A movable terminal structure for switch

Abstract

The utility model discloses a movable terminal structure for a switch, comprising a base, a main body and a fixed bracket, wherein the two end positions of the inner wall at the bottom of the base are respectively clamped with a static terminal and a movable terminal; the movable terminal is an integrated structure composed of a wiring section, a bending section and a contact section, the wiring section is clamped on the inner wall at the bottom of the base, the contact section is located above the wiring section and is connected through the bending section; the contact section comprises a first bending portion, a second bending portion, a third bending portion and a fourth bending portion, and the utility model has a reasonable structural design, and by arranging the first bending portion, the second bending portion, the third bending portion and the fourth bending portion on the contact section, when the user presses the switch, the downward or upward force of the movable terminal is more uniform, and the principle of the lever structure is adopted to achieve force separation; this design prevents the structure from being deformed after the user uses it for a long time, thereby enhancing the stability of the structure.

Description

Technical Field

[0001] The utility model relates to the field of switch equipment, in particular to a movable terminal structure for a switch. Background Art

[0002] In the existing switches, movable terminals and static terminals are provided inside for conducting electricity. The existing movable terminals are generally arranged in a straight line at the contact end. Such a setting usually requires greater force when pressing down or bouncing up when pressing the switch, and such operation is not labor-saving enough for the user; the existing structure may be deformed after long-term use. This design will affect the stability of the contact or internal structure of the switch, which is not convenient for users to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a movable terminal structure for a switch in view of the current status of the prior art.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] A movable terminal structure for a switch comprises a base, a main body and a fixed bracket, wherein the main body is fixedly installed inside the base, and a static terminal and a movable terminal are respectively clamped at two end positions of the inner wall at the bottom of the base; the movable terminal is an integrated structure consisting of a wiring section, a bending section and a contact section, the wiring section is clamped on the inner wall at the bottom of the base, and the contact section is located above the wiring section and is connected through the bending section; the contact section comprises a first bending portion, a second bending portion, a third bending portion and a fourth bending portion; the first bending portion is bent upward in a curved surface, the second bending portion is arranged parallel to the wiring terminal, the third bending portion is bent downward in a curved surface, and the fourth bending portion is arranged parallel to the second bending portion.

[0006] The effects achieved by the above components are: by designing the wiring section, the bending section and the contact section as an integrated design, the stability of the structure is improved; by arranging the first bending portion, the second bending portion, the third bending portion and the fourth bending portion on the contact section, when the user presses the switch, the downward or upward force of the moving terminal is more uniform, and the principle of the lever structure is adopted to achieve force separation; this design prevents the structure from being deformed after long-term use by the user, thereby enhancing the stability of the structure.

[0007] Preferably, the fixed bracket is arranged on the upper end of the main body through a snap-fit ​​structure; the snap-fit ​​structure includes fixed columns arranged on both sides of the fixed bracket and limiting columns arranged on both sides of the main body; the fixed column includes a first extension part and a second extension part; the first extension part extends outward, and the second extension part extends downward; a clamping block is arranged at the bottom end of the second extension part; and a clamping groove which cooperates with the clamping block is arranged on the limiting column.

[0008] The effects achieved by the above components are: fixing by setting a snap-on structure; a card block is set on the fixing column and a card slot is set on the limiting column, so that the card block can be connected in the card slot. This design makes the structure more stable and there is no risk of falling off.

[0009] Preferably, a bimetallic strip is fixedly installed on the top of the static terminal; the bimetallic strip includes a first metal strip fixedly connected to the top of the static terminal, a second metal strip is fixedly connected to the middle position of the first metal strip, a bimetallic strip contact is fixedly connected to the end of the second metal strip, and an inwardly concave arc groove is provided at one end of the first metal strip.

[0010] The effect achieved by the above components is: through the setting of the concave arc groove, the stress generated when one end of the first metal sheet is pressed down can be removed, thereby avoiding serious deformation on both sides of one end of the first metal sheet;.

