acquisition end; the normally open contact of the first relay is used as the contact of the other acquisition end for connecting the solid relay to be tested; the coil loaded to the first relay via the second switch S2 is energized.

6. The solid state relay power consumption testing device of claim 5, wherein: the start-stop circuit further comprises indicator lights connected in parallel to two ends of the first relay coil.

7. The solid state relay power consumption testing device of claim 1, wherein: the device also comprises a data holding module which is used for generating a control signal to enable the current acquisition processing module and/or the voltage acquisition processing module to lock display data.

8. The solid state relay power consumption testing device of claim 7, wherein: the data holding module comprises a third switch S3 and a second relay, a normally closed contact of the second relay is suspended, and the normally open contact and the normally closed contact are respectively connected with the current acquisition processing module and the voltage acquisition processing module; the coil loaded to the second relay through the third switch S3 is energized.

9. The solid state relay power consumption testing apparatus according to any one of claims 1 to 8, characterized in that: the device also comprises a power supply module, wherein the power supply module comprises a voltage conversion circuit and/or a voltage reduction circuit which converts the 220V alternating current into the direct current.

10. The solid state relay power consumption testing device of claim 9, wherein: the power supply module also comprises an alternating current input control circuit which is used for power supply control, and when a short circuit occurs, the live wire end of the alternating current input is disconnected.

11. The solid state relay power consumption testing apparatus according to any one of claims 1 to 8, characterized in that: the device also comprises a load module which provides rated current for the output end of the solid relay to be tested.

12. The solid state relay power consumption testing apparatus according to any one of claims 1 to 8, characterized in that: the number of the current acquisition processing modules and the number of the voltage acquisition processing modules can be matched with the number of contact groups of the power consumption testing device of the solid relay to be tested.

Technical Field

The invention belongs to the field of electronic appliances, and particularly relates to a solid relay power consumption testing device.

Background

The solid relays need to test the power consumption of products in test items, only one group of solid relays can be tested in the conventional test method at each time, multiple groups of solid relays need to be tested simultaneously according to the GJB1515A standard, the solid relays cannot be tested separately, repeated tests are sometimes needed, and the consistency of data cannot be guaranteed. Therefore, the current testing method does not meet the testing requirement of GJB1515A according to the national military standard. For products, the number of groups is large, the pins are close to each other, short circuit phenomena (parts are high-voltage products and are very dangerous in a manual test process) are very easy to occur in the test process, so that the products are burnt, and the manually-built circuit is easy to have the phenomena of dislocation, falling and mistaken collision, so that safety accidents are caused; based on the above considerations, a device capable of directly testing the contact voltage drop is needed.

Disclosure of Invention

The invention aims to provide a solid relay power consumption testing device which can effectively acquire, process and display current and voltage data at two ends of a contact of an alternating current solid relay and can greatly reduce the probability of safety accidents of the alternating current solid relay in the process of acquiring the contact voltage drop.

To achieve the object of the present invention, a solid state relay power consumption testing apparatus provided herein includes:

the current acquisition and processing module is used for acquiring the input end current and the output end current of each group of contacts of the solid relay to be tested, analyzing and processing the acquired currents and displaying the analyzed and processed currents;

and the voltage acquisition and processing module is used for acquiring the input end voltage and the output end voltage of each group of contacts of the solid relay to be tested, analyzing and processing the acquired voltage and displaying the voltage.

The power consumption testing device provided by the invention realizes the acquisition, analysis and processing of the input and output currents and the input and output voltages of each group of contacts of the solid relay to be tested through the current acquisition processing module and the voltage acquisition processing module, and then displays the acquired and processed currents and voltages, and the power consumption of the contacts of the solid relay to be tested can be obtained through the current and voltage values. The circuit built manually is not needed, and the probability of safety accidents of the alternating current solid relay in the contact voltage drop acquisition process is greatly reduced.

Furthermore, the testing device provided by the invention further comprises an adjustable direct-current voltage conversion module which is used for providing different working voltages for different relays to be tested. In the testing process, excitation loaded on a coil of the solid relay to be tested needs to be controlled, and the on-off function of the contact of the solid relay to be tested is realized; for relays with different specifications, coil voltages are different, the adjustable direct-current voltage conversion module provides different working voltages so as to meet power consumption tests of solid relays with different specifications, and the applicability of the testing device is expanded.

Furthermore, the testing device provided by the invention also comprises a start-stop module for controlling the start and stop of the device. The start and stop of the test are realized through the start and stop module.

Furthermore, the testing device provided by the invention further comprises a data holding module, and the data holding module is used for generating a control signal to enable the current acquisition processing module and/or the voltage acquisition processing module to lock display data. The data is frozen on the display screen through the data holding module, the excitation loaded on the input and the output of the solid relay to be tested can be cut off, the continuous power-on time of the testing device is shortened, and the damage of the testing device is avoided.

