An isolated transformer temperature controller

By introducing a buffer component into the thermostat, the problems of loose internal components and poor contact caused by vibration are solved, resulting in higher temperature measurement accuracy and equipment stability, and extending the service life of the thermostat.

CN224555956UActive Publication Date: 2026-07-24HANGZHOU HUALI INSTR & METER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU HUALI INSTR & METER CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing isolation transformer temperature controllers are prone to loosening and damage of internal electronic components under long-term vibration environments, and poor contact in connection lines may affect the accuracy of temperature measurement and control, or even lead to malfunctions.

Method used

The core buffer structure is formed by a buffer component, including a metal ring, damper, return spring and support pad, which absorbs and dissipates vibration energy and reduces the impact of vibration on the temperature controller.

Benefits of technology

This improved the detection accuracy of the temperature controller, extended its service life, and enhanced the stability and reliability of equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an isolation type transformer temperature controller relates to temperature controller technical field. The isolation type transformer temperature controller, including temperature controller shell, temperature controller shell buffer subassembly includes two mounting blocks, and the lower extreme of temperature controller shell is provided with the metal ring, and the lower extreme fixedly connected with the mounting panel of metal ring, the inboard of metal ring is installed with damper, and the surface of damper is sleeved with first reset spring, and the inner wall fixedly connected with two support pads of metal ring, and metal ring, support pad, damper and first reset spring jointly constitute the core buffer structure of temperature controller, and damper is responsible for converting vibration kinetic energy into heat energy and other forms of energy and dissipating, and first reset spring produces elastic deformation when vibrating, and makes metal ring reset through reverse spring force, and the buffer vibration displacement, and support pad and its inside second reset spring further enhance the buffering effect, improve temperature control accuracy, prolong temperature controller service life, enhance equipment operation stability.
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Description

Technical Field

[0001] This utility model relates to the field of temperature controller technology, and in particular to an isolation transformer temperature controller. Background Technology

[0002] In power systems, isolation transformers are important electrical equipment widely used in various locations. The thermostat is one of the key components of an isolation transformer; its function is to monitor the transformer's temperature in real time and control the heat dissipation device according to temperature changes, ensuring the transformer operates within a safe temperature range. This is crucial for ensuring the stable operation and lifespan of the transformer.

[0003] In practical applications, isolation transformers generate vibrations during operation, primarily due to electromagnetic forces and the magnetostriction of the silicon steel sheets in the core. These vibrations are transmitted to the temperature controller installed on the transformer, negatively impacting its normal operation. The transformer core is composed of stacked silicon steel sheets, which undergo minute expansion and contraction under an alternating magnetic field—a process known as magnetostriction. Although these deformations are small, the accumulation of numerous silicon steel sheets causes the entire core to vibrate, which is then transmitted through the transformer oil and tank, causing vibrations in the transformer casing. Traditionally, temperature controllers are typically installed by directly fixing them to the transformer casing.

[0004] Under long-term vibration, the internal electronic components of the thermostat are prone to loosening and damage, and the connection lines may also have poor contact. This can affect the accurate measurement and control of the transformer temperature by the thermostat, and even cause the thermostat to malfunction, affecting the detection accuracy of the thermostat. Therefore, this utility model proposes a new solution. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an isolated transformer temperature controller that can solve the problem that the internal electronic components of the temperature controller are prone to loosening and damage under long-term vibration environment, and the connection lines may also have poor contact, which will affect the accurate measurement and control of the transformer temperature by the temperature controller, and even lead to the failure of the temperature controller and affect the detection accuracy of the temperature controller.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an isolation transformer temperature controller, including a temperature controller housing;

[0007] A buffer assembly is provided at the lower end of the thermostat housing. The thermostat housing buffer assembly includes two mounting blocks, both of which are fixedly connected to the side of the thermostat housing. A metal ring is provided at the lower end of the thermostat housing, and the metal ring is fixed to the two mounting blocks by bolts.

[0008] A mounting plate is fixedly connected to the lower end of the metal ring;

[0009] A damper is installed on the inner side of the metal ring, and a first return spring is sleeved on the surface of the damper. Both the upper and lower ends of the first return spring are fixedly connected to the inner wall of the metal ring.

[0010] The inner wall of the metal ring is fixedly connected to two support pads.

[0011] Preferably, there are two buffer components, each symmetrically arranged at the lower end of the thermostat housing.

[0012] Preferably, each of the four support pads has a second return spring fixedly connected inside.

[0013] Preferably, both mounting plates have mounting holes on their surfaces.

[0014] Preferably, a rain shield is fixedly connected to the front end of the thermostat housing, and a rubber pad is fixedly connected to the inner wall of the thermostat housing.

