Chip alloy resistor

Abstract

The utility model relates to the technical field of chip alloy resistors, in particular to a chip alloy resistor which comprises a resistor body and a metal mounting seat, alloy blocks are fixedly connected to two ends of the resistor body, a rectangular hole is formed in the surface of the metal mounting seat, an elastic sheet is fixedly connected to the surface of the metal mounting seat, and the elastic sheet is fixedly connected with the metal mounting seat. The upper side of the elastic piece is of an inverted-V-shaped structure, a plurality of anti-skid grooves are evenly formed in the side wall of the alloy block, two limiting strips are fixedly connected to the side wall of the metal mounting base and are of an L-shaped structure, two guiding grooves are formed in the surface of the metal mounting base, and pushing strips are slidably connected to the inner walls of the two guiding grooves. According to the utility model, through the arrangement of the structure, the chip alloy resistor between the two metal mounting seats can be quickly disassembled and assembled conveniently, the mounting difficulty of the chip alloy resistor on a circuit board is reduced, and the mounting efficiency of the chip alloy resistor is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of chip alloy resistors, in particular to a chip alloy resistor. Background Art

[0002] A chip alloy resistor is a resistor device, usually used to adjust current, impedance or power in a circuit. It is made of a thin sheet of alloy resistor material with high resistance value and stability. Chip alloy resistors usually have small size, high precision and good thermal stability. They are suitable for various electronic devices and circuit boards. They are usually soldered to circuit boards, so they are also called chip resistors.

[0003] A Chinese patent with the announcement number CN219225987U discloses a chip alloy resistor, including a ceramic substrate, a resistor body is installed on the upper side of the ceramic substrate, a top electrode and an infrared back electrode are installed on the upper and lower sides of the ceramic substrate respectively, and the top electrode is fixedly connected to the resistor body, side electrodes are installed on opposite sides of the ceramic substrate, the side electrodes are fixedly connected to the top electrode and the back electrode, a pin is installed on the side of the side electrode away from the ceramic substrate, a plurality of heat pipes are installed in the ceramic substrate, a heat sink is installed on the other two sides of the ceramic substrate, a plurality of heat fins are installed on the side of the heat sink away from the ceramic substrate, and the heat sink is fixedly connected to the heat pipe. In the utility model, a heat pipe is installed in the ceramic substrate, a heat sink is installed on both sides of the ceramic substrate, and a heat sink fin is installed on one side of the heat sink. The thermal conductivity of the heat pipe is better than that of the ceramic substrate, so the thermal conductivity of the ceramic substrate can be increased, and the heat dissipation of the alloy resistor can be enhanced.

[0004] The existing related technologies often have the following defects: during the actual use of the chip alloy resistor, when the chip alloy resistor on the circuit board is damaged, the staff needs to spend a long time to remove the old chip alloy resistor from the circuit board and then weld the new chip alloy resistor on the circuit board, which reduces the efficiency of installing the chip alloy resistor on the circuit board.

[0005] Therefore, the utility model provides a chip alloy resistor. Utility Model Content

[0006] The utility model aims to solve the shortcoming of low installation efficiency of the chip alloy resistor on the circuit board in the prior art, and proposes a chip alloy resistor.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a chip alloy resistor, including a resistor body and a metal mounting seat, both ends of the resistor body are fixedly connected with alloy blocks, a rectangular hole is opened on the surface of the metal mounting seat, and a spring is fixedly connected to the surface of the metal mounting seat.

[0008] The effect achieved by the above components is that the spring piece will be pressed against the side wall of the alloy block, thereby realizing the rapid installation of the chip alloy resistor on the circuit board.

[0009] Preferably, the upper side of the spring piece is an inverted "V"-shaped structure.

[0010] The effect achieved by the above components is that the spring sheet with an inverted "V"-shaped structure on the upper side facilitates the extrusion work on the side wall of the alloy block.

[0011] Preferably, a plurality of anti-slip grooves are evenly formed on the side wall of the alloy block.

[0012] The effect achieved by the above components is: by providing the anti-slip groove opened on the side wall of the alloy block, the resistance of the chip alloy resistor sliding out from between the two metal mounting seats is increased, thereby improving the stability of the chip alloy resistor installed on the circuit board.

[0013] Preferably, two limit bars are fixedly connected to the side wall of the metal mounting seat, and the limit bars are of an "L"-shaped structure.

[0014] The effect achieved by the above components is that the limit strip can realize the limit work of the chip alloy resistor.

[0015] Preferably, two guide grooves are provided on the surface of the metal mounting seat, and push strips are slidably connected to the inner walls of the two guide grooves.

[0016] The effect achieved by the above components is that the push bar slides inside the guide groove to limit the moving direction of the push bar.

[0017] Preferably, a roller is rotatably connected to the lower side of the push bar.

[0018] The effect achieved by the above components is that relative movement occurs between the roller and the spring sheet, thereby reducing the resistance between the push strip and the spring sheet during the process of pressing the push strip downward.

[0019] Preferably, a pressure ring is fixedly connected to the side wall of the push strip.

[0020] The effects achieved by the above components are: the arrangement of the pressing ring facilitates the work of pressing down the push strip.

[0021] In summary:

[0022] In the utility model, the spring piece will be squeezed on the side wall of the alloy block, so as to realize the rapid installation of the chip alloy resistor on the circuit board. By setting the above structure, the rapid disassembly and assembly of the chip alloy resistor between the two metal mounting seats is facilitated, the difficulty of installing the chip alloy resistor on the circuit board is reduced, and the installation efficiency of the chip alloy resistor is improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the resistor body in the utility model;

[0025] Figure 3 For the utility model Figure 2 A magnified image of point A;

[0026] Figure 4 It is a structural schematic diagram of the metal mounting seat in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the push strip in the utility model.

