Portable field welding auxiliary tool for main grid outgoing line of photovoltaic module junction box

Abstract

The utility model provides a portable field welding auxiliary tool for a main grid outgoing line of a photovoltaic module junction box, which is characterized in that a handle end is connected with a reset spring, the tail end of the reset spring is connected with a movable handle, the movable handle is sleeved on an operating rod in a sliding manner, and the bottom of the movable handle is connected with a guide rod; the operating rod is provided with a guide rail correspondingly matched with the guide rod, a plunger type injection container containing soldering paste and a clamping head are sequentially and fixedly connected to the guide rod, the clamping head is provided with a through hole correspondingly matched with an injection head of the plunger type injection container, and the through hole is connected with a groove inner cavity in the clamping head. And an L-shaped welding retaining head is arranged at the tail end of the operating rod. Soldering paste can be injected to a position needing to be welded through the plunger type injection container by the aid of the injection head and the through hole in the matched clamping head, the clamping head is controlled by the movable handle to be matched with the reset spring, the guide rod and the L-shaped welding retaining head to elastically clamp the welding position, and a self-retaining clamping function is achieved in the welding process. And reliable welding is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component welding auxiliary tools, in particular to a portable photovoltaic component junction box main grid lead-out line on-site welding auxiliary tool. Background Art

[0002] During the long-term operation of photovoltaic modules in power stations, the main grid lead wires of the module junction box may be poorly soldered or desoldered, resulting in undervoltage or no voltage in the branch circuit, and burning failure of the junction box, while the module itself is normal. The current solution is to remove the damaged module of the junction box as a whole, replace it with a new module and then repair the junction box. Replacing the module requires at least 4 people, which greatly consumes manpower and time and is inefficient. Although portable lithium-ion soldering irons can be purchased on the market, because the junction box is facing the ground when the module is installed, the melted solder is easily dripped by gravity, which increases the difficulty of welding and the success rate is extremely low. Utility Model Content

[0003] In order to solve the above problems, the utility model aims to provide a portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool for improving the junction box main grid lead wire on-site welding quality.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A portable on-site welding auxiliary tool for the main grid lead-out line of a photovoltaic module junction box, comprising a tool body, the tool body comprising a handle end and an operating rod vertically fixedly connected to the handle end, the handle end being connected to a reset spring, the end of the reset spring being connected to a movable handle, the movable handle being slidably sleeved on the operating rod, the bottom of the movable handle being connected to a guide rod, the operating rod being provided with a guide rail corresponding to the guide rod, a plunger-type injection container containing solder paste and a clamping head being fixedly connected to the guide rod in sequence, the clamping head being provided with a through hole corresponding to the injection head of the plunger-type injection container, the through hole being connected to a groove inner cavity inside the clamping head, and an L-shaped welding retaining head being provided at the end of the operating rod.

[0006] Furthermore, the clamping head is a clamping head made of corundum material, and the L-shaped welding holding head is a holding head made of corundum material.

[0007] Furthermore, the inner cavity of the groove can accommodate 2-3 ml of solder paste.

[0008] Furthermore, when the return spring is in a natural state, a distance is maintained between the movable handle and the plunger type injection container.

[0009] Beneficial effects: The utility model can inject solder paste through the injection head and the through hole on the clamping head to the part that needs to be welded through the plunger-type injection container. The clamping head is controlled by a movable handle to cooperate with the reset spring, the guide rod and the L-shaped welding holding head to elastically clamp the welding part. The welding process has a "self-holding" clamping function to ensure reliable welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a portable photovoltaic module junction box main grid lead-out wire on-site welding auxiliary tool according to an embodiment of the utility model;

[0012] Figure 2 It is a side view of the portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool described in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0015] Example 1

