A mobile energy storage device

Abstract

The present invention belongs to the technical field of vehicle charging, and in particular, relates to a mobile energy storage device, including a base, a mobile plate, a driving mechanism, and an energy storage component. A rotating shaft 1 is rotatably assembled on the base, and a rotating shaft 2 coaxial with the rotating shaft is slidably assembled in the rotating shaft 1, and the rotating shaft 2 is rotatably assembled on the mobile plate; the driving mechanism includes a screw, component 1 and component 2 rotatably assembled on the base and threadedly connected to the mobile plate, the screw is parallel to the rotating shaft 1 and rotates synchronously, component 1 includes a one-way gear, component 2 includes a ratchet and a coaxial and synchronously rotating two-way gear, a ring, and a ratchet, the one-way gear and the two-way gear are both assembled on the rotating shaft 2, and the direction in which the ratchet limits the one-way rotation of the ratchet is opposite to the rotation direction of the one-way gear; the mobile plate has a through hole for the positioning rack to be inserted. The present invention can solve the technical problem that the position of the energy storage component needs to be adjusted multiple times so that the charging end of the energy storage component corresponds to the power supply end of the charging pile, which is troublesome to use.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle charging, and in particular relates to a mobile energy storage device. Background Art

[0002] With the advancement of technology and the reduction of costs, the cost of using new energy electric vehicles is getting lower and lower. With the support and encouragement of policies, the number of new energy electric vehicles is increasing. Since new energy vehicles need to find a fixed charging parking space when charging, and fuel vehicles often occupy charging parking spaces, electric vehicles that really need to be charged cannot use charging parking spaces, making it difficult for new energy electric vehicles to charge outside. For this reason, it is necessary to develop a mobile energy storage device that can be moved to the location of the car for charging after charging on the charging pile, without having to find a fixed charging pile.

[0003] The Chinese patent application with publication number CN117755413A discloses an energy storage trolley, including a body, a first wheel mechanism, a second wheel mechanism and a steering drive mechanism, wherein the first wheel mechanism is used to provide driving force for the energy storage trolley, the steering drive mechanism is used to drive the second wheel mechanism to adjust the direction of the energy storage trolley, the first wheel mechanism, the second wheel mechanism and the steering drive mechanism are all detachably connected to the body, wherein the steering drive mechanism includes a connecting rod assembly, the connecting rod assembly is hinged to the two rotating parts and the steering drive member, the output end of the steering drive member is hinged to the connecting rod assembly, and the steering drive member is used to drive the connecting rod assembly to move so that the two rotating parts rotate in the same direction. The energy storage trolley can carry batteries, has functions such as forward, backward and steering, and can realize free movement. However, when charging the energy storage trolley, it is necessary to adjust the position of the energy storage trolley multiple times so that the charging end of the battery and the power supply end of the charging pile correspond, which is more troublesome to use. Summary of the invention

[0004] The present invention provides a mobile energy storage device to solve the technical problem that the position of an energy storage component needs to be adjusted multiple times to make the charging end of the energy storage component correspond to the power supply end of a charging pile, which is troublesome to use.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A mobile energy storage device comprises a base, a moving plate horizontally slidably mounted on the base, a driving mechanism driving the moving plate to slide back and forth, and an energy storage member fixed to the moving plate. A rotating shaft 1 is rotatably mounted on the base and is parallel to and rotates synchronously with a screw rod. A rotating shaft 2 is fixed in the inner circumference of the rotating shaft 1 and is axially slidably mounted coaxially with the rotating shaft. The rotating shaft 2 is rotatably mounted on the moving plate. The driving mechanism comprises a screw rotatably mounted on the base and threadedly connected to the moving plate, a component 1 driving the screw to rotate, and a component 2 driving the screw to rotate in the opposite direction. The screw rod is parallel to and rotates synchronously with the rotating shaft 1. , component one includes a one-way gear, component two includes a ratchet and a coaxial and synchronously rotating two-way gear, a ring, and a ratchet, the one-way gear and the two-way gear are both assembled on the rotating shaft two, the fixed end of the ratchet is relatively fixed to the rotating shaft one, the pawl body of the ratchet is located in the cavity formed by the ratchet, the ring and the rotating shaft two, and the direction in which the ratchet limits the one-way rotation of the ratchet is opposite to the rotation direction of the one-way gear; the movable plate is provided with a through hole, and the through hole is provided for the positioning rack on the charging pile to contact the one-way gear and / or the two-way gear, and the energy storage component is provided with a power supply end adapted to the charging end on the charging pile.

