Novel transformer with overheating protection function

Abstract

The utility model relates to the technical field of transformers, in particular to a novel transformer with an overheating protection function, which comprises a protection box and a transformer body positioned in the protection box, a support plate is mounted in the protection box, and the transformer body is mounted on the upper end face of the support plate. A plurality of fixing blocks are installed at the top of the protection box, a top cover is installed at the tops of the fixing blocks, a wiring end of the transformer body penetrates through the top cover to be connected with an external circuit, and a plurality of cooling fins are installed on the front side wall and the rear side wall of the transformer body; a plurality of heat conduction rods are installed between the outer side walls of the multiple cooling fins located on the same side in a penetrating mode, two protection frames which are distributed front and back and installed on the bottom end face of the interior of the protection box are arranged below the supporting plate, and therefore the effect of cooling the transformer step by step is achieved according to the rising temperature of the transformer; and the transformer is effectively protected and is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely is a novel transformer with overheat protection function. BACKGROUND

[0002] The transformer is the device that utilizes electromagnetic induction's principle to change alternating voltage, main component is primary coil, secondary coil and core, the main role of transformer is voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing etc., the inside of transformer has current when working, therefore a large amount of heat is produced in the process of transformer work, in order to ensure that the transformer can work stably, then needs to help heat dissipation structure and sends out heat.

[0003] At present, the heat dissipation mode that transformer adopts has, oil immersion air cooling (ONAF) is transformer and adopts the fin and carries out heat dissipation, and the heat dissipation effect is limited, due to the long-time use of transformer or the influence of external environment, the body of transformer continues to heat, cannot carry out step-by-step heat dissipation according to the temperature of transformer, thereby cannot improve the heat dissipation efficiency according to the rising temperature of transformer, and there is room for improvement. UTILITY MODEL CONTENT

[0004] The utility model discloses a novel transformer with overheat protection function, with the temperature of transformer itself rises, reaches the effect of step-by-step cooling of transformer, effectively protects transformer, avoids its damaged characteristics.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a novel transformer with overheat protection function, including protection case and the transformer body in the inside of protection case, the inside of protection case is installed with support plate, the transformer body is installed in the upper end surface of support plate, the top of protection case is installed with a plurality of fixed blocks, the top of a plurality of fixed blocks is installed with top cover, and the wiring end of transformer body penetrates top cover and is connected with external circuit, a plurality of cooling fins are installed on the front and back two side walls of transformer body, a plurality of heat conduction rods are installed between the outer side walls of a plurality of cooling fins on the same side, two protection frames that distribute before and after and are installed on the bottom end surface in the inside of protection case are arranged below support plate, the bottom of a plurality of heat conduction rods on the same side penetrates support plate and protection frame in proper order and is installed with cold plate, and the bottom end surface of protection case penetrates and is installed with a plurality of refrigerators that are fixedly connected with two cold plates respectively;

[0006] The left side wall of the protection box is provided with a first cooling fan through a support, one end of an air outlet pipe of the first cooling fan is communicated with a ventilation pipe, the other end of the ventilation pipe is communicated with a cold air pipe installed at the bottom of the support plate, the left side wall of the protection box is provided with a second cooling fan above the first cooling fan, the other end of an air outlet pipe of the second cooling fan is communicated with two air guide pipes distributed in front and back, and the outer side wall of the air guide pipe is communicated with a plurality of exhaust pipes penetrating through the left side wall of the protection box.

[0007] In order to facilitate detection of the temperature of the transformer body, preferably, the right side wall of the transformer body is provided with a temperature sensor.

[0008] In order to facilitate control of the operation of each component, preferably, the right side wall of the protection box is provided with a fixed plate, the upper end surface of the fixed plate is provided with an alarm, and the bottom end surface of the fixed plate is provided with a controller.

[0009] In order to facilitate the cold air emitted by the cold air pipe to contact the transformer body and cool it, preferably, the upper end surface of the support plate is provided with a plurality of uniformly distributed through holes.

[0010] In order to facilitate the cold air pipe to release cold air, preferably, the outer side wall of the cold air pipe is provided with a plurality of air outlet holes.

[0011] In order to facilitate the installation of the plurality of heat dissipation fins, preferably, there is a gap between the outer side wall of the transformer body and the inner side wall of the protection box.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] The utility model discloses a temperature sensor detects the temperature on the transformer body and exceeds the set primary protection value, and the controller starts multiple refrigerators, carries out refrigeration to the cold lead plate, makes to multiple heat conduction rods and the cooling fin carry out cooling, thereby carries out primary cooling to the transformer body, when the temperature sensor detector's temperature exceeds the set middle protection value, the controller starts the first air cooler on the basis of primary protection at this moment, makes the cold air pipe send out the cold air, and the cold air that sends out can further carry out heat dissipation to the transformer body through the support plate, realizes middle cooling, when the temperature sensor detector's temperature exceeds the set senior protection value, the controller starts the second air cooler on the basis of middle protection at this moment, can send out the cold air through multiple exhaust pipes with the cold air flow, carries out heat dissipation to the transformer body and carries out cooling to multiple cooling fins, realizes senior cooling, if when the temperature sensor detector's temperature reaches the value of high temperature early warning, the controller starts the alarm and disconnects the safety switch, makes the transformer body stop running, thereby according to the temperature of transformer itself rising, reaches the effect of cooling the transformer gradually, plays the effective protection to the transformer, avoids its damage. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall sectional view structure diagram of the utility model;

[0015] Figure 2 It is the structure diagram of support plate and cold air pipe of the utility model;

[0016] Figure 3 It is the structure diagram of cooling fin and heat conduction rod left view of the utility model;

[0017] Figure 4 It is the overhead structure diagram of support plate of the utility model;

[0018] Figure 5 It is the left view structure diagram of two air guide pipes of the utility model.

