Circuit breaker protective cover mounting structure

Abstract

The utility model discloses a circuit breaker protective cover installation structure, which comprises an upper cover arranged on a middle seat, an installation groove and a protective cover, and is characterized in that a first connecting part and a second connecting part are arranged at the opening end of the protective cover, and a first connecting groove and a second connecting groove are correspondingly arranged on the side edge of the upper cover; when the protective cover is closed in the mounting groove, the first connecting part and the second connecting part are driven to be inserted into the first connecting groove and the second connecting groove correspondingly, and then the first connecting part and the second connecting part are fixed into the first connecting groove and the second connecting groove through the first fastening structure and the second fastening structure correspondingly. The protective cover is guaranteed to be in a closed state and not to be opened at will, the installation structural strength of the protective cover is enhanced, the impact resistance is better, the protective cover can well cope with the impact effect borne by a breaker breaking test, and the situation that the protective cover violently shakes and even is opened by impact due to the impact effect is avoided; the mounting stability of the protective cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a circuit breaker protective cover installation structure. Background Art

[0002] The intelligent measuring circuit breaker has the functions of normal connection and disconnection of the distribution power lines, as well as overload and short-circuit protection. It integrates high-precision and high-stability metering modules, carrier modules and controller modules, enabling it to have functions such as automatic topology identification, communication encryption, and rapid determination of low-voltage fault information.

[0003] In order to facilitate the installation and replacement of the carrier module and the controller module on the circuit breaker, the carrier module and the controller module are usually combined and installed in the installation groove opened on the top of the intelligent circuit breaker in a plug-in manner, and a protective cover for covering the carrier module and the controller module is provided at the installation groove. Since the installation requirements of the carrier module and the controller module must be met at the same time, the installation groove is required to be made larger in volume on the circuit breaker, and the area of ​​the entire protective cover is correspondingly made larger, which is basically set to be equal to the width of the circuit breaker. Although the protective cover is fixed to the top of the circuit breaker by a snap-fit ​​method when closed, gas is generated inside the circuit breaker during the breaking test and impacts the protective cover. Since the protective cover has a large area and a single fixing point, the protective cover will be violently shaken or even lifted up by the impact, which is easy to cause damage to the protective cover, poor installation stability, and insufficient protection. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the gas generated by the circuit breaker during the breaking test will impact the protective cover, causing the protective cover to shake violently or even be lifted up due to the impact, resulting in damage to the protective cover and poor installation stability.

[0005] In order to solve the above technical problems, the utility model provides a circuit breaker protective cover mounting structure, which is used for measuring circuit breakers, and includes a middle seat and an upper cover and a mounting groove adjacent to the middle seat. The opening of the mounting groove is rotatably provided with an openable or closable protective cover. The protective cover includes a rotating end hinged to the middle seat and an opening end adjacent to the upper cover. The opening end is fixedly connected to the upper cover through a connecting structure. The connecting structure includes:

[0006] A first connecting assembly includes a first connecting groove disposed on a side of the upper cover, a first connecting portion extending at the open end and adapted to be accommodated in the first connecting groove, and a first fastening structure for fixing the first connecting portion in the first connecting groove;

[0007] The second connecting component includes a second connecting groove arranged on the side of the upper cover, a second connecting part extending at the open end and suitable for being accommodated in the second connecting groove, and a second fastening structure for fixing the second connecting part in the second connecting groove; the first connecting part and the second connecting part are respectively arranged on the open end close to the left and right side edges of the protective cover.

[0008] In the above-mentioned circuit breaker protective cover installation structure, the first fastening structure includes a first connecting hole arranged in the first connecting groove and penetrating the upper cover, a nut column embedded in the middle seat and located below the first connecting hole, and a lead sealing screw that passes through the first connecting part and the second connecting hole and is fastened in the nut column.

[0009] In the above-mentioned circuit breaker protective cover installation structure, the first connecting part includes a first connecting piece integrally extended and formed on the open end, a connecting boss arranged at the bottom of the first connecting piece, and an accommodating groove extending between the first connecting piece and the connecting boss, and a first through hole communicating with the accommodating groove is penetrated at the bottom end of the connecting boss, so that the lead sealing screw passes through the first through hole to fix the first connecting part in the first connecting groove.

[0010] In the above-mentioned circuit breaker protective cover installation structure, the head of the lead sealing screw is accommodated in the accommodating groove, and a limiting clamping platform is provided to cooperate and abut against the connecting boss.

