CN204390986U - Switch protection device - Google Patents
Switch protection device Download PDFInfo
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- CN204390986U CN204390986U CN201520117518.3U CN201520117518U CN204390986U CN 204390986 U CN204390986 U CN 204390986U CN 201520117518 U CN201520117518 U CN 201520117518U CN 204390986 U CN204390986 U CN 204390986U
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- 239000002184 metal Substances 0.000 claims abstract description 214
- 230000001012 protector Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 206010029897 Obsessive thoughts Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
A switch protection device comprises a switch outer shell, a switch, an elastic conducting strip, a thermal actuating metal sheet, at least one thermal actuating metal sheet contact and a conducting strip contact locator; an elastic conducting strip and a thermal motion metal sheet are arranged in the switch shell, conducting strip contacts and thermal motion metal sheet contacts are respectively arranged on the elastic conducting strip and the thermal motion metal sheet, when the switch is switched on or switched off, the conducting strip contacts are respectively contacted with or separated from the thermal motion metal sheet contacts, when the thermal motion metal sheet is bent in an overload mode, the thermal motion metal sheet contacts flick the conducting strip contacts to disconnect the power supply, the switch is switched on or switched off, the switch elastic positioning shaft is in telescopic linkage to reset the hook sheet so as to pull up or press down the thermal motion metal sheet contacts, and the reset contact conducting strip contacts are conducted to output the power supply; the thermal metal sheet contact and the conducting sheet contact can be exchanged at the upper and lower parts of the positioning point. The thermal motion sheetmetal can not be because of the compulsive pulling-up or press down and influence bending deformation and current accuracy, the utility model discloses can prolong the thermal motion sheetmetal life-span, make the contact well contact, guarantee that the current is accurate.
Description
Technical Field
The utility model relates to an electromechanical device technical field especially relates to a switch protection device.
Background
At present, the thermal metal sheet of the overload switch is applied as a switch, and generally, the overload switch is opened by a key switch forced by the thermal metal sheet, and the thermal metal sheet is pulled up to separate from a contact, and when the overload switch is opened or closed, the thermal metal sheet contact is forced to move at the same point by pulling up and pressing down, so that the thermal metal sheet is bent and deformed, and the accuracy of current is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a switch protection device, its thermal metal piece can not be because of the obsession is pulled up or is pressed the bending deformation influence life-span, and its life that can prolong thermal metal piece makes the contact well contact to it is accurate to guarantee the electric current.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides a switch protection device, it contains: a switch outer housing; the switch is positioned in the switch shell and comprises an opening end and a closing end, a switch axis is arranged on the switch, the opening end and the closing end can rotate around the switch axis, a resetting piece axis is arranged on the switch, and a resetting hook piece is connected to the resetting piece axis; the elastic conducting plate is positioned in the switch shell, one end of the elastic conducting plate is provided with a conducting plate contact, and the other end of the elastic conducting plate is combined with the power input plate; a thermal actuating metal sheet located in the switch outer case, one end of the thermal actuating metal sheet being provided with a thermal actuating metal sheet contact, the thermal actuating metal sheet contact being disposed opposite to the conductive sheet contact, the other end of the thermal actuating metal sheet being combined with a thermal actuating metal sheet power input sheet; at least one thermal actuated metal sheet contact and conductive sheet contact locator connected within the switch housing, the thermal actuated metal sheet contact and conductive sheet contact locator sandwiched between the elastic conductive sheet and the thermal actuated metal sheet; the conductive sheet contact is in contact with the thermal actuation metal sheet contact in a state where the open end of the switch is pressed; the conductive sheet contact is separated from the thermal actuated metal sheet contact in a state where the closing end of the switch is pressed.
In a preferred embodiment, the thermal actuated metal sheet contact and conductive sheet contact locator is provided with a notch through which the resilient conductive sheet or the thermal actuated metal sheet is positioned on the thermal actuated metal sheet contact and conductive sheet contact locator.
In a preferred embodiment, two reset sheet positioning blocks are arranged in the switch outer shell, and the reset hook sheet is positioned between the two reset sheet positioning blocks.
In a preferred embodiment, a positioning shaft switch toggle frame is set at the switch axis, a spring is set in the positioning shaft switch toggle frame, a switch elastic positioning shaft is set in the spring, the elastic conductive sheet is located above the thermal actuating metal sheet, the switch elastic positioning shaft abuts against the upper surface of the elastic conductive sheet, the lower surface of the elastic conductive sheet abuts against a bump, the bump is connected in the switch shell, the switch elastic positioning shaft moves from the upper surface of the elastic conductive sheet on one side of the bump to the upper surface of the elastic conductive sheet on the other side of the bump in a state that the switch is switched from the closing end to the opening end, and a conductive sheet contact point of the elastic conductive sheet contacts with the thermal actuating metal sheet contact point.
In a preferred embodiment, a reset plate is attached to the reset hook plate and is positioned below the thermal plate contact.
In a preferred embodiment, one end of a thermal metal sheet contact of the thermal metal sheet is sleeved on the reset hook sheet, one end of the thermal metal sheet contact of the thermal metal sheet is connected with a reset positioning elastic sheet, and the reset positioning elastic sheet abuts against the switch shell.
