Switch gear

Abstract

To achieve downsizing of a holder in a switch gear including the holder which covers a sealing member.SOLUTION: A switch gear includes: a switch body; a lead wire; a sealing member; and a holder. The switch body includes a switch housing and a first terminal protruding from the switch housing. The lead wire includes a tip part fixed to the first terminal. The sealing member seals the first terminal and the tip part. The holder covers the sealing member. The holder includes a connection part disposed in the holder. The holder is fixed to the switch body by the connection part being attached to the first terminal.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a switch device.

Background Art

[0002] Some switch devices include a switch body and a holder. The switch body includes a switch housing and terminals. The terminals protrude from the switch housing. A lead wire is connected to the terminals. The holder covers the connection portion between the terminals and the lead wire. Further, in order to protect the connection portion, the holder is filled with a sealing member such as resin. For example, in the switch device disclosed in Patent Document 1, the holder covers the switch body and houses the sealing member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above switch device, in order to fix the holder to the switch body, the holder covers the switch body. Therefore, the holder has a larger outer shape than the switch body, and the holder is enlarged. An object of the present invention is to reduce the size of the holder in a switch device including a holder that covers a sealing member.

Means for Solving the Problems

[0005] A switch device according to one aspect of the present invention includes a switch body, a lead wire, a sealing member, and a holder. The switch body includes a switch housing and a first terminal protruding from the switch housing. The lead wire includes a tip portion fixed to the first terminal. The sealing member seals the first terminal and the tip portion. The holder covers the sealing member. The holder includes a connection portion disposed within the holder. The holder is fixed to the switch body when the connection portion is attached to the first terminal.

[0006] In the switch device according to this aspect, the connection portion is disposed within the holder, and the holder is fixed to the switch body when the connection portion is attached to the first terminal. Thereby, the holder is miniaturized.

[0007] The connection portion may be attached to the first terminal by a snap fit. In this case, the connection portion can be attached to the first terminal with a simple structure. Thereby, the holder is miniaturized.

[0008] The first terminal may include a notch. When the connection portion is locked to the notch, the holder may be prevented from coming off in the direction in which the first terminal protrudes from the switch housing. In this case, the holder is prevented from coming off by the locking between the connection portion and the notch.

[0009] The connection portion may include a first snap fit portion and a second snap fit portion. The first snap fit portion extends from the inner surface of the holder, is disposed on a first side with respect to the first terminal, and may be locked to the first terminal. The second snap fit portion extends from the inner surface of the holder, is disposed on a second side opposite to the first side with respect to the first terminal, and may be locked to the first terminal. In this case, the first snap fit portion and the second snap fit portion are locked to the first terminal from both sides of the first terminal. Thereby, the connection portion is firmly attached to the first terminal.

[0010] The holder may include a snap-fit holding portion that suppresses the spread between the first snap-fit portion and the second snap-fit portion. The snap-fit holding portion may include a first extension portion and a second extension portion. The first extension portion may extend from the inner surface of the holder and be disposed on the first side of the first snap-fit portion. The second extension portion may extend from the inner surface of the holder and be disposed on the second side of the second snap-fit portion. In this case, the spread between the first snap-fit portion and the second snap-fit portion is suppressed by the snap-fit holding portion. Thereby, the connecting portion is firmly attached to the first terminal.

[0011] The switch body may include a second terminal protruding from the switch housing. The holder may include a terminal pressing portion extending from the inner surface of the holder. The terminal pressing portion contacts the second terminal from a direction opposite to the direction in which the connecting portion is locked to the first terminal by the snap fit. In this case, when the terminal pressing portion contacts the second terminal, the movement of the holder in the direction in which the snap fit of the connecting portion comes off from the first terminal is suppressed. Thereby, the connecting portion is firmly attached to the first terminal.

[0012] The terminal pressing portion may extend obliquely from the inner surface of the holder toward the second terminal. In this case, when the terminal pressing portion is bent, the terminal pressing portion is pressed against the second terminal by the elastic force of the terminal pressing portion. Thereby, the connecting portion is firmly attached to the first terminal.

[0013] The switch body may include a second terminal protruding from the switch housing. The connecting portion may include a first snap-fit portion and a second snap-fit portion. The first snap-fit portion may extend from the inner surface of the holder and lock to the first terminal. The second snap-fit portion may extend from the inner surface of the holder and lock to the second terminal. In this case, the degree of freedom in the arrangement of the first snap-fit portion and the second snap-fit portion is improved.

