Moving contact components and contact switches

Abstract

The present disclosure relates to a moving contact assembly and a contact switch, and belongs to the field of switch technology. The moving contact assembly includes a moving contact, a swing arm, and a metal block with magnetism; the swing arm has a mounting slot, and one side of the mounting slot is open, wherein the slot of the mounting slot is located at the end of the swing arm, and the opening of the mounting slot is located at the side of the swing arm; a part of the moving contact is located in the mounting slot, and the other part passes through the slot of the mounting slot and extends out of the swing arm; the metal block is fixed on the part of the moving contact extending out of the swing arm, and the metal block is used to adsorb with the magnetic block of the contact switch. The present disclosure can reduce the difficulty of processing the swing arm, and make the swing arm easy to process and shape.

Description

Technical Field

[0001] The present disclosure relates to the technical field of switches, and in particular to a movable contact assembly and a contact switch. Background Art

[0002] A contact switch is a switch that is turned on by the moving contact touching the static contact. It is often used in push-type switches, such as wall switches.

[0003] The moving contact assembly of the contact switch usually includes a moving contact, a moving contact plate and a swing arm in structure. A part of the moving contact plate is located in the swing arm, and the other part extends out of the swing arm. The moving contact is fixed to the part of the moving contact plate extending out of the swing arm.

[0004] How to reduce the difficulty of processing the swing arm and make it easier to process and shape the swing arm is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to solve the problems of the prior art, the present disclosure provides a movable contact assembly and a contact switch. The technical solution is as follows:

[0006] In a first aspect, a moving contact assembly is provided, the moving contact assembly comprising a moving contact piece, a swing arm and a magnetic metal block;

[0007] The swing arm has a mounting groove, and one side of the mounting groove is open, wherein the groove of the mounting groove is located at the end of the swing arm away from the swing point, and the opening of the mounting groove is located at the side of the swing arm;

[0008] A portion of the movable contact is located in the mounting groove, and another portion thereof passes through a notch of the mounting groove and extends out of the swing arm;

[0009] The metal block is fixed on the portion of the movable contact extending from the swing arm, and the metal block is used to be adsorbed to the magnetic block of the contact switch where it is located.

[0010] In a possible implementation manner, the metal block has an extension arm, and the extension arm is fixed in the installation groove.

[0011] In a possible implementation, the mounting slot has a first limiting structure, the extension arm has a second limiting structure, and the extension arm is fixed in the mounting slot through cooperation between the first limiting structure and the second limiting structure.

[0012] In a possible implementation, the first limiting structure is a groove with one side open, wherein the groove of the first limiting structure faces the inner space of the installation groove, and the opening of the first limiting structure and the opening of the installation groove are located on the same side of the swing arm;

[0013] The second limiting structure is a bending portion, and the extension arm is clamped in the first limiting structure through the second limiting structure and is fixed in the installation slot.

[0014] In a possible implementation, the swing arm has a cylindrical groove, the cylindrical groove is located at the bottom of the mounting groove and is connected to the mounting groove, and the notch of the cylindrical groove and the opening of the mounting groove are located on the same side of the swing arm;

[0015] The movable contact member includes a rolled portion, and the rolled portion is interference fit in the cylindrical groove.

[0016] In one possible implementation, the dynamic contact member includes a dynamic touch plate and a spring sheet, wherein a portion of the spring sheet near its first end is rolled up to form the rolled-up portion, and a portion near its second end extends out of the mounting groove and is fixed to the dynamic touch plate, wherein the first end and the second end of the spring sheet are two ends that are opposite to each other along the length direction of the spring sheet.

[0017] In a possible implementation, the metal block has a U-shaped groove, and a groove wall of the U-shaped groove has a third limiting structure;

[0018] The movable touch plate has a fourth limiting structure, the U-shaped groove is clamped on the movable touch plate and the portion of the elastic sheet extending out of the mounting groove, and the third limiting structure cooperates with the fourth limiting structure.

[0019] In a possible implementation manner, the movable contact member further includes a movable contact point, and the movable contact plate and the elastic sheet are riveted via the movable contact point.

[0020] In a possible implementation, the first end of the movable touch plate is located at the notch of the mounting slot, the second end extends out of the mounting slot, and the sum of the thicknesses of the movable touch plate and the spring sheet is smaller than the slot width of the mounting slot at the notch and along the thickness direction of the movable touch plate.

[0021] In a possible implementation, the spring sheet has a convex bump, and the convex bump is interference fit in the installation groove.

[0022] In a possible implementation, the metal block has a U-shaped groove, and the U-shaped groove is clamped on a portion of the movable contact extending out of the mounting groove.

[0023] In a possible implementation, the notch of the installation groove and the notch of the U-shaped groove are arranged front to back along the length direction of the movable contact, and the notch of the U-shaped groove does not extend into the notch of the installation groove.

[0024] In a possible implementation, the groove bottom and the groove wall of the U-shaped groove are connected via an arc-shaped recessed portion, wherein the arc-shaped recessed portion is recessed in a direction away from the groove space inside the U-shaped groove.

