Large-current button switch

Abstract

The high-current button switch comprises a shell, a pressing part, an insulating driving rod, NO and NC pins with NO and NC contacts, and a movable contact which moves up and down in the shell along with the pressing part, a movable contact piece is transversely arranged on the insulating driving rod, and two ends of the movable contact piece respectively extend out of the insulating driving rod. The movable contact is arranged on the upper side and the lower side of the two ends of the movable contact piece respectively, the NO contact and the NC contact are arranged in the upper side area and the lower side area of the movable contact relative to the upper side position and the lower side position of the two ends of the movable contact piece in the shell, and the NO contact and the NC contact distributed in the upper side area and the lower side area of the movable contact are arranged in a large-opening-distance mode. According to the button switch, the problem that the creepage distance between the support and the contacts is insufficient is solved, the movable contact, the NO contact and the NC contact are of an up-down structure, a traditional included angle structure is replaced, the large-opening-distance design is achieved, and the button switch can be suitable for being used in the large-current and surge environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to switch technical field especially relates to a big current button switch. BACKGROUND

[0002] Button switch is a kind of button push transmission mechanism, and the movable contact and the static contact are opened and closed and the circuit switching is realized. The existing 16A button switch generally can hardly reach 10A for its overcurrent function;At the same time, the existing 16A button switch is limited by power supply, which causes the designed 16A button switch to only support one open, in addition, the design of the existing 16A button switch is mainly to control high-power electrical appliances, and its rated current is 16A, which is suitable for household appliances such as refrigerator, washing machine etc., but the design range and capacity of the existing general 16A button switch are limited, so it cannot be used in the conduction in a very short time (such as tens of nanoseconds), and the voltage is limited in the safe range, that is, the existing general 16A button switch cannot realize fast response and conduction in a very short time, and cannot protect the equipment from sudden huge energy impact, that is, it cannot have the use function of surge protector. SUMMARY

[0003] In view of the above-mentioned deficiencies, the utility model provides a big current button switch that can realize fast response and conduction in a very short time.

[0004] In order to realize the above purpose, the utility model adopts a kind of big current button switch, including shell, press part that is limited on shell and is pressed towards the press action in shell, NO, NC pin that is limited in shell and has NO, NC contact point, movable contact that is driven in shell and moves with press part, the big current button switch further includes insulating drive rod, the movable contact piece is transversely arranged on the insulating drive rod, the movable contact piece is respectively extended on the insulating drive rod at both ends, and the movable contact is respectively arranged on the upper side and the lower side of both ends of the movable contact piece, the NO, NC contact point is arranged on the upper side and the lower side of the movable contact in the shell, and the NO, NC contact point distributed on the upper side and the lower side of the movable contact is arranged in large opening distance mode.

[0005] The utility model is further provided with a track groove on one side of the insulating drive rod, a limiting assembly is limited on the shell relative to the side with the track groove, one end of the limiting assembly is inserted into the track groove, the track groove includes switch continuous conduction limiting area and switch open-circuit limiting area, and the circuit of the big current button switch is continuously conducted or switched off by the limiting assembly being clamped or switched in the switch continuous conduction limiting area and the switch open-circuit limiting area.

[0006] The utility model further sets up, this big current button switch still includes elastic member, the inside hole is opened in the insulating drive rod, the transverse through groove that is opened in the rod wall of insulating drive rod is passed through insulating drive rod, the transverse through groove is linked together with the inside hole, and the moving contact piece is transversely placed in the insulating drive rod through the transverse through groove, one end of the elastic member is abutted in the hole bottom position of the inside hole, and the other end is abutted on the moving contact piece, and the insulating drive rod is pressed down through the pressing portion, and the contact between the moving contact and NO contact point is formed, and the insulating drive rod is pressed down again through the pressing portion, and the big opening distance reset action of the elastic member is made, and the contact between the moving contact and NC contact point is formed.

[0007] The utility model further sets up, and the trajectory groove includes switch persistent conduction trajectory half groove and switch open limit trajectory half groove, the switch persistent conduction limit area is distributed in the top side area of switch persistent conduction trajectory half groove, and the switch open limit area is distributed in the top side area of switch open limit trajectory half groove, and the switch persistent conduction trajectory half groove and switch open limit trajectory half groove are communicated and set up.