[0007] The beneficial effects are as follows: the mounting hole allows the positioning rack to contact the one-way gear or the two-way gear, so the length of the mounting hole is greater than the positioning rack; when charging is required, the pushing device allows the positioning rack to penetrate the mounting hole, and as the positioning rack drives the one-way gear and the two-way gear, the movable plate can drive the energy storage component to move horizontally so that the charging end on the energy storage component corresponds to the power supply end on the charging pile, and after charging is completed, the pulling device allows the positioning rack to move out of the mounting hole, and the movable plate returns to its original position during the moving process; it is only necessary to move the positioning rack to correspond to any position of the mounting hole, and there is no need to reciprocate and adjust the wheels to make the charging end and the power supply end accurately correspond, thereby reducing the positioning difficulty of the present invention and making it simple and convenient to use.

[0008] Furthermore, the rotating shaft 1 and the screw are parallel to each other, and the rotating shaft 1 and the screw are connected via two worm gear pairs.

[0009] Beneficial effects: The worm gear pair has a stable transmission, is not prone to slipping during the transmission process, and has a high transmission accuracy.

[0010] Furthermore, the component one and the component two are respectively provided in two groups, and the two groups of the component one and the component two are respectively located on both sides of the worm gear pair.

[0011] Beneficial effect: The load borne by each one-way gear and ratchet is reduced, and the service life of the device is increased.

[0012] Furthermore, a plurality of magnets 1 are provided on the side of the one-way gear, and a plurality of magnets 2 are provided on the side of the two-way gear. The magnets 1 and 2 correspond one to one and attract each other, so that the gear teeth of the one-way gear and the two-way gear correspond to each other.

[0013] Beneficial effect: Through the attraction between magnet one and magnet two, the positions of the one-way gear and the two-way gear can be adjusted in real time. Since the gear teeth of the two always correspond to each other, the positioning rack is not hindered when moving between the one-way gear and the two-way gear, ensuring the normal operation of the device.

[0014] Furthermore, the second rotating shaft is slidably assembled in the first rotating shaft through a flat key, so that the second rotating shaft can slide axially and be fixed circumferentially relative to the first rotating shaft.

[0015] Furthermore, the ratchet is an inner ratchet, and one end of the ratchet teeth of the ratchet close to the circular ring has an inclined surface.

[0016] Beneficial effect: The setting of the inclined surface can effectively prevent the pawl from being hindered when moving from the inner wall of the ring to the ratchet teeth of the ratchet wheel, thereby ensuring the normal operation of the device.

[0017] Furthermore, the pawl includes a pawl body, a torsion spring and a connecting rod. The pawl body is rotatably assembled on the connecting rod through the torsion spring. The torsion spring has elastic potential energy that enables the pawl body to always fit the ratchet teeth or the inner wall of the circular ring of the ratchet wheel. The connecting rod is vertically fixed to the end face of the rotating shaft.

[0018] Furthermore, a slide rail extending in a direction parallel to the screw rod is provided on the top surface of the base, and a slide groove matching the slide rail is provided on the movable plate.

