Press-resistant miniature touch switch

Abstract

The utility model relates to the technical field of touch switches, in particular to a press-resistant miniature touch switch. The utility model relates to a press-resistant miniature touch switch, which comprises a metal outer cover shell, the micro touch switch assembly is arranged at the bottom of the metal outer casing and comprises a plastic pressing handle arranged at the top; the middle of the plastic upper seat is hollowed out to form a communication containing opening, the plastic upper seat is arranged in the metal outer cover shell, the bottom of the plastic upper seat abuts against the top of the micro touch switch assembly, and the plastic pressing handle is right opposite to the communication containing opening; the plastic pressing handle comprises a pressing part and a limiting part arranged at the bottom of the pressing part, the pressing part extends out of the communicating containing opening, and the pressing part is located at the top of the plastic pressing handle and right faces the plastic pressing handle; and the limiting part is used for preventing the pressing part from running out of the direction from the communication accommodating opening to the top of the plastic upper seat. According to the scheme, the pressing convenience and the overall firmness degree of the touch switch are improved, and the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of light touch switches, in particular to a pressure-resistant micro light touch switch. Background Art

[0002] The Chinese utility model with publication number CN217933535U discloses a miniature side-press waterproof touch switch which is easy to install. By providing a mounting block, the switch can be quickly installed, thereby improving the efficiency of the switch during installation.

[0003] However, the above patent still has the following shortcomings: it is not easy to press and trigger the micro touch switch, the firmness is not high, the pressing strength is not enough, and the service life is short. Utility Model Content

[0004] The purpose of the utility model is to provide a pressure-resistant micro touch switch to address the deficiencies of the prior art, aiming to improve the convenience of pressing and the overall firmness of the touch switch, so as to increase the overall service life.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a pressure-resistant micro-touch switch, comprising: a metal outer shell, a micro-touch switch assembly, a plastic upper seat and a plastic handle. Among them:

[0006] Metal outer casing;

[0007] A micro touch switch assembly, the micro touch switch assembly is arranged at the bottom of the metal outer shell, and the micro touch switch assembly includes a plastic handle arranged at the top;

[0008] A plastic upper seat, wherein the middle of the plastic upper seat is hollowed out to form a communication accommodating opening, the plastic upper seat is arranged in the metal outer shell, the bottom of the plastic upper seat is against the top of the micro touch switch assembly, and the plastic handle is directly opposite to the communication accommodating opening;

[0009] A plastic push handle, the plastic push handle includes a pressing portion and a limiting portion arranged at the bottom of the pressing portion, the pressing portion is inserted into the connecting accommodating port from the bottom of the plastic upper seat and extends out of the connecting accommodating port from the top of the plastic upper seat, the pressing portion is located at the top of the plastic push handle and is opposite to the plastic push handle, and the limiting portion is used to limit the pressing portion to prevent the pressing portion from running out from the connecting accommodating port toward the top of the plastic upper seat.

[0010] As a further solution of the utility model: the top two sides of the plastic upper seat are respectively provided with first limiting notches, the top of the metal outer shell is provided with a bending limiting buckle buried in the first limiting notches, the communicating accommodating port includes an accommodating chamber at the lower end and a communicating port at the upper end, the pressing portion is inserted from the accommodating chamber to and extends out of the communicating port, and the limiting portion is arranged in the accommodating chamber and is clamped at one end of the communicating port close to the accommodating chamber. Specifically, Fig. 9 and Figure 2 As shown, when the plastic handle is installed into the plastic upper seat, the bending limit buckle on the metal outer cover shell is bent so that the bending limit buckle is buried and pressed against the first limit notch, thereby making the entire press-resistant micro touch switch more secure. In addition, the provision of the plastic upper seat, on the one hand, can better accommodate and install the plastic handle; on the other hand, it can also increase the overall height of the press-resistant micro touch switch to be suitable for more complex use environments and to adapt to more size specifications. Specifically, the plastic handle is prevented from falling off due to the limiting portion passing through the connecting port. Furthermore, the pressing portion is limited by the limiting portion to prevent the pressing portion from running out from the connecting accommodating port toward the top of the plastic upper seat. The firmness and service life of the press-resistant micro touch switch are further improved.

