Rotor connecting structure of clock spring and angle sensor

Abstract

The utility model relates to a clock spring and angle sensor rotor connecting structure, which comprises a clock spring, a rotor and a transmission reed, the transmission reed is provided with an annular sheet body, an upper clamping bulge and a lower clamping bulge, the upper clamping bulge and the lower clamping bulge are positioned on the annular sheet body, each clamping bulge is trapezoidal, the outer diameter of each clamping bulge is gradually increased towards one side of the sheet body, the clamping bulges are elastic, and the lower clamping bulge is elastic. The clock spring and the rotor are provided with upper clamping grooves and lower clamping grooves corresponding to the clamping protrusions respectively, the clamping protrusions are inserted into the corresponding clamping grooves to form close fit, and the clock spring and the rotor are connected together. The upper clamping protrusion and the lower clamping protrusion are designed on the annular sheet body, the clamping protrusions are trapezoid, and the outer diameters of the clamping protrusions are gradually increased towards one side of the sheet body, so that the clamping protrusions can be clamped more and more tightly when being clamped into the clamping grooves. And the clamping protrusions can be extruded to elastically deform so as to be tightly clamped into the clamping grooves, the clamping protrusions are elastically clamped, the influence of the matching size can be reduced, and the transmission performance is guaranteed. The clock spring and the rotor are ingeniously connected, and assembling is simple and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile switches, in particular to a rotor connection structure of a clock spring and an angle sensor. Background Art

[0002] CN208646772U proposes a multifunctional integrated combination switch for automobiles, and CN213384442U proposes an integrated angle sensor. The clock spring and the rotor of the angle sensor are usually matched with straight rib grooves or shaft holes. This matching method is prone to matching difficulties or looseness. When the matching is loose, the transmission accuracy is affected. If a rubber sleeve is added, the production efficiency is low and the manufacturing cost is high. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a clock spring and an angle sensor rotor connection structure, which cleverly connects the clock spring and the rotor, and has simple and fast assembly and high assembly efficiency.

[0004] The technical solution of the utility model is: a clock spring and an angle sensor rotor connection structure, comprising a clock spring, a rotor and a transmission spring, wherein the transmission spring has an annular sheet body, an upper clamping protrusion and a lower clamping protrusion located on the annular sheet body, each clamping protrusion is "trapezoidal", and its outer diameter gradually increases toward one side of the sheet body, and the clamping protrusion is also elastic, the clock spring and the rotor respectively have an upper clamping groove and a lower clamping groove at corresponding clamping protrusions, the clamping protrusions are inserted into the corresponding clamping grooves and form a tight fit, so that the clock spring and the rotor are connected together.

[0005] By adopting the above technical solution, an upper clamping convex and a lower clamping convex structure are designed on the annular sheet body. The upper clamping convex is inserted into the upper clamping groove of the clock spring, and the lower clamping convex is inserted into the lower clamping groove of the rotor. Since the clamping convex is "trapezoidal" and its outer diameter gradually increases toward one side of the sheet body, the clamping convex will become tighter and tighter when it is inserted into the clamping groove; and the clamping convex can also be squeezed elastically deformed to be tightly clamped into the clamping groove. The clamping convex is elastically clamped, which can reduce the influence of external environment such as high and low temperature changes on the matching size and ensure transmission performance. The matching problem is solved, the product quality stability is improved, the clock spring and the rotor are cleverly connected, and the assembly is simple and fast, and the assembly efficiency is high.

[0006] Preferably, the upper clamping protrusion is formed by an elastic annular sheet protruding upward, and the lower clamping protrusion is formed by an elastic annular sheet protruding downward. The transmission spring can be integrally formed by stamping, which has high production efficiency and low cost.

[0007] Preferably, at least two upper clamping protrusions and lower clamping protrusions are provided in the circumferential direction of the annular sheet body, the two upper clamping protrusions are symmetrically arranged, and the two lower clamping protrusions are also symmetrically arranged. The clamping and positioning of multiple clamping protrusions are more stable.

[0008] Preferably, the clock spring includes a rotating cover, an outer shell and a center rotating sleeve, the upper part of the center rotating sleeve is passed through the outer shell and connected to the rotating cover, the upper slot is located on the bottom surface of the center rotating sleeve, the rotor sleeve is arranged outside the lower part of the center rotating sleeve, and cooperates with the rotating sleeve to form a accommodating space that can accommodate the transmission reed.

[0009] Preferably, the outer shell has a hollow chamber inside, the upper chamber opening of the hollow chamber is formed on the top surface of the outer shell, and the lower chamber opening is formed on the bottom surface of the outer shell, the upper part of the center rotating sleeve is inserted into the chamber through the lower chamber opening, and has an outer rib abutting against the outer edge of the lower chamber opening, the rotating cover abuts against the outer edge of the upper chamber opening, and has a buckle A inserted into the chamber, the buckle A also enters the center rotating sleeve and buckles on the block A on the inner ring surface of the center rotating sleeve to achieve connection and positioning between the rotating cover and the center rotating sleeve, and the rotating cover and the inner ring surface of the center rotating sleeve are also parallel to the axial direction. The axial sliding guide is achieved between the rotating cover and the center rotating sleeve through the clamping fit of the buckle A and the block A, which is convenient for disassembly and assembly; and during assembly, the axial sliding guide is also achieved through the fit of the rib A and the groove A, which can effectively avoid displacement during the assembly process.

[0010] Preferably, the outer shell has a base shell and a shell cover sleeved outside the base shell, the upper chamber opening is formed on the shell cover, and the lower chamber opening is formed on the base shell, and the outer ring surface of the shell cover and the base shell is matched by ribs B and grooves B parallel to the axial direction to achieve axial sliding guidance, and a protrusion is also provided on the outer ring of the base shell, and the shell cover has a groove for the protrusion to be inserted, and the protrusion is inserted into the groove to limit the shell cover from upwardly separating from the base shell. The shell cover and the base shell are positioned by the clamping fit of the protrusion and the groove, which is convenient for disassembly and assembly; and during assembly, the ribs B and grooves B are matched to achieve axial sliding guidance, which can effectively avoid displacement during the assembly process.

[0011] Preferably, the central rotating sleeve comprises an upper sleeve body and a lower sleeve body sleeved on the upper sleeve body, the upper sleeve body has an inserting cavity at the bottom, and the lower sleeve body has an inserting piece at the top, the inserting piece is inserted into the inserting cavity and also realizes axial sliding guidance through the cooperation of ribs C and grooves C parallel to the axial direction, a clamping block B is provided on the inner ring surface of the upper sleeve body, and a buckle B is provided on the inner ring surface of the lower sleeve body, the buckle B is buckled on the clamping block B to realize the connection and positioning of the two sleeve bodies, and the upper clamping groove is located on the lower sleeve body. The upper sleeve body and the lower sleeve body are positioned by the clamping cooperation of the buckle B and the clamping block B, which is convenient for disassembly and assembly; and during assembly, the axial sliding guidance is also realized through the cooperation of ribs C and grooves C, which can effectively avoid displacement during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0013] Figure 2 It is an exploded view of a specific embodiment of the utility model;

[0014] Figure 3 This is a structural diagram of a rotary cover according to a specific embodiment of the utility model;

[0015] Figure 4 This is a structural diagram of the outer shell of a specific embodiment of the utility model;

[0016] Figure 5 This is a disassembled structural diagram of the outer shell of a specific embodiment of the utility model;

[0017] Figure 6 This is a structural diagram of a central rotating sleeve of a specific embodiment of the utility model;

[0018] Figure 7 This is a structural diagram of the center rotating sleeve disassembly of a specific embodiment of the utility model;

[0019] Figure 8 It is a structural diagram of the upper sleeve body of a specific embodiment of the utility model;

[0020] Fig. 9 It is a structural diagram of a transmission reed of a specific embodiment of the utility model;

[0021] Fig.10 This is a rotor structure diagram of a specific embodiment of the utility model.

[0022] In the figure: clock spring 1, rotating cover 1a, base shell 111, shell cover 112, outer shell body 1b, chamber 1b1, upper chamber opening 1b11, lower chamber opening 1b12, center rotating sleeve 1c, outer rib 10, upper sleeve body 1c1, insert chamber 1c11, lower sleeve body 1c2, insert sheet 1c21, buckle A41, block A42, rib A51, groove A52, rib B61, groove B62, protrusion 71, notch 72, rib C81, groove C82, block B91, buckle B92, rotor 2, transmission reed 3, annular sheet body 31, upper clamping protrusion 32, lower clamping protrusion 33, upper clamping groove 11, lower clamping groove 21. DETAILED DESCRIPTION

[0023] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in 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.

[0024] like Figure 1-10As shown, a clock spring and an angle sensor rotor connection structure of the utility model comprises a clock spring 1, a rotor 2 and a transmission spring 3, wherein the transmission spring 3 comprises an annular sheet 31, an upper clamping protrusion 32 and a lower clamping protrusion 33 located on the annular sheet 31, each clamping protrusion is "trapezoidal", and its outer diameter gradually increases toward one side of the sheet 31, and the clamping protrusion is also elastic. Specifically, the upper clamping protrusion 32 is formed by the elastic annular sheet 31 protruding upward, and the lower clamping protrusion 33 is formed by the elastic annular sheet 31 protruding downward. At least two upper clamping protrusions 32 and lower clamping protrusions 33 are arranged symmetrically in the circumferential direction of the annular sheet 31, and the two upper clamping protrusions 32 and the two lower clamping protrusions 33 are also arranged symmetrically. The transmission spring material can be made of stainless steel or iron, and is formed in one piece by stamping, with high production efficiency and low cost. The stainless steel stamping process has mature technology and high production line efficiency. The clock spring 1 and the rotor 2 have an upper groove 11 and a lower groove 21 at the corresponding cams, and the cams are inserted into the corresponding grooves to form a tight fit, so that the clock spring 1 and the rotor 2 are connected together.

[0025] Specifically, the clock spring 1 includes a rotating cover 1a, an outer shell 1b and a central rotating sleeve 1c. The upper part of the central rotating sleeve 1c is passed through the outer shell 1b and is connected to the rotating cover 1a. The upper slot 11 is located on the bottom surface of the central rotating sleeve 1c. The rotor 2 is sleeved on the outside of the lower part of the central rotating sleeve 1c and cooperates with the rotating sleeve to form an accommodating space that can accommodate the transmission reed 3.

[0026] Specifically, the outer shell 1b has a hollow chamber 1b1 inside, the upper chamber opening 1b11 of the hollow chamber 1b1 is formed on the top surface of the outer shell 1b, and the lower chamber opening 1b12 is formed on the bottom surface of the outer shell 1b, the upper part of the central rotating sleeve 1c is inserted into the chamber 1b1 through the lower chamber opening 1b12, and is integrally provided with an outer retaining edge 10 that can be abutted against the outer edge of the lower chamber opening 1b12, the rotating cover 1a is abutted against the outer edge of the upper chamber opening 1b11, and has a buckle A41 inserted into the chamber 1b1, and the buckle A41 also enters downward into the central rotating sleeve 1c , and buckled inwardly on the block A42 on the inner ring surface of the center rotating sleeve 1c, so as to realize the connection and positioning between the rotating cover 1a and the center rotating sleeve 1c. The buckle A has a bayonet for the block A to be inserted. The buckle A is integrally formed on the rotating cover 1a, and the block A is integrally formed on the inner ring surface of the center rotating sleeve 1c. Of course, the buckle A can also be arranged on the inner ring surface of the center rotating sleeve 1c, and the block A is on the rotating cover 1a. The rotating cover 1a and the inner ring surface of the center rotating sleeve 1c are also parallel to the axial direction. The rib A51 is integrally formed on the rotating cover 1a, and the groove A52 is arranged on the inner ring surface of the center rotating sleeve 1c, or the groove A52 is arranged on the rotating cover 1a, and the rib A51 is integrally formed on the inner ring surface of the center rotating sleeve 1c. The rib can be columnar, or long strip, etc.

[0027] Specifically, the outer shell 1b has a base shell 111 and a shell cover 112 sleeved outside the base shell 111, the upper chamber opening 1b11 is formed on the shell cover 112, and the lower chamber opening 1b12 is formed on the base shell 111. The shell cover 112 and the outer ring surface of the base shell 111 cooperate with each other through ribs B61 and grooves B62 parallel to the axial direction to realize axial sliding guidance. A protrusion 71 is also provided on the outer ring of the base shell 111, and a notch 72 for the protrusion 71 to be inserted is provided on the shell cover 112. The protrusion 71 is inserted into the notch 72 to limit the shell cover 112 from being separated from the base shell 111 upward. The upper end surface of the protrusion 71 is inclined to facilitate the downward installation of the shell cover 112. The protrusion 71 can be integrally formed on the outer ring of the base shell 111, or it can be provided on the shell cover 112. The rib B61 is integrally provided on the shell cover 112 , and the groove B62 is provided on the base shell 111 , or the rib B61 is integrally provided on the outer ring surface of the base shell 111 , and the groove B62 is provided on the shell cover 112 .

[0028] Specifically, the central rotating sleeve 1c comprises an upper sleeve body 1c1 and a lower sleeve body 1c2 sleeved on the upper sleeve body 1c1, the upper sleeve body 1c1 has an inserting cavity 1c11 at the bottom, and an inserting piece 1c21 is integrally arranged on the top of the lower sleeve body 1c2, the inserting piece 1c21 is upwardly inserted into the inserting cavity 1c11 and also realizes axial sliding guidance through the cooperation of the ribs C81 and the grooves C82 parallel to the axial direction, a clamping block B91 is arranged on the inner ring surface of the upper sleeve body 1c1, and a buckle B92 is arranged on the inner ring surface of the lower sleeve body 1c2, the buckle B is integrally formed on the lower sleeve body 1c2, the buckle B92 is upwardly inserted into the upper sleeve body 1c1, and is buckled on the clamping block B91, which can realize the connection and positioning of the two sleeve bodies, and the upper clamping groove 11 is located on the lower sleeve body 1c2. Of course, the inserting piece 1c21 can be arranged at the bottom of the upper sleeve body 1c1, and the inserting cavity 1c11 is arranged on the top of the lower sleeve body 1c2. The buckle B has a snap-in slot for the block B to be inserted into. Of course, the buckle B92 can also be formed on the upper sleeve 1c1, and the block B91 can be integrally formed on the lower sleeve 1c2. The rib C81 can be integrally formed on the upper sleeve 1c1 or the lower sleeve 1c2, and the groove C82 is correspondingly arranged on the lower sleeve 1c2 or the upper sleeve 1c1.

[0029] When assembling the clock spring,

[0030] The shell cover 112 is downwardly mounted outside the base shell 111. During assembly, the ribs B61 and the grooves B62 cooperate to realize axial sliding guidance. The two are positioned and assembled into the outer shell 1b by the clamping fit between the protrusions 71 and the grooves 72.

[0031] The lower sleeve 1c2 is put on the upper sleeve 1c1. During assembly, the rib C81 and the groove C82 cooperate to realize axial sliding guidance. The two are positioned and assembled into a center rotating sleeve 1c through the clamping cooperation of the buckle B92 and the clamping block B91.

[0032] Then the upper part of the center rotating sleeve 1c is passed through the outer shell 1b and connected to the rotating cover 1a above. During assembly, the rotating cover 1a and the center rotating sleeve 1c are also coordinated by the rib A51 and the groove A52 to achieve axial sliding guidance, and the two are positioned by the clamping fit of the buckle A41 and the clamping block A42.

[0033] Then install the transmission spring 3 between the clock spring 1 and the rotor 2. The upper clamping protrusion 32 of the transmission spring 3 is inserted into the upper clamping groove 11 of the upper clock spring 1, and the lower clamping protrusion 33 is inserted into the lower clamping groove 21 of the lower rotor 2. Since the clamping protrusion is "trapezoidal" and its outer diameter gradually increases toward the side of the sheet body 31, the clamping protrusion will be more and more tightly clamped when it is clamped into the clamping groove; and the clamping protrusion can also be squeezed elastically deformed to be tightly clamped into the clamping groove. The clamping protrusion is elastically clamped, which can reduce the influence of external environment such as high and low temperature changes on the matching size and ensure the transmission performance. The matching problem is solved, the product quality stability is improved, the clock spring and the rotor are cleverly connected, and the assembly is simple and fast, and the assembly efficiency is high.

[0034] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement, etc. between the components in a certain posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "A", "B", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A clock spring and an angle sensor rotor connection structure, characterized in that: The invention comprises a clock spring (1), a rotor (2) and a transmission spring (3), wherein the transmission spring (3) comprises an annular plate body (31), an upper clamping protrusion (32) and a lower clamping protrusion (33) located on the annular plate body (31), each clamping protrusion is in a "trapezoidal" shape and gradually increases in size toward one side of the plate body (31) in its outer diameter, and the clamping protrusion is also elastic, and the clock spring (1) and the rotor (2) respectively have an upper clamping groove (11) and a lower clamping groove (21) at corresponding clamping protrusions, and the clamping protrusions are inserted into the corresponding clamping grooves to form a tight fit, thereby achieving connection between the clock spring (1) and the rotor (2).

