A roller switch

Abstract

The utility model discloses a roller switch, comprising a housing, a roller, a roller seat, and a first circuit board. The housing is provided with a support plate having an operation port, the roller seat is movably installed in the operation port, and the first circuit board is installed below the roller seat; the roller is rotatably arranged on the roller seat through a roller shaft, a second circuit board provided with a detection switch is fixed to the roller seat, one end of the roller shaft is connected with a sensing member through a gear set, and the other end of the roller shaft is provided with a gear mechanism; the first shaft and a guide column are respectively provided at both ends of the roller seat, the end of the first shaft is vertically connected with the second shaft, a spherical body is provided between the first shaft and the second shaft, the support plate is provided with an axis hole, a positioning groove and a guide groove, a spherical concave cavity is provided between the axis hole and the positioning groove, and the first circuit board is provided with a first micro switch located below the guide column and a second micro switch distributed on both sides of the first shaft. The utility model can stably realize five-way control, has a compact structure, and has a good operating feel.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a roller switch. Background Art

[0002] The roller switch uses a roller as a driving component, and a sensing element is connected to the rotating shaft of the roller. The sensing element is cooperated with a detection switch such as a photoelectric switch. By rotating the roller, the sensing element and the detection switch cooperate to realize signal output, thereby realizing switch control. At the same time, the existing roller switch also has a micro switch designed under the roller bracket. By toggling the roller sideways or pressing the roller downward to touch different micro switches, the purpose of a single control component driving switches with different functions is achieved.

[0003] However, for the above-mentioned roller switch structure, since the detection switch and multiple micro switches are arranged on a circuit board and installed under the roller bracket, there is a problem of interference between the sensing element and the detection switch when the roller is moved sideways, which affects the smoothness of the roller rotation. Utility Model Content

[0004] The utility model aims to provide a roller switch which can stably realize five-way control, has a compact structure and good operating feel, and solves the problems existing in the existing roller switches in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller switch, comprising a housing, a roller, a roller seat, and a first circuit board, wherein the housing is provided with a support plate having an operation port, the roller seat is movably installed in the operation port, and the first circuit board is installed below the roller seat; the roller is rotatably arranged on the roller seat through a roller shaft, a second circuit board provided with a detection switch is fixed to the roller seat, one end of the roller shaft is connected to a gear set, the output shaft of the gear set is connected to a sensing element corresponding to the position of the detection switch, and the other end of the roller shaft is provided with a gear mechanism for sensing the rotation angle of the roller; the roller The seat is provided with a coaxially distributed first rotating shaft and a guide column at both ends of the vertical roller rotating shaft, the end of the first rotating shaft is vertically connected to the second rotating shaft, a spherical body is provided between the first rotating shaft and the second rotating shaft, the support plate is provided with an axial hole for clamping the first rotating shaft, a positioning groove for positioning the second rotating shaft and a guide groove slidably connected to the guide column, a spherical cavity is provided between the axial hole and the positioning groove for rotationally cooperating with the spherical body, the first circuit board is provided with a first micro switch located below the guide column and a second micro switch distributed on both sides of the first rotating shaft.

[0007] Furthermore, the second circuit board is connected to the first circuit board through an FPC cable, and both the first circuit board and the second circuit board are provided with an FPC socket plugged with the FPC cable. Since the FPC cable is used to connect the two circuit boards, it is a flexible connection, which is convenient for toggling left and right or pressing the roller to operate the switch. In addition, by further reserving 2mm in length, problems such as operating force difference and FPC falling off due to pulling can be avoided.

[0008] Furthermore, the roller is a metal roller with anti-skid patterns on the surface, thereby providing a better touch.

[0009] Furthermore, the surface of the roller is provided with a coating, which can protect the surface of the roller.

