Mutual inductor seat for circuit breaker

Abstract

The utility model relates to a mutual inductor seat for a circuit breaker, which comprises a shell, a plurality of current transformer placing grooves are formed on one side of the shell, the current transformer placing grooves are horizontally arranged and are mutually independent, and a conductor hole penetrating through two sides of the shell is formed in the center of each current transformer placing groove. A plurality of jacks penetrating up and down are arranged between the current transformer placement grooves, the jacks penetrate through the shell of the transformer seat and are isolated from the transformer placement grooves and the conductor holes, and contact pins are arranged in the jacks, so that electric connection between the upper portion and the lower portion of the transformer seat can be achieved, and signal communication between the bottom and the upper portion of the circuit breaker is achieved. Wires between the bottom and the upper part of the circuit breaker are saved, modularization is realized, and automatic processing is facilitated.

Description

Technical Field

[0001] The utility model relates to a circuit breaker component, in particular to a mutual inductor seat used for the circuit breaker. Background Art

[0002] A current transformer for monitoring current and a zero-sequence transformer for monitoring leakage are usually provided in the circuit breaker. For the convenience of assembly, more and more transformers are installed in a transformer holder to achieve modularization. For example, the transformer holder for molded case circuit breakers disclosed in the publication (announcement) number: CN218274234U, which sets a transformer placement groove on the side of the shell and sets the transformer, achieves modular assembly of the transformer. However, this transformer holder is relatively large in size and is easily blocked when set in the circuit breaker, especially in the current intelligent circuit breaker, which needs to lead the wires from the bottom of the circuit breaker to the upper controller. Summary of the invention

[0003] In view of the above-mentioned deficiencies, the utility model provides a transformer base for a circuit breaker.

[0004] In order to achieve the above purpose, the utility model adopts a transformer seat for a circuit breaker, including a shell, a plurality of current transformer placement slots are formed on one side of the shell, the current transformer placement slots are arranged horizontally, the current transformer placement slots are independent of each other, a conductor hole penetrating through both sides of the shell is formed at the center of each current transformer placement slot, and a plurality of jacks penetrating from top to bottom are arranged between the current transformer placement slots.

[0005] The utility model is further arranged that the upper end surface of the shell forms a socket slot at the socket, and the upper end outlet of the socket is arranged in the socket slot.

[0006] The utility model is further configured such that the number of the jacks between each current transformer placement slot is 14, and the jacks are arranged in a 2*7 pattern in the jack slots.

[0007] The utility model is further configured that a zero-sequence transformer installation groove is arranged on the other side of the shell, and the zero-sequence transformer installation groove is annular and wraps all the conductor holes therein.

[0008] The utility model is further configured that positioning strips are arranged between the current transformer placement grooves.

[0009] The utility model is further configured such that the number of the current transformer placement slots is 3.

[0010] The beneficial effect of the utility model is that a socket is provided on the transformer seat, which penetrates the shell of the transformer seat and is isolated from the transformer placement groove and the conductor hole. A pin is provided in the socket to realize the electrical connection between the upper and lower parts of the transformer seat, realize the signal communication between the bottom and the upper part of the circuit breaker, save the wires between the bottom and the upper part of the circuit breaker, realize modularization, and facilitate automatic processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 It is another angle schematic diagram of a specific embodiment of the utility model.

[0013] Figure 3 It is a top view of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0014] like Figure 1 to Figure 3 As shown, a specific embodiment of the utility model is a transformer seat for a circuit breaker, comprising a housing 1, wherein three current transformer placement slots 11 are formed on one side of the housing 1, the current transformer placement slots 11 are arranged horizontally, the current transformer placement slots 11 are independent of each other, and a conductor hole 12 is formed in the center of each current transformer placement slot 11, which passes through both sides of the housing, and a zero-sequence transformer installation slot 13 is provided on the other side of the housing 1, and the zero-sequence transformer installation slot 13 is annular and wraps all the conductor holes 12 therein. Multiple jacks 14 are provided between the current transformer placement slots 11, and a jack slot 15 is formed at the jack 14 on the upper end surface 17 of the housing 1, and the upper end outlet of the jack 14 is provided in the jack slot 15. In this embodiment, the number of jacks 14 between each current transformer placement slot 11 is 14, and the jacks 14 are arranged in 2*7 in the jack slot 15, and positioning strips 16 are provided on the sides between the current transformer placement slots 11.

[0015] The number of current transformer placement slots in the utility model can also be other numbers, such as 4 used in a three-phase four-wire circuit breaker. In addition to the above embodiments, changes in the number of jacks are also within the scope of the claims of the utility model.

Claims

1. A transformer base for a circuit breaker, comprising a shell, a plurality of current transformer placement slots are formed on one side of the shell, the current transformer placement slots are arranged horizontally, the current transformer placement slots are independent of each other, and a conductor hole is formed at the center of each current transformer placement slot to pass through both sides of the shell, characterized in that: A plurality of jacks which pass through the upper and lower parts are arranged between the current transformer placement slots.

2. The transformer base for circuit breaker according to claim 1, characterized in that: The upper end surface of the shell forms a socket slot at the socket, and the upper end outlet of the socket is arranged in the socket slot.

3. The transformer base for circuit breaker according to claim 2, characterized in that: The number of the jacks between each current transformer placement slot is 14, and the jacks are arranged in 2*7 in the jack slot.

4. The transformer base for circuit breaker according to claim 1, 2 or 3, characterized in that: A zero-sequence transformer installation groove is arranged on the other side of the shell. The zero-sequence transformer installation groove is annular and wraps all the conductor holes therein.

5. The transformer base for circuit breaker according to claim 1, 2 or 3, characterized in that: Positioning strips are arranged between the current transformer placement grooves.

6. The transformer base for circuit breaker according to claim 1, 2 or 3, characterized in that: The number of the current transformer placement slots is 3.

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