Secondary fuse breaker with dustproof sealing structure

Abstract

The utility model discloses a primary and secondary fusion pole-mounted circuit breaker with dustproof sealing structure, including bearing assembly, and bearing assembly includes the box, and the inner wall edge of box is fixedly connected with the fixed ring, and the lower extreme of fixed ring is installed with the protection board, and the protection board and fixed ring are clamped with the sealing washer, and the upper end of box is installed with three protection components no.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure. Background Technology

[0002] In the power distribution network of the power system, the primary and secondary integrated pole-mounted circuit breaker is a key device for realizing line protection, control and monitoring. It is widely used in outdoor overhead distribution line branches, user incoming lines and other scenarios, and is of great significance to ensuring the safe and stable operation of the power system.

[0003] Because they operate outdoors for extended periods, primary and secondary integrated pole-mounted circuit breakers must withstand the challenges of complex natural conditions, including wind and rain erosion, dust accumulation, and drastic temperature and humidity changes. After prolonged use, the original waterproof and dustproof structures of ordinary integrated pole-mounted circuit breakers are prone to aging and deterioration of sealing performance. Key components such as vacuum tubes, sensors, and current transformers are in direct contact with the external environment. In harsh weather or dusty environments, moisture can easily seep into the components, reducing insulation performance and causing faults such as short circuits and leakage. Simultaneously, dust accumulation not only affects the heat dissipation performance of the components but may also interfere with the detection accuracy of sensors and the metering accuracy of current transformers, leading to malfunctions or failures to operate. In severe cases, this can cause power outages, affecting the reliability and security of power supply. While some traditional protective measures can provide some degree of shielding, they lack a systematic sealing design and cannot form a long-term effective protective barrier, failing to fundamentally solve the problem of deteriorated waterproof and dustproof performance after prolonged outdoor operation. Utility Model Content

[0004] The purpose of this utility model is to provide a primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure, which has the advantages of high dustproof and waterproof performance and strong protection, and solves the problem of component failure affecting use due to poor dustproof and waterproof effect in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure includes a load-bearing assembly. The load-bearing assembly includes a housing. A fixing ring is fixedly connected to the inner wall edge of the housing. A protective plate is installed at the lower end of the fixing ring. A sealing gasket is sandwiched between the protective plate and the fixing ring. Three protective components are installed at equal intervals at the front and back at the upper end of the housing. Each protective component includes a protective sleeve installed at the upper end of the housing. A groove is opened at the lower end of the protective sleeve. A sealing ring is fixedly connected in the groove. The lower end of the sealing ring fits against the upper end of the housing. A second protective sleeve is installed at the upper end of the protective sleeve. Three slots are opened at equal intervals at the front and back at the right end of the housing. Each slot is equipped with a second protective component. Each second protective component includes a connecting pipe set in the slot. A nut is threaded on the outer wall of the connecting pipe. A second sealing ring is fixedly connected to the left end of the nut. The left end of the second sealing ring fits against the right end of the housing. A third protective sleeve is fixedly connected to the upper end of the connecting pipe. The circuit breaker is installed inside the housing.

[0007] Preferably, the lower end of the fixing ring is provided with several equally spaced screw holes, and the lower end of the protective plate is provided with several equally spaced screw holes, the screw holes corresponding one-to-one with the screw holes. The protective plate is fixedly installed at the lower opening of the box by bolts.

[0008] It is worth noting that the protective plate can be fixed to the lower end of the fixing ring with bolts, and the protective plate can be pressed against the fixing gasket to form a seal on the box, thereby protecting the circuit breaker.

[0009] Preferably, the upper end of the box has three slots equidistant from front to back, and the upper end of the box has several screw holes equidistant from back to back around the slots. Vacuum tubes are fixedly connected in each slot, and the vacuum tubes are located inside the protective sleeve and the protective sleeve.

[0010] It is worth noting that protective sleeve one and protective sleeve two can protect the vacuum tube, providing it with dust and water resistance.

