CN212257284U - Button type mobile socket with dual overload prevention function - Google Patents
Button type mobile socket with dual overload prevention function Download PDFInfo
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- CN212257284U CN212257284U CN202021585875.XU CN202021585875U CN212257284U CN 212257284 U CN212257284 U CN 212257284U CN 202021585875 U CN202021585875 U CN 202021585875U CN 212257284 U CN212257284 U CN 212257284U
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Abstract
The utility model particularly relates to a push button type mobile socket with dual anti-overload function has solved the unable single jack of protection of current anti-overload mobile socket, the complicated problem that is difficult to the popularization of structure. A push-button type mobile socket with double overload prevention functions is characterized in that a metal reed clip is in an omega shape, and one side of an arc part of the metal reed clip is fixedly connected with a first shape memory alloy part; the upper part of the insulating button penetrates through the upper wall of the switch shell, the bottom of the insulating button is fixedly connected with a movable lug plate, and one surface of the movable lug plate is integrally provided with a movable contact; a static wiring sheet is fixed on the switch shell, a static contact is integrally arranged on the surface of the static wiring sheet opposite to the movable wiring sheet, and a second shape memory alloy part is arranged between the movable wiring sheet and the inner wall of the switch shell opposite to the movable wiring sheet. The utility model discloses a dual overload protection of button switch outage and jack outage has simple structure, response sensitivity, security height, advantage with low costs, easily popularization.
Description
Technical Field
The utility model belongs to the electrical component field specifically is a push button type mobile socket with dual anti-overload function.
Background
With the increasing increase of household appliances, the current load of the household mobile socket is larger and larger. The electric fire can be caused by overlarge current, short circuit of electric wires, overheating of electric appliances and the like, and the overload-prevention mobile socket is widely used for avoiding the occurrence of the electric fire.
The overload protection function is realized through setting up overload protector mostly to current commercial overload prevention mobile socket, nevertheless when the circuit that takes place single jack transships, can't realize power-off protection, can't eliminate the risk that causes electric fire completely. Patent CN109524857A discloses an automatic power-off overheat-proof socket, which comprises a conductive column and an insulating layer, wherein when the socket generates heat seriously, mercury expands, so that the circuit is disconnected, and an overheat protection effect is achieved. However, the utility model has a complex structure, and uses mercury harmful to human body, which is not beneficial to popularization and application. Therefore, an overload prevention mobile socket which is fast in temperature response, high in temperature control precision, simple in structure and capable of protecting a single jack is needed to be designed, so that the problems that the existing overload prevention socket cannot protect the single jack, is complex in structure and is difficult to popularize are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that current overload protection mobile socket can't protect single jack, the structure is complicated to be difficult to promote, provide a button type mobile socket with dual overload protection function.
The utility model discloses an adopt following technical scheme to realize:
a push-button type mobile socket with double overload prevention functions comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips; the power supply circuit and each metal reed clip are arranged inside the socket shell; the metal reed clip is in an omega shape, and one side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part which is attached to the arc surface of the metal reed clip;
the button switch comprises a switch shell and an insulating button, the switch shell is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button penetrates through the upper wall of the switch shell, and a return spring is vertically arranged between the upper part of the insulating button and the upper wall of the switch shell; the bottom of the insulating button is fixedly connected with a movable lug plate, and one surface of the movable lug plate is integrally provided with a movable contact; a static wiring sheet is fixed on the switch shell, a static contact which is opposite to the movable contact up and down is integrally arranged on the surface of the static wiring sheet opposite to the movable wiring sheet, and the static wiring sheet and the movable wiring sheet are connected in series in the power supply circuit through the movable contact and the static contact; a second shape memory alloy component arranged at the same side as the moving contact is arranged between the moving lug and the inner wall of the switch shell opposite to the moving lug.
The first shape memory alloy component and the second shape memory alloy component are made of nickel-titanium alloy, nickel-titanium-copper alloy or nickel-titanium-niobium alloy.
The second shape memory alloy component is spring-shaped.
The number of the movable contacts is one or two, and the fixed contacts are in one-to-one corresponding contact with the movable contacts along the vertical direction.
The metal reed clip is made of copper; the metal reed clamp and the first shape memory alloy part are fixedly connected through low-temperature brazing, adhesive bonding or riveting.
