阅读说明：本技术 一种断路器***式触头装置 (Plug-in contact device of circuit breaker ) 是由 邓益飞 陈建红 顾建青 于 2019-12-24 设计创作，主要内容包括：一种断路器插入式触头装置,属于低压电器技术领域。包括一对紧固件、插柱、插座、弹簧和接触片,两紧固件将插柱和插座分别固定在断路器连接板上和插入式插座连接板上,所述的接触片组成环状包裹在所述插座的外圆周面上,所述的弹簧套设在接触片组成的环状外侧将接触片箍紧在插座上,并在接触片的上方留有供插柱插入的开口,特点是：所述的两紧固件、插柱和插座内分别开设有第一散热孔、第二散热孔、第三散热孔,当插柱插入开口内与插座电连接时,所述第一散热孔、第二散热孔、第三散热孔形成一上下贯通的散热通道。优点：既有效的降低了触头装置的温升,又降低了制造成本,具有较高的性价比和实用价值。(A plug-in contact device of a circuit breaker belongs to the technical field of low-voltage electrical appliances. Including a pair of fastener, insert post, socket, spring and contact piece, two fasteners will be inserted the post and the socket is fixed respectively on the circuit breaker connecting plate and on the bayonet socket connecting plate, the contact piece constitute cyclic annular parcel and be in on the outer periphery of socket, the spring housing establish the cyclic annular outside that the contact piece is constituteed with the contact piece cramp on the socket to leave the confession and insert post male opening in the top of contact piece, the characteristics are: the two fasteners, the inserting column and the socket are respectively provided with a first heat dissipation hole, a second heat dissipation hole and a third heat dissipation hole, and when the inserting column is inserted into the opening and is electrically connected with the socket, the first heat dissipation hole, the second heat dissipation hole and the third heat dissipation hole form a heat dissipation channel which is communicated up and down. The advantages are that: the temperature rise of the contact device is effectively reduced, the manufacturing cost is reduced, and the contact device has higher cost performance and practical value.)

1. The utility model provides a plug-in contact device of circuit breaker, includes a pair of fastener (2), inserts post (3), socket (4), spring (6) and contact piece (7), two fastener (2) will insert post (3) and socket (4) and fix respectively on circuit breaker connecting plate (1) and on bayonet socket connecting plate (5), contact piece (7) constitute annular parcel and be in on the outer periphery of socket (4), spring (6) cover establish the annular outside that contact piece (7) are constituteed with contact piece (7) cramp on socket (4) to leave confession and insert post (3) male opening (71), its characterized in that in the top of contact piece (7): the two fasteners (2), the plug post (3) and the socket (4) are respectively provided with a first heat dissipation hole (21), a second heat dissipation hole (31) and a third heat dissipation hole (41), and when the plug post (3) is inserted into the opening (71) and is electrically connected with the socket (4), the first heat dissipation hole (21), the second heat dissipation hole (31) and the third heat dissipation hole (41) form a heat dissipation channel which is communicated up and down.

2. A plug-in contact arrangement for a circuit breaker according to claim 1, characterized in that the number of contact pieces (7) is two or more.

3. A plug-in contact arrangement for a circuit breaker according to claim 2, characterized in that the number of contact pieces (7) is six.

4. A plug-in contact arrangement for a circuit breaker according to claim 1, characterized in that the structure of the contact piece (7) is wave-shaped and of vertically symmetrical design.

5. A plug-in contact device of a circuit breaker according to claim 4, characterized in that the outer sides of the two ends of the contact piece (7) are provided with inwardly recessed arc grooves (72), and the spring (6) is sleeved on the arc grooves (72) of the contact piece (7).

6. A plug-in contact arrangement for a circuit breaker according to claim 5, characterized in that the outer circumferential surface of the socket (4) is provided with a socket recess (42), and the arc-shaped recess (72) at the end of the contact piece (7) cooperates with the socket recess (42) in the outer circumferential surface of the socket (4).

