Switch

Abstract

The utility model discloses a switch, which comprises a base, a static contact and a wiring frame, the wiring frame is provided with a screw and a wiring hole, the base is provided with an installation groove for placing the static contact, the back surface of the installation groove is provided with a threading hole, the installation groove is provided with a first through hole for screwing the screw, and the first through hole is provided with a second through hole for screwing the screw. And the static contact comprises a static contact part and a static wiring part extending into the wiring frame from the static contact part, the static wiring part is provided with a baffle plate, and the baffle plate is arranged on the wiring hole so as to prevent a lead from penetrating out of the wiring frame during wiring. According to the utility model, the static contact is placed in the mounting groove and can be used universally, and the baffle plate is arranged on the wiring hole of the wiring frame, so that the problems of short circuit and the like caused by the lead penetrating out of the wiring frame during wiring are prevented.

Description

Technical Field

[0001] This utility model relates to a switch. Background Technology

[0002] Chinese utility model patent CN206076184U discloses a protective switch, including a base 1 and an actuating mechanism and a contact assembly mounted on the base 1. The actuating mechanism includes a handle 4 and a pressure block 7. The contact assembly includes a moving contact plate 9 and a stationary contact plate 10. The handle 4 drives the pressure block 7 to press down the moving contact plate 9, causing the contacts of the moving contact plate 9 and the stationary contact plate 10 to close and connect the circuit. Figure 5 As shown, the stationary contact plate 10 is an L-shaped plate, including a fixed section 105 and a wiring section 106 that are perpendicular to each other. The inlet terminal 15 is located on the left and right sides of the moving contact plate 9. The two stationary contact plates in the above patent have an axisymmetric structure and are not interchangeable, which means that they must be distinguished as two parts during production, inventory, and assembly, thus increasing product costs. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a switch.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a switch, including a base, a stationary contact, and a wiring frame. The wiring frame is provided with screws and wiring holes. The base is provided with a mounting groove, and the stationary contact is disposed in the mounting groove. The back of the mounting groove is provided with a wire through hole, and the mounting groove is provided with a first through hole for screwing in screws. The stationary contact includes a stationary contact head and a stationary wiring portion extending from the stationary contact head into the wiring frame. The stationary wiring portion is provided with a baffle, and the baffle is disposed on the wiring hole.

[0005] The mounting groove is provided with a snap-fit ​​boss, and the stationary contact is snapped into the mounting groove through the snap-fit ​​boss.

[0006] The snap-fit ​​bosses are located on the upper and lower sides of the mounting groove.

[0007] The mounting slot has positioning slots on both the left and right sides, and the stationary contact head has a positioning plate corresponding to the positioning slot.

[0008] The baffle includes a first plate and a second plate.

[0009] The first plate and the second plate are connected by a first connecting plate, a second connecting plate, and a stationary connection part, respectively.

[0010] The first plate, the second plate, the first connecting plate, the second connecting plate, and the stationary connection part are integrally bent and formed, and a gap is formed between the first plate, the second plate, and the stationary connection part.

[0011] The static connection part has a first protrusion below the gap.

[0012] The screw head has a boss, and the mounting groove has a slot for inserting the boss.

[0013] The end of the static connection part is provided with protrusions on both sides, and the mounting groove is provided with grooves corresponding to the protrusions.

[0014] The beneficial effects of this utility model are as follows: The static contact is placed in the mounting groove, and the static contact can be universal. The baffle is set on the wiring hole of the wiring frame to prevent the wire from passing through the wiring frame during wiring, which may cause short circuits and other problems. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 This is a schematic diagram of the static contact structure of this utility model;

[0017] Figure 3 This is a left view of the static contact element of this utility model;

[0018] Figure 4 This is a schematic diagram of the static contact and wiring frame structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the base structure of this utility model;

[0020] Figure 6 for Figure 5 A magnified view of a portion of the image;

[0021] Figure 7 for Figure 1 A cross-sectional view along the AA direction. Detailed Implementation

[0022] like Figures 1-5 As shown, a switch includes a base 1, a stationary contact 2, and a wiring frame 3. The wiring frame 3 is provided with a screw 4 and a wiring hole 31. The base 1 is provided with a mounting groove 5. The stationary contact 2 is disposed in the mounting groove 5. The back of the mounting groove 5 is provided with a wire through hole 51. The mounting groove 5 is provided with a first through hole 52 for screwing in the screw 4. The stationary contact 2 includes a stationary contact head 21 and a stationary wiring portion 22 extending from the stationary contact head 21 into the wiring frame 3. The stationary wiring portion 22 is provided with a baffle 23, and the baffle 23 is disposed on the wiring hole 31 to prevent the wire from passing through the wiring frame 3 when wiring.

