Cable accessory device with temperature measurement function

Abstract

The utility model provides a cable accessory device with a temperature measurement function, which comprises an accessory shell, the accessory shell is T-shaped, a stress cone is arranged in the accessory shell, and a power cable penetrates through the stress cone and is positioned in the accessory shell; a C-shaped sleeve is arranged at one end of the accessory shell, busbars are arranged at one end of the C-shaped sleeve and in the accessory shell, one group of busbars are arranged in the C-shaped sleeve in a penetrating manner, and two ends of the busbars are respectively connected with a power cable and the other group of busbars; one end of the accessory housing is provided with a temperature measurement assembly, and the temperature measurement assembly is in contact with the power cable and one group of busbars. According to the accessory device, the temperature measuring assembly is arranged at one end of the accessory shell, the temperature measuring assembly is in contact with the connection point where the power cable is in contact with the busbar, temperature information in the cable elbow-shaped head can be measured, temperature abnormity can be found in time, measures can be taken rapidly, further deterioration of faults can be effectively avoided, the risk of equipment damage is reduced, and the service life of the equipment is prolonged. And stable operation of a power system is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable accessories, and more specifically, relates to a cable accessory device with a temperature measurement function. Background Art

[0002] In the power distribution system, equipment such as gas filling cabinets, ring network cabinets, and cable branch boxes are widely used. These equipment use elbows when the cables are led out. In high-voltage cables, the use of elbows will generate heat, causing the temperature of the electrical connection points inside the high-voltage cable elbows to rise. If the temperature of the cable elbows is too high, it is easy to malfunction. Over a long period of time, it may cause overheating fires and explosions, which will directly threaten the normal operation of the power distribution network and seriously affect the power supply quality and people's livelihood and economy. However, the insulation requirements at the cable elbows are high and there is no current passing through, making it impossible to effectively monitor the temperature of the electrical connection points inside the cable elbows, resulting in a blind spot for line monitoring. When a fault occurs in this area, it cannot be handled in time, which can easily cause serious damage to the equipment and also easily create safety risks. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a cable accessory device with a temperature measurement function to solve the technical problems in the existing technology that the temperature of the cable elbow head cannot be effectively monitored, resulting in blind spots in line monitoring, and faults cannot be handled in time, which can easily lead to damage to the equipment and cause safety risks.

[0004] The purpose and effect of the cable accessory device with temperature measurement function of the present utility model are achieved by the following specific technical means:

[0005] A cable accessory device with a temperature measuring function comprises an accessory shell, which is arranged in a T-shape, a stress cone is arranged in the accessory shell, and a power cable passes through the stress cone and is located in the accessory shell; a C-shaped sleeve is arranged at one end of the accessory shell, and a busbar is arranged at one end of the C-shaped sleeve and in the accessory shell, wherein one group of the busbars is arranged in the C-shaped sleeve, and its two ends are respectively connected to the power cable and another group of the busbars; a temperature measuring component is arranged at one end of the accessory shell, and the temperature measuring component is in contact with the power cable and one group of the busbars.

[0006] According to a preferred embodiment, the temperature measuring component includes an insulating plug, which is clamped in the accessory housing, and a fixed copper part is provided in the insulating plug, wherein one end of a group of busbars is clamped in the fixed copper part, and the fixed copper part is in contact with the power cable.

[0007] According to a preferred embodiment, a heat conducting member is provided in the insulating plug, one end of the fixed copper member is clamped in the heat conducting member and is connected by two sets of fixing bolts; the heat conducting member is made of silicon nitride.

[0008] According to a preferred embodiment, the temperature measuring component also includes an insulating plug and a temperature sensor. The insulating plug is clamped in the insulating plug. A positioning block is provided on the insulating plug. The insulating plug is provided with a positioning groove corresponding to the positioning block. The positioning block is clamped in the positioning groove. The insulating plug and the insulating plug are detachably connected, and the temperature sensor is passed through the insulating plug.

[0009] According to a preferred embodiment, one end of the temperature sensor contacts the heat conductor, and the other end is provided with a wire, one end of the wire is provided with a mounting member, and the temperature sensor is connected to the temperature measurement data concentrator through the wire and the mounting member.

[0010] According to a preferred embodiment, one end of the temperature sensor is in contact with the heat conductor, a wireless module is provided in the insulating plug, the temperature sensor is connected to the wireless module, and the temperature sensor is electrically connected to the temperature measurement data concentrator through the wireless module.

[0011] According to a preferred embodiment, an insulating cap is provided at one end of the accessory housing, and the insulating plug is inserted into the insulating cap.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. A temperature measurement assembly is installed at one end of the accessory housing. A fixed copper fitting is installed on the insulating plug. One end of the busbar is clamped into the fixed copper fitting, which contacts the power cable. A temperature sensor within the temperature measurement assembly measures the temperature at the connection point between the busbar and the power cable, providing real-time and accurate temperature information inside the cable elbow. The temperature measurement assembly allows personnel to quickly take action if temperature anomalies occur, preventing further deterioration of the fault. This effectively reduces the risk of equipment damage, ensures stable operation of the power system, reduces power outages caused by equipment failure, and improves power supply reliability and continuity.

