External mounting bracket for turn-off device

Abstract

The utility model provides an external mounting bracket for a turn-off device, which comprises a support body fixed on a photovoltaic bracket, and the turn-off device is detachably mounted in the support body; a plurality of pairs of limiting clamping grooves are formed in the support body at intervals in the linear direction, a plurality of sets of clamping blocks matched with the limiting clamping grooves are arranged on the outer wall of the shutoff device, one end of each limiting clamping groove is closed, and the other end of each limiting clamping groove is provided with an opening allowing the corresponding clamping block to enter and exit. An elastic stop block is arranged at one end of the support body, and the elastic stop block is configured to limit the shut-off device when the shut-off device is installed in place so as to prevent the clamping block from being separated from the limiting clamping groove; the external mounting bracket for the turn-off device provided by the utility model overcomes the defect that the existing turn-off device is inconvenient to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an external mounting bracket for a circuit breaker. Background Technology

[0002] Grid-connected photovoltaic (PV) power generation technology is receiving increasing attention due to its renewable and clean nature, and is also an important direction for future energy development. Currently, the main forms of PV grid-connected power generation technology include building solar grid-connected power generation systems on factory rooftops to achieve self-sufficiency. To address safety hazards such as electric arcs and fires caused by the high DC voltage generated by PV arrays, circuit breakers are typically installed on the PV strings. These circuit breakers can promptly shut down faulty strings in the event of an accident, ensuring that the voltage on the DC cable meets safety regulations.

[0003] The installation method of the switchgear is crucial. For example, CN219145332U discloses a convenient photovoltaic module switchgear fixing device. This device is connected to the photovoltaic module switchgear via a fixed connection using screws. During installation, the fixing device can be first secured to the switchgear using screws, making them a single unit. Then, it is fixed to the solar panel bracket using the elastic fixing part on the fixing device. However, in this structure, because the switchgear and fixing device require screws for fastening, disassembling and assembling the switchgear is very inconvenient, time-consuming, and labor-intensive. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of this, the present invention provides an external mounting bracket for a circuit breaker, overcoming the shortcomings of the existing circuit breaker which is inconvenient to install and remove.

[0006] (II) Technical Solution

[0007] To solve the aforementioned technical problem, this utility model provides an external mounting bracket for a circuit breaker, including a support body fixed on a photovoltaic bracket, with a circuit breaker detachably mounted inside the support body; the support body has multiple pairs of limiting slots spaced along a straight line, and the outer wall of the circuit breaker has multiple sets of locking blocks adapted to the limiting slots, one end of each limiting slot being closed and the other end having an opening for the locking blocks to enter and exit; one end of the support body has an elastic stop block configured to limit the circuit breaker when it is installed in place, preventing the locking blocks from dislodging from the limiting slots.

[0008] In some embodiments, the support body is provided with side blocks symmetrically and spaced apart on both sides, and a space for accommodating the shut-off device is formed between the two side blocks, and the limiting slot is provided on the side blocks.

[0009] In some embodiments, a first inclined guide wall is provided on the side of the opening opposite to the limiting slot, the first inclined guide wall being configured to guide the card block during the installation of the shut-off device, so that it slides smoothly into the limiting slot.

[0010] In some embodiments, a second inclined baffle is provided at the upper end of the elastic block; when the shut-off device is installed, the shut-off device causes the elastic block to deform by pressing down the second inclined baffle, thereby avoiding the shut-off device.

[0011] In some embodiments, the inner end of the elastic stop is provided with a chamfer; when the shut-off device is pushed into place, the chamfer allows the elastic stop to rebound smoothly.

[0012] In some embodiments, one end of the elastic stop is integrally connected to the support body, and a U-shaped groove is formed on the outer periphery of the elastic stop to facilitate its deformation.

[0013] In some embodiments, the support body is provided with an unlocking tool termination strip located outside the resilient stop, the unlocking tool termination strip being configured to restrict the unlocking tool from sliding out of the support body when the shut-off device is removed.

