A Disc-shaped Shrapnel Automatic Pressure Switch
A disc-shaped shrapnel, pressure switch technology, applied in electrical switches, snap-action devices, electrical components, etc., can solve problems such as the inability to meet the requirements of pressure regulation and pressure difference, the small disconnection distance of the contact point, and the poor contact.
Active Publication Date: 2018-09-25
王刚
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Problems solved by technology
Its shortcoming is: when producing disc-shaped shrapnel, its thickness and the height of the convex surface determine the size of the pressure and pressure difference. After the product is finalized, it cannot be adjusted again. The contact points are prone to sparks, poor contact, and the disconnection distance is not enough, which cannot meet the requirements for adjusting pressure and pressure difference in large and medium-sized pressure switches. Tens of thousands of times, affecting switch stability and service life
Due to the need to adjust the pressure difference, the existing large and medium-sized switches have a service life of 200,000 times, so multiple sets of springs and metal parts are required to cooperate, which is very heavy and expensive to manufacture
Method used
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[0011] The present invention is described in detail in conjunction with accompanying drawing now.
[0012] Such as figure 1 , image 3 Shown, a disc shrapnel automatic pressure switch.
[0013] Including: connecting body 1, sealing piece 2, pressure plate 3, disc shrapnel spring lower seat 4, disc shrapnel spring 6, disc shrapnel spring upper seat 7, upper seat cover 8, disc shrapnel 9, thimble 10, pressure spring 5 , differential pressure spring 29, pressure bolt 12, differential pressure bolt 30, lug 13, lug frame 17, switch case 14, switch pressure plate 16, switch button 15, single arm 18, copper shrapnel 11, silver point 20, exhaust Depression bar 21, pressure bar spring 22, line clamp 23, line clamp nut 24, switch base 25, exhaust valve 27, exhaust needle 26, differential pressure thimble 28, single arm pin 19.
[0014] The switch base 25 is fixed to the connecting body 1, the pressing plate 3 and the sealing sheet 2 are fixed in the connecting body 1, the lower seat ...
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The automatic pressure switch comprises a connection body, a dish-shaped spring sheet, a switch pedestal, a wiring frame, a dish-shaped spring sheet spring, a dish-shaped spring sheet spring lower base, a pressure spring and a differential pressure spring. The automatic pressure switch is characterized in that the dish-shaped spring sheet is arranged on the upper end face of the dish-shaped spring sheet spring and the protruding section of the dish-shaped spring sheet is downward and arranged on the upper end face of the dish-shaped spring sheet spring. The dish-shaped spring sheet spring lower base is arranged at the lower part of the dish-shaped spring sheet spring. The pressure spring is arranged in the switch pedestal, one end is placed above the dish-shaped spring sheet spring lower base and the other end is a pressure adjusting nut. The differential pressure spring is arranged in the wiring frame. The upper part is a differential pressure adjusting nut, and the lower part is pressed on a differential pressure ejector pin. The lower part of the differential pressure ejector pin is located above the recessed surface of the dish-shaped spring sheet and does not contact the recessed surface. During usage, by utilization of cooperation usage of the dish-shaped spring sheet spring, the automatic pressure switch can meet usage requirements of various automatic pressure switches medium and small sizes, and the manufacturing cost is low.
Description
technical field [0001] The invention relates to a pressure switch, in particular to an automatic pressure switch of disc-shaped shrapnel. Background technique [0002] The existing automatic pressure switch with dish-shaped shrapnel relies on pressure to push the dish-shaped shrapnel. When the dish-shaped shrapnel is under a certain pressure, the convex surface is concave and deformed to push the thimble, and the thimble pushes away the shrapnel to disconnect the contact point, and the switch is turned off; the pressure disappears or When it is reduced to a certain value, the protruding surface of the dish-shaped shrapnel returns to its position, and the shrapnel pushes the thimble back to restore, thereby driving the contact point to return, and the switch is closed. Its shortcoming is: when producing disc-shaped shrapnel, its thickness and the height of the convex surface determine the size of the pressure and pressure difference. After the product is finalized, it cannot ...
Claims
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IPC IPC(8): H01H35/26H01H5/18
Inventor 王刚
Owner 王刚