Integrated calibration module

Abstract

The utility model discloses an integrated calibration module, through a first shielding structure, a calibration circuit board and a second shielding structure which are detachably connected in sequence, the stability and firmness of the calibration circuit board are ensured, a first outer side wall of the first shielding structure along a first direction is provided with a first gap, and the first gap is used for accommodating a fast-edge module. The fast edge module is connected with the calibration circuit board, so that the fast edge module and the calibration module are integrated on one circuit board, and the technical problems that internal connection is disordered and the whole instrument is too large when the calibration circuit board and the fast edge module are separated independently are solved.

Description

Technical Field

[0001] The present application relates to the field of electronic equipment, and in particular to an integrated calibration module. Background Art

[0002] There are many kinds of RF modules used in the field of instrumentation on the market, among which calibration modules are very common. Calibration modules are an indispensable part of instruments such as oscilloscopes and network analyzers. Calibration modules ensure long-term stability and consistency by regularly calibrating measuring equipment, which is especially important for application scenarios that require long-term monitoring or continuous measurement, such as signal quality monitoring of communication base stations. If the signal generated by the fast-edge module is not calibrated, it may lead to erroneous measurement results, thereby affecting decision-making and system performance. The separate interconnection between the fast-edge module and the calibration module will cause confusion in the internal connections and make the instrument too large. Summary of the invention

[0003] The main purpose of the present application is to provide an integrated calibration module, aiming to solve the technical problem that the fast edge module and the calibration module are separately interconnected, which will cause confusion in the internal connections and make the entire instrument too large.

[0004] To achieve the above-mentioned purpose, the present application provides an integrated calibration module, including: a calibration circuit board, a fast-edge module and a fixing structure, wherein the fixing structure is used to fix the calibration circuit board and the fast-edge module; the fixing structure includes: a first shielding structure; a second shielding structure, which is arranged opposite to the first shielding structure and forms a cavity with the first shielding structure, and the calibration circuit board is fixed in the cavity; wherein a connection area connected to the fast-edge module is provided on the calibration circuit board; and a first notch is provided on the first shielding structure relative to the connection area, and the fast-edge module is located in the first notch and is communicatively connected with the calibration circuit board.

[0005] Optionally, the notch is opened on the first side of the first shielding structure, and the first shielding structure also has a second side opposite to the first side in the first direction; wherein, the calibration circuit board is provided with a first positioning pin, a second positioning pin and a slot extending beyond the edge of the calibration circuit board on one side along the first direction close to the second side, and the slot is close to the second positioning pin; the calibration circuit board is provided with a plurality of communication signal input interfaces, a first communication output cable and a second communication output cable on the other side along the first direction, wherein the first communication output cable and the second communication output cable are both connected to the fast edge module.

[0006] Optionally, a second notch and a third notch are provided on the second side of the first shielding structure; the second notch is used to accommodate the first positioning pin, and the third notch is used to accommodate the second positioning pin and the slot; wherein a fourth notch and a fifth notch corresponding to the second notch and the third notch respectively are provided on the second shielding structure.

[0007] Optionally, a guide plate is provided on both outer side walls of the first shielding structure in the length direction.

[0008] Optionally, the orthographic projection of the first shielding structure on the calibration circuit board has a first maximum length in the first direction, the orthographic projection of the second shielding structure on the calibration circuit board has a second maximum length in the first direction, and the first maximum length is equal to the second maximum length; the orthographic projection of the first shielding structure on the calibration circuit board has a third maximum length in the second direction, and the projection of the second shielding structure on the calibration circuit board has a fourth maximum length along the second direction; the third maximum length is equal to the fourth maximum length, and the second direction is the length direction of the first shielding structure; the calibration circuit board has a fifth maximum length along the first direction, the calibration circuit board has a sixth maximum length along the second direction, the fifth maximum length is equal to the second maximum length, and the sixth maximum length is equal to the fourth maximum length.

[0009] Optionally, the fast-edge module includes a cover plate and a rectangular box body connected to the cover plate, which is located on one side of the calibration circuit board along a third direction, and the rectangular box body is close to the first shielding structure, wherein the third direction is the thickness direction of the cavity; a fast-edge component, arranged in the rectangular box body; a plurality of mounting grooves, arranged in the rectangular box body; a plurality of insulating cylinders, one end of which is connected to the outer wall of the bottom of the rectangular box body, and the other end is inserted into the connection area; a first circular hole, arranged in the outer wall of the rectangular box body; a second circular hole, arranged in the outer wall of the first notch; a plurality of RF signal output interfaces, arranged on the outer wall of the rectangular box body close to the second circular hole.

