Steering sensor for vehicle

Abstract

A steering sensor for a vehicle of the present invention comprises: a case provided with a first case and a second case which are coupled to each other to form a space therein; a shaft holder rotatably provided in the case; a main gear provided on the outer circumference of the shaft holder; a plurality of auxiliary gears which are seated on the first case, and interlock with the main gear; and a substrate positioned between the auxiliary gears and the second case.

Description

Vehicle steering sensor

[0001] The present invention relates to a steering sensor for a vehicle.

[0002] A steering sensor for a vehicle may include a steering angle sensor (SAS). The steering angle sensor may be a device that detects and measures the angle of a rotating part or mechanical movement and converts it into an electrical signal. The steering angle sensor may play an important role in a vehicle steering system.

[0003] The performance of a steering angle sensor is largely determined by the fastening precision of its internal components. If the rotating shaft, magnet, circuit board, and other components within the sensor are not accurately fastened, measurement errors may occur or sensor reliability may be compromised. For example, the alignment between the rotating shaft and the magnet may be misaligned or the fastening may be uneven. This can lead to errors in the sensor's electrical signal conversion. In the long term, there is a risk that the sensor's lifespan will be shortened due to wear and tear between the components.

[0004] In a vehicle steering system, the steering angle sensor can be exposed to shocks or vibrations occurring in the vehicle. Consequently, if there is play or the internal components of the steering angle sensor are not securely fastened, the impact or vibration applied to the vehicle can cause larger play to develop. In such cases, the reliability of the steering angle sensor can be significantly reduced. As such, the fastening force and assembly precision between the internal components of the steering angle sensor are critical factors in steering angle sensor technology.

[0005] One of the technical problems of the present invention is to provide a steering angle sensor that improves the reliability of the steering angle measurement of the steering angle sensor.

[0006] One of the technical problems of the present invention is to provide a steering angle sensor that reduces assembly tolerances and prevents backlash.

[0007] One of the technical problems of the present invention is to provide an inexpensive steering angle sensor.

[0008] The steering sensor for a vehicle according to the present invention may include a case having a first case and a second case that are coupled together to form an internal space, a shaft holder rotatably disposed in the case, a main gear provided on the outer surface of the shaft holder, a plurality of auxiliary gears seated in the first case and coupled with the main gear, and a substrate positioned between the auxiliary gear and the second case.

[0009] In the first case above, a plurality of support members may be formed on which one side of the auxiliary gear is seated.

[0010] The second case above may include a first protrusion that extends through the substrate in the direction of the first case and supports the other side of the auxiliary gear.

[0011] The above second case may further include a second protrusion protruding in the direction of the auxiliary gear.

[0012] The second protrusion can support the side of the auxiliary gear.

[0013] The above auxiliary gear may include an auxiliary gear ring portion extending in the direction of the substrate from the other side of the above auxiliary gear.

[0014] All of the above main gear, the plurality of auxiliary gears, the support member, and the first protrusion can all be provided within a receiving space provided by the first and second cases. Accordingly, the steering angle sensor can be provided compactly.

[0015] The first protrusion may be located on the inner side of the auxiliary gear ring portion.

[0016] The first protrusion may be located on the outer side of the auxiliary gear ring portion.

[0017] The substrate may include a plurality of protrusions that extend in the direction of the first case and support the other side of the auxiliary gear.

[0018] The second case above may further include a second protrusion protruding in the direction of the auxiliary gear. The second protrusion may support the side of the auxiliary gear.

[0019] The above auxiliary gear may include an auxiliary gear ring portion extending in the direction of the substrate from the other side of the above auxiliary gear.

[0020] The above protrusion may be located on the inner side of the above auxiliary gear ring portion.

[0021] The above protrusion may be located on the outer side of the above auxiliary gear ring portion.

[0022] According to the present invention, the coupling precision between parts of the steering angle sensor can be increased.

[0023] According to the present invention, the measurement precision of the steering angle sensor can be improved.

[0024] According to the present invention, the impact resistance of the steering angle sensor can be improved.

[0025] According to the present invention, the manufacturing cost of the steering angle sensor can be reduced.

[0026] FIG. 1 is a perspective view of a steering sensor for a vehicle according to an embodiment.

[0027] FIG. 2 is an exploded view of a steering sensor for a vehicle according to an embodiment.

[0028] FIG. 3 illustrates the inner surface of the first case of a steering sensor for a vehicle according to an embodiment.

[0029] FIG. 4 illustrates the inner surface of the second case of a steering sensor for a vehicle according to an embodiment.

[0030] Figure 5 is a cross-sectional view of A-A' in Figure 1.

[0031] Figure 6 is an enlarged view of area B of Figure 5.

[0032] FIG. 7 illustrates a substrate of a steering sensor for a vehicle according to a third embodiment.

[0033] FIG. 8 illustrates region B of FIG. 5 in a steering sensor for a vehicle according to a third embodiment.

[0034] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. The suffixes 'module' and 'part' for components used in the following description are assigned or used interchangeably for the sake of ease of drafting the specification and do not inherently possess distinct meanings or roles. Furthermore, the attached drawings are intended to facilitate an easy understanding of the embodiments disclosed in this specification, and the technical concepts disclosed in this specification are not limited by the attached drawings. Additionally, when an element such as a layer, region, or substrate is referred to as existing 'on' another component, this includes existing directly on the other element or having other intermediate elements existing between them.

[0035] In this specification, components may be described in horizontal and vertical directions for convenience of explanation. The vertical direction refers to the top or bottom of each component, and the horizontal direction refers to the direction perpendicular to the vertical direction.

[0036] In this specification, the first direction may refer to the X-axis direction, the second direction may refer to the Y-axis direction, and the third direction may refer to the Z-axis direction. Additionally, the Z-axis direction may be the axial direction of a shaft connected to a steering sensor. Furthermore, the outer direction may refer to a direction moving away from the internal space of the vehicle steering sensor, and the inner direction may refer to a direction facing toward the internal space of the vehicle steering sensor.

[0037] The configuration of any one embodiment included in the present invention may be applied to other embodiments. Through this, other embodiments can be easily proposed. The embodiments are disclosed such that the concept of the invention is applied to all of the multiple auxiliary gears, but are not limited thereto. For example, the concept of the present invention may be applied to at least one auxiliary gear.

[0038] FIG. 1 is a perspective view of a steering sensor for a vehicle according to an embodiment, FIG. 2 is an exploded view of a steering sensor for a vehicle according to an embodiment, FIG. 3 is an inner surface of a first case of a steering sensor for a vehicle according to an embodiment, and FIG. 4 is an inner surface of a second case of a steering sensor for a vehicle according to an embodiment.

[0039] Refer to FIG. 1. A steering sensor (10) for a vehicle according to an embodiment of the invention may include a first case (1000) and a second case (2000) that form a predetermined receiving space inside. Refer to FIG. 2. It may include a main gear assembly (100), a plurality of auxiliary gears (200), and a substrate (300) disposed in the receiving space. Here, "distribution" may mean being received. A support member and a protrusion supporting at least one of the plurality of auxiliary gears may be included. The support member and the protrusion may be received in the receiving space. The support member and the protrusion may both be received inside the receiving space. The support member and the protrusion may not be observed from the outside of the case. By doing so, it is possible to suppress the increase in manufacturing costs by avoiding the need for additional separate members to support the gear.

[0040] Refer to FIGS. 1 and 2. The first case (1000) and the second case (2000) may be joined together to form the exterior of the vehicle steering sensor (10). The first fastening member (1001) of the first case and the second fastening member (2001) of the second case may be directly joined to each other. The first and second cases may be directly joined by at least one fastening member provided on the periphery of each case being joined to each other. The structure for joining the first and second fastening members may be various joining structures such as physical bonding, chemical bonding, magnetic bonding, electrical bonding, and mechanical bonding. The fastening member may provide a pair of protrusions and recesses. The first case (1000) may be referred to as the lower case, and the second case (2000) may be referred to as the upper case. The fastening member may be provided on the periphery of the case to provide a space for the other member described below.

[0041] The up and down directions may be based on the Z-direction of the drawing. The same applies throughout the description of the present invention.

[0042] Refer to FIG. 2. The main gear assembly (100) may include a shaft holder (110) rotatably disposed in the first and second cases (1000, 2000), and a main gear portion (120) provided on the outer surface of the shaft holder (110). The shaft (not shown) may be inserted into the shaft holder.

[0043] The plurality of auxiliary gears (200) may include a first auxiliary gear (210) and a second auxiliary gear (220). A magnet (400) may be disposed on the auxiliary gear (200). Each of the first auxiliary gear (210) and the second auxiliary gear (220) may rotate by engaging with the main gear section (120).

[0044] The substrate (300) may be positioned closer to the second case (2000) than to the first case (1000). The substrate (300) may be positioned on the auxiliary gear (200). On the substrate (300), a Hall sensor (310) may be positioned at a location corresponding to the first auxiliary gear (210) and the second auxiliary gear (220) in a vertical direction (Z-axis direction). Additionally, the substrate (300) may include a plurality of through holes (301, 302, 303, 304) through which the protrusion (2100), to be described later, passes. A plurality may mean at least two. The through holes may be provided as a single one. For example, if the substrate is separated, a single through hole may be provided in the separated substrate. As another example, if the protrusion is single, a single through hole may be provided.

[0045] Refer to FIGS. 1 to 3. The first case (1000) may have a first case body portion (1010) including a first hole (H1). For example, the first case body portion (1010) may be a plate having an XY plane. Here, the XY plane may mean a plane orthogonal to the Z-axis. The same may apply below.

[0046] The first case body portion (1010) may include an outer surface (1010a) of the first case body portion forming the bottom surface of the vehicle steering sensor (10), and an inner surface (1010b) of the first case body portion facing the outer surface (1010a) of the first case body portion.

[0047] A plurality of ribs that make the inner surface (1010b) of the first case body part rigid may be formed on the inner surface (1010b) of the first case body part. The ribs may have a grid shape.

[0048] On the inner surface (1010b) of the first case body part, at least one of a first support part (1100) and a second support part (1200) on which the auxiliary gear (200) is seated may be formed. If only one auxiliary gear is provided, the support part may be provided as a single unit. Preferably, both the first support part (1100) and the second support part (1200) may be provided. The first support part (1100) and the second support part (1200) may extend in the Z-axis direction from the inner surface (1010b) of the first case body part. Here, extending in the first axis direction may mean extending with a component extending in the first (e.g., X-axis) axis direction. Here, extending in the first axis direction may mean that the component extending in the first axis direction extends predominantly over the component extending in a lateral direction other than the first axis. The same applies below.

[0049] The first support member (1100) and the second support member (1200) may have a ring or loop shape. The first auxiliary gear (210) may be seated on the first support member (1100). The second auxiliary gear (220) may be seated on the second support member (1200).

[0050] The first support member (1100) may include a first-1 support member (1110) and a first-2 support member (1120) having a larger diameter than the first-1 support member (1110). The first-1 support member (1110) may be formed inside the circumference of the first-2 support member (1120). The second support member (1200) may include a second-1 support member (1210) and a second-2 support member (1220) having a larger diameter than the second-1 support member (1210). The second-1 support member (1210) may be formed inside the circumference of the second-2 support member (1220).

[0051] The first case (1000) may have a first case side (1020) extending in the Z-axis direction from the first case body part (1010). The first case side (1020) may extend from the end of the body part (1010).

