CN203413015U - Damping shock absorber - Google Patents

Abstract

In order to solve the problem in the prior art that the resistance applied to the rotor is large since a stator and a rotor are arranged in damping fluid, and electric leakage is caused since an enamelled wire is soaked in the damping fluid for a long time and is corroded, the utility model provides a damping shock absorber. A sleeve of the shock absorber is also internally provided with an electricity generating component which comprises a sealed shell, a turbine, a stator and a rotor; the stator is fixedly arranged in the sealed shell; the rotor is rotatablely arranged in the sealed shell; a mandrel of the rotor extends outside the sealed shell; the turbine is fixedly arranged on the mandrel which extends outside the sealed shell. After the scheme that the whole electricity generating component is arranged in the sleeve of the shock absorber after being assembled is adopted, the blockage of an iron medium does not exist between an induction coil and a permanent magnet, so that the generating efficiency is guaranteed. The rotor and the stator are arranged in the sealed shell in a sealing way, and the damping fluid can be effectively isolated outside the sealed shell, so that the rotor and the stator are prevented from being directly arranged in the damping fluid.

Description

a shock absorber

technical field

The utility model relates to the field of damping shock absorbers, in particular to the field of damping shock absorbers capable of recovering the vibration energy thereof.

Background technique

Today's energy crisis and environmental pollution have become increasingly prominent problems. Saving and improving the energy efficiency of automobiles is one of the main research directions of current automobile technology. Automobile energy recovery is a way to improve energy utilization, such as braking energy recovery, using flywheel to recover energy from the engine, shock absorber energy recovery, etc.

Vibration is unavoidable during the running of the car, causing the shock absorber to move. This movement always exists during the running of the car, so the energy generated is huge. Existing shock absorbers that can recover energy are generally based on the following scheme: the piston or piston rod of the shock absorber is equipped with a permanent magnet, an induction coil is wound on the outer wall of the shock absorber sleeve, and when the shock absorber piston or piston rod moves up and down, The permanent magnet on the piston or piston rod moves accordingly, so that the coil cuts the magnetic induction line to generate an induced current, thereby recovering energy. However, the energy recovery effect of this type of shock absorber is not good, because the shock absorber sleeve is made of iron and has good conductivity, it will also cut the magnetic field and generate eddy currents. According to Lenz's law, the eddy currents generated by these eddy currents The magnetic field will weaken the magnetic field of the permanent magnet (that is, the electromagnetic shielding effect), so that there is no magnetic field or the magnetic field is very weak outside the sleeve, and the induced current of the induction coil is very weak or almost no induced current, which cannot achieve the purpose of recovering the vibration energy of the shock absorber.

At present, the following method is also adopted to convert the up and down motion of the piston or piston rod into the rotational motion of the rotor. The rotation of the rotor causes the induction coil to cut the lines of magnetic induction, generating an induced current. For example, a shock absorber that can recover energy has been disclosed, including a ball screw that moves up and down with the bumps and vibrations of the car, a generator, a damping piston assembly that is connected to the bottom of the ball screw and moves up and down with the ball screw, and a fixed Screw guide bushing in the bottom of the shock absorber housing and connected to the bottom of the ball screw. The generator includes a permanent magnet, a stator coil group, a power output interface, and a ball screw nut transmission assembly that rotates around the ball screw as the ball screw moves up and down. The permanent magnet is fixed on the ball screw nut transmission assembly, as The rotor and the stator coil group of the generator are fixedly installed on the inner wall of the shock absorber shell, and are connected to the external electronic controller through the power output interface and wires. The ball screw nut transmission assembly includes a ball nut and a nut sleeve. The internal thread of the nut sleeve cooperates with the external thread in the middle of the ball screw. The nut sleeve rotates around the ball screw as the ball screw moves up and down. The ball nut Both the permanent magnet and the permanent magnet are fixedly installed on the upper part of the nut sleeve, and rotate around the ball screw with the nut sleeve. At the same time, it also includes a turbofan impeller located below the generator and above the damping piston assembly. The turbofan impeller is fixedly installed on the lower part of the nut sleeve and rotates around the ball screw with the nut sleeve. However, this method changes the structure of the shock absorber too much, the structure is complex, and it is not easy to realize, and because the rotor and stator are directly placed in the damping fluid, the resistance of the rotor becomes larger, and the enameled wire is soaked in the damping fluid for a long time and is corroded. Leakage and other issues.

