阅读说明：本技术 一种测试线及包含其的测试线套件 (Test wire and test wire kit comprising same ) 是由 李均华 刘景平 彭军 刘安林 韩富仁 潘隆轩 何欧 龚小敏 王欠欠 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种测试线,包括：第一接头和第二接头,所述第一接头与所述第二接头通过导线电连接；所述第一接头和/或所述第二接头为磁性接头,所述磁性接头包括连接端头和磁性连接件,所述磁性连接件通过所述连接端头与所述导线固定连接。本发明提供了一种新型的测试线,通过设置磁性接头减少一半拆线工作量或不拆线、接线不用工具、不断开信号回路进行在线测试,从而使工作更方便、效率更高。(The invention discloses a test line, comprising: the first joint and the second joint are electrically connected through a lead; the first joint and/or the second joint are magnetic joints, each magnetic joint comprises a connecting end and a magnetic connecting piece, and the magnetic connecting pieces are fixedly connected with the wires through the connecting ends. The invention provides a novel test wire, which reduces half of the work load of wire disconnection or carries out online test without disconnecting, connecting wires without tools and disconnecting a signal loop by arranging a magnetic joint, thereby ensuring more convenient work and higher efficiency.)

1. A test line, comprising:

a first joint;

the first joint is electrically connected with the second joint through a lead;

the first joint and/or the second joint are magnetic joints, each magnetic joint comprises a connecting end and a magnetic connecting piece, and the magnetic connecting pieces are fixedly connected with the wires through the connecting ends.

2. The test line according to claim 1, wherein the magnetic connector is a cylindrical neodymium magnet, the connection end is a tubular bare end, the cylindrical neodymium magnet is coaxially disposed in the tubular bare end, and the magnetic connector is electrically connected to the connection end.

3. A test line according to claim 2, wherein the length of the magnetic connector is greater than the depth of the connector tip.

4. A test wire according to claim 2, wherein if said first and second connectors are said magnetic connectors, the polarity of the outer end of the magnetic connector of said first connector is opposite to the polarity of the outer end of the magnetic connector of said second connector.

5. The test line of claim 3, wherein the magnetic connector further comprises a heat-shrinkable tube, and the heat-shrinkable tube is sleeved on and covers the connecting terminal.

6. The test wire of claim 2, wherein the tail end of the tubular bare end is fixedly connected to the lead.

7. A test line according to claim 1, 2, 3, 4 or 5, wherein the conductor is a multicore copper conductor.

8. A test line kit, comprising:

a test line according to any one of claims 1 to 6, the first end of the test line being electrically connected to a device under test;

the standard equipment is used for parameter measurement, and the second end of the test wire is electrically connected with the standard equipment;

the first joint of the test wire is a magnetic joint, and the second joint of the test wire is a banana joint.

9. The test line kit of claim 8, wherein the device under test comprises:

a terminal plate;

and the first joint is magnetically adsorbed with the terminal.

Technical Field

The invention relates to the field of detection, in particular to a test wire and a test wire kit comprising the same.

Background

One end of an existing test wire suite is a banana plug, and the other end of the existing test wire suite is connected with a tested object through an alligator clip type, a meter pen pointer type or a hook type clip. When the test wire kit is used for signal test, disconnection and connection are needed, a signal loop is disconnected, the work is complex, and the efficiency is low.

Disclosure of Invention

The invention aims to solve the technical problem that detection preparation work is complex, and aims to provide a test line and a test line kit comprising the same, so that the problem of low detection efficiency is solved.

The invention is realized by the following technical scheme:

a test line, comprising:

a first joint;

the first joint is electrically connected with the second joint through a lead;

the first joint and/or the second joint are magnetic joints, each magnetic joint comprises a connecting end and a magnetic connecting piece, and the magnetic connecting pieces are fixedly connected with the wires through the connecting ends.

Specifically, the magnetism connecting piece is the column neodymium magnet, it is the naked end of cast to connect the end, the coaxial setting of column neodymium magnet is in the naked end of cast, just the magnetism connecting piece with it is connected to connect the end electricity.

Specifically, the length of the magnetic connector is greater than the depth of the connecting end.

Preferably, if the first joint and the second joint are the magnetic joints, the polarity of the outer end of the magnetic connector of the first joint is opposite to the polarity of the outer end of the magnetic connector of the second joint.

