A power distribution cabinet cable joint overheating detection device

Abstract

The utility model discloses a kind of power distribution cabinet cable joint overheating detection equipment, it is related to electrical engineering technical field.A kind of power distribution cabinet cable joint overheating detection equipment, including installation base, mounting plate and cable joint temperature monitor, shock absorber is provided on installation base, shock absorber includes sliding mounting plate, two fixed supports and three dampers, when vibration is generated in the operation process of power distribution cabinet in shock absorber, vibration is transmitted to installation base, and then sliding mounting plate is moved, three dampers play a role at this time, the kinetic energy generated by sliding mounting plate vibration is converted into heat energy, effectively reduce vibration amplitude, while two simultaneously sliding on first fixed rod "Z" type fixed support, first buffer spring is compressed or stretched, absorbs and releases energy, further slows down vibration, in this way in the stable operation process of equipment, and then effectively improve the accuracy of test while improving the practicability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to an overheat detection device for cable joints in power distribution cabinets. Background Technology

[0002] In modern power systems, distribution cabinets, as the core hubs for power distribution and control, are widely used in various fields such as industrial production, commercial buildings, and residential life. However, during operation, distribution cabinets are affected by factors such as the operation of surrounding mechanical equipment, power grid harmonics, and electromagnetic interference, which generate a continuous and complex vibration environment. Especially in industrial plants and other scenarios, the frequent start-up and shutdown of large mechanical equipment and the high-speed operation of motors will cause the distribution cabinet to generate low-frequency, high-intensity vibrations; while the vibrations caused by power grid harmonics exhibit high-frequency, small vibration characteristics.

[0003] As a crucial device for ensuring the safe operation of distribution cabinets, cable joint temperature monitoring instruments integrate high-precision temperature sensors, signal processing modules, and other precision electronic components. Vibration can severely affect the performance and reliability of the monitoring instrument. Continuous vibration can loosen the solder joints of the circuit board inside the monitoring instrument, break the pins of electronic components, accelerate equipment aging, shorten its service life, and even lead to equipment failure. This can cause the distribution cabinet to lose its ability to monitor the overheating of cable joints, thereby triggering serious accidents such as fires and power outages.

[0004] Existing cable joint temperature monitoring instruments are simply fixed to the inner wall of the distribution cabinet with ordinary bolts. However, this means that vibration energy is directly transmitted to the equipment, which can easily lead to bolt loosening and equipment displacement after long-term use. Furthermore, since the temperature distribution of cable joints is not uniform, the sensor can only accurately measure the temperature of key parts of the joint when it is in a specific position. Once the position is off, the measurement results will be biased and cannot truly reflect the actual temperature of the cable joint. This can lead to misjudgment or omission of overheating of the cable joint, thereby reducing the practicality of the equipment. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a device for detecting overheating of cable joints in power distribution cabinets. This device can solve the problem of fixing the monitoring instrument to the inner wall of the power distribution cabinet with ordinary bolts. However, this method directly transmits vibration energy to the device, which can easily lead to bolt loosening and device displacement after long-term use. Furthermore, since the temperature distribution of the cable joint is not uniform, the sensor can only accurately measure the temperature of the key parts of the joint when it is in a specific position. Once the position is off, the measurement results will be biased and cannot truly reflect the actual temperature of the cable joint. This leads to misjudgment or omission of the overheating condition of the cable joint, thereby reducing the practicality of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an overheat detection device for cable joints in a power distribution cabinet, comprising a mounting base, a mounting plate, and a cable joint temperature monitor, wherein a shock-absorbing device is provided on the mounting base;

[0007] The damping device includes a sliding mounting plate, two fixed brackets and three dampers. The outer wall of the sliding mounting plate is slidably connected to the inner upper end of the mounting base. All three dampers are installed inside the mounting base. The mounting base has two first fixed rods fixedly connected inside.

[0008] The outer walls of the two first fixing rods are fitted with first buffer springs, and the four grooves on the inner wall of the mounting base are fixedly connected with second fixing rods, and the outer walls of the four second fixing rods are fitted with second buffer springs.

