Pin connection structure of open-loop sensor magnetic core

Abstract

The utility model discloses a pin connecting structure of an open-loop sensor magnetic core, which comprises a magnetic core, a pin and a shell, the magnetic core is inserted in the shell, the front end, the left end and the right end of the shell are respectively and symmetrically provided with two front fixing grooves and two side fixing grooves, the rear end of the shell is provided with a rear fixing groove, and the front fixing grooves and the side fixing grooves are symmetrically arranged in the shell. The magnetic core is inserted into the pin, and the lower side face of the pin is provided with a front fixing protrusion, a side fixing protrusion and a rear fixing protrusion which are inserted into the front fixing groove, the side fixing groove and the rear fixing groove. The connecting structure has the advantage of being high in connecting strength.

Description

Technical Field

[0001] The utility model belongs to the technical field of open-loop sensors and relates to a pin connection structure of an open-loop sensor magnetic core. Background Art

[0002] Open-loop sensors usually use a magnetic core to sense changes in the magnetic field and convert this change into an electrical signal. The magnetic core needs to be connected to the outside world through mounting pins.

[0003] The Chinese utility model patent with authorization announcement number CN214672159U discloses an induction magnetic core, including an outer shell magnetic core and an inner magnetic core. The outer shell magnetic core is a hollow cylinder, and the inner magnetic core is embedded and installed in the outer shell magnetic core. The inner magnetic core includes a connecting column and a cylindrical connecting plate. A coil is wound on the connecting column. The cylindrical connecting plate is symmetrically provided with arc-shaped wire grooves on both sides of the edge with the center of the circle as the center. The bottom of the cylindrical connecting plate is symmetrically provided with two connecting holes with the center of the circle as the center. Pins are pasted in the connecting holes of the two connecting plates. The two ends of the coil pass through the arc-shaped wire grooves and are fixedly connected with the two pins respectively. This technical solution requires opening holes in the magnetic core when installing the pins, and then inserting the pins into the holes to connect the pins to the magnetic core. However, the pins and the magnetic core are connected by connecting holes, and the connection strength is not very strong. When in use, the pins may detach from the connecting holes, affecting the use of the magnetic core. Utility Model Content

[0004] In view of the above problems, the utility model proposes a pin connection structure of an open-loop sensor magnetic core, which well solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a pin connection structure of an open-loop sensor magnetic core, including a magnetic core, a pin and a shell, the magnetic core is inserted in the shell, and the front end and the left and right ends of the shell are symmetrically provided with two front fixing grooves and two side fixing grooves, and the rear end of the shell is provided with a rear fixing groove, the magnetic core is inserted into the inside of the pin, and the lower side of the pin is provided with a front fixing protrusion, a side fixing protrusion and a rear fixing protrusion inserted into the front fixing groove, the side fixing groove and the rear fixing groove.

[0006] Furthermore, two side welding grooves are symmetrically opened at the left and right ends of the upper side of the pin, and a rear welding groove is opened at the rear end of the upper side of the pin. The side welding grooves are in contact with the left and right sides of the magnetic core, and the rear welding groove is fitted with the rear side of the magnetic core.

[0007] Furthermore, two groups of plug-in pins are symmetrically arranged at the left and right ends of the front side of the pin, and each group of plug-in pins has two plug-in pins, and the plug-in pins are located outside the shell.

[0008] Furthermore, a plug-in block is provided in the shell, and the magnetic core is plugged into the plug-in block.

[0009] Furthermore, a positioning block is provided on the front side of the plug-in block, a positioning groove is provided on the lower side of the magnetic core, and the positioning block is located in the positioning groove.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model realizes fixed installation of the pin on the shell through the side fixing protrusions, front fixing protrusions and rear fixing protrusions on the pin and the front fixing grooves, side fixing grooves and rear fixing grooves on the shell, thereby improving the stability of the pin on the shell, and realizes laser welding and fixing of the pin and the magnetic core through the rear welding groove and side welding groove on the pin, thereby reducing the punching process and reducing the cost of the open-loop sensor magnetic core during manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the finished product;

[0014] Figure 3 For this utility model Figure 1 Schematic diagram of the pin structure;

[0015] Figure 4 For this utility model Figure 1 Schematic diagram of the shell structure.

