JPH07263038A - Electric connector for coil and connector assembly using the same - Google Patents

Abstract

PURPOSE:To provide an electric connector for a coil which can be simply, electrically and mechanically connected to or coupled with a coil bobbin round which an insulating electric wire is wound without by soldering, and a connector assembly using it. CONSTITUTION:An electric connector 100 for a coil has an insulating housing 110 having a cylindrical part and a rear end part 113 having a hinge part 120 and an almost L-shaped contact 130. This contact 130 has contact parts 131 and 133 on both ends, and has a pressure contact connecting part 135 in the vicinity of a bending part. The hinge part 120 of the insulating housing 110 is opened and closed, and an electric element is made connectable to the pressure contact connecting part 135. This electric connector 100 for a coil is integrally connected to a coil bobbin 20 of a coil part 10, and constitutes a connector assembly having a coil.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector, and more particularly to an electrical connector for a coil wound around a coil bobbin and a connector assembly using the same.

[0002]

2. Description of the Related Art Generally, a coil such as a solenoid is constructed by winding an insulated electric wire such as an enamel wire or a formalin wire around a bobbin a desired number of times. The bobbin for forming such a coil and the terminal terminating both ends of the insulated wire are disclosed in Japanese Patent Publication No. 62-337.
No. 30 and is commercially available from AMP, Inc., Harrisburg, PA.

However, when it is desired to use such a coil together with a connector for connecting the coil to a circuit, it is common to make a solder connection between the connector and the coil. Further, in the case of a relayed solenoid which is used by supplying an urging current to such a coil, the urging current is caused to flow only in a specific fixed direction, and if the urging current in the reverse direction is supplied, In some cases, a diode for bypassing this is connected in parallel with the coil, or a capacitor or a resistor is connected in parallel with the coil from the outside as needed.

[0004]

However, the conventional electrical connector for such a purpose is poor in work efficiency because it is soldered, and it is difficult or impossible to add an electrical element such as a diode in the field.

Therefore, an object of the present invention is to use a coil electrical connector which can be easily connected to a coil without the need for soldering work, and which can be connected with a circuit element such as a diode, if necessary. It is to provide a connector assembly.

[0006]

[Means for Solving the Problems] In order to achieve the above-mentioned object,
The coil electrical connector of the present invention has a plurality of substantially L-shaped contacts fixed in an insulating housing having a tubular portion having a hinge portion at its rear end. A pressure contact connecting portion is provided in the vicinity of the bent portion of each contact, that is, at a position corresponding to the hinge portion of the insulating housing, and the hinge portion is opened and closed so that an electric element such as a diode can be selectively pressure connected to the pressure contact connecting portion. Further, the insulating housing can be attached to the coil bobbin, and the contact is configured to come into contact with the terminal terminating the coil at the time of attachment.

Further, according to the connector assembly of the present invention, the above-mentioned coil connector is integrally connected to the coil,
A connector with a coil can be obtained without soldering.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the electrical connector for coils of the present invention and the connector assembly using the same will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a preferred embodiment of the connector assembly of the present invention. FIG. 2 shows a vertical sectional view of the connector assembly of FIG. FIG. 3 is an explanatory view showing a state in which a circuit element such as a diode is connected between the pressure contact connecting portions of the pair of contacts of the coil electrical connector of FIG.

The connector assembly of the present invention comprises a coil portion 10 and a connector portion (or coil electrical connector) 100. FIG. 2 is a vertical cross-sectional view of a connector assembly formed by assembling and integrating the coil portion 10 and the connector portion 100.

