PLC cabinet non-insurance type terminal integrated test tool shell, tool, non-insurance test plug and non-insurance PLC test cabinet

Abstract

The utility model relates to the technical field of PLC testing, in particular to a PLC cabinet non-insurance type terminal integrated testing tool shell, a tool, a non-insurance testing plug and a non-insurance PLC testing cabinet. In order to solve the technical problems in the prior art that the test cost is increased, the test period is prolonged, and even the overall progress of a project is influenced due to low efficiency and high error rate in the existing PLC test work, the technical scheme provided by the utility model comprises a shell, the shell is used for accommodating a non-insurance terminal, the non-insurance terminal comprises a base and a contact, and the base is provided with a through hole. The base is of a cuboid structure, and a through hole is formed in the side wall, with the smallest surface area, of the cuboid structure. The number of the non-insurance terminals is at least two, and contacts extend out of the shell. Two opposite outer side walls of the shell are respectively provided with a fixing groove, the fixing grooves are used for fixing a back clamp, and the back clamp is provided with a fixing bolt which is used for being detachably connected with the fixing grooves. The method is suitable for being applied to PLC testing work.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of PLC testing, and particularly relates to a non-fused terminal integrated test tool for a PLC cabinet. BACKGROUND

[0002] In modern industrial automation systems, PLCs (Programmable Logic Controllers) are widely used in various automation control and monitoring tasks, and are the core components to ensure system stability and efficiency. Therefore, the testing of PLCs is crucial for the normal operation of the entire industrial automation system. The accuracy and efficiency of testing directly affect the reliability, safety and operating cost of the system. However, the existing PLC testing process still has many limitations and technical problems, which need to be improved.

[0003] At present, PLC testing mainly relies on manual operation, and the process is complex and prone to errors. First, the technician needs to manually set the test program according to the specific configuration of the PLC cabinet to be tested. This process usually requires a deep understanding of the specifications, functions and interfaces of each PLC module to ensure that the test program can cover all possible working scenarios. However, due to the wide variety of PLC modules and complex configurations, the technician not only needs to spend a lot of time, but also is prone to errors in setting the test program due to oversight, resulting in incomplete coverage or incorrect settings.

[0004] After the test program is set, the tester also needs to manually connect the test program with each PLC module according to the requirements of the program. This process is extremely challenging due to its complexity, resulting in a low fault tolerance rate. Any mistake can lead to connection errors or omissions, affecting the accuracy of the test results. This manual connection process is particularly time-consuming in actual operation and usually requires at least two technicians to work together, increasing labor costs and operation time. At the same time, due to the large number of manual operations in the testing process, any non-standard operation can cause system failure, further reducing the reliability of the test.

[0005] In addition, with the increasing scale and complexity of industrial automation systems, traditional manual PLC testing methods have been unable to meet the growing demand. In the testing process of large-scale PLC systems, the low efficiency and high error rate of manual operation are more prominent, leading to increased testing costs, prolonged testing periods, and even affecting the overall progress of the project.

[0006] In summary, these defects of the prior art seriously affect the efficiency and reliability of PLC testing, especially in the industrial scene with increasing automation, these problems are particularly prominent. Therefore, there is an urgent need for a solution that can simplify the PLC testing process, improve testing accuracy and efficiency, reduce the dependence on manual operation, reduce the risk of errors, and save manpower and time costs, thereby improving the overall testing performance and ensuring the stability and efficiency of the industrial automation system. Utility model content

[0007] To solve the technical problems in the prior art that the existing PLC testing work mainly relies on manual operation, which is low in efficiency, high in error rate, leads to increased testing cost, prolonged testing period, and even affects the overall progress of the project, the technical solution provided by the utility model is:

[0008] A non-fused terminal integrated test tool shell for a PLC cabinet, the shell is used to accommodate

[0009] a non-fused terminal,

[0010] The non-fused terminal includes a base and a contact,

[0011] The base is a cuboid structure, and a through hole is provided on a side wall with the smallest surface area of the cuboid structure,

[0012] The contact is a cylindrical structure and is telescopically arranged in the through hole;

[0013] The non-fused terminal has at least two, and the contact protrudes from the shell;

[0014] Each of the two opposite outer side walls of the shell is provided with a fixing groove, and the fixing groove is used to fix

[0015] a back clip,

[0016] The back clip is a cuboid structure, and a protrusion is provided near one end of the non-fused terminal, and the protrusion faces the shell;

[0017] The back clip is provided with a fixing bolt for detachable connection with the fixing groove.

[0018] Further, a preferred embodiment is provided, wherein the contact is connected to the base by a spring.