Further, the testing device provided by the invention further comprises a power supply module, wherein the power supply module comprises a voltage conversion circuit and/or a voltage reduction circuit which converts 220V alternating current into direct current.

Furthermore, the power supply module also comprises an alternating current input control circuit which is used for power supply control, and when a short circuit occurs, the fire wire end of the alternating current input is disconnected. The short-circuit protection of the device is realized through the alternating current input control circuit.

Furthermore, the power supply module also comprises a load module which provides rated current for the output end of the solid relay to be tested.

Furthermore, the number of the current acquisition processing modules and the number of the voltage acquisition processing modules can be matched with the number of contact groups of the power consumption testing device of the relay to be solid; and the data test of multiple groups of contacts is realized.

The invention has the beneficial effects that: the testing device provided by the invention collects the current and the voltage of the input end and the output end of the contact of the solid relay to be tested through the current collecting and processing module and the voltage collecting and processing module, analyzes and processes the current and the voltage and then displays the current and the voltage, so that the current and the voltage of the input end and the output end of the contact of the solid relay to be tested are collected, processed and displayed, and the probability of safety accidents of the alternating current solid relay in the contact voltage drop collecting process is greatly reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a circuit diagram of a power consumption testing apparatus according to the present invention;

FIG. 2 is a second circuit diagram of the power consumption testing apparatus according to the present invention;

FIG. 3 is a circuit diagram of a current collection and processing module according to the present invention;

fig. 4 is a partial circuit diagram of an input terminal current collecting and processing module provided in the present invention;

fig. 5 is a partial circuit diagram of an output terminal current collecting and processing module provided by the present invention;

fig. 6 is a circuit diagram of an input terminal voltage acquisition processing module provided in the present invention;

fig. 7 is a circuit diagram of an output terminal voltage acquisition processing module provided in the present invention;

FIG. 8 is a circuit diagram of an AC input control circuit according to the present invention;

in the drawings: j9, J10, J11 and J12 are first relays, and J1, J5, J14 and J18 are second relays; j13 is the solid relay to be tested.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Referring to fig. 1 to 8, the solid state relay power consumption testing device provided herein includes the following functional modules:

the power supply module is used for converting alternating current into direct current and comprises an alternating current input control circuit, a voltage conversion circuit and/or a voltage reduction circuit; as shown in fig. 1, the ac input control circuit includes a fuse F1, a resistor R81, and an indicator LED5, the fuse F1 is connected in series to the live line terminal of the ac power to implement short-circuit protection of the device, the resistor R81 and the indicator LED5 are connected in series between the live line terminal and the neutral line terminal of the ac power, an indication function is implemented by the indicator LED5, and when 220V ac power is applied, the indicator LED5 is in a working state to perform power indication. As shown in fig. 1, the voltage conversion circuit is a dc switching power supply, the input end of the voltage conversion circuit is connected to the output end of the ac input control circuit, and the module rectifies and filters 220V ac power, and then can directly convert the 220V ac power into dc power to provide corresponding working voltage for internal devices; the direct current switching power supply can adopt any switching power supply with current not exceeding 12A, such as an SE-600-48 switching power supply, and outputs 48V direct current. The voltage reduction circuit adopts a high-power voltage reduction circuit and comprises a high-power direct current DC-DC voltage reduction chip and a resistor R82, and the direct current output by the voltage conversion circuit is reduced by the high-power direct current DC-DC voltage reduction chip to provide the working voltage of the related functional module; the voltage reduced by the voltage reduction circuit can be set according to the functional module, such as 12V direct current voltage.

And the adjustable direct-current voltage conversion module is used for providing different working voltages for different solid relay coils to be tested. As shown in fig. 1, the adjustable dc voltage converting module includes a digital encoder, a potentiometer connected to the digital encoder through a switch S5, and a liquid crystal display screen communicatively connected to the digital encoder; the input voltage of the digital encoder is provided by the voltage conversion circuit, the output end of the digital encoder is used for being connected with a coil of the solid relay to be tested, and different voltages are output according to the solid relays to be tested with different specifications.

The on-off times of the contactor is manually controlled by controlling the on-off of the switch S5, and the potentiometer is adjusted to change the signal input into the digital encoder, so that the purpose of outputting different voltages is achieved. The liquid crystal display screen is used for displaying the output voltage of the digital encoder and intuitively knowing the output voltage of the digital encoder. The digital encoder is stored with an internal program which can be operated after being electrified, the program is operated after being electrified to realize the control of on-off times according to the on-off of the switch S5, and the digital encoder is enabled to output different values of voltage after the potentiometer is adjusted, wherein the digital encoder, the liquid crystal display screen, the potentiometer and the switch S5 are combined into a DPX6012 module.

