Switch contact

Abstract

The utility model provides a switch contact which comprises a first contact and a second contact which are oppositely arranged, two ends of the first contact and two ends of the second contact are provided with clamping gaps used for clamping a static contact, a moving contact further comprises an integrally-formed elastic piece, and the elastic piece comprises a first elastic piece, a second elastic piece and a connecting piece. The first elastic piece and the second elastic piece act on the two opposite faces of the first contact and the second contact respectively to provide inward clamping force for the first contact and the second contact, the middles of the first elastic piece and the second elastic piece are arranged in the middles of the first contact and the second contact, the two ends of the first elastic piece in the length direction are connected with the two ends of the first contact, and the two ends of the second elastic piece in the length direction are connected with the two ends of the second contact. The two ends of the second elastic piece in the length direction are connected with the two ends of the second contact, the connecting piece is connected with the middle of the first elastic piece and the middle of the second elastic piece and wraps the middle of the first contact and the middle of the second contact, so that the first elastic piece and the second elastic piece deform, a locking piece is not needed, assembly is easy, and cost is low.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a switch contact. Background Art

[0002] Isolating switches have the function of isolating power supply and disconnecting circuit. With the rapid development of photovoltaic field, isolating switches have also been widely used. In recent years, higher and higher requirements have been put forward for the current carrying capacity and temperature rise performance of isolating switches.

[0003] An isolating switch includes switch contacts, which in turn comprise a moving contact and a stationary contact. The opening and closing of these contacts disconnect and connect the circuit. In existing technology, the internal contact resistance between the moving and stationary contacts is too high, increasing the internal resistance of the switch and reducing the current-carrying capacity and temperature-rise performance of the isolating switch. One way to reduce this internal contact resistance is to increase the cross-sectional area of ​​the conductor. Another way is to increase the clamping force between the moving and stationary contacts to ensure reliable contact between them.

[0004] In the prior art, an elastic sheet is usually used to act on the moving contact to increase the clamping force between the moving contact and the static contact, and the elastic sheet needs to be locked by a locking member, which has the problems of high cost and complex assembly. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a switch contact with low contact internal resistance, which is suitable for isolating switches.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a switch contact, comprising a movable contact, wherein the movable contact comprises a first contact and a second contact arranged opposite to each other, wherein both ends of the first contact and the second contact have a clamping gap for clamping a stationary contact.

[0008] The movable contact further includes an integrally formed elastic member, the elastic member including a first elastic sheet, a second elastic sheet and a connecting sheet, the first elastic sheet and the second elastic sheet respectively acting on the opposite sides of the first contact and the second contact to provide an inward clamping force to the first contact and the second contact,

[0009] The middle parts of the first elastic piece and the second elastic piece are placed in the middle parts of the first contact and the second contact, the two ends of the first elastic piece in the length direction are connected to the two ends of the first contact, and the two ends of the second elastic piece in the length direction are connected to the two ends of the second contact.

[0010] The connecting piece connects the middle parts of the first elastic piece and the second elastic piece, and the connecting piece wraps the middle parts of the first contact and the second contact, so that the first elastic piece and the second elastic piece are deformed.

[0011] In a possible implementation, first limiting portions are provided at both ends of the first elastic piece and the second elastic piece, and second limiting portions are provided on the first contact and the second contact for cooperating with the first limiting portions to achieve limiting.

[0012] In one possible implementation, the first limiting portion is a hole-shaped structure or a groove structure, the second limiting portion is a boss structure, and the first limiting portion is sleeved or engaged on the second limiting portion; or, the first limiting portion is a boss structure, the second limiting portion is a hole-shaped structure or a groove structure, and the first limiting portion is inserted into the second limiting portion.

[0013] In one possible implementation, the connecting piece is an extension of the first elastic piece and the second elastic piece in the width direction, and the connecting piece is bent toward one side of the width direction of the first contact and the second contact. The connecting piece includes a connecting portion and an installation portion. The connecting portion is located on one side of the moving contact and connects the first elastic piece and the second elastic piece. The installation portion is arranged on one side or both sides of the elastic member.

[0014] In one possible implementation, a first mounting portion is provided on the mounting portion on one side of the elastic member, and a second mounting portion is provided on the elastic member for cooperating with the first mounting portion to achieve installation; or a first mounting portion is provided on the mounting portion on one side of the elastic member, and a second mounting portion is provided on the mounting portion on the other side of the elastic member for cooperating with the first mounting portion to achieve installation.

