Power supply circuit short circuit overheating alarm device

Abstract

The utility model relates to the technical field of circuit monitoring alarm, in particular to a power supply circuit short circuit overheating alarm device which comprises an alarm base. An active motor; a reciprocating screw rod is arranged; a limiting base; a temperature sensor body; provided is an air-oil combined cooling device. According to the utility model, the driving motor drives the limiting base on the reciprocating screw rod to drive the temperature sensor body to perform mobile monitoring, thereby achieving the effect of timely monitoring the overheat temperature, avoiding the problem that the overheat temperature area is far away from the monitoring area and thus the alarm is not timely, and achieving the effect of timely alarm. Meanwhile, effective mobile monitoring is carried out only when the temperature is relatively high, so that the problem that a driving motor is ineffective to work at a low temperature is avoided, and the air-oil combined cooling device rapidly cools air by combining air cooling with oil cooling while mobile monitoring is carried out; the effects of carrying out mobile overheating early warning on the circuit area and carrying out cooling treatment on the overheating condition are achieved, the problem of short circuit caused by overheating of the circuit is reduced, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit monitoring and alarming, in particular to a short-circuit and overheating alarm device for a power supply circuit. Background Art

[0002] The alarm system usually uses an independent power supply, or is powered by a special branch of the mains power supply system. Due to the particularity of its power supply, once a circuit fault such as a short circuit occurs, it is very easy to cause damage to the electronic equipment in the alarm system. Short circuit failure is a common failure in the operation of electrical equipment, and it is also a common electrical failure in production and life. In order to minimize the occurrence of short circuit failures, short-circuit protection equipment is usually installed during the operation of electrical equipment.

[0003] The existing power supply circuit uses a temperature sensor to monitor the circuit in real time when preventing short circuit. By monitoring the temperature of the circuit, the circuit temperature can be prevented from overheating and overload causing short circuit. However, the existing temperature sensor adopts a fixed monitoring method, which can only provide overheating alarm for a large range of circuit temperatures. When the area is far away from the sensor, there will be a problem of overheating alarm delay because heat transfer takes time, which can easily lead to delays in alarm information and affect the safety of short circuit protection. In view of this, we propose a power supply circuit short circuit overheating alarm device. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a power supply circuit short circuit overheat alarm device, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a power supply circuit short circuit overheat alarm device, including an alarm base, an active motor is installed on the alarm base, a reciprocating screw is connected to the output shaft of the active motor, the surface of the reciprocating screw is slidably connected to a limited position base, a temperature sensor body is clamped on the limited position base, an air-oil combined cooling device is arranged at the end of the reciprocating screw, and a limited position guide rod is slidably connected inside the limited position base.

[0005] Preferably, the surface of the reciprocating screw rod is rotatably connected to the interior of the alarm base, and both ends of the limit guide rod are fixedly connected to the interior of the alarm base.

[0006] Preferably, a pressing plate is elastically connected to the interior of the temperature sensor body via a spring, clamping blocks are fixedly connected to both sides of the pressing plate, and a baffle is fixedly connected to the surface of the pressing plate.

[0007] Preferably, the surface of the pressing plate is slidably connected to the inside of the temperature sensor body, the surface of the clamping block is inserted into the inside of the limiting base, and the surface of the baffle is slidably connected to the inner wall of the limiting base.

[0008] Preferably, the wind-oil combined cooling device includes a driving gear disc and an oil cooling device, the interior of the driving gear disc is fixedly connected to the end of the reciprocating screw, the surface of the driving gear disc is meshed with an air-cooling gear, the interior of the air-cooling gear is fixedly connected to a roller, the surface of the roller is fixedly connected to a fan plate, and both ends of the roller are elastically connected to the interior of the alarm base through a torsion spring.

[0009] Preferably, the oil cooling device includes a connecting gear and an oil storage tank, the surface of the connecting gear meshes with the surface of the driving gear plate, the interior of the connecting gear is fixedly connected to a toothed belt roller, the toothed belt roller is transmission-connected to a connecting toothed belt, and the surface of the connecting toothed belt is fixedly connected to an oil-absorbing cotton cloth body.