[0011] In the above-mentioned circuit breaker protective cover installation structure, the first connecting piece remains flush with the upper cover when the protective cover is closed in the installation groove, the notch of the accommodating groove is opened in the first connecting piece, and a buckle cover covering the lead sealing screw is installed at the notch.

[0012] In the above-mentioned circuit breaker protective cover mounting structure, the second fastening structure includes a second connecting hole arranged in the second connecting groove and penetrating the upper cover, a fixing column arranged on the middle seat and located below the second connecting hole, and a fixing screw that passes through the first connecting portion and the second connecting hole and is fastened in the fixing column, and the fixing column is provided with a threaded hole that cooperates with the fixing screw.

[0013] In the above-mentioned circuit breaker protective cover installation structure, the first connecting portion includes a second connecting piece integrally formed on the open end and extending in the same direction as the first connecting piece, and a second through hole arranged on the second connecting piece for the fixing screw to pass through, so that the second connecting piece is fixed in the second connecting groove when the fixing screw is tightened.

[0014] In the above-mentioned circuit breaker protective cover installation structure, one end of the second connecting piece is bent in an L shape and connected to the bottom side of the open end, and the other end is a circular end adapted to the shape and size of the second connecting groove, and the fixing screw is accommodated in the second connecting groove after installation.

[0015] In the above-mentioned circuit breaker protective cover installation structure, the side edges of the protective cover are flush with the side walls of the middle seat, the distance between the first connecting portion and the second connecting portion is at least half of the length of the open end, and the first connecting groove and the second connecting groove respectively have slots extending to the side edges of the upper cover.

[0016] Compared with the prior art, the technical solution of the utility model has the following advantages:

[0017] 1. In the circuit breaker protective cover installation structure provided by the utility model, a first connection part and a second connection part are provided on the opening end of the protective cover, and a first connection groove and a second connection groove are provided on the side of the upper cover correspondingly. When the protective cover is closed in the installation groove, the first connection part and the second connection part are just driven to be inserted into the first connection groove and the second connection groove respectively, and then the first connection part and the second connection part are fixedly installed in the first connection groove and the second connection groove respectively through the first fastening structure and the second fastening structure, so that two fixed connections are played between the protective cover and the upper cover, ensuring that the protective cover is in a closed state and is not opened at will, and by reasonably designing the installation distance between the first connection part and the second connection part, it is ensured that the force at the two installation positions of the protective cover is more balanced and stable, the installation structure strength of the protective cover is enhanced, and the impact resistance is better, so that the protective cover can well cope with the impact of the circuit breaker breaking test, avoid the protective cover from being violently shaken or even opened by the impact due to the impact, and improve the installation stability of the protective cover.

[0018] 2. In the circuit breaker protective cover installation structure provided by the utility model, a first connecting hole penetrating the upper cover is provided in the first connecting groove, and a nut column located below the first connecting hole is embedded in the middle seat. When the protective cover is closed to cover the installation groove, the first connecting part is accommodated in the first connecting groove of the upper cover, and then a lead sealing screw is passed through the first connecting part and the first connecting hole and is fastened to the nut column. After the lead sealing screw is fixed, the first connecting part is firmly locked in the locking groove, thereby realizing the locking installation of the protective cover. The lead sealing screw plays the role of anti-loosening, anti-dropping and anti-tampering through the lead sealing method, thereby preventing the protective cover from being illegally opened and performing non-standard operations on the controller component in the installation groove, thereby ensuring safety.

[0019] 3. In the circuit breaker protective cover installation structure provided by the utility model, the first connecting part includes a second connecting piece integrally formed on the open end, and a second through hole arranged on the second connecting piece for the fixing screw to pass through. By arranging a fixing column located below the second connecting hole on the middle seat, when the protective cover is closed to cover the installation groove, the second connecting piece is accommodated in the second connecting groove of the upper cover, and then the fixing screw is passed through the second connecting piece and the second connecting hole and is fastened to the fixing column, so that the second connecting part is firmly fixed in the second connecting groove. The fixing column plays a connecting, fixing and supporting role, and the second connecting part is fixed in the first connecting groove with the lead sealing screw, so that the fixed connection position between the protective cover and the upper cover is increased to two, the installation strength is higher, and the anti-loosening and anti-vibration effect is better. The two fixed connection positions are kept at a certain appropriate distance so that the protective cover can be installed more stably to ensure that the protective cover can still be reliably installed under the impact of the breaking test, and the installation stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for use in the specific implementation or the description of the prior art will be briefly introduced below.