[0014] 2. The temperature measurement assembly inserts the temperature sensor into an insulating plug, which is then locked into the plug. The positioning block on the insulating plug locks into the positioning slot on the plug, effectively securing the temperature sensor in place and preventing it from moving during use, which could lead to unstable measurement results. Furthermore, the temperature sensor is connected to the fixed copper fitting via a thermal conductor, providing an optimal path for temperature conduction, allowing the temperature sensor to measure the temperature of the heat-generating area. This ensures both heat transfer and sensor stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model after assembly.

[0016] Figure 2 It is a structural diagram of the temperature measurement component.

[0017] Figure 3 It is a structural schematic diagram of the insulating plug of Example 1.

[0018] Figure 4 It is a structural diagram of the insulating plug of Example 2.

[0019] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0020] 11. Accessory housing; 12. Stress cone; 21. Power cable; 22. C-type bushing; 23. Busbar; 24. Insulation cap; 31. Insulation plug; 32. Fixed copper parts; 33. Heat conducting parts; 34. Insulation plug; 35. Temperature sensor; 36. Positioning block; 37. Wire; 38. Mounting parts; 39. Wireless module. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the technical solution of the present invention, but are not intended to limit the scope of protection of the present invention. Example 1:

[0022] like Figures 1 to 3As shown, the present invention provides a cable accessory device with temperature measurement functionality. The device includes an accessory housing 11, which is configured in a T-shaped structure. A stress cone 12 is disposed within the accessory housing 11, through which a power cable 21 passes. The stress cone 12 effectively improves the electric field distribution and reduces the local electric field intensity, thereby reducing the risk of corona discharge and insulation breakdown, ensuring the safe operation of the power cable 21. A C-shaped sleeve 22 is disposed at one end of the accessory housing 11. Busbars 23 are disposed at one end of the C-shaped sleeve 22 and within the accessory housing 11. One set of busbars 23 extends within the C-shaped sleeve 22, with its ends connected to the power cable 21 and another set of busbars 23, respectively. This ensures stable current transmission and lays the foundation for the operation of the entire power transmission system. A temperature measurement component is disposed at one end of the accessory housing 11. The temperature measurement component contacts the power cable 21 and one set of busbars 23, enabling real-time sensing of temperature changes at the connection points between the power cable 21 and the busbars 23. This real-time temperature monitoring can promptly detect potential faults and anomalies, preventing further expansion and deterioration of the faults.

[0023] like Figure 1 、 Figure 2 As shown, the temperature measurement component includes an insulating plug 31, which is clamped in the accessory housing 11 to ensure the normal operation of the entire temperature measurement system. A fixed copper part 32 is provided inside the insulating plug 31, and one end of a group of busbars 23 is clamped in the fixed copper part 32 to achieve a stable connection. At the same time, the fixed copper part 32 is also in direct contact with the power cable 21, so that the heat generated when the current passes through can be quickly conducted. A heat conductor 33 is also provided inside the insulating plug 31. One end of the fixed copper part 32 is clamped in the heat conductor 33 and is connected by two sets of fixing bolts, which not only ensures the stability of the structure, but also ensures the high efficiency of heat transfer.

[0024] The heat conductor 33 is made of silicon nitride, which has excellent thermal conductivity. Its high thermal conductivity allows it to quickly conduct heat away from the connection between the fixed copper member 32 and the power cable 21, allowing heat to be quickly and accurately transferred from the connection point between the power cable 21 and the busbar 23 to the temperature measurement component. This enables temperature monitoring, timely detection of potential overheating issues, and provides a strong guarantee for the safe and stable operation of the entire power system.

[0025] like Figure 2 、 Figure 3As shown, the temperature measurement assembly also includes an insulating plug 34 and a temperature sensor 35. The insulating plug 34 is mounted within the insulating plug 31, providing an installation environment for the internal temperature sensor 35. A positioning block 36 is provided on the insulating plug 34, while a corresponding positioning slot is provided on the insulating plug 31. When the positioning block 36 is mounted within the positioning slot, it not only positions the insulating plug 34 within the insulating plug 31 but also enhances its stability and prevents positional shifting due to vibration or other external factors during use. Furthermore, the insulating plug 34 and the insulating plug 31 are detachably connected, facilitating subsequent maintenance and replacement.

[0026] The temperature sensor 35 is inserted into the insulating plug 34, and one end of the temperature sensor 35 is in contact with the heat conductor 33. This direct contact ensures that the temperature can be quickly and accurately transmitted to the temperature sensor 35, thereby realizing real-time temperature monitoring. The temperature sensor 35 can be a thermistor or a Pt resistor. The other end of the temperature sensor 35 is provided with a wire 37, which has good electrical conductivity and signal transmission performance. One end of the wire 37 is also provided with a mounting part 38, and the temperature sensor 35 can be connected to the temperature measurement data concentrator through the wire 37 and the mounting part 38. The temperature data collected by the temperature sensor 35 can be transmitted to the temperature measurement data concentrator in a timely and accurate manner for processing and analysis. Relevant staff can use the temperature measurement data concentrator to understand the temperature changes inside the cable elbow in real time. Once a temperature abnormality is found, they can quickly take corresponding measures to effectively prevent potential failures and safety hazards.