[0014] The holder may include a first holder member and a second holder member. The first holder member may include a mounting protrusion. The second holder member may include a mounting hole and may be separate from the first holder member. The first holder member may be attached to the second holder member by press-fitting the mounting protrusion into the mounting hole. In this case, the first holder member can be attached to the second holder member while suppressing an increase in the size of the holder.

[0015] The connecting portion may be attached to the first terminal by press-fitting. In this case, the connecting portion can be attached to the first terminal with a simple structure. Thereby, the size of the holder is reduced.

[0016] The connecting portion may include a first press-fitting portion and a second press-fitting portion. The first press-fitting portion may include a first recess and may extend from the inner surface of the holder. The second press-fitting portion may include a second recess and may extend from the inner surface of the holder. The first terminal may be press-fitted between the first recess and the second recess. In this case, the connecting portion can be attached to the first terminal with a simple structure. Thereby, the size of the holder is reduced.

[0017] The switch housing may include a bottom portion and a groove portion. The bottom portion may be disposed inside the holder. The groove portion may be provided on the side surface of the bottom portion. The holder may include a convex portion protruding toward the inside of the holder. By engaging the convex portion with the groove portion, the holder may be prevented from coming off in the direction in which the first terminal protrudes from the switch housing. In this case, while suppressing an increase in the size of the holder, the holder is prevented from coming off by the engagement between the convex portion and the groove portion.

[0018] The holder may include a lead protection portion. The lead protection portion may include a lead hole and may protrude from the side surface of the holder. The lead wire may extend through the lead hole. In this case, the lead wire is protected by the lead protection portion.

[0019] The outer shape of the holder may be equal to or smaller than the outer shape of the switch housing. The outer shape of the holder may be flush with the outer shape of the switch housing. In this case, the size of the holder is reduced.

Advantages of the Invention

[0020] According to the present invention, in a switch device including a holder that covers a sealing member, the holder is miniaturized.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Embodiments for Carrying Out the Invention

[0022] Hereinafter, the switch device according to the embodiment will be described with reference to the drawings. FIG. 1 is a perspective view of a switch device 1 according to the present embodiment. As shown in FIG. 1, the switch device 1 includes a switch body 2, a first lead wire 3, a second lead wire 4, a sealing member 5, and a holder 6.

[0023] FIG. 2 is an exploded perspective view of the switch device 1. In FIG. 2, the sealing member 5 is omitted. As shown in FIG. 2, the switch body 2 includes a switch housing 10, a first terminal 11, a second terminal 12, a third terminal 13, and a button 14. The first terminal 11, the second terminal 12, and the third terminal 13 project from the switch housing 10.

[0024] In the present embodiment, the direction in which the first terminal 11, the second terminal 12, and the third terminal 13 project from the switch housing 10 is defined as downward, and the opposite direction is defined as upward. As shown in FIG. 2, the holder 6 includes a first holder member 6A and a second holder member 6B. The direction from the second holder member 6B toward the first holder member 6A is defined as forward, and the opposite direction is defined as backward. Also, the left side toward the front is defined as the left side, and the right side toward the front is defined as the right side. Note that each of the above-described directions is defined for convenience of explanation and does not limit the arrangement direction of the switch device 1 or the like.

[0025] As shown in FIG. 2, the switch housing 10 includes a base 15 and a case 16. The case 16 is attached to the base 15. The case 16 covers the base 15 from above. The button 14 is disposed on the upper surface of the case 16. The first terminal 11, the second terminal 12, and the third terminal 13 protrude downward from the base 15. The first terminal 11, the second terminal 12, and the third terminal 13 are arranged side by side in the left - right direction. The first terminal 11 is arranged between the second terminal 12 and the third terminal 13 in the left - right direction. The second terminal 12 is arranged to the right side of the first terminal 11. The third terminal 13 is arranged to the left side of the first terminal 11. However, the second terminal 12 and the third terminal 13 may be arranged in the opposite direction to the above in the left - right direction.

