A wired micro switch

Abstract

This utility model relates to a wired micro switch, the key technical points of which are: It includes: a housing; a base disposed within the housing; a pressing component disposed on the housing, and a sealing element adapted to the pressing component fitted onto the housing; a switching component disposed on the base; a glue injection groove disposed within the base; the switching component extending into the glue injection groove; a cable corresponding to the switching component disposed within the glue injection groove; the cable being electrically connected to the switching component; and waterproof glue filling the glue injection groove. By filling the glue injection groove with waterproof glue, this application can, on the one hand, fix the connection between the cable and the switching component, and on the other hand, fully seal the connection between the cable and the switching component, ensuring the waterproof performance of the micro switch.

Description

Technical Field

[0001] This utility model relates to the field of micro switch technology, and more specifically, to a wired micro switch. Background Technology

[0002] A micro switch, as the name suggests, is a switch that uses very little force. It is a switch in which external mechanical force is applied to an actuating spring through a transmission element, causing the fixed contact and the moving contact at its end to quickly connect or disconnect.

[0003] In devices such as car fuel tank caps, charging guns, and electronic locks, microswitches are typically used to detect whether the device has moved into position. In traditional microswitches, cables are usually soldered to the microswitch pins, and the connection is then wrapped with heat-shrink tubing. Refer to Chinese Utility Model Patent Application No. CN201520842512.2, which discloses a microswitch assembly. This assembly includes a microswitch with a first through-hole at its bottom; microswitch pins, one end of which is connected to the microswitch, and the other end extending outward through the first through-hole; a wire, one end of which is connected to the outward-extending end of the microswitch pin; and a TPE housing consisting of a bottom plate and four side plates, forming a hollow structure. The top opening of the TPE housing connects to the bottom of the microswitch. A second through-hole is provided on the bottom plate, and the connection between the microswitch pin and the wire is located within the hollow structure. The end of the wire furthest from the microswitch pin extends outward through the second through-hole.

[0004] Although the microswitches described above have their wire and pin connections wrapped, they are still prone to aging after prolonged use, causing the wire and pin connections to be exposed and affecting the waterproof performance of the microswitches. Therefore, there is still room for improvement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a micro switch with a wire to solve the above-mentioned technical problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a wired micro switch, comprising: a housing; a base disposed within the housing; a switching component disposed on the base; a pressing component disposed on the housing, and a sealing element adapted to the pressing component fitted onto the housing; an adhesive injection groove disposed within the base; the switching component extending into the adhesive injection groove; a cable corresponding to the switching component disposed within the adhesive injection groove; the cable being electrically connected to the switching component; and waterproof adhesive being filled into the adhesive injection groove.

[0007] Specifically, the base is placed inside the housing, and an injection groove is provided on the base so that the electrical connection between the cable and the switching component is located in the injection groove. After the cable and the switching component are electrically connected, the injection groove is filled with waterproof glue. This not only fixes the connection between the cable and the switching component, but also fully seals the connection, ensuring the waterproof performance of the micro switch.

[0008] Optionally, the switching component includes: a common terminal, a normally open terminal, and a normally closed terminal; the common terminal, normally open terminal, and normally closed terminal are sequentially arranged on the base; a tension spring is provided on the common terminal; one end of the tension spring is fixed to the common terminal, and the other end is provided with a movable spring piece; one end of the movable spring piece abuts against the common terminal; the common terminal, normally open terminal, and normally closed terminal are respectively electrically connected to corresponding cables; when the pressing component is in a free state, the other end of the movable spring piece is connected to the normally closed terminal; when the pressing component is pressed, the other end of the movable spring piece is connected to the normally open terminal.

[0009] Specifically, when the pressing component is pressed, it contacts the tension spring, which applies a pulling force to the moving spring. The moving spring moves under the action of the tension spring, separating it from the normally closed terminal. After the pressing component moves to the trigger position, the moving spring connects to the normally open terminal. The current input is connected through a common terminal, and the normally open and normally closed terminals are connected to the two current output terminals, respectively. This allows the circuit to switch its on / off state when the pressing component is compressed.

