A rocking plate switch structure

Abstract

A swing piece switch structure belongs to the technical field of electric switch, the base contains cavity is divided for installing first fixed contact piece first installation cavity, for installing swing piece second installation cavity, for installing second fixed contact piece third installation cavity and for installing support fourth installation cavity, first installation cavity is close to second installation cavity one side of side wall is equipped with first pass through groove, second installation cavity both ends are equipped with end seat, both end seat opposite side is equipped with clamping groove, third installation cavity is close to second installation cavity one side of side wall is equipped with second pass through groove, fourth installation cavity is close to second installation cavity one side of side wall is equipped with third pass through groove, first pass through groove, clamping groove, second pass through groove, third pass through groove side wall one end is perpendicular to the bottom surface of containing cavity, far from the bottom surface of containing cavity one end is inclined plane, first pass through groove, clamping groove, second pass through groove, third pass through groove inclined plane end is tapered groove. The inclined plane of tapered groove can play a guiding role when installing parts, improve the convenience of assembly, avoid deformation caused by jam when installing parts.

Description

Technical Field

[0001] This utility model belongs to the field of electrical switch technology, specifically a swing plate switch structure. Background Technology

[0002] A rocker switch is an electromechanical component that uses mechanical oscillation to open and close a circuit. An external force drives the rocker to contact or separate from fixed contacts, thereby controlling the current path. Its core components include two fixed contacts, a rocker, and a support. The fixed contacts and support are all fixed to a base through terminals. One end of the rocker contacts the support, while the other end oscillates on the support under external force. This requires the fixed contacts and support to be stably limited and fixed by the base. Therefore, the base usually has multiple shaped limiters, and the length of the limiter fit makes assembly difficult. A spring connects the rocker and the rocker to facilitate the rocker's oscillation. Improper limiting of the spring by the rocker can cause the spring to tilt or dislodge under pressure, affecting the switch's operation.

[0003] Existing oscillating contacts are usually made of a copper rivet, with two fixed contacts at each end of the rivet. To prevent arcing, a silver layer is coated on the surfaces of the two ends where the rivet contacts the fixed contacts. When the rivet is riveted to the oscillating contact in the middle, external force causes plastic deformation at both ends of the rivet, which affects the quality of the coated silver layer and may even cause cracks in the silver layer, thus affecting the quality of the switch. Summary of the Invention

[0004] The purpose of this invention is to provide a swing plate switch structure to solve the problems of difficult assembly, low product quality, and short service life of existing switches.

[0005] This utility model provides a swing-plate switch structure, including a base. The base has a receiving cavity in the middle, which is divided into a first mounting cavity for installing a first fixed contact, a second mounting cavity for installing a swing plate, a third mounting cavity for installing a second fixed contact, and a fourth mounting cavity for installing a bracket. The side wall of the first mounting cavity near the second mounting cavity has a first through groove. The second mounting cavity has end seats at both ends, and each end seat has a slot on its opposite side. The side wall of the third mounting cavity near the second mounting cavity has a second through groove, and the side wall of the fourth mounting cavity near the second mounting cavity has a third through groove. One end of the side wall of the first through groove, the slot, the second through groove, and the third through groove is perpendicular to the bottom surface of the receiving cavity, and the end away from the bottom surface of the receiving cavity is an inclined surface. The inclined end of the first through groove, the slot, the second through groove, and the third through groove is a tapered groove.

[0006] A further embodiment: one end of the first fixing contact is installed in the first mounting cavity, and the other end passes through the first through groove and is located outside the first mounting cavity. A first fixing contact point is provided on the side of the first fixing contact point away from the outer wall of the first mounting cavity. One end of the second fixing contact is installed in the third mounting cavity, and the other end passes through the second through groove and is located outside the third mounting cavity. A second fixing contact point is provided on the side of the second fixing contact point away from the outer wall of the third mounting cavity. The central axis of the first fixing contact point is parallel to the central axis of the second fixing contact point.

[0007] A further embodiment: one end of the bracket is installed in the fourth mounting cavity, and the other end extends into the second mounting cavity and contacts the end of the swing plate near the bottom surface of the receiving cavity. The end of the swing plate away from the bracket is provided with a first swing plate contact corresponding to the first fixed contact and a second swing plate contact corresponding to the second fixed contact.