In a preferred embodiment, a positioning shaft switch toggle frame is arranged at the switch axis, a spring is arranged in the positioning shaft switch toggle frame, a switch elastic positioning shaft is arranged in the spring, a switch positioning block is arranged in the switch outer shell, a switch opening end positioning groove and a switch closing end positioning groove are arranged on the switch positioning block, the elastic conducting strip is positioned below the heat-actuated metal sheet, the resetting hook sheet is connected with the elastic conducting strip, the switch elastic positioning shaft is positioned in the switch opening end positioning groove in the state that the switch opening end is pressed, and a conducting strip contact of the elastic conducting strip is contacted with a contact point of the heat-actuated metal sheet; when the switch closing end is pressed, the switch elastic positioning shaft is positioned in the switch closing end positioning groove, and the conducting strip contact of the elastic conducting strip is separated from the thermal actuating metal strip contact.
In a preferred embodiment, the switch is provided with a return cam located above the thermal blade contact.
In a preferred embodiment, the return hook tab comprises a return tab and a return tab, the return tab being positioned above the heat actuated metal tab contact, the conductive tab contact being connected to the return tab.
In a preferred embodiment, the elastic conductive sheet is located above the heat actuated metal sheet, a positioning spring is connected between the switch axis and the upper surface of the elastic conductive sheet, a bump is abutted on the lower surface of the elastic conductive sheet, the bump is connected in the switch outer shell, and the conductive sheet contact of the elastic conductive sheet is in contact with the heat actuated metal sheet contact in a state that the switch is switched from the closing end to the opening end.
The utility model relates to a switch protection device, which comprises a switch shell, a thermal motion metal sheet contact, an elastic conducting strip, a conducting strip contact, a switch (a key switch or a rocker switch) and a resetting hook sheet; the switch protection device is characterized in that a conductive sheet contact and a thermal motion sheet metal contact are arranged in a switch shell of the switch protection device, the thermal motion sheet metal contact is bent in an overload mode to enable the thermal motion sheet metal contact to bounce off the conductive sheet contact so as to disconnect a power supply, and a switch is used for switching on or off, an elastic positioning shaft of the switch is telescopically linked with a resetting hook sheet so as to pull up or press down the thermal motion sheet metal contact, so that the resetting thermal motion sheet metal contact is contacted with the conductive sheet contact so as to conduct an output power supply, and the thermal motion sheet metal contact and the thermal motion; the thermal motion metal sheet contact and the conducting strip contact can be exchanged to be arranged above or below the positioning point; the switch is opened, the conducting strip contact contacts the thermal motion sheet metal contact, the switch is closed, the conducting strip contact is separated from the contact of the thermal motion sheet metal contact, the switch is opened or closed, and the thermal motion sheet metal contact is located at a locating point; the thermal motion metal sheet is bent in an overload mode to enable the thermal motion metal sheet contact to bounce off the conductive sheet contact to disconnect a power supply, the thermal motion metal sheet contact is reset, the switch is turned on or off, the thermal motion metal sheet contact is pulled up or pressed down in a linkage mode to contact the conductive sheet contact to conduct an output power supply, the reset hook sheet is provided with a reset pressing sheet and a reset pulling sheet, the reset pressing sheet and the reset pulling sheet are integrated into a whole, the reset pressing sheet and the reset pulling sheet or the reset salient points can be separated from each other independently, and therefore the service life of the thermal motion metal sheet contact can be prolonged, and current is accurate; the thermal driving metal sheet contact and the conducting sheet contact are positioned or the two are positioned by any pressure, one end of the elastic conducting sheet can be positioned or the front end and the rear end of the elastic conducting sheet can be positioned, and the grooves can be arranged above the thermal driving metal sheet contact and the conducting sheet contact positioner to be flatly attached and positioned, so that good contact can be kept; the utility model discloses establish switch elastic positioning axle, the switch is opened or is closed, this switch elastic positioning axle flexible interlock resetting hook piece, and control conducting strip contact breaks away from or contacts the thermal motion sheetmetal contact, and the bump is established to the elastic conduction piece below, and the switch is closed, and the elastic conduction piece receives below bump jack-up to break away from the thermal motion sheetmetal contact. The utility model relates to a switch protection device can prolong the life-span of hot sheetmetal, makes the contact well contact, guarantees that the electric current is accurate.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
fig. 1 is a schematic diagram of a switch protection device according to the present invention with the conductive sheet contact disengaged from the thermally actuated blade contact in the closed end position.
Fig. 1-a is a schematic view of a switch protection device of the present invention in an open end position with a conductive plate contact contacting a thermally actuated blade contact.
Fig. 1-B is a schematic view of a thermal actuated blade contact being disengaged from a conductive strip contact by excessive bending of the thermal actuated blade in an open end position of a switch protection device according to the present invention.
Fig. 1-C is a schematic view of a switch protector of the present invention in an open end position with a conductive plate contact contacting a thermally actuated blade contact.
Fig. 1-D is a schematic view of a thermal actuated blade contact disengaged from a conductive blade contact in an open end position of a switch protection device of the present invention.
