Electric wheelchair power supply

Abstract

The utility model provides an electric wheelchair power supply which comprises a battery box, a battery pack is arranged in the battery box, a wheelchair body is provided with a connecting piece, the connecting piece is provided with a first conductive piece, and the first conductive piece is electrically connected with a wheelchair driving module; a switching mechanism is arranged on the battery box, a second conductive piece is arranged on the switching mechanism, and the second conductive piece is electrically connected with the battery pack; the switching mechanism is detachably connected with the connecting piece, and when the switching mechanism and the connecting piece are assembled and connected, the first conductive piece and the second conductive piece are in contact and electrically connected, so that the battery pack supplies power to the wheelchair driving module; by arranging the connecting piece and the switching mechanism which are detachably connected, when the connecting piece and the switching mechanism are assembled and connected, the first conductive piece and the second conductive piece are in contact and are electrically connected, so that the power supply can supply power to the wheelchair driving module while the power supply and the wheelchair body are fixed; the situation that after the power source and the wheelchair body are fixed, wire harness independent connection is needed for power supply is avoided, and operation is saved.

Description

Technical Field

[0001] The present application relates to the technical field of electric wheelchair batteries, and in particular to an electric wheelchair power supply. Background Art

[0002] An electric wheelchair is generally powered by a battery. In the prior art, a battery usually has a charging port and a discharging port. A battery mounting seat is provided on the electric wheelchair, and the battery is assembled on the mounting seat so that the battery and the wheelchair body are relatively fixed. The discharging port of the battery is then electrically connected to the wheelchair drive module through a wiring harness so that the battery can power the wheelchair drive module. This results in the need to first fix the battery on the wheelchair each time it is used, and then connect the battery with a wiring harness to power the wheelchair drive module, which is cumbersome. Utility Model Content

[0003] The purpose of the present application is to provide an electric wheelchair power supply in view of the above problems, wherein the electric wheelchair comprises a wheelchair body and a wheelchair driving module for driving the wheelchair body, and the power supply comprises:

[0004] A battery box, wherein a battery pack is arranged in the battery box;

[0005] A connecting member, the connecting member is fixed to the wheelchair body, the connecting member is provided with a first conductive member, and the first conductive member is electrically connected to the wheelchair driving module;

[0006] A switching mechanism, wherein the switching mechanism is disposed on the battery box and a second conductive member is disposed on the switching mechanism, and the second conductive member is electrically connected to the battery pack; the switching mechanism and the connecting member are detachably connected, and when the two are assembled and connected, the first conductive member and the second conductive member contact each other and are electrically connected, so that the battery pack supplies power to the wheelchair drive module.

[0007] According to the technical solution provided in certain embodiments of the present application, the adapter mechanism includes an adapter seat, which is arranged on the battery box, and the adapter seat has a sliding bar extending along a first direction, and the connecting member has a sliding groove matching the sliding bar.

[0008] According to the technical solution provided in certain embodiments of the present application, the adapter mechanism also includes a snap-on assembly, which is arranged on one side of the adapter seat along the first direction, and the snap-on assembly has a snap-on portion, and one end of the connecting member along the first direction has a snap-on interface; the snap-on portion can be snapped with the card interface to fix the adapter mechanism to the connecting member.

[0009] According to the technical solution provided in certain embodiments of the present application, the snap-on assembly has a first state and a second state. When in the first state, the snap-on portion can be snap-on with the card interface to fix the adapter mechanism to the connecting piece; when in the second state, the snap-on portion is disengaged from the card interface, and the connecting piece can slide on the adapter seat along the first direction.

[0010] According to the technical solution provided in certain embodiments of the present application, the snap-on assembly includes a cover shell, which is arranged on the battery box, a mounting seat is arranged inside the cover shell, an elastic member is arranged on the mounting seat, the elastic member extends along a second direction and a pressing block is connected to the free end, the second direction is perpendicular to the first direction, the pressing block has a pressing portion and the snap-on portion, and a first through hole and a second through hole are provided on the cover shell; the snap-on portion extends from the first through hole, and the pressing portion extends from the second through hole; by applying / removing external force to the pressing portion, the pressing block can be moved along the second direction, thereby switching the snap-on assembly between the first state and the second state.

[0011] According to the technical solution provided in certain embodiments of the present application, a slot is provided on a side of the adapter away from the battery box, the slot extends along the first direction, the second conductive member is disposed in the slot, and when the connecting member is assembled and connected to the adapter, the first conductive member is inserted into the slot along the first direction and is in electrical contact with the second conductive member.

