Alternating-current and direct-current high-voltage grade molded case circuit breaker

Abstract

The utility model relates to the technical field of electrical engineering, and discloses an AC / DC high-voltage grade molded case circuit breaker, which comprises a clamping assembly, a clamping piece, a clamping frame, an insertion plate and an insertion rod, the insertion plate is arranged on one side of the clamping frame, the insertion rod is arranged at the bottom of the insertion plate, and a limiting assembly is arranged on the insertion plate and comprises a limiting piece. Comprising a ratchet wheel, a pawl and a positioning column, the ratchet wheel is arranged on the insertion plate, the pawl is located on one side of the ratchet wheel, the pawl is meshed with the ratchet wheel, and the positioning column is connected to one side of the pawl in an inserted mode. The beneficial effects of the utility model are that the circuit breaker and the housing can be rapidly disassembled and assembled, and a technician can rapidly open the housing and rapidly disassemble the housing, so that detection and repair can be carried out in time, the downtime of equipment is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to an AC / DC high-voltage molded case circuit breaker. Background Technology

[0002] AC / DC high-voltage molded case circuit breakers are protective electrical devices used in AC and DC high-voltage circuits. During the maintenance, repair, or start-up and shutdown of power systems, operators can manually control the closing and opening of the circuit breaker through the operating mechanism. In substations, workers can operate the molded case circuit breaker to control the power supply of a specific high-voltage line to a specific area, facilitating equipment maintenance, replacement, and other work. The circuit breaker is usually equipped with an outer casing to protect the electrical components inside. The circuit breaker casing is typically installed using bolts. Installing the circuit breaker casing with bolts means that each bolt needs to be tightened or loosened individually, which is a tedious process, especially when frequent maintenance or inspection is required. Each disassembly and reassembly takes a lot of time to operate the bolts, which greatly reduces work efficiency. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing AC / DC high-voltage molded case circuit breakers, this utility model is proposed.

[0005] Therefore, the problem that this utility model aims to solve is that installing the circuit breaker housing with bolts requires tightening or loosening each bolt individually, which is a rather cumbersome process.

[0006] To solve the above technical problems, this utility model provides the following technical solution: an AC / DC high voltage molded case circuit breaker, which includes a locking assembly, including a locking component, including a locking frame, a plug plate and a plug rod, wherein the plug plate is disposed on one side of the locking frame and the plug rod is disposed at the bottom of the plug plate;

[0007] A limiting component is disposed on the insert plate and includes a limiting member, including a ratchet, a pawl, and a positioning pin. The ratchet is disposed on the insert plate, the pawl is located on one side of the ratchet, the pawl and the ratchet are engaged, and the positioning pin is inserted into one side of the pawl.

[0008] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, the engaging assembly further includes a positioning element disposed on the insert plate, a connecting block fixed at the bottom of the insert plate, and the connecting block fixed at one end of the insert rod.

[0009] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a first spring is provided at one end of the insertion rod, and a positioning disc is fixed at one end of the first spring.

[0010] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a rack is fixed to the top of the insert plate, a gear is provided on the top of the rack, the rack and the gear mesh, and the ratchet is fixed to one side of the gear.

[0011] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, the limiting component further includes a movable part disposed on the pawl, and a torsion spring is fixed on one side of the pawl.

[0012] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a movable plate is fixed on one side of the ratchet, and a pressing plate is provided on the top of the movable plate.

[0013] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a rotating bar is fixed on one side of the extrusion plate, and a lever is sleeved on the outer side of the rotating bar.

[0014] In a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a second spring is fixed to the bottom of the dial plate.

[0015] As a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, it further includes a main body assembly disposed on the dial plate, comprising a circuit breaker body and a housing, wherein the housing is sleeved on the outside of the dial plate and the circuit breaker body is disposed on one side of the housing.

[0016] As a preferred embodiment of the AC / DC high-voltage molded case circuit breaker of this utility model, a switch is provided on one side of the circuit breaker body.

