JPH071764Y2 - Terminal assembly structure for electromagnetic devices - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a terminal assembly structure of an electromagnetic device in which terminals are assembled to an assembly portion provided in a case of an electromagnetic device such as an electromagnet.

[Prior Art] As a conventional terminal assembly structure of this type of electromagnetic device, a terminal is composed of a support block made of an insulating material and a terminal rod embedded and fixed in the support block, and the support block is press-fitted and fixed, It is known that the case is assembled and fixed to the assembling part of the case by welding with ultrasonic waves or adhesion with an adhesive.

[Problems to be Solved by the Invention] However, in any of the methods of press-fitting, fixing, welding, and adhering, in the above-described conventional technology, a dedicated machine for performing them is required, and a large amount of equipment cost is required. It is difficult to confirm whether or not the terminal is correctly assembled at the predetermined position of the assembly portion, and in the above-mentioned bonding method, it takes time for the adhesive to cure, resulting in poor work efficiency. There was a problem.

The present invention has been made by paying attention to the problems existing in such a conventional technique, and the purpose thereof is to make a terminal without requiring a large amount of equipment cost for a dedicated machine. Can be easily assembled by hand, and it is possible to easily confirm whether or not the terminal is correctly assembled at the predetermined position of the assembly part. An object of the present invention is to provide a terminal assembly structure for an electromagnetic device that can efficiently perform assembly work without the need.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, in the terminal assembly structure of an electromagnetic device, the terminal is assembled to an assembly portion provided in a case of the electromagnetic device. The terminal is composed of a support block made of an insulating material and a terminal rod embedded and fixed in the support block, and the terminal is inserted into the assembly part in either the assembly part of the case or the terminal support block. In this case, by engaging with the other part of the assembly part or the support block, it moves to the retracted position against the elastic force of itself to allow the insertion of the terminal, and the terminal is assembled in the predetermined position of the assembly part. In this case, an elastic lock member for locking the terminal to the assembly portion is provided by moving to the engagement position where it engages with the locking portion provided on the other side of the assembly portion or the support block by its own elastic force. Is.

[Operation] In the terminal assembly structure of the electromagnetic device configured as described above, when the terminal is inserted into the assembly part of the case, the elastic lock member provided on either the assembly part or the support block is assembled. Due to the engagement with the other part of the portion or the support block, it is moved to the retracted position against the elastic force of itself and the insertion of the terminal is permitted. Then, when the terminal is assembled at a predetermined position of the assembly portion, the elastic lock member is moved to the engagement position where the elastic lock member engages with the engagement portion provided on the other side of the assembly portion or the support block, By the engagement of the elastic lock member and the locking portion, the terminal is locked at a predetermined position of the assembly portion. Further, since an engagement sound is generated when the elastic lock member and the locking portion are engaged with each other, it is possible to easily confirm that the engagement sound accurately mounts the terminal at a predetermined position of the mounting portion. it can.

[Embodiment] An embodiment of a terminal assembly structure of an electromagnetic device embodying the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, an electromagnetic valve 1 as an electromagnetic device includes a pair of electromagnets 2 inside, an outer casing 3 is molded on the outer periphery thereof, and an end face plate 4 is fixed to the upper end thereof. . Each electromagnet 2 is provided with a fixed iron core 5, a coil 6 and a plunger 7. By moving the plunger 7 up and down as the coil 6 is energized, the flow path of the valve device 8 linked to the lower part is switched. The plurality of terminal rods 9 extend from the coils 6 of the electromagnets 2, penetrate the end plate 4, and project upward.

The case 10 is attached to the upper surface of the end plate 4, and a connection pin 11 having an engaging recess 11a at its upper end is embedded in a part of the case 10 with its lower end protruding downward. The first printed circuit board 12 is fixed to the lower surface of the case 10, and the upper end portion of the terminal bar 9 is fixed to the first printed circuit board 12 by soldering from below and the lower end portion of the connection pin 11 is fixed from above. It is penetrated and fixed by soldering. The second printed circuit board 14 supporting the electric component 13 is attached to the upper surface of the case 10, and the lower surface thereof is provided with the engagement pin 15 projectingly engaged with the engagement recess 11a of the connection pin 11 from above. . Cover 16 is case 10
The cover 16 is attached to the upper side and covers the upper and one side of the case 10 with the cover 16.

As shown in FIGS. 1 to 3, the through-hole-shaped assembly portion 17 is formed in a part of the case 10, has one end opened to the outer surface of the case, and the other end has a first printed circuit board. Opened on the top of twelve. An elastic flat plate-like elastic lock member 18 is integrally projectingly formed in the inner part of the assembling part 17 and extends horizontally along the inner top surface of the assembling part 17 toward the opening side.

As shown in FIGS. 1, 2, and 4, a terminal 19 is a support block 20 made of an insulating material, and a plurality of side-bar-shaped terminal bars embedded and fixed in the support block 20. twenty one
And a stepped locking portion 22 is provided on the upper surface of the support block 20. When the terminal 19 is inserted into the assembling portion 17 from the one end opening side and assembled, the elastic lock member 18 engages with the support block 20 to engage itself as shown by a chain line in FIG. The terminal 19 is allowed to be inserted by being moved to the retracted position against the elastic force of. Further, when the terminal 19 is assembled at a predetermined position of the assembly portion 17 and the terminal rod 21 of the terminal 19 is fitted into the through hole of the first printed board 12, as shown by the solid line in the figure, the elastic The lock plate 18 is moved to an engaging position where it engages with the locking portion 22 on the support block 20 by its own elastic force, and the terminal 19 is assembled by the engagement of the elastic lock plate 18 and the locking portion 22. The attachment part 17 is locked at a predetermined position.

