TWI394190B - Multi-directional push switch - Google Patents

Description

Multi-directional push switch

The invention relates to a multi-directional pressing switch, in particular to a pressing switch which can move the operating body to the left, right and downward and change the closed circuit by the elastic force of three spiral springs.

Such a push switch, as currently known in the art, is disclosed in the multi-directional input device of the Chinese Patent Publication No. I242225 (Application No. 093133697), as shown in the twelfth figure, and the action switching device of the M297600 (Application No. 095201606). As shown in the thirteenth figure. The former is composed of a lower housing 210, an upper housing 220, an operating body 230, a sliding piece 240 and a torsion coil spring 250; the latter is composed of a base 310, a conductive sheet 340, and a metal dome. 350, a control panel 320, a return spring 360 and a metal cover 330. It can be seen from the twelfth and thirteenth figures that the two are substantially the same in basic structure, and it is worth mentioning that the two slides 240 (or metal domes 350) and the torsion coil springs 250 (or return springs) 360) is disposed on the front and rear sides of the operating body 230 (or the control panel 320). This point is troublesome in assembly, and then assembled to the other side after assembly, and the torsion coil spring (or return spring) It is also more complicated and time consuming to assemble; these two shortcomings seem to have room for improvement.

The present invention is directed to the disadvantages of the conventional multi-directional push switch, and provides a multi-directional push switch in which the contact piece and the spiral spring for resetting are both disposed on the same plane, and the device of the spiral spring is simple and fast.

The multi-directional push switch of the present invention comprises: a base, a triple spiral spring, a contact piece, an operating body and an upper cover.

The base is a box-shaped insulator without a top surface, and an opening is arranged at the front end thereof, and a bottom groove is arranged on the inner bottom surface thereof, and four fixed joints are respectively a common fixed joint, a left fixed joint and a right fixed joint. The lower fixed contact, and the two recesses are respectively a left groove and a right groove, and a left and right ends of the front and rear sides are respectively provided with a snap protrusion, a total of four, and the outer bottom surface corresponds to the four The fixed contacts are provided with four or more terminals connected to the four fixed contacts.

The three spiral springs are a left spiral spring, a right spiral spring and a middle spiral spring, respectively.

The contact piece is a horseshoe-shaped conductive elastic piece, and a movable contact is arranged on each of the left and right front ends, and a fixing hole is respectively arranged on the left and right sides of the rear end, and a shaft hole is arranged in the center of the rear end.

The operating body is an insulator composed of a pressing portion and an actuating portion, and the two are connected by a neck; the bottom surface of the actuating portion is corresponding to the groove of the base on the left and right sides, respectively a pressing protrusion, a pivot is disposed at a near center corresponding to the shaft groove of the base, and a fixing protrusion is respectively disposed on the left and right sides of the rear end corresponding to the fixing hole of the contact piece, and a fixing protrusion is disposed at a center of the rear end The abutting portion is provided with a cavity on the abutting portion, and a spherical contact is arranged on the top of the cavity.

The upper cover, the metal material, is composed of a cover plate and a four-fold piece. The four-fold piece is disposed at four corners of the cover plate, and extends perpendicularly downwardly from the cover plate, and each of the flaps is provided with an engaging hole. Corresponding to the four engaging projections of the base respectively.

The assembly of the multi-directional push switch of the present invention: firstly, the contact piece is fixed to the bottom surface of the operating body by the fixing hole thereof, and the middle spiral spring is loaded into the cavity of the operating body; the left spiral spring is The right spiral springs are respectively inserted into the left and right grooves of the base; and then the operating body of the contact piece and the middle spiral spring is mounted, and the shaft groove is pivotally aligned with the base The base is finally covered by the upper cover, and the four engaging holes of the upper cover are engaged with the four engaging protrusions of the base, and the assembly work is completed.

