Conveying belt supporting plate and welding conveying device

Abstract

The utility model provides a conveying belt supporting plate and a welding conveying device.The conveying belt supporting plate is applied to battery string forming equipment connected with battery pieces in series, the conveying belt supporting plate comprises a plate body, a plurality of adsorption holes are formed in the upper surface of the plate body, a cooling flow channel is further formed in the plate body, and the cooling flow channel is provided with an inflow port and an outflow port; cooling fluid flows into the cooling flow channel through the flow inlet and flows out of the cooling flow channel through the flow outlet. According to the conveying belt supporting plate, the cooling flow channel is formed in the conveying belt supporting plate, the conveying face of the conveying belt is supported by the conveying belt supporting plate, and the conveying belt can be cooled. When the battery piece is laid on the conveying belt, the conveying belt can cool the battery piece, so that the temperature of the battery piece is lower than the initial curing temperature of the thermosetting adhesive on the battery piece, the thermosetting adhesive on the battery piece is prevented from being cured before the hold-down clamp is placed, and finally, after the hold-down clamp is laid, a welding strip group can be fully jointed with an adhesive point; and the stringing quality is further ensured.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic module production equipment, and specifically to a conveyor belt support plate and a welding conveying device. Background Art

[0002] In the process of gluing and stringing cells, when the glue points applied to the cell ribbon laying path are thermosetting glue, the cell and ribbon assembly are laid onto the conveyor belt of the welding conveyor according to the stringing rules of the cell string. The conveyor belt then transports the laid cell and ribbon assembly to the heating mechanism, which heats the cell to solidify the glue points. The ribbon assembly is then bonded to the cell through the solidified glue points to form a cell string. To prevent the ribbon from moving relative to the cell during the conveying process, the cell is first placed on the cell laying station on the conveyor belt, and then the cell is stepped to the press laying station. After the ribbon assembly is laid, the press is placed on the cell to press the ribbon assembly onto the cell.

[0003] Since the conveyor belt is circulated and transported in a loop after being heated at the heating mechanism, the overall temperature of the conveyor belt is relatively high. After the battery cells are placed on the battery cell laying station, the thermosetting adhesive on the battery cells is easily heated by the conveyor belt and solidifies to a certain extent. As a result, after the press is laid, the soldering tape group cannot be fully bonded with the glue points, thereby affecting the subsequent bonding effect of the glue points on the soldering tape. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a conveyor belt support plate, and its technical solution is as follows:

[0005] A conveyor belt support plate is used in a battery stringing device for connecting battery cells in series. The conveyor belt support plate includes a plate body, a plurality of adsorption holes are provided on the upper surface of the plate body, and a cooling flow channel is also provided on the plate body. The cooling flow channel has an inlet and an outlet; the cooling fluid flows into the cooling flow channel through the inlet and flows out of the cooling flow channel through the outlet.

[0006] The conveyor belt support plate provided in this application is provided with a cooling channel. Using the conveyor belt support plate provided in this application to support the conveying surface of the conveyor belt of the welding conveyor device can cool the conveyor belt. When the battery cells are laid onto the conveyor belt, the conveyor belt can cool the battery cells, making the temperature of the battery cells lower than the initial curing temperature of the thermosetting adhesive on them, thereby preventing the thermosetting adhesive on the battery cells from curing before the press is placed. Ultimately, after the press is laid, the welding ribbon group can fully engage with the glue point, thereby ensuring the quality of the string.

[0007] In some embodiments, the plate body includes a first support segment and a second support segment arranged in sequence along the length direction; adsorption holes are provided on the first support segment and the second support segment, and the cooling channel is provided on the first support segment and / or the second support segment.

[0008] By setting the plate body to consist of a first support segment and a second support segment, a cell laying station and a press laying station can be set on the first support segment and the second support segment respectively, ultimately achieving independent control of the adsorption performance and temperature of the cell laying station and the press laying station.

[0009] In some embodiments, the adsorption hole includes a first adsorption hole and a second adsorption hole, and the conveyor belt support plate also includes a first air pumping block and a second air pumping block; the first adsorption hole is arranged on the first support section, and the first air pumping block is arranged at the bottom of the first support section. The first air pumping block is provided with a first air pumping cavity connected to the first adsorption hole, and the first air pumping cavity is connected to the air pumping device, and the air pumping device pumps air to the first adsorption hole through the first air pumping cavity, so that the first adsorption hole generates an adsorption force; the second adsorption hole is arranged on the second support section, and the second air pumping block is arranged at the bottom of the second support section. The second air pumping block is provided with a second air pumping cavity connected to the second adsorption hole, and the second air pumping cavity is connected to the air pumping device, and the air pumping device pumps air to the second adsorption hole through the second air pumping cavity, so that the second adsorption hole generates an adsorption force.

