Contact assembly in a contact switch

Abstract

The utility model provides a kind of contact assembly in contact switch. The contact assembly in the utility model is located at connecting hole, including touch plate, contact rod, spring and cover, the touch plate is long board, the connecting hole is matched with touch plate, the lower part of the touch plate has several positioning holes along its width direction, the contact rod is set one by one with positioning hole and the upper end of contact rod is embedded in corresponding positioning hole, the spring is set one by one with contact rod and the spring is sleeved on contact rod, both ends of spring are respectively pressed in touch plate and switch piece, the cover is fixedly connected at the upper end of touch plate. The contact assembly in the utility model has high stability.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and more specifically to contact components in contact switches. Background Technology

[0002] A contact switch is an electrical switch that controls the opening and closing of a circuit through physical contact. Its core principle is to use the movement of mechanical parts to make two or more conductive contacts come into contact (close) or separate (open), thereby realizing the conduction or interruption of current.

[0003] Existing contact switches typically consist of a single contact rod and a spring. This structure leads to excessive stress on the contact rod, which may cause it to break after prolonged use. Furthermore, the direct contact of the contact rod results in rigid contact that generates noise, affecting the user experience of the contact switch. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by providing a contact assembly in a contact switch that is compact and highly stable.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solutions: A contact assembly in a contact switch, the contact switch including a body in the shape of an elongated block, one end of the body having a recessed connecting hole, and a switch piece at the bottom of the connecting hole, characterized in that the contact assembly located at the connecting hole includes a contact plate, a contact rod, a spring and a cover, the contact plate being in the shape of an elongated plate, the connecting hole matching the contact plate, the lower part of the contact plate having a plurality of positioning holes along its width direction, the contact rod being provided one-to-one with the positioning holes and the upper end of the contact rod being embedded in the corresponding positioning hole, the spring being provided one-to-one with the contact rod and the spring being sleeved on the contact rod, the two ends of the spring pressing against the contact plate and the switch piece respectively, and the cover being fixedly connected to the upper end of the contact plate.

[0006] In the contact assembly of the aforementioned contact switch, the cover is made of a flexible material.

[0007] In the contact assembly of the aforementioned contact switch, the cover is made of rubber material.

[0008] In the contact assembly of the aforementioned contact switch, the depth of the positioning hole is greater than half the length of the contact rod.

[0009] In the contact assembly of the aforementioned contact switch, the upper end of the contact plate has a protruding connecting portion, the inside of the cover is a cavity and the lower end is open, and the cover is fastened to the connecting portion.

[0010] In the contact assembly of the aforementioned contact switch, the outer side of the contact plate protrudes beyond the outer side of the cover.

[0011] In the contact assembly of the aforementioned contact switch, the connection port has a smoothly transitioned inlet portion.

[0012] In the contact assembly of the aforementioned contact switch, the inlet portion is a chamfer at the connection hole port.

[0013] In the contact assembly of the aforementioned contact switch, the inlet portion is a rounded corner at the connection hole port.

[0014] In the contact assembly of the aforementioned contact switch, the cover is located at the lower part of the inlet under the elastic force of the spring.

[0015] Compared with existing technologies, in the contact assembly of this contact switch, the contact plate and contact rods are independent components. During the triggering process, the force on the contact plate can be transmitted to multiple contact rods, effectively distributing the load and thus ensuring its stability.

[0016] Meanwhile, the cover is made of flexible material, which not only eliminates noise generated during triggering, but also reduces the cost of replacing only the cover compared to replacing the entire contact plate. Therefore, the contact assembly of this contact switch has high stability and low operating cost.

[0017] In addition, the contact components are all placed inside the connection holes, so that the components are not exposed, and the structure is relatively compact, which has high practical value. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the contact assembly in this contact switch.

[0019] Figure 2 This is a cross-sectional view of the contact assembly in this contact switch.

[0020] Figure 3 yes Figure 2 A schematic diagram of the partial structure at part A in the middle.

[0021] Figure 4 This is a three-dimensional structural diagram of the connection between the contact plate and the contact rod in the contact assembly of this contact switch.

[0022] In the picture: 1. Body; 11. Connecting hole; 111. Inlet part; 2. Contact plate; 21. Positioning hole; 22. Connecting part; 3. Contact rod; 4. Spring; 5. Cover. Detailed Implementation

[0023] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0024] like Figure 1-4As shown, the contact switch includes a body 1 in the shape of an elongated block, one end of which has a recessed connection hole 11, and a switch piece at the bottom of the connection hole 11.

[0025] The contact assembly in this contact switch is located at the connection hole 11 and includes a contact plate 2, a contact rod 3, a spring 4, and a cover 5. The contact plate 2 is long and plate-shaped. The connection hole 11 matches the contact plate 2. The lower part of the contact plate 2 has several positioning holes 21 along its width direction. The contact rod 3 is arranged one-to-one with the positioning holes 21 and the upper end of the contact rod 3 is embedded in the corresponding positioning hole 21. The spring 4 is arranged one-to-one with the contact rod 3 and the spring 4 is sleeved on the contact rod 3. The two ends of the spring 4 press against the contact plate 2 and the switch plate, respectively. The cover 5 is fixed to the upper end of the contact plate 2.

