Soldering flux coating mechanism and series welding machine

Abstract

The utility model relates to a soldering flux coating mechanism and a series welding machine, the soldering flux coating mechanism comprises a supporting seat, a charging barrel and a clamping jaw assembly, the charging barrel is arranged on the supporting seat, and the charging barrel is used for containing soldering flux; the multiple clamping jaw assemblies are arranged on the supporting base at intervals, and each clamping jaw assembly is provided with a clamping opening used for clamping a welding strip. The coating head is arranged in the clamping opening, and the coating head is connected with the charging barrel, so that scaling powder is adsorbed on the coating head; when the clamping jaw assembly clamps the welding strip, the coating head arranged in the clamping opening abuts against the welding strip so as to coat scaling powder on the welding strip. The coating head is arranged in the clamping opening of the clamping jaw assembly, so that when the clamping jaw assembly clamps the welding strip, the corresponding position of the welding strip is coated with the scaling powder adsorbed on the coating head. The coating head capable of adsorbing the soldering flux is in contact with the welding strip, so that the soldering flux is in complete contact with the welding strip, only the position, in contact with the coating head, of the welding strip is coated with the soldering flux, the usage amount of the soldering flux is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of string welding machines, in particular to a flux coating mechanism and a string welding machine. Background Art

[0002] During the production of photovoltaic cells, the cells need to be connected in series with welding ribbons. A stringer is the equipment that realizes this process. Conventional stringers need to use flux when welding the welding ribbons to the cells. The welding ribbons pass through a box containing flux when they are sent to the cells, so that the welding ribbons are stained with flux. After the welding module in the stringer goes through processes such as welding ribbon positioning and high temperature, they are welded to the cells.

[0003] In the existing technology, the soldering ribbon on the current battery stringing machine needs to pass the soldering ribbon through a material box containing the flux when it is coated with flux. The soldering ribbon will be covered with flux, even the part that does not need to be welded to the battery cell will be covered with flux, resulting in a waste of flux. Utility Model Content

[0004] Based on this, it is necessary to provide a flux coating mechanism and a string soldering machine to address the technical problem that the solder ribbon clamping mechanism in the prior art easily causes flux crystal accumulation and affects the positioning accuracy.

[0005] A flux coating mechanism, comprising:

[0006] Support seat;

[0007] A barrel is provided on the support seat and is used to hold flux;

[0008] A plurality of clamping jaw assemblies are spaced apart and arranged on the support base, each of the clamping jaw assemblies is configured with a clamping opening for clamping the welding strip;

[0009] A coating head is disposed in the clamping port, and the coating head is connected to the barrel so that the flux is adsorbed on the coating head;

[0010] When the clamping jaw assembly clamps the soldering ribbon, the coating head disposed in the clamping opening presses against the soldering ribbon to coat the soldering flux on the soldering ribbon.

[0011] In one embodiment, the flux coating mechanism further comprises:

[0012] A connecting pipeline, one end of which is connected to the barrel, and the other end of which is connected to the coating head.

[0013] In one embodiment, the coating head is configured as a porous soft material.

[0014] In one embodiment, a boost valve is provided on the connecting pipeline to control the flow of the flux.

[0015] In one embodiment, the connecting pipe is configured as a transparent pipe.

[0016] In one embodiment, each of the jaw assemblies comprises:

[0017] A clamping jaw seat, one end of which is fixedly connected to the support seat;

[0018] The two clamping jaws are oppositely arranged on the clamping jaw seat, and the clamping opening is defined between the two clamping jaws. The clamping opening can be closed or opened to clamp the welding strip.

[0019] In one embodiment, the clamping jaw seat includes a pneumatic finger, the clamping jaw is connected to the pneumatic finger, and the pneumatic finger is used to drive the clamping jaw to open and close.

[0020] In one embodiment, a liquid level detector is provided on the barrel for detecting the liquid level height of the soldering flux in the barrel.

[0021] In one embodiment, a plurality of the clamping jaw assemblies are distributed in an array on the support base, and a row of the clamping jaw assemblies is used to clamp one of the welding strips.

[0022] A stringer includes the flux coating mechanism described above.

