A plastic molded case circuit breaker housing convenient to disassemble

Abstract

The utility model discloses a circuit breaker technical field's a kind of plastic case circuit breaker shell convenient to dismount, including equipment shell and apron, the upper end both sides of equipment shell are equipped with first connecting slot, the end both sides of equipment shell are equipped with second connecting slot, the inside of first connecting slot is equipped with first elastic member, the inside of second connecting slot is equipped with second elastic member, U type board is engaged in the first elastic member of first connecting slot, U type block is engaged in the second elastic member of second connecting slot;The utility model is through first connecting slot and first elastic member to realize the clamping connection to U type board, and through second connecting slot and second elastic member to realize the clamping connection to U type block, so that equipment shell can realize the installation connection to apron, keep stability;Through supporting spring and arc spring sheet to push and shove, and then keep the stability and clamping property of connection.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a molded case circuit breaker housing that is easy to disassemble and assemble. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and can close, carry, and interrupt current under abnormal circuit conditions within a specified time.

[0003] Circuit breakers are used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. They automatically disconnect the circuit when severe overloads, short circuits, or undervoltage faults occur, functioning similarly to a combination of a fuse switch and over / under-temperature relays. Furthermore, they generally do not require component replacement after interrupting a fault current. They have gained widespread application.

[0004] However, in the current circuit breakers, the upper cover plate is fixed and connected by bolts. This makes it difficult to disassemble and install the cover plate during use, and the disassembly and installation are extremely time-consuming. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a molded case circuit breaker housing that is easy to disassemble and assemble.

[0006] The purpose of this utility model is achieved as follows: a molded case circuit breaker housing that is easy to disassemble and assemble, comprising an equipment housing and a cover plate, wherein the cover plate is snapped onto the upper end face of the equipment housing; U-shaped plates are fixedly provided on both sides of the cover plate, and U-shaped blocks are fixedly provided on both sides of the end of the cover plate; The upper two sides of the device housing are provided with first connecting grooves, and the end two sides of the device housing are provided with second connecting grooves. The first connecting groove is provided with a first elastic element, and the second connecting groove is provided with a second elastic element. The U-shaped plate is engaged and connected in the first elastic element of the first connecting groove, and the U-shaped block is engaged and connected in the second elastic element of the second connecting groove.

[0007] Specifically, the first elastic member includes a first connecting part, a first tightening part, and a first arc part. The first connecting part is fixedly connected to both sides of the first connecting groove, the first tightening part is disposed between the first connecting part and the first arc part, and the first arc part is disposed at the bottom of the first connecting groove.

[0008] Specifically, the second elastic member includes a second connecting part, a second tightening part, and a second arc-shaped part. The second connecting part is fixedly connected to both sides of the second connecting groove, the second tightening part is disposed between the second connecting part and the second arc-shaped part, and the second arc-shaped part is disposed at the bottom of the second connecting groove.

[0009] Specifically, the second connecting groove is provided with two support springs fixedly connected to the inner wall, and the other ends of the two support springs are fixed to one side of the second tightening part.

[0010] Specifically, two arc-shaped elastic pieces are provided on both sides of the bottom of the second connecting groove. One end of the two arc-shaped elastic pieces is fixedly connected to the bottom of the second connecting groove, and the other end of the two arc-shaped elastic pieces is fixedly connected to the side wall of the second connecting groove. The two arc-shaped elastic pieces are attached to both sides of the second arc portion.

[0011] Specifically, an electrical component is installed inside the device housing, a switch is movably installed in the middle of the electrical component, a toggle plate is fixed on the switch, locking components are fixed at both ends of the device housing, a cable hole is opened in the middle of the locking component, and a locking screw is threadedly connected to the locking component on the cover plate.

[0012] Specifically, the cover plate has a toggle groove in the middle, and the toggle plate is movable inside the toggle groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this utility model achieves the snap-fit ​​connection of the U-shaped plate through the first connecting groove and the first elastic element, and achieves the snap-fit ​​connection of the U-shaped block through the second connecting groove and the second elastic element, so that the equipment shell can be installed and connected to the cover plate and maintain stability. Furthermore, the first and second tightening parts facilitate locking the U-shaped plate and U-shaped block, maintaining stability after connection and preventing loosening and detachment. The second elastic element is equipped with support springs on both sides of the second tightening part. The support springs push the second tightening part on both sides to keep the second tightening part clamping the U-shaped block, preventing loosening and detachment. The arc-shaped elastic sheet supports the lower second arc part, facilitating the expansion and support when the large end of the U-shaped block is inserted, making it easy to snap into place. After the large end of the U-shaped block is inserted, the support springs and arc-shaped elastic sheet push and clamp it to prevent the large end of the U-shaped block from falling off, thereby maintaining the stability and locking of the connection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a bottom view of the cover plate of this utility model.

[0017] Figure 3 This is a top view of the device casing of this utility model.

[0018] Figure 4 This is the utility model Figure 3 Sectional view at point A in the middle.

[0019] Figure 5 This is the utility model Figure 3 Sectional view at point B.

