Electromagnetic spring and vehicle

Abstract

The utility model discloses an electromagnetic spring and a vehicle, and the electromagnetic spring comprises a spiral elastic body which is formed by spirally surrounding a spring wire around an axis, and the spiral elastic body comprises at least two turns; an electromagnetic part is arranged on each of at least one group of two adjacent turns of the spiral elastomer, and the orthographic projections of the electromagnetic parts on the two turns along the axis are at least partially overlapped; the wire harnesses extend along the axis and are arranged on the spiral elastic body, the electromagnetic part is connected to at least one wire harness, and the wire harnesses are used for adjusting the magnetic force of the electromagnetic part. The rigidity of the electromagnetic spring can be adjusted by changing the magnetic force between the adjacent magnetic parts, and the electromagnetic spring can be flexibly changed to adapt to different requirements for elastic force in different scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of damping structure, in particular to an electromagnetic spring and a vehicle. BACKGROUND

[0002] With the development of vehicle technology, people are increasingly pursuing comfort and more rich control functions. The vehicle is provided with a spring in multiple components, and the resilience of the spring will affect the comfort and controllability of the vehicle. For example, when the road is bumpy, the resilience of the spring will obviously affect the damping effect, and when the road is soft, the spring will also affect the support effect to some extent. In the existing vehicle, the spring is formed by winding an alloy, and the resilience of the spring is provided by the recovery force of the metal. The spring resilience is fixed after forming, and it is difficult to adapt to different requirements for resilience in increasingly complex use scenarios. CONTENT OF THE UTILITY MODEL

[0003] The present application provides an electromagnetic spring and a vehicle to solve the technical problem that the spring is difficult to adapt to different requirements for resilience in different use scenarios.

[0004] To solve the above technical problem, the present application provides an electromagnetic spring, comprising: a spiral elastic body formed by winding a spring wire around an axis, the spiral elastic body comprising at least two turns; at least one set of two adjacent turns of the spiral elastic body is provided with an electromagnetic element, and the electromagnetic elements on the two turns at least partially overlap in the orthogonal projection along the axis; a plurality of wire bundles are arranged along the axis in the spiral elastic body, and the electromagnetic elements are connected to at least one wire bundle, and the wire bundle is used to adjust the magnetic force of the electromagnetic element.

[0005] Among them, the spring wire is provided with a plurality of installation grooves in the region where the electromagnetic element is located, and the electromagnetic element is embedded in the corresponding installation groove.

[0006] Among them, the installation groove extends along the spiral winding direction of the spring wire, the electromagnetic element is spirally arranged, the lift angle of the electromagnetic element is the same as the lift angle of the installation groove, and along the spiral winding direction of the spring wire, the length of the electromagnetic element is equal to the length of the installation groove.

[0007] Among them, the extension length of each installation groove is equal to half of the turn length of the spring wire.

[0008] Among them, the spiral elastic body has a central plane passing through the axis, and each installation groove is located on the same side of the central plane.

[0009] Among them, the installation groove is a through groove, and the through direction of each installation groove is the same and parallel to the axis direction.

[0010] Among them, the opening of the installation groove is provided with a limiting part, the limiting part at least partially covers the opening and divides the opening into at least two regions, and along the spiral winding direction of the spring wire, the length of each region is less than the length of the electromagnetic element.

[0011] The electromagnetic member is arranged on the outer surface of the spring wire at the corresponding turns of the helical elastic body.

[0012] The spring wire is hollow, the spring wire comprises opposite first and second ends, the wire harness is arranged through the spring wire from the first end to the second end, and the wire harness is sequentially connected with the electromagnetic member, so as to form a power supply path.

[0013] To solve the above problems, the application provides a vehicle comprising the electromagnetic spring.

[0014] The application has the following beneficial effects: Different from the prior art, the application provides an electromagnetic spring and a vehicle. The electromagnetic spring comprises a helical elastic body and a plurality of wire harnesses. The helical elastic body is formed by winding a spring wire around an axis in a helical manner. The helical elastic body comprises at least two turns. An electromagnetic member is arranged on at least one group of two adjacent turns of the helical elastic body, and the projections of the electromagnetic members on the two turns along the axis at least partially overlap. The plurality of wire harnesses are arranged along the axis in the helical elastic body. The electromagnetic member is connected to at least one wire harness. The wire harness is used to adjust the magnetic force of the electromagnetic member. Through the above arrangement, since the helical elastic body is provided with magnetic members with variable magnetism, the magnetic force between two adjacent magnetic members can be changed, so that different degrees of attractive or repulsive force are formed between the two magnetic members. When the helical elastic body is pressed, if the attractive force exists between the adjacent magnetic members, the pressing resistance can be reduced by assisting to overcome part of the elastic resistance of the helical elastic body, and if the repulsive force exists between the adjacent magnetic members, the pressing resistance can be increased by superimposing the elastic resistance of the helical elastic body. Further, the wire harness can be used to supply current to the magnetic member and change the current size, so that the magnetic force between the adjacent magnetic members can be adjusted. Therefore, the stiffness of the electromagnetic spring can be adjusted by changing the magnetic force between the adjacent magnetic members, the electromagnetic spring can be flexibly changed to adapt to different requirements for the elastic force in different scenarios, and the electromagnetic spring is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 is a first structural schematic diagram of an embodiment of the electromagnetic spring of the application;

