Large-current metal button switch

Abstract

The utility model discloses a heavy-current metal button switch. According to the technical scheme, the switch comprises a base, an inner shell arranged at the upper end of the base and a metal outer shell arranged outside the inner shell, a set of wiring terminals are arranged on the base, a contact mechanism is arranged on the wiring terminals, a push rod is arranged in the inner shell, a button is arranged in the metal outer shell, and the push rod is connected with the push rod. The contact mechanism comprises a normally-closed contact mechanism and a normally-open contact mechanism, a first reset spring is arranged below the push rod, the push rod is pushed by the button to enable the contact mechanism to be connected or disconnected, and the normally-closed contact mechanism is composed of a C-shaped static contact rod, a static contact, a linear movable contact rod and a movable contact.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the switch field, especially relates to a metal button switch. BACKGROUND

[0002] Metal button switch refers to the button push transmission mechanism, make the moving contact and static contact according to or off and realize circuit switching switch. The structure of traditional metal button switch includes: base, bushing arranged on the upper end of base and metal shell arranged outside the bushing, a group of terminal pins are arranged on the base, a button is arranged on the top of the shell, the lower end of the button is connected with a push rod, a static contact is arranged on the top of the terminal pin, and a moving contact is arranged on the lower end of the push rod. In order to realize the normally closed of the switch, a peach heart lock structure (self-locking structure) is arranged in the switch, and the peach heart lock structure is mainly composed of peach heart lock groove, lock piece and lock hook. The defects of the traditional metal button switch are that the spacing between the contact and the terminal is small, when it is applied in a large current environment, arc is easy to be generated, and the ring switch is burned. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem to provide a kind of large current metal button switch.

[0004] To solve the above problems, the utility model adopts the technical scheme including: base, inner shell arranged on the upper end of the base and metal shell arranged outside the inner shell, a group of terminal pins are arranged on the base, a contact mechanism is arranged on the terminal pin, a push rod is arranged in the inner shell, a button is arranged in the metal shell, the contact mechanism includes normally closed contact mechanism and normally open contact mechanism, a first reset spring is arranged below the push rod, the push rod is pushed by the button to make the contact mechanism connect or disconnect, and it is characterized in that: the normally closed contact mechanism is composed of "C" shape static contact rod, static contact point, "one" shape moving contact rod and moving contact point, the static contact point is riveted on the upper riveting portion of the "C" shape static contact rod, and the upper end of the terminal pin is riveted on the lower riveting portion of the C shape static contact rod; the "one" shape moving contact rod is arranged in the long groove on the side of the push rod, the moving contact point is riveted on the both ends of the "one" shape moving contact rod, and the second reset spring is arranged on the upper end of the "one" shape moving contact rod.

[0005] The large current metal button switch is characterized in that: the base is provided with a "U"-shaped lock rod, the push rod is provided with a lock groove matched with the "U"-shaped lock rod, and the base is integrally formed with a first partition plate beside the "U"-shaped lock rod.

[0006] The large current metal button switch is characterized in that: the base is provided with a lock rod mounting groove, and the lock rod mounting groove is provided with a lock rod buckle.

[0007] The large-current metal button switch is characterized in that a second partition plate is arranged on the lock rod mounting groove, and the second partition plate extends downward to isolate the wiring terminal.

[0008] The large-current metal button switch is characterized in that the second partition plate is provided with elastic buckles connected to the base on both sides.

[0009] The large-current metal button switch has the following advantages: the wiring terminal is connected with the "C"-shaped static contact rod, the static contact point is riveted on the upper riveting part of the "C"-shaped static contact rod, the spacing between the contact and the wiring terminal is increased, the "C"-shaped static contact rod and the lock rod are isolated by the partition plate, the arc between the contact and the wiring terminal and between the "C"-shaped static contact rod and the lock rod due to small spacing is prevented, and the switch can be applied to a large-current environment.

[0010] The utility model will be further described below in combination with the drawings. DRAWINGS

[0011] Figure 1 is the utility model large-current metal button switch's explosion map;

[0012] Figure 2 is the utility model large-current metal button switch's section view;

[0013] Figure 3 is the utility model large-current metal button switch's internal structure schematic view;

[0014] Figure 4 is the utility model "C"-shaped static contact rod's structure schematic view;

[0015] Figure 5 is the utility model base's structure schematic view. DETAILED DESCRIPTION

