Ship-shaped switch

Abstract

The utility model discloses a rocker switch which is more stable in contact, convenient to assemble and not easy to generate carbon deposition. According to the technical scheme, the key comprises a shell, a key connected to the upper end of the shell through a shaft, a common terminal and a corner terminal, the common terminal and the corner terminal are arranged at the bottom of the shell side by side, the key is provided with an elastic positioning piece through a fixing base at the bottom, and the bottom of the shell is provided with a gear positioning groove matched with the elastic positioning piece. The top of the common terminal is provided with a continuous normally-closed arc-shaped contact surface, one side of the top of the edge pin terminal is provided with a normally-open arc-shaped contact surface, the other side of the top of the edge pin terminal is provided with a circuit breaking gap, the fixed seat is provided with a moving contact rod capable of moving up and down, and the fixed seat is internally provided with a first reset spring abutting against the middle of the moving contact rod. One end of the moving feeler lever extends out of the fixed seat and is normally closed with the normally-closed arc-shaped contact surface, and the other end of the moving feeler lever extends out of the fixed seat and is in on / off fit with the normally-open arc-shaped contact surface.

Description

Technical Field

[0001] This utility model belongs to the field of switches, and particularly relates to a rocker switch. Background Technology

[0002] A rocker switch, also called a rocker switch, is commonly used as a power switch in electronic devices. A traditional rocker switch structure includes: a housing, a button at the top of the housing, a central terminal at the bottom center of the housing, and side terminals on both sides of the bottom center. A rocker is located on top of the central terminal, and a conductive slider rests against the rocker at the bottom of the button. Normally, when the button is tilted left or right, the moving contact at the end of the rocker contacts the stationary contact at the top of the side terminal, forming a circuit; when the button is in the central position, the moving contact at the end of the rocker separates from the stationary contact at the top of the side terminal, forming an open circuit. A drawback is that carbon buildup can form between the contacts over time, leading to poor contact. To address this issue, the applicant previously applied for a Chinese utility model patent with authorization publication number "CN203812783 U" entitled "A Novel Rocker Switch," in which the moving and stationary contacts contact or disconnect via side friction, effectively removing surface carbon buildup during the friction process. However, there are still some drawbacks: 1. Due to the very small contact area of ​​the contacts, the requirements for the accuracy of the contacts and the installation position are very high, which is not conducive to the production, assembly and stability of the switch; 2. During the opening or closing operation, an electric arc (arc) is likely to occur between the two contacts. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rocker switch with more stable contact, easier assembly and less carbon buildup.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a housing, a button shafted to the upper end of the housing, and a common terminal and a side terminal arranged side by side at the bottom of the housing. The button is provided with an elastic positioning element through a fixed base at the bottom. The bottom of the housing is provided with a position positioning groove that cooperates with the elastic positioning element. The common terminal is provided with a continuous normally closed arc-shaped contact surface at the top. The side terminal is provided with a normally open arc-shaped contact surface on one side and a break-off notch on the other side. The fixed base is provided with a movable contact rod that can move up and down. The fixed base is provided with a first return spring that abuts against the middle of the movable contact rod. One end of the movable contact rod extends out of the fixed base and is normally closed with the normally closed arc-shaped contact surface, and the other end extends out of the fixed base and is in a through / off engagement with the normally open arc-shaped contact surface.

[0005] The rocker switch is characterized in that: the side terminals include a first side terminal and a second side terminal spaced apart; the normally open arc-shaped contact surface includes a first normally open arc-shaped contact surface located on the top left side of the first side terminal and a second normally open arc-shaped contact surface located on the top right side of the second side terminal; the circuit breaking notch includes a first circuit breaking notch located on the top right side of the first side terminal and a second circuit breaking notch located on the top left side of the second side terminal; and the moving contact rod consists of two rods symmetrically arranged at both ends of the fixed base.

[0006] The rocker switch is characterized in that: the side terminals include a third side terminal and a fourth side terminal spaced apart; the normally open arc-shaped contact surface includes a third normally open arc-shaped contact surface located on the top right side of the third side terminal and a fourth normally open arc-shaped contact surface located on the top right side of the fourth side terminal; the circuit breaking notch includes a third circuit breaking notch located on the top left side of the third side terminal and a fourth circuit breaking notch located on the top left side of the fourth side terminal; and the moving contact rod consists of two rods symmetrically arranged at both ends of the fixed base.

[0007] The rocker switch is characterized in that: the normally closed arc-shaped contact surface includes a fully normally closed arc-shaped contact surface and a semi-normally closed arc-shaped contact surface.

[0008] The rocker switch is characterized in that: the elastic positioning element includes a slider movably disposed at the bottom of the fixed base, a second return spring disposed at the upper end of the slider, and a steel ball disposed at the lower end of the slider.

