Voltage stabilizer with overheat alarm structure
By introducing a combination of thermally conductive copper blocks and arc-shaped alloy strips into the voltage regulator, and utilizing the thermal deformation of shape memory alloys to trigger alarms, the problem of the lack of overheat alarms in traditional voltage regulators is solved, achieving simple and efficient overheat detection and alarm, and reducing costs.
Patent Information
- Application Number
- CN202520244807.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Traditional oil-immersed voltage regulators lack an overheat alarm mechanism, making it impossible to detect overheating in a timely manner, and automated monitoring devices increase construction and installation costs.
A voltage regulator with an overheat alarm structure was designed. The oil temperature is transferred to the arc-shaped alloy strip through a heat-conducting copper block. The thermoelastic deformation of the shape memory alloy drives the copper end to trigger the alarm and the light strip assembly, thus realizing a simple overheat alarm.
It enables timely detection and alarm in case of overheating, has a simple structure, stable operation, and avoids additional construction and installation costs.
Smart Images

Figure CN223770591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of voltage regulator technology, and in particular to a voltage regulator with an overheat alarm structure. Background Technology
[0002] A voltage regulator mainly consists of a voltage regulation circuit, a control circuit, and a servo motor. Different types of voltage regulators may differ in their internal components and specific implementation methods, but the basic goal is to maintain a stable output voltage by adjusting the state of the circuit components.
[0003] During the operation of a voltage regulator, overheating may occur due to overload, ambient temperature, or poor heat dissipation. Some traditional oil-immersed voltage regulators generally do not have an overheat alarm mechanism. If an automated monitor is used, it will increase the construction and installation costs. Therefore, there is an urgent need for a voltage regulator with an overheat alarm structure. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a voltage regulator with an overheat alarm structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A voltage regulator with an overheat alarm structure includes an oil-immersed voltage regulator body. A recessed mounting groove is provided on one side of the oil tank position of the oil-immersed voltage regulator body. A control box is installed on the outside of the mounting groove. The top wall of the mounting groove has an opening to connect to the inside of the oil tank. A heat-conducting copper block is installed at the opening. An arc-shaped alloy strip is connected to one side of the heat-conducting copper block. A pair of copper ends are installed on the bottom side of the arc-shaped alloy strip and extend into the inside of the control box.
[0007] The upper part of the arc-shaped alloy strip is mounted on the top wall of the mounting groove by a mounting plate, and the upper wall of the arc-shaped alloy strip is in direct contact with the heat-conducting copper block. A guide post is installed in the middle of the bottom end of the mounting plate, and a connecting plate is slidably mounted on the upper limit of the guide post. The connecting plate is connected to the bottom wall of the arc-shaped alloy strip, and a pair of copper ends are installed on the connecting plate.
[0008] In addition, a preferred structure is that a return spring is installed at the bottom center of the mounting plate, and the return spring is sleeved on the outer wall of the guide post and connected to the connecting plate.
[0009] In addition, a preferred structure is that a support spring is installed on the bottom wall of the mounting groove, and the support spring is sleeved on the outer wall of the guide post and connected to the connecting plate.
[0010] Furthermore, in a preferred configuration, one end of the reset rod is slidably mounted on the guide post, and the other end passes through the partition and exits through the groove in the middle of the control box.
[0011] In addition, a preferred structure is that the control box is externally provided with an alarm assembly and a light strip assembly, the alarm assembly and the light strip assembly are electrically connected to the contact copper sheet, and the contact copper sheet is installed inside the control box and corresponds to the position of the copper end.
[0012] Furthermore, in a preferred configuration, the copper end is engaged within the contact copper sheet as it descends.
[0013] Furthermore, in a preferred configuration, the alarm assembly, the light strip assembly, and the battery assembly are electrically connected.
[0014] The beneficial effects of this utility model are as follows:
[0015] In this invention, the heat-conducting copper block transfers the overheated oil temperature to the arc-shaped alloy strip. The arc-shaped alloy strip deforms under heat and, in conjunction with the return spring, pushes the copper end downward. The copper end moves downward within the control box and contacts the contact copper plate of the alarm mechanism, thereby connecting the circuit to activate the alarm mechanism. Its structure is simple and its operation is stable, and it detects overheating promptly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the external structure of a voltage regulator with an overheat alarm structure proposed in this utility model;
[0017] Figure 2 This is an exploded view of the internal structure of the mounting groove proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the mounting groove proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the arc-shaped alloy strip installation structure proposed in this utility model.