Utility model content

In order to solve the problem that the existing recyclable energy shock absorber directly places the rotor and stator in the damping fluid, which causes the resistance of the rotor to become larger, and the enameled wire is soaked in the damping fluid for a long time and is corroded to cause electric leakage. The utility model provides a A damping shock absorber.

A damping shock absorber, comprising a shock absorber sleeve, a piston rod and a piston; a damping fluid is arranged in the shock absorber sleeve; the piston is arranged in the shock absorber sleeve, and a orifice;

The inner end of the piston rod extends into the shock absorber sleeve and is directly or indirectly connected to the piston, and the outer end of the piston rod extends out of the shock absorber sleeve;

Wherein, a power generation component is also provided in the shock absorber sleeve, and the power generation component includes a sealed casing, a turbine, a stator, and a rotor;

The stator is fixedly installed in the sealed housing, and the rotor is rotatably installed in the sealed housing; the core shaft of the rotor protrudes outside the sealed housing, and the turbine is fixedly installed in the sealed housing. Seal the outside of the housing on the mandrel.

In the technical solution of the utility model, since the induction coil is placed in the shock absorber sleeve, there is no iron medium between the induction coil and the permanent magnet, so that the magnetic field is prevented from being weakened, and the power generation efficiency is ensured. At the same time, due to the adoption of the scheme of assembling the entire power generation assembly and then putting it into the shock absorber sleeve, the rotor and the stator are sealed and installed in the sealed casing, and only the mandrel of the rotor is led out of the sealed casing, which can effectively The damping fluid is isolated from the sealed casing to prevent the rotor and stator from being directly placed in the damping fluid. It can effectively reduce the resistance of the rotor, the rotor rotates more smoothly, the power generation efficiency of the power generation component is higher, and the enameled wire is soaked in the damping liquid for a long time and is corroded to cause leakage. At the same time, the structure of the damping shock absorber provided by the utility model is relatively simple, the manufacturing cost is low, and it has practical application value.

Preferably, the sealing housing is fixed on the piston or the piston rod or the inner wall of the shock absorber sleeve.

Preferably, the number of the turbines is two, the mandrel shafts of the rotor protrude from both ends of the sealed housing respectively, and the two turbines are fixedly installed on the two ends of the sealed housing respectively. both ends of the mandrel. It can make greater use of the linear flow of the damping fluid on both sides of the sealed casing, and the two turbines drive the rotor to rotate at the same time, which is more cost-effective.

Preferably, the piston includes a transverse piston body and a longitudinal side cylindrical surface, the sealing housing is fixed on the piston body, and the mandrel is rotatably connected to the piston rod. In this way, the power generation component is integrated on the piston, and the integration degree is higher.

Preferably, the rotational connection specifically includes setting one end of the piston rod as an expansion part, a stepped hole is provided at the lower end of the expansion part, a bearing is installed in the stepped hole, and the core shaft of the rotor is inserted into the bearing.

Preferably, an annular sealing ring installation groove is provided on the side surrounding cylindrical surface, and a piston sealing ring is installed in the sealing ring installation groove. The piston sealing ring can prevent damping fluid from passing through the gap between the piston and the shock absorber sleeve.

Preferably, a bearing is installed between the core shaft of the rotor and the sealing housing, and the sealing between the core shaft and the sealing housing is realized by a housing sealing ring. The smooth relative rotation between the rotor core shaft and the sealing housing is ensured, and at the same time, the damping fluid is effectively prevented from entering the sealing housing.

Preferably, a permanent magnet is fixedly installed on the rotor in the sealed housing, an induction coil is fixedly installed on the stator in the sealed housing; or an induction coil is fixedly installed on the rotor in the sealed housing. a coil, and a permanent magnet is fixedly installed on the stator inside the sealed casing.

