CN221466483U - Swing sheet type contact structure of switch and switch with same - Google Patents

Abstract

The utility model discloses a swinging plate type contact structure of a switch, which comprises a switch swinging plate, an output end conducting plate and an input end conducting plate, wherein the input end conducting plate is provided with a supporting plate part, a static contact is arranged on the output end conducting plate, the front end of the switch swinging plate is provided with a movable contact, a swinging supporting point groove is formed on the supporting plate part, the rear end of the switch swinging plate is in contact connection with the swinging supporting point groove, the switch swinging plate can swing by external force to enable the movable contact to be contacted with or separated from the static contact, and the swinging plate type contact structure has better reliability. The utility model also discloses a switch, which comprises the swing sheet type contact structure, so that the reliability of the switch is better.

Description

Swing sheet type contact structure of switch and switch with same

Technical Field

The utility model relates to the field of a swinging plate type contact structure of a switch and a wall switch, in particular to a swinging plate type contact structure of a switch and a switch with the swinging plate type contact structure.

Background

At present, a wall switch is provided with a switch key and a switch switching mechanism, the switch key is pushed by a human hand to drive the switch switching mechanism to act so as to realize switch switching, the switch switching mechanism comprises a contact structure, the contact structure in the prior art mainly comprises a seesaw type and a swinging sheet type, the seesaw type is that a swinging fulcrum is positioned in the middle of the seesaw, and contacts (silver points) are arranged at two ends of the seesaw; the swinging support is located at one end of the swinging piece, and the other end of the swinging piece opposite to the swinging support is provided with a contact, for example, the swinging piece can refer to a wall switch with the publication number of CN217426615U, the rear end of the swinging piece is pressed against the conducting piece at the input end through the elastic force of a spring, so that in order to enable the movable contact at the front end of the swinging piece to have enough swinging amplitude, the movable amplitude of the rear end of the swinging piece needs to be limited, the swinging piece swings approximately around the rear end of the swinging piece, a clamping groove is formed on the base of the wall switch, the rear end of the swinging piece is arranged in the clamping groove, the clamping groove limits the movable range of the rear end of the swinging piece, in other words, in the daily use process, the swinging piece is contacted with the inner wall of the clamping groove, when a large current passes between the rear end of the swinging piece and the conducting piece at the input end, the rear end of the swinging piece can generate heat obviously, the structure of the clamping groove is possibly deformed due to heating, even a melting phenomenon occurs, the rear end of the swinging piece loses effective limit, the movable contact at the front end of the swinging piece is influenced by the movable amplitude of the swinging piece, the clamping groove, the switching phenomenon or the switching phenomenon is caused, or the switching phenomenon of the movable contact at the front end of the swinging piece is bad, and the prior art has the necessary improvement phenomenon.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and firstly provides a swinging plate type contact structure of a switch, which has better reliability.

The aim of the utility model is achieved by the following technical scheme.

The utility model discloses a swinging plate type contact structure of a switch, which comprises a switch swinging plate, an output end conducting plate and an input end conducting plate, wherein the input end conducting plate is provided with a supporting plate part, a static contact is arranged on the output end conducting plate, and a movable contact is arranged at the front end of the switch swinging plate, wherein a swinging supporting point groove is formed on the supporting plate part, the rear end of the switch swinging plate is in contact connection with the swinging supporting point groove, and the switch swinging plate can swing by external force to enable the movable contact to be contacted with or separated from the static contact.

Preferably, the cross section of the swing fulcrum groove is in an arc shape.

Preferably, the rear end of the switch swing piece is provided as a round end for contacting the inner wall of the swing fulcrum groove.

Preferably, the swing fulcrum groove penetrates through the supporting piece portion, and the width of the rear end of the switch swing piece is larger than the length of the swing fulcrum groove.

Preferably, the swing sheet type contact structure of the switch of the utility model further comprises a base, the output end conducting sheet and the input end conducting sheet are arranged in the base, an anti-drop groove is formed in the base, and the left end and the right end of the switch swing sheet are respectively arranged in the corresponding anti-drop groove.

Preferably, the supporting piece part is respectively provided with a limit strip at two sides of the swing fulcrum groove; the switch swing piece is characterized by further comprising limit baffles, wherein the limit baffles are respectively arranged on the left side and the right side of the rear end of the switch swing piece.

Preferably, the limit strips are distributed at corresponding positions at two ends of the swing fulcrum groove.

The utility model also provides a switch comprising the wobble plate type contact structure.