[0020] In the diagram: 1. Oil-immersed voltage regulator body; 2. Control box; 21. Contact copper sheet; 22. Battery assembly; 3. Alarm assembly; 4. Light strip assembly; 5. Mounting slot; 6. Partition plate; 7. Slide groove one; 8. Support spring; 9. Reset spring; 10. Arc-shaped alloy strip; 101. Mounting plate; 11. Reset rod; 12. Guide post; 13. Heat-conducting copper block; 14. Connecting plate; 141. Copper end. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-4A voltage regulator with an overheat alarm structure includes an oil-immersed voltage regulator body 1. A recessed mounting groove 5 is provided on one side of the oil tank position of the oil-immersed voltage regulator body 1. A control box 2 is installed on the outside of the mounting groove 5. The top wall of the mounting groove 5 has a slot to connect to the inside of the oil tank. A heat-conducting copper block 13 is installed at the slot. An arc-shaped alloy strip 10 is connected to one side of the heat-conducting copper block 13. A pair of copper ends 141 are installed on the bottom side of the arc-shaped alloy strip 10. The copper ends 141 extend into the inside of the control box 2.
[0023] Furthermore, the upper part of the arc-shaped alloy strip 10 is mounted on the top wall of the mounting groove 5 by the mounting plate 101, and the upper wall of the arc-shaped alloy strip 10 is in direct contact with the heat-conducting copper block 13. A guide post 12 is installed in the middle of the bottom end of the mounting plate 101, and a connecting plate 14 is slidably mounted on the upper limit of the guide post 12. The connecting plate 14 is connected to the bottom wall of the arc-shaped alloy strip 10, and a pair of copper end caps 141 are installed on the connecting plate 14.
[0024] Furthermore, a reset spring 9 is installed at the bottom center of the mounting plate 101. The reset spring 9 is sleeved on the outer wall of the guide post 12 and connected to the connecting plate 14.
[0025] Furthermore, a support spring 8 is installed on the bottom wall of the mounting groove 5. The support spring 8 is sleeved on the outer wall of the guide post 12 and connected to the connecting plate 14.
[0026] Furthermore, one end of the reset rod 11 is slidably mounted on the guide post 12, and the other end passes through the partition 6 and exits through the groove 7 opened in the middle of the control box 2.
[0027] Furthermore, the control box 2 is externally equipped with an alarm assembly 3 and a light strip assembly 4. The alarm assembly 3 and the light strip assembly 4 are electrically connected to the contact copper piece 21. The contact copper piece 21 is installed inside the control box 2 and corresponds to the position of the copper end 141.
[0028] Furthermore, when the copper terminal 141 moves downward, it engages with the contact copper piece 21, thereby allowing the current in the battery assembly 22 to pass through the copper terminal 141 and the contact copper piece 21 in sequence to activate the alarm assembly 3 and the light strip assembly 4.
[0029] Furthermore, the alarm assembly 3, the light strip assembly 4, and the battery assembly 22 are electrically connected.
[0030] In this embodiment, an installation groove 5 is provided in the oil tank part of the oil-immersed voltage regulator body 1. A heat-conducting copper block 13 for sensing oil temperature is provided in the installation groove 5. The heat-conducting copper block 13 directly transfers the temperature to the arc-shaped alloy strip 10. The arc-shaped alloy strip 10 deforms when heated, and when the oil temperature reaches a certain threshold, the arc-shaped alloy strip 10 generates the maximum deformation. As the reset spring 9 gradually returns, the arc-shaped alloy strip 10 drives the connecting plate 14 and the copper end 141 to move downward. The copper end 141 passes through the partition 6 and extends into the control box 2. The contact copper sheet 21 in the control box 2 contacts the copper end 141. At this time, the current in the battery assembly 22 passes through, causing the alarm assembly 3 and the light strip assembly 4 to emit sound and light.
