Fuse type disconnecting switch

Abstract

The utility model provides a fuse type disconnecting switch, which comprises a base and a cover plate, and is characterized in that the base is provided with a plurality of wiring terminals and first partition plates arranged between two adjacent wiring terminals; the second partition plate is detachably installed above the wiring terminal, the second partition plate and the base are assembled through an insertion structure, and the insertion structure comprises first insertion grooves formed in the two sides of the base and insertion blocks which are arranged on the two sides of the second partition plate in the length direction and are in interference fit with the first insertion grooves; the inserting blocks and the inserting grooves which are matched with each other have the advantages of being simple in structure and rapid and convenient to assemble, the two positioning blocks corresponding to the first partition plate are formed on the face, facing the base, of the second partition plate, the positioning groove allowing the first partition plate to be inserted is formed between the two positioning blocks, and therefore rapid assembly between the second partition plate and the base is better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a fuse type isolating switch. Background Art

[0002] Isolating switches are usually used in conjunction with fuses. They have the two functions of "load disconnection" and "isolation". Fuses can be added to each pole for "overload and short-circuit protection", making full use of the protection characteristic curve of the fuse to protect cables and equipment in the line, and providing obvious disconnection points during maintenance to ensure the personal safety of workers.

[0003] The existing fuse-type disconnector includes a base and a cover plate rotatably mounted on the base. Since there is a certain gap in the cover plate during rotation, the wiring terminals are exposed. Currently, an insulating partition is arranged above the wiring terminals to increase the protection performance. The two sides of the insulating partition are fixed to the base by screws. The screw assembly method has the defect of cumbersome assembly. Utility Model Content

[0004] To this end, the utility model provides a fuse-type isolating switch, comprising: a base and a cover plate, the base being provided with a plurality of wiring terminals, and a first partition plate arranged between two adjacent wiring terminals; a second partition plate, detachably mounted above the wiring terminals, the second partition plate being assembled with the base through a plug-in structure, the plug-in structure comprising a first slot arranged on both sides of the base, and plug-in blocks arranged on both sides of the length direction of the second partition plate and interference fit with the first slot, the second partition plate having two positioning blocks arranged corresponding to the first partition plate formed on one side facing the base, a positioning groove for inserting the first partition plate being formed between the two positioning blocks.

[0005] At least one convex rib is arranged on the outer wall of the insert block.

[0006] A handle is integrally formed on the cover plate.

[0007] The handle comprises a grip portion, and connecting plates which are arranged at two sides of the grip portion and are integrally connected with the cover plate, and reinforcing ribs are arranged on the sides of the connecting plates.

[0008] The wiring terminal comprises a terminal plate and elastic arms arranged on both sides of the terminal plate, and the two elastic arms are opposite to each other to form a second slot.

[0009] The base has two rows of wiring terminals arranged one above the other. A baffle located between the two rows of wiring terminals and suitable for limiting the position of the terminal board is provided on the bottom plate of the base. The upper end surface of the baffle is located between the upper surface and the lower surface of the terminal board.

[0010] The technical solution of this utility model has the following advantages:

[0011] 1. The utility model provides a fuse-type isolating switch, in which the second partition is assembled with the base through a plug-in structure, and the plug-in structure includes a first slot provided on both sides of the base, and plug-in blocks provided on both sides of the length direction of the second partition and interference-fitted with the first slot. The plug-in blocks and the slots that cooperate with each other have the advantage of a simple structure. In addition, two positioning blocks corresponding to the first partition are formed on one side of the second partition facing the base, and a positioning groove for inserting the first partition is formed between the two positioning blocks, which is more conducive to the assembly between the second partition and the base.

[0012] 2. The fuse-type isolating switch provided by the utility model has a handle integrally formed on the cover plate, which has a simple structure and is convenient for users to hold the handle and open the cover plate, making it convenient for users to use.

[0013] 3. The fuse-type disconnector provided by the utility model has a baffle located between two rows of terminal blocks on the bottom plate of the base, which is suitable for limiting the position of the terminal board. The upper end surface of the baffle is located between the upper surface and the lower surface of the terminal board. According to the chimney effect, the height of the baffle is set relatively low, thereby avoiding the situation where the baffle is too high to block the discharge of heat, thereby reducing the temperature rise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional diagram of the fuse-type disconnect switch of the utility model;

[0016] Figure 2 for Figure 1 sectional view of

[0017] Figure 3 is a three-dimensional diagram of a first partition;

[0018] Figure 4 A three-dimensional diagram of the base;

[0019] Figure 5 for Figure 4 sectional view of

[0020] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part A.

[0021] Explanation of the accompanying drawings: 1. base; 2. cover plate; 3. terminal block; 4. first partition plate; 5. second partition plate; 6. first slot; 7. plug-in block; 8. positioning block; 9. positioning groove; 10. convex rib; 11. handle; 12. handle portion; 13. connecting plate; 14. reinforcing rib; 15. terminal board; 16. elastic arm; 17. bottom plate; 18. baffle; 19. upper end surface; 20. upper surface; 21. lower surface. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] 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.