[0012] According to the technical solutions provided in some embodiments of the present application, the connecting member is further provided with a buckle for fixedly connecting with the wheelchair body.

[0013] According to the technical solution provided in some embodiments of the present application, a gripping block is provided on a side of the battery box away from the adapter mechanism.

[0014] According to the technical solutions provided in certain embodiments of the present application, a charging port is provided on the battery box, and the charging port is electrically connected to the battery pack.

[0015] Compared with the prior art, the present application has the following beneficial effects: the present application provides an electric wheelchair power supply, the electric wheelchair comprising a wheelchair body and a wheelchair driving module for driving the wheelchair body, the power supply comprising a battery box, a battery pack being arranged in the battery box, a connecting piece being fixed on the wheelchair body, a first conductive piece being arranged on the connecting piece, and the first conductive piece being electrically connected to the wheelchair driving module; a switching mechanism being arranged on the battery box, a second conductive piece being arranged on the switching mechanism, and the second conductive piece being electrically connected to the battery pack; the switching mechanism and the connecting piece are detachably connected, and when the two are assembled and connected, the first conductive piece and the second conductive piece are in contact with each other and electrically connected, so that the battery pack supplies power to the wheelchair driving module; by providing a detachably connected connecting piece and a switching mechanism, when the connecting piece and the switching mechanism are assembled and connected, the first conductive piece and the second conductive piece are in contact with each other and electrically connected, so that the battery pack supplies power to the wheelchair driving module, and at the same time, the battery box is fixed to the wheelchair body, so that the power supply can supply power to the wheelchair driving module while the power supply is fixed to the wheelchair body, thereby avoiding the need to use a wiring harness to connect the power supply separately after the power supply is fixed to the wheelchair body, thus saving operation and improving the user experience.

[0016] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of features or beneficial effects means that specific technical features, technical solutions or beneficial effects are included in at least one embodiment. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be realized without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in a specific embodiment that does not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of an electric wheelchair power supply provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of a connector for an electric wheelchair power supply provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a switching mechanism for an electric wheelchair power supply provided in an embodiment of the present application;

[0021] Figure 4 A cross-sectional schematic diagram of a switching mechanism for an electric wheelchair power supply provided in an embodiment of the present application;

[0022] Figure 5 A schematic structural diagram of the bottom of an electric wheelchair power supply provided in an embodiment of the present application.

[0023] The text annotations in the figure represent:

[0024] 1. Battery box; 2. Connector; 3. Adapter; 4. First conductive member; 5. Second conductive member; 6. Press block; 7. Cover; 8. Grip block; 9. Charging port; 21. First sub-component; 211. Second sub-component; 23. Buckle; 31. Slide bar; 32. Slot; 61. Card connection portion; 211. Card interface. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present application. Specifically, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] As mentioned in the background technology, in view of the problems in the prior art, this embodiment provides an electric wheelchair power supply, the electric wheelchair is the prior art, which includes a wheelchair body and a wheelchair driving module for driving the wheelchair body, and the power supply includes:

[0028] A battery box 1, wherein a battery pack is arranged in the battery box 1;

[0029] A connecting member 2, the connecting member 2 is fixed on the wheelchair body, a first conductive member 4 is provided on the connecting member 2, and the first conductive member 4 is electrically connected to the wheelchair driving module;

[0030] The adapter mechanism is arranged on the battery box 1, and a second conductive member 5 is provided on the adapter mechanism, and the second conductive member 5 is electrically connected to the battery pack; the adapter mechanism and the connecting member 2 are detachably connected, and when the two are assembled and connected, the first conductive member 4 and the second conductive member 5 are in contact with each other and electrically connected, so that the battery pack supplies power to the wheelchair drive module.

[0031] like Figure 1 As shown, the battery box 1 is approximately a rectangular shell, and the battery pack is composed of multiple batteries connected in parallel. The battery adopts the lithium battery commonly used in the prior art. The connecting piece 2 is fixed to the wheelchair body, and the adapter mechanism is arranged on the battery box 1. The first conductive piece 4 is a strip copper sheet, and the second conductive piece 5 is a pin in the prior art, which is also made of copper material for easy conduction. There are two of them, corresponding to the positive electrode and the negative electrode respectively. The first conductive piece 4 is electrically connected to the wheelchair drive module through a wiring harness, and the second conductive piece 5 is also electrically connected to the battery pack using a wiring harness. The battery box 1, the connecting piece 2 and the adapter mechanism are all made of plastic. When the adapter mechanism is assembled and connected to the connecting piece 2, the positive electrode copper sheet in the first conductive piece 4 is in contact with and electrically connected to the positive electrode pin in the second conductive piece 5, and the negative electrode copper sheet in the first conductive piece 4 is in contact with and electrically connected to the negative electrode pin in the second conductive piece 5, so that the battery pack can supply power to the wheelchair drive module.