[0011] As a further solution of the utility model: the micro touch switch assembly further includes: a base, a metal spring and a waterproof film. Among them:

[0012] A base, wherein a receiving groove is provided on the top of the base;

[0013] A metal spring, the metal spring being placed in the receiving groove;

[0014] A waterproof film, which is arranged on the top of the metal spring;

[0015] The plastic handle is installed on the top of the metal spring, the waterproof film is provided with a button-shaped recessed portion matching the plastic handle, the waterproof film is covered on the receiving groove, and the button-shaped recessed portion is wrapped around the plastic handle. Thus, the pressing convenience, pressing resistance and firmness of the press-resistant micro touch switch are further improved, thereby effectively improving the overall service life.

[0016] As a further solution of the utility model: the base is provided with a second limiting notch on both sides, and the bottom of the plastic upper base is provided with limiting protrusions matching and embedded in the second limiting notch on both sides, thereby further strengthening the overall firmness of the touch switch and effectively improving the overall service life.

[0017] As a further solution of the utility model: the metal springs are provided with no less than 2 and stacked on each other. Preferably, the metal springs are preferably 3 and stacked on each other. Thus, the pressing strength of the press-resistant micro-touch switch is further improved, thereby effectively improving the overall service life of the press-resistant micro-touch switch.

[0018] As a further solution of the utility model: a metal terminal is embedded inside the base, thereby further improving the pressing convenience, pressing strength and firmness of the pressure-resistant micro touch switch, thereby effectively improving the overall service life of the pressure-resistant micro touch switch.

[0019] As a further solution of the utility model: a side of the base away from the receiving groove is provided with a plastic inlet for injection molding. Specifically, it is easy to process by injection molding, so it is easy to mass produce, improve production efficiency, and reduce production costs. Furthermore, the pressure resistance of the pressure-resistant micro-touch switch is further improved, thereby effectively improving the overall service life of the pressure-resistant micro-touch switch.

[0020] As a further solution of the utility model: a first guide opening and a second guide opening are respectively formed on the same side of two ends of the base, and the metal terminal has a first contact extending from the first guide opening and a second contact extending from the second guide opening.

[0021] As a further solution of the utility model: the outer edge of the waterproof film is laser welded to the top surface of the base, and a first laser welding edge is formed;

[0022] The plastic button handle is laser welded to the inner top wall of the button-shaped recessed portion and forms a second laser welding edge.

[0023] As a further solution of the utility model: a first oblique embedded part and a second oblique embedded part are respectively provided on both sides of the second limiting notch, the first oblique embedded part and the second oblique embedded part surround the second limiting notch to form an outward drafting structure, the first oblique embedded part and the second oblique embedded part are respectively provided with a first spring opening on the inclined surfaces, and the first oblique embedded part and the second oblique embedded part are respectively provided with limiting guide hooks at both ends;

[0024] A third oblique embedded portion and a fourth oblique embedded portion are respectively provided on both sides of the limiting protrusion, the third oblique embedded portion matches the first oblique embedded portion, the fourth oblique embedded portion matches the second oblique embedded portion, the inclined surface of the third oblique embedded portion and the inclined surface of the fourth oblique embedded portion are respectively provided with a second spring opening opposite to the first spring opening, and the inclined surface of the third oblique embedded portion and the two ends of the fourth oblique embedded portion are respectively provided with a limiting guide groove matching the limiting guide hook;

[0025] The base is also provided with a preload spring for inserting into the first spring opening and / or the second spring opening.

[0026] Beneficial effects of the utility model:

[0027] In this solution, a metal outer cover is provided to wrap and accommodate the micro touch switch assembly and the plastic upper seat, and the plastic upper seat is placed against the top of the micro touch switch assembly, and the plastic handle of the micro touch switch assembly is directly opposite to the connecting receiving port of the plastic upper seat, and the plastic handle is also accommodated in the connecting receiving port of the plastic upper seat, so that the plastic handle is directly opposite to the plastic handle of the micro touch switch assembly below, so that by pressing the plastic handle, the plastic handle of the micro touch switch assembly can be pressed, thereby triggering the conduction of the micro touch switch. On the one hand, by pressing the plastic handle to indirectly trigger the plastic handle, the convenience of pressing is improved; on the other hand, the plastic handle is accommodated in the connecting receiving port of the plastic upper seat, and compared with directly pressing the plastic handle, the stability and pressing resistance of the plastic handle are high. On the other hand, by adding a metal outer cover to wrap the micro touch switch assembly and the plastic upper seat, the overall firmness of the touch switch is improved, and the overall pressure resistance of the micro touch switch is further improved, and the service life is long. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the overall structure of the pressure-resistant micro touch switch of the utility model.