[0010] Furthermore, the roller seat is provided with a first pressing plate at one end close to the guide column for pressing and triggering the first micro switch, and the roller seat is provided with second pressing plates at both sides of the first rotating shaft for pressing and triggering the second micro switch. Thus, when the roller is pressed, the second rotating shaft can be used as a rotation axis for rotation, so that the first pressing plate triggers the first micro switch located below it; when the roller is moved left and right, the first rotating shaft can be used as a rotation axis for rotation, so that the second pressing plates located on both sides can respectively trigger the second micro switches located on the same side.

[0011] Furthermore, a push rod is provided between the first pressing plate and the first micro switch and between the second pressing plate and the second micro switch, and the support plate is provided with a guide hole corresponding to the push rod for sliding cooperation. By providing the push rod to trigger different micro switches, the travel can be reduced.

[0012] Preferably, the upper part of the push rod is in a hemispherical shape. In this way, due to the point-surface matching, force can be better transmitted and friction can be reduced.

[0013] Furthermore, the shift mechanism includes a shift gear, a shift pin and a spring, the shift gear is connected to one end of the roller shaft, the roller seat is provided with a receiving groove for positioning and installing the shift pin and the spring, the spring is located between the shift pin and the bottom wall of the receiving groove, and the shift pin has a protrusion at one end away from the spring that is engaged with the shift gear. The jacking force of the spring can be used to make the protrusion on the shift pin engage with the shift gear, thereby achieving shift tactile control and increasing the operating feel.

[0014] Furthermore, the gear set includes an input gear, an intermediate gear and an output gear that are meshed and connected in sequence, the input gear is connected to the other end of the roller shaft, and the outer wall of the shaft of the output gear is provided with a plurality of the sensing parts, the sensing parts are shielding plates, and the detection switch is a slot-type photoelectric sensor with a sensing groove for the shielding plate to pass through. The sensing part is driven to rotate by the three-stage gear, thereby continuously switching the opening and closing state of the optical coupling to achieve functional output. In addition, the transmission connection between the sensing part and the roller is realized through the gear set. By setting a reasonable transmission ratio, the control accuracy of the optical coupling and the compactness of the structure can be taken into account.

[0015] Furthermore, the gear ratio of the shift gear, the input gear, the intermediate gear, the output gear, and the shielding plate is 4:4:4:2:1.

[0016] Furthermore, the upper cover of the housing is provided with a cover, the cover is provided with a through hole for the roller to extend out, the lower part of the housing is provided with a bottom cover for clamping and fixing the first circuit board, and the upper surface of the first circuit board is covered with a waterproof silicone sheet. In this way, the internal circuit board and the optical coupling structure can be protected from being disturbed by water or dust.

[0017] The roller seat comprises a roller bracket and a roller cover which are buckled and connected, and the roller cover is provided with a roller clearance hole. The roller bracket is vertically penetrated at one end away from the accommodating groove and is provided with an assembly groove for assembling the induction component and the second circuit board.

[0018] The roller shaft is composed of a shaft rod and a shaft tube connected by plugging, the shaft rod is provided with a clamping block, and the shaft tube is correspondingly provided with a top block that abuts against the clamping block.

[0019] Compared with the prior art, the utility model provides a roller switch, which has the following beneficial effects:

[0020] The utility model facilitates the operation of the roller to swing the roller seat left and right and up and down by cooperating the spherical body with the spherical concave cavity; since the roller seat can swing left and right and flip up and down on the shell, and the roller can also rotate independently on the roller seat, there are two layers of movable structures, so that the overall movement is small. The utility model has a simple structure and low cost, and can stably realize the function of five-way operation.

[0021] The utility model sets two independent circuit boards to respectively fix the detection switch and each micro switch. Since the detection switch is fixed together with the roller seat, the detection switch and the sensing element can swing left and right together with the roller seat, thereby avoiding interference between the sensing element and the detection switch when the roller seat is swung left and right by toggling the roller, thereby affecting the operating feel and control accuracy.

[0022] The utility model can achieve a rolling pause feeling when the roller rotates by setting a gear mechanism, giving a better operating feel. The induction element and the roller are connected by a gear set, and by setting a reasonable transmission ratio, the optical coupling control accuracy and the compactness of the structure can be taken into account.

