Combined microswitch

Abstract

The utility model relates to the field of switches, in particular to a combined microswitch which comprises a switch body, the switch body comprises a first shell and a second shell, one end of the second shell is connected with the first shell, one side of the second shell is provided with a first connecting hole, and the other side of the second shell is provided with a first connecting column. The first connecting hole is connected with the first connecting column in a matched mode so that the other end of the second shell can be connected with another second shell, the multiple second shells can be combined and connected to meet the circuit control requirements of different electronic products, and an injection mold for producing a switch does not need to be designed for many times. The production cost is effectively reduced, the production efficiency is improved, and the problems of high production cost and low production efficiency caused by the fact that switch shells with different shapes, sizes and numbers of control modules need to be produced by different injection molds are solved.

Description

Technical Field

[0001] This utility model relates to the field of switches, specifically a combined micro switch. Background Technology

[0002] A micro switch is a small mechanical switch that can trigger the opening and closing of a circuit through very small movements. The switch contains a control module. In some switches, each control module controls a circuit independently. Different electronic products have different circuit control requirements, and the number of control modules in their switches also varies. Therefore, the shape and size of the switch housing used to install the control module also vary.

[0003] Currently, switch housings are generally produced by injection molding. Different shapes and sizes of switch housings require different injection molds for production. Each time a switch is manufactured, a corresponding injection mold needs to be designed and produced. This method greatly increases production costs and reduces production efficiency. Therefore, it is necessary to develop a modular micro switch to solve the problem of high production costs and low production efficiency caused by the need to use different injection molds for the production of switch housings with different shapes, sizes and numbers of control modules. Utility Model Content

[0004] To address the aforementioned problem of high production costs and low production efficiency caused by the need for different injection molds to produce switch housings of control modules with different shapes, sizes, and quantities, the technical solution adopted by this utility model is as follows:

[0005] A combined micro switch includes a switch body, the switch body including a first housing and a second housing with one end connected to the first housing, a first connection hole on one side of the second housing and a first connection post on the other side of the second housing, the first connection hole and the first connection post being connected to each other so that the other end of the second housing is connected to another second housing.

[0006] Furthermore, a second connecting hole is provided on one side of the first housing to cooperate with the first connecting post, and the number of the first connecting posts is at least two, and the number of the first connecting hole and the second connecting hole are the same as the number of the first connecting posts.

[0007] Furthermore, the switch body also includes a control component connected to the second housing. The second housing has a first cavity for accommodating the control component. The control component includes a slider and a contact component connected to the slider. The slider includes an abutment portion connected to the contact component and a lever connected to the abutment portion. The second housing has a third connection hole for the lever to extend out, and the third connection hole communicates with the first cavity.

[0008] Furthermore, the second housing is provided with a first protrusion and a snap-fit ​​portion that engages with the first protrusion. The snap-fit ​​portion is provided with a snap hole into which the first protrusion extends. The first protrusion of one second housing engages with the snap-fit ​​portion of another second housing to connect and fix at least two second housings together. The extension direction of the snap-fit ​​portion is the same as the extension direction of the first connecting post.

[0009] Furthermore, the first housing is provided with a second protrusion that engages with the snap-fit ​​portion, the second protrusion matching the snap-fit ​​hole, and the first housing and the second housing are respectively provided with a fourth fixing groove and a third fixing groove that cooperate with the snap-fit ​​portion, the first protrusion being located in the third fixing groove and the second protrusion being located in the fourth fixing groove.

[0010] Furthermore, both the first protrusion and the second protrusion are provided with guide portions, and the number of engaging portions is the same as that of the first protrusion, with at least two engaging portions.

[0011] Furthermore, the first cavity is provided with a fixing groove for fixing the contact assembly. The fixing groove includes a first fixing groove and a second fixing groove. The contact assembly includes a first contact strip fixed to the first fixing groove and a second contact strip fixed to the second fixing groove. The first contact strip is connected to the abutment portion.

[0012] Furthermore, the first contact strip includes a first fixing part fixed to the first fixing groove, a first contact part connected to the first fixing part, and a first pin connected to the first fixing part; the second contact strip includes a second fixing part fixed to the second fixing groove, a second contact part connected to the second fixing part, and a second pin connected to the second fixing part; the first pin and the second pin are electrically connected to an external circuit.

