CN212587622U

CN212587622U - Power battery electric connection structure of portable battery-replacing electric vehicle

Info

Publication number: CN212587622U
Application number: CN202021133719.XU
Authority: CN
Inventors: 周道辉; 蔡锋
Original assignee: Dialev New Energy Automobile Co ltd
Current assignee: Dialev New Energy Automobile Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-23
Anticipated expiration: 2030-06-16

Abstract

The utility model provides a power battery electric connection structure of a portable battery replacing electric vehicle, which comprises a shell body with a power supply socket, wherein the shell body is provided with a connecting part which can be connected with a vehicle frame and a plurality of cavities in which power battery packs can be inserted; the power battery pack is cuboid, a positive pole column and a negative pole column are respectively constructed on the opposite side surfaces of the power battery pack, and a negative pole end and a positive pole end are formed on the opposite side walls of each cavity corresponding to the positive pole column and the negative pole column; be equipped with the relay and the energy supply device who is connected with the relay on power battery package, on the normally open contact branch of relay was located the side at anodal post and negative pole post place, because of power battery package cartridge in the cavity, normally open contact can be closed, and constitutes the intercommunication of anodal post and negative pole end, and the intercommunication of negative pole post and anodal end. The utility model discloses a portable quick change that trades electric motor car power battery electric connection structure power battery package of being convenient for can guarantee electric connection's fail safe nature simultaneously.

Description

Power battery electric connection structure of portable battery-replacing electric vehicle

Technical Field

The utility model relates to an electric automobile makes technical field, in particular to portable electric motor car power battery electric connection structure that trades.

Background

The electric automobile is developed rapidly with the advantages of energy conservation and environmental protection, but the electric automobile has long charging time and short endurance mileage and is a key factor restricting the development of the electric automobile. The electric automobile 'battery replacement mode' provides a research direction for solving the problem, and the battery replacement means that a large number of batteries are stored, charged and uniformly distributed in a centralized manner through a centralized charging station, and the batteries of the electric automobile are replaced in the battery distribution station, or the centralized charging, logistics allocation and battery replacement are integrated. At present, the power battery pack connecting structure on the existing quick-change electric automobile is a mechanical locking structure, and the installation of a quick-change power battery pack can be completed only by manually disassembling and assembling the power battery pack by workers, so that the power battery pack is inconvenient to disassemble and assemble and has high labor intensity, and the electricity replacement work efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a portable electric motor car power battery electric connection structure that trades to can be convenient for the nimble change of power battery package and connect reliably.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a portable electric motor car power battery electric connection structure that trades, includes: the shell body is provided with a connecting part which can be connected with a frame, and a plurality of cavities in which power battery packs can be inserted are formed on the shell body; the power battery pack is cuboid, positive poles and negative poles are respectively constructed on opposite side faces of the power battery pack, and negative ends and positive ends are formed on opposite side walls of each cavity corresponding to the positive poles and the negative poles;

the power battery pack is provided with a relay and an energy supply device connected with the relay, the normally open contact of the relay is arranged on the side face of the positive pole and the side face of the negative pole, the power battery pack is inserted in the cavity, the normally open contact can be closed, the positive pole is communicated with the negative pole end, and the negative pole is communicated with the positive pole end.

Further, in be equipped with the mounting groove on the power battery package, the relay reaches energy supply unit locates in the mounting groove, energy supply unit's positive pole and negative pole respectively with two input terminal of relay are connected.

Furthermore, an openable sealing cover is arranged at the opening of the mounting groove.

Furthermore, a handle is arranged on the power battery pack.

Furthermore, the shell body is of a frame structure, and a plurality of lightening holes are formed in the bottom surface of the shell body.

Furthermore, the positive pole column and the negative pole column are both in a convex column shape.

Furthermore, a guide groove is formed in the side face, corresponding to the positive pole and the negative pole, of the power battery pack, and the normally open contact is arranged at the root of the guide groove.

Furthermore, a guide convex column is arranged on the shell body corresponding to the guide groove, and the power battery pack is inserted into the shell body, the guide convex column slides along the guide groove, and the upper surface of the guide convex column tightly pushes the normally open contact to form the closing of the normally open contact.

