Travel switch and universal substrate thereof

Abstract

The utility model discloses a travel switch and a universal substrate thereof, the universal substrate is used for the travel switch, the universal substrate is provided with a top and a bottom, a main mounting groove is formed between the top and the bottom of the universal substrate and used for mounting a movable switch-on assembly of the travel switch, and a through groove is formed in the middle of the top and used for mounting the movable switch-on assembly of the travel switch. Wherein the through groove is arranged to be communicated with the main mounting groove, so that the main mounting groove can be communicated with the outside through the through groove, static mounting parts are formed on the left side and the right side of the universal base plate respectively to form a pair of static mounting parts, the static mounting parts on the left side and the right side of the universal base plate are mutually symmetrical, and the static mounting parts on the left side and the right side of the universal base plate are mutually symmetrical. A communicating gap is formed in each of the upper side and the lower side, close to the main mounting groove, of the static mounting part on each side, and each communicating gap is arranged to communicate with the main mounting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical switches, in particular to a travel switch and a universal substrate thereof. Background Art

[0002] Electrical switches, especially travel switches, are widely used in various fields. There are many existing models of travel switches, such as type ZA and type ZB. These different models of travel switches are usually used in different scenarios. In addition, for the same type of switch, when it is set as a multi-way type, there are also many differences in the wiring methods.

[0003] Due to the existence of such differences, there are various travel switches in the prior art. These travel switches have different structures due to different model differences and wiring method differences. In this way, it is necessary to open many different types of molds to be suitable for making different styles of the formed switches. In this way, it will inevitably lead to an increase in the manufacturing cost of travel switches. Summary of the Utility Model

[0004] One advantage of the utility model is to provide a travel switch and a universal substrate thereof, wherein the universal substrate can be suitable for assembling and forming travel switches of various different models and wiring methods.

[0005] Another advantage of the utility model is to provide a travel switch and a universal substrate thereof, wherein the universal substrate can be suitable for assembling and forming an instantaneous travel switch.

[0006] Another advantage of the utility model is to provide a travel switch and a universal substrate thereof. Since the universal substrate can be suitable for assembling and forming travel switches of various different models and wiring methods, the manufacturing cost of various travel switches can be greatly reduced.

[0007] To achieve at least one of the above advantages, the utility model provides a universal substrate for a travel switch. The universal substrate has a top and a bottom. A main installation groove is formed between the top and the bottom of the universal substrate for installing the moving contact component of the travel switch. A through groove is formed in the middle of the top, and the through groove is set to communicate with the main installation groove, so that the main installation groove can communicate with the outside through the through groove. Static installation parts are respectively formed on the left and right sides of the universal substrate to form a pair of the static installation parts. The static installation parts on the left and right sides of the universal substrate are symmetrical to each other. A communication gap is respectively formed on the upper and lower sides of each static installation part close to the main installation groove, and each communication gap is set to communicate with the main installation groove.

[0008] According to an embodiment of the present utility model, a plurality of pairs of static mounting portions are symmetrically formed between the top and the bottom of the general substrate.

[0009] According to an embodiment of the present utility model, a threaded hole is provided at a position corresponding to a first through hole formed by a fixed portion of a static contact piece in a static connection assembly of the travel switch on the static mounting portion of the general substrate.

[0010] According to an embodiment of the present utility model, a nut is embedded in the static mounting portion to form the threaded hole.

[0011] According to an embodiment of the present utility model, a stop platform is formed at a position on the top of the general substrate corresponding to a stop portion on an actuating rod of the dynamic connection assembly.

[0012] According to an embodiment of the present utility model, the general substrate forms a limiting platform, wherein a through slot opening is formed in the limiting platform, and the through slot opening and the through slot are coaxially arranged.

[0013] According to an embodiment of the present utility model, a partition block is formed by extending from a vertical direction perpendicular to the general substrate at a middle portion of the main mounting groove near the static mounting portion and between two communication gaps on the upper and lower sides of the static mounting portion.