[0032] By providing a detachable connecting member and an adapter mechanism, when the connecting member 2 and the adapter mechanism are assembled and connected, the first conductive member 4 is in contact with and electrically connected to the second conductive member 5, so that the battery pack supplies power to the wheelchair drive module. At the same time, the battery box 1 is fixed to the wheelchair body, so that the power supply can supply power to the wheelchair drive module while the power supply is fixed to the wheelchair body, avoiding the need to use a wiring harness to connect the power supply separately after the power supply is fixed to the wheelchair body, thus saving operation. At the same time, the positive and negative poles of the first conductive member 4 and the second conductive member 5 correspond to each other when electrically connected, preventing the plug from being inserted incorrectly.

[0033] In a preferred embodiment, the adapter mechanism includes an adapter seat 3 , which is disposed on the battery box 1 . The adapter seat 3 has a slide bar 31 extending along the first direction, and the connector 2 has a slide groove 21 matching the slide bar 31 .

[0034] like Figure 1 and Figure 3As shown, the first direction is the width direction of the battery box 1, the connecting member 2 includes a first sub-member 21 and two second sub-members 22 that are integrally connected, the two second sub-members 22 are respectively located on both sides of the first sub-member 21, and the two second sub-members 22 have a first protrusion on the side close to each other, so that the inner contour of the side of the connecting member 2 close to the second sub-member 22 is similar to a T-shaped structure, and two slide grooves are respectively formed between the two second sub-members 22 and the first sub-member 21; the two ends of the adapter 3 have a slide bar 31 extending along the first direction, and the side of the two slide bars 31 away from each other has a second protrusion, and the slide bar The outer contour of 31 matches the inner contour of the slide groove. When the connector 2 slides on the adapter seat 3 along the first direction, the two slide bars 31 respectively abut against the inner walls of the corresponding slide grooves, and the top end face of the first protrusion and the bottom end face of the second protrusion can slide in contact, so that the connector 2 and the adapter seat 3 can only slide relative to each other along the first direction; in this embodiment, a recessed structure is provided on the top end face of the first protrusion and the bottom end face of the second protrusion, so that the two end faces are not completely in contact, which can effectively reduce the friction when the adapter seat 3 and the connector 2 are inserted, and facilitate the connection and fixation of the adapter seat 3 and the connector 2.

[0035] In a preferred embodiment, the adapter mechanism also includes a snap-on assembly, which is arranged on one side of the adapter seat 3 along the first direction. The snap-on assembly has a snap-on portion 61, and one end of the first sub-component along the first direction has a snap-on interface 211; the snap-on portion 61 can be snap-on with the snap-on interface 211 to fix the adapter mechanism to the connector 2.

[0036] like Figure 2 and Figure 3 As shown, the outer contour of the clamping portion 61 matches the inner contour of the clamping interface 211. When the connecting member 2 slides on the adapter seat 3 along the first direction, the clamping portion 61 can correspond to the position of the clamping interface 211, and the first conductive member 4 and the second conductive member 5 are in contact and electrically connected. After the clamping portion 61 is clamped with the clamping interface 211, the adapter mechanism can limit the connecting member 2 in the first direction, thereby fixing the battery box 1 relatively to the wheelchair body, and the battery pack can supply power to the wheelchair drive module.

[0037] In a preferred embodiment, the snap-on assembly has a first state and a second state. When in the first state, the snap-on portion 61 can be snap-on with the card interface 211 to fix the adapter mechanism and the connector 2; when in the second state, the snap-on portion 61 is disengaged from the card interface 211, and the connector 2 can slide on the adapter seat 3 along the first direction.

