Ultrathin waterproof switch

Abstract

The utility model relates to an ultrathin waterproof switch, which comprises a shell, a base arranged in the shell, two terminals arranged on the base, a press spring arranged in a sliding manner, and a contact piece arranged on the press spring and capable of being contacted with the terminals, a reset spring is arranged at the bottom of the press spring, and the reset spring abuts against the base; the periphery of the pressing part is sleeved with a sealing ring, one end of the sealing ring is connected to the pressing part, and the other end of the sealing ring is connected to the shell; the pressing part is located outside the shell, the sliding part is clamped in the shell in a sliding mode, the connecting part is located inside the shell, the section of the pressing part is in an oval shape or a long circle shape, the contact piece is riveted to the connecting part in a hot melting mode, a riveting column is arranged on the connecting part, and the pressing part is connected with the contact piece in a riveting mode. And the contact piece is provided with a riveting groove matched with the riveting column. According to the utility model, the cross section of the pressing part of the pressing pawl is elliptical or oblong, so that the overall design of the switch can take the thickness of the pressing part as a reference, and the ultrathin structure design of the switch is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the switch field, specifically, especially, it relates to a kind of super thin waterproof switch. BACKGROUND

[0002] With the continuous miniaturization and light weight of electronic equipment, such as household appliances, automotive electronics etc., its internal space also becomes extremely limited, and the switch design volume for controlling the on-off of electronic equipment also needs to be reduced, and small switch can effectively save the occupied space of equipment. In order to ensure sufficient stability and good pressing feeling, the thickness of the switch on the market is more than 5mm. With the increasing demand for thinner switches on the market, how to design a super thin switch with a thickness less than 3mm while ensuring its structural strength has become a problem to be solved. SUMMARY

[0003] Therefore, the utility model provides a super thin waterproof switch with a thickness less than 3mm and good structural strength.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A super thin waterproof switch, comprising a housing, a base disposed in the housing, two terminals disposed on the base, an elastic and slidable push button, and a contact sheet disposed on the push button and contactable with the terminals; a sealing ring is provided around the outer periphery of the push button, one end of the sealing ring is connected to the push button, and the other end is connected to the housing; the push button comprises a pressing portion outside the housing, a sliding portion slidingly disposed in the housing, and a connecting portion inside the housing, the cross section of the pressing portion is oval or oblong, the contact sheet is hot riveted to the connecting portion, the connecting portion is provided with a riveting column, and the contact sheet is provided with a riveting groove matched with the riveting column.

[0006] In the above technical solution, on the one hand, by setting a sealing ring between the housing and the push button, water is effectively prevented from penetrating into the switch from the outside, so that the switch can work normally and stably for a long time even in humid or underwater environment.

[0007] In another aspect, the pressing portion cross section is oval or oblong, so that the overall design of the switch can be based on the thickness of the pressing portion, realizing the ultra-thin structure design of the switch, and the overall thickness can be reduced to 2.7 mm, not only saving the installation space, but also improving the appearance and integration of the product, and being more suitable for electronic equipment with strict space requirements. In addition, the reduction of the switch volume will bring instability to the internal elements such as the contact sheet connection, therefore, the contact sheet is fixed to the connecting portion of the pressing portion by hot riveting, and the structure design of the additional riveting column and riveting groove can effectively improve the connection stability of the contact sheet and the connecting portion, thereby ensuring the pressing stability of the switch as a whole, and effectively reducing the problem of poor contact caused by vibration or long-term use.

[0008] Optionally, in a possible implementation, the contact sheet comprises a main sheet body and clamps symmetrically arranged on opposite sides of the main sheet body, the two clamps correspondingly clamp the two terminals, and the riveting groove is located on the main sheet body.

[0009] In the above technical solution, the contact sheet is installed on the connecting portion through the main sheet body, the clamps on opposite sides of the main sheet body can clamp the two terminals respectively and can slide along the terminals, and the contact sheet controls the on-off of the circuit by sliding along the terminals. At the same time, since the clamps have a certain clamping force, the contact between the clamps and the terminals is also more stable, and the pressing feeling of the pressing portion can be further improved.