[0014] According to an embodiment of the present utility model, a pair of magnet mounting grooves are formed between a side wall of the static mounting portion between two communication gaps and close to the main mounting groove and the partition block.

[0015] According to an embodiment of the present utility model, each of the magnet mounting grooves can be separately formed on a side wall of the static mounting portion between two communication gaps and close to the main mounting groove.

[0016] To achieve at least one of the above advantages, the present utility model provides at least one travel switch, and the travel switch includes:

[0017] The general substrate as described in any one of the above;

[0018] At least a pair of static connection assemblies, each of the static connection assemblies includes a static contact piece, wherein the static contact piece includes a fixed portion and a static contact portion, wherein the fixed portion is mounted on the static mounting portion, and wherein the static contact portion is arranged to extend into the main mounting groove through one of the communication gaps on the upper and lower sides of the static mounting portion on the general substrate;

[0019] Moving connection component, the moving connection component includes a moving contact member and an actuating rod, wherein the moving contact member includes a moving contact piece, wherein moving contacts are respectively formed at positions on both sides of the moving contact piece opposite to the static contact points formed with the static contact pieces, and a through window is formed in the middle of the moving contact piece. The actuating rod is arranged in the main installation groove, and one end can be connected to an external power component through the through groove. Description of the Drawings

[0020] Figure 1 The perspective view of the travel switch of the present utility model is shown.

[0021] Figure 2 The exploded view of a part of the structure of the travel switch of the present utility model in one state is shown.

[0022] Figure 3 The exploded view of a part of the structure of the travel switch of the present utility model in another state is shown.

[0023] Figure 4 The perspective view of the housing of the travel switch of the present utility model is shown.

[0024] Figure 5 The perspective view of a part of the structure of the travel switch of the present utility model is shown.

[0025] Figure 6 The perspective view of the first embodiment of the travel switch of the present utility model is shown.

[0026] Figure 7 The travel switch of the present utility model is shown Figure 6 The cross-sectional view in the A-A direction.

[0027] Figure 8 The perspective view of the travel switch of the second embodiment of the present utility model in the first state is shown.

[0028] Figure 9 The perspective view of the travel switch of the second embodiment of the present utility model in the second state is shown.

[0029] Figure 10 The perspective view of the travel switch of the second embodiment of the present utility model in the third state is shown.

[0030] Figure 11 The perspective view of the travel switch of the third embodiment of the present utility model in the third state is shown. Detailed Description of the Invention

[0031] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description of the present utility model can be applied to other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present utility model.

[0032] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0033] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0034] Reference Figures 1 to 11 , a travel switch according to a preferred embodiment of the present utility model will be elaborated in detail below. Specifically, the travel switch can be used for connection with external circuits, so that the on / off of the external circuit can be achieved through the on / off of the travel switch.

[0035] The travel switch includes a general substrate 10, a moving contact assembly 20, and at least a pair of static contact assemblies 30. The general substrate 10 has a top 11 and a bottom 12. A main installation groove 101 is formed between the top 11 and the bottom 12 of the general substrate 10 for installing the moving contact assembly 20, and a through groove 102 is formed in the middle of the top 11. The through groove 102 is arranged to communicate with the main installation groove 101, so that the main installation groove 101 can communicate with the outside through the through groove 102.

[0036] Furthermore, static installation parts 103 are respectively formed on the left and right sides of the general substrate 10 to form a pair of the static installation parts 103, and the static installation parts 103 on the left and right sides of the general substrate 10 are symmetrical to each other.

[0037] Further, on each side, the static mounting portion 103 forms a communication gap 104 on the upper and lower sides close to the main mounting groove 101, and each of the communication gaps 104 is arranged to communicate with the main mounting groove 101. As shown in the figure, on each static mounting portion 103 of the general substrate 10, a first communication gap 104A is formed on the upper side close to the main mounting groove 101, and a second communication gap 104B is formed on the lower side close to the main mounting groove 101.

[0038] Preferably, the general substrate 10 symmetrically forms multiple pairs of the static mounting portions 103 between the top 11 and the bottom 12, and the multiple pairs of symmetrically arranged static mounting portions 103 are spaced apart between the top 11 and the bottom 12.

