阅读说明：本技术 电池及连接器组件 (Battery and connector assembly ) 是由 贾剑飞 游祥龙 于 2018-09-11 设计创作，主要内容包括：本发明涉及电池及连接器组件,连接器组件包括分别用于与电池模组的正极、负极导电连接的正极盒体、负极盒体,所述正极盒体和负极盒体上分别设有正极盒盖和负极盒盖,正极盒体、负极盒体内分别设有与正极盒体、负极盒体导电连接的正极连接端子、负极连接端子正极盒体上设有用于识别正极连接端子的正极端子识别块、用于识别负极连接端子的负极端子识别块,正极连接端子包括用于与正极端子识别块相互错开以允许正极连接端子上的端子连接孔与正极盒体上的盒体连接孔对正的正极盒体识别块,所述正极端子识别块用于在负极连接端子插入正极盒体内时与负极盒体识别块挡止配合以阻止负极连接端子的端子连接孔与正极盒体的盒体连接孔对正。(The invention relates to a battery and a connector assembly, wherein the connector assembly comprises a positive box body and a negative box body which are respectively used for being in conductive connection with a positive electrode and a negative electrode of a battery module, a positive box cover and a negative box cover are respectively arranged on the positive box body and the negative box body, a positive connecting terminal which is in conductive connection with the positive box body and the negative box body is respectively arranged in the positive box body and the negative box body, a positive terminal identification block for identifying the positive connecting terminal and a negative terminal identification block for identifying the negative connecting terminal are arranged on the positive box body of the negative connecting terminal, the positive connecting terminal comprises a positive box body identification block which is staggered with the positive terminal identification block to allow a terminal connecting hole on the positive connecting terminal to be aligned with a box body connecting hole on the positive box body, and the positive terminal identification block is matched with the negative box body identification block to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box body connecting hole And (6) aligning.)

1. The battery comprises a box body and a battery module arranged in the box body, wherein the box body is provided with a positive box body and a negative box body which are respectively in conductive connection with a positive electrode and a negative electrode of the battery module, the positive box body and the negative box body are respectively provided with a positive box cover and a negative box cover, the positive box body and the negative box body are respectively internally provided with a positive connecting terminal and a negative connecting terminal which are respectively in conductive connection with the positive box body and the negative box body, the positive box body and the negative box body are respectively provided with a box body perforation for inserting the corresponding connecting terminal, the battery is characterized in that the positive box body and the negative box body are respectively provided with a positive terminal identification block for identifying the positive connecting terminal and a negative terminal identification block for identifying the negative connecting terminal, the positive connecting terminal comprises a positive box body identification block which is staggered with the positive terminal identification block to allow a terminal connecting hole on the, the negative connecting terminal comprises a negative terminal identification block which is used for staggering with the negative terminal identification block to allow a terminal connecting hole on the negative connecting terminal to be aligned with a box connecting hole on the negative box body, the positive terminal identification block is used for being matched with the negative terminal identification block in a blocking mode to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box connecting hole of the positive box body when the negative connecting terminal is inserted into the positive box body, and the negative terminal identification block is used for being matched with the negative terminal identification block in a blocking mode to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box connecting hole of the negative box body when the negative connecting terminal is inserted into the.

2. The battery according to claim 1, wherein the positive and negative connection terminals are defined to have ends for connection to the lead wires as tail ends, and the positive and negative case identification blocks are respectively provided on end faces of the positive and negative connection terminals opposite to the tail ends.

3. The battery according to claim 1 or 2, wherein the positive terminal identification block and the negative terminal identification block are respectively provided to protrude from the bottom walls of the positive case and the negative case.

4. The battery according to claim 1 or 2, wherein the positive connecting terminal comprises a positive connecting terminal body, the negative connecting terminal comprises a negative connecting terminal body, and the positive connecting terminal and the negative connecting terminal are respectively provided with a positive positioning surface and a negative positioning surface which are matched with the positive box body identification block and the negative box body identification block in a positioning way, one part of the positive positioning surface is positioned on the positive box body identification block, and the other part of the positive positioning surface is positioned on the positive connecting terminal body; one part of the negative positioning surface is positioned on the negative box body identification block, and the other part of the negative positioning surface is positioned on the negative connecting terminal body.

5. The battery according to claim 1 or 2, wherein the positive electrode case and the negative electrode case are detachably connected to the case.