[0038] In a preferred embodiment, the snap-on assembly includes a cover shell 7, which is disposed on the battery box 1. A mounting seat is disposed inside the cover shell 7, and an elastic member is disposed on the mounting seat. The elastic member extends along a second direction and a pressing block 6 is connected to the free end thereof. The second direction is perpendicular to the first direction. The pressing block 6 has a pressing portion and a snap-on portion 61. A first through hole and a second through hole are provided on the cover shell 7; the snap-on portion 61 extends from the first through hole, and the pressing portion extends from the second through hole; by applying / removing external force to the pressing portion, the pressing block 6 can be moved along the second direction, thereby switching the snap-on assembly between the first state and the second state.

[0039] like Figure 3 As shown, the second direction is the height direction of the battery box 1, the elastic member adopts a spring, the mounting seat is arranged in the cover shell 7, a cylindrical mounting groove extending along the second direction is provided on it, a cross-shaped limiting column extending along the second direction is provided in the mounting groove, and a gap is provided between the outer end of the limiting column and the inner wall of the mounting groove, and the gap is used to set the spring, and the spring is sleeved outside the limiting column so that the spring can be extended and retracted along the second direction when the spring is subjected to force, the first through hole is the same size and shape as the card interface 211, and the inner contour of the second through hole matches the outer contour of the pressing portion, and when the pressing block 6 is in a natural state, the clamping portion 61 extends out of the cover shell 7 from the first through hole, and the pressing portion extends out of the cover shell 7 from the second through hole; by applying a pressing external force to the pressing block 6, the pressing block 6 can be made to approach the battery box 1 , until the clamping portion 61 is flush with the outer surface of the cover shell 7, at this time the clamping assembly is in the second state; release the external force, the pressing block 6 moves in the direction away from the battery box 1 under the elastic force of the spring, so that the clamping portion 61 extends out of the cover shell 7 from the first through hole, and the pressing portion extends out of the cover shell 7 from the second through hole. At this time, the clamping assembly is in the first state, and the clamping assembly can be switched between the first state and the second state by applying / removing external force to the pressing block 6. When the clamping assembly is in the second state, the connector 2 is slid on the adapter 3 along the first direction to the position where the card interface 211 and the clamping portion 61 correspond to each other, and then the clamping assembly is switched to the first state, so that the clamping portion 61 can be clamped with the card interface 211, and the adapter mechanism is fixed to the connector 2.

[0040] In a preferred embodiment, a slot 32 is provided on a side of the adapter 3 away from the battery box 1, the slot 32 extends along a first direction, and the second conductive member 5 is disposed in the slot 32. When the connector 2 is assembled and connected to the adapter 3, the first conductive member 4 is inserted into the slot 32 along the first direction and is in electrical contact with the second conductive member 5.

[0041] like Figure 3 and Figure 4As shown, the adapter 3 is provided with two slots 32 extending along the first direction on the side away from the battery box 1, the two slots 32 are located between the two slide bars 31, the two second conductive members 5 are respectively embedded in the two slots 32, a reinforcement block is also provided between the two slide grooves, the two first conductive members 4 are provided on the reinforcement block, penetrate the reinforcement block and extend along the first direction, one end of the first conductive member 4 away from the card interface 211 is used for electrical connection with the wheelchair drive module, and the other end can be inserted into the slot 32 when the connecting member 2 slides along the first direction on the adapter 3, so that the first conductive member 4 and the second conductive member 5 are plug-fitted.

[0042] In a preferred embodiment, the connecting member 2 is further provided with a buckle 23 for fixedly connecting with the wheelchair body.

[0043] like Figure 1 As shown, a buckle 23 is provided on one side of the connecting member 2 away from the first conductive member 4, and the buckle 23 is used to be fixed to the wheelchair body.

[0044] In a preferred embodiment, a gripping block 8 is provided on a side of the battery box 1 away from the adapter.

[0045] like Figure 5 As shown, in this embodiment, five strip-shaped gripping blocks 8 are provided on the side of the battery box 1 away from the adapter 3, and the width of each gripping block 8 decreases successively along the first direction, so as to provide a gripping point for the hand when disassembling or installing the battery box 1.

[0046] In a preferred embodiment, the battery box 1 is provided with a charging port 9, and the charging port 9 is electrically connected to the battery pack.

[0047] like Figure 5 As shown, the charging port 9 is used to charge the battery pack.

