JPH04105505U - Coil terminal connection device for electromagnetic equipment - Google Patents

Abstract

(57) [Summary] [Objective] To provide a coil terminal connection device for electromagnetic equipment that can simplify the connection work between a coil terminal and an excitation coil. [Structure] The device main body 1 has a protrusion 4 on the upper side of the side surface,
A dovetail groove 5 that opens downward is formed on the lower side of the side surface, and a coil lead wire 7 is drawn out to the outside. A U-shaped coil terminal 2 consisting of a lead wire connection part 10 along the upper surface of the protrusion 4, an intermediate part 9 along the side surface of the protrusion 4, and a lead wire connection part 10 along the lower surface of the protrusion 4 is attached to the protrusion. 4, and the tip portion 12 of the coil lead wire 7 is brought into contact with the lead wire connecting portion 10. The dovetail strip 13 of the fixture 3 is engaged with the dovetail groove 5, and the pressing portion 15 presses the tip portion 12 of the coil lead wire 7 to the lead wire connecting portion 10.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a coil terminal connection device for electromagnetic devices such as electromagnetic contactors. Ru.

0002

[Conventional technology]

To facilitate the installation and bar wiring of electromagnetic devices in the control panel, Some had terminals on the surface (for example, Utility Model No. 2-12670).

0003

[Problem that the idea aims to solve]

However, the connection between the excitation coil and coil terminal of electromagnetic equipment is done inside the equipment itself. This had the disadvantage that connection work was troublesome. Therefore, the purpose of this invention is to simplify the connection work between the coil terminal and the excitation coil. An object of the present invention is to provide a coil terminal connection device for an electromagnetic device that can perform the following steps.

0004

[Means to solve the problem]

The coil terminal connection device for electromagnetic equipment of this invention has a protrusion on the upper side of the side surface, A dovetail groove that opens downward is formed on the lower side of the side surface, and an excitation coil is provided inside. The main body of the device with its coil lead wire pulled out to the outside, an external connection part along the top surface of the protrusion, an intermediate part along the side surface of the protrusion, and a front part. and a lead wire connection part along the lower surface of the protrusion, a coil terminal in which the tip of the lead wire is in contact with the lead wire connection portion; The tip portion of the coil lead wire has a dovetail that engages with the dovetail groove. and a fitting having a pressing part that presses the lead wire connection part into contact with the lead wire connection part. .

[0005]

[Effect]

According to the configuration of this invention, the coil terminal is arranged on the protruding part, and the tip of the coil lead wire is While touching the end to the lead wire connection part of the coil terminal, insert the dovetail strip of the fixture into the dovetail groove. When engaged, the pressing part presses the tip of the coil lead wire against the lead wire connection part. be able to. Therefore, when installing coil terminals and fixtures, the coil Since the lead wire can be connected to the coil terminal, the coil The work of connecting the terminal and the excitation coil becomes extremely easy.

[0006]

【Example】

A first embodiment of this invention will be explained with reference to FIGS. 1 to 9. In other words, this The coil terminal connection device for electromagnetic equipment is shown in Figures 1 to 6 as follows: , a coil terminal 2 , and a fitting 3 . The device main body 1 has a protrusion 4 on the upper side of the side surface, and a protrusion 4 on the lower side of the side surface that opens downward. A dovetail groove 5 is formed, and an excitation coil 6 is provided inside, and the coil lead wire 7 is removed. I'm pulling it out to the department. This device body 1 uses an electromagnetic contactor as an example. A relay terminal 16 is provided on the side surface adjacent to the side surface having the dovetail groove 5, and the relay terminal 16 is energized. Connect the coil end pulled out from the coil 6 and connect one end of the coil lead wire 7. The coil lead wire 7 of the excitation coil 6 is thereby drawn out to the outside. 1 7 is a main terminal, 18 is a mounting hole for installation on the floor, and 19 is a movable locking piece of the mounting plate 20.

[0007] The coil terminal 2 has an external connection portion 8 along the top surface of the protrusion 4 and an external connection portion 8 along the side surface of the protrusion 4. It is U-shaped and consists of an intermediate portion 9 that extends along the lower surface of the protruding portion 4, and a lead wire connecting portion 10 that extends along the lower surface of the protruding portion 4. Thus, the tip end 12 of the coil lead wire 7 is brought into contact with the lead wire connecting portion 10. end The child connection part 8 has a terminal hole 21 and locking claws 22 on both sides of the tip. , near the nut 23 provided on the top surface of the device body 1 corresponding to the terminal connection part 8. A locking recess 24 is formed in which the locking pawl 22 locks. Also, the middle part 9 faces towards the top side. While forming the retaining claw 11, a locking hole 25 is formed, and the locking hole 25 is fitted into the locking hole 25. A protrusion 26 is formed on the side surface of the protrusion 4.

[0008] The fixture 3 has a dovetail 13 that engages with the dovetail groove 5 and a coil lead wire 7. It has a pressing part 15 that presses the tip part 12 of the lead wire connecting part 10 into contact with the lead wire connecting part 10. Also, it will not come out It has a claw receiving part 14 that engages with the claw 11, and also has a claw receiving part 14 that tilts upward near the pressing part 15. A stop protrusion 29 is provided protrudingly provided, and a lock receiving portion (not shown) with which the fall preventive protrusion 29 engages is provided. It is formed on the lower surface of the protrusion 4 of the device main body 1. Furthermore, this fixture 3 has a circular arc on the bottom surface. An elastic part 27 having a shape is provided, and the elastic part 27 is pressed by the mounting plate 20. Mounting plate 20 has a pair of hooking claws 28, and the hooking claws 28 are connected to the fixed locking piece 60 ( Fig. 7) and the movable locking piece 19 biased by a spring in the locking direction. has been done. Note that the coil terminal 2 has a retaining claw 11 that is locked in the claw receiving part 14. Fixed by