[0023] In addition, the utility model adopts a micro switch, which has higher consistency than the conventional "silicone + pot piece" solution. In this way, there is less risk of inconsistent feel when moving the roller to the left or right. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0027] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0028] Figure 4 for Figure 2 Schematic diagram of the cross section along the BB direction;

[0029] Figure 5 for Figure 2 Schematic diagram of the cross section along CC direction;

[0030] Figure 6 It is a schematic diagram of the overall assembly of the utility model;

[0031] Figure 7 The schematic diagram of the installation for covering;

[0032] Figure 8 It is a schematic diagram of the assembly of the roller seat and the housing;

[0033] Fig. 9 A schematic diagram of assembling a roller by cooperating between a roller cover and a roller bracket;

[0034] Fig.10 A schematic diagram showing another perspective of assembling the roller by the cooperation of the roller cover and the roller bracket;

[0035] Fig.11 This is the exploded view of the roller seat parts;

[0036] Fig.12 is a schematic diagram of connection between the first circuit board and the second circuit board;

[0037] Fig.13 A schematic diagram of vertically pressing the roller;

[0038] Fig.14 A schematic diagram of moving the operating wheel left and right.

[0039] Figure numerals: 1, housing; 11, support plate; 111, operation port; 112, shaft hole; 113, positioning groove; 114, guide groove; 115, guide hole; 116, spherical cavity; 2, roller; 21, roller shaft; 211, shaft rod; 212, shaft tube; 213, clamping block; 214, top block; 22, gear set; 221, input gear; 222, intermediate gear; 223, output gear; 23, induction member; 24, gear mechanism; 241, gear gear; 242, gear pin; 243, spring; 244, bump; 3, roller seat; 3 1. Roller bracket; 311. First rotating shaft; 312. Guide column; 313. Second rotating shaft; 314. First pressing plate; 315. Second pressing plate; 316. Accommodating groove; 317. Spherical body; 318. Assembly groove; 32. Roller cover; 321. Roller clearance hole; 4. First circuit board; 41. First micro switch; 42. Second micro switch; 5. Second circuit board; 51. Detection switch; 511. Sensing groove; 52. FPC cable; 53. FPC seat; 6. Push rod; 7. Cover; 71. Through hole; 8. Bottom cover; 9. Waterproof silicone sheet. DETAILED DESCRIPTION

[0040] The technical solution of the utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] This embodiment provides a roller switch with a simple structure and low cost, and can stably realize the function of five-way operation.

[0042] For details, please refer to Figure 1 to Figure 14The roller switch includes a housing 1, a roller 2, a roller seat 3, and a first circuit board 4. The housing 1 is provided with a support plate 11 having an operation port 111, and the support plate 11 is horizontally distributed. The roller seat 3 is movably installed in the operation port 111, and the first circuit board 4 is installed below the roller seat 3. The roller 2 is rotatably arranged on the roller seat 3 through a roller shaft 21, and a second circuit board 5 with a detection switch 51 is fixed to the roller seat 3. One end of the roller shaft 21 is connected to a gear set 22, and the output shaft of the gear set 22 is connected to a sensing member 23 corresponding to the position of the detection switch 51. The other end of the roller shaft 21 is provided with a gear mechanism 24 for sensing the rotation angle of the roller, which can achieve a rolling pause feeling when the roller rotates, giving a better operating feel. The roller seat 3 is provided with a coaxially distributed first rotating shaft 311 and a guide column 312 at both ends of the vertical roller rotating shaft 21, the end of the first rotating shaft 311 is vertically connected to the second rotating shaft 313, a spherical body 317 is provided between the first rotating shaft 311 and the second rotating shaft 313, the support plate 11 is provided with an axial hole 112 for clamping and connecting the first rotating shaft 311, a positioning groove 113 for positioning the second rotating shaft 313 and a guide groove 114 slidably connected to the guide column 312, a spherical cavity 116 rotatably matched with the spherical body 317 is provided between the axial hole 112 and the positioning groove 113, and the first circuit board 4 is provided with a first micro switch 41 located below the guide column 312 and a second micro switch 42 distributed on both sides of the first rotating shaft 311. By setting up two independent circuit boards, the detection switch and each micro switch are fixed respectively. Since the detection switch is fixed together with the roller seat, the detection switch and the sensor can swing left and right with the roller seat, avoiding interference between the sensor and the detection switch when the roller seat is swung left and right, thereby affecting the operating feel and control accuracy. Due to the use of micro switches, compared with the conventional "silicone + pot piece" solution, it has higher consistency, so there is less risk of inconsistent feel when the roller is swung to the left and right. In addition, through the spherical body and the spherical concave cavity, it is convenient to operate the roller to swing the roller seat left and right and up and down; since the roller seat can swing left and right and flip up and down on the shell, and the roller can also rotate independently on the roller seat, there is a two-layer movable structure, which makes the overall movement smaller.