[0008] The utility model further sets up, and the one side of insulating drive rod is opened with irregular recess, and the irregular recess is protruded with the boss in, the trajectory path that the trajectory groove is formed between irregular recess and boss, and the limit component includes the limiting piece that is limited on the casing and pull rod, one end of the pull rod is limited on the limiting piece, and the other end extends into the trajectory path, and the downside of the boss is formed with the first guide portion that pull rod extends to the side of switch persistent conduction trajectory half groove, and the upside of the boss is formed with the second guide portion that is used to form the pull rod and is introduced into switch open limit trajectory half groove.

[0009] The utility model further sets up, and switch persistent conduction trajectory half groove and switch open limit trajectory half groove are spliced, and form the trajectory groove of peach heart shape, and the boss is the peach heart shape boss.

[0010] The utility model discloses beneficial effect lies in: through respectively contact between the drive NO, NC contact and the movable contact in 16A button switch, realize the traditional metal support that circuit opens and closes is used, adopt insulating drive pole to replace, simultaneously when using the metal support of traditional, it is similar to NO contact, NC contact is distributed on one side in the casing respectively, and NO contact, NC contact is opposite and is distributed on the same straight line, and the metal support is distributed on the other side in the casing, and movable contact is limited on the metal support, and the one end of movable contact is inserted between NO contact, NC contact, and forms movable contact, movable contact that is limited on the metal support, through the effect of elastic member similar to spring, make swing between NO contact, NC contact can be realized, thereby realizing the contact of NO contact or NC contact, but the switching contact between the contact of present through the included angle, swing amplitude is often limited, thereby causing unable to realize the large open distance design between the contact, and the space in the button switch of traditional is limited, cause the creepage distance between the contact and the metal support under the use of surge environment, basically above-mentioned defect, the utility model discloses the included angle type setting between the contact, adopt the upper and lower structure setting style to replace, thereby movable contact and NO contact, NC contact between, can realize the design of large open distance, and through the insulating drive pole, solve the creepage distance between NO contact and NC contact, thereby make the button switch of the utility model, can adapt to the use under the environment of large current, and can be applicable to energy storage, direct current and surge environment, also make it can be realized in very short time, and can realize the environment of fast response and conduction of large current. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the three-dimensional schematic diagram of the large current button switch of the utility model specific embodiment;

[0012] Figure 2 It is the first visual angle internal structure schematic diagram of the large current button switch of the utility model specific embodiment;

[0013] Figure 3 It is Figure 2 the enlarged schematic diagram;

[0014] Figure 4 It is the second visual angle internal structure schematic diagram of the large current button switch of the utility model specific embodiment;

[0015] Figure 5 It is Figure 4 the enlarged schematic diagram;

[0016] Figure 6 It is the third visual angle internal structure schematic diagram of the large current button switch of the utility model specific embodiment;

[0017] Figure 7 is Figure 6 an enlarged schematic view. DETAILED DESCRIPTION

[0018] As Figures 1-7 shown, the utility model embodiment is a kind of high current button switch, including shell 2, press part 1 on shell 2 and towards shell 2 inside press action, NO, NC pin with NO, NC contact in shell 2 limit and have, dynamic contact 9 is driven in shell 2 with press part 1 and moves, the high current button switch also includes insulating drive rod 6, and dynamic contact piece 7 is transversely arranged on insulating drive rod 6, and the two ends of dynamic contact piece 7 respectively extend on insulating drive rod 6, dynamic contact 9 is respectively arranged on the upper and lower sides of the two ends of dynamic contact piece 7, and NO, NC contact is on the upper and lower side area of dynamic contact 9 relative to the position of dynamic contact 9 on the upper and lower side of the two ends of dynamic contact piece 7, and NO, NC contact distributed in the upper and lower side area of dynamic contact 9 is set in large opening distance mode.