[0013] Furthermore, the abutting portion is provided with a recessed platform, the first contact portion is provided with a protrusion that matches the recessed platform, and the first cavity is provided with a fixing post for fixing the second contact portion. The fixing post is located on the upper side of the second contact portion, and one of the first fixing portions and the second fixing portions are respectively abutted and fixed to the first housing, and one of the first fixing portions and the second fixing portions are respectively abutted and fixed to the second housing.

[0014] Furthermore, the length of the first housing is between 10-15 mm, the width is between 1-2 mm, and the height is between 6-9 mm; the length of the second housing is between 10-15 mm, the width is between 2-4 mm, and the height is between 6-9 mm; and the first and second contact strips are provided with conductive layers.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model provides a first connecting hole on one side of the second housing and a first connecting post on the other side of the second housing. The first connecting hole and the first connecting post are connected to allow the other end of the second housing to be connected to another second housing. This enables the combination and connection of multiple second housings to meet the circuit control requirements of different electronic products. It eliminates the need to design and produce injection molds for switches multiple times, effectively reducing production costs and improving production efficiency. It solves the problem of high production costs and low production efficiency caused by the need to use different injection molds to produce switch housings with different shapes, sizes and quantities of control modules. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a combined micro switch according to the present invention.

[0018] Figure 2 This is an exploded view of a combined micro switch according to the present invention.

[0019] Figure 3 This is a schematic diagram showing the connection between the control component and the second housing of a combined micro switch according to this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the second housing of a combined micro switch according to the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the second housing of a combined micro switch according to the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the first housing of a combined micro switch according to the present invention. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Please see Figures 1 to 6A combined micro switch includes a switch body 1, which comprises a first housing 2 and a second housing 3 connected at one end to the first housing 2. The second housing 3 has a first connecting hole 31 on one side and a first connecting post 32 on the other side. The first connecting hole 31 and the first connecting post 32 are connected to each other, allowing the other end of the second housing 3 to connect to another second housing 3. By providing the first connecting hole 31 on one side of the second housing 3 and the first connecting post 32 on the other side, and allowing the other end of the second housing 3 to connect to another second housing 3, multiple second housings 3 can be combined to meet the circuit control requirements of different electronic products. This eliminates the need for multiple injection molds to design and produce the switch, effectively reducing production costs and improving production efficiency. It also solves the problem of high production costs and low production efficiency caused by the need for different injection molds to produce switch housings of different shapes, sizes, and quantities of control modules.

[0025] Furthermore, a second connecting hole 21 is provided on one side of the first housing 2 to cooperate with the first connecting post 32. The number of the first connecting posts 32 is at least two, and the number of the first connecting hole 31 and the second connecting hole 21 are the same as the number of the first connecting posts 32. The first housing 2 and the second housing 3 together form the switch housing. The first housing 2 has a second connecting hole 21 on one side that mates with the first connecting post 32. This means that the first housing 2 and the second housing 3 can be connected and fixed by a simple insertion connection, which effectively improves the convenience of switch assembly. At the same time, when the switch malfunctions, the user can easily disassemble and replace the faulty second housing 3 or the first housing 2 without replacing the entire switch body 1, which effectively reduces the maintenance cost and time of the switch. Furthermore, the number of the first connecting posts 32 is at least two, and the number of the first connecting holes 21 is the same as the number of the first connecting posts 32. This multi-point connection design makes the connection between the first housing 2 and the second housing 3 more stable and reliable, avoiding loosening or falling off due to multiple connection points. At the same time, the multi-point connection not only improves the connection stability but also enhances the structural strength of the switch body 1, making the switch more durable and less prone to damage when subjected to external forces or vibrations. Furthermore, the design of multiple connection points also helps to more easily align and install the various housings during the assembly process, effectively reducing the assembly difficulty and complexity and improving the production efficiency of the switch.

[0026] Furthermore, the switch body 1 also includes a control component 4 connected to the second housing 3. The second housing 3 is provided with a first cavity 33 for accommodating the control component 4. The control component 4 includes a slider 41 and a contact component 42 connected to the slider 41. The slider 41 includes an abutment portion 411 connected to the contact component 42 and a lever 412 connected to the abutment portion 411. The second housing 3 is provided with a third connection hole 34 for the lever 412 to extend out. The third connection hole 34 communicates with the first cavity 33. The control component 4 is the part that realizes circuit control. The design of the first cavity 33 provides space for the installation of the control component 4, effectively improving the structural compactness of the switch, while protecting the control component 4 from interference from the external environment and ensuring its stable operation. Furthermore, the control component 4 includes a slider 41 and a contact component 42 connected thereto. The slider 41 includes an abutment part 411 and a lever 412. The abutment part 411 is the part that contacts the contact component 42. The slider 41 and the contact component 42 are driven by external operation of the lever 412, thereby realizing the on / off control of the circuit. The design of the third connecting hole 34 allows the first cavity 33 to communicate with the outside. The lever 412 can extend from the third connecting hole 34, so that external operation can be conveniently applied to the lever 412, thereby controlling the slider 41 and the contact component 42, effectively improving the convenience of switch operation.