[0017] The advantages of this utility model are: the circuit breaker and the casing can be quickly disassembled and assembled, and technicians can open and remove the casing more quickly, so as to carry out timely inspection and repair, reduce equipment downtime, and improve work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a structural diagram of a molded case circuit breaker with AC / DC high voltage rating.

[0020] Figure 2 This is a cross-sectional view of an AC / DC high-voltage molded case circuit breaker.

[0021] Figure 3 This is a diagram of the switch structure for a high-voltage AC / DC molded case circuit breaker.

[0022] Figure 4 This is a diagram of the gear structure of a molded case circuit breaker with AC / DC high voltage rating.

[0023] Figure 5 AC / DC high voltage molded case circuit breakers Figure 4 Enlarged view of the structure at point A in the middle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figures 2-5 This is the first embodiment of the present invention. This embodiment provides an AC / DC high voltage molded case circuit breaker. The AC / DC high voltage molded case circuit breaker includes a locking assembly 200, a limiting assembly 300, and a main body assembly 100. The three components work together to enable the circuit breaker and the housing to be quickly assembled and disassembled.

[0029] The latching assembly 200 includes a latching member 201, which includes a latching frame 201a, an insert plate 201b, and an insert rod 201c. The insert plate 201b is disposed on one side of the latching frame 201a, and the insert rod 201c is disposed at the bottom of the insert plate 201b.

[0030] The locking assembly 200 consists of two sets, respectively located on both sides of the housing 102. The locking frame 201a is fixed to one side of the circuit breaker body 101. On one side of the housing 102, there are locking slots and positioning slots corresponding to the locking frame 201a and the insertion rod 201c. When it is necessary to install the circuit breaker body 101 and the housing 102, the locking frame 201a is inserted into the locking slot, and the insertion rod 201c is also inserted into the positioning slot. The insertion plate 201b is then inserted into one side of the housing 102, thereby completing the installation of the circuit breaker body 101 and the housing 102.

[0031] The limiting component 300 is disposed on the insert plate 201b and includes a limiting member 301, including a ratchet 301a, a pawl 301b and a positioning pin 301c. The ratchet 301a is disposed on the insert plate 201b, the pawl 301b is located on one side of the ratchet 301a, the pawl 301b and the ratchet 301a are engaged, and the positioning pin 301c is inserted into one side of the pawl 301b.

[0032] Two sets of limiting components 300 are set on the engaging component 200. When the circuit breaker body 101 is engaged with the housing 102, the ratchet 301a will rotate. After installation, the ratchet 301b can limit the ratchet 301a to prevent it from reversing. This prevents the circuit breaker body 101 from falling off the housing 102. The positioning pin 301c is rotatably connected to the housing 102 via a rotating shaft. When it is necessary to separate the circuit breaker body 101 from the housing 102, the ratchet 301b is moved to separate it from the ratchet 301a, thereby releasing the limiting of the circuit breaker body 101 from the housing 102. The positioning pin 301c can limit the ratchet 301b to prevent it from shifting.

[0033] Example 2

[0034] Reference Figures 2-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the locking assembly 200 also includes a positioning element 202, which is disposed on the insert plate 201b. A connecting block 202a is fixed to the bottom of the insert plate 201b, and the connecting block 202a is fixed to one end of the insert rod 201c.

[0036] When the insert plate 201b is inserted into one side of the housing 102, the insert plate 201b will drive the connecting block 202a to move. The movement of the connecting block 202a will drive the insert rod 201c to be inserted into the positioning groove.

[0037] Specifically, a first spring 202b is provided at one end of the insertion rod 201c, and a positioning plate 202c is fixed at one end of the first spring 202b.

[0038] When the insertion rod 201c is inserted into the positioning slot, a compressive force can be applied to the first spring 202b. When it is necessary to separate the circuit breaker body 101 from the outer casing 102, the rebound force of the first spring 202b can drive the two to separate. The positioning plate 202c is fixed to the inner wall of the outer casing 102. The positioning plate 202c can support the first spring 202b and prevent the first spring 202b from shifting.

