CN214748468U

CN214748468U - Transformer overtemperature alarm device

Info

Publication number: CN214748468U
Application number: CN202120724737.3U
Authority: CN
Inventors: 史晓; 杨磊; 孙晋博; 谭阳
Original assignee: Changzhou Aiyiqi Technology Co ltd
Current assignee: Changzhou Aiyiqi Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-16
Anticipated expiration: 2031-04-09

Abstract

The utility model provides a transformer overtemperature alarm device, including the installation shell, installation shell both sides are equipped with bayonet socket span adjustment pole, bayonet socket span adjustment pole includes outer dead lever, be equipped with the inlayer in the outer dead lever and adjust the pole, be equipped with the card hole on the outer dead lever, be equipped with flexible buckle on the inlayer regulation pole, the outer end of inlayer regulation pole is equipped with flexible clamping jaw, flexible clamping jaw includes flexible base, flexible base is established in inlayer regulation pole outer end, be equipped with first clamping jaw and spout support on the flexible base, be equipped with the second clamping jaw in the spout support, be equipped with the through-hole on first clamping jaw and the second clamping jaw, be equipped with the threaded rod in the through-hole, be equipped with the screw thread in the through-hole of second clamping jaw, the one end of threaded rod is established on the support, the support is fixed on the spout support, the other end and the carousel of threaded rod are fixed; the installation shell rear side is equipped with the telescopic link, is equipped with temperature sensor on the telescopic link, and temperature sensor and controller electric connection, controller still are connected with alarm module.

Description

Transformer overtemperature alarm device

Technical Field

The utility model belongs to the technical field of transformer high temperature warning, concretely relates to transformer excess temperature alarm device.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. The transformer is basic equipment for power transmission and distribution, and is widely applied to the fields of industry, agriculture, traffic, urban communities and the like. When the transformer is used, heat is generated inside the transformer, and the temperature of the transformer needs to be monitored to prevent the temperature from being too high. If the transformer runs at a high temperature for a long time, the service life of the internal insulating paper board can be shortened, so that the insulating paper board becomes brittle and is easy to break, the insulation effect is lost, and accidents such as breakdown and the like are caused; the winding insulation is severely aged and the deterioration of the insulating oil is accelerated, affecting the service life. Therefore, it is necessary to provide an over-temperature alarm device for a transformer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer excess temperature alarm device, simple structure, simple to operate, the commonality is stronger, can connect heat abstractor, in time dispels the heat.

The utility model provides a following technical scheme:

the overtemperature warning device for the transformer is characterized by comprising an installation shell, wherein bayonet span adjusting rods are arranged on two sides of the installation shell, each bayonet span adjusting rod comprises an outer-layer fixing rod connected with the installation shell, an inner-layer adjusting rod is movably arranged in the outer-layer fixing rod, clamping holes are uniformly formed in the outer-layer fixing rod, a telescopic buckle matched with the clamping holes is arranged on the inner-layer adjusting rod, a telescopic clamping jaw is movably arranged at the outer end of the inner-layer adjusting rod and comprises a telescopic base, the telescopic base is movably arranged in the outer end of the inner-layer adjusting rod, a first clamping jaw and a sliding groove support are arranged on the telescopic base, a second clamping jaw is movably arranged in the sliding groove support, through holes are formed in the first clamping jaw and the second clamping jaw, a threaded rod is movably arranged in the through holes, threads matched with the threaded rod are arranged in the through holes of the second clamping jaw, one end of the threaded rod penetrates through the second clamping jaw and is movably arranged on a support, the support is fixed on the chute support, and the other end of the threaded rod penetrates through the first clamping jaw and is fixed with the rotary table; the installation shell rear side is equipped with the telescopic link, the telescopic link end is equipped with temperature sensor, temperature sensor and controller electric connection, the controller is established in the installation shell, the controller still is connected with alarm module.

Preferably, flexible buckle is including fixed gag lever post and flexible knot, fix through the connecting block in the middle of the fixed gag lever post on the inlayer adjusts the pole, fixed gag lever post both ends are equipped with the stopper, the mobilizable card of stopper is in flexible detaining, still be equipped with the spring on the fixed gag lever post, the both ends of spring are supported respectively flexible knot with on the connecting block.

Preferably, the outer end of the inner layer adjusting rod is provided with a connecting groove, one end of the telescopic base is movably arranged in the connecting groove, the telescopic base is connected with the connecting groove through a second spring, and the connecting groove is further provided with a limiting clamping groove for preventing the telescopic base from falling off.