[0010] Preferably, one end of the toothed belt roller is rotatably connected to the inside of the alarm base, the surface of the toothed belt roller is rotatably connected to the inside of the oil storage tank, and the surface of the oil storage tank is fixedly connected to the inside of the alarm base.

[0011] It can be seen from the above technical solutions that the power supply circuit short circuit overheat alarm device provided in the embodiments of this specification has at least the following beneficial effects:

[0012] (1) The utility model drives the temperature sensor body to perform mobile monitoring by an active motor to drive the reciprocating screw upper limit base. The temperature sensor can monitor the overheat temperature in time during the mobile monitoring. At the same time, the movable monitoring method can avoid the problem of delayed alarm due to the overheat temperature area being far away from the monitoring area, thereby improving the effect of the sensor in timely alarming the circuit over-condition. At the same time, effective mobile monitoring is only performed when the temperature is high, thereby avoiding the problem of ineffective operation of the active motor at low temperatures. The wind-oil combined cooling device uses wind cooling combined with oil cooling to quickly cool the air during mobile monitoring, thereby achieving the effect of the alarm base performing overheat warning on the circuit area while cooling the overheat condition, reducing the problem of short circuit due to overheating of the circuit, thereby improving the safety of the overall circuit use.

[0013] (2) The utility model presses the push plate, which is forced to move downward into the temperature sensor body. During the movement, the card block is driven to disengage from the card slot on the upper side of the inner wall of the limit base. After pressing the push plate, the temperature sensor body can be moved in the limit base, and direct disassembly can also be performed. Then, while achieving the effect of facilitating the adjustment of the position of the temperature sensor body, the sensor can be quickly and conveniently disassembled or installed.

[0014] (3) The utility model works by driving the toothed disc to rotate and meshing with the toothed belt roller on the gear to drive the oil-absorbing cotton cloth on the toothed belt. The oil-absorbing cotton cloth contacts the cooling oil inside the oil storage tank during transmission. After contact, a small amount of cooling oil is attached to the cloth and passes through the area where the fan plate stirs the airflow. Air cooling acts on the oil-absorbing cotton cloth with cooling oil, thereby achieving a rapid cooling effect. The air is cooled rapidly by combining air cooling with oil cooling, thereby achieving an effect in which the alarm base can provide a warning of overheating in the circuit area while cooling the overheated condition, thereby reducing the problem of short circuits due to overheating, thereby improving the safety of the overall circuit use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the limit base in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the temperature sensor body in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the wind oil combined cooling device of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the transfer roller of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the oil cooling device in the utility model.

[0022] In the figure: 1. Alarm base; 2. Active motor; 3. Reciprocating screw; 4. Limit base; 5. Temperature sensor body; 51. Press plate; 52. Block; 53. Baffle; 6. Air-oil combined cooling device; 61. Driving gear plate; 62. Air-cooled gear; 63. Roller; 64. Fan plate; 65. Oil cooling device; 651. Connecting gear; 652. Toothed belt roller; 653. Connecting toothed belt; 654. Oil-absorbing cotton cloth body; 655. Oil storage tank; 7. Limit guide rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-Figure 3 As shown, a power supply circuit short circuit overheating alarm device includes an alarm base 1, an active motor 2 is installed on the alarm base 1, a reciprocating screw 3 is connected to the output shaft of the active motor 2, the surface of the reciprocating screw 3 is slidably connected to the limit base 4, a temperature sensor body 5 is clamped on the limit base 4, an air-oil combination cooling device 6 is arranged at the end of the reciprocating screw 3, the interior of the limit base 4 is slidably connected to the limit guide rod 7, a warning temperature value of the temperature sensor body 5 is set, when the temperature reaches the specified warning value, the active motor 2 is started, and the active motor 2 drives the temperature sensor body 5 on the limit base 4 through the reciprocating screw 3 for mobile monitoring, the temperature sensor can achieve the effect of timely monitoring the overheating temperature during the mobile monitoring, and the movable monitoring method can avoid the problem of untimely alarm caused by the overheating temperature area being far away from the monitoring area, thereby improving the effect of the sensor in timely alarming the circuit over-condition, and at the same time, effective mobile monitoring is only carried out when the temperature is high, thereby avoiding the problem of ineffective operation of the active motor 2 at low temperature. Set the temperature of the short circuit to x degrees. When the sensor detects a temperature of x-1 degrees, there are two situations: one is that the overall circuit temperature has not reached x degrees, and the other is that the circuit in the area far from the sensor has reached x degrees, but at this time, due to the temperature distance transmission factor, the sensor cannot sense x degrees and then alarm. At this time, the sensor can only alarm if the circuit temperature continues to rise or the detection time is increased. At this time, the alarm state is in a delayed state. The design of this movable patrol sensor sets the patrol temperature to x-1 degrees in advance. When it reaches x-1, the sensor conducts a patrol. At this time, the timeliness of the sensor alarm can be increased, and the high temperature position can also be determined.

