Circuit breaker shell and mounting back frame

Abstract

The utility model discloses a circuit breaker housing and an installation back frame, the circuit breaker housing comprises a housing main body, one side of the housing main body is provided with an installation groove, the surface of the installation groove is fixedly connected with connection insertion sheets, the number of the connection insertion sheets is two, and the connection insertion sheets are symmetrically distributed in the installation groove. First clamping grooves are formed in the sides, close to the mounting groove, of the top and the bottom of the shell body, and guide-in slopes are arranged on the sides, close to the back face of the shell body, of the clamping grooves. The back frame comprises the circuit breaker shell and further comprises a back plate, the section of the back plate is in a] shape, one side of the back plate is symmetrically and fixedly connected with first buckle plates of the second clamping grooves, the top and the bottom of the back plate are fixedly connected with second buckle plates of the first clamping grooves, and the surface of the back plate is further provided with mounting holes. The utility model relates to the technical field of circuit breaker fixation. According to the circuit breaker shell and the mounting back frame, the mounting stability is improved, and mounting is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker fixing technology, specifically to a circuit breaker housing and mounting bracket. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions and closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. In home decoration and renovation, circuit breakers are core equipment for ensuring circuit safety. Existing circuit breakers are typically installed inside a home distribution box, which has a back frame. The circuit breaker is mounted on the back frame surface via two clips on the back, connected by springs. During installation, external force compresses the spring in the lower clip, causing the upper clip to lock into place on the back frame surface, thus securing the circuit breaker. However, due to repeated disassembly and reassembly, the springs are prone to failure, leading to loosening of the circuit breaker over time. Furthermore, the limited space inside the distribution box makes it inconvenient to move, disassemble, and replace damaged circuit breakers later. Utility Model Content

[0003] To address the aforementioned shortcomings, this utility model provides a circuit breaker housing and mounting bracket, which improves installation stability and facilitates installation.

[0004] To achieve the above objectives, the present invention provides a circuit breaker housing, comprising a main body, a mounting groove on one side of the main body, a connecting insert fixedly connected to the surface of the mounting groove, two connecting inserts symmetrically distributed within the mounting groove, a slot on the top and bottom of the main body near the mounting groove, and an guide slope on the slot near the back of the main body.

[0005] Preferably, the connecting insert and the outer shell body are an integral structure, and the top and bottom of the outer shell body and the side near the front of the outer shell body are provided with anti-slip protrusions.

[0006] Preferably, the connecting insert includes an insert body, the surface of which is provided with a first inclined surface and a second inclined surface. The first inclined surface is located on the side near the back of the outer shell body, and the surface of the second inclined surface is also provided with a second slot.

[0007] Preferably, the angle between the first inclined plane and the horizontal plane is 3-8°, the angle between the second inclined plane and the horizontal plane is 15-20°, and the cross-section of the second slot is arc-shaped.

[0008] Preferably, the included angle between the inclined plane and the horizontal plane is 35-40°.

[0009] A mounting bracket includes a circuit breaker housing as described above, and also includes a back plate. The back plate has a cross-section in the shape of "]". A first snap plate with a second snap groove is symmetrically fixedly connected to one side of the back plate. A second snap plate with a first snap groove is fixedly connected to the top and bottom of the back plate. The surface of the back plate is also provided with mounting holes.

[0010] Preferably, the distance between one side of the connecting insert and the mounting groove is equal to the thickness of the back plate, and after the outer shell body is installed in place, one side of the back plate abuts against the surface of the mounting groove.

[0011] Preferably, the surfaces of the first and second buckle plates are provided with equally spaced dividing seams along their length.

[0012] Preferably, one side of the second buckle plate is provided with an arc-shaped plate that matches the guide slope.

[0013] The first and second buckle plates are made of spring steel.