[0010] Optionally, the movable spring includes: a contact portion, a connecting portion, and two support rods; the contact portion is disposed at one end of the connecting portion; the two support rods are disposed at the other end of the connecting portion, and the two support rods are engaged with the common terminal; the other end of the tension spring is fixed to the connecting portion; when the pressing assembly is in a free state, the contact portion is connected to the normally closed terminal; when the pressing assembly is pressed, the contact portion is connected to the normally open terminal.

[0011] Specifically, when the pressing component is pressed, the tension spring pulls the connecting part. At this time, the two support rods are compressed and deformed, pushing the connecting part towards the normally open terminal. Subsequently, the contact part makes contact with the normally open terminal and conducts electricity. By setting two support rods, the connection stability of the pressing component, moving spring, and tension spring can be ensured when pressed, eliminating the quality risk of the switch falling apart.

[0012] Optionally, a normally open contact is provided on the normally open terminal.

[0013] Specifically, the moving spring contacts the normally open contact, thus connecting the fixed terminal and the normally open terminal. By setting a normally open contact on the normally open terminal, the contact sensitivity between the moving spring and the normally open terminal can be improved.

[0014] Optionally, a normally closed contact is provided on the normally closed terminal.

[0015] Specifically, the moving spring contacts the normally closed contact, thus connecting the fixed terminal and the normally closed terminal. By setting a normally closed contact on the normally closed terminal, the contact sensitivity between the moving spring and the normally closed terminal can be improved.

[0016] Optionally, the pressing assembly includes: a button and a pressing plate; the pressing plate is disposed on the housing; the button is movably disposed on the housing; one end of the button abuts against the pressing plate, and the other end abuts against the tension spring; the sealing element is sleeved on the button.

[0017] Specifically, when the micro switch is pressed, the pressing plate rotates around its connection with the housing under external force, decomposing the external force into pressure along the button's axis. This causes the button to move axially and compress the tension spring, thereby changing the micro switch's conduction state. By decomposing the lateral or oblique force acting on the pressing plate into pressure along the button's axis, the button's movement is prevented from becoming stuck, ensuring the micro switch's performance.

[0018] Optionally, the pressing pad is provided with pressing protrusions.

[0019] Specifically, the design of the pressing protrusion can reduce the pressing stroke of the pressing plate, thereby reducing the degree of deformation of the pressing plate and extending its service life.

[0020] Optionally, the button includes: a pressing part, a transmission column, and a pressing block; the pressing part is disposed at one end of the transmission column, and the pressing block is disposed at the other end of the transmission column; the pressing part abuts against the pressing plate; and the pressing block abuts against the tension spring.

[0021] Specifically, after the pressing part is squeezed, it pushes the transmission column into the housing. The pressing block moves with the transmission column and pushes the connecting spring, thereby switching the on / off state of the micro switch. The housing is provided with a limiting groove corresponding to the pressing block. The pressing block slides in the limiting groove, making the movement of the transmission column more stable.

[0022] Optionally, the seal is hemispherical; one end of the seal is fitted onto the transmission column, and the other end is embedded in the housing.

[0023] Specifically, one end of the seal is fitted onto the outside of the transmission column, and the other end of the seal is embedded in the housing to fix the seal. This prevents moisture or dust from entering the microswitch through the gap between the transmission column and the housing, thus improving the waterproof reliability of the microswitch.

[0024] In summary, this utility model has the following beneficial effects:

[0025] The base is placed inside the housing, and a glue injection groove is provided on the base so that the electrical connection points of the cable and the switching component are located in the glue injection groove. After the cable and the switching component are electrically connected, the glue injection groove is filled with waterproof glue. This not only fixes the connection between the cable and the switching component, but also fully seals the connection between the cable and the switching component, ensuring the waterproof performance of the micro switch. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a wired micro switch according to an embodiment of the present invention;

[0027] Figure 2 This is an exploded view of a wired micro switch according to an embodiment of the present invention.

[0028] Figure 3 yes Figure 2 A magnified structural diagram of A in the middle;

[0029] Figure 4 This is a cross-sectional view of a wired micro switch according to an embodiment of the present invention.