6. The connector assembly comprises a positive box body and a negative box body which are respectively used for being in conductive connection with a positive electrode and a negative electrode of a battery module, wherein the positive box body and the negative box body are respectively provided with a positive box cover and a negative box cover, the positive box body and the negative box body are respectively internally provided with a positive connecting terminal and a negative connecting terminal which are respectively used for being in conductive connection with the positive box body and the negative box body, the positive box body and the negative box body are respectively provided with a box body perforation for inserting the corresponding connecting terminal, the connector assembly is characterized in that the positive box body and the negative box body are respectively provided with a positive terminal identification block for identifying the positive connecting terminal and a negative terminal identification block for identifying the negative connecting terminal, the positive connecting terminal comprises a positive box body identification block which is staggered with the positive terminal identification block to allow a terminal connecting hole on the positive connecting terminal to, the negative connecting terminal comprises a negative terminal identification block which is used for staggering with the negative terminal identification block to allow a terminal connecting hole on the negative connecting terminal to be aligned with a box connecting hole on the negative box body, the positive terminal identification block is used for being matched with the negative terminal identification block in a blocking mode to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box connecting hole of the positive box body when the negative connecting terminal is inserted into the positive box body, and the negative terminal identification block is used for being matched with the negative terminal identification block in a blocking mode to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box connecting hole of the negative box body when the negative connecting terminal is inserted into the.

7. The connector assembly as set forth in claim 6, wherein the positive and negative connection terminals are defined to have ends for connection to the lead wires as tail ends, and the positive and negative case identification blocks are respectively provided on end faces of the positive and negative connection terminals opposite to the tail ends.

8. The connector assembly according to claim 6 or 7, wherein the positive terminal identification block and the negative terminal identification block are respectively protruded on the bottom walls of the positive box body and the negative box body.

9. The connector assembly according to claim 6 or 7, wherein the positive connecting terminal comprises a positive connecting terminal body, the negative connecting terminal comprises a negative connecting terminal body, and the positive connecting terminal and the negative connecting terminal are respectively provided with a positive positioning surface and a negative positioning surface which are matched with the positive box body identification block and the negative box body identification block in a positioning way, and a part of the positive positioning surface is positioned on the positive box body identification block; the other part is positioned on the positive connecting terminal body, one part of the negative positioning surface is positioned on the negative box body identification block, and the other part is positioned on the negative connecting terminal body.

Technical Field

The invention relates to a battery and connector assembly.

Background

With the increasing demand and market reserve of new energy vehicles, the safety problem of new energy vehicles also becomes the focus of attention of people. The main energy source of the new energy automobile is electric energy, and a plurality of batteries are connected in series and in parallel to provide power for the automobile. The series and parallel connection between the batteries is realized by high-voltage connection terminals, and the reliability of the electrical connection is related to the safety of the vehicle.

The existing high-voltage connecting terminal of the electric automobile can be connected in two connection modes by using a bolt connection mode and a quick-plug connector. The former has high reliability and low cost, and is mainly applied to passenger cars; the latter is convenient to operate and is mainly applied to passenger cars. Because the batteries of the passenger car are few, the high-voltage connecting terminals are also few, the mistake proofing can be realized by adopting a key position mode of the quick-plug connector, the passenger car generally has more than 4 batteries, and the batteries are connected by bolts in consideration of cost and reliability.

