CN212950243U

CN212950243U - Locking device for battery replacement and vehicle using same

Info

Publication number: CN212950243U
Application number: CN202021435721.2U
Authority: CN
Inventors: 贾俊; 来安东; 杨全凯
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Jizhi New Energy Automobile Technology Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-04-13
Anticipated expiration: 2030-07-20

Abstract

The application provides a locking device for battery replacement and a vehicle using the same, wherein the locking device comprises a first lock body, a second lock body and a locking mechanism; the locking mechanism comprises a driving rod, an ejection steel column and two locking steel columns; the second lock body is provided with a locking cavity matched with the locking mechanism, and the ejection steel column and the two locking steel columns are arranged in the locking cavity; the locking cavity is provided with a first opening and a second opening opposite to the first opening; the second lock body can extend into the first lock body, and the driving rod can extend into the locking cavity to control the position of the ejection steel column; the driving rod enables the ejection steel columns to eject the two locking steel columns out of the first opening and the second opening respectively and be clamped with the inner wall of the first lock body to realize locking by controlling the positions of the ejection steel columns; or the driving rod enables the two locking steel columns to be kept in the second lock body to realize unlocking by controlling the positions of the ejection steel columns. The locking device can realize locking only by a small torque, improves the durability of the lock body and reduces the failure rate.

Description

Locking device for battery replacement and vehicle using same

Technical Field

The application relates to the technical field of electric automobiles, in particular to a locking device for battery replacement and a vehicle using the same.

Background

The electric power supply mode of the power battery of the electric automobile is generally divided into two modes of inserting charging with the automobile and replacing the battery, wherein the inserting charging mode comprises a slow charging mode and a fast charging mode. The insertion charging mode has the following defects: 1. the initial investment cost of the battery is high, and the popularization of the electric automobile is hindered to a certain extent; 2. The charging time is too long, at least 2-4 hours, and compared with the oiling of a common automobile, the time spent on supplying energy by the electric automobile is too long, so that the charging is not convenient and fast, and the requirements of people cannot be met. The fast charging mode may cause great damage to the battery, resulting in shortened service life of the battery.

The problem of the plug-in charging mode can be effectively avoided by adopting the mode of replacing the battery. The key point of realizing quick battery replacement of the power battery of the electric automobile is the design of a battery replacement locking mechanism, and the main function of the battery replacement lock body is to keep the automobile body and the battery pack in a firm connection state when the battery replacement is not carried out; when the battery is replaced, the vehicle body and the battery pack are quickly connected and separated.

And the locking mechanism in the prior art has the problems of poor battery and vehicle positioning, incapability of full restraint, poor durability, large installation torque and low structural strength in the battery replacement process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses a locking device for battery replacement, which comprises a first lock body, a second lock body and a locking mechanism;

the locking mechanism comprises a driving rod, an ejection steel column and two locking steel columns;

the second lock body is provided with a locking cavity matched with the locking mechanism, and the ejection steel column and the two locking steel columns are arranged in the locking cavity;

the locking cavity is provided with a first opening and a second opening opposite to the first opening;

the second lock body can extend into the first lock body, and the driving rod can extend into the locking cavity to control the position of the ejection steel column;

the driving rod enables the ejection steel columns to eject the two locking steel columns out of the first opening and the second opening respectively and be clamped with the inner wall of the first lock body to realize locking by controlling the positions of the ejection steel columns; or the driving rod enables the two locking steel columns to be kept in the second lock body to realize unlocking by controlling the positions of the ejection steel columns.

Furthermore, one end of the driving rod is arranged outside the locking cavity, and the other end of the driving rod extends into the locking cavity and is connected with the ejection steel column; and the side surfaces of the ejection steel columns are tangent to the side surfaces of the two locking steel columns respectively in a locking state.

Furthermore, a space for the longitudinal movement of the ejection steel column and a space for the transverse movement of the two locking steel columns are arranged in the locking cavity.

Furthermore, the locking cavity is provided with a third opening, and the driving rod extends into the locking cavity through the third opening.

Furthermore, a first connecting portion is arranged in the locking cavity, and the driving rod is connected with the locking cavity through the first connecting portion and moves relative to the locking cavity.

Furthermore, the driving rod is provided with an external thread, and the first connecting part is an internal thread matched with the external thread.

Furthermore, the first lock body is provided with an opening and an inner cavity, and the second lock body extends into the inner cavity through the opening.

Further, the second lock body includes spacing portion and joint portion, joint portion passes through the opening stretches into the inner chamber, spacing portion with the open end of inner chamber is connected.

