Digital temperature controller of power transformer

Abstract

The utility model discloses a digital temperature controller of a power transformer, and relates to the technical field of digital temperature controllers. The digital temperature controller of the power transformer comprises a temperature controller, the protection assembly comprises a first protection shell, a second protection shell is arranged on the outer side of the temperature controller, and a plurality of rubber columns used for supporting the second protection shell are fixedly connected to the surface of the first protection shell. The surface of the first protective shell is sleeved with three heat dissipation pipes, and the front side of the second protective shell is fixedly connected with a protective shell. Two cooling fans are installed in the protective shell, a plurality of vent holes are formed in the inclined face of the lower end of the protective shell, the spiral cooling pipes increase the contact area and time of air and the pipe wall, and the cooling fans and the vent holes are combined, so that the temperature in the temperature controller is effectively reduced through cooling circulation, and the service life of the temperature controller is prolonged. Accuracy of acquisition and processing of transformer oil temperature and winding temperature data is ensured, start and stop and alarm triggering of a cooling system are stably controlled, and safe operation of the power transformer is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of digital temperature controller technology, and in particular to a digital temperature controller for a power transformer. Background Technology

[0002] As a core device in power systems for voltage transformation and power transmission, the operating temperature of power transformers directly affects equipment lifespan and system safety. Digital temperature controllers, with their advantages of high-precision temperature monitoring, intelligent control, and digital display, have become a key component for ensuring the stable operation of power transformers. By collecting real-time data on transformer oil and winding temperatures and controlling the cooling system's start / stop and triggering alarms based on preset thresholds, digital temperature controllers effectively prevent transformer failures caused by overheating.

[0003] Traditional thermostat housings often employ simple perforated heat dissipation methods. Even with enhanced protection measures such as sealing and adding protective layers, airflow is further restricted, leading to a significant decrease in heat dissipation efficiency. The internal electronic components of the thermostat continuously generate heat during prolonged operation. If this heat cannot be dissipated promptly, the internal temperature will rise continuously, causing performance degradation, shortened lifespan, and even malfunctions due to overheating. This affects the accuracy and reliability of the thermostat's monitoring and control of transformer temperature. Therefore, this invention proposes a novel solution. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a digital temperature controller for power transformers. This controller can solve the problem that the internal electronic components of the temperature controller will continuously generate heat during long-term operation. If the heat cannot be dissipated in time, the internal temperature will continue to rise, causing the electronic components to degrade in performance, shorten their lifespan, or even malfunction due to overheating, thus affecting the accuracy and reliability of the temperature controller in monitoring and controlling the transformer temperature.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a digital temperature controller for a power transformer, comprising a temperature controller;

[0006] A protective component is disposed on the outside of the thermostat. The protective component includes a first protective shell, which is fixedly connected to the outside of the thermostat. A second protective shell is disposed on the outside of the thermostat. Multiple rubber pillars for supporting the second protective shell are fixedly connected to the surface of the first protective shell.

[0007] Multiple rubber pillars are fixedly connected to the second protective shell. The multiple rubber pillars are located on the upper, lower and left and right surfaces of the first protective shell. Three heat dissipation pipes are sleeved on the surface of the first protective shell. The protective shell is fixedly connected to the front side of the second protective shell.

[0008] The protective shell is hollow, with two cooling fans installed inside. The air intake ends of the three heat pipes extend into the interior of the protective shell, and multiple ventilation holes are provided on the sloping lower end of the protective shell.

[0009] Preferably, the protective component further includes two through holes, which are opened on the rear side of the second protective shell, and the inner walls of the two through holes are fitted with filter cotton.

[0010] A sealing rubber gasket is fixedly connected to the front surface of the thermostat to seal the gaps between the thermostat, the second protective housing, and the protective housing.

[0011] Preferably, all three heat pipes are spiral-shaped.

[0012] Preferably, a return spring is fixedly connected inside each of the plurality of rubber columns.

[0013] Preferably, two protective plates are fixedly connected to the front side of the second protective shell.