Specifically, the magnetic joint further comprises a heat shrink tube, wherein the heat shrink tube is sleeved on the connecting end and covers the connecting end.

Specifically, the tail end of the tubular bare end is fixedly connected with the lead.

Preferably, the wire is a multicore copper wire.

A test line kit, comprising:

the test wire as above, a first end of the test wire is electrically connected to the device to be tested;

the standard equipment is used for parameter measurement, and the second end of the test wire is electrically connected with the standard equipment;

the first joint of the test wire is a magnetic joint, and the second joint of the test wire is a banana joint.

Specifically, the device under test includes:

a terminal plate;

and the first joint is magnetically adsorbed with the terminal.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the invention provides a novel test wire, which reduces half of the work load of wire disconnection or carries out online test without disconnecting, connecting wires without tools and disconnecting a signal loop by arranging a magnetic joint, thereby ensuring more convenient work and higher efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a test line according to the present invention.

Fig. 2 is a schematic view of the installation of a test line kit according to the present invention.

Reference numerals: 1-magnetic connecting piece, 2-connecting end, 3-heat shrinkable tube, 4-conducting wire, 5-banana connector, 6-terminal board, 7-terminal, 8-testing wire and 9-standard equipment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.

It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

A test wire 8 comprises a first joint and a second joint, wherein the first joint and the second joint are electrically connected through a lead 4;

when the test wire 8 is used, the two devices are electrically connected through the first connector and the second connector, so that signals, power and the like can be transmitted between the devices through the lead 4.

The first joint and/or the second joint are magnetic joints, each magnetic joint comprises a connecting end 2 and a magnetic connecting piece 1, and each magnetic connecting piece 1 is fixedly connected with the corresponding lead 4 through the corresponding connecting end 2.

The test wire 8 at the present stage needs to be connected between two devices through various plug wires 4 when in use, and needs to undergo operations such as disconnection, connection, disconnection of a signal circuit, and the like when in connection.

In the embodiment, the first joint and/or the second joint are/is arranged to be the magnetic joint, and the fixation is realized directly in the way of adsorption of the magnetic connecting piece 1, so that the operations of wire disconnecting and wire connecting can be reduced.

In addition, the present embodiment can have two embodiment modes, as follows:

the first joint and the second joint are magnetic joints, and two ends of the test line 8 can be connected between the devices in a direct adsorption mode.

The test line 8 can be conveniently switched and used among different devices.

And secondly, one of the first joint or the second joint adopts a magnetic joint, the other joint adopts a banana joint 5 or a direct connection mode, and the like, and generally, one end of the test wire 8 is in a normally connected state with one device, and the other end of the test wire 8 needs to be switched and connected among different devices.

The test line 8 conveniently fixed on one equipment switches and connects another plurality of different equipments.

Magnetic connector 1 is the cylindrical neodymium magnet, connects end 2 for the naked end of cast, and the coaxial setting of cylindrical neodymium magnet is in the naked end of cast, and magnetic connector 1 is connected with connecting end 2 electricity. The wires 4 are multicore copper wires 4.

Neodymium magnets are a good choice, but it is of course also possible to replace the magnetic connections 1 with samarium cobalt magnets, ferrite magnets, alnico magnets, iron-chromium-cobalt magnets, etc., depending on the situation.

In order to ensure that the connection between the connection end 2 and the magnetic connecting piece 1 is more stable, the magnetic joint further comprises a heat-shrinkable tube 3, the heat-shrinkable tube 3 is sleeved on the connection end 2 and covers the connection end 2, and the tail end of the tubular bare end is fixedly connected with the lead 4.

The heat shrinkable tube 3 is sleeved on the connecting end 2, and then the connecting end 2 and the connecting piece are fixedly connected in a heating mode.

The length of magnetic connector 1 is greater than the degree of depth of connecting end 2, sets up the outer end of magnetic connector 1 in attach fitting's outside, is convenient for carry out magnetic adsorption when, absorption that can be stable.

A specific embodiment is provided below for the various elements described above.

The magnetic connecting piece 1 is a phi 3 multiplied by 10 cylindrical neodymium magnet;

the connecting joint is a phi 3.5 tubular bare end, and red copper is plated with tin;

the heat shrinkable tube 3 is a phi 4 heat shrinkable tube 3.