[0015] In one possible implementation, the first mounting portion is a hook structure, the second mounting portion is a hole structure or a groove structure, and the first mounting portion extends into the second mounting portion.

[0016] In one possible implementation, the first elastic piece or the second elastic piece includes a first section, two second sections and two third sections, the first section is placed in the middle of the first contact and the second contact, the two ends of the first section are respectively bent at a certain angle and connected to one end of the two second sections, the other ends of the two second sections are respectively bent at a certain angle and connected to one end of the two third sections, and the other ends of the two third sections are respectively connected to the two ends of the first contact or the second contact.

[0017] In one possible implementation, at least one boss is provided between the first contact and the second contact. The boss spaced the first contact and the second contact to form the clamping gap. The boss is integrally formed with the first contact or the second contact.

[0018] In one possible implementation, the first contact is provided with the boss on a side facing the second contact, and the second contact is provided with the boss on a side facing the first contact. The boss on the first contact abuts against the boss on the second contact, so that the first contact and the second contact are spaced apart at both ends to form the clamping gap.

[0019] In a possible implementation, limiting grooves are provided on sides of the first contact and the second contact, and the connecting piece is located in the limiting grooves.

[0020] In one possible implementation, the side protrusions on both sides of the first contact and the second contact are provided with arc-shaped protrusions, and the arc-shaped protrusions of the first contact and the arc-shaped protrusions of the second contact are arranged opposite to each other and the distance between them is greater than the distance of the clamping gap between the first contact and the second contact.

[0021] In a possible implementation, arc-shaped protrusions are provided on both sides of the first contact and the second contact, or an arc-shaped protrusion is provided on one side of the first contact and the second contact.

[0022] The movable contact of the utility model increases the clamping force of the first contact and the second contact through an integrally formed elastic member, the elastic member comprising an integrally formed first elastic piece, a second elastic piece and a connecting piece. The first elastic piece and the second elastic piece are respectively provided on two opposite sides of the first contact and the second contact, the first elastic piece and the second elastic piece are connected by the connecting piece, and the middle parts of the first contact and the second contact are wrapped, so that the first elastic piece and the second elastic piece are deformed, thereby causing the first elastic piece and the second elastic piece to provide an inward clamping force to the first contact and the second contact. The connecting piece and the first elastic piece and the second elastic piece are integrally formed without the need for a separate locking piece, which is simple to assemble and low in cost. At the same time, the first elastic piece and the second elastic piece act on the two ends of the first contact and the second contact respectively. When the clamping gap at the two ends of the moving contact clamps the static contact, a strong clamping force is generated, thereby ensuring a reliable connection between the moving contact and the static contact, reducing the contact internal resistance between the moving contact and the static contact, reducing the internal resistance of the switch, and thus improving the current carrying capacity and temperature rise performance of the disconnector.

[0023] Furthermore, by setting first limiting parts at both ends of the first elastic piece and the second elastic piece respectively, and setting second limiting parts correspondingly on the first contact and the second contact, the first elastic piece and the second elastic piece can be respectively installed and fixed on the first contact and the second contact through the cooperation of the first limiting part and the second limiting part.

[0024] Furthermore, the first elastic sheet and the second elastic sheet are integrally formed by extending a connecting portion of a connecting sheet between the first elastic sheet and the second elastic sheet in the width direction, which has a simple structure, convenient operation and low cost. A mounting portion is extended on one or both sides in the width direction of the elastic member for fixed connection, so that the connecting sheet can wrap the middle part of the first contact and the second contact.

[0025] Furthermore, by arranging an integrally formed boss on the side of the first contact facing the second contact, and arranging an integrally formed boss on the side of the second contact facing the first contact, the boss on the first contact is abutted against the boss on the second contact, forming a clamping gap at both ends of the moving contact. This design enables the clamping force of the elastic member to act entirely on the boss, so that the clamping is firm and the force is stable.