[0008] A further solution: the first pendulum contact and the second pendulum contact are located on both sides of the pendulum, and the central axes of the first pendulum contact and the second pendulum contact are parallel.

[0009] A further embodiment: the contact surface between the bracket and the swing plate is provided with several grooves, and the contact end face between the swing plate and the bracket is an arc surface.

[0010] A further embodiment: The swing plate is also provided with a support pin, the support pin is fitted with a spring, and the receiving cavity is also covered with a rocker mounting seat, on which a rocker is movably mounted, and the other end of the spring abuts against the rocker.

[0011] A further embodiment: the length of the insert pin into the spring is greater than the sum of twice the spring pitch and twice the diameter of the spring wire.

[0012] A further embodiment: The seesaw is provided with a cover plate on the side away from the spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The first through groove, the slot, the second through groove, and the third through groove are all divided into two sections. One end near the bottom of the receiving cavity is a straight groove, which is used to limit the installation of the first fixed contact piece, the swing piece, the second fixed contact piece, and the bracket, respectively. The other end is a tapered groove. The inclined surface of the tapered groove can guide the parts during installation, improve the convenience of assembly, and prevent the parts from deforming due to jamming during installation.

[0014] 2. Independent swing contact points are used and staggered. When riveting, the riveting point is away from the end of the silver layer to prevent deformation of the silver layer and ensure the conductivity of the swing contact points.

[0015] 3. The spring is limited by the pin and the limiting depth is guaranteed, so that the spring force is always pressed vertically downward, avoiding the spring from tilting or dislodging under pressure. Even if the spring end face is not ground flat, the balance of the swing plate during the movement can be guaranteed, which simplifies the spring processing technology.

[0016] 4. The contact surface between the support and the pendulum is provided with several grooves to increase the contact points between the support and the pendulum. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention (with the cover plate removed).

[0019] Figure 2 This is a schematic diagram showing the installation of some parts and the base in a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the base in a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the support, the swing plate, and the stationary contact plate in a preferred embodiment of the present invention.

[0022] In the diagram: 1-base; 11-first mounting cavity; 111-first through groove; 12-second mounting cavity; 121-end seat; 122-slot; 13-third mounting cavity; 131-second through groove; 14-fourth mounting cavity; 141-third through groove; 2-rocker mounting seat; 3-rocker; 4-bracket; 41-groove; 5-swing plate; 51-first swing plate contact; 52-second swing plate contact; 53-support pin; 6-first fixed contact plate; 61-first fixed contact; 7-second fixed contact plate; 71-second fixed contact. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] Please see Figures 1-3As shown, this utility model provides a rocker switch structure, including a base 1. The base 1 has a receiving cavity in the middle, which is divided into a first mounting cavity 11 for mounting a first fixed contact 6, a second mounting cavity 12 for mounting a rocker 5, a third mounting cavity 13 for mounting a second fixed contact 7, and a fourth mounting cavity 14 for mounting a bracket 4. The side wall of the first mounting cavity 11 near the second mounting cavity 12 has a first through groove 111. The second mounting cavity 12 has end seats 121 at both ends, and the two end seats 121 are opposite to each other. Each of the first and third mounting cavities has a slot 122 on one side. The side wall of the third mounting cavity 13 near the second mounting cavity 12 has a second through groove 131. The side wall of the fourth mounting cavity 14 near the second mounting cavity 12 has a third through groove 141. One end of the side wall of the first through groove 111, slot 122, second through groove 131, and third through groove 141 is perpendicular to the bottom surface of the receiving cavity, and the end away from the bottom surface of the receiving cavity is a slope. The slope end of the first through groove 111, slot 122, second through groove 131, and third through groove 141 is a tapered groove.

[0029] The first through groove 111, the slot 122, the second through groove 131, and the third through groove 141 are all divided into two sections. One end near the bottom surface of the receiving cavity is a straight groove, which is used to limit the installation of the first fixed contact 6, the swing piece 5, the second fixed contact 7, and the bracket 4, respectively. The other end is a tapered groove. The inclined surface of the tapered groove can guide the parts during installation, improve the convenience of assembly, and prevent the parts from deforming due to jamming during installation.

