Communication system power supply abnormity detection equipment

Abstract

The invention provides communication system power supply abnormity detection equipment, and belongs to the power supply detection equipment technology, a monitoring part of a voltage detection assembly comprises an electromagnet, a sticky magnet, a sliding seat, an indicating rod and an observation cover, the electromagnet is connected with a power supply to be detected, an insulating guide column is horizontally fixed at one end of the electromagnet, and the sliding seat is axially and slidably mounted on the insulating guide column; the end, facing the electromagnet, of the sliding base is fixedly provided with a sticky magnet, the other end of the sliding base is fixedly provided with an indicating rod, one end of the indicating rod stretches into a fixedly-arranged observation cover, a pointer is fixed, the indicating rod is in axial sliding fit with the observation cover, the observation cover is made of transparent materials, and the surface of the observation cover is provided with a plurality of scale marks. The end portion of the insulation guide column and the end face of the observation cover are coaxially and fixedly connected into a whole. According to the method, qualitative judgment on the output voltage and the working temperature of the power supply of the communication system is visually carried out through a simple and effective means, and whether the working state of the power supply is normal or not is accurately and rapidly obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of power failure detection, and more specifically to a communication system power failure detection device. Background Art

[0002] Modern communication networks are highly dependent on power supply. Any power supply problem may cause service interruption, resulting in huge economic losses and social impact. Traditional communication system power supply anomaly detection usually relies on safety thresholds set by manual experience. As for the power supply detection of communication systems, the main difference between it and general power supply is that output voltage and temperature are the main indicators, because unstable output voltage will directly lead to unstable signals or unstable networks, and excessively high temperatures will greatly reduce the working performance of the corresponding communication equipment or communication modules, and even cause direct downtime in severe cases.

[0003] At present, when detecting power anomalies in communication systems, two of the main detections are output voltage detection and operating temperature detection of power supply equipment. Based on this, existing detection methods are all direct quantitative detection, that is, obtaining specific indicator values ​​to compare with set thresholds, which itself requires accurate detection of specific values.

[0004] However, many occasions are still heavily dependent on manual operation by inspectors. For example, inspectors need to use a multimeter to detect the voltage at the output end of a power supply device or a power module. That is, after connecting the power supply to the device, the multimeter is used to measure the output port voltage. Although the operation is simple, it is also cumbersome. In particular, there are often many power modules or power supply devices in a communication system. It is very inconvenient to manually check them one by one. Moreover, manual inspection is seriously affected by the experience of inspectors. On the other hand, the inspection efficiency is extremely low and there are safety hazards.

[0005] Therefore, based on the development of information technology, some automatic detection equipment has also been born, which mainly sets the temperature sensor and voltage detection circuit in a set of equipment. This kind of automated equipment is relatively expensive and needs to be equipped with a special numerical analysis and comparison system to determine the relationship between the detection value and the threshold. However, the above-mentioned problem still exists, that is, the judgment result always depends on a specific detection value in actual use, and the judgment accuracy and speed are directly subject to the accuracy of this value.

[0006] Therefore, the applicant believes that it is necessary to design a special simple detection device to better solve the problem that it is difficult for users to intuitively and accurately judge whether the power supply is abnormal, resulting in the inability to respond and handle the power supply abnormality in a timely manner, affecting the stability and reliability of the communication system. Summary of the invention

[0007] In view of the technical status mentioned in the background technology, in order to overcome the corresponding defects in the prior art, the present invention particularly discloses a communication system power supply anomaly detection device, which can better solve the problems raised in the above background technology.

[0008] In order to overcome the defects of the prior art, those skilled in the art provide the following technical solutions: a communication system power supply anomaly detection device, comprising a temperature detection component and a voltage detection component, wherein the temperature detection component is used to detect the temperature of the power module, and the voltage detection component is a monitoring component for judging whether the power supply voltage is normal, and the monitoring component comprises an electromagnet, a sticky magnet, a sliding seat, an indicator rod and an observation cover, wherein the electromagnet is connected to the power supply to be tested, an insulating guide column is horizontally fixed to one end of the electromagnet, the sliding seat is axially slidably mounted on the insulating guide column, the sticky magnet is fixed to one end of the sliding seat toward the electromagnet, and the indicator rod is fixed to the other end of the sliding seat, one end of the indicator rod extends into the fixed observation cover and a pointer is fixed, the indicator rod is axially slidably matched with the observation cover, the observation cover is made of a transparent material, and a plurality of scale lines are provided on the surface, and the end of the insulating guide column is coaxially fixed to the end face of the observation cover as a whole.

