CN220483877U - Tray - Google Patents

Abstract

The utility model relates to the technical field of battery production equipment and discloses a tray, which is suitable for a battery top cover with pins, wherein the tray comprises a tray body, the tray body is provided with a first side surface, a plurality of first accommodating grooves arranged along a first direction are formed in the first side surface, and the first accommodating grooves are used for accommodating the battery top cover; the bottom surface of the first accommodating groove is provided with a second accommodating groove which is used for accommodating pins. Because the second accommodation groove sets up the groove bottom surface in first accommodation groove, so the second accommodation groove can not occupy the position on the first side for the first side can set up more first accommodation groove, and the volume utilization of tray is high.

Description

Tray

Technical Field

The utility model relates to the technical field of battery production equipment, in particular to a tray.

Background

The battery top cover is a key component of the power battery, and in order to ensure high power output of the power battery, the power battery top cover usually adopts a structure with pins, wherein the pins are used as electric connectors for connecting an internal electric core and an external circuit of the power battery.

In practical application, a battery top cover is carried to a production station through a tray to participate in a production process of a power battery, as shown in a plastic sucking disc for a battery top cover disclosed in patent publication number CN212333270U, a plastic sucking disc main body and a mounting groove arranged on the plastic sucking disc main body are disclosed in the tray of the prior art, wherein the mounting groove is used for accommodating the battery top cover, but the plastic sucking disc with the structure cannot carry the battery top cover with pins, and for the tray capable of carrying the battery top cover with pins, a groove body for accommodating the pins and the mounting groove are arranged on the same side of the tray, the groove body is arranged on one side of the mounting groove and is communicated with the mounting groove, and the position of the groove body for accommodating a single battery top cover and the mounting groove occupying the side is relatively large, so that the volume utilization rate of the tray is relatively low.

Disclosure of Invention

The purpose of the utility model is that: a tray with high volume utilization rate is provided.

In order to achieve the above object, the present utility model provides a tray adapted for a battery top cover with pins, the tray having a first direction, comprising:

the tray body is provided with a first side surface, a plurality of first accommodating grooves are formed in the first side surface, and the first accommodating grooves are used for accommodating the battery top cover; the bottom surface of the first accommodating groove is provided with a second accommodating groove which is used for accommodating pins.

In a particular embodiment of the utility model, the tray further has a second direction, the first direction intersecting the second direction; the pin comprises a first section body, a bending section body and a second section body which are arranged along the direction deviating from the battery top cover, wherein the first section body is connected with the battery top cover, and the bending section body is connected with the first section body and the second section body;

the first accommodating groove is used for limiting the position of the battery top cover; the second accommodating groove comprises a first groove part and a second groove part which are arranged along the second direction and communicated with each other, and the first groove part is communicated with the first accommodating groove; the first groove portion has a size greater than a size of the second groove portion along the first direction; the first groove part is used for accommodating the first section body and the bending section body of the pin, and the second groove part is used for accommodating the second section body of the pin and is of a profiling structure matched with the second section body of the pin.

In a specific embodiment of the present utility model, the first groove portion includes a first groove wall surface and a second groove wall surface that connect the first accommodating groove and the second groove portion, the first groove wall surface and the second groove wall surface being arranged along the first direction;

the first groove wall surface is perpendicular to the first direction;

the second groove wall surface comprises a first limiting surface and a second limiting surface which are mutually connected, the first limiting surface is perpendicular to the first direction, one end of the first limiting surface is connected with the first accommodating groove, one end of the second limiting surface, which is far away from the first limiting surface, is connected with the second groove part, and the extending direction of the second limiting surface from the first limiting surface to the second groove part is obliquely crossed with the second direction; the first limiting surface is used for being abutted against the first section body of the pin, and the second limiting surface is used for being abutted against the bending section body of the pin.

In a specific embodiment of the present utility model, the first groove portion includes a first groove wall surface and a second groove wall surface that connect the first accommodating groove and the second groove portion, and the first groove wall surface and the second groove wall surface are arranged along the first direction and are both perpendicular to the first direction.