[0011] Preferably, a movable terminal contact is riveted on the bottom of the fourth bent portion; the movable terminal contact is located directly above the bimetallic strip contact; and a protrusion is fixedly installed on the top of the second bent portion.

[0012] Compared with the prior art, the advantages of the utility model are: by designing the wiring section, the bending section and the contact section as an integrated design, the stability of the structure is improved; by arranging the first bending portion, the second bending portion, the third bending portion and the fourth bending portion on the contact section, when the user presses the switch, the downward or upward force of the moving terminal is more uniform, and the principle of the lever structure is adopted to achieve force separation; this design prevents the structure from being deformed after long-term use by the user, thereby enhancing the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the bimetallic strip, the moving terminal and the static terminal of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the main body and the fixing frame of the utility model.

[0016] Figure numerals: 1. base; 2. main body; 3. fixed bracket; 4. static terminal; 5. moving terminal; 51. wiring section; 52. bending section; 53. contact section; 54. first bending portion; 55. second bending portion; 56. third bending portion; 57. fourth bending portion; 58. moving terminal contact; 59. convex point; 6. snap structure; 61. fixing column; 62. limiting column; 63. first extension portion; 64. second extension portion; 65. clamping block; 66. clamping slot; 7. bimetallic strip; 71. first metal sheet; 72. second metal sheet; 73. bimetallic strip contact; 74. concave arc groove. DETAILED DESCRIPTION

[0017] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] Moreover, some of the above-mentioned terms may be used to express other meanings besides indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. A person skilled in the art may understand the specific meanings of these terms in the present utility model according to the specific circumstances.

[0020] In addition, the terms "install", "set", "provided with", "connect", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. The connection methods involved in this article are prior arts, without any improvement, and are all common knowledge of those skilled in the art. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0021] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0022] like Figures 1 to 3 As shown, the utility model provides

[0023] A movable terminal structure for a switch comprises a base 1, a main body 2 and a fixing bracket 3, wherein the main body 2 is fixedly mounted inside the base 1, and a static terminal 4 and a movable terminal 5 are respectively clamped at two end positions of the bottom inner wall of the base 1; the movable terminal 5 is an integrated structure consisting of a wiring segment 51, a bending segment 52 and a contact segment 53, wherein the wiring segment 51 is clamped on the bottom inner wall of the base 1, and the contact segment 53 is located above the wiring segment 51 and connected through the bending segment 52; the contact segment 53 comprises a first bending portion 54, a second bending portion 55, a third bending portion 56 and a fourth bending portion 57; the first bending portion 54 is bent upward in a curved surface, the second bending portion 55 is arranged parallel to the wiring terminal, the third bending portion 56 is bent downward in a curved surface, and the fourth bending portion 57 is arranged parallel to the second bending portion 55. The wiring section 51, the bending section 52 and the contact section 53 are designed to be integrally formed, thereby improving the stability of the structure; by providing the first bending portion, the second bending portion 55, the third bending portion 56 and the fourth bending portion 57 on the contact section 53, when the user presses the switch, the downward or upward force of the moving terminal 5 is more uniform, and the principle of the lever structure is adopted to achieve force separation; this design prevents the structure from being deformed after long-term use by the user, thereby enhancing the stability of the structure.

[0024] The fixing bracket 3 is arranged at the upper end of the main body 2 through a buckle structure 6; the buckle structure 6 includes a fixing column 61 arranged on both sides of the fixing bracket 3 and a limiting column 62 arranged on both sides of the main body 2; the fixing column 61 includes a first extension portion 63 and a second extension portion 64; the first extension portion 63 extends outward, and the second extension portion 64 extends downward; a block 65 is arranged at the bottom end of the second extension portion 64; a slot 66 is arranged on the limiting column 62 to cooperate with the block 65. The buckle structure 6 is provided for fixing; the block 65 is provided on the fixing column 61 and the slot 66 is provided on the limiting column 62, so that the block 65 can be matched and connected in the slot 66. Such a design makes the structure more stable and does not have the risk of falling off.