[0009] Furthermore, the sticky magnet is a metal ring, the sliding seat is made of insulating material and is coaxially fixed to the metal ring, a plurality of indicator rods are provided and are arranged in an axial ring array around the sliding seat, the scale lines are coaxially provided with a plurality of circles on the outer wall of the observation cover, and the tips of all pointers point to the scale lines.

[0010] Furthermore, both ends of the observation cover are closed, and a resistance spring is coaxially sleeved on the insulating guide column between the sliding seat and the observation cover. When the voltage of the power supply is the normal working voltage, the axial thrust of the electromagnet on the annual magnet makes the pointers on all the indicator rods point to the zero scale line, and the zero scale line is the centralmost circle of all the scale coils.

[0011] Furthermore, the temperature detection component is a monitoring device for determining whether the temperature exceeds a set value, and the monitoring device includes a thermal cylinder, an insulating tube, an expansion ball, a first conductive element, and a second conductive element, wherein: The thermosensitive cylinder body is a cylinder body structure that can conduct heat. The insulating tube is vertically fixed on the top port of the thermosensitive cylinder body. The expansion ball is made of elastic material. The air inlet of the expansion ball is fixed at the bottom port of the insulating tube. The wall thickness of the closed end of the expansion ball facing the air inlet is thinner than the wall thickness of the rest of the part, and the closer to the center of the closed end, the thinner the wall thickness; the first conductive element is hingedly mounted on the inner wall of the insulating tube above the closed end. When the expansion ball expands, the closed end pushes the first conductive element to flip upward and contact with the second conductive element, so that a buzzer alarm circuit where the two conductive elements are located is closed.

[0012] Furthermore, raised heat-conducting elements are provided on the inner side wall and the outer side wall of the thermal cylinder body, and the heat-conducting elements are regular hexagonal pyramid structures with the small ends facing away from the thermal cylinder body.

[0013] Furthermore, the expansion ball is a cylindrical elastic structure, and the bottom end of the expansion ball has a reduced neck, which is fitted in a mounting ring, and the mounting ring is coaxially fixed in the insulation tube, and the bottom end surface of the expansion ball is axially compressed by a clamping screw plug that is threadedly mounted on the top port of the thermal cylinder body, and the nut of the clamping screw plug and the optical axis section between the nut and the threaded section are both provided with an air inlet hole.

[0014] Furthermore, the first conductive element is an arc-shaped plate-like structure with a downwardly concave bottom, and the thickness gradually becomes thinner in the direction from the hinged end of the first conductive element on the inner wall of the insulating tube to the other end; the second conductive element includes a conductive bolt horizontally arranged in the insulating tube, and the curved surface of the ball nut of the conductive bolt is used to contact the thin end of the upturned first conductive element.

[0015] Furthermore, a guide rod fixed in the heat-insulating tube is horizontally provided above the conductive bolt, and the guide rod is slidably connected with the upper side of the ball nut at the edge thereof; A threaded sleeve is rotatably installed in the side wall of one side of the insulation tube. A port of the threaded sleeve extends into the insulation tube and is threadedly connected to the conductive bolt, and the other end of the threaded sleeve is integrally fixed with a limit block. The limit block is used to contact the outer wall of the insulation tube. When the limit block is pressed and rotated, the rotation of the threaded sleeve causes the conductive bolt to move axially.

[0016] Furthermore, a rotating disk is coaxially fixed at the end of the limit block through a connecting column, and a mounting cylinder fixed on the outer wall of the insulation pipe is coaxially provided on the outer side of the limit block, and the outer wall of the mounting cylinder has a thread; It also includes a locking sleeve, which is covered on the installation tube and threadedly sleeved therewith. When the locking sleeve is tightened, it can be pressed and contacted with the annular step surface formed by the limit block and the connecting column to fix the limit block.