7. The plug-in contact device of circuit breaker according to claim 1, characterized in that the fastening member (2) has external threads, and the second heat dissipation hole (31) of the plug post (3) and the third heat dissipation hole (41) of the socket (4) have internal threads, wherein the external threads of a fastening member (2) pass through the circuit breaker connection board (1) and then fix the plug post (3) on the circuit breaker connection board (1) when being screwed with the internal threads of the plug post (3); and when the external thread of the other fastener (2) penetrates through the plug-in socket connecting plate (5) and then is screwed with the internal thread of the socket (4), the socket (4) is fixed on the plug-in socket connecting plate (5).

8. A circuit breaker plug-in contact arrangement as claimed in claim 1, characterized in that the fastening element (2) is made of an aluminum material with a heat-dissipating function.

Technical Field

The invention belongs to the technical field of low-voltage electrical appliances, and particularly relates to a plug-in contact device of a circuit breaker.

Background

At present, plug-in contact devices of plastic shell type circuit breakers mostly adopt plug posts and sockets, contact pieces are uniformly distributed in a certain number of rings around the sockets, the upper end of each contact piece is in contact with the plug posts, the lower end of each contact piece is in contact with the sockets, the plug posts are fixed on a circuit breaker body, and the sockets are fixed on plug-in bases. Thus, the contact arrangement serves to connect the circuit breaker body with the plug-in base. However, the plug-in contact arrangement with this construction has the following problems: the existing plug-in contact device generally brings higher temperature rise, influences the overload action characteristic of the circuit breaker and limits the use of the circuit breaker. To solve the problem, the common solution in the prior art is to reduce the capacity of the rated current of the circuit breaker, and the method has great influence on users and lower practicability.

In view of the above-mentioned prior art, there is a need for a reasonable improvement in the structure of the prior art circuit breaker plug-in contact arrangement. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

Disclosure of Invention

The invention aims to provide a plug-in contact device of a circuit breaker, which is provided with a heat dissipation channel, so that the temperature rise of the contact device is effectively reduced, the manufacturing cost is reduced, and the plug-in contact device has higher cost performance and practical value.

The invention is to accomplish the task in such a way that a circuit breaker plug-in contact device comprises a pair of fasteners, a plug post, a socket, a spring and a contact piece, wherein the plug post and the socket are respectively fixed on a circuit breaker connecting plate and a plug-in socket connecting plate by the two fasteners, the contact piece is annularly wrapped on the outer circumferential surface of the socket, the spring is sleeved on the annular outer side of the contact piece to clamp the contact piece on the socket, and an opening for inserting the plug post is reserved above the contact piece, and the circuit breaker plug-in contact device is characterized in that: the two fasteners, the inserting column and the socket are respectively provided with a first heat dissipation hole, a second heat dissipation hole and a third heat dissipation hole, and when the inserting column is inserted into the opening and is electrically connected with the socket, the first heat dissipation hole, the second heat dissipation hole and the third heat dissipation hole form a heat dissipation channel which is communicated up and down.

In a specific embodiment of the present invention, the number of the contact sheets is two or more.

In another specific embodiment of the present invention, the number of the contact pieces is six.

In a further embodiment of the invention, the structure of the contact plate is wave-shaped and is designed to be symmetrical up and down.

In a further specific embodiment of the present invention, the outer sides of the two ends of the contact piece are provided with inwardly recessed arc grooves, and the spring is sleeved on the arc grooves of the contact piece.

In another specific embodiment of the present invention, the socket groove is formed on the outer circumferential surface of the socket, and the arc groove at one end of the contact piece is matched with the socket groove on the outer circumferential surface of the socket.

In a further specific embodiment of the present invention, the fastening member has an external thread, and the second heat dissipating hole of the plug post and the third heat dissipating hole of the socket have an internal thread, wherein when the external thread of one fastening member passes through the breaker connecting plate and is screwed with the internal thread of the plug post, the plug post is fixed on the breaker connecting plate; and when the external thread of the other fastener penetrates through the plug-in socket connecting plate and is screwed with the internal thread of the socket, the socket is fixed on the plug-in socket connecting plate.

