Rotary switch

Abstract

The utility model relates to the technical field of switches, and discloses a rotary switch which comprises a shell, a cover body is arranged on one side of the shell, a mounting groove is formed in the end face, facing the cover body, of the shell, a first conductive part, a second conductive part and a third conductive part are arranged in the shell, and a driving part is rotationally connected in the shell; the first conductive piece comprises a first static contact piece, the second conductive piece comprises a second insertion piece arranged in the mounting groove, one end of the second insertion piece is provided with a first bending piece, one side, far away from the second insertion piece, of the first bending piece is provided with a first movable contact piece, and the first bending piece is in a bending deformation state; the first bending sheet can drive the first moving contact to move towards the first static contact, the driving member can drive the first moving contact to move away from the first static contact, and the rotary switch assembly efficiency can be improved.

Description

Technical Field

[0001] This application relates to the technical field of switches, and in particular to a rotary switch. Background Art

[0002] A rotary switch is a switch that controls the on / off of the main contact by rotating a handle.

[0003] In the related art, Chinese Patent No. CN218887043U discloses a knob switch with stable contact, including a housing, an operating rod rotatably arranged in the housing, a static contact piece located in the housing, and a moving contact piece located in the housing. A gear slot is provided at one end of the operating rod located in the housing, and a resisting bridge for inserting into the gear slot is formed on one side of the moving contact piece facing the operating rod; one end of the moving contact piece away from the static contact piece is rotatably arranged on the housing, and a driving spring for pushing the moving contact piece to rotate towards the static contact piece is arranged on the inner side wall of the housing.

[0004] In the assembly of the existing rotary switch, parts such as the operating rod, moving contact piece, static contact piece, and driving spring need to be installed in the housing, and then the cover is covered on the housing. The above-mentioned rotary switch has many assembly parts and a long assembly time, so it needs to be improved. Utility Model Content

[0005] In order to improve the assembly efficiency of the rotary switch, this application provides a rotary switch.

[0006] A rotary switch provided by this application adopts the following technical solutions:

[0007] A rotary switch includes a housing, a cover is arranged on one side of the housing, an installation groove is provided on the end face of the housing facing the cover, a first conductive member, a second conductive member, and a third conductive member are arranged in the housing, and a driving member is rotatably connected in the housing; the first conductive member includes a first static contact piece, the second conductive member includes a second insertion piece arranged in the installation groove, one end of the second insertion piece is provided with a first bending piece, a first moving contact piece is arranged on the side of the first bending piece away from the second insertion piece, the first bending piece is in a bent and deformed state, the first bending piece can drive the first moving contact piece to move towards the first static contact piece, and the driving member can drive the first moving contact piece to move away from the first static contact piece.

[0008] By adopting the above technical solutions, the first bending piece is designed as an elastic component, so that the first moving contact piece itself can make the first moving contact piece abut against the driving member, without the need to rely on other elastic components to apply force to the first moving contact piece. This enables the reduction of the spring part in the rotary switch, saves the time for assembling the rotary switch, improves the assembly efficiency of the rotary switch, and reduces the production cost of the rotary switch.

[0009] Optionally, the first movable contact piece and the second insertion piece are integrally formed.

[0010] By adopting the above technical solution, the integral molding improves the integrity of the product, eliminates multiple sets of molds and equipment in traditional manufacturing, reduces the production cost, and improves the production efficiency.

[0011] Optionally, the thickness of the second insertion piece is twice the thickness of the first movable contact piece.

[0012] By adopting the above technical solution, the production cost of the second conductive part is reduced.

[0013] Optionally, the second insertion piece is provided with a first positioning block in the width direction, and a first positioning groove for inserting the first positioning block is formed in the bottom wall of the installation groove.

[0014] By adopting the above technical solution, the first positioning block and the first positioning groove cooperate to position the second conductive part when the second conductive part is installed on the housing.

[0015] Optionally, the first movable contact piece includes a first arched portion connected to a side of the first bending piece away from the second insertion piece, and a first conductive portion is provided at an end of the first arched portion away from the first bending piece; the first bending piece is used to drive the first arched portion to abut against the driving member.