[0017] Furthermore, an elastic pad is provided between the locking sleeve and the insulating tube, and the elastic pad is provided on the outside of the mounting tube; a limiting rod fixed to the insulating tube is provided outside the elastic pad, and the end of the limiting rod extends into an arc-shaped groove on the locking sleeve, and when the locking sleeve is in compression contact with the annular step surface, the end of the limiting rod is located at one end of the arc-shaped groove, and when the locking sleeve is rotated so that the end of the limiting rod is located at the other end of the arc-shaped groove, the locking sleeve is completely separated from the annular step surface.

[0018] Compared with the prior art, the beneficial effect of the present invention is that the present invention is based on the starting point that it is not necessary to directly detect the real voltage value and temperature value, so as to avoid the error that may be caused by the inaccurate detection of the temperature value and voltage value. The present invention is designed based on the fact that the working performance of the power supply of the communication system is mainly affected by the two factors of voltage and temperature. Unlike the traditional detection equipment, the actual voltage value and temperature value of the power supply equipment are obtained in real time. Instead, the temperature exceeds the normal value, causing the gas in the expansion ball to expand, which then causes the buzzer alarm circuit to close and alarm to intuitively obtain the temperature state of the power module; at the same time, the voltage of the electromagnet consistent with the voltage at both ends of the communication system is used to indirectly detect whether the output voltage of the power supply equipment or module is within the set value. If it is not within the set value, it will inevitably cause the displacement of the electromagnet pushing the indicator rod to change. Through the position of the pointer on the indicator rod, it can be intuitively judged whether the voltage is normal.

[0019] It can be seen that the present invention triggers corresponding objective physical actions to make qualitative judgments on power supply equipment failures when different influencing factors exceed set conditions. This is very accurate, rapid and reliable.

[0020] Other functions and features of the present invention will be specifically introduced in the subsequent embodiments to provide a full understanding of the concept of the present invention and thus to be specifically applied to production practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a monitoring component used for voltage monitoring in the present invention; Figure 2 It is a schematic diagram of the structure of the monitoring device used for temperature monitoring in the present invention; Figure 3 It is a partial enlarged picture of the surface of the thermal cylinder body; Figure 4 It is a structural diagram of the heat insulation pipe in the present invention; Figure 5 for Figure 4 Right side view of the locking sleeve in.

[0022] As shown in the figure, electromagnet 1, sticky magnet 2, sliding seat 3, indicator rod 4, resistance spring 5, observation cover 6, pointer 7, insulating guide column 8, scale line 9, thermal cylinder 10, insulation tube 11, expansion ball 12, heat-conducting element 13, mounting ring 14, clamping screw 15, air inlet 16, first conductive element 17, second conductive element 18, guide rod 19, threaded sleeve 20, limit block 21, mounting tube 22, connecting column 23, rotating disk 24, locking sleeve 25, arc groove 2501, limit rod 26, elastic pad 27. DETAILED DESCRIPTION

[0023] Based on the several drawings in the embodiments of the present invention and referring to the following text description, a relatively clear and complete introduction of the technical scheme in the embodiments of the present invention can be made. However, it should be understood that the embodiments mentioned in this article are only one or several specific methods of the present invention, and not all implementation structures or method steps.