[0030] In the diagram: 1. Housing; 2. Base; 3. Switching assembly; 31. Common terminal; 32. Normally open terminal; 33. Normally closed terminal; 34. Tension spring; 35. Moving spring piece; 351. Contact part; 352. Connecting part; 353. Support rod; 4. Pressing assembly; 41. Button; 411. Pressing part; 412. Transmission column; 413. Extrusion block; 42. Pressing piece; 5. Seal; 6. Glue injection groove; 7. Cable; 8. Waterproof glue; 9. Normally open contact; 10. Normally closed contact; 11. Pressing protrusion. Detailed Implementation

[0031] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Example 1

[0035] This embodiment provides a micro switch with a wire, such as Figure 1-4 As shown, it includes: a housing 1; a base 2 disposed inside the housing 1; a switching component 3 disposed on the base 2; a pressing component 4 disposed on the housing 1, and a sealing element 5 adapted to the pressing component 4 fitted on the housing 1; an adhesive injection groove 6 disposed inside the base 2; the switching component 3 extending into the adhesive injection groove 6; a cable 7 corresponding to the switching component 3 disposed inside the adhesive injection groove 6; the cable 7 being electrically connected to the switching component 3; and waterproof adhesive 8 being filled inside the adhesive injection groove 6.

[0036] Specifically, the base 2 is placed inside the housing 1, and an injection groove 6 is provided on the base 2 so that the position where the cable 7 and the switching component 3 are electrically connected is located in the injection groove 6. After the cable 7 and the switching component 3 are electrically connected, waterproof glue 8 is filled into the injection groove 6. On the one hand, the connection between the cable 7 and the switching component 3 can be fixed, and on the other hand, the connection between the cable 7 and the switching component 3 can be fully sealed to ensure the waterproof performance of the micro switch.

[0037] In practical applications, the cable 7 is first soldered to the switching component 3, and then waterproof glue 8 is injected into the glue injection tank 6. The glue injection is stopped after the waterproof glue 8 fills the glue injection tank 6. At this time, the waterproof glue 8 can fix the cable 7 and effectively prevent moisture or dust from entering the glue injection tank 6.

[0038] Optionally, the switching component 3 includes: a common terminal 31, a normally open terminal 32, and a normally closed terminal 33; the common terminal 31, normally open terminal 32, and normally closed terminal 33 are sequentially arranged on the base 2; a tension spring 34 is provided on the common terminal 31; one end of the tension spring 34 is fixed to the common terminal 31, and the other end is provided with a movable spring piece 35; one end of the movable spring piece 35 abuts against the common terminal 31; the common terminal 31, normally open terminal 32, and normally closed terminal 33 are respectively electrically connected to the corresponding cables 7; when the pressing component 4 is in a free state, the other end of the movable spring piece 35 is connected to the normally closed terminal 33; when the pressing component 4 is pressed, the other end of the movable spring piece 35 is connected to the normally open terminal 32.

[0039] Specifically, when the pressing component 4 is pressed, it contacts the tension spring 34, causing the tension spring 34 to apply tension to the movable spring 35. The movable spring 35 moves under the action of the tension spring 34, separating from the normally closed terminal 33. After the pressing component 4 moves to the trigger position, the movable spring 35 becomes conductive with the normally open terminal 32. The current input is connected via the common terminal 31, and the normally open and normally closed terminals 32 and 33 are respectively connected to the two current output terminals, thus switching the circuit's on / off state when the pressing component 4 is compressed.

[0040] In practical applications, after the cable 7 is separated, the corresponding cable 7 is soldered to the common terminal 31, normally open terminal 32 and normally closed terminal 33 respectively. When injecting glue into the glue injection groove 6, the outer protective layer of the cable 7 is inside the glue injection groove 6, and the waterproof glue 8 can cover the outer protective layer of the cable 7, further enhancing the waterproof performance of the cable 7.

[0041] Optionally, the pressing assembly 4 includes: a button 41 and a pressing plate 42; the pressing plate 42 is disposed on the housing 1; the button 41 is movably disposed on the housing 1; one end of the button 41 abuts against the pressing plate 42, and the other end abuts against the tension spring 34; and a sealing member 5 is sleeved on the button 41.