[0027] Furthermore, the second housing 3 is provided with a first protrusion 51 and a snap-fit ​​portion 52 that snaps into the first protrusion 51. The snap-fit ​​portion 52 is provided with a snap hole 53 into which the first protrusion 51 extends. The first protrusion 51 of one second housing 3 is engaged with the snap-fit ​​portion 52 of another second housing 3 to connect and fix at least two second housings 3. The extending direction of the snap-fit ​​portion 52 is the same as the extending direction of the first connecting post 32. The two second housings 3 are fixed together by a snap-fit ​​connection between the first protrusion 51 and the snap-fit ​​part 52. This snap-fit ​​connection method is not only simple and convenient to install, but also provides good connection stability and reliability. Furthermore, the snap-fit ​​part 52 is provided with a snap-fit ​​hole 53 for the first protrusion 51 to extend into. This design allows the first protrusion 51 to be snapped into the snap-fit ​​hole 53 for positioning, so that the two second housings 3 are fixedly connected, effectively improving the connection stability and reliability between the second housings 3. Furthermore, the extension direction of the snap-fit ​​part 52 is the same as the extension direction of the first connecting post 32, which means that the second housings 3 can maintain a consistent orientation when connected, which is conducive to the orderly connection of multiple second housings 3. In general, this snap-fit ​​connection method makes the connection and disassembly between the second housings 3 simple and convenient, without the need for additional tools or equipment, effectively reducing the maintenance difficulty of the switch and improving production efficiency. At the same time, it forms good connection stability, avoids circuit failures caused by loose connections, and effectively improves the reliability and stability of the switch.

[0028] Furthermore, the first housing 2 is provided with a second protrusion 23 that engages with the snap-fit ​​portion 52. The second protrusion 23 matches the snap-fit ​​hole 53. The first housing 2 and the second housing 3 are respectively provided with a fourth fixing groove 24 and a third fixing groove 54 that cooperate with the snap-fit ​​portion 52. The first protrusion 51 is located in the third fixing groove 54, and the second protrusion 23 is located in the fourth fixing groove 24. The second protrusion 23, which engages with the snap-fit ​​portion 52, increases the connection stability and reliability between the first housing 2 and the second housing 3. Furthermore, the design of the fourth fixing groove 24 and the third fixing groove 54 allows the second protrusion 23 and the first protrusion 51 to be stably fixed in their respective grooves, further preventing relative movement or loosening between the housings, ensuring a tight connection between the housings, and making the entire switch structure more compact and stable, effectively improving the connection stability between the housings and the structural compactness of the switch.

[0029] Furthermore, both the first protrusion 51 and the second protrusion 23 are provided with guide portions 511, and the number of engaging portions 52 is the same as that of the first protrusion 51, with at least two engaging portions 52. The design of the guide portions 511 helps to guide the first protrusion 51 and the second protrusion 23 smoothly into the corresponding locking holes 53 during the locking process, thereby simplifying the assembly process of the switch and effectively improving production efficiency. Furthermore, the number of engaging portions 52 is the same as that of the first protrusion 51, and there are at least two. This design ensures that there are at least two engaging points between the first housing 2 and the second housing 3, or between two second housings 3, thereby improving the stability and reliability of the connection between the housings. At the same time, the multiple engaging portions 52 make the switch structure more robust and able to withstand greater external impact, effectively improving the stability and reliability of the switch.

[0030] Furthermore, the first cavity 33 is provided with a fixing groove 331 for fixing the contact assembly 42. The fixing groove 331 includes a first fixing groove 332 and a second fixing groove 333. The contact assembly 42 includes a first contact strip 421 fixed to the first fixing groove 332 and a second contact strip 422 fixed to the second fixing groove 333. The first contact strip 421 is connected to the abutment portion 411. The fixing groove 331 is used to fix the contact assembly 42. The fixing groove includes a first fixing groove 332 and a second fixing groove 333. The first contact strip 421 and the second contact strip 422 of the contact assembly 42 are respectively fixed in the first fixing groove 332 and the second fixing groove 333. Further, the first contact strip 421 is connected to the abutment part 411. When the slider 41 is pushed, the abutment part 411 pushes the first contact strip 421 to undergo elastic deformation and connect with the second contact strip 422, thereby realizing the circuit connection. Through the design of the fixing groove 331, the contact assembly 42 can be stably fixed in the first cavity 33, avoiding circuit failure caused by loosening and effectively improving the reliability of the switch.

