Miniature push-pull switch

Abstract

The utility model discloses a miniature push-pull switch which comprises a first power connection terminal arranged between an upper cover and a base, the top of the first power connection terminal is provided with a supporting portion used for supporting a conducting strip, at least one side of the first power connection terminal is provided with a fixing portion, and the upper cover is provided with a first receding notch corresponding to the fixing portion. The side wall of the base is provided with a second abdicating notch corresponding to the fixing part, the bottom of the base is provided with a bearing part corresponding to the fixing part, the first power connection terminal is arranged on the base, the fixing part is arranged in the second abdicating notch, after the upper cover is connected with the base, the bearing part is inserted into the first abdicating notch, and the bearing part and the first abdicating notch clamp the fixing part. According to the utility model, the first power connection terminal is positioned and installed in the second abdicating notch of the base through the fixing part, and then the fixing part is clamped through the first abdicating notch of the upper cover and the bearing part, so that the first power connection terminal is fixed stably.

Description

Technical Field

[0001] The utility model relates to the technical field of push-pull switches, in particular to a miniature push-pull switch. Background Art

[0002] At present, the miniature push-pull switch on the market includes a base and an upper cover, between which a push-pull base, a first power terminal, a second power terminal and a conductive sheet are arranged, and the push-pull base drives the conductive sheet to move between the first power terminal and the second power terminal to realize power on or off of the first power terminal and the second power terminal. Due to the volume limitation of the miniature push-pull switch, the creepage distance between the first power terminal and the second power terminal is short, which poses a safety hazard, and cannot withstand large currents, so it has a limited scope of application.

[0003] Moreover, the first power terminal or the second power terminal is clamped and fixed by the base and the upper cover, and the first power terminal or the second power terminal is not fixed firmly enough. Utility Model Content

[0004] The utility model aims to provide a miniature push-pull switch with a more reliable fixing of a first wiring terminal.

[0005] The purpose of the utility model is achieved in this way.

[0006] A miniature push-pull switch comprises a first power terminal arranged between an upper cover and a base, a support portion for supporting a conductive sheet is arranged on the top of the first power terminal, a fixing portion is arranged on at least one side of the first power terminal, a first clearance notch is arranged on the upper cover corresponding to the fixing portion, a second clearance notch is arranged on the side wall of the base corresponding to the fixing portion, a supporting portion is arranged on the bottom of the base corresponding to the fixing portion, the first power terminal is seated on the base, the fixing portion is placed in the second clearance notch, after the upper cover and the base are connected, the supporting portion is inserted into the first clearance notch, and the supporting portion and the first clearance notch clamp the fixing portion.

[0007] In the utility model, the first electrical terminal is positioned and installed in the second paving notch of the base through the fixing part, and then the fixing part is clamped by the first paving notch of the upper cover and the supporting part, so that the first electrical terminal is fixed firmly.

[0008] The above technical solution can be further improved as follows.

[0009] Furthermore, the fixing parts are respectively provided on both sides of the first power terminal. Both sides of the first power terminal are fixed, so the installation is more firm.

[0010] Furthermore, a second power terminal is provided between the upper cover and the base, and the base is provided with a first block in the vertical direction corresponding to the second power terminal and the first power terminal, and the first block extends a first shielding portion toward the second power terminal, and a first slot is formed between the first shielding portion and the base, and the inner end of the second power terminal is inserted into the first slot. The first block and the first shielding portion increase the creepage distance between the second power terminal and the first power terminal, improve safety, and meet higher voltage requirements.

[0011] Furthermore, the base is provided with a first mounting groove corresponding to the second electrical terminal, the first stopper constitutes the side wall inside the first mounting groove, the first mounting groove is provided with a first opening outside for the second electrical terminal to extend out of the base, first convex parts are provided on both sides of the first mounting groove corresponding to the first opening, and first concave parts are provided on both sides of the corresponding second electrical terminal, the second electrical terminal is placed in the first mounting groove, and the first convex part and the first concave part are matched in a concave-convex manner. The second electrical terminal is fixed more firmly.

