Annealing water tank for preparing photovoltaic welding ribbon

Abstract

The present invention discloses an annealing water tank for preparing photovoltaic welding strips, comprising: a water tank body for storing water for annealing; a water replenishing mechanism for quickly replenishing water in the water tank body; a liquid level sensor for sensing the liquid level height in the water tank body, and triggering the water replenishing mechanism when the liquid level is lower than the minimum liquid level; by adding the water replenishing mechanism, the water tank body is quickly replenished with water to avoid the liquid level being too low and failing to meet the annealing requirements of the photovoltaic welding strips. The water tank door in the water replenishing mechanism is closed by cooperating with a connecting rod and a jack, and the electromagnet is cleverly used as an actuator to drive the pry plate to swing. When the water tank door needs to be opened, the electromagnet is controlled to be energized to generate suction, and the power can be cut off after the pry plate is tilted, which saves resources, and the water tank door opens quickly and has high reliability. The water replenishing water tank is swung and connected to the water tank body. When the water replenishing area is filled with water too quickly, the water storage area drops and the water replenishing area rises, so as to avoid the liquid in the water replenishing area from overflowing to one end of the water replenishing area.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic solder ribbon manufacturing, and particularly to an annealing water tank for preparing photovoltaic solder ribbon. Background Art

[0002] In the process of preparing photovoltaic solder ribbon, it is necessary to immerse the high-temperature solder ribbon in water for annealing. During the annealing process, the water in the annealing water tank gradually decreases; therefore, it is necessary to continuously replenish water into the water tank. The existing method is to have an operator inject water after a certain period of time. However, with the above method, the operator may forget, which will affect the annealing effect of the solder ribbon and thus affect the quality of the solder ribbon. Summary of the Invention

[0003] Aiming at the deficiencies of the above prior art, the main object of the present invention is to overcome the deficiencies of the prior art, and discloses an annealing water tank for preparing photovoltaic solder ribbon, including:

[0004] A water tank body for storing water for annealing;

[0005] A water replenishing mechanism for quickly replenishing water in the water tank body;

[0006] A liquid level sensor for sensing the liquid level height in the water tank body, and triggering the water replenishing mechanism when it is lower than the lowest liquid level;

[0007] The water replenishing mechanism includes a water replenishing water tank, a water tank door, a connecting rod, a connecting piece, a crowbar and an actuator. A water replenishing port and a regulating valve are arranged on the water replenishing water tank, and the regulating valve is used to control the water replenishing speed. The water tank door is hinged at the water replenishing port for opening and closing the water replenishing port. The crowbar is rotatably arranged on the water replenishing water tank. A jack is arranged at the bottom of the water replenishing water tank. One end of the connecting rod is connected to the crowbar, and the other end is detachably arranged in the jack. The connecting piece connects the water tank door and the connecting rod, and the actuator is used to pry the crowbar to swing.

[0008] Further, a partition is arranged in the water replenishing water tank to form a water replenishing area and a water storage area. A first overflow port connecting the water replenishing area and the water storage area is arranged on the partition. The annealing water tank is swingably arranged on the water tank body, and a limiting block is arranged below the water replenishing water tank to limit the swing amplitude of the water replenishing water tank by using the limiting block.

[0009] Further, the swing angle range of the water replenishing water tank is between -15° and 15°.

[0010] Further, a touch switch is arranged on the limiting block, and the touch switch is controlled to be opened and closed by the water replenishing water tank.

[0011] Further, the distance from the swing center of the water replenishing tank to the end of the water replenishing area is less than the distance from the swing center of the water replenishing tank to the end of the water storage area.

[0012] Further, a second overflow port is provided on the side wall of the water storage area.

[0013] Further, the connecting rod is rotatably connected to the crowbar.

[0014] Further, the partition is detachably installed in the water replenishing tank.

[0015] Further, a liquid level indicating tube is further included. The liquid level indicating tube is communicated with the water tank body to form a U-shaped tube, and the liquid level sensor is installed on the liquid level indicating tube.

[0016] Further, the actuator is an electromagnet.