[0025] In a possible implementation, the swing arm includes a swing rod, side ribs and connecting ribs;

[0026] The first end of the swing rod has a rotating structure for swinging, the mounting groove is arranged on the swing rod, and the notch of the mounting groove is located at the second end of the swing rod;

[0027] The side rib is connected to one side of the rocker arm, and is close to the first end. One end of the connecting rib is connected to the side rib, and the other end is connected to the rocker arm. The connection between the connecting rib and the rocker arm is closer to the second end of the rocker arm than the first end of the rocker arm, wherein the first end and the second end of the rocker arm are two ends that are opposite to each other along the length direction of the rocker arm.

[0028] In a second aspect, a contact switch is provided, wherein the contact switch comprises the movable contact assembly described in the first aspect.

[0029] In the scheme disclosed in the present invention, the movable contact assembly can make the width of the installation groove larger by allowing a part of the metal block to extend into the installation groove of the swing arm, thereby making the swing arm easier to process and shape. The movable contact assembly can also make the inner diameter of the cylindrical groove of the swing arm larger by allowing the rolled-up portion of the movable contact to be installed in the swing arm, thereby making the swing arm easier to process and shape. Therefore, whether a part of the metal block is extended into the swing arm or the rolled-up portion of the movable contact is installed in the swing arm, the width of the groove opened by the swing arm can be increased, thereby making the swing arm easier to process and shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 is a structural schematic diagram of a dynamic touch component provided by an embodiment of the present disclosure;

[0032] Figure 2 is a structural schematic diagram of a swing arm provided by an embodiment of the present disclosure;

[0033] Figure 3 is a schematic structural diagram of a metal block provided by an embodiment of the present disclosure;

[0034] Figure 4 is a cross-sectional schematic diagram of a dynamic touch assembly provided by an embodiment of the present disclosure;

[0035] Figure 5 It is a schematic diagram of the principle of a swing arm without connecting ribs being subjected to force and swinging provided by an embodiment of the present disclosure;

[0036] Figure 6 It is a schematic diagram of the principle of a swing arm including a connecting rib swinging under force provided by an embodiment of the present disclosure;

[0037] Figure 7 is a structural schematic diagram of a dynamic touch component provided by an embodiment of the present disclosure;

[0038] Figure 8 is a schematic structural diagram of a spring provided by an embodiment of the present disclosure;

[0039] Fig. 9 is a structural schematic diagram of a swing arm provided by an embodiment of the present disclosure;

[0040] Fig.10 is a cross-sectional schematic diagram of a dynamic touch assembly provided by an embodiment of the present disclosure;

[0041] Fig.11 is a schematic structural diagram of a metal block provided by an embodiment of the present disclosure;

[0042] Fig.12 is a schematic diagram of assembling a moving touch panel to a metal block provided by an embodiment of the present disclosure;

[0043] Fig.13 is a schematic diagram of a spring sheet provided by an embodiment of the present disclosure being assembled to a metal block;

[0044] Fig.14 It is a schematic diagram of the structure of a movable touch plate, a movable contact point, a spring and a metal block after being assembled according to an embodiment of the present disclosure.

[0045] Description of Reference Numerals

[0046] 1. Moving contact; 11. Moving contact plate; 12. Moving contact point; 13. Shrapnel.

[0047] 111. fourth limiting structure; 131. rolling portion; 132. convex hull.

[0048] 2. Swing arm; 21. Swing rod; 22. Side ribs; 23. Connecting ribs.

[0049] 211. Installation groove; 2111. First limiting structure; 2112. Limiting rib; 212. Cylindrical groove.

[0050] 3. Metal block; 31. U-shaped groove; 32. Extension arm.

[0051] 311. The third limiting structure; 312. The arc-shaped recessed portion; 321. The second limiting structure. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0053] The present embodiment relates to a contact switch, which includes a moving contact and a stationary contact, and is a switch that is connected by the moving contact touching the stationary contact and is disconnected by the moving contact and the stationary contact separating.

[0054] The contact switch can be used in a push switch, such as a wall push switch, where the panel of the push switch is pressed to cause the moving contact to touch and separate from the static contact. The contact switch can also be used in a socket, such as a wall socket, where the moving contact to touch and the static contact to touch by inserting a plug into the socket, and the moving contact to separate from the static contact by pulling the plug out of the socket. The present embodiment does not limit the application scenario of the contact switch.

[0055] The moving contact assembly of the contact switch usually includes a moving contact, a moving contact plate and a swing arm in structure. The swing arm has a slot, a part of the moving contact plate is inserted into and fixed in the slot, and the other part extends out of the swing arm, and the moving contact is fixed to the part of the moving contact plate extending out of the swing arm.

[0056] However, since the thickness of the movable touch panel is generally thin and it is difficult to make it thick, the slot opened on the swing arm is in the shape of a long and narrow slit, which further makes it difficult to process and shape the swing arm.

[0057] To this end, the embodiment of the present disclosure provides a moving touch assembly, the groove of the swing arm of the moving touch assembly can be opened relatively wide, reducing the difficulty of processing the swing arm. The moving touch assembly is easy to assemble, which can improve the assembly efficiency of the moving touch assembly. The assembly method of the moving touch assembly is simple, which can reduce the difficulty of processing the moving touch plate, the swing arm and the metal block.

[0058] like Figure 1 The figure shows a schematic diagram of the structure of a dynamic touch component. Figure 1 As shown, the moving contact assembly includes a moving contact 1 and a swing arm 2, a part of the moving contact 1 is located in the swing arm 2, and the other part extends out of the swing arm 2 for contacting with the stationary contact.