[0011] Preferably, the lower end of the protective sleeve one is provided with a screw hole four, which corresponds one-to-one with screw hole three. The protective sleeve one is fixedly installed on the upper end of the box by bolts.

[0012] It is worth noting that the protective sleeve can be fixedly installed by bolts, and the sealing ring can be pressed against the outer wall of the box to ensure the sealing performance of the protective sleeve.

[0013] Preferably, a screw hole five is provided through the upper edge of the first protective sleeve, and a screw hole six is ​​provided at the lower edge of the second protective sleeve. The screw hole six corresponds to the screw hole five one-to-one. The second protective sleeve is fixedly installed on the upper end of the first protective sleeve by bolts.

[0014] It is worth noting that by connecting the first protective sleeve and the second protective sleeve with bolts, the sealing between the two protective sleeves can be ensured, and the protective sleeves can be disassembled and replaced individually, which facilitates the maintenance of the vacuum tube.

[0015] Preferably, the outer wall of the second protective sleeve is provided with a slot three, a fixing post is fixedly connected in the slot three, and a current transformer is threaded onto the outer wall of the fixing post.

[0016] It is worth noting that the fixing column can help fix the current transformer, and at the same time improve the stability of the protective sleeve.

[0017] Preferably, the current transformer is located inside the protective sleeve three.

[0018] Preferably, a sensor is also installed on the lower inner wall of the protective sleeve three.

[0019] It is worth noting that the protective sleeve can protect the current transformer and sensor, while also providing waterproof and dustproof performance for the current transformer and sensor.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This utility model protects the circuit breaker through the enclosure. The sealing gasket fills the gap between the protective plate and the fixing ring, thereby ensuring the waterproof and dustproof performance of the enclosure. The first sealing ring fills the gap between the first protective sleeve and the enclosure to ensure the sealing of the protective components, thereby protecting the external components. The nut can fit and tighten the second sealing ring, so that the second sealing ring fills the gap between the connecting pipe and the first slot, ensuring the sealing between the enclosure and the connecting pipe, thereby ensuring its dustproof and waterproof performance. The third protective sleeve can protect the components, improve the dustproof and waterproof performance of the components, thereby ensuring the stability of the circuit breaker operation. Attached Figure Description

[0022] Figure 1 This is an isometric view of the overall structure of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a three-dimensional structural breakdown diagram of the load-bearing component of this utility model;

[0025] Figure 4 This is a three-dimensional structural disassembly diagram of the protective component one of this utility model;

[0026] Figure 5 This is a three-dimensional structural disassembly diagram of the second protective component of this utility model.

[0027] Reference numerals in the attached drawings: 1. Bearing component; 101. Housing; 102. Fixing ring; 103. Screw hole one; 104. Sealing gasket; 105. Protective plate; 106. Screw hole two; 107. Screw hole three; 108. Slot one; 109. Slot two; 2. Protective component one; 201. Protective sleeve one; 202. Slot; 203. Sealing ring one; 204. Screw hole four; 205. Screw hole five; 206. Screw hole six; 207. Protective sleeve two; 208. Slot three; 209. Vacuum tube; 210. Fixing column; 3. Protective component two; 301. Current transformer; 302. Sensor; 303. Protective sleeve three; 304. Connecting pipe; 305. Nut; 306. Sealing ring two. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To address the problem of component failures and reduced usability due to inadequate dust and water resistance in existing technologies, the following technical solution is provided. Please refer to [link / reference needed]. Figures 1-5 ;