[0025] A bimetallic strip 7 is fixedly mounted on the top of the static terminal 4; the bimetallic strip 7 comprises a first metal strip 71 fixedly connected to the top of the static terminal 4, a second metal strip 72 fixedly connected to the middle of the first metal strip 71, a bimetallic strip contact 73 fixedly connected to the end of the second metal strip 72, and an inwardly concave arc groove 74 is provided at one end of the first metal strip 71. By providing the inwardly concave arc groove 74, the stress generated by one end of the first metal strip 71 can be removed when pressing down, thereby avoiding serious deformation on both sides of one end of the first metal strip 71;.

[0026] A movable terminal contact 58 is riveted to the bottom of the fourth bending portion 57; the movable terminal contact 58 is located directly above the bimetal contact 73; and a convex point 59 is fixedly installed on the top of the second bending portion 55. By providing the movable terminal contact 58, the movable terminal contact 58 can contact the bimetal contact 73 when the user presses. Specific embodiments

[0027] When the user presses the switch, the original state is that the first metal sheet 71 is flipped down and the second metal sheet 72 is flipped up, and the upper bimetallic contact 73 is connected to the moving terminal contact 58. When the current passes through the bimetallic strip 7 and the heat accumulates to a certain extent, the first metal sheet 71 flips up and the second metal sheet 72 flips down, and the bimetallic contact 73 on the second metal sheet 72 is instantly disconnected from the moving terminal contact 58. When the bimetallic strip 7 cools down for a period of time and then presses the button again, the two reset rods set on the fixed bracket 3 also move downward. Under the action of the reset rod and the concave arc groove 74, the two ends of the head of the second metal sheet 72 are pressed downward, so that the first metal sheet 71 flips down, driving the bimetallic contact 73 on the second metal sheet 72 to return to the original connected state and connect with the moving terminal contact 58.

[0028] The reset rod and the switch described in this specification are conventional well-known technical means and structures for those skilled in the art, so there is no need to give too much detailed description and illustration here.

[0029] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0030] The description of "example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0032] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scopes based on the ideas of the present invention. The content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A movable terminal structure for a switch, comprising a base, a main body and a fixing bracket, wherein the main body is fixedly installed inside the base, characterized in that: A static terminal and a moving terminal are respectively clamped at the two ends of the inner wall at the bottom of the base; the moving terminal is an integrated structure consisting of a wiring section, a bending section and a contact section, the wiring section is clamped on the inner wall at the bottom of the base, the contact section is located above the wiring section and is connected through the bending section; the contact section includes a first bending portion, a second bending portion, a third bending portion and a fourth bending portion; the first bending portion is bent upward in a curved surface, the second bending portion is arranged parallel to the wiring terminal, the third bending portion is bent downward in a curved surface, and the fourth bending portion is arranged parallel to the second bending portion.

2. A movable terminal structure for a switch according to claim 1, characterized in that: The fixing bracket is arranged at the upper end of the main body through a snap-fit ​​structure; the snap-fit ​​structure includes fixing columns arranged on both sides of the fixing bracket and limiting columns arranged on both sides of the main body; the fixing column includes a first extension portion and a second extension portion; the first extension portion extends outward, and the second extension portion extends downward; a clamping block is arranged at the bottom end of the second extension portion; and a clamping groove that cooperates with the clamping block is arranged on the limiting column.

3. A movable terminal structure for a switch according to claim 1, characterized in that: A bimetallic strip is fixedly installed on the top of the static terminal; the bimetallic strip includes a first metal strip fixedly connected to the top of the static terminal, a second metal strip is fixedly connected to the middle of the first metal strip, a bimetallic strip contact is fixedly connected to the end of the second metal strip, and an inwardly concave arc groove is opened at one end of the first metal strip.

4. A movable terminal structure for a switch according to claim 3, characterized in that: A moving terminal contact is riveted on the bottom of the fourth bending portion; the moving terminal contact is located directly above the bimetallic strip contact; and a convex point is fixedly installed on the top of the second bending portion.

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