[0025] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Example

[0027] This embodiment provides a fuse-type isolating switch, such as Figure 1 As shown, it includes a base 1, a cover plate 2, and a second partition plate 5.

[0028] Base 1, such as Figure 4As shown, it has two rows of wiring terminals 3 arranged vertically, each row includes three wiring terminals 3 arranged horizontally, and a first partition 4 arranged vertically is provided between two adjacent wiring terminals 3. Figure 2 As shown, the wiring terminal 3 includes a terminal plate 15 and elastic arms 16 disposed on both sides of the terminal plate 15, and the two elastic arms 16 are opposite to each other to form a second slot, as shown in FIG. Figure 5 and Figure 6 As shown, a baffle 18 is provided on the bottom plate 17 of the base 1, which is located between the two groups of terminal blocks 3 and is suitable for limiting the position of the terminal board 15. The upper end surface 19 of the baffle 18 is located between the upper surface 20 and the lower surface 21 of the terminal board 15. According to the chimney effect, heat will run from bottom to top. If the height of the baffle 18 is set too high, it will affect the heat dissipation.

[0029] The second partition plate 5 is detachably mounted above the wiring terminal 3. The second partition plate 5 is assembled with the base 1 through a plug-in structure. Figure 2 and Figure 3 As shown, the plug-in structure includes a first slot 6 arranged on both sides of the base 1, and an insert block 7 arranged on both sides of the length direction of the second partition 5 and interference fit with the first slot 6, a rib 10 is provided on the outer wall of the insert block 7, and two positioning blocks 8 corresponding to the first partition 4 are formed on the side of the second partition 5 facing the base 1, and a positioning groove 9 for inserting the first partition 4 is formed between the two positioning blocks 8.

[0030] The cover plate 2 is integrally formed with a handle 11, such as Figure 1 As shown, the handle 11 includes a handle portion 12, and connecting plates 13 disposed on both sides of the handle portion 12 and integrally connected to the cover plate 2, and the side of the connecting plate 13 is provided with reinforcing ribs 14.

[0031] The utility model provides a fuse-type isolating switch, in which the second partition plate 5 is assembled with the base 1 through a plug-in structure, and the plug-in structure includes a first slot 6 arranged on both sides of the base 1, and plug blocks 7 arranged on both sides of the length direction of the second partition plate 5 and interference fit with the first slot 6. The plug blocks 7 and the first slot 6 that cooperate with each other have the advantage of a simple structure. In addition, two positioning blocks 8 corresponding to the first partition plate 4 are formed on one side of the second partition plate 5 facing the base 1, and a positioning groove 9 for inserting the first partition plate 4 is formed between the two positioning blocks 8, which is more conducive to the assembly between the second partition plate 5 and the base 1.

[0032] 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 fuse-type disconnect switch, characterized in that: include: A base (1) and a cover plate (2), wherein the base (1) is provided with a plurality of wiring terminals (3), and a first partition plate (4) provided between two adjacent wiring terminals (3); The second partition (5) is detachably mounted above the wiring terminal (3). The second partition (5) is assembled with the base (1) through a plug-in structure. The plug-in structure includes a first slot (6) provided on both sides of the base (1), and plug blocks (7) provided on both sides of the second partition (5) in the length direction and interference-fitted with the first slot (6). The second partition (5) is formed with two positioning blocks (8) corresponding to the first partition (4) on one side facing the base (1), and a positioning groove (9) for inserting the first partition (4) is formed between the two positioning blocks (8).

2. The fuse-type disconnect switch according to claim 1, characterized in that: At least one convex rib (10) is provided on the outer wall of the insert block (7).

3. The fuse-type disconnector according to claim 1 or 2, characterized in that: A handle (11) is integrally formed on the cover plate (2).

4. The fuse-type disconnector according to claim 3, characterized in that: The handle (11) comprises a grip portion (12), and connecting plates (13) arranged on both sides of the grip portion (12) and integrally connected to the cover plate (2), and reinforcing ribs (14) are provided on the sides of the connecting plate (13).

5. The fuse-type disconnector according to claim 1, characterized in that: The connection terminal (3) comprises a terminal plate (15) and elastic arms (16) arranged on both sides of the terminal plate (15), wherein the two elastic arms (16) are opposed to each other to form a second slot.

6. The fuse-type disconnector according to claim 5, characterized in that: The base (1) has two rows of wiring terminals (3) arranged one above the other. A baffle (18) located between the two rows of wiring terminals (3) and suitable for limiting the position of the terminal board (15) is provided on a bottom plate (17) of the base (1). The baffle (18) has an upper end surface (19) located between an upper surface (20) and a lower surface (21) of the terminal board (15).

Images