[0023] The mounting groove 5 has a snap-fit ​​boss 53 at its opening, and the stationary contact 2 is snapped into the mounting groove 5 via the snap-fit ​​boss 53. During installation, the stationary contact 2, the wiring frame 3, and the screw 4 are pressed together into the mounting groove 5, so that the snap-fit ​​boss 53 presses onto the stationary contact 2, and the installation is completed without the need for screws or other tools.

[0024] The snap-fit ​​protrusion 53 is located on the upper and lower sides of the mounting groove 5. The mounting groove 5 has positioning grooves 54 on the left and right sides, and the stationary contact head 21 has positioning plates 24 corresponding to the positioning grooves 54.

[0025] The baffle 23 includes a first plate 25 and a second plate 26. The first plate 25 and the second plate 26 are connected to the stationary wire portion 22 via a first connecting plate 27 and a second connecting plate 28, respectively. The first plate 25, the second plate 26, the first connecting plate 27, the second connecting plate 28, and the stationary wire portion 22 are integrally bent into shape, a mature and low-cost process. A gap 6 is formed between the first plate 25, the second plate 26, and the stationary wire portion 22. The stationary wire portion 22 has a first protrusion 29 below the gap 6 to prevent the wire from passing through the gap 6.

[0026] The screw 4 has a boss 41 on its head, and the mounting groove 5 has a slot 55 for inserting the boss 41. The head of the screw 4 is locked in the slot 55, so that the screw 4 can only rotate and will not move axially, thus preventing the screw 4 from falling out of the first through hole 52.

[0027] The stationary wiring portion 22 has protrusions 221 on both sides of its end, and the mounting groove 5 has grooves 56 corresponding to the protrusions 221. Because the end of the stationary wiring portion 22 has protrusions 221, the width of the end of the stationary wiring portion 22 is greater than the width of the inner wall of the wiring frame 3. When connecting the wiring frame 3 and the stationary contact 2, the stationary wiring portion 22 of the stationary contact 2 needs to be rotated to an angle approximately equal to the diagonal of the wiring hole 31. After the end of the stationary wiring portion 22 passes through the wiring frame 3, the stationary contact 2 is then rotated to the correct position. Figure 7 As shown, when the stationary contact 2 is installed in the mounting groove 5, the protrusion 221 is inserted into the groove 56, and the end of the stationary wire portion 22 is fixed and limited. In existing products on the market, the stationary wire portion is prone to downward displacement. By adopting the above-mentioned limiting structure, the end of the stationary wire portion 22 is reliably limited within the groove 56. This prevents the stationary wire portion 22 from shifting due to excessive torque from the electrician using an electric screwdriver, and also prevents the stationary wire portion 22 from shifting due to violent pulling during wire removal.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A switch comprising a base, a stationary contact, a terminal block, the terminal block being provided with a screw and a terminal hole, characterized in that, The base is provided with a mounting groove, and the stationary contact is set in the mounting groove. The back of the mounting groove is provided with a wire hole, and the mounting groove is provided with a first through hole for screwing in screws. The stationary contact includes a stationary contact head and a stationary wire portion extending from the stationary contact head into the wiring frame. The stationary wire portion is provided with a baffle, and the baffle is set on the wiring hole.

2. A switch as claimed in claim 1, characterised in that The mounting groove is provided with a snap-fit ​​boss, and the stationary contact is snapped into the mounting groove through the snap-fit ​​boss.

3. A switch as claimed in claim 2, wherein The snap-fit ​​bosses are located on the upper and lower sides of the mounting groove.

4. A switch as claimed in claim 3, characterised in that The mounting slot has positioning slots on both the left and right sides, and the stationary contact head has a positioning plate corresponding to the positioning slot.

5. A switch as claimed in claim 1, wherein the switch is a microswitch. The baffle includes a first plate and a second plate.

6. A switch as claimed in claim 5, characterised in that The first plate and the second plate are connected by a first connecting plate, a second connecting plate, and a stationary connection part, respectively.

7. A switch as claimed in claim 5, wherein the switch is a microswitch. The first plate, the second plate, the first connecting plate, the second connecting plate, and the stationary connection part are integrally bent and formed, and a gap is formed between the first plate, the second plate, and the stationary connection part.

8. A switch as claimed in claim 7, characterised in that The static connection part has a first protrusion below the gap.

9. A switch as claimed in claim 1, wherein The screw head has a boss, and the mounting groove has a slot for inserting the boss.

10. A switch as claimed in claim 1, characterised in that The end of the static connection part is provided with protrusions on both sides, and the mounting groove is provided with grooves corresponding to the protrusions.

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