Novel photovoltaic probe with silver-plated spring

Abstract

The novel photovoltaic probe comprises a needle tube, a needle head and the silver-plated spring, one side of the needle head is fixedly connected with a cap head, the other side of the needle head is fixedly connected with an abutting head, one side of the abutting head is fixedly connected with a conical head, one side of the needle tube is fixedly connected with a needle tube head, one end of the needle tube head is provided with a cleaning hole, and the other end of the needle tube head is provided with the silver-plated spring. A sealing groove is formed in the outer surface of the needle tube, the cap head is of a flat head structure, and the tail end of the conical head is conical and is matched with the spring through a conical surface; according to the utility model, the electroplating coating is arranged on the outer surface of the spring, copper plating, chemical nickel plating and silver plating are selected, the conductivity of silver is stronger than that of gold, and the silver plating process is adopted, so that the resistance of a product is reduced, and the conductivity of the probe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial equipment test probes, in particular to a novel photovoltaic probe with a silver-plated spring. Background Art

[0002] Photovoltaic probes are professional tools used for testing photovoltaic cell circuits. They ensure the stability and accuracy of the test. There are various types of photovoltaic probes, including imported probes, spring probes, etc., to meet different testing needs. These probes have the characteristics of stable testing and long life, and can maintain stable performance during long-term use. However, the resistance of existing photovoltaic probes after assembly is relatively large. Due to the physical properties of the material itself, the current it can carry is not high, the service life is not long, the products are frequently replaced and scrapped, and post-processing is likely to cause pollution to the environment. The cost of production and manufacturing is relatively high, and the price of gold is much higher than that of silver. Utility Model Content

[0003] The purpose of the present utility model is to provide a novel photovoltaic probe with a silver-plated spring in order to solve the above-mentioned problem.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a new photovoltaic probe with a silver-plated spring, comprising: a needle tube, a needle head and a silver-plated spring, wherein a cap head is fixedly connected to one side of the needle head, a butt head is fixedly connected to the other side of the needle head, and a conical head is fixedly connected to one side of the butt head.

[0005] As a further solution of the present invention: a needle head is fixedly connected to one side of the needle tube, and a cleaning hole is opened at one end of the needle head.

[0006] As a further solution of the present invention: a sealing groove is provided on the outer surface of the needle tube.

[0007] As a further solution of the present invention: the cap head is a flat head structure, and the tail end of the conical head is conical, and cooperates with the spring through a conical surface.

[0008] As a further solution of the present invention: the outer surface of the spring is provided with an electroplating coating.

[0009] As a further solution of the present invention, the sealing grooves are provided in two groups.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. Silver has stronger conductivity than gold. The silver plating process reduces the resistance of the product and improves the conductivity of the probe itself;

[0012] 2. Compared with the existing gold-plated spring, it can withstand larger current and improve the load limit of the product;

[0013] 3. Under the same test conditions, due to its own conductive performance advantage, the service life of the silver-plated spring is longer than that of the gold-plated spring, which increases the original service life by more than 20% and reduces the frequency of scrapping; 4. It saves production costs and is conducive to mass production and promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a novel photovoltaic probe with a silver-plated spring described in the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the separated parts of a novel photovoltaic probe with a silver-plated spring described in the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of a novel photovoltaic probe with a silver-plated spring according to the present invention;

[0017] Figure 4 This is a structural schematic diagram of point A in a novel photovoltaic probe with a silver-plated spring described in the present invention.

[0018] In the figure: 1. needle tube; 2. needle tip; 3. silver-plated spring; 4. cap head; 5. butt head; 6. conical head; 7. needle head; 8. cleaning hole; 9. sealing groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or connected in an integral manner; they can be mechanically connected or electrically connected; they can be directly connected, indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The following describes the embodiments of the present invention based on its overall structure.