[0042] Specifically, when the micro switch is pressed, the pressing plate 42 is subjected to an external force and rotates around its connection with the housing 1. This external force is decomposed into pressure along the axial direction of the button 41, causing the button 41 to move along its axial direction and compressing the tension spring 34, thereby changing the conduction state of the micro switch. By decomposing the lateral or oblique force acting on the pressing plate 42 into pressure along the axial direction of the button 41, it is possible to prevent the button 41 from jamming during movement, thus ensuring the performance of the micro switch.

[0043] In practical applications, a snap-fit ​​block is provided at one end of the pressing piece 42, and a fitting groove is opened on the outer shell 1. The inner wall of the fitting groove gradually narrows. After the pressing piece 42 is inserted into the fitting groove, the snap-fit ​​block deforms and fits tightly against the pressing piece 42. When one end of the pressing piece 42 passes through the fitting groove, the snap-fit ​​block resets and abuts against the outer wall of the outer shell 1, thereby fixing the position of the pressing piece 42.

[0044] Optionally, button 41 includes: a pressing part 411, a transmission column 412, and a pressing block 413; the pressing part 411 is disposed at one end of the transmission column 412, and the pressing block 413 is disposed at the other end of the transmission column 412; the pressing part 411 abuts against the pressing plate 42; the pressing block 413 abuts against the tension spring 34.

[0045] Specifically, after the pressing part 411 is squeezed, it pushes the transmission column 412 to move into the housing. The pressing block 413 moves with the transmission column 412 and pushes the connecting spring, thereby switching the on / off state of the micro switch. The housing 1 is provided with a limiting groove corresponding to the pressing block 413. The pressing block 413 slides in the limiting groove, making the movement of the transmission column 412 more stable.

[0046] Optionally, the seal 5 is hemispherical; one end of the seal 5 is sleeved on the transmission column 412, and the other end is embedded in the housing 1.

[0047] Specifically, one end of the seal 5 is fitted onto the outside of the transmission column 412, and the other end of the seal 5 is embedded in the housing and fixed. This can prevent moisture or dust from entering the micro switch through the gap between the transmission column 412 and the housing, thereby improving the waterproof reliability of the micro switch.

[0048] Example 2

[0049] This embodiment provides a micro switch with a wire, such as Figure 1-4 As shown, it includes: a housing 1; a base 2 disposed inside the housing 1; a switching component 3 disposed on the base 2; a pressing component 4 disposed on the housing 1, and a sealing element 5 adapted to the pressing component 4 fitted on the housing 1; an adhesive injection groove 6 disposed inside the base 2; the switching component 3 extending into the adhesive injection groove 6; a cable 7 corresponding to the switching component 3 disposed inside the adhesive injection groove 6; the cable 7 being electrically connected to the switching component 3; and waterproof adhesive 8 being filled inside the adhesive injection groove 6.

[0050] Specifically, the base 2 is placed inside the housing 1, and an injection groove 6 is provided on the base 2 so that the position where the cable 7 and the switching component 3 are electrically connected is located in the injection groove 6. After the cable 7 and the switching component 3 are electrically connected, waterproof glue 8 is filled into the injection groove 6. On the one hand, the connection between the cable 7 and the switching component 3 can be fixed, and on the other hand, the connection between the cable 7 and the switching component 3 can be fully sealed to ensure the waterproof performance of the micro switch.

[0051] In practical applications, the cable 7 is first soldered to the switching component 3, and then waterproof glue 8 is injected into the glue injection tank 6. The glue injection is stopped after the waterproof glue 8 fills the glue injection tank 6. At this time, the waterproof glue 8 can fix the cable 7 and effectively prevent moisture or dust from entering the glue injection tank 6.

[0052] Optionally, the switching component 3 includes: a common terminal 31, a normally open terminal 32, and a normally closed terminal 33; the common terminal 31, normally open terminal 32, and normally closed terminal 33 are sequentially arranged on the base 2; a tension spring 34 is provided on the common terminal 31; one end of the tension spring 34 is fixed to the common terminal 31, and the other end is provided with a movable spring piece 35; one end of the movable spring piece 35 abuts against the common terminal 31; the common terminal 31, normally open terminal 32, and normally closed terminal 33 are respectively electrically connected to the corresponding cables 7; when the pressing component 4 is in a free state, the other end of the movable spring piece 35 is connected to the normally closed terminal 33; when the pressing component 4 is pressed, the other end of the movable spring piece 35 is connected to the normally open terminal 32.