[0039] Specifically, a rack 202d is fixed to the top of the insert plate 201b, and a gear 202e is provided on the top of the rack 202d. The rack 202d and the gear 202e mesh, and the ratchet 301a is fixed to one side of the gear 202e.

[0040] The gear 202e is rotatably connected to one side of the housing 102 via a rotating shaft. When the insert plate 201b is inserted into the housing 102, it will drive the rack 202d to move. At this time, the rack 202d will drive the gear 202e to rotate. The rotation of the gear 202e will drive the ratchet 301a to rotate. The ratchet 301b can limit the ratchet 301a, thereby preventing the gear 202e from reversing, and thus preventing the circuit breaker body 101 from separating from the housing 102.

[0041] Specifically, the limiting component 300 also includes a movable component 302, which is disposed on the pawl 301b, and a torsion spring 302a is fixed on one side of the pawl 301b.

[0042] The torsion spring 302a is fixed to one side of the housing 102. When the pawl 301b moves and separates from the ratchet 301a, a torsional force can be applied to the torsion spring 302a. When the pawl 301b is released, the force of the torsion spring 302a can drive the pawl 301b back to its original position for the next use.

[0043] Specifically, a movable plate 302b is fixed to one side of the pawl 301b, and a pressing plate 302c is provided on the top of the movable plate 302b.

[0044] By moving the pressing plate 302c, the top of the moving plate 302b can be pressed. Pressing the moving plate 302b can cause it to move, and the movement of the moving plate 302b can drive the pawl 301b to move and separate from the ratchet 301a.

[0045] Specifically, a rotating bar 302d is fixed on one side of the extrusion plate 302c, and a lever plate 302e is sleeved on the outside of the rotating bar 302d.

[0046] The rotating bar 302d is inserted into the housing 102. The rotating bar 302d and the housing 102 are rotatably connected by a rotating shaft. The rotating bar 302d can be rotated by the paddle plate 302e. The rotation of the rotating bar 302d can drive the pressing plate 302c to press the top of the moving plate 302b.

[0047] Example 3

[0048] Reference Figures 1-5 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0049] Specifically, a second spring 302f is fixed to the bottom of the lever 302e.

[0050] The second spring 302f is fixed inside the outer casing 102. When the lever 302e is turned, a pulling force can be applied to the second spring 302f. When the lever 302e is released, the rebound force of the second spring 302f can drive the lever 302e back to its original position.

[0051] Specifically, it also includes a main component 100, which is disposed on the toggle plate 302e, including a circuit breaker body 101 and a housing 102. The housing 102 is sleeved on the outside of the toggle plate 302e, and the circuit breaker body 101 is disposed on one side of the housing 102.

[0052] The circuit breaker body 101 is a protective electrical appliance used in AC and DC high voltage circuits. Operators can control the power supply of a high voltage line to a specific area by operating the circuit breaker body 101, which facilitates the maintenance, replacement and other work of the equipment. The outer casing 102 is used to protect the electrical components inside the circuit breaker body 101.

[0053] Specifically, a switch 103 is installed on one side of the circuit breaker body 101.

[0054] Switch 103 is used to manually control the on / off state of the circuit connected to the circuit breaker body 101.

[0055] In use, by inserting the card frame 201a into the card slot, the insertion rod 201c will also be inserted into the positioning slot, and the insertion plate 201b will be inserted into one side of the outer casing 102. When the insertion plate 201b is inserted into one side of the outer casing 102, the insertion plate 201b will drive the connecting block 202a to move. The movement of the connecting block 202a will drive the insertion rod 201c to be inserted into the positioning slot. When the insertion rod 201c is inserted into the positioning slot, it can apply a compressive force to the first spring 202b. When the insert plate 201b is inserted into the housing 102, it will drive the rack 202d to move. At this time, the rack 202d will drive the gear 202e to rotate. The rotation of the gear 202e will drive the ratchet 301a to rotate. The ratchet 301b can limit the ratchet 301a, thereby preventing the gear 202e from reversing, and thus preventing the circuit breaker body 101 from separating from the housing 102. At this time, the installation of the circuit breaker body 101 and the housing 102 is completed.