When a single electric appliance circuit on the mobile socket is overloaded to cause local lead overheating, the temperature of the metal reed clamp rises, the temperature of the first shape memory alloy component rises synchronously, the first shape memory alloy component is excited to be converted from a soft inelastic martensite phase to a superelastic austenite phase, and the preset shape is restored to change the radian of the first shape memory alloy component, so that the metal reed clamp is driven to deform, the purpose of separating the metal reed clamp from the plug is realized, and the power failure when the single electric appliance circuit is overloaded is realized. When the total power of the electric appliance on the mobile socket exceeds the load, the cost-causing mobile socket lead is overheated, the temperature of the inner cavity of the button switch rises along with the temperature rise of the second shape memory alloy part, the second shape memory alloy part is excited to be converted from a soft inelastic martensite phase into a superelastic austenite phase, the preset shape is restored to increase the height of the second shape memory alloy part, the distance between the movable lug and the static lug is increased, the static contact is driven to be separated from the movable contact, and therefore the power failure when the total power of the electric appliance exceeds the load, the cost-causing mobile socket lead is overheated is realized. When the circuit overload factor is eliminated, the temperature of the second shape memory alloy part in the button switch and the first shape memory alloy part on the metal reed clip is reduced to be lower than the phase transition temperature, the austenite phase with super elasticity and high strength is transformed into the soft martensite phase, and the mobile socket can restore the normal power supply.
The utility model has the advantages of reasonable design reliably, realized the dual overload protection of button switch outage and jack outage, shape memory alloy temperature perception is accurate moreover, and the action response is rapid, and the reliability is high, and stability is high, can realize the function of the recoverable power supply of back under the temperature drop to safe operating temperature simultaneously, has simple structure, response sensitivity, security height, with low costs, application scope wide, the advantage of easily promoting.
Drawings
Fig. 1 is a schematic structural diagram of a single-contact normally-closed push-button switch in embodiment 3 of the present invention;
fig. 2 is a schematic structural diagram of a single-contact normally-open push-button switch in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a dual-contact normally closed push-button switch according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a dual-contact normally open push-button switch according to embodiment 4 of the present invention;
fig. 5 is a schematic structural view of a metal reed clip according to the present invention;
fig. 6 is a state reference diagram of the push button switch when the single electric appliance circuit in embodiment 1 of the present invention is overloaded;
fig. 7 is a reference diagram of the state of the metal reed clip automatically disconnecting when the circuit of a single electrical appliance in embodiment 1 of the present invention is overloaded;
fig. 8 is a state reference diagram of the automatic disconnection of the push switch when the total power of the electric appliance exceeds the load in embodiment 2 of the present invention.
In the figure, 1-metal reed clip, 2-first shape memory alloy component, 3-switch shell, 4-insulating button, 5-reset spring, 6-moving lug, 7-moving contact, 8-static lug, 9-static contact, 10-second shape memory alloy component.
Detailed Description
Example 1
A push-button type mobile socket with double overload prevention functions is disclosed, as shown in figures 2 and 5, and comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips 1; the power supply circuit and each metal reed clip 1 are arranged inside the socket shell; the metal reed clip 1 is in an omega shape, and the outer side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part 2 which is attached to the outer arc surface of the metal reed clip;
the button switch comprises a switch shell 3 and an insulating button 4, wherein the switch shell 3 is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button 4 penetrates through the upper wall of the switch shell 3, a reset spring 5 positioned above the switch shell 3 is vertically arranged between the upper part of the insulating button 4 and the upper wall of the switch shell 3, the reset spring 5 is sleeved on the upper part of the insulating button 4, and the bottom end part of the reset spring is fixedly connected with the upper wall of the switch shell 3; the bottom of the insulating button 4 is fixedly connected with a movable lug 6, the left part of the movable lug 6 penetrates through and is fixed on the left side wall and the right part of the switch shell 3 and tilts upwards, and the right end of the lower surface of the movable lug is integrally provided with a movable contact 7; a static wiring sheet 8 penetrates through and is fixed on the right side wall of the switch shell 3, a static contact 9 positioned right below the movable contact 7 is integrally arranged on the upper surface of the static wiring sheet 8, and an operation gap is reserved between the static contact 9 and the movable contact 7; the static lug 8 and the movable lug 6 are connected in series in a power supply circuit in a blocking way through the movable contact 7 and the static contact 9; a second shape memory alloy part 10 is vertically arranged below the right part of the movable connecting lug 6, and the bottom of the second shape memory alloy part 10 is fixed with the inner bottom wall of the switch shell 3.
The first shape memory alloy part 2 and the second shape memory alloy part 10 are both made of nitinol.
The second shape memory alloy component 10 is spring-shaped.