[0030] Please see Figures 2-4 As shown, one end of the first fixed contact 6 is installed in the first mounting cavity 11 via a terminal block, and the other end passes through the first through groove 111 and is located outside the first mounting cavity 11. A first fixed contact 61 is provided on the side of the first fixed contact 6 away from the outer wall of the first mounting cavity 11. One end of the first fixed contact 6 is fastened and limited by the terminal block, and the other end is locked and limited by the straight groove end of the first through groove 111. The depth of the straight groove end of the first through groove 111 is greater than the thickness of the mating first fixed contact 6, and the tapered groove end of the first through groove 111 provides installation guidance.

[0031] One end of the second fixed contact 7 is installed in the third mounting cavity 13 via a terminal block, and the other end passes through the second through groove 131 and is located outside the third mounting cavity 13. A second fixed contact 71 is provided on the side of the second fixed contact 7 away from the outer wall of the third mounting cavity 13. One end of the second fixed contact 7 is fastened and limited by the terminal block, and the other end is locked and limited by the straight groove end of the second through groove 131. The depth of the straight groove end of the second through groove 131 is greater than the thickness of the mating second fixed contact 7, and the tapered groove end of the second through groove 131 provides installation guidance.

[0032] The central axis of the first fixed contact 61 is parallel to the central axis of the second fixed contact 71. The swing plate 5 is inserted into the two slots 122 and is limited by the straight groove ends of the two slots 122. The tapered groove ends of the two slots 122 provide installation guidance and also provide swing space for the swing plate 5. One end of the bracket 4 is installed in the fourth mounting cavity 14 through a terminal block, and the other end passes through the third through groove 141 and the second mounting cavity 12, extending into the second mounting cavity 12 and contacting the end of the swing plate 5 near the bottom surface of the receiving cavity. The straight groove end of the third through groove 141 limits the mounting of the bracket 4, and the tapered groove end of the third through groove 141 provides installation guidance. The end of the swing plate 5 away from the bracket 4 is provided with a first swing plate contact 51 corresponding to the first fixed contact 61 and a second swing plate contact 52 corresponding to the second fixed contact 71.

[0033] For example, the terminal block is placed in the fourth mounting cavity 14 and screwed into the fourth mounting cavity 14 by an adjusting screw. One end of the bracket 4 extends into the terminal block, and the stripped end of the wire is also placed inside the terminal block. Rotating the adjusting screw can drive the terminal block to make linear movement, pressing the stripped end of the wire between the bracket 4 and the inner wall of the terminal block, thereby realizing the connection between the bracket 4 and the wire. The structure and wiring principle of the terminal block are existing technologies and will not be described in detail here. The first fixed contact 6 and the second fixed contact 7 are also connected to the wire through the terminal block, in the same way as the connection of the wire to the bracket 4.

[0034] The oscillating plate 5 is located between the first fixed contact plate 6 and the second fixed contact plate 7. The first oscillating plate contact 51 and the second oscillating plate contact 52 are located on both sides of the oscillating plate, and their central axes are parallel. When the oscillating plate 5 swings toward the first fixed contact plate 6, the first oscillating plate contact 51 contacts the first fixed contact plate 61, while the second oscillating plate contact 52 separates from the second fixed contact plate 72. When the oscillating plate 5 swings toward the second fixed contact plate 7, the second oscillating plate contact 52 contacts the second fixed contact plate 72, while the first oscillating plate contact 51 separates from the first fixed contact plate 61. Independent oscillating plate contacts are distributed on both sides of the oscillating plate 5 in a staggered arrangement. When riveting the oscillating plate contacts, the riveting point is far from the end coated with the silver layer to prevent deformation of the silver-coated end, ensuring the conductivity of the oscillating plate contacts, improving product quality, and extending the switch's service life.

[0035] In some embodiments, please refer to Figure 4 As shown, the contact surface between the support 4 and the swing plate 5 is provided with several grooves 41, and the contact end face between the swing plate 5 and the support 4 is an arc surface. The arc surface facilitates the swing plate 5 to swing under force on the support 4. The grooves 41 increase the contact points between the support 4 and the swing plate 5.