As shown in fig. 1, the battery includes a case 1, an anode case 6 and a cathode case 3 are disposed on the case 1, an anode case cover (not shown) and a cathode case cover 2 are disposed on the anode case 6 and the cathode case 3, and an anode connection terminal 4 and a cathode connection terminal electrically connected to the anode case 6 and the cathode case 3 are disposed in the anode case 6 and the cathode case 3, respectively. The structure of the positive pole box body 6 is the same as that of the negative pole box body 3, the positive pole connecting terminal 4 is the same as that of the negative pole connecting terminal, and the positive pole box cover 2, wherein the positive pole box body 6, the positive pole connecting terminal 4 and the positive pole box cover are taken as examples for explanation, the box body perforation 7 for the positive pole connecting terminal 4 to be inserted is arranged on the positive pole box body 6, the terminal connecting hole is arranged on the positive pole connecting terminal 4, the box body connecting hole is arranged on the positive pole box body 6, the box body connecting hole is a threaded hole, and the terminal connecting. When the positive connecting terminal 4 is conductively connected with the positive box body 6, the positive box cover is taken down firstly, then the terminal connecting hole of the positive connecting terminal 4 is aligned with the box body connecting hole of the positive box body 6, and then the terminal connecting bolt 5 passes through the aligned terminal connecting hole and the box body connecting hole to connect and fix the positive connecting terminal 4 in the positive box body 6. Wherein the box body connecting hole of the positive box body 6 is conductively connected with the positive pole lug of the battery module, and the positive pole lug of the battery module is conductively connected with the positive pole connecting terminal 4 through the positive box body 6. Because the terminal connecting bolt is the standard part, and positive connecting terminal, negative connecting terminal are the standard part too, consequently, the connection between positive connecting terminal, negative connecting terminal and positive box body, the negative pole box body is mainly distinguished by the sign, in actual operation, can appear positive connecting terminal and negative pole box body, negative connecting terminal and the condition of anodal box body misconnection to make the battery of connecting through positive connecting terminal, negative connecting terminal appear short circuit, safety problems such as ablation. Therefore, it is important to prevent a mistake between the positive connection terminal and the negative connection terminal.

Disclosure of Invention

The invention aims to provide a battery, which aims to solve the safety problems of battery short circuit, ablation and the like caused by the fact that a positive connecting terminal and a negative connecting terminal on the battery are respectively connected with a negative box body and a positive box body in the prior art; it is also an object of the present invention to provide a connector assembly that solves the above problems.

The battery adopts the following technical scheme:

the battery comprises a box body and a battery module arranged in the box body, wherein the box body is provided with an anode box body and a cathode box body which are respectively in conductive connection with the anode and the cathode of the battery module, the anode box body and the cathode box body are respectively provided with an anode box cover and a cathode box cover, the anode box body and the cathode box body are respectively in conductive connection with the anode box body and the cathode box body so as to enable the anode lug and the cathode lug of the battery module to be respectively in conductive connection with an anode lead and a cathode lead, the anode box body and the cathode box body are respectively provided with an anode connecting terminal identification block and a cathode terminal identification block, the cathode box body and the anode box body are respectively provided with a box body perforation for inserting the corresponding connecting terminals, the anode connecting terminals and the cathode connecting terminals are respectively identified, and the anode connecting terminals comprise anode terminal identification blocks which are mutually staggered so as to allow the terminal connecting holes on the anode connecting terminals to be aligned with the box The positive pole box body recognition block is used for being mutually staggered with the negative pole terminal recognition block to allow a terminal connecting hole on the negative pole connecting terminal to be aligned with a box body connecting hole on the negative pole box body, the positive pole terminal recognition block is used for being in stop fit with the negative pole box body recognition block when the negative pole connecting terminal is inserted into the positive pole box body to prevent the terminal connecting hole of the negative pole connecting terminal from being aligned with the box body connecting hole of the positive pole box body, and the negative pole terminal recognition block is used for being in stop fit with the negative pole box body recognition block to prevent the terminal connecting hole of the negative pole connecting terminal from being aligned with the box body connecting hole of the negative pole box body when the negative.

The invention has the beneficial effects that: the positive terminal identification block and the positive box body identification block which are staggered with each other allow the terminal connecting hole of the positive connecting terminal to be aligned with the box body connecting hole of the positive box body, and are in stop fit with the negative box body identification block when the negative connecting terminal is inserted into the positive box body so as to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box body connecting hole of the positive box body; similarly, the staggered negative terminal identification block and the negative box body identification block allow the terminal connecting hole of the negative connecting terminal to be aligned with the box body connecting hole of the negative box body, and are in stop fit with the positive box body identification block when the positive connecting terminal is inserted into the negative box body so as to prevent the terminal connecting hole of the positive connecting terminal from being aligned with the box body connecting hole of the negative box body; therefore, the positive connecting terminal can only be connected with the positive box body, the negative connecting terminal can only be connected with the negative box body, and the positive connecting terminal and the negative connecting terminal are prevented from being mistakenly connected in the negative box body and the positive box body. The battery safety problems of battery short circuit, ablation and the like caused by the fact that the positive connecting terminal and the negative connecting terminal of the battery are connected with the negative box body and the positive box body in error in the prior art are solved.