Compared with the prior art, the utility model has the beneficial effects that: the swing fulcrum groove is formed on the supporting piece part of the input end conducting piece, the rear end of the switch swing piece is in contact connection with the swing fulcrum groove, and the switch swing piece can swing by external force to enable the movable contact to be in contact with or separated from the fixed contact, so that the influence of heating of the switch swing piece on the swing piece type contact structure is small, and the reliability of the swing piece type contact structure is better. And (II) the switch of the utility model has better reliability because the switch of the utility model comprises the swinging plate type contact structure of the utility model.

Drawings

Fig. 1 is a schematic view showing a sectional structure of a switch according to a first embodiment of the present utility model in a right-hand direction.

Fig. 2 is a schematic diagram of a partial structure at a in fig. 1.

Fig. 3 is a schematic perspective view of the front view of the switch of the present utility model with the switch button and the conductive member cover removed.

Fig. 4 is a schematic view of a partial structure at B of fig. 3.

Fig. 5 is a schematic perspective view of a switch swing piece according to the present utility model.

Fig. 6 is a schematic perspective view of an input conductive sheet according to the present utility model.

Fig. 7 is a schematic perspective view of a base of the present utility model.

Fig. 8 is an exploded view of the switch of the present utility model.

Fig. 9 is a schematic perspective view of a switch according to the present utility model.

Fig. 10 is a schematic structural diagram of a second embodiment of the present utility model corresponding to fig. 4.

Fig. 11 is a schematic perspective view of an input conductive sheet according to a second embodiment of the present utility model.

Description of the reference numerals: a base 1; a drop prevention groove 101; a limit baffle 102; a conductive member cover 2; a driving member 3; fork 301; a switch key 4; a switch swing piece 5; round end 5011; a spring positioning tab 502; a movable contact 51; an output terminal conductive sheet 6; a stationary contact 61; a compression spring 7; an input terminal conductive sheet 8; a support piece 81; a swing fulcrum groove 801; a limit bar 802.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The swing sheet type contact structure of the switch of the utility model, as shown in fig. 1 to 4, comprises a switch swing sheet 5, an output end conducting sheet 6 and an input end conducting sheet 8, wherein the switch swing sheet 5, the output end conducting sheet 6 and the input end conducting sheet 8 can be made of copper, as shown in fig. 6, the input end conducting sheet 8 is provided with a supporting sheet part 81, as shown in fig. 3 and 4, the output end conducting sheet 6 is provided with a fixed contact 61, as shown in fig. 4 and 5, and the front end of the switch swing sheet 5 is provided with a movable contact 51. As shown in fig. 6, a swing supporting point groove 801 is formed on the supporting piece 81, and as shown in fig. 2 and 4, the rear end of the switch swing piece 5 is in contact connection with the swing supporting point groove 801, and the switch swing piece 5 can swing by external force to enable the movable contact 51 to contact or separate from the fixed contact 61, specifically, the front part of the switch swing piece 5 swings around the rear end of the switch swing piece 5, and in the embodiment illustrated in fig. 1, the front part of the switch swing piece 5 swings up and down; for example, as shown in fig. 3 and fig. 4, when the switch is a double-control switch, the upper and lower sides of the switch swinging piece 5 are respectively provided with a fixed contact 61, the fixed contacts 61 are respectively arranged on the corresponding output end conducting pieces 6, so that when the front part of the switch swinging piece 5 swings up and down, the movable contact 51 can be switched to contact the fixed contacts 61 respectively positioned on the upper and lower sides of the movable contact 51; for example, when the switch is a single-control switch, only one side of the movable contact 51 is provided with the stationary contact 61. As shown in fig. 1 to 4, the switch comprises a driving piece 3, a fork 301 is formed at the rear end of the driving piece 3, a compression spring 7 is arranged in the driving piece 3, the driving piece 3 swings up and down around the front end of the driving piece 3, a spring positioning protruding block 502 is formed at the front part of the switch swinging piece 5, the rear end of the compression spring 7 is sleeved on the spring positioning protruding block 502, and as shown in fig. 2, the fork 301 is clamped at the position of the spring positioning protruding block 502, so that when the rear end of the driving piece 3 swings up and down, the fork 301 can toggle the front part of the switch swinging piece 5, the switch swinging piece 5 can realize a switch switching function, during the period, the elastic restoring force of the compression spring 7 pushes the switch swinging piece 5 backwards, the rear end of the switch swinging piece 5 can keep abutting against the inner wall of the swinging fulcrum groove 801, and the lateral component force generated by the compression spring 7 on the switch swinging piece 5 can keep good contact between the movable contact 51 and the fixed contact 61.