Preferably, it also includes a shock absorber spring and a dust cover, the shock absorber spring is arranged outside the shock absorber sleeve, and the dust cover is arranged outside the shock absorber sleeve and on the exposed part of the piston rod peripheral. The shock-absorbing spring plays the role of mitigating the impact, and when passing through an uneven road surface, it changes "one impact with high energy" into "multiple impacts with small energy", and the dust cover effectively prevents the entry of the dust layer.

Preferably, a one-way valve is provided on the damping hole.

Description of drawings

Figure 1 is an overall schematic diagram of a damping shock absorber provided by an embodiment of the present invention;

Fig. 2 is the overall schematic diagram of the second damping shock absorber provided by the embodiment of the present invention;

Fig. 3 is the overall schematic diagram of the third damping shock absorber provided by the embodiment of the present invention;

Fig. 4 is an overall schematic diagram of the fourth damping shock absorber provided by the embodiment of the present invention;

Fig. 5 is an overall schematic diagram of the fifth damping shock absorber provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of a power generation assembly provided by an embodiment of the present invention;

Fig. 7 is a partial schematic diagram of the power generation component provided on the piston provided by the embodiment of the utility model;

Fig. 8 is an enlarged schematic diagram of the connection between the piston rod and the mandrel of the rotor provided by the embodiment of the present invention;

Fig. 9 is an enlarged schematic diagram of another connection between the piston rod and the rotor mandrel provided by the embodiment of the present invention;

FIG. 10 is a schematic top view of FIG. 9 .

Among them, 1. Damping spring; 2. Piston rod; 3. Piston; 4. Shock absorber sleeve; 5. Power generation component; 6. Dust cover; 21. Upper support; 22. Expansion part; ; 24, thrust bearing; 31, piston body; 32, side wall cylindrical surface; 33, piston sealing ring; 41, lower end support; 50, sealing shell; 51, mandrel; 52, turbine; 53, rotor; 54. Stator; 55. Damping hole; 56. One-way valve; 57. Shell sealing ring; LS, bolt; LK, screw hole.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example

As shown in Figures 1-5, this example provides a damping shock absorber, including a shock absorber sleeve 4, a piston rod 2 and a piston 3; the shock absorber sleeve 4 is provided with a damping fluid; the The piston 3 is arranged in the shock absorber sleeve 4 . As shown in FIG. 7 , the piston 3 is provided with a damping hole 55 . As a preferred manner, a one-way valve 56 may also be provided on the damping hole 55 . The piston 3 divides the inner space of the shock absorber sleeve 4 into two chambers, which are referred to as an upper chamber and a lower chamber for convenience of description. Generally, at least two damping holes 55 are provided, and check valves 56 are arranged on them. In this way, when the piston 3 moves upward relative to the shock absorber sleeve 4, the damping fluid in the lower chamber flows through the damping holes 55 to the upper chamber. When the piston 3 moves downward relative to the shock absorber sleeve 4 , the damping fluid in the upper chamber flows to the lower chamber through the damping hole 55 . In fact, the position of the damping hole is not particularly limited, as long as it can ensure that the damping fluid plays a damping role during the up and down movement of the piston.

Damping fluid generally includes air or damping fluid (oil), and damping shock absorbers can generally be divided into hydraulic shock absorbers and air shock absorbers due to different damping fluids. This example uses hydraulic shock absorbers as an example to illustrate .

As shown in Figures 1-5, generally speaking, the shock absorber spring 1 can be used as a part of the shock absorber, so the damper shock absorber can also include a shock absorber spring 1, and the shock absorber spring 1 is arranged on the shock absorber 4 outside the device sleeve. It is also possible not to use the damping spring 1 as a part of the shock absorber, but only as an element parallel to the shock absorber. Shock-absorbing spring 1 is an elastic element, which plays the role of mitigating impact. When passing through an uneven road surface, it changes "one impact with large energy" into "multiple impacts with small energy", which will cause the spring to rebound after absorbing shocks and cause shocks, while reducing the impact. The vibrator is to gradually reduce the "small energy multiple impacts". Therefore need to install shock absorber in parallel, be used for suppressing the shock when shock-absorbing spring 1 rebounds after absorbing shock and the impact from road surface.