[0026] The third terminal 13 is always electrically connected to the first terminal 11 within the switch housing 10. In a state where the button 14 is not pressed, the first terminal 11 and the third terminal 13 are electrically disconnected from the second terminal 12. In a state where the button 14 is pressed, the first terminal 11 and the third terminal 13 are electrically connected to the second terminal 12. However, conversely, in a state where the button 14 is not pressed, the first terminal 11 and the third terminal 13 may be electrically connected to the second terminal 12. In a state where the button 14 is pressed, the first terminal 11 and the third terminal 13 may be electrically disconnected from the second terminal 12.

[0027] The first lead wire 3 includes a first tip portion 3A. The first tip portion 3A is fixed to the first terminal 11. For example, the first tip portion 3A is fixed to the first terminal 11 by soldering or welding. The first tip portion 3A and the first terminal 11 are arranged within the holder 6. The second lead wire 4 includes a second tip portion 4A. The second tip portion 4A is fixed to the second terminal 12. For example, the second tip portion 4A is fixed to the second terminal 12 by soldering or welding. The second tip portion 4A and the second terminal 12 are arranged within the holder 6. No lead wire is connected to the third terminal 13. However, a lead wire may be connected to the third terminal 13.

[0028] As shown in FIG. 1, the sealing member 5 is filled in the holder 6. The sealing member 5 seals the first terminal 11, the first tip portion 3A, the second terminal 12, the second tip portion 4A, and the third terminal 13. The sealing member 5 has elasticity. The sealing member 5 has waterproofness. The sealing member 5 is made of resin such as an epoxy adhesive, for example. The sealing member 5 is filled in the holder 6 in a heated and melted state, and then solidified by cooling.

[0029] The holder 6 covers the sealing member 5. The holder 6 is made of elastic resin. FIG. 3 is a perspective view of the holder 6 and the switch body 2. FIG. 4 is a bottom view of the holder 6 and the switch body 2. FIG. 5 is a perspective view of the holder 6. As shown in FIGS. 3 to 5, the holder 6 has a box-like shape with an open top and bottom. The holder 6 includes a first opening 21 and a second opening 22. The first opening 21 is provided on the bottom surface of the holder 6. The first lead wire 3 and the second lead wire 4 extend downward through the first opening 21. The second opening 22 is provided on the top surface of the holder 6. The second opening 22 is closed by the switch body 2.

[0030] The outer shape of the holder 6 is arranged flush with the outer shape of the switch housing 10. Specifically, the switch housing 10 includes a switch front wall 23, a switch rear wall 24, a first switch side wall 25, and a second switch side wall 26. The holder 6 includes a holder front wall 33, a holder rear wall 34, a first holder side wall 35, and a second holder side wall 36. The outer surface of the holder front wall 33 is arranged flush with the outer surface of the switch front wall 23. The outer surface of the holder rear wall 34 is arranged flush with the outer surface of the switch rear wall 24. The outer surface of the first holder side wall 35 is arranged flush with the outer surface of the first switch side wall 25. The outer surface of the second holder side wall 36 is arranged flush with the outer surface of the second switch side wall 26.

[0031] As shown in FIG. 5, a first recess 31 and a second recess 32 are provided on the upper surface of the holder 6. The first recess 31 and the second recess 32 communicate with the second opening 22. The first recess 31 is disposed adjacent to the first holder side wall 35. The second recess 32 is disposed adjacent to the second holder side wall 36. The first recess 31 facilitates the flow of the sealing member 5 around the second terminal 12 when the sealing member 5 is filled. Also, the second recess 32 facilitates the flow of the sealing member 5 around the third terminal 13 when the sealing member 5 is filled.

[0032] As described above, the holder 6 includes a first holder member 6A and a second holder member 6B. The second holder member 6B is separate from the first holder member 6A. The holder 6 is divided into a first holder member 6A and a second holder member 6B in the front-rear direction. The second holder member 6B is disposed behind the first holder member 6A. The first holder member 6A includes the above-described holder front wall 33. The second holder member 6B includes the above-described holder rear wall 34.

[0033] FIG. 6 is a perspective view of the first holder member 6A. FIG. 7 is a perspective view of the second holder member 6B. As shown in FIG. 6, the first holder member 6A includes a pair of first joint surfaces 37A, 37B and a plurality of mounting holes 38A - 38D. The pair of first joint surfaces 37A, 37B extend in the vertical direction. The plurality of mounting holes 38A - 38D include a first mounting hole 38A, a second mounting hole 38B, a third mounting hole 38C, and a fourth mounting hole 38D. The first mounting hole 38A and the second mounting hole 38B are provided on one of the first joint surfaces 37A. The third mounting hole 38C and the fourth mounting hole 38D are provided on the other first joint surface 37B.