[0043] In some embodiments, the first micro switch 41 and the two second micro switches 42 are both ALPS micro switches, and their specifications are SKSTAAE010. The detection switch 51 is a photoelectric switch, and its specifications are AUKKIT3032S.

[0044] In some embodiments, reference Figure 3 , Figure 4 , Figure 6 and Fig.12The second circuit board 5 is connected to the first circuit board 4 through an FPC cable 52. Both the first circuit board 4 and the second circuit board 5 are provided with an FPC seat 53 plugged with the FPC cable 52. Since the FPC cable is used to connect the two circuit boards, it is a flexible connection, which is convenient for toggling or pressing the roller to operate the switch. In addition, by further reserving 2mm in length, problems such as operating force difference and FPC falling off due to pulling can be avoided.

[0045] In some embodiments, the roller 2 is a metal roller with anti-slip grooves on the surface, thereby providing a better touch.

[0046] In some embodiments, the surface of the roller 2 is provided with a coating to protect the surface of the roller.

[0047] As an example, the roller is made of aluminum or zinc material, the surface of the roller is processed with anti-skid patterns distributed in dots, and the surface of the roller is anodized or sprayed to form a protective coating material.

[0048] In some embodiments, reference Figures 5 to 14 The roller seat 3 is provided with a first pressing plate 314 at one end close to the guide column 312 for pressing and triggering the first micro switch 41, and the roller seat 3 is provided with second pressing plates 315 at both sides of the first rotating shaft 311 for pressing and triggering the second micro switch 42. In this way, when the roller is pressed, the second rotating shaft can be used as a rotation axis for rotation, so that the first pressing plate triggers the first micro switch located below it; when the roller is turned left and right, the first rotating shaft can be used as a rotation axis for rotation, so that the second pressing plates located on both sides can respectively trigger the second micro switches located on the same side.

[0049] As an improved implementation, refer to Figure 6 , Figure 8 , Figure 12 to Figure 14 A push rod 6 is provided between the first pressing plate 314 and the first micro switch 41, and between the second pressing plate 315 and the second micro switch 42, and the support plate 11 is provided with a guide hole 115 corresponding to the push rod 6 for sliding cooperation. By setting the push rod to trigger different micro switches, the stroke can be reduced. Specifically, the diameter of the push rod is 2.4mm, the diameter of the guide hole is 2.5mm, the single-sided gap between the push rod and the guide hole is 0.05mm, and the push rod has a 0.2mm gap along the Z direction limit of the shell, which can effectively reduce the sound of hitting the board during rebound.

[0050] Preferably, the upper part of the push rod 6 is in a hemispherical shape. In this way, due to the point-surface coordination, force can be better transmitted and friction can be reduced.

[0051] In some embodiments, reference Figure 3, Fig.10 and Fig.11 The shift mechanism 24 includes a shift gear 241, a shift pin 242 and a spring 243. The shift gear 241 is connected to one end of the roller shaft 21. The roller seat 3 is provided with a receiving groove 316 for positioning and installing the shift pin 242 and the spring 243. The spring 243 is located between the shift pin 242 and the bottom wall of the receiving groove 316. The shift pin 242 has a protrusion 244 at one end away from the spring 243, which is engaged with the shift gear 241. The jacking force of the spring can make the protrusion on the shift pin engage with the shift gear, so as to achieve the shift tactile control and increase the operation feel.

