Energy recovery shock absorber capable of automatically adjusting resistance based on working state

Abstract

The utility model discloses an energy recovery shock absorber capable of automatically adjusting resistance based on a working state, which comprises a main body shell, the energy recovery assembly comprises a direct-current generator connected outside the main body shell, and the direct-current generator is connected with a power shaft; the transmission assembly comprises a rack which is connected to the main body shell in a sliding mode and does reciprocating rectilinear motion in the height direction, a one-way bearing is connected to the power shaft, and the power shaft is connected with a transmission gear matched with the rack through the one-way bearing; the resistance adjusting assembly comprises a three-pin three-gear switch connected to the main body shell, the three-pin three-gear switch comprises a switch main body, the outer end of the switch main body is connected with a first binding post, a second binding post and a third binding post, the first binding post is normally connected with the negative electrode of the direct-current generator, and the second binding post is normally connected with the negative electrode of the direct-current generator; one end, extending into the main body shell, of the switch main body is rotationally connected with a switch knob for regulating on-off of the second binding post or the third binding post; according to the utility model, the resistance value of the resistor connected to the generator can be automatically adjusted according to the stroke state change of the shock absorber.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy recovery, in particular to an energy recovery shock absorber which automatically adjusts resistance based on working state. Background Art

[0002] Shock absorbers are important components of automobiles, and they play a very important role in alleviating vehicle vibrations and improving vehicle ride smoothness and handling stability. Traditional oil-type shock absorbers directly convert the energy generated by vibration into heat consumption. Electromagnetic shock absorbers, on the other hand, can convert vibration energy into electrical energy for recycling, thus improving energy efficiency.

[0003] In the prior art, there is disclosed a paper entitled “A high-efficiency energy regenerative shock absorber using supercapacitors for renewable energy applications in range extended electric vehicle”, which was published in the journal Applied Energy, Vol. 178, 2016, pages 177-188. The paper proposes an electromagnetic shock absorber using a mechanical rectifier. The shock absorber uses two one-way bearings to limit the rotation direction of the generator, so that the generator will only rotate in one direction when the shock absorber is working, thereby improving the power generation efficiency. However, this design makes it impossible to control the external load resistance through the diode, and it is impossible to have different damping coefficients in the recovery and compression strokes, which affects the vibration reduction performance. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the existing energy recovery shock absorber, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an energy recovery shock absorber that automatically adjusts resistance based on the working state, which can automatically adjust the resistance value connected to the generator according to the change of the stroke state of the shock absorber, and provide shock absorption performance and energy recovery performance that are more suitable for the working conditions of the shock absorber.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an energy recovery shock absorber that automatically adjusts resistance based on working status, comprising:

[0008] Main body shell;

[0009] The energy recovery component includes a DC generator connected to the outer end of the main body shell, and the DC generator is connected to a power shaft rotatably connected to the main body shell;

[0010] The transmission assembly includes a rack which is slidably connected to the main body shell and can perform reciprocating linear motion in the height direction, the power shaft is connected to a one-way bearing, and the power shaft is connected to a transmission gear which cooperates with the rack through the one-way bearing;

[0011] The resistance adjustment component includes a three-pin three-position switch connected to a main body shell, wherein the three-pin three-position switch includes a switch body, wherein the outer end of the switch body is connected to a first terminal, a second terminal and a third terminal, wherein the first terminal is often connected to the negative pole of a DC generator, and an end of the switch body extending into the main body shell is rotatably connected to a switch knob for regulating the on / off of the second terminal or the third terminal.

[0012] The second terminal and the third terminal are respectively connected to the positive pole of the DC generator through different resistors; when in the extension stroke, the rack moves upward, the rack drives the transmission gear to rotate, the one-way bearing is engaged, the transmission gear power is transmitted to the power shaft through the one-way bearing, the power shaft rotates the generator to generate electricity, and the electromagnetic damping force generated by the magnet inside the generator cutting the magnetic field is transmitted back to the rack through the transmission gear, effectively improving the damping force under the extension stroke to quickly reduce vibration; when in the compression stroke, the rack moves downward, the one-way bearing is in a separated state, the transmission gear power is not transmitted to the generator through the one-way bearing, the power shaft of the generator rotates independently due to inertia to generate electricity, the electromagnetic damping force generated by the magnet inside the generator cutting the magnetic field is not transmitted back to the rack through the transmission gear, thereby alleviating the impact caused by external excitation.