[0034] As shown in FIG. 7, the second holder member 6B includes a pair of second joint surfaces 39A and 39B and a plurality of mounting protrusions 40A to 40D. The pair of second joint surfaces 39A and 39B extend in the vertical direction. The pair of second joint surfaces 39A and 39B are respectively disposed facing a pair of first joint surfaces 37A and 37B. The pair of second joint surfaces 39A and 39B are respectively joined to the pair of first joint surfaces 37A and 37B. The plurality of mounting protrusions 40A to 40D include a first mounting protrusion 40A, a second mounting protrusion 40B, a third mounting protrusion 40C, and a fourth mounting protrusion 40D. The first mounting protrusion 40A and the second mounting protrusion 40B protrude from one of the second joint surfaces 39A. The third mounting protrusion 40C and the fourth mounting protrusion 40D protrude from the other second joint surface 39B. The first to fourth mounting protrusions 40A to 40D are respectively press-fitted into the first to fourth mounting holes 38A to 38D. Thereby, the first holder member 6A is attached to the second holder member 6B.

[0035] As shown in FIGS. 2 to 4, the holder 6 includes a connection portion 41. The connection portion 41 is disposed inside the holder 6. The connection portion 41 is attached to the first terminal 11 by a snap fit. The holder 6 is fixed to the switch body 2 when the connection portion 41 is attached to the first terminal 11. Specifically, the connection portion 41 includes a first snap fit portion 42 and a second snap fit portion 43. The first snap fit portion 42 and the second snap fit portion 43 are locked to the first terminal 11. The first snap fit portion 42 and the second snap fit portion 43 are locked to the first terminal 11 from the side and the rear of the first terminal 11. The first snap fit portion 42 and the second snap fit portion 43 extend from the inner surface of the holder 6. The first snap fit portion 42 and the second snap fit portion 43 are disposed apart from each other in the left-right direction. The first snap fit portion 42 is disposed on the right side of the first terminal 11. The second snap fit portion 43 is disposed on the left side of the first terminal 11.

[0036] As shown in FIG. 4, the first snap - fit portion 42 includes a first lever 44 and a first hook 45. The first lever 44 extends rearward from the inner surface of the front wall 33 of the holder. The first lever 44 is disposed on the right side of the first terminal 11. The first lever 44 is locked to the first terminal 11 from the right side of the first terminal 11. The first hook 45 protrudes from the first lever 44. The first hook 45 is disposed behind the first terminal 11. The first hook 45 is locked to the first terminal 11 from behind the first terminal 11.

[0037] The second snap - fit portion 43 includes a second lever 46 and a second hook 47. The second lever 46 extends rearward from the inner surface of the front wall 33 of the holder. The second lever 46 is disposed on the left side of the first terminal 11. The second lever 46 is locked to the first terminal 11 from the left side of the first terminal 11. The second hook 47 protrudes from the second lever 46. The second hook 47 is disposed behind the first terminal 11. The second hook 47 is locked to the first terminal 11 from behind the first terminal 11.

[0038] FIG. 8 is a cross - sectional view taken along line VIII - VIII in FIG. 4. As shown in FIG. 8, the first terminal 11 includes a first notch 48 and a second notch 49. The first notch 48 has a shape recessed from the left side surface of the first terminal 11. The first snap - fit portion 42 is locked to the first notch 48. The first notch 48 is disposed below the first snap - fit portion 42. The first notch 48 is locked to the first snap - fit portion 42 from below the first snap - fit portion 42.

[0039] The second notch 49 has a shape recessed from the right side surface of the first terminal 11. The second snap - fit portion 43 is locked to the second notch 49. The second notch 49 is disposed below the second snap - fit portion 43. The second notch 49 is locked to the second snap - fit portion 43 from below the second snap - fit portion 43. Thereby, the holder 6 is prevented from coming off downward with respect to the first terminal 11.