[0014] Preferably, the bottom of the second protective shell is fixedly connected to four support columns, and each of the four support columns has mounting holes on its surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The digital temperature controller of this power transformer features a spiral heat dissipation pipe that increases the contact area and time between the air and the pipe wall. Combined with a cooling fan and vents, it quickly introduces external cold air and exchanges heat with the heat generated by the temperature controller. The hot air is then discharged through the filter cotton on the back of the second protective casing. This heat dissipation cycle effectively reduces the internal temperature of the temperature controller, preventing the electronic components from degrading in performance and shortening their lifespan due to overheating. It ensures the accuracy of its data acquisition and processing of transformer oil temperature and winding temperature, stably controls the start and stop of the cooling system and alarm triggering, and guarantees the safe operation of the power transformer. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of a digital temperature controller for a power transformer according to the present invention;

[0019] Figure 2 This is a schematic diagram of the second protective shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the first protective shell of this utility model;

[0021] Figure 4 This is a schematic diagram of the heat dissipation pipe of this utility model;

[0022] Figure 5 This is a schematic diagram of the protective shell of this utility model;

[0023] Figure 6 This is a schematic diagram of the filter cotton of this utility model;

[0024] Figure 7 This is a schematic diagram of the reset spring of this utility model.

[0025] Reference numerals in the attached diagram: 1. Temperature controller; 2. First protective housing; 3. Rubber column; 4. Second protective housing; 5. Sealing rubber gasket; 6. Protective housing; 7. Protective plate; 8. Support column; 9. Heat dissipation pipe; 10. Vent hole; 11. Cooling fan; 12. Through hole; 13. Filter cotton; 14. Return spring. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-7This utility model provides a technical solution: a digital temperature controller for a power transformer, including a temperature controller 1 and a protective component. The protective component is disposed on the outside of the temperature controller 1. The protective component includes a first protective shell 2, which is fixedly connected to the outside of the temperature controller 1. A second protective shell 4 is disposed on the outside of the temperature controller 1. Multiple rubber pillars 3 for supporting the second protective shell 4 are fixedly connected to the surface of the first protective shell 2. The multiple rubber pillars 3 are all fixedly connected to the second protective shell 4 and are located on the upper, lower, left, and right surfaces of the first protective shell 2, respectively. Three heat dissipation pipes 9 are sleeved on the surface of the first protective shell 2. A protective shell 6 is fixedly connected to the front side of the second protective shell 4. The protective shell 6 is hollow and has two cooling fans 11 installed inside. The air inlets of the three heat dissipation pipes 9 extend into the interior of the protective shell 6. Multiple vent holes 10 are opened at the lower inclined surface of the protective shell 6.

[0031] The protective assembly also includes two through holes 12, which are opened on the rear side of the second protective housing 4. The inner walls of the two through holes 12 are fitted with filter cotton 13. A sealing rubber gasket 5 for sealing the gaps between the thermostat 1, the second protective housing 4 and the protective housing 6 is fixedly connected to the front surface of the thermostat 1.

[0032] All three heat pipes 9 are spiral-shaped.

[0033] Each of the multiple rubber pillars 3 has a return spring 14 fixedly connected inside.

[0034] Two protective plates 7 are fixedly connected to the front side of the second protective shell 4.

[0035] The bottom of the second protective shell 4 is fixedly connected to four support columns 8, and each of the four support columns 8 has mounting holes.

[0036] When using this device, the temperature controller 1 continuously collects oil temperature and winding temperature data during the operation of the power transformer, and also generates heat itself during operation. The first protective shell 2 conducts the heat inside the temperature controller 1 to the spiral heat dissipation pipe 9 fitted on its surface. When the cooling fan 11 is started, external cold air enters through the vent 10 on the sloping lower end of the protective shell 6. The protective shell 6 is hollow, providing space for air circulation, and the vent 10 on the sloping lower end of the protective shell can prevent rainwater from entering. The incoming cold air is guided into the air inlet of the heat dissipation pipe 9 inside the protective shell 6. The spiral heat dissipation pipe 9 increases the contact area and contact time between the air and the pipe wall, enhancing the heat exchange efficiency. The air after heat exchange flows with heat in the heat dissipation pipe 9, and then enters the gap between the first protective shell 2 and the second protective shell 4, further cooling the temperature controller 1. It is then discharged through the filter cotton 13 in the through hole 12 on the rear side of the second protective shell 4. The filter cotton 13 can filter dust and impurities in the air, ensuring a clean internal environment for the temperature controller 1 and preventing dust accumulation from affecting heat dissipation and the performance of electronic components.

