CN215493859U - Multichannel conversion device and sample testing device - Google Patents
Multichannel conversion device and sample testing device Download PDFInfo
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- CN215493859U CN215493859U CN202023254856.1U CN202023254856U CN215493859U CN 215493859 U CN215493859 U CN 215493859U CN 202023254856 U CN202023254856 U CN 202023254856U CN 215493859 U CN215493859 U CN 215493859U
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Abstract
The utility model provides a multi-channel switching device and a sample testing device, wherein the multi-channel switching device comprises: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends; the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation; the measuring end is connected with the testing instrument, each sample access end is connected with one group of samples, and the samples connected with the testing instrument are switched through the switch. According to the utility model, different control switches in the change-over switch are connected with different sample access ends, and the samples connected with the testing instrument are changed over by the change-over switch, so that different samples can be connected without destroying the testing environment under the condition that the testing instrument is limited, the waste of energy is reduced, the labor cost is reduced, and the testing efficiency is improved.
Description
Technical Field
The utility model relates to the field of product testing device design, in particular to a multi-channel conversion device and a sample testing device.
Background
In the production and manufacturing process of products, in order to ensure the conformity and consistency of the products, the routine sample extraction and test are indispensable links, the month and the month are accumulated, and the annual test belongs to time-consuming and labor-consuming work.
When a sample is tested according to the requirements of test standards, the performance of the sample under different environments (temperature, humidity, pressure and the like) needs to be detected, namely, the control equipment creates the environment and connects the sample with a testing instrument. In order to ensure the accuracy of the data, a plurality of different samples need to be measured, but the cost is limited, only one testing instrument is used, and only one set of samples can be connected. Therefore, it is necessary to communicate the environment with the external environment after the test to connect a new sample to the testing instrument. This results in repeated creation of test environment, wasted energy, high labor cost, and low test efficiency.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the multi-channel conversion device and the sample testing device, different control switches in the change-over switch are connected with different sample access ends, and the samples connected with the testing instrument are switched through the change-over switch, so that different samples can be connected without destroying the testing environment under the condition that the testing instrument is limited, the waste of energy is reduced, the labor cost is reduced, and the testing efficiency is improved.
In order to solve the above problems, the present invention adopts a technical solution as follows: a multi-channel switching device, the multi-channel switching device comprising: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends; the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation; the measuring end is connected with a testing instrument, each sample access end is connected with a group of samples, and the samples connected with the testing instrument are switched through the switch.
Furthermore, the multichannel conversion device also comprises a shell, wherein the interfaces of the control end and the measuring end of the change-over switch are arranged on one side of the shell, and the access port of the sample access end is arranged on the other end of the shell opposite to the control end.
Further, the access port is an insulated BNC connector.
Further, the change-over switch is a knob switch.
Further, the number of sample access is 10 groups, change over switch includes 10 control switch, and every control switch is connected with a set of sample access.
Based on the same inventive concept, the present invention also provides a sample testing device, comprising: sample test case, multichannel conversion equipment and test instrument, multichannel conversion equipment respectively with sample test case, test instrument are connected, the multiunit sample has been placed in the sample test case, through the sample test case does the sample provides test environment, test instrument passes through multichannel conversion equipment detects the sample, multichannel conversion equipment includes: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends; the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation; the measuring end is connected with a testing instrument, each sample access end is connected with a group of samples, and the samples connected with the testing instrument are switched through the switch.
Furthermore, the multichannel conversion device also comprises a shell, wherein the interfaces of the control end and the measuring end of the change-over switch are arranged on one side of the shell, and the access port of the sample access end is arranged on the other end of the shell opposite to the control end.
Further, the access port is an insulated BNC connector.
Further, the change-over switch is a knob switch.
Further, the number of sample access is 10 groups, change over switch includes 10 control switch, and every control switch is connected with a set of sample access.
Compared with the prior art, the utility model has the beneficial effects that: different control switches are connected with different sample access ends in the change-over switch, samples connected with the testing instrument are switched through the change-over switch, different samples can be connected without destroying the testing environment under the limited condition of the testing instrument, the waste of energy is reduced, the labor cost is reduced, and the testing efficiency is improved.
Drawings
FIG. 1 is a block diagram of one embodiment of a multi-channel switching device of the present invention;
FIG. 2 is a schematic circuit diagram of an embodiment of a multi-channel switching device of the present invention;
FIG. 3 is a block diagram of an exemplary testing device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Referring to fig. 1-2, fig. 1 is a structural diagram of a multi-channel switching device according to an embodiment of the utility model; fig. 2 is a schematic circuit diagram of an embodiment of the multi-channel switching device of the present invention, which is described in detail with reference to fig. 1-2.
In this embodiment, the multichannel conversion apparatus includes: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends; the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation; the measuring end is connected with the testing instrument, each sample access end is connected with one group of samples, and the samples connected with the testing instrument are switched through the switch.
In this embodiment, the number of the control switches is the same as the number of the sample access terminals, and each control switch controls the connection of one sample access terminal and the measurement terminal to form a measurement channel.