For saving the cost, the positive connecting terminal, the one end that is used for being connected with the wire on the negative connecting terminal of this scheme definition is the tail end, and positive box body discernment piece, negative pole box body discernment piece set up respectively on positive connecting terminal, the negative connecting terminal and on the head end terminal surface relative with the tail end. The sizes of the left and right directions of the anode connecting terminal and the cathode connecting terminal are not changed, so that the sizes of the perforated holes of the original anode box body and the cathode box body are not changed, and the design and processing cost is saved.

In order to ensure the structural strength of the positive terminal identification block and the negative terminal identification block, the positive terminal identification block and the negative terminal identification block are respectively convexly arranged on the bottom walls of the positive box body and the negative box body.

In order to facilitate the positioning of the positive connecting terminal and the negative connecting terminal in the positive box body and the negative box body, the positive connecting terminal comprises a positive connecting terminal body, the negative connecting terminal comprises a negative connecting terminal body, the positive connecting terminal and the negative connecting terminal are respectively provided with a positive positioning surface and a negative positioning surface which are matched with the positive box body identification block and the negative box body identification block in a positioning way, one part of the positive positioning surface is positioned on the positive box body identification block, and the other part of the positive positioning surface is positioned on the positive connecting terminal body; one part of the negative positioning surface is positioned on the negative box body identification block, and the other part of the negative positioning surface is positioned on the negative connecting terminal body.

For the change of making things convenient for anodal box body, negative pole box body, in this scheme anodal box body, negative pole box body all with box releasable connection.

The connector assembly adopts the following technical scheme:

the connector assembly comprises an anode box body and a cathode box body which are respectively used for being conductively connected with the anode and the cathode of the battery module, the anode box body and the cathode box body are respectively provided with an anode box cover and a cathode box cover, the anode box body and the cathode box body are respectively internally provided with an anode connecting terminal and a cathode connecting terminal which are respectively conductively connected with the anode box body and the cathode box body, the anode box body and the cathode box body are respectively provided with a box body perforation for inserting the corresponding connecting terminal, the anode box body and the cathode box body are respectively provided with an anode terminal identification block for identifying the anode connecting terminal and a cathode terminal identification block for identifying the cathode connecting terminal, the anode connecting terminal comprises a cathode box body identification block which is staggered with the anode terminal identification block to allow the terminal connecting hole on the anode connecting terminal to be aligned with the box body connecting hole on the anode box body, and the cathode connecting terminal comprises a cathode box body identification block which is staggered with The negative pole box body recognition block is aligned with the box body connecting hole in the negative pole box body, the positive pole terminal recognition block is used for being matched with the negative pole box body recognition block in a blocking mode to prevent the terminal connecting hole of the negative pole connecting terminal from being aligned with the box body connecting hole of the positive pole box body when the negative pole connecting terminal is inserted into the positive pole box body, and the negative pole terminal recognition block is used for being matched with the negative pole box body recognition block in a blocking mode to prevent the terminal connecting hole of the negative pole connecting terminal from being aligned with the box body connecting hole of the negative pole box body when.

The invention has the beneficial effects that: the positive terminal identification block and the positive box body identification block which are staggered with each other allow the terminal connecting hole of the positive connecting terminal to be aligned with the box body connecting hole of the positive box body, and are in stop fit with the negative box body identification block when the negative connecting terminal is inserted into the positive box body so as to prevent the terminal connecting hole of the negative connecting terminal from being aligned with the box body connecting hole of the positive box body; similarly, the staggered negative terminal identification block and the negative box body identification block allow the terminal connecting hole of the negative connecting terminal to be aligned with the box body connecting hole of the negative box body, and are in stop fit with the positive box body identification block when the positive connecting terminal is inserted into the negative box body so as to prevent the terminal connecting hole of the positive connecting terminal from being aligned with the box body connecting hole of the negative box body; therefore, the positive connecting terminal can only be connected with the positive box body, the negative connecting terminal can only be connected with the negative box body, and the positive connecting terminal and the negative connecting terminal are prevented from being mistakenly connected in the negative box body and the positive box body. The battery safety problems of battery short circuit, ablation and the like caused by the fact that the positive connecting terminal and the negative connecting terminal of the battery are connected with the negative box body and the positive box body in error in the prior art are solved.

