Coaxial resistor module

Abstract

The utility model discloses a coaxial resistor module, which comprises a main body piece and a plurality of adapters, the main body piece comprises a first shell and a first module, the first shell is through along the axial direction, the first module is positioned at the first end of the first shell, and the coaxial resistor module can provide accurate impedance matching in high-frequency application due to the structural design of the first module. And signal reflection and loss are effectively reduced, so that the quality and stability of signal transmission are improved. The adapter is detachably assembled on the main body part so as to form the coaxial resistor module together with the main body part, on one hand, adapters of different specifications can be selected for assembly according to installation conditions and / or detection requirements, the universality of the coaxial resistor module is improved, on the other hand, the coaxial resistor module can be conveniently disassembled, the first channel can be conveniently opened, and the coaxial resistor module can be conveniently assembled. In this way, the internal resistor component can be overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a coaxial resistor module. Background Art

[0002] In power systems and electronic test equipment, coaxial resistors are a special type of resistor that has a coaxial design that enables it to be used in high-frequency applications without introducing additional parasitic capacitance and inductance. This design allows the coaxial resistor to provide accurate impedance matching in high-frequency signal paths, thereby reducing signal reflections and losses.

[0003] At present, the coaxial resistor modules in the existing technology have the problems of low versatility and single application scenarios. When the installation space or detection requirements in the working circuit change, new specifications of coaxial resistor modules need to be designed for assembly, and their internal components are difficult to repair. Utility Model Content

[0004] The utility model aims to provide a coaxial resistance module which has good versatility and is convenient for maintenance.

[0005] In order to solve the above technical problems, the utility model provides a coaxial resistance module, comprising:

[0006] A main body, comprising a first shell and a first module, wherein the first shell forms a first channel that penetrates the first shell in the axial direction and has a first end and a second end that are arranged opposite to each other in the axial direction, the first module is arranged at the first end, the first module comprises a first electrode sheet, a second electrode sheet, a first resistor, a first connector and a second connector, the first electrode sheet and the second electrode sheet are located at the end side of the first channel at the first end, the first resistor, the first connector and the second connector are arranged in the first channel, the first resistor extends in the axial direction and one end is connected to the first electrode sheet, and the other end is connected to the first connector that extends in the radial direction, the second connector extends in the axial direction and one end is connected to the first connector, and the other end is connected to the second electrode sheet, the first channel is open at the second end, and the first shell is provided with a connecting portion at the second end; and,

[0007] There are multiple adapter parts, each of which is provided with a connecting matching part that is adapted to the connecting part, so that one of the multiple adapter parts can be detachably connected to the main body and block the end side of the first channel at the second end, thereby being assembled with the main body to form the coaxial resistor module.

[0008] In one embodiment, the second electrode sheet is disposed around the outer circumference of the first electrode sheet, and a first insulating tube is disposed between the second electrode sheet and the first electrode sheet.

[0009] In one embodiment, the first shell and the first insulating tube are made of ceramic.

[0010] In one embodiment, the first connecting member is arranged in a plate shape extending radially, and the outer periphery is fixed to the inner wall of the first shell, and the second connecting member is arranged in a rod shape, and at least two of the second connecting members are arranged at intervals in the circumferential direction on the outer periphery of the first resistor.

[0011] In one embodiment, the plurality of adapters include a coaxial module, which includes a second shell and a second module, the second shell forms a second channel axially penetrating the second shell, and has a third end and a fourth end axially opposite to each other, the second module is arranged at the fourth end, the second module includes a third electrode sheet, a fourth electrode sheet, a second resistor, a third connecting member and a fourth connecting member, the third electrode sheet and the fourth electrode sheet are located on the end side of the second channel at the fourth end, the second resistor, the third connecting member and the fourth connecting member are arranged in the second channel, the second resistor extends axially and one end is connected to the third electrode sheet, and the other end is connected to the third connecting member extending radially, the fourth connecting member extends axially and one end is connected to the third connecting member, and the other end is connected to the fourth electrode sheet, the second channel is open at the third end, and the second shell is provided with the connecting mating portion at the third end.

[0012] In one embodiment, the fourth electrode sheet is arranged around the outer circumference of the third electrode sheet, and a second insulating tube is arranged between the fourth electrode sheet and the third electrode sheet.

[0013] In one embodiment, the second shell and the second insulating tube are made of ceramic.

[0014] In one embodiment, the third connecting member is arranged in a plate shape extending radially, and its outer periphery is fixed to the inner wall of the second shell body, and the fourth connecting member is arranged in a rod shape, and at least two of them are provided, and at least two of the fourth connecting members are distributed at intervals in the circumferential direction on the outer periphery of the second resistor body.