In this embodiment, the control switch is a rotary switch, each gear of the rotary switch is a control switch, and the turning-on and turning-off of different control switches are realized through the gear of the rotary switch.
In this embodiment, the sample to be tested may be a capacitor, a resistor, an inductor, or other products to be tested, wherein the testing environment of the sample may be at least one of a temperature environment, a humidity environment, a pressure environment, and other testing environments. The following description will take the test environment as the temperature environment and the sample as the ceramic capacitor as an example.
In this embodiment, a plurality of sets of samples are disposed in the high temperature testing chamber, and each set of samples is connected to one sample access terminal through a conducting wire.
In this embodiment, the multi-channel switching device further includes a housing, the interfaces of the control end and the measurement end of the switch are disposed on one side of the housing, and the access port of the sample access end is disposed on the other end of the housing opposite to the control end. The change-over switch is a knob switch, and a knob of the knob switch and an interface of the measuring end are arranged on the same side of the shell.
In this embodiment, the device for placing the sample is a high temperature test chamber, and different temperatures are provided by the high temperature test chamber, and in order to prevent the wires from being damaged, the wires of the multi-channel switching device for connecting the sample and the wires for connecting the test instrument may be high temperature shielding wires.
In a specific embodiment, the sample is a ceramic capacitor, the control switch comprises two sub-control switches, the measuring end comprises two interfaces, one end of each sub-control switch is connected with one end of the ceramic capacitor, and the other end of each sub-control switch is connected with one interface of the measuring end.
In this embodiment, the housing may be a metal structure, and a plurality of strip-shaped ventilation holes arranged side by side are further disposed on two sides of the housing where the access port and the switch are not disposed.
In this embodiment, in order to improve the insulation and stability of the device, insulating rubber is cut into both sides of the bottom of the housing, protrudes out of the bottom, and extends to the top of the housing along both sides where the vent holes are provided.
In one particular embodiment, the housing is an embedded aluminum alloy composite sleeve.
In this embodiment, the access port and the port of the measurement port are provided on the housing in the form of jacks.
In a specific embodiment, the access port is an insulated BNC connector.
In a specific embodiment, the number of sample access terminals is 10, and the switch comprises 10 control switches, each control switch being connected to a group of sample access terminals. And for the convenience of identification, corresponding characters and numbers are arranged at the positions of the change-over switch, the measuring end and the sample access end on the shell.
Please refer to table one, table one is a control switch closing table for the switch under different temperatures
Meter I, control switch closing meter of change-over switch under different temperature
Each control switch in the table is provided with two sub-control switches, contacts at two ends of each sub-control switch are represented by different numbers, and the horizontal rows represent the temperature of the environment where the sample is located. X represents the control switch closed. It can be seen from the table that the detection of different samples is realized by using the switching function of the switch.
In other embodiments, the number of the sample access ends and the number of the change-over switches may also be 8, 9, 11, or other numbers, and only different samples need to be controlled to be connected with the test instrument in turn.
In this embodiment, the change-over switch adopts the silver alloy electric shock switch, utilizes this kind of switch resistivity low, the oxidation resistance is good, the difficult characteristics of ageing, has promoted the performance of multichannel conversion equipment, has improved the accuracy of test result.
Has the advantages that: according to the multi-channel conversion device, different control switches in the change-over switch are connected with different sample access ends, and the samples connected with the testing instrument are switched through the change-over switch, so that different samples can be connected without destroying the testing environment under the condition that the testing instrument is limited, the waste of energy is reduced, the labor cost is reduced, and the testing efficiency is improved.
Based on the same inventive concept, the present invention further provides a sample testing device, please refer to fig. 3, fig. 3 is a structural diagram of an embodiment of the sample testing device of the present invention, and the sample testing device of the present invention is described with reference to fig. 3.
In this embodiment, the sample testing device includes: sample test case, multichannel conversion equipment and test instrument, multichannel conversion equipment are connected with sample test case, test instrument respectively, have placed the multiunit sample in the sample test case, provide test environment for the sample through the sample test case, and test instrument passes through multichannel conversion equipment and detects the sample, and multichannel conversion equipment includes: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends; the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation; the measuring end is connected with the testing instrument, each sample access end is connected with one group of samples, and the samples connected with the testing instrument are switched through the switch.
In this embodiment, the number of the control switches is the same as the number of the sample access terminals, and each control switch controls the connection of one sample access terminal and the measurement terminal to form a measurement channel.
In this embodiment, the control switch is a rotary switch, each gear of the rotary switch is a control switch, and the turning-on and turning-off of different control switches are realized through the gear of the rotary switch.
In this embodiment, the sample to be tested may be a capacitor, a resistor, an inductor, or other products to be tested, wherein the testing environment of the sample may be at least one of a temperature environment, a humidity environment, a pressure environment, and other testing environments. The following description will take the test environment as the temperature environment and the sample as the ceramic capacitor as an example.
In this embodiment, a plurality of sets of samples are disposed in the high temperature testing chamber, and each set of samples is connected to one sample access terminal through a conducting wire.