[0019] Further, a preferred embodiment is provided, wherein the axis of the spring coincides with the axis of the contact.

[0020] Further, a preferred embodiment is provided, wherein a PLC cabinet non-fused terminal integrated test tool is provided, and the test terminal includes the PLC cabinet non-fused terminal integrated test tool shell and

[0021] Non-fuse terminals on terminal bracket.

[0022] Furthermore, a preferred embodiment is provided, wherein the at least two non-fuse terminals are evenly arranged on the terminal support.

[0023] Furthermore, a preferred embodiment is provided, wherein the terminal bracket is a rectangular parallelepiped structure.

[0024] Furthermore, a preferred embodiment is provided in which a hole is provided on the side wall of the terminal support, a protrusion is provided on the side wall of the non-safety terminal, and the non-safety terminal and the terminal support are connected by interference fit of the hole and the protrusion.

[0025] Furthermore, a preferred embodiment is provided, in which an edge of the rectangular parallelepiped structure close to the contact and away from the terminal support is chamfered.

[0026] The non-insurance test plug comprises the test terminal and an adapter, wherein the adapter is connected to the at least two non-insurance terminals respectively through wires, and the wires penetrate from one end of the through hole away from the contact and are connected to the contact.

[0027] A non-insurance PLC test cabinet is connected to the PLC under test through the non-insurance test plug.

[0028] Compared with the prior art, the technical solution provided by the present invention is beneficial in that:

[0029] The utility model provides an integrated testing tool for non-fuse terminals of a PLC cabinet. There are fixing grooves on both sides of the shell, and the back clip can be flexibly fixed on any side of the shell, avoiding the problem of being unable to use the back clip for clamping due to the arrangement direction of the PLC plug interface.

[0030] This utility model provides an integrated test fixture for non-fuse terminals in PLC cabinets. It quickly connects to the terminal block under test, eliminating the need for manual securing. Its detachable design allows for simultaneous measurement of eight channels (16 terminals). Each independent non-fuse terminal can be individually replaced or removed, and each terminal can be individually wired.

[0031] This utility model provides an integrated test fixture for non-fuse terminals in a PLC cabinet. The contacts are configured as retractable cylindrical structures that extend through through-holes. This design improves the operability and flexibility of the test terminals. During testing, users can easily extend or retract the contacts to adapt to different testing scenarios. This structural design provides more flexible connections while reducing the risk of accidental contact or damage.

[0032] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and the cuboid structure of base and terminal support makes terminal support more stable as a whole.This stable geometric structure provides better support performance, ensures that terminal will not be easily displaced or loose during use, improves the reliability of the device.

[0033] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and the hole and the protruding interference fit connection non-insurance terminal and terminal support, not only increase the firmness of connection, also simplify assembly process.This mechanical structure cooperation mode provides high-precision fixing effect, avoids potential problems caused by welding or bonding, for example, unstable connection or material deformation.

[0034] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and chamfer design on the edge close to contact can reduce friction and wear during operation, especially when plugging, avoid sharp edge to the potential harm of equipment or user.This chamfer design not only improves use safety, also prolongs the service life of terminal.

[0035] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and contact is connected with base by spring design, which enhances the elasticity and recoverability of terminal.Spring can provide stable elastic support for contact, ensuring that contact can be quickly reset during multiple plugging or testing, maintaining good contact state.

[0036] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and spring and contact axis coincide design ensures the uniformity and stability of contact stress, further improves the durability and contact performance of terminal.In use, the force of spring will not deviate or be uneven, thereby improving the response speed and accuracy of contact.

[0037] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and the detachable back clamp design improves the installation and maintenance convenience of equipment.Users can conveniently detach or replace back clamp according to needs, adapt to different application scenarios.This design effectively improves the versatility and adaptability of terminal, suitable for multiple operating environments.

[0038] The utility model provides a kind of PLC cabinet non-insurance type terminal integrated test tool, and back clamp is connected with terminal support through cover plate, and the connection mode is detachable, and this structure design makes the assembly and disassembly of equipment more convenient, simultaneously enhances the integrity and firmness of structure.When needing to replace component, users can easily operate, reduces maintenance cost.

[0039] The utility model provides a kind of PLC cabinet non-fuse terminal integrated test tool, test terminal is connected with adapter through wire, and it is passed from through-hole, this design makes the wiring of wire more reasonable, reduces interference and loss in electrical connection.Wire enters from the end of through-hole away from contact, which helps to avoid wire stress bending or damage.