Next, a method of assembling the terminal assembling structure portion of the solenoid valve configured as described above will be described.

When assembling the case 10 and the terminals 19 and the like on the upper surface of the solenoid valve 1 having the electromagnet 2 and the like inside thereof, first, the case 10 is turned upside down and placed on a workbench or the like, and the terminals 19 and The case
The end portion of the terminal rod 21 is fixed to the first printed circuit board 12 by soldering.
Then, the first printed circuit board 12 is placed on the case 10 and the end portions of the connection pins 11 are fixed to the first printed circuit board 12 by soldering.

At the time of assembling the terminal 19, when the terminal 19 is inserted from the one end opening side of the assembling portion 17, the elastic lock member 18 engages with the support block 20 so that the elastic property of the elastic lock member 18 is increased as shown by the chain line in FIG. The terminal 19 is allowed to be inserted by being moved to the retracted position against the force. Then, the terminal 19 is assembled at a predetermined position of the assembly portion 17, and the terminal rod 21 of the terminal 19 is connected to the first printed circuit board.
When fitted into the 12 through holes, as shown by the solid line in the figure,
The elastic lock plate 18 is moved by its own elastic force to an engaging position where it engages with the locking portion 22 on the support block 20, and the engagement of the elastic lock plate 18 and the locking portion 22 causes the terminal 19 to move. It is locked in place in the assembly part 17. Therefore, the terminal 19 can be easily assembled by hand without using a dedicated machine or the like, and the assembly work can be efficiently performed without waiting time for curing the adhesive. You can

When the terminal 19 is assembled, the elastic lock member
When 18 is moved from the retracted position to the engagement position by the elastic force of itself and engages with the locking portion 22 on the support block 20, an engagement sound such as "click" is generated. Therefore, it is possible to easily confirm that the terminal 19 is correctly assembled at the predetermined position of the assembly portion 17 by the engagement sound.

After the terminals 19 are assembled in this manner, the case 10 is returned from the upside-down state to the normal state, and the end face plate 4 of the solenoid valve 1 is
The terminal bar 9 is mounted and fixed on the first printed circuit board 12, and the end portion of the terminal rod 9 protruding on the first printed circuit board 12 is soldered and fixed to the first printed circuit board 12.
Then, the second printed circuit board 14 on which the electric component 13 is mounted is placed on the case 10, and the engagement pin 15 on the lower surface thereof is connected and engaged with the engagement recess 11a of the connection pin 11 on the case 10. And
When the cover 16 is attached to the top of the case 10, all the assembly work is completed.

The present invention is not limited to the configuration of the above-described embodiment. For example, as shown in FIG. 5, the elastic lock member 18 is formed to project on the support block 20 side of the terminal 19, and
Providing a locking portion 22 on the inner surface of the assembly portion 17 side of the case 10, etc.
The configuration of each unit can be arbitrarily modified and embodied without departing from the spirit of the invention.

[Effect of the Invention] Since the present invention is configured as described above,
The terminal can be easily assembled by hand without requiring a large amount of equipment cost for a dedicated machine, and it is easy to check whether or not the terminal is correctly assembled in the predetermined position of the assembly section. In addition, there is an excellent effect that the assembling work can be efficiently performed without requiring waiting time for curing the adhesive.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a solenoid valve showing an embodiment of a terminal assembling structure embodying the present invention, FIG. 2 is a partial cross-sectional view showing an enlarged part of the terminal assembling structure, and FIG. 3 is a case. FIG. 4 is a side view showing the assembling portion of FIG. 4, FIG. 4 is a partially cutaway perspective view showing an enlarged terminal, and FIG. 5 is a partial sectional view showing another embodiment of the terminal assembling structure. DESCRIPTION OF SYMBOLS 1 ... Electromagnetic valve as an electromagnetic device, 10 ... Case, 17 ... Assembly part, 18 ... Elastic locking plate, 19 ... Terminal, 20 ... Support block,
21 ... Terminal bar, 22 ... Locking part.

Claims (1)

[Scope of utility model registration request] 1. A terminal assembly structure for an electromagnetic device, wherein a terminal (19) is assembled to an assembly portion (17) provided in a case (10) of the electromagnetic device, wherein the terminal (19) is made of an insulating material. Support block (20) and terminal rod (21) embedded and fixed in the support block (20)
And the support block (20) of the terminal (19) or the assembly portion (17) of the case (10),
When inserting the terminal (19) into the assembling part (17), it moves to the retracted position against the elastic force of itself due to the engagement with the other part of the assembling part (17) or the support block (20). Then the terminal (1
9) is allowed, and when the terminal (19) is assembled at a predetermined position of the assembly part (17), it is provided on the other part of the assembly part (17) or the support block (20) by its own elastic force. And an elastic lock member (18) for locking the terminal (19) to the assembling part (17), the elastic locking member (18) moving to an engaging position for engaging the locking part (22). Terminal assembly structure.