[0016] See also Figure 1-2 : A portable photovoltaic module junction box main grid lead-out line on-site welding auxiliary tool, including a tool body 1, the tool body 1 includes a handle end 101 and an operating rod 102 vertically fixedly connected to the handle end 101, the handle end 101 is connected to a reset spring 103, the end of the reset spring 103 is connected to a movable handle 104, the movable handle 104 is slidably sleeved on the operating rod 102, the bottom of the movable handle 104 is connected to a guide rod, the operating rod 102 is provided with a guide rail corresponding to the guide rod, the guide rod is fixedly connected in sequence with a plunger-type injection container 105 containing solder paste and a clamping head 106, the clamping head 106 is provided with a through hole 1061 corresponding to the injection head 1051 of the plunger-type injection container 105, the through hole 1061 is connected to the groove cavity inside the clamping head 106, and the end of the operating rod 102 is provided with an L-shaped welding holding head 107.

[0017] In this embodiment, the plunger-type injection container can inject solder paste through the injection head and the through hole on the clamping head to the part that needs to be welded. The movable handle controls the clamping head to cooperate with the reset spring, the guide rod and the L-shaped welding holding head to elastically clamp the welding part. The welding process has a "self-holding" clamping function to ensure reliable welding.

[0018] In a specific example, the clamping head 106 is a clamping head made of corundum, and the L-shaped welding holding head 107 is a holding head made of corundum.

[0019] The corundum material clamping head and the corundum material retaining head of the present embodiment are both Al2O3. The corundum material ensures that the solder paste does not adhere to the retaining head and the clamping head, thereby improving the welding effect.

[0020] In a specific example, the inner cavity of the groove can accommodate 2-3 ml of solder paste.

[0021] The 2-3 ml space in the groove cavity of this embodiment can prevent the solder paste from melting and falling off, and at the same time, plasticity is achieved to improve the welding effect.

[0022] In a specific example, when the return spring 103 is in a natural state, a distance is maintained between the movable handle 104 and the plunger type injection container 105 .

[0023] In the present embodiment, during the welding process, when the self-holding clamping function is realized, the movable handle does not contact the plunger type injection container, thereby preventing misoperation of the plunger type injection container and affecting the welding effect. In addition, maintaining a spacing provides operating space for manually injecting solder paste into the plunger type injection container.

[0024] To sum up, the auxiliary tool of this embodiment solves the problem that when the photovoltaic module is installed, the junction box is facing the ground, the melted solder is easily dripped due to gravity, the welding difficulty increases and the success rate is extremely low; it solves the problem that the main grid lead wires of the module junction box are prone to cold soldering and desoldering during the long-term operation of the photovoltaic module; it solves the problem that the junction box has a small space and the welding difficulty is large.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool, characterized in that: The tool body (1) comprises a handle end (101) and an operating rod (102) vertically fixedly connected to the handle end (101), the handle end (101) is connected to a return spring (103), the end of the return spring (103) is connected to a movable handle (104), the movable handle (104) is slidably sleeved on the operating rod (102), the bottom of the movable handle (104) is connected to a guide rod, and the operating rod (102) is A guide rail is provided which matches the guide rod, and a plunger-type injection container (105) containing solder paste and a clamping head (106) are fixedly connected to the guide rod in sequence. The clamping head (106) is provided with a through hole (1061) which matches the injection head (1051) of the plunger-type injection container (105), and the through hole (1061) is connected to the inner cavity of the groove inside the clamping head (106). An L-shaped welding retaining head (107) is provided at the end of the operating rod (102).

2. The portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool according to claim 1 is characterized in that: The clamping head (106) is a clamping head made of corundum, and the L-shaped welding holding head (107) is a holding head made of corundum.

3. The portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool according to claim 1 is characterized in that: The inner cavity of the groove can accommodate 2-3 ml of solder paste.

4. The portable photovoltaic module junction box main grid lead wire on-site welding auxiliary tool according to claim 1, characterized in that: When the return spring (103) is in a natural state, a distance is maintained between the movable handle (104) and the plunger-type injection container (105).

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