[0017] Figure 2 is a structural schematic diagram of an embodiment of the helical elastic body of the application;

[0018] Figure 3 is an explosion schematic diagram of an embodiment of the electromagnetic spring of the application;

[0019] Figure 4 Fig. 2 is a second structural schematic diagram of an embodiment of the electromagnetic spring of the present application.

[0020] Reference signs: 10, electromagnetic spring; 1, helical elastic body; 11, spring wire; 111, first end; 112, second end; 12, electromagnetic member; 13, mounting groove; 2, wire harness; A, axis; Y, center plane. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a particular alternative embodiment. It will be explicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] The electromagnetic spring and vehicle provided by the present application will be described in detail below in combination with the embodiments.

[0024] Please refer to Figures 1 to 3 , Figure 1 Fig. 1 is a first structural schematic diagram of an embodiment of the electromagnetic spring of the present application; Figure 2 Fig. 3 is a structural schematic diagram of an embodiment of the helical elastic body of the present application; Figure 3 Fig. 4 is an exploded schematic diagram of an embodiment of the electromagnetic spring of the present application. The present application provides an electromagnetic spring 10, which comprises a helical elastic body 1 and a plurality of wire harnesses 2. The helical elastic body 1 is formed by helically winding a spring wire 11 around an axis A. The material of the helical elastic body 1 can be alloy, engineering plastic, etc. The helical elastic body 1 comprises at least two turns. At least one group of two turns of the helical elastic body 1 is provided with an electromagnetic member 12. The electromagnetic member 12 is an element capable of generating or changing a magnetic field under the action of an electric current, for example, the electromagnetic member 12 can be an electromagnet. The electromagnetic members 12 on the two turns of the helical elastic body 1 at least partially overlap in the orthogonal projection along the axis A. The plurality of wire harnesses 2 are arranged along the axis A in the helical elastic body 1. The wire harness 2 can contain a plurality of wires or signal lines. The electromagnetic member 12 is connected to at least one wire harness 2. The wire harness 2 is used to adjust the magnetic force of the electromagnetic member 12.

[0025] Specifically, the electromagnetic member 12 can form a current loop with the wire harness 2 and an external power source after being connected to the wire harness 2. The external power source can be controlled by an electric control device or the like, thereby controlling the size and direction of the current flowing through the electromagnetic member 12. When the size and direction of the current flowing through the electromagnetic member 12 are changed, the magnetic force between adjacent electromagnetic members 12 is changed. For example, the magnetic force between adjacent electromagnetic members 12 can be changed from a larger repulsive force to a smaller repulsive force, or from a larger attractive force to a larger repulsive force, etc. The magnetic members can include multiple groups, and each group includes at least two magnetic members. The multiple groups can be arranged adjacently or at intervals.

[0026] When adjacent magnetic members are connected to the same wire harness 2, the adjacent magnetic members can form different magnetism by being connected differently. For example, one of the two adjacent magnetic members can be connected in positive to the wire harness 2, and the other can be connected in reverse to the wire harness 2, so that when the wire harness 2 passes through the current, the magnetic fields generated by the two adjacent magnetic members are in opposite directions. Alternatively, the adjacent magnetic members can also be connected to different wire harnesses 2 to form different magnetism. For example, the wire harness 2 can include two wires, one wire harness 2 is connected to one of the two adjacent magnetic members, and the other wire harness 2 is connected to the other between the two adjacent magnetic members. Different wire harnesses 2 can pass through different sizes and directions of current, respectively, to differentially control the magnetic field of each magnetic member, thereby flexibly controlling the magnetic force between the magnetic members.

