Wiring terminal with monitoring function

By introducing the design of thermistors in the terminal blocks, the problem of difficulty in monitoring the terminal block temperature is solved, real-time temperature monitoring is achieved, and the safe and stable operation of electrical equipment is ensured.

CN120668277APending Publication Date: 2025-09-19SHENZHEN CONNECTION ELECTRONIC CO LTD
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Patent Information

Application Number
CN202510790678.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-13
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

When power is applied to the terminal blocks, heat accumulates, causing the temperature to rise, making it difficult to perform real-time temperature monitoring and affecting the normal operation of electrical equipment.

Method used

A terminal block with monitoring function is designed. By connecting a thermistor in series on the data transmission line, the temperature change of the terminal block is monitored in real time by utilizing the change in the resistance value of the thermistor. The terminal block is then connected to an external monitor through a signal terminal to achieve real-time temperature monitoring.

Benefits of technology

Real-time temperature monitoring of the terminal blocks is achieved to ensure the normal operation of electrical equipment and improve safety and reliability.

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Abstract

The invention relates to the technical field of wiring terminals, in particular to a wiring terminal with a monitoring function, which comprises a bottom shell, two symmetrically arranged wiring frames are fixedly connected to the top of the bottom shell, and two symmetrically arranged connecting plates are fixedly connected between the two wiring frames. The monitoring device has the advantages that the monitoring frame is inserted between the two wiring frames, at the moment, the two clamping heads are connected with the two connecting plates in a clamping mode, the monitoring device can be assembled on the wiring terminals, and then a worker uses soldering tin to weld the signal terminals and the data transmission lines together; the thermistor is arranged in the wiring terminal, an external monitor is connected with the thermistor through the signal terminal, when the temperature in the wiring terminal changes, the resistance value in the thermistor can be changed, then the current in the data transmission line changes, and the temperature in the wiring terminal can be monitored in real time through the external monitor; therefore, the normal operation of the electrical equipment is ensured.
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Description

Technical Field

[0001] The present invention relates to the technical field of connection terminals, in particular to a connection terminal with a monitoring function. Background Art

[0002] Terminal blocks, as key components of electrical connections, are widely used in various electrical devices and systems. Their primary function is to connect wiring harnesses between power supplies, devices, and external interfaces, ensuring efficient and secure transmission of power and signals. Terminal blocks play an indispensable role in a wide range of fields, including industrial production, household appliances, and communications equipment. They not only simplify the wiring process and improve production efficiency, but also ensure the stability and safety of electrical connections. Specifically, terminal blocks, through their unique structural design, securely clamp wires and transmit current through internal conductive components. This design makes connecting electrical devices more convenient and efficient.

[0003] However, in practice, terminal blocks generate a certain amount of heat when powered. This is because when current flows through a conductor, the resistance creates heat. This heat can have a significant impact on the terminal blocks. Excessive heat accumulation can cause the terminal blocks to overheat, potentially leading to a range of problems. Because terminal blocks are often installed inside equipment or in densely wired areas, they are difficult for workers to directly access, making temperature monitoring difficult and making it difficult to determine their operating status. Summary of the Invention

[0004] The object of the present invention is to solve at least one of the technical drawbacks.

[0005] Therefore, one object of the present invention is to provide a terminal block with a monitoring function to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present invention provides a wiring terminal with a monitoring function, including a bottom shell, two symmetrically arranged wiring frames are fixedly connected to the top of the bottom shell, two symmetrically arranged connecting plates are fixedly connected between the two wiring frames, a monitoring frame is fixedly connected between the two wiring frames, and the left and right sides of the monitoring frame are fixedly connected with card joints, and the two card joints are respectively connected to the two connecting plates, a data transmission line is laid inside the monitoring frame, and a number of thermistors are connected in series on the data transmission line, and the several thermistors are all located between the two wiring frames, and signal terminals are welded to the connecting plates at both ends of the data transmission line, and a number of linear array wiring slots are opened on the side of each wiring frame away from the monitoring frame, and a pressure plate is slidably connected to the inner wall of each wiring slot, a spring is fixedly connected between the pressure plate and the bottom shell, and a screw is rotatably connected to one side of the pressure plate, and a number of linear array nuts are embedded in the interior of the bottom shell, and the screws and nuts correspond to each other up and down.