[0026] Furthermore, by providing arc-shaped protrusions at the ends of the first contact and the second contact, the opening angle thereof can be larger than the distance of the clamping gap between the first contact and the second contact, thereby making it easier to plug the movable contact and the stationary contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1a and Figure 1b This is a structural diagram of the movable contact of the utility model;

[0028] Figure 2a This is a schematic structural diagram of the facing surfaces of the first contact and the second contact of the present invention;

[0029] Figure 2b This is a schematic structural diagram of the back faces of the first contact and the second contact of the present invention;

[0030] Figure 3a This is a schematic structural diagram of an embodiment of the elastic member of the utility model after installation;

[0031] Figure 3b This is a planar expansion diagram of an embodiment of the elastic member of the utility model;

[0032] In the figure: moving contact 100; first contact 1; second contact 2; elastic member 3; first elastic sheet 31; second elastic sheet 32; connecting sheet 4; first limiting portion 33; second limiting portion 34; connecting portion 41; mounting portion 42; first mounting portion 43; second mounting portion 44; first section 35; second section 36; third section 37; boss 5; limiting groove 6; arc-shaped protrusion 7. DETAILED DESCRIPTION

[0033] The following embodiments are given in conjunction with the accompanying drawings to further illustrate the specific implementation of the present utility model. The protection scope of the present utility model is not limited to the description of the following embodiments.

[0034] The isolating switch includes a shell and internal switch contacts, the shell includes a base, the switch contacts include a moving contact 100 and two static contacts, the moving contact 100 and the static contact are installed on the base, the static contact is fixedly installed on the base, the moving contact 100 can be rotatably installed in the base, and is connected and disconnected with the static contact by rotation. The moving contact 100 is a long plate-shaped structure, with a rotating arrangement in the middle and a clamping gap at both ends. The moving contact 100 is clamped and connected with the two static contacts through the clamping gap at both ends. When the moving contact 100 rotates to a certain angle, its two ends can contact and close with the two static contacts to achieve circuit conduction. The moving contact 100 rotates again to disconnect from the two static contacts to achieve circuit disconnection. The isolating switch is usually connected in series in the circuit, and the conduction and disconnection of the circuit are controlled by connecting and disconnecting the moving contact 100 with the two static contacts.

[0035] For example, Figure 1a and Figure 1b As shown, the present invention provides a switch contact, including a movable contact 100, wherein the movable contact 100 includes a first contact 1 and a second contact 2 arranged opposite to each other, wherein both ends of the first contact 1 and the second contact 2 have a clamping gap for clamping a stationary contact.

[0036] The movable contact 100 further includes an integrally formed elastic member 3, which includes a first elastic piece 31, a second elastic piece 32, and a connecting piece 4. The first elastic piece 31 and the second elastic piece 32 act on the opposite sides of the first contact 1 and the second contact 2, respectively, to provide an inward clamping force on the first contact 1 and the second contact 2.

[0037] The middle of the first elastic piece 31 and the second elastic piece 32 are placed in the middle of the first contact 1 and the second contact 2. The two ends of the first elastic piece 31 in the length direction are connected to the two ends of the first contact 1, and the two ends of the second elastic piece 32 in the length direction are connected to the two ends of the second contact 2.

[0038] The connecting piece 4 connects the middle parts of the first elastic piece 31 and the second elastic piece 32 , and the connecting piece 4 wraps the middle parts of the first contact 1 and the second contact 2 , so that the first elastic piece 31 and the second elastic piece 32 are deformed.

[0039] In this embodiment, the movable contact 100 increases the clamping force of the first contact 1 and the second contact 2 by an integrally formed elastic member 3. The elastic member 3 includes an integrally formed first elastic piece 31, a second elastic piece 32 and a connecting piece 4. The first elastic piece 31 and the second elastic piece 32 are respectively provided on two opposite sides of the first contact 1 and the second contact 2. The first elastic piece 31 and the second elastic piece 32 are connected by the connecting piece 4, and the middle parts of the first contact 1 and the second contact 2 are wrapped, that is, the connecting piece 4 surrounds the middle parts of the first contact 1 and the second contact 2, so that the first elastic piece 31 and the second elastic piece 32 are deformed, thereby causing the first elastic piece 31 to deform. The second elastic piece 32 provides an inward clamping force on the first contact 1 and the second contact 2. The connecting piece 4 is integrally formed with the first elastic piece 31 and the second elastic piece 32, and no additional locking parts are required. The assembly is simple and the cost is low. At the same time, the first elastic piece 31 and the second elastic piece 32 act on the two ends of the first contact 1 and the second contact 2 respectively. When the clamping gap at both ends of the moving contact 100 clamps the static contact, a strong clamping force is generated, which ensures the reliable connection between the moving contact 100 and the static contact, reduces the contact internal resistance between the moving contact 100 and the static contact, reduces the internal resistance of the switch, and thereby improves the current carrying capacity and temperature rise performance of the disconnector.