Furthermore, an accommodating groove is formed in the root of the guide groove, a butting end of the relay output circuit is arranged at the root of the accommodating groove, an elastic piece is arranged between the normally open contact and the butting end, and the elastic piece is compressed and deformed due to the movement of the normally open contact along the accommodating groove to form the connection between the normally open contact and the butting end; and the normally open contact can be disconnected from the abutting end due to the reset of the elastic piece.

Further, the elastic member is a spring.

Compared with the prior art, the utility model discloses following advantage has:

(1) portable electric motor car power battery electric connection structure that trades, through the relay that sets up and normally open contact's closure, can make power battery package at the in-process of cartridge in the cavity, although anodal post has been connected with the negative pole end, the negative pole post has been connected with the positive pole end, but because normally open contact is not closed to make the circuit of connecting be in and not communicate the state, with the safe and reliable that can guarantee cartridge and dismantlement in-process. After the cartridge targets in place for normally open contact is closed, and the circuit of connecting this moment feeds through to can realize the electricity of each power battery package and connect, the utility model discloses a portable quick change electric motor car power battery electricity connection structure, the quick change of the power battery package of not only being convenient for still can effectively guarantee the fail safe nature of electricity connection simultaneously, and has better result of use.

(2) The mounting groove that sets up to for relay and energy supply device provide the installation basis.

(3) Set up the closing cap to can block uncovered, thereby can effectively prevent that the dust from getting into the mounting groove, can play certain guard action to relay and energy supply device simultaneously.

(4) Through the handle that sets up to the power battery package is operated to handheld operation, thereby the cartridge and the quick change of power battery package are convenient for.

(5) The lightening holes are arranged, so that the lightweight design of the structure is facilitated.

(6) Through the cooperation of the guide groove and the guide convex column, the power battery pack can be well guided during insertion. In addition, the upper surface of the guide convex column is abutted against the normally open contact arranged at the root of the guide groove, so that the normally open contact is closed, and the circuit is connected in a conduction mode.

(7) Through elastic deformation and reset of the elastic piece, the normally open contact is closed and disconnected, so that the connection and disconnection of a circuit can be realized quickly, and the quick change and the electric connection of the power battery pack are convenient to realize.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of an electric connection structure of a power battery of a portable battery-replaceable electric vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a housing body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power battery pack according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

fig. 5 is a top view of a power battery pack according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

description of reference numerals:

1-a shell body, 11-a connecting plate, 111-a long hole, 12-a power supply socket, 13-a positive terminal, 14-a negative terminal, 15-a guide convex column and 16-a lightening hole;

2-power battery pack, 21-handle, 22-positive pole, 23-negative pole, 24-guide groove, 241-normally open contact, 242-spring, 243-abutting end, 244-end cover, 25-mounting groove, 26-relay, 27-energy supply device and 29-sealing cover.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a power battery electric connection structure of a portable battery-replaceable electric vehicle, one exemplary structure of which is shown in fig. 1, and the power battery electric connection structure of the portable battery-replaceable electric vehicle mainly comprises a shell body 1 with a power supply socket 12 and a power battery pack 2, wherein the shell body 1 is combined with the structure shown in fig. 1 and fig. 2, and is of a frame-type cuboid structure and provided with a connecting part which can be connected with a vehicle frame, specifically, connecting plates 11 which are outwards turned are arranged on two opposite sides of the shell body 1, and the connecting plates 11 can be lapped on the vehicle frame and are connected with the vehicle frame into a whole in a screwing or welding mode. In this embodiment, the connection is preferably a screw connection, and the connection portion is specifically a long hole 111 formed on the connection plate 11, so as to facilitate the connection of the housing body 1 to the frame. In addition, a plurality of cavities are formed on the shell body 1 so as to allow the power battery pack 2 to be inserted and connected.