[0024] like Figure 1 As shown, one of the communication system power supply anomaly detection devices of the present invention has a specific implementation structure, including a temperature detection component and a voltage detection component. The temperature detection component is used to detect the temperature of the power module, while the voltage detection component is different. It does not directly measure the working voltage of the power module, but selects a monitoring component to determine whether the power supply voltage is normal for indirect detection. Specifically, the monitoring component includes an electromagnet 1, a sticky magnet 2, a sliding seat 3, an indicator rod 4 and an observation cover 6, that is, the electromagnet 1 is connected to the power supply to be tested, so that the power supply to be tested supplies power to the electromagnet 1 with the working voltage, and can be connected in parallel to the communication system equipment so that its voltage is consistent with the voltage received by the communication system. The set magnetic force of the electromagnet 1 represents that it obtains the rated voltage that the power supply should have for supplying power to the communication system. In more detail, an insulating guide column 8 is horizontally fixed at one end of the electromagnet 1, and a sliding seat 3 is axially slidably installed on the insulating guide column 8. At the end of the sliding seat 3 facing the electromagnet 1, a sticky magnet 2 is fixed. The so-called sticky magnet 2 refers to the one that can be pushed by the magnetic force of the electromagnet 1. Continue to refer to Figure 1 , the other end of the insulating guide column 8 mentioned above is fixed with an indicator rod 4, one end of the indicator rod 4 is extended into a fixed observation cover 6, the observation cover 6 can be fixedly installed on the corresponding equipment or even on the ground, and then a pointer 7 is fixed on the end of the indicator rod 4, the indicator rod 4 and the observation cover 6 are axially slidably matched, and the observation cover 6 used is made of a transparent material, such as an acrylic plate, and a plurality of scale lines 9 are provided on the surface, the end of the insulating guide column 8 is coaxially fixed to the end face of the observation cover 6 as a whole, and then the above series of components are installed together. During operation, if the power supply voltage is at a normal value, the magnetic force of the corresponding electromagnet 1 will push the sticky magnet 2 and the sliding seat 3, as well as the indicator rod 4 to the reference scale facing the pointer 7. At this reference scale, it means that the rated power supply voltage of the communication system is normal, so monitoring is more intuitive, and there is no need to accurately measure the specific value of the voltage, which is simpler and more direct.

[0025] In practice, Figure 1, the sticky magnet 2 is a metal ring, the sliding seat 3 is made of insulating material, and is coaxially fixed to the metal ring to install the metal ring. At the same time, there are several indicating rods 4, which are arranged in an axial annular array around the sliding seat 3. The scale line 9 is coaxially arranged on the outer wall of the observation cover 6. The tips of all pointers 7 point to the scale line 9, so that no matter from which direction, the position of the pointer 7 can be clearly seen, and then it is known whether the voltage of the power supply is at a normal value at this time. When making it specifically, both ends of the observation cover 6 are closed, and a resisting spring 5 is coaxially sleeved on the insulating guide column 8 between the sliding seat 3 and the observation cover 6. When the voltage of the power supply is the normal working voltage, the axial thrust of the electromagnet 1 on the annual magnet is sufficient to make the pointers 7 on all the indicating rods 4 point to the zero scale line 9 (that is, as the above-mentioned reference scale line 9), and this zero scale line 9 is selected as the most central circle among all the scale lines 9 circles, so that the amplitude of the voltage being too high or too low can be intuitively displayed by the distance away from the zero scale line 9.

[0026] As another specific embodiment, the temperature detection component is also a monitoring device for determining whether the temperature exceeds a set value, that is, it does not directly detect a specific temperature value. Specifically, Figure 2 and Figure 4 As shown, the monitoring device includes a thermal cylinder 10, an insulating tube 11, an expansion ball 12, a first conductive element 17 and a second conductive element 18, wherein the thermal cylinder 10 is a cylinder structure capable of conducting heat, and has excellent thermal conductivity. By placing it at the position corresponding to the power module, the heat emitted by the power module can be transferred out in time, and then transferred to the gas in the thermal cylinder 10, causing the gas to expand rapidly. At the same time, the insulating tube 11 is vertically fixed to the top port of the thermal cylinder 10, the expansion ball 12 is made of elastic material, the air inlet of the expansion ball 12 is fixed at the bottom port of the insulating tube 11, and the wall thickness of the closed end of the expansion ball 12 facing the air inlet of the device needs to be thinner than the wall thickness of the rest of the parts, and the closer to the center of the closed end, the thinner the wall thickness, so that when the gas in the thermal cylinder 10 expands, it can enter the expansion ball 12 through the narrow insulating tube 11, causing the expansion ball 12 to expand significantly, and then causing the closed end to expand rapidly. In addition, the first conductive element 17 is hingedly mounted on the inner wall of the insulating tube 11 above the closed end. When the expansion ball 12 expands, the rapidly expanding closed end will push the first conductive element 17 to flip upward, thereby contacting the second conductive element 18, so that a buzzer alarm circuit where the two conductive elements are located is closed, that is, the two conductive elements are actually the two ends of a disconnection in the buzzer alarm circuit. Once they are in contact with each other, the circuit is closed and the alarm starts.