[0009] Preferably, both of the fixed brackets are Z-shaped, and the two fixed brackets are slidably connected to the outer wall of the corresponding first fixed rod;

[0010] The two ends of the two first buffer springs are fixedly connected to the inner wall of the corresponding mounting base and the outer wall of the fixed bracket, respectively.

[0011] Preferably, the ends of the three dampers away from the mounting base are all fixedly connected to the lower surface of the sliding mounting plate, and the four protrusions on the outer wall of the sliding mounting plate are slidably connected to the outer wall of the corresponding second fixing rod.

[0012] The two ends of the four second buffer springs are fixedly connected to the inner walls of the four grooves on the inner wall of the mounting base and the outer walls of the four protrusions on the sliding mounting plate.

[0013] Preferably, the upper surface of the sliding mounting plate has two T-shaped block grooves, and the lower surface of the mounting plate is fixedly connected to two T-shaped blocks;

[0014] The outer walls of the two T-blocks are slidably connected to the interior of the corresponding T-block grooves, and the cable connector temperature monitor is fixedly installed on the upper surface of the mounting plate.

[0015] Preferably, the upper surface of the mounting plate is threaded with two fixing bolts;

[0016] The two T-shaped block slots are equipped with fixing bolt slots, and the cable connector temperature monitoring instrument is equipped with a control panel.

[0017] Preferably, the ends of the two fixing bolts near the fixing bolt slots are both threaded into the interior of the T-shaped block slot and respectively connected to the internal threads of the corresponding fixing bolt slots; a detection head is installed at one end of the cable connector temperature monitor.

[0018] The detection head is electrically connected to the cable joint temperature monitor, and the control panel is electrically connected to the cable joint temperature monitor.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This distribution cabinet cable connector overheat detection device utilizes a shock absorption system. When the distribution cabinet vibrates during operation, the vibration is transmitted to the mounting base, which in turn drives the sliding mounting plate. At this time, three dampers function to convert the kinetic energy generated by the vibration of the sliding mounting plate into heat energy, effectively reducing the vibration amplitude. Simultaneously, two "Z"-shaped fixed brackets slide on the first fixed rod, and the first buffer spring is compressed or extended to absorb and release energy, further mitigating the vibration. The protrusions on the outer wall of the sliding mounting plate slide on the second fixed rod, and the second buffer spring also assists in shock absorption through compression and extension. Through the coordinated work of these components, the impact of vibration on the equipment is effectively reduced, ensuring stable operation of the equipment. This, in turn, effectively improves the accuracy of the test and enhances the practicality of the equipment during stable operation. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the external structure of the sliding mounting plate of this utility model;

[0024] Figure 3 This is a schematic diagram of the external structure of the fixing bracket of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the mounting base plate of this utility model.

[0026] Reference numerals: 1. Mounting base; 2. Fixing bolt; 3. Cable connector temperature monitor; 4. Detection head; 5. Mounting plate; 6. Control panel; 7. Sliding mounting plate; 8. T-block slot; 9. Fixing bolt slot; 10. T-block; 11. Fixing bracket; 12. First fixing rod; 13. First buffer spring; 14. Damper; 15. Second fixing rod; 16. Second buffer spring. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-4 This utility model provides a technical solution: an overheat detection device for cable joints in a power distribution cabinet, including a mounting base 1, a mounting plate 5, and a cable joint temperature monitor 3;

[0032] The mounting base 1 is equipped with a shock absorption device;

[0033] The damping device includes a sliding mounting plate 7, two fixed brackets 11, and three dampers 14. The outer wall of the sliding mounting plate 7 is slidably connected to the inner upper end of the mounting base 1. All three dampers 14 are installed inside the mounting base 1. The two fixed brackets 11 are both Z-shaped. Two first fixed rods 12 are fixedly connected inside the mounting base 1. The two fixed brackets 11 are slidably connected to the outer wall of the corresponding first fixed rod 12. The outer wall of each of the two first fixed rods 12 is fitted with a first buffer spring 13. The two ends of the two first buffer springs 13 are respectively connected to the corresponding mounting base. The inner wall of the base 1 is fixedly connected to the outer wall of the fixed bracket 11. The ends of the three dampers 14 away from the mounting base 1 are fixedly connected to the lower surface of the sliding mounting plate 7. The four grooves on the inner wall of the mounting base 1 are fixedly connected to the second fixing rods 15. The four protrusions on the outer wall of the sliding mounting plate 7 are slidably connected to the outer walls of the corresponding second fixing rods 15. The outer walls of the four second fixing rods 15 are all fitted with second buffer springs 16. The two ends of the four second buffer springs 16 are fixedly connected to the inner walls of the four grooves on the inner wall of the mounting base 1 and the outer walls of the four protrusions on the sliding mounting plate 7.