The function of the multi-directional push switch of the present invention: after the multi-directional push switch is completed, that is, in a normal state, the left and right movable contacts of the contact piece are located at a common fixed joint of the inner bottom surface of the base. No electrical conduction is generated; when the pressing portion is pressed to the left, the left spiral spring is pressed by the left pressing protrusion, and the left movable contact is elastically connected to the left fixed contact, but the right The movable contact is still spliced with the common fixed contact, so that the left loop is electrically connected. If the pressing force is released, the pressing portion returns to the normal position by the resilience of the squeezed left spiral spring; If the pressing portion is pressed to the right, the right spiral spring is squeezed, the right movable contact is elastically connected to the right fixed contact, and the left movable contact is still elastically connected with the common fixed contact, so that The right loop generates electrical conduction. If the pressing force is released, the pressing portion returns to the normal position by the resilience of the squeezed right spiral spring; and if the pressing portion is pressed down, the left portion Right spiral spring and middle spiral The spring is squeezed, the right movable contact is elastically connected to the lower fixed contact, and the left movable contact is still elastically connected with the common fixed contact, so that the lower loop circuit is electrically connected, and if the pressing force is released, The pressing portion returns to the normal position by the resilience of the left, right and middle spiral springs, and the function of the middle spiral spring presses the force downwards under adjustment, so that the device can be omitted according to the needs of use.

The invention is characterized in that: a groove is arranged on each of the left and right sides of the inner bottom surface of the base, and each groove has a spiral spring; the left and right sides of the bottom surface of the operating body correspond to the two sides of the base Each of the recesses is provided with a pressing protrusion; the contact piece is disposed on the bottom surface of the operating body, and the bottom surface of the operating body and the bottom surface of the base are face-to-face devices, and the contact piece and the four fixed contacts and the left and right spirals are The springs are located on the same plane; a hole is provided in the center of the bottom end of the operating body to accommodate the middle spiral spring.

The specific configuration example of the preferred embodiment of the present invention is described below with reference to the accompanying drawings. The multi-directional push switch 100 of the present invention, as shown in the first and second figures, includes: a base 1, a triple spiral spring 21, 22, 23, a contact piece 3, an operating body 4 and an upper cover 5.

The base 1 is a box-shaped insulator without a top surface, and an opening 17 is defined at the front end thereof, and the inner bottom surface 10 is fixed with four fixed joints, which are a common fixed joint 11, a left fixed joint 12, and a right fixed The contact point 13 and the lower fixed contact 14 are provided with an elliptical shaft groove 18, and a left groove 15 and a right groove 16 are respectively disposed on the left and right sides thereof, respectively, before and after the base 1 There are two engaging protrusions on the left and right ends respectively, a total of four 19, 19, 19, 19, and four or more fixed four or more fixed joints 11, 12, 13, and 14 on the outer bottom surface thereof. Terminals, in this embodiment, are seven 11a, 12a, 12a, 12a, 13a, 13a, 14a and are connected to the four fixed contacts 11, 12, 13, 14 as shown in Figure 6A. Abutting blocks 111 and 111 are disposed on the left and right sides of the shaft groove 18, and a positioning groove 112 is formed between the two resisting blocks 111 and 111.

The three spiral springs 2 are a left spiral spring 21, a right spiral spring 22, and a middle spiral spring 23.

The contact piece 3 is a horseshoe-shaped conductive elastic piece, and the left and right front ends are respectively provided with a left movable contact 31 and a right movable contact 32, and a fixing hole 33 is arranged on each of the left and right sides of the rear end. 33, the center of the rear end corresponding to the shaft groove 18 of the base 1 is provided with an elliptical shaft hole 34.

The operating body 4 is an insulator composed of a pressing portion 41 and an actuating portion 42 connected by a neck portion 47. The bottom surface 49 of the actuating portion 42 corresponds to the base on the left and right sides. The left recess 15 and the right recess 16 are respectively provided with a left pressing protrusion 43 and a right pressing protrusion 44, and a pivot 46 is disposed at a near center corresponding to the shaft slot 18 of the base 1, corresponding to the rear end sides. A fixing protrusions 45 and 45 are respectively disposed in the fixing holes 33 and 33 of the contact piece 3. Abutting portion 48 is disposed at the center of the rear end, and a cavity 481 is disposed on the abutting portion 48. A spherical joint 482 is provided at the top.