In a specific embodiment of the present utility model, the first side surface is further provided with an avoidance groove, both ends of the first accommodating groove along the first direction are provided with the avoidance groove, and one end of the avoidance groove along the first direction is an open end which is conducted with the corresponding first accommodating groove.

In a specific embodiment of the present utility model, the avoiding grooves between two adjacent first accommodating grooves are communicated with each other along the first direction.

In a particular embodiment of the utility model, the tray further has a third direction, the third direction intersecting the first direction;

the first accommodating grooves are arranged in a row along the first direction, and at least two rows of first accommodating grooves are formed in the first side face along the third direction.

In a specific embodiment of the present utility model, the tray further comprises:

the fool-proof protruding parts are arranged on the first side face and correspond to the first accommodating grooves one by one; the fool-proof protruding portion and the first accommodating groove are correspondingly arranged in the fool-proof protruding portion and the first accommodating groove along the first direction.

In a specific embodiment of the present utility model, the first accommodating groove is rectangular in shape, and the fool-proof protruding portion includes a positive electrode fool-proof protrusion and a negative electrode fool-proof protrusion; the positive electrode fool-proof bulge and the negative electrode fool-proof bulge are respectively corresponding to the positions of the two ends of the first accommodating groove in the length direction.

In a specific embodiment of the present utility model, the tray body further has a cavity and a second side facing away from the first side, wherein an end of the cavity away from the first side is an open end extending onto the second side, the cavity has a cavity bottom surface and a cavity wall surface that are connected to each other, and an end of the cavity wall surface away from the cavity bottom surface encloses the open end;

the tray further comprises:

the forming bulge comprises a first forming part and a second forming part which are connected with each other, the first forming part is arranged on the bottom surface of the cavity, the forming bulge is provided with a plurality of forming bulges and corresponds to the first accommodating grooves one by one, the first accommodating grooves are arranged in the first forming part, and the second accommodating grooves are arranged in the second forming part.

Compared with the prior art, the tray has the beneficial effects that:

in practical application, when a battery top cover with pins is required to be placed on the tray, the pins are inserted into the second accommodating grooves through the first accommodating grooves, then the battery top cover is inserted into the first accommodating grooves, and the battery top cover with the pins is placed on the tray based on the first accommodating grooves. And because the second accommodation groove sets up the groove bottom surface in first accommodation groove, so the second accommodation groove can not occupy the position on the first side for the first side can set up more first accommodation groove, and the volume utilization ratio of tray is high.

Drawings

Fig. 1 is a block diagram of a battery top cover with pins according to an embodiment of the present utility model;

fig. 2 is a structural view of a tray according to an embodiment of the present utility model;

FIG. 3 is a block diagram of a battery top cover with pins mated with a tray in accordance with an embodiment of the present utility model;

FIG. 4 is a cross-sectional view perpendicular to the first direction of FIG. 3 in accordance with an embodiment of the present utility model;

FIG. 5 is a cross-sectional view perpendicular to the third direction of FIG. 3 in accordance with an embodiment of the present utility model;

fig. 6 is a structural view of a first receiving groove and a second receiving groove according to an embodiment of the present utility model;

fig. 7 is a structural diagram of a battery top cover with pins, which is matched with a first accommodating groove and a second accommodating groove according to an embodiment of the utility model;

fig. 8 is another construction view of the first receiving groove and the second receiving groove according to the embodiment of the present utility model;

fig. 9 is another structure diagram of the battery top cover with pins, which is matched with the first accommodating groove and the second accommodating groove according to the embodiment of the utility model.

