An electronic calibration component with long service life

Abstract

The present invention discloses an electronic calibration component with a long service life, comprising a housing, a switch module disposed within the housing, a switch module connector disposed on the switch module, and a fixing bracket disposed on the housing and extending beyond the switch module connector. The fixing bracket is connected to an end of the fixing bracket remote from the switch module, a port connector for direct connection to a signal line. The port connector is connected to the switch module connector, and the fixing bracket is separate from the switch module connector. The fixing bracket is disposed throughout the housing, and the port connector is provided with a stepped surface for supporting the end of the fixing bracket facing away from the switch module. The present invention can extend the service life of the port connector, enabling the electronic calibration component to maintain high accuracy over a long period of time.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic calibration components, and in particular to an electronic calibration component with a long service life. Background Art

[0002] An electronic calibration module is a device used to calibrate electronic measuring instruments. It provides known and precise electrical parameters to quickly, easily, and accurately calibrate a vector network analyzer, ensuring the accuracy and reliability of its measurement results.

[0003] Electronic calibration components need to have high accuracy and stability. Existing electronic calibration components such as Figure 1 As shown, it usually includes a shell 1, a switch module 2 is provided in the shell 1, and a port connector 5 for directly connecting to the signal line is connected to the switch module 2. After long-term use, the port connector 5 and the signal line are frequently plugged and unplugged. Since the port connector 5 is easily caused to swing when the signal line is connected to the port connector 5, one end of the port connector 5 located in the switch module 2 is misaligned, affecting the accuracy of the electronic calibration component. Summary of the Invention

[0004] An object of the present invention is to provide an electronic calibration component with a long service life, which can extend the service life of a port connector and enable the electronic calibration component to maintain high accuracy for a long time.

[0005] In order to solve the above technical problems, the present invention adopts the following solutions:

[0006] An electronic calibration component with a long service life includes a housing, a switch module disposed within the housing, a switch module connector disposed on the switch module, a fixing bracket disposed on the housing and sleeved over the switch module connector, a port connector for direct connection to a signal line connected to the fixing bracket at one end of the fixing bracket away from the switch module, the port connector being connected to the switch module connector, and the fixing bracket being separated from the switch module connector. The switch module is fixedly connected within the housing, and the fixing bracket is connected to the side wall of the switch module by bolts. The switch module connector, the fixing bracket, and the port connector are coaxially arranged. The switch module connector and the fixing bracket are configured so that, when a signal line is connected to the port connector, the swing caused by the signal line on the port connector is transmitted to the fixing bracket and then to the housing, but not to the switch module connector, thereby extending the service life of the port connector and enabling the electronic calibration component to maintain high accuracy over a long period of time.

[0007] Furthermore, the fixing bracket is disposed through the housing, and the port connector is provided with a stepped surface for supporting the end of the fixing bracket facing away from the switch module. The stepped surface serves to limit movement of the port connector toward the switch module, thereby preventing the port connector from exerting excessive axial pressure on the switch module connector.

[0008] Furthermore, the port connector is provided with an embedding section for embedding into the fixing bracket, and the fixing bracket is provided with an embedding hole for embedding the embedding section, and the embedding section is threadedly connected to the embedding hole. The design of the embedding section and the embedding hole, as well as their dimensional relationship, can minimize the swinging of the port connector on the fixing bracket.

[0009] Furthermore, the switch module connector includes a section positioned within the embedding hole, and the inner diameter of the embedding hole is larger than the maximum outer diameter of the switch module connector section positioned within the embedding hole. This design of the inner diameter of the embedding hole prevents the fixing bracket from contacting the switch module connector when it swings, thereby preventing the switch module connector from changing its position and spatial configuration.

[0010] Furthermore, the fixing bracket has a recessed slot on one end facing the switch module for accommodating the switch module connector. The outer diameter of the recessed slot is larger than the maximum outer diameter of the switch module connector. This recessed slot and its dimensions ensure that the fixing bracket can both protect the switch module connector and allow the switch module connector to be separated from the fixing bracket.

[0011] Furthermore, the switch module connector has a reinforcement rib on its central outer wall. The switch module connector includes a connecting section on the side of the reinforcement rib facing away from the switch module. The port connector has a countersunk hole on the end facing the switch module for receiving the connecting section. The connection section and the countersunk hole facilitate maintaining coaxiality between the switch module connector and the port connector.

[0012] Furthermore, the length of the connecting section is greater than the depth of the countersunk hole, and the connecting section and the countersunk hole are clearance-matched. Its function is to prevent the slight swing of the port connector from being transmitted to the switch module connector through the design of the size relationship between the connecting section and the countersunk hole.

