A temperature controller housing for a transformer

Abstract

The application discloses a temperature control instrument shell of a transformer and relates to the field of temperature control instruments, which comprises a temperature control instrument shell body, wherein the temperature control instrument shell body comprises a display screen arranged at the front end, a rear sealing plate arranged at the rear end and a side plate, the side plate is provided with a heat dissipation opening, a movable cover is arranged outside the rear end of the temperature control instrument shell body, and the rear sealing plate is further provided with an electric push rod for driving the movable cover to move close to or away from the temperature control instrument shell body. When the movable cover moves back and forth outside the temperature control instrument shell body, the movable cover can play a role in heat dissipation of the inside of the temperature control instrument shell body. When the temperature control instrument shell body is in a low-temperature environment, the temperature control instrument shell body can be covered by the movable cover, the heat dissipation opening for connecting the temperature control instrument shell body and the external environment is blocked, the low-temperature is prevented from entering the inside of the temperature control instrument shell body through the heat dissipation opening and damaging the electrical elements in the inside of the temperature control instrument shell body, and the heat preservation and ventilation layer on the inner wall of the movable cover can play a role in heat preservation and insulation.

Description

Technical Field

[0001] This invention relates to the field of temperature controllers, and particularly to a temperature controller housing for a transformer. Background Technology

[0002] The temperature controller is an integrated intelligent temperature control instrument. It adopts a fully digital integrated design and has functions such as programmable temperature curve or fixed-point constant temperature control, multiple PID adjustment, output power limiting curve programming, manual / automatic switching, soft start, alarm switch output, real-time data query and computer communication.

[0003] A temperature controller includes a housing and its internal circuit board and control components. To dissipate heat from the inside of the temperature controller, ventilation holes are often made in the housing. However, this method of relying solely on "air convection" is not only inefficient in terms of heat dissipation, but also allows external dust to easily enter the temperature controller through the ventilation holes, thus accelerating the aging of internal components and circuits. This is exacerbated in humid weather. On the other hand, since the circuit board and its electronic components (capacitors, resistors, chips, etc.) have operating temperature requirements, low temperatures or temperatures exceeding their operating temperature range may cause the chips to malfunction and affect their lifespan. Therefore, in cold winters or when used in high-altitude and cold regions, the ventilation holes on temperature controllers cannot be kept open, as this would reduce the lifespan of the temperature controller.

[0004] Therefore, it is necessary to invent a temperature controller housing for a transformer to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a temperature controller housing for a transformer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a temperature controller housing for a transformer, comprising a temperature controller housing, the temperature controller housing including a display screen at the front end, a rear sealing plate at the rear end, and a side plate located between the rear sealing plate and the display screen, the side plate having a heat dissipation vent, a dust filter screen at the outer port of the heat dissipation vent, the outer surface of the dust filter screen being flush with the plane of the outer surface of the side plate, a movable cover being movably fitted on the outer side of the rear end of the temperature controller housing, the inner wall of the movable cover contacting the outer surface of the side plate, a connecting hole for connecting the temperature controller housing and the interior of the movable cover being provided on the rear sealing plate, an electric push rod for driving the movable cover to move closer to or away from the temperature controller housing, the movable end of the electric push rod being fixedly connected to the side wall of the movable cover away from the temperature controller housing, the inner wall of the movable cover having a heat insulation and breathable layer matching its shape, a temperature sensor and a controller being provided inside the temperature controller housing, the controller being electrically connected to the electric push rod and the temperature sensor;

[0007] The movable cover has an air chamber inside, and an air extraction component is provided in the area formed by the movable cover and the rear sealing plate to extract the gas inside the air chamber.

[0008] Preferably, the air extraction assembly includes a spring compression tube that can be extended or compressed inside the movable cover. One end of the spring compression tube is connected to the surface of the rear sealing plate, and the other end of the spring compression tube is fixedly connected to the side wall of the movable cover away from the temperature controller housing. The inner wall of the movable cover has a vacuum port that connects the spring compression tube to the air chamber, and the outer wall of the movable cover has a balancing air pressure hole that communicates with the air chamber. The rear sealing plate has a jet port that communicates with the inside of the spring compression tube. The jet port, the balancing air pressure hole, and the vacuum port are all equipped with one-way solenoid valves, and the one-way solenoid valves inside the jet port, the balancing air pressure hole, and the vacuum port are all electrically connected to the controller.

[0009] Preferably, the rear sealing plate is further provided with an air inlet that communicates with the inside of the spring compression tube, and the inside of the air inlet is provided with a one-way solenoid valve that is electrically connected to the controller.

[0010] Preferably, the port of the movable cover is provided with a dust scraping ring to scrape off the dust on the outer surface of the temperature controller housing. The dust scraping ring is a rectangular frame structure that matches the outer surface of the temperature controller housing, and the outer surface of the dust scraping ring is inclined from the movable cover toward the temperature controller housing.

[0011] Preferably, a deflector plate is movably hinged to the inside of the temperature controller housing near the rear sealing plate via a rotating rod. The rotating rod is fixedly connected to one end of the deflector plate near the rear sealing plate, and the rotating rod can rotate back and forth around its own axis.

[0012] Preferably, a circular gear coaxial with the rotating rod is fixed on the rotating rod, and a drive rod that can move back and forth is provided inside the temperature controller housing near the circular gear. The side of the drive rod facing the circular gear is provided with a set of teeth that mesh with the circular gear. When the drive rod moves back and forth, the set of teeth meshes with the circular gear for transmission.

[0013] Preferably, one end of the drive rod is fixedly connected to the inner wall of a set of side plates via a compression spring, and the other end of the drive rod extends into the storage groove on another set of side plates and is fixedly connected to the movable column. When the compression spring fixedly connected to the drive rod is in its natural state, the movable column extends out of the outer port of the storage groove. The inner wall of the movable cover is provided with a pressing element that presses the movable column into the storage groove.

[0014] Preferably, the pressing element includes a protrusion fixedly connected to the inner wall of the movable cover, and when the movable cover moves outside the temperature controller housing, the protrusion passes the outer end of the movable column.

[0015] Preferably, the protrusions are provided in multiple groups, and the multiple groups of protrusions are arranged in a matrix on the inner wall of the movable cover facing the movable column.

[0016] Preferably, a mounting plate is fixedly provided on the temperature controller housing near the front end, and a base is provided at the bottom of the mounting plate to support the temperature controller housing. Grooves are provided on the outer periphery of the temperature controller housing on the mounting plate.

[0017] The technical effects and advantages of this invention are as follows:

[0018] 1. In this invention, when the movable cover moves back and forth outside the temperature controller housing, it can dissipate heat from the inside of the temperature controller housing. When the temperature controller housing is in a low-temperature environment, the movable cover can cover the temperature controller housing, and the heat dissipation vents connecting the temperature controller housing to the external environment will also be blocked to prevent low temperature from entering the inside of the temperature controller housing through the heat dissipation vents and damaging its internal electrical components. In addition, the heat insulation and breathable layer on the inner wall of the movable cover can play the role of "heat insulation".

[0019] 2. An air extraction component is provided in the area formed by the movable cover and the rear sealing plate to extract the gas inside the air chamber. The air extraction component can extract the air inside the air chamber, making the air inside the air chamber scarce, or even reaching a vacuum state. This can effectively isolate the external cold source, thereby playing a better heat preservation role and avoiding a shorter service life of the temperature controller housing in high-altitude and cold environments.

[0020] 3. The air extraction component in this invention can not only be started in low-temperature environments, but also when the ambient temperature is high. If the ambient temperature is higher than the temperature inside the temperature controller housing, moving the movable cover back and forth to exchange heat will only cause the temperature inside the temperature controller housing to gradually rise. In order to isolate the external heat source, the movable cover can be placed on the outside of the temperature controller housing and the heat dissipation vent can be blocked. At the same time, the air extraction component is started to vacuum the air chamber to shield the external heat source.

[0021] 4. The present invention also provides an air inlet on the rear sealing plate that communicates with the inside of the spring compression tube. When the movable cover moves toward the temperature controller housing and compresses the spring compression tube, the gas inside the spring compression tube will be ejected from the jet nozzle into the inside of the temperature controller housing and blown out from the heat dissipation port to achieve heat exchange inside the temperature controller housing. The gas inside the spring compression tube enters the inside of the temperature controller housing during compression, ensuring that the airflow inside the temperature controller housing is large when the movable cover moves back and forth, resulting in better heat dissipation inside the temperature controller housing.

[0022] 5. When the movable cover moves closer to the temperature controller housing, the dust scraper ring at the port of the movable cover can scrape off the dust on the side plate surface. At the same time, the air escaping from between the movable cover and the side plate will have a better dust removal effect on the side plate surface.

[0023] 6. The rotating rod can rotate back and forth around its own axis. When the rotating rod rotates back and forth, it can drive the deflection plate to swing back and forth, which can disperse and change the direction of the air blown into the temperature controller housing from the jet nozzle and the connecting hole. This makes the air entering the temperature controller housing from the jet nozzle and the connecting hole more evenly distributed inside the temperature controller housing, so as to achieve a better heat exchange effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of the temperature controller housing of the transformer of the present invention.