[0009] The rocker switch is characterized in that: a sealing ring and an end cap that applies pressure to the sealing ring are provided at the upper end of the housing.

[0010] The rocker switch is characterized in that: the two ends of the moving contact rod are close to the inner wall of the housing.

[0011] The advantages of this rocker switch are: 1. It uses the moving contact rod to make frictional contact with the arc-shaped contact surface at the top of the common terminal and the edge terminal, which can effectively remove surface carbon and ensure contact stability; 2. During the opening or closing operation, the arc-shaped contact surface between the moving contact rod and the common terminal remains normally closed (in contact), which can effectively reduce electric arc (arc pulling).

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of a boat-shaped switch according to the present invention.

[0014] Figure 2This is an exploded view of the boat-shaped switch of this utility model.

[0015] Figure 3 , Figure 4 This is a schematic diagram of the conductive components of a boat-shaped switch according to the present invention.

[0016] Figure 5 This is a cross-sectional view of the second embodiment of the present invention, the boat-shaped switch;

[0017] Figure 6 This is an exploded view of the second embodiment of the boat-shaped switch of this utility model;

[0018] Figure 7 , Figure 8 This is a schematic diagram of the conductive components of the boat-shaped switch in the second embodiment of this utility model. Detailed Implementation

[0019] like Figures 1 to 8 As shown, the rocker switch of this utility model includes a housing 1, a button 2 shafted to the upper end of the housing 1, and a common terminal 3 and a side terminal 4 arranged side-by-side at the bottom of the housing 1. The common terminal 3 is typically connected to a power source, and the side terminal 4 is typically connected to an electronic device. The button 2 is provided with an elastic positioning element 8 via a fixed base 5 at the bottom. The bottom of the housing 1 is provided with a position positioning groove 9 that cooperates with the elastic positioning element 8. The top of the common terminal 3 is provided with a continuous normally closed arc-shaped contact surface, and the top of the side terminal 4 is provided with a normally open arc-shaped contact surface on one side and a break-off notch on the other side. The fixed base 5 is provided with a movable contact rod 6 that can move up and down, and the fixed base 5 is provided with a first return spring 7 that abuts against the middle of the movable contact rod 6. One end of the movable contact rod 6 extends out of the fixed base 5 and is normally closed with the normally closed arc-shaped contact surface, and the other end of the movable contact rod 6 extends out of the fixed base 5 and is in a through / off engagement with the normally open arc-shaped contact surface.

[0020] Preferably, the side terminal 4 includes a first side terminal 41 and a second side terminal 42 spaced apart. The normally open arc-shaped contact surface includes a first normally open arc-shaped contact surface 111 located on the top left side of the first side terminal 41 and a second normally open arc-shaped contact surface 112 located on the top right side of the second side terminal 42. The circuit breaker notch 12 includes a first circuit breaker notch 121 located on the top right side of the first side terminal 41 and a second circuit breaker notch 122 located on the top left side of the second side terminal 42. The moving contact rod 6 consists of two rods symmetrically arranged at both ends of the fixed base 5. This rocker switch is mainly used for turn signals on motorcycles (or electric vehicles). When the button 2 is in the middle position, one end of each of the two moving contact rods 6 is in contact with the common terminal 3, and the other end is disconnected from the first side terminal 41 and the second side terminal 42 respectively (that is, the ends are placed in the first circuit break 121 and the second circuit break 122); when the button 2 is swung to both sides, the moving contact rods 6 are in contact with the first side terminal 41 and the second side terminal 42 respectively.

[0021] Preferably, the side terminal 4 includes a third side terminal 43 and a fourth side terminal 44 spaced apart. The normally open arc-shaped contact surface includes a third normally open arc-shaped contact surface 113 located on the top right side of the third side terminal 43 and a fourth normally open arc-shaped contact surface 114 located on the top right side of the fourth side terminal 44. The circuit breaker notch 12 includes a third circuit breaker notch 123 located on the top left side of the third side terminal 43 and a fourth circuit breaker notch 124 located on the top left side of the fourth side terminal 44. Two moving contact rods 6 are symmetrically arranged at both ends of the fixed base 5. This rocker switch is mainly used for high / low beam switching on motorcycles (or electric vehicles). When the button 2 is swung to the left position, one end of each of the two moving contact rods 6 contacts the common terminal 3, and the other end is disconnected from the third side terminal 43 and the fourth side terminal 44 respectively (i.e., the ends are placed inside or above the third circuit break 123 and the fourth circuit break 124); when the button 2 is swung to the middle position, the left moving contact rod 6 contacts the fourth side terminal 44, i.e., the low beam is turned on; when the button 2 is swung to the right position, the two moving contact rods 6 contact the third side terminal 43 and the fourth side terminal 44 respectively, i.e., the high beam is turned on.