[0040] The utility model provides a kind of PLC cabinet non-fuse terminal integrated test tool, the design of non-fuse test plug being connected with PLC through test terminal and adapter provides efficient, stable signal transmission path.In the testing process, the integrity and accuracy of test signal can be ensured, and the error rate is reduced.This design has advantages in existing PLC test scheme.

[0041] The utility model provides a kind of PLC cabinet non-fuse terminal integrated test tool, suitable for application in PLC test work. DRAWINGS

[0042] Figure 1 It is a kind of PLC cabinet non-fuse terminal integrated test tool's perspective schematic view;

[0043] Figure 2 It is a kind of PLC cabinet non-fuse terminal integrated test tool's side view;

[0044] Figure 3 It is a kind of PLC cabinet non-fuse terminal integrated test tool's plan view;

[0045] Figure 4 It is a kind of PLC cabinet non-fuse terminal integrated test tool's bottom view;

[0046] Figure 5 It is a kind of PLC cabinet non-fuse terminal integrated test tool's rear view;

[0047] Figure 6 It is a kind of PLC cabinet non-fuse terminal integrated test tool's explosion view;

[0048] Figure 7 It is the perspective schematic view of back clamp.

[0049] Wherein, 1 indicates shell, 2 indicates fixed groove, 3 indicates cable clamp, 4 indicates spring, 5 indicates contact, 6 indicates non-fuse terminal. DETAILED DESCRIPTION

[0050] To make the advantages and beneficial aspects of the technical solutions provided by the utility model more clear, the technical solutions provided by the utility model are further described in detail in conjunction with the drawings, specifically:

[0051] Embodiment 1: This embodiment provides a PLC cabinet non-fuse terminal integrated test tool housing 1, the housing 1 is used to accommodate

[0052] Non-insurance terminal 6,

[0053] The non-insurance terminal 6 includes a base and a contact 5.

[0054] The base is a rectangular parallelepiped structure, and a through hole is provided on a side wall of the rectangular parallelepiped structure with the smallest surface area.

[0055] The contact 5 is a cylindrical structure and is telescopically arranged in the through hole;

[0056] There are at least two non-fuse terminals 6, and the contacts 5 protrude from the housing 1;

[0057] The two opposite outer side walls of the housing 1 are each provided with a fixing groove 2, which is used to fix

[0058] Back clip,

[0059] The back clip is a rectangular parallelepiped structure, and a protrusion is provided at one end close to the non-fuse terminal 6, and the protrusion faces the housing 1;

[0060] The back clip is provided with a fixing bolt for detachably connecting with the fixing slot 2 .

[0061] Embodiment 2: This embodiment further limits the PLC cabinet non-fuse terminal integrated test tool housing 1 provided in Embodiment 1, and the contact 5 is connected to the base via a spring 4.

[0062] Embodiment 3: This embodiment further limits the PLC cabinet non-fuse terminal integrated test tool housing 1 provided in Embodiment 1, and the axis of the spring 4 coincides with the axis of the contact 5 .

[0063] Implementation 4: This implementation provides a PLC cabinet non-insurance terminal integrated test fixture, the test terminal includes a PLC cabinet non-insurance terminal integrated test fixture housing 1 provided in Implementation 1, and a

[0064] Non-fuse terminal 6 on the terminal bracket.

[0065] Embodiment 5: This embodiment further limits the integrated testing tool for non-fuse terminals of a PLC cabinet provided in embodiment 4, wherein the at least two non-fuse terminals 6 are evenly arranged on the terminal bracket.

[0066] Embodiment six, the embodiment is provided in the fourth embodiment of a PLC cabinet non-insurance terminal integrated test tool is further limited, the terminal support is a cuboid structure.

[0067] Embodiment seven, the embodiment is provided in the fourth embodiment of a PLC cabinet non-insurance terminal integrated test tool is further limited, the terminal support side wall is provided with a hole, the non-insurance terminal 6 side wall is provided with a protrusion, the non-insurance terminal 6 and the terminal support are connected through the interference fit of the hole and the protrusion.

[0068] Embodiment eight, the embodiment is provided in the fourth embodiment of a PLC cabinet non-insurance terminal integrated test tool is further limited, on the cuboid structure, close to the contact 5 and away from the edge of the terminal support is chamfered.

[0069] Embodiment nine, the embodiment provides a non-insurance test plug, including the test terminal and adapter provided in the fourth embodiment, the adapter is connected with the at least two non-insurance terminals 6 through the wire, the wire is inserted from the end of the through hole away from the contact 5 and connected to the contact 5.

[0070] Embodiment ten, the embodiment provides a non-insurance PLC test machine cabinet, the cabinet is connected with the measured PLC through the non-insurance test plug provided in the ninth embodiment.