[0059] In order to assemble the moving contact 1 into the swing arm 2, accordingly, Figure 2As shown, the swing arm 2 has a mounting groove 211 distributed in the length direction, and one side of the mounting groove 211 is open, wherein the groove opening of the mounting groove 211 is located at the end of the swing arm 2 (the end is the end away from the rotation center of the swing arm 2, and the rotation center of the swing arm 2 is also the swing point of the swing arm 2), and the opening of the mounting groove 211 is located at the side of the swing arm 2, which is the side connected to the end, such as the side perpendicular to the rotation axis of the swing arm 2 or at a certain angle.

[0060] In this way, the movable contact 1 can be pushed into the mounting groove 211 through the opening of the mounting groove 211. Because the groove depth of the mounting groove 211 is smaller than the length of the movable contact 1, a part of the movable contact 1 passes through the groove opening of the mounting groove 211 and extends out of the mounting groove 211, thereby extending out of the swing arm 2.

[0061] In one example, the swing arm 2 is generally rotatably installed in a contact switch, for example, the contact switch is used in a push switch, when the user presses the panel of the push switch, the panel drives the swing arm 2 to rotate. For another example, the contact switch is used in a wall socket, when the user inserts the plug into the socket of the wall socket, the swing arm 2 is caused to rotate.

[0062] When the swing arm 2 is swinging, it drives the moving contact 1 to swing, so that the moving contact touches and separates from the static contact. For example, when the swing arm 2 rotates clockwise and swings forward, the moving contact touches the static contact and the contact switch is closed. When the swing arm 2 rotates counterclockwise and swings backward, the moving contact separates from the static contact and the contact switch is opened.

[0063] Continue to refer Figure 1 As shown, the moving contact assembly also includes a metal block 3, which is magnetic, such as an iron block, and is used to adsorb with the magnetic block in the contact switch. The metal block 3 is fixed on the part of the moving contact 1 extending out of the swing arm 2, and the first part of the metal block 3 is located on the first side of the moving contact 1, and the second part of the metal block 3 is located on the second side of the moving contact 1, wherein the first side and the second side of the moving contact 1 are relative to each other, for example, the first side of the moving contact 1 can be a side used to contact with the static contact, and the second side is opposite to the first side.

[0064] In application, the moving contact assembly is assembled in the contact switch, the first part of the metal block 3 is used to be adsorbed with the first magnetic block, and the second part of the metal block 3 is used to be adsorbed with the second magnetic block. When the swing arm swings forward until the moving contact and the stationary contact touch each other, the first part of the metal block 3 is adsorbed with the first magnetic block, and when the swing arm swings backward until the moving contact and the stationary contact are separated, the second part of the metal block 3 is adsorbed with the second magnetic block.

[0065] In one example, the first part and the second part of the metal block 3 may be two independent parts. For example, the first part of the metal block 3 is fixed solely on the first side of the moving contact 1 , and the second part of the metal block 3 is fixed solely on the second side of the moving contact 1 .

[0066] In another example, the first part and the second part of the metal block 3 are integrally formed, for example Figure 3 As shown, the metal block 3 has a U-shaped groove 31, and the U-shaped groove 31 divides the metal block 3 into a first part and a second part. In this case, the metal block 3 is clamped on the part of the movable contact 1 extending out of the mounting groove 211 of the swing arm 2.

[0067] In this embodiment, how the metal block 3 forms the first part and the second part is not specifically limited. For the convenience of description, Figure 3 As shown, the U-shaped groove 31 of the metal block 3 divides the metal block 3 into a first part and a second part.

[0068] The above is a brief introduction to the moving contact assembly. The moving contact assembly in this embodiment mainly makes the swing arm easy to process and shape in the following manner, thereby improving the assembly efficiency of the contact switch.

[0069] One way is to refer to Figure 1 As shown, a portion of the metal block 3 is inserted into the mounting groove 211 of the swing arm 2 .

[0070] Because the portion of the metal block 3 extending into the mounting groove 211 can be made relatively thick and is not limited by its function, Figure 1 The mounting groove 211 of the swing arm 2 shown can be made relatively wide, so that the swing arm 2 is easy to be processed and formed.

[0071] Moreover, if Figure 1 The moving touch assembly shown is a moving touch panel 11 and a metal block 3 that are assembled together into the mounting groove 211 of the swing arm 2. It is not that the metal block 3 is fixed to the moving touch panel 11 first and then the moving touch panel 11 is fixed to the swing arm 2. This simplifies the assembly process on the one hand and reduces the size requirements of the moving touch panel 11, the swing arm 2 and the metal block 3 on the other.

[0072] Another way is to refer to Figure 7 As shown, the moving contact 1 has a rolling portion 131, and the rolling portion 131 can be rolled into a relatively large cylindrical structure. The rolling portion 131 is inserted into the swing arm 2, so that the size of the cylindrical groove 212 of the swing arm 2 that accommodates the rolling portion 131 is relatively large, which also makes the swing arm 2 easy to process and shape, thereby improving the assembly efficiency of the contact switch.

[0073] The following will introduce Figure 1 He Ru Figure 7 Features of the two types of moving touch components shown.

[0074] (one) Figure 1 The structural features of the moving touch component shown are introduced.

