Detection switch, switch assembly and electronic equipment

Abstract

According to the detection switch, the switch assembly and the electronic equipment, the first conductive terminal, the second conductive terminal and the insulating shell of the detection switch are fused together to form the cavity capable of containing the elastic component, compared with the scheme that a shell is independently arranged for containing other parts, the internal space of the detection switch can be saved, and the detection switch is more convenient to use. And the miniaturization design is realized. When a pressing part of the detection switch is not pressed, a first end face and a second end face which are opposite to each other are in contact with a first conductive terminal and a second conductive terminal respectively, so that short circuit of the two terminals is realized; under the condition that the pressing part is pressed, the contact between the second end face and the second conductive terminal is disconnected, and the connection between the two terminals is disconnected, so that whether the pressing part of the detection switch is pressed (namely, the on-off state of the detection switch) can be judged by detecting the level of the first conductive terminal and the level of the second conductive terminal, and position detection is realized.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a detection switch, a switch assembly, and an electronic device. Background Technology

[0002] A detection switch is an electronic switch used for position detection. When the button of the detection switch is touched by an external force, it can switch from an open state to an open state, or from an open state to an open state. Position detection can be achieved by identifying the open and closed state of the detection switch. For example, a detection switch can be used to detect whether a card tray or other external plug-in object is inserted into an electronic device.

[0003] Currently, there are two structural styles for detection switches. One scheme uses a double helical spring. When the button is pressed, one helical spring moves the moving contact, while the other helical spring below the moving contact is compressed, causing the moving contact to short-circuit the two stationary contacts at the bottom of the switch. When the external force on the button is removed, the two helical springs return to their original positions, causing the moving contact and the button to return to their original positions, and the two stationary contacts disconnect. However, this scheme has more components, making it difficult to miniaturize and apply in the small spaces of electronic products.

[0004] Another approach uses a bent reset spring to connect the two contact parts. When the reset spring is pressed, the two conductive contacts make contact with the two contact parts respectively. When the external force is removed, the reset spring returns to its original position due to its own elasticity, and one of the conductive contacts disconnects. The reset of this detection switch relies on the shape of the reset spring itself to provide the reset elasticity. Therefore, the actual bent reset spring is relatively large, occupying a significant amount of internal space in the switch, which is not conducive to miniaturization.

[0005] In summary, there is an urgent need for a detection switch that can be miniaturized and applied in the small spaces of electronic products. Summary of the Invention

[0006] This application provides a detection switch, a switch assembly, and an electronic device that can be miniaturized and applied to small spaces in electronic products.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] In a first aspect, a detection switch is provided, comprising: an insulating housing having a first opening and a second opening; a first conductive terminal located in the first opening; and a second conductive terminal located in the second opening, wherein the first conductive terminal, the second conductive terminal, and the insulating housing constitute a cavity; the detection switch further comprises: an elastic member located within the cavity; and a pressing member connected to the elastic member and extending out of the insulating housing from the second opening; the elastic member comprises: a first end face and a second end face facing away from each other; wherein, when the pressing member is not pressed, the first end face contacts the first conductive terminal, and the second end face contacts the second conductive terminal; and when the pressing member is pressed, the second end face of the elastic member disconnects from the second conductive terminal.

[0009] Based on the above technical solution, this application provides an independent detection switch. The detection switch includes a first conductive terminal, a second conductive terminal, an insulating shell, an elastic component, and a pressing component. The insulating shell of the detection switch has a first opening and a second opening. The first conductive terminal is located in the first opening of the insulating shell, and the second conductive terminal is located in the second opening of the insulating shell. In this way, the first conductive terminal, the second conductive terminal, and the insulating shell are integrated to form a cavity that can accommodate the elastic component. Compared with the solution of setting a separate shell to accommodate other components, the internal space of the detection switch can be saved. Moreover, compared with the solution of using a moving terminal to short-circuit two fixed terminals, the elastic component is directly in contact with the first conductive terminal and the second conductive terminal, which can eliminate the moving terminal component. With fewer components, the detection switch provided in this embodiment can achieve a miniaturized design. When the pressing part of the detection switch is not pressed, the opposite first and second end faces contact the first and second conductive terminals respectively, achieving a short circuit between the two terminals; when the pressing part is pressed, the second end face disconnects from the second conductive terminal, and the connection between the two terminals is broken. Thus, position detection can be achieved by detecting the high and low voltage levels of the first and second conductive terminals to determine whether the pressing part of the detection switch is pressed (i.e., the on / off state of the detection switch).

[0010] In one possible implementation of the first aspect, the elastic component is a strip-shaped, wavy, bent elastic sheet. Based on the above technical solution, this embodiment uses a strip-shaped, wavy elastic sheet. When the wavy, bent elastic sheet is pressed, the stress distribution is uniform, and it is not easy to deform and lose elasticity under external force, thus enabling miniaturized design.

[0011] In one possible implementation of the first aspect, the width of the wavy bending spring ranges from 0.22 mm to 0.27 mm.

[0012] In one possible implementation of the first aspect, the elastic component and the pressing component are integrally injection molded. Based on the above technical solution, in this embodiment, the elastic component and the pressing component are integrally injection molded, which reduces the number of parts to be assembled in the detection switch, facilitates assembly production, and thus helps to improve production efficiency.

[0013] In one possible implementation of the first aspect, the first conductive terminal and the insulating shell are integrally injection molded. Based on the above technical solution, in this embodiment, the first conductive terminal and the plastic shell are integrally injection molded, reducing the number of parts to be assembled, facilitating assembly production, and thus improving production efficiency.

[0014] In one possible implementation of the first aspect, the first conductive terminal includes: a first portion in contact with the first end face, a second portion and a third portion extending from the first portion, the second portion and the third portion being disposed opposite to each other on the upper and lower sides of the elastic member; the outer surfaces of the first portion, the second portion and the third portion serve as the surfaces of the detection switch.