Preferably, the telescopic rod comprises a first telescopic rod, a second telescopic rod, a fixed rod, a first limiting spring and a second limiting spring, the fixed rod is connected with the mounting shell, the second telescopic rod is movably arranged in the fixed rod, the first telescopic rod is movably arranged in the second telescopic rod, the outer wall of the first telescopic rod is provided with a first limiting ring, a second limiting ring is arranged inside the second telescopic rod, a third limiting ring is arranged outside the second telescopic rod, a fourth limiting ring is arranged inside the fixed rod, the first limit spring is arranged at the outer side of the first telescopic rod and the inner side of the second telescopic rod, two ends of the first limit spring are respectively propped against the first limit ring and the second limit ring, the second limiting spring is arranged on the outer side of the second telescopic rod and on the inner side of the fixed rod, and two ends of the second limiting spring are respectively abutted to the third limiting ring and the bottom of the fixed rod.

Preferably, the alarm module comprises a buzzer and an alarm indicator lamp.

Preferably, a switch socket is further arranged on the mounting shell, and the switch socket is electrically connected with the controller.

Preferably, a temperature dial is embedded on the mounting shell, and the temperature dial is electrically connected with the controller.

The utility model has the advantages that:

1. the temperature sensor is detachably arranged outside the transformer, the integral mounting span is adjustable, the length of a telescopic rod for mounting the temperature sensor is adjustable, the temperature sensor can be suitable for transformers of different models, and the universality of the over-temperature alarm device is improved;

2. the threaded rod is driven to rotate by rotating the turntable, the threaded rod drives the second clamping jaw to move along the chute support, and the radiating fin of the transformer is clamped or released, so that the installation is firm, the installation and disassembly processes are more convenient and rapid, and the installation efficiency and the reliability are improved;

3. an automatic switch socket is arranged on the overtemperature alarm device and is used for being connected with an external cooling device, the on-off of the switch socket is controlled by a controller, and the external cooling device is triggered to operate by the on-off of the switch socket within a certain temperature range before overtemperature alarm, so that the temperature is automatically cooled;

4. the external cooling device does not reduce the temperature to the standard range within the preset time range, the controller triggers the alarm device to alarm, the buzzer and the alarm indicator lamp prompt a worker to quickly find the overtemperature device, the real-time temperature of the transformer is solved according to the real-time data of the temperature dial, next cooling measures are taken in time, safety is guaranteed, and meanwhile manual inspection and operation frequency are reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic structural diagram of the present invention when mounted on a transformer.

Detailed Description

As shown in the figure, for the utility model provides a pair of transformer excess temperature alarm device, including installation shell 1, 1 both sides of installation shell are equipped with bayonet socket span regulation pole, bayonet socket span regulation pole includes outer dead lever 2 of being connected with installation shell 1, mobilizable inlayer regulation pole 3 that is equipped with in the outer dead lever 2, the equipartition is equipped with card hole 5 on the outer dead lever 2, be equipped with on the inlayer regulation pole 3 with the flexible buckle 4 that matches of card hole 5, flexible buckle 4 is including fixed gag lever post 13 and flexible the knot, fix on inlayer regulation pole 3 through connecting block 14 in the middle of the fixed gag lever post 13, fixed gag lever post 13 both ends are equipped with stopper 15, stopper 15 mobilizable card is in flexible the knot, still be equipped with the spring on fixed gag lever post 13, the both ends of spring are supported respectively on flexible knot and connecting block 14. The outer end mobilizable of inlayer regulation pole 3 is equipped with flexible clamping jaw, and flexible clamping jaw includes telescopic base 6, and the outer end that the inlayer was adjusted pole 3 is equipped with the spread groove, and 6 one end mobilizable of telescopic base establishes in the spread groove, and telescopic base 6 passes through second spring coupling with the spread groove, still is equipped with the spacing draw-in groove that prevents that telescopic base 6 from droing on spread groove and the telescopic base 6. The telescopic base 6 is provided with a first clamping jaw 7 and a chute support 8, a second clamping jaw 9 is movably arranged in the chute support 8, through holes are formed in the first clamping jaw 7 and the second clamping jaw 9, a threaded rod 10 is movably arranged in the through holes, threads matched with the threaded rod 10 are arranged in the through holes of the second clamping jaw 9, one end of the threaded rod 10 penetrates through the second clamping jaw 9 and is movably arranged on the support, the support is fixed on the chute support 8, the other end of the threaded rod 10 penetrates through the first clamping jaw 7 and is fixed with a rotary table 11, the rotary table 11 can be rotated to control the rotation of the threaded rod 10, and the second clamping jaw 9 is driven and controlled to move along the chute support 8 through the threads on the threaded rod 10; the rear side of the mounting shell 1 is provided with telescopic rods, the telescopic rods comprise a first telescopic rod 16, a second telescopic rod 17, a fixed rod 18, a first limiting spring 19 and a second limiting spring 20, the fixed rod 18 is connected with the mounting shell 1, the second telescopic rod 17 is movably arranged in the fixed rod 18, the first telescopic rod 16 is movably arranged in the second telescopic rod 17, the outer wall of the first telescopic rod 16 is provided with a first limiting ring, the inside of the second telescopic rod 17 is provided with a second limiting ring (the first limiting ring is prevented from falling off from the second telescopic rod 17 by the clamping connection of the third limiting ring at the end part of the second telescopic rod 17 with the first limiting ring), the outside of the second telescopic rod 17 is provided with a third limiting ring, the inside of the fixed rod 18 is provided with a fourth limiting ring (the second telescopic rod 17 is prevented from falling off from the fixed rod 18 by the clamping connection of the fourth limiting ring at the end part of the fixed rod 18 with the third limiting ring), the first limiting spring 19 is arranged on the outer side of the first telescopic rod 16 and the inner side of the second telescopic rod 17, two ends of the first limiting spring 19 respectively support against the first limiting ring and the second limiting ring, the second limiting spring 20 is arranged on the outer side of the second telescopic rod 17 and the inner side of the fixed rod 18, and two ends of the second limiting spring 20 respectively support against the bottoms of the third limiting ring and the fixed rod 18. The telescopic link end (16 ends of first telescopic link promptly) is equipped with temperature sensor 12, and temperature sensor 12 and controller electric connection (what the controller adopted is the programmable singlechip of stable performance), and the controller is established in installation shell 1, and the controller still is connected with alarm module, and alarm module includes bee calling organ 21 and alarm indicator 22. The mounting shell 1 is provided with a switch socket 23 for connecting an external cooling device, and the switch socket 23 is electrically connected with the controller. The temperature dial 24 is embedded on the mounting shell 1 and used for displaying temperature, and the temperature dial 24 is electrically connected with the controller.