[0019] By respectively contacting between the drive NO, NC contact and dynamic contact 9 in 1A button switch, realize the traditional metal support used for circuit opening and closing, replace with insulating drive rod 6, at the same time, when using traditional metal support, similar to NO contact 3, NC contact 8 is distributed on one side in shell 2, and NO contact 3, NC contact 8 is opposite and distributed on the same straight line, and metal support is distributed on the other side in shell 2, and dynamic contact is limited on metal support, and one end of dynamic contact is inserted between NO contact 3, NC contact 8, and forms dynamic contact 9, dynamic contact limited on metal support, by the action of elastic member similar to spring, it can swing between NO contact 3, NC contact 8, to realize the contact of NO contact 3 or NC contact 8, but the switching contact between the contact of the existing angle type often causes the limited swing amplitude, so that the large opening distance design between the contacts cannot be realized, at the same time, due to the limited space in button switch, the creepage distance between contact and metal support will not be enough when used in surge environment, to overcome the above defects, the utility model replaces the angle type setting between traditional contact with upper and lower structure setting style, so that dynamic contact 9 and NO contact 3, NC contact 8 can realize large opening distance design, and the problem of creepage distance between NO contact 3 and NC contact 8 is solved by using insulating drive rod 6, so that the button switch involved in the utility model can be used in high current environment, and can be used in energy storage, direct current and surge environment, and can be used in high current environment with fast response and conduction in a very short time.

[0020] As Figures 2-7As shown, one side of the insulating driving rod 6 is provided with a track groove 5, the housing 2 is limited by a limiting assembly 4 relative to the side provided with the track groove 5, one end of the limiting assembly 4 extends into the track groove 5, the track groove 5 includes a switch continuous conduction limiting area 511 and a switch open limiting area 521, through the clamping or switching of the limiting assembly 4 in the switch continuous conduction limiting area 511 and the switch open limiting area 521, the circuit continuous conduction or off switching design of the large current button switch is formed; the button switch related to the utility model can slide on the track groove 5 of the insulating driving rod 6 through the limiting assembly 4, and through the clamping and switching of the limiting assembly 4 in the switch continuous conduction limiting area 511 or the switch open limiting area 521, so that the button switch can realize reliable self-locking (for continuous conduction of the circuit) and off of the circuit in the use process, thereby the various different circuit control requirements can be met, and the circuit requiring more complex control can be used.

[0021] As shown in the figure, Figures 2-7 The large current button switch further includes a resilient member, the insulating driving rod 6 is provided with an inner hole, a transverse through groove penetrating the insulating driving rod 6 is formed on the rod wall of the insulating driving rod 6, the transverse through groove is communicated with the inner hole, the movable contact 7 is transversely arranged in the insulating driving rod 6 through the transverse through groove, one end of the resilient member abuts against the bottom of the inner hole, and the other end abuts against the movable contact 7, the contact between the movable contact 9 and the NO contact 3 is formed by pressing the insulating driving rod 6 downward through the pressing part 1, the contact between the movable contact 9 and the NC contact 8 is formed by again pressing the insulating driving rod 6 downward through the pressing part 1 and the large opening distance reset action of the resilient member; the insulating driving rod 6 can be reliably used, that is, the insulating driving rod 6 can be reliably reset through the action of the resilient member after the downward action of the pressing end, and the movable contact 7 related to the movable contact 9 can be reliably installed and limited in the insulating driving rod 6, thereby ensuring the reliability of the design of the utility model.

[0022] As shown in the figure, Figure 5 、 7 The track groove 5 includes a switch continuous conduction track half groove 51 and a switch open limiting track half groove 52, the switch continuous conduction limiting area 511 is distributed in the top side area of the switch continuous conduction track half groove 51, the switch open limiting area 521 is distributed in the top side area of the switch open limiting track half groove 52, and the switch continuous conduction track half groove 51 and the switch open limiting track half groove 52 are arranged in a communicating mode; in the self-locking process of the switch, the corresponding switch continuous conduction track half groove 51 or switch open limiting track half groove 52 can be reliably moved, the reliable continuous conduction and off of the circuit are realized, and the reliability of the design in the self-locking process and the off process of the switch is ensured.

