CN214239923U

CN214239923U - Laminating chamber hard pressing mechanism and laminating assembly of laminating machine

Info

Publication number: CN214239923U
Application number: CN202022419511.0U
Authority: CN
Inventors: 姜向赟; 张�杰
Original assignee: QINHUANGDAO BOOSTSOLAR PHOTOVOLTAIC EQUIPMENT CO Ltd
Current assignee: QINHUANGDAO BOOSTSOLAR PHOTOVOLTAIC EQUIPMENT CO Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-09-21
Anticipated expiration: 2030-10-27

Abstract

The utility model is directed to the prior art, when carrying out the lamination to battery pack, because the pressure that the subassembly receives is uneven, lead to battery pack to produce the warpage, the unevenness, edge thickness differs, edge glue overflow volume is different, thereby make the problem that the rejection rate is high, a lamination chamber hard press mechanism and laminator lamination assembly are provided, hard press mechanism includes hard clamp plate and buffering strutting arrangement, support hard clamp plate through buffering strutting arrangement, hard clamp plate transversely sets up, buffering strutting arrangement can stretch out or contract along with the size change of the external force that hard clamp plate received, thereby make hard clamp plate shift or reset in tight direction, laminator lamination assembly, include the upper box of compriseing upper cover and flange formula frame, be located the heating workstation and the elasticity of nowel and execute the casting die, adopt the utility model provides a lamination chamber hard press mechanism and laminator lamination assembly can avoid or reduce edge thickness and differ, The edge glue overflow amount is large, the surface of the battery is easy to warp, the rate of finished products is improved, and the production cost is reduced.

Description

Laminating chamber hard pressing mechanism and laminating assembly of laminating machine

Technical Field

The utility model relates to a laminator technical field, in particular to solar laminating machine technical field, in particular to laminating chamber hard pressing mechanism and laminator lamination assembly.

Background

The photovoltaic component laminating machine is used for laminating and curing photovoltaic components, and bubbles in each layer of the photovoltaic components are pressed out through a laminating assembly of the laminating machine and are cured together to form a photovoltaic cell. The laminator of the blanket-to-blanket type is a widely used laminator on the market, the basic structure of which is described in chinese utility model patent application No. CN200910141191.2, and has a lower press half and an upper press half, which in the closed state form a vacuum chamber by means of a surrounding, integral or multi-part seal; the press has a flexible diaphragm which divides a vacuum chamber into a product half which can be evacuated for receiving at least one workpiece and a pressure half which can be pressurized, wherein the diaphragm is designed and arranged in such a way that it presses the workpiece directly or indirectly against the underside of the vacuum chamber as a result of a pressure difference which is generated in the vacuum chamber by evacuating the product half and/or by pressurizing the pressure half, wherein the diaphragm is fastened to a separately operable diaphragm frame which is detachably mounted on the upper press half, the diaphragm usually being a silicone plate. When the laminating machine with the structure is used for pressing the assembly, the pressure difference is generated between the upper part and the lower part of the diaphragm by vacuumizing the half part of the product and inflating the half part of the pressure to enable the diaphragm to be pressed against the pressed workpiece, but when the laminating machine with the structure is used for pressing a thicker assembly such as a double-glass assembly, the diaphragm usually adopts an elastic element such as a silica gel plate, so that the pressure is uneven under the elastic action of the diaphragm, particularly, after the half part of the pressure is inflated, the silica gel plate forms a bag shape, the edge of the silica gel plate is arc-shaped, the pressing pressure of the edge part of the silica gel plate is obviously smaller than the pressing pressure of the central part of the silica gel plate, the pressed pressure of the assembly is uneven, the surfaces of the assembly after lamination are easy to warp, the surface is uneven, the edge thickness is uneven, and the edge glue overflow amount is not uniform, so that the whole quality of the battery assembly is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing, to prior art, when carrying out the lamination to battery pack, because the pressure that the subassembly receives is uneven, lead to battery pack to produce the warpage, the unevenness, edge thickness differs, and the excessive volume of gluing in edge is different to make the problem that the rejection rate is high, provide a hard pressing means in lamination chamber and laminator lamination assembly.