[0053] Specifically, when the pressing component 4 is pressed, it contacts the tension spring 34, causing the tension spring 34 to apply tension to the movable spring 35. The movable spring 35 moves under the action of the tension spring 34, separating from the normally closed terminal 33. After the pressing component 4 moves to the trigger position, the movable spring 35 becomes conductive with the normally open terminal 32. The current input is connected via the common terminal 31, and the normally open and normally closed terminals 32 and 33 are respectively connected to the two current output terminals, thus switching the circuit's on / off state when the pressing component 4 is compressed.

[0054] In practical applications, after the cable 7 is separated, the corresponding cable 7 is soldered to the common terminal 31, normally open terminal 32 and normally closed terminal 33 respectively. When injecting glue into the glue injection groove 6, the outer protective layer of the cable 7 is inside the glue injection groove 6, and the waterproof glue 8 can cover the outer protective layer of the cable 7, further enhancing the waterproof performance of the cable 7.

[0055] Optionally, the movable spring 35 includes: a contact portion 351, a connecting portion 352, and two support rods 353; the contact portion 351 is disposed at one end of the connecting portion 352; the two support rods 353 are disposed at the other end of the connecting portion 352, and the two support rods 353 are engaged with the common terminal 31; the other end of the tension spring 34 is fixed to the connecting portion 352; when the pressing assembly 4 is in a free state, the contact portion 351 is connected to the normally closed terminal 33; when the pressing assembly 4 is pressed, the contact portion 351 is connected to the normally open terminal 32.

[0056] Specifically, when the pressing component 4 is pressed, the tension spring 34 pulls the connecting part 352. At this time, the two support rods 353 are compressed and deformed, pushing the connecting part 352 towards the normally open terminal 32. Subsequently, the contact part 351 contacts the normally open terminal 32 and conducts electricity. By setting two support rods 353, the connection stability of the pressing component 4, the moving spring 35, and the tension spring 34 can be ensured when pressed, eliminating the quality risk of the switch falling apart.

[0057] In practical applications, a snap-fit ​​block is provided at one end of the pressing piece 42, and a fitting groove is opened on the outer shell 1. The inner wall of the fitting groove gradually narrows. After the pressing piece 42 is inserted into the fitting groove, the snap-fit ​​block deforms and fits tightly against the pressing piece 42. When one end of the pressing piece 42 passes through the fitting groove, the snap-fit ​​block resets and abuts against the outer wall of the outer shell 1, thereby fixing the position of the pressing piece 42.

[0058] Optionally, a normally open contact 9 is provided on the normally open terminal 32.

[0059] Specifically, the movable spring 35 contacts the normally open contact 9, thus connecting the fixed terminal and the normally open terminal 32. By providing the normally open contact 9 on the normally open terminal 32, the contact sensitivity between the movable spring 35 and the normally open terminal 32 can be improved.

[0060] Optionally, a normally closed contact 10 is provided on the normally closed terminal 33.

[0061] Specifically, the movable spring 35 contacts the normally closed contact 10, thus connecting the fixed terminal and the normally closed terminal 33. By providing the normally closed contact 10 on the normally closed terminal 33, the contact sensitivity between the movable spring 35 and the normally closed terminal 33 can be improved.

[0062] Optionally, the pressing assembly 4 includes: a button 41 and a pressing plate 42; the pressing plate 42 is disposed on the housing 1; the button 41 is movably disposed on the housing 1; one end of the button 41 abuts against the pressing plate 42, and the other end abuts against the tension spring 34; and a sealing member 5 is sleeved on the button 41.

[0063] Specifically, when the micro switch is pressed, the pressing plate 42 is subjected to an external force and rotates around its connection with the housing 1. This external force is decomposed into pressure along the axial direction of the button 41, causing the button 41 to move along its axial direction and compressing the tension spring 34, thereby changing the conduction state of the micro switch. By decomposing the lateral or oblique force acting on the pressing plate 42 into pressure along the axial direction of the button 41, it is possible to prevent the button 41 from jamming during movement, thus ensuring the performance of the micro switch.