Preferably, generally outside the shock absorber sleeve 4 and the outer periphery of the exposed part where the piston rod 2 protrudes from the shock absorber sleeve, a dust cover 6 can also be provided to effectively prevent the dust layer from entering the shock absorber sleeve. internal role.

Its working principle is that when the frame (or body) and the axle vibrate and there is relative movement, the piston 3 in the shock absorber moves up and down, and the oil in the shock absorber cavity repeatedly passes through different damping levels from one cavity to the other. Hole 55 flows into another chamber. At this time, the friction between the wall of the damping hole 55 and the oil and the internal friction between the oil molecules form a damping force on the vibration, so that the vibration energy of the vehicle is converted into heat energy of the oil, which is then absorbed by the shock absorber and released into the atmosphere. In this way, Play the role of shock absorption.

As shown in Figures 1-5, wherein, the inner end of the piston rod 2 extends into the shock absorber sleeve 4 and is directly or indirectly connected with the piston 3, and the outer end of the piston rod 2 extends out of the shock absorber sleeve 4. Vibrator sleeve 4 outside. The existing piston rod 2 is directly connected to the piston 3, and the outer end of the piston rod 2 and the shock absorber sleeve 4 are respectively connected to the vehicle frame (or vehicle body) and the axle. Generally speaking, the piston rod 2 passes through its upper end support 21 is installed on the vehicle frame, and the shock absorber sleeve 4 is installed on the vehicle axle through its lower end support 41. In this way, the vibration of the vehicle up and down will cause the piston 3 to move up and down relatively in the shock absorber sleeve 4 . The utility model is because the power generating assembly 5 is added in the shock absorber sleeve 4, therefore, the mode of indirect connection may also be possible.

Piston 3, piston rod 2, shock absorber sleeve 4, shock absorbing spring 1, etc. are well known to those skilled in the art, therefore, only a brief description will be made, and the improved content of the present invention will be described in detail below.

As shown in FIGS. 1-5 , a power generating assembly 5 is also arranged inside the shock absorber sleeve 4 . As shown in FIG. 6 , the power generation assembly 5 includes a sealed casing 50 , a turbine 52 , a stator 54 , and a rotor 53 .

The sealing housing 50 can be fixed on the inner wall of the piston 3 or the piston rod 2 or the shock absorber sleeve 4 . The position of the sealed casing 50 is the position of the power generation component 5. The power generation component 5 in this example mainly utilizes the relative motion of the stator 54 and the rotor 53, applies the principle of electromagnetic induction, and generates an induced current by cutting the magnetic field through the induction wire. The rotation of the rotor 53 is driven by the rotation of the turbine 52, and the rotation of the turbine 52 is driven by the flow of damping fluid. Therefore, as long as the damping fluid can flow in the shock absorber sleeve 4, the turbine 52 can be rotated to drive the rotor 53 to rotate, and as long as the damping hole 55 is provided on the piston 3, it can be ensured that the damping fluid will not stop when the vehicle vibrates up and down. It can flow in the shock absorber sleeve 4 , so the location where the sealed housing 50 (or power generation assembly 5 ) is placed is not important, as long as it is placed in the shock absorber sleeve 4 .

As shown in Fig. 2 and Fig. 4, the sealing housing 50 can be fixedly connected to the piston 3. In the figure, the piston rod is provided with an expansion part 22, and the expansion part 22 can be regarded as a piston. At this time, the sealing housing The body 50 (or power generation assembly 5) will move relative to the piston 3 (or piston rod 2) along the axial direction of the shock absorber sleeve 4 in the shock absorber sleeve 4, and the sealing housing 50 and the piston 3 have no relative movement, and the sealing The rotor 53 in the casing 50 will rotate with the turbine 52, that is to say, the turbine 52 and the rotor 53 integrated with it will rotate in the shock absorber sleeve 4 and move up and down along the axial direction of the shock absorber sleeve 4 . The way shown in FIG. 1 is that the core shaft 51 of the rotor 53 is connected with the piston 3 , the rotor 53 will rotate relative to the piston 3 , and at the same time, will follow the piston 3 to move up and down.