[0010] By independently exhausting the first adsorption holes and the second adsorption holes on the first support segment and the second support segment through the first exhaust block and the second exhaust block respectively, the uniformity and stability of the adsorption force of the first support segment and the second support segment can be improved, thereby improving the adsorption effect of the conveying surface of the conveyor belt on the battery cell.

[0011] In some embodiments, a plurality of first adsorption grooves are arranged on the upper surface of the first support section at intervals along the first direction. The first adsorption grooves extend along the second direction. A plurality of first adsorption holes are arranged in the first adsorption grooves. The second direction is perpendicular to the first direction.

[0012] By providing a first adsorption groove on the upper surface of the first support segment and arranging the first adsorption holes in the first adsorption groove, the adsorption area of ​​the upper surface of the first support segment can be increased, thereby improving the adsorption effect of the first support segment on the battery cell.

[0013] In some embodiments, a plurality of second adsorption grooves are arranged on the upper surface of the second support section at intervals along the first direction. The second adsorption grooves extend along the second direction. A plurality of second adsorption holes are arranged in the second adsorption grooves. The second direction is perpendicular to the first direction.

[0014] By providing a second adsorption groove on the upper surface of the second support segment and arranging the second adsorption holes in the second adsorption groove, the adsorption area of ​​the upper surface of the second support segment can be increased, thereby improving the adsorption effect of the second support segment on the battery cell.

[0015] In some embodiments, the conveyor belt support plate also includes a first sealing plate, the first sealing plate sealing gasket is arranged between the first support section and the first air pumping block, and the first sealing plate is provided with a first through hole connecting the first adsorption hole and the first air pumping cavity; the conveyor belt support plate also includes a second sealing plate, the second sealing plate sealing gasket is arranged between the second support section and the second air pumping block, and the second sealing plate is provided with a second through hole connecting the second adsorption hole and the second air pumping cavity.

[0016] By providing a first sealing plate, the sealing performance at the contact point between the first support section and the first air pumping block is improved, ensuring the air pumping effect of the first air pumping block on the first adsorption hole, and preventing air leakage at the contact point between the first support section and the first air pumping block, which would result in the adsorption force of the first adsorption hole being too weak. By providing a second sealing plate, the sealing performance at the contact point between the second support section and the second air pumping block is improved, ensuring the air pumping effect of the second air pumping block on the second adsorption hole, and preventing air leakage at the contact point between the second support section and the second air pumping block, which would result in the adsorption force of the second adsorption hole being too weak.

[0017] In some embodiments, a continuous channel that winds around the second adsorption hole is provided at the bottom of the second supporting section, and the channel and the second sealing plate are combined to form a cooling channel.

[0018] The grooves at the bottom of the second support section and the second sealing plate form a cooling channel, facilitating its fabrication and molding. The winding structure of the cooling channel increases its length, thereby increasing the cooling rate of the second support section and improving temperature uniformity within the second support section.

[0019] In some embodiments, a plurality of sealing ring installation grooves are provided at the bottom of the second support section to separate the second adsorption hole and the channel. Sealing rings are installed in the sealing ring installation grooves, and the sealing rings are tightened between the second support section and the second sealing plate.

[0020] The second adsorption hole and the groove are sealed and isolated.

[0021] The present application also provides a welding conveying device, which includes a base, a first support plate, a second support plate, a drive roller set and a conveyor belt, wherein:

[0022] The driving roller group is arranged on the base body, and the driving roller group includes at least rollers arranged at both ends of the base body. The conveyor belt is sleeved on the driving roller group. The driving roller group is configured to drive the conveyor belt to transport. The battery cell laying station and the press laying station are sequentially arranged on the conveying path of the conveyor belt;

[0023] The first support plate and the second support plate are sequentially arranged on the base body along the conveying direction of the conveyor belt, and the conveying surface of the conveyor belt is supported on the first support plate and the second support plate, wherein the cell laying station and the press laying station are located above the first support plate;

[0024] The first support plate is any one of the conveyor belt support plates described above.