Fig. 1-E are schematic views of a switch protection device according to the present invention with the conductive plate contacts disengaged from the thermally actuated blade contacts in the closed end position.
Fig. 2 is a schematic view showing the thermal actuating metal plate contact being separated from the conductive plate contact by the thermal actuating metal plate being bent in an overload state at an open end position of a switch of the switching protection device according to the present invention.
Fig. 3 is a schematic diagram of a switch protection device according to the present invention with the conductive sheet contact disengaged from the thermally actuated blade contact in the closed end position.
Fig. 3-a is a schematic view of a switch protection device of the present invention in an open end position with a conductive plate contact contacting a thermally actuated blade contact.
Fig. 3-B is a schematic view of a thermal actuated blade contact being disengaged from a conductive strip contact by excessive bending of the thermal actuated blade in an open end position of a switch protection device according to the present invention.
Fig. 3-C is a schematic view of a thermal actuated blade contact being deflected away from a conductive strip contact by an overload bend of a thermal actuated blade in an open end position of a switch protector according to the present invention.
Fig. 3-D is a schematic diagram of a switch protection device according to the present invention with the conductive plate contacts disengaged from the thermally actuated blade contacts in the closed end position.
The reference numbers illustrate:
101 switch outer shell 102 switch (push-button switch or rocker switch)
103 switch axle center 104 spring
105 spring positioning ring 106 positioning shaft switch stirring frame
107 switch elastic positioning shaft 108 elastic conducting strip (or conducting strip)
109 conductive sheet and power input sheet combined point 110 convex point
110 'bump 110' bump
111 power input sheet 112 heat actuated metal sheet and power output sheet joint point
113 heat actuated metal sheet power output sheet 114 heat actuated metal sheet reset salient point
115 heat actuated metal sheet
116 thermal actuated metal sheet contact and conductive sheet contact locator
117 thermal actuated metal sheet contact 118 conductive sheet contact (or elastic conductive sheet contact)
119 resetting hook piece 120 resetting piece axle center
121 reset positioning spring piece 122 reset piece
122' hook piece
123 open end of contact point 125 of conducting strip and power input strip
126 closing end 127 resetting piece positioning block
128 switch opening end positioning groove 129 switch closing end positioning groove
130 resetting press sheet with convex rod 131
132 groove 133 positioning spring
Switch positioning block of 134 resetting pull tab 135
Detailed Description
In order to clearly understand the technical solution, purpose and effect of the present invention, the detailed embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 3-C, the present invention provides a switch protection device, which includes: switch shell 101, switch 102, elastic conductive sheet 108, thermal actuating metal sheet 115, at least one thermal actuating metal sheet contact and conductive sheet contact locator 116; the switch 102 is located in the switch outer casing 101, the switch 102 includes an opening end 125 and a closing end 126, the switch 102 is provided with a switch axis 103, the opening end 125 and the closing end 126 can be rotatably disposed around the switch axis 103, the switch 102 is provided with a reset sheet axis 120, and the reset sheet axis 120 is connected with a reset hook sheet 119; the elastic conducting strip 108 is located in the switch outer casing 101, one end of the elastic conducting strip 108 is provided with a conducting strip contact 118, and the other end of the elastic conducting strip 108 is combined with the power input strip 111; the thermal actuating metal sheet 115 is positioned in the switch outer case 101, one end of the thermal actuating metal sheet 115 is provided with a thermal actuating metal sheet contact 117, the thermal actuating metal sheet contact 117 is arranged opposite to the conductive sheet contact 118, and the other end of the thermal actuating metal sheet 115 is combined with the thermal actuating metal sheet power output sheet 113; at least one thermal actuated sheet metal contact and conductive sheet contact locator 116 connected within the switch housing 101, the thermal actuated sheet metal contact and conductive sheet contact locator 116 sandwiched between the resilient conductive sheet 108 and the thermal actuated sheet metal 115; in a state where the open end 125 of the switch 102 is pressed, the conductive sheet contact 118 is in contact with the thermal plate contact 117; in the state where the closing terminal 126 of the switch 102 is pressed, the conductive sheet contact 118 is separated from the thermal plate contact 117.
Specifically, as shown in fig. 1 and 1-a, the switch 102 may be a push-button switch or a rocker switch. The heat actuated metal plate 115 is a double alloy plate which generates heat when current flows and is bent to one side when overloaded, that is, when the double alloy plate is heated beyond a predetermined range, because of its different expansion coefficient. The thermal actuated metal sheet contact and conductive sheet contact locator 116 is provided with a groove 132, the elastic conductive sheet 108 or the thermal actuated metal sheet 115 can be flatly positioned on the thermal actuated metal sheet contact and conductive sheet contact locator 116 through the groove 132, preferably, two thermal actuated metal sheet contacts and conductive sheet contact locators 116 are provided, which are respectively positioned at the front end and the rear end of the conductive sheet contact 118 or the thermal actuated metal sheet contact 117, and two grooves 132 are respectively correspondingly provided above the two thermal actuated metal sheet contacts and the conductive sheet contact locator 116, so that the elastic conductive sheet 108 or the thermal actuated metal sheet 115 can be positioned at one end or at the front end and the rear end, thus keeping the contacts in good contact; in other embodiments, the notch 132 may be eliminated, and only one of the thermal actuated metal plate 115 and the elastic conductive sheet 108 may be positioned against the thermal actuated metal plate contact and the conductive sheet contact locator 116, or one of the two may be positioned at a pressure level, for example, when the pressure of the conductive sheet contact 118 is greater than the pressure of the thermal actuated metal plate contact 117, the elastic conductive sheet 108 may be positioned against the thermal actuated metal plate contact and the conductive sheet contact locator 116; thermal moving metal sheet resetting bumps 114 are arranged below the thermal moving metal sheet contact and conducting sheet contact locator 116, and the thermal moving metal sheet resetting bumps 114 are locating points for the thermal moving metal sheet 115 to be bent and bounced to open the conducting sheet contacts 118 in an overload mode and the thermal moving metal sheet 115 to be rebounded in a resetting mode. Two return piece positioning blocks 127 are arranged in the switch outer shell 101, and the return hook piece 119 is positioned between the two return piece positioning blocks 127, so that the return hook piece 119 does not deviate when moving up and down along with the switch 102.