And the current acquisition and processing module is used for acquiring the input end current and the output end current of each group of contacts of the solid relay to be tested, and analyzing and processing the acquired currents and then displaying the analyzed and processed currents. The current collecting and processing module provided by the invention comprises an input end current collecting and processing module and an output end current collecting and processing module, and is shown in a combined manner in fig. 2, fig. 3 and fig. 4, the input end current collecting and processing module and the output end current collecting and processing module provided by the invention are respectively connected in series with the input end and the output end of the tested solid relay, and when the input current and the output current form a loop, the input/output current can be directly displayed; the current acquisition processing module at the input end adopts DM 4A-A3-R3; the output end current acquisition processing module adopts DM 4A-A5-R3. The quantity of the input current acquisition and processing module and the output current acquisition and processing module can be matched with the quantity of the contact groups of the solid relay to be tested, and the input end current and the output end current of each contact group are respectively acquired.

And the voltage acquisition and processing module is used for acquiring the input end voltage and the output end voltage of each group of contacts of the solid relay to be tested, analyzing and processing the acquired voltage and displaying the voltage. The current collecting and processing module provided by the invention comprises an input end voltage collecting and processing module and an output end voltage collecting and processing module, and is shown in a combined manner in fig. 2, fig. 5 and fig. 6, the input end voltage collecting and processing module and the output end voltage collecting and processing module provided by the invention are respectively connected in parallel with the input end and the output end of the tested solid relay, and when input current and output current form a loop, the input/output voltage can be directly displayed; the input end voltage acquisition processing module adopts DM 4A-V3-R3; the output end voltage acquisition processing module adopts DM 4A-V2-R3. The number of the input voltage acquisition and processing modules and the number of the output voltage acquisition and processing modules can be matched with the number of the contact groups of the solid relay to be tested, and the voltage of the input end and the output end of each group of contacts can be acquired respectively.

And the data holding module is used for generating a control signal to enable the current acquisition processing module and/or the voltage acquisition processing module to lock the display data. As shown in fig. 4-7, the data holding module provided herein includes a third switch S3 and a second relay, wherein a normally closed contact of the second relay is floating, and the normally open contact and the moving contact are respectively connected to the current collecting and processing module and the voltage collecting and processing module; the coil loaded to the second relay via the third switch S3 is energized. When the third switch S3 is pressed, the coil loaded on the second relay is excited to open the normally closed contact and close the normally open contact, and a control signal is generated to close the holding judgment ends of the input current acquisition processing module and the voltage acquisition processing module, so that the displayed data is kept unchanged.

And the start-stop module is used for controlling the start and stop of the device. The start-stop module provided by the invention comprises a first switch S1 for loading excitation on the contact input end of the solid relay to be tested and/or a start-stop circuit for controlling the start and stop of the voltage acquisition processing module. As shown in fig. 7, the start-stop circuit provided herein includes a second switch S2 and a first relay, a normally closed contact and a moving contact of the first relay are respectively connected to the input end of the voltage acquisition module, and the normally closed contact of the first relay is used as an acquisition end for receiving a contact of the solid relay to be tested; a normally open contact of the first relay is used as a contact of the other acquisition end for receiving the solid relay to be tested; the coil loaded to the first relay via the second switch S2 is energized. When the second switch S2 is pressed down, the coil loaded on the first relay is excited to open the normally closed contact, the normally open contact is closed, the voltage acquisition circuit is communicated, the voltage acquisition and analysis processing are started, and after the second switch S2 is pressed down again, the first relay is reset, the normally open contact is opened, and the voltage acquisition and analysis processing are stopped.

The start-stop circuit further comprises indicator lamps connected in parallel to two ends of the first relay coil and used for indicating the working state of the voltage acquisition and processing module.

And the load module is used for providing rated current for the output end of the solid relay to be tested, and comprises a load resistor and a load power supply, as shown in figure 2.

In order to realize the control of the alternating current 220V input, a fourth switch S4 is added in the alternating current input control circuit, and the fourth switch S4 and the F1 fuse are connected in series at the fire wire end to realize the total power supply control of the device, as shown in FIG. 8.

The test device provided by the invention can be used for testing the power consumption of the solid relay and can also be used for testing the power consumption of other relays.

The test device provided herein has the following advantages:

1) the voltage drop data at two ends of the solid relay contact can be effectively collected, processed and displayed;

2) the probability of safety accidents of the alternating current solid relay in the contact voltage drop acquisition process can be greatly reduced;

3) the steps of the solid relay in the contact voltage drop acquisition process can be reduced, and the voltage drop at two ends of the contact of the solid relay can be acquired by one key;

4) the input and output loads of the solid relay can be disconnected after the acquired power consumption data are directly kept on a screen, so that the continuous power-on time is reduced, and the damage of the tested solid relay is avoided;

5) one-touch acquisition of multiple sets of test data, such as 16 sets of test data, can be achieved.

The present disclosure has been described in terms of the above-described embodiments, which are merely exemplary of the implementations of the present disclosure. It must be noted that the disclosed embodiments do not limit the scope of the disclosure. Rather, variations and modifications are possible within the spirit and scope of the disclosure, and these are all within the scope of the disclosure.