[0014] The present invention adopts the above-mentioned technical solution, and its beneficial effects include: the circuit breaker housing, by setting connecting inserts and slots on the back, increases the support spacing of the circuit breaker and improves its stability. At the same time, it can be directly inserted or pulled out during disassembly and assembly, which facilitates installation and replacement; the mounting back frame, by setting the first and second snap-on plates, achieves stronger snap-fit ​​capability and avoids loosening of the circuit breaker. At the same time, the surface of the first and second snap-on plates is set with a dividing seam, which does not affect the stability of adjacent circuit breakers during disassembly and assembly. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of the circuit breaker housing and mounting frame of this utility model;

[0016] Figure 2 This is a side view of the overall structure of the circuit breaker housing and mounting frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the circuit breaker housing of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure for installing the back frame of this utility model.

[0019] In the diagram: 1-Outer shell body, 2-Mounting groove, 3-Connecting insert, 31-Insert body, 32-First bevel, 33-Second bevel, 34-Slot 2, 4-Slot 1, 5-Introducing bevel, 6-Anti-slip protrusion, 7-Back plate, 8-First buckle plate, 9-Second buckle plate, 10-Mounting hole, 11-Separation seam, 12-Curved plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Example 1: Please refer to Figure 1-4 This utility model provides a technical solution: a circuit breaker housing, including a main body 1, a mounting groove 2 on one side of the main body 1, and a connecting insert 3 fixedly connected to the surface of the mounting groove 2. Two connecting inserts 3 are symmetrically distributed within the mounting groove 2. The connecting inserts 3 and the main body 1 are integrally formed. The connecting insert 3 includes an insert body 31, and the surface of the insert body 31 is provided with a first inclined surface 32 and a second inclined surface 33. The first inclined surface 32 is located on the side near the back of the main body 1, and the second inclined surface 33... The surface is also provided with a second slot 34. The cross-section of the second slot 34 is arc-shaped. The angle between the first inclined surface 32 and the horizontal plane is 3-8°, and the angle between the second inclined surface 33 and the horizontal plane is 15-20°. The second inclined surface 33 facilitates the deformation of the buckle and its sliding into the first inclined surface 32 during insertion and installation. The first inclined surface 32 and the second slot 34 ensure that the outer shell body 1 can be subjected to a component force perpendicular to the back frame, so that the outer shell body 1 is close to the back frame, improving stability. The arc-shaped slot facilitates the installation and removal of the buckle.

[0022] The top and bottom of the outer casing 1, near the mounting groove 2, are provided with slots 4. The cross-section of slot 4 forms a right-angled triangle with the horizontal plane. A guide slope 5 is provided on the side of slot 4 near the back of the outer casing 1, with the included angle between the guide slope 5 and the horizontal plane being 35-40°. The slots 4 increase the support spacing compared to existing circuit breaker fixing structures, and together with the connecting inserts 3, further improve the stability of the circuit breaker.

[0023] Anti-slip protrusions 6 are provided on the top and bottom of the main body 1 and on the side near the front of the main body 1, which facilitates the plugging and unplugging of the circuit breaker.

[0024] A mounting bracket includes a circuit breaker housing as described above, and also includes a back plate 7. The back plate 7 has a cross-section in the shape of "]". The width of the back plate 7 is equal to the width of the mounting groove 2. A first snap plate 8 with a snap-fit ​​groove 34 is symmetrically fixedly connected to one side of the back plate 7. A second snap plate 9 with a snap-fit ​​groove 4 is fixedly connected to the top and bottom of the back plate 7. The surface of the back plate 7 is also provided with mounting holes 10.

[0025] The distance between one side of the connecting insert 3 and the mounting groove 2 is equal to the thickness of the back plate 7. After the outer shell body 1 is installed in place, one side of the back plate 7 abuts against the surface of the mounting groove 2. After installation, one side of the connecting insert 3 is close to the inner wall of the back plate 7. At the same time, the top of the back plate 7 contacts the surface of the mounting groove 2, so that one side of the back plate 7 is inserted between the connecting insert 3 and the mounting groove 2. Meanwhile, the connecting insert 3 can also be engaged with the first snap plate 8, thus fixing the circuit breaker housing.

[0026] The surfaces of the first snap plate 8 and the second snap plate 9 are provided with equally spaced dividing seams 11 along their length. The dividing seams 11 prevent the impact on adjacent circuit breakers during installation or disassembly. The dividing seams 11 divide the surface of the snap plate into smaller snap pieces, which are more prone to deformation than a whole piece, reducing the force required for installation or disassembly.