[0027] One end of the accessory housing 11 is also specially provided with an insulating cap 24, and the insulating plug 34 is inserted into the insulating cap 24. The insulating cap 24 further enhances the insulation performance of the entire device, effectively preventing external factors from interfering with and affecting the temperature measuring component, and ensuring the accuracy and reliability of temperature measurement. Example 2:

[0028] Based on the cable accessory device with a temperature measurement function provided in Example 1 of this application, Example 2 of this application provides a cable accessory device with a temperature measurement function. This Example 2 is merely a preferred embodiment of Example 1, and the implementation of Example 2 will not affect the independent implementation of Example 1. The second embodiment of this utility model will be further described below.

[0029] like Figure 4As shown, one end of the temperature sensor 35 is in contact with the heat conducting member 33 to ensure that the temperature change transmitted by the heat conducting member 33 can be quickly sensed. The wireless module 39 is arranged inside the insulating plug 34, and the temperature sensor 35 is connected with the wireless module 39. The temperature sensor 35 can transmit the collected temperature data to the wireless module 39 in real time, and the wireless module 39 sends the received temperature information in the form of a wireless signal. The wireless module 39 can adopt an SX1278 wireless module. The temperature sensor 35 is electrically connected with the temperature measurement data concentrator through the wireless module 39. Without cable connection, the temperature data can be transmitted to the temperature measurement data concentrator. This wireless connection mode greatly improves the flexibility and convenience of the system, and reduces the complexity and cost of wiring.

[0030] The difference between the second embodiment and the first embodiment is that the wireless module 39 is used instead of the wire 37 and the mounting member 38, and the electrical connection with the temperature measurement data concentrator is realized through the wireless module 39. The electrical connection with the temperature measurement data concentrator can be realized in a more convenient and flexible manner without the constraint of physical connection, which not only reduces the complexity and cost of wiring, but also avoids the data transmission problem caused by damage or poor connection of the wire 37. The remaining conditions are the same as those of the first embodiment, and therefore the second embodiment will not be described again.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A cable accessory device with a temperature measurement function, comprising an accessory housing (11), characterized in that: The accessory housing (11) is configured to be T-shaped, a stress cone (12) is provided in the accessory housing (11), and the power cable (21) passes through the stress cone (12) and is located in the accessory housing (11); a C-shaped sleeve (22) is provided at one end of the accessory housing (11), and a busbar (23) is provided at one end of the C-shaped sleeve (22) and in the accessory housing (11), wherein one group of the busbars (23) is provided in the C-shaped sleeve (22), and its two ends are respectively connected to the power cable (21) and another group of the busbars (23); a temperature measuring component is provided at one end of the accessory housing (11), and the temperature measuring component is in contact with the power cable (21) and one group of the busbars (23).

2. A cable accessory device with temperature measurement function according to claim 1, characterized in that: The temperature measuring assembly includes an insulating plug (31), the insulating plug (31) is clamped in the accessory housing (11), a fixed copper piece (32) is provided in the insulating plug (31), one end of a group of busbars (23) is clamped in the fixed copper piece (32), and the fixed copper piece (32) is in contact with the power cable (21).

3. The cable accessory device with temperature measurement function according to claim 2, characterized in that: A heat conducting member (33) is provided in the insulating plug (31), one end of the fixed copper member (32) is clamped in the heat conducting member (33) and connected via two sets of fixing bolts; the heat conducting member (33) is made of silicon nitride.

4. The cable accessory device with temperature measurement function according to claim 3, characterized in that: The temperature measuring component further includes an insulating plug (34) and a temperature sensor (35), wherein the insulating plug (34) is mounted in the insulating plug (31), a positioning block (36) is provided on the insulating plug (34), and a positioning groove is provided on the insulating plug (31) corresponding to the positioning block (36), and the positioning block (36) is mounted in the positioning groove. The insulating plug (34) is detachably connected to the insulating plug (31), and the temperature sensor (35) is passed through the insulating plug (34).

5. The cable accessory device with temperature measurement function according to claim 4, characterized in that: One end of the temperature sensor (35) is in contact with the heat conducting member (33), and the other end is provided with a wire (37). One end of the wire (37) is provided with a mounting member (38). The temperature sensor (35) is connected to the temperature measurement data concentrator via the wire (37) and the mounting member (38).

6. The cable accessory device with temperature measurement function according to claim 4, characterized in that: One end of the temperature sensor (35) contacts the heat conducting member (33), a wireless module (39) is provided in the insulating plug (34), the temperature sensor (35) is connected to the wireless module (39), and the temperature sensor (35) is electrically connected to the temperature measurement data concentrator via the wireless module (39).

7. A cable accessory device with temperature measurement function according to claim 5 or 6, characterized in that: An insulating cap (24) is provided at one end of the accessory housing (11), and the insulating plug (34) is inserted into the insulating cap (24).

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