[0019] In the present invention, the second rotating shaft drives the first rotating shaft and the screw to rotate, thereby driving the movable plate to move left and right. There are three rotation situations of the second rotating shaft:

[0020] When the positioning rack is inserted into the insertion hole from the outside to the inside and contacts the one-way gear, the second rotating shaft is driven to rotate forward; when the positioning rack moves out of the insertion hole from the inside to the outside and contacts the two-way gear, and the claw body contacts the ratchet teeth of the ratchet wheel, the second rotating shaft is driven to rotate in the opposite direction; when the positioning rack is inserted into the insertion hole from the outside to the inside and contacts only the two-way gear, or the claw body is located in the ring, the second rotating shaft is stationary. The beneficial effects of the present invention are:

[0021] When charging is required, the positioning rack is inserted into the installation hole from the outside to the inside. The horizontal distance between the power supply end on the charging pile and the charging end on the energy storage component is the same as the distance the positioning rack drives the moving plate to move, so that the power supply end corresponds to the charging end; after charging is completed, the positioning rack moves out of the installation hole from the outside to the inside, and the positioning rack drives the moving plate to return to its original position. There is no need to accurately position the device during use. This device will automatically adjust the position of the charging end of the energy storage component, which is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2It is a schematic diagram of the disassembled structure of the energy storage component, the movable plate and the base;

[0024] Figure 3 It is a schematic diagram of the connection structure between the first rotating shaft and the second rotating shaft;

[0025] Figure 4 is a structural schematic diagram of component one;

[0026] Figure 5 This is a schematic diagram of the split structure of component 2;

[0027] Figure 6 Schematic diagram of the split structure of the pawl;

[0028] Figure 7 A schematic diagram of the relative positions of the pawl, the ring and the ratchet wheel when the positioning rack is only in contact with the bidirectional gear;

[0029] Figure 8 It is a schematic diagram of the relative positions of the pawl, the ring and the ratchet wheel when the positioning rack contacts the one-way gear;

[0030] Fig. 9 It is a schematic diagram of the relative positions of the pawl, the ring and the ratchet wheel when the moving plate moves to the point where the positioning rack only contacts the bidirectional gear;

[0031] Fig.10 It is a schematic diagram of the relative positions of the pawl, the ring and the ratchet when the charging end and the power supply end cooperate;

[0032] Fig.11 It is a schematic diagram of the relative positions of the pawl, the ring and the ratchet wheel when the moving plate returns to its original position;

[0033] Fig.12 It is a schematic diagram of the structure of the inclined plane.

[0034] Description of reference numerals:

[0035] 1. Base; 2. Wheel; 3. Moving plate; 4. Energy storage component; 5. Slide rail; 6. Slide groove; 7. Screw; 8. Bearing seat 1; 9. Bearing seat 2; 10. Rotating shaft 1; 11. Rotating shaft 2; 12. One-way gear; 13. Magnet 1; 14. Two-way gear; 15. Ring; 16. Ratchet; 17. Paw; 18. Paw body; 19. Torsion spring; 20. Connecting rod; 21. Charging pile; 22. Positioning rack; 23. Through hole; 24. Bearing seat 3; 25. Inclined surface; 26. Magnet 2. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] A mobile energy storage device, such as Figure 1 As shown, it includes a base 1, wheels 2, a movable plate 3, an energy storage component 4 and a driving mechanism. There are four wheels 2, all of which are assembled on the bottom surface of the base 1. A slide rail 5 is fixed horizontally on the top surface of the base 1. A slide groove 6 adapted to the slide rail 5 is provided on the movable plate 3. The driving mechanism is located between the movable plate 3 and the base 1, and is used to drive the movable plate 3 to reciprocate horizontally along the extension direction of the slide rail 5 and the slide groove 6. The energy storage component 4 is fixedly assembled on the top surface of the movable plate 3 by means of gluing or the like.

