Wiring terminal protective cover of UL circuit breaker

Abstract

The utility model discloses a wiring terminal protection cover of a UL circuit breaker, and relates to the technical field of circuit breakers. A wiring terminal protection cover of a UL circuit breaker comprises a circuit breaker shell and two wiring terminal protection covers, the two wiring terminal protection covers are fixedly installed on the two sides of the circuit breaker shell respectively, each wiring terminal protection cover comprises a cover plate, a side plate, three installation fixing small cylinders and an installation fixing small boss, the side plate is fixedly connected to one side of the cover plate, and the side plate is fixedly connected to the other side of the cover plate. The protective cover is reasonable in structural design, the cover plate and the side plates are tightly combined, the wiring terminal is tightly covered, impact of external force is effectively blocked, meanwhile, the cover plate can be supported through the supporting triangular plates in interference fit with the breaking grooves, the breaking effect is good, and the service life of the wiring terminal is prolonged. The breaking groove is prevented from being broken unnecessarily due to external force, so that the overall stability and firmness of the protective cover are enhanced, and reliable protection can be provided for the wiring terminal continuously.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, especially a wiring terminal protection cover of UL circuit breaker. BACKGROUND

[0002] In electrical systems, UL circuit breakers as important protection components are widely used in various circuits and devices to prevent electrical faults such as overload and short circuit from causing damage to the system. Wiring terminals, as the key part of the connection between UL circuit breakers and circuits, are crucial to their safety and reliability.

[0003] In daily use, the protection cover needs to withstand certain external impact. Once the protection cover loses its protective effect, the wiring terminal will be exposed and face potential safety hazards such as short circuit and electric leakage. Traditional wiring terminal protection covers are usually designed for specific UL circuit breakers. Single-pole, two-pole, and three-pole circuit breakers correspond to different specifications of protection covers, which means that electrical engineers or maintenance personnel need to prepare multiple types of protection covers according to the number of poles of the circuit breaker during actual installation. If the required protection cover does not match the inventory, it will cause installation delays, increase construction costs and time costs. Therefore, we propose a wiring terminal protection cover for UL circuit breakers. SUMMARY

[0004] The utility model aims at at least solves one of prior art problems, provides a wiring terminal protection cover of UL circuit breaker, can solve in daily use, the protection cover needs to withstand certain external impact, the protection cover loses the protection effect once, and the wiring terminal will be exposed and face potential safety hazards such as short circuit and electric leakage. Traditional wiring terminal protection covers are usually designed for specific UL circuit breakers. Single-pole, two-pole, and three-pole circuit breakers correspond to different specifications of protection covers, which means that electrical engineers or maintenance personnel need to prepare multiple types of protection covers according to the number of poles of the circuit breaker during actual installation. If the required protection cover does not match the inventory, it will cause installation delays, increase construction costs and time costs.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a wiring terminal protection cover of UL circuit breaker, comprising:

[0006] The circuit breaker housing and the two wiring terminal protection covers are fixedly installed on both sides of the circuit breaker housing.

[0007] The terminal block protective cover includes a cover plate, a side plate, three mounting and fixing small cylinders, and mounting and fixing small bosses. The side plate is fixedly connected to one side of the cover plate, the three mounting and fixing small cylinders are all fixedly connected to the bottom of the cover plate, and the mounting and fixing small bosses are fixedly connected to the corresponding mounting and fixing small cylinders. The cover plate has two break-off grooves, and the inner walls of the two break-off grooves are provided with mounting slide grooves on both sides. The interior of the two break-off grooves is slidably connected to a supporting triangular plate, and the two sides of the two supporting triangular plates are fixedly connected to a mounting slide plate. All four mounting slide plates are slidably connected to the interior of the corresponding mounting slide grooves.

[0008] Preferably, the terminal protective cover further includes a first mounting plate, multiple second mounting plates, a third mounting plate, and multiple mounting bosses. The multiple mounting bosses are all fixedly connected to the side plate, the first mounting plate is fixedly connected to the inside of the side plate, and the multiple second and third mounting plates are all fixedly connected to the bottom of the cover plate.