In a preferred embodiment, as shown in fig. 1, 1-a, 1-B and 2, a positioning shaft switch dialing frame 106 is set at the switch axis 103, a spring 104 is set in the positioning shaft switch dialing frame 106, a switch elastic positioning shaft 107 is set in the spring 104, the switch elastic positioning shaft 107 is provided with a spring positioning ring 105, an elastic conductive sheet 108 is positioned above a thermal dynamic metal sheet 115, the switch elastic positioning shaft 107 abuts against the upper surface of the elastic conductive sheet 108, the lower surface of the elastic conductive sheet 108 abuts against a salient point 110, the salient point 110 is connected in the switch outer shell 101, the salient point 110 is used for the rocker positioning between the elastic conductive sheet 108 and the switch elastic positioning shaft 107, the elastic conductive sheet 108 and the power input sheet 111 are combined at a conductive sheet and power input sheet combining point 109, the thermal dynamic metal sheet 115 and the thermal dynamic metal sheet power output sheet 113 are combined at a thermal dynamic metal and power output sheet combining point 112, a reset sheet axis 120 is disposed on the closing end 126 of the switch 102, a reset hook 119 is connected to the reset sheet axis 120, and when the switch 102 is switched from the closing end 126 to the opening end 125, the switch elastic positioning shaft 107 moves from the upper surface of the elastic conductive sheet 108 on one side of the bump 110 to the upper surface of the elastic conductive sheet 108 on the other side of the bump 110, so that the elastic conductive sheet 108 is pressed down by the switch elastic positioning shaft 107 with the bump 110 as a tilting point, and the conductive sheet contact 118 of the elastic conductive sheet 108 is in contact with the thermal actuating metal sheet contact 117.
Further, as shown in fig. 1, 1-a and 1-B, the reset hook plate 119 is connected with a reset plate 122, and the reset plate 122 is located below the thermal actuating metal plate contact 117. After the thermal motion metal sheet 115 is bent due to overload, the thermal motion metal sheet 115 is bent to abut against the reset sheet 122 of the reset hook sheet 119, and when the thermal motion metal sheet 115 needs to be reset, the reset hook sheet 119 is linked through the switch 102, so that the reset sheet 122 pulls up the thermal motion metal sheet 115.
In operation of the preferred embodiment shown in fig. 1, 1-a and 1-B, when the closing end 126 of the switch 102 is pressed, the spring positioning ring 105 makes the switch elastic positioning shaft 107 telescopically locate on the upper surface of the elastic conductive sheet 108 at the side of the salient point 110 far from the closing end 126, at this time, the elastic conductive sheet 108 tilts up, the returning hook 119 is moved down by the closing end 126 of the switch 102, and a distance exists between the thermal actuating metal sheet 115 and the returning sheet 122; in a state that the opening end 125 of the switch 102 is pressed, the spring positioning ring 105 enables the switch elastic positioning shaft 107 to telescopically move to the upper surface of the elastic conducting strip 108 far away from the opening end 125 by taking the salient point 110 as a warped point, at the moment, the elastic conducting strip 108 is pressed down to be flatly attached to the heat actuated metal sheet contact and conducting strip contact positioner 116 for positioning, or the elastic conducting strip 108 is pressed down to be positioned in the groove 132 to be flatly attached to the heat actuated metal sheet contact and conducting strip contact positioner 116, the conducting strip contact 118 is contacted with the heat actuated metal sheet contact 117 for conducting power supply, at the moment, the resetting hook sheet 119 is moved upwards by the linkage of the closing end 126 of the switch 102, and a distance still exists between the resetting hook sheet 119 and the heat actuated metal sheet 115; when the thermal actuating metal sheet 115 is bent in an overload manner, the thermal actuating metal sheet contact 117 is separated from the conductive sheet contact 118 along with the bending of the thermal actuating metal sheet 115, at this time, the switch 102 is still in an open state at the open end 125, and if the thermal actuating metal sheet is required to work again, the open end 125 needs to be pressed down continuously, so that the switch 102 is connected with the reset hook sheet 119, and the reset sheet 122 connected with the reset hook sheet 119 pulls up the thermal actuating metal sheet 115 along the thermal actuating metal sheet reset bump 114.