[0038] The driving mechanism includes a screw 7 rotatably mounted on the base 1 and threadedly connected to the moving plate 3, a component 1 driving the screw 7 to rotate so that the moving plate 3 moves horizontally, and a component 2 driving the screw 7 to rotate in the opposite direction so that the moving plate 3 returns to the initial state. Figure 2 As shown, the screw 7 is assembled on the top of the base 1 through a bearing seat 8 fixed on the top surface of the base 1. A bearing seat 2 9 is also fixed on the base 1. A rotating shaft 10 parallel to the screw 7 is rotatably assembled in the bearing seat 2 9. The rotating shaft 10 is connected to the middle part of the screw 7 through two sets of worm gear pairs, so that the rotating shaft 10 and the screw 7 rotate synchronously; Figure 3 As shown, a rotating shaft 11 coaxial with the rotating shaft 10 is slidably assembled in the rotating shaft 10 through a flat key, so that the rotating shaft 11 slides axially relative to the rotating shaft 10 and is fixed circumferentially. Both ends of the rotating shaft 11 are rotatably assembled on the moving plate 3 through bidirectional bearings. Figure 4 As shown, component 1 includes a one-way gear 12, which is assembled on a rotating shaft 2 11 through a one-way bearing, and a plurality of magnets 13 are circumferentially attached to the end surface of the one-way gear 12; Figure 2 and Figure 5 As shown, component 2 includes a bidirectional gear 14, a ring 15, and a ratchet 16. The bidirectional gear 14 is assembled on the rotating shaft 2 11 through a bidirectional bearing. A plurality of magnets 26 are circumferentially attached to the end face of the bidirectional gear 14 opposite to the one-way gear 12. The magnets 13 and the magnets 26 are opposite to each other and attract each other. The ratchet 16 is an inner ratchet. The ring 15 is fixedly connected to the end face of the bidirectional gear 14 away from the one-way gear 12. The ratchet 16 is fixedly connected to the end face of the ring 15. At this time, the bidirectional gear 14, the ring 15 and the ratchet 16 are coaxial and rotate synchronously. Component 2 also includes a ratchet 17. There are two ratchet 17, such as Figure 6As shown, the pawl 17 includes a pawl body 18, a torsion spring 19 and a connecting rod 20. The pawl body 18 has a round rod, and the connecting rod 20 is provided with a round hole adapted to the round rod. The torsion spring 19 is mounted on the round rod, and the two ends of the torsion spring 19 are respectively fixedly connected to the outer circumference of the round rod and the inner wall of the round hole. The connecting rod 20 is vertically fixedly connected to the end face of the rotating shaft 10, and the connecting rod 20 is parallel to the axis of the rotating shaft 10.

[0039] There is a positioning rack 22 on the charging pile 21, and the movable plate 3 has a penetration hole 23 for the positioning rack 22 to contact the one-way gear 12 and / or the two-way gear 14. When the positioning rack 22 is penetrated into the penetration hole 23 from the outside to the inside and contacts the one-way gear 12, the rotating shaft 2 11 is driven to rotate. The rotating shaft 1 11 drives the rotating shaft 1 10 to rotate through the flat key. The rotating shaft 10 drives the screw 7 to rotate through the worm gear pair, and the screw 7 drives the movable plate 3 to move horizontally.

[0040] In the present invention, both component 1 and component 2 are provided with two groups, such as Figure 2 As shown, the two groups of components one and two are respectively located on both sides of the worm gear pair, and the connecting rod 20 that is away from the moving direction of the moving plate 3 is vertically fixed on the end face of the rotating shaft three. The rotating shaft three is rotatably assembled on the base 1 through the bearing seat three 24. The connection method of the rotating shaft three and the rotating shaft two 11 is the same as the connection method of the rotating shaft one 10 and the rotating shaft two 11. At this time, the rotating shaft three rotates synchronously with the rotating shaft one 10, and the connecting rod 20 is relatively fixed to the rotating shaft one 10.

[0041] The device is pushed so that the positioning rack 22 vertically enters the insertion hole 23. According to the contact position between the positioning rack 22 and the one-way gear 12 and the two-way gear 14, the components 1 and 2 corresponding to the pawl 17 connected to the rotating shaft 10 are taken as examples, which are divided into the following two cases:

[0042] The first case: Figure 7 As shown, the positioning rack 22 is only in contact with the bidirectional gear 14. The positioning rack 22 moves inward along the through hole 23, driving the bidirectional gear 14 to rotate. At this time, the pawl 17 is only in contact with the inner wall of the ring 15, not in contact with the ratchet 16. The pawl 17 has no limiting effect on the ratchet 16, the rotating shaft 10 does not rotate, the energy storage component 4 and the moving plate 3 do not move in the horizontal direction, and the device continues to be pushed. The charging end on the energy storage component 4 just matches the power supply end on the charging pile 21.