[0009] Preferably, the mounting and fixing small cylinder includes multiple mounting insertion positioning columns, all of which are fixedly connected to the bottom of the cover plate, and multiple mounting spring grooves are provided on the mounting and fixing small cylinder.

[0010] Preferably, the top of the cover plate has multiple screw holes that communicate with the interior of the mounting and fixing small cylinder.

[0011] Preferably, the circuit breaker housing is internally fixedly connected with wiring terminals and circuit breaker screw covers.

[0012] Preferably, the circuit breaker screw cover is located outside the mounting and fixing cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The terminal protection cover of this UL circuit breaker has a reasonable structural design. The cover plate and side plate are tightly combined to cover the terminal tightly and effectively block external impact. At the same time, the support triangle plate with interference fit in the break groove can support the cover plate and prevent the break groove from being broken due to external force. This enhances the overall stability and firmness of the protective cover and can continuously provide reliable protection for the terminal. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the terminal block structure of this utility model;

[0018] Figure 3 It is the installation fixed small cylindrical structure schematic view of the utility model;

[0019] Figure 4 It is the installation fixed small cylindrical structure schematic view of the utility model; Figure 3 It is the enlarged structure schematic view of A place in the middle;

[0020] Figure 5 It is the cover plate structure schematic view of the utility model;

[0021] Figure 6 It is the wiring terminal protection cover broken structure schematic view of the utility model.

[0022] The drawings show that the utility model discloses a circuit breaker shell, wiring terminal protection cover, circuit breaker screw cover, wiring terminal, cover plate, side plate, screw hole, installation boss, broken groove, installation fixed plate one, installation spring groove, installation insertion positioning column, installation fixed plate two, installation fixed plate three, installation fixed small boss, installation fixed small cylinder, installation sliding groove, support triangular plate and installation sliding plate. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] In the description of the utility model, it is understood that the position description such as the position or location relationship indicated by up, down, front, back, left, right and the like is based on the position or location relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific position, a specific position and operation, so it cannot be understood as the limitation of the utility model.

[0025] In the description of the utility model, greater than, less than, more than and the like are not included in the number, and above, below and the like are included in the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0026] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation and connection should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0027] Please see Figures 1-6 This utility model provides a technical solution: a terminal protection cover for a UL circuit breaker, comprising:

[0028] The circuit breaker housing 1 and two terminal protection covers 2 are fixedly installed on both sides of the circuit breaker housing 1.

[0029] The terminal protective cover 2 includes a cover plate 5, a side plate 6, three mounting and fixing small cylinders 16, and mounting and fixing small protrusions 15. The side plate 6 is fixedly connected to one side of the cover plate 5. The three mounting and fixing small cylinders 16 are all fixedly connected to the bottom of the cover plate 5. The mounting and fixing small protrusions 15 are fixedly connected to the corresponding mounting and fixing small cylinders 16. The cover plate 5 has two break grooves 9. The inner walls of the two break grooves 9 are provided with mounting slide grooves 17. The interior of the two break grooves 9 is slidably connected to a supporting triangular plate 18. The two sides of the two supporting triangular plates 18 are fixedly connected to mounting slide plates 19. The four mounting slide plates 19 are slidably connected to the interior of the corresponding mounting slide grooves 17.

[0030] The terminal protection cover 2 also includes a first mounting plate 10, multiple second mounting plates 13, a third mounting plate 14, and multiple mounting bosses 8. The multiple mounting bosses 8 are all fixedly connected to the side plate 6. The first mounting plate 10 is fixedly connected to the inside of the side plate 6. The multiple second mounting plates 13 and the third mounting plates 14 are all fixedly connected to the bottom of the cover plate 5.