[0015] Based on the above technical solution, in this embodiment, the second and third parts of the first conductive terminal are disposed opposite to each other on the upper and lower sides of the elastic component. This facilitates the fixing of the first conductive terminal by applying opposing forces to the second and third parts of the first conductive terminal during the fabrication of the insulating shell. Furthermore, the outer surfaces of the first, second, and third parts of the first conductive terminal all serve as the surfaces of the detection switch. This saves internal space of the detection switch and is beneficial for the miniaturization design of the detection switch.

[0016] In one possible implementation of the first aspect, the second conductive terminal includes: a fourth portion in contact with the second end face, and a fifth portion extending from the fourth portion; the outer surface of the fifth portion and the outer surface of the second portion are located on the same surface of the insulating housing.

[0017] Based on the above technical solution, in this embodiment, the outer surface of the fifth part of the second conductive terminal and the outer surface of the second part of the first conductive terminal are located on the same surface of the insulating shell. The fifth part of the second conductive terminal and the second part of the first conductive terminal can be used as the welding point of the detection switch, which is convenient for installation.

[0018] In one possible implementation of the first aspect, the second conductive terminal includes: a fourth portion in contact with the second end face, and a sixth portion extending from the fourth portion, wherein the insulating housing has a slot located around the second opening, and the sixth portion is located within the slot, thereby fixing the second conductive terminal to the insulating housing.

[0019] In one possible implementation of the first aspect, the elastic member includes a first elastic portion and a second elastic portion, the pressing member connects the first elastic portion and the second elastic portion, and the insulating housing includes an insulating portion located between the first elastic portion and the second elastic portion; the first end face includes a first sub-end face and a second sub-end face, and the second end face includes a third sub-end face and a fourth sub-end face; the first elastic portion includes a first sub-end face and a third sub-end face facing away from each other, and the second elastic portion includes a second sub-end face and a fourth sub-end face facing away from each other; the first conductive terminal includes a first component and a second component; when the pressing member is not pressed, the first sub-end face of the first elastic portion contacts the first component, and the second sub-end face of the second elastic portion contacts the second component; the third sub-end face of the first elastic portion and the fourth sub-end face of the second elastic portion both contact the second conductive terminal; when the pressing member is pressed, the third sub-end face of the first elastic portion and the fourth sub-end face of the second elastic portion both disconnect from the second conductive terminal.

[0020] In one possible implementation of the first aspect, the first component includes: a seventh portion that contacts a first sub-end face of the first elastic portion, an eighth portion extending from the seventh portion, and a ninth portion extending from the eighth portion;

[0021] The second component includes: a tenth portion that contacts the second sub-end face of the second elastic portion, an eleventh portion extending from the tenth portion, and a twelfth portion extending from the eleventh portion;

[0022] The outer surfaces of the seventh part and the tenth part are located on the same surface of the insulating shell, the outer surfaces of the eighth part and the eleventh part are located on the same surface of the insulating shell, and the outer surfaces of the ninth part and the twelfth part are located on the same surface of the insulating shell.

[0023] The outer surfaces of the seventh part, the eighth part, and the ninth part are located on different surfaces of the insulating shell.

[0024] Based on the above technical solution, in this solution, multiple surfaces of the detection switch expose a portion of the outer surface of the first component and a portion of the outer surface of the second component. Thus, the portions of the first and second components exposed on different surfaces of the detection switch can be used as welding points. The detection switch can be installed using welding points on different surfaces, resulting in diverse installation methods that are applicable to various installation scenarios.

[0025] In one possible implementation of the first aspect, the second conductive terminal includes: a thirteenth portion covering the first elastic portion and the second elastic portion, and two fourteenth portions connected to one end of the thirteenth portion and spaced apart;

[0026] The two fourteenth parts respectively contact the third sub-end face of the first elastic part and the fourth sub-end face of the second elastic part.

[0027] In one possible implementation of the first aspect, the height of the insulating portion is higher than that of the first elastic portion and also higher than that of the second elastic portion. Based on the above technical solution, in this solution, the heights of both the first and second elastic portions are not higher than the height of the partition plate, thus preventing the thirteenth portion of the second conductive terminal from short-circuiting the two elastic portions.

[0028] In a second aspect, a switch assembly is provided, the switch assembly comprising: a detection switch as described in any one of claims 1 to 12, and a PCB board, the PCB board having a first pad and a second pad corresponding to a first conductive terminal and a second conductive terminal of the detection switch, the first conductive terminal being connected to the first pad, and the second conductive terminal being connected to the second pad.

[0029] Thirdly, an electronic device is provided, the electronic device comprising: a card holder, a switch assembly as described in claim 13, the switch assembly being mounted on the card holder.

[0030] In one possible implementation of the third aspect, the electronic device further includes a card tray mounted on the card holder, wherein when the card tray is inserted, the detection switch of the switch assembly is in an open state, and in the open state, the second end face of the elastic member of the detection switch is disconnected from the second conductive terminal.

[0031] In one possible implementation of the third aspect, the electronic device further includes: a power supply and a processor, wherein the power supply is connected to a detection switch of the switching assembly to supply power to the detection switch, and the processor is connected to the PCB board for detecting the level signal of the switching assembly.

[0032] Based on the implementation methods provided in the above aspects, this application can be further combined to provide more implementation methods. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the current structure where the detection switch is integrated into the card slot;

[0034] Figure 2 yes Figure 1 The diagram shows the structure of the detection switch in the connected state;

[0035] Figure 3 yes Figure 1 The diagram shows the structure with the detection switch in the open state.

[0036] Figure 4 This is a schematic diagram of the structure of a current independent switch;

[0037] Figure 5 This is a schematic diagram of another type of independent switch.