[0075] like Figure 1 As shown, the moving contact 1 includes a moving contact plate 11 and a moving contact point 12, wherein the moving contact point 12 is fixed to the portion of the moving contact plate 11 extending out of the swing arm 2, for example, the moving contact point 12 is riveted to the moving contact plate 11, and the moving contact surface of the moving contact point 12 is located on one side of the moving contact plate 11.

[0076] In another example, the movable touch panel 11 and the movable contact point 12 may be integrated together, and the movable contact point 12 is located on the portion of the movable touch panel 11 extending from the swing arm 2 and is located on the surface of the movable touch panel 11 .

[0077] In this embodiment, whether the movable touch plate 11 and the movable contact point 12 are two independent structures or integrated together is not specifically limited. For ease of description, the movable touch plate 11 and the movable contact point 12 are two independent structures as an example.

[0078] In one example, the contact surface of the moving contact 12 is generally plated with silver, so the moving contact 12 is also called a silver point. The material of the moving touch plate 11 is generally copper, so the moving touch plate 11 is also called a copper sheet. The material of the swing arm 2 is generally plastic, so it is also called a plastic part.

[0079] refer to Figure 3 As shown, the metal block 3 includes not only a U-shaped groove 31 for clamping the movable touch plate 11, but also an extension arm 32, wherein the extension arm 32 extends from the notch of the U-shaped groove 31 in a direction away from the groove bottom. In this way, not only a part of the movable touch plate 11 is installed in the installation groove 211, but also the extension arm 32 of the metal block 3 is installed in the installation groove 211.

[0080] In one example, in order to fix the extension arm 32 and the movable touch plate 11 in the mounting groove 211, accordingly, refer to Figure 2 As shown, the extension arm 32 has a second limiting structure 321, and the second limiting structure 321 may be a bent portion bent toward a side facing away from the U-shaped groove 31. It can also be understood that the extension arm 32 of the metal block 3 is L-shaped.

[0081] like Figure 2 And refer to Figure 1 As shown, the first slot wall of the mounting slot 211 has a first limiting structure 2111, wherein the first slot wall is an open slot wall of the mounting slot 211 adjacent to the mounting slot 211, wherein the first limiting structure 2111 can be a card slot with an open side, the slot opening of the first limiting structure 2111 faces the slot space inside the mounting slot 211, and the opening of the first limiting structure 2111 and the opening of the mounting slot 211 are located on the same side of the swing arm 2.

[0082] Continue to refer Figure 1 As shown, a portion of the movable touch panel 11 and the extension arm 32 of the metal block 3 can be positioned in the mounting groove 211 with interference fit, and the second limiting structure 321 of the extension arm 32 is stuck in the first limiting structure 2111 .

[0083] refer to Figure 4 As shown, since the movable touch plate 11 and the extension arm 32 of the metal block 3 are both located in the mounting groove 211 , the width of the mounting groove 211 can be made relatively wide.

[0084] Since the second limiting structure 321 of the metal block 3 is stuck in the first limiting structure 2111 and the thickness of the second limiting structure 321 can be made relatively large, the groove width of the first limiting structure 2111 can also be made relatively large.

[0085] Therefore, the groove width of the installation groove 211 and the groove width of the first limiting structure 2111 can be made relatively large, so that the swing arm 2 is easy to process and shape.

[0086] Moreover, reference Figure 1 As shown, since the movable touch plate 11 and the metal block 3 are interference fitted into the mounting groove 211 of the swing arm 2, this assembly method only needs to meet the interference requirement of the sum of the thickness of the movable touch plate 11 and the thickness of the extension arm 41 and the groove width of the mounting groove 211 during processing, and the thickness of the second limiting structure 321 of the extension arm 32 and the groove width of the first limiting structure 2111 meet the interference requirement, which reduces the thickness requirement of the movable touch plate 11 and the groove width requirement of the U-shaped groove 31 of the metal block 3.

[0087] It should be noted that the first limiting structure 2111 and the second limiting structure 321 may also be arranged in reverse, for example, the first limiting structure 2111 is a protruding structure, and the second limiting structure 321 is a groove structure or an opening structure.

[0088] In one example, since the movable touch plate 11 and the extension arm 32 of the metal block 3 are both stuck in the mounting groove 211 of the swing arm 2, the end of the movable touch plate 11 extending into the mounting groove 211 can extend to the bottom of the mounting groove 211. Figure 4 As shown, the first end of the movable touch panel 11 extends into the bottom of the mounting groove 211, and the second end of the movable touch panel 11 passes through the notch of the mounting groove 211 and extends out of the mounting groove 211, wherein the first end of the movable touch panel 11 may or may not contact the bottom of the mounting groove 211. The more the movable touch panel 11 and the extension arm 32 extend into the swing arm 2, the more firmly the swing arm 2, the movable touch panel 11 and the metal block 3 are fixed to each other.

[0089] In one example, in order to make the movable touch panel 11 and the extension arm 32 interference fit in the installation groove 211, accordingly, as shown in FIG. Figure 2 As shown, the groove wall of the mounting groove 211 in contact with the movable touch plate 11 and / or the groove wall of the mounting groove 211 in contact with the extension arm 32 may have a limiting rib 2112 protruding toward the space in the groove to clamp the movable touch plate 11 and the extension arm 32 in the mounting groove 211.