As shown in Figures 1 and 3, it can be regarded as a specific way to fix the sealing housing 50 (or power generation assembly) on the piston rod 2. At this time, the expansion part 22 on the piston rod may not be regarded as a piston . This method can be regarded as integrating the power generation assembly 5 on the piston 3, and connecting the piston and the power generation assembly to the piston rod as a whole. Specifically as shown in Figure 7, the piston 3 includes a transverse piston body 31 and a longitudinal side cylindrical surface 32, the damping hole 55 is arranged on the piston body 31, and the sealing housing 50 is fixed on the piston body 31 on. At the same time, an annular sealing ring installation groove is provided on the side surrounding cylindrical surface 32, and a piston sealing ring 33 is installed in the sealing ring installation groove, and the piston sealing ring 33 can prevent the damping fluid from flowing from the piston 3 to the shock absorber. The gap between the sleeves 4 passes through. The turbine 52 is fixedly mounted on the mandrel 51 protruding from the sealing housing 50 . The mandrel 51 of the rotor 53 is rotatably connected with the piston rod 2 . This way can be regarded as an indirect connection between the piston 3 and the piston rod 2 , that is, the piston rod 2 is connected to the piston 3 through the core shaft 51 of the rotor 53 . In this way, the power generation component 5 is integrated on the piston 3, and its integration degree is higher. There is no relative movement between the sealing housing 50 and the piston rod 2. At this time, the sealing housing 50 (or the power generation assembly 5) will move relative to the axial direction of the shock absorber sleeve 4 along with the piston rod 2 in the shock absorber sleeve 4. Likewise, the turbine 52 and the rotor 53 integral with it will perform rotational movement and axial up-and-down movement in the shock absorber sleeve 4 . At this time, the mandrel 51 of the rotor 53 protrudes out of the sealing housing 50 and is respectively connected in rotation with the piston rod 2 and the piston 3 . And the turbine 52 is fixedly installed on the mandrel 51 extending out of the sealing housing 50 .

As shown in Figure 5, the sealing housing 50 (or the power generation assembly 5) can also be fixed on the inner wall of the shock absorber sleeve 4, and there is an edge along the shock absorber sleeve between the sealing housing 50, the piston 3 and the piston rod 2. In this way, the piston 3 and the piston rod 2 are connected, and the piston 3 and the piston rod 2 will move relative to the shock absorber sleeve 4 along the axial direction of the shock absorber sleeve 4, and the sealing The casing 50 (or the power generation assembly 5) will not move with the piston rod 2 or the piston 3. When the piston 3 moves in the shock absorber sleeve 4, it will drive the damping fluid to flow between the upper chamber and the lower chamber, and the damping fluid will flow between the upper chamber and the lower chamber. The flow of the fluid drives the rotation of the turbine 52, and the rotation of the turbine 52 makes the rotor 53 integrated with it rotate. If there is no gap at all between the sealing housing 50 and the shock absorber sleeve 4, as a preferred method, flow holes can also be provided on the sealing housing 50, allowing the damping fluid on both sides of the sealing housing 50 to flow from the sealing housing 50 The flow hole can be used as a damping hole, but the setting of the damping hole cannot introduce the damping fluid into the sealed housing 50 . If there is a gap between the sealing housing 50 and the shock absorber sleeve 4, and the gap is sufficient to allow the damping fluid between the upper and lower chambers of the sealing housing 50 to flow unimpeded, it is not necessary to provide an overflow hole.

In this way, it can be seen that the power generation assembly 5 does not necessarily need to be connected with the piston rod 2 or the piston 3, as long as it is placed in the shock absorber sleeve 4, the damping fluid can drive the turbine 52 to rotate, and the turbine 52 can make the turbine 52 integrated with it rotate. The rotor 53 only needs to rotate.

