Protection device

Abstract

The utility model relates to a distributed power supply grid-connected protection device, in particular to a protection device which comprises a box body, a protection instrument is installed on the lower surface of the inner wall of the box body, a movable frame a is fixedly connected to the left side face of the inner wall of the box body, and the lower surface of the inner wall of the movable frame a is in sliding connection with the lower surfaces of two sliding blocks a respectively. A fixed plate is fixedly connected to the right side face of the sliding block a, two movable frames b are fixedly connected to the right side face of the fixed plate, the fixed plate is pulled to drive the sliding block a to move in the movable frames a, the position of the lifting frame is adjusted according to the number and position of wires, the wires are wound around the outer surfaces of two connecting plates, and the wires are separated through partition plates; and the fan extracts air in the box body and exhausts the air to the electric wires on the upper surface of the connecting plate, heat dissipation is carried out on the outer surfaces of the electric wires, and the problem that certain potential safety hazards exist due to the fact that the electric wires are disordered is solved.

Description

Technical Field

[0001] The utility model relates to a protection device, in particular to a distributed power supply grid-connected protection device. Background Art

[0002] Distributed generation grid-connected technology refers to the technical measures for connecting distributed generation to the distribution network and ensuring the safe and reliable operation of the distribution network containing distributed generation and the qualified power quality.

[0003] Distributed power grid-connected protection refers to: relay protection measures installed at the common coupling point, which can detect faults and other abnormal conditions occurring on the main grid side (system side) and the distributed power side, and isolate the distributed power from the main grid in time to avoid endangering the normal operation of the main grid or damaging the distributed power device. Grid-connected protection includes anti-islanding protection, fault protection and other abnormal protection.

[0004] During the use of the existing power grid-connected protection device, since the device involves more circuits, the use of internal wires also increases accordingly. If the internal wires cannot be fixed and organized, the internal wires will be tangled and chaotic, which will be more troublesome for maintenance staff to repair it in the later stage. This not only increases the workload of the staff, but also poses certain safety hazards due to the chaotic wires. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a protection device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protection device, comprising a box body, a protection instrument is installed on the lower surface of the inner wall of the box body, a movable frame a is fixedly connected to the left side of the inner wall of the box body, the lower surface of the inner wall of the movable frame a is slidably connected to the lower surfaces of two sliders a respectively, the right side of the slider a is fixedly connected to a fixed plate, the right side of the fixed plate is fixedly connected to two movable frames b, the upper surface and the lower surface of the inner wall of the movable frame b are slidably connected to the upper surface and the lower surface of a plurality of sliders b respectively, a lifting frame is fixedly connected to the front side of the slider b, the left and right side surfaces of the inner wall of the lifting frame are slidably connected to the left and right side surfaces of two threaded sleeves respectively, and the front side of the threaded sleeve is fixedly connected to a connecting plate.

[0007] Preferably, a fixing stud is threadedly connected to the screw hole on the upper surface of the slider a, and the left and right sides of the fixing stud are respectively slidably connected to the left and right sides of the inner wall of the limiting groove, and the limiting groove is provided on the upper surface of the movable frame a.

[0008] Preferably, a mounting plate is fixedly connected to the front side of the lifting frame, a fan is mounted on the upper surface of the mounting plate, and the position of the fan corresponds to the position of the connecting plate.

[0009] Preferably, the upper surface of the inner wall of the lifting frame is rotatably connected to the top of the screw a, the bottom end of the screw a is fixedly connected to the top of the screw b, and the bottom end of the screw b extends to the outside of the lifting frame through the bearing clamped on the lower surface of the inner wall of the lifting frame.

[0010] Preferably, a plurality of partitions are fixedly connected to the surfaces of the two connecting plates that are away from each other.

[0011] Preferably, a plurality of heat dissipation holes are symmetrically provided on the left and right side surfaces of the box body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives the slider a to move in the movable frame a by pulling the fixed plate, adjusts the position of the lifting frame according to the number and position of the wires, winds the wires around the outer surfaces of the two connecting plates, separates the wires by partitions to avoid the wires being entangled with each other and affecting later maintenance, and the fan draws air from the inside of the box and discharges it to the wires on the upper surface of the connecting plate, dissipates heat from the outer surface of the wires, and solves the problem of certain safety hazards caused by the chaotic wires.

[0014] In the utility model, the screw rod b and the screw rod a are rotated, and the screw rods a and the screw rod b rotate to drive two threaded sleeves and two connecting plates to approach each other, so as to facilitate the extension and adjustment of the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure viewed from above in the utility model;

[0018] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the utility model;

[0019] In the figure: 1. box body; 2. heat dissipation hole; 3. protector; 4. mobile frame a; 5. slider a; 6. fixing stud; 7. fixing plate; 8. mobile frame b; 9. limit groove; 10. mounting plate; 11. fan; 12. slider b; 13. partition; 14. lifting frame; 15. screw a; 16. screw b; 17. threaded sleeve; 18. connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] Example

[0022] See also Figure 1-3 The utility model provides the following technical solutions: a protection device, comprising a box body 1, a protection instrument 3 is installed on the lower surface of the inner wall of the box body 1, a moving frame a4 is fixedly connected to the left side of the inner wall of the box body 1, the lower surface of the inner wall of the moving frame a4 is slidably connected to the lower surfaces of two sliders a5, the right side of the slider a5 is fixedly connected to a fixed plate 7, the right side of the fixed plate 7 is fixedly connected to two moving frames b8, the upper surface and the lower surface of the inner wall of the moving frame b8 are slidably connected to the upper surface and the lower surface of a plurality of sliders b12, the front of the slider b12 is fixedly connected to a lifting frame 14, the left and right side surfaces of the inner wall of the lifting frame 14 are slidably connected to the left and right side surfaces of two threaded sleeves 17, and the front of the threaded sleeve 17 is fixedly connected to a connecting plate 18.