[0090] For example, Figure 2 And refer to Figure 1 As shown, the lower groove wall of the mounting groove 211 in contact with the movable touch plate 11 has a plurality of limiting ribs 2112, and the plurality of limiting ribs 2112 are sequentially arranged along the strip direction of the mounting groove 211. For another example, the upper groove wall of the mounting groove 211 in contact with the extension arm 32 has a plurality of limiting ribs 2112, and the plurality of limiting ribs 2112 are sequentially arranged along the strip direction of the mounting groove 211.

[0091] In order to push the movable touch plate 11 and the extension arm 32 into the installation groove 211, as shown in FIG. Figure 2 And refer to Figure 1 As shown, the opening of the installation slot 211 has a guide structure, and the limiting rib 2112 also has a guide structure, so as to facilitate pushing the movable touch plate 11 and the extension arm 32 into the installation slot 211 .

[0092] The guide structure of the opening makes the opening flared. The guide structure of the limiting rib 2112 is a tangent plane or an arc surface located at the end.

[0093] Continue to refer Figure 1 As shown, since a portion of the moving contact plate 11 and the extension arm 32 of the metal block 3 are extended into the mounting groove 211 of the swing arm 2, the notch of the mounting groove 211 can be used as a forced separation structure, which is used to force the moving contact to be pulled away from the static contact at the end of the mounting groove 211 at the notch when the moving contact is adhered to the static contact.

[0094] refer to Figure 1 As shown in FIG. 1 , the notch of the mounting groove 211 and the notch of the U-shaped groove 31 of the metal block 3 are arranged front and back along the length direction of the movable touch plate 11. Compared with the prior art, in which the notch of the mounting groove 211 is trumpet-shaped and the notch of the U-shaped groove 31 of the metal block 3 extends into the notch of the mounting groove 211, as shown in FIG. Figure 1 The solution shown can reduce the width of the moving contact assembly in a direction perpendicular to the width of the moving contact plate 11. This moving contact assembly is assembled in a contact switch without interfering with the assembly of other components.

[0095] In one example, as described above, the U-shaped groove 31 of the metal block 3 is clamped on the movable touch plate 11, so during assembly, one end of the movable touch plate 11 extends into the U-shaped groove 31 and extends into the groove bottom of the U-shaped groove 31. When the swing arm 2 drives the movable touch plate 11 to swing, the movable touch plate 11 will exert a force on the metal block 3, and the stress at the right-angle edge where the groove bottom and the groove wall of the U-shaped groove 31 are connected is relatively concentrated, and cracks are prone to occur after long-term use.

[0096] For this reason, Figure 3 As shown, the bottom and the groove wall of the U-shaped groove 31 are connected by an arc-shaped recessed portion 312, and the arc-shaped recessed portion 312 is recessed in the direction away from the groove space of the U-shaped groove 31. Moreover, the connection between the arc-shaped recessed portion 312 and the groove wall of the U-shaped groove 31 is a smooth transition connection, and the connection between the arc-shaped recessed portion 312 and the bottom of the U-shaped groove 31 is also a smooth transition connection.

[0097] In this way, Figure 4 As shown, after the moving touch plate 11 extends into the bottom of the U-shaped groove 31, there is a gap between the moving touch plate 11 and the arc-shaped recessed portion 312. Then, the right-angled edge of the moving touch plate 11 will not exert force on the metal block 3, and there will be no force concentration at the connection between the groove wall and the groove bottom of the U-shaped groove 31, so that the U-shaped groove 31 is not prone to cracking.

[0098] Regarding the structural features of the swing arm 2, continue to refer to Figure 2 As shown, the swing arm 2 includes a swing rod 21 and side ribs 22. The swing rod 21 is in the shape of an elongated strip, and a first end thereof has a rotating structure (such as a rotating shaft or a rotating shaft hole) as a swing point. The side ribs 22 are connected to one side of the swing rod 21 and are close to the position of the swing point. The above-mentioned mounting groove 211 is opened on the swing rod 21.

[0099] refer to Figure 2 As shown, when the side ribs 22 are subjected to thrust, the swing rod 21 can be urged to swing around the swing point.

[0100] In one example, in order to make the swing rod 21 swing under a relatively small force, accordingly, Figure 2 As shown, there is a connecting rib 23 between the rocker arm 21 and the side rib 22, one end of the connecting rib 23 is connected to the side rib 22, and the other end is connected to the rocker arm 21, and is connected to a position of the rocker arm 21 as close to the second end (the end away from the swing point) as possible.

[0101] refer to Figure 5 and Figure 6 Schematic diagram, Figure 5 It is a principle diagram without connecting ribs 23 between the swing rod 21 and the side ribs 22. When the force pushes the side ribs 22, A is the position of the force application point, and A' is the equivalent force application point on the swing rod 21. Figure 6It is a principle diagram of a connecting rib 23 between the swing rod 21 and the side rib 22. When the force pushes the side rib 22, B is the force application point and B' is the equivalent force application point on the swing rod 21. Figure 5 and Figure 6 As shown, it is obvious that A' is closer to the swing point O, and B' is farther from the swing point O. When a force is applied farther from the swing point, according to the lever principle, a smaller force can be used to make the pendulum 21 swing, so it is easier to make the pendulum 21 swing.

[0102] Therefore, when a force is applied to the lateral rib 22, due to the existence of the connecting rib 23, the point of application of the force can be moved to the second end of the rocker arm 21, and the swing point is at the first end of the rocker arm 21. Therefore, the distance between the swing point and the force application point is increased, making it easier for the rocker arm 21 to swing, and then a smaller force can be used to drive the rocker arm 33 to swing.