Further, as shown in fig. 2, unlike the previous embodiment, in this embodiment, the reset sheet 122 is not connected to the bottom of the reset hook sheet 119, but the hook sheet 122 'is disposed at the bottom of the reset hook sheet 119, in this embodiment, one end of the thermal metal sheet contact 117 of the thermal metal sheet 115 is sleeved on the reset hook sheet 119, a gap (gap) is formed between the thermal metal sheet contact 117 and the hook sheet 122' where the thermal metal sheet 115 is overloaded to pop open the conductive sheet contact 118, after the thermal metal sheet 115 is overloaded to pop open, the switch 102 is not interlocked, the switch 102 is still in the open end 125 state, and before and after the thermal metal sheet 115 is overloaded to pop open, the switch 102 is in the open end 125 position. One end of a thermal motion metal sheet contact 117 of the thermal motion metal sheet 115 is connected with a resetting positioning elastic sheet 121, the resetting positioning elastic sheet 121 is propped against the inside of the switch shell 101, and the pressure of the resetting positioning elastic sheet 121 enables the thermal motion metal sheet 115 to be flatly attached to the thermal motion metal sheet contact and the conducting sheet contact positioner 116 for positioning.
In operation of the preferred embodiment shown in fig. 2, when the closing end 126 of the switch 102 is pressed, the spring positioning ring 105 makes the switch elastic positioning shaft 107 stretch and retract on the upper surface of the elastic conductive sheet 108 on the side of the bump 110 away from the closing end 126, at this time, the elastic conductive sheet 108 tilts up, the returning hook sheet 119 is moved downward by the closing end 126 of the switch 102, and the thermal actuating metal sheet 115 is flatly attached to the thermal actuating metal sheet contact and the conductive sheet contact positioner 116 under the action of the returning positioning elastic sheet 121; in the state that the opening end 125 of the switch 102 is pressed, the spring positioning ring 105 makes the switch elastic positioning shaft 107 telescopically move to the upper surface of the elastic conducting strip 108 far away from the opening end 125 by taking the salient point 110 as a tilting point, at the moment, the elastic conducting strip 108 is pressed down to be flatly attached to the heat actuated metal sheet contact and conducting strip contact positioner 116 for positioning, the resetting hook piece 119 is interlocked and moved upwards by the closing end 126 of the switch 102, the conducting strip contact 118 is contacted with the heat actuated metal sheet contact 117, and at the moment, a gap is formed between the heat actuated metal sheet 115 and the hook piece 122'; when the thermal motion metal sheet 115 is bent in an overload manner, the elastic force of the resetting positioning elastic sheet 121 is smaller than the bending tension of the thermal motion metal sheet 115, at this time, the resetting positioning elastic sheet 121 moves downwards under the bending tension of the thermal motion metal sheet 115, the thermal motion metal sheet 115 abuts against the hook sheet 122', the switch 102 is not linked when the thermal motion metal sheet 115 is bounced off in the overload manner, if the thermal motion metal sheet 115 needs to work again, the opening end 125 needs to be pressed downwards continuously, the resetting hook sheet 119 moves upwards under the action of the switch 102, the thermal motion metal sheet 115 moves upwards to the thermal motion metal sheet contact point and the conductive sheet contact point positioner 116 under the driving of the resetting hook sheet 119 to be positioned, the elastic conductive sheet 108 is pressed down, and the conductive sheet contact point 118 is in contact with the thermal motion metal sheet contact point 117.
Further, as shown in fig. 3, 3-a and 3-B, the elastic conductive sheet 108 is located above the thermal actuating metal sheet 115, the switch elastic positioning shaft 107 abuts against the upper surface of the elastic conductive sheet 108, an end of the elastic conductive sheet 108 away from the conductive sheet contact 118 is arc-shaped, the lower surface of the elastic conductive sheet 108 abuts against the bump 110 ", and the bump 110" is different from the bump 110 in that the bump 110 is an arc surface facing the elastic conductive sheet 108, so that the bump functions as a rocker fulcrum, the bump 110 "is an arc surface facing downward, and the arc surface of the bump 110" contacts with the power input sheet 111 at the conductive sheet and power input sheet contact point 123, so that the bump 110 "can swing left and right with the power input sheet 111 as a fulcrum along with the switch elastic positioning shaft 107 acting on the elastic conductive sheet 108.
In a preferred embodiment, as shown in fig. 1-C, 1-D, and 1-E, a switch shaft center 103 is provided with a positioning shaft switch dialing frame 106, a spring 104 is provided in the positioning shaft switch dialing frame 106, a switch elastic positioning shaft 107 is provided in the spring 104, the switch elastic positioning shaft 107 is provided with a spring positioning ring 105, a switch positioning block 135 is provided in the switch outer casing 101, the switch positioning block 135 is provided with a switch opening end positioning groove 128 and a switch closing end positioning groove 129, an elastic conductive sheet 108 is located below the thermal conductive sheet 115, a bump 110' is provided between the elastic conductive sheet 108 and the thermal conductive sheet contact point positioner 116, a reset sheet shaft center 120 is provided on a closing end 126 of the switch 102, the reset sheet shaft center 120 is connected with a reset sheet 119, the reset sheet 119 is connected with the elastic conductive sheet 108, and when the switch opening end 125 is pressed, the switch elastic positioning shaft 107 is positioned in the switch opening end positioning groove 128, and the conducting strip contact 118 of the elastic conducting strip 108 is contacted with the thermal actuating metal strip contact 117; in the state that the closing end 126 of the switch 102 is pressed, the switch elastic positioning shaft 107 is positioned in the switch closing end positioning groove 129, and the conductive sheet contact 118 of the elastic conductive sheet 108 is separated from the thermal actuating sheet contact 117.