[0013] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, wherein: the second terminal is electrically connected to a resistor R 分离 , resistor R 分离 The end away from the second terminal is connected to the positive pole of the DC generator, and the third terminal is electrically connected to a resistor R 结合 , resistor R 结合 The end away from the third terminal is connected to the positive pole of the DC generator; when the second terminal is powered on, the third terminal is powered off, and the resistance connected to the DC generator is R 分离 When the third terminal is powered on, the second terminal is powered off, and the resistance connected to the DC generator is R 结合 By adjusting the on / off of the second terminal or the third terminal, the resistance value of the connected DC generator is switched.

[0014] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, when the lower end of the switch knob is pressed and the upper end of the switch knob is retracted, the third terminal is energized; when the lower end of the switch knob is retracted and the upper end of the switch knob is pressed, the second terminal is energized.

[0015] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, wherein: the left and right ends of the rack are respectively fixedly connected with a vertically arranged first toggle plate and a second toggle plate, a plurality of first one-way teeth are arranged on the first toggle plate, and a plurality of second one-way teeth are arranged on the second toggle plate, and the directions of the first one-way teeth and the second one-way teeth are opposite.

[0016] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, when the rack moves upward, the lower end of the switch knob is pressed down and the upper end of the switch knob is retracted; when the rack moves downward, the lower end of the switch knob is retracted and the upper end of the switch knob is pressed down.

[0017] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, wherein: the upper end of the switch knob is connected to a first connecting column, and a first paddle that can be inserted into the first one-way tooth is rotatably connected to the first connecting column, and a first limit step for limiting the upward rotation of the first paddle is provided on the first connecting column; the lower end of the switch knob is connected to a second connecting column, and a second paddle that can be inserted into the second one-way tooth is rotatably connected to the second connecting column, and a second limit step for limiting the downward rotation of the second paddle is provided on the second connecting column, and the rack moves downward. When the second one-way tooth drives the second paddle to rotate downward; assuming that the shock absorber has just been installed, the upper end of the switch knob is pressed, and the second terminal is energized at this time, that is, the first paddle is inserted into the first one-way tooth. When it is in the extension stroke, the rack drives the first one-way tooth to move upward, and the first one-way tooth pushes the first paddle to rotate upward, but the first paddle cannot rotate by itself under the action of the first limit step. The first paddle is retracted against the upper end of the switch rotation through the first limit step, and the lower end of the switch knob rotates toward the direction of the second one-way tooth. The second paddle is inserted into the second one-way tooth, and the third terminal is energized. The resistor R 结合 Connect to the DC generator; when in the compression stroke, the rack drives the second one-way tooth to move downward, the second one-way tooth pushes the second paddle to rotate downward, the second paddle contacts the second limit step and rotates upward against the switch through the second connecting column, the upper end of the switch knob is pressed, the second terminal is energized, and the resistor R 分离 By connecting to a DC generator, the function of changing the resistance value of the connected circuit according to the direction of rack movement during operation is further realized, so that the energy feedback shock absorber has richer damping characteristics and energy recovery characteristics.

[0018] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, wherein: the first connecting column is connected to a first return spring, and the first return spring is connected to the first paddle at one end away from the first connecting column, and the second connecting column is connected to a second return spring, and the second return spring is connected to the second paddle at one end away from the second connecting column; when in the extension stroke, since the second one-way tooth is a one-way tooth, the second one-way tooth continuously paddles the second paddle, the switch state remains unchanged, and the second return spring prevents the second paddle from excessive movement; when in the compression stroke, since the first one-way tooth is a one-way tooth, the first one-way tooth continuously paddles the first paddle, the switch state remains unchanged, and the first return spring prevents the first paddle from excessive movement.

[0019] As a preferred solution of the energy recovery shock absorber of the utility model that automatically adjusts the resistance based on the working state, wherein: the outer end of the first connecting column is threadedly connected with a first screw sleeve, and the first screw sleeve abuts against the outer side of the first paddle; the outer end of the second connecting column is threadedly connected with a second screw sleeve, and the second screw sleeve abuts against the outer side of the second paddle; the first screw sleeve and the second screw sleeve respectively limit the axial movement of the first paddle and the second paddle, thereby improving the reliability of the connecting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0022] Figure 2 The three-dimensional structure of the main body shell of the utility model when it is set to a transparent state Figure 1 .

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0024] Figure 4 The three-dimensional structure of the main body shell of the utility model when it is set to a transparent state Figure 2 .