[0103] The above is as Figure 1 The structural features of the moving touch component shown are introduced.

[0104] (two) Figure 7 The structural features of the moving touch component shown are introduced.

[0105] like Figure 7 The movable contact component 1 of the movable contact assembly shown still includes the movable contact plate 11 and the movable contact point 12. The movable contact plate 11 and the movable contact point 12 can be fixed together or integrated together. Please refer to the above description for details, which will not be repeated here.

[0106] like Figure 7 As shown, the movable contact member 1 includes a rolling portion 131. In an example, the rolling portion 131 may be formed on the movable contact plate 11. For example, a portion of the movable contact plate 11 close to the first end is in a rolled-up state to form the rolling portion.

[0107] In another example, Figure 7 As shown, the dynamic contact assembly includes a spring 13, wherein the spring 13 is specifically a relatively thin metal sheet. Figure 8 The structure diagram of the spring piece 13 is shown in FIG. Figure 8 As shown, the portion of the spring sheet 13 close to the first end is rolled up to form a rolled portion 131. The rolled up portion 131 may be rolled up one circle, multiple circles, or more than half a circle.

[0108] That is, the rolling portion of the moving contact member 1 can be formed on the moving touch plate 11, and can also be formed on the spring sheet 13 fixed to the moving touch plate 11. The present embodiment does not limit on which component the rolling portion is formed. Since the thickness of the spring sheet 13 is thinner than that of the moving touch plate 11 and is easier to roll up, the rolling portion 131 is formed on the spring sheet as an example.

[0109] Regardless of which member the rolling portion 131 is formed on, in order to allow the rolling portion 131 to be assembled into the swing arm 2, accordingly, Fig. 9 The structure diagram of the swing arm 2 is shown in FIG. Fig. 9 As shown, the swing arm 2 includes not only a mounting groove 211, but also a cylindrical groove 212, wherein the cylindrical groove 212 is located at the bottom of the mounting groove 211 and is connected to the mounting groove 211, and the groove opening of the cylindrical groove 212 and the opening of the mounting groove 211 are located on the same side of the swing arm 2.

[0110] So, if Fig.10 And refer to Figure 7 As shown, a portion of the spring sheet 13 close to the second end is fixed to the surface of the moving touch plate 11, and another portion close to the first end extends into the mounting groove 211 and the cylindrical groove 212, and the rolled portion 131 of the spring sheet 13 is interference fit in the cylindrical groove 212, wherein the first end and the second end of the spring sheet 13 are two ends opposite to each other along the length direction of the spring sheet 13.

[0111] refer to Figure 7 As shown, since the first end of the movable touch plate 11 will extend into the mounting groove 211, the groove width of the mounting groove 211 will not be made very narrow, and the spring 13 has a rolled-up portion 131, so the diameter of the cylindrical groove 212 will be made relatively large. Therefore, it is relatively easy to open the mounting groove 211 and the cylindrical groove 212 on the swing arm 2, and the swing arm 2 is easy to process and shape.

[0112] In one example, continue to refer to Figure 8 As shown, the spring piece 13 has a convex bump 132, wherein the top surface of the convex bump 132 is a plane, and the side surface of the convex bump 132 is a spherical surface. After the spring piece 13 is assembled in the swing arm 2, the convex bump 132 is located in the mounting groove 211 of the swing arm 2. Since the convex bump 132 has a certain height, Fig.10 As shown, the width of the mounting groove 211 is also relatively large, further making it easier to process and shape the swing arm 2.

[0113] In one example, the function of the spring 13 is to store force through elastic deformation when the moving contact and the static contact are separated, so that the moving contact and the static contact are separated quickly. Then, in order to enable the spring 13 to deform, correspondingly, Fig.10As shown, the first end of the movable touch panel 11 away from the movable contact point 12 is located at the slot opening of the mounting slot 211, the second end of the movable touch panel 11 extends out of the mounting slot 211, and the sum of the thickness of the movable touch panel 11 and the spring 13 is less than the slot width of the mounting slot 211 at the slot opening. In this way, there is a gap between the spring 13 and the slot wall of the adjacent mounting slot 211, and / or there is a gap between the movable touch panel 11 and the slot wall of the adjacent mounting slot 211, and the gap is a space reserved for the deformation of the spring 13, wherein the first end and the second end of the movable touch panel 11 are two opposite ends in the length direction of the movable touch panel 11.

[0114] For example, there is a gap between the spring sheet 13 and the adjacent groove wall. To form the gap, the groove wall of the mounting groove 211 facing the spring sheet 13 may have a limiting rib 2112. There may also be a gap between the movable touch panel 11 and the adjacent groove wall. To form the gap, the groove wall of the mounting groove 211 facing the movable touch panel 11 may have a limiting rib 2112.

[0115] As described above, the convex bump 132 of the spring piece 13 is located in the installation groove 211 with interference fit, so the opening of the installation groove 211 can have a guide structure, and the limiting rib 2112 abutting against the convex bump 132 can also have a guide structure. In this way, under the action of the guiding structure of the installation groove 211 and the guiding structure of the limiting rib 2112, the convex bump of the spring piece 13 is easier to be inserted into the installation groove 211.