The upper cover 5, the metal material, is composed of a cover plate 51 and four folded pieces 52, 52, 52, 52. The four folded pieces 52, 52, 52, 52 are disposed at the four corners of the cover plate 51, and the cover plate 51 is vertically extended downward, and each of the flaps 52, 52, 52, 52 corresponds to each of the engaging projections 19, 19, 19, 19 of the base 1, and is provided with an engaging hole 53, 53, 53, 53 .

The assembly of the multi-directional push switch 100 of the present invention: firstly, the shaft hole 34 of the contact piece 3 is sleeved on the pivot 46 of the operating body 4, and is fixed to the operating body 4 by the fixing holes 33, 33 of the contact piece 3. The fixing protrusions 45, 45 make the contact piece 3 integral with the operating body 4, as shown in the fourth figure, the middle spiral spring 23 is loaded into the cavity 481 of the operating body 4; The spiral spring 21 and the right spiral spring 22 are respectively fitted into the left groove 15 and the right groove 16 of the base 1, as shown in the fifth figure; secondly, the contact piece 3 and the middle spiral are already mounted. The operating body 4 of the spring 23 is fitted into the base 1 with its pivot 46 aligned with the shaft slot of the base 1. At this time, the left and right pressing protrusions 43, 44 of the operating body 4 slightly press the left and right respectively. The spiral springs 21, 22 are simultaneously received between the positioning groove 112 of the base 1 and the cavity 481 of the operating body 4, and are elastically supported against the top spherical shape of the cavity 481. The contact point 482, by the resilience of the left, right and middle spiral springs 21, 22, 23 and the shaft groove 18 of the base 1 blocks the pivot 46 of the operating body 4, so that the operating body 4 is at The normal state is as shown in FIG. 6; finally, the upper cover 5 is covered on the base 1, and the four engaging holes 53, 53, 53, 53 of the upper cover 5 and the four engaging protrusions 19, 19 of the base 1 are used. 19, 19 are engaged, so that the upper cover 5 and the base 1 are tightly joined together; thus, the assembly work is completed.

The function of the multi-directional push switch 100 of the present invention: after the multi-directional push switch 100 is assembled, that is, in a normal state, at this time, the left and right movable contacts 31 and 32 of the contact piece 3 are located at the common fixed connection. At point 11, no loop electrical conduction is generated, as shown in FIG. 6A; if the pressing portion 41 is pressed to the left, the left pressing protrusion 43 compresses the left spiral spring 21, as shown in FIG. The left movable contact 31 is elastically connected to the left fixed contact 12, but the right movable contact 32 is still elastically connected to the common fixed contact 11, so that the left loop is electrically connected, as shown in FIG. 7A. When the pressing force is released, the pressing portion 41 is returned to the normal position by the resilience of the compressed left spiral spring 21; similarly, if the pressing portion 41 is pressed to the right, the right pressing protrusion 44 That is, the right spiral spring 22 is compressed, as shown in the eighth figure, and the right movable contact 32 is elastically connected to the right fixed contact 13, but the left movable contact 31 is still elastically connected to the common fixed contact. 11, the right loop is electrically connected, as shown in Figure 8A, if the pressing force is released, The repulsive force of the compressed right spiral spring 22 returns the pressing portion 41 to the normal position; and if the pressing portion 41 is pressed downward, the left and right pressing protrusions 43, 44 respectively compress the left side, The right spiral springs 21, 22, at the same time, the spherical joint 482 at the top of the cavity 481 also compresses the middle spiral spring 23, as shown in the ninth figure, and the right movable contact 32 is elastically attached to the lower fixed Contact 14, but the left movable contact 31 is still spliced to the common fixed contact 11, so that the lower loop is electrically connected, as shown in FIG. 9A, if the pressing force is released, by the compressed left, The resilience of the right and middle spiral springs 21, 22, 23 causes the pressing portion 41 to return to the normal position.