[0025] Figure 2 This is a schematic diagram of the internal structure of the temperature controller housing of the transformer of the present invention.

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0027] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B.

[0028] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point C.

[0029] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point D

[0030] In the diagram: 1. Temperature controller housing; 101. Rear sealing plate; 102. Display screen; 103. Side plate; 2. Movable cover; 3. Dust scraper ring; 4. Mounting plate; 5. Slotted part; 7. Electric push rod; 8. Thermal insulation and breathable layer; 9. Air chamber; 10. Protrusion; 11. Spring compression tube; 12. Air inlet; 13. Air jet outlet; 14. Deflection plate; 15. Connecting hole; 16. Temperature sensor; 17. Controller; 18. Storage slot; 19. Movable column; 20. Drive rod; 21. Balance air pressure hole; 22. Vacuum port; 23. Heat dissipation port; 24. Dust filter; 26. Gear assembly; 27. Circular gear; 28. Rotating rod; 29. ​​One-way solenoid valve; 30. Compression spring; 31. Base. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0033] This invention provides, for example Figures 1-6 The diagram shows a temperature controller housing for a transformer, comprising a temperature controller housing 1. The temperature controller housing 1 includes a display screen 102 at the front end, a rear sealing plate 101 at the rear end, and a side plate 103 located between the rear sealing plate 101 and the display screen 102. A heat dissipation vent 23 is provided on the side plate 103, and a dust filter 24 is provided at the outer end of the heat dissipation vent 23. The outer surface of the dust filter 24 is flush with the outer surface of the side plate 103. A movable cover 2 is movably fitted onto the rear end of the temperature controller housing 1. The inner wall of the movable cover 2 is flush with the side plate 102. The outer surfaces of the 3 are in contact. The rear sealing plate 101 has a connecting hole 15 for connecting the inside of the temperature controller housing 1 and the movable cover 2. The rear sealing plate 101 is also provided with an electric push rod 7 for driving the movable cover 2 to move closer to or away from the temperature controller housing 1. The movable end of the electric push rod 7 is fixedly connected to the side wall of the movable cover 2 away from the temperature controller housing 1. The inner wall of the movable cover 2 is provided with a heat-insulating and breathable layer 8 that matches its shape. The temperature controller housing 1 is provided with a temperature sensor 16 and a controller 17 inside. The controller 17 is electrically connected to the electric push rod 7 and the temperature sensor 16.

[0034] In actual operation, when the temperature sensor 16 detects that the temperature inside the temperature controller housing 1 is higher than the set value, the temperature sensor 16 will transmit a signal to the controller 17. The controller 17 will control the electric push rod 7 to start, and drive the movable cover 2 to intermittently move closer to the temperature controller housing 1. When the movable cover 2 moves away from the temperature controller housing 1, because the rear sealing plate 101 has a connecting hole 15 for connecting the internal space of the temperature controller housing 1 and the movable cover 2, the overall space of the temperature controller housing 1 and the movable cover 2 increases, and the air pressure inside the temperature controller housing 1 and the movable cover 2 decreases. Outside air will enter the interior of the temperature controller housing 1 through the heat dissipation vent 23 to fill the air pressure, and then diffuse into the interior of the movable cover 2. When the movable cover 2 moves closer to the temperature controller housing 1, the air inside the movable cover 2 is compressed, and its release path is twofold:

[0035] A portion of the air inside the movable cover 2 enters the interior of the temperature controller housing 1 through the connecting hole 15 and then exits through the heat dissipation port 23, thus completing the heat exchange between the temperature controller housing 1 and the interior of the movable cover 2 and playing a role in heat dissipation. The dust filter 24 located inside the heat dissipation port 23 can remove dust from the outside air and prevent the outside air from carrying dust into the interior of the temperature controller housing 1 through the heat dissipation port 23. When the air inside the movable cover 2 passes through the connecting hole 15 and the temperature controller housing 1 and is blown out again from the heat dissipation port 23, it can play a role in "back-blowing" the dust filter 24 and remove the dust on the outer surface of the dust filter 24.