For saving the cost, the positive connecting terminal, the one end that is used for being connected with the wire on the negative connecting terminal of this scheme definition is the tail end, and positive box body discernment piece, negative pole box body discernment piece set up respectively on positive connecting terminal, the negative connecting terminal and on the head end terminal surface relative with the tail end. The sizes of the left and right directions of the anode connecting terminal and the cathode connecting terminal are not changed, so that the sizes of the perforated holes of the original anode box body and the cathode box body are not changed, and the design and processing cost is saved.

In order to ensure the structural strength of the positive terminal identification block and the negative terminal identification block, the positive terminal identification block and the negative terminal identification block are respectively convexly arranged on the bottom walls of the positive box body and the negative box body.

In order to facilitate the positioning of the positive connecting terminal and the negative connecting terminal in the positive box body and the negative box body, the positive connecting terminal comprises a positive connecting terminal body, the negative connecting terminal comprises a negative connecting terminal body, the positive connecting terminal and the negative connecting terminal are respectively provided with a positive positioning surface and a negative positioning surface which are matched with the positive box body identification block and the negative box body identification block in a positioning way, one part of the positive positioning surface is positioned on the positive box body identification block, and the other part of the positive positioning surface is positioned on the positive connecting terminal body; one part of the negative positioning surface is positioned on the negative box body identification block, and the other part of the negative positioning surface is positioned on the negative connecting terminal body.

For the change of making things convenient for anodal box body, negative pole box body, in this scheme anodal box body, negative pole box body all with box releasable connection.

Drawings

Fig. 1 is a partial structural view of a battery in the prior art;

fig. 2 is a partial structural view of a battery according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural diagram of the positive cartridge in FIG. 2;

FIG. 4 is a diagram showing a connection state between the positive connection terminal and the positive case of FIG. 2;

fig. 5 is a diagram showing a state where the negative connection terminal and the positive case are erroneously connected in embodiment 1 of the battery of the present invention;

fig. 6 is a diagram showing a connection state of a positive electrode connection terminal and a positive electrode case in embodiment 2 of the battery of the present invention;

fig. 7 is a diagram showing a state of connection between the negative electrode connection terminal and the negative electrode case in embodiment 2 of the battery of the invention.

In the figure: 1-case, 2-negative-pole-case-cover, 3-negative-pole-case, 4-positive-pole-connection-terminal, 5-terminal-connection-bolt, 6-positive-pole-case, 7-case-perforation, 10-positive-pole-case, 11-positive-pole-connection-terminal, 12-positive-pole-case-identification-block, 13-positive-pole-terminal-identification-block, 14-positive-pole-terminal-connection-hole, 15-positive-pole-case-connection-hole, 16-negative-pole-connection-terminal, 17-negative-pole-case-identification-block, 18-case-perforation, 19-positive-pole-connection-terminal-body, 20-negative-pole-case, 21-positive-pole-case, 22-positive-pole-connection-terminal-body, 23-positive-pole-case-identification-block, 24-positive, 28-negative terminal identification block, 29-negative terminal body, 100-box, 101-positive pole lug, 102-positive pole connecting copper bar, 103-positive pole, 104-battery module, 161-negative terminal connecting hole.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In embodiment 1 of the battery of the present invention, as shown in fig. 2 and 3, the battery includes a case 100 and a battery module 104 disposed in the case 100, and the case 100 is provided with a positive case 10 and a negative case 20 electrically connected to a positive electrode and a negative electrode of the battery module 104, respectively. The positive electrode box 10 in this embodiment is electrically connected to the positive electrode post 103 of the battery module 104 through the positive electrode connecting copper bar 102, and the negative electrode box 20 is electrically connected to the negative electrode post (not shown) of the battery module 104 through the negative electrode connecting copper bar. In addition, the positive electrode case body 10 and the negative electrode case body 20 are respectively provided with a positive electrode case cover and a negative electrode case cover. The positive electrode case 10 and the negative electrode case 20 are provided therein with a positive electrode connection terminal 11 shown in fig. 4 and a negative electrode connection terminal 16 shown in fig. 5, which are electrically connected to the positive electrode case 10 and the negative electrode case 20, respectively. As shown in fig. 2 and 3, the positive box 10 is provided with a positive L-shaped connecting plate, a vertical portion of the positive L-shaped connecting plate extends out of the positive box 10 and extends into the box 100, and the vertical portion of the positive L-shaped connecting plate is used as a positive tab 101 electrically connected with a positive connecting copper bar 102; the horizontal portion of the positive electrode L-shaped connecting plate is fixed in the positive electrode case 10, and is provided with a positive electrode case connecting hole 15 for electrically connecting with the positive electrode connecting terminal 11. The positive electrode case connecting hole 15 of the positive electrode case 10 is connected to the positive electrode connecting terminal 11 by a terminal connecting bolt, and the positive electrode case connecting hole 15 is a threaded hole. The same as the positive electrode box body 10, the negative electrode box body 20 is provided with a negative electrode L-shaped connecting plate, the vertical part of the negative electrode L-shaped connecting plate extends out of the outer side of the negative electrode box body 20 and extends into the inner side of the box body 100, the vertical part of the positive electrode L-shaped connecting plate is used as a negative electrode lug which is in conductive connection with the negative electrode connecting copper bar, the horizontal part of the positive electrode L-shaped connecting plate is fixed in the negative electrode box body 20, and the horizontal part is provided with a negative electrode box body connecting hole which is in conductive connection. The negative electrode case connection hole of the negative electrode case 20 is connected to the negative electrode connection terminal 16 by a terminal connection bolt.