[0038] Figure 6 This is a three-dimensional structural schematic diagram of the detection switch provided in the first aspect of the embodiments of this application;

[0039] Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the detection switch in the connected state.

[0040] Figure 8 yes Figure 7 The diagram shows a cross-sectional view of the detection switch in the off state.

[0041] Figure 9 yes Figure 6 A schematic diagram of the insulating housing of the detection switch shown;

[0042] Figure 10 yes Figure 6 A schematic diagram of the elastic component and pressing component of the detection switch shown;

[0043] Figure 11 yes Figure 6 A schematic diagram of the structure of the first conductive terminal of the detection switch shown;

[0044] Figure 12 yes Figure 6 A schematic diagram of the structure of the second conductive terminal of the detection switch shown;

[0045] Figure 13 yes Figure 6 A schematic diagram of the assembly process of the detection switch shown;

[0046] Figure 14 This is a three-dimensional structural schematic diagram of the detection switch provided in the embodiments of this application;

[0047] Figure 15 yes Figure 14 A schematic diagram of the structure of the second conductive terminal of the detection switch shown;

[0048] Figure 16 yes Figure 14 A schematic diagram of the elastic component and pressing component of the detection switch shown;

[0049] Figure 17 yes Figure 14 A schematic diagram of the structure of the first conductive terminal of the detection switch shown;

[0050] Figure 18 yes Figure 14 A schematic diagram of the first conductive terminal and insulating housing of the detection switch from a bottom view.

[0051] Figure 19 yes Figure 14 The schematic diagram shown is a top view of the first conductive terminal and the insulating housing of the detection switch.

[0052] Figure 20 This is a schematic diagram of a structure in which the detection switch is installed on the card slot according to an embodiment of this application;

[0053] Figure 21 This is another schematic diagram of the detection switch mounted on the card slot according to an embodiment of this application;

[0054] Figure 22 This is a schematic diagram of the structure of the detection switch used to detect external plug-in manufacturer 1 in an embodiment of this application;

[0055] Figure 23 This is a schematic diagram of the structure of the detection switch used to detect external plug-in manufacturer 2 in an embodiment of this application;

[0056] Figure 24 This is a schematic diagram of a structure for detecting whether a switch is in a connected state in a switch assembly according to an embodiment of this application;

[0057] Figure 25 This is a schematic diagram of a structure for detecting that the switch is in an open state in a switch assembly according to an embodiment of this application. Detailed Implementation

[0058] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0059] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0060] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "a plurality of" means two or more.

[0061] A detection switch is an electronic switch used for position detection. When the button of the detection switch is touched by an external force, it can switch from an open state to an open state, or from an open state to an open state. Position detection can be achieved by identifying the open and closed state of the detection switch. For example, a detection switch can be used to detect whether a card tray or other external plug-in object is inserted into an electronic device.

[0062] The following example, using the scenario of detecting whether a card tray is inserted into an electronic device, illustrates the specific working principle of the detection switch:

[0063] like Figure 1 , Figure 2 and Figure 3 As shown, the detection switch 300 is integrated at the bottom of the card slot 100. The detection switch 300 includes a fixed terminal 301 and a moving terminal 302. The fixed terminal 301 is soldered to the PCB board at the bottom of the card slot 100 and connected to a high-level power supply I / O port. The moving terminal 302 is soldered to the PCB board and grounded. The chip I / O port determines the on / off state of the detection switch 300 by detecting the high or low level at the fixed terminal 301. Figure 2 As shown, when the card holder 200 is not inserted into the electronic device, the fixed terminal 301 and the moving terminal 302 of the detection switch 300 are in contact. At this time, the detection switch 300 is in the connected state, and the voltage level at the fixed terminal 301 is pulled low. Figure 3 As shown, when the card holder 200 is inserted into the electronic device, the card holder 200 presses against the moving terminal 302 of the detection switch 300, and the fixed terminal 301 and the moving terminal 302 are disconnected. At this time, the detection switch 300 is in the off state, and the level at the fixed terminal 301 is high.

[0064] Based on the above principle, when the card holder 200 is inserted into the electronic device, it presses against the detection switch 300, changing the voltage level of the fixed terminal 301 of the detection switch 300 from low to high. When the card holder 200 is removed from the electronic device, the voltage level of the fixed terminal 301 of the detection switch 300 changes from high to low. Thus, by determining the voltage level of the detection switch 300, it is possible to determine whether the card holder 200 or other external plug-in objects have been inserted or removed from the electronic device.

[0065] The aforementioned detection switch 300 is integrated as a small component onto the main body of the functional device (e.g., the card holder 100), resulting in a fixed integration position and poor flexibility. Therefore, a more independent and universal detection switch is needed, which can be placed in different locations within the electronic device, offering greater flexibility.

[0066] Currently, independent detection switches have the following two structural styles, as detailed below:

[0067] One solution uses a double helical spring, such as Figure 4As shown, the detection switch includes an upper switch housing 1, a lower switch housing 2, and a switch functional unit. The switch functional unit includes a stationary contact (including an inlet contact 6 and an outlet contact 7), a moving contact 3, a button 4, a keyway 5, a first elastic element 8, a second elastic element 9, and a stationary contact mounting slot. The inlet contact 6 and the outlet contact 7 are respectively installed in the corresponding inlet contact mounting slots 201 and outlet contact mounting slots 202 on both sides of the keyway 5.

[0068] By pressing button 4, the position of the moving contact 3 is further controlled by the elastic difference between the first elastic element 8 and the second elastic element 9. When button 4 is pressed to a certain extent, the moving contact 3 is electrically connected to the stationary contact, and the circuit is finally connected, and the switch is in the connected state. At this time, the first elastic element 8 acts as a buffer to improve the stability of the electrical connection between the moving contact 3 and the stationary contact (including the incoming contact 6 and the outgoing contact 7). When button 4 is released, the first elastic element 8 acts as a reset element, causing the moving contact 3 to move upward to disconnect the circuit. At this time, the connection between the incoming contact 6 and the outgoing contact 7 is disconnected, and the switch is in the disconnected state.