[0009] 7 and 8 show the internal structure of the electromagnetic contactor. i.e. equipment book The body 1 consists of an electromagnet block 30 and a contact block 31. 0 hook 32 is engaged with the hook receiving part 33 of the contact block 31, and the hook 32 is A hook provided on the contact block 31 with a ring-shaped locking spring (not shown) provided on the opposite side. (not shown). Then, the contact block 31 is connected to the electromagnetic block. By forming the protrusion 4 larger than the lock 30, the protrusion 4 is formed on the upper side of the side surface of the device main body 1. is formed. The electromagnetic block 30 is attached to the container body 34 with screws 35. Consisting of a cover 36, 37 is a fixed iron core provided with an excitation coil 6, 38 is a movable iron core, 39 is a return spring, and 40 is a connection provided on the movable core 38 and protruding from the cover 36. Department.

0010 In addition, in the contact block 31, 41 is a main terminal fixing screw, and 42 is a connecting part 40. A movable frame having a connected portion 43, 44 a contact pressure spring, and 45 a movable contact 4. 6 is a movable contact plate, 47 is a fixed contact provided on the main terminal 17, and 48 is a main terminal 17. This is a nut for connecting the bar. FIG. 9 shows a cross section of the control panel, where 50 is a case, 51 is a cover, 52 is a wall, and 5 3 is its fixing bolt, 54 is an electromagnetic device to which this embodiment is applied, and 55 is a transistor. 56 is a capacitor, 57 is a wiring bar for interconnecting these terminals, 58 59 is a terminal screw, and 59 is a mounting screw.

[0011] According to this embodiment, the coil terminal 2 is disposed on the protrusion 4, and the coil lead wire 7 is While touching the tip part to the lead wire connection part 10 of the coil terminal 2, When the strip 13 is engaged with the dovetail groove 5, the tip portion 12 of the coil lead wire 7 is pressed by the pressing portion 15. can be pressed into contact with the lead wire connection part 10. Therefore, coil terminal 2 and When installing the coil lead wire 7 and the fitting 3, it is necessary to connect the coil lead wire 7 to the coil terminal 2. This makes it easier to connect the coil terminal 2 and the excitation coil 6 compared to the conventional example. It becomes extremely easy.

0012 A second embodiment of this invention is shown in FIGS. 10 to 12. In other words, this electric In the first embodiment, the coil terminal connection device for magnetic equipment connects the leads of the coil terminal 2. A contact piece 62 and a locking piece 63 are integrally formed on the line connecting portion 10 by bending. So The pressing portion 15 of the fixture 2 presses between the lock piece 63 and the contact piece 62. sand That is, FIG. 11 shows the state before inserting the tip end 12 of the coil lead wire 7, and FIG. shows the state in which the coil lead wire 7 is inserted in the direction of the arrow, and the pressing part 15 is pressed. Due to the force, the contact piece 62 comes into strong contact with the tip 12 of the coil lead wire 7, and the chain The lock piece 63 strongly locks the tip 12 of the coil lead wire 7.

[0013] According to this embodiment, the fixture 3 is attached to the device body 1, and the mounting plate 20 is fixed. The coil lead wire 7 can be connected later by pushing it into the lead wire connection part 10. This further improves workability.

[0014]

[Effect of the idea]

The coil terminal connection device for electromagnetic equipment of this invention arranges the coil terminal in the protrusion, Touch the tip of the coil lead wire to the lead wire connection part of the coil terminal, and then remove it. When the dovetail strip of the attachment is engaged with the dovetail groove, the tip of the coil lead wire is led by the pressing part. Since it can be pressure-welded to the wire connection part, it is easy to install the coil terminal and fittings. Therefore, the coil lead wire can be connected to the coil terminal, so compared to the conventional example. This has the effect of making it extremely easy to connect the coil terminal and excitation coil. .

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a first embodiment of this invention.

FIG. 2 is a partially exploded perspective view thereof.

FIG. 3 is a perspective view of the fixture in a half-sectioned state.

FIG. 4 is a plan view of the electromagnetic contactor.

FIG. 5 is a front view thereof.

FIG. 6 is a cross-sectional view of the mounting fixture in an attached state.

FIG. 7 is a half-sectional view of the electromagnetic contactor.

FIG. 8 is a half-sectional view showing a different cross-sectional position.

FIG. 9 is a sectional view of the control panel.

FIG. 10 is an exploded perspective view of the second embodiment.

FIG. 11 is a sectional view of a lead wire connection portion.

FIG. 12 is a sectional view of the lead wire connection portion with the coil lead wire inserted.

[Explanation of symbols]

1 Equipment body 2 Coil terminal 3 Mounting hardware 4 Projection 5 Dovetail groove 6 Excitation coil 7 Coil lead wire 8 External connection part 9 Middle part 10 Lead wire connection part 12 Tip 13 Dovetail 15 Pressing part

Claims (1)

[Scope of utility model registration request] 1. A device having a protruding portion on the upper side of the side surface, a dovetail groove opening to the lower surface on the lower side of the side surface, and an excitation coil provided inside and the coil lead wire drawn out to the outside. a main body; an external connection portion along the top surface of the protrusion;
A coil terminal having a U-shape consisting of an intermediate part along the side surface of the protrusion and a lead wire connection part along the lower surface of the protrusion, and in which the tip of the coil lead wire is in contact with the lead wire connection part. and a fitting having a dovetail that engages with the dovetail groove and a pressing portion that presses the tip end of the coil lead wire into contact with the lead wire connection portion.