[0052] In some embodiments, reference Figure 3 , Figure 4 , Figures 9 to 11 The gear set 22 includes an input gear 221, an intermediate gear 222 and an output gear 223 that are meshed and connected in sequence. The input gear 221 is connected to the other end of the roller shaft 21. The outer wall of the shaft of the output gear 223 is provided with a plurality of sensing members 23. The sensing member 23 is a fan-shaped shielding sheet. The detection switch 51 is a slot-type photoelectric sensor having a sensing groove 511 for the shielding sheet 23 to pass through. The sensing member is driven to rotate by the three-stage gear, thereby continuously switching the opening and closing state of the optical coupling to achieve functional output. In addition, the transmission connection between the sensing member and the roller is realized through a gear set. By setting a reasonable transmission ratio, the control accuracy of the optical coupling and the compactness of the structure can be taken into account.

[0053] In some embodiments, reference Fig. 9 and Fig.11 The gear ratio of the gear 241, the input gear 221, the intermediate gear 222, the output gear 223, and the shielding sheet is 4:4:4:2:1. As an example, the anti-jamming clearance of each gear group is 0.03mm, and the number of teeth of the gear, input gear, intermediate gear, output gear, and shielding sheet are 16, 16, 16, 8, and 4 respectively. Each rotation of the roller four times is one gear, and the state is switched once.

[0054] In some embodiments, reference Figure 1 to Figure 7 and Fig.12 The upper cover of the housing 1 is provided with a cover 7, the cover 7 is provided with a through hole 71 for the roller 2 to extend out, the lower part of the housing 1 is provided with a bottom cover 8 for clamping and fixing the first circuit board 4, and the upper surface of the first circuit board 4 is covered with a waterproof silicone sheet 9. In this way, the internal circuit board and the optical coupling structure can be protected from being disturbed by water or dust.

[0055] In some embodiments, reference Figure 3 to Figure 6 , Figure 8 to Figure 11The roller seat 3 includes a roller bracket 31 and a roller cover 32 that are buckled and connected, and the roller cover 32 is provided with a roller clearance hole 321. Fig.11 As shown, the roller bracket 31 is vertically penetrated at one end away from the accommodating groove 316, and is provided with an assembly groove 318 for assembling the induction member 23 and the second circuit board 5. The roller shaft 21 is composed of a shaft rod 211 and a shaft tube 212 connected by plugging, the shaft rod 211 is provided with a clamping block 213, and the shaft tube 212 is correspondingly provided with a top block 214 that abuts against the clamping block 213. The shift gear 241 and the shaft tube 212, as well as the input gear 221 and the shaft rod 211 are all integrally injection molded with POM material, and the shift pin 242 is made of PA6 material, which can ensure a stable feel.

[0056] The following describes the operation of rolling up and down, toggling left and right, and pressing the roller switch of the present invention.

[0057] Scroll up and down: Reference Figure 3 and Figure 5 , push the roller 2, the roller 2 can rotate around the roller shaft 21 on the roller seat 3, one end of the roller shaft 21 realizes the hand feel through the cooperation of the shift gear 241 and the shift pin 242, and the other end of the roller shaft 21 drives the sensing element 23 to rotate through the three-stage gear set 22, switching the opening and closing state of the optical coupler to realize the functional output.

[0058] Left and right swipe operation: reference Fig.14 When the roller 2 is turned left and right, the first rotating shaft 311 can be used as a rotation axis to rotate under the cooperation of the spherical body 317 and the spherical cavity 116, so that the second pressing plates 315 on both sides can respectively trigger the second micro switches 42 on the same side.