[0069] It can be seen that, as Figure 4 The switch shown is used to detect whether the card tray 200 is inserted into an electronic device. If the connection between the incoming contact 6 and the outgoing contact 7 is detected to be disconnected, that is, the switch is detected to be in the off state, it can be determined that the switch has not been triggered and the card tray 200 has not been inserted. If the incoming contact 6 and the outgoing contact 7 are detected to be electrically connected through the moving contact 3, that is, the switch is in the on state, it can be determined that the switch has been triggered and the card tray 200 has been inserted.

[0070] like Figure 4 In the switch shown, the incoming contact 6 and the outgoing contact 7 need to be electrically connected through the moving contact 3, and two elastic elements (the first elastic element 8 and the second elastic element 9) need to be set. The switch has many parts, so it is difficult to make the size small, making it difficult to apply in the small space of electronic products. Moreover, the assembly is complicated and the assembly efficiency is not high.

[0071] Another solution uses a bent reset spring, such as Figure 5 As shown, the detection switch includes: a housing with an opening at the top, a button 20 located at the opening, a reset spring positioned on the button 20, and two conductive plates fixed at the bottom of the housing. The reset spring provides a reset spring force for the button 20. The two conductive plates have a contact portion 40 extending into the housing and an electrical lead extending out of the housing. The reset spring is a metal plate with two conductive contacts 27. The button 20 can rotate relative to the housing between an off position and an on position.

[0072] The conductive sheet includes two hook-shaped sheets 24 bent in the same direction. The upper portions of the two sheets 24 overlap to form an overlapping portion 26, and the lower portions of the two sheets 24 separate and form contact portions 41 at their ends. The overlapping portion 26 is positioned and connected to the button 20. Further, to facilitate the assembly of the reset spring 3 and the button, a groove 21 is provided at the lower part of the button 2, and an abutting surface 22 is provided at the upper part of the groove 21. The overlapping portion 26 abuts against the abutting surface 22, and a positioning block 34 is provided at the upper end of the overlapping portion 26. A positioning groove 23 is provided on the button 2 to engage with the positioning block 34. The positioning connection between the reset spring 3 and the button 2 is achieved through the contact between the abutting surface 22 and the overlapping portion 26, and the cooperation between the positioning block 34 and the positioning groove 23, making assembly convenient and reliable. Additionally, the button 20 is provided with a stop block 25, and a limiting stop 12 is provided on the outer casing. When the button 20 is in the off position, the stop block 25 abuts against the limiting stop 12.

[0073] Button 20 can rotate relative to housing 1 between an open position and an on position. Normally, button 20 is in the open position, where one conductive contact 27 is in contact with the contact portion 41 on one conductive plate, and the other conductive contact 27 is separated from the contact portion 41 on another conductive plate. The switch is in an open circuit state. When button 20 is in the on position, both conductive contacts 27 are in contact with the contact portions 41 on the two conductive plates respectively, and the switch is in an on state. The reset spring has two functions: to connect the circuit and to provide a reset force for button 20, thus reducing the number of components in the detection switch 400.

[0074] like Figure 5 In the switch shown, the reset spring provides the reset force based on the spring force brought about by the shape of the reset spring itself. Therefore, the actual volume of the reset spring after bending is relatively large, occupying a large space inside the switch, which is not conducive to the miniaturization of the detection switch.

[0075] In summary, there is an urgent need for a detection switch that can be miniaturized and applied in the small spaces of electronic products.

[0076] In view of this, such as Figures 6 to 9As shown, this application embodiment provides an independent detection switch 400, including an insulating housing 41, a first conductive terminal 42, a second conductive terminal 43, an elastic member 44, and a pressing member 45. The insulating housing 41 of the detection switch 400 has a first opening 411 and a second opening 412. The first conductive terminal 42 is located in the first opening 411 of the insulating housing 41, and the second conductive terminal 43 is located in the second opening 412 of the insulating housing 41. Thus, the first conductive terminal 42, the second conductive terminal 43, and the insulating housing 41 are fused together to form a cavity that can accommodate the elastic member 44. Compared to a separate housing to accommodate other components, this saves internal space in the detection switch 400. Furthermore, compared to using a moving terminal to short-circuit two fixed terminals, directly using the elastic member 44 to contact the first conductive terminal 42 and the second conductive terminal 43 eliminates the need for the moving terminal. Also, compared to using two helical springs, there are fewer components. Therefore, the detection switch 400 provided in this embodiment can achieve a miniaturized design.

[0077] Reference Figure 7 When the pressing part 45 of the detection switch 400 is not pressed, the opposite first end face 441 and second end face 442 contact the first conductive terminal 42 and the second conductive terminal 43 respectively, achieving a short circuit between the two terminals; refer to Figure 8 When an external force F is applied to the pressing component 45, the second end face 442 and the second conductive terminal 43 are disconnected when the pressing component 45 is pressed, and the connection between the two terminals is broken. Thus, the pressing component 45 of the detection switch 400 can be determined by detecting the high and low levels of the first conductive terminal 42 and the second conductive terminal 43, that is, the on / off state of the detection switch 400, thereby realizing position detection.

[0078] The structure and function of each component of a detection switch 400 provided in this application embodiment will be described below with reference to the accompanying drawings.

