Direct-current molded case circuit breaker
By designing rotating rods, knobs, connecting ropes, springs and clamps in the DC plastic case circuit breaker, the convenient connection and disassembly between the front shell of the circuit breaker and the body is achieved, and the problem of inconvenient disassembly in the prior art is solved.
Patent Information
- Application Number
- CN202420447646.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-08
AI Technical Summary
Existing small circuit breakers are inconvenient to disassembly and install, making it difficult to replace and access internal components after damage.
A DC plastic shell circuit breaker is designed, and the front shell of the circuit breaker is equipped with a rotating rod, a rotating button, a connecting rope, a spring and a clamp block to facilitate connection and disassembly between the front shell of the circuit breaker and the body.
Through this design, the connection and disassembly of the circuit breaker front case and the DC circuit breaker body becomes more convenient, solving the problem of inconvenient disassembly in the prior art.
Smart Images
Figure CN222562578U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molded case circuit breakers, in particular to a DC molded case circuit breaker. Background Art
[0002] DC molded case circuit breakers have long-delay overload protection and short-circuit instantaneous protection functions. They are used to distribute electrical energy and protect lines and power equipment from overload and short circuit.
[0003] At present, the existing small circuit breakers are not convenient to disassemble and install. If they are damaged, it is not convenient to replace and repair the internal components later.
[0004] Therefore, a DC molded case circuit breaker is needed to improve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a DC molded case circuit breaker to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A DC molded case circuit breaker comprises a DC circuit breaker body, wherein a circuit breaker front shell is installed on the front of the DC circuit breaker body, front seats are arranged on the left and right sides of the circuit breaker front shell, a rotating rod is sleeved in the middle of the front of the front seat, a rotating button is arranged at the front end of the rotating rod, a plug plate is arranged on the back of the front seat, a rotating groove is provided in the middle of the front of the plug plate, grooves are provided in the middle of the upper and lower sides of the plug plate, a spring is provided inside the groove, a clamping block is provided at the outer end of the spring, a connecting rope is provided between the rotating rod and the clamping block, and fixed seats are arranged on the left and right sides of the DC circuit breaker body, a slot is provided on the front of the fixed seat, and limit holes are provided on the upper and lower sides of the fixed seat.
[0008] As a preferred solution of the utility model, the rotating rod passes through the front seat, and the rotating rod and the front seat are connected in a rotational manner.
[0009] As a preferred solution of the utility model, the rotating rod penetrates into the interior of the rotating groove, and the rotating rod and the rotating groove are connected in a rotating manner.
[0010] As a preferred solution of the utility model, the connection mode between the block and the groove is a sliding connection.
[0011] As a preferred solution of the utility model, a through hole is provided inside the plug plate and between the groove and the rotation groove, and the connection mode of the connecting rope through hole is a sliding connection.
[0012] As a preferred solution of the utility model, the connection mode between the plug board and the slot is a sliding connection.
[0013] As a preferred solution of the utility model, the connection structure between the clamping block and the limiting hole is a sliding clamping connection.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. In the utility model, the card block can be pulled back into the groove by the provided rotating rod, rotating knob and connecting rope, the provided spring can pop the card block out of the groove and insert it into the limiting hole, and the provided plug-in plate can be conveniently plugged in and out of the slot. In summary, the above design facilitates the connection and disassembly of the circuit breaker front shell and the DC circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the front seat structure of the utility model;
[0018] Figure 3 This is an exploded schematic diagram of the plug-in structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the fixing seat of the utility model;
[0020] Figure 5 This is a schematic diagram of the rotating rod structure of the utility model.
[0021] In the figure: 1. DC circuit breaker body; 2. circuit breaker front shell; 3. front seat; 4. rotating rod; 5. rotating knob; 6. plug-in plate; 7. rotating slot; 8. groove; 9. spring; 10. block; 11. connecting rope; 12. fixing seat; 13. slot; 14. limiting hole.
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0023] For examples, see Figure 1-5 , the utility model provides a technical solution:
[0024] A DC molded case circuit breaker comprises a DC circuit breaker body 1, wherein a circuit breaker front shell 2 is installed on the front of the DC circuit breaker body 1, front seats 3 are arranged on the left and right sides of the circuit breaker front shell 2, a rotating rod 4 is sleeved in the middle of the front of the front seat 3, a rotating button 5 is arranged at the front end of the rotating rod 4, a plug plate 6 is arranged on the back of the front seat 3, a rotating groove 7 is opened in the middle of the front of the plug plate 6, grooves 8 are opened in the middle of the upper and lower sides of the plug plate 6, a spring 9 is arranged inside the groove 8, a clamping block 10 is arranged at the outer end of the spring 9, a connecting rope 11 is arranged between the rotating rod 4 and the clamping block 10, and a fixing seat 12 is arranged on the left and right sides of the DC circuit breaker body 1, a slot 13 is opened on the front of the fixing seat 12, and limit holes 14 are opened on the upper and lower sides of the fixing seat 12.
