A 100w angle chip ceramic resistor

Abstract

The utility model discloses a 100W angle sheet porcelain shell resistor, especially relates to resistor structure field, including the resistor shell body and ceramic closure made of ceramic, both cooperation uses, and the inside symmetry of resistor shell body inserts electrode angle sheet, and the perforation of electrode angle sheet is set up on the closure and lets electrode angle sheet pass, and the resistance core is placed between two electrode angle sheets, and the alloy wire is uniformly wound on the resistance core, and the inner chamber of electrode angle sheet is filled with the encapsulation material, and the resistor shell body is the porcelain shell that the ceramic sintering of the alumina content in 45%~95%, and the alumina content of resistance core is 95%, because ceramic is an excellent electrical insulating material, and using ceramic as the shell body can provide good electrical insulation performance, increases the safety and reliability of resistor, uses ceramic as the shell body, avoids the short circuit problem between the shell body and electrode after alloy wire fusing after product short circuit, and also saves the production line of the insulating sheet that sets up alone, saves the cost simultaneously and also need not consider assembly error.

Description

Technical Field

[0001] This utility model relates to the field of resistor structure, and more specifically, to a 100W corner ceramic shell resistor. Background Technology

[0002] Traditional 100W resistors are mostly aluminum-cased. During the design and production process, the insulation between the resistor core and the casing needs to be considered. Currently, split mica sheets or ceramic sheets are often used as insulating sheets placed between the casing and the resistor core. Mica sheets are difficult to process and often suffer accidental damage, leading to poor withstand voltage. In addition, there is an assembly relationship between the insulating sheet and the aluminum casing, so errors are inevitable after assembly. Furthermore, a separate production line needs to be designed to produce split insulating sheets, resulting in higher overall costs. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a 100W corner ceramic shell resistor. The technical problem to be solved by the present invention is: how to reduce the assembly error of the split insulating sheet and the production cost of the resistor.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a 100W ceramic plate resistor, comprising a resistor housing and a ceramic cap made of ceramic, which are used together. Electrode plates are symmetrically inserted inside the resistor housing. The cap has through holes for the electrode plates to pass through. A resistor core is placed between the two electrode plates. Alloy wire is evenly wound on the resistor core. The inner cavity of the electrode plates is filled with encapsulating material.

[0005] In a preferred embodiment, the resistor housing is a ceramic shell made of ceramic with an alumina content of 45% to 95%.

[0006] In a preferred embodiment, the gap between the two ends of the resistor core and the inner wall of the resistor housing is 1mm to 1.2mm, and the electrode corner pieces are embedded inside the resistor core through this gap to lead out the electrodes.

[0007] In a preferred embodiment, the substrate material of the electrode corner piece is iron plated with copper and tin.

[0008] In a preferred embodiment, the alumina content of the resistor core is 95%.

[0009] In a preferred embodiment, the electrode corner pieces are rectangular.

[0010] In a preferred embodiment, the outer length of the electrode corner piece is 90-92 mm, the width is 31-33 mm, and the height is 17.5-18.5 mm.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Ceramic materials have higher mechanical strength than aluminum materials, which makes resistors more durable and able to withstand greater mechanical pressure without damage.

[0013] 2. Ceramic itself is an excellent electrical insulating material. Using ceramic as the housing can provide good electrical insulation performance, increase the safety and reliability of the resistor. Using ceramic as the housing avoids the problem of short circuit between the housing and the electrode after the alloy wire melts due to a short circuit. It also eliminates the need for a separate production line for insulating sheets, saving costs and eliminating the need to consider assembly errors.

[0014] 3. The resistor core is made of a material with an alumina content of 95%, which can improve the product's short-time overvoltage capability. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of this utility model. The embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] Figure 1 This is an external structural diagram of the ceramic-shell resistor of this utility model.

[0017] Figure 2 This is an exploded view of the internal structure of the ceramic-shell resistor of this utility model.