The working principle is as follows: before installation, firstly, setting a temperature threshold for powering on and off the switch socket 23 (namely a temperature threshold for starting and stopping the external cooling device) and a maximum value of continuous power-on time of the switch socket 23 (namely a maximum value of continuous starting and running time of the external cooling device) in the controller according to actual conditions; when the clamping device is installed, firstly, the telescopic distance between the outer-layer fixing rod 2 and the inner-layer adjusting rod 3 is adjusted according to the distance between transformer radiating fins (the telescopic buckle is pressed into the clamping hole 5, the telescopic buckle is loosened after the inner-layer adjusting rod 3 is pulled out and inserted to the position of the target clamping hole 5, the telescopic buckle is pushed out of the clamping hole 5 under the action of the spring, the span of the two telescopic clamping jaws is approximately matched with the distance between the transformer radiating fins, and then the rotating disc 11 is rotated to control the second clamping jaw 9 to move to a proper position along the sliding groove support 8 (namely, the distance between the first clamping jaw 7 and the second clamping jaw 9 is slightly larger than the thickness of the radiating fins); and then the telescopic clamping jaws are pulled to the two ends, so that the telescopic clamping jaws at the two ends are aligned with the two radiating fins and then pushed into the radiating fins, the surface of the transformer is propped against by the temperature sensor 12 at the moment (if the radiating fins are short, the temperature sensor 12 is propped against the surface of the transformer, along with the continuous pushing of the telescopic clamping jaws, the telescopic rods can be extruded and shortened, the surface of the transformer is tightly attached by the temperature sensor 12 while the temperature sensor 12 is prevented from being damaged, the accuracy of temperature measurement is ensured), then two hands are loosened, the first clamping jaws 7 at the two ends are respectively clamped outside the two radiating fins, then the second clamping jaws 9 are respectively clamped inside the two radiating fins by rotating the turntables 11 at the two ends, the installation is completed, and an external cooling device is inserted into the switch socket 23 according to actual conditions. When the temperature sensor 12 is used, the temperature sensor 12 monitors the temperature of the transformer in real time, when the temperature is equal to or higher than a preset threshold value, the controller controls the switch socket to be powered on, the external cooling device is started, the controller controls the switch socket to be powered off and the external cooling device stops working until the temperature is lower than the threshold value, when the continuous working time of the external cooling device exceeds a preset maximum value (the current external cooling device can be preliminarily judged to fail to meet the actual cooling requirement), the controller starts the alarm device to remind a worker to carry out field inspection (whether the number of the external cooling devices is increased or the more efficient external cooling devices are replaced or not), when the temperature is lower than the threshold value, the controller controls the alarm device to stop alarming or the worker to stop alarming manually (and does not stop alarming within a certain time range of manual stopping, wherein the certain time range is provided, also needs to be set on the controller in advance); when the heat dissipation plate is disassembled, the second clamping jaw 9 is separated from the first clamping jaw 7 through the rotary table 11, and then the telescopic clamping jaw is pulled and pulled out of the heat dissipation plate.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The overtemperature alarm device for the transformer is characterized by comprising an installation shell (1), wherein bayonet span adjusting rods are arranged on two sides of the installation shell (1), each bayonet span adjusting rod comprises an outer-layer fixing rod (2) connected with the installation shell (1), an inner-layer adjusting rod (3) is movably arranged in the outer-layer fixing rod (2), clamping holes (5) are uniformly distributed in the outer-layer fixing rod (2), a telescopic buckle (4) matched with the clamping holes (5) is arranged on the inner-layer adjusting rod (3), a telescopic clamping jaw is movably arranged at the outer end of the inner-layer adjusting rod (3), the telescopic clamping jaw comprises a telescopic base (6), the telescopic base (6) is movably arranged in the outer end of the inner-layer adjusting rod (3), a first clamping jaw (7) and a sliding chute support (8) are arranged on the telescopic base (6), a second clamping jaw (9) is movably arranged in the chute support (8), through holes are formed in the first clamping jaw (7) and the second clamping jaw (9), a threaded rod (10) is movably arranged in the through holes, threads matched with the threaded rod (10) are arranged in the through holes of the second clamping jaw (9), one end of the threaded rod (10) penetrates through the second clamping jaw (9) and is movably arranged on the support, the support is fixed on the chute support (8), and the other end of the threaded rod (10) penetrates through the first clamping jaw (7) and is fixed with the rotary table (11); the installation shell (1) rear side is equipped with the telescopic link, the telescopic link end is equipped with temperature sensor (12), temperature sensor (12) and controller electric connection, the controller is established in installation shell (1), the controller still is connected with alarm module.

