N-type adapter
By adopting an over-winning pressure matching structure, the bushing is combined with the main body shell, which solves the problems of complex assembly and unstable performance of N-type female connectors, and improves stability and life.
Patent Information
- Application Number
- CN202421639901.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing N-type female connectors are assembled through split pressure and firm rivets, resulting in port recesses in the finished product, affecting the stability of electrical performance and increasing potential risks.
The over-win pressure matching structure is adopted to combine the bushing with the main body shell, eliminating the riveting process, and meeting the standard port size through the press fit between the bushing and the main body shell, ensuring that the product appearance is not separated, reducing labor costs and improving service life.
It achieves the reduction of product performance risks, reduces unnecessary losses, and improves the stability and service life of the connector.
Smart Images

Figure CN223260918U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an N-type adapter. Background Art
[0002] A Type-N female connector is a specific type of radio frequency (RF) connector that has the characteristics of a female connector, i.e., a jack or socket designed to receive a corresponding Type-N male connector. The Type-N connector is a threaded connector widely used in high-power and medium-frequency microwave and RF applications.
[0003] Currently, conventionally produced female connectors are press-fitted and riveted together, making assembly complex and resulting in concave ports on the finished product, which can negatively impact electrical performance. This can also lead to unstable performance after assembly. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide an N-type adapter, which adopts a press-fit structure to allow the bushing and the main body to be combined to meet the standard port, thereby reducing product performance risks and unnecessary main body losses.
[0005] Based on the technical problems existing in the background technology, the utility model proposes an N-type adapter, including a main shell, a bushing installed at one end of the main shell, an insulator installed inside the main shell, an inner conductor pressed into the insulator, a pressure tail installed at the lower side of the main shell, a blind cover hole provided at the end of the main shell, and a blind cover assembly installed in the blind cover hole.
[0006] Preferably, the bushing is press-fitted on one end of the main body shell, and the inner conductor passes through the insulator and extends into the bushing.
[0007] Preferably, the size of the opening end of the bushing should be at least larger than the size of the opening end of the main body shell, and the bushing port extends outward and is press-fitted at the port of the main body shell.
[0008] Preferably, the blind cover assembly includes: an isolation piece provided at one end of the blind cover; an annular groove is provided on the blind cover; and a rubber ring is installed in the annular groove.
[0009] Preferably, the isolation sheet and the blind cover are sequentially installed in the blind cover hole, the blind cover and the rubber ring are cooperated and installed in the blind cover hole, and the rubber ring contacts the inner wall of the blind cover hole.
[0010] Preferably, the pressure tail is vertically installed below the main body shell and close to the cover hole.
[0011] Compared with the prior art, the N-type adapter proposed in this utility model adopts the above technical solution and achieves the following technical effects:
[0012] 1. The utility model differentiates the port size to the bushing by press-fitting, ensuring that the split structure cannot be seen from the appearance of the product;
[0013] 2. The utility model combines the bushing with one end of the main shell through a press-fit method to meet the standard port size, eliminating the riveting process, reducing labor costs, lowering product performance risks, increasing service life, and reducing product loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a partial cross-sectional structural schematic diagram of the present utility model.
[0015] In the figure: 1. Main body shell; 2. Bushing; 3. Insulator; 4. Inner conductor; 5. Pressure tail; 6. Blind cover hole; 7. Blind cover assembly; 71. Blind cover; 72. Spacer; 73. Ring groove; 74. Rubber ring. DETAILED DESCRIPTION
[0016] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0017] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0018] Reference Figure 1 The utility model proposes an N-type adapter, including a main shell 1, a bushing 2 is installed at one end of the main shell 1, an insulator 3 is installed inside the main shell 1, an inner conductor 4 is pressed into the insulator 3, a pressure tail 5 is installed at the lower side of the main shell 1, and a blind cover hole 6 is provided at the end of the main shell 1, and a blind cover assembly 7 is installed in the blind cover hole 6.
[0019] In this embodiment, a cylindrical main housing 1 is manufactured from high-quality metal (such as copper or stainless steel) through casting or CNC machining. One end of the main housing 1 is designed to engage with the bushing 2, and the other end is provided with a blind hole 6 for mounting a blind cap assembly 7. A cylindrical insulator 3 is manufactured from a suitable insulating material (such as polytetrafluoroethylene (PTFE)) and precisely fitted within the main housing 1. An inner conductor 4, made of a conductive material (such as silver or silver-plated copper wire), passes through the insulator 3 and extends into the bushing 2.