[0021] Figure 1 A three-dimensional structural schematic diagram of a circuit breaker protective cover installation structure provided by the utility model;

[0022] Figure 2 A schematic diagram of the planar structure of the circuit breaker protective cover installation structure provided by the utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the local cross-section structure along line AA;

[0024] Figure 4 for Figure 2 Schematic diagram of the local cross-section structure along line BB;

[0025] Figure 5 It is a schematic diagram of the structure of the protective cover of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the upper cover of the utility model.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. middle seat; 2. upper cover; 3. mounting groove; 4. protective cover; 41. rotating end; 42. opening end; 43. first connecting part; 431. first connecting plate; 432. connecting boss; 433. accommodating groove; 44. second connecting part; 441. second connecting plate; 442. second through hole; 5. first connecting groove; 6. first fastening structure; 61. sealing screw; 62. nut column; 63. first connecting hole; 7. second connecting groove; 8. second fastening structure; 81. fixing screw; 82. fixing column; 83. second connecting hole; 9. buckle cover. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example

[0032] This embodiment provides Figure 1-6 A circuit breaker protective cover mounting structure is shown, which is used for measuring circuit breakers, and includes a middle seat 1 and an upper cover 2 and a mounting groove 3 adjacent to the middle seat 1. A protective cover 4 that can be opened or closed is rotatably provided at the opening of the mounting groove 3. A controller component is installed in the mounting groove 3. The protective cover 4 includes a rotating end 41 hinged to the middle seat 1 and an opening end 42 adjacent to the upper cover 2. The opening end 42 is fixedly connected to the upper cover 2 through a connecting structure, and the connecting structure includes:

[0033] The first connection assembly includes a first connection groove 5 provided on the side of the upper cover 2, a first connection portion 43 extending from the open end 42 and adapted to be accommodated in the first connection groove 5, and a first fastening structure 6 for fixing the first connection portion 43 in the first connection groove 5;

[0034] The second connecting component includes a second connecting groove 7 arranged on the side of the upper cover 2, a second connecting portion 44 extending at the open end 42 and suitable for being accommodated in the second connecting groove 7, and a second fastening structure 8 for fixing the second connecting portion 44 in the second connecting groove 7; the first connecting portion 43 and the second connecting portion 44 are respectively arranged on the open end 42 close to the left and right side edges of the protective cover 4.

[0035] In the above embodiment, by providing a first connection portion 43 and a second connection portion 44 on the open end 42 of the protective cover 4, and correspondingly providing a first connection groove 5 and a second connection groove 7 on the side of the upper cover 2, when the protective cover 4 is closed in the installation groove 3, the first connection portion 43 and the second connection portion 44 are just driven to be inserted into the first connection groove 5 and the second connection groove 7 respectively, and then the first connection portion 43 and the second connection portion 44 are fixedly installed in the first connection groove 5 and the second connection groove 7 respectively through the first fastening structure 6 and the second fastening structure 8, so that two fixed connections are played between the protective cover 4 and the upper cover 2, ensuring that the protective cover 4 is in a closed state and is not opened at will, and by reasonably designing the installation distance between the first connection portion 43 and the second connection portion 44, it is ensured that the force at the two installation positions of the protective cover is more balanced and stable, the installation structure strength of the protective cover 4 is enhanced, and the impact resistance is better, so that the protective cover 4 can well cope with the impact of the circuit breaker disconnection test, avoid the protective cover from being violently shaken or even opened by the impact, and improve the installation stability of the protective cover.

[0036] Combine the following Figure 2-6 The specific configuration of the first connecting portion and the first fastening structure is described in detail:

