Switch insulation protection structure and circuit breaker thereof

Abstract

The utility model relates to a switch insulation protection structure and a circuit breaker thereof. The switch insulation protection structure comprises an insulation base, a first insulation protection plate and a second insulation protection plate. The insulating base is used for being connected with a base of a switch, and a plurality of line bank mounting holes are formed in the insulating base; when the line bank is L-shaped, the horizontal section of the line bank passes through the line bank mounting hole, and the vertical section of the line bank extends out between the first insulation protection plate and the insulation base; a protection plate mounting groove is formed in one side, far away from the base, of the insulating base; the plurality of line bank mounting holes are respectively positioned in an area divided by the protection plate mounting groove; when the line bank is a horizontal line bank, the second insulation protection plate is inserted into the protection plate installation groove. According to the switch insulation protection structure, the universality of the insulation base in horizontal wiring and vertical wiring is achieved, only the first insulation protection plate and the second insulation protection plate need to be replaced and used, the application range of the switch insulation protection structure to a connection mode is widened, and the electrical insulation performance is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage device technology, and in particular to a switch insulation protection structure and its circuit breaker. Background Technology

[0002] In photovoltaic and energy storage power generation systems and AC / DC power distribution systems, with the continuous increase in system voltage and the continuous optimization of costs, new demands have been placed on the installation, wiring methods, and insulation performance of switching devices. The installation and wiring methods of conventional switching devices on the market are relatively simple, and the insulation protection structure can only provide spaced protection between the switching device as a whole and the mounting body, with weak protection for the incoming and outgoing line bars.

[0003] There are two wiring methods for switching devices: horizontal wiring and vertical direct wiring. Horizontal wiring uses horizontal terminal blocks, while vertical direct wiring uses L-shaped terminal blocks. When connecting the switch to the insulation protection structure, since the insulation protection structure is only suitable for one wiring method, it is necessary to add copper busbars for transition or other conversion methods, which results in high cost for connecting the switch to the insulation protection structure and poor heat dissipation of the switching device after installation. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art by providing a switch insulation protection structure and its circuit breaker, thereby broadening the applicable wiring and installation methods of the switch insulation protection structure and improving its electrical insulation performance.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A switch insulation protection structure, comprising:

[0007] An insulating base is provided for connection with the base of the switch. The insulating base is provided with multiple terminal block mounting holes, through which the terminal blocks of the switch can be connected to external wires. Each terminal block mounting hole corresponds to a terminal block.

[0008] The first insulating protective plate, when the terminal block is an L-shaped terminal block, is connected to the side of the insulating base away from the base. The horizontal section of the terminal block passes through the terminal block mounting hole, and the vertical section of the terminal block extends from between the first insulating protective plate and the insulating base.

[0009] The second insulating protective plate has a protective plate mounting groove on the side of the insulating base away from the base. The protective plate mounting groove is a cross-shaped groove, and the multiple terminal block mounting holes are respectively located in an area divided by the protective plate mounting groove. The shape of the second insulating protective plate is adapted to the shape of the protective plate mounting groove. When the terminal block is a horizontal terminal block, the second insulating protective plate is inserted into the protective plate mounting groove.

[0010] In one embodiment, the insulating base is provided with a plurality of terminal block limiting grooves, each corresponding to a terminal block. When the terminal block is an L-shaped terminal block, the horizontal section of the terminal block passes through the terminal block mounting hole, and the vertical section of the terminal block passes through the terminal block limiting groove and extends out of the insulating base.

[0011] In one embodiment, the switch insulation protection structure further includes multiple terminal block fixing members. The vertical section of the terminal block is provided with a first terminal block fixing hole, and the bottom wall of the terminal block limiting groove is provided with a second terminal block fixing hole. When the terminal block is an L-shaped terminal block, the terminal block fixing member passes through the first terminal block fixing hole and is inserted into the second terminal block fixing hole.

[0012] In one embodiment, the switch insulation protection structure further includes a switch mounting plate, the side of the insulating base away from the base is a first side, the second side of the insulating base is adjacent to the first side, and the switch mounting plate is disposed on the second side of the insulating base and connected to the base.

[0013] In one embodiment, the switch mounting plate is provided with a first folding portion and a second folding portion. The first folding portion and the second folding portion are respectively bent toward the switch mounting plate away from the insulating base. The first folding portion is parallel to the first side of the insulating base, and the second folding portion is perpendicular to the first side.