[0026] In this embodiment, the surface of the reciprocating screw 3 is rotationally connected to the inside of the alarm base 1, and both ends of the limit guide rod 7 are fixedly connected to the inside of the alarm base 1, which is used to limit the limit base 4, thereby facilitating the reciprocating screw 3 to convert the rotational force into a moving force acting on the limit base 4, thereby achieving the effect of the temperature sensor performing mobile monitoring and alarm.

[0027] In addition, the interior of the temperature sensor body 5 is elastically connected to a pressing plate 51 through a spring, and blocks 52 are fixedly connected to both sides of the pressing plate 51. A baffle 53 is fixedly connected to the surface of the pressing plate 51. By pressing the pressing plate 51, the pressing plate 51 is forced to move downward into the temperature sensor body 5, and during the movement, the block 52 is driven to disengage from the slot on the upper side of the inner wall of the limiting base 4. After pressing the pressing plate 51, the temperature sensor body 5 can be moved in the limiting base 4, and direct disassembly can also be performed. Then, while achieving the effect of facilitating the adjustment of the position of the temperature sensor body 5, the sensor can be quickly and conveniently disassembled or installed. The surface of the pressing plate 51 is slidably connected to the interior of the temperature sensor body 5, and the surface of the block 52 is plugged into the interior of the limiting base 4. Figure 2 As shown, a card slot is provided at the top of the internal slot of the limiting base 4 for positioning the card block 52 when the card block 52 is engaged. The surface of the baffle 53 is slidably connected to the inner wall of the limiting base 4 for sealing and protecting the inner slot of the limiting base 4.

[0028] Example 2

[0029] See also Figure 4-Figure 6 As shown, the air-oil combined cooling device 6 includes a driving gear disc 61 and an oil cooling device 65. The interior of the driving gear disc 61 is fixedly connected to the end of the reciprocating screw rod 3. The surface of the driving gear disc 61 is meshed with an air-cooling gear 62. The interior of the air-cooling gear 62 is fixedly connected to a roller 63. Figure 5 As shown, the number of rollers 63 and fan plates 64 is set to be multiple, and each roller 63 is connected by a belt drive, thereby achieving the effect of multiple fan plates 64 working synchronously, improving the air cooling effect, and promoting the cooling rate. The fan plate 64 is fixedly connected to the surface of the roller 63, and both ends of the roller 63 are elastically connected to the inside of the alarm base 1 through a torsion spring. When the active motor 2 is operating, it indicates that the temperature of the circuit monitoring area is relatively high. While the temperature sensor body 5 realizes the mobile monitoring of the circuit, the rotation of the reciprocating screw 3 drives the driving toothed disc 61 to rotate. When the driving toothed disc 61 rotates, the teeth on it are intermittently engaged with the air cooling gear 62 to rotate. After the air cooling gear 62 is rotated by the meshing force, it is reset and rotated by the elastic force of the torsion spring on the roller 63 when it is not engaged. That is, the air cooling gear 62 as a whole drives the fan plate 64 through the roller 63 to continuously perform positive and negative fanning motions. During the fanning period, it has the effect of increasing the air circulation rate in the circuit area, thereby achieving the purpose of air cooling and cooling.