As shown in Figures 6 and 7, the power generation assembly 5 is described in detail. The sealed housing 50 is in the shape of a hollow cylinder, and a stator 54 and a rotor 53 are housed in it. The mandrel 51 and the piston rod 2 Turn to connect. The stator 54 is fixedly installed in the sealed housing 50, and the rotor 53 is rotatably installed in the sealed housing 50; the mandrel 51 of the rotor 53 extends out of the sealed housing 50, The turbine 52 is fixedly mounted on the mandrel 51 protruding from the sealing housing 50 . The so-called rotational connection in this example means that two connected parts are connected to each other, and at the same time, relative rotation can be realized between the two. On the basis of understanding the principle of relative rotation, those skilled in the art can easily know how to implement, such as installing bearings at the connection. Figures 1 to 4 will already provide two simple implementation modes, which are sufficient to illustrate this. Because the rotor 53 can also rotate relative to the sealed housing 50, and at the same time, the connection between the rotor 53 and the sealed housing 50 needs to prevent the damping fluid from entering the sealed housing 50, therefore, the core shaft 51 of the rotor 53 and the sealed housing 50 Bearings also need to be installed between the sealing housings 50 , and the sealing between the mandrel 51 and the sealing housing 50 is realized through a housing sealing ring 57 . In this way, the bearing ensures smooth relative rotation between the mandrel 51 of the rotor 53 and the sealed housing 50 , and at the same time, the housing sealing ring 57 can effectively prevent the damping fluid from entering the sealed housing 50 .

The number of the turbine 52 is not limited, as long as it can drive the rotor 53 to rotate, preferably, the number of the turbine 52 is two, and the mandrel 51 of the rotor 53 is separated from the sealed housing 50 respectively. The two ends of the two turbines 52 are respectively fixedly mounted on the two ends of the mandrel 51 protruding from the sealed housing 50 . Two turbines are installed, which can make greater use of the linear flow of the damping fluid on both sides of the sealed housing 50, and the two turbines 52 drive the rotor 53 to rotate at the same time. It is also possible to set more than two turbines 52, but the necessity is low. Set 2 The price/performance ratio of a turbo 52 is better. The turbine 52 is installed on the mandrel 51 protruding from the sealed housing 50 , which means it is immersed in the damping fluid, so it can be subjected to the force of the damping fluid to convert the linear flow of the damping fluid into the rotation of the turbine 52 .

The rotor 53 must be able to rotate. If the mandrel 51 of the rotor 53 is installed on the various parts (such as the piston rod 2 and the piston 3) in the shock absorber sleeve 4, it needs to be relatively rotatable with the connected parts. There are many ways to achieve relative rotation. Take the rotational connection between the mandrel 51 and the piston rod 2 as an example. Expansion part 22 (this expansion part 22 can also be regarded as piston 3), is provided with a support 23 in addition, is provided with screw hole LK and damping hole 55 on this expansion part 22 and support 23 respectively, realizes expansion part 22 and support by bolt LS 23, at the same time, the mounting hole of the mandrel 51 is set in the bracket 23, the mandrel 51 can be loaded into the mounting hole, and its end is fixed in the accommodation space between the bracket 23 and the expansion part 22 , at the same time, allow the mandrel 51 to rotate in the mounting hole, as a preferred mode, it is best to install a bearing on the bracket 23, so that the rotation of the mandrel 51 is more convenient. The damping hole 55 and the screw hole LK can be arranged as shown in Figure 10, that is, some of the holes shown in Figure 10 can be used as the damping hole 55, and some of the holes can be used as the screw hole LK, and the number of the damping hole 55 and the screw hole LK unlimited.