First, the coil portion 10 will be described. Coil part
Reference numeral 10 denotes a substantially circular (or square) columnar or tubular coil winding portion 22 and substantially rectangular end portions 30 arranged at both ends of the coil winding portion 22,
It has a coil bobbin 20 consisting of 40. The first end 30 of the coil bobbin 20 is formed with two terminal insertion cavities 31, 32 in this particular embodiment, and the sidewalls of these cavities 31, 32 have slots 33, 34 orthogonal to the cavities 31, 32. Are formed respectively. In addition, slits 3 are formed in the vertical direction on both end faces of the first end portion 30.
Lock recesses (or grooves) 37, 38 having 5, 36 are formed. On the other hand, the second end 40 has a lock plate 41 having a lock hole 42 formed therein. Coil bobbin 20 is the above-mentioned Japanese Patent Publication Sho 62
It may be the same as that described in JP-A-33730.

Although not shown in FIG. 1 for convenience, as can be understood from FIG. 2, the coil winding portion 22 of the coil bobbin 20 includes:
An insulated wire 50 such as an enamel wire is wound a desired number of times. The starting end and the terminating end of this electric wire 50 are respectively slots 33, 34 of the first end portion 30.
Placed across. In this state, the two terminals 60 are inserted into the terminal insertion cavities 31 and 32.

The terminal 60 is preferably of the type that accepts crimp slots and tab contacts. A preferred embodiment of such a terminal 60 is disclosed in, for example, Japanese Patent Publication No. 4-10715, Japanese Patent Laid-Open No. 61-80778 or Japanese Utility Model Laid-Open No. 63-194462. Here, it is assumed that a terminal similar to the terminal disclosed in the above-mentioned first publication is used. However, it should be understood that the present invention should not be limited to this particular terminal at all, and various known terminals or their modified terminals can be used.

That is, the terminal 60 is composed of, for example, a single metal plate which is bent into a substantially L shape. Pressure contact slots 64 and 65 are formed from the connecting end 61 of the metal plate to both plate-like bodies 62 and 63, respectively. Further, a piercing or barb (not shown) that bites into the wall surfaces of the terminal insertion portions 31, 32 of the end portion 30 of the coil bobbin 20 is formed on the side edges of the plate-shaped bodies 62, 63. Furthermore,
An elastic tongue piece or contact piece 67 is formed by bending the free end of one plate-like body 62 inward.

As will be described later, the coil portion 10 and the connector portion 100
When and are connected, the tab-shaped contact portion 133 of the contact 130 held in the insulating housing 110 is connected to the terminal 60.
It is sandwiched between the contact piece 67 and the other plate-shaped body 63. As a result, the contact 130 and the terminal 60 establish an electrical connection. The plate 63 of the terminal 60 may have a flat plate shape,
It is preferable to form a contact protrusion (not shown) that is partially inwardly deformed to reduce the electrical contact resistance with the tab-shaped contact portion 133.

Next, the connector portion, that is, the coil electrical connector 100 will be described. The connector portion 100 is composed of an insulating housing 110 and two contacts (only one is shown in the figure) 130 held or fixed inside the insulating housing 110.

The insulating housing 110 has an open mating end 111.
And a rear end portion 113 having a substantially rectangular shape. A latch piece 114 having a latch protrusion 115 is formed on the fitting end 111. The rear end portion 113 has a hinge portion 120 hinged to the top surface and is formed at the rear end portion 113.
On both side walls 121 of 3, the lock pieces 122, which are integral or separate,
Paired. The corner lock piece 122 has a rectangular opening 123, for example.

The contact 130 of the connector portion 100 has a substantially L-shaped integral structure formed by punching and bending a metal plate as shown in the figure. The tab-shaped first contact portion 131 extends in the tubular portion 112 of the insulating housing 110 toward the mating end 111,
The wing stop 132 is recessed into the wall of a contact receiving passage (not shown) of the insulating housing 110 and secured by known techniques. A second tab-shaped relatively short second contact portion 133 is also formed at the other end of the contact 130. In the vicinity of the bent portion 134 of the contact 130, a pressure contact connecting piece 135 having a pressure contact slot 136 is cut and formed. This crimping connection piece 135
Is inside the rear end 113 of the insulating housing 110, especially the hinge 12
It is located at the corresponding position of 0. Therefore, the hinge part 120
By opening and closing the
Note that 5 is easily accessible.