[0007] Preferably, any of the above schemes is that a terminal cover is fixedly connected to the inner wall of each wiring slot, the screw is located below the terminal cover, and a through hole is opened through the top of the terminal cover, and the through hole corresponds to the nut part of the screw above and below.

[0008] Preferably, from any of the above schemes, a guide rod is fixedly connected between each terminal cover plate and the bottom shell, the pressure plate is slidably connected to the guide rod, and the guide rod is located inside the spring.

[0009] Preferably, any of the above solutions is that the screw portion of the screw is rotatably connected to a gasket, and the bottom surface of the gasket is in contact with the top surface of the pressure plate.

[0010] Preferably, any of the above schemes has two symmetrically arranged plastic guide plates fixedly connected to the inner wall of each wiring slot, and guide grooves are provided on the left and right sides of the pressure plate, and the pressure plate is slidingly connected to the two plastic guide plates through the two guide grooves.

[0011] Preferably, any of the above solutions has a relief hole formed through one side of the connecting plate close to the signal terminal, and the data transmission line is located inside the relief hole.

[0012] Preferably, from any of the above solutions, a clamping groove is provided through one side of each of the connecting plates, and the two clamping joints are respectively clamped with the two connecting plates through the clamping groove.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. When wiring operations are required, the bottom shell can be locked in the use position with bolts, and the two ends of the data transmission line can be passed through the connecting plate through the avoidance holes. The monitoring frame can then be inserted between the two wiring frames. At this time, the two card connectors are respectively connected to the two connecting plates. The monitoring device can be assembled to the wiring terminal, and then the signal terminal and the data transmission line are welded together with solder, and the external monitor is connected to the thermistor through the signal terminal. When the temperature inside the wiring terminal changes, the resistance value inside the thermistor can be changed, thereby causing the current inside the data transmission line to change. The temperature inside the wiring terminal can be monitored in real time through the external monitor to ensure the normal operation of the electrical equipment.

[0014] 2. After the monitoring structure is installed, insert the terminal of the wire into the wiring slot, then use a screwdriver to twist the screw through the through hole until the screw shaft is screwed into the nut. The terminal of the wire can be locked by the pressure plate. The wiring position is a metal frame with anti-loosening screws, which is suitable for soft and hard cables and various on-site installation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the assembly of the present invention from a first perspective; Figure 2 A schematic structural diagram of the assembly of the present invention from a second perspective; Figure 3 It is a schematic structural diagram of the assembly of the present invention from a third perspective; Figure 4 A schematic structural diagram of the assembly of the present invention from a fourth perspective; Figure 5 is a schematic diagram of a first cross-sectional structure of an assembly of the present invention; Figure 6 This is a schematic diagram of the second cross-sectional structure of the assembly of the present invention;.

[0016] In the figure: 1- bottom shell, 2- wiring frame, 3- connection plate, 4- monitoring frame, 5- card connector, 6- data transmission line, 7- thermistor, 8- signal terminal, 9- wiring slot, 10- pressure plate, 11- spring, 12- screw, 13- nut, 14- terminal cover, 15- through hole, 16- guide rod, 17- gasket, 18- plastic guide plate, 19- guide slot, 20- avoidance hole, 21- card slot. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0018] like Figures 1 to 6As shown, a terminal block with a monitoring function includes a bottom shell 1, two symmetrically arranged wiring frames 2 are fixedly connected to the top of the bottom shell 1, two symmetrically arranged connecting plates 3 are fixedly connected between the two wiring frames 2, a monitoring frame 4 is fixedly connected between the two wiring frames 2, and a card connector 5 is fixedly connected to the left and right sides of the monitoring frame 4. The two card connectors 5 are respectively connected to the two connecting plates 3. A data transmission line 6 is laid inside the monitoring frame 4, and a number of thermistors 7 are connected in series on the data transmission line 6. The number of thermistors 7 are all located between the two wiring frames 2. Both ends of the data transmission line 6 pass through the connecting plate 3 and are welded with signal terminals 8. A number of linear array wiring slots 9 are opened on the side of each wiring frame 2 away from the monitoring frame 4. A pressure plate 10 is slidably connected to the inner wall of each wiring slot 9. A spring 11 is fixedly connected between the pressure plate 10 and the bottom shell 1, and a screw 12 is rotatably connected to one side of the pressure plate 10. A number of linear array nuts 13 are embedded in the interior of the bottom shell 1, and the screw 12 corresponds to the nut 13 up and down.