2. The clock spring and angle sensor rotor connection structure according to claim 1, characterized in that: The upper clamping protrusion (32) is formed by the elastic annular sheet (31) protruding upward, and the lower clamping protrusion (33) is formed by the elastic annular sheet (31) protruding downward.

3. The clock spring and angle sensor rotor connection structure according to claim 1, characterized in that: At least two upper clamping protrusions (32) and a lower clamping protrusion (33) are arranged in the circumferential direction of the annular sheet body (31); the two upper clamping protrusions (32) are symmetrically arranged, and the two lower clamping protrusions (33) are also symmetrically arranged.

4. A clock spring and angle sensor rotor connection structure according to claim 1, 2 or 3, characterized in that: The clock spring (1) comprises a rotating cover (1a), an outer shell (1b) and a central rotating sleeve (1c); the upper portion of the central rotating sleeve (1c) is inserted into the outer shell (1b) and connected to the rotating cover (1a); the upper clamping groove (11) is located on the bottom surface of the central rotating sleeve (1c); the rotor (2) is sleeved outside the lower portion of the central rotating sleeve (1c) and cooperates with the rotating sleeve to form a receiving space capable of accommodating the transmission spring leaf (3).

5. The clock spring and angle sensor rotor connection structure according to claim 4, characterized in that: The outer shell (1b) has a hollow chamber (1b1) inside, an upper chamber opening (1b11) of the hollow chamber (1b1) is formed on the top surface of the outer shell (1b), and a lower chamber opening (1b12) is formed on the bottom surface of the outer shell (1b); the upper portion of the central rotating sleeve (1c) is inserted into the chamber (1b1) through the lower chamber opening (1b12) and has an outer retaining edge (10) abutting against the outer edge of the lower chamber opening (1b12); the rotating cover (1a) abuts against the upper chamber opening (1 b11) and has a buckle A (41) inserted into the chamber (1b1), the buckle A (41) also enters the center rotating sleeve (1c) and buckles on the block A (42) on the inner ring surface of the center rotating sleeve (1c), so as to realize the connection and positioning between the rotating cover (1a) and the center rotating sleeve (1c), and the inner ring surface of the rotating cover (1a) and the center rotating sleeve (1c) are also parallel to the axial direction. Ribs A (51) and grooves A (52) cooperate to realize axial sliding guidance.

6. The clock spring and angle sensor rotor connection structure according to claim 5, characterized in that: The outer shell (1b) comprises a base shell (111) and a shell cover (112) sleeved on the outside of the base shell (111); the upper chamber opening (1b11) is formed on the shell cover (112), and the lower chamber opening (1b12) is formed on the base shell (111); the shell cover (112) and the outer ring surface of the base shell (111) cooperate with each other through ribs B (61) and grooves B (62) parallel to the axial direction to realize axial sliding guidance; a protrusion (71) is further provided on the outer ring of the base shell (111); and the shell cover (112) has a groove (72) for the protrusion (71) to be inserted into. The protrusion (71) is inserted into the groove (72) to limit the shell cover (112) from being separated from the base shell (111) upward.

7. The clock spring and angle sensor rotor connection structure according to claim 4, characterized in that: The central rotating sleeve (1c) comprises an upper sleeve body (1c1) and a lower sleeve body (1c2) sleeved on the upper sleeve body (1c1); the bottom of the upper sleeve body (1c1) comprises an inserting cavity (1c11); the top of the lower sleeve body (1c2) comprises an inserting piece (1c21); the inserting piece (1c21) is inserted into the inserting cavity (1c11) and cooperates with a rib C (81) and a groove C (82) parallel to the axial direction to realize axial sliding guidance; a clamping block B (91) is provided on the inner ring surface of the upper sleeve body (1c1); a buckle B (92) is provided on the inner ring surface of the lower sleeve body (1c2); the buckle B (92) is buckled inwardly on the clamping block B (91) to realize connection and positioning of the two sleeve bodies; and the upper clamping groove (11) is located on the lower sleeve body (1c2).

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