In order to realize the light weight design of the structure, a plurality of lightening holes 16 are arranged on the bottom surface of the shell body 1. In this embodiment, the power battery pack 2 is rectangular, as shown in fig. 1 and 2 in conjunction with fig. 3 to 5, a positive post 22 and a negative post 23 are respectively formed on opposite side surfaces of the power battery pack 2, and a negative end 14 and a positive end 13 are formed on opposite side walls of each cavity corresponding to the positive post 22 and the negative post 23. Wherein, adopt prior art on the casing body 1, bury the circuit in casing body 1 is inside to expose negative pole end 14 and positive terminal 13 and be connected with positive post 22 and negative pole post 23 so that, this structure is mature technology, and no longer give consideration to here. In addition, in the present embodiment, each of the positive post 22 and the negative post 23 is a convex column, and the corresponding negative terminal 14 and the positive terminal 13 are concave columns, so that the positive post 22 and the negative terminal 14 and the negative post 23 and the positive terminal 13 can be better connected.

As shown in fig. 3 and 4, the power battery pack 2 is provided with a relay 26 and an energy supply device 27 connected to the relay 26, a normally open contact 241 of the relay 26 is respectively disposed on the side where the positive pole 22 and the negative pole 23 are located, and since the power battery pack 2 is inserted into the cavity, the normally open contact 241 can be closed, so that the positive pole 22 and the negative pole 14 can be communicated, and the negative pole 23 and the positive pole 13 can be communicated.

It should be noted that the power supply device 27 may be a dry battery or a rechargeable battery, so as to provide power for the relay 26, thereby facilitating the closing of the normally open contact 241, and in addition, the type of the relay 26 may be selected according to the design requirement of the power battery pack. Furthermore, the line connections of the relay 26 are connected in the prior art, i.e. the energizing device 27 is connected to two input terminals of the relay 26 to form a control loop, and two output terminals of the relay 26 are connected to the positive pole 22 and the negative pole 23 of the power battery pack 2 to form a working loop.

In order to provide a mounting base for the relay 26 and the energy supply device 27, a mounting groove 25 is provided on the power battery pack 2, the relay 26 and the energy supply device 27 are disposed in the mounting groove 25, wherein the positive pole and the negative pole of the energy supply device 27 are respectively connected with two input terminals of the relay 26. In order to prevent dust from entering the installation slot 25, an openable cover 29 is provided at the opening of the installation slot 25, and the relay 26 and the energy supply device 27 are protected. In order to facilitate the handheld operation of the power battery pack 2, the power battery pack 2 is provided with a handle 21, so that the power battery pack 2 can be conveniently inserted and quickly replaced.

In this embodiment, a guide groove 24 is formed on the side surface of the power battery pack 2 corresponding to the positive pole 22 and the negative pole 23, and the normally open contact 241 is disposed at the root of the guide groove 24. Corresponding to the guiding groove 24, the guiding convex column 15 is arranged on the shell body 1, and because the power battery pack 2 is inserted into the shell body 1, the guiding convex column 15 slides along the guiding groove 24, and the upper surface of the guiding convex column 15 tightly pushes the normally open contact 241, so that the normally open contact 241 is closed. Through the matching of the arranged guide groove 24 and the guide convex column 15, a better guiding effect can be achieved when the power battery pack 2 is inserted. In addition, the upper surface of the guiding convex column 15 is abutted against the normally open contact 241 arranged at the root of the guiding groove 24, so that the normally open contact 241 is closed, and the conduction connection of the circuit is realized.

Specifically, it is shown in fig. 5 and 6. An accommodating groove is formed in the root of the guide groove 24, an abutting end 243 of an output circuit of the relay 26 is arranged at the root of the accommodating groove, the normally open contact 241 is packaged in the accommodating groove through an end cover 244, the normally open contact 241 can move along the accommodating groove, an elastic piece is arranged between the normally open contact 241 and the abutting end 243, two ends of the elastic piece respectively abut against the bottom of the accommodating groove and the normally open contact 241, and the elastic piece is compressed and elastically deformed to form connection of the normally open contact 241 and the abutting end 243 due to the movement of the normally open contact 241 along the accommodating groove; due to the reset of the elastic element, the normally open contact 241 and the abutting end 243 can be disconnected, so that the connection and disconnection of the circuit can be realized quickly, and the quick change and the safe and reliable electrical connection of the power battery pack 2 can be realized conveniently. In this embodiment, the elastic member is preferably a spring 242, the contact portion between the spring 242 and the normally open contact 241 is insulated, and the end cap 244 is preferably made of an insulating material.