Further, the second lock body is provided with a guide part, and the guide part is formed by gradually reducing the outer wall of the clamping part inwards.

The application further provides a vehicle comprising the locking device for replacing the battery.

By adopting the technical scheme, the application has the following beneficial effects:

the application provides a locking means for trading electricity adopts the ejecting steel column of actuating lever drive to drive two locking steel columns and moves between unlocking position and locking position and realize locking means's locking and unblock, and this locking means only needs less moment of torsion can realize locking, has improved the durability of lock body, reduces the fault rate. And the locking device structure that this application embodiment provided is small and exquisite, can satisfy side direction, Z to mode installation needs, and is little to vehicle and battery influence, and the compatibility is strong. In addition, the locking device of the application is provided with the guide part on the second lock body, so that deviation can be absorbed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating a locking state of a locking device for battery replacement according to an embodiment of the present application;

fig. 2 is a schematic diagram of an unlocked state of a locking device for battery replacement according to an embodiment of the present application.

The following is a supplementary description of the drawings:

1-a first lock body; 2-a second lock body; 21-a limiting part; 22-a clamping part; 221-a guide; 31-a drive rod; 32-ejecting the steel column; 33-locking the steel column; 4-a first opening; 5-second opening.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

Referring to fig. 1 in combination with fig. 2, fig. 1 and fig. 2 are schematic diagrams illustrating a locking state and an unlocking state of a locking device for battery replacement according to an embodiment of the present application, where the locking device includes a first lock body 1, a second lock body 2, and a locking mechanism; the first lock body 1 is provided with an opening and an inner cavity, and the second lock body 2 extends into the inner cavity through the opening.

The locking mechanism comprises a driving rod 31, an ejection steel column 32 and two locking steel columns 33;

the second lock body 2 is provided with a locking cavity matched with the locking mechanism, and the ejection steel column 32 and the two locking steel columns 33 are both arranged in the locking cavity;

the locking cavity is provided with a first opening 4 and a second opening 5 opposite to the first opening 4;

the second lock body 2 can extend into the first lock body 1, and the driving rod 31 can extend into the locking cavity to control the position of the ejection steel column 32; one end of the driving rod 31 is arranged outside the locking cavity, and the other end of the driving rod 31 extends into the locking cavity and is connected with the ejection steel column 32;

the driving rod 31 enables the ejection steel column 32 to eject the two locking steel columns 33 out of the first opening 4 and the second opening 5 respectively by controlling the positions of the ejection steel columns 32, and the two locking steel columns are clamped with the inner wall of the first lock body 1 to realize locking; or the driving rod 31 unlocks by controlling the position of the ejection steel column 32 so that the two locking steel columns 33 are kept in the second lock body 2.

When locking is needed, the driving rod 31 is controlled to move upwards, the driving rod 31 pushes against the ejection steel column 32 to move upwards, and the ejection steel column 32 pushes against the two locking steel columns 33 to move towards two sides respectively until partial areas of the two locking steel columns 33 move out of the first opening 4 and the second opening 5 respectively and are clamped or abutted with the inner wall of the first lock body 1 to achieve locking. The side surfaces of the ejection steel columns 32 are tangent to the side surfaces of the two locking steel columns 33 in the locked state. And the locking steel column 33 and the ejection steel column 32 are in line contact fit, so that the problem of stress concentration between contact points of the locking steel column 33 and the ejection steel column 32 is greatly reduced. In the embodiment of the present application, an anti-slip portion is disposed at a position where the locking steel column 33 is clamped on the first lock body 1, and the anti-slip portion can increase a friction force between the first lock body 1 and the locking steel column 33; the anti-slip part may be formed by arranging a plurality of strip-shaped protrusions at the position, connected with the locking steel column 33, on the first lock body 1, or formed by arranging a plurality of strip-shaped recesses at the position, connected with the locking steel column 33, on the first lock body 1, or formed as a plane with a larger roughness at the position, connected with the locking steel column 33, on the first lock body 1. After locking, the friction force between the first lock body 1 and the locking steel column 33 is utilized to realize locking, so that the full restraint fixation of the battery and the vehicle is realized, the battery is prevented from shaking during the running of the vehicle, and the safety of the electric vehicle is improved.

When unlocking is required, the driving rod 31 is controlled to move downwards, the ejection steel column 32 also moves downwards along with the driving rod 31, the ejection steel column 32 is separated from the two locking steel columns 33, and the two locking steel columns 33 return to the second lock body 2.

