A new type of door lock switch

Abstract

The present invention relates to the field of household appliance accessories, and specifically to a novel door lock switch, which includes a housing and a lock block. A slider is arranged inside the housing, and a locking chute is arranged on the slider. The locking chute is a one-way rotating double-locking point track groove; a swing wire is arranged on the upper part of the slider. The swing wire is U-shaped. One end of the swing wire is fixedly connected to the housing on the upper part of the slider, and the other end abuts against the locking chute; a moving steering column is arranged on the bottom surface of the slider; a fixed steering column, a front fixed terminal and a rear fixed terminal are arranged behind the slider. A shape memory alloy wire is wound around the fixed steering column and the moving steering column. Two ends of the shape memory alloy wire are fixedly connected and electrically connected to the front fixed terminal and the rear fixed terminal; after the shape memory alloy wire is electrified, the slider is pulled backward to drive the lock block to slide to realize the locking of the door lock. The present invention has the beneficial effects of simple structure, small volume, light weight and low power consumption.

Description

Technical Field

[0001] The present invention relates to the field of home appliance accessories, and specifically to a new type of door lock switch. Background Art

[0002] In the safety protection of a washing machine, it is necessary to lock the door of the washing machine before starting the washing machine to avoid danger. In the prior art, an electromagnetic lock is used to lock the door lock. When an electromagnetic coil is used as the power, the volume of the door lock structure is large and the power consumption is also large. Not only the production cost is high, but the usage cost is also high. Therefore, it has become an urgent requirement to design a new type of door lock switch that is light and low-power. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a new type of door lock switch with a simple structure, low cost and low power consumption.

[0004] The technical solution for the technical problem to be solved by the present invention is: a new type of door lock switch, including a housing and a lock block, characterized in that: a slideway is provided inside the housing, a slider is slidably arranged on the slideway, a locking chute is provided on the slider, and the locking chute is a one-way rotating double-locking point track groove; a moving steering column is provided on the bottom surface of the slider; the slider drives the lock block to slide; a swinging wire is provided on the upper part of the slider, the swinging wire is U-shaped, one end of the swinging wire is fixedly connected to the housing above the slider, and the other end abuts against the locking chute; a fixed steering column, a front fixed terminal and a rear fixed terminal are provided behind the slider, and the front fixed terminal and the rear fixed terminal are located in front of and behind the fixed steering column; a shape memory alloy wire is wound around the fixed steering column and the moving steering column, and both ends of the shape memory alloy wire are fixedly connected and electrically connected to the front fixed terminal and the rear fixed terminal; after the shape memory alloy wire is electrified, the slider is pulled backward, and a return spring for driving the slider to slide forward is provided between the slider and the housing.

[0005] Preferably, a pin block is provided on the slider, and the pin block is fixedly connected to a position near the end of the shape memory alloy wire.

[0006] Preferably, a pulley is sleeved on the upper part of the moving steering column and / or the fixed steering column.

[0007] Preferably, a dial block is provided on the side of the slider, and a rotating cam is provided on one side of the housing near the dial block;

[0008] A swinging protrusion is provided on one side of the rotating cam near the dial block, there are two dial blocks, and the swinging protrusion is inserted between the two dial blocks; a driving protrusion is provided on the rotating cam, and the driving protrusion drives the lock block to pop out or retract.

[0009] Preferably, there are two moving steering columns.

[0010] More preferably, the housing is provided with a lead terminal, and a PTC protection module is connected in series between the rear fixed terminal and the lead terminal.

[0011] Preferably, a spiral groove is provided on the outer periphery of the driving protrusion, and a toggle block is provided on a side of the locking block facing the rotating cam, and the toggle block is inserted into the spiral groove; the rotating cam drives the locking block to slide in the axial direction of the rotating cam;

[0012] The housing is provided with a locking hole corresponding to the sliding direction of the locking block.

[0013] More preferably, the driving protrusion includes a push-out protrusion and a pull-back protrusion, the push-out protrusion is provided with a spacing in both the axial direction and the circumferential direction of the rotating cam, and a spiral groove is formed between the push-out protrusion and the pull-back protrusion.

[0014] More preferably, it also includes a main circuit control contact, and the lead terminal includes a power terminal, a common terminal, and a control terminal.