[0013] Furthermore, a pin is provided on the end face of the connecting section facing away from the switch module, and an interface for inserting the pin is provided within the countersunk hole. The length of the pin is less than the depth of the interface, and the pin and the interface are seamlessly matched. The end of the switch module connector facing the switch module is arranged parallel to the end of the switch module connector facing away from the switch module connector. A support surface is provided within the switch module for closely supporting the end face of the switch module connector facing the switch module.

[0014] Furthermore, the connecting section has a first movable hole at the end facing away from the switch module. A connecting post is located within the first movable hole. A pin is located on the connecting post at the end facing away from the switch module. A second movable hole is located within the counterbore. An interface post is located within the second movable hole. The interface post is located at the end of the interface post facing the switch module. The inner diameter of the first movable hole is greater than the outer diameter of the connecting post, while the inner diameter of the second movable hole is greater than the outer diameter of the interface post. The outer diameter of the connecting post is greater than the outer diameter of the pin, and the outer diameter of the interface post is greater than the inner diameter of the interface post. The depth of the second movable hole is greater than the length of the interface post, thereby preventing direct contact between the end faces of the interface post and the connecting post. The second movable hole allows the interface post to oscillate within the second movable hole when the port connector experiences slight oscillation, thereby maintaining coaxiality between the interface post and the connecting post. The first movable hole allows the connecting post to oscillate within the first movable hole when slight oscillation of the interface post is transmitted to the pin, thereby preventing the oscillation of the connecting post from being directly transmitted to the end of the switch module connector facing the switch module.

[0015] Furthermore, gripping surfaces are provided on opposite sides of the outer wall of the port connector, adjacent to the switch module. The distance between the two gripping surfaces is less than the outer diameter of the outer wall on which the gripping surfaces are located, and the width of the gripping surfaces is less than the width of the outer wall on which the gripping surfaces are located. The provision of the gripping surfaces facilitates removal of the port connector without directly contacting the fixing bracket when replacing the port connector.

[0016] Furthermore, the fixing bracket is made of signal shielding material, which prevents electromagnetic signals from being transmitted outside the housing through the gap between the switch module and the switch module connector.

[0017] The present invention has the beneficial effects:

[0018] 1. Through the configuration of the switch module connector and the fixing bracket, when the signal line is connected to the port connector, the swing caused by the signal line on the port connector is transmitted to the fixing bracket and then to the housing, but not to the switch module connector, thereby extending the service life of the port connector and enabling the electronic calibration component to maintain high accuracy for a long time;

[0019] 2. The step surface can limit the movement of the port connector toward the switch module, thereby preventing the port connector from exerting excessive axial pressure on the switch module connector;

[0020] 3. By setting the clearance groove and its size, the fixing bracket can not only protect the switch module connector, but also separate the switch module connector from the fixing bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the cross-sectional structure of an electronic calibration component in the prior art;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of Example 1;

[0023] Figure 3 Schematic diagram of the cross-sectional structure of Example 1;

[0024] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure numerals: 1. Shell; 2. Switch module; 3. Switch module connector; 4. Fixing bracket; 5. Port connector; 6. Step surface; 7. Embedding section; 8. Embedding hole; 9. Makeshift groove; 10. Reinforcing rib; 11. Connecting section; 12. Countersunk hole; 13. Pin; 14. Interface; 15. First movable hole; 16. Second movable hole; 17. Connecting column; 18. Interface column; 19. Holding surface. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "having," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0029] Example 1

[0030] An electronic calibration component with a long service life, such as Figure 2As shown, the device comprises a housing 1, housing a switch module 2, which is provided with a switch module connector 3. The housing 1 is provided with a fixing bracket 4 that sleeves over the switch module connector 3. The fixing bracket 4, distal from the switch module 2, is connected to a port connector 5 for direct connection to a signal line. The port connector 5 is connected to the switch module connector 3, while the fixing bracket 4 is separate from the switch module connector 3. The switch module 2 is fixedly connected within the housing 1, and the fixing bracket 4 is bolted to the side wall of the switch module 2. The switch module connector 3, fixing bracket 4, and port connector 5 are coaxially arranged. This arrangement of the switch module connector 3 and fixing bracket 4 ensures that when a signal line is connected to the port connector 5, any swing caused by the signal line is transmitted to the fixing bracket 4 and then to the housing 1, rather than to the switch module connector 3. This improves the service life of the port connector 5 and enables the electronic calibration component to maintain high accuracy over time.