[0036] Some of the air inside the movable cover 2 will escape through the gap between the movable cover 2 and the side plate 103. The escaped air will blow over the outer surface of the side plate 103, which can not only remove dust from the outside of the side plate 103, but also cool the outside of the side plate 103. When the movable cover 2 moves back and forth outside the temperature controller housing 1, the heat insulation and breathable layer 8 located on the inner wall of the movable cover 2 can also remove dust from the outer surface of the side plate 103. Combined with the air escaping from between the movable cover 2 and the side plate 103, the dust removal effect on the outside of the side plate 103 is better, preventing dust from accumulating on the outside of the side plate 103 and accelerating the aging of the temperature controller housing 1, and also preventing the dust on the surface of the side plate 103 from affecting the heat dissipation of the internal components of the temperature controller housing 1.

[0037] In this invention, when the movable cover 2 moves back and forth outside the temperature controller housing 1, it can dissipate heat from the inside of the temperature controller housing 1. When the temperature controller housing 1 is in a low-temperature environment, the movable cover 2 can be moved closer to the temperature controller housing 1 by the electric push rod 7, so that the movable cover 2 covers the outside of the temperature controller housing 1 and covers the temperature controller housing 1. At this time, the heat dissipation vent 23 used to connect the temperature controller housing 1 with the external environment will also be blocked, preventing low temperature from entering the interior of the temperature controller housing 1 through the heat dissipation vent 23 and damaging its internal electrical components. In addition, the heat insulation and breathable layer 8 on the inner wall of the movable cover 2 can play a role in "heat insulation", that is, cold protection, preventing the invasion of external low temperature. It should be noted that the heat insulation and breathable layer 8 here can be made of sponge board, cotton cloth layer, etc. The heat insulation and breathable layer 8 not only has the function of heat insulation, but also has the function of cold protection. In addition to providing thermal insulation, the insulation layer 8 must also be breathable. This is to prevent heat exchange between the inside of the movable cover 2 and the outside environment from being affected by high temperatures, and to prevent gas inside the movable cover 2 from escaping through the gap between the movable cover 2 and the side plate 103, thereby achieving the effect of blowing dust off the outer surface of the side plate 103. At the same time, when the movable cover 2 moves away from the temperature controller housing 1, outside gas will also enter the interior of the movable cover 2 through the gap between the movable cover 2 and the side plate 103. The thermal insulation and breathable layer 8 can also filter dust in the outside air, preventing dust from entering the interior of the movable cover 2 and the temperature controller housing 1 through the gap between the movable cover 2 and the side plate 103. At the same time, the thermal insulation and breathable layer 8 can also prevent the movable cover 2 from causing wear or scratches on the outside of the temperature controller housing 1 when it moves back and forth outside the temperature controller housing 1, and also avoid noise generation.

[0038] Furthermore, in order to improve the thermal insulation effect of the movable cover 2 on the temperature controller housing 1 in low-temperature environments, an air cavity 9 is provided inside the movable cover 2. An air extraction component is provided in the area formed by the movable cover 2 and the rear sealing plate 101 to extract the gas inside the air cavity 9. The air extraction component can extract the air inside the air cavity 9, making the air inside the air cavity 9 scarce, or even reaching a vacuum state, which can effectively isolate the external cold source, thereby playing a better thermal insulation role and avoiding a shorter service life of the temperature controller housing 1 in high-altitude and cold environments.

[0039] In order to fix the temperature controller housing 1 on the transformer, a mounting plate 4 is fixedly provided on the temperature controller housing 1 near the front end. The bottom of the mounting plate 4 is provided with a base 31 to support the temperature controller housing 1. The base 31 not only supports the temperature controller housing 1, but also allows the temperature controller housing 1 to be installed on the transformer.

[0040] Specifically, the air extraction assembly includes a spring compression tube 11 that can be extended or compressed inside the movable cover 2. One end of the spring compression tube 11 is connected to the surface of the rear sealing plate 101, and the other end of the spring compression tube 11 is fixedly connected to the side wall of the movable cover 2 away from the temperature controller housing 1. The inner wall of the movable cover 2 is provided with a vacuum port 22 that connects the spring compression tube 11 and the air chamber 9. The outer wall of the movable cover 2 is provided with a balancing air pressure hole 21 that communicates with the air chamber 9. The rear sealing plate 101 is provided with a jet port 13 that communicates with the inside of the spring compression tube 11. The jet port 13, the balancing air pressure hole 21, and the vacuum port 22 are all provided with one-way solenoid valves 29, and the one-way solenoid valves 29 inside the jet port 13, the balancing air pressure hole 21, and the vacuum port 22 are all electrically connected to the controller 17.