[0014] In some embodiments, the back of the support body is provided with parallel and spaced glue-blocking strips, and a glue-applying space is formed between the two glue-blocking strips. The glue-applying space is filled with glue. The support body is glued and fixed to the photovoltaic bracket by the glue.

[0015] In some embodiments, support feet are provided at the four corners of the adhesive application space, and the height of the adhesive after application is consistent with the height of the support feet.

[0016] In some embodiments, the outer wall of the shut-off device is provided with a protrusion structure, and the support body is provided with a relief groove for avoiding the protrusion structure.

[0017] In some embodiments,

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0020] 1) This external mounting bracket for the circuit breaker innovatively adopts a combination of a limiting slot and a locking block to replace the traditional screw fixing. During installation, the locking block of the circuit breaker only needs to be aligned with the opening of the limiting slot and slid in. The elastic stop will automatically limit the locking block when the circuit breaker is installed in place, preventing it from falling out. During disassembly, the circuit breaker can be easily slid out by overcoming the limiting force of the elastic stop. This design completely changes the time-consuming and labor-intensive situation of disassembly and assembly under the previous screw fastening method, realizing simple and quick installation and disassembly of the circuit breaker, greatly improving the efficiency of disassembly and assembly, and significantly saving labor and time costs.

[0021] 2) Parallel and spaced adhesive strips on the back of the support body form an adhesive application space. Adhesive is applied in this space to stick and fix the support body to the photovoltaic bracket. This adhesive fixing method is not only convenient and quick to install, but also ensures that the connection between the support body and the photovoltaic bracket is firm and reliable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of an external mounting bracket for a circuit breaker and the connection of the circuit breaker according to this utility model.

[0024] Figure 2 This is an exploded view of an external mounting bracket for a circuit breaker and a circuit breaker according to this utility model.

[0025] Figure 3 This is a perspective view of an external mounting bracket for a circuit breaker according to this utility model.

[0026] Figure 4 This is a perspective view of an external mounting bracket for a circuit breaker according to this utility model;

[0027] Figure 5 This is a perspective view of the back of an external mounting bracket for a circuit breaker according to this utility model.

[0028] Figure 6 This is a cross-sectional view of an external mounting bracket for a circuit breaker according to this utility model;

[0029] The component names corresponding to the various reference numerals in the figure are as follows: 1. Support body; 101. Side stop block; 102. Unlocking tool termination strip; 103. Glue-blocking strip; 104. Support foot; 105. Avoidance groove; 2. Shut-off device; 201. Locking block; 202. Protrusion structure; 3. Limiting slot; 301. Opening; 302. First inclined guide wall; 4. Elastic stop block; 401. Second inclined stop wall; 402. Chamfer; 403. U-shaped groove. Detailed Implementation

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0031] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0035] Combination Figures 1-6 As shown, this utility model provides an external mounting bracket for a circuit breaker, including a support body 1 fixed on a photovoltaic bracket, and a circuit breaker 2 detachably installed inside the support body 1. Multiple pairs of limiting slots 3 are spaced apart along a straight line (length direction) on the support body 1. Each pair of limiting slots 3 is symmetrically arranged on both sides of the support body 1. In this example, for structural simplicity, there are two pairs of limiting slots 3. Multiple sets of locking blocks 201 adapted to the limiting slots 3 are provided on the outer wall of the circuit breaker 2. There are two sets of locking blocks 201. One end of the limiting slot 3 is closed, and the other end has an opening 301 for the locking blocks 201 to enter and exit. One end of the support body 1 is provided with an elastic stop block 4, with the opening 301 facing the elastic stop block 4. The elastic stop block 4 is located at the middle position of one end of the support body 1. The elastic stop block 4 is configured to limit the circuit breaker 2 when it is installed in place, preventing the locking blocks 201 from dislodging from the limiting slots 3.