[0010] Optionally, in a possible implementation, the connecting portion is provided with a mounting groove, the contact sheet is arranged in the mounting groove, the riveting column is located in the mounting groove, and the riveting groove abuts against the outer periphery of the riveting column.

[0011] In the above technical solution, the design of the mounting groove provides a clear positioning point for the contact sheet, making the assembly process more intuitive and efficient, and the design of the mounting groove allows the contact sheet to be tightly embedded into the connecting portion, thereby maximizing the use of limited space. In addition, the riveting groove is in close abutment with the outer periphery of the riveting column, so that when the contact sheet is hot riveted, the riveting column can support the side of the main sheet body, thereby improving its stability.

[0012] Optionally, in a possible implementation, the riveting column and the riveting groove are correspondingly arranged in plurality, and the plurality of riveting columns are arranged in a ring shape.

[0013] In the above technical solution, the plurality of riveting columns arranged in a ring shape can form a plurality of riveting points on the side of the main sheet body, and the design of the plurality of riveting points can support multiple parts of the main sheet body, thereby reducing the local damage or deformation caused by excessive force on a single point, and further improving the connection stability between the main sheet body and the connecting portion.

[0014] Optionally, in a possible implementation manner, opposite sides of the connecting portion are provided with position-avoiding notches, and the two terminals can pass through the corresponding position-avoiding notches.

[0015] In the technical solution, the position-avoiding notches are arranged to enable the terminals to easily pass through the connecting portion, and the terminals can be avoided from being limited when the pressing portion is pressed, so that the structure of the connecting portion is more compact and efficient, the space layout is optimized, and the utilization rate of the internal space of the shell is further improved.

[0016] Optionally, in a possible implementation manner, a first annular clamping groove is arranged at the connection between the pressing portion and the sliding portion, a second annular clamping groove is arranged on the shell, and one end of the sealing ring is arranged in the first annular clamping groove and the other end of the sealing ring is arranged in the second annular clamping groove.

[0017] In the technical solution, the sealing ring is tightly fixed through the first annular clamping groove and the second annular clamping groove, an effective sealing structure is formed, the waterproof and dustproof performance of the electronic device can be significantly improved, and the invasion of harmful substances such as water and dust into the switch is prevented, so that the service life and reliability of the switch are prolonged.

[0018] Optionally, in a possible implementation manner, a positioning column is arranged on the base, a reset spring is sleeved on the positioning column, one end of the reset spring abuts against the base, and the other end of the reset spring abuts against the contact piece.

[0019] In the technical solution, the reset spring is sleeved on the positioning column and provides stable rebounding force between the base and the contact piece, so that the contact piece can quickly return to the initial position after being subjected to external force, and the stability and reliability of the switch are ensured. When a user operates the switch, the compression and release of the reset spring can provide obvious tactile feedback for the user, which helps the user to more accurately perceive the state of the switch and improves the user experience.

[0020] Optionally, in a possible implementation manner, a plastic wrapping member is arranged on one of the terminals, and the plastic wrapping member is used to wrap a part of the terminal, so that the terminal has an insulating portion and a conductive portion.

[0021] In the technical solution, the plastic wrapping member divides one of the terminals into the insulating portion and the conductive portion, the pressing portion drives the contact piece to slide along the terminal when the pressing portion is pressed, and the circuit is powered on when the contact piece slides to the position where the clamp contacts the conductive portion. This structure is simple and effective, and can make the circuit more stable.

[0022] Optionally, in a possible implementation manner, a clamping block is arranged on the base, an inner side of the shell is provided with a clamping groove matched with the clamping block, and the clamping block can be clamped in the clamping groove.

[0023] In the above technical solution, the design of the clamping block and the clamping groove makes the connection between the base and the shell simple and fast. The user can easily realize the assembly or disassembly of the base and the shell without using additional tools or complex steps, which not only improves the installation efficiency, but also facilitates the maintenance and upgrading of the equipment.

[0024] Optionally, in a possible implementation, one side or more sides of the outer periphery of the shell are provided with a plurality of mounting columns.

[0025] In the above technical solution, the design of the mounting column is to facilitate the installation of the shell, making the installation process of the micro switch more convenient. The user can use screws or other fasteners to fix the mounting column on the device, and then easily complete the installation of the micro switch. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0027] Figure 1 It is an overall structure of an embodiment.