[0041] When it is necessary to evacuate the inside of the air chamber 9, the controller 17 controls the one-way solenoid valve 29 inside the vacuum port 22 and the air jet port 13 to open. When the movable cover 2 moves away from the temperature controller housing 1, the spring compression tube 11 gradually extends, and the air inside the air chamber 9 will enter the inside of the spring compression tube 11 through the vacuum port 22. Conversely, when the movable cover 2 moves closer to the temperature controller housing 1, the spring compression tube 11 is gradually compressed, and the air inside the spring compression tube 11 will be ejected through the air jet port 13. This process is repeated until the air chamber 9 reaches a suitable vacuum level.

[0042] In practical applications, the air extraction component can be activated not only in low-temperature environments, but also when the ambient temperature is high. If the ambient temperature is higher than the temperature inside the temperature controller housing 1, moving the movable cover 2 back and forth to exchange heat will only cause the temperature inside the temperature controller housing 1 to gradually rise. In order to isolate the external heat source, the movable cover 2 can be placed on the outside of the temperature controller housing 1 and the heat dissipation vent 23 can be blocked. At the same time, the air extraction component is activated to evacuate the air chamber 9 to shield the external heat source.

[0043] When the temperature inside the temperature controller housing 1 is high, and the temperature controller housing 1 needs to exchange heat with the outside to dissipate heat, the one-way solenoid valve 29 on the balance air pressure hole 21 can be opened, and the outside gas (heat transfer medium) will enter the interior of the air chamber 9, so that the air pressure inside the air chamber 9 is balanced with the outside, thus avoiding affecting the heat transfer between the movable cover 2 and the outside environment.

[0044] Because there is a gap between the movable cover 2 and the side plate 103, some air will escape from between the movable cover 2 and the side plate 103 when the movable cover 2 approaches the temperature controller housing 1, thus preventing heat exchange inside the temperature controller housing 1. To avoid affecting the heat exchange effect inside the temperature controller housing 1, an air inlet 12 communicating with the inside of the spring compression tube 11 is provided on the rear sealing plate 101. The air inlet 12 is equipped with a one-way solenoid valve 29 electrically connected to the controller 17. In actual operation, when heat exchange between the temperature controller housing 1 and the external environment is required, the one-way solenoid valve 29 inside the balance air pressure hole 21 and the vacuum port 22 can be closed. Then, when the movable cover 2 gradually approaches the temperature controller housing 1, the air exchange effect will be achieved. When the temperature controller housing 1 moves away from the temperature controller housing 1 and the spring compression tube 11 extends, the gas in the external environment will enter the interior of the spring compression tube 11 through the heat dissipation port 23, the temperature controller housing 1, and the air inlet 12. When the movable cover 2 moves closer to the temperature controller housing 1 and compresses the spring compression tube 11, the gas inside the spring compression tube 11 will be ejected from the jet port 13 into the interior of the temperature controller housing 1 and blown out from the heat dissipation port 23 to achieve heat exchange inside the temperature controller housing 1. When the gas inside the spring compression tube 11 is compressed, all of it enters the interior of the temperature controller housing 1, ensuring a large airflow inside the temperature controller housing 1 when the movable cover 2 moves back and forth, resulting in good heat dissipation inside the temperature controller housing 1.

[0045] The movable cover 2 is provided with a dust scraping ring 3 at its port to scrape off the dust from the outer surface of the temperature controller housing 1. The dust scraping ring 3 is a rectangular frame structure that matches the outer surface of the temperature controller housing 1, and the outer surface of the dust scraping ring 3 is inclined from the movable cover 2 toward the temperature controller housing 1.

[0046] As the movable cover 2 moves closer to the temperature controller housing 1, the dust scraper ring 3 at the port of the movable cover 2 can scrape off the dust on the surface of the side plate 103. Simultaneously, the air escaping between the movable cover 2 and the side plate 103 further enhances the dust removal effect on the surface of the side plate 103. Furthermore, to prevent the mounting plate 4 from blocking the dust blown off the surface of the side plate 103, slots 5 are provided on the outer periphery of the mounting plate 4 around the temperature controller housing 1. Figure 1 As shown;

[0047] It should be noted that the dust scraper ring 3 here can be made of latex, silicone or polymer materials, etc. The dust scraper ring 3 should have a certain degree of hardness and should not cause scratches or noise on the outside of the side plate 103.