[0040] As shown in FIG. 4, the holder 6 includes a snap-fit holding portion 50. The snap-fit holding portion 50 suppresses the spread between the first snap-fit portion 42 and the second snap-fit portion 43. The snap-fit holding portion 50 includes a first extending portion 51 and a second extending portion 52. The first extending portion 51 extends forward from the inner surface of the holder rear wall 34. The first extending portion 51 is disposed on the right side of the first snap-fit portion 42. The second extending portion 52 extends forward from the inner surface of the holder rear wall 34. The second extending portion 52 is disposed on the left side of the second snap-fit portion 43. The first snap-fit portion 42 and the second snap-fit portion 43 are disposed between the first extending portion 51 and the second extending portion 52. The first extending portion 51 and the second extending portion 52 sandwich the first snap-fit portion 42 and the second snap-fit portion 43 to suppress the spread between the first snap-fit portion 42 and the second snap-fit portion 43.

[0041] The holder 6 includes a first terminal pressing portion 53 and a second terminal pressing portion 54. The first terminal pressing portion 53 extends obliquely from the inner surface of the holder front wall 33 toward the second terminal 12. The first terminal pressing portion 53 is disposed in front of the second terminal 12 and is in contact with the second terminal 12. The second terminal pressing portion 54 extends obliquely from the inner surface of the holder front wall 33 toward the third terminal 13. The second terminal pressing portion 54 is disposed in front of the third terminal 13 and is in contact with the third terminal 13.

[0042] As described above, the first snap fit portion 42 and the second snap fit portion 43 are locked to the first terminal 11 from the side. Thereby, the movement of the holder 6 in the left - right direction is restricted. The first snap fit portion 42 and the second snap fit portion 43 are locked to the first terminal 11 from the rear. Thereby, the movement of the holder 6 in the rearward direction is restricted. Also, the first terminal pressing portion 53 and the second terminal pressing portion 54 are in contact with the second terminal 12 and the third terminal 13 from the front. Thereby, the movement of the holder 6 in the forward direction is restricted. That is, the first and second snap fit portions 42, 43 and the first and second terminal pressing portions 53, 54 restrict the movement of the holder 6 in the front - rear direction. Also, the first notch 48 and the second notch 49 of the first terminal 11 restrict the movement of the holder 6 in the downward direction. Thereby, the holder 6 is firmly fixed to the switch body 2.

[0043] In the switch device 1 according to the present embodiment described above, the connection portion 41 is disposed in the holder 6, and the holder 6 is fixed to the switch body 2 by attaching the connection portion 41 to the first terminal 11. Thereby, the holder 6 is miniaturized.

[0044] As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above - described embodiment, and various modifications are possible without departing from the gist of the invention.

[0045] The structure of the switch device 1 is not limited to that of the above - described embodiment and may be changed. The structure of the holder 6 is not limited to that of the above - described embodiment and may be changed. For example, in the above - described embodiment, the outer shape of the holder 6 is flush with the outer shape of the switch housing 10. However, the outer shape of the holder 6 may be smaller than the outer shape of the switch housing 10.

[0046] The arrangement of the lead wires 3 and 4 is not limited to that of the above embodiment and may be changed. FIGS. 9 and 10 are perspective views showing the switch device 1 according to the first modification. As shown in FIGS. 9 and 10, in the switch device 1 according to the first modification, the first lead wire 3 and the second lead wire 4 extend laterally from the holder 6. The holder 6 includes a lead protection portion 55. The lead protection portion 55 projects from the side surface of the holder 6. As shown in FIG. 10, the lead protection portion 55 includes a first lead hole 56 and a second lead hole 57. The first lead wire 3 extends through the first lead hole 56. The second lead wire 4 extends through the second lead hole 57.

[0047] The arrangement of the first snap - fit portion 42 and the second snap - fit portion 43 is not limited to that of the above embodiment and may be changed. For example, FIG. 11 is a bottom view showing the holder 6 and the switch body 2 of the switch device 1 according to the second modification. As shown in FIG. 11, the first snap - fit portion 42 and the second snap - fit portion 43 may extend from different portions of the inner surface of the holder 6. In the switch device 1 according to the second modification, the first snap - fit portion 42 extends forward from the inner surface of the rear wall 34 of the holder. The second snap - fit portion 43 extends rearward from the inner surface of the front wall 33 of the holder.

[0048] The first extension portion 51 and the second extension portion 52 may extend from different portions of the inner surface of the holder 6. As shown in FIG. 11, in the switch device 1 according to the second modification, the first extension portion 51 extends rearward from the inner surface of the front wall 33 of the holder. The second extension portion 52 extends forward from the inner surface of the rear wall 34 of the holder.