[0025] The welding conveying device provided in the present application has a first support plate that can cool the battery cells after laying, so that the temperature of the battery cells is lower than the starting curing temperature of the thermosetting glue on the battery cells, thereby preventing the thermosetting glue on the battery cells from curing before the press is placed. Ultimately, it ensures that after the press is laid, the welding ribbon group can be fully bonded with the glue point, thereby ensuring the quality of the string.

[0026] In some embodiments, the welding conveyor device further includes a heat insulating plate installed between the first support plate and the second support plate.

[0027] By providing the heat insulation plate, it is possible to prevent the heat on the second support plate from being transferred to the first support plate, thereby ensuring the cooling effect of the first support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the three-dimensional structure of the conveyor belt support plate in an embodiment of the present application;

[0029] Figure 2 This is a structural diagram of the conveyor belt support plate in an embodiment of the present application after omitting the first air pumping block and the second air pumping block;

[0030] Figure 3 This is a schematic structural diagram of the conveyor belt support plate in an embodiment of the present application after omitting the first air pumping block, the second air pumping block, the first sealing plate, and the second sealing plate;

[0031] Figure 4 Schematic diagram of the side structure of the conveyor belt support plate in an embodiment of the present application;

[0032] Figure 5 for Figure 4 AA cross-sectional view;

[0033] Figure 6 for Figure 4 BB cross-sectional view.

[0034] Figure 7 Schematic diagram of the structure of the welding conveying device in an embodiment of the present application;

[0035] Figure 8 This is a schematic structural diagram of the welding conveying device in an embodiment of the present application after the conveyor belt is omitted.

[0036] Figures 1 to 8Included are:

[0037] Conveyor belt support plate 1;

[0038] First support section 11: first adsorption hole 111, first adsorption groove 112;

[0039] Second support section 12: second adsorption hole 121, second adsorption groove 122, channel 123, sealing ring installation groove 124;

[0040] First air pumping block 15: first air pumping cavity 151,

[0041] Second air pumping block 16: second air pumping cavity 161,

[0042] First sealing plate 17: first through hole 171;

[0043] Second sealing plate 18: second through hole 181;

[0044] A second support plate 2;

[0045] Driving roller group 3: active roller 31, driven roller 32, tensioning roller 33;

[0046] Conveyor belt 4;

[0047] Base body 8; heat insulation board 9;

[0048] Battery cell laying station A and press laying station B. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0050] As described in the background technology section, since the conveyor belt is circulated, the conveyor belt is heated at the heating mechanism and then circulated, resulting in a high overall temperature of the conveyor belt. After the battery cells are placed on the battery cell laying station, the thermosetting adhesive on the battery cells is easily heated by the conveyor belt and solidifies to a certain extent, resulting in the soldering tape group being unable to fully engage with the glue points after the press is laid, thereby affecting the subsequent bonding effect of the glue points on the soldering tape.

[0051] To this end, the present application provides a conveyor belt support plate, which is used in a battery stringing device for connecting battery cells in series. The battery stringing device is used to implement the series connection of battery cells to prepare a battery string, which at least includes a welding conveyor device and a heating mechanism. The battery cells and the welding ribbon group are laid on the conveyor belt of the welding conveyor device. The conveyor belt transports the laid battery cells and the welding ribbon group to the heating mechanism. The heating mechanism heats the battery cells and the welding ribbon group so that the welding ribbon group is welded and / or bonded to the battery cells. The conveyor belt support plate of the present application is used to support the conveying surface of the conveyor belt of the welding conveyor device.

[0052] like Figures 1 to 6 As shown, the conveyor belt support plate 1 in the embodiment of the present application includes a plate body, a plurality of adsorption holes are provided on the upper surface of the plate body, and a cooling channel is also provided on the plate body. The cooling channel has an inlet and an outlet. A cooling fluid (such as coolant or cooling air) flows into the cooling channel through the inlet and flows out of the cooling channel through the outlet.

[0053] The conveyor belt support plate 1 provided in the embodiment of the present application has a cooling channel disposed therein. The conveyor belt support plate 1 provided in the embodiment of the present application is used to support the conveying surface of the conveyor belt of the welding conveyor device, thereby cooling the conveyor belt. When the battery cells are laid onto the conveyor belt, the conveyor belt can cool the battery cells, causing the temperature of the battery cells to be lower than the initial curing temperature of the thermosetting adhesive thereon, thereby preventing the thermosetting adhesive on the battery cells from curing before the press is placed. Ultimately, after the press is laid, the welding ribbon group can fully engage with the adhesive point, thereby ensuring the quality of the string.

