Resistor disc with compact structure

Abstract

The utility model relates to the technical field of resistor discs, in particular to a resistor disc with a compact structure. According to the technical scheme, the resistor comprises a first resistor disc and a second resistor disc, wherein the second resistor disc is arranged on the first resistor disc; the first resistor disc is provided with a first limiting block, the second resistor disc is provided with a second limiting block, the first resistor disc is provided with a first wiring hole, and the second resistor disc is provided with a second wiring hole; a guide post is mounted on the second resistor disc; a plurality of first bumps are arranged in the first wiring hole, and the plurality of first bumps are distributed in an annular array relative to the first wiring hole; and a plurality of second bumps are arranged in the second wiring hole and are distributed in an annular array relative to the second wiring hole. According to the utility model, connection and use of the resistor disc are met, connection stability is increased during use, and welding attachment points are added at wiring positions to avoid influence on welding due to excessive smoothness of the attachment points.

Description

Technical Field

[0001] This utility model relates to the field of resistor sheet technology, specifically to a compact resistor sheet. Background Technology

[0002] To achieve the goal of flexibly combining resistance values ​​as needed, a type of resistive chip has emerged. In practical applications, these resistive chips are stacked closely together to achieve flexible changes in resistance values.

[0003] A search revealed that patent application CN202720978U discloses a general-purpose resistor sheet. While this device offers relatively stable stacking of resistor sheets, its reliance on a single direct plug-in stacking method makes it prone to loosening after prolonged use. Furthermore, when direct soldering of wires at the connection points results in a limited number of easily accessible and smooth solder joints, increasing the likelihood of detachment and affecting connection stability over time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a compact resistor sheet, solving the problems mentioned in the background section.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A compact resistor sheet includes a first resistor sheet and a second resistor sheet, wherein the second resistor sheet is disposed on the first resistor sheet;

[0007] A first limiting block is mounted on the first resistor sheet, a second limiting block is mounted on the second resistor sheet, a first wiring hole is opened on the first resistor sheet, and a second wiring hole is opened on the second resistor sheet;

[0008] The second resistor is equipped with a guide post.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the second resistor is stacked in mirror image on the first resistor.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] This mirror stacking method makes more efficient use of the space between the first and second resistors, effectively reducing the overall space occupied by the resistors and achieving a more compact structure. At the same time, mirror stacking helps to make the electrical performance of the resistors more uniform and stable because the relative positions and parameter distributions of the two resistors are more symmetrical, reducing performance fluctuations caused by structural differences.

[0013] Furthermore, the first wiring hole is provided with a plurality of first protrusions, and the plurality of first protrusions are arranged in a ring array relative to the first wiring hole.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The placement of first protrusions arranged in a circular array within the first wiring hole significantly increases the frictional force during soldering. When the wire is inserted into the first wiring hole and soldered, the first protrusions better conform to the wire, preventing slippage during soldering and thus improving soldering stability. Furthermore, these protrusions increase the contact area between the wire and the inner wall of the wiring hole, resulting in more uniform current conduction, reduced contact resistance, and improved electrical performance of the resistor. Moreover, it avoids the instability that might result from overly smooth wiring joints, ensuring the reliability of the resistor during use.

[0016] Furthermore, the second wiring hole is provided with a plurality of second protrusions, which are arranged in a ring array relative to the second wiring hole.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] Similar to the function of the first protrusion in the first wiring hole, the second protrusion, arranged in a ring array in the second wiring hole, also increases the friction and stability of the solder joint. When wiring the second resistor, the second protrusion can better secure the wire, preventing it from loosening or shifting. Simultaneously, the increased contact area helps reduce contact resistance, improves the conductivity of the resistor, ensures stable operation of the resistor in the circuit, and reduces the probability of malfunctions caused by wiring problems.

[0019] Furthermore, the first limiting block is fitted inside the second resistive sheet, and the second limiting block is fitted inside the first resistive sheet.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The fitting of the first and second limiting blocks provides precise positioning and a reliable connection between the first and second resistive elements. This limiting structure prevents relative displacement or wobbling of the two resistive elements during use, ensuring the overall stability of the resistive element structure. Simultaneously, the fitting of the limiting blocks enhances the mechanical strength between the two resistive elements, enabling them to withstand certain external impacts without damage, thus extending their service life. Furthermore, precise positioning helps maintain the stability of the electrical connection between the resistive elements, reducing fluctuations in electrical performance caused by changes in position.

[0022] Furthermore, the guide post is sleeved inside the first resistor sheet.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The guide post, fitted inside the first resistor element, provides excellent guidance during the installation of the second resistor element onto the first. It guides the second resistor element to accurately stack and mate with the first, preventing deviations and misalignments during installation and improving assembly accuracy and efficiency. Simultaneously, the guide post enhances the connection strength between the first and second resistor elements, making their bond tighter and further improving the overall structural stability and reliability of the resistor element.