[0014] When the terminal block is an L-shaped terminal block, the first folding mounting part is connected to the wall;

[0015] When the terminal block is a horizontal terminal block, the second folding mounting part is connected to the wall.

[0016] In one embodiment, the switch mounting plate is provided with a third folding portion and a fourth folding portion. The third folding portion and the fourth folding portion are bent toward the switch mounting plate toward the insulating base, and are both parallel to the first side. The second side of the insulating base is provided with a mounting plate connecting groove. The mounting plate connecting groove has an opening facing the first side. The third folding portion extends into the mounting plate connecting groove and is connected to the side wall of the mounting plate connecting groove. The fourth folding portion is connected to the base.

[0017] In one embodiment, the second side of the insulating base is provided with a snap-fit ​​protrusion, and the switch mounting plate is provided with a snap-fit ​​hole, into which the snap-fit ​​protrusion is inserted.

[0018] In one embodiment, the switch insulation protection structure further includes a second protective plate fixing member, a third protective plate fixing hole is provided at the center of the second insulating protective plate, and a fourth protective plate fixing hole is provided at the center of the bottom wall of the protective plate mounting groove, and the second protective plate fixing member passes through the third protective plate fixing hole and is inserted into the fourth protective plate fixing hole.

[0019] In one embodiment, the second insulating protective plate includes two L-shaped plates arranged symmetrically along its center, and the corners of the L-shaped plates are provided with arc-shaped grooves. The two arc-shaped grooves are arranged opposite each other to form the fixing holes of the third protective plate.

[0020] In one embodiment, the switch insulation protection structure further includes a first protective plate fixing member. The first insulating protective plate is provided with a first protective plate fixing hole, and the insulating base is provided with a second protective plate fixing hole. The first protective plate fixing member passes through the first protective plate fixing hole and is inserted into the second protective plate fixing hole.

[0021] A circuit breaker with a switch insulation protection structure includes a switch and the switch insulation protection structure. The insulating base of the switch insulation protection structure is connected to the base of the switch, and the terminal block of the switch passes through the terminal block mounting hole of the insulating base and is connected to an external wire.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The aforementioned switch insulation protection structure includes an insulating base, a first insulating protective plate, and a second insulating protective plate. The insulating base has terminal block mounting holes and protective plate mounting slots. For vertical wiring, the insulating base and the first insulating protective plate are used for installation and protection. The horizontal section of the terminal block passes through the terminal block mounting holes, and the vertical section of the terminal block extends from between the first insulating protective plate and the insulating base, facilitating connection to external wires and achieving insulation isolation of the terminal block during vertical wiring. For horizontal wiring, the second insulating protective plate is inserted into the protective plate mounting slot to achieve electrical isolation between multiple terminal blocks. Therefore, this switch insulation protection structure, by providing a cross-shaped groove in the insulating base, achieves versatility for both horizontal and vertical wiring. Only the first and second insulating protective plates need to be replaced, broadening the applicability of the switch insulation protection structure to various connection methods and effectively improving electrical insulation performance.

[0024] 2. A terminal block limiting groove is provided in the insulating base, which can be used in the vertical wiring method. The vertical section of the terminal block can pass through the terminal block limiting groove and extend out of the insulating base. The two side walls of the terminal block limiting groove can limit the left and right position of the vertical section of the terminal block, preventing the terminal block from deflecting due to electrodynamic force when the current is large, thereby protecting the switch. The terminal block fixing component can also pass through the first terminal block fixing hole and be inserted into the second terminal block fixing hole, further preventing the terminal block from moving back and forth, and improving the reliability of the terminal block limiting.

[0025] 3. The switch mounting plate not only integrates the insulating base and the base, but also adapts to different wall mounting methods for different wiring configurations through the first and second folding sections. When the switch uses vertical wiring, the vertical section of the L-shaped terminal block extends to both ends of the insulating base. In this case, the first folding section, parallel to the first side, can be used to connect to the wall, allowing the first insulating protective plate to abut against the wall. When the switch uses horizontal wiring, the horizontal terminal block extends towards the insulating base away from the base. The second folding section, perpendicular to the first side, connects to the wall, allowing one end face of the insulating base to abut against the wall. This effectively broadens the installation options for the switch, leaves operating space for the wire connection holes of the terminal block, and avoids interference with the connection between the terminal block and external wires during installation.