[0059] Press operation: Reference Fig.13 When the roller 2 is pressed downward, the second rotating shaft 313 can be used as a rotation axis to rotate under the cooperation between the spherical body 317 and the spherical cavity 116, so that the first pressing plate 314 triggers the first micro switch 41 located therebelow.

[0060] The roller switch of the utility model can be used for the steering wheel of a car to control functions such as lights and sounds. Since it is a five-way control, multiple functional operations can be integrated into one switch device, which simplifies the structure distribution and provides an operational experience. In addition, the roller switch of the utility model can also be applied to devices or equipment that require multiple functional controls according to the needs of use, and is not limited to the automotive field. As an example, it can also be applied to the handlebars of a motorcycle for use.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A roller switch, comprising a housing, a roller, a roller seat, and a first circuit board, characterized in that: The shell is provided with a support plate with an operation port, the roller seat is movably installed in the operation port, and the first circuit board is installed below the roller seat; the roller is rotatably arranged on the roller seat through the roller shaft, and the roller seat is fixed with a second circuit board with a detection switch, one end of the roller shaft is connected with a gear set, the output shaft of the gear set is connected with a sensing member corresponding to the position of the detection switch, and the other end of the roller shaft is provided with a gear mechanism for sensing the rotation angle of the roller; the roller seat is respectively provided with a first rotating shaft and a guide column coaxially distributed at both ends along the vertical roller shaft, the end of the first rotating shaft is vertically connected with the second rotating shaft, and a spherical body is provided between the first rotating shaft and the second rotating shaft, the support plate is provided with an axial hole for clamping and connecting the first rotating shaft, a positioning groove for positioning the second rotating shaft, and a guide groove slidably connected to the guide column, and a spherical concave cavity is provided between the axial hole and the positioning groove for rotationally cooperating with the spherical body, and the first circuit board is provided with a first micro switch located below the guide column and a second micro switch distributed on both sides of the first rotating shaft.

2. The roller switch according to claim 1, characterized in that: The second circuit board is connected to the first circuit board via an FPC cable, and both the first circuit board and the second circuit board are provided with an FPC socket plug-connected to the FPC cable.

3. The roller switch according to claim 1, characterized in that: The roller is a metal roller with anti-skid patterns on the surface.

4. The roller switch according to claim 3, characterized in that: The surface of the roller is provided with a coating.

5. The roller switch according to claim 1, characterized in that: The roller seat is provided with a first pressing plate at one end close to the guide column for pressing and triggering the first micro switch, and the roller seat is provided with second pressing plates at both sides of the first rotating shaft for pressing and triggering the second micro switch.

6. The roller switch according to claim 5, characterized in that: A push rod is provided between the first pressing plate and the first micro switch and between the second pressing plate and the second micro switch, and the support plate is correspondingly provided with a guide hole which is slidably matched with the push rod.

7. The roller switch according to claim 1, characterized in that: The shift mechanism includes a shift gear, a shift pin and a spring. The shift gear is connected to one end of the roller shaft. The roller seat is provided with a receiving groove for positioning and installing the shift pin and the spring. The spring is located between the shift pin and the bottom wall of the receiving groove. The shift pin has a protrusion at the end away from the spring that is engaged with the shift gear.

8. The roller switch according to claim 7, characterized in that: The gear set includes an input gear, an intermediate gear and an output gear that are meshed and connected in sequence. The input gear is connected to the other end of the roller shaft. The outer wall of the shaft of the output gear is provided with a plurality of sensing parts, and the sensing parts are shielding plates. The detection switch is a slot-type photoelectric sensor having a sensing groove for the shielding plate to pass through.

9. The roller switch according to claim 8, characterized in that: The gear ratio of the shift gear, the input gear, the intermediate gear, the output gear, and the shielding plate is 4:4:4:2:

1.

10. The roller switch according to any one of claims 1 to 9, characterized in that: The upper cover of the shell is provided with a cover, and the cover is provided with a through hole for the roller to extend out. The lower part of the shell is provided with a bottom cover for clamping and fixing the first circuit board, and the upper surface of the first circuit board is covered with a waterproof silicone sheet.

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