An integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment

Abstract

The present invention discloses an integrated interlocking circuit breaker protection mechanism for a primary and secondary fused electric power device, which solves the problem that the existing circuit breaker protection mechanism is fixed with screws when connected to the wire, and cannot independently separate the wire from the circuit breaker protection mechanism, and is very likely to fail, be damaged, or even burn inside the circuit breaker protection mechanism due to the leakage current when the connection end of the wire is short-circuited. An integrated interlocking circuit breaker protection mechanism for a primary and secondary fused electric power device includes a circuit breaker body, both ends of the circuit breaker body are provided with wire connection holes, and a wire is inserted in the middle of the wire connection hole. When a fault occurs inside the circuit breaker protection mechanism or a short-circuit current leaks at the ends of the wire and the circuit breaker protection mechanism, the present invention can separate the wire from the circuit breaker protection mechanism in the first place, thereby avoiding damage or burning of the circuit breaker protection mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breaker protection mechanisms, and in particular to an integrated linkage circuit breaker protection mechanism for primary and secondary fusion power equipment. Background Art

[0002] Primary and secondary integration technology means that the primary equipment in the power system will contain some secondary equipment intelligent units, making the primary equipment more intelligent. The primary equipment has built-in measurement, metering, relay protection, monitoring, control and other functions.

[0003] The circuit breaker mechanism, also known as the leakage protection device, is mainly used to protect the equipment from leakage faults and personal electric shock, which is dangerous and life-threatening. It has overload and short-circuit protection functions, and can be used to protect the line or motor from overload and short circuit. It can also be used for infrequent switching and starting of the line under normal circumstances. It is used on power equipment with primary and secondary fusion technology to protect the equipment circuit.

[0004] However, the existing circuit breaker protection mechanism is fixed with screws when connected to the wire, and the wire cannot be separated from the circuit breaker protection mechanism independently. When the connection end of the wire is short-circuited, it is very easy for the leakage current to cause malfunction, damage or even combustion inside the circuit breaker protection mechanism. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment to solve the problems raised in the above background technology, such as the existing circuit breaker protection mechanism is fixed with screws when connected to the wire, and the wire cannot be separated from the circuit breaker protection mechanism independently. When the connection end of the wire is short-circuited, it is very easy for the leakage current to cause failure, damage or even combustion inside the circuit breaker protection mechanism.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated linkage circuit breaker protection mechanism for a primary-secondary integrated power device, comprising a circuit breaker body, wherein both ends of the circuit breaker body are provided with a wire connection hole, a wire is inserted in the middle of the wire connection hole, two symmetrically distributed mounting slots are provided inside the wire connection hole, and a conductive mechanism is provided between the two mounting slots;

[0007] The conductive mechanism includes a conductive conductor, which is embedded in the inner end surface of the wire connection hole and can slide. A contact conductor is provided at one end of the conductive conductor, and a connecting wire is provided between the other end of the conductive conductor and the circuit breaker body. An insulating ring is provided outside the end of the conductive conductor provided with the contact conductor, and a return spring is provided between the insulating ring and the inner end surface of the wire connection hole. Conductor insulation clamping blocks are provided on both sides of the contact conductor. One side of the conductive conductor insulation clamping block is clamped to the inner side of the mounting card slot and is slidably connected to the mounting card slot. A spring piece is provided between the side wall of the conductive conductor insulation clamping block clamped to the inner side of the mounting card slot and the inner wall of the mounting card slot;

[0008] Both ends of the circuit breaker body are provided with a wire clamping and separating mechanism, and the wire clamping and separating mechanism includes two circuit breaker fixed connecting plates, the two circuit breaker fixed connecting plates are respectively located on both sides of the wire connection hole, an electromagnet is provided inside the circuit breaker fixed connecting plate, and a pop-up connecting plate is slidably provided through the end of the circuit breaker fixed connecting plate away from the circuit breaker body, and a permanent magnet is embedded in the end of the pop-up connecting plate located inside the circuit breaker fixed connecting plate, a guide groove is provided on the inner wall of the circuit breaker fixed connecting plate, a pop-up spring is provided on the inner side of the guide groove, and a pop-up slider is provided at one end of the pop-up spring, and the pop-up slider is fixed to the outer wall of the pop-up connecting plate;

[0009] Two arc-shaped connecting blocks are provided at the end of the pop-up connecting plate located outside the fixed connecting plate of the circuit breaker, and three connecting rods are provided between the two arc-shaped connecting blocks. The two arc-shaped connecting blocks and the three connecting rods are integrally injection molded. A nut is embedded and clamped on the inner wall of the arc-shaped connecting block, and a clamping screw is provided through the middle of the nut. The clamping screw passes through the arc-shaped connecting block and is provided with a wire fixing clamp at the end of the clamping screw located inside the wire connection hole.