As another embodiment, please refer to Fig. 1 and Fig. 2, and understand it in combination with the enlarged schematic diagram in Fig. 8, one end of the piston rod 2 can also be set as an expansion part 22, and the lower end of the expansion part 22 is provided with a stepped hole, the stepped hole Bearings are installed inside, such as the thrust bearing 24, and the mandrel 51 of the rotor 53 is loaded into the thrust bearing 24, so that the rotational connection between the piston rod 2 and the mandrel 51 is realized. If the mandrel 51 is to be connected in rotation with the piston 3, the principle is the same, as long as a bearing is installed between the two, it can be realized. Of course, it is not necessary to set the expansion part 22 in the same way as in Fig. 8-Fig. 51 can be loaded into the shaft hole by the bearing. Alternatively, if the diameter of the mandrel 51 is sufficient, a shaft hole can also be provided on the mandrel 51 , and the piston rod 2 is assembled into the shaft hole, so that the mandrel 51 can also rotate on the piston rod 2 . All in all, there are many ways to make the mandrel 51 and the piston rod 2 rotate relatively, which cannot be exhaustively listed in the embodiment of the utility model. The above-mentioned explanations are enough to guide those skilled in the art without having to pay creative work. Realize the rotational connection between the piston rod 2 and the mandrel 51 or between the piston 3 and the mandrel 51 under the circumstances.

The turbine 52 is a rotating power component that converts the energy of the flowing working medium into mechanical work. The structure of the turbine 52 in this example is not particularly limited, as long as the linear motion of the damping fluid can be converted into the rotational motion of the turbine 52 , no further description will be given.

The most important function of the rotor 53 and the stator 54 is to realize the relative motion between the permanent magnet and the induction coil, so as to achieve the purpose of the induction coil cutting the magnetic induction line to generate the induced current. Therefore, the rotor 53 and the stator 54 must be installed with magnets and induction coils respectively. coil. That is, permanent magnets can be fixedly installed on the rotor 53 in the sealed casing, and the induction coil is fixedly installed on the stator 54 in the sealed casing; or the induction coil can be fixedly installed on the rotor 53 in the sealed casing, so Describe the manner in which the permanent magnets are fixedly installed on the stator 54 in the sealed housing.

Installing the permanent magnet on the rotor 53 and installing the induction coil on the stator 54 is relatively simple, as long as the positive and negative terminals of the induction coil are led out of the sealed casing 50 . If the induction coil is installed on the rotor 53 and the permanent magnet is installed on the stator 54, the problem of leading out the positive and negative ends of the induction coil should be considered, which is also very simple. The generator generally adopts a combination of brushes and slip rings. In this example, the same method can be used, and those skilled in the art can realize it without any creative work, and will not repeat it here.

Due to the vertical vibration of the vehicle, the piston 3 moves up and down in the shock absorber sleeve 4, so that the damping fluid in it passes through the damping hole 55 on the piston 3 and reciprocates between the upper chamber and the lower chamber separated by the piston 3. Flow, the flow of the damping fluid pushes the turbine 52 to rotate, and the turbine 52 drives the rotor 53 to rotate, and the permanent magnet or induction coil on the rotor 53 performs high-speed rotation (the stator 54 corresponds to the induction coil or permanent magnet). In this way, the up and down movement in the vertical direction is converted into rotational movement, which drives the permanent magnet or induction coil on the rotor 53 to rotate, and the induction coil cuts the lines of magnetic force to generate an induced current. In this way, the process of converting vibration energy into electrical energy is realized. It also includes a rectifier, the input end of the rectifier is electrically connected to the two ends of the induction coil, and the output end is electrically connected to the storage battery. It is used to rectify the alternating current generated by the power generating assembly 5 into direct current, so as to be stored in the storage battery. In this way, the vertical vibration of the piston 3 causes the turbine 52 to move forward and backward, so that the coil generates alternating current, which is rectified by the rectifier to become direct current, which is stored in the on-board battery, thereby recovering the energy of the shock absorber. When the electric energy is stored in the battery, the characteristics of the negative pole of the vehicle battery can be utilized, so it is not necessary to use a wire to connect to the negative pole of the battery.

The damping shock absorber in this embodiment converts the vibration energy into electrical energy without changing the shock absorbing performance of the original shock absorber.