[0026] 4. The switch mounting plate is provided with a third fold and a fourth fold. The third fold connects to the side wall of the mounting plate connecting groove, and the fourth fold connects to the base, realizing a fixed connection between the insulating base and the base, effectively simplifying the structure and improving installation efficiency. At the same time, the switch mounting plate is also provided with snap-fit ​​holes, which cooperate with the snap-fit ​​protrusions on the insulating base, and can be used for the installation and positioning of the switch mounting plate and the insulating base, thereby improving the reliability of the connection between the switch mounting plate and the insulating base.

[0027] 5. The second insulating protective plate is detachably connected through the second protective plate fastener, and the second insulating protective plate is divided into two L-shaped plates arranged symmetrically along the center. The corners of the L-shaped plates are provided with arc-shaped grooves to form the fixing holes of the third protective plate, so as to avoid the second insulating protective plate being unable to be inserted into the protective plate mounting slot due to processing accuracy issues, and simplify the installation process of the second insulating protective plate.

[0028] 6. The first insulating protective plate is detachably connected through the first protective plate fixing component, which facilitates the replacement of the first insulating protective plate and the second insulating protective plate, and realizes different switch connection methods. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the switch insulation protection structure in one embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the switch insulation protection structure in another embodiment of the present invention.

[0031] Figure 3 This utility model Figure 1 A schematic diagram of the insulation protection structure of the switch (with the first insulation protection plate hidden).

[0032] Figure 4 This utility model Figure 1 A cross-sectional view of the insulation protection structure of the switch.

[0033] Figure 5 This is a schematic diagram of the structure of the insulating base and the second insulating protective plate in this utility model.

[0034] Figure 6 This is a schematic diagram of the insulating base in this utility model.

[0035] Figure 7 This is a schematic diagram of the switch mounting plate in this utility model.

[0036] Figure 8 This is a schematic diagram of the structure of the second insulating protective plate in this utility model.

[0037] Reference numerals: 100, switch insulation protection structure; 10, insulation base; 11, terminal block mounting hole; 12, protective plate mounting groove; 13, terminal block limiting groove; 14, second terminal block fixing hole; 15, mounting plate connecting groove; 16, snap-fit ​​protrusion; 17, second protective plate fixing hole; 18, fourth protective plate fixing hole; 20, first insulating protective plate; 21, first protective plate fixing component; 30, second insulating protective plate; 31, second protective plate fixing component; 32, L-shaped plate; 33, arc-shaped groove; 40, switch mounting plate; 41, first folding part; 42, second folding part; 43, third folding part; 44, fourth folding part; 45, snap-fit ​​hole; 46, ground wire connection part; 50, terminal block; 51, L-shaped terminal block; 52, horizontal terminal block; 53, terminal block fixing component; 60, switch; 61, base; 62, mechanism. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0039] The switch insulation protection structure 100 in some embodiments is described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 8 In one embodiment, a switch insulation protection structure 100 is provided, including an insulating base 10, a first insulating protection plate 20, and a second insulating protection plate 30.

[0041] The insulating base 10 is used to connect with the base 61 of the switch 60. The insulating base 10 is provided with multiple terminal block mounting holes 11. The terminal block 50 of the switch 60 can pass through the terminal block mounting holes 11 to connect with external wires. The terminal block mounting holes 11 correspond one-to-one with the terminal block 50.

[0042] Furthermore, when the terminal block 50 is an L-shaped terminal block 51, the first insulating protective plate 20 is connected to the side of the insulating base 10 away from the base 61. The horizontal section of the terminal block 50 passes through the terminal block mounting hole 11, and the vertical section of the terminal block 50 extends out from between the first insulating protective plate 20 and the insulating base 10. The insulating base 10 is provided with a protective plate mounting groove 12 on the side away from the base 61. The protective plate mounting groove 12 is a "+" shaped groove, and multiple terminal block mounting holes 11 are respectively located in an area divided by the protective plate mounting groove 12. The shape of the second insulating protective plate 30 is adapted to the shape of the protective plate mounting groove 12. When the terminal block 50 is a horizontal terminal block 52, the second insulating protective plate 30 is inserted into the protective plate mounting groove 12.