[0037] The rubber column 3 connects the first protective shell 2 and the second protective shell 4, forming a gap between them to meet the requirements of airflow and heat dissipation pipe 9 installation; the return spring 14 inside the rubber column 3 can effectively buffer the vibration generated by the power transformer during operation, reduce the impact of vibration on the precision electronic components inside the thermostat 1, and extend the service life of the thermostat; the protective plate 7 on the front side of the second protective shell 4 can protect the sides of the thermostat 1 from collisions with external objects, and can also block sunlight and reduce reflection when observing the thermostat 1, making it easier for staff to read data; the sealing rubber gasket 5 seals the gap between the thermostat 1, the second protective shell 4 and the protective shell 6, enhances the overall sealing performance, prevents rainwater, dust and other substances from entering, and ensures the stable operation of the thermostat 1.

[0038] The four support columns 8 at the bottom of the second protective housing 4 have mounting holes on their surfaces for securing the thermostat to the power transformer. The support columns 8 not only provide reliable support for the thermostat, ensuring its stability during operation, but also keep the thermostat a certain distance from the mounting surface, preventing heat transfer from the mounting surface or a humid environment from affecting the thermostat's performance.

[0039] Furthermore, the spiral heat dissipation pipe 9 increases the contact area and time between the air and the pipe wall. Combined with the cooling fan 11 and the vent 10, it quickly introduces external cold air and exchanges heat with the heat generated by the temperature controller 1. The hot air is discharged through the filter cotton 13 on the rear side of the second protective shell 4. This heat dissipation cycle effectively reduces the internal temperature of the temperature controller 1, preventing the electronic components from degrading in performance and shortening their lifespan due to overheating. It ensures the accuracy of its data acquisition and processing of transformer oil temperature and winding temperature, stably controls the start and stop of the cooling system and alarm triggering, and ensures the safe operation of the power transformer.

[0040] The sealing rubber gasket 5 seals the gaps between the components to prevent rainwater and dust from entering and reduce corrosion to electronic components; the protective plate 7 protects the sides of the thermostat 1 from impact and reduces glare during observation; the rubber column 3 works in conjunction with the return spring 14 to buffer the vibration of the power transformer during operation and reduce damage to the precision components inside the thermostat 1; these protective measures work together to reduce the impact of external factors on the thermostat, extend its service life, reduce maintenance costs, and improve the reliability of the power system.

[0041] Structural Description: Temperature Controller 1: During the operation of the power transformer, it continuously collects oil temperature and winding temperature data. At the same time, it generates heat during its own operation. It is the core component for monitoring and controlling the temperature. By accurately collecting data, it controls the start and stop of the cooling system and triggers alarms based on preset thresholds to ensure the stable operation of the power transformer.

[0042] First protective outer shell 2: fixed on the outside of the thermostat 1, conducts the heat inside the thermostat 1 to the heat dissipation pipe 9 attached to the surface, and provides initial protection for the thermostat 1;

[0043] Rubber column 3: connects the first protective shell 2 and the second protective shell 4, so that a gap is formed between them to allow for air flow and the installation of heat dissipation pipe 9. The return spring 14 inside it works to buffer the vibration of the power transformer during operation and reduce the impact on the internal components of the temperature controller 1.

[0044] Second protective housing 4: works in conjunction with the first protective housing 2 to protect the thermostat 1. It is connected to the protective housing 6 and the protective plate 7 on the front, and to the support column 8 on the bottom. It has a through hole 12 on the rear to provide an installation base for other components and enhance the overall protection.