Since the damping shock absorber of the embodiment of the utility model places the induction coil in the shock absorber sleeve 4, there is no obstacle of ferrous medium between the induction coil and the permanent magnet, so the magnetic field can be avoided from being weakened, and the power generation efficiency can be ensured. At the same time, due to the adoption of the scheme of assembling the entire power generation assembly 5 and then putting it into the shock absorber sleeve 4, the rotor 53 and the stator 54 are hermetically installed in the sealed housing 50, and only the mandrel 51 of the rotor 53 Leading out of the sealed casing 50 can effectively isolate the damping fluid from the sealed casing 50 and prevent the rotor 53 and the stator 54 from being directly placed in the damping fluid. It can effectively reduce the resistance suffered by the rotor, the rotor rotates more smoothly, and the power generation efficiency of the power generation component 5 is higher, while avoiding the enameled wire (that is, the induction wire wound on the rotor or stator, the induction wire is a copper wire wrapped with a paint layer) Enameled wire) soaked in the damping fluid for a long time is corroded and causes leakage. The damping shock absorber provided by the utility model can be designed based on the current vehicle shock absorber, has relatively simple structure, low cost and has practical application value.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A damping shock absorber, characterized in that, comprises a shock absorber sleeve, a piston rod and a piston; A damping fluid is arranged in the shock absorber sleeve; the piston is arranged in the shock absorber sleeve, and a damping hole is arranged on it; The inner end of the piston rod extends into the shock absorber sleeve and is directly or indirectly connected to the piston, and the outer end of the piston rod extends out of the shock absorber sleeve; Wherein, a power generation component is also provided in the shock absorber sleeve, and the power generation component includes a sealed casing, a turbine, a stator, and a rotor; The stator is fixedly installed in the sealed housing, and the rotor is rotatably installed in the sealed housing; the core shaft of the rotor protrudes outside the sealed housing, and the turbine is fixedly installed in the sealed housing. Seal the outside of the housing on the mandrel. 2 . The damping shock absorber according to claim 1 , wherein the sealing housing is fixed on the inner wall of the piston or the piston rod or the shock absorber sleeve. 3. The damping shock absorber according to claim 2, characterized in that, the number of the turbines is two, and the mandrels of the rotor protrude from both ends of the sealed housing respectively, and the two Two turbines are respectively fixedly installed on the two ends of the mandrel protruding from the sealed housing. 4. The damping shock absorber according to claim 3, wherein the piston comprises a transverse piston body and a longitudinal side cylindrical surface, the sealing housing is fixed on the piston body, and the damping A hole is provided on the piston body, and the mandrel is rotatably connected with the piston rod. 5. The damping shock absorber according to claim 4, characterized in that, the rotational connection is specifically setting one end of the piston rod as an expansion part, the lower end of the expansion part is provided with a stepped hole, and the inside of the stepped hole is Bearings are mounted, into which the mandrel of the rotor fits. 6 . The damping shock absorber according to claim 4 , wherein an annular seal ring installation groove is provided on the side wall cylindrical surface, and a piston seal ring is installed in the seal ring installation groove. 7 . 7. The damping shock absorber according to any one of claims 1-6, characterized in that, a bearing is installed between the core shaft of the rotor and the sealing housing, and is sealed by a housing A ring achieves a seal between the mandrel and the seal housing. 8. The damping shock absorber according to any one of claims 1-6, wherein permanent magnets are fixedly installed on the rotor in the sealed housing, and permanent magnets are fixed on the stator in the sealed housing. An induction coil is fixedly installed; or an induction coil is fixedly installed on the rotor in the sealed housing, and a permanent magnet is fixedly installed on the stator in the sealed housing. 9. The damping shock absorber according to any one of claims 1-6, further comprising a shock absorbing spring and a dust cover, the shock absorbing spring being arranged outside the shock absorber sleeve, The dust cover is arranged outside the shock absorber sleeve and the periphery of the exposed part of the piston rod. 10. The damping shock absorber according to any one of claims 1-6, characterized in that a one-way valve is provided on the damping hole.

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