A small PCB radio frequency board test cluster assembly

Abstract

The utility model relates to communication equipment technical field, concretely is a kind of small-sized PCB radio frequency board test cluster assembly.Cable outer conductor is welded with welding cup and the side wall section shape of welding cup is square, then the pressing plate is designed to be composed of first pressing plate and second pressing plate, first pressing plate and second pressing plate are arranged mirror image symmetry and jointly form the square through-hole compatible with welding cup, the square through-hole is used for the outside cable to be inserted into to the cavity and is connected with connector docking, under the cooperation of welding cup and square through-hole, the rotation of cable along its axial direction can be prevented, to ensure the connection stability of cable and connector.Elastic pressing plate is placed at the cavity mouth of the cavity and covers all the cavities, and the pressing plate is locked on the cluster shell to press the elastic pressing plate, the elastic pressing plate has a certain deformation capacity, and the manufacturing error between the height of the multiple connectors and the height of the cavities is compensated by deformation, to ensure the contact reliability of the cable outer conductor and the cluster shell after assembly.

Description

Technical Field

[0001] This utility model relates to the field of communication equipment technology, specifically a small PCB radio frequency board test cluster assembly. Background Technology

[0002] In cable bundled assemblies, the connection between cables and connectors is typically achieved through a plug-in method, with the cable unrestricted in its circumferential direction. This facilitates quick connection between the cable and connector, but it also increases the risk of poor connection, thus affecting the reliability of the cable connection. Furthermore, the height between the cable's outer conductor end face and the connector shoulder (i.e., its dimension is composed of the dimensions of multiple parts) and the height of the connector mounted on the bundled housing are both susceptible to dimensional errors during manufacturing. These errors can lead to unreliable contact between the cable's outer conductor and the contact plate. To ensure the reliability of the cable's outer conductor connection, spring devices are usually placed on the outer conductor of each cable, or the contact point between the outer conductor and the contact plate is designed as an elastic structure. The former makes the structure complex and is not conducive to product miniaturization, while the latter has higher manufacturing costs and requires the use of specific elastic materials and heat treatment processes. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a small PCB RF board test cluster assembly to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A small PCB RF board test cluster assembly includes a cluster housing, a pressure plate, an elastic pressure plate, a solder cup, and a contact plate. The cluster housing has multiple placement cavities arranged side by side, and each placement cavity is used to place a connector. Each placement cavity has openings at both ends. The elastic pressure plate and the contact plate are respectively placed over the openings at both ends of the placement cavity and cover all placement cavities. The pressure plate is locked onto the cluster housing to press the elastic pressure plate tightly. The elastic pressure plate compensates for manufacturing errors between the height of multiple connectors and the height of the placement cavities through deformation. The sidewall cross-section of the solder cup is square. The solder cup is soldered to the outer conductor of a cable. The pressure plate includes a first pressure plate and a second pressure plate. The first pressure plate and the second pressure plate are arranged in a mirror-symmetrical manner and together form a square through hole adapted to the solder cup. The square through hole is used to allow an external cable to extend into the placement cavity and dock with the connector.

[0005] Preferably, the bundled housing forms a first recess at the corresponding placement cavity, and the pressure plate is adapted to the first recess. When the pressure plate is placed in the first recess, the pressure plate is flush with the outer edge of the first recess.

[0006] Preferably, the first pressure plate and the second pressure plate are respectively mounted on the bundle housing by fastening screws.

[0007] Preferably, there are multiple square through holes, which are spaced apart along the extension direction of the mating line between the first pressure plate and the second pressure plate.

[0008] Preferably, the bundled housing forms a second recess at the placement cavity, and the pressure plate has a boss on the side facing the placement cavity, the boss being embedded in the second recess where the placement cavity is located.

[0009] Preferably, the connector includes an inner conductor, which is welded to the inner conductor of the cable; The elastic pressure plate has through holes for cables and welding cups to pass through, and the square through holes on the pressure plate are arranged one-to-one with the through holes on the elastic pressure plate.