[0045] Sealing rubber gasket 5: Seals the gap between thermostat 1, second protective housing 4 and protective housing 6, enhances overall sealing, prevents rainwater and dust from entering, and protects internal electronic components;

[0046] Protective shell 6: It is hollow and has a cooling fan 11 installed inside. Ventilation holes 10 are opened on the bottom sloping surface to block rainwater and provide space for air circulation. It works with the cooling fan 11 to guide cold air into the heat dissipation pipe 9.

[0047] Protective plate 7: Fixed to the front of the second protective shell 4, it protects the two sides of the thermostat 1 from collisions with external objects, blocks sunlight and reduces reflection when observing the thermostat 1, and facilitates data reading;

[0048] Support column 8: Located at the bottom of the second protective shell 4, with mounting holes on the surface, it is used to securely install the thermostat on the power transformer, providing reliable support and keeping the thermostat at a certain distance from the mounting surface to avoid adverse factors of the mounting surface affecting the performance of the thermostat;

[0049] Heat dissipation pipe 9: It is spirally sleeved on the surface of the first protective shell 2, and the air inlet extends into the inside of the protective shell 6, increasing the contact area and time between the air and the pipe wall, enhancing the heat exchange efficiency, and transferring the heat of the temperature controller 1 to the air to achieve heat dissipation.

[0050] Vent 10: Located on the lower slope of the protective shell 6, it allows cold air to enter while blocking rainwater, serving as an entrance for cold air to enter the heat dissipation circulation.

[0051] Cooling fan 11: Installed inside the protective shell 6, when started, it draws external cold air into the protective shell 6 through the vent 10 and guides it into the heat pipe 9, accelerating airflow and enhancing the heat dissipation effect.

[0052] Through hole 12: Opened on the rear side of the second protective shell 4, providing an exhaust channel for the air after heat exchange;

[0053] Filter cotton 13: It is snapped into the inner wall of the through hole 12 to filter out dust and impurities in the air, ensuring a clean internal environment for the thermostat 1 and preventing dust from affecting heat dissipation and the performance of electronic components.

[0054] Reset spring 14: Fixed inside the rubber column 3, it cooperates with the rubber column 3 to buffer the vibration generated by the operation of the power transformer and protect the precision electronic components inside the thermostat 1.

[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A digital temperature controller for a power transformer, characterized in that: Including the thermostat (1); The protective component is located on the outside of the thermostat (1). The protective component includes a first protective shell (2), which is fixedly connected to the outside of the thermostat (1). A second protective shell (4) is provided on the outside of the thermostat (1). Multiple rubber pillars (3) for supporting the second protective shell (4) are fixedly connected to the surface of the first protective shell (2). Multiple rubber pillars (3) are fixedly connected to the second protective shell (4). Multiple rubber pillars (3) are located on the upper and lower and left and right surfaces of the first protective shell (2). Three heat dissipation pipes (9) are sleeved on the surface of the first protective shell (2). A protective shell (6) is fixedly connected to the front side of the second protective shell (4). The protective shell (6) is hollow. Two cooling fans (11) are installed inside the protective shell (6). The air inlet ends of the three heat pipes (9) extend into the interior of the protective shell (6). Multiple ventilation holes (10) are opened on the lower slope of the protective shell (6).

2. The digital temperature controller for a power transformer according to claim 1, characterized in that: The protective assembly also includes two through holes (12), which are opened on the rear side of the second protective shell (4), and the inner walls of the two through holes (12) are fitted with filter cotton (13). A sealing rubber gasket (5) is fixedly connected to the front surface of the thermostat (1) to seal the gap between the thermostat (1), the second protective shell (4) and the protective shell (6).

3. The digital temperature controller for a power transformer according to claim 1, characterized in that: All three heat dissipation pipes (9) are spiral-shaped.

4. A digital temperature controller for a power transformer according to claim 1, characterized in that: Each of the rubber columns (3) has a return spring (14) fixedly connected inside.

5. A digital temperature controller for a power transformer according to claim 1, characterized in that: The front side of the second protective shell (4) is fixedly connected to two protective plates (7).

6. A digital temperature controller for a power transformer according to claim 1, characterized in that: The bottom of the second protective shell (4) is fixedly connected with four support columns (8), and the surface of each of the four support columns (8) is provided with mounting holes.

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