[0028] Figure 2 It is an overall structure assembly drawing of an embodiment.

[0029] Figure 3 It is a bottom view of an embodiment.

[0030] Figure 4 It is a structure diagram of a contact sheet of an embodiment.

[0031] Reference signs: 1 - shell; 11 - second annular clamping groove; 12 - mounting column; 2 - base; 21 - clamping block; 3 - terminal; 31 - plastic wrapping part; 4 - press; 41 - pressing part; 42 - sliding part; 43 - connecting part; 431 - mounting groove; 432 - riveting column; 433 - avoidance gap; 44 - first annular clamping groove; 5 - contact sheet; 51 - main sheet body; 511 - riveting groove; 52 - clip; 6 - sealing ring; 7 - positioning column; 8 - return spring. DETAILED DESCRIPTION

[0032] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0034] Please refer to Figures 1-3 The present embodiment provides an ultra-thin waterproof switch, comprising a shell 1, a base 2 arranged in the shell 1, two terminals 3 arranged on the base 2, an elastic and slidable presser 4, and a contact sheet 5 arranged on the presser 4 and capable of contacting the terminals 3; a sealing ring 6 is sleeved on the outer periphery of the presser 4, one end of the sealing ring 6 is connected to the presser 4, and the other end is connected to the shell 1; the presser 4 comprises a pressing part 41 outside the shell 1, a sliding part 42 slidably arranged in the shell 1, and a connecting part 43 inside the shell 1, the cross section of the pressing part 41 is oval or oblong, the contact sheet 5 is hot riveted to the connecting part 43, and the connecting part 43 is provided with a riveting column 432, and the contact sheet 5 is provided with a riveting groove 511 matched with the riveting column 432.

[0035] On the one hand, the present embodiment effectively prevents water from penetrating into the switch from the outside by arranging the sealing ring 6 between the shell 1 and the presser 4, so that the normal operation and long-term stability of the switch can be maintained even in a humid or underwater environment.

[0036] On the other hand, the cross section of the pressing part 41 of the presser 4 in the present embodiment is oval or oblong, so that the overall design of the switch can be based on the thickness of the pressing part 41 to realize the ultra-thin structure design of the switch, and the overall thickness can be reduced to 2.7 millimeters, which not only saves the installation space, but also improves the appearance and integration of the product, and is more suitable for electronic devices with strict space requirements. In addition, the reduction of the volume of the switch will cause instability of the internal elements such as the connection of the contact sheet 5, therefore, the hot riveting method is used to fix the contact sheet 5 to the connecting part 43 of the presser 4, and the structure design of the additional riveting column 432 and the riveting groove 511 can effectively improve the connection stability of the contact sheet 5 and the connecting part 43, so as to ensure the pressing stability of the whole switch, and effectively reduce the problem of poor contact caused by vibration or long-term use.

[0037] It should be noted that the bottom of the shell 1 is provided with an opening, the base 2 is installed at the opening, and a sealing layer is arranged at the opening to seal the gap between the base 2 and the opening. Two terminals 3 extend to the outside of the shell 1, facilitating connection with the device. The top of the shell 1 is provided with a through hole, and the press 4 is inserted into the through hole, and the sealing ring 6 is used to seal the gap between the press 4 and the through hole. In addition, the long circle in the embodiment has two parallel and equal length line segments, and the two ends of the two line segments are connected by an arc line.

[0038] Please refer to Figure 4 In the embodiment, the contact sheet 5 includes a main sheet body 51 and two clamps 52 symmetrically arranged on opposite sides of the main sheet body 51, the two clamps 52 correspondingly clamp the two terminals 3, and a riveting groove 511 is located on the main sheet body 51. Specifically, the clamp 52 is provided with a clamping groove, and the clamp 52 has a certain elasticity. When assembling, the clamping groove is clamped on the opposite sides of the terminal 3. When the press 4 is pressed, the clamp 52 will slide along the terminal 3, so that the terminal 3 also has a certain guiding effect.

