Self-driven rapid current limiting device

Abstract

The utility model discloses a self-driving type quick current limiting device, which relates to the technical field of self-driving current limiting devices and comprises a rack, a positioning frame arranged below the rack and a binding post head arranged at the bottom end of the positioning frame, an anti-overflow ring is arranged between the rack and the positioning frame, and the rack, the anti-overflow ring and the positioning frame are connected through bolts. A first sealing gasket and a second sealing gasket which are symmetrically distributed are arranged on the inner side wall of the anti-overflow ring from top to bottom and extend to the inner side of the rack and the inner side of the positioning frame correspondingly, and a plurality of pressure blocks distributed at equal intervals are arranged on the inner side of the first sealing gasket and the inner side of the second sealing gasket along the circumferential track of the first sealing gasket and the inner side of the second sealing gasket correspondingly. According to the utility model, the anti-overflow ring is arranged in the gap between the rack and the positioning frame. Under the pressing acting force of the pressing plate and the supporting plate, the first sealing gasket and the second sealing gasket which are arranged on the spill-proof ring are tightly connected with the rack and the positioning frame, water can be effectively prevented from flowing out, and the sealing performance of the spill-proof ring installed in the gap between the rack and the positioning frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-driven current limiting devices, in particular to a self-driven fast current limiting device. Background Art

[0002] Self-driven current limiting refers to a device that automatically limits current within a specified range in a power system. This device consists of an eddy-current-driven converter and a reactor. It has no internal controller, no power supply, and is immune to external interference. Short-circuit current drives the eddy-current-driven converter. Once the short-circuit current disappears, the eddy-current-driven converter automatically closes, resulting in a zero false-positive rate. The water splash test for self-driven current limiting devices is an experimental method used to test and verify their performance. These devices are commonly used to prevent circuit overloads and protect electronic equipment from damage. The purpose of the test is to observe the response of the self-driven current limiting device to a high current surge and its current-limiting effectiveness. Based on the experimental results, the self-driven current limiting device can be optimized and improved to enhance its performance and reliability. This water splash test effectively tests and verifies the performance of self-driven current limiting devices, providing strong technical support for practical applications.

[0003] In the existing self-propelled rapid current limiting device, during the water splashing test, water easily overflows from the gap between the frame connection parts, resulting in a decrease in the water inside the frame, which further leads to a decrease in the water used for the water splashing test, which easily affects the test process. Furthermore, the overflowed water is also easy to Utility Model Content

[0004] In response to the above problems, the present application provides a self-driven fast current limiting device.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a self-driven rapid current limiting device, comprising a frame, a positioning frame arranged below the frame, and a terminal head arranged at the bottom end of the positioning frame, an anti-overflow ring is provided between the frame and the positioning frame, and the frame, anti-overflow ring and positioning frame are connected by bolts.

[0006] The inner wall of the anti-overflow ring is provided with a symmetrically distributed sealing gasket 1 and a sealing gasket 2 from top to bottom, and the sealing gasket 1 and the sealing gasket 2 extend to the inner sides of the frame and the positioning frame respectively, and the inner sides of the sealing gasket 1 and the sealing gasket 2 are provided with a plurality of equidistantly distributed pressure blocks along their circumferential trajectories, and the two groups of pressure blocks distributed from top to bottom are respectively against the inner surfaces of the sealing gasket 1 and the sealing gasket 2.

[0007] Furthermore, a support plate is provided on the side of the pressure block away from sealing gasket 1 and sealing gasket 2, and multiple support plates located in the same horizontal plane are connected by annular ribs. In a natural state, the annular ribs are coaxially distributed with the anti-overflow ring.

[0008] Furthermore, a pair of positioning columns are provided in the relative space of the two corresponding support plates from top to bottom, and a pair of gaskets coaxially distributed with the positioning columns are provided on the side of the upper and lower support plates facing the positioning columns, and the gaskets and positioning columns are connected by pressure springs.

[0009] Furthermore, a pair of positioning column heads located between the two support plates are connected by a connecting frame, and the connecting frames are arranged on the inner side wall of the anti-overflow ring.

[0010] Furthermore, the frame and positioning frame are respectively provided with a plurality of positioning blocks 1 and 2 arranged equidistantly along the circumferential track, and the upper and lower surfaces of the anti-overflow ring are provided with accommodating grooves for accommodating positioning blocks 1 and 2.