[0015] The power terminal is electrically connected to the rear fixed terminal, or the power terminal is electrically connected to the rear fixed terminal via a PTC protection module;

[0016] The main circuit control contact comprises a U-shaped conductive piece, the closed end of the U-shaped conductive piece is electrically and fixedly connected to the common terminal, and the movement direction of the open end of the U-shaped conductive piece is the same as the axis direction of the rotating cam;

[0017] The two sides of the open end of the U-shaped conductive piece are respectively a first movable terminal and a second movable terminal; the front fixed terminal is installed on the terminal fixing seat, and the first movable terminal is electrically connected to the front fixed terminal;

[0018] The upper portion of the second movable terminal is connected to the upper portion of the locking block;

[0019] A static contact is provided at the lower portion of the locking block, the static contact is fixedly connected to the housing and electrically connected to the control terminal;

[0020] A moving contact is provided on the second moving terminal at a position corresponding to the static contact; when the slider drives the locking block to slide out of the housing, the moving and static contacts are engaged.

[0021] More preferably, it includes a main circuit control contact, and the main circuit control contact is a position switch.

[0022] The beneficial effects of the present invention are:

[0023] 1. The memory alloy wire has low cost. Compared with the coil wound by copper wire, it can greatly reduce the cost, while reducing the volume and weight, making home appliances more lightweight and exquisite.

[0024] 2. The present invention can complete locking and unlocking in the state of 40ms when the power is on, and the rest of the state is non-conductive state. Maintaining the conductive state with the electromagnetic coil can greatly reduce power consumption.

[0025] 3. By setting the control contacts, the door lock and the main circuit control can be locked. Only after the door lock is locked can the main circuit be started and the motor be started, thus greatly improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the appearance of an embodiment of the present invention.

[0027] Figure 2 It is a top view of an embodiment of the present invention.

[0028] Figure 3 It is a side sectional schematic diagram of the internal structure of an embodiment of the present invention.

[0029] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the present invention.

[0030] Figure 5 Schematic diagram of a slider according to an embodiment of the present invention.

[0031] In the figure:

[0032] 1011, rear slide; 1013, front slide; 1012, reversing track; 41, terminal fixing seat; 105, slide; 104, lock hole; 9022, pull-back protrusion; 9021, push-out protrusion; 12, moving contact; 13, stationary contact; 142, second moving terminal; 141, first moving terminal; 111, toggle block; 6, rear fixed terminal; 4, front fixed terminal; 2, swing wire; 18, control terminal; 17, common terminal; 16, power terminal; 7, PTC protection module; 901, swing protrusion; 902, drive protrusion; 11, lock block; 10, pin block; 3, memory alloy wire; 5, fixed steering column; 9, rotating cam; 103, moving steering column; 102, toggle block; 101, locking slide; 1, slider; DETAILED DESCRIPTION

[0033] In order to make the technical solutions and beneficial effects of the present invention clearer, the embodiments of the present invention are further explained in detail below.

[0034] A novel door lock switch comprises a housing, a lock block 11 and a driving mechanism for driving the lock block 11 to slide. Figure 1 As shown, a lock hole 104 is provided on the housing, and the lock block 11 is driven to extend out of the lock hole to achieve locking. The driving mechanism of the present invention utilizes the characteristic that the length of the memory alloy wire 3 changes when energized to achieve driving of the lock block 11.

[0035] In order to achieve the movement of the position, a slide 105 is provided inside the housing. Figure 2 As shown, a slideway 105 is disposed at the left front of the housing. Slideway 105 comprises two protrusions extending in a front-to-back direction, forming a slideway. A protrusion extending in a front-to-back direction is disposed near the edge of the housing, forming a slideway with the housing. The rear portion of the slider 1 is provided with a protrusion embedded within the slideway to define the sliding direction. A locking groove 101 is disposed at the front of the slider 1. To lock and secure the slider 1, a swing wire 2 is disposed above the locking groove 101. The swing wire 2 is U-shaped, with a fixed seat disposed at the front end of the slideway 105. One end of the swing wire 2 is fixedly mounted within the fixed seat, while the other end of the swing wire 2 is inserted into the locking groove 101. The swing wire 2 applies a downward force to the slider 1, ensuring that the slider 1 does not disengage from the slideway 105.