[0019] In the drawing: 1, protection box;101, fixed block;102, top cover;2, transformer body;201, support plate;3, cooling fin;301, heat conduction rod;302, protection frame;303, refrigerator;4, cold lead plate;5, first air cooler;501, ventilation pipe;502, cold air pipe;6, second air cooler;601, air guide pipe;602, exhaust pipe;7, temperature sensor;8, fixed plate;801, alarm;802, controller. DETAILED DESCRIPTION

[0020] Please refer to Figures 1 to 5The utility model provides a novel transformer with overheating protection function, including protection case 1 and the transformer body 2 in protection case 1 inside, the inside installation of protection case 1 has support plate 201, and the upper end surface of transformer body 2 is installed to support plate 201, and the top of protection case 1 is installed with a plurality of fixed blocks 101, and the top of a plurality of fixed blocks 101 is installed with top cover 102, and the wiring end of transformer body 2 penetrates top cover 102 and is connected with external circuit, and the front and rear walls of transformer body 2 are all installed with a plurality of radiating fins 3, and a plurality of heat conduction rods 301 are installed between the outer walls of a plurality of radiating fins 3 located at the same side, and the bottom of support plate 201 is provided with two front and rear distribution and installs in the protection frame 302 of protection case 1 inside bottom end surface, and the bottom of a plurality of heat conduction rods 301 located at the same side penetrates support plate 201 and protection frame 302 in proper order and is installed with cooling plate 4, and the bottom end surface of protection case 1 penetrates and is installed with a plurality of refrigerators 303 of fixed connection respectively with two cooling plates 4,

[0021] The left side wall of protection case 1 is installed with first cold fan 5 through support, and the other end of the air outlet pipe of first cold fan 5 penetrates the left side wall of protection case 1 and is communicated with ventilation pipe 501, and the other end of ventilation pipe 501 is communicated with cold air pipe 502 installed at the bottom of support plate 201, and the left side wall of protection case 1 is installed with second cold fan 6 located above first cold fan 5, and the other end of the air outlet pipe of second cold fan 6 is communicated with two front and rear distribution gas guide pipe 601, and the outer wall of gas guide pipe 601 is communicated with a plurality of exhaust pipes 602 penetrating the left side wall of protection case 1.

[0022] In this embodiment: when in use, first set the protection value of temperature reaching each stage on the controller 802, when the temperature sensor 7 detects that the temperature on the transformer body 2 exceeds the set primary protection value, the controller 802 starts the multiple refrigerators 303 to cool the cooling plate 4, so that the multiple heat conduction rods 301 and the cooling fins 3 are cooled, thereby the transformer body 2 is cooled, when the temperature sensor 7 detects that the temperature exceeds the set intermediate protection value, at this time, the controller 802 starts the first air cooler 5 on the basis of the primary protection, so that the cold air pipe 502 emits cold air, and the emitted cold air can further cool the transformer body 2 through the support plate 201, realizing intermediate cooling, when the temperature sensor 7 detects that the temperature exceeds the set high-level protection value, at this time, the controller 802 starts the second air cooler 6 on the basis of the intermediate protection, and the cold air flow can be discharged through the multiple exhaust pipes 602, thereby cooling the transformer body 2 and cooling the multiple cooling fins 3, realizing high-level cooling, if the temperature sensor 7 detects that the temperature reaches the high-temperature early warning value, the controller 802 starts the alarm 801 to alarm and disconnects the safety switch, so that the transformer body 2 stops running, thereby the transformer is cooled gradually according to the temperature rise of the transformer, the effect of cooling the transformer gradually is achieved, and the transformer is effectively protected, and damage of the transformer is avoided.

[0023] As a technical optimization scheme of the utility model, the right side wall of the transformer body 2 is provided with a temperature sensor 7.

[0024] In this embodiment: by setting the temperature sensor 7, the temperature of the transformer body 2 can be conveniently detected.

[0025] As a technical optimization scheme of the utility model, the right side wall of the protection box 1 is provided with a fixed plate 8, the upper end face of the fixed plate 8 is provided with an alarm 801, and the bottom end face of the fixed plate 8 is provided with a controller 802.

[0026] In this embodiment: by setting the controller 802, each component can be conveniently controlled to run, and by installing the alarm 801, the staff can be conveniently reminded of the high temperature of the transformer.