[0037] The first fastening structure 6 includes a first connecting hole 63 arranged in the first connecting groove 5 and passing through the upper cover 2, a nut column 62 embedded in the middle seat 1 and located below the first connecting hole 63, and a lead sealing screw 61 that passes through the first connecting part 43 and the second connecting hole 83 and is fastened in the nut column 62. It is further preferably arranged that the first connecting part 43 includes a first connecting piece 431 integrally extended and formed on the open end 42, and a connecting boss 432 arranged at the bottom of the first connecting piece 431, and a receiving groove 433 extending between the first connecting piece 431 and the connecting boss 432, the bottom end of the connecting boss 432 passes through a first through hole connected to the receiving groove 433, the connecting boss 432 is designed as a circular boss, and the receiving groove 433 is designed as a circular groove, so that the lead sealing screw 61 passes through the first through hole to fix the first connecting part 43 in the first connecting groove 5. With this structural arrangement, when the protective cover 4 is closed to cover the installation groove 3, the first connecting portion 43 is accommodated in the first connecting groove 5 of the upper cover 2, and then is fastened to the nut column 62 after the lead sealing screw 61 passes through the first connecting portion 43 and the first connecting hole 63. After the lead sealing screw 61 is fixed, the first connecting portion 43 is firmly locked in the locking groove, thereby achieving the locked installation of the protective cover 4. The lead sealing screw 61 plays a role of anti-loosening, anti-dropping and anti-tampering through the lead sealing method, thereby preventing the protective cover from being illegally opened and performing non-standard operations on the controller components in the installation groove, thereby ensuring safety.

[0038] The head of the lead-sealing screw 61 is accommodated in the receiving groove 433, and a limit clamping platform is provided to cooperate with and abut against the connecting boss 432. When the lead-sealing screw 61 is tightened, the limit clamping platform applies a tightening force to the first connecting portion 43 to fix it in the first connecting groove 5, and the installation is stable and reliable. Among them, when the protective cover 4 is closed in the installation groove 3, the first connecting piece 431 is kept flush with the upper cover 2, and the notch of the receiving groove 433 is opened in the first connecting piece 431, and a buckle cover 9 covering the lead-sealing screw 61 is installed at the notch, so that the lead-sealing screw 61 can be protected from external force, and the cooperation between the buckle cover 9 and the lead-sealing screw 61 can play a better anti-theft role.

[0039] Combine the following Figure 2-6 The specific configuration of the second connection portion and the second fastening structure is described in detail:

[0040] The second fastening structure 8 includes a second connecting hole 83 arranged in the second connecting groove 7 and passing through the upper cover 2, a fixing column 82 arranged on the middle seat 1 and located below the second connecting hole 83, and a fixing screw 81 that passes through the first connecting portion 43 and the second connecting hole 83 and is fastened in the fixing column 82. The fixing column 82 is provided with a threaded hole that cooperates with the fixing screw 81. It is further preferably arranged that the first connecting portion 43 includes a second connecting piece 441 that is integrally formed on the open end 42 and extends in the same direction as the first connecting piece 431, and a second through hole 442 arranged on the second connecting piece 441 for the fixing screw 81 to pass through, so that the second connecting piece 441 is fixed in the second connecting groove 7 when the fixing screw 81 is tightened. With this structural arrangement, when the protective cover 4 is closed to cover the mounting groove 3, the second connecting piece 441 is accommodated in the second connecting groove 7 of the upper cover 2, and then the fixing screw 81 passes through the second connecting piece 441 and the second connecting hole 83 and is fastened to the fixing column 82, thereby firmly fixing the second connecting portion 44 in the second connecting groove 7. The fixing column 82 plays a role of connection, fixing and support, and the lead sealing screw 61 fixes the second connecting portion 44 in the first connecting groove 5, thereby increasing the number of fixed connection positions between the protective cover 4 and the upper cover 2 to two, with higher installation strength and better anti-loosening and anti-vibration effects. Maintaining a certain appropriate distance between the two fixed connection positions can make the installation of the protective cover more stable, so as to ensure that the protective cover can still be reliably installed under the impact of the disconnection test, and the installation stability is good.

[0041] As a specific structural setting, refer to Figure 5 One end of the second connecting piece 441 is bent in an L shape and connected to the bottom side of the open end 42, and the other end is a circular end that is adapted to the shape and size of the second connecting groove 7. The second through hole 442 is arranged on the circular end of the second connecting piece 441. With this structural arrangement, the second connecting piece 441 with an L-shaped bending design can not only enhance its own structural strength, but also reduce the installation height of the second connecting piece 441 in the second connecting groove 7, so that more space can be reserved in the second connecting groove 7 to meet the installation requirements of the fixing screw 81, so that the fixing screw 81 can be accommodated in the second connecting groove 7 after installation, avoiding the fixing screw 81 from protruding from the surface of the upper cover, and the installation is more beautiful.