[0010] Optionally, the fast-edge component includes: a fast-edge micro-device, fixed in the mounting groove; a first signal connector, one end of which is communicatively connected to the fast-edge micro-device, and the other end of which is connected to the first communication output cable through the first circular hole; a second signal connector, one end of which is communicatively connected to the fast-edge micro-device, and the other end of which is connected to the second communication output cable through the second circular hole.

[0011] Optionally, the first shielding structure is provided with right-angled hanging ears on both outer side walls in the length direction thereof.

[0012] Optionally, a plurality of grooves are provided on one side of the first shielding structure and the other side of the second shielding structure that are opposite to each other, and the grooves are used to place corresponding functional components of the calibration circuit board.

[0013] Optionally, a plurality of sixth notches are further provided on the outer side wall of the first shielding structure close to the first notch, and the plurality of sixth notches are used to respectively accommodate a plurality of the communication signal input interfaces.

[0014] An integrated calibration module proposed in an embodiment of the present application ensures the stability and robustness of the calibration circuit board by means of a first shielding structure, a calibration circuit board and a second shielding structure that are detachably connected in sequence. A first notch is provided on a first outer side wall of the first shielding structure along a first direction, and the first notch is used to accommodate a fast-edge module. The fast-edge module is connected to the calibration circuit board, thereby integrating the fast-edge module and the calibration module on a circuit board, thereby solving the technical problem that when the calibration circuit board and the fast-edge module are separated separately, internal connection confusion will occur and the entire instrument will be too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of an integrated calibration module provided in one embodiment of the present application;

[0016] Figure 2 A top view of the integrated calibration module structure provided in one embodiment of the present application;

[0017] Figure 3 A bottom view of the integrated calibration module structure provided in one embodiment of the present application;

[0018] Figure 4 A top view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application;

[0019] Figure 5 A front view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application;

[0020] Figure 6 A left view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] Figure 1 This is a schematic diagram of the structure of an integrated calibration module provided in an embodiment of the present application, referring to Figure 1 , an embodiment of the present application provides an integrated calibration module which may include a calibration circuit board 2, a fast edge module 4 and a fixing structure, wherein the fixing structure is used to fix the calibration circuit board 2 and the fast edge module 4; the fixing structure may include a first shielding structure 1 and a second shielding structure 3;

[0027] The second shielding structure 3 is arranged opposite to the first shielding structure 1 and forms a cavity with the first shielding structure 1, and the calibration circuit board 2 is fixed in the cavity; wherein, a connection area connected to the fast-edge module 4 is provided on the calibration circuit board 2; a first notch is provided at a position of the first shielding structure 1 relative to the connection area, and the fast-edge module 4 is located in the first notch and is communicatively connected with the calibration circuit board 2.

[0028] Among them, the integrated calibration module is designed in a sandwich form. The integrated calibration module is beneficial to signal shielding and increasing the strength of the circuit board by sandwiching the calibration circuit board 2 in the middle. The fast edge module 4 is integrated on the circuit board, which enhances the reliability of the connection between the fast edge module 4 and the calibration circuit board 2. The first shielding structure 1, the calibration circuit board 2 and the second shielding structure 3 are connected by screws to form an integrated calibration module. Specifically, the screws are fixed from the bottom of the first shielding structure 1 to the calibration circuit board 2 and the second shielding structure 3 cover along a third direction such as the Z direction in the figure. The direction of the screws is consistent for easy assembly, and the number of screws is increased at key positions, which is beneficial to improve the seismic resistance of the calibration module. The range of the first notch is based on the standard of being able to accommodate the fast edge module 4.