[0010] Preferably, a support rod is provided in the middle of the guide slot, and a U-shaped slot is provided at the end of the pop-up slider that is slidably engaged with the inner side of the guide slot.

[0011] Preferably, the pop-up slider is clamped on the outer side of the support rod through a U-shaped clamping groove and the material of the pop-up slider is rubber, and one end of the support rod passes through the middle of the pop-up spring.

[0012] Preferably, the electromagnet is magnetically connected to the permanent magnet, and the magnetic adsorption force of the electromagnet on the permanent magnet is greater than the elastic force of the pop-up spring.

[0013] Preferably, a plug-in hole is provided in the middle of the end portion of the wire fixing clamp block connected to the clamping screw, and the end portion of the clamping screw is plugged into the inner side of the plug-in hole.

[0014] Preferably, an annular connecting groove is provided on the inner wall of the plug-in hole, and an inserting groove is provided on the outer surface of the end portion of the clamping screw located inside the plug-in hole.

[0015] Preferably, an anti-dropout plug-in block is inserted into the inner side of the plug-in slot, and one end of the anti-dropout plug-in block is clamped into the inner side of the annular connecting slot and is slidably connected to the annular connecting slot.

[0016] Preferably, an anti-slip sheet is provided on one side of the nut, and the anti-slip sheet is embedded in the outer surface of the arc-shaped connecting block and connected to the arc-shaped connecting block by screws.

[0017] Preferably, both ends of the spring sheet are provided with positioning holes, a fixing pin is inserted in the middle of the positioning hole, and the fixing pin is fixedly connected to the conductive conductor insulation clamping block and the inner wall of the mounting slot in contact with it.

[0018] Preferably, an insulating sealing sleeve is provided on the inner side of the wire connection hole, the length of the insulating sealing sleeve is half of the depth of the wire connection hole, the wire connected to the circuit breaker body passes through the middle of the insulating sealing sleeve, and the inner diameter of the insulating sealing sleeve is smaller than the outer diameter of the wire.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, when the power supply connected to the electromagnet stops supplying power to the electromagnet, the electromagnet cannot continue to magnetically attract the permanent magnet. At this time, the pop-up spring loses its restriction and elastically recovers. The elastically recovered pop-up spring pushes the pop-up slider to slide inside the guide slot and causes the pop-up slider to drive the pop-up connecting plate to extend from the circuit breaker fixed connecting plate. The extended pop-up connecting plate drives the two arc-shaped connecting blocks at its ends connected by the connecting rod to move synchronously, so that the two arc-shaped connecting blocks corresponding to the two sides of the wire drive the two wire fixing clamps in the middle that fix the wire to move, so that the wire is pulled and pulled out of the wire connecting hole. When a fault occurs inside the circuit breaker protection mechanism or a short-circuit current leaks at the ends of the wire and the circuit breaker protection mechanism, the wire and the circuit breaker protection mechanism can be separated from each other immediately to avoid damage or burning of the circuit breaker protection mechanism.

[0021] 2. The present invention provides two conductive conductor insulation clamping blocks, a conductive conductor, a contact conductor, an insulating ring, and a reset spring inside the wire connection hole. After the wire is inserted into the wire connection hole and the two conductive conductor insulation clamping blocks are pressed and moved into the installation slot, the contact conductor at the end of the conductive conductor will contact the metal conductor inside the wire under the drive of the reset spring and the insulating ring. When the wire is not inserted into the wire connection hole, the contact conductor at the end of the conductive conductor will be shielded by the two conductive conductor insulation clamping blocks. This can directly cut off the current when the wire is pulled, and protect the contact conductor from contact with external dust.

[0022] 3. The present invention passes the wire through the middle of two wire fixing clamps located between two mutually flush arc-shaped connecting blocks, and then rotates the clamping screw to move the clamping screw along its axis. At this time, the clamping screw will pull the wire fixing clamps to move synchronously through the anti-drop plug-in block, so that the two wire fixing clamps are separated from each other and the wire passing through the middle of the two wire fixing clamps is clamped and fixed, ensuring that the wire can move synchronously when the arc-shaped connecting block moves, completing the separation of the wire from the circuit breaker body, and no sliding occurs between the wire and the wire fixing clamps during the separation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0024] Figure 2 It is an enlarged view of the partial structure of the wire clamping and separating mechanism of the present invention;

[0025] Figure 3 It is a partial structural cross-sectional view of the circuit breaker body of the present invention;

[0026] Figure 4 is a cross-sectional view of the wire fixing clamp of the present invention;

[0027] Figure 5 For the present invention Figure 3 A magnified view of the structure at point A;

[0028] Figure 6 For the present invention Figure 3 A magnified view of the structure at point B.