[0030] A primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure includes a load-bearing assembly 1. The load-bearing assembly 1 includes a housing 101. A fixing ring 102 is fixedly connected to the inner wall edge of the housing 101. A protective plate 105 is installed at the lower end of the fixing ring 102. A sealing gasket 104 is sandwiched between the protective plate 105 and the fixing ring 102. Three protective assemblies 2 are installed at equal intervals at the front and back of the housing 101. Each protective assembly 2 includes a protective sleeve 201 installed at the upper end of the housing 101. A groove 202 is opened at the lower end of the protective sleeve 201. A sealing ring 203 is fixedly connected in the groove 202. The lower end of 03 is attached to the upper end of the box 101. The upper end of the protective sleeve 1 201 is equipped with the protective sleeve 207. The right end of the box 101 has three slots 108 with equal front and rear spacing. Each slot 108 is equipped with a protective component 2 3. The protective component 2 3 includes a connecting pipe 304 set in the slot 108. The outer wall of the connecting pipe 304 is threaded with a nut 305. The left end of the nut 305 is fixed with a sealing ring 2 306. The left end of the sealing ring 2 306 is attached to the right end of the box 101. The upper end of the connecting pipe 304 is fixed with the protective sleeve 303. A circuit breaker is installed inside the box 101.

[0031] The enclosure 101 protects the circuit breaker. The sealing gasket 104 fills the gap between the protective plate 105 and the fixing ring 102, thus ensuring the waterproof and dustproof performance of the enclosure 101. The sealing ring 203 fills the gap between the protective sleeve 201 and the enclosure 101 to ensure the sealing of the protective components, thereby protecting the external components. The nut 305 can fit and tighten the sealing ring 306, so that the sealing ring 306 fills the gap between the connecting pipe 304 and the slot 108, ensuring the sealing between the enclosure 101 and the connecting pipe 304, thereby ensuring its dustproof and waterproof performance. The protective sleeve 303 protects the components and improves their dustproof and waterproof performance, thereby ensuring the stability of the circuit breaker operation.

[0032] Please see Figure 3 The lower end of the fixing ring 102 is provided with several equally spaced screw holes 103, and the lower end of the protective plate 105 is provided with several equally spaced screw holes 106. The screw holes 106 correspond one-to-one with the screw holes 103. The protective plate 105 is fixedly installed in the lower opening of the enclosure 101 by bolts. The protective plate 105 can be fixed to the lower end of the fixing ring 102 by bolts, and the protective plate 105 can press the sealing gasket 104 to form a seal on the enclosure 101, thereby protecting the circuit breaker. The upper end of the housing 101 has three slots 109 equidistant from front to back. The upper end of the housing 101 also has several screw holes 107 equidistant from back to front around the slots 109. Vacuum tubes 209 are fixedly connected to each slot 109. The vacuum tubes 209 are located inside the protective sleeves 201 and 207. The protective sleeves 201 and 207 can protect the vacuum tubes 209 and provide them with dustproof and waterproof capabilities.

[0033] Please see Figure 4The lower end of the protective sleeve 201 has a through-hole 204, which corresponds to the screw hole 107. The protective sleeve 201 is fixedly installed on the upper end of the housing 101 by bolts. The bolts fix the protective sleeve 201 in place and make the sealing ring 203 fit and press against the outer wall of the housing 101 to ensure the airtightness of the protective sleeve 201. The upper edge of the protective sleeve 201 has a through-hole 205, and the lower edge of the protective sleeve 207 has a screw hole 206, which corresponds to the screw hole 205. The protective sleeve 207 is fixedly installed on the upper end of the protective sleeve 201 by bolts. The connection between the protective sleeve 201 and the protective sleeve 207 by bolts ensures the airtightness between the protective sleeve 201 and the protective sleeve 207. The protective sleeves can be disassembled and replaced individually, which facilitates the maintenance of the vacuum tube 209. The outer wall of the second protective sleeve 207 has a through slot 3 208, and a fixing post 210 is fixedly connected in the slot 3 208. The external wall of the fixing post 210 is threaded with a current transformer 301. The fixing post 210 can help fix the current transformer 301, and at the same time, the stability of the third protective sleeve 303 is improved.

[0034] Please see Figure 5 The current transformer 301 is located inside the protective sleeve 303; the sensor 302 is also installed on the lower inner wall of the protective sleeve 303; the protective sleeve 303 can protect the current transformer 301 and the sensor 302, and at the same time, the current transformer 301 and the sensor 302 are waterproof and dustproof.