[0026] The switch element in the contact switch is a readily available metal conductive spring, and since it is a commercially sourced component, its technical features will not be described in detail in this embodiment. Furthermore, how the switch element is triggered is also existing technology and will not be described further.

[0027] In the initial state, the contact plate 2 is pushed upward by the elastic force of the spring 4, at which time the cover 5 is located at the port of the connection hole 11.

[0028] When the insert or other triggering element enters the connection hole 11, the contact plate 2 drives the contact rod 3 to move down. After the contact rod 3 moves down, it presses the switch piece, thereby triggering the contact switch.

[0029] Conversely, when the insert or other triggering element exits the connection hole, the contact rod 3 and contact plate 2 move upward and return to their original positions under the elastic force of the spring 4. Under the weight of the contact rod 3 and contact plate 2 themselves, the switch piece cannot be triggered.

[0030] As can be seen, the contact plate 2 is used to make stable contact with triggering elements such as the insert, and the contact plate 2 then transmits the external force it bears to each contact rod 3. Therefore, even if the contact plate 2 is subjected to uneven force, the switch piece can still be pressed stably by the contact rod 3.

[0031] The cover 5 is made of a flexible material. In this embodiment, the cover 5 is made of rubber.

[0032] The depth of the positioning hole 11 is greater than half the length of the contact rod 3.

[0033] This structure ensures that the contact rod 3 is stably located inside the contact plate 2.

[0034] The upper end of the touch plate 2 has a protruding connecting part 22, the inside of the cover 5 is a cavity and the lower end is open, and the cover 5 is fastened to the connecting part 22.

[0035] The cover 5 can be stably fastened to the upper end of the touch plate 2 via the connecting part 22.

[0036] The outer side of the touch plate 2 protrudes from the outer side of the cover 5.

[0037] The connection hole 11 has a smoothly transitioned inlet portion 111 at its port.

[0038] The placement of the inlet section 111 allows the insert or other trigger element to be stably embedded in the connection hole 11.

[0039] In this embodiment, the guide portion 111 is a chamfer at the port of the connecting hole 11. Depending on the actual situation, it is also feasible to make the guide portion 111 a rounded corner at the port of the connecting hole 11.

[0040] Under the elastic force of spring 4, the cover 5 is located at the lower part of the inlet 111.

[0041] This structure allows the insert or other triggering element to stably rest against the cover.

[0042] In the contact assembly of this contact switch, the contact plate and contact rods are independent components. During triggering, the force on the contact plate can be transmitted to multiple contact rods, effectively distributing the load and ensuring its stability.

[0043] Meanwhile, the cover is made of flexible material, which not only eliminates noise generated during triggering, but also reduces the cost of replacing only the cover compared to replacing the entire contact plate. Therefore, the contact assembly of this contact switch has high stability and low operating cost.

[0044] In addition, the contact components are all placed inside the connection holes, so that the components are not exposed, and the structure is relatively compact, which has high practical value.

[0045] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0046] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A contact assembly in a contact switch, the contact switch comprising a body in the shape of an elongated block, one end of the body having a recessed connection hole, and a switch piece at the bottom of the connection hole, characterized in that, This contact assembly is located at the connection hole and includes a contact plate, a contact rod, a spring, and a cover. The contact plate is elongated, and the connection hole matches the contact plate. The lower part of the contact plate has several positioning holes along its width direction. The contact rod is arranged one-to-one with the positioning holes, and the upper end of the contact rod is embedded in the corresponding positioning hole. The spring is arranged one-to-one with the contact rod, and the spring is sleeved on the contact rod. The two ends of the spring press against the contact plate and the switch plate, respectively. The cover is fixed to the upper end of the contact plate.

2. The contact assembly in the contact switch according to claim 1, characterized in that, The cover is made of flexible material.

3. The contact assembly in the contact switch according to claim 2, characterized in that, The cover is made of rubber.

4. The contact assembly in the contact switch according to claim 3, characterized in that, The depth of the positioning hole is greater than half the length of the contact rod.

5. The contact assembly in the contact switch according to claim 4, characterized in that, The upper end of the touch plate has a protruding connecting part, the inside of the cover is a cavity and the lower end is open, and the cover is fastened to the connecting part.

6. The contact assembly in the contact switch according to claim 5, characterized in that, The outer side of the contact plate protrudes beyond the outer side of the cover.

7. The contact assembly in the contact switch according to claim 6, characterized in that, The connection port has a smoothly transitioned inlet.

8. The contact assembly in the contact switch according to claim 7, characterized in that, The inlet portion is a chamfer at the connection hole port.

9. The contact assembly in the contact switch according to claim 7, characterized in that, The inlet portion has rounded corners at the connection hole port.

10. The contact assembly in the contact switch according to claim 1, characterized in that, Under the elastic force of the spring, the cover is located at the lower part of the inlet.

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