[0030] In this embodiment, the oil cooling device 65 includes a connecting gear 651 and an oil storage tank 655. The surface of the connecting gear 651 meshes with the surface of the driving toothed disc 61. The interior of the connecting gear 651 is fixedly connected with a toothed belt roller 652. The toothed belt roller 652 is connected to a connecting toothed belt 653 in a transmission manner. The surface of the connecting toothed belt 653 is fixedly connected with an oil-absorbing cotton cloth body 654. When the driving toothed disc 61 rotates, the toothed belt roller 652 on the connecting gear 651 is meshed with the oil-absorbing cotton cloth body 654 on the connecting toothed belt 653 to work, and the oil is absorbed. The cotton cloth body 654 contacts the cooling oil inside the oil storage tank 655 during transmission. After the contact, a small amount of cooling oil adheres to it and passes through the area where the fan plate 64 stirs the airflow. The air cooling acts on the oil-absorbing cotton cloth body 654 with cooling oil, thereby achieving a rapid cooling effect. The air is quickly cooled by combining air cooling with oil cooling, thereby achieving the effect of the alarm base 1 cooling down the overheating situation while issuing an overheating warning to the circuit area, reducing the problem of short circuit due to overheating, thereby improving the safety of the overall circuit use.

[0031] In addition, one end of the toothed belt roller 652 is rotatably connected to the inside of the alarm base 1, and the number of toothed belt rollers 652 is set to be multiple, which is used to guide the oil-absorbing cotton cloth body 654 while increasing its transmission distance, and then utilize a large area of ​​oil cooling to increase the cooling rate. The surface of the toothed belt roller 652 is rotatably connected to the inside of the oil storage tank 655, and the surface of the oil storage tank 655 is fixedly connected to the inside of the alarm base 1. The interior of the oil storage tank 655 is filled with cooling oil, which is used to perform oil cooling on the environment around the overheated circuit.

[0032] When a power supply circuit short circuit overheat alarm device of the utility model is used, the alarm base 1 is installed as a whole at the circuit that needs to be monitored and alarmed. During daily use of the power supply circuit, the temperature sensor in the temperature sensor body 5 monitors the temperature of the circuit in real time and sets the warning temperature value. When the temperature reaches the specified warning value, the sensor transmits the temperature information to the central controller. The controller makes a judgment and starts the active motor 2 after confirming that the temperature reaches the warning temperature. The output shaft of the active motor 2 drives the reciprocating screw 3 to rotate. During the rotation of the reciprocating screw 3, the limit base 4 controlled by the limit guide rod 7 is driven to move in a straight line. When the limit base 4 moves, it drives the temperature sensor body 5 for mobile monitoring. During the mobile monitoring, the temperature sensor can realize the effect of timely monitoring the overheating temperature. At the same time, the movable monitoring method can avoid the problem of untimely alarm caused by the overheating temperature area being far away from the monitoring area, thereby improving the effect of the sensor in timely alarming the circuit over-condition. At the same time, effective mobile monitoring is only performed when the temperature is high, thereby avoiding the problem of ineffective operation of the active motor 2 at low temperature. By pressing the pressing plate 51, the pressing plate 51 is forced to move downward into the temperature sensor body 5, and during the movement, the card block 52 is driven to disengage from the card groove on the upper side of the inner wall of the limiting base 4. After pressing the pressing plate 51, the temperature sensor body 5 can be moved in the limiting base 4, and direct disassembly work can also be performed. Then, while achieving the effect of facilitating the adjustment of the position of the temperature sensor body 5, the sensor can be quickly and conveniently disassembled or installed.