As shown in fig. 2 and 4, since the rear end of the switch swing piece 5 is connected to the swing fulcrum groove 801, the swing fulcrum groove 801 limits the movement range of the rear end of the switch swing piece 5, and prevents the rear end of the switch swing piece 5 from sliding up and down and separating from the swing fulcrum groove 801, and the swing fulcrum groove 801 is substantially used as the swing fulcrum of the switch swing piece 5, so that the front part of the switch swing piece 5 can swing up and down stably, and a limit structure made of plastic and used for limiting the rear end of the switch swing piece 5 is avoided, so that when a large current passes between the switch swing piece 5 and the support piece part 81, even if the heat generation amount of the switch swing piece 5 and the support piece part 81 is large, the switch failure is not caused, that is, the influence of the heat generation of the switch swing piece is less on the swing piece contact structure of the switch of the utility model, so that the stability and reliability of the swing piece contact structure of the switch of the utility model are better. The supporting piece part 81 of the utility model directly supports the switch swinging piece 5, which is beneficial to good conductive contact between the switch swinging piece 5 and the swinging fulcrum groove 801, while the prior art is provided with a limiting structure made of plastic to assist in supporting the switch swinging piece, which can cause the contact between the switch swinging piece and the input end conductive piece to be not tight enough.

Further, as shown in fig. 2 and 6, the cross section of the swing fulcrum groove 801 is in a circular arc shape, the swing fulcrum groove 801 is linearly extended in the left-right direction, and since the cross section of the swing fulcrum groove 801 is in a circular arc shape, the swing fulcrum groove 801 plays a role in guiding the movement of the rear end of the switch swing piece 5, so that the rear end of the switch swing piece 5 receives less resistance when moving in the swing fulcrum groove 801, which is beneficial to the swing flexibility of the switch swing piece 5.

Further, as shown in fig. 2 and 5, the rear end of the switch swing piece 5 is set to be a round end 5011 for contacting the inner wall of the swing fulcrum groove 801, that is, the section of the rear end of the switch swing piece 5 is arc-shaped, as shown in fig. 2, so that the rear end of the switch swing piece 5 and the swing fulcrum groove 801 have a guiding function, further avoiding the clamping stagnation condition when the rear end of the switch swing piece 5 moves in the swing fulcrum groove 801, and being beneficial to flexibly and stably switching the switch; and because the swing fulcrum groove 801 is an inner arc, the round end 5011 is an outer arc, and thus when the round end 5011 and the swing fulcrum groove 801 generate microscopic elastic deformation under pressure, surface contact is easier to form, the contact area between the switch swing piece 5 and the input end conducting piece 8 is increased, and the conductivity is improved.

Further, as shown in fig. 6, the swing fulcrum groove 801 penetrates the supporting piece portion 81, and as shown in fig. 4, the width of the rear end of the switch swing piece 5 (i.e., the dimension "W1" shown in fig. 5) is larger than the length of the swing fulcrum groove 801 (i.e., the dimension "W2" shown in fig. 6), so that the corners of the left and right ends of the rear end of the switch swing piece 5 are prevented from scraping in the swing fulcrum groove 801 to form a step, and even if the inner wall of the swing fulcrum groove 801 is worn after long-term use, the entire swing fulcrum groove 801 is uniformly worn, contact failure is avoided, and durability of the switch is facilitated.

Further, the swing piece type contact structure of the utility model further comprises a base 1, as shown in fig. 3, an output end conducting piece 6 and an input end conducting piece 8 are arranged in the base 1, the base 1 is an injection molding piece, as shown in fig. 7, an anti-drop groove 101 is formed in the base 1, as shown in fig. 4, the left end and the right end of the switch swing piece 5 are respectively arranged in the corresponding anti-drop groove 101, and under normal use condition, the switch swing piece 5 is not contacted with the inner wall of the anti-drop groove 101, in other words, the anti-drop groove 101 is not involved in limiting the normal activity amplitude of the rear end of the switch swing piece 5; under unexpected circumstances, in the switching process of the switch, the switch swing piece 5 may generate a bouncing condition to separate from the swing fulcrum groove 801, at this time, the anti-drop groove 101 will play a role in blocking the switch swing piece 5, limit the dislocation amplitude of the switch swing piece 5 in a recoverable range, and also avoid the switch swing piece 5 from separating from the fork 301, when the user switches the switch again, the switch swing piece 5 swings back, and when the rear end of the switch swing piece 5 slides over the swing fulcrum groove 801, the switch will drop into the swing fulcrum groove 801, thereby enabling the switch to recover normal functions.