The number of the movable contacts 7 is one, and the fixed contact 9 is vertically contacted with the movable contacts 7.
The metal reed clip 1 is made of copper; the metal reed clip 1 and the first shape memory alloy part 2 are fixedly connected through high-strength instant adhesive bonding.
Performance testing of the second shape memory alloy component 10: the second shape memory alloy component 10 is measured using a differential scanning calorimeter and the measurement shows the austenite phase transition end temperature afThe point is 56 ℃; the second shape memory alloy member 10 was tested using a universal tensile testing machine with an ambient temperature chamber, and the test result showed that the output force of deformation of the second shape memory alloy member 10 when it was heated from room temperature to 60 ℃ was 14N.
Performance test of the first shape memory alloy member 2: the first shape memory alloy member 2 was examined by a differential scanning calorimeter, and the examination result showed the austenite phase transition completion temperature AfThe point is 55 ℃; the first shape memory alloy member 2 was tested using a universal tensile testing machine with an ambient temperature chamber, and the test results showed that the output force of deformation of the first shape memory alloy member 2 when it was heated from room temperature to 60 ℃ was 35N.
The height of the switch shell 3 is 10mm, the width is 10mm, the length is 15mm, and through detection, the force required for separating the movable contact 7 of the movable wiring piece 6 from the fixed contact 9 of the fixed wiring piece 8 is 10N; the force required for opening the clamping opening of the metal reed clamp 1 is 20N; the first shape memory alloy part 2 and the second shape memory alloy part 10 prepared by the above process can satisfy the design requirements of the present mobile socket.
Verification experiment of overload prevention function:
the mobile socket is matched with an RVV lead with the rated current of 16A, the voltage is 220V, the total bearing power is 3520W, the safe working temperature is set to be not higher than 60 ℃ (the temperature is set according to the use temperature range of the RVV polyvinyl chloride insulated polyvinyl chloride sheath flexible cable meeting the national standard requirement, and the recommended safe use temperature range of the commercially available RVV cable is-30 ℃ to 70 ℃); connecting an electric heating furnace with the rated power of 3000W to the mobile socket, wherein a lead wire distributed on the electric heating furnace is an RVV lead wire with the rated current of 10A; a non-contact infrared thermometer is adopted to monitor the temperature of the movable socket and the wire in the experimental process.
As shown in fig. 6, when the insulating button 4 is pressed, the circuit is switched on, and the electric heating furnace starts to heat; at this time, the second shape memory alloy member 10 is in the martensite phase and is not in contact with the movable terminal 6, the first shape memory alloy member 2 is in the martensite phase, and the metal reed clip 1 is in close contact with the plug. After being electrified for 4min, the temperature of the wire of the movable socket is measured to be 32 ℃, the temperature of the button switch is measured to be 33 ℃, the temperature of the wire of the electric heating furnace is measured to be 49 ℃, and the temperature of the metal reed clamp 1 of the jack is measured to be 45 ℃. After being electrified for 6min, the metal reed clamp 1 automatically opens and separates from the plug as shown in figure 7, and simultaneously the electric heating furnace stops working, the temperature of the metal reed clamp 1 is measured to be 57 ℃, the temperature of the lead of the electric heating furnace is 66 ℃, the temperature of the lead of the movable socket is 34 ℃, and the temperature of the button switch is 35 ℃. Because the temperature of the button switch does not reach the upper limit of the safe working temperature, the button switch is not automatically switched off.
The experiment represents the condition that the local lead is overheated due to the overload of a single electric appliance circuit, under the condition, the metal reed clip 1 of the jack of the electric appliance reaches the upper limit of the safe working temperature firstly, and is automatically powered off, so that the continuous overload of the circuit is avoided. After the electric heating furnace is removed for 10min, the mobile socket button switch and the metal reed clip 1 are restored to the room temperature, and the mobile socket restores the power supply function.