[0023] Specifically, a fixing stud 6 is threadedly connected to the screw hole on the upper surface of the slider a5, and the left and right sides of the fixing stud 6 are respectively slidably connected to the left and right sides of the inner wall of the limiting groove 9, and the limiting groove 9 is provided on the upper surface of the moving frame a4;

[0024] Pull the fixed plate 7 to drive the slider a5 to move in the movable frame a4. Adjust the positions of the fixed plate 7, the movable frame b8 and the lifting frame 14 according to the number and position of the wires. Rotate the fixing stud 6 to fix the slider a5 and the fixed plate 7.

[0025] Specifically, the front of the lifting frame 14 is fixedly connected with a mounting plate 10, and the upper surface of the mounting plate 10 is mounted with a fan 11, and the position of the fan 11 corresponds to the position of the connecting plate 18;

[0026] The air inside the box body 1 is drawn by the fan 11 and discharged toward the wires on the upper surface of the connecting plate 18, so as to dissipate heat from the outer surface of the wires.

[0027] Specifically, the upper surface of the inner wall of the lifting frame 14 is rotatably connected to the top of the screw a15, the bottom end of the screw a15 is fixedly connected to the top of the screw b16, and the bottom end of the screw b16 passes through the bearing clamped on the lower surface of the inner wall of the lifting frame 14 and extends to the outside of the lifting frame 14;

[0028] The screw b16 and the screw a15 are rotated, and the rotation of the screw a15 and the screw b16 drives the two threaded sleeves 17 and the two connecting plates 18 to approach each other, so as to facilitate the extension and adjustment of the wires;

[0029] The thread direction of screw a15 is opposite to that of screw b16, and the number of teeth is the same.

[0030] Specifically, two connecting plates 18 are provided with a plurality of partitions 13 fixedly connected to the two sides away from each other;

[0031] The wires are separated by the partition 13 to prevent the wires from being entangled with each other and affecting subsequent maintenance.

[0032] Specifically, a plurality of heat dissipation holes 2 are symmetrically provided on the left and right sides of the box body 1;

[0033] The heat inside the box body 1 is dissipated through the heat dissipation holes 2 .

[0034] The working principle and use process of this utility model:

[0035] The utility model, when in use:

[0036] Pull the fixed plate 7 to drive the slider a5 to move in the movable frame a4, adjust the positions of the fixed plate 7, the movable frame b8 and the lifting frame 14 according to the number and position of the wires, rotate the fixed stud 6 to fix the slider a5 and the fixed plate 7, wrap the wires around the outer surfaces of the two connecting plates 18, separate the wires by the partition 13 to avoid the wires from being entangled with each other and affecting later maintenance, draw the air inside the box 1 through the fan 11 and discharge it to the wires on the upper surface of the connecting plate 18 to dissipate the heat from the outer surface of the wires, rotate the screw b16 and the screw a15, and the rotation of the screw a15 and the screw b16 drives the two threaded sleeves 17 and the two connecting plates 18 to approach each other, which is convenient for the extension adjustment of the wires.

[0037] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protection device, comprising a housing (1), characterized in that: A protection device (3) is installed on the lower surface of the inner wall of the box body (1); a movable frame a (4) is fixedly connected to the left side of the inner wall of the box body (1); the lower surface of the inner wall of the movable frame a (4) is slidably connected to the lower surfaces of two sliders a (5) respectively; the right side of the slider a (5) is fixedly connected to a fixed plate (7); the right side of the fixed plate (7) is fixedly connected to two movable frames b (8); the upper surface and the lower surface of the inner wall of the movable frame b (8) are slidably connected to the upper surface and the lower surface of a plurality of sliders b (12) respectively; the front side of the slider b (12) is fixedly connected to a lifting frame (14); the left and right side surfaces of the inner wall of the lifting frame (14) are slidably connected to the left and right side surfaces of two threaded sleeves (17) respectively; the front side of the threaded sleeve (17) is fixedly connected to a connecting plate (18).

2. A protection device according to claim 1, characterized in that: A fixing stud (6) is threadedly connected to the screw hole on the upper surface of the sliding block a (5), and the left and right side surfaces of the fixing stud (6) are respectively slidably connected to the left and right side surfaces of the inner wall of the limiting groove (9), and the limiting groove (9) is provided on the upper surface of the moving frame a (4).

3. A protection device according to claim 1, characterized in that: A mounting plate (10) is fixedly connected to the front of the lifting frame (14), a fan (11) is mounted on the upper surface of the mounting plate (10), and the position of the fan (11) corresponds to the position of the connecting plate (18).

4. A protection device according to claim 1, characterized in that: The upper surface of the inner wall of the lifting frame (14) is rotatably connected to the top end of the screw a (15), the bottom end of the screw a (15) is fixedly connected to the top end of the screw b (16), and the bottom end of the screw b (16) passes through a bearing clamped on the lower surface of the inner wall of the lifting frame (14) and extends to the outside of the lifting frame (14).

5. A protection device according to claim 1, characterized in that: A plurality of partition plates (13) are respectively fixedly connected to the surfaces of the two connecting plates (18) that are away from each other.

6. A protection device according to claim 1, characterized in that: A plurality of heat dissipation holes (2) are symmetrically provided on the left and right sides of the box body (1).

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