[0054] Optionally, the plate body includes a first support segment 11 and a second support segment 12 sequentially arranged along the length direction. The first support segment 11 and the second support segment 12 are both provided with adsorption holes, and the cooling channel is provided on the first support segment 11 and / or the second support segment 12.

[0055] By setting the plate to consist of a first support segment 11 and a second support segment 12, the cell laying station and the press laying station can be arranged on the first support segment 11 and the second support segment 12 respectively, so that independent control of the adsorption performance and temperature at the cell laying station and the press laying station can be achieved.

[0056] Optionally, the adsorption holes include a first adsorption hole 111 and a second adsorption hole 121. The conveyor belt support plate in the embodiment of the present application further includes a first air extraction block 15 and a second air extraction block 16.

[0057] The first adsorption hole 111 is arranged on the first supporting section 11, and the first air pumping block 15 is arranged at the bottom of the first supporting section 11. The first air pumping block 15 is provided with a first air pumping cavity 151 connected to the first adsorption hole 111. The first air pumping cavity 151 is connected to the air pumping device, and the air pumping device pumps air from the first adsorption hole 111 through the first air pumping cavity 151 so that the first adsorption hole 111 generates adsorption force.

[0058] The second adsorption hole 121 is arranged on the second supporting section 12, and the second air pumping block 16 is arranged at the bottom of the second supporting section 12. The second air pumping block 16 is provided with a second air pumping cavity 161 connected to the second adsorption hole 121. The second air pumping cavity 161 is connected to the air pumping device, and the air pumping device pumps air from the second adsorption hole 121 through the second air pumping cavity 161 so that the second adsorption hole 121 generates adsorption force.

[0059] The first suction holes 111 and the second suction holes 121 on the first support segment 11 and the second support segment 12 are independently evacuated through the first suction block 15 and the second suction block 16, thereby improving the uniformity and stability of the adsorption force of the first support segment 11 and the second support segment 12, and ultimately improving the adsorption effect of the conveying surface of the conveyor belt on the battery cell.

[0060] like Figure 1 As shown, optionally, the upper surface of the first support segment 11 is provided with a plurality of first adsorption grooves 112 spaced apart along a first direction (e.g., the X direction). The first adsorption grooves 112 extend along a second direction (e.g., the Y direction), and a plurality of first adsorption holes 111 are provided within the first adsorption grooves 112. The second direction is perpendicular to the first direction. Similarly, the upper surface of the second support segment 12 is provided with a plurality of second adsorption grooves 122 spaced apart along the first direction. The second adsorption grooves 122 extend along the second direction, and a plurality of second adsorption holes 121 are provided within the second adsorption grooves 122.

[0061] Figure 1 In the embodiment shown, the first direction is parallel to the length direction of the conveyor belt support plate 1, and the second direction is parallel to the width direction of the conveyor belt support plate 1. Of course, in other embodiments, it can also be set that the first direction is parallel to the width direction of the conveyor belt support plate 1, and the second direction is parallel to the length direction of the conveyor belt support plate 1.

[0062] By setting a plurality of first adsorption grooves 112 on the upper surface of the first support section 11 and arranging the first adsorption holes 111 in each first adsorption groove 112, the adsorption area of ​​the upper surface of the first support section 11 can be increased, thereby improving the adsorption effect of the conveyor belt on the first support section 11 on the battery cell.

[0063] Similarly, by setting a second adsorption groove 122 on the upper surface of the second support section 12 and arranging the second adsorption hole 121 in the second adsorption groove 122, the adsorption area of ​​the upper surface of the second support section 12 can be increased, thereby improving the adsorption effect of the conveyor belt on the second support section 12 on the battery cell.

[0064] like Figure 2 and Figure 3 As shown, the conveyor belt support plate 1 in the embodiment of the present application further includes a first sealing plate 17 and a second sealing plate 18. The first sealing plate 17 is provided with a sealing gasket between the first support section 11 and the first air extraction block 15. The first sealing plate 17 is provided with a first through hole 171 connecting the first adsorption hole 111 and the first air extraction cavity 151. The second sealing plate 18 is provided with a sealing gasket between the second support section 12 and the second air extraction block 16. The second sealing plate 18 is provided with a second through hole 181 connecting the second adsorption hole 121 and the second air extraction cavity 161.