[0016] In the figure, 1-magnetic core; 2-pin; 3-housing; 201-side fixing protrusion; 202-front fixing protrusion; 101-positioning groove; 203-rear fixing protrusion; 204-side welding groove; 205-rear welding groove; 206-plug pin; 301-side fixing groove; 302-front fixing groove; 303-rear fixing groove; 304-plug block; 305-positioning block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a pin connection structure of an open-loop sensor core includes a magnetic core 1, a pin 2 and a shell 3, the magnetic core 1 is inserted into the shell 3, the front end and the left and right ends of the shell 3 are symmetrically provided with two front fixing grooves 302 and two side fixing grooves 301, the rear end of the shell 3 is provided with a rear fixing groove 303, the magnetic core 1 is inserted into the pin 2, and the lower side of the pin 2 is integrally formed with a front fixing protrusion 202, a side fixing protrusion 201 and a rear fixing protrusion 203 which are inserted into the front fixing groove 302, the side fixing groove 301 and the rear fixing groove 303.

[0019] During installation, pin 2 is located between the shell 3 and the magnetic core 1, and the inner side of pin 2 contacts the outer side of the magnetic core 1. Then the staff inserts the front fixing protrusion 202, the side fixing protrusion 201 and the rear fixing protrusion 203 on pin 2 into the front fixing groove 302, the side fixing groove 301 and the rear fixing groove 303 of the shell 3, so that the front, back, left and right sides of the lower side of pin 2 are all inserted into the shell 3, preventing pin 2 from moving on the shell 3, thereby improving the reliability of the connection between pin 2 and the magnetic core 1 and the shell 3.

[0020] In this embodiment, two side welding grooves 204 are symmetrically opened at the left and right ends of the upper side surface of the pin 2, and a rear welding groove 205 is opened at the rear end of the upper side surface of the pin 2. The side welding grooves 204 are in contact with the left and right sides of the magnetic core 1, and the rear welding groove 205 is fitted with the rear side surface of the magnetic core 1. When in use, the magnetic core 1 and the pin 2 are fixed by laser welding through the side welding grooves 204 and the rear welding grooves 205, which reduces the process of punching holes in the magnetic core 1 and reduces the manufacturing cost of the open-loop sensor magnetic core. At the same time, the connection strength between the magnetic core 1 and the pin 2 is increased by laser welding.

[0021] In this embodiment, two groups of plug-in pins 206 are symmetrically integrally formed at the left and right ends of the front side of the pin 2, and each group of plug-in pins 206 has two plug-in pins. The plug-in pins 206 are located on the outside of the shell 3. When in use, the plug-in pins 206 can be plugged into external components, thereby increasing the convenience of the open-loop sensor core when connecting with the outside world.

[0022] In this embodiment, a plug-in block 304 is integrally formed in the shell 3, and the magnetic core 1 is plugged into the plug-in block 304. When in use, the plug-in block 304 connects and fixes the magnetic core 1 to the shell 3, preventing the magnetic core 1 from moving in the shell 3, thereby ensuring the stability of the fixation.

[0023] In this embodiment, a positioning block 305 is integrally formed on the front side of the plug-in block 304, a positioning groove 101 is provided on the lower side of the magnetic core 1, and the positioning block 305 is located in the positioning groove 101. When installing the magnetic core 1, the positioning block 305 is located in the positioning groove 101 to position the magnetic core 1, thereby improving the convenience of installing the magnetic core 1.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pin connection structure of an open-loop sensor magnetic core, comprising a magnetic core, pins and a shell, wherein the magnetic core is plugged into the shell, and characterized in that: The front end and the left and right ends of the shell are symmetrically provided with two front fixing grooves and two side fixing grooves, and the rear end of the shell is provided with a rear fixing groove. The magnetic core is inserted into the inside of the pin, and the lower side of the pin is provided with a front fixing protrusion, a side fixing protrusion and a rear fixing protrusion inserted into the front fixing groove, the side fixing groove and the rear fixing groove.

2. The pin connection structure of an open-loop sensor core according to claim 1, characterized in that: Two side welding grooves are symmetrically provided at the left and right ends of the upper side of the pin, and a rear welding groove is provided at the rear end of the upper side of the pin. The side welding grooves are in contact with the left and right sides of the magnetic core, and the rear welding groove is fitted with the rear side of the magnetic core.

3. The pin connection structure of an open-loop sensor core according to claim 1, characterized in that: Two groups of plug-in pins are symmetrically arranged at the left and right ends of the front side of the pin, and each group of plug-in pins has two plug-in pins, and the plug-in pins are located outside the shell.

4. The pin connection structure of an open-loop sensor core according to claim 1, characterized in that: A plug-in block is arranged in the shell, and the magnetic core is plugged into the plug-in block.

5. The pin connection structure of an open-loop sensor core according to claim 4, characterized in that: A positioning block is arranged on the front side of the plug-in block, a positioning groove is arranged on the lower side of the magnetic core, and the positioning block is located in the positioning groove.

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