[0036] In some embodiments, please refer to Figure 4As shown, the swing plate 5 is also provided with a support pin 53, and a spring (not shown in the figure) is fitted around the support pin 53. The receiving cavity is also covered and installed with a rocker mounting seat 2. A rocker 3 is movably installed on the rocker mounting seat 2. The other end of the spring abuts against the rocker 3. A cover plate (not shown in the figure) is also provided on the side of the rocker 3 away from the spring. A button passing through the cover plate is connected to the rocker 3. The specific structure and installation method of the rocker 3, cover plate, button, and rocker mounting seat 2 are existing technologies and will not be described in detail. Under normal conditions, the spring is in a pre-compressed state, compressed between the swing plate 5 and the rocker 3. When the button is pressed, the rocker 3 swings, compressing the spring and causing the swing plate to swing, thereby realizing the contact or separation of the first swing plate contact 51 with the first fixed contact 61, and the contact or separation of the second swing plate contact 52 with the second fixed contact 71.

[0037] The length of the insert pin 53 into the spring is greater than the sum of twice the spring pitch and twice the diameter of the spring wire. The spring is limited by the insert pin 53 and the limiting depth is ensured so that the spring force is always pressed vertically downward, preventing the spring from tilting or dislodging under pressure. Even without grinding the end face of the spring, the balance of the swing plate 5 during the movement can be guaranteed, simplifying the spring manufacturing process.

[0038] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A pendulum switch structure, characterized in that, The device includes a base with a accommodating cavity in the middle. The accommodating cavity is divided into a first mounting cavity for mounting a first fixed contact piece, a second mounting cavity for mounting a swing piece, a third mounting cavity for mounting a second fixed contact piece, and a fourth mounting cavity for mounting a bracket. The side wall of the first mounting cavity near the second mounting cavity has a first through groove. The second mounting cavity has end seats at both ends, and each end seat has a slot on its opposite side. The side wall of the third mounting cavity near the second mounting cavity has a second through groove, and the side wall of the fourth mounting cavity near the second mounting cavity has a third through groove. One end of the side wall of the first through groove, the slot, the second through groove, and the third through groove is perpendicular to the bottom surface of the accommodating cavity, and the end away from the bottom surface of the accommodating cavity is an inclined surface. The inclined end of the first through groove, the slot, the second through groove, and the third through groove is a tapered groove.

2. The pendulum switch structure according to claim 1, characterized in that, One end of the first fixed contact is installed in the first mounting cavity, and the other end passes through the first through groove and is located outside the first mounting cavity. A first fixed contact point is provided on the side of the first fixed contact away from the outer wall of the first mounting cavity. One end of the second fixed contact is installed in the third mounting cavity, and the other end passes through the second through groove and is located outside the third mounting cavity. A second fixed contact point is provided on the side of the second fixed contact away from the outer wall of the third mounting cavity. The central axis of the first fixed contact point is parallel to the central axis of the second fixed contact point.

3. The pendulum switch structure according to claim 2, characterized in that, One end of the bracket is installed in the fourth mounting cavity, and the other end extends into the second mounting cavity and contacts the end of the swing plate near the bottom surface of the receiving cavity. The end of the swing plate away from the bracket is provided with a first swing plate contact corresponding to the first fixed contact and a second swing plate contact corresponding to the second fixed contact.

4. The pendulum switch structure according to claim 3, characterized in that, The first and second pendulum contacts are located on opposite sides of the pendulum, and their central axes are parallel.

5. The pendulum switch structure according to claim 3, characterized in that, The contact surface between the bracket and the swing plate is provided with several grooves, and the contact end face between the swing plate and the bracket is an arc surface.

6. The pendulum switch structure according to claim 1, characterized in that, The swing plate is also equipped with a support pin, and a spring is fitted around the support pin. The receiving cavity is also covered and installed with a rocker mounting seat. A rocker is movably installed on the rocker mounting seat, and the other end of the spring abuts against the rocker.

7. The pendulum switch structure according to claim 6, characterized in that, The length of the needle inserted into the spring is greater than twice the spring pitch and twice the diameter of the spring wire.

8. A pendulum switch structure according to claim 6 or 7, characterized in that, The seesaw is also provided with a cover plate on the side away from the spring.

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