[0071] Embodiment eleven, in combination Figures 1-7 The embodiment is described in detail by specific examples, and the technical solutions provided above are described in detail.

[0072] The test terminal is fixed on the measured terminal through the reaction force of the spring 4 inserted into the corresponding terminal to be tested and the pulling force of the back clamp and the measured terminal. The contact 5 is contacted with the measured terminal (spring 4 is pressed), and the measured terminal and the test terminal are conducted.

[0073] 1. A method for implementing a PLC cabinet non-insurance terminal integrated test tool

[0074] 1.1 Material selection

[0075] The base and the terminal support can be selected from materials with excellent insulation performance, such as polyimide, polyethylene terephthalate (PET) or epoxy resin composite material, to ensure electrical isolation and avoid short circuit. The contact 5 should be made of metal materials with high conductivity and corrosion resistance, such as copper alloy or silver-plated copper, to ensure the stability of electrical contact and oxidation resistance. The spring 4 can be made of materials with good elasticity and fatigue resistance, such as stainless steel or nickel alloy.

[0076] 1.2 Structure design of non-insurance terminal 6

[0077] The base of each non-insurance terminal 6 is designed as a cuboid structure, and a through hole is formed on the side with the smallest surface area of the base to accommodate the extension and retraction of the contact 5. The contact 5 is designed as a cylindrical structure, with its axis parallel to the through hole, and can move in and out of the through hole. The contact 5 is provided with a restoring force by the spring 4 inside the base, so that it can return to its original position after being pushed in, ensuring reliable contact and convenient plug-in and plug-out operation. To ensure the firmness of the connection between the contact 5 and the base, threads can be designed at the bottom end of the contact 5 and screwed into the corresponding holes in the base, or fixed through a buckle structure.

[0078] 1.3 Connection of terminal support and non-insurance terminal 6

[0079] The terminal support is designed as a cuboid structure, and the side wall is provided with a plurality of holes. The side wall of the non-insurance terminal 6 is provided with corresponding protrusions, which are connected to the terminal support through interference fit. This design ensures the stability of the terminal during testing, avoiding loosening or deviation. At the same time, the interference fit also facilitates the disassembly and replacement of the non-insurance terminal 6, reducing maintenance costs.

[0080] 1.4 Reset mechanism of contact 5

[0081] The contact 5 is connected to the base through the spring 4, and the axis of the spring 4 coincides with the axis of the contact 5, ensuring that when the spring 4 is compressed, the contact 5 can extend and retract along the axis of the through hole without deviation. The spring constant of the spring 4 needs to be designed according to the contact requirements and test frequency of the contact 5, in order to avoid fatigue or poor contact of the spring 4 after long-term use.

[0082] 1.5 Chamfer design

[0083] In order to improve the durability of the structure, the edges of the base near the contact 5 and away from the terminal support are chamfered. Chamfering not only reduces wear and tear over time, but also prevents mechanical damage caused by operator error or misplug, thereby prolonging the service life of the test terminal.

[0084] 2. Implementation method of back clip

[0085] 2.1 Back clip structure design

[0086] The back clip is designed as a cuboid structure and can be detachably fixed to the side wall of the shell 1 through a fixing bolt.

[0087] Because the order of the PLC interface is fixed, during the assembly of the PLC, the PLC interface may be in reverse order or in normal order. Therefore, in this embodiment, the back clip can be flexibly adjusted on both sides of the shell 1, ensuring that the test terminal can be fixed with the back clip on the same side regardless of the direction of insertion, so as to realize the tensioning of the test terminal and the PLC.

[0088] The material of the back clip should be lightweight and strong, such as aluminum alloy or high-strength plastic, to ensure sufficient mechanical strength and durability.

[0089] 3. Implementation of non-fuse test plug

[0090] The design of the test plug is based on the aforementioned PLC cabinet non-fuse terminal integrated test fixture. The non-fuse terminal 6 is connected to the adapter via a wire, and a cable clamp is provided on the top of the housing 1 to secure the wire. The specific implementation steps are as follows:

[0091] The conductor is made of a cable material with good conductivity and heat resistance, such as tinned copper wire, and is covered with an insulating layer. One end of the conductor is inserted through the through-hole of the base and connected to the bottom of the contact 5 by welding or crimping to ensure stable conductivity and reliable contact.

[0092] The other end of the wire is connected to the adapter. The structural design of the adapter should match the interface of the device under test to ensure a fast and stable electrical connection.

[0093] To further enhance the tensile strength of the plug, an anti-pullout design should be provided at the outlet of the through-hole for the wire, such as a wire fixing clip or a reinforced sleeve, to prevent the wire from accidentally falling off during use.