[0031] The mounting and fixing small cylinder 16 includes multiple mounting insertion positioning pins 12, which are all fixedly connected to the bottom of the cover plate 5. Multiple mounting spring grooves 11 are provided on the mounting and fixing small cylinder 16. Multiple screw holes 7 communicating with the inside of the mounting and fixing small cylinder 16 are provided on the top of the cover plate 5. The circuit breaker housing 1 is fixedly connected to the inside of the circuit breaker housing 1, and the circuit breaker screw cover 3 is located outside the mounting and fixing small cylinder 16.

[0032] Furthermore, when using this device, when installing the terminal protection cover 2 onto the circuit breaker housing 1, align the mounting and fixing small cylinder 16 with the corresponding position on the circuit breaker housing 1, press the cover plate 5, and insert the mounting insertion positioning post 12 into the corresponding position to achieve initial positioning. Then, use a screwdriver to screw the screw into the screw hole 7 to further fix the protection cover. At the same time, the mounting fixing plate 10, multiple mounting fixing plates 13, and mounting fixing plate 14 on the side plate 6 work together to fit the internal structure of the circuit breaker housing 1, enhancing the stability of the installation.

[0033] When it is necessary to adjust according to different short-circuiters, the support triangular plate 18 can be pushed to make the installation sliding plates 19 on both sides thereof slide in the installation sliding grooves 17, so that the support triangular plate 18 is slid out of the breaking groove 9, thereby facilitating the breaking of the cover plate 5 from the breaking groove 9, and further facilitating the use of different circuit breakers.

[0034] The protective cover structure is rationally designed, and the cover plate 5 and the side plate 6 are closely combined to tightly cover the wiring terminal and effectively block external force impact. Meanwhile, the support triangular plate 18 in interference fit in the breaking groove 9 can support the cover plate 5, so as to avoid unnecessary breaking of the breaking groove 9 due to external force, thereby enhancing the stability and firmness of the whole protective cover and continuously providing reliable protection for the wiring terminal.

[0035] Structural description: Circuit breaker shell 1: as the main frame, it provides the installation basis for the wiring terminal and the wiring terminal protective cover, and internally fixes the wiring terminal and the circuit breaker screw cover, and simultaneously defines the circuit working space;

[0036] Wiring terminal protective cover 2: installed on both sides of the circuit breaker shell, it protects the wiring terminal from being affected by external force impact, dust and the like, and guarantees the normal work and safe use of the wiring terminal;

[0037] Circuit breaker screw cover 3: fixed in the circuit breaker shell and located outside the installation and fixing small cylinder, it protects the screw for fixing the wiring terminal protective cover from loosening or damage due to external factors;

[0038] Wiring terminal 4: fixed in the circuit breaker shell, it is used for connecting circuit wires to realize the connection and disconnection of the circuit, and is a key component for circuit transmission and control;

[0039] Cover plate 5: the main covering component of the wiring terminal protective cover, a screw hole is formed in the top thereof for fixing the protective cover, the bottom thereof is connected with the installation and fixing small cylinder and the installation and fixing plate, and the breaking groove and the related structures on the surface thereof can be adjusted as needed to adapt to different circuit breakers;

[0040] Side plate 6: fixed on one side of the cover plate, it cooperates with the cover plate to form a protective space of the protective cover, and the installation boss and the installation and fixing plate one are arranged on the side plate to cooperate with the circuit breaker shell for installation, thereby enhancing the installation stability of the protective cover;

[0041] Screw hole 7: formed in the top of the cover plate and in communication with the inside of the installation and fixing small cylinder, it is used for screwing in a screwdriver to screw the wiring terminal protective cover firmly on the circuit breaker shell;

[0042] Installation boss 8: a plurality of installation bosses are fixed on the side plate, and in the installation process, the installation bosses cooperate with the corresponding structures on the circuit breaker shell to assist in positioning and fixing the wiring terminal protective cover, thereby improving the installation precision and stability;

[0043] Breaking slot 9: set in the cover plate, the inside can be slidably connected support triangular plate, when need to adjust the protective cover to adapt to different circuit breaker, can be broken through the breaking slot cover plate, flexible adjustment is realized;