[0034] The sliding mounting plate 7 has two T-shaped slots 8 on its upper surface, and two T-shaped blocks 10 are fixedly connected to the lower surface of the mounting plate 5. The outer walls of the two T-shaped blocks 10 are slidably connected to the interior of the corresponding T-shaped slots 8. The cable joint temperature monitor 3 is fixedly mounted on the upper surface of the mounting plate 5. Two fixing bolts 2 are threadedly connected to the upper surface of the mounting plate 5. Fixing bolt slots 9 are opened inside the two T-shaped slots 8. The cable joint temperature monitor 3 is equipped with a control panel 6. The ends of the two fixing bolts 2 near the fixing bolt slots 9 are threaded into the interior of the T-shaped slots 8 and are respectively threadedly connected to the interior of the corresponding fixing bolt slots 9. A detection head 4 is installed at one end of the cable joint temperature monitor 3. The detection head 4 is electrically connected to the cable joint temperature monitor 3. The control panel 6 is electrically connected to the cable joint temperature monitor 3.

[0035] Furthermore, when using this device, it is started by connecting to an external power source. When using the distribution cabinet cable connector overheat detection device, first place the device in a suitable position using the mounting base 1. The mounting plate 5 is placed on the upper surface of the sliding mounting plate 7 by sliding engagement between the T-shaped block 10 on its lower surface and the T-shaped block groove 8 on the sliding mounting plate 7. Then, use fixing bolts 2 to pass through the mounting plate 5 and threadedly connect it to the fixing bolt groove 9 in the T-shaped block groove 8 to firmly fix the mounting plate 5. When the distribution cabinet vibrates during operation, the vibration is transmitted to the mounting base 1, which in turn drives the sliding mounting plate 7 to move. At this time, the three dampers 14 play a role in converting the kinetic energy generated by the vibration of the sliding mounting plate 7 into heat energy, effectively reducing the vibration amplitude. At the same time, the two "Z"-shaped fixing brackets 11 slide on the first fixing rod 12, and the first buffer spring 13 is compressed or extended to absorb the vibration. To release energy and further reduce vibration, the protrusions on the outer wall of the sliding mounting plate 7 slide on the second fixed rod 15. The second buffer spring 16 also assists in shock absorption through compression and extension. Through the coordinated work of these components, the impact of vibration on the equipment is effectively reduced, ensuring stable operation of the equipment. During stable operation of the equipment, the detection head 4 detects the temperature of the cable joint in real time and transmits the temperature data to the cable joint temperature monitor 3. The cable joint temperature monitor 3 processes and analyzes the temperature data. When the cable joint temperature exceeds the preset threshold, an overheat alarm signal is issued through the control panel 6 to remind the operator to handle it in time and avoid safety accidents caused by overheating of the cable joint. The operator can also set relevant parameters for temperature monitoring and view historical temperature data through the control panel 6 to achieve effective monitoring and management of the cable joint temperature.

[0036] When the distribution cabinet in the vibration damping device vibrates during operation, the vibration is transmitted to the mounting base 1, which in turn drives the sliding mounting plate 7 to move. At this time, the three dampers 14 play a role in converting the kinetic energy generated by the vibration of the sliding mounting plate 7 into heat energy, effectively reducing the vibration amplitude. At the same time, the two "Z"-shaped fixed brackets 11 slide on the first fixed rod 12, and the first buffer spring 13 is compressed or extended to absorb and release energy, further reducing the vibration. The protrusion on the outer wall of the sliding mounting plate 7 slides on the second fixed rod 15, and the second buffer spring 16 also assists in vibration damping through compression and extension. Through the coordinated work of these components, the impact of vibration on the equipment is effectively reduced, ensuring the stable operation of the equipment. In this way, during the stable operation of the equipment, the accuracy of the test is effectively improved, and the practicality of the equipment is also improved.