[0016] By adopting the above technical solution, the first bending piece applies a force to the first arched portion, so that the first arched portion always abuts against the driving member, that is, the driving member can drive the first movable contact piece to move.

[0017] Optionally, the driving member includes an operating rod rotatably connected to the housing, an operating ring is provided on an outer circumferential surface of the operating rod, a first insertion slot for inserting the first arched portion is formed on an outer circumferential surface of the operating ring, and a fixing slot for inserting the operating ring is formed in the bottom wall of the installation groove.

[0018] By adopting the above technical solution, when the first insertion slot is aligned with the first arched portion, the first bending piece drives the first arched portion to insert into the first insertion slot.

[0019] Optionally, a limiting block is provided on an end face of the operating ring facing the bottom wall of the fixing slot, an arc-shaped limiting groove is formed in the bottom wall of the fixing slot, and the limiting block is slidably arranged in the limiting groove.

[0020] By adopting the above technical solution, the limiting block and the limiting groove are provided, which have a limiting effect and facilitate the alignment of the first arched portion with the first insertion slot or the alignment of the second arched portion with the second insertion slot.

[0021] Optionally, the first arched portion is V-shaped.

[0022] By adopting the above technical solution, the first arched portion with a V-shaped design facilitates the detachment of the first arched portion from the first slot when the operating rod rotates.

[0023] Optionally, a locking structure for connecting the cover and the housing is provided between the cover and the housing. The locking structure includes a first locking block and a second locking block disposed on the side of the cover facing the housing. A first locking groove for inserting the first locking block and a second locking groove for inserting the second locking block are formed on the housing.

[0024] By adopting the above technical solution, when connecting the cover and the housing, insert the first locking block into the first locking groove and the second locking block into the second locking groove until the cover abuts against the housing, thereby realizing the fixed connection between the housing and the cover.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Design the first bending piece as an elastic component, enabling the first moving contact piece itself to abut against the driving member without the need to apply a force to the first moving contact piece by means of other elastic members. This allows the reduction of the spring component in the rotary switch, saving the time for assembling the rotary switch, accelerating the assembly efficiency of the rotary switch, and reducing the production cost of the rotary switch.

[0027] 2. The second conductive member is formed by bending a thinner metal sheet, reducing the material required for the second conductive member and lowering the production cost of the second conductive member. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0030] Figure 2 is an exploded view highlighting the connection relationship between the housing and the cover;

[0031] Figure 3 is a schematic structural diagram highlighting the housing;

[0032] Figure 4 is a schematic structural diagram highlighting the driving member.

[0033] Reference numerals: 1, housing; 11, first locking groove; 12, second locking groove; 13, mounting groove; 14, fixing groove; 15, mounting hole; 16, first positioning groove; 17, second positioning groove; 18, limiting groove; 2, cover body; 21, first clamping groove; 22, second clamping groove; 3, locking structure; 31, first locking block; 32, second locking block; 4, first conductive member; 41, first insertion piece; 42, first static contact piece; 43, second static contact piece; 5, second conductive member; 51, second insertion piece; 511, first positioning block; 52, first bending piece; 53, first moving contact piece; 531, first arching portion; 532, first conductive portion; 6, third conductive member; 61, third insertion piece; 611, second positioning block; 62, second bending piece; 63, second moving contact piece; 631, second arching portion; 632, second conductive portion; 7, driving member; 71, operating rod; 72, operating ring; 721, first slot; 722, second slot; 73, limiting block. Detailed implementation manners

[0034] The following will further elaborate on this application Figures 1-4 with reference to the accompanying drawings.

[0035] This embodiment discloses a rotary switch. Referring to Figure 1 , a rotary switch includes a housing 1 and a cover body 2, and both the housing 1 and the cover body 2 are plastic parts.

[0036] Referring to Figure 1 and Figure 2 , a locking structure 3 for connecting the two is provided between the housing 1 and the cover body 2. The end face of the housing 1 facing the cover body 2 is provided with a first locking groove 11 and a second locking groove 12. The locking structure 3 includes a first locking block 31 and a second locking block 32, and both the first locking block 31 and the second locking block 32 are fixedly connected to the end face of the cover body 2 facing the housing 1. The first locking block 31 can be inserted into the first locking groove 11, and the second locking block 32 can be inserted into the second locking groove 12.

