CN202153500U

CN202153500U - Coil rack of electromagnetic relay

Info

Publication number: CN202153500U
Application number: CN2011202937932U
Authority: CN
Inventors: 杨晓厦; 孙文录
Original assignee: Ningbo Forward Relay Corp Ltd
Current assignee: Ningbo Forward Relay Corp Ltd
Priority date: 2011-08-10
Filing date: 2011-08-10
Publication date: 2012-02-29
Anticipated expiration: 2021-08-10

Abstract

A coil rack of an electromagnetic relay comprises a hollowed cylindrical coiling area, a first flange and a second flange, wherein the first flange and the second flange are arranged at two ends of the cylindrical coiling area, and the first flange or the second flange is provided with through holes for receiving insertion of terminal pins. The coil rack is characterized in that an inner side surface of the first flange or the second flange is provided with steps arranged at the through holes, and height of each step is larger than height of a bended inner end of each terminal pin bended. By the height of the step, terminal pins can be inserted in the coil rack before enamelled wires are winded on the coil rack, inner ends of the terminal pins are bended, the bended inner end of the terminal pin is no larger than the height of the inner side surface of the flange due to the existence of the step, automatic coiling at a coiling area is not hampered, automatic end line winding and automatic tinning can be realized at the terminal pins, so production efficiency is obviously improved, production cost is reduced, and the coil rack has a better market competitiveness.

Description

A kind of bobbin of electromagnetic relay

Technical field

The utility model relates to a kind of electromagnetic relay, specifically refers to the bobbin on a kind of electromagnetic relay.

Background technology

At present, electromagnetic relay has been widely used in occasions such as household electrical appliance, automobile, automated system, communication device and remote control, and along with the development of technology, its kind is also more and more, and function also has nothing in common with each other.But regardless of structure; In controller, all include a bobbin that is used for twining enamelled wire; This bobbin comprises the cylindricality coiling zone and first flange and second flange that are positioned at these regional two ends that wind the line of hollow, has the through hole that supplies each terminal pin to insert on one of them flange in first, second flange.During use, elder generation's coiling enamelled wire on bobbin, the manual again two ends with enamelled wire is wrapped on terminal pin the inner, at last tin is gone up at the inner kinking position of terminal pin.Adopt such structure, though also can accomplish the making of coil windings, can't wind the line, kinking, the continuous and automatic operation of going up tin one system row, make production efficiency low, and then influence its cost of manufacture and the market competitiveness.

The utility model content

The utility model technical problem to be solved is the present situation to prior art, the electromagnetic relay coil frame that provides a kind of and enhance productivity, reduce production costs.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: the cylindricality coiling zone that the bobbin of this electromagnetic relay comprises hollow be positioned at this cylindricality wind the line first flange, second flange at regional two ends; Have the through hole that supplies each terminal pin to insert on one of them flange in said first, second flange; It is characterized in that: have the step that is positioned at each through hole on one of them the flange inner face in said first, second flange, the height after the height of this step bends greater than terminal pin is inner.

As the preferred version of the utility model, the through hole of corresponding each terminal pin can have two, with the stability behind the raising terminal pin plug-in mounting.

In above-mentioned scenarios, the step of each through hole can be set up in parallel each other, but scheme is preferably, and each step is connected and form big step each other, and such scheme is convenient to process, and can further reduce production costs.

Have on another flange in said first, second flange with said step relatively and be adjacent to a breach of electromagnetic relay pedestal.After the coil windings assembly is installed to the electromagnetic relay pedestal, utilize this breach and pedestal sidewall to form a groove, injection glue permeates and solidifies, and guarantees the stability after bobbin is installed with this, with the electric property of further raising product.

Compared with prior art, because the utility model can make bobbin before the coiling enamelled wire, insert terminal pin earlier by means of the height of step; And with the bending of the inner of terminal pin, at this moment, because the existence of step; Can make the terminal pin the inner after the bending not exceed this flange inner face; Carry out automatic winding on the winding region territory with regard to not hindering like this, simultaneously also can so that twine automatically on the terminal pin end line with automatically on process of tin be achieved, thereby can enhance productivity significantly; Reduce production costs, finally make product have more the market competitiveness.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment before not twining enamelled wire;

Fig. 2 is the end view of Fig. 1;

Fig. 3 for the utility model embodiment the coiling, twine end line, on tin and pull straight wire pin the inner after structural representation;

Fig. 4 is the stereogram of Fig. 3;

Fig. 5 is the structural representation after the terminal pin of Fig. 4 is extracted from through hole;

Fig. 6 is the perspective view of the utility model embodiment after being installed on the pedestal.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1 to 5; The bobbin of this electromagnetic relay comprise hollow cylindricality coiling zone 1, be positioned at this cylindricality wind the line first flange 2 and second flange 3 at regional two ends; Originally executing in the example, coiling zone 1 is the cylinder of a hollow, the iron core of can planting in it; This

first flange

2 and 3 barrier effects of second flange are wound on beyond the coiling zone to prevent enamelled wire 4.

Have the through hole 21 that supplies each terminal pin 5 to insert on one of them flange in first, second flange, on this first flange inner face, have the step that is positioned at each through hole simultaneously, the height after the height of this step bends greater than terminal pin 5 the inners; See also Fig. 1 and Fig. 2, step can be designed to the structure of a plurality of and column distribution, and promptly a step is designed in each through hole; But in the present embodiment; Be positioned on first flange 2 of lower end and have four through holes 21, the corresponding terminal pin 5 of two through hole, the step of each through hole connect each other and form big step 22; Convenient like this processing is further to reduce production costs.

Simultaneously, be positioned at have on second flange of coiling zone upper end with above-mentioned step relatively and be adjacent to a breach 31 of electromagnetic relay pedestal 6.After winding assembly after bobbin winds the line, twines end line, upward tin is accomplished is installed to the electromagnetic relay pedestal; As shown in Figure 6; Utilize the formed groove of this breach and pedestal sidewall; Inject glue in this groove and permeate and solidify, can guarantee the stability after bobbin is installed, further improve the electric property of product.

Before the coiling, earlier each terminal pin 5 is inserted in the corresponding through hole 21, and makes the inner of each terminal pin 5 outwards be bent into form as depicted in figs. 1 and 2; At this moment; Because the height of step 22 makes that greater than the inner height of terminal pin after bending the terminal pin the inner after the bending is not higher than first flange, 2 medial surfaces, does not therefore influence automatic winding; Also be convenient to simultaneously automatically on terminal pin kinking and put into molten tin liquor uniformly and go up tin.Obviously, can obviously enhance productivity like this.And after in a single day going up the process of tin completion, again the inner of each terminal pin is pulled directly, can obtain like Fig. 3 to structure shown in Figure 5.

Claims

1. the bobbin of an electromagnetic relay; The cylindricality coiling zone that comprises hollow be positioned at this cylindricality wind the line first flange, second flange at regional two ends; Have the through hole that supplies each terminal pin to insert on one of them flange in said first, second flange; It is characterized in that: have the step that is positioned at each through hole on one of them the flange inner face in said first, second flange, the height after the height of this step bends greater than terminal pin is inner.

2. the bobbin of electromagnetic relay according to claim 1 is characterized in that: the through hole of corresponding each terminal pin has two.

3. the bobbin of electromagnetic relay according to claim 1 and 2, it is characterized in that: the step of each through hole connects each other and forms big step.

4. the bobbin of electromagnetic relay according to claim 1 and 2 is characterized in that: have on another flange in said first, second flange with said step relatively and be adjacent to a breach of electromagnetic relay pedestal.