[0043] The second situation: the positioning rack 22 is in full or partial contact with the one-way gear 12, such as Figure 8 This embodiment takes the contact between the positioning rack 22 and the one-way gear 12 as an example, and the subsequent movement steps of each component are as follows:

[0044] ① The positioning rack 22 passes through the through hole 23 and moves inward, and the moving plate 3 moves until the positioning rack 22 only contacts the bidirectional gear 14. Fig. 9 As shown. Under the restriction of the one-way gear 12, the positioning rack 22 drives the one-way gear 12 and the second shaft 11 to rotate synchronously, the second shaft 11 drives the screw 7 to rotate, the screw 7 drives the moving plate 3 and the energy storage member 4 to move in the horizontal direction, and the second shaft 11 and the one-way gear 12 and the two-way gear 14 synchronously follow the moving plate 3 to move until the positioning rack 22 is only in contact with the two-way gear 14. Since the second shaft 11 is connected to the moving plate 3, the fixed end of the pawl 17 is connected to the first shaft 10, and the horizontal position of the first shaft 10 is fixed relative to the base 1, so the pawl 17 gradually moves toward the ratchet 16 until the pawl body 18 is located in the ratchet 16.

[0045] ② The positioning rack 22 continues to move inward along the through hole 23 until the charging end and the power supply end are matched. Fig.10 The positioning rack 22 is only in contact with the bidirectional gear 14, and the bidirectional gear 14 drives the ring 15 and the ratchet 16 to rotate, and the pawl 17 does not restrict the ratchet 16 from rotating.

[0046] ③ After charging is completed, the positioning rack 22 is pulled out from the inside to the outside, and the moving plate 3 returns to its original position. Fig.11 As shown. During the process of pulling out the positioning rack 22, the two-way gear 14 rotates in the opposite direction, and the claw body 18 is engaged in the ratchet teeth of the ratchet wheel 16. Due to the limiting effect of the ratchet 17, the two-way gear 14 drives the second shaft 11 to rotate in the opposite direction through the ratchet wheel 16 and the ratchet 17, and the second shaft 11 drives the first shaft 10 to rotate in the opposite direction, and the first shaft 10 drives the screw 7 to rotate in the opposite direction, and the moving plate 3 and the energy storage member 4 return to their original positions, and the ratchet 17 gradually moves in the direction close to the ring 15 until the claw body 18 is located inside the ring 15.

[0047] ④ Continue to pull out the positioning rack 22 until the positioning rack 22 is out of the mounting hole 23 and all components return to the original position. Figure 8 When the positioning rack 22 is continuously pulled out, the one-way gear 12 will not drive the second shaft 11 to rotate; because the claw body 18 is in contact with the inner wall of the ring 15, the claw body 18 has no effect on the rotation of the two-way gear 14, and the two-way gear 14 will not drive the first shaft 10 to rotate. Therefore, when the positioning rack 22 is continuously pulled out, the moving plate 3 does not move.

[0048] like Fig.12 As shown, in order to prevent the inner teeth of the ratchet 16 from affecting the movement of the pawl 18, an inclined surface 25 is provided at one end of the inner teeth of the ratchet 16 close to the ring 15. Due to the presence of the magnet 13 and the magnet 26, the relative positions of the one-way gear 12 and the two-way gear 14 can be adjusted in time to ensure that the gear teeth on the one-way gear 12 and the two-way gear 14 correspond to each other, and the positioning rack 22 can reciprocate between the one-way gear 12 and the two-way gear 14.

[0049] The length of the insertion hole 23 is relatively long. During use of the present invention, it is only necessary to adjust the wheel 2 so that the positioning rack 22 and the insertion hole 23 are relative to each other at a certain position. There is no need to repeatedly adjust the position of the positioning device to accurately locate the device, and the invention is easy to use.