[0065] By setting the first sealing plate 17, the sealing performance of the contact between the first supporting section 11 and the first air pumping block 15 is improved, ensuring the air pumping effect of the first air pumping block 15 on the first adsorption hole 111, and preventing air leakage at the hot contact between the first supporting section 11 and the first air pumping block 15, which causes the adsorption force of the first adsorption hole 111 to be too small.

[0066] Similarly, by setting up the second sealing plate 18, the sealing performance of the contact between the second support section 12 and the second air pumping block 16 is improved, ensuring the air pumping effect of the second air pumping block 16 on the second adsorption hole 121, and preventing air leakage at the contact between the second support section 12 and the second air pumping block 16, which would cause the adsorption force of the second adsorption hole 121 to be too small.

[0067] like Figure 3 As shown, optionally, a continuous channel 123 that winds around the second adsorption hole 121 is provided at the bottom of the second support segment 12 , and the channel 123 and the second sealing plate 18 are combined to form a cooling channel.

[0068] The groove 123 provided at the bottom of the second supporting section 12 and the second sealing plate 18 together form a cooling channel, which facilitates the preparation and molding of the cooling channel.

[0069] The channel 123 is a curved and circuitous structure, which increases the length of the cooling channel, thereby improving the cooling efficiency and cooling uniformity of the cooling channel on the second supporting segment 12.

[0070] like Figure 3 As shown, optionally, the bottom of the second support section 12 is further provided with a plurality of sealing ring installation grooves 124 separating the second adsorption holes 121 and the channel 123. A sealing ring is installed in each sealing ring installation groove 124, and the sealing ring is tightened between the second support section 12 and the second sealing plate 18.

[0071] The sealing ring installed in the sealing ring installation groove 124 realizes the sealing isolation between the second adsorption hole 121 and the groove 123, thereby preventing the cooling fluid in the groove 123 from leaking and preventing the second adsorption hole 121 from leaking.

[0072] Based on the same application concept, this application also provides a welding conveying device. Figures 7 and 8 As shown, the welding conveying device includes a base 8, a first support plate, a second support plate 2, a drive roller set 3 and a conveyor belt 4, wherein:

[0073] The driving roller group 3 is arranged on the base body 8, and the driving roller group 3 includes at least rollers arranged at both ends of the base body 8. The conveyor belt 4 is sleeved on the driving roller group 3. For example, the rollers at both ends of the base body 8 are respectively an active roller 31 arranged at one end of the base body 8 and a driven roller 32 arranged at the other end of the base body 8. The driving roller group 3 can also include a tensioning roller 33.

[0074] The driving roller group 3 is configured to drive the conveyor belt 4 for transportation. The conveying path of the conveyor belt 4 is provided with a cell laying station A and a press laying station B in sequence.

[0075] The first support plate and the second support plate 2 are sequentially arranged on the base 8 along the conveying direction of the conveyor belt 4, and the conveying surface of the conveyor belt 4 is supported on the first support plate and the second support plate 2, wherein the battery cell laying station A and the press laying station B are located above the first support plate, wherein the first support plate is the conveyor belt support plate 1 provided in any of the above embodiments.

[0076] The laying process of the battery cells, welding ribbon groups and presses on the welding conveyor device of the present application is as follows: first place the battery cells on the battery cell laying station A on the conveyor belt 4, and then the conveyor belt 4 steps the battery cells to the press laying station B, and lay the welding ribbon group on the battery cells located at the press laying station B. After the welding ribbon group is laid, the press is laid on the battery cells, and the welding ribbon group is pressed onto the battery cells by the press. The conveyor belt 4 then transports the laid battery cells, welding ribbon groups and presses to the downstream.

[0077] The welding conveying device provided in the embodiment of the present application, wherein the first support plate can cool the battery cells laid above it (i.e., the battery cells at the battery cell laying station A and the press laying station B), so that the temperature of the battery cells is lower than the starting curing temperature of the thermosetting glue on the battery cells, thereby preventing the thermosetting glue on the battery cells from curing before the press is placed, and ultimately ensuring that the welding ribbon group can be fully bonded with the glue point after the press is laid, thereby ensuring the quality of the string.

[0078] like Figure 8 As shown, optionally, the welding conveying device further includes a heat insulation plate 9 installed between the first support plate and the second support plate 2 .