[0027] As a technical optimization scheme of the utility model, the upper end face of the support plate 201 is provided with multiple evenly distributed through holes.

[0028] In this embodiment: by setting the through hole, the cold air emitted by the cold air pipe 502 can pass through the support plate 201 to cool the transformer body 2.

[0029] As a technical optimization scheme of the utility model, the outer side wall of the cold air pipe 502 is provided with multiple air outlets.

[0030] In the embodiment, the cold air is conveniently discharged through the plurality of air outlets.

[0031] As a technical optimization scheme of the utility model, there is a gap between the outer side wall of the transformer body 2 and the inner side wall of the protective box 1.

[0032] In the embodiment, the plurality of cooling fins 3 are conveniently installed through the gap between the outer side wall of the transformer body 2 and the inner side wall of the protective box 1.

[0033] Working principle: first, when using the device, the transformer body 2 is installed, and the fuse switch (over-temperature and over-pressure protection switch) on the transformer body 2 is electrically connected with the controller 802, and the protective values of each stage when the temperature reaches the controller 802 are set, the temperature sensor 7 can detect the temperature of the transformer body 2 when the transformer body 2 is running, when the temperature sensor 7 detects that the temperature on the transformer body 2 exceeds the set primary protection value, the controller 802 starts the plurality of refrigerators 303, and the cooling plate 4 is cooled, so that the plurality of heat conduction rods 301 and the cooling fins 3 are cooled, thereby cooling the transformer body 2, when the transformer body 2 runs for a long time, when the temperature sensor 7 detects that the temperature on the detector exceeds the set intermediate protection value, at this time, the controller 802 starts the first cooling fan 5 on the basis of the primary protection, and the cold air flow is introduced into the cold air pipe 502 through the ventilation pipe 501, so that the cold air pipe 502 discharges the cold air, and the discharged cold air can further cool the transformer body 2 through the supporting plate 201, when the temperature sensor 7 detects that the temperature on the detector exceeds the set high-level protection value, at this time, the controller 802 starts the second cooling fan 6 on the basis of the intermediate protection, and the cold air flow is introduced into the two air guide pipes 601 respectively, so that the plurality of air exhaust pipes 602 discharge the cold air, cool the transformer body 2 and cool the plurality of cooling fins 3, if the temperature sensor 7 detects that the temperature on the detector reaches the high-temperature early warning value, the controller 802 starts the alarm 801 to alarm, and the fuse switch is disconnected, so that the transformer body 2 stops running, and the transformer overheat protection is realized.

[0034] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel transformer with overheat protection function, comprising a protective enclosure (1) and a transformer body (2) located inside the protective enclosure (1), characterized in that: The protective box (1) is equipped with a support plate (201) inside. The transformer body (2) is installed on the upper surface of the support plate (201). Multiple fixing blocks (101) are installed on the top of the protective box (1). A top cover (102) is installed on the top of the multiple fixing blocks (101). The wiring terminals of the transformer body (2) pass through the top cover (102) and are connected to the external circuit. Multiple heat sinks (3) are installed on both the front and rear side walls of the transformer body (2). Multiple heat sinks (3) are located on the same side. Multiple heat-conducting rods (301) are installed through the outer walls of the heat sink (3). Two protective frames (302) are arranged in front and behind and installed on the bottom surface of the protective box (1) below the support plate (201). The bottom of the multiple heat-conducting rods (301) located on the same side passes through the support plate (201) and the protective frame (302) in sequence and is equipped with a cold-conducting plate (4). Multiple coolers (303) are installed through the bottom surface of the protective box (1) and are fixedly connected to the two cold-conducting plates (4) respectively. A first air cooler (5) is mounted on the left side wall of the protective box (1) via a bracket. The other end of the air outlet pipe of the first air cooler (5) passes through the left side wall of the protective box (1) and is connected to a ventilation pipe (501). The other end of the ventilation pipe (501) is connected to a cold air pipe (502) installed at the bottom of the support plate (201). A second air cooler (6) is mounted on the left side wall of the protective box (1) above the first air cooler (5). The other end of the air outlet pipe of the second air cooler (6) is connected to two front-to-back air guide pipes (601). The outer side wall of the air guide pipe (601) is connected to multiple exhaust pipes (602) that pass through the left side wall of the protective box (1).

2. A novel transformer with overheat protection function according to claim 1, characterized in that: A temperature sensor (7) is installed on the right side wall of the transformer body (2).

3. A novel transformer with overheat protection function according to claim 1, characterized in that: A fixing plate (8) is installed on the right side wall of the protective box (1), an alarm (801) is installed on the upper surface of the fixing plate (8), and a controller (802) is installed on the bottom surface of the fixing plate (8).

4. A novel transformer with overheat protection function according to claim 1, characterized in that: The upper surface of the support plate (201) has a plurality of evenly distributed through holes.

5. A novel transformer with overheat protection function according to claim 1, characterized in that: The outer wall of the air duct (502) is provided with multiple air outlets.

6. A novel transformer with overheat protection function according to claim 1, characterized in that: There is a gap between the outer wall of the transformer body (2) and the inner wall of the protective box (1).

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