Claims

1. A mobile energy storage device, characterized in that: The invention comprises a base (1), a moving plate (3) horizontally slidably mounted on the base (1), a driving mechanism for driving the moving plate (3) to slide back and forth, and an energy storage member (4) fixed to the moving plate (3); a rotating shaft (10) is rotatably mounted on the base (1); a rotating shaft (11) coaxial with the rotating shaft (10) is rotatably mounted on the inner circumference of the rotating shaft (10) and axially slidably mounted; the rotating shaft (11) is rotatably mounted on the moving plate (3); the driving mechanism comprises a screw (7) rotatably mounted on the base (1) and threadedly connected to the moving plate (3); a component (1) for driving the screw (7) to rotate; and a component (2) for driving the screw (7) to rotate in the opposite direction; the screw (7) and the rotating shaft (10) rotate in parallel and synchronously; the component (1) comprises a one-way gear (12); and the component (2) comprises a ratchet ( 17) and a coaxial and synchronously rotating bidirectional gear (14), a circular ring (15), and a ratchet (16); the unidirectional gear (12) is assembled on the second rotating shaft (11) through a unidirectional bearing; the bidirectional gear (14) is assembled on the second rotating shaft (11) through a bidirectional bearing; the fixed end of the ratchet (17) is relatively fixed to the first rotating shaft (10); the pawl body (18) of the ratchet (17) is located in a cavity formed by the ratchet (16), the circular ring (15) and the second rotating shaft (11); the movable plate (3) is provided with a through hole (23); the through hole (23) is used for the positioning rack (22) on the charging pile (21) to contact with the unidirectional gear (12) and / or the bidirectional gear (14); the energy storage component (4) is provided with a charging end adapted to the power supply end on the charging pile (21); When the one-way gear (12) is driven by the positioning rack (22), it rotates in the positive direction, and the pawl (17) limits the one-way rotation of the ratchet wheel (16) in the direction opposite to the positive rotation direction of the one-way gear (12); A plurality of first magnets (13) are provided on the side of the one-way gear (12), and a plurality of second magnets (26) are provided on the side of the two-way gear (14). The first magnets (13) and the second magnets (26) correspond to each other and attract each other, so that the gear teeth of the one-way gear (12) and the two-way gear (14) correspond to each other.

2. A mobile energy storage device according to claim 1, characterized in that: The rotating shaft one (10) and the screw rod (7) are parallel to each other, and the rotating shaft one (10) and the screw rod (7) are connected via two worm gear pairs.

3. A mobile energy storage device according to claim 2, characterized in that: Two groups of component one and component two are respectively provided, and the two groups of component one and component two are respectively located on both sides of the worm gear pair.

4. A mobile energy storage device according to claim 3, characterized in that: The second rotating shaft (11) is slidably assembled in the first rotating shaft (10) via a flat key, so that the second rotating shaft (11) can slide axially and be fixed circumferentially relative to the first rotating shaft (10).

5. A mobile energy storage device according to any one of claims 1 to 4, characterized in that: The ratchet (16) is an inner ratchet, and one end of the ratchet teeth of the ratchet (16) close to the ring (15) has an inclined surface (25).

6. A mobile energy storage device according to claim 5, characterized in that: The ratchet pawl (17) comprises a pawl body (18), a torsion spring (19) and a connecting rod (20); the pawl body (18) is rotatably mounted on the connecting rod (20) via the torsion spring (19); the torsion spring (19) has elastic potential energy that enables the pawl body (18) to always fit the ratchet teeth of the ratchet wheel (16) or the inner wall of the circular ring (15); and the connecting rod (20) is vertically fixed to the end face of the rotating shaft (10).

7. A mobile energy storage device according to claim 6, characterized in that: A slide rail (5) extending in a direction parallel to the screw rod (7) is provided on the top surface of the base (1), and a slide groove (6) adapted to the slide rail (5) is provided on the movable plate (3).

Images