[0035] Working principle: The circuit breaker is protected by the enclosure 101. The sealing gasket 104 fills the gap between the protective plate 105 and the fixing ring 102. The sealing ring 203 fills the gap between the protective sleeve 201 and the enclosure 101 to ensure the sealing of the protective components, thereby protecting the vacuum tube 209. The nut 305 can fit and tighten the sealing ring 306, so that the sealing ring 306 fills the gap between the connecting pipe 304 and the slot 108, ensuring the sealing between the enclosure 101 and the connecting pipe 304, thereby ensuring its dustproof and waterproof performance. The protective sleeve 303 can protect the current transformer 301 and the sensor 302. The bolts can fix the protective sleeve 201 and make the sealing ring 203 fit and tighten against the outer wall of the enclosure 101 to ensure the sealing of the protective sleeve 201. The protective sleeve 201 and the protective sleeve 207 can provide protection for the vacuum tube 209, providing the vacuum tube 209 with dustproof and waterproof capabilities.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A primary and secondary fused circuit breaker with dustproof sealing structure, comprising a bearing assembly (1), characterized in that, The load-bearing component (1) includes a housing (101), a fixing ring (102) is fixedly connected to the inner wall edge of the housing (101), a protective plate (105) is installed at the lower end of the fixing ring (102), and a sealing gasket (104) is sandwiched between the protective plate (105) and the fixing ring (102). Three protective components (2) are installed at equal intervals at the front and back at the upper end of the housing (101). The protective components (2) include a protective sleeve (201) installed at the upper end of the housing (101). A groove (202) is opened at the lower end of the protective sleeve (201), and a sealing ring (203) is fixedly connected in the groove (202). The lower end of the sealing ring (203) fits against the housing (101). At the upper end of the enclosure (101), a second protective sleeve (207) is installed on the upper end of the first protective sleeve (201). Three slots (108) with equal front and rear spacing are opened through the right end of the enclosure (101). A second protective component (3) is installed in each slot (108). The second protective component (3) includes a connecting pipe (304) set in the slot (108). A nut (305) is installed on the outer wall thread of the connecting pipe (304). A second sealing ring (306) is fixed to the left end of the nut (305). The left end of the second sealing ring (306) is attached to the right end of the enclosure (101). A third protective sleeve (303) is fixed to the upper end of the connecting pipe (304). A circuit breaker is installed inside the enclosure (101).

2. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 1, characterized in that, The lower end of the fixing ring (102) is provided with several equally spaced screw holes (103), and the lower end of the protective plate (105) is provided with several equally spaced screw holes (106). The screw holes (106) correspond one-to-one with the screw holes (103). The protective plate (105) is fixedly installed at the lower opening of the box (101) by bolts.

3. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 1, characterized in that, The upper end of the box (101) is provided with three slots (109) that are equidistant from front to back. The upper end of the box (101) is provided with several screw holes (107) that are equidistant from back to back around the slots (109). Vacuum tubes (209) are fixedly connected in each slot (109). The vacuum tubes (209) are located inside the protective sleeve (201) and the protective sleeve (207).

4. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 3, characterized in that, The lower end of the protective sleeve (201) is provided with a screw hole (204), which corresponds to the screw hole (107) one by one. The protective sleeve (201) is fixedly installed on the upper end of the box (101) by bolts.

5. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 4, characterized in that, The upper edge of the first protective sleeve (201) is provided with a screw hole five (205), and the lower edge of the second protective sleeve (207) is provided with a screw hole six (206). The screw hole six (206) corresponds one-to-one with the screw hole five (205). The second protective sleeve (207) is fixedly installed on the upper end of the first protective sleeve (201) by bolts.

6. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 5, characterized in that, The outer wall of the second protective sleeve (207) is provided with a slot three (208), and a fixing post (210) is fixedly connected in the slot three (208). A current transformer (301) is threaded on the outer wall of the fixing post (210).

7. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 6, characterized in that, The current transformer (301) is located inside the protective sleeve three (303).

8. The primary and secondary integrated pole-mounted circuit breaker with a dustproof and sealed structure according to claim 7, characterized in that, A sensor (302) is also installed on the lower inner wall of the protective sleeve three (303).

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