[0039] In a preferred embodiment, the general substrate 10 symmetrically forms four pairs of the static mounting portions 103 between the top 11 and the bottom. More preferably, the four pairs of static mounting portions 103 are equidistantly arranged between the top 11 and the bottom 12.

[0040] It is worth mentioning that each static connection component 30 includes a static contact piece 31, and the static contact piece 31 includes a fixing portion 311 and a static contact portion 312. The fixing portion 311 is mounted on the static mounting portion 103, and the static contact portion 312 is arranged to pass through one of the communication gaps 104 on the upper and lower sides of the static mounting portion 103 on the general substrate 10 and extend into the main mounting groove 101. That is to say, the static contact portion 312 is either arranged to pass through the first communication gap 104A of the general substrate 10 or arranged to pass through the second communication gap 104B of the general substrate 10, so as to form a pair of static contacts at symmetric positions in the main mounting groove 101.

[0041] Specifically, the fixing portion 311 is arranged to extend along the plane direction of the general substrate 10, and the contact portion is arranged to extend from the end of the fixing portion 311 in a direction perpendicular to the plane of the substrate 10 and cross the corresponding communication gap 104, and then enter the main mounting groove 101.

[0042] Preferably, the static connection component 30 further includes a fixing member 32, and the fixing portion 311 of each static contact piece 31 is arranged to be fixed to the static mounting portion 103 through the fixing member 32.

[0043] Specifically, in one embodiment, the fixing portion 311 is provided with a first through hole 31101. The fixing member 32 includes a screw 321. A threaded hole 105 is provided at a position corresponding to the first through hole 31101 on the static mounting portion 103 of the general substrate 10. The screw 321 is arranged to pass through the first through hole 31101 and then be threadedly connected to the threaded hole 105, so that the static contact piece 31 is threadedly fixed to the general substrate 10.

[0044] Preferably, the fixing member 32 further includes a nut 322, and the nut 322 is embedded in the static mounting portion 103 to form the threaded hole 105.

[0045] Further, the fixing member 32 further includes an auxiliary conductive sheet 33, and the auxiliary conductive sheet 33 is arranged on the upper part of the fixing portion 311 of the static contact piece 31. A second through hole 3301 aligned with the first through hole 31101 is also formed in the middle of the auxiliary conductive sheet 33. The nut 322 is arranged to pass through the second through hole 3301 and the first through hole 31101 and then be threadedly connected to the threaded hole 105.

[0046] It is worth mentioning that in the present utility model, since the first through hole 31101 and the second through hole 3301 are both provided as light holes instead of threaded holes, during the subsequent process of rotating the nut 322, the static contact piece 31 has good stability and is not easily rotated along with the rotation of the nut 322, thereby effectively ensuring the stability of the position of the static contact on the static contact piece 31.

[0047] Those skilled in the art can understand that since the static contact piece 31 can be arbitrarily installed in the first communication gap 104A and the second communication gap 104B, the travel switch can be used to make travel switches of different models. Especially when the forming switch includes multiple pairs of the static connection components 30.

[0048] More specifically, the moving connection component 20 includes a moving contact member 21 and an actuating rod 22. The moving contact member 21 includes a moving contact piece 211. Moving contacts are respectively formed at positions on both sides of the moving contact piece 211 opposite to the static contacts. In addition, a through window 21101 is formed in the middle of the moving contact piece 211.

[0049] The actuating rod 22 is arranged in the main mounting groove 101, and one end can be connected to an external power component through the through groove 102.

[0050] It is worth mentioning that when the actuating rod 22 is driven by the power component, it can slide relative to the general substrate 10 in the main mounting groove 101 along the axial direction defined by the extension direction of the actuating rod 22 itself. The actuating rod 22 is arranged to pass through the through window 21101 of the moving contact piece 211 mounted in the main mounting groove 101.