In a more specific embodiment of the present invention, the fastening member is made of aluminum material with heat dissipation function.

Due to the adoption of the structure, the invention has the beneficial effects that: through at the fastener, insert the inside louvre that sets up of post and socket, when inserting the post and being connected with the socket electricity in the contact chip, this structure produces a heat dissipation channel who link up from top to bottom, and during the air admission heat dissipation channel, effectively taken away the produced heat of contact device, increased the heat radiating area of device, the effectual temperature rise that has reduced manufacturing cost simultaneously, has higher price/performance ratio and practical value.

Drawings

Fig. 1 is a perspective view of a plug-in contact arrangement of a circuit breaker according to the invention.

Fig. 2 is a schematic structural diagram of a plug-in contact device of a circuit breaker according to the present invention.

Fig. 3 is a schematic structural view of the plug-in post of the plug-in contact device of the circuit breaker inserted into the contact piece according to the invention.

Fig. 4 is a schematic structural view of the plug-in post of the plug-in contact device of the circuit breaker of the invention after being separated from the contact piece.

In the figure: 1. a circuit breaker connection plate; 2. a fastener 21, a first heat dissipation hole; 3. inserting columns, 31, second heat dissipation holes; 4. the socket, 41, the third heat dissipation hole, 42, the socket groove; 5. a plug-in socket connection plate; 6. a spring; 7. contact piece, 71, opening, 72, arc groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be described with reference to the accompanying drawings, but the description of the embodiments by the applicant is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be regarded as the protection scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position shown in fig. 1, and thus should not be construed as particularly limiting the technical solution provided by the present invention.

Referring to fig. 1 to 4, the present invention relates to a plug-in contact device for a circuit breaker, which includes a pair of fastening members 2, a plug 3, a socket 4, a spring 6 and a contact piece 7, wherein the two fastening members 2 fix the plug 3 and the socket 4 on a circuit breaker connection board 1 and a plug-in socket connection board 5, respectively. The contact sheet 7 has two or more, and in this embodiment, six contact sheets 7 are preferred. Each contact piece 7 is in a wave shape and is designed to be symmetrical up and down, and specifically, the outer sides of the upper end and the lower end of each contact piece are provided with inward-concave arc grooves 72. The two or more contact pieces 7 form a ring shape and are wrapped on the outer circumferential surface of the socket 4, and the arc groove 72 corresponds to the socket groove 42 on the outer circumferential surface of the socket 4. The spring 6 is sleeved on the arc groove 72 of the contact piece 7, tightly hoops the contact piece 7 on the socket 4, and an opening 71 for inserting the plug post 3 is reserved above the contact piece 7. The fastener 2, the plug post 3 and the socket 4 are respectively provided with a first heat dissipation hole 21, a second heat dissipation hole 31 and a third heat dissipation hole 41, when the plug post 3 is inserted into the opening 71 and electrically connected with the socket 4, the first heat dissipation hole 21, the second heat dissipation hole 31 and the third heat dissipation hole 41 form a heat dissipation channel which is communicated up and down.

Referring to fig. 1 to 4, the fastening member 2 of the present invention has external threads, and the second heat dissipating hole 31 of the post 3 and the third heat dissipating hole 41 of the socket 4 have internal threads, wherein when the external threads of one fastening member 2 pass through the gasket and the breaker connecting plate 1 and then are screwed with the internal threads of the post 3, the post 3 is fixed on the breaker connecting plate 1; and the external thread of the other fastener 2 is screwed with the internal thread of the socket 4 after passing through the washer and the plug-in socket connecting plate 5, so that the socket 4 is fixed on the plug-in socket connecting plate 5. The fastening piece 2 is preferably made of aluminum material with heat dissipation function.