[0029] In the figure: 1. Circuit breaker body; 2. Wire clamping and separation mechanism; 201. Circuit breaker fixed connecting plate; 202. Pop-up connecting plate; 203. Arc-shaped connecting block; 204. Clamping screw; 205. Wire fixing clamping block; 206. Connecting rod; 207. Permanent magnet; 208. Electromagnet; 209. Guide slide; 210. Pop-up slider; 211. Pop-up spring; 212. Support rod; 213. Nut; 214. Connecting hole; 215. Annular connecting groove; 216. Anti-dropping plug-in block; 217. Anti-dropping sheet; 3. Wire connecting hole; 4. Insulating sealing sleeve; 5. Conducting mechanism; 501. Conducting conductor; 502. Contact conductor; 503. Conducting conductor insulation clamping block; 504. Spring sheet; 505. Insulating ring; 506. Reset spring; 507. Connecting wire; 6. Mounting slot. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figures 1 to 6 The present invention provides an embodiment of an integrated linkage circuit breaker protection mechanism for a primary-secondary integrated power device, comprising a circuit breaker body 1, wherein both ends of the circuit breaker body 1 are provided with a wire connection hole 3, a wire is inserted in the middle of the wire connection hole 3, and two symmetrically distributed mounting slots 6 are provided inside the wire connection hole 3, and a conductive mechanism 5 is provided in the middle of the two mounting slots 6;

[0032] The conductive mechanism 5 includes a conductive conductor 501, which is embedded in the inner end surface of the wire connection hole 3 and can slide. A contact conductor 502 is provided at one end of the conductive conductor 501, and a connecting wire 507 is provided between the other end of the conductive conductor 501 and the circuit breaker body 1. An insulating ring 505 is provided outside the end of the conductive conductor 501 provided with the contact conductor 502. A return spring 506 is provided between the insulating ring 505 and the inner end surface of the wire connection hole 3. Conductor insulation clamping blocks 503 are provided on both sides of the contact conductor 502. One side of the conductive conductor insulation clamping block 503 is clamped to the inner side of the mounting slot 6 and is slidably connected to the mounting slot 6. A spring leaf 504 is provided between the side wall of the conductive conductor insulation clamping block 503 clamped to the inner side of the mounting slot 6 and the inner wall of the mounting slot 6.

[0033] Both ends of the circuit breaker body 1 are provided with a wire clamping and separating mechanism 2. The wire clamping and separating mechanism 2 includes two circuit breaker fixed connecting plates 201, which are respectively located on both sides of the wire connection hole 3. An electromagnet 208 is provided inside the circuit breaker fixed connecting plate 201. A pop-up connecting plate 202 is slidably provided through the end of the circuit breaker fixed connecting plate 201 away from the circuit breaker body 1. The end of the pop-up connecting plate 202 located inside the circuit breaker fixed connecting plate 201 is embedded with a permanent magnet 207. A guide groove 209 is provided on the inner wall of the circuit breaker fixed connecting plate 201. A pop-up spring 211 is provided on the inner side of the guide groove 209. A pop-up slider 210 is provided at one end of the pop-up spring 211. The pop-up slider 210 is fixed to the outer wall of the pop-up connecting plate 202.

[0034] Two arcuate connecting blocks 203 are provided at the end of the pop-up connecting plate 202 located outside the circuit breaker fixed connecting plate 201. Three connecting rods 206 are provided between the two arcuate connecting blocks 203. The two arcuate connecting blocks 203 and the three connecting rods 206 are integrally injection molded. A nut 213 is embedded and clamped on the inner wall of the arcuate connecting block 203. A clamping screw 204 is provided through the middle of the nut 213. The clamping screw 204 passes through the arcuate connecting block 203 and is provided with a wire fixing clamp 205 at the end of the clamping screw 204 located inside the wire connection hole 3.

[0035] Furthermore, a support rod 212 is provided in the middle of the guide slot 209 , and a U-shaped slot is provided at the end of the pop-up slider 210 that is slidably engaged with the inner side of the guide slot 209 .

[0036] Furthermore, the pop-up slider 210 is connected to the outside of the support rod 212 through a U-shaped slot and the material of the pop-up slider 210 is rubber. One end of the support rod 212 passes through the middle of the pop-up spring 211. The support rod 212 supports the pop-up spring 211 to prevent the pop-up spring 211 from being displaced or tilted.