[0022] Preferably, the normally closed arc-shaped contact surface includes a fully normally closed arc-shaped contact surface 101 and a semi-normally closed arc-shaped contact surface 102. When the fully normally closed arc-shaped contact surface 101 is provided on the upper end of the common terminal 3, both moving contact rods 6 of the button 2 are in contact with the common terminal 3 at any position, resulting in better stability. When the semi-normally closed arc-shaped contact surface 102 is provided on the upper end of the common terminal 3, sometimes only one moving contact rod 6 is in contact with the common terminal 3, and the performance is close to that of the fully normally closed arc-shaped contact surface 101, but it can reduce materials and lower costs.

[0023] Preferably, the elastic positioning member 8 includes a slider 13 movably disposed at the bottom of the fixed base 5, a second return spring 14 disposed at the upper end of the slider 13, and a steel ball 15 disposed at the lower end of the slider 13. This structure enables more stable positioning with the gear positioning groove 9.

[0024] Preferably, the upper end of the housing 1 is provided with a sealing ring 16 and an end cap 17 that applies pressure to the sealing ring 16, in order to achieve the waterproof performance of the switch.

[0025] Preferably, both ends of the movable contact rod 6 are close to the inner wall of the housing 1. The inner wall of the housing 1 is used to position the movable contact rod 6 and prevent it from falling off.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A boat type switch, comprising a shell (1), a key (2) connected to the upper end of the shell (1), and a common terminal (3) and a leg terminal (4) arranged side by side at the bottom of the shell (1), the key (2) being provided with an elastic positioning member (8) through a fixing seat (5) at the bottom, and the bottom of the shell (1) being provided with a gear positioning groove (9) matched with the elastic positioning member (8), characterized in that: The common terminal (3) is provided with a continuous normally closed arc contact surface on the top, the edge foot terminal (4) is provided with a normally open arc contact surface on one side of the top and a breakage gap on the other side, the fixed base (5) is provided with a movable moving contact rod (6) which can move up and down, the fixed base (5) is provided with a first reset spring (7) which abuts against the middle part of the moving contact rod (6), one end of the moving contact rod (6) extends out of the fixed base (5) and is always closed with the normally closed arc contact surface, the other end of the moving contact rod (6) extends out of the fixed base (5) and is in on / off cooperation with the normally open arc contact surface. ​ 2. The boat switch according to claim 1, characterized in that: The edge foot terminal (4) comprises a first edge foot terminal (41) and a second edge foot terminal (42) which are arranged at intervals, the normally open arc contact surface comprises a first normally open arc contact surface (111) arranged on the left side of the top of the first edge foot terminal (41) and a second normally open arc contact surface (112) arranged on the right side of the top of the second edge foot terminal (42), the breakage gap (12) comprises a first breakage gap (121) arranged on the right side of the top of the first edge foot terminal (41) and a second breakage gap (122) arranged on the left side of the top of the second edge foot terminal (42), and the moving contact rod (6) is two and symmetrically arranged at the two ends of the fixed base (5).

3. The boat switch of claim 1, wherein: The edge foot terminal (4) comprises a third edge foot terminal (43) and a fourth edge foot terminal (44) which are arranged at intervals, the normally open arc contact surface comprises a third normally open arc contact surface (113) arranged on the right side of the top of the third edge foot terminal (43) and a fourth normally open arc contact surface (114) arranged on the right side of the top of the fourth edge foot terminal (44), the breakage gap (12) comprises a third breakage gap (123) arranged on the left side of the top of the third edge foot terminal (43) and a fourth breakage gap (124) arranged on the left side of the top of the fourth edge foot terminal (44), and the moving contact rod (6) is two and symmetrically arranged at the two ends of the fixed base (5).

4. The boat switch of claim 1, wherein: The normally closed arc contact surface comprises a full normally closed arc contact surface (101) and a half normally closed arc contact surface (102).

5. The boat switch of claim 1, wherein: The elastic positioning member (8) comprises a sliding block (13) movably arranged on the bottom of the fixed base (5), a second reset spring (14) arranged on the upper end of the sliding block (13) and a steel ball (15) arranged on the lower end of the sliding block (13).

6. The boat switch of claim 1, wherein: The upper end of the shell (1) is provided with a sealing ring (16) and an end cover (17) which applies pressure to the sealing ring (16).

7. The boat switch of claim 1, wherein: The end faces of the moving contact rod (6) are close to the inner wall of the shell (1). The upper end of the shell (1) is provided with a sealing ring (16) and an end cover (17) which applies pressure to the sealing ring (16).

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