[0037] Structural Description: Mounting Base 1: This is the fundamental support component of the entire equipment, providing a stable mounting platform for other structures. It contains multiple internal structures for mounting shock-absorbing devices. The upper internal design features a sliding structure adapted to the sliding mounting plate 7, allowing the plate 7 to slide within it. Simultaneously, the inner wall of the mounting base 1 has grooves for fixing the second fixing rod 15, and the first fixing rod 12 is internally fixedly connected, providing mounting and support points for the buffer springs and fixed brackets in the shock-absorbing device.

[0038] Sliding mounting plate 7: Its outer wall is slidably connected to the upper interior of the mounting base 1. It is a key moving part of the shock absorption device. Its lower surface is connected to three dampers 14. The dampers 14 absorb vibration energy. The four protrusions on the outer wall are slidably connected to the second fixing rod 15 in the groove of the inner wall of the mounting base 1. The two ends of the second buffer spring 16 sleeved on the outer wall of the second fixing rod 15 are fixed to the mounting base 1 and the sliding mounting plate 7 respectively, playing a buffering and resetting role. Two T-shaped block grooves 8 are opened on the upper surface to cooperate with the T-shaped block 10 on the lower surface of the mounting plate 5 to realize the installation and fixation of the mounting plate 5.

[0039] Fixed bracket 11: Both fixed brackets 11 are Z-shaped and are slidably connected to the outer wall of the first fixed rod 12 inside the mounting base 1. They can slide along the first fixed rod 12. The two ends of the first buffer spring 13 sleeved on the outer wall of the first fixed rod 12 are fixed to the inner wall of the mounting base 1 and the outer wall of the fixed bracket 11, respectively. When the equipment is vibrated, the fixed bracket 11 plays a shock absorption role through sliding and compression and rebound of the first buffer spring 13, limiting the excessive shaking of the sliding mounting plate 7.

[0040] Dampers 14: All three dampers 14 are installed inside the mounting base 1. The end of the damper away from the mounting base 1 is fixedly connected to the lower surface of the sliding mounting plate 7. The damper 14 can convert the kinetic energy generated when the equipment is subjected to vibration into heat energy and dissipate it, effectively reducing the vibration amplitude and improving the stability of the equipment operation.

[0041] First fixed rod 12 and first buffer spring 13: Two first fixed rods 12 are fixedly connected inside the mounting base 1 to provide a sliding track for the fixed bracket 11. The first buffer spring 13 is sleeved on the outer wall of the first fixed rod 12, and its two ends are fixed to the inner wall of the mounting base 1 and the outer wall of the fixed bracket 11 respectively. When the equipment vibrates, the energy is absorbed and released through the compression and extension of the spring, thus slowing down the transmission of vibration.

[0042] The second fixed rod 15 and the second buffer spring 16: The second fixed rod 15 is fixedly connected to the four grooves inside the inner wall of the mounting base 1. The four protrusions on the outer wall of the sliding mounting plate 7 are slidably connected to the outer wall of the second fixed rod 15. The second buffer spring 16 is sleeved on the outer wall of the second fixed rod 15, and its two ends are fixed to the inner wall of the grooves in the inner wall of the mounting base 1 and the outer wall of the protrusions on the sliding mounting plate 7, respectively, to further enhance the shock absorption effect and ensure that the sliding mounting plate 7 can move smoothly and return to its original position when vibrating.

[0043] Mounting plate 5 and cable connector temperature monitor 3: Two T-blocks 10 are fixedly connected to the lower surface. The T-blocks 10 are slidably connected to the T-block groove 8 on the sliding mounting plate 7 to realize the installation and positioning of the mounting plate 5 on the sliding mounting plate 7. The upper surface is used to install the cable connector temperature monitor 3 and is threaded with two fixing bolts 2. The fixing bolts 2 are threadedly connected to the fixing bolt groove 9 inside the T-block groove 8 to firmly fix the mounting plate 5 on the sliding mounting plate 7.

[0044] Cable joint temperature monitor 3: Fixedly installed on the upper surface of the mounting plate 5, it is the core component of the equipment to realize cable joint overheat detection. One end is equipped with a detection head 4, which is electrically connected to the cable joint temperature monitor 3 for detecting the temperature of the cable joint. The upper surface is equipped with a control panel 6, which is electrically connected to the cable joint temperature monitor 3. Operators can set detection parameters, view detection data and receive overheat alarm information through the control panel 6.