[0079] By providing the heat insulation plate 9, it is possible to prevent the heat on the second support plate 2 from being transferred to the first support plate, thereby ensuring the cooling effect of the first support plate.

[0080] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and that all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the above description in the embodiments. Furthermore, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A conveyor belt support plate, characterized in that: Applicable to a battery stringing device for connecting battery cells in series, the conveyor belt support plate includes a plate body, a plurality of adsorption holes are provided on the upper surface of the plate body, and a cooling flow channel is also provided on the plate body, and the cooling flow channel has an inlet and an outlet; The cooling fluid flows into the cooling channel through the inlet and flows out of the cooling channel through the outlet.

2. The conveyor belt support plate according to claim 1, characterized in that: The plate body comprises a first supporting section and a second supporting section sequentially arranged along the length direction; The adsorption holes are both provided on the first supporting segment and the second supporting segment, and the cooling flow channel is provided on the first supporting segment and / or the second supporting segment.

3. The conveyor belt support plate according to claim 2, wherein: The adsorption holes include a first adsorption hole and a second adsorption hole, and the conveyor belt support plate also includes a first air pumping block and a second air pumping block; The first adsorption hole is provided on the first supporting section, the first air pumping block is provided at the bottom of the first supporting section, the first air pumping block is provided with a first air pumping cavity connected to the first adsorption hole, the first air pumping cavity is connected to an air pumping device, and the air pumping device pumps air into the first adsorption hole through the first air pumping cavity, so that the first adsorption hole generates an adsorption force; The second adsorption hole is arranged on the second supporting section, the second air pumping block is arranged at the bottom of the second supporting section, the second air pumping block is provided with a second air pumping cavity connected to the second adsorption hole, the second air pumping cavity is connected to the air pumping device, and the air pumping device pumps air from the second adsorption hole through the second air pumping cavity so that the second adsorption hole generates adsorption force.

4. The conveyor belt support plate according to claim 3, wherein: A plurality of first adsorption grooves are arranged on the upper surface of the first support section at intervals along the first direction. The first adsorption grooves extend along the second direction. A plurality of first adsorption holes are arranged in the first adsorption grooves. The second direction is perpendicular to the first direction.

5. The conveyor belt support plate according to claim 3, characterized in that: A plurality of second adsorption grooves are arranged on the upper surface of the second supporting section at intervals along the first direction. The second adsorption grooves extend along the second direction. A plurality of second adsorption holes are arranged in the second adsorption grooves. The second direction is perpendicular to the first direction.

6. The conveyor belt support plate according to claim 3, characterized in that: The conveyor belt support plate further includes a first sealing plate, wherein a sealing gasket of the first sealing plate is provided between the first supporting section and the first air pumping block, and a first through hole communicating with the first adsorption hole and the first air pumping cavity is provided on the first sealing plate; The conveyor belt support plate also includes a second sealing plate. The second sealing plate sealing gasket is arranged between the second supporting section and the second air pumping block. The second sealing plate is provided with a second through hole connecting the second adsorption hole and the second air pumping cavity.

7. The conveyor belt support plate according to claim 6, characterized in that: A continuous channel that winds around the second adsorption hole is provided at the bottom of the second supporting section, and the channel and the second sealing plate are combined to form the cooling channel.

8. The conveyor belt support plate according to claim 7, wherein: The bottom of the second supporting section is provided with a plurality of sealing ring installation grooves separating the second adsorption holes and the channel. Sealing rings are installed in the sealing ring installation grooves. The sealing rings are tightened between the second supporting section and the second sealing plate.

9. A welding conveying device, characterized in that: The welding conveying device includes a base, a first support plate, a second support plate, a driving roller set and a conveyor belt, wherein: The driving roller group is arranged on the base body, and the driving roller group includes at least rollers arranged at both ends of the base body. The conveyor belt is sleeved on the driving roller group, and the driving roller group is configured to drive the conveyor belt to transport. The conveying path of the conveyor belt is sequentially provided with a battery cell laying station and a press laying station; The first support plate and the second support plate are sequentially arranged on the base along the conveying direction of the conveyor belt, and the conveying surface of the conveyor belt is supported on the first support plate and the second support plate, wherein the battery cell laying station and the press laying station are located above the first support plate; The first support plate is the conveyor belt support plate according to any one of claims 1 to 8.

10. The welding conveying device according to claim 9, wherein: The welding conveyor device further includes a heat insulation plate installed between the first support plate and the second support plate.

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