[0012] Furthermore, first convex ribs are provided on both sides of the first installation slot corresponding to the side surfaces of the second electrical terminal. The second electrical terminal is not easy to move sideways.

[0013] Furthermore, a third power terminal is provided between the upper cover and the base, and the base is provided with a second block in the vertical direction corresponding to the third power terminal and the first power terminal, and the second block extends a second shielding portion toward the third power terminal, and a second slot is formed between the second shielding portion and the base, and the inner end of the third power terminal is inserted into the second slot. The second block and the second shielding portion increase the creepage distance between the third power terminal and the first power terminal, improve safety, and meet higher voltage requirements.

[0014] Furthermore, the base is provided with a second mounting groove corresponding to the third electrical terminal, the second stopper constitutes the side wall inside the second mounting groove, the second mounting groove is provided with a second opening outside for the third electrical terminal to extend out of the base, the second mounting groove is provided with second convex parts on both sides corresponding to the second opening, and the corresponding third electrical terminal is provided with second concave parts on both sides, the third electrical terminal is placed in the second mounting groove, and the second convex part and the second concave part are matched. The third electrical terminal is fixed more firmly.

[0015] Furthermore, the first power terminal is placed between the third power terminal and the second power terminal, one side of the first power terminal is provided with the fixing portion, and the fixing portion on the other side of the first power terminal forms a power terminal. The power terminals of the first power terminal and the third power terminal are separately arranged so as not to interfere with each other.

[0016] Furthermore, a cut-out portion is provided on one side of the first power terminal close to the third power terminal, the first power terminal is seated in the base, and the second stopper protrudes and is placed in the cut-out portion. The cut-out portion and the second stopper cooperate to limit the first power terminal from lateral separation from the base, and at the same time, the cut-out portion allows the first power terminal to retain a larger width to accommodate a larger current.

[0017] Furthermore, the first electrical terminal is bent upwards on one side close to the second electrical terminal to form the support portion, and a third stopper is provided between the corresponding support portion of the base and the first stopper. The third stopper increases the creepage distance between the second electrical terminal and the first electrical terminal.

[0018] In the utility model, the first power terminal is positioned and installed in the second clearance notch of the base through the fixing part, and then the first clearance notch of the upper cover and the clamping fixing part of the supporting part are used to fix the first power terminal firmly. The second power terminal and the third power terminal are firmly installed. A long creepage distance is retained between the first power terminal and the second power terminal and the third power terminal, respectively, to improve safety and meet higher voltage requirements. The cut-off part of the first power terminal cooperates with the second stopper to limit the first power terminal from detaching from the base laterally. At the same time, the cut-off part allows the first power terminal to retain a larger width to accommodate a larger current. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of embodiment 1.

[0020] Figure 2 This is a schematic diagram of the decomposed structure of Example 1.

[0021] Figure 3 It is a schematic cross-sectional structure diagram of the first embodiment.

[0022] Figure 4 This is a schematic diagram of the base structure in Example 1.

[0023] Figure 5 It is a three-dimensional structural diagram of the second embodiment.

[0024] Figure 6 This is a schematic diagram of the decomposed structure of Example 2.

[0025] Figure 7 It is a schematic cross-sectional structure diagram of the second embodiment.

[0026] Figure 8 It is a three-dimensional structural diagram of embodiment 3.

[0027] Fig. 9 This is a schematic diagram of the decomposition structure of Example 3.

[0028] Fig.10 It is a schematic diagram of the cross-sectional structure of embodiment 3.

[0029] Fig.11 This is a schematic diagram of the base structure in Example 3.

[0030] Fig.12 It is a three-dimensional structural diagram of embodiment 4.

[0031] Fig.13 This is a schematic diagram of the decomposed structure of Example 4.

[0032] Fig.14 It is a schematic cross-sectional structure diagram of the fourth embodiment. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Example 1, see Figure 1-4 As shown, a miniature push-pull switch includes an upper cover 1, a base 2, a push-pull seat 3, a spring 31, a sleeve 32, a conductive sheet 4, a first power terminal 5 and a second power terminal 6.