In FIG. 3, a lead wire 151 of an electric element 150 such as a diode is attached to a pressure contact connecting portion 135 of a pair of contacts 130,
Shown with the 152 connected. To connect the electric element 150, the hinge portion 120 of the rear end portion 113 of the insulating housing 110 is opened as described above, and pressure connection is performed using a known pressure welding tool or the like. Then, the hinge part 120 is closed. This hinge part
It is preferable to form engaging protrusions on both sides of 120 so as to engage with complementary engaging portions (not shown) on both side walls of the rear end portion 113 so that the closed state can be maintained.

The preferred embodiments of the coil electrical connector of the present invention and the connector assembly using the same have been described above in detail. However, it will be easily understood by those skilled in the art that the present invention is not limited to such an embodiment and various modifications and changes can be made as necessary.

For example, the shapes of the coil bobbin 20 of the coil portion 10 and the insulating housing 110 of the connector portion 100 can be arbitrarily modified according to a specific application. When the total length of the coil bobbin 20 is relatively short, the insulating housing 110 and the coil bobbin 20 may be coupled only by the pair of lock pieces 122 formed at the rear end portion 113 of the insulating housing 110. That is, the latch piece 114 on the fitting end 111 side of the tubular portion 112 of the insulating housing 110 may be omitted. Further, a long groove (or opening) 116 formed in the longitudinal direction on the top wall of the tubular portion 112 constitutes an engaging portion with a known latch arm of a mating connector (not shown) that fits with the connector portion 100. Because of that. Alternatively, however, an engaging shoulder formed on the inner surface of the top wall may be used.

The coil bobbin of the coil section 10 described above
Only one coil 50 is wound around 20, and both ends of the insulated wire are terminated to a pair of terminals 60. But coil 50
It goes without saying that the coil may have a large number of terminals 60 that terminate each insulated wire end by winding an intermediate tapped coil or two or more coils.

Furthermore, the pressure contact connection portion of each contact 130
The 135 may be connected to a conductor other than the electric element 150. For example, it is possible to connect a connecting wire to another circuit.

[0024]

As can be understood from the above description, according to the coil electrical connector of the present invention, the coil bobbin can be easily and quickly attached and connected without complicated work such as soldering, so that workability is improved. Very good. If necessary, an electric element or the like can be easily added by pressure contact connection. Furthermore, a connector assembly can be obtained in which the coil electrical connector and the coil portion are integrated so that the mating connector can be fitted.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a preferred embodiment of a connector assembly of the present invention.

FIG. 2 is a vertical sectional view of the connector assembly of FIG. 1 in an assembled state.

FIG. 3 is an explanatory view showing a state in which an electric element is pressure-connected to a pair of contacts of the coil electrical connector of FIG.

[Explanation of symbols]

 100 Coil electrical connector (connector part) 110 Insulation housing 112 Cylindrical part 113 Rear end part 120 Hinge part 130 Contact 131, 133 Contact part 135 Pressure contact connection part 150 Electric element 10 Coil part 20 Coil bobbin 22 Insulated wire winding part 30, 40 Ends 31, 32 Terminal insertion part 60 terminals

Claims (2)

[Claims] 1. A cylindrical portion for fitting with a mating connector,
An insulating housing having a hinge portion at the rear end of the tubular portion, and a substantially L-shape inserted and held in the tubular portion of the insulating housing and having contact portions at both ends, and having a pressure contact connecting portion near the bent portion. An electrical connector for a coil, comprising at least one pair of contacts, wherein an electric element can be connected to the press-connecting connection portion by opening and closing the hinge portion of the insulating housing, and which can be attached to a coil bobbin for use. 2. A coil bobbin having an insulated wire winding portion and at least one pair of terminal insertion portions connected to an end portion of the insulated wire wound around the winding portion, and inserted into the terminal insertion portion of the coil bobbin. A connector having a substantially L-shaped contact that is brought into contact with the formed terminal, the connector being held in an insulating housing, and the connector can be attached to the coil bobbin.