[0043] The aforementioned switch insulation protection structure 100 includes an insulating base 10, a first insulating protective plate 20, and a second insulating protective plate 30. The insulating base 10 has terminal block mounting holes 11 and protective plate mounting grooves 12. For vertical wiring, the insulating base 10 and the first insulating protective plate 20 are used for installation and protection. The horizontal section of the terminal block 50 passes through the terminal block mounting holes 11, and the vertical section of the terminal block 50 extends between the first insulating protective plate 20 and the insulating base 10, facilitating connection to external wires and achieving insulation isolation of the terminal block 50 during vertical wiring. For horizontal wiring, the second insulating protective plate 30 is inserted into the protective plate mounting groove 12, achieving electrical isolation between multiple terminal blocks 50. Therefore, by providing a cross-shaped groove in the insulating base 10, the switch insulation protection structure 100 achieves versatility for both horizontal and vertical wiring. Only the first insulating protective plate 20 and the second insulating protective plate 30 need to be replaced, broadening the applicability of the switch insulation protection structure 100 to various connection methods and effectively improving electrical insulation performance.

[0044] Specifically, such as Figure 1 and Figure 2 As shown, in one embodiment, the switch 60 includes a mechanism 62 and a base 61. One side of the base 61 is connected to the mechanism 62, and the other side is connected to the insulating base 10. The mechanism 62 has a stationary contact and a moving contact for electrical connection with the terminal block 50. Generally, there are multiple terminal blocks 50, which are used to connect the incoming wires and the outgoing wires, respectively.

[0045] Specifically, such as Figure 5 and Figure 6 As shown, in one embodiment, the insulating base 10 is provided with a plurality of terminal block limiting grooves 13, each corresponding to a terminal block 50. When the terminal block 50 is an L-shaped terminal block 51, the horizontal section of the terminal block 50 passes through the terminal block mounting hole 11, and the vertical section of the terminal block 50 extends out of the insulating base 10 through the terminal block limiting groove 13. The terminal block limiting groove 13 has openings facing the first side and end face of the insulating base 10, facilitating the insertion of the vertical section of the L-shaped terminal block 51 into the terminal block limiting groove 13 and allowing it to extend out of the end face of the insulating base 10 for connection to external wires.

[0046] A terminal block limiting groove 13 is provided in the insulating base 10, which can be used in the vertical wiring mode. The vertical section of the terminal block 50 can pass through the terminal block limiting groove 13 and extend out of the insulating base 10. The two side walls of the terminal block limiting groove 13 can limit the left and right position of the vertical section of the terminal block 50, preventing the terminal block 50 from deflecting to the side due to electrodynamic force when the current is large, thereby protecting the switch 60.

[0047] Furthermore, such as Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the switch insulation protection structure 100 further includes a plurality of terminal block fixing members 53. The vertical section of the terminal block 50 is provided with a first terminal block fixing hole, and the bottom wall of the terminal block limiting groove 13 is provided with a second terminal block fixing hole 14. When the terminal block 50 is an L-shaped terminal block 51, the terminal block fixing member 53 passes through the first terminal block fixing hole and is inserted into the second terminal block fixing hole 14.

[0048] The terminal block fixing member 53 can also pass through the first terminal block fixing hole and be inserted into the second terminal block fixing hole 14, further preventing the terminal block 50 from moving back and forth and improving the reliability of the terminal block 50's limit.

[0049] In this specific embodiment, the section of the terminal block 50 extending beyond the insulating base 10 is also provided with a wire connection hole for electrical connection with external wires via bolts, screws, or other structures. For the L-shaped terminal block 51, the wire connection hole is located on the vertical section of the L-shaped terminal block 51; for the horizontal terminal block 52, the wire connection hole is located at the end of the horizontal terminal block 52 away from the insulating base 10.

[0050] Specifically, such as Figure 1 and Figure 2 As shown, in one embodiment, the switch insulation protection structure 100 further includes a switch mounting plate 40. The side of the insulating base 10 away from the base 61 is a first side, and the second side of the insulating base 10 is adjacent to the first side. The switch mounting plate 40 is disposed on the second side of the insulating base 10 and connected to the base 61.

[0051] Furthermore, such as Figure 1 , Figure 2 and Figure 7 As shown, in one embodiment, the switch mounting plate 40 is provided with a first folding part 41 and a second folding part 42. The first folding part 41 and the second folding part 42 are respectively bent in the direction away from the insulating base 10 of the switch mounting plate 40. The first folding part 41 is parallel to the first side of the insulating base 10, and the second folding part 42 is perpendicular to the first side.