Example 2
A push-button type mobile socket with double overload prevention functions is disclosed, as shown in figures 3 and 5, and comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips 1; the power supply circuit and each metal reed clip 1 are arranged inside the socket shell; the metal reed clip 1 is in an omega shape, and the outer side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part 2 which is attached to the outer arc surface of the metal reed clip;
the button switch comprises a switch shell 3 and an insulating button 4, wherein the switch shell 3 is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button 4 penetrates through the upper wall of the switch shell 3, a reset spring 5 positioned above the switch shell 3 is vertically arranged between the upper part of the insulating button 4 and the upper wall of the switch shell 3, the reset spring 5 is sleeved on the upper part of the insulating button 4, and the bottom end part of the reset spring is fixedly connected with the upper wall of the switch shell 3; the bottom of the insulating button 4 is fixedly connected with a horizontally placed movable lug 6, and the left end and the right end of the upper surface of the movable lug 6 are respectively and integrally provided with a movable contact 7; a static wiring sheet 8 penetrates through and is fixed on the left side wall and the right side wall of the switch shell 3 respectively, two static contacts 9 are integrally arranged on the lower surfaces of the two static wiring sheets 8 respectively, the two static contacts 9 are in one-to-one corresponding contact with the two movable contacts 7, and the static wiring sheet 8 and the movable wiring sheet 6 are connected in series in a power supply circuit through the movable contacts 7 and the static contacts 9; the middle part of the insulating button 4 is movably sleeved with a second shape memory alloy part 10 along the vertical direction, and an operation gap is reserved between the second shape memory alloy part 10 and the upper inner wall of the switch shell 3.
The first shape memory alloy part 2 and the second shape memory alloy part 10 are both made of nitinol.
The second shape memory alloy component 10 is spring-shaped.
The number of the movable contacts 7 is two, and the fixed contacts 9 are in one-to-one corresponding contact with the movable contacts 7 along the vertical direction.
The metal reed clip 1 is made of copper; the metal reed clip 1 and the first shape memory alloy part 2 are fixedly connected through high-strength instant adhesive bonding.
Performance testing of the second shape memory alloy component 10: the second shape memory alloy component 10 is measured using a differential scanning calorimeter and the measurement shows the austenite phase transition end temperature afThe point is 56 ℃; the second shape memory alloy member 10 was tested using a universal tensile testing machine with an ambient temperature chamber, and the test result showed that the output force of deformation of the second shape memory alloy member 10 when it was heated from room temperature to 60 ℃ was 14N.
Performance test of the first shape memory alloy member 2: the first shape memory alloy member 2 was examined by a differential scanning calorimeter, and the examination result showed the austenite phase transition completion temperature AfThe point is 55 ℃; the first shape memory alloy component 2 is detected by using a universal tensile testing machine with an ambient temperature box, and the detection result shows that the shape of the first shape memory alloy component 2 is increased from room temperature to 60 DEG CThe variable output force was 35N.
The height of the switch shell 3 is 10mm, the width is 10mm, the length is 15mm, and through detection, the force required for separating the movable contact 7 of the movable wiring piece 6 from the fixed contact 9 of the fixed wiring piece 8 is 10N; the force required for opening the clamping opening of the metal reed clamp 1 is 20N; the first shape memory alloy part 2 and the second shape memory alloy part 10 prepared by the above process can satisfy the design requirements of the present mobile socket.
Verification experiment of overload prevention function:
the mobile socket is matched with an RVV lead with the rated current of 10A, the voltage is 220V, the total bearing power is 2200W, the safe working temperature is set to be not higher than 60 ℃ (the temperature is set according to the use temperature range of the RVV polyvinyl chloride insulated polyvinyl chloride sheath flexible cable meeting the national standard requirement, and the recommended safe use temperature range of the commercially available RVV cable is-30 ℃ to 70 ℃); three electric heating furnaces with the rated power of 1000W are connected to the mobile socket, and the wires distributed on the electric heating furnaces are RVV wires with the rated current of 10A; a non-contact infrared thermometer is adopted to monitor the temperature of the movable socket and the wire in the experimental process.
As shown in fig. 3, the insulated button is in a spring state, i.e., the circuit is switched on, and the three electric heating furnaces start to heat; at this time, the second shape memory alloy member 10 is in the martensite phase without contacting the upper inner wall of the switch case, the first shape memory alloy member 2 is in the martensite phase, and the metal reed clip 1 is in close contact with the plug. After being electrified for 4min, the temperature of the wire of the movable socket is measured to be 46 ℃, the temperature of the button switch is measured to be 48 ℃, the temperature of the wire of the three electric heating furnaces is respectively 31 ℃, 32 ℃, 30 ℃ and the temperature of the wire of the jack metal reed clamp is measured to be 34 ℃. After the power is supplied for 8min, the button switch is automatically pressed, as shown in fig. 8, the movable contact 7 is separated from the fixed contact 9, the circuit is disconnected, the movable socket and the electric heating furnace stop working, the temperature of the wire of the movable socket is measured to be 69 ℃, the temperature of the button switch is measured to be 61 ℃, the temperature of the wire of 3 electric heating furnaces is measured to be 32 ℃, 33 ℃ and 31 ℃, and the temperature of the metal reed clamp 1 of the jack is measured to be 36 ℃. Because the temperature of the metal reed clip 1 does not reach the upper limit of the safe working temperature, the metal reed clip 1 does not automatically open.