[0015] Preferably, the thermostat is fixedly connected to the inside of the thermostat housing by bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The core buffer structure of this isolation transformer temperature controller consists of a metal ring, a support pad, a damper, and a first return spring. The metal ring serves as a connecting and supporting component, providing installation positions for other components. The damper is responsible for converting vibrational kinetic energy into heat and other forms of energy and dissipating it. The first return spring undergoes elastic deformation during vibration, and the reverse elastic force resets the metal ring, buffering vibration displacement. The support pad and its internal second return spring further enhance the buffering effect, improve temperature control accuracy, extend the service life of the temperature controller, and enhance equipment operational stability. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the structure of an isolation transformer temperature controller according to the present invention;

[0020] Figure 2 This is a schematic diagram of the thermostat housing of this utility model;

[0021] Figure 3 This is a schematic diagram of the rubber pad of this utility model;

[0022] Figure 4 This is a schematic diagram of the metal ring of this utility model;

[0023] Figure 5 This is a schematic diagram of the second reset spring of this utility model.

[0024] Reference numerals in the attached drawings: 1. Thermostat housing; 2. Mounting block; 3. Metal ring; 4. Mounting plate; 5. Support pad; 6. Damper; 7. First return spring; 8. Second return spring; 9. Rubber pad; 10. Rain shield; 11. Thermostat. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Please see Figure 1-5 This utility model provides a technical solution: an isolation transformer temperature controller, including a temperature controller housing 1 and a buffer assembly. The buffer assembly is located at the lower end of the temperature controller housing 1. The buffer assembly of the temperature controller housing 1 includes two mounting blocks 2, both of which are fixedly connected to the side of the temperature controller housing 1. A metal ring 3 is provided at the lower end of the temperature controller housing 1. The metal ring 3 is fixed to the two mounting blocks 2 by bolts. A mounting plate 4 is fixedly connected to the lower end of the metal ring 3. A damper 6 is installed on the inner side of the metal ring 3. A first return spring 7 is sleeved on the surface of the damper 6. Both the upper and lower ends of the first return spring 7 are fixedly connected to the inner wall of the metal ring 3. Two support pads 5 are fixedly connected to the inner wall of the metal ring 3.

[0030] There are two buffer components, each symmetrically arranged at the lower end of the thermostat housing 1.

[0031] Each of the four support pads 5 has a second return spring 8 fixedly connected inside.

[0032] Both mounting plates 4 have mounting holes on their surfaces.

[0033] A rain shield 10 is fixedly connected to the front end of the thermostat housing 1, and a rubber pad 9 is fixedly connected to the inner wall of the thermostat housing 1.

[0034] The thermostat 11 is fixedly connected to the inside of the thermostat housing 1 by bolts.

[0035] When using this device, the thermostat is installed on the transformer using bolts and connectors through the mounting holes on the surface of the mounting plate 4. Two buffer components are symmetrically distributed at the lower end of the thermostat housing 1. This symmetrical structure allows the thermostat to remain balanced after installation and evenly withstand vibrations from the transformer.

[0036] When the transformer vibrates during operation, the vibration is transmitted to the metal ring 3 through the mounting plate 4. At this time, the buffer assembly begins to function. The damper 6 installed inside the metal ring 3 can convert the kinetic energy of the vibration into heat energy and other forms of energy and dissipate it, thereby reducing the intensity of the vibration. At the same time, the first return spring 7 sleeved on the surface of the damper 6 will undergo elastic deformation when vibration occurs. When the vibration causes the metal ring 3 to shift, the first return spring 7 will generate a reverse elastic force to try to restore the metal ring 3 to its initial position, thus playing a role in buffering and resetting.

[0037] The support pad 5 on the inner wall of the metal ring 3 and the second return spring 8 fixedly connected inside it further enhance the buffering effect. Under the continuous action of vibration, the support pad 5 can play a certain role in buffering and isolation, reducing the direct transmission of vibration to the thermostat housing 1. The second return spring 8 generates corresponding elastic force when the support pad 5 is squeezed or stretched, and works in conjunction with the first return spring 7 to further absorb and buffer vibration energy, ensuring that the thermostat housing 1 can minimize the impact of vibration and maintain a relatively stable state.

[0038] In a stable environment, the thermostat 11 can accurately monitor the transformer temperature. When the transformer temperature changes, the thermostat 11 can control the start or stop of the heat dissipation device according to the preset temperature threshold to maintain the transformer operating within a safe temperature range. The rubber pad 9 on the inner wall of the thermostat housing 1 can, on the one hand, play a certain role in vibration reduction, reducing the displacement of the thermostat 11 caused by minor vibrations, and on the other hand, it can also protect the thermostat 11 from damage caused by hard collision with the thermostat housing 1. The rain shield 10 fixedly connected to the front end of the thermostat housing 1 can shield the thermostat 11 from rainwater, preventing rainwater from entering the interior of the thermostat housing 1, affecting the normal operation of the thermostat 11, and extending its service life.