[0035] The inner end of the first power terminal 5 is bent upward to form a support portion 51, and the inner end of the first power terminal 5 near the support portion 51 has two sides extending horizontally relative to the first power terminal 5. In this embodiment, the outer end of the first power terminal 5 is bent downward to form a power terminal, and a clearance hole 53 is provided near the outer end of the first power terminal 5.

[0036] The outer end of the second power terminal 6 is bent downward to form a power terminal, and a first recess 61 is provided near the outer end of the second power terminal 6. A static contact is provided near the top surface of the inner end of the second power terminal 6.

[0037] The upper cover 1 is provided with a movable hole 11 for the push-pull seat 3 to extend out, and two sides of the upper cover 1 corresponding to the fixing portion 52 are provided with first paving notches 12 with openings located on the bottom surface.

[0038] The side wall of the base 2 is provided with a second clearance notch 20 corresponding to the fixing portion 52, and the bottom of the base 2 is provided with a supporting portion 21 corresponding to the fixing portion 52. The base 2 is provided with a first stopper 22 in the vertical direction corresponding to the second power terminal 6 and the first power terminal 5. The first stopper 22 extends a first shielding portion 23 toward the second power terminal 6, and a first slot 80 is formed between the first shielding portion 23 and the base 2. Among them, the base 2 is provided with a first mounting groove 8 corresponding to the second power terminal 6, the first stopper 22 constitutes the side wall of the inner side of the first mounting groove 8, the outer side of the first mounting groove 8 is provided with a first opening 81 for the second power terminal 6 to extend out of the base 2, the first mounting groove 8 is provided with a first convex portion 82 on both sides corresponding to the first opening 81, and the first mounting groove 8 is provided with a first convex rib 83 on both sides. The base 2 is provided with a third stopper 24 between the first stopper 22 and the second clearance notch 20. In this embodiment, the base 2 is provided with a convex column 25 corresponding to the clearance hole 53.

[0039] The fixing portion 52 of the first power terminal 5 is aligned with the second clearance notch 20 and sits in the base 2, the support portion 51 abuts against the third stopper 24, and the boss 25 passes through the clearance hole 53. The second power terminal 6 is placed in the first mounting groove 8, the inner end of the second power terminal 6 is inserted into the first clamping groove 80, the first convex portion 82 and the first concave portion 61 are matched, and the two sides of the second power terminal 6 abut against the first convex rib 83. The middle part of the conductive sheet 4 is rotatably arranged on the support portion 51. The top of the push-pull seat 3 extends out from the movable hole 11, and the bottom surface of the push-pull seat 3 is provided with a mounting hole 30, and the spring 31 and the sleeve 32 are placed in the mounting hole 30.

[0040] After the upper cover 1 and the base 2 are snap-fitted together, the supporting portion 21 is inserted into the first clearance notch 12, and the supporting portion 21 and the first clearance notch 12 clamp the fixing portion 52, that is, the upper cover 1 and the base 2 clamp the push-pull seat 3, the spring 31, the sleeve 32, the conductive sheet 4, the first electrical terminal 5 and the second electrical terminal 6. The elastic force of the spring 31 pushes the sleeve 32 downward to abut against the conductive sheet 4.

[0041] The micro push-pull switch is in the power-off state: the push-pull seat 3 moves to the right side, that is, the sleeve 32 moves to the right side of the support part 51, and the sleeve 32 moves the right end of the conductive sheet 4 downward. At this time, the moving contact at the left end of the conductive sheet 4 is away from the static contact of the second power terminal 6, and the power is cut off between the first power terminal 5 and the second power terminal 6.

[0042] The micro push-pull switch is powered on: the push-pull seat 3 moves to the left, that is, the sleeve 32 moves to the left side of the support portion 51, the sleeve 32 causes the left end of the conductive sheet 4 to move downward and abut against the protruding column 25, the moving contact at the left end of the conductive sheet 4 moves downward and abuts against the static contact of the second power terminal 6, and power is supplied between the first power terminal 5 and the second power terminal 6.