[0037] Furthermore, the electromagnet 208 is magnetically connected to the permanent magnet 207, and the magnetic attraction force of the electromagnet 208 on the permanent magnet 207 is greater than the elastic force of the pop-up spring 211, ensuring that the pop-up spring 211 will not cause the pop-up slider 210 and the pop-up connecting plate 202 to move in the normal process state of the circuit breaker body 1.

[0038] Furthermore, an inserting hole 214 is provided in the middle of the end portion where the wire fixing clamp 205 is connected to the clamping screw 204 , and the end portion of the clamping screw 204 is inserted into the inner side of the inserting hole 214 .

[0039] Furthermore, an annular connecting groove 215 is provided on the inner wall of the plug hole 214 , and an inserting groove is provided on the outer surface of the end portion of the clamping screw 204 located inside the plug hole 214 .

[0040] Furthermore, an anti-slip plug-in block 216 is inserted into the inner side of the plug-in slot, and one end of the anti-slip plug-in block 216 is clamped on the inner side of the annular connecting groove 215 and is slidably connected to the annular connecting groove 215. By inserting the anti-slip plug-in block 216 on the outer side of the end of the clamping screw 204, it can be ensured that the clamping screw 204 will not be separated from the wire fixing clamp 205, and will not affect the normal rotation of the clamping screw 204.

[0041] Furthermore, an anti-slip sheet 217 is provided on one side of the nut 213. The anti-slip sheet 217 is embedded in the outer surface of the arc-shaped connecting block 203 and is connected to the arc-shaped connecting block 203 by screws. The anti-slip sheet 217 can fix the position of the nut 213 to prevent the nut 213 from rotating and moving when the clamping screw 204 is rotated.

[0042] Furthermore, positioning holes are provided at both ends of the spring piece 504, and a fixing pin is inserted in the middle of the positioning hole. The fixing pin is fixedly connected to the conductive conductor insulation clamping block 503 and the inner wall of the mounting slot 6 that are in contact with it. The position of the end of the spring piece 504 can be fixed by the fixing pin to ensure that the spring piece 504 will not be offset or tilted when the conductive conductor insulation clamping block 503 is squeezed.

[0043] Furthermore, an insulating sealing sleeve 4 is provided on the inner side of the wire connection hole 3. The length of the insulating sealing sleeve 4 is half of the depth of the wire connection hole 3. The wire connected to the circuit breaker body 1 passes through the middle of the insulating sealing sleeve 4. The inner diameter of the insulating sealing sleeve 4 is smaller than the outer diameter of the wire. The insulating sealing sleeve 4 can fill the gap between the wire and the inner wall of the wire connection hole 3 to prevent external dust or water vapor from entering the wire connection hole 3.