If only the first connector adopts magnetic connection, then the second connector adopts 4mm banana plug.

The connection mode of each part of the test line 8 is as follows:

the connection mode of the columnar neodymium magnet and the tubular bare end is expanded and then soldered.

The connection mode of the tubular bare end and the lead 4 is tin soldering.

The connection mode of the tubular bare end and the banana joint 5 is soldering.

Example two

Normally, only one of the first joint or the second joint is provided as a magnetic joint, but it is also possible to select that both the first joint and the second joint are magnetic joints, and the polarity of the outer end of the magnetic connector 1 of the first joint is opposite to the polarity of the outer end of the magnetic connector 1 of the second joint.

The polarity of the outer ends of the first joint and the second joint is set to be opposite, so that when the test line 8 needs to be extended, the neodymium magnet NS grade attraction is directly utilized, and then the two test lines 8 are connected to form one test line 8 for use.

The test wire kit can be prolonged without tools, the work that the test wire 8 is short and the wire is stripped again and then connected is avoided, the work flow is reduced, and the work efficiency is improved.

EXAMPLE III

The embodiment provides a test line kit, including: a test line 8 and a standard device 9.

The test line 8 is a test line 8 mentioned in the first embodiment, and a first end of the test line 8 is electrically connected with the device to be tested;

the standard equipment 9 is used for measuring parameters, and the second end of the test line 8 is electrically connected with the standard equipment 9;

wherein, the first joint of test line 8 is magnetic joint, and the second joint of test line 8 is banana joint 5, and banana joint 5 is connected with standard equipment 9.

The device to be tested comprises a terminal board 6 and a terminal 7 which is arranged on the terminal board 6 and is communicated with an internal circuit of the device to be tested, and the first joint is magnetically adsorbed with the terminal 7.

When the novel test line kit is used, only one line on the terminal 7 of the terminal board 6 needs to be dismounted, the magnetic joint in the test line kit is directly attracted to the terminal 7 of the terminal board 6, the standard equipment 9 outputs 4-20 mA current signals through the test line 8, after the work is finished, the dismounting of one line is recovered, and the workload is that only one line is dismounted, one line is sucked and connected;

if the test wire kit in the embodiment is not used for transmitting a 4-20 mA current signal, the wire connection needs to be firstly disconnected twice, then the wire connection needs to be connected twice, then the wire connection needs to be disconnected twice, and then the wire connection needs to be recovered twice, wherein the wire connection needs to be disconnected four times and the wire connection needs to be connected four times. As can be seen from the comparison, by using the test line kit, the work flow is reduced, the workload is reduced, and the efficiency is greatly improved.

For example:

the AI module is subjected to performance test, firstly, the first incoming line or the second incoming line is removed, the magnetic joint of the test line kit is attracted on the terminal 7 of the terminal board 6, currents of 4mA, 8mA, 12mA, 16mA and 20mA are input according to a five-point method, the current signal transmission is correct, the HMI display of the DCS is correct,

the standard device 9 in this embodiment may be a multimeter, a signal generator, an intelligent handheld terminal, and the like.

Another environment for use of the present device is provided below:

now, taking an example that an intelligent handheld terminal (namely standard equipment 9) performs parameter setting and fault detection on intelligent equipment meeting HART protocol on site, by using the test line kit in the embodiment, the terminal 7 on the terminal board 6 is not disconnected for wiring, and the magnetic joint is directly attracted on the terminal 7, the intelligent handheld terminal directly performs parameter setting and fault detection on the intelligent equipment on site through the test line kit, and performs parameter setting and self-diagnosis detection on the intelligent instrument on site by using an intelligent manual operation terminal, wherein the parameter setting is correct, and the communication is normal.

The test wire kit in the embodiment is not used, and the wire is required to be disconnected twice first, the circuit is hooked by the hook-shaped clamp of the handheld intelligent terminal, and then the wire is connected twice, after the work is finished, the wire is disconnected twice, the wire is connected twice, and the wire is disconnected four times and connected four times. As can be seen from the comparison, the novel test line kit is used, the work flow is reduced, the workload is reduced, and the work is more convenient and efficient.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. It will be apparent to those skilled in the art that other variations or modifications may be made on the above invention and still be within the scope of the invention.