[0094] 4. Implementation method of PLC test cabinet

[0095] The PLC test cabinet is connected to the PLC device through the non-fuse test plug mentioned above. Multiple test sockets can be designed inside the cabinet to accommodate various types of PLC devices. The specific implementation methods of the cabinet include:

[0096] Socket Design: The socket and test plug are designed to provide a stable electrical connection after the plug is inserted. The conductive parts inside the socket can be made of copper alloy or other highly conductive materials, and are equipped with a spring 4 structure to ensure reliable contact with the plug contacts 5.

[0097] Modular design: The cabinet features a modular design with removable components such as test sockets, power supply modules, and signal acquisition modules, facilitating maintenance and expansion. Test sockets can be flexibly configured to accommodate different types of PLC testing.

[0098] Cable management: Reasonable cable management channels are designed inside the cabinet to ensure that the wires are arranged neatly, avoiding signal interference and cable wear.

[0099] Ventilation and heat dissipation: An effective ventilation system is designed inside the cabinet to ensure that electronic equipment maintains a suitable operating temperature during long-term testing, avoiding equipment failure due to overheating.

[0100] 5. Safety and reliability design of test system

[0101] Overload protection: a PLC cabinet non-fuse terminal integrated test tool can prevent damage to the device caused by accidental short circuit or overload by designing current overload protection device. Thermistor or fuse can be used as overload protection device.

[0102] Anti-misoperation design: to prevent misoperation, clear insertion direction and operation prompt are marked on the cabinet and test plug to ensure that the operator uses the equipment correctly.

[0103] Anti-interference design: the wire and connecting device should have good anti-electromagnetic interference ability, a shielding layer can be coated outside the wire, or a filter circuit is used to avoid inaccurate test results caused by external interference during the test.

[0104] The above describes the technical solutions provided by the utility model in further detail through several specific embodiments, in order to highlight the advantages and benefits of the technical solutions provided by the utility model, but the above several specific embodiments are not used as the limitation of the utility model, any reasonable modification and improvement of the utility model, combination and equivalent replacement of the embodiments, etc. based on the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A PLC cabinet non-fuse terminal integrated test tool housing, characterized in that: The housing is used to accommodate Non-fuse terminals, The non-insurance terminal includes a base and a contact, The base is a rectangular parallelepiped structure, and a through hole is provided on a side wall of the rectangular parallelepiped structure with the smallest surface area. The contact is a cylindrical structure and is telescopically arranged in the through hole; There are at least two non-insurance terminals, and contacts protrude from the housing; The two opposite outer side walls of the housing are each provided with a fixing groove, which is used to fix Back clip, The back clip is a rectangular parallelepiped structure, and a protrusion is provided at one end close to the non-insurance terminal, and the protrusion faces the housing; The back clip is provided with a fixing bolt for detachably connecting with the fixing slot.

2. A PLC cabinet non-fuse terminal integrated test tool housing according to claim 1, characterized in that: The contact is connected to the base through a spring.

3. A PLC cabinet non-fuse terminal integrated test tool housing according to claim 2, characterized in that: The axis of the spring coincides with the axis of the contact.

4. A PLC cabinet non-fuse terminal integrated test fixture, characterized in that: The test fixture comprises a PLC cabinet non-insurance terminal integrated test fixture shell as claimed in claim 1, and a Non-fuse terminals on terminal bracket.

5. The PLC cabinet non-fuse terminal integrated test fixture according to claim 4, characterized in that: The at least two non-fuse terminals are evenly arranged on the terminal support.

6. The PLC cabinet non-fuse terminal integrated test fixture according to claim 4, characterized in that: The terminal bracket is a rectangular parallelepiped structure.

7. The PLC cabinet non-fuse terminal integrated test fixture according to claim 4, characterized in that: The side wall of the terminal support is provided with a hole, the side wall of the non-safety terminal is provided with a protrusion, and the non-safety terminal and the terminal support are connected through interference fit of the hole and the protrusion.

8. The PLC cabinet non-fuse terminal integrated test fixture according to claim 4, characterized in that: On the rectangular parallelepiped structure, an edge close to the contact and away from the terminal support is chamfered.

9. Non-insurance test plug, characterized in that: It includes an integrated test fixture and adapter for non-safety terminals of a PLC cabinet as described in claim 4, wherein the adapter is connected to the at least two non-safety terminals respectively through wires, and the wires are inserted from one end of the through hole away from the contacts and connected to the contacts.

10. Non-insurance PLC test cabinet, characterized in that, The cabinet is connected to the PLC under test via the non-fuse test plug according to claim 9.

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