[0048] Working principle: Before use, first install the connector 2 to the wheelchair body through the buckle 23, and connect the first conductive member 4 and the wheelchair drive module through the wiring harness. When the power supply needs to be installed, hold the battery box 1 to align the connector 2 with the adapter 3, the slide bar 31 corresponds to the position of the slide groove, push the battery box 1 along the first direction, so that the slide bar 31 is embedded in the slide groove and slides along the slide groove, press the pressing block 6, and the pressing block 6 compresses the spring under the action of external force and moves closer to the battery box, and continue to push the battery box until the first conductive member 4 is aligned with the adapter 3. The slot 32 is plugged in and assembled to contact and electrically connect with the second conductive member 5. The card interface 211 corresponds to the position of the card connection portion 61. The pressing block 6 is released, the spring rebounds and moves the pressing block 6 away from the battery box 1. The card connection portion 61 is embedded in the card interface 211. The card connection assembly is connected to the connector 2, and the battery pack can supply power to the wheelchair drive module. When the battery is exhausted and needs to be charged, press the pressing block 6 to release the limit of the card connection assembly on the connector 2, and push the battery box 1 in the opposite direction to remove the battery box 1.

[0049] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. An electric wheelchair power supply, the electric wheelchair comprising a wheelchair body and a wheelchair driving module for driving the wheelchair body, characterized in that: The power supply comprises: A battery box (1), wherein a battery pack is arranged in the battery box (1); A connecting member (2), the connecting member (2) being fixed on the wheelchair body, the connecting member (2) being provided with a first conductive member (4), the first conductive member (4) being electrically connected to the wheelchair drive module; A switching mechanism, the switching mechanism is arranged on the battery box (1), the switching mechanism is provided with a second conductive member (5), the second conductive member (5) is electrically connected to the battery pack; the switching mechanism and the connecting member (2) are detachably connected, and when the two are assembled and connected, the first conductive member (4) and the second conductive member (5) are in contact with each other and electrically connected, so that the battery pack supplies power to the wheelchair drive module.

2. An electric wheelchair power supply according to claim 1, characterized in that: The transfer mechanism comprises a transfer seat (3), the transfer seat (3) is arranged on the battery box (1), the transfer seat (3) has a slide bar (31) extending along a first direction, and the connecting member (2) has a slide groove matching the slide bar (31).

3. The electric wheelchair power supply according to claim 2, characterized in that: The adapter mechanism further comprises a snap-on assembly, the snap-on assembly being arranged on one side of the adapter seat (3) along the first direction, the snap-on assembly having a snap-on portion (61), and one end of the connecting piece (2) along the first direction having a snap-on interface (211); the snap-on portion (61) can be snap-oned with the snap-on interface (211) so that the adapter mechanism is fixed to the connecting piece (2).

4. The electric wheelchair power supply according to claim 3, characterized in that: The snap-fit ​​assembly has a first state and a second state. When in the first state, the snap-fit ​​portion (61) can snap-fit ​​with the snap interface (211) so that the adapter mechanism and the connecting member (2) are fixed. When in the second state, the snap-fit ​​portion (61) is disengaged from the snap interface (211), and the connecting member (2) can slide on the adapter seat (3) along the first direction.

5. The electric wheelchair power supply according to claim 4, characterized in that: The snap-on assembly comprises a cover shell (7), the cover shell (7) is arranged on the battery box (1), a mounting seat is arranged inside the cover shell (7), an elastic member is arranged on the mounting seat, the elastic member extends along a second direction and a pressing block (6) is connected to a free end thereof, the second direction is perpendicular to the first direction, the pressing block (6) has a pressing portion and the snap-on portion (61), a first through hole and a second through hole are provided on the cover shell (7); the snap-on portion (61) extends out from the first through hole, and the pressing portion extends out from the second through hole; by applying / removing an external force to the pressing portion, the pressing block (6) can be moved along the second direction, thereby switching the snap-on assembly between the first state and the second state.

6. The electric wheelchair power supply according to claim 2, characterized in that: A slot (32) is provided on a side of the adapter (3) away from the battery box (1), and the slot (32) extends along the first direction. The second conductive member (5) is arranged in the slot (32). When the connecting member (2) is assembled and connected with the adapter (3), the first conductive member (4) is inserted into the slot (32) along the first direction and is in contact with and electrically connected to the second conductive member (5).

7. The electric wheelchair power supply according to claim 1, characterized in that: The connecting member (2) is also provided with a buckle (23) for fixedly connecting with the wheelchair body.

8. The electric wheelchair power supply according to claim 1, characterized in that: A gripping block (8) is provided on a side of the battery box (1) away from the switching mechanism.

9. The electric wheelchair power supply according to claim 1, characterized in that: The battery box (1) is provided with a charging port (9), and the charging port (9) is electrically connected to the battery pack.

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