[0039] The contact sheet 5 is installed on the connecting portion 43 through the main sheet body 51, the clamps 52 on the opposite sides of the main sheet body 51 can clamp the two terminals 3 respectively and can slide along the terminals 3, and the contact sheet 5 controls the on-off of the circuit by sliding along the terminals 3. At the same time, since the clamp 52 has a certain clamping force, the contact between the clamp 52 and the terminal 3 is more stable, and the hand feeling of pressing the press 4 can be further improved.

[0040] Please refer to Figure 3 In the embodiment, the connecting portion 43 is provided with a mounting groove 431, the contact sheet 5 is arranged in the mounting groove 431, a riveting column 432 is located in the mounting groove 431, and the riveting groove 511 abuts against the outer periphery of the riveting column 432. The mounting groove 431 is located at the bottom of the connecting portion 43, that is, the side of the connecting portion 43 opposite to the base 2, and the shape of the mounting groove 431 matches the shape of the contact sheet 5, so that the contact sheet 5 can be completely clamped in the mounting groove 431.

[0041] The design of the mounting groove 431 provides a clear positioning point for the contact sheet 5, so that the assembly process is more intuitive and efficient, and the design of the mounting groove 431 allows the contact sheet 5 to be tightly embedded into the connecting portion 43, thereby maximizing the use of limited space. In addition, the riveting groove 511 is in close abutment with the outer periphery of the riveting column 432, so that when the contact sheet 5 is subjected to hot riveting, the riveting column 432 can support the side of the main sheet body 51, thereby improving the stability.

[0042] Specifically, the riveting columns 432 and the riveting grooves 511 are correspondingly arranged in multiple, and the multiple riveting columns 432 are arranged in a ring shape. In this embodiment, the riveting columns 432 are arranged in four, and the four riveting columns 432 are arranged in a rectangular shape. The riveting grooves 511 are arranged on the outer periphery of the main sheet body 51, and the four riveting grooves 511 are correspondingly arranged on the four riveting columns 432.

[0043] The arrangement of the multiple riveting columns 432 in a ring shape in this embodiment can form multiple riveting points on the side of the main sheet body 51, and the design of the multiple riveting points can support multiple parts of the main sheet body 51, thereby reducing the local damage or deformation caused by excessive force on a single point, and further improving the connection stability between the main sheet body 51 and the connecting part 43.

[0044] Please continue to refer to Figure 3 In this embodiment, the connecting part 43 is provided with a position-avoiding gap 433 on each side, and the two terminals 3 can pass through the corresponding position-avoiding gap 433. The arrangement of the position-avoiding gap 433 allows the terminal 3 to easily pass through the connecting part 43, and the pressing part 4 can avoid being limited by the terminal 3 when being pressed, so that the structure of the connecting part 43 is more compact and efficient, the space layout is optimized, and the utilization rate of the internal space of the shell 1 is further improved.

[0045] Please refer to Figure 1 and Figure 2 In this embodiment, a first annular clamping groove 44 is arranged at the connection between the pressing part 41 and the sliding part 42, a second annular clamping groove 11 is arranged on the shell 1, and one end of the sealing ring 6 is arranged in the first annular clamping groove 44 and the other end is arranged in the second annular clamping groove 11. The sealing ring 6 has a tapered structure with a small top and a large bottom. The top and bottom of the sealing ring 6 are both provided with openings. The top opening is sleeved on the first annular clamping groove 44 by interference fit, and the bottom opening is fixed on the second annular clamping groove 11 by welding.

[0046] The sealing ring 6 is tightly fixed by the first annular clamping groove 44 and the second annular clamping groove 11, forming an effective sealing structure, which can significantly enhance the waterproof and dustproof performance of the electronic device, prevent harmful substances such as water and dust from entering the inside of the switch, and prolong the service life and reliability of the switch.

[0047] Please refer to Figure 1 In this embodiment, the base 2 is provided with a positioning column 7, and the positioning column 7 is sleeved with a reset spring 8. One end of the reset spring 8 abuts against the base 2, and the other end abuts against the contact sheet 5. The reset spring 8 is a metal spring. The cross section of the positioning column 7 is also an oval structure, which can save the installation space inside the shell 1. The spring has a spiral structure, and extends around the oval spiral line.