[0036] The overall shape of the locking slide 101 is an annular heart shape, including a rear slide 1011, a reversing path 1012 and a front slide 1013. The depth of the rear slide is less than the depth of the reversing path 1012, the depth of the lower end of the front slide 1013 is less than the depth of the lower end of the rear slide 1011, and the depth of the upper end of the front slide 1013 is greater than the depth of the reversing path 1012. Under normal conditions, the rear end of the swing wire 2 is plugged into the rear end of the rear slide 1011, and the swing wire 2 is elastic and can apply a force to the slider 1 toward the side of the front slide 1013. When the slider 1 is forced to move backward, the lower end of the swing wire 2 slides forward relative to the slider 1 in the rear slide 1011. When it slides to the position of the reversing path 1012, it loses the backward pulling force. Under the action of the reset spring, the slider 1 receives a forward pulling force, such as Figure 5 As shown, a locking recess is provided at the front end of the front slide 1013, and the rear end of the swing wire 2 is engaged in the recess to lock the position of the slider 1. When a backward force is applied again, the rear end of the swing wire 2 jumps out of the recess and slides into the front slide 1013 on the left side of the recess under the action of its own elastic force. After the backward pulling force is lost, the slider slides forward under the forward force of the return spring, and the rear end of the swing wire 2 moves rearward relative to the slider in the locking groove 101 and finally engages with the rear end of the rear slide 1011.

[0037] With the above structure, the slider 1 can be switched between two positions, and the slider 1 can then drive the locking block 11 to slide, so that the locking block 11 is inserted into the lock hole or pulled out of the lock hole.

[0038] In order to apply a forward pulling force to the slider 1, a return spring for driving the slider 1 to slide forward is provided between the slider 1 and the housing. The return spring can be a compression spring, which is arranged at the rear end of the slider 1. After being subjected to the pulling force, it compresses, and after losing the pulling force, it resets, thereby driving the slider 1 to move forward. At this time, a retaining piece needs to be provided at the rear part of the slider 1 to install the return spring.

[0039] In order to apply a backward pulling force to the slider 1, a movable steering column 103 is provided on the slider 1. In this embodiment, the movable steering column 103 is arranged on the bottom surface of the lower part of the slider, and can also be arranged on the upper part or the side surface of the rear part of the slider 1. The movable steering column 103 is installed on the slider 1 through a rotating shaft.

[0040] A fixed steering column 5, a front fixed terminal 4 and a rear fixed terminal 6 are provided behind the slider 1. The front fixed terminal 4 and the rear fixed terminal 6 are located in front of and behind the fixed steering column 5. As shown in the figure, the rear fixed terminal 6 is located at the left rear of the fixed steering column 5, that is, at the position of the left rear corner of the housing. The front fixed terminal 4 is arranged at the right front of the fixed steering column 5, at the position in the middle of the housing. Both ends of the shape memory alloy wire 3 are fixedly connected and electrically connected to the front fixed terminal 4 and the rear fixed terminal 6 respectively. The shape memory alloy wire 3 is wound around the fixed steering column 5 and the movable steering column 103. At this time, after the shape memory alloy wire 3 is electrified, it shrinks and becomes shorter, and the movable steering column 103 acts as a movable pulley and slides downward under the action of the contraction force.

[0041] Preferably, in order to reduce the influence of the pulling force on the front fixed terminal 4, a shape memory alloy wire fixing device is provided on the slider 1. The shape memory alloy wire fixing device includes a pin block 10 and a clamping portion arranged on the slider 1. The pin block 10 is fixedly connected to the position of the shape memory alloy wire 3 close to the end. As shown in the figure, the shape memory alloy wire 3 is embedded in the middle of the pin block 10. The clamping portion is a plate shape provided with a groove. The pin block 10 is arranged at the front part of the groove. The shape memory alloy wire 3 passes through the groove, and the pin block 10 and the clamping portion are fixed by the tightened shape memory alloy wire 3. An ordinary wire or a relatively redundant length of shape memory alloy wire can be used between the pin block 10 and the front fixed terminal 4 so as not to affect the normal sliding of the slider 1.

[0042] Preferably, in order to reduce the pulling force or reduce the moving space, two movable steering columns 103 can be provided. The shape memory alloy wire 3 is wound around the two movable steering columns 103 and the fixed steering column 5 to form an M-shaped broken line. The shape memory metal wire has a certain expansion and contraction ratio, so a certain length of shape memory alloy wire 3 needs to be arranged. At this time, the requirement of the expansion and contraction ratio can be achieved, and the effect of the pulling force can also be improved.