[0029] In this embodiment, Figure 2 This is a top view of the integrated calibration module structure provided in one embodiment of the present application, refer to Figure 2 , a notch is provided on a first side of the first shielding structure 1, and the first shielding structure 1 also has a second side opposite to the first side in the first direction; wherein, a first positioning pin 201, a second positioning pin 202 and a slot 203 extending beyond the edge of the calibration circuit board 2 are arranged in parallel on one side of the calibration circuit board 2 close to the second side along the first direction, and the slot 203 is close to the second positioning pin 202; a plurality of communication signal input interfaces 204, a first communication output cable 205 and a second communication output cable 206 are provided on the other side of the calibration circuit board 2 along the first direction, wherein the first communication output cable 205 and the second communication output cable 206 are both connected to the fast edge module 4.

[0030] Among them, the first locating pin 201, the second locating pin 202 and the slot 203 are located near the edge of the calibration circuit board 2, and all extend out of the calibration circuit board 2, wherein the first locating pin 201 and the second locating pin 202 are used to play a role of positioning and guiding when installing the calibration circuit board 2. Multiple communication signal input interfaces 204, the first communication output cable 205 and the second communication output cable 206 are located on the other side of the calibration circuit board 2, wherein the multiple communication signal input interfaces 204 include a 100M Ethernet input port, a 10M Ethernet input port and a 5G input port, the first communication output cable 205 is a REF output cable, and the second communication output cable 206 is an RF output cable. The first communication output cable 205 and the second communication output cable 206 are both connected to the fast edge module 4, which can realize the communication connection between the fast edge module 4 and the calibration circuit board 2.

[0031] In this embodiment, Figure 3 This is a bottom view of the integrated calibration module structure provided in one embodiment of the present application, refer to Figure 3 The other outer side wall of the first shielding structure 1 along the first direction X is provided with a second notch 102 and a third notch 103, the second notch 102 is used to accommodate the first positioning pin 201, the third notch 103 is used to accommodate the second positioning pin 202 and the slot 203, and the second shielding structure 3 is provided with a fourth notch 301 and a fifth notch 302 corresponding to the second notch 102 and the third notch 103 respectively.

[0032] The first shielding structure 1 is a rectangular box body without the first notch 101, the second notch 102 and the third notch 103. The two top ends of the first shielding structure 1 have the first notch 101 and the second notch 102 respectively. The second notch 102 is used to avoid the first positioning pin 201, and the third notch 103 is used to avoid the second positioning pin 202 and the slot 203, thereby saving materials. The second shielding structure 3 is provided with a fourth notch 301 corresponding to the second notch 102, and a fifth notch 302 corresponding to the third notch 103, which can also save materials.

[0033] In this embodiment, reference Figure 1 and Figure 2 The first shielding structure 1 is provided with a guide plate 104 on both outer side walls in the length direction. The guide plate 104 has a guiding function and a positioning function, and the guide plate 104 can increase the convenience of plugging and unplugging the integrated calibration module.

[0034] In this embodiment, the projection of the first shielding structure 1 on the calibration circuit board 2 has a first maximum length along the first direction X, wherein the first maximum length is the maximum distance from the side edge of the first shielding structure 1 on one side of the first direction X to the side edge of the other side. The projection of the second shielding structure 3 on the calibration circuit board 2 has a second maximum length along the first direction X, wherein the definition of the second maximum length is similar to the definition of the first maximum length. The first maximum length is equal to the second maximum length. The projection of the first shielding structure 1 on the calibration circuit board 2 has a third maximum length along the second direction Y, wherein the third maximum length is the maximum distance from the side edge of the first shielding structure 1 on one side of the second direction Y to the side edge of the other side. The projection of the second shielding structure 3 on the calibration circuit board 2 has a fourth maximum length along the second direction Y, and the fourth maximum length is similar to the definition of the third maximum length; the third maximum length is equal to the fourth maximum length; the calibration circuit board 2 has a fifth maximum length along the first direction X, and the fifth maximum length is similar to the definition of the second maximum length; the calibration circuit board 2 has a sixth maximum length along the second direction Y, and the sixth maximum length is similar to the definition of the fourth maximum length. The fifth maximum length is equal to the second maximum length, and the sixth maximum length is equal to the fourth maximum length. The purpose of such arrangement is to ensure that the maximum length and the maximum width of the calibration circuit board 2 cannot exceed the range of the first shielding structure 1 and the second shielding structure 3 , thereby further improving the shielding and shock resistance of the calibration circuit board 2 .