[0027] In order to improve the sensitivity to temperature changes, a raised heat-conducting element 13 may be provided on both the inner and outer walls of the heat-sensitive cylinder 10, and the heat-conducting element 13 may be provided on the inner and outer walls of the heat-sensitive cylinder 10. Figure 3As shown, they are all regular hexagonal pyramid structures with the small end facing away from the thermal cylinder 10, which can greatly increase the contact area, transfer the heat emitted by the power module to the thermal cylinder 10, and then cause the expansion ball 12 to expand, giving an early warning. Figure 4 , the expansion ball 12 can be made into a cylindrical elastic structure, the bottom end of the expansion ball 12 has a reduced neck, the neck is fitted in a mounting ring 14, the mounting ring 14 is coaxially fixed in the thermal insulation tube 11, the bottom end surface of the expansion ball 12 is axially compressed by a compression screw plug 15 installed in a threaded manner at the top port of the thermal cylinder body 10, and then the expansion ball 12 is fixed in the thermal insulation tube 11. In practice, the nut of the compression screw plug 15 and the optical axis section between the nut and the threaded section are processed with an air inlet hole 16, so that when the gas in the thermal cylinder body 10 expands, it can quickly enter the expansion ball 12 through the air inlet hole 16.

[0028] In order to facilitate contact between two conductive elements, such as Figure 4 As shown, the first conductive element 17 is an arc-shaped plate-like structure with a bottom concave downward, and the thickness gradually becomes thinner from the hinged end of the first conductive element 17 on the inner wall of the insulation tube 11 to the other end, so that the first conductive element 17 can be lifted more easily when the closed end of the expansion ball 12 expands. In addition, the second conductive element 18 includes a conductive bolt horizontally arranged in the insulation tube 11, and the curved surface of the ball nut of the conductive bolt is used to contact the thin end of the turned-up first conductive element 17 to conduct the above-mentioned circuit. In particular, a guide rod 19 fixed in the insulation tube 11 is also horizontally arranged above the conductive bolt, and the guide rod 19 is connected to the upper side of the ball nut at the edge in a horizontal sliding penetration form, thereby limiting the conductive bolt from rotating. At the same time, a threaded sleeve 20 is rotatably installed in the side wall of one side of the insulating tube 11. The threaded sleeve 20 extends into a port in the insulating tube 11 and is threadedly connected with a conductive bolt, and the other end thereof is integrally fixed with a limit block 21. The limit block 21 is used to contact the outer wall of the insulating tube 11. When in use, the limit block 21 can be slightly pressed and rotated at the same time to make the threaded sleeve 20 rotate in place. Then, under the guidance of the above-mentioned guide rod 19, the conductive bolt can be moved axially to change its contact position with the first conductive element 17, thereby realizing the setting of alarms for different temperatures.

[0029] Specifically, if Figure 4As shown, a rotating disk 24 is coaxially fixed to the end of the limit block 21 through a connecting column 23. By holding the rotating disk 24 and rotating it, the limit block 21 and the threaded sleeve 20 can be rotated. On the outside of the limit block 21, there is also a mounting cylinder 22 coaxially fixed to the outer wall of the insulation pipe 11, and the outer wall of the mounting cylinder 22 is processed with threads. Correspondingly, a locking sleeve 25 is also included. This locking sleeve 25 covers the mounting cylinder 22 and is connected to the threaded sleeve 20. When the locking sleeve 25 is tightened, as shown in FIG. Figure 4 As shown, the inner bottom of the locking sleeve 25 can be squeezed into contact with the annular step surface formed by the limit block 21 and the connecting column 23, so as to fix the limit block 21 and prevent the temperature alarm function from being affected due to accidental misrotation of the threaded sleeve 20 after the above-mentioned conductive bolt is adjusted into place.