[0049] The arrangement of the first to third terminals 11 - 13 is not limited to that of the above embodiment and may be changed. FIG. 12 is a bottom view showing the holder 6 and the switch body 2 of the switch device 1 according to the third modification. In the switch device 1 according to the third modification, among the first to third terminals 11 - 13, the third terminal 13 is arranged at the center. The first terminal 11 is arranged to the left of the third terminal 13, and the second terminal 12 is arranged to the right of the third terminal 13.

[0050] The first snap - fit portion 42 and the second snap - fit portion 43 may be locked to different terminals. As shown in FIG. 12, in the switch device 1 according to the third modification, the first snap - fit portion 42 is disposed on the right side of the first terminal 11 and is locked to the first terminal 11. The second snap - fit portion 43 is disposed on the left side of the second terminal 12 and is locked to the second terminal 12. The first extension portion 51 is disposed on the right side of the first snap - fit portion 42 and presses against the spread of the first snap - fit portion 42. The second extension portion 52 is disposed on the left side of the second snap - fit portion 43 and presses against the spread of the second snap - fit portion 43.

[0051] The structures of the first terminal pressing portion 53 and the second terminal pressing portion 54 are not limited to those of the above - described embodiment and may be changed. For example, FIG. 13 is a bottom view showing the holder 6 and the switch body 2 of the switch device 1 according to the fourth modification. FIG. 14 is a perspective view of the first holder member 6A of the switch device 1 according to the fourth modification. As shown in FIGS. 13 and 14, the first terminal pressing portion 53 extends straight from the inner surface of the holder front wall 33 toward the second terminal 12. The first terminal pressing portion 53 is connected to the first holder side wall 35. The second terminal pressing portion 54 extends straight from the inner surface of the holder front wall 33 toward the third terminal 13. The second terminal pressing portion 54 is connected to the second holder side wall 36.

[0052] The connecting portion 41 may be attached to the first terminal 11 by means other than snap - fit. FIG. 15 is a bottom view showing the holder 6 and the switch body 2 of the switch device 1 according to the fifth modification. In the switch device 1 according to the fifth modification, the connecting portion 41 is attached to the first terminal 11 by press - fitting. The connecting portion 41 includes a first press - fitting portion 58 and a second press - fitting portion 59. The first press - fitting portion 58 is disposed on the right side of the first terminal 11. The first press - fitting portion 58 extends from the inner surface of the front wall 33 of the holder to the inner surface of the rear wall 34 of the holder. The first press - fitting portion 58 includes a first recess 61. The second press - fitting portion 59 is disposed on the left side of the first terminal 11. The second press - fitting portion 59 extends from the inner surface of the front wall 33 of the holder to the inner surface of the rear wall 34 of the holder. The second press - fitting portion 59 includes a second recess 62. The first terminal 11 is press - fitted between the first recess 61 and the second recess 62.

[0053] FIG. 16 is a rear view showing the first holder member 6A and the switch body 2 of the switch device 1 according to the sixth modification. FIG. 17 is a bottom view showing the holder 6 and the switch body 2 of the switch device 1 according to the sixth modification. In the switch device 1 according to the sixth modification, the switch housing 10 includes a bottom portion 63 and a groove portion 64. The bottom portion 63 has an outer shape smaller than the outer shape of the base 15. The bottom portion 63 projects downward from the base 15. The bottom portion 63 is disposed within the holder 6. The groove portion 64 is provided on the side surface of the bottom portion 63. The holder 6 includes a convex portion 65. The convex portion 65 is provided at the edge of the second opening 22 on the upper surface of the holder 6. The convex portion 65 projects inward of the holder 6. The convex portion 65 is locked to the groove portion 64. Thereby, the holder 6 is prevented from coming off downward. In this case, the holding of the holder 6 by snap - fit may be omitted.

[0054] In the above-described embodiment, the first snap-fit portion 42 and the second snap-fit portion 43 extend rearward from the inner surface of the front wall 33 of the holder. However, as shown in FIG. 17, the first snap-fit portion 42 and the second snap-fit portion 43 may extend forward from the inner surface of the rear wall 34 of the holder. In the above-described embodiment, the first extending portion 51 and the second extending portion 52 extend forward from the rear wall 34 of the holder. However, as shown in FIG. 17, the first extending portion 51 and the second extending portion 52 may extend rearward from the inner surface of the front wall 33 of the holder. As shown in FIG. 17, the third terminal 13 may be omitted.