[0029] Figure 2 The figure is a schematic diagram of the structural decomposition of the pressure-resistant micro-tact switch of the utility model.

[0030] Figure 3 It is a schematic diagram of the structural decomposition of the micro touch switch assembly of the utility model.

[0031] Figure 4 It is a schematic diagram of the structural decomposition of the base of the micro touch switch assembly of the utility model.

[0032] Figure 5 The micro touch switch assembly of the utility model is a structural schematic diagram showing a first laser welding edge and a second laser welding edge.

[0033] Figure 6 for Figure 5 A schematic diagram of the structure of the micro touch switch assembly flipped to another viewing angle.

[0034] Figure 7 The figure is a schematic cross-sectional structure diagram of the pressure-resistant micro touch switch of the utility model.

[0035] Figure 8 The utility model is a cross-sectional assembly diagram of the miniature touch switch assembly being installed into the metal outer housing.

[0036] Fig. 9 The cross-sectional assembly diagram of the plastic handle being installed into the plastic upper seat is shown in FIG. Figure 8 A complete cross-sectional assembly diagram of the pressure-resistant miniature touch switch that is assembled again on the basis of.

[0037] Fig.10 It is a structural schematic diagram of another embodiment between the limiting protrusion and the second limiting notch.

[0038] Reference numerals include:

[0039] 1—Metal outer shell,

[0040] 11—bending limit buckle;

[0041] 2—Micro touch switch assembly,

[0042] 21—base, 22—metal spring, 23—plastic handle, 24—waterproof film, 25—metal terminal, 26—preload spring,

[0043] 211 - receiving groove, 212 - second limiting notch, 213 - glue inlet, 214 - first guide port, 215 - second guide port,

[0044] 2121—first oblique embedded portion, 2122—second oblique embedded portion, 2123—first spring opening, 2124—limiting guide hook,

[0045] 241 - button-shaped recessed portion, 242 - first laser welding edge, 243 - second laser welding edge,

[0046] 251—first contact, 252—second contact;

[0047] 3—Plastic upper seat,

[0048] 31 - communication accommodating opening, 32 - first limiting notch, 33 - limiting convex,

[0049] 331 - third oblique embedded portion, 332 - fourth oblique embedded portion, 333 - second spring opening, 334 - limiting guide groove,

[0050] 311—accommodation chamber, 312—communication port;

[0051] 4—Plastic handle,

[0052] 41 - pressing portion, 42 - limiting portion. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] like Figure 1 to Figure 10 As shown, in an embodiment of the utility model, a pressure-resistant micro-touch switch is provided, comprising: a metal outer shell 1, a micro-touch switch assembly 2, a plastic upper seat 3 and a plastic handle 4. Among them:

[0056] A micro touch switch assembly 2, wherein the micro touch switch assembly 2 is arranged at the bottom of the metal outer shell 1, and the micro touch switch assembly 2 includes a plastic handle 4 arranged at the top;

[0057] A plastic upper seat 3, wherein a communication receiving opening 31 is hollowed out in the middle of the plastic upper seat 3, the plastic upper seat 3 is disposed in the metal outer shell 1, the bottom of the plastic upper seat 3 is against the top of the micro touch switch assembly 2, and the plastic handle 4 is directly opposite to the communication receiving opening 31;

[0058] The plastic push handle 4 includes a pressing portion 41 and a limiting portion 42 arranged at the bottom of the pressing portion 41. The pressing portion 41 is inserted into the communication accommodating port 31 from the bottom of the plastic upper seat 3 and extends from the top of the plastic upper seat 3 to the communication accommodating port 31. The pressing portion 41 is located at the top of the plastic push handle 4 and is directly opposite to the plastic push handle 4. The limiting portion 42 is used to limit the pressing portion 41 to prevent the pressing portion 41 from running out from the communication accommodating port 31 toward the top of the plastic upper seat 3.