[0020] In the diagram: 1. Equipment casing; 2. Cover plate; 3. U-shaped plate; 4. U-shaped block; 5. First elastic element; 501. First connecting part; 502. First tightening part; 503. First arc part; 6. Second elastic element; 601. Second connecting part; 602. Second tightening part; 603. Second arc part; 604. Support spring; 605. Arc-shaped elastic sheet; 7. First connecting groove; 8. Second connecting groove; 9. Electrical component; 10. Switch; 11. Toggle plate; 12. Locking element; 13. Cable hole; 14. Locking screw; 15. Toggle groove. 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. 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.

[0022] like Figure 1-5 The molded case circuit breaker housing shown includes an outer casing 1 and a cover plate 2, which are snapped onto the upper surface of the outer casing 1. U-shaped plates 3 are fixedly provided on both sides of the cover plate 2, and U-shaped blocks 4 are fixedly provided on both sides of the end of the cover plate 2; The upper two sides of the equipment housing 1 are provided with first connecting grooves 7, and the lower two sides of the equipment housing 1 are provided with second connecting grooves 8. The first connecting groove 7 is provided with a first elastic element 5, and the second connecting groove 8 is provided with a second elastic element 6. The U-shaped plate 3 is engaged with the first elastic element 5 in the first connecting groove 7, and the U-shaped block 4 is engaged with the second elastic element 6 in the second connecting groove 8.

[0023] In this embodiment, preferably, the first elastic member 5 includes a first connecting part 501, a first tightening part 502 and a first arc part 503. The first connecting part 501 is fixedly connected to both sides of the first connecting groove 7, the first tightening part 502 is disposed between the first connecting part 501 and the first arc part 503, and the first arc part 503 is disposed at the bottom of the first connecting groove 7. It should be noted that the first elastic member 5 is fixedly installed inside the first connecting groove 7 through the first connecting part 501, and the first tightening part 502 is used to lock the U-shaped plate 3 to prevent the U-shaped plate 3 from loosening and falling off. The first arc part 503 is set to lock the large end of the lower end of the U-shaped plate 3.

[0024] In this embodiment, preferably, the second elastic member 6 includes a second connecting part 601, a second tightening part 602, and a second arc part 603. The second connecting part 601 is fixedly connected to both sides of the second connecting groove 8, the second tightening part 602 is disposed between the second connecting part 601 and the second arc part 603, and the second arc part 603 is disposed at the bottom of the second connecting groove 8. It should be noted that the second elastic member 6 is fixedly installed inside the second connecting groove 8 through the second connecting part 601, and the second tightening part 602 is used to lock the U-shaped block 4 to prevent the U-shaped block 4 from loosening and falling off. The second arc part 603 is set to lock the large end of the lower end of the U-shaped block 4.

[0025] In this embodiment, preferably, the interior of the second connecting groove 8 is provided with two support springs 604 fixedly connected to the inner wall, and the other end of the two support springs 604 is fixed to one side of the second tightening part 602. It should be noted that the support springs 604 on both sides can maintain the stability of the second tightening part 602 and provide elasticity, so that the second tightening part 602 can be stably locked and clamped to prevent loosening and falling off.

[0026] In this embodiment, preferably, two arc-shaped elastic pieces 605 are provided on both sides of the bottom of the second connecting groove 8. One end of the two arc-shaped elastic pieces 605 is fixedly connected to the bottom of the second connecting groove 8, and the other end of the two arc-shaped elastic pieces 605 is fixedly connected to the side wall of the second connecting groove 8. The two arc-shaped elastic pieces 605 are attached to both sides of the second arc portion 603. It should be noted that the second arc-shaped part 603 is pushed by the arc-shaped elastic pieces 605 on both sides, so that the second arc-shaped part 603 can push and clamp the U-shaped block 4, and can open when the U-shaped block 4 is pushed in. The upper fixed position is far away and the lower fixed position is close, which can maintain the fixation of the bottom end and the bending elasticity adjustment of the upper end.

[0027] In this embodiment, preferably, an electrical component 9 is installed inside the device housing 1, a switch 10 is movably installed in the middle of the electrical component 9, a toggle plate 11 is fixed on the switch 10, a locking component 12 is fixed at both ends of the device housing 1, a cable hole 13 is opened in the middle of the locking component 12, and a locking screw 14 is threadedly connected to the locking component 12 on the cover plate 2. It should be noted that the setting of electrical component 9 is used to connect the circuit, and the setting of switch 10 is used for on / off control. The setting of toggle plate 11 is used to facilitate the opening and closing control adjustment of switch 10. Locking component 12 is used to install and connect the connected wires through locking screw 14. That is, the end of the cable is inserted into the cable hole 13 and connected to electrical component 9, and then fixed by locking screw 14 to prevent loosening and poor contact.

[0028] In this embodiment, preferably, a toggle groove 15 is provided in the middle of the cover plate 2, and the toggle plate 11 is movably located inside the toggle groove 15. It should be noted that the setting of the actuation groove 15 on the cover plate 2 facilitates the up and down adjustment of the actuation plate 11.