[0033] When the active motor 2 is operating, it indicates that the temperature of the circuit monitoring area is relatively high. While the temperature sensor body 5 is realizing the mobile monitoring of the circuit, the rotation of the reciprocating screw 3 drives the driving toothed disc 61 to rotate. When the driving toothed disc 61 rotates, the teeth on it intermittently mesh with the air-cooling gear 62 to rotate. After the air-cooling gear 62 rotates due to the meshing force, it is reset and rotated by the elastic force of the torsion spring on the roller 63 when it is not meshed. That is, the air-cooling gear 62 as a whole drives the fan plate 64 to continuously perform positive and negative fanning motions through the roller 63. During the fanning period, it has the effect of increasing the air circulation rate in the circuit area, thereby achieving the purpose of air cooling and cooling. At the same time, the driving toothed disc 61 meshes with the connecting gear 651 to rotate, and the connecting gear 651 is connected to the gear 651 through the toothed belt. The rotation of roller 652 transmits the movement of connecting toothed belt 653, and the connecting toothed belt 653 transmits multiple toothed belt rollers 652 to drive the oil-absorbing cotton cloth body 654 to perform corresponding transmission work during the transmission movement. The oil-absorbing cotton cloth body 654 contacts the cooling oil inside the oil storage tank 655 during the transmission. After the contact, a small amount of cooling oil is attached to the oil-absorbing cotton cloth body 654 and passes through the area where the fan plate 64 stirs the airflow. The air cooling acts on the oil-absorbing cotton cloth body 654 with cooling oil, thereby achieving a rapid cooling effect. The air is cooled quickly by combining air cooling with oil cooling, thereby achieving the effect of the alarm base 1 cooling the overheating situation while issuing an overheating warning to the circuit area, reducing the problem of short circuit due to overheating of the circuit, thereby improving the safety of the overall circuit use.

[0034] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A power supply circuit short circuit overheat alarm device, comprising an alarm base (1), characterized in that: An active motor (2) is mounted on the alarm base (1); a reciprocating screw (3) is connected to the output shaft of the active motor (2); the surface of the reciprocating screw (3) is slidably connected to a limit base (4); a temperature sensor body (5) is clamped on the limit base (4); an air-oil combined cooling device (6) is provided at the end of the reciprocating screw (3); and the interior of the limit base (4) is slidably connected to a limit guide rod (7).

2. A power supply circuit short circuit overheat alarm device according to claim 1, characterized in that: The surface of the reciprocating screw rod (3) is rotatably connected to the interior of the alarm base (1), and both ends of the limit guide rod (7) are fixedly connected to the interior of the alarm base (1).

3. A power supply circuit short circuit overheat alarm device according to claim 1, characterized in that: The interior of the temperature sensor body (5) is elastically connected to a pressing plate (51) via a spring, both sides of the pressing plate (51) are fixedly connected to clamping blocks (52), and the surface of the pressing plate (51) is fixedly connected to a baffle (53).

4. A power supply circuit short circuit overheat alarm device according to claim 3, characterized in that: The surface of the pressing plate (51) is slidably connected to the interior of the temperature sensor body (5), the surface of the clamping block (52) is plugged into the interior of the limiting base (4), and the surface of the baffle (53) is slidably connected to the inner wall of the limiting base (4).

5. A power supply circuit short circuit overheat alarm device according to claim 1, characterized in that: The wind-oil combined cooling device (6) comprises a driving gear disc (61) and an oil cooling device (65), wherein the interior of the driving gear disc (61) is fixedly connected to the end of the reciprocating screw rod (3), the surface of the driving gear disc (61) is meshed with an air-cooling gear (62), the interior of the air-cooling gear (62) is fixedly connected to a roller (63), the surface of the roller (63) is fixedly connected to a fan plate (64), and both ends of the roller (63) are elastically connected to the interior of the alarm base (1) via a torsion spring.

6. A power supply circuit short circuit overheat alarm device according to claim 5, characterized in that: The oil cooling device (65) comprises a connecting gear (651) and an oil storage tank (655); the surface of the connecting gear (651) meshes with the surface of the driving gear disc (61); a toothed belt roller (652) is fixedly connected to the interior of the connecting gear (651); a connecting toothed belt (653) is transmission-connected to the toothed belt roller (652); and an oil-absorbing cotton cloth body (654) is fixedly connected to the surface of the connecting toothed belt (653).

7. A power supply circuit short circuit overheat alarm device according to claim 6, characterized in that: One end of the toothed belt roller (652) is rotatably connected to the interior of the alarm base (1), the surface of the toothed belt roller (652) is rotatably connected to the interior of the oil storage tank (655), and the surface of the oil storage tank (655) is fixedly connected to the interior of the alarm base (1).

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