[0059] In this solution, a metal outer shell 1 is provided to wrap and accommodate the micro touch switch assembly 2 and the plastic upper seat 3, and the plastic upper seat 3 is placed on the top of the micro touch switch assembly 2, and the plastic handle 4 of the micro touch switch assembly 2 is directly opposite to the connecting accommodating port 31 of the plastic upper seat 3, and the plastic handle 4 is accommodated in the connecting accommodating port 31 of the plastic upper seat 3, so that the plastic handle 4 is directly opposite to the plastic handle 4 of the micro touch switch assembly 2 below, so that by pressing the plastic handle 4, the plastic handle 4 of the micro touch switch assembly 2 can be pressed, thereby triggering the conduction of the micro touch switch. On the one hand, by pressing the plastic handle 4 to indirectly trigger the plastic handle 4, the convenience of pressing is improved; on the other hand, the plastic handle 4 is accommodated in the connecting accommodating port 31 of the plastic upper seat 3, and compared with directly pressing the plastic handle 4, the stability and pressing resistance of the plastic handle 4 are high. On the other hand, by adding a metal outer cover shell 1 to wrap the micro touch switch assembly 2 and the plastic upper seat 3, the overall firmness of the touch switch is improved, and the overall pressing strength of the micro touch switch is further improved, and the service life is long.

[0060] In one embodiment, Figure 2 As shown, first limiting notches 32 are respectively provided on both sides of the top of the plastic upper seat 3, and a bending limiting buckle 11 embedded in the first limiting notches 32 is provided on the top of the metal outer shell 1. Fig. 9 and Figure 2 As shown, when the plastic handle 4 is installed in the plastic upper seat 3, the bending limit buckle 11 on the metal outer shell 1 is bent, so that the bending limit buckle 11 is buried and pressed against the first limit notch 32, so that the entire press-resistant micro touch switch is more secure. In addition, the setting of the plastic upper seat 3, on the one hand, can better accommodate and install the plastic handle 4; on the other hand, it can also increase the overall height of the press-resistant micro touch switch to be suitable for more complex use environments and adapt to more size specifications.

[0061] like Figure 7 and Fig. 9As shown, the communication receiving opening 31 includes a receiving chamber 311 at the lower end and a communication opening 312 at the upper end, the pressing portion 41 is inserted from the receiving chamber 311 to and extends out of the communication opening 312, and the limiting portion 42 is disposed in the receiving chamber 311 and is stuck at one end of the communication opening 312 close to the receiving chamber 311. Specifically, the limiting portion 42 is prevented from passing through the communication opening 312 and causing the plastic handle 4 to fall. Furthermore, the pressing portion 41 is limited by the limiting portion 42 to prevent the pressing portion 41 from running out from the communication receiving opening 31 toward the top of the plastic upper seat 3. The firmness and service life of the press-resistant micro touch switch are further improved.

[0062] In another embodiment, Figure 3 , Figure 7 and Figure 8 As shown, the micro touch switch assembly 2 further includes: a base 21, a metal spring 22 and a waterproof film 24. Among them:

[0063] A base 21, wherein a receiving groove 211 is provided on the top of the base 21;

[0064] A metal spring 22, wherein the metal spring 22 is placed in the receiving groove 211;

[0065] A waterproof film 24, which is disposed on the top of the metal spring sheet 22;

[0066] The plastic handle 4 is mounted on the top of the metal spring 22, the waterproof film 24 is provided with a button-shaped recess 241 matching the plastic handle 4, the waterproof film 24 covers the receiving groove 211, and the button-shaped recess 241 wraps the plastic handle 4. Thus, the pressing convenience, pressing resistance and firmness of the press-resistant micro touch switch are further improved, thereby effectively improving the overall service life.

[0067] In yet another embodiment, Figure 2~Figure 6 As shown, the base 21 is provided with second limiting notches 212 on both sides, and the bottom of the plastic upper base 3 is provided with limiting protrusions 33 matching and embedded in the second limiting notches 212. Thus, the overall firmness of the touch switch is further enhanced, thereby effectively improving the overall service life.