When the power battery pack is used, the power battery pack 2 can be inserted into the cavity through the closing of the relay 26 and the normally open contact 241, although the positive pole column 22 is connected with the negative pole end 14 and the negative pole column 23 is connected with the positive pole end 13, the normally open contact 241 is not closed, so that a connected circuit is in an unconnected state, and the safety and the reliability in the inserting and detaching processes can be guaranteed. When the power battery pack is inserted in place, the normally open contact 241 is closed, and the circuits connected at the moment are communicated, so that the power battery packs 2 can be electrically connected.

The utility model discloses a portable electric motor car power battery electricity connection structure that trades not only is convenient for power battery package 2's quick change, still can effectively guarantee the fail safe nature of electricity connection simultaneously to better result of use has.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable electric motor car power battery electric connection structure that trades which characterized in that includes: the power battery pack comprises a shell body (1) with a power supply socket (12), wherein the shell body (1) is provided with a connecting part which can be connected with a frame, and a plurality of cavities in which power battery packs (2) can be inserted are formed in the shell body (1); the power battery pack (2) is cuboid, a positive pole column (22) and a negative pole column (23) are respectively constructed on the opposite side surfaces of the power battery pack (2), and a negative pole end (14) and a positive pole end (13) are formed on the opposite side walls of each cavity corresponding to the positive pole column (22) and the negative pole column (23);

be equipped with relay (26) on power battery package (2) and with energy supply device (27) that relay (26) are connected, normally open contact (241) branch of relay (26) is located anodal post (22) with on the side at negative pole post (23) place, because of power battery package (2) cartridge in the cavity, normally open contact (241) can be closed, and constitute anodal post (22) with the intercommunication of negative pole end (14), and negative pole post (23) with the intercommunication of positive pole end (13).

2. The portable electric vehicle power battery electric connection structure that trades of claim 1, characterized in that: be equipped with mounting groove (25) on power battery package (2), relay (26) reach energy supply device (27) are located in mounting groove (25), the positive pole and the negative pole of energy supply device (27) respectively with two input terminal of relay (26) are connected.

3. The portable electric vehicle power battery electric connection structure that trades of claim 2, characterized in that: an openable sealing cover (29) is arranged at the opening of the mounting groove (25).

4. The portable electric vehicle power battery electric connection structure that trades of claim 3, characterized in that: a handle (21) is arranged on the power battery pack (2).

5. The portable electric vehicle power battery electric connection structure that trades of claim 1, characterized in that: the shell body (1) is of a frame type structure, and a plurality of lightening holes (16) are formed in the bottom surface of the shell body (1).

6. The portable electric vehicle power battery electric connection structure that trades of claim 1, characterized in that: the positive pole column (22) and the negative pole column (23) are both in a convex column shape.

7. The portable electric vehicle power battery electric connection structure that trades of claim 1, characterized in that: and a guide groove (24) is formed in the side surface, corresponding to the positive pole (22) and the negative pole (23), of the power battery pack (2), and the normally open contact (241) is arranged at the root of the guide groove (24).

8. The portable electric vehicle power battery electric connection structure that trades of claim 7, characterized in that: corresponding to the guide groove (24), a guide convex column (15) is arranged on the shell body (1), the power battery pack (2) is inserted into the shell body (1), the guide convex column (15) slides along the guide groove (24), and the upper surface of the guide convex column (15) tightly pushes the normally open contact (241), so that the normally open contact (241) is closed.

9. The portable electric vehicle power battery electric connection structure that trades of claim 7, characterized in that: an accommodating groove is formed in the root of the guide groove (24), an abutting end (243) of an output circuit of the relay (26) is arranged at the root of the accommodating groove, an elastic piece is arranged between the normally open contact (241) and the abutting end (243), and the elastic piece is compressed and deformed to form connection between the normally open contact (241) and the abutting end (243) due to movement of the normally open contact (241) along the accommodating groove; and the normally open contact (241) and the abutting end (243) can be disconnected due to the reset of the elastic piece.

10. The portable electric vehicle power battery electric connection structure that trades of claim 9, characterized in that: the elastic member is a spring (242).