[0052] Specifically, when the terminal block 50 is an L-shaped terminal block 51, the first folding mounting part is connected to the wall; when the terminal block 50 is a horizontal terminal block 52, the second folding mounting part is connected to the wall.

[0053] The switch mounting plate 40 not only integrates the insulating base 10 and the base 61, but also adapts to different wall mounting methods of the switch 60 under different wiring conditions through the first folding part 41 and the second folding part 42. When the switch 60 is vertically wired, the vertical section of the L-shaped terminal block 51 extends to both ends of the insulating base 10. At this time, the first folding part 41, which is parallel to the first side, can be used to connect to the wall, so that the first insulating protective plate 20 abuts against the wall. When the switch 60 is horizontally wired, the horizontal terminal block 52 extends towards the insulating base 10 away from the base 61. The second folding part 42, which is perpendicular to the first side, is used to connect to the wall, so that one end face of the insulating base 10 abuts against the wall. This effectively broadens the installation methods of the switch 60, leaves operating space for the wire connection holes of the terminal block 50, and avoids interference with the connection between the terminal block 50 and external wires during installation.

[0054] In this specific embodiment, both the first folding part 41 and the second folding part 42 are provided with wall connection holes. Bolts, screws and other structures pass through the wall connection holes and are inserted into the wall, thereby enabling the installation of the switch 60.

[0055] Furthermore, such as Figure 1 , Figure 6 and Figure 7 As shown, in one embodiment, the switch mounting plate 40 is provided with a third folding portion 43 and a fourth folding portion 44. The third folding portion 43 and the fourth folding portion 44 are respectively bent towards the switch mounting plate 40 near the insulating base 10, and are both parallel to the first side. The second side of the insulating base 10 is provided with a mounting plate connecting groove 15. The mounting plate connecting groove 15 has an opening facing the first side. The third folding portion 43 extends into the mounting plate connecting groove 15 and is connected to the side wall of the mounting plate connecting groove 15. The fourth folding portion 44 is connected to the base 61.

[0056] The mounting plate connecting groove 15 has an opening facing the first side and the second side, which facilitates the third folding part 43 to extend into the mounting plate connecting groove 15, and also facilitates the insertion of bolts, screws and other fixing structures into the mounting plate connecting groove 15 to fix the third folding part 43.

[0057] The switch mounting plate 40 is provided with a third folding part 43 and a fourth folding part 44. The third folding part 43 is connected to the side wall of the mounting plate connecting groove 15, and the fourth folding part 44 is connected to the base 61, thereby realizing the fixed connection between the insulating base 10 and the base 61, which effectively simplifies the structure and improves the installation efficiency.

[0058] In this specific embodiment, the third folding part 43 and the fourth folding part 44 are also provided with a first folding connection hole, and the side wall of the mounting plate connection groove 15 is provided with a second folding connection hole. By inserting a bolt, screw or other structure through the first folding connection hole into the second folding connection hole, the connection between the switch mounting plate 40 and the insulating base 10 and the base 61 can be realized.

[0059] Furthermore, such as Figure 1 , Figure 5 and Figure 7 As shown, in one embodiment, the second side of the insulating base 10 is provided with a snap-fit ​​protrusion 16, and the switch mounting plate 40 is provided with a snap-fit ​​hole 45, into which the snap-fit ​​protrusion 16 is inserted. The switch mounting plate 40 is also provided with a snap-fit ​​hole 45, which cooperates with the snap-fit ​​protrusion 16 on the insulating base 10, and can be used for the installation and positioning of the switch mounting plate 40 and the insulating base 10, thereby improving the reliability of the connection between the switch mounting plate 40 and the insulating base 10.

[0060] Furthermore, a base snap-fit ​​protrusion may also be provided on the side of the base 61, and a corresponding base snap-fit ​​hole is provided on the switch mounting plate 40. The base snap-fit ​​protrusion extends into the base snap-fit ​​hole to realize the positioning and connection between the switch mounting plate 40 and the base 61.