[0037] Referring to Figure 1 and Figure 2 , the cross-section of the first locking block 31 is different from that of the second locking block 32, which can play an anti-misassembly role when the cover body 2 and the housing 1 are assembled. In other implementation manners, the shape of the first locking block 31 is the same as that of the second locking block 32, and the first locking block 31 and the second locking block 32 are circumferentially arrayed along the central axis of the cover body 2, so that both the first locking groove 11 and the second locking groove 12 can be adapted to the first locking block 31, and both the first locking groove 11 and the second locking groove 12 can be adapted to the second locking block 32, enabling the housing 1 and the cover body 2 to have two installation methods.

[0038] Referring to Figure 2, a first conductive member 4, a second conductive member 5, a third conductive member 6, and a driving member 7 are provided inside the housing 1. The driving member 7 can electrically connect either the second conductive member 5 or the third conductive member 6 to the first conductive member 4, or can make both the second conductive member 5 and the third conductive member 6 not in contact with the first conductive member 4.

[0039] Referring to Figure 1 and Figure 3 , an installation groove 13 is formed on the end face of the housing 1 facing the cover 2, a fixing groove 14 is formed on the bottom wall of the installation groove 13, and an installation hole 15 is formed on the bottom wall of the fixing groove 14.

[0040] Referring to Figure 2 and Figure 3 , the first conductive member 4 is assembled in the installation groove 13. The first guiding member includes a first insertion piece 41, a first static contact piece 42, and a second static contact piece 43. One end of the first insertion piece 41 passes through the housing 1 and extends outside the housing 1.

[0041] Referring to Figure 2 , both the first static contact piece 42 and the second static contact piece 43 are fixedly connected to the end face of the first insertion piece 41 facing the driving member 7. The first locking groove 11 is located between the first static contact piece 42 and the second static contact piece 43.

[0042] Referring to Figure 2 and Figure 3 , the second conductive member 5 is assembled in the installation groove 13. The second conductive member 5 is elastic. The second conductive member 5 is formed by bending a metal sheet. The second conductive member 5 includes an integrally formed second insertion piece 51, a first bending piece 52, and a first moving contact piece 53.

[0043] Referring to Figure 2 , the second insertion piece 51 is folded from a metal sheet so that the thickness of the second insertion piece 51 is twice the thickness of the first moving contact piece 53, which can save the material required for the second conductive member 5 while meeting the standard of the electrical component joint, that is, reduce the production cost of the second conductive member 5.

[0044] Referring to Figure 2 and Figure 3 , the second insertion piece 51 is located on the side of the first locking groove 11 facing the first static contact piece 42. One end of the second insertion piece 51 passes through the housing 1 and extends outside the housing 1. First positioning blocks 511 are fixedly connected to both end faces of the second insertion piece 51 in the width direction. A first positioning groove 16 is formed on the bottom wall of the installation groove 13, and the first positioning groove 16 can accommodate the first positioning blocks 511. A first card slot 21 is formed on the end face of the cover 2 facing the housing 1, and the first card slot 21 can accommodate the first positioning blocks 511.

[0045] Referring to Figure 2, the first bending piece 52 is located at one end of the second inserting piece 51 in the length direction, and the first bending piece 52 is located in the installation groove 13.

[0046] Refer to Figure 2 , the first moving contact piece 53 includes a first arching portion 531 and a first conductive portion 532. The first arching portion 531 is fixedly connected to the end face of the first bending piece 52 away from the second inserting piece 51, and the first arching portion 531 is V-shaped.

[0047] Refer to Figure 2 , the first conductive portion 532 is fixedly connected to the end face of the first arching portion 531 away from the first bending piece 52, and the first conductive portion 532 is located on the side of the first static contact piece 42 away from the first locking groove 11. The first moving contact piece 53 is in a bent state, and the first moving contact piece 53 can drive the first conductive portion 532 to move towards the first static contact piece 42.

[0048] Refer to Figure 2 and Figure 3 , the third conductive member 6 has the same structure as the second conductive member 5. The third conductive member 6 is assembled in the installation groove 13, and the third conductive member 6 has elasticity. The third conductive member 6 is formed by bending a metal sheet. The third conductive member 6 includes an integrally formed third inserting piece 61 and a second moving contact piece 63.