[0027] When the magnetism between adjacent magnetic members is changed, the attractive force or repulsive force between the two magnetic members is also changed. When the helical elastic body 1 is pressed, if the adjacent magnetic members are in an attractive state, they can assist in overcoming part of the resilience of the helical elastic body 1 to reduce the pressing resistance, and if the adjacent magnetic members are in a repulsive state, they can superimpose the elastic resistance of the helical elastic body 1 to form a larger pressing resistance. By changing the size and direction of the magnetism between adjacent magnetic members, the pressing resistance required to press the helical elastic body 1 can be indirectly changed.

[0028] Through the above arrangement, since the helical elastic body 1 is provided with magnetic members with variable magnetism, the stiffness of the electromagnetic spring 10 can be adjusted by changing the magnetic force between adjacent magnetic members. The electromagnetic spring 10 can flexibly change to adapt to different needs for elasticity in different scenarios, and is easy to use.

[0029] In an embodiment, the spring wire 11 is provided with a plurality of installation grooves 13 in the region where the electromagnetic member 12 is located. The electromagnetic member 12 is embedded in the corresponding installation groove 13. The installation groove 13 can be provided through the spring wire 11 or not. The electromagnetic member 12 can be embedded in the installation groove 13 by clamping, interference fit, adhesion, etc. When the electromagnetic member 12 is subjected to the magnetic force of the adjacent electromagnetic member 12, the electromagnetic member 12 acts on the wall of the installation groove 13 and transmits the force to the helical elastic body 1.

[0030] Through the above setting, the magnetic member can be stably installed in the installation slot 13, and the structure is simple and stable.

[0031] The shape of the installation slot 13 can be a square slot, a circular slot, an arc-shaped slot, etc. The electromagnetic member 12 can be completely matched with the shape of the installation slot 13, or can not be matched with the shape of the installation slot 13, as long as the electromagnetic member 12 can be embedded into the installation slot 13, which is not limited here.

[0032] In an embodiment, the installation slot 13 extends along the spiral winding direction of the spring wire 11. The installation slot 13 is a spiral slot. The width of the installation slot 13 along the direction perpendicular to the spiral winding direction of the spring wire 11 can remain the same. The electromagnetic member 12 is arranged in a spiral shape. The lift angle of the electromagnetic member 12 is the same as the lift angle of the installation slot 13. That is, the extension direction of the installation slot 13 is the same as the spiral winding direction of the spring wire 11. Along the spiral winding direction of the spring wire 11, the length of the electromagnetic member 12 is equal to the length of the installation slot 13.

[0033] Through the above setting, the installation slot 13 is a spiral slot and the length of the electromagnetic member 12 is equal to the length of the installation slot 13, the electromagnetic member 12 can be better fitted and embedded in the installation slot 13 along the shape of the spiral elastic body 1, the electromagnetic member 12 is stably installed, and the electromagnetic spring 10 has stable performance.

[0034] In an embodiment, the extension length of each installation slot 13 is equal to half of the length of the turn of the spring wire 11. Thus, the installation slot 13 is arranged every half turn, the spiral elastic body 1 is not easy to cause insufficient structural strength due to too many slots, and the electromagnetic member 12 can also have a larger volume, and the spiral elastic body 1 can balance the structural strength and additional electromagnetic strength.

[0035] Please refer to Figure 4 , Figure 4 is a second structural schematic diagram of an embodiment of the electromagnetic spring. In an embodiment, the spiral elastic body 1 has a central plane Y passing through the axis A. The central plane Y divides the spiral elastic body 1 into two substantially mirror-symmetrical parts. Each installation slot 13 is located on the same side of the central plane Y.

[0036] Through the above setting, since the installation slots 13 are all located on the same side of the central plane Y, the magnetic fields of the electromagnetic members 12 are also all located on the same side of the central plane Y, the electromagnetic members 12 are more overlapped along the axis A direction, and can better superimpose or offset the magnetic force, and the probability of mutual electromagnetic interference between different groups of adjacent electromagnetic members 12 is also smaller.

[0037] In addition, since the installation grooves 13 are all located on the same side of the center plane Y, the straight spring wires 11 before winding can be directly spaced apart at a substantially fixed distance when being slotted. After the spring wires 11 are spirally wound, the helical elastic body 1 in which each installation groove 13 is located on the same side of the center plane Y can be directly obtained, which is more friendly in process and simple to process.

[0038] In an embodiment, the installation groove 13 is a through groove. The electromagnetic element 12 is arranged in the through groove and exposed to the installation groove 13 at opposite ends in the through direction. The through directions of each installation groove 13 are the same and parallel to the axis A direction.