[0028] Legend: 1. Resistor body; 2. Alloy block; 3. Metal mounting seat; 4. Anti-slip groove; 5. Limiting strip; 6. Guide groove; 7. Push strip; 8. Spring piece; 9. Rectangular hole; 10. Press ring; 11. Roller. DETAILED DESCRIPTION

[0029] Reference Figure 1-5 As shown, the utility model provides a technical solution: a chip alloy resistor, including a resistor body 1 and a metal mounting seat 3.

[0030] The following is a detailed description of its overall specific settings and functions.

[0031] In this embodiment: both ends of the resistor body 1 are fixedly connected with an alloy block 2, a rectangular hole 9 is provided on the surface of the metal mounting seat 3, and a spring 8 is fixedly connected to the surface of the metal mounting seat 3. The spring 8 will be squeezed on the side wall of the alloy block 2, thereby realizing the rapid installation of the chip alloy resistor on the circuit board. The upper side of the spring 8 is an inverted "V"-shaped structure. The spring 8 with an inverted "V"-shaped structure on the upper side facilitates the squeezing of the side wall of the alloy block 2. The side wall of the alloy block 2 is evenly provided with a number of anti-skid grooves 4. By providing the anti-skid grooves 4 provided on the side wall of the alloy block 2, the resistance of the chip alloy resistor to sliding out from between the two metal mounting seats 3 is increased, thereby improving the stability of the installation and use of the chip alloy resistor on the circuit board.

[0032] Specifically, the side wall of the metal mounting seat 3 is fixedly connected with two limit bars 5, and the limit bars 5 are of an "L"-shaped structure. The limit bars 5 can realize the limiting work of the chip alloy resistor. The surface of the metal mounting seat 3 is provided with two guide grooves 6, and the inner walls of the two guide grooves 6 are slidably connected with push bars 7. The push bar 7 slides on the inner side of the guide groove 6 to limit the moving direction of the push bar 7. The lower side of the push bar 7 is rotatably connected with a roller 11. The roller 11 and the spring 8 have relative motion, which reduces the resistance between the push bar 7 and the spring 8 during the process of pressing the push bar 7 down. The side wall of the push bar 7 is fixedly connected with a pressure ring 10. The provision of the pressure ring 10 facilitates the pressing work of the push bar 7.

[0033] Working principle: two metal mounting seats 3 can be installed on the circuit board by welding. When the resistor body 1 on the circuit board needs to be replaced, the resistor body 1 and the alloy block 2 are placed between the four limit bars 5. The limit bars 5 can limit the position of the chip alloy resistor, avoiding the chip alloy resistor from shaking on the circuit board. The spring 8 will be squeezed on the side wall of the alloy block 2, thereby realizing the rapid installation of the chip alloy resistor on the circuit board. By setting the anti-skid groove 4 opened on the side wall of the alloy block 2, the resistance of the chip alloy resistor to slide out from between the two metal mounting seats 3 is increased, thereby improving the stability of the installation and use of the chip alloy resistor on the circuit board, and facilitating the rapid installation of the chip alloy resistor. When it is necessary to disassemble the chip alloy resistor, the push strip 7 inside the sliding guide groove 6 is provided with a pressure ring 10 to facilitate the pressing down of the push strip 7. The sliding of the push strip 7 inside the guide groove 6 limits the moving direction of the push strip 7. At this time, the compression work on the upper side of the spring 8 can be achieved, wherein relative movement occurs between the roller 11 and the spring 8, thereby reducing the resistance between the push strip 7 and the spring 8 during the process of pressing down the push strip 7. At this time, the chip alloy resistor between the two metal mounting seats 3 can be quickly disassembled. By setting the above structure, the quick disassembly and assembly of the chip alloy resistor between the two metal mounting seats 3 is facilitated, the difficulty of installing the chip alloy resistor on the circuit board is reduced, and the installation efficiency of the chip alloy resistor is improved to a certain extent.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A chip alloy resistor, comprising a resistor body (1) and a metal mounting seat (3), characterized in that: Both ends of the resistor body (1) are fixedly connected to alloy blocks (2), a rectangular hole (9) is provided on the surface of the metal mounting seat (3), and a spring sheet (8) is fixedly connected to the surface of the metal mounting seat (3).

2. A chip alloy resistor according to claim 1, characterized in that: The upper side of the spring sheet (8) is an inverted "V"-shaped structure.

3. The chip alloy resistor according to claim 1, characterized in that: A plurality of anti-slip grooves (4) are evenly arranged on the side wall of the alloy block (2).

4. The chip alloy resistor according to claim 1, characterized in that: Two limiting strips (5) are fixedly connected to the side wall of the metal mounting seat (3), and the limiting strips (5) are of an "L"-shaped structure.

5. The chip alloy resistor according to claim 1, characterized in that: Two guide grooves (6) are provided on the surface of the metal mounting seat (3), and push strips (7) are slidably connected to the inner walls of the two guide grooves (6).

6. A chip alloy resistor according to claim 5, characterized in that: The lower side of the push bar (7) is rotatably connected to a roller (11).

7. The chip alloy resistor according to claim 5, characterized in that: A pressure ring (10) is fixedly connected to the side wall of the push strip (7).

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