[0040] Preferably, Figure 1a As shown, first limiting portions 33 are provided at both ends of the first elastic piece 31 and the second elastic piece 32, and second limiting portions 34 are provided on the first contact 1 and the second contact 2 to cooperate with the first limiting portions 33 to achieve limiting positions. Through the cooperation of the first limiting portions 33 and the second limiting portions 34, the first elastic piece 31 and the second elastic piece 32 can be respectively mounted and fixed on the first contact 1 and the second contact 2.

[0041] Further, such as Figure 2b and Figure 3a As shown, the first limiting portion 33 can be a hole-shaped structure or a groove structure, and the second limiting portion 34 can be a boss structure, and the first limiting portion 33 is sleeved or engaged on the second limiting portion 34; or the first limiting portion 33 can be a boss structure, and the second limiting portion 34 can be a hole-shaped structure or a groove structure, and the first limiting portion 33 is inserted into the second limiting portion 34. Through the cooperation of the boss structure and the hole structure or the groove structure, the structure is simple and easy to install.

[0042] Preferably, Figure 3a and Figure 3bAs shown, the connecting piece 4 is an extension of the first elastic piece 31 and the second elastic piece 32 in the width direction, and the extension is bent to one side of the width direction of the first contact 1 and the second contact 2. The connecting piece 4 includes a connecting portion 41 and a mounting portion 42. The connecting portion 41 is located on one side of the moving contact 100 and connects the middle of the first elastic piece 31 and the second elastic piece 32. The mounting portion 42 can be provided on one side of the elastic member 3 or on both sides of the elastic member 3. By extending the connecting portion 41 of the connecting piece 4 between the first elastic piece 31 and the second elastic piece 32 in the width direction, the first elastic piece 31 and the second elastic piece 32 are integrally formed and fixedly connected by the mounting portion 42. Extending the mounting portion 42 on one side or both sides of the width direction of the elastic member 3 allows the connecting piece 4 to wrap the middle of the first contact 1 and the second contact 2. The elastic member 4 has a simple structure, is easy to operate and has low cost. It can be punched by a punching machine during manufacturing. Among them, Figure 3b The elastic member 3 of the movable contact 100 of the present application is an expanded view of an integrally formed structure. Figure 3b The schematic structural diagram of an embodiment in which the mounting portions 42 are arranged on both sides of the elastic member 3 is also shown.

[0043] Further, when the mounting portion 42 is only provided on one side of the elastic member 3, a first mounting portion 43 may be provided on the mounting portion 42 on one side of the elastic member 3, and a second mounting portion 44 that cooperates with the first mounting portion 43 to achieve installation is provided on the elastic member 3; or when the mounting portion 42 is provided on both sides of the elastic member 3, a first mounting portion 43 is provided on the mounting portion 42 on one side of the elastic member 3, and a second mounting portion 44 that cooperates with the first mounting portion 43 to achieve installation is provided on the mounting portion 42 on the other side of the elastic member 3, and the first mounting portion 43 and the second mounting portion 44 are fixedly connected.

[0044] By cooperating with the first mounting portion 43 and the second mounting portion 44 , inward pressure can be applied to the first elastic piece 31 and the second elastic piece 32 in the thickness direction of the movable contact 100 , causing deformation thereof, thereby generating an inward clamping force on the first contact 1 and the second contact 2 .

[0045] Furthermore, the first mounting portion 43 may be a hook structure, and the second mounting portion 44 may be a hole structure or a groove structure. The first mounting portion 43 extends into the second mounting portion 44, and the hook structure cooperates with the hole structure or the groove structure to achieve installation and fixation. Of course, in some possible implementations, the first mounting portion 43 may also be a hole structure or a groove structure, and the second mounting portion 44 may also be a hook structure. The first mounting portion 43 and the second mounting portion 44 may also be fixedly connected by riveting, welding, etc., all of which fall within the scope of protection of this application.