[0019] As an optional technical solution of the present invention, a terminal cover 14 is fixedly connected to the inner wall of each wiring slot 9, the screw 12 is located below the terminal cover 14, and a through hole 15 is opened through the top of the terminal cover 14. The through hole 15 corresponds to the nut part of the screw 12 above and below. This design can protect the screw 12 from direct external touch or misoperation. At the same time, the through hole 15 allows tools (such as a screwdriver) to easily access the screw 12 for tightening operations, thereby improving the safety and usability of the wiring terminal.

[0020] As an optional technical solution of the present invention, a guide rod 16 is fixedly connected between each terminal cover plate 14 and the bottom shell 1, and the pressure plate 10 is slidingly connected to the guide rod 16. The guide rod 16 is located inside the spring 11. The guide rod 16 fixedly connected between the terminal cover plate 14 and the bottom shell 1, and the sliding connection between the pressure plate 10 and the guide rod 16 ensure that the pressure plate 10 can move smoothly in a predetermined direction when subjected to force, avoiding deviation or jamming. At the same time, the guide rod 16 is located inside the spring 11, which enhances the stability and durability of the structure.

[0021] As an optional technical solution of the present invention, the screw portion of the screw 12 is rotatably connected to the gasket 17, and the bottom surface of the gasket 17 is in contact with the top surface of the pressure plate 10. The screw portion of the screw 12 is rotatably connected to the gasket 17, and the bottom surface of the gasket 17 is in contact with the top surface of the pressure plate 10. This design increases the contact area between the screw 12 and the pressure plate 10, disperses the pressure, prevents the pressure plate 10 from being damaged due to excessive local force, and improves the fastening effect.

[0022] As an optional technical solution of the present invention, two symmetrically arranged plastic guide plates 18 are fixedly connected to the inner wall of each wiring slot 9, and guide grooves 19 are opened on the left and right sides of the pressure plate 10. The pressure plate 10 is slidingly connected to the two plastic guide plates 18 through the two guide grooves 19. The two symmetrically arranged plastic guide plates 18 fixedly connected to the inner wall of each wiring slot 9 and the guide grooves 19 opened on the left and right sides of the pressure plate 10 make the pressure plate 10 more stable and accurate when moving, avoid shaking or dislocation, and improve the overall performance and reliability of the terminal.

[0023] As an optional technical solution of the present invention, a avoidance hole 20 is opened through one side of the connecting plate 3 close to the signal terminal 8, and the data transmission line 6 is located inside the avoidance hole 20. The avoidance hole 20 opened through one side of the connecting plate 3 close to the signal terminal 8 allows the data transmission line 6 to pass through smoothly, thereby avoiding damage to the data transmission line 6 due to obstruction or affecting the signal transmission quality, while keeping the wiring terminal neat and beautiful.

[0024] As an optional technical solution of the present invention, a snap-in groove 21 is provided on one side of each connecting plate 3, and the two snap-in joints 5 are respectively snap-connected to the two connecting plates 3 through the snap-in grooves 21. The snap-in groove 21 is provided on one side of each connecting plate 3, and the two snap-in joints 5 are snap-connected to the two connecting plates 3 through the snap-in grooves 21. This design simplifies the assembly process of the terminal block, improves assembly efficiency and stability, and facilitates disassembly and maintenance, thereby reducing the cost of use.

[0025] A terminal block with monitoring function, the working principle is as follows: 1): When wiring operations are required, the bottom shell 1 can be locked in the use position with bolts, and the two ends of the data transmission line 6 can pass through the connection plate 3 through the avoidance hole 20, and then the monitoring frame 4 can be inserted between the two wiring frames 2. At this time, the two card connectors 5 are respectively connected to the two connection plates 3, and the monitoring device can be assembled to the wiring terminal.

[0026] 2): Use solder to weld the signal terminal 8 and the data transmission line 6 together, and connect the external monitor to the thermistor 7 through the signal terminal 8. When the temperature inside the terminal changes, the resistance value inside the thermistor 7 can be changed, thereby causing the current inside the data transmission line 6 to change. The temperature inside the terminal can be monitored in real time through the external monitor.