[0079] (1) Insulating shell 41

[0080] Reference Figure 9 In this embodiment, the insulating housing 41 has a first opening 411 and a second opening 412. The first opening 411 is used to set the first conductive terminal 42, and the second opening 412 is used to set the second conductive terminal 43. In this way, the insulating housing 41 not only fixes the first conductive terminal 42 and the second conductive terminal 43 together, but also avoids direct contact between the first conductive terminal 42 and the second conductive terminal 43, which could cause a short circuit.

[0081] (2) Elastic component 44

[0082] Reference Figure 10In this embodiment, the elastic component 44 is located inside the cavity of the detection switch 400. The elastic component 44 serves two functions: one is to electrically connect the first conductive terminal 42 and the second conductive terminal 43, and the other is to automatically reset after being pressed. In this embodiment, the elastic component 44 can be made of metal, such as copper.

[0083] The elastic component 44 can be electrically connected to the first conductive terminal 42 and the second conductive terminal 43 using a helical spring. Since the contact area of ​​the helical spring is only the area of ​​the wire diameter, the contact area is small, which may lead to poor contact between the helical spring and the first conductive terminal 42 and the second conductive terminal 43, resulting in low contact reliability.

[0084] Based on this, this embodiment also provides another type of elastic component 44, which is a strip-shaped wavy bent spring. The wavy bent spring has opposing first end faces 441 and second end faces 442 at both ends. For a helical spring and a wavy bent spring of the same size, the contact area between the wavy bent spring and the first conductive terminal 42 and the second conductive terminal 43 is significantly larger than that between the helical spring and the first conductive terminal 42 and the second conductive terminal 43, resulting in better contact reliability. Furthermore, compared to… Figure 5 As shown in the reset spring, when the strip-shaped wavy bend spring is pressed, the stress is evenly distributed and it is not easy to deform and lose elasticity under the action of external force, which is conducive to realizing miniaturized design.

[0085] In one feasible implementation, the width of the wavy bending spring ranges from 0.22 mm to 0.27 mm, and optionally can be 0.24 mm or 0.25 mm.

[0086] (3) Pressing component 45

[0087] Reference Figure 10 The pressing component 45 is L-shaped, with one part connected to the elastic component 44 and the other part extending out of the second opening 412 and exposed outside the detection switch 400. By applying force to the pressing component 45, the elastic component 44 can be compressed and deformed.

[0088] In one possible implementation, the elastic component 44 and the pressing component 45 are integrally injection molded, which reduces the number of parts to be assembled in the detection switch 400, facilitates assembly and production, and thus helps to improve production efficiency.

[0089] (4) First conductive terminal 42

[0090] Reference Figure 11 The first conductive terminal 42 is disposed in the first opening 411 of the insulating housing 41. The first conductive terminal 42 can be a high-level terminal or a low-level terminal.

[0091] In practice, the first conductive terminal 42 and the insulating housing 41 are integrally injection molded, which can reduce the number of parts to be assembled in the detection switch 400, facilitate assembly and production, and thus help improve production efficiency.

[0092] In practice, the first conductive terminal 42 includes: a first portion 421 that contacts the first end face 441, a second portion 422 and a third portion 423 extending from the first portion 421, the second portion 422 and the third portion 423 being disposed opposite to each other on the upper and lower sides of the elastic member 44; the outer surfaces of the first portion 421, the second portion 422 and the third portion 423 serve as the surfaces of the detection switch 400.

[0093] In this embodiment, the first conductive terminal 42 is integrally formed. The first part 421 of the first conductive terminal 42 is used to contact the first end face 441 of the elastic member 44; the second part 422 or the third part 423 of the first conductive terminal 42 can be used as a soldering point to be soldered to the solder pad on the PCB board 50.

[0094] The second portion 422 and the third portion 423 of the first conductive terminal 42 are disposed opposite to each other on the upper and lower sides of the elastic member 44. Thus, when manufacturing the insulating shell 41, the first conductive terminal 42 can be fixed in the mold by applying opposing forces to the second portion 422 and the third portion 423 of the first conductive terminal 42. Then, the insulating shell 41 is formed by injection molding into the mold. Furthermore, the outer surfaces of the first portion 421, the second portion 422, and the third portion 423 of the first conductive terminal 42 all serve as the surfaces of the detection switch 400. This avoids enclosing multiple portions of the first conductive terminal 42 inside the insulating shell 41, saving internal space of the detection switch 400 and facilitating the miniaturization design of the detection switch 400.

[0095] In some embodiments, the first conductive terminal 42 further includes a first extension 4251 and a second extension 4252 extending from both ends of the second portion 422 and disposed opposite to each other, wherein the outer surfaces of the first extension 4251 and the second extension 4252 both serve as surfaces of the detection switch 400. Thus, when manufacturing the insulating housing 41, the first conductive terminal 42 can be fixed in the mold by applying opposing forces to the first extension 4251 and the second extension 4252, and then the insulating housing 41 can be formed by injection molding into the mold.

[0096] In another embodiment, the first conductive terminal 42 further includes a third extension 4253 and a fourth extension 4254 extending from both ends of the third portion 423 and disposed opposite to each other, wherein the outer surfaces of the third extension 4253 and the fourth extension 4254 both serve as surfaces of the detection switch 400. Thus, when manufacturing the insulating housing 41, the first conductive terminal 42 can be fixed in the mold by applying opposing forces to the third extension 4253 and the fourth extension 4254, and then the insulating housing 41 can be formed by injection molding into the mold.

[0097] In some embodiments, the first conductive terminal 42 further includes a fifth extension 424 extending from one end of the second portion 422 and covering the pressing member 45, wherein the outer surface of the fifth extension 424 serves as the surface of the detection switch 400. Since the first conductive terminal 42 is made of metal, its thickness can be approximately 0.1 mm, while the insulating shell 41 covering the pressing member 45 has a thickness of approximately 0.2 mm to ensure its rigidity. Thus, by using the fifth extension 424 of the first conductive terminal 42 to cover the pressing member 45, the detection switch 400 can be made thinner in the thickness direction.