[0043] Example 2, see Figure 5-7 As shown, the difference from the first embodiment is that the first power terminal 5 and the second power terminal 6 have different power terminals. In this embodiment, the outer end of the first power terminal 5 horizontally extends out of the base 2 to form a power terminal, and the outer end of the second power terminal 6 horizontally extends out of the base 2 to form a power terminal.

[0044] Example 3, see Figure 8-11 As shown, the difference between it and the first embodiment is that the structures of the base 2 and the first power terminal 5 are different. This embodiment also includes a third power terminal 7. Specifically, the outer end of the third power terminal 7 is bent downward to form a power terminal, and second recesses 71 are provided near the outer ends of the third power terminal 7 on both sides, and a static contact is provided near the inner end of the third power terminal 7.

[0045] The base 2 is provided with a second stopper 26 in the vertical direction corresponding to the third electrical terminal 7 and the first electrical terminal 5. The second stopper 26 extends a second shielding portion 27 toward the third electrical terminal 7, and a second slot 90 is formed between the second shielding portion 27 and the base 2. The base 2 is provided with a second mounting slot 9 corresponding to the third electrical terminal 7. The second stopper 26 constitutes the inner side wall of the second mounting slot 9. The outer side of the second mounting slot 9 is provided with a second opening 91 for the third electrical terminal 7 to extend out of the base 2. Second convex portions 92 are provided on both sides of the second mounting slot 9 corresponding to the second opening 91, and second convex ribs 93 are provided on both sides of the second mounting slot 9. The third electrical terminal 7 is placed in the second mounting slot 9, and the inner end of the third electrical terminal 7 is inserted into the second slot 90. The second convex portion 92 and the second concave portion 71 are matched with each other, and the two sides of the third electrical terminal 7 and the corresponding second convex ribs 93 are abutted.

[0046] The first power terminal 5 is placed between the third power terminal 7 and the second power terminal 6. The fixing portion 52 is provided on one side of the first power terminal 5. The fixing portion 52 on the other side of the first power terminal 5 extends out of the base 2 and bends downward to form a power connection end. The first power terminal 5 is bent upward near the second power terminal 6 to form the supporting portion 51. A cut-off portion 50 is provided on the side of the first power terminal 5 near the third power terminal 7. The first power terminal 5 is seated in the base 2, and the second stopper 26 protrudes and is placed in the cut-off portion 50.

[0047] The micro push-pull switch of this embodiment is a one-input and two-output switch.

[0048] When the push-pull seat 3 moves to the right, that is, the sleeve 32 moves to the right side of the support portion 51, the sleeve 32 moves the right end of the conductive sheet 4 downwardly and abuts against the abutting static contact of the third power terminal 7. At this time, the moving contact at the left end of the conductive sheet 4 is away from the static contact of the second power terminal 6, the first power terminal 5 and the second power terminal 6 are powered off, and the first power terminal 5 and the third power terminal 7 are powered on. When the push-pull seat 3 moves to the left, that is, the sleeve 32 moves to the left side of the support portion 51, the sleeve 32 moves the left end of the conductive sheet 4 downwardly, and the moving contact at the left end of the conductive sheet 4 abuts against the static contact of the second power terminal 6. At this time, the moving contact at the right end of the conductive sheet 4 is away from the static contact of the third power terminal 7, the first power terminal 5 and the second power terminal 6 are powered on, and the first power terminal 5 and the third power terminal 7 are powered off.

[0049] Example 4, see Figure 12-14 As shown, the difference between it and the third embodiment is that the power connection ends of the first power terminal 5, the second power terminal 6 and the third power terminal 7 are different. In this embodiment, the outer end of the first power terminal 5 horizontally extends out of the base 2 to form a power connection end, the outer end of the second power terminal 6 horizontally extends out of the base 2 to form a power connection end, and the outer end of the third power terminal 7 horizontally extends out of the base 2 to form a power connection end.

