Hot plug protection mechanism of 5G1U circuit breaker

Abstract

The utility model discloses a hot plug protection mechanism of a 5G1U circuit breaker, which structurally comprises a circuit breaker shell, a handle is arranged on the left side wall of the circuit breaker shell, the handle penetrates and extends into the circuit breaker shell to control opening and closing of the circuit breaker, a through hole is formed in the top of the circuit breaker shell, and a clamping fastener is movably arranged in the through hole. A clamping groove matched with the buckling piece is formed in a machine frame installed on the circuit breaker shell in a matched mode, and when the handle is switched on and switched off, the buckling piece is promoted to stretch out or retract into the through hole, so that the circuit breaker shell cannot be installed in the machine frame when switched on and cannot be pulled out of the machine frame when switched off. According to the utility model, through the cooperation between the handle and the buckle piece, the breaker body of the product cannot be installed in the machine frame when the breaker body is closed and cannot be pulled out of the machine frame when the breaker body is not opened, thereby avoiding the risk of electric shock of personnel or peripheral equipment caused by electrified pulling-out of the breaker, and improving the use safety of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, and more specifically, to a hot-swap protection mechanism for a 5G1U circuit breaker. Background Art

[0002] Circuit breakers are important switching devices in power organizations, which can close, carry and disconnect currents in circuits. With the rapid development of the 5G industry, the demand for 5G cabinets is increasing, and the plug-in circuit breakers used with them are also gaining more and more attention.

[0003] However, when the existing plug-in circuit breaker is inserted into or removed from the chassis, the circuit breaker may be in a energized state. The arc generated when the circuit breaker is pulled out while energized can easily cause the risk of electric shock to personnel or surrounding equipment, resulting in low safety of the circuit breaker and a safety hazard. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a hot-swap protection mechanism for a 5G1U circuit breaker to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot-swap protection mechanism for a 5G1U circuit breaker, comprising a circuit breaker housing, a handle is provided on the left side wall of the circuit breaker housing, the handle extends through the circuit breaker housing to control the opening and closing of the circuit breaker, a through hole is provided on the top of the circuit breaker housing, a snap-fitting piece is movably provided in the through hole, a card slot adapted to the snap-fitting piece is provided on a frame matched with the circuit breaker housing, and the snap-fitting piece is prompted to extend or retract into the through hole when the handle is opened or closed, so that the circuit breaker housing cannot be installed into the frame when closing the circuit breaker, and cannot be pulled out of the frame when opening the circuit breaker.

[0006] The utility model is further configured as follows: the handle comprises a pressing portion, a driving portion and a toggle portion; the driving portion is connected to a driving rod, and the driving rod is drivingly connected to an opening and closing mechanism inside the circuit breaker.

[0007] The utility model is further configured that: the toggle portion is formed with a toggle column matched with the buckle piece.

[0008] The utility model is further configured as follows: the buckle comprises a rotating part, a limiting part and a linkage part matched with the handle, and the buckle is rotatably arranged inside the circuit breaker housing through the rotating part.

[0009] The utility model is further configured as follows: the rotating part is formed with a pivot and a torsion spring is sleeved on the outer side of the pivot.

[0010] The utility model is further configured as follows: the limiting portion is formed into a limiting block and an inclined waist is provided on one side of the limiting block.

[0011] The utility model is further configured that: the linkage part is in a hook-shaped structure and is formed with a movable rail groove adapted to the toggle column.

[0012] In summary, the utility model has the following beneficial effects: through the cooperation between the handle and the snap-fit ​​part, the circuit breaker body of the product cannot be installed into the frame when closed, and cannot be pulled out of the frame when not opened, thereby avoiding the risk of electric shock to personnel or peripheral equipment caused by pulling out the circuit breaker with power on, and improving the safety of product use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cooperation between the handle and the buckle of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the handle of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the buckle of the utility model.

[0018] Figure numerals: 1. circuit breaker housing; 10. through hole; 2. handle; 20. pressing part; 21. driving part; 22. toggle part; 23. driving rod; 24. toggle column; 3. snap part; 30. rotating part; 31. limiting part; 32. linkage part; 33. pivot; 34. torsion spring; 35. limiting block; 36. inclined waist; 37. movable rail groove. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1-4As shown, a hot-swap protection mechanism of a 5G1U circuit breaker of an embodiment of the utility model includes a circuit breaker housing 1, a handle 2 is provided on the left side wall of the circuit breaker housing 1, the handle 2 extends through the circuit breaker housing 1 to control the opening and closing of the circuit breaker, a through hole 10 is provided on the top of the circuit breaker housing 1, a latch 3 is movably provided in the through hole 10, a card slot adapted to the latch 3 is provided on the frame matched with the circuit breaker housing 1, and the handle 2 causes the latch 3 to extend or retract into the through hole 10 when opening and closing, so that the circuit breaker housing 1 cannot be installed in the frame when closing, and cannot be pulled out of the frame when opening.