[0046] Preferably, Figure 1bAs shown, the first elastic piece 31 and the second elastic piece 32 are multiple bending structures. The first elastic piece 31 or the second elastic piece 32 includes a first section 35, two second sections 36 and two third sections 37. The first section 35 is placed in the middle of the first contact 1 and the second contact 2. The two ends of the first section 35 are bent at a certain angle and connected to one end of the two second sections 36. The other ends of the two second sections 36 are bent at a certain angle and connected to one end of the two third sections 37. The other ends of the two third sections 37 are respectively connected to the two ends of the first contact 1 or the second contact 2. By setting the first elastic piece 31 and the second elastic piece 32 as multiple bending nodes, it can have a larger elastic deformation space, generate a stronger clamping force on the first contact 1 and the second contact 2, ensure the stability of the structure after the first contact 1 and the second contact 2 are installed, and at the same time, the structure has a beautiful shape and is easy to install.

[0047] Furthermore, the first elastic piece 31 and the second elastic piece 32 may also be arc-shaped structures without bending points, which can also produce a better elastic effect and fall within the protection scope of this application.

[0048] Further, such as Figure 1a As shown, when the first elastic piece 31 and the second elastic piece 32 are installed on the first contact 1 and the second contact 2 through the connecting piece 4, the first elastic piece 31 and the second elastic piece 32 are deformed, and there may be a gap between the middle part of the first elastic piece 31 and the first contact 1, and there may be a gap between the middle part of the second elastic piece 32 and the second contact 2. Of course, in other embodiments, when the first elastic piece 31 and the second elastic piece 32 are fixedly installed on the first contact 1 and the second contact 2 respectively, the connecting piece 4 can also make the middle part of the first elastic piece 31 and the middle part of the second elastic piece 32 tightly adhere to their corresponding first contact 1 and second contact 2 respectively, which all fall within the scope of protection of the present application.

[0049] Preferably, Figure 1a 、 Figure 2a and Figure 2b As shown, at least one boss 5 may be provided between the first contact 1 and the second contact 2. The boss 5 spaced the first contact 1 and the second contact 2 to form the clamping gap. The boss 5 may be integrally formed with the first contact 1 or the second contact 2. Of course, the boss 5 may also be fixed between the first contact 1 and the second contact 2 in a secondary installation, which falls within the scope of protection of this application. Figure 2a It shows a schematic structural diagram of the first contact 1 and the second contact 2 facing each other in the present application. Figure 2b It shows a schematic structural diagram of the back surfaces of the first contact 1 and the second contact 2 of the present application.

[0050] Furthermore, the first contact 1 is provided with the boss 5 on the side facing the second contact 2, and the second contact 2 is provided with the boss 5 on the side facing the first contact 1. The boss 5 on the first contact 1 abuts against the boss 5 on the second contact 2, so that the first contact 1 and the second contact 2 are spaced apart at both ends to form the clamping gap. The first contact 1 and the second contact 2 can both be integrally formed, and the boss 5 can be stamped on the back of the first contact 1 and the second contact 2, which is simple in structure and low in cost.

[0051] Preferably, the boss 5 is arranged at the center of the first contact 1 and the second contact 2 in the width direction. This design can make the first contact 1 and the second contact 2 more stable after installation, and the opposite sides of the first contact 1 and the second contact 2 will not move closer or farther away during the operation of the moving contact 100.

[0052] Preferably, Figure 2a As shown, there are four bosses 5, which are respectively arranged on the opposite surfaces of the first contact 1 and the second contact 2; the bosses 5 are respectively arranged on both sides of the middle part of the first contact 1 and the second contact 2 along the length direction of the movable contact 100, and the bosses 5 of the first contact 1 and the bosses 5 on the second contact 2 correspond one to one in the thickness direction of the movable contact 100. By arranging the bosses 5 at both ends of the first contact 1 and the second contact 2, the first contact 1 and the second contact 2 can have better stability after installation.

[0053] Preferably, in one possible implementation, there are two bosses 5, which are respectively arranged on the first contact 1 and the second contact 2, and the two bosses 5 are respectively arranged on both sides of the middle of the moving contact 100; or there are two bosses 5, which are respectively arranged opposite to each other in the middle of the first contact 1 and the second contact 2.

[0054] Preferably, in one possible implementation method, the boss 5 can also be arranged only on the first contact 1 or the second contact 2. For example, there are two bosses 5, which are respectively arranged on both sides of the middle of the first contact 1 or the second contact 2; or there is one boss 5, which is arranged in the middle of the first contact 1 or the second contact 2, all of which fall within the scope of protection of this application.

