Molded case circuit breaker shell convenient to disassemble and assemble
A technology for molded case circuit breakers and casings, which is applied to circuits, emergency protection devices, and parts of protective switches. Improved convenience, reduced disassembly time, and improved service life
Inactive Publication Date: 2021-03-12
芜湖君乐电器有限公司
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Problems solved by technology
[0003] Existing molded case circuit breakers all include a base and an upper cover. Various components are installed in the base, and the components installed in the base are sealed by cooperation with the upper cover. The upper cover and the base are connected by multiple screws. The way of screw connection is time-consuming and labor-intensive no matter it is installed or disassembled, and the long-term torsion will cause the thread groove to slip, which will make the upper cover and base unable to be opened, thus reducing the overall service life
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] The present invention provides such as Figure 1-5 The housing of a molded case circuit breaker that is easy to disassemble as shown includes a first sealing case 1, and a first placement groove is opened on the first sealing case 1. The cross-sectional shape of the first placement groove is rectangular, which is convenient for the pillar 3 and For fixed installation, four pillars 3 are fixedly connected in a rectangular array on one side of the first p...
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The invention discloses a molded case circuit breaker shell convenient to disassemble and assemble, which comprises a first sealing shell, a first placement groove is formed in the first sealing shell, four supporting columns are arranged on the inner wall of one side of the first placement groove, a second sealing shell is arranged on the supporting columns, four mounting blocks are arranged on the front surface of the second sealing shell, and first limiting rods are arranged on the mounting blocks and the supporting columns. Connecting rods are arranged at one ends of the first limiting rods, limiting grooves are formed in the tops of the supporting columns, first springs are arranged on the inner walls of the two sides of the limiting grooves, a first protruding block is arranged at one end of each first spring, and clamping grooves are symmetrically formed in the connecting rods. Through cooperation of the first sealing shell, the second sealing shell, the supporting columns, themounting blocks, the first limiting rods, the connecting rods, the limiting grooves, the first springs, the first protruding blocks and the clamping grooves, the convenience of mounting and dismounting of the first sealing shell and the second sealing shell is improved, the dismounting time is shortened, overall damage is avoided, and therefore the overall service life is prolonged.
Description
technical field [0001] The invention relates to the field of circuit breaker housings, in particular to a molded case circuit breaker housing that is easy to assemble and disassemble. Background technique [0002] Plastic case circuit breakers are generally used for power distribution and can also be used to protect motors. Under normal circumstances, circuit breakers can be used for infrequent switching of lines and infrequent starting of motors. Circuit breakers for power distribution are used in It is used to distribute electric energy in the power distribution network and is used as overload, short circuit and undervoltage protection for lines and power supply equipment, circuit breakers for protecting motors, used for starting and breaking of squirrel cage motors in power distribution networks and as mouse type motors Generally, a molded case circuit breaker is a circuit breaker obtained by integrally assembling the opening / closing mechanism, tripping device, etc. int...
Claims
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IPC IPC(8): H01H71/02H01H9/04
CPCH01H9/04H01H71/02
Inventor 王耀
Owner 芜湖君乐电器有限公司