[0064] Optionally, the pressing plate 42 is provided with pressing protrusions 11.

[0065] Specifically, the setting of the pressing protrusion 11 can reduce the pressing stroke of the pressing plate 42, thereby reducing the degree of deformation of the pressing plate 42 and extending the service life of the pressing plate 42.

[0066] Optionally, button 41 includes: a pressing part 411, a transmission column 412, and a pressing block 413; the pressing part 411 is disposed at one end of the transmission column 412, and the pressing block 413 is disposed at the other end of the transmission column 412; the pressing part 411 abuts against the pressing plate 42; the pressing block 413 abuts against the tension spring 34.

[0067] Specifically, after the pressing part 411 is squeezed, it pushes the transmission column 412 to move into the housing. The pressing block 413 moves with the transmission column 412 and pushes the connecting spring, thereby switching the on / off state of the micro switch. The housing 1 is provided with a limiting groove corresponding to the pressing block 413. The pressing block 413 slides in the limiting groove, making the movement of the transmission column 412 more stable.

[0068] Optionally, the seal 5 is hemispherical; one end of the seal 5 is sleeved on the transmission column 412, and the other end is embedded in the housing 1.

[0069] Specifically, one end of the seal 5 is fitted onto the outside of the transmission column 412, and the other end of the seal 5 is embedded in the housing and fixed. This can prevent moisture or dust from entering the micro switch through the gap between the transmission column 412 and the housing, thereby improving the waterproof reliability of the micro switch.

[0070] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A micro switch with a wire, characterized in that, include: shell; A base is provided inside the housing; a pressing component is provided on the housing, and a sealing element adapted to the pressing component is fitted on the housing; a switching component is provided on the base; an adhesive injection groove is provided inside the base; the switching component extends into the adhesive injection groove; a cable corresponding to the switching component is provided in the adhesive injection groove; the cable is electrically connected to the switching component; and waterproof adhesive is filled in the adhesive injection groove.

2. A micro switch with a wire according to claim 1, characterized in that, The switching component includes a common terminal, a normally open terminal, and a normally closed terminal; the common terminal, normally open terminal, and normally closed terminal are sequentially arranged on the base; a tension spring is provided on the common terminal; one end of the tension spring is fixed to the common terminal, and the other end is provided with a movable spring piece; one end of the movable spring piece abuts against the common terminal; the common terminal, normally open terminal, and normally closed terminal are respectively electrically connected to their corresponding cables; when the pressing component is in a free state, the other end of the movable spring piece is connected to the normally closed terminal; when the pressing component is pressed, the other end of the movable spring piece is connected to the normally open terminal.

3. A micro switch with a wire according to claim 2, characterized in that, The movable spring includes: a contact portion, a connecting portion, and two support rods; the contact portion is disposed at one end of the connecting portion; the two support rods are disposed at the other end of the connecting portion, and the two support rods are engaged with the common terminal; the other end of the tension spring is fixed to the connecting portion; when the pressing assembly is in a free state, the contact portion is connected to the normally closed terminal; when the pressing assembly is pressed, the contact portion is connected to the normally open terminal.

4. A wired micro switch according to claim 2 or 3, characterized in that, A normally open contact is provided on the normally open terminal.

5. A wired micro switch according to claim 2 or 3, characterized in that, A normally closed contact is provided on the normally closed terminal.

6. A micro switch with a wire according to claim 2, characterized in that, The pressing assembly includes: a button and a pressing plate; the pressing plate is disposed on the housing; the button is movably disposed on the housing; one end of the button abuts against the pressing plate, and the other end abuts against the tension spring; the sealing element is sleeved on the button.

7. A micro switch with a wire according to claim 6, characterized in that, The pressing plate is provided with pressing protrusions.

8. A micro switch with a wire according to claim 6, characterized in that, The button includes: a pressing part, a transmission column, and a pressing block; the pressing part is disposed at one end of the transmission column, and the pressing block is disposed at the other end of the transmission column; the pressing part abuts against the pressing plate; the pressing block abuts against the tension spring.

9. A micro switch with a wire according to claim 8, characterized in that, The seal is hemispherical; one end of the seal is fitted onto the transmission column, and the other end is embedded in the outer shell.

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