[0035] In this embodiment, Figure 4 A top view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application, Figure 5 A front view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application, Figure 6 This is a left view of a fast-edge module of an integrated calibration module structure provided in an embodiment of the present application, referring to Figure 1 , Figure 4 , Figure 5 and Figure 6 The fast edge module 4 may include a cover plate 403 and a rectangular box body 401 connected to the cover plate 403, which is located on one side of the calibration circuit board 2 along the third direction, and the rectangular box body 401 is close to the first shielding structure 1, wherein the third direction is the thickness direction of the cavity; the fast edge component is arranged in the rectangular box body 401; a plurality of mounting grooves are arranged in the rectangular box body 401; one end of a plurality of insulating cylinders 405 is connected to the outer wall of the bottom of the rectangular box body 401, and the other end is inserted into the connection area; a first circular hole 406 is arranged on the outer wall of the rectangular box body 401; a second circular hole 407 is arranged on the outer wall of the first notch 101; a plurality of RF signal output interfaces 408 are arranged on the outer wall of the rectangular box body 401 close to the second circular hole 407.

[0036] The fast-edge module 4 may include a fast-edge component, a cover plate 403, and a rectangular box body 401. The cover plate 403 and the rectangular box body 401 are fixed sequentially by screws from top to bottom, which increases the stability of the connection. The edge where the cover plate 403 and the rectangular box body 401 are connected is reserved for a notch for tilting the cover plate 403, so as to facilitate maintenance. The rectangular box body 401 has a fast-edge component inside. The rectangular box body 401 has a compact internal layout and has multiple grooves for accommodating the fast-edge component, which can avoid signal leakage and reduce the difficulty of assembling the fast-edge component. The rectangular box body 401 is inserted into the calibration circuit board 2 through multiple insulating cylinders 405. The outer side wall of the rectangular box body 401 has a first circular hole 406 and a second circular hole 407.

[0037] In this embodiment, reference Figure 1 and Figure 4 The fast-edge component may include a fast-edge micro-device, a first signal connector and a second signal connector. The micro-device is fixed in the mounting groove; one end of the first signal connector is connected to the fast-edge micro-device for communication, and the other end is connected to the first communication output cable 205 through the first circular hole 406; one end of the second signal connector is connected to the fast-edge micro-device for communication, and the other end is connected to the second communication output cable 206 through the second circular hole 407.

[0038] In this embodiment, reference Figure 1 and Figure 2 The first shielding structure 1 is provided with right-angled hanging ears 105 on both outer side walls in the length direction. The right-angled hanging ears 105 are used to fix the integrated calibration module on the rack to prevent the integrated calibration module from falling.

[0039] In this embodiment, reference Figure 1 and Figure 3 , the first shielding structure 1 and the second shielding structure 3 are provided with a plurality of sub-cavities 303 at corresponding positions along the third direction Z. Specifically, the first shielding structure 1 and the second shielding structure 3 adopt a sub-cavity structure, which is in a maze form and can accommodate various devices of the calibration circuit board 2, thereby reducing the crosstalk between signals of different devices on the circuit board. The first shielding structure 1 and the second shielding structure 3 are made of metal materials, which can also prevent signal leakage.

[0040] In this embodiment, reference Figure 2 and Figure 4 The outer wall of the first shielding structure 1 close to the first notch 101 is further provided with a plurality of sixth notches 106 , and the plurality of sixth notches 106 are used to respectively accommodate a plurality of communication signal input interfaces 204 .

[0041] The embodiment of the present application utilizes an integrated calibration module structure to integrate the fast-edge module with the calibration module, thereby improving signal transmission reliability, increasing the overall vibration resistance of the integrated calibration module, and improving assembly and maintenance efficiency. The integrated calibration module is easy and stable to assemble and has excellent shielding performance.

[0042] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An integrated calibration module, characterized in that: include: A calibration circuit board (2), a fast-edge module (4) and a fixing structure, wherein the fixing structure is used to fix the calibration circuit board (2) and the fast-edge module (4); the fixing structure comprises: A first shielding structure (1); a second shielding structure (3), arranged opposite to the first shielding structure (1) and enclosing a cavity with the first shielding structure (1), wherein the calibration circuit board (2) is fixed in the cavity; Wherein, the calibration circuit board (2) is provided with a connection area for connecting with the fast edge module (4); The first shielding structure (1) is provided with a first notch at a position relative to the connection area, and the fast edge module (4) is located in the first notch and is communicatively connected to the calibration circuit board (2).