[0036] During installation, the latch 201 of the circuit breaker 2 is aligned with the opening 301 of the limiting slot 3 and slid in. When it slides in, the circuit breaker 2 will press down on the elastic stop 4 to deform it. When the circuit breaker is installed in place, the elastic stop 4 can automatically rebound and abut against the end of the circuit breaker 2, thereby limiting the circuit breaker 2 and preventing the latch 201 from coming out of the limiting slot 3. During disassembly, the circuit breaker 2 can be easily slid out by simply pressing down on the elastic stop 4. This design completely changes the time-consuming and laborious disassembly and assembly situation under the previous screw fastening method, realizes the simple and quick installation and disassembly of the circuit breaker, greatly improves the efficiency of the disassembly and assembly of the circuit breaker, and significantly saves labor and time costs.

[0037] In some embodiments, such as Figure 2 and Figure 4 As shown, the support body 1 has symmetrically spaced side blocks 101 on both sides, and a space for accommodating the shut-off device 2 is formed between the two side blocks 101. The limiting slot 3 is provided on the side block 101. The support body 1 and the side blocks 101 are integral plastic parts.

[0038] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, a first inclined guide wall 302 is provided at the opening 301 on the side opposite to the limiting slot 3. The first inclined guide wall 302 is configured to guide the locking block 201 during the installation of the shut-off device 2, allowing the locking block to slide smoothly into the limiting slot 3. This structure, with the first inclined guide wall, can accurately guide the locking block during the installation of the shut-off device, allowing the locking block to slide smoothly into the limiting slot, further improving the convenience and accuracy of installation, and solving problems such as alignment difficulties that may occur during installation.

[0039] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, a second inclined baffle 401 is provided at the upper end of the elastic block 4; when installing the circuit breaker 2, the circuit breaker 2 causes the elastic block 4 to deform by pressing down on the second inclined baffle 401, thereby avoiding the circuit breaker 2. This structure, with the second inclined baffle 401, facilitates the deformation of the elastic block 4, making it easier to install the circuit breaker smoothly and requiring less effort.

[0040] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, the inner end of the elastic stop 4 is provided with a chamfer 402; when the shut-off device 2 is pushed into place, the chamfer 402 allows the elastic stop 4 to rebound smoothly. In this structure, the addition of the chamfer 402 facilitates the smooth rebound of the elastic stop 4 when the shut-off device is pushed into place, ensuring the reliability of the structure.

[0041] In some embodiments, such as Figure 2 , Figure 4 and Figure 6 As shown, one end of the elastic stop 4 is integrally connected to the support body 1. The elastic stop 4 and the support body 1 are a single-piece plastic component. A U-shaped groove 403 is formed on the outer periphery of the elastic stop 4 to facilitate its deformation, giving the elastic stop 4 a certain elastic deformation capability. This structure, with one end of the elastic stop integrally connected to the support body and a U-shaped groove formed on its outer periphery to facilitate deformation, ensures the structural stability of the elastic stop and gives it good elastic deformation capability, ensuring that the circuit breaker is stable and reliable after installation, while not hindering disassembly operations.

[0042] In some embodiments, such as Figure 4 and Figure 6 As shown, the support body 1 has an unlocking tool termination strip 102 located on the outside of the elastic stop 4. The unlocking tool termination strip 102 is a raised strip-shaped structure, configured to restrict the unlocking tool from sliding out of the support body 1 when disassembling the shut-off device 2. In this structure, to facilitate pressing down on the elastic stop 4 during disassembly, an unlocking tool can be used to press down on the elastic stop 4. The unlocking tool can be a pressure plate or a pressure rod, etc. To prevent the unlocking tool from accidentally damaging the photovoltaic module when pressing the elastic stop 4, in this embodiment, the unlocking tool termination strip 102 is provided to limit the unlocking tool, restricting it from sliding out of the support body 1, thereby preventing the unlocking tool from accidentally damaging the photovoltaic module.

[0043] In some embodiments, such as Figure 5As shown, parallel and spaced adhesive-blocking strips 103 are arranged on the back of the support body 1, forming an adhesive application space between two adhesive-blocking strips 103. Adhesive is applied into the adhesive application space. The support body 1 is glued and fixed to the photovoltaic bracket by adhesive. This structure, with the addition of adhesive-blocking strips, can prevent adhesive from overflowing onto the switch housing when applying adhesive or pressing to adhere the support body 1. In addition, the adhesive fixing method not only makes installation convenient and quick, but also ensures a firm and reliable connection between the support body and the photovoltaic bracket.