In the figure, 10, pins; 101. a first segment; 102. bending the segment body; 103. a second segment; 20. a battery top cover; 1. a tray body; 11. a first side; 12. a cavity; 121. a cavity floor; 122. a cavity wall; 13. a second side; 2. a first accommodating groove; 3. a second accommodating groove; 31. a first groove portion; 311. a first groove wall surface; 312. a second groove wall surface; 3121. a first limiting surface; 3122. the second limiting surface; 32. a second groove portion; 4. an avoidance groove; 5. fool-proof protruding parts; 51. a positive electrode fool-proof protrusion; 52. a negative electrode fool-proof bulge; 6. forming a bulge; 61. a first molding part; 62. a second molding part; x, a first direction; z, the second direction; y, third direction.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" means two or more, unless specifically defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection may be mechanical connection, direct connection or indirect connection through an intermediate medium, and may be internal connection of two elements or interaction relationship of two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

In the examples of the present application, "parallel" refers to a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is-1 ° to 1 °. The term "perpendicular" refers to a state in which the angle formed by a straight line and a straight line, a straight line and a plane, or a plane and a plane is 89 ° to 91 °. Equal distance, equal angle or equal area refers to a state where the tolerance range is-1%.

The battery top cover is one of the components of the power battery, which is transported by the pallet to the production station to participate in the production process of the power battery.

In the prior art, in order to ensure high power output of the power battery, a top cover of the power battery often adopts a structure with pins, wherein the pins are used as electric connectors for connecting an internal electric core and an external circuit of the power battery.

As shown in fig. 1 to 4, a tray according to a preferred embodiment of the present utility model is suitable for a battery top cover 20 with pins 10, and the tray has a first direction X, a second direction Z and a third direction Y intersecting each other two by two, and as a preferred embodiment of the present utility model, the first direction X, the second direction Z and the third direction Y are perpendicular to each other two by two. The tray comprises a tray body 1, wherein the tray body 1 is provided with a first side surface 11, the first side surface 11 is provided with a plurality of first accommodating grooves 2 arranged along a first direction X, and the first accommodating grooves 2 are used for accommodating a battery top cover 20; the bottom surface of the first accommodating groove 2 is provided with a second accommodating groove 3, and the second accommodating groove 3 is used for accommodating the pins 10.

The first receiving grooves 2 arranged along the first direction X are arranged in a row, and at least two rows of first receiving grooves 2 are formed in the first side surface 11 along the third direction Y, so that the carrying capacity of the tray can be improved. Of course, the present utility model does not exclude that the first accommodating groove 2 is only one row, and the number of rows of the first accommodating groove 2 may be set according to practical applications.

In practical application, when the battery top cover 20 with the pins 10 needs to be placed on the tray, the pins 10 are inserted into the second accommodating groove 3 through the first accommodating groove 2, and then the battery top cover 20 is inserted into the first accommodating groove 2, so that the battery top cover 20 with the pins 10 is placed on the tray. And because the second accommodation groove 3 sets up the tank bottom face at first accommodation groove 2, so second accommodation groove 3 can not occupy the position on the first side 11 for first side 11 can set up more first accommodation groove 2, and the volume utilization ratio of tray is high.

In the related art, the leads 10 are disposed at one end of the battery top cover 20 in the thickness direction thereof, and the leads 10 extend a predetermined length in a direction away from the battery top cover 20.

Illustratively, as shown in fig. 1, the lead 10 includes a first segment 101, a bent segment 102, and a second segment 103 disposed in a direction away from the battery top cover 20, the first segment 101 being connected to the battery top cover 20, the bent segment 102 connecting the first segment 101 and the second segment 103.

Based on the battery top cover 20 of the pin 10, the preferred tray of the present utility model, the second accommodating groove 3 includes a first groove portion 31 and a second groove portion 32 which are arranged along the second direction Z and are communicated, and the first groove portion 31 is communicated with the first accommodating groove 2; the first groove 31 has a larger dimension than the second groove 32 in the first direction X; the first groove 31 is used for accommodating the first section 101 and the bending section 102 of the pin 10, and the second groove 32 is used for accommodating the second section 103 of the pin 10 and is a profiling structure matched with the second section 103 of the pin 10. Because the second groove portion 32 is of a profiling structure, when the top cover is placed on the tray, the first accommodating groove 2 limits the position of the battery top cover 20, the second groove portion 32 limits the position of the second section 103 of the pin 10, and therefore the pin 10 can be stably placed, and the pin 10 is not easy to deform in the transportation process.

In addition, since the pin 10 is configured to include the first segment 101, the second segment 103 and the bent segment 102, the first groove 31 has a size larger than that of the second groove 32 along the first direction X, so that the second segment 103 can be smoothly inserted into the second groove 32, thereby ensuring that the pin 10 can be smoothly inserted into the second accommodating groove 3.