[0068] In yet another embodiment, Figure 3 and Figure 7 As shown, the metal spring pieces 22 are provided with no less than two and stacked on each other. Preferably, the metal spring pieces 22 are preferably three and stacked on each other. Thus, the pressing strength of the press-resistant micro touch switch is further improved, thereby effectively improving the overall service life of the press-resistant micro touch switch.

[0069] In another embodiment, if Figure 3 and Figure 7 As shown, a metal terminal 25 is embedded in the base 21. Thus, the pressing convenience, pressing strength and firmness of the pressure-resistant micro touch switch are further improved, thereby effectively improving the overall service life of the pressure-resistant micro touch switch.

[0070] In another embodiment, as shown in FIG*, a side of the base 21 away from the receiving groove 211 is provided with a plastic inlet 213 for injection molding. Specifically, it is easy to perform injection molding, thereby facilitating mass production, improving production efficiency, and reducing production costs. Furthermore, the pressing strength of the press-resistant micro touch switch is further improved, thereby effectively improving the overall service life of the press-resistant micro touch switch.

[0071] In another embodiment, if Figure 4 As shown, the two ends of the base 21 are respectively formed with a first guide opening 214 and a second guide opening 215 on the same side, and the metal terminal 25 has a first contact 251 extending from the first guide opening 214 and a second contact 252 extending from the second guide opening 215. Specifically, the first guide opening 214 and the second guide opening 215 are both arranged on the same side of the base 21, so that the first contact 251 and the second contact 252 are distributed on the same side, and then, it is easy to bend the first contact 251 extending from the first guide opening 214 and the second contact 252 extending from the second guide opening 215 at the same time, so that the first contact 251 and the second contact 252 are both closely attached to the side wall of the same side of the base 21, reducing safety hazards, and effectively improving the overall aesthetics and coordination of the anti-press type micro touch switch, and the firmness is higher, thereby effectively improving the overall service life of the anti-press type micro touch switch.

[0072] In another embodiment, if Figure 5 As shown, the outer edge of the waterproof film 24 is laser welded to the top surface of the base 21, and a first laser welding edge 242 is formed;

[0073] The plastic button handle 4 is laser welded to the inner top wall of the button-shaped recessed portion 241, and a second laser welding edge 243 is formed. Thus, the pressing convenience, pressing strength and firmness of the press-resistant micro touch switch are further improved, thereby effectively improving the overall service life of the press-resistant micro touch switch.

[0074] In another embodiment, if Fig.10As shown, the two sides of the second limiting notch 212 are respectively provided with a first oblique embedded portion 2121 and a second oblique embedded portion 2122, the first oblique embedded portion 2121 and the second oblique embedded portion 2122 surround the second limiting notch 212 to form an outward drafting structure, the first oblique embedded portion 2121 and the second oblique embedded portion 2122 are respectively provided with a first spring opening 2123 on the inclined surface, and the first oblique embedded portion 2121 and the second oblique embedded portion 2122 are respectively provided with a limiting guide hook 2124 at both ends;

[0075] A third oblique embedded portion 331 and a fourth oblique embedded portion 332 are respectively provided on both sides of the limiting protrusion 33, the third oblique embedded portion 331 matches the first oblique embedded portion 2121, the fourth oblique embedded portion 332 matches the second oblique embedded portion 2122, the inclined surface of the third oblique embedded portion 331 and the inclined surface of the fourth oblique embedded portion 332 are respectively provided with a second spring opening 333 opposite to the first spring opening 2123, and the inclined surface of the third oblique embedded portion 331 and the two ends of the fourth oblique embedded portion 332 are respectively provided with a limiting guide groove 334 matching the limiting guide hook 2124;

[0076] The base 21 is also provided with a preload spring 26 for inserting into the first spring opening 2123 and / or the second spring opening 333. Specifically, one end of the preload spring 26 is inserted into the first spring opening 2123. When the plastic upper base 3 is placed on the top of the micro touch switch assembly 2, the limiting protrusion 33 on the plastic upper base 3 is embedded in the second limiting notch 212 on the base 21. The second spring opening 333 is aligned with and inserted into the other end of the preload spring 26. When the bending limiting buckle 11 on the metal outer shell 1 is bent and fastened to the first limiting notch 32 on the top of the plastic upper base 3, the preload spring 26 is compressed by the downward pressure of the limiting protrusion 33 and generates sufficient preload force. In addition, the overall structure is more compact and not easy to loosen, and loosening caused by gaps generated by processing errors is avoided.