[0017] Beneficial effects achieved by the present invention:

[0018] By adding a water replenishing mechanism, the present invention can quickly replenish water into the water tank body, avoiding too low liquid level and being unable to meet the annealing requirements of the photovoltaic solder ribbon. The water tank door in the water replenishing mechanism is closed through the cooperation of the connecting rod and the jack. The electromagnet is cleverly used as the actuator to drive the crowbar to swing. When the water tank door needs to be opened, the electromagnet is controlled to be energized to generate suction force. After the crowbar is lifted, the power can be cut off, saving resources. Moreover, the opening response of the water tank door is fast and the reliability is high. The water replenishing tank is swingably connected to the water tank body. When the water injection in the water replenishing area is too fast, the water storage area drops and the water replenishing area rises, avoiding the liquid in the water replenishing area from overflowing to one end of the water replenishing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of an annealing water tank for preparing photovoltaic solder ribbon according to the present invention;

[0020] Figure 2 is a three-dimensional structural schematic diagram of another perspective of an annealing water tank for preparing photovoltaic solder ribbon according to the invention;

[0021] The reference numerals are as follows:

[0022] 1. Water tank body, 2. Water replenishing mechanism, 3. Liquid level sensor, 4. Liquid level indicating tube, 21. Water replenishing tank, 22. Water tank door, 23. Connecting rod, 24. Connecting piece, 25. Crowbar, 26. Actuator, 27. Partition, 28. Limit block, 211. Water replenishing port, 212. Water replenishing hole, 213. Water replenishing area, 214. Water storage area, 215. Second overflow port, 271. First overflow port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] An annealing water tank for preparing a photovoltaic solder ribbon, as Figure 1-2 shown, includes:

[0025] A water tank body 1 for storing water for annealing;

[0026] A water replenishing mechanism 2 for quickly replenishing water in the water tank body;

[0027] A liquid level sensor 3 for sensing the liquid level height in the water tank body 1, and triggering the water replenishing mechanism 2 when the liquid level is lower than the lowest liquid level.

[0028] Specifically, the water replenishing mechanism 2 includes a water replenishing tank 21, a water tank door 22, a connecting rod 23, a connecting member 24, a pry bar 25 and an actuator 26. A water replenishing port 211 and a water replenishing hole 212 are formed on one side wall of the water replenishing tank 21. The water tank door 22 is hinged at the water replenishing port 211, and the water replenishing port 211 is opened and closed by the water tank door 22; when the water tank door 22 is opened, the water in the water replenishing tank 21 is quickly replenished into the water tank body 1 through the water replenishing port 211. In addition, the water in the water replenishing tank 22 is evenly replenished into the water tank body 1 through the water replenishing hole 212. Preferably, a regulating valve (not shown) can be provided, and the regulating valve is installed at the water replenishing hole 212 to adjust the water replenishing speed. The pry bar 25 is rotatably arranged on the water replenishing tank 21. A jack is provided at the bottom of the water replenishing tank 21. One end of the connecting rod 23 is connected to the pry bar 25, and the other end is detachably arranged in the jack. The connecting member 24 connects the water tank door 22 and the connecting rod 23, and the actuator 26 is used to pry the pry bar 25 to swing. When the water tank door 22 needs to be closed, since the water tank door 22 and the connecting rod 23 are connected by the connecting member 24, the connecting rod 23 is inserted into the jack, and a closing traction force is provided to the water tank door 22 through the connecting member 24. Among them, the connecting member 24 can be selected from elastic components, such as springs, rubber bands, etc. As long as it can ensure that the water tank door 22 is closed, it can be used as the connecting member 24.

[0029] In the above embodiment, as Figure 1-2 shown, the water replenishing tank 21 can be inclined to increase the water replenishing speed.

[0030] In one embodiment, as Figure 1-2As shown in the figure, a partition plate 27 is provided in the water replenishing tank 21, forming a water replenishing area 213 and a water storage area 214. A first overflow port 271 connecting the water replenishing area 213 and the water storage area 214 is provided on the partition plate 27. The annealing water tank 21 is swingably arranged on the water tank body 1, and a limiting block 28 is provided below the water replenishing tank 21 to limit the swing amplitude of the water replenishing tank 21 by means of the limiting block 28. First, the water replenishing tank 21 is swingably arranged so that the water replenishing tank 21 can adjust the tilting angle and tilting direction. Secondly, the water replenishing area 213 is set to determine the amount of water for rapid water replenishment. While continuously replenishing water to the water tank body 1 through the regulating valve, the water replenishing area 213 is also continuously replenished with water. When the amount of water is excessive, the water in the water replenishing area 213 flows into the water storage area 214 through the first overflow port 271 to prevent the water in the water replenishing area 213 from overflowing outside the water replenishing tank 21. When the water on one side of the water storage area 214 reaches a certain amount, the weight on the side of the water storage area 214 is greater than the weight on the side of the water replenishing area 213, and the water replenishing tank 21 swings to the other side, that is, the side wall of the water storage area 214 of the water replenishing tank 21 is lower than the side wall of the water replenishing area 213, so as to ensure that the water in the water replenishing tank 21 overflows from the side of the water storage area 214 and avoid affecting the normal use of the water tank body 1. The limiting block 28 has a concave structure, and the protruding parts at both ends are arranged on both sides of the swing shaft of the water replenishing tank 21 to realize the angle of swing of the water replenishing tank 21.

[0031] In the above embodiment, as Figure 1-2 shown, the swing angle range of the water replenishing tank 21 is between -15° and 15°. By limiting the swing angle, it is possible to prevent the inclination angle from being too large and reduce the water volume in the water replenishing tank 21.

[0032] In the above embodiment, as Figure 1-2 shown, a contact switch is provided on the limiting block 28, and the opening and closing of the contact switch are controlled by the water replenishing tank 21. Preferably, it can be used in conjunction with an alarm device at the same time. That is, when the contact switch is installed on the limiting block 28 on the side of the water storage area 214, when one end of the water storage tank 214 is heavier, this end swings downward to the contact switch, prompting the contact switch to send a signal to the PLC, so that the alarm device gives an alarm. Among them, the alarm device can be a buzzer, a warning light, etc. Of course, the contact switch can also be installed on the side of the limiting block 28 on the water replenishing area 213 side, that is, when the contact switch is in the open state, the alarm device will not be triggered; when the water replenishing tank 21 swings away from the contact switch, the contact switch changes from the open state to the closed state, thereby triggering the alarm device. Through the sound and light alarm, a fault warning is sent to the staff in a timely manner.

[0033] In the above embodiment, as Figure 1-2As shown in the figure, the distance from the swing center of the water replenishing tank 21 to the end of the water replenishing area 213 is less than the distance from the swing center of the water replenishing tank 21 to the end of the water storage area 214. Using the lever principle, the water storage area 214 stores less water than the water replenishing area 213, and the swing of the water replenishing tank 21 can be realized.

[0034] In the above embodiment, as Figure 1-2 shown, a second overflow port 215 is provided on the side wall of the water storage area 214. The second overflow port 215 is connected to other water storage devices through a hose to prevent the water in the water replenishing tank 21 from overflowing.

[0035] In the above embodiment, as Figure 1-2 shown, the connecting rod 23 is rotatably connected to the crowbar 25. When the connecting rod 23 is inserted into the jack, the connecting rod 23 is positioned through the crowbar 25 and the jack to pull the water tank door 22 closed; when the crowbar 25 is pulled upward by the driving force of the actuator 26, the connecting rod 23 is separated from the jack, and under the pressure of the water in the water replenishing area 213, the water tank door 22 is opened. By the rotational connection between the connecting rod 23 and the crowbar 25, the resistance to opening the water tank door 22 is reduced.

[0036] In the above embodiment, as Figure 1-2 shown, the partition 27 is detachably installed in the water replenishing tank 21. Specifically, slots are symmetrically arranged on the opposite side walls of the water replenishing tank 21, and slots are also provided at the bottom thereof. The partition 27 matches the slots to realize the plug-in installation of the partition 27.

[0037] In one embodiment, as Figure 1-2 shown, a liquid level indicating tube 4 is further included. The liquid level indicating tube 4 is communicated with the water tank body 1 to form a U-shaped tube, and the liquid level sensor 3 is installed on the liquid level indicating tube 4. By the independently provided liquid level indicating tube 4, the influence of the water fluctuation in the water tank body 1 on the liquid level detection is reduced.

[0038] In one embodiment, as Figure 1-2 shown, the actuator 26 is installed below the crowbar 25. The actuator 26 can be an electromagnet, and by attracting one end of the crowbar 25 with the electromagnet, the other end is lifted upward to pull out the connecting rod 23 from the jack.

[0039] Among them, a cover plate can be provided on the water replenishing tank 21 to prevent the water in the water replenishing tank 21 from sloshing and splashing out when the water replenishing tank 21 swings.

[0040] When the present invention is in use, as Figure 1-2As shown, in the initial state, the side of the water replenishing tank 21 with the water replenishing area 213 is inclined downward and supported on the supporting and limiting block 28. Water is filled into the water tank body 1, and at the same time, the water replenishing area 213 is filled with water at a constant speed. The water replenishing speed of the water replenishing tank 21 for the water tank body 1 is controlled by adjusting the regulating valve; preferably, the water injection speed of the water replenishing area 213 is the same as the water replenishing speed of the water replenishing area 213 for the water tank body 1. When the water replenishing speed of the water replenishing area 213 is too fast, after the liquid level in the water replenishing area 213 reaches a certain height, it flows into the water storage area 214 through the first overflow port 271 until the downward pressure of the water storage area 214 can lift the water replenishing area 213, and at the same time, the contact switch is opened, triggering the alarm device, and at the same time, the water injection into the water replenishing area 213 is stopped to prevent waste of water resources. If the staff cannot handle it in time, then, after use, the liquid level in the water tank body 1 gradually decreases. When the liquid level sensor 3 detects that the liquid level reaches the lowest point, the actuator 26 is triggered by the PLC to drive the pry plate 25 to tilt, so that the connecting rod 23 is separated from the jack. The water tank door 22 is opened, and the water in the water replenishing area 213 quickly replenishes the water tank body 1 through the water replenishing port 211. If the consumption speed of the water in the water tank body 1 is greater than the water replenishing speed, then, the liquid level in the water tank body 1 will also drop. When the liquid level drops to the lowest level, the actuator 26 will also be triggered to open the water tank door 26 for water replenishment.

[0041] The above are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention; if the present invention is modified or equivalently replaced without departing from the spirit and scope of the present invention, it should be covered by the protection scope of the claims of the present invention.

Claims

1. An annealing water tank for preparing photovoltaic welding ribbons, characterized in that: include: The water tank body is used to store water for annealing; A water replenishing mechanism, used for quickly replenishing the water in the water tank body; A liquid level sensor is used to sense the liquid level in the water tank body, and trigger a water replenishment mechanism when the liquid level is lower than the minimum liquid level; The water replenishment mechanism includes a water replenishment tank, a water tank door, a connecting rod, a connecting piece, a pry plate and an actuator. The water replenishment tank is provided with a water replenishment port and a regulating valve, and the regulating valve is used to control the water replenishment speed. The water tank door is hinged at the water replenishment port and is used to open and close the water replenishment port. The pry plate is rotatably arranged on the water replenishment tank. A socket is arranged at the bottom of the water replenishment tank. One end of the connecting rod is connected to the pry plate, and the other end is pluggable and arranged in the socket. The connecting piece connects the water tank door and the connecting rod, and the actuator is used to pry the pry plate to swing.

2. The annealing water tank for preparing photovoltaic welding ribbon according to claim 1, characterized in that: A partition is arranged in the water replenishment tank to form a water replenishment area and a water storage area, and a first overflow port connecting the water replenishment area and the water storage area is arranged on the partition; the annealing water tank is swingably arranged on the water tank body, and a limit block is arranged under the water replenishment tank, and the limit block is used to limit the swing amplitude of the water replenishment tank.

3. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: The swing angle range of the water replenishment tank is between -15° and 15°.

4. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: A contact switch is arranged on the limit block, and the opening and closing of the contact switch is controlled by the water replenishment tank.

5. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: The distance between the swing center of the water replenishment tank and the end of the water replenishment area is smaller than the distance between the swing center of the water replenishment tank and the end of the water storage area.

6. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: A second overflow port is arranged on the side wall of the water storage area.

7. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: The connecting rod is rotatably connected to the pry plate.

8. The annealing water tank for preparing photovoltaic welding ribbon according to claim 2, characterized in that: The partition is detachably installed in the water replenishment tank.

9. The annealing water tank for preparing photovoltaic welding ribbon according to claim 1, characterized in that: It also includes a liquid level indicating tube, which is connected with the water tank body to form a U-shaped tube, and the liquid level sensor is installed on the liquid level indicating tube.

10. The annealing water tank for preparing photovoltaic welding ribbon according to claim 1, characterized in that: The actuator is an electromagnet.

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