[0025] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0026] Figure 6 It is a three-dimensional structural diagram of the first toggle plate and the second toggle plate in the utility model when they are connected to both sides of the rack.

[0027] Figure 7 For the utility model and the resistor R 结合 , resistor R 分离 Schematic diagram of electrical connection.

[0028] In the figure, 100 is a main housing, 200 is a transmission component, 201 is a rack, 202 is a transmission gear, 203 is a one-way bearing, 300 is a resistance adjustment component, 301 is a first screw sleeve, 302 is a first paddle, 303 is a first return spring, 304 is a first connecting column, 304a is a first limit step, 305 is a three-pin three-speed switch, 305a is a switch knob, 305b is a switch body, 305c is a second terminal, 305d is a first terminal, 305e is a third terminal, 306 is a first toggle plate, 306a is a first one-way tooth, 307 is a second toggle plate, 307a is a second one-way tooth, 308 is a second paddle, 309 is a second connecting column, 309a is a second limit step, 310 is a second screw sleeve, 311 is a second return spring, 400 is an energy recovery component, 401 is a power shaft, and 402 is a DC generator. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figure 1 to Figure 3 , which is the first embodiment of the utility model, provides an energy recovery shock absorber that automatically adjusts resistance based on working status. Its structure is simple and reliable, and it can achieve both power generation and vibration reduction.

[0034] An energy recovery shock absorber that automatically adjusts resistance based on working status includes a main housing 100, to which is connected an energy recovery component 400 for recovering electric energy, the energy recovery component 400 includes a DC generator 402 connected to the outer end of the main housing 100, to which is connected a power shaft 401 rotatably connected to the main housing 100; the main housing 100 is also provided with a transmission component 200 for transmitting power to the power shaft 401 and a resistance adjustment component 300 for switching different resistances connected to the DC generator 402.

[0035] Furthermore, the transmission assembly 200 includes a rack 201 which is slidably connected to the main housing 100 and can perform reciprocating linear motion in the height direction, a one-way bearing 203 is connected to the power shaft 401, and the power shaft 401 is connected to a transmission gear 202 which cooperates with the rack 201 via the one-way bearing 203; the resistance adjustment assembly 300 includes a three-pin three-speed switch 305 connected to the main housing 100, the three-pin three-speed switch 305 includes a switch body 305b, the outer end of the switch body 305b is connected to a first terminal 305d, a second terminal 305c and a third terminal 305e, the first terminal 305d is often connected to the negative pole of the DC generator 402, and one end of the switch body 305b extending into the main housing 100 is rotatably connected to the second terminal 305c or The third terminal 305e is an on-off switch knob 305a, and the second terminal 305c is electrically connected to a resistor R separation, and the end of the resistor R separation away from the second terminal 305c is connected to the positive electrode of the DC generator 402, and the third terminal 305e is electrically connected to a resistor R combination, and the end of the resistor R combination away from the third terminal 305e is connected to the positive electrode of the DC generator 402; when the second terminal 305c is powered on, the third terminal 305e is powered off, and the resistor connected to the DC generator 402 is R separation, and when the third terminal 305e is powered on, the second terminal 305c is powered off, and the resistor connected to the DC generator 402 is R combination, and the resistance value connected to the DC generator 402 is switched by regulating the on and off of the second terminal 305c or the third terminal 305e.

[0036] When in the extension stroke, the rack 201 moves upward, the rack 201 drives the transmission gear 202 to rotate, the one-way bearing 203 is engaged, the power of the transmission gear 202 is transmitted to the power shaft 401 through the one-way bearing 203, and the power shaft 401 rotates the generator to generate electricity. At this time, the third terminal 305e is energized, and the resistor R is connected to the circuit of the DC generator 402 to connect. The electromagnetic damping force generated by the internal magnet of the generator cutting the magnetic field is transmitted back to the rack 201 through the transmission gear 202, effectively improving the damping force under the extension stroke for rapid vibration reduction; when in the compression stroke, that is, the rack 201 moves downward, the one-way bearing 203 is in a separated state, the power of the transmission gear 202 is not transmitted to the generator through the one-way bearing 203, and the power shaft 401 of the generator rotates independently due to inertia to generate electricity. At this time, the second terminal 305c is energized, and the resistor R is connected to the circuit of the linear generator to separate. The electromagnetic damping force generated by the internal magnet of the generator cutting the magnetic field is not transmitted back to the rack 201 through the transmission gear 202, thereby alleviating the impact caused by external excitation.