[0043] Furthermore, in order to reduce the influence of friction and reduce the degree of wear of the memory alloy wire 3, a pulley is provided on the dynamic steering column 103 or the fixed steering column 5. At the same time, pulleys can also be provided on both the dynamic steering column 103 and the fixed steering column 5. In this case, wear is reduced and friction is reduced.

[0044] Furthermore, the slider 1 can be directly connected to the locking block 11, or the slider 1 can directly serve as the locking block 11. A reversing mechanism can also be provided to control the locking block 11 in different positions or squares. In this case, a shifting block 102 is provided on the side of the slider 1, and a rotating cam 9 is provided on the side of the housing near the shifting block 102.

[0045] The rotating cam 9 is provided with a swinging protrusion 901 on the side close to the shift block 102. There are two shift blocks 102, and the swinging protrusion is inserted between the two shift blocks 102. The rotating cam 9 is provided with a driving protrusion 902, and the driving protrusion 902 drives the locking block 11 to pop out or retract.

[0046] Furthermore, to enable the locking block 11 to be driven in different directions, a spiral groove is provided on the outer periphery of the driving protrusion 902. The driving protrusion 902 is a protrusion disposed on the outer side of the rotating cam 9 and may be fan-shaped. The spiral groove is disposed on the outer peripheral side and is a portion of a spring-like helical line disposed on the outer side of the circumference. The side of the locking block 11 facing the rotating cam 9 is provided with a toggle block 111, which is inserted into the spiral groove. During the rotation of the driving protrusion 902, the rotating cam 9 drives the locking block 11 to slide along the axis of the rotating cam 9.

[0047] At this time, a locking hole 104 is provided in the housing in the direction in which the locking block 11 slides. A sliding pipe or a slideway for installing the locking block 11 is provided on the inner side of the locking hole 104.

[0048] More preferably, the driving protrusion 902 includes a push-out protrusion 9021 and a pull-back protrusion 9022 , and the push-out protrusion 9021 is provided with a spacing in both the axial direction and the circumferential direction of the rotating cam 9 , and a spiral groove is formed between the push-out protrusion 9021 and the pull-back protrusion 9022 .

[0049] Or, specifically, Figure 4As shown in the figure, a toggle block 111 is provided in the middle of the front side of the lock block 11. The pushing protrusion 9021 is located above the toggle block 111, and the pulling-back protrusion 9022 is located below the toggle block 111. The upper part of the toggle block 111 is an inclined surface, and the pushing protrusion 9021 abuts against the inclined surface. When the slider 1 slides backward, the rotating cam 9 rotates counterclockwise. The pushing protrusion 9021 pushes the lock block 11 downward through the inclined surface, so that the lock block 11 protrudes out of the housing, and at the same time, the lock block 11 abuts against the pulling-back protrusion 9022. Similarly, when the slider 1 slides forward, the pulling-back protrusion 9022 pulls the lock block 11 back to its original position and abuts against the pushing protrusion 9021.

[0050] Preferably, in order to achieve overload protection, a lead terminal is provided on the housing, and a PTC protection module 7 is connected in series between the rear fixed terminal 6 and the lead terminal. Under normal conditions, a voltage of 40 ms is applied to the shape memory alloy wire 3. If the voltage is too high or the duration is too long, the PTC protection module 7 will play a protective role.

[0051] Preferably, in order to fix the rear fixed terminal 6, the rear fixed terminal 6 is in the shape of a sheet, and the fixed end of the shape memory alloy wire 3 is provided at the end. The rear fixed terminal 6 abuts against or is fixedly connected to the inner side wall of the housing. The PTC protection module 7 is arranged on one side of the rear fixed terminal 6, and a spring is provided between the rear fixed terminal 6 and the PTC protection module 7. The spring realizes the functions of abutting and fixing to ensure the stability of the rear fixed terminal 6 and the PTC protection module 7.

[0052] Furthermore, the above functions can realize the door lock function, but cannot realize the control function of the main circuit control power supply. Therefore, a control switch needs to be set in the above door lock structure and connected in series in the main circuit. After the door lock structure is locked, the main power circuit will be turned on, ensuring safety.