[0039] Through the above arrangement, compared with the installation groove 13 not being through, there is no solid barrier between the adjacent electromagnetic elements 12, and the magnetic force is not easily weakened by the barrier of the installation groove 13, so that the electromagnetic spring 10 is better controllable.

[0040] In an embodiment, a limiting part is arranged at the opening of the installation groove 13. The limiting part at least partially covers the opening and divides the opening into at least two areas. Along the spiral winding direction of the spring wire 11, the length of each area is less than the length of the electromagnetic element 12.

[0041] After the limiting part covers the opening, the electromagnetic element 12 cannot pass through the opening covered by the limiting part. The areas divided by the limiting part can be equal or not equal in area. The electromagnetic element 12 is difficult to leave the installation groove 13 from any area.

[0042] Through the above arrangement, the electromagnetic element 12 is limited in the installation groove 13 by the limiting part and is not easy to escape from the installation groove 13 to cause failure, so that the electromagnetic spring 10 is stable in use.

[0043] The structure of the limiting part can be set according to actual conditions, and can realize the limiting effect, for example, can be a band, a clamp and the like surrounding the spring wire 11, which is not limited here.

[0044] In an embodiment, the electromagnetic element 12 is arranged on the outer surface of the spring wire 11 at the corresponding turn of the helical elastic body 1. The electromagnetic element 12 can be directly connected to the outer surface of the spring wire 11 by bonding, welding or one-piece forming and the like. Therefore, it is not necessary to additionally open the installation groove 13 in the helical elastic body 1, and the original structural strength of the helical elastic body 1 can be maximally maintained, so that the helical elastic body 1 is more solid and reliable.

[0045] In an embodiment, the spring wire 11 is hollow. The spring wire 11 includes a first end 111 and a second end 112 opposite to each other. The wire harness 2 is threaded through the spring wire 11 from the first end 111 to the second end 112. The wire harness 2 can be threaded through the spring wire 11 along the center of the spring wire 11. The wire harness 2 is connected to the electromagnet 12 in sequence to form a power supply path. The wire harness 2 can include at least two wires connected to an external power source, and each electromagnet 12 is connected to the at least two wires to form the power supply path.

[0046] Through the above arrangement, the wire harness 2 is directly threaded through the spring wire 11 inside the spring wire 11, and the electromagnet 12 can be directly connected to the wire harness 2 inside the spring wire 11. The connection is simple and is not easily affected by external environment to cause poor contact and other phenomena, and the electromagnetic spring 10 is more stable.

[0047] In another embodiment, the spring wire 11 includes a first end 111 and a second end 112 opposite to each other. Along the spiral winding direction of the spring wire 11, the wire harness 2 extends along the outer periphery of the spring wire 11 from the first end 111 to the second end 112 and is fixed on the outer surface of the spring wire 11. In this way, the spring wire 11 does not need to be hollowed out, and the process is simple.

[0048] Another aspect of the present application provides a vehicle including the electromagnetic spring 10 in any of the above embodiments. The electromagnetic spring 10 in the present embodiment is the electromagnetic spring 10 described in the above embodiments, which will not be described again. In this way, the electromagnetic spring 10 can be flexibly changed to adapt to different requirements for the spring force in different scenarios, which is conducive to improving the comfort and handling performance of the vehicle.

[0049] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can include at least one of the features explicitly or implicitly. All directional indications (such as upper, lower, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0050] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. An electromagnetic spring, characterized by, The electromagnetic spring comprises: a helical elastic body formed by helically winding a spring wire around an axis, the helical elastic body comprising at least two turns; at least one set of two adjacent turns of the helical elastic body is provided with an electromagnetic element, and the electromagnetic elements on the two turns are at least partially overlapped in the projection along the axis; a plurality of wire bundles are arranged along the axis in the helical elastic body, and the electromagnetic elements are connected to at least one of the wire bundles, and the wire bundles are used to adjust the magnetic force of the electromagnetic elements.

2. The electromagnetic spring of claim 1, wherein The spring wire is provided with a plurality of mounting grooves in the region where the electromagnetic elements are located, and the electromagnetic elements are embedded in the corresponding mounting grooves.

3. The electromagnetic spring of claim 2, wherein, The mounting grooves extend along the helical winding direction of the spring wire, the electromagnetic elements are arranged in a helical shape, the lift angle of the electromagnetic elements is the same as the lift angle of the mounting grooves, and the length of the electromagnetic elements is equal to the length of the mounting grooves along the helical winding direction of the spring wire.

4. The electromagnetic spring of claim 2, wherein, The extension length of each mounting groove is equal to half of the length of the turn of the spring wire.