The experiment represents the condition that the total power of the electric appliance on the mobile socket exceeds the load to cause the overheating of the wire of the mobile socket, and under the condition, each distributor does not overload independently, but the total power is overlarge to cause the overall overload of the mobile socket, the temperature of the wire of the mobile socket and the temperature of the button switch rise rapidly, and the button switch is powered off automatically when reaching the safe working temperature, so that the continuous rise of the temperature of the wire is avoided, and the overload protection effect is realized on the circuit and the electric appliance. After the electric heating furnace is removed for 10min, the mobile socket button switch and the metal reed clip 1 are restored to the room temperature, and the mobile socket restores the power supply function.
Example 3
A push-button type mobile socket with double overload prevention functions is disclosed, as shown in figures 1 and 5, and comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips 1; the power supply circuit and each metal reed clip 1 are arranged inside the socket shell; the metal reed clip 1 is in an omega shape, and the outer side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part 2 which is attached to the outer arc surface of the metal reed clip;
the button switch comprises a switch shell 3 and an insulating button 4, wherein the switch shell 3 is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button 4 penetrates through the upper wall of the switch shell 3, a reset spring 5 positioned above the switch shell 3 is vertically arranged between the upper part of the insulating button 4 and the upper wall of the switch shell 3, the reset spring 5 is sleeved on the upper part of the insulating button 4, and the bottom end part of the reset spring is fixedly connected with the upper wall of the switch shell 3; the bottom of the insulating button 4 is fixedly connected with a movable lug 6, the left part of the movable lug 6 penetrates through and is fixed on the left side wall of the switch shell 3, the right part of the movable lug is bent downwards, and the right end of the upper surface is integrally provided with a movable contact 7; a static wiring sheet 8 penetrates through and is fixed on the right side wall of the switch shell 3, and a static contact 9 which is contacted with the movable contact 7 up and down is integrally arranged on the lower surface of the static wiring sheet 8; the static lug 8 and the movable lug 6 are connected in series in the power supply circuit through the movable contact 7 and the static contact 9; the middle part of the insulating button 4 is movably sleeved with a second shape memory alloy part 10 along the vertical direction, and an operation gap is reserved between the second shape memory alloy part 10 and the upper inner wall of the switch shell 3.
The first shape memory alloy part 2 and the second shape memory alloy part 10 are both made of nitinol.
The second shape memory alloy component 10 is spring-shaped.
The number of the movable contacts 7 is one, and the fixed contact 9 is vertically contacted with the movable contacts 7.
The metal reed clip 1 is made of copper; the metal reed clip 1 and the first shape memory alloy part 2 are fixedly connected through low-temperature brazing.
Example 4
A push-button type mobile socket with double overload prevention functions is disclosed, as shown in figures 4 and 5, and comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips 1; the power supply circuit and each metal reed clip 1 are arranged inside the socket shell; the metal reed clip 1 is in an omega shape, and the outer side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part 2 which is attached to the outer arc surface of the metal reed clip;
the button switch comprises a switch shell 3 and an insulating button 4, wherein the switch shell 3 is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button 4 penetrates through the upper wall of the switch shell 3, a reset spring 5 positioned above the switch shell 3 is vertically arranged between the upper part of the insulating button 4 and the upper wall of the switch shell 3, the reset spring 5 is sleeved on the upper part of the insulating button 4, and the bottom end part of the reset spring is fixedly connected with the upper wall of the switch shell 3; the bottom of the insulating button 4 is fixedly connected with a horizontally placed movable lug 6, and the left end and the right end of the lower surface of the movable lug 6 are respectively and integrally provided with a movable contact 7; a static wiring sheet 8 is respectively fixedly penetrated through the left side wall and the right side wall of the switch shell 3, two static contacts 9 positioned right below the two movable contacts 7 are respectively and integrally arranged on the upper surfaces of the two static wiring sheets 8, and an operation gap is reserved between the upper and lower corresponding static contacts 9 and the movable contacts 7; the static lug 8 and the movable lug 6 are connected in series in a power supply circuit in a blocking way through the movable contact 7 and the static contact 9; a second shape memory alloy part 10 is vertically arranged below the movable connecting lug 6, and the bottom of the second shape memory alloy part 10 is fixed with the inner bottom wall of the switch shell 3.