The present invention is characterized in that the inner bottom surface 10 of the base 1 is provided with a left groove 15 and a right groove 16 on the left and right sides thereof, respectively, to accommodate the left spiral spring 21 and the right spiral spring 22; The bottom surface 49 of the operating body 4, the left and right sides correspond to the left and right spiral springs 21, 22 of the base 1, and are respectively provided with a left pressing protrusion 43 and a right pressing protrusion 44; the contact piece 3 is disposed in the operation The bottom surface 49 of the body 4, the bottom surface 49 of the operating body 4 and the inner bottom surface 10 of the base 1 face each other, the contact piece 3, the four fixed contacts 11, 12, 13, 14 and the left and right spirals The springs 21, 22 are all located on the same plane; a hole 481 is provided in the center of the bottom end of the operating body 4 to accommodate the central spiral spring 23.

The above description is only for the specific structural examples of the present invention. Without departing from the basic structure and spirit of the present invention, those skilled in the art can make various modifications and modifications. Covered in the scope of the following patent application in this case.

1. . . Base

2. . . Spiral spring

3. . . Contact sheet

4. . . Operating body

5. . . Upper cover

10. . . Inner bottom surface

11. . . Common fixed joint

11a. . . Terminal

12. . . Left fixed contact

12a. . . Terminal

13. . . Right fixed contact

13a. . . Terminal

14. . . Lower fixed contact

14a. . . Terminal

15. . . Left groove

16. . . Right groove

17. . . Opening

18. . . Shaft groove

19. . . Clamping protrusion

twenty one. . . Left spiral spring

twenty two. . . Right spiral spring

twenty three. . . Middle spiral spring

31. . . Left movable contact

32. . . Right movable contact

33. . . Fixed hole

34. . . Shaft hole

41. . . Pressing part

42. . . Actuation department

43. . . Left press protrusion

44. . . Right press protrusion

45. . . Fixed protrusion

46. . . Pivot

47. . . neck

48. . . Retardant

49. . . Bottom

51. . . Cover

52. . . Fold

53. . . Engagement hole

100. . . Multi-directional push switch

111. . . Offset block

112. . . Positioning slot

200. . . Multi-directional input device

210. . . Lower housing

220. . . Upper housing

230. . . Operating body

240. . . Slide

250. . . Torsion coil spring

300. . . Conventional motion switching device

310. . . Pedestal

320. . . control panel

330. . . Metal cover

340. . . Conductive sheet

350. . . Metal shrapnel

360. . . Return spring

481. . . Hole

482. . . Spherical joint

The first figure is a perspective exploded view of the multi-directional push switch of the present invention;

The second figure is an exploded perspective view of the multi-directional push switch of the present invention;

The third figure is a perspective view of the multi-directional push switch of the present invention;

The fourth figure is a schematic view of the contact piece of the multi-directional push switch of the present invention connected to the operating body;

The fifth figure is a schematic view of the spiral spring device of the multi-directional push switch of the present invention behind the base;

Figure 6 is a schematic view showing the relative positions of the components after the multi-directional push switch assembly of the present invention is completed;

Figure 6 is a schematic view showing the relative position of the movable contact and the fixed contact when the multi-directional push switch of the present invention is in a normal state;

7 is a schematic view showing the relative positions of the members when the pressing portion of the multi-directional push switch of the present invention is pressed to the left;

FIG. 7A is a schematic view showing the relative position of the movable contact and the fixed contact when the pressing portion of the multi-directional push switch of the present invention is pressed to the left;

Figure 8 is a schematic view showing the relative positions of the members when the pressing portion of the multi-directional push switch of the present invention is pressed to the right;

FIG. 8 is a schematic view showing the relative position of the movable contact and the fixed contact when the pressing portion of the multi-directional push switch of the present invention is pressed to the right;

