Anti-overloading structure of micro-integrated equipment

Abstract

The utility model belongs to the technical field of circuit protection, and particularly relates to an anti-overload structure of micro-integrated equipment, which comprises an overload protector body, a reset rod and connecting contact pieces, the reset rod is movably inserted into an inner cavity of the overload protector body, the connecting contact pieces are arranged at the bottom of the overload protector body and are symmetrically arranged, and the reset rod is movably inserted into the inner cavity of the overload protector body. The overload protector comprises an overload protector body, an overload detection iron sheet is arranged on the surface of the overload protector body, a resistance heating wire is movably arranged on the surface of the overload protector body, the two ends of the resistance heating wire are connected with mounting seats, mounting grooves are formed in the positions, located at the two ends of the overload detection iron sheet, of the surface of the overload protector body, and the mounting seats are fixed in the mounting grooves through countersunk bolts. According to the overload protector, the resistance heating wire is installed on one side of the overload detection iron sheet, the resistance heating wire generates heat after being electrified, the heat is transmitted to the overload detection iron sheet to enable the overload detection iron sheet to deform, and therefore overload detection can be actively carried out on the overload protector to detect whether the function of the overload protector is normal or not.

Description

Technical Field

[0001] This utility model relates to the field of circuit protection technology, specifically to an overload protection structure for micro-integrated devices. Background Technology

[0002] Overload protection devices are installed to prevent overheating and damage to the main power supply line due to overload. Overload is a broad term that can refer to excessive load on electrical equipment or excessive force on an object. Protection against these "overload" behaviors is collectively called overload protection. In communication power systems, the function of automatically disconnecting power to equipment due to excessive load is called overload protection.

[0003] Existing overload protection structures can protect circuits from overload during use, but the overload protection action is passively triggered. During use, it is impossible to actively detect the condition of the overload protection structure. When the overload protection structure fails, it cannot be detected in time, which leads to certain safety hazards in the operation of the circuit. In order to solve the above problems, this application proposes an overload protection structure for micro-integrated devices. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes an overload protection structure for a micro-integrated device. A resistance heating wire is installed on one side of the overload detection iron plate. When the resistance heating wire is energized, it generates heat, which is transferred to the overload detection iron plate, causing it to deform. This allows for active overload detection of the overload protector, thereby verifying whether the overload protector is functioning properly and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides an overload protection structure for a micro-integrated device, including an overload protector body, a reset rod, and connecting contact pieces. The reset rod is movably inserted into the inner cavity of the overload protector body. The connecting contact pieces are located at the bottom of the overload protector body and are arranged symmetrically. An overload detection iron plate is provided on the surface of the overload protector body. A resistance heating wire is movably provided on the surface of the overload protector body. Mounting seats are connected to both ends of the resistance heating wire. Mounting grooves are opened on the surface of the overload protector body at both ends of the overload detection iron plate. The mounting seats are fixed in the mounting grooves by countersunk bolts.

[0008] The bottom of the reset rod is connected to an upper contact plate, and a lower contact plate is provided below the upper contact plate. After the upper contact plate and the lower contact plate come into contact, they are located on the back of the overload detection iron plate. The upper contact plate and the lower contact plate are electrically connected to two sets of connecting contact plates respectively.

[0009] Preferably, the mounting base is provided with a heat insulation seat, and the two ends of the resistance heating wire are respectively inserted into the heat insulation seat.

[0010] Preferably, a reset spring for providing upward force is sleeved at the bottom of the reset rod, and the diameter of the reset spring is larger than the diameters of the upper and lower contact plates.

[0011] Preferably, the overload protector body has a positioning hoop movably installed in its internal cavity, and one end of the positioning hoop has a push rod, the end of which abuts against the back surface of the overload detection iron plate.

[0012] Preferably, the positioning hoop has a guide seat on its side wall, and the positioning hoop is slidably connected to the inner wall of the overload protector body through the guide seat.

[0013] Preferably, the other end of the positioning hoop is provided with a positioning protrusion, and the surface of the reset rod is provided with a positioning groove, wherein the positioning protrusion is engaged with the positioning groove.

[0014] Preferably, the positioning hoop surface is provided with a support spring, and the end of the support spring abuts against the inner wall surface of the overload protector body.

[0015] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] 1. In this utility model, the two ends of the resistance heating wire are connected to the mounting slot through the mounting base and fixed by countersunk bolts, which can realize the quick installation of the resistance heating wire. After the resistance heating wire is energized, it generates heat. The heat is transferred to the overload detection iron plate, which will deform the plate, thereby actively detecting the overload of the overload protector to check whether the overload protector is functioning properly.