[0011] Furthermore, the positioning column heads are provided with guide rods coaxially distributed with the pressure springs, the guide rods pass through the gaskets and the support plates, and the ends of the pressure springs exposed to the support plates are provided with anti-slip rings.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] This utility model installs an anti-overflow ring within the gap between the frame and the positioning frame. Under the compressive force of the pressure plate and support plate, the first and second sealing gaskets mounted on the anti-overflow ring are tightly connected to the frame and positioning frame, effectively preventing the outflow of liquid and improving the sealing performance of the anti-overflow ring within the gap between the frame and the positioning frame. The movement of the support plate is restricted, and even if the support plate shifts slightly, it can be promptly reset. This improves the stability of the connection between the pressure plate and the first and second sealing gaskets, further ensuring the stability of the first and second sealing gaskets connected to the frame and positioning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the first perspective of the frame and positioning frame of the utility model after being cut open.

[0017] Figure 3 This is a schematic diagram of the second viewing angle of the frame and positioning frame of the utility model after being cut open.

[0018] Figure 4This is a schematic diagram of the structure of the utility model's anti-epidemic ring, sealing gasket 1 and sealing gasket 2 after being cut apart.

[0019] Figure 5 For this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. Frame; 11. Positioning block 1; 2. Positioning frame; 21. Positioning block 2; 3. Anti-overflow ring; 31. Receiving groove; 32. Sealing gasket 1; 33. Sealing gasket 2; 4. Terminal block; 5. Pressure block; 6. Support plate; 61. Gasket; 7. Annular rib; 8. Pressure spring; 9. Positioning column; 91. Guide rod; 92. Anti-slip ring; 10. Connecting frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1-4 The self-propelled rapid current limiting device shown in the figure includes a frame 1, a positioning frame 2 disposed below the frame 1, and a terminal block 4 disposed at the bottom end of the positioning frame 2. An anti-overflow ring 3 is disposed between the frame 1 and the positioning frame 2, and the frame 1, anti-overflow ring 3, and the positioning frame 2 are connected by bolts. In this state, the anti-overflow ring 3 is compressed in the gap between the frame 1 and the positioning frame 3.

[0023] The inner wall of the anti-overflow ring 3 is provided with symmetrically distributed sealing gaskets 1 32 and 2 33 from top to bottom. In order to prevent water from overflowing from the gap between the frame 1, the positioning frame 2 and the anti-overflow ring 3, the sealing gasket 1 32 and the sealing gasket 2 33 extend to the inner sides of the frame 1 and the positioning frame 2 respectively, which can effectively block the outflow of water and improve the sealing performance of the anti-overflow ring 3 installed in the gap between the frame 1 and the positioning frame 3.

[0024] To maintain the tightness of the connection between gasket 1 32 and gasket 2 and the frame 1 and positioning frame 2, multiple pressure blocks 5 are evenly spaced along the inner circumference of each gasket. Two groups of pressure blocks 5, distributed from top to bottom, respectively, abut against the inner surfaces of gasket 1 32 and gasket 2 33, maintaining the stability of gasket 1 32 and gasket 2 33. This effectively prevents water overflow caused by gaps between gasket 1 32 and gasket 2 and the frame 1 and positioning frame 2 during long-term use.

[0025] Example 2: Reference Figure 1-4 A support plate 6 is provided on each side of the pressure block 5 away from the first and second sealing gaskets 32 and 33. Multiple support plates 6 located on the same horizontal plane are connected by annular ribs 7. In their natural state, the annular ribs 7 are coaxially distributed with the anti-overflow ring 3. The annular ribs 7 enhance the stability and structural strength of the multiple support plates 6, further improving the impact resistance of the support plates 6, the first and second sealing gaskets 32 and 33, thereby preventing them from shifting under the impact of water.

[0026] A pair of positioning studs 9 are located in the space between the two corresponding support plates 6, from top to bottom. A pair of gaskets 61, coaxially arranged with the positioning studs 9, are located on each side of the upper and lower support plates 6 facing the positioning studs 9. The gaskets 61 and the positioning studs 9 are connected by a pressure spring 8. The elastic potential energy of the pressure spring 8 ensures that even if the support plates 6 shift slightly, they can be quickly reset, ensuring the tightness of the connection between the pressure plate 5 and the first and second sealing gaskets 32 and 33. This further improves the tightness of the connection between the first and second sealing gaskets 32 and 33 and the frame 1 and positioning frame 2.