The first shape memory alloy part 2 and the second shape memory alloy part 10 are both made of nitinol.
The second shape memory alloy component 10 is spring-shaped.
The number of the movable contacts 7 is two, and the fixed contacts 9 are in one-to-one corresponding contact with the movable contacts 7 along the vertical direction.
The metal reed clip 1 is made of copper; the metal reed clip 1 and the first shape memory alloy part 2 are fixedly connected through riveting.
In a specific implementation process, the first shape memory alloy part 2 is arc-shaped; the static lug 8, the static contact 9, the movable contact 7 and the movable lug 6 are sequentially connected in series in a power supply circuit adjacent to a live wire end; the first shape memory alloy component 2 and the second shape memory alloy component 10 are both made of a one-way memorized shape memory alloy; fig. 1 and 2 are schematic structural views of a single-contact push-button switch of the present invention; fig. 3 and 4 are schematic structural views of a double-movable-contact button switch according to the present invention; in the single-moving-contact normally-closed switch shown in fig. 1 and the double-moving-contact normally-closed switch shown in fig. 3, when the button is in the pop-up state, the moving contact and the fixed contact are in the closed state, and when the button is pressed, the moving contact and the fixed contact are in the disconnected state; in the single-moving-contact normally open switch shown in fig. 2 and the double-moving-contact normally open switch shown in fig. 4, when the button is in the pop-up state, the moving contact and the fixed contact are separated, and when the button is pressed, the moving contact and the fixed contact are in the closed state.
Claims (5)
1. A push-button type mobile socket with double overload prevention functions comprises a socket shell, a power supply circuit, a push-button switch and a plurality of metal reed clips (1); the power supply circuit and each metal reed clip (1) are arranged inside the socket shell; the method is characterized in that: the metal reed clip (1) is in an omega shape, and one side of the arc part of the metal reed clip is fixedly connected with a first shape memory alloy part (2) which is attached to the arc surface of the metal reed clip;
the button switch comprises a switch shell (3) and an insulating button (4), wherein the switch shell (3) is arranged inside the socket shell, and the upper wall of the switch shell is connected with the upper wall of the socket shell into a whole; the upper part of the insulating button (4) penetrates through the upper wall of the switch shell (3), and a return spring (5) is vertically arranged between the upper part and the lower part; the bottom of the insulating button (4) is fixedly connected with a movable wiring sheet (6), and one surface of the movable wiring sheet (6) is integrally provided with a movable contact (7); a static wiring sheet (8) is fixed on the switch shell (3), a static contact (9) which is opposite to the movable contact (7) up and down is integrally arranged on the surface of the static wiring sheet (8) opposite to the movable wiring sheet (6), and the static wiring sheet (8) and the movable wiring sheet (6) are connected in series in the power supply circuit through the movable contact (7) and the static contact (9); a second shape memory alloy component (10) which is arranged on the same side as the movable contact (7) is arranged between the movable lug plate (6) and the inner wall of the switch shell (3) opposite to the movable lug plate.
2. A push button mobile jack with dual overload prevention capability as defined in claim 1 wherein: the first shape memory alloy part (2) and the second shape memory alloy part (10) are both made of nickel-titanium alloy, nickel-titanium-copper alloy or nickel-titanium-niobium alloy.
3. A push button mobile jack with dual overload prevention capability as defined in claim 1 wherein: the second shape memory alloy component (10) is spring-shaped.
4. A push button mobile jack with dual overload prevention capability as defined in claim 1 wherein: the number of the movable contacts (7) is one or two, and the fixed contacts (9) are in one-to-one contact with the movable contacts (7) along the vertical direction.
5. A push button mobile jack with dual overload prevention capability as defined in claim 1 wherein: the metal reed clip (1) is made of copper; the metal reed clamp (1) and the first shape memory alloy part (2) are fixedly connected through low-temperature brazing, adhesive bonding or riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585875.XU CN212257284U (en) | 2020-08-04 | 2020-08-04 | Button type mobile socket with dual overload prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585875.XU CN212257284U (en) | 2020-08-04 | 2020-08-04 | Button type mobile socket with dual overload prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212257284U true CN212257284U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021585875.XU Active CN212257284U (en) | 2020-08-04 | 2020-08-04 | Button type mobile socket with dual overload prevention function |
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| Country | Link |
|---|---|
| CN (1) | CN212257284U (en) |
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2020
- 2020-08-04 CN CN202021585875.XU patent/CN212257284U/en active Active
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