The utility model aims at realizing through the following technical scheme:

a laminating cavity hard pressing mechanism comprises a hard pressing plate and a buffer supporting device, wherein the hard pressing plate is supported by the buffer supporting device and transversely arranged, and the buffer supporting device can stretch or contract along with the change of external force applied to the hard pressing plate, so that the hard pressing plate vertically moves or resets;

the hard pressing plate is connected with the buffer supporting device through a connecting supporting plate, one end of the connecting supporting plate is connected with the hard pressing plate, the other end of the connecting supporting plate is connected with the buffer supporting device, and a plurality of buffer supporting devices are respectively arranged along two opposite sides or the periphery of the hard pressing plate;

the buffer supporting device is a compression spring, the upper end of the compression spring is connected with a hard pressing plate, the upper surface of the hard pressing plate is provided with a sinking platform, the depth of the sinking platform is equal to the thickness of the connecting supporting plate, one end of the connecting supporting plate is connected with the hard pressing plate, the other end of the connecting supporting plate is connected with the upper end of the compression spring, and a plurality of compression springs are respectively arranged along two opposite sides or the periphery of the hard pressing plate;

the upper surface of the hard pressing plate is provided with a sinking platform, the depth of the sinking platform is equal to the thickness of the connecting supporting plate, the lower surface of the connecting supporting plate is provided with bulges matched with the compression spring in number, and the bulges are positioned in a spring ring of the compression spring;

and counterbores are arranged at positions corresponding to the bulges, the bulges are positioned in the counterbores, and the upper ends of the compression springs are positioned in the counterbores.

A laminating assembly of a laminator comprises an upper box consisting of an upper cover and a flange type frame, a heating workbench and an elastic pressing piece which are positioned in a lower box, the elastic pressing piece is fixedly arranged between the upper cover and the flange type frame, the upper cover and the flange type frame are fixedly connected through the locking of the flange locking mechanism, the elastic pressing piece is fixed between the upper cover and the flange type frame, when the upper cover and the heating workbench are sealed by the flange type frame and the sealing element, the elastic pressing piece divides a sealing cavity formed by the upper cover, the flange type frame and the heating workbench into an upper chamber and a lower chamber which are sealed independently, the laminating cavity hard pressing mechanism is arranged in the lower chamber, the hard pressing plate is positioned above the heating workbench and below the elastic pressing piece, the buffer supporting device is positioned on the inner side of the flange type frame and arranged along two sides or the periphery of the inner side of the flange type frame;

an upper inflation channel is arranged on the upper cover, and a vent hole is arranged on the heating workbench;

two opposite side walls or peripheral side walls on the inner side of the flange type frame are provided with support bodies which transversely extend towards the indoor space, and the buffer supporting device is fixedly arranged on the support bodies;

the buffer supporting device can support the hard pressing plate when the hard pressing plate is in a natural state, and the hard pressing plate can contract when being subjected to the pressure of the elastic pressing piece and conducts the pressure so as to reduce the distance between the hard pressing plate and the heating workbench to enable the hard pressing plate to press a workpiece, and the hard pressing plate can be driven to reset when the pressure on the hard pressing plate is reduced or eliminated;

in a natural state, a distance H is reserved between the elastic pressing piece and the hard pressing piece.

Adopt the utility model provides a mechanism is pressed firmly in lamination chamber, hard clamp plate is supported by buffering strutting arrangement under the condition that does not receive external force oppression, when receiving external force oppression and when external force is greater than the holding power, overcome buffering strutting arrangement's holding power and remove, when external force disappears or external force is less than the holding power resets, therefore, can support hard clamp plate according to the oppression condition of the external force that receives to the work piece, exert pressure and provide the buffering at the in-process that exerts pressure to the lamination subassembly, therefore, exert pressure for the flexibility during the application of pressure, reducible hard clamp plate makes the probability that the work piece is damaged because of the impact force when with fragile pressed the work piece contact.

Compared with the method of independently pressing the components by elastic pressing parts such as silica gel plates and the like, the laminating machine laminating assembly adopting the structure has the advantages that the direct pressing parts are hard pressing plates, the elastic pressing parts deform to press the hard pressing parts, then the hard pressing plates press the laminating components, the pressure on the surface of a workpiece is more uniform at all positions, the situation of high local pressure at corners can not be generated, and therefore the conditions of inconsistent edge thickness, large edge glue overflow amount and easy warping of the surface of a battery can be avoided or reduced. The yield is improved, and the production cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a laminating assembly of a laminator according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the point K in FIG. 1

Fig. 3 is a schematic view of the connection structure between the hard pressing plate and the buffering support device in the laminating assembly of the laminating machine of the present invention.