[0042] In this embodiment, the protective cover 4 is a transparent cover, and its left and right side edges are flush with the side walls of the middle seat 1. The distance between the first connecting portion 43 and the second connecting portion 44 is at least half of the length of the open end 42, so that the two fixed connection positions between the protective cover 4 and the upper cover 2 can be prevented from being too close. Since the area and length of the protective cover 4 are made larger, maintaining a suitable installation distance between the two fixed connection positions between the protective cover 4 and the upper cover 2 is conducive to improving the installation stability of the protective cover.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A circuit breaker protective cover mounting structure, comprising a middle seat (1), an upper cover (2) and a mounting groove (3) arranged adjacent to the middle seat (1), a protective cover (4) which can be opened or closed is rotatably arranged at the opening of the mounting groove (3), the protective cover (4) comprising a rotating end (41) hinged to the middle seat (1), and an opening end (42) arranged adjacent to the upper cover (2), the opening end (42) and the upper cover (2) being fixedly connected by a connecting structure, characterized in that: The connection structure comprises: A first connection assembly comprises a first connection groove (5) arranged on a side of the upper cover (2), a first connection portion (43) extending from the open end (42) and suitable for being received in the first connection groove (5), and a first fastening structure (6) for fixing the first connection portion (43) in the first connection groove (5); The second connecting component comprises a second connecting groove (7) arranged on the side of the upper cover (2), a second connecting portion (44) extending from the open end (42) and suitable for being accommodated in the second connecting groove (7), and a second fastening structure (8) for fixing the second connecting portion (44) in the second connecting groove (7); the first connecting portion (43) and the second connecting portion (44) are respectively arranged on the open end close to the left and right side edges of the protective cover (4).

2. A circuit breaker protective cover installation structure according to claim 1, characterized in that: The first fastening structure (6) comprises a first connecting hole (63) arranged in the first connecting groove (5) and penetrating the upper cover (2), a nut column (62) embedded in the middle seat (1) and located below the first connecting hole (63), and a lead sealing screw (61) passing through the first connecting portion (43) and the second connecting hole (83) and then fastened in the nut column (62).

3. A circuit breaker protective cover installation structure according to claim 2, characterized in that: The first connecting portion (43) comprises a first connecting piece (431) integrally extended and formed on the open end (42), a connecting boss (432) arranged at the bottom of the first connecting piece (431), and a receiving groove (433) extending between the first connecting piece (431) and the connecting boss (432), wherein a first through hole communicating with the receiving groove (433) is penetrated at the bottom end of the connecting boss (432), so that a lead sealing screw (61) passes through the first through hole to fix the first connecting portion (43) in the first connecting groove (5).

4. A circuit breaker protective cover installation structure according to claim 3, characterized in that: The head of the lead sealing screw (61) is accommodated in the accommodating groove (433), and is provided with a limiting clamping platform that cooperates and abuts against the connecting boss (432).

5. A circuit breaker protective cover installation structure according to claim 4, characterized in that: The first connecting piece (431) remains flush with the upper cover (2) when the protective cover (4) is closed in the mounting groove (3); a notch of the accommodating groove (433) is opened in the first connecting piece (431), and a buckle cover (9) covering the lead sealing screw (61) is installed at the notch.

6. A circuit breaker protective cover installation structure according to any one of claims 1 to 5, characterized in that: The second fastening structure (8) comprises a second connecting hole (83) arranged in the second connecting groove (7) and penetrating the upper cover (2), a fixing column (82) arranged on the middle seat (1) and located below the second connecting hole (83), and a fixing screw (81) passing through the first connecting portion (43) and the second connecting hole (83) and then fastened in the fixing column (82), and the fixing column (82) is provided with a threaded hole that cooperates with the fixing screw (81).

7. A circuit breaker protective cover installation structure according to claim 6, characterized in that: The first connecting portion (43) comprises a second connecting piece (441) integrally formed on the open end (42) and extending in the same direction as the first connecting piece (431), and a second through hole (442) provided on the second connecting piece (441) for the fixing screw (81) to pass through, so that when the fixing screw (81) is tightened, the second connecting piece (441) is fixed in the second connecting groove (7).

8. A circuit breaker protective cover mounting structure according to claim 7, characterized in that: One end of the second connecting piece (441) is bent in an L shape and connected to the bottom side of the open end (42), and the other end is a circular end that matches the shape and size of the second connecting groove (7). The fixing screw (81) is accommodated in the second connecting groove (7) after installation.

9. The circuit breaker protective cover installation structure according to claim 1, characterized in that: The left and right side edges of the protective cover (4) are flush with the side walls of the middle seat (1), and the distance between the first connecting portion (43) and the second connecting portion (44) is at least half of the length of the open end (42).

Images