In some embodiments, as shown in fig. 10 and 11, the supporting piece 81 is formed with a limit bar 802 on two sides (upper and lower sides as viewed in fig. 11) of the swing supporting point groove 801, in other words, the limit bar 802 and the supporting piece 81 are integrally arranged, and as shown in fig. 10, the rear end of the switch swing piece 5 is in contact connection with the swing supporting point groove 801 in a normal working state, so that the rear end of the switch swing piece 5 is located between the corresponding upper and lower limit bars 802; under unexpected circumstances, in the switching process of the switch, the switch swing piece 5 may generate a bouncing condition to separate from the swing fulcrum groove 801, at this time, the limiting strip 802 may play a role in blocking the switch swing piece 5, limiting the dislocating amplitude of the switch swing piece 5 in a recoverable range, when the user switches the switch again, so that the switch swing piece 5 swings back, and when the rear end of the switch swing piece 5 slides across the swing fulcrum groove 801, the switch will fall into the swing fulcrum groove 801, thereby enabling the switch to recover normal functions. More specifically, as shown in fig. 11, the limit bars 802 are distributed at the corresponding positions of the two ends of the swing fulcrum groove 801, that is, as shown in fig. 10, so that the left and right ends of the switch swing piece 5 are both limited by the limit bars 802, and the switch swing piece 5 is more reliably limited. As shown in fig. 10, the swing-type contact structure of the present embodiment further includes limit baffles 102, where the limit baffles 102 are respectively disposed on the left and right sides of the rear end of the switch swing piece 5, specifically, the limit baffles 102 are formed on the base 1, so that the limit baffles 102 limit the left and right movement range of the switch swing piece 5, and prevent the switch swing piece 5 from being separated from the working position.

The switch of the utility model comprises the swing piece type contact structure of the switch, as shown in fig. 1, 8 and 9, the switch of the utility model further comprises a conductive piece cover 2 and a switch key 4, wherein the conductive piece cover 2 is arranged at the front side of the base 1, so that the conductive piece cover 2 covers the switch swing piece 5, the output end conductive piece 6 and the input end conductive piece 8, the switch is favorable for electricity safety, the front end of the driving piece 3 is hinged with the conductive piece cover 2, the switch key 4 is arranged at the front side of the conductive piece cover 2, for example, the middle part of the switch key 4 in the upper and lower directions is hinged with the base 1, the upper part of the switch key 4 and the lower part of the switch key 4 are respectively hooked with the driving piece 3, and the driving piece 3 can be driven to swing by manually stirring the switch key 4. The switch of the utility model is provided with the swinging plate type contact structure of the switch, so that the switch of the utility model has better reliability.

Claims (8)

1. The utility model provides a swing sheet type contact structure of switch, includes switch swing sheet (5), output conducting strip (6) and input conducting strip (8), input conducting strip (8) are formed with supporting plate portion (81), be equipped with stationary contact (61) on output conducting strip (6), the front end of switch swing sheet (5) is equipped with movable contact (51), its characterized in that: a swing supporting point groove (801) is formed on the supporting plate part (81), the rear end of the switch swinging plate (5) is in contact connection with the inside of the swing supporting point groove (801), and the switch swinging plate (5) can swing by external force to enable the movable contact (51) to be in contact with or separated from the fixed contact (61).

2. The rocker contact structure of claim 1 wherein: the section of the swing fulcrum groove (801) is in an arc shape.

3. The rocker contact structure of claim 2 wherein: the rear end of the switch swing piece (5) is provided with a round end (5011) for contacting the inner wall of the swing fulcrum groove (801).

4. A wobble plate type contact structure of a switch as claimed in claim 3, wherein: the swing supporting point groove (801) penetrates through the supporting sheet part (81), and the width of the rear end of the switch swinging sheet (5) is larger than the length of the swing supporting point groove (801).

5. The rocker contact structure of claim 4 wherein: still include base (1), output conducting strip (6) with input conducting strip (8) are located in base (1), be formed with anticreep groove (101) in base (1), the left and right sides both ends of switch pendulum piece (5) are located respectively in corresponding anticreep groove (101).

6. The rocker contact structure of claim 1 wherein: the supporting piece part (81) is respectively provided with a limit strip (802) at two sides of the swing supporting point groove (801); the switch swing piece is characterized by further comprising limit baffles (102), wherein the limit baffles (102) are respectively arranged on the left side and the right side of the rear end of the switch swing piece (5).

7. The rocker contact structure of claim 6 wherein: the limit strips (802) are distributed at the corresponding positions at the two ends of the swing fulcrum groove (801).

8. A switch, characterized in that: wobble plate type contact structure comprising the switch of any one of claims 1 to 7.