Description of the reference numerals

100. Feeding the box; 101. an upper cover; 102. an upper inflation pipeline; 103. a flange locking mechanism; 104. a flange-type frame; 105. a frame seal; 106 cavity sealing strips; 108. high-temperature cloth is arranged; 113. an elastic pressing piece; 114. upper chamber

200. Discharging the box; 201. heating the working table; 202. a vent hole; 203. a laminate assembly; 204. a lower high temperature cloth; 206. lower chamber

300. Sealed cavity

400. A hard pressing mechanism; 401. a hard press plate; 402. a compression spring; 403. a support; 404. connecting a pallet fastener; 405. connecting the supporting plate; 406. a protrusion; 407. counter bore

A specific embodiment;

the invention will be further described with reference to specific embodiments:

as shown in fig. 1 to 3, the utility model provides a laminating machine lamination assembly, this laminating machine include as the upper case 100 of the first half of press and as the lower case 200 of the lower half of press, the upper case includes upper cover 101 and flange formula frame 104, the flange formula frame sets up in the below of upper cover, fixes on the upper cover through flange locking mechanism 103, is provided with the cavity sealing strip 106 as the sealing member between upper cover and flange formula frame. The lower case is provided with a heating table 201, a heat-resistant rubber plate serving as an elastic pressing member 113 is provided between the heating table and the flange frame, and the upper cover 101, the heating table 201 and the flange frame 104 form a sealed chamber 300 when the upper case and the lower case are closed. An elastic pressing piece 113 is arranged between the flange type frame 104 and the upper cover 101, the flange type frame 104 is pressed on the elastic pressing piece 113 and is in sealing connection with the elastic pressing piece, the flange type frame is fixed on the peripheral portion of the upper cover through a flange locking mechanism 103 such as a clamp and the like and tightly presses the elastic pressing piece, the elastic pressing piece 113 divides a working cavity into an upper chamber 114 and a lower chamber 206 which are mutually independent, the upper chamber 114 is used for inflating to load pressure on the elastic pressing piece, the lower chamber 206 is used for receiving at least one workpiece and can be vacuumized, the lower chamber is vacuumized and/or the upper chamber is inflated to generate a pressure difference between the upper chamber and the lower chamber, so that the resultant force applied to the elastic pressing piece is pressure towards the workpiece, and the elastic pressing piece is indirectly pressed to the surface of the workpiece. In the lower chamber, a hard pressing mechanism 400 is arranged below the elastic pressing member, the hard pressing mechanism comprises a hard pressing plate 401 and a buffer supporting device for supporting the hard pressing plate, the periphery or two opposite sides of the hard pressing plate are connected with the buffer supporting device, the hard pressing plate 401 is arranged below the elastic pressing member and above the heating workbench, the working surface of the hard pressing plate faces the working surface of the heating workbench 201 and is arranged opposite to the heating workbench 201, the buffer supporting device is provided with a telescopic structure which can be telescopic according to requirements so as to drive the hard pressing plate to move towards or away from the heating workbench, the position of the buffer supporting device is mutually avoided with the positions of the lower high-temperature cloth and the upper high-temperature cloth arranged above the heating workbench, the buffer supporting device is prevented from interfering the normal transmission of the lower high-temperature cloth as a conveying belt when the high-temperature cloth conveys the laminated assembly 203, and preferably, the buffer supporting device is arranged on the inner side of the flange type frame, The heating table is supported by a support body 403 arranged on the inner side wall of the flange type frame, and moves up and down to approach or separate from the heating table along with the movement of the upper cover. The supporting body can be a continuous or discontinuous platform arranged along the inner side wall of the flange type frame, and can also be a boss extending outwards from the inner side wall, so that the buffer supporting device can be stably supported. Preferably, the hard platen is connected to the cushioned support means by a connecting bracket 405.

The buffer support device is preferably a compression spring, one end of the compression spring is fixed on the upper surface of the supporting body, and the other end of the compression spring is connected with the hard pressing plate 401 or connected with the hard pressing plate 401 through a connecting supporting plate. Preferably, a sinking platform is arranged on the surface of the hard pressing plate opposite to the elastic pressing piece, the height of the sinking platform is equal to the thickness of the connecting supporting plate, one end of the connecting supporting plate is positioned in the sinking platform and fixedly connected with the hard pressing plate through a connecting supporting plate fastening piece 404, the surface of the other end of the connecting supporting plate facing the heating workbench is provided with a bulge 406, and the bulge 406 is arranged in a spring ring of the compression spring 402. In order to increase the stability of the connection, a counter bore 407 is arranged at the position of the connecting supporting plate opposite to the protrusion, the protrusion is positioned in the counter bore 407 and is higher than the counter bore, the upper end of the spring is positioned in the counter bore, and the protrusion is positioned in the spring ring. Adopt the connection layer board to connect buffering strutting arrangement and hard clamp plate and compare hard clamp plate and be directly be connected with buffering strutting arrangement and have following advantage, can reduce the installation degree of difficulty, reduce the whole weight of hard clamp plate, easily change the maintenance.