As shown in fig. 4, the positive electrode case 10 is provided with a case penetration hole 18 into which the positive electrode connection terminal 11 is inserted, and the positive electrode case 10 is provided with a positive electrode terminal identification block 13 for identifying the positive electrode connection terminal 11. The positive connection terminal 11 includes a positive connection terminal body 19 and a positive case identification block 12 for being offset from the positive terminal identification block 13 to allow the positive terminal connection hole 14 on the positive connection terminal 11 to be aligned with the positive case connection hole 15 on the positive case 10. Like the positive electrode case 10, the negative electrode case 20 is provided with a case perforation hole into which the negative electrode connection terminal 16 is inserted, and the negative electrode case 20 is further provided with a negative electrode terminal identification block for identifying the negative electrode connection terminal 16. As shown in fig. 5, the negative connection terminal 16 includes a negative connection terminal body 29 and a negative case identification block 17 for being offset from the negative terminal identification block to allow the negative terminal connection hole 161 on the negative connection terminal 16 to be aligned with the negative case connection hole on the negative case 20. The positive terminal identification block 13 is adapted to be in stop-fit with the negative case identification block 17 when the negative connection terminal 16 is inserted into the positive case 10 to prevent the negative terminal connection hole 161 of the negative connection terminal 16 from being aligned with the positive case connection hole 15 of the positive case 10. Accordingly, the negative terminal identification block is adapted to be in stop-fit with the negative case identification block 17 when the negative connection terminal 16 is inserted into the negative case 20 to prevent the negative terminal connection hole 161 of the negative connection terminal 16 from being aligned with the negative case connection hole of the negative case 20.

When the positive connection terminal 11 and the negative connection terminal 16 are respectively in conductive connection with the positive box body 10 and the negative box body 20, the positive terminal identification block 13 and the positive box body identification block 12 which are mutually staggered allow the positive terminal connection hole 14 of the positive connection terminal 11 to be aligned with the positive box body connection hole 15 of the positive box body 10, and stop fit with the positive terminal identification block 13 when the negative connection terminal 16 is inserted into the positive box body 10 to prevent the negative terminal connection hole 161 of the negative connection terminal 16 from being aligned with the positive box body connection hole 15 of the positive box body 10; similarly, the staggered negative terminal identification blocks and negative case identification 17 allow the negative terminal connection hole 161 of the negative connection terminal 16 to align with the negative case connection hole of the negative case 20, and stop and cooperate with the negative terminal identification blocks to prevent the positive terminal connection hole 14 of the positive connection terminal 11 from aligning with the negative case connection hole of the negative case 20 when the positive connection terminal 11 is inserted into the negative case 20; therefore, the positive connecting terminal 11 can only be connected with the positive box body 10, the negative connecting terminal 16 can only be connected with the negative box body 20, and the positive connecting terminal 11 and the negative connecting terminal 16 are prevented from being mistakenly connected in the negative box body 20 and the positive box body 10. The battery safety problems of battery short circuit, ablation and the like caused by the fact that the positive connecting terminal and the negative connecting terminal of the battery are connected with the negative box body and the positive box body in error in the prior art are solved.