Further, as shown in fig. 1-C and 1-E, a reset lever 130 is disposed on the switch 102, and the reset lever 130 is located above the thermal actuating metal sheet contact 117.
In operation of the preferred embodiment shown in fig. 1-C and 1-E, when the closing end 126 of the switch 102 is pressed, the spring positioning ring 105 telescopically positions the switch elastic positioning shaft 107 in the switch closing end positioning groove 129, the return hook 119 is moved downward by the switch 102, the elastic conductive sheet 108 is moved downward along the bump 110' by the return hook 119, the conductive sheet contact 118 is separated from the heat-actuated sheet metal contact 117, and the return projection 130 is located just above the heat-actuated sheet metal contact 117; similarly, in the state that the opening end 125 of the switch 102 is pressed, the spring positioning ring 105 makes the switch elastic positioning shaft 107 telescopically positioned in the switch opening end positioning groove 128, the elastic conducting strip 108 moves upwards along the salient point 110' under the driving of the resetting hook piece 119 and is positioned along the thermal moving metal sheet contact and conducting strip contact positioner 116, so that the conducting strip contact 118 is contacted with the thermal moving metal sheet contact 117 to work; when the thermal actuating metal sheet 115 is bent in an overload manner, the thermal actuating metal sheet contact 117 is separated from the conductive sheet contact 118 along with the bending of the thermal actuating metal sheet 115, at this time, the switch 102 is still in an open state at the open end 125, if the thermal actuating metal sheet is required to work again, the close end 126 needs to be pressed down, the return convex rod 130 is driven by the switch 102 to move down, so that the return convex rod 130 pushes the thermal actuating metal sheet contact 117 to move down together until the thermal actuating metal sheet 115 returns to be positioned along the thermal actuating metal sheet return bump 114, and at this time, the conductive sheet contact 118 moves down along with the return hook sheet 119, and when the open end 125 is pressed down, the normal work can be started, and the conductive sheet contact 118 moves up under the action of the return hook sheet 119 and contacts with the thermal actuating metal sheet contact 117 to conduct an output power supply.
Further, as shown in fig. 1-D, it is different from the embodiments shown in fig. 1-C and 1-E in that the reset hook sheet 119 includes a reset sheet 131 and a reset tab 134, the reset sheet 131 is located above the thermal metal sheet contact 117, the reset tab 134 is located below the conductive sheet contact 118, and the conductive sheet contact 118 is connected to the reset tab 134.
The preferred embodiment shown in fig. 1-D operates on the same principle as the embodiment shown in fig. 1-C and 1-E, except that in the closed end 126 of the push-down switch 102, the elastic conductive sheet 108 moves down along the bumps 110 'under the drive of the return tab 134, and the conductive sheet contacts 118 are separated from the heat-actuated sheet contacts 117, and in the open end 125 of the push-down switch 102, the elastic conductive sheet 108 moves up along the bumps 110' under the drive of the return tab 134, and is positioned along the heat-actuated sheet contacts and the conductive sheet contact positioner 116, so that the conductive sheet contacts 118 and the heat-actuated sheet contacts 117 operate; when the thermal actuating metal sheet 115 is bent in an overload manner, the thermal actuating metal sheet contact 117 is separated from the conductive sheet contact 118 along with the bending of the thermal actuating metal sheet 115, at this time, the switch 102 is still in an open state at the open end 125, and if the thermal actuating metal sheet is required to work again, the close end 126 is required to be pressed down, so that the resetting sheet 119 is driven by the switch 102 to move down, and the resetting sheet 131 pushes the thermal actuating metal sheet contact 117 to move down together until the thermal actuating metal sheet 115 is reset and positioned along the thermal actuating metal sheet resetting bump 114.
In a preferred embodiment, as shown in fig. 3-C and 3-D, the elastic conductive sheet 108 is located above the thermal actuating metal sheet 115, the positioning spring 133 is connected between the switch axis 103 and the upper surface of the elastic conductive sheet 108, the lower surface of the elastic conductive sheet 108 is abutted with the bump 110 ", the bump 110" is connected in the switch housing 101, the bump 110 "is located at the conductive sheet and power input sheet contact point 123, the conductive sheet and power input sheet contact point 123 is the contact point of the elastic conductive sheet 108 and the power input sheet 111, the reset sheet axis 120 is arranged on the open end 125 of the switch 102, the reset sheet axis 120 is connected with the reset hook sheet 119, and the contact point 118 of the elastic conductive sheet 108 is in contact with the thermal actuating metal sheet contact point 117 in the state that the switch 102 is switched from the close end 126 to the open end 125.