[0010] Preferably, the diameter of the through hole on the elastic pressure plate is smaller than the size of the cavity opening; the edge of the welding cup extends outward to form a shoulder, and the elastic pressure plate is tightly fitted to the shoulder of the welding cup.

[0011] Preferably, the sum of the thickness of the boss and the thickness of the elastic pressure plate is not less than the depth of the recess.

[0012] Preferably, the end face of the contact plate facing the placement cavity has stepped holes that correspond one-to-one with the placement cavity. The top of the first step on the stepped hole abuts against the outer conductor of the cable, and the top of the second step on the stepped hole abuts against the first insulator of the connector.

[0013] The beneficial effects of this utility model are: This utility model provides a small PCB RF board test cluster assembly. Based on existing structures, a solder cup is welded to the outer conductor of the cable, and the sidewall of the solder cup has a square cross-section. The pressure plate is designed to consist of a first pressure plate and a second pressure plate, which are arranged mirror-symmetrically and together form a square through-hole adapted to the solder cup. This square through-hole allows the external cable to extend into the placement cavity and connect with the connector. The cooperation between the solder cup and the square through-hole prevents the cable from rotating along its axial direction, thus ensuring the connection stability between the cable and the connector. The mirror-symmetrical arrangement of the two pressure plates facilitates quick assembly and disassembly, improving assembly efficiency. An elastic pressure plate is added and placed at the opening of the placement cavity, covering all placement cavities. The pressure plate is locked onto the cluster housing to press the elastic pressure plate tightly. The elastic pressure plate is made of elastic material and has a certain deformation capacity. The elastic pressure plate compensates for manufacturing errors between the height of multiple connectors and the height of the placement cavity through deformation, ensuring reliable contact between the outer conductor of the cable and the cluster housing after assembly. Attached Figure Description

[0014] Figure 1This is a top view of a small PCB RF board test cluster assembly according to this utility model; Figure 2 yes Figure 1 Sectional view at point AA; Figure 3 yes Figure 2 A magnified view of a section at point B in the middle; Figure 4 This is a schematic diagram of the structure of the first pressure plate of a small PCB RF board test cluster assembly according to this utility model; Explanation of icon numbers: 1. Bundle housing; 2. Pressure plate; 21. First pressure plate; 22. Second pressure plate; 23. Square through hole; 3. Elastic pressure plate; 4. Contact plate; 5. Connector; 51. Solder cup; 52. Inner conductor; 53. Outer conductor; 54. First insulator; 55. Second insulator; 56. Contact pin spring; 57. Contact pin; 6. Cable; 7. Fastening screw; 8. Fastening screw; 9. Locating pin. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: See Figures 1 to 4 This utility model provides a small PCB RF board test cluster assembly, including a cluster housing, a pressure plate, an elastic pressure plate, a solder cup, and a contact plate. The cluster housing has multiple placement cavities arranged side by side, and each placement cavity is used to place a connector. Each placement cavity has an opening at both ends. The elastic pressure plate and the contact plate are respectively placed at the openings at both ends of the placement cavity and cover all placement cavities. The pressure plate is locked onto the cluster housing to press the elastic pressure plate tightly. The elastic pressure plate compensates for manufacturing errors between the height of multiple connectors and the height of the placement cavities through deformation. The side wall cross-section of the solder cup is square. The solder cup is welded to the outer conductor of a cable. The pressure plate includes a first pressure plate and a second pressure plate. The first pressure plate and the second pressure plate are arranged in a mirror symmetrical manner and together form a square through hole adapted to the solder cup. The square through hole is used to allow an external cable to extend into the placement cavity and dock with the connector.

[0016] The beneficial effects of this utility model are: This utility model provides a small PCB RF board test cluster assembly. Based on existing structures, a solder cup is welded to the outer conductor of the cable, and the sidewall of the solder cup has a square cross-section. The pressure plate is designed to consist of a first pressure plate and a second pressure plate, which are arranged mirror-symmetrically and together form a square through-hole adapted to the solder cup. This square through-hole allows the external cable to extend into the placement cavity and connect with the connector. The cooperation between the solder cup and the square through-hole prevents the cable from rotating along its axial direction, thus ensuring the connection stability between the cable and the connector. The mirror-symmetrical arrangement of the two pressure plates facilitates quick assembly and disassembly, improving assembly efficiency. An elastic pressure plate is added and placed at the opening of the placement cavity, covering all placement cavities. The pressure plate is locked onto the cluster housing to press the elastic pressure plate tightly. The elastic pressure plate is made of elastic material and has a certain deformation capacity. The elastic pressure plate compensates for manufacturing errors between the height of multiple connectors and the height of the placement cavity through deformation, ensuring reliable contact between the outer conductor of the cable and the cluster housing after assembly.