[0017] 2. This utility model utilizes a supporting spring to push the positioning hoop bracket, and a guide seat to guide the movement of the positioning hoop. The positioning protrusion engages with the positioning groove to position the reset rod. At this time, the end of the push rod abuts against the back surface of the overload detection iron plate. When overloaded, the temperature of the upper and lower contact plates rises, causing the overload detection iron plate to deform. The overload detection iron plate pushes the positioning hoop to move through the push rod, separating the positioning protrusion from the positioning groove. With the support of the reset spring, the reset rod rises, and the upper and lower contact plates separate, achieving overload protection. The structure is simple, safe and reliable to use, and can improve the protection of micro-integrated devices. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the overload protection structure of a micro-integrated device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the guide groove structure of the overload protection structure of a micro-integrated device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the workpiece lifting structure of the anti-overload structure of a micro-integrated device according to this utility model;

[0021] Figure 4 This is a schematic diagram of the hook structure of the overload protection structure of a micro-integrated device according to this utility model;

[0022] Figure 5 This is a schematic diagram of the hook structure of the overload protection structure of a micro-integrated device according to this utility model.

[0023] Figure label:

[0024] 1. Overload protector body; 2. Reset rod; 3. Connecting contact piece; 4. Overload detection iron piece; 5. Mounting slot; 6. Mounting base; 7. Resistance heating wire; 8. Heat insulation base; 9. Reset spring; 10. Upper contact plate; 11. Lower contact plate; 12. Positioning clamp; 13. Positioning groove; 14. Top rod; 15. Guide seat; 16. Positioning protrusion; 17. Support spring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] like Figure 1-4 As shown, the present invention proposes an overload protection structure for a micro-integrated device, comprising an overload protector body 1, a reset rod 2, and a connecting contact piece 3. The reset rod 2 is movably inserted into the inner cavity of the overload protector body 1. The connecting contact piece 3 is located at the bottom of the overload protector body 1 and is arranged symmetrically. An overload detection iron piece 4 is provided on the surface of the overload protector body 1. A resistance heating wire 7 is movably provided on the surface of the overload protector body 1. Mounting seats 6 are connected to both ends of the resistance heating wire 7. Mounting grooves 5 are opened on the surface of the overload protector body 1 at both ends of the overload detection iron piece 4. The mounting seats 6 are fixed in the mounting grooves 5 by countersunk bolts.

[0027] The bottom of the reset rod 2 is connected to an upper contact plate 10, and a lower contact plate 11 is provided below the upper contact plate 10. After the upper contact plate 10 and the lower contact plate 11 come into contact, they are located on the back of the overload detection iron plate 4. The upper contact plate 10 and the lower contact plate 11 are electrically connected to two sets of connecting contact pieces 3 respectively.

[0028] It should be noted that the two ends of the resistance heating wire 7 are connected to the mounting slot 5 through the mounting base 6 and fixed by countersunk bolts, which can realize the quick installation of the resistance heating wire 7. After being powered on, the resistance heating wire 7 generates heat, which is transferred to the overload detection iron plate 4 and causes it to deform, thereby actively detecting overload of the overload protector to test its reliability.

[0029] In this embodiment, as Figure 3 As shown, the surface of the mounting base 6 is provided with a heat insulation base 8, and the two ends of the resistance heating wire 7 are respectively inserted into the heat insulation base 8.

[0030] It should be noted that the heat insulation seat 8 can serve as a heat insulation function, and the two ends of the resistance heating wire 7 are too close to the overload protector body 1, which can prevent heat from being transferred to the overload protector body 1.

[0031] In this embodiment, as Figure 3 As shown, a reset spring 9 for providing upward force is sleeved at the bottom of the reset rod 2. The diameter of the reset spring 9 is larger than the diameter of the upper contact plate 10 and the lower contact plate 11.

[0032] It should be noted that the reset rod 2 can be raised under the support of the reset spring 9.

[0033] In this embodiment, as Figure 3 As shown, a positioning hoop 12 is movably provided in the inner cavity of the overload protector body 1. One end of the positioning hoop 12 is provided with a push rod 14, the end of which abuts against the back surface of the overload detection iron plate 4. A guide seat 15 is provided on the side wall of the positioning hoop 12, and the positioning hoop 12 is slidably connected to the inner wall of the overload protector body 1 through the guide seat 15. A positioning protrusion 16 is provided at the other end of the positioning hoop 12. A positioning groove 13 is opened on the surface of the reset rod 2, and the positioning protrusion 16 is engaged with the positioning groove 13. A support spring 17 is provided on the surface of the positioning hoop 12, and the end of the support spring 17 abuts against the inner wall surface of the overload protector body 1.