Industrial Applicability

[0055] According to the present invention, in a switch device including a holder that covers a sealing member, the holder is miniaturized.

Explanation of Reference Numerals

[0056] 1: Switch device, 2: Switch body, 3: First lead wire, 5: Sealing member, 6: Holder, 6A: First holder member, 6B: Second holder member, 10: Switch housing, 11: First terminal, 12: Second terminal, 38A: First mounting hole, 40A: First mounting protrusion, 42: First snap-fit portion, 43: Second snap-fit portion, 48: First notch, 50: Snap-fit holding portion, 51: First extending portion, 52: Second extending portion, 53: First terminal pressing portion, 55: Lead protection portion, 56: First lead hole, 58: First press-fitting portion, 59: Second press-fitting portion, 63: Bottom portion, 64: Groove portion, 65: First convex portion

Claims

1. A switch device comprising a switch body including a switch housing and a first terminal protruding from the switch housing, a lead wire including a tip fixed to the first terminal, a sealing member for sealing the first terminal and the tip, and a holder covering the sealing member. The holder includes a connection portion disposed within the holder, and the switch body is fixed by attaching the connection portion to the first terminal. Switch device.

2. The connection portion is attached to the first terminal by a snap fit. The switch device according to Claim 1.

3. The first terminal includes a notch. By engaging the connection portion with the notch, the holder is prevented from coming off in the direction in which the first terminal protrudes from the switch housing. The switch device according to Claim 2.

4. The connection portion includes a first snap fit portion extending from the inner surface of the holder, disposed on a first side with respect to the first terminal, and engaging with the first terminal; and a second snap fit portion extending from the inner surface of the holder, disposed on a second side opposite to the first side with respect to the first terminal, and engaging with the first terminal. The switch device according to Claim 2.

5. The holder includes a snap fit holding portion for suppressing the spread of the first snap fit portion and the second snap fit portion. The snap fit holding portion includes a first extending portion extending from the inner surface of the holder and disposed on the first side of the first snap fit portion; and a second extending portion extending from the inner surface of the holder and disposed on the second side of the second snap fit portion. The switch device according to Claim 3.

6. The switch body includes a second terminal protruding from the switch housing. The holder includes a terminal pressing portion extending from the inner surface of the holder. The terminal pressing portion contacts the second terminal from a direction opposite to the direction in which the connection portion is locked to the first terminal by the snap fit. The switch device according to Claim 2.

7. The terminal pressing portion extends obliquely from the inner surface of the holder toward the second terminal. The switch device according to Claim 6.

8. The switch body includes a second terminal protruding from the switch housing. The connection portion includes a first snap fit portion extending from the inner surface of the holder and engaging with the first terminal. ​ ​ ​ A second snap fit portion that extends from the inner surface of the holder and engages with the second terminal; comprising The switch device according to claim 2.

9. The holder includes a first holder member including a mounting projection, a second holder member including a mounting hole and separate from the first holder member, comprising The first holder member is attached to the second holder member by press-fitting the mounting projection into the mounting hole. The switch device according to claim 1.

10. The connecting portion is attached to the first terminal by press-fitting. The switch structure according to claim 1.

11. The connecting portion includes a first press-fitting portion that includes a first recess and extends from the inner surface of the holder, a second press-fitting portion that includes a second recess and extends from the inner surface of the holder, comprising The first terminal is press-fitted between the first recess and the second recess. The switch device according to claim 10.

12. The switch housing includes a bottom portion disposed within the holder, a groove portion provided on a side surface of the bottom portion, comprising The holder includes a convex portion that protrudes toward the inside of the holder, By engaging the convex portion with the groove portion, the holder is prevented from coming off in a direction in which the first terminal protrudes from the switch housing. The switch device according to claim 1.

13. The holder includes a lead hole and a lead protection portion that protrudes from a side surface of the holder, The lead wire extends through the lead hole. The switch device according to claim 1.

14. The outer shape of the holder is below the outer shape of the switch housing. The switch device according to claim 1.

15. The outer shape of the holder is arranged flush with the outer shape of the switch housing. The switch device according to claim 1.

Images