[0031] Furthermore, the first contact bar 421 includes a first fixing part 4211 fixed to the first fixing groove 332, a first contact part 4212 connected to the first fixing part 4211, and a first pin 4213 connected to the first fixing part 4211. The second contact bar 422 includes a second fixing part 4221 fixed to the second fixing groove 333, a second contact part 4222 connected to the second fixing part 4221, and a second pin 4223 connected to the second fixing part 4221. The first pin 4213 and the second pin 4223 are electrically connected to an external circuit. The first fixing part 4211 is used to fix the first contact strip 421 in the first fixing groove 332. Similarly, the second fixing part 4221 is used to fix the second contact strip in the second fixing groove 333. The first contact part 4212 is used to connect with the abutting part 411. When the slider 41 is pushed by an external force, the abutting part 411 pushes the first contact part 4212 to connect with the second contact part 4222, thereby realizing the connection of the circuit. Furthermore, the first pin 4213 and the second pin 4223 are used to make electrical connections with external circuits, so that the contact assembly 4 can be easily made electrical connections with external circuits, effectively improving the convenience and reliability of circuit connection.

[0032] Furthermore, the abutment portion 411 is provided with a recess 4111, the first contact portion 4212 is provided with a protrusion 4214 that matches the recess 4111, and the first cavity 33 is provided with a fixing post 335 for fixing the second contact portion 4222. The fixing post 335 is located on the upper side of the second contact portion 4222. The first fixing portion 4211 and the second fixing portion 4221 are respectively abutted and fixed to the first housing 2, and the first fixing portion 4211 and the second fixing portion 4221 are respectively abutted and fixed to the second housing 3. The matching design of the recessed platform 4111 and the protrusion 4214 effectively improves the connection stability between the first contact portion 4212 and the abutment portion 411. When an external force pushes the slider 41, the recessed platform 4111 of the abutment portion 411 pushes the protrusion 4214 of the first contact portion 4212, causing the first contact portion 4212 to undergo elastic deformation and connect with the second contact portion 4222, thereby realizing the circuit connection. Furthermore, the design of the fixing post 335 provides stable support for the second contact portion 4222, effectively preventing it from... The movement or deformation during the switching operation effectively improves the reliability of the switch. Furthermore, the first fixing part 4211 and the second fixing part 4221 are respectively abutted and fixed to the first housing 2, and the first fixing part 4211 and the second fixing part 4221 are respectively abutted and fixed to the second housing 3. This means that the first housing 2 and the second housing 3 further fix the first fixing part 4211 and the second fixing part 4221, effectively improving the stability and reliability of the first contact strip 421 and the second contact strip 422 in the switch structure.

[0033] Furthermore, the length of the first housing 2 is between 10-15 mm, the width is between 1-2 mm, and the height is between 6-9 mm; the length of the second housing 3 is between 10-15 mm, the width is between 2-4 mm, and the height is between 6-9 mm. The first contact strip 421 and the second contact strip 422 are provided with conductive layers. This design makes the microswitch smaller and suitable for use in smaller electronic devices. The first housing 2 and the second housing 3 employ advanced manufacturing technologies and materials, such as micro-stamping and precision injection molding, to ensure that the microswitch maintains good electrical performance, mechanical stability, and a long service life while being miniaturized, effectively improving the reliability and practicality of the microswitch. Furthermore, by providing conductive layers on the first contact strip 421 and the second contact strip 422, the electrical performance of the microswitch is effectively improved. Specifically, the conductive layer can be a silver layer. Combined with the specifications of the first housing 2 and the second housing 3 described above, within this specification range, the microswitch can be used in a 1.5A 50VAC circuit environment, effectively improving the electrical performance of the microswitch.

[0034] Example 1

[0035] A combined micro switch includes a switch body 1. The switch body 1 includes a first housing 2 and a second housing 3 connected to the first housing 2 at one end. The second housing 3 has a first connecting hole 31 on one side and a first connecting post 32 on the other side. The first connecting hole 31 and the first connecting post 32 are connected to each other so that the other end of the second housing 3 is connected to another second housing 3.