[0034] It should be noted that, through the support spring 17 pushing the positioning hoop 12 bracket, the guide seat 15 can guide the movement of the positioning hoop 12. The positioning protrusion 16 is engaged in the positioning groove 13 to position the reset rod 2. At this time, the end of the push rod 14 abuts against the back surface of the overload detection iron plate 4. When overloaded, the temperature of the upper contact plate 10 and the lower contact plate 11 rises. The high temperature causes the overload detection iron plate 4 to deform. The overload detection iron plate 4 pushes the positioning hoop 12 to move through the push rod 14. The positioning protrusion 16 separates from the positioning groove 13. Under the support of the reset spring 9, the reset rod 2 is lifted, and the upper contact plate 10 separates from the lower contact plate 11.

[0035] The working principle and usage process of this utility model are as follows: When the reset rod 2 is pressed, the bottom of the reset rod 2 compresses the reset spring 9, and the upper contact plate 10 and the lower contact plate 11 abut together, so that the two sets of connecting contact pieces 3 are in a connected state. Through the support spring 17, the positioning hoop 12 bracket is pushed, and the guide seat 15 can guide the movement of the positioning hoop 12. The positioning protrusion 16 is engaged in the positioning groove 13 to position the reset rod 2. At this time, the end of the top rod 14 abuts against the back surface of the overload detection iron piece 4. When overloaded, the temperature of the upper contact plate 10 and the lower contact plate 11 rises, and the high temperature causes the overload detection iron piece 4 to deform. The overload detection iron piece 4 passes through the top rod 14. Rod 14 pushes the positioning clamp 12 to move, the positioning protrusion 16 separates from the positioning groove 13, and the reset rod 2 is lifted under the support of the reset spring 9, the upper contact plate 10 separates from the lower contact plate 11, realizing overload protection. The structure is simple, safe and reliable to use, and can improve the protection of micro-integrated devices. The two ends of the resistance heating wire 7 are inserted into the mounting groove 5 through the mounting base 6 and fixed by countersunk bolts, which can realize the quick installation of the resistance heating wire 7. The resistance heating wire 7 generates heat after being energized. The heat is transferred to the overload detection iron plate 4, which will deform it, thereby actively detecting the overload protector to check whether the overload protector is functioning normally.

[0036] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. An overload protection structure for a micro-integrated device, comprising an overload protector body (1), a reset rod (2), and connecting contact pieces (3), wherein the reset rod (2) is movably inserted into the inner cavity of the overload protector body (1), and the connecting contact pieces (3) are disposed at the bottom of the overload protector body (1) and are symmetrically arranged, characterized in that, The overload protector body (1) has an overload detection iron plate (4) on its surface, and a resistance heating wire (7) is movably provided on the surface of the overload protector body (1). The two ends of the resistance heating wire (7) are connected to mounting bases (6). The surface of the overload protector body (1) has mounting grooves (5) at both ends of the overload detection iron plate (4). The mounting bases (6) are fixed in the mounting grooves (5) by countersunk bolts. The bottom of the reset rod (2) is connected to an upper contact plate (10), and a lower contact plate (11) is provided below the upper contact plate (10). After the upper contact plate (10) and the lower contact plate (11) come into contact, they are located on the back of the overload detection iron plate (4). The upper contact plate (10) and the lower contact plate (11) are electrically connected to two sets of connecting contact pieces (3) respectively.

2. The overload protection structure for a micro-integrated device according to claim 1, characterized in that, The mounting base (6) is provided with a heat insulation seat (8) on its surface, and the two ends of the resistance heating wire (7) are respectively inserted into the heat insulation seat (8).

3. The overload protection structure for a micro-integrated device according to claim 2, characterized in that, The bottom of the reset rod (2) is fitted with a reset spring (9) for providing upward power. The diameter of the reset spring (9) is larger than the diameter of the upper contact plate (10) and the lower contact plate (11).

4. The overload protection structure for a micro-integrated device according to claim 3, characterized in that, The overload protector body (1) has a positioning hoop (12) movably installed in its inner cavity. One end of the positioning hoop (12) is provided with a top rod (14), and the end of the top rod (14) abuts against the back surface of the overload detection iron plate (4).

5. The overload protection structure for a micro-integrated device according to claim 4, characterized in that, The positioning hoop (12) is provided with a guide seat (15) on its side wall, and the positioning hoop (12) is slidably connected to the inner wall of the overload protector body (1) through the guide seat (15).

6. The overload protection structure for a micro-integrated device according to claim 5, characterized in that, The other end of the positioning hoop (12) is provided with a positioning protrusion (16), and the surface of the reset rod (2) is provided with a positioning groove (13), and the positioning protrusion (16) is engaged with the positioning groove (13).

7. The overload protection structure for a micro-integrated device according to claim 6, characterized in that, The positioning hoop (12) is provided with a support spring (17), and the end of the support spring (17) abuts against the inner wall surface of the overload protector body (1).

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