[0077] When assembling: Figure 3 , Figure 5 and Figure 6, first assemble the micro touch switch assembly 2 and prepare it as a whole. Specifically, first embed the metal terminal 25 into the base 21, and the first contact 251 and the second contact 252 of the metal terminal 25 extend from the first guide port 214 and the second guide port 215 on the base 21 respectively. Then, press the first contact 251 and the second contact 252 tightly so that the first contact 251 and the second contact 252 are respectively attached to the outer wall of the base 21; then stack the three metal springs 22 together and put them into the receiving groove 211 on the base 21, and then install the plastic handle 4 on the top metal spring 22, and then laser weld the waterproof film 24 to cover the receiving groove 211 to form a first laser welding edge 242. In addition, the button-shaped recessed portion 241 of the waterproof film 24 is aligned with and wrapped around the plastic handle 4, and then laser welded to form a Figure 5 The second laser welding edge 243 of the plastic button handle 4 can also be installed in the button-shaped recessed portion 241 of the waterproof film 24 by laser welding first, and then the waterproof film 24 is buckled on the top surface of the base 21 and sealed on the receiving groove 211. When the waterproof film 24 is buckled, the plastic button handle 4 faces downward until the plastic button handle 4 is against the top metal spring 22, and then the waterproof film 24 is installed on the base 21 by laser welding.

[0078] After the micro touch switch assembly 2 is assembled, Figure 8 , the metal outer shell 1 is made, and the bending limit buckle 11 on the metal outer shell 1 is upright at this time to avoid occupying the top opening of the metal outer shell 1 and affecting the placement of other components into the metal outer shell 1. After the metal outer shell 1 is prepared, the entire micro touch switch assembly 2 is placed inside the metal outer shell 1 until it touches the bottom wall of the metal outer shell 1. Fig. 9 The left part of the plastic upper seat 3, the communicating accommodating opening 31 of the plastic upper seat 3 includes a lower accommodating chamber 311 and an upper communicating opening 312, firstly insert the pressing portion 41 of the plastic handle 4 from the accommodating chamber 311 to and extend out of the communicating opening 312, and then refer to Fig. 9 On the right side of the plastic upper seat 3, the plastic button handle 4 is placed into the metal outer cover shell 1 on which the micro touch switch assembly 2 is installed, wherein the limiting protrusion 33 at the bottom of the plastic upper seat 3 is inserted into the second limiting notch 212 on the base 21. Finally, the multiple bending limiting buckles 11 on the metal outer cover shell 1 are bent toward the direction of the plastic button handle 4 until the bending limiting portion 42 is buried and pressed against the first limiting notch 32 of the plastic upper seat 3.

[0079] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-resistant micro touch switch, characterized in that: include: Metal outer casing (1); A micro touch switch assembly (2), the micro touch switch assembly (2) being arranged at the bottom of the metal outer shell (1), the micro touch switch assembly (2) comprising a plastic handle (4) arranged at the top; A plastic upper seat (3), wherein the middle of the plastic upper seat (3) is hollowed out to form a communication receiving opening (31), the plastic upper seat (3) is arranged in the metal outer shell (1), the bottom of the plastic upper seat (3) abuts against the top of the micro touch switch assembly (2), and the plastic handle (4) is directly opposite to the communication receiving opening (31); and A plastic push handle (4), the plastic push handle (4) comprising a pressing portion (41) and a limiting portion (42) arranged at the bottom of the pressing portion (41), the pressing portion (41) being inserted into the communicating accommodating opening (31) from the bottom of the plastic upper seat (3) and extending out of the communicating accommodating opening (31) from the top of the plastic upper seat (3), the pressing portion (41) being located at the top of the plastic push handle (4) and facing the plastic push handle (4), the limiting portion (42) being used to limit the pressing portion (41) to prevent the pressing portion (41) from running out from the communicating accommodating opening (31) toward the top of the plastic upper seat (3).