[0031] In actual use, after the overheating treatment is completed, the temperature of the arc-shaped alloy strip 10 returns to normal. At this time, the reset rod 11 is pulled up and the material properties of the arc-shaped alloy strip 10 are used to reset it.
[0032] It is worth noting that the working principle of voltage regulators is already existing technology and will not be explained further.
[0033] It is worth noting that the partition 6, mounting plate 101, reset rod 11, guide post 12, and connecting plate 14 are non-conductive.
[0034] It is worth noting that the elastic force of the reset spring 9 is greater than that of the support spring 8, and the support spring 8 only serves to support the reset rod 11.
[0035] It is worth noting that the arc-shaped alloy strip 10 is specifically a shape memory alloy, which has a shape memory effect through thermoelastic and martensitic phase transformation and its inverse. In this mechanism, the arc-shaped alloy strip 10 is heated and deformed to drive the copper end 141 to activate the alarm component 3 and the light strip component 4.
[0036] The deformation principle and materials of shape memory alloys, which were not explained in detail above, are already existing technologies and will not be explained further.
[0037] It is worth noting that a seal is provided at the connection between the heat-conducting copper block 13 and the mounting groove 5 to isolate oil. This is easy to understand intuitively, and the seal is a conventional feature in the field, so it will not be explained further.
[0038] It is worth noting that the copper terminal 141 and the contact copper plate 21 are combined to form a switch structure, which works on the same principle as the toggle switch commonly seen in daily life. This is easy to understand intuitively and will not be explained further.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A voltage stabilizer having an overheat alarm structure, comprising an oil-immersed voltage stabilizer body (1), a reset lever (11), characterized in that, The oil tank position side of the oil-immersed voltage stabilizer body (1) is provided with an inner recessed mounting groove (5), the outer side of the mounting groove (5) is provided with a control box (2), and the top wall of the mounting groove (5) is provided with a slot to communicate with the inside of the oil tank, and a heat-conducting copper block (13) is installed at the slot, one side of the heat-conducting copper block (13) is connected with an arc-shaped alloy strip (10), one side of the bottom of the arc-shaped alloy strip (10) is provided with a pair of copper end heads (141), and the copper end heads (141) extend into the inside of the control box (2). The upper part of the arc-shaped alloy strip (10) is installed on the top wall of the mounting groove (5) by a mounting plate (101), the upper wall of the arc-shaped alloy strip (10) is in direct contact with the heat-conducting copper block (13), the bottom end of the mounting plate (101) is provided with a guide column (12), a connecting plate (14) is slidingly installed on the guide column (12), the connecting plate (14) is connected with the bottom wall of the arc-shaped alloy strip (10), and a pair of copper end heads (141) are installed on the connecting plate (14).
2. The voltage regulator with overheat alarm structure according to claim 1, characterized in that, The bottom end of the mounting plate (101) is provided with a reset spring (9), which is sleeved and installed on the outer wall of the guide column (12) and connected with the connecting plate (14).
3. The voltage regulator with overheat alarm structure according to claim 1, wherein, The bottom wall of the mounting groove (5) is provided with a supporting spring (8), which is sleeved and installed on the outer wall of the guide column (12) and connected with the connecting plate (14).
4. The voltage regulator with overheat alarm structure according to claim 1, wherein, One end of the reset rod (11) is slidingly installed on the guide column (12), and the other end passes through the partition plate (6) and penetrates the sliding slot (7) formed in the middle of the control box (2).
5. The voltage regulator with overheat alarm structure according to claim 1, wherein, The control box (2) is provided with an alarm component (3) and a light bar component (4), the alarm component (3) and the light bar component (4) are electrically connected with a contact copper sheet (21), the contact copper sheet (21) is installed in the control box (2) and corresponds to the position of the copper end head (141).
6. The voltage regulator with overheat alarm structure according to claim 1, wherein, When the copper end head (141) descends, the copper end head (141) is clamped in the contact copper sheet (21).
7. The voltage regulator with overheat alarm structure according to claim 5, wherein, The alarm component (3) and the light bar component (4) are electrically connected with a battery component (22).