[0017] Preferably, the bundled housing forms a first recess at the corresponding placement cavity, and the pressure plate is adapted to the first recess. When the pressure plate is placed in the first recess, the pressure plate is flush with the outer edge of the first recess.

[0018] As can be seen from the above description, the product miniaturization effect can be achieved through the specific structural design described above.

[0019] Preferably, the first pressure plate and the second pressure plate are respectively mounted on the bundle housing by fastening screws.

[0020] As can be seen from the above description, it facilitates the assembly and disassembly of the first and second pressure plates.

[0021] Preferably, there are multiple square through holes, which are spaced apart along the extension direction of the mating line between the first pressure plate and the second pressure plate.

[0022] As described above, it can connect multiple cables simultaneously, improving testing efficiency.

[0023] Preferably, the bundled housing forms a second recess at the placement cavity, and the pressure plate has a boss on the side facing the placement cavity, the boss being embedded in the second recess where the placement cavity is located.

[0024] As can be seen from the above description, through the above structural design, the boss and the second recess cooperate to play a positioning role, thereby ensuring that the square through hole and the placement cavity are kept on the same straight line in the axial direction, which improves the connection stability.

[0025] Preferably, the connector includes an inner conductor, which is welded to the inner conductor of the cable; The elastic pressure plate has through holes for cables and welding cups to pass through, and the square through holes on the pressure plate are arranged one-to-one with the through holes on the elastic pressure plate.

[0026] As described above, the electrical connection structure between the connector and the cable is achieved by welding the inner conductor to the inner conductor of the cable. The through hole allows the external cable to extend into the placement cavity.

[0027] Preferably, the diameter of the through hole on the elastic pressure plate is smaller than the size of the cavity opening; the edge of the welding cup extends outward to form a shoulder, and the elastic pressure plate is tightly fitted to the shoulder of the welding cup.

[0028] As described above, the elastic pressure plate is tightly fitted to the shoulder of the welding cup, serving as a limiting element to ensure reliable contact between the cable outer conductor and the bundle housing.

[0029] Preferably, the sum of the thickness of the boss and the thickness of the elastic pressure plate is not less than the depth of the recess.

[0030] As described above, it is essential to ensure a tight fit between the pressure plate, the elastic pressure plate, and the bundle housing.

[0031] Preferably, the end face of the contact plate facing the placement cavity has stepped holes that correspond one-to-one with the placement cavity. The top of the first step on the stepped hole abuts against the outer conductor of the cable, and the top of the second step on the stepped hole abuts against the first insulator of the connector.

[0032] As described above, the structural design allows the contact pins to pass through the contact plate and effectively contact the device under test (DUT) under the action of the spring. The contact plate has stepped holes, and when the cluster head is locked to the DUT by the fastening screws, a multi-channel RF connection link is formed.

[0033] Example 1 See Figures 1 to 4 The present invention provides a small PCB RF board test cluster assembly, including a cluster housing 1, a pressure plate 2, an elastic pressure plate 3, a solder cup 51, and a contact plate 4; The bundle housing 1 is provided with multiple placement cavities arranged side by side, and the placement cavities are used to place connectors. The two ends of each placement cavity have openings. The elastic pressure plate 3 and the contact plate 4 are respectively covered at the two end openings of the placement cavity and cover all placement cavities. The pressure plate 2 is locked onto the bundle housing 1 so that the pressure plate presses against the elastic pressure plate. The elastic pressure plate 3 compensates for the manufacturing error between the height of multiple connectors and the height of the placement cavity through deformation. In this embodiment, the elastic pressure plate can be made of existing rubber material. The height between the outer conductor end face of the cable connection and the shoulder of the connector, as well as the height of the connector mounted on the bundled housing, may have dimensional errors during the processing, but the dimensional error is usually no more than 0.15mm. Therefore, in this solution, the thickness of the elastic pressure plate is selected as 1.5mm, which is sufficient to compensate for the problems caused by the dimensional error.