[0116] Similarly, in order to facilitate the interference fit of the rolled portion of the spring sheet 13 into the cylindrical groove 212, accordingly, as shown in FIG. Fig. 9 As shown, the notch of the cylindrical groove 212 also has a guiding structure.

[0117] In one example, the fixed connection between the spring piece 13 and the moving touch plate 11 can be achieved by riveting at the moving contact 12, and the spring piece 13 is located in the mounting groove 211 and the cylindrical groove 212 of the swing arm 2 by interference fit. Then, the spring piece 13 and the moving touch plate 11 can be located in the U-shaped groove 31 of the metal block 3 without interference fit.

[0118] So, if Fig.10 As shown, the movable touch panel 11 has a fourth limiting structure 111, wherein the fourth limiting structure 111 may be an opening that penetrates the thickness of the movable touch panel 11, or may be a groove that does not penetrate the thickness of the movable touch panel 11. Fig.11 And refer to Fig.10 As shown, the groove wall of the U-shaped groove 31 facing the movable touch plate 11 has a third limiting structure 311, so that when the U-shaped groove 31 is clamped on the movable touch plate 11 and the part of the spring 13 extending out of the mounting groove 211, the third limiting structure 311 and the fourth limiting structure 111 cooperate with each other, wherein the third limiting structure 311 can be a protrusion protruding into the space inside the U-shaped groove 31.

[0119] It should be noted that the third limiting structure 311 and the fourth limiting structure 111 can also be reversed, for example, the third limiting structure 311 is a groove structure, and the fourth limiting structure 111 is a convex structure. This embodiment does not limit this, and for ease of introduction, the third limiting structure 311 is a convex structure, and the fourth limiting structure 111 is an open structure.

[0120] The assembly process of the moving touch plate 11, the spring 13 and the metal block 3 can refer to Figure 12 to Figure 14 As shown in FIG. 1 , first, the movable touch plate 11 is inserted into the U-shaped groove 31 of the metal block 3. After being inserted to the bottom, the fourth limiting structure 111 of the movable touch plate 11 is opposite to the third limiting structure 311 of the U-shaped groove 31. Then, the movable touch plate 11 is moved toward the groove wall with the third limiting structure 311 close to the U-shaped groove 31. After being moved to the bottom, as shown in FIG. Fig.13 As shown, the fourth limiting structure 111 of the movable touch plate 11 is engaged with the third limiting structure 311 of the U-shaped groove 31. At this time, there is a gap between the groove wall of the U-shaped groove 31 without the third limiting structure 311 and the movable touch plate 11, and the gap is slightly larger than the thickness of the spring 13. Fig.13 And refer to Fig.14 As shown, after the spring piece 13 is inserted into the U-shaped groove 31 and inserted to the bottom, that is, after being inserted into place, the U-shaped groove 31 of the metal block 3 has been clamped on the movable contact plate 11 and the spring piece 13, but it is not an interference clamp at this time. Therefore, the movable contact plate 11 and the spring piece 13 are fixed at the position of the movable contact point 12 by riveting, for example, the movable contact plate 11 and the spring piece 13 are fixed by riveting the movable contact point 12.

[0121] Because the movable touch plate 11 is clamped with the metal block 3, although the spring sheet 13 is not clamped with the metal block 3, the spring sheet 13 and the movable touch plate 11 are riveted together by the movable contact 12, so the spring sheet 13 will not be pulled out from the U-shaped groove 31 of the metal block 3. In this way, the movable contact 12, the movable touch plate 11, the spring sheet 13 and the metal block 3 are assembled together, and there is almost no interference assembly in the whole assembly process. The assembly process is simple and fast, does not involve interference, and does not need to forcibly squeeze or push the movable touch plate 11 and the spring sheet 13 into the U-shaped groove 31 of the metal block 3.

[0122] After the movable touch plate 11, the movable contact 12, the spring 13 and the metal block 3 are assembled, the rolled portion 131 of the spring 13 is interference fit in the swing arm 2. Since the rolled portion 131 has good shrinkage elasticity, the rolled portion 131 can be easily interference fit into the cylindrical groove 212 of the swing arm 2 with the cooperation of the guide structure.

[0123] In one example, as described in (a) above, reference Fig.11As shown, the bottom and the groove wall of the U-shaped groove 31 of the metal block 3 are also connected by an arc-shaped recessed portion 312, and the arc-shaped recessed portion 312 is recessed in the direction away from the groove space of the U-shaped groove 31, and the connection between the arc-shaped recessed portion 312 and the groove wall of the U-shaped groove 31 is a smooth transition connection, and the connection between the arc-shaped recessed portion 312 and the bottom of the U-shaped groove 31 is also a smooth transition connection.

[0124] Regarding the structure of the swing arm 2, as described in (a) above, refer to Fig. 9 As shown, the swing arm 2 also includes the above-mentioned swing rod 21, side ribs 22 and connecting ribs 23, and the mounting groove 211 and the cylindrical groove 212 are both arranged on the swing rod 21. The specific contents can be referred to above, and will not be repeated here.

[0125] In the disclosed embodiment, the movable contact assembly can allow a portion of the metal block to extend into the mounting groove of the swing arm, so that the width of the mounting groove can be opened larger, thereby making the swing arm easier to process and shape. The movable contact assembly can also allow the rolled-up portion of the movable contact piece to be installed in the swing arm, so that the inner diameter of the cylindrical groove of the swing arm can be made larger, thereby making the swing arm easier to process and shape. Therefore, whether a portion of the metal block is extended into the swing arm, or the rolled-up portion of the movable contact piece is installed in the swing arm, the width of the groove opened by the swing arm can be increased, thereby making the swing arm easier to process and shape.

