Adjustable embedded resistor

Abstract

The utility model relates to the technical field of electronic components, and discloses an adjustable embedded resistor, which comprises a resistor substrate with pins at two ends and a resistor body embedded on the upper surface of the resistor substrate. The resistor substrate is provided with a caulking groove, and the resistor body is embedded in the caulking groove and is in interference fit with the caulking groove. The plurality of groups of wires are embedded into the resistor substrate, and the resistor body is electrically connected with the pins at the two ends of the resistor substrate through the wires. According to the resistor, the resistance value can be conveniently adjusted by replacing the resistor bodies with different resistance values, and re-dismounting and re-welding are not needed. And the caulking groove is designed to be a dovetail groove, so that the resistor body can be effectively prevented from displacing or falling off. And the lead is made of a high-quality material and is silvered on the surface, so that the lead has good conductivity. The resistor has the advantages of being convenient to adjust, stable in structure, good in conductivity and the like, and is suitable for various circuit scenes needing resistance adjustment.

Description

Technical Field

[0001] This utility model relates to the field of electronic component technology, specifically to an adjustable embedded resistor. Background Technology

[0002] In the field of electronic component technology, resistors are an indispensable component. Traditional resistors are usually of fixed resistance value, which cannot be adjusted once manufactured. However, in practical applications, it is often necessary to adjust the resistance value according to the requirements of the circuit. The traditional approach is to replace resistors with resistors of different resistance values ​​to meet the requirements, but this requires disassembly, reassembly, and soldering, which is cumbersome and inefficient. Therefore, there is an urgent need in the market for a resistor whose resistance value can be easily adjusted. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable embedded resistor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable embedded resistor, comprising:

[0005] A resistor substrate with pins at both ends has a groove on its upper surface. A resistor body is embedded inside the groove. The resistor body has multiple rows and columns. The resistor body and the groove are interference fit.

[0006] Several sets of wires are embedded inside the resistor substrate, and the resistor body is electrically connected to the pins at both ends of the resistor substrate through the wires. The electrical connection includes series or parallel connection.

[0007] Preferably, the groove is a dovetail groove, and the pins at both ends of the resistor body are dovetail protrusions that are adapted to the dovetail groove.

[0008] Preferably, a take-out groove is provided on the inner top wall on both sides of the groove, the take-out groove is provided in an arc-shaped notch, and the take-out groove extends to the inner bottom of the groove.

[0009] Preferably, the conductor is made of copper, aluminum, or an aluminum alloy, and its surface is silver-plated.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by designing a special resistor substrate and slot, the resistor body can be easily embedded into the resistor substrate and electrically connected to the pins at both ends of the resistor substrate through wires.

[0011] Easy adjustment: Users can easily replace the resistor body with different resistance values ​​according to their needs without having to disassemble and resolder the resistor, which greatly improves operating efficiency.

[0012] Stable structure: The groove and the resistor body adopt an interference fit, and the groove is a dovetail groove design, which can effectively prevent the resistor body from shifting or accidentally falling off after being inserted, thus ensuring the stability and reliability of the resistor.

[0013] Excellent conductivity: The wires are made of copper, aluminum, or aluminum alloy and are silver-plated, which provides excellent conductivity and ensures the normal operation of the resistor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the conductor structure in this utility model.

[0018] In the diagram: 1. Resistor substrate; 2. Resistor body; 3. Wire; 4. Insertion groove; 5. Mounting groove; 6. Removal groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 The present invention provides the following technical solution:

[0021] Example 1: An Adjustable Embedded Resistor

[0022] include:

[0023] A resistor substrate 1 with pins at both ends has a groove 4 on its upper surface, and a resistor body 2 is embedded inside the groove 4. The resistor body 2 and the groove 4 are interference fit.

[0024] Several sets of wires 3 are embedded inside the resistor substrate 1, and the resistor body 2 is electrically connected to the pins at both ends of the resistor substrate 1 through the wires 3.

[0025] The slot 4 is a dovetail slot, and the pins at both ends of the resistor body 2 are dovetail protrusions that are adapted to the dovetail slot. The cooperation between the dovetail slot and the dovetail protrusion can provide better connection stability and prevent the resistor body 2 from being displaced or accidentally falling off after being inserted into the slot 4.

[0026] The inner top walls on both sides of the groove 4 are provided with a take-out groove 6. The take-out groove 6 is set in an arc-shaped notch and extends to the inner bottom of the groove 4. The opening of the take-out groove 6 makes it easy to take out the resistor body 2 embedded in the groove 4.

[0027] The conductor 3 is made of copper, aluminum, or an aluminum alloy, and its surface is silver-plated, which gives the conductor 3 good electrical conductivity.

[0028] In use, the resistor body 2 is embedded into the groove 4 on the resistor substrate 1. The resistor body 2 and the resistor substrate 1 are integrated by the pins and wires 3 at both ends of the resistor substrate 1. The resistor body 2 can be adjusted and replaced with different resistance values ​​as needed, making it more convenient to adjust the resistance value without having to disassemble and re-solder the resistor.

[0029] Example 2: Unlike Example 1, it also includes a resistor body 2 with multiple rows and columns, and the electrical connection includes series or parallel connection.

[0030] In use, the resistor body 2 with different resistance values ​​can be disassembled and assembled as needed, so that the resistor body 2 is connected inside the resistor substrate 1 in series or parallel, thereby achieving the effect of changing the resistance value.

[0031] Series resistor (increases the total resistance)

[0032] Formula: Total Resistance

[0033] Features: The total resistance is equal to the sum of the individual resistors, the current is the same, and the voltage is distributed proportionally.

[0034] Application scenario: When a larger resistance is required, multiple resistors are connected in series.

[0035] Example: Put two The resistors are connected in series, and the total resistance is .

[0036] Parallel resistors (reduce the total resistance)

[0037] formula:

[0038] Features: The total resistance is less than any individual resistor, the voltage is the same, and the current is distributed proportionally.

[0039] Application scenario: When a smaller resistance is required, multiple resistors are connected in parallel.

[0040] Example: Put two The resistors are connected in parallel, and the total resistance is _____. .

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable embedded resistor, characterized in that, include: A resistor substrate (1) with pins at both ends has a groove (4) on its upper surface. A resistor body (2) is embedded inside the groove (4). The resistor body (2) has multiple rows and columns. The resistor body (2) and the groove (4) are interference fit. Several sets of wires (3) are embedded in the interior of the resistor substrate (1), and the resistor body (2) is electrically connected to the pins at both ends of the resistor substrate (1) through the wires (3). The electrical connection includes series or parallel connection.

2. The adjustable embedded resistor according to claim 1, characterized in that: The groove (4) is a dovetail groove, and the pins at both ends of the resistor body (2) are dovetail protrusions that are adapted to the dovetail groove.

3. An adjustable embedded resistor according to claim 1, characterized in that: The inner top walls on both sides of the groove (4) are provided with extraction grooves (6), which are arc-shaped notches and extend to the inner bottom of the groove (4).

4. An adjustable embedded resistor according to claim 1, characterized in that: The conductor (3) is made of copper, aluminum or aluminum alloy and is silver-plated.

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