The locking device for exchanging electricity provided by the application adopts the driving rod 31 to drive the ejection steel column 32 to drive the two locking steel columns 33 to move between the unlocking position and the locking position to realize locking and unlocking of the locking device, the locking device can realize locking only by small torque, the durability of a lock body is improved, and the failure rate is reduced.

In the embodiment of the present application, a space for the longitudinal movement of the ejection steel column 32 and a space for the transverse movement of the two locking steel columns 33 are provided in the locking cavity.

In this application embodiment, the locking cavity is equipped with the third opening, actuating lever 31 passes through the third opening stretches into in the locking cavity.

In this application embodiment, be equipped with first connecting portion in the locking cavity, actuating lever 31 passes through first connecting portion with the locking cavity is connected and for the locking cavity removes. The drive rod 31 can be provided with a screw rod, the drive rod 31 is provided with an external thread, and the first connecting part is an internal thread matched with the external thread.

In the embodiment of the present application, the second lock body 2 includes a limiting portion 21 and a clamping portion 22, the clamping portion 22 passes through the opening stretches into the inner cavity, the limiting portion 21 and the open end of the inner cavity are connected.

In this embodiment, the second lock body 2 is provided with a guiding portion 221, and the guiding portion 221 is formed by gradually tapering the outer wall of the clamping portion 22 inward. The guiding portion 221 may be as shown in fig. 1, and the bottom of the clamping portion 22 is a triangular prism with an inward cut-off outer wall and is disposed in an inclined plane, or may be disposed in a tapered arc plane. This design has been solved among the prior art and has been traded electric in-process battery and vehicle and can have certain position difference, leads to the unable problem of normal installation of battery, has designed guide part 221 at the lock body front end, can absorb the deviation.

The locking device provided by the embodiment of the application is small in structure, can meet the installation requirements of lateral and Z-direction modes, has small influence on vehicles and batteries, and is high in compatibility.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. The locking device for battery replacement is characterized by comprising a first lock body (1), a second lock body (2) and a locking mechanism;

the locking mechanism comprises a driving rod (31), an ejection steel column (32) and two locking steel columns (33);

the second lock body is provided with a locking cavity matched with the locking mechanism, and the ejection steel column (32) and the two locking steel columns (33) are arranged in the locking cavity;

the locking cavity is provided with a first opening (4) and a second opening (5) opposite to the first opening (4);

the second lock body (2) can extend into the first lock body (1), and the driving rod (31) can extend into the locking cavity to control the position of the ejection steel column (32);

the driving rod (31) enables the two locking steel columns (33) to be respectively ejected out of the first opening (4) and the second opening (5) by the ejection steel columns (32) through controlling the positions of the ejection steel columns (32) to be clamped with the inner wall of the first lock body (1) to realize locking; or the driving rod (31) enables the two locking steel columns (33) to be kept in the second lock body (2) to realize unlocking by controlling the positions of the ejection steel columns (32).

2. The locking device for battery replacement as claimed in claim 1, wherein one end of the driving rod (31) is arranged outside the locking cavity, and the other end of the driving rod (31) extends into the locking cavity and is connected with the ejection steel column (32); the side surfaces of the ejection steel columns (32) are tangent to the side surfaces of the two locking steel columns (33) respectively in a locking state.

3. The locking device for battery replacement as claimed in claim 2, wherein a space for longitudinal movement of the ejection steel columns (32) and a space for transverse movement of the two locking steel columns (33) are provided in the locking cavity.

4. The locking device for battery replacement as claimed in claim 1, wherein the locking cavity is provided with a third opening, and the driving rod (31) extends into the locking cavity through the third opening.

5. The locking device for battery replacement as claimed in claim 4, wherein a first connection portion is provided in the locking cavity, and the driving rod (31) is connected with the locking cavity through the first connection portion and moves relative to the locking cavity.

6. The locking device for battery replacement as claimed in claim 5, wherein the driving rod (31) is provided with an external thread, and the first connecting portion is an internal thread matched with the external thread.

7. The locking device for battery replacement as claimed in claim 1, wherein the first lock body (1) is provided with an opening and an inner cavity, and the second lock body (2) extends into the inner cavity through the opening.

8. The locking device for battery replacement as claimed in claim 7, wherein the second lock body (2) comprises a limiting portion (21) and a clamping portion (22), the clamping portion (22) extends into the inner cavity through the opening, and the limiting portion (21) is connected with the opening end of the inner cavity.

9. The locking device for battery replacement as claimed in claim 8, wherein the second lock body (2) is provided with a guide portion (221) which is formed by gradually tapering an outer wall of the clamping portion (22) inwards.

10. A vehicle comprising a locking device for battery replacement as claimed in any one of claims 1 to 9.