Claims

1. A miniature push-pull switch, comprising a first power terminal (5) disposed between an upper cover (1) and a base (2), wherein a support portion (51) for supporting a conductive sheet (4) is disposed on the top of the first power terminal (5), wherein: At least one side of the first power connection terminal (5) is provided with a fixing portion (52); the upper cover (1) is provided with a first clearance notch (12) corresponding to the fixing portion (52); a side wall of the base (2) is provided with a second clearance notch (20) corresponding to the fixing portion (52); a bottom of the base (2) is provided with a supporting portion (21) corresponding to the fixing portion (52); the first power connection terminal (5) is seated on the base (2); the fixing portion (52) is placed in the second clearance notch (20); after the upper cover (1) and the base (2) are connected, the supporting portion (21) is inserted into the first clearance notch (12); the supporting portion (21) and the first clearance notch (12) clamp the fixing portion (52).

2. The miniature push-pull switch according to claim 1, characterized in that: The fixing parts (52) are respectively provided on both sides of the first power terminal (5).

3. The miniature push-pull switch according to claim 1, characterized in that: The invention comprises a second power terminal (6) arranged between the upper cover (1) and the base (2); the base (2) is provided with a first stopper (22) in a vertical direction corresponding to the second power terminal (6) and the first power terminal (5); the first stopper (22) extends a first shielding portion (23) in the direction of the second power terminal (6); a first slot (80) is formed between the first shielding portion (23) and the base (2); and the inner end of the second power terminal (6) is inserted into the first slot (80).

4. The miniature push-pull switch according to claim 3 is characterized in that: The base (2) is provided with a first mounting groove (8) corresponding to the second power terminal (6); the first stopper (22) constitutes a side wall inside the first mounting groove (8); the outside of the first mounting groove (8) is provided with a first opening (81) for the second power terminal (6) to extend out of the base (2); first convex portions (82) are provided on both sides of the first mounting groove (8) corresponding to the first opening (81); first concave portions (61) are provided on both sides of the corresponding second power terminal (6); the second power terminal (6) is placed in the first mounting groove (8); the first convex portion (82) and the first concave portion (61) are matched in a concave-convex manner.

5. The miniature push-pull switch according to claim 4, characterized in that: First convex ribs (83) are provided on both sides of the first installation groove (8) corresponding to the side surfaces of the second power connection terminal (6).

6. The miniature push-pull switch according to claim 3, characterized in that: The invention comprises a third power terminal (7) arranged between the upper cover (1) and the base (2); the base (2) is provided with a second stopper (26) in a vertical direction corresponding to the third power terminal (7) and the first power terminal (5); the second stopper (26) extends a second blocking portion (27) in the direction of the third power terminal (7); a second slot (90) is formed between the second blocking portion (27) and the base (2); and the inner end of the third power terminal (7) is inserted into the second slot (90).

7. The miniature push-pull switch according to claim 6, characterized in that: The base (2) is provided with a second mounting groove (9) corresponding to the third power terminal (7); the second stopper (26) constitutes a side wall inside the second mounting groove (9); a second opening (91) is provided outside the second mounting groove (9) for the third power terminal (7) to extend out of the base (2); second convex portions (92) are provided on both sides of the second mounting groove (9) corresponding to the second opening (91); second concave portions (71) are provided on both sides of the corresponding third power terminal (7); the third power terminal (7) is placed in the second mounting groove (9); the second convex portion (92) and the second concave portion (71) are matched in a concave-convex manner.

8. The miniature push-pull switch according to claim 6, characterized in that: The first power terminal (5) is disposed between the third power terminal (7) and the second power terminal (6); one side of the first power terminal (5) is provided with the fixing portion (52); the fixing portion (52) on the other side of the first power terminal (5) forms a power connection end.

9. The miniature push-pull switch according to claim 6, characterized in that: A cut-out portion (50) is provided on one side of the first power terminal (5) close to the third power terminal (7); the first power terminal (5) is seated in the base (2); and the second stopper (26) protrudes and is disposed in the cut-out portion (50).

10. The miniature push-pull switch according to claim 6, characterized in that: The first power terminal (5) is bent upwards on one side close to the second power terminal (6) to form the support portion (51), and a third stopper (24) is provided between the base (2) and the corresponding support portion (51) and the first stopper (22).

Images