In operation of the preferred embodiment shown in fig. 3-C and 3-D, the positioning spring 133 will bend towards both sides with the switch 102 being turned on and off, and the positioning spring 133 is controlled by the switch 102 to drive the conductive sheet contact 118 to contact with or separate from the thermal metal sheet contact 117, specifically: in the state of pressing the closing end 126, the positioning spring 133 is bent towards the direction away from the closing end 126, so that the positioning spring 133 forms a pushing force towards the closing end 126 on the elastic conducting strip 108, so that the elastic conducting strip 108 is lifted, and the conducting strip contact 118 is separated from the thermal actuating sheet metal contact 117; similarly, in the state of pressing the opening end 125, the positioning spring 133 is bent away from the opening end 125, so that the positioning spring 133 applies a pushing force to the elastic conductive sheet 108 in the direction toward the opening end 125, and the elastic conductive sheet 108 falls to the thermal moving metal plate contact and conductive sheet contact positioner 116 for positioning, so that the conductive sheet contact 118 is in contact with the thermal moving metal plate contact 117; when the thermal actuating metal sheet 115 is bent due to overload, the thermal actuating metal sheet contact 117 is separated from the conductive sheet contact 118 along with the bending of the thermal actuating metal sheet 115, and the thermal actuating metal sheet 115 is in contact with the reset sheet at the lower end of the reset hook sheet 119 as shown in fig. 3-C, at this time, the switch 102 is still in an open state at the open end 125, and if it needs to be operated again, the close end 126 needs to be pressed down, so that the switch 102 is linked with the reset hook sheet 119 to pull up and position the thermal actuating metal sheet 115 along the thermal actuating metal sheet reset bump 114, and then the open end 125 is pressed down to drop the elastic conductive sheet 108 again, so that the conductive sheet contact 118 is in contact with the thermal actuating metal sheet contact 117 to conduct the output power.
The utility model relates to a switch protection device, establish elastic conduction piece 108 and thermal motion sheetmetal 115 in the switch shell body 101, elastic conduction piece 108 establishes conducting strip contact 118, thermal motion sheetmetal 115 establishes thermal motion sheetmetal contact 117, switch 102 opens, conducting strip contact 118 contacts thermal motion sheetmetal contact 117, switch 102 closes, conducting strip contact 118 breaks away from thermal motion sheetmetal contact 117, switch 102 opens or closes, thermal motion sheetmetal contact 117 is the orientation state, it is accurate because of compulsive pulling-up or pressing influence bending deformation and electric current to make thermal motion sheetmetal. Under the state that the thermal motion metal sheet 115 is bent in an overload mode, the thermal motion metal sheet contact 117 bounces off the conductive sheet contact 118 to disconnect the power supply, the return hook 119 is pressed down or pulled up by utilizing the opening or closing of the switch 102, the thermal motion metal sheet contact 117 contacts the conductive sheet contact 118, and the components are combined into a shell which is an overload switch.
The utility model relates to a switch protection device, the thermal actuating metal sheet 115 and the elastic conducting strip 108 can be arranged above or below the thermal actuating metal sheet contact and the conducting strip contact locator 116 in an interchangeable way, or any suitable arrangement mode; the switch 102 is linked with the resetting hook piece 119, the resetting hook piece 119 is provided with a resetting pressing piece 131 and a resetting pulling piece 134, so that the two functions are integrated, and the resetting pressing piece 131, the resetting pulling piece 134 or the resetting convex rod 130 can be respectively separated into independent devices; the positioning structure of the switch 102 when the switch is turned on or off and the conductive sheet contact 118 is flipped open or contacted with the thermal actuating sheet metal contact 117 can be selected from suitable structures to exchange matching combinations according to the present invention, for example, the structure of the elastic conductive sheet in fig. 3 can be applied to other drawings such as fig. 1 and fig. 2, which is not limited herein.
The utility model relates to a switch protection device can adorn switch pilot lamp on the market, as shown in FIG. 1, when switch 102 was opened, power indicator was bright, and when switch 102 closed, power indicator was extinguished, the statement here.
The utility model relates to a switch protection device still can be changed into vertical key switch by key switch or rocker switch, and it no longer explains with the attached drawing here.
The elastic conductive sheet 108, the power input sheet 111, the thermal metal sheet power output sheet 113, the thermal metal sheet 115 and other structures of the present invention can be bent or made in necessary shapes or fixed by using conductive sheet or plastic parts, and can be fixed to application structure points by using heat-resistant hard plastic or metal sheets to increase necessary positioning functions.
The foregoing is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any person skilled in the art should understand that they can make equivalent changes and modifications without departing from the principle and concept of the present invention.