[0049] Refer to Figure 2 , the third inserting piece 61 is folded from a metal sheet so that the thickness of the third inserting piece 61 is twice the thickness of the second moving contact piece 63, which can save the materials required for the third conductive member 6 while meeting the electrical component joint standard, that is, reduce the production cost of the third conductive member 6.

[0050] Refer to Figure 2 and Figure 3 , the third inserting piece 61 is located on the side of the first locking groove 11 facing the second static contact piece 43, and one end of the third inserting piece 61 passes through the housing 1 and extends out of the housing 1. Second positioning blocks 611 are fixedly connected to both end faces of the third inserting piece 61 in the width direction. A second positioning groove 17 is formed on the bottom wall of the installation groove 13, and the second positioning groove 17 can accommodate the second positioning blocks 611 to be inserted. A second card slot 22 is formed on the end face of the cover body 2 facing the housing 1, and the second card slot 22 can accommodate the second positioning blocks 611 to be inserted.

[0051] Refer to Figure 2 , the second bending piece 62 is located at one end of the third inserting piece 61 in the length direction, and the second bending piece 62 is located in the installation groove 13.

[0052] Refer to Figure 2 , the second moving contact piece 63 includes a second arching portion 631 and a second conductive portion 632. The second arching portion 631 is fixedly connected to the end face of the second bending piece 62 away from the third inserting piece 61, and the second arching portion 631 is V-shaped.

[0053] Referring to Figure 2 , the second conductive part 632 is fixedly connected to the end face of the second arched part 631 away from the second bending piece 62, and the second conductive part 632 is located on the side of the second static contact piece 43 away from the second locking groove 12. The second moving contact piece 63 is in a bent state, and the second moving contact piece 63 can drive the second conductive part 632 to move towards the second static contact piece 43.

[0054] Referring to Figure 3 and Figure 4 , the driving member 7 is used to switch any one of the second conductive member 5 and the third conductive member 6 to be electrically connected to the first conductive member 4. The driving member 7 includes an operating rod 71 and an operating ring 72. The operating rod 71 is inserted into the mounting hole 15.

[0055] Referring to Figure 2 and Figure 4 , the operating ring 72 is fixedly connected to the outer circumferential surface of the operating rod 71. A first slot 721 and a second slot 722 are formed on the outer circumferential surface of the operating ring 72. The first slot 721 can be inserted by the first arched part 531, and the second slot 722 can be inserted by the second arched part 631.

[0056] Referring to Figure 3 and Figure 4 , a limiting block 73 is fixedly connected to the end face of the operating ring 72 facing the bottom wall of the fixing groove 14. A limiting groove 18 is formed on the bottom wall of the fixing groove 14. The limiting groove 18 is in an arc-shaped groove, and the limiting block 73 can be inserted into the limiting groove 18.

[0057] Referring to Figure 2 and Figure 3 , the first bending piece 52 is in a bent and compressed state, applying a force to the first arched part 531 to move in the direction of the axis of the mounting hole 15. The second bending piece 62 is in a bent and compressed state, applying a force to the second arched part 631 to move in the direction of the axis of the mounting hole 15.

[0058] Referring to Figure 2 , Figure 3 and Figure 4 , when the limiting block 73 abuts against one inner wall of the limiting groove 18 along the circumferential direction, the first slot 721 is aligned with the first arched part 531. The first bending piece 52 drives the first arched part 531 to move in the direction of the axis of the mounting hole 15, so that the first arched part 531 is inserted into the first slot 721, and the first conductive part 532 abuts against the first static contact piece 42. At the same time, the second bending piece 62 drives the second arched part 631 to abut against the outer circumferential surface of the operating ring 72.

[0059] Referring to Figure 2 , Figure 3 and Figure 4Similarly, when the limiting block 73 abuts against the inner wall on the other side of the limiting groove 18 in the circumferential direction, the second slot 722 is aligned with the second arching portion 631, and the second bending piece 62 drives the second arching portion 631 to move towards the axis direction of the mounting hole 15, so that the second arching portion 631 is inserted into the second slot 722, and the second conductive portion 632 abuts against the second static contact piece 43. At the same time, the first bending piece 52 drives the first arching portion 531 to abut against the outer circumferential surface of the operating ring 72.