2. The over-temperature alarm device for the transformer according to claim 1, wherein the retractable buckle (4) comprises a fixed limiting rod (13) and a retractable buckle, the middle of the fixed limiting rod (13) is fixed on the inner-layer adjusting rod (3) through a connecting block (14), limiting blocks (15) are arranged at two ends of the fixed limiting rod (13), the limiting blocks (15) can be clamped in the retractable buckle in a movable manner, a spring is further arranged on the fixed limiting rod (13), and two ends of the spring respectively abut against the retractable buckle and the connecting block (14).

3. The over-temperature alarm device for the transformer according to claim 1, wherein the outer end of the inner adjusting rod (3) is provided with a connecting groove, one end of the telescopic base (6) is movably arranged in the connecting groove, the telescopic base (6) is connected with the connecting groove through a second spring, and the connecting groove and the telescopic base (6) are further provided with a limiting clamping groove for preventing the telescopic base (6) from falling off.

4. The over-temperature alarm device for the transformer according to claim 1, wherein the telescopic rods comprise a first telescopic rod (16), a second telescopic rod (17), a fixing rod (18), a first limiting spring (19) and a second limiting spring (20), the fixing rod (18) is connected with the mounting shell (1), the second telescopic rod (17) is movably arranged in the fixing rod (18), the first telescopic rod (16) is movably arranged in the second telescopic rod (17), a first limiting ring is arranged on the outer wall of the first telescopic rod (16), a second limiting ring is arranged inside the second telescopic rod (17), a third limiting ring is arranged outside the second telescopic rod (17), a fourth limiting ring is arranged inside the fixing rod (18), and the first limiting spring (19) is arranged outside the first telescopic rod (16), The second telescopic link (17) is inboard, first spacing spring (19) both ends are supported respectively on first spacing ring and the second spacing ring, establish second spacing spring (20) the second telescopic link (17) outside dead lever (18) are inboard, the both ends of second spacing spring (20) support respectively the third spacing ring with dead lever (18) bottom.

5. The transformer overtemperature warning device according to claim 1, characterized in that the warning module comprises a buzzer (21) and a warning indicator lamp (22).

6. The over-temperature alarm device for the transformer according to claim 1, wherein a switch socket (23) is further arranged on the mounting shell (1), and the switch socket (23) is electrically connected with the controller.

7. The over-temperature alarm device for the transformer according to claim 1, wherein a temperature dial (24) is embedded on the mounting housing (1), and the temperature dial (24) is electrically connected with the controller.