[0015] In one embodiment, the plurality of adapters further include a plurality of gauge blocks, the plurality of gauge blocks have different axial sizes, each of the gauge blocks is respectively provided with the connecting fitting portion, and can be selectively connected to the main body.

[0016] In one embodiment, one of the connecting portion and the connecting mating portion is an external thread, and the other is an internal thread.

[0017] The technical solution provided by the utility model has the following advantages:

[0018] The coaxial resistor module provided by the utility model includes a main body and a plurality of adapters. The main body includes a first shell that penetrates along the axial direction and a first module located at the first end of the first shell. The structural design of the first module enables the coaxial resistor module to provide accurate impedance matching in high-frequency applications, effectively reduce signal reflection and loss, and thus improve the quality and stability of signal transmission. The adapter can be detachably assembled on the main body to form a coaxial resistor module together with the main body. On the one hand, adapters of different specifications can be selected for assembly according to installation conditions and / or detection requirements to improve the versatility of the coaxial resistor module. On the other hand, the coaxial resistor module can be easily disassembled to open the first channel to inspect the resistor components inside it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of an embodiment of a coaxial resistor module provided by the utility model in an installed state;

[0021] Figure 2 for Figure 1 Front view of the coaxial resistor module;

[0022] Figure 3 for Figure 2 Exploded diagram of the coaxial resistor module;

[0023] Figure 4 for Figure 3 Cross-sectional view of the coaxial resistor module;

[0024] Figure 5 A front view of another embodiment of the coaxial resistor module provided by the utility model;

[0025] Figure 6 for Figure 5 Exploded diagram of the coaxial resistor module;

[0026] Figure 7 for Figure 6 Cross-sectional view of the coaxial resistor module.

[0027] Description of reference numerals:

[0028] 100-coaxial resistor module; 10-main body; 11-first shell; 110-first channel; 111-first end; 112-second end; 12-first module; 121-first electrode sheet; 122-second electrode sheet; 123-first resistor; 124-first connecting piece; 125-second connecting piece; 126-first insulating tube; 13-connecting part; 20-coaxial module; 21-second shell; 210-second channel; 211-third end; 212-fourth end; 22-second module; 221-third electrode sheet; 222-fourth electrode sheet; 223-second resistor; 224-third connecting piece; 225-fourth connecting piece; 226-second insulating tube; 23-connecting mating part; 30-gauge block; 200-mounting shell; 201-connecting contact. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0031] The utility model provides a coaxial resistor module 100 for detecting large current in a working circuit. The installation method of one embodiment is as follows: Figure 1 As shown, a mounting shell 200 is provided in the working environment. The specific shape and material of the mounting shell 200 can be various, and it has a mounting structure that limits the coaxial resistor module 100 in the axial direction. A connecting contact 201 can be provided at at least one end of the mounting shell 200 in the axial direction. The connecting contact 201 is used to connect the electrodes on the coaxial resistor module 100, supply current to the resistor in the coaxial resistor module 100, and transmit the voltage signal of the coaxial resistor module 100 to the detection equipment to monitor the current change of the coaxial resistor module 100.

[0032] See also Figures 2 to 4The coaxial resistor module 100 includes a main body 10 and an adapter, wherein a coaxial shunt is arranged in the main body 10, which includes a first shell 11 and a first module 12, wherein the first shell 11 forms a first channel 110 that axially penetrates the first shell 11, and preferably, the first channel 110 is arranged in a cylindrical shape with an axis extending axially, and has a first end 111 and a second end 112 that are arranged oppositely in the axial direction. The first module 12 is arranged at the first end 111, and the first module 12 includes a first electrode sheet 121, a second electrode sheet 122, a first resistor 123, a first connector 124 and a second connector 125, wherein the first electrode sheet 121 and the second electrode sheet 122 are located at the end side of the first channel 110 at the first end 111, and are arranged separately to avoid short circuit.

[0033] The first resistor 123, the first connector 124 and the second connector 125 are arranged in the first channel 110. The first resistor 123 extends axially and is connected to the first electrode sheet 121 at one end, and is connected to the first connector 124 extending radially at the other end. The specific shape of the first resistor 123 is not limited, for example, it can be metal, carbon or other materials with a certain resistivity, and its resistance value can be selected as needed. It can be selected and designed according to the required resistance value, preferably metal. The second connector 125 extends axially, and is connected to the first connector 124 at one end, and is connected to the second electrode sheet 122 at the other end. Preferably, the first connector 124 is arranged in a plate shape extending radially, and the outer periphery is fixed to the inner wall of the first shell 11, and the second connector 125 is arranged in a rod shape, and at least two are provided, and at least two second connectors 125 are distributed at intervals on the outer periphery of the first resistor 123 in the circumferential direction. The first channel 110 is open at the second end 112 , and the first shell 11 is provided with a connecting portion 13 at the second end 112 .