[0036] Furthermore, one side of the first housing 2 is provided with a second connecting hole 21 that mates with the first connecting post 32. There are three first connecting posts 32, and the number of the first connecting holes 31 and the number of the second connecting holes 21 are the same as those of the first connecting posts 32.

[0037] Furthermore, the switch body 1 also includes a control component 4 connected to the second housing 3. The second housing 3 is provided with a first cavity 33 for accommodating the control component 4. The control component 4 includes a slider 41 and a contact component 42 connected to the slider 41. The slider 41 includes an abutment portion 411 connected to the contact component 42 and a lever 412 connected to the abutment portion 411. The second housing 3 is provided with a third connection hole 34 for the lever 412 to extend out. The third connection hole 34 communicates with the first cavity 33.

[0038] Furthermore, the first cavity 33 is provided with a fixing groove 331 for fixing the contact assembly 42. The fixing groove 331 includes a first fixing groove 332 and a second fixing groove 333. The contact assembly 42 includes a first contact strip 421 fixed to the first fixing groove 332 and a second contact strip 422 fixed to the second fixing groove 333. The first contact strip 421 is connected to the abutment portion 411.

[0039] Furthermore, the first contact bar 421 includes a first fixing part 4211 fixed to the first fixing groove 332, a first contact part 4212 connected to the first fixing part 4211, and a first pin 4213 connected to the first fixing part 4211. The second contact bar 422 includes a second fixing part 4221 fixed to the second fixing groove 333, a second contact part 4222 connected to the second fixing part 4221, and a second pin 4223 connected to the second fixing part 4221. The first pin 4213 and the second pin 4223 are electrically connected to an external circuit.

[0040] Furthermore, the abutment portion 411 is provided with a recess 4111, the first contact portion 4212 is provided with a protrusion 4214 that matches the recess 4111, and the first cavity 33 is provided with a fixing post 335 for fixing the second contact portion 4222. The fixing post 335 is located on the upper side of the second contact portion 4222. The first fixing portion 4211 and the second fixing portion 4221 are respectively abutted and fixed to the first housing 2, and the first fixing portion 4211 and the second fixing portion 4221 are respectively abutted and fixed to the second housing 3.

[0041] Furthermore, the first housing 2 has a length of 12mm, a width of 1.5mm, and a height of 7.5mm, the second housing 3 has a length of 12mm, a width of 2.5mm, and a height of 7.5mm, and the first contact strip 421 and the second contact strip 422 are provided with a conductive layer, which is a silver layer.

[0042] Example 2

[0043] Based on Embodiment 1, the second housing 3 is provided with a first protrusion 51 and a snap-fit ​​portion 52 that snaps into the first protrusion 51. The snap-fit ​​portion 52 is provided with a snap hole 53 into which the first protrusion 51 extends. The first protrusion 51 of one second housing 3 is engaged with the snap-fit ​​portion 52 of another second housing 3 to make at least two second housings 3 connected and fixed. The extending direction of the snap-fit ​​portion 52 is the same as the extending direction of the first connecting post 32.

[0044] Furthermore, the first housing 2 is provided with a second protrusion 23 that engages with the snap-fit ​​portion 52, and the second protrusion 23 matches the snap-fit ​​hole 53. The first housing 2 and the second housing 3 are respectively provided with a fourth fixing groove 24 and a third fixing groove 54 that cooperate with the snap-fit ​​portion 52. The first protrusion 51 is located in the third fixing groove 54, and the second protrusion 23 is located in the fourth fixing groove 24.

[0045] Furthermore, both the first protrusion 51 and the second protrusion 23 are provided with guide portions 511, and the number of snap-fit ​​portions 52 is the same as that of the first protrusion 51, and the number of snap-fit ​​portions 52 is two.

[0046] Example 3

[0047] Unlike Embodiment 2, there are two first connecting posts 32 and three snap-fit ​​parts 52.

[0048] Example 4

[0049] Unlike Embodiment 1, the number of the first connecting posts 32 is four.

[0050] Example 5

[0051] Unlike Embodiment 2, the number of the snap-fit ​​parts 52 is four.

[0052] Example 6

[0053] Unlike Embodiment 2, the first housing 2 has a length of 10mm, a width of 1mm, and a height of 6mm, while the second housing 3 has a length of 10mm, a width of 2mm, and a height of 6mm.