[0023] Beneficial effects of the utility model:

[0024] The utility model provides a flux coating mechanism, in which a support seat is used to connect and support components such as a barrel, a clamping jaw assembly and a coating head. The barrel is used to accommodate flux so as to provide flux to the coating head. The clamping jaw assembly is used to clamp the welding ribbon, and the coating head is arranged in the clamping opening of the clamping jaw assembly, so that when the clamping jaw assembly clamps the welding ribbon, the flux adsorbed on the coating head can be applied to the corresponding position of the welding ribbon with the flux. Through the above structural form, the coating head that can adsorb flux is in contact with the welding ribbon, so that the flux and the welding ribbon are in full contact, so that only the position where the welding ribbon contacts the coating head is coated with flux, thereby reducing the amount of flux used and cutting down operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of a flux coating device provided by an embodiment of the present invention along the spacing direction of the solder strips;

[0026] Figure 2 A cross-sectional view of a flux coating device provided by an embodiment of the present invention along the extending direction of the soldering ribbon;

[0027] Figure 3 This is a top view of the flux coating device provided in one embodiment of the present invention after placing the solder ribbon on the battery cell.

[0028] Reference numerals:

[0029] Support base 100; barrel 200; clamping jaw assembly 300; clamping jaw base 310; pneumatic finger 311; clamping jaw 320; coating head 400; connecting pipe 500; battery cell 600; welding point 610; welding ribbon 700. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0036] See Figures 1 to 3 An embodiment of the present invention provides a flux coating mechanism, which includes a support base 100, a barrel 200 and a clamping jaw assembly 300. The barrel 200 is arranged on the support base 100, and the barrel 200 is used to hold flux; a plurality of clamping jaw assemblies 300 are arranged at intervals on the support base 100, and each clamping jaw assembly 300 is constructed with a clamping opening for clamping a welding ribbon 700; a coating head 400 is arranged in the clamping opening, and the coating head 400 is connected to the barrel 200 so that the flux is adsorbed on the coating head 400; wherein, when the clamping jaw assembly 300 clamps the welding ribbon 700, the coating head 400 arranged in the clamping opening is pressed against the welding ribbon 700 to coat the flux on the welding ribbon 700.

[0037] The present technical solution provides a flux coating mechanism, in which the support seat 100 is used to connect and support components such as the barrel 200, the clamping jaw assembly 300 and the coating head 400. The barrel 200 is used to accommodate flux so as to provide flux to the coating head 400. The clamping jaw assembly 300 is used to clamp the soldering ribbon 700, and the coating head 400 is arranged in the clamping opening of the clamping jaw assembly 300, so that when the clamping jaw assembly 300 clamps the soldering ribbon 700, the flux adsorbed on the coating head 400 is applied to the corresponding position of the soldering ribbon 700. Through the above structural form, the coating head 400 that can adsorb flux is in contact with the soldering ribbon 700, so that the flux is in full contact with the soldering ribbon 700, so that only the position where the soldering ribbon 700 contacts the coating head 400 is coated with flux, thereby reducing the amount of flux used and reducing operating costs.

[0038] Specifically, if Figure 1 As shown, the barrel 200 is fixedly connected to the top surface of the support base 100, and the clamping jaw assembly 300 is disposed on the bottom surface of the support base 100. There is no limit to the number of clamping jaw assemblies 300. Multiple clamping jaw assemblies 300 can simultaneously clamp a welding ribbon 700, with each clamping jaw assembly 300 corresponding to a welding point on the welding ribbon 700. Alternatively, the clamping jaw assemblies 300 can be divided into multiple groups, each group including multiple clamping jaw assemblies 300. The multiple clamping jaw assemblies 300 in each group of clamping jaw assemblies can simultaneously clamp a welding ribbon 700, with each clamping jaw assembly 300 in each group corresponding to a welding point on the welding ribbon 700.

[0039] like Figure 1 As shown, in one embodiment, the flux coating mechanism further includes a connecting pipe 500, one end of the connecting pipe 500 is connected to the barrel 200, and the other end is connected to the coating head 400. The barrel 200 and the coating head 400 are connected through the connecting pipe 500, so that the flux in the barrel 200 can flow to the coating head 400 through the connecting pipe 500, so that the coating head 400 is adsorbed with the flux, so that when the clamping jaw assembly 300 clamps the welding ribbon 700, the flux on the coating head 400 can be coated on the corresponding position of the welding ribbon 700, thereby facilitating the welding of the welding ribbon 700 and the battery cell 600.

[0040] Moreover, through the above method, the flux on the coating head 400 can be quantitatively coated on the soldering strip 700, and other parts except the coating head 400 are not coated with flux, thereby greatly reducing the use of flux and further reducing production costs.

[0041] Furthermore, the coating head 400 is configured to be a porous soft material. The coating head 400 adopts a soft porous material, so that the flux transported through the connecting pipe 500 can be adsorbed in the pores of the coating head 400, which can effectively reduce the contact between the flux and the air, thereby preventing the risk of the flux being oxidized. The coating head 400 adopts a soft material, so that when the clamping jaw assembly 300 clamps the welding ribbon 700, the welding ribbon 700 is clamped between the two coating heads 400, which will not cause the welding ribbon 700 to deform, thereby ensuring the correspondence between the welding ribbon 700 and the welding point 610 of the battery cell 600, thereby improving the battery performance. Specifically, the coating head 400 can be made of foam or other soft adsorbent materials.

[0042] In one embodiment, a booster valve is provided on the connecting line 500 to control the flow of the flux. By providing the booster valve on the connecting line 500 to increase the pressure in the connecting line 500, the flux in the barrel 200 can flow more efficiently into the connecting line 500, thereby ensuring that there is sufficient flux in the coating head 400. Furthermore, the booster valve can also ensure the flow of flux, allowing the flux to be adsorbed onto the coating head 400 in a quantitative manner according to actual needs.

[0043] Furthermore, the connecting pipe 500 is constructed as a transparent pipe. Setting the connecting pipe 500 as a transparent pipe allows for direct observation of whether there is flux in the connecting pipe 500, thereby ensuring the reliability of the flux adsorbed by the coating head 400, thereby ensuring that the corresponding flux is coated on each welding point of the welding ribbon 700, and thus ensuring the welding quality between the welding ribbon 700 and the battery cell 600.

[0044] like Figure 1 and Figure 2 As shown, in one embodiment, each clamping jaw assembly 300 includes a clamping jaw seat 310 and a clamping jaw 320, one end of the clamping jaw seat 310 is fixedly connected to the support seat 100; the two clamping jaws 320 are relatively arranged on the clamping jaw seat 310, and the two clamping jaws 320 enclose a clamping opening, which can be closed or opened to clamp the welding strip 700.

[0045] The clamping jaw base 310 is used to connect the clamping jaw 320 and the support base 100, and the clamping jaw base 310 is used to support the clamping jaw 320. By providing two opposing clamping jaws 320 on the clamping jaw base, a clamping opening is formed between the two clamping jaws 320, so that the welding ribbon 700 can be clamped by closing the clamping opening, and the welding ribbon 700 can be placed at the corresponding position of the battery cell 600 by opening the clamping opening.

[0046] It can be understood that a coating head 400 is provided on each clamping jaw 320, and the two coating heads 400 are arranged opposite to each other. When the two clamping jaws 320 clamp the solder strip 700, the solder strip 700 is located between the two coating heads 400, so that the coating head 400 adsorbed with flux can coat the flux on the solder strip 700.

[0047] Specifically, the clamping jaws 320 are provided with a plurality of spaced apart limiting protrusions on both sides along the clamping direction, and the coating head 400 is provided with a mounting groove that is sleeved on the clamping jaws 320. The limiting protrusions on the clamping jaws 320 limit the coating head 400, thereby facilitating replacement of the coating head 400. Of course, in other embodiments, the coating head 400 can also be fixedly connected to the clamping jaws 320 by gluing.

[0048] like Figure 1 and Figure 2 As shown, in one embodiment, the gripper base 310 includes a pneumatic finger 311, to which the gripper 320 is connected. The pneumatic finger 311 is used to drive the gripper 320 to open and close. By connecting the gripper 320 to the pneumatic finger 311 of the gripper base 310, the pneumatic finger 311 drives the gripper 320 to open or close, thereby simplifying the structure and improving the driving precision.

[0049] In one embodiment, a liquid level detector is provided on the barrel 200 for detecting the liquid level of the soldering flux in the barrel 200. By providing the liquid level detector on the barrel 200 to detect the liquid level of the soldering flux in the barrel 200, it is determined whether the soldering flux in the barrel 200 is insufficient by the liquid level detector, thereby ensuring the normal operation of the entire soldering flux coating mechanism.

[0050] In one embodiment, multiple clamping assemblies 300 are arranged in an array on the support base 100, with one row of clamping assemblies 300 being used to clamp one solder ribbon 700. By disposing multiple clamping assemblies 300 in an array on the support base 100, a single flux coating mechanism can clamp multiple solder ribbons 700, with each clamping assembly 300 corresponding to a soldering point on the solder ribbon 700, thereby improving the efficiency of flux coating on the solder ribbon 700.

[0051] One embodiment of the present invention further provides a stringer, comprising the above-described flux coating mechanism. By using the above-described flux coating mechanism in the stringer, the support base 100 in the flux coating mechanism is used to connect and support components such as the barrel 200, the clamping jaw assembly 300, and the coating head 400. The barrel 200 is used to accommodate flux so as to provide flux to the coating head 400. The clamping jaw assembly 300 is used to clamp the soldering ribbon 700, and the coating head 400 is disposed within the clamping opening of the clamping jaw assembly 300, so that when the clamping jaw assembly 300 clamps the soldering ribbon 700, the flux adsorbed on the coating head 400 can be applied to corresponding positions of the soldering ribbon 700. Through the above structure, the coating head 400 that can absorb flux is in contact with the solder strip 700, so that the flux is in complete contact with the solder strip 700, so that only the position where the solder strip 700 contacts the coating head 400 is coated with flux, thereby reducing the amount of flux used and reducing operating costs.

[0052] The flux coating mechanism provided by the present invention has a coating head 400 mounted on a clamping jaw 320. Before the soldering ribbon 700 is clamped onto the battery cell 600, the soldering ribbon 700 is clamped by the clamping jaw 320. The soldering flux is delivered to the clamping jaw 320 provided with a pipeline through the connecting pipe 500. The coating head 400 absorbs the soldering flux. After the pneumatic finger 311 contracts, the clamping jaw 320 closes, so that the coating heads 400 mounted on the two clamping jaws 320 contact and clamp the soldering ribbon 700, so that the soldering flux is applied. The agent is applied to the specified area of ​​the soldering ribbon 700. After a short contact time, the clamp 320 is released, and the soldering ribbon 700 is then transported to the battery cell 600 through the clamping mechanism. The coated area of ​​the soldering ribbon 700 corresponds to the position of the soldering point 610 of the battery cell 600. Even if the battery cell 600 is offset, compatibility can be achieved by increasing the coating head 400. The position of the entire clamp 320 can be adjusted through the clamp seat 310 to be compatible with different soldering points 610 positions and grid line spacing.

[0053] The connecting pipe 500 is made of a transparent material, allowing visual inspection of the flux shortage within the pipe. The barrel 200 can also be equipped with a level gauge to detect the lack of flux. During flux delivery, the flux is pumped into the pipe by gravity or pressure. A fixed amount of flux is supplied each time, ensuring a consistent amount of flux is applied to the solder ribbon 700. This ensures that a fixed amount of flux is delivered to the coating head 400. Because the coating head 400 is made of foam or other soft absorbent material, the flux will not drip after adsorbing it, making it easy to clean and reuse.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A flux coating mechanism, characterized in that: The flux coating mechanism comprises: Support seat; A barrel is provided on the support seat and is used to hold flux; A plurality of clamping jaw assemblies are spaced apart and arranged on the support base, each of the clamping jaw assemblies is configured with a clamping opening for clamping the welding strip; A coating head is disposed in the clamping port, and the coating head is connected to the barrel so that the flux is adsorbed on the coating head; When the clamping jaw assembly clamps the soldering ribbon, the coating head disposed in the clamping opening presses against the soldering ribbon to coat the soldering flux on the soldering ribbon.

2. The flux coating mechanism according to claim 1, wherein: The flux coating mechanism also includes: A connecting pipeline, one end of which is connected to the barrel, and the other end of which is connected to the coating head.

3. The flux coating mechanism according to claim 2, wherein: The coating head is configured to be made of a porous soft material.

4. The flux coating mechanism according to claim 2, wherein: A boost valve is provided on the connecting pipeline to control the flow of the soldering flux.

5. The flux coating mechanism according to claim 2, wherein: The connecting line is configured as a transparent line.

6. The flux coating mechanism according to claim 1, wherein: Each of the clamping jaw assemblies comprises: A clamping jaw seat, one end of which is fixedly connected to the support seat; The two clamping jaws are oppositely arranged on the clamping jaw seat, and the clamping opening is defined between the two clamping jaws. The clamping opening can be closed or opened to clamp the welding strip.

7. The flux coating mechanism according to claim 6, characterized in that: The clamping jaw seat includes a pneumatic finger, the clamping jaw is connected to the pneumatic finger, and the pneumatic finger is used to drive the clamping jaw to open and close.

8. The flux coating mechanism according to claim 1, wherein: The barrel is provided with a liquid level detector for detecting the liquid level height of the soldering flux in the barrel.

9. The flux coating mechanism according to any one of claims 1 to 8, characterized in that: A plurality of the clamping jaw assemblies are distributed in an array on the support base, and a row of the clamping jaw assemblies is used to clamp one welding strip.

10. A string welding machine, characterized in that: The stringer comprises the flux coating mechanism according to any one of claims 1 to 9.

Images