[0126] The disclosed embodiment also provides a contact switch, which includes a static contact assembly and the above-mentioned dynamic contact assembly. The contact switch can be used in a push switch or in a socket. The embodiment does not limit the application scenario of the contact switch, and can be used in any component including a dynamic contact and a static contact.

[0127] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A dynamic touch component, characterized in that: The moving contact assembly comprises a moving contact piece (1), a swing arm (2) and a magnetic metal block (3); The swing arm (2) has a mounting groove (211), and the groove opening of the mounting groove (211) is located at an end of the swing arm (2) away from the swing point, one side of the mounting groove (211) is open, and the open opening of the mounting groove (211) is located at a side portion of the swing arm (2); A portion of the movable contact member (1) is located in the installation groove (211), and another portion passes through a notch of the installation groove (211) and extends out of the swing arm (2); The metal block (3) is fixed on the portion of the movable contact (1) extending from the swing arm (2), and the metal block (3) is used to be adsorbed on the magnetic block of the contact switch.

2. The dynamic contact assembly according to claim 1, characterized in that: The metal block (3) has an extension arm (32), and the extension arm (32) is fixed in the installation groove (211).

3. The dynamic contact assembly according to claim 2, characterized in that: The mounting groove (211) has a first limiting structure (2111), the extension arm (32) has a second limiting structure (321), and the extension arm (32) is fixed in the mounting groove (211) through the cooperation of the first limiting structure (2111) and the second limiting structure (321).

4. The dynamic contact assembly according to claim 3, characterized in that: The first limiting structure (2111) is a groove with one side open, wherein the groove of the first limiting structure (2111) faces the groove space of the mounting groove (211), and the opening of the first limiting structure (2111) and the opening of the mounting groove (211) are located on the same side of the swing arm (2); The second limiting structure (321) is a bent portion, and the extension arm (32) is clamped in the first limiting structure (2111) through the second limiting structure (321) and is fixed in the installation groove (211).

5. The dynamic contact assembly according to claim 1, characterized in that: The swing arm (2) has a cylindrical groove (212), the cylindrical groove (212) is located at the bottom of the mounting groove (211) and is in communication with the mounting groove (211), and the groove opening of the cylindrical groove (212) and the opening of the mounting groove (211) are located on the same side of the swing arm (2); The movable contact member (1) comprises a rolled portion (131), and the rolled portion (131) is interference fit in the cylindrical groove (212).

6. The dynamic contact assembly according to claim 5, characterized in that: The movable contact member (1) comprises a movable contact plate (11) and a spring sheet (13), wherein a portion of the spring sheet (13) close to a first end of the spring sheet (13) is in a rolled-up state to form a rolled-up portion (131), and a portion close to a second end of the spring sheet (13) extends out of the mounting groove (211) and is fixed to the movable contact plate (11), wherein the first end and the second end of the spring sheet (13) are two ends that are opposite to each other along the length direction of the spring sheet (13).

7. The dynamic contact assembly according to claim 6, characterized in that: The metal block (3) has a U-shaped groove (31), and a groove wall of the U-shaped groove (31) has a third limiting structure (311); The movable touch plate (11) has a fourth limiting structure (111), the U-shaped groove (31) is clamped on the movable touch plate (11) and the portion of the elastic sheet (13) extending out of the mounting groove (211), and the third limiting structure (311) and the fourth limiting structure (111) cooperate.

8. The dynamic contact assembly according to claim 7, characterized in that: The movable contact member (1) further comprises a movable contact point (12), and the movable contact plate (11) and the elastic sheet (13) are riveted via the movable contact point (12).

9. The dynamic contact assembly according to claim 6, characterized in that: The first end of the movable touch plate (11) is located at the slot opening of the mounting slot (211), and the second end protrudes from the mounting slot (211), and the sum of the thicknesses of the movable touch plate (11) and the elastic sheet (13) is smaller than the slot width of the mounting slot (211) at the slot opening along the thickness direction of the movable touch plate (11).

10. The dynamic contact assembly according to claim 9, characterized in that: The elastic sheet (13) has a convex bump (132), and the convex bump (132) is interference fit in the installation groove (211).

11. The dynamic contact assembly according to any one of claims 1 to 10, characterized in that: The metal block (3) has a U-shaped groove (31), and the U-shaped groove (31) is clamped on the portion of the movable contact (1) that extends out of the installation groove (211).

12. The dynamic contact assembly according to claim 11, characterized in that: The notch of the installation groove (211) and the notch of the U-shaped groove (31) are arranged front to back along the length direction of the movable contact (1), and the notch of the U-shaped groove (31) does not extend into the notch of the installation groove (211).

13. The dynamic contact assembly according to claim 11, characterized in that: The groove bottom and groove wall of the U-shaped groove (31) are connected via an arc-shaped recessed portion (312), wherein the arc-shaped recessed portion (312) is recessed in a direction away from the groove space of the U-shaped groove (31).

14. A contact switch, characterized in that: The contact switch comprises the moving contact assembly according to any one of claims 1 to 13.

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