[0025] This invention provides a compact resistor chip. It has the following advantages:

[0026] The second resistor is stacked on top of the first resistor in a mirror image. This stacking method makes more efficient use of the space between the first and second resistors, effectively reducing the overall space occupied by the resistors and achieving a compact structure.

[0027] Mirror stacking makes the relative positions and parameter distribution of the two resistors more symmetrical, reducing performance fluctuations caused by structural differences and helping to make the electrical performance of the resistors more uniform and stable.

[0028] The first wiring hole has several first protrusions arranged in a ring array, which increases the contact area between the wire and the inner wall of the wiring hole, making the current conduction more uniform, reducing the contact resistance, and improving the electrical performance of the resistor. The second protrusion in the second wiring hole also plays the same role, ensuring the stable operation of the resistor in the circuit.

[0029] The engagement of the first and second limiting blocks, as well as the engagement of the guide post, helps maintain the stability of the electrical connection between the resistors and reduces fluctuations in electrical performance caused by changes in position.

[0030] The first protrusion in the first wiring hole and the second protrusion in the second wiring hole both increase the friction of the welding at the connection point, allowing for better contact with the wire, preventing the wire from slipping during the welding process, improving the stability of the welding, avoiding wiring instability problems, and ensuring the reliability of the resistor during use.

[0031] The engagement of the first and second limiting blocks prevents relative displacement or shaking of the two resistor pieces during use, ensuring the stability of the overall structure of the resistor pieces. It also enhances the mechanical strength between the two resistor pieces, enabling them to withstand certain external impacts without damage and extending the service life of the resistor pieces.

[0032] The guide post is fitted inside the first resistor element, which not only plays a good guiding role and improves the accuracy and efficiency of assembly, but also enhances the connection strength between the first and second resistor elements, making their joint tighter and further improving the overall structural stability and reliability of the resistor element. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a front view schematic diagram of the present invention;

[0036] Figure 2 This is a right-side view of the present invention;

[0037] Figure 3 This is an exploded view of the present invention;

[0038] Figure 4 This is a bottom view of the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] 1. First resistor; 101. First limiting block; 102. First protrusion; 103. First wiring hole; 2. Second resistor; 201. Second limiting block; 202. Second wiring hole; 203. Second protrusion; 204. Guide post. Detailed Implementation

[0041] 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.

[0042] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows: Example 1

[0043] A compact resistor sheet includes a first resistor sheet 1 and a second resistor sheet 2, wherein the second resistor sheet 2 is disposed on the first resistor sheet 1;

[0044] A first limiting block 101 is installed on the first resistor 1, a second limiting block 201 is installed on the second resistor 2, a first wiring hole 103 is opened on the first resistor 1, and a second wiring hole 202 is opened on the second resistor 2.

[0045] A guide post 204 is installed on the second resistor 2;

[0046] The second resistor 2 is stacked in mirror image on the first resistor 1. This mirror stacking method makes more efficient use of the space between the first resistor 1 and the second resistor 2, effectively reducing the overall space occupied by the resistors and achieving a compact structure. At the same time, mirror stacking helps to make the electrical performance of the resistors more uniform and stable, because the relative positions and parameter distribution of the two resistors are more symmetrical, reducing performance fluctuations caused by structural differences.

[0047] The first limiting block 101 is fitted inside the second resistive element 2, and the second limiting block 201 is fitted inside the first resistive element 1. This fitted engagement provides precise positioning and a reliable connection between the first resistive element 1 and the second resistive element 2. This limiting structure prevents relative displacement or shaking of the two resistive elements during use, ensuring the overall stability of the resistive element structure. Simultaneously, the fitting of the limiting blocks enhances the mechanical strength between the two resistive elements, enabling them to withstand certain external impacts without damage, thus extending the service life of the resistive elements. Furthermore, precise positioning helps maintain the stability of the electrical connection between the resistive elements, reducing fluctuations in electrical performance caused by changes in position.