[0060] The implementation principle of the rotary switch in the application embodiment is as follows: taking the state when the first moving contact piece 53 abuts against the first static contact piece 42 as the initial state, when it is necessary to switch the state of the rotary switch: first rotate the driving operating rod 71 to drive the first arching portion 531 by the operating ring 72, so that the first arching portion 531 disengages from the first slot 721. When the second arching portion 631 is aligned with the second slot 722, the second bending piece 62 drives the second arching portion 631 to be inserted into the second slot 722, realizing the electrical connection between the third conductive member 6 and the first conductive member 4. Similarly, when the third conductive member 6 is connected to the first conductive member 4, rotate the driving operating rod 71 in the opposite direction to separate the second moving contact piece 63 from the second static contact piece 43, so that the second conductive member 5 is electrically connected to the first conductive member 4.

[0061] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The terms "first", "second", "third" and similar terms used in the specification and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one. The terms "comprising" or "including" and the like mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right" and the like are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationships may also change accordingly.

[0062] The above are only the preferred embodiments of this application and are not used to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of this application shall be included in the protection scope of this application.

Claims

1. A rotary switch, comprising a housing (1), characterized in that: A cover body (2) is provided on one side of the shell (1); a mounting groove (13) is provided on the end surface of the shell (1) facing the cover body (2); a first conductive member (4), a second conductive member (5) and a third conductive member (6) are provided in the shell (1); a driving member (7) is rotatably connected in the shell (1); the first conductive member (4) includes a first stationary contact piece (42); the second conductive member (5) includes a second plug-in piece (51) provided in the mounting groove (13); a first bending piece (52) is provided at one end of the second plug-in piece (51); a first moving contact piece (53) is provided on a side of the first bending piece (52) away from the second plug-in piece (51); the first bending piece (52) is in a bent deformation state; the first bending piece (52) can drive the first moving contact piece (53) to move in the direction of the first stationary contact piece (42); and the driving member (7) can drive the first moving contact piece (53) to move in the direction away from the first stationary contact piece (42).

2. A rotary switch according to claim 1, characterized in that: The first movable contact piece (53) and the second insert piece (51) are integrally formed.

3. A rotary switch according to claim 1, characterized in that: The thickness of the second inserting piece (51) is twice the thickness of the first moving contact piece (53).

4. A rotary switch according to claim 1, characterized in that: The second inserting piece (51) is provided with a first positioning block (511) along the width direction, and the bottom wall of the installation groove (13) is provided with a first positioning groove (16) for the first positioning block (511) to be inserted.

5. A rotary switch according to claim 1, characterized in that: The first movable contact piece (53) comprises a first arched portion (531) connected to a side of the first curved piece (52) away from the second plug piece (51); a first conductive portion (532) is provided at one end of the first arched portion (531) away from the first curved piece (52); and the first curved piece (52) is used to drive the first arched portion (531) to contact the driving member (7).

6. A rotary switch according to claim 5, characterized in that: The driving member (7) comprises an operating rod (71) rotatably connected to the housing (1); an operating ring (72) is arranged on the outer circumferential surface of the operating rod (71); a first slot (721) for inserting the first arched portion (531) is provided on the outer circumferential surface of the operating ring (72); and a fixing slot (14) for inserting the operating ring (72) is provided on the bottom wall of the mounting slot (13).

7. A rotary switch according to claim 6, characterized in that: A limiting block (73) is arranged on the end surface of the operating ring (72) facing the bottom wall of the fixing groove (14); an arc-shaped limiting groove (18) is provided on the bottom wall of the fixing groove (14); and the limiting block (73) is slidably arranged in the limiting groove (18).

8. A rotary switch according to claim 5, characterized in that: The first arched portion (531) is V-shaped.

9. A rotary switch according to claim 1, characterized in that: A locking structure (3) connecting the cover body (2) and the shell (1) is provided between the two, the locking structure (3) comprising a first locking block (31) and a second locking block (32) provided on the side of the cover body (2) facing the shell (1), and a first locking groove (11) for inserting the first locking block (31) and a second locking groove (12) for inserting the second locking block (32) are provided on the shell (1).

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