[0055] In addition, as another embodiment, the clamping gap may be formed between the first contact 1 and the second contact 2 without the boss 5. For example, the middle portion of the first contact 1 may be bent and raised toward the second contact 2 to form a first mounting portion, the first mounting portion being parallel to the ends of the first contact 1 and located in different planes, and the first mounting portion being in close contact with the middle portion of the second contact 2; or the middle portion of the second contact 2 may be bent and raised toward the first contact 1 to form a second mounting portion, the second mounting portion being parallel to the ends of the second contact 2 and located in different planes, and the second mounting portion being in close contact with the middle portion of the first contact 1; or alternatively, the first contact 1 includes the first mounting portion, and the second contact 2 includes the second mounting portion, the first mounting portion being in close contact with the second mounting portion, and the ends of the first contact 1 and the second contact being spaced apart to form a clamping gap.

[0056] Preferably, Figure 2a and Figure 2b As shown, limiting grooves 6 can also be provided on the sides of the first contact 1 and the second contact 2. The limiting grooves 6 can be provided on one side or both sides of the first contact 1 and the second contact 2. The connecting piece 4 of the first elastic piece 31 and / or the second elastic piece 32 is located in the limiting groove 6, limiting the movement of the first elastic piece 31 and / or the second elastic piece 32, so that the first elastic piece 31 and / or the second elastic piece 32 is firmly fixed in the length direction of the moving contact 100.

[0057] Preferably, Figure 1a 、 Figure 2a and Figure 2b As shown, the side protrusions on both sides of the first contact 1 and the second contact 2 are provided with arc-shaped protrusions 7. The arc-shaped protrusions 7 of the first contact 1 and the arc-shaped protrusions 7 of the second contact 2 are arranged opposite each other and the distance between them is greater than the distance of the clamping gap between the first contact 1 and the second contact 2. By providing the arc-shaped protrusions 7 at the ends of the first contact 1 and the second contact, their opening angle can be greater than the distance of the clamping gap between the first contact 1 and the second contact 2, thus making it easier to plug the movable contact 100 into the stationary contact.

[0058] Furthermore, arc-shaped protrusions 7 are provided on both sides of the first contact 1 and the second contact 2, or on one side of each of the first contact 1 and the second contact 2. The arc-shaped protrusions 7 conform to the rotation direction of the movable contact 100 and are plug-fitted with the static contact. When the movable contact 100 rotates clockwise or counterclockwise to be plug-fitted with the static contact, the arc-shaped protrusions 7 are provided on one side of the first contact 1 and the second contact 2. The movable contact 100 can be connected to the static contact either by clockwise rotation or by counterclockwise rotation. In this case, the arc-shaped protrusions 7 are provided on both sides of the first contact 1 and the second contact 2, respectively, satisfying the conditions for connecting to the static contact either by clockwise or counterclockwise rotation.

[0059] Of course, in some less desirable embodiments, the arcuate protrusions 7 may not be arranged opposite each other. They may be arranged on only one side, or only on the first contact 1 or the second contact 2, thereby reducing production costs. Therefore, the connection relationship between the arcuate protrusion 7 and the movable contact 100 can have a variety of embodiments. All of the above embodiments that can be devised by those skilled in the art based on the existing technology are within the scope of protection of this application. Furthermore, the arcuate protrusion 7 may not be an absolute arcuate structure, as long as it facilitates insertion with the static contact and achieves the same technical effect. These embodiments are within the scope of protection of this application and will not be elaborated on here.

[0060] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are conventionally placed directions or positional relationships during use. They are intended solely for ease of description and do not imply that the devices or components referred to must have a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and description and should not be construed as indicating relative importance.

[0061] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A switch contact, comprising a movable contact (100), wherein the movable contact (100) comprises a first contact (1) and a second contact (2) arranged opposite to each other, wherein both ends of the first contact (1) and the second contact (2) have a clamping gap for clamping a stationary contact, and wherein: The movable contact (100) further comprises an integrally formed elastic member (3), wherein the elastic member (3) comprises a first elastic piece (31), a second elastic piece (32) and a connecting piece (4), wherein the first elastic piece (31) and the second elastic piece (32) act on two opposite sides of the first contact (1) and the second contact (2) respectively, providing an inward clamping force to the first contact (1) and the second contact (2). The middle parts of the first elastic piece (31) and the second elastic piece (32) are placed in the middle parts of the first contact (1) and the second contact (2), the two ends of the first elastic piece (31) in the length direction are connected to the two ends of the first contact (1), and the two ends of the second elastic piece (32) in the length direction are connected to the two ends of the second contact (2). The connecting piece (4) connects the middle parts of the first elastic piece (31) and the second elastic piece (32), and the connecting piece (4) wraps the middle parts of the first contact (1) and the second contact (2), causing the first elastic piece (31) and the second elastic piece (32) to deform.