[0098] To ensure a tight fit between the first conductive terminal 42 and the insulating housing 41, the first conductive terminal 42 further includes opposing sixth extensions 4255 and seventh extensions 4256 extending from both ends of the fifth extension 424. The insulating housing 41 is provided with... Figure 9 The groove 414 shown, the sixth extension 4255 and the seventh extension 4256 are located in the groove 414, and fix the first conductive terminal 42 to the insulating housing 41.

[0099] (5) Second conductive terminal 43

[0100] Reference Figure 12 The second conductive terminal 43 is disposed in the second opening 412 of the insulating housing 41 (see Figure 9 If the first conductive terminal 42 is a high-level terminal, then the second conductive terminal 43 is a low-level terminal; if the first conductive terminal 42 is a low-level terminal, then the second conductive terminal 43 is a high-level terminal.

[0101] The first conductive terminal 42 and the second conductive terminal 43 have different voltage levels. Thus, when the first conductive terminal 42 and the second conductive terminal 43 are connected or disconnected by the elastic member 44, the voltage level between the two terminals will change. By observing the change in the voltage level between the first conductive terminal 42 and the second conductive terminal 43, it can be determined whether the detection switch 400 is in a connected or disconnected state.

[0102] In one possible implementation, the second conductive terminal 43 includes: a fourth portion 431 in contact with the second end face 442, and a fifth portion 432 extending from the fourth portion 431; the outer surface of the fifth portion 432 and the outer surface of the second portion 422 are located on the same surface of the insulating housing 41.

[0103] In this embodiment, the second conductive terminal 43 is integrally formed. The fourth part 431 of the second conductive terminal 43 is used to contact the second end face 442 of the elastic member 44; the fifth part 432 of the second conductive terminal 43 can be used as a soldering point to be soldered to the solder pad on the PCB board.

[0104] In practice, the outer surface of the fifth portion 432 of the second conductive terminal 43 and the outer surface of the second portion 422 of the first conductive terminal 42 are located on the same surface of the insulating housing 41. The fifth portion 432 of the second conductive terminal 43 and the second portion 422 of the first conductive terminal 42 can be used as the soldering point of the detection switch 400, which facilitates installation.

[0105] In one possible implementation, the second conductive terminal 43 further includes a sixth portion 433 extending from the fourth portion 431, and the insulating housing 41 has a slot 413 located around the second opening 412 (see [link]). Figure 9 The sixth part 433 is located in the slot 413 and fixes the second conductive terminal 43 to the insulating housing 41.

[0106] In this embodiment, the insulating housing 41 has a slot 413 located around the second opening 412. The sixth part 433 of the second conductive terminal 43 is inserted into the slot 413. Thus, when assembling the detection switch 400, the elastic member 44 and the pressing member 45 are first installed into the structure formed by the insulating housing 41 and the first conductive terminal 42. Then, the second conductive terminal 43 is inserted into the slot 413 of the insulating housing 41, closing the second opening 412 and preventing the elastic member 44 from popping out. The detection switch 400 in this embodiment is simple to assemble.

[0107] The following is combined Figure 13 The assembly method of the detection switch 400 in the above embodiment will be described. First, a structure A formed by an insulating housing 41 and a first conductive terminal 42, a structure B formed by an elastic member 44 and a pressing member 45, and a second conductive terminal 43 are provided. Second, structure B is first installed into structure A to form structure C. Finally, the second conductive terminal 43 is inserted into structure C to form the detection switch 400.

[0108] like Figures 14 to 19As shown in the embodiment of this application, another independent detection switch 400 is also provided, including a first conductive terminal 42, a second conductive terminal 43, an insulating housing 41, an elastic member 44, and a pressing member 45. The insulating housing 41 of the detection switch 400 is provided with a first opening 411 and a second opening 412. The first conductive terminal 42 is located in the first opening 411 of the insulating housing 41, and the second conductive terminal 43 is located in the second opening 412 of the insulating housing 41. In this way, the first conductive terminal 42, the second conductive terminal 43 and the insulating housing 41 are fused together to form a cavity that can accommodate the elastic member 44. Compared with the solution of setting a separate outer shell to accommodate other components, the internal space of the detection switch 400 can be saved.

[0109] Reference Figure 16 The elastic component 44 includes a first elastic portion 4401 and a second elastic portion 4402. The pressing component 45 connects the first elastic portion 4401 and the second elastic portion 4402. The insulating housing 41 includes an insulating portion 410 located between the first elastic portion 4401 and the second elastic portion 4402. The insulating portion 410 isolates the first elastic portion 4401 and the second elastic portion 4402 to prevent short circuit between the first elastic portion 4401 and the second elastic portion 4402.

[0110] The first end face 441 includes a first sub-end face 4411 and a second sub-end face 4412, and the second end face 442 includes a third sub-end face 4421 and a fourth sub-end face 4422. The first elastic portion 4401 includes a first sub-end face 4411 and a third sub-end face 4421 facing away from each other, and the second elastic portion 4402 includes a second sub-end face 4412 and a fourth sub-end face 4422 facing away from each other. The first conductive terminal 42 includes a first component 4201 and a second component 4202.

[0111] When the pressing member 45 is not pressed, the first sub-end face 4411 of the first elastic part 4401 contacts the first component 4201, and the second sub-end face 4412 of the second elastic part 4402 contacts the second component 4202; the third sub-end face 4421 of the first elastic part 4401 and the fourth sub-end face 4422 of the second elastic part 4402 both contact the second conductive terminal 43; when the pressing member 45 is pressed, the third sub-end face 4421 of the first elastic part 4401 and the fourth sub-end face 4422 of the second elastic part 4402 both disconnect from the second conductive terminal 43. Thus, by detecting the high and low voltage levels of the first component 4201 and the second component 4202, it can be determined whether the pressing member 45 of the detection switch 400 is pressed (i.e., the on / off state of the detection switch 400), thereby achieving position detection.