[0048] Since the direction of the air blown out from the air inlet 12 and the connecting hole 15 is fixed, in order to make the air entering the temperature controller housing 1 from the movable cover 2 more evenly distributed inside the temperature controller housing 1, that is, to make the heat exchange with the air inside the temperature controller housing 1 more sufficient, a deflection plate 14 is movably hinged to the inside of the temperature controller housing 1 near the rear sealing plate 101 by a rotating rod 28. The rotating rod 28 is fixedly connected to one end of the deflection plate 14 near the rear sealing plate 101. The rotating rod 28 can rotate back and forth around its own axis. When the rotating rod 28 rotates back and forth, it can drive the deflection plate 14 to swing back and forth, thereby dispersing and reversing the air blown into the temperature controller housing 1 from the air inlet 13 and the connecting hole 15, so that the air entering the temperature controller housing 1 from the air inlet 13 and the connecting hole 15 is more evenly distributed inside the temperature controller housing 1, so as to achieve a better heat exchange effect.

[0049] A coaxial spur gear 27 is fixed on the rotating rod 28. Inside the temperature controller housing 1, near the spur gear 27, there is a movable drive rod 20. The side of the drive rod 20 facing the spur gear 27 has a tooth set 26 that meshes with the spur gear 27. When the drive rod 20 moves back and forth, the tooth set 26 meshes with the spur gear 27, thereby driving the deflection plate 14 to swing back and forth.

[0050] One end of the drive rod 20 is fixedly connected to the inner wall of a set of side plates 103 via a compression spring 30. The other end of the drive rod 20 extends into the storage groove 18 on another set of side plates 103 and is fixedly connected to the movable column 19. When the compression spring 30 fixedly connected to the drive rod 20 is in its natural state, the movable column 19 extends out of the outer port of the storage groove 18. The inner wall of the movable cover 2 is provided with a pressing member to press the movable column 19 into the storage groove 18.

[0051] like Figure 2 and Figure 3 As shown, when the outer end of the movable column 19 is pressed, the movable column 19 will drive the drive rod 20 to move away from the inner wall of the movable cover 2. The toothed assembly 26 on the drive rod 20 will mesh with the spur gear 27 and drive the free end of the deflection plate 14 to deflect towards the receiving groove 18. When the pressing member releases the movable column 19, the movable column 19 will be reset under the action of the compression spring 30 fixedly connected to it. That is, the movable column 19 drives the drive rod 20 to move towards the receiving groove 18. At this time, the free end of the deflection plate 14 will deflect away from the receiving groove 18, thereby dispersing and reversing the air blown out from the jet nozzle 13 and the connecting hole 15, so that it is evenly distributed inside the temperature controller housing 1.

[0052] The pressing component includes a protrusion 10 fixedly connected to the inner wall of the movable cover 2. The protrusion 10 is provided in multiple sets, and the multiple sets of protrusion 10 are arranged in a matrix on the inner wall of the movable cover 2 facing the movable column 19. When the movable cover 2 moves outside the temperature controller housing 1, the protrusion 10 passes the outer end of the movable column 19, and the protrusion 10 will squeeze the outer end of the movable column 19, causing it to drive the drive rod 20 to move. When the drive rod 20 moves away from the protrusion 10, it causes the deflection plate 14 to deflect. When the protrusion 10 moves to a position that deviates from the end of the movable column 19, the drive rod 20 will be reset under the action of the compression spring 30 fixedly connected to it, and will drive the deflection plate 14 to deflect in the opposite direction again.

[0053] Working Principle: In actual operation, when the temperature sensor 16 detects that the temperature inside the temperature controller housing 1 is higher than the set value, the temperature sensor 16 will transmit a signal to the controller 17. The controller 17 controls the electric push rod 7 to start, and drives the movable cover 2 to intermittently move closer to the temperature controller housing 1. When the movable cover 2 moves away from the temperature controller housing 1, because the rear sealing plate 101 has a connecting hole 15 for connecting the internal space of the temperature controller housing 1 and the movable cover 2, the overall space of the temperature controller housing 1 and the movable cover 2 increases, and the air pressure inside the temperature controller housing 1 and the movable cover 2 decreases. Outside air will enter the interior of the temperature controller housing 1 through the heat dissipation vent 23 to fill the air pressure, and then diffuse into the interior of the movable cover 2. When the movable cover 2 moves closer to the temperature controller housing 1, the air inside the movable cover 2 is compressed, and its release path is twofold:

[0054] A portion of the air inside the movable cover 2 enters the interior of the temperature controller housing 1 through the connecting hole 15 and then exits through the heat dissipation port 23, thus completing the heat exchange between the temperature controller housing 1 and the interior of the movable cover 2 and playing a role in heat dissipation. The dust filter 24 located inside the heat dissipation port 23 can remove dust from the outside air and prevent the outside air from carrying dust into the interior of the temperature controller housing 1 through the heat dissipation port 23. When the air inside the movable cover 2 passes through the connecting hole 15 and the temperature controller housing 1 and is blown out again from the heat dissipation port 23, it can play a role in "back-blowing" the dust filter 24 and remove the dust on the outer surface of the dust filter 24.