[0053] To achieve this function, a main circuit control contact can be arranged inside the housing, and the main circuit control contact is a position switch. The position switch can be a travel switch or an induction switch, and it can be arranged near the slider or the rotating cam 9. When the slider slides to make the lock block 11 in the locked state, the position switch is triggered, and the main contact of the position switch is connected in series in the main circuit. At this time, only after the door lock is closed, the main circuit will be turned on, improving safety.

[0054] Furthermore, the main circuit control contact includes a U-shaped conductive sheet. A lead terminal is arranged on the housing, including a power-on terminal 16, a common terminal 17, and a control terminal 18. The power-on terminal 16 is electrically connected to the rear fixed terminal 6, or the power-on terminal 16 is electrically connected to the rear fixed terminal 6 through the PTC protection module 7.

[0055] The closed end of the U-shaped conductive sheet is electrically and fixedly connected to the common terminal 17, and the open end of the U-shaped conductive sheet can move freely. In this embodiment, the second moving terminal 142 is linked with the lower part of the lock block 11. At this time, the moving direction of the end of the U-shaped conductive sheet is the same as the axis direction of the rotating cam 9.

[0056] The two sides of the open end of the U-shaped conductive sheet are the first moving terminal 141 and the second moving terminal 142 respectively. The front fixed terminal 4 is installed on the terminal fixing seat 41, and the terminal fixing seat 41 is fixedly connected to the inner wall of the housing. As Figure 2 shown, the front fixed terminal 4 is a horizontally placed conductive column, and terminal fixing seats 41 are arranged on both sides of the conductive column to limit or fix the first moving terminal 141. Alternatively, the first moving terminal 141 is directly electrically connected to the front fixed terminal 4.

[0057] The upper part of the second moving terminal 142 is fixedly connected to the upper part of the lock block 11. A static contact 13 is provided at the lower part of the lock block 11, and the static contact is fixedly connected to the housing and electrically connected to the control terminal 18.

[0058] Alternatively, the upper ends of the first moving terminal 141 and the second moving terminal 142 are both fixedly connected to the end of the lock block 11. At this time, it can be set that when the second moving terminal 142 is turned on with the control terminal 18, the first moving terminal 141 is disconnected from the front fixed terminal 4, that is, the first moving terminal 141 cuts off the connection with the live wire of the mains power supply, and the safety is better.

[0059] A moving contact 12 is provided at the position corresponding to the static contact 13 on the second moving terminal 142; when the slider 1 drives the lock block 11 to slide out of the housing, the moving and static contacts are combined. At this time, when the slider controls the door lock to lock, the moving contact 12 and the static contact 13 are combined, and the moving contact 12 and the static contact 13 are connected in series in the main circuit. After the door lock is closed, the main circuit is turned on.

[0060] Its working principle is:

[0061] When changing from the open state to the locked state, a pulsed voltage of 40 ms is applied to the energized terminal 16 and the common terminal 17. In the open state, the slider 1 is located at the rear. After being energized, the slider 1 slides backward to release the locking of the swinging wire 2 and the locking chute 101. Under the action of the return spring, the slider slides forward and locks to the locking position at the front. At this time, the lock block 11 moves downward and its end projects out of the housing to achieve the locking function. At the same time, the moving contact 12 and the static contact 13 are closed, and the main circuit is turned on. After the main circuit is turned on, the washing machine obtains the working power supply and enters the working state. The energized terminal 16 is connected to the live wire of the mains electricity, and the common terminal 17 is connected to the neutral wire of the mains electricity. At the same time, the common terminal 17 forms a switch with the common point 18 to control the electrical connection between the control terminal 18 and the static contact 13, and the electrical connection between the moving contact 12 and the common terminal 17. In this way, it can not only ensure the locking of the door lock, but also be turned on when the door lock is locked. When the door lock is opened, the main circuit is de-energized, and it will not cause harm to the user due to abnormal startup. When changing from the locked state to the open state, a pulsed voltage is also applied to the energized terminal 16 and the common terminal 17. At this time, the slider 1 slides backward again to release the locking of the swinging wire 2 and the locking chute 101, and moves downward to another locking position and remains at the locking position at the rear.