[0112] In one possible implementation, refer to Figure 17The first component 4201 includes: a seventh portion 4211 that contacts the first sub-end face 4411 of the first elastic portion 4401, an eighth portion 4212 extending from the seventh portion 4211, and a ninth portion 4213 extending from the eighth portion 4212.

[0113] Reference Figure 17 The second component 4202 includes: a tenth portion 4221 that contacts the second sub-end face 4412 of the second elastic portion 4402, an eleventh portion 4222 extending from the tenth portion 4221, and a twelfth portion 4223 extending from the eleventh portion 4222; the outer surfaces of the seventh portion 4211 and the tenth portion 4221 are located on the same surface of the insulating housing 41, the outer surfaces of the eighth portion 4212 and the eleventh portion 4222 are located on the same surface of the insulating housing 41, and the outer surfaces of the ninth portion 4213 and the twelfth portion 4223 are located on the same surface of the insulating housing 41; the outer surfaces of the seventh portion 4211, the eighth portion 4212, and the ninth portion 4213 are located on different surfaces of the insulating housing 41.

[0114] In this embodiment, multiple surfaces of the detection switch 400 expose a portion of the outer surface of the first component 4201 and a portion of the outer surface of the second component 4202. Thus, the portions of the first component 4201 and the second component 4202 exposed on different surfaces of the detection switch 400 can be used as welding points. The detection switch 400 can be installed using the welding points on different surfaces, resulting in a variety of installation methods that are applicable to various installation scenarios.

[0115] The second component 4202 further includes a sixteenth portion 4224 extending from the eleventh portion 4222 and disposed opposite to the twelfth portion 4223. The outer surface of the sixteenth portion 4224 is exposed outside the detection switch 400, serving as the outer surface of the detection switch 400.

[0116] In one possible implementation, refer to Figure 15 The second conductive terminal 43 includes: a thirteenth portion 4301 covering the first elastic portion 4401 and the second elastic portion 4402, and two fourteenth portions 4302 extending from one end of the thirteenth portion 4301 and spaced apart; the two fourteenth portions 4302 are in contact with the third sub-end face 4421 of the first elastic portion 4401 and the fourth sub-end face 4422 of the second elastic portion 4402, respectively.

[0117] Implementably, the second conductive terminal 43 also includes a plurality of fifteenth portions 4303 extending from opposite ends of the thirteenth portion 4301. The fifteenth portions 4303 are used to insert into slots in the insulating housing 41 to fix the second conductive terminal and the insulating housing 41 together. At the same time, the two fourteenth portions 4302 can also prevent the elastic member 44 from popping out.

[0118] In one possible implementation, the height of the insulating portion 410 is higher than the height of the first elastic portion 4401 and also higher than the height of the second elastic portion 4402. In this embodiment, the heights of both the first elastic portion 4401 and the second elastic portion 4402 are not higher than the height of the insulating portion 410, thus preventing the thirteenth portion 4301 of the second conductive terminal 43 from short-circuiting the two elastic portions.

[0119] The installation scenarios of the detection switch 400 mentioned in the above embodiments are described below:

[0120] like Figure 20 and Figure 21 As shown, the independent detection switch 400 can be installed on the side of the card slot 100 of the electronic device, and can be arranged on the left side (see reference). Figure 20 It can also be placed on the right (see reference). Figure 21 After installation, the length direction of the detection switch 400 is the same as the length direction of the card holder 100, which saves space on both sides of the card holder 100. After the card tray 200 is inserted into the card holder 100, the direction of the external force acting on the detection switch 400 is the same as the extension direction of the elastic component 44 inside the detection switch 400.

[0121] The following describes the combined use scenarios of the detection switch 400:

[0122] like Figure 22 and Figure 23 As shown, multiple independent small detection switches 400 can be combined to distinguish the manufacturer or type of the inserted device. For example, two detection switches 400, detection switches 4001 and 4002, are placed side by side. Due to the different notch designs of the external plugs from the two manufacturers, after insertion, external plugs from manufacturer 1 can only trigger detection switch 4001 and not detection switch 4002; external plugs from manufacturer 2 can only trigger detection switch 4002 and not detection switch 4001. Based on this, the electronic device can determine whether an external plug from manufacturer 1 or manufacturer 2 has been inserted by judging the status of detection switches 4001 and 4002.

[0123] For the same reason, different types of electronic devices can also have different notches on their plugs, so that the electronic device can identify which manufacturer's device is being inserted.

[0124] It should be understood that the above examples are provided to help those skilled in the art understand the embodiments of this application, and are not intended to limit the embodiments of this application to the specific values ​​or scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the above examples, and such modifications or changes also fall within the scope of the embodiments of this application.

[0125] The second aspect of this embodiment provides a switching component, such as... Figure 24 and Figure 25 As shown, the switch assembly includes: a detection switch 400 as described in any of the above embodiments, and a PCB board 50. The PCB board 50 is provided with a first pad 51 and a second pad 52 corresponding to the first conductive terminal 42 and the second conductive terminal 43 of the detection switch 400. The first conductive terminal 42 is connected to the first pad 51, and the second conductive terminal 43 is connected to the second pad 52.

[0126] The third aspect of this embodiment provides an electronic device, referring to the above... Figure 20 and Figure 21 As shown, the electronic device includes: a card holder 100, and a switch assembly as described above, the switch assembly being mounted in the card holder 100.