As shown in fig. 4 and 5, when the ends of the positive connection terminal 11 and the negative connection terminal 16, which are connected to the wires, are defined as tail ends, the positive cartridge identification block 12 and the negative cartridge identification block 17 are respectively disposed on the head end surfaces of the positive connection terminal 11 and the negative connection terminal 16, which are opposite to the tail ends, and the positive cartridge identification block 12 and the negative cartridge identification block 17 are respectively disposed at different sides of the left and right directions of the positive connection terminal 11 and the negative connection terminal 16. Therefore, the left and right dimensions of the positive connecting terminal 11 and the negative connecting terminal 16 are the same as the width dimensions of the existing standard connecting terminal, so that the perforation dimensions of the original positive box body and the negative box body are not required to be changed, and the design and processing cost is saved. In addition, the positive electrode cartridge identification block 12 and the negative electrode cartridge identification block 17 in this embodiment are both rectangular blocks, and the positive electrode terminal identification block 13 and the negative electrode terminal identification block are also rectangular blocks. It should be noted that the positive connection terminal 11 and the negative connection terminal 16 in this embodiment are respectively provided with a positive positioning surface and a negative positioning surface which are matched with the positive terminal identification block 13 and the negative terminal identification block in a positioning manner, wherein a part of the positive positioning surface is arranged on the end surface of the head end of the positive connection terminal body 19, and the other part is arranged on one side surface of the positive box identification block 12; the negative electrode positioning surface is provided partially on the tip end surface of the negative electrode connecting terminal body 29 and partially on one of the side surfaces of the negative electrode case identification block 17. The positioning of the positive and negative connection terminals 11 and 16 in the positive and negative cases 10 and 20 is facilitated.

In order to ensure the structural strength of the positive terminal identification block 13 and the negative terminal identification block, the positive terminal identification block 13 and the negative terminal identification block in the present embodiment are respectively protruded on the bottom walls of the positive box body 10 and the negative box body 20. In other embodiments, the positive electrode cartridge identification block and the negative electrode cartridge identification block may be respectively disposed on one side of the positive electrode connection terminal and the negative electrode connection terminal in the left-right direction; the positive terminal identification block and the negative terminal identification block can also be arranged on the side walls of the positive box body and the negative box body. The positive electrode box body 10, the positive electrode box cover, the positive electrode connecting terminal 11, the negative electrode box body 20, the negative electrode box cover and the negative electrode connecting terminal 16 form a connector assembly for electrically connecting the battery with a vehicle or electrically connecting more than two batteries. It should be noted that the positive electrode case 10 and the negative electrode case 20 in this embodiment are detachably fixed to the case 100, and in other embodiments, the positive electrode case, the negative electrode case, and the case may be an integrated structure.

In embodiment 2 of the battery according to the present invention, as shown in fig. 6 and 7, the positive electrode case identification block 23 in this embodiment is of an ear-like structure and is disposed at the corners of the head end and the right side of the positive electrode connection terminal body 22, the negative electrode case identification block 27 is also of an ear-like structure and is disposed at the corners of the head end and the left side of the negative electrode connection terminal body 26, and the positive electrode terminal identification block 24 and the negative electrode terminal identification block 28 are of rectangular block-like structures respectively disposed on the bottom walls of the positive electrode case 21 and the negative electrode case 25. As can be seen from fig. 4 and 5, there is no positioning fit between the positive connection terminal and the positive terminal identification block 24, and between the negative connection terminal and the negative terminal identification block 28. In other embodiments, the positive electrode box body identification block and the negative electrode box body identification block can also be in other shapes such as triangle, rhombus and the like; the positive terminal identification block and the negative terminal identification block can also be in other shapes such as triangle, rhombus and the like.

On the basis of the existing connector assembly, a positive box body identification block and a negative box body identification block are respectively arranged on a positive connecting terminal and a negative connecting terminal, and a positive terminal identification block and a negative terminal identification block are respectively arranged on a positive box body and a negative box body, so that the connection error-proofing function between the positive pole and the negative pole is realized, the realization is convenient, and the cost is not basically increased after batch production. The problem of the wrong incident that takes place of connector assembly positive negative pole that causes of maloperation is solved.

In the specific embodiment of the connector assembly of the present invention, the structure of the connector assembly in this embodiment is the same as that of the connector assembly described in the above specific embodiment of the battery, and details are not repeated.