[0031] Specifically, such as Figure 3 As shown, the fixing bracket 4 is disposed throughout the housing 1, and the port connector 5 is provided with a stepped surface 6 for supporting the end of the fixing bracket 4 facing away from the switch module 2. The stepped surface 6 functions to limit the movement of the port connector 5 toward the switch module 2, thereby preventing the port connector 5 from exerting excessive axial pressure on the switch module connector 3.

[0032] Specifically, such as Figure 3 As shown, the port connector 5 is provided with an embedding section 7 for embedding into the fixing bracket 4. The fixing bracket 4 is provided with an embedding hole 8 for embedding the embedding section 7. The embedding section 7 is threadedly connected to the embedding hole 8. The design of the embedding section 7 and the embedding hole 8, as well as their dimensional relationship, can minimize the swinging of the fixing bracket 4 caused by the port connector 5.

[0033] Specifically, such as Figure 3 As shown, the switch module connector 3 has a section located within the embedding hole 8. The inner diameter of the embedding hole 8 is larger than the maximum outer diameter of the section of the switch module connector 3 located within the embedding hole 8. The design of the inner diameter of the embedding hole 8 prevents the fixing bracket 4 from contacting the switch module connector 3 when it swings, thereby preventing the position and spatial state of the switch module connector 3 from being altered.

[0034] Specifically, such as Figure 3 As shown, the end of the fixing bracket 4 facing the switch module 2 is provided with a clearance groove 9 for accommodating the switch module connector 3. The outer diameter of the clearance groove 9 is larger than the maximum outer diameter of the switch module connector 3. The clearance groove 9 and its size allow the fixing bracket 4 to both protect the switch module connector 3 and allow the switch module connector 3 to be separated from the fixing bracket 4.

[0035] Specifically, such as Figure 4 As shown, the switch module connector 3 is provided with a reinforcing rib 10 on its central outer wall. The switch module connector 3 includes a connecting section 11 located on the side of the reinforcing rib 10 facing away from the switch module 2. The port connector 5 has a countersunk hole 12 on the end facing the switch module 2, which is adapted to receive the connecting section 11. The arrangement of the connecting section 11 and the countersunk hole 12 facilitates maintaining the coaxiality between the switch module connector 3 and the port connector 5.

[0036] Specifically, such as Figure 4 As shown, the length of the connecting section 11 is greater than the depth of the countersunk hole 12, and the connecting section 11 and the countersunk hole 12 are clearance-fitted. Its function is to prevent the slight swing of the port connector 5 from being transmitted to the switch module connector 3 through the design of the size relationship between the connecting section 11 and the countersunk hole 12.

[0037] Specifically, such as Figure 4 As shown, the end face of the connecting section 11 facing away from the switch module 2 is provided with a pin 13, and a port 14 for inserting the pin 13 is provided within the counterbore 12. The length of the pin 13 is less than the depth of the port 14, and the pin 13 and the port 14 are seamlessly connected. The end of the switch module connector 3 facing the switch module 2 is arranged parallel to the end of the switch module connector 3 facing away from the switch module connector 3. The switch module 2 is provided with a support surface for closely supporting the end face of the switch module connector 3 facing the switch module 2.

[0038] Specifically, such as Figure 4 As shown, the connecting section 11 has a first movable hole 15 at the end facing away from the switch module 2. A connecting post 17 is located within the first movable hole 15. The pin 13 is located on the connecting post 17 at the end facing away from the switch module 2. A second movable hole 16 is located within the counterbore 12. An interface post 18 is located within the second movable hole 16. The interface 14 is located at the end of the interface post 18 facing the switch module 2. The inner diameter of the first movable hole 15 is greater than the outer diameter of the connecting post 17, the inner diameter of the second movable hole 16 is greater than the outer diameter of the interface post 18, the outer diameter of the connecting post 17 is greater than the outer diameter of the pin 13, and the outer diameter of the interface post 18 is greater than the inner diameter of the interface 14. The depth of the second movable hole 16 is greater than the length of the interface post 18, which prevents direct contact between the end face of the socket post and the end face of the connecting post 17. Its function is that, through the setting of the second movable hole 16, when the port connector 5 generates a slight swing, the interface column 18 can swing in the second movable hole 16, thereby maintaining the coaxiality of the interface column 18 and the connecting column 17; through the setting of the first movable hole 15, when the interface column 18 transmits a slight swing to the pin 13, the connecting column 17 can swing in the first movable hole 15, avoiding the swing received by the connecting column 17 being directly transmitted to the switch module connector 3 toward the switch module 2 end.