[0056] When it is necessary to separate the circuit breaker body 101 from the outer casing 102, firstly, moving the toggle plate 302e will cause the rotating bar 302d to rotate. The rotation of the rotating bar 302d will cause the pressing plate 302c to press against the top of the moving plate 302b. When the toggle plate 302e is moved, it will apply a pulling force to the second spring 302f, which will press against the moving plate 302b, thus causing the moving plate 302b to move. The movement of the moving plate 302b will cause the pawl 301b to move and separate from the ratchet 301a, thereby releasing the limit on the gear 202e. When the pawl 301b moves and separates from the ratchet 301a, it can apply a torsional force to the torsion spring 302a. Then, the force of the first spring 202b returning can drive the circuit breaker body 101 to separate from the housing 102. After removal, the lever 302e is released, and the force of the second spring 302f returning can drive the lever 302e to return to its original position. At this time, the pressing plate 302c releases the pressure on the moving plate 302b, and then the force of the torsion spring 302a rotating can drive the pawl 301b to return to its original position and re-engage with the ratchet 301a for the next use.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A molded case circuit breaker with AC / DC high voltage rating, characterized in that: include, The latching assembly (200) includes a latching member (201), which includes a latching frame (201a), an insert plate (201b), and an insert rod (201c). The insert plate (201b) is disposed on one side of the latching frame (201a), and the insert rod (201c) is disposed at the bottom of the insert plate (201b). A limiting component (300) is disposed on the insert plate (201b) and includes a limiting member (301), including a ratchet (301a), a pawl (301b) and a positioning pin (301c). The ratchet (301a) is disposed on the insert plate (201b), the pawl (301b) is located on one side of the ratchet (301a), the pawl (301b) and the ratchet (301a) are engaged, and the positioning pin (301c) is inserted into one side of the pawl (301b).

2. The AC / DC high-voltage molded case circuit breaker as described in claim 1, characterized in that: The engaging assembly (200) also includes a positioning element (202) disposed on the insert plate (201b), and a connecting block (202a) is fixed to the bottom of the insert plate (201b), and the connecting block (202a) is fixed to one end of the insert rod (201c).

3. The AC / DC high-voltage molded case circuit breaker as described in claim 2, characterized in that: One end of the insertion rod (201c) is provided with a first spring (202b), and one end of the first spring (202b) is fixed with a positioning plate (202c).

4. The AC / DC high-voltage molded case circuit breaker as described in claim 3, characterized in that: A rack (202d) is fixed to the top of the insert plate (201b), and a gear (202e) is provided on the top of the rack (202d). The rack (202d) and the gear (202e) mesh, and the ratchet (301a) is fixed to one side of the gear (202e).

5. The AC / DC high-voltage molded case circuit breaker as described in claim 3 or 4, characterized in that: The limiting component (300) also includes a movable component (302) disposed on the pawl (301b), and a torsion spring (302a) is fixed on one side of the pawl (301b).

6. The AC / DC high-voltage molded case circuit breaker as described in claim 5, characterized in that: A movable plate (302b) is fixed to one side of the pawl (301b), and a pressing plate (302c) is provided on the top of the movable plate (302b).

7. The AC / DC high-voltage molded case circuit breaker as described in claim 6, characterized in that: A rotating bar (302d) is fixed on one side of the extrusion plate (302c), and a lever plate (302e) is sleeved on the outside of the rotating bar (302d).

8. The AC / DC high-voltage molded case circuit breaker as described in claim 7, characterized in that: A second spring (302f) is fixed to the bottom of the dial plate (302e).

9. The AC / DC high-voltage molded case circuit breaker as described in claim 7 or 8, characterized in that: It also includes a main body component (100) disposed on the dial plate (302e), including a circuit breaker body (101) and a housing (102), the housing (102) being sleeved on the outside of the dial plate (302e), and the circuit breaker body (101) being disposed on one side of the housing (102).

10. The AC / DC high-voltage molded case circuit breaker as described in claim 9, characterized in that: A switch (103) is provided on one side of the circuit breaker body (101).

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