2. An integrated calibration module as claimed in claim 1, characterized in that: The notch is opened on a first side of the first shielding structure (1), and the first shielding structure (1) also has a second side opposite to the first side in a first direction; Wherein, the calibration circuit board (2) is provided with a first positioning pin (201), a second positioning pin (202) and a slot (203) in parallel on one side of the calibration circuit board (2) close to the second side along the first direction and extending beyond the edge of the calibration circuit board (2), and the slot (203) is close to the second positioning pin (202); The calibration circuit board (2) is provided with a plurality of communication signal input interfaces (204), a first communication output cable (205) and a second communication output cable (206) on the other side along the first direction, wherein the first communication output cable (205) and the second communication output cable (206) are both connected to the fast edge module (4).

3. An integrated calibration module as claimed in claim 2, characterized in that: A second notch (102) and a third notch (103) are provided on the second side of the first shielding structure (1); The second notch (102) is used to accommodate the first positioning pin (201), and the third notch (103) is used to accommodate the second positioning pin (202) and the slot (203); The second shielding structure (3) is provided with a fourth notch (301) and a fifth notch (302) which correspond to the second notch (102) and the third notch (103) respectively.

4. An integrated calibration module as claimed in claim 2, characterized in that: The first shielding structure (1) is provided with a guide plug plate (104) on both outer side walls in the length direction thereof.

5. An integrated calibration module as claimed in claim 4, characterized in that: The orthographic projection of the first shielding structure (1) on the calibration circuit board (2) has a first maximum length in the first direction, and the orthographic projection of the second shielding structure (3) on the calibration circuit board (2) has a second maximum length in the first direction, and the first maximum length is equal to the second maximum length; The orthographic projection of the first shielding structure (1) on the calibration circuit board (2) has a third maximum length in the second direction, and the projection of the second shielding structure (3) on the calibration circuit board (2) has a fourth maximum length along the second direction; the third maximum length is equal to the fourth maximum length, and the second direction is the length direction of the first shielding structure (1); The calibration circuit board (2) has a fifth maximum length along the first direction, the calibration circuit board (2) has a sixth maximum length along the second direction, the fifth maximum length is equal to the second maximum length, and the sixth maximum length is equal to the fourth maximum length.

6. An integrated calibration module as claimed in claim 5, characterized in that: The fast-edge module (4) comprises a cover plate (403) and a rectangular box body (401) connected to the cover plate (403), and is located on one side of the calibration circuit board (2) along a third direction, the rectangular box body (401) being close to the first shielding structure (1), wherein the third direction is the thickness direction of the cavity; A fast edge component is arranged in the rectangular box body (401); A plurality of installation slots, located in the rectangular box body (401); A plurality of insulating columns (405), one end of which is connected to the outer side wall along the bottom of the rectangular box body (401), and the other end of which is inserted into the connection area; A first circular hole (406) is provided on the outer side wall of the rectangular box body (401); A second circular hole (407) is provided on the outer side wall of the first notch (101); A plurality of radio frequency signal output interfaces (408) are arranged on the outer side wall of the rectangular box body (401) close to the second circular hole (407).

7. An integrated calibration module as claimed in claim 6, characterized in that: The fast edge component comprises: A fast-edge micro-device is fixedly arranged in the mounting groove; A first signal connector, one end of which is communicatively connected to the fast-edge micro-device, and the other end of which is connected to the first communication output cable (205) through the first circular hole (406); The second signal connector has one end connected to the fast-edge micro device for communication, and the other end connected to the second communication output cable (206) through the second circular hole 407.

8. An integrated calibration module as claimed in claim 4, characterized in that: The first shielding structure (1) is provided with right-angled hanging ears (105) on both outer side walls in the length direction thereof.

9. An integrated calibration module as claimed in claim 5, characterized in that: A plurality of grooves are provided on the mutually opposite sides of the first shielding structure (1) and the second shielding structure (3), and the grooves are used to place corresponding functional components of the calibration circuit board (2).

10. An integrated calibration module as claimed in claim 2, characterized in that: The outer side wall of the first shielding structure (1) close to the first notch (101) is also provided with a plurality of sixth notches (106), and the plurality of sixth notches (106) are used to respectively accommodate a plurality of the communication signal input interfaces (204).

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