[0044] Mounting insertion positioning column 12: a plurality of mounting insertion positioning columns are fixed at the bottom of the cover plate, which are aligned with the corresponding positions on the circuit breaker shell during installation, and the positioning columns are inserted by pressing the cover plate to realize the preliminary positioning of the wiring terminal protection cover on the circuit breaker shell, facilitating subsequent fixing operation;

[0045] Mounting fixed small boss 15: fixed on the mounting fixed small cylinder, which may cooperate with the corresponding structure on the circuit breaker shell during installation to further assist in positioning and fixing the wiring terminal protection cover and optimize the installation effect;

[0046] Mounting fixed small cylinder 16: fixed at the bottom of the cover plate, which realizes preliminary positioning through the mounting insertion positioning column, and the top communicates with the screw hole for screw fixing, and the overall structure provides important support and positioning function for the installation of the wiring terminal protection cover;

[0047] Mounting sliding groove 17: set in the inner wall of the breaking slot, which is used for the sliding of the mounting sliding plate on both sides of the support triangular plate to realize the flexible movement of the support triangular plate in the breaking slot and provide conditions for the breaking adjustment of the cover plate;

[0048] Support triangular plate 18: slidably connected in the breaking slot, the mounting sliding plate is fixed on both sides, which can be slid out of the breaking slot as needed, and after the support triangular plate is slid out, it can be supported on the relevant part of the circuit breaker or provide a fulcrum for the breaking cover plate, so as to facilitate the adjustment of the protective cover to adapt to different circuit breakers.

[0049] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art in the technical field without departing from the purpose of the utility model.

Claims

1. A terminal protection cover for a UL circuit breaker, characterized in that, include: The circuit breaker housing (1) and two terminal protection covers (2) are fixedly installed on both sides of the circuit breaker housing (1); The terminal protection cover (2) includes a cover plate (5), a side plate (6), three mounting and fixing small cylinders (16) and mounting and fixing small bosses (15). The side plate (6) is fixedly connected to one side of the cover plate (5), and the three mounting and fixing small cylinders (16) are all fixedly connected to the bottom of the cover plate (5). Among them, the mounting and fixing small boss (15) is fixedly connected to the corresponding mounting and fixing small cylinder (16), and two break grooves (9) are opened on the cover plate (5). The inner walls of the two break grooves (9) are provided with mounting slide grooves (17). Among them, the interior of each of the two break grooves (9) is slidably connected to a supporting triangular plate (18), and the two sides of the supporting triangular plate (18) are fixedly connected to a mounting slide plate (19). All four mounting slide plates (19) are slidably connected to the interior of the corresponding mounting groove (17).

2. The terminal protection cover for a UL circuit breaker according to claim 1, characterized in that: The terminal protective cover (2) also includes a first mounting plate (10), multiple second mounting plates (13), a third mounting plate (14), and multiple mounting bosses (8), all of which are fixedly connected to the side plate (6); Among them, the first mounting plate (10) is fixedly connected to the inside of the side plate (6), and multiple second mounting plates (13) and third mounting plates (14) are fixedly connected to the bottom of the cover plate (5).

3. The terminal protection cover for a UL circuit breaker according to claim 1, characterized in that: The mounting and fixing small cylinder (16) includes multiple mounting insertion positioning columns (12), which are all fixedly connected to the bottom of the cover plate (5). Multiple mounting spring grooves (11) are provided on the mounting and fixing small cylinder (16).

4. The terminal protection cover for a UL circuit breaker according to claim 1, characterized in that: The top of the cover plate (5) has multiple screw holes (7) that communicate with the interior of the mounting and fixing small cylinder (16).

5. The terminal protection cover for a UL circuit breaker according to claim 1, characterized in that: The circuit breaker housing (1) is fixedly connected to the wiring terminal (4) and the circuit breaker screw cover (3).

6. A terminal protection cover for a UL circuit breaker according to claim 5, characterized in that: The circuit breaker screw cover (3) is located outside the mounting and fixing cylinder (16).

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