Figure 9 is a schematic view showing the relative positions of the members when the pressing portion of the multi-directional push switch of the present invention is pressed downward;

FIG. 9 is a schematic view showing the relative position of the movable contact and the fixed contact when the pressing portion of the multi-directional push switch of the present invention is pressed downward;

The tenth figure is a schematic diagram of part B of the sixth figure;

Figure 11 is a cross-sectional view of the sixth section A-A;

Figure 12 is an exploded perspective view of a conventional multi-directional input device;

Figure 13 is an exploded perspective view of a conventional motion switching device.

1. . . Base

2. . . Spiral spring

3. . . Contact sheet

4. . . Operating body

5. . . Upper cover

11, 12, 13, 14. . . Fixed contact

15. . . Left groove

16. . . Right groove

17. . . Opening

18. . . Shaft groove

twenty one. . . Left spiral spring

twenty two. . . Right spiral spring

twenty three. . . Middle spiral spring

31, 32. . . Movable contact

34. . . Shaft hole

41. . . Pressing part

42. . . Actuation department

43. . . Left press protrusion

44. . . Right press protrusion

48. . . Hole

49. . . Bottom

100. . . Multi-directional push switch

Claims (1)

A multi-directional push switch comprises: a base, a topless box-shaped insulator, an opening at the front end thereof, four fixed joints and an elliptical shaft groove fixed on the inner bottom surface thereof, and the inner bottom surface thereof is left a left groove and a right groove are respectively disposed on the right side, and abutting block is disposed on each of the left and right sides of the shaft groove, and a fixing groove is formed between the two abutting blocks to fix the following a spiral spring; a triple spiral spring, respectively a left spiral spring, a right spiral spring and a middle spiral spring, wherein the left and right spiral springs have a length smaller than the left and right grooves of the base The length is slightly longer; a contact piece is a horseshoe-shaped conductive elastic piece, and the left and right front ends respectively have a left movable contact and a right movable contact, and a fixed hole is arranged on each of the left and right sides of the rear end. An axial hole corresponding to the base of the rear end is provided with an elliptical shaft hole; an operating body is an insulator composed of a pressing portion and an actuating portion, and the two are connected by a neck portion, and the actuating portion The bottom surface of the base corresponds to the left and right grooves of the base respectively a left pressing protrusion and a right pressing protrusion, a pivot is disposed at a center of the bottom surface corresponding to the shaft slot of the base, and a fixing protrusion is respectively disposed on each of the fixing holes corresponding to the contact piece on the rear end sides of the bottom surface, The contact piece and the operating body are fixed by the fixing hole of the contact piece and the fixing protrusion of the operating body, and a resisting portion is disposed at the center of the rear end of the operating body, and a hole is formed on the resisting portion. a spherical contact is arranged on the top of the cavity; an upper cover, a metal material; and a connection relationship of the multi-directional pressing switch: the first contact piece is fixed to the operating body to be integrated, and the middle spiral spring is mounted Inserting the holes of the operating body; placing the left and right spiral springs into the left and right grooves of the base; and then loading the operating body into the base, and then pressing the pressing portion of the operating body For the opening of the base, the two left and right pressing protrusions are elastically coupled to the two left and right spiral springs, and the middle spiral spring is elastically connected to the spherical joint of the top of the cavity; finally, the upper cover is covered by the cover Base The bottom surface of the base is provided with a left groove and a right groove respectively on the left and right sides of the base, respectively accommodating the left spiral spring and the right spiral spring; the bottom surface of the operating body is left The right side corresponds to the left and right grooves of the base, and each has a left pressing protrusion and a right pressing protrusion; the contact piece is disposed on the bottom surface of the operating body, and the bottom surface of the operating body is formed with the inner bottom surface of the base In the face-to-face device, the four fixed contacts of the contact piece and the left and right spiral springs are all located on the same plane; the middle spiral spring device is disposed in the cavity of the operating body.