[0027] 3): After the monitoring structure is installed, insert the terminal of the wire into the wiring slot 9, then use a screwdriver to twist the screw 12 through the through hole 15 until the screw 12 is screwed into the nut 13, and then the terminal of the wire can be locked by the pressure plate 10.

[0028] In summary, when wiring operations are required for the terminal block with monitoring function, the bottom shell 1 can be locked in the use position with bolts, and the two ends of the data transmission line 6 can be passed through the connecting plate 3 through the avoidance hole 20, and then the monitoring frame 4 can be plugged between the two wiring frames 2. At this time, the two card connectors 5 are respectively connected to the two connecting plates 3, and the monitoring device can be assembled to the terminal block. Then, the signal terminal 8 and the data transmission line 6 are welded together with solder, and the external monitor is connected to the thermistor 7 through the signal terminal 8. When the temperature inside the terminal block changes, the thermistor can be changed. The resistance value inside the resistor 7 causes the current inside the data transmission line 6 to change. The temperature inside the terminal block can be monitored in real time through an external monitor to ensure the normal operation of the electrical equipment. After the monitoring structure is installed, the terminal of the wire is inserted into the wiring slot 9. Then, a screwdriver is used to twist the screw 12 through the through hole 15 until the screw portion of the screw 12 is screwed into the nut 13. The terminal of the wire can be locked by the pressure plate 10. The wiring position is a metal frame with anti-loosening screws, which is suitable for soft and hard cables and various on-site installation conditions.

Claims

1. A terminal block with a monitoring function, characterized in that: The invention comprises a bottom shell (1), wherein the top of the bottom shell (1) is fixedly connected to two symmetrically arranged wiring frames (2), two symmetrically arranged connecting plates (3) are fixedly connected between the two wiring frames (2), a monitoring frame (4) is fixedly connected between the two wiring frames (2), and the left and right sides of the monitoring frame (4) are fixedly connected to card connectors (5), the two card connectors (5) are respectively connected to the two connecting plates (3), a data transmission line (6) is laid inside the monitoring frame (4), and a plurality of thermistors (7) are connected in series on the data transmission line (6), and the plurality of thermistors (7) are located at two Between the wiring frames (2), both ends of the data transmission line (6) pass through the connecting plate (3) and are welded with signal terminals (8), and a plurality of linear array wiring slots (9) are opened on the side of each wiring frame (2) away from the monitoring frame (4), and a pressure plate (10) is slidably connected to the inner wall of each wiring slot (9), and a spring (11) is fixedly connected between the pressure plate (10) and the bottom shell (1), and a screw (12) is rotatably connected to one side of the pressure plate (10), and a plurality of linear array nuts (13) are embedded in the interior of the bottom shell (1), and the screws (12) and the nuts (13) correspond to each other up and down.

2. The terminal block with monitoring function according to claim 1, characterized in that: A terminal cover plate (14) is fixedly connected to the inner wall of each wiring slot (9), the screw (12) is located below the terminal cover plate (14), and a through hole (15) is provided through the top of the terminal cover plate (14), and the through hole (15) corresponds to the nut portion of the screw (12) above and below.

3. The terminal block with monitoring function according to claim 2, characterized in that: A guide rod (16) is fixedly connected between each terminal cover plate (14) and the bottom shell (1), the pressure plate (10) is slidably connected to the guide rod (16), and the guide rod (16) is located inside the spring (11).

4. The terminal block with monitoring function according to claim 3, characterized in that: The screw portion of the screw (12) is rotatably connected to a gasket (17), and the bottom surface of the gasket (17) is in contact with the top surface of the pressing plate (10).

5. The terminal block with monitoring function according to claim 4, characterized in that: Two symmetrically arranged plastic guide plates (18) are fixedly connected to the inner wall of each wiring slot (9), and guide slots (19) are provided on the left and right sides of the pressing plate (10). The pressing plate (10) is slidably connected to the two plastic guide plates (18) through the two guide slots (19).

6. The terminal block with monitoring function according to claim 5, characterized in that: A relief hole (20) is provided through one side of the connection plate (3) close to the signal terminal (8), and the data transmission line (6) is located inside the relief hole (20).

7. The terminal block with monitoring function according to claim 6, characterized in that: A clamping groove (21) is provided through one side of each connecting plate (3), and the two clamping joints (5) are respectively clamped to the two connecting plates (3) through the clamping groove (21).