[0037] Example 2

[0038] Reference Figure 4 and Figure 5 , which is the second embodiment of the utility model. This embodiment is different from the previous embodiment in that it can further realize the switching of the resistance connected to the DC motor during the extension or compression stroke.

[0039] Specifically, when the lower end of the switch knob 305a is pressed and the upper end of the switch knob 305a is retracted, the third terminal 305e is energized; when the lower end of the switch knob 305a is retracted and the upper end of the switch knob 305a is pressed, the second terminal 305c is energized; when the rack 201 moves upward, the lower end of the switch knob 305a is pressed and the upper end of the switch knob 305a is retracted; when the rack 201 moves downward, the lower end of the switch knob 305a is retracted and the upper end of the switch knob 305a is pressed.

[0040] Specifically, the left and right ends of the rack 201 are respectively fixedly connected with a vertically arranged first toggle plate 306 and a second toggle plate 307, a plurality of first one-way teeth 306a are arranged on the first toggle plate 306, a plurality of second one-way teeth 307a are arranged on the second toggle plate 307, the first one-way teeth 306a and the second one-way teeth 307a are arranged in opposite directions, the upper end of the switch knob 305a is connected with a first connecting column 304, a first paddle 302 which can be inserted into the first one-way teeth 306a is rotatably connected to the first connecting column 304, a first limit step 304a which limits the first paddle 302 to rotate upward is provided on the first connecting column 304, a second connecting column 309 is connected to the lower end of the switch knob 305a, and the second connecting column The second paddle 308 which can be inserted into the second one-way tooth 307a is rotatably connected to the second connecting column 309, and the second limit step 309a which limits the second paddle 308 to rotate downward is provided on the second connecting column 309. When the rack 201 moves downward, the second one-way tooth 307a drives the second paddle 308 to rotate downward. The outer end of the first connecting column 304 is threadedly connected to the first screw sleeve 301, and the first screw sleeve 301 abuts against the outer side of the first paddle 302. The outer end of the second connecting column 309 is threadedly connected to the second screw sleeve 310, and the second screw sleeve 310 abuts against the outer side of the second paddle 308. The first screw sleeve 301 and the second screw sleeve 310 respectively limit the axial movement of the first paddle 302 and the second paddle 308, thereby improving the reliability of the connecting structure.

[0041] Assuming that the shock absorber is just installed, the upper end of the switch knob 305a is pressed, that is, the first paddle 302 is inserted into the first one-way tooth 306a. At this time, the second terminal 305c is energized. When it is in the extension stroke, the rack 201 drives the first one-way tooth 306a to move upward, and the first one-way tooth 306a rotates upward against the first paddle 302, but the first paddle 302 cannot rotate by itself due to the first limit step 304a. The first paddle 302 is retracted against the upper end of the switch rotation through the first limit step 304a, and the lower end of the switch knob 305a rotates toward the direction of the second one-way tooth 307a. The second paddle 308 is inserted into the second one-way tooth 307a, and the first paddle 302 is rotated. The three-terminal 305e is energized, and the resistor R is connected to the DC generator 402; when in the compression stroke, the rack 201 drives the second one-way tooth 307a to move downward, and the second one-way tooth 307a pushes the second paddle 308 to rotate downward, and the second paddle 308 abuts against the second limit step 309a and rotates upward against the switch through the second connecting column 309, and the upper end of the switch knob 305a is pressed down, the second terminal 305c is energized, and the resistor R is separated and connected to the DC generator 402, further realizing the function of changing the resistance value of the connected circuit according to the movement direction of the rack 201 during work, so that the energy feedback shock absorber has richer damping characteristics and energy recovery characteristics.

[0042] Specifically, the first connecting column 304 is connected to a first return spring 303 , and one end of the first return spring 303 away from the first connecting column 304 is connected to the first paddle 302 . The second connecting column 309 is connected to a second return spring 311 , and one end of the second return spring 311 away from the second connecting column 309 is connected to the second paddle 308 .