In this embodiment, the multi-channel switching device further includes a housing, the interfaces of the control end and the measurement end of the switch are disposed on one side of the housing, and the access port of the sample access end is disposed on the other end of the housing opposite to the control end. The change-over switch is a knob switch, and a knob of the knob switch and an interface of the measuring end are arranged on the same side of the shell.
In this embodiment, the device for placing the sample is a high temperature test chamber, and different temperatures are provided by the high temperature test chamber, and in order to prevent the wires from being damaged, the wires of the multi-channel switching device for connecting the sample and the wires for connecting the test instrument may be high temperature shielding wires.
In a specific embodiment, the sample is a ceramic capacitor, the control switch comprises two sub-control switches, the measuring end comprises two interfaces, one end of each sub-control switch is connected with one end of the ceramic capacitor, and the other end of each sub-control switch is connected with one interface of the measuring end.
In this embodiment, the housing may be a metal structure, and a plurality of strip-shaped ventilation holes arranged side by side are further disposed on two sides of the housing where the access port and the switch are not disposed.
In this embodiment, in order to improve the insulation and stability of the device, insulating rubber is cut into both sides of the bottom of the housing, protrudes out of the bottom, and extends to the top of the housing along both sides where the vent holes are provided.
In one particular embodiment, the housing is an embedded aluminum alloy composite sleeve.
In this embodiment, the access port and the port of the measurement port are provided on the housing in the form of jacks.
In a specific embodiment, the access port is an insulated BNC connector.
In a specific embodiment, the number of sample access terminals is 10, and the switch comprises 10 control switches, each control switch being connected to a group of sample access terminals. And for the convenience of identification, corresponding characters and numbers are arranged at the positions of the change-over switch, the measuring end and the sample access end on the shell.
Please refer to table two, which is a table showing the closing of the control switch of the switch at different temperatures
Meter II, control switch closing meter of change-over switch under different temperature
Each control switch in the table is provided with two sub-control switches, contacts at two ends of each sub-control switch are represented by different numbers, and the horizontal rows represent the temperature of the environment where the sample is located. X represents the control switch closed.
It can be seen from the table that the detection of different samples is realized by using the switching function of the switch.
In other embodiments, the number of the sample access ends and the number of the change-over switches may also be 8, 9, 11, or other numbers, and only different samples need to be controlled to be connected with the test instrument in turn.
In this embodiment, the change-over switch adopts the silver alloy electric shock switch, utilizes this kind of switch resistivity low, the oxidation resistance is good, the difficult characteristics of ageing, has promoted the performance of multichannel conversion equipment, has improved the accuracy of test result.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A multi-channel switching device, comprising: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends;
the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation;
the measuring end is connected with a testing instrument, each sample access end is connected with a group of samples, and the samples connected with the testing instrument are switched through the switch.
2. The multi-channel switching device of claim 1, further comprising a housing, wherein the control terminal of the switch and the interface of the measurement terminal are disposed on one side of the housing, and the access port of the sample access terminal is disposed on the other end of the housing opposite to the control terminal.
3. The multi-channel switching device of claim 2, wherein the access port is an insulated BNC connector.
4. The multi-channel switching device of claim 1, wherein the switch is a rotary switch.
5. A multi-channel switching device according to claim 4, wherein the number of sample access terminals is 10 groups, and the diverter switch comprises 10 control switches, each control switch being connected to a group of sample access terminals.
6. A sample testing device, comprising: sample test case, multichannel conversion equipment and test instrument, multichannel conversion equipment respectively with sample test case, test instrument are connected, the multiunit sample has been placed in the sample test case, through the sample test case does the sample provides test environment, test instrument passes through multichannel conversion equipment detects the sample, multichannel conversion equipment includes: the device comprises a measuring end, a selector switch and a plurality of groups of sample access ends, wherein two ends of the selector switch are respectively connected with the measuring end and the sample access ends;
the change-over switch comprises a plurality of control switches, one ends of different control switches are connected with different sample access ends, the other ends of different control switches are connected with the measuring end, and the change-over switch controls the different control switches to be closed through switching operation;
the measuring end is connected with a testing instrument, each sample access end is connected with a group of samples, and the samples connected with the testing instrument are switched through the switch.
7. The sample testing device of claim 6, wherein the multi-channel switching device further comprises a housing, the control end and the interface of the measurement end of the switch are disposed on one side of the housing, and the access port of the sample access end is disposed on the other end of the housing opposite to the control end.
8. The sample testing device of claim 7, wherein said access port is an insulated BNC connector.
9. The sample testing device of claim 8, wherein the switch is a rotary switch.
10. The sample testing device of claim 8, wherein the number of sample access terminals is 10 groups, and the switch comprises 10 control switches, each control switch connected to a group of sample access terminals.
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| CN202023254856.1U CN215493859U (en) | 2020-12-29 | 2020-12-29 | Multichannel conversion device and sample testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214536A (en) * | 2023-09-06 | 2023-12-12 | 河南工业大学 | Testing device and testing method for multipath parallel impedance suitable for high temperature condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117214536A (en) * | 2023-09-06 | 2023-12-12 | 河南工业大学 | Testing device and testing method for multipath parallel impedance suitable for high temperature condition |
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