[0051] The moving contact member 21 further includes at least a pair of instantaneous movement members 212. Each of the instantaneous movement members 212 includes a driving arm 2121 and an energy storage elastic member 2122. One end of the driving arm 2121 of one of the instantaneous movement members 212 in each pair of the instantaneous movement members 212 is rotatably connected to one side wall forming the through window 21101, and the other end is rotatably connected to the side wall of the actuating rod 22. The extension direction of the driving arm 2121 forms a predetermined angle with the axial direction; one end of the driving arm 2121 of the other instantaneous movement member 212 is rotatably connected to the other side wall forming the through window 21101 and is symmetrical to the driving arm 2121 of the instantaneous movement member 212 on one side with respect to the axial direction.

[0052] The energy storage elastic member 2122 is sleeved on the driving arm 2121 in an elastically deformed manner so as to have different elastic potential energies through its own expansion and contraction when the driving arm 2121 rotates.

[0053] Those skilled in the art can understand that when the actuating rod 22 slides along the axial direction and the sliding stroke is large enough, the driving arm 2121 will rotate due to the destruction of the equilibrium state of the energy storage elastic member 2122, so that the driving arm 2121 drives the moving contact piece 211 to move instantaneously.

[0054] In other words, when the sliding stroke of the actuating rod 22 along the axial direction is less than the stroke required to overcome the rotation of the driving arm 2121 of the instantaneous movement member 212 to drive the moving contact piece 211 to move instantaneously, even if the actuating rod 22 moves, the moving contact on the moving contact piece 211 still does not conduct with the static contact piece 31. Until the sliding stroke of the actuating rod 22 along the axial direction is greater than the stroke required to overcome the rotation of the driving arm 2121 of the instantaneous movement member 212 to drive the moving contact piece 211 to move instantaneously, the moving contact on the moving contact piece 211 instantaneously conducts with the static contact piece 31. In this way, the arc generated during creep can be avoided.

[0055] Specifically, in a preferred embodiment, the structure of the instantaneous movement member 212 is the same as the structure in the publication number CN214279826U.

[0056] In another preferred embodiment, the travel switch includes at least two of the moving contact members 21, each of which is disposed between the top 11 and the bottom 12. Meanwhile, the travel switch correspondingly includes at least two pairs of the static connection assemblies 30.

[0057] Reference Figures 8 - 10 , more preferably, among the plurality of moving contact members 21 arranged along the axial direction of the actuating rod 22, the travel distances for driving the moving contact piece 211 to instantaneously move by overcoming the rotation of the driving arm 2121 of the snap-action member 212 increase in sequence. That is to say, in one embodiment, when the actuating rod 22 moves a first distance, among the plurality of moving contact members 21 arranged along the axial direction of the actuating rod 22, the driving arm 2121 of the nearest first snap-action member 212 rotates to drive the moving contact piece 211 to instantaneously move and conduct with the corresponding static contact, while the other moving contact pieces 211 remain disconnected from the static contact. When the actuating rod 22 moves another first distance, among the plurality of moving contact members 21 arranged along the axial direction of the actuating rod 22, the driving arm 2121 of the second snap-action member 212 rotates to drive the moving contact piece 211 to instantaneously move and conduct with the corresponding static contact. At the same time, the moving contact piece 211 connected to the driving arm 2121 of the first snap-action member 212 remains conducting with the static contact, while the other moving contact pieces 211 remain disconnected from the static contact. The subsequent moving contact members 21 and the static contact piece can be gradually and instantaneously conducted as the actuating rod 22 moves.

[0058] Reference Figure 8 and Figure 11 , in another embodiment, among the plurality of moving contact members 21 arranged along the axial direction of the actuating rod 22, the travel distance for driving the moving contact piece 211 to instantaneously move by overcoming the rotation of the driving arm 2121 of the snap-action member 212 in at least one moving contact member 21 is smaller than that in the moving contact member 21 on the left and larger than that in the moving contact member 21 on the right. In this way, as the actuating rod 22 moves, the moving contact piece 211 in at least one moving contact member 21 is conducted earlier than the moving contact piece 211 of the contact assembly 30 on the left and later than the moving contact piece 211 of the moving contact member 21 on the right, so as to form a spare wiring mechanism, and thus cross snap-action can be achieved.