[0021] When in use, the opening and closing of the circuit breaker is controlled by pushing or pulling out the handle 2. Specifically, when closing the circuit breaker, the handle 2 is pushed inward along the through hole 10 toward the circuit breaker housing 1. The handle 2 is pushed inward to cause the latch 3 to extend out of the through hole 10. When the latch 3 is extended, it forms a limit clamp with the slot provided in the frame to limit the circuit breaker housing 1 in the frame. Therefore, the product cannot be pulled out of the frame when not in the opening state. Similarly, when closing the circuit breaker, the circuit breaker housing 1 cannot be installed in the frame.

[0022] The utility model cooperates between the handle 2 and the latch 3 so that the circuit breaker body of the product cannot be installed into the frame when it is closed and cannot be pulled out of the frame when it is not opened, thereby avoiding the risk of electric shock to personnel or peripheral equipment caused by pulling out the circuit breaker with power on, and improving the safety of product use.

[0023] The handle 2 includes a pressing portion 20 , a driving portion 21 and a toggle portion 22 . The driving portion 21 is connected to a driving rod 23 which is drivingly connected to the opening and closing mechanism inside the circuit breaker. The toggle portion 22 is formed with a toggle column 24 which cooperates with the latch 3 .

[0024] When in use, the handle 2 is pushed in or pulled out by the pressing part 20, and the handle 2 drives the driving rod 23 to move through the driving part 21, and the driving rod 23 is connected to the opening and closing mechanism inside the circuit breaker to realize opening and closing;

[0025] The handle 2 moves and the cooperation between the toggle portion 22 and the buckle causes the limit block 35 to extend or retract into the through hole 10 .

[0026] The latch 3 includes a rotating part 30, a limiting part 31 and a linkage part 32 that cooperates with the handle 2. The latch 3 is rotatably arranged inside the circuit breaker housing 1 through the rotating part 30; the rotating part 30 is formed with a pivot 33 and a torsion spring 34 is sleeved on the outer side of the pivot 33; the limiting part 31 is formed with a limiting block 35 and a slanted waist 36 is opened on one side of the limiting block 35; the linkage part 32 is a hook-shaped structure and is formed with a movable rail groove 37 that is adapted to the toggle column 24.

[0027] When in use, the latch 3 is rotatably disposed in the circuit breaker housing 1 via the pivot 33, and a torsion spring 34 is disposed on the outer sleeve of the pivot 33. In the initial state, the torsion spring 34 forces the latch 3 to maintain a locked state, i.e., the limit block 35 extends out of the through hole 10;

[0028] When the circuit breaker is closed, the handle 2 is pushed inward, and the handle 2 drives the toggle column 24 to move. The toggle column 24 is guided by the movable rail groove 37 to cause the latch 3 to rotate clockwise around the pivot 33 until the limit block 35 extends out of the through hole 10, wherein the toggle portion 22 is formed with a first waist and the limit portion 31 is formed below a second waist. When the limit block 35 extends out of the through hole 10, the first waist and the second waist abut against each other, so that the limit block 35 is stably maintained in the extended state and the toggle portion 22 and the limit portion 31 are prevented from getting stuck;

[0029] When opening the gate, the handle 2 is pulled outward, and the toggle column 24 contacts the hook end of the linkage part 32 through the guidance of the track. At this time, the buckle 3 rotates counterclockwise around the pivot 33 to overcome the force of the torsion spring 34 until the limit block 35 retracts into the through hole 10.

[0030] It should also be pointed out that the terms used in the present invention, such as “front”, “rear”, “vertical”, “horizontal”, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A hot-swap protection mechanism for a 5G1U circuit breaker, comprising a circuit breaker housing (1), characterized in that: The left side wall of the circuit breaker housing (1) is provided with a handle (2), the handle (2) extending through the circuit breaker housing (1) to control the opening and closing of the circuit breaker, the top of the circuit breaker housing (1) is provided with a through hole (10), a latch (3) is movably provided in the through hole (10), a slot adapted to the latch (3) is provided on a frame matched with the circuit breaker housing (1), and the handle (2) causes the latch (3) to extend or retract into the through hole (10) when opening and closing, so that the circuit breaker housing (1) cannot be installed in the frame when closing, and cannot be pulled out of the frame when opening.

2. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 1, characterized in that: The handle (2) comprises a pressing portion (20), a driving portion (21) and a toggle portion (22); the driving portion (21) is connected to a driving rod (23), and the driving rod (23) is drivingly connected to an opening and closing mechanism inside the circuit breaker.

3. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 2, characterized in that: The toggle portion (22) is formed with a toggle column (24) that cooperates with the buckle (3).

4. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 1, characterized in that: The latch (3) comprises a rotating portion (30), a limiting portion (31) and a linkage portion (32) that cooperates with the handle (2); the latch (3) is rotatably arranged inside the circuit breaker housing (1) via the rotating portion (30).

5. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 4, characterized in that: The rotating part (30) is formed with a pivot (33), and a torsion spring (34) is sleeved on the outer side of the pivot (33).

6. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 4, characterized in that: The limiting portion (31) is formed into a limiting block (35), and a slanted waist (36) is provided on one side of the limiting block (35).

7. The hot-swap protection mechanism of the 5G1U circuit breaker according to claim 4, characterized in that: The linkage portion (32) is a hook-shaped structure and is formed with a movable rail groove (37) adapted to the toggle column (24).

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