[0016] Referring to Figures 1-5As shown, the utility model discloses a high current metal button switch, including base 1, the inner casing 2 of being equipped with on the upper end of base 1 and the metal shell 3 of being equipped with outside inner casing 2. One group of terminal 4 is equipped on base 1, and contact mechanism 5 is equipped on terminal 4. Push rod 6 is equipped in inner casing 2, and button 7 is equipped in metal shell 3. Contact mechanism 5 includes normally closed contact mechanism 8 and normally open contact mechanism 9. First reset spring 25 is equipped below push rod 6 for the reset after push rod 6 is pressed. Push button 7 push push rod 6 to make contact mechanism 5 connect or disconnect. Normally closed contact mechanism 8 is composed of " C " shape static contact rod 10, static contact point 11, " a " shape dynamic contact rod 12 and dynamic contact point 13, static contact point 11 rivets in the lower side of " C " shape static contact rod 10's upper riveting portion 14, and the lower riveting portion 15 of C shape static contact rod 10 is riveted on the upper end of terminal 4. After connection, static contact point 11, dynamic contact point 13 can be away from the main body of " C " shape static contact rod 10. " A " shape dynamic contact rod 12 is arranged in the long groove 16 of push rod 6 side, and dynamic contact point 13 is riveted in " a " shape dynamic contact rod 12 both ends, and the upper end of " a " shape dynamic contact rod 12 is equipped with second reset spring 17. In default state, static contact point 11, dynamic contact point 13 are normally closed.

[0017] Preferably, " U " shape lock rod 18 is equipped in the middle of base 1, and lock groove 19 that cooperates with " U " shape lock rod 18 is equipped on the both sides of push rod 6. First partition 20 is integrally formed with the side of " U " shape lock rod 18 in base 1, and " C " shape static contact rod 10 leans on first partition 20. By setting first partition 20, " C " shape static contact rod 10 can be isolated with " U " shape lock rod 18, and " C " shape static contact rod 10 is positioned.

[0018] Preferably, for the convenience of " U " shape lock rod 18 is equipped in base 1, lock rod mounting groove 21 is set in the bottom of base 1, and lock rod buckle 22 is set in lock rod mounting groove 21. Through the above structure, " U " shape lock rod 18 can be equipped from the bottom of base 1.

[0019] Preferably, second partition 23 is equipped on lock rod mounting groove 21, and second partition 23 extends downwards and is isolated with terminal 4. Second partition 23 is connected to base 1 through the elastic buckle 24 on both sides. By setting second partition 23, the block of lock rod mounting groove 21 can be used, " U " shape lock rod 18 is prevented from falling off, and adjacent terminal 4 can be isolated, to improve the safety of wiring.

[0020] As described above, the utility model is not limited in any form, although the utility model has disclosed the above-mentioned preferred embodiment, however, is not used to limit the utility model, any person skilled in the art, without departing from the technical scheme range of the utility model, when can utilize the structure and technical content disclosed above make a little change or modification for equivalent implementation examples of equivalent changes, but any simple modification, equivalent change and modification of the above-mentioned implementation examples according to the technical essence of the utility model, all still belong to the technical scheme range of the utility model.

Claims

1. A large current metal button switch, comprising a base (1), an inner housing (2) arranged at the upper end of the base (1), and a metal outer shell (3) arranged outside the inner housing (2), a set of wiring terminals (4) being arranged on the base (1), a contact mechanism (5) being arranged on the wiring terminals (4), a push rod (6) being arranged in the inner housing (2), and a button (7) being arranged in the metal outer shell (3), the contact mechanism (5) comprising a normally closed contact mechanism (8) and a normally open contact mechanism (9), a first reset spring (25) being arranged below the push rod (6), the contact mechanism (5) being turned on or off by pushing the push rod (6) through the button (7), characterized in that: The normally closed contact mechanism (8) is composed of a "C" shaped static contact rod (10), a static contact point (11), a "I" shaped dynamic contact rod (12) and a dynamic contact point (13), the static contact point (11) is riveted on the upper riveting part (14) of the "C" shaped static contact rod (10), the upper end of the terminal (4) is riveted on the lower riveting part (15) of the C shaped static contact rod (10); the "I" shaped dynamic contact rod (12) is arranged in the long slot (16) on one side of the push rod (6), the dynamic contact point (13) is riveted on both ends of the "I" shaped dynamic contact rod (12), and the upper end of the "I" shaped dynamic contact rod (12) is provided with a second reset spring (17).

2. The high current metal button switch of claim 1, wherein: The base (1) is provided with a "U" shaped lock rod (18) in the middle, both sides of the push rod (6) are provided with a lock slot (19) matched with the "U" shaped lock rod (18), the base (1) is integrally formed with a first partition plate (20) beside the "U" shaped lock rod (18), and the "C" shaped static contact rod (10) leans on the first partition plate (20).

3. The high current metal button switch of claim 2, wherein: The bottom of the base (1) is provided with a lock rod mounting slot (21), and the lock rod mounting slot (21) is provided with a lock rod buckle (22).

4. The high current metal button switch of claim 3, wherein: The lock rod mounting slot (21) is provided with a second partition plate (23), and the second partition plate (23) extends downward and is isolated from the terminal (4).

5. The high current metal button switch of claim 4, wherein: The two sides of the second partition plate (23) are provided with elastic buckles (24) connected to the base (1).

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