5. The electromagnetic spring of claim 2, wherein, The helical elastic body has a central plane passing through the axis, and each mounting groove is located on the same side of the central plane.

6. The electromagnetic spring of claim 2, wherein, The mounting grooves are through grooves, and the through directions of each mounting groove are the same and parallel to the direction of the axis.

7. The electromagnetic spring of claim 2, wherein, The mounting grooves are provided with limiting portions at the openings, the limiting portions at least partially cover the openings and divide the openings into at least two regions, and the length of each region is less than the length of the electromagnetic element along the helical winding direction of the spring wire.

8. The electromagnetic spring of claim 1, wherein, The electromagnetic elements are arranged on the outer surface of the spring wire at the corresponding turns of the helical elastic body.

9. The electromagnetic spring according to any of claims 1-8, characterized in that, The spring wire is hollow, the spring wire comprises opposite first and second ends, the wire bundle is arranged through the spring wire from the first end to the second end, and the wire bundle is connected to the electromagnetic elements in sequence to form a power supply path.

10. A vehicle characterized by comprising: The electromagnetic spring comprises: a helical elastic body formed by helically winding a spring wire around an axis, the helical elastic body comprising at least two turns; at least one set of two adjacent turns of the helical elastic body is provided with an electromagnetic element, and the electromagnetic elements on the two turns are at least partially overlapped in the projection along the axis; a plurality of wire bundles are arranged along the axis in the helical elastic body, and the electromagnetic elements are connected to at least one of the wire bundles, and the wire bundles are used to adjust the magnetic force of the electromagnetic elements. The spring wire is provided with a plurality of mounting grooves in the region where the electromagnetic elements are located, and the electromagnetic elements are embedded in the corresponding mounting grooves. The mounting grooves extend along the helical winding direction of the spring wire, the electromagnetic elements are arranged in a helical shape, the lift angle of the electromagnetic elements is the same as the lift angle of the mounting grooves, and the length of the electromagnetic elements is equal to the length of the mounting grooves along the helical winding direction of the spring wire. The extension length of each mounting groove is equal to half of the length of the turn of the spring wire. The helical elastic body has a central plane passing through the axis, and each mounting groove is located on the same side of the central plane. The mounting grooves are through grooves, and the through directions of each mounting groove are the same and parallel to the direction of the axis. The mounting grooves are provided with limiting portions at the openings, the limiting portions at least partially cover the openings and divide the openings into at least two regions, and the length of each region is less than the length of the electromagnetic element along the helical winding direction of the spring wire. The electromagnetic elements are arranged on the outer surface of the spring wire at the corresponding turns of the helical elastic body. The spring wire is hollow, the spring wire comprises opposite first and second ends, the wire bundle is arranged through the spring wire from the first end to the second end, and the wire bundle is connected to the electromagnetic elements in sequence to form a power supply path. The electromagnetic spring comprises: a helical elastic body formed by helically winding a spring wire around an axis, the helical elastic body comprising at least two turns; at least one set of two adjacent turns of the helical elastic body is provided with an electromagnetic element, and the electromagnetic elements on the two turns are at least partially overlapped in the projection along the axis; a plurality of wire bundles are arranged along the axis in the helical elastic body, and the electromagnetic elements are connected to at least one of the wire bundles, and the wire bundles are used to adjust the magnetic force of the electromagnetic elements. The spring wire is provided with a plurality of mounting grooves in the region where the electromagnetic elements are located, and the electromagnetic elements are embedded in the corresponding mounting grooves. The mounting grooves extend along the helical winding direction of the spring wire, the electromagnetic elements are arranged in a helical shape, the lift angle of the electromagnetic elements is the same as the lift angle of the mounting grooves, and the length of the electromagnetic elements is equal to the length of the mounting grooves along the helical winding direction of the spring wire. The extension length of each mounting groove is equal to half of the length of the turn of the spring wire. The helical elastic body has a central plane passing through the axis, and each mounting groove is located on the same side of the central plane. The mounting grooves are through grooves, and the through directions of each mounting groove are the same and parallel to the direction of the axis. The mounting grooves are provided with limiting portions at the openings, the limiting portions at least partially cover the openings and divide the openings into at least two regions, and the length of each region is less than the length of the electromagnetic element along the helical winding direction of the spring wire. The electromagnetic elements are arranged on the outer surface of the spring wire at the corresponding turns of the helical elastic body. The spring wire is hollow, the spring wire comprises opposite first and second ends, the wire bundle is arranged through the spring wire from the first end to the second end, and the wire bundle is connected to the electromagnetic elements in sequence to form a power supply path.

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