[0030] Based on the above implementation structure, Figure 4 As shown, an elastic pad 27 may be provided between the locking sleeve 25 and the insulating tube 11. The elastic pad 27 is annular and is sleeved outside the mounting tube 22 and is in extrusion contact with the end face of the locking sleeve 25. In addition, a limit rod 26 fixed to the insulating tube 11 must be provided outside the elastic pad 27. The limit rod 26 is fixed to the outer wall of the insulating tube 11, and the end of the limit rod 26 extends into an arc groove 2501 on the locking sleeve 25. The structure of the arc groove 2501 is as shown in FIG. Figure 5 In use, when the locking sleeve 25 is in compression contact with the annular step surface, the end of the limiting rod 26 is located at one end of the arc groove 2501 (hereinafter referred to as the fixed end), and the locking sleeve 25 cannot be tightened at this time, indicating that the locking degree of the locking sleeve 25 on the limiting block 21 has reached the required level. When the locking sleeve 25 is rotated so that the end of the limiting rod 26 is located at the other end of the arc groove 2501, on the one hand, the elastic pad 27 is released to a certain extent, and on the other hand, the locking sleeve 25 is completely separated from the annular step surface, so that the limiting block 21 is in a relatively free state, and the limiting block 21 can be easily rotated to adjust the position of the conductive bolt. When the adjustment is in place, the locking sleeve 25 is tightened clockwise, and when the end of the limiting rod 26 is located at the fixed end of the arc groove 2501, it is proved that the threaded sleeve 20 has been firmly fixed.

[0031] The present invention is not limited to the field involved in this implementation case, and some well-known structures or principles are not further described. However, ordinary technicians in the relevant field can theoretically know all the well-known technologies in this technical field before the application date or priority date, can fully master all the existing technologies in this technical field, and have the means and ability to apply these existing technologies for actual design and application. Under the technical enlightenment given by this application, technicians can improve and implement the present invention more comprehensively in combination with their own abilities. In addition, it should be pointed out that although the text and graphics of the above embodiments have shown the specific implementation occasions of the present invention, for ordinary technicians in this field, it is entirely possible to carry out a variety of obvious expansions and extensions on these embodiments without departing from the design concept of the present invention to form different embodiments, but this does not affect the scope of protection of the present invention, which is covered and embodied by the technical features of the claims and equivalent technical features.

Claims

1. A communication system power supply anomaly detection device, comprising a temperature detection component and a voltage detection component, characterized in that: The temperature detection component is used to detect the temperature of the power module, and the voltage detection component is a monitoring component for judging whether the power supply voltage is normal. The monitoring component comprises an electromagnet (1), a sticky magnet (2), a sliding seat (3), an indicator rod (4) and an observation cover (6), wherein the electromagnet (1) is connected to the power supply to be tested, an insulating guide column (8) is horizontally fixed at one end of the electromagnet (1), the sliding seat (3) is axially slidably mounted on the insulating guide column (8), the sticky magnet (2) is fixed to one end of the sliding seat (3) toward the electromagnet (1), and the indicator rod (4) is fixed to the other end of the sliding seat, one end of the indicator rod (4) extends into the fixed observation cover (6) and is fixed with a pointer (7), the indicator rod (4) and the observation cover (6) are axially slidably matched, the observation cover (6) is made of a transparent material and has a plurality of scale lines (9) on its surface, and the end of the insulating guide column (8) is coaxially fixed to the end face of the observation cover (6) as a whole.

2. A communication system power supply anomaly detection device according to claim 1, characterized in that: The sticky magnet (2) is a metal ring, the sliding seat (3) is made of insulating material and is coaxially fixed to the metal ring, a plurality of indicating rods (4) are provided and arranged in an axial ring array around the sliding seat (3), a plurality of scale lines (9) are coaxially provided on the outer wall of the observation cover (6), and the tips of all the pointers (7) point to the scale lines (9).

3. A communication system power supply anomaly detection device according to claim 2, characterized in that: Both ends of the observation cover (6) are closed, and a resistance spring (5) is coaxially sleeved on the insulating guide column (8) between the sliding seat (3) and the observation cover (6). When the voltage of the power supply is the normal working voltage, the axial thrust of the electromagnet (1) on the annual magnet causes the pointers (7) on all the indicator rods (4) to point to the zero scale line (9), and the zero scale line (9) is the most central circle among all the scale lines (9).