In some embodiments, as shown in fig. 6, the first groove portion 31 includes a first groove wall surface 311 and a second groove wall surface 312 that connect the first receiving groove 2 and the second groove portion 32, the first groove wall surface 311 and the second groove wall surface 312 being arranged along the first direction X; the first groove wall surface 311 is perpendicular to the first direction X; the second groove wall surface 312 includes a first limiting surface 3121 and a second limiting surface 3122 that are connected to each other, the first limiting surface 3121 is perpendicular to the first direction X, one end of the first limiting surface 3121 is connected to the first accommodating groove 2, one end of the second limiting surface 3122 away from the first limiting surface 3121 is connected to the second groove portion 32, and an extending direction of the second limiting surface 3122 from the first limiting surface 3121 to the second groove portion 32 is oblique to the second direction Z. In practical applications, as shown in fig. 5 and 7, the structure of the battery top cover 20 with the pins 10 placed on the tray is that the first accommodating groove 2 defines the position of the battery top cover 20, the second groove 32 defines the position of the second segment 103 of the pins 10, the first limiting surface 3121 is abutted against the first segment 101 of the pins 10, the second limiting surface 3122 is abutted against the bent segment 102 of the pins 10, and neither the first segment 101 nor the bent segment 102 is in a suspended state, so that the pins 10 are more stably placed on the tray.

In other embodiments, as shown in fig. 8, the first groove portion 31 includes a first groove wall surface 311 and a second groove wall surface 312 that connect the first accommodating groove 2 and the second groove portion 32, and the first groove wall surface 311 and the second groove wall surface 312 are arranged along the first direction X and are each perpendicular to the first direction X. In practical applications, the structure of the battery top cover 20 with the pins 10 placed on the tray is shown in fig. 9, at this time, the first accommodating groove 2 defines the position of the battery top cover 20, the second groove 32 defines the position of the second section 103 of the pin 10, and although the first section 101 and the bending section 102 are in a suspended state, the positions of the battery top cover 20 and the second section 103 are both defined, so that the pins 10 can be stably placed on the tray, and the pins 10 are not easy to deform during transportation.

In other embodiments, the pins 10 may be in a straight plate structure, the length direction of the pins 10 is parallel to the thickness direction of the battery top cover 20, and at this time, the shape of the entire second accommodating groove 3 is adapted to the shape of the pins 10, so that the pins 10 are stably arranged, at this time, the second accommodating groove 3 does not occupy the position of the first side 11, and the tray with such a structure also has the characteristic of high volume utilization rate.

Of course, the present utility model does not exclude that the pins 10 are arranged in the second accommodating groove 3 in a suspended state, that is, the space of the second accommodating groove 3 is larger than the volume of the pins 10, and at this time, the second accommodating groove 3 does not occupy the position of the first side 11, and the tray with such a structure also has the characteristic of high volume utilization rate.

In some embodiments, the first side 11 is further provided with an avoidance groove 4, two ends of the first accommodating groove 2 along the first direction X are provided with the avoidance groove 4, and one end of the avoidance groove 4 along the first direction X is an open end which is communicated with the corresponding first accommodating groove 2. Specifically, when the top cover 20 of the discharge cell is taken, the arrangement of the avoidance groove 4 can allow the fingers of the staff to extend in, so that the top cover 20 of the discharge cell is taken more conveniently.

Further, referring to fig. 2, along the first direction X, the avoidance grooves 4 between two adjacent first accommodating grooves 2 are mutually communicated, at this time, two adjacent first accommodating grooves 2 may share the same avoidance groove 4 for a worker to take out the discharge cell top cover 20, based on which, the plurality of first accommodating grooves 2 may be arranged more compactly along the first direction X, so as to fully utilize the positions on the first side 11, thereby improving the volume utilization rate of the tray.