[0061] Furthermore, such as Figure 1 , Figure 5 and Figure 7 As shown, in one embodiment, the switch mounting plate 40 is further provided with a ground wire connection part 46, and the ground wire connection part 46 is provided with a ground wire connection hole for connecting the ground wire through bolts, screws and other structures.

[0062] Specifically, such as Figure 4 and Figure 5 As shown, in one embodiment, the switch insulation protection structure 100 further includes a second protection plate fixing member 31. The center of the second insulation protection plate 30 is provided with a third protection plate fixing hole, and the center of the bottom wall of the protection plate mounting groove 12 is provided with a fourth protection plate fixing hole 18. The second protection plate fixing member 31 passes through the third protection plate fixing hole and is inserted into the fourth protection plate fixing hole 18.

[0063] In this specific embodiment, the second protective plate fixing component 31 includes commonly used fixing structures such as bolts and screws.

[0064] Furthermore, such as Figure 5 and Figure 8 As shown, in one embodiment, the second insulating protective plate 30 includes two L-shaped plates 32 arranged symmetrically along its center. The corners of the L-shaped plates 32 are provided with arc-shaped grooves 33, and the two arc-shaped grooves 33 are arranged opposite to each other to form a fixing hole for the third protective plate.

[0065] The second insulating protective plate 30 is detachably connected through the second protective plate fastener 31, and the second insulating protective plate 30 is divided into two L-shaped plates 32 arranged symmetrically along the center. The corners of the L-shaped plates 32 are provided with arc-shaped grooves 33 to form the third protective plate fixing holes, so as to avoid the second insulating protective plate 30 being unable to be inserted into the protective plate mounting slot 12 due to processing accuracy issues, and to simplify the installation process of the second insulating protective plate 30.

[0066] Specifically, such as Figure 1 As shown, in one embodiment, the switch insulation protection structure 100 further includes a first protective plate fixing member 21. The first insulating protective plate 20 has a first protective plate fixing hole, and the insulating base 10 has a second protective plate fixing hole 17. The first protective plate fixing member 21 passes through the first protective plate fixing hole and is inserted into the second protective plate fixing hole 17. The first insulating protective plate 20 is detachably connected through the first protective plate fixing member 21, which facilitates the replacement of the first insulating protective plate 20 and the second insulating protective plate 30, and realizes different connection methods for the switch 60.

[0067] Furthermore, such as Figure 1 and Figure 6 As shown, in one embodiment, there are multiple first protective plate fixing members 21, first protective plate fixing holes and second protective plate fixing holes 17. An insulating reinforcing rib is provided on the edge of the first side of the insulating base 10. The second protective plate fixing holes 17 are provided on the insulating reinforcing rib. The insulating reinforcing rib effectively isolates the terminal block 50 from the switch mounting plate 40, eliminates the risk of grounding short circuit, and effectively improves the insulation performance of the product.

[0068] like Figures 1 to 6 As shown, in one embodiment, a circuit breaker with a switch insulation protection structure 100 is provided, including a switch and the switch insulation protection structure 100. The insulating base 10 of the switch insulation protection structure 100 is connected to the base 61 of the switch 60, and the terminal block 50 of the switch 60 passes through the terminal block mounting hole 11 of the insulating base 10 and is connected to an external wire.

[0069] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0074] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A switch insulation protection structure, characterized in that, include: An insulating base (10) is provided for connection with the base (61) of the switch (60). The insulating base (10) is provided with a plurality of terminal block mounting holes (11). The terminal block (50) of the switch (60) can pass through the terminal block mounting holes (11) to connect with external wires. The terminal block mounting holes (11) correspond one-to-one with the terminal block (50). When the terminal block (50) is an L-shaped terminal block (51), the first insulating protective plate (20) is connected to the side of the insulating base (10) away from the base (61). The horizontal section of the terminal block (50) passes through the terminal block mounting hole (11), and the vertical section of the terminal block (50) extends from between the first insulating protective plate (20) and the insulating base (10). The second insulating protective plate (30) has a protective plate mounting groove (12) on the side of the insulating base (10) away from the base (61). The protective plate mounting groove (12) is a "+" shaped groove. Multiple terminal block mounting holes (11) are located in an area divided by the protective plate mounting groove (12). The shape of the second insulating protective plate (30) is adapted to the shape of the protective plate mounting groove (12). When the terminal block (50) is a horizontal terminal block (52), the second insulating protective plate (30) is inserted into the protective plate mounting groove (12).