[0043] When in the extension stroke, since the second one-way tooth 307a is a one-way tooth, the second one-way tooth 307a continuously moves the second paddle 308, the switch state remains unchanged, and the second return spring 311 prevents the second paddle 308 from excessive movement; when in the compression stroke, since the first one-way tooth 306a is a one-way tooth, the first one-way tooth 306a continuously moves the first paddle 302, the switch state remains unchanged, and the first return spring 303 prevents the first paddle 302 from excessive movement.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. The front-to-back direction described in this application refers to the direction perpendicular to the paper plane and parallel to the front-to-back direction with reference to the main view. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An energy recovery shock absorber that automatically adjusts resistance based on working conditions, characterized in that: It includes, Main body shell (100); The energy recovery component (400) comprises a DC generator (402) connected to the outer end of the main housing (100), and the DC generator (402) is connected to a power shaft (401) rotatably connected to the main housing (100); The transmission assembly (200) comprises a rack (201) which is slidably connected to the main housing (100) and can perform reciprocating linear motion in the height direction; the power shaft (401) is connected to a one-way bearing (203); the power shaft (401) is connected to a transmission gear (202) which cooperates with the rack (201) via the one-way bearing (203); The resistance adjustment component (300) comprises a three-pin three-position switch (305) connected to a main housing (100), wherein the three-pin three-position switch (305) comprises a switch body (305b), wherein the outer end of the switch body (305b) is connected to a first terminal (305d), a second terminal (305c) and a third terminal (305e), wherein the first terminal (305d) is normally connected to the negative pole of a DC generator (402), and one end of the switch body (305b) extending into the main housing (100) is rotatably connected to a switch knob (305a) for regulating the on / off of the second terminal (305c) or the third terminal (305e).

2. The energy recovery shock absorber capable of automatically adjusting resistance based on working state according to claim 1, characterized in that: The second terminal (305c) is electrically connected to a resistor R separation, and one end of the resistor R separation away from the second terminal (305c) is connected to the positive electrode of the DC generator (402). The third terminal (305e) is electrically connected to a resistor R combination, and one end of the resistor R combination away from the third terminal (305e) is connected to the positive electrode of the DC generator (402).

3. The energy recovery shock absorber capable of automatically adjusting resistance based on working state according to claim 1, characterized in that: When the lower end of the switch knob (305a) is pressed and the upper end of the switch knob (305a) is retracted, the third terminal (305e) is energized; when the lower end of the switch knob (305a) is retracted and the upper end of the switch knob (305a) is pressed, the second terminal (305c) is energized.

4. The energy recovery shock absorber capable of automatically adjusting resistance based on working state as claimed in claim 3, characterized in that: The left and right ends of the rack (201) are respectively fixedly connected to a first toggle plate (306) and a second toggle plate (307) which are vertically arranged; a plurality of first one-way teeth (306a) are arranged on the first toggle plate (306); a plurality of second one-way teeth (307a) are arranged on the second toggle plate (307); and the directions of the first one-way teeth (306a) and the second one-way teeth (307a) are opposite.

5. The energy recovery shock absorber capable of automatically adjusting resistance based on working state as claimed in claim 4, characterized in that: When the rack (201) moves upward, the lower end of the switch knob (305a) is pressed down and the upper end of the switch knob (305a) is retracted; when the rack (201) moves downward, the lower end of the switch knob (305a) is retracted and the upper end of the switch knob (305a) is pressed down.

6. The energy recovery shock absorber capable of automatically adjusting resistance based on working state as claimed in claim 5, characterized in that: The upper end of the switch knob (305a) is connected to a first connecting column (304), and a first paddle (302) capable of being inserted into a first one-way tooth (306a) is rotatably connected to the first connecting column (304), and a first limiting step (304a) for limiting the first paddle (302) from rotating upward is provided on the first connecting column (304), and a second connecting column (309) is rotatably connected to a second paddle (308) capable of being inserted into a second one-way tooth (307a) is provided on the second connecting column (309) for limiting the second paddle (308) from rotating downward is provided on the second connecting column (309), and when the rack (201) moves downward, the second one-way tooth (307a) drives the second paddle (308) to rotate downward.

7. The energy recovery shock absorber capable of automatically adjusting resistance based on working state as claimed in claim 6, characterized in that: The first connecting column (304) is connected to a first return spring (303), and an end of the first return spring (303) away from the first connecting column (304) is connected to a first paddle (302). The second connecting column (309) is connected to a second return spring (311), and an end of the second return spring (311) away from the second connecting column (309) is connected to a second paddle (308).

8. The energy recovery shock absorber capable of automatically adjusting resistance based on working state as claimed in claim 6, characterized in that: The outer end of the first connecting column (304) is threadedly connected to a first screw sleeve (301), and the first screw sleeve (301) abuts against the outer side of the first paddle (302). The outer end of the second connecting column (309) is threadedly connected to a second screw sleeve (310), and the second screw sleeve (310) abuts against the outer side of the second paddle (308).

Images