[0055] Some of the air inside the movable cover 2 will escape through the gap between the movable cover 2 and the side plate 103. The escaped air will blow over the outer surface of the side plate 103, which can not only remove dust from the outside of the side plate 103, but also cool the outside of the side plate 103. When the movable cover 2 moves back and forth outside the temperature controller housing 1, the heat insulation and breathable layer 8 located on the inner wall of the movable cover 2 can also remove dust from the outer surface of the side plate 103. Combined with the air escaping from between the movable cover 2 and the side plate 103, the dust removal effect on the outside of the side plate 103 is better, preventing dust from accumulating on the outside of the side plate 103 and accelerating the aging of the temperature controller housing 1, and also preventing the dust on the surface of the side plate 103 from affecting the heat dissipation of the internal components of the temperature controller housing 1.

[0056] In this invention, when the movable cover 2 moves back and forth outside the temperature controller housing 1, it can dissipate heat from the inside of the temperature controller housing 1. When the temperature controller housing 1 is in a low-temperature environment, the movable cover 2 can be moved closer to the temperature controller housing 1 by the electric push rod 7, so that the movable cover 2 covers the outside of the temperature controller housing 1 and covers the temperature controller housing 1. At this time, the heat dissipation vent 23 used to connect the temperature controller housing 1 with the external environment will also be blocked, preventing low temperature from entering the interior of the temperature controller housing 1 through the heat dissipation vent 23 and damaging its internal electrical components. In addition, the heat insulation and breathable layer 8 on the inner wall of the movable cover 2 can play a role in "heat insulation", that is, cold protection, preventing the invasion of external low temperature. It should be noted that the heat insulation and breathable layer 8 here can be made of sponge board, cotton cloth layer, etc. The heat insulation and breathable layer 8 not only has the function of heat insulation, but also has the function of cold protection. In addition to providing thermal insulation, the insulation layer 8 must also be breathable. This is to prevent heat exchange between the inside of the movable cover 2 and the outside environment from being affected by high temperatures, and to prevent gas inside the movable cover 2 from escaping through the gap between the movable cover 2 and the side plate 103, thereby achieving the effect of blowing dust off the outer surface of the side plate 103. At the same time, when the movable cover 2 moves away from the temperature controller housing 1, outside gas will also enter the interior of the movable cover 2 through the gap between the movable cover 2 and the side plate 103. The thermal insulation and breathable layer 8 can also filter dust in the outside air, preventing dust from entering the interior of the movable cover 2 and the temperature controller housing 1 through the gap between the movable cover 2 and the side plate 103. At the same time, the thermal insulation and breathable layer 8 can also prevent the movable cover 2 from causing wear or scratches on the outside of the temperature controller housing 1 when it moves back and forth outside the temperature controller housing 1, and also avoid noise generation.

[0057] Furthermore, in order to improve the thermal insulation effect of the movable cover 2 on the temperature controller housing 1 in low-temperature environments, an air extraction component is provided in the area formed by the movable cover 2 and the rear sealing plate 101 to extract the gas inside the air chamber 9. The air extraction component can extract the air inside the air chamber 9, making the air inside the air chamber 9 scarce, or even reaching a vacuum state, which can effectively isolate the external cold source, thereby playing a better role in heat preservation and preventing the temperature controller housing 1 from having a shorter service life in cold environments.

Claims

1. A temperature controller housing for a transformer, characterized by: The temperature controller shell (1) comprises a display screen (102) arranged at the front end, a rear sealing plate (101) arranged at the rear end, and a side plate (103) between the rear sealing plate (101) and the display screen (102), wherein a heat dissipation opening (23) is formed in the side plate (103), a dustproof filter screen (24) is arranged at the outer opening of the heat dissipation opening (23), the outer side surface of the dustproof filter screen (24) is flush with the plane of the outer surface of the side plate (103), an activity cover (2) is arranged at the outer side of the rear end of the temperature controller shell (1), the inner wall of the activity cover (2) is in contact with the outer surface of the side plate (103), a communication hole (15) is formed in the rear sealing plate (101) for communication between the inside of the temperature controller shell (1) and the activity cover (2), and an electric push rod (7) is arranged on the rear sealing plate (101) for driving the activity cover (2) to move towards or away from the temperature controller shell (1), the movable end of the electric push rod (7) is fixedly connected with the side wall of the activity cover (2) away from the temperature controller shell (1), the inner wall of the activity cover (2) is provided with a heat preservation and ventilation layer (8) matched with the shape of the activity cover (2), and the inside of the temperature controller shell (1) is provided with a temperature sensor (16) and a controller (17), wherein the controller (17) is electrically connected with the electric push rod (7) and the temperature sensor (16). The inside of the activity cover (2) is provided with an air cavity (9), and the activity cover (2) and the rear sealing plate (101) form a region provided with an air extraction assembly for extracting air in the air cavity (9).