[0034] The welding cup 51 has a square cross-sectional shape on its sidewall. The welding cup 51 is welded to the outer conductor of the cable. The pressure plate 2 includes a first pressure plate 21 and a second pressure plate 22, which are arranged symmetrically and together form a square through-hole 23 that matches the welding cup. The square through-hole 23 allows the external cable to extend into the placement cavity and connect with the connector. This structure facilitates assembly. The radial cross-section of the square through-hole is square, i.e., a square groove. With this structure, the outer conductor of the cable is embedded in the square groove. The cooperation between the welding cup and the square through-hole prevents the cable from rotating axially, further ensuring the stability of the electrical connection.

[0035] In this embodiment, there are multiple square through holes, which are spaced apart along the extension direction of the mating line between the first and second pressure plates. This allows for the simultaneous mating of multiple cables, improving testing efficiency.

[0036] Specifically, the bundle housing 1 forms a first recess at the corresponding placement cavity, and the pressure plate 2 is disposed at the corresponding placement cavity of the bundle housing. The pressure plate 2 is adapted to the first recess, and when the pressure plate is placed in the first recess, the pressure plate is flush with the outer edge of the first recess.

[0037] Preferably, the bundle housing 1 forms a second recess at the placement cavity, and the pressure plate 2 has a boss on the side facing the placement cavity, the boss being embedded in the second recess where the placement cavity is located.

[0038] In this embodiment, the connector 5 includes a solder cup 51 and an inner conductor 52. The solder cup 51 is soldered to the outer conductor of the cable 6, and the inner conductor 52 is soldered to the inner conductor of the cable 6. The elastic pressure plate has through holes for the cable and solder cup to pass through, and the square through holes on the pressure plate are arranged opposite to the through holes on the elastic pressure plate. By soldering the solder cup to the outer conductor of the cable and the inner conductor to the inner conductor of the cable, the electrical connection structure between the connector and the cable is realized. The through holes allow the external cable to extend into the placement cavity through the through holes.

[0039] The connector also includes an outer conductor 53 and a first insulator 54, a second insulator 55, a contact pin spring 56, and a contact pin 57, all disposed inside the outer conductor 53. The solder cup abuts against the end face of the outer conductor, the second insulator 55 is sleeved on the middle of the inner conductor, the contact pin 57 contacts the inner conductor through the contact pin spring 56, and the first insulator 54 is sleeved on the contact pin 57. The dimensions of the connector accessories are designed according to the impedance standard of the RF connector. The contact pin spring can provide elastic space for the contact pin to ensure reliable contact between the contact pin and the connected component.

[0040] The diameter of the through hole on the elastic pressure plate 3 is smaller than the size of the cavity opening; the edge of the welding cup extends outward to form a shoulder, and the elastic pressure plate is tightly attached to the shoulder of the welding cup to limit the movement and ensure the reliability of the contact between the outer conductor of the cable and the bundle housing.

[0041] The pressure plate 2 has a boss on its side facing the elastic pressure plate. The surface of the boss contacts the elastic pressure plate and is embedded in the recess of the placement cavity. Both the contact surfaces of the boss and the elastic pressure plate are smooth planes. The boss presses the elastic pressure plate tightly to prevent the cable from moving axially. The sum of the thickness of the boss and the thickness of the elastic pressure plate is not less than the depth of the recess, ensuring a tight fit between the pressure plate, the elastic pressure plate, and the bundle housing.

[0042] The contact plate 4 is made of a metal material with good electrical conductivity, preferably gold-plated brass, and is fixed to the cluster housing by fastening screws 8 on both sides. The cluster housing is also provided with positioning pins 9, and the contact plate has positioning holes that cooperate with the positioning pins 9 to facilitate further precise positioning.