Claims (10)
1. A switch protection device, comprising:
a switch outer housing;
the switch is positioned in the switch shell and comprises an opening end and a closing end, a switch axis is arranged on the switch, the opening end and the closing end can rotate around the switch axis, a resetting piece axis is arranged on the switch, and a resetting hook piece is connected to the resetting piece axis;
the elastic conducting plate is positioned in the switch shell, one end of the elastic conducting plate is provided with a conducting plate contact, and the other end of the elastic conducting plate is combined with the power input plate;
a thermal actuating metal sheet located in the switch outer case, one end of the thermal actuating metal sheet being provided with a thermal actuating metal sheet contact, the thermal actuating metal sheet contact being disposed opposite to the conductive sheet contact, the other end of the thermal actuating metal sheet being combined with a thermal actuating metal sheet power input sheet;
at least one thermal actuated metal sheet contact and conductive sheet contact locator connected within the switch housing, the thermal actuated metal sheet contact and conductive sheet contact locator sandwiched between the elastic conductive sheet and the thermal actuated metal sheet; the conductive sheet contact is in contact with the thermal actuation metal sheet contact in a state where the open end of the switch is pressed; the conductive sheet contact is separated from the thermal actuated metal sheet contact in a state where the closing end of the switch is pressed.
2. The switch protection device of claim 1, wherein said thermal actuated metal plate contact and conductive plate contact locator has a notch, and said resilient conductive plate or said thermal actuated metal plate is positioned on said thermal actuated metal plate contact and conductive plate contact locator by said notch.
3. The switch protection device according to claim 1, wherein two reset piece positioning blocks are provided in the switch outer case, and the reset hook piece is located between the two reset piece positioning blocks.
4. The switch protection device as claimed in claim 1, wherein a positioning shaft switch toggle frame is disposed at the switch axis, a spring is disposed in the positioning shaft switch toggle frame, a switch elastic positioning shaft is disposed in the spring, the elastic conductive plate is disposed above the thermal actuating metal plate, the switch elastic positioning shaft abuts against an upper surface of the elastic conductive plate, a protruding point is abutted against a lower surface of the elastic conductive plate, the protruding point is connected in the switch housing, the switch elastic positioning shaft moves from an upper surface of the elastic conductive plate on one side of the protruding point to an upper surface of the elastic conductive plate on the other side of the protruding point in a state that the switch is switched from the off end to the on end, and a conductive plate contact of the elastic conductive plate contacts with the thermal actuating metal plate contact.
5. The switch protection device of claim 4, wherein a reset plate is attached to said reset hook plate, said reset plate being located below said thermal metal plate contact.
6. The switch protection device as claimed in claim 4, wherein a thermal metal sheet contact of the thermal metal sheet is sleeved on the reset hook, and a reset positioning spring is connected to one end of the thermal metal sheet contact of the thermal metal sheet and abuts against the switch housing.
7. The switch protection device according to claim 1, wherein a positioning shaft switch toggle frame is disposed at the switch axis, a spring is disposed in the positioning shaft switch toggle frame, a switch elastic positioning shaft is disposed in the spring, a switch positioning block is disposed in the switch housing, a switch opening end positioning groove and a switch closing end positioning groove are disposed on the switch positioning block, the elastic conductive plate is disposed below the heat-actuated metal plate, the reset hook plate is connected to the elastic conductive plate, the switch elastic positioning shaft is disposed in the switch opening end positioning groove in a state where the switch opening end is pressed, and a conductive plate contact of the elastic conductive plate is in contact with the heat-actuated metal plate contact; when the switch closing end is pressed, the switch elastic positioning shaft is positioned in the switch closing end positioning groove, and the conducting strip contact of the elastic conducting strip is separated from the thermal actuating metal strip contact.
8. The switch protector as claimed in claim 7, wherein the switch is provided with a return cam located above the thermal actuated blade contact.
9. The switch protection device of claim 7, wherein said reset tab comprises a reset tab and a reset tab, said reset tab is located above said thermally actuated metal tab contact, said conductive tab contact is connected to said reset tab.
10. The switch protection device of claim 1, wherein the elastic conductive sheet is located above the heat actuated metal plate, a positioning spring is connected between the switch axis and the upper surface of the elastic conductive sheet, a bump is abutted on the lower surface of the elastic conductive sheet, the bump is connected in the switch housing, and the conductive sheet contact of the elastic conductive sheet is in contact with the heat actuated metal plate contact in a state that the switch is switched from the off end to the on end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103211520 | 2014-06-30 | ||
| TW103211520U TWM493806U (en) | 2014-06-30 | 2014-06-30 | Switch protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390986U true CN204390986U (en) | 2015-06-10 |
Family
ID=52784091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520117518.3U Expired - Fee Related CN204390986U (en) | 2014-06-30 | 2015-02-27 | Switch protection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204390986U (en) |
| TW (1) | TWM493806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113555650A (en) * | 2021-09-16 | 2021-10-26 | 深圳市华浩德电子有限公司 | Power supply circuit cut-off device for preventing electric shock |
-
2014
- 2014-06-30 TW TW103211520U patent/TWM493806U/en not_active IP Right Cessation
-
2015
- 2015-02-27 CN CN201520117518.3U patent/CN204390986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113555650A (en) * | 2021-09-16 | 2021-10-26 | 深圳市华浩德电子有限公司 | Power supply circuit cut-off device for preventing electric shock |
| CN113555650B (en) * | 2021-09-16 | 2021-12-03 | 深圳市华浩德电子有限公司 | Power supply circuit cut-off device for preventing electric shock |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM493806U (en) | 2015-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20160227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |