JP3409435B2 - Solenoid device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid device used for a drive section of various mechanisms such as a door lock of an automobile. 2. Description of the Related Art In a conventional general solenoid device, FIG.
As shown in the figure, the solenoid unit 101 and the connector unit 102
Are electrically connected via a harness 103, and a surge absorbing element 104 is connected to each connection between one end 103a, 103a of the harness 103 and a pair of coil ends (not shown) of the solenoid unit 101. Leads 1 on both sides of
04a and 104b are connected and fixed by solders 105 and 105, respectively. [0003] In a conventional general solenoid device having the above-described structure, a surge absorbing element 104 is provided.
Is fixedly connected to the connection between one end side 103a, 103a of the harness 103 and the coil end by soldering.
Connection work is troublesome, and poor contact is likely to occur due to variations in the finish of soldering. Further, since the tensile force of the connector portion 102 is directly applied to the soldering portions 105, 105 of the surge absorbing element 104 via the harness 103, a special tensile strength is required to impart sufficient tensile strength to the soldering portions 105, 105. A complicated operation such as tightly winding the tape 106 or the like is required, which has been a factor of high cost. [0004] The present invention has been made in view of the above-mentioned circumstances, and simplifies the electrical connection work between the coil ends of the surge absorbing element, assures a good connection state, and allows the connection portion to have a good connection state. It is an object of the present invention to provide a solenoid device capable of obtaining sufficient tensile strength and capable of reducing costs. [0005] In order to achieve the above object, a solenoid device according to the present invention has a pair of coil terminal pieces protruding along a direction orthogonal to the axial direction of a plunger. A solenoid portion, a connector portion connected to the solenoid portion from a direction in which the coil terminal piece protrudes, and a connector provided on the solenoid portion and the connector portion and engaged with each other when the connector portion is connected to the solenoid portion. A mating portion, a pair of connector terminal pieces which are held by the connector portion and are electrically connected to the coil terminal pieces in a state where the connector portion and the solenoid portion are joined, and each of the connector terminal pieces is integrally formed with the two connector terminal pieces. A pair of connecting pieces extending to a space between the solenoid part and the connector part, and both side lead parts of the surge absorbing element formed on the two connecting pieces, respectively. Are provided with a substantially C-shaped groove in a side view which is press-fitted and held. According to the present invention, the one held by the connector portion
By simply pushing in both side leads of the surge absorbing element into each groove of the connecting piece on the connector terminal side of the pair, these two leads are pressed and held in each groove, so that the surge absorbing element is connected via the connecting piece. It is possible to easily and surely electrically connect between the connector terminal pieces. In this state, when the connector portion and the solenoid portion are relatively pressed along the projecting direction of the coil terminal piece, the two are integrally connected via the engaging portion, while the pair of connector terminal pieces are It is electrically connected to the pair of coil terminal pieces, and as a result, the surge absorbing element is automatically electrically connected between the pair of coil ends. Since the connector portion is integrally connected to the solenoid portion via the engagement portion, the pulling force on the connector portion side is not directly applied to the connection portion of the surge absorbing element. A special reinforcing means for ensuring the tensile strength of the portion is not required, and it can be manufactured at low cost. An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are an assembled perspective view and an exploded perspective view showing a solenoid device according to an embodiment of the present invention. 1 and 2, reference numeral 1 denotes a solenoid unit, and 2 denotes a connector unit for connecting the solenoid unit 1 to a power supply side. The solenoid unit 1 includes an electromagnet block 3
And a plunger 4 driven by the electromagnet block 3. As shown in FIG. 2, the electromagnet block 3 includes an upwardly U-shaped yoke 5, a stopper plunger 6 fixed to the central piece 5a of the yoke 5, and flanges 7a and 7b at both ends in the axial direction. And a cylindrical coil spool 7 (see FIG. 3) made of an insulating synthetic resin and externally fitted to the stopper plunger 6, a coil 8 wound around the coil spool 7, a yoke cover 9, and the like. . Left and right side portions 5 of the yoke 5
A protrusion 10 and a notch 11 are formed at the upper ends of the yoke cover 9 and the recesses 12 and a protrusion 13 are formed at both left and right end surfaces of the yoke cover 9, respectively. Is superimposed on the upper brim portion 7a, and the concave portion 12 and the convex portion 13 of the yoke cover 9 are fitted to the protruding portion 10 and the cutout portion 11, respectively.
The coil spool 7 is integrally fixed to the yoke 5. As shown in FIG. 3, a pair of terminal piece insertion grooves 14, 14 is formed on the front end face of the upper collar portion 7a of the coil spool 7 toward the rear, respectively.
The base end portions 15a of the pair of coil terminal pieces 15, 15 are press-fitted into these terminal piece insertion grooves 14, 14. These coil terminal pieces 15, 15 are press-fitted in the terminal piece insertion grooves 14, 14, respectively, before winding the coil 8, and when the coil 8 is wound around the coil spool 7, A pair of coil ends (not shown)
Are electrically connected to the base ends 15a, 15a of the coil terminal pieces 15, 15, respectively. Reference numeral 16 denotes an exterior tape wound around the coil 8. [0011] The left and right side pieces 5b of the yoke 5,
Projections 17, 17 are integrally formed on the lower side of each front end face of 5 c, respectively, and engagement holes 18, 18 are formed in both projections 17, 17. The connector part 2 includes a base 19 made of an insulating synthetic resin and a square positioning block 20 integrally formed on the base 19 and in contact with the yoke cover 9 on the solenoid part 1 side. The base 19
As shown in FIG. 5, when the connector portion 2 is coupled to the solenoid portion 1 along the direction in which the coil terminal pieces 15, 15 protrude from the engagement holes 18, as shown in FIG.
18 are formed integrally with each other, and the block 20 is provided with the coil terminal piece 1.
A pair of insertion holes 22, 22 through which the holes 5, 15 are inserted are formed along the front-rear direction. Reference numerals 23, 23 denote a pair of terminal piece holding grooves formed in the base 19 along the vertical direction at a position on the front side of the block 20.
A pair of connector terminal pieces 24, 24 are respectively press-fitted and held in 3, 3 respectively. Both connector terminal pieces 2
As shown in FIG. 2, the upper ends of the upper and lower terminals 4 and 24 are electrically connected to the coil terminal strips 15 and 15, respectively.
Connection portions 25, 25 are formed. 26, 26 are the connector terminal pieces 24, 2
4 and a pair of connecting pieces which are bent rearwardly toward the space S between the solenoid part 1 and the connector part 2 and are connected integrally.
As shown in FIG. 4, a surge absorbing element 2
The groove portions 28, 28 having a substantially C-shape in side view are formed in which the both-side lead portions 27a, 27b are press-fitted and held. In addition,
On the left and right sides of the block 20, as shown in FIG.
The positioning bosses 29, 29 projecting rearward are integrally formed, and the left and right side pieces 5 of the yoke 5 are integrally formed.
The inner surfaces b and 5c are in contact with each other. In the solenoid device having the above configuration, a pair of connector terminal pieces 24, 24
When the pair of terminal piece holding grooves 23, 23 are press-fitted from above, the connector terminal pieces 24, 24 are firmly held in the connector part 2, and at the same time, the pair of connection pieces 26, 26 are used for positioning in the connector part 2. It will be disposed below block 19. When the two-sided leads 27a, 27b of the surge absorbing element 27 are pushed into the grooves 28, 28 at the respective ends of the pair of connection pieces 26, 26, the two-sided leads 27a, 27b are moved to the positions shown in FIG. As shown, the grooves 28 are firmly held in a press-fit state. That is, the surge absorbing element 27 can be electrically connected between the pair of connecting pieces 26, 26 by a one-touch operation, and the both-side leads 27a, 27b are
8, a good connection state having no variation as compared with that to be soldered can be obtained. In this state, the pair of coil terminal pieces 15, 15 are inserted into the pair of insertion holes 22, 22 on the connector section 2 side.
When the connector portion 2 and the solenoid portion 1 are pressed relatively to each other while inserting them, the locking claw pieces 21 and 21 on the connector portion 2 side engage the engaging holes 18 and 21 on the solenoid portion 1 side.
18 are engaged with each other, so that the two 1 and 2 are integrally joined. At this time, since the positioning block 20 on the connector part 2 abuts on the front end face of the yoke cover 9 on the solenoid part 1, rattling of the two parts 1 and 2 in the front-rear direction is prevented. Bosses 29, 29 of the yoke 5
Abuts on the inner surfaces of the left and right side pieces 5b and 5c, so that rattling of the left and right sides 1 and 2 in the left and right directions is also prevented. When the connector portion 2 is coupled to the solenoid portion 1, the tip ends of the pair of coil terminal pieces 15, 15 are connected to the pair of connector terminal pieces 24, 24, respectively.
5, 25, the connector terminal strips 24, 24
Are electrically connected to the coil terminal pieces 15, 15 as they are. By connecting the pair of connector terminal pieces 24, 24 to the pair of coil terminal pieces 15, 15, the surge absorbing element 27 is automatically electrically connected between the pair of coil ends. Will be. That is, since the solenoid unit 1 and the connector unit 2 can be easily connected without using a harness, and soldering work or the like is not required, the surge absorbing element 27 and the connection between the solenoid unit 1 and the connector unit 2 are not required. It is possible to automate the assembly. The connector section 2 is connected to the solenoid section 1
The connection pieces 26, 26
There is no need for a special reinforcing means for securing the tensile strength at the connection between the surge absorbing element 27 and the surge absorbing element 27, and the manufacturing cost can be reduced. In the above embodiment, the connector terminal pieces 24, 24 are separately provided for the pair of coil terminal pieces 15, 15, but as shown in FIG. A pair of connector terminal pieces 24, 24 are integrally formed on the respective tip end sides of the pair of coil terminal pieces 15, 15, and when the connector section 2 is coupled to the solenoid section 1 as shown in FIG. The pair of connector terminal pieces 2
After press-fitting the terminal pieces 4 and 24 into the terminal piece holding grooves 23 and 23, FIG.
A configuration of assembling as described above is also possible. As described above, according to the present invention, the connector is connected to the solenoid portion and is electrically connected to the pair of coil terminal pieces on the solenoid portion side. The connection pieces are formed integrally with the pair of connector terminal pieces, respectively.
Since the leads on both sides of the surge absorbing element are press-fitted and held in the grooves formed in these connection pieces, the surge absorbing element is directly connected between a pair of coil ends by connecting the connector part to the solenoid part. It can be electrically connected, simplifying the connection workability, ensuring the proper connection state, and requiring no tensile strength measures at the connection part of the surge absorbing element, resulting in low cost Can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an assembled perspective view showing a solenoid device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the solenoid device in the embodiment. FIG. 3 is a perspective view showing a coil spool and a coil terminal strip. FIG. 4 is a vertical sectional side view showing a connection portion of a surge absorbing element. FIG. 5 is a perspective view showing a connector section. FIG. 6 is a perspective view showing a state before coupling between a solenoid unit and a connector unit. FIG. 7 is a perspective view showing an example in which a connector terminal piece is integrally formed with a coil terminal piece. FIG. 8 is a perspective view when the connector terminal piece of FIG. 7 is held by the connector portion. 9 is an assembled perspective view of a solenoid device using the connector terminal piece of FIG. 8; FIG. 10 is a perspective view showing a conventional solenoid device. [Description of Signs] 1 Solenoid part 2 Connector part 4 Plunger 15, 15 Coil terminal piece 18, 21 Engagement part 24, 24 Connector terminal piece 26, 26 Connection piece 27 Surge absorbing element 27a, 27a Lead on both sides of surge absorbing element 28 Groove S Vacancy

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 58-169683 (JP, U) Japanese Utility Model 58-170477 (JP, U) Japanese Utility Model 2-73705 (JP, U) Japanese Utility Model 5- 43509 (JP, U) Japanese Utility Model Showa 62-15668 (JP, U) Japanese Utility Model Utility Model Showa 55-117677 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01F 7/16

Claims (1)

(57) [Claim 1] A solenoid portion having a pair of coil terminal pieces projecting along a direction perpendicular to the axial direction of the plunger;
A connector portion coupled to the solenoid portion from the projecting direction of the coil terminal piece, and an engagement portion provided on the solenoid portion and the connector portion and engaged with each other when the connector portion is coupled to the solenoid portion, A pair of connector terminal pieces that are held by the connector section and are electrically connected to the coil terminal pieces in a coupled state of the connector section and the solenoid section; A pair of connecting pieces extending to a space between the solenoid portion and the connector portion, and a substantially C-shaped groove in a side view formed on each of the connecting pieces and for press-fitting and holding both side leads of the surge absorbing element. A solenoid device comprising: