Sensing assembly, height sensor and vehicle

Abstract

The utility model belongs to the technical field of sensors, and particularly relates to an induction assembly, a height sensor and a vehicle, and the induction assembly comprises a coil support which is internally provided with a cylindrical through hole penetrating through the coil support; the iron core support comprises a support body, a first end and a second end, the support body is arranged in the columnar through hole, and the first end and the second end are arranged at the two ends, in the axial direction of the columnar through hole, of the support body and located outside the columnar through hole; the iron core is arranged in the columnar through hole and fixedly connected with the iron core support, and the iron core and the iron core support can integrally rotate in the columnar through hole; the armature is arranged outside the coil support and comprises a third end and a fourth end in the axial direction of the columnar through hole, the third end is movably connected with the first end, and the fourth end is movably connected with the second end. According to the utility model, the structure is simple, the number of parts needing to be changed is small when the sensor is iterated or meets individual order requirements, and the complexity of processing procedures and the production cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to a response subassembly, height sensor and vehicle. BACKGROUND

[0002] ECAS (Electronically-Controlled Air Suspension, ECAS) is a system used to improve the ride comfort, handling and load capacity of vehicles. Height sensors can provide real-time height data for the control system, and through these data, the ECAS system can accurately adjust the air pressure of the air suspension system to maintain the vehicle's level height under different road conditions and load conditions. Height sensors can monitor the distance between the vehicle body and the ground in real time, quickly respond to changes in vehicle height, and transmit data to the ECAS controller. During vehicle driving, height sensors can detect road unevenness and vehicle dynamic changes (such as acceleration, braking, turning, etc.), and adjust the air pressure of the air suspension system through the ECAS controller to ensure that the vehicle always maintains the optimal height, thereby improving the stability and comfort of driving. In the ECAS system, the height sensor plays a crucial role.

[0003] In related technologies, the height sensor adopts a coil structure, which has a complex structure design. If the sensor air gap needs to be modified, the entire coil and response subassembly structure need to be updated, which is complex to process. SUMMARY

[0004] The embodiments of the present application provide a response subassembly, height sensor and vehicle to at least solve the technical problem that the structure design of the current height sensor is complex, and the entire response subassembly needs to be updated when the product iteration needs to change the sensor air gap, thereby causing high product iteration cost.

[0005] According to a first aspect of the embodiments of the present application, a response subassembly is provided, which comprises:

[0006] A coil support having a columnar through hole penetrating through the coil support;

[0007] An iron core support comprising a support main body, a first end portion and a second end portion, the support main body being arranged in the columnar through hole and arranged along the axial direction of the columnar through hole, the first end portion and the second end portion being arranged at both ends of the support main body along the axial direction of the columnar through hole and both being located outside the columnar through hole;

[0008] An iron core arranged in the columnar through hole and fixedly connected with the iron core support, the iron core and the iron core support being integrally rotatable in the columnar through hole;

[0009] An armature is arranged outside the coil support, the armature comprises a third end portion and a fourth end portion along the axial direction of the columnar through hole, the third end portion is movably connected with the first end portion, the fourth end portion is movably connected with the second end portion, and the iron core and the iron core support as a whole can rotate relative to the armature.

[0010] By movably connecting the third end portion of the armature with the first end portion of the iron core support and movably connecting the fourth end portion of the armature with the second end portion of the iron core support, when it is necessary to adjust the size of the air gap formed between the armature and the iron core, only the distance of the connection position of the third end portion and the first end portion relative to the armature and the distance of the connection position of the fourth end portion and the second end portion relative to the armature need to be adjusted, the structure is simple, and the air gap of the height sensor is provided with more convenient conditions for iteration or personalized order demand, fewer parts need to be changed, and the machining process complexity and production cost are reduced.

[0011] With reference to the first aspect, in an optional implementation manner of the embodiment of the present application, the third end portion is inserted and matched with the first end portion, and / or the fourth end portion is inserted and matched with the second end portion.

[0012] With reference to the first aspect, in an optional implementation manner of the embodiment of the present application, a side wall of the first end portion is provided with a first insertion slot, a side wall of the second end portion is provided with a second insertion slot, the third end portion is inserted and matched with the first insertion slot, and the fourth end portion is inserted and matched with the second insertion slot.

[0013] With reference to the first aspect, in an optional implementation manner of the embodiment of the present application, the armature comprises a first armature section, a second armature section and a third armature section, the first armature section is arranged along the axial direction of the columnar through hole, the second armature section and the third armature section are located at two ends of the first armature section along the axial direction of the columnar through hole, and the second armature section and the third armature section are arranged along the radial direction of the columnar through hole, the second armature section forms the third end portion, and the third armature section forms the fourth end portion.

[0014] With reference to the first aspect, in an optional implementation manner of the embodiment of the present application, the support body is provided with a limiting portion, the iron core close to the side wall of the support body is provided with a matching portion, and the limiting portion and the matching portion are limiting matched to fixedly connect the iron core and the iron core support.

[0015] With reference to the first aspect, in an optional implementation manner of the embodiment of the present application, the limiting portion comprises a limiting column, and the matching portion comprises a limiting slot, and the limiting slot is inserted and matched with the limiting column.

[0016] With reference to the first aspect, in an optional implementation of the embodiments of the present application, the support body is further provided with a positioning column, and the positioning column and the limiting column are located on opposite sides of the support body, and a preset gap is formed between the positioning column and the inner wall surface of the columnar through hole.

[0017] According to a second aspect of the embodiments of the present application, a height sensor is provided, the height sensor comprising:

[0018] a housing, which is internally provided with a receiving cavity;

[0019] The sensing assembly provided in the first aspect of the embodiments of the present application is arranged in the receiving cavity.

[0020] With reference to the second aspect, in an optional implementation of the embodiments of the present application, the housing comprises a bottom shell and an end cover, the receiving cavity is formed in the bottom shell, the end cover is used for closing the receiving cavity, the end cover is provided with a first support rib and a second support rib, and in the assembled state of the sensing assembly and the housing, the first support rib abuts against the coil support, and the second support rib abuts against the armature.

[0021] And / or, the housing comprises a bottom shell and an end cover, the receiving cavity is formed in the bottom shell, the end cover is used for closing the receiving cavity, the bottom shell is provided with a third support rib and a fourth support rib, and in the assembled state of the sensing assembly and the housing, the third support rib abuts against the coil support, and the fourth support rib abuts against the armature.

[0022] According to a third aspect of the embodiments of the present application, a vehicle is provided, the vehicle comprising the sensing assembly provided in the first aspect of the embodiments of the present application, or comprising the height sensor provided in the second aspect of the embodiments of the present application.

[0023] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0025] Figure 1 is a structural diagram of the sensing assembly of the embodiments of the present application.

[0026] Figure 2 is a side view of the sensing assembly of the embodiments of the present application.

[0027] Figure 3 is a sectional view of the sensing assembly of the embodiments of the present application.

[0028] Figure 4 is a structural diagram of the coil support of the embodiments of the present application.

[0029] Figure 5 Figure 1 is an assembly structure diagram of a coil support, a core support and a core according to an embodiment of the present application.

[0030] Figure 6 Figure 2 is a schematic diagram of an inductive assembly according to an embodiment of the present application.

[0031] Figure 7 Figure 3 is a schematic diagram of an air gap cross-sectional area of an armature and a core according to an embodiment of the present application.

[0032] Figure 8 Figure 4 is a sectional view of a height sensor according to an embodiment of the present application.

[0033] Figure 9 Figure 5 is a diagram of a bottom shell and an end cover in a separated state of a housing according to an embodiment of the present application.

[0034] The reference signs are as follows:

[0035] 10, inductive assembly; 1, coil support; 11, columnar through hole;

[0036] 2, core support; 21, support body; 22, first end portion; 221, first insertion slot; 23, second end portion; 231, second insertion slot; 24, positioning column; 25, limiting portion;

[0037] 3, core; 31, matching portion;

[0038] 4, armature; 401, third end portion; 402, fourth end portion; 41, first armature section; 42, second armature section; 43, third armature section;

[0039] 50, housing; 51, bottom shell; 511, third support rib; 512, fourth support rib; 513, accommodating cavity; 52, end cover; 521, first support rib; 522, second support rib. DETAILED DESCRIPTION

[0040] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should be within the scope of protection of the present application.

[0041] It should be understood that "multiple" as mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. In addition, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with substantially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply that they are different.

[0042] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0043] The technical solution of this embodiment will be described in detail below with reference to the accompanying drawings. In the absence of conflict, the following implementation methods and examples can be combined with each other.

[0044] This embodiment proposes a sensing component 10, such as Figures 1-5 As shown, the sensing component 10 includes a coil support 1, an iron core support 2, an iron core 3, and an armature 4. The coil support 1 has a cylindrical through-hole 11 penetrating it. The iron core support 2 includes a support body 21, a first end 22, and a second end 23. The support body 21 is disposed within the cylindrical through-hole 11 and is arranged along the axial direction of the cylindrical through-hole 11. The first end 22 and the second end 23 are located at both ends of the support body 21 along the axial direction of the cylindrical through-hole 11, and are both located outside the cylindrical through-hole 11. The iron core 3 is disposed within the cylindrical through-hole 11 and is fixedly connected to the iron core support 2. The iron core 3 and the iron core support 2 as a whole can rotate within the cylindrical through-hole 11.

[0045] The armature 4 is located outside the coil support 1. The armature 4 includes a third end 401 and a fourth end 402 along the axial direction of the columnar through hole 11. The third end 401 is movably connected to the first end 22, and the fourth end 402 is movably connected to the second end 23. The iron core 3 and the iron core support 2 as a whole can rotate relative to the armature 4. During the rotation of the iron core 3 and the iron core support 2 as a whole, the iron core 3 and the armature 4 continuously overlap and separate. As the overlapping area of ​​the iron core 3 and the armature 4 changes, the inductance of the sensing component 10 will change.

[0046] The third end portion 401 of the armature 4 is movably connected with the first end portion 22 of the core support 2, and the fourth end portion 402 of the armature 4 is movably connected with the second end portion 23 of the core support 2. When it is needed to adjust the size of the air gap formed between the armature 4 and the core 3, only the distance between the connection position of the third end portion 401 and the first end portion 22 relative to the armature 4 and the distance between the connection position of the fourth end portion 402 and the second end portion 23 relative to the armature 4 need to be adjusted, the structure is simple, and the air gap of the height sensor is provided with more convenient conditions when the sensor is iterated or meets the personalized order demand, the parts that need to be changed are less, and the machining process complexity and production cost are reduced.

[0047] It should be noted that the third end portion 401 and the fourth end portion 402 of the embodiment are only used to distinguish different end portions of the armature 4, and do not mean that the armature 4 also has a first end portion and a second end portion.

[0048] In an optional implementation manner, as shown in Figure 2 and Figure 3 , the third end portion 401 is inserted and matched with the first end portion 22, and / or the fourth end portion 402 is inserted and matched with the second end portion 23, so as to simplify the assembly between the core support 2 and the armature 4, the structure is simple, and the production cost is lower.

[0049] In other implementable manners, the third end portion and the first end portion 22, and the fourth end portion 402 and the second end portion 23 can also be connected in a clamping manner or by a connecting piece, which is not limited here.

[0050] In an optional implementation manner, as shown in Figure 3 , a side wall of the first end portion 22 is provided with a first slot 221, a side wall of the second end portion 23 is provided with a second slot 231, the third end portion 401 is inserted and matched with the first slot 221, and the fourth end portion 402 is inserted and matched with the second slot 231. In an example, as shown in Figure 3 , the armature 4 includes a first armature section 41, a second armature section 42 and a third armature section 43, the first armature section 41 is arranged along the axial direction of the columnar through hole 11, the second armature section 42 and the third armature section 43 are located at two ends of the first armature section 41 along the axial direction of the columnar through hole 11, and the second armature section 42 and the third armature section 43 are arranged along the radial direction of the columnar through hole 11, the second armature section 42 forms the third end portion 401, and the third armature section 43 forms the fourth end portion 402.

[0051] The embodiment can only adjust the distance between the setting positions of the first slot 221 and the second slot 231 relative to the coil support 1 when it is needed to adjust the air gap of the sensor, and provides more convenient conditions for modifying the air gap of the sensor.

[0052] In an alternative implementation, as shown in Figure 3 The support body 21 is provided with a limiting portion 25, and the core 3 is provided with a cooperating portion 31 on the side wall close to the support body 21. The limiting portion 25 and the cooperating portion 31 are in limiting cooperation to fix and connect the core 3 and the core support 2.

[0053] In this embodiment, the limiting portion 25 on the support body 21 and the cooperating portion 31 on the core 3 are in limiting cooperation to fix the support body 21 and the core 3, thereby improving the reliability of the assembly between the core 3 and the support body 21.

[0054] In an example, as shown in Figure 3 The limiting portion 25 includes a limiting column, and the cooperating portion 31 includes a limiting slot. The limiting column and the limiting slot are in plug-in cooperation. In this embodiment, the limiting column and the limiting slot are in plug-in cooperation to fix the support body 21 and the core 3, which is simple in structure, easy to operate, and high in reliability.

[0055] In a preferred embodiment, as shown in Figure 3 The limiting portion 25 includes a plurality of limiting columns, which are arranged at intervals along the axial direction of the columnar through hole 11 on the support body 21. The cooperating portion 31 includes a plurality of limiting slots, which correspond to the plurality of limiting columns one by one. This further improves the reliability of the assembly between the core 3 and the support body 21.

[0056] In other realizable ways, the core 3 and the support body 21 can also be connected by clamping, connecting members, bonding, etc., which are not limited here.

[0057] In an alternative implementation, as shown in Figure 3 The support body 21 is further provided with a positioning column 24, and the positioning column 24 and the limiting column are located on opposite sides of the support body 21. The positioning column 24 and the inner wall surface of the columnar through hole 11 have a preset gap.

[0058] In this embodiment, the positioning column 24 is arranged on the support body 21 to ensure the stability of the core 3 and the core support 2 as a whole in the rotating state in the columnar through hole 11. The positioning column 24 and the inner wall surface of the columnar through hole 11 have a preset gap to avoid the inner wall surface of the columnar through hole 11 hindering the rotation of the core support 2.

[0059] The structure design principle of the inductive assembly 10 of this embodiment is introduced as follows.

[0060] Figure 6 And Figure 7 The schematic diagram of the inductive assembly 10 of this embodiment is shown. Since the total magnetic resistance R m of the magnetic circuit of the inductive assembly 10, the total length l δ of the air gap, the vacuum permeability μ0, and the air gap cross-sectional area S satisfy the formula: And the inductance L is related to the number of turns N and the total magnetic resistance R m Satisfy the formula:

[0061] Referring to Figure 7 , Figure 7 The angle θ in the formula is the offset angle of the core 3 relative to the armature 4, Figure 7 The area of the shaded part in the formula is the cross-sectional area S of the air gap between the core 3 and the armature 4.

[0062] From the above formula, it can be seen that the change of the air gap of the induction assembly 10 will affect the self-inductance change, sensitivity, linearity and response time of the induction assembly 10, so different air gaps can be obtained by special structural design, and thus induction assemblies 10 with different parameters and performance can be obtained. The size of the air gap is related to the distance between the core 3 and the armature 4, so the distance between the core 3 and the armature 4 can be adjusted to adjust the air gap.

[0063] In this embodiment, the third end portion 401 of the armature 4 is movably connected to the first end portion 22 of the bracket, and the fourth end portion 402 of the armature 4 is movably connected to the second end portion 23 of the bracket, so that the distance between the armature 4 and the core 3 can be adjusted by adjusting the connection position of the third end portion 401 on the first end portion 22 and the connection position of the fourth end portion 402 on the second end portion 23. In the case of personalized order demand or product iteration, different parameters of the induction assembly 10 can be obtained by adjusting the connection position of the first end portion 22 of the core bracket 2 and the third end portion 401 and the connection position of the second end portion 23 and the fourth end portion 402, without the need for adaptive adjustment of other components of the induction assembly 10, reducing the need to change parts and reducing production costs.

[0064] This embodiment also proposes a height sensor, as shown in Figure 8 The height sensor includes a shell 50 and the induction assembly 10 proposed above, and the shell 50 is provided with a receiving cavity 513, and the induction assembly 10 is arranged in the receiving cavity 513.

[0065] When the product needs to be iterated or faces the demand of personalized orders, the height sensor of this embodiment needs to adjust the parameters of the sensor by adjusting the air gap formed between the armature 4 and the core 3, and only the connection position of the first end portion 22 of the core bracket 2 and the third end portion 401 and the connection position of the second end portion 23 and the fourth end portion 402 need to be adjusted, without the need to change other parts, reducing the complexity of the machining process and reducing the production cost.

[0066] In a preferred embodiment, as shown in Figure 8 and Figure 9As shown, the shell 50 comprises a bottom shell 51 and an end cover 52, a containing cavity 513 is formed in the bottom shell 51, the end cover 52 is used for closing the containing cavity 513, and the end cover 52 is fixed with the bottom shell 51 through a connecting member, for example, the end cover 52 is fixed with the bottom shell 51 through screws.

[0067] The end cover 52 is provided with a first support rib 521 and a second support rib 522, in the assembled state of the induction assembly 10 and the shell 50, the first support rib 521 abuts against the coil support 1, and the second support rib 522 abuts against the armature 4; and / or, the bottom shell 51 is provided with a third support rib 511 and a fourth support rib 512, in the assembled state of the induction assembly 10 and the shell 50, the third support rib 511 abuts against the coil support 1, and the fourth support rib 512 abuts against the armature 4.

[0068] By means of the first support rib 521 and the second support rib 522, and / or by means of the third support rib 511 and the fourth support rib 512, the armature 4 and the coil support 1 of the induction assembly 10 can be fixed, so as to avoid the movement of the armature 4 and the coil support 1 in the containing cavity 513, to ensure the assembly reliability between the induction assembly 10 and the shell 50, to ensure the accuracy of the height detection result of the height sensor, and at the same time, the positioning mode of the induction assembly 10 in the containing cavity 513 is simple, without the need of adding other connecting members, thereby reducing the production cost.

[0069] The embodiment further provides a vehicle, which comprises the induction assembly 10 or the height sensor provided above.

[0070] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the application not be limited to the exact details shown and described herein, and that work predating and postdating the application can be employed along with modifications and alterations to the embodiments. The scope of the application is expressly set forth in the following claims.

Claims

1. A sensing component (10), characterized in that, The sensing component (10) includes: A coil support (1) has a cylindrical through hole (11) that penetrates the coil support (1); The iron core support (2) includes a support body (21), a first end (22) and a second end (23). The support body (21) is disposed in the columnar through hole (11) and is disposed along the axial direction of the columnar through hole (11). The first end (22) and the second end (23) are disposed at both ends of the support body (21) along the axial direction of the columnar through hole (11) and are both located outside the columnar through hole (11). The iron core (3) is disposed in the columnar through hole (11) and is fixedly connected to the iron core support (2). The iron core (3) and the iron core support (2) as a whole can rotate in the columnar through hole (11). An armature (4) is disposed outside the coil support (1). The armature (4) includes a third end (401) and a fourth end (402) along the axial direction of the columnar through hole (11). The third end (401) is movably connected to the first end (22), and the fourth end (402) is movably connected to the second end (23). The iron core (3) and the iron core support (2) as a whole can rotate relative to the armature (4).

2. The sensing component (10) according to claim 1, characterized in that, The third end (401) is inserted into the first end (22), and / or the fourth end (402) is inserted into the second end (23).

3. The sensing component (10) according to claim 2, characterized in that, The first end (22) has a first slot (221) on its side wall, the second end (23) has a second slot (231) on its side wall, the third end (401) is inserted into the first slot (221), and the fourth end (402) is inserted into the second slot (231).

4. The sensing component (10) according to claim 3, characterized in that, The armature (4) includes a first armature segment (41), a second armature segment (42), and a third armature segment (43). The first armature segment (41) is arranged along the axial direction of the columnar through hole (11). The second armature segment (42) and the third armature segment (43) are located at both ends of the first armature segment (41) along the axial direction of the columnar through hole (11). The second armature segment (42) and the third armature segment (43) are both arranged along the radial direction of the columnar through hole (11). The second armature segment (42) forms the third end (401), and the third armature segment (43) forms the fourth end (402).

5. The sensing component (10) according to any one of claims 1-4, characterized in that, The support body (21) is provided with a limiting part (25), and the iron core (3) is provided with a mating part (31) near the side wall of the support body (21). The limiting part (25) and the mating part (31) are mutually limiting and mating to fix the iron core (3) to the iron core support (2).

6. The sensing component (10) according to claim 5, characterized in that, The limiting part (25) includes a limiting post, and the mating part (31) includes a limiting groove, which is inserted into the limiting post.

7. The sensing component (10) according to claim 6, characterized in that, The support body (21) is also provided with a positioning post (24), the positioning post (24) and the limiting post are located on opposite sides of the support body (21), and there is a preset gap between the positioning post (24) and the inner wall surface of the columnar through hole (11).

8. A height sensor, characterized in that, The height sensor includes: The outer casing (50) has a receiving cavity (513) inside; The sensing component (10) according to any one of claims 1-7, wherein the sensing component (10) is disposed within the accommodating cavity (513).

9. The height sensor according to claim 8, characterized in that, The outer casing (50) includes a bottom shell (51) and an end cap (52). The accommodating cavity (513) is formed in the bottom shell (51). The end cap (52) is used to close the accommodating cavity (513). The end cap (52) is provided with a first support rib (521) and a second support rib (522). When the sensing component (10) is assembled with the outer casing (50), the first support rib (521) abuts against the coil support (1), and the second support rib (522) abuts against the armature (4). And / or, the housing (50) includes a bottom shell (51) and an end cap (52), the accommodating cavity (513) is formed in the bottom shell (51), the end cap (52) is used to close the accommodating cavity (513), the bottom shell (51) is provided with a third support rib (511) and a fourth support rib (512), in the assembled state of the sensing component (10) and the housing (50), the third support rib (511) abuts against the coil support (1), and the fourth support rib (512) abuts against the armature (4).

10. A vehicle, characterized in that, The vehicle includes the sensing component (10) according to any one of claims 1-7, or includes the height sensor according to claim 8 or 9.

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