[0048] The guide post 204 is sleeved inside the first resistor piece 1, providing excellent guidance when installing the second resistor piece 2 onto the first resistor piece 1. It guides the second resistor piece 2 to accurately stack and mate with the first resistor piece 1, avoiding deviations and misalignments during installation and improving assembly accuracy and efficiency. Simultaneously, the guide post 204 also enhances the connection strength between the first resistor piece 1 and the second resistor piece 2, making their connection tighter and further improving the overall structural stability and reliability of the resistor pieces. Example 2

[0049] To increase the friction and stability of the solder joints, and to avoid overly smooth joints affecting stability, for example, such as Figures 1 to 4 As shown, this utility model also includes:

[0050] The first wiring hole 103 is provided with a plurality of first protrusions 102 arranged in a ring array relative to the first wiring hole 103. This ring array of first protrusions 102 significantly increases the frictional force during soldering. When a wire is inserted into the first wiring hole 103 and soldered, the first protrusions 102 can better fit the wire, preventing the wire from slipping during soldering and thus improving soldering stability. Furthermore, these protrusions increase the contact area between the wire and the inner wall of the wiring hole, resulting in more uniform current conduction, reduced contact resistance, and improved electrical performance of the resistor. Moreover, it avoids the instability that might result from overly smooth wiring, ensuring the reliability of the resistor during use.

[0051] The second wiring hole 202 is provided with a plurality of second protrusions 203, which are arranged in a ring array relative to the second wiring hole 202. Similar to the function of the first protrusion 102 in the first wiring hole 103, the ring array of second protrusions 203 in the second wiring hole 202 also increases the friction and stability of the solder joint. When wiring the second resistor 2, the second protrusions 203 can better secure the wires, preventing them from loosening or shifting. At the same time, the increased contact area helps reduce contact resistance, improves the conductivity of the resistor, ensures stable operation of the resistor in the circuit, and reduces the probability of malfunctions caused by wiring problems.

[0052] Working principle:

[0053] Resistor stacking: The second resistor 2 is stacked on the first resistor 1 in a mirror image. This method achieves efficient use of space, compact structure, and more uniform and stable electrical performance of the resistors.

[0054] Positioning by limiting blocks: A first limiting block 101 mounted on the first resistor piece 1 is fitted inside the second resistor piece 2, and a second limiting block 201 mounted on the second resistor piece 2 is fitted inside the first resistor piece 1. This fitting provides precise positioning for the first resistor piece 1 and the second resistor piece 2, preventing relative displacement or shaking during use, ensuring the stability of the overall structure, enhancing mechanical strength, extending the service life of the resistor pieces, and helping to maintain the stability of the electrical connection.

[0055] Guide post 204 assists in installation: The guide post 204 installed on the second resistor piece 2 is sleeved inside the first resistor piece 1. When the second resistor piece 2 is installed onto the first resistor piece 1, the guide post 204 plays a guiding role, guiding the second resistor piece 2 to accurately stack and mate with the first resistor piece 1, avoiding installation deviations and misalignments, improving assembly accuracy and efficiency, and at the same time enhancing the connection strength between the two, making the fit tighter.

[0056] Wiring and Electrical Performance Assurance: The first resistor element 1 has a first wiring hole 103, and several first protrusions 102 arranged in a circular array inside the hole. When the wire is inserted into the first wiring hole 103 for soldering, the first protrusions 102 increase the soldering friction, better fit with the wire, prevent slippage, and improve soldering stability. At the same time, they increase the contact area between the wire and the inner wall of the wiring hole, making the current conduction uniform, reducing contact resistance, and improving electrical performance.

[0057] The second resistor 2 has a second wiring hole 202, and several second protrusions 203 arranged in a ring array inside the hole. Their function is similar to that of the first protrusions 102 in the first wiring hole 103: when wiring the second resistor 2, they increase the welding friction and stability, fix the wires, prevent loosening or displacement, increase the contact area, reduce the contact resistance, and ensure the stable operation of the resistor in the circuit.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compact resistor sheet, comprising a first resistor sheet (1) and a second resistor sheet (2), wherein the first resistor sheet (1) is provided with the second resistor sheet (2), characterized in that: A first limiting block (101) is installed on the first resistor (1), and a second limiting block (201) is installed on the second resistor (2). A first wiring hole (103) is opened on the first resistor (1), and a second wiring hole (202) is opened on the second resistor (2). The second resistor (2) is equipped with a guide post (204).

2. The compacted resistance sheet according to claim 1, wherein: The second resistor (2) is stacked on top of the first resistor (1) in a mirror image.

3. The compacted resistance sheet according to claim 1, wherein: The first wiring hole (103) is provided with a plurality of first protrusions (102), and the plurality of first protrusions (102) are arranged in a ring array relative to the first wiring hole (103).

4. The compacted resistance sheet according to claim 1, wherein: The second wiring hole (202) is provided with a plurality of second protrusions (203), and the plurality of second protrusions (203) are arranged in a ring array relative to the second wiring hole (202).

5. The compacted resistance sheet according to claim 1, wherein: The first limiting block (101) is fitted inside the second resistor (2), and the second limiting block (201) is fitted inside the first resistor (1).

6. The compacted resistance sheet according to claim 1, wherein: The guide post (204) is sleeved inside the first resistor (1).

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