[0059] Furthermore, the actuating rod 22 has a head 221 and a tail 222, wherein the tail 222 extends in a radial direction to form a stopper 223. In addition, the universal base plate 10 forms a stopper 13 at a position corresponding to the stopper 223 of the actuating rod 22 in the main mounting groove 101, wherein the stopper 13 is arranged to extend from a housing forming the universal base plate 10 to a predetermined height in a vertical direction perpendicular to the universal base plate 10.

[0060] After the moving contact member 21 and the actuating rod 22 are mounted on the universal substrate 10, the side of the stopper 223 of the actuating rod 22 facing the head 221 is partially abutted against the side of the stopper 13 away from the head 221. It can be understood by those skilled in the art that, in this way, when the actuating rod 22 is driven to move, the stopper 13 can limit it.

[0061] The dynamic connection assembly 20 includes a return spring 23, and the actuating rod 22 is resettably limited in the main installation groove 101 of the universal base plate 10 by the return spring 23. It is worth mentioning that one end of the return spring 23 is abutted against the stopper 223 of the tail 222, and the other end is abutted against the universal base plate 10, and the return spring 23 is installed in the universal base plate 10.

[0062] It is worth mentioning that the head 221 of the actuating rod 22 is arranged to at least partially extend beyond the through slot 102 of the top 11 and out of the main mounting slot 101 of the universal base plate 10, and the cross-sectional size of the formed through slot 102 is just equal to the cross-sectional size of the main body of the actuating rod 22 located between the head 221 and the tail 222, so as to limit the position of the actuating rod 22 close to the head 221 to ensure that the actuating rod 22 can keep sliding in the axial direction when being driven to slide.

[0063] Furthermore, the universal base plate 10 forms a limiting platform 14, wherein the limiting platform 14 forms a through slot 1401, and the through slot 1401 is coaxially arranged with the through slot 102. The cross-sectional dimension of the through slot 1401 is equal to the cross-sectional dimension of the main body portion of the actuating rod 22 close to the tail portion 222, so as to limit the position of the actuating rod 22 close to the tail portion 222, so as to ensure that the actuating rod 22 can keep sliding in the axial direction when being driven to slide.

[0064] More preferably, the general substrate 10 forms a partition block 15 extending from the vertical direction perpendicular to the general substrate 10 at the middle part of the main installation groove 101 near the static installation part 103 and between the two communication gaps 104 on the upper and lower sides of the static installation part 103. In this way, the moving contact piece 211 of the moving contact member 21 can also be blocked by the partition block 15 and be in an open state.

[0065] In this way, the moving contact member 21 and the actuating rod 22 can be set as needed, so that the moving contact piece 211 of the moving contact member 21 can be conducted with the upper and lower different static contact pieces 31 when being touched and reset. It can also make the moving contact piece 211 of the moving contact member 21 be conducted with the upper or lower static contact piece 31 when being touched or reset, and in another state, be abutted against the upper or lower partition block 15. In this way, the general substrate 10 can be adapted to manufacture a travel switch of type ZA or ZB, and can also be used to manufacture other types of switches. This can greatly save the manufacturing cost.

[0066] Further, the travel switch further includes a housing 40, wherein the housing 40 is arranged to cover the notch of the main installation groove 101.

[0067] Preferably, a plurality of stop feet 41 are integrally extended from the housing 40 on the housing 40, and each of the stop feet 41 is arranged at the communication gap 104 where the static contact piece 31 is not installed. Those skilled in the art can understand that in this way, it can effectively prevent external dust and conductive chips from entering the main installation groove 101 through the communication gap 104.