2. The pressure-resistant micro touch switch according to claim 1, characterized in that: The top sides of the plastic upper seat (3) are respectively provided with first limiting notches (32); the top of the metal outer cover shell (1) is provided with a bent limiting buckle (11) buried in the first limiting notch (32); the communicating accommodating opening (31) comprises a accommodating chamber (311) at the lower end and a communicating opening (312) at the upper end; the pressing portion (41) is inserted from the accommodating chamber (311) toward and extends out of the communicating opening (312); the limiting portion (42) is arranged in the accommodating chamber (311) and is clamped at one end of the communicating opening (312) close to the accommodating chamber (311).

3. The pressure-resistant micro touch switch according to claim 1, characterized in that: The micro touch switch assembly (2) further comprises: A base (21), wherein a receiving groove (211) is provided on the top of the base (21); A metal spring (22), the metal spring (22) being placed in the receiving groove (211); and A waterproof film (24), the waterproof film (24) being arranged on top of the metal spring sheet (22); The plastic button handle (4) is mounted on the top of the metal spring sheet (22), the waterproof film (24) is provided with a button-shaped recessed portion (241) matching the plastic button handle (4), the waterproof film (24) covers the receiving groove (211), and the button-shaped recessed portion (241) wraps around the plastic button handle (4).

4. The pressure-resistant micro touch switch according to claim 3, characterized in that: Second limiting notches (212) are respectively provided on both sides of the base (21), and limiting protrusions (33) matching the second limiting notches (212) and embedded in the second limiting notches (212) are respectively provided on both sides of the bottom of the plastic upper seat (3).

5. The pressure-resistant micro touch switch according to claim 3, characterized in that: The metal spring sheets (22) are provided in at least two pieces and are stacked on top of each other.

6. The pressure-resistant micro touch switch according to claim 3, characterized in that: A metal terminal (25) is embedded inside the base (21).

7. The pressure-resistant micro touch switch according to claim 6, characterized in that: A glue inlet (213) for injection molding is provided on a side of the base (21) away from the accommodating groove (211).

8. The pressure-resistant micro touch switch according to claim 6, characterized in that: A first guide opening (214) and a second guide opening (215) are respectively formed on the same side at both ends of the base (21), and the metal terminal (25) has a first contact point (251) extending from the first guide opening (214) and a second contact point (252) extending from the second guide opening (215).

9. The pressure-resistant micro touch switch according to claim 3, characterized in that: The outer edge of the waterproof film (24) is laser welded to the top surface of the base (21), and a first laser welding edge (242) is formed; The plastic button handle (4) is laser welded to the inner top wall of the button-shaped recessed portion (241), and a second laser welding edge (243) is formed.

10. The pressure-resistant micro touch switch according to claim 4, characterized in that: A first oblique embedded portion (2121) and a second oblique embedded portion (2122) are respectively provided on both sides of the second limiting notch (212); the first oblique embedded portion (2121) and the second oblique embedded portion (2122) surround the second limiting notch (212) to form an outward drafting structure; first spring openings (2123) are respectively provided on the oblique surfaces of the first oblique embedded portion (2121) and the second oblique embedded portion (2122); and limiting guide hooks (2124) are respectively provided at both ends of the first oblique embedded portion (2121) and the second oblique embedded portion (2122); A third oblique embedded portion (331) and a fourth oblique embedded portion (332) are respectively provided on both sides of the limiting protrusion (33), the third oblique embedded portion (331) matches the first oblique embedded portion (2121), the fourth oblique embedded portion (332) matches the second oblique embedded portion (2122), the inclined surface of the third oblique embedded portion (331) and the inclined surface of the fourth oblique embedded portion (332) are respectively provided with a second spring opening (333) opposite to the first spring opening (2123), and the inclined surface of the third oblique embedded portion (331) and the two ends of the fourth oblique embedded portion (332) are respectively provided with a limiting guide groove (334) matching the limiting guide hook (2124); The base (21) is also provided with a preload spring (26) for inserting into the first spring opening (2123) and / or the second spring opening (333).

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