4. A communication system power supply anomaly detection device according to claim 1, characterized in that: The temperature detection assembly is a monitoring device for determining whether the temperature exceeds a set value, and the monitoring device comprises a thermal cylinder (10), an insulating tube (11), an expansion ball (12), a first conductive element (17) and a second conductive element (18), wherein: The thermosensitive cylinder (10) is a cylinder structure capable of conducting heat. The heat-insulating tube (11) is vertically fixed to the top end of the thermosensitive cylinder (10). The expansion ball (12) is made of elastic material. The air inlet of the expansion ball (12) is fixed to the bottom end of the heat-insulating tube (11). The wall thickness of the closed end of the expansion ball (12) facing the air inlet is thinner than the wall thickness of the remaining parts, and the wall thickness is thinner toward the center of the closed end. The first conductive element (17) is hingedly mounted on the inner wall of the heat-insulating tube (11) above the closed end. When the expansion ball (12) expands, the closed end pushes the first conductive element (17) to flip upward and contact with the second conductive element (18), so that a buzzer alarm circuit where the two conductive elements are located is closed.

5. A communication system power supply anomaly detection device according to claim 4, characterized in that: A protruding heat-conducting element (13) is provided on both the inner side wall and the outer side wall of the heat-sensitive cylinder body (10), and the heat-conducting element (13) is a regular hexagonal pyramid structure with a small end facing away from the heat-sensitive cylinder body (10).

6. A communication system power supply anomaly detection device according to claim 4, characterized in that: The expansion ball (12) is a cylindrical elastic structure. The bottom end of the expansion ball (12) has a reduced neck, which is fitted in a mounting ring (14). The mounting ring (14) is coaxially fixed in the insulation tube (11). The bottom end surface of the expansion ball (12) is axially compressed by a compression screw plug (15) which is threadedly mounted on the top port of the thermal cylinder body (10). The nut of the compression screw plug (15) and the optical axis section between the nut and the threaded section are both provided with an air inlet hole (16).

7. A communication system power supply anomaly detection device according to claim 4, characterized in that: The first conductive element (17) is an arc-shaped plate-like structure with a bottom that is concave downwards, and the thickness gradually becomes thinner in the direction from the hinged end of the first conductive element (17) on the inner wall of the insulating tube (11) to the other end; the second conductive element (18) includes a conductive bolt horizontally arranged in the insulating tube (11), and the curved surface of the ball nut of the conductive bolt is used to contact the thin end of the upturned first conductive element (17).

8. A communication system power supply anomaly detection device according to claim 7, characterized in that: A guide rod (19) fixed in the heat-insulating tube (11) is also horizontally provided above the conductive bolt, and the guide rod (19) is slidably connected to the upper side of the ball nut at the edge thereof; A threaded sleeve (20) is rotatably mounted in the side wall of one side of the insulation tube (11); a port of the threaded sleeve (20) extends into the insulation tube (11) and is threadedly plugged into the conductive bolt; a limit block (21) is integrally fixed to the other end of the threaded sleeve; the limit block (21) is used to contact the outer wall of the insulation tube (11); when the limit block (21) is pressed and rotated, the rotation of the threaded sleeve (20) causes the conductive bolt to move axially.

9. A communication system power supply anomaly detection device according to claim 8, characterized in that: A rotating disk (24) is coaxially fixed to the end of the limit block (21) via a connecting column (23), and a mounting tube (22) is coaxially fixed to the outer wall of the thermal insulation pipe (11) on the outer side of the limit block (21), wherein the outer wall of the mounting tube (22) has threads; The invention also comprises a locking sleeve (25), which covers the installation tube (22) and is connected to the threaded sleeve (20). When the locking sleeve (25) is tightened, it can be pressed into contact with the annular step surface formed by the limit block (21) and the connecting column (23) to fix the limit block (21).

10. A communication system power supply anomaly detection device according to claim 9, characterized in that: An elastic pad (27) is also provided between the locking sleeve (25) and the insulating tube (11), and the elastic pad (27) is sleeved on the outside of the mounting tube (22); a limiting rod (26) fixed on the insulating tube (11) is also provided outside the elastic pad (27), and the end of the limiting rod (26) extends into an arc-shaped groove (2501) on the locking sleeve (25), and when the locking sleeve (25) is in compression contact with the annular step surface, the end of the limiting rod (26) is located at one end of the arc-shaped groove (2501), and when the locking sleeve (25) is rotated so that the end of the limiting rod (26) is located at the other end of the arc-shaped groove (2501), the locking sleeve (25) is completely separated from the annular step surface.

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