[0027] In order to prevent the support plate 6 and the pressure plate from falling into the positioning frame 2 , a pair of positioning column heads 9 located between the two support plates 6 are connected by a connecting frame 10 , and the connecting frames 10 are all arranged on the inner side wall of the anti-overflow ring 3 .

[0028] To enhance the tightness of the connection between the frame 1, positioning frame 2, and anti-overflow ring 3, a plurality of first positioning blocks 11 and second positioning blocks 21 are provided on the frame 1 and positioning frame 2, respectively, and are arranged equidistantly along a circumferential trajectory. Receiving grooves 31 are formed on the upper and lower surfaces of the anti-overflow ring 3 to accommodate the first positioning blocks 11 and second positioning blocks 21. When the frame 1, positioning frame 2, and anti-overflow ring 3 are connected, the first positioning blocks 11 and second positioning blocks 21 are embedded in their corresponding receiving grooves 31.

[0029] To prevent support plate 6, gasket 1 32, and gasket 2 33 from shifting in other directions, a guide rod 91 coaxially distributed with pressure spring 8 is provided on positioning stud 9. Guide rod 91 passes through gasket 61 and support plate 6, and an anti-slip ring 92 is provided on the end of pressure spring 8 exposed to support plate 6. The provision of guide rod 91 limits the movement direction of support plate 6, thereby preventing pressure plate 5 from lateral separation from gasket 1 32 and gasket 2 33.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-driven rapid current limiting device, comprising a frame (1), a positioning frame (2) arranged below the frame (1), and a terminal head (4) arranged at the bottom end of the positioning frame (2), characterized in that: An anti-overflow ring (3) is provided between the frame (1) and the positioning frame (2), and the frame (1), the anti-overflow ring (3) and the positioning frame (2) are connected by bolts; The inner side wall of the anti-overflow ring (3) is provided with a symmetrically distributed sealing gasket 1 (32) and a symmetrically distributed sealing gasket 2 (33) from top to bottom. The sealing gasket 1 (32) and the sealing gasket 2 (33) extend to the inner side of the frame (1) and the positioning frame (2), respectively. The inner sides of the sealing gasket 1 (32) and the sealing gasket 2 (33) are provided with a plurality of equally distributed pressure blocks (5) along their circumferential tracks. The two groups of pressure blocks (5) distributed from top to bottom respectively abut against the inner surfaces of the sealing gasket 1 (32) and the sealing gasket 2 (33).

2. The self-driven rapid current limiting device according to claim 1, characterized in that: A support plate (6) is provided on one side of the pressure block (5) away from the sealing gasket 1 (32) and the sealing gasket 2 (33). A plurality of the support plates (6) located on the same horizontal plane are connected by an annular rib (7). In a natural state, the annular rib (7) is coaxially distributed with the anti-overflow ring (3).

3. The self-driven rapid current limiting device according to claim 2, characterized in that: A pair of positioning column heads (9) are provided in the relative spaces between the two corresponding support plates (6) from top to bottom, and a pair of gaskets (61) coaxially distributed with the positioning column heads (9) are provided on the sides of the upper and lower support plates (6) facing the positioning column heads (9), and the gaskets (61) and the positioning column heads (9) are connected via a pressure spring (8).

4. The self-driven rapid current limiting device according to claim 3, characterized in that: A pair of positioning column heads (9) located between the two support plates (6) are connected via a connecting frame (10), and the connecting frame (10) is arranged on the inner side wall of the anti-overflow ring (3).

5. The self-driven rapid current limiting device according to claim 1, characterized in that: The frame (1) and the positioning frame (2) are respectively provided with a plurality of positioning blocks (11) and positioning blocks (21) arranged at equal intervals along a circumferential track, and the upper and lower surfaces of the anti-overflow ring (3) are both provided with receiving grooves (31) for accommodating the positioning blocks (11) and the positioning blocks (21).

6. The self-driven rapid current limiting device according to claim 3, characterized in that: The positioning column head (9) is provided with a guide rod (91) coaxially distributed with the pressure spring (8), the guide rod (91) is passed through the gasket (61) and the support plate (6), and the end of the pressure spring (8) exposed to the support plate (6) is provided with an anti-slip ring (92).

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