[0027] The second snap plate 9 has an arc-shaped plate 12 on one side that matches the guide slope 5. During installation, the arc-shaped plate 12 first contacts the guide slope 5, causing the second snap plate 9 to deform, thus facilitating the insertion of the circuit breaker. The first snap plate 8 also has an arc-shaped protrusion on one side that matches the second slot 34.

[0028] The first clip plate 8 and the second clip plate 9 are made of spring steel, which is not easily deformed and has strong resettlement properties, thus preventing the circuit breaker from loosening later.

[0029] During installation, align the connecting insert 3 with the gap between the first snap plate 8 and the back plate 7. At this time, the arc plate 12 contacts the guide slope 5, and one side of the first snap plate 8 contacts the first slope 32. Continue to apply a force perpendicular to the surface of the back plate 7, causing the first snap plate 8 and the second snap plate 9 to deform. At this time, the outer shell body 1 moves towards the back plate 7 until the arc plate 12 contacts the surface of the first slot 4 and the arc protrusion on the surface of the first snap plate 8 contacts the second slope 33. Then, the arc protrusion on the surface of the first snap plate 8 quickly enters the second slot 34. At this time, one side of the back plate 7 abuts against the surface of the mounting groove 2, completing the installation of the circuit breaker. When disassembly is required, break free from the clamping force of the snap plate and pull it out directly.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is merely a preferred embodiment of the prior art for fixing and installing this utility model, and is not intended to limit this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A circuit breaker housing, comprising a housing body (1), characterized in that: The outer shell body (1) has a mounting groove (2) on one side. A connecting insert (3) is fixedly connected to the surface of the mounting groove (2). There are two connecting inserts (3) symmetrically distributed in the mounting groove (2). The top and bottom of the outer shell body (1) and the side near the mounting groove (2) are provided with a slot (4). The slot (4) and the side near the back of the outer shell body (1) are provided with an inlet slope (5).

2. A circuit breaker housing according to claim 1, characterized in that: The connecting insert (3) and the outer shell body (1) are an integral structure. The top and bottom of the outer shell body (1) and the side close to the front of the outer shell body (1) are provided with anti-slip protrusions (6).

3. A circuit breaker housing according to claim 1, characterized in that: The connecting insert (3) includes an insert body (31). The surface of the insert body (31) is provided with a first inclined surface (32) and a second inclined surface (33). The first inclined surface (32) is located on one side near the back of the outer shell body (1). The surface of the second inclined surface (33) is also provided with a second slot (34).

4. A circuit breaker housing according to claim 3, characterized in that: The angle between the first inclined plane (32) and the horizontal plane is 3-8°, the angle between the second inclined plane (33) and the horizontal plane is 15-20°, and the cross-section of the second slot (34) is arc-shaped.

5. A circuit breaker housing according to claim 1, characterized in that: The included angle between the horizontal plane and the guide slope (5) is 35-40°.

6. A mounting bracket, comprising a circuit breaker housing as described in any one of claims 1-5, and further comprising a back plate (7), characterized in that: The back plate (7) has a cross-section in the shape of "]". A first buckle plate (8) with a second buckle groove (34) is symmetrically fixedly connected to one side of the back plate (7). A second buckle plate (9) with a first buckle groove (4) is fixedly connected to the top and bottom of the back plate (7). The surface of the back plate (7) is also provided with mounting holes (10).

7. A mounting frame according to claim 6, characterized in that: The distance between one side of the connecting insert (3) and the mounting groove (2) is equal to the thickness of the back plate (7). After the outer shell body (1) is installed in place, one side of the back plate (7) abuts against the surface of the mounting groove (2).

8. A mounting frame according to claim 6, characterized in that: The first buckle plate (8) and the second buckle plate (9) have equally spaced dividing seams (11) along their length.

9. A mounting frame according to claim 6, characterized in that: The second snap plate (9) has an arc-shaped plate (12) on one side that is adapted to the guide slope (5).

10. A mounting frame according to claim 6, characterized in that: The first buckle plate (8) and the second buckle plate (9) are made of spring steel.

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