[0039] Furthermore, the metal ring 3, support pad 5, damper 6, and first return spring 7 together constitute the core buffer structure of the thermostat. The metal ring 3 serves as a connecting and supporting component, providing installation positions for other components. The damper 6 is responsible for converting vibrational kinetic energy into heat energy and other forms of energy and dissipating it. The first return spring 7 undergoes elastic deformation during vibration, and the metal ring 3 is reset through a reverse elastic force, thus buffering vibration displacement. The support pad 5 and its internal second return spring 8 further enhance the buffering effect, improve temperature control accuracy, extend the service life of the thermostat, and enhance the operational stability of the equipment.

[0040] Structural Description: Thermostat Housing 1: As an overall frame, it protects the internal thermostat 11 and other components, provides installation space, ensures the orderly assembly of each component, and is connected to the buffer assembly to reduce the impact of vibration on internal components;

[0041] Mounting block 2: Fixed to the side of the thermostat housing 1, used to connect the metal ring 3, so that the buffer assembly is firmly connected to the thermostat housing, ensuring that vibration energy is smoothly transmitted to the buffer assembly.

[0042] Metal ring 3: It is fixed to the mounting block 2 by bolts, and the lower end is connected to the mounting plate 4. The damper 6, the first return spring 7 and the support pad 5 are installed on the inner side; it provides the installation position for other buffer components and is a key connecting component for vibration transmission and buffering.

[0043] Mounting plate 4: Mounting holes are provided on the surface for mounting the thermostat onto the transformer, ensuring a secure connection between the thermostat and the transformer, and transmitting the transformer's vibrations to the metal ring 3.

[0044] Support pad 5: Installed on the inner wall of metal ring 3, it plays a role in buffering and isolating vibration, reducing the direct transmission of vibration to the thermostat housing 1. The second return spring 8 inside enhances the buffering effect.

[0045] Damper 6: Installed inside the metal ring 3, it converts vibration kinetic energy into heat energy and other forms of energy and dissipates them, directly weakening the vibration intensity. It is the core component for buffering vibration.

[0046] First return spring 7: It is sleeved on the surface of damper 6 and fixed at both ends to the inner wall of metal ring 3; it generates elastic deformation during vibration, and resets metal ring 3 through reverse elastic force, buffering vibration displacement, and working in conjunction with damper 6 to reduce vibration impact;

[0047] The second return spring 8 is fixed inside the support pad 5. When the support pad 5 is squeezed or stretched, it generates elastic force and works in conjunction with the first return spring 7 to further absorb and buffer vibration energy and enhance the buffering effect.

[0048] Rubber pad 9: It is fixed to the inner wall of the thermostat housing 1. On the one hand, it reduces vibration and reduces the displacement of the thermostat 11 caused by small vibrations. On the other hand, it protects the thermostat 11 and prevents it from being damaged by hard collision with the thermostat housing 1.

[0049] Rain shield 10: Fixed to the front end of the thermostat housing 1, it protects the thermostat 11 from rainwater, prevents rainwater from entering the thermostat housing 1 and affecting its normal operation, and extends the service life of the thermostat.

[0050] Thermostat 11: Installed inside the thermostat housing 1, it monitors the transformer temperature and controls the start or stop of the heat dissipation device according to the preset temperature threshold to maintain the transformer operating within a safe temperature range. It is the core component for realizing the temperature control function.

[0051] 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. An isolation-type transformer temperature controller, characterized in that: Including the thermostat housing (1); A buffer assembly is provided at the lower end of the thermostat housing (1). The buffer assembly of the thermostat housing (1) includes two mounting blocks (2). Both mounting blocks (2) are fixedly connected to the side of the thermostat housing (1). A metal ring (3) is provided at the lower end of the thermostat housing (1). The metal ring (3) is fixed to the two mounting blocks (2) by bolts. The lower end of the metal ring (3) is fixedly connected to a mounting plate (4); A damper (6) is installed on the inner side of the metal ring (3), and a first return spring (7) is sleeved on the surface of the damper (6). Both the upper and lower ends of the first return spring (7) are fixedly connected to the inner wall of the metal ring (3). The inner wall of the metal ring (3) is fixedly connected to two support pads (5).

2. The isolation transformer temperature controller according to claim 1, characterized in that: The number of buffer components is two, which are symmetrically arranged at the lower end of the thermostat housing (1).

3. The isolation transformer temperature controller according to claim 1, characterized in that: Each of the four support pads (5) is fixedly connected to a second return spring (8).

4. The isolation transformer temperature controller according to claim 1, characterized in that: Both mounting plates (4) have mounting holes on their surfaces.

5. The isolation transformer temperature controller according to claim 1, characterized in that: A rain shield (10) is fixedly connected to the front end of the thermostat housing (1), and a rubber pad (9) is fixedly connected to the inner wall of the thermostat housing (1).

6. The isolation transformer temperature controller according to claim 1, characterized in that: The thermostat (11) is fixedly connected to the inside of the thermostat housing (1) by bolts.