[0023] As Figures 2-7 shown, the side of the insulation driving rod 6 is provided with irregular recess a, the irregular recess a is provided with protrusion b, the track groove 5 is the track path formed between the irregular recess a and the protrusion b, the limiting assembly 4 includes the limiting piece 42 limited on the shell 2, and the pull rod 41, one end of the pull rod 41 is limited on the limiting piece 42, the other end extends into the track path, the lower side of the protrusion b is formed with the first guide part b2 into which the pull rod 41 extends relative to the side of the switch continuous conduction track half groove 51, the upper side of the protrusion b is formed with the second guide part b1 for forming the pull rod 41 into the switch open limit track half groove 52; the switch continuous conduction track half groove 51 and the switch open limit track half groove 52 are spliced, and form the track groove 5 in the shape of a peach heart, the protrusion b is designed to be a peach heart-shaped protrusion b; the track groove 5 for the self-locking of the button switch can be reliably designed on the insulation driving rod 6, at the same time, the pull rod 41 part can also reliably slide in the switch continuous conduction track half groove 51 and the switch open limit track half groove 52, at the same time, before the circuit continuous conduction, the pull rod 41 can reliably slide into the switch continuous conduction track half groove 51 through the action of the first guide part b2, before the circuit needs to be turned off, the pull rod 41 can reliably slide into the switch open limit track half groove 52 through the action of the second guide part b1, so that the utility model can further realize the reliability of the self-locking and the switch open design of the switch.

Claims

1. A large current button switch comprising a housing, a pressing part limited on the housing and making pressing action towards the inside of the housing, NO, NC pins with NO, NC contacts limited in the housing, a moving contact driven in the housing with the pressing part and making moving action, characterized in that: The high current button switch further comprises an insulating driving rod, a movable contact is horizontally arranged on the insulating driving rod, and the movable contact is arranged on the upper and lower sides of the two ends of the movable contact, respectively.

2. The high current push button switch of claim 1, wherein: The insulating driving rod is provided with a track groove on one side, and a limiting component is arranged on the shell relative to the side provided with the track groove, one end of the limiting component extends into the track groove, the track groove comprises a switch continuous conduction limiting area and a switch open limiting area, and the limiting component is clamped or switched in the switch continuous conduction limiting area and the switch open limiting area, so that the circuit of the high current button switch is continuously conducted or switched off.

3. The high current push button switch of claim 1, wherein: The high current button switch further comprises a resilient member, an inner hole is arranged in the insulating driving rod, a transverse through groove penetrating through the insulating driving rod is arranged on the rod wall of the insulating driving rod, the transverse through groove is communicated with the inner hole, the movable contact is horizontally arranged in the insulating driving rod through the transverse through groove, one end of the resilient member abuts against the bottom of the inner hole, and the other end abuts against the movable contact, the insulating driving rod is pressed down by the pressing part, the contact between the movable contact and the NO contact is formed, the insulating driving rod is pressed down again by the pressing part, and the resilient member is reset by large-opening compression, so that the contact between the movable contact and the NC contact is formed.

4. The high current button switch of claim 2, wherein: The track groove comprises a switch continuous conduction track half-groove and a switch open limiting track half-groove, the switch continuous conduction limiting area is distributed on the top side area of the switch continuous conduction track half-groove, the switch open limiting area is distributed on the top side area of the switch open limiting track half-groove, and the switch continuous conduction track half-groove and the switch open limiting track half-groove are arranged in communication.

5. The high current push button switch of claim 4, wherein: The insulating driving rod is provided with an irregular recess on one side, a protrusion is protruded in the irregular recess, the track groove is formed between the irregular recess and the protrusion, the limiting component comprises a limiting member and a pull rod, one end of the pull rod is limited on the limiting member, and the other end extends into the track path, a first guide part is formed on the lower side of the protrusion relative to the side of the switch continuous conduction track half-groove, and a second guide part is formed on the upper side of the protrusion for guiding the pull rod into the switch open limiting track half-groove.

6. The high current push button switch of claim 5, wherein: The switch continuous conduction track half-groove and the switch open limiting track half-groove are spliced to form a peach-shaped track groove, and the protrusion is a peach-shaped protrusion.

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