2. The switch contact according to claim 1, characterized in that: A first limiting portion (33) is provided at both ends of the first elastic piece (31) and the second elastic piece (32), and a second limiting portion (34) is provided on the first contact (1) and the second contact (2) for cooperating with the first limiting portion (33) to achieve limiting.

3. The switch contact according to claim 2, characterized in that: The first limiting portion (33) is a hole-shaped structure or a groove structure, the second limiting portion (34) is a boss structure, and the first limiting portion (33) is sleeved or engaged with the second limiting portion (34); or the first limiting portion (33) is a boss structure, the second limiting portion (34) is a hole-shaped structure or a groove structure, and the first limiting portion (33) is inserted into the second limiting portion (34).

4. The switch contact according to claim 1, characterized in that: The connecting piece (4) is an extension of the first elastic piece (31) and the second elastic piece (32) in the width direction. The connecting piece (4) is bent toward one side of the width direction of the first contact (1) and the second contact (2). The connecting piece (4) includes a connecting portion (41) and a mounting portion (42). The connecting portion (41) is located on one side of the moving contact (100) and connects the first elastic piece (31) and the second elastic piece (32). The mounting portion (42) is provided on one side or both sides of the elastic member (3).

5. The switch contact according to claim 4, characterized in that: A first mounting portion (43) is provided on the mounting portion (42) on one side of the elastic member (3), and a second mounting portion (44) fixedly connected to the first mounting portion (43) is provided on the elastic member (3); or a first mounting portion (43) is provided on the mounting portion (42) on one side of the elastic member (3), and a second mounting portion (44) fixedly connected to the first mounting portion (43) is provided on the mounting portion (42) on the other side of the elastic member (3).

6. The switch contact according to claim 5, characterized in that: The first mounting portion (43) is a hook structure, the second mounting portion (44) is a hole structure or a groove structure, and the first mounting portion (43) extends into the second mounting portion (44).

7. The switch contact according to claim 1, characterized in that: The first elastic piece (31) or the second elastic piece (32) comprises a first section (35), two second sections (36) and two third sections (37), wherein the first section (35) is placed in the middle of the first contact (1) and the second contact (2), the two ends of the first section (35) are bent at a certain angle and connected to one end of the two second sections (36), the other ends of the two second sections (36) are bent at a certain angle and connected to one end of the two third sections (37), and the other ends of the two third sections (37) are respectively connected to the two ends of the first contact (1) or the second contact (2).

8. The switch contact according to claim 1, characterized in that At least one boss (5) is provided between the first contact (1) and the second contact (2), the boss (5) causing the first contact (1) and the second contact (2) to be spaced apart to form the clamping gap, and the boss (5) is integrally formed with the first contact (1) or the second contact (2).

9. The switch contact according to claim 8, characterized in that The first contact (1) is provided with the boss (5) on the side facing the second contact (2), and the second contact (2) is provided with the boss (5) on the side facing the first contact (1). The boss (5) on the first contact (1) and the boss (5) on the second contact (2) abut against each other, so that the first contact (1) and the second contact (2) are spaced apart at both ends to form the clamping gap.

10. The switch contact according to claim 1, characterized in that Limiting grooves (6) are provided on the sides of the first contact (1) and the second contact (2), and the connecting piece (4) is located in the limiting groove (6).

11. The switch contact according to claim 1, characterized in that The side protrusions on both sides of the first contact (1) and the second contact (2) are provided with arc-shaped protrusions (7); the arc-shaped protrusions (7) of the first contact (1) and the arc-shaped protrusions (7) of the second contact (2) are arranged opposite to each other and the distance between them is greater than the distance of the clamping gap between the first contact (1) and the second contact (2).

12. The switch contact according to claim 11, characterized in that The side edges of both sides of the first contact (1) and the second contact (2) are both provided with arc-shaped protrusions (7), or the side edges of one side of the first contact (1) and the second contact (2) are both provided with arc-shaped protrusions (7).

Images