[0029] The specific operational procedures for this application are as follows: When in use, strip the insulation from the end of the cable, insert the cable into the cable hole 13 of the locking member 12, then snap the cover plate 2 into the device housing 1, and then thread the locking screw 14 to fix the cable. Furthermore, when the cover plate 2 is engaged with the equipment housing 1, the U-shaped plate 3 and U-shaped block 4 at the lower part of the cover plate 2 are engaged into the first connecting groove 7 and the second connecting groove 8. The U-shaped plate 3 and U-shaped block 4 are locked in place by the first elastic element 5 and the second elastic element 6 to prevent them from loosening or falling off, and to maintain a stable connection between the cover plate 2 and the equipment housing 1, facilitating disassembly and installation. The first elastic element 5 and the second elastic element 6 respectively include a first connecting part 501, a first tightening part 502, a first arc part 503, a second connecting part 601, a second tightening part 602, and a second arc part 603. The first connecting part 501 and the second connecting part 601 engage and install the first elastic element 5 and the second elastic element 6, and the first tightening part 502 and the second arc part 603... The tightening part 602 can lock the U-shaped plate 3 and U-shaped block 4, preventing them from loosening or falling off. Supporting springs 604 and arc-shaped elastic pieces 605 are provided on both sides and at the bottom of the second elastic member 6. The supporting springs 604 push the second tightening part 602 on both sides, keeping the second tightening part 602 clamping the U-shaped block 4 and preventing loosening or falling off. The arc-shaped elastic pieces 605 support the lower second arc-shaped part 603, facilitating its expansion when the large end of the U-shaped block 4 is inserted, making it easy to snap into place. After the large end of the U-shaped block 4 is inserted, the supporting springs 604 and arc-shaped elastic pieces 605 push and clamp it, preventing the large end of the U-shaped block 4 from falling off, thus maintaining the stability and engagement of the connection.

[0030] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A molded case circuit breaker housing that is easy to disassemble and assemble, characterized in that, It includes a housing (1) and a cover plate (2), the cover plate (2) being snapped onto the upper surface of the housing (1); The cover plate (2) is fixedly provided with U-shaped plates (3) on both sides, and U-shaped blocks (4) are fixedly provided on both sides of the end of the cover plate (2). The upper two sides of the equipment housing (1) are provided with a first connecting groove (7), and the two sides of the end of the equipment housing (1) are provided with a second connecting groove (8). The first connecting groove (7) is provided with a first elastic element (5), and the second connecting groove (8) is provided with a second elastic element (6). The U-shaped plate (3) is engaged in the first elastic element (5) of the first connecting groove (7), and the U-shaped block (4) is engaged in the second elastic element (6) of the second connecting groove (8).

2. The easily detachable molded case circuit breaker housing according to claim 1, characterized in that, The first elastic member (5) includes a first connecting part (501), a first tightening part (502) and a first arc part (503). The first connecting part (501) is fixedly connected to both sides of the first connecting groove (7). The first tightening part (502) is disposed between the first connecting part (501) and the first arc part (503). The first arc part (503) is disposed at the bottom of the first connecting groove (7).

3. The easily disassembled molded case circuit breaker housing according to claim 1, characterized in that, The second elastic member (6) includes a second connecting part (601), a second tightening part (602), and a second arc part (603). The second connecting part (601) is fixedly connected to both sides of the second connecting groove (8). The second tightening part (602) is disposed between the second connecting part (601) and the second arc part (603). The second arc part (603) is disposed at the bottom of the second connecting groove (8).

4. The easily detachable molded case circuit breaker housing according to claim 3, characterized in that, The second connecting groove (8) is provided with two support springs (604) fixedly connected to the inner wall, and the other end of the two support springs (604) is fixed to one side of the second tightening part (602).

5. A molded case circuit breaker housing for easy assembly and disassembly according to claim 4, characterized in that, Two arc-shaped elastic pieces (605) are provided on both sides of the bottom of the second connecting groove (8). One end of the two arc-shaped elastic pieces (605) is fixedly connected to the bottom of the second connecting groove (8), and the other end of the two arc-shaped elastic pieces (605) is fixedly connected to the side wall of the second connecting groove (8). The two arc-shaped elastic pieces (605) are attached to both sides of the second arc portion (603).

6. The easily detachable molded case circuit breaker housing according to claim 1, characterized in that, An electrical component (9) is installed inside the housing (1) of the device. A switch (10) is movably installed in the middle of the electrical component (9). A toggle plate (11) is fixed on the switch (10). Locking components (12) are fixed at both ends of the housing (1). A cable hole (13) is opened in the middle of the locking component (12). A locking screw (14) is threadedly connected to the locking component (12) on the cover plate (2).

7. A molded case circuit breaker housing for easy assembly and disassembly according to claim 6, characterized in that, The cover plate (2) has a toggle groove (15) in the middle, and the toggle plate (11) is movable inside the toggle groove (15).

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