[0045] Fixing bolt 2: Two fixing bolts 2 are threadedly connected to the mounting plate 5. The thread of one end of the fixing bolt 2 near the fixing bolt groove 9 extends into the interior of the T-shaped block groove 8 and is threadedly connected to the interior of the fixing bolt groove 9. This is used to fix the mounting plate 5 onto the sliding mounting plate 7 to ensure the stability of the equipment structure.

[0046] Detection head 4: Installed at one end of the cable joint temperature monitor 3, electrically connected to the cable joint temperature monitor 3, directly in contact with or close to the cable joint, to collect the temperature data of the cable joint in real time, and transmit the data to the cable joint temperature monitor 3 for processing;

[0047] Control Panel 6: Installed on the upper surface of the cable joint temperature monitor 3 and electrically connected to the cable joint temperature monitor 3, it is an important human-machine interface. Operators can operate and monitor the equipment through the control panel 6.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for detecting overheating of cable joints in a power distribution cabinet, comprising a mounting base (1), a mounting plate (5), and a cable joint temperature monitor (3), characterized in that: The mounting base (1) is equipped with a shock absorption device; The damping device includes a sliding mounting plate (7), two fixed brackets (11) and three dampers (14). The outer wall of the sliding mounting plate (7) is slidably connected to the upper end of the mounting base (1). The three dampers (14) are all installed inside the mounting base (1). The mounting base (1) has two first fixed rods (12) fixedly connected inside. Among them, the outer walls of the two first fixing rods (12) are fitted with first buffer springs (13), and the four grooves on the inner wall of the mounting base (1) are fixedly connected with second fixing rods (15), and the outer walls of the four second fixing rods (15) are fitted with second buffer springs (16).

2. The overheat detection device for cable joints in a power distribution cabinet according to claim 1, characterized in that: Both of the fixed brackets (11) are Z-shaped, and the two fixed brackets (11) are slidably connected to the outer wall of the corresponding first fixed rod (12); The two ends of the two first buffer springs (13) are fixedly connected to the inner wall of the corresponding mounting base (1) and the outer wall of the fixed bracket (11), respectively.

3. The overheat detection device for cable joints in a power distribution cabinet according to claim 1, characterized in that: The ends of the three dampers (14) away from the mounting base (1) are all fixedly connected to the lower surface of the sliding mounting plate (7), and the four protrusions on the outer wall of the sliding mounting plate (7) are slidably connected to the outer wall of the corresponding second fixing rod (15); Among them, the two ends of the four second buffer springs (16) are fixedly connected to the inner walls of the four grooves on the inner wall of the mounting base (1) and the outer walls of the four protrusions on the sliding mounting plate (7).

4. The overheat detection device for cable joints in a power distribution cabinet according to claim 1, characterized in that: The upper surface of the sliding mounting plate (7) has two T-shaped block grooves (8), and the lower surface of the mounting plate (5) has two T-shaped blocks (10) fixedly connected. Among them, the outer walls of the two T-blocks (10) are slidably connected to the interior of the corresponding T-block groove (8), and the cable connector temperature monitor (3) is fixedly installed on the upper surface of the mounting plate (5).

5. The overheat detection device for cable joints in a power distribution cabinet according to claim 1, characterized in that: The mounting plate (5) has two fixing bolts (2) threadedly connected to its upper surface; Among them, the interior of the two T-shaped block grooves (8) is provided with fixing bolt grooves (9), and the control panel (6) is installed on the cable joint temperature monitoring instrument (3).

6. The overheat detection device for cable joints in a power distribution cabinet according to claim 5, characterized in that: The ends of the two fixing bolts (2) near the fixing bolt groove (9) are threaded into the interior of the T-shaped block groove (8) and respectively connected to the internal threads of the corresponding fixing bolt groove (9). A detection head (4) is installed at one end of the cable connector temperature monitor (3). The detection head (4) is electrically connected to the cable joint temperature monitor (3), and the control panel (6) is electrically connected to the cable joint temperature monitor (3).

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