[0068] In a preferred embodiment, a magnet installation groove 107 is formed between the two communication gaps 104 on the static installation part 103 and near the side wall of the main installation groove 101 and the partition block 15. At least one magnet 50 is installed in each magnet installation groove 107. Specifically, the magnetic pole direction of the installed magnet 50 is set to be a transverse direction perpendicular to the extending direction of the actuating rod 22. In this way, when an electric arc of electric ionization is generated between the static contact piece 31 and the moving contact piece 211, the corresponding arc will be affected by the magnetic field force and be led to be extinguished to the general substrate 10 or the housing 40.

[0069] More importantly, since the magnetic pole direction of the installed magnet 50 is set to be a transverse direction perpendicular to the extending direction of the actuating rod 22, when wiring a pair of the static contact pieces 31, there is no need to consider the positive and negative poles of the wiring.

[0070] In this way, the permanent magnet can effectively reduce the arc generated when the static contact piece 31 contacts the moving contact piece 211.

[0071] In a modified embodiment, each magnet mounting groove 107 can be separately formed on the static mounting portion 103 between two of the communication gaps 104 and close to the side wall of the main mounting groove 101.

[0072] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the principle.

Claims

1. A universal substrate for a travel switch, characterized in that: The universal substrate has a top and a bottom, wherein the universal substrate forms a main mounting groove between the top and the bottom for mounting the movable connection component of the travel switch, and forms a through groove in the middle of the top, wherein the through groove is arranged to be connected with the main mounting groove, so that the main mounting groove can be connected with the outside through the through groove, and the universal substrate forms a static mounting portion on the left and right sides respectively to form a pair of static mounting portions, wherein the static mounting portions on the left and right sides of the universal substrate are symmetrical with each other, and the static mounting portions on each side form a connecting gap on the upper and lower sides close to the main mounting groove, respectively, wherein each connecting gap is arranged to be connected with the main mounting groove.

2. The universal substrate according to claim 1, characterized in that: The common base plate forms a plurality of pairs of the stationary mounting portions symmetrically disposed between the top portion and the bottom portion.

3. The universal substrate according to claim 1, characterized in that: A threaded hole is arranged at a position corresponding to the first through hole formed by the static mounting portion of the universal substrate and the fixing portion of the static contact piece in the static connection component of the travel switch.

4. The universal substrate according to claim 3, characterized in that: A nut is embedded in the static mounting portion to form the threaded hole.

5. The universal substrate according to claim 1, characterized in that: The universal base plate forms a stop platform at a position on the top corresponding to the stop portion on the actuating rod of the dynamic connection component.

6. The universal substrate according to claim 1, characterized in that: The universal base plate forms a limiting platform, wherein the limiting platform forms a through slot, and the through slot and the through slot are coaxially arranged.

7. The universal substrate according to any one of claims 1 to 6, characterized in that: The universal base plate is located in the main installation slot near the static installation portion and in the middle between the two communicating gaps on the upper and lower sides of the static installation portion, and extends in a vertical direction perpendicular to the universal base plate to form a separation stopper.

8. The universal substrate according to claim 7, characterized in that: A pair of magnet installation grooves are formed on the static installation portion between the two communicating gaps and between the side wall close to the main installation groove and the separation block.

9. The universal substrate according to any one of claims 1 to 6, characterized in that: A side wall of the static mounting portion between the two communicating gaps and close to the main mounting groove can form a magnet mounting groove for each magnet.

10. A travel switch, characterized in that: The travel switch comprises: The universal substrate as claimed in any one of claims 1 to 9; At least one pair of static contact components, each of which includes a static contact sheet, wherein the static contact sheet includes a fixed portion and a static contact portion, wherein the fixed portion is mounted on the static mounting portion, wherein the static contact portion is arranged to pass through one of the communication gaps on the upper and lower sides of the static mounting portion on the universal substrate and extend into the main mounting slot; A dynamic connection component, the dynamic connection component includes a dynamic contact component and an actuating rod, wherein the dynamic contact component includes a dynamic contact piece, wherein two sides of the dynamic contact piece are opposite to the static contacts formed by the static contact piece to form a dynamic contact, and a through window is formed in the middle of the dynamic contact piece. The actuating rod is arranged in the main mounting groove, and one end can be connected to an external power component through the through groove.

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