The buffer supporting device can also be an elastic cushion or an air cylinder or a hydraulic cylinder, and can provide support for the hard pressing plate when the hard pressing plate is in a non-working state, and can contract when the hard pressing plate is in a working state and is subjected to the pressure of the elastic pressing piece and conducts the pressure so as to reduce the distance between the hard pressing plate and the heating workbench, so that the hard pressing plate can apply pressure to a workpiece, and the hard pressing plate can be driven to reset when the pressure on the hard pressing plate is reduced or eliminated.

When the buffering supporting device adopts the air cylinder or the hydraulic cylinder, the cylinder body is arranged above the supporting body, the end part of the piston rod is fixedly connected with the connecting supporting plate, and the plurality of hydraulic cylinders and the air cylinders are arranged along the inner side of the flange type frame to provide multi-point support for the hard pressing piece. A pipeline channel is arranged on the flange type frame or the upper cover, so that the medium pipe can conveniently enter and exit the cavity to be connected with the cylinder body.

The heating workbench is provided with vent holes 202 at the inner side of the flange type frame, the upper cover is provided with an upper inflation channel communicated with the upper inflation through pipeline 102, the upper cover and the flange type frame are connected by adopting clamps, so that the elastic pressing piece is fixed on the upper cover, and the clamps are uniformly arranged at the periphery of the upper cover and the flange type frame, so that the clamping force is more uniform.

In the above embodiment, the elastic pressing member is preferably spaced apart from the hard platen by a distance H in an opened state or in a closed state without pressing, the distance H being preferably such that the elastic pressing member does not contact the hard platen when it is extended downward by pressure after the evacuation of the chamber or the hard platen is not contacted by a descending distance of the hard platen although it is contacted by the hard platen. The distance H is set between the upper chamber and the lower chamber and is smaller than the displacement of the elastic pressing piece stretching downwards in the vacuum state of the lower chamber, and when the lower chamber is vacuumized, the elastic pressing piece can be prevented from pressing the hard pressing plate to increase the load of the buffer supporting device. Set up distance H between hard clamp plate and elasticity and execute the casting die and can prevent that elasticity from executing casting die adhesion hard clamp plate when the evacuation of lower chamber, elasticity is executed casting die and is easily broken away from with hard clamp plate when the evacuation of upper chamber, and elasticity is executed casting die and is not fragile, and the life of multiplicable elasticity is executed casting die.

The upper high temperature cloth is conveyed by the upper high temperature cloth conveying device arranged on the upper cover, and the lower high temperature cloth is conveyed by the lower high temperature cloth conveying device arranged on the lower box body.

The utility model discloses a laminator theory of operation as follows:

1. the upper cover 101 is opened, the lower high-temperature cloth 204 and the upper high-temperature cloth 108 are driven by the high-temperature cloth conveying device to enter the space between the upper box and the lower box, and meanwhile, the laminated assembly 203 is conveyed by the lower high-temperature cloth conveying device to the space between the upper cover and the lower box to be positioned above the heating workbench 201.

2. And closing the upper cover, completely sealing the flange type frame and the lower box body by the cavity sealing strip 106 and the frame sealing strip 105 to form a sealed cavity 300 between the upper box and the lower box body, when the heating workbench 201 heats the laminated assembly 203 until the packaging material of the assembly is completely melted, vacuumizing the lower chamber 206 through a vent hole, pumping out all mixed gas in the lower chamber through a vent hole 202 arranged on the heating workbench 201 by a vacuum pump, and reaching a limit vacuum state, wherein at the moment, the hard pressing plate 401 is supported by the buffer supporting device and does not contact the laminated assembly 203.

3. In the vacuum state of the lower chamber 206, the control valve of the upper inflation pipeline 102 is opened according to the process requirement, air is filled into the upper chamber, the high temperature resistant rubber plate serving as the elastic pressing piece moves downwards to press the hard pressing plate, the hard pressing plate is pushed to overcome the elastic force of the compression spring 402 serving as the buffer supporting device to contact the upper part of the laminated assembly 203, and uniform process pressure is applied to the laminated assembly.