[0039] Specifically, such as Figure 2 As shown, gripping surfaces 19 are provided on opposite sides of the outer wall of the port connector 5, adjacent to the switch module 2. The distance between the two gripping surfaces 19 is less than the outer diameter of the outer wall on which the gripping surfaces 19 are located, and the width of the gripping surfaces 19 is less than the width of the outer wall on which the gripping surfaces 19 are located. The provision of the gripping surfaces 19 facilitates removal of the port connector 5 without directly touching the fixing bracket 4 when the port connector 5 needs to be replaced.

[0040] Specifically, the fixing bracket 4 is made of signal shielding material, which prevents electromagnetic signals from being transmitted outside the housing 1 through the gap between the switch module 2 and the switch module connector 3 .

[0041] The working principle of this embodiment is described as follows: when the signal line is connected to the port connector 5, most of the swinging motion transmitted to the port connector 5 by the signal line is transmitted to the fixing bracket 4 and then to the housing 1, thereby preventing the switch module connector 3 from swinging significantly. Through the structural design of the connecting section 11 and the countersunk hole 12, it is possible to prevent small swinging motions from being transmitted to the end of the switch module connector 3 located in the switch module 2.

[0042] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Based on the technical essence of the present invention and within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement of the above embodiment shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An electronic calibration component with a long service life, comprising a housing (1), a switch module (2) being provided in the housing (1), and characterized in that: The switch module (2) is provided with a switch module connector (3), the housing (1) is provided with a fixing bracket (4) sleeved outside the switch module connector (3), the fixing bracket (4) is connected to a port connector (5) for direct connection with a signal line at one end away from the switch module (2), the port connector (5) is connected to the switch module connector (3), and the fixing bracket (4) is separated from the switch module connector (3). A reinforcing rib (10) is provided on the middle outer wall of the switch module connector (3), the switch module connector (3) comprises a connecting section (11) located on the side of the reinforcing rib (10) facing away from the switch module (2), and a countersunk hole (12) for embedding the connecting section (11) is provided on one end of the port connector (5) facing the switch module (2). The length of the connecting section (11) is greater than the depth of the countersunk hole (12), and the connecting section (11) and the countersunk hole (12) are clearance-fitted. A pin (13) is provided on the end surface of the connecting section (11) facing away from the switch module (2), and an interface (14) for inserting the pin (13) is provided in the countersunk hole (12). The length of the pin (13) is less than the depth of the interface (14), and the pin (13) and the interface (14) are transitionally matched. The connecting section (11) is provided with a first movable hole (15) at one end facing away from the switch module (2), a connecting column (17) is provided in the first movable hole (15), a pin (13) is provided on the connecting column (17) at one end facing away from the switch module (2), a second movable hole (16) is provided in the counterbore (12), an interface column (18) is provided in the second movable hole (16), an interface (14) is provided at one end of the interface column (18) facing the switch module (2), an inner diameter of the first movable hole (15) is larger than an outer diameter of the connecting column (17), an inner diameter of the second movable hole (16) is larger than an outer diameter of the interface column (18), an outer diameter of the connecting column (17) is larger than an outer diameter of the pin (13), and an outer diameter of the interface column (18) is larger than an inner diameter of the interface (14).

2. The electronic calibration component with a long service life according to claim 1, characterized in that: The fixing bracket (4) is arranged to pass through the housing (1), and the port connector (5) is provided with a step surface (6) for supporting the end of the fixing bracket (4) facing away from the switch module (2).

3. The electronic calibration component with a long service life according to claim 1, characterized in that: The port connector (5) is provided with an embedding section (7) for embedding into the fixing bracket (4), the fixing bracket (4) is provided with an embedding hole (8) for embedding the embedding section (7), and the embedding section (7) is threadedly connected to the embedding hole (8).

4. The electronic calibration component with a long service life according to claim 3, characterized in that: The switch module connector (3) has a section located in the embedded hole (8), and the inner diameter of the embedded hole (8) is larger than the maximum outer diameter of the section of the switch module connector (3) located in the embedded hole (8).

5. The electronic calibration component with a long service life according to claim 1, characterized in that: The fixing bracket (4) is provided with a recess (9) for accommodating the switch module connector (3) at one end thereof facing the switch module (2), and the outer diameter of the recess (9) is larger than the maximum outer diameter of the switch module connector (3).

6. The electronic calibration component with a long service life according to claim 1, characterized in that: Gripping surfaces (19) are provided on sections of the outer wall of the port connector (5) adjacent to the switch module (2) on opposite sides, the distance between the two gripping surfaces (19) is smaller than the outer diameter of the outer wall where the gripping surfaces (19) are located, and the width of the gripping surface (19) is smaller than the width of the outer wall where the gripping surfaces (19) are located.

7. The electronic calibration component with a long service life according to claim 1, characterized in that: The fixing bracket (4) is made of signal shielding material.

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