[0043] The pressure plate is provided with mounting holes, and the contact plate is provided with mounting holes. The fastening screw 7 passes through the mounting holes of the pressure plate and the bundled housing and is fixedly connected to the mounting holes of the contact plate.

[0044] The contact plate has stepped holes on its end face facing the placement cavity, each corresponding to a different cavity. The first step of each stepped hole abuts against the outer conductor of the cable, and the second step abuts against the first insulator of the connector. This structural design allows the contact pins to pass through the contact plate and effectively contact the device under test (DUT) under the action of a spring. The stepped holes on the contact plate, when the cluster head is locked to the DUT with fastening screws, form a multi-channel RF connection link.

[0045] The structure of this utility model is simple to assemble, compact, meets the requirements of miniaturization, and ensures reliability. At the same time, the cable adopts a packaged installation method, which also makes the cable interchangeable and maintainable.

[0046] This utility model has been described with reference to the above-described embodiments and accompanying drawings. However, the above embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. On the contrary, modifications and equivalent provisions included in the spirit and scope of the claims are all included within the scope of this utility model.

Claims

1. A small PCB RF board test cluster assembly, characterized in that: The device includes a bundle housing, a pressure plate, an elastic pressure plate, a solder cup, and a contact plate. The bundle housing has multiple placement cavities arranged side by side, and each placement cavity is used to place a connector. Each placement cavity has openings at both ends. The elastic pressure plate and the contact plate are respectively placed over the openings at both ends of the placement cavity and cover all placement cavities. The pressure plate is locked onto the bundle housing to press the elastic pressure plate tightly. The elastic pressure plate compensates for manufacturing errors between the height of multiple connectors and the height of the placement cavities through deformation. The sidewall cross-section of the solder cup is square. The solder cup is soldered to the outer conductor of the cable. The pressure plate includes a first pressure plate and a second pressure plate. The first pressure plate and the second pressure plate are arranged in a mirror-symmetrical manner and together form a square through hole adapted to the solder cup. The square through hole is used to allow an external cable to extend into the placement cavity and dock with the connector.

2. The small PCB RF board test cluster assembly according to claim 1, characterized in that: The bundled housing forms a first recess at the corresponding placement cavity. The pressure plate is adapted to the first recess. When the pressure plate is placed in the first recess, the pressure plate is flush with the outer edge of the first recess.

3. The small PCB RF board test cluster assembly according to claim 1, characterized in that: The first pressure plate and the second pressure plate are respectively installed on the bundle housing by fastening screws.

4. The small PCB RF board test cluster assembly according to claim 1, characterized in that: The number of square through holes is multiple, and they are spaced apart along the extension direction of the mating line between the first pressure plate and the second pressure plate.

5. A small PCB RF board test cluster assembly according to claim 1, characterized in that: The bundled housing forms a second recess at the corresponding placement cavity, and the pressure plate has a boss on the side facing the placement cavity, the boss being embedded in the second recess where the placement cavity is located.

6. The small PCB RF board test cluster assembly according to claim 5, characterized in that: The connector includes an inner conductor, which is welded to the inner conductor of the cable. The elastic pressure plate has through holes for cables and welding cups to pass through, and the square through holes on the pressure plate are arranged one-to-one with the through holes on the elastic pressure plate.

7. A small PCB RF board test cluster assembly according to claim 6, characterized in that: The diameter of the through hole on the elastic pressure plate is smaller than the size of the cavity opening; the edge of the welding cup extends outward to form a shoulder, and the elastic pressure plate is tightly fitted to the shoulder of the welding cup.

8. A small PCB RF board test cluster assembly according to claim 7, characterized in that: The sum of the thickness of the boss and the thickness of the elastic pressure plate is not less than the depth of the second recess.

9. A small PCB RF board test cluster assembly according to claim 1, characterized in that: The contact plate has stepped holes distributed on its end face facing the placement cavity, each corresponding to a step in the placement cavity. The top of the first step in the stepped hole abuts against the outer conductor of the cable, and the top of the second step in the stepped hole abuts against the first insulator of the connector.

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