4. After the process pressure and the process time are reached, air is filled into the lower chamber through the vent hole 202 of the heating workbench 201, meanwhile, the upper chamber is exhausted, and a state that no pressure difference exists between the inside of the sealing cavity and the outside is reached, the pressure of the elastic pressing piece on the elastic pressing piece reset hard pressing plate disappears, and the hard pressing plate is separated from the upper part of the laminated assembly 203 and returns to the initial position under the elastic force of the compression spring 402.

5. The upper cover is opened, the power transmission system drives the lower high-temperature cloth 6 and the upper high-temperature cloth 8 to move out of the lower chamber, the laminated assembly 203 is moved out of the lower chamber, and the laminating process is finished.

Claims

1. The utility model provides a hard mechanism of pressing in lamination chamber which characterized in that, hard mechanism include hard clamp plate and buffering strutting arrangement, support hard clamp plate through buffering strutting arrangement, hard clamp plate transversely sets up, buffering strutting arrangement can stretch out or contract along with the size change of the external force that hard clamp plate received to make hard clamp plate at vertical aversion or reset.

2. The laminating chamber hard pressing mechanism according to claim 1, wherein the hard pressing plate is connected to the buffer support device through a connection supporting plate, one end of the connection supporting plate is connected to the hard pressing plate, the other end of the connection supporting plate is connected to the buffer support device, and a plurality of buffer support devices are respectively arranged along two opposite sides or four sides of the hard pressing plate.

3. The laminating chamber hard pressing mechanism according to claim 1, wherein the buffer supporting means is a compression spring, the upper end of the compression spring is connected to the hard pressing plate, the upper surface of the hard pressing plate is provided with a sinking platform, the depth of the sinking platform is equal to the thickness of the connecting supporting plate, one end of the connecting supporting plate is connected to the hard pressing plate, the other end of the connecting supporting plate is connected to the upper end of the compression spring, and a plurality of compression springs are respectively arranged along two opposite sides or the periphery of the hard pressing plate.

4. The laminating chamber hard press mechanism according to claim 3, wherein the hard press plate has a sunken platform on an upper surface thereof, the sunken platform has a depth equal to a thickness of the connecting support plate, and the connecting support plate has a lower surface provided with a number of protrusions corresponding to the number of the compression spring positions, the protrusions being located in the spring ring of the compression spring.

5. The laminating chamber hard-press mechanism of claim 4, wherein a counter-bore is disposed at a location corresponding to the protrusion, the protrusion is disposed within the counter-bore, and an upper end of the compression spring is disposed within the counter-bore.

6. A laminating assembly of a laminating machine, comprising an upper box (100) consisting of an upper cover (101) and a flange type frame (104), a heating workbench (201) positioned in a lower box and an elastic pressing piece (113), wherein the elastic pressing piece is fixedly arranged between the upper cover (101) and the flange type frame (104), the upper cover and the flange type frame are fixedly connected through a flange locking mechanism (103) in a locking way, the elastic pressing piece is fixed between the upper cover and the flange type frame, when the upper cover and the heating workbench are tightly closed through the flange type frame and a sealing piece, the elastic pressing piece divides a sealing cavity consisting of the upper cover, the flange type frame and the heating workbench into an upper chamber (114) and a lower chamber (206) which are mutually and independently sealed, and the laminating assembly is characterized in that a laminating cavity hard pressing mechanism as claimed in one of claims 1 to 5 is arranged in the lower chamber, and the hard pressing piece is positioned above the heating workbench, And the buffering and supporting devices are arranged along two sides or the periphery of the inner side of the flange type frame.

7. The laminator lamination assembly of claim 6, wherein the upper cover includes an upper inflation channel and the heating stage includes a vent.

8. Laminator lamination assembly according to claim 6 or 7, wherein supports (403) extending transversely into the lower chamber are provided on two or all around side walls of the inner side of the flange frame, said buffer support means being fixedly arranged on said supports.

9. The laminator lamination assembly of claim 6 or 7, wherein the cushioned support arrangement provides support for the rigid platen when the rigid platen is in a natural position, and is collapsible to reduce the distance between the rigid platen and the heating platen when the rigid platen is subjected to the pressure of the resilient press and conducts the pressure so that the rigid platen presses against the workpiece and is returned to its original position when the pressure on the rigid platen is reduced or eliminated.

10. The laminator lamination assembly of claim 6 or 7, wherein the resilient press member is spaced apart from the rigid press member by a distance H in a natural state.