[0025] In this embodiment, the rotating rod 4 passes through the front seat 3, and the rotating rod 4 is connected to the front seat 3 in a rotating manner. The rotating rod 4 passes through the interior of the rotating groove 7, and the rotating rod 4 is connected to the rotating groove 7 in a rotating manner. The block 10 is connected to the groove 8 in a sliding manner. A through hole is provided inside the plug plate 6 and between the groove 8 and the rotating groove 7, and the connection mode of the through hole of the connecting rope 11 is a sliding connection. The connection mode of the plug plate 6 and the slot 13 is a sliding connection. The connection structure of the block 10 and the limiting hole 14 is a sliding clamping connection. The block 10 can be pulled back into the groove 8 by the arranged rotating rod 4, the rotating button 5, and the connecting rope 11. The arranged spring 9 can pop the block 10 out of the groove 8 and clamp it into the limiting hole 14. The arranged plug plate 6 can be conveniently plugged in and out of the slot 13. In summary, the above design facilitates the connection and disassembly of the circuit breaker front shell 2 and the DC circuit breaker body 1.
[0026] The working process of the utility model is as follows: when installing the circuit breaker front shell 2 and the DC circuit breaker body 1, firstly, the rotating rod 4 is rotated by the rotating knob 5, at which time the connecting rope 11 will be rolled up on the rotating rod 4, at which time the card block 10 will be pulled back into the groove 8, and then the plug plate 6 will be inserted into the slot 13, and then the rotating knob 5 is released, at which time the spring 9 will pop the card block 10 out of the groove 8, and then the card block 10 will slide and snap into the limiting hole 14, at which time the installation of the circuit breaker front shell 2 and the DC circuit breaker body 1 is completed, and when disassembling, the rotating knob 5 rotates the rotating rod 4, at which time the connecting rope 11 will be rolled up on the rotating rod 4, and then the card block 10 will be pulled back into the groove 8, and then the plug plate 6 will be inserted into the slot 13, and then the rotating knob 5 is released, at which time the spring 9 will pop the card block 10 out of the groove 8, and then the card block 10 will slide and snap into the limiting hole 14, and then the installation of the circuit breaker front shell 2 and the DC circuit breaker body 1 is completed. 1 will be rolled up on the rotating rod 4, at this time the card block 10 will be pulled back into the groove 8, at this time the card block 10 will slide out of the limiting hole 14, and finally the plug plate 6 can be pulled out from the slot 13 to complete the disassembly, the rotating rod 4, the rotating button 5, and the connecting rope 11 can be used to pull the card block 10 back into the groove 8, the spring 9 can be used to pop the card block 10 out of the groove 8 and insert it into the limiting hole 14, and the plug plate 6 can be conveniently plugged in and out of the slot 13, and the above design facilitates the connection and disassembly of the circuit breaker front shell 2 and the DC circuit breaker body 1.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A DC molded case circuit breaker, comprising a DC circuit breaker body (1), characterized in that: A circuit breaker front shell (2) is mounted on the front of the DC circuit breaker body (1); front seats (3) are arranged on the left and right sides of the circuit breaker front shell (2); a rotating rod (4) is sleeved in the middle of the front of the front seat (3); a rotating button (5) is arranged at the front end of the rotating rod (4); a plug plate (6) is arranged on the back of the front seat (3); a rotating groove (7) is provided in the middle of the front of the plug plate (6); grooves (8) are provided in the middle of the upper and lower sides of the plug plate (6); a spring (9) is provided inside the groove (8); a clamping block (10) is provided at the outer end of the spring (9); a connecting rope (11) is provided between the rotating rod (4) and the clamping block (10); and fixed seats (12) are arranged on the left and right sides of the DC circuit breaker body (1); a slot (13) is provided on the front of the fixed seat (12); and limit holes (14) are provided on the upper and lower sides of the fixed seat (12).
2. A DC molded case circuit breaker according to claim 1, characterized in that: The rotating rod (4) passes through the front seat (3), and the rotating rod (4) and the front seat (3) are connected in a rotational manner.
3. A DC molded case circuit breaker according to claim 1, characterized in that: The rotating rod (4) penetrates into the interior of the rotating groove (7), and the rotating rod (4) and the rotating groove (7) are connected in a rotating manner.
4. A DC molded case circuit breaker according to claim 1, characterized in that: The block (10) and the groove (8) are connected in a sliding manner.
5. A DC molded case circuit breaker according to claim 1, characterized in that: A through hole is provided inside the plug plate (6) and between the groove (8) and the rotation groove (7), and the connection mode of the through hole of the connecting rope (11) is a sliding connection.
6. A DC molded case circuit breaker according to claim 1, characterized in that: The plug board (6) and the slot (13) are connected in a sliding manner.
7. A DC molded case circuit breaker according to claim 1, characterized in that: The connection structure between the clamping block (10) and the limiting hole (14) is a sliding clamping connection.