[0021] Reference Figures 1 to 4 In an embodiment of the utility model, a new photovoltaic probe with a silver-plated spring includes: a needle tube 1, a needle head 2 and a silver-plated spring 3. A cap head 4 is fixedly connected to one side of the needle head 2, and a butt head 5 is fixedly connected to the other side of the needle head 2. A conical head 6 is fixedly connected to one side of the butt head 5. The cap head 4 is a flat head structure, and the tail end of the conical head 6 is conical, which cooperates with the spring 3 through the conical surface. The outer surface of the spring 3 is provided with an electroplating coating, and the electroplating is first copper-plated, then chemical nickel-plated, and finally silver-plated.

[0022] Reference Figure 3 A needle head 7 is fixed to one side of the needle tube 1, and a cleaning hole 8 is opened at one end of the needle head 7 to clean the internal debris during the processing and for the convenience of sealing the hole.

[0023] Reference Figure 4 The outer surface of the needle tube 1 is provided with a sealing groove 9, and the sealing groove 9 is provided in two groups to improve the straightness and service life of the product.

[0024] The working principle of the present utility model is as follows: the probe is mainly composed of a needle tube 1, a needle head 2, a silver-plated spring 3, a cap head 4, a butt head 5, a conical head 6 and a needle tube head 7. The outer surface of the needle tube 1 is provided with a sealing groove 9 to improve the straightness and service life of the product. The outer surface of the silver-plated spring 3 is specially treated. First, copper is plated to provide basic conductivity, then chemical nickel is plated to enhance corrosion resistance and wear resistance, and finally silver is plated to improve conductivity and oxidation resistance. The needle head 2 of the probe is designed to be a flat head structure. This design enables the probe to remain stable when in contact with the surface of the photovoltaic cell, ensuring the accuracy of the test. The flat head structure of the cap head 4 also further enhances the contact stability between the probe and the test surface. The tail end of the conical head 6 is conical, which cooperates with the silver-plated spring 3. This design reduces the lateral force of the spring when it is under stress, reduces the friction between the spring and the tube wall, thereby increasing the service life of the probe. At the same time, the product The force can be adjusted according to customer requirements to adapt to different testing needs. A cleaning hole 8 is provided at one end of the needle head 7 to facilitate cleaning of internal debris during processing. The sealing groove 9 design on the outer surface of the needle tube 1 not only helps to improve the straightness of the product, but also facilitates sealing. After the product is assembled, it can be sealed in a semi-automatic or fully automated manner to improve production efficiency. The electroplated coating of 3 provides excellent conductivity, corrosion resistance and wear resistance. The copper layer provides basic conductivity, the chemical nickel layer enhances corrosion resistance and wear resistance, and the silver layer further improves conductivity and oxidation resistance. This multi-layer electroplating design ensures that the probe can maintain stable performance during long-term use. Since the outer diameter of the needle tube has a fixed tolerance range, it needs to be matched with a special photovoltaic needle sleeve for use. The design of this special needle sleeve ensures stability and compatibility between the probe and the test equipment.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel photovoltaic probe with a silver-plated spring, characterized in that: include: A needle tube (1), a needle head (2) and a silver-plated spring (3); a cap head (4) is fixedly connected to one side of the needle head (2); a butt head (5) is fixedly connected to the other side of the needle head (2); and a conical head (6) is fixedly connected to one side of the butt head (5).

2. The novel photovoltaic probe with a silver-plated spring according to claim 1, characterized in that: A needle head (7) is fixedly connected to one side of the needle tube (1), and a cleaning hole (8) is opened at one end of the needle head (7).

3. The novel photovoltaic probe with a silver-plated spring according to claim 1, characterized in that: A sealing groove (9) is provided on the outer surface of the needle tube (1).

4. The novel photovoltaic probe with a silver-plated spring according to claim 1, characterized in that: The cap head (4) is a flat head structure, and the tail end of the conical head (6) is conical and cooperates with the spring (3) through a conical surface.

5. The novel photovoltaic probe with a silver-plated spring according to claim 1, characterized in that: The outer surface of the spring (3) is provided with an electroplating coating.

6. The novel photovoltaic probe with a silver-plated spring according to claim 3, characterized in that: The sealing grooves (9) are provided in two groups.

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