[0127] In one possible implementation, the electronic device further includes a card tray 200, which is mounted on the card holder 100. When the card tray 200 is inserted, the detection switch 400 of the switch assembly is in an open state. In the open state, the second end face 442 of the elastic member 44 of the detection switch 400 is disconnected from the second conductive terminal 43.

[0128] In one possible implementation, the electronic device further includes a power supply (not shown) and a processor (not shown). The power supply is connected to the detection switch 400 of the switching assembly to power the detection switch 400. The processor is connected to the PCB board 50 and is used to detect the level signal of the switching 400 assembly.

[0129] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of this application should be included within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A detection switch, characterized in that, The detection switch includes: an insulating housing having a first opening and a second opening, a first conductive terminal located in the first opening, and a second conductive terminal located in the second opening, wherein the first conductive terminal, the second conductive terminal, and the insulating housing constitute a cavity; The detection switch further includes: an elastic component located within the cavity, and a pressing component connected to the elastic component and extending out of the insulating housing from the second opening portion; The elastic component includes a first end face and a second end face facing away from each other. When the pressing component is not pressed, the first end face is in contact with the first conductive terminal, and the second end face is in contact with the second conductive terminal. When the pressing component is pressed, the second end face of the elastic component is disconnected from the second conductive terminal.

2. The detection switch according to claim 1, characterized in that, The elastic component is a strip-shaped, wavy, bent elastic sheet.

3. The detection switch according to claim 2, characterized in that, The width of the wavy bending spring ranges from 0.22 mm to 0.27 mm.

4. The detection switch according to any one of claims 1 to 3, characterized in that, The elastic component and the pressing component are integrally injection molded.

5. The detection switch according to any one of claims 1 to 4, characterized in that, The first conductive terminal and the insulating shell are integrally injection molded.

6. The detection switch according to any one of claims 1 to 5, characterized in that, The first conductive terminal includes: a first portion that contacts the first end face, a second portion and a third portion extending from the first portion, wherein the second portion and the third portion are disposed opposite to each other on the upper and lower sides of the elastic member; The outer surfaces of the first part, the second part, and the third part serve as the surfaces of the detection switch.

7. The detection switch according to claim 6, characterized in that, The second conductive terminal includes: a fourth portion that contacts the second end face, and a fifth portion extending from the fourth portion; The outer surface of the fifth part is located on the same surface of the insulating shell as the outer surface of the second part.

8. The detection switch according to any one of claims 1 to 6, characterized in that, The second conductive terminal includes: a fourth portion that contacts the second end face, and a sixth portion extending from the fourth portion. The insulating housing has a slot around the second opening, and the sixth part is located in the slot to fix the second conductive terminal to the insulating housing.

9. The detection switch according to any one of claims 1 to 5, characterized in that, The elastic component includes a first elastic portion and a second elastic portion, the pressing component connects the first elastic portion and the second elastic portion, and the insulating housing includes an insulating portion located between the first elastic portion and the second elastic portion; The first end face includes a first sub-end face and a second sub-end face, and the second end face includes a third sub-end face and a fourth sub-end face; the first elastic part includes: a first sub-end face and a third sub-end face facing away from each other, and the second elastic part includes a second sub-end face and a fourth sub-end face facing away from each other. The first conductive terminal includes a first component and a second component; when the pressing component is not pressed, the first sub-end face of the first elastic portion contacts the first component, and the second sub-end face of the second elastic portion contacts the second component; the third sub-end face of the first elastic portion and the fourth sub-end face of the second elastic portion both contact the second conductive terminal. When the pressing member is pressed, the third sub-end face of the first elastic part and the fourth sub-end face of the second elastic part are both disconnected from the second conductive terminal.

10. The detection switch according to claim 9, characterized in that, The first component includes: a seventh portion that contacts the first sub-end face of the first elastic portion, an eighth portion extending from the seventh portion, and a ninth portion extending from the eighth portion; The second component includes: a tenth portion that contacts the second sub-end face of the second elastic portion, an eleventh portion extending from the tenth portion, and a twelfth portion extending from the eleventh portion; The outer surfaces of the seventh part and the tenth part are located on the same surface of the insulating shell, the outer surfaces of the eighth part and the eleventh part are located on the same surface of the insulating shell, and the outer surfaces of the ninth part and the twelfth part are located on the same surface of the insulating shell. The outer surfaces of the seventh part, the eighth part, and the ninth part are located on different surfaces of the insulating shell.

11. The detection switch according to claim 9 or 10, characterized in that, The second conductive terminal includes: a thirteenth portion covering the first elastic portion and the second elastic portion, and two fourteenth portions connected to one end of the thirteenth portion and spaced apart; The two fourteenth parts respectively contact the third sub-end face of the first elastic part and the fourth sub-end face of the second elastic part.

12. The detection switch according to claim 11, characterized in that, The height of the insulating portion is higher than the height of the first elastic portion and also higher than the height of the second elastic portion.

13. A switching assembly, characterized in that, The switch assembly includes: a detection switch as described in any one of claims 1 to 12, and a PCB board, wherein the PCB board is provided with a first pad and a second pad corresponding to a first conductive terminal and a second conductive terminal of the detection switch, the first conductive terminal being connected to the first pad and the second conductive terminal being connected to the second pad.

14. An electronic device, characterized in that, The electronic device includes: a card holder, and a switch assembly as described in claim 13, the switch assembly being mounted on the card holder.

15. The electronic device according to claim 14, characterized in that, The electronic device further includes a card tray mounted on the card holder. When the card tray is inserted, the detection switch of the switch assembly is in an open state. In the open state, the second end face of the elastic member of the detection switch is disconnected from the second conductive terminal.

16. The electronic device according to claim 14, characterized in that, The electronic device further includes a power supply and a processor. The power supply is connected to the detection switch of the switching assembly to supply power to the detection switch. The processor is connected to the PCB board and is used to detect the level signal of the switching assembly.

Images