[0034] In an optional embodiment, the second electrode sheet 122 is arranged around the outer periphery of the first electrode sheet 121, and a first insulating tube 126 is arranged between the second electrode sheet 122 and the first electrode sheet 121. In this way, reliable insulation between the first electrode and the second electrode is achieved to avoid short circuit. Preferably, the material of the first shell 11 and the first insulating tube 126 is ceramic, so that the first shell 11 and the first insulating tube 126 have good insulation performance and are easy to manufacture.

[0035] There may be a plurality of adapters, and they are selectively connected to the main body 10. Each adapter is provided with a connection matching portion 23 adapted to the connection portion 13, so that one of the plurality of adapters can be detachably connected to the main body and block the end side of the first channel 110 at the second end 112, thereby being assembled with the main body 10 to form the coaxial resistor module 100.

[0036] The specific structure of the connecting portion 13 and the connecting matching portion 23 can be set as needed, as long as the connection is reliable and easy to disassemble, for example, it can be a mutually adapted snap-fit ​​structure, a screw connection structure, etc. Figure 3 and Figure 4 As shown, one of the connecting portion 13 and the connecting matching portion 23 is an external thread, and the other is an internal thread.

[0037] In this embodiment, when the coaxial resistor module 100 is working, the current flows from the first electrode to the first connector 124, the second connector 125 and the second electrode in sequence. The structural design of the first module 12 enables the coaxial resistor module 100 to provide accurate impedance matching in high-frequency applications, effectively reducing signal reflection and loss, thereby improving the quality and stability of signal transmission. The adapter can be detachably assembled on the main body 10 to form the coaxial resistor module 100 together with the main body 10. On the one hand, adapters of different specifications can be selected for assembly according to installation conditions and / or detection requirements to improve the versatility of the coaxial resistor module 100. On the other hand, the coaxial resistor module 100 can be easily disassembled to open the first channel 110 to inspect the resistance components inside it.

[0038] The specific shape and structure of each adapter can be designed as needed. In an embodiment provided by the present utility model, please refer to Figures 2 to 4The plurality of adapters include a coaxial module 20, the coaxial module 20 includes a second shell 21 and a second module 22, the second shell 21 forms a second channel 210 that penetrates the second shell 21 in the axial direction, and has a third end 211 and a fourth end 212 that are arranged opposite to each other in the axial direction, the second module 22 is arranged at the fourth end 212, the second module 22 includes a third electrode sheet 221, a fourth electrode sheet 222, a second resistor 223, a third connector 224 and a fourth connector 225, the third electrode sheet 221 and the fourth electrode sheet 222 are located at the end side of the second channel 210 at the fourth end 212, and are separated to avoid short circuit. The second resistor 223, the third connector 224 and the fourth connector 225 are arranged in the second channel 210, the second resistor 223 extends in the axial direction and one end is connected to the third electrode sheet 221, and the other end is connected to the third connector 224 that extends in the radial direction. The specific shape of the second resistor 223 is not limited, for example, it can be metal, carbon or other materials with a certain resistivity, and its resistance value can be selected as needed. It can be selected and designed according to the required resistance value, preferably metal. The fourth connecting member 225 extends axially, and one end is connected to the third connecting member 224, and the other end is connected to the fourth electrode sheet 222. Preferably, the third connecting member 224 is arranged in a plate shape extending in the radial direction, and the outer periphery is fixed to the inner wall of the second shell 21, and the fourth connecting member 225 is arranged in a rod shape, and at least two are provided, and at least two of the fourth connecting members 225 are distributed at intervals on the outer periphery of the second resistor 223 in the circumferential direction. The second channel 210 is arranged in an open position at the third end 211, and the second shell 21 is provided with the connecting matching portion 23 at the third end 211.

[0039] In an optional embodiment, the fourth electrode sheet 222 is arranged around the outer periphery of the third electrode sheet 221, and a second insulating tube 226 is arranged between the fourth electrode sheet 222 and the third electrode sheet 221. Preferably, the second shell 21 and the second insulating tube 226 are made of ceramic, so that the second shell 21 and the second insulating tube 226 have good insulation performance and are easy to manufacture.