[0054] Example 7

[0055] Unlike Embodiment 2, the first housing 2 has a length of 15mm, a width of 2mm, and a height of 9mm, while the second housing 3 has a length of 15mm, a width of 4mm, and a height of 9mm.

[0056] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A combined micro switch, comprising a switch body (1), characterized in that, The switch body (1) includes a first housing (2) and a second housing (3) connected to the first housing (2) at one end. The second housing (3) has a first connecting hole (31) on one side and a first connecting post (32) on the other side. The first connecting hole (31) and the first connecting post (32) are connected to each other so that the other end of the second housing (3) is connected to another second housing (3). The switch body (1) also includes a control component (4) connected to the second housing (3). The second housing (3) has a first cavity (33) for accommodating the control component (4). The control component (4) includes a slider (41) and a contact component (42) connected to the slider (41). The slider (41) includes an abutment (411) connected to the contact component (42) and a lever (412) connected to the abutment (411). The second housing (3) has a third connecting hole (34) for the lever (412) to extend out. The third connecting hole (34) communicates with the first cavity (33). The first cavity (33) is provided with a fixing groove (331) for fixing the contact assembly (42). The fixing groove (331) includes a first fixing groove (332) and a second fixing groove (333). The contact assembly (42) includes a first contact strip (421) fixed to the first fixing groove (332) and a second contact strip (422) fixed to the second fixing groove (333). The first contact strip (421) is connected to the abutment part (411).

2. The combined micro switch according to claim 1, characterized in that, The first housing (2) has a second connecting hole (21) on one side that cooperates with the first connecting post (32). The number of the first connecting posts (32) is at least two, and the number of the first connecting hole (31) and the number of the second connecting hole (21) are the same as those of the first connecting post (32).

3. A combined micro switch according to claim 1, characterized in that, The second housing (3) is provided with a first protrusion (51) and a snap-fit ​​portion (52) that snaps into the first protrusion (51). The snap-fit ​​portion (52) is provided with a snap hole (53) into which the first protrusion (51) extends. The first protrusion (51) of one second housing (3) is connected to the snap-fit ​​portion (52) of another second housing (3) so that at least two second housings (3) are connected and fixed. The extension direction of the snap-fit ​​portion (52) is the same as the extension direction of the first connecting post (32).

4. A combined micro switch according to claim 3, characterized in that, The first housing (2) is provided with a second protrusion (23) that engages with the snap-fit ​​part (52). The second protrusion (23) matches the snap-fit ​​hole (53). The first housing (2) and the second housing (3) are respectively provided with a fourth fixing groove (24) and a third fixing groove (54) that cooperate with the snap-fit ​​part (52). The first protrusion (51) is located in the third fixing groove (54), and the second protrusion (23) is located in the fourth fixing groove (24).

5. A combined micro switch according to claim 4, characterized in that, The first protrusion (51) and the second protrusion (23) are both provided with guide portions (511), and the number of snap-fit ​​portions (52) is the same as that of the first protrusion (51), and the number of snap-fit ​​portions (52) is at least two.

6. A combined micro switch according to claim 1, characterized in that, The first contact bar (421) includes a first fixing part (4211) fixed to the first fixing groove (332), a first contact part (4212) connected to the first fixing part (4211), and a first pin (4213) connected to the first fixing part (4211). The second contact bar (422) includes a second fixing part (4221) fixed to the second fixing groove (333), a second contact part (4222) connected to the second fixing part (4221), and a second pin (4223) connected to the second fixing part (4221). The first pin (4213) and the second pin (4223) are electrically connected to an external circuit.

7. A combined micro switch according to claim 6, characterized in that, The abutment part (411) is provided with a recess. (4111), the first contact part (4212) is provided with a boss (4214) that matches the recess (4111), and the first cavity (33) is provided with a fixing post (335) for fixing the second contact part (4222). The fixing post (335) is located on the upper side of the second contact part (4222). The first fixing part (4211) and the second fixing part (4221) are respectively abutted and fixed to the first housing (2), and the first fixing part (4211) and the second fixing part (4221) are respectively abutted and fixed to the second housing (3).

8. A combined micro switch according to claim 1, characterized in that, The length of the first housing (2) is The length of the second housing (3) is between 10-15 mm, the width is between 1-2 mm, and the height is between 6-9 mm. The length of the second housing (3) is between 10-15 mm, the width is between 2-4 mm, and the height is between 6-9 mm. The first contact strip (421) and the second contact strip (422) are provided with conductive layers.

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