[0062] In summary, the above are only the preferred embodiments of the present invention and are not used to limit the scope of the present invention. Through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification. All equivalent changes and modifications in terms of the shape, structure, features and spirit described in the scope of the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A new type of door lock switch, comprising a housing, a lock block (11), characterized in that : A slideway (105) is provided inside the housing, a slider (1) is slidably provided on the slideway (105), a locking slideway (101) is provided on the slider (1), and the locking slideway (101) is a one-way rotating double-locking point track groove; a dynamic steering column (103) is provided on the bottom surface of the slider (1); the slider (1) drives the locking block (11) to slide; The upper portion of the slider (1) is provided with a swing wire (2), the swing wire (2) being U-shaped, one end of the swing wire (2) being fixedly connected to the housing of the upper portion of the slider (1), and the other end being in contact with the locking chute (101); A fixed steering column (5), a front fixed terminal (4), and a rear fixed terminal (6) are provided at the rear of the slider (1), and the front fixed terminal (4) and the rear fixed terminal (6) are located in front of and behind the fixed steering column (5); a memory alloy wire (3) is wound around the fixed steering column (5) and the dynamic steering column (103), and both ends of the memory alloy wire (3) are fixedly connected and electrically connected to the front fixed terminal (4) and the rear fixed terminal (6); The memory alloy wire (3) pulls the slider (1) backward when energized, and a return spring for driving the slider (1) to slide forward is provided between the slider (1) and the housing; The slider (1) is provided with a shift block (102) on the side thereof, and a rotating cam (9) is provided on the side of the housing close to the shift block (102); The rotating cam (9) is provided with a swinging protrusion (901) on one side close to the shifting block (102), the shifting blocks (102) are provided with two, and the swinging protrusion is inserted between the two shifting blocks (102); the rotating cam (9) is provided with a driving protrusion (902), and the driving protrusion (902) drives the locking block (11) to pop out or retract; The outer periphery of the driving protrusion (902) is provided with a spiral groove, and the side of the locking block (11) facing the rotating cam (9) is provided with a toggle block (111), and the toggle block (111) is inserted into the spiral groove; the rotating cam (9) drives the locking block (11) to slide in the axial direction of the rotating cam (9); and the housing is provided with a lock hole (104) corresponding to the sliding direction of the locking block (11); The driving protrusion (902) includes a push-out protrusion (9021) and a pull-back protrusion (9022), wherein the push-out protrusion (9021) is provided with a spacing in both the axial direction and the circumferential direction of the rotating cam (9), and a spiral groove is formed between the push-out protrusion (9021) and the pull-back protrusion (9022).

2. The novel door lock switch according to claim 1, characterized in that : The slider (1) is provided with a pin block (10), and the pin block (10) is fixedly connected to a position near the end of the memory alloy wire (3).

3. A novel door lock switch according to claim 1, characterized in that : The upper part of the movable steering column (103) and / or the fixed steering column (5) is sleeved with a pulley.

4. A novel door lock switch according to any one of claims 1-3, characterized in that : There are two dynamic steering columns (103).

5. A novel door lock switch according to claim 4, characterized in that : The housing is provided with a lead terminal, and a PTC protection module (7) is connected in series between the rear fixed terminal (6) and the lead terminal.

6. The novel door lock switch according to claim 5, characterized in that : It also includes a main circuit control contact, wherein the lead terminal includes a power terminal (16), a common terminal (17), and a control terminal (18). The energized terminal (16) and the rear fixed terminal (6) are electrically connected, or the energized terminal (16) is electrically connected to the rear fixed terminal (6) via a PTC protection module (7); The main circuit control contact includes a U-shaped conductive sheet. The closed end of the U-shaped conductive sheet is electrically connected and fixedly connected to the common terminal (17), and the moving direction of the open end of the U-shaped conductive sheet is the same as the axis direction of the rotating cam (9); The two sides of the open end of the U-shaped conductive sheet are the first moving terminal (141) and the second moving terminal (142) respectively; the front fixed terminal (4) is installed on the terminal fixing seat (41), and the first moving terminal (141) is electrically connected to the front fixed terminal (4); The upper part of the second moving terminal (142) is connected to the upper part of the locking block (11); The lower part of the locking block (11) is provided with a static contact (13), and the static contact is fixedly connected to the housing and electrically connected to the control terminal (18); A moving contact (12) is provided at a position corresponding to the static contact (13) on the second moving terminal (142); when the slider (1) drives the locking block (11) to slide out of the housing, the static and moving contacts are combined.

7. A novel door lock switch according to claim 5, characterized in that : It includes a main circuit control contact, and the main circuit control contact is a position switch.

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