[0044] Working principle: When in use, if a short circuit occurs at the end where the wire is connected to the circuit breaker body 1 and current leaks, or if a fault current leaks from the electronic components inside the circuit breaker body 1, the power supply connected to the electromagnet 208 will stop supplying power to the electromagnet 208, so that the electromagnet 208 cannot continue to magnetically attract the permanent magnet 207. At this time, the pop-up spring 211 will lose its restriction and elastically recover. After elastic recovery, the pop-up spring 211 will push the pop-up slider 210 to slide inside the guide slot 209 and make the pop-up slider 210 drive the pop-up connecting plate 202 to extend from the fixed connecting plate 201 of the circuit breaker. , and the extended pop-up connecting plate 202 will drive the two arc-shaped connecting blocks 203 at its ends connected by the connecting rod 206 to move synchronously, so that the two arc-shaped connecting blocks 203 corresponding to the two sides of the wire drive the two wire fixing clamps 205 in the middle that fix the wire to move, so that the wire is pulled and pulled out of the wire connecting hole 3. When a fault occurs inside the circuit breaker protection mechanism or a short-circuit current leaks between the ends of the wire and the circuit breaker protection mechanism, the wire and the circuit breaker protection mechanism can be separated from each other in the first time to avoid damage or burning of the circuit breaker protection mechanism.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment, comprising a circuit breaker body (1), characterized in that: Both ends of the circuit breaker body (1) are provided with a wire connection hole (3), a wire is inserted in the middle of the wire connection hole (3), two symmetrically distributed mounting slots (6) are provided inside the wire connection hole (3), and a conductive mechanism (5) is provided in the middle of the two mounting slots (6); The conductive mechanism (5) comprises a conductive conductor (501), the conductive conductor (501) being embedded in the inner end surface of the wire connection hole (3) and being capable of sliding, a contact conductor (502) being provided at one end of the conductive conductor (501), a connecting wire (507) being provided between the other end of the conductive conductor (501) and the circuit breaker body (1), an insulating ring (505) being provided on the outer side of the end of the conductive conductor (501) provided with the contact conductor (502), the ... A return spring (506) is provided between the ring (505) and the inner end surface of the wire connection hole (3); conductive conductor insulation clamping blocks (503) are provided on both sides of the contact conductor (502); one side of the conductive conductor insulation clamping block (503) is clamped on the inner side of the mounting slot (6) and is slidably connected to the mounting slot (6); a spring sheet (504) is provided between the side wall of the conductive conductor insulation clamping block (503) clamped on the inner side of the mounting slot (6) and the inner wall of the mounting slot (6); Both ends of the circuit breaker body (1) are provided with a wire clamping and separating mechanism (2), the wire clamping and separating mechanism (2) comprising two circuit breaker fixed connecting plates (201), the two circuit breaker fixed connecting plates (201) being respectively located on both sides of the wire connecting hole (3), an electromagnet (208) being provided inside the circuit breaker fixed connecting plate (201), and a pop-up connecting plate (208) being provided through the end of the circuit breaker fixed connecting plate (201) away from the circuit breaker body (1) and slidingly provided therethrough. 202), the end of the pop-up connecting plate (202) located inside the circuit breaker fixed connecting plate (201) is inlaid with a permanent magnet (207), the inner wall of the circuit breaker fixed connecting plate (201) is provided with a guide slot (209), the inner side of the guide slot (209) is provided with a pop-up spring (211), one end of the pop-up spring (211) is provided with a pop-up slider (210), and the pop-up slider (210) is fixed on the outer wall of the pop-up connecting plate (202); The pop-up connecting plate (202) is provided with two arc-shaped connecting blocks (203) at the end portion located outside the circuit breaker fixed connecting plate (201), three connecting rods (206) are provided in the middle of the two arc-shaped connecting blocks (203), the two arc-shaped connecting blocks (203) and the three connecting rods (206) are integrally injection molded, a nut (213) is embedded and clamped on the inner wall of the arc-shaped connecting block (203), a clamping screw (204) is provided through the middle of the nut (213), and a wire fixing clamping block (205) is provided at the end portion of the clamping screw (204) that passes through the arc-shaped connecting block (203) and is located inside the wire connection hole (3).

2. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: A support rod (212) is provided in the middle of the guide slide groove (209), and a U-shaped slot is provided at the end of the pop-up slider (210) which is slidably engaged with the inner side of the guide slide groove (209).

3. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 2, characterized in that: The pop-up slider (210) is clamped on the outside of the support rod (212) through a U-shaped clamping groove. The material of the pop-up slider (210) is rubber. One end of the support rod (212) passes through the middle of the pop-up spring (211).

4. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: The electromagnet (208) is magnetically connected to the permanent magnet (207), and the magnetic adsorption force of the electromagnet (208) on the permanent magnet (207) is greater than the elastic force of the pop-up spring (211).

5. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: A plug hole (214) is provided in the middle of the end portion of the wire fixing clamp (205) connected to the clamping screw (204), and the end portion of the clamping screw (204) is plugged into the inner side of the plug hole (214).

6. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 5, characterized in that: An annular connecting groove (215) is provided on the inner wall of the plug hole (214), and an inserting groove is provided on the outer surface of the end portion of the clamping screw (204) located inside the plug hole (214).

7. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 6, characterized in that: An anti-dropout plug-in block (216) is plugged into the inner side of the plug-in slot, and one end of the anti-dropout plug-in block (216) is clamped into the inner side of the annular connecting slot (215) and is slidably connected to the annular connecting slot (215).

8. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: An anti-slip sheet (217) is provided on one side of the nut (213), and the anti-slip sheet (217) is embedded in the outer surface of the arc-shaped connecting block (203) and connected to the arc-shaped connecting block (203) via screws.

9. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: Positioning holes are provided at both ends of the spring sheet (504), a fixing pin is inserted in the middle of the positioning hole, and the fixing pin is fixedly connected to the conductive conductor insulation clamping block (503) and the inner wall of the mounting slot (6) in contact with the fixing pin.

10. The integrated linkage circuit breaker protection mechanism for primary and secondary integrated power equipment according to claim 1, characterized in that: An insulating sealing sleeve (4) is provided inside the wire connection hole (3), the length of the insulating sealing sleeve (4) being half the depth of the wire connection hole (3), the wire connected to the circuit breaker body (1) passing through the middle of the insulating sealing sleeve (4), and the inner diameter of the insulating sealing sleeve (4) being smaller than the outer diameter of the wire.

Images