2. The switch insulation protection structure according to claim 1, characterized in that, The insulating base (10) is provided with a plurality of terminal block limiting grooves (13), and the terminal block limiting grooves (13) correspond one-to-one with the terminal block (50). When the terminal block (50) is an L-shaped terminal block (51), the horizontal section of the terminal block (50) passes through the terminal block mounting hole (11), and the vertical section of the terminal block (50) passes through the terminal block limiting groove (13) and extends out of the insulating base (10).

3. The switch insulation protection structure according to claim 2, characterized in that, The switch insulation protection structure also includes multiple terminal block fixing parts (53). The vertical section of the terminal block (50) is provided with a first terminal block fixing hole, and the bottom wall of the terminal block limiting groove (13) is provided with a second terminal block fixing hole (14). When the terminal block (50) is an L-shaped terminal block (51), the terminal block fixing part (53) passes through the first terminal block fixing hole and is inserted into the second terminal block fixing hole (14).

4. The switch insulation protection structure according to claim 1, characterized in that, The switch insulation protection structure also includes a switch mounting plate (40). The side of the insulating base (10) away from the base (61) is a first side. The second side of the insulating base (10) is adjacent to the first side. The switch mounting plate (40) is disposed on the second side of the insulating base (10) and connected to the base (61).

5. The switch insulation protection structure according to claim 4, characterized in that, The switch mounting plate (40) is provided with a first folding part (41) and a second folding part (42). The first folding part (41) and the second folding part (42) are bent toward the switch mounting plate (40) away from the insulating base (10). The first folding part (41) is parallel to the first side of the insulating base (10), and the second folding part (42) is perpendicular to the first side. When the terminal block (50) is an L-shaped terminal block (51), the first folded part (41) is connected to the wall; When the terminal block (50) is a horizontal terminal block (52), the second folding part (42) is connected to the wall.

6. The switch insulation protection structure according to claim 4, characterized in that, The switch mounting plate (40) is provided with a third folding part (43) and a fourth folding part (44). The third folding part (43) and the fourth folding part (44) are bent toward the switch mounting plate (40) and closer to the insulating base (10), and are parallel to the first side. The second side of the insulating base (10) is provided with a mounting plate connecting groove (15). The mounting plate connecting groove (15) has an opening facing the first side. The third folding part (43) extends into the mounting plate connecting groove (15) and is connected to the side wall of the mounting plate connecting groove (15). The fourth folding part (44) is connected to the base (61).

7. The switch insulation protection structure according to claim 4, characterized in that, The second side of the insulating base (10) is provided with a snap-fit ​​protrusion (16), and the switch mounting plate (40) is provided with a snap-fit ​​hole (45), and the snap-fit ​​protrusion (16) is inserted into the snap-fit ​​hole (45).

8. The switch insulation protection structure according to claim 1, characterized in that, The switch insulation protection structure also includes a second protective plate fixing member (31). The center of the second insulating protective plate (30) is provided with a third protective plate fixing hole, and the center of the bottom wall of the protective plate mounting groove (12) is provided with a fourth protective plate fixing hole (18). The second protective plate fixing member (31) passes through the third protective plate fixing hole and is inserted into the fourth protective plate fixing hole (18).

9. A switch insulation protection structure according to claim 8, characterized in that, The second insulating protective plate (30) includes two L-shaped plates (32) arranged symmetrically along its center. The corners of the L-shaped plates (32) are provided with arc-shaped grooves (33), and the two arc-shaped grooves (33) are arranged opposite to each other to form the fixing holes of the third protective plate.

10. A switch insulation protection structure according to claim 1, characterized in that, The switch insulation protection structure also includes a first protective plate fixing member (21). The first insulating protective plate (20) is provided with a first protective plate fixing hole, and the insulating base (10) is provided with a second protective plate fixing hole (17). The first protective plate fixing member (21) passes through the first protective plate fixing hole and is inserted into the second protective plate fixing hole (17).

11. A circuit breaker with a switch insulation protection structure, characterized in that, The device includes a switch and a switch insulation protection structure (100) as described in any one of claims 1-10, wherein the insulating base (10) of the switch insulation protection structure (100) is connected to the base (61) of the switch (60), and the terminal block (50) of the switch (60) passes through the terminal block mounting hole (11) of the insulating base (10) and is connected to an external wire.

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