[0018] The attached diagram is labeled as follows: 1. Electrode corner piece; 2. Alloy wire; 3. Resistance core; 4. Encapsulation material; 5. Resistor housing. Detailed Implementation

[0019] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0020] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0021] Example

[0022] A 100W corner ceramic resistor includes an electrode corner piece 1, an alloy wire 2, a resistor core 3, an encapsulating material 4, and a resistor housing 5 made of ceramic.

[0023] During assembly, first place the resistor housing 5 horizontally on the workbench. The assembler takes two electrode plates 1 and symmetrically places them into the resistor housing 5, ensuring that the bottom of the electrode plates 1 is in contact with the bottom surface of the cavity of the resistor housing 5. Then, evenly wind the alloy wire 2 around the outside of the resistor core 3. Place the resistor core 3 with the alloy wire 2 wound around it between the two electrode plates 1. Next, pour the fluid encapsulating material 4 into the cavity of the resistor housing 5. Once the encapsulating material 4 solidifies, it will fill the gap between the cavity of the resistor housing 5 and the internal components, thus encapsulating the components. Finally, close the ceramic cap to obtain a complete resistor with high insulation performance.

[0024] The cover has two perforations, through which two electrode plates 1 located in the cavity pass to facilitate subsequent electrofusion connection. Alloy wires 2 are uniformly wound on the surface of the resistor core 3, which is encapsulated in a ceramic shell cavity by the encapsulating material 4, and the electrodes are led out through the contacting electrode plates 1.

[0025] The resistor housing 5 has stepped grooves recessed on its upper surface for placing the cover. The stepped grooves serve as a limit, and when the cover is placed in the stepped groove, the upper surface of the cover is flush with the upper surface of the resistor housing 5.

[0026] Preferably, the resistor housing 5 is made of ceramic with an alumina content of 45% to 95%, and the resistor core 3 contains an alumina content of about 95%.

[0027] Preferably, a gap of 1 mm to 1.2 mm is maintained between the resistive core 3 and the inner wall of the cavity of the resistor housing 5 for inserting the electrode corner piece 1.

[0028] Preferably, the cavity of the resistor housing 5 is filled with an encapsulating material 4, with silicone resin as the main curing agent.

[0029] Preferably, the outer length of the resistor housing 5 is 90-92 mm, the width is 31-33 mm, and the height is 17.5-18.5 mm.

[0030] In summary, using ceramic as the housing of resistors has the following advantages:

[0031] 1. Ceramic materials have higher mechanical strength than aluminum materials, which makes resistors more durable and able to withstand greater mechanical pressure without damage.

[0032] 2. Ceramic itself is an excellent electrical insulating material. Using ceramic as the housing can provide good electrical insulation performance, increase the safety and reliability of the resistor. Using ceramic as the housing also eliminates the need for a separate production line for insulating sheets, saving costs and eliminating the need to consider assembly errors.

[0033] 3. The resistor housing 5 has high thermal conductivity, which helps the resistor dissipate heat. Especially in high-power applications, it can effectively conduct heat away from the resistor, improve the thermal stability and life of the resistor, and has the same heat dissipation effect as the aluminum housing.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 100W corner ceramic shell resistor, characterized in that... include: A resistor housing (5) and a ceramic cap are used together. Electrode plates (1) are symmetrically inserted inside the resistor housing (5). The cap has perforations for the electrode plates (1) to pass through. A resistor core (3) is placed between the two electrode plates (1). Alloy wire (2) is evenly wound around the resistor core (3). The inner cavity of the electrode plates (1) is filled with encapsulating material (4). The resistor housing (5) is a ceramic shell made of ceramic with an alumina content of 45% to 95%. The gap between the two ends of the core (3) and the inner wall of the resistor housing (5) is 1mm to 1.2mm. The electrode corner piece (1) is embedded in the inside of the resistor core (3) through the gap to lead out the electrode. The base material of the electrode corner piece (1) is iron plated with copper and tin. The aluminum oxide content of the resistor core (3) is 95%. The electrode corner piece (1) is a rectangular body. The outer length of the electrode corner piece (1) ranges from 90 to 92mm, the width ranges from 31 to 33mm, and the height ranges from 17.5 to 18.5mm.

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