[0052] The first case side (1020) may have the first case inner surface (1020b) and the first case outer surface (1020a). The first case outer surface (1020a) may form a part of the side of the vehicle steering sensor (10).

[0053] Refer to FIGS. 1, 2 and 4. The second case (2000) may have a second case body portion (2010) including a second hole (H2). For example, the second case body portion (2010) may be a plate having an XY plane.

[0054] The second case body portion (2010) may include an outer surface (2010a) of the second case body portion forming the upper surface of the steering sensor (10), and an inner surface (2010b) of the second case body portion facing the outer surface (2010a) of the second case body portion.

[0055] A plurality of ribs that make the inner surface (2010b) of the second case body part rigid may be formed on the inner surface (2010b) of the second case body part. The ribs may have a grid shape.

[0056] A first protrusion (2100) protruding in a third direction (Z-axis direction) may be formed on the inner surface (2010b) of the second case body portion. The first protrusion (2100) may support the auxiliary gear (200) in at least one of the first, second, and third directions (X-axis, Y-axis, Z-axis directions).

[0057] The first protrusion (2100) may include a first-1 protrusion (2101), a first-2 protrusion (2102), a first-3 protrusion (2103), and a first-4 protrusion (2104). The first-1 protrusion (2101), the first-2 protrusion (2102), the first-3 protrusion (2103), and the first-4 protrusion (2104) may be arranged parallel to each other in the X-axis direction. The first-1 protrusion (2101) may be arranged adjacent to the first-2 protrusion (2101). The first-3 protrusion (2101) may be arranged adjacent to the first-4 protrusion (2104). The first distance (D1) between the first-1 protrusion (2101) and the first-2 protrusion (2101) may be smaller than the second distance (D2) between the first-3 protrusion (2101) and the first-4 protrusion (2104).

[0058] The first-1 protrusion (2101) and the first-4 protrusion (2104) may be positioned adjacent to the second case inner surface (2020b), respectively. The first-1 protrusion (2101) and the first-4 protrusion (2104) may be adjacent to the second case inner surface (2020b) facing each other in the X-axis direction. At least one of the first-1 protrusion (2101) and the first-4 protrusion (2104) may be adjacent to the second case inner surface (2020b).

[0059] The second case (2000) may have a second case side (2020) formed by extending in the Z-axis direction from the end of the second case body part (2010).

[0060] The second case side (2020) may have the second case inner surface (2020b) and the second case outer surface (2020a). The second case outer surface (2020a) may form a part of the side of the vehicle steering sensor (10). The second case side (2020) may be combined with the first case side (1020).

[0061] A second protrusion (2200) for supporting the auxiliary gear (200) from the side may be formed on the inner surface (2020b) of the second case. Here, the side may be any side in the lateral direction relative to the upper and lower (Z-axis direction). The second protrusion (2200) may be formed parallel to the X-axis direction, but is not limited thereto, and may also protrude at an angle from the X-axis direction. The second protrusion (2200) may be located on the same line as the first protrusion (2100), but is not limited thereto.

[0062] The second protrusion (2200) may include a second-1 protrusion (2201) and a second-2 protrusion (2202). For example, the second-1 protrusion (2201) may protrude toward the first-1 protrusion (2101) from the second case inner surface (2020b) adjacent to the first-1 protrusion (2101). The second-2 protrusion (2202) may protrude toward the first-4 protrusion (2104) from the second case inner surface (2020b) adjacent to the first-4 protrusion (2104).

[0063] Figure 5 is a cross-sectional view along A-A' of Figure 1. Figure 6 is an enlarged view of region B of Figure 5.

[0064] Refer to FIGS. 5 and FIGS. The first auxiliary gear (210) may include a first auxiliary gear body portion (211), a first auxiliary gear gear portion (212), and a first auxiliary gear ring portion (214). The first auxiliary gear (210) may further include a first auxiliary gear stepped portion (213).

[0065] The first auxiliary gear body portion (211) may include a first auxiliary gear groove (211a) formed on its bottom surface and a magnet groove (211c) in which the magnet (400) is disposed. The magnet groove (211c) may be provided on the upper surface of the body portion (211).

[0066] The first-1 support member (1110) can be inserted into the first auxiliary gear groove (211a).

[0067] The first auxiliary gear section (212) may be formed integrally with the first auxiliary gear body section (211). The first auxiliary gear section (212) may extend from the first auxiliary gear body section (211) in an outer direction (X-axis direction) of the first auxiliary gear body section (211). Here, the outer direction may be a radial direction centered on the Z-axis. The first auxiliary gear section (212) may mesh with the main gear section (120).

[0068] The first auxiliary gear step portion (213) may protrude stepwise from the lower surface of the first auxiliary gear gear portion (212). The first auxiliary gear step portion (213) may be supported by the first-2 support portion (1120). The first auxiliary gear step portion (213) and the first-2 support portion (1120) may come into contact.

[0069] The first auxiliary gear ring portion (214) may be formed to protrude in a third direction (Z-axis direction) from the first auxiliary gear body portion (211). The first auxiliary gear ring portion (214) may have a ring shape. The first auxiliary gear ring portion (214) and the first auxiliary gear body portion (211) may form a first support groove (211b).

[0070] The second auxiliary gear (210) may include a second auxiliary gear body portion (221), a second auxiliary gear gear portion (222), and a second auxiliary gear ring portion (224). The description of the second auxiliary gear may be applied to the description of the first auxiliary gear.

[0071] The second auxiliary gear body portion (221) may include a second auxiliary gear groove (221a) formed on the bottom surface of the second auxiliary gear body portion, and a magnet groove (221c) in which the magnet (400) is disposed. The second-1 support portion (1210) may be inserted into the first auxiliary gear groove (221a).

[0072] The second auxiliary gear section (222) and the second auxiliary gear body section (221) may be formed integrally. The second auxiliary gear section (222) may extend outwardly (in the X-axis direction) of the second auxiliary gear body section (221) at a position spaced apart in the third direction (in the Z-axis direction) from the bottom surface of the second auxiliary gear body section (221). The second auxiliary gear section (222) may mesh with the main gear section (120).

[0073] The second auxiliary gear ring portion (224) may be formed by protruding in a third direction (Z-axis direction) from the second auxiliary gear body portion (221). The second auxiliary gear ring portion (224) may have a ring shape. The second auxiliary gear ring portion (224) and the second auxiliary gear body portion (221) may form a second support groove (221b).

[0074] FIG. 6 is an enlarged view of area B of FIG. 5. Below, the explanation will focus on the first auxiliary gear (210) of area B of FIG. 5, but it can be extended and applied to the second auxiliary gear (220).

[0075] A first embodiment of the present invention will be described with reference to FIG. 6.

[0076] The first-1 protrusion (2101) and the first-2 protrusion (2102) may extend from the inner surface (2010b) of the second case body portion in the direction of the first auxiliary gear (210). The first-1 protrusion (2101) and the first-2 protrusion (2102) may penetrate the substrate (300). That is, the first-1 protrusion (2101) and the first-2 protrusion (2102) may protrude vertically downward from the inner surface (2010b) of the second case body portion. The ends of the first-1 protrusion (2101) and the first-2 protrusion (2102) may be placed in the first support groove (211b). Here, placement may include support or contact. The first-1 protrusion (2101) and the first-2 protrusion (2102) can be in contact with and supported by the inner ring of the first auxiliary gear ring portion (214). In other words, the first-1 protrusion (2101) and the first-2 protrusion (2102) can be overlapped in a vertical direction with the first auxiliary gear body portion (211).

[0077] The second-1 protrusion (2201) protruding from the inner surface (2020b) of the second case can support the first auxiliary gear body (211) and / or the first auxiliary gear ring (214) in the X-axis direction.

[0078] A second embodiment of the present invention will be described with reference to FIG. 6.

[0079] The first-1 protrusion (2101) and the first-2 protrusion (2102) may extend from the inner surface (2010b) of the second case body part through the substrate (300) in the direction of the first auxiliary gear (210). That is, the first-1 protrusion (2101) and the first-2 protrusion (2102) may protrude vertically downward from the inner surface (2010b) of the second case body part. The first-1 protrusion (2101) and the first-2 protrusion (2102) according to the second embodiment may support the outer ring of the first auxiliary gear ring part (214). In other words, the first-1 protrusion (2101) and the first-2 protrusion (2102) may overlap vertically with the first auxiliary gear gear part (212).

[0080] In another embodiment, the second case body part (2010) may not have the second-1 protrusion (2201).

[0081] In another embodiment, the second-1 protrusion (2201) may be formed at a position that does not overlap with the first-1 protrusion (2101) and the first-2 protrusion (2102) in the X-axis direction. Here, non-overlapping may include non-overlapping in space. The second-1 protrusion (2201) may support the first auxiliary gear body portion (211) and / or the first auxiliary gear ring portion (214).

[0082] FIG. 7 illustrates a substrate of a vehicle steering sensor according to a third embodiment. FIG. 8 illustrates region B of FIG. 5 in a vehicle steering sensor according to a third embodiment.

[0083] Refer to FIGS. 7 and FIGS. 8. The substrate (300) according to the third embodiment may include a third support member (350) disposed on a first surface (S1), which is the bottom surface of the substrate. The third support member (350) may be an additional component attached to the substrate (300). The third support member (350) may be soldered and fastened. It is not limited thereto, but may be a structure formed integrally with the substrate (300).

[0084] The third support member (350) may include a third-1 support member (351), a third-2 support member (352), a third-3 support member (353), and a third-4 support member (354). At least two of the third-1 support member (351), the third-2 support member (352), the third-3 support member (353), and the third-4 support member (354) may be arranged side by side in the X-axis direction.

[0085] The above 3-1 support member (351) and the above 3-2 support member (352) may be arranged adjacently. The above 3-3 support member (353) and the above 3-4 support member (354) may be arranged adjacently.

[0086] The Hall sensor (310) may be positioned between the third-1 support member (351) and the third-2 support member (352), and between the third-3 support member (353) and the third-4 support member (354).

[0087] The third-1 support member (351) and the third-2 support member (352) may protrude in the direction of the first auxiliary gear (210). The third-1 support member (351) and the third-2 support member (352) may support the inner ring of the first auxiliary gear ring member (214) by contacting it. Through the third support member (350), the substrate (300) and the first auxiliary gear (210) can support each other. As a result, the assembly tolerance between the first auxiliary gear (210) and the main gear member (120) can be reduced. Consequently, backlash of the gear may not occur. Consequently, the sensor can be used for a longer period, and product failure can be prevented.

[0088] Additionally, although not illustrated, the second case body portion (2010) may include the second-1 protrusion (2201) protruding from the inner surface (2020b) of the second case in the direction of the first auxiliary gear (210). However, it is not limited thereto, and the second-1 protrusion (2201) may be omitted.

[0089] A fourth embodiment of the present invention will be described with reference to FIGS. 7 and FIGS. 8.

[0090] The above third-1 support member (351) and the above third-2 support member (352) can be supported by contacting the outer ring of the above first auxiliary gear ring member (214). The substrate (300) and the above first auxiliary gear (210) can be supported by each other by the above third support member (350). As a result, the assembly tolerance between the above first auxiliary gear (210) and the above main gear member (120) is reduced, and backlash may not occur. Additionally, although not illustrated, the above second case body member (2010) may include the above second-1 protrusion (2201) protruding from the above second case inner surface (2020b) toward the above first auxiliary gear (210). However, not limited thereto, the above second-1 protrusion (2201) may be omitted.

[0091] The steering sensor (10) for a vehicle according to the present invention can directly contact the auxiliary gear (200) in the upper case and the lower case. Here, contact may mean contact without the intervention of other members. For example, it may refer to the absence of the intervention of another member, such as a separate additional case. Here, the additional case may refer to another member separately attached to the case and / or the lower case. Manufacturing costs can be reduced by not providing the additional case.

[0092] The steering sensor (10) for a vehicle according to the present invention can be supported by upper and lower cases without additional members. Accordingly, the assembly tolerance of the auxiliary gear (200) can be reduced, and backlash between the auxiliary gear (200) and the main gear (100) can be prevented. According to another embodiment of the present invention, the auxiliary gear (200) is supported by a support member formed on the lower case and the substrate, thereby reducing the assembly tolerance of the auxiliary gear (200) and preventing backlash between the auxiliary gear (200) and the main gear (100).

[0093] Although the above description has focused on the embodiments, this is merely an example and is not intended to limit the embodiments. A person skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. For instance, each component specifically shown in the embodiments may be modified and implemented. Furthermore, differences related to such modifications and applications should be interpreted as being included within the scope of the embodiments set forth in the appended claims.

[0094] A steering sensor for a vehicle according to the present invention can achieve highly reliable operation of the steering sensor, a low cost, and prevention of product aging.

Claims

1. A case having a first case and a second case that are combined to form an internal receiving space; A shaft holder rotatably disposed in the above case; A main gear provided on the outer circumference of the shaft holder above; A plurality of auxiliary gears linked to the main gear above; A support member provided in the first case above, on which a first side of at least one of the plurality of auxiliary gears is seated; and A steering sensor for a vehicle, comprising a first protrusion that is provided in the second case and extends in a direction toward the first case, and supports the second side of the first auxiliary gear.

2. In Paragraph 1, The second case above protrudes toward the first auxiliary gear and further includes a second protrusion, The second protrusion supports the side of the first auxiliary gear, Vehicle steering sensor.

3. In Paragraph 1, The first auxiliary gear includes an auxiliary gear ring portion extending in the direction of the substrate from the second side, and The first protrusion is positioned at least one of the inner side of the auxiliary gear ring portion and the outer side of the auxiliary gear ring portion. Vehicle steering sensor.

4. In Paragraph 1, The above first and second cases are directly connected by at least one fastening member provided at the periphery of each case being connected to each other. Vehicle steering sensor.

5. In Paragraph 4, The above main gear, the plurality of auxiliary gears, the support member, and the first protrusion are all placed inside the receiving space. Vehicle steering sensor.

6. In Paragraph 1, The first side and the second side of the first auxiliary gear are spaced apart from each other in the axial direction of the shaft supported by the shaft holder. Vehicle steering sensor.

7. In Paragraph 1, It further includes a substrate located between the first auxiliary gear and the second case, and The first protrusion above penetrates the substrate, Vehicle steering sensor.

8. A case having a first case and a second case that are joined together in contact with each other to form an internal receiving space; A shaft holder rotatably disposed in the above case; A main gear provided on the outer circumference of the shaft holder above; A plurality of auxiliary gears linked to the main gear above; A substrate positioned between at least one of the plurality of auxiliary gears and the second case; A support member provided in the first case above, on which one side of at least one of the plurality of auxiliary gears is seated; and A steering sensor for a vehicle, comprising a first protrusion provided on the substrate and extending toward the first case to support the other side of at least one of the plurality of auxiliary gears.

9. In Paragraph 8, The second case further includes a second protrusion that protrudes in the direction of at least one of the plurality of auxiliary gears. The second protrusion supports the side of the auxiliary gear. Vehicle steering sensor.

10. In Paragraph 8, At least one of the plurality of auxiliary gears includes an auxiliary gear ring portion extending in the direction of the substrate from the other side of the auxiliary gear, The above protrusion is located on the inner or outer side of the auxiliary gear ring portion, Vehicle steering sensor.

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