[0040] In this embodiment, the adapter may include a coaxial module 20, which is mounted on the other end of the main body 10 and can provide another set of coaxial shunt structures. In a working circuit that requires two sets of coaxial resistors, such as Figure 1 As shown, the coaxial module 20 can be assembled on the main body 10 to form a coaxial resistor module 100 and then installed in the mounting shell 200 for testing. It is understood that the adapter can include multiple coaxial modules 20 with different resistance values ​​and / or size specifications, so that they can be installed according to needs.

[0041] On the basis of the above embodiment, the plurality of adapters further include a plurality of gauge blocks 30, the plurality of gauge blocks 30 have different sizes in the axial direction, each gauge block 30 is respectively provided with the connection fitting portion 23, and can be selectively connected to the main body 10. In this embodiment, in a working circuit that only requires one set of coaxial resistors, gauge blocks 30 of appropriate sizes can be assembled on the main body 10, and after forming the coaxial resistor module 100, they can be installed in the mounting shell 200 for testing.

[0042] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A coaxial resistor module, characterized in that: include: A main body, comprising a first shell and a first module, wherein the first shell forms a first channel that penetrates the first shell in the axial direction and has a first end and a second end that are arranged opposite to each other in the axial direction, the first module is arranged at the first end, the first module comprises a first electrode sheet, a second electrode sheet, a first resistor, a first connector and a second connector, the first electrode sheet and the second electrode sheet are located at the end side of the first channel at the first end, the first resistor, the first connector and the second connector are arranged in the first channel, the first resistor extends in the axial direction and one end is connected to the first electrode sheet, and the other end is connected to the first connector that extends in the radial direction, the second connector extends in the axial direction and one end is connected to the first connector, and the other end is connected to the second electrode sheet, the first channel is open at the second end, and the first shell is provided with a connecting portion at the second end; and, There are multiple adapter parts, each of which is provided with a connecting matching part that is adapted to the connecting part, so that one of the multiple adapter parts can be detachably connected to the main body and block the end side of the first channel at the second end, thereby being assembled with the main body to form the coaxial resistor module.

2. The coaxial resistor module according to claim 1, characterized in that: The second electrode sheet is arranged around the outer circumference of the first electrode sheet, and a first insulating tube is arranged between the second electrode sheet and the first electrode sheet.

3. The coaxial resistor module according to claim 2, characterized in that: The first shell and the first insulating tube are made of ceramic.

4. The coaxial resistor module according to claim 2, characterized in that: The first connecting member is arranged in a plate shape extending radially, and its outer periphery is fixed to the inner wall of the first shell. The second connecting member is arranged in a rod shape, and at least two of them are provided. The at least two second connecting members are distributed at intervals on the outer periphery of the first resistor in the circumferential direction.

5. The coaxial resistor module according to claim 1, characterized in that: The multiple adapters include a coaxial module, which includes a second shell and a second module. The second shell forms a second channel that penetrates the second shell in the axial direction and has a third end and a fourth end that are oppositely arranged in the axial direction. The second module is arranged at the fourth end. The second module includes a third electrode sheet, a fourth electrode sheet, a second resistor, a third connecting member and a fourth connecting member. The third electrode sheet and the fourth electrode sheet are located on the end side of the second channel at the fourth end. The second resistor, the third connecting member and the fourth connecting member are arranged in the second channel. The second resistor extends in the axial direction and one end is connected to the third electrode sheet, and the other end is connected to the third connecting member extending in the radial direction. The fourth connecting member extends in the axial direction and one end is connected to the third connecting member, and the other end is connected to the fourth electrode sheet. The second channel is open at the third end, and the second shell is provided with the connecting mating portion at the third end.

6. The coaxial resistor module according to claim 5, characterized in that: The fourth electrode sheet is arranged around the outer circumference of the third electrode sheet, and a second insulating tube is arranged between the fourth electrode sheet and the third electrode sheet.

7. The coaxial resistor module according to claim 6, characterized in that: The second shell and the second insulating tube are made of ceramic.

8. The coaxial resistor module according to claim 6, characterized in that: The third connecting member is arranged in a plate shape extending radially, and its outer periphery is fixed to the inner wall of the second shell. The fourth connecting member is arranged in a rod shape, and at least two of them are provided. At least two of the fourth connecting members are distributed at intervals on the outer periphery of the second resistor in the circumferential direction.

9. The coaxial resistor module according to any one of claims 5 to 8, characterized in that: The plurality of adapters further include a plurality of gauge blocks, the plurality of gauge blocks have different axial sizes, each of the gauge blocks is respectively provided with the connecting fitting portion and can be selectively connected to the main body.

10. The coaxial resistor module according to claim 9, characterized in that: One of the connecting portion and the connecting matching portion is an external thread, and the other is an internal thread.

Images