[0048] The reset spring 8 is sleeved on the positioning column 7, and provides stable rebound force between the base 2 and the contact piece 5, so that the contact piece 5 can quickly return to the original position after being subjected to external force, thereby guaranteeing the stability and reliability of the switch. When the user operates the switch, the compression and release of the reset spring 8 can provide obvious tactile feedback for the user, which helps the user to more accurately perceive the state of the switch and improves the user experience.

[0049] In the embodiment, the plastic wrapping part 31 is arranged on one of the terminals 3, and is used for wrapping a part of the terminal 3, so that the terminal 3 has an insulating part and a conductive part. Specifically, the plastic wrapping part 31 divides the one of the terminals 3 into the insulating part and the conductive part. When the presser 4 drives the contact piece 5 to slide along the terminal 3, the circuit is powered when the clip 52 contacts the conductive part. The structure is simple and effective, and can make the circuit more stable.

[0050] The base 2 is provided with the clamping block 21, and the inner side of the shell 1 is provided with a clamping groove (not shown in the figure) matched with the clamping block 21, and the clamping block 21 can be clamped in the clamping groove. The design of the clamping block 21 and the clamping groove makes the connection between the base 2 and the shell 1 simple and fast. The user can easily assemble or disassemble the base 2 and the shell 1 without using additional tools or complex steps, which improves the installation efficiency and facilitates the maintenance and upgrading of the equipment.

[0051] It should be noted that one side or more sides of the outer periphery side of the shell 1 are provided with a plurality of mounting columns 12. The design of the mounting column 12 is to facilitate the installation of the shell 1, so that the installation process of the micro switch is more convenient. The user can use screws or other fasteners to fix the mounting column 12 on the equipment, and then easily complete the installation of the micro switch.

[0052] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by terms such as 'up', 'down', 'front', 'back', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer' and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0053] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0054] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An ultra-thin waterproof switch, comprising a housing, a base arranged in the housing, two terminals arranged on the base, an elastic and slidable push button, and a contact sheet arranged on the push button and capable of contacting the terminals; characterized in that, The sealing ring is sleeved on the outer periphery of the pressing piece, and one end of the sealing ring is connected to the pressing piece and the other end is connected to the shell.

2. The ultra-thin waterproof switch according to claim 1, wherein, The contact piece includes a main piece body and clamps symmetrically arranged on opposite sides of the main piece body, and the two clamps correspondingly hold two terminals.

3. The ultra-thin waterproof switch according to claim 2, wherein, The connecting portion is provided with a mounting groove, the contact piece is arranged in the mounting groove, the riveting column is arranged in the mounting groove, and the riveting groove abuts against the outer periphery of the riveting column.

4. The ultra-thin waterproof switch according to claim 3, wherein, The riveting column and the riveting groove are correspondingly arranged in plurality, and the plurality of riveting columns are arranged in a ring shape and are spaced apart.

5. The ultra-thin waterproof switch according to claim 3, wherein, The opposite sides of the connecting portion are provided with position-avoiding notches, and the two terminals can pass through the corresponding position-avoiding notches.

6. The ultra-thin waterproof switch of claim 1, wherein, The connection between the pressing portion and the sliding portion is provided with a first annular clamping groove, the shell is provided with a second annular clamping groove, one end of the sealing ring is arranged in the first annular clamping groove, and the other end is arranged in the second annular clamping groove.

7. The ultra-thin waterproof switch of claim 1, wherein, The base is provided with a positioning column, the positioning column is sleeved with a reset spring, one end of the reset spring abuts against the base, and the other end abuts against the contact piece.

8. The ultra-thin waterproof switch of claim 1, wherein, One of the terminals is provided with a plastic wrapping member, the plastic wrapping member is used for wrapping a part of the terminal, so that the terminal has an insulating part and a conductive part.

9. The ultra-thin waterproof switch of claim 1, wherein, The base is provided with a clamping block, the inner side of the shell is provided with a clamping groove matched with the clamping block, and the clamping block can be clamped in the clamping groove.

10. The ultra-thin waterproof switch according to any one of claims 1-9, wherein, One side or multiple sides of the outer periphery of the shell are provided with a plurality of mounting columns.

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