[0044] In some embodiments, such as Figure 5 As shown, support feet 104 are provided at the four corners of the glue application space. After the glue is applied, the height of the glue is consistent with the height of the support feet 104, thereby ensuring the thickness of the glue.

[0045] In some embodiments, such as Figure 2 and Figure 3 As shown, a protrusion structure 202 is provided on the outer wall of the circuit breaker 2, and a relief groove 105 is provided on the support body 1 to avoid the protrusion structure 202. With this structure, the relief groove 105 can avoid the protrusion structure 202 on the back shell of the circuit breaker, thereby controlling the overall height after installation; in actual design, the presence, quantity, and shape of the relief groove 105 can be adjusted according to the presence, quantity, and shape of the protrusion structure 202.

[0046] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0047] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An external mounting bracket for a circuit breaker, characterized in that: The device includes a support body (1) fixed on a photovoltaic bracket, and a circuit breaker (2) is detachably installed inside the support body (1). The support body (1) is provided with multiple pairs of limiting slots (3) spaced along a straight line. The outer wall of the circuit breaker (2) is provided with multiple sets of locking blocks (201) adapted to the limiting slots (3). One end of the limiting slot (3) is closed and the other end is provided with an opening (301) for the locking blocks (201) to enter and exit. One end of the support body (1) is provided with an elastic stop (4). The elastic stop (4) is configured to limit the circuit breaker (2) when it is installed in place, so as to prevent the locking blocks (201) from coming out of the limiting slots (3).

2. The off-circuit breaker external mounting bracket of claim 1, wherein: The support body (1) has symmetrical and spaced side blocks (101) on both sides, and a space for accommodating the shut-off device (2) is formed between the two side blocks (101). The limiting slot (3) is provided on the side block (101).

3. The off-circuit branch-mounted mounting bracket of claim 1, wherein: The opening (301) is provided with a first inclined guide wall (302) on the side opposite to the limiting slot (3). The first inclined guide wall (302) is configured to guide the card block (201) when the shut-off device (2) is installed, so that it can slide smoothly into the limiting slot (3).

4. The off-circuit branch-mounted mounting bracket of claim 1, wherein: The upper end of the elastic block (4) is provided with a second inclined baffle (401); when the shut-off device (2) is installed, the shut-off device (2) causes the elastic block (4) to deform by pressing down the second inclined baffle (401), thereby avoiding the shut-off device (2).

5. The off-circuit branch mounted bracket of claim 1, wherein: The inner end of the elastic stop (4) is provided with a chamfer (402); when the shut-off device (2) is pushed into place, the chamfer (402) can make the elastic stop (4) rebound smoothly.

6. The off-circuit mount bracket of claim 1, wherein: One end of the elastic stop (4) is integrally connected to the support body (1), and a U-shaped groove (403) is formed on the outer periphery of the elastic stop (4) to facilitate its deformation.

7. The off-circuit branch mounted bracket of claim 1, wherein: The support body (1) is provided with an unlocking tool termination strip (102) on the outside of the elastic stop (4), the unlocking tool termination strip (102) being configured to restrict the unlocking tool from sliding out of the support body (1) when the shut-off device (2) is removed.

8. The off-circuit mount bracket of claim 1, wherein: The back of the support body (1) is provided with parallel and spaced glue-blocking strips (103), and a glue-applying space is formed between the two glue-blocking strips (103). The glue-applying space is filled with glue. The support body (1) is glued and fixed to the photovoltaic bracket by the glue.

9. The off-circuit mount bracket of claim 8, wherein: Support feet (104) are provided at the four corners of the adhesive application space. After the adhesive is applied, the height of the adhesive is consistent with the height of the support feet (104).

10. The off-circuit mount bracket of claim 2, wherein: The outer wall of the shut-off device (2) is provided with a protrusion structure (202), and the support body (1) is provided with a relief groove (105) for avoiding the protrusion structure (202).

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