In the production process of the power battery, in order to ensure the production efficiency, the posture of the battery top cover 20 when being taken out from the tray is the same. At this time, it is necessary to unify the direction in which the battery top cover 20 is placed on the tray. Based on this, preferably, the tray further includes a fool-proof protrusion, where the fool-proof protrusion is provided with a plurality of fool-proof protrusions 5 and the fool-proof protrusions 5 are disposed on the first side 11, and the fool-proof protrusions 5 are in one-to-one correspondence with the first accommodating grooves 2; in the fool-proof protruding portion 5 and the first accommodating groove 2 which are correspondingly arranged, the fool-proof protruding portion 5 and the first accommodating groove 2 are arranged along the first direction X, and workers refer to the putting direction of the battery top cover 20 through the fool-proof protruding mode, so that misoperation of the workers is avoided, in addition, judgment time of the workers to the putting direction can be reduced, and working efficiency can be improved.

Generally, the battery top cover 20 has a rectangular structure, on which positive and negative electrode marks are provided, and further, as shown in fig. 2, the first accommodating groove 2 has a rectangular shape, and the fool-proof protruding portion 5 includes a positive electrode fool-proof protrusion 51 and a negative electrode fool-proof protrusion 52; in the fool-proof protruding portion 5 and the first accommodating groove 2 which are correspondingly arranged, the anode fool-proof protruding portion 51 and the cathode fool-proof protruding portion 52 respectively correspond to the two ends of the first accommodating groove 2 in the length direction, the anode fool-proof protruding portion 51 and the cathode fool-proof protruding portion 52 can respectively correspond to the anode and cathode marks on the battery top cover 20, and based on the anode fool-proof protruding portion and the cathode fool-proof protruding portion, the recognition degree of the putting direction of the battery top cover 20 is higher.

In some embodiments, as shown in fig. 5 and 6, the tray body 1 further has a cavity 12 and a second side 13 facing away from the first side 11, an end of the cavity 12 away from the first side 11 is an open end extending onto the second side 13, the cavity 12 has a cavity bottom 121 and a cavity wall 122 connected to each other, and an end of the cavity wall 122 away from the cavity bottom 121 encloses the open end; the tray further comprises a forming protrusion 6, the forming protrusion 6 comprises a first forming portion 61 and a second forming portion 62 which are connected with each other, the first forming portion 61 is arranged on the cavity bottom surface 121, the forming protrusion 6 is provided with a plurality of forming protrusions 6 in one-to-one correspondence with the first accommodating grooves 2, the first accommodating grooves 2 are arranged in the first forming portion 61, and the second accommodating grooves 3 are arranged in the second forming portion 62. The tray with the structure can be manufactured through a plastic sucking process, the production efficiency is high, and the manufactured tray is light in weight and low in manufacturing cost.

In summary, the tray of the utility model has the first accommodating groove 2 for accommodating the battery top cover 20 and the second accommodating groove 3 for accommodating the pins 10, wherein the first accommodating groove 2 is arranged on the first side surface 11, the second accommodating groove 3 is arranged on the groove bottom surface of the first accommodating groove 2, and the second accommodating groove 3 does not occupy the position on the first side surface 11, so that more first accommodating grooves 2 can be arranged on the first side surface 11, and the volume utilization rate of the tray is high.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. A tray adapted for a battery top cover (20) with pins (10), the tray having a first orientation (X), comprising:

the tray body (1) is provided with a first side surface (11), the first side surface (11) is provided with a plurality of first accommodating grooves (2) arranged along the first direction (X), and the first accommodating grooves (2) are used for accommodating a battery top cover (20); the bottom surface of the groove of the first accommodating groove (2) is provided with a second accommodating groove (3), and the second accommodating groove (3) is used for accommodating pins (10).

2. The tray according to claim 1, characterized in that it also has a second direction (Z), said first direction (X) and said second direction (Z) intersecting; the pin (10) comprises a first section body (101), a bending section body (102) and a second section body (103) which are arranged along the direction away from the battery top cover, wherein the first section body (101) is connected with the battery top cover (20), and the bending section body (102) is connected with the first section body (101) and the second section body (103);

the first accommodating groove (2) is used for limiting the position of the battery top cover (20); the second accommodating groove (3) comprises a first groove part (31) and a second groove part (32) which are arranged along the second direction (Z) and communicated, and the first groove part (31) is communicated with the first accommodating groove (2); along the first direction (X), the first groove (31) has a larger dimension than the second groove (32); the first groove part (31) is used for accommodating the first section body (101) and the bending section body (102) of the pin (10), and the second groove part (32) is used for accommodating the second section body (103) of the pin (10) and is of a profiling structure matched with the second section body (103) of the pin (10).

3. The tray according to claim 2, wherein the first groove portion (31) comprises a first groove wall surface (311) and a second groove wall surface (312) connecting the first receiving groove (2) and the second groove portion (32), the first groove wall surface (311) and the second groove wall surface (312) being arranged along the first direction (X);

the first groove wall surface (311) is perpendicular to the first direction (X);

the second groove wall surface (312) comprises a first limit surface (3121) and a second limit surface (3122) which are connected with each other, the first limit surface (3121) is perpendicular to the first direction (X) and one end of the first limit surface is connected with the first accommodating groove (2), one end of the second limit surface (3122) away from the first limit surface (3121) is connected with the second groove part (32), and the extending direction of the second limit surface (3122) from the first limit surface (3121) to the second groove part (32) is oblique to the second direction (Z); the first limiting surface (3121) is used for being abutted against the first section (101) of the pin (10), and the second limiting surface (3122) is used for being abutted against the bending section (102) of the pin (10).

4. The tray according to claim 2, wherein the first groove portion (31) comprises a first groove wall surface (311) and a second groove wall surface (312) connecting the first receiving groove (2) and the second groove portion (32), the first groove wall surface (311) and the second groove wall surface (312) being arranged along the first direction (X) and both being perpendicular to the first direction (X).

5. The tray according to claim 1, wherein the first side surface (11) is further provided with an avoidance groove (4), both ends of the first accommodating groove (2) along the first direction (X) are provided with the avoidance groove (4), and one end of the avoidance groove (4) along the first direction (X) is an open end which is communicated with the corresponding first accommodating groove (2).

6. A pallet according to claim 5, characterized in that, in the first direction (X), the relief grooves (4) between two adjacent first receiving grooves (2) communicate with each other.

7. A pallet as claimed in claim 1, characterised in that it also has a third direction (Y) intersecting the first direction (X);

the first accommodating grooves (2) are arranged in a row along the first direction (X), and at least two rows of the first accommodating grooves (2) are arranged on the first side surface (11) along the third direction (Y).

8. The tray of claim 1, further comprising:

the fool-proof protruding parts (5) are arranged on the first side face (11), and the fool-proof protruding parts (5) are in one-to-one correspondence with the first accommodating grooves (2); in the fool-proof protruding portion (5) and the first accommodating groove (2) which are correspondingly arranged, the fool-proof protruding portion (5) and the first accommodating groove (2) are arranged along the first direction (X).

9. The tray according to claim 8, wherein the first receiving groove (2) is rectangular in shape, and the fool-proof protrusion (5) includes a positive fool-proof protrusion (51) and a negative fool-proof protrusion (52); in the fool-proof protruding portion (5) and the first accommodating groove (2) which are correspondingly arranged, the anode fool-proof protruding portion (51) and the cathode fool-proof protruding portion (52) are respectively corresponding to the two ends of the first accommodating groove (2) in the length direction.

10. The tray according to claim 1, wherein the tray body (1) further has a cavity (12) and a second side (13) facing away from the first side (11), an end of the cavity (12) facing away from the first side (11) being an open end extending onto the second side (13), the cavity (12) having a cavity bottom surface (121) and a cavity wall surface (122) connected to each other, an end of the cavity wall surface (122) facing away from the cavity bottom surface (121) enclosing the open end;

the tray further comprises:

shaping arch (6), including interconnect's first shaping portion (61) and second shaping portion (62), first shaping portion (61) set up on chamber bottom surface (121), shaping arch (6) are equipped with a plurality of and a plurality of shaping arch (6) with first storage tank (2) one-to-one, first storage tank (2) set up in first shaping portion (61), second storage tank (3) set up in second shaping portion (62).