2. A temperature control instrument housing for a transformer according to claim 1, characterized in that: The air extraction assembly comprises a spring compression pipe (11) which is stretchable or compressible in the inside of the activity cover (2), one end of the spring compression pipe (11) is connected with the surface of the rear sealing plate (101), the other end of the spring compression pipe (11) is fixedly connected with the side wall of the activity cover (2) away from the temperature controller shell (1), the inner wall of the activity cover (2) is provided with a vacuum extraction opening (22) for communication between the spring compression pipe (11) and the air cavity (9), the outer side wall of the activity cover (2) is provided with a balanced air pressure hole (21) for communication with the air cavity (9), the rear sealing plate (101) is provided with a gas injection opening (13) for communication between the inside of the spring compression pipe (11), the inside of the gas injection opening (13), the balanced air pressure hole (21) and the vacuum extraction opening (22) are provided with one-way electromagnetic valves (29), and the one-way electromagnetic valves (29) in the gas injection opening (13), the balanced air pressure hole (21) and the vacuum extraction opening (22) are electrically connected with the controller (17).

3. A temperature control instrument housing for a transformer according to claim 2, characterised in that: The rear sealing plate (101) is further provided with an air inlet (12) for communication between the inside of the spring compression pipe (11), and the inside of the air inlet (12) is provided with a one-way electromagnetic valve (29) electrically connected with the controller (17).

4. A temperature control instrument housing for a transformer according to claim 3, characterized in that: The port of the activity cover (2) is provided with a dust scraping ring (3) for scraping dust on the outer surface of the temperature controller shell (1), the dust scraping ring (3) is a rectangular frame structure matched with the outer surface of the temperature controller shell (1), and the outer surface of the dust scraping ring (3) is inclined from the activity cover (2) to the temperature controller shell (1).

5. A temperature control instrument housing for a transformer according to claim 4, characterised in that: The deflector plate (14) is movably hinged by a rotating rod (28) near the rear sealing plate (101) inside the temperature controller shell (1), one end of the rotating rod (28) is fixedly connected to the deflector plate (14) near the rear sealing plate (101), and the rotating rod (28) can rotate back and forth around its own axis.

6. A temperature control instrument housing for a transformer according to claim 5, characterized in that: A circular gear (27) coaxial with the rotating rod (28) is fixedly arranged on the rotating rod (28), and a driving rod (20) movably arranged near the circular gear (27) inside the temperature controller shell (1) is provided, the side of the driving rod (20) facing the circular gear (27) is provided with a gear set (26) meshing with the circular gear (27), and the gear set (26) meshes with the circular gear (27) when the driving rod (20) moves back and forth.

7. A temperature control instrument housing for a transformer according to claim 6, characterized in that: One end of the driving rod (20) is fixedly connected to the inner wall of a group of side plates (103) through a compression spring (30), the other end of the driving rod (20) extends into the receiving groove (18) in the other group of side plates (103), and the movable column (19) is fixedly connected to the driving rod (20), and when the compression spring (30) fixedly connected to the driving rod (20) is in a natural state, the movable column (19) extends out of the outer port of the receiving groove (18), and the inner wall of the movable cover (2) is provided with a pressing piece pressing the movable column (19) into the receiving groove (18).

8. A temperature control instrument housing for a transformer according to claim 7, characterized in that: The pressing piece includes a protrusion (10) fixedly connected to the inner wall of the movable cover (2), and when the movable cover (2) moves outside the temperature controller shell (1), the protrusion (10) passes the outer side of the movable column (19).

9. A temperature control unit housing for a transformer according to claim 8, characterised in that: The protrusion (10) is provided in multiple groups, and the multiple groups of protrusions (10) are arranged in a matrix form on the inner wall of the movable cover (2) facing the movable column (19).

10. A temperature control instrument housing for a transformer according to claim 9, characterized in that: The mounting plate (4) is fixedly arranged near the front end of the temperature controller shell (1), the bottom of the mounting plate (4) is provided with a base (31) supporting the temperature controller shell (1), and the mounting plate (4) is provided with a slotted piece (5) around the temperature controller shell (1).

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