[0020] Specifically, the bushing 2 is press-fitted on one end of the main housing 1 , and the inner conductor 4 passes through the insulator 3 and extends into the bushing 2 .
[0021] Specifically, the size of the opening end of the bushing 2 should be at least larger than the size of the opening end of the main shell 1 , and the end of the bushing 2 extends outward and is press-fitted at the end of the main shell 1 .
[0022] In this embodiment, the bushing 2 is made of the same or compatible material as the main housing 1. The opening end of the bushing 2 is larger than the opening end of the main housing 1, and its port extends outward so that it can be firmly press-fitted at the corresponding port of the main housing 1.
[0023] Specifically, the cover assembly 7 includes 71 , an isolation piece 72 is provided at one end of the cover 71 , an annular groove 73 is formed on the cover 71 , and a rubber ring 74 is installed in the annular groove 73 .
[0024] Specifically, the isolation piece 72 and the blind cover 71 are sequentially installed in the blind cover hole 6 , the blind cover 71 and the rubber ring 74 are cooperated and installed in the blind cover hole 6 , and the rubber ring 74 contacts the inner wall of the blind cover hole 6 .
[0025] In this embodiment, a blind cover 71 is fabricated, with a spacer 72 positioned at one end. An annular groove 73 is formed on blind cover 71. A rubber ring 74 is installed in annular groove 73, ensuring close contact with the inner wall of blind cover hole 6 to provide a good seal. Blind cover 71, along with spacer 72 and rubber ring 74, is then installed in sequence within blind cover hole 6 to prevent the ingress of dust and moisture.
[0026] Specifically, the pressure tail 5 is vertically installed below the main shell 1 and near the cover hole 6.
[0027] In this embodiment, the press-fit method is still used, which is the same as the general production process, but the rivet structure is omitted, and the size of the port surface φ13.5*1.5mm is differentiated into the press-fit bushing to ensure that the split structure cannot be seen from the appearance of the product. During specific production, the win-win press-fit method is used to combine the bushing with the main body to meet the standard port size, eliminate the riveting process, reduce labor costs, reduce product performance risks, increase service life, and reduce product loss.
[0028] It is worth mentioning that when the bushing 2 and the main shell 1 need to be installed, it is only necessary to use a press to press the bushing 2 to the corresponding position to ensure that the port size meets the standard requirements. This operation improves the stability of the press-fit, reduces labor costs, and also improves the practicality of the utility model.
[0029] After assembly, electrical performance tests (such as impedance and frequency response tests) are performed to ensure that there is no leakage or short circuit at all connections. Mechanical strength tests and environmental adaptability tests (such as temperature and humidity tests) are also performed to verify the durability and reliability of the connector.
[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An N-type adapter, characterized in that: The invention comprises a main shell (1), a bushing (2) is installed at one end of the main shell (1), an insulator (3) is installed inside the main shell (1), an inner conductor (4) is pressed into the insulator (3), a pressure tail (5) is installed below one side of the main shell (1), a blind hole (6) is provided at the end of the main shell (1), and a blind assembly (7) is installed in the blind hole (6).
2. The N-type adapter according to claim 1, characterized in that: The bushing (2) is press-fitted onto one end of the main body housing (1), and the inner conductor (4) passes through the insulator (3) and extends into the bushing (2).
3. The N-type adapter according to claim 2, characterized in that: The size of the opening end of the bushing (2) should be at least larger than the size of the opening end of the main body shell (1), and the end of the bushing (2) extends outward and is press-fitted at the end of the main body shell (1).
4. The N-type adapter according to claim 1, characterized in that: The blind cover assembly (7) comprises a blind cover (71), one end of the blind cover (71) is provided with an isolation sheet (72), an annular groove (73) is formed on the blind cover (71), and a rubber ring (74) is installed in the annular groove (73).
5. The N-type adapter according to claim 4, characterized in that: The isolation sheet (72) and the blind cover (71) are sequentially installed in the blind cover hole (6), the blind cover (71) and the rubber ring (74) are cooperatively installed in the blind cover hole (6), and the rubber ring (74) contacts the inner wall of the blind cover hole (6).
6. The N-type adapter according to claim 1, characterized in that: The pressure tail (5) is vertically mounted below the main housing (1) at a position close to the blind cover hole (6).